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Pallet systems 97

Pallet systems, single track – XL, XM, XK

Pallet systems

Pallet conveyor system XM

IntroductionThe FlexLink standard conveyor system includes pallet handling components for the XL, XM, and XK conveyors. The systems include

• Pallets

• Special guide rail brackets and guide rails

• Pallet locating stations

• Pallet stops

• Pallet transfer station (XM)

Modular pallet conveyor system XT

In addition to the standard pallet conveyors, a modular twin-track pallet conveyor system has been developed. See handbook section Modular twin-track pallet system.

Conveyor systems XL and XMThe pallet handling components for conveyor systems XL and XM are designed for light to medium loads from max-imum 3 kg (XL) up to maximum 8 kg (XM). The maximum size of the products on the pallets depends on the shape of the products and the location of their centre of gravity.

The XL pallet system includes a special flanged guide rail which prevents pallets from climbing when accumu-lated.

Guide rail brackets specifically designed for the pallet track width are available. The systems also include pre-bent guide rails for bends. System XM uses standard guide rails.

Conveyor system XKThe pallet handling components for conveyor system XK satisfy the demands for a sturdy pallet conveyor for medium to heavy loads in demanding environments. Heavy-duty conveyor beams, sturdy pallets, and a strong chain permit item weights up to 30 kg. The maximum size of the products on the pallets depends on the shape of the products and the location of their centre of gravity.

Robust side support components permit accumula-tion for up to 200 kg per stop device, even in wheel bends.

The XK pallet system also includes components for construction of 45° and 90° diverters and merge devices, complete with drip pan kits.

Chain for XK pallet handling

A special chain type XKTP 5 A was developed for use with the XK pallet handling system. The standard plain chain XKTP 5 cannot be used.

Fully compatibleThe pallet handling components are fully compatible with the other components in the FlexLink programme. Designing and building a FlexLink pallet conveyor is quick and easy, and the resulting conveyor retains the flexibility typical of all FlexLink products.

System XK with standard and custom pallets

98 Pallet systems, overview

Pallet systems (continued)

Technical specifications XL pallet

XM pallets

XK pallets

Pallet systems, overview

Pallet type Size (W×L)mm

Max. load on palletkg

XLPP 100×100 100×100 3

Pallet type Size (W×L)mm

Max. load on palletkg

XMPP 150×120 150×120 5

XMPP 150×150 150×150 6

XMPP 150×200 150×200 7

XMPP 150×250 150×250 8

Pallet type Size (W×L)mm

Max. load on palletkg

XKPP 200×150 200×150 30

XKPP 250×225 250×225 30

XKPP 300×300 300×300 30

Products XL XM XKChain width 63 mm 83 mm 102 mm

Pallets XLPP 100×100 XMPP * XKPP *

Conveyor beam XLCB XMCB XKCB

Conveyor chain XLTP 5 XMTP 5 XKTP 5/5 A

Straight guide rail XLRS *×10 FL XLRS *×15 XKRS 3×42XKRS 3×100

Outer guide rail for bend 3904897/3904896 3904899/3904898 3927174, 392717, 3927172, 3927171

Inner guide rail for bend 3905239/3905238 3927170, 3927169, 3927168, 3927167

Fixed guide rail brackets XLRB 29×36 XLRB 49×42 XKRB 30×74

Pallet locating station XLPX 100 A XMPX 150 A XKPX 175 A

Pallet stop device XLPD 20×10 XMPD 20×10 E XKPD 32×15 LAXKPD 32×15 A

Pallet transfer station XMPT 150×165

Diverter kits XKPJ * DL A/DR AXKPJ * DLW A/DRW A

Merge kits XKPJ * ML A/MR AXKPJ * MLW A/MRW A

Combined divert/merge kits XKPJ * CL A/CR AXKPJ CLW A/CRW A

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Pallets – XL 99

Pallets – XL

IntroductionFlexLink conveyor system XL includes symmetrical pal-lets in one size. For low wear and friction the pallets are normally equipped with snap-in slide blocks or rollers.

Slide blocks are used in most standard applications. They can be used for inclines up to 3°.

Rollers are used to reduce the queue forces when heavily loaded pallets are accumulated. Pallets with roll-ers cannot be used if plain chain is used in inclines. Transfer to cleated chain is recommended for level changes.

Accurate pallet indexing is ensured by horizontal and vertical V-grooves on two sides of the pallet.

