JPS6194720A - Molding device of doll - Google Patents

Abstract

PURPOSE:To make work of rotation molding facilities efficient, by providing a robot mechanism part so that two loci to be formed by turning two molds of two units of molding die holding mechanism parts to cooling chambers from a heating chamber are made to cross with the robot mechanism part. CONSTITUTION:A heating furnace B is provided at a place where turning loci of molds are crossed with each other between molding die holding mechanism parts A, A and cooling chambers C, C are provided respectively on the turning loci of the molds. A robot mechanism part D is provided so that the same is made to cross with the two loci to be formed by turning the molds of the molding die holding mechanism parts A, A to the cooling chambers C, C from the heating furnace B. The robot mechanism part D is provided with an opening and closing machine 600 of a mold lid and a raw materials loading machine 900.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic manufacturing apparatus for manufacturing the head and other parts of a molded product made of thermoplastic resin.

[Prior art]

Conventionally, when molding thermoplastic resin foam products such as dolls using a mold, manual labor is required for moving the mold, injecting raw materials, opening/closing the lid of the mold, heating process, cooling process, and removing the mold. In many cases, this is done by
Mechanization of each work is desired.

[Problem that the invention seeks to solve]

Therefore, it takes a lot of manpower, and the work environment and work efficiency are poor.
There was a problem that mass production was not possible and the cost was high.

[Means for solving problems]

The present invention provides an apparatus for obtaining a thermoplastic resin foam product by injecting a fixed amount of a thermoplastic synthetic resin raw material in the form of a sol into a mold and heat molding the mold, which includes a mold capable of molding into a predetermined shape;
The spider is equipped with a spider that holds the mold and is rotatable around its axis, and a drive that allows the spider to pivot between the heating furnace and a jib mechanism that controls the opening/closing operation of the mold including the raw material injection mechanism. This is a molding apparatus for dolls, etc., which has a mechanism and is arranged to move and take out a mold attached to a spider taken out from the heating furnace into a cooling tank provided for cooling the mold.

〔Example〕

Embodiments of the present invention will be described using the drawings.

The molding device is a mold holding mechanism A of a mold (hereinafter referred to as a mold).
, A, a heating furnace B, a cooling chamber C9C as a cooling tank, and a robot mechanism as a jib mechanism are automatically controlled by a control panel E.

Two mold holding mechanisms A are provided, and two mold holding mechanisms A are provided.
, A is provided at a position where the turning trajectory of the mold intersects with the heating furnace B. The cooling chamber C1C is provided exclusively for each of the mold holding mechanisms A and A on the rotation locus of each mold. The robot mechanism has two mold holding mechanisms A, which intersect any one of the two trajectories formed when the mold in A rotates from the heating furnace B to the cooling chamber C.
- a mold lid opening/closing machine 60' [l],
Demolding machine 700, mold blowing machine 800. Raw material injection machine 900
have. Each machine is supported so as to be able to move up and down and turn, and is provided with a lower position where it operates relative to the mold, and a swing and standby position where it is raised.

The mold holding mechanism A holds a mold 200 at the tip of an arm 102 provided on a conveyor table, that is, a rotary table 101.
It is formed by attaching the .

That is, the rotary table 101 has rolling wheels or rollers 105.10 rolling on a track 104 laid on a base 103.
5, a pinion 108 supported by a bearing on a fulcrum pin 106 set upright on the base 103, connected to a geared motor 107 with a brake mounted on the rotary table 101, and provided on the underside of the rotary table 101. The drive mechanism is provided with a drive mechanism which can rotate on the base 103 about the fulcrum pin 106 by meshing with a rank 109 provided in an arc shape on the base 106 with the fulcrum pin 106 as the center.

The arm 102 is supported by a support 110 provided on the rotary table 101, and the arm 102 is attached to the outer shaft 1.
021 and an inner shaft 1022, which are connected to geared motors 111 and 112, respectively, and an orthogonal shaft perpendicular to the arm 102, that is, a spider spindle 113, is attached to the tip of this arm 102, but the spider spindle 116 is a cylindrical body. Inner shaft 1022 via 114
It is connected to the outer shaft 1021 through the miter gears 115 and 116, and rotates around the axis of the spindle 116 ("rotation °") and around the axis of the arm 102.
), rotatable.

Spider spindle 1160 Both ends have Spider N7i1
7 is attached, and a plurality of molds 200 are attached to the surface of the spider 117° 117 opposite to the spindle 116.

A limit switch 118 is provided on the base 106 so that the rotary table 101 can be stopped at three positions: the raw material injection/demolding position of the mold 200 group, the heating position, and the cooling position.
It is designed to be stopped and locked by the brake operation of the motor 107.

In addition, the drive section of the arm 102 is equipped with a control section so that the arm 102 can be stopped and locked when the group of 20 mold holes is horizontally arranged in a fixed direction at the raw material injection/mold removal position. However, the rotation speed of the spider spindle 113 and the moving speed of the rotary table 101 can also be controlled.
The molds 11 are arranged in a line and removably fixed to the mold 11, and the four frames 201 are arranged in parallel and fixed to the mounting plate 202. The mounting plate 202 is fixed to the spider 117.

The mounting plate 202 has clamp columns 203 projecting from four locations, and the top of the clamp columns 203 is provided with a locking portion 204.

