CN219171509U - Anti-friction burning structure of injection mold and double-color injection mold - Google Patents
Anti-friction burning structure of injection mold and double-color injection mold Download PDFInfo
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- CN219171509U CN219171509U CN202223293601.5U CN202223293601U CN219171509U CN 219171509 U CN219171509 U CN 219171509U CN 202223293601 U CN202223293601 U CN 202223293601U CN 219171509 U CN219171509 U CN 219171509U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses an anti-friction burning structure of an injection mold and a double-color injection mold, and relates to the technical field of injection molds. The front die assembly and the rear die assembly can be far away from each other or close to each other so as to finish die opening and die closing; the row position is provided with an elastic piece, the elastic piece is in a compressed state when the die is closed, and after the die is opened, the elastic piece drives the row position to be separated from the rear die assembly to form a gap; the driving structure drives the row bit to move laterally. The utility model can ensure that the row position is not in direct contact with the back die assembly in the process of die assembly and die opening of the front die assembly and the back die assembly, and prevent the row position and the back die assembly from being burnt, thereby ensuring the yield of product forming.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to an anti-friction and anti-burning structure of an injection mold and a double-color injection mold.
Background
The injection molding process is commonly used for an injection mold, some plastic products with a back-off structure are generally processed by adopting the injection mold with a lateral core-pulling structure, wherein the injection mold with the lateral core-pulling structure generally comprises a row position capable of laterally moving, a front mold assembly and a rear mold assembly, a mold cavity for injection molding the products is formed by combining the row position, the front mold assembly and the rear mold assembly, the row position is slidably arranged on the front mold assembly or the rear mold assembly, when the mold is opened or closed, the row position needs to laterally move and is far away from or close to the mold cavity, in the process of laterally moving the row position, the row position and the front mold assembly or the rear mold assembly are scratched, and in the long-time production process, the repeated scratching and burning can influence the shape precision of the row position and the rear mold assembly or the front mold assembly, so as to influence the yield of the products.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides an anti-friction and anti-burning structure of an injection mold, wherein the elastic piece is arranged in the row position, and when the mold is opened, the elastic piece enables the row position and the rear mold assembly to generate a gap, so that the row position and the front mold assembly are prevented from being erased and burned when the row position moves laterally, and the yield of products is ensured.
The utility model also provides a double-color injection mold with the anti-scratch structure.
According to the first aspect of the utility model, the anti-friction burning structure of the injection mold comprises a front mold assembly, a rear mold assembly, a row position and a driving structure.
A front mold assembly;
the front die assembly and the rear die assembly can be mutually far away or mutually close to each other so as to finish die opening and die closing;
the line position is arranged on the rear die assembly, when the die is closed, the line position, the front die assembly and the rear die assembly are combined together to form a die cavity, the die cavity is used for injection molding to form a product, the line position is provided with an elastic piece, the line position is provided with a mounting hole, the elastic piece is arranged in the mounting hole, one end of the elastic piece is abutted against the rear die assembly, the elastic piece is in a compressed state when the die is closed, and after the die is opened, the elastic piece drives the line position and the rear die assembly to be separated to form a gap;
and the driving structure is in driving connection with the row bit, so that the row bit can move laterally.
The anti-burning structure of the injection mold provided by the embodiment of the utility model has at least the following beneficial effects:
when the mold is closed, the front mold assembly, the rear mold assembly and the row position are combined to form a mold cavity together, a product is formed by injection molding in the mold cavity, the front mold assembly and the rear mold assembly are mutually far away from each other to finish mold opening, when the mold is opened, the row position arranged on the rear mold assembly is close to the end face of the front mold assembly and loses pressure, an elastic piece arranged on the row position and in a compressed state in the mold closing state is stretched, a gap is formed between the row position and the rear mold assembly, and then the row position is driven by a driving structure to move along the direction far away from the product, so that the row position is prevented from being directly contacted with the rear mold assembly when being moved and is burnt; after the product is taken out, the front die assembly and the rear die assembly are close to each other so as to complete die assembly, before the front die assembly is contacted with the row position, the row position is driven by a driving structure to move to a position for forming a die cavity, the row position is prevented from being directly contacted with the rear die assembly in the moving process, after the front die assembly is contacted with the rear die assembly, the front die assembly, the rear die assembly and the row position are combined to form the die cavity together, an elastic piece arranged on the row position is compressed, and the cycle is performed, so that the row position is prevented from being directly contacted with the rear die assembly in the die assembly and die opening process, and the friction and burning of the row position and the rear die assembly are prevented, thereby ensuring the yield of product forming.
