A grass weaving machine for artificial turf production

Abstract

The utility model relates to the technical field of grass weaving machine, the utility model provides a kind of for artificial turf production's grass weaving machine, it includes: grass weaving machine, the side of the grass weaving machine is provided with control unit, the top of the grass weaving machine is provided with limit unevenness prevention component, the limit unevenness prevention component includes processing roller, one end of the processing roller is arranged on the inner wall of grass weaving machine, the top of the control unit is fixedly connected with motor, the side of the grass weaving machine is provided with anti-jamming component, the anti-jamming component includes extruding rod, one end of the extruding rod is fixedly connected in the side of connecting rod, the top of the control unit is fixedly connected with control box, by above technical scheme, solve the technical problem that yarn appears deviation when following processing roller rotation in prior art grass weaving machine cannot prevent.

Description

Technical Field

[0001] This utility model relates to the field of grass weaving machine technology, specifically to a grass weaving machine for the production of artificial turf. Background Technology

[0002] Artificial turf weaving machines are the core equipment in artificial turf production lines. They are used to weave synthetic fibers (such as PP and PE) into tufts of grass fibers, which are then fixed with a base fabric to form a structure that mimics natural turf. The degree of automation and precision of these machines directly affects the density, uniformity, and durability of the turf.

[0003] According to a formula, a multi-functional turf machine for producing artificial turf (publication number: CN 119507134 A) includes an oil tank and first and second needle beds. Tufting needles are detachably installed at the bottom of the first and second needle beds. The first and second needle beds are arranged parallel to each other at intervals along the front and rear direction of the machine. A first needle seat is detachably installed on the rear side of the first needle bed, and a second needle seat is detachably installed on the front side of the second needle bed. Each first and second needle seat is equipped with a vertically arranged tufting needle. The tufting needles on the first needle seat and the tufting needles on the second needle seat are staggered from each other along the radial direction.

[0004] The aforementioned method, through the cooperation between components such as the oil tank and the first and second needle beds, is insufficient to prevent the yarn from shifting when it follows the rotation of the processing rollers. This results in unstable yarn position, uneven turf density and texture, and affects turf quality, which needs to be improved. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides a grass weaving machine for artificial turf production, which solves the technical problem in the prior art that grass weaving machines cannot prevent the yarn from shifting when following the rotation of the processing roller.

[0006] According to one aspect, at least one embodiment of the present invention provides a grass weaving machine for artificial turf production, comprising: a grass weaving machine, a control unit disposed on the side of the grass weaving machine, a limit anti-unevenness component disposed on the top of the grass weaving machine, the limit anti-unevenness component including a processing roller, one end of the processing roller disposed on the inner wall of the grass weaving machine, a motor fixedly connected to the top of the control unit, a bidirectional lead screw fixedly connected to the output shaft of the motor, a threaded sleeve threadedly connected to the circumferential surface of the bidirectional lead screw, a limit rod fixedly connected to the side of the motor, the end of the limit rod away from the motor passing through the side of the threaded sleeve, a connecting rod fixedly connected to the side of the threaded sleeve, a fixing plate fixedly connected to the side of the connecting rod, and a slot provided on the side of the fixing plate.

[0007] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: two threaded sleeves, connecting rods, and fixing plates are provided and are symmetrical to each other along the vertical central axis of the bidirectional screw. The fixing plate is located on the side of the processing roller, and the design of the fixing plate is conducive to clamping the two sides of the processing roller.

[0008] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: the processing roller is located on the displacement trajectory of the fixed plate, the groove is located on the side of the processing roller, and a plurality of processing rollers are provided and arranged in a linear array on the inner wall of the grass weaving machine. The opening of the groove is conducive to the passage of the processing roller without affecting the normal operation of the processing roller.

[0009] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: a controller is provided on the top of the control unit, there are two control units, which are symmetrical to each other along the vertical central axis of the processing roller, and a switch is provided on the side of the motor. The design of the switch is conducive to direct control of the motor.

[0010] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: a protective shell fixedly connected to the top of the grass weaving machine; the bidirectional lead screw, threaded sleeve, and limiting rod located on the inner wall of the protective shell; and a touch screen opened on the top of the control unit. The design of the protective shell is beneficial to protecting the bidirectional lead screw, threaded sleeve, and limiting rod, and reducing direct exposure to the outside.

[0011] According to another aspect, at least one embodiment of the present invention also provides a grass weaving machine for artificial turf production, comprising: an anti-jamming component provided on the side of the grass weaving machine, the anti-jamming component including a squeezing rod, one end of the squeezing rod being fixedly connected to the side of a connecting rod; a control box being fixedly connected to the top of the control unit, a fixing block being fixedly connected to the inner wall of the control box, a slider being slidably connected to the inner wall of the control box, a push rod being fixedly connected to the side of the slider, a triangular block being fixedly connected to one end of the push rod; an oil outlet pipe penetrating the side of the control box; an oil tank being fixedly connected to the side of the control unit, an oil inlet pipe penetrating the top of the oil tank, the end of the oil inlet pipe away from the oil tank penetrating the side of the control box; and the processing roller being lubricated appropriately by controlling the oil output to reduce the friction of the processing roller.

[0012] For example, in a grass weaving machine for artificial turf production provided in at least one embodiment of the present invention, the triangular block is located on the displacement trajectory of the extrusion rod, a guide plate is fixedly connected to the side of the control unit, the oil outlet pipe is located at the top of the guide plate, and the design of the guide plate is conducive to the flow of lubricating oil to several processing rollers.

[0013] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: a plug at one end of the oil outlet pipe, two fixing blocks that are symmetrical about each other along the vertical central axis of the slider, and a one-way valve on the outer wall of the oil inlet pipe. The design of the one-way valve is beneficial to controlling the amount of oil entering the oil inlet pipe.

[0014] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: a spring fixedly connected to the side of the slider, and the end of the spring away from the slider is fixedly connected to the inner wall of the control box. The design of the spring is conducive to the slider automatically resetting when it is not squeezed.

[0015] For example, in at least one embodiment of the present invention, a grass weaving machine for producing artificial turf is provided, which further includes: the guide plate is located on the side of the processing roller, and a round rod is fixedly connected to the inner wall of the control box. The end of the round rod away from the control box passes through the side of the slider. The design of the round rod is beneficial to restricting the movement trajectory of the slider.

[0016] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the interplay between components such as the fixing plate, the weaving machine, and the bidirectional lead screw within the limiting and anti-unevenness assembly enables the motor to drive the bidirectional lead screw to rotate in both directions. This causes the two connecting rods and the fixing plate to move relative to each other, thereby precisely clamping and fixing the yarn on the processing roller. This prevents the yarn from shifting as it rotates with the processing roller, maintaining its stable position. Preventing yarn shift is crucial for ensuring precision in the artificial turf weaving process, preventing uneven turf density and texture caused by shift, which would affect the quality of the turf. The groove design ensures that even when clamping force is applied to the processing roller, it will not affect its normal rotation, guaranteeing that the processing roller can continue to rotate stably, thereby driving the yarn to interweave and wind.

[0017] In this invention, the control box, oil outlet pipe, push rod, and extrusion rod within the anti-jamming component work together to achieve automatic lubrication through the push rod, slider, and lubricating oil flow mechanism within the control box. This ensures continuous lubrication of the processing roller surface, reducing manual intervention and improving production efficiency. The lubricating oil drips onto the processing roller through the oil outlet pipe, effectively reducing friction between the processing roller and other components and preventing jamming due to excessive friction. This is crucial for the normal operation of the straw weaving machine, especially during long-term operation, ensuring the machine's stability and continuous operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a three-dimensional appearance structure diagram of one embodiment of the present invention; Figure 2 This is a three-dimensional side view of the protective shell structure in one embodiment of the present invention; Figure 3 As one embodiment of this utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle; Figure 4 This is a three-dimensional enlarged structural diagram of the fixing plate in one embodiment of the present invention; Figure 5 This is a three-dimensional magnified structural diagram of the control box in one embodiment of the present invention.

