A kind of wool sweater production, processing, printing and dyeing equipment

Abstract

The utility model belongs to the technical field of wool sweater production and processing, and specifically is a wool sweater production and processing printing and dyeing equipment, comprising a printing and dyeing table; a printing and dyeing machine is fixedly connected to the top of the printing and dyeing table; two hydraulic cylinders are fixedly connected to the bottom of the printing and dyeing machine; two output ends of the hydraulic cylinders are fixedly connected to printing and dyeing plates; two fixed plates are fixedly connected to the side walls of the printing and dyeing plates; the two fixed plates are arranged oppositely; a sliding bar is fixedly connected to the side walls of the fixed plates; one end of the sliding bar is arranged in a semicircular arc; a sliding block is slidably connected to the middle of the sliding bar; a fixed rod is fixedly connected to the middle of the sliding block; the side walls of the two fixed rods are rotatably connected to the first roller; the fluff adhered to the bottom of the printing and dyeing plate can be cleaned by the first roller, which can effectively reduce the clarity and accuracy of the printed color caused by the fluff adhered to the printing and dyeing plate during the printing and dyeing process, and can reduce the problem of uneven contact between the fluff at the bottom of the printing and dyeing plate and the wool sweater fabric.

Description

Technical Field

[0001] The utility model belongs to the technical field of wool sweater production and processing, in particular to a wool sweater production, processing, printing and dyeing equipment. Background Art

[0002] A woolen sweater is a knitted sweater made from wool. It has the advantages of good elasticity, strong moisture absorption and good warmth retention.

[0003] The production and processing of wool sweaters first requires the prepared wool raw materials to be spun, the wool fibers are spun into yarn through a spinning machine, the spun yarn is then woven through a weaving machine to form fabric, the woven fabric is then printed and dyed, and the sweater is cut and sewn to size to form a finished garment.

[0004] During the printing and dyeing process of wool sweaters, the dye is printed onto the wool fabric by applying pressure to the dyeing plate. The dyeing plate is in contact with the wool fabric during the printing and dyeing process. The fluff on the wool fabric easily adheres to the surface of the dyeing plate, resulting in uneven printing and dyeing colors.

[0005] To this end, the utility model provides a wool sweater production, processing, printing and dyeing equipment. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a wool sweater production and processing printing and dyeing equipment described in the utility model comprises a printing and dyeing table; a printing and dyeing machine is fixedly connected to the top of the printing and dyeing table; two hydraulic cylinders are fixedly connected to the bottom of the printing and dyeing machine; two output ends of the hydraulic cylinders are fixedly connected to printing and dyeing plates; two fixed plates are fixedly connected to the side walls of the printing and dyeing plates; the two fixed plates are arranged oppositely; a sliding rod is fixedly connected to the side walls of the fixed plates; one end of the sliding rod is arranged in a semicircular arc; a sliding block is slidably connected to the middle of the sliding bar; a fixed rod is fixedly connected to the middle of the sliding block; the side walls of the two fixed rods are rotatably connected to the first roller; a pull rope is fixedly connected to the middle of the sliding block; the other end of the pull rope is fixedly connected to one side of the bottom of the printing and dyeing machine ; The middle part of the slider is rotatably connected with multiple groups of ball bearings; the side wall of the fixed plate is fixedly connected with a spring; the other end of the spring is fixedly connected to the side wall of the slider; the fluff adhering to the bottom of the printing and dyeing plate can be cleaned by the first roller, which can effectively reduce the fluff adhering to the printing and dyeing plate during the printing and dyeing process, causing the clarity and accuracy of the printed color to be reduced, and can reduce the problem of uneven contact between the fluff at the bottom of the printing and dyeing plate and the wool sweater fabric, effectively reduce the problem of uneven color or blurred pattern caused by the fluff adhering to the bottom of the printing and dyeing plate not being cleaned in time during the printing and dyeing process, and can effectively reduce the fluff accumulation at the bottom of the printing and dyeing plate for a long time, causing aggravated wear, thereby effectively improving the quality and efficiency of wool sweater printing and dyeing.

