Textile yarn fineness detection fixed-length sampling device

Abstract

The utility model belongs to the technical field of textile machinery, and discloses a textile yarn fineness detection fixed-length sampling device which comprises a rack, a detection mechanism is arranged on the rack, the detection mechanism comprises a carrier plate, and a groove is formed in the carrier plate; the bidirectional screw rod is arranged in the groove and is rotationally connected with the two ends of the groove, and one end of the bidirectional screw rod extends out of the groove; the number of the sliding blocks is two, and the two sliding blocks are in threaded connection with the two-way lead screw. The number of the measuring sheets is two, and the two measuring sheets are respectively arranged on the sliding blocks; the driving gear is coaxially connected with the bidirectional screw rod; the driven gear is meshed with the driving gear; the input end of the speed regulator is connected with the driven gear, and the speed regulator is electrically connected with a controller of the first winding mechanism and a controller of the second winding mechanism; the yarn winding device solves the problem of winding yarns with different thicknesses, and is suitable for winding and winding the yarns.

Description

Technical Field

[0001] This solution belongs to the technical field of textile machinery, and specifically relates to a device for detecting the fineness and taking fixed-length samples of textile yarns. Background Technique

[0002] Yarn is a textile made of different textile fibers, with a specific fineness, and is widely used in fields such as weaving, rope making, wire processing, knitting, and embroidery. Yarns are divided into types such as staple fiber yarns and continuous filaments, and their fineness can be measured in units such as counts, metric counts, English counts, or denier. Twist is an important characteristic of yarn, defined by the number of turns per meter or per inch. Wool yarns and wool threads are mainly used to produce clothing such as sweaters, woolen trousers, wool vests, scarves, hats, and gloves. These products not only have a warming function but also have a decorative effect. During the production process of textile yarns, a reel is needed for fixed-length winding to ensure the consistency of the yarn length.

[0003] Referring to the literature with the existing publication (announcement) number CN114275629A, a fixed-length winding and coiling machine for textile yarns is disclosed. The winding length of the textile yarn is measured by a provided fixed-length device, avoiding the situation of inaccurate fixed-length of the textile yarn caused by manual measurement and the gradually increasing outer diameter of the reel-wound textile yarn after winding. And it is wound by a guiding device and a winding device to ensure the tight winding of the textile yarn.

[0004] However, the above device does not take into account the thickness difference of the yarns, and using a unified winding speed for winding will cause some problems. First, the volumes of different thickness yarns wound in the same time are different. Due to the larger cross-sectional area of the thick yarn, if it is wound at the same speed as the thin yarn, it will occupy more space on the reel, resulting in a reduction in the number of yarn layers on the reel and uneven yarn density on the reel. Second, the uneven thickness of the yarns will also affect the tension control of the yarns. During high-speed winding, the thick yarn may require a greater tension to maintain stability, while the thin yarn may break or deform due to excessive tension. Content of the Utility Model

[0005] The purpose of this solution is to provide a device for detecting the fineness and taking fixed-length samples of textile yarns to solve the problem of winding yarns with different thicknesses.

[0006] To achieve the above purpose, this solution provides a device for detecting the fineness and taking fixed-length samples of textile yarns, including a frame. A first winding mechanism, a second winding mechanism, and a tensioning mechanism are provided on the frame. It also includes a detection mechanism for detecting the thickness of the yarn. The detection mechanism is provided on the frame and includes:

[0007] A carrier plate, with a groove opened on the carrier plate;

[0008] A bidirectional lead screw is disposed within the groove and rotatably connected to both ends of the groove. One end of the bidirectional lead screw extends outside the groove.

[0009] Sliders, the number of sliders is two, and the two sliders are respectively threadedly connected to the bidirectional lead screw.

[0010] Measuring pieces, the number of measuring pieces is two, and the two measuring pieces are respectively disposed on the sliders.

[0011] A driving gear is coaxially connected to the bidirectional lead screw.

[0012] A driven gear meshes with the driving gear.

[0013] A speed governor, the input end of the speed governor is connected to the driven gear, and the speed governor is electrically connected to the controllers of the first winding mechanism and the second winding mechanism.

