Yarn twist testing device and testing method

Abstract

The present invention relates to the technical field of yarn twist testing, and specifically discloses a yarn twist testing device and a testing method. The yarn twist testing device comprises a base and a rotating mechanism, a counting mechanism is provided on the rotating mechanism, a plurality of wire clamping groups are sequentially arranged on the base, a cutter assembly is provided between adjacent wire clamping groups, the wire clamping group comprises a fixed assembly and a rotating assembly, and a wire clamping structure is respectively provided on the fixed assembly and the rotating assembly; a transmission assembly is provided between the rotating mechanism and the rotating wheel, the transmission assembly comprises a transmission shaft and a transmission wheel, the transmission wheel and the transmission shaft are slidably matched, and when the transmission wheel rotates, it drives the rotating wheel in contact with it to rotate. The yarn twist testing device and the testing method of the present invention only need to install the yarn once, and can quickly test the twist of three sections of yarn, which is not only convenient to operate and improves the testing efficiency, but also takes the average value of three tests, thereby improving the testing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of yarn twist testing, and in particular to a yarn twist testing device and a testing method. Background Art

[0002] Twist refers to the number of twists per unit length of yarn. It reflects the tightness of the twisting of fibers or monofilaments in the yarn. It has a direct impact on the physical properties of the yarn, the style of the fabric and the wearing performance of the garment. Therefore, twist testing of yarn is an indispensable part of the textile production process.

[0003] The Chinese patent with announcement number CN218666501U discloses a fully automatic yarn twisting machine, including a base, a control box is installed on one side of the top of the base, a pair of mounting rods are installed on the top of the base on the side close to the control box, and a cross bar is connected between the pair of mounting rods, a mounting seat is sleeved on the outside of the cross bar, and a first motor is installed inside the mounting seat, and both output ends of the first motor are connected to a rotating rod through a coupling transmission, one end of the rotating rod is sleeved with an active bevel gear, threaded rods are vertically installed on both sides of the inside of the mounting seat, and a driven bevel gear is sleeved at the bottom of the threaded rod, one end of the pair of threaded rods passes through the mounting seat and is connected with a connecting rod, and a wire cutter is installed at the bottom end of the connecting rod, a fixing plate is also installed on the base, a first telescopic rod is connected to the bottom of the fixing plate, a left clamping plate is connected to the bottom end of the first telescopic rod, and a rotating shaft is provided at the connection between the left clamping plate and the adjusting rod, a second motor is installed inside the control box, the second motor is connected to the rotating shaft, a pillar is installed on the rotating shaft, a second telescopic rod is installed at the bottom end of the pillar, and the second telescopic rod is connected to the right clamping plate.

[0004] When testing the twist of the yarn, the above technical scheme fixes one end of the yarn by the left clamp and the adjusting rod, fixes the other end of the yarn by the right clamp and the rotating shaft, cuts the yarn by driving the wire cutter up and down, and then controls the second motor to drive the rotating shaft and the yarn to rotate and untwist, and stops rotating when the yarn forms multiple parallel thin yarns. The number of twists untwisted is the number of twists of the yarn sample of this length.

[0005] In order to improve the accuracy of yarn twist testing, it is usually necessary to take an average value after multiple tests, so multiple threading tests are required, and the yarn needs to be cut for each test. This is not only cumbersome to operate and affect the test efficiency, but also causes waste of yarn.

[0006] Therefore, the art needs a yarn twist testing device and a testing method to solve the above problems. Summary of the invention

[0007] The present invention provides a yarn twist testing device and a testing method, aiming to solve the problem that the yarn twist testing device in the related art can only perform a single twist test on the yarn, the test accuracy is low, and the operation is cumbersome when multiple tests are performed to obtain an average value in order to improve the accuracy.

