A belt steel surface treatment shot blasting mechanism

Abstract

The utility model discloses a strip steel surface treatment shot -blasting mechanism, including strip steel treatment casing and throw head ring around group, throw head ring around group installs on the strip steel treatment casing, throw head ring around group includes side angle regulation throw head, upper angle regulation throw head and lower angle regulation throw head, be equipped with respectively with side angle regulation throw head, upper angle regulation throw head and lower angle regulation throw head corresponding throw head opening on the strip steel treatment casing, be equipped with strip steel treatment cavity in the strip steel treatment casing. Advantageous effects lie in: through the controller control throw head in directional sleeve fine adjustment angle, adaptation efficiency promotion, reduce manual intervention, scraper elastic pressure assembly cooperation hypalon scraper and magnetic suspension fan, effectively clean steel shot, reduce steel shot residual quantity, add side throw head cooperation guide plate, and strip steel edge rust skin removes the efficiency of greatly improving, and side angle regulation throw head can be directly added, and the transformation of convenient to existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting equipment, and in particular to a shot blasting mechanism for surface treatment of steel strip. Background Technology

[0002] Rust scale on the surface of steel strips is usually treated by shot blasting machines. Existing shot blasting machines mainly rely on symmetrically arranged shot heads to blast the upper and lower surfaces of the steel strips. Side treatment is mostly done manually, which has many limitations, as follows: The shot blasting head layout is simple, relying only on the top and bottom blasting heads, without dedicated blasting heads or guide plates on the sides. The steel shot reflection path is not optimized, resulting in a blind spot. The lack of a reflection device means that the steel shot cannot effectively cover the sides of the strip. The rust removal rate of the strip edge is low, requiring secondary manual processing. The lack of side blasting heads results in a rust and iron oxide scale removal rate of less than 60% on the strip edge. The adjustment accuracy is low. The existing adjustment of the inner directional sleeve of the upper and lower blasting heads relies on manual labor. After replacing the directional sleeve, the position needs to be manually calibrated. The manual calibration of the directional sleeve takes more than 30 minutes per time. The position deviation causes the shot blasting density to fluctuate, with a deviation of more than 2 mm and the shot blasting uniformity error reaching ±15%. The cleaning system has defects. Traditional scraper materials are not wear-resistant (such as ordinary rubber), and after a period of use, the bottom of the scraper can no longer contact the surface of the strip steel, requiring frequent inspection and replacement. Utility Model Content

[0003] The purpose of this invention is to provide a shot blasting mechanism for surface treatment of steel strip in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A shot blasting mechanism for surface treatment of strip steel includes a strip steel treatment housing and a shot blasting head surround assembly. The shot blasting head surround assembly is mounted on the strip steel treatment housing. The shot blasting head surround assembly includes a side angle adjustable shot blasting head, an upper angle adjustable shot blasting head, and a lower angle adjustable shot blasting head. The strip steel treatment housing has shot blasting head openings corresponding to the side angle adjustable shot blasting head, the upper angle adjustable shot blasting head, and the lower angle adjustable shot blasting head, respectively. The strip steel treatment housing has a strip steel treatment cavity. The strip steel treatment cavity is equipped with a scraper spring pressure assembly, a blow pipe, and an in-cavity conveying mechanism. A wear-resistant and high-temperature resistant scraper is installed at the bottom of the scraper spring pressure assembly. A PLC controller is installed on the outer shell wall of the strip steel treatment housing. The shot blasting head surround assembly and the scraper spring pressure assembly are both communicatively connected to the PLC controller.

[0005] Furthermore, the side angle adjusting throwing head, the upper angle adjusting throwing head, and the lower angle adjusting throwing head are each provided in two sets. The two sets of lower angle adjusting throwing heads are installed on the bottom sides of the strip steel processing housing, the two sets of upper angle adjusting throwing heads are installed on the top sides of the strip steel processing housing, and the two sets of side angle adjusting throwing heads are installed on the two side housings of the strip steel processing housing.

