JPH0680160A - Method and apparatus for manufacture of cushioning material for packing - Google Patents

Abstract

PURPOSE:To prevent damages from occurring to outer bags for filling cushioning materials therein for encasement of electric appliances by a method wherein the outer bag material, unwound from a roll, is temporarily pooled and is drawn out while its opening is opened and after the material is filled with cushioning material, the opening is sealed up with vents left unsealed and after air inside the material is let out, the rear end of the material is cut by weld-cutting. CONSTITUTION:Outer bag material, unwound from a roll 9, is temporarily pooled in a pooling mechanism 10, and is successively fed with a feeding mechanism 11. As the front end of the material is projected beyond a cutting mechanism 12 for weld-sealing, pinch rollers 18b are separated on signals outputted from a sensor and at the same time, the upper and the lower faces of the front end are attracted with a sucking means and an opening is formed thereby. The material is then moved toward an opening forming part 4 and the front end is completely opened. After the material is filled with cushioning materials, the opening is sealed up by welding with vents left unsealed. Then, the material is moved in the direction of pulling back by reverse rotation of the pinch rollers 18b and thereby air inside the bag is let out. Then, the material is cut by means of weld-cutting with the cutting mechanism 12 for weld- sealing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to fill a space between a carton and / or each component of a device when a home appliance, an electronic device and other devices are packed in a carton, and the device or a component thereof. TECHNICAL FIELD The present invention relates to a manufacturing method and a manufacturing apparatus of a cushioning body for packaging that relieves impacts on the product and prevents damage to them.

[0002]

2. Description of the Related Art As an air cushion type packing buffer used for the above-mentioned applications, a foaming body formed in a chip shape or a cushioning material such as a tetrahedral air sealing bag having a small capacity recently is used. An air-cushion type is used in which a large number of large-capacity outer bags are sealed and the other end is sealed.

This air cushion type packing cushion is manufactured by pressing and rolling a tubular material made of polyethylene, vinyl or other synthetic resin, which is necessary for forming a large-capacity outer bag, and rolling it. The material corresponding to the length of the outer bag body is pulled out from this roll while expanding the tip end into, for example, a square shape, and stopped when the material is pulled out for a predetermined length. Here, a predetermined number of cushion materials separately manufactured from the expanded tip is filled in the outer bag body, and the tubular outer bag body material is welded and cut at positions with a predetermined interval in the length direction. And have it as a product.

[0004]

In the cushioning body in which a predetermined number of cushion materials are filled and sealed in the sealed outer bag body as described above, the outer bag body is left with residual filling when the outer bag body is fused and cut. The air gives elasticity to the outer bag body itself, a large number of cushioning materials inside the outer bag body hardly participate in the cushioning action, and further, the impact directly acting on the outer bag body causes the outer bag body to be damaged, Not only may the cushioning material be scattered, but the cushioning effect may be reduced.

In order to prevent the above problems from occurring, an air vent hole is provided in any part of the outer bag body so that the outer bag body is sealed when the cushion material is filled and cut. The outer bag itself may be made less elastic by releasing the air in the bag.

The present invention has been made based on the above circumstances, and manufactures a cushioning body for packaging in which the elasticity of the outer bag body is removed by pushing out the air in the outer bag body filled with the cushioning material in accordance with the cushioning. A method and a manufacturing apparatus are provided.

[0007]

According to the method of manufacturing a cushioning bag for packaging of the present invention, the outer bag body material is rolled from a roll of the outer bag body material which is obtained by pressing and winding a tubular outer bag body material. In the vicinity of the roll of the outer bag body material, a step of pulling out a required amount of tubular outer bag body material while pinching it by a delivery roller and once pooling, and pulling out the pooled outer bag body material and expanding the tip thereof to open the opening Forming and pulling out, filling a required amount of a plurality of cushion materials into the outer bag material through the opening, and sealing the opening except a plurality of portions to form a sealing edge having an air vent hole. And a step of applying the pressure to the outer bag material between the tip portion and the sandwiching portion in the sending roller that has sent the outer bag material, to push out the air in the outer bag material, and in the vicinity of the sending roller. Weld and cut the outer bag material Characterized by a step of. The packaging cushion manufacturing apparatus of the present invention is a material supply unit configured to support a roll of outer bag material formed by pressing and winding a tubular outer bag material by a support roller that is driven in a timely manner, A pool mechanism for temporarily pooling the required length of the outer bag material fed from the material roll near the material roll, a pinch roller provided on the material outlet side of the pool mechanism, and an outer bag stored in the pool mechanism. A material transfer mechanism for transferring the body material by slightly expanding the tip thereof to form an opening, an opening forming portion for forming an opening at the tip of the material transferred by the material transfer mechanism, and the inside of the outer bag body material from the formed opening. A facility for filling a predetermined amount of a plurality of cushion materials in a predetermined amount, a sealing device for sealing the opening after filling the inner bag except a plurality of parts to form a sealing edge having an air vent hole, and the sealing device. Hey after sealing Said means for the pinch roller is reversed push the air from the air vent hole of the heat sealing edge, the pinch roller is provided near heat sealing the material ends after the reversal, and having a means for cutting.

