An injection mold for an automobile part

Abstract

The utility model relates to mould technical field, and disclose a kind of injection mould of automobile fittings, including lower mould assembly and upper mould assembly and connecting assembly, the lower mould assembly includes shell one.This injection mould of automobile fittings, by setting lower mould assembly, upper mould assembly, shell one, shell two, positioning block, slot, butt joint groove two, sealing strip two structure, so that the mould in use process, user can directly the limiting hole one and limiting hole two on plate respectively aim at limiting rod one and limiting rod two, to facilitate user to carry out injection molding operation to metal workpiece, sealing strip one and sealing strip two are connected with butt joint groove one and butt joint groove two respectively, and the tightness of connecting structure between shell one and shell two is strengthened, effectively reduce the probability of burr residue and material foot in injection molding process, more can synchronously carry out injection molding operation to multiple workpieces, to improve the sealing property of the mould and the operation efficiency of user.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an injection mold for automotive parts. Background Technology

[0002] Automotive parts are the various units that make up a car and the products that serve the vehicle. There are many types of automotive parts, and as people's living standards improve, their car consumption is increasing, leading to a growing market for automotive parts. In recent years, automotive parts manufacturers have also developed rapidly. With social development and technological progress, the application scope and quantity of injection-molded parts are expanding, and people's lives are becoming increasingly reliant on injection-molded parts, especially automotive parts. Automotive parts injection molding typically involves using molds to form the components.

[0003] Chinese Utility Model Patent Publication No. CN222807496U discloses an injection mold for automotive parts, relating to the field of automotive parts manufacturing technology. The mold includes a template A and an ejector pin. A pad is installed above the template A, and a mold A is positioned above the pad. An electric cylinder is installed at the bottom of the inner surface of the mold A, and an ejector pin is installed above the electric cylinder. A C-shaped cutter is positioned above the ejector pin. Compared with existing ordinary injection molds, this automotive parts injection mold, after the injection molded parts in mold cores A and B have cooled and solidified, removes mold core B, activates the electric cylinder, and drives the C-shaped cutter upwards via the ejector pin. At this time, the C-shaped cutter cuts along the edge of the injection molded part, completing the trimming work and further reducing subsequent production processes. Refrigerant is connected to a Z-shaped cooling pipe 10. The Z-shaped cooling pipe 10 is a continuous Z-shape, capable of cooling mold cores A4 and B5 over a large area, allowing the injection molded parts in mold cores A4 and B5 to cool and solidify rapidly.

[0004] While the aforementioned mold can accelerate the cooling and molding of injection molded parts during use, it lacks a mechanism for users to directly inject metal workpieces or sheets. This necessitates manual assembly of metal workpieces when adding plastic parts, and the separate injection molding of plastic parts increases the likelihood of burr residue and material residue, reducing the quality of the injection molded products. Furthermore, the mold cannot simultaneously perform injection molding operations on multiple products, reducing user efficiency. Therefore, we propose an injection mold for automotive parts. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an injection mold for automotive parts to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an injection mold for automotive parts, comprising a lower mold assembly, an upper mold assembly, and a connecting assembly. The lower mold assembly includes a housing, the top of which is provided with a mating groove and a slot. The inner wall of the mating groove is provided with a placement groove. The inner wall of the placement groove is fixedly fitted with a shaping block, a limiting rod 1, and a limiting rod 2. The inner wall of the mating groove is fixedly fitted with a sealing strip 1. The upper mold assembly includes a housing two that fits tightly against the inner wall of the docking groove one. The bottom of the housing two is provided with the docking groove two and the injection cavity respectively. A sealing strip two is fixedly installed at the bottom of the housing two to strengthen the sealing structure between the housing one and the housing two. The connecting assembly includes a connecting frame fixedly mounted on the outer wall of the second housing, and a fixing plate fixedly mounted on the outer wall of the first housing. A rotating rod is rotatably connected to the outer wall of the fixing plate, and a connecting plate is fixedly mounted on the outer wall of the rotating rod. Fixing holes are provided on the outer walls of both the connecting frame and the connecting plate. Connecting bolts are threaded into the inner walls of the fixing holes for fixing the second housing to the top of the first housing. A molded part is placed inside the first housing.

[0007] Through the above technical solution, by setting up a lower mold assembly, housing one, shaping block, limiting rod one, upper mold assembly, housing two, docking groove two, and sealing strip two structures, the user can directly align the limiting holes one and two on the sheet metal with the limiting rod one and limiting rod two respectively after opening the mold during use. This facilitates the user to place the workpiece in the mold for injection molding. With the injection molding process function, for small injection molded parts, it can achieve stable mass production in one go, reduce the probability of gate residue and material feet, and directly complete the injection molding on the metal parts, which is convenient for processing, handling, and packaging, thereby greatly improving the user's production efficiency for automotive parts.

