Automobile engine timing cover injection mold

Abstract

The utility model discloses an injection mold for a timing cover of an automobile engine, relates to the technical field of injection molds, solves the problems of low injection molding efficiency and poor cooling effect of an existing device, and adopts the following scheme that a lower mold base is fixedly mounted on the top surface of a base, nine groups of mold core cavities which are opposite in position are formed in the top surface of the lower mold base; according to the automobile engine timing gauge cover injection mold, through the arrangement of the lower mold base, the upper mold base and the injection molding opening, nine sets of mold core cavities and male mold cores are arranged on the lower mold base and the upper mold base correspondingly, so that multiple sets of timing gauge covers can be produced through injection molding at the same time through the injection molding opening, the injection molding efficiency is high, and practicability is high; and meanwhile, through the arrangement of an input pipe, a backflow pipe, a water pump and a condenser, condensate water in the base can be conveyed into the lower die base through the water pump and then flows back into the base through the backflow pipe, so that circulation of the condensate water can be guaranteed, waste of water resources is reduced, the water in the base can be kept at low temperature through the condenser, and therefore the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for a timing cover of an automobile engine. Background Art

[0002] The timing belt is used to connect the upper and lower parts. The upper part is connected to the timing wheel of the engine cylinder head, and the lower part is connected to the crankshaft wheel. The timing cover of the automobile engine is a cover installed at the position of the timing belt, which mainly plays the role of dust prevention and protection. The timing cover is generally made by injection molding, but the injection molding efficiency of existing molds is low.

[0003] After searching, the application with patent announcement number CN213530710U discloses a plastic injection mold for an engine cover, including a motor, a connecting rod, a movable connecting plate, a rotating shaft, a movable mold, a fixed mold, a positioning hole, a buffer pillar, a base, a cavity, a positioning rod, and a feed port. The feed port is provided with a transverse channel, and the transverse channel is connected to the feed port. A gap channel is provided at the bottom of the transverse channel, and the gap channel is a straight-line structure. The straight-line structure of the gap channel can achieve smooth aluminum water stamping, effectively prevent aluminum water oxidation and the generation of pores, thereby ensuring the quality of the injection mold, ensuring the qualified rate of the product, and extending the life of the mold.

[0004] However, due to the setting of the movable mold and the fixed mold, the equipment can only inject one group of finished products at a time, and cannot inject multiple groups of finished products at the same time. The injection molding efficiency is low, it is not convenient to carry out multi-batch production, and the practicality is low. At the same time, since the injection molded products are cooled by the flow of water, the cooling speed is increased, but a constant supply of water is required, which increases the production cost and wastes water resources. The normal water source temperature is high and the cooling effect is low.

[0005] Therefore, we proposed an injection mold for automobile engine timing cover. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides an injection mold for a timing cover of an automobile engine, which solves the problems of low injection efficiency and poor cooling effect of the prior device.

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: an injection mold for a timing cover of an automobile engine, comprising a base, and four groups of support columns are fixedly installed on the bottom surface of the base;

[0008] A lower mold base is fixedly installed on the top surface of the base, nine groups of mold core cavities with opposite positions are opened on the top surface of the lower mold base, a bottom plate is slidably connected in the mold core cavity, four groups of electric telescopic rods with opposite positions are fixedly installed on the top surface of the base, a top seat is fixedly installed on the top of the electric telescopic rod, an upper mold base is fixedly installed on the bottom surface of the top seat, nine groups of male mold cores with opposite positions and matching specifications are fixedly installed on the bottom surface of the upper mold base, a through hole is opened on the bottom surface of the upper mold base, and nine groups of injection ports connected with the through holes are fixedly installed on the top surface of the top seat;

[0009] The wall of the lower mold base is hollow, and condensed water is provided inside the base. A U-shaped input pipe is fixedly installed on the right side of the base, and the output end of the U-shaped input pipe is connected with the interior of the lower mold base. A reflux pipe connected with the base is fixedly installed on the left side of the lower mold base, a water pump is fixedly installed on the outer wall of the input pipe, and a condenser is fixedly installed on the bottom surface of the base.

