Multi-cavity crawler-type shot blasting machine

Abstract

The invention provides a multi-cavity crawler-type shot blasting machine which comprises an outer shell, a first motor, crawler belts, four first supporting wheels, a plurality of second supporting wheels, a plurality of third supporting wheels, a plurality of sand blasting nozzles, a pushing assembly and two opening and closing assemblies. The crawler belt is matched with the width of an inner cavity of the outer shell, the first supporting wheels are horizontally arranged and parallel to one another, the first supporting wheels are located at the four corners of an inner ring of the crawler belt respectively and make contact with the crawler belt, and a plurality of concave positions are formed in the horizontal section of the crawler belt. The second supporting wheels are rotationally arranged on the two sides of the bottom of the concave portion and make rolling contact with the crawler belts, and the third supporting wheels are located below the connecting position of the crawler belts extending upwards from the side faces of the two adjacent concave portions and make rolling contact with the crawler belts. The crawler-type shot blasting machine solves the problem that the crawler-type shot blasting machine only has one working chamber and can only carry out independent shot blasting on one workpiece at the same time, and the practicability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shot blasting machines, in particular to a multi-chamber crawler type shot blasting machine. Background Art

[0002] The crawler shot blasting machine uses a high-speed rotating impeller to throw the projectiles onto the workpieces in the chamber to achieve the purpose of cleaning. It is suitable for sand removal, rust removal, oxide skin removal and surface strengthening of small castings, forgings, stampings, gears, springs and other parts, and is particularly suitable for cleaning and strengthening parts that are not afraid of collision. In the prior art, the crawler shot blasting machine has only one chamber. When it is necessary to blast two or more different types of workpieces at the same time, only one or more shot blasting machines can be added to meet the needs. However, when multiple shot blasting machines are placed together, many functional components are separately located on each shot blasting machine, which requires a large space and is costly. Therefore, it is necessary to optimize the prior art. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a multi-chamber crawler shot blasting machine, which solves the problem that the crawler shot blasting machine in the prior art has only one working chamber and can only independently blast one workpiece at the same time.

[0004] According to an embodiment of the present invention, a multi-chamber crawler shot blasting machine includes an outer shell, a first motor, a crawler, four first support wheels, a plurality of second support wheels, a plurality of third support wheels, a plurality of sandblasting nozzles, a pushing assembly and two sets of opening and closing assemblies, wherein the crawler is connected end to end and arranged in a rectangular shape inside the outer shell, the crawler and the inner cavity of the outer shell are adapted in width, the first support wheels are arranged horizontally and parallel to each other, the first support wheels are respectively located at the four corners of the inner ring of the crawler and contact with the crawler, the upper horizontal section of the crawler is provided with a plurality of recesses, the second support wheels are rotatably arranged on both sides of the bottom of the recess and are in rolling contact with the crawler, and the first support wheels are arranged on both sides of the bottom of the recess and are in rolling contact with the crawler, and the first support wheels are arranged horizontally and parallel to each other. The three support wheels are below the track connection extending upward from the sides of two adjacent recesses and are in rolling contact with the track; the outer shell is provided with a feed port on one side corresponding to the recess; the pushing assembly is arranged at the recess and connected to the outer shell, and the pushing assembly is used to push the workpiece out of the discharge port; the opening and closing assembly is connected to the outer shell for opening or closing the feed port; the shot blaster is connected to the inside of the outer shell and a sandblasting nozzle is arranged above the recess; the first motor is used to drive one of the first support wheels to rotate; the second support wheel and the third support wheel are respectively connected to the opening and closing assembly and the outer shell for rotation.

[0005] The technical principle of the present invention is as follows: a plurality of recessed areas are provided on the adjacent tracks at the end, and different workpieces are placed in the recessed areas respectively. When the first motor drives the first supporting wheel so that the track rotates, the workpieces continuously reciprocate in the recessed areas, and at the same time, the sand shots sprayed from the sandblasting nozzle blast the workpieces, thereby completing the shot blasting of different workpieces at the same time.

