Rubber grinding and trimming device

Abstract

The utility model discloses a rubber grinding flash device, and relates to the technical field of rubber grinding equipment, the rubber grinding flash device comprises a rack and a grinding barrel, the grinding barrel is rotatably connected with the rack, the top of the grinding barrel is provided with a spraying assembly, the bottom of the grinding barrel is provided with a screening assembly, the spraying assembly comprises a rotating mechanism, a ring pipe and a corrugated pipe, and the ring pipe is connected with the corrugated pipe. The rotating mechanism is connected with the grinding barrel, the annular pipe is connected with the rotating mechanism, one end of the corrugated pipe is connected with an external water source, the other end of the corrugated pipe is communicated with the annular pipe, a plurality of spray heads are annularly arrayed on the annular pipe, and the spray heads face the interior of the grinding barrel. Manual water adding is not needed, efficiency is improved, and labor intensity is reduced; and meanwhile, the grinding barrel is cleaned, and residues are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber grinding equipment, in particular to a rubber grinding flash device. Background Art

[0002] The reasons for the formation of flash on molded rubber products include unreasonable mold structure, improper processing technology, low processing accuracy, unclean parting surface of mold deformation, excessive glue filling, etc. The formation of flash on the parting surface of rubber products not only causes material waste and increased process costs, but also affects product performance and causes environmental pollution.

[0003] The existing grinding of rubber flash adopts an eddy current grinder, which uses the eddy current flow principle to make the rubber part and the grinding stone achieve rapid and sufficient friction to complete the grinding of the flash.

[0004] The grinding degree of rubber parts can be controlled by adjusting the speed of the turbine turntable. Generally speaking, the higher the speed, the finer the grinding degree, but too high a speed may also cause excessive wear and heat accumulation of the abrasive and rubber parts. It is necessary to add an appropriate amount of water to cool and lubricate the grinding state to prevent the abrasive from overheating, wear and damage to the rubber parts. The existing way of adding water is mostly manual, which is time-consuming and labor-intensive.

[0005] At the same time, after the grinding is completed, some of the abrasives and rubber parts will remain at the bottom of the barrel after being poured out from the grinding barrel, which is not easy to pour out. At the same time, there will be some sewage stains on the inner wall of the barrel after grinding, which is more troublesome to clean manually.

[0006] Therefore, there is an urgent need for a rubber grinding flash device to improve the cleaning efficiency of the grinding barrel and reduce manpower. Utility Model Content

[0007] The utility model aims to provide a rubber flash grinding device to solve the problems existing in the background technology.

[0008] The purpose of this utility model is achieved through the following technical solutions:

[0009] A rubber flash grinding device comprises a frame and a grinding barrel, wherein the grinding barrel is rotatably connected to the frame, a spray assembly is provided on the top of the grinding barrel, a screening assembly is provided on the bottom of the grinding barrel, the spray assembly comprises a rotating mechanism, an annular tube and a bellows, the rotating mechanism is connected to the grinding barrel, the annular tube is connected to the rotating mechanism, one end of the bellows is connected to an external water source, the other end of the bellows is communicated with the annular tube, a plurality of nozzles are arranged in an annular array on the annular tube, and the nozzles face into the grinding barrel.

[0010] Furthermore, the rotating mechanism includes a bearing, a gear ring, a gear and a motor, the outside of the grinding barrel is interference fit with the inner ring of the bearing, the inner ring of the gear ring is interference fit with the outer ring of the bearing, the gear is meshed with the gear ring, the motor shaft of the motor is connected to the gear, and the ring tube is fixed on the gear ring.

[0011] Furthermore, the gear is located behind the grinding barrel, a connecting plate is provided below the grinding barrel corresponding to the gear, a motor seat of the motor is fixed below the connecting plate, and a motor shaft of the motor passes through the connecting plate.

[0012] Furthermore, the screening assembly includes a bracket, a first sieve plate, a second sieve plate and a water receiving box, the first sieve plate, the second sieve plate and the water receiving box are arranged in sequence from top to bottom in the bracket, and the bracket is provided with support plates on both sides of the bottom corresponding to the first sieve plate, the second sieve plate and the water receiving box.

[0013] Furthermore, the aperture diameter of the sieve holes of the first sieve plate is larger than the diameter of the abrasive and smaller than the diameter of the rubber member, and the aperture diameter of the sieve holes of the second sieve plate is smaller than the diameter of the abrasive.

[0014] Furthermore, the highest point of the screening assembly is lower than the bottom of the grinding barrel, and casters are provided at the bottom of the bracket.

[0015] Furthermore, the bellows is located behind the grinding barrel, and a pressure pump is provided between the bellows and an external water source.

[0016] The beneficial effects of the utility model are:

[0017] 1) No need to add water manually, improve efficiency and reduce labor intensity. The bellows is connected to the external water source, the ring pipe is filled with water, and the water is sprayed into the grinding barrel through the nozzle to cool and lubricate the abrasive and rubber parts, preventing the abrasive from overheating, wear and damage to the rubber parts.

