JP2013237550A - Mechanism used in deep-drawing packaging machine, and deep-drawing packaging machine having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for quickly, easily and safely performing top film or bottom film replacement in a deep-drawing packaging machine, and to provide the deep-drawing packaging machine having the mechanism.SOLUTION: A mechanism is provided to be used in a deep-drawing packaging machine that includes holding claws 1 for holding both side edges of a bottom film 2, and an adhesion device 13 for bonding a top film 12 to the bottom film 2 conveyed while being held between the holding claws 1. Among the holding claws 1 present between a position A where the holding claws 1 first hold the bottom film 2 and a position C where the holding claws 1 reach the adhesion device 13, an arbitrary holding claws 1 are released.

Description

  The present invention relates to a mechanism for allowing a top film and a bottom film to be replaced quickly, simply, and safely in a deep-drawing packaging machine, and a deep-drawing packaging machine having the mechanism.

  Conventionally, as deep-drawing packaging machines used for packaging foods and the like, for example, paragraphs of JP-A-10-129632 (Patent Document 1) and JP-A-2005-225540 (Patent Document 2) [ [0002] to [0009] are known. Such a deep-drawing packaging machine generally holds the bottom film 2 on both side edges by a plurality of holding claws 1 as shown in FIG. It has a device that transports it.

  In FIG. 1, 3 indicates an endless chain to which the clamping claws 1 are fixed, 4 indicates a sprocket on which the endless chain 3 is stretched, and 5 indicates an original roll of the bottom film 2. ing.

  FIG. 2 shows the details of the holding claws 1 and the endless chain 3. As shown in the figure, the nail 1 includes an upper claw 6, a lower claw 7, and a spring 8, and the upper claw 6 and the lower claw 7 are brought into close contact with each other by the biasing action of the spring 8. Thus, the nail 1 is closed and the bottom film 2 is nipped. Further, as shown in FIG. 1, the holding claw 1 has an upper claw 6 and a lower claw at the position of the sprocket 4 by the action of a cam plate (not shown) attached coaxially to the sprocket 4. 7 is open. At this time, as shown in FIGS. 1 and 3, the nail 1 is opened while only the upper nail 6 is moved outward, so that the bottom film 2 can be easily held. Yes.

  By the way, in the deep drawing packaging machine having the above-described configuration, when the new bottom film 2 (new raw roll 5) is to be used by using up the bottom film 2, the end of the old bottom film 2 is used. It is necessary to sandwich the both side edges of the starting end of the new bottom film 2 with the sandwiching claws 1 so that there is no gap between the starting end of the new bottom film 2. This is because when a gap is generated between the end of the old bottom film 2 and the start of the new bottom film 2, a gap is generated between the bottom film 2 and a top film (not shown here), and the package to be manufactured. This is because the yield of the container is lowered.

  And in the deep drawing packaging machine which has the above structures, it is a position which the nail | claw nail | claw 1 open | releases, Comprising: The position where both the side edges of the starting end of the new bottom film 2 are clamped to the nail | claw nail | claw 1 , Only the position where the sprocket 4 is present. Therefore, when the operator who operates the deep drawing packaging machine intends to use the new bottom film 2, the end of the old bottom film 2 appears at the position where the nail 1 is opened (position where the sprocket 4 is present). Stop the packaging machine in a timely manner, and then hold the both side edges of the new bottom film 2 while taking care not to create a gap between the end of the old bottom film 2 and the start of the new bottom film 2. It was necessary to restart the operation of the packaging machine and replace the bottom film 2 so as to be held between the claws 1.

  However, in the deep drawing packaging machine, the bottom film 2 moves at a considerable speed so that the end of the old bottom film 2 appears at the position where the nail 1 is opened (position where the sprocket 4 is present). It is difficult for a skilled worker to stop the operation of the packaging machine in a timely manner. Therefore, at the actual work site, it takes time to align the bottom film 2, and when replacing the bottom film 2, the operation of the packaging machine will be stopped for a while, and the production efficiency will be significantly reduced. There was a problem.

  Moreover, in order not to spend time for alignment of the bottom film 2, in the actual work site, when the end of the old bottom film 2 appears, the operation of the packaging machine is temporarily stopped, The packaging machine is operated so that both ends of the new bottom film 2 are held by the nail 1 so that no gap is formed between the end and the start of the new bottom film 2 with a tape or the like. A method of resuming is also being implemented. However, when this method is implemented, it is necessary to bother to find the packaging container with the tape from the manufactured packaging container and collect the tape, and the work becomes complicated. .

  Further, in some workers who do not like the above-described decrease in work efficiency, the operation of the packaging machine is stopped so that no gap is formed between the end of the old bottom film 2 and the start of the new bottom film 2. However, there are also people who have changed the new bottom film 2 so that both side edges of the new bottom film 2 are held between the holding claws 1 at the expected timing. There was a problem that it was extremely dangerous and could cause an accident to workers.

