Safety air bag cover plate injection mold facilitating material head shearing

Abstract

The utility model relates to the technical field of safety air bag cover plate production, and discloses a safety air bag cover plate injection mold convenient for cutting stub bars, which comprises a base, a lower mold is arranged at the top end of the base, and an upper mold is arranged at the top end of the lower mold. According to the safety air bag cover plate injection mold facilitating material head shearing, the mounting frame, the shearing blade and the second hydraulic cylinder are arranged, the second hydraulic cylinder is started, the second hydraulic cylinder drives the hinge frame and the shearing blade to move through the mounting frame, and when the shearing blade moves to the two sides of excess materials, an electric push rod is started and drives the hinge frame to move; and a second hydraulic cylinder is started again after shearing is completed, so that the shearing blade moves backwards to enable the shearing blade and the mounting frame to move backwards, and the problems that redundant material heads are inconvenient to shear, and subsequent machining of the airbag cover plate is easily affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of production of safety airbag covers, in particular to an injection mould for safety airbag covers which is convenient for shearing a material head. Background Art

[0002] Airbags can evenly distribute the impact force on the head and chest, preventing the fragile passenger body from directly colliding with the vehicle body, greatly reducing the possibility of injury. The airbag is hidden in the steering wheel before inflation. A cover is provided on the steering wheel to cover the airbag. An airbag cover injection mold is required for its production.

[0003] An injection mold is a tool used to produce plastic products. Common airbag cover injection molds still have some problems. For example, due to the injection port, there will be excess material on the top of the airbag cover during production, making it inconvenient to cut the excess material, which can easily affect subsequent processing of the airbag cover.

[0004] Therefore, we proposed an airbag cover injection mold that is easy to shear the material head to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an injection mold for an airbag cover that is convenient for cutting the sprue, so as to solve the problem in the above background technology that it is inconvenient to cut the excess sprue, which easily affects the subsequent processing of the airbag cover.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an injection mold for an airbag cover that is convenient for shearing a material head, comprising a base, a lower mold being provided at the top of the base, an upper mold being provided at the top of the lower mold, a mounting plate being fixedly connected to the top of the rear end of the lower mold, and a cutting structure being provided at the front end of the mounting plate for facilitating shearing;

[0007] The cutting structure includes a second hydraulic cylinder, an electric push rod and an articulated frame. The second hydraulic cylinder is installed at the front end of the mounting plate, and the mounting frame is installed at the front end of the second hydraulic cylinder. Electric push rods are installed on both sides of the mounting frame. The side of the electric push rod close to the outside is movably hinged with the articulated frame, and the side of the articulated frame close to the middle is fixedly connected to the shear blade.

[0008] Preferably, a mold cavity is provided at the top end of the lower mold, and an injection port is provided at the top end of the upper mold.

[0009] Preferably, two groups of the articulated frames are provided, and the middle positions of the articulated frames are movably hinged.

[0010] Preferably, the bottom end of the lower mold is fixedly connected to a fixed plate, the top of the fixed plate is provided with a movable plate, the top of the movable plate is provided with a top plate, connecting blocks are fixedly connected on both sides between the top plate and the movable plate, a threaded rod is provided between the movable plate and the fixed plate, threaded sleeves are provided on both sides of the outside of the threaded rod, a turning handle is fixedly connected to the right side of the threaded rod, the bottom of both ends of the threaded sleeve are movably hinged with a first hinged rod, and the top of both ends of the threaded sleeve are movably hinged with a second hinged rod.

[0011] Preferably, the second hinged rod is movably hinged between the movable plate and the threaded sleeve, and the first hinged rod is movably hinged between the fixed plate and the threaded sleeve.

[0012] Preferably, the top plate is arranged inside the mold cavity, and the threaded sleeve and the threaded rod cooperate with each other.

[0013] Preferably, a first hydraulic cylinder is installed on the left side of the top of the base, a connecting plate is installed on the top of the first hydraulic cylinder, a connecting rod is fixedly connected to the left side of the bottom end of the connecting plate, and the connecting rod is fixedly connected between the upper mold and the connecting plate.

