CN217073152U - Die set - Google Patents
Die set Download PDFInfo
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- CN217073152U CN217073152U CN202123127554.2U CN202123127554U CN217073152U CN 217073152 U CN217073152 U CN 217073152U CN 202123127554 U CN202123127554 U CN 202123127554U CN 217073152 U CN217073152 U CN 217073152U
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Abstract
The application provides a mold, which comprises a mold core, a first taper pin component and a second taper pin component, wherein the first taper pin component comprises a plurality of first taper pins, the plurality of first taper pins are movably arranged on the mold core, the inclination angle of the first taper pins is a first inclination angle, the second taper pin component comprises a plurality of second taper pins, the plurality of second taper pins are movably arranged on the mold core, the inclination angle of the second taper pins is a second inclination angle, and the second inclination angle is smaller than the first inclination angle; the first angle pin and the second angle pin are arranged alternately, the mold core, the first angle pin and the second angle pin are arranged in an enclosing mode to form a molding cavity used for molding a product with an annular structure, and the first angle pin and the second angle pin move towards the middle of the mold core when being ejected out. This application is through the product of first taper pin and second taper pin injection moulding all-round structure, and first taper pin and second taper pin break away from the product in step when the drawing of patterns, avoids the product to take place to warp, has improved the stability of mould and the yields of product.
Description
Technical Field
The utility model relates to an injection moulding technical field especially relates to a mould.
Background
After an existing mold is used for injection molding of a product with a full-circle back-off structure, a male mold sliding block is synchronously driven when a mold parting surface opens the mold, the sliding block in the male mold is withdrawn from the inner side back-off of a product part, and then all angle pins eject out the product. However, when the mold is used for injection molding of a product, the product is affected by the wrapping force of the sliding block, the inverted buckle structure of the product loses support when the sliding block exits from the inner side inverted buckle of the product part, and the product part corresponding to the sliding block is not supported by external force when the product is ejected out by the angle pin, so that the product is deformed.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a mold to solve the problem that the product is easy to deform during demolding after the mold is injection molded with the full-circumference undercut structure.
The embodiment of the application provides a mould for the injection moulding product, the mould includes mould benevolence, the mould still includes: the first taper pin assembly comprises a plurality of first taper pins, the first taper pins are movably arranged on the die core, and the inclination angle of the first taper pins is a first inclination angle; the second taper pin assembly comprises a plurality of second taper pins, the second taper pins are movably arranged on the die core, the inclination angle of the second taper pins is a second inclination angle, and the second inclination angle is smaller than the first inclination angle; the first angle pin and the second angle pin are arranged alternately, the mold core, the first angle pin and the second angle pin are arranged in an enclosing mode to form a molding cavity used for molding the product with an annular structure, and the first angle pin and the second angle pin move towards the middle of the mold core when being ejected out.
In some embodiments, the first angle pin has a first projection, the second angle pin has a second projection, and the first projection and the second projection are used for forming an inverted structure of a product.
In some embodiments, the cavity is a square ring, and an included angle between the first taper pin and the adjacent second taper pin moving towards the middle of the mold core is 45 °.
In some embodiments, the surface of the first taper pin that mates with the second taper pin is a chamfer.
In some embodiments the first angle of inclination is in the range of 10-17.
In some embodiments the second angle of inclination is in the range of 4 ° to 8 °.
In some embodiments, the first taper pin is provided with a first connecting surface for cooperating with an adjacent second taper pin, the second taper pin is provided with a second connecting surface for cooperating with the first connecting surface, the first connecting surface is inclined towards an inner direction of the first taper pin, the second connecting surface is inclined towards an outer direction of the second taper pin, and the first connecting surface and the second connecting surface are inclined at an angle complementary to each other.
In some embodiments the angle of inclination between the first connecting surface and the direction of ejection of the angle pin is in the range 7-10 °.
In some embodiments the first and second angle pin assemblies each comprise an angle pin ejector pin connected with the first and second angle pins, the angle pin ejector pin connected to an external drive.
In some embodiments, the first angle pin and the angle pin top rod and the second angle pin and the angle pin top rod are all of an integrated structure.
The mold is used for injection molding of a product with a full-circle structure through the first taper pin and the second taper pin, the first taper pin and the second taper pin move towards the middle part of the mold core after the product is molded, so that the first taper pin and the second taper pin are separated from the product, and the first taper pin and the second taper pin are synchronously separated from the product during demolding, so that the problem of deformation caused by uneven stress of the product can be avoided. Compared with the prior art, this application is through the product of first taper pin and second taper pin injection moulding full cycle structure, and breaks away from in the drawing of patterns taper pin is synchronous, avoids the product to take place to warp, has improved the stability of mould and the yields of product.
