Plastic product burr smoothing device

Abstract

The utility model discloses a plastic product burr grinding device which comprises a workbench and a grinding brush, the grinding brush is arranged on the workbench through a support, a driving motor for driving the grinding brush to rotate is arranged at one end of the support, the grinding brush comprises a hollow cylinder and a plurality of bristle sets arranged on the outer wall of the hollow cylinder in the length direction of the hollow cylinder, and the bristle sets are arranged on the outer wall of the hollow cylinder. A hollow ring is arranged at the end, away from the driving motor, of the hollow cylinder, a connecting plate is arranged on the hollow ring in a sliding mode, a scraping ring is arranged at the end, away from the hollow ring, of the connecting plate, and the bristle set is sleeved with the scraping ring; a sliding rod in sliding fit with the guide groove is arranged on one side of the connecting plate, after a traditional polishing brush is used, part of burr waste residues are also likely to be mixed into the polishing brush, the follow-up polishing effect is affected, and the polishing brush can be conveniently cleaned.

Description

Technical Field

[0001] This utility model relates to the technical field of burr removal equipment for plastic products, and in particular to a burr grinding device for plastic products. Background Technology

[0002] Plastic products are a general term for daily and industrial products made primarily from plastic. They include all products manufactured using processes such as injection molding and vacuum forming. During the molding process, gaps inevitably exist between molds, which can lead to burrs on the molded plastic products. These burrs directly affect the subsequent production of the plastic products.

[0003] Chinese utility model patent CN208713611U discloses a deburring device for plastic products, including a worktable. Two sets of support rods are symmetrically connected to the upper left side of the worktable. The upper ends of the four support rods are connected to a top plate. An electric hydraulic cylinder is installed on the upper end of the top plate. The electric hydraulic cylinder passes through the top plate via a hydraulic rod and extends downwards to connect to a connecting plate. An L-shaped connecting rod is connected to the lower end of the connecting plate. A U-shaped block is connected to the end of the L-shaped connecting rod away from the connecting plate. A rotating shaft passes through the U-shaped block and extends into the inner cavity to connect to a grinding brush. A second support plate is connected to the outer side of the worktable. A suction box is connected to the upper perimeter of the second support plate via support columns. Suction fans are equidistantly connected to the right side of the suction box. This utility model facilitates the uniform removal of burrs from the outer side of plastic products and facilitates the recycling of debris. However, after use, some burr residue can easily mix into the grinding brush, affecting the subsequent grinding effect. Utility Model Content

[0004] The purpose of this invention is to provide a device for smoothing burrs on plastic products, which facilitates the cleaning of the grinding brush.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a plastic product burr smoothing device, including a worktable and a grinding brush, wherein the grinding brush is mounted on the worktable by a bracket, and a drive motor for driving the grinding brush to rotate is provided at one end of the bracket. The grinding brush includes a hollow cylinder and a bristle group arranged along its length on its outer wall. Several bristle groups are arranged equidistantly along the circumference of the hollow cylinder. A hollow ring is provided at the end of the hollow cylinder away from the drive motor. A connecting plate is slidably mounted on the hollow ring. A scraper ring is provided at the end of the connecting plate away from the hollow ring. The scraper ring is sleeved on the outside of the bristle group. A guide block is provided on the bracket, and a guide groove is provided on the guide block. A sliding rod that slidably engages with the guide groove is provided on one side of the connecting plate.

[0006] Preferably, an air pump is provided on the outer wall of the support, and the output end of the air pump is connected to the hollow ring through a main air pipe. A support block is provided on the scraper ring along its length direction. An opening is provided on one side of the support block, and a branch pipe communicating with the opening is provided on the other side of the support block. A telescopic air pipe is connected to the hollow ring and communicates with the branch pipe.

[0007] Preferably, the output end of the air pump is provided with a rotary joint that communicates with one end of the main air pipe.

[0008] Preferably, one end of the connecting plate is provided with a telescopic spring, and the end of the telescopic spring away from the connecting plate is connected to the outer wall of the hollow ring.

[0009] Preferably, the inner wall of the scraper ring is provided with a toothed comb.

[0010] Preferably, the bracket is provided with a push cylinder, and the top end of the piston rod of the push cylinder is connected to the guide block.

