Carbon fiber 45-degree and 90-degree slitting welding machine and manufacturing method thereof

Abstract

The invention relates to the technical field of carbon fiber production, and discloses a carbon fiber 45-degree and 90-degree slitting welding machine and a manufacturing method thereof.The carbon fiber 45-degree and 90-degree slitting welding machine comprises an operation table, an ultrasonic welding machine is installed on the operation table, a welding head is connected to the ultrasonic welding machine through a hydraulic cylinder, and a stabilizing frame is connected to the top of the welding head; the slitting device is used for slitting the carbon fiber one-way belt; and the traction device is used for dragging the carbon fiber one-way belt. Through the arrangement of the slitting device, the slitting device can be driven to operate when the ultrasonic welding machine operates, so that a cutter can automatically perform slitting operation through up-down reciprocating motion; through cooperation of the groove shaft and the sliding shaft, the cutter can rotate by 45 degrees every time the cutter moves upwards, so that the cutter can alternately conduct slitting operation of 45 degrees and 90 degrees, the effect of automatically adjusting the angle for slitting is achieved, the operation step of manually adjusting the angle is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of carbon fiber production, and in particular to a carbon fiber 45-degree and 90-degree slitting and welding machine and a preparation method thereof. Background Art

[0002] Carbon fiber unidirectional tape, also known as unidirectional tape, is a high-strength, lightweight, high-modulus composite material made of carbon fiber bundles arranged unidirectionally through an oriented mechanism. The specific gravity of the unidirectional tape is only 1 / 4 of that of metal materials, but its tensile strength and elastic modulus are more than 5 times higher than that of metal materials of the same weight. The unidirectional tape has a low thermal expansion coefficient and can maintain good dimensional stability under high temperature conditions. The unidirectional tape can be processed using conventional composite material processing technology and can be made into various parts with complex shapes. In order to improve the mechanical strength of some carbon fiber sheets or products, unidirectional tapes will be laid and composite molded. When unidirectional tapes are laid for irregular-shaped products, the unidirectional tapes need to be welded into the corresponding shape in advance, such as welding two sections of unidirectional tapes into an L shape. When welding the two sections of unidirectional tapes, the staff needs to cut them at forty-five degrees and ninety degrees in advance. After cutting, the two ends of the unidirectional tapes are spliced ​​together for welding.

[0003] However, the prior art has the following problems: Prior art requires slitting the unidirectional tape before welding it. During the slitting process, workers need to frequently perform angle positioning because the 45-degree and 90-degree cuts need to be cyclically cut alternately, which results in cumbersome operation and low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a carbon fiber 45 degree, 90 degree slitting and welding machine and a preparation method thereof in order to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a carbon fiber 45-degree and 90-degree slitting and welding machine, comprising: an operating table, an ultrasonic welder is installed on the operating table, a welding head is connected to the ultrasonic welder through a hydraulic cylinder, a stabilizing frame is connected to the top of the welding head, an end of the stabilizing frame away from the welding head is slidably connected to the outer wall of the ultrasonic welder, and a winding frame is connected to the left side of the operating table; a slitting device for slitting carbon fiber unidirectional tape; a traction device for traction carbon fiber unidirectional tape; the slitting device comprises a sliding rod, the sliding rod is slidably installed on the operating table, a groove shaft is rotatably connected to the sliding rod through a bracket, a cutting knife is connected to the bottom end of the groove shaft, a slide frame is connected to the top of the sliding rod, a rotating rod is rotatably installed on the operating table through the bracket, a first roller is connected to the rotating rod, a first gear is connected to the side of the rotating rod away from the slide frame, and a first rack is installed on the stabilizing frame through the bracket.

[0006] Preferably, a slide slot is provided on the slide slot frame, the first roller is slidably connected to the slide slot of the slide slot frame, and the first gear is meshed with the first rack.

[0007] Preferably, two straight grooves are provided on the groove shaft, a curved groove is connected between the bottom ends of the two straight grooves, a right-angle frame is connected to the outer wall of the ultrasonic welder, a sliding shaft is connected to the right-angle frame, and the sliding shaft slides in the two straight grooves and the curved groove when moving.

[0008] Preferably, an inner slide is slidably installed inside the groove shaft, two slots are opened in the curved groove, two ends of the inner slide are respectively located in the two slots of the curved groove, a guide block is connected to the inner slide, the guide block is slidably connected to the curved groove, and the sliding shaft contacts the two ends of the inner slide alternately when moving.

[0009] Preferably, the traction device includes a second rack, the second rack is installed on the front side of the sliding rod, and a ball screw is rotatably installed on the bottom of the operating table through the bracket, and the end of the ball screw close to the sliding rod is connected to the second gear, and the second gear is meshed with the second rack, and a ball slider is slidably installed on the bottom surface of the operating table, and the front side of the ball slider is connected to the shift rack, and a transverse slide groove and a longitudinal slide groove are provided on the operating table, and the first slide block is slidably connected in the transverse slide groove of the operating table, and the shift rack is connected to the first slide block, the top of the first slide block is connected to the first lower clamping plate, and the first upper clamping plate is slidably connected to the first lower clamping plate, and the front end of the first upper clamping plate is connected to the second roller, and the first slot plate and the second slot plate are installed on the operating table.

