Polishing device for water gap of plastic part

By designing an automated sprue grinding device for plastic parts, the problems of low efficiency, insufficient accuracy, and safety hazards caused by traditional manual grinding have been solved, achieving efficient and safe sprue grinding results.

CN223811928UActive Publication Date: 2026-01-20NENGDAO PRECISION ZHUHAI CO LTD
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Patent Information

Application Number
CN202520121341.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-01-20
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Traditional manual cutting and grinding of sprue marks on plastic parts has problems such as inaccurate grinding force, easy damage to products, low efficiency, insufficient precision, and safety hazards.

Method used

Design a plastic part sprue grinding device including a base plate, a motor, a grinding roller, a limiting plate and a clamping assembly. The plastic part is fixed by the clamping assembly, and the grinding roller is driven to rotate by the limiting groove and the driving assembly to realize the automated grinding of the sprue.

Benefits of technology

It improves grinding efficiency and accuracy, reduces the grinding defect rate, ensures production safety, and avoids the risks associated with manual handling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a plastic part water gap grinding device, and relates to the technical field of plastic part water gap grinding, the plastic part water gap grinding device comprises a bottom plate, a first motor, a grinding roller, a first limiting plate, a second limiting plate and a clamping assembly used for clamping and fixing a plastic part, and the first motor and the first limiting plate are both fixedly arranged on the bottom plate; the first motor drives the polishing roller to rotate, the second limiting plate is arranged on the bottom plate, the bottom plate, the first limiting plate and the second limiting plate are combined to form a limiting groove, and the polishing roller penetrates through the second limiting plate and extends into the limiting groove; according to the device, the clamping assembly is arranged to clamp and fix the plastic part, then the limiting groove is formed, the plastic part is further prevented from deviating or shaking in the grinding process, the ground plastic part is smooth and flat in surface, the grinding efficiency and accuracy are effectively improved, the grinding reject ratio is reduced, the plastic part does not need to be manually grabbed, and production safety is guaranteed.
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Description

TECHNICAL FIELD

[0001] The application relates to a plastic part water gap polishing device. BACKGROUND

[0002] In the manufacturing process of plastic parts, the water gap, as the excess material left during injection molding, has an unnegligible influence on the appearance and performance of the product. The traditional water gap removal method mainly relies on manual shearing and polishing. This method has the disadvantages of inaccurate polishing force, easy damage to the product, low efficiency, insufficient accuracy, and high waste rate, and manual polishing of the plastic part also has certain safety hazards. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a plastic part water gap polishing device, which can solve the technical problems of the traditional water gap removal method mainly relying on manual shearing and polishing, the inaccurate polishing force, the easy damage to the product, the low efficiency, the insufficient accuracy, the high waste rate, and the certain safety hazards of manual polishing of the plastic part.

[0004] The embodiment of the application provides a plastic part water gap polishing device, which comprises a bottom plate, a first motor, a polishing roller, a first limiting plate, a second limiting plate and a clamping assembly for clamping and fixing a plastic part. The first motor and the first limiting plate are fixedly arranged on the bottom plate. The first motor drives the polishing roller to rotate. The second limiting plate is arranged on the bottom plate. The bottom plate, the first limiting plate and the second limiting plate combine to form a limiting groove. The polishing roller passes through the second limiting plate and extends into the limiting groove. The bottom plate is provided with a first driving assembly for driving the clamping assembly to move.

[0005] The clamping assembly comprises a movable plate, a first mounting plate, a second mounting plate, a clamping plate, a first sliding rod and an elastic piece. The movable plate is movably arranged on the bottom plate. The first driving assembly drives the movable plate to move. The first mounting plate and the second mounting plate are fixedly arranged on the movable plate. The clamping plate is located between the first mounting plate and the second mounting plate. The first sliding rod is slidably arranged through the first mounting plate and is fixedly connected with the clamping plate. The elastic piece is pre-pressed between the first mounting plate and the clamping plate.

[0006] The first driving assembly comprises a second motor and a first screw rod, the first screw rod is rotatably arranged on the bottom plate through a bearing, the second motor drives the first screw rod to rotate, the movable plate is threadedly sleeved on the first screw rod, the bottom plate is provided with a sliding groove, and the movable plate is in limited sliding connection with the sliding groove.

[0007] The second limiting plate is movably arranged on the bottom plate, and the bottom plate is provided with a second driving assembly for driving the second limiting plate to move.

[0008] The second driving assembly comprises a third motor, a second screw rod, a second sliding rod, a screw sleeve and a sliding sleeve, the second screw rod is rotatably arranged on the bottom plate through a bearing, the third motor drives the second screw rod to rotate, the second sliding rod is fixedly arranged on the bottom plate, the screw sleeve is threadedly sleeved on the second screw rod, the sliding sleeve is slidably sleeved on the second sliding rod, and the screw sleeve and the sliding sleeve are fixedly connected with the second limiting plate.

