Stamping die for automobile resin parts

Abstract

The utility model relates to the technical field of stamping dies, in particular to an automobile resin part stamping die which comprises an upper die base, a lower die base, a stamping mechanism and a forming die, the forming die is connected between the upper die base and the lower die base, and the stamping mechanism is installed in the forming die. The forming mold comprises a mold A, a mold B and a movable mold, the mold A is fixedly connected to the lower end of the upper mold base, the mold B is fixedly connected to the lower end of the mold A, a first runner is formed between the upper mold base and the mold A, and a groove, a second runner, a third runner and a forming cavity are formed in the mold B. The second runner communicates with the first runner and the third runner correspondingly. The third runner is communicated with the forming cavity; the movable mold is fixedly connected to the lower mold base and is positioned under the mold B; according to the utility model, the stamping function after injection molding can be realized, the injection molding function and the stamping function can be simultaneously carried out on the automobile resin part on one device, and the processing efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die for automobile resin parts. Background Art

[0002] At present, automotive resin parts refer to parts made of various resin materials used in automobile manufacturing. These parts are usually used for automobile exterior decoration, interior decoration, and some functional parts. Some common automotive resin parts currently include:

[0003] Plastic exterior parts: such as front and rear bumpers, door handles, side skirts, etc. These parts are usually made of plastics such as polypropylene (PP), polystyrene (PS), polycarbonate (PC), etc., which are lightweight, corrosion-resistant, have good surface texture and impact absorption capabilities.

[0004] Interior parts: such as instrument panels, center consoles, door panels, seats, etc. These parts are usually made of ABS (acrylonitrile butadiene styrene copolymer), PVC (polyvinyl chloride), PU (polyurethane) and other materials, with good decorative performance, comfort and durability.

[0005] Engine parts: such as intake manifold, oil pan, water tank, etc. These parts usually use high temperature resistant engineering plastics, such as nylon (PA), polyamide (PI), etc., to meet the requirements of high temperature environment of the engine.

[0006] Chassis and suspension parts: such as suspension arms, steering rods, shock absorber seats, etc. These parts are usually made of glass fiber reinforced nylon, polyamide and other materials, with high strength, rigidity and wear resistance.

[0007] The use of automotive resin parts can achieve lightweight design of automobiles, reduce fuel consumption, and improve vehicle performance and economy. At the same time, resin materials are relatively cheap and the production process is flexible, so they are widely used in automobile manufacturing.

[0008] However, the injection molding and stamping of traditional automobile tree parts currently require the use of different equipment and processes, which are cumbersome and inefficient. Therefore, it is necessary to design an integrated process that can complete injection molding and stamping on the same equipment to improve processing efficiency and reduce production costs. Utility Model Content

[0009] The utility model aims to provide a stamping die for automobile resin parts. The utility model can realize the function of stamping after injection molding, and can perform injection molding and stamping on automobile resin parts simultaneously on one device, so the processing efficiency is high.

[0010] The utility model adopts the following technical solution to solve the above technical problems: a stamping die for automobile resin parts, comprising an upper die base, a lower die base, a stamping mechanism and a forming die, wherein the forming die is connected between the upper die base and the lower die base, and the stamping mechanism is installed inside the forming die;

[0011] The molding mold comprises a mold A, a mold B and a movable mold, the mold A is fixedly connected to the lower end of the upper mold base, the mold B is fixedly connected to the lower end of the mold A, a first flow channel is opened in the middle position of the upper mold base and the mold A, a groove, a second flow channel, a third flow channel and a molding cavity are opened inside the mold B, the second flow channel is respectively connected to the first flow channel and the third flow channel, and the third flow channel is connected to the molding cavity;

[0012] The movable mold is fixedly connected to the lower mold base, and the movable mold is located directly below the mold B. The stamping mechanism is installed inside the movable mold, and the stamping mechanism includes a hydraulic cylinder and a stamping block. An oil storage cavity is opened inside the movable mold, and one end of the hydraulic cylinder is connected to the oil storage cavity. A first piston is connected to the other end of the hydraulic cylinder, and the first piston is located at the bottom of the mold B.

[0013] A second piston is arranged inside the oil storage cavity, and the second piston is fixedly connected to the punching block. A punching head is integrally connected to the punching block, and the position of the punching head corresponds to the position of the groove.

[0014] Furthermore, a support base is provided at the bottom of the lower die base, and two support pads are fixedly connected to the upper end of the support base, and the support pads are fixedly connected to the bottom of the lower die base.

