CN201410715Y - De-threading mechanism of precise plastic inner-threaded products - Google Patents
De-threading mechanism of precise plastic inner-threaded products Download PDFInfo
- Publication number
- CN201410715Y CN201410715Y CN2009201389384U CN200920138938U CN201410715Y CN 201410715 Y CN201410715 Y CN 201410715Y CN 2009201389384 U CN2009201389384 U CN 2009201389384U CN 200920138938 U CN200920138938 U CN 200920138938U CN 201410715 Y CN201410715 Y CN 201410715Y
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- thread
- tooth core
- screw thread
- thread core
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Abstract
The utility model discloses a de-threading mechanism for precise plastic inner-threaded products, which comprises a movable mold and a fixed mold. The movable mold and the fixed mold are matched witheach other to form a product cavity; the movable mold is provided with a thread core and a thread core driving mechanism; a thread core tapping end is arranged in the product cavity; the thread core penetrates through the movable mold; the bottom end of the thread core is connected on the thread core driving mechanism; the tail end of the thread core is matched with a thread case through threads;the molding end of the thread core extends into or is separated from the product cavity by depending on the driving of threads; and the thread case is fixed on the movable mold. In the de-threading mechanism for precise plastic inner-threaded products, the gear mechanisms of molds drive a transmission shaft, and the transmission shaft drives the thread core to rotate, thus conducting tapping to the inner cavity of the molded products; as the thread core is matched with the thread case by threads, and the thread case is fixed, when the thread core rotates, the thread case moves backward synchronously, thus realizing steady de-molding of threads from plastic products. The de-threading mechanism for precise plastic inner-threaded products has the advantages of reasonable design and steady transmission; and the produced precise injection-molded products have high yield.
Description
Technical field
The utility model discloses a kind of accurate plastics internal screw thread goods and takes off thread mechanism, belongs to accurate plastic products internal screw thread class manufacturing technology field.
Background technology
Accurate plastic products are fine finishining injection mo(u)ldings, screw thread on the goods is the precision prescribed height especially, as the internal screw thread of injection moulding M5.5P0.35mm, the plastic products thread is 5～50gf-cm with the torsion that cooperates of tooth rule, and an industry difficult problem is how to control the stability of torsion at present.Existing screw thread demolding structure such as Fig. 1 are that the stretching handle tooth core B by spring A breaks away from from goods, and liftout plate is to be arranged at the below, and the tooth bar is controlled by spring in returning the process of coming, and this causes following bad:
1. the elastic force instability of spring uses the elastic force of a period of time rear spring in different size;
2. the tooth bar in the end one encloses the thread of easily pulling goods when withdrawing, influences outward appearance;
3. spring life can not guarantee;
4. the torsion instability of goods.
Because the elastic force of spring can not accurately be controlled, so thread core breaks away from the last thread of goods dampens easily, and torsion is also extremely unstable, causes the accurate thread Products Quality to go wrong.
Summary of the invention
Deficiency at existing plastic products torsional stability technology, the utility model provides a kind of rational in infrastructure, thread core (abbreviating the tooth core as) to take off the stable accurate plastics internal screw thread goods of screw thread and take off thread mechanism, this takes off the kind of drive that thread mechanism adopts the tooth core to cooperate with facing, effectively solves the problem of plastic products torsional stability.
The utility model is achieved through the following technical solutions:
The utility model comprises dynamic model and cover half, and both cooperate formation goods die cavity, and described dynamic model is provided with tooth core, tooth core driving mechanism, wherein
The tooth core passes dynamic model, and its moulding end of thread is located in the goods die cavity, and tooth core afterbody is connected on the tooth core driving mechanism, and the tooth core realizes that by the transmission of screw thread its moulding screw thread stretches into or breaks away from the goods cavity.
All there is screw thread at the two ends of described tooth core, head one end is to be used for the moulding screw thread that moulding is used, afterbody is to be used for the motion thread that transmission is used, the tooth core moulding end of thread is located in the goods die cavity, the tooth core passes dynamic model, and tooth core afterbody motion thread is connected on the tooth core driving mechanism, and the afterbody of tooth core cooperates with facing by motion thread, the tooth core realizes that by the transmission of screw thread its moulding end of thread stretches into or breaks away from the goods cavity, and facing is fixed on the dynamic model.
