JPH1086233A - Simultaneous multi-piece molding of low temperature insulation and heat simulation cases and simultaneous multi-piece molding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to simultaneously mold a large number of cases of a complicated shape by introducing two strips of composite material, back to back, into a molding machine and perforating a heat-welding line after heat- welding both lateral edges and a semicircular bottom plate, and separating a group of cases from the composite material using a cutter. SOLUTION: A composite material 2 is wound around a pair of upper/lower take-up cylinders 4, 4, and the two material strips from the cylinders are supplied, back to back, with a material supply mechanism 5. Further, heat-welding lines which form the bottom parts and lateral edges of cases to be formed as moldings, are provided side by side on the composite material 2 in the width direction at a heat-welding mechanism 9. After that, the heat-welding lines which form the bottom parts of the cases are provided in parallel in the longitudinal direction of the composite material 2 using the heat-welding mechanism 9a. In addition, a peforated cut line for profiling the whole case is incised with the help of an incision mechanism 14, and the group of the cases are cut off the composite material 2 by a heat line 15 on a cutter mechanism 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding machine for simultaneously and automatically molding a large number of cases for cooling and warming.

[0002]

2. Description of the Related Art Heretofore, it has been relied on press working to apply two types of composite material of a case for cooling and keeping heat of this kind on two sheets and apply a perforation (cutting in a perforated shape) to the shape of the case. In this case, the pressure of the press had to be increased because of the irregularities of the cuts. However,
When the press pressure becomes excessive, the cutting depth becomes uneven,
As a result, not only the case could not be cut evenly because the case came off from the composite material during cutting, but also many cases could not be molded at the same time, which was a major obstacle to mass production.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a first step and a second step in which a heat welding wire for forming the outer shape of a case is formed in order to enable the simultaneous molding of many cases.
It is an object of the present invention to make it possible to perform simultaneous molding of a large number of cases by performing the cuts in separate steps and making equal cuts in a large number of cases by a mashing (perforated cut) in a third step.

[0004]

Means for Solving the Problems Two strips of a band-shaped composite material having a cooling and heat retaining property are intermittently introduced into a molding machine from a winding drum with their upper and lower sides back to back, and a product is produced in a first step. A welding process of a heat welding wire forming both side edges of the case is performed by a heat welding mechanism, and a heat welding process of forming a semicircular bottom plate of each of the multiple cases in a circular shape is also performed by the heat welding mechanism of the second step. By the cutting mechanism of the third step, a multi-cut (perforated) cut is made on the heat-welded wire which is also heat-welded in the previous step of many cases.
When the composite material is pulled out of the third step by the signal of the end of the operation of the cutting mechanism, the case group is separated from the composite material by a cutter using a hot wire to complete one process, and the signal of the composite material of the next process is obtained by the signal. The process of drawing into the molding machine is intermittently repeated, and a large number of cases are simultaneously molded for each process.

[0005]

[Function] Two composite materials having the back sides of each other back to back are introduced into a molding machine, and the first step of thermal welding is performed to thermally weld portions corresponding to both side edges of a large number of cases to be molded.
In accordance with the signal of the end of welding, heat welding is performed to make the semicircular bottom plate of each case circular by the heat welding in the second step, and the composite material is moved by the signal of the end of welding. The two side edges and the bottom plate group are moved to the third step and stopped, and according to the stop signal, each case is placed on the respective center lines of the heat welding lines by the heat welding in the previous two steps by the cut processing in the third step. A cut is made by cutting (perforation), the composite material is pulled out of the third step by a signal of the cut end, the case group is cut off by a cutter using a hot wire, and one step is completed. Then, the composite material is formed as described above. The process of intermittently and automatically introducing the case is repeated to mass-produce the case.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A molding machine (1) shown in FIGS. 1, 2 (A, B) and 3 accommodates bottles and cans for beverages by using a composite material (2) described below having cooling and heat retaining properties. A large number of cases (3) to be simultaneously molded, and the molding machine (1)
Is a composite material (2) wound around a pair of upper and lower winding drums (4, 4), and each composite material (2) is supplied such that the back sides thereof are back to back. The case (3) in the supply mechanism (5) and the composite material (2)
Many (8, 8a, 8b) of the heat welding lines (8, 8a, 8b) forming the bottom (7) and the side edges (11, 11) at the time of completion.
The first step (10) having a heat welding mechanism (9), which will be described later, is provided in parallel in the width direction of the composite material (2). The second step (10a) is shown in FIGS. 2 (A, B)
As shown in FIG. 3, a heat welding wire (8) for forming a bottom plate (12) of the case (3) upon completion of the case (3) is formed on the composite material (2) by a heat welding mechanism (9a) described later.
a second step (10a) of providing a large number of c and 8d) parallel to the longitudinal direction of the composite material (2), and a third step (1)
0b) is a perforated score line (13) that forms the whole of the case (3) when the composite material (2) is completed as shown in FIG. 1, FIG. 2 (A, B) and FIG. The third step (10b) having a cutting mechanism (14) described later is also provided, and the hot wire (1) described later is connected to the step (10b).
The molding machine (1) is configured by disposing a cutter mechanism (16) described below for separating the group of cases (3) from the composite material (2) by 5).

