Lifting hook type shot blasting machine adopting pulse back flushing type dust removal

Abstract

The utility model discloses a lifting hook type shot blasting machine adopting pulse back flushing type dust removal, and relates to the technical field of lifting hook type shot blasting machines. Comprising a shot blasting machine main body, when an object to be machined is mounted, a push block is compressed in a supporting block along a compression spring, so that a stop lever contracts and slides in the supporting block, and then the object to be machined is hung in a lifting hook, so that the object hung in the lifting hook is subjected to anti-falling treatment; an object cannot fall off from the lifting hook, the safety and stability in the machining process are guaranteed, then the object is impacted by steel grit, the lifting hook can rotate on the connecting rod, meanwhile, the first driving shaft drives the lifting hook on the connecting rod to rotate in the shot blasting machine for use, the processing capacity of the shot blasting machine is fully utilized, the utilization rate of equipment is increased, and the machining efficiency is improved. And the object is ensured to be uniformly impacted by the steel grit in the shot blasting machine, so that the surface of the object is comprehensively cleaned.

Description

Technical Field

[0001] This utility model relates to the technical field of hook-type shot blasting machines, specifically a hook-type shot blasting machine that uses pulse back-blowing dust removal. Background Technology

[0002] A shot blasting machine is a casting equipment that uses high-speed shot projectiles to clean or strengthen the surface of castings. Shot blasting machines can simultaneously remove sand, cores, and clean castings. In some regions, they are also colloquially referred to as sandblasting machines or blasting machines.

[0003] Reference patent (Publication No.: CN221455609U; Publication Date: 2024-08-02) discloses a high-efficiency shot blasting machine, relating to the field of shot blasting machine technology. It includes a device housing, with a circular support column fixedly connected to the outer wall of the housing. A connecting block is fixedly connected to the outer wall of the circular support column, and a first motor is fixedly connected to the outer wall of the connecting block. The output shaft of the first motor is fixedly connected to an extended lead screw via a coupling. By employing the coordinated use of the device housing, circular support column, connecting block, first motor, extended lead screw, movable block, connecting protrusion, connecting guide plate, limiting block, and support rod, this high-efficiency shot blasting machine facilitates material discharge, making discharge simple and convenient, saving labor costs, and enhancing practicality. When the user starts the first motor, it drives the extended lead screw, which in turn drives the connecting protrusion on the outer wall of the movable block to move forward along the connecting guide plate, thereby achieving the effect of easy material discharge. It is practical and efficient, improving the effectiveness of the device to a certain extent.

[0004] Based on the aforementioned patents, existing shot blasting machines have limitations in that the suspended objects inside are not easily rotated, making it difficult to ensure that all surfaces are evenly impacted by steel shot. Some parts of the workpiece may not be fully covered by shot blasting, resulting in unsatisfactory cleaning effects and affecting the quality and effectiveness of shot blasting. Furthermore, while traditional hook-type shot blasting machines can suspend objects, they often lack reliable anti-fall-off mechanisms during installation, causing objects to fall off due to vibration during shot blasting. This not only affects the cleaning effect but may also damage the equipment. Additionally, steel shot continuously wears down and generates impurities during shot blasting. Shot blasting machines often lack effective separation mechanisms for steel shot recovery, resulting in a large amount of impurities mixed in the steel shot, reducing the reuse efficiency of the steel shot. Therefore, this utility model provides a hook-type shot blasting machine that uses pulse backflushing dust removal. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hook-type shot blasting machine employing pulse backflushing dust removal. This solves the problems of existing shot blasting machines where suspended objects are difficult to rotate, making it impossible to ensure uniform impact of steel shot on all surfaces. Some parts of the workpiece may not be fully covered by shot, resulting in unsatisfactory cleaning effects and affecting the quality and effectiveness of shot blasting. Furthermore, while traditional hook-type shot blasting machines can suspend objects, they often lack reliable anti-fall-off mechanisms, causing objects to potentially fall off due to vibration during shot blasting. This not only affects the cleaning effect but may also damage the equipment. Additionally, steel shot continuously wears down and generates impurities during shot blasting, and shot blasting machines often lack effective separation mechanisms for steel shot recovery, resulting in a large amount of impurities mixed in the steel shot and reducing its reuse efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hook-type shot blasting machine employing pulse backflushing dust removal, comprising a shot blasting machine body, wherein the shot blasting machine body is provided with a processing mechanism for shot blasting objects, the processing mechanism comprising:

[0007] The rotating assembly includes a support plate connected to the upper end of the shot blasting machine body via a telescopic assembly. A first drive shaft is rotatably connected through the inside of the support plate. A connecting rod is fixedly connected to the outer wall of the first drive shaft. A hook is rotatably connected to the connecting rod. A stop bar connected to the upper end of the hook via an elastic assembly is provided.

[0008] The collection component includes a connecting shaft rotatably connected to the inner wall of the shot blasting machine body, a support frame movably connected to the outer wall of the connecting shaft, a filter bracket connected by a shock-absorbing component slidably disposed on the inner wall of the support frame, and a shaking component for swaying disposed at the upper end of the support frame.

[0009] The dust collection components include a dust collection component installed on the upper part of the shot blasting machine body for collecting shot blasting dust.

[0010] Preferably, the telescopic component includes a hydraulic rod that is fixedly connected through the inside of the side wall of the shot blasting machine body, the support plate is fixedly connected to the telescopic end of the hydraulic rod, and a slide rail bracket is fixedly connected to the top inside of the shot blasting machine body, and the support plate and the slide rail bracket are slidably connected.

[0011] Preferably, a guide rod is fixedly connected to the front end of the support plate, and a limit plate is fixedly connected to one end of the guide rod.

[0012] Preferably, the elastic component includes a support block fixedly connected to the upper end of the hook, a compression spring fixedly connected to the inner wall of the support block, a push block fixedly connected to one end of the compression spring, a stop rod fixedly connected to the side wall of the push block, and a slot provided on the inner wall of the hook, with the stop rod and the slot being engaged.

[0013] Preferably, the shock absorption assembly includes a fixed block fixedly connected to the inner wall of the support frame, a shock absorption spring fixedly connected to the upper end face of the fixed block, a damping support rod provided inside the shock absorption spring, and the lower end of the damping support rod being fixedly connected to the fixed block, and the filter bracket being fixedly connected to the upper end of the shock absorption spring.

[0014] Preferably, the vibration component includes a push plate fixedly connected to the lower end of the support frame, and a second drive shaft is rotatably connected through the side wall of the shot blasting machine body. The output end of the second drive shaft is provided with a cam on the lower end face of the push plate.

[0015] Preferably, a shot blasting device body for spraying steel shot is provided on one side wall of the shot blasting machine body, a dust collection shell is slidably connected to the bottom of the support frame and the shot blasting machine body, a steel shot collection shell is slidably connected to the bottommost side of the shot blasting machine body, and a cabinet door for opening is provided on the left side wall of the shot blasting machine body.

[0016] Preferably, the dust collection assembly includes a dust collection pipe provided at the upper end of the shot blasting machine body for dust collection. One end of the dust collection pipe is connected to a conduit, and the lower end of the conduit is provided with a collection port. The outer wall of the collection port is wrapped with a cloth bag filter cartridge by a strap, and the side wall of the collection port is provided with an electromagnetic pulse valve for compressed air to blow it up.

[0017] Beneficial effects

[0018] This invention provides a hook-type shot blasting machine employing pulse-jet dust removal. Compared with existing technologies, it has the following advantages:

[0019] Firstly, when installing workpieces, this utility model compresses the push block along the compression spring inside the support block, causing the stop rod to retract and slide inside the support block. The workpiece to be processed is then suspended inside the hook. The push block is released, allowing the stop rod to engage with the slot, thus preventing the workpiece from falling off the hook and ensuring the safety and stability of the processing. Then, when the workpiece is impacted by steel shot, the hook can rotate on the connecting rod. Simultaneously, the first drive shaft drives the hook on the connecting rod to rotate inside the shot blasting machine, fully utilizing the processing capacity of the shot blasting machine, improving equipment utilization, and ensuring that the workpiece is evenly impacted by steel shot inside the shot blasting machine, thereby achieving comprehensive cleaning of the workpiece surface.

