EP0016691B1 - Vorrichtung zum automatischen Befüllen von Säcken am Auslaufstutzen eines Fülltrichters - Google Patents

Vorrichtung zum automatischen Befüllen von Säcken am Auslaufstutzen eines Fülltrichters Download PDF

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Publication number
EP0016691B1
EP0016691B1 EP80400335A EP80400335A EP0016691B1 EP 0016691 B1 EP0016691 B1 EP 0016691B1 EP 80400335 A EP80400335 A EP 80400335A EP 80400335 A EP80400335 A EP 80400335A EP 0016691 B1 EP0016691 B1 EP 0016691B1
Authority
EP
European Patent Office
Prior art keywords
bag
hollow element
bags
drum
sack
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
EP80400335A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0016691A1 (de
Inventor
Bruno Gmür
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.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Priority to AT80400335T priority Critical patent/ATE451T1/de
Publication of EP0016691A1 publication Critical patent/EP0016691A1/de
Application granted granted Critical
Publication of EP0016691B1 publication Critical patent/EP0016691B1/de
Expired legal-status Critical Current

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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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated

Definitions

  • the invention relates to a device for automatically filling sacks at the outlet of a hopper, the empty sacks being stacked in a sack magazine in a horizontal position, with a suction device for removing the sacks individually from the sack magazine and for pivoting the respective sack into an im essentially vertical hanging position, with a spreading device for widening the respective sack into its mouth area and with a holding device for clamping the sack mouth at the outlet nozzle.
  • the suction elements used for bag separation are fastened to arms with an axis which is fixed to the frame and which is arranged parallel to one of the two sides of the bag.
  • the gripped sack is first transferred from its horizontal stacking position into a substantially vertical position, then it is gripped by suction elements that are arranged on pivotable arms in its area near the mouth, then transferred to a position pivoted by approximately 90 ° (vertical hanging position) and thereby at the same time slipped over the discharge nozzle of the hopper.
  • this known device still requires the use of a plurality of pivotable individual elements, the uppermost sack picked up from the stack of sacks having to be transferred from the receiving device to another pivoting device before it can reach the outlet nozzle of the filling funnel.
  • This transfer of the sack picked up from the receiving device to another device for slipping onto the discharge nozzle of the filling funnel in turn, in principle, in turn again offers the possibility of malfunctions occurring.
  • the object of the invention is to improve such a known device in such a way that further increased operational safety is achieved, the number of pivoting elements is reduced and, at the same time, the change in position caused by the guide movements of the sack gripped is kept as low as possible until it is slipped onto the outlet nozzle .
  • the suction device for the individual removal of the sacks from the sack magazine is designed as a drum provided with adhesives, which can be displaced horizontally in a frame by a parallel to the surface of the sacks stored in the sack magazine and perpendicular to the longitudinal axis of the axis is rotatably mounted and can be lowered onto the sacks in such a way that the sack of the sack magazine lying on top is gripped by the adhesive means only in the vicinity of the sack opening.
  • the device according to the invention enables a particularly safe, fully automatic operation in that the sack is held here only by one device, namely the drum, from its position in the sack magazine to being slipped over the outlet nozzle of the filling funnel.
  • the sack is transported in a very short way from its position in the top of the sack magazine to its overturning position at the discharge nozzle of the hopper. without it being necessary to switch on several, mutually perpendicular pivoting movements of the sack one after the other.
  • the entirety of all the steps taking place can essentially take place in the context of a slight angular rotation of a drum (approximately a quarter turn) and small horizontal and vertical displacement movements without the sack being transferred from one device to one or more others on its way from the sack magazine to the outlet nozzle ought to.
  • the simple sequence of movements not only ensures a particularly rapid chronological sequence, but also enables a remarkably simple control option.
  • the drum is preferably rotated after it has been lowered onto the sacks and after the subsequent activation of the adhesives to raise the end of the sack on the opening side. During or even after this twisting movement, which is preferably carried out by a range of 90 °, the drum is raised in order to separate the uppermost sack from the sack magazine particularly effectively and quickly from the sacks below it.
