Automatic material strength detection device and method based on knitted fabric processing

Abstract

The invention discloses an automatic material strength detection device and method based on knitted fabric processing, and relates to the technical field of yarn strength detection. The material strength automatic detection device based on knitted fabric processing comprises a movable head and a fixed head which are symmetrically arranged according to the transverse axis of a machine shell, and a telescopic clamp is used for stretching out and drawing back under the action of gas and loosening and pressing yarn. The yarn taking device is used for pulling the yarn under the action of traction force and making the yarn fall off from the winding position or directly cutting off the yarn from the middle, and the yarn cutting piece is used for driving the yarn and cutting off the yarn when at least one end of the yarn cannot move. According to the material strength automatic detection device and method based on knitted fabric processing, all the pressing cylinders are controlled to move in the direction away from or close to the fixed head through the wind pressure effect, the free end of yarn is made to fall off from the winding pipe or cut off the yarn through the traction effect, yarn replacement is convenient, and the yarn detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of yarn strength detection, and particularly relates to a material strength automatic detection device and method for knitted fabric processing. BACKGROUND

[0002] Knitted fabric material strength detection is a key link to ensure product quality. The automatic detection device realizes efficient and accurate testing of knitted fabric strength indexes such as stretching, tearing and bursting by integrating mechanical, sensing and control technologies.

[0003] Referring to Chinese Patent Publication No. CN107478509A, a yarn strength measurement method is as follows: placing the yarn on the pulling device, pulling the yarn through the pulling device, and detecting the maximum tension of the pulling line through the force sensor; installing the yarn material on the pulling device, spraying water on the surface of the yarn material, and then operating the pulling device to pull the yarn after the yarn is wet, and detecting the maximum tension of the wet yarn through the force sensor; installing the yarn in the oven after heating, and detecting the strength of the heated yarn through the force sensor. By sequentially testing the strength of normal yarn, wet yarn and high-temperature yarn, the yarn is detected under different working environments, the accuracy of the yarn detection result is improved, and the detection efficiency is improved.

[0004] In order to ensure the accuracy of the test, 20 effective tests are usually required, and the used two sections of yarn need to be removed from the winding clamps on the telescopic head and the fixed head each time. The yarn is fixed after winding the clamp at least once. In order to not affect the subsequent detection, the slender yarn needs to be removed, which is relatively cumbersome to disassemble, and the manual line changing time is long. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a material strength automatic detection device and method for knitted fabric processing. The wind pressure is used to control the movement of all pressure cylinders away from or towards the fixed head, and the traction is used to make the free end of the yarn fall off from the winding pipe or cut the yarn, so as to facilitate the replacement of the yarn and improve the detection efficiency of the yarn.

[0006] Technical solution: To achieve the above object, the application is realized by the following technical solutions: A material strength automatic detection device for knitted fabric processing, comprising: a movable head and a fixed head symmetrically arranged according to the transverse axis of the machine shell, the same side of the movable head and the fixed head is connected with a telescopic clamp and a thread taking device, the telescopic clamp is connected with a fan through a pipeline, the telescopic clamp is used to stretch and loosen the yarn under the action of gas, the thread taking device is used to pull the yarn under the action of traction force and make the yarn fall off from the winding place or directly cut the yarn in the middle, the thread taking device comprises an outer box, the inner wall of the outer box is slidably connected with a sliding block, the bottom of the sliding block is connected with the bottom wall of the outer box through a second spring, the inner wall of the machine shell is connected with a bidirectional motor, the rotating end of the bidirectional motor is wound with a traction rope, the other end of the traction rope is connected with the center of the bottom of the sliding block, the top of the sliding block is connected with a thread cutting piece, the thread cutting piece is used to drive the yarn and cut the yarn when at least one end of the yarn cannot move.

[0007] Preferably, the thread taking device further comprises: side plates, the side plates are slidably connected with the sliding block, a window is formed in the middle of each side plate, the two ends of the side plate are connected with end plates, the side plate and the end plate form an outer box, a slide hole is formed in the middle of one of the end plates, the slide hole is slidably connected with the cutting piece, a circular hole is formed in the middle of the other end plate, the bottom of the end plate is connected with a first winding rod, the inner wall of the middle of the machine shell is connected with a second winding rod through a fixed plate, the top end of the traction rope is connected with the bottom of the sliding block, the bottom end of the traction rope passes through the circular hole and is wound with the first winding rod and the second winding rod in turn, the traction rope in the outer box is located on the inner side of the second spring.

