A shot blasting machine box body external shot collecting device

Abstract

A kind of shot blasting machine box exterior projectile collecting device, including conveying roller way through shot blasting machine box, brush roller, drive motor, projectile chute and projectile collection tank, the brush roller is erected above the conveying roller way of box outlet side by its two ends adjustable support leg, the two end shafts of brush roller are respectively with the top rotary support of two adjustable support legs, adjustable support leg on the end of brush roller is fixed with drive motor, the output shaft of drive motor is fixedly connected with the end shaft of brush roller, the projectile chute is set below the conveying roller way of box outlet exterior, the high end of projectile chute is opposite with the outlet of box, the projectile collection tank is set in the low end lower part of projectile chute.The utility model utilizes brush roller to clean projectile on the top of workpiece into projectile chute, then utilizes projectile collection tank to receive the projectile falling from the low end of projectile chute, realizes the secondary collection of shot blasting machine box exterior projectile, this device can effectively collect projectile on the surface of workpiece, improve the recovery rate of projectile, reduce environmental pollution.

Description

Technical Field

[0001] This utility model relates to a device that can effectively collect shot from the outside of the housing during the operation of a shot blasting machine (or sandblasting machine, blasting machine), and belongs to the field of grinding or polishing technology. Background Technology

[0002] A shot blasting machine is a surface treatment device primarily used for cleaning, strengthening, or pre-treating the surfaces of metal and non-metal workpieces. Its core principle is to use high-speed projectiles (such as steel shot, cast iron shot, ceramic shot, etc.) to impact the workpiece surface, achieving purposes such as removing oxide scale, rust, deburring, surface strengthening, or increasing surface roughness. A shot blasting machine consists of a shot blaster, a shot circulation system, a workpiece conveying system, and a dust removal system. The shot blaster uses a high-speed rotating impeller (speed can reach 2000-3000 rpm) to accelerate the shot to 60-100 m / s. After being ejected from the nozzle, the shot impacts the workpiece surface inside the blast chamber at a certain angle, using kinetic energy to remove impurities or create a compressive stress strengthening layer. The shot and impurities are filtered by a separator and recycled, while dust is collected by the dust removal system.

[0003] Chinese utility model patent CN204431072U discloses "An external shot collection device for a shot blasting machine housing with sorting function," which includes a shot delivery pipe horizontally arranged at the bottom of the working chamber of the shot blasting machine. The outlet end of the shot delivery pipe is connected to the lower sand box. A shot delivery spiral shaft is installed inside the shot delivery pipe, and the spiral shaft is driven by a shot delivery motor at the end of the shot delivery pipe. Shot receiving plates extending obliquely upward are connected to both sides of the shot delivery pipe. A slit larger than the diameter of the shot is provided on the spiral shaft at the lower end of the receiving plate. Several filter holes with a diameter smaller than the diameter of the shot are opened on the wall of the shot delivery pipe to form a shot sorting structure. This utility model can achieve sorting during shot blasting, simultaneously removing small-diameter shot and impurities, and has the advantages of timely and reliable impurity removal and avoiding clogging.

[0004] During the process of the shot blaster accelerating the shot and impacting the workpiece surface, the high-speed shot splashes irregularly inside the chamber, and some shot will become embedded in the workpiece surface. When the workpiece is transported outside the chamber, the shot will be carried out, causing shot contamination. Existing collection devices cannot effectively collect these shot, which also reduces the shot recovery rate. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an external shot collection device for a shot blasting machine housing, which can effectively collect shot from the surface of workpieces, improve shot recovery rate, and reduce environmental pollution.

[0006] The problem described in this utility model is solved by the following technical solution:

[0007] An external shot collection device for a shot blasting machine housing includes a conveyor roller, a brush roller, a drive motor, a shot chute, and a shot collection trough that penetrate the housing. The brush roller is mounted above the conveyor roller on the outlet side of the housing via adjustable legs at both ends. The two end shafts of the brush roller are rotatably supported by the tops of the two adjustable legs. A drive motor is fixed on one of the adjustable legs at one end of the brush roller, and the output shaft of the drive motor is fixedly connected to the end shaft of the brush roller. The shot chute is located below the external conveyor roller at the outlet of the housing, with the high end of the shot chute opposite to the outlet of the housing. The shot collection trough is located at the lower end of the shot chute.