[0008]

In the manufacturing method of the cushioning body for packing of the present invention, the air vent hole is formed automatically at the same time as the tip end is melted and sealed, so that no special step for forming the air vent hole is required. Further, air is pushed out of the outer bag body by pulling back the outer bag body material pulled out prior to the sealing and cutting of the holding portion from the holding portion to the outer bag body material roll side.

Further, in the apparatus for manufacturing the packing cushioning body of the present invention having the above-described structure, the cushioning body is automatically manufactured, so that the productivity of the cushioning body can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The manufacturing method and manufacturing apparatus of the present invention will be described below with reference to the accompanying drawings. 1 is a front view of a manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view of a cutter section and a fusion-sealing section of the manufacturing apparatus, FIG. 4 is a side view thereof, and FIG. 6 is a front view of an opening forming mechanism for filling the inner bag of the manufacturing apparatus, FIG. 6 is a side view thereof, and FIG. 7 is a manufacturing apparatus of the embodiment and a cushioning material manufacturing and enclosing machine including, for example, a four-sided bag-shaped inner bag. FIG. 8 is a front view of a manufacturing facility configured by combining the above, FIG. 8 is a side view thereof, and FIG. 9 is a plan view thereof.

1 and 2, the manufacturing apparatus of the present invention comprises a frame 1 constructed by assembling angle members, a material supply section 2 provided on one side of the frame 1, and a material supply section thereof. 2 is provided adjacent to 2 to measure a predetermined length of the material and feed it out, and a material tip 3 which is provided on the other side of the frame 1 and is fed by the material delivery part 3 , And an opening forming portion 4 for forming a square opening.

As shown in FIGS. 1 and 2, the material supply unit 2
Is a material mounting table 5 formed by projecting to one side of the frame structure 1.
And a pair of support rollers 7 and 8 which are provided on the mounting table 5 with their axes parallel to each other and one of which is driven by a motor 6.
These support rollers 7 and 8 are placed with their axes parallel to each other, and have a material roll 9 formed by pressing and winding a long tubular outer bag material. The motor 6 is started and stopped by being controlled by the state of the material delivery section 3 described later.

As shown in FIG. 1, FIG. 3, and FIG. 4, the material delivery section 3 has a pool mechanism 10 for storing a material having a length substantially required to form one outer bag body, and a pooled material. Is provided to the opening forming portion 4, and a fusion-sealing cutting mechanism 12 that performs air-sealing and cutting by discharging air in the outer bag body after completion of filling the cushion material.

Fixed rollers 13a to 13c for guiding the material from the material roll 9 are provided on the material inlet side of the material delivery section 3.
Are provided in order from the material roll 9 side, and the fixed roller 13
A vertical groove 15 provided in the support plate 14 is provided between b and 13c.
A dancing roller 16 is provided which slides along.
The support plate 14 and the dancing roller 16 constitute the material pool mechanism 10. It should be noted that the support plate 14 is provided with a sensor 17 for detecting the presence or absence of the material in the pool mechanism 10. The sensor 17 is provided in the delivery section 11 and is arranged in the vertically opposing pinch rollers 18a, 18b for delivering the material. The motor 19 for driving the lower stage 18a is controlled in a manner described later.

On the other hand, the pinch roller 18b arranged in the upper stage
The support shaft 19 rotatably engaged with is supported by a U-shaped shaft support plate 21 fixed to the tip of the output shaft 20a of the cylinder 20. The cylinder 20 is controlled in a manner described later.

On the material outlet side of the material delivery section 3, a fusion cutting section 22 shown in FIGS. 3 to 4 is provided. The fusion cutting section 22 includes a cutter 24 driven by a cylinder 23 fixed to the ceiling of the frame structure 1, and a fusion sealing heater 25 built in a blade of the cutter 24.
And the heater 25 is operated at the timing described later.

Further, a material transfer mechanism 26 is provided on the opening forming portion 4 side of the cutter 23. The material transfer mechanism 26 includes guide bars 27, 27 provided to penetrate the frame structure 1 in the longitudinal direction, and the guide bars 27, 27.
Mechanism board 28 slidably engaged with 27, and this board 2
8, a cylinder 29 attached to the guide bar with the output shaft vertical, and a lower holding plate 30 fixed to the substrate 28.
And an upper pressing plate 31 that is connected to the output shaft of the cylinder 29 and faces the lower pressing plate 30. Although not shown in the drawing, suction plates made of, for example, rubber are attached to the facing portions of the lower pressing plate 30 and the upper pressing plate 31, respectively. Further, the mechanism substrate 28 is reciprocated between the opening forming portion 4 and the outlet side of the material delivery portion 3 by a driving device such as a chain mechanism (not shown) that is driven at appropriate times.

