Self-dust-removing shot blasting machine

Abstract

The utility model relates to a shot -blasting machine technical field, concretely is a kind of self dust removal type shot -blasting machine, including box and base, the box is fixedly installed on base, screen rack is equipped between the box and base, mounting bracket is equipped between the box and base, the screen rack is located above mounting bracket, the screen rack and mounting bracket are all through sliding block and base sliding connection, screen belt is equipped on mounting bracket, the mounting bracket and screen rack are all in certain inclination angle, the first slide bar corresponding with sliding block is fixedly installed in base, by adopting upper and lower double-layer inclined screen structure, steel ball mixture is first fallen in upper layer screen rack, its mesh is larger, can be with large block impurity and part steel ball preliminary screening to lower layer, the mesh of screen belt on lower layer mounting bracket is finer, can further screen out dust and small impurity, in screening process, cam drives sliding block to slide along the first slide bar, cooperate first spring to make the whole screen rack and mounting bracket continue to shake.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machine technology, specifically a self-dust-removing shot blasting machine. Background Technology

[0002] Surface treatment and cleaning are indispensable basic processes in modern manufacturing, widely used in industries such as casting, forging, automobiles, shipbuilding, and steel structures. Among them, shot blasting technology, with its efficient and uniform treatment effect, has become a core means of strengthening workpieces, removing rust, removing sand, and surface finishing. However, while giving workpieces a brand-new surface, the shot blasting process is also a "miniature storm field": the impact of high-speed shot removes impurities while continuously generating a large amount of dust and debris. If these by-products are not treated in a timely and effective manner, they will not only drastically deteriorate the working environment and endanger the health of operators, but also seriously interfere with the operating efficiency of the shot blasting machine itself—dust pollution reduces visibility and affects process observation; impurity circulation exacerbates equipment wear and shortens the life of key components.

[0003] In the field of shot blasting machine technology, the design of material recovery and dust removal systems directly affects the efficiency and reliability of the equipment. Traditional shot blasting machines typically use a combination of bucket elevators and screw conveyors to transport and initially separate mixed materials, including whole shot, debris, and dust. This type of transmission mechanism is complex, space-consuming, and has a high failure rate, especially prone to clogging when handling wet or fine materials. For example, the utility model patent CN222289844U discloses a dust removal device for shot blasting machines, revealing a scheme including a vibrating screen assembly, a filter screen, and a dust removal assembly. While this scheme aims to improve filtration efficiency, its vibrating screen assembly is installed in a separate housing and driven by a relatively complex mechanical structure including a motor, coupling, turntable, and reciprocating rod. It is not integrated with the bottom structure of the shot blasting chamber and fails to fundamentally eliminate the transmission components such as the bucket elevator and screw conveyor. Furthermore, the screen in this scheme still faces the problem of easy clogging and the need for maintenance shutdowns when handling fine dust over long periods, affecting the efficiency of continuous operation. Therefore, we propose a self-dust-removing shot blasting machine. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a self-dust-removing shot blasting machine, including a housing and a base. The housing is fixedly installed on the base, and a screen frame is provided between the housing and the base. A mounting frame is provided between the housing and the base, and the screen frame is located above the mounting frame. Both the screen frame and the mounting frame are slidably connected to the base via sliders. A screen belt is provided on the mounting frame. Both the mounting frame and the screen frame are at a certain inclination angle. A first sliding rod corresponding to the slider is fixedly installed inside the base.

[0005] In some embodiments, the slider is slidably sleeved with a corresponding first slide rod, and two sets of symmetrically distributed first springs are fitted on the first slide rod. The two ends of the two sets of first springs are respectively fixedly connected to the slider and the base. A cam corresponding to the slider is rotatably installed in the base, and the cam is fitted with the corresponding slider.

[0006] In some embodiments, two sets of symmetrically distributed winding rods are rotatably mounted inside the mounting frame, the screen belt is slidably connected to the mounting frame, and both ends of the screen belt are wound around the two sets of winding rods respectively, with synchronous pulleys sleeved on both sets of winding rods.

[0007] In some embodiments, the mounting frame is provided with a timing belt, which is respectively arranged corresponding to two sets of timing pulleys, and the timing belt is respectively connected to the two sets of timing pulleys for transmission.

[0008] In some embodiments, two sets of symmetrically distributed roller brushes are rotatably mounted on both sides of the mounting frame. The roller brushes are respectively fitted to the two sides of the screen belt. A sweeping brush fitted to the roller brushes is slidably mounted on the mounting frame. A second sliding rod corresponding to the sweeping brush is fixedly mounted on the mounting frame.

[0009] In some embodiments, a crank is rotatably mounted on the mounting bracket, and the crank is rotatably connected to the end of the connecting rod away from the brush via a rotating shaft.

[0010] In some embodiments, a crank is rotatably mounted on the mounting bracket, and the crank is rotatably connected to the end of the connecting rod away from the brush via a rotating shaft.

