JPH0719784Y2 - Automatic fusion device for synthetic resin frame end joints - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic folding box forming machine which automatically fuses the bent end joints of a synthetic resin folding box such as expanded polystyrene.

[0002]

2. Description of the Related Art In the joining of both ends of a folding box, in a conventional paper box such as a cardboard box or a thin wooden box, the joining sections are overlapped and mechanically joined by using a hook needle such as a stapler. It was However, if the material is a synthetic resin material, it is not useful for joining wire needles, so the material to be joined must be melted and butt-joined. Therefore, although it is possible to manually combine the two individually, it is extremely difficult to perform them automatically and continuously.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention is an automatic molding machine for a packaging box manufactured from the synthetic resin material as described above, and the packaging box made of the synthetic resin is automatically and continuously provided like a conventional paper box. It is an object of the present invention to provide a device capable of automatically merging both ends of the side plate of a folding box for manufacturing.

[0004]

In order to achieve the above object, according to the present invention, a synthetic resin folding box side plate is bent and deposited at a right angle on the upper part of an underframe main body, one by one. In an automatic folding box molding machine that feeds out onto the wooden mold provided at, and further folds both ends inward with air piston pushers, forms a right-angled small groove in the front-back direction of the lower corner of the wooden mold that corresponds to the frame end joint of the folding box side plate. Also, an electric heater body mounting plate is suspended and fixed in the vicinity of the center of the front part of the underframe main body, and an elevating plate on which a slider at the rear of the electric heater body slides vertically is attached to the upper part of the mounting plate, and the lower end is attached. Attach the drive cylinder support arm to
Hold the drive cylinder and piston rod vertically and hold the electric heater body in the upper part.The upper part of the electric heater body has a heating frame window with a thin fused metal plate attached to the upper end. When the left and right tip joints of the folding box side plates come into contact with each other in the heating frame window at the top dead center of the vertical movement of the body, the electric heater body is lowered by the operation of the electromagnetic switch. It is an automatic fusion device for synthetic resin frame end joints, characterized in that the joints are fused by a plate.

[0005]

The automatic fusing device for joining end portions of the synthetic resin frame of the present invention constructed as described above is constructed by bending and stacking the middle portion of the side plate of the synthetic resin folding box at a right angle on the upper frame body of the automatic folding box forming machine. Draw out one by one onto the wooden pattern provided in the center of the main body,
Furthermore, since both ends are folded inward by the heads of air piston pushers installed on the left and right to form a rectangular frame shape, the 45 ° inclined joint surfaces of the left and right frame ends abut in the right-angled small groove at the lower end of the wooden mold. On the other hand, the air cylinder and piston rod at the lower end of the electric heater body mounting plate raises the electric heater body by the operation of the electromagnetic relay, and the heating frame window at the upper end rises into the right-angled small groove at the lower end of the wooden mold and stops at top dead center. To do. At this time, the joint surfaces at the left and right frame ends of the folding box side plate are adjusted in time so as to just abut in the heating frame window of the electric heater body. Then, the electric heater body starts to descend at the next time point of contact, and the fusion metal plate at the upper end of the heating frame which is descending at this moment fuses the left and right joints to form a complete box frame and is pushed out.

[0006]

EXAMPLES Examples will be described with reference to the drawings.
1 is obtained by bending and accumulating the middle portion of the Styrofoam resin plate S at a right angle on the upper part of the underframe body F of the automatic folding box forming machine (A).
Feeding out one by one onto the wooden pattern P provided in the middle part of the underframe main body F,
In addition, the air piston pusher A. In the folding box forming machine (A) that folds inward at P, a right-angled small groove G is formed in the front-rear direction of the lower end corner of the wooden mold P, and the electric heater E is provided near the front center of the underframe main body F. Fix the mounting plate 1 by hanging it down,
An elevating plate 3 on which a slider 2 of the electric heater E slides vertically is attached to the upper part of the mounting plate 1, a drive cylinder support arm 4 is attached to the lower end of the mounting plate 1, and a drive cylinder and a piston rod 5 are vertically arranged. Holding and holding the electric heater body E on the upper part, the heating frame window 7 having the thin fused copper plate 6 attached to the upper end is formed on the upper part of the electric heater body E. It is a fusion device.

[0007]

Since the present invention is constructed as described above, it has the following effects. In the heating frame in the right-angled small groove at the lower end of the tree shape of the automatic folding box forming machine, the 45 ° inclined joint surfaces at the left and right frame ends of the folding box contact. At this time, the electric heater is at the top dead center and starts descending at the next time. At that time, the fusion copper plate 6 at the upper end of the heating frame fuses the joint surface and descends. After the lowering of the body, it is extruded into a box frame, and this operation is sequentially repeated to obtain a highly efficient result as an automatic folding box forming machine.

[Brief description of drawings]

FIG. 1 is a partially cutaway left side view showing an electric heater body operating device of an automatic folding box forming machine.

2 is a partially cutaway front view of FIG. 1. FIG.

FIG. 3 is a partially cutaway front view of the automatic folding box forming machine.

[Explanation of symbols]

 (A) Automatic folding box forming machine F Underframe body of automatic folding box forming machine S Folding box material P Folding box wooden AP Air piston pusher G Folding box wooden bottom right small groove E Electric heater body 1 Electric heater body mounting plate 2 Electric heater body slide 3 Electric Heater Elevating Plate 4 Drive Cylinder Support Arm 5 Drive Cylinder and Piston Rod 6 Fusion Copper Plate 7 Heating Frame Window

Claims (1)

[Scope of utility model registration request] 1. A synthetic resin folding box side plate is bent at a right angle and deposited on the upper part of the underframe main body one by one, and is fed out onto a wooden mold provided in the central part of the main body, and both ends are inwardly pushed by an air piston pusher. In an automatic folding box forming machine that folds in, a right-angled small groove is formed in the front-back direction of the lower edge corner of the wooden mold corresponding to the frame end joint of the folding box side plate, and an electric heater body is provided near the center of the front part of the underframe main body. Fix the mounting plate downward, and attach the lifting plate on the upper part of which the slider at the rear of the electric heater slides up and down, and attach the drive cylinder support arm to the lower end to hold the drive cylinder and piston rod vertically. The upper part of the electric heater is held, and the upper part of the electric heater has a heating frame window with a thin fused metal plate attached at the upper end. If the left and right tip joints of the folding box side plates come into contact with each other in the window, the electromagnetic An automatic fusing device for a synthetic resin frame end joining part, characterized in that the electric heater body is lowered by the operation of the switch, and at this moment, the joining part is fused by the heated descending fused metal plate at the upper end of the heating frame.