Colored spun yarn batting treatment device

Abstract

The invention discloses a colored spun yarn batting treatment device, which relates to the technical field of colored spun yarn batting treatment, and comprises a bottom mounting box, a waste storage box and a shunting negative pressure box, the two ends of the bottom of the inner side of the flow dividing negative pressure box are symmetrically provided with two barrel return stopping bases, the flow dividing negative pressure box is internally provided with a lead screw installation box, one side of the flow dividing negative pressure box is provided with a waste suction pipe, and the top of the flow dividing negative pressure box is provided with a box cover component. Two adsorption cylinders are arranged at the tops of the two cylinder return blocking bases respectively; two motor lead screw components are symmetrically arranged at the two ends of the interior of the lead screw mounting box. A negative pressure fan is arranged on one side of the top of the box cover part; two scraper components are arranged on the outer sides of the two adsorption cylinders respectively; and an exhaust pipe component is arranged on one side of the negative pressure fan. By means of the structure, batting can be alternately absorbed, batting attached to the outer wall of the adsorption box can be alternately scraped off, blocking and influence on batting absorption efficiency are avoided, the collected batting can be alternately cleaned, and shutdown and influence on working efficiency are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of colored spun yarn fluff processing, and in particular to a colored spun yarn fluff processing device. Background Art

[0002] Colored yarn is a special type of yarn. Its production process involves dyeing the fibers into colored fibers first, and then fully mixing two or more fibers of different colors to spin them into yarns with unique color mixing effects. Colored yarn is widely used in many fields due to its unique color and environmental protection characteristics. Initially, it was mainly used in underwear and knitted T-shirts, and later gradually expanded to sports and outdoor clothing, shirts and suits, denim clothing, home textiles, children's clothing, home clothing, special-purpose clothing and other fields.

[0003] In order to efficiently deal with the large amount of fluff generated by the production of colored yarn, existing colored yarn fluff treatment devices generally use negative pressure fan technology during operation. This technology can effectively absorb the fluff in the external environment and adsorb it on the filter net for centralized collection. However, after working for a long time, the filter net is prone to accumulate too much fluff, causing blockage and affecting the efficiency of absorbing fluff. And when the filter net needs to be cleaned of fluff, the device needs to be suspended, which will further reduce the working efficiency. Therefore, we propose a colored yarn fluff treatment device to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide a color spun yarn lint processing device to solve the existing color spun yarn lint processing device proposed in the above background technology. During operation, in order to efficiently deal with the large amount of lint problems derived from the color spun yarn production, negative pressure fan technology is generally used. This technology can effectively absorb the lint in the external environment and adsorb it on the filter net for centralized collection. However, after working for a long time, the filter net is prone to accumulate too much lint, causing blockage and affecting the efficiency of absorbing lint. And when the filter net needs to be cleaned of lint, the operation of the device needs to be suspended, which will further reduce the problem of working efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions: A device for processing colored spun yarn fluff, comprising a bottom installation box, two waste storage boxes are symmetrically arranged at both ends of the inner side of the bottom installation box, a shunt negative pressure box is arranged on the top of the bottom installation box, two cylinder resistance bases are symmetrically arranged at both ends of the inner bottom of the shunt negative pressure box, a screw installation box is arranged inside the shunt negative pressure box, a waste suction pipe is arranged on one side of the shunt negative pressure box, a box cover component is arranged on the top of the shunt negative pressure box, two adsorption cylinders are respectively arranged on the top of the two cylinder resistance bases, two motor screw components are symmetrically arranged at both ends of the screw installation box, a negative pressure fan is arranged on one side of the top of the box cover component, two scraper components are respectively arranged on the outside of the two adsorption cylinders, and an exhaust pipe component is arranged on one side of the negative pressure fan; The scraper component comprises an annular mounting plate, and a plurality of arc-shaped cone top blocks are evenly rotated around an axis at the bottom of the annular mounting plate, and the inner sides of the plurality of arc-shaped cone top blocks are inclined toward the outer sides, and the outer sides are higher than the inner sides.

