Efficient dust removal carding machine

Abstract

The utility model discloses an efficient dust removal carding machine, and belongs to the technical field of carding machines. Comprising a carding machine body; an air suction port and an air outlet are formed in the dust collection structure, and the air suction port communicates with the upper end of the carding machine body; the dust removal box is communicated with the air outlet, a mounting hole communicated with the outside is formed in the upper end of the dust removal box, and a drain outlet is formed in the lower part; the filter screen is mounted in the mounting hole; the cleaning structure forms a cleaning surface in contact with the lower surface of the filter screen, and the cleaning surface moves relative to the filter screen; the water spraying structure is located in the dust removal box, a first spraying face and a second spraying face are formed, the first spraying face surrounds the air outlet, and the second spraying face is located on one side of the filter screen and obliquely faces the lower portion of the filter screen. The efficient dust removal carding machine has the beneficial effects that the dust removal efficiency of the dust removal box is improved, the filter screen is kept dry, the cleaning structure is easy to clean, and the air filtering efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of carding machines, and in particular to a high-efficiency dust-removing carding machine. Background Art

[0002] Carding machines are used to process cotton and chemical fibers and are a type of textile machinery. Carding is a key step in the spinning process. The carding process precedes the blower and is followed by the draw frame (in the carding process) or the lap frame (in the combing process).

[0003] Currently, common dust removal carding machines spray water mist over a wide area within the dust collection chamber, causing it to bind to the lint. This results in low efficiency. Once the filter is wetted by the spray, the lint easily adheres to it, making it difficult for the cleaning device to clean the filter, thus affecting filtration efficiency. Summary of the Invention

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a high-efficiency dust-removing carding machine, including: a carding machine body; a dust suction structure, forming an air intake and an air outlet, and the air intake is connected to the upper end of the carding machine body; a dust removal box, connected to the air outlet, the upper end of the dust removal box is formed with a mounting hole connected to the outside world, and the lower part is formed with a sewage outlet; a filter, installed in the mounting hole; a cleaning structure, forming a cleaning surface in contact with the lower surface of the filter, and the cleaning surface moves relative to the filter; a water spraying structure, located in the dust removal box, forming a first spraying surface and a second spraying surface, the first spraying surface surrounds the air outlet, and the second spraying surface is located on one side of the filter and inclined toward the bottom of the filter.

[0006] Furthermore, the water spraying structure includes a water tank, a water pipe, a connecting plate, an annular nozzle and a rectangular nozzle; the water tank is located above the dust removal box, the connecting plate, the annular nozzle and the rectangular nozzle are all located in the dust removal box, and the water tank is connected to the connecting plate through the water pipe passing through the upper end of the dust removal box; the annular nozzle and the rectangular nozzle are both detachably connected to the connecting plate; the annular nozzle forms the first spraying surface, and the rectangular nozzle forms the second spraying surface.

[0007] Furthermore, when the water pressure in the connecting plate decreases, the annular nozzle and the rectangular nozzle retract, reducing the areas of the first and second spraying surfaces; when the water pressure in the connecting plate increases, the annular nozzle and the rectangular nozzle expand, increasing the areas of the first and second spraying surfaces. Furthermore, two mounting holes and two filters are provided, and the mounting holes and filters are connected in a one-to-one correspondence. The cleaning structure includes a power supply, a magnetic track, a slider, and a brush plate. The surface of the brush plate that contacts the lower surface of the filter forms the cleaning surface, and the length of the cleaning surface is the same as the length of the filter. The brush plate is connected to the slider, which cooperates with the magnetic track. The power supply causes the slider to move along the length of the magnetic track, and the slider's movement distance covers the width of the filter. The magnetic track is connected to the upper surface of the interior of the dust removal box.

[0008] Furthermore, a disassembly hole is formed on the side wall of the dust removal box facing the length direction of the magnetic rail, and the projection of the disassembly hole in the length direction of the magnetic rail surrounds the projection of the slider and the brush plate in the length direction of the magnetic rail; a card plate is provided in the disassembly hole, and the card plate is detachably connected to the disassembly hole.