Holes and pockets for screws, nuts and locating pins facilitate quick and flexible attachment of various fixtures. The pallets can be equipped with steel initiator plates for position sensors. The plates can be located in two posi-tions.

The pallets can also be equipped with shock absorb-ers, one on each side in the transport direction.

Accumulation of pallets in the conveyor bends should be avoided.

MaterialsPallet .............................. Mineral reinforced PPE/PASlide blocks.................... UHMW-PERollers............................ Polyacetal resinShafts for rollers............. Stainless steelShock absorber.............. Thermoplastic ethylene + poly-

propylene

Water absorption can cause pallets to swell in wet appli-cations. This can result in slight changes in pallet dimen-sions and rigidity.

Technical specifications

*The maximum load includes weight of fixture and com-ponent weight.

The pallet is 22 mm high with rollers or slide block attached.

Friction between pallet and chain:

Rollers............................ µ=0,05Slide block ..................... µ=0,1

Ordering informationAccessories needed for one pallet:

Pallet type Lengthmm

Weightkg

Max. load*kg

XLPP 100×100 100 0,11 3,0

XLPS 67 Slide block 2or 3904055 Shaft/roller kit 33904052 Shock absorber 2XLPL 30×20 Initiator plate 1 or 2

100 Guide rail system – XL

Guide rail system – XL

Introduction Guide rail bracket

A fixed guide rail bracket is specially designed for the XL pallet handling system. The bracket ensures that the cor-rect track width is obtained when 10 mm wide guide rail is used.

The recommended distance between brackets is 0,3 m to 1,5 m. The distance between brackets depends on the side forces to be expected. In buffer conveyors with side forces, a much shorter distance between brack-ets is required than in non-buffering applications.

Guide rail profile for XL pallets

The straight guide rail profile XLRS 3×10 FL has a top flange matching the edge of the XL pallet. The flange prevents the pallet from climbing in queues.

In straight sections without accumulation, standard guide rail XLRS 3×10 can be used without problems. Note that if the flanged guide rail is used exclusively, it may become difficult to place a pallet on the chain, or to remove it, without tools.

Pre-bent guide rails for pallets

The guide rail bends for XL pallet handling systems elim-inate the need for precision bending of guide rails at assembly time. The bends are intended for use with our special aluminium guide rail profile for XL pallets. The bends come in 90° and 180° versions, and are available for outer as well as inner bends.

Other angles can be made simply by cutting out a middle portion of one of the standard bends, then joining the two parts, with a guide rail bracket supporting the joint.

Important

Accumulation in bends must be avoided.

MaterialsThe guide rails, guide rail bends, and guide rail bracket are made of anodized aluminium.

Tools and accessoriesThe guide rails are secured to the guide rail bracket by means of spring pins (XLAP 28). T-bolts and nuts are used to fasten the guide rail bracket to the beam. Con-necting sleeve XLRJ 100 is recommended to connect an inner guide rail bend to the straight sections. See hand-book section Guide rail components for details.

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Pallet locating station – XL 101

Pallet locating station – XL

IntroductionThe locating station for conveyor XL is used for locating FlexLink pallets type XLPP 100. The pallet is located between a fixed horizontal wedge on one side and a mov-able cross wedge on the other side. The cross wedge is actuated by a pneumatic cylinder.

The pallets are stopped by a pneumatic pallet stop cylinder near the desired position. There, a proximity switch on the locating station frame activates the locating cylinder. In located position the pallets are lifted approxi-mately 0,5 mm above the chain, and moved 1,5 mm off centre, towards the fixed wedge.

T-bolts and nuts are used to secure the locating sta-tion to the conveyor beam. The locating station is equipped with flanges and holes suitable for connection to a common robot support base. The distance from the centre of the conveyor beam to the connecting flanges is the same as for beam support bracket XLCT 21×125 (125 mm).

The pneumatic system will vary depending on special customer requirements. An example is shown in the illus-tration.

MaterialsFrame............................. Cast aluminiumHorizontal wedge ........... Hardened steelCross wedge.................. Hardened steel

Technical specificationsLocating accuracy.............................. ±0,1 mmLocating force at 0,6 MPa .................. 460 NMaximum vertical force incl. pallet weight ................................................ 300 N

Ordering informationT-bolts and nuts for mounting the locating station to the conveyor beam are included. Mounting hardware for con-nection to a support structure must be ordered sepa-rately.

The proximity sensors (∅ 12 mm, not supplied by FlexLink Systems) must have a minimum effective sens-ing distance of 2,5 mm to the initiating surface (alumin-ium).

