A shot blasting apparatus for a workpiece

Abstract

The utility model discloses a work piece's shot blasting equipment, its characterized in that, including the casing, the casing is equipped with feed inlet, and the inside rotation of casing is equipped with three rotating rollers, and three rotating rollers are mutually parallelly arranged and are around with caterpillar band outside the perimeter, even distribution several through -holes on the caterpillar band, the caterpillar band below is equipped with the deflector for the screening of the pellet material and impurity that falls on the caterpillar band, the deflector below is equipped with the separation chamber, and the separation chamber is installed and is received the box for collecting broken pellet material and impurity, the casing still is equipped with dust extraction device, and the dust extraction device is equipped with dust removal cavity, and the dust removal cavity one end communicates separation chamber, and the other end connects the fan, can form the negative pressure dust removal of separation chamber. The utility model discloses simple structure can screen and remove the pellet material after throwing pellet, improve the throwing pellet effect of work piece.

Description

Technical Field

[0001] This utility model relates to the technical field of shot blasting equipment, and more particularly to a shot blasting equipment for workpieces. Background Technology

[0002] Shot blasting machines are the most important general-purpose basic equipment among workpiece surface cleaning machinery. They are widely used in metal surface treatment such as rust removal, polishing, and sand removal in industries such as shipbuilding, automotive engineering, and machinery manufacturing. There is huge demand in domestic and international markets.

[0003] The shot blasting machine has a shot blaster that sprays shot to blast the casting. After the shot blasting is completed, the casting is pushed out of the shot blasting chamber, thus completing the shot blasting. The crawler shot blasting machine is a type of shot blasting machine. The crawler drives the workpiece to be processed to rotate, and then the shot blasting device sprays shot, so that the shot can clean the oxide layer on the workpiece.

[0004] However, in existing technologies, the impurity removal device of a shot blasting machine is usually located above the shot peening device. A fan is used to create a negative pressure airflow to separate the shot from impurities, and the separation process cleans small dust particles. Because the shot breaks down after friction and collision with the workpiece, the particle size decreases. However, even after the shot becomes smaller, its weight is still much greater than that of dust particles, making effective separation difficult under normal circumstances. The repeated recycling of these small shot particles reduces the shot blasting effect on the workpiece surface, affecting the workpiece's processing quality.

[0005] Therefore, this utility model provides a new technical solution to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a shot blasting equipment for workpieces, which can screen and remove impurities from the shot after shot blasting, thereby improving the shot blasting effect of the workpieces.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A shot blasting device for a workpiece includes a housing, the housing having a feed port, and three rotating rollers rotatably mounted inside the housing, the three rotating rollers being arranged parallel to each other and having a track surrounding their outer periphery;

[0009] A guide plate is installed below the track to screen the shot and impurities that fall on the track. A separation chamber is provided below the guide plate, and a collection box is installed in the separation chamber to collect the broken shot and impurities.

[0010] The housing is also equipped with a dust collection device, which has a dust removal chamber. One end of the dust removal chamber is connected to the separation chamber, and the other end is connected to a fan, which can create negative pressure to remove dust from the separation chamber.

[0011] The present invention is further configured such that two tensioning wheels are rotatably installed inside the housing. The tensioning wheels are symmetrically arranged and press against both sides of the track surface, so that the track between the two tensioning wheels is recessed to form a bearing area, which is used to load the workpiece.

[0012] The present invention is further configured such that the guide plate is inclined, the bottom end of the guide plate is integrally connected to a support plate, the support plate is horizontal, and a spiral blade is fixedly installed above the support plate via a rotating shaft. The rotating shaft is rotatably installed on the housing and driven to rotate by a driver.

[0013] The present invention is further configured such that both the guide plate and the support plate have a plurality of sieve holes on their surfaces, the diameter of which is 0.5 to 0.8 times the diameter of the pellet.

[0014] The present invention is further configured such that a filter cartridge is installed inside the dust removal chamber, and a partition is fixedly installed on the upper end of the filter cartridge. The partition can divide the dust removal chamber into an upper chamber and a lower chamber. The upper chamber is connected to a fan, and the lower chamber is connected to a separation chamber.

[0015] The present invention is further configured such that: a ventilation opening is provided on the side wall of the separation chamber; an air inlet is provided in the lower chamber; the ventilation opening and the air inlet are connected by a connecting pipe; and an air outlet is provided in the upper chamber; the air outlet is connected to a ventilator.

