CN118771097A - A kind of winding machine for weaving processing - Google Patents

Abstract

The present invention belongs to the technical field of weaving processing, and discloses a silk winding machine for weaving processing, comprising a tensioner mechanism, wherein the tensioner mechanism comprises a support plate, a driving gear is fixedly connected to the side surface of the support plate, a synchronous belt is meshed on the driving gear, an end of the synchronous belt away from the driving gear is slidably connected to the right end of the transmission gear, a driven gear is meshed at the bottom of the transmission gear, a rotating plate is fixedly connected to the bottom of the driven gear, a plurality of combing rods are fixedly connected to the front end of the rotating plate, a supporting spring is fixedly connected to the bottom of the support plate, a slide groove is provided at the top of the support plate, and limiting grooves are provided on both sides of the inner wall of the slide groove; the present invention facilitates adaptive adjustment of the tension of the yarn by arranging the cooperation of structures such as the support plate and the combing rod, reduces the tension of the yarn by reducing the friction force, and avoids the situation that the yarn breaks due to the large tension.

Description

A kind of winding machine for weaving cloth processing

Technical Field

The invention belongs to the technical field of weaving processing, in particular to a winding machine used for weaving processing.

Background Art

The winding machine in weaving processing is a device specially used to arrange and prepare yarns according to the requirements of weaving process. Its main function is to organize multiple yarns in a certain order and tension through winding cones or winding frames to form warp or weft axes suitable for looms. The tension of the yarn needs to be controlled during the winding process to prevent the yarn from breaking or being too loose, so as to ensure the smooth progress of the weaving process.

In the traditional weaving process, winding is an important and time-consuming link. With the development of technology, winding machines have evolved from manual operation to full automation, greatly improving production efficiency and yarn utilization, while also reducing labor intensity. They can adapt to various types and specifications of yarns and meet the needs of high-efficiency and high-quality weaving. In addition, the design of winding machines also pays more and more attention to energy conservation and emission reduction to meet the requirements of green and sustainable development.

Most of the existing silk winding machines used for weaving processing use a fixed comb-shaped tensioner, which increases the tension of the yarn by the friction between the comb teeth on the comb-shaped tensioner and the yarn, and the increase in tension is only related to the number and density of the comb teeth. In addition, when the distance moved by the yarn in a fixed time is long and the tension is large, the tension of the yarn cannot be reduced, and the adaptive ability is poor. At the same time, the yarn tension changes frequently due to the movement of the yarn guide rod, which easily reduces the stability of the tensioner and causes the yarn to slip from the inside of the tensioner. Therefore, a silk winding machine for weaving processing is proposed, which has the effect of adaptively adjusting the tension and improving the stability of the tensioner.

Summary of the invention

In order to solve the problem that a fixed comb-shaped tensioner is proposed in the above background technology, the tension of the yarn is increased by the friction between the comb teeth on the comb-shaped tensioner and the yarn, and the increase in tension is only related to the number and density of the comb teeth, and the distance moved by the yarn within a fixed time is long and the tension is large, the tension of the yarn cannot be reduced, and the adaptability is poor. At the same time, the yarn tension changes frequently due to the movement of the yarn guide rod, which easily reduces the stability of the tensioner and causes the yarn to slip from the inside of the tensioner. The present invention provides a silk winding machine for weaving processing.

To achieve the above object, the present invention provides the following technical solution: a winding machine for weaving, comprising a tensioner mechanism, a main body mechanism is arranged on the surface of the tensioner mechanism, a working mechanism is arranged on the surface of the main body mechanism, and a buffer mechanism is arranged above the tensioner mechanism;

The tensioner mechanism includes a support plate, a driving gear is fixedly connected to the side of the support plate, a synchronous belt is meshed on the driving gear, an end of the synchronous belt away from the driving gear is slidably connected to the right end of the transmission gear, a driven gear is meshed at the bottom of the transmission gear, a rotating plate is fixedly connected to the bottom of the driven gear, a plurality of combing rods are fixedly connected to the front end of the rotating plate, a supporting spring is fixedly connected to the bottom of the support plate, a slide groove is provided on the top of the support plate, limiting grooves are provided on both sides of the inner wall of the slide groove, and two sealing grooves are provided inside the support plate.