Example: the effective sensing distance for SICK (IM12 sensing range 8 mm) is 5,18 mm. This is calculated as follows: 8 mm × 0,81* × 0,45** = 2,92 mm. (*Useful sens-ing range = 0,81 × nominal sensing range, **Reduction factor for aluminium.)

0,6 MPa

102 Pallet stop cylinder – XL

Pallet stop cylinder – XL

IntroductionThe pneumatic stop cylinder for conveyor system XL is used to stop XLPP 100 pallets at locating stations, or as queue stop before the stations. Where maximum accu-racy is not needed, the stop cylinder can be used for locating purposes.

The pallet stop consists of a cylinder housing with a plunger. The plunger is operated by a double-actuated pneumatic cylinder mounted on the cylinder housing.

The cylinder is designed to resist pushing forces, but it is not recommended to use the cylinder for pulling. To prevent swivelling the plunger is designed with a square cross-section.

The pneumatic cylinder includes a shock absorber. It has provisions for attachment of cylinder position sen-sors.

MaterialsHousing, cover ......................... Anodized aluminiumPlunger ..................................... Polyamide with steel topBracket for proximity switch ...... Anodized aluminium

Technical specificationsPneumatic connection.............. M5Stroke....................................... 10 mmCylinder diameter..................... 20 mmTheoretical force at 0,6 MPa................................ 130 N – minus directionMax. kinetic energy .................. See diagram

The diagram shows maximum pallet load as a function of the conveyor speed.

Tools and accessoriesThe cylinder is secured to the beam by means of a fas-tener kit (supplied with the cylinder) consisting of XLAT 35 T-bolts, flat washers, and locking nuts. It is also possible to use square nuts together with screws. A pneumatic cylinder (Rexroth-Mecman) with pipe connec-tions for 4 mm pipe is included.

Cylinder position sensors are not supplied by FlexLink Systems. Suitable types are Rexroth 322-30 0310 (including cable) or 322-31 0310 (without cable). A mounting bracket 322-30 1000 is also required.

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Pallets – XM 103

Pallets – XM

IntroductionFlexLink conveyor system XM includes pallets in four sizes. The pallet must be equipped either with snap-in slide blocks or rollers. Slide blocks are used in most standard applications. They can be used for inclines up to 3°.

Rollers are used to reduce the queue forces when heavily loaded pallets are accumulated. Pallets with roll-ers cannot be used if plain chain is used in inclines. Transfer to cleated chain is recommended for level changes.

Accurate pallet indexing is ensured by horizontal and vertical V-grooves on two sides of the pallet.

Holes and pockets for screws, nuts and locating pins facilitate quick and flexible attachment of various fixtures. The pallets can be equipped with steel initiator plates for position sensors. The plates can be located in four posi-tions.

The queue length for narrow products can be mini-mized by selecting the shortest pallet XMPP 150×120. The product should be attached crosswise the pallet movement.

Accumulation of pallets in the conveyor bends should be avoided.

MaterialsPallets ............................ Mineral reinforced PPE/PASlide blocks.................... UHMW-PERollers............................ Polyacetal resinShafts for rollers............. Stainless steel

Water absorption can cause pallets to swell in wet appli-cations. This can result in slight changes in pallet dimen-sions and rigidity.

Technical specifications

*The maximum load includes weight of fixture and com-ponent weight.

All pallets are 150 mm wide and 26 mm high with rollers or slide blocks attached.

Friction between pallet and chain:Rollers............................ µ=0,05Slide blocks.................... µ=0,1

Ordering informationNote. Slide blocks or rollers must be used together with the pallets.

Accessories needed for one pallet:

Pallet type Lengthmm

Weightmm

Max. load*kg

XMPP 150×120 120 0,26 5,0

XMPP 150×150 150 0,28 6,0

XMPP 150×200 200 0,32 7,0

XMPP 150×250 250 0,38 8,0

XMPS 100 Slide block 4or 5056002 Shaft/roller kit 1XMPL 13×20 Initiator plate 1 to 4

104 Guide rail system – XM

Guide rail system – XM

Introduction Guide rail bracket

The standard fixed guide rail bracket XLRB 49×42 is designed for use with FlexLink XM-size pallets on the XM conveyor.

The recommended distance between brackets is 0,3 m to 1,5 m. The distance between brackets depends on the side forces to be expected. In buffer conveyors with side forces, a much shorter distance between brack-ets is required than in non-buffering applications.

