Sliding block linkage inner pulling mechanism for injection mold of automobile instrument panel decorating part body

Abstract

The invention discloses an automobile dashboard decorating part body injection mold sliding block linkage inner pulling mechanism, and relates to the technical field of injection molding machining, the automobile dashboard decorating part body injection mold sliding block linkage inner pulling mechanism comprises a bottom plate, a supporting column is fixedly installed at the top of the bottom plate, a top plate is fixedly installed at the top of the supporting column, and a hydraulic cylinder is fixedly installed at the top of the top plate; a demolding device is arranged at the top of the bottom plate, a positioning frame is fixedly installed at the top of the bottom plate, a lower mold is fixedly installed at the top of the positioning frame, an upper mold is slidably installed on the circumferential face of a supporting column and fixedly connected with the output end of a hydraulic cylinder, and two fixing rods are fixedly installed at the top of the bottom plate. And a sliding frame is slidably mounted between the fixing rods, so that the rotating block cannot rotate to the bottom due to blocking of the L-shaped rods when moving to the top, the situation that part of the machined part is adhered to the mold to be damaged during demolding, later machining is affected is prevented, and the demolding integrity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to a slider linkage inner drawing mechanism of an injection molding die for a body of an automobile instrument panel decorative part. Background Art

[0002] The slider-linked internal pull-out mechanism in the injection mold of the body of the automobile instrument panel decorative part is usually used to solve the situation where the internal pull-out action is required due to the complex shape of the part during the injection molding process.

[0003] The patent with the patent announcement number CN210257085U relates to an injection mold slider linkage internal extraction mechanism, including a base, a fixed plate and a movable plate, the fixed plate is fixed to the upper end of the base, the upper end of the movable plate is fixedly connected to a fixed frame, and a first driving oil cylinder is fixedly installed at the center of the fixed frame, the output end of the first driving oil cylinder is fixedly connected to the upper end wall of the movable plate, an injection molded part is arranged between the fixed plate and the movable plate, a second driving oil cylinder is arranged at the bottom of the injection molded part, a side core pulling slider is slidably connected to one side of the outer wall of the injection molded part and located on the inner wall of the fixed plate, a second linear rack is horizontally fixedly connected to one side of the outer wall of the side core pulling slider, and the upper end of the second linear rack is meshedly connected to the first gear. The patent structure is simple and easy to operate, and the internal pressure and extraction of the side core pulling slider are realized through the linkage effect of the movable plate, thereby improving production efficiency, and it is convenient and ingenious to use, and suitable for wide promotion.

[0004] In the above patent, the internal pressure and extraction of the side core-pulling slider are achieved through the linkage effect of the movable mold plate, thereby improving production efficiency. It is convenient and ingenious to use and suitable for wide promotion. However, when the injection molding is completed, some areas with special shapes are difficult to separate from the mold during demolding, which can easily cause damage to the product during demolding and affect the product appearance. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a slider linkage inner-drawing mechanism of an injection mold for a body of an automobile instrument panel decorative part, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: the injection mold slider of the automobile dashboard decorative part body is linked to the inner drawing mechanism, including a bottom plate, a support column is fixedly installed on the top of the bottom plate, a top plate is fixedly installed on the top of the support column, a hydraulic cylinder is fixedly installed on the top of the top plate, a demoulding device is arranged on the top of the bottom plate, a positioning frame is fixedly installed on the top of the bottom plate, a lower mold is fixedly installed on the top of the positioning frame, an upper mold is slidably installed on the circumferential surface of the support column, the upper mold is fixedly connected to the output end of the hydraulic cylinder, and two fixing rods are fixedly installed on the top of the bottom plate, and the fixing rods are fixedly installed between them. A sliding frame is slidably installed, a transmission rod is fixedly penetrated through the surface of the lower mold, a sliding groove is opened on the surface of the transmission rod, a rotating block is rotatably installed at the bottom of the transmission rod, a supporting round rod is fixedly installed on the top of the bottom plate, a sliding round rod is slidably installed on the circumferential surface of the supporting round rod, a collar is slidably installed on the circumferential surface of the supporting round rod, a transmission connecting rod is fixedly installed between the collar and the sliding frame, an arc block is fixedly installed on the bottom of the lower mold, the L-shaped rod moves and contacts with the rotating block, so that when the rotating block moves toward the top, it is blocked by the L-shaped rod and cannot rotate toward the bottom, and a deceleration device and a protective device are also provided on the top of the bottom plate.

