Injection mold with multi-hole-site structure core-pulling structure

Abstract

The utility model relates to the technical field of molds, and particularly discloses an injection mold with a multi-hole-site structure core-pulling structure. Wherein the front mold assembly comprises a panel, a front mold plate and a front mold core; the rear mold assembly comprises a rear mold core, and the front mold core and the rear mold core are combined to form a forming cavity; the first core pulling assembly is used for forming a cavity and a fine hole structure in the cavity and comprises an inner slide sliding block, a first forming structure arranged on one side of the inner slide sliding block, a shovel base structure connected with the inner slide sliding block in a sliding mode and first guide structures arranged on the two sides of the inner slide sliding block. The first forming structure comprises a slim hole forming assembly arranged in the inner slide sliding block and used for forming a slim hole structure, and the slim hole forming assembly comprises a plurality of long and thin inserts arranged in the inner slide sliding block and a broken part insert-out structure. The mold is good in forming effect, the core pulling structure is simple and easy to clean, the maintenance cost is low, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold with a multi-hole structure and a core-pulling structure. Background Art

[0002] Existing injection molds often face challenges such as undercuts and core pulling when processing products with complex structures. Figure 1 These problems are more prominent in the automobile controller product 4 shown. The product is relatively large and has a one-mold-one-cavity structure. There are multiple structures with inconsistent directions on the product, which makes the core pulling directions crisscross. There is a concave structure 403 and multiple handle buckle structures 404 in the vertical direction, and multiple cavities 401 in the horizontal direction. The inside of each cavity is covered with tiny pore structures 402, and the molding parts used to form the hole structure are easily broken due to the penetration setting. The damaged structure is difficult to clean. The structures are close to each other, there are many holes, and the core pulling directions are inconsistent. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an injection mold with a multi-hole core-pulling structure, which has good molding effect, a simple core-pulling structure that is easy to clean, and has low maintenance costs, thereby improving production efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An injection mold with a multi-hole core-pulling structure, comprising:

[0006] A front mold assembly includes a panel, a front mold plate disposed below the panel, and a front mold core disposed on one side of the front mold plate;

[0007] A rear mold assembly includes a rear mold core, wherein the front mold core and the rear mold core are combined to form a molding cavity;

[0008] The first core-pulling assembly is used for forming a cavity and a fine hole structure in the cavity. The first core-pulling assembly includes an inner position slider, a first molding structure arranged on one side of the inner position slider, a shovel base structure slidingly connected with the inner position slider, and a first guide structure arranged on both sides of the inner position slider. The first molding structure includes a fine hole molding assembly arranged in the inner position slider for molding a fine hole structure. The fine hole molding assembly includes a plurality of slender inserts and a broken piece inserting structure arranged in the inner position slider.

[0009] According to some embodiments of the present invention, the inner position slider has a plurality of fine hole grooves matching the slender inserts, the fine hole grooves pass through the inner position slider, and the broken piece insertion structure includes a support block structure arranged on the fine hole grooves for positioning the slender inserts.

[0010] According to some embodiments of the present invention, a support block through groove matching the support block structure is provided in the inner position slider, the support block through groove passes through the side of the inner position slider and is connected with each of the fine hole grooves, the support block structure is placed in the support block through groove, and the slender insert is arranged in the fine hole groove and abuts against the support block structure.

[0011] According to some embodiments of the present invention, the first molding structure includes a plurality of cavity molding parts for molding cavities, which are arranged on the inner position slider, and each of the cavity molding parts is provided with a plurality of the fine hole grooves.

[0012] According to some embodiments of the present invention, a limiting portion for limiting the position of the inner position slider is provided on the upper portion of the inner position slider, and the limiting portion is arranged above the front mold core.

[0013] According to some embodiments of the present invention, the first guide structure is arranged on the front template, the bottom side of the first guide structure and one side of the front template form a guide groove, and the limiting portion is provided with a guide protrusion matching the guide groove.

[0014] According to some embodiments of the present invention, the shovel base structure includes a fixing portion arranged at the top and fixed to the panel, the fixing portion includes a fixing block arranged inside the panel, the shovel base structure is provided with a T-shaped groove on one side of the first molding structure, and the inner position slider is provided with a T-shaped protrusion matching the T-shaped groove on one side.