Preferably, the synchronous belt is located on the side of the transmission gear away from the driven gear, and the driven gear is meshed with a driven gear on the side away from the transmission gear. There are two rotating plates, and a plurality of combing rods are staggered at the front ends of the two rotating plates. The shape of the combing rod is "W" shaped.

Preferably, the main mechanism includes a fixed seat, a plurality of fixed blocks are fixedly connected to the front end of the fixed seat, two rotating frames are fixedly connected to the top of the fixed block, a plurality of supporting seats are fixedly connected to the front end of the fixed seat, a yarn guide plate is fixedly connected to the front end of the supporting seat, a plurality of spindle seats are rotatably connected to the top of the fixed seat, an aluminum straight cylinder is slidably sleeved on the spindle seat, a main shell is fixedly connected to the fixed seat, and a placement table is fixedly connected to the front end of the main shell.

Preferably, the placement platform is located below the fixing seat, a plurality of the fixing blocks are respectively located in front of a plurality of ingot seats, and the fixing blocks are located above the supporting seat.

Preferably, one end of the support plate away from the slide slot is rotatably connected to the rotating frame, the synchronous belt is located on the right side of the rotating frame, and the bottom of the support plate is elastically connected to the surface of the fixing seat through a support spring.

Preferably, the top and bottom of the rotating plate are rotationally connected to the fixed block and the support seat respectively, and the side of the transmission gear away from the synchronous belt is rotationally connected to the right side of the fixed block.

Preferably, the working mechanism includes a body, a plurality of control buttons are arranged on the body, a mobile platform is slidably connected to the right side of the body, a plurality of yarn guide rods are fixedly connected to the front end of the mobile platform, and a plurality of yarn guide rods are provided with yarn guide holes at one end away from the mobile platform.

Preferably, several of the yarn guide holes are respectively located in front of the spindle seat, and the end of the movable platform away from the machine body is slidably connected to the inner wall of the main body shell, and the movable platform is located above the fixed seat.

Preferably, the buffer mechanism comprises a buffer block, a yarn guide groove is provided on the top of the buffer block, limit blocks are fixedly connected to both sides of the buffer block, two sliding rods are fixedly connected to the bottom of the buffer block, and a buffer spring is fixedly connected to the bottom of the sliding rod.

Preferably, the buffer block is slidably connected to the slide groove, the size of the limit block is adapted to the size of the limit groove, the slide rod passes through the inner wall of the slide groove and extends to the inside of the sealing groove, and the bottom of the slide rod is slidably connected to the inner wall of the sealing groove through a buffer spring.

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

The present invention facilitates adaptive adjustment of the tension of the yarn by arranging the coordination of structures such as the support plate and the combing rod. When the tension of the yarn is large, the support plate will rotate downward with the driving gear as the center and squeeze the support spring. The support plate and the yarn are supported by the elastic force of the support spring to offset a part of the tension. The downward rotation of the support plate will drive the synchronous belt to slide through the driving gear. The sliding of the synchronous belt will drive the driven gear to rotate by rotating the transmission gear, so that the two rotating plates rotate in the direction away from each other, and the combing rod moves in the direction away from the yarn and releases contact with the yarn. The tension of the yarn is reduced by reducing the friction force, and the situation that the yarn breaks due to the large tension is avoided. On the contrary, if the tension of the yarn is small, the support plate will rotate upward under the action of the elastic force of the support spring, so that a plurality of combing rods are cross-distributed through transmission, and the straight yarn is squeezed into a folded line state through the "V"-shaped groove on the combing rod, thereby increasing the contact area between the yarn and the combing rod, thereby increasing the tension of the yarn by increasing the friction force, and avoiding the situation that the winding on the aluminum straight tube is poorly formed due to the small tension, causing defects.

