Preparation Equipment and Preparation Method for a Thermoplastic Plastic Product

By designing a thermoplastic product preparation equipment including a servo motor, a bidirectional screw, a first cutting knife and an airbag, the problem of the injection molding liquid dripping to form bumps is solved, efficient deconvexation and mold separation of the product is achieved, and the quality and operation convenience of the product are improved.

CN118893777BActive Publication Date: 2025-06-20HEBEI XINGYUAN PLASTIC PRODUCTS CO LTD
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Patent Information

Application Number
CN202310493693.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-05
Publication Date
2025-06-20
Estimated Expiration
2043-05-05

AI Technical Summary

Technical Problem

During the production of thermoplastic plastic products, the injection molding liquid remaining in the injection molding mouth will drip on the product, causing bumps to form on the surface, affecting the use effect and aesthetics.

Method used

A thermoplastic plastic product preparation equipment is designed, including a servo motor, a bidirectional screw, a first cutting knife and an airbag. The movement of the bidirectional screw and the first cutting knife is controlled by the servo motor, cutting and removing bumps, and at the same time, the airbag is used to enhance the air pressure and move the plastic product upward steadily.

Benefits of technology

The bumps formed by the injection molding liquid drops are effectively removed, which improves the use effect and beauty of the product, while simplifying the separation process between the product and the mold, reducing the difficulty of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a preparation device and a preparation method for thermoplastic plastic products. First support blocks and second support blocks are fixedly connected to both sides inside the preparation box. A servo motor drives a bidirectional lead screw to rotate through an output end. During the rotation of the bidirectional lead screw, the first cutting tool box first moves leftward along the reverse thread of the bidirectional lead screw. When it moves into the convex block, the inclined surface of the first cutting tool just abuts against one side of the convex block for cutting. When the first cutting tool moves to the left side of the mold, it moves upward along the inclined surface between it and the fixed block, pushing the fixed block downward. The second support block is controlled to squeeze the airbag, and the gas in the airbag is transported to the first groove through a trachea. Under the condition of increasing air pressure, the first support plate starts to control the mold to move upward evenly, realizing the taking of the mold. There is no need for workers to use other tools to separate the plastic product from the mold, which is convenient and labor-saving.
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Description

Technical Field

[0001] The present invention relates to the technical field of thermoplastic plastic products, and particularly relates to a preparation device and a preparation method for thermoplastic plastic products. Background Art

[0002] In the process of manufacturing thermoplastic plastic products, the injection liquid flows into the mold through the injection nozzle and begins to disperse in the mold. After the injection liquid cools, the required plastic products can be formed. However, when the injection nozzle finishes injecting the mold, the injection liquid remaining on the inner wall of the injection nozzle will drip down onto the plastic products. When the injection liquid solidifies, it is easy to form multiple bumps on the surface of the plastic products, thus affecting the use effect and aesthetics.

[0003] In order to solve the above problems, the present invention proposes a preparation device and a preparation method for thermoplastic plastic products. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a preparation device and a preparation method for thermoplastic plastic products to solve the technical problem of "in the process of manufacturing thermoplastic plastic products, the injection liquid flows into the mold through the injection nozzle and begins to disperse in the mold. After the injection liquid cools, the required plastic products can be formed. However, when the injection nozzle finishes injecting the mold, the injection liquid remaining on the inner wall of the injection nozzle will drip down onto the plastic products. When the injection liquid solidifies, it is easy to form multiple bumps on the surface of the plastic products, thus affecting the use effect and aesthetics" in the prior art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A preparation device for thermoplastic plastic products includes a preparation box. On both sides inside the preparation box, a first support block and a second support block are fixedly connected. A mold is fixedly connected between the first support block and the second support block. A first groove is formed at the center of the upper end surface of the mold. A plastic product is arranged inside the first groove. A first support plate is arranged on the lower end surface of the plastic product. Both sides of the first support plate slide inside the first groove. A second groove is formed at the upper left end of the mold. A second support plate is slidably connected inside the second groove;

[0006] A fixing block is fixedly connected to the upper end surface of the second support plate. One side of the fixing block is set as an inclined surface. A servo motor is fixedly connected inside the preparation box. An output end of the servo motor is installed and connected with a bidirectional lead screw. A first cutting knife is threadedly connected to the surface of the bidirectional lead screw. The left side of the first cutting knife is also set as an inclined surface. The fixing block abuts against one side of the first cutting knife. A first gear is fixedly connected to the surface of the bidirectional lead screw. The first gear is arranged in the left end direction of the bidirectional lead screw;