[0009] Furthermore, the two filters are symmetrically arranged on both sides of the air outlet, and four limiting structures are provided on the magnetic track, two of which are respectively located at the two ends of the magnetic track; the other two limiting structures are located in the middle of the magnetic track, and can be offset against the slider to limit the brush plate to move as far as between the filter and the air outlet.

[0010] Furthermore, four sockets are formed on the magnetic rail, and their positions correspond one-to-one to the four limiting structures respectively; the limiting structure includes a card block and a plug-in, and the card block forms a through hole; the plug-in includes a rotating rod and a rotating block, and the rotating rod is fixed to the middle part of the rotating block, and the diameter of the rotating rod is larger than the width of the rotating block; the socket includes a rotating cavity and a straight-insert cavity, and the rotating cavity is located above the straight-insert cavity and is connected to the straight-insert cavity, and the straight-insert cavity has the same shape as the through hole and is connected; the rotating cavity is disc-shaped, and the projection of the straight-insert cavity and the through hole on the ground is the same as the projection of the card block on the ground; the card block and the rotating rod are slidingly connected to the through hole and the straight-insert cavity, and the card block is rotatably connected to the rotating cavity.

[0011] Furthermore, the dust collection structure includes a dust collection hood, a first connecting pipe, a fan and a second connecting pipe. The lower end of the dust collection hood forms an air inlet, the dust collection hood is connected to the first connecting pipe, the first connecting pipe, the fan and the second connecting pipe are connected in sequence, and the end of the second connecting pipe away from the fan forms an air outlet.

[0012] The beneficial effects of this application are:

[0013] The upper end of the dust box forms a mounting hole for the filter. The air outlet is surrounded by a first spraying surface of the water spray mechanism, which sprays water diagonally downward from the filter. The second spraying surface, located to one side of the filter, sprays water diagonally downward from the filter. The cleaning surface of the cleaning mechanism contacts and moves relative to the lower surface of the filter, so that upon entering the dust box from the air outlet, most of the lint is impacted by the surrounding water flow from the first spraying surface and falls to the bottom of the dust box. Before reaching the filter, some of the remaining lint is impacted by the water flow from the second spraying surface and falls to the bottom of the dust box. A small amount of lint not wetted by the water flow adheres to the dry filter at the upper end of the dust box, where it is swept off by the cleaning mechanism and impacted by the water flow from the second spraying surface and falls to the bottom of the dust box. Finally, all the lint is discharged from the drain outlet with the water flow. This improves the dust removal efficiency of the dust box, keeps the filter dry, and makes the cleaning mechanism easier to clean, thereby improving air filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application and to make other features, objects, and advantages of this application more apparent. The accompanying drawings and descriptions of the exemplary embodiments of this application are intended to explain this application and do not constitute an improper limitation on this application.

[0015] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0016] In the attached figure:

[0017] FIG1 is an overall schematic diagram according to an embodiment of the present application;

[0018] FIG2 is a schematic structural diagram of a portion of the embodiment, mainly showing the structure of the dust collection structure;

[0019] FIG3 is a schematic structural diagram of a portion of the embodiment, mainly showing the structure of the water spray structure;

[0020] FIG4 is a schematic structural diagram of a portion of the embodiment, mainly showing the components inside the dust removal box;

[0021] FIG5 is a schematic structural diagram of a portion of the embodiment, mainly showing the structures of the annular nozzle and the rectangular nozzle;

[0022] FIG6 is a schematic structural diagram of a portion of the embodiment, mainly showing the connection relationship between the magnetic track, the slider and the brush plate;

[0023] FIG7 is a schematic structural diagram of a portion of the embodiment, mainly showing the installation relationship between the limit structure, the magnetic rail and the slider;

[0024] FIG8 is a schematic structural diagram of a portion of the embodiment, mainly showing the connection relationship between the card block and the plug-in;

[0025] FIG9 is a schematic structural diagram of a portion of the embodiment, mainly showing the structure of the plug-in;

[0026] FIG10 is a schematic structural diagram of a portion of the embodiment, mainly showing the cross-sectional structure of the jack.

