Tool for directly binding carbon fibers on workpiece

Abstract

The invention discloses a tool for directly binding carbon fibers on a workpiece. The tool comprises a main support, a pay-off rack, a pre-tightening wheel set, a rubber rolling wheel, a lead fork, a rubber scraping wheel set, a pre-tightening gravity wheel and a gravity wheel supporting wheel. In the tool, glue is adhered to the surface of the glue rolling wheel, carbon fibers moving from the glue rolling wheel are only in contact with the glue adhered to the roller (in order to ensure that the glue rolling wheel can rotate along with the carbon fibers, a pre-tightening wheel set is arranged in front of the glue rolling wheel), the purpose of reducing the glue content of the carbon fibers is achieved, a glue scraping wheel set structure is additionally arranged before the carbon fibers are bound to a rotor, and the glue content of the carbon fibers is further reduced; the lead sleeve and the lead fork are arranged, it is ensured that carbon fibers of different trays cannot be twisted in the binding process, the carbon fibers pass through the lead fork, and the distance between the carbon fibers can be reduced; pre-tightening force is increased before the carbon fibers are bound on the rotor, a pre-tightening gravity wheel structure is designed, it is ensured that the carbon fibers are straightened when the carbon fibers are bound on the rotor, and finally the binding strength of the end of the rotor is ensured.

Description

Technical Field

[0001] This patent relates to the field of doubly-fed wind turbines. Specifically, it is a tooling for directly binding carbon fiber on a workpiece, mainly used for binding carbon fiber at the end of the rotor of a doubly-fed wind turbine (hereinafter referred to as the power generation motor in this article) to fix the end of the rotor coil, and can also be used in any working condition that requires circumferential binding of carbon fiber. Background Art

[0002] In response to the demand for the transformation of wind turbine models in the wind power market towards high power, the weight of the wind turbine rotor has gradually increased, and the requirements for the end strength of the motor have gradually increased. Conventional fiberglass tapes (self-forming, containing glue) have limited self-strength and cannot achieve the required strength within a limited volume. If the strength cannot be met, the rotor cannot be made larger, the motor power cannot be increased further, and the market demand cannot be satisfied. To solve this problem, carbon fiber with higher strength is considered as the binding material, but there is no suitable formed carbon fiber binding tape on the market, and loose carbon fiber needs to be directly bound on the rotor. Since carbon fiber has no self-adhesion, before binding the carbon fiber on the claws, the carbon fiber needs to be impregnated with glue to ensure that the carbon fiber can be baked and cured into a whole after being bound on the rotor.

[0003] Therefore, a carbon fiber impregnation structure needs to be designed. During the trial production process, three main problems are encountered: First, the carbon fiber has too much glue content. The solution is that the carbon fiber is directly immersed in the glue tank through roller extrusion. After verification by trial production, this solution results in too much glue content in the carbon fiber. After being bound on the rotor, too much glue is extruded, causing a large amount of waste and pollution, and too much glue occupies the space of the carbon fiber, making it impossible to ensure the carbon fiber content within a limited volume. Second, the carbon fiber is twisted during the processes such as impregnating with glue, and the distance between the 6 groups of carbon fibers is too large, resulting in uneven distribution after being bound at the end of the rotor. Third, the pre-tightening force of the carbon fiber is too small, and the binding is loose. After binding the carbon fiber on the end of the rotor during trial production, it is found that the carbon fiber is too loose and cannot be straightened, affecting the overall strength. Summary of the Invention

[0004] The technical problem to be solved by this patent is to provide a tooling for directly binding carbon fiber on a workpiece in view of the above-mentioned prior art. In this tooling, the surface of the glue rolling wheel is sticky, and the moving carbon fiber released from the glue rolling wheel only contacts the glue adhered to the rolling wheel (to ensure that the glue rolling wheel can rotate with the carbon fiber, a pre-tightening wheel group is set in front of the glue rolling wheel), so as to achieve the purpose of reducing the glue content of the carbon fiber, and a glue scraping wheel group structure is added before binding to the rotor to further reduce the glue content of the carbon fiber; a lead sleeve and a lead fork are set to ensure that the carbon fibers from different trays will not be twisted during the binding process, and the distance between the carbon fibers can be reduced through the lead fork; a pre-tightening force is added before the carbon fiber is bound to the rotor, and a pre-tightening gravity wheel structure is designed to ensure that the carbon fiber is straightened when bound to the rotor, ultimately ensuring the binding strength at the end of the rotor.