[0006] Preferably, the pushing assembly includes two threaded rods, two guide rods, a push plate, a sliding plate and a driving unit, the threaded rods are horizontally arranged and parallel to each other, the threaded rods are arranged above the recessed part, the two ends of the threaded rods are rotatably connected to the outer shell, and the two guide rods are correspondingly arranged below the threaded rods; the push plate and the first support wheel are perpendicular, the push plate and the threaded rods are threadedly connected, the push plate and the guide rods are slidably connected, and the bottom contour of the push plate fits the recessed part; the driving unit is connected to the threaded rod and is used to drive the threaded rods to rotate synchronously; a feeding hole is provided on the push plate; the sliding plate and the push plate are slidably connected to close or open the feeding hole.

[0007] Preferably, the drive unit includes two second motors and a controller, the end of the threaded rod extends to the outside of the outer shell and is provided with a first gear; the second motor is fixedly connected to the outer shell, the output shaft of the second motor is provided with a second gear, and the first gear and the second gear are meshed; the controller is electrically connected to the second motor.

[0008] Preferably, the opening and closing assembly includes a baffle, two torsion bars and a latch, the size of the baffle is adapted to the size of the feed port or the discharge port, the upper edge of the baffle is hinged to the upper edge of the feed port or the discharge port, the rotation axis of the torsion bar and the baffle are perpendicular, the upper end of the torsion bar is hinged to the outer shell, and the lower end of the torsion bar is hinged to the lower position of the baffle; the second support wheel and the baffle are rotatably connected to a side of the outer shell close to the outer shell; the latch is slidably arranged on the outside of the baffle and close to the edge, a positioning hole is provided on the outer shell, and the latch is adapted to the positioning hole.

[0009] Preferably, a gap is provided between the push plate and the crawler track.

[0010] Preferably, a sealing strip is provided at the position where the baffle plate contacts the outer shell.

[0011] Preferably, a groove is provided on the inner side of the outer shell corresponding to the side of the track, the side of the track and the groove are slidably matched, and the groove is disconnected at the position of the feed port or the discharge port.

[0012] Preferably, the outer shell is connected to a spiral dust collector.

[0013] Preferably, the third support wheel and the uppermost first support wheel are on the same horizontal plane.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention arranges a plurality of recesses on the circumferentially arranged crawler belt, and places different workpieces in the recesses respectively. When the crawler belt rotates, the workpieces reciprocate in the recesses, thereby realizing the simultaneous processing of different workpieces; a feed port and a discharge port are arranged on the outer shell at positions corresponding to both sides of the small recesses, which is convenient for putting in or taking out the workpiece; after the workpiece is shot blasted, the pushing component pushes out the position of the side discharge port of the workpiece, avoiding the need for the staff to take it out manually. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the pushing component of the present invention.

[0017] Figure 3 It is a schematic diagram of the torsion bar connection of the present invention.

[0018] Figure 4 It is a schematic diagram of the plug connection of the present invention.

[0019] Figure 5 It is a schematic diagram of the groove of the present invention.

[0020] Figure 6 It is a schematic diagram of the position of the second support wheel of the present invention.

