Injection mold for automobile storage box

Abstract

The utility model relates to the technical field of automobile storage box production, in particular to an injection mold for an automobile storage box, which comprises a first mold and a second mold which are oppositely arranged, a forming die cavity is formed in the top of the first die, at least two strip-shaped grooves arranged at intervals are formed in the side face of the forming die cavity, and the tops of the strip-shaped grooves penetrate through the top of the first die; a first cavity is formed in the bottom of the first mold, first push plates are arranged in the forming mold cavity, the edges of the first push plates are in clearance fit with the inner wall of the forming mold cavity, and the positions, close to the strip-shaped grooves, of the first push plates are all arranged in the strip-shaped grooves and are in clearance fit with the strip-shaped grooves. When the injection mold for the automobile storage box is used, through stretching of the two groups of compression springs during mold closing, elastic force can act on the two groups of push plates during mold opening, so that an injection molding part is pushed, the injection molding part is prevented from being clamped or embedded in the mold, and complete demolding and discharging of the injection molding part are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile storage box production, in particular to an injection mold for an automobile storage box. Background Art

[0002] A car storage box is a box placed in a car for storing items. Common car storage boxes are mostly square plastic boxes with leather or cloth wrapped on the surface. Therefore, car storage boxes are mostly produced by injecting molten plastic into an injection mold using an injection molding machine.

[0003] However, due to the box shape of the existing injection mold for the automobile storage box, when the injection mold is opened, the automobile storage box injection molded part will be stuck in the concave mold or on the convex mold due to its own concave, which makes it inconvenient to take out the automobile storage box injection molded part. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an injection mold for a car storage box.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: designing an injection mold for a car storage box, comprising a first mold and a second mold, the first mold and the second mold being arranged opposite to each other;

[0006] A molding cavity is formed on the top of the first mold, and at least two strip grooves arranged at intervals are formed on the side of the molding cavity, and the top of the strip groove passes through the top of the first mold;

[0007] A first cavity is opened at the bottom of the first mold, and a first push plate is arranged in the molding cavity. The edge of the first push plate is gap-matched with the inner wall of the molding cavity, and the first push plate near the strip groove is placed in the strip groove and gap-matched with the strip groove.

[0008] At least one first guide shaft is vertically installed at the bottom of the first push plate, the first guide shaft slides through the bottom of the first mold and is installed with a first limit plate, and a first compression spring is sleeved on the first guide shaft, one end of the first compression spring is fixed to the top of the first cavity, and the other end of the first compression spring is fixed to the first limit plate;

[0009] A second cavity is opened at the top of the second mold, and a molding punch corresponding to the molding cavity is installed on the other side of the second mold. A strip plate is provided in parallel on the side of the molding punch, the strip plate corresponds to the strip groove, and the bottom of the strip plate corresponds to the edge of the first push plate. A second push plate is provided at the corner of the molding punch, and the inner side of the second push plate is gap-matched with the outer wall of the molding punch. At least one second guide shaft is vertically installed on the top of the second push plate, and the other end of the second guide shaft slides through the second mold and is installed with a second limit plate. A second compression spring is sleeved on the second guide shaft, one end of the second compression spring is fixed to the bottom of the second cavity, and the other end of the second compression spring is fixed to the second limit plate.

[0010] Preferably, a first skirt is installed at the bottom edge of the first mold, a second skirt is installed at the top edge of the second mold, and a plurality of first through holes arranged at intervals are opened along the edge of the second skirt;

[0011] An injection port is provided on a side of the second mold away from the first mold, and the injection port penetrates the molding convex mold.

[0012] Preferably, a support tube is vertically installed at the top corner of the first skirt, and a second through hole corresponding to the inner cavity of the support tube is also opened on the first skirt. The second through hole passes through the first skirt, and a support rod is accommodated inside the top of the support tube, and the top of the support rod is fixed to the second skirt.

