Negative pressure dust removal mechanism of polishing equipment

Abstract

The utility model discloses a kind of polishing equipment negative pressure dust removal mechanism, including workbench, dust collecting hopper, flange, filter element, permanent magnet wheel, driving motor and rubber scraper, workbench has first negative pressure suction, dust collecting hopper is fixedly installed at workbench bottom, dust collecting hopper is sealed with first negative pressure suction Port communication, driving motor is fixedly installed on the outer wall of dust collecting hopper by motor support, dust collecting hopper left and right sides have second negative pressure suction port.This negative pressure dust removal mechanism when polishing iron product, utilize the characteristics that the iron dust polished can be adsorbed by magnet, make iron dust before being filtered into filter element, first pass through permanent magnet wheel and be fixed on its surface by its magnetic force adsorption, and rubber scraper is scraped up and accumulated and falls in collection barrel, reduce the adsorption amount of filter element of negative pressure purification equipment to iron dust, prolong the service life of filter element, reduce overall production cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of industrial dust removal equipment, and in particular relates to a negative pressure dust removal mechanism for iron product grinding equipment. Background Technology

[0002] When polishing iron products, to prevent iron dust from spreading and affecting the production workshop environment and the health of operators, negative pressure purification equipment is usually used to adsorb and purify the iron dust. However, the filter element of the negative pressure purification equipment needs frequent replacement and maintenance, which increases production costs. Summary of the Invention

[0003] The technical problem to be solved by this utility model is: a negative pressure dust removal mechanism for grinding equipment that utilizes the property that the iron dust produced by grinding can be attracted by a magnet to reduce the amount of iron dust adsorbed by the filter element of the negative pressure purification equipment and extend its service life.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a negative pressure dust removal mechanism for a grinding equipment, comprising a worktable, a dust collection hopper, a flange, a filter element, a permanent magnet wheel, a drive motor, and a rubber scraper. The worktable has a first negative pressure suction port. The dust collection hopper is fixedly installed at the bottom of the worktable and is sealed and connected to the first negative pressure suction port. The drive motor is fixedly installed on the outer wall of the dust collection hopper through a motor bracket. The central shaft of the permanent magnet wheel is rotatably installed on the dust collection hopper. The output shaft of the drive motor is drively connected to the central shaft of the permanent magnet wheel. The dust collection hopper has second negative pressure suction ports on the left and right sides. The filter element is fixedly installed inside the second negative pressure suction port. The flange is fixedly installed on the left and right sides of the dust collection hopper. The second negative pressure suction ports are located inside the flange. The two ends of the scraper are fixedly installed on the inner walls of the left and right sides of the dust collection hopper. The top of the scraper is in contact with the bottom of the permanent magnet wheel.

[0005] Furthermore, the top of the permanent magnet wheel extends 3-5 cm beyond the top of the second negative pressure suction port.

[0006] Furthermore, plastic discs with a thickness of 3-6cm are fixedly installed on both sides of the permanent magnet wheel, and the outer diameter of the plastic discs is the same as that of the permanent magnet wheel.

[0007] Furthermore, the top of the rubber scraper is configured as a contraction structure, and the rubber scraper has two threaded holes. The two ends of the rubber scraper are screwed and fixedly installed on the inner walls of the left and right sides of the dust collection hopper through their threaded holes.

[0008] Compared with the prior art, the advantages of this utility model are: when grinding iron products, this negative pressure dust removal mechanism utilizes the characteristic that the iron dust produced by grinding can be attracted by a magnet. Before entering the filter element for filtration, the iron dust is first attracted and fixed on the surface by the permanent magnet wheel, and then scraped up and accumulated by the rubber scraper into the collection bucket. This reduces the amount of iron dust adsorbed by the filter element of the negative pressure purification equipment, extends the service life of the filter element, and reduces the overall production cost. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a perspective view of the present invention.

[0011] Figure 2 This is the front view of this utility model.

[0012] Figure 3 yes Figure 2 Enlarged structural diagram at point M.

[0013] Figure 4 This is a 3D view of a rubber scraper. Detailed Implementation

[0014] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 4 The negative pressure dust removal mechanism of the grinding equipment shown includes a workbench 1, a dust collection hopper 2, a flange 3, a filter element 4, a permanent magnet wheel 4, a drive motor 5, and a rubber scraper 6. The workbench 1 has a first negative pressure suction port 11. The dust collection hopper 2 is fixedly installed at the bottom of the workbench 1 and is sealed and connected to the first negative pressure suction port 11. The drive motor 5 is fixedly installed on the outer wall of the dust collection hopper 2 through a motor bracket 51. The central shaft of the permanent magnet wheel 4 is rotatably installed on the dust collection hopper 2. The output shaft of the drive motor 5 is connected to the central shaft of the permanent magnet wheel 4. The dust collection hopper 2 has second negative pressure suction ports on the left and right sides. The filter element 4 is fixedly installed in the second negative pressure suction port. The flange 3 is fixedly installed on the left and right sides of the dust collection hopper 2. The second negative pressure suction port is located inside the flange 3. The scraper 6 is fixedly installed on the inner walls of the left and right sides of the dust collection hopper 2 at both ends. The top of the scraper 6 is in contact with the bottom of the permanent magnet wheel 4.

