GB1601705A - Apparatus for dispensing lids - Google Patents

Apparatus for dispensing lids Download PDF

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Publication number
GB1601705A
GB1601705A GB4442877A GB4442877A GB1601705A GB 1601705 A GB1601705 A GB 1601705A GB 4442877 A GB4442877 A GB 4442877A GB 4442877 A GB4442877 A GB 4442877A GB 1601705 A GB1601705 A GB 1601705A
Authority
GB
United Kingdom
Prior art keywords
slide
lid
stack
separation
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4442877A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging UK Ltd
Original Assignee
Metal Box PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metal Box PLC filed Critical Metal Box PLC
Priority to GB4442877A priority Critical patent/GB1601705A/en
Priority to JP10953378A priority patent/JPS5465162A/en
Priority to IN1023/CAL/78A priority patent/IN149744B/en
Publication of GB1601705A publication Critical patent/GB1601705A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/10—De-stacking nested articles
    • B65G59/105—De-stacking nested articles by means of reciprocating escapement-like mechanisms

Landscapes

  • De-Stacking Of Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Description

(54) APPARATUS FOR DISPENSING LIDS (71) We, METAL Box LIMITED, of Queens House, Forbury Road, Reading RGl 3JH, Berkshire, a British Company, do hereby declare the invention for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to apparatus for applying a lid to a can, and more particularly but not exclusively to apparatus for separating a lid from the bottom of a stack of like lids.
In one known apparatus for removing a lever lid from a stack of lever lids, the flange of each lid is engaged with the threads of a plurality of rotating guide members. The thread of each guide member increases in pitch towards the delivery end so that as the guides rotate each lid reaches the delivery end to be drawn away from the stack and fall freely on to a container in readiness for lidding. Apparatus using these threaded guide members is costly to manufacture because of the cost of machining the guide members and costly to maintain because of the significant number of moving parts.
In another known apparatus the stack of lids moves under gravity to a pair of separating devices mounted one on each side of the stack. Each device has a support slide and a separator slide. The support slide is below the separator slide and supports the stack of lids while the separator slide is inserted between the flange of the bottom lid and the flange of the next lid above. The support slide of both devices is then withdrawn to allow the bottom lid to fall away from the stack, while the separator slide holds the stack up. The support slides are then brought forward to the stack supporting position to receive the weight of the stack as the separator slide is retracted. If however, the bottom lid has failed to fall away, because it is jammed on the next lide above, no lid will be delivered and so several cans of goods may fail to receive a lid.This known apparatus is operated by pegs, attached to each slide, which co-operate with cam slots in a plate. The plate is reciprocated to move the slots and so move the pegs, and slides, in the desired timed relationship. It lacks any means to automatically separate a jammed lid.
In a first aspect this invention provides apparatus for removing a lid from the bottom of an upright stack of like lids; said apparatus including an operation slide, a separation slide one end of which is engageable with the stack, and a support slide one end of which is engageable with the stack; said slides being mounted in generally parallel relationship each above the next for reciprocating motion; said separation slide having at least one lever pivotally mounted thereon so that one end of the lever extends into the path of reciprocation of the operation slide and the other end extends into the path of reciprocation of the support slide; wherein movement of the operation slide towards the stack first causes said one end of the separation slide to enter between the bottom lid of the stack and the next lid above and thereafter causes the lever to pivot so that said other end of the lever engages the support slide to cause the said one end of the support slide to retract leaving the bottom lid free to fall away from the stack.
In one embodiment the separation slide has means to push an unsupported lid from the stack, one such means being a wedge profile fast with the separation slide.
In a preferred embodiment the separation slide is provided with a separator flicker, such that movement of the operation slide relative to the separation slide causes the flicker to pivot in relation to the tip of the separator slide and impart a force on to the lid, so encouraging its removal from the stack.
In a second aspect the invention provides apparatus for applying a lid to a container said apparatus including apparatus in the first aspect. The apparatus in the first aspect may be positioned diametrically opposite with respect to the lids in the stack an identical second apparatus or alternatively the second apparatus may be replaced by a fixed peg.
