JP2002255246A - Air cushioning material bag making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cushioning material bag making machine which can manufacture an air cushioning material by a simple mechanism, and is miniature and light weight. SOLUTION: This air cushioning material bag making machine has a roll housing section 30, an air injecting/heat-welding section, and a bar-shape member 70. In this case, the roll housing section 30 can house a wound roll of a tube-shaped resin film. The air injecting/heat-welding section welds the resin films. The bar-shaped member 70 has a circular cross section which can be inserted between the top and bottom resin films. The bar shaped member is inserted in the resin films, arranged between the roll housing section and the air injecting/heat-welding section, and separates the upper film section and the lower film section. The air injecting/heat-welding section is equipped with an air discharging tube 23 and a pair of linear heaters 26 and 27. In this case, the air discharging tube 23 penetrates the upper film section and discharges compressed air from the distal end section. The pair of linear heaters 26 and 27 weld the upper and lower film sections to each other. The compressed air which is discharged from the air discharging tube into a space between the upper and lower film sections is filled in the resin films located ahead of the air injecting/ heat-welding section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cushion material bag making machine, and more particularly, to a small and lightweight air cushion material bag making machine capable of manufacturing an air cushion material with a simple mechanism. It is about.

[0002]

2. Description of the Related Art As a cushioning material for packaging and a shock absorbing material utilizing a shock-absorbing action of air elasticity, an air cushioning material generally called an air cushion or an air packing is widely used.

[0003] This type of air cushioning material has a structure in which air is sealed between two resin films. The air cushioning material is
It is mass-produced by an industrial bag making machine equipped with an automatic resin film feeding device, a resin film welding device, an air sealing device and the like.

[0004]

However, this type of bag making machine is a complicated large-sized machine installed in a factory for manufacturing air cushioning materials, and is a system for continuously producing a large amount of air cushioning materials standardized in advance. belongs to. For this reason, the user's office or home, for example, various sales offices of a shipping company, various small goods manufacturing or sales offices, small appliance manufacturing or sales offices, etc., general households, etc. Cannot produce such an air cushioning material.

[0005] In the product distribution channel, if necessary,
It is always necessary to properly pack products, etc. and pack them for safe transportation, but if appropriate air cushioning materials are not available, at present, cardboard or newspaper etc. should be filled between the product and the packaging box. I have to deal with this in a way.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a small and lightweight air cushion material bag making machine capable of manufacturing an air cushion material with a simple mechanism. Is to do.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an air cushioning bag making machine for producing an air cushioning material in which air is sealed, which can accommodate a winding roll of a tubular resin film. A roll accommodating portion, an air injection / heat welding portion for welding the resin film, and a rod-shaped member having a circular cross section that can be inserted between upper and lower resin films, wherein the rod-shaped member is inserted inside the resin film. In the state, it is disposed between the roll storage unit and the air injection and heat welding unit,
The upper film portion and the lower film portion of the resin film fed from the winding roll of the roll accommodating portion are separated from each other, and the air injection / heat welding portion is a pair of front and rear linear heaters for mutually welding the upper and lower film portions. And an air discharge pipe that penetrates the upper film portion between the heaters and discharges compressed air from the front end portion. -Filled in the resin film located in front of the heat welded part, the upper and lower film parts located in the air injected and heat welded part are mutually welded by the linear heater to seal the air filled in the resin film. An air cushion material bag making machine characterized by forming a possible linear welded portion on a resin film.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an air cushioning bag making machine according to the present invention will be described below in detail with reference to FIGS. FIG. 1 is a perspective view showing the entire configuration of the air cushioning bag making machine of the present invention.

The air cushioning material bag making machine 1 is provided with
And a tubular resin film W
And an air injection device 50 for injecting air into the resin film W, and a cylindrical body 70 inserted between the upper and lower resin films W1: W2. The resin film W is used as a winding roll R,
0. The resin film W has a thickness of 5 to 10 μm.
It is made of a resin film which can be thermally welded to a certain degree, for example, a PP resin film or a PE resin film.

The main body section 32 includes a switch 33 and display sections 34 and 39. The roll housing section 30 includes
2, and accommodates the winding roll R in a freely rotatable manner. One end of the air injection device 50 is pivotally attached to the heat welding device 20 via the hinge portion 60. An air supply unit 52 is provided at the center of the air injection device 50.

FIG. 2 is a perspective view conceptually showing a state where the cylindrical body 70 is inserted into the resin film W, and FIG. 3 is a longitudinal sectional view showing the structure of the air cushioning material bag making machine 1. As shown in FIG. 2, the cylindrical body 70 is inserted into the tubular resin film W, and separates the upper and lower resin films W1: W2 from each other. The cylindrical body 70 is made of a magnetic metal integrally molded product.

As shown in FIG. 3, the winding roll R is disposed on the curved surface 45 of the roll accommodating portion 30, and the resin film W
Is fed forward from the winding roll R. Cylindrical body 70
Is disposed on a step 45 formed between the curved surface 45 and the heat welding device 20. A flat urging member 82 is disposed above the step 45. The urging member 82 includes a support shaft 81.
And elastically urged clockwise in FIG. The upper resin film W1 maintains the contact state with the cylindrical body 70 by the elastic pressing action of the urging member 82.