Pre-bent outer guide rails for bends

Two versions of pre-bent guide rails eliminate the need for precision bending of guide rails at assembly time. The bends are available for use with our 15 mm wide alumin-ium guide rail profile. The bends come in 90° and 180° versions.

Other angles can be made simply by cutting out a middle portion of one of the standard bends, then joining the two parts, with a guide rail bracket supporting the joint.

Inner guide rails

Use standard 15 mm guide rail bent to a suitable shape in the inner bend. See the photograph. The actual shape depends on the pallet type used.

MaterialsThe guide rails and guide rail brackets are made of ano-dized aluminium.

Tools and accessoriesThe guide rails are secured to the guide rail bracket by means of spring pins (XLAP 28). T-bolts and nuts are used to fasten the guide rail bracket to the beam. See handbook section Guide rail components.

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Pallet locating station – XM 105

Pallet locating station – XM

IntroductionThe locating station for conveyor XM is used for locating FlexLink pallets type XMPP 150×.... The pallet is located between a fixed horizontal wedge on one side and a mov-able cross wedge on the other side. The cross wedge is actuated by a pneumatic cylinder.

The pallets are stopped by a pneumatic pallet stop cylinder near the desired position. There, a proximity switch on the locating station frame activates the locating cylinder. In located position the pallets are lifted approxi-mately 0,7 mm above the chain, and moved 0,5 mm off centre, towards the fixed wedge.

T-bolts and nuts are used to secure the locating sta-tion to the conveyor beam. The locating station is equipped with flanges and holes suitable for connection to a common robot support base. The distance from the centre of the conveyor beam to the connecting flanges is the same as for beam support bracket XLCT 21×125 (125 mm).

The pneumatic system will vary depending on special customer requirements. An example is shown in the illus-tration.

MaterialsFrame............................. Cast aluminiumHorizontal wedge ........... SteelCross wedge.................. Hardened steel

Technical specificationsLocating accuracy......................................... 0,1 mmLocating force at 0,6 MPa ............................. 460 NMaximum vertical force incl. pallet weight .... 300 N

Ordering informationT-bolts and nuts for mounting the locating station to the conveyor beam are included. Mounting hardware for con-nection to a support structure must be ordered sepa-rately.

The proximity sensors (∅ 12 mm, not supplied by FlexLink Systems) must have a minimum effective sens-ing distance of 2,5 mm to the initiating surface (alumin-ium).

Example: the effective sensing distance for SICK (IM12 sensing range 8 mm) is 5,18 mm. This is calculated as follows: 8 mm × 0,81* × 0,45** = 2,92 mm. (*Useful sens-ing range = 0,81 × nominal sensing range, **Reduction factor for aluminium.)

0,6 MPa

106 Pallet stop cylinder – XM

Pallet stop cylinder – XM

IntroductionThe pneumatic stop cylinder for conveyor system XM is used to stop pallets at locating stations, or as queue-stop before the stations. Where less accuracy is needed, the cylinder can be used for locating purposes.

The pallet stop consists of a cylinder housing with a plunger. The plunger is operated by a pneumatic cylinder mounted on the cylinder housing.

The plunger is designed to resist pushing forces, but it is not recommended to use the cylinder for pulling. To prevent swivelling, the plunger is designed with a square cross-section.

The pneumatic cylinder is double-actuated. It has pro-vision for a cylinder position sensor.

MaterialsHousing, cover ......................... Anodized aluminiumPlunger..................................... Polyamide with steel topBracket for proximity switch...... Anodized aluminium

Technical specificationsConnection............................... ∅ 6 mmStroke....................................... 10 mmTheoretical force at 0,6 MPa .... 130 N – minus directionMax. kinetic energy .................. See diagram

The diagram shows maximum pallet load as a function of the conveyor speed.

Ordering informationPneumatic connectors and the necessary mounting hardware are included.

Position sensors are not supplied by FlexLink Sys-tems. Suitable types are SICK IM12-08NPS-ZC1.

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Pallet transfer station – XM 107

Pallet transfer station – XM

IntroductionThe transfer station is used for transferring FlexLink XM pallets from one conveyor to another in the XM conveyor system.

The pallets are stopped by two stop cylinders, one integrated with the transfer station and one attached to the beam. At this point, a proximity switch enables the transfer station to lift the pallets 1–2 mm and to start the cogged transfer belt. A proximity switch on the receiving conveyor acknowledges successful pallet transfer. This stops the transfer belt and the belt drive system returns to its low position.

The integrated pallet stop can be easily moved to either side, for transfer in either direction. An additional stop is required for reversible operation.

