WO1998004458A1

WO1998004458A1 - Packaging apparatus

Info

Publication number: WO1998004458A1
Application number: PCT/JP1997/002664
Authority: WO
Inventors: Tohru Hirasawa
Original assignee: Nippon Seiki Co., Ltd.
Priority date: 1996-07-31
Filing date: 1997-07-30
Publication date: 1998-02-05
Also published as: JP3045278B2; JPH1045103A; CN1104359C; KR19990044136A; KR100271332B1; CN1198139A

Abstract

A packaging apparatus comprising a transfer unit (11) adapted to transfer a packaging bag (12) containing an object article (3) which has been cut off from a subsequent tubular film (1) is provided on the output side of a conveying unit (2), i.e., on the downstream side of a position in which a vertical sealing unit (6) and a cutting unit (7) are provided, an end transfer section (2B) spaced from the upstream transfer section (2A) is provided at a transfer end portion of the conveying unit (2), the end transfer member (2B) at the transfer end portion of the transfer unit (2) is movable toward and away from the conveying unit (11). The apparatus is further provided with a longitudinally movable unit (13) for moving the end transfer member (2B) of the transfer unit (2) backward with respect to the transfer direction when the operation of the vertical sealing unit (6) or the cutting unit (7) is stopped, and forward to the transfer unit (11) when the vertical sealing unit (6) and cutting unit (7) are in a released state.

Description

Description Packaging equipment Technical field

TECHNICAL FIELD The present invention relates to a packaging apparatus for successively wrapping articles to be packaged in a film while making the film into a tubular shape. Background art

As a general type of horizontal packaging device for this type of packaging device, a transport device feeds the packaged material at predetermined intervals while forming the film to be transported into a cylindrical shape, and then forms a two-fold overlapping portion of the film. Is heat-sealed in a tubular shape by a horizontal sealing device, and then, after vertically heat-sealing the objects to be packaged, the cutting device cuts the heat-sealed portion of the film and transports the packaging bag.

At this time, when the size of the packaged object is relatively small, or when the film is thick and the rigidity is high, the packaging bag separated by the cutting device may be unloaded in a stable state by a transport device. It is possible, but there is a problem that the bulky packaged material swells when packaged with a film, and the appearance and packaging form are deteriorated.

For this reason, as a means to cleanly pack the contents to be packaged while improving the packaging form, and to wrap the bulky objects to be packaged, the sides of both ends of the film are folded inward to form a gusset. In some cases, the packaging bag is heat-sealed after completion.

In this case, as proposed in, for example, Japanese Patent Publication No. 3-66207, the film is sucked and held so that the film does not wrinkle or shift during gusset shaping. Although gusset-shaping means is provided, the suction device, which is a mechanism for holding the film, becomes large-sized and the mechanism tends to be complicated. However, there is still a problem that the whole packaging equipment becomes large and the cost becomes high. Have been.

On the other hand, in the conventional packaging device, a transfer carrier device for further feeding the detached packaging bag containing the article to be packaged is provided in a continuous state on the transport side of the transport device, and generally the vertical sealing device and the cutting device are provided. Is a device that opens and closes (moves) so as to divide the transport direction, so this transfer device cannot simply extend the transport device as it is, and therefore, divides this transport route. Thus, the vertical sealing device and the cutting device must be provided.

That is, to explain in a simple example, the cutting device or the like that opens and closes in the vertical direction is disposed at the transfer end of the transfer device, and is separated from the end of the transfer device by a predetermined distance via the cut device. Since the transfer device must be provided, the transfer device and the transfer device may not be able to smoothly transfer the packaging bag between the transfer device and the transfer device. The upper and lower parts are arranged so that they are superimposed, so that the cut and separated packaging bags fall and transfer, and a separate transfer assist mechanism is added to improve the transfer. There was also the problem of having to do it.

In particular, when the packaged material is heavy or the bottom is easily caught, the transfer cannot be performed smoothly, and there is a risk that the conveyance and discharge may be hindered.