As shown in FIG. 1, the material supply mechanism (5) causes the composite material (2) to be wound in a belt shape on shafts (18, 18) around upper and lower frame members (17, 17). The rolls (4, 4) are supported, and the composite materials (2, 2) wound on the rolls (4, 4) are paired with guide rolls such that the back sides thereof are back to back. (19, 19)
The composite material (2, 2) is supplied at a constant speed between the guide rolls (19a) of the first step (10) while giving an appropriate tension to the composite material (2, 2) by tension rollers (20, 20). Is configured.

The heat welding mechanism (9) of the first step (10)
Consists of a lower mold (21) fixed as shown in FIGS. 1, 2 (A, B) and 3, and an upper mold (22) moving up and down via a cylinder (40). Mold (21)
A plurality of impulse heaters (23) for processing the heat welding wires (8, 8a) are arranged on the upper die (22) so as to face up and down in the width direction of the composite material (2, 2). ,
The heat welding mechanism (9a) of the second step (10a) is connected to a lower mold (21a) fixed as shown in FIGS. 1, 2 (A, B) and 3 and a cylinder (40a). The upper die (22a) is freely movable up and down, and the lower die (21a)
a) and the upper die (22a) are provided with a plurality of impulse heaters (23) for processing the heat welding wire (8b) facing vertically in the longitudinal direction of the composite material (2, 2). The heat welding mechanism (9) operates via the cylinder (40) of the first step (10) to operate the upper mold (22) and the lower mold (2).
1), the composite material (2, 2) is sandwiched, and heat welding lines (8, 8a) by heat welding are applied as shown in FIG. 3, and then the upper mold (22) rises and stands by. Then, the second
The heat welding mechanism (9a) of the step (10a) is
b) to lower the upper mold (22a),
The composite material (2, 2) is sandwiched between the upper mold (22a) and the lower mold (21a), and a heat welding wire (8b) by heat welding is applied as shown in FIG. .

The cutting mechanism (1) of the third step (10b)
4) is a fixed bearing (25, 25a, 25) on a gantry (24) as shown in FIGS. 1, 2 (A, B), 6 and 7.
b), a screw rod (26) is supported between the fixed bearing (25a) and movable bearings (27, 27) are screwed into the movable bearing (27, 27) so as to be movable left and right, and provided on the upper surface of the movable bearing (27). Rolls (2) in the axial grooves (28, 28).
9, 29) in a free state, and the movable bearing (2) is supported.
7) are joints (30, 3) at each end in different directions as shown in FIG.
Movable bearings (27a, 2a) having grooves (28a, 28a) for supporting short and small rolls (29a, 29a) via
7a) are connected and provided, and the rolls (29, 2
9, 29a, 29a) on the upper surface of the composite material (2,
2) a support plate (31) for supporting the screw rod (26);
Actuator mechanism (32) that gives left and right rotational movement to the actuator
The forward and reverse rotation of the screw (26) via a chain (36) mounted on a driven gear (33) at the end of the screw (26) and an output gear (35) of a motor with brake (34). The movable bearing (27, 27)
Are configured to reciprocate in the direction of arrow P shown in FIGS. 6 and 7.

