CN210701321U

CN210701321U - Automatic cleaning equipment for multi-model rollers

Info

Publication number: CN210701321U
Application number: CN201921834617.8U
Authority: CN
Inventors: 张勇; 王振京; 何瑞达; 陈彦龙
Original assignee: Hebei Institute of Mechanical and Electrical technology
Current assignee: Hebei Institute of Mechanical and Electrical technology
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-09
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a multi-model roller automatic cleaning device, which comprises a base and a recovery flow channel arranged on the base, wherein the recovery flow channel is provided with two branches which are gathered in a recovery device; a roller supporting device is arranged on the base; a cleaning device is arranged on the base. The utility model is provided with the roller supporting device on the base, the roller positions supported at the two ends of the roller are changed, the rollers with different diameters and lengths are supported, and the second motor reducer is utilized to realize the automatic rotation of the roller; meanwhile, the transverse and longitudinal movement of the nylon rolling brush is realized by utilizing the cleaning device, so that the nylon rolling brush can adapt to rollers with different diameters, and can move along the length direction of the rollers to carry out comprehensive cleaning; the cleaning part of the nylon rolling brush is driven to rotate by the asynchronous motor, so that the cleaning dead angle is further reduced; the cleaning solution flows downwards onto the base by using the shielding device and enters the recovery device through the recovery flow channel; and the roller is cleaned, and the cleaning effect is improved.

Description

Automatic cleaning equipment for multi-model rollers

Technical Field

The utility model relates to a roll washs the field, especially relates to a polytypic roll self-cleaning equipment.

Background

The roller needs to be cleaned after being used for a long time, but the prior roller cleaning device can not adapt to rollers with different diameters and lengths, and the position of the rolling brush can not be moved and rotated randomly, so that a cleaning dead angle exists. For example, a utility model patent having a patent number "201820773683.8" and a patent name "a roll cleaning device"; the patent number is "201520448769. X", and the patent name is a utility model of "a cold roll steel cleaning device". Therefore, an automatic cleaning device for the rollers in various models is urgently needed, and can adapt to the rollers in various models, so that the positions of the rolling brushes can be moved and rotated randomly, and the cleaning effect is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polytypic roll self-cleaning equipment, the round brush position of solving current polytypic roll self-cleaning equipment can not remove wantonly and rotate, causes the poor problem of cleaning performance.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a multi-model roller automatic cleaning device, which comprises a base and a recovery flow channel arranged on the base, wherein the recovery flow channel is provided with two branches which are respectively positioned at two sides of the base, and the two branches are gathered in a recovery device; the base is provided with a roller supporting device, and the roller supporting device is positioned between the two branches; the cleaning device comprises a transverse support and a vertical moving support movably arranged on the transverse support, the transverse support is fixed on the base, a first linear guide rail sliding block assembly is vertically arranged on the vertical moving support, and a supporting cross beam is arranged on a sliding block of the first linear guide rail sliding block assembly; a ball screw is arranged on a guide rail of the first linear guide rail sliding block assembly, the ball screw is in threaded fit with a sliding block of the first linear guide rail sliding block assembly, and the ball screw is driven by a stepping motor arranged on the vertical moving support; the lower side of the end head of the supporting beam is provided with a nylon rolling brush, the upper side of the end head of the supporting beam is provided with an asynchronous motor, and the asynchronous motor is in transmission with the nylon rolling brush through a synchronous belt; the lower end of the end head of the supporting beam is provided with a shielding device which covers the periphery of the nylon rolling brush, a hose nozzle communicated with a water source is arranged in the shielding device, and the hose nozzle is used for cleaning the nylon rolling brush.

Further, the roller supporting device comprises a driving end base and a driven end base which are arranged on the base, the driving end base and the driven end base are oppositely arranged between the two branches, a driven bracket is movably arranged on the driven end base, and the driven bracket can move towards the driving end base; a first rack is arranged on the base, the first rack is parallel to a connecting line of the driving end base and the driven end base, a first motor reducer is arranged on the driven bracket, and the first motor reducer is matched with the first rack through a first gear; the driving end base is provided with two driving devices, and each driving device comprises a first roller wheel bracket, a first roller wheel arranged on the first roller wheel bracket and a second motor reducer arranged on the first roller wheel bracket and used for driving the first roller wheel; two driven devices are arranged on the driven bracket, and each driven device comprises a second roller bracket and a second roller arranged on the second roller bracket; and hand-operated wheel screw assemblies for driving the first roller wheel support or the second roller wheel support are arranged on the driving end base and the driven bracket.

