Mold stripping, embedding and injecting jig for forming product with inverted buckle structure
By designing a mold-out injection fixture containing multiple rear mold inserts and positioning structures, the drag problem caused by the slide decompression of the inverted structure product during the molding process is solved, and efficient separation of the fixture and product is achieved, reducing production costs.
Patent Information
- Application Number
- CN202421859466.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the process of forming a product with an inverted structure in the prior art, forced demolding of the slider can easily lead to product drag, reduce the pass rate and increase production costs.
A mold-out injection fixture is adopted, which includes multiple rear mold inserts and positioning structures. Through magnet positioning and pole ejection, the fixture and product are simultaneously demolded, reducing production costs.
It improves the product's pass rate, reduces production costs, and realizes efficient separation of fixtures and products.
Smart Images
Figure CN223085342U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of forming fixtures for products with reverse buckles, and particularly relates to an ejection and embedded injection fixture for forming products with reverse buckles. Background Art
[0002] In the prior art, during the forming process of products with reverse buckles, forced demolding by sliders is adopted, which is very likely to cause serious dragging of the products, thus greatly reducing the product qualification rate and increasing the production cost. Summary of the Invention
[0003] According to an embodiment of the utility model, an ejection and embedded injection fixture for forming products with reverse buckles is provided, comprising:
[0004] A first rear mold insert, with first forming grooves provided at both ends of the first rear mold insert;
[0005] A second rear mold insert, with first positioning parts corresponding to the first forming grooves provided at both ends of the second rear mold insert, and first positioning grooves provided in the first positioning parts;
[0006] A third rear mold insert, with the lower end of the third rear mold insert inserted into the first positioning groove and connected to the second rear mold insert through the first positioning groove;
[0007] The first rear mold insert is detachably connected to the second rear mold insert.
[0008] Furthermore, it further comprises: a fourth rear mold insert, with the fourth rear mold insert connected to the first rear mold insert through bolts, and the first rear mold insert being detachably connected to the second rear mold insert through the fourth rear mold insert. Using the fourth rear mold insert can make the connection and disassembly between the first rear mold insert and the second rear mold insert more convenient.
[0009] Furthermore, a second positioning groove is further provided on the second rear mold insert, with the second positioning groove penetrating through the second rear mold insert; the fourth rear mold insert is connected to the second rear mold insert through the second positioning groove, and the second positioning groove plays a positioning role.
[0010] Furthermore, it further comprises: a positioning pin, with a first positioning hole on the second rear mold insert, and the first positioning hole penetrating through the second positioning groove; a second positioning hole corresponding to the first positioning hole is provided on the fourth rear mold insert; the positioning pin can be inserted into the first positioning hole and the second positioning hole to fix the fourth rear mold insert in the second positioning groove.
[0011] Furthermore, a pair of magnets are provided at the bottom of the second rear mold insert, and the magnets are used to position the second rear mold insert on the rear mold core.
[0012] Furthermore, it further comprises: a plurality of ejector rods, with the plurality of ejector rods installed on the ejector pin plate and used to eject the second rear mold insert out of the rear mold core.
[0013] According to the mold ejection and insert injection fixture for the molding of products with undercut structures according to the embodiments of the present invention, the insert injection fixture can be ejected from the mold cavity together with the product, and then the insert injection fixture is taken out from the product, with a high qualified rate, greatly reducing the production cost.
[0014] It should be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. is a schematic diagram of a perspective view according to an embodiment of the present invention;
[0016] Figure 2 FIG. is a schematic diagram of an exploded view according to an embodiment of the present invention;
[0017] Figure 3 FIG. is a top perspective view according to an embodiment of the present invention;
[0018] Figure 4 is Figure 3 a cross-sectional view taken along line A-A of
[0019] Figure 5 is Figure 3 an enlarged view of part A of
[0020] Figure 6 FIG. is a top perspective view of being installed into a mold according to an embodiment of the present invention;
[0021] Figure 7 is Figure 6 a cross-sectional view taken along line A-A of
[0022] Figure 8 is Figure 7 an enlarged view of part B of
[0023] Figure 9 FIG. is a schematic diagram of a product after injection molding according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The following will describe in detail the preferred embodiments of the present invention with reference to the drawings, and further elaborate on the present invention.
[0025] First, the mold ejection and insert injection fixture for the molding of products with undercut structures according to the embodiments of the present invention will be described in conjunction with Figures 1 to 9 which is used for the molding of products with undercut structures and has a wide range of application scenarios.
[0026] As Figures 1 to 9 shown, the mold ejection and insert injection fixture for the molding of products with undercut structures according to the embodiments of the present invention includes:
[0027] The first rear mold insert 1 has first forming grooves 11 provided at both ends thereof. The first forming grooves 11 are used for the forming of the product 8 to be produced. The shape of the first forming grooves 11 belongs to the prior art, and two products 8 can be injection-molded at one time.
[0028] The second rear mold insert 2 has first positioning portions 21 (prior art, used for the positioning of the hard rubber components 81 on the product 8) provided at both ends thereof corresponding to the first forming grooves 11. First positioning grooves 22 are provided in the first positioning portions 21.
[0029] The third rear mold insert 3 is inserted into the first positioning groove 22 at the lower end thereof and is slidably connected to the second rear mold insert 2 through the first positioning groove 22.