[0006] Furthermore, the side angle adjusting shot blasting head includes a shot blasting chamber frame, a directional sleeve groove frame, and a shot blasting motor. The directional sleeve groove frame is installed inside the shot blasting chamber frame, and the shot blasting motor is installed outside the shot blasting chamber frame. The end of the motor shaft of the shot blasting motor extends into the directional sleeve groove of the directional sleeve groove frame and is rotatably mounted with a directional sleeve. The inner toothed ring is installed at the edge of the directional sleeve. A servo adjusting motor assembly is installed on the outside of the shot blasting chamber frame. The rotating shaft of the servo adjusting motor assembly extends into the ring of the inner toothed ring and is equipped with an inner ring drive tooth. The inner ring drive tooth meshes with the ring teeth inside the inner toothed ring. The motor shaft of the shot blasting chamber frame is equipped with a shot blasting impeller via an impeller frame.

[0007] Furthermore, the scraper spring assembly includes a pressure cylinder, the piston rod end of which is connected to a spring bar via a pressure sensor, and at least two springs are mounted on the bottom surface of the spring bar.

[0008] Furthermore, the strip surface treatment shot blasting mechanism also includes a magnetic levitation fan, which is connected to the blowing pipe via an air delivery pipe.

[0009] Furthermore, the strip surface treatment shot blasting mechanism also includes an auxiliary hopper, a shot hopper, and a dust collector. A lower screw conveyor is installed at the bottom of the strip treatment shell, and an elevator is installed at the outlet of the lower screw conveyor. A separator is connected to the top of the elevator through an upper screw conveyor. The auxiliary hopper, shot hopper, and dust collector are all connected to the separator through pipes.

[0010] Furthermore, the front and rear sides of the strip steel processing housing are provided with inlet and outlet ports, and an inlet conveyor roller group is installed on the inlet port.

[0011] Furthermore, guide plates are installed on the inner sides of the upper and lower holes of the blasting head opening.

[0012] The beneficial effects are as follows: The steel strip surface treatment shot blasting mechanism of this utility model controls the inner directional sleeve of the blasting head to finely adjust the angle through the controller, which improves the adaptation efficiency and reduces manual intervention. The scraper spring pressure assembly, together with the Hypalon scraper and magnetic levitation fan, effectively cleans the steel shot and reduces the amount of steel shot residue. The addition of a side blasting head with a guide plate greatly improves the efficiency of removing rust from the edge of the steel strip. The side angle adjustable blasting head can be directly installed, which is convenient for the modification of existing equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a shot blasting mechanism for surface treatment of strip steel according to the present invention; Figure 2 This is a schematic diagram of the interior of the strip steel treatment shell of the shot blasting mechanism for strip steel surface treatment described in this utility model; Figure 3 This is a schematic diagram of the shot cleaning mechanism of the shot blasting mechanism for strip steel surface treatment described in this utility model; Figure 4 This is a schematic diagram of the angle-adjustable shot blasting head of a shot blasting mechanism for surface treatment of strip steel according to this utility model; Figure 5 This is a schematic diagram of the scraper spring pressure assembly of a shot blasting mechanism for strip surface treatment described in this utility model.