[0021] In the above drawings: 1. outer shell; 2. sandblasting nozzle; 3. crawler track; 4. first support wheel; 5. recess; 6. second support wheel; 7. third support wheel; 8. threaded rod; 9. push plate; 10. first gear; 11. second motor; 12; 13. torsion bar; 14. baffle; 15. latch; 16. sliding sleeve; 17. limit seat; 18. guide rod; 19. second gear; 20. first motor; 21. groove; 22. introduction cylinder; 24. guide plate. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 , 6As shown, an embodiment of the present invention proposes a multi-chamber crawler shot blasting machine, including an outer shell 1, a first motor 20, a crawler 3, four first support wheels 4, a plurality of second support wheels 6, a plurality of third support wheels 7, a shot blaster, a pushing assembly and two sets of opening and closing assemblies, the crawler 3 is connected end to end and is arranged in a rectangular shape inside the outer shell 1, that is, the crawler 3 is arranged in a mouth shape, and the width of the inner cavity of the crawler 3 and the outer shell 1 are adapted, the first support wheel 4 is horizontally arranged and parallel to each other, the first support wheel 4 is respectively located at the four corners of the inner ring of the crawler 3 and contacts with the crawler 3, the crawler 3 is provided with a plurality of recesses 5 on the upper horizontal section, and the recesses 5 are V-shaped, the second support wheel 6 is rotatably arranged on both sides of the bottom of the recess 5 and is in rolling contact with the crawler 3, the third support wheel 7 is below the connection of the crawler 3 extending upward from the sides of two adjacent recesses 5 and is in rolling contact with the crawler 3, the second support wheel 6 and the third support wheel 7 make the recess 5 on the crawler 3 always maintain structural stability. The outer shell 1 is provided with a feed port on one side corresponding to the recess 5. The pushing assembly is arranged at the recess 5 and connected to the outer shell 1, and the pushing assembly is used to push the workpiece out of the discharge port. There is dust inside the outer shell 1, and bending over to enter the discharge port will increase the physical exertion of the staff. The present invention can directly drop the workpiece into the transfer device after pushing it out. The opening and closing assembly is connected to the outer shell 1 to open or close the feed port to prevent dust from overflowing during shot blasting. The shot blaster is connected to the inside of the outer shell 1 and a sandblasting nozzle 2 is arranged above the recess 5. The first motor 20 is used to drive one of the first support wheels 4 to rotate. The end of the corresponding first support wheel 4 extends to the outside of the outer shell 1, the output shaft of the first motor 20 is fixedly connected to the end of the first support wheel 4, and the first motor 20 is fixedly connected to the outer wall of the outer shell 1. The second support wheel 6 and the third support wheel 7 are respectively connected to the opening and closing assembly, the outer shell 1, and the outer shell 1. In this embodiment, a gap is provided between the track 3 and the outer shell 1 to reduce friction resistance. The second support wheels 6 are arranged on both sides of the concave part 5, and the workpiece is shot blasted in the area between the second support wheels 6. The inclined surface on one side of the track 3 of the concave part 5 has a sufficiently large inclination angle to prevent the workpiece from being driven upward by the track 3 and moving to the outside of the concave part 5.

[0024] like Figure 1 , 2As shown, as a preferred embodiment, the pushing assembly includes two threaded rods 8, two guide rods 18, a push plate 9, a sliding plate and a driving unit. The threaded rods 8 are arranged horizontally and parallel to each other. The threaded rods 8 are arranged above the recessed part 5. The two ends of the threaded rods 8 are rotatably connected to the outer shell 1. The two guide rods 18 are correspondingly arranged below the threaded rods 8. The push plate 9 is perpendicular to the first supporting wheel 4, the push plate 9 is threadedly connected to the threaded rod 8, the push plate 9 is slidably connected to the guide rods 18, and the bottom contour of the push plate 9 fits the recessed part 5. The driving unit is connected to the threaded rod 8 and is used to drive the threaded rod 8 to rotate synchronously. The push plate 9 is provided with a feeding hole. The sliding plate and the push plate 9 are slidably connected to close or open the feeding hole. The sandblasting nozzle 2 is arranged at a position above the middle of the two threaded rods 8 to avoid motion interference with the push plate 9. When the driving unit causes the two threaded rods 8 to rotate synchronously, the push rod moves along the axial direction of the threaded rod 8. The push plate 9 reciprocates in the recess 5 to push the workpiece that has completed shot blasting out of the discharge port, avoiding the need for the staff to take the workpiece out of the recess 5. Before the staff puts the workpiece into the recess 5, the drive unit moves the push plate 9 to a position away from the feed port. After the shot blasting is completed, the drive unit moves the push plate 9 toward the feed port, thereby pushing the workpiece out of the outer shell 1. In this embodiment. A guide sleeve and a threaded sleeve are fixedly provided on the push plate 9, and the guide sleeve and the threaded sleeve are respectively threadedly connected and slidably connected to the threaded rod 8 and the guide rod 18, so as to avoid or reduce the situation where the push plate 9 is tilted when working.