[0008] Preferably, both sides of the molded part are provided with aluminum alloy plates, and the outer walls of the plates are respectively provided with limiting hole one and limiting hole two, and the diameters of limiting hole one and limiting hole two are set to 3cm and 5cm respectively.

[0009] Through the above technical solution, and by setting the plate and limiting hole one and limiting hole two structures, the user can place the two plates on both sides of the housing one according to the different diameters of limiting rod one and limiting rod two during the use of the mold, thereby facilitating the user's operation and improving the user's work efficiency.

[0010] Preferably, the diameter of the second mating groove is adapted to the diameter of the first sealing strip, and the diameter of the slot is adapted to the diameter of the second sealing strip. Both the first and second sealing strips are made of rubber.

[0011] Through the above technical solution, by setting the second docking groove, the first sealing strip, and the slot structure, the user can use the docking groove and the first sealing strip, as well as the slot and the second sealing strip, to reduce material leakage and the probability of external air entering the mold during the injection molding process, which would cause large-area bubbles in the injection molded parts. This improves the injection molding quality of the mold and thus enhances its sealing performance.

[0012] Preferably, the shape of the first docking groove is adapted to the shape of the second docking groove, and the top of the second housing is provided with a feed inlet.

[0013] Through the above technical solution, by setting the shell and the inlet structure, the material can be guaranteed to enter the mold to complete the injection molding of the sheet during the use of the mold, thereby ensuring the normal use of the mold.

[0014] Preferably, the number of connecting frames is several, and the several connecting frames are evenly distributed along the outer wall of the housing.

[0015] Through the above technical solution, by setting up several connecting frame structures, the mold can use several connecting components to firmly fix the second shell to the top of the first shell during use, thereby reducing the probability of the mold loosening or even falling off during operation, and thus improving the stability of the mold during use.

[0016] Preferably, the outer wall of the connecting frame is provided with a groove, and the diameter of the groove is adapted to the diameter of the connecting plate.

[0017] Through the above technical solution, the groove and connecting plate structure allows the user to rotate the connecting plate to fit against the inner wall of the groove during the assembly process. This makes it convenient for the user to tighten the connecting bolts to fix the second shell to the top of the first shell, thereby increasing the tightness of the connection structure between the second shell and the first shell and further improving the stability of the mold during operation.

[0018] Preferably, the number of connecting bolts is two, and both connecting bolts are symmetrically distributed along the outer wall of the connecting plate.

[0019] Through the above technical solution, by setting two connecting bolts, the fixing effect of the two connecting bolts on the connecting plate during the mold operation reduces the probability of the shell becoming loose or even shifting position after installation, thereby ensuring the overall sealing effect of the mold on the sheet metal and injection material, and further ensuring the normal use of the mold.

[0020] Compared with the prior art, this utility model provides an injection mold for automotive parts, which has the following advantages: 1. The injection mold for this automotive part, through its structure consisting of a lower mold assembly, an upper mold assembly, housing one, housing two, a positioning block, a slot, a mating groove two, and a sealing strip two, allows the user to directly align the limiting holes one and two on the sheet metal with the limiting rods one and two, respectively, facilitating injection molding of the metal workpiece. Simultaneously, the connection between sealing strips one and two and the mating grooves one and two strengthens the tightness of the connection between housing one and housing two, effectively reducing the likelihood of burr residue and material feet during injection molding. Furthermore, it allows for simultaneous injection molding of multiple workpieces, thereby improving the mold's sealing performance and the user's work efficiency.

[0021] 2. The injection mold for this automotive part, through the setting of a connecting frame, fixing holes, fixing plate, rotating rod, connecting plate, and connecting bolt structure, enables the lower mold assembly and the upper mold assembly to be fixed during use by the connecting components. This strengthens the tightness of the connection structure between housing one and housing two, thereby effectively reducing the probability of the mold loosening or even detaching during operation, and thus improving the stability of the mold during injection molding. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the lower mold of this utility model; Figure 3 This is a schematic diagram of the upper mold structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the structure of the limiting rod one and the limiting rod two of this utility model; Figure 6 This utility model Figure 5 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the product structure of this utility model.

