WO2021140422A1 - Dispositif semi-automatisé pour l'insertion d'une pièce découpée de chemise dans un revêtement extérieur et procédé semi-automatisé pour ce faire - Google Patents

Dispositif semi-automatisé pour l'insertion d'une pièce découpée de chemise dans un revêtement extérieur et procédé semi-automatisé pour ce faire Download PDF

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Publication number
WO2021140422A1
WO2021140422A1 PCT/IB2021/050003 IB2021050003W WO2021140422A1 WO 2021140422 A1 WO2021140422 A1 WO 2021140422A1 IB 2021050003 W IB2021050003 W IB 2021050003W WO 2021140422 A1 WO2021140422 A1 WO 2021140422A1
Authority
WO
WIPO (PCT)
Prior art keywords
semi
liner
automated
platform
insertion platform
Prior art date
Application number
PCT/IB2021/050003
Other languages
English (en)
Inventor
Gaurav LOHIA
Original Assignee
Lohia Corp Limited
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 Lohia Corp Limited filed Critical Lohia Corp Limited
Publication of WO2021140422A1 publication Critical patent/WO2021140422A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/003—Opening or distending bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/68—Uniting opposed surfaces or edges; Taping by stitching, stapling or riveting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B31B2170/202—Construction of flexible containers having multi-layered walls, e.g. laminated or lined having liners applied in already made bags, e.g. including turning the bags inside out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles

Definitions

  • the invention relates to a semi-automated device for the manufacturing of storage bags made from tubular fabric and in particular to a semi-automated liner insertion device (or an apparatus), and a semi-automated method of inserting a liner cut piece into an outer covering, for making composite storage bags where storage bags have a liner inserted into them.
  • the composite storage bags referred to herein this description are used to store hydroscopic materials which are likely to absorb but need to be protected from moisture from atmosphere, where liner acts as a moisture barrier.
  • liner acts as a moisture barrier.
  • composite bags with liner are made by manual process which has very low productivity, labour intensive and is fully dependent upon operator.
  • the liner is mechanically inserted into outer bags, but such processes have a drawback of lower efficiency during downstream hemming of bags produced using such processes.
  • the liner mouth has to be pre-opened which is not possible in the known automated process.
  • the main object of the invention is to provide a semi-automated method of making a composite bag comprising an outer covering and a liner insert.
  • Another object of the invention is to provide a semi-automated method to make composite bags such that the integrity of the liner is not destroyed during the insertion process.
  • Another object of the invention is provide an automated device for inserting liner into outer covering of composite bags.
  • a further object of the invention is to provide a semi-automated method of making composite bags such that it allows a downstream process whereby flexibility is afforded of stitching the liner insert along with the stitching of the outer covering or stitching the outer covering without stitching the liner insert along with it.
  • Figure 1 shows an outline of the device made for the purpose of liner insertion and mounted on a height adjustable frame
  • Figure 2 shows the stage whereby the liner insert is beginning to be placed over the liner insertion platform which is actuated by a pressure foot pad
  • Figure 3 shows the stage whereby the liner insert is fully placed over the liner insertion platform as it completes its forward movement
  • Figure 4 shows the fully extended position of the liner insertion platform with liner on which the outer covering is placed manually (indicated by hands)
  • Figure 5 and 6 shows the liner insertion platform of Figures 1 to 4 being retracted to its original position and the composite unstitched bag being helped onto the stacking platform.
  • Figure 7 shows a schematic of the pneumatic circuit/activation device with spring return foot pad valve
  • Figure 8 shows a schematic of the pneumatic circuit/activation device with electrically or electronically actuated solenoid valve
  • the semi-automated liner insertion device comprises the following key parts: a height adjustable frame (10) on which the liner insertion platform (1) is mounted.
  • the frame (10) also comprises a pair of rails (3) onto which a cross member (2) that is connected to the liner insert platform (1) may move.
  • an automated pneumatic system by which the forward and backward movements (M F and M B ) of the liner insertion platform (1) in its own plane is facilitated using a pneumatic cylinder (8)
  • a stacking platform (7) to receive the composite unstitched composite open bag (6) comprising outer covering and a liner insert.
  • the stacking platform (7) is placed substantially beneath the extended position of the liner insertion platform (1).
  • the semi-automatic device of the invention facilitates an automated movement of the liner insertion platform (1) onto which a liner cut piece (4) is placed manually, followed by placement of an outer covering piece (5) on the liner cut piece (4).
  • the invention also discloses a method of inserting a liner cut piece (4) into an outer covering (5).
  • the method uses the device of the invention and comprises the following broad steps:
  • a semi-automatic or semi-automated device for inserting liner cut pieces (4) or liner bags into outer covering cut pieces (5) or outer bags is disclosed.
  • Pillow shaped storage bags for storing materials that need to be protected from moisture are often provided with a liner made of material which is impervious to moisture.
  • the invention provides a semiautomatic device which has a semi-automated movement of a liner insertion platform (1) onto which a liner cut piece (4) is placed manually, followed by placement of an outer covering piece (5) on the liner cut piece (4). Details of the device and its operation, and the method of inserting an outer covering piece (5) onto a liner cut piece (4) are now provided.
  • the semi-automated device of the invention discloses a preferably a semi- automated C-shaped liner insertion platform (1) that is capable of movement in direction parallel to the plane of the platform.
  • the horizontal movement of the liner insertion platform (1) is made possible by a cross member (2) that is fabricated using plates structure made up of structure steel and which is connected to the liner insertion platform (1).
  • the cross member (2) moves on a pair of rails (3) which form a part of the height adjustable frame (10).
  • the cross member (2) is provided with a sliding or rolling mechanism (2A) that is known to a person skilled in the art that allows it to roll or slide over the rails (3).
  • the rolling or sliding mechanism (2A) rolls or slides over the rails (3) as the cross member (2) gets pushed or pulled by the pneumatic cylinder (8), which is connected at one end to said liner insert platform (1) and at other end to an actuating device or a activation device (15) for controlling said forward and backward movements (M F and M B ).
  • the activation device (15) for controlling forward and backward movements (M F and M B ) operates on two alternative principles: a.
  • the activation device (15) consists of a pneumatic valve (12) operated by a spring based foot-pad (9) which supplies pneumatic pressure to said pneumatic cylinder (8).
  • the activation device (15) consists of a solenoid valve (13) which is actuated by an electrical signal generated from a proximity sensor (16) that is operated electrically or electronically, which supplies pneumatic pressure to said pneumatic cylinder (8), and wherein said sensor (16) is capable of sensing the operator’s hand and giving a signal to the solenoid valve (13) for its actuation
  • Rails (3) are solid or hollow bars, preferably made of high carbon steel with hard chrome plating to avoid wear.
  • the movement of the liner insertion platform (1) is controlled by pneumatic foot pad (9) which is linked with pneumatic cylinder (8) that is connected with liner insertion platform (1).
  • the liner insertion platform (1) is kept in the retracted position (see Figures 1 and 2) (also termed as the zero position or the starting position).
  • the front end (4A) of the cut liner piece (4) that is sealed at one end is held in front of the front end (IE) of liner platform (1A) manually (see Figure 2).
  • Much of the liner cut piece (4) remains hanging under its own weight in a drooped positon.
  • the liner cut piece (4) is manually held by both sides (see Figure 3), whereafter the pneumatic cylinder (8) is actuated by pressing the foot pad (9).
  • the pressing of the foot pad activates the pneumatic circuit (15), which ultimately enables travel of pressurised air to the pneumatic cylinder (8) to commence its forward movement (M F ) which in turn causes the liner insertion platform (1) to commence its own forward movement (M F ).
  • the liner cut piece (4) is manually lifted at both its sides from its drooped position to bring it substantially in the plane of the moving liner insertion platform (1).
  • the liner insert platform (1) is now optionally moved forward at a greater speed by a predetermined distance, which is determined based on the overall length of the cut piece of the liner (4). Specifically, the total distance that the liner insertion platform (1) travels is substantially the same as the length of the liner cut piece (4).
  • the device At the end of the forward movement (M F ) of the liner insertion platform (1), the device optionally sends a signal such as an audio alarm so that the operator of the device becomes aware of the stoppage of the forward movement (M F ).
  • a signal such as an audio alarm
