A carbon fiber widening yarn cutting device

Abstract

The present invention provides a carbon fiber widening yarn cutting device, which solves the problem that the existing automated cutting equipment is difficult to keep the ribbon-like raw materials in a tensioned and straight state during operation, which is not conducive to the cutting work. The present invention uses a pressure sensor to monitor the tension of the carbon fiber widening yarn, and integrates the pressure sensor into the guide roller mechanism, so that the spatial structure of the device can be greatly simplified, and the distance between the guide roller mechanism and the cutting mechanism can be greatly shortened, reducing the tension duration of the carbon fiber widening yarn before cutting. Moreover, the pressure sensor and the controller can dynamically adjust the speed difference between the first servo motor and the traction drive machine in real time, so that the tension strength of the carbon fiber widening yarn can always be kept constant, so that the material properties of the cut carbon fiber widening yarn are greatly reduced by the influence of long-term tension, and the quality performance of the cut carbon fiber widening yarn is improved.

Description

Technical Field

[0001] The invention relates to the field of carbon fiber stretched yarn cutting equipment, in particular to carbon fiber stretched yarn cutting equipment. Background Art

[0002] In the field of carbon fiber expanded yarn processing, short-cut carbon fiber expanded yarn is used to combine with corresponding resins to prepare corresponding short-cut boards. This kind of board has isotropic mechanical properties and a certain distribution pattern on the surface texture. It is usually used to make the surface layer of luggage, sports equipment, automobiles and other parts.

[0003] Usually, this kind of carbon fiber widening wire is cut into corresponding lengths manually. This cutting method has low cutting efficiency and high technical requirements on workers. In addition, when workers cut the widening wire, due to the limitations of process conditions, the distance between their hands and the cutter is close, which is prone to safety accidents.

[0004] Therefore, it is necessary to design an automated cutting equipment to replace manual cutting of ribbon-like materials such as carbon fiber widening yarn. The current cutting equipment only has a wire release system, a traction system, and a cutting system. When in use, it is difficult to adjust the tensioning strength of the ribbon-like materials in real time. Relying solely on the traction system to pull the ribbon-like materials forward will make it difficult for the ribbon-like materials to always remain tensioned and straight during the movement, which is not conducive to the cutting work. Summary of the invention

[0005] In order to solve the problem in the background technology that the existing automatic cutting equipment is difficult to keep the ribbon materials in a tensioned and straight state during operation, which is not conducive to the cutting work, the present invention proposes a carbon fiber widening yarn cutting device.

[0006] The technical solution of the present invention is: a carbon fiber widening yarn cutting device, comprising a frame, a horizontally arranged mounting plate is fixed on the top of the frame, a vertically arranged discharge end bracket and a traction end bracket are fixed on the mounting plate, and the traction end bracket is located on the right side of the discharge end bracket;

[0007] A first servo motor and a guide roller mechanism are fixedly arranged on the unloading end bracket, a carbon fiber raw yarn material disc is arranged on the output shaft of the first servo motor, and a carbon fiber widening yarn is wound in the carbon fiber raw yarn material disc;

[0008] The guide roller mechanism comprises a plurality of guide rollers spaced apart from each other and at least one tension roller, wherein the tension roller is located between the plurality of guide rollers spaced apart from each other, and a pressure sensor is provided on the tension roller, and the pressure sensor is used to detect the pressure exerted by the carbon fiber widening yarn on the tension roller;

[0009] The traction end bracket is provided with a traction roller mechanism and a traction drive mechanism for driving the traction roller mechanism to rotate, and the traction drive mechanism is transmission-connected with the traction roller mechanism;

[0010] A cutting mechanism is also fixed on the traction end bracket, and the cutting mechanism is located on the right side of the traction roller mechanism;

[0011] The carbon fiber widening yarn passes through the first guide roller, the tension roller and the second guide roller in a "X" shape and then passes through the traction roller mechanism;

[0012] The first servo motor, the annular pressure sensor, the traction drive mechanism and the cutting mechanism are respectively connected to the controller for control. The pressure sensor and the controller cooperate to adjust the speed difference between the first servo motor and the traction drive mechanism.

