JP2001310400A - Method and apparatus for assembling synthetic resin box, and synthetic resin box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform work efficiently by heat-welding the duplex parts of the side piece bodies of a synthetic resin box, to assemble even a large box by one operator, to enable outside welding and inside welding by changing the direction of a piece constitution body to be mounted on a table, to improve the appearance of the assembled synthetic resin box, and to improve the commercial value of the box. SOLUTION: An apparatus for assembling the synthetic resin box in which the adjacent side piece bodies are laid to partially overlap each other to make welding parts, and a box body is formed by welding the welding parts is provided with a press mechanism which can move in the X axis direction, a positioning mechanism which is arranged at a position opposite to the press mechanism and can move in the X axis direction, a movable body which can move in the Y axis direction to be inserted between the press mechanism and the positioning mechanism, a control mechanism which is arranged at a position opposite to the movable body and can move in the Y axis direction, and a lift mechanism which moves one welding part to be separated from the other welding part. The movable body is fitted with a heater and a hot blade heated by the heater.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a synthetic resin box made of a foamed sheet or plastic cardboard.
The present invention relates to an assembling apparatus for forming a box by superimposing and welding side pieces to each other, an assembling method thereof, and an assembled synthetic resin box.

[0002]

2. Description of the Related Art Conventionally, most of synthetic resin corrugated cardboard materials used for storing and transporting various articles are made of polypropylene resin (PP) having good strength and durability. The bottom part and side wall of the container are punched out of the material in the unfolded state, the side wall part is raised, one side wall piece is overlapped with the adjacent side wall piece and assembled into a box, and the corner of the box is made of resin. The box was fixed by screws or metal fittings. A used synthetic resin box that has been damaged or whose service life has passed has been discarded as industrial waste, and has been disposed of by landfill or incineration. However, recently, due to environmental problems, regulations on industrial waste have become more stringent, which makes it difficult to dispose of such waste by landfilling, incineration, and other means. It is required to reuse it as a raw material.

[0003]

However, in order to reuse the above-mentioned waste of the synthetic resin box as a raw material, it is necessary to pulverize it into a pellet and melt it by heat. In the process, various kinds of different materials such as a polypropylene resin or the like, a synthetic resin material different from the resin material constituting the main body, glass fibers contained in synthetic resin screws, metal fittings such as nails, etc. must be removed. For this reason, not only extra steps but also considerable costs are required for the dissimilar material removing step, which has been an obstacle to reuse. Therefore, when assembling the box, it is conceivable to bond the polymerized portion of the side piece with an adhesive, but at present, there is no appropriate adhesive for polypropylene resin. Therefore, Japanese Patent Application Laid-Open No. 6-1344 proposes that the overlapped portion of the side wall is welded by heat.

The present invention has been made to solve the above-mentioned problems, and, like the invention of Japanese Patent Application Laid-Open No. 6-1344, discloses a method of welding a polymerized portion of a side piece of a synthetic resin box by heat. But to do that work efficiently,
Even a large box can be operated by one person, and it is intended to enable external and internal welding by changing the direction of the synthetic resin box placed on the table. An object of the present invention is to make the appearance of a synthetic resin box assembled by welding beautiful and improve the commercial value.

[0005]