[0007] According to the above technical solution, a reset spring is arranged between the transmission rod and the L-shaped rod, the arc surface block contacts the L-shaped rod, and the reset spring drives the L-shaped rod to reset.

[0008] According to the above technical solution, a torsion spring is arranged between the rotating block and the transmission rod, the rotating block is in contact with the sliding frame, and the rotating block is driven to reset by the torsion spring.

[0009] According to the above technical solution, a No. 1 spring is arranged between the fixed rod and the sliding frame, the L-shaped rod is in contact with the rotating block, and the sliding frame is driven to reset by the No. 1 spring.

[0010] According to the above technical solution, the deceleration device includes: a hollow box, a lifting plate, a friction block, baffle plate 1 and baffle plate 2, the hollow box is fixedly installed on the bottom of the top plate, a square hole is opened on the surface of the hollow box, the lifting plate is slidably installed on the inner wall of the hollow box, the friction block is slidably installed on the inner wall of the hollow box, baffle plate 1 is fixedly installed on the bottom of the friction block, and baffle plate 2 is fixedly installed on the top of the lifting plate, and baffle plate 1 is limited by baffle plate 2.

[0011] According to the above technical solution, a No. 2 spring is arranged between the lifting plate and the hollow box, and a No. 3 spring is arranged between the friction block and the hollow box. The lifting plate is reset by the No. 2 spring, and the friction block is reset by the No. 3 spring.

[0012] According to the above technical solution, the protective device includes: a square block, a square plate, a triangular block, a ramp block, a fixed diagonal rod and a sliding vertical rod. The square block is fixedly installed on the top of the friction block, the square plate is fixedly installed on the top of the square block, the triangular block is fixedly installed on one end of the square plate, the ramp block is fixedly installed on the other end of the square plate, the fixed diagonal rod is fixedly installed between the triangular block and the ramp block, and the sliding vertical rod is fixedly installed on the top of the lifting plate. The lifting plate is driven to move to the top through the reset of the No. 2 spring, and the movement of the lifting plate drives the baffle plate 2 to move to the top and re-limit the baffle plate 1.

[0013] According to the above technical solution, the sliding vertical rod is in contact with the inclined plane block, and the top of the sliding vertical rod is set as a curved surface.

[0014] The present invention provides a sliding block linkage inner-drawing mechanism for an injection mold of an automobile instrument panel decorative part body. It has the following beneficial effects: (1) The invention, through the movement of the sliding round rod, will contact the workpiece and push the workpiece to move toward the top, so that after the injection molding is completed, the device will demold the area with a shape that is more difficult to demold, thereby preventing some of the workpiece from sticking to the mold and causing damage during demolding, affecting subsequent processing, and improving the integrity of demolding. Through the movement of the L-shaped rod, the rotating block will contact, so that when the rotating block moves toward the top, it is blocked by the L-shaped rod and cannot rotate toward the bottom, thereby improving the stability of the device when it moves toward the top.

[0015] (2) The invention increases the friction between the friction blocks of the upper mold, thereby increasing the resistance of the upper mold when it moves toward the top, reducing the speed of the upper mold when it moves toward the top, and reducing the speed of the upper mold when the demolding device demolds the workpiece, thereby preventing the workpiece from being torn and damaged by the movement of the upper mold when the workpiece is not completely demolded, thereby improving the stability and continuity of the processing, and limiting the baffle plate one by the baffle plate two, so that the mold will not be affected by the limiting effect when it moves toward the bottom, thereby not hindering the injection molding efficiency and improving the work efficiency.

