JPH0651376B2 - Fusion box manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention pushes a thermoplastic resin plate into a cylindrical molding die to erect the side wall surface of the plate and assemble it into a box shape. The present invention relates to a fusion box manufacturing apparatus.

<Prior Art> Conventionally, as a fusion box manufacturing apparatus, an unnecessary ear portion corresponding to a corner portion is formed by pressing a hot blade like a cross beam provided in the apparatus or another apparatus to form a bent groove. The plate material of the thermoplastic resin from which is removed is pushed into a cylindrical molding die to erect the side wall surface formed outside the bent groove, and the corners in the molten state are crimped to manufacture a box. There was something.

Usually, in such an apparatus, the plate material is pushed into the molding die by pressing the plate material with a pressing plate. Further, since the pressing plate reciprocates linearly, an air cylinder mechanism has been used to operate the pressing plate. The operation of the air / cylinder mechanism is performed by increasing or decreasing the amount of air in the cylinder.

<Problems to be Solved by the Invention> By the way, the pressing plate needs to come into contact with the plate material at a slower moving speed in order to prevent the plate material from being damaged. It is preferable to make the box-making process efficient.

However, in the conventional air-cylinder mechanism, the moving speed of the pressing plate cannot be increased so much because the supply amount of air into the cylinder and the discharge amount of air from the cylinder are limited. Therefore, it is difficult to speed up the operation of the entire apparatus, the speed of the box-making process cannot be increased, and the manufacturing cost is high.

Further, when the plate material is pushed into the molding die by the pressing plate, the plate material cannot be accurately pushed, and the heights of the bent and standing peripheral side walls are not uniform.
Then, after the box is formed, a cutting operation for aligning the heights of the peripheral side walls is required, and a chip removing operation is also required.

The present invention has been made as a result of earnest research to solve such a conventional technical problem, and it is possible to improve the accuracy of the box making process and to eliminate the need for a post-box making process. It is intended to provide a fusion box manufacturing apparatus capable of achieving a reduction in manufacturing cost by increasing the processing speed.

<Means for Solving the Problems> Thus, the gist of the present invention for solving the above-mentioned conventional technical problem is that a plate material of a thermoplastic resin from which unnecessary ears are removed is used as a first pressing plate. In the apparatus for manufacturing a fusion bonding box, which is sandwiched between a second pressing plate and pressed into a cylindrical molding die to erect the side wall surface of the plate material and bend and assemble it into a box shape, the first pressing The plate and the second pressing plate are configured so that they can be operated by a pressing plate operating means consisting of a pair of cam and link mechanisms that operate respectively, and further, a conveyor for receiving the assembled fusion-bonded box below the molding die. Manufacture of a fusion-bonding box characterized in that a mold is provided, and the carrying mold is configured to be capable of being brought into contact with and separated from the molding mold by a holding means by a pair of cam and link mechanisms different from the above. It exists in the device.

<Operation> According to the manufacturing apparatus having such a configuration, since the plate material is pushed into the molding die while the plate material is sandwiched between the first pressing plate and the second pressing plate, the plate material is The peripheral side wall is erected and assembled with the positional deviation prevented.

Further, the pressing plate operating means for operating the first pressing plate and the second pressing plate is constituted by a pair of cam and link mechanisms, so that the first pressing plate and the second pressing plate are made into a plate material. It is possible to swiftly perform the operation and stop and to freely set the operation speed except when the contact is made.

Further, since the conveying die provided below the forming die is brought into contact with or separated from the forming die by the holding means by the pair of cam and link mechanisms, the forming is performed. It becomes easy to perform the operation setting for receiving and carrying the fused fusion box.

<Example> Next, an example of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show the whole of the fusion box manufacturing apparatus. In this figure, this manufacturing apparatus comprises a hot blade (5) and a molding die (6) to mold a box. Box-making zone (S1), a cooling zone (S for cooling the box formed in the box-making zone (S1)
2) and the take-out zone (S3) where the box is taken out are arranged at different positions.

