A yarn collecting and laying device for a pre-dip machine

Abstract

The utility model relates to a textile field especially relates to a set silk yarn arranging device for pre -impregnation machine equipment, including bearing structure, the bearing structure is installed with adjusting structure, adjusting structure includes mounting panel no.

Description

Technical Field

[0001] This utility model belongs to the textile field, specifically relating to a yarn collecting and distributing device for a prepreg machine. Background Technology

[0002] In recent years, carbon fiber composite materials have seen rapid market demand due to their unique properties such as high strength, low density, corrosion resistance, and aging resistance. With the widespread application of carbon fiber prepregs in the military and aerospace fields, more stringent requirements have been placed on the performance and production process of carbon fiber prepregs.

[0003] Traditional fiber collecting and arranging devices often struggle to precisely control the path of each fiber during fiber processing. Due to the significant inter-fiber influence, problems such as entanglement and crossing can easily occur, leading to uneven fiber arrangement and affecting the uniformity and quality stability of the prepreg. For example, in existing devices, fibers may shift position during the carding process due to a lack of effective positioning and guidance, resulting in inconsistent tension among the fibers and consequently causing deviations in the thickness and strength of the prepreg. Utility Model Content

[0004] To overcome the problem that it is difficult to accurately control the path of each fiber during the use of prepreg equipment, thus affecting fiber processing, a yarn collecting and arranging device for prepreg equipment is proposed.

[0005] The technical solution of this utility model is as follows: a yarn collecting and distributing device for a prepreg machine, comprising a bearing structure, an adjusting structure mounted on the bearing structure, the adjusting structure comprising a mounting plate, a supporting structure and a yarn distributing structure mounted on the adjusting structure, the supporting structure comprising a movable sleeve, the yarn distributing structure comprising a sliding column, a mounting plate two symmetrically mounted on the left end of the mounting plate one, movable sleeves one and two symmetrically mounted on the outer wall of the opposite end of the mounting plate two, movable sleeves one and two corresponding to each other, movable sleeves one and two symmetrically mounted on the left end of the movable sleeves one and two respectively, rotating seats one and two symmetrically mounted on the left end of the movable sleeves one and two respectively, a support roller one rotatably mounted on the opposite end of the rotating seats one, a support roller two rotatably mounted on the opposite end of the rotating seats two, and a sliding groove symmetrically mounted on the left and right ends of the mounting plate one, sliding columns symmetrically distributed vertically and horizontally mounted in the sliding groove, a yarn distributing plate fixedly mounted on the left end of the sliding columns, and several yarn distributing teeth equidistantly distributed on the upper end of the yarn distributing plate.

[0006] Furthermore, the load-bearing structure includes a base, a bracket fixed to the upper end of the base, and a mounting plate symmetrically arranged front and rear fixed to the left end of the bracket.

[0007] Furthermore, the lower end of the base is fixed with symmetrical front and back and left and right distributed fixing plates, and the upper and lower ends of the fixing plates are provided with mounting holes.

[0008] Furthermore, a screw hole is provided through the left end of the movable sleeve one, and a screw hole is provided through the left end of the movable sleeve two. Bolts are threaded into both screw holes one and screw holes two.

[0009] Furthermore, the outer wall of the right end of the bolt is attached to the outer wall of the left end of the mounting plate two.

[0010] Furthermore, the support structure also includes bearing one and bearing two. Bearing one is fixedly connected to the inner wall of both front and rear rotating seats one. The inner ring of bearing one is fixedly connected to the front and rear ends of the support roller one. Bearing two is fixedly connected to the inner wall of both front and rear rotating seats two. The inner ring of bearing two is fixedly connected to the front and rear ends of the support roller two.

[0011] Furthermore, each of the sliding columns is fixed to a stud on its right end, and each stud is threaded with a nut on its outer wall. The left end of the nut is attached to the right end of the mounting plate.

