A high-efficiency polishing wheel set for removing plastic burrs

Abstract

The utility model discloses a kind of high-efficiency plastic burr removal polishing wheel groups, it is related to plastic deburring technical field.The utility model includes two rows of rotating columns that are rotationally cooperated in processing box, and two rows of rotating columns are arranged staggeredly;Rotating column is located in the section of processing box inside and is compounded with elastic deformation layer, and the circumference of elastic deformation layer is circumferentially arrayed with multiple polishing strips;Rotating column is located in the section of processing box outside and is equipped with synchronous wheel.The utility model is through the deformation characteristics of two rows of staggered rotating column and its elastic deformation layer, so that the fit between polishing strip and workpiece is more closely, and with certain elasticity, workpiece damage can also be reduced, workpiece is rotated by combining workpiece clamping mechanism drive, it is convenient to carry out circumferential polishing to remove plastic burr to workpiece, by multiple polishing strips respectively contact workpiece inner wall top and outer wall top two sides, reduce the probability that the debris generated in polishing process is accumulated in the position of polishing strip and workpiece contact.

Description

Technical Field

[0001] This utility model belongs to the field of plastic deburring, specifically, it relates to a grinding wheel set for efficiently removing plastic burrs. Background Technology

[0002] Plastic deburring refers to the process of removing excess or irregular protrusions (i.e., burrs) from the edges or surfaces of plastic products during molding and processing, through various techniques, in order to improve the appearance quality, safety, and compatibility of the products with subsequent processing.

[0003] Chinese Patent Publication No. CN218225920U discloses a deburring device, comprising: a base, a clamp on the base capable of holding and horizontally moving a tubular plastic product to be deburred, and a grinding unit on the base along the horizontal movement direction of the plastic product capable of simultaneously deburring the inner and outer walls of the tubular end of the plastic product. This application achieves the grinding process by extending the tubular end of the plastic product into the grinding unit, so that the inner and outer circumferences of the workpiece simultaneously contact the grinding disc, thereby utilizing the rotation of the grinding unit. However, during the grinding process, the generated plastic debris easily accumulates in the receiving groove. On the one hand, the debris easily interferes with the grinding operation in the contact area between the grinding disc and the workpiece, leading to a decrease in grinding quality; on the other hand, when the amount of debris accumulation is too large, it can easily obstruct the insertion operation of the workpiece. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a grinding wheel set for efficiently removing plastic burrs, thus solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency grinding wheel set for removing plastic burrs is arranged inside a processing chamber. A workpiece clamping mechanism is installed on one side of the processing chamber. The grinding wheel set includes:

[0007] Two rows of rotating columns are rotatably fitted inside the processing box, and the two rows of rotating columns are arranged alternately; a section of the rotating column inside the processing box is composite with an elastic deformation layer, and multiple grinding strips are arranged in a circular array on the periphery of the elastic deformation layer; a section of the rotating column outside the processing box is equipped with a synchronous pulley; wherein, both rows of synchronous pulleys are driven and fitted with synchronous belts, and a first gear is provided on one of the synchronous pulleys in each row;

[0008] A rotary drive mechanism fixed to the outer wall of the processing box; and

[0009] The gear ring has two first gears meshing with the inner wall of the gear ring, and the output end of the rotary drive mechanism meshes with the outer wall of the gear ring.

[0010] Optionally, tensioning mechanisms are installed on the upper and lower parts of the processing box away from the workpiece clamping mechanism. The two tensioning mechanisms are symmetrically arranged and each abuts against a synchronous belt. The tensioning mechanism includes a first electric push rod installed on one side of the processing box. The output shaft of the first electric push rod is fixedly fitted with a connecting frame. Multiple transversely distributed pressure wheels are rotatably fitted on one side of the connecting frame, and the pressure wheels are staggered with the corresponding synchronous wheels.

[0011] Optionally, the workpiece clamping mechanism includes a support platform mounted on one side of the processing box, a drive assembly slidably fitted on the support platform, and a pressing assembly that clamps the workpiece in cooperation with the drive assembly. A tube-passing seat is slidably fitted on the support platform, and the tube-passing seat has multiple tube-passing holes equidistantly distributed laterally. The drive assembly is mounted on the upper side of the tube-passing seat, and the pressing assembly is mounted on the lower part of the tube-passing seat on the side near the processing box.