The step portion 45 is provided with a magnet 47 which is curved with a curvature concentric with the cylindrical body 70. Magnet 47
Sucks the cylindrical body 70 with a relatively low magnetic force with the lower resin film W2 sandwiched between the cylindrical body 70 and the magnet 47.

FIG. 4 is a perspective view showing the structure of the heat welding apparatus 20. Heat welding device 20 adjacent to magnet 47
Is a pair of front and rear linear welding heaters 26 and 27, and a linear fusing heater 2 disposed between the welding heaters 26 and 27.
8 is provided. Teflon tape 24 is laminated on heaters 26,27,28. Heater 2
The heat of 6, 27 heats the surface of the Teflon tape 24 to an appropriate welding temperature. The heater 28 is intermittently exposed to the upper surface of the Teflon tape 24, directly contacts the lower resin film W2, and melts the resin film W.

As shown in FIG. 3, the air injection device 50 includes a casing 51, an air supply section 52, an air discharge pipe 23, and a pressing member 60. The air supply unit 52 is connected to the main body 32.
Connected to the air pump 33 housed in the housing. The air discharge pipe 23 extends downward through the pressing member 60, and the pointed tip (lower end) of the air discharge pipe 23 penetrates into the resin film W. The tip of the air discharge pipe 23
An air discharge port 28 opened in an oblique direction is formed. The air supply section 52 and the air discharge pipe 23 are elastically supported at a predetermined level by a spring 54 disposed in the casing 51. The pressurized air of the air pump 33 is introduced into the air discharge pipe 23,
Discharge inside. The discharged air is injected into the front resin film W to form an air layer A.

The pressing member 60 is housed in the casing lower part 56 so as to be vertically movable. The lower surface 61 of the pressing member 60 is
A flat resin film pressing surface is formed, and the upper surface of the pressing member 60 is elastically urged downward by the spring 55.

A pair of contact-actuated switches 53 are disposed on the air supply 52. The switch 53 is connected to the air supply unit 5
When the air pump 3 is pressed down, the air pump 3
3 and the heaters 26, 27, 28 are activated.

FIG. 5 is a sectional view showing the operation of the heat welding device 20 and the air injection device 50. As shown in FIG. 5A, the upper and lower resin films W1: W2 are vertically separated from each other by the cylindrical body 70. When the air injection device 50 is manually pushed down, the tip of the air discharge pipe 23 penetrates the resin film W1, abuts against the resin film W2 on the heat welding device 20, and stops. The air pump 33 and the heaters 26, 27, 28 are operated by the contact of the switch 53, and pressurized air is discharged from the opening 28 into the resin film W, so that the air layer A is formed forward.

As shown in FIG. 5B, the air injection device 50
Is further pressed down, the pressing surface 61 of the pressing member 60 causes the upper and lower resin films W1: W2 to adhere to each other. The heaters 26 and 27 of the heat welding device 20 are provided with a resin film W1:
W2 is mutually welded. At the same time, the portion of the heater 28 intermittently exposed on the Teflon tape 24 melts the resin film W1: W2 to form perforations in the resin film W.

FIG. 6 is a perspective view showing an air cushioning material manufactured by repeatedly performing such air filling and welding operations. The air cushion material manufactured by the air cushion material bag making machine 1 has a continuous band-like structure in which a cushion portion B in which an air layer A is sealed is connected. The air cushioning material has two rows of linear welds C between the cushions B, and a perforation D is formed between the welds B so that it can be easily separated by fingers.

[0021]

As described above, according to the present invention, it is possible to provide a small and lightweight air cushion material bag making machine capable of producing an air cushion material with a simple mechanism.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of an air cushioning bag making machine.

FIG. 2 is a perspective view conceptually showing a state where a cylindrical body is inserted into a resin film.

FIG. 3 is a longitudinal sectional view showing the structure of the air cushioning bag making machine.

FIG. 4 is a perspective view showing the structure of the heat welding device.

FIG. 5 is a longitudinal sectional view showing an operation mode of the heat welding device and the air injection device.

FIG. 6 is a perspective view showing an air cushioning material manufactured by repeatedly performing an air filling / welding operation.

[Explanation of symbols]

 1: air cushion material bag making machine 20: heat welding device 30: roll housing unit 50: air injection device 60: pressing member 70: cylindrical body R: winding roll W: resin film

Claims (1)

[Claims] 1. An air cushion material bag making machine for producing an air cushion material in which air is sealed, a roll accommodating portion capable of accommodating a winding roll of a tubular resin film, and air injection / heat welding for welding the resin film. And a rod-shaped member having a circular cross-section that can be inserted between upper and lower resin films, wherein the rod-shaped member is inserted into the resin film, and the roll accommodating portion and the air injection / heat welding are performed. The upper film portion and the lower film portion of the resin film fed from the winding roll of the roll accommodating portion are separated between the upper film portion and the lower film portion. A pair of front and rear linear heaters to be welded to each other, and an air discharge pipe that penetrates the upper film portion between the heaters and discharges compressed air from a front end portion; The compressed air discharged between the portions is filled in a resin film located in front of the air injection / heat welding portion, and upper and lower film portions located in the air injection / heat welding portion are mutually interlocked by the linear heater. An air cushion material bag-making machine, wherein a linear welded portion capable of sealing air that is welded and filled in a resin film is formed on the resin film.