[0009] The first limiting plate is fixedly provided with two baffles, the baffles pass through the second limiting plate, and the polishing roller is located between the two baffles.

[0010] The bottom plate is provided with a material discharging hole in communication with the limiting groove.

[0011] The top of the first limiting plate and the top of the second limiting plate are both provided with a giving part.

[0012] The first sliding rod is fixedly provided with a handle at an end, away from the clamping plate.

[0013] The outer wall of the second mounting plate and the outer wall of the clamping plate are both fixedly provided with a rubber layer.

[0014] The utility model discloses beneficial effect:

[0015] The utility model discloses a kind of plastic part water gap polishing devices, when using, the plastic part of water gap to be polished is inserted into limiting groove, and make the water gap position of plastic part and polishing roller abut, then through clamping assembly, plastic part is clamped and fixed, then open first motor and drive polishing roller rotation to the water gap of plastic part and polish, simultaneously, through first driving assembly, clamping assembly and plastic part are driven to move, to polish the water gap of all plastic parts;The device is clamped and fixed by setting clamping assembly to plastic part, further prevent plastic part from deviating or shaking when polishing by setting limiting groove, so that the surface of polished plastic part is smooth and flat, effectively improve polishing efficiency and accuracy, reduce polishing defective rate, and need not artificial grip plastic part, ensure production safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative effort based on these drawings.

[0017] Figure 1 is a schematic view of the overall top structure in some embodiments of the present application;

[0018] Figure 2 is a sectional view of the overall top structure in some embodiments of the present application;

[0019] Figure 3 is a sectional view of the overall front structure in some embodiments of the present application;

[0020] Figure 4 is a schematic view of the side structure of the second limiting plate in some embodiments of the present application.

[0021] The reference signs are as follows:

[0022] 1, bottom plate; 11, sliding groove; 12, discharge hole;

[0023] 2, first motor;

[0024] 3, polishing roller;

[0025] 4, first limiting plate; 41, baffle; 42, accommodation portion;

[0026] 5, second limiting plate;

[0027] 6, clamping assembly; 61, movable plate; 62, first mounting plate; 63, second mounting plate; 64, clamping plate; 65, first sliding rod; 66, elastic member; 67, handle;

[0028] 7, limiting groove;

[0029] 8, first driving assembly; 81, second motor; 82, first screw rod;

[0030] 9, second driving assembly; 91, third motor; 92, second screw rod; 93, second sliding rod; 94, screw sleeve; 95, sliding sleeve. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0033] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0035] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] For example, Figures 1 to 4As shown, this application provides a plastic part sprue grinding device, including a base plate 1, a first motor 2, a grinding roller 3, a first limiting plate 4, a second limiting plate 5, and a clamping assembly 6 for clamping and fixing the plastic part. The first motor 2 and the first limiting plate 4 are both fixedly mounted on the base plate 1. The first motor 2 drives the grinding roller 3 to rotate. The second limiting plate 5 is mounted on the base plate 1. The base plate 1, the first limiting plate 4, and the second limiting plate 5 are combined to form a limiting groove 7. The grinding roller 3 passes through the second limiting plate 5 and extends into the limiting groove 7. A first driving assembly 8 for driving the clamping assembly 6 to move is provided on the base plate 1.

[0038] In use, the plastic part with the sprue to be polished is inserted into the limiting groove 7, and the sprue position of the plastic part is made to abut against the polishing roller 3. Then, the plastic part is clamped and fixed by the clamping component 6. Then, the first motor 2 is turned on to drive the polishing roller 3 to rotate and polish the sprue of the plastic part. At the same time, the first drive component 8 drives the clamping component 6 and the plastic part to move, thereby polishing all the sprues of the plastic part.

[0039] The device clamps and fixes the plastic parts by setting the clamping component 6, and further prevents the plastic parts from shifting or shaking during grinding by setting the limiting groove 7, so that the surface of the ground plastic parts is smooth and flat, effectively improving grinding efficiency and accuracy, reducing the grinding defect rate, and eliminating the need for manual gripping of the plastic parts, thus ensuring production safety.

[0040] like Figures 1 to 3 As shown, in this embodiment, the clamping assembly 6 includes a movable plate 61, a first mounting plate 62, a second mounting plate 63, a clamping plate 64, a first sliding rod 65, and an elastic element 66. The movable plate 61 is movably disposed on the base plate 1. The first driving assembly 8 drives the movable plate 61 to move. The first mounting plate 62 and the second mounting plate 63 are both fixedly disposed on the movable plate 61. The clamping plate 64 is located between the first mounting plate 62 and the second mounting plate 63. The first sliding rod 65 slides through the first mounting plate 62 and is fixedly connected to the clamping plate 64. The elastic element 66 is pre-pressed between the first mounting plate 62 and the clamping plate 64.