[0014] The annotations in the attached figures are explained as follows: 1. Steel strip processing housing; 2. Shot blasting head surround assembly; 21. Side angle adjustable shot blasting head; 211. Shot blasting chamber frame; 212. Servo adjustment motor assembly; 213. Shot blasting motor; 214. Impeller frame; 215. Shot blasting impeller; 216. Directional sleeve groove frame; 217. Directional sleeve; 218. Directional sleeve rotating body; 219. Internal gear ring; 220. Inner ring drive gear; 22. Upper angle adjustable shot blasting head; 23. Lower angle adjustable shot blasting head; 3 1. PLC controller; 4. Lower screw conveyor; 5. Elevator; 6. Auxiliary bucket; 7. Shot bucket; 8. Separator; 9. Dust collector; 10. Magnetic levitation fan; 11. Scraper spring assembly; 111. Spring strip; 112. Pressure cylinder; 113. Pressure sensor; 114. Spring; 12. Blowpipe; 13. Wear-resistant and high-temperature resistant scraper; 14. Inlet conveyor roller group; 15. In-cavity conveying mechanism; 16. Guide plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0016] The following is combined Figures 1 to 5 The shot blasting mechanism for strip surface treatment provided in this embodiment will be further described as follows: Please refer to Figure 1-2 The present invention provides a strip surface treatment shot blasting mechanism, including a strip treatment housing 1 and a shot blasting head surround group 2. The shot blasting head surround group 2 is installed on the strip treatment housing 1. The shot blasting head surround group 2 can process the strip inside the strip treatment housing 1 from multiple angles, and the upper, lower and side surfaces of the strip are shot blasted.

[0017] The sling head surround group 2 includes a side angle adjustable sling head 21, an upper angle adjustable sling head 22, and a lower angle adjustable sling head 23. Each of the side angle adjustable sling heads 21, upper angle adjustable sling head 22, and lower angle adjustable sling head 23 has two sets. The two sets of lower angle adjustable sling heads 23 are installed on the bottom sides of the strip steel processing housing 1, the two sets of upper angle adjustable sling heads 22 are installed on the top sides of the strip steel processing housing 1, and the two sets of side angle adjustable sling heads 21 are installed on the side shells of the strip steel processing housing 1. The strip steel processing housing 1 has sling head openings corresponding to the side angle adjustable sling head 21, upper angle adjustable sling head 22, and lower angle adjustable sling head 23, respectively, to facilitate the slinging ports of the side angle adjustable sling head 21, upper angle adjustable sling head 22, and lower angle adjustable sling head 23 entering the strip steel processing housing 1 through the sling head openings, thereby achieving strip steel surface treatment.

[0018] Reference Figure 3 The strip processing housing 1 has a strip processing chamber, in which a scraper spring assembly 11, a purge pipe 12, and an in-chamber conveying mechanism 15 are installed. The scraper spring assembly 11 and the purge pipe 12 are located above the in-chamber conveying mechanism 15. A wear-resistant and high-temperature resistant scraper 13 is installed at the bottom of the scraper spring assembly 11. The wear-resistant and high-temperature resistant scraper 13 is made of Hypalon material. It is pressed down onto the surface of the strip by the scraper spring assembly 11. By adjusting the downward pressure and the elastic buffer downward pressure structure, steel shot can be applied to the surface of strips of different thicknesses.

[0019] A PLC controller 3 is installed on the outer shell wall of the strip steel processing housing 1. The throwing head surround group 2 and the scraper spring pressure assembly 11 are all connected to the PLC controller 3. By inputting different strip steel sizes and models, the fine adjustment of the throwing head and the adjustment of the downward pressure of the wear-resistant and high-temperature resistant scraper 13 can be realized.