[0010] Preferably, a threaded groove is provided on the ball screw, a ball is provided on the inner wall of the ball slider and the ball is slidably connected to the threaded groove of the ball screw, the first slot plate is located in front of the transverse slot of the operating table, the second slot plate is located to the right of the longitudinal slot of the operating table, the first slot plate and the second slot plate are respectively provided with parallelogram slots, and the second roller is slidably connected to the parallelogram slot of the first slot plate.

[0011] Preferably, a second slider is slidably connected in the longitudinal slide groove of the operating table, a connecting rod is hinged between the bottom of the second slider and the first slider, a second lower clamp is connected to the top of the second slider, a second upper clamp is slidably connected to the second lower clamp, a rotating head is rotatably installed on the top surface of the second lower clamp and the bottom surface of the second upper clamp respectively, a third roller is connected to the end of the second upper clamp away from the rotating head, and a baffle is connected to the operating table.

[0012] Preferably, the front end of the baffle is provided with an arc angle, the baffle is located on the left side of the two rotating heads, and the third roller is slidably connected to the parallelogram groove of the second groove plate.

[0013] Preferably, a square groove is provided on the operating table, and a flip plate is rotatably installed in the square groove of the operating table, the flip plate is located on the right side of the baffle, and the rear side of the flip plate is connected to a third gear. A third rack and a triangular block are slidably connected to the operating table, the third rack is connected to the triangular block, the third rack is meshed with the third gear, and the triangular block is located on the movement trajectory of the second slider.

[0014] A method for preparing carbon fiber by slitting and welding at 45 and 90 degrees, comprising the following steps: Step 1: Unwinding, install the rolled unidirectional tape on the winding rack; Step 2: Unwinding: Pull out one end of the one-way belt and place it on the operating table, and pull the end to place it on the baffle; Step 3: Cutting, start the ultrasonic welding machine, move the welding head downward, and the cutter moves downward synchronously to cut the unidirectional tape at 90 degrees; Step 4: Traction and welding. The traction device pulls the unidirectional belt to the right for a distance. The cutter adjusts the angle and cuts it at 90 degrees. The traction device tractions again, and the tail end of the previous unidirectional belt is laid together with the head end of the unidirectional belt just cut. The welding head moves down for welding. Step 5: Transfer, use the transfer robot to transfer the welded L-shaped one-way belt to the next process; Step 6: The welding head, slitting device and traction device cooperate to perform cyclic slitting and welding operations.

[0015] The beneficial effects are: 1. The carbon fiber 3D and 4D slitting and welding machine, through the setting of the slitting device, can drive the slitting device to operate when the ultrasonic welder is in operation, so that the cutter can automatically perform slitting operations through up and down reciprocating motion; through the cooperation of the groove shaft and the sliding shaft, the cutter can rotate forty-five degrees each time it moves upward, so that the cutter can alternately perform slitting operations of forty-five degrees and ninety degrees, achieving the effect of automatically adjusting the angle for slitting, reducing the operating steps of manual angle adjustment, and improving work efficiency.

[0016] 2. The carbon fiber degree and degree slitting and welding machine, through the setting of the traction device, enables the first lower clamp and the first upper clamp to pull the unidirectional belt to the right, the two turning heads can pull the unidirectional belt backward and turn it, and the flip plate can drive the unidirectional belt to turn over, so that the 45-degree cuts of the unidirectional belt on the left and the unidirectional belt on the right can fit together, and an L-shaped unidirectional belt is formed after welding, achieving the effect of automatic traction and splicing, and through the cooperation with the ultrasonic welder and the slitting device, the effect of automatic slitting, traction and welding automatic cycle processing is achieved, thereby improving the automation level and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of a slitting device of the present invention; Figure 3 It is a schematic diagram of the sliding rod structure of the present invention; Figure 4 It is a schematic diagram of the slotted shaft structure of the present invention; Figure 5 It is a schematic diagram of the straight slot structure of the present invention; Figure 6 It is a schematic diagram of the curved groove structure of the present invention; Figure 7 It is a schematic diagram of the inner slide structure of the present invention; Figure 8 It is a schematic diagram of the structure of the traction device of the present invention; Fig. 9 It is a schematic diagram of the ball screw structure of the present invention; Fig.10 It is a schematic diagram of the connecting rod structure of the present invention; Fig.11is a schematic diagram of the first slot plate structure of the present invention; Fig.12 is a schematic diagram of the second slot plate structure of the present invention; Fig.13 It is a schematic diagram of the structure of the flip plate of the present invention; Fig.14 It is a schematic diagram of the triangular block structure of the present invention.