[0041] In use, pull the first slide bar 65 upward to move the clamping plate 64 away from the second mounting plate 63. At this time, the elastic element 66 is stretched. Then, place the plastic part between the clamping plate 64 and the second mounting plate 63. Then release the first slide bar 65. Under the elastic force of the elastic element 66, the first slide bar 65 drives the clamping plate 64 to press down to press the plastic part against the second mounting plate 63, thus clamping and fixing the plastic part. The elastic element 66 is a spring.

[0042] like Figures 1 to 3As shown, in the embodiment, the first driving assembly 8 comprises a second motor 81 and a first screw rod 82, the first screw rod 82 is rotatably arranged on the bottom plate 1 through a bearing, the second motor 81 drives the first screw rod 82 to rotate, the movable plate 61 is threadedly sleeved on the first screw rod 82, the bottom plate 1 is provided with a sliding groove 11, and the movable plate 61 is limitingly and slidably connected with the sliding groove 11.

[0043] In use, the second motor 81 is turned on to drive the first screw rod 82 to rotate, and the first screw rod 82 drives the movable plate 61 to move; the movable plate 61 and the sliding groove 11 are used in cooperation to guide and limit the movable plate 61.

[0044] As shown in the drawings, Figures 1 to 4 In the embodiment, the second limiting plate 5 is movably arranged on the bottom plate 1, and the bottom plate 1 is provided with a second driving assembly 9 for driving the second limiting plate 5 to move; by arranging the second driving assembly 9 to drive the second limiting plate 5 to move, the size of the limiting groove 7 can be changed, so that the device is suitable for plastic parts of different thicknesses, and the versatility of the device is improved.

[0045] As shown in the drawings, Figures 1 to 4 In the embodiment, the second driving assembly 9 comprises a third motor 91, a second screw rod 92, a second sliding rod 93, a screw sleeve 94 and a sliding sleeve 95, the second screw rod 92 is rotatably arranged on the bottom plate 1 through a bearing, the third motor 91 drives the second screw rod 92 to rotate, the second sliding rod 93 is fixedly arranged on the bottom plate 1, the screw sleeve 94 is threadedly sleeved on the second screw rod 92, the sliding sleeve 95 is slidably sleeved on the second sliding rod 93, and the screw sleeve 94 and the sliding sleeve 95 are fixedly connected with the second limiting plate 5.

[0046] In use, the third motor 91 is turned on to drive the second screw rod 92 to rotate, the second screw rod 92 drives the screw sleeve 94 to move, and the screw sleeve 94 drives the second limiting plate 5 to move; the sliding sleeve 95 and the second sliding rod 93 are used in cooperation to guide and limit the second limiting plate 5.

[0047] As shown in the drawings, Figures 1 to 4 In the embodiment, two baffles 41 are fixedly arranged on the first limiting plate 4, the baffles 41 pass through the second limiting plate 5, and the grinding roller 3 is located between the two baffles 41; the baffles 41 can block the waste generated in the grinding process, reducing the splashing of the waste.

[0048] As shown in the drawings, Figures 1 to 4 In the embodiment, the bottom plate 1 is provided with a material discharge hole 12 communicating with the limiting groove 7; the material discharge hole 12 can collect the waste generated in the grinding process in time, avoid the accumulation of the waste, and facilitate subsequent cleaning and maintenance work.

[0049] As shown in the drawings, Figure 3As shown, in the embodiment, the top of the first limiting plate 4 and the top of the second limiting plate 5 are provided with a let-position part 42; by setting the let-position part 42, the limiting groove 7 is wide at the top and narrow at the bottom, which facilitates the operator to quickly put the plastic part into the limiting groove 7, and improves the use convenience.

[0050] As shown in Figure 1 and 3 As shown, in the embodiment, the first sliding rod 65 is fixedly provided with a handle 67 at one end away from the clamping plate 64; the handle 67 facilitates the operator to exert force to rotate the first sliding rod 65, and improves the use convenience.

[0051] In the embodiment, the outer wall of the second mounting plate 63 and the outer wall of the clamping plate 64 are fixedly provided with a rubber layer; the rubber layer plays a role of anti-skid, further prevents the plastic part from deviating or shaking during polishing, and improves the use stability.