[0012] Optionally, the end of the grinding strip away from the timing wheel is provided with a chamfer for being pressed when the workpiece is inserted.

[0013] Optionally, a fan is embedded in the top of the treatment box, a guide shroud is provided on the lower side of the inner wall of the treatment box around the air outlet of the fan, a collecting funnel corresponding to the guide shroud is provided at the bottom of the treatment box, a collection box is provided at the bottom of the collecting funnel, and a filter screen is embedded on one side of the collection box.

[0014] Optionally, the upper rotating column is equipped with a grinding ring for grinding the end face of the workpiece on the circumference of the inner wall of the processing box.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0016] The deformation characteristics of the two rows of staggered rotating columns and their elastic deformation layers make the contact between the grinding strips and the workpiece closer and more elastic, which can also reduce damage to the workpiece. Combined with the workpiece clamping mechanism to drive the workpiece to rotate, it is convenient to perform circumferential grinding to remove plastic burrs. By having multiple grinding strips contact the top of the inner wall and the top two sides of the outer wall of the workpiece respectively, the probability of debris generated during the grinding process accumulating at the contact position between the grinding strips and the workpiece is reduced, thereby reducing the probability of debris affecting the grinding quality of the workpiece or the insertion into the processing box. The rotary drive mechanism drives the gear ring to synchronously drive the two first gears, and uses the synchronous belt to drive the entire row of synchronous pulleys, so that the two rows of rotating columns rotate at high speed and synchronously, improving the grinding efficiency and uniformity of plastic burrs.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the processing box and the workpiece clamping mechanism.

[0020] Figure 2 This is a schematic diagram of the internal structure of the processing box;

[0021] Figure 3 A schematic diagram of the structure of the grinding strip and grinding ring;

[0022] Figure 4 This is a schematic diagram of the drive assembly and the extrusion assembly.

[0023] Figure 5 This is a schematic diagram of the tensioning mechanism and the rotary drive mechanism.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] Processing box 1, collecting funnel 2, collecting box 3, filter screen 4, support platform 5, support leg 6, pipe seat 7, fan 8, flow guide 9, rotating column 10, elastic deformation layer 11, grinding strip 12, inlet pipe hole 13, pipe hole 14, slide groove 15, synchronous pulley 16, synchronous belt 17, pressure wheel 18, connecting frame 19, first electric push rod 20, first gear 21, rotary drive mechanism 22, gear ring 23, workpiece clamping mechanism 24, first motor 25, rod body 26, rotating plate 27, screw 28, sliding block 29, bearing seat 30, third motor 31, second motor 32, third electric push rod 33, second sliding plate 34, second V-shaped frame 35, driven roller 36, connecting plate 37, first V-shaped frame 38, second electric push rod 39, first sliding plate 40, driving roller 41, tensioning mechanism 42, drive assembly 43, extrusion assembly 44, grinding ring 45, second gear 46.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please see Figure 1-5As shown, this embodiment provides a high-efficiency grinding wheel set for removing plastic burrs, which is arranged inside a processing box 1. A workpiece clamping mechanism 24 is installed on one side of the processing box 1. The grinding wheel set includes:

[0029] Two rows of rotating columns 10 are rotatably fitted inside the processing box 1, and the two rows of rotating columns 10 are arranged alternately. A section of the rotating column 10 inside the processing box 1 is composite with an elastic deformation layer 11. The elastic deformation layer 11 has a Shore hardness of 50A to 70A and a compression set of ≤15%. The circumferential array of the elastic deformation layer 11 has multiple grinding strips 12, and the number of grinding strips 12 is 8 to 10. A section of the rotating column 10 outside the processing box 1 is provided with a synchronous pulley 16. The synchronous pulley 16 is made of polyurethane, with a tooth pitch of 5mm, a width of 15 to 20mm, and a thickness of 1 / 3 to 1 / 2 of the width. Both rows of synchronous pulleys 16 are driven by synchronous belts 17, and each synchronous pulley 16 in each row is provided with a first gear 21.