In a preferred embodiment the lidding apparatus has a means to support a stack of lids, having at the bottom of said means a peg and apparatus according to the first aspect.
One embodiment will now be described, by way of example and with reference to the accompanying drawings in which: Fig. 1 is a diagrammatic sketch of apparatus for delivering a lid to a container; Fig. 2 is a plan view of the slide unit of Fig. 1 with the cover plate removed; Fig. 3 is a side view of the slide unit of Fig. 1 sectioned on the line A-A' in Fig 2; Fig. 4 is an end elevation of the slide unit with the flicker depressed; Fig. 5 is a side view of the slide unit, with a side plate and separation slide cut away to show the lever actions in the stack support position: Figs. 6 to 8 are like views to Fig. 5, to show the sequence of slide and lever movements to separate a lid from the bottom of the stack; and Fig. 9 is a view of the under side of the slide unit with the bottom plates removed.
In Fig. 1, a stack 1 of lever lids 2 is held at a slight angle to the vertical by guide rods 3. Each lid has a plug portion 4 and a flange 5 best seen on the lid 2A at the bottom of the stack. In Fig. 1, the stack is supported by a peg 6 and a nose portion 7 of a scparation slide 12 which engages with the under side of the flange of the lid 2B. The lid 2A should fall freely away from the lid 2B; if however the plug portion of the lid 2B is jammed in the lid 2A some means is required to separate them so that the lid 2A will fall on to the can 8 travelling, as arrowed, on the conveyor 9 below. The slide unit 10 provides a means for separating the lid 2A from the 2B, so permitting the lid to pass into the chute C which delivers each lid to the correctly positioned can 8. The chute is described in our co-pending British Patent Application No. 12556/74 (Serial No. 1508124).
In Figs. 2, 3, 4 and 9 the slide unit 10 is shown to have an operation slide 11 which is moved to reciprocate within the upper slideway 18 of the unit 10 by a pneumatic cylinder P or other means. The operation slide 11 lies in sliding engagement with a separation slide 12 beneath it. There is a blind bore 39 in the separation slide 12 which confines one end of a spring 14.
The other end of the spring 14 is engaged in an end block portion 40 of the operation slide 11, so that the separation slide is in resiliently loaded connection with the operation slide.
A separation slide pin 13 extends upwards from the separation slide 12, through a slot 15 in the operation slide 11, into a restrictor slot 16 in the cover 17 of the slideway 18.
The separation slide 12 has a slot 19 (best seen in Fig. 2) in which is located a separator flicker 20, which is pivotable about a pivot pin 21. The wedge profile of the separator flicker 20, as shown in Fig. 3, coincides with the profile of the two portions 12A, 12B of the separation slide each side of it, as shown in Fig. 2.
In the slide position shown in Fig. 2, the separation flicker is held against the angled back of the slot 19 by an operation slide pin 22 which engages with the retaining face 23 of the flicker.
A lid support slide 25 lies in a lower slideway 24 which extends substantially parallel to the upper slideway 18. The support slide 25 has a first support portion 26, at the left hand end as shown in Fig. 3, which supports the curl of the lid 2A. The support portion 26 has a stop face 28A of a height chosen to permit the separator slide to slide over the curl of the lid 2A.
The support slide 25 has a second support portion 27, at the right hand end as shown in Fig. 3; the portion 27 has a stop face 28B of a height different from that of stop face 28A. The different heights of stop faces 28A and 28B are chosen with regard to the thickness of the lid curls to be handled. Therefore the support slide 25 is reversible in the slideway 24 to allow the apparatus to be used to deliver lids having two different curl thicknesses (denoted "d" in Fig. 3).
The stop face 18B of the support slide 25 is resiliently loaded against the bottom plate 41 of the slide unit 10, by means of a plunger 29 acting against a spring 30 in a closed housing 31, depicted in section in Fig. 9.
The sides of the support slide 25 have recesses in each of which is located a slide pin 32 which extend outwardly. Each slide pin 32 is equidistant from the stop faces 28A and 28B.
A slide lever 33 extends upwards from each support slide recess where it engages with the slide pin 32, through a side recess in the separation slide 12, to terminate in the path of reciprocation of the operation slide 11. Each lever is pivoted on pins 35, 36 located in the sides 34 of the slide unit 10.
In Fig. 4, the apparatus of Figs. 2 and 3 is shown at a later time when the separator flicker 20 is depressed. The slide levers 33 are therefore only just visible because the operation slide 11 has advanced to depress them while the operation slide pin 22 has tilted the separator flicker 20.
The operation of the apparatus of Figs.