[0007] A cutting box is fixedly connected inside the preparation box. The left side surface of the cutting box is an inclined surface. The upper end surface of the cutting box and the lower end surface of the mold are on the same horizontal line. A blocking groove is formed inside the cutting box. An arc-shaped cutting groove is arranged inside the cutting box. Six-direction second cutting knives are fixedly connected at equal intervals inside the arc-shaped cutting groove. Each direction of the second cutting knives has a certain number.

[0008] As a preferred technical solution of the present invention, a gasbag is fixedly connected to the center of the lower end surface of the second support plate. Springs are arranged in the left and right directions of the gasbag.

[0009] As a preferred technical solution of the present invention, a cross shaft is fixedly connected between the second cutting knives. The cross shaft is rotatably connected to the side wall of the cutting box. One end of the cross shaft is fixedly connected with a second gear. The surface of the second gear is meshed and connected with the first gear.

[0010] As a preferred technical solution of the present invention, an injection molding machine is fixedly connected to the upper end surface of the preparation box. An injection nozzle is fixedly connected to the lower end surface of the injection molding machine. The top end of the injection nozzle penetrates through the upper end surface of the injection molding machine and is fixedly connected with the injection molding machine.

[0011] As a preferred technical solution of the present invention, a discharge pipe is fixedly connected inside the arc-shaped cutting groove. One end of the discharge pipe is fixedly connected with a filter screen. The filter screen is communicated with the arc-shaped cutting groove and the discharge pipe. The aperture inside the filter screen is 0.3 cm.

[0012] As a preferred technical solution of the present invention, the lower end surface of the first cutting knife is slidably connected with the upper end surface of the mold. The fixed block is slidably connected inside the second groove. A placement groove is formed inside the first support block. The placement groove and the upper end surface of the cutting box are in a vertically opposite position.

[0013] As a preferred technical solution of the present invention, the top end of the spring is fixedly connected to the lower end of the second support plate. The lower end surface of the gasbag is fixedly connected with a trachea. The trachea is communicated with the gasbag. The other end of the trachea is communicated with the inside of the first groove.

[0014] As a preferred technical solution of the present invention, the model of the servo motor is set as 5IK120RGN-CF. A threaded hole is formed inside the first cutting knife. The surface of the threaded hole is threadedly connected with the surface of the bidirectional lead screw.

[0015] The present invention also discloses a preparation method for thermoplastic plastic products, including the following steps

[0016] S1: By starting the servo motor, the servo motor can control the rotation of the bidirectional lead screw. During the rotation of the bidirectional lead screw, the first cutting tool is controlled to move leftward through the threaded connection with the first cutting tool. When one side of the inclined surface of the first cutting tool abuts into the convex block, the separation of the convex block from the plastic product is completed.

[0017] S2: When the first cutting tool moves to the upper end of the fixed block, under the action of the extrusion and downward pressure on the fixed block, the gas in the airbag starts to be transported to the first groove through the trachea. At this time, the air pressure in the first groove starts to increase, enabling the first support plate to evenly control the plastic product to move upward completely, higher than the horizontal plane of the mold, facilitating the staff to take it.

[0018] S3: At this time, the waste material cut by the first cutting tool enters the arc-shaped cutting groove smoothly through the placement groove. When the bidirectional lead screw moves to the right, the second gear drives the first gear, and starts to control the second cutting tool in the cross shaft to rotate rapidly to cut the waste material. At the same time, under the action of the filter screen, the cut waste material can be filtered, and then discharged through the discharge pipe, facilitating secondary utilization.

[0019] The present invention provides a preparation device and a preparation method for thermoplastic plastic products, having the following beneficial effects:

[0020] 1. The servo motor drives the bidirectional lead screw to rotate through the output end. During the rotation of the bidirectional lead screw, the first cutting tool box first moves leftward along the reverse thread of the bidirectional lead screw until it moves into the convex block. At this time, the inclined surface of the first cutting tool just abuts against one side of the convex block to cut it. At this time, the cutting tool starts to push the waste material to move leftward. When the first cutting tool moves to the left side of the mold, it moves upward along the inclined surface direction with the fixed block, pushing the fixed block downward, controlling the second support block to squeeze the airbag, and transporting the gas in the airbag to the first groove through the trachea. When the air pressure increases, the first support plate starts to control the mold to move upward evenly, realizing the taking of the mold, without the need for the staff to use other tools to separate the plastic product from the mold, which is convenient and labor-saving.