[0008] On the one hand, the present invention provides a yarn twist tester, comprising a base and a rotating mechanism arranged on the base, a counting mechanism is arranged on the rotating mechanism, and the extending direction of the rotating axis of the rotating mechanism is defined as the left-right direction, a plurality of wire clamping groups are arranged in sequence on the base along the left-right direction, a cutter assembly is arranged between adjacent wire clamping groups, the wire clamping group comprises a fixed assembly and a rotating assembly, the fixed assembly comprises a fixed plate fixedly connected to the base and a wire clamping structure arranged on the fixed plate, and the rotating assembly comprises a mounting plate fixedly connected to the base, a rotating wheel rotatably connected to the mounting plate, and a wire clamping structure arranged on the rotating wheel;

[0009] A transmission assembly is arranged between the rotating mechanism and the rotating wheel, and the transmission assembly includes a transmission shaft and a transmission wheel. The transmission shaft is in transmission cooperation with the rotating mechanism, and the transmission wheel is slidingly cooperated with the transmission shaft in the left and right directions. A limiting structure for limiting the relative position relationship between the transmission wheel and the transmission shaft is arranged on the base. When the rotating mechanism rotates, the transmission wheel is driven to rotate through the transmission shaft, and the transmission wheel drives the rotating wheel in contact with it to rotate.

[0010] After the yarn is clamped on the three clamping groups by the clamping structure, the yarn between two adjacent clamping groups is cut by the cutter assembly, so that the yarns clamped by each clamping group do not interfere with each other. By sliding the transmission wheel along the transmission shaft, the transmission wheel contacts the rotating wheels of the three clamping groups in sequence, and the twist of the yarn clamped by the three clamping groups is tested in sequence, and finally the average value is taken to obtain a more accurate twist. The yarn twist test device of the present invention only needs to install the yarn once, and can quickly test the twist of three sections of yarn. It is not only easy to operate and improve the test efficiency, but also takes the average value of three tests to improve the test accuracy.

[0011] Preferably, the rotating mechanism includes a support fixedly connected to the base and a gear 1 rotatably connected to the support, the gear 1 is connected to a handle, and the transmission shaft is fixedly connected to a gear 2 meshing with the gear 1, and when the gear 1 rotates, it drives the gear 2 and the transmission shaft to rotate.

[0012] Preferably, a fixing rod is symmetrically arranged on the base, a connecting rod 1 is hinged between the transmission shaft and the fixing rod, the limiting structure includes a limiting plate and a limiting rod, the limiting plate is fixedly connected to the base, a guide groove is opened on the limiting plate, the guide groove includes limiting grooves corresponding to the positions of each rotating wheel and sliding grooves connecting each limiting groove, the sliding groove is located above the limiting groove, a connecting rod 2 is hinged between the limiting rod and the transmission wheel, the limiting rod is penetrated through the guide groove, and the limiting rod has blocking edges extending from both sides of the limiting plate, when the limiting rod is located in the limiting groove, the transmission wheel contacts the corresponding rotating wheel, and when the limiting rod is located in the sliding groove, the transmission wheel is separated from the rotating wheel.

[0013] The position of the transmission wheel is adjusted by the cooperation of the limit rod and the sliding groove, so that the transmission wheel can slide along the transmission shaft, and the transmission wheel does not contact the rotating wheel during the sliding process, thereby reducing the resistance when adjusting the transmission wheel. The relative position of the transmission wheel and the rotating wheel is fixed by the cooperation of the limit rod and the limit groove, so that the transmission wheel and the rotating wheel are in stable contact, thereby ensuring stable transmission during the rotation process.

[0014] Preferably, the wire clamping structure includes a mounting shell and a wire clamping plate, the wire clamping plate is slidably matched with the mounting shell in the vertical direction, and two connecting rods three are hinged on the top of the wire clamping plate, a sliding rod is vertically slidably connected to the mounting shell, and two connecting rods four are hinged on the sliding rod, the two connecting rods four are hinged to the corresponding connecting rod three through hinged rods, respectively, the hinged rods are slidably matched with the mounting shell in the horizontal direction, a spring is connected between the top of the wire clamping plate and the mounting shell, the spring presses the wire clamping plate against the bottom of the mounting shell, and a pressing mechanism is provided on the base, when the pressing mechanism presses the sliding rod downward, the two hinged rods move away from each other, driving the wire clamping plate to lift upward.

[0015] The thread clamping plate is lifted by pressing the slide bar to provide space for inserting the yarn. When the slide bar is pressed down, the thread clamping plate automatically clamps the yarn downward under the elastic force of the spring. The operation is simple and quick.

