Steel bar rust removal device

Abstract

The utility model discloses a steel bar derusting device, which relates to the technical field of derusting, and comprises a derusting box, an inlet and an outlet which are arranged on the side surface of the derusting box, a nozzle which is arranged at the top end of the derusting box and is used for spraying derusting sand into the derusting box, and a grating plate which is arranged in the derusting box and is positioned between the inlet and the outlet, the dust collection mechanism is arranged on the side face of the rust removal box, and the traction mechanism drives the steel bars to enter the rust removal box from the inlet and then penetrate out of the rust removal box from the outlet. The dust collection mechanism is arranged on the rust removal box, rust removal sand sprayed by the nozzle is in the rust removal box, negative pressure is generated by the dust collection mechanism, dust is prevented from overflowing from the inlet and the outlet, and meanwhile the dust removal cloth bag can recycle the rust removal sand for reuse. A traction steel bar can enter the rust removal box from the inlet and penetrate out of the outlet after being subjected to rust removal, the process is convenient and rapid, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of rust removal, in particular to a steel bar rust removal device. Background Art

[0002] Nowadays, a large amount of steel bars are needed in construction. The spare steel bars are piled up on the construction site and can be used at any time during construction. However, the steel bars are not always available. Under the influence of various factors such as shutdown, vacation and weather, the surface of the piled steel bars will rust. If the rusted steel bars are used directly without rust removal, the strength of the steel-concrete structure will be affected.

[0003] The existing sandblasting and rust removal machine directly uses a spray gun to sandblast and rust the steel bars, which will stir up a large amount of dust and cause dust pollution to the construction site. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a steel bar rust removal device, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a steel bar rust removal device, including a rust removal box, an inlet and an outlet arranged on the side of the rust removal box, a nozzle arranged at the top of the rust removal box to spray rust removal sand into the rust removal box, a grille plate arranged in the rust removal box between the inlet and the outlet, a dust suction mechanism arranged on the side of the rust removal box, and a traction mechanism that drives the steel bars to enter the rust removal box from the inlet and then pass through the outlet.

[0006] Preferably, the entrance includes a first notch provided on the side of the rust removal box, a first support plate provided below the first notch and connected to the side of the rust removal box, a first active roller supported by the first support plate and located between the first notch and the first support plate, a first driven roller provided above the first active roller, and a guide groove provided on the first support plate; the guide groove is a plurality of parallel channels pointing to the interior of the rust removal box.

[0007] Preferably, two first supporting members are provided on the side of the rust removal box above the first groove, a first circular hole is provided on the first supporting member in the vertical direction, a first circular shaft movable up and down is provided in the first circular hole, a first disc is provided at the upper end of the first circular shaft, a first supporting sheet is provided at the lower end of the first circular shaft, a first spring is provided on the first circular shaft at a position between the first supporting sheet and the first supporting member, and the first driven roller is provided between the two first supporting sheets.

[0008] Preferably, the outlet includes a second slot provided on the side of the rust removal box, a second support plate provided below the second slot and connected to the side of the rust removal box, a second active roller supported by the second support plate and located between the second slot and the second support plate, and a second driven roller provided on the second active roller.

[0009] Preferably, two second supporting members are provided on the side of the rust removal box above the second groove, the second supporting member is provided with a second circular hole in the vertical direction, a second circular shaft movable up and down is provided in the second circular hole, a second disc is provided at the upper end of the second circular shaft, a second supporting sheet is provided at the lower end of the second circular shaft, a second spring is provided at a position between the second supporting sheet on the second circular shaft and the second supporting member, and the second driven roller is provided between the two second supporting sheets.

[0010] Preferably, the traction mechanism includes a first pulley arranged at one end of the first active roller, a second pulley arranged at one end of the second active roller, a support seat arranged on the side of the rust removal box, a servo motor arranged on the support seat, a reducer arranged on the first output shaft of the servo motor, a third pulley arranged on the second output shaft of the reducer, and a belt connecting the first pulley, the second pulley and the third pulley.

