Yarn tension detection mechanism

Abstract

The invention discloses a yarn tension detection mechanism, and relates to the technical field of yarn tension detection, the yarn tension detection mechanism comprises a detection table, and also comprises a single multi-section tension detection mechanism installed at the top of the detection table; according to the invention, the center tightening mechanism is installed to make the yarn in a tensioning state before segmentation, the tensioning degree and length of multiple segments of yarns are kept consistent, the consistency of detection results is guaranteed, the multiple segments of isolation clamping mechanisms are installed to divide a single yarn into multiple segments of detection segments, the multiple segments of yarns are isolated, mutual influence of the multiple segments of yarns is avoided, and the detection efficiency is improved. The method comprises the following steps of: arranging a yarn humidifying mechanism, monitoring tension data of the yarn in real time, selectively humidifying the yarn by adding a specified amount by installing the yarn humidifying mechanism, and testing the tension of the yarn by utilizing a single multi-section tension detection mechanism after humidifying, so as to obtain the tension data of the yarn with different humidity and obtain the performance of the yarn in different environments; and evaluating the yarns according to the performance data.

Description

Technical Field

[0001] The present invention relates to the technical field of yarn tension detection, and particularly to a yarn tension detection mechanism. Background Art

[0002] Yarn is a kind of textile product, processed from various textile fibers into products of a certain fineness, and is used for weaving, rope making, thread making, knitting, embroidery, etc. It is divided into staple fiber yarn, continuous filament, etc. Yarn needs to be subjected to tensile testing before processing and use to detect whether the yarn is qualified.

[0003] Currently, the tension detection of yarn is usually carried out on dry yarn. However, after the yarn is made into fabric, it will undergo operations such as water washing. Therefore, the result of tension detection on dry yarn is relatively single, and it is necessary to detect the tension of yarn under different dry and wet conditions to comprehensively reflect the performance of the yarn. Summary of the Invention

[0004] The present invention proposes a yarn tension detection mechanism to solve the above deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: A yarn tension detection mechanism includes a detection table, and further includes: A single - strand multi - segment tension detection mechanism, which is installed on the top of the detection table; A multi - segment isolation clamping mechanism, which is connected to the single - strand multi - segment tension detection mechanism; A centering and tensioning mechanism, which is connected to the single - strand multi - segment tension detection mechanism; A yarn humidifying mechanism, which is installed on the detection table; A driving mechanism, which is installed on the detection table and is connected to the single - strand multi - segment tension detection mechanism and the multi - segment isolation clamping mechanism.

[0006] Further, the detection table includes a tabletop, and a structure box is fixed on the top of the tabletop.

[0007] Further, the single - strand multi - segment tension detection mechanism includes a plurality of screws rotatably connected to the top of the tabletop, and a second gear is installed at one end of the screw; A moving plate one is sleeved on the outer thread of the screw. A first engaging tooth is fixed on the top of the moving plate one. A semi - ring anti - break member is fixed on one side of the first engaging tooth. A fillet is provided at the inner wall edge of the semi - ring anti - break member. A pressure sensor is installed inside the semi - ring anti - break member. The thread positions of two adjacent screws are symmetrically arranged, and the opening of the semi - ring anti - break member faces the thread of the screw; A chute corresponding to the moving plate one is opened on the top of the tabletop, and the moving plate one is sleeved inside the chute.

[0008] Further, the single - root multi - segment tension detection mechanism further includes a reciprocating screw rod one rotatably connected to the inner wall of the structure box, and a one - way gear one is installed at one end of the reciprocating screw rod one; A moving plate two is sleeved on the external thread of the reciprocating screw rod one, a moving plate three is sleeved on the external of the reciprocating screw rod one, a guide rod one is sleeved inside the moving plate two and the moving plate three, and the guide rod one is fixed on the inner wall of the structure box; Racks are fixed at the bottoms of the moving plate two and the moving plate three, and the racks are meshed with a plurality of gear two.