[0015] Furthermore, two ejector plates are provided at the upper end of the support base, and both ejector plates are located between the two support pads. Ejector rods A and B are provided inside the ejector plates, and ejector rod A is located at the bottom of the molding cavity, and ejector rod B is located at the bottom of the stamping block.

[0016] Furthermore, the supporting pad is a rubber pad.

[0017] The advantages of the utility model are: the utility model provides a stamping die for automotive resin parts, which has the following technical effects:

[0018] The utility model is provided with a stamping mechanism inside the movable mold, the stamping mechanism includes a hydraulic cylinder and a stamping block, an oil storage chamber is opened inside the movable mold, one end of the hydraulic cylinder is connected to the oil storage chamber, and the other end of the hydraulic cylinder is connected to a first piston, and the first piston is located at the bottom of the mold B. The hydraulic cylinder in the utility model is a double-acting hydraulic cylinder, and there are oil ports at both ends of the hydraulic cylinder, which can realize bidirectional movement during the working process. The hydraulic cylinder can drive the second piston to rise through oil pressure, so that the stamping block stamps the workpiece. When the oil enters the other oil port, the first piston will move upward to push the mold B and the movable mold apart. The utility model can realize the effect of stamping after injection molding, and can perform injection molding and stamping on automotive resin parts on one device at the same time, and the processing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the mold B and the movable mold in the utility model in a separated state;

[0022] Figure 3 It is a schematic diagram of the assembly structure between the upper die base and the lower die base in the utility model;

[0023] in:

[0024] 1. Upper die base; 2. Die A; 3. Die B;

[0025] 4. First flow channel; 5. Second flow channel; 6. Third flow channel;

[0026] 7. Molding cavity; 8. Moving mold; 9. First piston;

[0027] 10. Hydraulic cylinder; 11. Second piston; 12. Punching block;

[0028] 13. Ejector A; 14. Groove; 15. Punch head;

[0029] 16. Push rod B; 17. Oil storage chamber; 18. Support base;

[0030] 19. Ejector plate; 20. Support pad; 21. Lower die base. DETAILED DESCRIPTION

[0031] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] Figure 1 It is a cross-sectional structural schematic diagram of the utility model. Figure 2 This is a schematic diagram of the structure of the mold B and the movable mold in the utility model in a separated state. Figure 3 FIG. 1 is a schematic diagram of the assembly structure between the upper die base and the lower die base in the utility model, as shown in FIG. Figure 1 , Figure 2 and Figure 3 The stamping die for an automobile resin part shown in the figure comprises an upper die base 1, a lower die base 21, a stamping mechanism and a forming die, wherein the forming die is connected between the upper die base 1 and the lower die base 21, and the stamping mechanism is installed inside the forming die;

[0035] The molding mold in the utility model comprises a mold A2, a mold B3 and a movable mold 8, wherein the mold A2 is fixedly connected to the lower end of the upper mold base 1, and the mold B3 is fixedly connected to the lower end of the mold A2. A first flow channel 4 is provided in the middle of the upper mold base 1 and the mold A2, and a groove 14, a second flow channel 5, a third flow channel 6 and a molding cavity 7 are provided inside the mold B3. The second flow channel 5 is communicated with the first flow channel 4 and the third flow channel 6 respectively, and the third flow channel 6 is communicated with the molding cavity 7. Resin can be discharged from the first flow channel 4 and the third flow channel 6. 4 is injected into the second flow channel 5 and the third flow channel 6 to fill the entire molding cavity 7, and then the resin part is molded by cooling and solidification. For example, for polypropylene (PP) resin parts, after cooling for 20 seconds to 60 seconds, its temperature is 25°C to 45°C, and the stamping effect by the stamping mechanism is the best at this time; for polyethylene resin, after cooling for 30 seconds to 90 seconds, its temperature is about 30°C to 50°C, and the stamping effect by the stamping mechanism is the best at this time; for polystyrene resin, its temperature is 35°C to 55°C, and the stamping effect by the stamping mechanism is the best at this time.

[0036] The movable mold 8 in the utility model is fixedly connected to the lower mold base 21, and the movable mold 8 is located directly below the mold B3. The stamping mechanism is installed inside the movable mold 8, and the stamping mechanism includes a hydraulic cylinder 10 and a stamping block 12. An oil storage chamber 17 is opened inside the movable mold 8, and one end of the hydraulic cylinder 10 is connected to the oil storage chamber 17. A first piston 9 is connected to the other end of the hydraulic cylinder 10, and the first piston 9 is located at the bottom of the mold B3; a second piston 11 is arranged inside the oil storage chamber 17, and the second piston 11 is connected to the stamping block 12. The pressing blocks 12 are fixedly connected to each other, and a punch head 15 is integrally connected to the punch block 12. The position of the punch head 15 corresponds to the position of the groove 14. The hydraulic cylinder 10 in the utility model is a double-acting hydraulic cylinder 10. There are oil ports at both ends of the hydraulic cylinder 10, which can realize bidirectional movement during operation. The hydraulic cylinder 10 can drive the second piston 11 to rise through oil pressure, so that the punch block 12 punches the workpiece. When the oil enters the other oil port, the first piston 9 will move upward to push the mold B3 and the movable mold 8 apart.