Still further, the up end of driven end base is provided with the guide rail, the lower terminal surface of driven bracket has seted up the guide slot, the guide slot cooperates with the guide rail.

Furthermore, the rotation directions of the screw threads of the positions, matched with the two first roller wheel supports, of the screw rod of the hand-operated wheel screw rod assembly on the driving end base are opposite, and the thread sleeves of the hand-operated wheel screw rod assembly are respectively arranged on the two first roller wheel supports and are matched with the screw rod; the screw rod of the hand-operated wheel screw rod assembly on the driven bracket is opposite to the matching thread rotating directions of the matching positions of the two second roller wheel supports, and the thread sleeves of the hand-operated wheel screw rod assembly are respectively installed on the two second roller wheel supports and are matched with the screw rod.

Still further, the first roller and the second roller have the same horizontal height.

And furthermore, a second linear guide rail sliding block assembly is arranged on the transverse moving support, and the vertical moving support is arranged on a sliding block of the second linear guide rail sliding block assembly.

Still further, a second rack is arranged on the transverse moving support, the length direction of the second rack is parallel to that of the transverse moving support, a servo motor is arranged on the vertical moving support, a second gear is arranged on an output shaft of the servo motor, and the second gear is meshed with the second rack.

And furthermore, the number of the hose spray heads is two, and the hose spray heads are respectively positioned at two sides of the nylon rolling brush.

Still further, the nylon rolling brush comprises a support frame and a rotating optical axis which is rotatably arranged on the support frame, a split cylindrical nylon brush roller is arranged on the rotating optical axis through a set screw, and a synchronous belt toothed wheel is arranged on the rotating optical axis in the gap between the split cylindrical nylon brush rollers; the rotary roller is characterized in that hemispherical nylon brush rollers are arranged at two ends of the rotary optical axis, cylindrical protrusions are arranged on the hemispherical nylon brush rollers, and the cylindrical protrusions are inserted into shaft holes of the cylindrical nylon brush rollers at two ends.

Furthermore, the support frame comprises two opposite support plates and a pull rod connected between the two support plates, and the ends of the two support plates are provided with the rotating optical axis through bearings; a positioning sleeve for positioning the bearing is arranged on the rotating optical axis; the cylindrical nylon brush roll comprises a first cylindrical nylon brush roll, a second cylindrical nylon brush roll, a third cylindrical nylon brush roll and a fourth cylindrical nylon brush roll; the first cylindrical nylon brush roll is positioned on the left sides of the two support plates, the second cylindrical nylon brush roll is positioned between the two support plates, and the third cylindrical nylon brush roll and the fourth cylindrical nylon brush roll are positioned on the right sides of the two support plates; the synchronous toothed wheel is positioned between the third cylindrical nylon brush roll and the fourth cylindrical nylon brush roll.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

the utility model discloses set up the roll strutting arrangement on the base, change through the gyro wheel position that supports at the roll both ends, realize the support of the roll of different diameters and length, adapt to the roll of multiple model, and utilize the second motor reduction gear to realize the automatic rotation of roll; meanwhile, the transverse and longitudinal movement of the nylon rolling brush is realized by utilizing the cleaning device, so that the nylon rolling brush can adapt to rollers with different diameters, and can move along the length direction of the rollers to carry out comprehensive cleaning; the cleaning part of the nylon rolling brush is driven to rotate by the asynchronous motor, so that the cleaning dead angle is further reduced; the cleaning solution flows downwards onto the base by using the shielding device and enters the recovery device through the recovery flow channel; and the roller is cleaned, and the cleaning effect is improved.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a structural diagram of the multi-type automatic roller cleaning device of the present invention;

FIG. 2 is a structural view of the roll supporting device of the present invention;

fig. 3 is a schematic view of the hand-operated wheel screw assembly of the present invention cooperating with the first roller bracket or the second roller bracket;

FIG. 4 is a view showing the structure of the cleaning device of the present invention;

FIG. 5 is a cross-sectional view of the nylon roller brush of the present invention;

FIG. 6 is a structural view of the nylon rolling brush of the present invention;

description of reference numerals: 1. a base; 2. a recovery flow channel; 201. branching; 3. a recovery device;

4. a roll support device; 401. a second motor reducer; 402. a first roller; 403. a first roller bracket; 404. an active end base; 405. a second roller; 406. a hand-operated wheel screw assembly; 407. a guide rail; 408. a first rack; 409. a first motor reducer; 410. a second roller bracket; 411. a driven bracket; 412. a driven end base; 413. a guide groove; 414. a first gear;

5. a cleaning device; 501. nylon rolling brush; 50101. a hemispherical nylon brush roll; 50102. a first cylindrical nylon brush roll; 50103. a support plate; 50104. a pull rod; 50105. a third cylindrical nylon brush roll; 50106. a fourth cylindrical nylon brush roll; 50107. synchronous belt tooth-shaped wheels; 50108. rotating the optical axis; 50109. a positioning sleeve; 50110. a second cylindrical nylon brush roll; 50111. a cylindrical protrusion; 502. a hose nozzle; 503. a shielding device; 504. a support beam; 505. an asynchronous motor; 506. a synchronous belt; 507. a stepping motor; 508. a ball screw; 509. a first linear guide rail slider assembly; 510. a servo motor; 511. a second gear; 512. a second linear guide rail slider assembly; 513. transversely moving the support; 514. vertically moving the bracket; 515. a second rack.

Detailed Description

As shown in fig. 1 to 6, a specific embodiment of an automatic cleaning device for a multi-type roller includes a base 1 and a recovery flow channel 2 arranged on the base 1, the recovery flow channel 2 has two branches 201, the two branches 201 are respectively located at two sides of the base 1, the two branches 201 converge into a recovery device 3, the roller is cleaned on the base, and a cleaning solution converges into the two branches, and then flows into the recovery device from the branches of the recovery flow channel for recovery.

As shown in fig. 1, 2 and 3, a roll support device 4 is installed on the base 1, specifically, the roll support device 4 includes a driving end base and a driven end base which are arranged on the base, the driving end base and the driven end base are oppositely arranged between the two branches, and the driven end base is formed by arranging three i-beams at intervals, so that the cleaning liquid can flow downwards conveniently. The driven end base 412 is movably provided with a driven bracket 411, specifically, the upper end surface of the driven end base 412 is welded and fixed with a guide rail 407, the lower end surface of the driven bracket 411 is provided with a guide groove 413, the guide groove 413 is matched with the guide rail 407, and the length direction of the guide rail is the moving direction of the driven bracket, so that the driven bracket 411 can move towards the driving end base 404. A first rack 408 is welded on the base 1, and the first rack 408 is parallel to a connecting line between the driving end base 404 and the driven end base 412, that is, the first rack is parallel to the guide rail. A first motor reducer 409 is fixedly mounted on the driven bracket 411, the first motor reducer 409 is matched with the first rack 408 through a first gear 414, the driven bracket is driven to move along the guide rail through forward and reverse rotation of the first motor reducer, and the distance between the driving end base and the driven bracket is changed. Two driving devices are mounted on the driving end base 404, and each driving device includes a first roller bracket 403, a first roller 402 mounted on the first roller bracket 403, and a second motor reducer 401 mounted on the first roller bracket 403 and used for driving the first roller 402. Two driven devices are mounted on the driven bracket 411, and each driven device comprises a second roller bracket 410 and a second roller 405 mounted on the second roller bracket 410. When the roller is used, one end of the roller is supported between the two first rollers, the other end of the roller is supported between the two second rollers, and the roller is driven to rotate when the second motor reducer drives the first rollers to rotate. The first roller 402 and the second roller 405 have the same horizontal height, so that the roller is in a horizontal state. When the distance between the driving end base and the driven bracket is changed, the distance between the first roller and the second roller is driven to change, so that the roller is suitable for rollers with different lengths. All install the hand wheel lead screw subassembly 406 of the first gyro wheel support 403 of drive or second gyro wheel support 410 on drive end base 404 and the driven bracket 411, specifically, on the drive end base 404 the lead screw of hand wheel lead screw subassembly 406 is opposite with two the cooperation screw thread direction of rotation of the first gyro wheel support 403 complex position, the thread bush of hand wheel lead screw subassembly 406 is installed respectively on two first gyro wheel supports 403 and is just cooperated with the lead screw, when hand wheel lead screw subassembly 406 on drive end base 404 rotates, drives two first gyro wheel supports towards opposite directions or opposite movement. The lead screw of hand wheel lead screw subassembly 406 on driven bracket 411 with two the cooperation screw thread direction of rotation of the position of second gyro wheel support 410 cooperation is opposite, the thread bush of hand wheel lead screw subassembly 406 install respectively on two second gyro wheel supports 410 and with the lead screw cooperation, when hand wheel lead screw subassembly 406 on the driven bracket rotates, drives two second gyro wheel supports towards opposite directions or opposite movement. Therefore, when in use, the two hand-operated wheel screw assemblies 406 are respectively adjusted, so that the distance between the two driving devices and the two driven devices is changed, and the two hand-operated wheel screw assemblies are suitable for rollers with different diameters.

As shown in fig. 1 and 4, a cleaning device 5 is further mounted on the base 1, the cleaning device 5 includes a traverse support 513 and a vertical moving support 514 movably mounted on the traverse support 513, the traverse support 513 is fixed on the base 1, and the length direction of the traverse support is parallel to the connecting line of the driving end base 404 and the driven end base 412. Specifically, a second linear guide rail sliding block assembly 512 is mounted on the transverse moving support 513, the vertical moving support 514 is fixed on a sliding block of the second linear guide rail sliding block assembly 512, a guide rail of the second linear guide rail sliding block assembly is fixedly mounted on the transverse moving support, and the length direction of the guide rail of the second linear guide rail sliding block assembly is parallel to the length direction of the transverse moving support, so that the vertical moving support can move along the transverse moving support. Be fixed with second rack 515 on the sideslip support 513, the length direction of second rack 515 is parallel with the length direction of sideslip support 513, installs servo motor 510 on the support 514 that erects to move, install second gear 511 on servo motor 510's the output shaft, second gear 511 meshes with second rack 515 mutually, realizes the reciprocating motion of the support that erects to move on the sideslip support through servo motor's positive and negative rotation. A first linear guide rail sliding block assembly 509 is vertically installed on the vertical moving support 514, and a supporting beam 504 is fixed on a sliding block of the first linear guide rail sliding block assembly 509, so that the supporting beam extends horizontally. The guide rail of the first linear guide rail sliding block component 509 is provided with a ball screw 508, the ball screw 508 is in threaded fit with the sliding block of the first linear guide rail sliding block component 509, the ball screw 508 is driven by a stepping motor 507 arranged on a vertical moving support 514, and the stepping motor drives the ball screw to rotate forward and backward to drive the sliding block of the first linear guide rail sliding block component 509 to move up and down, so that the supporting beam moves up and down. Rotatable nylon round brush 501 is installed to the downside of the end of supporting beam 504, and asynchronous machine 505 is installed to the upside, asynchronous machine 505 passes through hold-in range 506 and nylon round brush 501 transmission, utilizes asynchronous machine to drive the nylon round brush and rotates, washs the roll. The utility model discloses a nylon round brush 501 cleaning device, including supporting beam 504, shielding device 503 is installed to supporting beam 504 end lower extreme and is covered and establish around nylon round brush 501, shield and install the hose nozzle 502 that communicates the water source in the device 503, the quantity of hose nozzle 502 is two, is located respectively nylon round brush 501 both sides, hose nozzle 502 is used for spraying cleaning solution such as water and cleans nylon round brush 501. The shielding device can prevent the cleaning solution from splashing around, and further prevent the cleaning solution from splashing on the asynchronous motor.

