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1. 发明专利

JPH0379321A DISK MOLDING DIE 失效
公开(公告)号：JPH0379321A
公开(公告)日：1991-04-04
申请号：JP21688589
申请日：1989-08-23
申请人： NISSEI PLASTICS IND CO
发明人： TAKAYAMA KAZUTOSHI , NAKAZAWA MAKOTO , KANAI TOSHIYUKI , MIYAIRI KAZUYOSHI , AIBA SHUJI , YAMAZAKI MINORU
IPC分类号： G11B7/26 , B29C45/26 , B29C45/36 , B29L17/00
摘要： PURPOSE:To replace a stamper by removing a mirror board by using an inner peripheral ring with a stamper fitting into its center and an outer ring fitting on the outer periphery and fitting the inner peripheral ring in a guide component to accommodate the mirror board in a recessed section and fitting said unit in an insert die integrally. CONSTITUTION:The mold surface side of an insert die 5 to be accommodated in the center of a base mold 3 is formed on a round recessed section 7 and a guide component 11 of short cylindrical shape is provided projectingly on the center of the recessed section, and a mirror board 16 which is mounted on the mold surface by means of an inner peripheral ring 18 fitted with a stamper 21 fitted in its center and an outer peripheral ring 20 fitted on the periphery, is fitted in the recessed section 7 by fitting the inner peripheral ring 18 in the guide component 11 and fixed in the insert die 5 integrally. Thus, the stamper 21 can be replaced by using the insert die 5 removed from a base mold 3 as a supporting bed, and if necessary, the mirror bed 16 is released from the insert die 5 together with the stamper 21 for the replacement of the stamper. The replacement of the stamper 21 can be carried out easily simply by removing the mirror board 16 in said arrangement.

2. 发明专利

JPH0295815A COMPOSITE INJECTION MOLDER 失效
公开(公告)号：JPH0295815A
公开(公告)日：1990-04-06
申请号：JP18666989
申请日：1989-07-19
申请人： NISSEI PLASTICS IND CO
发明人： KANAI TOSHIYUKI , JINNO NOBUO
IPC分类号： B29C33/36 , B29C33/42 , B29C45/04 , B29C45/10 , B29C45/13 , B29C45/14 , B29C45/16 , B29C45/26 , B29K101/10
摘要： PURPOSE:To improve the workability of mold replacement or the like by a method wherein common retainer plates, the number of which is fewer than that of transfer retainer plates and each of which is commonly used as one retainer plate of a mold formed in combination with each of a plurality of the transfer retainer plates mounted on a retainer plate transferring device, are made possible to be mounted to a movable platen or a fixed platen opposite to the retainer plate transferring device. CONSTITUTION:Firstly, a slide plate 25 is moved by a hydraulic cylinder 23 so as to slide a retaining plate W to the position of a retainer plate Z. Next, a movable platen 24 is shifted to the direction of a fixed platen 22 by means of a mold clamping cylinder 27 and a mold clamping piston 26 so as to clamp the retainer plates Z and W together in order to produce a primary molding die. After that, a primary molding injection machine 20 is advanced so as to about against the primary molding die in order to inject and fill glass fiber-containing molten nylon 6 in a cavity for a primary molding body. After the cooling and solidification of the injected and filled nylon 6 and the retreat of the primary molding injection machine 20, the retainer plates Z and W are opened through the movement of the movable platen 24 in the direction to a part from the fixed platen 22, resulting in leaving a primary molded body A, to the top surface of which a recessed part is opened, on the retainer plate Z. The retainer plate Z, onto which the primary molded body A is left, and a retainer plate Y, which is shifted by the sliding movement of the slide plate 25, are clamped together with each other.

3. 发明专利

JPH0243018A COMPOSITE INJECTION MOLDING 失效
公开(公告)号：JPH0243018A
公开(公告)日：1990-02-13
申请号：JP14718589
申请日：1989-06-10
申请人： NISSEI PLASTICS IND CO
发明人： KANAI TOSHIYUKI , JINNO NOBUO
IPC分类号： B29C33/42 , B29C45/04 , B29C45/14 , B29C45/16 , B29C45/26
摘要： PURPOSE:To obtain a composite molded body where a primary molded body and a secondary molded body are stuck firmly to each other without interposing an adhesive linkage, by a method wherein the primary molded body where a through hole extending from an external circumferential wall surface of a molded body having a recessed part to a wall surface of the recessed part is bored through is obtained by injection molding and the second resin is injected and filled out into the recessed part and the inside of a cavity of a mold. CONSTITUTION:A slide pin 3 is inserted into a cavity for a primary molded body to be formed of a movable retainer plate A and retainer plate B until the same abuts against a protrusion 5 of the retainer plate B and the first resin molding the primary molded body 1 is injected and filled out into the cavity. A retainer plate C injection-molding a secondary molded body in place of the retainer plate B is joined to the movable retainer plate A, through which a mold for the secondary molded body is constituted. In this instance, the tip of the slide pin 3 is moved backward up to the close vicinity of a wall surface of the primary molded body 1 and a tunnel-like through hole 8 bored into a wall surface of a recessed part 7 of the primary molded body 1 is formed. Then the second resin is injected and filled out into the recessed part 7 of the primary molded body 1 and the cavity 6 of the retainer plate C. In addition, resin forming the primary and secondary molded bodies are made incompatible with each other.