[0011] Preferably, an openable cover is provided at the top of the rust removal box, a third circular hole is provided on the cover, a circular tube is provided in the third circular hole, the nozzle pointing to the grid plate is provided at the lower end of the circular tube, and the upper end of the circular tube is connected to the hose of the sandblasting machine.

[0012] Preferably, the dust suction mechanism includes: a fourth circular hole arranged on the side of the rust removal box, a dust bag arranged on the fourth circular hole, a sealing cover arranged on the dust bag, a fifth circular hole arranged on the sealing cover, and a fan arranged on the fifth circular hole.

[0013] Preferably, a guide plate arranged obliquely upward is provided on the inner wall of the rust removal box above the outlet.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The steel bar rust removal device has a rust removal box, which is equipped with a dust suction mechanism. The rust removal sand sprayed from the nozzle is in the rust removal box, and the dust suction mechanism creates negative pressure to prevent dust from overflowing from the inlet and outlet. At the same time, the dust removal bag can also recycle the rust removal sand for reuse.

[0016] 2. The inlet and outlet of the steel bar derusting device can be used to pull steel bars into the derusting box from the inlet and pass through the outlet after derusting. The process is convenient and fast, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a steel bar rust removal device;

[0018] Figure 2 It is a schematic diagram of the first internal structure of the steel bar rust removal device;

[0019] Figure 3 It is a second internal structure schematic diagram of the steel bar rust removal device;

[0020] Figure 4 It is a side structural schematic diagram of the steel bar rust removal device.

[0021] In the figure: rust removal box 1, inlet 2, outlet 3, nozzle 4, grille plate 5, support block 6, first notch 7, first support plate 8, first active roller 9, first driven roller 10, guide groove 11, first support member 12, first circular shaft 13, first disc 14, first support sheet 15, first spring 16, second notch 17, second support plate 18, second active roller 19, second driven roller 20, second support member 21, second circular shaft 22, second disc 23, second support sheet 24, second spring 25, first pulley 26, second pulley 27, third pulley 28, belt 29, reducer 30, servo motor 31, cover plate 32, round tube 33, dust bag 34, sealing cover 35, fan 36, guide plate 37, support seat 38. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a steel bar rust removal device, comprising a rust removal box 1, an inlet 2 and an outlet 3 arranged on the side of the rust removal box 1, a nozzle 4 arranged at the top of the rust removal box 1 to spray rust removal sand into the rust removal box 1, a grille plate 5 arranged in the rust removal box 1 between the inlet 2 and the outlet 3, a dust suction mechanism arranged on the side of the rust removal box 1, and a traction mechanism driving the steel bar to enter the rust removal box 1 from the inlet 2 and then pass through the outlet 3. The rust removal box 1 is in the shape of a tetrahedron, and support blocks 6 are arranged on the four inner walls. The grille plate 5 is placed on the support block 6. The grille plate 5 can hold the steel bar entering the rust removal box 1, and the rust removal sand passes through the grille plate 5 and is sucked away by the dust suction mechanism.

[0024] The inlet 2 includes a first notch 7 provided on the side of the rust removal box 1, a first support plate 8 provided below the first notch 7 and connected to the side of the rust removal box 1, a first active roller 9 supported by the first support plate 8 and located between the first notch 7 and the first support plate 8, a first driven roller 10 provided above the first active roller 9, and a guide groove 11 provided on the first support plate 8; the guide groove 11 is a plurality of parallel channels pointing to the inside of the rust removal box 1. The channel is a narrow and long structure, which can keep the steel bar straight to enter the rust removal box 1 to a certain extent. The first active roller 9 and the first driven roller 10 sandwich the steel bar in the middle, and the first active roller 9 rotates to generate traction to pull the steel bar in.

[0025] Two first support members 12 are provided on the side of the rust removal box 1 above the first notch 7, the first support member 12 is provided with a first circular hole in the vertical direction, a first circular shaft 13 movable up and down is provided in the first circular hole, a first disc 14 is provided at the upper end of the first circular shaft 13, a first support sheet 15 is provided at the lower end of the first circular shaft 13, a first spring 16 is provided at a position between the first support sheet 15 and the first support member 12 on the first circular shaft 13, and the first driven roller 10 is provided between the two first support sheets 15. The first spring 16 applies a downward elastic force to the first driven roller 10 to cooperate with the first active roller 9 to strengthen the traction of the steel bar, and can also adapt to steel bars of different diameters.

