Textile cloth wetting device for spinning

Abstract

The invention belongs to the technical field of textile, and particularly relates to a textile fabric wetting device for textile, which comprises a wetting bin, openings communicated with the outside are formed in two side walls of the wetting bin, acrylic pinch plates matched with the openings are arranged on two sides of the wetting bin, and a top plate is arranged at the top of the wetting bin. A steam generating mechanism is arranged on the side wall of the wetting bin and matched with the top plate and the wetting bin, a discharging barrel is arranged in the wetting bin and connected with the inner wall of the wetting bin through a connecting body, and a hair ball removing mechanism is arranged in the wetting bin and matched with the connecting body. An electric material collecting roller is arranged in the wetting bin, and the electric material collecting roller is rotationally connected with the inner wall of the wetting bin. According to the textile fabric wetting device, uniform steam wetting can be conducted on textile fabric from top to bottom and from bottom to top, permeation of liquid among textile fabric fibers can be promoted through ultrasonic vibration, and the wetting effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of textiles, and particularly relates to a wetting device for textile fabrics used in textile production. Background Art

[0002] A textile fabric is a material made by weaving fibers through a textile process and is widely used in daily life and industrial production. Classified by raw materials, there are natural fiber textile fabrics, including cotton which is soft, comfortable, and highly absorbent; linen which has good air permeability but a relatively hard handfeel; silk which is smooth, soft, and has a gorgeous luster; and wool which is warm and has good elasticity. Common chemical fiber textile fabrics include polyester fiber which is crisp, wrinkle-resistant, easy to wash, and quick-drying; nylon which has excellent abrasion resistance and moisture absorption; acrylic which is known as "artificial wool" and has good warmth retention; and spandex which has high elasticity and is commonly used in the blending of tight-fitting clothes. Artificial fiber textile fabrics such as viscose fiber which has the basic properties of natural fibers, strong dyeing and moisture absorption but is prone to shrinkage and weight gain when washed; and modal which is soft, smooth, has moisture absorption superior to cotton, and has a strength better than viscose fiber. Additionally, there are blended and interwoven textile fabrics, such as cotton-polyester blended fabrics which combine the moisture absorption comfort of cotton and the crispness, easy washing, and quick-drying characteristics of polyester fiber. Classified by weaving methods, there are woven fabrics, which are made by the regular interweaving of warp and weft yarns on a loom, having a tight structure, a hard and crisp texture, and are commonly used in the production of clothing, home textiles, industrial fabrics, etc.; knitted fabrics, which are formed by bending yarns into loops and interlacing them with knitting needles, having good elasticity and softness, and are commonly found in underwear, sportswear, T-shirts, etc.; non-woven fabrics, also called non-woven cloths, which are directly made into sheet materials from fibers through processes such as needle punching, hydroentangling, and spunbonding, and have characteristics such as softness, air permeability, water resistance, and environmental friendliness, and are widely used in the fields of sanitary products, packaging materials, filtration materials, etc. In terms of its production process, first, spinning is carried out, where natural or chemical fibers are made into yarns with a certain strength and fineness through processes such as opening, carding, drafting, and twisting; then weaving is carried out, and according to different weaving methods, the yarns are made into textile fabrics using weaving, knitting, or non-woven fabric processes; finally, dyeing and finishing are carried out, including processes such as dyeing, printing, and finishing. Dyeing gives the textile fabric color, printing prints patterns, and finishing improves its appearance, handfeel, and performance through physical or chemical means, such as softening, waterproofing, and anti-wrinkle finishing. Some textile fabrics require wetting treatment using a wetting device during the processing.

[0003] Existing wetting devices for textile fabrics generally use steam wetting or immersion wetting as processing means to wet the textile fabrics. Steam wetting generally wets the textile fabric on one side only and cannot wet both sides of the textile fabric simultaneously, and the textile fabric cannot receive uniform steam wetting. For this reason, we propose a wetting device for textile fabrics used in textile production to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide a textile cloth wetting device for textile use, which can uniformly wet the textile cloth from top to bottom and from bottom to top with steam, and can promote the penetration of liquid between the fibers of the textile cloth through ultrasonic vibration to improve the wetting effect.

[0005] The technical solution adopted by the present invention is specifically as follows:

[0006] A textile cloth wetting device for textile use includes a wetting bin. Both side walls of the wetting bin are provided with openings communicating with the outside, and acrylic buckles matching the openings are provided on both sides of the wetting bin. The top of the wetting bin is provided with a top plate. A steam generating mechanism is provided on the side wall of the wetting bin, and the steam generating mechanism is matched with the top plate and the wetting bin. A feeding cylinder is provided in the wetting bin, and the feeding cylinder is connected to the inner wall of the wetting bin through a connecting body. A de-pilling mechanism is provided in the wetting bin, and the de-pilling mechanism is matched with the connecting body. An electric winding drum is provided in the wetting bin, and the electric winding drum is rotatably connected to the inner wall of the wetting bin. An ultrasonic wetting mechanism is provided in the wetting bin, and the ultrasonic wetting mechanism is arranged away from the feeding cylinder.

[0007] In a preferred solution, the steam generating mechanism includes a mounting frame. A steam generator is mounted on the mounting frame. The input end of the steam generator is connected with a U-shaped branch pipe, and the output end of the steam generator is connected with an L-shaped branch pipe. The U-shaped branch pipe is arranged away from the L-shaped branch pipe. One end of the U-shaped branch pipe away from the steam generator penetrates through the top plate and communicates with the inside of the wetting bin. One end of the L-shaped branch pipe away from the steam generator communicates with the inside of the wetting bin.

[0008] In a preferred solution, the connecting body includes a vertically arranged connecting column. A first driver is provided on the side wall of the connecting column. The output end of the first driver is connected with a first rotating shaft, and the feeding cylinder is sleeved on the first rotating shaft.

[0009] In a preferred solution, the de-pilling mechanism includes a horizontally arranged first mounting plate. A scraping plate is provided on the first mounting plate, and the scraping plate is connected to the first mounting plate through two symmetrically arranged mounting screws. A plurality of scraping blades are clamped on the scraping plate. A telescopic rotating body is mounted on the first mounting plate. A moving body is provided on the connecting column, and the moving body is matched with the telescopic rotating body.

[0010] In a preferred embodiment, the ultrasonic wetting mechanism includes a water tank, an electric heater is provided in the water tank, and an ultrasonic generator is provided in the water tank. A horizontally arranged second mounting plate is clamped in the water tank. The second mounting plate is of a hollow structure, and diversion ports communicating with the outside are provided on both side walls of the second mounting plate. A second driver is provided on the side wall of the second mounting plate. The output end of the second driver is clamped with a second rotating shaft, and a plurality of diversion fan blades are clamped on the second rotating shaft.

[0011] In a preferred embodiment, the moving body includes a third mounting plate, an installation groove is provided on the third mounting plate, and a third driver is provided in the installation groove. The output end of the third driver is connected with a first gear. A second gear is rotatably connected to the inner wall of the installation groove. The first gear and the second gear are meshed, and a first support rod is clamped on the second gear.

[0012] In a preferred embodiment, the telescopic rotating body includes a fourth mounting plate, and the fourth mounting plate is of a hollow structure. The first support rod is of a hollow structure, and the first support rod penetrates through the side wall of the fourth mounting plate. A second support rod is inserted into the first support rod, and the second support rod is fixedly connected to the inner wall of the fourth mounting plate. A fourth driver is provided on the side wall of the first support rod. The output end of the fourth driver penetrates through the side wall of the first support rod and is clamped with a third rotating shaft. A third gear is sleeved on the third rotating shaft. A tooth groove meshed with the third gear is provided on the side wall of the second support rod.

[0013] In a preferred embodiment, a horizontally arranged first dispersion plate is provided between the material discharging cylinder and the electric material collecting roller. A plurality of first dispersion holes are provided on the first dispersion plate, and the plurality of first dispersion holes are evenly distributed on the first dispersion plate. A material guiding groove is provided on the first dispersion plate, and the material guiding groove penetrates through the side wall of the first dispersion plate. Both ends of the first dispersion plate are respectively clamped with the inner walls of both sides of the wetting bin.

