Dust removal mechanism of carding machine

By setting two sealing mechanisms and two filters in the card machine dust removal mechanism, efficient cleaning of the filter is achieved, and the shutdown problem caused by blockage of dust removal mechanism in the prior art is solved, and production efficiency is improved.

CN222427448UActive Publication Date: 2025-02-07HEBEI BAIFENG SEWING THREAD CO LTD
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Patent Information

Application Number
CN202420520128.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-02-07
Estimated Expiration
2034-03-18

AI Technical Summary

Technical Problem

After using the dust removal mechanism of the existing carding machine for a period of time, the screen is blocked due to the wool and dust, and it needs to be shut down for manual disassembly and cleaned, which is time-consuming and labor-intensive and affects production efficiency.

Method used

A card machine dust removal mechanism is designed, including a dust removal box, a first drive motor, a filter mesh and a fan blade, two closure mechanisms and two filter mesh are provided, and one of the filter mesh is closed and cleaned through the closure mechanism to avoid cleaning. The impurities underneath are adsorbed by the filter again, and the other filter can work normally to adsorb impurities.

Benefits of technology

The filter screen is cleaned through the closure mechanism to avoid impurities being adsorbed again, improve the filter cleaning efficiency, reduce downtime, and improve production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carding machine dust removal mechanism which comprises a dust removal box, a first driving motor, a filter screen, fan blades, a sealing mechanism and a cleaning mechanism, an air inlet is formed in the bottom of the dust removal box, an air outlet is formed in the top of the dust removal box, the filter screen is installed in the dust removal box, the first driving motor drives the fan blades to rotate, and a partition plate is fixed in the dust removal box. Filter screens are arranged on two sides of the partition plate; the sealing mechanism comprises a left shell, a right shell, an upper-layer rotating shaft, an upper-layer sealing plate, a lower-layer rotating shaft, a lower-layer sealing plate, an upper-layer baffle and a lower-layer baffle. The sealing mechanism can form a sealed space wrapping the filter screen. By arranging the two sealing mechanisms and the two filter screens, one filter screen can be sealed and cleaned through the sealing mechanisms, so that no pressure difference exists between the upper part and the lower part of the filter screen, and cleaned impurities are prevented from being adsorbed by the filter screen again; meanwhile, the other filter screen can work normally, impurities are adsorbed, shutdown is avoided, and the cleaning efficiency of the filter screens can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cotton carding machines, in particular to a dust removal mechanism for cotton carding machines. Background Art

[0002] When the carding machine is in operation, a large amount of short fluff will be generated due to the need to comb the cotton fluff. These short fluffs are easy to float in the working space, causing damage to the operators and equipment. In addition, the short fluffs floating around in the workshop will also cause environmental pollution and safety hazards. Therefore, they need to be cleaned by a dust removal mechanism.

[0003] At present, the dust removal mechanism of the existing carding machine generally generates negative pressure suction inside the carding machine by connecting the negative pressure pipe to absorb the short lint impurities, and installs a filter in the negative pressure pipe, and the short lint is blocked on the filter. However, after the screen has been used for a period of time, the lint and dust will cause the screen to be blocked, and the machine needs to be stopped and the screen needs to be manually disassembled and cleaned, which is time-consuming and labor-intensive, affecting production efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a dust removal mechanism for a carding machine to address the above technical issues.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a dust removal mechanism for a cotton carding machine, including a dust removal box, a first drive motor, a filter screen and fan blades, the bottom of the dust removal box is provided with an air inlet, the top of the dust removal box is provided with an exhaust port, the first drive motor is fixedly connected to the dust removal box, the filter screen is installed in the dust removal box, the first drive motor drives the fan blades to rotate, a partition is fixed in the dust removal box, and filter screens are provided on both sides of the partition; it also includes a closing mechanism corresponding to the filter screen one by one, the closing mechanism includes a left shell body, a right shell body, an upper rotating shaft, an upper sealing plate, a lower rotating shaft, a lower sealing plate, an upper baffle and a lower baffle, the left shell body and the right shell body are respectively located in the dust removal box Both sides are connected with the dust removal box, the upper baffle plate and the lower baffle plate are fixedly installed on the inner wall of the dust removal box, and multiple upper rotating shafts and multiple lower rotating shafts are rotatably installed in the dust removal box, the upper rotating shafts are fixedly installed with upper sealing plates, and the lower rotating shafts are fixedly installed with lower sealing plates, the upper rotating shafts, the upper sealing plates and the upper baffle plates are all located above the filter, and the left shell body, the right shell body, the lower rotating shaft, the lower sealing plate and the lower baffle plate are all located below the filter; when the upper sealing plate and the lower sealing plate are in a horizontal posture, the left shell body, the right shell body, the upper sealing plates, the lower sealing plates, the upper baffle plate and the lower baffle plate and the partition plate together form a closed space covering the filter.

[0006] Optionally, it also includes a cleaning mechanism corresponding to the closing mechanism one by one, the cleaning mechanism including a first mounting seat, a second drive motor, a screw rod, a nut pair, a polished rod, and a cleaning brush, the first mounting seat being fixedly connected to the outer wall of the dust removal box, the second drive motor being fixedly mounted on the first mounting seat, one end of the screw rod being rotatably connected to the left shell body, the other end of the screw rod being connected to the right shell body, one end of the polished rod being fixedly connected to the left shell body, the other end of the polished rod being fixedly connected to the right shell body, the nut pair being threadedly connected to the screw rod, the nut pair being slidably connected to the polished rod, the cleaning brush being fixedly connected to the nut pair, the second drive motor being transmission-connected to the screw rod, the cleaning brush being accommodated in the left shell body and the right shell body, and the cleaning brush being contact-matched with the bottom end of the filter screen.

[0007] Optionally, a discharge port is provided at the bottom of the right shell body, and a baffle plate for closing the discharge port is hingedly provided at the bottom of the right shell body, and the baffle plate is magnetically connected to the right shell body.

[0008] Optionally, the closing mechanism also includes an upper gear, a lower gear, an upper synchronous pulley, a lower synchronous pulley and a synchronous transmission belt. The upper gears are installed on the upper rotating shaft, the lower gears are installed on the lower rotating shaft, the upper gears are meshingly connected, and the lower gears are meshingly connected; an upper synchronous pulley is installed on one of the upper rotating shafts, a lower synchronous pulley is installed on one of the lower rotating shafts, and the upper synchronous pulley and the lower synchronous pulley are connected via a synchronous transmission belt.

[0009] Optionally, the closing mechanism also includes a second mounting seat, a third drive motor and a driving gear, the second mounting seat is fixedly connected to the outer wall of the dust removal box, the third drive motor is fixedly mounted on the second mounting seat, and a driving gear is installed at the output end of the third drive motor, and the driving gear is meshed and connected with one of the upper gears or the lower gears.

[0010] Optionally, a second rotating shaft is rotatably installed in the dust removal box, the fan blades are fixedly installed on the second rotating shaft, and the first drive motor is transmission-connected to the second rotating shaft via a coupling.

[0011] Optionally, elastic sealing strips are installed on the outer edges of the upper sealing plate and the lower sealing plate.

[0012] The beneficial effects of the technical solution are as follows: by setting up two closing mechanisms and two filter screens, one of the filter screens can be closed and cleaned through the closing mechanism, so that there is no pressure difference between the upper and lower parts of the filter screen, thereby preventing the impurities that have been cleaned from being adsorbed by the filter screen again; at the same time, the other filter screen can work normally, adsorb impurities, avoid shutdown, and improve the filter cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a dust removal mechanism of a carding machine according to an embodiment;

[0014] Figure 2A state diagram of a dust removal mechanism of a carding machine in one embodiment when cleaning a filter screen;

[0015] Figure 3 for Figure 1 Sectional view along line AA;

[0016] Figure 4 for Figure 1 Sectional view along line BB;

[0017] Figure 5 It is a left side view of a dust removal mechanism of a carding machine according to one embodiment;

[0018] Figure 6 It is a right side view of the dust removal mechanism of a carding machine according to one embodiment;

[0019] Figure 7 A partial schematic diagram of a cleaning mechanism of an embodiment;

[0020] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0021] In the figure, 1, dust box; 11, air inlet; 12, air outlet; 13, partition; 2, first drive motor; 3, filter; 4, fan blade; 5, closing mechanism; 501, left shell; 502, right shell; 503, upper shaft; 504, upper sealing plate; 505, lower shaft; 506, lower sealing plate; 507, upper baffle; 508, lower baffle; 509, discharge port; 510, baffle plate; 511, Upper gear; 512, lower gear; 513, upper synchronous pulley; 514, lower synchronous pulley; 515, synchronous transmission belt; 516, second mounting seat; 517, third drive motor; 518, driving gear; 519, elastic sealing strip; 6, cleaning mechanism; 61, first mounting seat; 62, second drive motor; 63, lead screw; 64, nut pair; 65, polished rod; 66, cleaning brush; 7, second rotating shaft. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0023] See also Figures 1 to 8, the embodiment of the present application provides a dust removal mechanism for a cotton carding machine, including a dust removal box 1, a first drive motor 2, a filter screen 3 and a fan blade 4, the dust removal box 1 is provided with an air inlet 11 at the bottom, and an air outlet 12 at the top of the dust removal box 1, the first drive motor 2 is fixedly connected to the dust removal box 1, the filter screen 3 is installed in the dust removal box 1, the first drive motor 2 drives the fan blade 4 to rotate, a partition 13 is fixed in the dust removal box 1, and filter screens 3 are provided on both sides of the partition 13; it also includes a closing mechanism 5 corresponding to the filter screen 3, the closing mechanism 5 includes a left shell 501, a right shell 502, an upper rotating shaft 503, an upper sealing plate 504, a lower rotating shaft 505, a lower sealing plate 506, an upper baffle 507 and a lower baffle 508, the left shell 501 and the right shell 502 are respectively located on both sides of the dust removal box 1 and are connected to the dust removal box 1, the upper baffle 5 07 and the lower baffle plate 508 are fixedly installed on the inner wall of the dust removal box 1, and multiple upper rotating shafts 503 and multiple lower rotating shafts 505 are rotatably installed in the dust removal box 1, the upper rotating shafts 503 are fixedly installed with upper sealing plates 504, and the lower rotating shafts 505 are fixedly installed with lower sealing plates 506, the upper rotating shafts 503, the upper sealing plates 504, and the upper baffle plates 507 are all located above the filter 3, and the left shell body 501, the right shell body 502, the lower rotating shaft 505, the lower sealing plates 506, and the lower baffle plates 508 are all located below the filter 3; when the upper sealing plates 504 and the lower sealing plates 506 are in a horizontal posture, the left shell body 501, the right shell body 502, the upper sealing plates 504, the lower sealing plates 506, the upper baffle plates 507 and the lower baffle plates 508 and the partition plate 13 together form a closed space covering the filter 3.

[0024] The air inlet 11 is connected to the carding machine, and the fan blades 4 are driven to rotate by the first driving motor 2, so that the air flow in the dust removal box 1 flows from the air inlet 11 to the air outlet 12, so that a negative pressure is formed at the air inlet 11, and the impurities in the carding machine are sucked into the dust removal box 1 by the negative pressure, and the impurities are blocked by the filter 3, and finally the impurities accumulate on the filter 3; according to actual needs, the filter 3 can be cleaned regularly; two closing mechanisms 5 and two filter screens 3 are provided, and when one of the filter screens 3 is to be cleaned, the filter 3 can be closed by controlling the corresponding closing mechanism 5, and then the filter screen 3 is cleaned in the closed space, so that there is no pressure difference between the upper and lower parts of the filter screen 3, so as to prevent the impurities under cleaning from being adsorbed by the filter 3 again; specifically, the upper rotating shaft 503 and the lower rotating shaft 505 are rotated so that the upper sealing plate 504 and the lower sealing plate 506 are rotated from a vertical position to a horizontal position. In this state, the upper sealing plate 504 near the upper baffle plate 507 is in sealing contact with the upper baffle plate 507, the upper sealing plate 504 near the partition 13 is in sealing contact with the partition 13, and the adjacent upper sealing plates 504 are also in sealing contact, the lower sealing plate 506 near the lower baffle plate 508 is in sealing contact with the lower baffle plate 508, the lower sealing plate 506 near the partition 13 is in sealing contact with the partition 13, and the adjacent lower sealing plates 506 are also in sealing contact, and the wide sides of the upper sealing plates 504 and the lower sealing plates 506 are also in sealing contact with the inner wall of the dust removal box 1. At this time, the upper sealing plates 504 and the lower sealing plates 506 are both in a horizontal state, and the left shell body 501, the right shell body 502, the upper sealing plates 504, the lower sealing plates 506, the upper baffle plate 507 and the lower baffle plate 508 and the partition 13 together form a closed space covering the filter screen 3. At this time, you can enter the closed space to clean the filter 3. The specific cleaning is as follows:

[0025] To facilitate cleaning of the filter 3, the embodiment of the present application also includes a cleaning mechanism 6 corresponding to the closing mechanism 5 one by one, the cleaning mechanism 6 includes a first mounting seat 61, a second drive motor 62, a screw rod 63, a nut pair 64, a light rod 65, and a cleaning brush 66. The first mounting seat 61 is fixedly connected to the outer wall of the dust removal box 1, the second drive motor 62 is fixedly mounted on the first mounting seat 61, one end of the screw rod 63 is rotatably connected to the left shell body 501, and the other end of the screw rod 63 is connected to the right shell body 502, one end of the light rod 65 is fixedly connected to the left shell body 501, and the other end of the light rod 65 is fixedly connected to the right shell body 502, the nut pair 64 is threadedly connected to the screw rod 63, the nut pair 64 is slidably connected to the light rod 65, the cleaning brush 66 is fixedly connected to the nut pair 64, the second drive motor 62 is transmission-connected to the screw rod 63, the cleaning brush 66 can be accommodated in the left shell body 501 and the right shell body 502, and the cleaning brush 66 can contact and cooperate with the bottom end of the filter 3. The second drive motor 62 drives the screw rod 63 to rotate through the coupling. Under the guidance of the light rod 65, the screw rod 63 drives the nut pair 64 to move linearly, and then drives the cleaning brush 66 to move. The cleaning brush 66 cleans the filter 3. The upper part of the cleaning brush 66 contacts the bottom of the filter 3, and can clean the impurities on the filter 3. The impurities fall on the lower sealing plate 506. The lower part of the cleaning brush 66 contacts the lower sealing plate 506, and can push the impurities into the right shell 502.

[0026] In order to facilitate the discharge of the impurities cleaned from the filter screen 3, a discharge port 509 is provided at the bottom of the right housing 502, and a baffle plate 510 for closing the discharge port 509 is hinged at the bottom of the right housing 502, and the baffle plate 510 is magnetically connected to the right housing 502. A magnet is embedded on the baffle plate 510, and the bottom material of the right housing 502 is iron. The magnet can absorb the right housing 502, so that the baffle plate 510 is magnetically connected to the right housing 502. By opening the baffle plate 510, the impurities in the right housing 502 can be discharged from the discharge port 509.

[0027] In an optional embodiment, in order to facilitate driving the upper rotating shaft 503 and the lower rotating shaft 505 to rotate quickly, the closing mechanism 5 is provided which also includes an upper gear 511, a lower gear 512, an upper synchronous pulley 513, a lower synchronous pulley 514 and a synchronous transmission belt 515. The upper rotating shaft 503 is provided with an upper gear 511, the lower rotating shaft 505 is provided with a lower gear 512, each upper gear 511 is meshedly connected, and each lower gear 512 is meshedly connected; one of the upper rotating shafts 503 is provided with an upper synchronous pulley 513, one of the lower rotating shafts 505 is provided with a lower synchronous pulley 514, and the upper synchronous pulley 513 and the lower synchronous pulley 514 are connected through a synchronous transmission belt 515. By setting the upper gear 511 and the lower gear 512, a transmission function can be achieved, and the adjacent upper rotating shafts 503 and the adjacent lower rotating shafts 505 can be turned in opposite directions, so as to form a closed space. By driving one of the upper rotating shafts 503 to rotate, the upper gear 511 can drive the other upper rotating shafts 503 to rotate, and the upper synchronous pulley 513 and the synchronous transmission belt 515 can drive the lower synchronous pulley 514 to rotate, thereby driving the lower gears 512 and the lower rotating shaft 505 to rotate, so that the closing mechanism 5 can quickly close the filter screen 3.

[0028] In an optional embodiment, in order to facilitate driving the upper gear 511 or the lower gear 512 to rotate, the closing mechanism 5 further includes a second mounting seat 516, a third driving motor 517 and a driving gear 518. The second mounting seat 516 is fixedly connected to the outer wall of the dust removal box 1, and the third driving motor 517 is fixedly installed on the second mounting seat 516. The output end of the third driving motor 517 is equipped with a driving gear 518, and the driving gear 518 is meshed and connected with one of the upper gears 511. The third driving motor 517 drives the driving gear 518 to rotate, and the driving gear 518 drives the upper gear 511 to rotate, thereby driving each upper rotating shaft 503 and the lower rotating shaft 505 to rotate.

[0029] In an optional embodiment, in order to facilitate the first drive motor 2 to drive the fan blades 4 to rotate stably, a second rotating shaft 7 is rotatably installed in the dust removal box 1 through a bearing, the fan blades 4 are fixedly installed on the second rotating shaft 7, and the first drive motor 2 is connected to the second rotating shaft 7 through a coupling.

[0030] In an optional embodiment, in order to improve the sealing effect and keep the closed space closed, elastic sealing strips 519 are installed on the outer edges of the upper sealing plate 504 and the lower sealing plate 506. The elastic sealing strips 519 have a certain elasticity and can improve the sealing effect of the upper sealing plate 504 and the lower sealing plate 506.

[0031] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A dust removal mechanism for a carding machine, comprising a dust removal box (1), a first drive motor (2), a filter screen (3) and a fan blade (4), wherein the dust removal box (1) is provided with an air inlet (11) at the bottom, and an air outlet (12) at the top of the dust removal box (1), the first drive motor (2) is fixedly connected to the dust removal box (1), the filter screen (3) is installed in the dust removal box (1), and the first drive motor (2) drives the fan blade (4) to rotate, characterized in that: The dust removal box (1) has a partition (13) fixed therein, and filters (3) are provided on both sides of the partition (13). The dust removal box (1) also includes a sealing mechanism (5) corresponding to the filters (3) in a one-to-one manner, and the sealing mechanism (5) includes a left shell (501), a right shell (502), an upper rotating shaft (503), an upper sealing plate (504), a lower rotating shaft (505), a lower sealing plate (506), an upper baffle (507) and a lower baffle (508). The left shell (501) and the right shell (502) are respectively located on both sides of the dust removal box (1) and are both connected to the dust removal box (1). The upper baffle (507) and the lower baffle (508) are both fixedly mounted on the inner wall of the dust removal box (1). A plurality of upper rotating shafts (503) and a plurality of lower rotating shafts (505) are rotatably mounted in the dust removal box (1). An upper sealing plate (504) is fixedly mounted on the shaft (503), and a lower sealing plate (506) is fixedly mounted on the lower rotating shaft (505); the upper rotating shaft (503), the upper sealing plate (504), and the upper baffle (507) are all located above the filter screen (3); the left shell (501), the right shell (502), the lower rotating shaft (505), the lower sealing plate (506), and the lower baffle (508) are all located below the filter screen (3); when the upper sealing plate (504) and the lower sealing plate (506) are in a horizontal posture, the left shell (501), the right shell (502), the upper sealing plates (504), the lower sealing plates (506), the upper baffle (507), and the lower baffle (508) together with the partition (13) form a closed space covering the filter screen (3).

