WO1998018676A1

WO1998018676A1 - Packaging apparatus

Info

Publication number: WO1998018676A1
Application number: PCT/JP1997/003984
Authority: WO
Inventors: Tohru Hirasawa
Original assignee: Nippon Seiki Co., Ltd.
Priority date: 1996-10-31
Filing date: 1997-10-30
Publication date: 1998-05-07
Also published as: CN1206383A; KR19990076792A; CN1105665C; KR100315393B1; JP3045279B2; JPH10129607A

Abstract

A packaging apparatus which comprises a charging unit (4) allowing an article (3) being packaged to be automatically or manually charged and supplied thereto by a supply device (16), and a plate-shaped positioning shutter body (15) arranged closer to a conveyance side than to a charging position of the charging unit (4) and on a conveyance upstream side of a lateral sealing device (5) to be interposed between a folded film (1), the shutter body (15) being constructed in such a manner as to move toward the conveyance side and turn upward for retreat as well as to return and turn downward to move to the conveyance upstream side while the shutter remains closed.

Description

Specification

Technical field

TECHNICAL FIELD The present invention relates to a packaging apparatus for successively packaging objects to be packaged in a film while forming the film into a cylindrical shape. Background art

As a general packaging device of this type, a film rolled continuously into a roll from a supply unit is pulled out, and the drawn-out heat-sealable band-like film is folded into a folded state with the upper part opened. A transport device that transports the folded film is provided in a transport guide portion that is folded and transported forward, and the upper left and right edges of the folded film are held in the transport guide portion by a predetermined length. An opening guide section for guiding the transfer is provided as a loading section. From the loading section, a packaged object is supplied to the loading position at a predetermined interval into the film, and the upper opening of the film containing the packaged article is overlapped and sealed. A horizontal sealing device that is closed to form a cylindrical film is provided, and a portion of the cylindrical film, which is intermittently conveyed by the conveying device, between the objects to be packaged is heated. And a cutting device for cutting the space between the vertical sealing portions and separating the subsequent cylindrical film and the packaging bag containing the articles to be packed on the transfer side at the transfer end of the transfer device. I have.

In addition, the packaged articles are sequentially and manually placed on the opening guide section of the film serving as the input section, or the delivery end of the feeding device such as a conveyor device is disposed above the opening guide section. The package is automatically sent out sequentially onto the opening guide of the film as the loading section while feeding the packaged article through a feeding device such as the conveyor device, and the packaged article is placed at the loading position. The packaged material supplied (placed on the open guide portion) is transported together with the folded film, and is subjected to the above-described processes to form a bag. .

By the way, in accordance with the intermittent transport of the film, the packaged product is manually supplied onto the opening guide of the film serving as the input section so that the packaged product is transported at a predetermined interval. Opening of the film as the loading section so that the supply timing of the transfer device is synchronized with the intermittent transfer of the transfer device. Even when automatic feeding is performed on the discharge guide section, variations in the feeding position due to the supply of the packaged product may cause variations in the supply interval of the packaged product, causing the vertical length of the cylindrical film to be performed in a later process. The sealing position and the cutting position are not always located between the packages, and may be offset to the side of L or slippage, which may hinder the bag making process.

Therefore, conventionally, a shirt plate for preventing the transport of the packaged object is provided at the loading position so as to be openable and closable so that it can be used as a guide when placing and loading the shirt plate or functioning as a positioning plate. The transport is blocked by a plate, and the package is transported together with the film by opening the shirt plate.By controlling the transport of the film and the opening and closing of the shirt body, the package is placed at regular intervals. There has been proposed a device configured to be conveyed. However, simply opening and closing the shirt board as in the related art may cause a positional shift when the packaged object is supplied to the input section based on the shirt board. Due to this positional deviation, the interval between the articles to be packaged is not always constant, so that the articles to be packaged may be entangled in the bag making process by the vertical sealing device or the cutting device on the transport side.

