Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
  • B65B35/30—Arranging and feeding articles in groups
  • B65B35/50—Stacking one article, or group of articles, upon another before packaging
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H31/00—Pile receivers
  • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
  • B65H31/12—Devices relieving the weight of the pile or permitting or effecting movement of the pile end support during piling
  • B65H31/18—Positively-acting mechanical devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
  • B65H29/44—Members oscillated in arcuate paths
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H31/00—Pile receivers
  • B65H31/26—Auxiliary devices for retaining articles in the pile
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
  • B65H2511/50—Occurence
  • B65H2511/51—Presence
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2553/00—Sensing or detecting means
  • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
  • B65H2553/41—Photoelectric detectors

Definitions

• the invention relates to a stacking device for tape sections, in particular for textile tape sections provided with end folds, according to the preamble of claim 1.
• Such tape sections are in particular textile labels.
• Stacking devices of the type mentioned at the outset are known, for example from US-A-3 846 960. There the strip sections are deposited in a stacking shaft. For this purpose, the labels are first placed on opposing hold-down devices and then pressed into the stacking shaft by means of the press-down device when the hold-down devices are withdrawn. The hold-down devices are then extended again before the press-down devices have been pulled back into the starting position.
• a shaft floor is arranged in the stacking shaft and is connected to a guide by means of frictional engagement. As the stack progresses, the shaft floor is also retracted.
• the drive back takes place with the aid of the push-down devices when the pressure force of the push-down devices overcomes the frictional force of the frictional engagement between the shaft floor and the guide.
• the end folds of the band sections have a tendency to return to the original stretched position and thereby generate a spreading force which has a very disadvantageous effect during the stacking process, since the stack of the band sections acts like an elastic mass which is difficult to compress with the aid of the depressors and which Has a tendency to expand. In particular, this also has the consequence that the free sections of the band sections bulge upward between the hold-down devices and jeopardize proper stack formation.
• the removal of the stack compressed in this way contained the risk that the stack of falling apart would not be moved back further until the stack was relieved of tension. At best, this has to be done by hand, which is cumbersome. Presentation of the invention
• the object of the invention is to improve a stacking device of the type mentioned.
• the arching of the belt sections in the stacking shaft can be checked when the stack is being built, and whenever this bulging exceeds a predetermined dimension and the light barrier interrupts, the motorized drive of the shaft floor is activated and triggers a retraction of the shaft floor, at least as far is carried out until the light barrier is free again, but preferably until the bulge of the band sections is eliminated and these are again essentially flat.
• the additional size of the retraction is preferably adjustable. This has the significant advantage that the lowering of the shaft bottom is not brought about by the depressors, but rather by a motor drive of the shaft bottom, which enables a smooth and controlled stacking in the stacking shaft. This means that even band sections made of heavy textile materials are difficult to handle.
• the stacking shaft can be assigned to belt sections of a certain size.
• an embodiment according to claim 2 is advantageous, the side walls being adjustable to the length of the strip sections to be stacked.
• the shaft bottom can be moved by a drive from the rear.
• an embodiment according to claim 3 is particularly advantageous, the carriage floor being assigned a carriage which is arranged to be movable on a side wall.
• this slide can have its own drive.
• An embodiment according to claim 5 by a longitudinal gear is more advantageous.
• Such a longitudinal gear can be, for example, a spindle or a chain drive.
• a circumferential toothed belt is particularly preferred.
• the arrangement of the drive on a side wall results in great flexibility of the stacking shaft, since the drive can then be displaced with the side wall.
• An embodiment according to claim 6 is also advantageous.
• the carriage or the embodiment of the shaft base can be adapted to a variable width of the stacking shaft and thus to a corresponding length of the belt sections.
