Yarn drafting device

Abstract

The utility model relates to the technical field of textile equipment, and discloses a yarn drafting device which comprises a bottom plate, a drafting machine body and a support, the drafting machine body and the support are installed on the bottom plate, two installation rods are installed on one side of the support, a pay-off wheel is arranged between the two installation rods, and a limiting structure for fixing the pay-off wheel is further arranged on the support. The limiting structure comprises first screw rods in threaded connection to the two sides of the top of the support, limiting covers are hinged to one ends of the two first screw rods correspondingly, hand wheels are installed at the other ends of the two first screw rods correspondingly, and openings allowing shaft parts at the two ends of the pay-off wheel to move are formed in the two installation rods correspondingly; shaft grooves allowing the shaft parts to be inserted therein are formed in the sides, adjacent to the mounting rod, of the two limiting covers correspondingly. Through the arrangement of the limiting structure, the pay-off wheel can be quickly disassembled and assembled, so that the pay-off wheel on the drafting device can be conveniently and quickly replaced, the replacement efficiency of the pay-off wheel can be greatly improved, and the efficient drafting of yarns is further realized.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and in particular to a yarn threading device. Background Technology

[0002] In the textile production process, the process usually involves winding, warping, sizing, threading, weaving, and finishing. During warping, a threading machine is generally used to thread the yarn into the heddles and reeds in a certain order to facilitate textile production.

[0003] A search revealed a patent with authorization announcement number CN218561769U, which discloses a high-efficiency heddle threading device. This device uses two warp beams mounted on a warp beam mounting frame. The warp beam closest to the heddle machine body supplies yarn to the machine. After the yarn supply to the warp beam is used up, the shaft is rotated 180 degrees to move the other warp beam closer to the machine body, allowing for quick heddle threading. After entering the heddle, the empty warp beam is removed and the other warp beam is installed. This process does not affect the operation of the heddle machine, reduces the time spent changing warp beams, and improves heddle threading efficiency. However, the above device cannot achieve quick disassembly and assembly of warp beams when changing them, making warp beam replacement inconvenient and resulting in low warp beam replacement efficiency, which is detrimental to efficient yarn threading. Utility Model Content

[0004] This invention proposes a yarn threading device to solve the problem that existing devices cannot achieve quick assembly and disassembly of the warp beam, which is not conducive to efficient yarn threading.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a yarn threading device, comprising a base plate, a threading machine body and a bracket mounted on the base plate, wherein two mounting rods are mounted on one side of the bracket and a feed wheel is provided between the two mounting rods, and a limiting structure for fixing the feed wheel is also provided on the bracket;

[0006] The limiting structure includes first screws screwed to both sides of the top of the bracket. One end of each of the two first screws is hinged to a limiting cover, and the other end is equipped with a handwheel. Both of the mounting rods have openings for the shafts at both ends of the wire feeding wheel to move. Both of the limiting covers have shaft grooves on the side adjacent to the mounting rods for the shafts to be inserted.

[0007] Preferably, guide strips are installed on the opposite sides of the two mounting rods, and guide grooves for the guide strips to slide are also provided on the side of the two limiting covers adjacent to the mounting rods, which can limit the limiting covers to ensure stable movement of the limiting covers.

[0008] Preferably, a tensioning structure is provided on one side of the bracket, and the tensioning structure includes a tensioning platform that can be raised and lowered along one side of the bracket. A mounting frame is installed on the top of the tensioning platform, and a rotatable tensioning wheel is installed on the mounting frame.

[0009] Preferably, the tensioning structure further includes a lifting adjustment component that drives the tensioning table to rise and fall. The lifting adjustment component includes a connecting cylinder installed at the bottom of the tensioning table and a fixed seat fixed to the top of the base plate. A rotating cylinder is rotatably installed on the fixed seat, and a threaded column is installed at the top of the rotating cylinder. A threaded cavity for the threaded column to be screwed into is opened inside the connecting cylinder. A rotating rod is also rotatably installed on the top of the base plate, and a main gear is provided on the rotating rod. A secondary gear that meshes with the main gear is installed on the rotating cylinder.