[0008] Preferably, a support rod is fixedly connected to the middle part of the sliding rod; the support rod is fixedly connected to one end away from the fixed plate; the two ends of the support rods are fixedly connected to support plates; the support plates are arranged in an arc shape; a rubber plate is fixedly connected to the middle part of the support plates; the rubber plate can effectively remove the fluff on the surface of the first roller, and the fluff can be removed after the first roller cleans the printing and dyeing plate, effectively reducing the fluff that adheres to the printing and dyeing plate again after the first roller cleans the bottom of the printing and dyeing plate, effectively reducing the secondary contamination of the bottom of the printing and dyeing plate, and can thoroughly clean the printing and dyeing plate and the first roller, and can reduce the problem of scratches or damages on the surface of the first roller caused by hard objects cleaning, effectively improving the cleanliness and quality of the wool sweater printing and dyeing process.

[0009] Preferably, a first magnet is fixedly connected to the side wall of the slider; a second magnet is fixedly connected to the middle of the slider; the second magnet is fixedly connected to one end of the slider close to the support rod; the first magnet and the second magnet attract each other when they are close to each other; the attraction between the first magnet and the second magnet can effectively fix the slider during the process of printing and dyeing the cloth on the printing and dyeing plate, effectively reduce the shaking or sliding of the slider in the middle of the slider, effectively reduce the printing and dyeing failure caused by the sliding of the slider, and can effectively increase the stability and reliability of the slider, thereby improving the efficiency of wool sweater printing and dyeing.

[0010] Preferably, a hot air pump is fixedly connected to the side wall of the printing and dyeing table; a connecting pipe is fixedly connected to the middle of the hot air pump; two exhaust pipes are fixedly connected to the end of the connecting pipe; a plurality of exhaust holes are opened in the middle of the exhaust pipe; the plurality of exhaust holes are evenly distributed in the middle of the exhaust pipe; by blowing hot air to the surface of the cloth, the evaporation of water on the surface of the cloth can be accelerated, and the drying speed of the cloth after printing and dyeing can be effectively accelerated, and the hot air can effectively make the dye better penetrate into the wool fiber, effectively improve the uniformity and depth of dyeing, effectively reduce the problem of uneven color caused by the migration of dye due to excessive moisture, and can keep the color stable and accurate, and effectively make the dyeing effect more durable.

[0011] Preferably, two support frames are fixedly connected to the middle part of the exhaust pipe; the two support frames are arranged opposite to each other; a second roller is rotatably connected to the middle part of the support frame; the second roller can effectively reduce the contact between the cloth and the exhaust pipe after printing and dyeing, effectively reduce the unfixed dye remaining on the surface of the cloth after printing and dyeing, effectively reduce the pollution caused by the color on the surface of the cloth, and can make the cloth be transmitted stably, reduce the swinging and shaking of the cloth during the transmission process, and can effectively reduce the problem of wrinkles or deformation caused by the contact between the cloth and the exhaust pipe, thereby improving the cloth production efficiency.

[0012] Preferably, a filter is installed in the middle of the exhaust hole; the filter is fixedly connected to the middle of the exhaust hole; the filter can effectively reduce the dust and impurities in the air from entering the exhaust pipe through the exhaust hole, effectively reduce the accumulation of dust and impurities in the exhaust pipe, effectively reduce the problem of difficulty in cleaning caused by the accumulation of dust and impurities, and reduce the dust and impurities from drifting to the surface of the cloth when blowing air on the cloth, and effectively reduce the dust and impurities from being adsorbed on the cloth dye, resulting in a decrease in printing and dyeing quality.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The wool sweater production, processing and printing and dyeing equipment described in the utility model can clean the fluff adhered to the bottom of the printing and dyeing plate through the first roller, which can effectively reduce the clarity and accuracy of the printed color caused by the fluff adhered to the printing and dyeing plate during the printing and dyeing process, and can reduce the problem of uneven contact between the fluff on the bottom of the printing and dyeing plate and the wool sweater fabric, and effectively reduce the problem of uneven color or blurred pattern in the printing and dyeing process caused by the fluff adhered to the bottom of the printing and dyeing plate not being cleaned in time.