2 3 and 4 will now be described with reference to Figs. 5 to 8 in which the fork 12B of the separation slide 12 has been cut away, to show clearly the arrangement of the side lever 33 in relation to the operation slide 11, separator flicker 20 and support slide 25.
In Fig. 5 the lid support slide 25 is in its extended position and supports a stack of lids such as that denoted 2A. The separation slide 12 is in its retracted position.
The separation slide spring 14 and the support slide spring 30 are in their least com- pressed condition.
In Fig. 6 the operation slide 11 has been moved forward, by the pneumatic cylinder P, to take the separation slide 12 with it under the resilient influence of the spring 14. The movement of the separation slide is continued until the separation slide pin 13 reaches the end of the restrictor slot 16 in the cover plate 17, at which time the wedge shaped end of the separator slide will be in its extended position to separate the curl of the bottom lid 2A from the curl of the lid above.
In Fig. 7 it will be understood that separation slide 12 cannot move any further forward because the slide pin 13 is engaged with the end of the restrictor slot 16; however the operation slide 11 can continue its forward motion against the spring 14, because the slot 15 in the operation slide 11 permits this. In so doing the sides of operation slide 12 impinge on the anvil portions 37 of the slide levers 33 to push the anvil portions 37 forward and in so doing pivot the levers 33 on their pins 35, 36 so that the lower end of each lever pushes on the respective support slide pin 22 to cause the support slide 25 to retract against its plunger 29 to compress the spring 30.
The lid 2A, in Fig. 7, should be free to fall away from the stack, while the weight of the stack is held up by the separator slide 12. However, the lid 2A may be jammed on to the plug portion of the lid above.
In Fig. 7 the operation slide 11 has moved further forward over the slide lever anvils 37 to lock the lid support slide in its retracted position. In so doing the operation slide pin 22 moves across the retaining face 13 of the flicker 20 to a point directly above the flicker pivot pin 21 where it contacts the flicker anvil 38.
The further forward motion of the operation slide 11 is depicted in Fig. 8 in which the forward motion of the operation slide pin has caused the flicker 10 to pivot about its pivot pin 21. The flicker 10 is able to pivot because the operation slide pin 22 is forward of the pivot centre.
In so pivoting the flicker imparts a down ward force on the curl of the lid 2A to separate it forcefully from the stack. In Fig. 8 the springs 14 and 30 are com pressed and spring 30 will therefore urge the support slide 25, the slide levers 33, separator slide 12 to retract and the spring 14 will be urged, by the separator slide to resiliently retract the operation slide. How ever the retraction is preferably positively caused by a powered return stroke of the pneumatic cylinder unit P.
As the operation slide 11 starts to retract, the slide pin 22 acting on the retaining face 23 returns the flicker 20 to its coincident position within the separation slide 12 (see Fig. 7). Further backward movement of the operation slide takes the operation slide pin 22 back over the lever anvils 37 until the spring 30 is able to cause the plunger 29 to push the lid support slide 25 to its forward position. When the support slide 25 has arrived at this support position the separation slide pin 13 is at the end of the slot 15 so that further backward movement of the operation slide withdraws the separation slide 12 with it and the weight of the stack of lids falls on the lid suport slide, as shown in Fig. 5.
Whilst the invention has been described in terms of apparatus having levers to each side of the slides it will be understood that various alternative embodiments may be used to link the movement of a first slide to the second slide by means of a lever. The use of fixed pivot linkages to connect the levers to the slide and flicker may also be used. Therefore the invention is not restricted to the specific embodiment described with reference to the accompanying drawings.
WHAT WE CLAIM IS: 1. Apparatus for removing a lid from the bottom of an upright stack of like lids; said apparatus including an operation slide, a separation slide one end of which is engageable with the stack, and a support slide one end of which is engageable with the stack; said slides being mounted in generally parallel relationship each above the next for reciprocating motion; said separation slide having at least one lever pivotally mounted thereon so that one end of the lever extends into the path of reciprocation of the operation slide and the other end extends into the path of reciprocation of the support slide; wherein movement of the operation slide towards the stack first causes said one end of the separation slide to enter between the bottom lid of the stack and the next lid above and thereafter causes the lever to pivot so that said other end of the lever engages the support slide to cause the said one end of the support slide to retract leaving the bottom lid free to fall away
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (10)