The mold lid 210 is provided corresponding to the arrangement of the mold 200. That is, ten lids 210 are held on each of four bars 211 so as to be able to move up and down through the handle.
0 is equipped with a spring 220 that is biased to create a uniform gap between the top surface of the lid and the bar 211. bar 21
1. A bar 212 is provided on the upper part of the bar 212 so as to be orthogonal to each bar, and a pair of clamp hooks 216 are pivotally attached to the bar 212 via a clamp mounting plate 215 with a pin 221 at a position where the bar 212 engages with the clamp column 203. A spring 219 is mounted between the lamp hooks 216 and 216 to reduce the distance between them.

A column 214 is further provided through the bar 212 at a position that is in contact with and away from the upper surface of the clamp hook 216. The portion 217 has a contact portion 218 with the clamp hooks 216, 216 at the lower part. In this case, the gravity of the column 2140 is smaller than the restoring force of the spring 219, and unless the abutting portion 217 is pressed downward, the column 2140 will be placed and supported on the closed club hooks 216, 216. Further, magnetic bodies 213, 213 are fixed to the upper surfaces of both ends of the bar 212 so as to be able to come into contact with the electromagnet 602.

Heating furnace B uses a burner as a heat source and is a forced hot air circulation type mold 20.
The spider 117 to which 0 is attached is a hook large enough to rotate around the arm 102 and spindle 116, and there are notches 301, 601 on both sides of the spider 117 that allow the arm 102 to rotate.
At the entrance through which the mold 200 enters and exits, a door 302 as a furnace cover supported by a chino is provided so as to be movable up and down by a cylinder having one end of the chino fixed to a piston. A burner 606 and a circulation fan 304 are provided in the furnace to blow hot air onto the mold, and an exhaust fan 05 is provided on the furnace ceiling.

The burner filter 06 uses a downward combustion type propane gas burner, and inside the furnace there are devices for automatic temperature control, for temperature recording, and for temperature recording.
Each temperature sensor is equipped with a digital temperature display, and the temperature can be automatically controlled, and the heating time can also be controlled with a timer.

Note that the openings of the notches 301, 301 are closed when the heating furnace C is in operation, and are used for opening and closing of the door 602, rotation of the arm 102, and circulation fan 304. The rotation of the exhaust fan 3050, the ignition of the burner 306, etc. are also controlled in conjunction with this.

That is, the opening and closing of the door of heating furnace B and the spider arm 102
swirling and rotating, circulation fan 604 and exhaust fan 60
All rotations of arm 10 are interlocked.
2, the door 602 is always open when each fan 304,
At this time, the burner is also extinguished when the rotation of the burner 305 is stopped, which is considered to save energy and protect the working environment.

The cooling chamber C has a size that allows the rotation of the spider 117 to which the mold 200 is attached, and includes a notch 401 that serves as an entrance for the arm 102 and an entrance for the molds 200, 200. A curtain or shutter 2 is provided at the entrance and exit of the molds 200, 200 so that it can be opened and closed by a motor 405, and a curtain-like curtain is suspended from the notch 401.

Inside the cooling chamber C, a nozzle for spraying pressurized water and a drainage pit are provided.In addition, an air cooling system and a fan 406 for blowing off water droplets are provided on the side, making it possible to perform gradual cooling by combining water cooling and air cooling. An exhaust fan 404 is provided to exhaust hot air and steam generated by cooling.

The operating time of the nozzle and fan 406 is controlled by a timer, and the opening and closing of the shutter 402, the rotation of the arm 102, and the operation of the nozzle, fan, etc. are automatically controlled.

The robot mechanism is a mold lid opening/closing machine 600. demolding machine 700,
Demolding leak detection and blowing machine 800. It consists of a raw material injection machine 900, which is a raw material injection mechanism, and a support machine 500 that holds each machine in a suspended form.

The support machine 500 has an arm 502 having an index section 501 at its tip and is rotatably connected to a column 503, so that each machine provided on the index section 501 faces the mold position.

The index portion 501 is attached to the tip of the arm 502 via a cylindrical column 511 fixed to the tip.

A shaft is rotatably supported in the hollow part of the column 511, and a gear is mounted on the circumferential surface of the lower end of the shaft exposed from the column 511, and four support arms 514 are arranged radially around the shaft at the lower end. It is fixedly installed.

A pinion is provided on the column 511 and meshes with the gear via a geared motor 515 with a brake fixed to the column 511.

At the tips of the four support arms 514 are cylinders 5171°5.
172 , 5173 , and 5174 are provided, respectively, and a mounting flange 521 is fixed to the lower end of each cylinder 517 .

Further, a guide column is provided at the end of the support arm 514, and a guide rod that is inserted into the guide column is protruded from the mounting flange 521.
This is to guide the lifting and lowering of each machine connected to the.

Note that each machine is fixedly suspended from the mounting flange 521 in an arrangement convenient for the molding process.

Furthermore, the rotation stop positions of the arm 502 and the index section 501 are detected by a limit switch, and a locking mechanism is also provided at the stop position.The rotation speed can also be controlled, and each movement of the robot mechanism is automatically controlled by signals. It is possible to operate it.

The mold lid opening/closing machine 600 is formed by fixing an electromagnet 602 and a cylinder 606 to a frame 601, and a mounting flange 5.
A frame 601 is fixed to 21 and suspended.