According to a first aspect of the present invention, there is provided an apparatus for assembling a synthetic resin box according to the present invention, wherein a part of adjacent side pieces is overlapped to form a welding portion, and the welding portion is welded. An assembly device for a synthetic resin box forming a box body, a pressing mechanism movable at least in the X-axis direction, a positioning mechanism disposed at a position facing the pressing mechanism and movable at least in the X-axis direction, A movable body that can be inserted at least in the Y-axis direction so as to be inserted between the pressing mechanism and the positioning mechanism, a suppression mechanism that is arranged at a position facing the movable body and that can be moved at least in the Y-axis direction, A push-up mechanism for moving the welded portion in a direction away from the other welded portion is provided, and a heater and a hot blade heated by the heater are provided on the movable body. According to a second aspect of the present invention, in the synthetic resin box assembling apparatus according to the first aspect, a suction mechanism is provided on a surface of the pressing mechanism on the positioning mechanism side, instead of the lifting mechanism. I do. The third aspect of the present invention is the first or second aspect.
In the apparatus for assembling a synthetic resin box described in (1), the heater and the hot blade are divided into several parts, and are detachably attached to the movable body. According to a fourth aspect of the present invention, in the apparatus for assembling a synthetic resin box according to the first or second aspect, the surface of the hot blade is covered with Teflon resin. According to a fifth aspect of the present invention, there is provided a method for assembling a synthetic resin box in which adjacent side walls are partially overlapped to form a welded portion, and the welded portion is welded to form a box. Wherein the welding portion is positioned between a pressing mechanism and a positioning mechanism, the welding portion is pressed and set by the pressing mechanism and the positioning mechanism, and then the pressing mechanism is raised and the push-up is performed. By operating a mechanism, a gap is formed between one of the welded portions and the other of the welded portions, a movable body having a hot blade heated by a heater is inserted into the gap, and the movable body is In a state where the welding portion is interposed in the gap, the welding portion is pressed by the pressing mechanism and the positioning mechanism to melt the welding portion, and then the push-up mechanism is operated, and the one welding portion and the other welding portion are operated. Gap between parts Form, the movable member is retracted from said gap, characterized in that fusing the welded portion by pressing again the weld portion by said positioning mechanism and the pressing mechanism. The synthetic resin box of the present invention according to claim 6 is a synthetic resin box in which a part of adjacent side pieces is overlapped to form a welded part, and the welded part is welded to form a box body. An unwelded portion is formed at the edge of the side piece forming the welded portion. The synthetic resin box assembling apparatus according to the present invention according to the present invention, wherein a part of adjacent side pieces is overlapped to form a welded part, and the welded part is welded to form a synthetic resin box. An assembly device, wherein a table on which the synthetic resin box is placed, first pressing means for pressing one of the side pieces between the table, and the other of the side pieces as the side piece Lifting means for separating from one of the bodies, a hot blade for welding the welding portion, and a second means for pressing the welding portion between the table and the table.
And pressing means. The method for assembling a synthetic resin box according to the present invention according to claim 8, wherein a part of adjacent side pieces is overlapped to form a welded portion, and the welded portion is welded to form a synthetic resin box. A step of placing the synthetic resin box before welding on a table for positioning, fixing one of the side pieces on the table between the table, A step of separating the other of the pieces from one of the side pieces, a step of arranging a heat blade between the welding portions, and a step of arranging the heat blade at a welding portion of the adjacent side piece. A step of pressing the welded portion, a step of pressing the welded portion for a predetermined time, and a step of separating the other of the side pieces from the hot blade; and A step of separating a blade from one of the side pieces; and A step of pulling out said heat cutter after is al spaced, after the heat cutter is drawn, characterized by comprising the step of pressing the other of said side piece body on one of the side pieces thereof. In the method for assembling a synthetic resin box according to the present invention, a part of adjacent side pieces is overlapped to form a welded part,
A method of assembling a synthetic resin box in which a box is formed by welding the welded portion, wherein a step of separating the other side piece from one of the side piece bodies, A step of disposing a blade, a step of pressing the welded part in a state where the hot blade is disposed on a welded part of the adjacent side piece, and a step of pulling out the hot blade after pressing the welded part for a predetermined time ,
Pressing the other of the side pieces against one of the side pieces after the hot blade is pulled out, wherein the step of disposing a hot blade between the welded portions includes the other of the side pieces. Characterized in that the hot blade is arranged at a position where the hot blade is not brought into contact with the edge of the blade. According to a tenth aspect of the present invention, there is provided a synthetic resin box according to the eighth aspect.
Alternatively, it is assembled by the method for assembling a synthetic resin box according to claim 9.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention relates to an apparatus for polymerizing adjacent side pieces and welding a polymerized surface, an assembling method thereof, and an assembled plastic resin box. By doing so, it is possible to increase the efficiency and reliability of the assembling work, to further enhance the appearance of the assembled synthetic resin box, and to enhance its commercial value.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a side sectional view showing another embodiment of the present invention. The synthetic resin box is constituted by a side piece having three bent portions, and the side piece forms a flap on the side. In FIG.
Reference numeral 1 denotes an assembling apparatus main body, in which horizontal plates (substrates) 2 and 3 are disposed in upper and middle stages, and a substrate 4 is disposed in a lower stage, and columns 5 and 6 provided in a vertical direction (X-axis direction). Are connected by Furthermore, the horizontal plate 2 has an air cylinder 10
And vertical direction (X-axis direction) by this air cylinder 10.
And a pressing mechanism 7 configured to be movable. Also,
Below the pressing mechanism 7, a positioning mechanism 11 for positioning the overlapping portion of the side pieces of the synthetic resin box 9 is arranged, and the pressing surface 8 of the pressing mechanism 7 and the pressing surface 12 of the positioning mechanism 11 are opposed to each other. is there. Furthermore, in order to adjust the height of the positioning mechanism 11 according to the size of the synthetic resin box,
A gear (not shown) and a rack 35 meshing with the gear are provided on a rotation shaft 34 of the handle 33, and a support 41 is provided below the gear 35. The positioning mechanism 11 includes an air cylinder 3 of a lifting mechanism (separation mechanism) 31.
6 is installed to operate in the vertical direction (X axis direction),
A push-up bar 37 attached to the air cylinder 36 and a push-up body 38 attached to the tip of the push-up bar 37 are configured to move up and down. Further, a movable body 25 is disposed on a column 6 that connects the horizontal plate 3 provided in the middle section of the main body 1 and the substrate 4 provided in the lower section of the main body 1, and the movable body 25 is attached to the column 6. Horizontal direction (Y-axis direction) by air cylinder 28
It is configured to be movable. A heater 20 and a hot blade 18 heated by the heater 20 are provided at the tip of the movable body 25. By the operation of the air cylinder 28, the heater 20 and the hot blade 18 are positioned with respect to the pressing mechanism 7. It operates to move in and out of the mechanism 11 in the horizontal direction (Y-axis direction). Here, the hot blade 18 is configured by winding a Teflon tape around the surface of a plate-like copper plate. Note that it is preferable to apply Teflon plating instead of Teflon tape from the viewpoint of strength. The movable body 25 is connected to the operating shaft 23 of the air cylinder 22 provided on the horizontal plate 3 and
The movable body 25 is also connected to the support plate 24 that is movable in the axial direction) and the support body 26 that is connected to the support plate 24 in the orthogonal direction.
(Axial direction). Also, the main body 1
An air cylinder 29 is provided on the substrate 4 provided at the lower stage, and the positioning mechanism 11 is provided on the air cylinder 29.
In order to press the side piece 16 of the synthetic resin box 9 in contact with the lateral surface of the box to a predetermined position, there is provided a suppression mechanism 30 which operates in the horizontal direction (Y-axis direction).