[0005] To achieve the above technical objectives, the technical solution adopted in this patent is as follows:

[0006] A tooling for directly binding carbon fiber on a workpiece, comprising a main bracket, a wire pay-off stand, a pre-tightening wheel set, a glue rolling wheel, a wire guiding fork, a glue scraping wheel set, a pre-tightening gravity wheel and a gravity wheel supporting wheel;

[0007] A plurality of wire pay-off stands for fixing carbon fiber coils are connected to the main bracket. A plurality of parallel wire guiding sleeves are fixedly connected to the main bracket. Each wire guiding sleeve is provided with a wire guiding hole. Mounting plates are fixedly connected to both the left and right sides of the main bracket. A glue trough is arranged at the bottom between the two mounting plates. A wire guiding fork is connected between the two mounting plates;

[0008] The pre-tightening wheel set includes a first pre-tightening wheel, a second pre-tightening wheel and a first tightening device. The axle of the first pre-tightening wheel is connected to the mounting plate. The axle of the second pre-tightening wheel is connected in a waist-shaped hole on the mounting plate. The axle of the second pre-tightening wheel can be adjusted in the waist-shaped hole on the mounting plate so that the second pre-tightening wheel approaches the first pre-tightening wheel. The first tightening device is connected to the mounting plate and is used to tighten the axle of the second pre-tightening wheel in the direction of the first pre-tightening wheel;

[0009] The axle of the glue rolling wheel is connected to the mounting plate and is located directly above the glue trough;

[0010] The glue scraping wheel set includes a first glue scraping wheel, a second glue scraping wheel and a second tightening device. The axle of the first glue scraping wheel is connected to the mounting plate. The axle of the second glue scraping wheel is connected in a waist-shaped hole on the mounting plate. The axle of the second glue scraping wheel can be adjusted in the waist-shaped hole on the mounting plate so that the second glue scraping wheel approaches the first glue scraping wheel. The second tightening device is connected to the mounting plate and is used to tighten the axle of the second glue scraping wheel in the direction of the first glue scraping wheel;

[0011] The axle of the pre-tightening gravity wheel is placed in a strip-shaped vertical groove of the mounting plate and the axle of the pre-tightening gravity wheel can move freely up and down in the strip-shaped vertical groove. The strip-shaped vertical groove penetrates through the top of the mounting plate;

[0012] The axle of the gravity wheel supporting wheel is connected to the mounting plate;

[0013] The wire pay-off stand, the wire guiding sleeve, the pre-tightening wheel set, the glue rolling wheel, the wire guiding fork, the glue scraping wheel set, the pre-tightening gravity wheel and the gravity wheel supporting wheel are arranged in sequence from front to back.

[0014] As a further improved technical solution of this patent, a vertical opening groove is opened at the top end of the wire pay-off stand. The vertical opening groove penetrates through the top of the wire pay-off stand. A lateral opening groove is opened on the side surface of the wire pay-off stand. The lateral opening groove penetrates through the side surface of the wire pay-off stand;

[0015] There are multiple sets of unwinding racks. Each set of unwinding racks includes two symmetrically arranged unwinding racks. The heights of the bottoms of the vertical opening grooves of each set of unwinding racks are different, and the heights of the bottoms of the lateral opening grooves of each set of unwinding racks are different;

[0016] Both ends of the coil in the carbon fiber coil are respectively connected in the vertical opening groove or the lateral opening groove of two symmetrically arranged unwinding racks.

[0017] As a further improved technical solution of this patent, a plurality of circular through holes for installing the first pre-tightening wheel, the glue rolling wheel, the first glue scraping wheel and the gravity wheel support wheel are provided on the mounting plate. A plurality of waist-shaped holes for installing the second pre-tightening wheel and the second glue scraping wheel are provided on the mounting plate. A strip-shaped vertical groove is provided on the mounting plate.

[0018] As a further improved technical solution of this patent, the first pre-tightening wheel, the second pre-tightening wheel, the first glue scraping wheel, the second glue scraping wheel and the gravity wheel support wheel all adopt rolling shafts. The rolling shaft includes a wheel shaft and a sleeve. The sleeve is rotatably connected to the wheel shaft through a bearing; there is a threaded hole at the end face of the wheel shaft, and the threaded hole of the wheel shaft is locked and connected to the mounting plate through a bolt.

[0019] As a further improved technical solution of this patent, the first tightening device and the second tightening device include a threaded block and a bolt. The threaded block is fixedly connected to the mounting plate. The bolt is threadedly connected in the threaded through hole of the threaded block, and the end of the bolt rod is used to tighten the wheel shaft of the second pre-tightening wheel or the wheel shaft of the second glue scraping wheel.

[0020] As a further improved technical solution of this patent, the glue rolling wheel and the pre-tightening gravity wheel include a rolling shaft and a hollow barrel fixedly connected to the outside of the sleeve in the rolling shaft; the end of the wheel shaft of the glue rolling wheel is locked and connected to the mounting plate through a bolt.

[0021] As a further improved technical solution of this patent, the glue tank is fixedly connected to the main bracket, and the front side and the rear side of the glue tank are both inclined surface structures.

[0022] As a further improved technical solution of this patent, the lead fork includes a fork rod and multiple fork heads. The fork rod is fixedly connected between two mounting plates, and multiple fork heads are fixedly connected to the middle of the fork rod at intervals.

[0023] As a further improved technical solution of this patent, a wire passing cylinder is further fixedly connected to the rear end of the main bracket, and a strip-shaped wire passing through hole is provided on the wire passing cylinder.

[0024] The beneficial effects of this patent are:

[0025] This patent successfully solves the above problems: First, optimize the sizing solution for carbon fiber so that the carbon fiber passes above the sizing roller, driving the sizing roller to rotate. The surface of the sizing roller is coated with glue, and the moving carbon fiber on the sizing roller only contacts the glue adhered to the sizing roller (to ensure that the sizing roller can rotate with the carbon fiber, a pre-tightening roller group is set in front of the sizing roller), achieving the purpose of reducing the glue content of the carbon fiber. And a scraping roller group structure is added before binding to the rotor to further reduce the glue content of the carbon fiber. Second, after the pay-off rack and after the dipping process, lead holes and lead forks are set to ensure that the carbon fibers from different reels will not be twisted during the binding process, and the distance between carbon fibers can be reduced (about 2 mm) through the lead forks. Third, increase the pre-tightening force before binding the carbon fiber to the rotor, design a pre-tightening gravity wheel structure to ensure that the carbon fiber is straightened when bound to the rotor, and ultimately ensure the binding strength at the end of the rotor. Description of the Drawings

[0026] Figure 1 This is the front view of the working state of the tooling of this patent.

[0027] Figure 2 This is the top view of the working state of the tooling of this patent.

[0028] Figure 3 This is the schematic diagram of the structure of the pay-off rack in the tooling of this patent.

[0029] Figure 4 This is the schematic diagram of the structure of the rolling shaft in the tooling of this patent.

[0030] Figure 5 This is the schematic diagram of the structure of the sizing roller in the tooling of this patent.

[0031] Figure 6 This is the schematic diagram of the structure of the pre-tightening gravity wheel in the tooling of this patent.

[0032] Figure 7 This is the schematic diagram of the structures of the first and second tightening devices in the tooling of this patent.

[0033] Figure 8 This is the schematic diagram of the threaded block in the first and second tightening devices in the tooling of this patent.

[0034] Figure 8 In (a) is the front view of the threaded block.

[0035] Figure 8 In (b) is the top view of the threaded block.

[0036] Figure 9 This is the schematic diagram of the structure of the glue trough in the tooling of this patent.

[0037] Figure 9 In (a) is the front view of the glue trough.

[0038] Figure 9 In (b) is the top view of the glue tank.

[0039] Figure 10 This is the schematic diagram of the lead fork structure in the tooling of this patent.

[0040] Figure 10 In (a) is the side view of the lead fork.

[0041] Figure 10 In (b) is the top view of the lead fork.

[0042] Figure 11 This is the schematic diagram of the main bracket structure in the tooling of this patent.

[0043] Figure 11 In (a) is the front view of the main bracket.

[0044] Figure 11 In (b) is the top view of the main bracket. Detailed implementation mode

[0045] The following further explains the detailed implementation mode of this patent according to the attached drawings:

[0046] As Figure 1-2 shown, a tooling for directly binding carbon fiber on a workpiece includes a main bracket 1, a wire unwinding rack 2, a pre-tightening wheel set 5, a glue rolling wheel 6, a lead fork 7, a glue scraping wheel set 8, a pre-tightening gravity wheel 9, a gravity wheel support wheel 10, etc.

[0047] At the front end of the main bracket 1, a plurality of wire unwinding racks 2 for fixing carbon fiber coils 3 are welded and fixed. On the main bracket 1, a plurality of parallel lead sleeves 4 are also fixedly connected. Each lead sleeve 4 is provided with a lead hole. Symmetrically arranged mounting plates 1A are fixedly connected to the left and right sides of the main bracket 1 respectively. A glue tank 14 is arranged at the bottom between the two mounting plates 1A, and a lead fork 7 is connected between the two mounting plates 1A.

[0048] As Figure 1-2 shown, the pre-tightening wheel set 5 includes a pre-tightening wheel one 5A, a pre-tightening wheel two 5B and a top-tightening device one 5C. The two ends of the wheel shaft of the pre-tightening wheel one 5A are respectively connected to the two mounting plates 1A. The two ends of the wheel shaft of the pre-tightening wheel two 5B are respectively connected to the waist-shaped holes 1A1 on the two mounting plates 1A. The two ends of the wheel shaft of the pre-tightening wheel two 5B can be adjusted in the waist-shaped holes 1A1 on the mounting plates 1A respectively so that the pre-tightening wheel two 5B approaches the pre-tightening wheel one 5A. The top-tightening device one 5C is connected to the mounting plate 1A and is used to top-tight the wheel shaft of the pre-tightening wheel two 5B in the direction of the pre-tightening wheel one 5A.

[0049] The two ends of the wheel shaft of the glue rolling wheel 6 are respectively connected to the two mounting plates 1A and are located directly above the glue tank 14.

[0050] The glue scraping wheel set 8 includes a first glue scraping wheel 8A, a second glue scraping wheel 8B and a second tightening device 8C. Both ends of the axle of the first glue scraping wheel 8A are respectively connected to two mounting plates 1A. Both ends of the axle of the second glue scraping wheel 8B are respectively connected to waist-shaped holes 1A1 on two mounting plates 1A. Both ends of the axle of the second glue scraping wheel 8B can be adjusted in the waist-shaped holes 1A1 on two mounting plates 1A so that the second glue scraping wheel 8B approaches the first glue scraping wheel 8A. The second tightening device 8C is connected to the mounting plate 1A and is used to tighten the axle of the second glue scraping wheel 8B in the direction of the first glue scraping wheel 8A.

[0051] Both ends of the axle of the pre-tightening gravity wheel 9 are respectively placed in strip-shaped vertical grooves 1A3 of two mounting plates 1A, and the axle of the pre-tightening gravity wheel 9 can move freely up and down in the strip-shaped vertical grooves 1A3. The strip-shaped vertical grooves 1A3 penetrate through the top of the mounting plate 1A.

[0052] Both ends of the axle of the gravity wheel support wheel 10 are respectively connected to two mounting plates 1A.

[0053] The wire pay-off rack 2, the lead sleeve 4, the pre-tightening wheel set 5, the glue rolling wheel 6, the lead fork 7, the glue scraping wheel set 8, the pre-tightening gravity wheel 9 and the gravity wheel support wheel 10 are arranged in sequence from front to back.

[0054] In this embodiment, as Figure 3 shown, a vertical opening groove 2A is formed at the top end of the wire pay-off rack 2. The vertical opening groove 2A penetrates through the top of the wire pay-off rack 2. A lateral opening groove 2B is formed on the side surface of the wire pay-off rack 2. The lateral opening groove 2B penetrates through the side surface of the wire pay-off rack 2.

[0055] There are multiple groups of the wire pay-off racks 2. Each group of wire pay-off racks 2 includes two symmetrically arranged wire pay-off racks 2. The heights of the bottoms of the vertical opening grooves 2A of each group of wire pay-off racks 2 are different. The heights of the bottoms of the lateral opening grooves 2B of each group of wire pay-off racks 2 are different.

[0056] Both ends of the reel in the carbon fiber coil 3 are respectively connected to the vertical opening groove 2A or the lateral opening groove 2B in two symmetrically arranged wire pay-off racks 2. The reel adopts a rolling shaft 13. Two reels of the carbon fiber coil 3 are installed on each wire pay-off rack 2.

[0057] The wire pay-off rack 2 is used to install the reel of the carbon fiber coil 3. The design of the opening groove facilitates the loading and unloading of the reel of the carbon fiber 3A. The height differences of the opening grooves of the three groups of wire pay-off racks 2 make the heights of the lead-out positions of the carbon fiber coils 3 different, avoiding the entanglement of the carbon fiber 3A during the binding process.

[0058] In this embodiment, the first pre-tightening wheel 5A, the second pre-tightening wheel 5B, the first glue scraping wheel 8A, the second glue scraping wheel 8B and the gravity wheel support wheel 10 all adopt rolling shafts 13.

[0059] As Figure 4 shown, the rolling shaft 13 is a rotating component of the carbon fiber device. The rolling shaft 13 includes a wheel shaft 13A, a sleeve 13B, a cover plate 13C, a ball bearing 13D, and bolts. The sleeve 13B is rotatably connected to the wheel shaft 13A through the ball bearing 13D, and the cover plate 13C is connected to the end face of the sleeve 13B through bolts. There are threaded holes on the end face of the wheel shaft 13A, and the threaded holes of the wheel shaft 13A are tightly connected to the mounting plate 1A through bolts.

[0060] In this embodiment, as Figure 7-8 shown, the first tightening device 5C and the second tightening device 8C have the same structure, including a threaded block 5C1 and a tightening bolt 5C2. The threaded block 5C1 is welded to the mounting plate 1A, and the tightening bolt 5C2 is threadedly connected to the threaded through hole of the threaded block 5C1, and the end of the bolt rod of the tightening bolt 5C2 is used to tighten the wheel shaft of the second pre-tightening wheel 5B or the wheel shaft of the second rubber scraping wheel 8B. When loading the carbon fiber 3A, loosen the tightening bolt 5C2, introduce the carbon fiber 3A between the two rolling shafts (between the first pre-tightening wheel 5A and the second pre-tightening wheel 5B, or between the first rubber scraping wheel 8A and the second rubber scraping wheel 8B), and then tighten the tightening bolt 5C2 to achieve the performance of the pre-tightening wheel set 5 and the rubber scraping wheel set 8.

[0061] In this embodiment, as Figure 5 and Figure 6 shown, the rubber rolling wheel 6 and the pre-tightening gravity wheel 9 include a rolling shaft 13 and a hollow barrel 6A welded to the outside of the sleeve in the rolling shaft. The threaded hole at the end of the wheel shaft of the rubber rolling wheel 6 is tightly connected to the mounting plate 1A through bolts.

[0062] The main function of the rubber rolling wheel 6 is to paste the glue in the glue tank 14 on the surface of the rolling wheel 6 by rolling. The carbon fiber 3A slides across the upper side of the rolling wheel 6 and adheres to the glue. Therefore, the rolling wheel 6 needs to be as light as possible (easy to be pulled by the carbon fiber 3A). Therefore, a 2mm steel plate is welded to the outside of the rolling shaft 13 to form a hollow barrel 6A (to ensure sealing and prevent the glue from penetrating into the hollow barrel 6A during the rubber rolling process).