The electromagnet 602 is in contact with the magnetic body 216 of the bar 212, and the cylinder 606 is in contact with the piston rod 604.
are provided at positions where the tips thereof abut against the abutting portion 217 of the column 214.

In addition, the cylinder 603 is equipped with an electromagnet 60 in the working fluid pressure capacity.
2 are each connected to an operating power source for automatic control.

The demolding machine 700 is adapted to the arrangement of the mold 200 and is equipped with a chuck jaw part. It consists of a demolding leak detection section equipped with a detection pin, and one mold 200 has one nozzle and one detection pin.
provided for.

The raw material injection machine 900 has a nozzle for injecting raw material sol into the mold 200.

In addition, near the column 503 of the robot mechanism, a chute or conveyor for receiving molded products is installed below the turning trajectory drawn by the demolding section 700.

This chute or conveyor is provided with a supporting rod, a horizontal bar, or a blowing rod at a height that can contact the molded products hanging from the demolding section 7oo and rotating to force the molded products that do not fall down to fall. It's like forcing someone to do something.

In addition, a boiling mechanism for degreasing and shaping the recovered molded products is installed in parallel with the molding equipment as necessary.

Next, the process of molding the plastic raw material sol will be explained. For convenience, it is assumed that one mold holding mechanism A1 of the mold holding mechanism A has the raw material injected into the mold 200 and has been cooled in the cooling chamber C via the heating furnace B, and the other mold holding mechanism A2 is Assume that the condition is in heating furnace B.

The rotary table 101 of the mold holding mechanism A1 is connected to the motor 107.
The group of molds 200 is moved to the demolding/raw material injection position. Here, the rotary table 101 is locked, and the arm 102 is set and locked at a position where the four rows of the molds 200 are lined up horizontally and in a predetermined direction.

On the other hand, the arm 502 of the robot mechanism is rotated by the motor 507, moved to the demolding/raw material injection position of the mold holding mechanism A1, and locked.

First, the shaft is rotated by the motor 515 and the mold 20 is
The mold lid opening/closing machine 600 is positioned above group 0 and locked.

Next, the opening/closing machine 600 is lowered by the cylinder 5171, and the electromagnet 602 is input to lock the mold lid 210 to the opening/closing machine via the magnetic body 216, and the cylinder 606 is actuated to open the clamp hooks 216, 216. Mold 20
The engagement between the 0 group and the mold lid 210 is released. Then, the opening/closing machine 600 is raised by the cylinder 5171 while holding the mold lid 210 at the bottom, and the opening/closing operation is completed.

Next, the shaft is unlocked, the shaft 512 is rotated, and the demolding machine 700 is positioned and locked above the group of molds 200. Then, the demolding machine 700 is lowered by the cylinder 5172, and after gripping the molded product with a chuck saw, it is raised, and the demolding is completed.

Subsequently, the shaft is unlocked and rotated, and the demolding leak detection and blowing machine 800 is positioned over the group of empty molds 200 and locked. Then, the machine is lowered by the cylinder 5175, and after demolding leak detection and blow cleaning are completed, the machine is raised by the cylinder 5173.

Next, the shaft is unlocked and rotated, and the raw material injector 900 is positioned over the group of cleaned molds 200 and locked. Then, the injection machine 900 is lowered by the cylinder 5174 to a position where the opening of the nozzle faces the opening of the mold 200, and after completing injection, the injection machine 900 is raised and returned to the standby position.

Finally, unlock the shaft and rotate it.

The opening/closing machine 600 holding the mold lid 210 is positioned below and lowered by the cylinder 5171. Then, at the position where the electromagnet 602 and the magnetic body 216 are in contact with each other, the electromagnet 602
The 0 input is released, the clamp hooks 216° 216 are closed by the cylinder 603 at a position where the clamp hooks 216° 216 can engage with the locking portion 204 of the clamp column 206, and the closing of the mold 200 is completed.

In addition, since the mold holding mechanism A1 is equipped with two snow sliders 117 and 117, the same operation can be continued for the mold 200 on the other side by rotating the snow slider spindle 116. Be done.

When the raw material injection into the mold 200 of the mold holding mechanism A1 is completed, the rotary table 101 is unlocked and rotates, stopping at the heating position where the mold 200 is accommodated in the heating furnace B.
locked.

After the heating furnace B accommodates the mold 200, the door 602 is closed and the furnace B is heated by the burner 605. At this time, the spider spindle 116 is rotated around the axis of the spindle and around the axis of the arm 102, and the mold 2
A molten skin is formed on the 00 inner wall in good condition.

After the heating is completed, the door 602 is opened, the rotary table 101 is rotated after being unlocked, the mold 200 is moved into the cooling chamber C, and the mold 200 is locked.

After the shutter 402 of the cooling chamber C is lowered, pressure water is sprayed from a nozzle and the fan 403 is operated to cool the chamber.

Here too, the spider spindle 116 is cooled while rotating, and the molten skin within the mold 200 is efficiently cooled and solidified.

The other mold holding mechanism A2 finishes heating at the heating position when the mold holding mechanism A1 is in the cooling position or demolding/raw material injection position, and is moved to the demolding/raw material injection position after cooling. Then, the robot arm 502 is rotated to the demolding/raw material injection position of the mold holding mechanism A2, and the same operation as that for the mold 200 of the mold holding mechanism A1 is automatically performed.