[0013] Preferably, a connecting seat is installed at the top center of the first cavity.

[0014] Preferably, a receiving groove is provided at a bottom corner of the second mold, and the receiving groove corresponds to the second push plate.

[0015] Preferably, a cooling cavity is opened along the inner side of the first mold, and a liquid inlet valve and a liquid outlet valve are installed on the outer wall of the first mold, and the liquid inlet valve and the liquid outlet valve are both connected to the cooling cavity.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] 1. The injection mold for the automobile storage box has a corresponding strip plate and a strip groove, and a second push plate placed at the edge. After the two molds are merged, the strip plate will push the first push plate to be placed at the bottom of the molding cavity, and the second push plate will be pressed against the bottom of the second mold under the push of the first mold, and the compression spring will generate elastic potential energy. After the two molds are opened, the injection molded parts of the automobile storage box can be pushed, so that the injection molded parts of the automobile storage box can be separated from the two molds, so that the injection molded parts of the automobile storage box can be demolded from the mold.

[0018] 2. The injection mold for the automobile storage box guides the mold closing process between the two molds by sliding the support rod in the support tube, so as to improve the stability during the mold closing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 This is a bottom structural diagram of the second mold of the utility model;

[0022] Figure 4 It is a side cross-sectional view of the utility model;

[0023] Figure 5 This is a rendering of the use of the utility model.

[0024] In the figure: 1. first mold; 2. molding cavity; 3. strip groove; 4. first push plate; 5. first cavity; 6. first guide shaft; 7. first limit plate; 8. first compression spring; 9. first skirt; 10. second mold; 11. second skirt; 12. first through hole; 13. support rod; 14. support tube; 15. second through hole; 16. second cavity; 17. molding punch; 18. strip plate; 19. accommodating groove; 20. second push plate; 21. second guide shaft; 22. second limit plate; 23. second compression spring; 24. injection port; 25. cooling cavity; 26. connecting seat. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Reference Figure 1-Figure 5 An injection mold for a car storage box includes a first mold 1 and a second mold 10. The first mold 1 and the second mold 10 are arranged opposite to each other. A molding cavity 2 is opened at the top of the first mold 1. A molding convex mold 17 corresponding to the molding cavity 2 is installed on the other side of the second mold 10. An injection port 24 is opened on the side of the second mold 10 away from the first mold 1. The injection port 24 penetrates the molding convex mold 17. When the first mold 1 and the second mold 10 are closed, molten plastic can be poured in from the injection port 24 to allow the molten plastic to form a desired car storage box injection molded part between the molding cavity 2 and the molding convex mold 17.

[0027] like Figure 1 and Figure 2 As shown, a first skirt 9 is installed at the bottom edge of the first mold 1, a second skirt 11 is installed at the top edge of the second mold 10, and a plurality of first through holes 12 arranged at intervals are opened along the edge of the second skirt 11, a support tube 14 is vertically installed at the top corner of the first skirt 9, and a second through hole 15 corresponding to the inner cavity of the support tube 14 is also opened on the first skirt 9, and the second through hole 15 passes through the first skirt 9, and a support rod 13 is accommodated inside the top of the support tube 14, and the top of the support rod 13 is fixed to the second skirt 11. When the mold is closed or opened, the movement between the two molds will drive the support rod 13 to slide in the support tube 14, thereby providing a guiding effect on the mold closing and opening processes and improving the stability of the mold opening and closing movements;