[0008] Preferably, the thread cutting piece comprises: a vertical plate, the bottom of the vertical plate is connected with the top of the sliding block, one side of the vertical plate is connected with the side of the fixed head or the side of the movable head, the vertical plate enters the outer box and moves in the vertical direction under the action of traction force, a counterbore is formed in the middle of one side of the vertical plate, a necking hole is formed in the same side of the vertical plate, the bottom of the necking hole is in communication with the top of the counterbore, a top arc plate is arranged at the top of the vertical plate, the two ends of the top arc plate are connected with the top of the vertical plate through foot plates, a cutting plate is connected with the inner wall of the middle of the top arc plate, the cutting edge of the cutting plate is vertically downward.

[0009] Preferably, the necking hole is an eight-shaped hole, the width of the necking hole gradually shrinks in the vertical direction, the width of the top of the necking hole is smaller than the width of the bottom of the necking hole.

[0010] Preferably, the counterbore is a top-lacking circular hole, the diameter of the counterbore is greater than the width of the bottom of the necking hole, the diameter of the inner wall of the top arc plate is equal to the width of the top of the necking hole.

[0011] Preferably, the telescopic clamp comprises: a plurality of winding pipes, one side of each winding pipe is connected with the side of the fixed head or the side of the movable head, the side of each winding pipe away from the fixed head is provided with a placing groove, the bottom wall of each placing groove is connected with a first spring, one end of each first spring is connected with a pressing cylinder, the pressing cylinder is inserted with the fixed head, one end of the yarn is wound around the plurality of winding pipes on the fixed head in sequence and passes through the expansion hole, the other end of the yarn is wound around the plurality of winding pipes on the movable head in sequence and passes through the expansion hole, the stretching strength of the yarn is detected through the telescopic action of the movable head, the side of the fixed head or the side of the movable head is connected with a sliding cylinder, each sliding cylinder is slidingly connected with a bowl, one end of the sliding cylinder away from the fixed head is connected with a top plate, one end of the bowl away from the fixed head is connected with a push plate, one end of the push plate passes through the inside of the top plate and is slidingly connected with the inside of the top plate, one end of the push plate is connected with a connecting arc plate, the plurality of pressing cylinders on the fixed head or the movable head are connected with the connecting arc plate through the side plate, one side of each sliding cylinder is communicated with an electronic air valve, and one yarn taking device is arranged between adjacent winding pipes.

[0012] Preferably, the rotating part of the bidirectional motor is connected with a rotating shaft, a plurality of baffle plates are connected with the rotating shaft, two baffle plates form a group, one end of each traction rope is arranged between the baffle plates in a group, and the bottom end of the traction rope is wound around the side of the rotating shaft. The traction rope is loosened or tightened through rotation of the rotating shaft. The bottom of each second winding rod is connected with a limiting frame. The width of the limiting frame near one end of the second winding rod transverse axis is smaller than the width of the limiting frame away from one end of the second winding rod transverse axis.

[0013] Preferably, the projection of one side of the limiting frame is a trapezoid, and the width of the inner wall of the limiting frame gradually shrinks along the vertical direction.

[0014] Preferably, the width of the limiting frame near one end of the second winding rod transverse axis is greater than the diameter of the yarn, and the width of the limiting frame away from one end of the second winding rod transverse axis is equal to the diameter of the yarn.