[0011] The beneficial effects of this utility model are as follows: By arranging several groups of brush bristles along the circumference of the outer wall of the hollow cylinder, and fitting scraper rings on the outer wall of each brush bristle group, a hollow ring is set at one end of the hollow cylinder, and a connecting plate is slidably mounted on the hollow ring and connected to the scraper ring. A guide block with a guide groove is set on the support, and a sliding rod that slides in cooperation with the guide groove is set on one side of the connecting plate. When the hollow cylinder rotates, the sliding rod can enter the guide groove, pulling the connecting plate away from the hollow ring, so that the scraper ring can scrape and clean the brush bristles fitted on it. Compared with the prior art, this utility model eliminates the need for manual cleaning of the brush bristles on the polishing brush, reducing the amount of cleaning labor. At the same time, by using a support block on the scraper ring in conjunction with an air pump, the brush bristles can be further cleaned by air jets when the scraper ring slides, which more effectively blows away the waste attached to the brush bristles and improves the cleaning effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram illustrating a portion of the mechanism on the workbench in one embodiment of the present invention;

[0013] Figure 2 This is a schematic diagram of a single display bracket mechanism in one embodiment of the present invention.

[0014] Figure 3 This is a schematic diagram illustrating the external structure of the hollow cylinder in one embodiment of the present invention;

[0015] Figure 4 This is a structural schematic diagram illustrating the upper part of the hollow cylinder mechanism in one embodiment of the present invention;

[0016] Figure 5This is a schematic diagram illustrating a portion of the mechanism at the hollow ring in one embodiment of the present invention.

[0017] Reference numerals: 1. Workbench; 2. Support; 3. Motor; 4. Brush assembly; 5. Hollow cylinder; 6. Scraper ring; 7. Hollow ring; 8. Connecting plate; 9. Guide block; 10. Guide groove; 11. Slide rod; 12. Air pump; 13. Main air pipe; 14. Support block; 15. Branch pipe; 16. Opening; 17. Rotary joint; 18. Telescopic spring; 19. Toothed comb; 20. Cylinder; 21. Telescopic air pipe. Detailed Implementation

[0018] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0019] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0020] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0021] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figures 1 to 5As shown, a burr-grinding device for plastic products includes a worktable 1, a support 2 on the worktable 1, and a grinding brush rotatably mounted on the support 2. The grinding brush includes a hollow cylinder 5 rotatably connected to the support 2 and bristle groups 4 on its outer wall. Several groups of bristle groups 4 are arranged equidistantly along the circumference of the hollow cylinder 5. A drive motor 3 connected to the hollow cylinder 5 is mounted at one end of the outer wall of the support 2. A hollow ring 7 is mounted at the left end of the outer wall of the hollow cylinder 5. Several groups of L-shaped connecting plates 8 are arranged along the circumference of the left side of the hollow ring 7. The lower end of the connecting plate 8 is slidably connected to the outer wall of the hollow ring 7, and a telescopic spring 18 is mounted at the lower end of the connecting plate 8. The end of the telescopic spring 18 away from the connecting plate 8 is connected to the outer wall of the hollow ring 7. Each bristle group 4 is fitted with a U-shaped scraper ring 6. The upper end of the plate 8 is connected to one side of the outer wall of the scraper ring 6. Support blocks 14 are arranged vertically opposite each other on the side of the scraper ring 6 away from the hollow cylinder 5. Openings 16 are opened on the side of the two sets of support blocks 14 that are close to each other. An air pump 12 is arranged on the outer wall of the bracket 2. The output end of the air pump 12 is connected to the hollow ring 7 through the main air pipe 13. Branch pipes 15 that communicate with the openings 16 are arranged on the side of the two sets of support blocks 14 that are far apart from each other. A telescopic air pipe 21 is connected to the branch pipe 15. A rotary joint 17 is arranged on the output end of the air pump 12 and is connected to one end of the main air pipe 13. The purpose is that when the hollow ring 7 rotates and drives the main air pipe 13, it will not drive the air pump 12 to rotate synchronously. A toothed comb 19 is arranged on the inner wall of the scraper ring 6. The purpose is to clean the bristle group 4.