[0014] Preferably, the right side of the upper mold is fixedly connected to a limiting sleeve, the right side of the top of the base is fixedly connected to a limiting rod, the upper and lower ends of the limiting rod are provided with fixing holes, and a fixing pin is provided inside the fixing hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the airbag cover plate injection mold that is convenient for cutting the material head not only makes it easy to cut the material head and conveniently control the thickness of the cover plate by discharging, but also makes it easy to lift and fix the upper mold;

[0016] (1) A mounting frame, an electric push rod, an articulated frame, a shearing blade, and a second hydraulic cylinder are provided. The second hydraulic cylinder is started, and the second hydraulic cylinder drives the articulated frame and the shearing blade to move through the mounting frame. When the shearing blade moves to both sides of the excess material, the electric push rod is started, and the electric push rod drives the articulated frame to move, so that the shearing blade can move closer to the middle to shear the material head, thereby preventing the material head on the cover plate from affecting the subsequent processing of the cover plate. After the shearing is completed, the second hydraulic cylinder is started again to move the shearing blade and the mounting frame backward;

[0017] (2) A top plate, a connecting block, a movable plate, a turning handle, a threaded sleeve, a threaded rod and a fixed plate are provided. When the depth inside the mold cavity needs to be adjusted, the turning handle is turned. The turning handle drives the threaded sleeve to move left and right through the threaded rod. The movement of the threaded sleeve can drive the movable plate to rise and fall through the threaded rod. The lifting of the movable plate can control the height of the top plate inside the mold cavity, so that the depth inside the mold cavity can be adjusted according to needs and the thickness of the cover plate can be controlled. When it is necessary to discharge the material, the turning handle is turned again to make the movable plate drive the connecting block and the top plate to rise. The rising of the top plate can eject the cover plate inside the mold cavity.

[0018] (3) By providing a first hydraulic cylinder, a connecting plate, a fixing hole, a limiting rod, a limiting sleeve and a fixing pin, the first hydraulic cylinder is started after the cover plate inside the mold cavity is formed. The first hydraulic cylinder drives the upper mold to rise through the connecting plate and the connecting rod. After the upper mold rises to a suitable position, the fixing pin is inserted into the fixing hole, thereby limiting and fixing the upper mold to prevent the upper mold from falling suddenly and accidentally injuring the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is an enlarged structural diagram of the movable plate of the utility model in front view;

[0021] Figure 3 This is an enlarged schematic diagram of the top view of the cross section of the hinged frame of the present invention;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. base; 2. lower mold; 3. first hinged rod; 4. second hinged rod; 5. mold cavity; 6. top plate; 7. first hydraulic cylinder; 8. connecting plate; 9. connecting rod; 10. upper mold; 11. mounting plate; 12. fixing hole; 13. limiting rod; 14. limiting sleeve; 15. connecting block; 16. movable plate; 17. turning handle; 18. threaded sleeve; 19. threaded rod; 20. fixing plate; 21. mounting frame; 22. electric push rod; 23. hinged frame; 24. shear blade; 25. second hydraulic cylinder; 26. fixing pin. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1: Please refer to Figure 1-4 An airbag cover injection mold that is convenient for shearing a material head includes a base 1, a lower mold 2 is provided on the top of the base 1, an upper mold 10 is provided on the top of the lower mold 2, a mounting plate 11 is fixedly connected to the top of the rear end of the lower mold 2, and a cutting structure that is convenient for shearing is provided at the front end of the mounting plate 11;

[0026] The cutting structure includes a second hydraulic cylinder 25, an electric push rod 22 and an articulated frame 23. The second hydraulic cylinder 25 is installed at the front end of the mounting plate 11, and the mounting frame 21 is installed at the front end of the second hydraulic cylinder 25. Electric push rods 22 are installed on both sides of the mounting frame 21. The side of the electric push rod 22 close to the outside is movably hinged to the articulated frame 23, and the side of the articulated frame 23 close to the middle is fixedly connected to the shear blade 24.

[0027] A mold cavity 5 is provided at the top of the lower mold 2, an injection port is provided at the top of the upper mold 10, two sets of hinged frames 23 are provided, and the middle position of the hinged frames 23 is movable hinged;

[0028] Specifically, if Figure 1 and Figure 3 As shown, the second hydraulic cylinder 25 is started, and the second hydraulic cylinder 25 drives the articulated frame 23 and the shearing blade 24 to move through the mounting frame 21. When the shearing blade 24 moves to both sides of the excess material, the electric push rod 22 is started, and the electric push rod 22 drives the articulated frame 23 to move, so that the shearing blade 24 can move closer to the middle to shear the material head, preventing the material head on the cover plate from affecting the subsequent processing of the cover plate. After the shearing is completed, the second hydraulic cylinder 25 is started again to move the shearing blade 24 and the mounting frame 21 backward.