[0013] Preferably, a telescopic mechanism which is vertically arranged and adjustable in length up and down is provided on the traction end bracket, and the movable end of the telescopic mechanism is fixedly connected to the traction drive mechanism;

[0014] The traction roller mechanism includes a traction roller and a driven roller. The mandrel of the traction roller is fixedly connected to the output shaft of the traction drive mechanism. The mandrel of the driven roller is vertically fixedly connected to the traction end bracket. The driven roller is located directly below the traction roller.

[0015] The telescopic mechanism is used to adjust the gap thickness between the traction roller and the driven roller.

[0016] Preferably, a second guide groove plate is fixedly provided on the traction end bracket, a second guide groove which is transparent on the left and right and open on the top is provided on the upper part of the second guide groove plate, and the second guide groove plate is located between the traction roller mechanism and the cutting mechanism;

[0017] The carbon fiber widening wire between the traction roller mechanism and the cutting mechanism slides through the second guide groove in a horizontal state, and the bottom of the carbon fiber widening wire in the second guide groove is in sliding contact with the groove bottom in the second guide groove.

[0018] Preferably, the guide roller mechanism comprises a vertically arranged guide roller mounting plate, the guide roller mounting plate is detachably fixedly connected to the unloading end bracket, and a first guide roller, a tension roller and a second guide roller extending in the front-rear direction are arranged on the guide roller mounting plate in sequence from left to right;

[0019] The pressure sensor arranged on the tension roller is an annular pressure sensor, the annular pressure sensor is fixedly sleeved on the core shaft of the tension roller, and the annular pressure sensor is fixedly arranged on the guide roller mounting plate;

[0020] The core shafts of the first guide roller and the second guide roller are both vertically fixedly connected to the guide roller mounting plate, the first guide roller and the second guide roller are both staggered above and below the tension roller, and the first guide roller and the second guide roller are both located below the tension roller.

[0021] Preferably, a guide slot bracket extending to the left is fixedly provided on the traction end bracket, a first guide slot plate is fixedly provided on the top of the guide slot bracket, and a first guide slot with an upper opening and left-right transparent is provided on the upper part of the first guide slot plate;

[0022] The first guide groove plate is located between the guide roller mechanism and the traction pair roller mechanism, and the carbon fiber widening wire between the guide roller mechanism and the traction pair roller mechanism slides through the first guide groove plate.

[0023] Preferably, the first guide roller and the second guide roller are both located below the tension roller;

[0024] The top of the left end of the first guide groove plate is provided with an arc chamfer extending from the right to the bottom and from the top to the bottom. The arc chamfer at the left end of the first guide groove plate abuts against the bottom of the second guide roller so that the carbon fiber widening wire bypassing the second guide roller can directly enter the first guide groove.

[0025] Preferably, the bottom of the carbon fiber widening wire in the first guide groove is in sliding contact with the groove bottom of the first guide groove.

[0026] Preferably, the guide roller mounting plate is provided with a waist-shaped hole extending in the up and down direction, and a fastening bolt for fixing the guide roller mounting plate to the discharge end bracket is passed through the waist-shaped hole, and the waist-shaped hole and the fastening bolt cooperate to adjust the up and down height of the guide roller mounting plate.

[0027] Preferably, the output shaft of the first servo motor is fixedly connected to the rear end of the air inflation shaft, and the carbon fiber raw yarn disc is sleeved on the air inflation shaft.

[0028] Preferably, a tray is fixedly provided on the traction end bracket, a collecting device is placed on the tray, the collecting device is a box structure with an upper opening, and the collecting device is located directly below the cutting mechanism.

[0029] Advantages of the present invention: The device uses a pressure sensor to monitor the tensioning force of the carbon fiber widening wire, and integrates the pressure sensor into the guide roller mechanism, so that the spatial structure of the device can be greatly simplified, occupying less space, and the distance between the guide roller mechanism and the cutting mechanism can be greatly shortened, reducing the tensioning time of the carbon fiber widening wire before cutting.

[0030] Moreover, the pressure sensor and the controller can cooperate to dynamically adjust the speed difference between the first servo motor and the traction drive motor in real time, so that the tensioning strength of the carbon fiber widening yarn can always be kept constant, and the material properties of the cut carbon fiber widening yarn are greatly reduced by the influence of long-term tensioning, thereby improving the quality performance of the cut carbon fiber widening yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure from the main viewing angle of Example 1;

[0033] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from a rear-view angle;

[0034] Figure 3 for Figure 1 A schematic diagram of the structure of the cutter mechanism in the figure from an upward angle;

[0035] Figure 4 for Figure 3 A schematic diagram of the structure of the upper cutter and the lower cutter in FIG.