[0021] 2. When the first cutting tool controls the waste material to move to the leftmost side, the waste material starts to fall downward along the placement groove. When falling, it enters the arc-shaped cutting groove clockwise along the slope of the cutting box. At the same time, one side of the mold can limit the waste material. When the first cutting tool moves to the right, the first gear drives the second gear, enabling the second gear to control the second cutting tool to rotate rapidly to cut the waste material. After passing through the filter screen, the relatively fine waste material is discharged through the discharge pipe. At the same time, when it is convenient to clean the waste material, the cut waste material is convenient for the staff to use again, improving environmental protection. Description of the Drawings

[0022] Figure 1 Schematic three - dimensional structure diagram of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0023] Figure 2 Schematic structure diagram of the initial state of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0024] Figure 3 Schematic structure diagram of the first cutting knife cutting of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0025] Figure 4 Schematic structure diagram of the completion of cutting of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0026] Figure 5 Schematic structure diagram of the plastic product bulging upward of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0027] Figure 6 Schematic structure diagram of waste entering the arc - shaped cutting groove of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0028] Figure 7 Schematic structure diagram of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0029] Figure 8 Schematic top - view structure diagram of a preparation device for a thermoplastic plastic product proposed by the present invention;

[0030] Figure 9 Schematic side - view structure diagram of the second cutting knife of a preparation device for a thermoplastic plastic product proposed by the present invention.

[0031] In the figure: 1 preparation box, 2 horizontal axis, 3 servo motor, 4 first gear, 5 injection molding machine, 6 injection nozzle, 7 mold, 8 first groove, 9 plastic product, 10 second groove, 11 airbag, 12 spring, 13 second support plate, 14 fixed block, 15 air pipe, 16 first support plate, 17 first cutting knife, 18 bidirectional lead screw, 19 second gear, 20 discharge pipe, 21 placement groove, 22 cutting box, 23 arc - shaped cutting groove, 24 second cutting knife, 25 filter screen. Detailed implementation manners

[0032] The following further describes in detail the implementation manners of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0033] Reference Figures 1-9, the present invention provides a technical solution: a preparation device and a preparation method for a thermoplastic plastic product, including a preparation box 1. On both sides inside the preparation box 1, a first support block and a second support block are fixedly connected. Between the first support block and the second support block, a mold 7 is fixedly connected. At the center of the upper end face of the mold 7, a first groove 8 is formed. Inside the first groove 8, a plastic product 9 is arranged. At the lower end face of the plastic product 9, a first support plate 16 is arranged. By pushing the plastic product 9 upward, when the plastic product 9 is stressed evenly and higher than the horizontal line on the mold 7, it is convenient to take it.

[0034] On both sides of the first support plate 16, it slides inside the first groove 8. At the upper left end of the mold 7, a second groove 10 is opened. Inside the second groove 10, a second support plate 13 is slidably connected. At the upper end face of the second support plate 13, a fixed block 14 is fixedly connected. One side of the fixed block 14 is set as an inclined surface. Inside the preparation box 1, a servo motor 3 is fixedly connected. The servo motor 3 drives a bidirectional lead screw 18 to rotate through the output end, so that a first cutting knife 17 moves on the mold 7 to complete the cutting of the plastic product 9.

[0035] The output end of the servo motor 3 is installed and connected with a bidirectional lead screw 18. The surface of the bidirectional lead screw 18 is threadedly connected with a first cutting knife 17. The left side of the first cutting knife 17 is also set as an inclined surface. The fixed block 14 abuts against one side of the first cutting knife 17. On the surface of the bidirectional lead screw 18, a first gear 4 is fixedly connected. When the first gear 4 meshes with a second gear 19, it drives the second gear 19. The first gear 4 is arranged in the left end direction of the bidirectional lead screw 18;

[0036] Inside the preparation box 1, a cutting box 22 is fixedly connected. The left side surface of the cutting box 22 is set as an inclined surface. The upper end face of the cutting box 22 and the lower end face of the mold 7 are arranged on the same horizontal line. Inside the cutting box 22, a blocking groove is opened. Inside the cutting box 22, an arc-shaped cutting groove 23 is arranged. Inside the arc-shaped cutting groove 23, six-direction second cutting knives 24 are fixedly connected at equal intervals. Each direction of the second cutting knives 24 has 13.