[0012] The beneficial effects of this utility model are as follows: The yarn-laying plate, which is slidably installed, can slide up and down along the inner wall of the groove, thereby adjusting the height of the yarn-laying teeth. The equally spaced yarn-laying teeth can separate the processed fibers. In conjunction with the slidingly installed movable sleeve one and movable sleeve two, which can move up and down along the outer wall of the mounting plate two, the support roller one and support roller two can arrange and support the processed fibers. Compared with the existing pre-impregnation machine equipment, the added support structure and yarn-laying structure can install an appropriate number of yarn-laying plates and support rollers according to the arrangement needs, which can separate and support the processed fibers, thereby locking the direction of each fiber, reducing the mutual influence between fibers, and improving the quality of fiber processing. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0014] Figure 2 The diagram shown is a three-dimensional structural disassembly diagram of this utility model;

[0015] Figure 3 The diagram shown is a three-dimensional disassembled view of the load-bearing structure of this utility model.

[0016] Figure 4 The diagram shown is a three-dimensional disassembled view of the adjustment structure of this utility model.

[0017] Figure 5 The diagram shown is a three-dimensional disassembled view of the support structure of this utility model.

[0018] Figure 6 The diagram shown is a three-dimensional disassembled view of the yarn arrangement structure of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Bearing structure; 101. Base; 102. Fixing plate; 103. Bracket; 2. Adjustment structure; 201. Mounting plate one; 202. Mounting plate two; 203. Slide groove; 3. Support structure; 301. Movable sleeve one; 302. Movable sleeve two; 303. Rotating seat two; 304. Rotating seat one; 305. Bearing one; 306. Bearing two; 307. Support roller one; 308. Support roller two; 309. Screw hole one; 310. Screw hole two; 311. Bolt; 4. Yarn arrangement structure; 401. Sliding column; 402. Yarn arrangement plate; 403. Yarn arrangement teeth; 404. Screw; 405. Nut. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Among the feasible methods discovered in this field, the fiber path control precision of prepreg equipment has long been a problem. Traditional mechanical structures often use a combination of fixed yarn-laying teeth and a single support roller, with yarn-laying plates at fixed intervals performing initial combing of the fibers. However, due to the lack of a height adjustment mechanism, it cannot adapt to the arrangement requirements of fibers with different fineness. Especially when processing high-precision materials such as carbon fiber, the fixed height of the yarn-laying teeth easily leads to uneven fiber tension, which in turn causes deviations in the thickness of the prepreg. This structure requires frequent replacement of the entire yarn-laying device when producing multiple fiber varieties, resulting in a significant increase in production line downtime.

[0022] Among the currently available feasible technologies, the adjustment method of the support structure has always been a key area for optimization. Some equipment uses a threaded knob adjustment mechanism, which moves the support roller up and down by manually rotating the bolt. However, this method suffers from low adjustment efficiency and poor positioning accuracy. When frequently changing fiber types, operators need to make repeated adjustments, and the rigid connection between the bolt and the support roller is prone to wobbling, causing the fiber support position to shift. In high-speed production scenarios, this wobbling can seriously affect the consistency of the mechanical properties of the prepreg.

[0023] Among the feasible methods discovered in this field, fiber separation technology has evolved from rigid separation to flexible guidance. Early rigid separation devices used metal yarn guide teeth, which could initially separate fibers, but the friction between the metal material and the fibers easily generated electrostatic adsorption, causing the fibers to become entangled on the surface of the yarn guide teeth. Especially in high humidity environments, the problem of static electricity accumulation is more prominent, and the frequency of fiber entanglement can increase, greatly affecting the continuity of production. While the flexible guidance structures developed later, such as those using silicone yarn guide teeth, reduced the electrostatic effect, their wear resistance was insufficient.

[0024] Among the currently discovered feasible technologies, the application of bearings in support rollers has evolved from sliding bearings to rolling bearings. Traditional sliding bearings, due to their high coefficient of friction, are prone to jamming during the rotation of the support roller, leading to fluctuations in fiber tension. In high-speed production, this jamming can cause fiber breakage. While early rolling bearings reduced friction, defects in their sealing structure design allowed resin to easily seep into the bearing, causing it to seize up.

[0025] Among the feasible methods discovered in this field, equipment installation and fixing methods mostly employ welded or bolted bases. Fixing the yarn arrangement structure to the base via welded brackets makes disassembly and maintenance difficult, and the alignment accuracy between the base and the production line depends on the on-site welding process, making installation deviations prone to occur and affecting fiber path consistency. One company reported that yarn arrangement devices using welded bases resulted in a high rate of defective products with prepreg thickness exceeding tolerances due to installation deviations.