In the above embodiment, the machine was configured to be movable by turning around an axis in the vertical direction and moving in a vertical line, but it is also possible to install the machine along an axis on a rotatable support with the horizontal axis as the rotation axis. , it can also be configured to move by horizontal linear motion.

〔Effect of the invention〕

According to the present invention, it is possible to provide a device that can automatically perform the molding of thermoplastic resin without requiring manual labor, and it is possible to improve the efficiency of work by automating rotation molding equipment. It is suitable for mass production and can be produced at extremely low cost.

[Brief explanation of drawings]

Figure 1 is a slope view, Figure 2 is a plan view, Figure 3 is a partial side view, Figure 4 is a vertical sectional view of the heating furnace, Figure 5 is a side view of the cooling chamber, and Figure 6 is a burner. , FIG. 7 is a side view thereof, FIG. 8 is a partially cutaway side view taken along line II in FIG. 3, FIG. 9 is a plan view taken along line II in FIG. ■Longitudinal cross-sectional view of the line,
Fig. 11 is a plan view of the device, Fig. 12 is a side view thereof, and Fig. 12 is a side view of the device.
Figure 3 is a partially enlarged view of Figure 12, Figure 14 is Figure 13 IV
It is a longitudinal cross-sectional view taken along the IV line. A... Mold holding mechanism, B... Heating furnace, C... Cooling chamber. D... Robot mechanism, E... Control panel, 101...
Rotary table, 102... Arm, 106... Base, 104... Orbit, 105..., Roller, 106...
...Fulcrum pin, 107°°° motor, 108... Binion, 109... Rack, 110... Abutment, 111
．． 112... Motor, 113... Spider 2 pindle, 114... Cylindrical body, 115, 116... Miter gear, 117... Spider, 118... Limit switch, 200... Mold, 201 ...Frame, 20
2...Mounting plate, 203...Clamp column, 204
...Locking part. 210...Lid, 211.212...Spring, 213
...magnetic material, 214...column, 215...ri-
Lamp mounting plate, 216... Clamp hook, 217,
218... Contact portion, 219, 220... Spring, 22
1... Pin, 601... Notch, 602... Door,
606...Burner, 304...Circulation fan, 305
...Exhaust fan, 401...Notch, 402...Shutter, 403...Fan, 404...Exhaust fan, 405...Motor, 500...Support machine, 501...
・Index section, 502...Arm, 503.511
...Column, 514...Support arm, 515...
Motor, 517... Cylinder, 521... Mounting flange, 600... Mold lid opener, 601... Frame, 602... Electromagnet, 606... Cylinder, 604
... Piston Rondo, 700... Demolding machine, 800.
...Mold leak detection and blowing machine, 900...Material injection machine, Patent applicant Takara Do Co., Ltd. Dobashi Kikai Co., Ltd. Agent Patent attorney Tadashi Takagi
1) Koji Department Figure 6 Figure 7 B 1 Figure 14 Procedural Amendment Statement March 4, 1985 Manabu Shiga, Commissioner of the Patent Office 1, Indication of the Case 1981 Patent Application No. 216275 2, Invention Name of the machine for molding synthetic resin dolls 3, person making the amendment Relationship to the case Name of patent applicant Name of Takara Co., Ltd.
Dobashi Kikai Co., Ltd. 4, agent address: 1-4-4-5 Toranomon, Minato-ku, Tokyo 105
, Date of amendment order: 6, Number of inventions increased by amendment 7, Target of amendment: Full text of specification and drawings 8, Contents of amendment: Amended specification 1, Title of invention: Molding device for synthetic resin dolls, etc. 2, Patent A patent claim in which two types of claim types are arranged side by side, which are arranged at two ends of orthogonal shafts provided at the tips of a double-shaft arm, and are connected to the double-shaft arm so as to rotate and revolve. The molding apparatus according to item 1. The molding according to claim 1 or 2, which has a small number of supporting frames (two or more) and is configured such that the molding die on each supporting frame is provided with a lid that can be opened and closed. Apparatus: The molding apparatus according to claim 2 or 3, which has a drive section provided on a girder conveyor table, and the drive section is equipped with the double-axis arm so as to be able to freely rotate and revolve. .Equipped with a rotatable conveyor table,
Claims 2 to 4, wherein the table is supported by a fulcrum pin supported by a bearing part and a roller attached to the lower surface of the table, and is connected to a drive motor via a rack and pinion transmission member. A molding device according to any one of the following paragraphs. The molding device according to any one of claims 2 to 5, which is provided with a convex portion and a control mechanism that controls stopping and starting of the drive portion. 7. A plurality of the mold holding mechanism sections are provided in opposition to the heating mechanism section, and the respective mold holding mechanisms are rotated and moved alternately to the heating mechanism section to take in and out the respective molds from the heating mechanism section. Claim 2, which is configured to
The molding apparatus according to any one of items 1 to 6. 8. The heating mechanism section is a heating furnace having a furnace cover that can be opened and closed, and includes a control mechanism that opens and closes the cover when inserting and removing the molding die, and the heating mechanism section is provided with a control mechanism that opens and closes the cover when inserting and removing the molding die, and the heating mechanism section is provided with a control mechanism that opens and closes the cover when inserting and removing the molding die, and the heating mechanism section is provided with a control mechanism that opens and closes the cover when inserting and removing the molding die. A molding apparatus according to any one of claims 2 to 7, which is installed in a molding apparatus. 9. A patent in which the cooling mechanism section is equipped with a spray mechanism for supplying cooling water and a fan for collecting and exhausting steam, and is disposed in a swirling path having a curtain at the opening that can be freely opened and closed. A molding apparatus according to any one of claims 2 to 8. 3. Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an automatic molding apparatus for economically manufacturing molded articles made of thermoplastic resin, particularly doll heads and other parts. (Prior art) Conventionally, when molding thermoplastic resin molded products such as dolls using a molding mold, raw material injection, opening/closing of the mold, heating process, cooling process, demolding process, etc. In many cases, manual work is required, and it is desired to mechanize and automate each work. (Problems to be solved by the invention) The present invention is applicable to the field of molding thermoplastic resin molded products, especially dolls. We have improved the limitations of conventional technology, such as requiring a large amount of manpower in the molding process, poor work efficiency in the working environment, and inability to mass-produce, by using continuous/automated molding technology. It is an object of the present invention to provide a low-cost, high-quality molded product. [Means for solving the problem] The present invention provides a molding die capable of molding into a predetermined shape in a molding apparatus for synthetic resin dolls, etc. The mold holding mechanism includes a robot mechanism and a heating mechanism that control opening and closing operations of a mold lid including a raw material injection machine. made of synthetic resin, characterized in that it has a drive mechanism that rotates and moves the mold between the heating mechanism section and the molding die that is taken out from the heating mechanism section, and is arranged to move and take out the molding die from the heating mechanism section. This is a molding device for dolls, etc. [Example] An example of the present invention will be described with reference to the drawings. It consists of a heating furnace B as a section, cooling chambers C and C as a cooling mechanism section, and a robot throat mechanism section that performs everything from injecting raw materials into the mold to taking out the molded product. Each operation is controlled by the control panel E of the automatic control mechanism section. is automatically controlled. Two mold holding mechanism parts A are provided, and heating is applied to the position where the turning locus of the mold intersects between the mold holding mechanism parts A and A. Mechanism unit Specifically, one heating furnace B is provided.A cooling mechanism unit, that is, a cooling chamber C1C, is provided with each mold holding unit i.
They are provided exclusively for the structural parts A and A on the turning locus of the respective molds. The robot mechanism section is installed in two mold holding mechanism sections A, so that they intersect with the two trajectories formed when the mold of A rotates from the heating furnace B to the cooling chamber C, and the mold lid opening/closing. It is composed of a demolding machine 600, a demolding machine 700, a demolding leak detection and blowing machine 800, a raw material injection machine 900, and a support l1t500 for holding each of these machines in a hanging mold. [See Figure 1.2] The mold holding mechanism section A is formed by attaching a mold 200 to the tip of an arm 102 provided on a conveyor table, that is, a rotary table 101, via a spider 117 of a rotary plate. [See Figures 8 to 10] That is, the rotary table 101 is
A roller 105° 105 rolling on a track 104 laid on the base 103 and a fulcrum pin 1 erected on the base 103
06, and is connected to a geared motor 107 with a brake mounted on the rotary table 101, and a pinion 10 provided on the lower surface of the rotary table 101 and a pinion 10 provided on the base 103 in an arc with the fulcrum pin 106 as the center. The rack 109 is engaged with the rack 109 so that it can pivot on the base 103 about the fulcrum pin 106. The arm 102 is a support base 1 provided on the rotary table 101.
10, and the arm 102 is supported by the outer shaft 102.
．． and inner shaft 102. These arms are connected to geared motors 111 and 112 with brakes, respectively, and a spider spindle 113, which is an orthogonal shaft orthogonal to the arm 102, is attached to the tip of this arm 102. 114 to the inner shaft 102 □ and microphone gears 115 and 116 to the outer shaft 102 □, which rotate around the axis of the spindle 113 (“autorotation”) and also rotate around the axis of the arm 102. Rotating plate spiders 117.117 are attached to both ends of the spider spindle 113, and the spiders l17.11
A plurality of molds 200 are attached to the surface of No. 7 opposite to the spider spindle 113. A limit switch 118 is provided on the base 103 so that the rotary table 101 can be stopped at three positions: the raw material injection/removal position, the heating position, and the cooling position of the mold 200 group. It is supposed to be locked. In addition, when the group of molds 200 is horizontal and arranged in a fixed direction at the raw material injection/mold removal position, the drive part of the arm 102 is equipped with a control part so that the arm 102 can be stopped and locked. spider spindle 113
The rotation speed of the rotary table 101 and the moving speed of the rotary table 101 can also be controlled. Ten molds 200 are fixed in a row to a frame 201 serving as a support frame, and four molds 201 are fixed to a mounting plate 202 in parallel. The mounting plate 202 is fixed to the spider 117. The mounting plate 202 has clamp columns 203 protruding from four locations, and the top of the clamp columns 203 is provided with a locking portion 204. [See FIGS. 12 to 14] A mold lid 210 is provided corresponding to the arrangement of the mold 200. That is, ten lids 210 are held on each of four bars 211 so as to be vertically movable by penetrating the handle, and each mold 210 is attached to the upper surface of the lid body and the bar 2.
11 is provided with a spring 220 which is energized so as to increase the distance therebetween. A bar 212 is provided on the upper part of the bar 211 and perpendicular to each bar, and a clamp mounting plate 212 is provided on the bar 212 at a position where it engages with the clamp column 203.
A pair of clamp hooks 216 are attached to the pin 221 via the pin 15.
It is pivoted and suspended from both lamp hooks 216 and 21.
Between 6 and 6, there is a wing 2 that is energized to reduce the distance between them.
i9 is mounted. The bar 212 also has the clamp hook 216.216 on the upper surface! ! A column 214 is provided to penetrate through the position. This column 214 is vertically movable, and has a contact portion 2 at the top with the mold lid opening/closing machine 600.
17. It has an abutment part 218 with a clamp hook 216, 216 at the lower part. The gravity of this column 214 is smaller than the restoring force of the spring 219, and although it is placed and supported on the closed clamp hooks 216, 216, the column 214 resists the restoring force of the spring 219.
When pressing 14 downward, the clamp hook 216.216
is to be opened. Furthermore, magnetic bodies 213 and 21 are provided on the upper surface of both ends of the bar 212 so as to be able to come into contact with the electromagnet 602.
3 is fixed. The heating furnace B is a forced hot air circulation type pot using a burner as a heat source, and a spider 117 to which a mold 200 is attached is attached to an arm 102.
