A limiting device for carbon fiber yarn collection

Abstract

The utility model discloses a kind of for carbon fiber yarn collecting limiting device, it is related to carbon fiber production equipment technical field.The device includes rack, winding roller and tow limiting mechanism, winding roller is rotated and is located on rack, and tow limiting mechanism is located on rack, and tow limiting mechanism includes limiting roller, the two ends of limiting roller are recessed to middle and form limiting slot, limiting slot is used to accommodate tow, and limiting position of tow on limiting roller is limited.The utility model is guided by the guidance restraint of tow limiting mechanism, in the process of winding roller rotation, limiting mechanism guides tow to preset path by physical contact, reduces the relative sliding of tow and roll surface, can limit the swing amplitude of tow, avoid that tow moves to the two edge ends of winding roller, slips to outside winding roller, reduces manual participation, improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of carbon fiber production equipment, specifically, it relates to a limiting device for carbon fiber take-up. Background Technology

[0002] Carbon fiber products typically exist in the form of continuous fiber bundles. In the composite material preparation process, the fiber bundles must first be laid up in a specific orientation or formed into a fabric with a predetermined structure through a weaving process. Then, a resin impregnation process is used to fully impregnate the fibers, and finally, a curing reaction is carried out to form composite material products.

[0003] In the carbon fiber production process, the fiber bundle needs to undergo a series of operations, including pre-oxidation, carbonization, surface treatment, sizing, and winding. Among these, the winding process involves winding the carbonized fiber bundle into a roll using a winding machine to keep the fibers neatly aligned and prevent them from becoming loose or broken.

[0004] Chinese Patent Application No. CN201720742189.0 discloses a device for enhancing the unfolding of large-tow carbon fiber take-up machine. This utility model guides the carbon fiber filament from top to bottom through the first guide roller, the second guide roller, and the third guide roller to the winding end of the take-up machine. The take-up machine pulls the filament to wind it, and the reciprocating motion mechanism drives the guide head to move back and forth. Under the action of each guide roller group, the fiber filament is evenly unfolded, and the carbon fiber filament is wound up and wound.

[0005] However, during the above-mentioned winding process, since the surfaces of each guide roller are smooth, the carbon fiber bundle is prone to slipping on the guide roller. This causes the carbon fiber bundle to easily slip off to the outside of the winding drum when it is wound to the edge of the winding drum. Operators need to monitor and adjust it from time to time to complete stable winding, which increases labor costs and reduces production efficiency.

[0006] In view of this, this utility model is hereby proposed. Utility Model Content

[0007] In order to solve at least some of the above-mentioned problems, this utility model provides a limiting device for carbon fiber take-up.

[0008] The basic concept of the technical solution adopted in this utility model is:

[0009] A limiting device for carbon fiber take-up includes a frame, a take-up roller, and a fiber bundle limiting mechanism. The take-up roller is rotatably mounted on the frame, and the fiber bundle limiting mechanism is mounted on the frame. The fiber bundle limiting mechanism includes a limiting roller, with both ends of the limiting roller recessed inward to form a limiting groove. The limiting groove is used to accommodate the fiber bundle and limit the position of the fiber bundle on the limiting roller.

[0010] Furthermore, the filament towing limiting mechanism also includes a reciprocating motion component, which is movably mounted on the frame, and a limiting roller is mounted on the reciprocating motion component to guide the filament towing along a fixed path within a preset range of the take-up roller.

[0011] Furthermore, the reciprocating motion assembly includes a linear guide rail and a support member, with the linear guide rail mounted on the frame and the support member slidably mounted on the linear guide rail.

[0012] Furthermore, the filament limiting mechanism also includes a guide roller, which is mounted on the reciprocating motion assembly and located on the side of the limiting roller close to the take-up roller.

[0013] Furthermore, multiple guide rollers are provided, and the angle between the distribution direction of the multiple guide rollers and the vertical direction is an acute angle.

[0014] Furthermore, the filament limiting mechanism also includes a guide roller, which is mounted on the reciprocating motion assembly and located on the side of the limiting roller away from the take-up roller.

[0015] Furthermore, multiple guide rollers are provided, and these multiple guide rollers are staggered in the vertical direction within the same plane.

[0016] Furthermore, the filament limiting mechanism also includes a pressure roller, which is mounted on the reciprocating motion assembly and located on the side of the limiting roller close to the guide roller.

[0017] Furthermore, the two ends of the support member are bent vertically upward and downward respectively along the horizontal direction to form a guide section, a limiting section and a guiding section. The guide roller is set on the guide section, the limiting roller and the pressure roller are set on the limiting section, and the guiding roller is set on the guiding section.

