JPS6280013A - Manufacturing device for toy - Google Patents

Abstract

PURPOSE:To reduce remarkably production cost, achieving a plurality of insert molding processes continuously by forming the working shaft fitted to the piston shaft of an oil pressure device in a freely rocking manner and the guiding groove for conducting the end portion of the working shaft to one side of an engaging pawl at driving and causing it to go around said nib at returning. CONSTITUTION:The end portion of a working shaft is conducted to the linear part of a semiconductor guiding groove 8b, operating an oil pressure device 8a, and then it is applied to one side of an engaging pawl 7 and pushes said nib. At returning, said shaft end moves along the curved portion of said guiding groove 8b and goes ground said engaging pawl 7, whereby a stripper 4 is turned with a rotary shaft 3 by a specified angle, i.e. 120 deg. accurately Molded parts 1c, 1d are transferred onto the mold in the process of later order at the state where the parts are kept in said stripper 4. On one hand, the new molded parts 1c having been molded in the process of former order is transferred onto said mold and situated thereon with the turn of the stripper 4. Next, while a pushing device is retracted and the stripper 4 is positioned at the side of a core 2, the molded parts 1c in the process of former order is guided to the mold and placed thereon. In following processes similar injection molding is repeatedly carried out.

Description

[Detailed Description of the Invention] ``Industrial Application Field'' The present invention relates to an apparatus for manufacturing toys equipped with joints, and in particular, the present invention relates to a manufacturing apparatus for manufacturing toys equipped with joints, and in particular, the present invention relates to an apparatus for manufacturing toys equipped with joints, and in particular, a manufacturing apparatus for manufacturing toys including the joints of dolls, such as the torso, legs, arms, etc. The present invention provides a manufacturing device that enables integral molding through a plurality of consecutive molding steps.

[Prior Art J] Conventional doll manufacturing equipment molds each component of the doll's body, legs, and arm cage by molding synthetic resin, respectively, or as separate left and right parts. These parts are assembled by screws in a manual assembly process, and the required joints are formed by rotatably connecting the parts with rivets or the like.

[Problem to be solved by the invention] However, according to conventional manufacturing equipment, the body of the doll,
Each component such as the legs and arms is molded as separate parts from the front and back (or the left), so even if we calculate the most conservatively, there will be 5 pieces for the torso and 5 pieces for the legs. X2=1OL!
I+, the arm part consists of 4 x 2 = 8 pieces, a total of 23 molded parts, 8 screws, 8 rivets, etc. for assembly, it takes at least 3911 I in total to assemble the doll.
These dolls have disadvantages such as requiring a large number of parts, and an extremely large number of parts. Molded parts that are related to each other, such as one section, have the disadvantage that it is difficult to mold them uniformly under specified molding conditions due to shrinkage during molding. As they are assembled one by one, assembly is extremely troublesome, requiring a large number of assembly man-hours, and even if quality control is carried out in each process, there will inevitably be variations in the finished product due to the above-mentioned molding problems, which will increase manufacturing costs. However, it has disadvantages such as being expensive.

"Means for Solving the Problems" The present invention eliminates the manufacturing disadvantages of the conventional manufacturing equipment described above, and involves arranging a plurality of molds at predetermined angles on concentric circles around the rotation axis. In addition, each of the molds has the required molds formed at the positions of the corresponding parts for configuring the joints, etc., according to a predetermined molding order, and a core that configures these molds. Between the side and the cavity side, a part of the runner for the part to be molded is held and is slidably and rotatably mounted in the axial direction of the rotating shaft for transferring it to the mold for the next molding order. a plurality of engaging claws protruding from the rotating shaft at the predetermined angle, and an operating shaft swingably mounted on a piston shaft of a hydraulic device for driving the engaging claws; A half-moon-shaped guide groove is formed to guide the coaxial end toward one side of the engagement pawl during driving and to detour it when returning.

``Example'' The present invention will be explained with reference to an example shown in the figures below. Figures 6 and 7 show a doll to be manufactured in an example of the present invention, and this doll has main parts including joints. The WA section 10 is composed of a head N511, a chest 12, a waist 13, etc., which are swingably connected to each other.