It has a size that allows it to rotate around the spindle 113 as a central axis, and notches 301° 301 are provided on both sides of the heating furnace B to enable the arm 102 to rotate.
At the entrance where 00 enters and exits, a door 302 is provided so as to be movable up and down by a cylinder having one end of a check 7 fixed to a piston. There are burners 303 and ? ! Ring Lahuan 304
An exhaust fan 305 is provided on the furnace ceiling so that hot air can be blown onto the mold. [4th
(See figure) The burner 30'3 uses a downward combustion propane gas burner, and the furnace is equipped with temperature detectors for automatic temperature adjustment, temperature recording, and temperature digital display, and the temperature is automatically controlled. If possible, the heating time can also be controlled with a timer. [See Figure 6.7] Note that the openings of the notches 301 and 301 are closed when the heating furnace B is in operation, and are used to open and close the door 302, rotate the arm 102, operate the circulation fan 304 and exhaust fan 305, and operate the burner. Ignition etc. of 303 are also controlled in conjunction with this. That is, the opening and closing of the door of heating furnace B, the rotation and rotation of arm 102, and the rotation of circulation fan 304 and exhaust fan 305 are all interlocked, and when arm 102 enters and exits, door 302 is always open and each fan 304, 305 is opened. At this time, when the rotation is stopped, the burner is also extinguished, which is considered to save energy and protect the working environment. The cooling chamber C has a size that allows the rotation of the spider 117 to which the mold 200 is attached, and includes a notch 401 that serves as an entrance for the arm 102 and an entrance for the mold 200. Mold 2
A curtain lid 402 as a curtain is provided at the entrance/exit of 00 so that it can be opened and closed by a motor 405, and a curtain-like curtain (not shown) is suspended from the notch 401. Inside the cooling chamber C, a nozzle for spraying pressurized water and a drainage pit are provided, and a fan 403 for air cooling and water droplet blowing is provided on the side. An exhaust fan 404 is provided to exhaust hot air and raw power produced by cooling. [
Refer to FIG. 5] The operating time of the nozzle and fan 403 is controlled by a timer, and the shutter 402 is controlled by a timer.
The opening and closing of the valve, the rotation of the arm 102, and the operation of the nozzle, fan, etc. are harmonized so that they are intransitive. The robot mechanism section includes a mold lid opening/closing machine 600 and a demolding machine 7.
00, demolding a+* and plow W800, raw material injection machine 9
00 and a support machine 500 that holds each machine in a suspended form. [See FIG. 3] The support machine 500 has an arm 502 at its tip that supports the index section 5 (11) rotatably connected to a column 503.
00,900 facing the mold position. The index portion 501 is attached to the tip of the arm 502 via a cylindrical column 511 fixed to the tip. A shaft 512 is rotatably supported in the hollow part of the column 511, and a gear is attached to the circumferential surface of the lower end of the shaft exposed from the column 511, and four support arms 51 are attached to the lower end.
4 are fixedly provided radially around the shaft. A pinion is provided on the column 511 and meshes with the gear via a geared motor 515 with a brake fixed to the column 511. At the tips of the four support arms 514 are cylinders 517, .
517. ．． 517. ．． 517. are respectively provided, and a mounting flange 521 is fixed to the lower end of each cylinder 517,
Each machine 600, 700, 800.
900 are connected to move up and down. In addition, the mounting flange 521 has the above-mentioned fi600°70
0.800.900 are fixedly suspended in a position convenient for the molding process, and the cylinders 517 and 520 are connected to a working fluid pressure device including a hydraulically operated compressor and pulp. Further, the rotation stop positions of the arm 502 and the index section 501 are detected by a limit switch, the rotation speed can also be controlled, and each operation of the robot mechanism section can be automatically operated by signals. The mold lid opening/closing @600 is formed by fixing an electromagnet 602 and a cylinder 603 to a frame 601, and a mounting flange 5
A frame 601 is fixed to 21 and suspended. The electromagnet 602 is in contact with the magnetic body 213 of the bar 212, and the cylinder 603 is in contact with the piston rod 604.
are provided at positions where the tips thereof abut against the abutting portion 217 of the column 214 placed on the clamp hook 216°2]6. Note that the cylinder 603 is connected to the electromagnet 6 in the working fluid pressure device F.
02 are respectively connected to the operating power source. [11th
Refer to the figure] The demolding machine 700 is adapted to the arrangement of the mold 200 and is equipped with a chuck saw as a chuck jaw, and the demolding leak detection and probe aaoo is a part of the blower equipped with an air blow nozzle. It consists of a mold removal $1 detection section equipped with a pin, and one nozzle and one detection bottle are provided for one mold 200. The raw material injector 900 has a nozzle for injecting a sol-like raw material into the mold 200. Note that a chute or conveyor for receiving molded products is installed near the column 503 of the robot mechanism section and below the portion where the turning trajectories drawn by the demolding machine 700 overlap at both turning positions of the arm 502. This chute or conveyor is provided with a support, horizontal bar, or blowing rod at a height that can contact the molded products that are suspended from the demolding machine 700 and rotated, so that the molded products that do not fall are forcibly dropped. It's like forcing someone to do something. In addition, a boiling mechanism for degreasing and shaping the recovered molded products is installed in parallel with the molding equipment. Next, the process of molding plastic raw materials will be explained. For convenience, it is assumed that the raw material has been injected into the mold 200 in one mold holding mechanism part A of the forming mold holding mechanism 1 part A, and has been completely cooled in the cooling chamber C after passing through the heating furnace B. The mold holding mechanism section A2 is placed in a heating furnace B. [
See second leap] rotary table 101 of mold holding mechanism section A
is rotated by the motor 107, and the mold 200 group is demolded and
Move to the raw material injection position. Here, the rotary table 101 is locked, and the arm 102 is set and locked at a position where the four rows of the molds 200 are lined up horizontally and in a predetermined direction. On the other hand, the arm 502 of the robot mechanism is connected to the motor 507.