According to some embodiments of the utility model, the driving structure includes a guide pillar, the guide pillar is disposed obliquely, one end of the guide pillar is fixedly connected with the front module, the row position is provided with a guide pillar hole, and the guide pillar slidably penetrates through the guide pillar hole.
According to some embodiments of the utility model, the rear die assembly is further provided with a stopper, the stopper is located at one end of the row position close to the front die assembly, and a gap is left between the stopper and the row position.
According to some embodiments of the utility model, the inner diameter of the guide post hole is larger than the largest dimension of the cross section of the guide post.
According to some embodiments of the utility model, the axis of the guide post and the axis of the guide post hole are parallel to each other.
According to some embodiments of the utility model, the front die assembly comprises a front die assembly, a die cavity is formed in the front die assembly, the die cavity is provided with a die cavity, the die cavity is provided with a plurality of rows of die heads, the die heads are arranged in the front die assembly, and the die heads are arranged in the die cavity.
According to some embodiments of the utility model, the wear-resistant block is arranged on the rear die assembly, the row position is abutted with the wear-resistant block, and the row position can slide on the surface of the wear-resistant block.
According to some embodiments of the utility model, the elastic member comprises an elastic part and a rolling part, one end of the elastic part is connected with the row position, the other end is connected with the rolling part, and the rolling part is in rolling abutting connection with the rear die assembly.
According to some embodiments of the utility model, the elastic member comprises an elastic part and a rolling part, one end of the elastic part is connected with the row position, the other end is connected with the rolling part, and the rolling part is in rolling abutting connection with the rear die assembly.
According to some embodiments of the utility model, the elastic member is a ball screw.
The double-color injection mold according to the second aspect of the embodiment of the utility model comprises the anti-scratch structure of the injection mold according to the first aspect of the embodiment of the utility model.
The double-color injection mold provided by the embodiment of the utility model has at least the following beneficial effects: the injection mold according to the embodiment of the first aspect has all the beneficial effects of the anti-seizing structure, and will not be described herein.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a cross-sectional view of an anti-seizing structure of an injection mold according to an embodiment of the present utility model;
fig. 2 is an exploded view of the injection mold according to the embodiment of the utility model after the anti-friction sintering structure is partially removed.
Reference numerals:
a front module assembly 100;
a mold cavity 500.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The utility model also provides a double-color injection mold with the anti-scratch structure.
Referring to fig. 1 and 2, the anti-seizing structure of an injection mold according to the first aspect of the present utility model includes a front mold assembly 100, a rear mold assembly 200, a row position 300 and a driving structure.
A front module assembly 100;
the rear mold assembly 200, the front mold assembly 100 and the rear mold assembly 200 may be far away from each other or close to each other to complete mold opening and closing;
the row position 300, the row position 300 is arranged on the rear die assembly 200, when the die is assembled, the row position 300, the front die assembly 100 and the rear die assembly 200 are combined together to form a die cavity 500, the die cavity 500 is used for injection molding to form a product, the row position 300 is provided with an elastic piece 330, the row position 300 is provided with a mounting hole 311, the elastic piece 330 is arranged in the mounting hole 311, one end of the elastic piece 330 is abutted against the rear die assembly 200, the elastic piece 330 is in a compressed state when the die is assembled, and after the die is opened, the elastic piece 330 drives the row position 300 to be separated from the rear die assembly 200 to form a gap;
the driving structure drives the connecting row bit 300, so that the row bit 300 can move laterally.