[0016] Preferably, the pressing mechanism includes a pressing rod and a connecting rod. The pressing rod is located above the sliding rod of each wire clamping structure. The connecting rod connects all the pressing rods. The connecting rod is fixedly connected with a movable rod that penetrates the limiting plate. The movable rod is vertically slidably connected to the limiting plate. A stopper is elastically connected to the limiting plate. When the movable rod is below the stopper, the pressing rod presses the sliding rod to lift the wire clamping plate upward. When the movable rod is above the stopper, the pressing rod is out of contact with the sliding rod.

[0017] All the pressing rods are connected by a connecting rod. All the pressing rods can be driven to move synchronously by simply toggling the movable rod. The position of the movable rod is temporarily fixed by a block, so there is no need to press the movable rod manually all the time, which is convenient for single-person operation.

[0018] Preferably, a mounting block extends from the limit plate, the stop block is inserted into the mounting block, and a spring is connected to the mounting block. The stop block is provided with inclined surface one and inclined surface two. When the movable rod moves downward and contacts inclined surface one, inclined surface one is squeezed to drive the stop block to move into the mounting block. When the movable rod moves upward and contacts inclined surface two, inclined surface two is squeezed to drive the stop block to move into the mounting block.

[0019] Preferably, a positioning rod is fixedly connected inside the mounting shell, and avoidance grooves for yarn to be placed are respectively opened on the mounting shell, the rotating wheel and the mounting plate, and the side of the positioning rod facing the opening of the avoidance groove is located in the same vertical plane as the central axis of the rotating wheel.

[0020] By providing the positioning rod, when the yarn is put in, the yarn is made to lean against the positioning rod, so that the yarn is put in at a consistent position, which is conducive to smooth untwisting.

[0021] Preferably, the cutter assembly includes a vertical rod, a blade fixedly connected to the bottom of the vertical rod and a cutting table located below the blade. The cutting table is fixedly connected to an adjacent fixed plate. The vertical rod is elastically connected to a mounting shell on the adjacent fixed plate in the vertical direction. When the vertical rod is pressed downward, the vertical rod drives the blade to cut the yarn.

[0022] Preferably, the counting mechanism includes a mounting rod, a dial rotatably connected to the mounting rod and a worm, gear 1 is rotatably connected to the support through the worm, a gear ring matching the worm is arranged on the outer periphery of the dial, scales and a pointer are arranged on the dial, the mounting rod is rotatably connected to the support, and a torsion spring is arranged at the rotating connection, which drives the gear ring on the dial to press against the worm.

[0023] On the other hand, the present invention further provides a yarn twist testing method, wherein the yarn twist testing method uses the yarn twist testing device described in any one of the above preferred technical solutions, and the yarn twist testing method comprises the following steps:

[0024] S1, placing the yarn into the clamping structure of multiple clamping groups, controlling the cutter assembly to cut the yarn, so that the yarn between two adjacent clamping groups is disconnected;

[0025] S2, adjusting the transmission wheel along the transmission shaft so that the transmission wheel contacts the rotating wheel of one of the clamping groups;

[0026] S3, rotating the rotating mechanism, so that the rotating mechanism drives the transmission shaft to rotate, the transmission shaft drives the rotating wheel to rotate through the transmission wheel, the rotating wheel drives the yarn to rotate and untwist through the clamping structure, and the counting mechanism counts the number of rotations of the rotating mechanism;

[0027] S4, after testing the twist of the yarn clamped by a thread clamping group, resetting the counting mechanism to zero;

[0028] S5, adjusting the transmission wheel along the transmission shaft so that the transmission wheel contacts the rotating wheel of another clamping group;

[0029] S6. Repeat the above steps S3 to S5 until the twist of the yarns clamped by all the thread clamping groups is tested, and then calculate the average twist of the tested yarns.

[0030] The beneficial effects of the yarn twist testing method are the same as those of the above-mentioned yarn twist testing device, which will not be described in detail here.

[0031] The beneficial effects of the present invention are as follows: the yarn twist testing device of the present invention can quickly test the twist of three sections of yarn only by installing the yarn once, which is not only convenient to operate and improves the test efficiency, but also takes the average value of three tests to improve the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the yarn twist testing device of the present invention.

[0033] Figure 2 It is a structural schematic diagram of the rotating mechanism and counting mechanism of the yarn twist testing device of the present invention.

[0034] Figure 3 It is a partial structural schematic diagram of the yarn twist testing device of the present invention.

[0035] Figure 4 It is a cross-sectional view of the yarn twist testing device of the present invention.