Drawings
Fig. 1 is a schematic perspective view of a mold according to an embodiment of the present application.
Fig. 2 is a schematic perspective view of the mold shown in fig. 1 at another angle.
Fig. 3 is a perspective view of the first and second taper pin assemblies shown in fig. 1.
Fig. 4 is a schematic perspective view of the first taper pin shown in fig. 3.
Fig. 5 is a perspective view of the second taper pin shown in fig. 3.
Fig. 6 is an exploded perspective view of the first and second tilt pin assemblies shown in fig. 3.
Fig. 7 is a perspective view of the first taper pin shown in fig. 4 at another angle.
Description of the main elements
Mold 100
Mold insert 20
First angle pin assembly 30
Angle pin top bar 34
Second angle pin assembly 40
Second projecting portion 42
Axis L
First inclination angle theta 1
Second inclination angle theta 2
Third inclination angle theta 3
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the application provides a mould for the injection moulding product, the mould includes mould benevolence, the mould still includes: the first taper pin assembly comprises a plurality of first taper pins, the first taper pins are movably arranged on the die core, and the inclination angle of the first taper pins is a first inclination angle; the second taper pin assembly comprises a plurality of second taper pins, the second taper pins are movably arranged on the die core, the inclination angle of the second taper pins is a second inclination angle, and the second inclination angle is smaller than the first inclination angle; the first angle pin and the second angle pin are arranged alternately, the mold core, the first angle pin and the second angle pin are arranged in an enclosing mode to form a molding cavity used for molding the product with an annular structure, and the first angle pin and the second angle pin move towards the middle of the mold core when being ejected out.
This application is through the product of first taper pin and second taper pin injection moulding full cycle structure, and first taper pin and second taper pin break away from the product in step when the drawing of patterns, avoid the inhomogeneous emergence of product atress to warp, have improved the stability of mould and the yields of product.
Embodiments of the present application will be further described with reference to the accompanying drawings.
Referring to fig. 1, the present application is directed to a mold 100 for injection molding a product 10 having a full undercut configuration.
Referring to fig. 2 and 3, the mold 100 has a mold core 20 and an axis L located at the middle position of the mold core 20. Mold 100 also includes a first angle pin assembly 30 and a second angle pin assembly 40. The first taper pin assembly 30 includes a plurality of first taper pins 31, the plurality of first taper pins 31 are movably disposed in the mold core 20, and as the first taper pins 31 are obliquely disposed in the mold core 20, referring to fig. 4, the first taper pins 31 and the axis L form a first inclination angle θ 1 . The second taper pin assembly 40 includes a plurality of second taper pins 41, the plurality of second taper pins 41 are movably disposed in the mold core 20, and since the second taper pins 41 are obliquely disposed in the mold core 20, referring to fig. 5, the second taper pins 41 and the axis L form a second inclination angle θ 2 。
The first taper pins 31 and the second taper pins 41 are alternately arranged in the mold core 20, the first taper pins 31 and the second taper pins 41 surround to form a molding cavity 50, and the molding cavity 50 is used for injection molding of the product 10 with an annular structure. The product 10 shown in fig. 1 is a square ring structure, with the first angle pin 31 being used for the peripheral structure of the injection molded product 10 and the second angle pin 41 being used for the peripheral structure of the injection molded product 10. When the product 10 is demolded, the first taper pin 31 and the second taper pin 41 move toward the middle of the mold core 20, andwhile moving in a first direction, which in this embodiment is the Z-axis direction. When the mold 100 is released, the second inclination angle θ 2 Less than the first inclination angle theta 1 So that the moving distance of the first taper pin 31 is greater than the moving distance of the second taper pin 41, thereby preventing the first taper pin 31 from colliding with the second taper pin 41 when the mold 100 is demolded, and further preventing the mold 100 and the product 10 from being damaged. Preferably, an included angle between the first taper pin 31 and the direction in which the adjacent second taper pin 41 moves towards the middle of the die core 20 is 45 °, so that the first taper pin 31 and the second taper pin 41 can be ensured to be synchronously removed, and meanwhile, the first taper pin 31 and the adjacent second taper pin 41 at two sides are prevented from colliding in the process that the first taper pin 31 and the second taper pin 41 move towards the middle of the die core 20.
