Roller roughening shot blasting machine

Abstract

The utility model relates to mechanical processing technical field, the utility model provides a kind of roll roughening shot blasting machine, it includes shot blasting machine, the top of the shot blasting machine is provided with feeding device, the top of the shot blasting machine is provided with bucket elevator, the top of the shot blasting machine is provided with dust filtering device.The side of dust collection box is provided with pneumatic back ash cleaning device, the pneumatic back ash cleaning device includes hydraulic cylinder, the telescopic end of the hydraulic cylinder is fixedly connected with piston, the side of sealing plate is penetrated and fixedly connected with gas pipe, the circumference of the gas pipe is fixedly connected with gas nozzle, the circumference of the gas pipe is fixedly connected with check valve one.Through the above technical scheme, the technical problem of dust in the prior art shot blasting machine is solved when using, low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically to a roll texturing shot blasting machine. Background Technology

[0002] In the manufacturing process of rolling mill rolls, roughening treatment is often required to improve the surface roughness and adhesion of the rolls. Shot blasting machines are a common type of roughening equipment. They achieve the roughening effect by impacting the surface of the rolls with high-speed steel shot. However, in the operation of traditional shot blasting machines, dust easily clogs the dust collection box, leading to a decline in equipment performance and an increase in maintenance costs.

[0003] According to a public announcement (publication number: CN223114946U), a roll texturing shot blasting machine includes a roll transport structure, a shot blasting structure at the top of the roll transport structure, and a recovery structure on the shot blasting structure. The shot blasting structure includes a shot blasting hopper with two symmetrical shot blasting ports at the bottom. Each shot blasting port has a shot blasting rotating plate installed inside via a rotating shaft. The recovery structure includes a recovery bin with a transport pipe inserted at the bottom. An air pump is inserted at the other end of the transport pipe and is fixedly installed in the shot blasting hopper. A recovery pipe is also inserted at the other end of the air pump. This design solves the problem in existing equipment where, during roll texturing, the shot blasting material continuously impacts the outer surface of the roll, causing it to scatter due to the impact reaction force, requiring manual collection and reducing collection efficiency.

[0004] In the aforementioned application, dust from the recovery bin is drawn into a transport pipe by an air pump and then reintroduced into the shot blasting material box through the recovery pipe, thus achieving dust recycling. However, after prolonged use, this equipment may still face the problem of dust clogging the recovery bin, affecting the continuous and stable operation of the equipment. Therefore, we propose a roll texturing shot blasting machine. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a roll texturing shot blasting machine, which solves the technical problems of excessive dust and low efficiency in existing shot blasting machines.

[0006] According to one aspect, at least one embodiment of the present invention provides a roll texturing shot blasting machine, comprising: a shot blasting machine, a feeding device provided on the top of the shot blasting machine, a bucket elevator provided on the top of the shot blasting machine, and a dust filtering device provided on the top of the shot blasting machine.

[0007] The dust filtration device includes an exhaust pipe, which is connected through and fixedly to the top of the shot blasting machine. A dust collection box is fixedly connected to the end of the exhaust pipe away from the shot blasting machine. A base plate is fixedly connected to the bottom of the dust collection box. An upper mounting plate is fixedly connected to the top of the dust collection box. A filter cotton core is provided at the bottom of the upper mounting plate. A sealing plate is fixedly connected to the top of the upper mounting plate. An air guide hood is fixedly connected to the top of the sealing plate. A connecting plate is fixedly connected to the inner wall of the air guide hood. A rotating sleeve is fixedly connected to the end of the connecting plate away from the air guide hood. A rotating shaft is rotatably connected to the inner wall of the rotating sleeve. A fan blade is fixedly connected to one end of the rotating shaft. A driven bevel gear is fixedly connected to the end of the rotating shaft away from the fan blade. A mounting block is fixedly connected to the top of the sealing plate. A motor is fixedly connected to the top of the mounting block. A driving bevel gear is fixedly connected to the output shaft of the motor.