[0015] 2. The wool sweater production, processing and printing and dyeing equipment described in the utility model can effectively remove the fluff on the surface of the first roller through the rubber plate, and can remove the fluff after the first roller cleans the printing and dyeing plate, effectively reducing the fluff that adheres to the printing and dyeing plate again after the first roller cleans the bottom of the printing and dyeing plate, and effectively reducing the secondary contamination of the bottom of the printing and dyeing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a wool sweater production, processing, printing and dyeing equipment in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the slide bar in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the rubber plate in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the ball in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the second roller in the utility model;

[0022] In the figure: 1. printing and dyeing table; 10. printing and dyeing machine; 11. hydraulic cylinder; 12. printing and dyeing plate; 13. fixed plate; 14. sliding rod; 15. sliding block; 16. fixed rod; 17. first roller; 18. pull rope; 19. ball bearing; 20. spring; 2. support rod; 21. support plate; 22. rubber plate; 3. first magnet; 31. second magnet; 4. hot air pump; 41. connecting pipe; 42. exhaust pipe; 43. exhaust hole; 5. support frame; 51. second roller; 6. filter screen; 7. rubber pad. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figures 1 to 4As shown, a wool sweater production and processing printing and dyeing equipment described in an embodiment of the utility model comprises a printing and dyeing table 1; a printing and dyeing machine 10 is fixedly connected to the top of the printing and dyeing table 1; two hydraulic cylinders 11 are fixedly connected to the bottom of the printing and dyeing machine 10; the output ends of the two hydraulic cylinders 11 are fixedly connected to the printing and dyeing plates 12; the side walls of the printing and dyeing plates 12 are fixedly connected to two fixed plates 13; the two fixed plates 13 are arranged oppositely; the side walls of the fixed plates 13 are fixedly connected to the sliding rods 14; one end of the sliding rod 14 is arranged in a semicircular arc; a sliding block 15 is slidably connected to the middle of the sliding block 14; a fixing rod 16 is fixedly connected to the middle of the sliding block 15; the side walls of the two fixing rods 16 are rotating The slider 15 is rotatably connected to a first roller 17; a pull rope 18 is fixedly connected to the middle of the slider 15; the other end of the pull rope 18 is fixedly connected to one side of the bottom of the printing and dyeing machine 10; the middle of the slider 15 is rotatably connected to multiple sets of balls 19; a spring 20 is fixedly connected to the side wall of the fixed plate 13; the other end of the spring 20 is fixedly connected to the side wall of the slider 15; when working, the woolen sweater fabric is unwound from one end of the printing and dyeing table 1 to the other end to control the fabric conveying speed. When the printing and dyeing work is carried out, the dye inside the printing and dyeing machine 10 enters the bottom of the printing and dyeing plate 12 through the conveying pipe, and the printing and dyeing plate 12 is moved downward by two hydraulic cylinders 11. When the printing and dyeing plate 12 moves, the two pull ropes The slider 18 pulls the slider 15, so that the multiple groups of balls 19 inside the slider 15 roll on the surface of the slide bar 14. At this time, the first roller 17 is attached to the bottom of the printing and dyeing plate 12 and rotates at the same time. The printing and dyeing position at the bottom of the printing and dyeing plate 12 is cleaned by the first roller 17. When the printing and dyeing plate 12 is about to be attached to the cloth, the slider 15 is pulled to the other end of the slide bar 14 by the pull rope 18, and the spring 20 is elastically stretched as the slider 15 moves; the printing and dyeing plate 12 is attached to the cloth and printed. When the printing and dyeing of the cloth is completed, the printing and dyeing plate 12 is moved upward by the two hydraulic cylinders 11. When the printing and dyeing plate 12 moves upward, the spring 20 is pulled upward. 20 elasticity enables the slider 15 to reset, and the fluff adhered to the bottom of the printing plate 12 can be cleaned through the first roller 17, which can effectively reduce the clarity and accuracy of the printed color caused by the fluff adhered to the printing plate 12 during the printing and dyeing process, and can reduce the problem of uneven contact between the fluff at the bottom of the printing and dyeing plate 12 and the wool sweater fabric, and effectively reduce the problem of uneven color or blurred pattern in the printing and dyeing process caused by the fluff adhered to the bottom of the printing and dyeing plate 12 not being cleaned in time, and can effectively reduce the long-term accumulation of fluff at the bottom of the printing and dyeing plate 12 causing aggravated wear, thereby effectively improving the quality and efficiency of wool sweater printing and dyeing.