[0036] Figure 5 It is a schematic structural diagram of a rotating assembly of a yarn twist testing device of the present invention.

[0037] Figure 6 It is a cross-sectional view of the wire clamping structure on the rotating wheel of the yarn twist testing device of the present invention.

[0038] Figure 7 It is a cross-sectional view of the wire clamping structure on the fixing plate of the yarn twist testing device of the present invention.

[0039] Figure 8 It is a structural schematic diagram of a movable rod and a stopper of a yarn twist testing device of the present invention.

[0040] Fig. 9 The invention discloses a schematic diagram of assembling a cutter assembly and a fixing plate of a yarn twist testing device.

[0041] Reference numerals:

[0042] 1. Base; 11. Support; 12. Fixing rod; 13. Connecting rod 1; 2. Gear 1; 21. Handle; 3. Mounting rod; 31. Dial; 32. Worm; 33. Gear ring; 34. Torsion spring; 35. Lever; 4. Fixing plate; 5. Mounting plate; 51. Rotating wheel; 6. Transmission shaft; 61. Transmission wheel; 62. Gear 2; 63. Raised strip; 7. Limiting plate; 71. Limiting rod; 71 1. Stop edge; 72. Limiting groove; 73. Sliding groove; 74. Connecting rod 2; 75. Mounting block; 76. Stop block; 8. Mounting shell; 81. Wire clamping plate; 82. Connecting rod 3; 83. Sliding rod; 84. Connecting rod 4; 85. Articulated rod; 86. Avoiding groove; 87. Positioning rod; 9. Pressing rod; 91. Connecting rod; 92. Movable rod; 10. Vertical rod; 101. Blade; 102. Cutting table. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0044] like Figures 1 to 9 As shown, the yarn twist tester of the present invention comprises a base 1 and a rotating mechanism arranged on the base 1, a counting mechanism is arranged on the rotating mechanism, the rotating mechanism comprises a support 11 fixedly connected to the base 1 and a gear 2 rotatably connected to the support 11, and the gear 2 is connected to a handle 21. The counting mechanism comprises a mounting rod 3, a worm 32 and a dial 31 rotatably connected to the mounting rod 3, the gear 2 is rotatably connected to the support 11 through the worm 32, a gear ring 33 adapted to the worm 32 is arranged on the outer periphery of the dial 31, a scale and a pointer are arranged on the dial 31, the mounting rod 3 is rotatably connected to the support 11, and a torsion spring 34 is arranged at the rotatable connection, the torsion spring 34 drives the gear ring 33 on the dial 31 to abut against the worm 32, so that the gear ring 33 and the worm 32 are in a meshing state. When the gear 2 is rotated by the handle 21, the gear 2 drives the worm 32 to rotate synchronously, and the worm 32 drives the ring gear 33 and the dial 31 to rotate, so that the number of rotations of the gear 2 is reflected on the dial 31, which is convenient for reading.

[0045] A lever 35 is fixedly connected to the mounting rod 3. When the dial 31 needs to be reset to zero, the mounting rod 3 is driven to rotate by pressing the lever 35, so that the mounting rod 3 drives the dial 31 and the ring gear 33 to disengage from the worm 32. The dial 31 is manually rotated to align the pointer with the zero scale on the dial 31 to reset the dial 31 to zero. After resetting, the lever 35 is released, and the mounting rod 3 drives the ring gear 33 on the dial 31 to mesh with the worm 32 again under the elastic force of the torsion spring 34.

[0046] The extension direction of the rotation axis of the gear 1 2 is defined as the left-right direction. Three clamping groups are sequentially arranged on the base 1 along the left-right direction. A cutter assembly is arranged between adjacent clamping groups. The clamping group includes a fixed assembly and a rotating assembly. The fixed assembly includes a fixed plate 4 fixedly connected to the base 1 and a clamping structure arranged on the fixed plate 4. The rotating assembly includes a mounting plate 5 fixedly connected to the base 1, a rotating wheel 51 rotatably connected to the mounting plate 5, and a clamping structure arranged on the rotating wheel 51.