The pneumatic system will vary depending on the application. An example is shown in the figure below.

General recommendations• To prevent the pallet from turning on the outlet con-

veyor, the conveyor speed should not exceed15 m/min.

• The inner guide rail should be bent slightly for smooth transfer from the cog belt to the outlet conveyor. See page 108.

• The centre of gravity of the product on the pallet may be a maximum of 10 mm off the pallet centre, and a maximum of 50 mm above the pallet surface.

• When ordering proximity switches, specify 4 mm acti-vating distance.

Materials Frame............................. Cast aluminiumCog belt ......................... RubberRoller assy. profiles........ Anodized aluminiumRollers............................ Acetal resin

Technical specificationsCog belt type.................. 187 L 100Belt speed...................... 110 mm/s (6,6 m/min)Motor.............................. Geared motor, 3-phase, 400 V,

25 W, 60 r/min

Ordering informationThe same type of transfer station can be used for pallet lengths 150 mm, 200 mm, and 250 mm, by mounting the roller assemblies in the appropriate positions.

T-bolts and nuts to secure the locating station to the conveyor beam are included.

External pallet stops XMPD 20×10 EA must be ordered separately.

For reversible operation, order an additional inte-grated stop, Part No. 3904959.

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108 Examples

Examples

Example 1. One-way transfer

Example 2. Reversible transfer

Note that an additional integrated stop device is required for reversible operation. Order No. 3904959

Pallet stop queue Proximity switch Pallet stop

Integrated pallet stop

Bent guide rail for smooth transfer

Integrated pallet stops

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Pallets – XK 109

Pallets – XK

IntroductionFlexLink conveyor system XK includes pallets in three sizes. A pallet consists of a cast pallet base and two plas-tic guide discs, reinforced with hardened steel slide plates at the bottom. The customer attaches a product-specific fixture to the pallet base.

Two hardened bushings at the bottom of the pallet base provide good locating accuracy at the locating sta-tion. Two guide holes in the pallet base ensure high accu-racy for the product fixture in relation to the bushings.

An initiator plate for position sensors is integrated in each guide disc. The pallets are delivered with shock absorbers.

Accumulation of pallets in conveyor bends is possible. Note, however, that pallet type XKPP 300×300 cannot be accumulated through 180° bends.

XK pallets can be used for inclines up to 3°.

Chain

The pallet system is designed for use with plain chain type XKTP 5 A. Standard chain XKTP 5 or steel top chain must not be used.

Pallet loadingThe centre of gravity of the product on the pallet (includ-ing fixture) must be located inside a 40 mm × 140 mm rectangle on the pallet. See figure.

MaterialsPallet plate ..................... Cast aluminiumSlide plate/initiator ......... Hardened stainless steelGuide disc...................... Acetal resin POMShock absorber.............. TPU (thermoplastic poly-

urethane)

Technical specifications

*The maximum load includes weight of product fixture, and product weight.

Friction between pallet (slide plates) and chain

Slide plates .................... µ=0,15–0,35

Ordering informationThe pallets are delivered as assembled units, complete with guide discs, slide plates, and shock absorbers.

For other pallet sizes, please contact your FlexLink Systems representative.

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Pallet XKPP 200×150 1,4 30

Pallet XKPP 250×225 1,8 30

Pallet XKPP 300×300 2,3 30

Guide disc XKPG 105 0,23 –

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Guide rail system – XK

IntroductionThe guide rail system for XK pallets is significantly differ-ent from the normal FlexLink conveyor guide rail system. The system includes:

• Straight guide rails

• Guide rails for bends

• Straight guide rails with drip catchers

• Drip catchers for bends

• Guide rail brackets

Plastic slide rails are snapped onto the guide rails to pro-vide a low-friction side support, permitting accumulation in bends. Slide rails are available in three plastic materi-als, UHMW-PE, PVDF, and PA-PE.

The guide rails also provide tilt support for occasions when the balance is disturbed.

The system design permits pallet stops and proximity switches to be located anywhere along the straight sec-tion of the conveyor. Such accessories are attached to the guide rail T-slots using XCAN nuts.

Pre-bent guide rails

The pre-bent guide rails eliminate the need for precision bending of guide rails at assembly time. The bends are available for use with the standard 42 mm wide guide rail, and come in 30°, 45°, 90°, and 180° versions.

If guide rails with drip catchers are used on straight sections, ABS plastic drip catchers are used in bends together with pre-bent guide rails. The drip catchers are designed for product widths up to 300 mm.