[0015] The method comprises a material strength automatic detection device for knitted fabric processing, a telescopic clamp and a thread taking device are arranged on the same side of the fixed head and the movable head, when the yarn is replaced, the fan is started, the wind enters the sliding cylinder through the pipeline, the wind pressure in the sliding cylinder increases, the bowl plate moves away from or approaches the fixed head with the push rod, the connecting arc plate and the compression cylinder in sequence, the first spring is stretched, the compression cylinder controls the loose yarn, the yarn is taken and placed conveniently, the tightness of the traction rope is controlled through the rotation of the bidirectional motor, in the yarn detection process, the traction rope is relaxed, when the yarn is taken out, the traction rope is tight, the bidirectional motor continues to rotate, one end of the traction rope is continuously wound on the rotating shaft, the other end of the traction rope pulls the sliding block to move downward in the vertical direction, in the downward movement process of the vertical plate, the yarn passes through the hole expansion and the necking hole and contacts the cutting plate, the cutting plate presses the yarn, the middle part of the yarn moves upward along with the cutting plate, the two ends of the yarn are tightened and fall off from the winding pipe, when the yarn cannot fall off from the winding pipe, the pressure of the cutting plate on the middle part of the yarn increases continuously, until the cutting plate cuts the yarn, the yarn is divided into multiple small sections, and the yarn in the small sections is taken from each winding pipe.

[0016] Beneficial effects: the application provides a material strength automatic detection device and method for knitted fabric processing.

[0017] 2、in the downward movement process of the vertical plate, the cutting plate moves relative to the yarn, the yarn passes through the hole expansion, the necking hole and contacts the cutting plate in sequence, the cutting plate presses the yarn, the middle part of the yarn moves upward along with the cutting plate, the free end of the yarn falls off from the winding pipe, manual thread taking is not needed, the yarn is taken out automatically, and the staff can replace the yarn conveniently.

[0018] 3、the necking hole is in the shape of a splayed end, the width of the bottom end of the necking hole is much larger than the diameter of the yarn, and the inner wall of the necking hole is a smooth arc surface, so that the yarn can move upward along the inner wall of the necking hole conveniently, the width of the bottom end of the necking hole is slightly larger than the diameter of the yarn, the movement space of the yarn is reduced, the yarn is limited, and the deviation angle of the yarn is small.

[0019] 4. In order to cut the yarn, the cutting plate needs to be installed, in order to prevent the staff from being injured and improve safety, the cutting plate cannot be installed on the expansion hole which is easy to contact with the staff, but is installed on the top arc plate with smaller hole diameter, in order to facilitate the separation of the yarn, the deviation of the yarn in the moving process should be reduced, the inner diameter of the cutting plate needs to be matched with the yarn, and the inner diameter of the cutting plate cannot be too large. The expansion hole and the cutting plate are connected through the necking hole, so that the width of the hole diameter gradually decreases. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to make and use the application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0022] Figure 1 The structural schematic diagram of the present application.

[0023] Figure 2 The structural schematic diagram of the present application. Figure 1 The structural schematic diagram of the present application.

[0024] Figure 3 The structural schematic diagram of the present application.

[0025] Figure 4 The structural schematic diagram of the present application.

[0026] Figure 5 The structural schematic diagram of the present application.

[0027] Figure 6 The separation diagram of the part where the side plate is located and the part where the yarn cutting device is located.

[0028] Figure 7 The structural schematic diagram of the present application.

[0029] Figure 8 The structural schematic diagram of the present application.

[0030] Figure 9 The structural schematic diagram of the present application.

[0031] Figure 10 The structural schematic diagram of the present application.

[0032] The accompanying drawings are marked as follows: 11, casing; 12, support plate; 13, movable head; 14, fixed head; 15, fan; 16, pipeline; 2, telescopic clamp; 21, winding tube; 22, placement groove; 23, spring; 24, pressure cylinder; 25, slide cylinder; 26, top plate; 27, bowl plate; 28, push rod; 29, connecting arc plate; 3, wire taking device; 31, end plate; 32, sliding hole; 33, side plate; 34, window; 35, first winding rod; 36, slider; 37, traction rope; 38, second spring; 39, cutting piece; 391, vertical plate; 392, expansion hole; 393, necking hole; 394, top arc plate; 395, foot plate; 396, cutting plate; 41, bidirectional motor; 42, rotating shaft; 43, baffle; 44, second winding rod; 45, limit frame.

[0033] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] like Figure 1 - Figure 10 As shown, the embodiment of the present invention provides an automatic material strength detection device and method for knitted fabric processing, comprising: a movable head 13 and a fixed head 14 symmetrically arranged along the transverse axis of a housing 11, a telescopic clamp 2 and a thread-taking device 3 connected to the same side of the movable head 13 and the fixed head 14, the telescopic clamp 2 being connected to a fan 15 through a pipe 16, the telescopic clamp 2 being used to extend and retract under the action of gas and to loosen the yarn, and the thread-taking device 3 being used to pull the yarn under the action of traction and to remove the yarn from the winding place. The yarn falls or is directly cut from the middle. The thread-taking device 3 includes an outer box. The inner wall of the outer box is slidably connected to a slider 36. The bottom of the slider 36 is connected to the bottom wall of the outer box through a second spring 3823. The inner wall of the casing 11 is connected to a bidirectional motor 41. The rotating end of the bidirectional motor 41 is wrapped with a traction rope 37. The other end of the traction rope 37 is connected to the center of the bottom of the slider 36. The top of the slider 36 is connected to a thread cutting piece 39. The thread cutting piece 39 is used to drive the yarn and cut the yarn when at least one end of the yarn cannot move.

[0036] The taking-out device 3 further comprises side plates 33 in sliding connection with the sliding blocks 36, each of the side plates 33 is provided with a window 34 in the middle part, both ends of each of the side plates 33 are connected with end plates 31, the side plates 33 and the end plates 31 form an outer box, a sliding hole 32 is provided in the middle part of one of the end plates 31 in penetration, the sliding hole 32 is in sliding connection with the cutting member, a circular hole is provided in the middle part of the other end plate 31 in penetration, the bottom of the end plate 31 is connected with a first winding rod 35, the inner wall of the middle part of the casing 11 is connected with a second winding rod 44 through a fixed plate, the top end of a traction rope 37 is connected with the bottom of the sliding block 36, the bottom of the traction rope 37 is wound with the first winding rod 35 and the second winding rod 44 in sequence after penetrating through the circular hole, the traction rope 37 in the outer box is located at the inner side of the second spring 3823.

[0037] The cutting member 39 comprises a vertical plate 391, the bottom of the vertical plate 391 is connected with the top of the sliding block 36, one side of the vertical plate 391 is connected with the side of the fixed head 14 or the side of the movable head 13, the vertical plate 391 enters the outer box and moves in the vertical direction under the action of the traction force, an expansion hole 392 is provided in the middle part of one side of the vertical plate 391 in penetration, a necked hole 393 is provided in the same side of the vertical plate 391 in penetration, the bottom of the necked hole 393 is in communication with the top of the expansion hole 392, a top arc plate 394 is arranged at the top of the vertical plate 391, both ends of the top arc plate 394 are connected with the top of the vertical plate 391 through foot plates 395, a cutting plate 396 is connected with the inner wall of the middle part of the top arc plate 394, the cutting edge of the cutting plate 396 is vertically downward.

[0038] The necked hole 393 is an eight-shaped hole, the width of the necked hole 393 gradually shrinks in the vertical direction, the width of the top of the necked hole 393 is smaller than the width of the bottom of the necked hole 393.

[0039] The expansion hole 392 is a top-lacking circular hole, the diameter of the expansion hole 392 is larger than the width of the bottom of the necked hole 393, the diameter of the inner wall of the top arc plate 394 is equal to the width of the top of the necked hole 393.

[0040] The telescopic clamp 2 comprises: a plurality of winding pipes 21, one side of each winding pipe 21 is connected with the side of the fixed head 14 or the side of the movable head 13, the side of each winding pipe 21 away from the fixed head 14 is provided with a placing groove 22, the bottom wall of each placing groove 22 is connected with a first spring 23, one end of each first spring 23 is connected with a pressing cylinder 24, the pressing cylinder 24 is inserted with the fixed head 14, one end of the yarn is wound around the plurality of winding pipes 21 on the fixed head 14 in sequence and passes through the expansion hole 392, the other end of the yarn is wound around the plurality of winding pipes 21 on the movable head 13 in sequence and passes through the expansion hole 392, the stretching strength of the yarn is detected through the telescopic action of the movable head 13, the side of the fixed head 14 or the side of the movable head 13 is connected with a sliding cylinder 25, each sliding cylinder 25 is slidably connected with a bowl 27, the end of the sliding cylinder 25 away from the fixed head 14 is connected with a top plate 26, the end of the bowl 27 away from the fixed head 14 is connected with a push plate, one end of the push plate passes through the inside of the top plate 26 and is slidably connected with the inside of the top plate 26, one end of the push plate is connected with a connecting arc plate 29, the plurality of pressing cylinders 24 on the fixed head 14 or the movable head 13 are connected with the connecting arc plate 29 through a side plate 33, one side of each sliding cylinder 25 is communicated with an electronic air inlet valve.

