CN211221824U - Gear injection mold containing high-pressure spring - Google Patents
Gear injection mold containing high-pressure spring Download PDFInfo
- Publication number
- CN211221824U CN211221824U CN201922058873.9U CN201922058873U CN211221824U CN 211221824 U CN211221824 U CN 211221824U CN 201922058873 U CN201922058873 U CN 201922058873U CN 211221824 U CN211221824 U CN 211221824U
- Authority
- CN
- China
- Prior art keywords
- pressure spring
- mold
- metal worm
- positioning insert
- gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 30
- 239000007924 injection Substances 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 68
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims description 32
- 239000003292 glue Substances 0.000 claims description 25
- 238000012423 maintenance Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a gear injection mold who contains high pressure spring, including movable mould template (1), cover half template (2), movable mould template (1) lower extreme be equipped with a plurality of cavities (5) of moulding plastics, be equipped with movable mould location mold insert (3) on every cavity (5) of moulding plastics, cover half template (2) in be equipped with a plurality of metal worms (6), each metal worm (6) respectively with each movable mould location mold insert (3) one-to-one, metal worm (6) under still be equipped with high pressure spring (8), during the compound die, make metal worm (6) top pass and mould plastics cavity (5) and movable mould location mold insert (3) bottom butt through the elasticity of high pressure spring (8). Compared with the prior art, the utility model discloses a high-pressure spring compensaties metal worm size error to reduce the mould damage, improve product quality.
Description
Technical Field
The utility model belongs to the technical field of gear injection moulding and specifically relates to a gear injection mold who contains high-pressure spring is related to.
Background
The gear is a mechanical element which is connected with the gear on the wheel rim and transmits motion and power in a meshing manner, compared with a metal gear, the plastic gear has more lubricity and wear resistance, can reduce noise, reduce cost and reduce friction, and needs to be completed through injection molding of a corresponding injection mold.
Traditional injection mold is worm gear injection mold generally, need to put into injection mold with the metal worm that processes, carries out the moulding plastics of plastics gear, but there is the conflict in total length and the injection mold cooperation size of metal worm processing, often because of metal pole size problem, leads to injection mold to press by force and causes the mould to damage or gear injection moulding position size deviation. Specifically, the tolerance of the total length of the metal worm is +/-0.1 mm, the matching size of the die is medium-difference, so that when the size of the metal worm is too long, a pressing die is caused, and when the size of the metal worm is too short, the matching is not tight, so that the position deviation of the gear is caused.
Such deviation would result in slower molding efficiency, failing to improve the operation efficiency of the injection mold, reducing the practicability of the mold and the injection quality, so it is necessary to improve the prior art to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compensate metal worm size error through high-pressure spring in order to overcome the defect that above-mentioned prior art exists to reduce the gear injection mold that the mould harmd, improved product quality.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a gear injection mold who contains high pressure spring, includes movable mould template, cover half template, movable mould template lower extreme be equipped with a plurality of cavitys of moulding plastics, be equipped with movable mould location mold insert on every cavity of moulding plastics, cover half template in be equipped with a plurality of metal worms, each metal worm respectively with each movable mould location mold insert one-to-one, metal worm under still be equipped with high pressure spring, during the compound die, make metal worm top pass the cavity of moulding plastics and movable mould location mold insert bottom butt through high pressure spring's elasticity.
Furthermore, the movable mould template is also provided with a glue inlet, and the glue inlet is connected with the injection molding cavity through a glue inlet channel.
Furthermore, the glue inlet is provided with one or more glue inlets, and each glue inlet is respectively connected with each injection molding cavity through one or more glue inlet channels.
Further, the shape of the injection molding cavity is consistent with that of the gear to be molded.
Furthermore, the metal worm is in a straight rod shape, clamping grooves are formed in the bottom and the top of the metal worm, threads are formed in the middle of the metal worm, the bottom of the metal worm is installed on the fixed die positioning insert, the top of the metal worm penetrates through the center of the injection molding cavity after die assembly and is connected with the bottom of the movable die positioning insert above the injection molding cavity, and clamping blocks matched with the clamping grooves are arranged at the bottom of the movable die positioning insert.
Furthermore, a mounting hole for mounting the metal worm is formed in the fixed die template, and threads matched with the threads in the middle of the metal worm are arranged on the inner wall of the mounting hole.
Furthermore, the fixed die positioning insert is step-shaped, the high-pressure spring is positioned at the bottom of the fixed die positioning insert, and the fixed die positioning insert can move up and down under the elasticity of the high-pressure spring to drive the metal worm arranged on the fixed die positioning insert to move.
