Pass-type shot blasting device for profile steel surface treatment

Abstract

The utility model relates to the technical field of shot blasting machines, and discloses a pass-type section steel surface treatment shot blasting device which comprises a pass-type polishing cavity and a steel shot circulating channel, a shot blasting machine is fixedly installed in the pass-type polishing cavity, an auger is rotationally connected in a vertical section of the steel shot circulating channel through a bearing, and the steel shot circulating channel is internally provided with a shot blasting machine. A driving shaft of the auger is fixedly connected with the output end of a driving motor, the driving motor is fixedly installed on a steel shot circulating channel, a cleaning mechanism is arranged on the steel shot circulating channel, a cleaning cavity is formed in a vertical section of the steel shot circulating channel, the number of circulating paths of steel shots does not need to be increased, and an additional cleaning cavity does not need to be arranged. The purpose of reducing cost and improving efficiency can be achieved on the premise that the cleaning effect is guaranteed, the air inlet holes are obliquely formed in the mode that the front portion is high and the rear portion is low, on one hand, light powder can be sucked in, on the other hand, dust suction airflow in the steel shot circulation channel is obliquely upward, and obvious resistance cannot be generated to rising of steel shots.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machine technology, specifically to a through-type shot blasting device for surface treatment of profile steel. Background Technology

[0002] Shot blasting machines are casting equipment that uses high-speed shot blasting to clean or strengthen the surface of castings. In the field of profile steel processing, shot blasting machines are often used to remove excess residue from the surface of workpieces. During the shot blasting process, dust particles impacted from the treated surface move into the shot hopper along with the steel shot. Ideally, all dust is sucked away by a dust collector, while all shot remains in the hopper for continued recycling. However, in existing shot blasting machines, a considerable amount of dust remains in the hopper and enters the next cycle with the steel shot, while a considerable amount of steel shot is sucked away by the dust collector. This results in dust particles entering the shot blasting wheel accelerating its wear, and the removal of steel shot by the dust collector increasing the amount of steel shot lost per unit area. To solve these problems, some manufacturers set up a special cleaning chamber at the steel shot flow point of the shot blasting machine. This design has the following two problems: 1. It obstructs the circulation of steel shot, significantly increasing energy loss during steel shot circulation; 2. It increases the overall size of the equipment and increases costs. Utility Model Content

[0003] The purpose of this invention is to provide a through-type shot blasting device for surface treatment of profiled steel, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a through-type shot blasting device for surface treatment of profile steel, comprising a through-type polishing chamber and a shot circulation channel. A shot blasting machine is fixedly installed inside the through-type polishing chamber. An auger is rotatably connected to the vertical section of the shot circulation channel via bearings. The drive shaft of the auger is fixedly connected to the output end of a drive motor. The drive motor is fixedly installed on the shot circulation channel. A cleaning mechanism is provided on the shot circulation channel.

[0005] The cleaning mechanism includes a high-strength perforated plate and a vacuum cleaner. The vertical section of the steel shot circulation channel has slots on its four sides. The high-strength perforated plate is fixedly installed in these slots. The diameter of the holes on the high-strength perforated plate is smaller than the diameter of the steel shot. The air inlet of the vacuum cleaner is connected to a negative pressure chamber via a pipe. A negative pressure head is fixedly installed on the outer wall of the negative pressure chamber. The negative pressure head is fixedly installed on the steel shot circulation channel by screws and is held in place in the front slot. An air inlet is located on the back of the negative pressure head, and the air inlet is inclined with a higher front and lower back.

[0006] Further, air filtering components are fixedly installed in through grooves on the back and left and right sides of the steel shot circulation channel by screws. The air filtering components include a detachable frame and a filter net. The detachable frame is fixedly connected to the steel shot circulation channel by screws. The filter net is fixedly installed in the detachable frame, and two filter nets are provided in the detachable frame.

[0007] Further, the negative pressure chamber is in a mountain shape, and three parts of the negative pressure chamber connected to the negative pressure head are equally spaced from bottom to top.

[0008] Further, the output end of the dust collector is connected to a filter box through a pipeline. The top of the filter box is connected to an exhaust pipe, and a filtering structure is fixedly installed inside the filter box.

[0009] Further, an opening and closing door is installed on the front of the filter box. The bottom inner wall of the filter box is an inclined surface, and the part close to the opening and closing door is the lowest.