[0047] A transmission assembly is provided between the rotating mechanism and the rotating wheel 51, and the transmission assembly includes a transmission shaft 6 and a transmission wheel 61. The transmission shaft 6 is fixedly connected with a gear 2 62 meshing with the gear 1 2. The transmission shaft 6 is provided with a convex strip 63 extending along its axial direction. The transmission wheel 61 is sleeved on the transmission shaft 6 and the convex strip 63, and slides with the transmission shaft 6 in the left and right directions. A limiting structure for limiting the relative position relationship between the transmission wheel 61 and the transmission shaft 6 is provided on the base 1. When the gear 1 2 rotates, it drives the gear 2 62 and the transmission shaft 6 to rotate, the transmission shaft 6 drives the transmission wheel 61 to rotate, and the transmission wheel 61 drives the rotating wheel 51 in contact with it to rotate.

[0048] After the yarn is clamped on the three clamping groups by the clamping structure, the yarn between two adjacent clamping groups is cut by the cutter assembly, so that the yarns clamped by each clamping group do not interfere with each other. By sliding the transmission wheel 61 along the transmission shaft 6, the transmission wheel 61 is contacted with the rotating wheels 51 of the three clamping groups in sequence, and the twist of the yarn clamped by the three clamping groups is tested in sequence, and finally the average value is taken to obtain a more accurate twist. The yarn twist tester of the present invention only needs to install the yarn once, and can quickly test the twist of three sections of yarn. It is not only easy to operate and improve the test efficiency, but also takes the average value of three tests to improve the test accuracy.

[0049] like Figure 1 , Figure 3 and Figure 4As shown, the base 1 is symmetrically provided with a fixing rod 12, and a connecting rod 13 is hinged between the transmission shaft 6 and the fixing rod 12. The limiting structure includes a limiting plate 7 and a limiting rod 71. The limiting plate 7 is fixedly connected to the base 1. A guide groove is provided on the limiting plate 7. The guide groove includes a limiting groove 72 corresponding to the position of each rotating wheel 51 and a sliding groove 73 connected to each limiting groove 72. The sliding groove 73 is located above the limiting groove 72. A connecting rod 2 74 is hinged between the limiting rod 71 and the transmission wheel 61. The limiting rod 71 is inserted into the guide groove, and the limiting rod 71 has a stop edge 711 extending from both sides of the limiting plate 7. When the limiting rod 71 is located in the limiting groove 72, the transmission wheel 61 contacts the corresponding rotating wheel 51. When the limiting rod 71 moves upward along the limiting groove 72, the connecting rod 2 74 drives the transmission wheel 61 and the transmission shaft 6 to make an arc motion with the connecting rod 1 13 as the radius, so that the transmission wheel 61 is out of contact with the currently meshed rotating wheel 51, and in the process of making the arc motion, the gear 2 62 on the transmission shaft 6 rotates along the outer periphery of the gear 1 2. When the limiting rod 71 moves along the sliding groove 73, the transmission wheel 61 is in a state of being out of contact with the rotating wheel 51, and the limiting rod 71 drives the transmission wheel 61 to move along the transmission shaft 6 through the connecting rod 2 74. When the limiting rod 71 is aligned with the next limiting groove 72, the limiting rod 71 is placed in the limiting groove 72, and the transmission wheel 61 contacts the rotating wheel 51 corresponding to the limiting groove 72.

[0050] like Figures 4 to 7 As shown, the wire clamping structure includes a mounting shell 8 and a wire clamping plate 81, the wire clamping plate 81 is slidably matched with the mounting shell 8 in the vertical direction, and the top of the wire clamping plate 81 is hinged with two connecting rods 3 82, the mounting shell 8 is vertically slidably connected with a sliding rod 83, and the sliding rod 83 is hinged with two connecting rods 4 84, the two connecting rods 4 84 are respectively hinged with the corresponding connecting rod 3 82 through a hinge rod 85, a sliding groove is opened in the mounting shell 8 in the horizontal direction, the hinge rod 85 is slidably matched with the sliding groove in the horizontal direction, a spring is connected between the top of the wire clamping plate 81 and the mounting shell 8, and the spring presses the wire clamping plate 81 against the bottom of the mounting shell 8.

[0051] The mounting shell 8 of the clamping structure on the fixed plate 4 is fixedly connected to the top of the fixed plate 4, and the mounting shell 8 of the clamping structure on the rotating wheel 51 is fixedly connected to one side of the rotating wheel 51. The mounting shell 8, the rotating wheel 51 and the mounting plate 5 are respectively provided with an escape groove 86 for the yarn to be placed. A positioning rod 87 is fixedly connected in the mounting shell 8, and the side of the positioning rod 87 facing the opening of the escape groove 86 is located in the same vertical plane as the central axis of the rotating wheel 51.