4. 发明专利

JPS60247520A MOLDING METHOD OF HINGE IN SYNTHETIC-RESIN MOLDED ARTICLE 失效
公开(公告)号：JPS60247520A
公开(公告)日：1985-12-07
申请号：JP10345984
申请日：1984-05-22
申请人： NISSEI PLASTICS IND CO
发明人： KANAI TOSHIYUKI , TSUCHIYA YASUO , YAMAZAKI MINORU
IPC分类号： B29C45/14 , B29C45/16 , B29L31/22 , B29L31/56
摘要： PURPOSE:To enable to mold the titled article with either resin having properties corresponding to a purpose or colored resin, by a method wherein a molded article is molded with the two resin different from each other and a hinge bonded with one of the two resin is molded with a part of the other resin within the same mold. CONSTITUTION:A communicating part 6 is closed by a molding die of a hinge and a molded material 11 is molded by pouring first resin into one side cavity 4. A large and small cores 9, 10 are moved backward and a molding part 12 of the hinge which is communicated with a part up to the inside of the molded material is formed on a cavity 4 side. Then a molding of a molded material 13 is performed by pouring second resin having properties of the hinge into the other cavity 5. In this instance, the molding part 12 of the hinge is filled with a part of the resin, the resin arrives at the inside of the molded material 11 and the hinge 16 having a connecting part 15, whose part of a stepped part 10a of the small core 10 is made into an undercut 14, is molded by a part of the molded material 13.

5. 发明专利

JPS59135135A Coating method by injection molding 失效
标题翻译：注塑成型方法
公开(公告)号：JPS59135135A
公开(公告)日：1984-08-03
申请号：JP15778182
申请日：1982-09-10
申请人： Nissei Plastics Ind Co
发明人： MINAMIMURA MASAAKI , TSUCHIYA YASUO , KANAI TOSHIYUKI
IPC分类号： B29C45/00 , B29C35/00 , B29C45/14 , B29C45/17 , B29C45/76 , B29C61/00
CPC分类号： B29C45/14073 , B29C2045/1409
摘要： PURPOSE:To perform resin coating even with respect to an object having a complicated shape with high accuracy, by performing the retraction operation of a holding member for holding the object inserted into a cavity in synchronous relation to the advancing distance of an injection piston. CONSTITUTION:In performing resin coating with respect to the surface of an object 4 by using an injection molding machine, a mold 1 is opened to insert the object 4 into a cavity 2 while holding members 3, 3 are protruded to hold the object 4 in the cavity 2. After the mold 1 is clamped, the nozzle of an injection machine 6 is contacted with a gate 5 while an injection screw 7 is advanced and molten resin is injected into the space between the cavity 2 and the object 4. A limit switch 11 is set to a position corresponding to a resin injection amount and, when said switch 11 is operated, a hydraulic machine 3a is operated to retract the holding members 3 and the leading ends thereof are pulled back to the cavity surface.
摘要翻译：目的：即使相对于具有高精度的复杂形状的物体也进行树脂涂覆，通过执行用于将插入空腔中的物体保持与注射活塞的前进距离同步的保持构件的缩回操作。构成：在使用注射成型机进行相对于物体4的表面的树脂涂布时，打开模具1，将物体4插入空腔2中，同时保持构件3,3突出以将物体4保持在空腔2.在模具1被夹紧之后，注射机6的喷嘴与门5接触，同时注射螺杆7前进并且熔融树脂注入空腔2和物体4之间的空间中。限制开关11被设定为与树脂注入量对应的位置，当操作开关11时，液压机3a被操作以缩回保持构件3，其前端被拉回到空腔表面。

6. 发明专利

JPS6237118A MOLD FOR MULTICOLOR MOLDING 失效
公开(公告)号：JPS6237118A
公开(公告)日：1987-02-18
申请号：JP17656385
申请日：1985-08-10
申请人： NISSEI PLASTICS IND CO
发明人： TAKAYAMA KAZUTOSHI , KANAI TOSHIYUKI
IPC分类号： B29C33/30 , B29C33/42 , B29C45/16 , B29C45/26 , H01H11/00
摘要： PURPOSE:To contrive cost reduction by making large-sized exchange equipment unnecessary, by providing an actuating device of a pin member inwardly in a split mold block by providing two sets of molds for primary and secondary molding constituted of a cavity block and core block buried in a breaking and clamping surfaces of a pair of the split mold bases attachably and detachably. CONSTITUTION:One side cavity of cavity blocks 14, 14 buried in split mold bases 1, 1 forms a primary molded part (a) and the other side cavity of that forms a secondary molded part (b) on the primary molded part (a). The tip of a pin member 16 is protruded into a cavity on a primary molding side in a mold clamping state and is located within a primary molded part (a) molded by injecting there. At the time of mold break, pressing force against an actuation lever 13 is eliminated, the tip of the actuation lever 13 is put in a hollow part 22 provided on the split mold block 1 on a secondary molding side, and an actuation device 9 comes free. The pin member 16 is pulled in by a coil spring 17 up to a position wherein the tip of the pin member 16 is positioned to a core surface. In consequence of the above, pin marks are made into a flow hole 23 communicating the inside and outside of the primary molded part (a) with each other, resin is streamed out of the flow hole 23 to form the secondary molded part (b) which becomes a main body, on the surface side of the primary molded member (a).

7. 发明专利

JPS6176333A Jointing method among molded articles by injection molding 失效
标题翻译：通过注塑成型在模具制品中的接合方法
公开(公告)号：JPS6176333A
公开(公告)日：1986-04-18
申请号：JP16898685
申请日：1985-07-31
申请人： Nissei Plastics Ind Co
发明人： KANAI TOSHIYUKI , TSUCHIYA YASUO , YAMAZAKI MINORU
IPC分类号： B29C45/26 , B29C45/14 , B29C45/16 , B29C65/70
CPC分类号： B29C45/1639
摘要： PURPOSE:To enable to unify reliably two molded articles at the time of injection molding, by providing a first core opening and closing a communication part and a second core whose tip provided with a stepped part is brought into contact with the first core are provided on one side of two cavities provided by making them communicate with each other. CONSTITUTION:Two cavities having resin pouring inlets respectively are provided within the same mold by making the cavities communicate with each other, and an advancable and retreatable first core 9 opening and closing a communication part 6 and an advancable and retreatable second core 10 whose tip provided with a stepped part 10a is brought into contact with the first core 9 are provided on the communication part 6 of the one side cavity 4. The first core 9 and second core 10 are made to abut against each other by making them move forward and the communication part 6 is closed by the first core 9. Then after a molded material 11 has been molded by injecting resin to the cavity 4, both the cores are moved backward up to a mold surface. Then when the other resin is injected successively to the other cavity 5, a spacial part 12 is filled with a part of the resin by flowing the resin into the spacial part 12 through the communication part 6 and a joint part 15 which is unified with the molded material 11 is generated through an undercut 14 formed by the stepped part 10a.
摘要翻译：目的：为了在注射成型时能够可靠地统一两个模制品，通过提供第一芯开口和闭合连通部分以及具有阶梯部分的尖端与第一芯体接触的第二芯体设置在通过使它们彼此通信而提供的两个空腔的一侧。构成：通过使空腔彼此连通，分别在同一模具内设置两个具有树脂浇注口的空腔，以及可开启和可退回的第一芯体9，其打开和关闭连通部分6和可提升和可撤回的第二芯部10，其末端提供设置在一侧空腔4的连通部6上的与第一芯9接触的阶梯部10a。第一芯9和第二芯10通过使其前进而相互抵靠，连通部6被第一芯体9封闭。然后，通过将树脂注入到模腔4中模制成型材料11之后，两个芯子向后移动到模具表面。然后，当将另一种树脂连续地注入到另一个空腔5时，通过将树脂通过连通部6和连接部分15与树脂的一部分一体地流动到空间部分12中，一部分树脂填充空间部分12 模制材料11通过由阶梯部分10a形成的底切14产生。

