Die with sliding block auxiliary positioning mechanism

Abstract

The utility model relates to a mold with a sliding block auxiliary positioning mechanism, and belongs to the technical field of mold positioning. The mold comprises a fixed mold body and a movable mold body, the fixed mold body is provided with a fixed mold core, the movable mold body is provided with a movable mold core corresponding to the fixed mold core, the fixed mold core and the movable mold core form a mold cavity, and a side forming plate which is inserted into the mold cavity in a sealed mode and used for forming a grid hole part is arranged between the fixed mold body and the movable mold body. The side forming plate is provided with a first step part attached to the movable mold core, and the movable mold core is provided with a first step groove matched with the first step part. When the automobile armrest is subjected to injection molding, the stability and the sealing performance of the side forming plate are improved.

Description

Technical Field

[0001] The present application relates to the technical field of mold positioning, and in particular to a mold with a slider auxiliary positioning mechanism. Background Art

[0002] Automobile armrest injection molding parts are an important part of automobile interior parts. They are manufactured through injection molding process and have a variety of material options and design features.

[0003] Reference Figure 1 The invention relates to an automobile armrest injection molded part that needs to be manufactured. The whole part is in the shape of a strip plate. The side wall of the automobile armrest injection molded part has a grid hole portion, and the axis of the grid hole is perpendicular to the overall length direction of the automobile armrest injection molded part.

[0004] Regarding the aforementioned related technologies, to form the mesh holes of the aforementioned automobile armrests, a side forming plate is typically included in the mold cavity. The side forming plate has a forming portion that mates with the mesh holes. However, due to the complex structure of the mesh holes, the melt faces relatively high resistance to flow, which easily generates high pressure within the mesh holes. The stability of the existing side forming plate on the mesh holes needs to be improved. Utility Model Content

[0005] In order to improve the stability of the side molding plate during the injection molding of the automobile armrest, the present application provides a mold with a slider auxiliary positioning mechanism.

[0006] The present application provides a mold with a slider auxiliary positioning mechanism adopts the following technical solution:

[0007] A mold with a slider auxiliary positioning mechanism includes a fixed mold and a movable mold, the fixed mold has a fixed mold core, the movable mold has a movable mold core corresponding to the fixed mold core, the fixed mold core and the movable mold core form a mold cavity, and a side forming plate is provided between the fixed mold and the movable mold, which is sealed and inserted into the mold cavity and used to form a grid hole portion. The side forming plate is provided with a first step portion that fits the movable mold core, and the movable mold core is provided with a first step groove that is adapted to the first step portion.

[0008] By adopting the above technical solution, the setting of the first step portion and the step groove increases the contact area between the side molding plate and the movable mold core, and expands the sealing area between the side molding plate and the movable mold core, which helps to reduce potential leakage paths and improve the overall sealing performance. At the same time, the increase in contact area helps to disperse pressure, reduce pressure concentration per unit area, and provide better support and stability during injection molding.

[0009] Optionally, the first stepped portion is further provided with a second stepped portion on a side away from the fixed mold core, and the second stepped portion has an abutting surface abutting against the side wall of the movable mold core.

[0010] By adopting the above technical solution, the provision of the second step portion and the abutting surface on the second step portion further increases the contact area between the side molding plate and the movable mold core, thereby further improving the sealing and stability of the side molding plate during injection molding.

[0011] Optionally, the top of the movable mold has a limiting sliding groove for sliding arrangement of the second step portion.

[0012] By adopting the above technical solution, the cooperation between the limiting slide groove and the second step portion plays a limiting role on the side forming plate as a whole. When demolding, the side forming plate can slide horizontally along the limiting slide groove, thereby separating from the grid hole portion of the product, facilitating the ejection and demolding of subsequent products.

[0013] Optionally, the side forming plate has a third step portion that fits closely with the fixed mold core, and the third step portion and the first step portion are arranged correspondingly.

[0014] By adopting the above technical solution, the third step portion and the first step portion are arranged correspondingly, and the cooperation between the third step portion and the fixed mold core is consistent with the cooperation between the first step portion and the movable mold core, thereby further improving the sealing area of ​​the side molding plate and the mold cavity, further enhancing the strength and rigidity of the overall structure, and improving the ability to resist external impact and vibration.