[0014] In a preferred embodiment, a horizontally arranged second dispersion plate is provided between the electric material collecting roller and the water tank. Both ends of the second dispersion plate are respectively clamped with the inner walls of both sides of the wetting bin. A plurality of second dispersion holes are provided on the second dispersion plate, and the plurality of second dispersion holes are evenly distributed on the second dispersion plate.

[0015] In a preferred embodiment, a slider is clamped on the second support rod. The slider is slidably connected to the inner walls of both sides of the first support rod. The slider is connected to the bottom wall of the first support rod through a return spring.

[0016] The technical effects achieved by the present invention are:

[0017] Install the feeding cylinder containing the textile fabric on the first rotating shaft. Connect the textile fabric to the electric take-up roller through the material guiding groove. Turn on the steam generator to generate steam, and input the steam into the wetting bin through the U-shaped branch pipe to wet the textile fabric with steam from top to bottom. Turn on the electric heater to heat and evaporate the water in the water tank. Turn on the second driver to drive the second rotating shaft and the guiding fan blades to rotate, and transport the water vapor to the textile fabric to wet the textile fabric with steam from bottom to top. Turn on the ultrasonic generator, and the vibration of the ultrasonic waves promotes the penetration of the liquid between the fibers of the textile fabric to improve the wetting effect. Turn on the third driver to drive the first gear to rotate, thereby driving the second gear to rotate, driving the first rod and the first mounting plate to rotate, and adjusting the working angle of the first mounting plate, so as to adjust the working position of the wool shaver according to the position of the textile fabric on the feeding cylinder, so that the wool shaver can continuously remove the wool balls from the textile fabric on the feeding cylinder. Turn on the fourth driver to drive the third rotating shaft and the third gear to rotate, thereby driving the second rod and the fourth mounting plate to move in the horizontal direction, and adjusting the working position of the wool shaver in the horizontal direction, which is convenient for adjusting the working position of the wool shaver according to the size of the textile fabric and improving the efficiency of removing wool balls from the textile fabric. The first dispersion plate and the second dispersion plate cooperate, and the multiple first dispersion holes and the multiple second dispersion holes make the steam more evenly dispersed, so that the textile fabric can receive more uniform steam wetting. Description of the Drawings

[0018] Figure 1 is a schematic diagram of a textile fabric wetting device for textile use according to the present invention;

[0019] Figure 2 is an internal schematic diagram of a textile fabric wetting device for textile use according to the present invention;

[0020] Figure 3 is a schematic diagram of the wool ball removing mechanism of a textile fabric wetting device for textile use according to the present invention;

[0021] Figure 4 is a top view schematic diagram of the wool ball removing mechanism of a textile fabric wetting device for textile use according to the present invention;

[0022] Figure 5 is Figure 4 a schematic diagram at position A in

[0023] Figure 6 is a schematic diagram of the ultrasonic wetting mechanism of a textile fabric wetting device for textile use according to the present invention.

[0024] In the figure: 1 wet bin, 2 acrylic gusset plate, 3 top plate, 4 feeding cylinder, 5 electric take-up roller, 6 mounting bracket, 7 steam generator, 8 U-shaped branch pipe, 9 L-shaped branch pipe, 10 connecting column, 11 first driver, 12 first rotating shaft, 13 first mounting plate, 14 scraping plate, 15 mounting screw, 16 depilling knife, 17 water tank, 18 electric heater, 19 ultrasonic generator, 20 second mounting plate, 21 diversion port, 22 second driver, 23 second rotating shaft, 24 diversion fan blade, 25 third mounting plate, 26 mounting groove, 27 third driver, 28 first gear, 29 second gear, 30 first support rod, 31 fourth mounting plate, 32 second support rod, 33 fourth driver, 34 third rotating shaft, 35 third gear, 36 first dispersion plate, 37 first dispersion hole, 38 material guiding groove, 39 second dispersion plate, 40 return spring, 41 second dispersion hole, 42 slider. Specific Embodiment

[0025] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is provided in conjunction with the accompanying drawings of the specification.