Guide rail bracket

Fixed guide rail bracket XKRB 30×74 is designed for use with XK pallets and plain chain XKTP 5 A. The recom-mended distance between guide rail brackets is 0,6 m.

MaterialsGuide rails................................ Anodized aluminiumGuide rail bracket ..................... Anodized aluminiumDrip catchers for bends............ ABS plastic

Tools and accessoriesT-bolts and nuts are used to fasten the guide rail bracket to the beam and to fasten the guide rail to the guide rail bracket. Suitable screw types: M6S 8×16 or XLAT 24. See Guide rail components for details. Screw set 4A (3924731) and set screws (SK6SS 4×20) are used for joints between straight guide rails.

Important

Use of mounting toolkit 3926757 is essential to ensure that the guide rails are attached with a correct and con-sistent spacing. The kit consists of two plastic guides.

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Pallet locating station – XK 111

Pallet locating station – XK

IntroductionThe pallet locating station for conveyor system XK is used for locating of all FlexLink pallets type XKPP.

The pallets are stopped by a pneumatically controlled stop device near the desired position. A proximity switch (not included) is used to indicate that a pallet is in the locating station. Here, two rulers lift the pallets approxi-mately 1,5 mm above the chain. The two locating guide pins ensure a high locating accuracy (±0,1 mm).

The stop device (XKPD 32×15 LA) and the proximity switch are movable and their location depends on the size of pallet used. Two holes are prepared in the locating station for additional proximity switches, to indicate lifting of the pallet. See figure 2. Standard position sensors for cylinders can also be used.

Pallet stop XKPD 32×15 LA comes with a protective cover for the stop lever. See figure 1. The cover dimen-sions are for use with the largest pallet. It can easily be cut for use with the other standard pallet sizes. The cover is fastened to the T-slot of the guide rail.

Important

To ensure that the locating station is not affected by pos-sible movements of the conveyor beam, it should be installed on a separate support which is not rigidly con-nected to the conveyor beam. The beam is locked verti-cally to the locating station by means of guide pins in the T-slot, but it is slightly movable sideways and alongside, without affecting the locating station.

MaterialsFrame............................. Cast aluminiumRulers............................. Hardened steelGuide pins...................... Hardened steelBracket for proximity switch

∅ 12 mm .................... Anodized aluminium∅ 18 mm .................... Acetal resin

Caution

Pallets must not be subjected to excessive side forces when located, or the hardened guide pins will break.

Technical specificationsLocating accuracy.................... ±0,1 mmMaximum vertical force/ruler at 0,6 MPa ................................... 600 N including pallet

weight (see figure)

Protective cover for stop lever

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∅ 12 holes for proximity switches

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Pallet locating station – XK (continued)Ordering informationSpecify the locating station with guide rails with or with-out drip catcher.

Proximity sensors are not supplied by FlexLink Systems. To indicate “pallet ready to lift”, a SICK proximity switch (IQ 10 series, sensing range 6 mm) or similar can be used. See figure 3. The proximity sensors (∅ 12 mm or ∅ 18 mm) must have a minimum effective sensing dis-tance of 3,5 mm to the steel initiator plate.

The pneumatic control system must include damping valves for the lifting and lowering movements. The Festo standard proximity switches can be used to indicate the elevated/lowered positions.

Bracket for proximity switch

XKPB 18 H with proximity switch

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Pallet stop device – XK 113

Pallet stop device – XK

IntroductionThe pneumatic stop device for conveyor system XK is used where pallets must be temporarily stopped. Where maximum locating accuracy is not needed, it can also be used for locating purposes.

The stop consists of an arm operated by a pneumatic cylinder. The unit is rigidly connected to the conveyor beam by means of two XCAN 8 nuts. It can be secured at any suitable location along the straight sections of the conveyor.

The pneumatic cylinder is double-actuated. It has pro-vision for a cylinder position sensor.

All proximity switches will be mounted horizontally underneath the guide rail, which means reduced risk for damage and minimum dirt collection.

Note

The stop device is always mounted on the right-hand side of the conveyor. The stop arm clears the leading pal-let guide disc and engages the trailing disc only. This results in a single, well defined stop position for each pal-let, obtained with a simplified control system.