[0016] The present invention is further configured to include a lifting device, which includes a driving wheel, a driven wheel, a belt, and multiple hoppers. The driving wheel and the driven wheel are rotatably connected to the housing via a rotating shaft. The belt is wound around the driving wheel and the driven wheel, and the hoppers are evenly spaced on the belt.

[0017] The beneficial effects of this utility model are as follows: This utility model adopts an inclined guide plate fixedly installed below the track, and a horizontally set support plate integrally connected to the end of the guide plate. Both the guide plate and the support plate have several sieve holes on their surfaces, which can screen the shot and impurities falling from the track. The broken shot and impurities are collected and cleaned through the collection box. The guide plate plays both the role of reversing flow and screening, improving the shot reuse rate and the shot blasting effect of the workpiece. Secondly, ventilation holes are opened on the side wall of the separation chamber. The ventilation holes are connected to a dust collection device fixedly installed on the shell. The ventilation holes form a negative pressure that can adsorb and discharge the dust in the separation chamber, which can fully clean the dust such as rust in the shot, making it convenient for the shot to be recycled and achieving a good cleaning effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a shot blasting device for a workpiece in this embodiment.

[0019] Figure 2 This is a side sectional view of a shot blasting device for a workpiece in this embodiment.

[0020] Figure 3 This is a rear sectional view of a shot blasting device for a workpiece in this embodiment.

[0021] Figure 4 This is a partial structural diagram of a shot blasting device for a workpiece in this embodiment.

[0022] Reference numerals: 1. Shell; 11. Feed port; 12. Rotating roller; 13. Track; 14. Pressing wheel; 15. Bearing area; 2. Guide plate; 21. Screen hole; 22. Separation chamber; 23. Collection box; 24. Ventilation port; 25. Support plate; 26. Rotating shaft one; 27. Spiral blade; 28. Connecting pipe; 3. Dust collection device; 31. Dust removal chamber; 311. Upper chamber; 312. Lower chamber; 32. Filter cartridge; 321. Partition plate; 33. Air outlet; 34. Air inlet; 35. Fan; 4. Lifting device; 41. Driven wheel; 42. Driven wheel; 43. Belt; 44. Hopper; 45. Rotating shaft two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This embodiment discloses a shot blasting device for a workpiece, referring to... Figures 1-4 As shown, the system mainly includes a housing 1. Inside the housing 1, three rotating rollers 12 are rotatably mounted, arranged parallel to each other and driven to rotate by a driver. A track 13 is wound around the outer periphery of the three rotating rollers 12. Inside the housing 1, two tensioning wheels 14 are also rotatably mounted, arranged symmetrically and resting on opposite sides of the track 13 surface. A recessed area of ​​the track 13 between the two tensioning wheels 14 forms a load-bearing region, primarily used for loading workpieces. The housing 1 has a feed port 11, and the track 13 rotates counterclockwise relative to the feed port 11 (see reference). Figure 1 This allows the workpiece on the track 13 to tumble back and forth, enabling the workpiece to fully rub against the shot and achieve the effect of removing the oxide layer on the workpiece surface.

[0025] A guide plate 2 is fixedly installed below the track 13. The guide plate 2 is inclined, and a support plate 25 is integrally connected to the lower end of the guide plate 2. The support plate 25 is horizontal. Both the guide plate 2 and the support plate 25 have a number of evenly arranged screen holes 21 on their surfaces. The diameter of the screen holes 21 is approximately 0.5 to 0.8 times the diameter of the shot. As the shot falls along the guide plate 2, it can pass through the screen holes 21 on the surface of the guide plate 2. The screen holes 21 can screen the broken shot and impurities removed from the surface of the workpiece, improving the reuse rate of the shot, improving the shot blasting effect on the workpiece, and saving costs.

[0026] Reference Figure 2 As shown, a spiral blade 27 is integrally connected above the support plate 25 via a rotating shaft 26. The rotating shaft 26 and the spiral blade 27 are arranged along the length of the support plate 25. The rotating shaft 26 is rotatably mounted on the housing 1 and driven to rotate by a driver. When the shot falls onto the guide plate 2 through the through holes on the surface of the track 13, it flows into the support plate 25 along the inclined direction of the guide plate 2. Under the rotation of the spiral blade 27, the shot after screening and impurity removal is conveyed into the lifting device 4 along the axial direction of the spiral blade 27. The spiral blade 27 not only serves to convey the shot, but also to agitate the shot through rotation. When the shot and impurities are not fully screened by the backflow plate 2, they are concentrated on the support plate 25. Under the agitation of the spiral blade 27, the impurities can pass through the sieve holes 21 on the support plate 25, achieving secondary screening and impurity removal, and improving the screening effect of the shot.