The cutting blade (37) by the Thomson blade of the cutting mechanism (14) is connected to the heat welding wire (8, 8a, 8b).
A case blade die (38) having the same outer shape as the case (3) is arranged on the bottom surface of the movable plate (39) as shown in FIG. 4 and FIG. 39) is a cylinder (40) supported on the gantry (24a) shown in FIG.
b), it can be moved up and down freely through the second step (10).
When the upper die (22a) is lifted after the heat welding operation of (a) is completed and there is a standby signal, the composite material (2, 2) shown in FIG.
Moves from the second step (10a) to the third step (10b) and stops, the stop signal (4) shown in FIG.
1) is clamped and fixed on a receiving table (42) via a cylinder (40a), and the signal of the fixing activates the cylinder (40b) in FIG. 1 to lower the movable plate (39) in FIG. Then, the group of case blades (38) is combined with the composite material (2,
When the surface of 2) is brought into pressure contact, the signal starts the motor (34) to rotate the screw (26) to one side, and the movable bearings (27, 27) on the screw (26).
Is moved slowly in the direction of the arrow. The movable bearing (27, 2
7a), the rolls (29, 29a) are pressed on the receiving plate (31) via the movable plate (39) while rotating and rotating by the contact pressure with the receiving plate (31). Making a perforated cut into the composite material (2, 2) by cutting the case blade die (38);
The movable bearings (27, 27a) correspond to chain lines (27, 27) shown in FIG.
When the position of the movable plate (3) is reached, the movable plate (3)
When 9) rises and stands by by the reverse operation of the cylinder (40), the signal rotates the motor (34) in the reverse direction to restore the movable bearings (27, 27a), and at the same time, the cylinder (40a) The stopper (41) is restored and the composite material (2, 2) is released by the reverse operation of.

The cutter mechanism (16) is shown in FIGS.
As shown in (A) and FIG. 8, the cylinder (40b) is provided so as to be connected to the third step (10b), and when there is a signal for releasing the composite material (2, 2) by the stopper (41). Is actuated to move the bar (43) holding the distal end of the composite material (2, 2) through the rod (42) in the direction of the arrow (P), whereby the composite material (2,
When 2) is pulled out from the third step (10b) into the cutter mechanism (16) and stopped, the composite material (2, 2) is pulled by a sucker (44) shown in FIG.
2) is pressed on the receiving plate (31a, 31a) and fixed,
The case (3) group is cut off by the heating wire (15) shown in FIG. 8 by the fixed signal, and the suction cup (44) group releases the composite material (2, 2) by the operation end signal, and the signal By operating the cylinder (40b), the bar (43) is returned to the start position (46) in FIG. 8 and the tip of the composite material (2, 2) is electromagnetically chucked (47, 47).
47), the cylinder (40b) is actuated by the signal, the tip of the composite material (2, 2) is clamped by the bar (43), and the composite material (2 2) is pulled out in the direction of arrow P to complete one process, and this process is repeated so that a large number of cases (3) are simultaneously molded.

As shown in FIG. 5B, the composite material (2, 2) is a polyester film material (4).
8) Vacuum deposition (49) using aluminum powder is performed, and a foamed polyethylene film material (50) is integrally polymerized by lamination processing.

[0013]

Since the present invention is configured as described above, it has the following effects.

The molding machine of the present invention is capable of simultaneously molding a large number of cases having complicated shapes. Therefore, by drastically reducing the cost, it is possible to stabilize the price and to supply the case at a low price and in large quantities. I can respond.

In the cutting mechanism of the present invention, the cut (perforated shape) is formed by the minimum contact between the case blade die and the curved surface of the roll and the instantaneous cutting edge contact, so that the cut line is made uniform. Of course, the same depth can be achieved, so that the cases can be efficiently separated from each other, and the cut end of the case can be smartly finished, so that the commercial value can be significantly increased.

