CN102294799A - Rotary damage-free de-threading mechanism for injection mould - Google Patents
Rotary damage-free de-threading mechanism for injection mould Download PDFInfo
- Publication number
- CN102294799A CN102294799A CN2010105332895A CN201010533289A CN102294799A CN 102294799 A CN102294799 A CN 102294799A CN 2010105332895 A CN2010105332895 A CN 2010105332895A CN 201010533289 A CN201010533289 A CN 201010533289A CN 102294799 A CN102294799 A CN 102294799A
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- thread
- screw thread
- plastic product
- core
- free
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a rotary damage-free de-threading mechanism for an injection mould. The rotary damage-free de-threading mechanism comprises a mould plate on which a mould core is arranged, a plastic product is arranged on the mould core, and threads are manufactured on the plastic product, one side of the mould plate is equipped with a hydraulic motor, the hydraulic motor is connected with a thread core through a key slot, and a head part of the thread core is in fit with the threads of the plastic product; the rotary damage-free de-threading mechanism is characterized in that the mould plate is equipped with a bracket in which a thread bushing is arranged, a tail part of the thread core is provided with external threads which are in fit with the thread bushing. According to the technical scheme of the invention, when the hydraulic motor drives the thread core to rotate to loose the core, the counter force enabling the thread core to back off is borne by the external threads and the thread bushing, the extrusion force which is generated when the thread core is back off from the threads of the plastic product is reduced; therefore, the threads of the plastic product thread are free from damage, the yield is improved, and the cost is saved; the rotary damage-free de-threading mechanism is simple in structure, easy for processing, wide in use range, and obvious in positive effect, and is suitable for all plastic products with threads.
Description
Technical field
The screw thread that the present invention relates to a kind of injection mold is deviate from mechanism, relates to particularly that a kind of rotation is harmless takes off thread mechanism, belongs to the mould of plastics field.
Background technology
Adopt injection mold to produce plastic product, particularly produce the product that is shaped on screw thread (mainly referring to internal thread), a kind of engine tank of automobile for example, be shaped on interface on the tank, be shaped on internal thread (hole) in the interface, therefore, before product (tank) demoulding ejects, need earlier the demoulding of loosing core of this internal thread.Prior art is taken off screw thread and is generally adopted the direct connecting thread fuse rotation of hydraulic motor to loose core, and thread is damaged, and causes product rejection.Particularly when thread is many, drive the screw thread fuse at hydraulic motor and loose core in the process of (withdrawing from), the thread of product directly bears the reaction force that the screw thread fuse withdraws from, the easier product thread damage that causes, the scrappage height increases production cost.
Summary of the invention
The objective of the invention is in order to overcome the shortcoming of prior art, provide a kind of reaction force when the screw thread fuse withdraws from not act on the product screw thread, make the product screw thread not have damage, reduce scrappage, save the harmless thread mechanism that takes off of injection mold rotation of production cost.
The harmless technical scheme of taking off thread mechanism of injection mold rotation of the present invention is: comprise mould template, core rod is installed on the template, plastic product is arranged on the core rod, be shaped on screw thread on the plastic product, hydraulic motor is installed in a side of template, hydraulic motor is through keyway connecting thread fuse, the head of screw thread fuse and plastic product threads engaged is characterized in that mounting bracket on the described template, and thread bush is installed in the support, afterbody at the screw thread fuse is shaped on external screw thread, and external screw thread matches with thread bush.
The harmless thread mechanism that takes off of injection mold rotation of the present invention, because mounting bracket on described template, thread bush is installed in the support, is shaped on external screw thread at the afterbody of screw thread fuse, external screw thread matches with thread bush, when the rotation of hydraulic motor drive screw thread fuse is loosed core, the reaction force that the screw thread fuse is withdrawed from is born by external screw thread and thread bush, reduces the extruding force of screw thread fuse when withdrawing from the plastic product screw thread, makes the product screw thread not have damage, improve yield rate, save cost.This programme is simple in structure, and handling ease is applicable to the threaded plastic product of the ownership, and the scope of application is wide, has significant good effect.
Injection mold rotation of the present invention is harmless takes off thread mechanism, also can be at described screw thread fuse afterbody connecting thread mold insert, and the screw thread mold insert connects hydraulic motor through keyway, is shaped on external screw thread on the screw thread mold insert, and external screw thread matches with thread bush, and its effect is constant.