Furthermore, the movable die positioning insert is fixedly installed in the movable die template, and the movable die positioning insert and the fixed die positioning insert are respectively positioned above and below the metal worm to position the metal worm.
Furthermore, the deformation amount of the high-pressure spring is 0.2-0.5 mm. The high-pressure spring can ensure that the movable mold positioning insert and the fixed mold positioning insert compress a metal worm product with the maximum negative error of-0.1 mm in a natural state, and the bump on the metal worm is at the relative position of an injection molding cavity, so that the quality of the gear product is ensured.
Further, the die joint slider that the injection molding piece of being convenient for takes out still is equipped with between movable mould template and the cover half template, the die joint slider be located the cavity below of moulding plastics.
When the injection molding machine is used for injection molding, the injection molding machine is started, the mold is closed, the movable mold template and the fixed mold template are pressed tightly in a high pressing mode, the movable mold positioning insert and the fixed mold positioning insert position the metal worm, at the moment, the parting surface sliding block is closed, the position of the metal worm is adjusted through the high-pressure spring, injection molding starts, glue melting enters from the glue inlet, the plastic gear is molded in the injection molding cavity, the mold is opened, the movable mold template and the fixed mold template are separated, the parting surface sliding block is opened, and the whole molded product.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the product quality is ensured: the problem that in the existing scheme, when the metal worm has lower tolerance, the positioning of two sides cannot position and press a product, so that the position deviation of the plastic gear is large is solved;
(2) saving the maintenance cost of the die: in the current scheme of overcoming, during tolerance on the metal worm, both sides location space is not enough, and the metal worm leads to the mould damage with mould pressure die closing, and later stage cost of maintenance is high problem.
Drawings
FIG. 1 is a view of an injection mold for a gear according to an embodiment;
FIG. 2 is a schematic diagram of the relative positions of a metal worm and a gear product in an embodiment;
the reference numbers in the figures indicate: the injection molding machine comprises a movable mold template 1, a fixed mold template 2, a movable mold positioning insert 3, a glue inlet 4, an injection molding cavity 5, a metal worm 6, a clamping groove 61, threads 62, a fixed mold positioning insert 7, a high-pressure spring 8 and a parting surface slide block 9.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
The utility model provides a gear injection mold who contains high pressure spring, includes movable mould template 1, cover half template 2, 1 lower extreme of movable mould template be equipped with a plurality of cavities 5 of moulding plastics, be equipped with movable mould location mold insert 3 on every cavity 5 of moulding plastics, cover half template 2 in be equipped with a plurality of metal worms 6, each metal worm 6 respectively with each movable mould location mold insert 3 one-to-one, metal worm 6 under still be equipped with high pressure spring 8, during the compound die, make 6 tops of metal worm pass the cavity 5 of moulding plastics and 3 bottom butts of movable mould location mold insert through high pressure spring 8's elasticity. The movable mould template 1 is also provided with a glue inlet 4, and the glue inlet 4 is connected with an injection molding cavity 5 through a glue inlet channel. The glue inlet 4 is provided with one or more glue inlets, and each glue inlet 4 is respectively connected with each injection molding cavity 5 through one or more glue inlet channels. The shape of the injection cavity 5 corresponds to the shape of the gear to be formed.
As shown in fig. 2, the metal worm 6 is in a straight rod shape, the bottom and the top of the metal worm are both provided with a clamping groove 61, the middle of the metal worm is provided with threads 62, the bottom of the metal worm is mounted on the fixed mold positioning insert 7, the top of the metal worm penetrates through the center position of the injection molding cavity 5 after mold closing and is connected with the bottom of the movable mold positioning insert 3 above the injection molding cavity, and the bottom of the movable mold positioning insert 3 is provided with a clamping block matched with the. And a mounting hole for mounting the metal worm 6 is formed in the fixed die plate 2, and threads matched with the threads 62 in the middle of the metal worm 6 are arranged on the inner wall of the mounting hole. The fixed die positioning insert 7 is step-shaped, the high-pressure spring 8 is positioned at the bottom of the fixed die positioning insert 7, and the fixed die positioning insert 7 can move up and down under the elasticity of the high-pressure spring 8 to drive the metal worm 6 arranged on the fixed die positioning insert to move. The moving die positioning insert 3 is fixedly arranged in the moving die template 1, and the moving die positioning insert 3 and the fixed die positioning insert 7 are respectively positioned above and below the metal worm 6 and play a role in positioning the metal worm 6.
The deformation amount of the high-pressure spring 8 is 0.2-0.5 mm. The high-pressure spring can ensure that the movable mold positioning insert and the fixed mold positioning insert compress a metal worm product with the maximum negative error of-0.1 mm in a natural state, and the bump on the metal worm is at the relative position of an injection molding cavity, so that the quality of the gear product is ensured. Still be equipped with the die joint slider 9 that the injection molding of being convenient for took out between movable mould template 1 and the cover half template 2, die joint slider 9 be located the cavity of moulding plastics 5 below.