According to the molding method of the present invention, since the heat welding of the outer shape for shaping the shape of the case is performed separately in the first step and the second step, the simultaneous molding of a large number of cases has a great effect.

According to the molding method of the present invention, the case is cut out of the composite material, and the two steps of heat welding are performed separately, so that a smooth molding effect can be exhibited even in complicated processing steps. I can do it.

[Brief description of the drawings]

FIG. 1 is a partially omitted side view of a molding machine for performing a molding method of the present invention.

FIG. 2A is a partial plan view in which the upper part is omitted from the line XX in FIG. 1; (B) shows the lower mold (21, 2) corresponding to the upper mold (22, 22a) of the chain line G in (A).
It is a top view of 1a).

FIG. 3 shows two types of heat welding locus by the molding method of the present invention and a perforated locus by mashing.

FIG. 4 is an enlarged plan view of a case alone showing a heat welding line of the case by heat welding according to the method of the present invention and a case blade shape.

FIG. 5A is a bottom view of a case blade-type cutting blade. (B) is a partial enlarged side sectional view of the composite material.

FIG. 6 is a partially enlarged side sectional view taken along the line NN in FIG. 1;

FIG. 7 is a plan view of the OO line in FIG. 6;

FIG. 8 is an enlarged plan view in which a part of a line YY in FIG. 1 is omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Molding machine 2 Composite material 3 Case 4 Winding drum 5 Material supply mechanism 6 Opening 7 Bottom 8 Heat welding wire 8a Heat welding wire 8b Heat welding wire 9 Heat welding mechanism 9a Heat welding mechanism 10 First step 10a Second step 10b First step 3 process 11 side edge 12 bottom plate 13 cutting line 14 cutting mechanism 15 heating wire 16 cutter mechanism 17 frame body 18 shaft 19 guide roll 20 tension roll 21 lower die 21a lower die 22 upper die 22a upper die 23 impulse heater 24 gantry 24a gantry 25 fixed Bearing 25a Fixed bearing 25b Fixed bearing 26 Screw rod 27 Movable bearing 27a Movable bearing 28 Groove 28a Groove 29 Roll 29a Roll 30 Joint 31 Receiving plate 31a Receiving plate 32 Actuator mechanism 33 Driven gear 34 Motor 35 Output gear 36 Chain 37 Cutting blade 38 Case Type 39 Movable plate 40 Sunda 40a cylinder 40b cylinder 41 the stopper 42 rod 43 bar 44 sucker 46 start position 47 electromagnetic chuck 48 film material 49 vacuum deposited 50 film material

Claims (2)

[Claims] 1. A belt-shaped two-section composite material (2, 2) is intermittently introduced into a molding machine (1) with its back sides facing each other, and in a first step (10), the composite material (2, 2) is introduced. ), A plurality of heat welding wires (8, 8a) for forming a plurality of vertical outer shapes of the case (3) to be a product are formed, and in a second step (10a), a horizontal outer shape of the case (3) is formed. Hot welding wire (8
b), and in a third step (10b), a perforated cut line (13) is formed in the heat welding wire (8, 8a, 8b), and the case (3) is cut by the cut line (13). A method for simultaneously molding a large number of cases for cooling and warming, wherein a plurality of cases (3) are simultaneously molded by separating a group from the composite material (2, 2) individually. 2. A composite material (2, 2) having two sides with front and back surfaces, which is provided back and forth in the width direction of the composite material (2, 2) during intermittent introduction into a molding machine (1) with back to back. A heat welding mechanism (9) for applying heat welding wires (8, 8a) for forming a plurality of vertical outer shapes of a case (3) to be a product with a plurality of heaters (23); A plurality of upper and lower heaters (23) provided above and below the extension direction form a plurality of heat welding wires (8) forming a plurality of lateral outer shapes of the case (3).
b) a heat welding mechanism (9a) and the heat welding wire (8,
8a, 8b) and a cutting mechanism (14) for forming perforated cutting lines (13) for separating the case (3) from the composite material (2, 2). , Thermal insulation molding equipment.