Since the present invention is constructed as described above, in order to assemble the synthetic resin box, first, the bonding length and position of the side pieces 15 and 16 of the synthetic resin box 9 to be polymerized. Is determined, and the cylinder 2 is attached to the movable body 25 according to the value.
Heater 20 and hot blade 18 mounted via
Adjust the length of. Further, according to the size of the box, the handle 33 is rotated, and the gear (not shown) attached to the rotation shaft 34 and the rack 35 meshing with the gear adjust the height of the positioning mechanism 11, and The adjusting body 14 is moved and set so that the other end of the synthetic resin box 9 to be assembled is held at a predetermined position by the adjusting body 14. Next, the air cylinder 22 is operated to move the movable body 2.
The vertical position is adjusted so that the heater 20 and the hot blade 18 attached to the 5 intervene between the one side piece 15 and the other side piece 16 to be superposed. Then, the air cylinder 10 attached to the horizontal plate 2 is actuated to press the pressing mechanism 7.
And the side piece 15 of the synthetic resin box 9 to be welded is
The side piece 16 is temporarily pressed from above and below by the pressing mechanism 7 and the positioning mechanism 11, and the side piece 15 and the side piece 16 are fixed by the pressing mechanism 7 and the positioning mechanism 11.

Therefore, the pushing mechanism 7 is raised by the operation of the air cylinder 10 and the air cylinder 36 of the pushing-up mechanism 31 is actuated to push up the pushing-up rod 37 attached to the air cylinder 36 so that the pushing-up rod 37 is moved upward. The side wall 15 of the synthetic resin box 9 is pushed up by the push-up body 38 attached to the front end of the box to separate the side piece 15 from the side piece 16, and a gap is provided between the side piece 15 and the side piece 16. Next, the air cylinder 28 provided on the column 6 is operated to move the movable body 25 in the horizontal direction (Y-axis direction), and the hot blade 18 attached to the tip of the movable body 25 and heated by the heater 20 is moved. It is located between the welded portion 39 of the side piece 15 of the synthetic resin box 9 and the welded part 40 of the side piece 16. Then, the air cylinder 10 is operated again to lower the pressing mechanism 7, and the air cylinder 36 of the lifting mechanism 31 is operated downward to push down the lifting rod 37 attached to the air cylinder 36, and The welding part 39 of the body 15 and the welding part 40 (overlapping part) of the side piece 16 are pressed by the pressing mechanism 7 and the positioning mechanism 11 while holding the hot blade 18 therebetween, and the welding part 39 of the side piece 15 is The hot blade 18 is brought into contact with both opposing surfaces of the welding portion 40 of the piece 16, and the welding portion 39 and the welding portion 4
The opposing surface of 0 is melted. After a lapse of a predetermined time (heating temperature 2
20 to 280 ° C. for several seconds) The air cylinder 10 is operated in the reverse direction to raise the pressing mechanism 7 and the lifting mechanism 3
By operating the first air cylinder 36, the air cylinder 36
Push up the push-up bar 37 attached to the
The push-up body 38 attached to the tip of the box 7 pushes up the side piece 15 of the synthetic resin box 9 to create a gap between the side piece 15 and the side piece 16 and further operates the air cylinder 28 to move the movable body. 25 is moved to retract the hot blade 18 from the melting position. When the hot blade 18 is retracted, the hot blade 18 is
It is preferable to slightly pull up in the axial direction and then pull out in the Y-axis direction. Therefore, the pressing mechanism 7 is immediately lowered by the operation of the air cylinder 10, and at the same time, the air cylinder 36 of the lifting mechanism 31 is operated downward to press the welding portion 39 of the side piece 15 and the welding portion 40 of the side piece 16. Pressed by the mechanism 7 and the positioning mechanism 11, the welding portion 39 and the welding portion 40 are pressed.
Are welded. Thereafter, the same operation as described above is performed on the other welded portions of the synthetic resin box 9, so that the assembly of the synthetic resin box can be performed extremely easily and completely.

