Insert positioning mold structure
By using a first positioning insert to fix the non-sealed part of the insert in the mold, and a second positioning insert to move and position the sealed part of the insert, combined with the design of limiting groove and gap, the problem of excessive fluctuation in the position of the insert is solved, and the stability and cost saving of the plastic coating process are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN KAIZHONG PRECISION TECH CO LTD
- Filing Date
- 2022-07-05
- Publication Date
- 2026-05-29
AI Technical Summary
In traditional mold design, the positional accuracy of the non-sealed end of the insert is affected by the fluctuation of the incoming material size, resulting in excessive positional accuracy fluctuations. This affects the interoperability of the insert product with other parts, and the plastic coating process has poor stability.
The first positioning insert in the master mold is used to fix the end of the non-sealed part of the insert, and the second positioning insert is used to move the sealed part. Combined with the limit groove and gap design, the stable positioning of the insert in the mold is ensured, and the error caused by the fluctuation of the incoming material size is eliminated.
It improves the stability of the insert coating process, avoids rework, saves costs, and ensures that the position of the non-sealed end of the insert meets the requirements, which is conducive to the interoperability with other parts.
Smart Images
Figure CN115008680B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of injection molding technology, and in particular to an insert positioning mold structure. Background Technology
[0002] In mold design for plastic coating of inserts requiring exposed components, the traditional method is to design notches for placement and positioning based on the theoretical shape and dimensions of the insert. However, since the actual molded dimensions of the insert have errors, to avoid stress caused by two or more point positioning, the unsealed ends of the insert are designed with gaps. After plastic coating, the positional accuracy of the exposed unsealed ends of the insert is easily affected by fluctuations in the incoming material dimensions, leading to deviations from acceptable tolerances. However, the insert products subsequently require the unsealed ends to mate with other parts, and the sealed parts of the insert are not dimensionally controlled points. Because the positional accuracy of the exposed unsealed ends of the plastic-coated insert is affected by fluctuations in the incoming material dimensions, rework is required after plastic coating to correct the positional accuracy of the unsealed ends, resulting in poor stability of the plastic coating process. Summary of the Invention
[0003] The purpose of this application is to provide an insert positioning mold structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this application provides the following technical solution:
[0005] An insert positioning mold structure, comprising:
[0006] The master mold has a first positioning insert and a second positioning insert. The first positioning insert is used to fix and position the non-sealed end of the insert, and the second positioning insert is used to move and position the sealed part of the insert.
[0007] A male mold is located above the female mold, and the male mold and the female mold form a product glue cavity, which is provided corresponding to the sealing part.
[0008] Furthermore, the master mold is provided with a first mounting cavity, and the first positioning insert is fixedly installed in the first mounting cavity.
[0009] Furthermore, the upper end of the first positioning insert is provided with a first limiting groove, and the end of the non-sealed part extends into the first limiting groove, thereby restricting the movement of the end of the non-sealed part.
[0010] Furthermore, the master mold is provided with a second mounting cavity, which is located on the side of the product adhesive cavity close to the first mounting cavity, and a first gap is provided between the inner wall of the second mounting cavity and the outer wall of the second positioning insert.
[0011] Furthermore, the second mounting cavity is provided with a second limiting groove that extends from left to right, and the female mold is provided with a third limiting groove that connects the second limiting groove and the first limiting groove.
[0012] Furthermore, the front and rear sidewalls of the third limiting groove are respectively provided with a second gap or fit with the front and rear sidewalls of the insert.
[0013] Furthermore, the front and rear sidewalls of the second limiting groove are respectively provided with a third gap or fit with the front and rear sidewalls of the insert.
[0014] Furthermore, the lower surface of the male mold is bonded to the upper surface of the non-sealing part.
[0015] Furthermore, the cross-section of the first positioning insert and / or the second positioning insert is rectangular.
[0016] Furthermore, the upper surface of the first positioning insert and / or the second positioning insert is flush with the upper surface of the master mold.