[0052] Working principle: when the plastic part water gap polishing device provided by the application is used, the handle 67 is pulled upwards to drive the first sliding rod 65 to move, the first sliding rod 65 drives the clamping plate 64 to move away from the second mounting plate 63, at this time the elastic member 66 is stretched, then the plastic part with a water gap to be polished is placed between the clamping plate 64 and the second mounting plate 63, then the plastic part is inserted into the limiting groove 7, and the water gap position of the plastic part is abutted with the polishing roller 3, then the handle 67 is released, under the elastic force of the elastic member 66, the first sliding rod 65 drives the clamping plate 64 to press down to tightly press the plastic part on the second mounting plate 63, that is, the plastic part is clamped and fixed; then the first motor 2 is started to drive the polishing roller 3 to rotate to polish the water gap of the plastic part, at the same time, the second motor 81 is started to drive the first screw rod 82 to rotate, the first screw rod 82 drives the movable plate 61 to move, the movable plate 61 drives the clamping assembly 6 and the plastic part to move, so as to polish all the water gaps of the plastic part.

[0053] The above is only the preferred embodiment of the application and is not used to limit the application. For those skilled in the art, the application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A device for grinding sprues in plastic parts, characterized in that: The utility model provides a plastic polishing device, including bottom plate (1), first motor (2), polishing roller (3), first limit board (4), second limit board (5) and the clamping assembly (6) for clamping fixed plastic part, first motor (2) fixedly arranged on bottom plate (1), first motor (2) drives polishing roller (3) rotates, second limit board (5) is arranged on bottom plate (1), bottom plate (1), first limit board (4), second limit board (5) combination forms limit groove (7), polishing roller (3) passes through second limit board (5) and extends to limit groove (7) inside, bottom plate (1) is provided with first drive assembly (8) for driving clamping assembly (6) moves.

2. The apparatus of claim 1, wherein: The utility model provides a plastic polishing device, including bottom plate (1), first motor (2), polishing roller (3), first limit board (4), second limit board (5) and the clamping assembly (6) for clamping fixed plastic part, first motor (2) fixedly arranged on bottom plate (1), first motor (2) drives polishing roller (3) rotates, second limit board (5) is arranged on bottom plate (1), bottom plate (1), first limit board (4), second limit board (5) combination forms limit groove (7), polishing roller (3) passes through second limit board (5) and extends to limit groove (7) inside, bottom plate (1) is provided with first drive assembly (8) for driving clamping assembly (6) moves.

3. The apparatus of claim 2, wherein: The utility model provides a plastic polishing device, including bottom plate (1), first motor (2), polishing roller (3), first limit board (4), second limit board (5) and the clamping assembly (6) for clamping fixed plastic part, first motor (2) fixedly arranged on bottom plate (1), first motor (2) drives polishing roller (3) rotates, second limit board (5) is arranged on bottom plate (1), bottom plate (1), first limit board (4), second limit board (5) combination forms limit groove (7), polishing roller (3) passes through second limit board (5) and extends to limit groove (7) inside, bottom plate (1) is provided with first drive assembly (8) for driving clamping assembly (6) moves.

4. The apparatus of claim 1, wherein: The utility model provides a plastic polishing device, including bottom plate (1), first motor (2), polishing roller (3), first limit board (4), second limit board (5) and the clamping assembly (6) for clamping fixed plastic part, first motor (2) fixedly arranged on bottom plate (1), first motor (2) drives polishing roller (3) rotates, second limit board (5) is arranged on bottom plate (1), bottom plate (1), first limit board (4), second limit board (5) combination forms limit groove (7), polishing roller (3) passes through second limit board (5) and extends to limit groove (7) inside, bottom plate (1) is provided with first drive assembly (8) for driving clamping assembly (6) moves.

5. The apparatus of claim 4, wherein: The utility model provides a plastic polishing device, including bottom plate (1), first motor (2), polishing roller (3), first limit board (4), second limit board (5) and the clamping assembly (6) for clamping fixed plastic part, first motor (2) fixedly arranged on bottom plate (1), first motor (2) drives polishing roller (3) rotates, second limit board (5) is arranged on bottom plate (1), bottom plate (1), first limit board (4), second limit board (5) combination forms limit groove (7), polishing roller (3) passes through second limit board (5) and extends to limit groove (7) inside, bottom plate (1) is provided with first drive assembly (8) for driving clamping assembly (6) moves.

6. The apparatus of claim 1, wherein: Two baffle plates (41) are fixedly arranged on the first limiting plate (4), the baffle plates (41) pass through the second limiting plate (5), and the polishing roller (3) is located between the two baffle plates (41).

7. The apparatus of claim 1, wherein: The bottom plate (1) is provided with a discharging hole (12) in communication with the limiting groove (7).

8. The apparatus of claim 1, wherein: The top of the first limiting plate (4) and the top of the second limiting plate (5) are provided with a letting part (42).

9. The apparatus of claim 2, wherein: A handle (67) is fixedly arranged at one end of the first sliding rod (65) away from the clamping plate (64).

10. The apparatus of claim 2, wherein: The outer wall of the second mounting plate (63) and the outer wall of the clamping plate (64) are fixedly provided with a rubber layer.