FIG. 2 shows another embodiment of the present invention.
Instead of the lifting mechanism in the above embodiment, the suction mechanism 13 is provided on one or both of the opposing surfaces of the pressing mechanism 7 and the positioning mechanism 11, and after setting the synthetic resin box at a predetermined position,
The position is not changed, and when the side piece 15 of the synthetic resin box 9 is pushed up and pushed down, it is made to be adsorbed by the pressing mechanism 7. This is the same as in the embodiment.

Hereinafter, still another embodiment of the present invention will be described in detail. FIG. 3 is a schematic structural layout diagram showing an assembling apparatus 50 according to the present embodiment, FIG. 4 is a schematic view showing a hot blade portion of the assembling apparatus according to the present embodiment, and FIG. FIG. 6 is a schematic view showing a lifting means of the assembling apparatus according to the present embodiment, and FIG. 7 is a schematic view showing a third pressing means of the assembling apparatus according to the present embodiment. .
The synthetic resin box is placed on a table 52 extending in the longitudinal direction. In this assembling apparatus 50, by changing the mounting direction of the synthetic resin box, external and internal mounting,
Furthermore, welding can be performed even in a two-piece synthetic resin box. The person performing the operation is located on the left side of FIG.
Stand in front of you). The synthetic resin box is placed on the table 52 from the left.
Place on top. At this time, the synthetic resin box is moved from the left side of the figure to the right side (the rear side of the table table 52) and installed at a predetermined position in the assembling apparatus. Assembly device 50 according to the present embodiment
A hot blade 54 inserted in the overlapping portion of the side pieces in order from one side of the table base 52;
, A second pressing means 58 for pressing the other one of the side pieces to the table 52, and a side pressing piece for disposing the hot blade 54 at the welding portion. Lifting means 60 for lifting the other upward, and third pressing means 6 for pressing the other of the side pieces from above
2 and a stop member 68 for stopping the synthetic resin box inserted from the front at a predetermined position. First holding means 56, second holding means 58, third holding means 6
2. Each of the lifting means 60 and the hot blade 54 has a movable mechanism 64 such as a cylinder which can be moved up and down so as to approach and separate from the table table 52. Each of these movable mechanisms 64 is installed on a vertical frame 66. Hot blade 54, first pressing means 5
The respective vertical frame bodies 66 to which the sixth holding means 58 and the lifting means 60 are attached are fixed to the table base 52. However, these vertical frames 66 are slidable with respect to the table table 52, and the intervals between the vertical frames 66 are provided so as to be adjustable. By adjusting the interval between the vertical frame bodies 66 in this way, it is possible to cope with synthetic resin boxes having different sizes.

The welding mechanism having the hot blade 54 will be described with reference to FIGS. 3, 4, and 8. FIG. First, the hot blade 54
A Teflon tape is wound around the surface of a plate-shaped copper plate. Note that it is preferable to apply Teflon plating instead of Teflon tape from the viewpoint of strength. A heater 70 is provided at the hot blade holding portion on the base side of the hot blade 54.
Here, the heater 70 is disposed in the width direction of the table
4 in the longitudinal direction. The heater 70 is detachably attached to each divided portion. Further, it is preferable that the heat blade 54 is also divided into a plurality of parts corresponding to the division of the heater 70 and is detachably attached to each divided part. By partially detachably attaching the heating blade 54 and the heater 70 in this way, it is possible to cope with a difference in the size of the synthetic resin box, and to adjust a welding portion and a welding width depending on the material and use of the synthetic resin box, for example. can do. Hot blade 54
And the heater 70 are moved by the movable mechanism 64 to the table 5.
2 and can be moved close to and away from the table 2, and is moved by the movable mechanism 63 in the front-rear direction of the table 52 (direction perpendicular to the width direction of the table 52).

