Plastic tire injection mold

Abstract

The utility model discloses a plastic tire injection mold, and particularly relates to the technical field of injection molds, the plastic tire injection mold comprises a support frame, a shell is mounted on the left side of the support frame, and a polishing assembly is mounted in the shell; the grinding assembly comprises a motor, a rotating rod is installed at the output end of the motor, movable rods are installed at the two ends of the rotating rod, sliding blocks are fixedly connected to the front sides of the two movable rods, sliding rails are arranged on the outer sides of the two sliding blocks, and fixed rods are fixedly connected to the front sides of the two sliding blocks. Compared with the prior art, the polishing assembly is arranged, the rotating rod rotates to drive the two polishing discs to clamp the plastic tire, then the motor drives the plastic tire to rotate in the two polishing discs for polishing, the surface roughness of the plastic tire can be improved, the surface of the plastic tire is smooth, and the polishing effect is good. Therefore, the road holding force and the skid resistance of the toy tire are improved, the service life of the tire is prolonged, meanwhile, manual operation is reduced, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and more specifically, to a plastic tire injection mold. Background Art

[0002] A toy car is a kind of children's toy. It has the structural features and appearance of a car and can move on toy wheels. The toy wheels are also made to a high degree of simulation and are equipped with plastic tires. The plastic tires of these toy wheels are mass-produced using injection molds.

[0003] After the existing toy car tires are injection molded using molds, they mostly rely on natural cooling, and some rely on air cooling. However, the cooling rate is generally slow, and the injection mold cannot be cooled evenly, resulting in a long cooling molding time for the toy car tires, affecting production efficiency.

[0004] The utility model with publication number CN215619792U discloses a toy car tire injection cooling molding device. The position of the cooling oil tank can be conveniently adjusted and fixed through an adjustment mechanism, which not only ensures the normal progress of the injection molding operation, but also through the cooperation of the cooling oil tank and the heat sink, the injection mold can be quickly cooled from both sides.

[0005] When the above-mentioned toy car tire injection molding and cooling molding device is actually used, due to the long-term use of the mold, the mold will cause wear, so that some toy plastic tires may have burrs after injection molding, resulting in an uneven tire surface and reduced tire wear resistance. At the same time, manual labor is required to remove the burrs, which increases the production cost of the plastic tire. Utility Model Content

[0006] In order to overcome the above defects of the prior art, the utility model provides a plastic tire injection mold to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A plastic tire injection mold comprises a support frame, a shell is installed on the left side of the support frame, and a grinding component is installed inside the shell;

[0009] The grinding assembly includes a motor, a rotating rod is installed at the output end of the motor, movable rods are installed at both ends of the rotating rod, sliding blocks are fixedly connected to the front sides of the two movable rods, slide rails are arranged on the outer sides of the two sliding blocks, fixed rods are fixedly connected to the front sides of the two sliding blocks, moving rods are fixedly connected to one side of the two fixed rods, grinding discs are fixedly connected to one side of the two moving rods, a base is installed at the bottom of the support frame, an installation groove is opened inside the base, an electric push rod is installed inside the installation groove, a motor is installed on the top of the electric push rod, and a plastic tire is installed at the output end of the motor.

[0010] By adopting the above technical solution: the motor is fixedly connected to one side of the inner wall of the outer shell by screws, the rotating rod is installed on the output end of the motor, the two movable rods are fixedly plugged into the two ends of the rotating rod, the two sliding blocks are fixedly connected to one side of the movable rod, the inside of the two slide rails are slidably connected to the sliding blocks, the front sides of the two sliding blocks are fixedly connected to the fixed rod, the two movable rods are fixedly connected to one side of the fixed rod, one side of the two movable rods is welded and fixed to the grinding disc, the electric push rod is fixedly connected to the inner side of the mounting groove, the motor is installed on the top of the electric push rod, and the plastic tire is installed on the output end of the motor.

[0011] As a further description of the above technical solution: a lower mold is installed on the top of the base, two filter screens are installed on both sides of the support frame, and fans are installed on the opposite sides of the two filter screens.

[0012] By adopting the above technical solution: the lower mold is welded and fixed to the top of the base, the two filters are fixedly connected to the two sides of the support frame by screws, and the fan is installed on the opposite sides of the two filters.

[0013] As a further description of the above technical solution: a cylinder is fixedly connected to the top of the support frame, a push rod is installed at the bottom of the cylinder, a movable plate is installed on the outer side of the push rod, and a plurality of limit columns are installed inside the movable plate.

[0014] By adopting the above technical solution: the cylinder is installed on the top of the support frame, the push rod is installed on the bottom of the cylinder, the movable plate is installed on the outside of the push rod, and multiple limit columns are installed inside the movable plate and are symmetrically distributed inside the movable plate.