[0036] In the figure, 1, frame, 2, mounting plate, 3, wire release mounting seat, 4, air expansion shaft, 5, carbon fiber raw wire disc, 6, servo motor mounting seat, 7, first servo motor, 8, guide roller mounting plate, 9, first guide roller, 10, tension roller, 11, second guide roller, 12, first guide groove plate, 13, first three-axis cylinder, 14, servo motor mounting plate, 15, second three-axis cylinder, 16, traction roller, 17, driven roller, 18, first Two guide groove plates, 19. Three-axis cylinder mounting plate, 20. Upper cutter mounting seat, 21. Upper cutter, 2101. Upper cutter substrate, 2102. Upper blade, 22. Lower cutter, 2201. Lower cutter substrate, 2202. Lower blade, 23. Carbon fiber widening wire, 24. Motor mounting plate, 25. Guide roller fixing plate, 26. Mounting support, 27. Second servo motor, 28. Square bracket, 29. Tray, 30. Collection device. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1: A carbon fiber widening yarn cutting device, such as Figure 1As shown, it includes a frame 1, a horizontally arranged mounting plate 2 is fixed on the top of the frame 1, a vertically arranged discharge end bracket and a traction end bracket are fixed on the mounting plate 2, and the traction end bracket is located on the right side of the discharge end bracket.

[0039] The unloading end bracket includes: Figure 1 and Figure 2 The wire release mounting seat 3 and the servo motor mounting seat 6 are vertically arranged as shown.

[0040] The wire-releasing mounting seat 3 is an L-shaped plate structure, the bottom of the wire-releasing mounting seat 3 is connected to the mounting large plate 2 by bolts, and a front-to-back transparent slot hole is opened on the vertical plate of the wire-releasing mounting seat 3.

[0041] The servo motor mounting seat 6 is fixed on the rear side of the vertical plate of the wire release mounting seat 3 by bolts, and a first servo motor 7 is fixed on the servo motor mounting seat 6. The front end of the output shaft of the first servo motor 7 passes through the slot, and the front end of the output shaft of the first servo motor 7 is connected to the core shaft of the air inflation shaft 4 through a coupling. The air inflation shaft 4 is provided with a carbon fiber raw silk material disc 5, and the carbon fiber raw silk material disc 5 is wound with a carbon fiber widening wire 23.

[0042] The size of the tensioning force between the air inflation shaft and the carbon fiber precursor material disc 5 can be quickly adjusted through the air inflation shaft, so as to achieve rapid fixing and disassembly of the carbon fiber precursor material disc 5.

[0043] A guide roller mounting plate 8 of a guide roller mechanism which is vertically arranged and extends to the right is provided on the vertical plate of the wire placing mounting seat 3. Figure 2 As shown, the guide roller mounting plate 8 is provided with a waist-shaped hole extending in the up-down direction, and a fastening bolt for fixing the guide roller mounting plate 8 on the discharge end bracket is passed through the waist-shaped hole. The waist-shaped hole and the fastening bolt are used to adjust the up-down height of the guide roller mounting plate 8, thereby realizing the adjustment of the size of the wrap angle of the carbon fiber widening wire 23 when entering the first guide roller 9.

[0044] like Figure 1 As shown, the guide roller mechanism also includes a first guide roller 9, a tension roller 10 and a second guide roller 11 which are arranged on the guide roller mounting plate 8 in sequence from left to right.

[0045] like Figure 1 As shown, an annular pressure sensor is fixedly sleeved on the core shaft of the tension roller 10, and the annular pressure sensor is fixed on the guide roller mounting plate 8; the core shafts of the first guide roller 9 and the second guide roller 11 are vertically fixedly connected to the guide roller mounting plate 8, and the first guide roller 9 and the second guide roller 11 are staggered with the tension roller 10 up and down, and the first guide roller 9 and the second guide roller 11 are both located below the tension roller 10.

[0046] The first servo motor 7 and the annular pressure sensor are both connected to a controller (the controller in this embodiment is a programmable PLC controller).

[0047] A traction roller mechanism and a traction drive mechanism for driving the traction roller mechanism to rotate are arranged on the traction end bracket, and the traction drive mechanism is transmission-connected with the traction roller mechanism.