[0030] A rotary drive mechanism 22 fixed to the outer wall of the processing box 1; and

[0031] A gear ring 23 has several teeth on both its inner and outer circumferential walls. A rotating plate 27 is mounted on one end face of the gear ring 23, and a rod 26 is mounted on one side of the rotating plate 27. The gear ring 23 is located on the circumference of the rod 26. A bearing is mounted on the circumference of one end of the rod 26, and the bearing is embedded in one side of the processing box 1. The rod 26 is located between two first gears 21, both of which mesh with the inner wall of the gear ring 23. The output end of the rotary drive mechanism 22 meshes with the outer wall of the gear ring 23. Optionally, the rotary drive mechanism 22 includes a first motor 25 and a second gear 46. The first motor 25 is mounted on one side of the processing box 1 and rotates at a speed of 800-1200 rpm. The second gear 46 is fixedly fitted on the output shaft of the first motor 25 and meshes with the outer wall of the gear ring 23.

[0032] One application of this embodiment is as follows: The workpiece clamping mechanism 24 clamps multiple workpieces simultaneously and sends one end of all workpieces into the processing box 1, so that the end of the workpiece is sleeved on the lower row of rotating columns 10. The grinding strips 12 on the rotating columns 10 are pressed against the inner wall of the workpiece under the pressure of the elastic deformation layer 11. At this time, the grinding strips 12 on the lower row of rotating columns 10 abut against the top of the inner wall of the workpiece, while the grinding strips 12 on the two adjacent rotating columns 10 in the upper row abut against the top two sides of the outer wall of the workpiece. The rotary drive mechanism 22 is started to drive the gear ring 23 to rotate. The gear ring 23 rotates at the same time, driving the two first gears 21 to rotate. Under the transmission action of the synchronous belt 17, the two rows of rotating columns 10 rotate. While the rotating columns 10 are rotating, the grinding strips 12 located on the periphery of the rotating columns 10 grind the plastic burrs on the inner and outer surfaces of the workpiece. At the same time, the workpiece clamping mechanism 24 drives the workpiece to rotate and adjust the area to be ground, so that the equipment grinds the end of the workpiece evenly. It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0033] The deformation characteristics of the two rows of staggered rotating columns 10 and their elastic deformation layer 11 make the contact between the grinding strip 12 and the workpiece closer and more elastic, which can also reduce damage to the workpiece. Combined with the workpiece clamping mechanism 24 driving the workpiece to rotate, it is convenient to perform circumferential grinding to remove plastic burrs from the workpiece. By having multiple grinding strips 12 contact the top of the inner wall and the top two sides of the outer wall of the workpiece respectively, the probability of debris generated during the grinding process accumulating at the contact position between the grinding strip 12 and the workpiece is reduced, thereby reducing the probability of debris affecting the grinding quality of the workpiece or the insertion into the processing box 1. The rotary drive mechanism 22 drives the gear ring 23 to synchronously drive the two first gears 21, and uses the synchronous belt 17 to drive the entire row of synchronous pulleys 16, so that the two rows of rotating columns 10 rotate at high speed and synchronously, improving the grinding efficiency and uniformity of plastic burrs.

[0034] like Figure 5 As shown, in this embodiment, tensioning mechanisms 42 are installed on both the upper and lower parts of the processing box 1 away from the workpiece clamping mechanism 24, and the two tensioning mechanisms 42 are symmetrically arranged, each abutting against a synchronous belt 17. Optionally, the tensioning mechanism 42 includes a first electric push rod 20 installed on one side of the processing box 1. The output shaft of the first electric push rod 20 is fixedly fitted with a connecting frame 19. A plurality of transversely equidistant pressure rollers 18 are rotatably fitted on one side of the connecting frame 19, and the pressure rollers 18 are staggered with the corresponding synchronous pulleys 16. By extending the first electric push rod 20 to push the connecting frame 19 to move, the pressure rollers 18 squeeze the area of ​​the synchronous belt 17 between the two synchronous pulleys 16, thereby dynamically adjusting the tension of the synchronous belt 17, increasing the wrap angle between the synchronous belt 17 and the synchronous pulleys 16, and reducing the probability of the synchronous pulleys 16 slipping.

