Sprue shearing device for automotive trim injection-molded part

Abstract

The utility model relates to an automotive trim injection molded part sprue shearing device, which comprises a base, support rods, a lower mold table and an upper mold table, the support rods are arranged on the top side of the base, the lower mold table is arranged on the two support rods in a sliding manner, support blocks are arranged on the two sides of the lower mold table, and the upper mold table is arranged on the support blocks. And a supporting shaft is rotationally mounted on the top side of the supporting block. The utility model relates to the technical field of injection molding processing of automotive interiors. When the automotive trim injection molding part sprue shearing device is used, the upper mold table ascends to drive the driving part, and the driving part drives the two cutters to rotate by 90 degrees, so that the sprue of the injection molding part is cut off, and the sprue of the automotive trim injection molding part is directly cut off during injection molding; and the working steps during processing of the automotive trim are reduced, so that the production efficiency of the automotive trim is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior molding injection molding, in particular to a gate shearing device for automobile interior molding injection moldings. Background Art

[0002] Among the car interiors, some of them are mainly plastic products, so some of the car interior decorations are made of injection molding. Injection molding is the process of injecting the hot molten material into the cavity through the runner and the gate, and removing the material from the mold after cooling and solidification, thus forming an injection molded product with a certain shape and structure. Usually, after the injection molded product is ejected from the mold, there is a gate connected to the injection molded part body in the runner of the injection port. Since the existence of the gate will affect the normal use of the injection molded part, it needs to be cut off.

[0003] In the prior art, when the gate of an automobile interior molding is sheared after the molding, most of the time the gate is sheared after the molding is taken out, the molding is conveyed to a shearing device, and then the molding is fixed and sheared after the fixation is completed. After shearing, the fixation is released and the molding is conveyed out. These steps consume a lot of time in the automobile interior molding process, thereby reducing the efficiency of the automobile interior molding process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a gate shearing device for automobile interior injection moldings, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A gate shearing device for an automobile interior injection molded part comprises a base, a support rod, a lower mold platform and an upper mold platform, wherein the support rod is mounted on the top side of the base, the lower mold platform is slidably mounted on two support rods, support blocks are mounted on both sides of the lower mold platform, a support shaft is rotatably mounted on the top side of the support block, a cutter is fixedly connected to the top side of the outer peripheral wall of the support shaft, and a driving member is arranged between the side of the upper mold platform and the support shaft.

[0007] In a preferred example, the utility model can be further configured as follows: the driving member includes a vertical rod, the vertical rod is fixedly installed on the top side of the supporting shaft, and the outer peripheral wall of the vertical rod is provided with an arc groove, and the arc groove is spirally arranged.

[0008] In a preferred example, the utility model can be further configured as follows: a slider is slidably mounted on the outer peripheral wall of the vertical rod, a ball is rotatably mounted on the inner side of the slider, and the ball is slidably connected to the arc groove.

[0009] In a preferred example, the utility model can be further configured as follows: a clamping block is fixedly connected to the outer wall of the sliding block, spring plates are installed on the two inner walls of the clamping block, a toggle shaft is fixedly installed on the side of the upper mold platform close to the vertical rod, and a transmission part is provided on the top of the support block away from the side of the lower mold platform.

[0010] In a preferred example, the utility model can be further configured as follows: the transmission member includes a vertical rod, which is fixedly connected to the top of the support block away from the side of the lower mold platform, and the outer peripheral wall of the vertical rod is fixedly connected to a chassis, and the top side of the chassis is in contact with the bottom side of the slider.

[0011] In a preferred example, the utility model can be further configured as follows: a baffle is connected to the top of the vertical rod, a return spring is connected to the bottom of the baffle, and the bottom end of the return spring is fixedly connected to the top of the sliding block.

[0012] In summary, the present invention includes at least one of the following beneficial technical effects:

[0013] 1. The gate shearing device for automobile interior injection molded parts drives the driving member by the rise of the upper mold platform during use, and the two cutters are driven by the arranged driving member to rotate 90 degrees, so as to cut off the gate of the injection molded part, thereby directly cutting off the gate of the automobile interior injection molded part during injection molding, reducing the working steps during automobile interior processing, and thus improving the production efficiency of automobile interior;

[0014] 2. This kind of automobile interior injection molding gate shearing device, after the injection molding is completed, when the upper mold table moves upward, the toggle shaft will push the spring piece and drive the slider to move upward, and the set slider will drive the rotation of the vertical rod, thereby driving the cutter to rotate and shear the gate of the automobile interior injection molding part, so as to achieve shearing during the injection molding work, saving time and improving the production efficiency of automobile interior injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of a gate shearing device for an automobile interior injection molded part.