[0008] The shot collection device outside the shot blasting machine housing mentioned above includes a conveying roller track comprising multiple parallel conveying rollers arranged in a straight line. Each conveying roller has a support column at both ends. The lower end of the support column is fixed to the ground. The two ends of the conveying roller are rotatably supported by the tops of the two support columns respectively. One end of the conveying roller is equipped with a conveying motor, which is fixed on the support column. The output shaft of the conveying motor is coaxially and fixedly connected to the conveying roller.

[0009] The shot collection device outside the shot blasting machine housing described above includes a fixed support column, a floating support column, and an electric vibrator at the end of the conveying roller. The lower end of the fixed support column is fixed to the ground, and a vertical groove is provided on the upper surface of the fixed support column. The electric vibrator is placed in the vertical groove, and the lower end of the floating support column is slidably inserted into the vertical groove. The top rod of the electric vibrator abuts against the lower end of the floating support column, and the top of the floating support column is rotatably supported by the end of the conveying roller.

[0010] The shot collection device outside the shot blasting machine housing described above has the shot chute supported at its high and low ends by a rocking support mechanism and an elastic support mechanism, respectively. The rocking support mechanism includes a rocking motor, a reducer, and a crankshaft. The middle straight section of the crankshaft is rotatably supported by crankshaft seats located on both sides of the high end of the shot chute, and both ends of the crankshaft are rotatably supported by a bracket fixed to the ground via bearing seats. The reducer is fixed on a reducer base, with its input shaft connected to the rocking motor and its output shaft fixedly connected to one end of the crankshaft via a coupling. The elastic support mechanism includes two support springs and two suspension springs. The upper ends of the two support springs are connected to connecting blocks on both sides of the low end of the shot chute, and their lower ends are fixedly connected to supports on the ground. The lower ends of the two suspension springs are connected to both sides of the low end of the shot chute, and their upper ends are fixedly connected to spring fixing points.

[0011] The shot collection device outside the shot blasting machine housing described above has an electromagnetic vibrator installed at the bottom of the shot chute.

[0012] The shot collection device outside the shot blasting machine housing has a workpiece sensor installed below one end of the brush roller, and the signal output terminal of the workpiece sensor is connected to the controller of the drive motor.

[0013] The shot collection device outside the shot blasting machine housing is provided with wheels at the bottom of the shot collection trough.

[0014] The adjustable support leg of the shot blasting machine housing external shot collection device is a hydraulic cylinder.

[0015] The shot collection device outside the shot blasting machine housing described above has a limiting core seat at the lower end of the supporting spring, which is fixedly connected to the support; and a spring core column at the lower end of the suspension spring, which is fixedly connected to the shot chute. Beneficial effects

[0016] This invention utilizes a brush roller to sweep the shot from the top of the workpiece into a shot chute, and then uses a shot collection trough to collect the shot falling from the bottom of the shot chute, thus achieving secondary collection of shot outside the shot blasting machine housing. This device can effectively collect shot from the surface of the workpiece, improve the shot recovery rate, and reduce environmental pollution. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 This is an installation diagram of this utility model;

[0019] Figure 2 This is a diagram showing the arrangement of the shot blasting machine nozzles inside the housing;

[0020] Figure 3 This is a schematic diagram of the conveyor roller installation;

[0021] Figure 4 This is a schematic diagram of the installation of an electric vibrator;

[0022] Figure 5 This is a schematic diagram of the projectile chute installation;

[0023] Figure 6 This is a schematic diagram of the swaying support mechanism. Figure 5 (K-direction view in the image).