[0015] According to some embodiments of the present invention, the second core pulling assembly is also arranged on the rear mold assembly, and the second core pulling assembly includes a core pulling base, a second molding structure arranged on the core pulling base, a second guide structure arranged on both sides of the core pulling base, and a power structure connected to the core pulling base for pulling the core pulling base.

[0016] According to some embodiments of the present invention, the second molding structure includes an arc-shaped molding portion for molding a concave structure and an inner buckle molding portion connected to the inner position slider for molding a handle buckle structure, the inner buckle molding portion includes an extra-long inner core insert, and an arc-shaped groove matching the arc-shaped molding portion is provided on one side of the inner position slider.

[0017] According to some embodiments of the present invention, a sliding seat slidingly connected to the core pulling base is provided between the power structure and the core pulling base, the sliding seat is fixed on one side of the front template, and the second guide structure extends from one side of the front template into the sliding seat.

[0018] The utility model has at least the following beneficial effects:

[0019] The first core-pulling assembly solves the forming and core-pulling problems of the cavity and fine-pore structure through the mutual cooperation of the inner position slider, the shovel base structure and the first city-type structure, avoids the risk of mold collision during resetting, and improves the service life of the mold. By setting the broken insert structure, it is convenient to clean the slender inserts that are easy to break, avoids overall disassembly and maintenance, reduces downtime in production, and improves production speed and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the automobile controller product of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the mold of the present utility model;

[0022] Figure 3 For an embodiment of the present utility model Figure 2 A magnified view of the area marked in the middle;

[0023] Figure 4 A top view of the mold of the present invention;

[0024] Figure 5 It is along Figure 4 Cross-sectional view of line AA;

[0025] Figure 6 It is along Figure 4 Cross-sectional view of line BB;

[0026] Figure 7 This is a structural diagram of a first core pulling assembly and a second core pulling assembly according to an embodiment of the present invention;

[0027] Figure 8 This is a structural diagram of a first core pulling assembly according to an embodiment of the present invention;

[0028] Figure 9 This is a structural diagram of an inner position slider according to an embodiment of the present utility model;

[0029] Figure 10 This is a structural diagram of a second core-pulling assembly according to an embodiment of the present invention;

[0030] Figure 11 This is a schematic structural diagram of a slender insert and a support block structure according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following description of the present invention, with reference to the accompanying drawings, is provided to facilitate a more comprehensive understanding of the various embodiments of the present invention as defined in the claims and their equivalents. The description includes various specific details to assist understanding, but these details should be construed as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0032] In the description of the present invention, descriptions of directions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0033] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0034] See also Figure 1 The automobile controller product 4 has multiple structures with inconsistent directions, so the core pulling directions are crisscrossed. In the first direction, there are multiple cavities 401, and the inner side of each cavity 401 is covered with tiny pore structures 402. In the second direction, there are concave structures 403 and multiple handle buckle structures 404.

[0035] In order to form the above structure, the embodiment of the present invention provides an injection mold with a multi-hole core-pulling structure, such as Figure 1-10 Shown, including:

[0036] The front mold assembly 101 includes a panel 102, a front mold plate 103 disposed below the panel 102, and a front mold core 104 disposed on one side of the front mold plate 103;

[0037] The rear mold assembly 105 includes a rear mold core 106, and the front mold core 104 and the rear mold core 106 are combined to form a molding cavity;

[0038] The first core-pulling assembly 2 is used for forming a cavity 401 and a fine hole structure 402 in the cavity 401. The first core-pulling assembly 2 includes an inner position slider 201, a first molding structure 202 arranged on one side of the inner position slider 201, a shovel base structure 203 slidingly connected with the inner position slider 201, and a first guide structure 204 arranged on both sides of the inner position slider 201. The first molding structure 202 includes a fine hole molding assembly 205 arranged in the inner position slider 201 for molding the fine hole structure 402. The fine hole molding assembly 205 includes a plurality of slender inserts 206 and a broken piece inserting structure 207 arranged in the inner position slider 201.