The present invention improves the stability of the support plate when adjusting the yarn tension by arranging the cooperation of structures such as buffer blocks and buffer springs. When the yarn tension is large, the buffer block on the support plate will be pressed, so that the buffer block moves in the direction close to the buffer spring under the action of pressure, squeezing the buffer spring and the air inside the sealing groove, and buffering and supporting the yarn with large tension through elastic force and air pressure. When the yarn tension is small, the pressure on the buffer block is reduced, so that the buffer block moves in the direction away from the support plate under the action of the air pressure inside the sealing groove and the elastic force of the buffer spring, so that the yarn guide groove on the top of the buffer block keeps in contact with the yarn with small tension, avoiding the yarn from slipping out of the inside of the yarn guide groove, thereby causing the support plate to be unable to adjust the yarn tension.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of the three-dimensional structure of the tensioner mechanism of the present invention;

FIG3 is a bottom view of the structure of the tensioner mechanism of the present invention;

FIG4 is a schematic diagram of the structural matching relationship between the slide groove and the slide rod of the present invention;

FIG5 is a schematic cross-sectional view of the buffer mechanism of the present invention;

FIG. 6 is an enlarged structural schematic diagram of point A in FIG. 5 of the present invention.

In the figure: 1. tensioner mechanism; 101. support plate; 102. driving gear; 103. synchronous belt; 104. transmission gear; 105. driven gear; 106. rotating plate; 107. combing rod; 108. supporting spring; 109. slide groove; 110. limiting groove; 111. sealing groove; 2. main body mechanism; 201. fixed seat; 202. fixed block; 203. rotating frame; 204. support seat; 205. yarn guide plate; 206. spindle seat; 207. aluminum straight cylinder; 208. main body shell; 209. placing table; 3. working mechanism; 301. machine body; 302. control button; 303. moving table; 304. yarn guide rod; 305. yarn guide hole; 4. buffer mechanism; 401. buffer block; 402. yarn guide groove; 403. limiting block; 404. slide rod; 405. buffer spring.

DETAILED DESCRIPTION

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.

As shown in FIGS. 2 to 5 , the present invention provides a winding machine for weaving, comprising a tensioner mechanism 1, a main body mechanism 2 is arranged on the surface of the tensioner mechanism 1, a working mechanism 3 is arranged on the surface of the main body mechanism 2, and a buffer mechanism 4 is arranged above the tensioner mechanism 1;

The tensioner mechanism 1 includes a support plate 101, a driving gear 102 is fixedly connected to the side of the support plate 101, a synchronous belt 103 is meshed on the driving gear 102, an end of the synchronous belt 103 away from the driving gear 102 is slidably connected to the right end of a transmission gear 104, a driven gear 105 is meshed at the bottom of the transmission gear 104, a rotating plate 106 is fixedly connected to the bottom of the driven gear 105, a plurality of combing rods 107 are fixedly connected to the front end of the rotating plate 106, a support spring 108 is fixedly connected to the bottom of the support plate 101, a slide groove 109 is provided on the top of the support plate 101, limiting grooves 110 are provided on both sides of the inner wall of the slide groove 109, and two sealing grooves 111 are provided inside the support plate 101.

The synchronous belt 103 is located on the side of the transmission gear 104 away from the driven gear 105, and the driven gear 105 is meshed with the driven gear 105 on the side away from the transmission gear 104. There are two rotating plates 106, and a plurality of combing rods 107 are staggered at the front ends of the two rotating plates 106. The shape of the combing rods 107 is "W" shaped.

As shown in Figure 1, the direction close to the icon placement platform 209 in Figure 1 is the front, the direction close to the icon yarn guide hole 305 is the left, and the direction close to the icon fixing seat 201 is the right. By setting the support plate 101 and the combing rod 107 and other structures, it is convenient to adaptively adjust the tension of the yarn. When the tension of the yarn is large, the support plate 101 will rotate downward with the driving gear 102 as the center and squeeze the support spring 108. The support plate 101 and the yarn are supported by the elastic force of the support spring 108 to offset a part of the tension. The downward rotation of the support plate 101 will drive the synchronous belt 103 to slide through the driving gear 102, and the sliding of the synchronous belt 103 will drive the driven gear by rotating the transmission gear 104 105 rotates, thereby causing the two rotating plates 106 to rotate away from each other, causing the combing rod 107 to move away from the yarn and release contact with the yarn, thereby reducing the tension of the yarn by reducing the friction force, and avoiding the situation where the yarn breaks due to high tension. On the contrary, if the tension of the yarn is low, the support plate 101 will rotate upward under the action of the elastic force of the support spring 108, thereby causing a plurality of combing rods 107 to be cross-distributed through transmission, and the "V"-shaped grooves on the combing rods 107 will squeeze the straightened yarn into a folded line state, thereby increasing the contact area between the yarn and the combing rod 107, thereby increasing the tension of the yarn by increasing the friction force, and avoiding the situation where the winding on the aluminum straight tube 207 is poorly formed due to low tension, causing defects.

