JPH0347873Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a film bonding device for transparent polyfilm (polyethylene film) and plastic bags used, for example, in the packaging of frozen foods and home freezing. The present invention relates to a gripping device in this film bonding device.

[Technical background of the invention]

As shown in FIGS. 1 and 2, this type of film bonding device that has already been proposed includes an upper plate 1 of a case body (cabinet) having an elongated box shape.
A film storage section 3 for loading a double roll film (a strip-shaped roll film forming a plastic bag) 2 is formed in a, and the double roll film 2 is rotatably mounted in the film storage section 3, A cutter groove 5, through which the cutter 4 reciprocates, is formed in the upper plate 1a of the case body 1, which forms a pull-out passage by rolling out the double roll film 2, and is perpendicular to the pull-out passage, and is adjacent to the cutter groove 5. A seal heater 6 for heating and welding the double roll film 2 is installed in parallel to the upper plate 1a, and on the other hand, the case body 1
A lid 7 is pivotally attached to the upper plate 1a so as to be freely openable and closable, a cutter guide groove 8 is formed in the lid plate 7 located directly above the cutter groove 5, and a cutter guide groove 8 is formed in the vicinity of the cutter guide groove 8. A cushion material 10 for holding the heater and a cushion material 10 for holding the film are arranged side by side on the inside of the film 7.

Therefore, the above-described film bonding apparatus opens the lid 7 and transfers the double roll film 2 from the film storage section 3 to the double roll film storage section 3.
By pulling out a required length and then closing the lid 7, the projection 11 protruding from the inside of the lid 7 allows the lid to be sunk into a part of the case body 1. At the same time, when a switch 6d such as a thermo switch of the seal heater 6 is turned on, the indicator lamp 12 is turned on for a certain sealing time and then turned off, and the double roll film 2 is moved between the heater presser cushion material 9 and the film presser. The seal heater 6 is pressed together with the cushion material 10, and the double roll film 2 is heated and welded in a straight line with the seal heater 6.

In this way, after the indicator lamp 12 goes out, the cutter 4 is slid back and forth once along the cutter groove 5 and the cutter guide groove 8, thereby causing the double roll to come close to the sealing part. The film 2 is cut into a bag.

In this way, the double roll film 2
After forming a bag 2' and storing food, for example, in the bag 2', the opening of the bag 2' is heated by the seal heater 6 as described above. It can be welded and sealed.

[Problems with background technology]

However, the above-mentioned film bonding device
When food is stored in a bag and the opening of the bag is sealed, air also flows in as the food is stored, so the entire bag becomes bulky and large due to the amount of air that has flowed in. Not only does this limit the storage capacity of the bag and the freezer, but when sealing the opening of the bag, the user is forced to hold the bag with one hand, making it difficult to sufficiently exhaust air from the bag and seal it. Have difficulty.

[Purpose of invention]

The present invention has been developed in view of the above-mentioned circumstances, and it heats the opening of the bag without holding the bag with one hand when sealing the opening of the bag containing food. It is constructed so that it can be welded.

[Summary of the idea]

The present invention is a film bonding device equipped with a cutter and a seal heater, in which a film storage section capable of storing a double roll film is formed on the upper plate of the case body, and the above-mentioned double roll film is provided on the upper plate near the film storage section. A pair of film holding members having a gripping habit for heavy roll film are provided in a freely undulating manner.

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment. In addition, the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

In FIGS. 3 to 12, reference numeral 1 denotes a case body in the form of an elongated box, and the upper plate 1a of this case body 1 is covered with a double roll film (a belt-shaped double roll film forming a plastic bag). A film storage section 3 into which a film (film) 2 is loaded is formed, and the double roll film 2 is rotatably provided in this film storage section 3. Further, on the upper plate 1a of the case body 1, which forms a pull-out passage by rolling out the double roll film 2, a cutter groove 5, in which the cutter 4 reciprocates, is formed perpendicular to the pull-out passage. Seal heaters 6 for heating and welding the double roll film 2 are arranged in parallel on the upper plate 1a close to the cutter groove 5.

Note that, as shown in FIG. 6, this seal heater 6 has a tape-shaped heat insulating material 6a on the upper plate 1a.
A heater 6b and a heat-resistant tape 6c are attached to the heat insulating material 6a.