Referring to fig. 1, according to the anti-seizing structure of the injection mold of the embodiment of the utility model, when the mold is closed, the front mold assembly 100, the rear mold assembly 200 and the row 300 are combined together to form the mold cavity 500, the product is formed by injection molding into the mold cavity 500, after the product is formed, the front mold assembly 100 and the rear mold assembly 200 are separated from each other to complete mold opening, when the mold is opened, the row 300 arranged on the rear mold assembly 200 is close to the end face of the front mold assembly 100 and loses pressure, the elastic member 330 arranged on the row 300 and in a compressed state in the closing state is stretched, so that a gap is generated between the row 300 and the rear mold assembly 200, and then the row 300 is moved in a direction away from the product under the driving of the driving structure, so that the row 300 is prevented from being in direct contact with the rear mold assembly 200 when being moved, and seizing is generated; after the product is taken out, the front mold assembly 100 is close to the rear mold assembly 200 to complete mold assembly, before the front mold assembly 100 is contacted with the row position 300, the row position 300 is driven by a driving structure to move to a position for forming the mold cavity 500, the row position 300 is prevented from being directly contacted with the rear mold assembly 200 in the moving process, after the front mold assembly 100 is contacted with the rear mold assembly 200, the front mold assembly 100, the rear mold assembly 200 and the row position 300 are combined to jointly form the mold cavity 500, and the elastic piece 330 arranged on the row position 300 is compressed, so that the circulation is ensured, the row position 300 is not directly contacted with the rear mold assembly 200 in the mold assembly and mold opening process, and the friction and burning of the row position 300 and the rear mold assembly 200 are prevented, thereby ensuring the yield of product molding.
Referring to fig. 1, in the present embodiment, the row position 300 includes a row position block 310 and a row position mounting block 320, the row position block 310 is fixedly connected with the row position mounting block 320, the rear mold assembly 200 includes a rear mold core 210 and a rear mold insert 220, the rear mold insert 220 is disposed on the rear mold core 210, the row position block 310, the front mold assembly 100 and the rear mold insert 220 are combined together to form a mold cavity 500, the elastic member 330 abuts against the rear mold core 210, and in the process of mold opening and closing, the elastic member 330 makes a gap between the row position block 310 and the rear mold core 210 to prevent the row position block 310 and the rear mold core 210 from being burned.
Referring to fig. 1, according to some embodiments of the present utility model, the driving structure includes a guide column 410, the guide column 410 is disposed obliquely, one end of the guide column 410 is fixedly connected with the front module 100, the row 300 is provided with a guide column hole 321, and the guide column 410 slidably passes through the guide column hole 321.
It can be understood that, during the mold opening, the guide pillar 410 moves along the front mold assembly 100 in a direction away from the rear mold assembly 200, the guide pillar 410 contacts with the inner wall surface of the guide pillar hole 321, and the guide pillar 410 generates a force perpendicular to the guide pillar 410 through the inner wall surface of the guide pillar hole 321 to face the row position 300, and the force can be decomposed into two component forces, wherein one component force is parallel to the mold opening direction, the other direction is perpendicular to the mold opening direction, and the row position 300 moves in a direction away from the product under the action of the component force perpendicular to the mold opening direction. In this way, the lateral movement of the row 300 is linked with the mold opening and closing action, so that the structure is compact and the movement is reliable.
Referring to fig. 2, according to some embodiments of the present utility model, the rear mold assembly 200 is further provided with a stopper 230, the stopper 230 is located at one end of the row 300 near the front mold assembly 100, and a gap is left between the stopper 230 and the row 300.
It can be understood that, during mold opening, the force generated by the guide post 410 on the row 300 perpendicular to the guide post 410 can be decomposed into two component forces, wherein one component force is parallel to the mold opening direction, the other component force is perpendicular to the mold opening direction, the component force parallel to the mold opening direction can enable the row 300 to move along the mold opening direction, excessive movement of the row 300 along the mold opening direction can enable the elastic member 330 to separate from the rear mold assembly 200, so that the movement of the row 300 is unstable, in order to limit the moving distance of the row 300 in the mold opening direction, the rear mold assembly 200 is further provided with a limiting block 230, in this embodiment, convex edges 322 are formed at two ends of the row mounting block 320, the limiting block 230 is arranged at one end of the convex edges 322 close to the front mold assembly 100, and a gap is left between the limiting block 230 and the convex edges 322, so that during mold opening, after the row 300 and the rear mold assembly 200 generate a gap, the limiting block 230 can limit the row 300 to continue to move along the mold opening direction.