[0024] The labels in the diagram represent: 1. Housing, 2. Brush roller, 3. Drive motor, 4. Workpiece sensor (proximity switch), 5. Conveyor roller, 6. Shot chute, 7. Shot collection trough, 8. Adjustable support leg (hydraulic cylinder), 9. Shaking motor, 10. Electromagnetic vibrator, 11. Support spring, 12. Suspension spring, 13. Workpiece, 14. Fixed support column, 15. Floating support column, 16. Conveyor motor, 17. Electric vibrator, 18. Reducer, 19. Coupling, 20. Shot, 21. Crankshaft seat, 22. Bearing seat, 23. Bracket, 24. Crankshaft, 25. Reducer base, 26. Shot blasting machine nozzle, 27. Support, 28. Connecting block, 29. Limiting core seat, 30. Spring core column, 31. Spring fixing point. Detailed Implementation

[0025] The shot collection device for the external casing of the shot blasting machine provided by this utility model can automatically collect the shot residue on the surface of the workpiece into the shot collection trough, which not only improves the reuse rate of shot but also reduces environmental pollution.

[0026] See Figures 1-6 This utility model mainly includes a brush roller 2, a drive motor 3, a workpiece sensor 4, a conveying roller 5, a shot chute 6, a shot collection trough 7, an adjustable support leg 8, an electromagnetic vibrator 10, an elastic support mechanism, an electric vibrator 17, and a rocking support mechanism. The elastic support mechanism includes a support spring 11 and a suspension spring 12, and the rocking support mechanism includes a rocking motor 9, a reducer 18, a coupling 19, a crankshaft seat 21, a bearing seat 22, a bracket 23, a crankshaft 24, and a reducer base 25.

[0027] Figure 1 and Figure 2 The display shows that multiple parallel conveyor rollers 5 are arranged in a straight line to form a workpiece conveyor roller track that runs through the housing 1. The workpiece 13 placed on the conveyor roller track enters the housing 1 through the inlet and is impacted by high-speed shot blasting nozzles 26 arranged in four directions (up, down, left, and right). Then, it exits the housing 1 through the outlet and continues to move along the conveyor roller track. Each conveyor roller 5 has support columns at both ends. The lower ends of the support columns are fixed to the ground. The two ends of the conveyor roller 5 are rotatably supported by bearings on the tops of the two support columns respectively. One end of the conveyor roller 5 is equipped with a conveyor motor 16, which is fixed to the support column. The output shaft of the conveyor motor 16 is coaxially and fixedly connected to the conveyor roller 5. When the conveyor motor 16 runs, it drives the conveyor roller 5 to rotate, causing the workpiece on the upper part of the conveyor roller 5 to move along the conveyor roller track.

[0028] The brush roller 2 is mounted above the conveyor roller on the outlet side of the housing 1 via adjustable legs 8 at both ends. The two end shafts of the brush roller 2 are rotatably supported by the tops of the two adjustable legs 8. A drive motor 3 is fixed to one end of the adjustable leg 8 of the brush roller 2, and the output shaft of the drive motor 3 is fixedly connected to the end shaft of the brush roller 2. When the drive motor 3 operates, it drives the brush roller 2 to rotate, cleaning the shot on the top of the workpiece. A workpiece sensor 4 is installed below one end of the brush roller 2. The signal output terminal of the workpiece sensor 4 is connected to the controller of the drive motor 3. The workpiece sensor 4 can be a proximity switch. When the workpiece moves below the brush roller 2, the workpiece sensor 4 is triggered, and the controller of the drive motor 3 outputs a control signal, causing the drive motor 3 to drive the brush roller 2 to rotate. The adjustable legs 8 are hydraulic cylinders, allowing the height of the brush roller 2 to be changed to accommodate workpieces of different sizes.

[0029] The shot chute 6 is located below each conveying roller 5 outside the outlet of the box body 1. The high end of the shot chute 6 is opposite to the outlet of the box body 1 and is equipped with a rocking support mechanism. The low end of the shot chute 6 is equipped with an elastic support mechanism.

[0030] See Figure 6 The swaying support mechanism mainly includes a swaying motor 9, a reducer 18, and a crankshaft 24. The middle straight section of the crankshaft 24 is rotatably supported by crankshaft seats 21 located on both sides of the high end of the shot chute 6. The two ends of the crankshaft 24 are rotatably supported by bearing seats 22 and brackets 23 fixed to the ground. The reducer 18 is fixed on a reducer base 25. The input shaft of the reducer 18 is connected to the swaying motor 9, and the output shaft is fixedly connected to one end of the crankshaft 24 through a coupling 19. When the swaying motor 9 is running, it drives the crankshaft 24 to rotate through the reducer 18 and coupling 19, thereby causing the high end of the shot chute 6 to make circular motion and sway. This swaying can cause the shot 20 in the shot chute 6 to slide towards the low end of the shot chute 6.