The present invention has found that the conventional packaging apparatus has such a problem, and it is possible to form a gusset while maintaining a bulky object to be packaged in a stable state with a simple configuration and improve the packaging form. It is another object of the present invention to provide a packaging device capable of easily transporting a packaging bag containing an article to be packaged. Disclosure of the invention

In the middle of a transport device 2 for continuously transporting the film 1 in a folded state with the upper part opened, a loading unit 4 capable of loading the packaged objects 3 at predetermined intervals into the film 1, A horizontal sealing device 5 for closing the upper opening of the film 1 into which the package 3 is loaded and forming the film 1 in a cylindrical shape; and A vertical sealing device 6 for closing the package 3 of the film 1 between the packages 3 and a seal of the film 1 closed by the vertical sealing device 6 A cutting device 7 that cuts the middle part of the portion to separate the subsequent tubular film 1 from the packaging bag 12 containing the articles 3 to be packed on the transport side. A transfer device 11 for unloading and transporting the packaging bag 12 containing the packaged object 3 separated from the transfer device 11 is moved toward the delivery direction side of the transport device 2 with the position where the vertical sealing device 6 and the cutting device 7 are provided as boundaries. The transfer device 2 is provided with a terminal transfer portion 2B at the transfer end of the transfer device 2 in a state separated from the transfer portion 2A at the front, and the transfer end device 2B at the end portion of the transfer device 2 is connected to the transfer transfer device 11. When the vertical seal device 6 or the cutting device 7 is closed, the terminal transfer portion 2B of the transfer device 2 is moved forward in the transfer direction. Retract and move, the vertical sealing device 6 and the cutting When the device 7 is opened, the forward / backward movement device 13 for moving the terminal conveyance unit 2B of the conveyance device 2 toward the transfer conveyance device 11 on the conveyance direction side is provided, so that the package separated by the cutting device 7 is provided. The packaging bag 12 containing the object 3 is transferred from the transfer device 2 to the transfer transfer device 11 and transferred, but is transferred so as not to obstruct the operation when the vertical sealing device 6 and the cutting device 7 are closed. When the terminal transport section 2B of the transport apparatus 2 escapes to the front in the transport direction with respect to the apparatus 11, completes this operation, and the vertical sealing device 6 and the cutting device 7 are opened to receive and transport the separated packaging bag 12. On the other hand, the terminal transfer unit 2B of the transfer device 2 moves closer to the transfer transfer device 11 on the contrary.

Therefore, even if the transfer device 2 and the transfer device 11 are arranged in a separated state in order to arrange the vertical sealing device 6 and the cutting device 7 that perform opening and closing operations, the terminal transfer of the transfer device 2 with respect to the transfer device 11 is performed. Due to the relative movement of the part 2B, the operation of the vertical sealing device 6 and the cutting device 7 is not hindered, and the transfer distance for discharging can be satisfactorily achieved by narrowing the separation distance. Become.

In addition, the terminal transfer unit 2B of the transfer device 2 moves closer to the transfer transfer device 11 to ensure transfer transfer, and the terminal transfer unit 2B of the transfer device 2 that moves closer to the transfer transfer device 11 moves in the transfer direction. Therefore, the movement of the terminal transport section 2B does not hinder the transfer of the packaging bag 12 containing the articles 3 to be transported. For example, the vertical sealing device 6 and the cutting device 7 After the operation, the approaching movement of the end transport section 2B and the transport drive of the end transport section 2B of the transport apparatus 2 and the transfer transport apparatus 11 are temporarily performed to some extent. In other words, even if the terminal transport section 2B of the transport device 2 moves closer while driving the transport, there is little difficulty in transfer, and therefore the transport speed can be increased, thereby improving the bag making efficiency.

Further, in the packaging device, a gusset device 9 that forms a pair from a side portion before and after in a carrying direction of the vertical sealing device 6 and the cutting device 7 and folds a side portion of the tubular film 1 inward 9 In addition, by providing film holding devices 8 and 10 for holding the cylindrical film 1 before and after the longitudinal sealing device 6 and the cutting device 7 in the carrying direction, the packaged object 3 is provided. The stored tubular film 1 is pressed and held by the film pressing devices 8 and 10, and is folded inward by the gusset device 9.