Referring to fig. 1, according to some embodiments of the utility model, the inner diameter of the guide post hole 321 is greater than the largest dimension of the cross section of the guide post 410.
It can be appreciated that by setting the inner diameter of the guide post hole 321 to be larger than the maximum size of the cross section of the guide post 410, the row position 300 can generate a delay movement effect during mold opening, when the mold is opened, the guide post 410 moves along with the front mold assembly 100 in a direction away from the rear mold assembly 200, because the inner diameter of the guide post hole 321 is larger than the diameter of the guide post 410, the guide post 410 moves a certain distance and then contacts with the inner wall surface of the guide post hole 321, before that, the row position 300 cannot move in the left-right direction, and the spring member can drive the row position 300 to move in the mold opening direction because of losing the pressure of the front mold assembly 100, so that a gap is generated between the row position 300 and the rear mold assembly 200 and the product is separated, and then the guide post 410 contacts with the inner wall surface of the guide, so that the row position 300 can move in a direction away from the product under the driving of the guide post 410, and the row position 300 can be prevented from being pulled and damaged when the product is laterally moved.
Referring to fig. 1, according to some embodiments of the present utility model, the axis of the guide post 410 and the axis of the guide post hole 321 are parallel to each other.
It can be appreciated that the axis of the guide pillar 410 is parallel to the axis of the guide pillar hole 321, so that the guide pillar 410 is always in line contact with the inner wall surface of the guide pillar hole 321, and the guide pillar 410 is more stable when driving the row 300 to move.
Referring to fig. 1, according to some embodiments of the present utility model, a shovel base is fixedly connected to the front module 100, one end of the shovel base abuts against one end of the row 300, which is far from the mold cavity 500, and a surface of the shovel base abutting against the row 300 is an inclined surface.
It can be appreciated that when the mold is closed, the shovel base can cooperate with the guide post 410 to drive the row position 300 to move towards the position where the mold cavity 500 is formed, specifically, the shovel base is arranged on the front mold assembly 100, when the mold is closed, the shovel base follows the front mold assembly 100 to approach the row position 300 together, when the shovel base contacts with the row position 300 through the inclined plane, the shovel base generates an acting force perpendicular to the inclined plane on the row position 300, the acting force drives the row position 300 to move towards the position where the mold cavity 500 is formed, in addition, after the mold is closed, the shovel base can also play a role of pressing the row position 300, so that the movement of the row position 300 is prevented from influencing the formation of a product during injection molding.
Referring to fig. 1, according to some embodiments of the present utility model, the rear mold assembly 200 further includes a wear-resistant block 240, the wear-resistant block 240 is disposed on the rear mold assembly 200, the row 300 is abutted against the wear-resistant block 240, and the row 300 can slide on the surface of the wear-resistant block 240.
It should be noted that, in this embodiment, the row position mounting block 320 abuts against the wear-resistant block 240 to reduce wear of the row position block 310, and in other embodiments, the row position 300 may be made into an integral structure and wear-resistant to the portion contacting the wear-resistant block 240, where the wear-resistant treatment may be quenching, carburizing, or spraying a wear-resistant coating.
Referring to fig. 1, according to some embodiments of the present utility model, the elastic member 330 includes an elastic portion having one end connected to the row 300 and the other end connected to a rolling portion, and the rolling portion rollably abuts against the rear module 200.
It can be appreciated that, in order to reduce the friction between the elastic member 330 and the rear module 200 when the row 300 moves laterally, the elastic member 330 is provided with a rolling portion in addition to the elastic portion, the rolling portion is rollably abutted against the rear module 200, and the rolling portion rolls along the rear module 200 when the row 300 moves laterally, so that the row 300 moves laterally more smoothly, and the abrasion between the elastic member 330 and the rear module 200 is reduced.