[0006] Furthermore, the two waste storage boxes are respectively slidably connected to the bottom mounting box, and the diversion negative pressure box includes a waist-shaped negative pressure box, and two solenoid valve mounting tubes are symmetrically arranged at both ends of one side of the waist-shaped negative pressure box, and the bottom of the waist-shaped negative pressure box is fixedly connected to the bottom mounting box, and two waste suction solenoid valves are respectively arranged inside the two solenoid valve mounting tubes, and the solenoid valve mounting tubes are respectively fixedly connected to the two ends of the waist-shaped negative pressure box, and the two waste suction solenoid valves are respectively movably connected to the inner sides of the two solenoid valve mounting tubes.

[0007] Furthermore, the two cylinder anti-return bases include a cylinder base, and a plurality of anti-return rubber sheets are arranged on the bottom of the cylinder base to rotate evenly around the axis. The cylinder base is fixedly connected to the bottom of the waist-shaped negative pressure box, and the plurality of anti-return rubber sheets are fixedly connected to the cylinder base. The screw mounting box includes an mounting box, and two slide grooves are respectively arranged on both sides of the mounting box, and the two ends of the mounting box are respectively fixedly connected to the two sides of the inside of the waist-shaped negative pressure box, and two anti-flocculation rubber strips are respectively arranged on both sides of the two slide grooves, and the two anti-flocculation rubber strips are respectively fixedly connected to the mounting box on both sides of the slide groove, and one end of the waste suction pipe is fixedly connected to the two solenoid valve mounting pipes.

[0008] Furthermore, the bottoms of the two adsorption cylinders are movably connected to the two cylinder bases respectively.

[0009] Furthermore, the box cover component includes a motor mounting cover, and two cylinder covers are respectively arranged on the inner sides of both ends of the motor mounting cover, the bottom of the motor mounting cover is fixedly connected to the top of the waist-shaped negative pressure box, the two bottoms of the cylinder covers are respectively movably installed with two adsorption cylinders, the cylinder covers are slidably connected to the motor mounting cover, the inner side of the annular mounting plate is slidably connected to the outer wall of the adsorption cylinder, and the plurality of arc-shaped cone top blocks are fixedly connected to the annular mounting plate.

[0010] Furthermore, the two motor screw components include a motor, a drive shaft of the motor is provided with a screw through a motor mounting cover, the motor is fixedly connected to the motor mounting cover, a threaded block is provided on the screw, the bottom of the screw is rotatably connected to the mounting box, the top of the screw is fixedly connected to the drive shaft of the motor, the inner side of the threaded block is threadedly connected to the screw, one end of the threaded block passes through a slide groove and is fixedly connected to the annular mounting plate, and the threaded block is slidably connected to the slide groove.

[0011] Furthermore, the negative pressure fan is fixedly connected to the motor mounting cover.

[0012] Furthermore, the exhaust pipe component includes a shunt pipe, and two exhaust pipes are symmetrically arranged at both ends of the bottom of one end of the shunt pipe, and two exhaust solenoid valves are respectively arranged on the inner sides of the two ends of the bottom of the shunt pipe, and the other end of the shunt pipe is fixedly connected to the negative pressure fan. The two exhaust pipes are respectively passed through two cylinder covers and two exhaust filter heads are arranged. The tops of the exhaust pipes are respectively fixedly connected to the shunt pipes, and the outer sides of the exhaust pipes are fixedly connected to the cylinder covers. The two exhaust solenoid valves are respectively movably connected to the two ends of the bottom of the shunt pipe, and the two exhaust filter heads are respectively fixedly connected to the two exhaust pipes.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention arranges a negative pressure fan to extract the air inside the shunt negative pressure box through the exhaust pipe component to make it negative pressure, and then sucks in the fluff in the external environment through the waste suction pipe. Through two waste suction solenoid valves and the exhaust solenoid valve, the two adsorption cylinders can be controlled to alternately adsorb the fluff, and then the two scraper components are driven by the motor screw component to alternately scrape off the fluff adsorbed by the two adsorption cylinders, avoiding blockage, ensuring the efficiency of absorbing fluff, and avoiding shutdown to affect work efficiency.

[0014] 2. The present invention can respectively collect the fluff scraped off by the two adsorption cylinders by arranging two waste storage boxes at the bottom of the bottom installation box, and then clean the collected fluff alternately to avoid downtime and affect work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the diversion negative pressure box of the present invention; Figure 3 It is a schematic diagram of the installation structure of the cylinder resistance base of the present invention; Figure 4 It is a schematic diagram of the installation structure of the screw installation box of the present invention; Figure 5 It is a schematic diagram of the installation structure of the box cover component of the present invention; Figure 6 It is a schematic diagram of the structure of the motor screw component of the present invention; Figure 7 It is a schematic diagram of the installation structure of the scraper component of the present invention; Figure 8 It is a schematic diagram of the installation structure of the adsorption cylinder of the present invention; Fig. 9 It is a schematic diagram of the structure of the scraper component of the present invention; Fig.10 It is a schematic diagram of the installation structure of the air extraction pipe component of the present invention; 1. Bottom mounting box; 2. Waste storage box; 3. Diverter negative pressure box; 301. Waist-shaped negative pressure box; 302. Solenoid valve mounting tube; 303. Waste suction solenoid valve; 4. Cylinder return base; 401. Cylinder base; 402. Return rubber sheet; 5. Screw mounting box; 501. Mounting box; 502. Slide groove; 503. Block rubber strip; 6. Waste suction pipe; 7. Box cover component; 701. Motor mounting cover; 702. Cylinder cover; 8. Adsorption cylinder; 9. Motor screw component; 901. Motor; 902. Screw; 903. Threaded block; 10. Negative pressure fan; 11. Scraper component; 1101. Ring mounting plate; 1102. Arc cone top block; 12. Exhaust pipe component; 1201. Diverter pipe; 1202. Exhaust pipe; 1203. Exhaust solenoid valve; 1204. Exhaust filter head. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1: See also Figure 1-Figure 2 , Figure 4-Figure 7 , Figure 9-10 The present invention provides a technical solution: a colored spun yarn fluff processing device, comprising a bottom installation box 1, two waste storage boxes 2 are symmetrically arranged at both ends of the inner side of the bottom installation box 1, a shunt negative pressure box 3 is arranged on the top of the bottom installation box 1, two cylinder resistance bases 4 are symmetrically arranged at both ends of the inner bottom of the shunt negative pressure box 3, a screw installation box 5 is arranged inside the shunt negative pressure box 3, a waste suction pipe 6 is arranged on one side of the shunt negative pressure box 3, a box cover component 7 is arranged on the top of the shunt negative pressure box 3, two adsorption cylinders 8 are respectively arranged on the top of the two cylinder resistance bases 4, two motor screw components 9 are symmetrically arranged at both ends of the screw installation box 5, a negative pressure fan 10 is arranged on one side of the top of the box cover component 7, two scraper components 11 are respectively arranged on the outside of the two adsorption cylinders 8, and an exhaust pipe component 12 is arranged on one side of the negative pressure fan 10.

[0018] The scraper component 11 includes an annular mounting plate 1101, and a plurality of arc-shaped cone top blocks 1102 are evenly rotated around an axis at the bottom of the annular mounting plate 1101. The inner sides of the plurality of arc-shaped cone top blocks 1102 are inclined toward the outer sides, and the outer sides are higher than the inner sides.

[0019] The shunt negative pressure box 3 includes a waist-shaped negative pressure box 301, two electromagnetic valve installation tubes 302 are symmetrically arranged at both ends of one side of the waist-shaped negative pressure box 301, the bottom of the waist-shaped negative pressure box 301 is fixedly connected to the bottom installation box 1, and two waste suction electromagnetic valves 303 are respectively arranged inside the two electromagnetic valve installation tubes 302, and the electromagnetic valve installation tubes 302 are respectively fixedly connected to both ends of the waist-shaped negative pressure box 301, and the two waste suction electromagnetic valves 303 are respectively movably connected to the inner side of the two electromagnetic valve installation tubes 302. In this example, by setting two waste suction electromagnetic valves 303, the external fluff can be controlled separately, and they are respectively sucked into the two sides of the waist-shaped negative pressure box 301 separated by the screw installation box 5, so as to facilitate the subsequent scraping of the accumulated fluff.

[0020] The lead screw installation box 5 includes an installation box 501, two slide grooves 502 are respectively arranged on both sides of the installation box 501, and both ends of the installation box 501 are respectively fixedly connected to the two sides of the waist-shaped negative pressure box 301, and two lint-blocking rubber strips 503 are respectively arranged on both sides of the two slide grooves 502. The two lint-blocking rubber strips 503 are respectively fixedly connected to the installation box 501 on both sides of the slide grooves 502, and one end of the waste suction pipe 6 is respectively fixedly connected to the two solenoid valve installation pipes 302. In this example, by providing two lint-blocking rubber strips 503, lint can be prevented from entering the interior of the installation box 501 and affecting the working stability of the motor lead screw component 9.

[0021] The bottoms of the two adsorption cylinders 8 are movably connected to the two cylinder bases 401 respectively.

[0022] The box cover component 7 includes a motor installation cover 701, two cylinder covers 702 are respectively arranged on the inner sides of both ends of the motor installation cover 701, the bottom of the motor installation cover 701 is fixedly connected to the top of the waist-shaped negative pressure box 301, the bottoms of the two cylinder covers 702 are movably installed with two adsorption cylinders 8 respectively, the cylinder covers 702 are slidably connected to the motor installation cover 701, the inner side of the annular mounting plate 1101 is slidably connected to the outer wall of the adsorption cylinder 8, and a plurality of arc-shaped cone top blocks 1102 are fixedly connected to the annular mounting plate 1101. In this example, by providing the arc-shaped cone top blocks 1102, the anti-return rubber sheet 402 can be pushed out first, so that the fluff can be scraped off and fall into the waste storage box 2.

[0023] The two motor screw components 9 include a motor 901, a transmission shaft of the motor 901 passing through the motor mounting cover 701 and provided with a screw 902, the motor 901 is fixedly connected to the motor mounting cover 701, a threaded block 903 is provided on the screw 902, the bottom of the screw 902 is rotatably connected to the mounting box 501, the top of the screw 902 is fixedly connected to the transmission shaft of the motor 901, the inner side of the threaded block 903 is threadedly connected to the screw 902, one end of the threaded block 903 passes through the slide groove 502 and is fixedly connected to the annular mounting plate 1101, and the threaded block 903 is slidably connected to the slide groove 502.

[0024] The negative pressure fan 10 is fixedly connected to the motor mounting cover 701 .

[0025] The exhaust pipe component 12 includes a shunt pipe 1201, and two exhaust pipes 1202 are symmetrically arranged at both ends of the bottom of one end of the shunt pipe 1201. Two exhaust solenoid valves 1203 are respectively arranged on the inner sides of the two ends of the bottom of the shunt pipe 1201, and the other end of the shunt pipe 1201 is fixedly connected to the negative pressure fan 10. The two exhaust pipes 1202 are respectively passed through two cylinder covers 702 and provided with two exhaust filter heads 1204. The tops of the exhaust pipes 1202 are respectively fixedly connected to the shunt pipes 1201, and the outer sides of the exhaust pipes 1202 are fixedly connected to the cylinder covers 702. The two exhaust solenoid valves 1203 are respectively movably connected to the two ends of the bottom of the shunt pipe 1201, and the two exhaust filter heads 1204 are respectively fixedly connected to the two exhaust pipes 1202. In this example, two exhaust solenoid valves 1203 are provided to facilitate control of the negative pressure inside the two adsorption cylinders 8. When the accumulated fluff needs to be scraped off, the corresponding exhaust solenoid valves 1203 can be closed to make the fluff lose suction, making it easier to clean.

[0026] Working principle: The negative pressure fan 10 works, and the air inside the two adsorption cylinders 8 is extracted through the two exhaust pipes 1202 at the bottom of the shunt pipe 1201 to reach a negative pressure state, and then the fluff in the external environment is sucked into the shunt negative pressure box 3 through the waste suction pipe 6. The two waste suction solenoid valves 303 are opened alternately, so that the fluff alternately passes through the two solenoid valve mounting tubes 302, flows into the closed two sides of the waist-shaped negative pressure box 301, and is adsorbed on the wall of the adsorption cylinder 8. The two motors 901 respectively drive the two lead screws 902 to rotate alternately, and then the two threaded blocks 903 move alternately, further driving the two scraper components 11 to alternately scrape off the accumulated fluff on the two adsorption cylinders 8. In this process, the corresponding exhaust solenoid valve 1203 closes the exhaust pipe 1202, so that the corresponding adsorption cylinder 8 loses the negative pressure state, which makes it easier to scrape off the accumulated fluff.

[0027] Embodiment 2: See also Figure 3 , Figure 8The present invention provides a technical solution: it includes a bottom installation box 1, two waste storage boxes 2 are symmetrically arranged at both ends of the inner side of the bottom installation box 1, a shunt negative pressure box 3 is arranged on the top of the bottom installation box 1, two cylinder resistance bases 4 are symmetrically arranged at both ends of the inner bottom of the shunt negative pressure box 3, a screw installation box 5 is arranged inside the shunt negative pressure box 3, a waste suction pipe 6 is arranged on one side of the shunt negative pressure box 3, a box cover component 7 is arranged on the top of the shunt negative pressure box 3, two adsorption cylinders 8 are respectively arranged on the top of the two cylinder resistance bases 4, two motor screw components 9 are symmetrically arranged at both ends of the screw installation box 5, a negative pressure fan 10 is arranged on one side of the top of the box cover component 7, two scraper components 11 are respectively arranged on the outside of the two adsorption cylinders 8, and an exhaust pipe component 12 is arranged on one side of the negative pressure fan 10.

[0028] The two waste storage boxes 2 are respectively connected in a sliding manner to the bottom mounting box 1. In this embodiment, by providing the two waste storage boxes 2, the fluff scraped off by the two adsorption cylinders 8 can be collected respectively for easy cleaning.

[0029] The two cylinder anti-return bases 4 include a cylinder base 401, and a plurality of anti-return rubber sheets 402 are evenly rotated around the axis at the bottom of the cylinder base 401, and the cylinder base 401 is fixedly connected to the bottom of the waist-shaped negative pressure box 301, and the plurality of anti-return rubber sheets 402 are fixedly connected to the cylinder base 401. In this example, by providing a plurality of anti-return rubber sheets 402, it is possible to prevent the fluff inside the waste storage box 2 from being re-absorbed into the diversion negative pressure box 3 when the top adsorption cylinder 8 is under negative pressure, thereby affecting the working effect of the device.

[0030] Working principle: the annular mounting plate 1101 slides down along the outer wall of the adsorption cylinder 8 and scrapes off the fluff attached to it, and a plurality of arc-shaped cone top blocks 1102 pass through the cylinder base 401, and a plurality of anti-return rubber sheets 402 are raised on the outer side thereof, so that the fluff falls into the bottom waste storage box 2, the scraper component 11 is retracted, and the anti-return rubber sheet 402 rebounds to prevent the fluff from flowing back.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A colored spun yarn fluff processing device, characterized in that: It comprises a bottom installation box (1), two waste storage boxes (2) are symmetrically arranged at both ends of the inner side of the bottom installation box (1), a shunt negative pressure box (3) is arranged on the top of the bottom installation box (1), two cylinder return bases (4) are symmetrically arranged at both ends of the inner bottom of the shunt negative pressure box (3), a screw installation box (5) is arranged inside the shunt negative pressure box (3), a waste suction pipe (6) is arranged on one side of the shunt negative pressure box (3), a box cover component (7) is arranged on the top of the shunt negative pressure box (3), two adsorption cylinders (8) are respectively arranged on the top of the two cylinder return bases (4), two motor screw components (9) are symmetrically arranged at both ends of the inner side of the screw installation box (5), a negative pressure fan (10) is arranged on one side of the top of the box cover component (7), two scraper components (11) are respectively arranged on the outer sides of the two adsorption cylinders (8), and an exhaust pipe component (12) is arranged on one side of the negative pressure fan (10); The scraper component (11) comprises an annular mounting plate (1101), and a plurality of arc-shaped cone top blocks (1102) are evenly rotated around an axis at the bottom of the annular mounting plate (1101), and the inner sides of the plurality of arc-shaped cone top blocks (1102) are inclined toward the outer sides, and the outer sides are higher than the inner sides.