• the carrier facing away from the slide is designed as a connecting member which can be displaced on the associated side wall.
• the flexibility of the stacking shaft can be improved if the side walls have back wall strips on the back, which not only simplifies the mutual adjustability of the side walls but also improves the support of the stack of belt sections in the stacking shaft.
• the stacking shaft can be arranged in any position, for example horizontally. However, an embodiment according to claim 9 is more advantageous, since it is easier to put the strip sections down when the stacking shaft is arranged vertically. It is advantageous if the stacking shaft is inclined slightly backwards is arranged so that the band sections lie against the back wall and the stack can not tip forward.
• the guidance of the stack of the band sections in the stacking shaft can be improved by designing the stacking device according to claim 10.
• a guide element arranged between the side walls of the stacking shaft and extending over the length of the stacking shaft is expediently designed such that the distance of the guide element from the rear wall of the stacking shaft and, if appropriate, its position between the side walls can be adjusted.
• the stacking shaft is preferably open at the top and configured such that a packaging container can be put over the stack of belt sections in order to grasp the stack and remove it from the stacking device.
• An embodiment of the stacking device according to claim 12 is particularly advantageous, according to which the stacking lock is arranged in a stationary manner and the stacking shaft can be displaced parallel to the back wall at least between the stacking position and an unloading position. According to claim 13, an additional waiting position can be provided.
• the displaceability of the stacking shaft There are various design options for the displaceability of the stacking shaft.
• a design according to claim 14 is particularly advantageous, according to which the back wall is designed as a stationary back plate, on which the side walls of the stacking shaft are arranged to be displaceable transversely to the stacking direction.
• the hold-down devices are expediently designed as laterally extendable and retractable pins. Their mutual distance enables the depressors to reach between them.
• the latter are expediently designed as rakes which can be pivoted in and out against the stacking shaft.
• Figure 1 shows a stacking device, in a schematic representation and in detail from the front;
• Figure 2 shows the stacking device of Figure 1 in section ll-ll of Figure 1, but with the depressor retracted and without drives.
• FIGS 1 and 2 show a stacking device as it is suitable for example for a cutting and folding system according to WO 01/66343.
• the stacking device contains a stacking shaft 2 with two opposite side walls 4, 6 and a rear wall 8.
• a stack 12 of belt sections 14, which are provided with end folds 16 on both sides, is supported on a retractable shaft floor 10.
• the stacking shaft 2 is preceded by a stacking lock 17 which has retractable hold-down devices 18 and retractable depressors 20 which alternately act on the belt sections 14.
• the stacking shaft 2 is formed by the back wall 8, which is designed as a back plate, on which the side walls 4, 6 are slidably suspended via guide members 22.
• the side walls 4, 6 are equipped with mutually facing back wall strips 24 against which the band sections 14 rest with their end faces and which additionally rest on the back plate 8. This makes it possible to adjust the mutual spacing of the side walls 4, 6 to the length of the band sections 14.
• the shaft floor 10 contains a slide 26 which is assigned to a side wall 4 and which can be moved on a rail 28 of the side wall 4.
• the carriage 26 can have its own drive, but in the present example it is preferably connected to a longitudinal gear 30 which is formed from a rotating toothed belt which is driven by a motor 34.
• a guide 36 extending across the maximum width of the stacking shaft is fastened, which is preferably formed from two guide rods 38.
• Adjustable supports 40, 42 are arranged on the guide rods at a mutual spacing, on which base parts 44 are supported.
• the base parts are individually selected depending on the width of the stacking shaft 2 and, if appropriate, other desired properties.
• the base parts are advantageously made of foam rubber, so that they can be compressed.
• a carrier 42 is additionally designed as a connecting member, which is arranged displaceably on the associated side wall 6 and, moreover, is carried along along the guide rods 38 when the side wall 6 is laterally displaced.
• the carrier 42 can optionally be firmly connected to the guide rods 38 by means of fixing screws 46 in order to fix the distance between the side walls 4, 6.