[0016] (3) In the present invention, the movement of the square block drives the friction block to move toward the inside of the hollow box. After the friction block moves, the upper mold will not contact the friction block to produce a deceleration effect when it is injected again, thereby improving the practicality of the device. The lifting plate is driven to move toward the top by the No. 2 spring reset. The movement of the lifting plate drives the baffle plate 2 to move toward the top and re-limits the baffle plate 1, so that the device is reset to the initial state, which does not hinder repeated use and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the top structure of the bottom plate of the present invention; Figure 3 This is a schematic diagram of the internal structure of the positioning frame of the present invention; Figure 4 It is a schematic structural diagram of the demoulding device of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the transmission rod of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the hollow box of the present invention; Figure 7 It is a schematic diagram of the structure of the protective device of the present invention.

[0018] In the figure: 1. bottom plate; 2. support column; 3. top plate; 4. hydraulic cylinder; 51. positioning frame; 52. lower mold; 53. upper mold; 54. fixed rod; 55. sliding frame; 56. transmission rod; 57. rotating block; 58. L-shaped rod; 59. transmission connecting rod; 510. supporting round rod; 511. sliding round rod; 512. collar; 513. arc block; 61. hollow box; 62. lifting plate; 63. friction block; 64. spring No. 2; 65. baffle one; 66. baffle two; 67. spring No. 3; 68. square block; 69. square plate; 610. triangle block; 611. inclined block; 612. fixed inclined rod; 613. sliding vertical rod. DETAILED DESCRIPTION

[0019] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 - Figure 5An embodiment of the present invention is: a slider-linked inner-drawing mechanism of an injection mold for a body of an automobile instrument panel decorative part, comprising a bottom plate 1, a support column 2 is fixedly installed on the top of the bottom plate 1, a top plate 3 is fixedly installed on the top of the support column 2, a hydraulic cylinder 4 is fixedly installed on the top of the top plate 3, a demoulding device is arranged on the top of the bottom plate 1, a positioning frame 51 is fixedly installed on the top of the bottom plate 1, a lower mold 52 is fixedly installed on the top of the positioning frame 51, an upper mold 53 is slidably installed on the circumferential surface of the support column 2, the upper mold 53 is fixedly connected to the output end of the hydraulic cylinder 4, two fixed rods 54 are fixedly installed on the top of the bottom plate 1, a sliding frame 55 is slidably installed between the fixed rods 54, and a transmission rod is fixedly penetrated through the surface of the lower mold 52 56, a sliding groove is provided on the surface of the transmission rod 56, a rotating block 57 is rotatably installed at the bottom of the transmission rod 56, a supporting round rod 510 is fixedly installed on the top of the bottom plate 1, a sliding round rod 511 is slidably installed on the circumferential surface of the supporting round rod 510, a ring 512 is slidably installed on the circumferential surface of the supporting round rod 510, and a transmission connecting rod 59 is fixedly installed between the ring 512 and the sliding frame 55, so that after the injection molding is completed, the device can demold the area whose shape is difficult to demold, prevent part of the processed parts from adhering to the mold and causing damage during demolding, affecting the later processing, and improve the integrity of the demolding, and a curved block 513 is fixedly installed at the bottom of the lower mold 52 to improve the stability of the device when it moves to the top.

[0021] A return spring is provided between the transmission rod 56 and the L-shaped rod 58 , and the arc surface block 513 is in contact with the L-shaped rod 58 , and the return spring drives the L-shaped rod 58 to return to its original position.

[0022] A torsion spring is provided between the rotating block 57 and the transmission rod 56. The rotating block 57 contacts the sliding frame 55, and the rotating block 57 is driven by the torsion spring to reset.

[0023] A No. 1 spring is arranged between the fixed rod 54 and the sliding frame 55. The L-shaped rod 58 contacts the rotating block 57, and the sliding frame 55 is driven to reset by the No. 1 spring.