[0037] One end of the second cutting knife 24 is relatively sharp. Each second cutting knife 24 is evenly distributed inside the cross shaft 2. When the cross shaft 2 continuously controls the second cutting knife 24 to rotate, the second cutting knife 24 quickly cuts the waste material inside the arc-shaped cutting groove 23, which is convenient for the dissolution and secondary utilization of the plastic.

[0038] Among them, at the center of the lower end face of the second support plate 13, an air bag 11 is fixedly connected. On the left and right directions of the air bag 11, springs 12 are arranged.

[0039] The air bag 11 can inhale the gas inside the first groove 8 into the air bag 11 under the negative pressure state, realizing the recycling of the gas. The spring 12 can help the air bag 11 quickly reset and be used again.

[0040] Among them, a horizontal shaft 2 is fixedly connected between the second cutting knives 24. The horizontal shaft 2 is rotatably connected to the side wall of the cutting box 22. One end of the horizontal shaft 2 is fixedly connected with a second gear 19, and the surface of the second gear 19 is meshed and connected with the first gear 4.

[0041] Among them, an injection molding machine 5 is fixedly connected to the upper end surface of the preparation box 1. The lower end surface of the injection molding machine 5 is fixedly connected with an injection nozzle 6. The top end of the injection nozzle 6 penetrates through the upper end surface of the injection molding machine 5 and is fixedly connected with the injection molding machine 5.

[0042] Among them, a discharge pipe 20 is fixedly connected in the arc-shaped cutting groove 23. One end of the discharge pipe 20 is fixedly connected with a filter screen 25. The filter screen 25 is communicated with the arc-shaped cutting groove 23 and the discharge pipe 20. The aperture in the filter screen 25 is 0.3 cm.

[0043] The filter screen 25 separates the cut waste, making the waste discharged in the discharge pipe 20 finer and facilitating secondary utilization.

[0044] Among them, the lower end surface of the first cutting knife 17 is slidably connected to the upper end surface of the mold 7. The fixed block 14 is slidably connected in the second groove 10. A placement groove 21 is formed in the first support block. The placement groove 21 and the upper end surface of the cutting box 22 are arranged in a vertically opposite position.

[0045] Among them, the top end of the spring 12 is fixedly connected to the lower end of the second support plate 13. The lower end surface of the airbag 11 is fixedly connected with an air pipe 15. The air pipe 15 is communicated with the airbag 11. The other end of the air pipe 15 is communicated with the inside of the first groove 8.

[0046] The first cutting knife 17 cuts the convex block by the rotation of the bidirectional lead screw 18.

[0047] Among them, the model of the servo motor 3 is set to 5IK120RGN-CF. A threaded hole is formed in the first cutting knife 17, and the surface of the bidirectional lead screw 18 is threadedly connected to the threaded hole.

[0048] The present invention also discloses a preparation method for thermoplastic plastic products, including the following steps

[0049] S1: By starting the servo motor 3, the servo motor 3 can control the rotation of the bidirectional lead screw 18. During the rotation of the bidirectional lead screw 18, the first cutting knife 17 is controlled to move leftward through the threaded connection with the first cutting knife 17. When one side of the inclined surface of the first cutting knife 17 abuts into the convex block, the separation of the convex block and the plastic product 9 is completed.

[0050] S2: When the first cutting knife 17 moves to the upper end of the fixed block 14, under the action of extrusion and downward pressure on the fixed block 14, the gas in the airbag 11 starts to be transported to the first groove 8 through the trachea 15. At this time, the air pressure in the first groove 8 starts to increase, enabling the first support plate 16 to evenly control the plastic product 9 to move upward completely, higher than the horizontal plane of the mold 7, facilitating the staff to take it.

[0051] S3: At this time, the waste material cut by the first cutting knife 17 enters the arc-shaped cutting groove 23 through the placement groove 21. When the bidirectional lead screw 18 moves to the right, the second gear 19 starts to control the second cutting knife 24 in the cross shaft 2 to rotate rapidly through the transmission of the first gear 4, cutting the waste material. At the same time, under the action of the filter screen 25, the cut waste material can be filtered and discharged through the discharge pipe 20 for secondary utilization.