[0052] like Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, a pressing mechanism is provided on the base 1. When the pressing mechanism presses the slide bar 83 downward, the two hinged rods 85 move away from each other, driving the clamping plate 81 to lift upward. The pressing mechanism includes a pressing rod 9 and a connecting rod 91. The pressing rod 9 is located above the slide bar 83 of each clamping structure. The connecting rod 91 connects all the pressing rods 9. The connecting rod 91 is fixedly connected to a movable rod 92 that penetrates the limit plate 7. The movable rod 92 is slidably connected to the limit plate 7 along the vertical direction.

[0053] When the movable rod 92 is pressed downward, the movable rod 92 drives the connecting rod 91 and the pressing rod 9 to move downward synchronously, the pressing rod 9 presses the sliding rod 83 to move downward, the sliding rod 83 pushes the connecting rod four 84 to drive the two hinged rods 85 to move away from each other, and the two hinged rods 85 drive the two connecting rods three 82 to expand to both sides, so that the clamping plate 81 connected to the connecting rod three 82 moves upward to provide space for inserting the yarn.

[0054] When the movable rod 92 is lifted upward, the movable rod 92 drives the connecting rod 91 and the pressing rod 9 to move upward synchronously. After the slide bar 83 loses the pressure of the pressing rod 9, the spring between the clamping plate 81 and the mounting shell 8 pushes the clamping plate 81 to move downward to clamp the yarn. When the clamping plate 81 moves downward, the two hinged rods 85 and the connecting rod four 84 are driven to move toward each other through the connecting rod three 82, and the connecting rod four 84 pushes the slide bar 83 upward to reset.

[0055] like Figure 1 and Figure 8 As shown, a mounting block 75 extends from the limit plate 7, a stopper 76 is inserted into the mounting block 75, a spring is connected between the stopper 76 and the mounting block 75, and the stopper 76 is provided with a slope 1 and a slope 2. When the movable rod 92 moves downward to contact the slope 1, the slope 1 is squeezed to drive the stopper 76 to move into the mounting block 75, providing a way out for the movement of the movable rod 92. When the movable rod 92 passes over the stopper 76, the stopper 76 pops outward under the elastic force of the spring, forming a stopper above the movable rod 92. After releasing the pressure on the movable rod 92, the movable rod 92 cannot move upward under the stopper 76, so that the pressing rod 9 continues to press the sliding rod 83, which is convenient for the operator to free his hands to place the yarn.

[0056] After placing the yarn, lift the movable rod 92 upward. When the movable rod 92 contacts the second inclined plane, the second inclined plane is squeezed to drive the stopper 76 to move into the mounting block 75, providing a clearance for the movement of the movable rod 92. When the movable rod 92 passes over the stopper 76, the stopper 76 pops outward under the elastic force of the spring, forming a support under the movable rod 92, and the pressing rod 9 is out of contact with the sliding rod 83.

[0057] like Figure 3 and Fig. 9As shown, the cutter assembly includes a vertical rod 10, a blade 101 fixedly connected to the bottom of the vertical rod 10, and a cutting table 102 located below the blade 101. The cutting table 102 is fixedly connected to the adjacent fixed plate 4, and a cutting groove corresponding to the position of the blade 101 is provided at the bottom of the cutting table 102. The vertical rod 10 is elastically connected to the mounting shell 8 on the adjacent fixed plate 4 in the vertical direction. When the vertical rod 10 is pressed downward, the vertical rod 10 drives the blade 101 to cut the yarn.