The first pressing means 56 and the second pressing means 58 will be described with reference to FIGS. 3, 5 and 8. FIG. The first holding means 56 and the second holding means 58 are respectively installed on the vertical frame 66. The first holding means 56 is located on the front side of the table 52 with respect to the second holding means 58,
It is arranged between the holding means 58 and the welding mechanism. The first holding means 56 is formed of a thin metal strip having a small thickness, and has a length substantially corresponding to the entire width of the table base 52. The first holding means 56 has movable mechanisms 6 at both ends.
4 and operates so as to be able to approach and separate from the table table 52. The second holding means 58 has a length substantially equal to the length of the hot blade 54 in the width direction. The second pressing means 58 includes a movable mechanism 64 and operates so as to be able to approach and separate from the table table 52. Also, the second holding means 58
Is disposed between the first holding means 56 and the lifting means 60. In addition, without providing the lifting means 60,
The second holding means 58 may have the function of the lifting means 60.

The lifting means 6 will be described with reference to FIGS. 3, 6, and 8.
0 will be described. The lifting means 60 is composed of a plurality of suction disks and is installed on the vertical frame 66. In this case, the suction disk causes the inside of the suction disk to be in a reduced pressure state by sucking air, and sucks the synthetic resin box in contact with the suction disk. The lifting means 60 is disposed on the front side of the table 52 with respect to the third pressing means 62, that is, between the third pressing means 62 and the second pressing means 58. This lifting means 6
Numeral 0 includes a movable mechanism 64 and operates so as to be able to approach and separate from the table table 52.

The third pressing means 62 will be described with reference to FIGS. 3, 7, and 8. FIG. The third holding means 62 is installed on the vertical frame 66. The third holding means 62 is provided on the front side of the table 52 with respect to the stop member 68, that is, between the stop member 68 and the lifting means 60. This third
The holding means 62 includes a movable mechanism 64, and
It operates so as to be able to approach and separate from 2.

As shown in FIG. 3 and FIG.
Has a U-shaped cross section and is arranged on the table 52. The stop member 68 is disposed on the rear side of the table 52 with respect to the third pressing means 62. The stop member 68 is attached so as to be movable in the front-rear direction of the table 52 and fixed. As shown in FIG. 8, a pair of stopper members 69 are provided on both sides of the table base 52. The stop member 69 is provided so that the first pressing means 56 does not come into contact with the first pressing means 56.
Is disposed on the front side of the table table 52. The stop member 69 is attached so as to be movable and fixed in the width direction of the table 52.

Next, a method of assembling the synthetic resin box will be described with reference to FIGS. 9 to 22 are conceptual views of the assembling apparatus according to the above-described embodiment when viewed from the side. In this embodiment, a case where an external type synthetic resin box is assembled will be described. First, the positions of the stop member 68 and the stop member 69 are adjusted and fixed according to the size of the synthetic resin box. Further, the hot blade 54, the first pressing means 56,
The positions of the second holding means 58, the lifting means 60, and the third holding means 62 are adjusted and fixed. After performing the initial setting in this manner, as shown in FIG. 9, the synthetic resin box 9 is placed on the table base 52 so as to be disposed between the stopper members 69 from the front of the table base 52. At this time, the side piece 16 is folded so that the edge of the side piece 16 on the near side is located lower than the edge of the side piece 15 on the back side. And the synthetic resin box 9
Is moved rearward along the table table 52, and FIG.
As shown at 0, the synthetic resin box 9 is brought into contact with the stopper member 68.