[0017] Figure 2 The utility model is a schematic diagram of the structure of a driving component of a gate shearing device for an automobile interior injection molded part.

[0018] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0019] In the figure, 1, base; 2, support rod; 3, lower die table; 4, upper die table; 5, support block; 6, support shaft; 7, cutter; 8, driving member; 9, vertical rod; 10, arc groove; 11, slider; 12, ball bearing; 13, clamping block; 14, spring piece; 15, toggle shaft; 16, transmission member; 17, vertical rod; 18, chassis; 19, baffle plate; 20, reset spring. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Example:

[0022] Reference Figure 1-Figure 3 The utility model discloses a gate shearing device for automobile interior injection molding parts, comprising a base 1, a support rod 2, a lower mold platform 3 and an upper mold platform 4, wherein the support rod 2 is installed on the top side of the base 1, and the lower mold platform 3 is slidably installed on the two support rods 2. Support blocks 5 are installed on both sides of the lower mold platform 3, and a support shaft 6 is rotatably installed on the top side of the support block 5. A cutter 7 is fixedly connected to the top side of the outer peripheral wall of the support shaft 6, and a driving member 8 is arranged between the side of the upper mold platform 4 and the support shaft 6.

[0023] In this embodiment, when injection molding is performed, the upper mold table 4 will move toward the lower mold table 3 through the injection molding device, wherein the injection hole of the upper mold table 4 will inject the molten raw material into the injection groove of the lower mold table 3, and the upper mold table 4 will move to the initial position after the injection molding is cooled and finalized. When the upper mold table 4 moves to the initial position, the upper mold table 4 will drive the support shaft 6 to rotate through the provided driving member 8, and the rotation of the support shaft 6 will drive the cutter 7 connected thereto to rotate. When the cutter 7 rotates to the injection groove, if the cutter 7 is not in contact with the injection molded part, the injection molded part will be pushed outward by the pushing member in the injection molding device, so that the injection molded part is in contact with the cutter 7, and the cutter 7 continues to rotate. When the two cutters 7 rotate and begin to fit, the excess part of the gate on the injection molded part will be sheared off by the two cutters 7, thereby achieving the effect of quickly shearing the gate of the injection molded part.

[0024] In a further preferred embodiment of the present invention, Figure 2-3 As shown, the driving member 8 includes a vertical rod 9, which is fixedly mounted on the top side of the supporting shaft 6. An arc groove 10 is provided on the outer peripheral wall of the vertical rod 9. The arc groove 10 is spirally arranged. A slider 11 is slidably mounted on the outer peripheral wall of the vertical rod 9. A ball 12 is rotatably mounted on the inner side of the slider 11. The ball 12 is slidably connected to the arc groove 10.

[0025] In this embodiment, when the upper mold table 4 moves upward, the slider 11 moves upward. When the slider 11 moves upward, it will drive the ball 12 to move upward. The ball 12 is rotatably connected to the slider 11 and is slidably connected to the arc groove 10. The ball 12 is vertically upward, and the arc groove 10 is spirally arranged. Therefore, when the ball 12 moves upward, it will drive the vertical rod 9 and the support shaft 6 to rotate, and then drive the cutter 7 to rotate, so that the blade parts of the two cutters 7 rotate toward the injection molded part on the lower mold table 3.

[0026] In a further preferred embodiment of the present invention, Figure 2-3 As shown, the outer wall of the slider 11 is fixedly connected with a clamping block 13, and the two inner walls of the clamping block 13 are both installed with spring plates 14. A toggle shaft 15 is fixedly installed on the side of the upper mold platform 4 close to the vertical rod 9, and a transmission member 16 is provided on the top of the support block 5 away from the side of the lower mold platform 3.

[0027] In this embodiment, when the upper mold table 4 moves downward, it will drive the toggle shaft 15 to move downward. When the inserted clamp 13 contacts the spring 14, the transmission member 16 set at this time will limit the slider 11, so the slider 11 will not continue to move downward. Therefore, when the toggle shaft 15 moves downward, it will pass through the limit of the spring 14, thereby reaching the bottom of the spring 14, and cooperate with the lower mold table 3 to perform injection molding. After the injection molding is completed, when it moves upward, the upward movement of the slider 11 is not restricted. Then the toggle shaft 15 will push the spring 14 and drive the slider 11 to move upward, and the set slider 11 will drive the rotation of the vertical rod 9, thereby driving the cutter 7 to rotate and shear the gate of the automobile interior injection molding part, so as to achieve shearing during the injection molding work, saving time and improving the production efficiency of automobile interior injection molding.