[0063] The main function of the pre-tightening gravity wheel 9 is to increase the tension when the carbon fiber 3A is tied to the rotor. Therefore, the gravity wheel needs to be as heavy as possible. A 20mm steel plate is welded to the outside of the rolling shaft (sealing is not required) to form a hollow barrel 6A. A U-shaped groove (i.e., a strip-shaped vertical groove 1A3) is opened at the position on the main bracket 1 where the gravity wheel is installed to ensure that the gravity wheel can move freely upward when the carbon fiber 3A drags the gravity wheel.

[0064] In this embodiment, as Figure 9 shown, the glue tank 14 is welded to the main bracket 1, and the front side and the rear side of the glue tank 14 are both inclined surface structures 14A.

[0065] The glue tank 14 is welded by stainless steel thin steel plates and is mainly used to hold the glue required for carbon fiber 3A. The inclined plane structures 14A on both sides of the glue tank 14 facilitate the free flow of the glue scraped off by the glue scraping wheel set 8 back to the bottom of the glue tank 14, making it convenient for the glue rolling wheel 6 to dip into the glue and reducing glue waste.

[0066] In this embodiment, as Figure 10 shown, the lead fork 7 includes a fork rod 7A (round steel) and 7 fork heads 7B (2mm round steel). The fork rod 7A is welded between two mounting plates 1A, and 7 equally spaced fork heads 7B are welded in the middle of the fork rod 7A. A carbon fiber 3A passes through between adjacent fork heads 7B.

[0067] The structure of the lead fork 7 is to evenly weld 2mm round steel on the round steel (ensuring that the carbon fibers 3A of different trays will not be twisted during the binding process, and the carbon fibers 3A can reduce the distance between them through the lead fork 7), and finally welded to the mounting plate 1A of the main bracket 1.

[0068] In this embodiment, as Figure 11 shown, a wire passing cylinder 11 is also fixedly connected to the rear end of the main bracket 1. The wire passing cylinder 11 is provided with a strip-shaped wire passing through hole, and 6 carbon fibers 3A all pass through the strip-shaped wire passing through hole to limit the overall width. In this embodiment, a plurality of circular through holes 1A2 for installing the first pre-tightening wheel 5A, the glue rolling wheel 6, the first glue scraping wheel 8A, and the gravity wheel support wheel 10 are provided on the mounting plate 1A. A plurality of waist-shaped holes 1A1 for installing the second pre-tightening wheel 5B and the second glue scraping wheel 8B are provided on the mounting plate 1A. A strip-shaped vertical groove 1A3 for installing the pre-tightening gravity wheel 9 is provided on the mounting plate 1A.

[0069] The main bracket 1 is the main supporting and fixing part of the carbon fiber 3A binding device, and all the above-mentioned components are installed and fixed on the main bracket 1.

[0070] The main structure of the pre-tightening wheel set 5 consists of a first tightening device 5C and two sets of rolling shafts. The rolling shaft mounting hole on the main bracket 1 close to the first tightening device 5C is a waist-shaped hole 1A1, ensuring that this rolling shaft can move axially to achieve the pre-tightening function of the carbon fiber 3A; its function is to increase the pre-tightening force on the carbon fiber 3A, ensure that the carbon fiber 3A gives enough pressure to the glue rolling wheel 6 when passing through the glue rolling wheel 6, and ensure that the carbon fiber 3A can drive the glue rolling wheel 6 to rotate when passing through the glue rolling wheel 6. The surface of the glue rolling wheel 6 is sticky with glue, so as to achieve the purpose of dipping a small amount of glue on the carbon fiber 3A.

[0071] The main structure of the glue scraping wheel set 8 is basically the same as that of the pre-tightening wheel set. It consists of the second tightening device 8C and two sets of rolling shafts. The rolling shaft mounting hole on the main bracket 1 near the second tightening device 8C is an oval hole 1A1, ensuring that this rolling shaft can move axially to achieve the glue scraping function for sizing the carbon fiber 3A. Its main function is to scrape off the excessive glue on the sized carbon fiber 3A. When the carbon fiber 3A passes through the glue scraping wheel set 8, it needs to enter from the lower side upwards to ensure that the scraped glue can smoothly drip into the glue tank 14 (if it enters from the upper side, the scraped glue will remain between the two sets of rolling shafts, which is equivalent to the carbon fiber 3A being re-sized here, weakening the glue scraping effect).

