Injection mold for a transmission element of a motor vehicle door lock system

Abstract

The utility model relates to an injection mold for automobile door lock system transmission part, including by upper and lower setting in proper order upper die mechanism, lower die mechanism, support, upper die mechanism includes upper die panel, upper die base, upper die core, sprue bush, upper die panel is bolted in the top of upper die base, upper die core is inlaid in the bottom of upper die base, sprue bush is passed through and is arranged in the center of upper die panel, upper die base, upper die core, lower die mechanism includes lower die base, lower die core, lower die core is inlaid in the top center of lower die base, and the both sides of lower die core are slidably provided with lateral core, and the lateral core moving drive lateral core pulling mechanism is equipped between upper die base and lower die base, and the butt joint surface of upper die core and lower die core is equipped with two pairs of cavity that match with the left and right door lock system transmission part respectively, and the locking mechanism is equipped between upper die base and lower die base, and the support is fixedly connected at the bottom of lower die base, and the ejection mechanism is arranged in the support. The utility model improves the pouring flow passage system, and the demoulding efficiency is high, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to an injection mold for a transmission component of an automotive door lock system. Background Technology

[0002] With the continuous development of the automotive industry, the production quality requirements for transmission components in automotive door lock systems, as crucial parts for ensuring vehicle safety, are becoming increasingly stringent. Traditional injection molds present numerous problems in the production of transmission components for automotive door lock systems. For example, imperfect gating systems can easily lead to defects such as weld lines, affecting the product's appearance and performance. Furthermore, the side core-pulling mechanism is not convenient to operate, resulting in low demolding efficiency and limiting the improvement of production efficiency. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing an injection mold for transmission components of an automotive door lock system.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an injection mold for a transmission component of an automotive door lock system, comprising an upper mold mechanism, a lower mold mechanism, and a support arranged sequentially from top to bottom. The upper mold mechanism includes an upper mold panel, an upper mold base, an upper mold core, and a sprue sleeve. The upper mold panel is bolted to the top of the upper mold base, and the upper mold core is embedded in the bottom of the upper mold base. The sprue sleeve is disposed through the center of the upper mold panel, the upper mold base, and the upper mold core. The lower mold mechanism includes a lower mold base and a lower mold core. The lower mold core is embedded in the top center of the lower mold base. Lateral mold cores are slidably provided on both sides of the lower mold core, and a lateral core-pulling mechanism for driving the lateral mold cores to move is provided between the upper mold base and the lower mold base. The mating surfaces of the upper mold core and the lower mold core are provided with two pairs of cavities respectively matched with the transmission components of the left and right door lock systems. A mold-locking mechanism is provided between the upper mold base and the lower mold base. The support is fixed to the bottom of the lower mold base, and an ejection mechanism is provided inside the support.

[0005] Specifically, mold closing guide posts are embedded and fixed at the four corners of the top of the lower mold base, and mold closing guide sleeves matching the mold closing guide posts are embedded and fixed inside the upper mold base, with the mold closing guide sleeves fitted on the outside of the mold closing guide posts.

[0006] Specifically, the mold locking mechanism includes a locking block and locking bolts. The upper mold base and the lower mold base are provided with threaded holes on the same side. A pair of locking bolts are inserted through the upper and lower sides of the locking block and screwed into the threaded holes.

[0007] Specifically, the upper mold core is embedded with an upper core pillar assembly that corresponds to the cavity, and the upper core pillar assembly is matched with the holes on the top of the left and right door lock system transmission components. The upper mold core is also equipped with an upper mold cooling pipe assembly, and the inlet and outlet ends of the upper mold cooling pipe assembly protrude from the upper mold base.

[0008] Specifically, the bottom center of the lower mold core is provided with a sprue that connects to the four cavities. The bottom outlet of the sprue sleeve extends into the center of the sprue intersection. The center of the sprue intersection is provided with a cold material storage area extending to both sides. The lower mold core is lined with a lower mold cooling pipe assembly. The inlet and outlet ends of the lower mold cooling pipe assembly pass through the lower mold base.

