Safety air bag mold convenient to demold

Abstract

The utility model discloses a safety air bag mold convenient to demold. The safety air bag mold comprises a mold base, a fixed mold bottom plate and a guide column, a mold foot is arranged at the top of the mold base, a movable mold core is arranged at the top of the mold foot, and a product is arranged on the surface of the movable mold core; a locking wedge is arranged on the surface of the fixed mold bottom plate, and a cooling pipe is arranged in the fixed mold bottom plate; when the straight ejection body starts, the bottom plate body and the shifting block base are used in cooperation to drive the shifting block rod to move upwards, the shifting block rod can move in a vertical state all the time when moving upwards due to the arrangement of the guide block, the straight ejection body is driven by the shifting block rod to move upwards, the straight ejection body ejects a product, and the product quality is improved. The square tops are matched for use, so that the product can be demoulded more easily; and the shifting block rod and the straight ejection body start to act laterally, the distance of the action is D, the stroke of the D is completed along with continuous ejection, the core pulling action can be completed, and the product is continuously ejected.

Description

Technical Field

[0001] The utility model relates to the technical field of airbag moulds, in particular to a safety airbag mould which is easy to demould. Background Art

[0002] The airbag is mainly composed of airbag sensors, anti-collision airbags and electronic control devices. The airbag system is a passive safety protection system. It is used in conjunction with seat belts to provide effective anti-collision protection for passengers. When a car collides, the car airbag can reduce the head injury rate by 25% and the facial injury rate by about 80%. The airbag is connected to the car through a connecting plug.

[0003] In the prior art, existing automotive airbag injection molds require the upper and lower mold bodies to be separated after the injection molding process. However, due to molding factors, the molded parts often adhere to the lower mold body. Since most current automotive airbag injection molds do not have an effective automatic ejection device for the injection molded parts, workers need to manually remove the molded parts after the upper and lower mold bodies are separated. This not only increases the labor intensity and labor time of workers, but also reduces work efficiency. In addition, manual removal can cause certain damage to the injection molded parts, affecting the injection molding quality of the injection molded parts and causing great inconvenience in actual use. In view of this, we have introduced an airbag mold that is easy to demold. Utility Model Content

[0004] The purpose of the utility model is to provide an airbag mold that is easy to demould, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airbag mold that is easy to demould, comprising: a mold base, a fixed mold bottom plate and a guide column;

[0006] A mold foot is provided on the top of the mold base, a movable mold core is provided on the top of the mold foot, and a product is provided on the surface of the movable mold core;

[0007] The surface of the fixed mold base plate is provided with a locking wedge, which is detachably arranged between the locking wedge and the fixed mold base plate. A cooling pipe is provided inside the fixed mold base plate, and the cooling pipe is used to reduce the temperature inside the fixed mold base plate;

[0008] The guide pins are arranged at the four corners of the top of the mold foot, and guide pin grooves for inserting the guide pins are opened at the four corners of the surface of the fixed mold base. The guide pin grooves and the fixed mold base are integrally formed. The guide pin grooves allow the guide pins to move inside to limit the movement of the mold foot and the mold base.

[0009] A top mold mechanism is provided inside the mold foot, and the push block rod of the top mold mechanism drives the top body and the product to move upward, so that the product is separated from the inside of the mold foot.

[0010] Preferably, the top mold mechanism includes a shift block base connected to the bottom of the shift block rod, the shift block base and the shift block rod are fixedly arranged, the bottom of the shift block base is connected to a bottom plate body, the shift block rod is arranged inside the mold foot, the top of the shift block rod is connected to a straight top body, the shift block rod and the straight top body are fixedly arranged, the straight top body is connected to the bottom of the product, and a guide block is provided on the surface of the shift block rod, and the guide block is used to limit the movement of the shift block rod.

[0011] Preferably, a slanted top base guide block is provided inside the mold foot, a square top is provided on the top of the slanted top base guide block, the slanted top base guide block and the square top are fixedly connected, a slanted top body is provided on the top of the square top, the slanted top body is connected to the bottom of the product, and the setting of the slanted top body can eject the product.

[0012] Preferably, a delayed ejection limit column is connected to the center of the bottom of the inclined top body, the bottom of the inclined top body is connected to the inclined top rod body, the surface of the inclined top rod body is connected to the inclined top rod guide block, and the inclined top rod guide block and the inclined top rod body are fixedly connected.

[0013] Preferably, the bottom of the straight-top body is connected to a cooling water pipe, the surface of the cooling water pipe is connected to a cooling joint, and the cooling joint and the cooling water pipe are threadedly connected.

[0014] Preferably, the surface of the mold foot is connected to a return rod, the interior of the mold foot is connected to a flow channel, the side of the mold foot is connected to a cooling water joint, the surface of the fixed mold bottom plate is connected to a cooling pipe, and the cooling pipe is connected to the cooling water joint.

[0015] Preferably, a hot runner control box is connected to the side of the fixed mold base plate, and a gap sensor is connected to the side of the mold foot, and the gap sensor is used to control the gap between the fixed mold base plate and the mold base.