[0017] In summary, the technical effects and advantages of this invention are as follows:
[0018] 1. In this invention, the first positioning insert can fix the end of the non-sealed part of the insert, and the second positioning insert can move the sealed part of the insert. When the insert is installed into the female mold and the male mold, the second positioning insert can automatically move to the matching position according to the deformation of the insert. This can eliminate the error caused by the fluctuation of the insert material size, ensure the position accuracy of the end of the non-sealed part of the insert, avoid rework and correction after plastic coating, save costs, reduce the requirements for the insert material, and improve the stability of the plastic coating process.
[0019] 2. In this invention, by setting a first mounting cavity to restrict the movement of the first positioning insert, the position of the first positioning insert on the master mold can be fixed. The upper end of the first positioning insert is provided with a first limiting groove. The first limiting groove can restrict the movement of the end of the non-sealed part of the insert, which can ensure the position accuracy of the end of the non-sealed part after plastic coating, which is conducive to subsequent interoperability with other parts.
[0020] 3. In this invention, by providing a second positioning insert that can move within the first gap in the second mounting cavity, interference with the first positioning insert caused by insert deformation can be avoided; by providing a second limiting groove and a third limiting groove, the insert can be placed. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of the insert positioning mold structure in one embodiment of the present invention;
[0023] Figure 2 This is a top view of the female mold in one embodiment of the present invention;
[0024] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;
[0025] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;
[0026] Figure 5 yes Figure 2 A magnified view of a section at point C.
[0027] In the diagram: 1. Female mold; 2. Male mold; 3. First positioning insert; 4. Second positioning insert; 5. Insert; 6. Product glue cavity; 51. Non-sealing part; 52. Sealing part; 11. First mounting cavity; 12. Second mounting cavity; 13. Third limiting groove; 121. First gap; 131. Second gap; 31. First limiting groove; 41. Second limiting groove; 411. Third gap. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0032] To address the problems in the existing technology, this embodiment provides an insert positioning mold structure, such as... Figure 1-5 As shown, the device includes a female mold 1 and a male mold 2. The female mold 1 contains a first positioning insert 3 and a second positioning insert 4. The first positioning insert 3 is used to fix and position the end of the non-sealed portion 51 of the insert 5, and the second positioning insert 4 is used to movably position the sealed portion 52 of the insert 5. The male mold 2 is located above the female mold 1, and the male mold 2 and the female mold 1 form a product adhesive cavity 6, which corresponds to the sealed portion 52. The adhesive filling in the product adhesive cavity 6 can cover the sealed portion 52 of the insert 5, forming a plastic-coated exposed product of the insert 5.
[0033] In this embodiment, the first positioning insert 3 can fix the end of the non-sealed part 51 of the insert 5, and the second positioning insert 4 can move the sealed part 52 of the insert 5. When the insert 5 is installed into the female mold 1 and the male mold 2, the second positioning insert 4 can automatically move to the matching position according to the deformation of the insert 5. This can eliminate the error caused by the fluctuation of the material size of the insert 5, ensure the position accuracy of the end of the non-sealed part 51 of the insert 5, avoid rework and correction after plastic coating, save costs, reduce the requirements for the material of the insert 5, and improve the stability of the plastic coating process.
[0034] Furthermore, the female mold 1 is provided with a first mounting cavity 11, and the first positioning insert 3 is fixedly installed in the first mounting cavity 11. Optionally, the first positioning insert 3 can be fixedly installed to the first mounting cavity 11 by screws or pins; or the first positioning insert 3 can be snapped and fixed to the first mounting cavity 11; or the inner sidewall of the first mounting cavity 11 can be fitted to the outer sidewall of the first positioning insert 3. The first mounting cavity 11 can be a through hole extending vertically, or the first mounting cavity 11 can also be a blind hole opened from the upper surface of the female mold 1. In this embodiment, by setting the first mounting cavity 11 and the first positioning insert 3 to be fixedly installed, the position of the first positioning insert 3 on the female mold 1 can be guaranteed to be fixed.