[0009] Specifically, the lateral core-pulling mechanism includes grooves on both sides of the top of the lower mold base corresponding to the lower mold core, a lower mold slider slidably disposed in the grooves, and an upper mold slider fixed to the bottom of the upper mold base. An inclined guide post is inserted inside the upper mold slider, and an insertion hole corresponding to the inclined guide post is provided on the top of the lower mold slider. A wedge-shaped inclined surface is provided on the contact surface between the lower mold slider and the upper mold slider on the side away from the lower mold core, and the upper mold slider and the lower mold slider slide along the wedge-shaped inclined surface. A first spring connected to the lower mold core is embedded in the side of the lower mold slider facing the lower mold core. A pair of grooves are opened on the side of the lower mold slider facing the lower mold core, and the lateral mold core is bolted in the grooves.

[0010] Specifically, the support includes a support base plate, a support side plate, and support heads. The support side plate is fixed to the top of the support base plate on both sides. The top of the support base plate is provided with several positioning posts that pass through the support side plate. The bottom of the lower mold base is provided with positioning holes corresponding to the positioning posts. The positioning posts are inserted into the positioning holes. Several support heads are fixed to the top of the support base plate to support the lower mold base.

[0011] Specifically, the ejection mechanism includes an ejection base plate, an ejection panel, and ejector pins. The ejection panel is fixed to the top of the ejection base plate. Several ejector pins corresponding to the cavity are fixed to the top of the ejection base plate, and the tops of the ejector pins pass through the ejection panel and are flush with the bottom of the cavity. Several ejection guide posts are provided on the top of the support base plate. Ejection guide sleeves are nested inside the ejection base plate and the ejection panel. The ejection guide sleeves are fitted on the outside of the ejection guide posts. The ejection base plate and the ejection panel pass through the support head. Fixed posts inserted into the lower mold base are provided at the four corners of the top of the ejection panel. Second springs are fitted on the fixed posts. The second springs are located between the lower mold base and the ejection panel. Top posts that pass through the support base plate are provided at the bottom of the ejection base plate.

[0012] Specifically, the support base plate and the lower mold core are provided with lower core pillar assemblies corresponding to the cavity, and the lower core pillar assemblies are respectively matched with the holes at the bottom of the transmission components of the left and right door lock systems.

[0013] The beneficial effects of this utility model are as follows: This utility model improves the casting runner system by providing a cold material storage area extending to both sides at the center of the runner intersection, preventing cold material from entering the cavity and avoiding affecting the product molding quality; the side mold core cooperates with the cavity to form the final product casting cavity, and the setting of the side mold core pulling mechanism makes it easy for the side mold core to follow the mold closing and opening of the upper mold mechanism to enter or leave the cavity without additional operation, resulting in high demolding efficiency and improved production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 for Figure 2 Sectional view of AA;

[0017] Figure 4 This is a schematic diagram of one side of the present invention;

[0018] Figure 5 for Figure 4 BB section view;

[0019] Figure 6 This is a schematic diagram showing the position of the guide sleeve of this utility model;

[0020] Figure 7 for Figure 6 CC section view;

[0021] Figure 8 This is a schematic diagram showing the position of the upper mold core of this utility model;

[0022] Figure 9 This is a schematic diagram showing the position of the lower mold core of this utility model;

[0023] Figure 10 for Figure 9 Enlarged view of point D;

[0024] Figure 11 This is a schematic diagram of the cavity location of this utility model;

[0025] Figure 12 This is a schematic diagram of the ejection mechanism of this utility model;

[0026] In the picture:

[0027] 1-Upper mold mechanism; 101-Upper mold panel; 102-Upper mold base; 1021-Mold closing guide sleeve; 103-Upper mold core; 1031-Upper core pillar assembly; 1032-Upper mold cooling pipe assembly; 104-Gating sleeve;

[0028] 2-Lower mold mechanism; 201-Lower mold base; 2011-Mold closing guide pillar; 202-Lower mold core; 2021-Gateway; 2022-Lower mold cooling pipe assembly; 2023-Lower core pillar assembly; 2024-Cold material storage area; 203-Side mold core;

[0029] 3-Support; 301-Support base plate; 302-Support side plate; 303-Support head; 304-Positioning column;

[0030] 4-Cavity;

[0031] 5-Mold locking mechanism; 501-Locking block; 502-Locking bolt;

[0032] 6-Side core pulling mechanism; 601-Slide groove; 602-Lower mold slider; 603-Upper mold slider; 604-Angled guide post; 605-Insertion hole; 606-First spring; 607-Groove;

[0033] 7-Ejection mechanism; 701-Ejection base plate; 702-Ejection panel; 703-Ejector pin; 704-Ejection guide post; 705-Fixing post; 706-Second spring; 707-Top post;