2. A colored spun yarn fluff processing device according to claim 1, characterized in that: The two waste storage boxes (2) are respectively slidably connected to the bottom installation box (1); the diversion negative pressure box (3) comprises a waist-shaped negative pressure box (301); two solenoid valve installation tubes (302) are symmetrically arranged at both ends of one side of the waist-shaped negative pressure box (301); the bottom of the waist-shaped negative pressure box (301) is fixedly connected to the bottom installation box (1); two waste suction solenoid valves (303) are respectively arranged inside the two solenoid valve installation tubes (302); the solenoid valve installation tubes (302) are respectively fixedly connected to both ends of the waist-shaped negative pressure box (301); and the two waste suction solenoid valves (303) are respectively movably connected to the inner sides of the two solenoid valve installation tubes (302).

3. A colored spun yarn fluff processing device according to claim 2, characterized in that: The two cylinder anti-return bases (4) include a cylinder base (401), and a plurality of anti-return rubber sheets (402) are evenly rotated around an axis at the bottom of the cylinder base (401), and the cylinder base (401) is fixedly connected to the bottom of the waist-shaped negative pressure box (301), and the plurality of anti-return rubber sheets (402) are fixedly connected to the cylinder base (401). The screw installation box (5) includes an installation box (501), and two slide grooves (502) are respectively arranged on both sides of the installation box (501), and the two ends of the installation box (501) are respectively fixedly connected to the two sides of the waist-shaped negative pressure box (301), and two flocculant-blocking rubber strips (503) are respectively arranged on both sides of the two slide grooves (502), and the two flocculant-blocking rubber strips (503) are respectively fixedly connected to the installation box (501) on both sides of the slide groove (502), and one end of the waste suction pipe (6) is fixedly connected to the two solenoid valve installation pipes (302).

4. A colored spun yarn fluff processing device according to claim 3, characterized in that: The bottoms of the two adsorption cylinders (8) are movably connected to the two cylinder bases (401) respectively.

5. A colored spun yarn fluff processing device according to claim 4, characterized in that: The box cover component (7) comprises a motor mounting cover (701), two cylinder covers (702) are respectively arranged on the inner sides of both ends of the motor mounting cover (701), the bottom of the motor mounting cover (701) is fixedly connected to the top of the waist-shaped negative pressure box (301), the bottoms of the two cylinder covers (702) are respectively movably mounted to two adsorption cylinders (8), the cylinder covers (702) are slidably connected to the motor mounting cover (701), the inner side of the annular mounting plate (1101) is slidably connected to the outer wall of the adsorption cylinder (8), and the plurality of arc-shaped cone top blocks (1102) are fixedly connected to the annular mounting plate (1101).

6. A colored spun yarn fluff processing device according to claim 5, characterized in that: The two motor screw components (9) include a motor (901), a drive shaft of the motor (901) passing through a motor mounting cover (701) and provided with a screw (902), the motor (901) being fixedly connected to the motor mounting cover (701), a threaded block (903) being provided on the screw (902), the bottom of the screw (902) being rotatably connected to the mounting box (501), the top of the screw (902) being fixedly connected to the drive shaft of the motor (901), the inner side of the threaded block (903) being threadedly connected to the screw (902), one end of the threaded block (903) passing through a slide groove (502) and being fixedly connected to an annular mounting plate (1101), and the threaded block (903) being slidably connected to the slide groove (502).

7. A colored spun yarn fluff processing device according to claim 5, characterized in that: The negative pressure fan (10) is fixedly connected to the motor mounting cover (701).

8. A colored spun yarn fluff processing device according to claim 7, characterized in that: The exhaust pipe component (12) comprises a shunt pipe (1201), two exhaust pipes (1202) are symmetrically arranged at both ends of the bottom of one end of the shunt pipe (1201), two exhaust solenoid valves (1203) are respectively arranged on the inner sides of both ends of the bottom of the shunt pipe (1201), and the other end of the shunt pipe (1201) is fixedly connected to the negative pressure fan (10), the two exhaust pipes (1202) are respectively passed through two cylinder covers (702) and are provided with two exhaust filter heads (1204), the tops of the exhaust pipes (1202) are respectively fixedly connected to the shunt pipes (1201), the outer sides of the exhaust pipes (1202) are fixedly connected to the cylinder covers (702), the two exhaust solenoid valves (1203) are respectively movably connected to both ends of the bottom of the shunt pipe (1201), and the two exhaust filter heads (1204) are respectively fixedly connected to the two exhaust pipes (1202).

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