[0020] like Figure 1 - Figure 5 As shown, embodiments of this utility model also disclose the following more optimized specific structures: The side-angle adjustable shot blasting head 21 includes a shot blasting chamber frame 211, a directional sleeve groove frame 216, and a shot blasting motor 213. The directional sleeve groove frame 216 is installed inside the shot blasting chamber frame 211, and the shot blasting motor 213 is installed on the outside of the shot blasting chamber frame 211. The end of the motor shaft of the shot blasting motor 213 extends into the directional sleeve groove of the directional sleeve groove frame 216 and is rotatably mounted with a directional sleeve 217 via a directional sleeve rotor 218. An internal toothed ring 219 is installed at the edge of the directional sleeve 217. A servo adjustment motor assembly 212 is installed on the outside of the shot blasting chamber frame 211, which mainly consists of a steering component and a servo motor. The rotating shaft extends into the inner toothed ring 219 and is equipped with an inner ring drive tooth 220. The inner ring drive tooth 220 meshes with the ring teeth in the inner toothed ring 219, driving it to rotate. The motor shaft of the shot blasting frame 211 is equipped with a shot blasting impeller 215 through an impeller frame 214. The shot blasting impeller 215 is a commonly used shot blasting structure, which can throw out the steel shot delivered by the directional sleeve 217. The steel shot is guided into the directional sleeve 217 through the pipe on the front side of the shot blasting frame 211. The directional sleeve 217 is driven by a servo adjustment motor group 212 for fine adjustment, realizing the fine adjustment of the directional sleeve 217 when shot blasting different types of steel strips.

[0021] The scraper spring pressure assembly 11 includes a pressure cylinder 112. The piston rod end of the pressure cylinder 112 is connected to a spring strip 111 via a pressure sensor 113. At least two springs 114 are installed on the bottom surface of the spring strip 111. The springs 114 are used to connect the wear-resistant and high-temperature resistant scraper 13. They can be adjusted according to pressure feedback and have a certain buffering pressure capacity. The wear-resistant and high-temperature resistant scraper 13 is a V-shaped plate.

[0022] The strip surface treatment shot blasting mechanism also includes a magnetic levitation fan 10, which is connected to the blowing pipe 12 through an air delivery pipe to further clean the steel shot and dust.

[0023] The strip surface treatment shot blasting mechanism also includes an auxiliary hopper 6, a shot hopper 7, and a dust collector 9. A lower screw conveyor 4 is installed at the bottom of the strip treatment housing 1, and an elevator 5 is installed at the outlet of the lower screw conveyor 4. A separator 8 is connected to the top of the elevator 5 through an upper screw conveyor. The auxiliary hopper 6, shot hopper 7, and dust collector 9 are all connected to the separator 8 through pipes. This is the main structure of the existing steel shot treatment and will not be described in further detail.

[0024] The front and rear sides of the strip processing housing 1 are provided with inlet and outlet ports, and an inlet conveyor roller group 14 is installed on the inlet port.

[0025] Guide plates 16 are installed on the inner side of the upper and lower holes of the shot blasting head. The guide plates 16 can reflect steel shot to the side of the strip, increasing the blind zone coverage to 98%.

[0026] like Figure 1 - Figure 5 When the strip surface treatment shot blasting mechanism shown is in use, the outlet pressure of the magnetic levitation fan 10 is 0.65 MPa, and the negative pressure of the dust collector 9 is 0.02 MPa. The magnetic levitation fan 10 ensures that it can remove the residual steel shot on the strip, and the dust collector 9 ensures that it can suck up all the dust and iron oxide powder. When treating different types of strips, the directional sleeves 217 of each blasting head in the blasting head surround group 2 can be finely adjusted by the servo adjustment motor group to make it more applicable and improve the cleaning efficiency. The scraper spring pressure assembly 11, in conjunction with the magnetic levitation fan, makes the amount of residual steel shot even lower. In actual use, the shot blasting uniformity error of the strip surface treatment shot blasting mechanism in this embodiment is <5%, and the amount of residual steel shot is <0.08 g / m². By controlling the fine adjustment of the directional sleeve by PLC, the adaptation efficiency is greatly improved and manual intervention is reduced.

[0027] The side angle adjustable shot blasting head 21 can be installed on an existing shot blasting structure.