[0039] The first core-pulling component 2 of the present invention is arranged between the cavity 401 and the handle buckle structure 404. The first molding structure 202 on the inner position slider 201 is used to mold the cavity 401, and a fine hole molding component 205 for molding the fine hole structure 402 is provided in the cavity 401, specifically a plurality of slender inserts 206. Since the slender inserts 206 are inserted into the interior of the inner position slider 201 and partially extend to penetrate the rear mold core, the slender inserts 206 are relatively thin and are easily broken during work. For this reason, a broken piece inserting structure 207 is provided to facilitate the cleaning of the broken slender inserts 206, avoid overall disassembly and maintenance, and reduce production speed. In practice, the shovel base structure 203 is fixed on the panel 102, and the shovel base structure 203 and the inner position slider 201 are fixed to the panel 102. The core pulling can be coordinated with the guide groove, inclined guide column, shift block and other structures. As the mold is opened, the shovel base structure 203 fixed on the front mold assembly 101 drives the inner position slider 201 to pull the core laterally under the guidance of the first guide structure 204. The first guide structure 204 can be a guide groove structure set on the upper side or the lower side. When the mold is opened, the front mold assembly 101 pulls the shovel base structure 203 and drives the inner position slider 201 to pull the core laterally toward the side away from the first molding structure 202. While moving, the path and distance of movement are restricted by the first guide structure 204, so that the cavity 401 and the pore structure 402 complete the core pulling. The mold has good molding effect, simple core pulling structure, easy cleaning, low maintenance cost, and improved production efficiency.

[0040] Further, if Figure 5 、 8 As shown in Figures 9 and 11, the inner position slider 201 has a plurality of fine hole grooves 208 that match the slender insert 206. The fine hole grooves 208 pass through the inner position slider 201, and the broken piece inserting structure 207 includes a support block structure 209 arranged on the fine hole grooves 208 for positioning the slender insert 206.

[0041] The fine hole groove 208 running through the inner position slider 201 facilitates the cleaning of the broken slender insert 206. The support block structure 209 is used to position and limit the slender insert 206 to prevent it from moving on the through fine hole groove 208 and affecting the molding. The support block structure 209 can be set on the side of the inner position slider 201 or inside the inner position slider 201. The direction of its setting is perpendicular to the direction of the slender insert 206. The slender insert 206 and the support block structure 209 work together to ensure the precise molding of the fine hole structure 402.

[0042] Further, if Figure 5 、 8 As shown in Figures 9 and 11, a support block through groove 210 matching the support block structure 209 is provided in the inner position slider 201. The support block through groove 210 passes through the side of the inner position slider 201 and is connected with each fine hole groove 208. The support block structure 209 is placed in the support block through groove 210, and the slender insert 206 is set in the fine hole groove 208 and abuts against the support block structure 209.

[0043] The support block structure 209 is placed in the support block groove 210 of the inner row slider 201, and the slender insert 206 is inserted into the fine hole groove 208 on one side of the first molding part and abutted against the middle support block structure 209, which effectively shortens the length of the slender insert 206 in the fine hole groove 208, reduces production costs, and improves the stability of the slender insert 206. At the same time, it is precisely positioned, and the penetrating support block groove 210 facilitates the removal of the support block structure 209, so as to facilitate the cleaning of broken slender inserts 206.

[0044] In some embodiments, as Figure 3 、 5 As shown, the first molding structure 202 includes a plurality of cavity molding parts 211 disposed on the inner slide block 201 for molding the cavity 401 , and each cavity molding part 211 is provided with a plurality of fine pores 208 .

[0045] It is convenient for the integrated molding and alignment of the cavity 401 and the pore structure 402, and also convenient for subsequent integrated core pulling, thereby ensuring the accuracy of molding.

[0046] In some embodiments, as Figure 5 、 8 As shown, a limiting portion 212 for limiting the position of the inner position slider 201 is provided on the upper portion of the inner position slider 201 , and the limiting portion 212 is arranged above the front mold core 104 .

[0047] The limiting portion 212 on the upper part of the inner position slider 201 is set above the front mold core 104, which can provide precise positioning to ensure the accurate position of the inner position slider 201 during the closing and opening process of the mold. It can also ensure the stability of the slider during movement and prevent displacement caused by external force or improper operation, thereby ensuring molding accuracy.

[0048] Further, if Figure 6-8 As shown, the first guide structure 204 is provided on the front template 103 , the bottom side of the first guide structure 204 and one side of the front template 103 form a guide groove 213 , and the limiting portion 212 is provided with a guide protrusion 214 matching the guide groove 213 .