[0031] See Figure 5 The elastic support mechanism includes two support springs 11 and two suspension springs 12. The upper ends of the two support springs 11 are connected to the connecting blocks 28 on both sides of the lower end of the shot chute 6, and the lower ends are fixedly connected to the supports 27 on the ground. The lower ends of the two suspension springs 12 are connected to both sides of the lower end of the shot chute 6, and the upper ends are fixedly connected to the spring fixing points 31 set on the support columns of the conveying roller 5. The function of the elastic support mechanism is to allow the lower end of the shot chute 6 to sway along with the upper end when the rocking support mechanism is running.

[0032] The lower end of the support spring 11 is provided with a limiting core seat 29, which is fixedly connected to the support 27; the lower end of the suspension spring 12 is provided with a spring core column 30, which is fixedly connected to the shot chute 6. The function of the limiting core seat 29 and the spring core column 30 is to limit the swaying amplitude of the shot chute 6.

[0033] See Figure 1 An electromagnetic vibrator 10 is installed at the bottom of the projectile chute 6. When the electromagnetic vibrator 10 operates, it causes the projectile chute 6 to vibrate, causing the projectiles 20 inside the projectile chute 6 to slide towards the lower end of the projectile chute 6. A projectile collecting trough 7 is located below the lower end of the projectile chute 6 to collect the projectiles 20 falling from the lower end of the projectile chute 6. The bottom of the projectile collecting trough 7 is equipped with wheels to facilitate its movement.

[0034] See Figure 3 and Figure 4 The support columns at the ends of the conveyor rollers 5 include fixed support columns 14, floating support columns 15, and electric vibrators 17. The lower end of the fixed support column 14 is fixed to the ground, and a vertical groove is provided on the upper surface of the fixed support column 14. The electric vibrator 17 is placed in the vertical groove, and the lower end of the floating support column 15 is slidably inserted into the vertical groove. The top rod of the electric vibrator 17 presses against the lower end of the floating support column 15, and the top of the floating support column 15 is rotatably supported by bearings to the ends of the conveyor rollers 5. Electric vibrators 17 are installed in the support columns of each conveyor roller 5 outside the outlet of the housing 1. When conveying workpieces, the electric vibrators 17 are activated to cause the conveyor rollers 5 and the workpieces above them to vibrate, which can cause the projectiles remaining on the surface of the workpieces to fall.

[0035] The working mechanism is as follows:

[0036] First, based on the workpiece dimensions, the adjustable support leg 8 is controlled via the directional valve on the hydraulic valve platform to adjust the brush roller 2 to a suitable height. After the finished workpiece is transported out of the shot blasting machine housing 1, it continues to move along the conveyor roller track. When the workpiece sensor 4 detects that the workpiece has reached the position of the brush roller 2, the controller of the drive motor 3 outputs a control signal, the drive motor 3 starts, and drives the brush roller 2 to rotate, sweeping the shot on the top of the workpiece into the shot chute 6 below. At the same time, the electric vibrator 17 is activated, causing the workpiece to vibrate along with the conveyor roller 5, causing the shot on the surface of the workpiece to fall into the shot chute 6. After falling into the shot chute 6, the shot slides down the shot chute 6 and finally falls into the shot collection tank 7.

[0037] When material accumulates in the shot chute 6, the shaking motor 9 is started. The shaking motor 9 drives the crankshaft 24 to rotate through the reducer 18 and coupling 19, causing the shot chute 6 to shake and prompting the shot 20 in the shot chute 6 to slide towards the lower end of the shot chute 6. At the same time, the electromagnetic vibrator 10 can be started to make the shot chute 6 vibrate, accelerating the sliding of the shot 20.

[0038] When the collected projectiles 20 fill the projectile collection tank 7, pull the projectile collection tank 7 back into the box 1 to complete the cleaning and collection of the projectiles 20.