  Under such circumstances, the inventor of the present application has made extensive studies on devices and methods in order to enable quick, simple and safe replacement of the bottom film in a deep drawing packaging machine. As a result, the inventor of the present application can solve the above-described problems by providing the deep-drawing packaging machine with a mechanism configured to open an arbitrary nail at a specific position. Knowledge has been obtained and the present invention has been created. Moreover, the inventor of the present application has also created an invention that enables quick, simple, and safe replacement of the top film.

  When applying for the present invention, the inventor of the present application investigated past patent documents, etc., and found the following documents regarding the deep drawing packaging machine. The detailed patent literature could not be found.

JP-A-10-129632 JP 2005-225540 A

  The present invention provides a mechanism for enabling quick, simple and safe replacement of a top film and a bottom film in a deep drawing packaging machine, and a deep drawing packaging machine having the mechanism. Objective.

  As a means for that, the mechanism used in the deep-drawing packaging machine according to the present invention is a gripping claw that sandwiches both side edges of the bottom film and a bottom film that is conveyed while being held by the clamping claw. A mechanism used in a deep-drawing wrapping machine having a top film and a top film, wherein the gripping nail first grips the bottom film, and the gripping nail is attached to the bonding device. It is characterized by being configured so that any of the nail claws that will be present between the reaching position and the reaching position can be opened.

  Further, the mechanism used in the deep-drawing packaging machine according to the present invention includes a nail that holds both side edges of the bottom film, and a top film with respect to the bottom film that is conveyed while being held by the nail A mechanism used in a deep-drawing packaging machine having an adhesive device, and in a state where conveyance of the bottom film is stopped, the position where the gripping nail first sandwiches the bottom film, It is also characterized by being configured to open and close any of the holding claws among the holding claws that are between the position where the holding claws reach the bonding device.

  Furthermore, the mechanism used in the deep-drawing packaging machine according to the present invention is a mold that forms a nail that holds both side edges of the bottom film and a bottom film that is conveyed while being held by the nail. A mechanism used in a deep-drawing packaging machine having: a position at which the pinch nail first holds the bottom film; and a position at which the pinch nail reaches the molding apparatus. It is also characterized by being comprised so that arbitrary pinching claws can be open | released among the pinching claws which exist in between.

  A deep-drawing packaging machine according to the present invention is characterized by having the mechanism described above.

  According to the present invention, in a deep drawing packaging machine, a mechanism for allowing a top film and a bottom film to be exchanged quickly, simply, and safely, and a deep drawing packaging machine having the mechanism are provided. be able to.

The figure which shows the apparatus which the conventional deep drawing packaging machine has. The figure which shows the pinching nail | claw 1 and the endless chain 3. FIG. The figure which shows the pinching nail | claw 1 and the endless chain 3. FIG. The schematic diagram of the deep drawing packaging machine 10 with which the mechanism which concerns on embodiment of this invention is applied. The figure which shows the mechanism 14 which concerns on embodiment of this invention. The figure which shows the mechanism 14 which concerns on embodiment of this invention. The figure which shows the mechanism 14 which concerns on embodiment of this invention.

  Hereinafter, the mechanism used in the deep drawing packaging machine according to the present invention and a form for implementing the deep drawing packaging machine having the mechanism will be described. FIG. 4 schematically shows the deep-drawing packaging machine 10 to which the mechanism according to the embodiment of the present invention is applied.

  The deep-drawing packaging machine 10 includes a clamping nail 1 that holds both side edges of the bottom film 2, a molding device 11 that molds the bottom film 2 that is conveyed while being held by the clamping nail 1, and a molding Even after being molded by the apparatus 11, the apparatus has an adhesive device 13 that adheres the top film 12 to the bottom film 2 that is conveyed while being held by the holding claws 1. 4, as in FIGS. 1 to 3, 3 indicates an endless chain, 4 indicates a sprocket, and 5 indicates a raw roll of the bottom film 2.

  Also in this deep-drawing packaging machine 10, as shown in FIGS. 1 to 3, the pinch claw 1 is positioned at the position of the sprocket 4 by the action of a cam plate (not shown) attached coaxially to the sprocket 4. , Only the upper claw 6 is opened while moving outward. In the deep-drawing packaging machine 10, the position A where the nipping claw 1 first holds the bottom film 2 and the position B where the nipping claw 1 reaches the molding device 11 are shown in FIG. In the meantime, a mechanism 14 configured as shown in FIGS. 5 to 7 is installed on the lower side of each of the two endless chains 3 and 3.

  As shown, the mechanism 14 basically includes an opener 15, an air cylinder 16, a feed screw 17, a stepping motor 18, a driver 19, a sequencer 20, a sensor amplifier 21, and a chain position detection. The sensor 22 is configured. The opener 15 moves up and down by the action of the air cylinder 16. The feed screw 17 can move the air cylinder 16 in parallel with the traveling direction of the endless chain 3 by the action of the stepping motor 18 and the driver 19.