[0030] The first rear mold insert 1 is detachably connected to the second rear mold insert 2.
[0031] Further, it further includes: a fourth rear mold insert 4. The fourth rear mold insert 4 is connected to the first rear mold insert 1 by bolts. The first rear mold insert 1 is detachably connected to the second rear mold insert 2 through the fourth rear mold insert 4. Using the fourth rear mold insert 4 can make the connection and disassembly between the first rear mold insert 1 and the second rear mold insert 2 more convenient.
[0032] Further, a second positioning groove 23 is further provided on the second rear mold insert 2, and the second positioning groove 23 penetrates through the second rear mold insert 2. The fourth rear mold insert 4 is connected to the second rear mold insert 2 through the second positioning groove 23.
[0033] Further, it further includes: a positioning pin 5. A first positioning hole 24 is provided on the second rear mold insert 2, and the first positioning hole 24 penetrates through the second positioning groove 23. A second positioning hole 41 corresponding to the first positioning hole 24 is provided on the fourth rear mold insert 4. The positioning pin 5 can be inserted into the first positioning hole 24 and the second positioning hole 41 to fix the fourth rear mold insert 4 in the second positioning groove 23.
[0034] Further, a pair of magnets 6 are provided at the bottom of the second rear mold insert 2, and the magnets 6 are used for positioning the second rear mold insert 2 on the rear mold core 9.
[0035] Further, it further includes: a plurality of ejector rods 7. The plurality of ejector rods 7 are installed on the ejector pin plate and are used for ejecting the second rear mold insert 2 out of the rear mold core 9.
[0036] Working principle:
[0037] 1. Insert the top of the third rear mold insert 3 into the hard plastic part 81 (which is part of the entire injection molded product 8 and is wrapped together during injection molding). Insert the lower end of the third rear mold insert 3 into the first positioning groove 22. Place the hard plastic part 81 on the first positioning portion 21. Fix the first rear mold insert 1 and the fourth rear mold insert 4 with bolts. Insert the fourth rear mold insert 4 into the second positioning groove 23. Insert the pin into the first positioning hole 24 and the second positioning block to fix the fourth rear mold insert 4 in the second positioning groove 23. Place the entire set of fixtures into the rear mold core 9. The injection molding machine closes the mold and injects the plastic.
[0038] 2. The injection molding machine opens the mold. The ejector rod 7 ejects the second rear mold insert 2 together with the first rear mold insert 1, the third rear mold insert 3, the fourth rear mold insert 4, and the molded product 8 out of the rear mold core 9. Pull out the positioning pin 5 and pull out the fourth rear mold insert 4 from the second positioning groove 23. At this time, the third rear mold insert 3 also disengages from the first positioning groove 22. Then take out the third rear mold insert 3 and take out the rubber product 8 from the first rear mold insert 1.
[0039] As above, with reference to Figures 1 to 9 The ejection and embedded injection fixture for forming products with undercut structures according to the embodiments of the present invention is described. The embedded injection fixture can be disengaged from the mold cavity together with the product and then taken out from the product. The qualified rate is high, and the production cost is greatly reduced.
[0040] It should be noted that in this specification, the terms "including", "comprising", or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device including the element.
[0041] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.
Claims
1. An ejection and insert injection fixture for the molding of products with reverse buckle structures, characterized in that, Comprising: A first rear mold insert, with first forming grooves provided at both ends of the first rear mold insert; A second rear mold insert, with first positioning parts corresponding to the first forming grooves provided at both ends of the second rear mold insert, and first positioning grooves provided in the first positioning parts; A third rear mold insert, with the lower end of the third rear mold insert inserted into the first positioning groove and connected to the second rear mold insert through the first positioning groove; The first rear mold insert is detachably connected to the second rear mold insert.
2. The demolding and in-mold injection fixture for the molding of products with reverse buckling structures according to claim 1, characterized in that, Further comprising: a fourth rear mold insert, the fourth rear mold insert is connected to the first rear mold insert by bolts, and the first rear mold insert is detachably connected to the second rear mold insert through the fourth rear mold insert.
3. The demolding and insert injection jig for the molding of products with reverse buckle structures according to claim 2, wherein A second positioning groove is further provided on the second rear mold insert, and the second positioning groove penetrates through the second rear mold insert; the fourth rear mold insert is connected to the second rear mold insert through the second positioning groove.
4. The demolding and insert injection fixture for the molding of products with reverse buckling structures according to claim 3, characterized in that, Further comprising: a positioning pin, a first positioning hole is provided on the second rear mold insert, and the first positioning hole penetrates through the second positioning groove; a second positioning hole corresponding to the first positioning hole is provided on the fourth rear mold insert, and the positioning pin can be inserted into the first positioning hole and the second positioning hole.
5. The mold-embedded injection fixture for molding products with reverse buckling structures as described in claim 1, wherein A pair of magnets are provided at the bottom of the second rear mold insert, and the magnets are used to position the second rear mold insert on the rear mold core.
6. The demolding and insert injection fixture for the molding of products with reverse buckling structures as described in claim 5, wherein, Further comprising: a plurality of ejector rods, the plurality of ejector rods are installed on the ejector pin plate and are used to eject the second rear mold insert out of the rear mold core.