[0052] When the device is in use, as Figure 1 shown, by starting the servo motor 3, the servo motor 3 drives the bidirectional lead screw 18 to rotate. During the rotation of the bidirectional lead screw 18, the first cutting knife 17 will move along the left thread in the bidirectional lead screw 18 until it abuts against the convex block on the surface of the plastic product 9, enabling the first cutting knife 17 to just cut the convex block using one side of the inclined plane. At this time, the convex block is separated from the plastic product 9 under the action of the first cutting knife 17.

[0053] When the first cutting knife 17 finishes cutting the convex block and continues to move to the left, when it moves to the leftmost side, the first cutting knife 17 moves upward through the inclined plane of the fixed block 14 and squeezes the fixed block 14 into the second groove 10. At this time, the second support plate 13 receives the pressure and starts to slide downward along the inner wall of the second groove 10. At the same time, the second support plate 13 forces the gas in the airbag 11 to be transported to the first groove 8 through the trachea 15. At this time, the airbag 11 is in a flat shape and the spring 12 starts to compress;

[0054] When the gas enters the first groove 8, the air pressure in the first groove 8 starts to increase, enabling the first support plate 16 to control the plastic product 9 to move upward along the inner wall of the first groove 8. The first support plate 16 is completely fitted with the inside of the first groove 8, enabling the gas in the airbag 11 to completely enter below the first support plate 16. When the first support plate 16 has sufficient pressure under uniform force to control the plastic product 9 to move upward completely, higher than the horizontal plane of the mold 7, it is convenient to take;

[0055] When the first cutting knife 17 moves to the left side of the mold 7 and squeezes the fixed block 14, through Figure 5, the cut waste begins to fall downward. The upper end of the cutting box 22 is set horizontally with the lower end of the mold 7, which can limit the falling waste and make the waste smoothly enter the arc-shaped cutting groove 23 along the inclined plane. When the servo motor 3 starts again, the first cutting knife 17 moves to the right again through the bidirectional lead screw 18 and realizes the rotation of the first gear 4. When the first cutting knife 17 begins to disengage from the upper end of the fixed block 14, the airbag 11 quickly sucks the gas in the first groove 8 back into the airbag 11 through the air pipe 15. At this time, the spring 12 begins to overcome gravity and quickly resets the second support plate 13 and the fixed block 14. The second gear 19 drives the rotation shaft to control the second cutting knife 24 to rotate quickly in the arc-shaped cutting groove 23 through the meshing connection of the first gear 4, and the waste is cut by multiple second cutting knives 24. At this time, when the specification of the cut waste is less than 0.3 cm, it begins to enter the discharge hole through the filter screen 25, which is convenient for the staff to dissolve the waste during secondary utilization.

[0056] It should be noted that when the first cutting knife 17 moves to the leftmost side, it will pause for 5 seconds to give the staff time to take the plastic product 9.