Description of drawings
Fig. 1 is the harmless thread mechanism structural representation that takes off of injection mold rotation of the present invention;
Fig. 2 is the harmless thread mechanism schematic perspective view that takes off of injection mold rotation of the present invention;
Fig. 3 is the harmless thread mechanism schematic top plan view of taking off of injection mold rotation of the present invention.
The specific embodiment
The present invention relates to the harmless thread mechanism that takes off of a kind of injection mold rotation, as shown in Figure 1-Figure 3, comprise mould template 1, core rod 2 is installed on the template, plastic product 3 is arranged on the core rod, be shaped on screw thread 4 on the plastic product, side in template 1 is installed hydraulic motor 5, hydraulic motor is through keyway connecting thread fuse 6, the head of screw thread fuse 6 matches with plastic product screw thread 4, it is characterized in that mounting bracket 7 on the described template 1, and thread bush 8 is installed in the support, afterbody at screw thread fuse 6 is shaped on external screw thread 10, and external screw thread 10 matches with thread bush 8.The pitch of external screw thread 10 equates with the pitch of plastic product screw thread 4.The harmless thread mechanism that takes off of the rotation of this programme, during work, driving 6 rotations of screw thread fuse by hydraulic motor 5 looses core, the reaction force that its screw thread fuse withdraws from is born by external screw thread 10 and thread bush 8, reduced screw thread fuse 6 greatly when withdrawing from plastic product screw thread 4, the extruding force of 6 pairs of plastic product screw threads 4 of screw thread fuse makes the product screw thread not have damage, improve yield rate and output efficiency, save cost.This programme is simple in structure, and handling ease is applicable to the threaded plastic product of the ownership, and the scope of application is wide, has significant good effect.Also can be at described screw thread fuse 6 afterbody connecting thread mold inserts 9, screw thread mold insert 9 connects hydraulic motor 5 through keyway 11, is shaped on external screw thread 10 on the screw thread mold insert, and external screw thread 10 matches with thread bush 8, and its effect is constant.
Claims (2)
1. the injection mold rotation can't harm and takes off thread mechanism, comprise mould template (1), core rod (2) is installed on the template, plastic product (3) is arranged on the core rod, be shaped on screw thread (4) on the plastic product, side in template (1) is installed hydraulic motor (5), hydraulic motor connecting thread fuse (6), the head of screw thread fuse (6) matches with plastic product screw thread (4), it is characterized in that described template (1) goes up mounting bracket (7), thread bush (8) is installed in the support, is shaped on external screw thread (10) at the afterbody of screw thread fuse (6), external screw thread (10) matches with thread bush (8).
2. as claimed in claim 1, it is characterized in that described screw thread fuse (6) afterbody connecting thread mold insert (9), screw thread mold insert (9) connects hydraulic motor (5) through keyway (11), is shaped on threaded collar (10) on the screw thread mold insert, and threaded collar (10) matches with thread bush (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105332895A CN102294799A (en) | 2010-11-05 | 2010-11-05 | Rotary damage-free de-threading mechanism for injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105332895A CN102294799A (en) | 2010-11-05 | 2010-11-05 | Rotary damage-free de-threading mechanism for injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102294799A true CN102294799A (en) | 2011-12-28 |
Family
ID=45355586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105332895A Pending CN102294799A (en) | 2010-11-05 | 2010-11-05 | Rotary damage-free de-threading mechanism for injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102294799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587084A (en) * | 2013-11-04 | 2014-02-19 | 高精科技(苏州)有限公司 | Thread removal device used for water closet flusher |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410715Y (en) * | 2009-06-18 | 2010-02-24 | 厦门新鸿洲精密科技有限公司 | De-threading mechanism of precise plastic inner-threaded products |
| CN201889887U (en) * | 2010-11-05 | 2011-07-06 | 浙江凯华模具有限公司 | Rotational lossless thread unloading mechanism for injection molds |
-
2010
- 2010-11-05 CN CN2010105332895A patent/CN102294799A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201410715Y (en) * | 2009-06-18 | 2010-02-24 | 厦门新鸿洲精密科技有限公司 | De-threading mechanism of precise plastic inner-threaded products |
| CN201889887U (en) * | 2010-11-05 | 2011-07-06 | 浙江凯华模具有限公司 | Rotational lossless thread unloading mechanism for injection molds |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587084A (en) * | 2013-11-04 | 2014-02-19 | 高精科技(苏州)有限公司 | Thread removal device used for water closet flusher |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |