Sizing machine convenient for threading

Abstract

The invention discloses a sizing machine convenient for threading, and relates to the technical field of sizing machines, the sizing machine comprises a size box, a guide shaft fixedly connected to the top end of the size box, a yarn wound on the outer surface of the guide shaft, a positioning frame fixedly connected to the outer surface of the size box, and a lifting opening and closing mechanism arranged at the center of the size box, the lifting opening and closing mechanism is used for controlling the yarn to be soaked in or separated from the size and controlling hot air to be sprayed out and blocked towards the yarn, and through cooperative use of the threaded rod, the air storage box and other structures, the traction shaft can be controlled to carry the yarn to be soaked in or separated from the size by controlling the rotating direction of the threaded rod; the supporting frame ascends to extrude the push rod through the pressing rod, the blocking block breaks away from blocking of the vent hole, hot air discharging can be stopped when the yarn is soaked in the size, hot air can be discharged to air the yarn when the yarn is separated from the size, the use cost is saved, and meanwhile the yarn sizing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sizing machines, in particular to a sizing machine which is convenient for threading yarn. Background Art

[0002] Sizing is the process of applying sizing agent to warp yarn to improve its weavability. Weavability refers to the ability of warp yarn to withstand repeated friction, stretching, bending, etc. of warp stop pieces, healds, reeds, etc. on the loom without causing a lot of fuzz or even breakage. Unsized single yarn fibers are not firmly held together, have a lot of surface hairiness, and are difficult to weave. After sizing, part of the sizing penetrates between the fibers, and the other part adheres to the surface of the warp yarn. Sizing that mainly penetrates between the fibers is called penetrating sizing, and sizing that mainly adheres to the surface of the warp yarn is called covering sizing.

[0003] In order to accelerate the drying of the yarn with sizing liquid adhered to it, the existing yarn sizing machine usually uses a hot air blower to continuously heat the yarn to be dried. In this process, the continuous use of the hot air blower will not only cause waste of resources and increase the processing cost of the device, but also the wasted heat will be continuously transferred to the sizing liquid, which will accelerate the drying of the sizing liquid and reduce the sizing effect of the yarn.

[0004] In view of this, the present invention proposes a sizing machine that is convenient for threading yarn to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a sizing machine that is easy to thread and can control the yarn to soak into and separate from the slurry while controlling the hot air to spray and block the yarn. It has solved the problem that the continuous use of the hot air blower not only causes waste of resources and increases the processing cost of the device, but also the wasted heat is continuously transferred to the slurry, accelerating the drying of the slurry and reducing the sizing effect of the yarn.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a sizing machine for facilitating yarn threading, comprising a sizing box, a guide shaft is fixedly connected to the top of the sizing box, a yarn is wound around the outer surface of the guide shaft, and a positioning frame is fixedly connected to the outer surface of the sizing box. A sizing machine for facilitating yarn threading comprises:

[0007] A stirring and arranging mechanism, which is disposed between the slurry box and the guide shaft, and is used to stir the slurry in the slurry box while reciprocatingly guiding and arranging the yarn;

[0008] The lifting and opening and closing mechanism is arranged at the center of the slurry box, and the lifting and opening and closing mechanism is used to control the yarn to be soaked in and out of the slurry, and control the ejection and blocking of hot air toward the yarn.

[0009] Preferably, the stirring arrangement mechanism includes a servo motor fixedly connected to the top of the positioning frame, the output end of the servo motor is fixedly connected to an active turntable, an end surface of the active turntable away from the servo motor is fixedly connected to a stirring shaft, and an outer surface of the stirring shaft is fixedly connected to a stirring blade.

[0010] Preferably, the stirring and arranging mechanism also includes a driven turntable rotatably connected to the outer surface of the slurry box, and a first belt is transmission-connected between the driven turntable and the driving turntable, and a secondary turntable is rotatably connected to the outer surface of the slurry box, and a second belt is transmission-connected between the secondary turntable and the driven turntable.