[0023] The components are as follows: 1. Lower mold assembly; 101. Shell 1; 102. Shaping block; 103. Limiting rod 1; 104. Limiting rod 2; 105. Placement groove; 106. Docking groove 1; 107. Slot; 108. Sealing strip 1; 2. Upper mold assembly; 201. Shell 2; 202. Docking groove 2; 203. Sealing strip 2; 204. Injection cavity; 3. Connecting assembly; 301. Connecting frame; 302. Fixing hole; 303. Fixing plate; 304. Rotating rod; 305. Connecting plate; 306. Connecting bolt; 4. Molded part. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: like Figure 1-7 As shown, the present invention provides an injection mold for automotive parts, including a lower mold assembly 1, an upper mold assembly 2, and a connecting assembly 3. The lower mold assembly 1 includes a housing 101. The top of the housing 101 is provided with a docking groove 106 and a slot 107. The inner wall of the docking groove 106 is provided with a placement groove 105. The inner wall of the placement groove 105 is fixedly fitted with a shaping block 102, a limiting rod 103, and a limiting rod 104. The inner wall of the docking groove 106 is fixedly fitted with a sealing strip 108. The upper mold assembly 2 includes a housing 201 that fits tightly against the inner wall of the first docking groove 106. The bottom of the housing 201 is provided with a second docking groove 202 and an injection cavity 204. A sealing strip 203 is fixedly installed at the bottom of the housing 201 to strengthen the sealing structure between the first housing 101 and the second housing 201. The connecting assembly 3 includes a connecting frame 301 fixedly mounted on the outer wall of housing 201. The connecting assembly 3 also includes a fixing plate 303 fixedly mounted on the outer wall of housing 101. A rotating rod 304 is rotatably connected to the outer wall of the fixing plate 303. A connecting plate 305 is fixedly mounted on the outer wall of the rotating rod 304. Fixing holes 302 are provided on the outer walls of both the connecting frame 301 and the connecting plate 305. A connecting bolt 306 is threaded onto the inner wall of the fixing hole 302 for fixing housing 201 to the top of housing 101. A molded part 4 is placed inside housing 101.

[0026] The advantages are that, through the structure of the lower mold assembly 1, housing 101, shaping block 102, limiting rod 103, upper mold assembly 2, housing 201, docking groove 202, and sealing strip 203, the user can directly align the limiting holes 1 and 2 on the sheet metal with the limiting rods 103 and 204 after opening the mold, thus facilitating the user to place the workpiece in the mold for injection molding. Including the injection molding process function, for small injection molded parts, it can achieve stable mass production in one go, reducing the chance of gate residue and material feet. Injection molding is completed directly on the metal parts, facilitating processing, handling, and packaging, thereby significantly improving the user's production efficiency for automotive parts.

[0027] Specifically: Both sides of the molded part 4 are provided with aluminum alloy plates, and the outer walls of the plates are respectively provided with limiting hole one and limiting hole two, and the diameters of limiting hole one and limiting hole two are set to 3cm and 5cm respectively.

[0028] The advantage is that, through the design of the plate and the structure of limiting hole one and limiting hole two, the user can place the two plates on both sides of the housing one 101 according to the different diameters of limiting rod one 103 and limiting rod two 104 during the use of the mold, which facilitates the user's operation and improves the user's work efficiency.

[0029] Specifically: the diameter of the second mating groove 202 is compatible with the diameter of the first sealing strip 108, and the diameter of the slot 107 is compatible with the diameter of the second sealing strip 203. Both the first sealing strip 108 and the second sealing strip 203 are made of rubber.

[0030] The advantage is that, through the structure of the connecting groove 202, the sealing strip 108, and the slot 107, the user can use the connecting groove 202 to connect with the sealing strip 108 and the slot 107 to connect with the sealing strip 203 during the operation of the mold. This staggered sealing structure reduces the probability of material leakage and external air entering the mold during the injection molding process, which would cause large-area bubbles in the injection molded parts. This improves the injection molding quality of the mold and thus enhances its sealing performance.

[0031] Specifically: the shape of docking groove 106 is adapted to the shape of docking groove 202, and the top of housing 201 is provided with a feed port.

[0032] The advantage is that, through the design of the housing 201 and the inlet structure, the material can be ensured to enter the mold and complete the injection molding of the sheet during the use of the mold, thereby ensuring the normal use of the mold.

[0033] Example 2: like Figure 3-7 As shown, this is an improvement on the previous embodiment.

[0034] Specifically: there are several connecting brackets 301, and all of the connecting brackets 301 are evenly distributed along the outer wall of the shell 101.

[0035] The advantage is that, through the structure of several connecting frames 301, the mold can be used to firmly fix the second shell 201 to the top of the first shell 101 during use, thereby reducing the probability of the mold loosening or even falling off during operation, and thus improving the stability of the mold during use.

[0036] Specifically: the outer wall of the connecting bracket 301 has a groove, and the diameter of the groove is adapted to the diameter of the connecting plate 305.