[0035] Furthermore, the upper end of the first positioning insert 3 is provided with a first limiting groove 31, and the end of the non-sealed portion 51 extends into the first limiting groove 31, which restricts the movement of the end of the non-sealed portion 51. The shape of the first limiting groove 31 matches the shape of the non-sealed portion 51 of the insert 5. For example, if the shape of the non-sealed portion 51 is L-shaped, then the shape of the first limiting groove 31 is L-shaped, and the inner sidewall and bottom surface of the first limiting groove 31 are respectively fitted to the outer sidewall and bottom surface of the end of the non-sealed portion 51. This application does not limit the specific shape of the first limiting groove 31. In this embodiment, the upper end of the first positioning insert 3 is provided with a first limiting groove 31, which can restrict the movement of the end of the non-sealed portion 51 of the insert 5, and can ensure the positional accuracy of the end of the non-sealed portion 51 after plastic coating, which is beneficial for subsequent interlocking with other parts.
[0036] Furthermore, the female mold 1 is provided with a second mounting cavity 12, which is located on the side of the product mounting cavity 6 near the first mounting cavity 11. A first gap 121 is provided between the inner wall of the second mounting cavity 12 and the outer wall of the second positioning insert 4. In this embodiment, by providing the first gap 121, the second positioning insert 4 can move within the first gap 121 in the second mounting cavity 12, which can avoid interference with the first positioning insert 3 caused by the deformation of the insert 5. The size of the first gap 121 depends on the dimensional accuracy of the insert 5 material.
[0037] Optionally, the female mold 1 is provided with a second mounting cavity 12. Both the second positioning insert 4 and the second mounting cavity 12 have rectangular cross-sections. The second mounting cavity 12 is located on the side of the product's adhesive cavity 6 near the first mounting cavity 11. A first gap 121 is provided between the front and rear sidewalls of the second mounting cavity 12 and the front and rear sidewalls of the second positioning insert 4, respectively. Optionally, the distance between the front and rear sidewalls of the second mounting cavity 12 and the front and rear sidewalls of the second positioning insert 4 is 0.1-1.0 mm. The second mounting cavity 12 can be a through hole extending vertically, or it can be a blind hole opened from the upper surface of the female mold 1. Furthermore, the cross-sections of the second positioning insert 4 and the second mounting cavity 12 can also be circular, oblong, or elliptical, etc., and the first gap 121 is provided between the outer sidewall of the second positioning insert 4 and the inner sidewall of the second mounting cavity 12.
[0038] Furthermore, the second mounting cavity 12 is provided with a second limiting groove 41 that extends from left to right, and the female mold 1 is provided with a third limiting groove 13 that connects the second limiting groove 41 and the first limiting groove 31. By setting the second limiting groove 41 and the third limiting groove 13, it is convenient to place the insert 5.
[0039] Optionally, the front and rear sidewalls of the third limiting groove 13 are provided with a second gap 131 or are in contact with the front and rear sidewalls of the insert 5, respectively. The size of the second gap 131 depends on the dimensional accuracy of the insert 5 material. For example, the distance between the front and rear sidewalls of the third limiting groove 13 and the front and rear sidewalls of the insert 5 is 0.1-1.0 mm. If the first gap 121 allows for the deformation of the insert 5, the front and rear sidewalls of the third limiting groove 13 can be in contact with the front and rear sidewalls of the insert 5, respectively. If the first gap 121 is insufficient to allow for the deformation of the insert 5, a second gap 131 can be provided between the front and rear sidewalls of the third limiting groove 13 and the front and rear sidewalls of the insert 5, respectively.
[0040] Optionally, a third gap 411 or abutment is provided between the front and rear sidewalls of the second limiting groove 41 and the front and rear sidewalls of the insert 5, respectively. Whether or not to provide a third gap 411 can be designed according to specific circumstances.