[0018] 2) Clean the grinding barrel to reduce residue. The nozzle rotates around the grinding barrel to spray, improving the cleaning effect of the barrel wall and cleaning the barrel bottom at the same time. Finally, the water flow drives the residual abrasive and rubber parts into the screening component.

[0019] 3) Improve screening efficiency through screening components and collect accumulated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a rear view of a rubber flash grinding device of the utility model;

[0021] Figure 2 This is a top view of a rubber flash grinding device of the utility model;

[0022] In the figure, 1-frame, 2-grinding barrel, 3-spraying assembly, 301-bearing, 302-gear ring, 303-gear, 304-motor, 305-connecting plate, 306-annular pipe, 307-sprinkler, 308-bellows, 4-screening assembly, 401-bracket, 402-first sieve plate, 403-second sieve plate, 404-water collecting box, 405-castor, 406-support plate. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 2 , the utility model provides a technical solution:

[0025] like Figure 1-Figure 2 As shown, a rubber flash grinding device includes a frame 1 and a grinding barrel 2, the grinding barrel 2 is rotatably connected to the frame 1, a spray assembly 3 is provided on the top of the grinding barrel 2, a screening assembly 4 is provided on the bottom of the grinding barrel 2, the spray assembly 3 includes a rotating mechanism, an annular pipe 306 and a bellows 308, the rotating mechanism is connected to the grinding barrel 2, the annular pipe 306 is connected to the rotating mechanism, one end of the bellows 308 is connected to an external water source, the other end of the bellows 308 is communicated with the annular pipe 306, a plurality of nozzles 307 are arranged in an annular array on the annular pipe 306, and the nozzles 307 are facing the inside of the grinding barrel 2.

[0026] Through the above technical solution, the rubber parts and abrasives to be ground are put into the grinding barrel 2, and the grinding degree of the rubber parts is controlled by adjusting the rotation speed of the transmission assembly in the grinding barrel 2. At this time, the bellows 308 is connected to the external water source, the ring tube 306 is filled with water, and the water is sprayed into the grinding barrel 2 through the nozzle 307 to cool and lubricate the abrasives and rubber parts, prevent the abrasives from overheating, wear and damage to the rubber parts, reduce labor, and improve the spraying efficiency.

[0027] After grinding is completed, the grinding barrel 2 is rotated to pour the abrasive and rubber parts in the barrel into the screening component 4 for screening. At this time, the rotating mechanism is started to drive the nozzle 307 to rotate around the grinding barrel 2 to spray, thereby improving the cleaning effect of the barrel wall of the grinding barrel 2 and cleaning the barrel bottom at the same time. Finally, the water flow drives the remaining abrasive and rubber parts to flow into the screening component 4.

[0028] like Figure 1As shown, the annular tube 306 is connected to the nozzle 307 through a branch pipe, and the nozzle 307 extends into the grinding barrel 2. The angle of the nozzle 307 can be adjusted to facilitate the nozzle 307 to spray into the inner wall and bottom of the grinding barrel 2. Figure 2 As shown, there are five nozzles 307 arranged in a circumferential array on the annular tube 306 , among which the positions near the front of the grinding barrel 2 are staggered and no nozzles 307 are arranged, so as to facilitate the subsequent pouring out of the abrasive and rubber parts from the grinding barrel 2 .

[0029] Furthermore, the rotating mechanism includes a bearing 301, a ring gear 302, a gear 303 and a motor 304, the outer portion of the grinding barrel 2 is interference fit with the inner ring of the bearing 301, the inner ring of the ring gear 302 is interference fit with the outer ring of the bearing 301, the gear 303 is meshed with the ring gear 302, the motor 304 shaft of the motor 304 is connected to the gear 303, and the ring tube 306 is fixed on the ring gear 302.

[0030] Through the above technical solution, the motor 304 drives the gear 303 to rotate, and the gear 303 drives the meshing ring gear 302 to rotate. Since the ring gear 302 rotates relative to the grinding barrel 2 through the bearing 301, and the annular tube 306 and the nozzle 307 are fixed on the ring gear 302, after the ring gear 302 rotates, the nozzle 307 is driven to rotate, thereby increasing the coverage area of ​​the nozzle 307 spraying.

[0031] Furthermore, the gear 303 is located behind the grinding barrel 2 , and a connecting plate 305 is provided below the grinding barrel 2 corresponding to the gear 303 . The motor 304 seat of the motor 304 is fixed below the connecting plate 305 , and the motor 304 shaft of the motor 304 passes through the connecting plate 305 .

[0032] Through the above technical solution, the connecting plate 305 supports the motor 304 and the gear 303, and the motor 304 and the gear 303 are located at the rear of the grinding barrel 2, which does not affect the subsequent pouring out of the abrasive and rubber parts from the grinding barrel 2.