[0024] When the present embodiment is working, the hydraulic cylinder 4 is started, and the output end of the hydraulic cylinder 4 moves toward the bottom, which drives the upper mold 53 to move toward the bottom. After the upper mold 53 moves toward the bottom, it closes with the lower mold 52 and starts injection molding. The upper mold 53 moves toward the bottom, which drives the transmission rod 56 to move toward the bottom. The movement of the transmission rod 56 drives the rotating block 57 to move toward the bottom. The movement of the rotating block 57 contacts with the sliding frame 55. The rotating block 57 is blocked by the sliding frame 55 so that the rotating block 57 rotates toward the top. After the rotating block 57 rotates, it moves toward the bottom along with the transmission rod 56. After the rotating block 57 no longer contacts the sliding frame 55, it is reset by the torsion spring and drives the rotating block 57 to rotate toward the bottom. After the injection molding is completed, the upper mold 53 moves toward the top, and the movement of the upper mold 53 drives the transmission rod 56 to move toward the top. The movement of the transmission rod 56 drives the rotating block 57 to move toward the top. The movement of the rotating block 57 contacts with the sliding frame 55 and drives the sliding frame 55 to move toward the top. The sliding frame 55 moves with The movable transmission connecting rod 59 moves toward the top, and the transmission connecting rod 59 drives the sleeve ring 512 to move toward the top. The movement of the sleeve ring 512 will contact the sliding round rod 511. The movement of the sleeve ring 512 will drive the sliding round rod 511 to move toward the top. The movement of the sliding round rod 511 will contact the workpiece and push the workpiece to move toward the top, so that after the injection molding is completed, the device will demold the area with a shape that is difficult to demold, to prevent some workpieces from adhering to the mold and causing damage during demolding, affecting the later processing, and improving the integrity of the demolding. The transmission rod 56 moves toward the top and drives the L-shaped rod 58 to move toward the top. The movement of the L-shaped rod 58 will contact the arc block 513. The L-shaped rod 58 is blocked by the arc block 513, so that the L-shaped rod 58 moves toward the inside of the transmission rod 56. The movement of the L-shaped rod 58 will contact the rotating block 57, so that when the rotating block 57 moves toward the top, it is blocked by the L-shaped rod 58 and cannot rotate toward the bottom, thereby improving the stability of the device when it moves toward the top.

[0025] See also Figure 1 - Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a deceleration device and a protective device are further provided on the top of the bottom plate 1, wherein the deceleration device comprises: a hollow box 61, a lifting plate 62, a friction block 63, a baffle 1 65 and a baffle 2 66, the hollow box 61 is fixedly mounted on the bottom of the top plate 3, a square hole is opened on the surface of the hollow box 61, the lifting plate 62 is slidably mounted on the inner wall of the hollow box 61, the friction block 63 is slidably mounted on the inner wall of the hollow box 61, a baffle 1 65 is fixedly mounted on the bottom of the friction block 63, and a baffle 2 66 is fixedly mounted on the top of the lifting plate 62, so that the speed of the upper mold 53 moving toward the top is reduced, so that when the demoulding device demoulds the workpiece, the speed of the upper mold 53 moving toward the top is reduced, so as to prevent the upper mold 53 from tearing the workpiece when the workpiece is not completely demoulded, thereby improving the stability and continuity of the processing, so that when the upper mold 53 moves toward the bottom, it will not be limited, and the injection molding efficiency will not be hindered, thereby improving the work efficiency.

[0026] A No. 2 spring 64 is provided between the lifting plate 62 and the hollow box 61 , and a No. 3 spring 67 is provided between the friction block 63 and the hollow box 61 . The No. 2 spring 64 drives the lifting plate 62 to reset, and the No. 3 spring 67 drives the friction block 63 to reset.