, move to the demolding/raw material injection position of the horizontal part A1 of the mold holding m, and lock it. Then, the shirt 15122 is rotated by the motor 515, and the mold lid opening/closing device 600 is positioned and locked above the mold 200 group. Next, cylinder 517. Mold lid opening/closing by 8160
0 is lowered, the electromagnet 602 is input, and the magnetic body 213
At the same time, the mold 1210 is locked to the opening/closing machine via the clamp hooks 216 and 216 by operating the cylinder 603.
is opened to release the engagement between the mold 200 group and the mold M210. and cylinder 517. As a result, the mold lid opening/closing machine 600 is raised with the mold 1210 held at the bottom, and the lid opening is completed. Next, unlock the shaft 512 and remove the saw shaft 512.
is rotated to position and lock the demolding machine 700 above the group of molds 200. Then, the demolding machine 7 is removed by the cylinder 517□.
00 is lowered and raised, and after gripping the molded product with the chuck saw, it is raised and demolding is completed. Next, release the shaft 5120 lock and rotate it to remove the mold/! l Detection and probe aaoo is positioned on the empty mold 200 group and locked. and cylinder 517. After removing mold leakage detection and blow cleaning, the cylinder 517. The plane will rise. Subsequently, the shaft 512 is unlocked and rotated, and the raw material injector 900 is positioned and locked over the group of molds 200 for the cleaning method. Then, the injection machine 900 is lowered by the cylinder 5174 to a position where the opening of the nozzle faces the opening of the mold 200, and after injection is completed, the injection machine 900 is raised and returned to the standby position. Finally, the shaft 512 is unlocked and rotated, and the mold lid opening/closing machine 600 holding the mold M210 is positioned below and lowered by the cylinder 5171. Then, at the position where the electromagnet 602 and the magnetic body 213 are in contact, t! ft.
Release the input of stone 602 and clamp hook 216.21
Clamp hook 216.2 is held by cylinder 603 at a position where 6 can engage with locking part 204 of clamp column 203.
16 is closed, and the closing of the mold 200 is completed. Note that the mold holding mechanism section A1 includes two spiders 117.
117, the spider spindle 11
3 is rotated, and the same operation is continuously performed on the other side of the mold 200. When the raw material injection into the mold 200 of the mold holding mechanism section A is completed, the rotary table 101 is unlocked and rotated.
The mold 200 is stopped and locked at the heating position housed in the heating furnace B. After the heating furnace B accommodates the mold 200, the door 302 is closed and the furnace B is heated by the burner 303. At this time, the spider spindle 113 is rotated around the axis of the spindle and around the axis of the arm 102, and the mold 2
A molten skin layer is formed on the inner wall of 00 in good condition. After the heating is completed, the door 302 is opened, the rotary table 101 is rotated after being unlocked, the mold 200 is moved into the cooling chamber C, and the mold 200 is locked. After the shutter 402 of the cooling chamber C is lowered, pressure water is sprayed from a nozzle and the fan 403 is operated to cool the chamber. Here, too, the spider spindle 113 is cooled while rotating, and the molten skin layer in the mold 200 is efficiently cooled and solidified. The other mold holding mechanism section A2 is a mold holding mechanism section A. Heating is completed at the heating position when the mold is in the cooling position or demolding/raw material injection position, and after cooling, it is moved to the demolding/raw material injection position. And robot mechanism department Rimo arm 50
2 to the demolding/raw material injection position of the mold holding mechanism section A, and the same work as for the mold 200 of the mold holding mechanism section A1 is automatically performed. In the above-mentioned embodiments, each robot mechanism was configured to be able to move by rotating around an axis in the vertical direction and linearly moving up and down. It is also possible to provide each machine along the line or to move by horizontal linear movement. [Effects of the Invention] The present invention can improve the conventional problems and provide a device that can automatically mold thermoplastic synthetic resins without requiring manual labor, improving work efficiency by automating rotation molding equipment. It is suitable for mass production, and can be produced at extremely low cost. 4. Brief description of the drawings The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view;
Figure 2 is a plan view, Figure 3 is a side view of a part of it, and Figure 4 is a side view of a part of it.
The figure is a longitudinal sectional view of the heating furnace, Figure 5 is a side view of the cooling chamber, and Figure 6 is a side view of the cooling chamber.
The figure is a plan view of the burner, FIG. 7 is a front view thereof, FIG. 8 is a sectional view taken along the line nn in FIG.
Fig. 0 is a sectional view taken along the mm line in Fig. 9, Fig. 11 is a plan view of the mold lid opening/closing machine, Fig. 12 is an explanatory diagram of its operation, Fig. 13 is a partially enlarged detailed explanatory diagram of its operation, and Fig. 14 is a diagram illustrating its operation. FIG. 13 is a sectional view taken along the line rVIV. A...Mold holding mechanism section, B-heating furnace, C-cooling chamber, D...
- Robot mechanism section, E - control panel, F - working fluid pressure device,
lO1 - rotary table, 102 arm, 103 - base, 104 - track, 105 roller, 106 - fulcrum pin, 107 - motor, 108 pinion, 109 -
Rank, 110-Abutment, 111°112-Motor, 1
13-Spider spindle, 114-Cylinder, 115.1
16-Mic gear, 117--Spider, 118-Limit switch, 200 Mold, 201 Frame,
202--Mounting plate, 203-Clamp column, 204-
Locking part, 210--Lid, 211.212--Bar, 2
13-・Magnetic material, 214-Column, 215 Clamp mounting plate, 216-・Clamp hook, 217, 218-
Contact portion, 219, 220-spring, 221--pin, 3
01-Notch, 302-Door, 303-Burner, 30
4-circulation fan, 305/exhaust fan, 401-notch,
402--shutter, 403-fan, 404--exhaust fan, 405-motor, 5QO--support machine, 501
- Index section, 5 (12-arm, 503-column,
511-Column, 514-Support arm, 515-Motor, 517-Cylinder, 521-Mounting flange, 600-Mold lid opener, 601-Frame, 602-Electromagnet,
603--cylinder, 604-piston rod, 700
- Demoulding machine, 800 - Demoldability detection and blowing machine, 90
0-・Raw material injection machine.

