Forming die for automobile interior trim part storage box

Abstract

The utility model provides an automobile interior trim part storage box forming die. The automobile interior trim part storage box forming die comprises an upper die, a lower die and a forming cavity. The utility model relates to the technical field of forming dies. According to the forming die for the storage box of the automotive upholstery, the air exhaust mechanism is arranged, after the upper die and the lower die are assembled, the motor is started to drive the lead screw to rotate, the lead screw rotates, and meanwhile, the moving frame is driven, so that the moving frame reciprocates up and down along the tracks of the sliding block and the sliding groove; the movable frame can drive the drawing rod and the first piston to move in a reciprocating mode, when the first piston moves upwards, negative pressure exists in the air exhaust box at the moment, air in the mold enters the middle box through the exhaust hole and then enters the air exhaust box through the air exhaust pipe, and when the first piston moves downwards, the air in the air exhaust box can be compressed and exhausted from the exhaust pipe. And through sequential circulation, air in the mold is discharged, and it is avoided that bubbles are likely to be generated in the storage box injection molding process.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, specifically to a molding die for an automotive interior parts storage box. Background Technology

[0002] A molding die, also known as a mold, is a mold made according to the shape and structure of a real object. It is a tool used to shape materials into a certain shape by pressing or casting. Molding dies are also used in the processing of automotive interior storage boxes.

[0003] The public disclosure "CN213733070U" discloses a mold for manufacturing automotive interior storage boxes, including a base and a top base. A lower mold is mounted on the base, and an upper mold is positioned directly above the lower mold. A forming cavity is located in the center of the upper mold, and a pre-reserved groove is provided inside the upper mold. An ejector block is embedded in the pre-reserved groove. A positioning strip is formed by a downward protrusion on the bottom surface of the upper mold, and a corresponding positioning groove for the positioning strip is opened on the top surface of the lower mold. A cooling plate is wrapped around the forming cavity, and a semiconductor cooling chip is attached to the outside of the upper mold. During the mold opening process, the upper mold moves upward, which can leave the formed product on the surface of the lower mold. During the upward movement of the upper mold, the ejector block remains stationary, retaining the product and preventing the product from adhering to the forming cavity and moving upward with the upper mold, thus facilitating demolding. The cooling and shaping process is completed within the mold, improving processing efficiency and preventing the finished product from adhering to the forming cavity, facilitating demolding. When the mold is closed, it can ensure a good sealing state of the forming cavity, ensuring molding quality.

[0004] However, the above-mentioned device still has the following problems during implementation:

[0005] Common molds use an upper mold and a lower mold for injection molding. During the connection between the upper and lower molds, air in the mold cavity is squeezed out, but some gas will remain inside the molding mold. Air bubbles are easily generated during the injection molding of automotive interior storage boxes, which affects the quality of processing. Utility Model Content

[0006] The purpose of this utility model is to provide a molding die for an automotive interior parts storage box to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A molding die for an automotive interior parts storage box includes an upper die, a lower die, and a molding cavity. The molding cavity is located at the top of the lower die, and the upper die is located at the top of the lower die. The lower die has a transfer box fixedly connected to one side, the molding cavity has an exhaust port communicating with the transfer box on one side, the transfer box has an extraction box at its top, one side of the extraction box is fixedly connected to one side of the lower die, the other side of the extraction box is fixedly connected to an exhaust pipe, the bottom of the extraction box is fixedly connected to an extraction pipe, the bottom of the extraction pipe is fixedly connected to the top of the transfer box, the extraction box has an extraction mechanism at its top, and the transfer box has an anti-blocking mechanism inside.

[0009] The air extraction mechanism includes a motor fixedly installed on one side of the lower mold. A lead screw is fixedly connected to the output end of the motor. A movable frame is drivenly connected to the surface of the lead screw. A pull rod is fixedly connected to the bottom of the movable frame. The bottom of the pull rod extends through the interior of the air extraction box and is fixedly connected to a first piston.

[0010] Preferably, the anti-blocking mechanism includes a second piston, an embedded post fixedly connected to one side of the second piston for use with an exhaust port, a pull rod fixedly connected to the other side of the second piston, one end of the pull rod extending through to one side of the transfer box and fixedly connected to a pull block, a positioning block fixedly connected to one side of the transfer box, a traction block provided at the top of the positioning block, a positioning rod fixedly connected to the bottom of the traction block, the bottom of the positioning rod extending through to the bottom of the positioning block, and a positioning hole provided at the top of the pull rod for use with the positioning rod.

[0011] Preferably, a tension spring is sleeved on the surface of the positioning rod, the top of the tension spring is fixedly connected to the top of the positioning block, and the top of the tension spring is fixedly connected to the bottom of the traction block.

[0012] Preferably, the number of positioning holes is several, and they are evenly distributed on the top of the pull rod.