[0008] For example, in at least one embodiment of the present invention, a roll texturing shot blasting machine is provided, which further includes: a protective cover, wherein the protective cover is fixedly connected to the side of the motor, and a protective plate is fixedly connected to the inner wall of the air guide cover. The function of the protective cover is to protect the internal structure of the motor and the air guide cover and prevent dust and debris from entering and affecting the normal operation of the equipment.

[0009] The circumferential surface of the motor output shaft penetrates and is rotatably connected to the side of the protective cover, and the circumferential surface of the rotating shaft penetrates and is rotatably connected to the bottom of the protective cover. Its function is to ensure that the output shaft and rotating shaft of the motor can rotate smoothly inside the protective cover without being obstructed by the protective cover, thereby ensuring the normal operation of the dust filtration device.

[0010] The driving bevel gear and the driven bevel gear mesh with each other. The driving bevel gear has more teeth than the driven bevel gear. Its function is to enable the driving bevel gear and the driven bevel gear to mesh and drive each other, thereby realizing the motor to speed up the fan blades and thus improving the ventilation efficiency of the dust filter device.

[0011] The filter cotton core has several feeding devices arranged in a linear array along the bottom of the upper mounting plate. The number of connecting plates is also several. Their function is to increase the filtration area and filtration efficiency of the dust filtration device, so that more dust can be captured by the filter cotton core. The arrangement of multiple connecting plates can also better support the fan blades, improving the stability and service life of the fan blades.

[0012] According to another aspect, at least one embodiment of this utility model also provides a roll texturing shot blasting machine, including: a pneumatic back-cleaning device, wherein the pneumatic back-cleaning device is provided on the side of the dust collection box, the pneumatic back-cleaning device includes a hydraulic cylinder, the hydraulic cylinder is fixedly connected to the side of the dust collection box, a piston is fixedly connected to the telescopic end of the hydraulic cylinder, an air supply pipe is passed through and fixedly connected to the side of the sealing plate, an air nozzle is fixedly connected to the circumferential surface of the air supply pipe, a one-way valve is fixedly connected to the circumferential surface of the air supply pipe, an air inlet pipe is fixedly connected to the circumferential surface of the air supply pipe, a piston sleeve is fixedly connected to the end of the air supply pipe away from the sealing plate, and a one-way valve is provided on the circumferential surface of the air inlet pipe. The function of the valve is that when the piston moves away from the sealing plate during the telescopic movement of the hydraulic cylinder, the gas in the air supply pipe is compressed, causing the air nozzle to spray high-pressure gas to perform back-cleaning treatment on the filter cotton core, preventing dust from accumulating on the filter cotton core and ensuring the continuous and efficient operation of the dust filtration device.

[0013] For example, in at least one embodiment of the present invention, a roll texturing shot blasting machine is provided, which further includes: a discharge pipe, wherein the bottom of the dust collection box is fixedly connected to the discharge pipe, and the end of the discharge pipe away from the dust collection box is fixedly connected to a dust placement box. The function of the discharge pipe is to facilitate the discharge of dust collected in the dust collection box into the dust placement box through the discharge pipe for centralized storage and treatment, so as to avoid dust falling into the external environment and causing secondary pollution.

[0014] The circumferential surface of the piston is slidably connected to the inner wall of the piston sleeve. The jet nozzle is located above the filter cotton core. Its function is to ensure that the high-pressure gas ejected from the jet nozzle can directly act on the surface of the filter cotton core, effectively remove dust particles attached to the filter cotton core, and improve the efficiency and effect of the reverse cleaning process.

[0015] The jet nozzle is located below the air guide shroud, and the side section of the air delivery pipe is set to an L-shape. Its function is to ensure that the layout of the jet nozzle and the air delivery pipe is reasonable, to avoid interference with the air guide shroud, and to ensure that the jet nozzle can smoothly spray high-pressure gas onto the filter cotton core.

[0016] The number of air nozzles is set to several and symmetrically distributed along the vertical central axis of the dust collection box. The number of air supply pipes is set to two and symmetrically distributed along the vertical central axis of the dust collection box. Their function is to ensure that the air nozzles and air supply pipes can evenly cover the surface of the filter cotton core, thereby improving the uniformity and efficiency of the reverse cleaning process.

[0017] The beneficial effects of the embodiments of this utility model are as follows: 1. In this utility model, through the cooperation of components such as the exhaust connection pipe, dust collection box and base plate in the dust filtration device, the dust generated during the operation of the shot blasting machine is effectively collected and filtered, avoiding dust pollution to the environment. At the same time, it protects the working parts inside the shot blasting machine from dust corrosion and extends the service life of the equipment. By setting a motor to drive the fan blades to rotate, and cooperating with the speed-increasing transmission of the active bevel gear and the driven bevel gear, the exhaust efficiency of the dust filtration device is improved, further enhancing the performance and stability of the equipment.

[0018] 2. In this utility model, through the cooperation of components such as hydraulic cylinders, pistons, and air supply pipes in the pneumatic back-cleaning device, the filter cotton core is periodically back-cleaned, avoiding the problem of decreased filtration efficiency and clogging caused by long-term accumulation of dust on the filter cotton core. This ensures the continuous and efficient operation of the dust filtration device. By setting up a discharge pipe and a dust placement box, it is convenient to centrally store and process the dust collected in the dust collection box, avoiding secondary pollution caused by dust falling into the external environment, and improving the environmental performance and practicality of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional side view structural schematic diagram of the present invention; Figure 3 This is a three-dimensional partial structural schematic diagram of the present invention; Figure 4 This is a three-dimensional enlarged structural schematic diagram of the dust filtration device of this utility model; Figure 5 This is a three-dimensional enlarged structural schematic diagram of the pneumatic reverse cleaning device of this utility model.

[0021] In the diagram: 1. Shot blasting machine; 2. Feeding device; 3. Bucket elevator; 4. Dust filtration device; 401. Exhaust connection pipe; 402. Dust collection box; 403. Base plate; 404. Upper mounting plate; 405. Filter cotton core; 406. Sealing plate; 407. Air guide hood; 408. Connecting plate; 409. Rotating sleeve; 410. Rotating shaft; 411. Fan blade; 412. Driven bevel gear; 413. Mounting block; 414. Motor; 415. Driven bevel gear; 5. Protective cover; 6. Protective plate; 7. Pneumatic back-cleaning device; 701. Hydraulic cylinder; 702. Piston; 703. Air supply pipe; 704. Air nozzle; 705. One-way valve one; 706. Air inlet pipe; 707. Piston sleeve; 708. One-way valve two; 8. Lowering pipe; 9. Dust placement box. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0023] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figures 1-5 As shown, it illustrates a roll texturing shot blasting machine according to an embodiment of the present invention, including a shot blasting machine 1, a feeding device 2 provided on the top of the shot blasting machine 1, a bucket elevator 3 provided on the top of the shot blasting machine 1, and a dust filter device 4 provided on the top of the shot blasting machine 1.

[0029] The dust filtration device 4 includes an exhaust connection pipe 401, which is connected through and fixedly attached to the top of the shot blasting machine 1. A dust collection box 402 is fixedly connected to the end of the exhaust connection pipe 401 away from the shot blasting machine 1. A base plate 403 is fixedly connected to the bottom of the dust collection box 402. An upper mounting plate 404 is fixedly connected to the top of the dust collection box 402. A filter cotton core 405 is provided at the bottom of the upper mounting plate 404. A sealing plate 406 is fixedly connected to the top of the upper mounting plate 404. An air guide hood 407 is fixedly connected to the top of the sealing plate 406. A connecting plate 408 is fixedly connected to the inner wall of 7. A rotating sleeve 409 is fixedly connected to the end of the connecting plate 408 away from the air guide shroud 407. A rotating shaft 410 is rotatably connected to the inner wall of the rotating sleeve 409. A fan blade 411 is fixedly connected to one end of the rotating shaft 410. A driven bevel gear 412 is fixedly connected to the end of the rotating shaft 410 away from the fan blade 411. A mounting block 413 is fixedly connected to the top of the sealing plate 406. A motor 414 is fixedly connected to the top of the mounting block 413. A driving bevel gear 415 is fixedly connected to the output shaft of the motor 414.

[0030] In some examples, a protective cover 5 is fixedly connected to the side of the motor 414, and a protective plate 6 is fixedly connected to the inner wall of the air guide 407. The function of the protective cover 5 is to protect the internal structure of the motor 414 and the air guide 407, and to prevent dust and debris from entering and affecting the normal operation of the equipment.

[0031] The circumferential surface of the output shaft of motor 414 penetrates and is rotatably connected to the side of the protective cover 5, and the circumferential surface of the rotating shaft 410 penetrates and is rotatably connected to the bottom of the protective cover 5. The function is to ensure that the output shaft of motor 414 and the rotating shaft 410 can rotate smoothly inside the protective cover 5 without being obstructed by the protective cover 5, thereby ensuring the normal operation of the dust filter device 4.

[0032] The driving bevel gear 415 meshes with the driven bevel gear 412. The driving bevel gear 415 has more teeth than the driven bevel gear 412. Its function is to enable the driving bevel gear 415 and the driven bevel gear 412 to mesh and drive each other, thereby realizing the speed increase drive of the motor 414 to the fan blade 411, thus improving the ventilation efficiency of the dust filter device 4.

[0033] The filter cotton core 405 has several feeding devices, which are arranged in a linear array along the bottom of the upper mounting plate 404. There are also several connecting plates 408. Their function is to increase the filtration area and filtration efficiency of the dust filtration device 4, so that more dust can be captured by the filter cotton core 405. The arrangement of multiple connecting plates 408 can also better support the fan blade 411, improving the stability and service life of the fan blade 411.

[0034] For example, such as Figures 1-5 As shown, when the shot blasting machine 1 is working, it generates a large amount of dust and impurities. This dust and impurities are drawn into the dust collection box 402 through the exhaust connection pipe 401. Inside the dust collection box 402, the dust and impurities are effectively captured by the filter cotton core 405. Simultaneously, the motor 414 starts, and its output shaft drives the driving bevel gear 415 to rotate. The driving bevel gear 415 meshes with the driven bevel gear 412. Since the driving bevel gear 415 has more teeth than the driven bevel gear 412, it achieves the effect of increasing speed and reducing torque. The driven bevel gear 412 drives the rotating shaft 410 to rotate at high speed, which in turn drives the fan blades 411 to generate a strong airflow. The airflow generated by the fan blades 411 is guided by the air guide shroud 407, forming a strong airflow that draws air out of the dust collection box 402 and filters it through the filter cotton core 405. The filtered clean air is discharged, while the dust and impurities remain on the filter cotton core 405.

[0035] like Figures 1-5As shown, this invention illustrates a roll texturing shot blasting machine according to another embodiment of the present invention, including a pneumatic back-cleaning device 7. The pneumatic back-cleaning device 7 is installed on the side of the dust collection box 402. The pneumatic back-cleaning device 7 includes a hydraulic cylinder 701, which is fixedly connected to the side of the dust collection box 402. A piston 702 is fixedly connected to the telescopic end of the hydraulic cylinder 701. An air supply pipe 703 is passed through and fixedly connected to the side of the sealing plate 406. An air nozzle 704 is fixedly connected to the circumferential surface of the air supply pipe 703, and a one-way valve 704 is fixedly connected to the circumferential surface of the air supply pipe 703. 5. An air inlet pipe 706 is fixedly connected to the circumferential surface of the air supply pipe 703. A piston sleeve 707 is fixedly connected to the end of the air supply pipe 703 away from the sealing plate 406. A one-way valve 708 is provided on the circumferential surface of the air inlet pipe 706. Its function is to control the extension and retraction of the hydraulic cylinder 701. When the piston 702 moves away from the sealing plate 406, the gas in the air supply pipe 703 is compressed, causing the jet nozzle 704 to spray high-pressure gas to perform back-cleaning treatment on the filter cotton core 405, preventing dust from accumulating on the filter cotton core 405 and ensuring the continuous and efficient operation of the dust filtration device 4.

[0036] In some examples, a discharge pipe 8 is included. The bottom of the dust collection box 402 is fixedly connected to the discharge pipe 8, and the end of the discharge pipe 8 away from the dust collection box 402 is fixedly connected to a dust placement box 9. Its function is to facilitate the discharge of dust collected in the dust collection box 402 into the dust placement box 9 through the discharge pipe 8 for centralized storage and treatment, so as to avoid dust falling into the external environment and causing secondary pollution.

[0037] The circumferential surface of piston 702 is slidably connected to the inner wall of piston sleeve 707. The jet nozzle 704 is located above the filter cotton core 405. Its function is to ensure that the high-pressure gas ejected from the jet nozzle 704 can directly act on the surface of the filter cotton core 405, effectively remove dust particles attached to the filter cotton core 405, and improve the efficiency and effect of the reverse cleaning process.

[0038] The nozzle 704 is located below the air guide shroud 407, and the side section of the air supply pipe 703 is set to L-shape. Its function is to ensure that the layout of the nozzle 704 and the air supply pipe 703 is reasonable, to avoid interference with the air guide shroud 407, and to ensure that the nozzle 704 can smoothly spray high-pressure gas onto the filter cotton core 405.

[0039] There are several air nozzles 704, which are symmetrically distributed along the vertical central axis of the dust collection box 402. There are two air delivery pipes 703, which are also symmetrically distributed along the vertical central axis of the dust collection box 402. Their function is to ensure that the air nozzles 704 and air delivery pipes 703 can evenly cover the surface of the filter cotton core 405, thereby improving the uniformity and efficiency of the back-cleaning process.

[0040] For example, such as 1~ Figure 5As shown, when the extension end of the hydraulic cylinder 701 pushes the piston 702 away from the sealing plate 406, the piston 702 slides within the piston sleeve 707, compressing the gas in the air supply pipe 703. At this time, the second check valve 708 ensures that the gas can only flow from the air supply pipe 703 towards the jet nozzle 704, while the first check valve 705 prevents internal gas from entering the air supply pipe 703. As the gas is compressed, the high-pressure gas is ejected through the jet nozzle 704, directly acting on the surface of the filter cotton core 405, blowing off the dust particles attached to the filter cotton core 405. Simultaneously, due to the reasonable design of the number and layout of the jet nozzles 704, it ensures that the high-pressure gas evenly covers the entire surface of the filter cotton core 405, improving the uniformity and efficiency of the backwashing process. The blown-off dust particles fall into the bottom of the dust collection box 402 under gravity, and are finally discharged into the dust placement box 9 through the discharge pipe 8 for centralized storage and treatment, thereby preventing dust accumulation on the filter cotton core 405 and ensuring the continuous and efficient operation of the dust filtration device 4.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A roll texturing shot blasting machine, characterized in that, include: A shot blasting machine (1) is provided with a feeding device (2) at the top of the shot blasting machine (1), a bucket elevator (3) is provided at the top of the shot blasting machine (1), and a dust filter device (4) is provided at the top of the shot blasting machine (1). The dust filtration device (4) includes an exhaust connection pipe (401), which is connected through and fixedly connected to the top of the shot blasting machine (1). A dust collection box (402) is fixedly connected to the end of the exhaust connection pipe (401) away from the shot blasting machine (1). A base plate (403) is fixedly connected to the bottom of the dust collection box (402). An upper mounting plate (404) is fixedly connected to the top of the dust collection box (402). A filter cotton core (405) is provided at the bottom of the upper mounting plate (404). A sealing plate (406) is fixedly connected to the top of the upper mounting plate (404). An air guide hood (407) is fixedly connected to the top of the sealing plate (406). A connecting plate (408) is fixedly connected to the inner wall of the 07), and a rotating sleeve (409) is fixedly connected to the end of the connecting plate (408) away from the air guide cover (407). A rotating shaft (410) is rotatably connected to the inner wall of the rotating sleeve (409). A fan blade (411) is fixedly connected to one end of the rotating shaft (410), and a driven bevel gear (412) is fixedly connected to the end of the rotating shaft (410) away from the fan blade (411). A mounting block (413) is fixedly connected to the top of the sealing plate (406), and a motor (414) is fixedly connected to the top of the mounting block (413). A driving bevel gear (415) is fixedly connected to the output shaft of the motor (414).

2. The roll texturing shot blasting machine according to claim 1, characterized in that, A protective cover (5) is fixedly connected to the side of the motor (414), and a protective plate (6) is fixedly connected to the inner wall of the air guide cover (407).

3. A roll texturing shot blasting machine according to claim 2, characterized in that, The circumferential surface of the output shaft of the motor (414) penetrates and is rotatably connected to the side of the protective cover (5), and the circumferential surface of the rotating shaft (410) penetrates and is rotatably connected to the bottom of the protective cover (5).

4. A roll texturing shot blasting machine according to claim 3, characterized in that, The driving bevel gear (415) meshes with the driven bevel gear (412), and the driving bevel gear (415) has more teeth than the driven bevel gear (412).

5. A roll texturing shot blasting machine according to claim 4, characterized in that, The filter cotton core (405) has several feeding devices, which are arranged in a linear array along the bottom of the upper mounting plate (404), and the number of connecting plates (408) is also several.

6. A roll texturing shot blasting machine according to claim 5, characterized in that, A pneumatic back-cleaning device (7) is provided on the side of the dust collection box (402). The pneumatic back-cleaning device (7) includes a hydraulic cylinder (701). The hydraulic cylinder (701) is fixedly connected to the side of the dust collection box (402). A piston (702) is fixedly connected to the telescopic end of the hydraulic cylinder (701). An air supply pipe (703) is fixedly connected through and to the side of the sealing plate (406). An air nozzle (704) is fixedly connected to the circumferential surface of the air supply pipe (703). A one-way valve (705) is fixedly connected to the circumferential surface of the air supply pipe (703). An air inlet pipe (706) is fixedly connected to the circumferential surface of the air supply pipe (703). A piston sleeve (707) is fixedly connected to the end of the air supply pipe (703) away from the sealing plate (406). A one-way valve (708) is provided on the circumferential surface of the air inlet pipe (706).

7. A roll texturing shot blasting machine according to claim 6, characterized in that, The bottom of the dust collection box (402) is fixedly connected to a discharge pipe (8), and a dust placement box (9) is fixedly connected to the end of the discharge pipe (8) away from the dust collection box (402).

8. A roll texturing shot blasting machine according to claim 7, characterized in that, The circumferential surface of the piston (702) is slidably connected to the inner wall of the piston sleeve (707), and the jet nozzle (704) is located above the filter cotton core (405).

9. A roll texturing shot blasting machine according to claim 8, characterized in that, The jet nozzle (704) is located below the air guide shroud (407), and the side cross-section of the air supply pipe (703) is set to L-shape.

10. A roll texturing shot blasting machine according to claim 9, characterized in that, The number of air nozzles (704) is set to several and is symmetrically distributed along the vertical central axis of the dust collection box (402). The number of air supply pipes (703) is set to two and is symmetrically distributed along the vertical central axis of the dust collection box (402).

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