  1. **WARNING** start of CLMS field may overlap end of DESC **.
    2 3 and 4 will now be described with reference to Figs. 5 to 8 in which the fork 12B of the separation slide 12 has been cut away, to show clearly the arrangement of the side lever 33 in relation to the operation slide 11, separator flicker 20 and support slide 25.
    In Fig. 5 the lid support slide 25 is in its extended position and supports a stack of lids such as that denoted 2A. The separation slide 12 is in its retracted position.
    The separation slide spring 14 and the support slide spring 30 are in their least com- pressed condition.
    In Fig. 6 the operation slide 11 has been moved forward, by the pneumatic cylinder P, to take the separation slide 12 with it under the resilient influence of the spring 14. The movement of the separation slide is continued until the separation slide pin 13 reaches the end of the restrictor slot 16 in the cover plate 17, at which time the wedge shaped end of the separator slide will be in its extended position to separate the curl of the bottom lid 2A from the curl of the lid above.
    In Fig. 7 it will be understood that separation slide 12 cannot move any further forward because the slide pin 13 is engaged with the end of the restrictor slot 16; however the operation slide 11 can continue its forward motion against the spring 14, because the slot 15 in the operation slide 11 permits this. In so doing the sides of operation slide 12 impinge on the anvil portions 37 of the slide levers 33 to push the anvil portions 37 forward and in so doing pivot the levers 33 on their pins 35, 36 so that the lower end of each lever pushes on the respective support slide pin 22 to cause the support slide 25 to retract against its plunger 29 to compress the spring 30.
    The lid 2A, in Fig. 7, should be free to fall away from the stack, while the weight of the stack is held up by the separator slide 12. However, the lid 2A may be jammed on to the plug portion of the lid above.
    In Fig. 7 the operation slide 11 has moved further forward over the slide lever anvils 37 to lock the lid support slide in its retracted position. In so doing the operation slide pin 22 moves across the retaining face 13 of the flicker 20 to a point directly above the flicker pivot pin 21 where it contacts the flicker anvil 38.
    The further forward motion of the operation slide 11 is depicted in Fig. 8 in which the forward motion of the operation slide pin has caused the flicker 10 to pivot about its pivot pin 21. The flicker 10 is able to pivot because the operation slide pin 22 is forward of the pivot centre.
    In so pivoting the flicker imparts a down ward force on the curl of the lid 2A to separate it forcefully from the stack. In Fig. 8 the springs 14 and 30 are com pressed and spring 30 will therefore urge the support slide 25, the slide levers 33, separator slide 12 to retract and the spring
    14 will be urged, by the separator slide to resiliently retract the operation slide. How ever the retraction is preferably positively caused by a powered return stroke of the pneumatic cylinder unit P.
    As the operation slide 11 starts to retract, the slide pin 22 acting on the retaining face 23 returns the flicker 20 to its coincident position within the separation slide
    12 (see Fig. 7). Further backward movement of the operation slide takes the operation slide pin 22 back over the lever anvils 37 until the spring 30 is able to cause the plunger 29 to push the lid support slide 25 to its forward position. When the support slide 25 has arrived at this support position the separation slide pin 13 is at the end of the slot 15 so that further backward movement of the operation slide withdraws the separation slide 12 with it and the weight of the stack of lids falls on the lid suport slide, as shown in Fig. 5.
    Whilst the invention has been described in terms of apparatus having levers to each side of the slides it will be understood that various alternative embodiments may be used to link the movement of a first slide to the second slide by means of a lever. The use of fixed pivot linkages to connect the levers to the slide and flicker may also be used. Therefore the invention is not restricted to the specific embodiment described with reference to the accompanying drawings.
    WHAT WE CLAIM IS: 1. Apparatus for removing a lid from the bottom of an upright stack of like lids; said apparatus including an operation slide, a separation slide one end of which is engageable with the stack, and a support slide one end of which is engageable with the stack; said slides being mounted in generally parallel relationship each above the next for reciprocating motion; said separation slide having at least one lever pivotally mounted thereon so that one end of the lever extends into the path of reciprocation of the operation slide and the other end extends into the path of reciprocation of the support slide; wherein movement of the operation slide towards the stack first causes said one end of the separation slide to enter between the bottom lid of the stack and the next lid above and thereafter causes the lever to pivot so that said other end of the lever engages the support slide to cause the said one end of the support slide to retract leaving the bottom lid free to fall away
    from the stack.
  2. 2. Apparatus according to Claim 1 wherein a first spring urges the support slide to return to the forward position and the or each lever into engagement with the operation slide.
  3. 3. Apparatus according to Claim 1 or Claim 2 wherein the operation slide is connected to the separation slide by a compression spring so that when the separation slide is arrested in the forward position the operation slide may continue its motion in a forward direction to act upon the or each lever to retract the support slide.
  4. 4. Apparatus according to any preceding Claim wherein the separation slide has means to push an unsupported lid from the stack, one such means being a wedge profile fast with the separation slide.
  5. 5. Apparatus according to any of Claims 1 to 3 wherein the separation slide is provided with a separator flicker, such that movement of the operation slide relative to the separation slide causes the flicker to pivot in relation to the tip of the separator slide and impart a force on to the lid, so encouraging its removal from the stack.
  6. 6. Apparatus for applying a lid to a container, said apparatus including apparatus according to any preceding Claim.
  7. 7. Apparatus according to any Claims 1 to 5 when positioned diametrically opposite with respect to the lids in the stack an identical second apparatus, in apparatus for applying a lid as defined in Claim 6.
  8. 8. Apparatus for applying a lid to a can, having means to support a stack of lids, in the form of a peg and apparatus according to any of Claims 1 to 5.
  9. 9. Apparatus, for removing a lid from the bottom of a stack of lids, substantially as hereinbefore described with reference to Figs. 2 to 9 of the accompanying drawings.
  10. 10. Apparatus for applying a lid to a container substantially as hereinbefore described with reference to the accompanying drawings.
GB4442877A 1977-10-25 1977-10-25 Apparatus for dispensing lids Expired GB1601705A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4442877A GB1601705A (en) 1977-10-25 1977-10-25 Apparatus for dispensing lids
JP10953378A JPS5465162A (en) 1977-10-25 1978-09-06 Apparatus for attaching cover to can
IN1023/CAL/78A IN149744B (en) 1977-10-25 1978-09-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4442877A GB1601705A (en) 1977-10-25 1977-10-25 Apparatus for dispensing lids