[0020] Secondly, after the steel shot is used up, it falls onto the filter bracket on the support frame. The filter bracket, through shock-absorbing springs and damping rods, provides shock absorption and buffering between the fixed block and the support frame, reducing vibration and impact on the equipment. This protects the stability and durability of the equipment, reduces noise and vibration, improves the working environment, and enhances operator comfort and work efficiency. Then, the support frame vibrates against the inner wall of the shot blasting machine body via the connecting shaft, causing the impurities that fell onto the filter bracket to fall onto the dust collection shell, while the steel shot slides into the steel shot collection shell. The steel shot after impurity separation can then be reused directly. Through an effective separation and recycling mechanism, the steel shot can be quickly reused, improving the working efficiency of the shot blasting machine. Attached Figure Description

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a cross-sectional view of the main body of the shot blasting machine of this utility model;

[0023] Figure 3 This is a schematic diagram of the main structure of the connecting rod of this utility model;

[0024] Figure 4 This is a schematic diagram of the bottom connection structure of the filter support of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure of the filter bag of this utility model;

[0026] Figure 6 This is an enlarged structural diagram of point A of this utility model.

[0027] In the diagram: 1. Shot blasting machine body; 2. Slide rail bracket; 201. Support plate; 202. First drive shaft; 203. Connecting rod; 204. Hook; 3. Slot; 301. Support block; 302. Compression spring; 303. Push block; 304. Stop bar; 4. Dust suction pipe; 401. Conduit; 402. Collection port; 403. Bag filter cartridge; 404. Electromagnetic pulse valve; 5. Hydraulic rod; 501. Guide rod; 502. Limiting plate; 6. Connecting shaft; 601. Support frame; 602. Filter bracket; 7. Second drive shaft; 701. Cam; 702. Push plate; 8. Fixing block; 801. Shock-absorbing spring; 802. Damping support rod; 9. Dust collection shell; 10. Steel shot collection shell; 11. Cabinet door. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-6 This utility model provides a technical solution: a hook-type shot blasting machine using pulse backflushing dust removal, comprising a shot blasting machine body 1, on which a processing mechanism for shot blasting objects is provided, the processing mechanism including:

[0030] The rotating assembly includes a support plate 201 connected to the upper end of the shot blasting machine body 1 via a telescopic assembly. A first drive shaft 202 is rotatably connected through the inside of the support plate 201. A connecting rod 203 is fixedly connected to the outer wall of the first drive shaft 202. A hook 204 is uniformly rotatably connected to the connecting rod 203. A stop bar 304 is connected to the upper end of the hook 204 via an elastic assembly.

[0031] The collection component includes a connecting shaft 6 rotatably connected to the inner wall of the shot blasting machine body 1, a support frame 601 movably connected to the outer wall of the connecting shaft 6, a filter bracket 602 slidably provided on the inner wall of the support frame 601 and connected by a shock-absorbing component, and a shaking component for swaying is provided at the upper end of the support frame 601.

[0032] The dust removal component includes a dust collection component for collecting shot blasting dust, which is provided on the upper part of the shot blasting machine body 1.

[0033] In a preferred embodiment, the telescopic assembly includes a hydraulic rod 5 that is fixedly connected through the inside of the side wall of the shot blasting machine body 1. A support plate 201 is fixedly connected to the telescopic end of the hydraulic rod 5. A slide rail bracket 2 is fixedly connected to the top of the inside of the shot blasting machine body 1, and the support plate 201 and the slide rail bracket 2 are slidably connected. The support plate 201 slides on the slide rail bracket 2 via the hydraulic rod 5, moving the first drive shaft 202 on the support plate 201, as well as the connecting rod 203 and hook 204 fixed to the outer wall of the first drive shaft 202, out of the outside of the shot blasting machine body 1 for hanging and placing objects. Then, it retracts into the equipment, allowing workers to load materials more easily, improving overall work efficiency, and making it easier to maintain and service the hanging system and the inside of the shot blasting machine.