[0041] The diameter of the expansion hole 392 is large, which facilitates the small yarn to pass through the expansion hole 392 and reduces the difficulty of perforation.

[0042] In order to cut the yarn, the cutting plate 396 needs to be installed, in order to prevent accidental injury to the staff and improve safety, the cutting plate 396 cannot be installed on the expansion hole 392 which is easy to contact with the staff, but is separately installed on the top arc plate 394 with smaller hole diameter.

[0043] And it is convenient to cut off the yarn, the deviation of the yarn in the moving process should be reduced, and it is convenient for the cutting plate 396 to cut the yarn directly, so the inner diameter of the cutting plate 396 needs to be matched with the yarn, and the inner diameter of the cutting plate 396 cannot be too large. The expansion hole 392 is connected with the cutting plate 396 through the necking hole 393, so that the width of the hole diameter gradually decreases.

[0044] The rotating part of the bidirectional motor 41 is connected with a rotating shaft 42, a plurality of baffles 43 are connected on the rotating shaft 42, two baffles 43 form a group, one end of each traction rope 37 is arranged between a group of baffles 43, the bottom end of the traction rope 37 is wound with the side of the rotating shaft 42, the traction rope 37 is released or tightened through the rotation of the rotating shaft 42, the bottom of each second winding rod 44 is connected with a limiting frame 45, the projection of one side of the limiting frame 45 is a trapezoidal shape, the width of the inner wall of the limiting frame 45 gradually shrinks along the vertical direction, the width of the limiting frame 45 close to one end of the horizontal axis of the second winding rod 44 is smaller than the width of the limiting frame 45 away from one end of the horizontal axis of the second winding rod 44, the width of the limiting frame 45 close to one end of the horizontal axis of the second winding rod 44 is greater than the diameter of the yarn, and the width of the limiting frame 45 away from one end of the horizontal axis of the second winding rod 44 is equal to the diameter of the yarn.

[0045] The projection diagram of the limiting frame 45 on one side is trapezoidal, the width of the limiting frame 45 close to one end of the transverse axis of the second winding rod 44 is smaller than the width of the limiting frame 45 away from the transverse axis of the second winding rod 44, when detecting the yarn, the traction rope 37 is relaxed, the traction rope 37 is supported by the limiting frame 45, avoiding the traction rope 37 grounding under the action of gravity. When the yarn is tightened, the upper space of the limiting frame 45 is large, providing space for the deviation of the traction rope 37.

[0046] A method, comprising a material strength automatic detection device for knitted fabric processing, by setting the telescopic clamp 2 and the yarn taking device 3 on the same side of the fixed head 14 and the movable head 13, when replacing the yarn, starting the fan 15, the wind enters the sliding cylinder 25 through the pipeline 16, the wind pressure in the sliding cylinder 25 increases, the bowl plate 27 moves in the direction away from or close to the fixed head 14 with the push rod 28, the connecting arc plate 29 and the compression cylinder 24 in turn, the spring 23 is stretched, the yarn is controlled to be loosened by the compression cylinder 24, facilitating the taking and placing of the yarn, the tension of the traction rope 37 is controlled by the rotation of the bidirectional motor 41, in the process of yarn detection, the traction rope 37 is relaxed, when the yarn is taken out, the traction rope 37 is tight, the bidirectional motor 41 continues to rotate, one end of the traction rope 37 is continuously wound on the rotating shaft 42, the other end of the traction rope 37 pulls the sliding block 36 to move downward in the vertical direction, in the process of the vertical plate 391 moving downward, the yarn passes through the hole expansion 392 and the necking hole 393 and contacts the cutting plate 396, the cutting plate 396 presses the yarn, the middle part of the yarn is tightened and falls off from the winding pipe 21 with the two ends as the cutting plate 396 moves downward, when the yarn cannot fall off from the winding pipe 21, the pressure of the cutting plate 396 on the middle part of the yarn increases continuously until the cutting plate 396 cuts the yarn, the yarn is divided into multiple small sections, facilitating the taking of the small sections of the yarn from each winding pipe 21.

