A dust removal device for carton processing

Abstract

The application discloses a dust removal device for carton processing, which comprises a shell, a dust collection mechanism for paperboard dust removal is arranged at the middle part of the inner side of the shell, the dust collection mechanism comprises a fixing sleeve, a dust blowing roller, a through groove, an air inlet pipe, a volute and an impeller fan, the fixing sleeve is fixedly arranged at one side of the inner part of the shell, the dust blowing roller is movably arranged in the fixing sleeve through a bearing, a plurality of through grooves are uniformly formed in the outer side surface of the dust blowing roller, the air inlet pipe is fixedly arranged on one side of the fixing sleeve through a connecting flange, and the volute is fixedly arranged on the upper end of the air inlet pipe. The application has good use effect, the gas discharged during dust removal is utilized for dust blowing, the paper scraps and dust attached to the surface of the paperboard are blown up by high-speed airflow, dust raising is generated in the shell, and then the dust raising is collected by adsorption, so that the dust removal effect of the device on the paperboard is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of flipping mechanism technology, specifically to a dust removal device for cardboard box processing. Background Technology

[0002] The cardboard box manufacturing process generates a significant amount of dust, primarily from steps such as raw material cutting, slotting, printing, and die-cutting. This dust not only affects the production environment but can also cause wear and tear on equipment and even endanger the health of operators. Therefore, effective dust control measures are a crucial aspect for cardboard box manufacturing companies to ensure production quality and safety.

[0003] While dust generated during the cutting process is easy to clean using existing technology, which involves using dust collection equipment, the cardboard surface also accumulates a significant amount of fine particulate dust during processing. As the cardboard is transported on the assembly line, this fine dust is dispersed, and over time, it can pose a significant health risk to workers. Current dust collection methods typically involve installing suction heads along the cardboard's transport path, but these methods are not very effective at removing dust adhering to the cardboard. Therefore, a dust collection device for cardboard box processing is needed to address this issue. Summary of the Invention

[0004] The purpose of this invention is to provide a dust removal device for cardboard box processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for cardboard processing, comprising a housing, wherein a dust collection mechanism for removing dust from cardboard is provided in the middle of the inner side of the housing, the dust collection mechanism comprising a fixed sleeve, a dust blowing roller, a through groove, an air inlet pipe, a volute, and an impeller fan, wherein a fixed sleeve is fixedly provided on one side of the inner side of the housing, and a dust blowing roller is movably arranged inside the fixed sleeve via a bearing, wherein several through grooves are evenly opened on the outer surface of the dust blowing roller, an air inlet pipe is fixedly provided on one side of the fixed sleeve via a connecting flange, a volute is fixedly provided at the upper end of the air inlet pipe, an impeller fan is provided in the middle of the inner side of the housing, a conveying mechanism for conveying cardboard is provided on both sides of the inner side of the housing, a transmission mechanism for driving the conveying mechanism is provided on the outer side of the housing, and a filtering mechanism for filtering paper scraps and dust is provided at the upper end of the housing.

[0006] Preferably, the transmission mechanism includes a transmission roller, a second fixing block, and a first shield. Transmission rollers are movably mounted on both sides of the housing via bearings. A second fixing block is fixedly mounted on the upper end of the transmission roller inside the housing, and a first shield is fixedly mounted on the lower end of the second fixing block. The first shield is positioned outside the transmission roller. To prevent paper scraps and dust from being blown everywhere during dust blowing, the entire dust blowing process is conducted inside the housing. The transmission rollers on both sides of the housing act as a barrier, serving both to transmit the cardboard and to isolate the housing from the external environment as much as possible, preventing paper scraps from being blown to the outside of the housing during dust blowing. The first shield positioned outside the transmission roller further provides a shielding and isolation function.

[0007] Preferably, the transmission mechanism includes a synchronous pulley, a synchronous belt, a worm gear reducer, and a motor. A synchronous pulley is fixedly mounted at one end of both the transmission roller and the dust-blowing roller. A synchronous belt is sleeved on the outer side of the synchronous pulley. A worm gear reducer is fixedly mounted on one side of the housing surface, and a motor is fixedly mounted on the outer side of the worm gear reducer. The power output shaft of the motor is connected to the power input shaft of the worm gear reducer, and the power output shaft of the worm gear reducer is connected to one side of the transmission roller. The transmission mechanism can simultaneously drive both the transmission roller and the dust-blowing roller. The rotating conveyor roller and dust-blowing roller transport the cardboard that needs dust removal forward. During transport, the cardboard is blown by air inside the housing, causing the paper scraps adhering to its surface to be blown away. The timing pulleys in this device are also carefully designed. Since the power transmission of the timing pulleys and timing belts relies on friction, the timing belt needs to create a certain wrap angle with the timing pulleys to achieve sufficient friction. Therefore, this device has two timing pulleys at one end of the dust-blowing roller, which are connected to the timing pulleys on the surface of the conveyor roller via timing belts, effectively ensuring power transmission.

[0008] Preferably, the filtration mechanism includes a suction port, a connecting chamber, and a suction pipe. The upper end of the housing is fixedly provided with suction ports on both sides of the dust blowing drum. A connecting chamber is fixedly provided at the upper end of the suction port. A suction pipe is fixedly provided between the connecting chamber and the volute. When the impeller fan inside the volute is working, it can generate negative pressure, thereby using the suction port, connecting chamber, and suction pipe to draw dust-laden air from inside the housing into the volute. During the airflow, it will pass through the filtration section, where paper scraps inside the air can be filtered and removed.

[0009] Preferably, the filtration mechanism further includes a filter section and a filter element. The filter section is provided in the middle of the suction pipe via a connecting flange. The filter element is provided inside the filter section. The air drawn in through the connecting chamber will first pass through the filter section before entering the housing. When the air enters the filter section, it will first enter the filter element. Then, the filter will enter from the inside of the filter element to the outside of the filter element, and then enter the volute housing through the suction pipe. However, paper scraps will be filtered out and remain inside the filter element, waiting for the connecting flange to be removed later to disassemble the filter section, so that the paper scraps inside the filter element can be cleaned.

[0010] Preferably, a second shield is movably fitted inside the housing on the outside of the dust-blowing roller. A second fixing block is fixed between the second shield and the inner sidewall of the housing, which can fix the second shield. The second shield ensures that when the dust-blowing roller blows dust, the airflow will only exit from the direction closest to the cardboard, thus avoiding airflow being blown outwards and wasted. Preferably, a rotary sealing mechanism is provided between the fixed sleeve and the dust blowing roller. The sealing mechanism includes a first sealing ring, a second sealing ring, and a spring. The first sealing ring is fixedly provided on both sides of the surface of the dust blowing roller, and the second sealing ring is provided inside the fixed sleeve between the first sealing rings. The spring is provided between the second sealing rings. The sealing mechanism of this device can provide a movable seal at the connection between the dust blowing roller and the fixed sleeve. Since the dust blowing roller needs to be in contact with the cardboard surface to ensure the blowing effect during use, it will rotate. Therefore, the spring in the sealing mechanism is used to push the second sealing ring so that the surfaces of the second sealing ring and the first sealing ring are tightly attached to achieve the effect of mechanical pressure sealing. This ensures that the sealing effect can still be maintained when the device rotates. At the same time, the elasticity of the J-shaped sealing ring itself is used to make the outer surface of the lower end of the J-shaped sealing ring fit with the surface of the dust blowing roller to achieve a further movable sealing effect.

[0011] Preferably, a J-shaped sealing ring is fixedly provided on one side inside the fixed sleeve. The outer surface of the lower end of the J-shaped sealing ring is in contact with the outer surface of the dust blowing drum. This device utilizes the elasticity of the J-shaped sealing ring itself to make the outer surface of the lower end of the J-shaped sealing ring and the surface of the dust blowing drum fit together, so as to achieve a further active sealing effect.

[0012] Preferably, the air outlet direction of the impeller fan is connected to the inside of the air inlet pipe. When the impeller fan is working, centrifugal force can throw the cavity into the air inlet pipe. Then, the air can enter the dust blowing drum through the air inlet pipe and the fixed sleeve. The air is then blown out from the through groove on the surface of the dust blowing drum. Since the dust blowing drum is in close contact with the cardboard surface at this time, the high-speed airflow blown out of the through groove impacts the outer surface of the cardboard, causing the paper scraps and dust attached to the cardboard surface to be blown up by the high-speed airflow, generating dust inside the shell. Then, the dust is adsorbed and collected, which can greatly improve the dust collection and removal effect of this device on cardboard.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes an impeller fan. When the impeller fan is working, centrifugal force can throw the cavity into the air inlet pipe. Then, air can enter the dust-blowing drum through the air inlet pipe and the fixed sleeve. The air then blows out from the through groove on the surface of the dust-blowing drum. Since the dust-blowing drum is in close contact with the cardboard surface at this time, the high-speed airflow blown out of the through groove impacts the outer surface of the cardboard, causing the paper scraps and dust attached to the cardboard surface to be blown up by the high-speed airflow, generating dust inside the shell. Then, this dust is adsorbed and collected, which can greatly improve the dust collection and removal effect of this device on cardboard.

[0014] 2. In order to prevent paper scraps and dust from being blown everywhere during dust blowing, the entire dust blowing process is carried out inside the housing. The two sides of the housing are equipped with conveying rollers for sealing, which can not only convey the paperboard, but also isolate the housing from the external environment as much as possible, preventing paper scraps from being blown to the outside of the housing during dust blowing. At this time, the first shield is set on the outside of the conveying rollers, which can further shield and isolate the device, thus improving the effectiveness of the device.

[0015] 3. When using this invention, the dust-blowing roller needs to adhere to the cardboard surface to ensure the blowing effect, which will cause it to rotate. Therefore, the spring in the sealing mechanism is used to push the second sealing ring so that the surfaces of the second sealing ring and the first sealing ring are tightly adhered to achieve the effect of mechanical pressure sealing. This ensures that the sealing effect can still be maintained when the device rotates. At the same time, the elasticity of the J-shaped sealing ring itself is used to make the outer surface of the lower end of the J-shaped sealing ring adhere to the surface of the dust-blowing roller, so as to achieve a further active sealing effect. This ensures that the device can be used normally. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a dust removal device for cardboard box processing according to the present invention; Figure 2 This is a side view of the overall structure of a dust removal device for cardboard box processing according to the present invention; Figure 3This is a cross-sectional view of the overall structure of a dust removal device for cardboard box processing according to the present invention; Figure 4 The overall structure of a dust removal device for cardboard box processing according to the present invention Figure 3 The front view; Figure 5 This is a cross-sectional view of the overall structure of a dust removal device for cardboard box processing according to the present invention. Figure 2 ; Figure 6 This is a cross-sectional view of the overall structure of a dust removal device for cardboard box processing according to the present invention. Figure 3 ; Figure 7 This is an internal structural view of the fixing sleeve in the overall structure of a dust removal device for cardboard box processing according to the present invention; Figure 8 The overall structure of a dust removal device for cardboard box processing according to the present invention Figure 7 Enlarged view at point A in the middle; Figure 9 The overall structure of a dust removal device for cardboard box processing according to the present invention Figure 7 Enlarged view at point B; Figure 10 This is an internal structural view of the filter section in the overall structure of a dust removal device for cardboard box processing according to the present invention.

[0017] In the diagram: 1. Housing; 2. Dust collection mechanism; 201. Fixing sleeve; 202. Second shield; 203. Dust blowing roller; 204. Through groove; 205. Air inlet pipe; 206. Volute; 207. Impeller fan; 208. Second fixing block; 3. Transmission mechanism; 301. Transmission roller; 302. First fixing block; 303. First shield; 4. Rotating frame; 401. Transmission mechanism; 402. Synchronous pulley; 403. Synchronous belt; 404. Worm gear reducer; 405. Electric motor; 5. Filtering mechanism; 501. Dust suction port; 502. Connecting chamber; 503. Dust suction pipe; 504. Filter section; 505. Filter element; 6. Sealing mechanism; 601. First sealing ring; 602. Second sealing ring; 603. Spring; 604. J-type sealing ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-10This invention provides a technical solution: a dust removal device for cardboard box processing, comprising a housing 1, wherein a dust collection mechanism 2 for removing dust from cardboard is disposed in the middle of the inner side of the housing 1, the dust collection mechanism 2 comprising a fixed sleeve 201, a dust blowing roller 203, a through groove 204, an air inlet pipe 205, a volute 206, and an impeller fan 207, wherein the fixed sleeve 201 is fixedly disposed on one side inside the housing 1, and the dust blowing roller 203 is movably disposed inside the fixed sleeve 201 via bearings. The outer surface is evenly provided with several through grooves 204. An air inlet pipe 205 is fixedly installed on one side of the fixed sleeve 201 through a connecting flange. A volute 206 is fixedly installed at the upper end of the air inlet pipe 205. An impeller fan 207 is provided in the middle of the inner side of the housing 1. A conveying mechanism 401 for conveying paperboard is provided on both sides inside the housing 1. A transmission mechanism for driving the conveying mechanism 401 is provided on the outer side of the housing 1. A filter mechanism 5 for filtering paper scraps and dust is provided at the upper end of the housing 1.

[0020] The transmission mechanism 401 includes a transmission roller 301, a first fixing block 302, and a first shielding cover 303. The transmission roller 301 is movably mounted on both sides of the housing 1 via bearings. A first fixing block 302 is fixedly mounted on the upper end of the transmission roller 301 inside the housing 1, and a first shielding cover 303 is fixedly mounted on the lower end of the first fixing block 302. The first shielding cover 303 is located on the outside of the transmission roller 301. To prevent paper scraps and dust from being blown everywhere during dust blowing, the entire dust blowing process is carried out inside the housing 1. The transmission rollers 301 on both sides of the housing 1 act as a seal, serving both to transmit the cardboard and to isolate the housing 1 from the external environment as much as possible, preventing paper scraps from being blown to the outside of the housing 1 during dust blowing. The first shielding cover 303, located on the outside of the transmission roller 301, further serves to shield and isolate the area. The transmission mechanism 401 includes a synchronous pulley 402, a synchronous belt 403, a worm gear reducer 404, and a motor 405. A synchronous pulley 402 is fixedly mounted at one end of both the transmission roller 301 and the dust blowing roller 203. A synchronous belt 403 is sleeved on the outer side of the synchronous pulley 402. A worm gear reducer 404 is fixedly mounted on one side of the surface of the housing 1. A motor 405 is fixedly mounted on the outer side of the worm gear reducer 404. The power output shaft of the motor 405 is connected to the power input shaft of the worm gear reducer 404. The power output shaft of the worm gear reducer 404 is connected to one side of the transmission roller 301. The transmission mechanism 401 can simultaneously drive the transmission roller 302. 1. The dust-blowing roller 203 rotates, and the conveyor roller 301 and the dust-blowing roller 203 can convey the cardboard that needs to be dusted forward. During the conveying, the cardboard is blown by air inside the housing 1, so that the paper scraps adhering to the surface of the cardboard are blown away. At the same time, the synchronous pulley 402 of this device is also carefully set. Since the power transmission of the synchronous pulley 402 and the synchronous belt 403 relies on friction, the synchronous belt 403 needs to form a certain wrap angle with the synchronous pulley 402 to obtain sufficient friction. Therefore, this device has two synchronous pulleys 402 at one end of the dust-blowing roller 203. The two synchronous pulleys 402 are connected to the synchronous pulleys 402 on the surface of the conveyor roller 301 through the synchronous belt 403, which can effectively ensure the power transmission. The filtration mechanism 5 includes a suction port 501, a connecting chamber 502, and a suction pipe 503. The upper end of the housing 1 is fixedly provided with suction ports 501 on both sides of the dust blowing roller 203. The upper end of the suction port 501 is fixedly provided with a connecting chamber 502. The suction pipe 503 is fixedly provided between the connecting chamber 502 and the volute 206. When the impeller fan 207 inside the volute 206 is working, it can generate negative pressure, so that the dust-laden air inside the housing 1 can be sucked into the volute 206 by the suction port 501, the connecting chamber 502, and the suction pipe 503. During the airflow, it will pass through the filter section 504, where paper scraps inside the air can be filtered and removed. The filtration mechanism 5 also includes a filter section 504 and a filter element 505. The filter section 504 is provided in the middle of the suction pipe 503 through a connecting flange. The filter element 505 is provided inside the filter section 504. The air sucked in through the connecting chamber 502 will first pass through the filter section 504 before entering the housing 1. When the air enters the filter section 504, it will first enter the filter element 505. Then, the filter will enter from the inside of the filter element 505 to the outside of the filter element 505, and then enter the volute 206 through the suction pipe 503. However, paper scraps will be filtered out and left inside the filter element 505, waiting for the connecting flange to be removed later to remove the filter section 504, so that the paper scraps inside the filter element 505 can be cleaned. Inside the housing 1, a second shield 202 is movably fitted onto the outside of the dust-blowing roller 203. A second fixing block 208 is fixedly disposed between the second shield 202 and the inner sidewall of the housing 1, thereby fixing the second shield 202. The second shield 202 ensures that when the dust-blowing roller 203 blows dust, the airflow will only exit from the direction closest to the cardboard, thus avoiding waste caused by airflow blowing outwards. A rotary sealing mechanism 6 is provided between the fixed sleeve 201 and the dust blowing roller 203. The sealing mechanism 6 includes a first sealing ring 601, a second sealing ring 602, and a spring 603. The first sealing ring 601 is fixedly disposed on both sides of the surface of the dust blowing roller 203. The second sealing ring 602 is disposed inside the fixed sleeve 201 between the first sealing rings 601, and the spring 603 is disposed between the second sealing rings 602. The sealing mechanism 6 of this device can provide a flexible seal at the connection between the dust blowing roller 203 and the fixed sleeve 201. Dynamic sealing is achieved because the dust blowing roller 203 needs to be in contact with the cardboard surface to ensure the blowing effect during use, which will cause it to rotate. Therefore, the spring 603 in the sealing mechanism 6 is used to push the second sealing ring 602 so that the surface of the second sealing ring 602 and the first sealing ring 601 are tightly attached to achieve the mechanical pressure sealing effect, ensuring that the sealing effect can still be maintained when the device rotates. At the same time, the elasticity of the J-type sealing ring 604 is used to make the outer surface of the lower end of the J-type sealing ring 604 fit with the surface of the dust blowing roller 203 to achieve a further dynamic sealing effect. A J-shaped sealing ring 604 is fixedly installed on one side inside the fixed sleeve 201. The outer surface of the lower end of the J-shaped sealing ring 604 is in contact with the outer surface of the dust blowing roller 203. This device utilizes the elasticity of the J-shaped sealing ring 604 itself to make the outer surface of the lower end of the J-shaped sealing ring 604 and the surface of the dust blowing roller 203 in contact, so as to achieve a further active sealing effect. When the impeller fan 207 is working, the air outlet direction is connected to the inside of the air inlet pipe 205. When the impeller fan 207 is working, the air cavity can be thrown into the air inlet pipe 205 by centrifugal force. Then, the air can enter the dust blowing drum 203 through the air inlet pipe 205 and the fixed sleeve 201. Then, the air is blown out from the through groove 204 on the surface of the dust blowing drum 203. Since the dust blowing drum 203 is in close contact with the cardboard surface at this time, the high-speed airflow blown out of the through groove 204 impacts the outer surface of the cardboard, causing the paper scraps and dust attached to the cardboard surface to be blown up by the high-speed airflow, generating dust inside the housing 1. Then, the dust is absorbed and collected, which can greatly improve the dust collection and removal effect of this device on cardboard. When using this device, the cardboard to be dusted is conveyed into the housing 1 through the conveyor roller 301. The cardboard then passes through the conveyor roller 301 on one side, the dust blowing roller 203, and the conveyor roller 301 on the other side in sequence. When the cardboard passes through the dust blowing roller 203, the impeller fan 207 can work. When the impeller fan 207 works, the cavity is thrown into the air inlet pipe 205 by centrifugal force. Then, the air can enter the dust blowing roller 203 through the air inlet pipe 205 and the fixed sleeve 201. Then, the air is blown out from the through groove 204 on the surface of the dust blowing roller 203. Since the dust blowing roller 203 is in close contact with the surface of the cardboard at this time, the high-speed airflow blown out of the through groove 204 impacts the outer surface of the cardboard, causing the paper scraps and dust attached to the surface of the cardboard to be blown up by the high-speed airflow, generating dust inside the housing 1. Then, the dust is absorbed and collected, which can greatly improve the dust collection and removal effect of this device on cardboard. When the impeller fan 207 is working, it will also create a negative pressure inside the housing 1. Then, the dust-laden air inside the housing 1 can be sucked into the volute 206 through the suction port 501, connecting chamber 502, and suction pipe 503. During the airflow, it will pass through the filter section 504. The filter section 504 can filter and remove paper scraps inside the air. When the air enters the filter section 504, it will first enter the filter element 505. Then the filter will enter from the inside of the filter element 505 to the outside of the filter element 505, and then enter the volute 206 through the suction pipe 503. However, the paper scraps will be filtered down and left inside the filter element 505. The filter section 504 can be removed later by disassembling the connecting flange, so that the paper scraps inside the filter element 505 can be cleaned. Furthermore, to prevent paper scraps and dust from being blown everywhere during dust blowing, the entire dust blowing process is carried out inside the housing 1. The housing 1 is equipped with conveyor rollers 301 on both sides for sealing, which can not only convey the cardboard, but also isolate the housing 1 from the external environment as much as possible, preventing paper scraps from being blown to the outside of the housing 1 during dust blowing. At this time, the first shield 303 is set on the outside of the conveyor rollers 301, which can further shield and isolate them, thus improving the effectiveness of the device. Furthermore, during the use of this device, the dust-blowing roller 203 needs to adhere to the cardboard surface to ensure the blowing effect, which will cause it to rotate. Therefore, the spring 603 in the sealing mechanism 6 is used to push the second sealing ring 602 so that the surfaces of the second sealing ring 602 and the first sealing ring 601 are tightly fitted to achieve the effect of mechanical pressure sealing, ensuring that the sealing effect can still be maintained when the device rotates. At the same time, the elasticity of the J-type sealing ring 604 is used to make the outer surface of the lower end of the J-type sealing ring 604 fit with the surface of the dust-blowing roller 203 to achieve a further active sealing effect, thus ensuring that the device can be used normally.