The present invention further improves the structure of the shirting plate, dramatically improves the positioning accuracy by a simple method, keeps the packaged items at a constant interval, and improves the bag making process. And to provide an innovative packaging device. Disclosure of the invention

The present invention is provided on the carry-in side of a transfer device 2 for continuously transferring a film 1 folded back into a folded state with the upper part being opened while pulling out a roll-shaped film. A charging section 4 that can be supplied at a predetermined interval, and an upper opening of the film 1 provided in the middle of the transport device 2 and supplied with the article 3 to be packaged to form the film 1 into a cylindrical shape. Between the horizontal sealing device 5 and the transport end of the transport device 2 or the transport side of the horizontal sealing device 5 on the transport side, and between the packaged object 3 and the packaged object 3 of the cylindrical film 1 to be transported. A vertical sealing device 6 for closing the gap, a middle portion of the sealed portion of the film 1 closed by the vertical sealing device 6, and a subsequent cylindrical film 1 and a packaging bag 12 containing the article to be packed on the transport side. Packaging with a cutting device 7 for separating In the apparatus, a positioning shutter body 15 that can prevent the transport of the packaged object 3 is provided on the loading section 4 or on the transport side from the loading section 4 so as to be able to retreat upward and freely open and close. Positioning to open and close Since the shirt body 15 is configured to be reciprocally movable in the transport direction, the transport of the packaged object 3 is prevented by the positioning shirt board 15 (or is in a closed state that can be blocked), and the positioning shutter body 15 is moved. By retreating upward, the package 3 is transported together with the transport of the film 1.

In addition, the present invention also provides the positioning shirt body 15 on the transport side from the loading position of the loading section 4 to which the packaged object 3 is supplied, and closer to the transport side than the horizontal sealing device 5. It is arranged so as to be interposed between the films 1 in a state, and by moving the positioning shirt body 15 toward the conveying side in a shutter closed state, the packaged object 3 can be pushed back and moved. The position of the package 3 with respect to the film 1 is regulated, and at a predetermined time, the positioning shirt body 15 is retracted to open the shirt, and the package 3 is transported together with the film 1, and the package 3 is opened. Are transported at predetermined intervals, so that the positioning body 15 moves toward the transport side with the hanging shirt closed, and this movement moves the package 3 toward the transport side. Reconstituted, it is possible to always Bok positioning set to be packaged 3 at a predetermined position.

Therefore, the packaged material 3 that is always thrown in can be positioned and set at a fixed position by the return position of the shirt body 15. In addition, since the package 3 is positioned by being pushed back slightly with the positioning shirt body 15, it is always positioned. The packaged object 3 hits the shirt body 15 and the positioning shirt body 15 and the packaged object 3 were not separated from each other. Are unlikely to occur, and the positioning accuracy will be dramatically improved. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view schematically illustrating the structure of the present embodiment, FIG. 2 is a plan view schematically illustrating the structure of the present embodiment, and FIG. FIG. 4 is a schematic enlarged explanatory side view of a bag forming processing portion of the present embodiment before cutting processing, and FIG. 5 is a cutaway of a bag forming processing portion of the present embodiment. FIG. 6 is a schematic configuration enlarged explanatory side view at the time of processing, FIG. 6 is a schematic configuration enlarged explanatory side view after a cutting process of a bag making processing portion of the present embodiment, and FIG. 7 is a main part of the present embodiment. FIG. 8 is a schematic configuration enlarged explanatory perspective view of the (feeding portion), and FIG. 8 is a schematic configuration enlarged explanatory perspective view of the shutter structure with the opening guide portion of FIG. FIG. 9 is a schematic enlarged side view of the essential part (input part) of the present embodiment in a state in which the transport of the article to be packaged has been temporarily stopped (a state in which it can be stopped). FIG. FIG. 9 is a schematic enlarged explanatory side view showing the completion of the positioning set in which the positioning shutter body has moved back from the state shown in FIG. 9 and pushed back the packaged material a little, and FIG. FIG. 5 is a schematic configuration enlarged explanatory side view showing a state in which the positioning shirt body is retracted and rotated from the state and the packaged object is transported together with the film. BEST MODE FOR CARRYING OUT THE INVENTION

A specific embodiment of the present invention will be described with reference to the drawings.