[0009] Further, the multi - segment isolation clamping mechanism includes a support plate rotatably connected to one side of the engaging teeth one, a reciprocating screw rod two is rotatably connected to the top of the support plate, a moving plate four is sleeved on the external thread of the reciprocating screw rod two, and a bevel gear one is installed at the top end of the reciprocating screw rod two; A guide rod four is fixed at the top of the support plate, the guide rod four is sleeved inside the moving plate four, an engaging teeth two is fixed on one side of the moving plate four, the engaging teeth two is matched with the teeth of the engaging teeth one, and a rubber pad is fixed at the position of the teeth of the engaging teeth two.

[0010] Further, the multi - segment isolation clamping mechanism further includes a bevel gear two meshed with the bevel gear one, a rotating shaft is fixed inside a plurality of the bevel gear two, the rotating shaft is rotatably connected to the inner wall of the structure box, and a one - way gear two is installed at one end of the rotating shaft.

[0011] Further, the centering and tensioning mechanism includes a mounting plate fixed to the opposite sides of two of the moving plates one, and the two moving plates one fixing the mounting plate are located on both sides of a plurality of the moving plates one; A guiding component is fixed at the top of the mounting plate, the guiding component corresponds to the mid - line of the engaging teeth one, a gravity block is sleeved on the external of the guiding component, two inner rods are sleeved inside the gravity block, a pushing plate is fixed at one end of the two inner rods, a spring is sleeved on the external of the inner rods, one end of the spring is fixedly connected with the pushing plate, and the other end is fixedly connected with the gravity block, and clamping plates are fixed at the other ends of the two inner rods.

[0012] Further, the yarn humidifying mechanism includes a V - shaped groove located between two adjacent moving plates one, and flexible rubber sheets are fixed on both inner walls of the V - shaped groove; A motor two is fixed at the top of the table top, a reciprocating screw rod three is fixed at the output end of the motor two, a moving frame one is sleeved on the external thread of the reciprocating screw rod three, a guide rod two is sleeved inside the moving frame one, the guide rod two is fixed at the top of the table top, a plurality of guide rod three are fixed at the top of the table top, a moving frame two is sleeved on the external of the plurality of guide rod three, and a plurality of the V - shaped grooves are fixedly connected with the moving frame one and the moving frame two.

[0013] Furthermore, the driving mechanism includes a first motor fixed to the inner wall of the structure box. A first gear is fixed to the output end of the first motor. One side of the first gear meshes with a first one-way gear, and the other side of the first gear meshes with a second one-way gear.

[0014] Furthermore, a controller is fixed to one side of the structure box. The controller is electrically connected to the first motor, the second motor, and the pressure sensor respectively.

[0015] Compared with the existing technology, the beneficial effects of the present invention are as follows: By installing a centering and tensioning mechanism, the wire is in a tensioned state before segmentation, ensuring that the tension and length of multiple yarn segments are consistent, and ensuring the consistency of the detection results. By installing a multi-segment isolation and clamping mechanism, a single yarn is divided into multiple detection segments, and the multiple yarn segments are isolated from each other to avoid mutual influence. The tension data of the yarn is monitored in real time. By installing a yarn humidifying mechanism, the yarn is selectively humidified by adding a specified amount, and after humidification, the single multi-segment tension detection mechanism is used to test the tension of the yarn, obtaining the tension data of the yarn at different humidities, obtaining the performance of the yarn in different environments, and evaluating the yarn according to the performance data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a yarn tension detection mechanism proposed by the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the single multi-segment tension detection mechanism of a yarn tension detection mechanism proposed by the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the multi-segment isolation and clamping mechanism of a yarn tension detection mechanism proposed by the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the yarn humidifying mechanism of a yarn tension detection mechanism proposed by the present invention.

[0020] Figure 5 It is a schematic diagram of the V-groove structure of a yarn tension detection mechanism proposed by the present invention.

[0021] Figure 6 It is Figure 3 The enlarged structure diagram at position A inside.

[0022] Figure 7 It is Figure 3 The enlarged structure diagram at position B inside.

