Injection mold for automotive trim cover plate

Abstract

The utility model provides an automobile trim cover plate injection mold, which relates to the technical field of automobile part molds, and comprises a fixed frame body, a driving cylinder is arranged at the middle position of one side of the fixed frame body, and a convex mold is arranged at the output end of the driving cylinder at the middle position of one side of the fixed frame body; the position of the edge included angle of the male die is installed on a guide rod on the inner side of the fixing frame body in a sliding mode. A cold water tank is mounted at the bottom of the other side of the fixed frame body; a water pump is arranged on one side of the top of the cold water tank; a positioning support plate is mounted at the top of the fixed frame body; an air pump is installed on one side of the top of the positioning supporting plate, and a guiding sliding groove is formed in the middle of the top of the positioning supporting plate. And cold and hot water flows are injected into the flow dividing pipes correspondingly, the injection molding fluid is at the constant temperature, and rapid cooling and demolding are achieved during cooling.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessory molds, in particular to an automobile interior decoration cover plate injection mold. Background Art

[0002] Automobile interior cover plates are usually made of materials such as plastic, leather, and wood to provide decoration and protection for the interior of the car. Plastic automobile interior cover plates are processed by using injection molds, which are efficient and suitable for large-scale batch production. In the prior art, injection molds are used to process automobile interior cover plates, and the molds are often heated to allow the injected fluid to flow at a relatively constant temperature. However, when the injection molded automobile interior cover plate is cooled, the temperature of the mold is high, resulting in a long cooling time for the automobile interior cover plate, affecting the injection molding efficiency of the automobile interior cover plate. To this end, the utility model not only ensures that the injected fluid is at a constant temperature, but also provides an injection mold for cooling the automobile interior cover plate. Summary of the invention

[0003] The disclosed embodiment relates to an injection mold for an automobile interior cover plate. When molten plastic fluid is injected into a mold cavity on the side of a die, a relatively hot water flow flows through a shunt pipe to heat the die, so that the flowing plastic fluid is in a relatively constant temperature environment, thereby improving the quality of injection molding. When cooling, cold water flows into the shunt pipe to cool the die, thereby improving the cooling efficiency of the automobile interior cover plate after injection molding. The cold and hot water flows respectively through the shunt pipe, with a simple structure and obvious effects, thereby improving the efficiency of injection molding of automobile interior cover plates.

[0004] According to a first aspect of the present disclosure, an injection mold for an automobile interior cover is provided, which specifically includes: a fixed frame, a guide rod is installed at the position of the inner edge angle of the fixed frame, and a driving cylinder is installed at the middle position of one side of the fixed frame, and a punch is installed on the output end of the driving cylinder at the middle position of one side of the fixed frame; the punch edge angle is slidably installed on the guide rod inside the fixed frame; a cold water tank is installed at the bottom of the other side of the fixed frame; a water pump is provided on one side of the top of the cold water tank, and a heat sink is provided in the middle position of the cold water tank; a positioning support plate is installed on the top of the fixed frame; an air pump is installed on one side of the top of the positioning support plate, and a guide slot is provided in the middle position of the top of the positioning support plate.

[0005] In at least some embodiments, a die is installed on the inner side of the fixed frame; the edge angle of the die is installed on the guide rod inside the fixed frame, a mold cavity is provided on the side of the die, a punch is installed inside the mold cavity, and the top and bottom of the die are grooved.

[0006] In at least some embodiments, positioning templates are installed on the top and bottom of the side mold cavity of the female mold; the outer end of the positioning template is connected to the upper and lower ends of the female mold through a spring; and traction rods are installed on the upper and lower ends of the male mold.

[0007] In at least some embodiments, the traction rod is a cylindrical structure, and a push plate is installed on the side end of the traction rod; the push plate passes through the slots at the top and bottom of the die, and the push plate is slidably installed on the outer end of the positioning template.

[0008] In at least some embodiments, a hot water tank is installed on the top of the other side of the fixed frame; a water pump is installed on the bottom side of the hot water tank; and a guide pipe is installed on the output end of the water pump on the bottom side of the hot water tank and the output end of the water pump on the top side of the cold water tank.

[0009] In at least some embodiments, three-way valves are installed between the side ends of the two guide pipes and the water outlet pipes; a diverter pipe is installed at the side end of the water outlet pipe; and a diverter pipe is installed in the side wall of the die.

[0010] In at least some embodiments, an upper air guide cover is installed on the inner side of the positioning support plate; the bottom of the upper air guide cover is a conical structure, and the upper air guide cover is above the closed position of the punch and the die; and a connecting plate is installed on the top of the punch.