On the other hand, a lid 7 formed to cover the upper plate 1a of the case body 1 is pivotally attached to the upper plate 1a by hinges 13 so as to be freely openable and closable, and the cutter groove 5
A cutter guide groove 8 is formed in the lid body 7 located directly above the cutter groove 5 . Further, on the inner side of the lid body 7 near the cutter guide groove 8, a heat-resistant heater holding cushion material 9 and a film holding cushion material 10 are arranged in parallel. When the lid body 7 is closed, the material 9 is pressed against the seal heater 6 via the unfolded double roll film 2, and the material 9 is pressed against the seal heater 6 through the developed double roll film 2, and the material 9 is pressed against the seal heater 6 by the cooperation of the seal heater 6 and the heater holding cushion material 9. The heavy roll film 2 is heated and welded. moreover,
A projection 11 is vertically provided on a part of the inner side of the lid 7, and a switch 6d for the seal heater 6 is installed on the upper plate 1a of the case body 1 located directly below the projection 11. It is submerged. Furthermore, in the case body 1 near this switch 6d,
After the indicator lamp 12 lights up for a certain period of time,
It is attached so that it turns off.

On the other hand, a film presser metal fitting 14 is rotatably attached to the base of each hinge 13 so as to press the double roll film 2 from above.
As shown in FIG. 8, a pair of film holding members 15 are attached to the upper plate 1a of the case body 1 close to the front edge 14a of the film holding fitting 14, and the film holding members 15 have a tendency to fall down due to the elasticity of a coil spring 16. It is provided by energizing it. That is, the base portions 15a of both film holding members 15 are pivotally connected to a bracket formed on a part of the upper plate 1a by means of a pin shaft 17. The presser rod 18 extends into the case body 1 through the upper plate 1a, and a stop washer 18a is attached to the lower part of the presser rod 18.
A coil spring 16 is resiliently interposed between the upper plate 1a and the upper plate 1a. Further, the film pressing surface 15b of each of the film pressing members 15 is provided with the upper plate 1.
It is attached so that it can fit into the small hole 19 drilled in the hole 19a.

On the other hand, on the upper plate 1a of the case body 1 located between the film holding members 15, a vacuum suction pipe 20 having an L-shaped cross section is provided, as shown in FIGS. 9 and 10. , so that it can be inserted into the opening of the double roll film 2, and the elasticity of the coil spring 21 urges the lodging habit.

That is, as shown in FIG. 11, the vacuum suction pipe 20 has its base 20a rotatably attached to each bracket 22 formed in a part of the upper plate 1a by a support shaft 23. The base portion 20a is
and a receiving member 1b attached to the back surface of the upper plate 1a.
A coil spring 21 is connected to the vacuum suction pipe 2 between
0 with lodging habit. A locking pin 20c is attached to the film pressing surface 20b of the vacuum tube 20 so as to fit into a small hole 24 formed in the upper plate 1a. moreover,
A flexible bellows 25 is attached to the outer periphery of each of the brackets 22 and the base 20a of the vacuum suction pipe 20 to prevent air leakage. teeth,
As shown in FIG. 9, a suction flow path 36 is formed divided by a partition plate 37, and this suction flow path 36 includes a fan motor 34 and an exhaust port 38.
is provided.

Next, the electric circuit shown in FIG. 12 is a circuit diagram incorporated in the present invention, and this electric circuit is
Power supply circuit 2 including a power supply 26 and a capacitor 27
8 is provided with a power switch 29 and a transformer 30,
A seam heater 6 and an indicator lamp 12 are provided in parallel in a power supply circuit 31 on the secondary side of this transformer 30, and a thermistor switch 6d is provided near the indicator lamp 12. A fan motor 34 equipped with a diode 33 and a capacitor 35 are provided, and a changeover switch 32 is attached to the fan motor 34 and the power supply circuit 31 near the switch 6d.