[0015] As a further description of the above technical solution: a telescopic spring is installed on the outer side of the top end of each of the plurality of limit columns, and a fixing plate is fixedly connected to the bottom end of each of the plurality of limit columns.

[0016] By adopting the above technical solution: telescopic springs are installed on the outer sides of the top ends of the plurality of limit columns, and the fixing plate is welded and fixed to the bottoms of the plurality of telescopic springs.

[0017] As a further description of the above technical solution: the outer side of the push rod is fixedly connected to the inner side of the movable plate, and the outer sides of the plurality of limit columns are movably connected to the inner side of the movable plate.

[0018] Technical effects and advantages of the utility model:

[0019] 1. By setting a grinding assembly, compared with the prior art, the rotating rod is used to rotate and drive two grinding discs to clamp the plastic tire, and then the motor is used to drive the plastic tire to rotate inside the two grinding discs for grinding, which can improve the surface roughness of the plastic tire and make the surface of the plastic tire smoother, thereby improving the grip and anti-skid performance of the toy tire, extending the service life of the tire, reducing manual operations, and saving production costs;

[0020] 2. By setting a movable plate, a limit column and a fan, compared with the prior art, the movable plate moves on the outside of multiple limit columns to provide a guide for the movement of the push rod, thereby reducing the mold closing error between the lower mold and the upper mold, thereby improving the accuracy of the product and facilitating greater stability during mold closing, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 This is a schematic diagram of the fan structure of the utility model.

[0023] Figure 3 This is a schematic diagram of the electric push rod structure of the utility model.

[0024] Figure 4 It is a schematic diagram of the shell structure of the utility model.

[0025] Figure 5 It is a schematic diagram of the rotating rod structure of the utility model.

[0026] The accompanying drawings are marked as follows: 1. support frame; 2. housing; 3. motor; 4. rotating rod; 5. movable rod; 6. sliding block; 7. slide rail; 8. fixed rod; 9. moving rod; 10. grinding disc; 11. base; 12. mounting groove; 13. electric push rod; 14. motor; 15. plastic tire; 16. lower mold; 17. filter; 18. fan; 19. cylinder; 20. push rod; 21. movable plate; 22. limit column; 23. telescopic spring; 24. fixed plate; 25. upper mold. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The embodiment of the present application discloses a plastic tire injection mold, comprising a support frame 1, a shell 2 is installed on the left side of the support frame 1, and a grinding component is installed inside the shell 2;

[0029] The grinding assembly includes a motor 3, a rotating rod 4 is installed at the output end of the motor 3, movable rods 5 are installed at both ends of the rotating rod 4, the front sides of the two movable rods 5 are fixedly connected with sliding blocks 6, the outer sides of the two sliding blocks 6 are provided with slide rails 7, the front sides of the two sliding blocks 6 are fixedly connected with fixed rods 8, one side of the two fixed rods 8 is fixedly connected with a moving rod 9, one side of the two moving rods 9 is fixedly connected with a grinding disc 10, a base 11 is installed at the bottom of the support frame 1, an installation groove 12 is opened inside the base 11, and an electric push rod 10 is installed inside the installation groove 12. Rod 13, a motor 14 is installed on the top of the electric push rod 13, and a plastic tire 15 is installed on the output end of the motor 14. The motor 3 drives the rotating rod 4 to drive the two movable rods 5 to move, and the two movable rods 5 drive the sliding blocks 6 to slide inside the slide rail 7, so that the two sliding blocks 6 drive the moving rods 9 to move, and the two moving rods 9 drive the two grinding discs 10 to clamp the plastic tire 15. The motor 14 drives the plastic tire 15 to rotate inside the grinding disc 10, so as to grind the burrs on the surface of the plastic tire 15.

[0030] Reference Figure 3 As shown, a lower mold 16 is installed on the top of the base 11, two filters 17 are installed on both sides of the support frame 1, and fans 18 are installed on the opposite sides of the two filters 17. The plastic tire 15 is cooled by the two fans 18 to prevent the mold from overheating and causing deformation or damage. The two filters 17 can prevent grinding burrs from entering the fan 18 and causing an impact.

[0031] Reference Figure 2 As shown, a cylinder 19 is fixedly connected to the top of the support frame 1, a push rod 20 is installed at the bottom of the cylinder 19, a movable plate 21 is installed on the outer side of the push rod 20, and a plurality of limit columns 22 are installed inside the movable plate 21. The outer side of the push rod 20 is fixedly connected to the inside of the movable plate 21, and the outer sides of the plurality of limit columns 22 are movably connected to the inside of the movable plate 21. The push rod 20 is used to push the upper mold 25 to close the mold with the lower mold 16. The movable plate 21 moves inside and with the plurality of movable plates 21 to prevent the push rod 20 from deflecting when pushing the upper mold 25 to close the mold, which is beneficial to improving the injection molding production accuracy.