[0072] The lead holes are composed of 6 rubber sleeves (i.e., lead sleeves 4) with a length of about 20 mm. Their main function is to align the carbon fibers 3A at different heights and in different directions to a fixed position, ensuring that the carbon fibers 3A will not be twisted together during the binding process of the carbon fiber 3A.

[0073] The gravity wheel support wheel 10 consists of two sets of rolling shafts (one set of rolling shafts is shared with the glue scraping wheel set 8). Its main function is to support the pre-tightening gravity wheel 9 during the binding process of the carbon fiber 3A to facilitate adding an initial tension to the carbon fiber 3A bound to the rotor.

[0074] Note: The reel of the carbon fiber coil 3 and the workpiece to be bound 12 (rotor) are parts of non-patented tooling; the traction force for binding the carbon fiber 3A is provided by the workpiece to be bound 12 rotating on the right side. There are 6 reels of the carbon fiber coil 3 in this embodiment, all at different heights. For the direction of the carbon fiber 3A unrolled from the carbon fiber coils 3 on the 6 reels, refer to Figure 1 and Figure 2 。

[0075] This patent successfully solves the above problems: First, optimize the sizing scheme of the carbon fiber 3A so that the carbon fiber 3A passes above the glue rolling wheel 6, driving the glue rolling wheel 6 to rotate. The surface of the glue rolling wheel 6 is sticky, and the carbon fiber moving on the glue rolling wheel 6 only contacts the glue stuck on the glue rolling wheel 6 (to ensure that the glue rolling wheel 6 can rotate following the carbon fiber 3A, a pre-tightening wheel set 5 is set in front of the glue rolling wheel 6), achieving the purpose of reducing the glue content of the carbon fiber 3A, and adding the structure of the glue scraping wheel set 8 before binding to the rotor to further reduce the glue content of the carbon fiber. Second, set the lead holes (lead sleeves 4) and the lead fork 7 behind the wire pay-off rack 2 and after the sizing is completed to ensure that the carbon fibers 3A from different reels will not be twisted during the binding process, and the carbon fibers 3A passing through the lead fork 7 can reduce the distance between the carbon fibers (about 2 mm). Third, increase the pre-tightening force before binding the carbon fiber 3A to the rotor, design the structure of the pre-tightening gravity wheel 9 to ensure that the carbon fiber 3A is straightened when bound to the rotor, and finally ensure the binding strength at the end of the rotor.

[0076] The protection scope of this patent includes but is not limited to the above embodiments. The protection scope of this patent shall be subject to the claims, and any substitutions, deformations, and improvements that are easily conceivable by those skilled in the art to this technology shall fall within the protection scope of this patent.

Claims

1. A tool for directly tying carbon fiber on a workpiece, characterized in that: It includes a main support, a pay-off frame, a pre-tightening wheel set, a rubber rolling wheel, a lead fork, a rubber scraping wheel set, a pre-tightening gravity wheel and a gravity wheel supporting wheel; The main bracket is connected to a plurality of pay-off racks for fixing carbon fiber coils, and the main bracket is also fixedly connected to a plurality of lead sleeves arranged side by side, each lead sleeve is provided with a lead hole, and the left and right sides of the main bracket are fixedly connected to mounting plates, a glue groove is provided at the bottom between the two mounting plates, and a lead fork is connected between the two mounting plates; The pre-tightening wheel assembly comprises a pre-tightening wheel 1, a pre-tightening wheel 2 and a tightening device 1, the axle of the pre-tightening wheel 1 is connected to the mounting plate, the axle of the pre-tightening wheel 2 is connected to the waist-shaped hole on the mounting plate, the axle of the pre-tightening wheel 2 can be adjusted in the waist-shaped hole on the mounting plate so that the pre-tightening wheel 2 is close to the pre-tightening wheel 1, and the tightening device 1 is connected to the mounting plate and is used to tighten the axle of the pre-tightening wheel 2 in the direction where the pre-tightening wheel 1 is located; The axle of the rubber rolling wheel is connected to the mounting plate and is located directly above the rubber groove; The rubber scraping wheel assembly comprises a rubber scraping wheel 1, a rubber scraping wheel 2 and a tightening device 2, the wheel axle of the rubber scraping wheel 1 is connected to the mounting plate, the wheel axle of the rubber scraping wheel 2 is connected to the waist-shaped hole on the mounting plate, the wheel axle of the rubber scraping wheel 2 can be adjusted in the waist-shaped hole on the mounting plate so that the rubber scraping wheel 2 is close to the rubber scraping wheel 1, and the tightening device 2 is connected to the mounting plate and is used to tighten the wheel axle of the rubber scraping wheel 2 in the direction where the rubber scraping wheel 1 is located; The axle of the preloaded gravity wheel is placed in the strip-shaped vertical groove of the mounting plate and the axle of the preloaded gravity wheel can freely move up and down in the strip-shaped vertical groove, and the strip-shaped vertical groove runs through the top of the mounting plate; The wheel axle of the gravity wheel supporting wheel is connected to the mounting plate; The pay-off frame, the lead sleeve, the pre-tightening wheel group, the rubber rolling wheel, the lead fork, the rubber scraping wheel group, the pre-tightening gravity wheel and the gravity wheel supporting wheel are arranged in sequence from front to back.