After the synthetic resin box 9 is brought into contact with the stopper member 68, the operation button is pressed to start assembly. Subsequent steps can be performed automatically. First, as shown in FIG. 11, the first holding means 56 and the third holding means 62 are brought close to the table 52, and the first holding means 56 and the third holding means 62 are combined with the table 52. The synthetic resin box 9 is fixed with the side pieces 15 and 16 of the resin box 9 interposed therebetween. At this time, it is preferable that the first pressing means 56 be arranged so as to press the one side piece 16 at a position as close to the side piece 15 as possible without interposing the other side piece 15. Further, it is preferable that the third holding means 62 is arranged so as to hold the vicinity of the bent portion on the side piece 15 side. Next, as shown in FIG. 12, the first holding means 56 and the third holding means 62 keep the pressed state, and move the lifting member 60 close to the table table 52 side.
The side piece 15 is held by suction. Then, as shown in FIG. 13, by moving the lifting member 60 in the direction away from the table table 52, the side piece 15 is lifted in the direction away from the table table 52. Next, as shown in FIG. 14, the hot blade 54 is moved in a direction approaching the table 52. Then, as shown in FIG. 15, the hot blade 54 is moved to the inner side of the table 52, and is disposed between the welded portion of the side piece 15 and the welded portion of the side piece 16. In this state, the hot blade 52 is heated by the heater 70. Next, as shown in FIG. 16, the hot blade 54 is moved in a direction approaching the table 52 to press the welded portion of the side piece 16. At substantially the same timing as this operation, as shown in FIG. 17, the second holding means 58 is moved in a direction approaching the table table 52, and pressed so that the welded portion of the side piece 15 is pressed against the hot blade 52. I do. At this time, the hot blade 54 is arranged so as not to contact the edge of the side piece 15. Then, by holding the pressed state for a predetermined time by the second pressing means 58, the welded portion between the side piece 15 and the side piece 16 is
It is melted by the hot blade 54. Next, as shown in FIG. 18, the second pressing means 58 is moved in a direction away from the table 52. Further, the lifting member 60 moves the side piece 15 in the direction away from the table 52 together with the movement of the second pressing means 58 or with a slight time lag from the movement of the second pressing means 58. Also, with a slight time lag from the movement of the lifting means 60, the hot blade 54 is moved in a direction away from the table 52. Then, as shown in FIG. 19, the hot blade 54 is moved to the front side of the table base 52 while the side piece 15 is moved in the direction away from the table base 52 by the lifting means 60. Thereafter, as shown in FIG.
The pressing means 58 is moved in a direction approaching the table 52 to press the side piece 15 against the side piece 16. Then, by holding the pressed state for a predetermined time by the second pressing means 58, the welded portion where the side piece 15 and the side piece 16 are melted is polymerized and fixed. Thereafter, as shown in FIG. 21, the second holding means 58 is moved in a direction away from the table 52. Through the above steps, the assembly of the synthetic resin box 9 by heat welding is completed. Then, as shown in FIG. 22, the synthetic resin box 9 is pulled out to the near side of the table table 52.

FIG. 23 shows a method of mounting the synthetic resin box on the table 52 when assembling the internal type synthetic resin box. As shown in the figure, when assembling the internal-type synthetic resin box, it is folded so that the edge of the side piece 16 on the near side is positioned lower than the edge of the side piece 15 on the back side. In. Subsequent steps are the same as those in the above-described embodiment, and a description thereof will be omitted.

FIG. 24 shows a case where the synthetic resin box is separated into two-piece members. FIG. 3 shows a method of mounting the synthetic resin box on the table 52 when assembling an external type synthetic resin box. As shown in the figure, when the synthetic resin box is separated into two pieces, the edge of the side piece 16 on the near side is connected to the side piece 1 on the back side.
5 is folded below so as to be located below the edge, and one is joined. Then, the synthetic resin box is turned upside down and assembled in the state shown in FIG. Note that the other assembling steps are the same as those in the above-described embodiment, and a description thereof will be omitted.

FIG. 25 is an exploded view of the synthetic resin box 9 according to the present embodiment, FIG. 26 is an assembly view of the synthetic resin box 9 according to the present embodiment in the case of external attachment, and FIG. 27 is a view according to the present embodiment in the case of internal attachment. FIG. 3 is an assembly diagram of a synthetic resin box 9. As shown in FIGS. 25 and 26, the synthetic resin box 9 includes one side piece 15 and the other side piece 16. The side piece 15 has an ear 15A for forming the welded portion 39, and has flaps 15B on both sides. An unwelded portion 42 is formed at the edge of the side piece 15, that is, at the edge of the ear 15A. Further, a welded portion 39 is formed on one side piece 15, and a welded portion 40 is formed on the other side piece 16. On the other hand, as shown in FIG. 27, the synthetic resin box 9 according to the present embodiment in the case of internal attachment has a welded portion 39 formed on the side piece 15 and a welded portion 40 formed on the ear 16A of the side piece 16. Is done. In addition, side piece 1
A non-welded portion 42 is formed at the edge of No. 5.