[0020] In the diagram: 1. Grass weaver; 2. Control unit; 3. Limiting and anti-unevenness component; 31. Processing roller; 32. Motor; 33. Two-way lead screw; 34. Threaded sleeve; 35. Limiting rod; 36. Protective shell; 37. Connecting rod; 38. Fixing plate; 39. Groove; 310. Controller; 311. Switch; 4. Anti-jamming component; 41. Extrusion rod; 42. Control box; 43. Slider; 44. Fixing block; 45. Push rod; 46. Triangular block; 47. Oil outlet pipe; 48. Oil inlet pipe; 49. Oil tank; 410. One-way valve; 411. Drain plate; 412. Plug; 413. Spring; 5. Touch screen. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-5 As shown, this invention illustrates a weaving machine for producing artificial turf in one embodiment, comprising: a weaving machine 1, a control unit 2 disposed on the side of the weaving machine 1, a limiting anti-unevenness component 3 disposed on the top of the weaving machine 1, the limiting anti-unevenness component 3 including a processing roller 31, one end of the processing roller 31 disposed on the inner wall of the weaving machine 1, a motor 32 fixedly connected to the top of the control unit 2, a bidirectional lead screw 33 fixedly connected to the output shaft of the motor 32, a threaded sleeve 34 threadedly connected to the circumferential surface of the bidirectional lead screw 33, a limiting rod 35 fixedly connected to the side of the motor 32, one end of the limiting rod 35 away from the motor 32 passing through the side of the threaded sleeve 34, a connecting rod 37 fixedly connected to the side of the threaded sleeve 34, a fixing plate 38 fixedly connected to the side of the connecting rod 37, and a slot 39 opened on the side of the fixing plate 38.

[0028] In some examples, there are two threaded sleeves 34, connecting rods 37, and fixing plates 38, which are symmetrical to each other along the vertical central axis of the bidirectional lead screw 33. The fixing plates 38 are located on the side of the processing roller 31. The design of the fixing plates 38 is conducive to clamping the two sides of the processing roller 31.

[0029] In some examples, the processing roller 31 is located on the displacement trajectory of the fixed plate 38, the slot 39 is located on the side of the processing roller 31, and there are several processing rollers 31 arranged in a linear array on the inner wall of the grass weaver 1. The opening of the slot 39 is conducive to the passage of the processing roller 31 without affecting the normal operation of the processing roller 31.

[0030] In some examples, a controller 310 is provided on the top of the control unit 2. There are two control units 2, which are symmetrical to each other along the vertical central axis of the processing roller 31. A switch 311 is provided on the side of the motor 32. The design of the switch 311 is conducive to direct control of the motor 32.

[0031] In some examples, a protective shell 36 is fixedly connected to the top of the grass weaver 1. The bidirectional lead screw 33, threaded sleeve 34, and limit rod 35 are located on the inner wall of the protective shell 36. A touch screen 5 is provided on the top of the control unit 2. The design of the protective shell 36 is conducive to protecting the bidirectional lead screw 33, threaded sleeve 34, and limit rod 35, reducing direct exposure.

[0032] For example, such as Figures 1-5As shown, the grass weaving machine 1 applies pressure and rotational force to the processing roller 31 to help the yarns interweave and form a lawn structure. To reduce yarn deviation, the motor 32 is started. The motor 32 is a three-phase asynchronous motor that can rotate in both directions. When the motor 32 rotates forward, it drives the bidirectional lead screw 33 to rotate forward. The bidirectional lead screw 33 rotates forward, which drives the two threaded sleeves 34 and the two connecting rods 37 to move relative to each other, moving them towards the middle of the processing roller 31. When the two connecting rods 37 move relative to each other, they drive the two fixed plates 38 to move relative to each other. The two fixed plates 38 are located at both ends of the processing roller 31. The sides of the fixed plates 38 have slots 39 corresponding to the processing roller 31, so that when the fixed plates 38 move, the processing roller 31 passes through the slots 39. During the clamping process, it does not affect the normal rotation of the processing roller 31. When the two fixed plates 38 move relative to each other, they move towards the middle of the processing roller 31 at the same time. At this time, the processing roller 31 is rotating. The yarn is wound onto the processing roller 31, and the yarn is clamped by two fixing plates 38 to limit its position and temporarily fix it. This prevents the yarn from deviating as it rotates with the processing roller 31, which would cause errors in the turf weaving. The motor 32 drives the bidirectional lead screw 33 to rotate in both directions, causing the two connecting rods 37 and the fixing plates 38 to move relative to each other. This precisely clamps and fixes the yarn on the processing roller 31. This precise limiting device prevents the yarn from shifting as it rotates with the processing roller 31, keeping the yarn position stable. Preventing yarn shift is key to ensuring the precision of the artificial turf weaving process, as shift may lead to uneven turf density and texture, affecting the quality of the turf. The groove 39 design of the fixing plate 38 ensures that the processing roller 31 can continue to rotate stably, even when clamping force is applied, without affecting its normal rotation. This ensures that the processing roller 31 can continue to rotate stably, thereby driving the yarn to interweave and wind.