[0010] Preferably, the base plate is further provided with a locking component for locking and limiting the rotating rod, and the locking component includes a support block fixed to the top of the base plate, a second screw is screwed onto the support block, and a locking block for engaging the main gear is rotatably installed at one end of the second screw.

[0011] Preferably, one end of the locking block is bent into an arc, and the arc is equipped with a protruding tooth that meshes with the main gear, so as to lock and limit the main gear and prevent the main gear from rotating.

[0012] Preferably, a slider is installed on one side of the tensioning table, and a guide rail is fixed on one side of the bracket. The slider and the guide rail are slidably connected, which can limit the tensioning table and facilitate the stable lifting and lowering of the tensioning table.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] (1) By setting the limiting structure, the quick disassembly and assembly of the feeding wheel can be realized, which facilitates the quick replacement of the feeding wheel on the threading device and greatly improves the replacement efficiency of the feeding wheel. This solves the problem that the existing device cannot realize the quick disassembly and assembly of the warp beam, which is not conducive to the efficient threading of the yarn, and realizes the efficient threading of the yarn.

[0015] (2) By setting the tensioning structure, the height of the tensioning wheel can be adjusted, thereby effectively tensioning the yarn, ensuring stable yarn threading, and further achieving efficient yarn threading.

[0016] Furthermore, by utilizing the locking mechanism, the main gear can be locked to prevent it from driving the secondary gear to rotate, thereby achieving stability after the tension wheel height is adjusted, and further achieving stable tension of the yarn. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the structure after adjustment of the middle limit structure;

[0020] Figure 3 This is a top view of the tensioning structure and the bracket of this utility model when they are connected;

[0021] Figure 4 This is a cross-sectional view of the lifting adjustment component of this utility model;

[0022] Figure 5 This utility model Figure 4 A schematic diagram of the structure after the lifting adjustment component has been adjusted.

[0023] Figure 6 This is a top view of the locking block of this utility model when locked with the main gear;

[0024] Figure 7 This is a schematic diagram of the structure of the limiting cover of this utility model;

[0025] In the diagram: 1. Base plate; 2. Heddle threading machine body; 3. Support frame; 4. Wire feeding reel; 5. Mounting rod; 6. Limiting structure; 7. Tensioning structure; 8. Lifting adjustment component; 9. Locking component;

[0026] 61. First screw; 62. Limiting cover; 63. Handwheel; 64. Shaft groove; 65. Guide groove;

[0027] 71. Tensioning table; 72. Tensioning wheel; 73. Mounting bracket; 74. Slider; 75. Guide rail;

[0028] 81. Main gear; 82. Rotating rod; 83. Secondary gear; 84. Connecting cylinder; 85. Rotating cylinder; 86. Threaded column; 87. Fixed seat; 88. Threaded cavity;

[0029] 91. Support block; 92. Locking block; 93. Second screw. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides, for example Figure 1-Figure 3 as well as Figure 7 The yarn threading device shown includes a base plate 1, a threading machine body 2 and a bracket 3 mounted on the base plate 1. Two mounting rods 5 are mounted on one side of the bracket 3, and a feed wheel 4 is provided between the two mounting rods 5. The bracket 3 is also provided with a limiting structure 6 for fixing the feed wheel 4.

[0032] The limiting structure 6 includes first screws 61 screwed to both sides of the top of the bracket 3. One end of each of the two first screws 61 is hinged to a limiting cover 62, and the other end is equipped with a handwheel 63. Both mounting rods 5 have openings for the shafts at both ends of the wire feeding wheel 4 to move. Both limiting covers 62 have shaft grooves 64 for the shafts to be inserted on the side adjacent to the mounting rods 5. Specifically, one end of the first screw 61 is rotatably connected to a protruding rod, and the limiting cover 62 is hinged to the protruding rod.