[0011] In at least some embodiments, the top of the connecting plate is slidably installed inside the guide groove, and a lower air guide cover is installed on the side of the connecting plate; the lower air guide cover is located at the bottom of the upper air guide cover, and the lower air guide cover is slidably installed on the top of one side of the punch; a telescopic tube is installed on the output end of the air pump on one side of the top of the positioning support plate; the side ends of the telescopic tube are respectively connected to the top of the upper air guide cover and the side of the lower air guide cover.

[0012] The utility model provides an injection mold for an automobile interior decoration cover plate, which has the following beneficial effects:

[0013] When the utility model is in use, the hot and cold water flows are respectively injected into the inside of the shunt pipe to ensure that the injection fluid is at a constant temperature, and the mold is quickly cooled and demolded during cooling. When the automobile interior cover plate is injection-molded, when the molten plastic fluid is injected into the mold cavity on the side of the die, the hotter water flows through the shunt pipe to heat the die, so that the flowing plastic fluid is in a relatively constant temperature environment, thereby improving the quality of the injection molding. When cooling, the cold water flows into the shunt pipe to cool the die, thereby improving the cooling efficiency of the automobile interior cover plate after injection molding. The hot and cold water flows respectively through the shunt pipe, the structure is simple, the effect is obvious, and the efficiency of the automobile interior cover plate injection molding is improved.

[0014] In addition, by using the upper air guide hood and the lower air guide hood to spray air to the die and the punch, the dust adhering to the cavity on the side of the die or the side of the punch is reduced. After the automobile interior cover is injection molded, the air flow flows out through the upper air guide hood and the lower air guide hood respectively, so that the lower air guide hood blows the cavity on the side of the die during the movement. On the one hand, the injection molded automobile interior cover is cooled and the firmness of the automobile interior cover is improved. On the other hand, the dust adhering to the cavity is prevented, ensuring that there is no dust when the die and the punch are closed, thereby improving the quality of the injection molding of the automobile interior cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram of the unfolded state of the present application is shown;

[0020] Figure 3 A schematic cross-sectional structure diagram of a fixed frame of the present application is shown;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of the shunt tube of the present application is shown;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the cold water tank of the present application is shown;

[0023] Figure 6 A schematic diagram of the bottom three-dimensional structure of the positioning support plate of the present application is shown;

[0024] Reference numerals list

[0025] 1. Fixed frame; 101. Punch; 102. Concave; 103. Positioning template; 104. Drawbar; 105. Push plate;

[0026] 2. Cold water tank; 201. Heat sink; 202. Hot water tank; 203. Flow guide pipe; 204. Water outlet pipe; 205. Diverter pipe;

[0027] 3. Positioning support plate; 301. Guide chute; 302. Upper air guide cover; 303. Connecting plate; 304. Lower air guide cover; 305. Telescopic tube. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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.

[0029] Please refer to Figures 1 to 6 :

[0030] Embodiment 1:

[0031] The utility model proposes an injection mold for an automobile interior decoration cover, comprising: a fixed frame 1, a guide rod is installed at the position of the inner edge angle of the fixed frame 1, a driving cylinder is installed at the middle position of one side of the fixed frame 1, and a punch 101 is installed on the output end of the driving cylinder at the middle position of one side of the fixed frame 1; the position of the edge angle of the punch 101 is slidably installed on the guide rod inside the fixed frame 1; a concave mold 102 is installed on the inner side of the fixed frame 1; the position of the edge angle of the concave mold 102 is installed on the guide rod inside the fixed frame 1, and the side of the concave mold 102 is provided with a mold The cavity is closed and a punch 101 is installed inside the cavity, and the top and bottom of the die 102 are grooved; the top and bottom of the side cavity of the die 102 are installed with a positioning template 103; the outer end of the positioning template 103 is connected to the upper and lower ends of the die 102 through a spring; the upper and lower ends of the punch 101 are installed with a traction rod 104; the traction rod 104 is a cylindrical structure, and the side end of the traction rod 104 is installed with a push plate 105; the push plate 105 passes through the grooves at the top and bottom of the die 102, and the push plate 105 is slidably installed on the outer end of the positioning template 103.

[0032] In the embodiment of the present disclosure, when the automobile interior decoration cover plate is injection molded, the driving cylinder on one side of the fixed frame body 1 drives the punch 101 to slide along the guide rod at the angle position of the inner edge of the fixed frame body 1, so that the side of the punch 101 is closed in the mold cavity on the side of the die 102, and the positioning template 103 is closed and installed at the upper and lower ends of the mold cavity on the side of the die 102 under the action of the spring, so that the positioning template 103 and the mold cavity on the side of the die 102 form a whole, and the automobile interior decoration cover plate is injection molded by injecting molten plastic into the mold cavity. After the injection molding is completed, the driving cylinder on one side of the fixed frame body 1 drives the punch 101 to move outward, and the upper and lower ends of the punch 101 drive the push plate 105 at the side end of the traction rod 104 to move, so that the push plate 105 pushes the positioning template 103 to leave the mold cavity on the side of the die 102, so that the positioning template 103 drives the automobile interior decoration cover plate after injection molding in the die 102 to move outward, and the injection molding and demolding of the automobile interior decoration cover plate are completed.