[0010] Further, a feeding hopper is fixedly installed below the through-type polishing chamber, and the bottom end of the feeding hopper is connected to the input end of the steel shot circulation channel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The cleaning chamber is arranged in the vertical section of the steel shot circulation channel, without the need to increase the circulation path of the steel shot and without the need to set an additional cleaning chamber, which can achieve the purpose of cost reduction and efficiency improvement on the premise of ensuring the cleaning effect. The air inlet holes are arranged in an inclined manner with the front higher than the back. On the one hand, it can suck in the lighter powder, and on the other hand, it can make the airflow for dust collection in the steel shot circulation channel inclined upward, without generating an obvious resistance to the rising of the steel shot. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 a schematic structural diagram of the right side view of the present utility model;

[0015] Figure 3 is of the present utility model Figure 1 a schematic structural diagram of the right side sectional view of the present utility model;

[0016] Figure 4 is a schematic structural diagram of the steel shot circulation channel of the present utility model;

[0017] Figure 5 is a schematic structural diagram of the side sectional view of the negative pressure chamber of the present utility model;

[0018] Figure 6This is a structural schematic diagram of the side sectional view of the filter box of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the air filter component of this utility model.

[0020] In the diagram: 1. Through-type polishing chamber; 2. Steel shot circulation channel; 3. Shot blasting machine; 4. Drive motor; 5. Screw conveyor; 6. Cleaning mechanism; 601. High-strength perforated plate; 602. Negative pressure head; 603. Air filter components; 6031. Detachable frame; 6032. Filter screen; 604. Negative pressure chamber; 605. Air inlet; 606. Vacuum cleaner; 7. Filter box; 8. Exhaust pipe; 9. Filter structure; 10. Opening door; 11. Guide hopper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1-7 This utility model provides a technical solution: a through-type steel surface treatment shot blasting device, including a through-type polishing chamber 1 and a steel shot circulation channel 2. A shot blasting machine 3 is fixedly installed inside the through-type polishing chamber 1. An auger 5 is rotatably connected to the vertical section of the steel shot circulation channel 2 through a bearing. The drive shaft of the auger 5 is fixedly connected to the output end of a drive motor 4. The drive motor 4 is fixedly installed on the steel shot circulation channel 2. A cleaning mechanism 6 is provided on the steel shot circulation channel 2.

[0023] The cleaning mechanism 6 includes a high-strength perforated plate 601 and a vacuum cleaner 606. The vertical section of the steel shot circulation channel 2 has through grooves on its four sides. The high-strength perforated plate 601 is fixedly installed in these through grooves. The diameter of the holes in the high-strength perforated plate 601 is smaller than the diameter of the steel shot. The air inlet of the vacuum cleaner 606 is connected to a negative pressure chamber 604 via a pipe. A negative pressure head 602 is fixedly installed on the outer wall of the negative pressure chamber 604. The negative pressure head 602 is fixedly installed on the steel shot circulation channel 2 by screws and is engaged in the through groove at the front. An air inlet 605 is provided on the back of 602. The air inlet 605 is inclined with the front higher than the back. The cleaning chamber is set in the vertical section of the steel shot circulation channel 2. There is no need to increase the circulation path of the steel shot or set up an additional cleaning chamber. It can achieve the purpose of reducing costs and increasing efficiency while ensuring the cleaning effect. The inlet 605 is inclined with the front higher than the back. On the one hand, it can suck in lighter powder, and on the other hand, it can make the airflow of dust suction in the steel shot circulation channel 2 inclined upward, which will not create significant resistance to the rise of steel shot.

[0024] An air filter component 603 is fixedly installed in the through grooves on the back and left and right sides of the steel shot circulation channel 2 by screws. The air filter component 603 includes a detachable frame 6031 and a filter screen 6032. The detachable frame 6031 is fixedly connected to the steel shot circulation channel 2 by screws. The filter screen 6032 is fixedly installed in the detachable frame 6031. There are two filter screens 6032 in the detachable frame 6031. The detachable frame 6031 is set for installing the filter screen 6032. The filter screen 6032 is set for filtering the air entering the steel shot circulation channel 2 to prevent powder in the air from entering the steel shot circulation channel 2.

[0025] The negative pressure chamber 604 is mountain-shaped, and the three parts on the negative pressure chamber 604 that are connected to the negative pressure head 602 are distributed at equal intervals from bottom to top, so that the negative pressure range is larger and can correspond to the multiple air inlets 605 on the negative pressure head 602.

[0026] The output end of the vacuum cleaner 606 is connected to a filter box 7 through a pipe. The top of the filter box 7 is connected to an exhaust pipe 8. A filter structure 9 is fixedly installed inside the filter box 7. The filter box 7, exhaust pipe 8, and filter structure 9 are set up to filter air containing powder and prevent powder from splashing everywhere.