To the box making zone (S1), as shown in FIG. 1, the box forming plate materials (P) sequentially sent out from the storage hopper (1) by the cam link mechanism (800) as a plate material sending means, Supplied by the supply belt (2). This Storage Hopper (1)
Is a plate material (P) made of thermoplastic resin such as foamed or non-foamed polypropylene, polystyrene and polyethylene.
Are stacked in the vertical direction. Supply belt
(2) is a belt belt, which is driven by the drive roller (20). The plate material (P) supplied to the box-making zone (S1)
Is accurately guided to the box-making zone (S1) by a guide member (not shown) arranged across the supply path of the plate (P).

The cam link mechanism (800) has the following structure as shown in FIG.
A plate-shaped cam (810) that rotates integrally with the cam shaft (104),
(810) a T-shaped driven lever (820) which rotates around a central portion (820a), a tension spring (830) which urges the driven lever (820) to rotate clockwise, and a driven lever (820). ) And a rod (840) that is rotated around the lower end (840a) with the rotation of the driven lever (820), and a rod (850) connected to the upper end of the rod (840), The slide plate (860) is connected to the rod (850) and sends out the plate (P).

On the other hand, the molding die (6) is of a fixed type in which a cavity having a rectangular cross section is formed as shown in FIG.
(P) is pushed in, the side wall surface of the plate (P) is erected, and bent and assembled into a box to form a box. The molding die (6) can freely adjust the size and shape of its cross section according to the size and shape of the box to be molded. For example, a hexagonal or other arbitrary polygonal cross section can be used. It is also possible to form it into a shape and implement it.

Below the molding die (6), as shown in FIG. 1 and FIG. 2, are a plurality of conveying dies (7) capable of pushing a box with a cross-sectional shape substantially the same as the molding die (6). , Each transfer mold (7)
1), a transfer means (11) for moving while sequentially stopping at predetermined positions in the cooling zone (S2) and the take-out zone (S3).

This transfer means (11) is provided with a rotary shaft (50) of a motor (not shown).
0) from the bevel gear mechanism or a worm gear mechanism via a transmission mechanism (510) such as a turntable (520) which is rotationally driven around a horizontal axis, and a transport money for every 90 ° rotation of the turntable (520). The transfer die (7) is provided with an attaching means (530) attached to the turntable (520) so that the die (7) can be moved to a close position below the forming die (6). . This attachment means (530) is attached to the back surface of the transfer mold (7), and the support shaft (531) penetrating the peripheral side plate (521) of the turntable (520) and the support shaft (531) are loosely fitted. The end of the support shaft (531)
It is composed of a compression spring (532) that presses (531a) and biases the transfer die (7) toward the center of rotation of the turntable (520).

The conveying die (7) moved to the lower side of the forming die (6) by the transfer means (11) is held by the holding means by the cam link mechanism (600) as shown in FIG. The box molded by the molding die (6) is brought into contact with the molding die (6) and is pushed into the transportation die (7) and then separated from the molding die (6).

As shown in FIG. 14, the cam link mechanism (600) contacts a plate-shaped cam (610) that rotates integrally with the cam shaft (100) and one end (620a) of the cam (610). The cam (610) is used to rotate the center of the center (620c) around the "L" -shaped driven lever (620), and the other end (620b) of the driven lever (620) is attached to the support shaft (620). The end portion (531a) of the 531) is composed of a U-shaped holding portion (630) that can be moved.

The operation of the holding means for the transfer die (7) by the cam link mechanism (600) will be described. When the cam (610) rotates to rotate the driven lever (620) clockwise, the holding portion (630) of the other end (620b) of the driven lever (620) causes the compression spring (5) to move.
The spindle (531) is lifted against 32) to bring the conveying die (7) into contact with the forming die (6). Then, when the cam (10) further rotates to allow the driven lever (620) to rotate counterclockwise,
The compression spring (532) pushes down the support shaft (531) and separates the transfer mold (7) from the molding mold (6).