[0028] It should be noted that a first cavity 5 is provided at the bottom of the first mold 1, and a connecting seat 26 is installed at the top center of the first cavity 5. In actual use, the second mold 10 can be fixed to an injection molding machine (such as a mold body) by bolts through the first through hole 12 on the second skirt 11. Figure 5 The discharge port is connected to the injection port 24, and the first mold 1 is connected to the linear drive module (such as Figure 5 The first mold 1 can be close to or away from the second mold 10 under the action of the linear drive module, thereby completing the mold closing or mold opening operation. After the mold closing, the injection molding machine injects the molten plastic into the molding cavity 2 for molding. After the injection molding is completed, a cooling cavity 25 is opened along the side of the first mold 1, and a liquid inlet valve and a liquid outlet valve are installed on the outer wall of the first mold 1. The liquid inlet valve and the liquid outlet valve are connected to the cooling cavity 25. The coolant will enter the cooling cavity 25 through the liquid inlet valve to cool the plastic in the molding cavity 2, thereby forming it. Then the linear drive module pulls the first mold 1 to open the mold; and the injection mold can be installed as Figure 5 As shown in the figure, the molded parts can be set horizontally so that the molded parts can fall directly from the bottom after the mold is opened for discharge, and a conveying mechanism can be set below the mold opening position for the transfer and collection of the injection molded parts.

[0029] Among them, the linear drive module is one of a hydraulic cylinder and an electric push rod.

[0030] like Figure 1 As shown, at least two strip grooves 3 arranged at intervals are opened on the side of the molding cavity 2, and the top of the strip groove 3 passes through the top of the first mold 1; a first push plate 4 is arranged in the molding cavity 2, and the edge of the first push plate 4 is gap-matched with the inner wall of the molding cavity 2, and the first push plate 4 is placed in the strip groove 3 near the strip groove 3 and gap-matched with the strip groove 3; Figure 2 and Figure 4 As shown, at least one first guide shaft 6 is vertically installed at the bottom of the first push plate 4, and the first guide shaft 6 slides through the bottom of the first mold 1 and is installed with a first limit plate 7, and a first compression spring 8 is sleeved on the first guide shaft 6, one end of the first compression spring 8 is fixed to the top of the first cavity 5, and the other end of the first compression spring 8 is fixed to the first limit plate 7, and a strip plate 18 is parallelly provided on the side of the forming punch 17, and the strip plate 18 corresponds to the strip groove 3, and the bottom of the strip plate 18 corresponds to the edge of the first push plate 4. When the mold is closed, the strip plate 18 will be placed in the strip groove 3, and as the two When the two molds are close to each other, the strip plate 18 will abut against the first push plate 4 and push the first push plate 4 to make the first push plate 4 close to the bottom of the molding cavity 2, and as the first push plate 4 moves, the first guide shaft 6 slides toward the first cavity 5 away from the first mold 1, so that the first compression spring 8 is stretched and an elastic force is generated through the first guide shaft 6 to act on the first push plate 4. When the mold is opened, the first push plate 4 loses the pressure of the strip plate 18, and the first push plate 4 moves toward the second mold 10 along with the mold opening process, so that the automobile storage box injection molded part placed in the molding cavity 2 can be pushed out.

[0031] like Figure 3 and Figure 4 As shown, a second cavity 16 is provided at the top of the second mold 10, and a second push plate 20 is provided at the corner of the forming punch 17. The inner side of the second push plate 20 is clearance-matched with the outer wall of the forming punch 17. At least one second guide shaft 21 is vertically installed on the top of the second push plate 20. The other end of the second guide shaft 21 slides through the second mold 10 and is installed with a second limit plate 22. A second compression spring 23 is sleeved on the second guide shaft 21. One end of the second compression spring 23 is fixed to the bottom of the second cavity 16, and the other end of the second compression spring 23 is fixed to the second limit plate 2 2, consistent with the first push plate 4, when the mold is closed, the second push plate 20 will contact the upper edge of the first mold 1, and with the mold closing process, the second push plate 20 will continue to move and abut against the bottom of the second mold 10, and stretch the second compression spring 23 to generate elastic force. When the mold is opened, the elastic force of the second compression spring 23 will react on the second push plate 20 to push out the automobile storage box injection molded part stuck on the molding punch 17. Combined with the action of the first push plate 4, the molded automobile storage box injection molded part can be completely demolded from the two molds, which is convenient for the discharge of the injection molded parts and the subsequent collection.