As shown in FIG1 , the main mechanism 2 includes a fixed seat 201, a plurality of fixed blocks 202 are fixedly connected to the front end of the fixed seat 201, two rotating frames 203 are fixedly connected to the top of the fixed block 202, a plurality of supporting seats 204 are fixedly connected to the front end of the fixed seat 201, a yarn guide plate 205 is fixedly connected to the front end of the supporting seat 204, a plurality of spindle seats 206 are rotatably connected to the top of the fixed seat 201, an aluminum straight cylinder 207 is slidably sleeved on the spindle seat 206, a main body shell 208 is fixedly connected to the fixed seat 201, and a placement table 209 is fixedly connected to the front end of the main body shell 208.

The placing table 209 is located below the fixed seat 201, and several fixed blocks 202 are respectively located in front of several spindle seats 206. The fixed blocks 202 are located above the support seat 204. The end of the support plate 101 away from the slide slot 109 is rotatably connected to the rotating frame 203. The synchronous belt 103 is located on the right side of the rotating frame 203. The bottom of the support plate 101 is elastically connected to the surface of the fixed seat 201 through the support spring 108. The top and bottom of the rotating plate 106 are rotatably connected to the fixed block 202 and the support seat 204 respectively. The side of the transmission gear 104 away from the synchronous belt 103 is rotatably connected to the right side of the fixed block 202.

The working mechanism 3 includes a body 301, on which a plurality of control buttons 302 are arranged, a moving platform 303 is slidably connected to the right side of the body 301, a plurality of yarn guide rods 304 are fixedly connected to the front end of the moving platform 303, a plurality of yarn guide holes 305 are provided at the ends of the plurality of yarn guide rods 304 away from the moving platform 303, and the plurality of yarn guide holes 305 are respectively located in front of the spindle seat 206, an end of the moving platform 303 away from the body 301 is slidably connected to the inner wall of the main shell 208, and the moving platform 303 is located above the fixed seat 201.

The yarn guide plate 205 and the yarn guide rod 304 are provided to facilitate the positioning of the yarn. Meanwhile, the yarn guide rod 304 driven by the movable platform 303 reciprocates up and down, so that the yarn can be evenly wound on the surface of the aluminum straight cylinder 207 .

As shown in Figures 4 to 6, the buffer mechanism 4 includes a buffer block 401, a yarn guide groove 402 is opened on the top of the buffer block 401, both sides of the buffer block 401 are fixedly connected to limit blocks 403, the bottom of the buffer block 401 is fixedly connected to two sliding rods 404, and the bottom of the sliding rod 404 is fixedly connected to a buffer spring 405.

The buffer block 401 is slidably connected to the slide groove 109, the size of the limit block 403 is adapted to the size of the limit groove 110, the slide rod 404 passes through the inner wall of the slide groove 109 and extends to the inside of the sealing groove 111, and the bottom of the slide rod 404 is slidably connected to the inner wall of the sealing groove 111 through the buffer spring 405.

By setting up the cooperation of structures such as the buffer block 401 and the buffer spring 405, the stability of the support plate 101 when adjusting the yarn tension is improved. When the yarn tension is large, the buffer block 401 on the support plate 101 will be pressed, so that the buffer block 401 moves in the direction close to the buffer spring 405 under the action of pressure, squeezing the buffer spring 405 and the air inside the sealing groove 111, and buffering and supporting the yarn with large tension through elastic force and air pressure. When the yarn tension is small, the pressure on the buffer block 401 is reduced, so that the buffer block 401 moves in the direction away from the support plate 101 under the action of the air pressure inside the sealing groove 111 and the elastic force of the buffer spring 405, so that the yarn guide groove 402 on the top of the buffer block 401 keeps in contact with the yarn with small tension, avoiding the yarn from slipping out of the inside of the yarn guide groove 402, thereby causing the support plate 101 to be unable to adjust the yarn tension.