As shown in FIG. 3, the upper surface of the molding die (6) is surrounded by a plurality of L-shaped stoppers (4) and 1
Individual positioning pushers (40) are attached, and the plate material (P) intermittently supplied from the supply belt (2) to the upper surface of the molding die (6) is attached to the L-shaped stopper (4) and positioning. The pusher (40) can be set to a predetermined position every time. In addition, in FIG. 3, the broken line indicates the processing line of the bent groove and the fusing line of the unnecessary ear portion.
The L-shaped stopper (4) can be adjusted in its mounting position by an elongated hole provided on the upper surface of the molding die (6) (not shown).

The hot blade (5) is in the shape of a cross girder arranged above the molding die (6), and as shown in FIG. 4, a plate material set on the upper surface of the molding die (6). (P) A rectangular frame portion (51) that contacts the (P) to form a V-shaped bent groove, and an extension that extends outside the angular frame portion (51) and cuts the ears of the plate (P). It consists of the installation part (52). A second pressing plate, which will be described later, is provided inside the square frame portion (51).
A passage hole (53) for passing the (9) is formed. Hot blade (5)
A cartridge heater (54) for heating is embedded inside the blade edge of the hot blade (5) is heated to a predetermined temperature by the cartridge heater (54). As shown in FIG. 2, the hot blade (5) is operated by a cam link mechanism (200) as hot blade operating means and moves up and down. The hot blade (5) is not limited to the cross beam shape, and may be a polygonal shape such as a hexagon depending on the shape of the box to be formed.

The cam link mechanism (200) as this hot blade operating means,
As shown in FIGS. 2 and 11, a plate-shaped cam (210) that rotates integrally with the cam shaft (100), and a driven body that rotates by a predetermined angle around one end (220a) by the cam (210). Lever (22
0) and the lower end (230b) at the other end (220b) of the driven lever (220).
The rod (230) connected to b) and the upper end (230a) of the rod (230)
A rocker arm (240a) that is connected to the center part (240c) and rotates around the center part (240c), and the other end part (240b) of the rocker arm (240) is connected to the upper end part (250a), and It comprises a rod (250) connected to the side plate (260a) of the hot blade mounting table (260).

The hot blade mounting table (260) is mounted with the hot blade (5) and is supported by the support shaft (101) so as to be vertically movable, and has a first pressing plate (8) described later in the center thereof. It has an insertion hole (not shown) that allows the insertion. The hot blade mounting table (260) is biased upward by the return spring (102).

The operation of the cam link mechanism (200) will be described.
When the driven lever (220) is pushed up by the cam (210) and rotated clockwise, the driven lever (220) moves the rod (230).
To rotate the rocker arm (240a) counterclockwise, which causes the rod (250) to move to the hot blade mounting table (260).
Is pushed down to bring the hot blade (5) into contact with the plate material (P).

Then, when the cam (210) further rotates and the counterclockwise movement of the driven lever (220) is allowed, the return blade (102) pushes up the hot blade mounting table (260), and the hot blade (5) moves the plate material. Moves away from (P) and rises. At this time, the plate material of the hot blade (5)
The shape of the cam (210) is set so that the cam (210) can be quickly separated from the (P).

Referring to FIG. 2, the molding die (6) side has the molding die.
(6) A first pressing plate (8) that can project from the inside is provided, and a plate material (P) is provided between the first pressing plate (8) and the hot blade (5) side.
A second pressing plate (9) capable of sandwiching is provided. Second
The pressing plate (9) protrudes from above the heat blade (5) through the passage hole (53) to the lower side of the heat blade (5) and lowers the plate material (P) set on the upper part of the molding die (6). It can be pressed to. The first pressing plate (8) is provided from below the transfer mold (7).
And the second pressing plate (9) by passing through the inside of the molding die (6) and pushing up the plate material (P) set on the upper surface of the molding die (6) from below.
The plate material (P) can be sandwiched between and.

The first pressing plate (8) and the second pressing plate (9) are respectively operated by a pair of cam link mechanism (400) and cam link mechanism (300) as pressing plate operating means. In the first pressing plate (8) operated by the cam link mechanism (400) and the first pressing plate (8) operated by the cam link mechanism (300), Before the plate (P) on the mold (6) is abutted, the plate (P) is sandwiched, and the plate (P) with the bent groove formed by the hot blade (5) and the ears melted is formed. After being pushed into (6), the formed box is pushed into the conveying die (7) to release the sandwiched state.