[0026] Among the existing feasible technologies, multi-component coordinated adjustment technology has significant shortcomings. Some equipment designs the yarn feeding structure and support structure independently, requiring operators to adjust the height of the yarn feeding teeth and the position of the support rollers separately. Due to the lack of a linkage adjustment mechanism, it is difficult to ensure the matching degree of the two positions.

[0027] Among the currently available feasible technologies, fiber tension uniformity control remains a common challenge in the industry. Some devices use tension sensors at both ends of the support rollers, but sensor feedback lags behind tension changes and is highly susceptible to mechanical vibration interference, making real-time and precise adjustment difficult. With the diversification of prepreg products, traditional integrated yarn feeding devices struggle to quickly adapt to the production needs of different fiber specifications. Among the currently available feasible technologies, improvements in anti-winding technology focus on the surface treatment of the yarn feeding teeth. Some devices use yarn feeding teeth with a Teflon coating, which reduces fiber adhesion, but the coating's abrasion resistance is insufficient, and long-term use leads to coating peeling, exacerbating fiber entanglement.

[0028] Among the feasible methods discovered in this field, there is a lack of effective solutions for the synchronous control of multiple rows of yarn teeth working together. When processing multiple fiber bundles, traditional devices adjust the multiple rows of yarn teeth independently, requiring operators to calibrate the height of each row of teeth one by one. This is not only time-consuming and labor-intensive, but the height differences between the rows of teeth can easily cause fibers to cross in transition areas. Among the existing feasible technologies, the level of automation in the yarn feeding device is low. Most devices still rely on manual adjustment of the position of the yarn feeding teeth and the support rollers. The adjustment process requires operators to use tools to position each tooth individually, resulting in a long adjustment time per cycle. In scenarios where product specifications are frequently changed, the efficiency of manual adjustment severely restricts the production line capacity.

[0029] Among the feasible methods discovered in this field, there is a technical bottleneck in the linkage control between the yarn feeding device and the prepreg machine. Traditional devices mostly use independent control systems, which are incompatible with the communication protocols of the prepreg machine, resulting in the yarn feeding speed being out of sync with the prepreg machine's traction speed. This can easily lead to fiber accumulation or breakage during startup and shutdown.

[0030] Among the existing feasible technologies, the intelligent monitoring function of the yarn setting device is insufficient. Most devices lack real-time monitoring methods for critical components such as support roller bearings and yarn setting teeth wear, failing to provide early warnings of component failures and leading to unplanned downtime. One company experienced a large-scale fiber entanglement during continuous production due to the failure to detect yarn setting tooth wear in a timely manner. This single incident resulted in significant material losses and prolonged downtime for repairs, highlighting the need for improved energy-saving design in yarn setting devices. Traditional devices often use constant-speed drive motors, maintaining a rated speed regardless of production speed variations, leading to energy waste.

[0031] Please see Figures 1-6 This utility model provides an embodiment: a yarn collecting and distributing device for a prepreg machine, comprising a supporting structure 1, an adjusting structure 2 mounted on the supporting structure 1, the adjusting structure 2 including a mounting plate 201, a supporting structure 3 and a yarn distributing structure 4 mounted on the adjusting structure 2, the supporting structure 3 including a movable sleeve 301, the yarn distributing structure 4 including a sliding column 401, a symmetrical mounting plate 202 fixedly connected to the left end of the mounting plate 201, and slidably mounted on the outer wall of the opposite ends of the mounting plate 202 are the symmetrically positioned movable sleeves 301 and 302, which are corresponding vertically. The left ends of the first 301 and the second 302 are respectively fixed with symmetrical rotating seats 304 and 303. The first 304 has a support roller 307 rotatably installed at one end close to each other, and the second 303 has a support roller 308 rotatably installed at one end close to each other. The left and right ends of the mounting plate 201 are provided with symmetrical sliding grooves 203. The sliding grooves 203 are slidably installed with vertically distributed and symmetrically arranged sliding columns 401 in the sliding grooves 203. The left ends of the sliding columns 401 are fixed with a yarn feeding plate 402. The upper end of the yarn feeding plate 402 is fixed with several yarn feeding teeth 403 that are equidistantly distributed in the front and back.