[0027] Reference Figure 3 As shown, a separation chamber 22 is provided below the guide plate 21. A pull-out storage box 23 is installed at the bottom of the separation chamber 22, which is mainly used to collect impurities after screening. A ventilation port 24 is provided on the side wall of the separation chamber 22. A dust collection device 3 is also fixedly installed on the housing 1, which mainly includes a dust removal chamber 31, a filter cartridge 32 and a fan 35. The filter cartridge 32 is fixedly installed in the dust removal chamber 31 and the dust removal chamber 31 is divided into an upper chamber 311 and a lower chamber 312 by a partition 321. The upper chamber 311 is provided with an air outlet 33 connected to the fan 35, while the lower chamber 312 is connected to the ventilation port 24 on the separation chamber 22 through a connecting pipe 28. A negative pressure is formed in the area of ​​the ventilation port 24, which can adsorb the dust in the separation chamber 22 and filter it through the filter cartridge 32 before discharging it, which can effectively clean the dust inside the equipment.

[0028] Reference Figure 4As shown, this utility model also includes a lifting device 4, which mainly includes a drive wheel 41, a driven wheel 42, a belt 43, and multiple hoppers 44. The drive wheel 41 and the driven wheel 42 are rotatably connected to the housing 1 through a rotating shaft 45. The belt 43 is wound around the drive wheel 41 and the driven wheel 42. The hoppers 44 are evenly spaced on the belt 43 for conveying pellets.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A shot blasting device for a workpiece, characterized in that, Includes a housing (1), the housing (1) is provided with a feeding port (11), and three rotating rollers (12) are rotatably installed inside the housing (1). The three rotating rollers (12) are arranged parallel to each other and are surrounded by a track (13). A guide plate (2) is installed below the track (13) to screen the pellets and impurities that fall on the track (13). A separation chamber (22) is provided below the guide plate (2). A collection box (23) is installed in the separation chamber (22) to collect the broken pellets and impurities. The housing (1) is also equipped with a dust collection device (3), which has a dust removal chamber (31). One end of the dust removal chamber (31) is connected to the separation chamber (22), and the other end is connected to a fan (35), which can form a negative pressure dust removal in the separation chamber (22).

2. The shot blasting equipment for a workpiece according to claim 1, characterized in that, Inside the housing (1), two tensioning wheels (14) are rotatably installed. The tensioning wheels (14) are symmetrically arranged and press against both sides of the surface of the track (13), so that the track (13) between the two tensioning wheels (14) is recessed to form a bearing area (15), which is used to load the workpiece.

3. The shot blasting equipment for a workpiece according to claim 1, characterized in that, The guide plate (2) is set in an inclined structure. The bottom end of the guide plate (2) is integrally connected to a support plate (25). The support plate (25) is set in a horizontal structure. A spiral blade (27) is fixedly installed above the support plate (25) via a rotating shaft (26). The rotating shaft (26) is rotatably installed on the housing (1) and driven to rotate by a driver.

4. The shot blasting equipment for a workpiece according to claim 3, characterized in that, The guide plate (2) and the support plate (25) are both provided with a number of sieve holes (21), the diameter of which is 0.5 to 0.8 times the diameter of the pellet.

5. The shot blasting equipment for a workpiece according to claim 1, characterized in that, A filter cartridge (32) is installed inside the dust removal chamber (31). A partition (321) is fixedly installed on the upper end of the filter cartridge (32). The partition (321) can divide the dust removal chamber (31) into an upper chamber (311) and a lower chamber (312). The upper chamber (311) is connected to a fan (35), and the lower chamber (312) is connected to a separation chamber (22).

6. The shot blasting equipment for a workpiece according to claim 5, characterized in that, The separation chamber (22) has a ventilation opening (24) on its side wall, the lower chamber (312) has an air inlet (34), and the ventilation opening (24) and the air inlet (34) are connected by a connecting pipe (28); the upper chamber (311) has an air outlet (33), and the air outlet (33) is connected to a ventilator (35).

7. The shot blasting equipment for a workpiece according to claim 1, characterized in that, It also includes a lifting device (4), which includes a drive wheel (41), a driven wheel (42), a belt (43) and multiple hoppers (44). The drive wheel (41) and the driven wheel (42) are rotatably connected to the housing (1) through a rotating shaft (45). The belt (43) is wound around the drive wheel (41) and the driven wheel (42). The hoppers (44) are evenly spaced on the belt (43).

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