2. The dust removal mechanism for a carding machine according to claim 1, characterized in that: The cleaning mechanism (6) further comprises a cleaning mechanism (6) corresponding to the sealing mechanism (5), the cleaning mechanism (6) comprising a first mounting seat (61), a second driving motor (62), a screw rod (63), a nut pair (64), a polished rod (65), and a cleaning brush (66), the first mounting seat (61) being fixedly connected to the outer wall of the dust removal box (1), the second driving motor (62) being fixedly mounted on the first mounting seat (61), one end of the screw rod (63) being rotatably connected to the left housing (501), and the other end of the screw rod (63) being connected to the right housing (502). One end of the polished rod (65) is fixedly connected to the left housing (501), the other end of the polished rod (65) is fixedly connected to the right housing (502), the nut pair (64) is threadedly connected to the screw rod (63), the nut pair (64) is slidably connected to the polished rod (65), the cleaning brush (66) is fixedly connected to the nut pair (64), the second drive motor (62) is transmission-connected to the screw rod (63), the cleaning brush (66) can be accommodated in the left housing (501) and the right housing (502), and the cleaning brush (66) can contact and cooperate with the bottom end of the filter screen (3).

3. The dust removal mechanism for a carding machine according to claim 1, characterized in that: The bottom of the right shell (502) is provided with a discharge port (509), and the bottom of the right shell (502) is hinged with a baffle plate (510) for closing the discharge port (509), and the baffle plate (510) is magnetically connected to the right shell (502).

4. The dust removal mechanism for a carding machine according to claim 1, characterized in that: The closing mechanism (5) further comprises an upper gear (511), a lower gear (512), an upper synchronous pulley (513), a lower synchronous pulley (514) and a synchronous transmission belt (515); the upper rotating shaft (503) is equipped with an upper gear (511), the lower rotating shaft (505) is equipped with a lower gear (512), the upper gears (511) are meshed and connected, and the lower gears (512) are meshed and connected; one of the upper rotating shafts (503) is equipped with an upper synchronous pulley (513), one of the lower rotating shafts (505) is equipped with a lower synchronous pulley (514), and the upper synchronous pulley (513) and the lower synchronous pulley (514) are connected through a synchronous transmission belt (515).

5. The dust removal mechanism for a carding machine according to claim 4, characterized in that: The sealing mechanism (5) further comprises a second mounting seat (516), a third driving motor (517) and a driving gear (518); the second mounting seat (516) is fixedly connected to the outer wall of the dust removal box (1); the third driving motor (517) is fixedly mounted on the second mounting seat (516); a driving gear (518) is mounted on the output end of the third driving motor (517); the driving gear (518) is meshingly connected to one of the upper gears (511) or the lower gears (512).

6. The dust removal mechanism for a carding machine according to claim 1, characterized in that: A second rotating shaft (7) is rotatably mounted in the dust removal box (1), the fan blades (4) are fixedly mounted on the second rotating shaft (7), and the first drive motor (2) is transmission-connected to the second rotating shaft (7) via a coupling.

7. The dust removal mechanism for a carding machine according to claim 1, characterized in that: Elastic sealing strips (519) are installed on the outer edges of the upper sealing plate (504) and the lower sealing plate (506).