As shown in fig. 5 and 6, the structure of the nylon rolling brush 501 comprises a support frame, specifically, the support frame comprises two opposite support plates 50103 and a pull rod 50104 connected between the two support plates 50103, so that the support plates can be kept fixed, one ends of the two support frames are used for being fixedly installed on a support cross beam, the other ends of the two support plates 50103 are provided with the rotating optical axis 50108 through bearings, and the rotating optical axis 50108 is provided with a positioning sleeve 50109 used for positioning the bearings, so that the axial position of the rotating optical axis is fixed and can only rotate on the support plates. The rotating optical axis 50108 is provided with split cylindrical nylon brush rolls through set screws, and specifically, the cylindrical nylon brush rolls comprise a first cylindrical nylon brush roll 50102, a second cylindrical nylon brush roll 50110, a third cylindrical nylon brush roll 50105 and a fourth cylindrical nylon brush roll 50106; the first cylindrical nylon brush roller 50102 is located at the left side of the two support plates 50103, the second cylindrical nylon brush roller 50110 is located between the two support plates 50103, and the third cylindrical nylon brush roller 50105 and the fourth cylindrical nylon brush roller 50106 are located at the right side of the two support plates 50103. A synchronous belt toothed wheel 50107 is arranged between the third cylindrical nylon brush roll 50105 and the fourth cylindrical nylon brush roll 50106, and the driving device can drive the rotating optical axis to rotate through a synchronous belt. Hemisphere nylon brush roll 50101 is installed at rotatory optical axis 50108 both ends, specifically, cylindrical protrusion 50111 has on the hemisphere nylon brush roll 50101, cylindrical protrusion 50111 inserts in the axle hole of the cylindrical nylon brush roll at both ends, and the design of pin-connected panel makes the utility model discloses the dismouting of being convenient for, and the optical axis all around and the tip can both be used for when rotating cleanly, reduces the dead angle when the roll is clean.

When the roller support device is used, the position of the driven bracket and the distance between the two first rollers and the two second rollers are adjusted, so that different rollers can be supported on the roller support device. The position of the nylon roller brush is then changed according to the position, length and diameter of the roller. The cleaning device can clean the roller in all directions. The nylon round brush can rotate, washs more thoroughly to the roll to the utilization is sheltered from the device and is covered the roll, and hose nozzle and nylon round brush are sheltered from the inside roll that washs of device, prevent that the washing liquid from spattering in disorder. The cleaning liquid flowing to the base can enter the recovery device through the recovery flow channel for recovery.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a polytypic roll self-cleaning equipment which characterized in that: the device comprises a base (1) and a recovery flow channel (2) arranged on the base (1), wherein the recovery flow channel (2) is provided with two branches (201), the two branches (201) are respectively positioned at two sides of the base (1), and the two branches (201) are converged into a recovery device (3); a roller supporting device (4) is arranged on the base (1), and is positioned between the two branches; the cleaning device (5) is arranged on the base (1), the cleaning device (5) comprises a transverse moving support (513) and a vertical moving support (514) movably arranged on the transverse moving support (513), the transverse moving support (513) is fixed on the base (1), a first linear guide rail sliding block assembly (509) is vertically arranged on the vertical moving support (514), and a supporting beam (504) is arranged on a sliding block of the first linear guide rail sliding block assembly (509); a ball screw (508) is arranged on a guide rail of the first linear guide rail sliding block assembly (509), the ball screw (508) is in threaded fit with a sliding block of the first linear guide rail sliding block assembly (509), and the ball screw (508) is driven by a stepping motor (507) arranged on a vertical moving support (514); a nylon rolling brush (501) is arranged on the lower side of the end head of the supporting beam (504), an asynchronous motor (505) is arranged on the upper side of the end head of the supporting beam, and the asynchronous motor (505) is in transmission with the nylon rolling brush (501) through a synchronous belt (506); the lower end of the end head of the supporting beam (504) is provided with a shielding device (503) which covers the periphery of the nylon rolling brush (501), a hose spray head (502) communicated with a water source is arranged in the shielding device (503), and the hose spray head (502) is used for cleaning the nylon rolling brush (501).

2. The automatic cleaning equipment for the rollers of various models according to claim 1, characterized in that: the roll supporting device (4) comprises a driving end base (404) and a driven end base (412) which are arranged on the base (1), the driving end base (404) and the driven end base (412) are oppositely arranged between the two branches (201), a driven bracket (411) is movably arranged on the driven end base (412), and the driven bracket (411) can move towards the driving end base (404); a first rack (408) is arranged on the base (1), the first rack (408) is parallel to a connecting line of the driving end base (404) and the driven end base (412), a first motor reducer (409) is arranged on the driven bracket (411), and the first motor reducer (409) is matched with the first rack (408) through a first gear (414); two driving devices are arranged on the driving end base (404), and each driving device comprises a first roller bracket (403), a first roller (402) arranged on the first roller bracket (403) and a second motor reducer (401) arranged on the first roller bracket (403) and used for driving the first roller (402); two driven devices are arranged on the driven bracket (411), and each driven device comprises a second roller bracket (410) and a second roller (405) arranged on the second roller bracket (410); and hand-operated wheel screw assemblies (406) for driving the first roller bracket (403) or the second roller bracket (410) are arranged on the driving end base (404) and the driven bracket (411).