[0026] The outlet 3 includes a second notch 17 provided on the side of the rust removal box 1, a second support plate 18 provided below the second notch 17 and connected to the side of the rust removal box 1, a second active roller 19 supported by the second support plate 18 and located between the second notch 17 and the second support plate 18, and a second driven roller 20 provided on the second active roller 19. The second active roller 19 and the second driven roller 20 sandwich the rust-removed steel bar in the middle, and the second active roller 19 rotates to generate traction to pull the steel bar out of the rust removal box 1.

[0027] Two second supporting members 21 are provided on the side of the rust removal box 1 above the second notch 17, and a second circular hole in the vertical direction is provided on the second supporting member 21, and a second circular shaft 22 movable up and down is provided in the second circular hole, and a second disc 23 is provided at the upper end of the second circular shaft 22, and a second supporting sheet 24 is provided at the lower end of the second circular shaft 22, and a second spring 25 is provided between the second supporting sheet 24 and the second supporting member 21 on the second circular shaft 22, and the second driven roller 20 is provided between the two second supporting sheets 24. The second spring 25 applies a downward elastic force to the second driven roller 20 to cooperate with the second active roller 19 to strengthen the traction of the steel bar, and can also adapt to steel bars of different diameters.

[0028] The traction mechanism includes a first pulley 26 provided at one end of the first active roller 9, a second pulley 27 provided at one end of the second active roller 19, a support seat 38 provided on the side of the rust removal box 1, a servo motor 31 provided on the support seat 38, a reducer 30 provided on the first output shaft of the servo motor 31, a third pulley 28 provided on the second output shaft of the reducer 30, and a belt 29 connecting the first pulley 26, the second pulley 27, and the third pulley 28. The servo motor 31 provides rotational power, and drives the first pulley 26 and the second pulley 27 to rotate synchronously through the third pulley 28 and the belt 29, so that the first active roller 9 and the second active roller 19 rotate synchronously to pull the steel bar.

[0029] The top of the rust removal box 1 is provided with an openable cover plate 32, a third circular hole is provided on the cover plate 32, a circular tube 33 is provided in the third circular hole, the lower end of the circular tube 33 is provided with the nozzle 4 pointing to the grid plate 5, and the upper end of the circular tube 33 is connected to the hose of the sandblasting machine. The number of the third circular holes can be multiple in a linear array, which is specifically determined by the width of the rust removal box 1. The sandblasting machine pumps the rust removal sand into the circular tube 33 through the hose and then sprays it out from the nozzle 4 to remove rust from the surface of the steel bars passing through.

[0030] The dust collecting mechanism includes: a fourth circular hole provided on the side of the rust removal box 1, a dust bag 34 provided on the fourth circular hole, a sealing cover 35 provided on the dust bag 34, a fifth circular hole provided on the sealing cover 35, and a fan 36 provided on the fifth circular hole. After the fan 36 is started, air is extracted from the sealing cover 35, and negative pressure is also generated in the rust removal box 1. Part of the rust removal sand is attracted into the dust bag 34, and the filtered air is discharged, thereby reducing sand blasting dust. As a matter of course, the dust bag 34 and the sealing cover 35 are both detachable.

[0031] On the inner wall of the rust removal box 1, a guide plate 37 arranged obliquely upward is provided above the outlet 3. The guide plate 37 can guide the steel bar to pass through the outlet 3.

