JP2521042Y2 - Plastic film heat sealer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat sealer capable of efficiently binding superposed plastic films, particularly three or more superposed plastic films.

[0002]

2. Description of the Related Art A spot sealer used for sealing by laminating plastic films made of thermoplastic resin such as polyvinyl chloride resin or polyolefin resin, for example, for sealing the mouth of a bag or a pack container and its lid. As a (point sealer), a spot sealer is commercially available which sandwiches a stacked plastic film between two heated metal pieces and performs thermocompression bonding.

When the number of superposed plastic films is two, there is no problem with such a sealer, but when the number of superposed films is three or more, the plastic film of the intermediate layer is directly heated by the heated metal piece. However, since it is indirectly heated, it takes time to complete the heat sealing, and the degree of heat sealing becomes uneven, which is inconvenient.

There is also a simple stapling method, but in the case of a large amount of processing, replenishment of needles is troublesome, and in stapling, a flammable plastic film and a nonflammable metal needle are combined, Disposal when it becomes waste is troublesome.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a heat sealer capable of efficiently binding superposed plastic films, particularly three or more superposed plastic films.

[0006]

[Means for Solving the Problems] The plastic clip according to the present invention
The film heat sealer consists of the backing plate 1, movable plate 2, and
And a holding plate 16 provided between the receiving plate 1 and the movable plate 2.
One end of the movable plate 2 and the holding plate 16 is one end of the receiving plate 1.
Rotatably attached to the fulcrum provided on the coupling tool 3 installed on the
And the heating means 7 is provided at the other end of the movable plate 2 on the other hand.
The punching needle 8 on the other end of the pressing plate 16 and the receiving plate 1
The receiving holes 18 and 9 are provided at the portions where the needles for punching come into contact,
Moreover, the first spring 6 and the pressing member are provided between the movable plate 2 and the pressing plate 16.
The force between the plate 16 and the receiving plate 1 is weaker than that of the first spring 6.
Second springs 19 are provided respectively.
It

The basic structure of the plastic film heat sealer according to the present invention will be described in detail with reference to FIG. 1. The receiving plate 1, the movable plate 2, and the space between the receiving plate 1 and the movable plate 2 will be described.
The movable plate 2 and the pressing plate
One end of 16 (left end in FIG. 1) is one end of the backing plate 1 (in FIG. 1)
A fulcrum (in Fig. 1) provided on the connector 3 installed at the left end
Separates the fulcrum 4 for the movable plate 2 and the fulcrum 17 for the holding plate 16.
Rotatably attached to the other movable plate.
The other end (the right end in FIG. 1) of 2 is provided with a heating means 7.
Attach the needle 8 to the other end of the holding plate 16 and the receiving plate 1 (right side in FIG. 1).
At the end), the receiving holes 18 and 9 are provided at the portions where the piercing needles come into contact.
Each of them is provided with a first member between the movable plate 2 and the holding plate 16.
Of the first spring 6 between the holding plate 16 and the receiving plate 1.
Second springs 19 having a weaker force are provided.
Symbols 11 and 20 are the receiving plate 9 and the pressing plate 16, respectively.
To hold the plastic film on the
Although it is a rate jig, it is not a constituent of the present invention.
The jig 11 and the jig 20 are also provided with receiving holes for the punching needle 8.
It Electric heating is usually used as the heating means 7. Reference numeral 12 is an electric wire for supplying electricity to the heating means 8. The grip 5 provided on the upper part of the movable plate 2 and the receiving plate 1
The movable plate 2 moves toward the receiving plate 1 by grasping with your hand and applying a gripping force.
I do. When no grip is applied, the movable plate is moved by the action of a spring.
2 and the receiving plate 1 are held in a separated state. Power of spring 19
Is weaker than the force of the spring 6, so install it on the movable plate 2.
When the gripping force is applied by grasping the gripped hand 5 and the backing plate 1 with the hand
First, the pressing plate 16 approaches the receiving plate 1 and the jigs 11 and 20 are
Sandwich the stacked plastic film between
Fix it. The fixed position is the eye on the plastic film.
If it is not the target position, you can relax your grip and try again.
Wear. Once fixed at the target position, it can be moved by applying more grip force
The plate 2 further descends and moves toward the receiving plate 1, and the needle 8 for punching
Penetrate through the laminated plastic films. For perforation
Since the needle 8 is heated by the heating means 7,
The plastic film soaked is opened by a perforating needle 8.
It melts by heating around the perforated hole and integrates at that part. Plastic
Even if there are many stacked sticky films,
The heat melting of the tic film is opened by the piercing needle 9.
Start around the same hole at the same time, so even outside the stack
Even inside, there is no slowdown in melting. Therefore, a uniform and efficient
The sealing of the plastic film can be performed.

FIG . 3 shows the sealed state of the plastic film 13 thus sealed, in which eyelet-shaped sealing portion 15 is formed around the through hole 14 of the piercing needle.

FIG . 2 is a view showing another embodiment of the heat sealer of the present invention, which is a shape in which four sets of the heat sealers having the construction shown in FIG. 1 are arranged in a straight line. With such an arrangement, a plurality of seals can be performed at the same time. The heating means 7 may be provided independently for each of the punching needles 8 or may be provided in common.

FIG . 4 is a view showing a state in which the mouth of a plastic film bag 21 is folded and laminated to form a multi-layered product 22, which is sealed by the heat sealer of the present invention. If the heat sealer having the configuration shown in FIG. 2 is used, such four sealings can be performed all at once. The method of spot-sealing the plastic film bag illustrated in FIG. 4 in which the mouth is folded to form a multilayer structure is suitably used for mushroom cultivation in a culture bag.

The heat sealer of the present invention can be designed to have an arbitrary operation system such as an operation by a grip force, an operation by a mechanical force, and a stepping operation.

[0012]

[Effects of the Invention] Laminated plastic films, especially three or more laminated plastic films can be efficiently bound together, there is no need to supply a sealing material such as a staple, and no foreign matter is mixed. It is easy to dispose of when it becomes a waste.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a basic configuration of a heat sealer of the present invention.

FIG. 2 is a view showing another embodiment of the heat sealer of the present invention.

FIG. 3 is a view showing a sealed state of a plastic film sealed by the heat sealer of the present invention.

FIG. 4 is a view showing a sealed state of a plastic film bag sealed by the heat sealer of the present invention.

Claims (1)

(57) [Scope of utility model registration request] 1. A receiving plate 1, a movable plate 2, and a receiving plate 1 and a movable plate.
2 and the holding plate 16 provided between the movable plate 2 and
And one end of the holding plate 16 is connected to one end of the receiving plate 1.
It is rotatably attached to the fulcrum provided on the tool 3, and
At the other end of the movable plate 2, a perforation needle 8 having a heating means 7,
The other end of the pressing plate 16 and the receiving plate 1 where the needle for punching abuts
The receiving holes 18 and 9 are provided for each of the
The first spring 6 is provided between the holding plate 16 and the holding plate 16 and the holding plate 1
The second spring 19 having a force weaker than that of the first spring 6 between
Are provided for each of the plastic frames.
Film heat sealer.