[0048] Specifically, Figure 1 As shown, the traction end bracket includes a vertically arranged square bracket 28, which is a vertical frame structure with two vertical frames arranged at intervals on the left and right. The top of the square bracket 28 is fixed with a horizontally arranged mounting support 26 by bolts, and the front side of the mounting support 26 is fixed with a motor mounting plate 24 of a T-shaped plate structure by bolts.

[0049] The motor mounting plate 24 is provided with an adjustment slot and an axis slot extending in the up-down direction and being transparent from front to back.

[0050] The rear part of the motor mounting plate 24 is provided with a traction drive mechanism. The traction drive mechanism in this embodiment is as follows: Figure 2 The second servo motor 27 shown in the figure has a bolt slidably inserted into the adjusting groove for connecting the second servo motor 27. The output shaft of the second servo motor 27 is slidably inserted into the shaft groove up and down.

[0051] The front end of the output shaft of the second servomotor 27 is connected to the rear end of the mandrel of the traction roller 16 through a coupling.

[0052] A driven roller 17 is provided directly below the traction roller 16 , and the rear end of the mandrel of the driven roller 17 is fixedly connected to the lower part of the motor mounting plate 24 .

[0053] The traction roller 16 and the driven roller 17 cooperate with each other and pull the carbon fiber widening yarn 23 under the drive of the second servo motor 27 .

[0054] The motor mounting plate 24 is provided with a telescopic mechanism which is vertically arranged and has adjustable lengths up and down, and the telescopic mechanism is used to adjust the gap thickness between the traction roller 16 and the driven roller 17. The telescopic mechanism in this embodiment is as follows Figure 1 and Figure 2 The first three-axis cylinder 13 shown is a stroke-adjustable cylinder, and the cylinder body of the first three-axis cylinder 13 is fixedly connected to the upper part of the motor mounting plate 24 by bolts.

[0055] A bearing is fixedly connected to the lower end of the first three-axis cylinder 13, and the bearing is sleeved on the output shaft of the second servo motor 27. The first three-axis cylinder 13 is control-connected to the controller.

[0056] A cutting mechanism is fixedly provided on the right side of the motor mounting plate 24, and the cutting mechanism is located on the right side of the traction roller mechanism.

[0057] like Figure 1 and Figure 3 As shown, the cutting mechanism includes two three-axis cylinder mounting plates 19 vertically fixed on the right side of the motor mounting plate 24 and spaced apart from each other in the front and rear direction. A second three-axis cylinder 15 is fixed on the right side of the three-axis cylinder mounting plate 19, an upper cutter mounting seat 20 is fixed at the lower end of the second three-axis cylinder 15, and an upper cutter 21 is fixed at the bottom of the upper cutter mounting seat 20.

[0058] like Figure 4 As shown, the upper cutter 21 includes an upper cutter base plate 2101 of an L-shaped plate structure, an upper blade 2102 is fixedly provided on the left side of the upper cutter base plate 2101, and an oblique blade 2102 is provided at the lower end thereof, which is inclined from right to left and from bottom to top.

[0059] The upper cutter base plate 2101 is fixed to the bottom of the upper cutter mounting seat 20 by bolts.

[0060] The cutting mechanism also includes a lower cutting knife 22, such as Figure 4 As shown, the lower cutter 22 includes a lower cutter base plate 2201 of a flat structure and a lower blade 2202 fixed to the right end of the lower cutter base plate 2201. The upper end of the lower blade 2202 is provided with an oblique blade inclined from right to left and from top to bottom.

[0061] The lower cutter base plate 2201 is fixed to the bottom of the second guide groove plate 18 , the lower blade 2202 is located on the right side of the second guide groove plate 18 , and the lower blade 2202 corresponds to the upper blade 2102 up and down.

[0062] A second guide groove which is transparent on the left and right and open on the top is formed on the upper part of the second guide groove plate 18 . The second guide groove plate 18 is located between the traction roller mechanism and the cutting mechanism.

[0063] The carbon fiber stretching wire 23 between the traction roller mechanism and the cutting mechanism slides through the second guide groove in a horizontal state, and the bottom of the carbon fiber stretching wire 23 in the second guide groove is in sliding contact with the groove bottom in the second guide groove.

[0064] In order to guide and adjust the movement state of the carbon fiber widening wire 23 between the guide roller mechanism and the traction roller mechanism, as shown in FIG. Figure 1 As shown, a guide slot bracket extending to the left is fixedly provided on the left side of the motor mounting plate 24, a first guide slot plate 12 is fixedly provided on the top of the guide slot bracket, and a first guide slot which is open on the top and is transparent on the left and right is formed on the upper part of the first guide slot plate 12.

[0065] The first guide groove plate 12 is located between the guide roller mechanism and the traction roller pair mechanism, and the carbon fiber widening wire 23 between the guide roller mechanism and the traction roller pair mechanism slides through the first guide groove plate 12 .

[0066] The top of the left end of the first guide groove plate 12 is provided with an arc chamfer extending from the right to the bottom and from the top to the bottom. The arc chamfer at the left end of the first guide groove plate 12 abuts against the bottom of the second guide roller 11 so that the carbon fiber widening wire 23 bypassing the second guide roller 11 can directly enter the first guide groove.

[0067] The bottom of the carbon fiber widening wire 23 in the first guide groove is in sliding contact with the groove bottom of the first guide groove.

[0068] Tray 29 on the square bracket 28. In order to adjust the upper and lower heights of the tray 29, the square bracket 28 in this embodiment is provided with a tray adjustment hole which is transparent from front to back and extends in the upper and lower directions. A tray fastening bolt is passed through the tray adjustment hole, and the tray fastening bolt is used to fix the tray 29 on the square bracket 28.

[0069] The height adjustment of the tray 29 is achieved by adjusting the upper and lower positions of the tray fastening bolts in the tray adjustment holes.

[0070] A collecting device 30 is placed on the tray 29. The collecting device 30 is a box structure with an upper opening. The collecting device 30 is located directly below the cutting mechanism. The collecting device 30 is used to collect the carbon fiber widening yarn 23 cut by the cutting mechanism.

[0071] The carbon fiber widening yarn 23 passes through the first guide roller 9, the tension roller 10 and the second guide roller 11 in sequence in the shape of a "X" and then passes through the traction roller mechanism.

[0072] The traction drive mechanism and the cutting mechanism are respectively connected to the controller control, and the annular pressure sensor and the controller are used to adjust the speed difference between the first servo motor 7 and the second servo motor 27, so that the carbon fiber stretching wire 23 between the carbon fiber raw wire disc 5 and the traction roller mechanism can always be in a tensioned and straight state, so as to achieve the purpose of constant tension of the carbon fiber stretching wire 23, so as to avoid the carbon fiber stretching wire 23 from bending, falling off, etc. during the movement, which is not conducive to the cutting work and the control of the shape qualification rate after cutting.

[0073] Principle of use: When working, first energize each servo motor and cylinder to reset to the middle position.

[0074] Then, the widened carbon fiber precursor material disc 5 is placed on the corresponding position of the air expansion shaft 4 , and the air expansion shaft 4 is ventilated and tightened to quickly fix the carbon fiber precursor material disc 5 on the air expansion shaft 4 .

[0075] Then, the carbon fiber widening yarn 23 is passed through the first guide roller 9, the tension roller 10, and the second guide roller 11 in an S-shaped order from left to right.

[0076] Then, the carbon fiber widening yarn 23 passes through the first guide groove corresponding to the first guide groove plate 12 .

[0077] Then, the second three-axis cylinder 15 is reset to put the driven second servo motor 27 in a retracted state, so that the carbon fiber widening wire 23 passing through the first guide groove passes through the gap between the traction roller 16 and the driven roller 17.

[0078] Then, the carbon fiber widening wire 23 passing through the middle of the traction roller 16 and the driven roller 17 is passed through the second guide groove of the second guide groove plate 18 and between the upper cutter 21 and the lower cutter 22 in sequence. At this time, the second three-axis cylinder 15 drives the upper cutter 21 to be in a retracted state, completing the preparation for threading.

[0079] Then, the first three-axis cylinder 13 is ventilated and pressed down, so that the traction roller 16 and the driven roller 17 are tightly squeezed, and at the same time, the second servo motor 27 drives the traction roller 16 and the driven roller 17 to rotate, completing the traction of the carbon fiber widening yarn 23.

[0080] Then, the second three-axis cylinder 15 drives the upper cutter 21 to move downward, and cooperates with the lower cutter 22 to complete the short cutting of the carbon fiber widening wire 23. The cut carbon fiber widening wire 23 falls into the collecting device 30, thereby completing the short cutting process of the entire carbon fiber widening wire 23.

[0081] During the entire filament cutting process, the annular pressure sensor installed on the core shaft of the tension roller 10 monitors the tensioning force of the carbon fiber widening yarn 23 itself represented by the pressure applied by the carbon fiber widening yarn 23 to the tension roller 10 in real time, and cooperates with the controller to adjust the speed difference between the first servo motor 7 and the traction drive machine in real time (if the pressure is too large, the speeds of the first servo motor 7 and the second servo motor 27 are adjusted at the same time to reduce the speed difference between the first servo motor 7 and the second servo motor 27 and balance the tensioning strength of the carbon fiber widening yarn 23; conversely, if the pressure is too small, the speeds of the first servo motor 7 and the second servo motor 27 are increased at the same time to increase the speed difference between the first servo motor 7 and the second servo motor 27), so that the carbon fiber widening yarn 23 between the carbon fiber raw yarn disc 5 and the traction roller mechanism can always be in a tensioned and straight state, so as to achieve the purpose of constant tension of the carbon fiber widening yarn 23, so as to avoid bending, falling off, etc. of the carbon fiber widening yarn 23 during movement, which is not conducive to the cutting work and the control of the shape qualification rate after cutting.

[0082] The device adopts an annular pressure sensor to monitor the tensioning force of the carbon fiber stretching wire 23, and integrates the annular pressure sensor into the guide roller mechanism, so that the spatial structure of the device can be greatly simplified, occupying less space, and the distance between the guide roller mechanism and the cutting mechanism can be greatly shortened, thereby reducing the tensioning time of the carbon fiber stretching wire 23 before cutting, and the tensioning strength of the carbon fiber stretching wire 23 can always be kept constant, so that the material properties of the cut carbon fiber stretching wire 23 are greatly reduced by the influence of long-term tension, thereby improving the quality performance of the cut carbon fiber stretching wire 23.

[0083] Embodiment 2: A carbon fiber widening yarn cutting device. In this embodiment, the first guide roller 9 and the second guide roller 11 are both located above the tension roller 10, and in this embodiment, the first guide groove plate 12 no longer rests on the second guide roller 11. The other structures are the same as those in Embodiment 1.

[0084] Embodiment 3: A carbon fiber widening yarn cutting device, in this embodiment, the guide roller mechanism includes four guide rollers arranged at intervals on the left and right and two tension rollers 10, the two tension rollers 10 are arranged at intervals between the four guide rollers, and an annular pressure sensor is provided on one of the tension rollers 10. The other structures are the same as those in Embodiment 1.

[0085] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is limited by the appended claims rather than the above description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A carbon fiber widening yarn cutting device, characterized in that: The machine comprises a frame (1), the top of which is fixedly provided with a horizontally arranged mounting plate (2), the mounting plate (2) being fixedly provided with a vertically arranged discharge end bracket and a traction end bracket, wherein the traction end bracket is located on the right side of the discharge end bracket; A first servo motor (7) and a guide roller mechanism are fixedly mounted on the unloading end bracket, a carbon fiber raw yarn disc (5) is mounted on the output shaft of the first servo motor (7), and a carbon fiber widening yarn (23) is wound inside the carbon fiber raw yarn disc (5); The guide roller mechanism comprises a plurality of guide rollers arranged at intervals on the left and right and at least one tension roller (10), wherein the tension roller (10) is located between the plurality of guide rollers arranged at intervals on the left and right, and a pressure sensor is provided on the tension roller (10), and the pressure sensor is used to detect the pressure applied by the carbon fiber widening yarn (23) to the tension roller (10); The traction end bracket is provided with a traction roller mechanism and a traction drive mechanism for driving the traction roller mechanism to rotate, and the traction drive mechanism is transmission-connected with the traction roller mechanism; A cutting mechanism is also fixed on the traction end bracket, and the cutting mechanism is located on the right side of the traction roller mechanism; The carbon fiber widening yarn (23) is in the shape of a figure "X" and passes through the first guide roller (9), the tension roller (10) and the second guide roller (11) in sequence, and then passes through the traction roller mechanism; The first servo motor (7), the pressure sensor, the traction drive mechanism and the cutting mechanism are respectively connected to the controller for control, and the pressure sensor and the controller cooperate to adjust the speed difference between the first servo motor (7) and the traction drive mechanism; A second guide groove plate (18) is fixedly provided on the traction end bracket, a second guide groove which is transparent on the left and right and open on the top is provided on the upper part of the second guide groove plate (18), and the second guide groove plate (18) is located between the traction roller mechanism and the cutting mechanism; The carbon fiber widening wire (23) between the traction roller mechanism and the cutting mechanism slides through the second guide groove in a horizontal state, and the bottom of the carbon fiber widening wire (23) in the second guide groove is in sliding contact with the groove bottom in the second guide groove; The guide roller mechanism comprises a guide roller mounting plate (8) arranged vertically, the guide roller mounting plate (8) being detachably fixedly connected to the unloading end bracket, and the guide roller mounting plate (8) being provided with a first guide roller (9), a tension roller (10) and a second guide roller (11) extending in the front-rear direction in sequence from left to right; The pressure sensor provided on the tension roller (10) is an annular pressure sensor, the annular pressure sensor is fixedly sleeved on the core shaft of the tension roller (10), and the annular pressure sensor is fixedly provided on the guide roller mounting plate (8); The core shafts of the first guide roller (9) and the second guide roller (11) are both vertically fixedly connected to the guide roller mounting plate (8); the first guide roller (9) and the second guide roller (11) are both arranged to be offset up and down from the tension roller (10); and the first guide roller (9) and the second guide roller (11) are both located below the tension roller (10).