[0021] 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.

[0022] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for cardboard box processing, comprising a housing (1), characterized in that: A dust collection mechanism (2) for removing dust from cardboard is provided in the middle of the inner side of the housing (1). The dust collection mechanism (2) includes a fixed sleeve (201), a dust blowing roller (203), a through groove (204), an air inlet pipe (205), a volute (206), and an impeller fan (207). A fixed sleeve (201) is fixedly provided on one side of the inside of the housing (1). The dust blowing roller (203) is movably provided inside the fixed sleeve (201) through a bearing. The outer surface of the dust blowing roller (203) is evenly opened. There are several through slots (204). An air inlet pipe (205) is fixedly installed on one side of the fixed sleeve (201) through a connecting flange. A volute (206) is fixedly installed at the upper end of the air inlet pipe (205). An impeller fan (207) is installed in the middle of the inner side of the housing (1). A conveying mechanism (401) for conveying paperboard is installed on both sides inside the housing (1). A transmission mechanism for driving the conveying mechanism (401) is installed on the outer side of the housing (1). A transmission mechanism for passing through is installed at the upper end of the housing (1). The filter mechanism (5) for filtering paper scraps and dust includes a suction port (501), a connecting chamber (502), and a suction pipe (503). The upper end of the housing (1) has suction ports (501) fixedly installed on both sides of the dust blowing roller (203). A connecting chamber (502) is fixedly installed at the upper end of each suction port (501). A suction pipe (503) is fixedly installed between the connecting chamber (502) and the volute (206). The filter mechanism (5) also includes a filter section (504) and a filter element (…). 505), the dust suction pipe (503) is provided with a filter section (504) in the middle through a connecting flange, the filter section (504) is provided with a filter element (505), the housing (1) is provided with a second shield (202) movably sleeved on the outside of the dust blowing drum (203), the second shield (202) is fixedly provided with a second fixing block (208) between the second shield (202) and the inner side wall of the housing (1), the air outlet direction of the impeller fan (207) when working is interconnected with the inside of the air inlet pipe (205).

2. The dust removal device for cardboard box processing according to claim 1, characterized in that: The transmission mechanism (401) includes a transmission roller (301), a first fixing block (302), and a first shield (303). The transmission roller (301) is movably arranged on both sides of the housing (1) through bearings. The first fixing block (302) is fixedly arranged on the upper end of the transmission roller (301) inside the housing (1). The first shield (303) is fixedly arranged on the lower end of the first fixing block (302). The first shield (303) is arranged on the outside of the transmission roller (301).

3. The dust removal device for cardboard box processing according to claim 2, characterized in that: The transmission mechanism (401) includes a synchronous pulley (402), a synchronous belt (403), a worm gear reducer (404), and a motor (405). A synchronous pulley (402) is fixedly installed at one end of both the transmission roller (301) and the dust blowing roller (203). A synchronous belt (403) is sleeved on the outside of the synchronous pulley (402). A worm gear reducer (404) is fixedly installed on one side of the surface of the housing (1). A motor (405) is fixedly installed on the outside of the worm gear reducer (404). The power output shaft of the motor (405) is connected to the power input shaft of the worm gear reducer (404). The power output shaft of the worm gear reducer (404) is connected to the transmission roller (301) on one side.

4. The dust removal device for cardboard box processing according to claim 1, characterized in that: A rotary sealing mechanism (6) is provided between the fixed sleeve (201) and the dust blowing drum (203). The sealing mechanism (6) includes a first sealing ring (601), a second sealing ring (602), and a spring (603). The first sealing ring (601) is fixedly provided on both sides of the surface of the dust blowing drum (203). The second sealing ring (602) is provided between the first sealing ring (601) inside the fixed sleeve (201), and the spring (603) is provided between the second sealing ring (602).

5. A dust removal device for cardboard box processing according to claim 4, characterized in that: A J-shaped sealing ring (604) is fixedly installed on one side inside the fixed sleeve (201), and the outer surface of the lower end of the J-shaped sealing ring (604) is in contact with the outer surface of the dust blowing roller (203).

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