Referring to fig. 1, according to some embodiments of the utility model, the elastic member 330 is a ball screw.
The ball spring is screwed in the row position 300, a spring is provided in the ball screw, a ball is provided at one end of the ball, the ball is abutted against the rear module 200, the spring in the ball screw is compressed during mold closing, the screw in the ball is extended during mold opening, a gap is formed between the row position 300 and the rear module 200, and the ball rolls on the convenient surface of the rear module 200 when the row position 300 moves laterally. It can be understood that the ball screw is an existing product and is easy to purchase.
The double-color injection mold according to the second aspect of the embodiment of the utility model comprises the anti-scratch structure of the injection mold according to the first aspect of the embodiment of the utility model.
The double-color injection mold provided by the embodiment of the utility model has at least the following beneficial effects: the injection mold according to the embodiment of the first aspect has all the beneficial effects of the anti-seizing structure, and will not be described herein.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. An anti-seizing structure of injection mold, characterized by comprising:
a front mold assembly;
the front die assembly and the rear die assembly can be mutually far away or mutually close to each other so as to finish die opening and die closing;
the line position is arranged in the rear die assembly, when the die is closed, the line position, the front die assembly and the rear die assembly are combined together to form a die cavity, the die cavity is used for injection molding to form a product, the line position is provided with an elastic piece, the line position is provided with a mounting hole, the elastic piece is arranged in the mounting hole, one end of the elastic piece is abutted to the rear die assembly, the elastic piece is in a compressed state when the die is closed, and after the die is opened, the elastic piece drives the line position and the rear die assembly to be separated to form a gap;
and the driving structure is in driving connection with the row bit, so that the row bit can move laterally.
2. The structure of claim 1, wherein the driving structure comprises a guide post, the guide post is arranged obliquely, one end of the guide post is fixedly connected with the front die assembly, the row position is provided with a guide post hole, and the guide post slidably penetrates through the guide post hole.
3. The anti-seizing structure of injection mold according to claim 2, wherein the rear mold assembly is further provided with a stopper, the stopper is located at one end of the row close to the front mold assembly, and a gap is left between the stopper and the row.
4. The anti-seizing structure of injection mold according to claim 2, characterized in that the inner diameter of the guide post hole is larger than the largest dimension of the cross section of the guide post.
5. The structure of claim 2, wherein the axis of the guide post and the axis of the guide post hole are parallel to each other.
6. The structure of claim 1, further comprising a shovel base fixedly connected to the front mold, wherein one end of the shovel base abuts against one end of the row of the mold cavity, which is far away from the mold cavity, and a surface of the shovel base abutting against the row of the mold cavity is an inclined surface.
7. The anti-seizing structure of injection mold according to claim 1, further comprising a wear block, said wear block being disposed on the rear mold assembly, said row being in abutment with said wear block, said row being slidable on a surface of said wear block.
8. The structure of claim 1, wherein the elastic member comprises an elastic portion and a rolling portion, one end of the elastic portion is connected to the row position, the other end is connected to the rolling portion, and the rolling portion is in rolling contact with the rear mold assembly.
9. The anti-seizing structure of injection mold according to claim 8, wherein said elastic member is a ball screw.
10. A two-shot injection mold characterized by comprising the injection mold anti-seizing structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223293601.5U CN219171509U (en) | 2022-12-07 | 2022-12-07 | Anti-friction burning structure of injection mold and double-color injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223293601.5U CN219171509U (en) | 2022-12-07 | 2022-12-07 | Anti-friction burning structure of injection mold and double-color injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219171509U true CN219171509U (en) | 2023-06-13 |
Family
ID=86660782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223293601.5U Active CN219171509U (en) | 2022-12-07 | 2022-12-07 | Anti-friction burning structure of injection mold and double-color injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219171509U (en) |
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2022
- 2022-12-07 CN CN202223293601.5U patent/CN219171509U/en active Active
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