[0025] like Figure 2 As shown, preferably, the driving unit includes two second motors 11 and a controller, and the end of the threaded rod 8 extends to the outside of the outer shell 1 and is provided with a first gear 10. The second motor 11 is fixedly connected to the outer shell 1, and the output shaft of the second motor 11 is provided with a second gear 19, and the first gear 10 and the second gear 19 are meshed. The controller is electrically connected to the second motor 11. The two second motors 11 provide sufficient power source for the movement of the push plate 9. The controller enables the two second motors 11 to control the two threaded rods 8 to rotate synchronously to avoid jamming when driving the push plate 9 to move.

[0026] like Figure 3 , 4As shown, preferably, the opening and closing assembly includes a baffle 14, two torsion bars 13 and a latch 15, the size of the baffle 14 is adapted to the size of the feed port or the discharge port, the upper edge of the baffle 14 is hinged to the upper edge of the feed port or the discharge port, the rotation axis of the torsion bar 13 and the baffle 14 are perpendicular, the upper end of the torsion bar 13 is hinged to the outer shell 1, and the lower end of the torsion bar 13 is hinged to the lower position of the baffle 14. The outer shell 1 and the baffle 14 are fixedly provided with a connecting block so as to be hinged to the torsion bar 13. The second supporting wheel 6 is rotatably connected to the side of the baffle 14 close to the outer shell 1. The latch 15 is slidably arranged on the outer side of the baffle 14 and close to the edge, and a positioning hole is arranged on the outer shell 1, and the latch 15 is adapted to the positioning hole. When it is necessary to put the workpiece into the recess 5 or take it out from the recess 5, the baffle 14 is opened. In this embodiment, a handle is provided on the outside of the baffle 14. When the staff pulls the handle upward, the torsion bar 13 will provide a force large enough to make the baffle 14 automatically rotate upward. When the workpiece is being shot blasted, the latch 15 needs to be inserted into the positioning hole so that the baffle 14 is locked. In this embodiment, a sliding sleeve 16 is fixedly provided on the baffle 14, and the latch 15 and the sliding sleeve 16 are slidably matched. A limited seat 17 is fixedly provided on the outer shell, and the positioning hole is provided on the side wall of the limited seat 17. In this embodiment, a guide plate 24 is provided at the position of the discharge port of the outer shell 1, and the guide plate 24 extends to the bottom of the track 3 to prevent the workpiece from falling into the inner shell 1. In this embodiment, a conical guide cylinder 22 is provided at the other end of the second support wheel 6 on the baffle 14 to prevent the track 3 from being deformed and the second support wheel 6 from being blocked.

[0027] Preferably, a gap is provided between the push plate 9 and the crawler 3 to reduce the friction between the push plate 9 and the crawler 3. In this embodiment, the crawler 3 is made of rubber.

[0028] Preferably, a sealing strip is provided at the contact position between the baffle 14 and the outer shell 1 to prevent the gas carrying dust from escaping during shot blasting.

[0029] like Figure 5 As shown, preferably, a groove 21 is provided on the inner side of the outer shell 1 corresponding to the side of the crawler 3, and the side of the crawler 3 and the groove 21 are slidably matched, and the groove 21 is disconnected at the position of the feed port or the discharge port. The groove 21 makes the movement track of the crawler 3 more stable, avoiding a large reduction between the crawler 3 and the outer shell 1, so that the workpiece side crawler 3 falls off.

[0030] Preferably, the outer shell 1 is connected to a spiral dust collector, and the dust generated by shot blasting in the plurality of recesses 5 all enters the same spiral dust collector.