As described above, in this embodiment, in any case, the positions of the welded portions 39 of the side blades 15 and the welded portions 40 of the side blades 16 of the synthetic resin box 9 in any case. However, it is characterized in that it is adjusted to be slightly inside from the edge of the side piece 15 or the side piece 16 and the non-welded portion 42 is provided at the end of the side piece 15 and the side piece 16. The synthetic resin material melted at the time of welding does not protrude from the wall surface of the container, so that the appearance is extremely beautiful and the commercial value is not impaired. Further, in the present embodiment, the vertical movement (X-axis direction) of the pressing mechanism 7, the horizontal movement (Y-axis direction) and the vertical movement (X-axis direction) of the movable body 25, and the horizontal movement of the restraining mechanism 11. The movement in the direction (Y-axis direction) and the up-down direction (X-axis direction) is performed by each air cylinder connected to the main body 1 or each mechanism, respectively. Simplification can be achieved. In the present embodiment, the heaters 20 and 70 and the hot blades 18 and 54 which can be detachably attached are
It is divided into a plurality of parts, and the number required for the work is connected by screws and attached to the movable body 25 etc., so only the necessary parts of the heater and the hot blade are necessary according to the size of the synthetic resin box Can be heated, and the required energy can be saved. In the embodiment shown in FIG. 1 or FIG. 2, it is possible to simultaneously weld a plurality of welding locations of the container by installing heaters on both sides of the movable body and making one of the positions variable. Alternatively, two apparatuses shown in FIG. 1 or FIG. 2 may be installed so as to face each other so that both ends of the container are welded simultaneously. In this embodiment, the concave portion 1 is provided at the intermediate portion of the hot blade.
9, the heat from the heater concentrates on the hot blade,
Therefore, it is extremely effective for increasing thermal efficiency. Further, since the end of the synthetic resin box does not come into contact with the recess 19, the non-welded portion 42 can be formed at the edge of the side wall. Therefore,
When the melted synthetic resin material is pressed in the molten state, the joint portion of the synthetic resin box can be beautifully held without protruding from the joint portion. Further, in this embodiment, when the surfaces of the heat blades 18 and 54 are covered with Teflon resin, the Teflon resin has a fine space on the surface, so that the Teflon resin has a heat-retaining effect and can improve thermal efficiency. Furthermore, since the synthetic resin material constituting the synthetic resin box does not adhere to the hot blades 18 and 54, not only welding can be performed reliably, but also there is no burn when contacted, so it is safe. Further, the life of the hot blades 18 and 54 can be extended.

In the present embodiment, the heating temperature of the hot blade, the contact time with the material, and the like can be controlled to optimum conditions according to the thickness and length of the material to be welded. In addition, the synthetic resin box in the present embodiment can be configured using a foam sheet in addition to plastic cardboard. In addition,
In the above embodiment, the X-axis direction is described as the vertical direction, and the Y-axis direction is described as the horizontal direction. However, if the X-axis direction and the Y-axis direction are perpendicular to each other, it is not necessarily limited to the vertical direction and the horizontal direction. It is not something that can be done. Further, in this embodiment, since the assembling apparatus and the assembling method for mounting the synthetic resin box on the horizontal table stand are provided, even a large box can be operated by one person, and furthermore, the one-piece structure to be mounted on the table By changing the direction, the external and internal welding can be performed. Further, the second pressing member performs a cooling action, and the welding can be performed in a short time. Then, after the welding is completed, the second pressing member is lifted. The hot blade is provided several mm inward from the rear end of the heat-sealed surface so that the molten material does not melt and melt into the box body.

[0024]

As described above, the present invention does not use a material different from the material of the container body, such as screws and metal fittings, when assembling the synthetic resin assembly container. Therefore, the operation can be simplified, and the cost required for the processing can be reduced at the same time. In addition, since the welding surface of the container is not exposed to the outside, the appearance is not impaired by welding, and the beautiful appearance can be maintained. Therefore, the effect is great, such as the commercial value can be enhanced. Furthermore, even a large box can be operated by one person, and the external and internal welding can be performed by changing the direction of the piece component placed on the table.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a side sectional view showing another embodiment of the present invention.

FIG. 3 is a side sectional view showing still another embodiment of the present invention.

FIG. 4 is a schematic view showing a hot blade portion of the assembling apparatus according to the embodiment.

FIG. 5 is a schematic view showing first and second holding means of the assembling apparatus according to the embodiment.

FIG. 6 is a schematic diagram showing lifting means of the assembling apparatus according to the present embodiment.

FIG. 7 is a schematic view showing a third holding means of the assembling apparatus according to the embodiment.

FIG. 8 is a schematic view of the assembling apparatus according to the present embodiment as viewed from above.

FIG. 9 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 10 is a schematic view illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 11 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 12 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 13 is a schematic diagram illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 14 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 15 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 16 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 17 is a schematic view illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 18 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 19 is a schematic view illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 20 is a schematic view illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 21 is a schematic view illustrating steps of a method for assembling a synthetic resin box according to the present embodiment.

FIG. 22 is a schematic view illustrating steps of a method of assembling a synthetic resin box according to the present embodiment.

FIG. 23 is a schematic view illustrating another method of assembling the synthetic resin box according to the present embodiment.

FIG. 24 is a schematic view illustrating another method of assembling the synthetic resin box according to the present embodiment.

FIG. 25 is an exploded perspective view of the synthetic resin box according to the present embodiment.

FIG. 26 is an assembled perspective view of the synthetic resin box according to the present embodiment.