[0057] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

Claims

1. A preparation device for thermoplastic plastic products, comprising a preparation box (1), characterized in that, On both sides inside the preparation box (1), a first support block and a second support block are fixedly connected. A mold (7) is fixedly connected between the first support block and the second support block. At the center of the upper end surface of the mold (7), a first groove (8) is opened. A plastic product (9) is arranged in the first groove (8). A first support plate (16) is arranged on the lower end surface of the plastic product (9). Both sides of the first support plate (16) slide in the first groove (8). A second groove (10) is opened at the upper left end of the mold (7). A second support plate (13) is slidably connected in the second groove (10). A fixed block (14) is fixedly connected to the upper end surface of the second support plate (13). One side of the fixed block (14) is beveled. A servo motor (3) is fixedly connected inside the preparation box (1). The output end of the servo motor (3) is installed and connected with a bidirectional lead screw (18). A first cutting knife (17) is threadedly connected to the surface of the bidirectional lead screw (18). The left side of the first cutting knife (17) is also beveled. The fixed block (14) abuts against one side of the first cutting knife (17). A first gear (4) is fixedly connected to the surface of the bidirectional lead screw (18). The first gear (4) is arranged in the left end direction of the bidirectional lead screw (18). A cutting box (22) is fixedly connected inside the preparation box (1). The left side surface of the cutting box (22) is beveled. The upper end surface of the cutting box (22) and the lower end surface of the mold (7) are on the same horizontal line. A blocking groove is opened inside the cutting box (22). An arc-shaped cutting groove (23) is arranged inside the cutting box (22). Six-direction second cutting knives (24) are fixedly connected at equal intervals in the arc-shaped cutting groove (23). Each direction of the second cutting knives (24) has 13 pieces. An airbag (11) is fixedly connected to the center of the lower end surface of the second support plate (13). Springs (12) are arranged in the left and right directions of the airbag (11). A horizontal shaft (2) is fixedly connected between the second cutting knives (24). The horizontal shaft (2) is rotatably connected to the side wall of the cutting box (22). A second gear (19) is fixedly connected to one end of the horizontal shaft (2). The surface of the second gear (19) is meshed and connected with the first gear (4). A discharge pipe (20) is fixedly connected in the arc-shaped cutting groove (23). One end of the discharge pipe (20) is fixedly connected with a filter screen (25). The filter screen (25) is communicated with the arc-shaped cutting groove (23) and the discharge pipe (20). The aperture inside the filter screen (25) is 0.3 cm. The top end of the spring (12) is fixedly connected to the lower end of the second support plate (13). The lower end surface of the airbag (11) is fixedly connected with an air pipe (15). The air pipe (15) is communicated with the airbag (11). The other end of the air pipe (15) is communicated with the first groove (8). By moving the first cutting knife (17) to cut off the bump on the surface of the plastic product (9), at the same time, the movement of the first cutting knife (17) drives the fixed block (14) to move downward, thereby compressing the airbag (11) so that the first support plate (16) jacks up the plastic product (9), and the bump cut off by the first cutting knife (17) falls into the cutting box (22) for cutting.

2. The preparation device for thermoplastic plastic products according to claim 1, characterized in that, The upper end surface of the preparation box (1) is fixedly connected with an injection molding machine (5). The lower end surface of the injection molding machine (5) is fixedly connected with an injection nozzle (6). The top end of the injection nozzle (6) penetrates through the upper end surface of the injection molding machine (5) and is fixedly connected with the injection molding machine (5).

3. The preparation device for thermoplastic plastic products according to claim 1, characterized in that, The lower end surface of the first cutting knife (17) is slidably connected to the upper end surface of the mold (7). The fixed block (14) is slidably connected in the second groove (10). A placement groove (21) is formed in the first support block. The placement groove (21) and the upper end surface of the cutting box (22) are arranged in a vertically opposite position.

4. The preparation device for thermoplastic plastic products according to claim 1, characterized in that, The model of the servo motor (3) is set as 5IK120RGN-CF. A threaded hole is formed in the first cutting knife (17). The surface of the bidirectional lead screw (18) is threadedly connected to the threaded hole.

5. A preparation method for thermoplastic plastic products, using the preparation device for thermoplastic plastic products according to claim 3, characterized in that, including the following steps, S1: By starting the servo motor (3), the servo motor (3) controls the rotation of the bidirectional lead screw (18). During the rotation of the bidirectional lead screw (18), the first cutting knife (17) is controlled to move leftward through the threaded connection with the first cutting knife (17). When one side of the inclined surface of the first cutting knife (17) abuts into the bump, the separation of the bump from the plastic product (9) is completed; S2: When the first cutting knife (17) moves to the upper end of the fixed block (14), under the action of the extrusion and downward pressure on the fixed block (14), the gas in the airbag (11) starts to be transported to the first groove (8) through the air pipe (15). At this time, the air pressure in the first groove (8) starts to increase, so that the first support plate (16) evenly receives force to control the plastic product (9) to move upward completely, higher than the horizontal plane of the mold (7), facilitating the staff to take it. S3: At this time, the waste material cut by the first cutting knife (17) smoothly enters the arc-shaped cutting groove (23) through the placement groove (21). When the bidirectional lead screw (18) moves to the right, the second gear (19) starts to control the second cutting knife (24) in the cross shaft (2) to rotate rapidly through the transmission of the first gear (4) to cut the waste material. At the same time, under the action of the filter screen (25), the cut waste material is filtered and discharged through the discharge pipe (20) for secondary utilization.

Citation Information

Patent Citations

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    CN109435149A

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