[0010] Preferably, nine groups of heat flow pipes connected to the injection port are fixedly installed inside the top seat, and a heating component is provided on the outer wall of the heat flow pipe, so that the raw materials for injection can be heated to prevent the raw materials from condensing and solidifying during the injection molding process, thereby improving the efficiency of injection molding.

[0011] Preferably, the bottom surface of the upper mold base is provided with an exhaust hole A located outside the male mold core, and the exhaust hole A is opposite to the position of the core cavity, so that the air in the core cavity can be discharged to improve the injection molding effect.

[0012] Preferably, the top surface of the top seat is provided with an exhaust hole B connected with the exhaust hole A, so that the air in the raw material can be discharged easily during the injection molding process, thereby improving the quality of the injection molded product.

[0013] Preferably, a cylinder is mounted on the bottom surface of the base plate, and an output end of the cylinder is connected to the bottom surface of the base plate, so that the base plate can be lifted upward, thereby ejecting the injection-molded product for easy removal.

[0014] Preferably, the outer wall of the core cavity is coated with a heat-conducting layer, which can improve the efficiency of cooling and molding of the product after injection molding.

[0015] 1. The automobile engine timing gauge cover injection mold has nine sets of core cavities and punch cores respectively arranged on the lower mold base and the upper mold base through the arrangement of the lower mold base, the upper mold base and the injection port, so that multiple sets of timing gauge covers can be injection molded and produced at the same time through the injection port, and the injection molding efficiency is high and the practicability is high;

[0016] 2. At the same time, through the setting of the input pipe, return pipe, water pump and condenser, the water pump can transport the condensed water in the base to the lower mold base, and then flow back to the base through the return pipe. This can ensure the circulation of condensed water and reduce the waste of water resources. The condenser can keep the water in the base at a low temperature, thereby improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the top seat of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the upper die seat of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the lower die base of the utility model.

[0021] In the figure: 1. base; 2. support column; 3. electric telescopic rod; 4. top seat; 5. lower mold base; 6. mold core cavity; 7. bottom plate; 8. upper mold base; 9. punch core; 10. heat flow pipe; 11. injection port; 12. through hole; 13. exhaust hole A; 14. exhaust hole B; 15. condenser; 16. input pipe; 17. return pipe; 18. water pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Figure 1-4 As shown: a lower mold base 5 is fixedly installed on the top surface of the base 1, and nine groups of relatively positioned core cavities 6 are opened on the top surface of the lower mold base 5, and a bottom plate 7 is slidably connected in the core cavity 6. Four groups of relatively positioned electric telescopic rods 3 are fixedly installed on the top surface of the base 1, and a top seat 4 is fixedly installed on the top of the electric telescopic rod 3. An upper mold base 8 is fixedly installed on the bottom surface of the top seat 4, and nine groups of relatively positioned and matching convex mold cores 9 are fixedly installed on the bottom surface of the upper mold base 8. A through hole 12 is opened on the bottom surface of the upper mold base 8, and nine groups of injection ports 11 connected with the through hole 12 are fixedly installed on the top surface of the top seat 4. Through the arrangement of the lower mold base 5, the upper mold base 8 and the injection port 11, nine groups of core cavities 6 and convex mold cores 9 are respectively provided on the lower mold base 5 and the upper mold base 8, so that multiple groups of time gauge covers can be simultaneously injection molded through the injection port 11, and the injection molding efficiency is high and the practicability is high.

[0024] Example 2: Figure 2-4 As shown: the wall of the lower mold base 5 is hollow, condensed water is provided inside the base 1, a U-shaped input pipe 16 is fixedly installed on the right side of the base 1, and the output end of the U-shaped input pipe 16 is connected to the inside of the lower mold base 5, and a return pipe 17 connected to the base 1 is fixedly installed on the left side of the lower mold base 5, a water pump 18 is fixedly installed on the outer wall of the input pipe 16, and a condenser 15 is fixedly installed on the bottom surface of the base 1. Through the arrangement of the input pipe 16, the return pipe 17, the water pump 18 and the condenser 15, the water pump 18 can transport the condensed water in the base 1 to the lower mold base 5, and then flow back to the base 1 through the return pipe 17, so as to ensure the circulation of the condensed water and reduce the waste of water resources. The condenser 15 can keep the water in the base 1 at a low temperature, thereby improving the cooling effect.