[0047] In use, the two ends of the yarn are connected on the fixed head 14 and the movable head 13 in turn, one yarn taking device 3 is arranged between adjacent winding pipes 21, one end of the yarn passes through all the winding pipes 21 and the hole expansion 392 of the vertical plate 391 in turn, usually two winding pipes 21 and one yarn taking device 3 are connected on the fixed head 14 and the movable head 13, one end of the yarn is wound on one winding pipe 21 first, then passes through the hole expansion 392, the diameter of the hole expansion 392 is large, facilitating the passing of the yarn, finally the other end of the yarn is wound on another winding pipe 21, after the two ends of the yarn are fixed, the fan 15 is turned off, the wind in the sliding cylinder 25 flows out through the electromagnetic air valve, the wind pressure between the inner wall of the sliding cylinder 25 and the bowl plate 27 decreases, the bowl plate 27 moves in the direction close to the fixed head 14 with the push rod 28, the connecting arc plate 29 and the compression cylinder 24 in turn, the first spring 23 recovers, the compression cylinder 24 tightens the yarn, the bidirectional motor 41 rotates, the traction rope 37 is released, the traction rope 37 between the sliding block 36 and the second winding rod 44 remains relaxed and does not affect the detection of the yarn.

[0048] After the yarn detection is completed, the detected yarn needs to be taken down, the fan 15 is started, the wind enters all the sliding tubes 25 through the pipeline 16, the wind pressure between the inner wall of the sliding tube 25 and the bowl plate 27 is increased, the plate moves in the direction away from the fixed head 14 with the push rod 28, the connecting arc plate 29 and the pressing cylinder 24 in turn, the first spring 23 pulls the rope, the pressing cylinder 24 moves away from the yarn, and all the yarns are no longer tightly pressed. The bidirectional motor 41 is started, the rotating end of the bidirectional motor 41 rotates with the rotating shaft 42, the bottom end of the traction rope 37 is continuously wound on the rotating shaft 42, the top end of the traction rope 37 moves towards the rotating shaft 42, the outer box is slidably connected with the sliding block 36, the sliding hole 32 is slidably connected with the vertical plate 391, through the limiting of the outer box and the sliding hole 32, the top end of the traction rope 37 pulls the sliding block 36 and the vertical plate 391 to move downward in the vertical direction, in the process of moving downward of the vertical plate 391, initially the yarn is static, the cutting plate 396 moves downward with the vertical plate 391, the cutting plate 396 moves relative to the yarn, the yarn passes through the expansion hole 392 and the necking hole 393 in turn and contacts the cutting plate 396, the necking hole 393 is in the shape of an eight-character, the width of the bottom end of the necking hole 393 is much larger than the diameter of the yarn, and the inner wall of the necking hole 393 is a smooth arc surface, which facilitates the yarn to move upward along the inner wall of the necking hole 393, the width of the bottom end of the necking hole 393 is slightly larger than the diameter of the yarn, the moving space of the yarn is reduced, the yarn is limited, and the deviation angle of the yarn is small. The cutting plate 396 presses the yarn, the middle part of the yarn moves downward with the cutting plate 396, the free end (the movable end) of the yarn is tightened and falls off from the winding pipe 21, without manual taking of the yarn, the yarn is automatically taken out, and it is convenient for workers to replace the yarn. When the yarn is excessively wound on the winding pipe 21 and cannot be taken off from the winding pipe 21, the yarn is wound on multiple winding pipes 21, the yarn is too long, and it is not easy to take out all the yarn, the traction rope 37 continues to tighten, if only one end of the yarn is fixed, the cutting plate 396 can take the other end of the yarn out of the winding pipe 21, if both ends of the yarn are fixed, the cutting plate 396 continuously increases the pressure on the middle part of the yarn, until the cutting plate 396 cuts the yarn, the yarn is divided into multiple small sections, and it is convenient to take the small section of the yarn out of each winding pipe 21. Various working conditions can be coped with, the adaptability is strong, the use is convenient, the yarn replacement time is shortened, and the detection efficiency is improved.