[0049] The guide groove 213 formed on the bottom side of the first guide structure 204 and one side of the front template 103, combined with the guide protrusion 214 on the limiting portion 212, can ensure the precise guidance of the inner position slider 201 during the core pulling process, reduce the error during the movement of the slider, and at the same time, the guide groove 213 can also limit the withdrawal distance of the inner position slider 201, thereby improving the consistency and quality of the molded parts.

[0050] In some embodiments, as Figure 6 、 8 As shown, the shovel base structure 203 includes a fixing portion 215 arranged at the top and fixed to the panel 102, the fixing portion 215 includes a fixing block 216 arranged in the panel 102, the shovel base structure 203 is provided with a T-shaped groove 217 on one side of the first molding structure 202, and a T-shaped protrusion 218 matching the T-shaped groove 217 is provided on one side of the inner position slider 201.

[0051] The fixing part 215 on the top of the shovel base structure 203 is fixed to the panel 102, and the fixing block 216 is arranged in the panel 102, which enhances the strength of the shovel base structure 203 and limits the displacement of the shovel base structure 203, thereby increasing the stability of the entire core pulling assembly. The T-shaped groove on one side of the shovel base structure 203 matches the T-shaped protrusion of the inner position slider 201. The structure is simple and easy to process, which ensures the stability of the core pulling and improves the convenience of operation.

[0052] In some embodiments, as Figure 6 、 7 As shown in FIG10 , an injection mold having a core-pulling structure with a multi-hole structure further includes a second core-pulling assembly 3 arranged on the rear mold assembly 105. The second core-pulling assembly 3 includes a core-pulling base 301, a second molding structure 302 arranged on the core-pulling base 301, a second guide structure 303 arranged on both sides of the core-pulling base 301, and a power structure 304 connected to the core-pulling base 301 for pulling the core-pulling base 301.

[0053] Specifically, the second molding structure 302 of the second core-pulling component 3 is inserted into the inner position slider 201. When demolding, the second core-pulling component 3 is pulled first, and then the mold is opened to pull the first core-pulling component 2. The core-pulling sequence is separated, which is convenient for core pulling without interference and does not hinder the molding of the handle buckle structure 404; when resetting, the mold is closed first and then the second core-pulling component 3 is inserted into the core. The sequential mold closing ensures that there is no interference between the two when the mold is closed; and the second guide structure 303 is actually arranged at the bottom of both sides of the core-pulling base 301, forming a guiding groove between it and the front template 103, and a cooperating sliding protrusion is provided on the core-pulling base 301; due to the inconsistent mold opening sequence, the second core-pulling component 3 does not use the mold opening force to pull the core, and the core is pulled by connecting the power structure 304 with the core-pulling base 301.

[0054] Further, if Figure 8 、 10 As shown, the second molding structure 302 includes an arc-shaped molding portion 305 for molding a concave structure 403 and an inner buckle molding portion 306 connected to the inner position slider 201 for molding a handle buckle structure 404. The inner buckle molding portion 306 includes an extra-long inner core insert 307, and an arc-shaped groove 308 matching the arc-shaped molding portion 305 is provided on one side of the inner position slider 201.

[0055] The arc-shaped forming portion 305 and the inward-facing forming portion 306 simultaneously meet the molding requirements of the handle buckle structure 404 and the concave structure 403, improving the precision and quality of the molded part. Because the core pulling directions of the two are consistent, the core pulling process simplifies the mold structure. The provision of the extra-long inner core insert 307 allows for convenient replacement of only the extra-long inner core insert 307 if damaged, reducing maintenance costs and downtime.

[0056] Further, if Figure 6 、 7 As shown in Figure 10, a slider seat 309 slidingly connected to the core-pulling base 301 is provided between the power structure 304 and the core-pulling base 301. The slider seat 309 is fixed to one side of the front template 103, and the second guide structure 303 extends from one side of the front template 103 to the inside of the slider seat 309.

[0057] The slider seat 309 is fixed on one side of the front template 103, providing a stable support point. The sliding connection design between the slider seat 309 and the core pulling base 301 allows the core pulling base 301 to move within a certain range, ensuring that the second core pulling assembly 3 does not separate from the mold itself during core pulling, providing the necessary flexibility.

[0058] The terms and words used in the above description and claims are not limited to their literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined in the appended claims and their equivalents.

