Cotton processing and conveying device with impurity separation function

Abstract

The invention relates to the technical field of cotton processing and conveying devices, in particular to a cotton processing and conveying device with an impurity separation function, which comprises a protective frame, a conveying assembly is mounted in the protective frame, the conveying assembly comprises two groups of roller rods rotating on the protective frame, and a conveying mesh belt is in transmission connection with the two groups of roller rods. The first gear drives the second gear to rotate, the second gear drives the cotton roller to rotate, when cotton passes through the cotton roller, the needle teeth scatter the accumulated cotton and enable the cotton to be evenly distributed on the conveying belt, the roller rod is in transmission connection with a cotton roller, the roller rod is in transmission connection with a rotating rod, and four sets of rotating rods are arranged on the rotating rod. The cotton roller can comb cotton more evenly, and the situation that due to the influence of environmental factors, the humidity of some cotton is large, the part with the large humidity is too thick, the cotton is prone to uneven distribution on a conveying belt, and the impurity separation effect is poor when follow-up conveying is conducted is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cotton processing conveying device, in particular to a cotton processing conveying device with impurity separation function. BACKGROUND

[0002] The cotton processing conveying device with impurity separation function is a key equipment in the cotton processing production line, mainly used for effectively separating impurities in the conveying process of cotton, improving the quality and purity of cotton, and providing high-quality raw materials for subsequent processing procedures. At present, cotton is easily affected by environmental conditions during storage or transportation, resulting in a part of the cotton having a higher humidity. The weight of the cotton with a higher humidity is heavier than that of normal cotton, causing uneven distribution on the conveying belt during transportation due to the over-thickness of the part with a higher humidity, thereby affecting the subsequent impurity separation effect. SUMMARY

[0003] The purpose of the present application is to provide a cotton processing conveying device with impurity separation function. The first gear drives the second gear to rotate, the second gear drives the cotton roller to rotate, the needle teeth will scatter the accumulated cotton when the cotton passes through the cotton roller, and the cotton will be evenly distributed on the conveying belt, so that the cotton roller can comb the cotton more evenly, preventing the uneven distribution on the conveying belt due to the influence of environmental factors, some cotton with a higher humidity, the over-thickness of the part with a higher humidity, resulting in subsequent transmission for impurity separation, and poor impurity separation effect.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a cotton processing conveying device with impurity separation function, comprising a protective frame, a conveying assembly is installed inside the protective frame, the conveying assembly comprises two groups of roller rods rotating on the protective frame, a transmission mesh belt is connected in transmission on the two groups of roller rods, a cotton roller is connected in transmission on the roller rod, a rotating rod is connected in transmission on the roller rod, four groups of rotating rods are provided on the rotating rod, and a push rod is installed on one side of each of the two groups of rotating rods; An auxiliary assembly is installed inside the protective frame, the auxiliary assembly comprises two groups of beating plates, the lower ends of the two groups of beating plates are connected in sliding with the push rod, the upper ends of the two groups of beating plates are connected with a first connecting rod, one end of the first connecting rod is rotatably connected with an adjusting frame, a flap is fixedly connected on one side of the adjusting frame, a second connecting rod is connected on one side of the flap, a shaking plate is fixedly connected on one side of the second connecting rod, and the shaking plate is rotatably connected on both sides in the protective frame.

[0005] Preferably, a collecting frame is fixedly installed at the lower end of the protective frame, and the collecting frame is arranged below the transmission mesh belt.

[0006] Preferably, one end of the roller rod extends through the protective frame and is rotatably connected to a motor.

[0007] Preferably, a first gear is fixedly installed on the roller rod, and the cotton roller is fixedly installed at one end of the second gear, and the first gear is meshed with the second gear.

[0008] Preferably, a belt is drivingly installed on the roller rod, one end of the belt is installed on a rotating rod, both ends of the rotating rod extend through the protective frame and are fixedly connected to eccentric wheels, and the other two groups of eccentric wheels are arranged inside the transmission mesh belt.

[0009] Preferably, the lower end of the two groups of beating plates is fixedly connected to springs, and the lower end of the springs is fixedly connected to the protective frame.