  • the liner insert or the liner cut piece (4) is completely, that is for its entire length, placed over the liner insertion platform (1) (see Figure 3). The operator ensures that the sealed end (back end 4B) of the liner cut piece (4) is secured against the front end (1A) of the liner insertion platform (1).
  • an outer covering piece (5) that is sealed at its one end (back end 5A) is picked up by the operator from a stack (not shown) of outer covering pieces, and inserted from its open end (front end 5B) for its entire length over the liner cut piece (4) that is already inserted over the liner insertion platform (1).
  • the operator ensures that the outer covering piece (5) is also extended to the maximum possible distance (i.e. the entire length of it) so that it cannot move any further during the insertion process.
  • a composite open bag (6) (or a combine) is formed comprising the outer covering (5) into which and the liner cut piece (4) is inserted. In other words, the composite open bag (6) (or the combine) is inserted over the liner insertion platform (1).
  • the outer cut piece (5) is preferably pre-stitched or sealed at its one end (the back end 5A) thus allowing the liner cut piece (4) to be placed loosely inside it.
  • the bag makers may prefer that the liner cut piece (4) is left open at both ends and that it is stitched together with the outer covering (5) once the liner (4) is placed inside the outer covering (5).
  • either the liner cut piece (4) or the outer covering piece (5) or both of them may have both ends open so that liner (4) can be stitched later together with outer covering (5) to make a robust composite bag.
  • the backward movement (M B ) of the liner insertion platform (1) commences by removing the pressure from foot pad (9) and thereby retracting the pneumatic cylinder (8) that is connected with liner insertion platform (1).
  • a first time gap between the end of the forward movement (M F ) and the commencement of the backward movement (M B ).
  • the combine (6) may be placed slightly tight over the liner insertion platform (1). During the backward movement (M b ), this may cause the combine (6) to get stuck or adhered to the liner insertion platform (1) and move along with it. In order to ensure this does not happen, the combine (6) is held by an operator (not shown) so that it does not move backward along with the liner insertion platform (1). To achieve this, the operator must ensure that both components of the combine (6) - that is the outer covering (5) and the liner insert (4) - are held securely.
  • the composite open bag (6) thus gets removed from the liner insertion platform (1).
  • the process of removal of the composite open bag (6) from the liner insertion platform (1) may optionally be aided by the operator positively pulling the composite open bag (6) in the forward movement direction (M F ).
  • the operator releases it and it falls on its own onto a stacking platform (7) provided to stack the combines (6).
  • the operator may guide the falling combines (6) onto the stacking platform (7).
  • the liner insertion platform commences (1) its next forward movement (M F ).
  • M F next forward movement
  • M B backward movement
  • MF forward movement
  • the time gap may only be of a fraction of a second to a few seconds. This is because composite bag (6) needs to be completely removed from the insertion platform (1) by holding composite bag (6) during backward movement and ensure that it is stacked properly on the stacking platform, only after which the new cycle of liner insertion may begin.
  • the time gap may be adjusted by the operator.
  • the liner insert platform (1) may be provided with a recess (IB) along at least any one of its three accessible sides: these are left and right side arms (1C, and ID) and the front side (IE).
  • the recess (IB) is provided near the centre of the front side (IE) (see Figure 6). Gripping the combine (6) from near centre of the front side (IE) has the advantage that minimal relative motion takes place between the outer covering (5) and the liner insert (4) so that there is least amount of disturbance in the relative alignment of the outer covering (5) and the liner insert (4).
  • the actuating device in accordance with the alternative principle b of operating the actuating device for controlling forward and backward movements (M F and M b ), consists of a solenoid valve (13) which is actuated by an electrical signal generated from a proximity sensor (16) that is operated electrically or electronically, which supplies pneumatic pressure to said pneumatic cylinder (8), and wherein said sensor (16) is capable of sensing the operator’s hand and giving a signal to the solenoid valve (13) for its actuation.
  • the sensor (16) may be placed on the base frame (10) within the reach of the operator.
  • the liner insertion platform (1) may be in a different plane than that of the rails (3).
  • the height of the insertion platform (1) from ground is adjustable using the height adjustable frame (10) on which it is mounted. This has the advantage that the level or height of the liner insertion platform (1) can be adjusted to the comfort of the operator.
  • the method of liner insertion thus comprises the following broad sequential steps:
  • the speed of forward movement (M F ) in steps d, e, and f is the same.
  • the first and second time gaps are a fraction of second.
  • the height of the liner insertion platform is adjusted by the operator.
  • the manual holding together of the back end of the combine (6) is carried out near the middle of said front end (IE) of said liner insertion platform (1).
  • said liner cut piece (4) and/or said outer covering (5) is sealed before their insertion over the liner insertion platform (1).
  • said forward and backward movements are effected by supplying pneumatic pressure to said pneumatic cylinder (8) via a pneumatic valve (12) operated by a spring based foot-pad (9).
  • said forward and backward movements are effected by supplying pneumatic pressure to said pneumatic cylinder via a solenoid valve (13) which is actuated by an electrical signal generated from a proximity sensor (16) that is operated electrically or electronically, said sensor (16) capable of sensing the operator’s hand and giving a signal to the solenoid valve (13) for its actuation.
  • step g said device sends an audio alarm indicating the stoppage of the forward movement (MF).
  • the plane of movement of the liner insertion platform may be oriented at any angle with the horizontal.
  • the orientation of the side rails (3) is provided suitably to facilitate backward and forward movements (M B and M F ) of the liner insertion platform (1).
  • the semi-automated liner insertion device of the invention has the capability to produce 13-15 bags/min in comparison to 8-10 bags/min that conventional fully manual liner insertion machine are capable of producing.
  • storage bags were made from tubular fabric of Polypropylene material of size 580mm width and 900mm length in which a liner made from polyethylene material of size 600mm width and 1000mm length was required to be inserted and in particular to a device or an apparatus of and method for making composite storage bags where storage bags have a liner inserted into them.
  • the liner insertion platform was made using fabrication of structure steel. During the forward movement (MF), the insertion platform was moved at a speed of 1 m/s. The duration of stoppage of the platform movement between the forward and backward movements (MF and MB) was 1.5 second. During the backward movement (MB), the insertion platform was moved at a speed of 0.9m/s. The duration of stoppage between two consecutive cycles was 1 seconds.
  • storage bags were made from tubular fabric of Polypropylene material of size 600mm width and 960mm length in which a liner made from polyethylene material of size 640mm width and 1060mm length was required to be inserted and in particular to a device or an apparatus of and method for making composite storage bags where storage bags have a liner inserted into them.
  • the liner insertion platform was made using fabrication of structure steel. During the forward movement (MF), the insertion platform was moved at a speed of 1 m/s. The duration of stoppage of the platform movement between the forward and backward movements (MF and MB) was 2 second. During the backward movement (MB), the insertion platform was moved at a speed of 0.9m/s. The duration of stoppage between two consecutive cycles was 1.5 seconds.