[0015] Optionally, it also includes an ejection component for the sliding of the side forming plate, the ejection component includes a fixed block fixed to the fixed mold, a guide column obliquely fixed to the fixed block, the side forming plate has a guide through hole for the guide column to pass through, when the movable mold moves away from the fixed mold, the side forming plate slides in the limiting slide groove away from the mold cavity.

[0016] By adopting the above technical solution, the arrangement of the ejection component can facilitate the horizontal discharge of the side forming plate. When the movable mold core moves away from the fixed mold core, the side forming plate gradually moves away from the grid hole portion under the action of the guide column. The side forming plate and the grid hole portion are staggered to facilitate the vertical ejection of the product under the action of the ejection mechanism.

[0017] Optionally, the fixed mold has a mounting groove for the fixing block, a bottom wall of the mounting groove is provided with a plurality of locking screw holes, and the fixing block has locking through holes corresponding to the locking screw holes.

[0018] By adopting the above technical solution, a connection method between the fixed block and the fixed mold is disclosed. The fixed block is positioned and placed through the installation groove, and then the fixed block and the fixed mold are fixed by bolts. The above assembly method is simple and the connection is stable.

[0019] Optionally, the fixing block has an abutting inclined surface abutting against the side forming plate, and the inclination angle of the abutting inclined surface is consistent with that of the guide column.

[0020] By adopting the above technical solution, the abutting bevel is attached to the side forming plate, and the inclination angle of the abutting bevel is consistent with the inclination angle of the guide column, so that while ensuring the stability of the side forming plate, the impact on the discharge of the side forming plate is reduced.

[0021] Optionally, the movable mold has a guide bevel corresponding to the guide hole and for arranging the guide column.

[0022] By adopting the above technical solution, the guide column extends to the guide bevel. When the movable mold core moves, the guide column is in a relatively static state. The side forming plate moves along the guide column while following the movable mold core and also moves away from the product, thereby automatically realizing the interlacing of the side forming plate and the grid hole portion.

[0023] Optionally, one side of the guiding inclined groove passes through the side wall of the movable mold.

[0024] By adopting the above technical solution, the guide bevel runs through the side wall of the movable mold, making it convenient for assemblers to obliquely insert the guide column into the fixed block along the opening side of the guide bevel, thereby improving the assembly efficiency of the guide column.

[0025] Optionally, at least two groups of the ejection components are included, and the two groups of the ejection components are arranged at intervals along the length direction of the product.

[0026] By adopting the above technical solution and setting up two sets of ejection components, the discharge of the side forming plate is made more stable.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. In this application, the cooperation between the first step portion and the first step groove, the third step portion and the second step groove expands the sealing area between the side molding plate and the movable mold core, which helps to reduce potential leakage paths, improve the overall sealing performance, and reduce the pressure concentration per unit area, thereby providing better support and stability during injection molding;

[0029] 2. In this application, through the setting of the ejection component, when the movable mold core moves away from the fixed mold core, the side forming plate can gradually move away from the grid hole portion under the action of the guide column, and the forming portion is separated from the grid hole portion, which facilitates the ejection of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The invention relates to an automobile armrest that needs to be injection molded in the background art.

[0031] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 3 This is a structural diagram of an embodiment of the present application without a fixed mold installed.

[0033] Figure 4 It is a cross-sectional schematic diagram of the cooperation between the forming portion and the mold cavity of the embodiment of the present application.

[0034] Figure 5 It is a cross-sectional schematic diagram of the cooperation between the guide column and the side forming plate in the embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. Fixed mold; 11. Fixed mold core; 111. Second step groove; 12. Mounting groove; 121. Locking screw hole; 2. Movable mold; 21. Movable mold core; 211. First step groove; 22. Limiting slide groove; 23. Guide inclined groove; 3. Side forming plate; 31. Forming part; 32. First step part; 33. Second step part; 331. Guide through hole; 332. Abutment surface; 34. Third step part; 4. Ejection component; 41. Fixed block; 411. Locking through hole; 412. Abutment inclined surface; 42. Guide column. DETAILED DESCRIPTION

[0036] The following is combined with Figure 2-5 This application is described in further detail.