When the injection molding machine is used for injection molding, the injection molding machine is started, the mold is closed, the movable mold template and the fixed mold template are pressed tightly in a high pressing mode, the movable mold positioning insert and the fixed mold positioning insert position the metal worm, at the moment, the parting surface sliding block is closed, the position of the metal worm is adjusted through the high-pressure spring, injection molding starts, glue melting enters from the glue inlet, the plastic gear is molded in the injection molding cavity, the mold is opened, the movable mold template and the fixed mold template are separated, the parting surface sliding block is opened, and the whole molded product.
Claims (10)
1. The utility model provides a gear injection mold who contains high pressure spring, includes movable mould template (1), cover half template (2), its characterized in that, movable mould template (1) lower extreme be equipped with a plurality of cavities (5) of moulding plastics, be equipped with movable mould positioning insert (3) on every cavity (5) of moulding plastics, cover half template (2) in be equipped with a plurality of metal worms (6), each metal worm (6) respectively with each movable mould positioning insert (3) one-to-one, metal worm (6) under still be equipped with high pressure spring (8), during the compound die, make metal worm (6) top pass and mould plastics cavity (5) and movable mould positioning insert (3) bottom butt through the elasticity of high pressure spring (8).
2. The gear injection mold containing the high-pressure spring as claimed in claim 1, wherein the movable mold plate (1) is further provided with a glue inlet (4), and the glue inlet (4) is connected with the injection cavity (5) through a glue inlet channel.
3. The gear injection mold containing the high-pressure spring as claimed in claim 2, wherein one or more glue inlets (4) are provided, and each glue inlet (4) is connected with each injection molding cavity (5) through one or more glue inlet channels.
4. An injection mould for a gear comprising a high pressure spring according to claim 1, characterised in that the shape of the injection cavity (5) corresponds to the shape of the gear to be formed.
5. The gear injection mold with the high-pressure spring as claimed in claim 1, wherein the metal worm (6) is in a straight rod shape, clamping grooves (61) are formed in the bottom and the top of the metal worm, threads (62) are formed in the middle of the metal worm, the bottom of the metal worm is mounted on the fixed mold positioning insert (7), the top of the metal worm penetrates through the center of the injection molding cavity (5) after mold closing and is connected with the bottom of the movable mold positioning insert (3) above the injection molding cavity, and clamping blocks matched with the clamping grooves are arranged at the bottom of the movable mold positioning insert (3).
6. The gear injection mold containing the high-pressure spring as claimed in claim 5, wherein a mounting hole for mounting the metal worm (6) is formed in the fixed mold plate (2), and the inner wall of the mounting hole is provided with a thread matched with the middle thread (62) of the metal worm (6).
7. The gear injection mold with the high-pressure spring as claimed in claim 5, wherein the fixed mold positioning insert (7) is step-shaped, the high-pressure spring (8) is located at the bottom of the fixed mold positioning insert (7), and the fixed mold positioning insert (7) can move up and down under the elastic force of the high-pressure spring (8) to drive the metal worm (6) arranged on the fixed mold positioning insert to move.
8. The gear injection mold containing the high-pressure spring as claimed in claim 1, wherein the movable mold positioning insert (3) is fixedly installed in the movable mold plate (1), and the movable mold positioning insert (3) and the fixed mold positioning insert (7) are respectively located above and below the metal worm (6) to position the metal worm (6).
9. The injection mold for a gear with a high-pressure spring as claimed in claim 1, wherein the deformation amount of the high-pressure spring (8) is 0.2-0.5 mm.
10. The gear injection mold with the high-pressure spring as claimed in claim 1, wherein a parting surface slide block (9) facilitating the removal of an injection molded part is further arranged between the movable mold plate (1) and the fixed mold plate (2), and the parting surface slide block (9) is located below the injection molding cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922058873.9U CN211221824U (en) | 2019-11-26 | 2019-11-26 | Gear injection mold containing high-pressure spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922058873.9U CN211221824U (en) | 2019-11-26 | 2019-11-26 | Gear injection mold containing high-pressure spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211221824U true CN211221824U (en) | 2020-08-11 |
Family
ID=71935089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922058873.9U Expired - Fee Related CN211221824U (en) | 2019-11-26 | 2019-11-26 | Gear injection mold containing high-pressure spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211221824U (en) |
-
2019
- 2019-11-26 CN CN201922058873.9U patent/CN211221824U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200811 |