Claims

1. A shot collection device for the external casing of a shot blasting machine, characterized in that, The assembly includes a conveyor roller, a brush roller (2), a drive motor (3), a shot chute (6), and a shot collection trough (7) that pass through the shot blasting machine housing (1). The brush roller (2) is mounted above the conveyor roller on the outlet side of the housing (1) by adjustable legs (8) at both ends. The two end shafts of the brush roller (2) are rotatably supported by the top of the two adjustable legs (8). A drive motor (3) is fixed on the adjustable leg (8) at one end of the brush roller (2). The output shaft of the drive motor (3) is connected to the end shaft of the brush roller (2). The shot chute (6) is located below the conveyor roller outside the outlet of the housing (1). The shot chute (6) is inclined and its high end is opposite to the outlet of the housing (1). The shot collection trough (7) is located at the lower end of the shot chute (6).

2. The shot collection device for the external casing of a shot blasting machine according to claim 1, characterized in that, The conveyor roller track includes multiple parallel conveyor rollers (5) arranged in a straight line. Each conveyor roller (5) has a support column at both ends. The lower end of the support column is fixed to the ground. The two ends of the conveyor roller (5) are rotatably supported by the top of the two support columns respectively. One end of the conveyor roller (5) is provided with a conveyor motor (16). The conveyor motor (16) is fixed on the support column. The output shaft of the conveyor motor (16) is connected to the conveyor roller (5) for transmission.

3. The shot collection device for the external casing of a shot blasting machine according to claim 2, characterized in that, The support column at the end of the conveying roller (5) includes a fixed support column (14), a floating support column (15), and an electric vibrator (17). The lower end of the fixed support column (14) is fixed to the ground. A vertical groove is provided on the upper surface of the fixed support column (14). The electric vibrator (17) is placed in the vertical groove. The lower end of the floating support column (15) is slidably inserted into the vertical groove. The top rod of the electric vibrator (17) presses against the lower end of the floating support column (15). The top of the floating support column (15) is rotatably supported by the end of the conveying roller (5).

4. A shot collection device for the external casing of a shot blasting machine according to any one of claims 1-3, characterized in that, The high end and low end of the shot chute (6) are supported by a rocking support mechanism and an elastic support mechanism, respectively. The rocking support mechanism includes a rocking motor (9), a reducer (18), and a crankshaft (24). The middle straight section of the crankshaft (24) is rotatably supported by crankshaft seats (21) located on both sides of the high end of the shot chute (6). The two ends of the crankshaft (24) are rotatably supported by a bracket (23) fixed on the ground through bearing seats (22). The reducer (18) is fixed on a reducer base (25). The input shaft of the ball bearing is connected to the rocking motor (9), and the output shaft is fixedly connected to one end of the crankshaft (24) through the coupling (19). The elastic support mechanism includes two support springs (11) and two suspension springs (12). The upper ends of the two support springs (11) are respectively connected to the connecting blocks (28) on both sides of the lower end of the ball chute (6), and the lower ends are fixedly connected to the support (27) on the ground. The lower ends of the two suspension springs (12) are respectively connected to both sides of the lower end of the ball chute (6), and the upper ends are fixedly connected to the spring fixing point (31).

5. The shot collection device for the external casing of a shot blasting machine according to claim 4, characterized in that, An electromagnetic vibrator (10) is installed at the bottom of the projectile chute (6).

6. The shot collection device for the external casing of a shot blasting machine according to claim 5, characterized in that, A workpiece sensor (4) is installed below one end of the brush roller (2), and the signal output end of the workpiece sensor (4) is connected to the controller of the drive motor (3).

7. The shot collection device for the external casing of a shot blasting machine according to claim 6, characterized in that, The bottom of the projectile collection trough (7) is equipped with wheels.

8. The shot collection device for the external casing of a shot blasting machine according to claim 7, characterized in that, The adjustable outrigger (8) is a hydraulic cylinder.

9. The shot collection device for the external casing of a shot blasting machine according to claim 8, characterized in that, The lower end of the support spring (11) is provided with a limiting core seat (29), which is fixedly connected to the support (27); the lower end of the suspension spring (12) is provided with a spring core column (30), which is fixedly connected to the shot chute (6).

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