[0010] Preferably, the first connecting rod is fixedly installed on the two groups of beating plates, the other end of the first connecting rod is rotatably connected to the adjusting frame, the connecting rods are fixedly installed on both sides of the adjusting frame, and the two groups of connecting rods are fixedly installed on the adjusting frame.

[0011] Preferably, the two groups of connecting rods are rotatably connected to the fixed frame, the lower end of the fixed frame is fixedly installed on the protective frame, and the lower end of the turning plate is provided with a tooth.

[0012] Preferably, the fixed seat is fixedly installed on one side of the turning plate, the second connecting rod is rotatably connected to the fixed seat, and the shaking plate is provided with a brush at the lower end.

[0013] Compared with the prior art, the present application has the following advantages: 1、The first gear is driven to rotate by the rotation of the roller rod, the first gear is meshed with the second gear, the second gear is driven to rotate by the first gear, and the cotton roller is driven to rotate by the second gear, so that the accumulated cotton is scattered by the pin teeth when the cotton passes through the cotton roller, and is uniformly distributed on the conveying belt, so that the cotton roller can comb the cotton more uniformly, and prevent uneven distribution of some cotton with high humidity on the conveying belt due to environmental factors, which leads to poor impurity separation efficiency in subsequent transmission.

[0014] 2、The four groups of eccentric wheels are driven to rotate by the rotating rod, and the two groups of eccentric wheels inside the transmission mesh belt vibrate, which can promote the impurities in the cotton to be quickly separated out, improve the impurity separation efficiency in the cotton, and facilitate the collection and processing of the separated impurities in the collection frame.

[0015] 3、The push rod will push the beating plate to rise, at this time the spring is stretched, the push rod rotates away from the position of the beating plate, the beating plate is not subjected to the pushing force of the push rod, the spring is contracted, the spring drives the beating plate to reset, the beating plate reciprocates in the process, and the beating plate shakes off the impurities attached to the cotton through the reciprocating beating action, so that the cotton and the impurities are prevented from being mixed closely, and part of the impurities, such as small cotton leaves and cotton shells, are difficult to separate completely, thereby affecting the quality of the cotton.

[0016] 4、The beating plate pulls the adjusting frame through the first connecting rod, one side of the adjusting frame is moved downward when being pulled, the other side of the adjusting frame drives the flap to be folded upward, the lower end of the flap is toothed, and the cotton after beating is driven to be turned over, so that the softer side of the cotton is contacted with the transmission mesh belt, and the falling efficiency and falling quality of the cotton impurities are improved when the transmission mesh belt drives the cotton to vibrate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall structure of the present application; Figure 2 It is a sectional view of the overall structure of the present application; Figure 3 It is a schematic view of the auxiliary assembly of the present application; Figure 2 It is a schematic view of the structure at A of the present application; Figure 4 It is a schematic view of the structure of the conveying assembly and the auxiliary assembly of the present application; Figure 5 It is a sectional view of the conveying assembly of the present application; Figure 6 It is a schematic view of the structure of the auxiliary assembly of the present application; Figure 7 It is a schematic view of the structure of the auxiliary assembly of the present application.

[0018] In the figure: 1, protective frame; 101, collecting frame; 2, conveying assembly; 201, motor; 202, roller; 203, transmission mesh belt; 204, first gear; 205, second gear; 206, cotton roller; 207, belt; 208, rotating rod; 209, eccentric wheel; 210, push rod; 3, auxiliary assembly; 301, beating plate; 302, spring; 303, first connecting rod; 304, adjusting frame; 305, flap; 306, fixed frame; 307, second connecting rod; 308, shaking plate; 309, brush; 310, fixed seat. DETAILED DESCRIPTION