[0032] Reference Figure 4 As shown, telescopic springs 23 are installed on the outer sides of the top ends of the plurality of limit columns 22, and the bottoms of the plurality of limit columns 22 are fixedly connected with fixed plates 24. The plurality of telescopic springs 23 can buffer the impact of the contraction of the movable plate 21 and reduce the impact and damage to the cylinder.

[0033] Working principle of the utility model: The utility model designs a plastic tire injection mold, the specific structure is as shown in the attached manual Figure 1-5 As shown, in the technical solution, through the mutual cooperation between various structures, the cylinder 19 is first started, and the cylinder 19 pushes the upper mold 25 and the lower mold 16 to inject the plastic tire 15 through the push rod 20, and the movable plate 21 is moved by the push rod 20. A plurality of limit columns 22 limit the movement of the movable plate 21, so that the push rod 20 can move more stably and prevent the push rod 20 from driving the upper mold 25 to deviate. Then, the push rod 20 is retracted through the rebound of a plurality of telescopic springs 23. When the injection of the plastic tire 15 is completed, the electric push rod 13 is started, and the electric push rod 13 is used to push the motor 14 to move upward, so that the plastic tire 15 can be separated from the lower mold 16. The fan 18 and the motor 14 are started in sequence, and the motor 14 is used to drive the plastic tire 15 to rotate. The two fans 18 can cool down the surface of the plastic tire 15 while the plastic tire 15 rotates. When burrs appear on the surface of the plastic tire 15 and need to be polished, the motor 3 is started, and the motor 3 is used to drive the rotating rod 4 to rotate. The rotating rod 4 drives the two sliding blocks 6 to move through the two movable rods 5. The two slide rails 7 are convenient for supporting the sliding blocks 6 to move, so that the two sliding blocks 6 move and drive the two moving rods 9 to move. Then the two moving rods 9 drive the grinding disc 10 to clamp the plastic tire 15. Finally, the motor 14 drives the plastic tire 15 to rotate inside the two grinding discs 10 for grinding.

[0034] Among them, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0035] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A plastic tire injection mold, comprising a support frame (1), characterized in that: A shell (2) is installed on the left side of the support frame (1), and a grinding component is installed inside the shell (2); The grinding assembly comprises a motor (3), a rotating rod (4) is installed at the output end of the motor (3), movable rods (5) are installed at both ends of the rotating rod (4), the front sides of the two movable rods (5) are fixedly connected with sliding blocks (6), the outer sides of the two sliding blocks (6) are provided with slide rails (7), the front sides of the two sliding blocks (6) are fixedly connected with fixed rods (8), one side of the two fixed rods (8) is fixedly connected with a moving rod (9), one side of the two moving rods (9) is fixedly connected with a grinding disc (10), a base (11) is installed at the bottom of the support frame (1), a mounting groove (12) is opened inside the base (11), an electric push rod (13) is installed inside the mounting groove (12), a motor (14) is installed on the top of the electric push rod (13), and a plastic tire (15) is installed at the output end of the motor (14).

2. A plastic tire injection mold according to claim 1, characterized in that: A lower mold (16) is installed on the top of the base (11), two filter screens (17) are installed on both sides of the support frame (1), fans (18) are installed on the opposite sides of the two filter screens (17), and the multiple filter screens (17) are detachably connected to the two sides of the support frame (1) by screws.

3. The plastic tire injection mold according to claim 1, characterized in that: The top of the support frame (1) is fixedly connected to a cylinder (19), the bottom of the cylinder (19) is provided with a push rod (20), the outer side of the push rod (20) is provided with a movable plate (21), and the interior of the movable plate (21) is provided with a plurality of limit columns (22).

4. A plastic tire injection mold according to claim 3, characterized in that: A telescopic spring (23) is installed on the outer side of the top end of each of the plurality of limit columns (22), and a fixing plate (24) is fixedly connected to the bottom end of each of the plurality of limit columns (22).

5. The plastic tire injection mold according to claim 3, characterized in that: The bottom of the push rod (20) is fixedly connected to an upper mold (25), and the top of the upper mold (25) is fixedly welded to a limiting column (22).

6. The plastic tire injection mold according to claim 1, characterized in that: The motor (3) is fixedly connected to one side of the inner wall of the housing (2) by means of screws, one side of the two movable rods (5) is plugged and fixed to the two ends of the rotating rod (4), and the two sliding blocks (6) are slidably connected to the inside of the slide rail (7).

7. The plastic tire injection mold according to claim 3, characterized in that: The outer side of the push rod (20) is fixedly connected to the inside of the movable plate (21), and the outer sides of the plurality of limit posts (22) are movably connected to the inside of the movable plate (21).

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