[0034] In a preferred embodiment, a guide rod 501 is fixedly connected to the front end of the support plate 201, and a limiting plate 502 is fixedly connected to one end of the guide rod 501. The limiting plate 502 is fixedly connected to the front end of the support plate 201 through the guide rod 501 and is fixedly connected to the inner wall of the slide rail bracket 2, limiting the position of the support plate 201 sliding out. When the support plate 201 retracts into the interior of the shot blasting machine body 1, the limiting plate 502 is close to the upper opening of the shot blasting machine body 1, which is used to block the dust and steel shot generated during internal operation and prevent leakage.

[0035] In a preferred embodiment, the elastic component includes a support block 301 fixedly connected to the upper end of the hook 204. A compression spring 302 is fixedly connected to the inner wall of the support block 301. A push block 303 is fixedly connected to one end of the compression spring 302. A stop rod 304 is fixedly connected to the side wall of the push block 303. A slot 3 is provided on the inner wall of the hook 204, and the stop rod 304 is engaged with the slot 3. When installing the workpiece, the push block 303 is compressed along the compression spring 302 inside the support block 301, causing the stop rod 304 to retract and slide inside the support block 301. Then, the workpiece to be processed is suspended from the hook 204. Inside the 04, the push block 303 is released, allowing the stop rod 304 to engage with the slot 3, thus preventing the object suspended inside the hook 204 from falling off. This ensures that the object will not fall off the hook, guaranteeing the safety and stability of the processing. Then, the object is impacted by steel shot, and the hook 204 can rotate on the connecting rod 203. At the same time, the first drive shaft 202 drives the hook 204 on the connecting rod 203 to rotate inside the shot blasting machine, making full use of the shot blasting machine's processing capacity, improving equipment utilization, and ensuring that the object is evenly impacted by steel shot inside the shot blasting machine, thereby achieving comprehensive cleaning of the object's surface.

[0036] In a preferred embodiment, the shock absorption assembly includes a fixed block 8 fixedly connected to the inner wall of the support frame 601. A shock absorption spring 801 is fixedly connected to the upper end of the fixed block 8. A damping support rod 802 is provided inside the shock absorption spring 801, and the lower end of the damping support rod 802 is fixedly connected to the fixed block 8. The filter bracket 602 is fixedly connected to the upper end of the shock absorption spring 801. After the steel shot is used up, it falls onto the filter bracket 602 on the support frame 601. Then, the filter bracket 602 provides a certain shock absorption and buffering effect on the fixed block 8 and the support frame 601 through the shock absorption spring 801 and the damping support rod 802, thereby reducing the vibration and impact on the equipment, protecting the stability and durability of the equipment, reducing noise and vibration, improving the working environment, and enhancing the comfort and work efficiency of the operators.

[0037] In a preferred embodiment, the vibration assembly includes a push plate 702 fixedly connected to the lower end of the support frame 601. A second drive shaft 7 is rotatably connected through the side wall of the shot blasting machine body 1. A cam 701 is provided at the output end of the second drive shaft 7 on the lower end face of the push plate 702. A shot blasting body 12 for steel shot blasting is provided on one side wall of the shot blasting machine body 1. During operation, the shot flows into the shot blasting device through the shot inlet pipe and is ejected by high-speed rotating blades. A dust collection shell 9 is slidably connected to the lower part of the support frame 601 and the shot blasting machine body 1. A steel shot collection shell is slidably connected to the lowest side of the shot blasting machine body 1. 10. A cabinet door 11 for opening is provided on the left side wall of the shot blasting machine body 1. At the same time, the cam 701 rotates through the second drive shaft 7 to push and shake the push plate 702 at the lower end of the support frame 601. This causes the support frame 601 to shake on the inner wall of the shot blasting machine body 1 through the connecting shaft 6. This causes impurities that fall on the filter bracket 602 to fall onto the dust collection shell 9, while the steel shot slides into the steel shot collection shell 10. The steel shot after the impurities are separated can then be reused directly. Through an effective separation and recycling mechanism, the steel shot can be quickly reused, improving the working efficiency of the shot blasting machine.