[0019] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0020] Referring to Figures 1 to 5 As shown in the drawings, the present application provides a cotton processing and conveying device with impurity separation function, which comprises a protective frame 1, a conveying assembly 2 is installed inside the protective frame 1, the conveying assembly 2 comprises two groups of roller shafts 202 rotating on the protective frame 1, a transmission mesh belt 203 is connected in motion on the roller shafts 202, a cotton roller 206 is connected in motion on the roller shafts 202, a rotating rod 208 is connected in motion on the roller shafts 202, and four groups of rotating rods 208 are arranged on the rotating rod 208, wherein two groups of rotating rods 208 are each provided with a push rod 210 on one side; The construction personnel start the motor 201, the motor 201 drives the roller shafts 202 to rotate, the roller shafts 202 drive the transmission mesh belt 203 to rotate, the construction personnel places the cotton on the transmission mesh belt 203 for transmission, the roller shafts 202 drive the first gear 204 to rotate at the same time, the first gear 204 is engaged with the second gear 205, the first gear 204 drives the second gear 205 to rotate, the second gear 205 drives the cotton roller 206 to rotate, a certain density of needle teeth is arranged on the cotton roller 206, when the cotton passes through the cotton roller 206, the needle teeth will scatter the accumulated cotton, and make it evenly distributed on the conveying belt, so that the cotton roller 206 can comb the cotton more evenly, prevent some cotton from being affected by environmental factors, and the part with higher humidity is too thick, which is easy to cause uneven distribution on the conveying belt, resulting in poor impurity separation effect in subsequent transmission; At the same time that the roller shafts 202 drive the transmission mesh belt 203 to rotate, the roller shafts 202 drive the rotating rod 208 to rotate through the belt 207, the rotating rod 208 drives four groups of eccentric wheels 209 to rotate, because the rotation axis of the eccentric wheel 209 and the rotation axis of the rotating rod 208 are not on the same axis, the eccentric wheel 209 rotates eccentrically, two groups of eccentric wheels 209 located inside the transmission mesh belt 203 will drive the transmission mesh belt 203 to vibrate, the vibration can promote the impurities in the cotton to be separated out quickly, improve the impurity separation efficiency in the cotton, and the impurities separated by vibration fall into the collecting frame 101, which is convenient for the construction personnel to collect and process; Referring to Figures 6 to 7As shown, the auxiliary assembly 3 is installed inside the protective frame 1, the auxiliary assembly 3 includes two groups of beating plates 301, the lower end of the two groups of beating plates 301 is slidably connected with the push rod 210, the upper end of the two groups of beating plates 301 is connected with the first connecting rod 303, one end of the first connecting rod 303 is rotatably connected with the adjusting frame 304, one side of the adjusting frame 304 is fixedly connected with the flap 305, one side of the flap 305 is connected with the second connecting rod 307, one side of the second connecting rod 307 is fixedly connected with the shaking plate 308, and the shaking plate 308 is rotatably connected on both sides inside the protective frame 1; When the four groups of eccentric wheels 209 are rotated by the rotating rod 208, the other two groups of eccentric wheels 209 drive the push rod 210 to rotate, the push rod 210 rotates to the position of the beating plate 301, and the push rod 210 pushes the beating plate 301 to rise, at this time the spring 302 is stretched, the push rod 210 rotates away from the position of the beating plate 301, the beating plate 301 is not pushed by the push rod 210, the spring 302 is contracted, the spring 302 drives the beating plate 301 to reset, and the beating plate 301 moves reciprocatingly in this process, the beating plate 301 shakes off the impurities attached to the cotton through the reciprocating beating action, prevents the cotton from being mixed with the impurities closely, and part of the impurities such as small cotton leaves and cotton shells are attached to the cotton, which is difficult to separate completely and affects the quality of the cotton; The spring 302 drives the beating plate 301 to reset, and the beating plate 301 moves reciprocatingly in this process, while the beating plate 301 pulls the adjusting frame 304 through the first connecting rod 303 during the downward beating process, the side of the adjusting frame 304 which is pulled moves downward, the other side of the adjusting frame 304 drives the flap 305 to fold upward, the lower end of the flap 305 drives the beaten cotton to turn over through the teeth, so that the softer side of the cotton after beating contacts the transmission mesh belt 203, promotes the shedding efficiency and quality of the impurities in the cotton when the transmission mesh belt 203 drives the cotton to vibrate, and when the beating plate 301 moves upward, the flap 305 is reset through the first connecting rod 303 pushing the adjusting frame 304, and the flap 305 is reciprocally folded through the reciprocating movement of the beating plate 301; While the beating plate 301 drives the flap 305 to reciprocally fold, the second connecting rod 307 is angle-adjusted through the fixed seat 310, so as to reciprocally move with the flap 305, the second connecting rod 307 drives the shaking plate 308 to reciprocally swing, and the brush 309 at the lower end of the shaking plate 308 reciprocally swings on the cotton roller 206 to clean the cotton wound on the cotton roller 206, so as to prevent the cotton from winding on the cotton roller 206 when the cotton roller 206 is carding, and affect the carding efficiency of the cotton roller 206; The roller 202 drives the cotton roller 206 to rotate, and the cotton roller 206 scatters the cotton, so that the cotton is more evenly distributed on the conveyor belt. The roller 202 drives the cotton roller 206 to rotate, and also drives the eccentric wheel 209 to rotate, so that the transmission mesh belt 203 vibrates, promoting the rapid separation of impurities in the cotton, improving the efficiency of impurity separation in the cotton. The eccentric wheel 209 also drives the beating plate 301 to beat the cotton, which shakes off the impurities attached to the cotton. While the beating plate 301 reciprocates and beats, the beating plate 301 drives the turning plate 305 to turn down, which turns over the cotton after beating, so that the side of the cotton that is beaten more soft contacts the transmission mesh belt 203, promoting the vibration of the transmission mesh belt 203 driving the cotton, and improving the efficiency of impurity separation.