As shown in FIG. 13, the cam link mechanism (400) includes a plate material cam (410) that rotates integrally with the cam shaft (100) and the cam (4).
A driven lever (420) which rotates about one end (420a) by a predetermined angle by 10), and a predetermined portion (420c) of the driven lever (420).
Tension spring (450) that biases the driven lever (420) clockwise to rotate the driven lever (420) clockwise, and the other end (4) of the driven lever (420).
A rod (430) having a lower end portion (430b) connected to 20b), and the rod.
It is connected to the upper end (430a) of (430), and the first end is attached to the upper end (440a).
And a pressing plate mounting member (440) to which the pressing plate (8) is mounted.

Next, the operation of the cam link mechanism (400) will be described. When the cam (410) rotates to allow counterclockwise movement of the driven lever (420) by the tension spring (450), the driven lever (420) rotated counterclockwise pushes up the rod (430). The first pressing plate (8) mounted on the pressing plate mounting member (440) to a position substantially flush with the upper surface of the molding die (6), whereby the first pressing plate (8) 8) holds the plate material (P) between the second pressing plate (9).

Then, when the cam (410) further rotates to rotate the driven lever (420) clockwise against the tension spring (450), the driven lever (420) rotated clockwise rotates the rod ( 430) to pull down the pressing plate mounting member (440), whereby the first pressing plate (8) passes through the molding die (6) and the conveying die (7), and then the conveying die (7). ) To the bottom.

On the other hand, as shown in FIG. 12, the cam link mechanism (300) has a plate-shaped cam (310) that rotates integrally with the cam shaft (100) and one end (320a) centered by the cam (310). A driven lever (320) that rotates by a predetermined angle and a predetermined portion of the driven lever (320)
A compression spring (360) for urging (320c) upward to urge the driven lever (320) to rotate counterclockwise, and a lower end (330b) at the other end (320b) of the driven lever (320). With the connected rod (330),
A rocker arm (340) that is connected to the upper end (330a) of the rod (330) and rotates around a central part (340c), and an upper end (350a) at the other end (340b) of the rocker arm (340). And a pressing plate attachment member (350) having a second pressing plate (9) attached to the lower end portion (350b).

The operation of the cam link mechanism (300) will be described.
The cam (310) rotates and the compression spring (360) drives the driven lever (3
When the counterclockwise movement of (20) is allowed, the driven lever (320) pivoted counterclockwise pushes up the rod (330) and pivots the rocker arm (340) counterclockwise. The pressing plate (9) attached to the pressing plate mounting member (350) descends and holds the plate material (P) between the pressing plate (9) and the first pressing plate (8).
Then, the first pressing plate (8) and the second pressing plate (9) pass through the molding die (6) while sandwiching the plate material (P) between them, and the inside of the conveying die (7). However, the shape of the cam (310) is set so that a good holding state can be maintained at this time. That is, the cam (310) is driven by the driven lever (320).
Do not restrict the counterclockwise rotation of the driven lever (3
20) so as to avoid contact with the second pressing plate (9) by the tension spring (360).
The pressure plate (8) is pressed to the side.

Then, the cam (310) further rotates and the driven lever (32
0), the driven lever (320) is pushed down by the cam (310) and rotated clockwise, the driven lever (320)
(320) pushes down the rod (330) against the compression spring (360) to rotate the rocker arm (340) clockwise, whereby the second plate attached to the pressing plate attachment member (350). Raise the pressure plate (9).

In the cooling zone (S2), the box (P
A cooling means such as an air cooling fan capable of forcibly cooling 1) is provided (not shown). This cooling zone (S
In 2), the box in which the heat-sealed portion is not yet sufficiently solidified is cooled in the state where the molded shape is maintained in the conveying mold (7) having substantially the same shape as the molding mold (6).