[0031] Preferably, the third support wheel 7 and the uppermost first support wheel 4 are at the same horizontal plane, so that the recess 5 has sufficient depth.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A multi-chamber crawler shot blasting machine, characterized in that: The invention comprises an outer shell (1), a first motor (20), a crawler (3), four first support wheels (4), a plurality of second support wheels (6), a plurality of third support wheels (7), a shot blaster, a pushing assembly and two sets of opening and closing assemblies. The crawler (3) is connected end to end and arranged in a rectangular shape inside the outer shell (1). The inner cavity widths of the crawler (3) and the outer shell (1) are adapted. The first support wheels (4) are arranged horizontally and parallel to each other. The first support wheels (4) are respectively located at the four corners of the inner ring of the crawler (3) and are in contact with the crawler (3). The crawler (3) is provided with a plurality of recesses (5) on the upper horizontal section. The second support wheels (6) are rotatably arranged on both sides of the bottom of the recesses (5) and are in rolling contact with the crawler (3). The third support wheels (7) are arranged at two sides. The outer shell (1) is provided with a feed port on one side corresponding to the recess (5); the pushing component is arranged at the recess (5) and connected to the outer shell (1), and the pushing component is used to push the workpiece out of the discharge port; the opening and closing component is connected to the outer shell (1) and is used to open or close the feed port; the shot blaster is connected to the inside of the outer shell (1) and a sandblasting nozzle (2) is arranged above the recess (5); the first motor (20) is used to drive one of the first support wheels (4) to rotate; the second support wheel (6) and the third support wheel (7) are respectively connected to the opening and closing component and the outer shell (1) for rotation.

2. A multi-chamber crawler shot blasting machine as claimed in claim 1, characterized in that: The pushing assembly comprises two threaded rods (8), two guide rods (18), a push plate (9), a sliding plate (12) and a driving unit, wherein the threaded rods (8) are arranged horizontally and parallel to each other, the threaded rods (8) are arranged above the recessed part (5), the two ends of the threaded rod (8) are rotatably connected to the outer shell (1), and the two guide rods (18) are correspondingly arranged below the threaded rod (8); the push plate (9) and the first supporting wheel (4) are perpendicular, the push plate (9) and the threaded rod (8) are threadedly connected, the push plate (9) and the guide rods (18) are slidably connected, and the bottom contour of the push plate (9) is in contact with the recessed part (5); the driving unit is connected to the threaded rod (8) and is used to drive the threaded rod (8) to rotate synchronously; a feeding hole is provided on the push plate (9); the sliding plate (12) and the push plate (9) are slidably connected to close or open the feeding hole.

3. A multi-chamber crawler shot blasting machine as claimed in claim 2, characterized in that: The drive unit comprises two second motors (11) and a controller; the end of the threaded rod (8) extends to the outside of the outer shell (1) and is provided with a first gear (10); the second motor (11) and the outer shell (1) are fixedly connected; the output shaft of the second motor (11) is provided with a second gear (19); the first gear (10) and the second gear (19) are meshed; and the controller and the second motor (11) are electrically connected.

4. A multi-chamber crawler shot blasting machine as claimed in claim 1, characterized in that: The opening and closing assembly comprises a baffle (14), two torsion bars (13) and a latch (15); the size of the baffle (14) is adapted to the size of the feed port or the discharge port; the upper edge of the baffle (14) is hinged to the upper edge of the feed port or the discharge port; the rotation axes of the torsion bar (13) and the baffle (14) are perpendicular; the upper end of the torsion bar (13) is hinged to the outer shell (1); the lower end of the torsion bar (13) is hinged to the lower position of the baffle (14); the second supporting wheel (6) and the baffle (14) are rotatably connected near a side of the outer shell (1); the latch (15) is slidably arranged on the outer side of the baffle (14) and near the edge; a positioning hole is arranged on the outer shell (1); the latch (15) is adapted to the positioning hole.

5. A multi-chamber crawler shot blasting machine as claimed in claim 2, characterized in that: A gap is provided between the push plate (9) and the crawler belt (3).

6. A multi-chamber crawler shot blasting machine as claimed in claim 4, characterized in that: A sealing strip is provided at the position where the baffle (14) contacts the outer shell (1).

7. A multi-chamber crawler shot blasting machine as claimed in claim 1, characterized in that: A groove (21) is provided on the inner side of the outer shell (1) corresponding to the side of the crawler (3); the side of the crawler (3) and the groove (21) are slidably matched, and the groove (21) is disconnected at the position of the feed port or the discharge port.

8. A multi-chamber crawler shot blasting machine as claimed in claim 1, characterized in that: The outer shell (1) is connected to a spiral dust collector.

9. A multi-chamber crawler shot blasting machine as claimed in claim 1, characterized in that: The third support wheel (7) and the uppermost first support wheel (4) are on the same horizontal plane.

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