[0033] like Figures 1-5 As shown, this invention illustrates a weaving machine for artificial turf production according to another embodiment of the present invention. The machine includes: an anti-jamming component 4 on the side of the weaving machine 1, the anti-jamming component 4 including a pressing rod 41, one end of which is fixedly connected to the side of a connecting rod 37; a control box 42 fixedly connected to the top of a control unit 2, a fixing block 44 fixedly connected to the inner wall of the control box 42, a slider 43 slidably connected to the inner wall of the control box 42, a push rod 45 fixedly connected to the side of the slider 43, a triangular block 46 fixedly connected to one end of the push rod 45; an oil outlet pipe 47 penetrating the side of the control box 42; an oil tank 49 fixedly connected to the side of the control unit 2, an oil inlet pipe 48 penetrating the top of the oil tank 49, the end of the oil inlet pipe 48 away from the oil tank 49 penetrating the side of the control box 42; and the processing roller 31 is lubricated appropriately by controlling the oil output to reduce friction of the processing roller 31.

[0034] In some examples, the triangular block 46 is located on the displacement trajectory of the extrusion rod 41, and the side of the control unit 2 is fixedly connected to the guide plate 411. The oil outlet pipe 47 is located on the top of the guide plate 411. The design of the guide plate 411 is conducive to the flow of lubricating oil to several processing rollers 31.

[0035] In some examples, a plug 412 is provided at one end of the oil outlet pipe 47, two fixing blocks 44 are provided and are symmetrical to each other along the vertical central axis of the slider 43, and a one-way valve 410 is provided on the outer wall of the oil inlet pipe 48. The design of the one-way valve 410 is beneficial to controlling the oil inlet volume of the oil inlet pipe 48.

[0036] In some examples, a spring 413 is fixedly connected to the side of the slider 43, and the end of the spring 413 away from the slider 43 is fixedly connected to the inner wall of the control box 42. The design of the spring 413 is to allow the slider 43 to automatically reset when it is not compressed.

[0037] In some examples, the guide plate 411 is located on the side of the processing roller 31, and a round rod is fixedly connected to the inner wall of the control box 42. The end of the round rod away from the control box 42 passes through the side of the slider 43. The design of the round rod is beneficial to restrict the movement trajectory of the slider 43.

[0038] For example, such as Figures 1-5As shown, when clamping and fixing are not required, the motor 32 is started and reversed. The reverse rotation of the motor 32 will drive the bidirectional lead screw 33 to reverse, which in turn will drive the two threaded sleeves 34 and the two connecting rods 37 to move in opposite directions, moving them away from the processing roller 31. When the connecting rods 37 move in opposite directions, they will drive the extrusion rod 41 to move in opposite directions. The triangular block 46 is located on the movement trajectory of the extrusion rod 41. When the extrusion rod 41 moves in opposite directions, it will extrude force on the triangular block 46. The extrusion rod 41 is triangular in shape. When the triangular block 46 is extruded, it will drive the push rod 45 to move towards... The movement of the control box 42 internally causes the push rod 45 to move inward, which in turn pushes the slider 43 to move within the control box 42. One slider 43 and two fixed blocks 44 divide the interior of the control box 42 into two areas: an upper and a lower section. The oil outlet pipe 47 is located in the upper section, and the oil inlet pipe 48 is located in the lower section. The oil tank 49 stores lubricating oil. Turning the one-way valve 410 opens the oil inlet pipe 48, allowing the lubricating oil from the oil tank 49 to be transferred into the control box 42. The lubricating oil transferred through the oil inlet pipe 48 is located in the lower section, while the oil outlet pipe 47 is located in the upper section. Therefore, initially, the lubricating oil... Oil cannot flow out, but when push rod 45 is squeezed, causing slider 43 to move, a gap is opened between the two fixed blocks 44, allowing lubricating oil in the lower area to flow through the gap to the upper area. The lubricating oil flowing to the upper area can then flow out through oil outlet pipe 47, which is located at the top of guide plate 411. The lubricating oil dripping from oil outlet pipe 47 can flow onto guide plate 411, which is located on the side of processing roller 31 and is tilted towards processing roller 31. Therefore, the lubricating oil flowing onto guide plate 411 will slide from top to bottom and flow onto processing roller 31. 31 is lubricated with appropriate amount of oil to reduce friction and minimize jamming during rotation. Through the push rod 45, slider 43 and lubricating oil flow mechanism in the control box 42, lubrication can be performed automatically to ensure that the surface of the processing roller 31 is continuously lubricated. This helps to reduce manual intervention and improve production efficiency. The lubricating oil drips onto the processing roller 31 through the oil outlet pipe 47, which can effectively reduce the friction between the processing roller 31 and other components and avoid jamming caused by excessive friction. This is crucial for the normal operation of the grass weaver 1, especially during long-term operation, to ensure the stability and continuous operation of the machine.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A weaving machine for producing artificial turf, characterized in that, include: A grass weaving machine (1) is provided with a control unit (2) on the side of the grass weaving machine (1) and a limit anti-uneven component (3) is provided on the top of the grass weaving machine (1). The limiting anti-uneven component (3) includes a processing roller (31), one end of which is set on the inner wall of the grass weaver (1). A motor (32) is fixedly connected to the top of the control unit (2). A bidirectional lead screw (33) is fixedly connected to the output shaft of the motor (32). A threaded sleeve (34) is threaded on the circumferential surface of the bidirectional lead screw (33). A limiting rod (35) is fixedly connected to the side of the motor (32). The end of the limiting rod (35) away from the motor (32) passes through the side of the threaded sleeve (34). A connecting rod (37) is fixedly connected to the side of the threaded sleeve (34). A fixing plate (38) is fixedly connected to the side of the connecting rod (37). A slot (39) is opened on the side of the fixing plate (38).