[0023] A guide block 9 is radially arranged along the hollow cylinder 5 on the inner wall of the bracket 2 on the side away from the motor 3. An arc-shaped guide groove 10 is provided on the side of the guide block 9 facing the motor 3. A slide rod 11 is provided on the outer wall of the connecting plate 8, which slides in cooperation with the guide groove 10. The purpose is to allow the slide rod 11 to slide into the guide groove 10 and drive the connecting plate 8 to move along the guide range of the guide groove 10. A cylinder 20 is provided on the outer wall of the bracket 2. The top of the piston rod of the cylinder 20 is connected to the side of the guide block 9 away from the hollow cylinder 5. The purpose is to allow the cylinder 20 to retract and drive the guide block 9 away from the hollow cylinder 5 when there is no sliding between the slide rod 11 and the guide groove 10, so that the slide rod 11 on the connecting plate 8 does not slide with the guide groove 10.

[0024] When the brush assembly 4 does not need to be cleaned, the air pump 12 is stopped, the scraper ring 6 is located at the outer wall of the hollow cylinder 5, and the cylinder 20 is in the retracted state. At this time, the brush assembly 4 can rotate around the central axis of the hollow cylinder 5 under the drive of the motor 3 to polish the burrs on the plastic surface.

[0025] When excessive debris adheres to the bristle assembly 4, the operator temporarily slows down the motor 3. Simultaneously, the cylinder 20 extends, allowing the slide rod 11 to enter the guide groove 10. At the same time, the air pump 12 starts supplying air, which is discharged through the opening 16 to blow away the debris from the bristle assembly 4. Meanwhile, each connecting plate 8 passes through the guide block 9 in sequence, and the slide rod 11 on it enters the guide groove 10 in sequence. Driven by the guide groove 10, the slide rod 8 moves away from the center of the hollow cylinder 5, causing the connecting plate 8 to be pulled away from the hollow cylinder 5. During the movement, the scraper ring 6 moves towards the outside of the hollow cylinder 5, cleaning the bristle assembly 4 through the inner wall and the toothed comb 19. When the slide rod 11 disengages from the guide groove 10, the telescopic spring 18 begins to pull back and reset, causing the connecting plate 8 to move back, and the scraper ring 6 connected to it to re-fit against the outer wall of the hollow cylinder 5. This reduces the need for manual cleaning of debris on the surface of the bristle assembly 4 and lowers the workload of personnel.

[0026] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A device for smoothing burrs on plastic products, comprising a worktable (1) and a polishing brush, wherein the polishing brush is mounted on the worktable (1) via a bracket (2), and a drive motor (3) for driving the polishing brush to rotate is provided at one end of the bracket (2). Its features are, The polishing brush includes a hollow cylinder (5) and a bristle group (4) arranged on its outer wall along its length. The bristle group (4) is provided in several places and is equidistantly arranged along the circumference of the hollow cylinder (5). A hollow ring (7) is provided at the end of the hollow cylinder (5) away from the drive motor (3), and a connecting plate (8) is slidably provided on the hollow ring (7); A scraper ring (6) is provided at the end of the connecting plate (8) away from the hollow ring (7), and the scraper ring (6) is sleeved on the outside of the bristle assembly (4); The bracket (2) is provided with a guide block (9), the guide block (9) is provided with a guide groove (10), and the connecting plate (8) is provided with a slide rod (11) that slides in cooperation with the guide groove (10) on one side.

2. The burr-grinding device for plastic products according to claim 1, characterized in that, An air pump (12) is provided on the outer wall of the bracket (2). The output end of the air pump (12) is connected to the hollow ring (7) through the main air pipe (13). A support block (14) is provided on the scraper ring (6) along its length. An opening (16) is provided on one side of the support block (14). A branch pipe (15) communicating with the opening (16) is provided on the other side of the support block (14). A telescopic air pipe (21) is connected to the hollow ring (7) and communicates with the branch pipe (15).

3. The burr-grinding device for plastic products according to claim 2, characterized in that, The output end of the air pump (12) is provided with a rotary joint (17) that is connected to one end of the main air pipe (13).

4. The burr-grinding device for plastic products according to claim 1, characterized in that, One end of the connecting plate (8) is provided with a telescopic spring (18), and the end of the telescopic spring (18) away from the connecting plate (8) is connected to the outer wall of the hollow ring (7).

5. The burr-grinding device for plastic products according to claim 1, characterized in that, The inner wall of the scraper ring (6) is provided with a toothed comb (19).

6. The burr-grinding device for plastic products according to claim 1, characterized in that, The support (2) is provided with a push cylinder (20), and the top end of the piston rod of the push cylinder (20) is connected to the guide block (9).

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