First, the schematic configuration and operation of the packaging apparatus of the present embodiment using the charging section 4 having the shirt structure according to the present invention will be described with reference to FIGS.

For example, a film 1 that is continuously wound into a roll from the supply unit S is drawn out, and the drawn-out heat-sealable band-like film 1 is folded back into an open state at an upper portion and conveyed forward. A transport device 2 for transporting the two-folded film 1 is provided in a transport guide portion 13 composed of: and the left and right upper edges of the two-folded film 1 are held in the transport guide portion 13 by a predetermined length. An opening guide section for guiding the conveyance in a state is provided as a loading section 4, and a package 3 such as a mushroom is supplied from the loading section 4 into the film 1 at a predetermined interval, and a film containing the package 3 is stored. An ultrasonic welding type horizontal sealing device 5 is provided by forming a cylindrical film 1 by closing the upper opening portion with a polymerization seal, and the packaged material of the cylindrical film 1 which is intermittently conveyed by the conveying device 2 is provided. A vertical sealing device 6 for sandwiching and heat-sealing the portion between 3 and the package 3 and cutting the space between the vertical seals into the subsequent tubular film 1 and the package 3 on the transport side. A cutting device 7 for separating the packaging bag 12 is provided at the transfer end of the transfer device 2, and a transfer device 11 is provided further on the transfer side than the cutting device 7, and the cylindrical film 1 is pressed above the transfer device 11. A degassing device 10 for attaching and degassing is provided, and after degassing, the vertical sealing device 6 and the cutting device 7 are operated to convey and discharge the degassed packaging bag 3 containing the packaged goods 3 by the transfer conveyance device 11. Configuration.

That is, the cylindrical film 1 containing the article 3 to be packaged is intermittently transported together with the article 3 placed and supplied to the input section 4 by the transport device 2, and degassed by the deaerator 10, and then left and right. In addition, the cylindrical film 1 is pressed and shaped by the pressing device 8 from above and below. The rear packaged object 3 and the front packaged object 3 are sealed in the film 1 in a partitioned state by the sealing device 6 and cut by the cutting device 7, and the sealed packaged product 3 is entered on the transport side. The packaging bag 12 is discharged, and the leading end of the subsequent cylindrical film 1 is closed.

Then, it is intermittently conveyed again, and by repeating this operation, the articles to be packaged 3 are automatically packaged one after another in the film 1 by a predetermined amount.

In addition, in order to keep the packaging form of the bulky packaged material 3 good, before the vertical seal is closed, the gusset claws 9A are pushed inward from both side surfaces of the cylindrical film 1 and retracted. A gusset device 9 is provided in which the side portion of the film 1 is folded inward (gazette is applied).

The present invention is an application of the present invention to the charging section 4 of such a packaging apparatus.

Next, the configuration of the charging section 4 having the shirt structure, which is the gist of the present invention, will be described with reference to FIGS. 7 to 11. FIG.

The material to be packaged 3 is slightly transported from the loading position of the loading portion 4 (opening guide portion) where the feeding device 16 (conveyor device) automatically drops and supplies the material in sequence, and the transported material is located closer to the transport side than the horizontal sealing device 5 A plate-shaped positioning shutter body 15 for closing the transport route of the package 3 and preventing the transport of the packaged object 3 is provided so as to be interposed between the folded films 1.

The shutter body 15 is configured so as to be retracted and rotated upward on the transport side from the suspended shutter closed state by the rotation drive mechanism 18.