MaterialsHousing.......................... Anodized aluminiumCover.............................. Stainless steelBracket for proximity switch

∅ 12 mm .................... Anodized aluminium∅ 18 mm .................... Acetal resin

Technical specificationsConnection............................... G 1/8"Stroke ...................................... 15 mmLocating accuracy.................... 1 mmMaximum kinetic energy .......... See diagram

The diagram shows the maximum permissible weight of a group of pallets (product weight + pallet weight) that the stop device is capable of stopping, as a function of the conveyor speed.

Ordering informationPneumatic cylinders and the necessary mounting hard-ware are included with the stop devices.

Position sensors are not supplied by FlexLink Sys-tems. The proximity sensors (∅ 12 mm or ∅ 18 mm) must have a minimum effective sensing distance of 3,5 mm to the steel initiator plate.

Suitable types are SICK IM12-04BPS-ZC1 for ∅ 12 and SICK IM18-12NPS-ZC1 for ∅ 18.

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114 Pallet divert/merge devices – XK

Pallet divert/merge devices – XK

Divert/merge devicesDivert/merge devices are used for dividing or combining flows of products. Usually there is a main conveyor, a “highway”, and separate subordinated conveyors, “satel-lites”. On the satellites, products can be subjected to var-ious operations such as turning, grinding or testing, without disturbing the main flow. After the operations, the products can return to the main conveyor.

A combination of a highway and one or more satellites is often called a cell. Using divert/merge devices, it is possible to build cell junctions which facilitate transfer of a pallet from one cell to another. See figure.

Product rangeThe FlexLink XK pallet handling system includes compo-nents for building devices for divert or merge operations, and combined divert/merge devices. The devices are connected to standard XK conveyors with wheel bends.

Two guide rail widths can be ordered, either the stand-ard width (42 mm) or the wide rails with drip catchers (101 mm). Drip pans for use in combination with the wide guide rails are also available.

Diverters

Diverters for guiding the flow of products off the highway into a satellite are available in eight types: 45° left/right and 90° left/right, each with either 42 mm or 101 mm guide rail. The diverter includes a pneumatically control-led wiper arm.

Merge devices

Merge devices for guiding products from a satellite back to the highway are available in eight versions: 45° left/right and 90° left/right, each with either 42 mm or 101 mm guide rail.

Combined divert/merge device

Devices which permit products to be guided into a satel-lite, or be returned back to the highway, or circulate on the satellite, are called Divert/merge combinations. They are available in eight versions: 45° left/right and 90° left/right, each with either 42 mm or 101 mm guide rail. The diverter part includes a pneumatically controlled wiper arm.

Technical specificationsMaximum speed........................................... 20 m/minMaximum pallet weight ................................ 30 kg

Cell

HighwayCell junction

Satellite

DL DLDR DR

45° 90°45° 90°

ML MLMR MR

45° 90°45° 90°

CL CLCR CR

45° 90°45° 90°

INTRO

EG-C

EG-W

EG-A

EG-S

APPL

CONV

PAL

GR

CS

C-SX

C-SY

EM

XT

XC-XF

FST

Pallet divert/merge devices – XK 115

Pallet divert/merge devices – XK (continued)

Drip catchers and drip pansThe divert/merge devices with 101 mm guide rail can be equipped with drip pans. The drip pans are designed to collect fluids from the divert/merge area including nearby drive units or idler end units. Drip pan kits for diverters and merge devices include two drip pans: one for the wheel bend and one for the drive unit or idler end unit. See Figure 1. Standard XK drip trays should be mounted slanting away from the drip pans, and be equipped with end caps XKDC 147 A at the end facing the drip pans belonging to the divert/merge devices.

Dimension limits

The conveyors must be built in accordance with the dimensional limitations specified in Figures 2–3. If drip pans are used, there is a minimum distance between adjacent wheel bends. Figure 2 applies to diverters and merge devices with drip pans. Figure 3 applies to com-bined divert/merge devices with drip pans.

Assembly guidelinesThe divert/merge device kits come complete with the necessary assembly components such as guide rail brackets, screws, nuts and washers, etc. Detailed assembly instructions are also included.

Connecting conveyors

Diverters and merge devices are built on 45° or 90° wheel bends connected to the main conveyor by means of a screw through a piece of XKCB conveyor beam (length 175 mm, included with the divert/merge device kit). See Figures 4–5.

The combined divert/merge devices are built on 90° or 180° wheel bends. In this case the bends are connected to the main conveyor by means of an XCFJ 44 F stay bracket (included with the kit). See Figure 6.

1

>1040

2

>515

3

175

∅ 9

4

5

6

116 Pallet diverter kits – XK

Pallet diverter kits – XK

IntroductionDiverters are used to guide selected pallets from one conveyor to another. The two conveyors are built as sep-arate XK conveyors which are placed close to each other. This means that it is easy to add another diverter to an existing conveyor.