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Automatic Assembly (AREA)
  • Making Paper Articles (AREA)
  • Buffer Packaging (AREA)

Abstract

L'invention concerne un dispositif semi-automatisé d'insertion de chemise et un procédé semi-automatisé d'insertion d'une pièce découpée de chemise dans un revêtement extérieur pour former un ensemble (6). Le dispositif semi-automatisé comprend un cadre réglable en hauteur (10) sur lequel est montée une plate-forme semi-automatisée d'insertion de chemise (1) et qui peut se déplacer sur une paire de rails (3) à l'aide d'un vérin pneumatique (8) 10 relié à un élément transversal (2) pourvu d'un mécanisme de roulement ou de coulissement (2A). Le vérin pneumatique (8) est commandé par une vanne pneumatique (12) ou une électrovanne (12). Le procédé semi-automatisé de l'invention consiste à faciliter un mouvement automatisé de la plate-forme d'insertion de chemise (1) sur laquelle une pièce découpée de chemise (4) est placée manuellement, puis à mettre manuellement en place une pièce de revêtement extérieur 15 (5) sur la pièce découpée de chemise (4) pour former un ensemble (6), après quoi la plate-forme d'insertion de chemise est repliée semi-automatiquement pour terminer un cycle.
PCT/IB2021/050003 2020-01-06 2021-01-02 Dispositif semi-automatisé pour l'insertion d'une pièce découpée de chemise dans un revêtement extérieur et procédé semi-automatisé pour ce faire WO2021140422A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202011000447 2020-01-06
IN202011000447 2020-01-06

Publications (1)

Publication Number Publication Date
WO2021140422A1 true WO2021140422A1 (fr) 2021-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/050003 WO2021140422A1 (fr) 2020-01-06 2021-01-02 Dispositif semi-automatisé pour l'insertion d'une pièce découpée de chemise dans un revêtement extérieur et procédé semi-automatisé pour ce faire

Country Status (2)

Country Link
TW (1) TWI785455B (fr)
WO (1) WO2021140422A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015515A (en) * 1976-04-16 1977-04-05 Bemis Company, Inc. Apparatus for inserting liners in bags
EP0140360A2 (fr) * 1983-11-03 1985-05-08 Franz X. Huemer Machine de confection pour la fabrication de sacs doubles
US5735786A (en) * 1996-11-01 1998-04-07 K & R Equipment, Inc. Method and apparatus for automatically lining a container

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2352460Y (zh) * 1998-11-02 1999-12-08 冯新培 一种可快速套插灌装的自封口复合包装袋
US6767316B2 (en) * 2001-12-17 2004-07-27 R. A. Pearson Co. Packaging container liner insertion and cuffing apparatus and methods
CN103692695B (zh) * 2013-11-27 2017-02-08 温州振平机械有限公司 一种带内衬膜的缓冲包装袋制造机的折叠定位装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015515A (en) * 1976-04-16 1977-04-05 Bemis Company, Inc. Apparatus for inserting liners in bags
EP0140360A2 (fr) * 1983-11-03 1985-05-08 Franz X. Huemer Machine de confection pour la fabrication de sacs doubles
US5735786A (en) * 1996-11-01 1998-04-07 K & R Equipment, Inc. Method and apparatus for automatically lining a container

Also Published As

Publication number Publication date
TWI785455B (zh) 2022-12-01
TW202138172A (zh) 2021-10-16

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