[0032] When the steel bar rust removal device of the utility model is used:

[0033] Connect the round tube 33 to the hose of the sandblasting machine, start the fan 36 and the servo motor 31, extend the steel bar through the channel of the guide groove 11, and send it into the rust removal box 1 by the traction mechanism. The nozzle 4 sandblasts and removes rust and then sends it out from the outlet 3. It should be noted that the rust removal sand accumulated in the cloth bag needs to be cleaned after using it for a period of time.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel bar rust removal device, characterized in that: The invention comprises a rust removal box (1), an inlet (2) and an outlet (3) arranged on the side of the rust removal box (1), a nozzle (4) arranged at the top of the rust removal box (1) for spraying rust removal sand into the rust removal box (1), a grille plate (5) arranged in the rust removal box (1) between the inlet (2) and the outlet (3), a dust suction mechanism arranged on the side of the rust removal box (1), and a traction mechanism for driving steel bars to enter the rust removal box (1) from the inlet (2) and then pass through the outlet (3).

2. A steel bar rust removal device according to claim 1, characterized in that: The inlet (2) comprises a first notch (7) provided on the side of the rust removal box (1), a first support plate (8) provided below the first notch (7) and connected to the side of the rust removal box (1), a first active roller (9) supported by the first support plate (8) and located between the first notch (7) and the first support plate (8), a first driven roller (10) provided above the first active roller (9) and a guide groove (11) provided on the first support plate (8); the guide groove (11) is a plurality of parallel channels pointing to the inside of the rust removal box (1).

3. A steel bar rust removal device according to claim 2, characterized in that: Two first support members (12) are provided on the side of the rust removal box (1) above the first notch (7); a first circular hole is provided on the first support member (12) in the vertical direction; a first circular shaft (13) movable up and down is provided in the first circular hole; a first disc (14) is provided at the upper end of the first circular shaft (13); a first support sheet (15) is provided at the lower end of the first circular shaft (13); a first spring (16) is provided on the first circular shaft (13) at a position between the first support sheet (15) and the first support member (12); and the first driven roller (10) is provided between the two first support sheets (15).

4. A steel bar rust removal device according to claim 3, characterized in that: The outlet (3) comprises a second notch (17) provided on the side of the rust removal box (1), a second support plate (18) provided below the second notch (17) and connected to the side of the rust removal box (1), a second active roller (19) supported by the second support plate (18) and located between the second notch (17) and the second support plate (18), and a second driven roller (20) provided on the second active roller (19).

5. A steel bar rust removal device according to claim 4, characterized in that: Two second support members (21) are provided on the side of the rust removal box (1) above the second notch (17); a second circular hole is provided on the second support member (21) in the vertical direction; a second circular shaft (22) movable up and down is provided in the second circular hole; a second disc (23) is provided at the upper end of the second circular shaft (22); a second support sheet (24) is provided at the lower end of the second circular shaft (22); a second spring (25) is provided between the second support sheet (24) and the second support member (21) on the second circular shaft (22); and the second driven roller (20) is provided between the two second support sheets (24).

6. A steel bar rust removal device according to claim 5, characterized in that: The traction mechanism comprises a first pulley (26) arranged at one end of the first active roller (9), a second pulley (27) arranged at one end of the second active roller (19), a support seat (38) arranged on the side of the rust removal box (1), a servo motor (31) arranged on the support seat (38), a reducer (30) arranged on the first output shaft of the servo motor (31), a third pulley (28) arranged on the second output shaft of the reducer (30), and a belt (29) connecting the first pulley (26), the second pulley (27), and the third pulley (28).

7. A steel bar rust removal device according to claim 1, characterized in that: The top of the rust removal box (1) is provided with an openable cover plate (32), a third circular hole is provided on the cover plate (32), a circular tube (33) is provided in the third circular hole, the lower end of the circular tube (33) is provided with the nozzle (4) pointing to the grid plate (5), and the upper end of the circular tube (33) is connected to the hose of the sandblasting machine.

8. A steel bar rust removal device according to claim 1, characterized in that: The dust suction mechanism comprises: a fourth circular hole arranged on the side of the rust removal box (1), a dust bag (34) arranged on the fourth circular hole, a sealing cover (35) covering the dust bag (34), a fifth circular hole arranged on the sealing cover (35), and a fan (36) arranged on the fifth circular hole.

9. A steel bar rust removal device according to claim 1, characterized in that: A guide plate (37) arranged obliquely upward is provided on the inner wall of the rust removal box (1) above the outlet (3).

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