[0023] In the figure: 1. Detection table; 11. Tabletop; 12. Structure box; 2. Single - root multi - segment tension detection mechanism; 21. Screw rod; 22. Gear two; 23. Moving plate one; 24. Chute; 25. Reciprocating screw rod one; 26. One - way gear one; 27. Guide rod one; 28. Moving plate two; 29. Moving plate three; 210. Rack; 211. Engaging tooth one; 212. Semi - ring anti - break part; 3. Multi - segment isolation clamping mechanism; 31. Support plate; 32. Reciprocating screw rod two; 33. Bevel gear one; 34. Guide rod four; 35. Moving plate four; 36. One - way gear two; 37. Engaging tooth two; 38. Rotating shaft; 39. Bevel gear two; 4. Centering and tensioning mechanism; 41. Mounting plate; 42. Guide assembly; 43. Gravity block; 44. Inner rod; 45. Pushing plate; 46. Spring; 47. Clamping plate; 5. Yarn humidifying mechanism; 51. Motor two; 52. Reciprocating screw rod three; 53. Moving frame one; 54. Guide rod two; 55. Guide rod three; 56. Moving frame two; 57. V - shaped groove; 58. Flexible rubber sheet; 6. Driving mechanism; 61. Motor one; 62. Gear one. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected", and "coupled" should be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0027] Example: Refer to Figures 1-7 : A yarn tension detection mechanism, including a detection table 1, further including: A single - strand multi - segment tension detection mechanism 2, which is installed on the top of the detection table 1; A multi - segment isolation clamping mechanism 3, which is connected to the single - strand multi - segment tension detection mechanism 2; A centering tensioning mechanism 4, which is connected to the single - strand multi - segment tension detection mechanism 2; A yarn humidifying mechanism 5, which is installed on the detection table 1; A driving mechanism 6, which is installed on the detection table 1 and is connected to the single - strand multi - segment tension detection mechanism 2 and the multi - segment isolation clamping mechanism 3.

[0028] The detection table 1 includes a tabletop 11, and a structure box 12 is fixed on the top of the tabletop 11.

[0029] The single - strand multi - segment tension detection mechanism 2 includes a plurality of screw rods 21 rotatably connected to the top of the tabletop 11, and a second gear 22 is installed at one end of the screw rod 21; A moving plate one 23 is sleeved on the external thread of the screw rod 21. A first engaging tooth 211 is fixed on the top of the moving plate one 23. A semi - ring anti - break member 212 is fixed on one side of the first engaging tooth 211. A fillet is provided at the inner wall edge of the semi - ring anti - break member 212. A pressure sensor is installed inside the semi - ring anti - break member 212. The thread positions of two adjacent screw rods 21 are symmetrically arranged, and the opening of the semi - ring anti - break member 212 faces the thread of the screw rod 21; A chute 24 corresponding to the moving plate one 23 is provided on the top of the tabletop 11, and the moving plate one 23 is sleeved inside the chute 24.

[0030] The single - strand multi - segment tension detection mechanism 2 further includes a reciprocating screw rod one 25 rotatably connected to the inner wall of the structure box 12, and a one - way gear one 26 is installed at one end of the reciprocating screw rod one 25; An external thread of the reciprocating screw 25 is sleeved with a second moving plate 28, and an external part of the reciprocating screw 25 is sleeved with a third moving plate 29. A first guide rod 27 is sleeved inside the second moving plate 28 and the third moving plate 29, and the first guide rod 27 is fixed to the inner wall of the structure box 12; The bottoms of the second moving plate 28 and the third moving plate 29 are fixed with racks 210, and the racks 210 are engaged with a plurality of second gears 22.

[0031] The multi-stage isolation clamping mechanism 3 includes a support plate 31 rotatably connected to one side of the first engaging teeth 211. The top of the support plate 31 is rotatably connected with a second reciprocating screw 32. An external thread of the second reciprocating screw 32 is sleeved with a fourth moving plate 35, and a first bevel gear 33 is installed at the top end of the second reciprocating screw 32; The top of the support plate 31 is fixed with a fourth guide rod 34. The fourth guide rod 34 is sleeved inside the fourth moving plate 35. One side of the fourth moving plate 35 is fixed with second engaging teeth 37. The second engaging teeth 37 are matched with the teeth of the first engaging teeth 211, and a rubber pad is fixed at the position of the teeth of the second engaging teeth 37.

[0032] The multi-stage isolation clamping mechanism 3 further includes a second bevel gear 39 engaged with the first bevel gear 33. A rotating shaft 38 is fixed inside a plurality of second bevel gears 39. The rotating shaft 38 is rotatably connected to the inner wall of the structure box 12, and a second one-way gear 36 is installed at one end of the rotating shaft 38.

[0033] The center tensioning mechanism 4 includes a mounting plate 41 fixed to the opposite sides of two of the first moving plates 23. The two first moving plates 23 fixing the mounting plate 41 are located on both sides of the plurality of first moving plates 23; The top of the mounting plate 41 is fixed with a guiding assembly 42. The guiding assembly 42 corresponds to the midline of the first engaging teeth 211. An external part of the guiding assembly 42 is sleeved with a gravity block 43. Two inner rods 44 are sleeved inside the gravity block 43. One ends of the two inner rods 44 are fixed with a pushing plate 45. A spring 46 is sleeved outside the inner rods 44. One end of the spring 46 is fixedly connected with the pushing plate 45, and the other end is fixedly connected with the gravity block 43. The other ends of the two inner rods 44 are fixed with a clamping plate 47.

[0034] The yarn humidifying mechanism 5 includes a V-shaped groove 57 located between two adjacent first moving plates 23. Flexible rubber sheets 58 are fixed to both inner walls of the V-shaped groove 57; A second motor 51 is fixed to the top of the table 11. An output end of the second motor 51 is fixed with a third reciprocating screw 52. An external thread of the third reciprocating screw 52 is sleeved with a first moving frame 53. A second guide rod 54 is sleeved inside the first moving frame 53, and the second guide rod 54 is fixed to the top of the table 11. A plurality of third guide rods 55 are fixed to the top of the table 11. A second moving frame 56 is sleeved outside the plurality of third guide rods 55. A plurality of V-shaped grooves 57 are fixedly connected with the first moving frame 53 and the second moving frame 56.

[0035] The driving mechanism 6 includes a first motor 61 fixed to the inner wall of the structure box 12. A first gear 62 is fixed to the output end of the first motor 61. One side of the first gear 62 meshes with a first one-way gear 26, and the other side of the first gear 62 meshes with a second one-way gear 36.

[0036] A controller is fixed to one side of the structure box 12. The controller is electrically connected to the first motor 61, the second motor 51, and the pressure sensor respectively.

[0037] Working principle: Place the yarn to be detected between the first engaging teeth 211 and the second engaging teeth 37. Then lift up structures such as the gravity block 43 to the top of the guiding assembly 42. Press the push plate 45 to squeeze the spring 46, so that the inner rod 44 pushes the clamping plate 47 away from the gravity block 43. Then clamp one end of the yarn between the clamping plate 47 and the gravity block 43, and operate the other end in the same way. After releasing, the gravity block 43 moves down along the guiding assembly 42, applying a tensile force to both ends of the yarn, making the yarn between the first engaging teeth 211 and the second engaging teeth 37 in a tensioned state, ensuring that the tension and length of multiple sections of yarn are consistent, and ensuring the consistency of the detection results; The controller controls the first motor 61 to drive the first gear 62 to reverse. When the first gear 62 reverses, it meets the rotation direction for the second one-way gear 36 to drive the rotating shaft 38 to rotate. The rotating shaft 38 drives a plurality of second bevel gears 39 to rotate. The second bevel gears 39 drive the first bevel gear 33 and the second reciprocating screw 32 to rotate. When the second reciprocating screw 32 rotates, the fourth moving plate 35 drives the second engaging teeth 37 to move down along the fourth guiding rod 34 to engage with the first engaging teeth 211, biting the yarn located therebetween. The rubber pad installed on the second engaging teeth 37 further prevents the yarn from slipping, and avoids breakage at the engaging part during the tension detection. Also, it has a water-proof function during the simultaneous wet and dry detection. After biting, a single yarn is evenly divided into multiple sections of yarn; Select to humidify or dry multiple sections of yarn. Selectively add liquid to multiple V-shaped grooves 57. For example, for four sections of yarn, you can choose two to be dry and the other two to be wet. The amount of humidity depends on the amount of water added to the V-shaped grooves 57. The more water, the higher the humidity. Start the second motor 51 to drive the third reciprocating screw 52 to rotate, so that the first moving frame 53, the second moving frame 56, and multiple V-shaped grooves 57 move up to sleeve the yarn inside the V-shaped grooves 57. The tensioned yarn presses down the flexible rubber sheet 58 to contact the water inside and absorb the water. Then continue to drive the third reciprocating screw 52 to rotate to move the V-shaped grooves 57 down, preparing for detection.

[0038] The controller controls the motor 161 to drive the gear 162 to rotate forward. The forward rotation of the gear 162 satisfies the direction of the one-way gear 126 to drive the reciprocating screw 125 to rotate. The reciprocating screw 125 rotates to make the moving plate 28 drive the rack 210 and the moving plate 3 29 to move. When the rack 210 moves, it simultaneously drives the multiple gears 22 to rotate, so that the multiple screws 21 rotate. The rotation of the screw 21 makes the moving plate 123 drive the structures such as the bite teeth 1211 and the bite teeth 237 along the slide groove 24 to pull the bitten wire to move. The two adjacent moving plates 123 move away from each other, so that the multiple moving plates 123 move in a wave shape, and the arc of the yarn and the semi-ring anti-breakage piece 212 The surface is in contact with the pressure sensor inside, and the two adjacent moving plates 23 are staggered, resulting in an increase in the distance between them. The increased distance will cause the yarn to be pulled and extended, and the pressure sensor obtains the pressure of the yarn on the pressure sensor after the stagger, and judges the tension of the yarn at this time according to the pressure. After the yarn breaks due to pulling, the pressure obtained by the pressure sensor drops sharply, and it is judged that the yarn is broken, and the tension data of the break is recorded to obtain the tension limit of the yarn section. The controller obtains the tension of the yarn of the same material, the same tension and the same length under the conditions of different dryness and humidity according to the yarn detection data, and judges the performance of the yarn material according to the tension.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A yarn tension detection mechanism, comprising a detection table (1), characterized in that, It further includes: A single multi-segment tension detection mechanism (2), which is installed on the top of the detection table (1); A multi-segment isolation clamping mechanism (3), which is connected to the single multi-segment tension detection mechanism (2); A centering tensioning mechanism (4), which is connected to the single multi-segment tension detection mechanism (2); A yarn humidifying mechanism (5), which is installed on the detection table (1); A driving mechanism (6), which is installed on the detection table (1) and is connected to the single multi-segment tension detection mechanism (2) and the multi-segment isolation clamping mechanism (3).

2. The yarn tension detection mechanism according to claim 1, characterized in that, The detection table (1) includes a tabletop (11), and a structure box (12) is fixed on the top of the tabletop (11).

3. The yarn tension detection mechanism according to claim 2, characterized in that, The single multi-segment tension detection mechanism (2) includes a plurality of screw rods (21) rotatably connected to the top of the tabletop (11), and a second gear (22) is installed at one end of the screw rod (21); A first moving plate (23) is sleeved on the outer thread of the screw rod (21). A first engaging tooth (211) is fixed on the top of the first moving plate (23). A semi-circular ring anti-breaking part (212) is fixed on one side of the first engaging tooth (211). A fillet is provided at the inner wall edge of the semi-circular ring anti-breaking part (212). A pressure sensor is installed inside the semi-circular ring anti-breaking part (212). The thread positions of two adjacent screw rods (21) are symmetrically arranged, and the opening of the semi-circular ring anti-breaking part (212) faces the thread of the screw rod (21); A chute (24) corresponding to the first moving plate (23) is provided on the top of the tabletop (11), and the first moving plate (23) is sleeved inside the chute (24).