[0016] Preferably, the surface of the mold foot is connected with a lifting screw, and the side of the mold foot is connected with a dustproof plate, and the setting of the dustproof plate can block external dust.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: at the beginning of the straight top body, the bottom plate body and the shift block base cooperate to drive the shift block rod to move upward, and the setting of the guide block allows the shift block rod to always move in a vertical state when moving upward, so that the straight top body is driven to move upward by the shift block rod, so that the straight top body can lift the product, and the cooperation of the square top and the square top can make the product more convenient to demould, and the core pulling action can be completed after reaching a certain position;

[0018] At the beginning, the whole part is ejected together. After the ejection distance reaches L1, the push block rod and the straight ejector body start to move sideways. The distance of this movement is D, D = thickness of the product window + 2mm safety distance. As the ejection continues, the stroke of D is completed, and the core pulling action is completed. Then the product continues to be ejected and L2 is completed. The ejection of the entire mold is completed and the product is completely taken out. And: L = L1 + L2. The movement can only start after the mold core is moved after the product is detached. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a structural diagram of the fixed mold base plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the straight top body, the shift block rod and the guide block when they are connected;

[0022] Figure 4 This is a structural diagram of the utility model when the inclined roof body, square roof and inclined roof base guide block are connected;

[0023] Figure 5 This is a structural diagram of the guide block moving stroke of the utility model.

[0024] In the figure: 1. Mold base; 2. Dustproof plate; 3. Mold foot; 4. Cooling water connector; 5. Gap sensor; 6. Guide column; 7. Product; 8. Moving mold core; 9. Lifting eye screw; 10. Return rod; 11. Runner; 12. Fixed mold base; 13. Guide column groove; 14. Hot runner control box; 15. Locking wedge; 16. Cooling pipe; 17. Cooling pipe; 18. Straight ejector body; 19. Shift block rod; 20. Guide block; 21. Shift block base; 22. Cooling water pipe; 23. Cooling connector; 24. Base body; 25. Slanted ejector body; 26. Square ejector; 27. Slanted ejector rod guide block; 28. Slanted ejector rod body; 29. ​​Slanted ejector base guide block; 30. Delayed ejection limit column. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-5 The utility model provides a technical solution: an airbag mold that is easy to demould, comprising: a mold base 1, a mold foot 3 is provided on the top of the mold base 1, a movable mold core 8 is provided on the top of the mold foot 3, and a product 7 is provided on the surface of the movable mold core 8;

[0027] A fixed mold base plate 12, wherein a locking wedge 15 is provided on the surface of the fixed mold base plate 12, and a cooling pipe 16 is provided inside the fixed mold base plate 12;

[0028] Guide pillars 6 are arranged at the four corners of the top of the mold foot 3, and guide pillar grooves 13 for inserting the guide pillars 6 are opened at the four corners of the surface of the fixed mold bottom plate 12;

[0029] A top mold mechanism is provided inside the mold foot 3 , and the push block rod 19 of the top mold mechanism drives the top body 18 and the product 7 to move upward, so that the product 7 is separated from the inside of the mold foot 3 .

[0030] The top mold mechanism includes a shift block base 21 connected to the bottom of the shift block rod 19, and the shift block base 21 and the shift block rod 19 are fixedly arranged. The bottom of the shift block base 21 is connected to the bottom of the bottom plate body 24, and the shift block rod 19 is arranged inside the mold foot 3. The top of the shift block rod 19 is connected to the straight top body 18, and the shift block rod 19 and the straight top body 18 are fixedly arranged. The straight top body 18 is connected to the bottom of the product 7. The surface of the shift block rod 19 is provided with a guide block 20, and the guide block 20 is used to limit the movement of the shift block rod 19.

[0031] The interior of the mold foot 3 is provided with a slanted top base guide block 29, and the top of the slanted top base guide block 29 is provided with a square top 26. The slanted top base guide block 29 and the square top 26 are fixedly connected. The top of the square top 26 is provided with a slanted top body 25, and the slanted top body 25 is connected to the bottom of the product 7. The setting of the slanted top body 25 can eject the product 7.

[0032] A delayed ejection limit column 30 is connected to the center of the bottom of the inclined top body 25, and a inclined top rod body 28 is connected to the bottom of the inclined top body 25. The surface of the inclined top rod body 28 is connected to a inclined top rod guide block 27, and the inclined top rod guide block 27 and the inclined top rod body 28 are fixedly connected.

[0033] A cooling water pipe 22 is connected to the bottom of the straight top body 18 , and a cooling joint 23 is connected to the surface of the cooling water pipe 22 . The cooling joint 23 and the cooling water pipe 22 are screwed together.

[0034] The surface of the mold foot 3 is connected to a return rod 10, the interior of the mold foot 3 is connected to a flow channel 11, the side of the mold foot 3 is connected to a cooling water joint 4, and the surface of the fixed mold base plate 12 is connected to a cooling pipe 17, which is connected to the cooling water joint 4.

[0035] The side of the fixed mold base plate 12 is connected to a hot runner control box 14 , and the side of the mold foot 3 is connected to a gap sensor 5 , which is used to control the gap between the fixed mold base plate 12 and the mold base 1 .