[0011] This utility model has at least the following beneficial effects: 1. By directly integrating the screen frame and mounting frame between the housing and base of the shot blasting machine, an integrated bottom screening structure is formed. The inlet of the housing can directly connect to the outlet of the steel shot mixture after the shot blasting machine body has completed its work. This establishes a continuous and closed material flow channel between the shot blasting machine body and the dust removal screening system. This eliminates the complex transmission components such as bucket elevators and screw conveyors used for material conveying in traditional shot blasting machines, simplifying the overall structure. By adopting a double-layer inclined screen design, the steel shot mixture from the shot blasting machine body directly enters the housing. It first undergoes coarse screening on the upper screen frame to separate large impurities and some steel shot, and then falls onto the screen belt on the lower mounting frame for fine screening, effectively removing dust and fine impurities. During the screening process, the cam drives the slider to slide along the first slide rod, which, together with the first spring, causes the screen frame and mounting frame to vibrate continuously. This achieves simultaneous screening and automatic feeding while effectively preventing screen hole clogging.

[0012] 2. Two sets of winding rods, synchronous belts, and synchronous pulleys allow the lower screen belt to be replaced within the mounting frame via the winding rods, removing clogged sections from the working area and extending its service life. The roller brushes on both sides clean the surface of the screen belt as it moves; the sweeping brushes, through the reciprocating motion of the crank and the second spring mechanism, automatically remove dust from the roller brushes, forming a cycle of cleaning for both the screen belt and the cleaning tools themselves, reducing the frequency of manual cleaning and maintaining stable screening results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the structural separation of the housing and the base of this utility model; Figure 3 This is a schematic diagram showing the structural separation of the mounting bracket and the base of this utility model; Figure 4 This utility model Figure 4 Enlarged view of the structure at point A; Figure 5 This is a schematic diagram of the mounting frame and screen belt of this utility model; Figure 6 This utility model Figure 5 Enlarged view of the structure at point -B.

[0014] In the diagram: 1. Box body; 2. Base; 3. Screen frame; 4. Mounting frame; 5. Slider; 6. First slide rod; 7. First spring; 8. Cam; 9. Winding rod; 10. Synchronous pulley; 11. Synchronous belt; 12. Screen belt; 13. Roller brush; 14. Sweeping brush; 15. Second slide rod; 16. Second spring; 17. Connecting rod; 18. Crank. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please refer to Figure 1-6This utility model provides a technical solution: a self-dust-removing shot blasting machine, including a housing 1 and a base 2. The housing 1 is fixedly installed on the base 2. A screen frame 3 is provided between the housing 1 and the base 2. A mounting frame 4 is provided between the housing 1 and the base 2. The screen frame 3 is located above the mounting frame 4. Both the screen frame 3 and the mounting frame 4 are slidably connected to the base 2 via sliders 5. A screen belt 12 is provided on the mounting frame 4. Both the mounting frame 4 and the screen frame 3 are at a certain inclination angle. A first sliding rod 6 corresponding to the slider 5 is fixedly installed inside the base 2. The slider 5 is slidably sleeved with the corresponding first sliding rod 6. Two sets of symmetrically distributed first springs 7 are fitted on the first sliding rod 6. The two ends of the two sets of first springs 7 are fixedly connected to the slider 5 and the base 2, respectively. Cams 8 corresponding to the slider 5 are rotatably installed inside the base 2. The cams 8 are fitted with the corresponding sliders 5. The motor drives the cam 8 mechanism to rotate continuously. Through direct contact with the slider 5, it pushes the entire screen frame 3 and mounting frame 4 to reciprocate along the direction of the first slide rod 6. During this process, two sets of first springs 7 provide the restoring force for the reciprocating motion, ensuring that the slider 5 and cam 8 always remain in contact. This continuous mechanical vibration is transmitted to the screen frame 3 and mounting frame 4, keeping the material falling on them in motion. The mixture first undergoes preliminary screening by the upper screen frame 3, and larger impurities are separated. The remaining material then falls into the screen belt 12 on the lower mounting frame 4 for secondary screening. Throughout the screening process, the continuous vibration effectively prevents the material from clogging the screen holes. At the same time, with the help of the tilt angle set by the mounting frame 4 and screen frame 3, the clean steel shot that has been screened can automatically move to the collection area, completing the automatic conveying and grading of the material.

[0017] Example 2: Please refer to Figure 5 , Figure 6Two sets of symmetrically distributed winding rods 9 are rotatably mounted inside the mounting frame 4. The screen belt 12 is slidably connected to the mounting frame 4, and both ends of the screen belt 12 are wound around the two sets of winding rods 9. Synchronous pulleys 10 are sleeved on both sets of winding rods 9. A synchronous belt 11 is provided inside the mounting frame 4, and the synchronous belt 11 is correspondingly set to the two sets of synchronous pulleys 10. The synchronous belt 11 is connected to the two sets of synchronous pulleys 10 for transmission. As a key component directly involved in the screening operation, the screen belt 12 may experience reduced screening efficiency due to dust clogging or mechanical wear in some sections during long-term use. This design addresses this issue by setting two sets of winding rods 9 to... The screen belt 12 is designed with replaceable screen segments. When the screening performance of a specific screen segment declines, the synchronous belt 11 can be driven by the drive system. The synchronous belt 11 then drives two sets of synchronous pulleys 10 to rotate synchronously, which in turn drives two sets of winding rods 9 to perform coordinated winding and unwinding movements. During this process, the screen area that has been blocked or worn is wound onto one side of the winding rod 9, while a new screen area of ​​the same length is unwound from the other winding rod 9. This allows for quick replacement of the working area without stopping the machine, ensuring the continuity and stability of the screening operation, and significantly extending the service life of the screen belt 12.

