A precision automotive grille mold injection structure

Abstract

The utility model discloses a precision automobile grille mold injection molding structure, which relates to the field of injection molds, including a base, support rods are fixedly installed at the four corners of the top of the base, a top plate is fixedly installed at the top of the support rods, a telescopic cylinder is fixedly installed at the middle of the top of the top plate, a slide plate located below the top plate is fixedly installed at the bottom of the telescopic cylinder, an upper mold is fixedly installed at the bottom of the slide plate, and a lower mold corresponding to the upper mold is fixedly installed at the top of the base. The utility model drives the upper mold to move and cooperate with the lower mold for injection molding through the telescopic cylinder, and through the cooling components arranged in the upper mold and the lower mold, cooling water is injected into the lateral cooling groove and the cooling bottom groove in the lower mold to cover the injection cavity in the lower mold and conduct heat through the heat conduction plate, thereby increasing the contact area between the cooling water and the injection cavity, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a precision automobile grille mold injection structure. Background Art

[0002] Moulds are various moulds and tools used in industrial production to obtain the required products by injection moulding, blow moulding, extrusion, die casting or forging, smelting, stamping and other methods. The front grille of a car is a grid-like component on the front part of the car. The front grille of the vehicle is located between the front bumper and the front crossbeam of the car body. Since the hood lock needs to be arranged on the upper surface area of ​​the front grille, the front grille needs to have a hood lock avoidance through hole to avoid the hood lock. At present, the production of car grilles requires the use of injection moulds for molding.

[0003] The existing automobile grille injection mold, when cooling, passes cooling water into the mold, and the heat is taken away by the cooling water flowing through the channel set in the mold. However, when absorbing heat, the contact surface with the mold forming cavity is not large, which reduces the cooling effect. At the same time, when the molded automobile grille is taken out from the injection mold, it may get stuck in the injection mold and is inconvenient to take out. At the same time, it may be carried out with the movable mold and is not easy to demold, which is more troublesome to take out. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A precision automobile grille mold injection molding structure comprises a base, support rods are fixedly installed at the four corners of the top of the base, a top plate is fixedly installed at the top of the support rods, a telescopic cylinder is fixedly installed at the middle of the top of the top plate, a slide plate located below the top plate is fixedly installed at the bottom end of the telescopic cylinder, an upper mold is fixedly installed at the bottom end of the slide plate, a lower mold corresponding to the upper mold is fixedly installed at the top of the base, ejection assemblies are fixedly installed inside the upper mold and the lower mold, and a cooling assembly is fixedly installed inside the lower mold.

[0006] A further improvement of the technical solution of the utility model is that: the cooling component includes a lateral cooling groove and a cooling bottom groove, the lateral cooling groove is opened on the inner side of the lower mold, the cooling bottom groove is opened at the inner bottom end of the lower mold, the lateral cooling groove and the cooling bottom groove are connected, the inner sides of the lateral cooling groove and the cooling bottom groove are provided with a heat conducting plate fixedly connected to the lower mold, and a water inlet pipe and a water outlet pipe are fixedly installed on the right side of the lower mold.

[0007] A further improvement of the technical solution of the utility model is that: the ejection assembly includes an upper ejection cylinder and a lower ejection cylinder, the upper mold and the lower mold are respectively provided with a mounting groove one and a mounting groove two, the upper ejection cylinder is fixedly installed in the mounting groove one, the lower ejection cylinder is fixedly installed in the mounting groove two, the outer ends of the upper ejection cylinder and the lower ejection cylinder are fixedly connected to connectors located outside the upper mold and the lower mold, the bottom end of the upper ejection cylinder is fixedly connected to an upper ejection plate flush with the upper mold, and the top end of the lower ejection cylinder is fixedly connected to a lower ejection plate flush with the lower mold.

[0008] A further improvement of the technical solution of the utility model is that the cooling bottom trough is arranged in an annular shape, and the cooling bottom trough is respectively connected with the water inlet pipe and the water outlet pipe.

[0009] A further improvement of the technical solution of the utility model is that valves are fixedly installed on the outside of the water inlet pipe and the water outlet pipe, and quick connectors are arranged on the outside of the water inlet pipe and the water outlet pipe.

[0010] A further improvement of the technical solution of the utility model is that: the heat conducting plate is arranged in an "L" shape, and the heat conducting plate is made of graphite material.