3. The automatic cleaning equipment for the multi-model rollers according to claim 2, characterized in that: the upper end face of the driven end base (412) is provided with a guide rail (407), the lower end face of the driven bracket (411) is provided with a guide groove (413), and the guide groove (413) is matched with the guide rail (407).

4. The automatic cleaning equipment for the multi-model rollers according to claim 2, characterized in that: the rotating directions of the matching threads at the positions where the lead screw of the hand-operated wheel lead screw assembly (406) on the driving end base (404) is matched with the two first roller wheel brackets (403) are opposite, and the thread sleeves of the hand-operated wheel lead screw assembly (406) are respectively arranged on the two first roller wheel brackets (403) and are matched with the lead screw; the screw rod of the hand-operated wheel screw rod assembly (406) on the driven bracket (411) is opposite to the matching thread rotating direction of the matching positions of the two second roller wheel supports (410), and the thread sleeves of the hand-operated wheel screw rod assembly (406) are respectively installed on the two second roller wheel supports (410) and are matched with the screw rod.

5. The automatic cleaning equipment for the multi-model rollers according to claim 2, characterized in that: the first roller (402) and the second roller (405) have the same horizontal height.

6. The automatic cleaning equipment for the rollers of various models according to claim 1, characterized in that: the transverse moving support (513) is provided with a second linear guide rail sliding block assembly (512), and the vertical moving support (514) is arranged on a sliding block of the second linear guide rail sliding block assembly (512).

7. The automatic cleaning equipment for the rollers of various models according to claim 1, characterized in that: be provided with second rack (515) on sideslip support (513), the length direction of second rack (515) is parallel with the length direction of sideslip support (513), erects to be provided with servo motor (510) on moving support (514), be provided with second gear (511) on the output shaft of servo motor (510), second gear (511) and second rack (515) mesh mutually.

8. The automatic cleaning equipment for the rollers of various models according to claim 1, characterized in that: the number of the hose spray heads (502) is two, and the hose spray heads are respectively positioned on two sides of the nylon rolling brush (501).

9. The automatic cleaning equipment for the rollers of various models according to claim 1, characterized in that: the nylon rolling brush (501) comprises a support frame and a rotating optical axis (50108) rotatably arranged on the support frame, a split cylindrical nylon brush roller is arranged on the rotating optical axis (50108) through a set screw, and a synchronous belt toothed wheel (50107) is arranged on the rotating optical axis (50108) in the gap between the split cylindrical nylon brush rollers; the rotary brush roller is characterized in that hemispherical nylon brush rollers (50101) are arranged at two ends of the rotary optical axis (50108), cylindrical protrusions (50111) are arranged on the hemispherical nylon brush rollers (50101), and the cylindrical protrusions (50111) are inserted into shaft holes of the cylindrical nylon brush rollers at two ends.

10. The automatic cleaning equipment for the multi-model rollers according to claim 9, characterized in that: the supporting frame comprises two opposite supporting plates (50103) and a pull rod (50104) connected between the two supporting plates (50103), and the ends of the two supporting plates (50103) are provided with the rotating optical axis (50108) through bearings; a positioning sleeve (50109) for positioning the bearing is arranged on the rotating optical axis (50108); the cylindrical nylon brush rolls comprise a first cylindrical nylon brush roll (50102), a second cylindrical nylon brush roll (50110), a third cylindrical nylon brush roll (50105) and a fourth cylindrical nylon brush roll (50106); the first cylindrical nylon brush roll (50102) is positioned on the left side of the two support plates (50103), the second cylindrical nylon brush roll (50110) is positioned between the two support plates (50103), and the third cylindrical nylon brush roll (50105) and the fourth cylindrical nylon brush roll (50106) are positioned on the right side of the two support plates (50103); the synchronous belt toothed wheel (50107) is positioned between the third cylindrical nylon brush roller (50105) and the fourth cylindrical nylon brush roller (50106).