[0014] The principle of this solution is as follows: The operator holds one end of the yarn, places it between the two measuring pieces, and rotates the driving gear to rotate the bidirectional lead screw in the same direction, so that the two sliders move relative to each other and clamp the yarn with the two measuring pieces. When the driving gear rotates, it drives the driven gear to rotate, thereby adjusting the angle of the speed governor dial, controlling the controllers of the first winding mechanism and the second winding mechanism, and then controlling the winding speeds of the first winding mechanism and the second winding mechanism through the controllers to make their winding speeds match the speed of the yarn.

[0015] The effect of this solution is as follows: Through the detection mechanism, the thickness of the yarn can be detected in real time, and the speed governor is electrically connected to the controllers of the first winding mechanism and the second winding mechanism to realize dynamic adjustment of the winding speed. In this way, no matter how the thickness of the yarn changes, the device can ensure that the winding speed matches the actual speed of the yarn, so as to ensure that the yarn density on the reel is uniform and avoid problems such as yarn breakage or deformation caused by improper winding speed.

[0016] Furthermore, a chute is provided within the groove, and the slider is slidably connected to the chute.

[0017] The principle and effect of this solution are as follows: The chute provides positioning and guiding functions for the movement of the slider.

[0018] Furthermore, a torsion spring for resetting is disposed through the bidirectional lead screw. The bidirectional lead screw is coaxially connected with a ratchet wheel, and a ratchet pawl is arranged in cooperation with the ratchet wheel.

[0019] The principle and effect of this solution are as follows: After the relative movement of the sliders drives the detection piece to abut, and after clamping and measuring the diameter of the yarn, in order to prevent the detection piece from clamping and locking the yarn, the driving gear is driven to rotate by the torsion spring so that there is a certain gap between the detection piece and the yarn, and then the rotation of the driving gear is restricted again through the cooperation of the ratchet pawl and the ratchet wheel.

[0020] Further, the measuring piece is of a semi-circular structure, and a knob is connected to one end of the bidirectional lead screw extending out of the groove.

[0021] The principle and effect of this solution are as follows: The semi-circular measuring piece adapts to the cross-sectional shape of the yarn, and the knob facilitates the operator to rotate the bidirectional lead screw by turning the knob.

[0022] Further, the first winding mechanism includes a first winding disc and a first motor for driving the first winding disc to rotate, and the controller of the first motor is electrically connected to the speed regulator.

[0023] The principle and effect of this solution are as follows: (1) The first winding disc is used for initially winding the processed silk thread. The first motor drives the first winding disc to rotate, thereby winding the yarn on the first winding disc. (2) By measuring the thickness of the yarn, the speed of the first motor is controlled through the speed regulator, so that the winding speed of the first winding disc matches the thickness of the yarn.

[0024] Further, a wire pressing mechanism is provided at the front end of the first winding mechanism. The wire pressing mechanism includes a first wire pressing roller and a second wire pressing roller that cooperates with the first wire pressing roller. The second wire pressing roller is connected to a cylinder, and the controller of the cylinder is electrically connected to the speed regulator.

[0025] The principle and effect of this solution are as follows: Through the cooperation of the first wire pressing roller and the second wire pressing roller, the yarn is evenly pressed to prevent the yarn entering the first winding mechanism from being too tight or too loose. Through the cooperation of the speed regulator and the controller, the piston rod of the cylinder is extended to drive the second wire pressing roller to a suitable position, thereby controlling the distance between the first wire pressing roller and the second wire pressing roller, and further controlling the yarn tension.

[0026] Further, the second winding mechanism includes a second winding disc and a second motor for driving the second winding disc to rotate, and the controller of the second motor is electrically connected to the speed regulator.

[0027] The principle and effect of this solution are as follows: After the yarn is initially wound by the first winding disc, the yarn is wound a second time by the second winding disc. The second motor drives the second winding disc to rotate to wind the yarn fed into the second winding disc. Through the cooperation of the speed regulator and the controller of the second motor, the winding speed of the second winding disc is controlled to match the speed of the first winding disc.

[0028] Further, a measuring device is provided on the second winding disc; a cutting mechanism is provided at the front end of the second winding mechanism, and the controller of the cutting mechanism is electrically connected to the measuring device.