[0026] Please refer to Figures 1-6 As shown, the present invention provides a textile fabric wetting device for textile use, including a wet bin 1. Both side walls of the wet bin 1 are provided with openings communicating with the outside, and acrylic gusset plates 2 matching the openings are provided on both sides of the wet bin 1. A top plate 3 is provided on the top of the wet bin 1. A steam generating mechanism is provided on the side wall of the wet bin 1, and the steam generating mechanism is matched with the top plate 3 and the wet bin 1. A feeding cylinder 4 is provided in the wet bin 1, and the feeding cylinder 4 is connected to the inner wall of the wet bin 1 through a connecting body. A depilling mechanism is provided in the wet bin 1, and the depilling mechanism is matched with the connecting body. An electric take-up roller 5 is provided in the wet bin 1, and the electric take-up roller 5 is rotatably connected to the inner wall of the wet bin 1. An ultrasonic wetting mechanism is provided in the wet bin 1, and the ultrasonic wetting mechanism is arranged away from the feeding cylinder 4.

[0027] The steam generating mechanism includes a mounting bracket 6. A steam generator 7 is mounted on the mounting bracket 6. The input end of the steam generator 7 is connected with a U-shaped branch pipe 8, and the output end of the steam generator 7 is connected with an L-shaped branch pipe 9. The U-shaped branch pipe 8 is arranged away from the L-shaped branch pipe 9. One end of the U-shaped branch pipe 8 away from the L-shaped branch pipe 9 penetrates through the top plate 3 and communicates with the inside of the wet bin 1. One end of the L-shaped branch pipe 9 away from the steam generator 7 communicates with the inside of the wet bin 1.

[0028] The connecting body includes a vertically arranged connecting column 10. A first driver 11 is provided on the side wall of the connecting column 10. The output end of the first driver 11 is connected with a first rotating shaft 12, and the feeding cylinder 4 is sleeved on the first rotating shaft 12.

[0029] The de-pilling mechanism includes a horizontally arranged first mounting plate 13. A scraping plate 14 is provided on the first mounting plate 13, and the scraping plate 14 is connected to the first mounting plate 13 by two symmetrically arranged mounting screws 15. A plurality of scraping blades 16 are clamped on the scraping plate 14. A telescopic rotating body is installed on the first mounting plate 13. A moving body is provided on the connecting column 10, and the moving body is arranged to match the telescopic rotating body.

[0030] The ultrasonic wetting mechanism includes a water tank 17. An electric heater 18 is provided in the water tank 17, and an ultrasonic generator 19 is provided in the water tank 17. A horizontally arranged second mounting plate 20 is clamped in the water tank 17. The second mounting plate 20 is of a hollow structure, and diversion openings 21 communicating with the outside are provided on both side walls of the second mounting plate 20. A second driver 22 is provided on the side wall of the second mounting plate 20. The output end of the second driver 22 is clamped with a second rotating shaft 23, and a plurality of diversion fan blades 24 are clamped on the second rotating shaft 23.

[0031] The moving body includes a third mounting plate 25. An installation groove 26 is provided on the third mounting plate 25, and a third driver 27 is provided in the installation groove 26. The output end of the third driver 27 is connected with a first gear 28. A second gear 29 is rotatably connected to the inner wall of the installation groove 26. The first gear 28 and the second gear 29 are meshed, and a first support rod 30 is clamped on the second gear 29.

[0032] The telescopic rotating body includes a fourth mounting plate 31, and the fourth mounting plate 31 is of a hollow structure. The first support rod 30 is of a hollow structure, and the first support rod 30 penetrates through the side wall of the fourth mounting plate 31. A second support rod 32 is inserted into the first support rod 30, and the second support rod 32 is fixedly connected to the inner wall of the fourth mounting plate 31. A fourth driver 33 is provided on the side wall of the first support rod 30. The output end of the fourth driver 33 penetrates through the side wall of the first support rod 30 and is clamped with a third rotating shaft 34. A third gear 35 is sleeved on the third rotating shaft 34. A tooth groove meshing with the third gear 35 is provided on the side wall of the second support rod 32.

[0033] A horizontally arranged first dispersion plate 36 is provided between the feeding cylinder 4 and the electric winding drum 5. A plurality of first dispersion holes 37 are provided on the first dispersion plate 36, and the plurality of first dispersion holes 37 are evenly distributed on the first dispersion plate 36. A material guiding groove 38 is provided on the first dispersion plate 36, and the material guiding groove 38 penetrates through the side wall of the first dispersion plate 36. Both ends of the first dispersion plate 36 are respectively clamped with the inner walls on both sides of the wetting bin 1.