In the take-out zone (S3), as shown in FIG. 1, the box (P1) in the transfer die (7) transferred to the take-out zone (S3) is extruded and provided below the turntable (520). Pressing plate (12) for ejecting boxes to be discharged onto the conveyor (13) as a transportation means
Is provided. The pressing plate (12) is operated by a cam link mechanism (700) as shown in FIG.

The cam / link mechanism (700) includes a pressing plate mounting member (710) to which the pressing plate (12) is mounted, and the pressing plate mounting member (710) so as to move the pressing plate mounting member (710) in the horizontal direction. 710) a pair of rods (72
0) (730), a cam (740) of a plate material that rotates integrally with the cam shaft (103) to rotate the rod (730), and a tension spring (750) that urges the rod (730) to rotate counterclockwise. Consists of.

And in the box-making zone (S1), while the cooling and taking-out work of the box is being performed in the cooling zone (S2) and the take-out zone (S3),
The supply of plate material (P), heating and melting, and bending and assembling work are performed.

Next, a box manufacturing process by the above-described apparatus for manufacturing a heat-sealing box will be described. First, the plate material (P) is supplied from the storage hopper (1) in front of the box making zone (S1) by the supply belt (2),
L-shaped stopper on the upper surface of the molding die (6) that is supplied to the box making zone (S1) and preset to form a box of a predetermined size.
It is set at a predetermined position by (4) and the positioning pusher (40).

And in this box making zone (S1), the hot blade (5) is a plate material.
Before contacting with (P), the plate material (P) set above is set by the second pressing plate (9) on the hot blade (5) side and the first pressing plate (8) on the molding die (6) side. ) Is clamped, and the plate (P) is securely fixed (see FIG. 6). In this state, the hot blade (5) is pressed against the plate material (P), and the V-shaped bent groove is formed and the selvage portion is fused (see FIG. 7).

Then, the hot blade (5) retracts to a predetermined position. At this time, the pair of the first pressing plate (8) and the second pressing plate (9) surely make the plate material.
Since the (P) is sandwiched, the plate material (P) is not lifted up or moved leftward or rightward together with the hot blade (5) by the molten resin attached to the hot blade (5). The ear of the plate material (P) fused to the upper surface of the molding die (6) is, for example,
It may be removed by using a known means such as pressure air.

Furthermore, a pair of first pressing plate (8) and second pressing plate (9)
However, by moving downward while holding the plate material (P), the plate material (P) excluding the ears is pushed into the molding die (6) (see FIG. 8). As a result, the peripheral side wall of the plate material (P) rises up along the inner wall of the molding die (6) with the bent groove as the base line, and the melted parts at the corners of the plate material (P) are crimped to form a box shape. It will be boxed. At this time, the plate member (P) is held by the pair of the first pressing plate (8) and the second pressing plate (9), and the positional deviation is regulated, so that the box (P1) is accurately moved. Molded.

The box (P1) thus formed in the box-making zone (S1)
Is pushed into the conveying mold (7) located below the molding mold (6) by the first pressing plate (8) and the second pressing plate (9) (see FIG. 9). After that, the first pressing plate 8) and the second pressing plate (9) release the holding of the box (P1) and retreat to their respective predetermined positions. Then, the transfer mold with the box (P1) pushed in.
(7) moves downward from the molding die (6) and is transferred to the cooling zone (S2) as the turntable (520) of the transfer means (11) rotates (see FIG. 10). At this time, the next transfer mold (7) is transferred below the molding mold (6), and the transfer mold (7) located in the cooling zone (S2) is taken out of the extraction zone (S3).
Then, a series of work of box making, cooling and taking out is simultaneously carried out.

Box (P1) in the transfer mold (7) transferred to the cooling zone (S2)
Are sufficiently and efficiently cooled by the cooling means.

Then, the transfer mold (7), when the cooling of the box (P1) in the cooling zone (S2) is completed, it is transferred to the unloading zone (S3), in the unloading zone (S3), the protruding plate (12). Is a transfer mold
By entering the inside of (7) and pushing out the box (P1), the box (P1) is discharged downward (see FIG. 1). Ejected box (P1)
Is sent out of the box making device by a conveyor (13).