[0033] When threading the yarn through the heddles, the yarn feeder 4, with the yarn wound on it, can be inserted between the two mounting rods 5 through the opening, and the limiting cover 62 can be rotated upwards to a horizontal position (e.g., Figure 1 (As shown), then the first screw 61 is rotated by the handwheel 63, so that the first screw 61 drives the limiting cover 62 to move until the shafts at both ends of the pay-off wheel 4 are engaged in the shaft grooves 64 on the limiting cover 62 to limit and fix the pay-off wheel 4. Then, one end of the yarn is threaded into the feed wheel on the heddling machine body 2, and the yarn is heddled by the heddling machine body 2.

[0034] When the yarn on the pay-off reel 4 is finished, the first screw 61 can be rotated in the reverse direction using the handwheel 63, causing the first screw 61 to move the limiting cover 62 until the shafts at both ends of the pay-off reel 4 are moved out of the shaft grooves 64. Then, the limiting cover 62 is rotated downwards (as shown in the image). Figure 2 (As shown), then pull the pay-off wheel 4 to disassemble it from between the two mounting rods 5, and then reconnect the pay-off wheel 4 with the yarn wound on it between the two mounting rods 5. Then, rotate the first screw 61 by the handwheel 63, and repeat the above steps to achieve quick disassembly and assembly of the pay-off wheel 4, which is beneficial to the efficient threading of the yarn.

[0035] Furthermore, in order to ensure the stable movement of the limiting cover 62, such as Figure 1 , Figure 2 and Figure 7 As shown, guide strips are installed on the opposite sides of the two mounting rods 5, and guide grooves 65 for the guide strips to slide are also provided on the side of the two limit covers 62 adjacent to the mounting rods 5.

[0036] In another embodiment, such as Figure 1 , Figure 2 as well as Figures 4-6 As shown, a tensioning structure 7 is also provided on one side of the bracket 3, and the tensioning structure 7 includes a tensioning platform 71 that can be raised and lowered along one side of the bracket 3. A mounting frame 73 is installed on the top of the tensioning platform 71, and a rotatable tensioning wheel 72 is installed on the mounting frame 73.

[0037] Specifically, in order to realize the lifting and lowering of the tensioning table 71, the tensioning structure 7 also includes a lifting adjustment component 8 that drives the tensioning table 71 to lift and lower. The lifting adjustment component 8 includes a connecting cylinder 84 installed at the bottom of the tensioning table 71 and a fixed seat 87 fixed to the top of the base plate 1. A rotating cylinder 85 is rotatably installed on the fixed seat 87, and a threaded post 86 is installed at the top of the rotating cylinder 85. A threaded cavity 88 is opened inside the connecting cylinder 84 for the threaded post 86 to be screwed in. A rotating rod 82 is also rotatably installed on the top of the base plate 1, and a main gear 81 is provided on the rotating rod 82. A secondary gear 83 that meshes with the main gear 81 is installed on the rotating cylinder 85.

[0038] When threading the yarn through the heddles, the rotating rod 82 can be rotated to drive the main gear 81 to rotate. Then, the main gear 81 drives the rotating cylinder 85 to rotate through the meshing secondary gear 83, so that the threaded column 86 is screwed out from the threaded cavity 88. At this time, the connecting cylinder 84 pushes the tensioning table 71 upward, so that the tensioning table 71 drives the tensioning wheel 72 to rise to a suitable position. Then, the yarn is passed through the bottom of the tensioning wheel 72 to tension the yarn through the tensioning wheel 72.

[0039] Furthermore, when the yarn needs to be tensioned, the rotating rod 82 can be rotated in the opposite direction, so that the rotating cylinder 85 can be rotated in the opposite direction through the cooperation of the main gear 81 and the auxiliary gear 83. Then, the rotating cylinder 85 drives the threaded column 86 to rotate in the opposite direction, so that the threaded column 86 is screwed into the threaded cavity 88, and the tensioning table 71 is pulled down through the connecting cylinder 84, so that the tensioning wheel 72 is lowered to a suitable position, thereby realizing the height adjustment of the tensioning wheel 72, so as to effectively tension the yarn and ensure the stable threading of the yarn.