[0034] A horizontally arranged second dispersion plate 39 is provided between the electric winding drum 5 and the water tank 17. Both ends of the second dispersion plate 39 are respectively clamped with the inner walls on both sides of the wetting bin 1. A plurality of second dispersion holes 41 are provided on the second dispersion plate 39, and the plurality of second dispersion holes 41 are evenly distributed on the second dispersion plate 39.

[0035] A slider 42 is clamped on the second support rod 32. The slider 42 is slidably connected to the inner walls on both sides of the first support rod 30. The slider 42 is connected to the bottom wall of the first support rod 30 through a return spring 40.

[0036] In the present invention, when it is necessary to moisten the textile fabric, the feeding cylinder 4 containing the textile fabric is installed on the first rotating shaft 12. The textile fabric is connected to the electric winding drum 5 through the material guiding groove 38. The steam generator 7 is turned on to generate steam. The steam is input into the moistening chamber 1 through the U-shaped branch pipe 8, and the textile fabric is steam-moistened from top to bottom. The electric heater 18 is turned on to heat and evaporate the water in the water tank 17. The second driver 22 is turned on to drive the second rotating shaft 23 and the guide fan blade 24 to rotate, and the water vapor is transported to the textile fabric to steam-moisten the textile fabric from bottom to top. The ultrasonic generator 19 is turned on, and the vibration of the ultrasonic waves promotes the penetration of the liquid between the fibers of the textile fabric, improving the moistening effect. The third driver 27 is turned on to drive the first gear 28 to rotate, thereby driving the second gear 29 to rotate, driving the first support rod 30 and the first mounting plate 13 to rotate, and adjusting the working angle of the first mounting plate 13, so as to adjust the working position of the wool shaver 16 according to the position of the textile fabric on the feeding cylinder 4, so that the wool shaver 16 can continuously perform the operation of removing wool balls on the textile fabric on the feeding cylinder 4. The fourth driver 33 is turned on to drive the third rotating shaft 34 and the third gear 35 to rotate, thereby driving the second support rod 32 and the fourth mounting plate 31 to move in the horizontal direction, adjusting the working position of the wool shaver 16 in the horizontal direction, facilitating the adjustment of the working position of the wool shaver 16 according to the size of the textile fabric, and improving the efficiency of removing wool balls from the textile fabric. The first dispersion plate 36 and the second dispersion plate 39 cooperate, and the plurality of first dispersion holes 37 and the plurality of second dispersion holes 41 make the steam more evenly dispersed, so that the textile fabric can receive more uniform steam moistening.

[0037] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A wetting device for textile fabrics used in textile production, characterized in that: It includes a wet bin (1). Both side walls of the wet bin (1) are provided with openings communicating with the outside, and acrylic gusset plates (2) matching the openings are provided on both sides of the wet bin (1). A top plate (3) is provided on the top of the wet bin (1). A steam generating mechanism is provided on the side wall of the wet bin (1), and the steam generating mechanism is arranged to match the top plate (3) and the wet bin (1). A feeding cylinder (4) is arranged in the wet bin (1), and the feeding cylinder (4) is connected to the inner wall of the wet bin (1) through a connecting body. A hair ball removing mechanism is arranged in the wet bin (1), and the hair ball removing mechanism is arranged to match the connecting body. An electric material collecting roller (5) is arranged in the wet bin (1), and the electric material collecting roller (5) is rotatably connected to the inner wall of the wet bin (1). An ultrasonic wetting mechanism is arranged in the wet bin (1), and the ultrasonic wetting mechanism is arranged far away from the feeding cylinder (4).

2. The wetting device for textile fabric according to claim 1, characterized in that: The steam generating mechanism includes a mounting frame (6). A steam generator (7) is mounted on the mounting frame (6). The input end of the steam generator (7) is connected with a U-shaped branch pipe (8), and the output end of the steam generator (7) is connected with an L-shaped branch pipe (9). The U-shaped branch pipe (8) is arranged far away from the L-shaped branch pipe (9). One end of the U-shaped branch pipe (8) far away from the steam generator (7) penetrates through the top plate (3) and communicates with the inside of the wet bin (1). One end of the L-shaped branch pipe (9) far away from the steam generator (7) communicates with the inside of the wet bin (1).