[0011] Preferably, the stirring arrangement mechanism also includes a limit rod fixedly connected to the top of the slurry box, and a guide plate is slidably connected to the limit rod. A threading hole is opened at the center of the guide plate, and the yarn passes through the threading hole.

[0012] Preferably, one end face of the auxiliary turntable away from the slurry box is fixedly connected to a reciprocating screw, a moving seat is sleeved on the outside of the reciprocating screw, a moving block is rotatably connected to the inner wall of the moving seat, and the moving block is threadedly connected to the reciprocating screw.

[0013] Preferably, the lifting and opening and closing mechanism includes a support frame slidably connected to the inner wall of the slurry box, the outer surface of the support frame is rotatably connected to a pulling shaft, and the top end of the support frame is fixedly connected to a pressure rod.

[0014] Preferably, the lifting and opening and closing mechanism also includes a threaded rod rotatably connected to the bottom surface of the slurry box, and the threaded rod is threadedly connected to the support frame, and one end of the threaded rod away from the slurry box is fixedly connected to a supply and transfer plate.

[0015] Preferably, the lifting and opening and closing mechanism also includes an air storage box fixedly connected to the top surface of the slurry box, an air jet is fixedly connected to the inner wall of the air storage box, and an air vent is opened through the air jet.

[0016] Preferably, a spring is fixedly connected to the inner wall of the jet cylinder, a blocking block is slidably connected to the inner wall of the jet cylinder, a push rod is fixedly connected to one end of the blocking block away from the spring, and the push rod is located directly above the pressure rod.

[0017] Preferably, an air guide plate is fixedly connected to the outer surface of the air storage box, the air guide plate is semi-arc-shaped, and the length of the air guide plate is greater than the length of the push rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention uses a stirring shaft and a reciprocating screw and other structures in combination, and can use a servo motor to control the rotation of an active turntable. On the one hand, the active turntable is linked to the stirring shaft to rotate, so that the stirring blades in the inner cavity of the slurry box rotate, and then the slurry in the inner cavity of the slurry box is stirred. On the other hand, the reciprocating screw is linked to the active turntable and rotates accordingly, so that the moving seat carries the moving block and moves horizontally back and forth along the reciprocating screw, and then the yarn moves horizontally back and forth, so that the processed yarn is reciprocatedly arranged, thereby saving the time required for arranging and storing the yarn.

[0020] The invention uses a limit rod and a guide plate and other structures in coordination, so that the limit rod can limit the guide plate, so as to prevent the movable seat from carrying the guide plate and rotating along the reciprocating screw, so as to cooperate with the rotation of the reciprocating screw, so that the movable seat carries the guide plate and moves horizontally back and forth along the reciprocating screw. In addition, the threading hole opened at the center of the guide plate is convenient for processing the yarn, and one end of the yarn passes through the threading hole and is fixed on the outer surface of the storage roller, which can not only scrape off the excess slurry adhered to the outer surface of the yarn, thereby increasing the function of the device to recover the excess slurry, but also guide and arrange the yarn;

[0021] The present invention cooperates with structures such as the threaded rod and the air storage box by setting the threaded rod and using the structure to control the rotation direction of the threaded rod to control the support frame to rise and fall along the slurry box, and then the pulling shaft follows the support frame to rise and fall, so that the pulling shaft carries the yarn to be soaked in and separated from the slurry, and avoids the person holding the yarn to move and contact the slurry. At the same time, the support frame rises to squeeze the push rod, so that the spring is compressed and contracted, and the blocking block is separated from the obstruction of the vent hole. At this time, the hot air in the air storage box is discharged to the yarn, and the support frame descends and is separated from the squeezing of the push rod, so that the spring rebounds, and the blocking block blocks the vent hole. At this time, the hot air in the air storage box stops being discharged, which is beneficial to stopping the hot air discharge when the yarn is soaked in the slurry, and the hot air is discharged to air dry the yarn when it is separated from the slurry, which saves the use cost and improves the sizing effect of the yarn.

[0022] The present invention can guide the hot air flowing out of the gap between the push rod and the air storage box through the coordinated use of the air guide plate and the air storage box, so that the flowing hot air is accurately blown toward the yarn, thereby accelerating the drying of the yarn and preventing the hot air from blowing toward the slurry in the slurry box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 The present invention shows Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 The present invention shows Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 5 It is a schematic diagram of the split structure of the air jet tube and the blocking block shown in the present invention;

[0028] Figure 6 It is a schematic diagram of the connection structure between the support frame and the pulling shaft shown in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the support frame moving upwards shown in the present invention;

[0030] Figure 8 It is a schematic diagram of the connection structure between the stirring shaft and the stirring blade shown in the present invention.

[0031] The numbers in the figure are:

[0032] 1. Slurry box; 2. Yarn; 3. Stirring and arranging mechanism; 4. Lifting and opening and closing mechanism; 5. Guide shaft; 6. Positioning frame;

[0033] 301, servo motor; 302, driving turntable; 303, stirring shaft; 304, stirring blade; 305, first belt; 306, driven turntable; 307, second belt; 308, auxiliary turntable; 309, reciprocating screw; 310, moving seat; 311, limiting rod; 312, guide piece; 313, moving block;

[0034] 401, threaded rod; 402, supply and transfer plate; 403, support frame; 404, pulling shaft; 405, pressure rod; 406, air storage box; 407, jet cylinder; 408, vent; 409, spring; 410, blocking block; 411, push rod; 412, air guide plate. DETAILED DESCRIPTION

[0035] 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.

[0036] Embodiments of the present invention

[0037] Please refer to Figures 1 to 8 As shown, a sizing machine for easy yarn threading includes a sizing box 1, a guide shaft 5 is fixedly connected to the top of the sizing box 1, a yarn 2 is wound around the outer surface of the guide shaft 5, and a positioning frame 6 is fixedly connected to the outer surface of the sizing box 1. A sizing machine for easy yarn threading includes:

[0038] A stirring and arranging mechanism 3, which is disposed between the slurry tank 1 and the guide shaft 5, and is used for stirring the slurry in the slurry tank 1 while reciprocatingly guiding and arranging the yarn 2;

[0039] The lifting and opening and closing mechanism 4 is arranged at the center of the slurry box 1, and the lifting and opening and closing mechanism 4 is used to control the yarn 2 to be immersed in and separated from the slurry, and to control the ejection and blocking of hot air toward the yarn 2;

[0040] The stirring arrangement mechanism 3 includes a servo motor 301 fixedly connected to the top of the positioning frame 6, the output end of the servo motor 301 is fixedly connected to a driving turntable 302, an end surface of the driving turntable 302 away from the servo motor 301 is fixedly connected to a stirring shaft 303, and the outer surface of the stirring shaft 303 is fixedly connected to a stirring blade 304;

[0041] The stirring arrangement mechanism 3 also includes a driven turntable 306 rotatably connected to the outer surface of the slurry box 1, and a first belt 305 is transmission-connected between the driven turntable 306 and the driving turntable 302, and a secondary turntable 308 is rotationally connected to the outer surface of the slurry box 1, and a second belt 307 is transmission-connected between the secondary turntable 308 and the driven turntable 306;

[0042] A reciprocating screw 309 is fixedly connected to one end face of the auxiliary turntable 308 away from the slurry box 1, a moving seat 310 is sleeved on the outside of the reciprocating screw 309, a moving block 313 is rotatably connected to the inner wall of the moving seat 310, and the moving block 313 is threadedly connected to the reciprocating screw 309;

[0043] The above scheme is adopted: through the coordinated use of structures such as the stirring shaft 303 and the reciprocating screw 309, the servo motor 301 can be used to control the rotation of the active turntable 302. On the one hand, the active turntable 302 is linked to the stirring shaft 303 to rotate, so that the stirring blade 304 located in the inner cavity of the slurry box 1 rotates, thereby stirring the slurry in the inner cavity of the slurry box 1. On the other hand, the reciprocating screw 309 is linked with the active turntable 302 and rotates accordingly, so that the moving seat 310 carries the moving block 313 and moves back and forth horizontally along the reciprocating screw 309, thereby making the yarn 2 move back and forth horizontally, thereby arranging the processed yarn 2 back and forth, thereby saving the time required for arranging and storing the yarn 2.

[0044] like Figure 2 and Figure 4 As shown, the stirring arrangement mechanism 3 also includes a limiting rod 311 fixedly connected to the top of the slurry box 1, and a guide plate 312 is slidably connected to the limiting rod 311. A threading hole is opened at the center of the guide plate 312, and the yarn 2 passes through the threading hole.

[0045] The above scheme is adopted: through the coordinated use of structures such as the limit rod 311 and the guide piece 312, the limit rod 311 can limit the guide piece 312 to prevent the movable seat 310 from carrying the guide piece 312 and rotating along the reciprocating screw 309, so as to cooperate with the rotation of the above-mentioned reciprocating screw 309, so that the movable seat 310 carries the guide piece 312 and moves horizontally back and forth along the reciprocating screw 309. In addition, the threading hole opened at the center of the guide piece 312 is convenient for the processing of the yarn 2. One end passes through the threading hole and is fixed to the outer surface of the storage roller. It can not only scrape off the excess slurry adhered to the outer surface of the yarn 2, thereby increasing the device's function of recovering excess slurry, but also guide and arrange the yarn 2.

[0046] Please refer to Figures 1 to 7 As shown, the lifting and opening and closing mechanism 4 includes a support frame 403 slidably connected to the inner wall of the slurry box 1, the outer surface of the support frame 403 is rotatably connected to a pulling shaft 404, and the top of the support frame 403 is fixedly connected to a pressure rod 405;

[0047] The lifting and opening and closing mechanism 4 also includes a threaded rod 401 rotatably connected to the inner bottom surface of the slurry tank 1, and the threaded rod 401 is threadedly connected to the support frame 403, and the end of the threaded rod 401 away from the slurry tank 1 is fixedly connected to the supply and transfer plate 402;

[0048] The lifting and opening and closing mechanism 4 also includes an air storage box 406 fixedly connected to the top surface of the slurry box 1, and an air jet 407 is fixedly connected to the inner wall of the air storage box 406, and a vent hole 408 is opened through the air jet 407;

[0049] The inner wall of the jet cylinder 407 is fixedly connected with a spring 409, and the inner wall of the jet cylinder 407 is slidably connected with a blocking block 410, and an end surface of the blocking block 410 away from the spring 409 is fixedly connected with a push rod 411, and the push rod 411 is located directly above the pressure rod 405;

[0050] By adopting the above scheme, through the coordinated use of the threaded rod 401 and the gas storage box 406 and other structures, the rotation direction of the threaded rod 401 can be controlled to control the rise and fall of the support frame 403 along the slurry box 1, so that the pulling shaft 404 can follow the rise and fall of the support frame 403, so that the pulling shaft 404 can carry the yarn 2 to be immersed in and separated from the slurry, and prevent the person from holding the yarn 2 and moving it to contact the slurry. At the same time, the support frame 403 rises to squeeze the pressure rod 405 to squeeze the push rod 411, so that the spring 40 9 is compressed and contracts, and the blocking block 410 is free from blocking the vent 408. At this time, the hot air in the air storage box 406 is discharged toward the yarn 2, and the support frame 403 descends and is free from squeezing the push rod 411, so that the spring 409 rebounds, and the blocking block 410 blocks the vent 408. At this time, the hot air in the air storage box 406 stops being discharged, which is beneficial to stopping the hot air discharge when the yarn 2 is soaked in the slurry, and the hot air is discharged to air dry the yarn 2 when it is separated from the slurry, which saves the use cost and improves the sizing effect of the yarn 2.

[0051] like Figure 2 and Figure 8 As shown, the outer surface of the gas storage box 406 is fixedly connected with an air guide plate 412, the air guide plate 412 is semi-arc-shaped, and the length of the air guide plate 412 is greater than the length of the push rod 411;

[0052] By adopting the above scheme: through the coordinated use of structures such as the air guide plate 412 and the air storage box 406, the hot air flowing out from the gap between the push rod 411 and the air storage box 406 can be guided so that the flowing hot air can be accurately blown toward the yarn 2, thereby accelerating the drying of the yarn 2 and preventing the hot air from blowing toward the slurry in the slurry box 1.

[0053] The working principle and use process of the present invention:

[0054] First, the staff controls the active turntable 302 to rotate through the servo motor 301. Since the active turntable 302 is fixedly connected to the stirring shaft 303, the stirring shaft 303 is fixedly connected to the stirring blade 304, and the driven turntable 306 is connected to the first belt 305 for transmission, the auxiliary turntable 308 is connected to the driven turntable 306 for transmission, and the auxiliary turntable 308 is fixedly connected to the reciprocating screw 309, so that the reciprocating screw 309 rotates along with the rotation of the active turntable 302. Since the moving seat 310 is rotatably connected to the moving block 313, the moving block 313 is threadedly connected to the reciprocating screw 309, and the limit rod 311 is slidably connected to the guide piece 312, the moving seat 310 carries the guide piece 312 and moves horizontally back and forth along the reciprocating screw 309;

[0055] Subsequently, the yarn 2 passing through the guide piece 312 is moved by the guide piece 312 and moves horizontally along the reciprocating screw 309, which can not only scrape off the excess slurry adhering to the outer surface of the yarn 2, thereby increasing the function of the device to recover the excess slurry, but also guide and arrange the yarn 2;

[0056] In addition, the staff can control the threaded rod 401 to rotate clockwise by holding the supply and transfer plate 402. Since the support frame 403 is slidably connected to the slurry box 1, the threaded rod 401 is threadedly connected to the support frame 403, so that the support frame 403 slides upward along the slurry box 1 with the rotation of the threaded rod 401 until the pulling shaft 404 carries the yarn 2 out of the slurry in the slurry box 1. At the same time, the pressure rod 405 moves upward with the support frame 403, so that the pressure rod 405 squeezes the push rod 411 and moves toward the air jet 407. The blocking block 410 is dynamically connected, the air jet 407 is fixedly connected with a spring 409, the air storage box 406 is fixedly connected with the air jet 407, and the air jet 407 is penetrated with an air vent 408, so that as the push rod 411 moves, the blocking block 410 squeezes the spring 409 to contract, and the blocking block 410 is separated from the blocking of the air vent 408. At this time, the hot air in the air storage box 406 is sequentially discharged from the air vent 408 - the gap between the push rod 411 and the air storage box 406 - the air guide plate 412 - the yarn 2, so that the hot air is discharged when the yarn 2 is separated from the slurry to dry it;

[0057] At the same time, the staff can also control the threaded rod 401 to rotate counterclockwise by holding the supply and transfer plate 402, and reverse the above working process to make the support frame 403 slide downward along the slurry box 1 as the threaded rod 401 rotates, until the pulling shaft 404 carries the yarn 2 to be soaked in the slurry in the slurry box 1. At the same time, the pressure rod 405 moves downward with the support frame 403, so that the pressure rod 405 is separated from the extrusion push rod 411, and the push rod 411 moves toward the outside of the air jet 407. At this time, the spring 409 rebounds, and the blocking block 410 resets and moves, and the blocking block 410 blocks the air hole 408. At this time, the hot air in the air storage box 406 stops being discharged, which is beneficial to stop the discharge of hot air when the yarn 2 is soaked in the slurry, saving the use cost while improving the sizing effect of the yarn 2.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] 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 sizing machine for facilitating yarn threading, comprising a sizing box (1), a guide shaft (5) fixedly connected to the top of the sizing box (1), a yarn (2) wound around the outer surface of the guide shaft (5), and a positioning frame (6) fixedly connected to the outer surface of the sizing box (1), characterized in that: The sizing machine for facilitating yarn threading comprises: A stirring and arranging mechanism (3), wherein the stirring and arranging mechanism (3) is arranged between the slurry box (1) and the guide shaft (5), and the stirring and arranging mechanism (3) is used to stir the slurry in the slurry box (1) while reciprocatingly guiding and arranging the yarn (2); A lifting opening and closing mechanism (4) is arranged at the center of the slurry box (1), and the lifting opening and closing mechanism (4) is used to control the yarn (2) to be immersed in and separated from the slurry, and to control the ejection and blocking of hot air toward the yarn (2).

2. The yarn sizing machine for facilitating yarn threading according to claim 1, characterized in that: The stirring arrangement mechanism (3) comprises a servo motor (301) fixedly connected to the top of the positioning frame (6); an output end of the servo motor (301) is fixedly connected to a driving turntable (302); an end surface of the driving turntable (302) away from the servo motor (301) is fixedly connected to a stirring shaft (303); and a stirring blade (304) is fixedly connected to the outer surface of the stirring shaft (303).

3. The yarn sizing machine for facilitating yarn threading according to claim 2, characterized in that: The stirring arrangement mechanism (3) also includes a driven turntable (306) rotatably connected to the outer surface of the slurry box (1), and a first belt (305) is transmission-connected between the driven turntable (306) and the driving turntable (302); the outer surface of the slurry box (1) is rotatably connected to a secondary turntable (308), and a second belt (307) is transmission-connected between the secondary turntable (308) and the driven turntable (306).

4. The yarn sizing machine for facilitating yarn threading according to claim 3, characterized in that: The stirring arrangement mechanism (3) also includes a limiting rod (311) fixedly connected to the top of the slurry box (1), and a guide plate (312) is slidably connected to the limiting rod (311), and a threading hole is provided at the center of the guide plate (312), and the yarn (2) passes through the threading hole.

5. The yarn sizing machine for facilitating yarn threading according to claim 3, characterized in that: A reciprocating screw (309) is fixedly connected to one end face of the auxiliary turntable (308) away from the slurry box (1), a moving seat (310) is sleeved on the outside of the reciprocating screw (309), a moving block (313) is rotatably connected to the inner wall of the moving seat (310), and the moving block (313) is threadedly connected to the reciprocating screw (309).

6. The yarn sizing machine for facilitating yarn threading according to claim 1, characterized in that: The lifting and opening and closing mechanism (4) comprises a support frame (403) slidably connected to the inner wall of the slurry box (1), the outer surface of the support frame (403) is rotatably connected to a pulling shaft (404), and the top end of the support frame (403) is fixedly connected to a pressure rod (405).

7. The yarn sizing machine for facilitating yarn threading according to claim 6, characterized in that: The lifting and opening and closing mechanism (4) also includes a threaded rod (401) rotatably connected to the inner bottom surface of the slurry box (1), and the threaded rod (401) is threadedly connected to the support frame (403), and the end of the threaded rod (401) away from the slurry box (1) is fixedly connected to the supply and transfer plate (402).

8. The yarn sizing machine for facilitating yarn threading according to claim 6, characterized in that: The lifting and opening and closing mechanism (4) also includes an air storage box (406) fixedly connected to the top surface of the slurry box (1), and an air jet (407) is fixedly connected to the inner wall of the air storage box (406), and a vent hole (408) is opened through the air jet (407).

9. The yarn sizing machine for facilitating yarn threading according to claim 8, characterized in that: The inner wall of the jet cylinder (407) is fixedly connected to a spring (409), the inner wall of the jet cylinder (407) is slidably connected to a blocking block (410), an end surface of the blocking block (410) away from the spring (409) is fixedly connected to a push rod (411), and the push rod (411) is located directly above the pressure rod (405).

10. The yarn sizing machine for facilitating yarn threading according to claim 8, characterized in that: An air guide plate (412) is fixedly connected to the outer surface of the air storage box (406); the air guide plate (412) is semi-arc-shaped, and the length of the air guide plate (412) is greater than the length of the push rod (411).

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