[0033] Furthermore, the screening assembly 4 includes a bracket 401, a first sieve plate 402, a second sieve plate 403 and a water receiving box 404, and the first sieve plate 402, the second sieve plate 403 and the water receiving box 404 are arranged in sequence from top to bottom in the bracket 401, and support plates 406 are provided on both sides of the bottom of the bracket 401 corresponding to the first sieve plate 402, the second sieve plate 403 and the water receiving box 404.

[0034] Furthermore, the aperture of the sieve hole of the first sieve plate 402 is larger than the diameter of the abrasive and smaller than the diameter of the rubber member, and the aperture of the sieve hole of the second sieve plate 403 is smaller than the diameter of the abrasive.

[0035] Through the above technical solution, the rubber parts, abrasives and accumulated water poured out from the grinding barrel 2 first enter the first sieve plate 402. Since the sieve hole diameter of the first sieve plate 402 is larger than the diameter of the abrasive and smaller than the diameter of the rubber parts, the rubber parts after grinding remain in the first sieve plate 402, and the abrasives and accumulated water flow into the second sieve plate 403; at the same time, the sieve hole diameter of the second sieve plate 403 is smaller than the diameter of the abrasive. At this time, the abrasive remains in the second sieve plate 403, and the accumulated water finally flows into the water receiving box 404 to be collected.

[0036] Furthermore, the highest point of the screening assembly 4 is lower than the bottom of the grinding barrel 2 , and casters 405 are provided at the bottom of the bracket 401 .

[0037] Through the above technical solution, the highest point of the screening component 4 is lower than the bottom of the grinding barrel 2, which will not affect the interference with the screening component 4 when the grinding barrel 2 is flipped. At the same time, the casters 405 are used to conveniently push the bracket 401 and the first sieve plate 402, the second sieve plate 403 and the water receiving box 404 in the bracket 401 to move, thereby reducing labor and improving transportation efficiency.

[0038] Furthermore, the bellows 308 is located at the rear of the grinding barrel 2, and a pressure pump is provided between the bellows 308 and an external water source.

[0039] Through the above technical solution, the water pressure entering the bellows 308 and the annular tube 306 is increased by the pressure pump, ensuring that when cleaning the grinding barrel 2, the water flow sprayed by the nozzle 307 can flush the inner wall of the grinding barrel 2 clean.

[0040] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be protected by the claims attached to the utility model.

Claims

1. A rubber flash grinding device, comprising a frame (1) and a grinding barrel (2), wherein the grinding barrel (2) is rotatably connected to the frame (1), and characterized in that: A spray assembly (3) is provided on the top of the grinding barrel (2), and a screening assembly (4) is provided on the bottom of the grinding barrel (2). The spray assembly (3) comprises a rotating mechanism, an annular tube (306) and a bellows (308). The rotating mechanism is connected to the grinding barrel (2), and the annular tube (306) is connected to the rotating mechanism. One end of the bellows (308) is connected to an external water source, and the other end of the bellows (308) is in communication with the annular tube (306). A plurality of spray heads (307) are provided in an annular array on the annular tube (306), and the spray heads (307) face the inside of the grinding barrel (2).

2. The rubber flash grinding device according to claim 1, characterized in that: The rotating mechanism comprises a bearing (301), a gear ring (302), a gear (303) and a motor (304); the outer portion of the grinding barrel (2) is interference-fitted with the inner ring of the bearing (301); the inner ring of the gear ring (302) is interference-fitted with the outer ring of the bearing (301); the gear (303) is meshed with the gear ring (302); a motor (304) shaft of the motor (304) is connected to the gear (303); and the ring tube (306) is fixed on the gear ring (302).

3. The rubber flash grinding device according to claim 2, characterized in that: The gear (303) is located behind the grinding barrel (2); a connecting plate (305) is provided below the grinding barrel (2) corresponding to the gear (303); a motor (304) seat of the motor (304) is fixed below the connecting plate (305); and a motor (304) shaft of the motor (304) passes through the connecting plate (305).

4. The rubber flash grinding device according to claim 1, characterized in that: The screening assembly (4) comprises a support (401), a first sieve plate (402), a second sieve plate (403) and a water receiving box (404); the first sieve plate (402), the second sieve plate (403) and the water receiving box (404) are arranged in sequence from top to bottom in the support (401); and support plates (406) are provided on both sides of the bottom of the support (401) corresponding to the first sieve plate (402), the second sieve plate (403) and the water receiving box (404).

5. The rubber flash grinding device according to claim 4, characterized in that: The sieve hole diameter of the first sieve plate (402) is larger than the diameter of the abrasive and smaller than the diameter of the rubber member, and the sieve hole diameter of the second sieve plate (403) is smaller than the diameter of the abrasive.

6. The rubber flash grinding device according to claim 4, characterized in that: The highest point of the screening assembly (4) is lower than the bottom of the grinding barrel (2), and casters (405) are provided at the bottom of the bracket (401).

7. The rubber flash grinding device according to claim 1, characterized in that: The bellows (308) is located at the rear of the grinding barrel (2), and a pressure pump is provided between the bellows (308) and an external water source.

Images