Further, the film holding device 10 provided on the transport side of the vertical sealing device 6 and the cutting device 7 with respect to the transport direction is provided with a soft pressing member 10D, respectively. The degassing mechanism V that presses and deaerates the package 1 even if it is a bulky package 3 because the film 1 adheres to the package 3 and is deaerated. It is possible to suppress movement inside the package, and there is an effect that packaging can be performed without damaging the packaged object 3. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic configuration side view of the present embodiment, FIG. 2 is a schematic configuration plan view of the embodiment, and FIG. 3 is an enlarged explanatory perspective view of a main part of the embodiment. FIG. 4 is an enlarged side view of the main part of the present embodiment immediately before the seal closing and cutting processing is started, and FIG. 5 is an enlarged explanatory view of the vertical seal of the present embodiment and the main part during cutting processing. FIG. 6 is an enlarged explanatory side view of a main part of the present embodiment at the start of transfer transfer, and FIG. 7 is an enlarged explanatory rear view of a main part of the present embodiment. BEST MODE FOR CARRYING OUT THE INVENTION

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

The V-shape is provided to a transport guide section 14 for transporting the heat-sealable strip-shaped film 1 continuously pulled out from the supply section in a folded state with the upper part opened. A transport device 2 for transporting the film 1 is provided, and an opening guide section for transporting the V-shaped film while holding the upper left and right edges of the V-shaped film at a predetermined length is provided as the input section 4 in the transport guide section 14. A package 3 such as a mushroom is loaded into the film 1 at a predetermined interval from the loading section 4, and the upper opening of the film 1 in which the package 3 is stored is closed with a polymerization seal to form a cylinder. An ultrasonic welding type horizontal sealing device 5 is provided for forming the film 1 of the present invention, and a portion of the tubular film 1 between the packages 3 to be packaged which is intermittently transported by the transport device 2 is divided. A vertical sealing device 6 that closes the overlapped seal so that the sealing portion is closed, and a cutting device 7 that cuts the middle part of this sealing portion to separate the subsequent tubular film 1 and the packaging bag 12 containing the package 3 on the transport side. Is provided at the transfer end of the transfer device 2, and the vertical seal is provided. Actuating the the location 6 and the cutting device 7 has a configuration for the conveying and discharging the objects to be packaged 3-cored hull Sobukuro 12.

That is, the transporting device 2 intermittently transports the cylindrical film 1 containing the article 3 to be packaged, and the vertical sealing device 6 separates the package 3 behind and the package 3 forward into the film 1 in a partitioned state. The sealed packaging bag 12 containing the packaged articles 3 is discharged to the transport side while being sealed and cut by the cutting device 7, and the leading end of the subsequent cylindrical film 1 is closed.

Then, it is intermittently conveyed again, and by repeating this operation, the packaged objects 3 are automatically packaged one after another by a predetermined amount.

Also, in order to keep the packaging form of the bulky packaged material 3 good, before the vertical seal is closed, the gusset claw 9A is attached to the vertical sealing device 6 and the cylindrical film slightly before the cutting device 7. A gusset device 9 is provided which pushes in and retracts from both side surfaces of 1 and retracts the side portion of the cylindrical film 1 inward (giving gussets).

Further, a film pressing device 8 is provided slightly forward of the vertical sealing device 6 and the cutting device 7 to press the cylindrical film 1 from outside by projecting toward the cylindrical film 1. ing.

In the film holding device 8, a pressing plate 8A is provided at the tip of an advancing / retracting rod 8C of a cylinder device 8B, and the advancing / retracting rod 8C protrudes toward the cylindrical film 1, so that the pressing plate 8A 1 It is configured to hold down the outer surface and hold down the film 1 to shape it. The film pressing device 8 is provided on both the left and right sides and the upper part with respect to the transport direction of the film 1 so as to press the film 1 from the left and right directions and the vertical direction.

That is, before the cylindrical film 1 conveyed intermittently is subjected to the vertical sealing process, the cutting process, and the gusset process, the pressing plate 8A protrudes inward from both left and right directions, and the pressing plate 8A is also pressed from above. Projecting downward, the film 1 is pressed by the left and right pressing plates 8A in the left and right direction, and the upper pressing plate 8A and the lower support in the vertical direction, and the present embodiment is shaped into a square. .

A gusset device 9 is provided on the left and right sides of the vertical sealing device 6 and the cutting device 7 slightly forward of the portion pressed and shaped by the film pressing device 8 and slightly forward of the vertical sealing device 6 and the cutting device 7. A gusset is provided by a gusset device 9 and then closed and cut by the vertical sealing device 6 and the cutting device 7. Accordingly, since the above-described processing is performed in a state in which the cylindrical film 1 is shaped by the pressing by protruding from the left and right directions and the vertical direction, each processing can be performed satisfactorily. The packaged object 3 is also positioned and held at the center by the shaping, and the tubular film 1 itself is also positioned, so that each of the above-described processes is improved.