According to this embodiment, since the plate material (P) is sandwiched by the first pressing plate (8) and the second pressing plate (9), the plate material (P) is pushed into the molding die (6). The peripheral side wall can be erected while preventing the positional displacement of the plate material (P), thereby improving the accuracy of the box making process.

Moreover, since the plate material (P) is sandwiched by the first pressing plate (8) and the second pressing plate (9), the hot blade (5) abuts and separates from the plate material (P). When the blade (5) tries to separate from the plate material (P), the plate material (5) will not be lifted by the molten resin adhering to the hot blade (5) and will not be displaced, so that the box can be accurately Can be manufactured.

Further, since the first pressing plate (8) and the second pressing plate (9) are operated by the cam link mechanism (400) and the cam link mechanism (300), respectively, the first pressing plate (8) Also, it becomes possible to promptly operate and stop the second pressing plate (9) and freely set the speed of operation, that is, to operate at a high speed as a whole while operating slowly only when necessary. This makes it possible to shorten the time required to manufacture the box (P1), speed up the box-making process, and reduce the manufacturing cost. In addition, in the above cam / link mechanism, the first pressing plate (8) and the second pressing plate (8) when sandwiching the plate material (P) with respect to the plate material (P) having different thickness dimensions ( The distance from 9) can be easily adjusted by changing the length of the rod or the mounting position of the mounting member.

Furthermore, since the hot blade (5) abuts and separates from the plate material (P) while the plate material (P) is sandwiched by the first pressing plate (8) and the second pressing plate (9), the plate material (P With the position deviation of () prevented, the bending groove can be formed and the ears can be melted and cut with high accuracy, and the accuracy of the box making process can be further improved.

Moreover, since the hot blade (5) is operated by the cam link mechanism (200), the hot blade (5) can be slowly operated only when necessary and at the same time can be operated at high speed as a whole. Further speeding up can be achieved. And a hot blade (5)
Since it is possible to accurately determine the stop position, it is possible to perform the processing of the bent groove and the fusing of the unnecessary ear portion with high accuracy, and it is possible to form the box with higher accuracy.

In addition, since the cam link mechanism driven by the motor is used for the other actuating mechanism, the box-making process can be further speeded up. Specifically, the speed was about three times faster than that using the conventional cam link mechanism.

Further, since accurate machining can be performed as described above, the heights of the peripheral side walls are not uneven, and therefore the work of uniformly adjusting the heights of the uneven peripheral side walls by a cutter is unnecessary, which is troublesome. The cost can be saved and the manufacturing cost can be reduced.
In addition, it is possible to manufacture various irregularly shaped boxes that require precision.

Also, the box-making work of supplying, positioning, heating and melting and assembling the plate material (P) in the box-making zone (S1), and forcibly cooling and removing the distortion of the box (P1) in the cooling zone (S2) are performed. Since a series of work consisting of cooling work and unloading work for unloading the box (P1) in the unloading zone (S3) can be carried out at the same time, idle time can be greatly reduced, and a side wall is formed around the bottom plate. Folded polygonal box (P1)
Can be manufactured efficiently and at low cost.

Furthermore, since the transfer mold (7) having substantially the same shape as the molding mold (6) is transferred and the molded box (P1) is cooled in the transfer mold (7), the box (P1) is cooled during cooling. Can prevent the distortion from occurring,
A better box (P1) can be manufactured.

In the above examples, as the plate material (P), it is possible to use a strip-shaped material in which unnecessary ears have been removed in advance, to use a material in which a bent groove is formed in advance, and to use a bent groove in advance. It is possible to use one that has been formed and from which unnecessary ears have been removed. Even in these cases, the plate material (P) can be accurately positioned by the L-shaped stopper (4) and the positioning pusher (40) on the upper surface of the molding die (6).

Also, if a more compact device is desired due to equipment space, etc., the cooling zone (S2) and take-out zone (S
It is also possible to provide a single cooling / extraction zone that also serves as 3). In this case, since the cooling means, the pressure plate (12) for discharging the product, the conveyor (13), etc. can be concentrated and installed in one place in addition to the combined use of the zones, a more compact device can be obtained. .