3. The textile fabric wetting device for textile use according to claim 1, characterized in that: The connecting body includes a vertically arranged connecting column (10). A first driver (11) is provided on the side wall of the connecting column (10). The output end of the first driver (11) is connected with a first rotating shaft (12), and the feeding cylinder (4) is sleeved on the first rotating shaft (12).

4. A wetting device for textile fabric used in textile according to claim 3, characterized in that: The hair ball removing mechanism includes a horizontally arranged first mounting plate (13). A scraping plate (14) is provided on the first mounting plate (13), and the scraping plate (14) is connected to the first mounting plate (13) through two symmetrically arranged mounting screws (15). A plurality of scraping blades (16) are clamped on the scraping plate (14). A telescopic rotating body is mounted on the first mounting plate (13). A moving body is provided on the connecting column (10), and the moving body is arranged to match the telescopic rotating body.

5. A wetting device for textile fabrics according to claim 1, characterized in that: The ultrasonic wetting mechanism includes a water tank (17). An electric heater (18) is arranged in the water tank (17), and an ultrasonic generator (19) is arranged in the water tank (17). A horizontally arranged second mounting plate (20) is clamped in the water tank (17). The second mounting plate (20) is of a hollow structure, and diversion openings (21) communicating with the outside are provided on both side walls of the second mounting plate (20). A second driver (22) is provided on the side wall of the second mounting plate (20). The output end of the second driver (22) is clamped with a second rotating shaft (23), and a plurality of diversion fan blades (24) are clamped on the second rotating shaft (23).

6. The textile fabric wetting device for textile use according to claim 4, characterized in that: The moving body includes a third mounting plate (25), an installation groove (26) is provided on the third mounting plate (25), and a third driver (27) is provided in the installation groove (26). The output end of the third driver (27) is connected to a first gear (28). A second gear (29) is rotatably connected to the inner wall of the installation groove (26). The first gear (28) and the second gear (29) are meshed. A first support rod (30) is clamped on the second gear (29).

7. The wetting device for textile fabric according to claim 6, characterized in that: The telescopic rotating body includes a fourth mounting plate (31), and the fourth mounting plate (31) is of a hollow structure. The first support rod (30) is of a hollow structure, and the first support rod (30) penetrates through the side wall of the fourth mounting plate (31). A second support rod (32) is inserted into the first support rod (30), and the second support rod (32) is fixedly connected to the inner wall of the fourth mounting plate (31). A fourth driver (33) is provided on the side wall of the first support rod (30). The output end of the fourth driver (33) penetrates through the side wall of the first support rod (30) and is clamped with a third rotating shaft (34). A third gear (35) is sleeved on the third rotating shaft (34). A tooth groove meshing with the third gear (35) is provided on the side wall of the second support rod (32).

8. A wetting device for textile fabrics according to claim 1, characterized in that: A horizontally arranged first dispersion plate (36) is provided between the material discharging cylinder (4) and the electric winding drum (5). A plurality of first dispersion holes (37) are provided on the first dispersion plate (36), and the plurality of first dispersion holes (37) are evenly distributed on the first dispersion plate (36). A material guiding groove (38) is provided on the first dispersion plate (36), and the material guiding groove (38) penetrates through the side wall of the first dispersion plate (36). Two ends of the first dispersion plate (36) are respectively clamped with the two inner side walls of the wetting bin (1).

9. The wetting device for textile fabric according to claim 5, characterized in that: A horizontally arranged second dispersion plate (39) is provided between the electric winding drum (5) and the water tank (17). Two ends of the second dispersion plate (39) are respectively clamped with the two inner side walls of the wetting bin (1). A plurality of second dispersion holes (41) are provided on the second dispersion plate (39), and the plurality of second dispersion holes (41) are evenly distributed on the second dispersion plate (39).

10. A wetting device for textile fabric used in textile according to claim 7, characterized in that: A slider (42) is clamped on the second support rod (32). The slider (42) is slidably connected to the two inner side walls of the first support rod (30). The slider (42) is connected to the bottom wall of the first support rod (30) through a return spring (40).

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