[0025] like Figures 1 to 3As shown, the middle of the slide bar 14 is fixed with a support rod 2; the support rod 2 is fixed at one end away from the fixed plate 13; the ends of the two support rods 2 are fixed with support plates 21; the support plates 21 are arranged in an arc shape; the middle of the support plates 21 is fixed with a rubber plate 22; when working, when the slider 15 moves to one end of the slide bar 14, the first roller 17 moves to the surface of the rubber plate 22 with the slider 15, and the clean fluff on the surface of the first roller 17 is adhered by the rubber plate 22, so that the first roller 17 takes out the fluff at the bottom of the printing plate 12 and then the first roller 17 is moved to the surface of the rubber plate 22. 7 surface is cleaned, and the lint on the surface of the first roller 17 can be effectively removed by the rubber sheet 22, so that the lint can be removed after the first roller 17 cleans the printing and dyeing plate 12, and the lint can be effectively reduced after the first roller 17 cleans the bottom of the printing and dyeing plate 12 and adheres to the printing and dyeing plate 12 again, and the secondary contamination of the bottom of the printing and dyeing plate 12 can be effectively reduced, so that the printing and dyeing plate 12 and the first roller 17 can be thoroughly cleaned, and the problem of scratches or damages on the surface of the first roller 17 caused by hard objects cleaning can be reduced, so as to effectively improve the cleanliness and quality of the wool sweater printing and dyeing process.

[0026] like Figure 3 and Figure 4 As shown, the side wall of the slider 15 is fixedly connected to the first magnet 3; the middle part of the slide bar 14 is fixedly connected to the second magnet 31; the second magnet 31 is fixedly connected to one end of the slide bar 14 close to the support rod 2; the first magnet 3 and the second magnet 31 attract each other when they are close to each other; during operation, when the slider 15 moves to one end of the slide bar 14, the first magnet 3 and the second magnet 31 generate suction when they are close to each other, so that the slider 15 is fixed to one end of the slide bar 14 during the printing and dyeing process of the cloth, and the first magnet 3 and the second magnet 31 attract each other, so that the printing and dyeing plate 12 can effectively fix the slider 15 during the printing and dyeing process of the cloth, effectively reducing the shaking or sliding of the slider 15 in the middle part of the slide bar 14, effectively reducing the printing and dyeing failure caused by the sliding of the slider 15, and can effectively increase the stability and reliability of the slider 15, thereby improving the efficiency of the printing and dyeing work of the wool sweater.

[0027] like Figure 1 and Figure 5As shown, a hot air pump 4 is fixedly connected to the side wall of the printing and dyeing table 1; a connecting pipe 41 is fixedly connected to the middle of the hot air pump 4; two exhaust pipes 42 are fixedly connected to the end of the connecting pipe 41; a plurality of exhaust holes 43 are opened in the middle of the exhaust pipe 42; the plurality of exhaust holes 43 are evenly distributed in the middle of the exhaust pipe 42; when working, the cloth passes through the middle of the two exhaust pipes 42, and the hot air pump 4 is powered on and turned on to generate a hot air flow inside, and the hot air flow enters the two exhaust pipes 42 through the connecting pipe 41; and then the hot air flow is blown to the surface of the cloth through the plurality of exhaust holes 43. By blowing hot air to the surface of the cloth, the evaporation of moisture on the surface of the cloth can be accelerated, and the drying speed of the cloth after printing and dyeing can be effectively accelerated. In addition, the hot air can effectively make the dye penetrate into the wool fiber better, effectively improve the uniformity and depth of dyeing, effectively reduce the problem of uneven color caused by the migration of dyes due to excessive moisture, and can keep the color stable and accurate, and effectively make the dyeing effect more durable.

[0028] like Figure 5 As shown, two support frames 5 are fixedly connected to the middle of the exhaust pipe 42; the two support frames 5 are arranged opposite to each other; the middle of the support frame 5 is rotatably connected to the second roller 51; during operation, during the printing and dyeing process of the cloth, the two sides of the cloth are passed through the middle of the two second rollers 51, so that the two second rollers 51 are in contact with the cloth, and the second rollers 51 are driven to rotate simultaneously during the movement of the cloth for printing and dyeing, and the second rollers 51 can effectively reduce the contact between the cloth and the exhaust pipe 42 after printing and dyeing through the second rollers 51, effectively reduce the unfixed dyes remaining on the surface of the cloth after printing and dyeing, effectively reduce the pollution caused by the color on the surface of the cloth, and can make the cloth stably transported, reduce the swinging and shaking of the cloth during the transmission process, and can effectively reduce the problem of wrinkles or deformation caused by the contact between the cloth and the exhaust pipe 42, thereby improving the cloth production efficiency.

[0029] like Figure 5 As shown, a filter screen 6 is installed in the middle of the exhaust hole 43; the filter screen 6 is fixedly connected to the middle of the exhaust hole 43; during operation, when the cloth is being blown during printing and dyeing, the filter screen 6 blocks dust and impurities in the air from entering the exhaust pipe 42, and the filter screen 6 can effectively reduce the dust and impurities in the air from entering the exhaust pipe 42 through the exhaust hole 43, and can effectively reduce the accumulation of dust and impurities in the exhaust pipe 42, and effectively reduce the problem of dust and impurities being difficult to clean due to accumulation, and can reduce the dust and impurities from being scattered to the surface of the cloth when blowing air to the cloth, and effectively reduce the dust and impurities from being adsorbed on the cloth dye to cause the printing and dyeing quality to decline.

[0030] like Figure 5As shown, a rubber pad 7 is installed in the middle of the second roller 51; the rubber pad 7 is fixedly connected to the middle of the second roller 51; during operation, when the two second rollers 51 clamp the cloth and rotate, the rubber pad 7 contacts the surface of the cloth, and the rubber pad 7 can make the wool sweater cloth more stable in the two second rollers 51, effectively reducing the problem of sliding or deflection of the cloth during movement, and can effectively reduce the damage caused by the contact between the second roller 51 and the cloth, effectively improving the quality of the cloth processing and printing and dyeing process.

[0031] During operation, the wool sweater fabric is unwound from one end of the printing and dyeing table 1 to the other end, and the fabric conveying speed is controlled. When the printing and dyeing work is performed, the dye inside the printing and dyeing machine 10 enters the bottom of the printing and dyeing plate 12 through the conveying pipe, and the printing and dyeing plate 12 is moved downward by two hydraulic cylinders 11. When the printing and dyeing plate 12 moves, two pull ropes 18 pull the slider 15, so that the multiple groups of balls 19 inside the slider 15 roll on the surface of the slide bar 14. At this time, the first roller 17 is attached to the bottom of the printing and dyeing plate 12 and rotates at the same time, and the printing and dyeing plate 12 is moved by the first roller 17. 12 is cleaned at the bottom printing and dyeing position. When the printing and dyeing plate 12 is about to be attached to the cloth, the slider 15 is pulled to the other end of the slide bar 14 by the pull rope 18, and the spring 20 is elastically stretched as the slider 15 moves; the printing and dyeing plate 12 is attached to the cloth and then printed and dyed. When the printing and dyeing of the cloth is completed, the printing and dyeing plate 12 is moved upward by the two hydraulic cylinders 11. When the printing and dyeing plate 12 moves upward, the slider 15 is reset by the elasticity of the spring 20. When the slider 15 moves to one end of the slide bar 14, the first roller 17 and the slider are moved upward. 15 moves to the surface of the rubber plate 22, and the clean fluff on the surface of the first roller 17 is adhered to the rubber plate 22, so that the first roller 17 removes the fluff at the bottom of the printing and dyeing plate 12 and cleans the surface of the first roller 17. When the slider 15 moves to one end of the slide bar 14, the first magnet 3 and the second magnet 31 are close to each other to generate suction, so that the slider 15 is fixed at one end of the slide bar 14 during the printing and dyeing process of the cloth. The cloth passes through the middle of the two exhaust pipes 42, and the hot air pump 4 is powered on and turned on to generate hot air flow inside, and the hot air flow enters through the connecting pipe 41 The hot air is blown to the surface of the cloth through the multiple exhaust holes 43. During the printing and dyeing process of the cloth, the two sides of the cloth are passed through the middle of the two second rollers 51, so that the two second rollers 51 are in contact with the cloth. During the movement of the cloth for printing and dyeing, the second rollers 51 are driven to rotate at the same time. When the cloth is blown during printing and dyeing, the filter 6 blocks the dust and impurities in the air from entering the exhaust pipe 42. When the two second rollers 51 clamp the cloth and rotate, they are in contact with the surface of the cloth through the rubber pad 7.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wool sweater production and dyeing equipment, comprising a dyeing table (1); characterized in that: The top of the printing and dyeing table (1) is fixedly connected to a printing and dyeing machine (10); the bottom of the printing and dyeing machine (10) is fixedly connected to two hydraulic cylinders (11); the output ends of the two hydraulic cylinders (11) are fixedly connected to a printing and dyeing plate (12); the side walls of the printing and dyeing plate (12) are fixedly connected to two fixed plates (13); the two fixed plates (13) are arranged opposite to each other; the side walls of the fixed plates (13) are fixedly connected to a sliding bar (14); one end of the sliding bar (14) is arranged in a semicircular arc; the middle of the sliding bar (14) is slidably connected to a sliding block (15); a fixed rod (16) is fixedly connected to the middle of the slider (15); the side walls of the two fixed rods (16) are rotatably connected to a first roller (17); a pull rope (18) is fixedly connected to the middle of the slider (15); the other end of the pull rope (18) is fixedly connected to one side of the bottom of the printing and dyeing machine (10); a plurality of groups of balls (19) are rotatably connected to the middle of the slider (15); a spring (20) is fixedly connected to the side wall of the fixed plate (13); the other end of the spring (20) is fixedly connected to the side wall of the slider (15).

2. The wool sweater production, processing, printing and dyeing equipment according to claim 1, characterized in that: A support rod (2) is fixedly connected to the middle of the sliding rod (14); the support rod (2) is fixedly connected to one end away from the fixed plate (13); the two ends of the support rod (2) are fixedly connected to support plates (21); the support plates (21) are arranged in an arc shape; and a rubber plate (22) is fixedly connected to the middle of the support plate (21).

3. The wool sweater production, processing, printing and dyeing equipment according to claim 2, characterized in that: A first magnet (3) is fixedly connected to the side wall of the slider (15); a second magnet (31) is fixedly connected to the middle of the slide bar (14); the second magnet (31) is fixedly connected to one end of the slide bar (14) close to the support bar (2); and the first magnet (3) and the second magnet (31) attract each other when they are close to each other.

4. The wool sweater production, processing, printing and dyeing equipment according to claim 3 is characterized by: A hot air pump (4) is fixedly connected to the side wall of the printing and dyeing table (1); a connecting pipe (41) is fixedly connected to the middle of the hot air pump (4); two exhaust pipes (42) are fixedly connected to the ends of the connecting pipe (41); a plurality of groups of exhaust holes (43) are provided in the middle of the exhaust pipe (42); and the plurality of groups of exhaust holes (43) are equidistantly distributed in the middle of the exhaust pipe (42).

5. The wool sweater production, processing, printing and dyeing equipment according to claim 4, characterized in that: Two support frames (5) are fixedly connected to the middle of the exhaust pipe (42); the two support frames (5) are arranged opposite to each other; and a second roller (51) is rotatably connected to the middle of the support frame (5).

6. The wool sweater production, processing, printing and dyeing equipment according to claim 5, characterized in that: A filter screen (6) is installed in the middle of the exhaust hole (43); the filter screen (6) is fixedly connected to the middle of the exhaust hole (43).

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