• the stacking chute 2 is arranged inclined slightly backwards in order to support the storage of the band sections 4 in the stacking chute 2. This can be further supported by a guide member 48 which extends essentially over the length of the stacking shaft.
• the guide member 48 is fastened to a stand 50 on the side wall 6 by means of a coupling piece 52.
• a fixing screw 54 in the coupling piece 52 interacts with the stand 50 and enables the height of the guide member 48 to be adjusted.
• Another fixing screw 56 interacts with the guide member 48 and makes it possible to adjust the position of the guide member 48 between the side walls 4, 6.
• the guide member 48 can thus be adjusted exactly to the dimension of the stack 12 of the band sections 14.
• the stacking shaft 2 assumes the stacking position in which it interacts with the stationary stacking lock 17, in which the hold-down devices 18 and the depressors 20 are arranged.
• the hold-down devices 18 are designed as pins 60 which can be extended and retracted laterally, which are arranged at a mutual distance from one another and are driven by a lever gear 62 which is actuated by a control cam 64.
• the lever gear 62 is biased against the control cam 64 by a biasing spring 66.
• the depressors which is biased 66 against the control cam 64.
• the depressors are designed as rakes 68 which can be swiveled in and out against the stacking shaft 2 and which are also driven by a lever mechanism 70 and a control cam 72, against which the lever mechanism 70 is prestressed by means of a prestressing spring 74.
• other drives can also be provided, such as, for example, fluid-operated piston / cylinder units, stepper motors and the like.
• a light barrier 76 is assigned to the hold-down devices 18 and is connected to the drive of the shaft floor 10 via a control device (not shown in more detail).
• the operation of the stacking device is as follows.
• the hold-down devices 18 When the depressors 20 are pivoted out, the hold-down devices 18 are exposed and prevent the stack 12 of the band sections 14 from expanding upward.
• An incoming belt section 14 with end folds 16 is placed on the holding-down devices 18 by means of a feeding device, for example feeding tongs, which is not shown, whereupon the depressors 20 pivot in.
• a feeding device for example feeding tongs, which is not shown, whereupon the depressors 20 pivot in.
• the hold-down devices 18 are withdrawn and the depressors can place the belt sections on the stack.
• the hold-down devices 18 are then extended again and reach between the teeth of the rake of the press-down devices 20.
• the latter can then be extended again from the stacking shaft 2 into the position shown in broken lines so that a new band section 14 can be placed on the hold-down devices 18.
• This stacking process is continued until the belt sections bend upwards due to the internal tension of the stack and interrupt the light barrier.
• the drive of the shaft floor 10 is activated and the shaft floor is lowered by the drive at least until the light barrier is free.
• the lowering can, if necessary, be carried out in excess until the band sections lie essentially flat. This allows a smooth and careful stacking, especially of difficult tape sections, for example made of thicker, stiff textile materials.
• the shaft bottom is lowered further enough so that the stack of belt sections 14 is released from the stacking lock 17 and the stacking shaft 2 can be moved laterally into an unillustrated unloading position ,
• a packaging container can then be slipped over the stack 12 of the belt sections 14 into the stack shaft, which is open at the top, in order to take over the stack of the belt sections into the packaging container.
• the empty stacking chute 2 can be fed back to the stacking lock 17 or can be moved into a waiting position, not shown.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Pile Receivers (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=29783976

Family Applications (1)

Country Status (9)

Families Citing this family (4)

Citations (5)

Family Cites Families (8)

• 2003
  • 2003-06-16 US US10/509,353 patent/US20050175439A1/en not_active Abandoned
  • 2003-06-16 ES ES03727121T patent/ES2270032T3/es not_active Expired - Lifetime
  • 2003-06-16 AT AT03727121T patent/ATE339355T1/de not_active IP Right Cessation
  • 2003-06-16 DE DE50305050T patent/DE50305050D1/de not_active Expired - Fee Related
  • 2003-06-16 EP EP03727121A patent/EP1515893B1/de not_active Expired - Lifetime
  • 2003-06-16 WO PCT/CH2003/000388 patent/WO2004002830A1/de active IP Right Grant
  • 2003-06-16 CN CNB038136457A patent/CN100344510C/zh not_active Expired - Fee Related
  • 2003-06-16 AU AU2003233904A patent/AU2003233904A1/en not_active Abandoned
  • 2003-06-16 KR KR1020047020935A patent/KR100669918B1/ko not_active IP Right Cessation

Patent Citations (5)

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