[0013] Preferably, the first piston and the second piston are made of rubber.

[0014] Preferably, two sliding blocks are fixedly connected to one side of the movable frame, and a sliding groove that cooperates with the sliding blocks is provided on one side of the lower mold.

[0015] Preferably, a first one-way valve is fixedly installed on the surface of the suction pipe, and a second one-way valve is fixedly connected to the surface of the exhaust pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, by setting up an air extraction mechanism, enables the motor to be started after the upper and lower molds are closed, driving the lead screw to rotate. While the lead screw rotates, it will drive the moving frame, causing the moving frame to move up and down along the trajectory of the sliding block and sliding groove. The moving frame will drive the pull rod and the first piston to move back and forth. When the first piston moves upward, the air extraction box is under negative pressure, and the air in the mold will enter the intermediate packaging box through the exhaust hole, and then enter the air extraction box through the air extraction pipe. When the first piston moves downward, it can compress the air in the air extraction box and discharge it through the exhaust pipe. This cycle is repeated to remove the air in the mold, avoiding the formation of air bubbles during the injection molding of the storage box.

[0018] 2. This utility model, by setting an anti-blocking mechanism, can, after the air extraction mechanism has exhausted the air in the mold, pull the traction block upward to drive the positioning rod away from the positioning hole. Then, push the traction block, which will drive the second piston and the embedded column to move, so that the embedded column enters the vent hole and blocks the vent hole. After releasing the traction block, the tension generated by the tension spring will drive the traction block and the positioning rod downward to drive the positioning rod into the corresponding positioning hole. With the embedded column blocking the vent hole, the raw material will not flow into the vent hole and cause blockage, thus achieving the anti-blocking effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 This is a schematic diagram showing a cross-section of the present invention;

[0022] Figure 4 This is a perspective view of a partial structure of the present invention;

[0023] Figure 5 This is a perspective view of the air extraction mechanism of this utility model;

[0024] Figure 6 This is a perspective view of the anti-blocking mechanism of this utility model.

[0025] In the diagram: 1. Upper mold; 2. Lower mold; 3. Molding cavity; 4. Transfer box; 5. Vent hole; 6. Vacuum box; 7. Vent pipe; 8. Vacuum pipe; 9. Motor; 10. Lead screw; 11. Moving frame; 12. Pull rod; 13. First piston; 14. Second piston; 15. Embedded column; 16. Pull rod; 17. Pull block; 18. Positioning block; 19. Traction block; 20. Positioning rod; 21. Positioning hole; 22. Tension spring; 23. Sliding block; 24. Sliding groove; 25. First one-way valve; 26. Second one-way valve. Detailed Implementation

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please see Figure 1 - Figure 6 This utility model provides a technical solution:

[0028] Example 1:

[0029] A molding die for an automotive interior parts storage box includes an upper mold 1, a lower mold 2, and a molding cavity 3. The molding cavity 3 has an opening at the top of the lower mold 2. The upper mold 1 is located at the top of the lower mold 2. A transfer box 4 is fixedly connected to one side of the lower mold 2. An exhaust hole 5 communicating with the transfer box 4 is opened on one side of the molding cavity 3. An air extraction box 6 is provided at the top of the transfer box 4. One side of the air extraction box 6 is fixedly connected to one side of the lower mold 2. An exhaust pipe 7 is fixedly connected to the other side of the air extraction box 6. An air extraction pipe 8 is fixedly connected to the bottom of the air extraction box 6. The bottom of the air extraction pipe 8 is fixedly connected to the top of the transfer box 4. An air extraction mechanism is provided at the top of the air extraction box 6. An anti-blocking mechanism is provided inside the transfer box 4.

[0030] The air extraction mechanism includes a motor 9 fixedly installed on one side of the lower mold 2. A lead screw 10 is fixedly connected to the output end of the motor 9. A movable frame 11 is connected to the surface of the lead screw 10. A pull rod 12 is fixedly connected to the bottom of the movable frame 11. The bottom of the pull rod 12 extends through the interior of the air extraction box 6 and is fixedly connected to a first piston 13.

[0031] In this embodiment, considering that common molds use an upper mold 1 and a lower mold 2 for injection molding, during the connection process between the upper mold 1 and the lower mold 2, air in the mold cavity is squeezed out. However, some gas remains inside the molding mold, which can easily generate air bubbles during the injection molding of automotive interior storage boxes, affecting the processing quality. Therefore, by setting up an air extraction mechanism, after the upper mold 1 and the lower mold 2 are closed, the motor 9 is started to drive the lead screw 10 to rotate. While the lead screw 10 rotates, it will drive the moving frame 11, causing the moving frame 11 to move. The moving frame 11 moves up and down along the trajectory of the sliding block 23 and the sliding groove 24. The moving frame 11 will drive the pull rod 12 and the first piston 13 to move back and forth. When the first piston 13 moves upward, the vacuum box 6 is under negative pressure. The air in the mold will enter the intermediate box through the exhaust hole 5, and then enter the vacuum box 6 through the vacuum pipe 8. When the first piston 13 moves downward, the air in the vacuum box 6 can be compressed and discharged from the exhaust pipe 7. This cycle is repeated to remove the air in the mold and prevent air bubbles from being generated during the injection molding of the storage box.