  Since the mechanism 14 is configured as described above, the upper side related to an arbitrary nipping claw 1 among the plurality of nipping claws 1 to be present between the position A and the position B in FIG. 4. The bottom surface 6a (see FIGS. 5 to 7) of the claw 6 can be pushed up from the lower side, so that the arbitrary holding claw 1 can be opened.

  In this case, as shown in FIG. 6, the opener 15 preferably has an inclined surface whose tip surface 15a faces the outer side. By configuring the opener 15 in this way, as shown in FIG. 7, the nail 1 is opened while only the upper nail 6 moves outward, and thereby the bottom film 2 is moved to the nail 1. This is because it can be easily held.

  Further, in this case, the movement amount of the feed screw 17 can be arbitrarily determined by the operator by a controller or the like not shown here. Furthermore, the chain position detection sensor 22 detects an intermediate position between the adjacent nail claws 1, and the front end surface 15 a of the opener 15 is suitably below the arbitrarily selected nail 1. As a result, the positioning of the opener 15 is assisted.

  Since the mechanism 14 according to this embodiment is configured as described above, the holding mechanism that exists between the position A and the position B in FIG. 4 in a state in which the conveyance of the bottom film is stopped. Any nail 1 among the claws 1 can be opened and closed. Therefore, in the deep-drawing packaging machine having the mechanism 14, not only the position where the sprocket 4 is opened, but also the position A in FIG. Since the nail 1 can be opened and closed even after the position to be used, the bottom film 2 can be quickly replaced so that there is no gap between the end of the old bottom film 2 and the start of the new bottom film 2. , Simple and safe.

  In the above embodiment, the mechanism 14 is installed between the position A and the position B in FIG. 4. However, the mechanism 14 is positioned at the position A in FIG. You may make it install between the position C to perform. By installing the mechanism 14 at such a position, it is possible to open any nipping claws 1 that will pinch the top film 12. This is because it can be performed quickly, simply and safely so that no gap is formed between the first top bottom film 12 and the starting end of the new top bottom film 12. In this case, in order to be able to open the nail 1 that holds the top film 12, the mechanism 14 has a distance between the bottom film 2 and the top film 12 that is the maximum opening of the nail 1. It is necessary to arrange the opener 15 so as to be present at a position smaller than the width (the distance between the upper nail 6 and the lower nail 7 when the nail 1 is opened to the maximum).

  Needless to say, the mechanism 14 in the above embodiment shows an example of its configuration, and is not particularly limited to the members shown here. The mechanism 14 according to the present invention only needs to be able to open and close any of the nail claws 1 existing at a predetermined position in the deep-drawing packaging machine. If it does, you may be comprised by what kind of well-known components and means.

  According to the present invention, in a deep drawing packaging machine, a mechanism for allowing a top film and a bottom film to be exchanged quickly, simply, and safely, and a deep drawing packaging machine having the mechanism are provided. be able to.

  More specifically, according to the present invention, since the top film and the bottom film can be exchanged at positions other than the position where the nail claw is opened (position where the sprocket 4 is present), time is required for alignment of these films. The top film and the bottom film can be exchanged without lowering the production efficiency even if the operator does not spend a lot of time and does not need a complicated operation and does not perform a dangerous operation.

1: Nipping nail,
2: Bottom film,
3: Endless chain,
4: Sprocket,
5: Raw roll,
6: upper nail,
7: Lower nail,
8: Spring,
10: Deep drawing packaging machine,
11: Molding device
12: Top film,
13: Bonding device
14: Mechanism,
15: Opener
16: Air cylinder,
17: Lead screw
18: Stepping motor,
19: Driver,
20: Sequencer 21: Sensor amplifier,
22: Chain position detection sensor

Claims (4)

Used in a deep-drawing packaging machine having a clamping nail that clamps both side edges of the bottom film and an adhesive device that adheres the top film to the bottom film that is conveyed while being held by the clamping nail Mechanism,
Open any pinch nail among the nail claws that exist between the position where the pinch nail first holds the bottom film and the position where the pinch nail reaches the bonding device. A mechanism used in a deep draw wrapping machine, characterized in that it is configured to be made to be Used in a deep-drawing packaging machine having a clamping nail that clamps both side edges of the bottom film and an adhesive device that adheres the top film to the bottom film that is conveyed while being held by the clamping nail Mechanism,
In a state in which the conveyance of the bottom film is stopped, the holding nail that exists between the position where the nipping nail first holds the bottom film and the position where the nipping nail reaches the bonding apparatus. A mechanism used in a deep-drawing packaging machine, characterized in that it is configured to open and close an arbitrary nail among the claws. A mechanism used in a deep-drawing packaging machine having a clamping nail that sandwiches both side edges of the bottom film and a molding device that molds the bottom film that is conveyed while being held by the clamping nail using a mold. There,
Open any pinch nail among the nail claws that exist between the position where the pinch nail first holds the bottom film and the position where the pinch nail reaches the molding device. A mechanism used in a deep draw wrapping machine, characterized in that it is configured to be made to be   A deep-drawing packaging machine comprising the mechanism according to any one of claims 1 to 3.

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