In the manufacturing process of such a doll, an explanation will be given based on the manufacturing process of one leg 20 shown in FIG. 5. First, in the first molding process, as shown in FIG. A shaft member 21 having a protruding shaft 21a for attachment to the joint portion 14, a foot portion 22 having a protruding shaft 22a serving as one member constituting the joint portion, and reinforcing members 23, 24.
is being molded. Next, in the second molding process,
A middle part 25 is connected to the runner 1b and rotatably encloses the shaft member 21, and has a protruding shaft 25a on the other side, and a middle part 25 that rotatably encloses the protruding shaft 22a and protrudes on the other side. Intermediate parts 26 each having a shaft 26a are insert-molded, and a knee part 21 is formed in the middle thereof with protruding shafts 27a and 27b which are one of the members constituting the joint part of the knee part. Next, in the third molding process, as shown in FIG.
The bearings that rotatably enclose the protruding shafts 2a and 27b are integrally molded with the side member 29 by inserts.

FIG. 2 is a front view of the main part of the core 2 side of the molding apparatus for performing the series of molding steps described above, and the first molding device used in the tenth molding step is located at position X of a concentric circle around the rotating shaft 3. A second mold 1x is provided, a second mold 1Y used in the second molding process is provided at a position IY rotated by 120 degrees from the same mold 1x, and a second mold 1Y used for the second molding process is provided at a position Z further rotated by 120 degrees from the same mold 1y. F3 molds 1Z used in the molding process No. 3 are provided respectively. In accordance with predetermined molding parts, such molds are formed at the positions of corresponding parts for forming joint parts, etc., respectively.

FIG. 1 is an exploded perspective view of the main parts of the above-mentioned molding apparatus, and in the same figure, 1 is a cavity of a mold corresponding to the above-mentioned core 2, and between the cavity 1 and the opposing core 2 there is a As a transfer means for transferring the part to be molded to the mold in the next molding order, a stripper 4 is equipped with the rotating shaft 3 and holding one end of the runner 1a so as to be rotatable and movable in the axial direction. It is set up. Further, on the back side of the core 2, a protruding base 5 equipped with a protruding pin 5a is provided, and the core 2 and the protruding base 5 are connected to the suppressing base 6 connected to the suppressing device along a plurality of guide pins 6a which are protruded into a spring 6.
81 so as to be slidable in the axial direction via b. Also -F
The rotation axis 3 is set at a predetermined angle, that is, the above 120°.
A guide frame 8 is provided on the outside of the engaging claw 7 that protrudes from three sides for rotation at a time, and a guide frame 8 that rotatably holds the engaging claw 7 and is equipped with a hydraulic device 8a on one side. An operating shaft 9, which is movably mounted on the piston shaft 9a of the hydraulic device 8a, is guided into the interior of the hydraulic device 8a, and the end of the operating shaft 9 is guided to one side of the engaging claw 7 when driven, and then returned. A half-moon-shaped guide groove 8b is formed for detouring at times.

"Operation" The operation of each part of the molding process using the above-mentioned molding apparatus will be explained based on FIGS. 3 and 4.
In the figure a, the core 2 side is in close contact with the cavity 1 side, and the part 1C molded in the preceding process is loosely inserted into the mold in a continuous manner with the runner 1a,
By injection molding in the same mold in this state, it is possible to integrally in-4-note mold a part of the component 1C in the preceding molding process with the subsequent molded component 1d. Next, as shown in the same figure, the cavity 1 is separated from the side core 2 side, and further, as shown in the figure C, the press base 6 is moved by the pressing operation of the pressing device.
, through the rotating shaft 3 (~ with the ripper 4 and the protruding base 5
The ejection bottle 5a integrated with the stripper 4 is pushed out, and the molded parts 1c and id are separated from the mold on the core 2 side together with the stripper 4. Next, continue using the stripper 4 as shown in Fig. 4d.
When the stripper 4 is pushed out, the ejector bottle 5a is left behind, and the stripper 4 is separated from the ejector bottle 5a and becomes rotatable.