[0021] In an optional embodiment, the lower end of the protective frame 1 is fixedly installed with a collection frame 101, which is arranged below the transmission mesh belt 203. The impurities separated by the vibration of the transmission mesh belt 203 fall into the collection frame 101, which facilitates the collection and processing by the construction personnel.

[0022] In an optional embodiment, one end of a group of roller shafts 202 extends through the protective frame 1 and is installed, and a motor 201 is rotatably connected to one end of the roller shaft 202. The construction personnel starts the motor 201, which drives the roller shaft 202 to rotate, and the roller shaft 202 drives the transmission mesh belt 203 to rotate, so that the cotton is transmitted on the transmission mesh belt 203.

[0023] In an optional embodiment, the roller 202 is fixedly installed with a first gear 204, and the cotton roller 206 is fixedly installed at one end of a second gear 205. The first gear 204 is meshed with the second gear 205 on one side. The roller 202 drives the first gear 204 to rotate, and the first gear 204 is meshed with the second gear 205. The first gear 204 drives the second gear 205 to rotate, and the second gear 205 drives the cotton roller 206 to rotate, so that the cotton roller 206 combs the cotton more evenly.

[0024] In an optional embodiment, the roller 202 is provided with a belt 207, one end of the belt 207 is fixedly connected to a rotating rod 208, both ends of the rotating rod 208 extend through the protective frame 1 and are fixedly connected to eccentric wheels 209, and the other two sets of eccentric wheels 209 are arranged inside the transmission mesh belt 203. The roller 202 drives the rotating rod 208 to rotate through the belt 207, and the rotating rod 208 drives the four sets of eccentric wheels 209 to rotate. Because the rotation axes of the eccentric wheels 209 and the rotating rod 208 are not on the same axis, the eccentric wheels 209 rotate eccentrically. Two sets of eccentric wheels 209 inside the transmission mesh belt 203 drive the transmission mesh belt 203 to vibrate, which can promote the impurities in the cotton to be quickly separated out. The other two sets of eccentric wheels 209 drive the push rod 210 to rotate and transmit power.

[0025] In an optional embodiment, the lower ends of the two sets of beating plates 301 are fixedly connected with springs 302, the lower ends of the springs 302 are fixedly connected to the protective frame 1, and the push rod 210 pushes the beating plates 301 to rise. At this time, the springs 302 are stretched, the push rod 210 rotates away from the position of the beating plates 301, the beating plates 301 are not subjected to the pushing force of the push rod 210, the springs 302 contract, and the beating plates 301 are reset by the springs 302, so that the beating plates 301 move reciprocatingly in this process.