[0029] The principle and effect of this solution are as follows: The number of turns of the yarn on the second winding disc is measured by a meter. When the value measured by the meter exceeds the preset value, the cutting mechanism is controlled to cut the yarn, and the yarn is cut to a fixed length.

[0030] Furthermore, the tensioning mechanism is arranged at the front end of the second winding mechanism. The tensioning mechanism includes a plurality of tensioning rollers arranged vertically and alternately, and a driving cylinder for adjusting the distance between the upper and lower tensioning rollers. The controller of the driving cylinder is electrically connected to the speed regulator.

[0031] The principle and effect of this solution are as follows: The tension of the yarn entering the second winding disc is adjusted by the vertically and alternately arranged tensioning rollers, so that the yarn maintains an appropriate tension during the winding process, avoiding breakage of the yarn due to excessive tension or slack due to insufficient tension. At the same time, the distance between the upper and lower tensioning rollers can be controlled through the cooperation of the controller and the speed regulator, so that the tension degree is adapted to the thickness of the yarn.

[0032] Furthermore, the tensioning rollers are arranged alternately to form an "S"-shaped forward route.

[0033] The principle and effect of this solution are as follows: The tensioning rollers arranged in an "S"-shaped and alternately manner can further improve the tensioning effect on the yarn. Description of the Drawings

[0034] Figure 1 is a schematic structural diagram of the device for detecting and sampling the fineness of textile yarns with a fixed length according to the present utility model Figure 1 ;

[0035] Figure 2 is a schematic structural diagram of the device for detecting and sampling the fineness of textile yarns with a fixed length according to the present utility model Figure 2 ;

[0036] Figure 3 is Figure 2 an enlarged view of part A in

[0037] Figure 4 is a schematic structural diagram of the detection mechanism of the present utility model.

[0038] The names of the corresponding marks in the drawings are: frame 1, first winding mechanism 2, first winding disc 21, second winding mechanism 3, second winding disc 31, tensioning mechanism 4, tensioning roller 41, driving cylinder 42, detection mechanism 5, carrier plate 51, groove 511, bidirectional lead screw 52, slider 53, measuring piece 54, driving gear 55, driven gear 56, speed regulator 57, wire pressing mechanism 6, first wire pressing roller 61, second wire pressing roller 62, cylinder 63, cutting mechanism 7. Detailed Embodiments

[0039] The concept and technical effects of the present utility model will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features, and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model:

[0040] Embodiment:

[0041] Please refer to Figure 1 and Figure 2 , a fixed-length sampling device for detecting the fineness of textile yarns, comprising a frame 1 built by several profiles. A wire pressing mechanism 6, a detection mechanism 5, a first winding mechanism 2, a cutting mechanism 7, a tensioning mechanism 4, and a second winding mechanism 3 are successively arranged on the frame 1. The detection mechanism 5 is arranged at the forefront, which is the most advanced end of the yarn. The wire pressing mechanism 6 is arranged at the rear end of the detection mechanism 5, the first winding mechanism 2 is arranged at the rear end of the detection mechanism 5, the cutting mechanism 7 is arranged at the rear end of the first winding mechanism 2, the tensioning mechanism 4 is arranged at the rear end of the cutting mechanism 7, and the second winding mechanism 3 is located at the very end of the production line.