[0027] The filter box 7 has an opening and closing door 10 installed on the front. The bottom inner wall of the filter box 7 is inclined, and the part near the opening and closing door 10 is the lowest, which makes it convenient for workers to take out the powder in the filter box 7.

[0028] A guide hopper 11 is fixedly installed below the through-type polishing chamber 1. The bottom end of the guide hopper 11 is connected to the input end of the steel shot circulation channel 2. The guide hopper 11 is set to catch the steel shot rolling out of the through-type polishing chamber 1 and then guide the steel shot to the input end of the steel shot circulation channel 2.

[0029] Working principle: When in use, the drive motor 4 is turned on to drive the auger 5, and then the shot blasting machine 3 is turned on to throw out steel shot, which performs surface treatment on the profile steel passing through the through-type polishing chamber 1. The steel shot enters the guide hopper 11 from the through-type polishing chamber 1, and then enters the steel shot circulation channel 2, where it is conveyed upward by the auger 5. During the conveying process, powder is conveyed along with the steel shot. At this time, the vacuum cleaner 606 is turned on, and a negative pressure is formed at the air inlet 605 of the negative pressure head 602, which causes the airflow in the steel shot circulation channel 2 to flow into the negative pressure head 602. The airflow carries the powder into the negative pressure head 602, and then flows through the negative pressure chamber 604, the vacuum cleaner 606, the filter box 7, and the exhaust pipe 8 in sequence before being discharged. The powder is filtered out by the filter structure 9 when it flows through the filter box 7.

[0030] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A through-type shot blasting device for surface treatment of profile steel, comprising a through-type polishing chamber (1) and a steel shot circulation channel (2), characterized in that: A shot blasting machine (3) is fixedly installed inside the through-type polishing chamber (1). An auger (5) is rotatably connected to the vertical section of the steel shot circulation channel (2) through a bearing. The drive shaft of the auger (5) is fixedly connected to the output end of the drive motor (4). The drive motor (4) is fixedly installed on the steel shot circulation channel (2). A cleaning mechanism (6) is provided on the steel shot circulation channel (2). The cleaning mechanism (6) includes a high-strength perforated plate (601) and a vacuum cleaner (606). The vertical section of the steel shot circulation channel (2) has through slots on its four sides. The high-strength perforated plate (601) is fixedly installed in the through slots. The hole diameter on the high-strength perforated plate (601) is smaller than the diameter of the steel shot. The air inlet of the vacuum cleaner (606) is connected to a negative pressure chamber (604) through a pipe. A negative pressure head (602) is fixedly installed on the outer wall of the negative pressure chamber (604). The negative pressure head (602) is fixedly installed on the steel shot circulation channel (2) by screws. The negative pressure head (602) is stuck in the through slot in front. An air inlet (605) is opened on the back of the negative pressure head (602). The air inlet (605) is inclined with the front higher than the back.

2. The through-type shot blasting device for surface treatment of profile steel according to claim 1, characterized in that: An air filter component (603) is fixedly installed in the through grooves on the back and left and right sides of the steel shot circulation channel (2) by screws. The air filter component (603) includes a detachable frame (6031) and a filter screen (6032). The detachable frame (6031) is fixedly connected to the steel shot circulation channel (2) by screws. The filter screen (6032) is fixedly installed in the detachable frame (6031), and there are two filter screens (6032) in the detachable frame (6031).

3. The through-type shot blasting device for surface treatment of profile steel according to claim 1, characterized in that: The negative pressure chamber (604) is shaped like a mountain, and the three parts on the negative pressure chamber (604) that are connected to the negative pressure head (602) are distributed at equal intervals from bottom to top.

4. The through-type shot blasting device for surface treatment of profiled steel according to claim 1, characterized in that: The output end of the vacuum cleaner (606) is connected to a filter box (7) through a pipe. The top of the filter box (7) is connected to an exhaust pipe (8). A filter structure (9) is fixedly installed inside the filter box (7).

5. A through-type shot blasting device for surface treatment of profile steel according to claim 4, characterized in that: The filter box (7) has an opening and closing door (10) installed on the front. The bottom inner wall of the filter box (7) is inclined, and the part closest to the opening and closing door (10) is the lowest.

6. The through-type shot blasting device for surface treatment of profile steel according to claim 1, characterized in that: A guide hopper (11) is fixedly installed below the through-type polishing chamber (1), and the bottom end of the guide hopper (11) is connected to the input end of the steel shot circulation channel (2).

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