[0026] In an optional embodiment, the upper ends of the two sets of beating plates 301 are fixedly connected with first connecting rods 303, the other ends of the first connecting rods 303 are rotatably connected to an adjusting frame 304, and connecting rods are fixedly installed on both sides of a turning plate 305. The two sets of connecting rods are fixedly installed on the adjusting frame 304. The beating plates 301 pull the adjusting frame 304 through the first connecting rods 303, and one side of the adjusting frame 304 moves downward when the adjusting frame 304 is pulled. The other side of the adjusting frame 304 drives the turning plate 305 to be folded upward through the connecting rods.

[0027] In an optional embodiment, the two sets of connecting rods are rotatably connected to a fixed frame 306, and the lower end of the fixed frame 306 is fixedly installed on the protective frame 1. The lower end of the turning plate 305 is provided with teeth, and the lower end of the turning plate 305 drives the beaten cotton to be turned over through the teeth, so that the softer side of the cotton is in contact with the transmission mesh belt 203.

[0028] In an optional embodiment, one side of the turning plate 305 is fixedly provided with a fixed seat 310, the fixed seat 310 is rotatably connected with a second connecting rod 307, and the turning plate 305 is angle-adjusted through the fixed seat 310 to drive the second connecting rod 307 to move reciprocatingly. The lower end of the shaking plate 308 is provided with a brush 309, and the brush 309 at the lower end of the shaking plate 308 reciprocatingly swings on the cotton roller 206 to clean the cotton wound on the cotton roller 206.

[0029] Working principle: the operator starts the motor 201, the motor 201 drives the roller 202 to rotate, the roller 202 drives the transmission mesh belt 203 to rotate, the operator places the cotton on the transmission mesh belt 203 for transmission, the roller 202 drives the first gear 204 to rotate, the first gear 204 is engaged with the second gear 205, the first gear 204 drives the second gear 205 to rotate, the second gear 205 drives the cotton roller 206 to rotate, the cotton roller 206 is provided with a certain density of needle teeth, when the cotton passes through the cotton roller 206, the needle teeth will scatter the accumulated cotton, and make it evenly distributed on the conveyor belt, so that the cotton roller 206 can make the cotton more evenly, prevent some cotton from being affected by environmental factors, some of which are thicker, which can easily cause uneven distribution on the conveyor belt, resulting in poor separation of impurities in subsequent transmission, and poor separation effect of impurities; The roller 202 drives the transmission mesh belt 203 to rotate, and at the same time, the roller 202 drives the rotating rod 208 to rotate through the belt 207, the rotating rod 208 drives the four groups of eccentric wheels 209 to rotate, because the rotating shafts of the eccentric wheels 209 and the rotating rod 208 are not on the same axis, the eccentric wheels 209 rotate eccentrically, two of the four groups of eccentric wheels 209 inside the transmission mesh belt 203 will drive the transmission mesh belt 203 to vibrate, the vibration can promote the impurities in the cotton to be separated out quickly, improve the separation efficiency of the impurities in the cotton, and the separated impurities fall into the collecting frame 101, which is convenient for the operator to collect and process; The rotating rod 208 drives the four groups of eccentric wheels 209 to rotate, and at the same time, the other two groups of eccentric wheels 209 drive the push rod 210 to rotate, the push rod 210 rotates to the position of the beating plate 301, the push rod 210 pushes the beating plate 301 up, at this time the spring 302 is stretched, the push rod 210 rotates away from the position of the beating plate 301, the beating plate 301 is not pushed by the push rod 210, the spring 302 is contracted, the spring 302 drives the beating plate 301 to reset, the beating plate 301 moves back and forth in this process, the beating plate 301 shakes off the impurities attached to the cotton through the back and forth beating action, prevents the cotton and impurities from mixing closely, some impurities such as small cotton leaves and cotton shells will adhere to the cotton, which is difficult to separate completely, affecting the quality of the cotton; The spring 302 drives the beating plate 301 to reset, the beating plate 301 moves back and forth in this process, while beating down, the beating plate 301 pulls the adjusting frame 304 through the first connecting rod 303, the adjusting frame 304 moves downward on one side, the other side of the adjusting frame 304 drives the flap 305 to fold upward, the lower end of the flap 305 drives the beaten cotton to turn over through the teeth, so that the softer side of the cotton is in contact with the transmission mesh belt 203, which promotes the efficiency and quality of the cotton impurities falling off when the transmission mesh belt 203 drives the cotton to vibrate. When the turnover plate 305 reciprocatingly turns over, the turnover plate 305 is angle-adjusted by the fixing seat 310, drives the second connecting rod 307 to reciprocatingly move, so that the second connecting rod 307 drives the swing plate 308 to reciprocatingly swing, and the brush 309 at the lower end of the swing plate 308 reciprocatingly swings on the cotton roller 206 to clean the cotton wound on the cotton roller 206, so as to prevent the cotton roller 206 from winding the cotton when the cotton is carded, and affect the carding efficiency of the cotton roller 206.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cotton processing and conveying device with impurity separation function, comprising a protective frame (1), characterized in that, The protective frame (1) is internally provided with a conveying assembly (2), the conveying assembly (2) comprises two groups of roller rods (202) rotating on the protective frame (1), the two groups of roller rods (202) are movably connected with a transmission mesh belt (203), the roller rods (202) are movably connected with cotton rollers (206), the roller rods (202) are movably connected with rotating rods (208), the rotating rods (208) are provided with four groups of rotating rods (208), and two groups of the rotating rods (208) are movably connected with push rods (210) on one side. The protective frame (1) is internally provided with an auxiliary assembly (3), the auxiliary assembly (3) comprises two groups of beating plates (301), the two groups of beating plates (301) are movably connected with the push rods (210) at lower ends, the two groups of beating plates (301) are movably connected with first connecting rods (303) at upper ends, the first connecting rods (303) are movably connected with adjusting frames (304) at one ends, the adjusting frames (304) are movably connected with turning plates (305) on one sides, the turning plates (305) are movably connected with second connecting rods (307) on one sides, the second connecting rods (307) are movably connected with shaking plates (308) on one sides, and the shaking plates (308) are movably connected with the protective frame (1) on two sides.

2. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, The protective frame (1) is movably connected with a collecting frame (101) at a lower end.

3. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, One end of one group of the roller rods (202) extends through the protective frame (1) and is movably connected with a motor (201).

4. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, The roller rods (202) are movably connected with first gears (204), the cotton rollers (206) are movably connected with second gears (205) at one ends, and the first gears (204) are movably connected with the second gears (205) on one sides.

5. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, The roller rods (202) are movably connected with belts (207), the belts (207) are movably connected with the rotating rods (208) at one ends, the rotating rods (208) extend through the protective frame (1) at two ends and are movably connected with eccentric wheels (209) at the two ends, and the other two groups of the eccentric wheels (209) are arranged in the transmission mesh belt (203).

6. The cotton processing and conveying device with impurity separation function according to claim 5, characterized in that, The two groups of beating plates (301) are movably connected with springs (302) at lower ends, and the springs (302) are movably connected with the protective frame (1) at lower ends.

7. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, The two groups of beating plates (301) are movably connected with the first connecting rods (303) at upper ends, the first connecting rods (303) are movably connected with the adjusting frames (304) at the other ends, the turning plates (305) are movably connected with connecting rods at two sides, and the two groups of the connecting rods are movably connected with the adjusting frames (304).

8. The cotton processing and conveying device with impurity separation function according to claim 7, characterized in that, The two groups of the connecting rods are movably connected with a fixed frame (306), the fixed frame (306) is movably connected with the protective frame (1) at a lower end, and the turning plates (305) are movably connected with teeth at lower ends.

9. The cotton processing and conveying device with impurity separation function according to claim 1, characterized in that, One side of the turnover plate (305) is fixedly provided with a fixed seat (310), the fixed seat (310) is rotationally connected with a second connecting rod (307), and the lower end of the shaking plate (308) is provided with a brush (309).

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