[0036] The surface of the mold foot 3 is connected with a lifting screw 9, and the side of the mold foot 3 is connected with a dustproof plate 2. The setting of the dustproof plate 2 can block external dust.

[0037] Specifically, when in use, both sides of the product 7 have shapes that require side core-pulling mechanisms. The core-pulling directions on the left and right sides are relative, and there is a possibility of interference, so the core-pulling mechanisms on the left and right sides need to be designed differently;

[0038] In a conventional ejector mechanism, the inclined ejector body 25 and the straight ejector body 18 are used in conjunction with each other to prevent the product 7 from running along with the inclined ejector, that is, to prevent the product from sticking to the inclined ejector.

[0039] At the beginning, the straight top body 18 cooperates with the bottom plate body 24 and the shift block base 21 to drive the shift block rod 19 to move upward. The setting of the guide block 20 allows the shift block rod 19 to always move in a vertical state when moving upward, so that the straight top body 18 is driven to move upward by the shift block rod 19, allowing the straight top body 18 to lift the product 7. The cooperation of the square top 26 and the square top 26 makes it easier for the product 7 to be demoulded, and the core pulling action can be completed after it reaches a certain position.

[0040] At the beginning, the whole part is ejected together. After the ejection distance reaches L1, the shifting block rod 19 and the straight ejector body 18 start to move sideways. The distance of this movement is D (D = thickness of the product 7 window + 2mm safety distance). As the ejection continues, the stroke of D is completed, and the core pulling action is completed. Then the product 7 continues to be ejected and L2 is completed. The entire mold is ejected and the product 7 is completely taken out. However, L = L1 + L2. The action can only be started after the mold core 8 is moved after the product 7 is detached (L1 is too large, and the inclined ejector body 25 has been mostly or even completely detached from the product 7. The ejection stroke is almost completed. At this time, if a lateral force is applied to push open the window, due to the lack of the reaction force of the right inclined ejector body 25, the entire product 7 may be flipped, which is not conducive to detaching the window. This will make it difficult for the product 7 to be ejected, or even if it is ejected, there will be bulging on the surface of the product 7 after ejection).

[0041] 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. An airbag mold that is easy to demould, characterized in that: include: A mold base (1), wherein a mold foot (3) is provided on the top of the mold base (1), a movable mold core (8) is provided on the top of the mold foot (3), and a product (7) is provided on the surface of the movable mold core (8); A fixed mold base plate (12), wherein a locking wedge (15) is provided on the surface of the fixed mold base plate (12), and a cooling pipe (16) is provided inside the fixed mold base plate (12); Guide pillars (6), the guide pillars (6) are arranged at the four corners of the top of the mold foot (3), and guide pillar grooves (13) for inserting the guide pillars (6) are opened at the four corners of the surface of the fixed mold bottom plate (12); A top mold mechanism is provided inside the mold foot (3), and a push rod (19) of the top mold mechanism drives the top body (18) and the product (7) to move upward, so that the product (7) is separated from the inside of the mold foot (3).

2. The airbag mold that is easy to demould according to claim 1, characterized in that: The top mold mechanism comprises a shift block base (21) connected to the bottom of a shift block rod (19); the bottom of the shift block base (21) is connected to a bottom plate body (24); the shift block rod (19) is arranged inside the mold foot (3); the top of the shift block rod (19) is connected to a straight top body (18); the straight top body (18) is connected to the bottom of the product (7); and a guide block (20) is provided on the surface of the shift block rod (19).

3. The airbag mold that is easy to demould according to claim 1, characterized in that: A slanted top base guide block (29) is provided inside the mold foot (3), a square top (26) is provided on the top of the slanted top base guide block (29), a slanted top body (25) is provided on the top of the square top (26), and the slanted top body (25) is connected to the bottom of the product (7).

4. The airbag mold that is easy to demould according to claim 3, characterized in that: A delayed ejection limiting column (30) is connected to the center of the bottom of the inclined top body (25), a inclined top rod body (28) is connected to the bottom of the inclined top body (25), and a inclined top rod guide block (27) is connected to the surface of the inclined top rod body (28).

5. The airbag mold that is easy to demould according to claim 2, characterized in that: The bottom of the straight top body (18) is connected to a cooling water pipe (22), and the surface of the cooling water pipe (22) is connected to a cooling joint (23).

6. The airbag mold that is easy to demould according to claim 1, characterized in that: The surface of the mold foot (3) is connected to a return rod (10), the interior of the mold foot (3) is connected to a flow channel (11), the side of the mold foot (3) is connected to a cooling water connector (4), and the surface of the fixed mold base plate (12) is connected to a cooling pipe (17).

7. The airbag mold that is easy to demould according to claim 1, characterized in that: The side of the fixed mold base plate (12) is connected to a hot runner control box (14), and the side of the mold foot (3) is connected to a gap sensor (5).

8. The airbag mold that is easy to demould according to claim 1, characterized in that: The surface of the mold foot (3) is connected with a lifting screw (9), and the side of the mold foot (3) is connected with a dustproof plate (2).

Images