[0033] Embodiment 2, on the basis of embodiment 1, a cold water tank 2 is installed at the bottom of the other side of the fixed frame 1; a water pump is provided on one side of the top of the cold water tank 2, and a heat sink 201 is provided in the middle position of the cold water tank 2; a hot water tank 202 is installed at the top of the other side of the fixed frame 1; a water pump is installed on one side of the bottom of the hot water tank 202; a guide pipe 203 is installed on the output end of the water pump on the bottom side of the hot water tank 202 and the output end of the water pump on the top side of the cold water tank 2; a three-way valve is installed between the side ends of the two guide pipes 203 and the water outlet pipe 204; a shunt pipe 205 is installed on the side end of the water outlet pipe 204; a shunt pipe 205 is installed in the side wall of the concave mold 102, and when the automobile interior decoration cover is injection molded, while the molten plastic fluid is injected into the mold cavity on the side of the concave mold 102, the three-way valve between the water outlet pipe 204 and the guide pipe 203 is adjusted to make the guide pipe on the water pump at the bottom of the hot water tank 202 The flow pipe 203 is connected with the water outlet pipe 204, so that the hotter water in the hot water tank 202 flows to the water outlet pipe 204 through the guide pipe 203 at the bottom and then flows to the inside of the diverter pipe 205, heating the die 102, ensuring that the molten plastic fluid is in a relatively constant temperature state, so that the fluid completely fills the die 102, and reduces the problem of air holes after the injection molding of the automobile interior cover plate. When the injection molding is cooled, the three-way valve between the water outlet pipe 204 and the guide pipe 203 is adjusted, so that the cold water in the cold water tank 2 flows through the guide pipe 203 on the top water pump to the water outlet pipe 204 and then flows to the inside of the diverter pipe 205, cooling the die 102, and the cooling water flows back to the inside of the cold water tank 2. The heat sink 201 in the middle position of the cold water tank 2 increases the speed of water cooling, so that the automobile interior cover plate in the die 102 is quickly cooled and formed, thereby improving the efficiency of demoulding the automobile interior cover plate.

[0034] Embodiment 3, on the basis of embodiment 1, a positioning support plate 3 is installed on the top of the fixed frame 1; an air pump is installed on one side of the top of the positioning support plate 3, and a guide slot 301 is opened in the middle position of the top of the positioning support plate 3; an upper air guide cover 302 is installed on the inner side of the positioning support plate 3; the bottom of the upper air guide cover 302 is a conical structure, and the upper air guide cover 302 is above the closed position of the punch 101 and the die 102; a connecting plate 303 is installed on the top of the punch 101; the top of the connecting plate 303 is slidably installed in the inside of the guide slot 301, and a lower air guide cover 304 is installed on the side of the connecting plate 303; the lower air guide cover 304 is located at the bottom of the upper air guide cover 302, and the lower air guide cover 304 is slidably installed on the top of one side of the punch 101; a telescopic tube 305 is installed on the output end of the air pump on one side of the top of the positioning support plate 3; The side ends are respectively connected to the top of the upper air guide hood 302 and the side of the lower air guide hood 304. When the automobile interior cover is demoulded, the airflow generated by the air pump on the top of the positioning support plate 3 flows into the lower air guide hood 304 and the upper air guide hood 302 respectively through the telescopic tube 305, so that the airflow ejected from the upper air guide hood 302 and the lower air guide hood 304 blows the closed place of the punch 101 and the die 102. As the punch 101 moves outward, the top of the punch 101 drives the connecting plate 303 to move along the guide slot 301, and the side of the connecting plate 303 drives the lower air guide hood 304 to continuously blow the side of the punch 101. On the one hand, it reduces the problem of dust in the air adhering to the mold cavity on the sides of the punch 101 and the die 102. On the other hand, it cools down the automobile interior cover after injection molding to ensure the firmness of the automobile interior cover.