[0028] In a further preferred embodiment of the present invention, Figure 2-3 As shown, the transmission member 16 includes a vertical rod 17, which is fixedly connected to the top of the support block 5 away from the side of the lower mold platform 3, and the outer peripheral wall of the vertical rod 17 is fixedly connected to a chassis 18, and the top side of the chassis 18 is in contact with the bottom side of the slider 11.

[0029] In this embodiment, the vertical rod 17 is arranged to cooperate with the chassis 18 so that the bottom of the slider 11 is limited to prevent the slider 11 from colliding with the cutter 7 when the toggle shaft 15 moves downward. The vertical rod 17 is arranged as a support member and is fixedly connected to the support block 5 and the chassis 18, so as to limit the bottom of the slider 11.

[0030] In a further preferred embodiment of the present invention, Figure 2-3As shown, a baffle 19 is connected to the top of the vertical rod 17 , a return spring 20 is connected to the bottom of the baffle 19 , and the bottom end of the return spring 20 is fixedly connected to the top of the slider 11 .

[0031] In this embodiment, when the upper mold platform 4 moves upward, the toggle shaft 15 will be driven to move upward, and the toggle block will push the limit plate and the set slider 11 to move upward. As the slider 11 continues to move upward, the cutter 7 will be driven to shear the gate of the automobile interior injection molded part. At the same time, the return spring 20 will continuously increase the downward reaction force when it is continuously squeezed. After the upper mold platform 4 rises to the point where the shearing work of the cutter 7 is completed, the reaction force of the return spring 20 will push the slider 11 downward, so that the spring piece 14 is squeezed by the toggle shaft 15 and passes through the obstruction of the spring piece 14, and then the toggle shaft 15 moves upward with the upper mold platform 4, and the set slider 11 will be pushed downward by the return spring 20 to return to its original position, and at the same time, the slider 11 and the ball 12 will drive the vertical rod 9 to rotate in the opposite direction to drive the cutter 7 back to its original position, and then the injection molded part is taken out to complete the injection molding production of the automobile interior.

[0032] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A gate shearing device for automobile interior injection molding parts, comprising a base (1), a support rod (2), a lower mold platform (3) and an upper mold platform (4), wherein the support rod (2) is mounted on the top side of the base (1), and the lower mold platform (3) is slidably mounted on the two support rods (2), characterized in that: Support blocks (5) are installed on both sides of the lower die table (3); a support shaft (6) is rotatably installed on the top side of the support block (5); a cutter (7) is fixedly connected to the top side of the outer peripheral wall of the support shaft (6); and a driving member (8) is provided between the side of the upper die table (4) and the support shaft (6).

2. The gate shearing device for automobile interior molding according to claim 1 is characterized in that: The driving member (8) comprises a vertical rod (9), wherein the vertical rod (9) is fixedly mounted on the top side of the supporting shaft (6), and an arc groove (10) is formed on the outer peripheral wall of the vertical rod (9), wherein the arc groove (10) is arranged in a spiral shape.

3. The gate shearing device for automobile interior injection molding according to claim 2 is characterized in that: A slider (11) is slidably mounted on the outer peripheral wall of the vertical rod (9), a ball (12) is rotatably mounted on the inner side of the slider (11), and the ball (12) is slidably connected to the arc groove (10).

4. The gate shearing device for automobile interior molding according to claim 3 is characterized in that: The outer wall of the slider (11) is fixedly connected with a clamping block (13), and both inner walls of the clamping block (13) are provided with spring plates (14). A shifting shaft (15) is fixedly installed on the side of the upper die table (4) close to the vertical rod (9), and a transmission member (16) is provided on the top of the support block (5) away from the side of the lower die table (3).

5. The gate shearing device for automobile interior molding according to claim 4, characterized in that: The transmission member (16) comprises a vertical rod (17) which is fixedly connected to the top of the support block (5) at a side away from the lower die table (3); the outer peripheral wall of the vertical rod (17) is fixedly connected to a chassis (18); the top side of the chassis (18) is in contact with the bottom side of the slider (11).

6. The gate shearing device for automobile interior molding according to claim 5, characterized in that: The top end of the vertical rod (17) is connected to a baffle (19), the bottom side of the baffle (19) is connected to a return spring (20), and the bottom end of the return spring (20) is fixedly connected to the top end of the slider (11).

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