  • pneumatic suction cups or similar are preferred used as an adhesive on the outside of the drum pneumatic suction cups or similar.
  • the function of the drum used is as follows: the drum is lowered onto the sack in such a way that the adhesives attached to the drum can grasp the sack located at the top near the sack opening.
  • the suction cups When lowering the drum is lightly pressed onto the stack of sacks and then the suction cups are activated, ie, placed under negative pressure such that they remove the top sack of the stack with a relatively strong suction force. It is recommended that the adhesives be arranged on the outside of the drum over a width corresponding to the width of the sacks to be picked up, with at least two to three suction cups being effective. should be. Thereafter, the drum with the suction cups attached to it and the detected sack opening area is mechanically subjected to a rolling movement in such a way that the open end of the sack is lifted on one side.
  • a clamping jaw cooperating with the drum for widening the opening of the gripped sack is preferably brought up to the sack hanging on the suction cups of the drum in such a way that the drum and clamping jaw preferably press the opening end of the sack together with slight pressure.
  • the same or similar adhesives are provided on the clamping jaw as on the drum. In order to achieve completely interference-free and stop-free, merging movements, it has proven to be.
  • the adhesives are attached to flexible leaf springs both on the drum and on the clamping jaw, the latter preferably being connected to mechanical actuating elements in such a way that they can be brought into a bulbous shape and thereby from the clamping jaw effective adhesive and from the drum on the other side in the mouth region of the gripped sack are placed in such a position that the sack is pulled apart at its opening and the opening region of the gripped sack is substantially brought into an oval shape.
  • the opening of the sack takes place at the upper edge through a deformation of the leaf springs of both the clamping jaws, as well as the drum and the suction cups attached to them (spread apart).
  • the bag opened in this way can then be pulled onto the bag neck, which is also usually made in an oval shape, in such a way that, for. B. the upper edge of the bag is 5 to 10 cm higher than the lower edge of the filler neck.
  • the drum and clamping jaw are brought into an upper lifting position after the sack opening has been widened, the open end area of the sack being guided over the outlet nozzle. It is advantageous if the holding device for clamping the bag mouth on the outlet nozzle can only be actuated when the drum and clamping jaw have reached their upper lifting position.
  • the overall flow of the device turns out to be very fluid, i. H. without the occurrence of large jerking movements, which is particularly clearly the case when the drum as well as the clamping jaw are driven by pneumatic actuation means, in particular by pneumatic cylinders.
  • a carousel which can be rotated about a vertical axis by means of a motor and has a plurality of outlet connections is provided which, after a sack has been attached to an outlet connection in the loading position (filling position), can be rotated such that a new outlet connection reaches the filling position.
  • the carousel preferably has four, five or six outlet connections and is advantageously brought into the respective loading or filling position by means of a pole-changing motor. It is advantageous if the motor of the carousel can be switched to a fast and a slow speed, whereby. it, again preferably, is provided with a brake and one of its phases can be connected to a resistor (when starting).
  • a further improvement of the device according to the invention with regard to the automatic sequence is achieved in that an optical control element (detector) is attached to the adhesive drum, which can both detect the presence of a sack and possibly a sack label and report it to a central control and command unit.
  • an optical control element detector
  • the device according to the invention can advantageously be switched so that it simultaneously prepares (detects) a new sack while the carousel brings the nozzle to be hung into the ready position.
  • the device shown in FIG. 1 has a carousel 1 with an automatic bag trailer 2.
  • a sack stack 3 is mounted on a table 4 (shown schematically), an adhesive drum 5 being held on guide columns 6 and 7 above the table.
  • the drum 5 has a fulcrum 8 and adhesive 9 and can be rotated about its fulcrum by a pneumatic cylinder 10.
  • the horizontal movement of the drum 5 is triggered by a pneumatic cylinder 11 which is articulated on a crossbar of the guide columns 6 and 7.
  • the drum 5 is attached to the vertical machine stand 13 by means of a pull chain 12, which enables a smooth rolling movement when the bag is lifted in the positions from FIG. 2c to FIG. 2d.
  • a clamping jaw 20 is provided which is slidably mounted horizontally above the pneumatic cylinder 21 on the guide columns 6 and 7, the cylinder 21 also being mounted on the crossbar of the guide columns 6 and 7.
  • the clamping jaw 20 has adhesives 9 which are identical to those which are attached to the drum 5.