Described facing is fixed on the dynamic model by screw, and cooperates with the tooth core.
Described tooth core driving mechanism comprises power transmission shaft, and the one end connects with the tooth core, and the other end drives by drive unit.
Described power transmission shaft can be connected with drive unit by belt or chain.
Described facing inboard is provided with ball bushing, and this lining is placed on the tooth core bar.
The utility model drives power transmission shaft by the mould gear mechanism, power transmission shaft drives the tooth core and is rotated, thereby after injection mo(u)lding, the tooth core in the injection moulded products is carried out the demoulding, because tooth core and facing are threaded engagement, facing maintains static, when the tooth core rotates, also draw back synchronously, thereby realize thread stable demoulding from plastic products.
The utlity model has following useful effect:
1, the utility model adopts the kind of drive that the tooth core cooperates with facing, effectively solves the problem of plastic products torsional stability;
2, the utlity model has advantage reasonable in design, that transmission is stable, the precise injection molding product yields height of being produced.
Description of drawings
Fig. 1 is existing accurate plastics internal screw thread goods screw thread demolding structure schematic diagram;
Fig. 2 is the utility model structure side view;
Fig. 3 is the utility model mould gear drive schematic diagram;
Wherein, 1, dynamic model, 2, cover half, 3, the tooth core, 4, ball bushing, 5, facing, 6, power transmission shaft I, 7, gear, 8, bearing, 9, sprocket wheel, 10, power transmission shaft II.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: structure such as Fig. 2, shown in Figure 3, the utility model comprises dynamic model 1 and cover half 2, dynamic mould core cooperates formation goods die cavity with the cover half core, dynamic model is provided with tooth core 3, tooth core driving mechanism, the tooth core 3 moulding ends of thread are located in the goods die cavity, tooth core 3 passes dynamic model, tooth core bottom is connected with power transmission shaft I 6 and is driven by driving mechanism, the afterbody of tooth core 3 cooperates with facing 5 by screw thread, the tooth core realizes that by the transmission of screw thread its moulding end of thread stretches into or breaks away from the goods cavity, and facing 5 is fixed on the dynamic model by screw.The end of power transmission shaft I 6 is provided with bearing 8 and gear 7, and with the meshed transmission gear of another power transmission shaft II 10, power transmission shaft II is connected with drive unit by sprocket wheel 9 and the chain on it.Facing 5 next doors are provided with ball bushing 4, and this lining 4 is placed on tooth core 3 bars.
All there is screw thread at the two ends of tooth core 3, head one end is to be used for the moulding screw thread that moulding is used, afterbody is to be used for the motion thread that transmission is used, the tooth core moulding end of thread is located in the goods die cavity, the tooth core passes dynamic model, tooth core afterbody motion thread is connected on the tooth core driving mechanism, and the afterbody of tooth core cooperates with facing by motion thread.
The utility model is by the mould gear mechanism, as Fig. 3, drive power transmission shaft, power transmission shaft drives the tooth core and is rotated, thereby to the inner chamber debentition of injection moulded products, because tooth core and facing are threaded engagement, facing maintains static, when the tooth core rotates, also draw back synchronously, thereby realize thread stable demoulding from plastic products.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (6)
1, a kind of accurate plastics internal screw thread goods take off thread mechanism, comprise dynamic model and cover half, and both cooperate formation goods die cavity, and it is characterized in that: described dynamic model is provided with tooth core, tooth core driving mechanism, wherein
The tooth core passes dynamic model, and its moulding end of thread is located in the goods die cavity, and tooth core afterbody is connected on the tooth core driving mechanism, and the tooth core realizes that by the transmission of screw thread its moulding screw thread stretches into or breaks away from the goods cavity.
2, accurate plastics internal screw thread goods according to claim 1 take off thread mechanism, it is characterized in that: all there is screw thread at the two ends of described tooth core, head one end is to be used for the moulding screw thread that moulding is used, afterbody is to be used for the motion thread that transmission is used, the tooth core moulding end of thread is located in the goods die cavity, the tooth core passes dynamic model, and tooth core afterbody motion thread is connected on the tooth core driving mechanism.
3, accurate plastics internal screw thread goods according to claim 1 take off thread mechanism, it is characterized in that: described tooth core driving mechanism comprises power transmission shaft, and the one end connects with the tooth core, and the other end drives by drive unit.