Further, a second film pressing device 10 for pressing the cylindrical film 1 from the upper side and the left and right directions is provided on the transport side of the vertical sealing device 6 and the cutting device 7.

The second film pressing device 10 is a deaeration mechanism V in which a pressing plate 10A is provided at the tip of an advancing and retracting rod 10C of a cylinder device 10B, and a soft pressing member 10D such as a sponge is disposed on the pressing plate 10A. When the reciprocating rod 10C protrudes toward the cylindrical film 1, the soft pressing member 10D presses the outer surface of the film 1 accommodating the packaged object 3 from three directions in the same manner as the first film pressing device 8. The vertical sealing and cutting of the film 1 are performed in a state where the air present in the packaging bag 12 is expelled.

By doing so, in the case of performing the vertical sealing step and the cutting step of the cylindrical film 1 and further forming the gusset, the above-described film holding device 8 and the second With the film holding device 10 of the present invention, the packaged material 3 located before and after the vertical sealing device 6, the cutting device 7, and the gusset device 9 is pressed together with the film 1 and positioned and held, so that each process can be performed well. .

The second film pressing device 10 is configured to cut and discharge the evacuated bag 12 containing the article 3 to be evacuated.

In the present embodiment, the present invention is applied to such a packaging apparatus, and an embodiment of a main part of the present invention will be further described.

The transfer device 11 for receiving and supporting the packaging bag 12 containing the article 3 to be packaged separated from the subsequent tubular film 1 and transporting the received and supported packaging bag 12, includes the vertical sealing device 6 and It is disposed on the side of the transfer device 2 in the sending direction with the position where the cutting device 7 is provided as a boundary.

A part of the transfer device 2 is configured to move toward and away from the transfer transfer device 11 by an advancing and retreating device 13, and when the operation of the vertical sealing device 6 or the cutting device 7 is closed, the transfer device 2 is closed. A retreating device 13 that retreats a part of the conveying device toward the conveying direction and moves a part of the conveying device 2 closer to the transfer device 11 in the conveying direction when the vertical sealing device 6 and the cutting device 7 are opened. Has been established. .

That is, when the vertical sealing device 6 or the cutting device 7 is operated, a part of the transport device 2 retreats relatively toward the transport direction with respect to the transfer transport device 11, and the vertical sealing device 6 and the cutting are performed. At the time of opening when the device 7 does not operate and does not hinder the transfer, a part of the transport device 2 moves relatively close to the transfer device 11, and the packaging bag 12 containing the article to be packaged 3 is transported from the transport device 2 side. To device 11

It is configured to be transported.

More specifically, an end transfer section 2B of a support transfer type is provided at a transfer end of the transfer apparatus 2 in a state separated from the film-hanging transfer type transfer section 2A, and the end transfer of the transfer apparatus 2. The end transfer section 2B is configured to be movable toward and away from the transfer apparatus 11 when the vertical seal device 6 or the cutting apparatus 7 is closed by the advance / retreat movement apparatus 13. 2 is retracted (returned) to the front side in the conveying direction, and the vertical sealing device 6 and the cutting device 7 are moved. At the time of opening, the terminal transfer unit 2B of the transfer device 2 is configured to move closer to the transfer transfer device 11 on the transfer direction side.

In the present embodiment, a pair of unloading rollers 29 for suspending and transporting the upper part of the two-folded film 1 and a U-shaped receiver for sending out the packaged articles 3 in a mounted state along the unwinding direction of the cylindrical film 1 The plate 30 constitutes the front transfer section 2A, and the terminal transfer section 2B is disposed in a state of being connected to the transfer section 2A.

Further, the terminal transfer section 2B and the transfer transfer apparatus 11 of the transfer apparatus 2 are constituted by a bearing transfer type belt conveyor device.

Therefore, a terminal conveyor 2B composed of a belt conveyor device in which the terminal portion of the transport device 2 is separated and independent, and a belt conveyor device for transferring to the end of the terminal conveyor 2B composed of the belt conveyor device in a separated state. The vertical transfer device 11 and the cutting device 7, which open and close vertically, are disposed between the terminal transfer portion 2B and the transfer device 11 in a continuous state. The transfer device 11 is fixed, and the terminal transfer portion 2B at the terminal portion of the transfer device 2 is moved toward and away from the transfer device 11 by the advance / retreat device 13. The forward / backward moving device 13 of the present embodiment is provided with a cylinder device 13A for driving the forward / backward movement of the terminal transport unit 2B composed of a belt conveyor device. The operation of the cylinder device 13A causes the terminal transport unit 2B composed of a belt conveyor device to move (see FIG. (Not shown) It is configured to move forward and backward along the guide rail.