  • the entire unit of the guide columns 6 and 7 with the drum 5 and the clamping jaw 20 can be lowered and raised about a pivot point 22 by the pneumatic cylinders 23 and 24.
  • An end plate 25 describes an arc in a corresponding guide in the machine stand 13.
  • a nozzle 30 is shown (FIG. 1), on which a clamping device 31 can be opened and closed by means of a pneumatic cylinder 32.
  • the representation of the carousel 1 is shown only schematically in FIG. 1 and on a smaller scale than the representation of the lower automatic bag hanger 2, the exact position of the two devices being rotated into the image plane.
  • the carousel 1 has a drive motor 33 and a gear 34, both of which are attached directly to the carousel 1 in such a way that an overdrive shaft 35 of the gear 34 forms the axis of rotation of the carousel.
  • the material to be filled e.g. B. flour
  • the material to be filled is passed through a funnel 36 into the opening 37 in the outlet nozzle 30 and fed directly from there into the attached sack 40.
  • all important control commands can be fed from a central control unit 38 via corresponding feed lines 39.
  • FIGS. 2a to 2e The movement sequences of the drum 5 are shown in FIGS. 2a to 2e, the starting position of the adhesive drum 5 relative to the bag stack 3 being recorded in FIG. 2a.
  • the adhesive drum 5 has carried out a rotary movement by 90 ° around the pivot point 8, the movement being triggered above the cylinder 10.
  • the drum with the adhesive 9 is lowered over the cylinder together with the unit of the guide columns 6 and 7 about the pivot point 22 onto the bag stack 3.
  • the designed as suction cups 9 are placed under negative pressure and then suck on the top sack 40, z. B. a paper or plastic bag.
  • the drum 5 then rotates clockwise by 90 °, which is triggered by the cylinder 11, which pulls the adhesive drum 5 backwards.
  • the pull chain 12, which lies rolled up over the drum 5, forces it onto a smooth movement.
  • the other end of the sack 40 is not moved during this movement.
  • FIG. 2e shows this latter phase, with the clamping jaw 20 and the adhesive drum 5 clamping the bag.
  • the adhesives 9 of the clamping jaw 20, which are designed as suction cups, are now also placed under negative pressure. This is the starting position for the position of the device shown in plan view and somewhat enlarged scale in FIG. 3.
  • FIG. 4 shows the same device as shown in FIG. 3, but in the subsequent movement phase: the adhesive means 9 designed as suction cups are both in the drum 5, as in attached to flexible jaws 54 and 55 at jaw 20. These leaf springs are held over pressure rods 56 which engage the respective outer ends of the leaf springs 54, 55. The leaf springs 54 and 55 are also attached in the middle to a tab 57 so that each spring is held at three points.
  • the drive mechanism 58 has two toothed segments 59 and 60, which mesh with one another and thus ensure that both ends of the leaf spring are synchronized. The toothed segments 59 and 60 are fixed in the drum 5 approximately in the center at pivot points 61 and 62. The same also applies to the clamping jaw 20.
  • the toothed segments 59 and 60 are actuated via a pneumatic cylinder 63 and 64, respectively.
  • the cylinder 63 drives the clamping jaw 30 to the left by the distance 2a via tooth segments 59 and 60 and a lever device 65 (arrow 66).
  • the cylinder 64 is pressurized and it pushes the spring ends over the corresponding toothed segments to the right, so that the sack 40 remains permanently clamped between the leaf spring ends at the lateral ends, but the opening of the sack 40 assumes an approximately oval shape in plan view (The opening shape shown in FIG. 4 is specifically referred to here).
  • the cylinder 21 remains under pressure, but due to its lower force brakes the horizontal movement of the jaw 20 in the direction of arrow 66.
  • the whole unit (guide columns 6, 7 and 8, drum 5 and jaw 20 with open bag 40) can be raised about the pivot point 22 by means of the cylinder 24, after which the upper ends of the bag between the outlet nozzle 30 and the clamping device 31 slide.
  • the clamping device 31 then clamps the bag 40 to the outlet connection 30. Thereafter, the negative pressure on the adhesives 9 designed as suction cups is removed, the entire unit lowers back into its starting position when the cylinder 24 is actuated, and a new movement cycle can begin.
  • the device for the individual removal of the bags 40 from the bag stack 3 can already (at the same time) detect a new bag and prepare it for filling, while the carousel 1 is still putting the next outlet nozzle 30 to be hung in the loading or standby position brings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Basic Packing Technique (AREA)
EP80400335A 1979-03-14 1980-03-14 Vorrichtung zum automatischen Befüllen von Säcken am Auslaufstutzen eines Fülltrichters Expired EP0016691B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400335T ATE451T1 (de) 1979-03-14 1980-03-14 Vorrichtung zum automatischen befuellen von saecken am auslaufstutzen eines fuelltrichters.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2409/79 1979-03-14
CH240979 1979-03-14