[0032] The yarn-laying plate 402, which is slidably installed, can slide up and down along the inner wall of the groove 203, thereby adjusting the height of the yarn-laying teeth 403. The equally spaced yarn-laying teeth 403 can separate the processed fibers. In conjunction with the slidingly installed movable sleeve 1 301 and movable sleeve 2 302, which can move up and down along the outer wall of the mounting plate 2 202, the support roller 1 307 and support roller 2 308 can arrange and support the processed fibers, thereby locking the direction of each fiber, reducing mutual influence between fibers, and improving the quality of fiber processing.

[0033] Please see Figure 3In this embodiment, the supporting structure 1 includes a base 101, a bracket 103 fixedly connected to the upper end of the base 101, and a mounting plate 201 symmetrically arranged front and back fixedly connected to the left end of the bracket 103. In use, the base 101 can support the bracket 103, and the bracket 103 can support the mounting plate 201 and the mounting structure on it. The lower end of the base 101 is fixedly connected to a fixing plate 102 symmetrically arranged front and back and distributed left and right. The upper and lower ends of the fixing plate 102 are provided with mounting holes. In use, the base 101 can be easily fixed through the mounting holes on the fixing plate 102, thereby improving the stability of the rotating shaft during operation.

[0034] Please see Figure 5 In this embodiment, a screw hole 309 is provided through the left end of the movable sleeve 301, and a screw hole 310 is provided through the left end of the movable sleeve 302. Bolts 311 are threaded into both screw holes 309 and 310. In use, by rotating and tightening the bolts 311, the bolts 311 can be pressed against the mounting plate 202, so that the inner walls of the movable sleeve 301 and the movable sleeve 302 clamp the outer wall of the mounting plate 202, thereby limiting and fixing the movable sleeve 301 and the movable sleeve 302, and improving the stability of the support roller 307 and the support roller 308 during operation. The outer wall of the right end of the bolt 311 is pressed against the outer wall of the left end of the mounting plate 202. In use, by pressing the outer wall of the mounting plate 202 with the bolt 311, the relative height of the support roller 307 and the support roller 308 can be quickly fixed, and the relative height of the support roller 307 and the support roller 308 can be easily adjusted.

[0035] Please see Figures 5-6 In this embodiment, the support structure 3 further includes a first bearing 305 and a second bearing 306. The inner walls of both front and rear rotating seats 304 are fixedly connected to the first bearing 305. The inner ring of the first bearing 305 is fixedly connected to the front and rear ends of the support roller 307. The inner walls of both front and rear rotating seats 303 are fixedly connected to the second bearing 306. The inner ring of the second bearing 306 is fixedly connected to the front and rear ends of the support roller 308. In use, the first bearing 305 can fix and support the support roller 307, improving the stability of the rotation of the support roller 307. The second bearing 306 can support the support roller 308. 08 is fixed and supported to improve the stability of the rotation of the support roller 2 308, reduce the friction between the processed fiber and the surface of the support roller, and better protect the processed fiber. The right end of the slide column 401 is fixed with a stud 404, and the outer wall of the stud 404 is threaded with a nut 405. The left end of the nut 405 is attached to the right end of the mounting plate 1 201. In use, the nut 405 can be rotated and tightened to attach to and press the mounting plate 1 201, thereby fixing the yarn laying plate 402, improving the stability of the yarn laying plate 402 during operation, and facilitating the adjustment of the relative height of the yarn laying plate 402, thus improving the convenience of use.

[0036] During operation, firstly, select an appropriate number of yarn-laying structures 4 as needed, align the sliding pins 401 on the yarn-laying structures 4 with the sliding grooves 203, and thread the nuts 405 onto the outer wall of each pin 404. Then, adjust the vertical spacing between the yarn-laying structures 4 as needed, and tighten the nuts 405 to fix the yarn-laying structures 4. Next, select an appropriate number of support structures 3 according to the number of yarn-laying structures 4. First, attach the inner wall of the movable sleeve 2 302 to the outer walls of the front and rear ends of the mounting plate 2 202, then attach the inner wall of the movable sleeve 1 301 to the outer walls of the front and rear ends of the mounting plate 2 202. Then, slide the movable sleeve 2 3 as needed. 02. Move the movable sleeve 301 to the vicinity of the corresponding yarn-laying structure 4, and adjust the relative position of the movable sleeve 302 and the movable sleeve 301 so that the support roller 307 and the support roller 308 can support the fibers passing through the yarn-laying teeth 403 as needed. Then, rotate and tighten the bolt 311 so that the right end of the bolt 311 is attached to and presses against the left end of the mounting plate 202, thus completing the fixation of the support structure 3. Then, pass the fibers that need to be laid through the front and rear yarn-laying teeth 403 respectively, and clamp the fibers between the upper and lower support rollers 307 and the support roller 308. Finally, install the fibers at the input end of the pre-impregnation machine and wait for the pre-impregnation machine to process the fibers.

[0037] Through the above steps, the slidingly installed yarn-laying plate 402 can slide up and down along the inner wall of the groove 203, thereby adjusting the height of the yarn-laying teeth 403. The equally spaced yarn-laying teeth 403 can separate the processed fibers. In conjunction with the slidingly installed movable sleeve 1 301 and movable sleeve 2 302, they can move up and down along the outer wall of the mounting plate 2 202, allowing the support roller 1 307 and support roller 2 308 to arrange and support the processed fibers. This solves the problem that it is difficult to accurately control the path of each fiber when using the pre-impregnation machine, thus affecting fiber processing.

Claims

1. A yarn collecting and distributing device for a prepreg machine, comprising a supporting structure (1), characterized in that: An adjustment structure (2) is installed on the supporting structure (1). The adjustment structure (2) includes a mounting plate (201). A support structure (3) and a yarn arrangement structure (4) are installed on the adjustment structure (2). The support structure (3) includes a movable sleeve (301). The yarn arrangement structure (4) includes a sliding column (401). A symmetrical mounting plate (202) is fixed to the left end of the mounting plate (201). A symmetrical movable sleeve (301) and a movable sleeve (302) are slidably installed on the outer wall of the opposite end of the mounting plate (202). The left ends of the movable sleeve (301) and the movable sleeve (302) are symmetrical and corresponding vertically. Two rotating seats, symmetrically arranged front and back, are fixedly connected. A support roller 1 (307) is rotatably installed at one end of the rotating seat 1 (304) that is close to each other. A support roller 2 (308) is rotatably installed at one end of the rotating seat 2 (303) that is close to each other. A sliding groove symmetrically arranged front and back is opened through the left and right ends of the mounting plate 1 (201). A sliding column (401) is slidably installed in the sliding groove (203) that is distributed vertically and symmetrically arranged left and right. A yarn feeding plate (402) is fixedly connected to the left end of the sliding column (401). Several yarn feeding teeth (403) are equidistantly arranged front and back at the upper end of the yarn feeding plate (402).

2. The yarn collecting and distributing device for a prepreg machine according to claim 1, characterized in that: The load-bearing structure (1) includes a base (101), a bracket (103) is fixedly connected to the upper end of the base (101), and a mounting plate (201) with front and rear symmetrically connected to the left end of the bracket (103).

3. The yarn collecting and distributing device for a prepreg machine according to claim 2, characterized in that: The lower end of the base (101) is fixed with a fixing plate (102) that is symmetrical in front and back and distributed in left and right. The upper and lower ends of the fixing plate (102) are provided with mounting holes.

4. The yarn collecting and distributing device for a prepreg machine according to claim 1, characterized in that: The left end of the movable sleeve 1 (301) is provided with a threaded hole 1 (309), and the left end of the movable sleeve 2 (302) is provided with a threaded hole 2 (310). Both the threaded hole 1 (309) and the threaded hole 2 (310) are threaded with bolts (311).

5. A yarn collecting and distributing device for a prepreg machine according to claim 4, characterized in that: The outer wall of the right end of the bolt (311) is attached to the outer wall of the left end of the mounting plate (202).

6. A yarn collecting and distributing device for a prepreg machine according to claim 5, characterized in that: The support structure (3) also includes a bearing 1 (305) and a bearing 2 (306). The inner walls of the front and rear rotating seats 1 (304) are fixed with bearing 1 (305). The inner wall of the inner ring of bearing 1 (305) is fixed with the front and rear shafts of the support roller 1 (307). The inner walls of the front and rear rotating seats 2 (303) are fixed with bearing 2 (306). The inner wall of the inner ring of bearing 2 (306) is fixed with the front and rear shafts of the support roller 2 (308).

7. A yarn collecting and distributing device for a prepreg machine according to claim 1, characterized in that: Each of the sliding studs (401) has a stud (404) fixed to its right end. Each stud (404) has a nut (405) threaded onto its outer wall. The left end of the nut (405) is attached to the right end of the mounting plate (201).

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