2. A grass weaving machine for artificial turf production according to claim 1, characterized in that, Two threaded sleeves (34), connecting rods (37), and fixing plates (38) are provided and are symmetrical to each other along the vertical central axis of the bidirectional lead screw (33). The fixing plate (38) is located on the side of the processing roller (31).

3. A weaving machine for artificial turf production according to claim 2, characterized in that, The processing roller (31) is located on the displacement trajectory of the fixed plate (38), the slot (39) is located on the side of the processing roller (31), and there are several processing rollers (31) arranged in a linear array on the inner wall of the grass weaver (1).

4. A grass weaving machine for artificial turf production according to claim 3, characterized in that, The top of the control unit (2) is provided with a controller (310). There are two control units (2), which are symmetrical to each other along the vertical central axis of the processing roller (31). A switch (311) is provided on the side of the motor (32).

5. A grass weaving machine for artificial turf production according to claim 4, characterized in that, The top of the grass weaving machine (1) is fixedly connected to a protective shell (36), and the bidirectional lead screw (33), threaded sleeve (34), and limit rod (35) are located on the inner wall of the protective shell (36). The top of the control unit (2) is provided with a touch screen (5).

6. A weaving machine for artificial turf production according to claim 5, characterized in that, The grass weaver (1) is provided with an anti-jamming component (4) on its side. The anti-jamming component (4) includes a squeezing rod (41). One end of the squeezing rod (41) is fixedly connected to the side of the connecting rod (37). The top of the control unit (2) is fixedly connected to a control box (42). A fixing block (44) is fixedly connected to the inner wall of the control box (42). A slider (43) is slidably connected to the inner wall of the control box (42). A push rod (45) is fixedly connected to the side of the slider (43). A triangular block (46) is fixedly connected to one end of the push rod (45). An oil outlet pipe (47) passes through the side of the control box (42). An oil tank (49) is fixedly connected to the side of the control unit (2). An oil inlet pipe (48) passes through the top of the oil tank (49). The end of the oil inlet pipe (48) away from the oil tank (49) passes through the side of the control box (42).

7. A weaving machine for artificial turf production according to claim 6, characterized in that, The triangular block (46) is located on the displacement trajectory of the extrusion rod (41), and the control unit (2) is fixedly connected to the side of the flow guide plate (411), and the oil outlet pipe (47) is located on the top of the flow guide plate (411).

8. A grass weaving machine for artificial turf production according to claim 7, characterized in that, One end of the oil outlet pipe (47) is provided with a plug (412), there are two fixed blocks (44) which are symmetrical to each other along the vertical central axis of the slider (43), and a one-way valve (410) is provided on the outer wall of the oil inlet pipe (48).

9. A grass weaving machine for artificial turf production according to claim 8, characterized in that, A spring (413) is fixedly connected to the side of the slider (43), and the end of the spring (413) away from the slider (43) is fixedly connected to the inner wall of the control box (42).

10. A grass weaving machine for artificial turf production according to claim 9, characterized in that, The guide plate (411) is located on the side of the processing roller (31), and a round rod is fixedly connected to the inner wall of the control box (42). The end of the round rod away from the control box (42) passes through the side of the slider (43).

Images