[0032] This invention addresses the problem that, in common injection molding processes using an upper mold 1 and a lower mold 2, air is squeezed out of the mold cavity during the connection process, but some gas remains inside the molding die. This leads to air bubbles being generated during the injection molding of automotive interior storage boxes, affecting processing quality.

[0033] Two sliding blocks 23 are fixedly connected to one side of the movable frame 11, and a sliding groove 24 that cooperates with the sliding blocks 23 is provided on one side of the lower mold 2.

[0034] In this embodiment, by setting the sliding block 23 and the sliding groove 24, when the lead screw 10 rotates to transmit power to the moving frame 11, the movement trajectory of the moving frame 11 and other structures is restricted, so that it can only move back and forth up and down along the trajectory of the sliding block 23 and the sliding groove 24.

[0035] A first one-way valve 25 is fixedly installed on the surface of the suction pipe 8, and a second one-way valve 26 is fixedly connected to the surface of the exhaust pipe 7.

[0036] In this embodiment, by setting a first one-way valve 25 and a second one-way valve 26, when the inside of the vacuum box 6 is under negative pressure, the air in the mold can enter the vacuum box 6 through the vacuum pipe 8. When the first piston 13 compresses the air in the vacuum box 6, the gas will be discharged through the exhaust pipe 7.

[0037] Example 2:

[0038] Based on Embodiment 1, the air extraction mechanism in this embodiment can discharge the air in the mold through the exhaust hole 5. However, considering that the raw material will also flow into the exhaust hole 5 when it is injected into the molding cavity 3, which may easily cause blockage, the anti-blocking mechanism in this application includes a second piston 14. An embedded post 15 that works with the exhaust hole 5 is fixedly connected to one side of the second piston 14. A pull rod 16 is fixedly connected to the other side of the second piston 14. One end of the pull rod 16 extends through to one side of the transfer box 4 and is fixedly connected to a pull block 17. A positioning block 18 is fixedly connected to one side of the transfer box 4. A traction block 19 is provided on the top of the positioning block 18. A positioning rod 20 is fixedly connected to the bottom of the traction block 19. The bottom of the positioning rod 20 extends through to the bottom of the positioning block 18. A positioning hole 21 that works with the positioning rod 20 is opened on the top of the pull rod 16.

[0039] In this embodiment, by setting an anti-blocking mechanism, after the air extraction mechanism has exhausted the air in the mold, the traction block 19 is pulled upward to drive the positioning rod 20 away from the positioning hole 21. Then, the traction block 17 is pushed, which will drive the second piston 14 and the embedded column 15 to move, so that the embedded column 15 enters the exhaust hole 5 and blocks the exhaust hole 5. Then, the traction block 19 is released, and the tension generated by the tension spring 22 will drive the traction block 19 and the positioning rod 20 downward to drive the positioning rod 20 into the corresponding positioning hole 21. With the embedded column 15 blocking the exhaust hole 5, the raw material will not flow into the exhaust hole 5 and cause blockage, thus achieving the anti-blocking effect.

[0040] This solves the problem that when raw materials are injected into the molding cavity 3, they may also flow into the vent hole 5, which could easily cause blockage.

[0041] It should be noted that when air extraction is required, the steps are reversed, simply move the embedded column away from the exhaust port 5.

[0042] A tension spring 22 is fitted on the surface of the positioning rod 20. The top of the tension spring 22 is fixedly connected to the top of the positioning block 18, and the top of the tension spring 22 is fixedly connected to the bottom of the traction block 19.

[0043] In this embodiment, by setting a tension spring 22, when the traction block 19 is released, the tension force generated by the tension spring 22 can drive the traction block 19 and the positioning rod 20 to move downward, thereby achieving the function of resetting.

[0044] The number of positioning holes 21 is several, and they are evenly distributed on the top of the pull rod 16.

[0045] In this embodiment, by setting a number of positioning holes 21, the position of the pull rod 16 can be adjusted, and the positioning rod 20 can be inserted into the corresponding positioning hole 21, so that the structure such as the pull rod 16 can be quickly positioned.

[0046] The first piston 13 and the second piston 14 are made of rubber.

[0047] In this embodiment, by making the first piston 13 and the second piston 14 rubber, a sealed cavity can be formed inside the vacuum box 6 and the transfer box 4 to facilitate the transmission of gases.