Claims

1. An injection mold with a multi-hole core-pulling structure, characterized in that: include: A front mold assembly (101) comprises a panel (102), a front mold plate (103) disposed below the panel (102), and a front mold core (104) disposed on one side of the front mold plate (103); A rear mold assembly (105) includes a rear mold core (106), wherein the front mold core (104) and the rear mold core (106) are combined to form a molding cavity; A first core-pulling assembly (2) is used for forming a cavity and a fine hole structure in the cavity. The first core-pulling assembly (2) includes an inner position slider (201), a first forming structure (202) arranged on one side of the inner position slider (201), a shovel base structure (203) slidingly connected to the inner position slider (201), and a first guide structure (204) arranged on both sides of the inner position slider (201). The first forming structure (202) includes a fine hole forming assembly (205) arranged in the inner position slider (201) for forming the fine hole structure. The fine hole forming assembly (205) includes a plurality of slender inserts (206) and a broken piece inserting structure (207) arranged in the inner position slider (201).

2. The injection mold with a multi-hole core-pulling structure according to claim 1, characterized in that: The inner position slider (201) has a plurality of fine hole grooves (208) matching the slender insert (206), the fine hole grooves (208) passing through the inner position slider (201), and the broken piece inserting structure (207) includes a support block structure (209) arranged on the fine hole grooves (208) for positioning the slender insert (206).

3. The injection mold with a multi-hole core-pulling structure according to claim 2, characterized in that: The inner position slider (201) is provided with a support block through groove (210) matching the support block structure (209), the support block through groove (210) passes through the side of the inner position slider (201) and is connected with each of the fine hole grooves (208), the support block structure (209) is placed in the support block through groove (210), and the slender insert (206) is arranged in the fine hole groove (208) and abuts against the support block structure (209).

4. The injection mold with a multi-hole core-pulling structure according to claim 2, characterized in that: The first molding structure (202) comprises a plurality of cavity molding parts (211) for molding cavities, which are arranged on the inner position slider (201), and each of the cavity molding parts (211) is provided with a plurality of fine pore grooves (208).

5. The injection mold with a multi-hole core-pulling structure according to claim 1, characterized in that: The upper portion of the inner position slider (201) is provided with a limiting portion (212) for limiting the position of the inner position slider (201), and the limiting portion (212) is arranged above the front mold core (104).

6. The injection mold with a multi-hole core-pulling structure according to claim 5, characterized in that: The first guide structure (204) is arranged on the front template (103), the bottom side of the first guide structure (204) and one side of the front template (103) form a guide groove (213), and the limiting portion (212) is provided with a guide protrusion (214) matching the guide groove (213).

7. The injection mold with a multi-hole core-pulling structure according to claim 1, characterized in that: The shovel base structure (203) includes a fixing portion (215) arranged at the top and fixed to the panel (102), the fixing portion (215) includes a fixing block (216) arranged in the panel (102), the shovel base structure (203) is provided with a T-shaped groove (217) on one side of the first forming structure (202), and the inner position slider (201) is provided with a T-shaped protrusion (218) matching the T-shaped groove (217) on one side.

8. The injection mold with a multi-hole core-pulling structure according to any one of claims 1 to 7, characterized in that: Also includes: A second core-pulling assembly (3) is arranged on the rear mold assembly (105), and the second core-pulling assembly (3) includes a core-pulling base (301), a second molding structure (302) arranged on the core-pulling base (301), a second guide structure (303) arranged on both sides of the core-pulling base (301), and a power structure (304) connected to the core-pulling base (301) for pulling the core-pulling base (301).

9. The injection mold with a multi-hole core-pulling structure according to claim 8, characterized in that: The second forming structure (302) comprises an arc-shaped forming portion (305) for forming a concave structure and an inner buckle forming portion (306) connected to the inner position slider (201) for forming a handle buckle structure, wherein the inner buckle forming portion (306) comprises an extra-long inner core insert (307), and an arc-shaped groove (308) matching the arc-shaped forming portion (305) is provided on one side of the inner position slider (201).

10. The injection mold with a multi-hole core-pulling structure according to claim 8, characterized in that: A sliding seat (309) is provided between the power structure (304) and the core-pulling base (301), and is slidably connected to the core-pulling base (301). The sliding seat (309) is fixed to one side of the front template (103), and the second guide structure (303) extends from one side of the front template (103) into the sliding seat (309).

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