[0037] The advantage is that, through the groove and connecting plate 305 structure, during the assembly process, the user can rotate the connecting plate 305 to make it fit against the inner wall of the groove, which makes it convenient for the user to tighten the connecting bolts 306 to fix the second housing 201 to the top of the first housing 101. This increases the tightness of the connection structure between the second housing 201 and the first housing 101, and further improves the stability of the mold during operation.

[0038] Specifically: There are two connecting bolts 306, and both connecting bolts 306 are symmetrically distributed along the outer wall of the connecting plate 305.

[0039] The advantage is that, through the structure of the two connecting bolts 306, the fixing effect of the two connecting bolts 306 on the connecting plate 305 during the mold operation reduces the probability of the housing 201 becoming loose or even shifting position after installation, thereby ensuring the overall sealing effect of the mold on the sheet metal and injection material, and further ensuring the normal use of the mold.

[0040] Working principle: First, during operation, the user aligns the limiting holes 1 and 2 on the sheet metal with the limiting rods 103 and 104 respectively. Then, the sheet metal is placed in the housing 101, and the housing 201 is fixed to the top of the housing 101 via the connecting assembly 3. This facilitates the user in placing the workpiece and completing the injection molding operation. During operation, the mold injects material into the injection cavity 204 through the feed port, achieving the effect of simultaneous injection molding of multiple workpieces. The structure of the connecting groove 202, sealing strip 108 and 203, and slot 107 strengthens the sealing between the two, reducing the probability of material leakage and external air entering the mold, which may cause air bubbles in the product. This improves the sealing of the mold and the user's production efficiency of the molded part 4. During operation, the housing 201 and housing 101 are firmly connected by several connecting assemblies 3, effectively reducing the probability of the mold loosening or even detaching during operation, thus improving the stability of the mold during operation.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for automotive parts, comprising a lower mold assembly (1), an upper mold assembly (2), and a connecting assembly (3), characterized in that: The lower mold assembly (1) includes a housing (101), the top of which is provided with a docking groove (106) and a slot (107), the inner wall of the docking groove (106) is provided with a placement groove (105), the inner wall of the placement groove (105) is fixedly fitted with a shaping block (102), a limiting rod (103) and a limiting rod (104), and the inner wall of the docking groove (106) is fixedly fitted with a sealing strip (108). The upper mold assembly (2) includes a housing two (201) that fits tightly against the inner wall of the docking groove one (106). The bottom of the housing two (201) is provided with docking groove two (202) and injection cavity (204). The bottom of the housing two (201) is fixedly fitted with sealing strip two (203) to strengthen the sealing structure between housing one (101) and housing two (201). The connecting assembly (3) includes a connecting frame (301) fixedly mounted on the outer wall of the second housing (201). The connecting assembly (3) also includes a fixing plate (303) fixedly mounted on the outer wall of the first housing (101). A rotating rod (304) is rotatably connected to the outer wall of the fixing plate (303). A connecting plate (305) is fixedly mounted on the outer wall of the rotating rod (304). Fixing holes (302) are provided on the outer walls of the connecting frame (301) and the connecting plate (305). A connecting bolt (306) is threaded onto the inner wall of the fixing hole (302) for fixing the second housing (201) to the top of the first housing (101). A molded part (4) is placed inside the first housing (101).

2. The injection mold for an automotive part according to claim 1, characterized in that: Both sides of the molded part (4) are provided with aluminum alloy plates. The outer walls of the plates are respectively provided with limiting hole one and limiting hole two, and the diameters of limiting hole one and limiting hole two are set to 3cm and 5cm respectively.

3. The injection mold for an automotive part according to claim 1, characterized in that: The diameter of the second docking groove (202) is adapted to the diameter of the first sealing strip (108), and the diameter of the slot (107) is adapted to the diameter of the second sealing strip (203). Both the first sealing strip (108) and the second sealing strip (203) are made of rubber.

4. The injection mold for an automotive part according to claim 1, characterized in that: The shape of the first docking groove (106) is adapted to the shape of the second docking groove (202), and the top of the second housing (201) is provided with a feed inlet.

5. The injection mold for an automotive part according to claim 1, characterized in that: The number of connecting frames (301) is several, and the several connecting frames (301) are evenly distributed along the outer wall of the shell (101).

6. The injection mold for an automotive part according to claim 1, characterized in that: The outer wall of the connecting frame (301) is provided with a groove, and the diameter of the groove is adapted to the diameter of the connecting plate (305).

7. The injection mold for an automotive part according to claim 1, characterized in that: The number of connecting bolts (306) is two, and both connecting bolts (306) are symmetrically distributed along the outer wall of the connecting plate (305).

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