[0042] Please refer to Figure 4, the detection mechanism 5 is arranged on the frame 1. The detection mechanism 5 includes a carrier plate 51 and a bidirectional lead screw 52. The carrier plate 51 is provided with a groove 511. The bidirectional lead screw 52 is arranged in the groove 511 and is rotatably connected to both ends of the groove 511. One end of the bidirectional lead screw 52 extends out of the groove 511 and is connected with a knob, which is convenient for rotating the bidirectional lead screw 52 through the knob. Two symmetrically arranged sliders 53 are threadedly connected to the bidirectional lead screw 52. A chute is arranged in the groove 511, and the slider 53 is slidably connected to the chute. The chute provides positioning and guiding functions for the movement of the slider 53. A semi-circular measuring piece 54 is arranged on the slider 53. The bidirectional lead screw 52 is coaxially and fixedly connected with a driving gear 55. A driven gear 56 is rotatably connected to the carrier plate 51. The driven gear 56 meshes with the driving gear 55. The driven gear 56 is coaxially connected with a speed regulator 57. The speed regulator 57 is electrically connected to the controllers of the first winding mechanism 2 and the second winding mechanism 3. The operator holds one end of the yarn, places it between the two measuring pieces 54, rotates the knob to make the driving gear 55 and the bidirectional lead screw 56 rotate in the same direction, so that the two sliders 53 move relatively and clamp the yarn with the two measuring pieces 54. When the driving gear 55 rotates, it drives the driven gear 56 to rotate, thereby adjusting the angle of the dial of the speed regulator 57, controlling the controllers of the first winding mechanism 2 and the second winding mechanism 3, and then controlling the winding speeds of the first winding mechanism 2 and the second winding mechanism 3 through the controllers to make their winding speeds match the speed of the yarn. When the sliders 53 move relatively and drive the detection piece 54 to contact, after clamping and measuring the diameter of the yarn, to prevent the detection piece 54 from locking the yarn tightly, a torsion spring for resetting is arranged through the bidirectional lead screw 52. The bidirectional lead screw 52 is coaxially connected with a ratchet wheel, and a ratchet pawl is arranged in cooperation with the ratchet wheel. The driving gear 55 is driven to rotate by the torsion spring so that a certain gap is reserved between the detection piece 54 and the yarn, and then the rotation of the driving gear 55 is restricted again through the cooperation of the ratchet pawl and the ratchet wheel.

[0043] Please refer to Figure 2 and Figure 3 , the first winding mechanism 2 includes a first winding disc 21 and a first motor for driving the first winding disc 21 to rotate. The controller of the first motor is electrically connected to the speed regulator 57. The first winding disc 21 is used for initially winding the processed silk thread. The first motor drives the first winding disc 21 to rotate, so as to wind the yarn on the first winding disc 21. Then, by measuring the thickness of the yarn, the speed of the first motor is controlled through the speed regulator 57, so that the winding speed of the first winding disc 21 matches the thickness of the yarn.

[0044] The wire pressing mechanism 6 includes a first wire pressing roller 61 and a second wire pressing roller 62 that cooperates with the first wire pressing roller 61. The second wire pressing roller 62 is connected to a cylinder 63, and the controller of the cylinder 63 is electrically connected to the speed regulator 57. Through the cooperation of the first wire pressing roller 61 and the second wire pressing roller 62, the yarn is evenly pressed to avoid the yarn entering the first winding mechanism 2 from being too tight or too loose. Through the cooperation of the speed regulator 57 and the controller, the piston rod of the cylinder 63 extends to drive the second wire pressing roller 62 to an appropriate position, thereby controlling the distance between the first wire pressing roller 61 and the second wire pressing roller 62, and further controlling the yarn tension.

[0045] Please refer to Figure 1 and Figure 2 As shown in, the second winding mechanism 3 includes a second winding disc 31 and a second motor for driving the second winding disc 31 to rotate. The controller of the second motor is electrically connected to the speed regulator 57. After the yarn is preliminarily wound by the first winding disc 21, the yarn is secondarily wound by the second winding disc 31. The second motor drives the second winding disc 31 to rotate to wind the yarn fed into the second winding disc 31. Through the cooperation of the speed regulator 57 and the controller of the second motor, the winding speed of the second winding disc 31 is controlled to match the speed of the first winding disc 21. A meter is provided on the second winding disc 31; a cutting device 7 is provided at the front end of the second winding mechanism 3, and the controller of the cutting device 7 is electrically connected to the meter. By measuring the number of turns of the yarn on the second winding disc 31 by the meter, when the measured value exceeds the preset value, the cutting mechanism 7 is controlled to cut the yarn, and the yarn is cut to a fixed length.