At the diverter, the conveyors are connected using a short piece of conveyor beam, a screw-washer combina-tion, and a spacer plate. See page 115.

The diverter arm is moved by a double-actuated pneumatic cylinder. The pneumatic control system should include damping valves. See the pneumatic dia-gram (Figure 1).

Important

It is important to use the guide rail assembly tool (part #3926757) to achieve the dimensional precision required.

Drip pansEach diverter type with 101 mm guide rails can be equipped with a drip pan kit. The kit consists of two drip pans and the necessary mounting hardware. See page 115 for additional information.

MaterialsGuide rails, guide rail brackets........... Aluminium,

anodizedDiverter arm, side guides................... Acetal resinDrip pans ........................................... ABS plastic

Ordering informationA diverter kit (Figure 2) contains:

• Connection components to interconnect the convey-ors.

• Diverter arm assembly, including pneumatic cylinder and attachment components.

• Preassembled guide rails (42 mm or 101 mm) for guidance of the pallets in the diverter area.

• Mounting hardware.

• Detailed assembly instructions.

The diverter kits are delivered complete with pneumatic pipe connections and mounting bracket type Festo WSR-16-J for inductive transducers with M8 threads.

0,6 MPa

1

2 XKPJ 90 DL A

INTRO

EG-C

EG-W

EG-A

EG-S

APPL

CONV

PAL

GR

CS

C-SX

C-SY

EM

XT

XC-XF

FST

Pallet merge kits – XK 117

Pallet merge kits – XK

IntroductionMerge devices are used to guide pallets back from a sat-ellite conveyor into the main conveyor (highway). The two conveyors are built as separate XK conveyors which are placed close to each other. This means that it is easy to add another merge device to an existing conveyor.

At the merge device, the conveyors are connected using a short piece of conveyor beam, a screw-washer combination, and a spacer plate. See page 115.

Important

It is important to use the guide rail assembly tool (part #3926757) to achieve the dimensional precision required.

Drip pansEach merge device type with 101 mm guide rails can be equipped with a drip pan. The kit consists of two drip pans and the necessary mounting hardware. See page 115 for additional information.

Note

The drip pan kit cannot be used in combination with XK drive units type H.

MaterialsGuide rails, guide rail brackets........... Aluminium,

anodizedSide guides........................................ Acetal resinDrip pans ........................................... ABS plastic

Ordering informationA pallet merge kit (Figure 1) contains:

• Connection components to interconnect the convey-ors.

• Preassembled guide rails (42 mm or 101 mm) for guidance of the pallets in the merge area.

• Mounting hardware.

• Detailed assembly instructions.

XKPJ 45 MR A1

118 Combined pallet divert/merge kits – XK

Combined pallet divert/merge kits – XK

IntroductionA combined divert/merge device is used to guide selected pallets from a main conveyor (highway) into a satellite conveyor and back. The combination also per-mits recirculating the pallets on the satellite until the pal-let is ready to return to the highway.

The two conveyors are built as separate XK convey-ors which are placed close to each other. This means that it is easy to add another divert/merge device to an existing conveyor.

At the combined divert/merge device, the conveyors are connected using an XCFJ 44 F stay bracket. See page 115.

The diverter arm is moved by a double-actuated pneumatic cylinder. The pneumatic control system should include damping valves. See the pneumatic dia-gram (Figure 1).

Important

It is important to use the guide rail assembly tool (part #3926757) to achieve the dimensional precision required.

Drip pansEach combined divert/merge device with 101 mm guide rails can be equipped with a drip pan. The kit consists of one drip pan and the necessary mounting hardware. See page 115 for additional information.

MaterialsGuide rails, guide rail brackets........... Aluminium,

anodizedDiverter arm, side guides................... Acetal resinDrip pans ........................................... ABS plastic

Ordering informationA combined divert/merge device kit (Figure 2) contains:

• Stay bracket to interconnect the conveyors.

• Diverter arm assembly, including pneumatic cylinder and attachment components.

• Preassembled guide rails (42 mm or 101 mm) for guidance of the pallets in the diverter area.

• Mounting hardware.

• Detailed assembly instructions.

The combined divert/merge device kits are delivered complete with pneumatic pipe connections and mounting bracket type Festo WSR-16-J for inductive transducers with M8 threads.

0,6 MPa

1

XKPJ 45 CR A2