4, accurate plastics internal screw thread goods according to claim 1 take off thread mechanism, and it is characterized in that: described facing is fixed on the dynamic model by screw, and cooperates with the tooth core.
5, accurate plastics internal screw thread goods according to claim 2 take off thread mechanism, it is characterized in that: described power transmission shaft can be connected with drive unit by belt or chain.
6, accurate plastics internal screw thread goods according to claim 1 take off thread mechanism, and it is characterized in that: described facing inboard is provided with ball bushing, and this lining is placed on the tooth core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389384U CN201410715Y (en) | 2009-06-18 | 2009-06-18 | De-threading mechanism of precise plastic inner-threaded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389384U CN201410715Y (en) | 2009-06-18 | 2009-06-18 | De-threading mechanism of precise plastic inner-threaded products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201410715Y true CN201410715Y (en) | 2010-02-24 |
Family
ID=41712607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201389384U Expired - Fee Related CN201410715Y (en) | 2009-06-18 | 2009-06-18 | De-threading mechanism of precise plastic inner-threaded products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201410715Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954694A (en) * | 2010-09-25 | 2011-01-26 | 晋亿实业股份有限公司 | Automatic sleeve demoulding mechanism |
| CN102205608A (en) * | 2011-01-28 | 2011-10-05 | 广东轻工职业技术学院 | Screw thread demoulding mechanism for dies and secure demoulding method |
| CN102294799A (en) * | 2010-11-05 | 2011-12-28 | 浙江凯华模具有限公司 | Rotary damage-free de-threading mechanism for injection mould |
| CN102357951A (en) * | 2011-08-11 | 2012-02-22 | 思柏精密模具注塑（无锡）有限公司 | Precision mold for cosmetic internal screw thread member |
| CN102975339A (en) * | 2012-12-14 | 2013-03-20 | 湖南鑫隆模塑科技开发有限公司 | Plastic injection mold for realizing simultaneously core pulling |
| CN103963242A (en) * | 2014-05-27 | 2014-08-06 | 泉州华硕实业有限公司 | Energy-saving teeth-twist injection mold capable of adjusting start teeth |
| CN104476726A (en) * | 2014-11-27 | 2015-04-01 | 倍仕得电气（杭州）有限公司 | High-precision injection molding mold for embedded type combined cable connector tooth core |
| CN109571886A (en) * | 2018-12-20 | 2019-04-05 | 深圳市利众汇科技有限公司 | Bottle cap die lifter |
-
2009
- 2009-06-18 CN CN2009201389384U patent/CN201410715Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954694A (en) * | 2010-09-25 | 2011-01-26 | 晋亿实业股份有限公司 | Automatic sleeve demoulding mechanism |
| CN102294799A (en) * | 2010-11-05 | 2011-12-28 | 浙江凯华模具有限公司 | Rotary damage-free de-threading mechanism for injection mould |
| CN102205608A (en) * | 2011-01-28 | 2011-10-05 | 广东轻工职业技术学院 | Screw thread demoulding mechanism for dies and secure demoulding method |
| CN102357951A (en) * | 2011-08-11 | 2012-02-22 | 思柏精密模具注塑（无锡）有限公司 | Precision mold for cosmetic internal screw thread member |
| CN102357951B (en) * | 2011-08-11 | 2012-06-13 | 思柏精密模具注塑（无锡）有限公司 | Precision mold for cosmetic internal screw thread member |
| CN102975339A (en) * | 2012-12-14 | 2013-03-20 | 湖南鑫隆模塑科技开发有限公司 | Plastic injection mold for realizing simultaneously core pulling |
| CN103963242A (en) * | 2014-05-27 | 2014-08-06 | 泉州华硕实业有限公司 | Energy-saving teeth-twist injection mold capable of adjusting start teeth |
| CN103963242B (en) * | 2014-05-27 | 2016-01-06 | 泉州华硕实业有限公司 | The strand tooth injection mold of energy-saving adjustable initial tooth |
| CN104476726A (en) * | 2014-11-27 | 2015-04-01 | 倍仕得电气（杭州）有限公司 | High-precision injection molding mold for embedded type combined cable connector tooth core |
| CN109571886A (en) * | 2018-12-20 | 2019-04-05 | 深圳市利众汇科技有限公司 | Bottle cap die lifter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20180618 |