Therefore, by opening the lid 7, pulling out the double roll film 2 by the required length from the film storage section 3, and then closing the lid 7, the lid 7 can be removed. The switch 6d of the seal heater 6 has a protrusion 11 sunk in the case body 1.
At the same time as the indicator lamp 12 is turned on, the indicator lamp 12 is turned on for a certain period of time and then turned off. At this time,
The double roll film 2 is pressed against the seal heater 6 using a heater holding cushion material 9 and a film holding cushion material 10, and the double roll film 2 is heated and welded to form a linear seal portion. .

Next, after the indicator lamp 12 goes out, the cutter 4 is slid back and forth once along the cutter groove 5 and the cutter guide groove 8, thereby removing the double roll film 2 near the sealing portion. Cut it into a bag 2'.

Next, as shown in FIG. 7, after storing the food F, for example, both ends of the opening 2a' of the bag body 2' are elastically gripped by the pair of film pressing members 15. At the same time, the vacuum suction pipe 20 is inserted into the opening 2a' of the bag 2' to elastically grip a part of the bag 2'.

Thereafter, by turning on the changeover switch 32, the fan motor 34 is driven, so that the air flowing into the bag body 2' is sucked through the vacuum suction pipe 20 and communicated with the vacuum suction pipe 20. The food F is discharged from the exhaust port 38 through the suction channel 36, so that the food F is stored in close contact with the inside of the bag 2'.

Next, by switching the changeover switch 32 again and closing the lid 7, the protrusion 11 of the lid 7 turns on the switch 6d sunk in the case body 1, and at the same time the indicator lamp 12 is turned on.
The lamp lights up for a certain period of time and then turns off.
At this time, the opening 2a' of the bag body 2' can be pressed against the seal heater 6 and heat-welded with a heater holding cushion material 9 and a film holding cushion material 10.

At this time, the bag body 2a' containing the food F is
Since the bag 2' is held by the pair of film holding members 15, there is no need to hold the bag 2' by hand.

Incidentally, although the above-mentioned specific example has been described as a type that can be operated by placing it on a desk, it may be designed to be used as a wall-mounted type, for example, within the scope of the gist of the present invention. You are free to make changes.

[Effect of idea]

As described above, according to the present invention, the cutter 4
In the film bonding apparatus equipped with a seal heater 6, a film storage section 3 capable of storing a double roll film 2 is formed on the upper plate 1a of the seal main body 1, and the upper plate 1a near the film storage section 3 is formed.
Since a pair of film pressing members having a gripping habit are provided in a freely undulating manner on the double roll film 2, the bag can be held by hand when sealing the opening of the bag containing food. Not only can the openings of bags and double-rolled films be heat-welded, but handling is also easier.
This has practical effects such as improving the seal finish.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the already proposed film bonding device, FIG. 2 is a perspective view showing the lid of the film bonding device in an open state, and FIG. 3 is a perspective view of the film bonding device of the present invention. FIG. 4 is a perspective view showing the lid of the present invention in an open state, and FIG.
FIG. 6 is an enlarged sectional view taken along the chain line A-A in the figure.
FIG. 5 is an enlarged sectional view of chain circle B, FIG. 7 is a perspective view for explaining the operation of the present invention, and FIG. 8 is a
FIG. 9 is an enlarged sectional view taken along chain line C-C in FIG. 7, FIG. 9 is a sectional view showing how the vacuum suction pipe according to the present invention is installed, and FIG. FIG. 11 is an enlarged sectional view of the chain circle E in FIG. 9, and FIG. 12 is an electric circuit diagram incorporated in the present invention. 1...Case body, 2...Double roll film, 3...Film storage section, 4...Cutter, 6
... Seal heater, 7 ... Lid body, 9 ... Cushion material for holding heater, 10 ... Cushion material for holding film, 15 ... Film holding member, 16 ...
Coil spring, 17...pin shaft, 18...presser rod,
19...Small hole.

Claims (1)

[Claims for Utility Model Registration] 1. In a film bonding device equipped with a cutter and a seal heater, a film storage section capable of storing a double-roll film is formed on the upper plate of the case body, and the above-mentioned area near the film storage section is A film bonding device characterized in that a pair of film pressing members having a gripping habit for the double roll film are provided on the upper plate in a freely undulating manner. 2. The film bonding device according to claim 1, which is characterized in that engaging protrusions are formed on the film pressing surfaces of both film pressing members.