[0027] The protective device includes: a square block 68, a square plate 69, a triangular block 610, a ramp block 611, a fixed diagonal rod 612 and a sliding vertical rod 613. The square block 68 is fixedly installed on the top of the friction block 63, the square plate 69 is fixedly installed on the top of the square block 68, the triangular block 610 is fixedly installed on one end of the square plate 69, so that when the upper mold 53 is injected again, it will not contact with the friction block 63 to produce a deceleration effect, thereby improving the practicality of the device, the ramp block 611 is fixedly installed on the other end of the square plate 69, the fixed diagonal rod 612 is fixedly installed between the triangular block 610 and the ramp block 611, and the sliding vertical rod 613 is fixedly installed on the top of the lifting plate 62, so that the device is reset to the initial state, does not hinder repeated use, and improves the practicality of the device.

[0028] The sliding vertical rod 613 contacts the inclined surface block 611 , and the top of the sliding vertical rod 613 is configured as an arc surface.

[0029] When the present embodiment is working, the upper mold 53 will contact the lifting plate 62 after it moves to the bottom, and the upper mold 53 will drive the lifting plate 62 to move toward the bottom, and the lifting plate 62 will drive the baffle plate 2 66 to move toward the bottom, and the baffle plate 2 66 will no longer contact the baffle plate 1 65 after it moves, and the baffle plate 1 65 will no longer be limited by the baffle plate 2 66, and the friction block 63 will be driven to move away from the inside of the hollow box 61 through the reset of the third spring 67, and the upper mold 53 will contact the friction block 63 when it moves to the top, and the friction blocks 63 of the upper mold 53 and 63 will be moved. After the friction force increases, the resistance of the upper mold 53 when moving toward the top increases, and the speed of the upper mold 53 when moving toward the top decreases. When the demolding device is demolding the workpiece, the speed of the upper mold 53 moving toward the top decreases, preventing the workpiece from being torn and damaged when the upper mold 53 moves when the workpiece is not completely demolded, thereby improving the stability and continuity of the processing. By limiting the baffle plate 1 65 by the baffle plate 2 66, the upper mold 53 will not be affected by the limiting effect when moving toward the bottom, thereby not hindering the injection molding efficiency and improving the work efficiency.

[0030] The movement of the friction block 63 drives the square block 68 to move away from the inside of the hollow box 61, the movement of the square block 68 drives the square plate 69 to move, the movement of the square plate 69 drives the triangular block 610 to move to the outside of the hollow box 61, and the upper mold 53 will contact the triangular block 610 after moving to the top. The movement of the upper mold 53 drives the triangular block 610 to move toward the inside of the hollow box 61, the movement of the triangular block 610 drives the square plate 69 to move toward the inside of the hollow box 61, the movement of the square plate 69 drives the square block 68 to move toward the inside of the hollow box 61, and the movement of the square block 68 drives the friction block 63 to move toward the inside of the hollow box 61. After the friction block 63 moves, it will not contact the friction block 63 to generate deceleration when the upper mold 53 performs injection molding again. The effect improves the practicability of the device. The movement of the square plate 69 drives the inclined surface block 611 to move in the direction of the sliding vertical rod 613. The movement of the inclined surface block 611 will contact the sliding vertical rod 613 and push the sliding vertical rod 613 to move to the bottom. The movement of the sliding vertical rod 613 drives the lifting plate 62 to move to the bottom. The movement of the lifting plate 62 drives the baffle plate 2 66 to move to the bottom. The friction block 63 moves toward the inside of the hollow box 61 and drives the baffle plate 1 65 to move toward the inside of the hollow box 61. Then, the No. 2 spring 64 is reset to drive the lifting plate 62 to move to the top. The movement of the lifting plate 62 drives the baffle plate 2 66 to move to the top and re-limits the baffle plate 1 65, so that the device is reset to the initial state, does not hinder repeated use, and improves the practicability of the device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slider linkage inner-drawing mechanism for an injection mold of a car dashboard decorative part, comprising a bottom plate (1), characterized in that: A support column (2) is fixedly mounted on the top of the base plate (1), a top plate (3) is fixedly mounted on the top of the support column (2), a hydraulic cylinder (4) is fixedly mounted on the top of the top plate (3), a demoulding device is provided on the top of the base plate (1), a positioning frame (51) is fixedly mounted on the top of the base plate (1), a lower mold (52) is fixedly mounted on the top of the positioning frame (51), an upper mold (53) is slidably mounted on the circumferential surface of the support column (2), the upper mold (53) is fixedly connected to the output end of the hydraulic cylinder (4), two fixed rods (54) are fixedly mounted on the top of the base plate (1), a sliding frame (55) is slidably mounted between the fixed rods (54), and the bottom of the base plate (1) is provided with a demoulding device. A transmission rod (56) is fixedly mounted on the surface of the lower mold (52), a sliding groove is provided on the surface of the transmission rod (56), a rotating block (57) is rotatably mounted on the bottom of the transmission rod (56), a supporting round rod (510) is fixedly mounted on the top of the bottom plate (1), a sliding round rod (511) is slidably mounted on the circumferential surface of the supporting round rod (510), a sleeve ring (512) is slidably mounted on the circumferential surface of the supporting round rod (510), a transmission connecting rod (59) is fixedly mounted between the sleeve ring (512) and the sliding frame (55), a curved surface block (513) is fixedly mounted on the bottom of the lower mold (52), and a deceleration device and a protective device are also provided on the top of the bottom plate (1).