[0015] The top of the permanent magnet wheel 4 extends 4.5 cm beyond the top of the second negative pressure suction port, and the iron dust is attracted by the permanent magnet wheel 4 before it enters the second negative pressure suction port.

[0016] The permanent magnet wheel 4 is also fixedly provided with a plastic disc 4 with a thickness of 5.5cm on both sides. The plastic disc 4 has the same outer diameter as the permanent magnet wheel 4. The plastic disc 4 can weaken the magnetic force at both ends of the permanent magnet wheel 4, prevent the permanent magnet wheel 4 from adsorbing iron dust at both ends and making it difficult to rotate, and also prevent the iron dust adsorbed at both ends of the permanent magnet wheel 4 from clogging the filter element 4.

[0017] The top of the rubber scraper 6 is designed with a contraction structure. The material of the rubber scraper 6 is the same as that of automobile tire rubber. Therefore, the top of the rubber scraper 6 can be bent and elastically deformed to fit tightly against the surface of the smooth permanent magnet wheel 4. Even after the outer end of the rubber scraper 6 is worn, it can still spring back and fit tightly against the surface of the smooth permanent magnet wheel 4. At the same time, the rubber scraper 6 also has good wear resistance, which makes its service life longer. The rubber scraper 6 has two threaded holes 61. The two ends of the rubber scraper 6 are screwed and fixed to the inner walls of the left and right sides of the dust collection hopper 2 through its threaded holes 61. The screwed installation method makes it easy to disassemble and replace the rubber scraper 6 after it is worn.

[0018] The flanges 3 on both sides of the dust collection hopper 2 are sealed to the air inlet of the negative pressure fan through pipelines. The grinding is set on the workbench 1. When grinding iron products, the negative pressure fan and drive motor are started. The iron dust produced by grinding enters the dust collection hopper 2 through the first negative pressure suction port 11. Before the iron dust enters the filter element 4 and is filtered, it first passes through the permanent magnet wheel 4 and is magnetically attracted and fixed on its surface. The permanent magnet wheel 4 rotates continuously under the drive of the drive motor. The iron dust attracted and fixed on the permanent magnet wheel 4 is scraped up and accumulated by the rubber scraper 6. When the accumulated iron dust increases, it falls into the collection bucket at the bottom of the dust collection hopper 2 under the action of gravity (the collection bucket is sealed and fixedly installed on the bottom opening of the dust collection hopper 2). Therefore, the amount of iron dust passing through the filter element 4 is reduced, and the service life of the filter element 4 is extended.

Claims

1. A negative pressure dust removal mechanism of a grinding device, characterized in that: The device includes a workbench (1), a dust collection hopper (2), a flange (3), a filter element, a permanent magnet wheel (4), a drive motor (5), and a rubber scraper (6). The workbench (1) has a first negative pressure suction port (11). The dust collection hopper (2) is fixedly installed at the bottom of the workbench (1). The dust collection hopper (2) is sealed and connected to the first negative pressure suction port (11). The drive motor (5) is fixedly installed on the outer wall of the dust collection hopper (2) through a motor bracket (51). The central shaft of the permanent magnet wheel (4) is rotatably installed on the dust collection hopper (2). The output shaft of the drive motor (5) is connected to the central shaft of the permanent magnet wheel (4). The dust collection hopper (2) has a second negative pressure suction port on the left and right sides. The filter element is fixedly installed inside the second negative pressure suction port. The flange (3) is fixedly installed on the left and right sides of the dust collection hopper (2). The second negative pressure suction port is located inside the flange (3). The scraper (6) is fixedly installed on the inner walls of the left and right sides of the dust collection hopper (2). The top of the scraper (6) is in contact with the bottom of the permanent magnet wheel (4).

2. The polishing apparatus negative pressure dust removal mechanism according to claim 1, characterized by: The top of the permanent magnet wheel (4) extends 3-5 cm beyond the top of the second negative pressure suction port.

3. The polishing apparatus negative pressure dust removal mechanism according to claim 1, characterized by: The permanent magnet wheel (4) is also fixedly provided with plastic discs (41) with a thickness of 3-6cm on both sides. The plastic discs (41) have the same outer diameter as the permanent magnet wheel (4).

4. The polishing apparatus negative pressure dust removal mechanism according to claim 1, characterized by: The top of the rubber scraper (6) is configured as a constricted structure. The rubber scraper (6) has two threaded holes (61). The two ends of the rubber scraper (6) are screwed and fixedly installed on the inner walls of the left and right sides of the dust collection hopper (2) through their threaded holes (61).

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