8. 发明专利

JPH02139215A COMPOSITE INJECTION-MOLDED BODY, METHOD THEREOF AND COMPOSITE INJECTION-MOLDING EQUIPMENT 失效
公开(公告)号：JPH02139215A
公开(公告)日：1990-05-29
申请号：JP6654289
申请日：1989-03-18
申请人： NISSEI PLASTICS IND CO
发明人： KANAI TOSHIYUKI , JINNO NOBUO
IPC分类号： B29C45/14 , B29L22/00
摘要： PURPOSE:To strongly fix a secondarily molded body to a primarily molded body by a method wherein an undercut part is produced by projecting the wall surface of a recess into the recess through the pressing of the periphery of the recess formed on the primarily molded body, which is obtained by injection molding, and, after that, resin, of which the secondary molded body is made, is injected so as to fill the recess of the primarily molded body. CONSTITUTION:On the flange part of a primarily molded body A, which is make of a first resin consisting of glass fiber-containing nylon 6, a secondarily molded body B, which is a sealing ring made of a second resin consisting of silicone rubber, and a plurality of bolt holes 10 are provided. A recess 3 is formed at the contact surface of the above-mentioned primarily molded body A with the secondarily molded body B in such a manner that the bottom of the recess 3 is larger than the opening thereof, that is, the vertical cross section of the recess 3 is a trapezoid. By filling the second resin in the recess 3 as just mentioned above, a part of the secondarily molded body B is constituted. Accordingly, since a part of the secondarily molded body B fits to the recess 3, which forms an undercut part near its bottom, of the primarily molded body and the projected part near the opening of the recess 3 acts as the fastening part of the secondarily molded body B, the secondarily molded body B is strongly fixed to the recess 3 of the primarily molded body A.

9. 发明专利

JPH0225314A APPARATUS AND METHOD FOR MULTILAYER INJECTION MOLDING 失效
公开(公告)号：JPH0225314A
公开(公告)日：1990-01-26
申请号：JP17675788
申请日：1988-07-15
申请人： NISSEI PLASTICS IND CO
发明人： KUBOTA HONOBU , YODA HIRONORI , KANAI TOSHIYUKI
IPC分类号： B29C45/16 , B29C45/26 , B29L9/00
摘要： PURPOSE:To apply pressure to molten resins in respective resin passages and consequently make continuous and quick injections possible by a method wherein a selector passage is connected to one arbitrary leading-in port by pivoting a manifold. CONSTITUTION:A connecting part 32 is provided integrall with or separately from a nozzle 22, in which a through hole 34 to connect to the injection hole 24 of the nozzle. On the inner wall surface of the through hole 34, leading-in ports 36a-36c to respectively connect to resin passages 12a-12c, through which three kinds of molten resins, for example, are fed, are sparsely provided at predetermined intervals peripherally. The tip part of a manifold 38 is pivotally fitted in the through hole 34 of the connecting part 32. At said tip part, a selector passage 44, one end of which connects to the injection hole 24 of the nozzle and the other end of which selectively connects to one arbitrary leading-in port of the leading-in ports 36a-36c, is provided so as to connect to one arbitrary leading-in port while the outer wall surface blocks the other leading-in ports. A pivoting device pivots the manifold so as to continuously connect only one resin passage out of the resin passages 12a-12c to the injection hole 24 in regular order.

10. 发明专利

JPS62101413A MOLD FOR MOLDING PLUG CAP 失效
公开(公告)号：JPS62101413A
公开(公告)日：1987-05-11
申请号：JP24206285
申请日：1985-10-29
申请人： NISSEI PLASTICS IND CO
发明人： TSUCHIYA YASUO , KANAI TOSHIYUKI , KARASAWA AKIRA
IPC分类号： B29C45/14 , B29C45/36 , B29C45/40 , B29K105/20 , B29L31/36
摘要： PURPOSE:To save labor necessary to insert and shorten a molding cycle by a method wherein the accommodating section of a block type holder is provided at the terminal section of a cavity and the holder is operated by an insert plate provided in the fixed mold of the holder to permit the insertion of a chord as well as the withdrawal of a molded product. CONSTITUTION:When an extruding shaft 21 is pulled back to release the pushing pressure of an insert plate 10, the insert plate 10 is pushed back by a spring member 12 and is superposed on a projecting plate 11 while a hook member 17 is closed by another spring member 18 and both of the plates 10, 11 are connected at the end sections thereof. On the other hand, a holder 7 is moved to the side of a cavity together with a chord 52 in accordance with the movement of the insert plate 10 and the holder 7 is fitted into the accommodating section 8 thereof. When a mold is closed by moving a movable mold 1 under such condition, the tip end of the chord 52 is inserted into the cavity 5 and the main body of a plug may by molded by resin injected and loaded into the cavity 5.

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