Therefore, even if the terminal transfer section 2B of the transfer device 2 and the transfer transfer device 11 are arranged in a separated state in order to dispose the vertical sealing device 6 and the cutting device 7 that perform the opening and closing operation, the transfer transfer device 11 can be provided. Relative movement of the terminal transport unit 2B with respect to the vertical sealing device 6 and the cutting device 7 does not hinder the operation, and the transfer distance for discharge can be satisfactorily achieved by narrowing the separation distance. Becomes

In addition, the terminal transfer unit 2B of the transfer device 2 moves closer to the transfer transfer device 11 to ensure transfer transfer, and the terminal transfer unit 2B of the transfer device 2 that moves closer to the transfer transfer device 11 moves in the transfer direction. Therefore, the movement of the terminal transport section 2B does not hinder the transfer of the packaging bag 12 containing the articles 3 to be transported. For example, the vertical sealing device 6 and the cutting device 7 After the operation, the end transport section 2B moves closer and the transport device 2 ends. Even if the transport of the end transport unit 2B and the transfer transport device 11 is performed at the same time, that is, even if the terminal transport unit 2B of the transport device 2 moves close to the transport device 2 while the transport drive is being performed, the transfer transport is not affected. Therefore, the transfer speed can be increased, and the bag making efficiency is improved.

In the above-described embodiment, the transport unit 2A on the front side of the transport device 2 is configured to be suspended and transported by the unloading roller 29 and the receiving plate 30, but the transport unit 2A is also a terminal transport unit 2B. In the same manner as described above, a belt conveyor device may be provided so as to be connected to the terminal transport unit 2B.

Since the present invention is configured as described above, it does not hinder the operation of the vertical sealing device and the cutting device, so that the transfer for carrying out can be performed well, and the gusset is shaped and the packaging can be performed neatly. In addition, it is possible to provide an epoch-making packaging device that can perform good degassing. Industrial applicability

The present invention relates to a method in which a film wound around a roll is pulled out and guided, folded in two by a folding mechanism provided in a packaging device, supplied to a transport device, and formed into a cylindrical shape and packaged. The present invention can be applied to a horizontal piling machine that feeds a folded film directly to a transport device, and forms and packs it into a tubular shape.

Claims

The scope of the claims

1. In the middle of a transport device that continuously transports a film folded in two with its upper part opened, a loading unit capable of loading a package at a predetermined interval into the film; A horizontal sealing device that closes an upper opening of the loaded film and forms the film into a cylindrical shape, and a packaged material of the cylindrical film to be transported and a packaged material at a transport end portion of the transport device. A vertical sealing device that closes the gap, and a cutting that cuts the middle part of the sealed portion of the film closed by the vertical sealing device and separates the subsequent tubular film from the packaging bag containing the package on the transport side. A transfer device for carrying out and transporting the packaging bag containing the article to be packaged which has been cut off from the subsequent tubular film, at a position where the vertical sealing device and the cutting device are provided. The transfer device is disposed on the sending side of the transfer device at a boundary, and a terminal transfer unit is provided at a transfer end of the transfer device so as to be separated from a previous transfer unit. When the vertical seal device or the cutting device is closed, the terminal transport portion of the transport device is retracted to the front side in the transport direction when the vertical sealing device or the cutting device is closed. And a packaging device characterized in that when the cutting device is opened, the terminal transport portion of the transport device is moved closer to the transfer device on the transport direction side.

2. A gusset device which forms a pair from a side portion before and after in a transport direction of the vertical sealing device and the cutting device, and gusset device for folding a side portion of a cylindrical film inward is provided. The packaging device according to item 1.

3. The package according to claim 1, wherein a film pressing device for pressing the cylindrical film is provided before and after the vertical sealing device and the cutting device in the transport direction, respectively. apparatus.

4. The film holding device provided on the transport side of the vertical seal device and the cutting device with respect to the transport direction is provided with a soft pressure member. 4. The packaging device according to claim 3, wherein the packaging device is configured as a degassing mechanism for pressing and degassing a film.