[0037] An embodiment of the present application discloses a mold having a slider auxiliary positioning mechanism.

[0038] Reference Figure 2 and Figure 3 A mold with a slider-assisted positioning mechanism includes a fixed mold 1 and a movable mold 2. The fixed mold 1 is defined as being located at the top, and the movable mold 2 is defined as being located at the bottom. A fixed mold core 11 is fixedly mounted at the bottom of the fixed mold 1, and a movable mold core 21 corresponding to the fixed mold core 11 is fixed at the top of the movable mold 2.

[0039] Combine Figure 4 The fixed mold core 11 and the movable mold core 21 form a mold cavity for forming the automobile armrest. The mold is slidably mounted with a side molding plate 3 for molding the grid hole portion on the side wall of the mold cavity. The side molding plate 3 has a molding portion 31 that is horizontally sealed and inserted into the mold cavity.

[0040] The top of the movable mold core 21 has a first stepped groove 211 extending away from the fixed mold core 11, and the side molding plate 3 has a first stepped portion 32 adapted to the first stepped groove 211. The first stepped portion 32 and the first stepped groove 211 are sealed and in contact. The bottom of the fixed mold core 11 has a second stepped groove 111 extending away from the movable mold core 21. The second stepped groove 111 corresponds to the first stepped groove 211, and the two stepped grooves have the same length in the horizontal direction. The top of the side molding plate 3 has a third stepped portion 34 that is sealed and in contact with the second stepped groove 111.

[0041] The provision of the first stepped groove 211 and the second stepped groove 111 increases the contact area between the side molding plate 3 and the fixed and movable mold cores 11 and 21, helping to reduce potential leakage paths and improve overall sealing performance. Furthermore, the larger contact area provides better support and stability under the high melt pressure of the mesh apertures.

[0042] To further enhance the stability of the side forming plate 3, a second stepped portion 33 is integrally provided on the side of the side forming plate 3 facing the movable mold 2. The second stepped portion 33 is located on the side of the first stepped portion 32 away from the movable mold 2. The second stepped portion 33 has an abutting surface 332 that abuts the movable mold core 21. The second stepped portion 33 extends horizontally and abuts the top surface of the movable mold 2. A limiting chute 22 is provided at the top of the movable mold 2, which slides along the second stepped portion 33. The limiting chute 22 and the second stepped portion 33 have the same horizontal length. The sidewalls of the limiting chute 22 extend through the sidewalls of the movable mold 2, allowing the side forming plate 3 to slide horizontally along the limiting chute 22 to the outside of the movable mold 2.

[0043] Reference Figure 4 and Figure 5 The mold is also provided with an ejection assembly 4 for the sliding of the side forming plate 3 between the movable mold 2 and the fixed mold 1. The ejection assembly 4 includes a fixed block 41 and a guide column 42. The fixed block 41 is fixed to the top of the fixed mold 1, and the fixed block 41 corresponds to the second step portion 33. The top of the fixed mold 1 has a mounting groove 12 for positioning the fixed block 41, and the size of the mounting groove 12 is adapted to the fixed block 41. The bottom wall of the mounting groove 12 has a plurality of locking screw holes 121, and the fixed block 41 has locking through holes 411 corresponding to the locking screw holes 121 one by one, and the fixed block 41 and the fixed mold 1 are fixedly connected by bolts. In this embodiment, the bottom wall of the mounting groove 12 has four locking screw holes 121 arranged in a rectangular shape.

[0044] The guide post 42 is fixedly connected to the fixed block 41. The guide post 42 can be secured to the fixed block 41 by means of threads or plug-in connections. In this embodiment, the guide post 42 and the fixed block 41 are threaded together. From the fixed mold 1 to the fixed mold 1, the guide post 42 is arranged as a whole, tilted away from the mold cavity. The fixed block 41 also has an abutment bevel 412 on the side facing the side molding plate 3. The inclination angle of the abutment bevel 412 is consistent with the inclination angle of the guide post 42.