[0025] Example 3: Figure 2-3 As shown: nine groups of heat flow pipes 10 connected to the injection port 11 are fixedly installed inside the top seat 4, and a heating component is provided on the outer wall of the heat flow pipe 10, so that the raw materials for injection can be heated to prevent the raw materials from condensing and solidifying during the injection process, thereby improving the efficiency of injection.

[0026] The working principle and use process of the utility model are as follows: when the device is needed to work, multiple groups of raw materials are first injected through multiple groups of injection ports 11 as needed, and the raw materials enter the core cavity 6 through the heat flow pipe 10 and the through hole. The air generated during the injection molding process is discharged from the exhaust hole A13 and the exhaust hole B14. The water pump 18 can transport the condensed water in the base 1 to the lower mold base 5, and then flow back to the base 1 through the reflux pipe 17, so as to ensure the circulation of the condensed water and reduce the waste of water resources. The condenser 15 can keep the water in the base 1 at a low temperature. After the injection molding is completed, the electric telescopic rod 3 drives the upper mold base 8 to move upward, and then the cylinder drives the bottom plate 7 to move upward, thereby ejecting the product for easy removal.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An injection mold for a timing cover of an automobile engine, comprising a base (1), wherein four groups of support columns (2) are fixedly mounted on the bottom surface of the base (1); Features: A lower mold base (5) is fixedly mounted on the top surface of the base (1), nine groups of mold core cavities (6) in opposite positions are formed on the top surface of the lower mold base (5), a bottom plate (7) is slidably connected in the mold core cavity (6), four groups of electric telescopic rods (3) in opposite positions are fixedly mounted on the top surface of the base (1), a top seat (4) is fixedly mounted on the top of the electric telescopic rod (3), an upper mold base (8) is fixedly mounted on the bottom surface of the top seat (4), nine groups of male mold cores (9) in opposite positions and with matching specifications are fixedly mounted on the bottom surface of the upper mold base (8), a through hole (12) is formed on the bottom surface of the upper mold base (8), and nine groups of injection ports (11) in communication with the through hole (12) are fixedly mounted on the top surface of the top seat (4); The wall of the lower die base (5) is hollow, condensed water is provided inside the base (1), a U-shaped input pipe (16) is fixedly mounted on the right side of the base (1), the output end of the U-shaped input pipe (16) is connected to the inside of the lower die base (5), a return pipe (17) connected to the base (1) is fixedly mounted on the left side of the lower die base (5), a water pump (18) is fixedly mounted on the outer wall of the input pipe (16), and a condenser (15) is fixedly mounted on the bottom surface of the base (1).

2. The automobile engine timing cover injection mold according to claim 1, characterized in that: Nine groups of heat flow pipes (10) connected to the injection port (11) are fixedly installed inside the top seat (4), and a heating component is provided on the outer wall of the heat flow pipe (10).

3. The automobile engine timing cover injection mold according to claim 1, characterized in that: The bottom surface of the upper die seat (8) is provided with an exhaust hole A (13) located outside the male die core (9), and the exhaust hole A (13) is opposite to the die core cavity (6).

4. The automobile engine timing cover injection mold according to claim 1, characterized in that: The top surface of the top seat (4) is provided with an exhaust hole B (14) which is connected to the exhaust hole A (13).

5. The automobile engine timing cover injection mold according to claim 1, characterized in that: The bottom surface of the bottom plate (7) is equipped with a cylinder, and the output end of the cylinder is connected to the bottom surface of the bottom plate (7).

6. The automobile engine timing cover injection mold according to claim 1, characterized in that: The outer wall of the core cavity (6) is coated with a heat-conducting layer.

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