[0018] Two sets of symmetrically distributed roller brushes 13 are rotatably mounted on both sides of the mounting frame 4. The roller brushes 13 are respectively fitted to the two sides of the screen belt 12. A sweeping brush 14 fitted to the roller brushes 13 is slidably mounted on the mounting frame 4. A second sliding rod 15 corresponding to the sweeping brush 14 is fixedly mounted on the mounting frame 4. The sweeping brush 14 and the corresponding second sliding rod 15 are slidably sleeved. Two sets of symmetrically distributed second springs 16 are sleeved on the second sliding rod 15. The two ends of the two sets of second springs 16 are fixedly connected to the sweeping brush 14 and the mounting frame 4, respectively. A connecting rod 17 is rotatably mounted on the sweeping brush 14. A crank 18 is rotatably mounted on the mounting frame 4. The crank 18 is rotatably connected to the end of the connecting rod 17 away from the sweeping brush 14 through a rotating shaft. The roller brushes 13 on both sides of the mounting frame 4 are connected by... The brush 14 is passively rotated in contact with the surface of the moving screen belt 12, continuously brushing away dust and fine impurities adhering to the surface of the screen belt 12. Meanwhile, the motor on the mounting frame 4 drives the crank 18 to rotate, and the rotational motion of the crank 18 is converted into linear reciprocating motion of the brush 14 along the direction of the second slide rod 15 through the connecting rod 17. The second spring 16 group provides the necessary restoring force for the brush 14, maintaining its stable contact pressure with the roller brush 13. The brush 14 can continuously clean the surface of the rotating roller brush 13, effectively removing the dust accumulated on the roller brush 13, forming a complete self-cleaning cycle system. This avoids the cleaning effect being affected by dust accumulation on the surface of the roller brush 13, ensuring the continuous effectiveness of the screen belt 12 cleaning work.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-dust-removing shot blasting machine, comprising a housing (1) and a base (2), characterized in that: The box (1) is fixedly installed on the base (2). A screen frame (3) is provided between the box (1) and the base (2). A mounting frame (4) is provided between the box (1) and the base (2). The screen frame (3) is located above the mounting frame (4). The screen frame (3) and the mounting frame (4) are slidably connected to the base (2) through a slider (5). A screen belt (12) is provided on the mounting frame (4). The mounting frame (4) and the screen frame (3) are both at a certain angle. A first sliding rod (6) corresponding to the slider (5) is fixedly installed inside the base (2).

2. The self-dust-removing shot blasting machine according to claim 1, characterized in that: The slider (5) is slidably sleeved with the corresponding first slide rod (6). Two sets of symmetrically distributed first springs (7) are fitted on the first slide rod (6). The two ends of the two sets of first springs (7) are fixedly connected to the slider (5) and the base (2) respectively. A cam (8) corresponding to the slider (5) is rotatably installed in the base (2). The cam (8) is fitted with the corresponding slider (5).

3. The self-dust-removing shot blasting machine according to claim 1, characterized in that: Two sets of symmetrically distributed winding rods (9) are rotatably installed inside the mounting frame (4). The screen belt (12) is slidably connected to the mounting frame (4). The two ends of the screen belt (12) are respectively wound around the two sets of winding rods (9). Synchronous pulleys (10) are sleeved on both sets of winding rods (9).

4. The self-dust-removing shot blasting machine according to claim 1, characterized in that: The mounting bracket (4) is provided with a synchronous belt (11), which is respectively set with two sets of synchronous pulleys (10) and is connected to the two sets of synchronous pulleys (10) for transmission.

5. The self-dust-removing shot blasting machine according to claim 1, characterized in that: Two sets of symmetrically distributed roller brushes (13) are rotatably mounted on both sides of the mounting frame (4). The roller brushes (13) are respectively attached to the two sides of the screen belt (12). A sweeping brush (14) that is attached to the roller brushes (13) is slidably mounted on the mounting frame (4). A second sliding rod (15) that corresponds to the sweeping brush (14) is fixedly mounted on the mounting frame (4).

6. The self-dust-removing shot blasting machine according to claim 5, characterized in that: The brush (14) is slidably sleeved with the corresponding second slide rod (15). Two sets of symmetrically distributed second springs (16) are sleeved on the second slide rod (15). The two ends of the two sets of second springs (16) are fixedly connected to the brush (14) and the mounting bracket (4) respectively. A connecting rod (17) is rotatably installed on the brush (14).

7. The self-dust-removing shot blasting machine according to claim 1, characterized in that: A crank (18) is rotatably mounted on the mounting bracket (4), and the crank (18) is rotatably connected to the end of the connecting rod (17) away from the brush (14) via a rotating shaft.

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