The shirt body 15 is configured to slide reciprocally in the transport direction by a reciprocating drive mechanism 19.

In the present embodiment, when the shutter is retracted upward from the hanging shutter closed state and retreats to the upper side of the transport side, it simultaneously slides to the transport side. The object 3 is fed in by feeding or film transport, and is first returned downward by the rotation drive mechanism 18 to rotate the shirt body 15 as shown in FIG. As shown in (1), the reciprocating drive mechanism 19 returns to the front side of the transport and re-slids.

The shirt body 15 is slid to the front side of the transport in the closed state of the shirt, so that the next packaged object 3 is slightly pushed back to the front side of the transport.

Therefore, the packaged object 3 is pushed back by the shirt body 15 as shown in FIG. After being positioned at the predetermined position as shown in FIG. 11, since the shirt body 15 is opened and the package 3 is conveyed as shown in FIG. 11, the package 3 is always returned to the return position of the shirt body 15. As a result, it is possible to set the positioning at a certain position, and because of the positioning by pushing back, the package 3 always hits the shirt body 15 and the package 3 is separated from the shirt body 15. And the penetration in the vertical sealing process and the cutting process does not easily occur, so that the positioning accuracy is dramatically improved.

Further, in this embodiment, as described above, the supply of the package 1 is automatically performed one after another by the supply device 16, and the transport of the film 1 is intermittently stopped at a position where the supplied packaged product 3 is slightly transported slightly beyond the positioning position. The feeding timing of the supply device 16 is set so that the positioning shirt body 15 which has been retracted upward while rotating to the transport side as described above is returned downward and rotated, and this shirt evening closed state is set. In this configuration, the next packaged object 3 is set to be pushed back to the above-mentioned positioning position by the shirt body 15 so as to always be pushed back. When placed on the top, the positioning shirt body 15 is configured to be held in a hanging closed state at the time of insertion, and the package 3 is sealed using the shirt body 15 as a guide. When the film is placed close to the body 15, the positioning shirt body 15 once returns to the front side of the conveyance as described above and pushes back the package 3 before the conveyance of the film 1 is resumed. Even in the case of loading, the package 3 is configured to be pushed back a little and positioned at an appropriate position. Further, in this embodiment, the above operation is reliably performed, and the transport of the film 1 is started (restarted) so that the transport of the film 1 is not started even though the package 3 is not supplied. A confirmation sensor 14 is provided.

That is, in a closed state where the positioning shirt body 15 hangs down, when the confirmation sensor 14 detects the packaged object 3 which is supposed to be in front of the positioning shutter body 15, the reciprocating drive mechanism 19 operates. Then, the positioning shutter 15 is pushed back and moved forward to set the package 3 in position. In conjunction with this, the rotation drive mechanism 18 is operated to open the positioning shutter 15, and with this, the transport device 2 is moved. Is activated, and the package 3 is transported with the film 1 for a predetermined distance, and then stopped.

During the stop, the positioning shirt body 15 is closed, and the vertical sealing device 6 and the cutting device 7 are operated to perform a bag making process. Upon completion of this operation, this operation is repeated again on condition that the detection operation of the confirmation sensor 14 is again performed.

Next, the rotation drive mechanism 18 and the reciprocation drive mechanism 19 will be described, and the specific structure in this embodiment will be further described.

FIG. 8 is a schematic structural explanatory view of a main portion of the charging section 4 with the open guide section removed to make the structure clear. As shown in FIG. Adjacent to the transport guide section 13 for folding back the film 1, mounting plates 17 serving as mounting members 17 are provided on the left and right outer sides of the folded film 1, and rotating plates 15 are provided above the mounting plate 17 respectively. A is rotatably connected via a support shaft 20, a mounting plate 15 B is erected between the rotating plates 15 A, and a plate-shaped positioning shutter body 15 is suspended from the mounting plate 15 B. Thus, the shutter body 15 is provided rotatably with respect to the mounting member 17.

