A dust removal device for a wood cutting workshop

Abstract

This invention discloses a dust removal device for a wood cutting workshop, relating to the field of dust removal technology. It includes: a dust collection box; a dust collector, the dust collector being located on the right side of the dust collection box and connected to the dust collection box via a pipe; a suction pipe, the suction pipe being fixedly installed on the top of the dust collector and communicating with the wood cutting workshop; an exhaust system, the exhaust system being fixedly installed on the surface of the dust collection box; and a pulse cleaning system, the pulse cleaning system being fixedly installed on the top of the inner wall of the dust collection box. A support frame is fixedly installed on the inner wall of the dust collection box, and a partition is fixedly installed on the surface of the support frame. The support frame has grooves on its surface. By moving the support plate outwards, the filter bag is radially expanded, allowing the filter bag to unfold and making it easier for sawdust and dust to fall off the outer wall of the filter bag, preventing dust accumulation and clumping in the filter bag's folds, which would affect the dust removal effect.

Description

Technical Field

[0001] This invention belongs to the field of dust removal, specifically relating to a dust removal device for a wood cutting workshop. Background Technology

[0002] This equipment is a specialized environmental protection device designed specifically for sawing-related wood chips, sawdust, and wood dust. Its core function is to suck up the dust at the source, filter and separate it, then release clean air, and finally collect the debris.

[0003] Patent publication number CN216986860U relates to a dust removal device for a wood processing workshop, comprising: a housing; a wheel frame assembly connected to the housing for adjusting the movement of the housing; a dust removal device connected to the wheel frame assembly; and a positioning assembly connected to the housing for limiting and fixing the wheel frame assembly. The dust removal device includes: a first air intake assembly connected to the housing for large-scale dust removal and cleaning inside the workshop; and a second air intake assembly connected to the first air intake assembly for dust removal and cleaning of the workshop floor. The first air intake assembly can perform directional dust removal, and the second air intake assembly can cooperate with the first air intake assembly to remove dust from the workshop floor. Simultaneously, the dust removal airflow, in conjunction with the positioning assembly, completes the limiting and fixing of the device, further improving the stability of the device during dust removal.

[0004] In existing technologies, dust removal wind power is used in conjunction with positioning components to limit and fix the device, thereby improving the stability of the device during dust removal. However, when the wind carries dust into the dust collection box, the first row of filter bags is subjected to the greatest impact force. Long-term impact will make them more prone to damage than other bags, requiring frequent replacement and affecting the service life of the bags. At the same time, the accumulation of sawdust on the bags for a long time will reduce the adsorption effect of the bags and affect the dust removal efficiency of the bags. Summary of the Invention

[0005] This invention provides a dust removal device for a wood cutting workshop, which provides a method to move the support plate outward to radially expand the filter bag, making it easier for wood chips and dust to fall off the outer wall of the filter bag, avoiding dust accumulation in the filter bag folds and local material clumping, which would affect the dust removal effect.

[0006] This invention discloses a dust removal device for a wood cutting workshop, comprising: a dust collection box; a dust collector, the dust collector being located on the right side of the dust collection box and connected to the dust collection box via a pipe; a suction pipe, the suction pipe being fixedly installed on the top of the dust collector and communicating with the wood cutting workshop; an exhaust system, the exhaust system being fixedly installed on the surface of the dust collection box; a pulse cleaning system, the pulse cleaning system being fixedly installed on the top of the inner wall of the dust collection box; a support frame being fixedly installed on the inner wall of the dust collection box; a partition being fixedly installed on the surface of the support frame; a groove being formed on the surface of the support frame; a semi-circular block being fixedly installed inside the groove; and an annular slide rail being fixedly installed at the bottom of the support frame. The annular slide rail is driven by a motor, and the output of the annular slide rail... A sealing element is provided at the end to seal the bottom of the annular slide rail. A fixed plate is fixedly installed at the bottom of the sealing element. A rotating frame is rotatably installed on the inner wall of the fixed plate. The rotating frame has an exhaust hole inside, and the fixed plate has an air outlet hole inside. The exhaust hole and the air outlet hole are connected. The annular slide rail and the partition are connected by a connecting pipe. The air outlet hole is connected to the annular slide rail. A filter bag is covered on the surface of the rotating frame and is tied to the surface of the rotating frame with a cable tie. An L-shaped plate is slidably installed on the surface of the fixed plate. A spiral rod is fixedly installed on the surface of the L-shaped plate and is spirally connected to the rotating frame. A universal wheel is provided at the top of the spiral rod. When the sliding rod moves downward, it will drive the hinge rod to rotate downward. When the hinge rod rotates downward, it will push the sliding block and the support plate to move away from the rotating frame.

[0007] A sliding rod is slidably installed on the inner wall of the rotating frame. A connecting plate is fixedly installed on the surface of the rotating frame. A sliding block is slidably installed on the top of the connecting plate. A hinge rod is rotatably installed on the inner wall of the sliding rod. The end of the hinge rod away from the sliding rod is rotatably installed on the inner wall of the sliding block. A support plate is fixedly installed on the surface of the sliding block. A first torsion spring is provided between the fixed plate and the rotating frame. The rotation frame is reset by the elastic force of the first torsion spring. A first spring is provided between the fixed plate and the L-shaped plate. The L-shaped plate is reset by the elastic force of the first spring. A second spring is provided between the connecting plate and the sliding block. The sliding block is reset by the elastic force of the second spring. A return spring is provided between the rotating frame and the sliding rod. The sliding rod is reset by the elastic force of the return spring.

[0008] In this embodiment, the dust generated in the wood cutting workshop is drawn into the suction pipe by a dust collector, then enters the duct, and finally is discharged into the dust collection box. The dust is adsorbed by filter bags, and air passes through the filter baffles to the top of the dust collection box before being exhausted by the exhaust system. The operator can control a motor to drive a circular slide rail, which in turn moves a sealing element to prevent dust from entering and affecting the normal operation of the equipment. The sliding of the sealing element also causes the fixed plate, filter bags, and rotating frame to slide around the circular slide rail. By switching the position of the filter bags, continuous airflow impact on the same filter bag is avoided, preventing localized overload and wear. Prolonged impact on the same filter bag makes it more prone to damage than other filter bags, requiring frequent replacement and affecting the lifespan of the filter bags. The rotating frame slides around the annular slide rail, causing the L-shaped plate and the spiral rod to slide around the annular slide rail as well. During the sliding process, the spiral rod comes into contact with the arc surface of the semi-circular block. The arc surface of the semi-circular block pushes against the caster wheel and the spiral rod downwards. The downward movement of the spiral rod pushes the rotating frame to rotate. The centrifugal force generated by the rotation of the rotating frame throws off the dust and impurities on the surface of the filter bag, improving the dust removal effect. At the same time, the downward movement of the spiral rod pushes the sliding rod downwards, which in turn drives the hinge rod to rotate downwards. The downward rotation of the hinge rod pushes the sliding block and the support plate to move away from the rotating frame. The outward movement of the support plate expands the filter bag radially, making it easier for sawdust and dust on the outer wall of the filter bag to fall off. This prevents dust from being trapped in the folds of the filter bag and localized material accumulation and clumping, which would affect the dust removal effect.

[0009] Furthermore, the rotating frame is internally equipped with a dust-removing device and a support device. The dust-removing device includes a protrusion, a fixed shaft, a rotating sleeve shaft, and a limiting plate. The protrusion is fixedly installed on the circumferential surface of the rotating frame, the fixed shaft is fixedly installed at the bottom of the fixed plate, and the rotating sleeve shaft is rotatably installed on the circumferential surface of the fixed shaft. Two protruding plates are provided on the circumferential surface of the rotating sleeve shaft, and the limiting plate is fixedly installed at the bottom of the fixed plate. The rotation of the rotating frame drives the protrusion to rotate. During the rotation of the protrusion, it will contact the protruding plates on the surface of the rotating sleeve shaft. The right protruding plate will be limited by the limiting plate. When the protrusion rotates, it will contact the left protruding plate and generate vibration. The vibration of the rotating frame drives the filter bag to vibrate.

[0010] Furthermore, the connecting plate has a slanted groove on its surface, and the support plate has a groove on its surface. An arc-shaped plate is slidably installed on the inner wall of the groove, and a U-shaped frame is fixedly installed on the surface of the arc-shaped plate. The U-shaped frame slides on the inner wall of the slanted groove. When the U-shaped frame moves away from the rotating frame, it will be squeezed by the slanted groove. The slanted groove will squeeze the U-shaped frame to move upward, and the upward movement of the U-shaped frame will drive the arc-shaped plate to move upward.

[0011] Furthermore, a second torsion spring is provided between the rotating sleeve shaft and the fixed shaft. The rotating sleeve shaft is reset by the elastic force of the second spring. The limiting plate is in contact with the right convex plate. A third spring is provided between the first groove and the arc plate. The arc plate is reset by the elastic force of the third spring.

[0012] Furthermore, the support device includes an arc-shaped guide groove, a short rod, and an arc-shaped sliding plate. The arc-shaped guide groove is formed on the inner wall of a groove. The arc-shaped sliding plate is slidably mounted on the top of the arc-shaped plate. The short rod is fixedly mounted on the surface of the arc-shaped sliding plate. The end of the short rod away from the arc-shaped sliding plate slides on the inner wall of the arc-shaped guide groove. The arc-shaped plate moves upward, causing the arc-shaped sliding plate to move upward. The upward movement of the arc-shaped sliding plate causes the short rod to move upward. During the upward movement of the short rod, it slides along the arc-shaped guide groove. The reciprocating sliding of the short rod along the arc-shaped guide groove causes the arc-shaped sliding plate to contact the filter bag back and forth.

[0013] Furthermore, a long rod is slidably installed on the inner wall of the rotating frame, and a circular plate is fixedly installed at the bottom of the long rod. When the sliding rod moves downward, it pushes the long rod downward, and when the long rod moves downward, it drives the circular plate downward.

[0014] This invention provides a dust removal device for a wood cutting workshop. It has the following beneficial effects: 1. This invention avoids continuous airflow impact on the same filter bag by switching the position of the filter bag, thus preventing localized overload and wear. Prolonged impact on the same filter bag makes it more prone to damage than other filter bags, requiring frequent replacement and affecting the service life of the filter bag. The centrifugal force generated by the rotation of the rotating frame throws off the dust and impurities on the surface of the filter bag, improving the dust removal effect. At the same time, the downward rotation of the hinge rod pushes the sliding block and support plate to move away from the rotating frame. The outward movement of the support plate expands the filter bag radially, making it easier for sawdust and dust on the outer wall of the filter bag to fall off. This prevents dust from being trapped in the folds of the filter bag and localized material accumulation and clumping, which would affect the dust removal effect.

[0015] 2. In this invention, semi-circular blocks are set on the left and right sides of the support frame. The rotating frame drives the protrusions to rotate. During the rotation of the protrusions, they will contact the convex plate on the surface of the rotating sleeve shaft. The right convex plate will be limited by the limiting plate. When the protrusions rotate, they will contact the left convex plate to generate vibration, causing the filter bag to shake at its closest and furthest points from the air inlet. The vibration, combined with the airflow, can improve the effect of dust removal from the filter bag, preventing excessive impurities from affecting the adhesion effect when the filter bag rotates to the pipe position, thus affecting the adsorption effect. At the same time, the upward movement of the U-shaped frame will drive the arc plate to move upward. The arc plate will smooth out the wrinkles of the filter bag by moving upward against the inner wall of the filter bag, preventing dust and impurities from getting stuck in the wrinkles of the filter bag and affecting the dust removal effect.

[0016] 3. In this invention, the short rod slides along the arc-shaped guide groove as it moves upward. The short rod slides back and forth along the arc-shaped guide groove, causing the arc-shaped sliding plate to contact the filter bag back and forth. The arc-shaped sliding plate moves towards the filter bag, pushing the dust in the gaps of the filter bag outward, thus removing impurities stuck on the filter bag and preventing them from affecting the dust removal effect. At the same time, the long rod moves downward, causing the circular plate to move downward. The downward movement of the circular plate pushes the bottom of the filter bag downward, keeping the filter bag in a taut state. Wood chips and dust attached to the outer wall are more easily detached as a whole, eliminating dead corners where dust can accumulate and improving the overall dust removal effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 This is a structural schematic diagram of the overall cross-section provided in an embodiment of this application; Figure 3 This is a schematic diagram of the pulse cleaning device and support frame provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the bottom of the fixing plate provided in an embodiment of this application; Figure 5 Provided for the embodiments of this application Figure 4 Enlarged structural diagram of section A; Figure 6 This is a structural schematic diagram of the cross-section of the support plate provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the rotating frame provided in the embodiments of this application; Figure 8 Provided for the embodiments of this application Figure 7 Enlarged structural diagram of section B; Figure 9 This is a structural schematic diagram of the cross-section of the rotating frame provided in an embodiment of this application.

[0018] Figure label: 1. Dust collector; 2. Dust collector; 3. Suction pipe; 4. Exhaust equipment; 5. Pulse cleaning equipment; 6. Support frame; 7. Semicircular block; 8. Circular slide rail; 9. Fixed plate; 91. Filter bag; 10. Rotating frame; 11. L-shaped plate; 12. Spiral rod; 13. Sliding rod; 14. Connecting plate; 15. Hinge rod; 16. Sliding block; 17. Support plate; 181. Protrusion; 182. Fixed shaft; 183. Rotating sleeve shaft; 184. Limiting plate; 185. Inclined groove; 186. U-shaped frame; 187. Arc plate; 191. Arc guide groove; 192. Short rod; 193. Arc sliding plate; 194. Long rod; 195. Circular plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 - Figure 9 One embodiment of the present invention is a dust removal device for a wood cutting workshop, comprising: a dust collection box 1, a dust collector 2, the dust collector 2 being disposed on the right side of the dust collection box 1 and connected to the dust collection box 1 via a pipe; a suction pipe 3, the suction pipe 3 being fixedly installed on the top of the dust collector 2 and communicating with the wood cutting workshop; an exhaust device 4, the exhaust device 4 being fixedly installed on the surface of the dust collection box 1; a pulse cleaning device 5, the pulse cleaning device 5 being fixedly installed on the top of the inner wall of the dust collection box 1; a support frame 6 being fixedly installed on the inner wall of the dust collection box 1, a partition being fixedly installed on the surface of the support frame 6, a groove being formed on the surface of the support frame 6, a semi-circular block 7 being fixedly installed inside the groove, an annular slide rail 8 being fixedly installed at the bottom of the support frame 6, the annular slide rail 8 being driven by a motor, and a sealing element being provided at the output end of the annular slide rail 8 for sealing the bottom of the annular slide rail 8. The sealing element has a fixed plate 9 fixedly installed at the bottom. A rotating frame 10 is rotatably installed on the inner wall of the fixed plate 9. The rotating frame 10 has an exhaust hole inside, and the fixed plate 9 has an air outlet hole inside. The exhaust hole and the air outlet hole are connected. The air outlet hole is connected to the annular slide rail 8. The annular slide rail 8 is connected to the partition through a connecting pipe. A filter bag 91 is covered on the surface of the rotating frame 10. The filter bag 91 is tied to the surface of the rotating frame 10 with a cable tie. An L-shaped plate 11 is slidably installed on the surface of the fixed plate 9. A spiral rod 12 is fixedly installed on the surface of the L-shaped plate 11. The spiral rod 12 is spirally connected to the rotating frame 10. A universal wheel is provided at the top of the spiral rod 12. It moves outward through the support plate 17 to radially expand the filter bag 91, making it easier for sawdust and dust on the outer wall of the filter bag 91 to fall off. This prevents the filter bag 91 from being wrinkled and accumulating dust locally, thus avoiding the impact on the dust removal effect.

[0021] A sliding rod 13 is slidably installed on the inner wall of the rotating frame 10. A connecting plate 14 is fixedly installed on the surface of the rotating frame 10. A sliding block 16 is slidably installed on the top of the connecting plate 14. A hinge rod 15 is rotatably installed on the inner wall of the sliding rod 13. The end of the hinge rod 15 away from the sliding rod 13 is rotatably installed on the inner wall of the sliding block 16. A support plate 17 is fixedly installed on the surface of the sliding block 16. A first torsion spring is provided between the fixed plate 9 and the rotating frame 10. The rotating frame 10 is reset by the elastic force of the first torsion spring. A first spring is provided between the fixed plate 9 and the L-shaped plate 11. The L-shaped plate 11 is reset by the elastic force of the first spring. A second spring is provided between the connecting plate 14 and the sliding block 16. The sliding block 16 is reset by the elastic force of the second spring. A return spring is provided between the rotating frame 10 and the sliding rod 13. The sliding rod 13 is reset by the elastic force of the return spring.

[0022] In this embodiment, during operation: the dust generated in the wood cutting workshop is sucked into the suction pipe 3 by the dust collector 2, then enters the pipeline through the suction pipe 3, and finally the dust is discharged into the dust collection box 1. The dust is adsorbed by the filter bag 91. Air enters the air outlet inside the fixed plate 9 through the exhaust hole on the surface of the rotating frame 10, then enters the annular slide rail 8 through the air outlet, and then enters the partition above through the connecting pipe at the top of the annular slide rail 8. Finally, the air is discharged through the exhaust device 4. The operator can drive the annular slide rail 8 to slide by controlling the motor. The sliding of the annular slide rail 8 will cause the sealing component to slide, which will seal the bottom of the annular slide rail 8 to prevent dust from entering and affecting the normal operation of the equipment. The sliding of the sealing component will cause the fixed plate 9, filter bag 91 and rotating frame 10 to slide around the annular slide rail 8. By switching the position of the filter bag 91, the continuous impact of the incoming air on the same filter bag 91 is avoided, which will cause local overload and wear. Long-term impact will make it more likely to break than other filter bags 91, requiring frequent replacement. This affects the service life of the filter bag. At the same time, the sliding of the rotating frame 10 around the annular slide rail 8 will drive the L-shaped plate 11 and the spiral rod 12 to slide around the annular slide rail 8. During the sliding of the spiral rod 12 around the annular slide rail 8, it will contact the arc surface of the semi-circular block 7. The arc surface of the semi-circular block 7 will push the universal wheel and the spiral rod 12 downward. The downward movement of the spiral rod 12 will push the rotating frame 10 to rotate. The centrifugal force generated by the rotation of the rotating frame 10 will throw off the dust and impurities on the surface of the filter bag 91, improving the dust removal effect. At the same time, the downward movement of the spiral rod 12 will push the sliding rod 13 to move downward. The downward movement of the sliding rod 13 will drive the hinge rod 15 to rotate downward. The downward rotation of the hinge rod 15 will push the sliding block 16 and the support plate 17 to move away from the rotating frame 10. The outward movement of the support plate 17 will radially open the filter bag 91, making the filter bag 91 unfold. The wood chips and dust on the outer wall of the filter bag 91 are easier to fall off, avoiding the filter bag 91 from being wrinkled and accumulating dust and clumping in some areas, which would affect the dust removal effect.

[0023] Please see Figure 1 - Figure 9Based on the above embodiments, in another embodiment of the present invention, the rotating frame 10 is provided with a dust shaking device and a support device for dust removal. The dust shaking device includes a protrusion 181, a fixed shaft 182, a rotating sleeve shaft 183, and a limiting plate 184. The protrusion 181 is fixedly installed on the circumferential surface of the rotating frame 10, the fixed shaft 182 is fixedly installed on the bottom of the fixed plate 9, the rotating sleeve shaft 183 is rotatably installed on the circumferential surface of the fixed shaft 182, and two protrusions are provided on the circumferential surface of the rotating sleeve shaft 183. The limiting plate 184 is fixedly installed on the bottom of the fixed plate 9. The dust and impurities above the filter bag 91 are shaken off to prevent excessive dust from adhering to the filter bag 91. This would cause excessive impurities to cause poor adhesion when the filter bag 91 rotates to the pipe position, thus affecting the adsorption effect.

[0024] The connecting plate 14 has a sloping groove 185 on its surface, and the support plate 17 has a groove. An arc plate 187 is slidably installed on the inner wall of the groove. A U-shaped frame 186 is fixedly installed on the surface of the arc plate 187. The U-shaped frame 186 slides on the inner wall of the sloping groove 185. The arc plate 187 moves upward against the inner wall of the filter bag 91 to smooth out the wrinkles of the filter bag 91, preventing dust and impurities from getting stuck in the wrinkles of the filter bag 91 and affecting the dust removal effect.

[0025] A second torsion spring is provided between the rotating sleeve shaft 183 and the fixed shaft 182. The rotating sleeve shaft 183 is reset by the elastic force of the second torsion spring itself. The limiting plate 184 contacts the right convex plate. A third spring is provided between the groove and the arc plate 187. The arc plate 187 is reset by the elastic force of the third spring itself.

[0026] In this embodiment, during operation: the rotating frame 10 rotates, causing the protrusion 181 to rotate. During rotation, the protrusion 181 contacts the protruding plate on the surface of the rotating sleeve shaft 183. The right protruding plate is limited by the limiting plate 184. When the protrusion 181 rotates, it contacts the left protruding plate, causing vibration. The vibration of the rotating frame 10 causes the filter bag 91 to vibrate, shaking off the dust and impurities on the filter bag 91. This prevents excessive dust from adhering to the filter bag 91, which would cause poor adhesion and affect the adsorption effect when the filter bag 91 rotates to the pipe position. At the same time, when the support plate 17 moves away from the rotating frame 10... The movement of the arc plate 187 will cause it to move away from the rotating frame 10. The movement of the arc plate 187 away from the rotating frame 10 will cause the U-shaped frame 186 to move away from the rotating frame 10. The movement of the U-shaped frame 186 away from the rotating frame 10 will be squeezed by the inclined groove 185. The inclined groove 185 will squeeze the U-shaped frame 186 to move upward. The upward movement of the U-shaped frame 186 will cause the arc plate 187 to move upward. By the arc plate 187 sticking to the inner wall of the filter bag 91 and moving upward, the wrinkles of the filter bag 91 will be smoothed out, preventing dust and impurities from getting stuck in the wrinkles of the filter bag 91 and affecting the dust removal effect.

[0027] The support device includes an arc-shaped guide groove 191, a short rod 192, and an arc-shaped sliding plate 193. The arc-shaped guide groove 191 is formed on the inner wall of the groove. The arc-shaped sliding plate 193 is slidably mounted on the top of the arc-shaped plate 187. The short rod 192 is fixedly mounted on the surface of the arc-shaped sliding plate 193. The end of the short rod 192 away from the arc-shaped sliding plate 193 slides on the inner wall of the arc-shaped guide groove 191. By moving the arc-shaped sliding plate 193 toward the filter bag 91, the dust in the gap of the filter bag 91 is pushed outward, so that the impurities stuck on the filter bag 91 are pushed away, so as to prevent the impurities from getting stuck on the filter bag 91 and affecting the dust removal effect.

[0028] A long rod 194 is slidably installed on the inner wall of the rotating frame 10. A circular plate 195 is fixedly installed at the bottom of the long rod 194. The circular plate 195 moves downward to push the bottom of the filter bag 91 downward, so that the filter bag 91 is in a taut state. The sawdust and dust attached to the outer wall are more easily detached as a whole, and there is no dead corner to hide dust, thus improving the overall dust removal effect.

[0029] A No. 4 spring is installed between the curved slide plate 193 and the curved plate 187. The curved slide plate 193 is reset by the elastic force of the No. 4 spring. A No. 5 spring is installed between the rotating frame 10 and the long rod 194. The long rod 194 is reset by the elastic force of the No. 5 spring.

[0030] The upward movement of the arc-shaped plate 187 drives the arc-shaped sliding plate 193 to move upward. The upward movement of the arc-shaped sliding plate 193 drives the short rod 192 to move upward. During the upward movement, the short rod 192 slides along the arc-shaped guide groove 191. The reciprocating sliding of the short rod 192 along the arc-shaped guide groove 191 causes the arc-shaped sliding plate 193 to contact the filter bag 91 back and forth. The movement of the arc-shaped sliding plate 193 towards the filter bag 91 pushes the dust in the gaps of the filter bag 91 outward, removing the impurities stuck on the filter bag 91 to prevent impurities from getting stuck on the filter bag 91 and affecting the dust removal effect. At the same time, the downward movement of the sliding rod 13 pushes the long rod 194 downward. The downward movement of the long rod 194 drives the circular plate 195 downward. The downward movement of the circular plate 195 pushes the bottom of the filter bag 91 downward, so that the filter bag 91 is in a taut state. The sawdust and dust attached to the outer wall are more easily removed as a whole, eliminating dead corners where dust is trapped and improving the overall dust removal effect.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A dust removal device for a wood cutting workshop, comprising: Dust collector (1), characterized in that: A dust collector (2) is located on the right side of the dust collection box (1), and the dust collector (2) is connected to the dust collection box (1) by a pipe; The suction pipe (3) is fixedly installed on the top of the dust collector (2) and is connected to the wood cutting workshop; Exhaust equipment (4), which is fixedly installed on the surface of dust collection box (1); A pulse cleaning device (5) is installed on the top of the inner wall of the dust collector (1); A support frame (6) is fixedly installed on the inner wall of the dust collector (1). A partition is fixedly installed on the surface of the support frame (6). A groove is opened on the surface of the support frame (6). A semi-circular block (7) is fixedly installed inside the groove. An annular slide rail (8) is fixedly installed at the bottom of the support frame (6). The annular slide rail (8) is driven by a motor. A sealing element is provided at the output end of the annular slide rail (8). The sealing element is used to seal the bottom of the annular slide rail (8). A fixing plate (9) is fixedly installed at the bottom of the sealing element. A rotating frame (10) is rotatably installed on the inner wall of the fixing plate (9). An exhaust hole is provided inside the fixed plate (9), and an air outlet is provided inside the fixed plate (9). The exhaust hole is connected to the air outlet. The annular slide rail (8) is connected to the partition through a connecting pipe. The air outlet is connected to the annular slide rail (8). A filter bag (91) is fitted on the surface of the rotating frame (10). The filter bag (91) is tied to the surface of the rotating frame (10) with a cable tie. An L-shaped plate (11) is slidably installed on the surface of the fixed plate (9). A spiral rod (12) is fixedly installed on the surface of the L-shaped plate (11). The spiral rod (12) is spirally connected to the rotating frame (10). A universal wheel is provided at the top of the spiral rod (12).

2. The dust removal device for a wood cutting workshop according to claim 1, characterized in that, A sliding rod (13) is slidably installed on the inner wall of the rotating frame (10). A connecting plate (14) is fixedly installed on the surface of the rotating frame (10). A sliding block (16) is slidably installed on the top of the connecting plate (14). A hinge rod (15) is rotatably installed on the inner wall of the sliding rod (13). The end of the hinge rod (15) away from the sliding rod (13) is rotatably installed on the inner wall of the sliding block (16). A support plate (17) is fixedly installed on the surface of the sliding block (16). A first torsion spring is provided between the fixed plate (9) and the rotating frame (10). A first spring is provided between the fixed plate (9) and the L-shaped plate (11). A second spring is provided between the connecting plate (14) and the sliding block (16). A reset spring is provided between the rotating frame (10) and the sliding rod (13). A dust shaking device and a support device are provided inside the rotating frame (10).

3. A dust removal device for a wood cutting workshop according to claim 2, characterized in that, The dust-removing device includes a protrusion (181), a fixed shaft (182), a rotating sleeve shaft (183), and a limiting plate (184). The protrusion (181) is fixedly installed on the circumferential surface of the rotating frame (10). The fixed shaft (182) is fixedly installed at the bottom of the fixed plate (9). The rotating sleeve shaft (183) is rotatably installed on the circumferential surface of the fixed shaft (182). The circumferential surface of the rotating sleeve shaft (183) is provided with two protrusions. The limiting plate (184) is fixedly installed at the bottom of the fixed plate (9).

4. A dust removal device for a wood cutting workshop according to claim 3, characterized in that, The connecting plate (14) has a sloping groove (185) on its surface, and the support plate (17) has a groove on its surface. An arc plate (187) is slidably installed on the inner wall of the groove. A U-shaped frame (186) is fixedly installed on the surface of the arc plate (187). The U-shaped frame (186) slides on the inner wall of the sloping groove (185).

5. A dust removal device for a wood cutting workshop according to claim 4, characterized in that, A second torsion spring is provided between the rotating sleeve shaft (183) and the fixed shaft (182), the limiting plate (184) contacts the right side convex plate, and a third spring is provided between the groove and the arc plate (187).

6. A dust removal device for a wood cutting workshop according to claim 5, characterized in that, The support device includes an arc-shaped guide groove (191), a short rod (192), and an arc-shaped sliding plate (193). The arc-shaped guide groove (191) is formed on the inner wall of a groove. The arc-shaped sliding plate (193) is slidably mounted on the top of the arc-shaped plate (187). The short rod (192) is fixedly mounted on the surface of the arc-shaped sliding plate (193). The end of the short rod (192) away from the arc-shaped sliding plate (193) slides on the inner wall of the arc-shaped guide groove (191).

7. A dust removal device for a wood cutting workshop according to claim 6, characterized in that, A long rod (194) is slidably installed on the inner wall of the rotating frame (10), and a circular plate (195) is fixedly installed at the bottom of the long rod (194).

8. A dust removal device for a wood cutting workshop according to claim 7, characterized in that, A No. 4 spring is provided between the arc-shaped sliding plate (193) and the arc-shaped plate (187), and a No. 5 spring is provided between the rotating frame (10) and the long rod (194).

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