The working principle and use process of the present invention are as follows: first, the staff needs to place the yarn tube on the placement table 209 so that it is located directly below the yarn guide plate 205, and install the aluminum straight tube 207 on the corresponding spindle seat 206, then take out the thread end from the yarn tube, pass it through the gap between the yarn guide plate 205 and several combing rods 107 in turn, and slide it to connect with the yarn guide groove 402, then after passing through the yarn guide hole 305 on the yarn guide rod 304, tie the thread end to the aluminum straight tube 207, and rotate the aluminum straight tube 207 to make it rotate several times, test the tension, and make the tension of the yarn in a suitable state, at this time the yarn will slightly press the support plate 101 to make its angle in the working state shown in Figure 2, and the side of the combing rod 107 close to the yarn fits with the yarn, then press the control button 302 to make the spindle seat 206 drive the aluminum straight tube 207 to rotate, and at the same time make the movable platform 303 slide up and down inside the main shell 208;

In the process that the yarn guide rod 304 drives the yarn upward through the upward movement of the moving platform 303, the yarn moves a long distance in a fixed time, so that the tension increases. At this time, the yarn will press the buffer block 401 on the support plate 101, so that the buffer block 401 moves toward the direction close to the buffer spring 405 under the action of pressure, squeezes the buffer spring 405 and the air inside the sealing groove 111, and buffers and supports the yarn with greater tension through elastic force and air pressure, and at the same time makes the support plate 101 rotate downward with the driving gear 102 as the center. The supporting spring 108 is squeezed, and the supporting plate 101 and the yarn are supported by the elastic force of the supporting spring 108, and a part of the tension is offset. The downward rotation of the supporting plate 101 drives the synchronous belt 103 to slide through the driving gear 102, and the sliding of the synchronous belt 103 drives the driven gear 105 to rotate by rotating the transmission gear 104, so that the two rotating plates 106 rotate away from each other, and the combing rod 107 moves away from the yarn and releases the contact with the yarn, thereby reducing the tension of the yarn by reducing the friction.

On the contrary, in the process of the yarn guide rod 304 driving the yarn downward through the movable platform 303, the distance moved by the yarn in a fixed time is shorter, so that the tension is reduced. At this time, the pressure of the yarn on the support plate 101 is reduced, so that the buffer block 401 moves away from the support plate 101 under the action of the internal air pressure of the sealing groove 111 and the elastic force of the buffer spring 405, so that the yarn guide groove 402 on the top of the buffer block 401 keeps in contact with the yarn with less tension, and at the same time, the support plate 101 is rotated upward under the action of the elastic force of the support spring 108, so that the two rotating plates 106 are rotated in a direction close to each other through the transmission of the synchronous belt 103 and the transmission gear 104, so that the multiple combing rods 107 are cross-distributed as shown in Figure 4, and the "V"-shaped groove on the combing rod 107 is used to squeeze the straightened yarn into a folded line state, thereby increasing the contact area between the yarn and the combing rod 107, thereby increasing the tension of the yarn by increasing the friction.

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.

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 (10)

1. A winder for weaving, comprising a tensioner mechanism (1), characterized in that: the surface of the tensioner mechanism (1) is provided with a main body mechanism (2), the surface of the main body mechanism (2) is provided with a working mechanism (3), and a buffer mechanism (4) is arranged above the tensioner mechanism (1);

The tensioner mechanism (1) comprises a supporting plate (101), a driving gear (102) is fixedly connected to the side face of the supporting plate (101), a synchronous belt (103) is meshed on the driving gear (102), one end of the synchronous belt (103) away from the driving gear (102) is connected with the right end of a transmission gear (104) in a sliding mode, a driven gear (105) is meshed with the bottom of the transmission gear (104), a rotating plate (106) is fixedly connected to the bottom of the driven gear (105), a plurality of yarn combing rods (107) are fixedly connected to the front end of the rotating plate (106), a supporting spring (108) is fixedly connected to the bottom of the supporting plate (101), sliding grooves (109) are formed in the top of the supporting plate (101), limiting grooves (110) are formed in two sides of the inner wall of the sliding grooves (109), and two sealing grooves (111) are formed in the supporting plate (101).