[0038] In a preferred embodiment, the dust collection assembly includes a dust collection pipe 4 located at the upper end of the shot blasting machine body 1. One end of the dust collection pipe 4 is connected to a conduit 401, and the lower end of the conduit 401 is provided with a collection port 402. A cloth bag filter cartridge 403 is wrapped around the outer wall of the collection port 402 by a strap. An electromagnetic pulse valve 404 for compressed air to blow up is provided on the side wall of the collection port 402. Specifically, during the operation of the shot blasting machine body 1, the dust collection pipe 4 is responsible for collecting the generated dust and impurities. The dust collection pipe 4 and its connected conduit 401 and collection port 402 are responsible for removing the dust generated during the shot blasting process. Dust and exhaust gas are drawn in, and the bag filter cartridge 403 acts as a filtration device. It is wrapped around the outer wall of the collection port 402 with straps to filter the inhaled dust and exhaust gas. When the dust accumulation on the surface of the bag filter cartridge 403 reaches a certain thickness, the electromagnetic pulse valve 404 is activated, and compressed air is used to perform pulse backflushing to shake off the dust on the filter cartridge. It has strong dust removal ability and high dust removal efficiency, effectively reducing the harm of dust and exhaust gas generated during shot blasting to the environment and workers' health. The pulse backflushing dust collector can regularly clean the dust on the bag filter cartridge, avoid filter cartridge clogging and excessive wear, thereby extending the service life of the equipment.

[0039] The shot blasting machine body 12 and the electromagnetic pulse valve 404 mentioned above are both existing technologies and will not be elaborated further.

[0040] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0041] During operation, firstly, the support plate 201 slides on the slide rail bracket 2 via the hydraulic rod 5, moving the first drive shaft 202 on the support plate 201, along with the connecting rod 203 and hook 204 fixed to the outer wall of the first drive shaft 202, out of the shot blasting machine body 1 for hanging and placing objects. Then, it retracts into the equipment. When installing objects, the push block 303 is compressed along the compression spring 302 inside the support block 301, causing the stop rod 304 to retract and slide inside the support block 301. The object to be processed is suspended inside the hook 204. The push block 303 is released, so that the stop bar 304 is engaged with the slot 3, thereby preventing the object suspended inside the hook 204 from falling off, ensuring that the object will not fall off the hook, and ensuring the safety and stability of the processing process. Then, the object is impacted by steel shot, and the hook 204 can rotate on the connecting rod 203. At the same time, the first drive shaft 202 drives the hook 204 on the connecting rod 203 to rotate inside the shot blasting machine, making full use of the processing capacity of the shot blasting machine.

[0042] Then, during the steel shot processing, after the steel shot is used up, it falls onto the filter bracket 602 on the support frame 601. The filter bracket 602, through the shock-absorbing spring 801 and the damping rod 802, provides a certain shock absorption and buffering effect on the fixed block 8 and the support frame 601, reducing the vibration and impact on the equipment. At the same time, the cam 701 rotates through the second drive shaft 7, pushing and shaking the push plate 702 at the lower end of the support frame 601, causing the support frame 601 to shake on the inner wall of the shot blasting machine body 1 through the connecting shaft 6. This causes the impurities that fall onto the filter bracket 602 to fall onto the dust collection shell 9, while the steel shot slides into the steel shot collection shell 10. The steel shot after the impurities are separated can then be reused directly.

[0043] Finally, during the operation of the shot blasting machine body 1, the dust suction pipe 4 is responsible for collecting the generated dust and impurities. The dust suction pipe 4 and its connected conduit 401 and collection port 402 are responsible for sucking in the dust and exhaust gas generated during the shot blasting process. The bag filter cartridge 403, as a filtration device, is wrapped around the outer wall of the collection port 402 with straps to filter the sucked-in dust and exhaust gas. When the dust accumulation on the surface of the bag filter cartridge 403 reaches a certain thickness, the electromagnetic pulse valve 404 is activated, and compressed air is used for pulse backflushing to shake off the dust on the filter cartridge. It has strong dust removal ability and high dust removal efficiency, effectively reducing the harm of dust and exhaust gas generated during the shot blasting process to the environment and workers' health. The pulse backflushing dust collector can regularly clean the dust on the bag filter cartridge, avoid filter cartridge blockage and excessive wear, thereby extending the service life of the equipment.