[0035] like Figure 4As shown, the workpiece clamping mechanism 24 of this embodiment includes a support platform 5 mounted on one side of the processing box 1, support legs 6 mounted on both sides of the processing box 1 and under the support platform 5, a drive assembly 43 slidably fitted on the support platform 5, and a pressing assembly 44 that cooperates with the drive assembly 43 to clamp the workpiece. Optionally, the drive assembly 43 includes a second electric push rod 39, the output shaft of the second electric push rod 39 is fixedly fitted with a connecting plate 37, a first V-shaped frame 38 is mounted under the connecting plate 37, first sliding plates 40 are mounted at both ends of the lower part of the first V-shaped frame 38, a plurality of second motors 32 are mounted on one side of the first sliding plate 40, the second motors 32 are self-locking motors with miniature electromagnetic brakes, the output shaft of the second motors 32 is fixedly fitted with a drive roller 41, the first sliding plate 40 is vertically provided with a plurality of first movable slots, the first movable slots penetrate the first sliding plate 40, and the drive roller 41 is rotatably fitted in the middle of the first movable slot. Optionally, the extrusion assembly 44 includes a third electric push rod 33. The output shaft of the third electric push rod 33 is fixedly fitted with a second sliding plate 34. Multiple second V-shaped frames 35 are mounted on the second sliding plate 34. Each of the upper ends of the second V-shaped frame 35 has a second movable groove. A shaft is rotatably fitted in the second movable groove. Driven rollers 36 are mounted around the shaft. The surfaces of the driving roller 41 and the driven rollers 36 are both coated with a rubber layer. When clamping the workpiece, the second electric push rod 39 is controlled to retract and the third electric push rod 33 is controlled to extend, so that the driving roller 41 and the driven rollers 36 move closer to each other. The workpiece is clamped at three points using the driving roller 41 and the two driven rollers 36. Then, the driving roller 41 is driven to rotate by starting the second motor 32, so as to realize automatic clamping and rotation adjustment of the workpiece, improving the stability of workpiece clamping and the convenience of circumferential rotation adjustment.

[0036] like Figure 1 , 3As shown, in this embodiment, a tube-through seat 7 is slidably fitted on the support platform 5. The tube-through seat 7 has a plurality of tube-through holes 14 evenly distributed laterally. The tube-through holes 14 are located between the driving roller 41 and the two corresponding driven rollers 36. The processing box 1 has an inlet hole 13 corresponding to the tube-through holes 14 on one side. The inlet hole 13 is connected to the inner cavity of the processing box 1. The second electric push rod 39 is installed on the upper side of the tube-through seat 7, and the third electric push rod 33 is installed on the lower part of the tube-through seat 7 near the processing box 1. Optionally, the support platform 5 has a vertically provided sliding groove 15 that penetrates the support platform 5. A sliding block 29 is installed on the lower side of the tube-through seat 7 and slidably fitted in the sliding groove 15. A third motor 31 and a bearing seat 30 are installed below the support platform 5. The output shaft of the third motor 31 is fixedly fitted with a screw 28. One end of the screw 28 is rotatably fitted in the bearing seat 30. The lower part of the sliding block 29 is threadedly fitted on the periphery of the screw 28. The lateral position of the tube seat 7 is adjusted by starting the third motor 31 to drive the screw 28, which is convenient to adapt to the clamping and grinding requirements of workpieces of different lengths. At the same time, it is convenient to insert or pull the end of the workpiece into or out of the processing box 1. The corresponding design of the tube hole 14 and the inlet hole 13 reduces the risk of workpiece deflection when it is sent into the processing box 1. Combined with the guiding effect of the sliding block 29 and the slide 15, the straightness accuracy of the workpiece conveying is improved.

[0037] like Figure 2 , 3 As shown, in this embodiment, the end of the grinding strip 12 furthest from the synchronous wheel 16 is provided with a chamfer for being squeezed when the workpiece is inserted. The chamfer is 30° to 45° and the length of the chamfer is 1 / 10 to 1 / 8 of the total length of the grinding strip 12. By providing a chamfer at the end of the grinding strip 12, it is easier to smoothly squeeze the elastic deformation layer 11 when the workpiece is inserted, reducing the risk of scratches on the workpiece surface.

[0038] like Figure 1 , 2 As shown, a fan 8 is embedded in the top of the processing box 1 in this embodiment, and the air volume of the fan 8 is 50-80 m³ / h. 3 / h, a guide shroud 9 is provided on the lower inner wall of the processing box 1, located around the air outlet of the blower 8. Through the cooperation of the blower 8 and the guide shroud 9, the grinding debris is easily blown in a direction to the bottom of the processing box 1, maintaining the cleanliness of the grinding area environment.