[0045] The second stepped portion 33 has a guide hole 331 through which the guide post 42 passes obliquely. The movable mold 2 has a guide chute 23 on the bottom wall of the limiting chute 22, corresponding to the guide hole 331 and through which the guide post 42 extends. The sidewalls of the guide chute 23 extend through the sidewalls of the movable mold 2. In this embodiment, two sets of ejection assemblies 4 are installed between the movable mold 2 and the fixed mold 1. These two sets of ejection assemblies 4 are spaced apart along the length of the movable mold 2. The second stepped portion 33 has two spaced guide holes 331.

[0046] The implementation principle of a mold with a slider auxiliary positioning mechanism in the embodiment of the present application is as follows: during the mold injection process, the molding portion 31 is sealed and inserted into the mold cavity, the first step portion 32 and the third step portion 34 of the side molding plate 3 are sealed and fitted with the first step groove 211 and the second step groove 111 respectively, and the second step portion 33 abuts against the side wall of the movable mold core 21;

[0047] After the product cools and solidifies, the movable mold 2 is first moved downward away from the fixed mold 1. The side molding plate 3 automatically moves downward under the action of gravity and moves downward at an angle under the guidance of the guide column 42, so that the molding portion 31 is separated from the grid hole portion of the product. At this time, the product is ejected from the mold cavity by the ejection mechanism.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mold with a slider auxiliary positioning mechanism, comprising a fixed mold (1) and a movable mold (2), wherein the fixed mold (1) has a fixed mold core (11), and the movable mold (2) has a movable mold core (21) corresponding to the fixed mold core (11), the fixed mold core (11) and the movable mold core (21) form a mold cavity, and a side molding plate (3) is provided between the fixed mold (1) and the movable mold (2) and is sealed and inserted into the mold cavity and used for molding a grid hole portion, characterized in that: The side forming plate (3) is provided with a first stepped portion (32) that fits the movable mold core (21), and the movable mold core (21) is provided with a first stepped groove (211) that fits the first stepped portion (32).

2. A mold with a slider auxiliary positioning mechanism according to claim 1, characterized in that: The first stepped portion (32) is further provided with a second stepped portion (33) on a side away from the fixed mold core (11), and the second stepped portion (33) has an abutting surface (332) abutting against a side wall of the movable mold core (21).

3. A mold with a slider auxiliary positioning mechanism according to claim 2, characterized in that: The top of the movable mold (2) is provided with a limiting sliding groove (22) for the sliding arrangement of the second stepped portion (33).

4. A mold with a slider auxiliary positioning mechanism according to claim 1, characterized in that: The side forming plate (3) has a third stepped portion (34) that fits in with the fixed mold core (11), and the third stepped portion (34) and the first stepped portion (32) are arranged correspondingly.

5. The mold with a slider auxiliary positioning mechanism according to claim 3, characterized in that: The side forming plate (3) further comprises an ejection assembly (4) for sliding the side forming plate (3), the ejection assembly (4) comprising a fixed block (41) fixed to the fixed mold (1), a guide column (42) obliquely fixed to the fixed block (41), the side forming plate (3) having a guide through hole (331) for the guide column (42) to pass through, and when the movable mold (2) moves away from the fixed mold (1), the side forming plate (3) slides in the limiting slide groove (22) away from the mold cavity.

6. A mold with a slider auxiliary positioning mechanism according to claim 5, characterized in that: The fixed mold (1) has a mounting groove (12) for positioning and mounting the fixed block (41), a bottom wall of the mounting groove (12) is provided with a plurality of locking screw holes (121), and the fixed block (41) has locking through holes (411) corresponding to the locking screw holes (121).

7. The mold with a slider auxiliary positioning mechanism according to claim 5, characterized in that: The fixing block (41) has an abutting inclined surface (412) abutting against the side forming plate (3), and the inclination angles of the abutting inclined surface (412) and the guide column (42) are consistent.

8. The mold with a slider auxiliary positioning mechanism according to claim 5, characterized in that: The movable mold (2) has a guide inclined groove (23) corresponding to the guide through hole (331) and for arranging the guide column (42).

9. The mold with a slider auxiliary positioning mechanism according to claim 8, characterized in that: One side of the guide inclined groove (23) passes through the side wall of the movable mold (2).

10. The mold with a slider auxiliary positioning mechanism according to claim 5, characterized in that: The mold comprises at least two groups of ejection components (4), and the two groups of ejection components (4) are arranged at intervals along the length direction of the product.

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