[0011] A further improvement of the technical solution of the utility model is that the inner sides of the first installation groove and the second installation groove are both provided with stepped edges respectively matched with the upper ejection plate and the lower ejection plate.

[0012] A further improvement of the technical solution of the utility model is that the positions of the upper ejection plate and the lower ejection plate correspond to each other vertically.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a precision automobile grille mold injection molding structure, which drives the upper mold to move and cooperate with the lower mold for injection molding through a telescopic cylinder, and through a cooling component arranged in the upper mold and the lower mold, injects cooling water into the lateral cooling groove and the cooling bottom groove in the lower mold to cover the injection cavity in the lower mold and conducts heat through a heat conduction plate, thereby increasing the contact area between the cooling water and the injection cavity, thereby improving the heat dissipation effect.

[0015] 2. The utility model provides a precision automobile grille mold injection molding structure, which is provided with an ejector assembly in the upper mold and the lower mold. When the upper mold is removed after injection molding, the lower ejector cylinder and the upper ejector cylinder located in the upper mold and the lower mold are driven in sequence to push the grille component up and down, thereby facilitating removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the precision automobile grille mold injection molding structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper mold of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the lower mold of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the heat conducting plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the valve of the utility model.

[0021] In the figure: 1. base; 2. support rod; 3. top plate; 4. telescopic cylinder; 5. upper mold; 51. mounting slot one; 6. lower mold; 61. mounting slot two; 71. upper ejector cylinder; 72. connector; 73. upper ejector plate; 74. lower ejector cylinder; 75. lower ejector plate; 81. lateral cooling slot; 82. cooling bottom slot; 83. heat conduction plate; 84. water inlet pipe; 85. water outlet pipe; 86. valve. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below:

[0023] like Figures 1 to 5 As shown, the utility model provides a precision automobile grille mold injection molding structure, including a base 1, support rods 2 are fixedly installed at the four corners of the top of the base 1, a top plate 3 is fixedly installed at the top of the support rod 2, a telescopic cylinder 4 is fixedly installed at the middle of the top of the top plate 3, a slide plate located below the top plate 3 is fixedly installed at the bottom end of the telescopic cylinder 4, an upper mold 5 is fixedly installed at the bottom end of the slide plate, a lower mold 6 corresponding to the upper mold 5 is fixedly installed at the top of the base 1, ejection components are fixedly installed inside the upper mold 5 and the lower mold 6, and a cooling component is fixedly installed inside the lower mold 6.

[0024] The upper mold 5 is driven by the telescopic cylinder 4 to move and cooperate with the lower mold 6 for injection molding, and the cooling assembly arranged in the upper mold 5 and the lower mold 6 injects cooling water into the lateral cooling groove 81 and the cooling bottom groove 82 in the lower mold 6 to cover the injection cavity in the lower mold 6 and conduct heat through the heat conduction plate 83, thereby increasing the contact area between the cooling water and the injection cavity, thereby improving the heat dissipation effect, and the ejection assembly arranged in the upper mold 5 and the lower mold 6, when the upper mold 5 is removed after injection, the lower ejection cylinder 74 and the upper ejection cylinder 71 located in the upper mold 5 and the lower mold 6 are driven in turn to lift and push down the grid piece, thereby facilitating removal.

[0025] like Figure 3 , Figure 4 and Figure 5As shown, the cooling assembly includes a lateral cooling groove 81 and a cooling bottom groove 82. The lateral cooling groove 81 is opened on the inner side of the lower mold 6, and the cooling bottom groove 82 is opened on the inner bottom end of the lower mold 6. The lateral cooling groove 81 and the cooling bottom groove 82 are connected. The inner sides of the lateral cooling groove 81 and the cooling bottom groove 82 are provided with a heat conducting plate 83 fixedly connected to the lower mold 6. A water inlet pipe 84 and a water outlet pipe 85 are fixedly installed on the right side of the lower mold 6.