2. The tooling for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: A vertical opening groove is formed on the top of the pay-off frame, and the vertical opening groove runs through the top of the pay-off frame. A lateral opening groove is formed on the side of the pay-off frame, and the lateral opening groove runs through the side of the pay-off frame. There are multiple groups of pay-off frames, each group of pay-off frames includes two symmetrically arranged pay-off frames, the bottom of the vertical opening slots of each group of pay-off frames are at different heights, and the bottom of the lateral opening slots of each group of pay-off frames are at different heights; The two ends of the material tray in the carbon fiber coil are respectively connected to the vertical opening grooves or the lateral opening grooves in two symmetrically arranged pay-off frames.

3. The tool for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: The mounting plate is provided with a plurality of circular through holes for mounting a pre-tensioning wheel 1, a rubber rolling wheel, a rubber scraping wheel 1 and a gravity wheel supporting wheel, the mounting plate is provided with a plurality of waist-shaped holes for mounting a pre-tensioning wheel 2 and a rubber scraping wheel 2, and the mounting plate is provided with a strip-shaped vertical groove.

4. The tool for directly tying carbon fiber on a workpiece according to claim 3, characterized in that: The preload wheel 1, preload wheel 2, rubber scraper wheel 1, rubber scraper wheel 2 and gravity wheel support wheel all use rolling shafts, and the rolling shaft includes a wheel axle and a sleeve, and the sleeve is rotatably connected to the wheel axle through a bearing; the end face of the wheel axle has a threaded hole, and the threaded hole of the wheel axle is locked and connected to the mounting plate through a bolt.

5. The tool for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: The first and second tightening devices include a threaded block and a bolt. The threaded block is fixedly connected to the mounting plate. The bolt is threadedly connected in the threaded through hole of the threaded block. The bolt rod end of the bolt is used to tighten the axle of the second pre-tightening wheel or the axle of the second scraper wheel.

6. The tool for directly tying carbon fiber on a workpiece according to claim 4, characterized in that: The rubber rolling wheel and the preloaded gravity wheel comprise a rolling shaft and a hollow barrel fixedly connected to the outer side of a sleeve in the rolling shaft; the wheel shaft end of the rubber rolling wheel is locked and connected to a mounting plate via bolts.

7. The tool for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: The glue groove is fixedly connected to the main bracket, and the front side and the rear side of the glue groove are both inclined structures.

8. The tool for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: The lead fork comprises a fork rod and a plurality of fork heads, wherein the fork rod is fixedly connected between two mounting plates, and a plurality of fork heads distributed at intervals are fixedly connected to the middle of the fork rod.

9. The tool for directly tying carbon fiber on a workpiece according to claim 1, characterized in that: The rear end of the main support is also fixedly connected to a wire passing barrel, and a strip-shaped wire passing through hole is provided on the wire passing barrel.

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