[0032] Furthermore, a receiving groove 19 is opened at the bottom corner of the second mold 10, and the receiving groove 19 corresponds to the second push plate 20. When the two molds are closed, the second push plate 20 will be placed in the receiving groove 19, so that the contact surface between the two molds can be completely fitted to prevent leakage and the like from being caused by a gap between the two molds, which affects the injection molding process of the injection molded parts.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for a car storage box, characterized in that: It comprises a first mold (1) and a second mold (10), wherein the first mold (1) and the second mold (10) are arranged opposite to each other; A molding cavity (2) is provided at the top of the first mold (1), and at least two strip grooves (3) arranged at intervals are provided on the side of the molding cavity (2), and the top of the strip groove (3) passes through the top of the first mold (1); A first cavity (5) is provided at the bottom of the first mold (1), and a first push plate (4) is provided in the molding cavity (2). The edge of the first push plate (4) is clearance-matched with the inner wall of the molding cavity (2), and the first push plate (4) is placed in the strip groove (3) near the strip groove (3) and is clearance-matched with the strip groove (3); At least one first guide shaft (6) is vertically installed at the bottom of the first push plate (4), and a first limit plate (7) is installed on the first guide shaft (6) which slides through the bottom of the first mold (1), and a first compression spring (8) is sleeved on the first guide shaft (6), one end of the first compression spring (8) is fixed to the top of the first cavity (5), and the other end of the first compression spring (8) is fixed to the first limit plate (7); A second cavity (16) is provided at the top of the second mold (10), a molding convex mold (17) corresponding to the molding cavity (2) is installed on the other side of the second mold (10), a strip plate (18) is provided in parallel on the side of the molding convex mold (17), the strip plate (18) corresponds to the strip groove (3), and the bottom of the strip plate (18) corresponds to the edge of the first push plate (4), a second push plate (20) is provided at the corner of the molding convex mold (17), and the inner side of the second push plate (20) is in contact with the molding cavity (2). The outer wall of the punch (17) is clearance-matched, and at least one second guide shaft (21) is vertically installed on the top of the second push plate (20). The other end of the second guide shaft (21) slides through the second mold (10) and is installed with a second limit plate (22). A second compression spring (23) is sleeved on the second guide shaft (21), one end of the second compression spring (23) is fixed on the bottom of the second cavity (16), and the other end of the second compression spring (23) is fixed on the second limit plate (22).

2. The injection mold for a car storage box according to claim 1, characterized in that: A first skirt (9) is installed at the bottom edge of the first mold (1), a second skirt (11) is installed at the top edge of the second mold (10), and a plurality of first through holes (12) arranged at intervals are opened along the edge of the second skirt (11); An injection port (24) is provided on a side of the second mold (10) away from the first mold (1), and the injection port (24) penetrates the molding convex mold (17).

3. The injection mold for a car storage box according to claim 1, characterized in that: A support tube (14) is vertically installed at the top corner of the first skirt (9), and a second through hole (15) corresponding to the inner cavity of the support tube (14) is also opened on the first skirt (9). The second through hole (15) passes through the first skirt (9). A support rod (13) is accommodated inside the top of the support tube (14), and the top of the support rod (13) is fixed to the second skirt (11).

4. The injection mold for a car storage box according to claim 1, characterized in that: A connecting seat (26) is installed at the top center of the first cavity (5).

5. The injection mold for a car storage box according to claim 1, characterized in that: A receiving groove (19) is provided at a bottom corner of the second mold (10), and the receiving groove (19) corresponds to the second push plate (20).

6. The injection mold for a car storage box according to claim 1, characterized in that: A cooling cavity (25) is provided along the inner side of the first mold (1), and a liquid inlet valve and a liquid outlet valve are installed on the outer wall of the first mold (1), and both the liquid inlet valve and the liquid outlet valve are connected to the cooling cavity (25).

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