[0029] Embodiment 2: The bottom end of the lower mold 2 is fixedly connected with a fixed plate 20, the top of the fixed plate 20 is provided with a movable plate 16, the top of the movable plate 16 is provided with a top plate 6, and the top plate 6 and the movable plate 16 are fixedly connected with connecting blocks 15 on both sides. A threaded rod 19 is provided between the movable plate 16 and the fixed plate 20, and threaded sleeves 18 are provided on both sides of the outside of the threaded rod 19. The right side of the threaded rod 19 is fixedly connected with a turning handle 17, and the bottom of both ends of the threaded sleeve 18 is movably hinged with a first hinged rod 3, and the top of both ends of the threaded sleeve 18 is movably hinged with a second hinged rod 4, the second hinged rod 4 is movably hinged to the movable plate 16 and the threaded sleeve 18. The first hinged rod 3 is movably hinged between the fixed plate 20 and the threaded sleeve 18, the top plate 6 is provided inside the mold cavity 5, and the threaded sleeve 18 and the threaded rod 19 cooperate with each other;

[0030] Specifically, if Figure 1 and Figure 2 As shown, when the depth inside the mold cavity 5 needs to be adjusted, the handle 17 is turned. The handle 17 drives the threaded sleeve 18 to move left and right through the threaded rod 19. The movement of the threaded sleeve 18 can drive the movable plate 16 to rise and fall through the threaded rod 19. The lifting of the movable plate 16 can control the internal height of the top plate 6 in the mold cavity 5, so that the internal depth of the mold cavity 5 can be adjusted as needed, and the thickness of the cover plate can be controlled. When discharge is required, the handle 17 is turned again to make the movable plate 16 drive the connecting block 15 and the top plate 6 to rise. The rising of the top plate 6 can eject the cover plate inside the mold cavity 5.

[0031] Example 3: A first hydraulic cylinder 7 is installed on the left side of the top of the base 1, and a connecting plate 8 is installed on the top of the first hydraulic cylinder 7. A connecting rod 9 is fixedly connected to the left side of the bottom end of the connecting plate 8. The connecting rod 9 is fixedly connected between the upper mold 10 and the connecting plate 8. The right side of the upper mold 10 is fixedly connected to a limiting sleeve 14. The right side of the top of the base 1 is fixedly connected to a limiting rod 13. The upper and lower ends of the limiting rod 13 are formed with fixing holes 12. A fixing pin 26 is provided inside the fixing hole 12.

[0032] Specifically, if Figure 1 and Figure 4 As shown, after the cover plate inside the mold cavity 5 is formed, the first hydraulic cylinder 7 is started, and the first hydraulic cylinder 7 drives the upper mold 10 to rise through the connecting plate 8 and the connecting rod 9. After the upper mold 10 rises to a suitable position, the fixing pin 26 is inserted into the fixing hole 12, so that the upper mold 10 can be limited and fixed to prevent the upper mold 10 from falling suddenly and accidentally injuring the staff.