[0049] The present application encompasses any alternatives, modifications, equivalent methods and solutions made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, the specific details are described in the above preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0050] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. An automatic material strength detection device for knitted fabric processing, characterized in that: include: A movable head (13) and a fixed head (14) are symmetrically arranged along the transverse axis of the housing (11); a telescopic clamp (2) and a thread-taking device (3) are connected to the same side of the movable head (13) and the fixed head (14); the telescopic clamp (2) is connected to a fan (15) through a pipe (16); the telescopic clamp (2) is used to telescope and loosen the yarn under the action of gas; the thread-taking device (3) is used to pull the yarn under the action of traction and make the yarn fall off from the winding place or directly cut the yarn from the middle; the thread-taking device (3) includes an outer box, The inner wall of the outer box is slidably connected to a slider (36), the bottom of the slider (36) is connected to the bottom wall of the outer box through a second spring (38) (23), the inner wall of the housing (11) is connected to a bidirectional motor (41), the rotating end of the bidirectional motor (41) is wound with a traction rope (37), the other end of the traction rope (37) is connected to the center of the bottom of the slider (36), and the top of the slider (36) is connected to a tangent piece (39), which is used to drive the yarn and cut the yarn when at least one end of the yarn cannot move.

2. The automatic material strength detection device for knitted fabric processing according to claim 1, characterized in that: The wire-taking device (3) further comprises: a side plate (33), the side plate (33) being slidably connected to the slider (36), a window (34) being provided in the middle of each side plate (33), both ends of the side plate (33) being connected to the end plate (31), the side plate (33) and the end plate (31) forming an outer box, a sliding hole (32) being provided through the middle of one end plate (31), the sliding hole (32) being slidably connected to the cutting piece, and the other end plate (31) A circular hole is provided through the middle of the housing (11), the bottom of the end plate (31) is connected to the first winding rod (35), the inner wall of the middle of the housing (11) is connected to the second winding rod (44) through a fixed plate, the top end of the traction rope (37) is connected to the bottom of the slider (36), the bottom end of the traction rope (37) passes through the circular hole and is connected to the first winding rod (35) and the second winding rod (44) in turn, and the traction rope (37) in the outer box is located on the inner side of the second spring (38) (23).

3. The automatic material strength detection device for knitted fabric processing according to claim 1, characterized in that: The cutting piece (39) comprises a vertical plate (391), the bottom of the vertical plate (391) is connected to the top of the slider (36), one side of the vertical plate (391) is connected to the side of the fixed head (14) or the side of the movable head (13), the vertical plate (391) enters the outer box under the action of traction and moves in the vertical direction, a reaming hole (392) is opened in the middle of one side of the vertical plate (391), and the vertical plate (391) is provided with a plurality of holes. A necking hole (393) is provided on the same side, the bottom of the necking hole (393) is connected to the top of the expansion hole (392), a top arc plate (394) is provided on the top of the vertical plate (391), both ends of the top arc plate (394) are connected to the top of the vertical plate (391) through the foot plate (395), and a cutting plate (396) is connected to the inner wall of the middle part of the top arc plate (394), and the blade of the cutting plate (396) is vertically facing downward.

4. The automatic material strength detection device for knitted fabric processing according to claim 3, characterized in that: The shrinkage hole (393) is an eight-shaped hole, the width of the shrinkage hole (393) gradually shrinks along the vertical direction, and the width of the top of the shrinkage hole (393) is smaller than the width of the bottom of the shrinkage hole (393).

5. The automatic material strength detection device for knitted fabric processing according to claim 3, characterized in that: The expanded hole (392) is a circular hole with a missing top. The diameter of the expanded hole (392) is greater than the width of the bottom of the necked hole (393). The diameter of the inner wall of the top arc plate (394) is equal to the width of the top of the necked hole (393).