Publications (2)

Publication Number Publication Date
EP0016691A1 EP0016691A1 (de) 1980-10-01
EP0016691B1 true EP0016691B1 (de) 1981-12-02

Family

ID=4233117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400335A Expired EP0016691B1 (de) 1979-03-14 1980-03-14 Vorrichtung zum automatischen Befüllen von Säcken am Auslaufstutzen eines Fülltrichters

Country Status (7)

Country Link
US (1) US4320615A (ja)
EP (1) EP0016691B1 (ja)
JP (1) JPS55126021A (ja)
AT (1) ATE451T1 (ja)
DE (1) DE3000496C2 (ja)
ES (1) ES8100198A1 (ja)
GB (1) GB2045197B (ja)

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US8689523B1 (en) 2009-04-10 2014-04-08 Gw Services, Llc Ice bagging assembly with accessible hopper
US8528302B1 (en) 2009-04-10 2013-09-10 In-Store Bagging Machine Company, LLC Ice bagging device
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CN102259709B (zh) * 2010-05-31 2013-08-07 比亚迪股份有限公司 一种用于包装袋的包装装置
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CN102616408A (zh) * 2012-04-13 2012-08-01 常州先进制造技术研究所 一种全自动定量包装机
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CN103213699B (zh) * 2013-04-23 2015-03-18 武汉人天包装技术有限公司 一种自动夹袋充填装置
CN103482134B (zh) * 2013-09-18 2015-07-01 中国农业大学 一种自动取袋、套袋机构
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CN104354924B (zh) * 2014-10-30 2017-06-23 安仁县生平米业有限公司 用于大米袋包装的包装机
CN105035414A (zh) * 2015-06-12 2015-11-11 上海理工大学 取袋开袋机
CN106628385A (zh) * 2016-11-10 2017-05-10 无锡耐特机电技术有限公司 自动纠偏型上袋机
GB2576869A (en) * 2018-07-12 2020-03-11 Frugalpac Ltd Apparatus for manufacturing a container
CN108995894A (zh) * 2018-08-23 2018-12-14 何雅楠 一种便于食品包装袋的快速开袋设备
CN109229576B (zh) * 2018-08-23 2020-10-09 吉林省玉竹源满族食品有限公司 一种便于食品包装袋的快速开袋装置
CN112061494B (zh) * 2020-09-17 2022-04-08 佛山市炫捷咨询有限公司 套袋装置
CN112158394B (zh) * 2020-11-18 2021-12-17 迈特威智能设备(广东)有限公司 一种具有自动套袋撑口结构的塑封袋包装设备
KR20230039834A (ko) * 2021-09-13 2023-03-22 삼성디스플레이 주식회사 쉴딩백 그리핑 장치, 이를 포함하는 디스플레이 포장 시스템, 및 이들을 이용한 디스플레이 포장 방법
CN113636153B (zh) * 2021-10-14 2021-12-10 徐州友田生物科技有限公司 一种有机肥成品包装设备

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Also Published As

Publication number Publication date
ES489428A0 (es) 1980-11-01
GB2045197A (en) 1980-10-29
DE3000496A1 (de) 1980-09-18
ATE451T1 (de) 1981-12-15
EP0016691A1 (de) 1980-10-01
JPS55126021A (en) 1980-09-29
GB2045197B (en) 1983-06-15
DE3000496C2 (de) 1984-05-03
US4320615A (en) 1982-03-23
ES8100198A1 (es) 1980-11-01

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