[0034] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0036] like Figures 1-12 As shown, an injection mold for a transmission component of an automotive door lock system includes an upper mold mechanism 1, a lower mold mechanism 2, and a support 3 arranged sequentially from top to bottom. The upper mold mechanism 1 includes an upper mold panel 101, an upper mold base 102, an upper mold core 103, and a sprue sleeve 104. The upper mold panel 101 is bolted to the top of the upper mold base 102, the upper mold core 103 is embedded in the bottom of the upper mold base 102, and the sprue sleeve 104 is disposed through the center of the upper mold panel 101, the upper mold base 102, and the upper mold core 103. The lower mold mechanism 2 includes a lower mold base 201 and a lower mold core 202, with the lower mold core 202 embedded in the lower mold base 201. At the top center, mold closing guide pillars 2011 are embedded and fixed at the four corners of the top of the lower mold base 201. Mold closing guide sleeves 1021, matching the mold closing guide pillars 2011, are embedded and fixed inside the upper mold base 102. The mold closing guide sleeves 1021 are fitted over the outside of the mold closing guide pillars 2011. A mold locking mechanism 5 is provided between the upper mold base 102 and the lower mold base 201. The mold locking mechanism 5 includes locking blocks 501 and locking bolts 502. Threaded holes are provided on the same side of the upper mold base 102 and the lower mold base 201. A pair of locking bolts 502 pass through the upper and lower sides of the locking block 501 and are screwed into the threaded holes. After the upper mold mechanism 1 and the lower mold mechanism 2 are closed, they are locked by the mold locking mechanism 5.

[0037] The mating surfaces of the upper mold core 103 and the lower mold core 202 are provided with two pairs of cavities 4 that are respectively matched with the transmission components of the left and right door lock systems. An upper core pillar assembly 1031 corresponding to the cavity 4 is embedded and fixed inside the upper mold core 103, and the upper core pillar assembly 1031 is respectively matched with the holes at the top of the transmission components of the left and right door lock systems. An upper mold cooling pipe assembly 1032 is laid inside the upper mold core 103, with its inlet and outlet ends extending out of the upper mold base 102. The lower mold core 202 has a sprue 2021 at its top center that communicates with the four cavities 4, and the bottom outlet of the sprue sleeve 104 extends into the sprue 202. At the intersection center of the sprue 2021, there is a cold material storage area 2024 extending to both sides. This area stores the material that first comes into contact with the mold and cools down during the casting process, allowing subsequent hot material to directly enter the cavity 4 and avoid affecting the final product molding quality. The lower mold core 202 is equipped with a lower mold cooling pipe assembly 2022. The inlet and outlet ends of the lower mold cooling pipe assembly 2022 extend out of the lower mold base 201. The support base plate 301 and the lower mold core 202 are equipped with lower core pillar assemblies 2023 corresponding to the cavities 4, and these lower core pillar assemblies 2023 are matched with the holes at the bottom of the left and right door lock system transmission components. The upper mold cooling pipe assembly 1032 and the lower mold cooling pipe assembly 2022 are arranged according to the positions of the cavities 4, ensuring that the distance between the upper mold cooling pipe assembly 1032 and the lower mold cooling pipe assembly 2022 and each corresponding cavity 4 is uniform, facilitating simultaneous cooling of the product.

[0038] Lateral mold cores 203 are slidably provided on both sides of the lower mold core 202, and a lateral core-pulling mechanism 6 for driving the lateral mold cores 203 to move is provided between the upper mold base 102 and the lower mold base 201. The lateral core-pulling mechanism 6 includes a sliding groove 601 on both sides of the top of the lower mold base 201 corresponding to the lower mold core 202, a lower mold slider 602 slidably provided in the sliding groove 601, and an upper mold slider 603 fixed to the bottom of the upper mold base 102. An inclined guide post 604 is inserted inside the upper mold slider 603, and the top of the lower mold slider 602 is... The upper mold slider 603 has a wedge-shaped inclined surface on the contact surface between the lower mold slider 602 (facing away from the lower mold core 202) and the upper mold slider 603. The upper mold slider 603 and the lower mold slider 602 slide along the wedge-shaped inclined surface. A first spring 606 connected to the lower mold core 202 is embedded in the lower mold slider 603 facing the lower mold core 202. A pair of grooves 607 are opened on the lower mold slider 603 facing the lower mold core 202, and the lateral mold core 203 is bolted into the grooves 607. The lateral mold core pulling mechanism 6 facilitates the lateral mold core 203 to enter or leave the cavity 4 with the mold closing and opening of the upper mold mechanism 1 without additional operation, resulting in high demolding efficiency and improved production efficiency.

[0039] Support 3 is fixedly connected to the bottom of lower mold base 201. Support 3 includes support base plate 301, support side plate 302, and support head 303. Support side plate 302 is fixedly connected to the top two sides of support base plate 301. Support base plate 301 has several positioning posts 304 passing through support side plate 302 at the top. Lower mold base 201 has positioning holes corresponding to positioning posts 304 at the bottom. Positioning posts 304 are inserted into positioning holes. Several support heads 303 are fixedly connected to the top of support base plate 301 to support lower mold base 201.

[0040] The support 3 is equipped with an ejection mechanism 7, which includes an ejection base plate 701, an ejection panel 702, and ejector pins 703. The ejection panel 702 is fixed to the top of the ejection base plate 701. Several ejector pins 703 corresponding to the cavity 4 are fixed to the top of the ejection base plate 701, and the tops of the ejector pins 703 pass through the ejection panel 702 and are flush with the bottom of the cavity 4. Several ejection guide posts 704 are provided on the top of the support base plate 301. The ejection base plate 701 and the ejection panel 702 are equipped with ejection guide posts 704. The part is nested with an ejector guide sleeve, which is sleeved on the outside of the ejector guide post 704. The ejector base plate 701 and the ejector panel 702 pass through the support head 303. The top four corners of the ejector panel 702 are provided with fixing posts 705 that are inserted into the lower mold base 201. The fixing posts 705 are sleeved with a second spring 706. The second spring 706 is located between the lower mold base 201 and the ejector panel 702. The bottom of the ejector base plate 701 is provided with a top post 707 that passes through the support base plate 301.

[0041] In operation, the upper mold mechanism 1 and the lower mold mechanism 2 are closed. At this time, the side core-pulling mechanism 6 pushes the side mold core 203 into the cavity 4. Then, the injection machine injects into the sprue bushing 104. The molten material enters each cavity 4 through the sprue 2021. During this process, the molten material that initially flows into the mold and cools down enters the cold material storage area 2024, while the subsequent hot molten material directly enters the cavity 4. After casting is completed, cooling water circulates inside the upper mold cooling pipe assembly 1032 and the lower mold cooling pipe assembly 2023 to cool the product in the cavity 4. After cooling is completed, the upper mold mechanism 1 opens. At this time, under the action of the first spring 606, the side mold core 203 disengages from the cavity 4, and the ejection mechanism 7 ejects the product. This invention improves the casting runner system, prevents cold material from entering the cavity 4, and avoids affecting the product molding quality. The side mold core 203 can easily follow the mold closing and opening of the upper mold mechanism 1 to enter or leave the cavity 4 without additional operation, resulting in high demolding efficiency and improved production efficiency.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An injection mold for a transmission component of an automotive door lock system, comprising an upper mold mechanism (1), a lower mold mechanism (2), and a support (3) arranged sequentially from top to bottom, characterized in that, The upper mold mechanism (1) includes an upper mold panel (101), an upper mold base (102), an upper mold core (103), and a sprue bushing (104). The upper mold panel (101) is bolted to the top of the upper mold base (102), the upper mold core (103) is embedded in the bottom of the upper mold base (102), and the sprue bushing (104) is disposed through the center of the upper mold panel (101), the upper mold base (102), and the upper mold core (103). The lower mold mechanism (2) includes a lower mold base (201) and a lower mold core (202). The lower mold core (202) is embedded in the top of the lower mold base (201). The lower mold core (202) has lateral mold cores (203) sliding on both sides, and a lateral core pulling mechanism (6) for driving the lateral mold cores (203) to move is provided between the upper mold base (102) and the lower mold base (201). The mating surfaces of the upper mold core (103) and the lower mold core (202) are provided with two pairs of cavities (4) that are respectively matched with the transmission components of the left and right door lock systems. A mold locking mechanism (5) is provided between the upper mold base (102) and the lower mold base (201). The support (3) is fixed to the bottom of the lower mold base (201), and an ejection mechanism (7) is provided inside the support (3).

2. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The lower mold base (201) has mold closing guide pillars (2011) embedded and fixed at the four corners of the top. The upper mold base (102) has a mold closing guide sleeve (1021) that matches the mold closing guide pillars (2011) embedded and fixed inside. The mold closing guide sleeve (1021) is sleeved on the outside of the mold closing guide pillars (2011).

3. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The mold locking mechanism (5) includes a locking block (501) and locking bolts (502). The upper mold base (102) and the lower mold base (201) are provided with threaded holes on the same side. A pair of locking bolts (502) are inserted through the upper and lower sides of the locking block (501) and screwed into the threaded holes.

4. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The upper mold core (103) is embedded and fixed with an upper core pillar assembly (1031) corresponding to the cavity (4), and the upper core pillar assembly (1031) is matched with the hole position on the top of the transmission component of the left and right door lock system respectively. The upper mold core (103) is laid with an upper mold cooling pipe assembly (1032), and the inlet end and outlet end of the upper mold cooling pipe assembly (1032) pass through the upper mold base (102).

5. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The bottom center of the lower mold core (202) is provided with a sprue (2021) that communicates with the four cavities (4). The bottom outlet of the sprue sleeve (104) extends into the intersection center of the sprue (2021). The intersection center of the sprue (2021) is provided with a cold material storage area (2024) extending to both sides. The lower mold core (202) is provided with a lower mold cooling pipe assembly (2022). The inlet and outlet ends of the lower mold cooling pipe assembly (2022) pass through the lower mold base (201).

6. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The lateral core-pulling mechanism (6) includes a slide groove (601) on both sides of the top of the lower mold base (201) corresponding to the lower mold core (202), a lower mold slider (602) slidably disposed in the slide groove (601), and an upper mold slider (603) fixed to the bottom of the upper mold base (102). An inclined guide post (604) is inserted inside the upper mold slider (603). The top of the lower mold slider (602) is provided with a hole (605) corresponding to the inclined guide post (604). The lower mold slider (602) is oriented away from the lower mold core (202). A wedge-shaped inclined surface is provided on one side of the mold core (202) and the contact surface of the upper mold slider (603), and the upper mold slider (603) and the lower mold slider (602) slide along the wedge-shaped inclined surface. A first spring (606) connected to the lower mold core (202) is embedded in the side of the lower mold slider (603) facing the lower mold core (202). A pair of grooves (607) are opened on the side of the lower mold slider (603) facing the lower mold core (202), and the lateral mold core (203) is bolted in the grooves (607).

7. The injection mold for a transmission component of an automotive door lock system according to claim 1, characterized in that, The support (3) includes a support base plate (301), a support side plate (302), and a support head (303). The support side plate (302) is fixed to the top two sides of the support base plate (301). The top of the support base plate (301) is provided with a number of positioning posts (304) that pass through the support side plate (302). The bottom of the lower mold base (201) is provided with positioning holes corresponding to the positioning posts (304). The positioning posts (304) are inserted into the positioning holes. A number of support heads (303) are fixed to the top of the support base plate (301) for supporting the lower mold base (201).

8. The injection mold for a transmission component of an automotive door lock system according to claim 7, characterized in that, The ejection mechanism (7) includes an ejection base plate (701), an ejection panel (702), and ejector pins (703). The ejection panel (702) is fixed to the top of the ejection base plate (701). Several ejector pins (703) corresponding to the cavity (4) are fixed to the top of the ejection base plate (701), and the top of the ejector pins (703) passes through the ejection panel (702) and is flush with the bottom of the cavity (4). Several ejection guide posts (704) are provided on the top of the support base plate (301). The ejection base plate (701) and the ejection panel (702) are nested inside the ejection base plate (701) and the ejection panel (702). The ejector guide sleeve is fitted on the outside of the ejector guide post (704). The ejector base plate (701) and the ejector panel (702) pass through the support head (303). The four corners of the top of the ejector panel (702) are provided with fixing posts (705) inserted into the lower mold base (201). The fixing posts (705) are fitted with a second spring (706). The second spring (706) is located between the lower mold base (201) and the ejector panel (702). The bottom of the ejector base plate (701) is provided with a top post (707) that passes through the support base plate (301).

9. The injection mold for a transmission component of an automotive door lock system according to claim 7, characterized in that, The support base plate (301) and the lower mold core (202) are provided with a lower core column assembly (2023) corresponding to the cavity (4), and the lower core column assembly (2023) is matched with the hole position at the bottom of the transmission component of the left and right door lock system respectively.

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