The implementation process of the embodiment of the application is as follows: the plurality of first taper pins 31 and the plurality of second taper pins 41 are alternately arranged in the mold core 20, the plurality of first taper pins 31 and the plurality of second taper pins 41 enclose a molding cavity 50, the molding cavity 50 is used for injection molding of the product 10 with an annular structure, and after the product 10 is injection molded, the first taper pins 31 and the second taper pins 41 move towards the middle of the mold core 20 and simultaneously move along a first direction.
Preferably, the first inclination angle θ 1 Is in the range of 10 DEG to 15 DEG, and a second inclination angle theta 2 The angle of the angle is in the range of 4-6 degrees. In some embodiments, the second inclination angle θ 2 Less than the first inclination angle theta 1 And the first inclination angle theta 1 And a second inclination angle theta 2 The angle range of (1) is not limited to this, so as to avoid the first taper pin 31 and the second taper pin 41 from being knocked off and collided after the other mold 100 is used to injection mold the product 10 with other structure, thereby damaging the mold 100 and the product 10.
Referring to fig. 6, the first angle pin 31 has a first protrusion 32, and the first protrusion 32 is a linear structure and is used for forming an inverted structure at the peripheral position of the product 10. The second inclined pin 41 is provided with a second protrusion 42 at a position adjacent to the first protrusion 32, and the second protrusion 42 has a curved structure for reversing the circumferential angle of the molded product 10. The surface of the first taper pin 31, which is matched with the second taper pin 41, is an inclined surface, the inclined angle of the inclined surface ranges from 70 degrees to 85 degrees, the inclined angle of the inclined surface is preferably 80 degrees, the inclined surface is matched with the inclined angle of the taper pin, so that the first taper pin 31 and the second taper pin 41 can be prevented from colliding when the die 100 is demolded, and the inclined surface is a surface of the first taper pin 31, which is contacted with the adjacent second taper pin 41. Meanwhile, when the first taper pin 31 and the second taper pin 41 move along the first direction, the first protrusion 32 of the first taper pin 31 and the second protrusion 42 of the second taper pin 41 can support the undercut structure of the product 10, so as to drive the product 10 to separate from the mold core 20. Because the first taper pin 31 and the second taper pin 41 support the product 10 when the product is demolded, the stress of the product 10 is more uniform, and the molding effect of the product 10 is better.
The first inclined pin 31 is provided with a first connecting surface 33 on the outer side, the first connecting surface 33 is inclined towards the inner direction of the first inclined pin 31, the second inclined pin 41 is provided with a second connecting surface 43 at the position corresponding to the first connecting surface 33, the second connecting surface 43 is inclined towards the outer direction of the second inclined pin 41, and the inclination angles of the first connecting surface 33 and the second connecting surface 43 are complementary. When the mold 100 is used to mold the product 10, the first taper pin 31 abuts against the second taper pin 41, and the first connecting surface 33 abuts against the second connecting surface 43, so that the second protrusion 42 abuts against the first protrusion 32, and the mold core 20, the first taper pin assembly 30, and the second taper pin assembly 40 enclose the molding cavity 50 for molding the product 10. Preferably, the angle of inclination between the first connecting surface 33 and the direction of ejection of the angle pin is in the range of 7-10 °.
Referring to FIG. 7, the first connecting surface 33 and the second connecting surface 43 form a third inclination angle θ with the axis L 3 . Third inclination angle theta 3 Greater than the second inclination angle theta 2 When the product 10 is demolded, the moving distance of the first taper pin 31 is greater than the moving distance of the second taper pin 41, so that the product 10 is firstly demolded with the first taper pin 31 in a clearance manner, and then the product 10 is demolded with the second taper pin 41 in a clearance manner, thereby preventing the first taper pin 31 from colliding with the second taper pin 41 and preventing the product 10 from being damaged and deformed. And, the first inclination angle theta 1 Greater than the third angle of inclination theta 3 When the mold 100 is closed, the first taper pin 31 is reset and then the second taper pin 41 is reset, so as to prevent the first connecting surface 33 and the second connecting surface 43 from colliding, and further prevent the first taper pin 31 and the second taper pin 41 from colliding.
Preferably, the third inclination angle θ 3 The angle of the angle is in the range of 7-10 degrees. In some embodiments, the third inclination angle θ 3 Greater than the second inclination angle theta 2 First inclination angle theta 1 Greater than the third angle of inclination theta 3 And the third inclination angle theta 3 The angle range of (1) is not limited to this, so as to avoid collision of the first and second taper pins 31 and 41 during mold opening and mold closing.