[0046] The tensioning mechanism 4 is provided at the front end of the second winding mechanism 3. The tensioning mechanism 4 includes a plurality of tensioning rollers 41 arranged vertically and staggered, which form an "S"-shaped advancing route. It also includes a driving cylinder 42 for adjusting the distance between the upper and lower tensioning rollers 41. The controller of the driving cylinder 42 is electrically connected to the speed regulator 57. The tension of the yarn entering the second winding disc 31 is adjusted by the vertically staggered tensioning rollers 41, so that the yarn maintains an appropriate tension during the winding process, avoiding the yarn from breaking due to excessive tension or loosening due to insufficient tension. At the same time, through the cooperation of the controller and the speed regulator 57, the distance between the upper and lower tensioning rollers 41 can be controlled to make the tension degree adapt to the thickness of the yarn.

[0047] The above are only the embodiments of the present invention. Common general knowledge such as specific structures and characteristics in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, which will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners in the specification and the like can be used to interpret the content of the claims.

Claims

1. A fixed-length sampling device for detecting the fineness of textile yarns, comprising a frame (1), wherein the frame (1) is provided with a first winding mechanism (2), a second winding mechanism (3) and a tensioning mechanism (4), characterized in that: It also comprises a detection mechanism (5), the detection mechanism (5) being used to detect the thickness of the yarn; the detection mechanism (5) is arranged on the frame (1), and the detection mechanism (5) comprises: A carrier plate (51), wherein the carrier plate (51) is provided with a groove (511); a bidirectional screw rod (52), the bidirectional screw rod (52) being disposed in the groove (511) and being rotatably connected to both ends of the groove (511), and one end of the bidirectional screw rod (52) extending out of the groove (511); Sliding blocks (53), the number of the sliding blocks (53) being two, and the two sliding blocks (53) being respectively threadedly connected to the bidirectional screw rod (52); Measuring pieces (54), the number of the measuring pieces (54) being two, and the two measuring pieces (54) being respectively arranged on the slider (53); A driving gear (55), wherein the driving gear (55) is coaxially connected to the bidirectional screw rod (52); A driven gear (56), wherein the driven gear (56) meshes with the driving gear (55); A speed regulator (57), wherein an input end of the speed regulator (57) is connected to the driven gear (56), and the speed regulator (57) is electrically connected to controllers of the first winding mechanism (2) and the second winding mechanism (3).

2. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1 is characterized in that: A sliding groove is provided in the groove (511), and the sliding block (53) is slidably connected to the sliding groove.

3. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1, characterized in that: The bidirectional screw rod (52) is provided with a torsion spring for resetting the screw rod, and the bidirectional screw rod (52) is coaxially connected to a ratchet wheel, and the ratchet wheel is provided with a pawl in cooperation with the ratchet wheel.

4. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1, characterized in that: The measuring piece (54) is a semicircular structure, and one end of the bidirectional screw rod (52) extending outside the groove (511) is connected to a knob.

5. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1, characterized in that: The first winding mechanism (2) comprises a first winding drum (21) and a first motor for driving the first winding drum (21) to rotate, and a controller of the first motor is electrically connected to a speed regulator (57).

6. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 5, characterized in that: A wire pressing mechanism (6) is provided at the front end of the first winding mechanism (2), the wire pressing mechanism (6) comprising a first wire pressing roller (61) and a second wire pressing roller (62) matched with the first wire pressing roller (61), the second wire pressing roller (62) being connected to a cylinder (63), and a controller of the cylinder (63) being electrically connected to a speed regulator (57).

7. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1, characterized in that: The second winding mechanism (3) comprises a second winding drum (31) and a second motor for driving the second winding drum (31) to rotate, and a controller of the second motor is electrically connected to a speed regulator (57).

8. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 7, characterized in that: A meter is provided on the second winding reel (31); a cutting mechanism (7) is provided at the front end of the second winding mechanism (3); and a controller of the cutting mechanism (7) is electrically connected to the meter.

9. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 1, characterized in that: The tensioning mechanism (4) is arranged at the front end of the second winding mechanism (3), and comprises a plurality of tensioning rollers (41) arranged in an upper and lower staggered manner, and a driving cylinder (42) for adjusting the distance between the upper and lower tensioning rollers (41), wherein the controller of the driving cylinder (42) is electrically connected to the speed regulator (57).

10. The fixed-length sampling device for detecting the fineness of textile yarn according to claim 9, characterized in that: The tensioning rollers (41) are arranged in a staggered manner to form an "S"-shaped forward route.

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