2. The sliding block linkage inner-drawing mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 1, characterized in that: A return spring is provided between the transmission rod (56) and the L-shaped rod (58), and the arc surface block (513) is in contact with the L-shaped rod (58).

3. The sliding block linkage inner-drawing mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 2, characterized in that: A torsion spring is provided between the rotating block (57) and the transmission rod (56), and the rotating block (57) is in contact with the sliding frame (55).

4. The sliding block linkage inner-drawing mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 3 is characterized in that: A No. 1 spring is provided between the fixed rod (54) and the sliding frame (55), and the L-shaped rod (58) is in contact with the rotating block (57).

5. The sliding block linkage inner-extraction mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 4, characterized in that: The deceleration device comprises: a hollow box (61), a lifting plate (62), a friction block (63), a baffle plate 1 (65) and a baffle plate 2 (66); the hollow box (61) is fixedly mounted on the bottom of the top plate (3); a square hole is provided on the surface of the hollow box (61); the lifting plate (62) is slidably mounted on the inner wall of the hollow box (61); the friction block (63) is slidably mounted on the inner wall of the hollow box (61); the bottom of the friction block (63) is fixedly mounted with a baffle plate 1 (65); the top of the lifting plate (62) is fixedly mounted with a baffle plate 2 (66).

6. The sliding block linkage inner-drawing mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 5, characterized in that: A No. 2 spring (64) is provided between the lifting plate (62) and the hollow box (61), and a No. 3 spring (67) is provided between the friction block (63) and the hollow box (61).

7. The sliding block linkage inner-extraction mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 6, characterized in that: The protective device comprises: a square block (68), a square plate (69), a triangular block (610), a sloped surface block (611), a fixed diagonal rod (612) and a sliding vertical rod (613); the square block (68) is fixedly mounted on the top of the friction block (63); the square plate (69) is fixedly mounted on the top of the square block (68); the triangular block (610) is fixedly mounted on one end of the square plate (69); the sloped surface block (611) is fixedly mounted on the other end of the square plate (69); the fixed diagonal rod (612) is fixedly mounted between the triangular block (610) and the sloped surface block (611); and the sliding vertical rod (613) is fixedly mounted on the top of the lifting plate (62).

8. The sliding block linkage inner-drawing mechanism of the injection mold for the automobile instrument panel decorative part body according to claim 7, characterized in that: The sliding vertical rod (613) is in contact with the inclined surface block (611), and the top of the sliding vertical rod (613) is configured as a curved surface.

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