The first taper pin 31 and the second taper pin 41 both include a taper pin ejector rod 34, the taper pin ejector rod 34 is connected to an external driving member, and the external driving member drives the first taper pin 31 and the second taper pin 41 to move through the taper pin ejector rod 34, so that the first taper pin 31 and the second taper pin 41 drive the product 10 to be demolded. In the present embodiment, the first taper pin 31 and the taper pin jack 34, and the second taper pin 41 and the taper pin jack 34 are all integrally formed.
The working process of the embodiment of the application is as follows: when the product 10 with the annular structure is injection-molded, the first taper pin 31 abuts against the second taper pin 41, the mold core 20, the first taper pin 31 and the second taper pin 41 enclose a molding cavity 50 for injection-molding the product 10, the first protrusion 32 and the second protrusion 42 are used for forming a back-off structure of the product 10, when the product 10 is demolded, the first taper pin 31 and the second taper pin 41 move toward the middle of the mold core 20 and simultaneously move along the first direction and support the product 10, the first taper pin 31 preferentially moves relative to the second taper pin 41, and the first inclination angle is greater than the second inclination angle, so as to avoid collision when the first taper pin 31 and the second taper pin 41 are demolded.
The mold 100 is configured to injection mold the product 10 with the full-circumference undercut structure through the first taper pin 31 and the second taper pin 41, and after the product 10 is molded, the first taper pin 31 and the second taper pin 41 move toward the middle of the mold core 20, so that the first taper pin 31 and the second taper pin 41 are separated from the undercut structure of the product 10, and the product 10 is ejected to be separated from the mold core 20. This application just supports product 10 when the drawing of patterns through the product 10 of first taper pin 31 and the whole round back-off structure of second taper pin 41 injection moulding, avoids product 10 to take place to warp, has improved the stability of mould 100 and the yields of product.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a mould for the injection moulding product, the mould includes mould benevolence, its characterized in that, the mould still includes:
the first taper pin assembly comprises a plurality of first taper pins, the first taper pins are movably arranged on the die core, and the inclination angle of the first taper pins is a first inclination angle; and
the second taper pin assembly comprises a plurality of second taper pins, the second taper pins are movably arranged on the die core, the inclination angle of the second taper pins is a second inclination angle, and the second inclination angle is smaller than the first inclination angle;
the first angle pin and the second angle pin are arranged alternately, the mold core, the first angle pin and the second angle pin are arranged in an enclosing mode to form a molding cavity used for molding the product with an annular structure, and the first angle pin and the second angle pin move towards the middle of the mold core when being ejected out.
2. The mold of claim 1, wherein:
the first angle pin has a first projection,
the second taper pin is provided with a second protruding part, and the first protruding part and the second protruding part are used for forming an inverted buckle structure of a product.
3. The mold of claim 1, wherein: the die cavity is in a square ring shape, and an included angle between the first taper pin and the direction of the movement of the adjacent second taper pin to the middle part of the die core is 45 degrees.
4. The mold of claim 3,
the surface of the first taper pin matched with the surface of the second taper pin is an inclined surface.
5. The mold of claim 1,
the angle range of the first inclination angle is 10-17 degrees.
6. The mold of claim 1,
the angle range of the second inclination angle is 4-8 degrees.
7. The mold of claim 2,
the first taper pin is provided with a first connecting surface matched with the adjacent second taper pin, the second taper pin is provided with a second connecting surface matched with the first connecting surface, the first connecting surface inclines towards the inner direction of the first taper pin, the second connecting surface inclines towards the outer direction of the second taper pin, and the inclination angles of the first connecting surface and the second connecting surface are complementary.
8. The mold of claim 7,
the angle of inclination between the first connecting surface and the ejection direction of the angle pin ranges from 7 degrees to 10 degrees.
9. The mold of claim 2, wherein the first and second angle pin assemblies each comprise an angle pin ejector connected to the first and second angle pins, the angle pin ejector connected to an external drive.
10. The mold of claim 9,
the first angle pin and the angle pin ejector rod as well as the second angle pin and the angle pin ejector rod are all of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123127554.2U CN217073152U (en) | 2021-12-13 | 2021-12-13 | Die set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123127554.2U CN217073152U (en) | 2021-12-13 | 2021-12-13 | Die set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073152U true CN217073152U (en) | 2022-07-29 |
Family
ID=82538551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123127554.2U Active CN217073152U (en) | 2021-12-13 | 2021-12-13 | Die set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217073152U (en) |
-
2021
- 2021-12-13 CN CN202123127554.2U patent/CN217073152U/en active Active
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