[0033] Working principle: When the utility model is in use, the handle 17 is turned, and the handle 17 drives the threaded sleeve 18 to move left and right through the threaded rod 19. The movement of the threaded sleeve 18 can drive the movable plate 16 to rise and fall through the threaded rod 19. The lifting of the movable plate 16 can control the internal height of the top plate 6 in the mold cavity 5, so that the depth of the interior of the mold cavity 5 can be adjusted according to needs, and the thickness of the cover plate can be controlled. After the adjustment, the injection liquid is adjusted to the interior of the mold cavity 5 through the injection port. After the cover plate inside the mold cavity 5 is formed, the first hydraulic cylinder 7 is started. The first hydraulic cylinder 7 drives the upper mold 10 to rise through the connecting plate 8 and the connecting rod 9. After the upper mold 10 rises to a suitable position, the fixing pin 26 is inserted into the interior of the fixing hole 12, so that The upper mold 10 is limited and fixed. After it is fixed, the second hydraulic cylinder 25 is started. The second hydraulic cylinder 25 drives the articulated frame 23 and the shearing blade 24 to move through the mounting frame 21. When the shearing blade 24 moves to both sides of the excess material, the electric push rod 22 is started. The electric push rod 22 drives the articulated frame 23 to move, so that the shearing blade 24 can move closer to the middle to shear the material head, preventing the material head on the cover plate from affecting the subsequent processing of the cover plate. After the shearing is completed, the second hydraulic cylinder 25 is started again to move the shearing blade 24 and the mounting frame 21 backward. When it is necessary to discharge the material, the handle 17 is turned again to make the movable plate 16 drive the connecting block 15 and the top plate 6 to rise. The rise of the top plate 6 can eject the cover plate inside the mold cavity 5.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An airbag cover injection mold that is convenient for shearing a material head, comprising a base (1), characterized in that: A lower mold (2) is provided at the top of the base (1), an upper mold (10) is provided at the top of the lower mold (2), a mounting plate (11) is fixedly connected to the top of the rear end of the lower mold (2), and a cutting structure for facilitating shearing is provided at the front end of the mounting plate (11); The cutting structure comprises a second hydraulic cylinder (25), an electric push rod (22) and an articulated frame (23); the second hydraulic cylinder (25) is installed at the front end of the mounting plate (11); the mounting frame (21) is installed at the front end of the second hydraulic cylinder (25); the electric push rods (22) are installed on both sides of the mounting frame (21); the electric push rods (22) are movably articulated with the articulated frame (23) on one side close to the outside; and the articulated frame (23) is fixedly connected with a shearing blade (24) on one side close to the middle.

2. The airbag cover injection mold that is convenient for cutting the sprue according to claim 1, characterized in that: A mold cavity (5) is provided at the top end of the interior of the lower mold (2), and an injection port is provided at the top end of the interior of the upper mold (10).

3. The airbag cover injection mold that is convenient for cutting the material head according to claim 1, characterized in that: The hinged frames (23) are provided in two groups, and the middle positions of the hinged frames (23) are movably hinged.

4. The airbag cover injection mold that is convenient for cutting the material head according to claim 1, characterized in that: The bottom end of the lower mold (2) is fixedly connected to a fixed plate (20), the top of the fixed plate (20) is provided with a movable plate (16), the top of the movable plate (16) is provided with a top plate (6), the top plate (6) and the movable plate (16) are fixedly connected on both sides with connecting blocks (15), a threaded rod (19) is provided between the movable plate (16) and the fixed plate (20), the two sides of the threaded rod (19) are provided with threaded sleeves (18), the right side of the threaded rod (19) is fixedly connected to a turning handle (17), the bottom of both ends of the threaded sleeve (18) are movably hinged to a first hinged rod (3), and the top of both ends of the threaded sleeve (18) are movably hinged to a second hinged rod (4).

5. The airbag cover injection mold that is convenient for cutting the sprue according to claim 4, characterized in that: The second hinged rod (4) is movably hinged between the movable plate (16) and the threaded sleeve (18); the first hinged rod (3) is movably hinged between the fixed plate (20) and the threaded sleeve (18).

6. The airbag cover injection mold that is convenient for cutting the sprue according to claim 4, characterized in that: The top plate (6) is arranged inside the mold cavity (5), and the threaded sleeve (18) and the threaded rod (19) cooperate with each other.

7. The airbag cover injection mold that is convenient for cutting the material head according to claim 1, characterized in that: A first hydraulic cylinder (7) is installed on the left side of the top of the base (1), a connecting plate (8) is installed on the top of the first hydraulic cylinder (7), a connecting rod (9) is fixedly connected to the left side of the bottom end of the connecting plate (8), and the connecting rod (9) is fixedly connected between the upper mold (10) and the connecting plate (8).

8. The airbag cover injection mold that is convenient for cutting the sprue according to claim 1, characterized in that: The right side of the upper mold (10) is fixedly connected to a limiting sleeve (14), and the right side of the top of the base (1) is fixedly connected to a limiting rod (13). The limiting rod (13) has fixing holes (12) at the upper and lower ends thereof, and a fixing pin (26) is provided inside the fixing hole (12).

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