[0018] Furthermore, the axis of the guide roller is set perpendicular to the axis of the limit roller, the pressure roller, and the guide roller.

[0019] This utility model has at least the following beneficial effects:

[0020] 1. This utility model uses the guiding constraint of the filament bundle limiting mechanism to guide the filament bundle to a preset path through physical contact during the rotation of the take-up roller. This reduces the relative sliding between the filament bundle and the roller surface, limits the swing amplitude of the filament bundle, and prevents the filament bundle from slipping off the take-up roller when it moves to the two sides of the take-up roller. This reduces the need for manual resetting and improves production efficiency.

[0021] 2. This utility model uses the guiding constraint of the filament bundle limiting mechanism. The limiting mechanism guides the filament bundle to a preset path through physical contact, which can avoid the deviation or overlap caused by uneven tension of the filament bundle, thereby maintaining the tightness of the winding and the parallelism between layers.

[0022] 3. This utility model reduces the relative sliding between the filament bundle and the roller surface by using the directional constraint of the filament bundle limiting mechanism, thereby reducing the risk of filament bundle surface wear and effectively suppressing burrs or loosening at the edge of the roll material. Attached Figure Description

[0023] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0024] Figure 1 A front view of the limiting device in an embodiment of this utility model is shown;

[0025] Figure 2 A side view of the limiting device in an embodiment of the present invention is shown.

[0026] In the picture:

[0027] 1. Take-up roller; 2. Wire bundle limiting mechanism; 21. Support component; 211. Guide section; 212. Limiting section; 213. Guide section; 22. Limiting roller; 221. Limiting groove; 23. Guide roller; 24. Guide roller; 25. Pressure roller; 26. Vertical plate; 27. Connecting plate.

[0028] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figures 1 to 2 As shown, this utility model provides a limiting device for carbon fiber take-up.

[0033] According to the example embodiment, such as Figure 1 As shown, a limiting device for carbon fiber take-up includes a frame, a take-up roller 1, and a fiber bundle limiting mechanism 2. The take-up roller 1 is rotatably mounted on the frame, and the fiber bundle limiting mechanism 2 is mounted on the frame. The fiber bundle limiting mechanism 2 includes a limiting roller 22. The two ends of the limiting roller 22 are recessed towards the center to form a limiting groove 221. The limiting groove 221 is used to accommodate the fiber bundle and limit the position of the fiber bundle on the limiting roller 22.

[0034] For example, the frame can be, but is not limited to, a profile frame or a sheet metal structure. If the frame is a profile frame, an aluminum alloy profile frame can be used, with its beams and columns connected by high-strength bolts to form a modular structure. If the frame is a sheet metal structure, welded steel plates can be used, and these welded steel plates are fixed to the steel frame or other components.

[0035] A fixing plate can be installed on one side of the frame. The fixing plate can be made of stainless steel. The take-up roller 1 is rotatably connected to the fixing roller through a drive element, which may include, but is not limited to, a motor, a motor with a reducer, or a motor and pulley assembly.

[0036] For example, the yarn bundle limiting mechanism 2 also includes a reciprocating motion assembly, a guide roller 23, a guide roller 24, and a pressure roller 25. The reciprocating motion assembly is movably mounted on the frame, and the limiting roller 22 is mounted on the reciprocating motion assembly to guide the yarn bundle to wind along a fixed path within a preset range of the take-up roller 1. The guide roller 23 is mounted on the reciprocating motion assembly and is located on the side of the limiting roller 22 closest to the take-up roller 1. The guide roller 24 is mounted on the reciprocating motion assembly and is located on the side of the limiting roller 22 furthest from the take-up roller 1. The pressure roller 25 is mounted on the reciprocating motion assembly and is located on the side of the limiting roller 22 closest to the guide roller 24.

[0037] It should be noted that the fixed path refers to the path along which the filament bundle swings following the linear guide rail under the constraint of the limiting roller 22. The preset range can be set according to the length of the take-up roller 1 and the actual operation requirements. For example, the preset range can be a range where the edge of the filament bundle is not less than 3 cm from the end face of the take-up roller 1.

[0038] After sizing and drying, the filament bundle is guided by a guiding mechanism to a reciprocating motion assembly, which then guides the filament bundle to wind onto the take-up roller 1. The guiding mechanism can be a grooved wheel assembly, which is set according to the actual processing environment, and the grooved wheels are rotatably connected to the frame.

[0039] For example, the frame (not shown in the figure) is an aluminum alloy profile frame, a fixed plate (not shown in the figure) is installed on one side of the frame, the take-up roller 1 is rotatably connected to a motor (not shown in the figure), the motor is mounted on the fixed plate, and its output shaft is connected to the end of the take-up roller 1 through a bearing (not shown in the figure).

[0040] The yarn bundle limiting mechanism 2 includes a reciprocating motion assembly, a limiting roller 22, a guide roller 23, a guide roller 24, and a pressure roller 25. The reciprocating motion assembly includes a linear guide rail and a support member 21. The linear guide rail is mounted on the frame, and the support member 21 is slidably mounted on the linear guide rail. The guide roller 23 is mounted on the support member 21 and is located on the side of the limiting roller 22 closest to the take-up roller 1. The guide roller 24 is mounted on the support member 21 and is located on the side of the limiting roller 22 furthest from the take-up roller 1. The pressure roller 25 is mounted on the support member 21 and is located on the side of the limiting roller 22 closest to the guide roller 24.

[0041] Through the above embodiments, the present invention drives the support member 21 to move by a linear guide rail. The support member 21 synchronously drives each roller group to move linearly. Under the action of the limiting groove 221, the wire bundle is not easy to slide on the roller surface. Under the guidance of the guide roller 23, the guide roller 24 and the pressure roller 25, the wire bundle is effectively prevented from moving and loosening during the winding process. This allows the wire bundle to be evenly wound on the winding roller 1 within a preset range, avoiding the wire bundle from slipping off the winding roller 1 and improving production efficiency.

[0042] According to the example embodiment, such as Figure 1 and Figure 2 As shown, the filament limiting mechanism 2 includes a reciprocating motion assembly (not shown in the figure) and a limiting roller 22. The reciprocating motion assembly is movably mounted on the frame and is used to wind the filament along a fixed path within a preset range of the take-up roller. The limiting roller 22 is mounted on the reciprocating motion assembly, and the two ends of the limiting roller 22 are recessed inward to form a limiting groove 221.

[0043] For example, the reciprocating motion assembly may include, but is not limited to, a servo motor with a ball screw pair, a linear motor, or a servo motor with a synchronous belt, to achieve reciprocating linear movement of the yarn bundle along the axial direction of the limiting roller 22, so that the yarn bundle can be evenly wound on the take-up roller 1. Optionally, the reciprocating motion assembly includes a linear guide rail and a support member 21, with the linear guide rail mounted on the frame and the support member 21 slidably mounted on the linear guide rail.

[0044] For example, the support member 21 may be, but is not limited to, a block structure or a plate structure, and the sliding direction of the support member 21 is perpendicular to the fixed plate. Optionally, the two ends of the support member 21 are bent vertically upward and downward along the horizontal direction, respectively, to form a guide section 211, a limiting section 212, and a guide section 213.

[0045] For example, such as Figure 2 As shown, the linear guide rail (not shown) is horizontally positioned, with one end vertically fixed to a fixed plate. Specifically, it can be mounted on the fixed plate using high-strength bolts. The support member 21 forms a linear sliding pair with the guide rail via a slider (not shown). Specifically, the slider is slidably connected to the guide rail, while the support member 21 is fixedly connected to the slider. More specifically, the sliding connection between the slider and the guide rail is achieved by directly connecting the servo motor to the ball screw via a coupling, and the slider is connected to the ball screw.

[0046] The support member 21 is a plate-shaped structure, specifically a rectangular plate. Both ends of the support member 21 are bent at 90° in the horizontal direction and vertically upward and downward respectively, forming a guide section 211, a limiting section 212 and a guide section 213 in sequence. That is, the guide section 211 and the guide section 213 are the vertical parts of the support member 21, and the limiting section 212 is the horizontal part of the support member 21.

[0047] The two ends of the limiting roller 22 are recessed towards the middle to form a limiting groove 221. Specifically, the roller body surface is machined to form a double conical structure, and the diameter at both ends is reduced by 5-8mm compared with the middle to form the limiting groove 221. The groove depth is transitioned by a round arc to avoid wear of the filament bundle.

[0048] The limiting groove 221 is an annular groove, and the cross section along the axial direction of the limiting roller 22 is an isosceles trapezoid. The upper base of the isosceles trapezoid is the bottom position of the limiting groove 221, and the lower base is the opening position of the limiting groove 221. The side length of the upper base of the isosceles trapezoid is slightly larger than the width of the wire harness, but does not exceed twice the width of the wire harness.

[0049] The axis of the limiting roller 22 is parallel to the moving direction of the slider. The limiting roller 22 is rotatably connected to the support member 21 through the vertical plate 26. Specifically, the vertical plate 26 is a rectangular plate structure and is parallel to the fixed plate. The vertical plate 26 is fixedly connected to the limiting section 212 of the support member 21. More specifically, the vertical plate 26 and the support member 21 can be integrally formed.

[0050] Through the above embodiments, this utility model guides the filament bundle through the guide section 211, the limiting section 212 and the guide section 213 of the support member 21, and drives the filament bundle to move linearly back and forth along the axial direction of the take-up roller 1. Under the rotation of the take-up roller 1, the filament bundle can be evenly wound on the take-up roller 1, and the movement of the filament bundle is restricted by the limiting roller 22, which can effectively prevent the filament bundle from deviating or loosening during the movement. This not only optimizes the winding path of the filament bundle, but also significantly improves the neatness and density of the winding.

[0051] According to the example embodiment, such as Figure 1 and Figure 2 As shown, the filament limiting mechanism 2 also includes a guide roller 23, which is disposed on the reciprocating motion assembly and located on the side of the limiting roller 22 close to the winding roller 1.

[0052] For example, the guide roller 23 can be a cylindrical structure used to guide the filament bundle onto the take-up roller 1. Since the filament bundle is easily hardened when cooled, its smooth roller surface makes it easy for the operator to adjust the position of the filament bundle.

[0053] The guide roller 23 is rotatably mounted on the guide section 213 of the support member 21. The axial direction of the guide roller 23 is parallel to the axial direction of the limiting roller 22. The guide roller 23 can be connected to the support member 21 through the connecting plate 27. The connection method can be that the guide roller 23 is rotatably connected to the connecting plate 27, and the connecting plate 27 is fixedly connected to the support member 21. The fixed connection method can include, but is not limited to, integral casting, welding or bolt connection.

[0054] Optionally, multiple guide rollers 23 are provided, and the angle between the distribution direction of the multiple guide rollers 23 and the vertical direction is an acute angle. For example, the connecting plate 27 can be a strip-shaped plate structure, and the multiple guide rollers 23 are distributed along the length direction of the connecting plate 27. The angle between the distribution direction of the multiple guide rollers 23 and the vertical direction can be in the range of 12°-18°.

[0055] For example, such as Figure 1 As shown, there are three guide rollers 23, and the angle between the distribution direction of the three guide rollers 23 and the vertical direction is 15°. The three guide rollers 23 are divided into a first guide roller, a second guide roller, and a third guide roller in sequence along the direction of the limiting roller 22 near the take-up roller 1. The three guide rollers 23 guide the yarn bundle from the upper surface of the first guide roller to the lower surface of the second guide roller, then to the upper surface of the third guide roller, and finally wound onto the take-up roller 1.

[0056] The guide roller 23 is rotatably connected to the connecting plate 27. The connecting plate 27 is integrally formed with the support member 21. The guide roller 23 is located on the guide section 213 of the support member 21. The axial direction of the guide roller 23 is parallel to the axial direction of the limiting roller 22. The guide roller 23 has a cylindrical structure.

[0057] Through the above embodiments, the present invention can reduce the trajectory deviation of the filament by having the low-friction contact surface of the guide roller 23 contact the filament, so that the filament can be evenly wound on the take-up roller 1. Furthermore, by limiting the included angle range of the guide roller 23, the present invention can balance the tension of the filament, optimize the winding path of the filament, and thus improve the winding effect of the filament.

[0058] According to the example embodiment, such as Figure 1 and Figure 2 As shown, the filament limiting mechanism 2 also includes a guide roller 24, which is disposed on the reciprocating motion assembly and located on the side of the limiting roller 22 away from the winding roller 1.

[0059] For example, guide roller 24 is rotatably connected to support member 21 and is perpendicular to the guide section 211 of support member 21, used to guide the filament bundle into the limiting groove 221 of limiting roller 22. The axial direction of guide roller 24 is perpendicular to the axial direction of limiting roller 22 and guide roller 23.

[0060] Optionally, multiple guide rollers 24 are provided, and the multiple guide rollers 24 are staggered in the vertical direction in the same plane. It should be noted that the same plane refers to a plane parallel to the guide section 211 of the support member 21.

[0061] For example, such as Figure 2 As shown, there are three guide rollers 24. The three guide rollers 24 are staggered in the vertical direction in the same plane. They are divided into the first guide roller, the second guide roller and the third guide roller in the vertical downward direction. The first guide roller and the second guide roller are cylindrical structures, and the third guide roller is a thumb-shaped structure, that is, the cross-sectional profile along its axial direction presents an arc-shaped protrusion similar to a thumb.

[0062] Through the above embodiments, the present invention uses staggered guide rollers 24 to make the filament undergo three directional corrections before entering the limiting groove 221. The first guide roller serves as the initial contact point, and its cylindrical surface, through a uniform wrap angle design, enables the filament to obtain a basic tension distribution. The second guide roller further presses the filament into a predetermined path through axial pressure. The arc-shaped protrusion of the third guide roller makes non-linear contact with the filament. By compensating for the small trajectory deviations generated by the first two rollers through local pressure differences, the direction of the filament can be controlled more precisely.

[0063] According to the example embodiment, such as Figure 1 As shown, the filament limiting mechanism 2 also includes a pressure roller 25, which is mounted on the reciprocating motion assembly and located on the side of the limiting roller 22 close to the guide roller 24.

[0064] For example, the pressure roller 25 is a cylindrical structure, rotatably mounted on the vertical plate 26, and located on the side of the limiting roller 22 close to the guide roller 24. The pressure roller 25 and the limiting roller 22 are located in the same horizontal plane, and the diameter of the pressure roller 25 is larger than the diameter of the limiting roller 22.

[0065] The guiding mechanism guides the filament bundle from top to bottom, passing sequentially around the left side of the first guiding roller, the right side of the second guiding roller, and the left side of the third guiding roller, and then from the lower surface of the pressure roller to the upper surface of the limiting roller 22, entering the limiting groove 221.

[0066] Through the above embodiments, the present invention utilizes the synergistic effect of the pressure roller 25 and the guide roller 24. Since the horizontal installation position of the pressure roller 25 forms a parallel plane with the limiting roller 22, the yarn bundle generates a wrap angle when it contacts the lower surface of the pressure roller 25, allowing the yarn bundle to naturally transition to the upper surface of the limiting roller 22, thereby improving the tension of the yarn bundle and enabling more precise control of the yarn bundle trajectory.

[0067] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A limiting device for carbon fiber take-up, characterized in that, include: frame; The take-up roller is rotatably mounted on the frame. A filament bundle limiting mechanism is disposed on the frame, and the filament bundle limiting mechanism includes: The limiting roller has two ends that are recessed inward to form a limiting groove, which is used to accommodate the filament bundle and limit the position of the filament bundle on the limiting roller.

2. The limiting device for carbon fiber take-up according to claim 1, characterized in that, The filament limiting mechanism further includes: A reciprocating motion assembly is movably mounted on the frame, and a limiting roller is mounted on the reciprocating motion assembly to guide the filament bundle to wind along a fixed path within a preset range of the take-up roller.

3. The limiting device for carbon fiber take-up according to claim 2, characterized in that, The reciprocating motion component includes: Linear guide rails are mounted on the frame; The support is slidably mounted on the linear guide rail.

4. A limiting device for carbon fiber take-up according to claim 3, characterized in that, The filament limiting mechanism further includes: The guide roller is disposed on the reciprocating motion assembly and is located on the side of the limiting roller close to the take-up roller.

5. A limiting device for carbon fiber take-up according to claim 4, characterized in that, The guide rollers are configured in multiple ways, and the angle between the distribution direction of the multiple guide rollers and the vertical direction is an acute angle.

6. A limiting device for carbon fiber take-up according to claim 5, characterized in that, The filament limiting mechanism further includes: A guide roller is disposed on the reciprocating motion assembly and is located on the side of the limiting roller away from the take-up roller.

7. A limiting device for carbon fiber take-up according to claim 6, characterized in that, The guide rollers are configured in multiple ways, and the multiple guide rollers are staggered in the vertical direction in the same plane.

8. A limiting device for carbon fiber take-up according to claim 6 or 7, characterized in that, The filament limiting mechanism further includes: The pressure roller is mounted on the reciprocating motion assembly and is located on the side of the limiting roller close to the guide roller.

9. A limiting device for carbon fiber take-up according to claim 8, characterized in that, The two ends of the support member are bent vertically upward and downward along the horizontal direction, respectively, to form a guide section, a limiting section and a guiding section. The guide roller is disposed on the guide section, the limiting roller and the pressure roller are disposed on the limiting section, and the guiding roller is disposed on the guiding section.

10. A limiting device for carbon fiber take-up according to claim 9, characterized in that, The axis of the guide roller is perpendicular to the axis of the limiting roller, the pressure roller and the guide roller.

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