2. A carbon fiber widening yarn cutting device as claimed in claim 1, characterized in that: A telescopic mechanism which is vertically arranged and adjustable in length up and down is provided on the traction end bracket, and the movable end of the telescopic mechanism is fixedly connected to the traction drive mechanism; The traction roller mechanism comprises a traction roller (16) and a driven roller (17), the core shaft of the traction roller (16) is fixedly connected to the output shaft of the traction drive mechanism, the core shaft of the driven roller (17) is vertically fixedly connected to the traction end bracket, and the driven roller (17) is located directly below the traction roller (16); The telescopic mechanism is used to adjust the gap thickness between the traction roller (16) and the driven roller (17).

3. The carbon fiber widening yarn cutting device according to claim 1, characterized in that: A guide slot bracket extending to the left is fixedly provided on the traction end bracket, a first guide slot plate (12) is fixedly provided on the top of the guide slot bracket, and a first guide slot with an upper opening and being transparent on both sides is provided on the upper part of the first guide slot plate (12); The first guide groove plate (12) is located between the guide roller mechanism and the traction roller pair mechanism, and the carbon fiber widening wire (23) between the guide roller mechanism and the traction roller pair mechanism slides through the first guide groove plate (12).

4. A carbon fiber widening yarn cutting device as claimed in claim 3, characterized in that: The first guide roller (9) and the second guide roller (11) are both located below the tension roller (10); The top of the left end of the first guide groove plate (12) is provided with an arc chamfer extending from the right and from the bottom to the top, and the arc chamfer at the left end of the first guide groove plate (12) abuts against the bottom of the second guide roller (11), so that the carbon fiber widening yarn (23) bypassing the second guide roller (11) can directly enter the first guide groove.

5. A carbon fiber widening yarn cutting device as claimed in claim 4, characterized in that: The bottom of the carbon fiber widening wire (23) in the first guide groove is in sliding contact with the groove bottom of the first guide groove.

6. The carbon fiber widening yarn cutting device according to claim 1, characterized in that: The guide roller mounting plate (8) is provided with a waist-shaped hole extending in the up-down direction, and a fastening bolt for fixing the guide roller mounting plate (8) to the material discharging end bracket is passed through the waist-shaped hole. The waist-shaped hole and the fastening bolt cooperate to adjust the up-down height of the guide roller mounting plate (8).

7. A carbon fiber widening yarn cutting device according to any one of claims 1 to 5, characterized in that: The output shaft of the first servo motor (7) is fixedly connected to the rear end of the air expansion shaft (4), and the carbon fiber raw yarn disc (5) is sleeved on the air expansion shaft (4).

8. A carbon fiber widening yarn cutting device according to any one of claims 1 to 5, characterized in that: A tray (29) is fixedly provided on the traction end bracket, a collecting device (30) is placed on the tray (29), the collecting device (30) is a box structure with an upper opening, and the collecting device (30) is located directly below the cutting mechanism.

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