[0037] The utility model is provided with a support base 18 at the bottom of the lower die base 21, and two support pads 20 are fixedly connected to the upper end of the support base 18. The support pads 20 and the bottom of the lower die base 21 are fixedly connected to each other. The support pads 20 are made of rubber pads, which can play a shock-absorbing role in the process of stamping automobile resin parts; the utility model is provided with two ejector plates 19 at the upper end of the support base 18, and the two ejector plates 19 are both located between the two support pads 20. A push rod A13 and a push rod B16 are arranged inside the ejector plate 19. The push rod A13 is located at the bottom of the molding cavity 7, and the push rod B16 is located at the bottom of the stamping block 12. The two ejector plates 19 can be driven by external driving mechanisms respectively, so that the push rod A13 and the ejector plate B can achieve the lifting effect.

[0038] Working principle: When the utility model is in use, the resin is first injected into the first flow channel 4, and the resin flows into the molding cavity 7 through the first flow channel 4, the second flow channel 5, the third flow channel 6 and the fourth flow channel for injection molding. Then the hydraulic cylinder 10 is started, and the second piston 11 is driven to rise by the hydraulic cylinder 10, and the second piston 11 drives the punching block 12 to perform lifting and punching at the same time, and the automobile resin part is punched by the punching head 15. At the same time, one of the ejector plates 19 is driven to be ejected by an externally arranged driving mechanism, and the punching head 15 is assisted to be lifted by the ejector rod B16. When the punching process is completed, the hydraulic cylinder 10 drives the first piston 9 to be lifted upward, and the mold B3 and the movable mold 8 are pushed open, and then the other ejector plate 19 is driven to be ejected by the externally arranged driving mechanism, and the resin part is ejected by the ejector rod A13.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A stamping die for automobile resin parts, comprising an upper die base (1), a lower die base (21), a stamping mechanism and a forming die, wherein the forming die is connected between the upper die base (1) and the lower die base (21), and the stamping mechanism is installed inside the forming die; Features: The molding die comprises a die A (2), a die B (3) and a movable die (8); the die A (2) is fixedly connected to the lower end of the upper die seat (1); the die B (3) is fixedly connected to the lower end of the die A (2); a first flow channel (4) is provided in the middle of the upper die seat (1) and the die A (2); a groove (14), a second flow channel (5), a third flow channel (6) and a molding cavity (7) are provided inside the die B (3); the second flow channel (5) is communicated with the first flow channel (4) and the third flow channel (6) respectively; and the third flow channel (6) is communicated with the molding cavity (7); The movable mold (8) is fixedly connected to the lower mold base (21). The movable mold (8) is located directly below the mold B (3). The stamping mechanism is installed inside the movable mold (8). The stamping mechanism includes a hydraulic cylinder (10) and a stamping block (12). An oil storage chamber (17) is provided inside the movable mold (8). One end of the hydraulic cylinder (10) is connected to the oil storage chamber (17). The other end of the hydraulic cylinder (10) is connected to a first piston (9). The first piston (9) is located at the bottom of the mold B (3). A second piston (11) is disposed inside the oil storage chamber (17); the second piston (11) and the punch block (12) are fixedly connected to each other; a punch head (15) is integrally connected to the punch block (12); the position of the punch head (15) corresponds to the position of the groove (14).

2. The automotive resin parts stamping die according to claim 1, characterized in that: A support base (18) is provided at the bottom of the lower die base (21), and two support pads (20) are fixedly connected to the upper end of the support base (18), and the support pads (20) and the bottom of the lower die base (21) are fixedly connected to each other.

3. The automotive resin parts stamping die according to claim 2, characterized in that: Two ejector plates (19) are arranged at the upper end of the support base (18), and the two ejector plates (19) are both located between the two support pads (20). An ejector rod A (13) and an ejector rod B (16) are arranged inside the ejector plate (19), and the ejector rod A (13) is located at the bottom of the molding cavity (7), and the ejector rod B (16) is located at the bottom of the punching block (12).

4. The automotive resin parts stamping die according to claim 2, characterized in that: The supporting pad (20) is a rubber pad.

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