[0048] Working principle: After the upper mold 1 and lower mold 2 are closed, the motor 9 is started to drive the lead screw 10 to rotate. While the lead screw 10 is rotating, it will drive the moving frame 11 to move up and down along the trajectory of the sliding block 23 and the sliding groove 24. The moving frame 11 will drive the pull rod 12 and the first piston 13 to move back and forth. When the first piston 13 moves upward, the air box 6 is under negative pressure. The air in the mold will enter the intermediate box through the exhaust hole 5, and then enter the air box 6 through the air extraction pipe 8. When the first piston 13 moves downward, it can compress the air in the air box 6 and discharge it through the exhaust pipe 7. This cycle is repeated to remove the air in the mold and prevent air bubbles from being generated during the injection molding of the storage box.

[0049] After the air extraction mechanism removes all the air from the mold, the traction block 19 is pulled upwards, causing the positioning rod 20 to leave the positioning hole 21. Then, the pulling block 17 is pushed, which in turn moves the second piston 14 and the embedded post 15, causing the embedded post 15 to enter the vent hole 5 and block it. After releasing the traction block 19, the tension force generated by the tension spring 22 causes the traction block 19 and the positioning rod 20 to move downwards, causing the positioning rod 20 to enter the corresponding positioning hole 21. With the embedded post 15 blocking the vent hole 5, the raw material will not flow into the vent hole 5 and cause blockage, thus achieving the anti-blocking effect.

[0050] It should be noted that the motor 9 is a device or equipment existing in the prior art, or a device or equipment that can be implemented by the prior art, and the specific composition and principle of the power supply of the motor 9 are clear to those skilled in the art, so they will not be described in detail.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molding die for an automotive interior parts storage box, comprising an upper die (1), a lower die (2), and a molding cavity (3), wherein the molding cavity (3) is provided at the top of the lower die (2), and the upper die (1) is located at the top of the lower die (2), characterized in that: A transfer box (4) is fixedly connected to one side of the lower mold (2). An exhaust hole (5) connected to the transfer box (4) is opened on one side of the molding cavity (3). An air extraction box (6) is provided on the top of the transfer box (4). One side of the air extraction box (6) is fixedly connected to one side of the lower mold (2). An exhaust pipe (7) is fixedly connected to the other side of the air extraction box (6). An air extraction pipe (8) is fixedly connected to the bottom of the air extraction box (6). The bottom of the air extraction pipe (8) is fixedly connected to the top of the transfer box (4). An air extraction mechanism is provided on the top of the air extraction box (6). An anti-blocking mechanism is provided inside the transfer box (4). The air extraction mechanism includes a motor (9) fixedly installed on one side of the lower mold (2). The output end of the motor (9) is fixedly connected to a lead screw (10). The surface of the lead screw (10) is connected to a moving frame (11). The bottom of the moving frame (11) is fixedly connected to a pull rod (12). The bottom of the pull rod (12) extends through the interior of the air extraction box (6) and is fixedly connected to a first piston (13).

2. The molding die for an automotive interior parts storage box according to claim 1, characterized in that: The anti-blocking mechanism includes a second piston (14), an embedded post (15) for use with an exhaust port (5) fixedly connected to one side of the second piston (14), a pull rod (16) fixedly connected to the other side of the second piston (14), one end of the pull rod (16) penetrating to one side of the transfer box (4) and fixedly connected to a pull block (17), a positioning block (18) fixedly connected to one side of the transfer box (4), a traction block (19) provided on the top of the positioning block (18), a positioning rod (20) fixedly connected to the bottom of the traction block (19), the bottom of the positioning rod (20) penetrating to the bottom of the positioning block (18), and a positioning hole (21) for use with the positioning rod (20) opened on the top of the pull rod (16).

3. The molding die for an automotive interior parts storage box according to claim 2, characterized in that: A tension spring (22) is sleeved on the surface of the positioning rod (20). The top of the tension spring (22) is fixedly connected to the top of the positioning block (18), and the top of the tension spring (22) is fixedly connected to the bottom of the traction block (19).

4. The molding die for an automotive interior parts storage box according to claim 2, characterized in that: The number of positioning holes (21) is several, and they are evenly distributed on the top of the pull rod (16).

5. The molding die for an automotive interior parts storage box according to claim 2, characterized in that: The first piston (13) and the second piston (14) are made of rubber.

6. The molding die for an automotive interior parts storage box according to claim 1, characterized in that: Two sliding blocks (23) are fixedly connected to one side of the movable frame (11), and a sliding groove (24) that cooperates with the sliding blocks (23) is provided on one side of the lower mold (2).

7. The molding die for an automotive interior parts storage box according to claim 1, characterized in that: A first check valve (25) is fixedly installed on the surface of the suction pipe (8), and a second check valve (26) is fixedly connected to the surface of the exhaust pipe (7).

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