[0028] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A shot blasting mechanism for surface treatment of steel strip, characterized in that: The equipment includes a strip processing housing (1) and a sling head surround assembly (2). The sling head surround assembly (2) is mounted on the strip processing housing (1). The sling head surround assembly (2) includes a side angle adjustable sling head (21), an upper angle adjustable sling head (22), and a lower angle adjustable sling head (23). The strip processing housing (1) is provided with sling head openings corresponding to the side angle adjustable sling head (21), the upper angle adjustable sling head (22), and the lower angle adjustable sling head (23), respectively. The strip steel processing housing (1) is provided with a strip steel processing chamber. The strip steel processing chamber is equipped with a scraper spring pressure assembly (11), a blow pipe (12) and an in-cavity conveying mechanism (15). A wear-resistant and high-temperature resistant scraper (13) is installed at the bottom of the scraper spring pressure assembly (11). A PLC controller (3) is installed on the outer shell wall of the strip steel processing housing (1). The throwing head surround group (2) and the scraper spring pressure assembly (11) are both connected to the PLC controller (3).

2. The shot blasting mechanism for strip surface treatment according to claim 1, characterized in that: The side angle adjusting throwing head (21), the upper angle adjusting throwing head (22) and the lower angle adjusting throwing head (23) are each provided in two sets. The two sets of lower angle adjusting throwing heads (23) are installed on the bottom sides of the strip steel processing housing (1), the two sets of upper angle adjusting throwing heads (22) are installed on the top sides of the strip steel processing housing (1), and the two sets of side angle adjusting throwing heads (21) are installed on the two side housings of the strip steel processing housing (1).

3. The shot blasting mechanism for surface treatment of strip steel according to claim 1, characterized in that: The side angle adjusting shot blasting head (21) includes a shot blasting chamber frame (211), a directional sleeve groove frame (216), and a shot blasting motor (213). The directional sleeve groove frame (216) is installed inside the shot blasting chamber frame (211), and the shot blasting motor (213) is installed outside the shot blasting chamber frame (211). The end of the motor shaft of the shot blasting motor (213) extends into the directional sleeve groove of the directional sleeve groove frame (216) and is rotatably mounted with a directional sleeve (217) via a directional sleeve rotor (218). An internal gear ring (219) is installed at the edge of the sleeve (217). A servo adjustment motor assembly (212) is installed on the outside of the blasting frame (211). The rotating shaft of the servo adjustment motor assembly (212) extends into the ring of the internal gear ring (219) and is equipped with an inner ring drive tooth (220). The inner ring drive tooth (220) meshes with the ring tooth in the internal gear ring (219). The motor shaft of the blasting frame (211) is equipped with a shot blasting impeller (215) through an impeller frame (214).

4. The shot blasting mechanism for strip surface treatment according to claim 1, characterized in that: The scraper spring assembly (11) includes a pressure cylinder (112), and the piston rod end of the pressure cylinder (112) is connected to a spring bar (111) via a pressure sensor (113). At least two springs (114) are installed on the bottom surface of the spring bar (111).

5. The shot blasting mechanism for surface treatment of strip steel according to claim 1, characterized in that: The strip surface treatment shot blasting mechanism also includes a magnetic levitation fan (10), which is connected to the blow pipe (12) via an air delivery pipe.

6. The shot blasting mechanism for surface treatment of strip steel according to claim 1, characterized in that: The strip surface treatment shot blasting mechanism also includes an auxiliary bucket (6), a shot bucket (7) and a dust collector (9). A lower screw conveyor (4) is installed at the bottom of the strip treatment housing (1). An elevator (5) is installed at the outlet of the lower screw conveyor (4). A separator (8) is connected to the top of the elevator (5) through an upper screw conveyor. The auxiliary bucket (6), shot bucket (7) and dust collector (9) are all connected to the separator (8) through pipes.

7. The shot blasting mechanism for surface treatment of strip steel according to claim 1, characterized in that: The front and rear sides of the strip steel processing housing (1) are provided with inlet and outlet ports, and an inlet conveyor roller group (14) is installed on the inlet port.

8. The shot blasting mechanism for surface treatment of steel strip according to claim 1, characterized in that: Guide plates (16) are installed on the inner side of the upper and lower holes of the blast head opening.

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