[0040] Furthermore, such as Figure 1 , Figure 2 and Figure 6As shown, the base plate 1 is also provided with a locking component 9 to lock and limit the rotating rod 82. The locking component 9 includes a support block 91 fixed to the top of the base plate 1. A second screw 93 is screwed onto the support block 91. A locking block 92 that engages with the main gear 81 is rotatably installed at one end of the second screw 93. One end of the locking block 92 is bent into an arc, and a convex tooth that meshes with the main gear 81 is installed on the arc.

[0041] After adjusting the height of the tensioning wheel 72 using the lifting adjustment component 8, the second screw 93 can be rotated, causing the second screw 93 to move under the action of the support block 91, and driving the locking block 92 to move. The locking block 92 engages with the main gear 81 through the protruding teeth on its arc portion, locking the main gear 81 and preventing the main gear 81 from driving the auxiliary gear 83 to rotate. This achieves stability after the height of the tensioning wheel 72 is adjusted, which is beneficial for the stable tensioning of the yarn.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, a slider 74 is installed on one side of the tensioning table 71, and a guide rail 75 is fixed on one side of the bracket 3. The slider 74 and the guide rail 75 are slidably connected. Based on this, the tensioning table 71 can be limited to ensure the stable lifting and lowering of the tensioning table 71, thereby facilitating the height adjustment of the tensioning wheel 72.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A yarn threading device, comprising a base plate (1), a threading machine body (2) and a bracket (3) mounted on the base plate (1), wherein two mounting rods (5) are mounted on one side of the bracket (3), and a feed wheel (4) is provided between the two mounting rods (5), characterized in that: The bracket (3) is also provided with a limiting structure (6) for fixing the wire feeding wheel (4); The limiting structure (6) includes first screws (61) screwed to both sides of the top of the bracket (3). One end of each of the two first screws (61) is hinged to a limiting cover (62), and the other end is equipped with a handwheel (63). Both of the two mounting rods (5) have openings for the shafts at both ends of the wire feeding wheel (4) to move. Both of the two limiting covers (62) have shaft grooves (64) on the side adjacent to the mounting rods (5) for the shafts to be inserted.

2. The yarn threading device according to claim 1, characterized in that: Guide strips are installed on the opposite sides of the two mounting rods (5), and guide grooves (65) for sliding of the guide strips are also provided on the side of the two limiting covers (62) adjacent to the mounting rods (5).

3. The yarn threading device according to claim 1, characterized in that: A tensioning structure (7) is also provided on one side of the bracket (3), and the tensioning structure (7) includes a tensioning platform (71) that can be raised and lowered along one side of the bracket (3). A mounting frame (73) is installed on the top of the tensioning platform (71), and a rotatable tensioning wheel (72) is installed on the mounting frame (73).

4. A yarn threading device according to claim 3, characterized in that: The tensioning structure (7) also includes a lifting adjustment component (8) that drives the tensioning table (71) to rise and fall. The lifting adjustment component (8) includes a connecting cylinder (84) installed at the bottom of the tensioning table (71) and a fixed seat (87) fixed at the top of the base plate (1). A rotating cylinder (85) is rotatably installed on the fixed seat (87), and a threaded column (86) is installed at the top of the rotating cylinder (85). A threaded cavity (88) for the threaded column (86) to be screwed into is opened inside the connecting cylinder (84). A rotating rod (82) is also rotatably installed at the top of the base plate (1), and a main gear (81) is provided on the rotating rod (82). A secondary gear (83) that meshes with the main gear (81) is installed on the rotating cylinder (85).

5. A yarn threading device according to claim 4, characterized in that: The base plate (1) is also provided with a locking component (9) for locking and limiting the rotating rod (82), and the locking component (9) includes a support block (91) fixed on the top of the base plate (1). A second screw (93) is screwed onto the support block (91), and a locking block (92) for engaging the main gear (81) is rotatably installed at one end of the second screw (93).

6. A yarn threading device according to claim 5, characterized in that: One end of the locking block (92) is bent into an arc, and a convex tooth that meshes with the main gear (81) is installed on the arc.

7. A yarn threading device according to claim 3, characterized in that: A slider (74) is installed on one side of the tensioning table (71), and a guide rail (75) is fixed on one side of the bracket (3). The slider (74) and the guide rail (75) are slidably connected.

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