4. A yarn tension detection mechanism according to claim 3, characterized in that, The single multi-segment tension detection mechanism (2) further includes a first reciprocating screw rod (25) rotatably connected to the inner wall of the structure box (12), and a first one-way gear (26) is installed at one end of the first reciprocating screw rod (25); A second moving plate (28) is sleeved on the outer thread of the first reciprocating screw rod (25). A third moving plate (29) is sleeved on the outer part of the first reciprocating screw rod (25). A first guide rod (27) is sleeved inside the second moving plate (28) and the third moving plate (29), and the first guide rod (27) is fixed on the inner wall of the structure box (12); Rack bars (210) are fixed to the bottoms of the second moving plate (28) and the third moving plate (29), and the rack bars (210) are engaged with the plurality of second gears (22).

5. The yarn tension detection mechanism according to claim 4, characterized in that The multi-segment isolation clamping mechanism (3) includes a support plate (31) rotatably connected to one side of the first engaging tooth (211). A second reciprocating screw rod (32) is rotatably connected to the top of the support plate (31). A fourth moving plate (35) is sleeved on the outer thread of the second reciprocating screw rod (32), and a first bevel gear (33) is installed at the top end of the second reciprocating screw rod (32); A fourth guide rod (34) is fixed to the top of the support plate (31). The fourth guide rod (34) is sleeved inside the fourth moving plate (35). A second engaging tooth (37) is fixed to one side of the fourth moving plate (35). The second engaging tooth (37) is engaged with the teeth of the first engaging tooth (211), and a rubber pad is fixed at the position of the teeth of the second engaging tooth (37).

6. The yarn tension detecting mechanism according to claim 5, wherein, The multi-stage isolation clamping mechanism (3) further includes a bevel gear two (39) meshing with the bevel gear one (33). A rotating shaft (38) is fixed inside a plurality of the bevel gears two (39). The rotating shaft (38) is rotatably connected to the inner wall of the structure box (12). One end of the rotating shaft (38) is provided with a one-way gear two (36).

7. The yarn tension detection mechanism according to claim 6, characterized in that, The centering and tensioning mechanism (4) includes a mounting plate (41) fixed to the opposite sides of two of the first moving plates (23). The two first moving plates (23) fixing the mounting plate (41) are located on both sides of the plurality of first moving plates (23). A guiding component (42) is fixed to the top of the mounting plate (41). The guiding component (42) corresponds to the midline of the engaging teeth one (211). A gravity block (43) is sleeved outside the guiding component (42). Two inner rods (44) are sleeved inside the gravity block (43). One end of the two inner rods (44) is fixed with a push plate (45). A spring (46) is sleeved outside the inner rod (44). One end of the spring (46) is fixedly connected to the push plate (45), and the other end is fixedly connected to the gravity block (43). The other ends of the two inner rods (44) are fixed with clamping plates (47).

8. A yarn tension detection mechanism according to claim 7, wherein, The yarn humidifying mechanism (5) includes a V-shaped groove (57) located between two adjacent first moving plates (23). Flexible rubber sheets (58) are fixed to both inner walls of the V-shaped groove (57). A second motor (51) is fixed to the top of the tabletop (11). A reciprocating screw three (52) is fixed to the output end of the second motor (51). A first moving frame (53) is threadedly sleeved outside the reciprocating screw three (52). A second guiding rod (54) is sleeved inside the first moving frame (53). The second guiding rod (54) is fixed to the top of the tabletop (11). A plurality of third guiding rods (55) are fixed to the top of the tabletop (11). A second moving frame (56) is sleeved outside the plurality of third guiding rods (55). The plurality of V-shaped grooves (57) are fixedly connected to the first moving frame (53) and the second moving frame (56).

9. The yarn tension detection mechanism according to claim 8, characterized in that, The driving mechanism (6) includes a first motor (61) fixed to the inner wall of the structure box (12). A first gear (62) is fixed to the output end of the first motor (61). One side of the first gear (62) meshes with the one-way gear one (26), and the other side of the first gear (62) meshes with the one-way gear two (36).

10. The yarn tension detection mechanism according to claim 9, characterized in that, A controller is fixed to one side of the structure box (12). The controller is electrically connected to the first motor (61), the second motor (51), and the pressure sensor respectively.

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