[0035] The working principle of this embodiment is as follows: during injection molding, the driving cylinder on one side of the fixed frame 1 drives the punch 101 to slide along the guide rod on the inner side of the fixed frame 1, and the side of the punch 101 is closed in the mold cavity on the side of the die 102. The automobile interior decoration cover is injection molded by injecting molten plastic into the mold cavity. The three-way valve between the water outlet pipe 204 and the guide pipe 203 is adjusted, and the hotter water in the hot water tank 202 flows through the guide pipe 203 at the bottom to the water outlet pipe 204 and then flows into the diversion pipe 205 to heat the die 102. The molten plastic fluid is in a relatively constant temperature state and completely fills the die 102. After the injection molding is completed, the three-way valve between the water outlet pipe 204 and the guide pipe 203 is adjusted again, and the cold water in the cold water tank 2 flows through the guide pipe 203 on the top water pump to the water outlet pipe 204 and then flows into the diversion pipe 205 to cool the die 102. The automobile interior decoration cover plate is quickly cooled and formed, and the airflow generated by the air pump on the top of the positioning support plate 3 flows into the lower air guide cover 304 and the upper air guide cover 302 respectively through the telescopic tube 305, so that the airflow ejected from the upper air guide cover 302 and the lower air guide cover 304 blows the closed place of the punch 101 and the die 102. As the punch 101 moves outward, the punch 101 drives the lower air guide cover 304 to continuously blow the side of the punch 101 through the connecting plate 303, thereby reducing the problem of dust adhering to the mold cavity on the sides of the punch 101 and the die 102. The automobile interior decoration cover plate is cooled after injection molding, and the driving cylinder on one side of the fixed frame 1 drives the punch 101 to move outward. The upper and lower ends of the punch 101 drive the push plate 105 on the side end of the traction rod 104 to push the positioning template 103 to move outward, and the positioning template 103 drives the automobile interior decoration cover plate in the die 102 to move outward, thereby completing the injection molding and demolding of the automobile interior decoration cover plate.

[0036] In this article, there are a few points to note:

[0037] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0039] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An injection mold for an automobile interior cover, comprising: A fixed frame (1), a guide rod is installed at the position of the inner edge angle of the fixed frame (1), a driving cylinder is installed at the middle position of one side of the fixed frame (1), and a punch (101) is installed on the output end of the driving cylinder at the middle position of one side of the fixed frame (1); the punch (101) is slidably installed at the position of the edge angle of the fixed frame (1) on the guide rod inside the fixed frame (1); characterized in that A cold water tank (2) is installed at the bottom of the other side of the fixed frame (1); a water pump is provided on one side of the top of the cold water tank (2); a positioning support plate (3) is installed on the top of the fixed frame (1); an air pump is installed on one side of the top of the positioning support plate (3), and a guide groove (301) is provided in the middle of the top of the positioning support plate (3); A concave mold (102) is installed on the inner side of the fixed frame (1); and a shunt pipe (205) is installed in the side wall of the concave mold (102).

2. The automotive interior trim cover plate injection mold according to claim 1, characterized in that: The edge angle of the female mold (102) is installed on the guide rod inside the fixed frame (1), the side of the female mold (102) is provided with a mold cavity, the inside of the mold cavity is closed and the male mold (101) is installed, and the top and bottom of the female mold (102) are grooved.

3. The automobile interior trim cover plate injection mold according to claim 2, characterized in that: Positioning templates (103) are installed at the top and bottom of the side mold cavity of the female mold (102); the outer end of the positioning template (103) is connected to the upper and lower ends of the female mold (102) through a spring; and traction rods (104) are installed at the upper and lower ends of the male mold (101).

4. The automobile interior trim cover plate injection mold according to claim 3, characterized in that: A push plate (105) is installed at the side end of the traction rod (104); the push plate (105) passes through the slots at the top and bottom of the concave mold (102), and the push plate (105) is slidably installed on the outer end of the positioning template (103).

5. The automobile interior trim cover injection mold according to claim 4, characterized in that: A hot water tank (202) is installed on the top of the other side of the fixed frame (1); a water pump is installed on the bottom side of the hot water tank (202); and a flow guide pipe (203) is installed on the output end of the water pump on the bottom side of the hot water tank (202) and the output end of the water pump on the top side of the cold water tank (2).

6. The automobile interior trim cover injection mold according to claim 5, characterized in that: Three-way valves are installed between the side ends of the two guide pipes (203) and the water outlet pipe (204); and a diversion pipe (205) is installed at the side end of the water outlet pipe (204).

7. The automobile interior trim cover plate injection mold according to claim 6, characterized in that: An upper air guide cover (302) is installed on the inner side of the positioning support plate (3); the upper air guide cover (302) is located above the closed position of the male mold (101) and the female mold (102); and a connecting plate (303) is installed on the top of the male mold (101).

8. The automobile interior trim cover plate injection mold according to claim 7, characterized in that: The top of the connecting plate (303) is slidably mounted inside the guide slot (301), and a lower air guide cover (304) is mounted on the side of the connecting plate (303); the lower air guide cover (304) is located at the bottom of the upper air guide cover (302), and the lower air guide cover (304) is slidably mounted on the top of one side of the punch (101); a telescopic tube (305) is mounted on the output end of the air pump on one side of the top of the positioning support plate (3); the side ends of the telescopic tube (305) are respectively connected to the top of the upper air guide cover (302) and the side of the lower air guide cover (304).

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