Next, as shown in FIG. Sometimes, it moves along the curved part of the guide groove 8b and bypasses the engaging claw 7. As a result, the stripper 4 is rotated together with the rotary shaft 3 by a predetermined angle, that is, exactly 120'', and the molded part 1C11d molded by the mold at this position is held by the stripper 4 in the subsequent process. On the other hand, parallel to this, a new molded part 1C, which was molded in the previous process in the same way as above, is sent along with the rotation of the stripper 4 and positioned on the same mold.Next, f As shown in FIG. 3, the pressing device retreats and the stripper 4 is placed on the core 2full, and the molded part 1C of the preceding process is guided to the mold A and placed Ia.Hereinafter, a in FIG. 3 above. In this state, index molding is performed in the same manner.

By repeating the above operations, molding is continuously performed in each mold. The parts molded in the mold 1X at position
Forming at position Z along with rotation! 11 and 12, the remaining parts are integrally insert-molded, and finally, the main components including the joints are taken out as a completed product.

At the same time, each runner is separated from the molded part by a runner cutting device (not shown).

"Effects of the Invention" As described above, by continuously performing a plurality of molding steps from 1 to 1, it is possible to form the main parts of the doll, such as the torso, legs, arms, etc., including the joints as in the embodiment. Each component can be integrally molded. This eliminates the need for molding many parts individually and assembling them one by one as in the conventional type, reducing the number of parts and assembly man-hours, and greatly reducing manufacturing costs.

In addition, since a plurality of molds are arranged concentrically at a predetermined angle 1a with the rotation axis as the center, a stripper that is slidable and rotatable in the axial direction of the rotation axis is provided.
By means of drive means in the cylinder in the axial and rotational directions, a part of the runner of the part to be molded can be held at each position and accurately transferred to the next mold.

In particular, the driving means in the rotational direction is configured by guiding the end of an operating shaft swingably mounted on the screw shaft along a half-moon-shaped guide groove, thereby reciprocating the screw shaft of the hydraulic system. can be used as is as a driving force, and accurate positioning is possible.

This simplifies the molding equipment that performs multiple insert moldings continuously41, and enables stable molding at all times.It eliminates product variations due to molding defects that occur with conventional models, and produces finished products with consistently stable quality. can be provided.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the main parts of a toy manufacturing apparatus showing an embodiment of the present invention, Fig. 2 is a plan view of the main parts of the molding apparatus, and Figs. FIG. 5 is a side view of the main parts of the molding device to explain the operation, FIG. 5 is a perspective view for explaining each molding process of the legs of the doll, FIG. It is a partial notch side view. In the same figure, 1 is a cavity, 2 is a core, 3 is a rotating shaft, 4 is a stripper, 5 is a protruding base, 6 is a pressing base 7 is an engaging claw, 8
is a guide frame, 8a is a hydraulic device, 8b is a guide groove, 9 is an operating shaft, 1x is a first mold, 1Y is a second mold, 11 is a third mold, Ia, 1b are runners, 10 20 is a torso, 20 is a leg, and 30 is an arm.

Claims (1)

[Claims] A plurality of molds are arranged concentrically at predetermined angles around the rotation axis, and each mold is filled with corresponding parts for constructing joints, etc., according to a predetermined molding order. Form the required mold at the position,
In addition, between the core side and the cavity side constituting these molds, a part of the runner of the part to be molded is held and moved in the axial direction of the rotating shaft for transferring it to the mold of the next molding order. A stripper is provided so as to be slidable and rotatable, and a plurality of engaging claws are protruded from the rotating shaft at the predetermined angles, and a piston shaft of a hydraulic device for driving the stripper is provided with a swinging shaft. Manufacture of a toy characterized by forming a half-moon-shaped guide groove for guiding an end coaxial with a movably mounted operating shaft to one side of the engaging claw when driving and detouring it when returning. Device.