[0027] Reference numerals:

[0028] 1. Carding machine body; 2. Dust collection structure; 3. Dust collection hood; 4. First connecting pipe; 5. Fan; 6. Second connecting pipe; 7. Dust removal box; 8. Filter; 9. Cleaning structure; 10. Water spray structure; 11. First spraying surface; 12. Second spraying surface; 13. Drain outlet; 14. Water tank; 15. Water pipe; 16. Connecting plate; 17. Annular nozzle; 18. Rectangular nozzle; 19. Power supply; 20. Magnetic track; 21. Slider; 22. Brush plate; 23. Card; 24. Limiting structure; 25. Block; 26. Socket; 27. Plug-in; 28. Rotating rod; 29. ​​Rotating block; 30. Rotating cavity; 31. Insert cavity; 32. Through hole. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure. It should also be noted that, for ease of description, the drawings only show portions relevant to the relevant inventions. The embodiments and features of the embodiments of the present disclosure may be combined with each other unless there is a conflict. It should be noted that the terms "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules, or units and are not intended to limit the order or interdependence of the functions performed by these devices, modules, or units. It should be noted that the modifiers "one" and "a plurality" mentioned in the present disclosure are illustrative and non-restrictive. Those skilled in the art should understand that unless the context clearly indicates otherwise, they should be understood to mean "one or more." The following describes the present disclosure in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] Referring to Figures 1-10, a high-efficiency dust-removing carding machine comprises: a carding machine body 1. During operation, a large amount of short lint is generated. The short lint accumulates on the carding machine body 1 for a long time, which easily increases the failure rate of the carding machine body 1 and reduces its service life. A dust suction structure 2 forms an air intake and an air outlet. The air intake is connected to the upper end of the carding machine body 1 and is used to extract the short lint in the carding machine body 1 from the air intake. A dust box 7 is connected to the air outlet. The short lint sucked out of the carding machine body 1 enters the dust box 7 through the air outlet. A mounting hole connected to the outside is formed at the upper end of the dust box 7. A filter 8 is installed in the mounting hole and is used to discharge the air filtered by the dust box 7 to the outside to prevent the dust box 7 from being damaged due to excessive pressure caused by excessive air inside. The cleaning structure 9 forms a cleaning surface that contacts the lower surface of the filter 8. The cleaning surface moves relative to the filter 8 to scrape off any small amounts of lint adhering to the filter 8. The water spraying structure 10, located within the dust box 7, forms a first spraying surface 11 and a second spraying surface 12. The first spraying surface 11 surrounds the air outlet and is designed to spray water around the air outlet as soon as lint enters the dust box 7 from the air outlet, thereby diverting as much of the lint as possible to the bottom of the dust box 7. The second spraying surface 12 is located to one side of the filter 8 and is angled downward. It is designed to form a water curtain between the filter 8 and the bottom of the dust box 7. Some lint passing through this water curtain is directly impacted onto the bottom of the dust box 7. A small amount of lint adhering to the filter 8 is also scraped off by the cleaning structure 9 and impacted by the water curtain onto the bottom of the dust box 7. A sewage outlet 13 is formed at the lower portion of the dust removal box 7. When there is too much waste water in the dust removal box 7, the sewage outlet 13 is opened to discharge the waste water.

[0031] Specifically, the water spray structure 10 includes a water tank 14, a water pipe 15, a connecting plate 16, an annular nozzle 17, and a rectangular nozzle 18. The water tank 14 is located above the dust removal box 7 and is fixedly connected to the dust removal box 7 via bolts. The connecting plate 16, annular nozzle 17, and rectangular nozzle 18 are all located within the dust removal box 7. The connecting plate 16 is welded to the upper surface of the dust removal box 7. The upper end of the water pipe 15 is connected to the lower end of the water tank 14 via bolts. The lower end of the water pipe 15 passes through the upper end of the dust removal box 7 and is fixedly connected to the connecting plate 16 via bolts. Both the annular nozzle 17 and the rectangular nozzle 18 have protrusions, and the connecting plate 16 has slots that mate with the protrusions. The connection between the protrusions and the slots allows for a removable connection between the annular nozzle 17 and the rectangular nozzle 18 and the connecting plate 16, facilitating replacement of the annular nozzle 17 and the rectangular nozzle 18 if damaged. The nozzle opening of the annular nozzle 17 forms the first spraying surface 11, while the nozzle opening of the rectangular nozzle 18 forms the second spraying surface 12. Water from the upper water tank 14 flows naturally through the water pipe 15 and the connecting plate 16 to the annular nozzle 17 and the rectangular nozzle 18 under the influence of gravity, saving power and reducing energy consumption.

[0032] Specifically, the annular nozzle 17 and the rectangular nozzle 18 are both made of a resilient material, such as rubber. When the water pressure in the connecting plate 16 decreases, the annular nozzle 17 and the rectangular nozzle 18 contract, reducing the areas of the first and second spraying surfaces 11, 12. As the areas of the first and second spraying surfaces 11, 12 decrease, the water pressure of the water flow sprayed by the two nozzles increases, compensating for the reduced spray range caused by the reduced water pressure at the source and maintaining the water flow's impact efficiency on the short lint. When the water pressure in the connecting plate 16 increases, the annular nozzle 17 and the rectangular nozzle 18 expand, increasing the areas of the first and second spraying surfaces 11, 12. As the areas of the first and second spraying surfaces 11, 12 increase, the water pressure of the water flow sprayed by the two nozzles decreases, preventing damage to the water spray structure 10 caused by excessive water pressure.

[0033] Specifically, two mounting holes and two filter screens 8 are provided to increase the filtration area and improve air filtration efficiency. The mounting holes and filter screens 8 are connected in a one-to-one correspondence via bolts. The cleaning structure 9 comprises a power supply 19, a magnetic track 20, a slider 21, and a brush plate 22. The surface of the brush plate 22 that contacts the lower surface of the filter screen 8 forms a cleaning surface, the length of which is the same as that of the filter screen 8. The brush plate 22 is adhesively bonded to the slider 21. The slider 21 engages and slides with the magnetic track 20, which guides the slider 21. Power from the power supply 19 to the magnetic track 20 creates a magnetic field, causing the slider 21 to move along the length of the track 20. The slider's movement covers the width of the filter screen 8, ensuring that the entire filter screen 8 is cleaned. The magnetic track 20 is welded to the upper surface of the dust removal box 7.

[0034] Specifically, removal holes are formed on both sidewalls of the dust box 7 that the magnetic track 20 faces in its longitudinal direction. The projection of the removal holes along the length of the magnetic track 20 surrounds the projections of the slider 21 and the brush plate 22 along the length of the magnetic track 20. This allows the slider 21 and the brush plate 22 to be removed from the dust box 7 through the removal holes when they move along the magnetic track 20 to the side of the removal holes, thereby facilitating replacement or maintenance. A retaining plate 23 is provided in the removal holes and is detachably connected to the removal holes. This retaining plate 23 is used to keep the dust box 7 closed when the removal holes are not in use, preventing short lint from escaping the dust box 7.

[0035] Specifically, the two filters 8 are symmetrically arranged on both sides of the air outlet, and four limiting structures 24 are set on the magnetic track 20. Two limiting structures 24 are respectively located at the two ends of the magnetic track 20 and abut the side walls of the dust removal box 7. The other two limiting structures 24 are located in the middle of the magnetic track 20. When the slider 21 moves from the side wall of the dust removal box 7 to the middle of the dust removal box 7, it stops when it contacts the limiting structure 24 in the middle of the magnetic track 20, which is used to limit the brush plate 22 to move as far as between the filter 8 and the air outlet, so that the brush plate 22 only moves within the coverage range of the filter 8, preventing the slider 21 from moving too far and doing useless work. The setting of the limiting structure 24 improves the cleaning efficiency of the brush plate 22.

[0036] Specifically, four sockets 26 are formed on the magnetic track 20, corresponding one-to-one with the four retaining structures 24, for connection with the retaining structures 24. The retaining structures 24 include a block 25 and an insert 27. The block 25 forms a through-hole 32. The insert 27 includes a rotating rod 28 and a rotating block 29. The rotating rod 28 is welded to the center of the rotating block 29. The socket 26 includes a rotating cavity 30 and a straight-insert cavity 31. The rotating cavity 30 is located above and connected to the straight-insert cavity 31. The straight-insert cavity 31 has the same shape as the through-hole 32 and is connected to it. The rotating cavity 30 is disc-shaped. The projection of the insert cavity 31 and through-hole 32 on the ground is the same as that of the clamping block 25. The clamping block 25 and rotating rod 28 are slidably connected to the through-hole 32 and the insert cavity 31, allowing the plug-in 27 to be inserted into the rotating cavity 30 through the through-hole 32 and the insert cavity 31. Because the clamping block 25 is rotatably connected to the rotating cavity 30, the plug-in 27 inserted into the rotating cavity 30 is locked by the rotating cavity 30 after a 90-degree rotation, preventing the plug-in 27 from falling. The diameter of the rotating rod 28 is larger than the width of the rotating block 29 to prevent shaking when the clamping block 25 is fixed to the magnetic track 20. The clamping block 25 is made of rubber to provide cushioning when the slider 21 impacts the clamping block 25.

[0037] Specifically, the dust collection structure 2 includes a dust hood 3, a first connecting pipe 4, a fan 5, and a second connecting pipe 6. The dust hood 3 has an air inlet at its lower end, which is bolted to the upper end of the carding machine body 1. The dust hood 3 is welded and fixedly connected to the first connecting pipe 4, which is bolted to the air inlet of the fan 5. The second connecting pipe 6 is bolted to the air outlet of the fan 5. The end of the second connecting pipe 6, facing away from the fan 5, forms an air outlet, which is connected to the dust removal box 7. When the fan 5 is in operation, it provides air pressure, drawing short lint from the carding machine body 1 into the air inlet and discharging it into the dust removal box 7 through the air outlet.

[0038] Operational process: Turn on fan 5 and open water tank 14 to start supplying water. Fan 5 operates to provide air pressure, drawing short lint from the carding machine body 1 into the air inlet. The short lint passes through the first connecting pipe 4, fan 5, and second connecting pipe 6, and is discharged from the air outlet into the dust removal box 7. Water from the water tank 14 flows through the water pipe 15 and connecting plate 16, entering the annular nozzle 17 and rectangular nozzle 18. Part of the water flows from the first spraying surface 11 around the air outlet, while the other part flows from the second spraying surface 12 toward the filter 8 at an angle downward. Most of the lint entering the dust box 7 from the air outlet is wetted by the water sprayed from the first spraying surface 11 and falls to the bottom of the dust box 7. Some of the lint is wetted by the water sprayed from the second spraying surface 12 and also falls to the bottom of the dust box 7. The remaining lint is not wetted and is dispersed onto the filter 8 by the airflow from the fan 5. When the power supply 19 is activated, the brush plate 22 is driven by the magnetic track 20 and the slider 21 to scrape the lower surface of the filter 8. The lint adhering to the filter 8 is scraped off and encounters the water sprayed from the second spraying surface 12, becoming wet and falling to the bottom of the dust box 7.

[0039] When there is too much waste water in the dust removal box 7, the drain port 13 is opened to discharge the waste water.

[0040] When the slider 21 and / or the brush plate 22 need to be replaced or cleaned, the card plate 23 is removed, the plug-in 27 is rotated 90 degrees, and is pulled out from the insertion hole 26 and the through hole 32 in sequence. Then, the card block 25 is removed from the removal hole along the length direction of the magnetic track 20. The slider 21 and the brush plate 22 can be removed from the removal hole along the length direction of the magnetic track 20.

[0041] The above descriptions are merely some preferred embodiments of the present disclosure and illustrate the underlying technical principles. Those skilled in the art should understand that the scope of the invention encompassed by the embodiments of the present disclosure is not limited to technical solutions formed by specific combinations of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the aforementioned inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A high-efficiency dust removal carding machine, characterized in that: include: A carding machine body; a dust suction structure forming an air intake and an air outlet, the air intake being connected to the upper end of the carding machine body; a dust removal box being connected to the air outlet, a mounting hole connected to the outside being formed at the upper end of the dust removal box, and a sewage outlet being formed at the lower part; a filter being installed in the mounting hole; a cleaning structure forming a cleaning surface in contact with the lower surface of the filter, the cleaning surface moving relative to the filter; a water spraying structure located in the dust removal box, forming a first spraying surface and a second spraying surface, the first spraying surface surrounding the air outlet, the second spraying surface being located on one side of the filter and inclined toward the bottom of the filter.

2. The high-efficiency dust removal carding machine according to claim 1, characterized in that: The water spraying structure includes a water tank, a water pipe, a connecting plate, an annular nozzle and a rectangular nozzle; the water tank is located above the dust removal box, the connecting plate, the annular nozzle and the rectangular nozzle are all located in the dust removal box, and the water tank is connected to the connecting plate through the water pipe passing through the upper end of the dust removal box; the annular nozzle and the rectangular nozzle are both detachably connected to the connecting plate; the annular nozzle forms the first spraying surface, and the rectangular nozzle forms the second spraying surface.

3. The high-efficiency dust removal carding machine according to claim 2, characterized in that: When the water pressure in the connecting plate decreases, the annular nozzle and the rectangular nozzle contract, thereby reducing the areas of the first spraying surface and the second spraying surface; when the water pressure in the connecting plate increases, the annular nozzle and the rectangular nozzle expand, thereby increasing the areas of the first spraying surface and the second spraying surface.

4. The high-efficiency dust removal carding machine according to any one of claims 1 to 3, characterized in that: Two mounting holes and two filters are provided, and the mounting holes and the filters are connected one-to-one; the cleaning structure includes a power supply, a magnetic rail, a slider and a brush plate, the surface of the brush plate contacting the lower surface of the filter forms the cleaning surface, and the length of the cleaning surface is the same as the length of the filter; the brush plate is connected to the slider, and the slider cooperates with the magnetic rail, and the power supply causes the slider to move along the length direction of the magnetic rail, and the movement distance of the slider covers the width of the filter; the magnetic rail is connected to the upper surface inside the dust removal box.

5. The high-efficiency dust removal carding machine according to claim 4, characterized in that: A disassembly hole is formed on the side wall of the dust removal box facing the length direction of the magnetic rail, and the projection of the disassembly hole in the length direction of the magnetic rail surrounds the projection of the slider and the brush plate in the length direction of the magnetic rail; a card plate is set in the disassembly hole, and the card plate is detachably connected to the disassembly hole.

6. The high-efficiency dust removal carding machine according to claim 4, characterized in that: The two filters are symmetrically arranged on both sides of the air outlet. Four limiting structures are set on the magnetic track, two of which are located at both ends of the magnetic track respectively; the other two limiting structures are located in the middle of the magnetic track and can be against the slider to limit the brush plate to move as far as between the filter and the air outlet.

7. The high-efficiency dust removal carding machine according to claim 6, characterized in that: Four sockets are formed on the magnetic track, and their positions correspond one-to-one to the four limiting structures respectively; the limiting structure includes a card block and a plug-in, and the card block forms a through hole; the plug-in includes a rotating rod and a rotating block, and the rotating rod is fixed to the middle part of the rotating block, and the diameter of the rotating rod is larger than the width of the rotating block; the socket includes a rotating cavity and a straight-insert cavity, and the rotating cavity is located above the straight-insert cavity and is connected to the straight-insert cavity, and the straight-insert cavity has the same shape as the through hole and is connected; the rotating cavity is disc-shaped, and the projection of the straight-insert cavity and the through hole on the ground is the same as the projection of the card block on the ground; the card block and the rotating rod are slidably connected to the through hole and the straight-insert cavity, and the card block is rotatably connected to the rotating cavity.

8. The high-efficiency dust removal carding machine according to claim 5 or 6, characterized in that: The dust collection structure includes a dust collection hood, a first connecting pipe, a fan and a second connecting pipe. The lower end of the dust collection hood forms an air inlet, the dust collection hood is connected to the first connecting pipe, the first connecting pipe, the fan and the second connecting pipe are connected in sequence, and the end of the second connecting pipe away from the fan forms an air outlet.

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