Publications (1)

Publication Number Publication Date
GB1601705A true GB1601705A (en) 1981-11-04

Family

ID=10433255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4442877A Expired GB1601705A (en) 1977-10-25 1977-10-25 Apparatus for dispensing lids

Country Status (3)

Country Link
JP (1) JPS5465162A (en)
GB (1) GB1601705A (en)
IN (1) IN149744B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771149A (en) * 2012-10-22 2014-05-07 北京强度环境研究所 Cover separating mechanism
CN106256725A (en) * 2016-07-18 2016-12-28 浙江陆虎汽车有限公司 A kind of automatic blanking conveyer device
CN109250515A (en) * 2018-10-24 2019-01-22 湖北巴乐福化工科技有限公司 A kind of paint can falls lid arrangement
CN110576052A (en) * 2018-06-10 2019-12-17 江苏君睿智能制造有限公司 Cold-rolled steel pipe transmission mechanism

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61255730A (en) * 1985-05-08 1986-11-13 Nitto Shokuhin Seizo Kk Temporary tightening device for can
JP2748639B2 (en) * 1990-03-12 1998-05-13 三菱マテリアル株式会社 Can lid feeder
JPH08257661A (en) * 1995-03-23 1996-10-08 Enomoto Kogyo Kk Method and device for manufacturing plug of container such as drum

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771149A (en) * 2012-10-22 2014-05-07 北京强度环境研究所 Cover separating mechanism
CN103771149B (en) * 2012-10-22 2016-08-31 北京强度环境研究所 A kind of point of lid mechanism
CN106256725A (en) * 2016-07-18 2016-12-28 浙江陆虎汽车有限公司 A kind of automatic blanking conveyer device
CN106256725B (en) * 2016-07-18 2019-05-14 浙江陆虎汽车有限公司 A kind of automatic blanking conveying device
CN110576052A (en) * 2018-06-10 2019-12-17 江苏君睿智能制造有限公司 Cold-rolled steel pipe transmission mechanism
CN109250515A (en) * 2018-10-24 2019-01-22 湖北巴乐福化工科技有限公司 A kind of paint can falls lid arrangement

Also Published As

Publication number Publication date
JPS5465162A (en) 1979-05-25
IN149744B (en) 1982-04-03

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