[0041] Furthermore, the lower surface of the male mold 2 is fitted to the upper surface of the non-sealed part 51. This facilitates the male mold 2's cooperation with the female mold 1, the first positioning insert 3, and the second positioning insert 4 to position and fix the insert 5 in the vertical direction.
[0042] Optionally, the cross-section of the first positioning insert 3 is rectangular. Alternatively, the cross-section of the first positioning insert 3 can also be other shapes, such as circular, oblong, trapezoidal, or triangular.
[0043] Furthermore, the upper surfaces of the first positioning insert 3 and / or the second positioning insert 4 are flush with the upper surface of the female mold 1. The upper surfaces of the first positioning insert 3 and / or the second positioning insert 4, along with the upper surface of the female mold 1, are in contact with the lower surface of the male mold 2.
[0044] In this embodiment, the insert 5 is positioned by a combination of the first positioning insert 3 and the second positioning insert 4. The mold and the sealing part 52 of the insert 5 are improved from the traditional fixed positioning to movable positioning by the second positioning insert 4. The end of the non-sealed part 51 of the insert 5 is improved from the traditional avoidance design to fixed positioning by the first positioning insert 3, eliminating the material error of the insert 5 and ensuring the position accuracy of the end of the non-sealed part 51 of the insert 5. This structure can be used for molds of the same type.
[0045] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An insert positioning mold structure, characterized in that, include: The master mold (1) is provided with a first positioning insert (3) and a second positioning insert (4). The first positioning insert (3) is used to fix and position the end of the non-sealing part (51) of the insert (5), and the second positioning insert (4) is used to move and position the sealing part (52) of the insert (5). A male mold (2) is located above the female mold (1). The male mold (2) and the female mold (1) form a product glue cavity (6). The product glue cavity (6) is provided corresponding to the sealing part (52). The master mold (1) is provided with a first mounting cavity (11), and the first positioning insert (3) is fixedly installed in the first mounting cavity (11); The master mold (1) is provided with a second mounting cavity (12), and a first gap (121) is provided between the inner sidewall of the second mounting cavity (12) and the outer sidewall of the second positioning insert (4).
2. The insert positioning mold structure according to claim 1, characterized in that, The first positioning insert (3) has a first limiting groove (31) at its upper end. The end of the non-sealed part (51) extends into the first limiting groove (31), and the first limiting groove (31) restricts the movement of the end of the non-sealed part (51).
3. The insert positioning mold structure according to claim 2, characterized in that, The second mounting cavity (12) is located on the side of the product adhesive cavity (6) near the first mounting cavity (11).
4. The insert positioning mold structure according to claim 3, characterized in that, The second mounting cavity (12) is provided with a second limiting groove (41) that extends through the left and right sides, and the female mold (1) is provided with a third limiting groove (13) that connects the second limiting groove (41) and the first limiting groove (31).
5. The insert positioning mold structure according to claim 4, characterized in that, The front and rear sidewalls of the third limiting groove (13) are respectively provided with a second gap (131) or are attached to the front and rear sidewalls of the insert (5).
6. The insert positioning mold structure according to claim 4 or 5, characterized in that, The front and rear sidewalls of the second limiting groove (41) are respectively provided with a third gap (411) or are attached to the front and rear sidewalls of the insert (5).
7. The insert positioning mold structure according to any one of claims 1-5, characterized in that, The lower surface of the male mold (2) is attached to the upper surface of the non-sealing part (51).
8. An insert positioning mold structure according to any one of claims 1-5, characterized in that, The first positioning insert (3) and / or the second positioning insert (4) have a rectangular cross-section.
9. An insert positioning mold structure according to any one of claims 1-5, characterized in that, The upper surface of the first positioning insert (3) and / or the second positioning insert (4) is flush with the upper surface of the master mold (1).