[0026] By connecting an external water pipe to the water inlet pipe 84 and the water outlet pipe 85, opening the valve 86 on the water inlet pipe 84 and pumping cooling water through the water inlet pipe 84 to inject it into the cooling bottom groove 82, the cooling water enters the cooling bottom groove 82 and fills the lateral cooling groove 81, and the heat conduction plate 83 uses graphite material to contact the injection cavity over a large area to conduct heat to the lateral cooling groove 81 and the cooling bottom groove 82 to exchange heat with the cooling water, thereby achieving rapid cooling. After multiple uses, the higher temperature cooling water in the lateral cooling groove 81 and the cooling bottom groove 82 can be replaced by operating the water inlet pipe 84 and the water outlet pipe 85 respectively, thereby ensuring the contact surface with the lower mold 6 and improving the cooling effect.

[0027] like Figure 2 and Figure 3 As shown, the ejection assembly includes an upper ejection cylinder 71 and a lower ejection cylinder 74. The upper mold 5 and the lower mold 6 are respectively provided with a mounting groove 1 51 and a mounting groove 2 61. The upper ejection cylinder 71 is fixedly installed in the mounting groove 1 51, and the lower ejection cylinder 74 is fixedly installed in the mounting groove 2 61. The outer ends of the upper ejection cylinder 71 and the lower ejection cylinder 74 are fixedly connected to a connector 72 located outside the upper mold 5 and the lower mold 6. The bottom end of the upper ejection cylinder 71 is fixedly connected to an upper ejection plate 73 flush with the upper mold 5, and the top end of the lower ejection cylinder 74 is fixedly connected to a lower ejection plate 75 flush with the lower mold 6.

[0028] The upper mold 5 is driven upward by driving the telescopic cylinder 4 to separate from the interior of the lower mold 6. The lower ejection cylinder 74 is driven upward to drive the lower ejection plate 75 to lift the grille member in the lower mold 6 upward to separate from the interior of the lower mold 6. Subsequently, the upper ejection cylinder 71 is driven downward to push the upper ejection plate 73 to separate from the upper mold 5 and the lower mold 6 to prevent adhesion, thereby facilitating removal.

[0029] like Figure 5 As shown, the cooling bottom trough 82 is arranged in a ring shape, and the cooling bottom trough 82 is connected to the water inlet pipe 84 and the water outlet pipe 85 respectively.

[0030] The cooling bottom tank 82 is arranged in an annular shape and is connected with the water inlet pipe 84 and the water outlet pipe 85 , so that cooling water is injected into the cooling bottom tank 82 for cooling.

[0031] like Figure 5As shown, valves 86 are fixedly installed on the outside of the water inlet pipe 84 and the water outlet pipe 85, and quick connectors are provided on the outside of the water inlet pipe 84 and the water outlet pipe 85.

[0032] The quick connector facilitates connection with an external water pipe, and the valves 86 outside the water inlet pipe 84 and the water outlet pipe 85 facilitate switching to replace the cooling water and ensure cooling efficiency.

[0033] like Figure 3 and Figure 4 As shown, the heat conducting plate 83 is arranged in an "L" shape and is made of graphite material.

[0034] The “L”-shaped heat conducting plate 83 ensures full contact with the injection cavity in the lower mold 6, while the use of graphite material ensures excellent thermal conductivity and accelerates heat conduction.

[0035] like Figure 2 and Figure 3 As shown, the inner sides of the first installation groove 51 and the second installation groove 61 are both provided with stepped edges respectively matched with the upper ejection plate 73 and the lower ejection plate 75.

[0036] The step edge is provided so that the upper ejector plate 73 and the lower ejector plate 75 are tightly clamped in the interior of the upper mold 5 and the lower mold 6 to ensure tight connection.

[0037] The upper ejector plate 73 and the lower ejector plate 75 are located in corresponding positions.

[0038] By using the upper ejection plate 73 and the lower ejection plate 75 correspondingly arranged above and below, the upper ejection plate 73 and the lower ejection plate 75 are successively controlled to be lifted, thereby facilitating demoulding and collecting the grid member.

[0039] The following is a detailed description of the working principle of the precision automobile grille mold injection molding structure.