Next, the opening forming portion 4 will be described with reference to FIGS.

The opening forming portion 4 includes a cylinder 32 provided with a vertical output shaft on the ceiling surface of the frame structure 1, an elevating plate 33 fixed to the output shaft of the cylinder 32, and an elevating plate 3.
3, a guide tube 34 parallel to the cylinder 32,
It has guide bars 35, 35 that engage with 34, and a pair of protrusions 36, 36 that are provided on the side surface of the elevating plate 33 on the material delivery section 3 side so as to project toward the delivery section 3 side.

On the other hand, the output shaft 37 is attached to the middle cross beam of the frame structure 1.
a pair of cylinders 37 and 37 are fixed so that a and 37a face the side surfaces of the frame structure 1, respectively, and the output shafts 37a and 37 are
a is a horizontal beam 1 of a guide plate 38 provided above the horizontal beam 1a.
a movable protrusion base 39 movable along an elongated hole 38a parallel to a,
39 are connected. Each of the movable protrusion bases 39, 39 is provided with a protrusion 40 protruding toward the material feeding portion 3 side.

On the other hand, a cylinder 41 parallel to the cylinder 32 is provided at a position closer to the material delivery section 3 than the cylinder 32 on the ceiling of the frame structure 1. This cylinder 4
To the output shaft 41a of No. 0, a fusion-sealing member 42 incorporating a heater (not shown) is attached. The fusion-sealing member 42
The protrusions 36, 36, which will be described later, at the time of fusion sealing
Notches are provided to engage 40, 40.

The cylinders 32, 37, 37 and 41 are operated at the timings described later and in the manner described later to form an opening at the end of the material sent from the material sending section 3 and seal the opening. .

As shown in FIGS. 7 to 9, the manufacturing apparatus 101 of the present invention having the above structure is combined with a cushion material manufacturing facility 102.

Next, the operation of the present invention will be described.

At the time when the production of one packaging cushion is completed, the material transfer mechanism 26 is in contact with and stopped by the fusion cutting section 22, and the cutter 24 is also in the raised state. In addition, the cylinders 27, 27 of the opening forming portion 4 have their output shafts 27a, 2
7a is at the most retracted position, and the movable protrusion base 39, and therefore the protrusions 40, 40, are the widest in their distance.
Further, the output shaft of the cylinder 32 is at the lowest position, so the lift plate 33 is also held at the lowest position. Further, the output shaft of the cylinder 41, and hence the fusing member 42, is held in the raised position. The motor 6 is stopped and the material roll 9 is held in a stopped state. Further, the pinch rollers 18a and 18b are also stopped. The material drawn from the material roll 9 is the pool mechanism 1
0 is pooled long enough for one product, and its tip is nipped by pinch rollers 18a and 18b.

When the production of the preceding product is completed, a signal is issued by a control mechanism (not shown) and the pinch roller 18
a and 18b are activated. As a result, the pool mechanism 10
The material pooled inside is fed out, and its tip is projected from the fusion cutting section 26. The cylinder 20 is biased by a sensor that detects this or by a timer as appropriate, and the pinch rollers 18a and 18b are opened. Next, the cylinder 29 is urged to sandwich the tip of the ejected material between the lower pressing plate 30 and the upper pressing plate 31. Here, the cylinder 29 is slightly moved in the opposite direction, and the upper pressing plate 31 is raised accordingly. Both presser plates 3
Since 0 and 31 are provided with suction plates (not shown), openings with a slight height are formed at the tip of the material.

Here, a drive mechanism (not shown) is activated and the substrate 28 of the transfer mechanism 26 moves toward the opening forming portion 4 along the guide bars 27, 27. At this time, the material is transferred in the direction of the opening forming portion 4 with the tip open. At the final stage of transfer, the protrusion 3 is placed in the opening at the tip.
6, 36, 40, 40 engage. The material transfer mechanism 26 is stopped and the cylinder 32 and the cylinders 37, 37 are energized. Here, the pinch rollers 18a and 18b are closed again, and the material transfer mechanism 26 is returned to the original position. The lifting plate 33 is raised by the urging force of the cylinder 32, and the protrusions 36, 36 pull up the film on the upper surface of the opening at the tip of the material. The cylinders 37, 37, which are energized at the same time as the energization of the cylinder 32, cause their output shafts 37a, 37a to project and move in a direction in which the movable protrusion base 39 and thus the interval between the protrusions 40, 40 is narrowed. . These stems 36-40
Movement causes a substantially trapezoidal opening to be formed at the tip of the material, as shown in FIG. Here, the inner bag manufacturing equipment 102 shown in the figure is operated to open the opening forming portion 4 and the pinch roller 18.
A predetermined amount of inner bag is filled in the unsealed outer bag body formed between a and 18b.