6. The automatic material strength detection device for knitted fabric processing according to claim 3, characterized in that: The telescopic clamp (2) comprises: a winding tube (21), wherein there are a plurality of winding tubes (21), one side of each winding tube (21) is connected to the side of the fixed head (14) or the side of the movable head (13), a placement groove (22) is provided on the side of each winding tube (21) away from the fixed head (14), a first spring (23) is connected to the bottom wall of each placement groove (22), one end of each first spring (23) is connected to a pressing cylinder (24), and the pressing cylinder (24) is plugged into the fixed head (14), one end of the yarn is passed through the plurality of winding tubes (21) on the fixed head (14) in turn and passes through the expanded hole (392), and the other end of the yarn is passed through the plurality of winding tubes (21) on the movable head (13) in turn and passes through the expanded hole (392), and passes through the movable head (13). The stretching action is used to detect the tensile strength of the yarn. The side of the fixed head (14) or the side of the movable head (13) is connected to a slide cylinder (25), and each slide cylinder (25) is slidably connected to a bowl plate (27). The end of the slide cylinder (25) away from the fixed head (14) is connected to a top plate (26), and the end of the bowl plate (27) away from the fixed head (14) is connected to a push plate. One end of the push plate passes through the inside of the top plate (26) and is slidably connected to the inside of the top. One end of the push plate is connected to a connecting arc plate (29). Several pressing cylinders (24) on the fixed head (14) or the movable head (13) are connected to the connecting arc plate (29) through a side plate (33). One side of each slide cylinder (25) is connected to an electronic ventilation valve, and a wire taking device (3) is provided between adjacent winding tubes (21).

7. The automatic material strength detection device for knitted fabric processing according to claim 2, characterized in that: The rotating part of the bidirectional motor (41) is connected to a rotating shaft (42), and a plurality of baffles (43) are connected to the rotating shaft (42), and two baffles (43) form a group. One end of each traction rope (37) is set between a group of baffles (43), and the bottom end of the traction rope (37) is connected to the side of the rotating shaft (42). The traction rope (37) is released or tightened by rotating the rotating shaft (42), and the bottom of each second winding rod (44) is connected to a limit frame (45).

8. The automatic material strength detection device for knitted fabric processing according to claim 7, characterized in that: The projection of one side of the limit frame (45) is a trapezoid, and the width of the inner wall of the limit frame (45) gradually shrinks in the vertical direction.

9. The automatic material strength detection device for knitted fabric processing according to claim 7, characterized in that: The width of the limit frame (45) at one end close to the transverse axis of the second winding rod (44) is smaller than the width of the limit frame (45) at one end away from the transverse axis of the second winding rod (44); the width of the limit frame (45) at one end close to the transverse axis of the second winding rod (44) is greater than the diameter of the yarn; and the width of the limit frame (45) at one end away from the transverse axis of the second winding rod (44) is equal to the diameter of the yarn.

10. A method comprising the automatic material strength detection device for knitted fabric processing according to any one of claims 1 to 9, characterized in that: By arranging the telescopic clamp (2) and the thread taking device (3) on the same side of the fixed head (14) and the movable head (13), when the yarn is replaced, the fan (15) is started, and the wind enters the slide cylinder (25) through the pipe (16), the wind pressure in the slide cylinder (25) increases, and the bowl plate (27) sequentially moves with the push rod (28), the connecting arc plate (29), and the pressure cylinder (24) in the direction away from or close to the fixed head (14), and the first spring (23) is stretched to control the pressure cylinder (24) to loosen the yarn, so as to facilitate the taking and placing of the yarn. The tension of the traction rope (37) is controlled by the rotation of the bidirectional motor (41). During the yarn detection process, the traction rope (37) is loosened. When the yarn is to be taken out, the traction rope (37) is tightened, and the bidirectional motor (41) is used to control the tension of the traction rope (37). The motor (41) continues to rotate, and one end of the traction rope (37) is continuously wound around the rotating shaft (42). The other end of the traction rope (37) pulls the slider (36) downward in the vertical direction. During the downward movement of the vertical plate (391), the yarn passes through the expansion hole (392) and the necking hole (393) and contacts the cutting plate (396). The cutting plate (396) presses the yarn downward. As the middle part of the yarn moves downward with the cutting plate (396), the two ends are tightened and fall off from the winding tube (21). When the yarn cannot fall off from the winding tube (21), the pressure of the cutting plate (396) on the middle part of the yarn continues to increase until the cutting plate (396) cuts the yarn. The yarn is divided into multiple small segments, which is convenient for removing the small segments of yarn from each winding tube (21).

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