FIG. 27 is an assembled perspective view of another synthetic resin box according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 7 Pressing mechanism 8 Pressing surface 9 Synthetic resin box 10 Air cylinder 11 Positioning mechanism 12 Pressing surface 13 Suction mechanism 14 Adjuster 15 Side piece 16 Side piece 18 Hot blade 19 Depression 20 Heater 22 Air cylinder 25 Movable body 28 Air Cylinder 29 Air cylinder 30 Suppression mechanism 31 Push-up mechanism 32 Air cylinder 36 Air cylinder 37 Push-up rod 38 Push-up body 39 Welding part 40 Welding part 41 Lower support 42 Non-welding part 50 Assembly device 52 Table table 54 Heat blade 56 First pressing means 58 Second pressing means 60 Lifting means 62 Third pressing means 64 Movable mechanism 66 Vertical frame 70 Heater

Claims (10)

[Claims] 1. A synthetic resin box assembling apparatus for forming a box by welding a part of adjacent side pieces to form a welded part and welding the welded part. A movable pressing mechanism, a positioning mechanism disposed at a position facing the pressing mechanism and movable at least in the X-axis direction, and a movable mechanism at least in the Y-axis direction so as to be inserted between the pressing mechanism and the positioning mechanism. A movable body, a suppression mechanism disposed at a position facing the movable body and movable at least in the Y-axis direction, and a push-up mechanism for moving one welded part in a direction away from the other welded part. Provided,
An apparatus for assembling a synthetic resin box, wherein a heater and a heat blade heated by the heater are provided on the movable body. 2. The apparatus for assembling a synthetic resin box according to claim 1, wherein a suction mechanism is provided on a surface of the pressing mechanism on the side of the positioning mechanism, instead of the lifting mechanism. 3. The apparatus for assembling a synthetic resin box according to claim 1, wherein the heater and the hot blade are divided into several parts and are detachably attached to the movable body. . 4. The apparatus for assembling a synthetic resin box according to claim 1, wherein the surface of the hot blade is covered with Teflon (registered trademark) resin. 5. A method for assembling a synthetic resin box in which a part of adjacent side pieces is overlapped to form a welded part and the welded part is welded to form a box body, wherein the welded part is pressed. Positioned between the mechanism and the positioning mechanism, the welding portion is pressed and set by the pressing mechanism and the positioning mechanism, then, while raising the pressing mechanism and operating the lifting mechanism, one of the Forming a gap between the welded portion and the other of the welded portions, inserting a movable body provided with a hot blade heated by a heater into the gap, and interposing the movable body in the gap, The welding portion is pressed by the pressing mechanism and the positioning mechanism to melt the welding portion, and then the push-up mechanism is operated to form a gap between one of the welding portions and the other of the welding portions. Moving the movable body out of the gap A method of assembling a synthetic resin box, wherein the welding part is retracted, and the welding part is pressed again by the pressing mechanism and the positioning mechanism to weld the welding part. 6. A synthetic resin box in which a part of adjacent side pieces is overlapped to form a welded part, and the welded part is welded to form a box body, wherein the side piece forming the welded part is provided. A synthetic resin box having an unwelded portion formed at an edge of a body. 7. A synthetic resin box assembling apparatus in which adjacent side pieces are overlapped to form a welded portion, and the welded portion is welded to form a box body. And a first pressing means for pressing one of the side pieces between the table, a lifting means for separating the other of the side pieces from one of the side pieces, and An apparatus for assembling a synthetic resin box, comprising: a hot blade for welding a welding portion; and second pressing means for pressing the welding portion between the table and the table. 8. A method of assembling a synthetic resin box in which a part of adjacent side pieces is overlapped to form a welded part, and the welded part is welded to form a box body. Placing the synthetic resin box on the table and positioning it, fixing one of the side pieces on the table between the table and the other, and setting the other of the side pieces to one of the side pieces And a step of disposing a heating blade between the welding portions; a step of pressing the welding portion in a state where the heating blades are disposed at the welding portions of the adjacent side pieces; and a step of pressing the welding portion. After pressing for a predetermined time, separating the other of the side pieces from the heat blade, and separating the hot blade from one of the side pieces after separating the other of the side pieces from the heat blade Removing the hot blade after separating the hot blade from one of the side pieces. And a step of pressing the other of the side pieces against one of the side pieces after the hot blade is pulled out. 9. A method for assembling a synthetic resin box in which adjacent side pieces are overlapped with each other to form a welded portion, and the welded portion is welded to form a box. Separating the other one of the side pieces from one of the side pieces, arranging a hot blade between the welding portions, and the welding section in a state where the hot blade is arranged at a welding portion of the adjacent side piece. And pressing the welded portion for a predetermined time and then pulling out the hot blade, and after the hot blade is drawn out, pressing the other of the side pieces against one of the side pieces. A method of assembling a synthetic resin box, wherein in the step of disposing a hot blade between the welded portions, the hot blade is disposed at a position where the hot blade is not brought into contact with the other edge of the side piece. 10. A synthetic resin box assembled by the method for assembling a synthetic resin box according to claim 8.