Further, in the above-mentioned embodiment, the apparatus for performing the box making work in the vertical direction is shown. However, for example, the apparatus is tilted by 90 ° and the pushing direction of the plate material (P) is horizontal.
Alternatively, it can be carried out in a state in which the hot blade (5) is rotated by 180 °, and the molding die (6) and the conveying die (7) facing the hot blade (5) are inverted.

Moreover, the movement and stop of the transfer die (7) by the transfer means (11) are not limited to the rotation of the turntable (520) .For example, the transfer die (7) is slid to cool. It can also be carried out by transferring to the zone (S2) and the take-out zone (S3).

In addition, various modifications can be made within a range not changing the gist of the present invention, such as orbiting the conveying die (7) along an elliptical orbit by, for example, a chain conveyor.

<Effects of the Invention> As described above, according to the fusion box manufacturing apparatus of the present invention, the pressing of the plate material into the molding die is performed by the first pressing plate and the second pressing plate. Since the sandwiching is performed in a sandwiched state, the peripheral side wall can be erected and assembled in a state in which the positional displacement of the plate material is prevented. Therefore, the accuracy of the box making process can be improved, and the peripheral side wall after the box making can be improved. It is possible to eliminate the need for a post process such as a cutting work for adjusting the height. Further, since the pressing plate operating means for operating the first pressing plate and the second pressing plate is composed of the pair of cam and link mechanisms, the operation setting for the first pressing plate and the second pressing plate can be performed. Therefore, it becomes possible to slowly actuate the pressing plate only when necessary, such as when the pressing plate comes into contact with the plate material. Furthermore, it becomes possible to smoothly perform the contacting / separating operation of contacting or separating the conveying die provided below the forming die with respect to the forming die by the holding means by the pair of cam / link mechanisms, It becomes easy to set the operation of receiving and conveying the fusion-bonded box after molding. Therefore, the time required to manufacture the box can be shortened, the box-making process can be speeded up, and the manufacturing cost can be reduced.

[Brief description of drawings]

1 is a front view showing the entire apparatus, FIG. 2 is a side view showing the entire apparatus, FIG. 3 is a perspective view showing a state in which a bent groove is formed in a plate material and an ear portion is cut, and FIG. FIG. 5 is a perspective view of a blade, FIG. 5 is a perspective view of a molding die, FIG. 6 is a sectional view showing a state in which a plate material is sandwiched by pressing plates, and FIG. Fig. 8 is a cross-sectional view showing a state of abutting against a plate material. Fig. 8 is a cross-sectional view showing a state where a plate material is sandwiched by a pressing plate and the plate material is pushed into a molding die. And FIG. 10 is a cross-sectional view showing a state where the box is pushed into the transport die, FIG. 10 is a cross-sectional view showing a state where the pressing plate is released from the sandwich and the box is transported by the transport die, and FIG. FIG. 12 and FIG. 13 are schematic configuration diagrams of a pressing plate operating means, FIG. 14 is a schematic configuration diagram of a mechanism for moving a conveying die up and down, Figure is a schematic diagram of a mechanism for actuating the ejector plate for the box extrusion. (P) ... plate material, (6) ... molding die, (8) ... first pressing plate, (9) ... second pressing plate, (300) (400) ... pressing plate operating means Cam link mechanism as

Claims (1)

[Claims] Claim: What is claimed is: 1. A thermoplastic resin plate material having a bent groove formed therein and from which unnecessary ears are removed is sandwiched between a first pressing plate and a second pressing plate to form a tubular shape. In a fusion box manufacturing apparatus in which a side wall surface of the plate material is erected to be bent and assembled in a box shape by being pushed into a mold, a pair of operating the first pressing plate and the second pressing plate, respectively. It is configured so that it can be operated by the pressing plate operating means consisting of the cam link mechanism of
Further, a conveying die for receiving the assembled fusion box is provided below the forming die, and this conveying die is brought into contact with and separated from the forming die by a holding means by a pair of cam / link mechanism different from the above. An apparatus for manufacturing a fusion bonding box, which is configured to be operable.