[0044] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0045] 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 hook-type shot blasting machine employing pulse-jet dust removal, comprising a shot blasting machine body (1), characterized in that: The shot blasting machine body (1) is provided with a processing mechanism for shot blasting objects, the processing mechanism including: The rotating assembly includes a support plate (201) connected to the upper end of the shot blasting machine body (1) via a telescopic assembly. A first drive shaft (202) is rotatably connected through the inside of the support plate (201). A connecting rod (203) is fixedly connected to the outer wall of the first drive shaft (202). A hook (204) is rotatably connected to the connecting rod (203). A stop bar (304) is connected to the upper end of the hook (204) via an elastic assembly. The collection component includes a connecting shaft (6) rotatably connected to the inner wall of the shot blasting machine body (1), a support frame (601) movably connected to the outer wall of the connecting shaft (6), a filter bracket (602) slidably provided on the inner wall of the support frame (601) and connected by a shock-absorbing component, and a shaking component for swaying is provided at the upper end of the support frame (601). The dust removal component includes a dust collection component for collecting shot blasting dust on the upper end of the shot blasting machine body (1).

2. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: The telescopic assembly includes a hydraulic rod (5) that is fixedly connected through the inside of the side wall of the shot blasting machine body (1). The support plate (201) is fixedly connected to the telescopic end of the hydraulic rod (5). A slide rail bracket (2) is fixedly connected to the top inside the shot blasting machine body (1), and the support plate (201) and the slide rail bracket (2) are slidably connected.

3. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: A guide rod (501) is fixedly connected to the front end of the support plate (201), and a limit plate (502) is fixedly connected to one end of the guide rod (501).

4. A hook-type shot blasting machine using pulse backflushing dust removal as described in claim 1, characterized in that: The elastic component includes a support block (301) fixedly connected to the upper end of the hook (204), a compression spring (302) fixedly connected to the inner wall of the support block (301), a push block (303) fixedly connected to one end of the compression spring (302), a stop bar (304) fixedly connected to the side wall of the push block (303), and a slot (3) provided on the inner wall of the hook (204), and the stop bar (304) and the slot (3) are engaged.

5. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: The shock absorption assembly includes a fixed block (8) fixedly connected to the inner wall of the support frame (601), a shock absorption spring (801) fixedly connected to the upper end of the fixed block (8), a damping support rod (802) is provided inside the shock absorption spring (801), and the lower end of the damping support rod (802) is fixedly connected to the fixed block (8), and the filter bracket (602) is fixedly connected to the upper end of the shock absorption spring (801).

6. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: The vibration component includes a push plate (702) fixedly connected to the lower end of the support frame (601), and a second drive shaft (7) is rotatably connected through the side wall of the shot blasting machine body (1). The output end of the second drive shaft (7) is provided with a cam (701) on the lower end face of the push plate (702).

7. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: The dust collection assembly includes a dust collection pipe (4) for dust collection provided at the upper end of the shot blasting machine body (1). One end of the dust collection pipe (4) is connected to a conduit (401). The lower end of the conduit (401) is provided with a collection port (402). The outer wall of the collection port (402) is wrapped with a cloth bag filter cartridge (403) by a strap. The side wall of the collection port (402) is provided with an electromagnetic pulse valve (404) for compressed air to blow up.

8. A hook-type shot blasting machine with pulse back-blowing dust removal as described in claim 1, characterized in that: The shot blasting machine body (1) has a shot blasting device body (12) for spraying steel shot on one side wall. The support frame (601) is slidably connected to the shot blasting machine body (1) below. The shot blasting machine body (1) is slidably connected to a steel shot collection shell (10) on the lowest side. The shot blasting machine body (1) has a cabinet door (11) for opening on the left side wall.

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