2. The winder for weaving process according to claim 1, characterized in that: the synchronous belt (103) is located one side of a transmission gear (104) far away from a driven gear (105), the driven gear (105) is meshed with the driven gear (105) on one side of the driven gear (105) far away from the transmission gear (104), the number of the rotating plates (106) is two, a plurality of yarn combing rods (107) are distributed at the front ends of the two rotating plates (106) in a staggered mode, and the shape of the yarn combing rods (107) is in a W shape.

3. The winder for weaving process according to claim 1, characterized in that: the main body mechanism (2) comprises a fixing seat (201), the front end fixedly connected with of fixing seat (201) a plurality of fixed block (202), the top fixedly connected with of fixed block (202) two rotating turret (203), the front end fixedly connected with of fixing seat (201) a plurality of supporting seat (204), the front end fixedly connected with yarn guide plate (205) of supporting seat (204), the top rotation of fixing seat (201) is connected with a plurality of spindle seat (206), sliding sleeve has connected aluminium straight section of thick bamboo (207) on spindle seat (206), fixedly connected with main body shell (208) on fixing seat (201), the front end fixedly connected with of main body shell (208) places platform (209).

4. A winder for weaving process according to claim 3, characterized in that: the placing table (209) is located below the fixing seat (201), the fixing blocks (202) are located right in front of the spindle seats (206) respectively, and the fixing blocks (202) are located above the supporting seats (204).

5. The winder for weaving process of claim 4, wherein: one end of the supporting plate (101) far away from the sliding groove (109) is rotationally connected with the rotating frame (203), the synchronous belt (103) is positioned on the right side of the rotating frame (203), and the bottom of the supporting plate (101) is elastically connected with the surface of the fixing seat (201) through the supporting spring (108).

6. The winder for weaving process of claim 5, wherein: the top and the bottom of the rotating plate (106) are respectively connected with the fixed block (202) and the supporting seat (204) in a rotating way, and one side, far away from the synchronous belt (103), of the transmission gear (104) is connected with the right side of the fixed block (202) in a rotating way.

7. A winder for weaving process according to claim 3, characterized in that: the working mechanism (3) comprises a machine body (301), a plurality of control buttons (302) are arranged on the machine body (301), a mobile station (303) is connected to the right side of the machine body (301) in a sliding mode, a plurality of yarn guide rods (304) are fixedly connected to the front end of the mobile station (303), and yarn guide holes (305) are formed in one ends, far away from the mobile station (303), of the yarn guide rods (304).

8. The winder for weaving process of claim 7, wherein: the yarn guide holes (305) are respectively positioned right in front of the spindle seat (206), one end of the movable table (303) far away from the machine body (301) is in sliding connection with the inner wall of the main body shell (208), and the movable table (303) is positioned above the fixed seat (201).

9. The winder for weaving process of claim 7, wherein: the buffer mechanism (4) comprises a buffer block (401), a yarn guide groove (402) is formed in the top of the buffer block (401), limiting blocks (403) are fixedly connected to two sides of the buffer block (401), two sliding rods (404) are fixedly connected to the bottom of the buffer block (401), and a buffer spring (405) is fixedly connected to the bottom of the sliding rods (404).

10. The winder for weaving process according to claim 9, characterized in that: the buffer block (401) is connected with the chute (109) in a sliding mode, the size of the limiting block (403) is matched with the size of the limiting groove (110), the sliding rod (404) penetrates through the inner wall of the chute (109) and extends to the inside of the sealing groove (111), and the bottom of the sliding rod (404) is connected with the inner wall of the sealing groove (111) in a sliding mode through the buffer spring (405).