[0058] The present invention also provides a yarn twist testing method, which uses the yarn twist testing device in the above embodiment, and comprises the following steps:

[0059] S1, press the movable rod 92 downward until the movable rod 92 is located below the stop block 76, and the pressing rod 9 connected to the movable rod 92 squeezes the sliding rod 83, and the sliding rod 83 drives the clamping plate 81 to move upward to a preset position through the cooperation of the connecting rod four 84 and the connecting rod three 82, and puts the yarn along the avoidance groove 86 between the clamping plates 81 of multiple clamping groups and the bottom of the mounting shell 8, and then lifts the movable rod 92 upward until the movable rod 92 is located above the stop block 76. After the sliding rod 83 loses the pressure of the pressing rod 9, the spring between the clamping plate 81 and the mounting shell 8 pushes the clamping plate 81 downward to clamp the yarn, and then presses the vertical rod 10 downward, and the vertical rod 10 drives the blade 101 to cut the yarn, so that the yarn between the two adjacent clamping groups is disconnected;

[0060] S2, the limiting rod 71 is moved along the sliding groove 73, and the limiting rod 71 drives the transmission wheel 61 to move along the transmission shaft 6. When the limiting rod 71 moves into the limiting groove 72, the transmission wheel 61 contacts the rotating wheel 51 corresponding to the limiting groove 72;

[0061] S3, turning the handle 21 drives the gear 1 2 to rotate, the gear 1 2 drives the transmission shaft 6 to rotate through the gear 2 62, the transmission shaft 6 drives the rotating wheel 51 to rotate through the transmission wheel 61, the rotating wheel 51 drives the yarn to rotate and untwist through the thread clamping structure, and the counting mechanism counts the number of rotations of the rotating mechanism;

[0062] S4, after testing the twist of the yarn clamped by a thread clamping group, resetting the counting mechanism to zero;

[0063] S5, the limiting rod 71 is moved upward from the current limiting groove 72, and the limiting rod 71 drives the transmission wheel 61 to break away from the contact with the rotating wheel 51 through the second connecting rod 74, and the limiting rod 71 is moved along the sliding groove 73, and the limiting rod 71 drives the transmission wheel 61 to move along the transmission shaft 6, until the limiting rod 71 moves to the next limiting groove 72, the transmission wheel 61 contacts the rotating wheel 51 of another clamping group;

[0064] S6. Repeat the above steps S3 to S5 until the twist of the yarns clamped by all the thread clamping groups is tested, and then calculate the average twist of the tested yarns.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A yarn twist testing device, comprising a base and a rotating mechanism disposed on the base, wherein a counting mechanism is disposed on the rotating mechanism, and the extending direction of the rotation axis of the rotating mechanism is defined as a left-right direction, characterized in that: A plurality of wire clamping groups are sequentially arranged on the base along the left and right directions, a cutter assembly is arranged between adjacent wire clamping groups, the wire clamping group comprises a fixed assembly and a rotating assembly, the fixed assembly comprises a fixed plate fixedly connected to the base and a wire clamping structure arranged on the fixed plate, the rotating assembly comprises a mounting plate fixedly connected to the base, a rotating wheel rotatably connected to the mounting plate and a wire clamping structure arranged on the rotating wheel; A transmission assembly is arranged between the rotating mechanism and the rotating wheel, and the transmission assembly includes a transmission shaft and a transmission wheel. The transmission shaft is in transmission cooperation with the rotating mechanism, and the transmission wheel is in sliding cooperation with the transmission shaft in the left and right directions. A limiting structure for limiting the relative position relationship between the transmission wheel and the transmission shaft is arranged on the base. When the rotating mechanism rotates, the transmission shaft drives the transmission wheel to rotate, and the transmission wheel drives the rotating wheel in contact with it to rotate; The rotating mechanism includes a support fixedly connected to the base and a gear 1 rotatably connected to the support, the gear 1 is connected to a handle, and a gear 2 meshing with the gear 1 is fixedly connected to the transmission shaft, and when the gear 1 rotates, the gear 2 and the transmission shaft are driven to rotate; The limiting structure includes a limiting plate and a limiting rod. The limiting plate is fixedly connected to the base. A guide groove is provided on the limiting plate. The guide groove includes a limiting groove corresponding to the position of each rotating wheel and a sliding groove connecting each limiting groove. The sliding groove is located above the limiting groove. A connecting rod 2 is hinged between the limiting rod and the transmission wheel. The limiting rod is passed through the guide groove. A fixing rod is symmetrically arranged on the base, a connecting rod is hinged between the transmission shaft and the fixing rod, and a stop edge is extended on both sides of the limiting plate of the limiting rod. When the limiting rod is located in the limiting groove, the transmission wheel contacts the corresponding rotating wheel, and when the limiting rod is located in the sliding groove, the transmission wheel is disengaged from the rotating wheel.

2. The yarn twist testing device according to claim 1, characterized in that: The wire clamping structure includes a mounting shell and a wire clamping plate. The wire clamping plate slides with the mounting shell in the vertical direction, and two connecting rods three are hinged on the top of the wire clamping plate. A sliding rod is vertically slidably connected to the mounting shell, and two connecting rods four are hinged on the sliding rod. The two connecting rods four are hinged to the corresponding connecting rods three through hinged rods respectively, and the hinged rods slide with the mounting shell in the horizontal direction. A spring is connected between the top of the wire clamping plate and the mounting shell. The spring presses the wire clamping plate against the bottom of the mounting shell. A pressing mechanism is provided on the base. When the pressing mechanism presses the sliding rod downward, the two hinged rods move away from each other, driving the wire clamping plate to lift upward.

3. The yarn twist testing device according to claim 2, characterized in that: The pressing mechanism includes a pressing rod and a connecting rod. The pressing rod is located above the sliding rod of each wire clamping structure. The connecting rod connects all the pressing rods. The connecting rod is fixedly connected with a movable rod that penetrates the limiting plate. The movable rod is vertically slidably connected to the limiting plate. A stopper is elastically connected to the limiting plate. When the movable rod is below the stopper, the pressing rod presses the sliding rod to lift the wire clamping plate upward. When the movable rod is above the stopper, the pressing rod is out of contact with the sliding rod.

4. The yarn twist testing device according to claim 3, characterized in that: A mounting block extends from the limit plate, the stopper is inserted into the mounting block, and a spring is connected between the stopper and the mounting block. The stopper is provided with inclined surface one and inclined surface two. When the movable rod moves downward and contacts inclined surface one, inclined surface one is squeezed to drive the stopper to move into the mounting block. When the movable rod moves upward and contacts inclined surface two, inclined surface two is squeezed to drive the stopper to move into the mounting block.

5. The yarn twist testing device according to claim 2, characterized in that: A positioning rod is fixedly connected in the installation shell, and avoidance grooves for yarn to be placed are respectively opened on the installation shell, the rotating wheel and the installation plate. The side of the positioning rod facing the opening of the avoidance groove is located in the same vertical plane as the central axis of the rotating wheel.

6. The yarn twist testing device according to claim 2, characterized in that: The cutter assembly includes a vertical rod, a blade fixedly connected to the bottom of the vertical rod and a cutting table located below the blade. The cutting table is fixedly connected to an adjacent fixed plate. The vertical rod is elastically connected to a mounting shell on an adjacent fixed plate in the vertical direction. When the vertical rod is pressed downward, the vertical rod drives the blade to cut the yarn.

7. The yarn twist testing device according to claim 1, characterized in that: The counting mechanism includes a mounting rod, a worm and a dial rotatably connected to the mounting rod. Gear 1 is rotatably connected to the support through the worm. A gear ring matching the worm is arranged on the outer periphery of the dial. A scale and a pointer are arranged on the dial. The mounting rod is rotatably connected to the support, and a torsion spring is arranged at the rotating connection. The torsion spring drives the gear ring on the dial to press against the worm.

8. A method for testing yarn twist, characterized in that: The yarn twist testing method uses the yarn twist testing device described in any one of claims 1 to 7, and the yarn twist testing method comprises the following steps: S1, placing the yarn into the clamping structure of multiple clamping groups, controlling the cutter assembly to cut the yarn, so that the yarn between two adjacent clamping groups is disconnected; S2, adjusting the transmission wheel along the transmission shaft so that the transmission wheel contacts the rotating wheel of one of the clamping groups; S3, rotating the rotating mechanism, so that the rotating mechanism drives the transmission shaft to rotate, the transmission shaft drives the rotating wheel to rotate through the transmission wheel, the rotating wheel drives the yarn to rotate and untwist through the clamping structure, and the counting mechanism counts the number of rotations of the rotating mechanism; S4, after testing the twist of the yarn clamped by a thread clamping group, resetting the counting mechanism to zero; S5, adjusting the transmission wheel along the transmission shaft so that the transmission wheel contacts the rotating wheel of another clamping group; S6. Repeat the above steps S3 to S5 until the twist of the yarns clamped by all the thread clamping groups is tested, and then calculate the average twist of the tested yarns.

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