At this point, the girinder 43 is urged to lower the fusing member 42. At this time, the cylinders 32, 37, 3
7 is biased in the opposite direction, and the formed trapezoidal opening is an elongated opening having the above-mentioned slight height. The fusion-sealing member 42 descends here to press the tip of the material to melt and seal it. At the time of melting and sealing, the sealing member 4
Since the notch 2 which engages with each of the protrusions 36, 36, 40, 40 at the time of sealing is formed in 2, the sealing portion has an unsealed portion, that is, an air vent hole, at the position of each of the protrusions. Will be formed.

When the cushion material is filled, filled, and the openings are sealed as described above, the pinch rollers 18a, 1
8b is slightly driven in the opposite direction, that is, in the direction of pulling back the material. As a result, the cushion-filled outer bag body filled as described above is squeezed by the pinch rollers 18a and 18b, and a part of the air in the outer bag body is formed in the sealing portion. It can be released from the air vent hole. In this state, the cylinder 28 is urged, the blade of the cutter 24 is lowered, and the base end of the outer bag body is sealed by cutting with the blade and heating of the heater 25 incorporated in the blade.

Here, the cylinder 28 is biased in the opposite direction, the motor 6 is started, the support roller 7 is rotated, the material roll 9 is rotated, and the material of the required length is fed into the pool mechanism 10. Stored in. This completes one cycle of operation, that is, the production of one packing cushion, and the preparation for the subsequent production of products.

[0031]

As is apparent from the above, according to the manufacturing method of the present invention, the cushioning property of the cushion material can be fully utilized without excess air remaining in the outer bag body, and the outer bag body can be utilized. It is possible to manufacture a cushioning body for packing which is free from damage. Further, according to the manufacturing apparatus of the present invention, it is possible to easily and automatically continuously manufacture the packaging cushioning body having the above properties.

[Brief description of drawings]

FIG. 1 is a front view of a manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of a cutter unit and a fusion-sealing unit of a manufacturing apparatus according to an embodiment of the present invention.

FIG. 4 is a side view of FIG.

FIG. 5 is a front view of an opening forming mechanism for filling an inner bag of a manufacturing apparatus according to an embodiment of the present invention.

6 is a side view of FIG.

FIG. 7 is a front view of manufacturing equipment configured by combining a manufacturing apparatus for carrying out the present invention and a cushion material manufacturing and enclosing machine.

FIG. 8 is a side view of FIG. 7.

9 is a plan view of FIG. 7. FIG.

[Explanation of symbols]

 1 ………… Frame structure 2 ………… Material supply unit 3 ………… Material delivery unit 4 ………… Aperture forming unit 9 ………… Material roll 10 ………… Pool mechanism 11 ………… Feeding mechanism 12 ………… Melting Seal cutting mechanism 18a, 18b ... Pinch roller 26 ... Material transfer mechanism 27 ... Guide bar

Claims (2)

[Claims] 1. An outer bag body material is fed from a roll of an outer bag body material formed by pressing and winding a tubular outer bag body material in the vicinity of the roll of the outer bag body material, and is pressed by rollers. Pulling out a certain amount of tubular outer bag material once and pooling it, pulling out the pooled outer bag material and pulling it out by forming the opening by opening the tip and opening it into the outer bag material A step of filling a required amount of a plurality of cushion materials, a step of fusing and sealing the opening except a plurality of parts to form a fusing edge having an air vent hole, and a step of feeding the outer bag body material in the feeding roller Applying a pressure to the outer bag body material between the tip portion and the sandwiching portion to push out the air in the outer bag body material, and melt-sealing and cutting the outer bag body material in the vicinity of the delivery roller. Buffer for packing characterized by Manufacturing method. 2. A material supply section in which a roll of an outer bag body material obtained by pressing and winding a tubular outer bag body material is supported by a supporting roller which is driven in a timely manner, and is fed from the material roll. A pool mechanism for temporarily pooling the required length of the outer bag material in the vicinity of the material roll, a pinch roller provided on the material outlet side of the pool mechanism, and an outer bag material stored in the pool mechanism at the tip thereof. A material transfer mechanism that slightly expands and transfers by forming an opening, an opening forming portion that forms an opening at the tip of the material transferred by this, and a plurality of cushion materials in the outer bag body material from the formed openings. A facility for filling the required amount, a sealing device that forms a welded edge having an air vent hole by fusion sealing the opening after filling the inner bag with a plurality of parts, and after sealing by the sealing device, Pinch roller And a means for pushing out air from the air vent hole of the fusion-sealing edge, and means for sealing and cutting the end of the material after the reversal, provided near the pinch roller. Manufacturing equipment.