[0039] like Figure 1 , 2 As shown, in this embodiment, the bottom of the processing box 1 is provided with a collecting funnel 2 corresponding to the flow guide shroud 9, and the bottom of the collecting funnel 2 is provided with a collection box 3. Both the processing box 1 and the collection box 3 are connected to the collecting funnel 2. A filter screen 4 is embedded on one side of the collection box 3, and a sealed box door is hinged to the other side. The debris is collected by the collecting funnel 2 and introduced into the collection box 3, which facilitates the unified cleaning of the debris. The filter screen 4 realizes the separation of airflow and debris, and at the same time, the sealed box door facilitates the cleaning of debris intercepted in the collection box 3.

[0040] like Figure 2 , 3 As shown, in this embodiment, the upper rotating column 10 is equipped with a grinding ring 45 for grinding the end face of the workpiece near the inner wall of the processing box 1. By adding the grinding ring 45, it is convenient for the rotating column 10 to grind the burrs on the end face of the workpiece simultaneously during rotation, thereby improving the integrity of the workpiece end processing.

[0041] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A high-efficiency grinding wheel set for removing plastic burrs, arranged inside a processing box (1), wherein a workpiece clamping mechanism (24) is installed on one side of the processing box (1), characterized in that, The grinding wheel set includes: Two rows of rotating columns (10) are rotatably fitted inside the processing box (1), and the two rows of rotating columns (10) are arranged alternately; a section of the rotating column (10) inside the processing box (1) is composite with an elastic deformation layer (11), and multiple grinding strips (12) are arranged in a circular array on the periphery of the elastic deformation layer (11); a section of the rotating column (10) outside the processing box (1) is provided with a synchronous pulley (16); wherein, a synchronous belt (17) is driven and fitted on both rows of synchronous pulleys (16), and a first gear (21) is provided on one of the synchronous pulleys (16) in each row; A rotary drive mechanism (22) fixed to the outer wall of the processing box (1); and The gear ring (23) has two first gears (21) meshing with the inner wall of the gear ring (23), and the output end of the rotary drive mechanism (22) meshes with the outer wall of the gear ring (23).

2. The grinding wheel set for efficiently removing plastic burrs according to claim 1, characterized in that, Tensioning mechanisms (42) are installed on the upper and lower parts of the processing box (1) on the side away from the workpiece clamping mechanism (24), and the two tensioning mechanisms (42) are symmetrically arranged and each is in contact with a synchronous belt (17).

3. The grinding wheel set for efficiently removing plastic burrs according to claim 2, characterized in that, The tensioning mechanism (42) includes a first electric push rod (20) installed on one side of the processing box (1). The output shaft of the first electric push rod (20) is fixedly fitted with a connecting frame (19). A plurality of transversely distributed pressure wheels (18) are rotatably fitted on one side of the connecting frame (19), and the pressure wheels (18) and the corresponding synchronous wheels (16) are arranged alternately.

4. The grinding wheel set for efficiently removing plastic burrs according to claim 1, characterized in that, The workpiece clamping mechanism (24) includes a support platform (5) mounted on one side of the processing box (1), a drive assembly (43) slidably fitted on the support platform (5), and a pressing assembly (44) that cooperates with the drive assembly (43) to clamp the workpiece.

5. A grinding wheel set for efficiently removing plastic burrs according to claim 4, characterized in that, The support platform (5) has a sliding fitting of a tube seat (7). The tube seat (7) has multiple tube holes (14) distributed at equal intervals in the transverse direction. The drive assembly (43) is installed on the upper side of the tube seat (7), and the extrusion assembly (44) is installed on the lower part of the tube seat (7) near the processing box (1).

6. The grinding wheel set for efficiently removing plastic burrs according to claim 1, characterized in that, The end of the grinding strip (12) away from the synchronous wheel (16) is provided with a chamfer for being squeezed when the workpiece is inserted.

7. The grinding wheel set for efficiently removing plastic burrs according to claim 1, characterized in that, A fan (8) is installed on the top of the treatment box (1), and a guide shroud (9) is provided on the lower side of the inner wall of the treatment box (1) around the air outlet of the fan (8).

8. A grinding wheel set for efficiently removing plastic burrs according to claim 7, characterized in that, The bottom of the treatment box (1) is provided with a collecting funnel (2) corresponding to the guide shroud (9), and the bottom of the collecting funnel (2) is provided with a collection box (3), and a filter screen (4) is embedded on one side of the collection box (3).

9. A grinding wheel set for efficiently removing plastic burrs according to claim 1, characterized in that, The upper rotating column (10) is equipped with a grinding ring (45) for grinding the end face of the workpiece near the inner wall of the processing box (1).

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