A cylinder device 18A for rotational drive is provided on the outer surface of one side of the mounting plate 17 serving as the mounting member 17, and a rod 18B of the cylinder device 18A is connected to the rotary plate 15A. The rotation drive mechanism 18 is configured so that the rotation plate 15A is rotated by the advance and retreat of the rod 18B due to the operation of the rotation of the rod 18B, and the positioning shutter body 15 is rotated around the support shaft 20 as a base point. .

Also, a connecting board 17A is erected below the mounting plate 17 serving as the mounting member 17, and the connecting board 17A is connected to moving pieces 19A arranged on the left and right, respectively. The body 19A is configured to move along a guide rod 19B arranged on the left and right sides, and a rod 19D of a cylinder device 19C for sliding movement is connected to the connecting board 17A.

Therefore, by operating the cylinder device 19C to move the rod 19D back and forth, the mounting plate 17 serving as the mounting member 17 slides in the transport direction while being guided by the left and right guide rods 19B. When the mounting plate 17 as the member 17 slides in the transport direction, the positioning shutter 15 rotatably assembled to the mounting plate 17 slides back and forth in the transport direction.

Since the present invention is configured as described above, the supplied packaged object 3 can be positioned and set at a fixed position by the return position of the positioning shirt body 15, and is positioned by being slightly pushed back by the positioning shirt body 15. Therefore, the packaged object 3 always hits the positioning shirt body 15 and the positioning shirt body 15 and the packaged object 3 This is an epoch-making packaging device that does not fall apart, is less likely to be entangled in the vertical sealing process and the cutting process, and dramatically improves the positioning accuracy.

Also, while retracting the positioning shirt body 15, the positioning shutter body 15 is slid in advance to the transport side to open the positioning shutter body 15, and when the positioning shutter body 15 is closed, the positioning shutter body 15 is once moved downward. After that, the shirt is closed, and the positioning shirt body 15 is moved back to the transport side. Therefore, the structure can be designed simply, the operation can be performed efficiently, and the present invention can be easily realized. This is an innovative packaging device with excellent properties. Industrial applicability

According to the present invention, there is provided a method of pulling out a film wound in a roll form, guiding the film, folding the film by a folding mechanism provided in the packaging apparatus, supplying the film to a conveying apparatus, and forming the film into a cylindrical form for packaging. The present invention can be applied to a horizontal plastic packaging apparatus that directly feeds a film that has been formed into two folds in advance and transports the formed film into a tubular shape.

Claims

The scope of the claims

1. It is provided on the loading side of a transport device that continuously transports the film that has been folded back into a folded state with the upper part open while pulling out the roll-like film. A charging section, which is provided in the middle of the transport device, and which closes an upper opening of the film to which the packaged material is supplied to form the film into a tubular shape; A vertical sealing device that is provided at the transport end or on the transport side of the horizontal sealing device and is closer to the transport side than the horizontal sealing device, and that closes a gap between the packaged objects of the cylindrical film to be transported; And a cutting device for cutting the middle part of the seal portion of the film closed by the cutting device to separate the subsequent cylindrical film from the packaging bag containing the article to be packaged on the transport side. The throw A positioning shutter body that can prevent the transport of the packaged object from the entrance to the transport side is provided so as to be able to retreat upward and freely open and close, and the positioning shutter body that opens and closes is reciprocally movable in the transport direction. Packaging characterized by comprising

2. The positioning shutter body is interposed between the folded films on the transport side of the loading position of the loading section to which the packaged material is supplied and on the transporting side of the horizontal sealing device. By moving the positioning shutter body to the front side of the conveyance in a closed state of the shutter, the packaged object can be pushed back and moved to regulate the position of the packaged object with respect to the film. The positioning shutter body is retracted and moved at a predetermined time to open the shirt and evening, and the packaged object is transported together with the film, and the packaged item is transported at a predetermined interval. The packaging device according to claim 1