Claims (1)

[Scope of Claims] 1. In an apparatus for obtaining a thermoplastic resin foam product by injecting a fixed amount of a thermoplastic synthetic resin raw material in the form of a sol into a mold and heat molding, the mold can be molded into a predetermined shape; The spider is equipped with a spider that holds the mold and is rotatable around its axis, and a drive that allows the spider to pivot between the heating furnace and a jib mechanism that controls the opening/closing operation of the mold including the raw material injection mechanism. 1. A molding apparatus for dolls, etc., having a mechanism and arranged to move and take out a mold attached to a spider taken out from the heating furnace into a cooling tank provided for cooling the mold. 2. The spider has a plurality of molds arranged in parallel, is arranged at two ends of an orthogonal axis provided at the tip of a double-axis arm, and is connected to the double-axis arm so as to rotate and revolve. A molding apparatus according to claim 1, which is a molding apparatus according to claim 1. 3. The spider has at least two support frames to which molds are attached, and is configured such that a mold cover can be detachably attached to the mold on each support frame. Or the molding device according to item 2. 4. Claim 2, wherein the spider has a drive section provided on a rotatably provided conveyor table, and the drive section is equipped with the double axis arm so as to be able to rotate and revolve. Or the molding device according to item 3. 5. The spider is mounted on a rotatable conveyor table on a base, and the table is supported by a fulcrum pin supported by a bearing and a roller attached to the underside of the table, and the rack and pinion are transmitted. The molding device according to any one of claims 2 to 4, wherein the molding device is connected to a drive motor via a member. 6. The molding apparatus according to any one of claims 2 to 5, wherein the spider includes a rotation stop position detection section and a control mechanism for controlling stopping and starting of the drive section. . 7. The spider has a plurality of spiders each having a plurality of forming molds installed in opposition to the heating furnace, and the spiders are rotated alternately into the heating furnace to remove each of the forming molds from the heating furnace. A molding device according to any one of claims 2 to 6, which is configured to be taken in and taken out. 8. The heating furnace has a furnace cover that can be opened and closed, and is equipped with a control mechanism that opens and closes the cover when inserting and removing the mold for the spider, and is arranged between the opposed spiders. A molding apparatus according to any one of claims 2 to 7. 9. The cooling tank is equipped with a spray mechanism for supplying cooling water and a fan for steam recovery and exhaust, and has a curtain at the opening that can be opened and closed, and is installed in the swirling path of the spider. Claims 2 to 2 which are
The molding device according to any one of Item 8.