[0040] like Figures 1 to 5As shown, when in use, the external water pipe is connected to the water inlet pipe 84 and the water outlet pipe 85, the valve 86 on the water inlet pipe 84 is opened, and the cooling water is pumped through the water inlet pipe 84 and injected into the cooling bottom groove 82, the cooling water enters the cooling bottom groove 82 and fills the lateral cooling groove 81, and the heat conducting plate 83 uses graphite material to contact the injection cavity over a large area to conduct heat to the lateral cooling groove 81 and the cooling bottom groove 82 to exchange heat with the cooling water, thereby performing rapid cooling. After multiple uses, the valve on the water inlet pipe 84 is closed. 86 and opening the valve 86 on the water outlet pipe 85 can draw out the cooling water with higher temperature in the lateral cooling groove 81 and the cooling bottom groove 82 for replacement, and drive the telescopic cylinder 4 to drive the upper mold 5 to move upward so that the upper mold 5 can be separated from the interior of the lower mold 6, and drive the lower ejection cylinder 74 to drive the lower ejection plate 75 to move upward to push the grille member located in the lower mold 6 upward so that it can be separated from the interior of the lower mold 6, and then drive the upper ejection cylinder 71 to drive the upper ejection plate 73 downward to make the grille member separate from the upper mold 5 and the lower mold 6 to prevent adhesion and facilitate removal.

[0041] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A precision automobile grille mold injection molding structure, comprising a base (1), characterized in that: Support rods (2) are fixedly mounted at the four corners of the top of the base (1); a top plate (3) is fixedly mounted at the top of the support rods (2); a telescopic cylinder (4) is fixedly mounted in the middle of the top of the top plate (3); a slide plate located below the top plate (3) is fixedly mounted at the bottom of the telescopic cylinder (4); an upper mold (5) is fixedly mounted at the bottom of the slide plate; a lower mold (6) corresponding to the upper mold (5) is fixedly mounted at the top of the base (1); ejection assemblies are fixedly mounted inside the upper mold (5) and the lower mold (6); and a cooling assembly is fixedly mounted inside the lower mold (6).

2. The precision automobile grille mold injection molding structure according to claim 1, characterized in that: The cooling assembly comprises a lateral cooling groove (81) and a cooling bottom groove (82); the lateral cooling groove (81) is arranged on the inner side of the lower mold (6); the cooling bottom groove (82) is arranged on the inner bottom end of the lower mold (6); the lateral cooling groove (81) and the cooling bottom groove (82) are connected; a heat conducting plate (83) fixedly connected to the lower mold (6) is arranged on the inner side of the lateral cooling groove (81) and the cooling bottom groove (82); and a water inlet pipe (84) and a water outlet pipe (85) are fixedly installed on the right side of the lower mold (6).

3. The precision automobile grille mold injection molding structure according to claim 1, characterized in that: The ejection assembly comprises an upper ejection cylinder (71) and a lower ejection cylinder (74); the upper mold (5) and the lower mold (6) are respectively provided with a first installation groove (51) and a second installation groove (61); the upper ejection cylinder (71) is fixedly installed inside the first installation groove (51); the lower ejection cylinder (74) is fixedly installed inside the second installation groove (61); the outer ends of the upper ejection cylinder (71) and the lower ejection cylinder (74) are fixedly connected to a connecting head (72) located outside the upper mold (5) and the lower mold (6); the bottom end of the upper ejection cylinder (71) is fixedly connected to an upper ejection plate (73) flush with the upper mold (5); the top end of the lower ejection cylinder (74) is fixedly connected to a lower ejection plate (75) flush with the lower mold (6).

4. The precision automobile grille mold injection molding structure according to claim 2, characterized in that: The cooling bottom trough (82) is arranged in a ring shape, and the cooling bottom trough (82) is respectively connected to the water inlet pipe (84) and the water outlet pipe (85).

5. The precision automobile grille mold injection molding structure according to claim 4, characterized in that: Valves (86) are fixedly installed on the outside of the water inlet pipe (84) and the water outlet pipe (85), and quick connectors are arranged on the outside of the water inlet pipe (84) and the water outlet pipe (85).

6. The precision automobile grille mold injection molding structure according to claim 2, characterized in that: The heat conducting plate (83) is arranged in an "L" shape and is made of graphite material.

7. The precision automobile grille mold injection molding structure according to claim 3, characterized in that: The inner sides of the first installation groove (51) and the second installation groove (61) are both provided with stepped edges respectively adapted to the upper ejection plate (73) and the lower ejection plate (75).

8. The precision automobile grille mold injection molding structure according to claim 3 is characterized by: The upper ejection plate (73) and the lower ejection plate (75) are located in corresponding positions.

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