[0019] The reference numerals are as follows: 1. operating table; 2. ultrasonic welding machine; 3. welding head; 4. stabilizing frame; 5. winding frame; 6. slitting device; 61. sliding rod; 62. slot shaft; 63. cutting knife; 64. sliding slot frame; 65. first roller; 66. rotating rod; 67. first gear; 68. first rack; 69. right angle frame; 610. sliding shaft; 611. straight slot; 612. curved slot; 613. inner sliding frame; 614. guide block; 7. traction device; 71. second rack; 72. ball screw ; 73, the second gear; 74, the ball slider; 75, the rack; 76, the first slider; 77, the first lower clamping plate; 78, the first upper clamping plate; 79, the second roller; 710, the first slot plate; 711, the connecting rod; 712, the second slider; 713, the second lower clamping plate; 714, the second upper clamping plate; 715, the rotating head; 716, the third roller; 717, the second slot plate; 718, the baffle; 719, the flip plate; 720, the third gear; 721, the third rack; 722, the triangle block. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention. Embodiment 1

[0021] See also Figure 1 - Figure 7A carbon fiber 45-degree and 90-degree slitting and welding machine and a preparation method thereof, comprising: an operating table 1, an ultrasonic welder 2 is installed on the operating table 1, a welding head 3 is connected to the ultrasonic welder 2 through a hydraulic cylinder, the ultrasonic welder 2 is a prior art, and can use the hydraulic cylinder inside it to drive the welding head 3 to move downward, a stabilizing frame 4 is connected to the top of the welding head 3, and the end of the stabilizing frame 4 away from the welding head 3 is slidably connected to the outer wall of the ultrasonic welder 2, and the stabilizing frame 4 moves downward with the welding head 3, which has the effect of enhancing the stability of the welding head 3, and avoids the welding position deviation of the welding head 3 due to the wear of the hydraulic cylinder after long-term use; a winding frame 5 is connected to the left side of the operating table 1; a slitting device 6 is used to slit the carbon fiber unidirectional tape;The slitting device 6 includes a slide bar 61, which is slidably installed on the operating table 1. The slide bar 61 is rotatably connected with a groove shaft 62 through a bracket. The bottom end of the groove shaft 62 is connected to a cutter 63. The top of the slide bar 61 is connected to a slide frame 64. A rotating rod 66 is rotatably installed on the operating table 1 through a bracket. The rotating rod 66 is connected to a first roller 65. The side of the rotating rod 66 away from the slide frame 64 is connected to a first gear 67. A first rack 68 is installed on the stabilizing frame 4 through a bracket. A slide groove is provided on the slide frame 64. The first roller 65 is slidably connected with the slide groove of the slide frame 64. The rotating rod 66 rotates one circle to drive the slide frame 64 to move up and down once through the first roller 65. The first gear 67 is meshed with the first rack 68. When the fixed frame 4 moves, it drives the first rack 68 to move synchronously. When the first rack 68 moves downward, it can drive the first gear 67 to rotate one circle. When the first rack 68 moves upward, it can also drive the first gear 67 to rotate one circle, thereby achieving the effect that when the welding head 3 moves downward and upward, the slide bar 61, the groove shaft 62 and the cutter 63 can all perform an up and down reciprocating movement. Two straight grooves 611 are provided on the groove shaft 62, and a curved groove 612 is connected between the bottom ends of the two straight grooves 611. The outer wall of the ultrasonic welder 2 is connected to a right-angle frame 69, and the right-angle frame 69 is connected to a sliding shaft 610. When the sliding shaft 610 moves, it slides in the two straight grooves 611 and the curved groove 612. When the groove shaft 62 reaches the highest point, the sliding shaft 610 is located in the curved groove 6 12, an inner slide 613 is slidably installed inside the groove shaft 62, two notches are provided in the curved groove 612, two ends of the inner slide 613 are respectively located in the two notches of the curved groove 612, a guide block 614 is connected to the inner slide 613, the guide block 614 is slidably connected to the curved groove 612, the lower half of the guide block 614 forms a chamfer, the slide shaft 610 contacts the two ends of the inner slide 613 in turn during movement, the slide shaft 610 can slide alternately in the two straight grooves 611, and the slide shaft 610 can drive the groove shaft 62 to rotate forty-five degrees during the sliding process in the curved groove 612, so that the groove shaft 62 can rotate forty-five degrees each time it moves upward, and each rotation direction is opposite to the previous one, so that the cutting After the knife 63 performs a 45-degree slitting, it will perform a 90-degree slitting next time, and then a 45-degree slitting the next time, and so on, the cutter 63 switches back and forth between the 45-degree slitting and the 90-degree slitting, and performs slitting alternately; through the setting of the slitting device 6, the ultrasonic welder 2 can drive the slitting device 6 to operate when it is running, so that the cutter 63 can automatically perform slitting operations through up and down reciprocating motion; through the cooperation of the groove shaft 62 and the sliding shaft 610, the cutter 63 can rotate 45 degrees each time it moves upward, so that the cutter 63 can alternately perform 45-degree and 90-degree slitting operations, achieving the effect of automatically adjusting the angle for slitting, reducing the operation steps of manually adjusting the angle, and improving work efficiency. ;

[0022] For further information, see Figure 8 － Fig.14The traction device 7 is used to pull the carbon fiber unidirectional belt. The traction device 7 includes a second rack 71, which is installed on the front side of the slide bar 61. A ball screw 72 is rotatably installed at the bottom of the operating table 1 through a bracket. The end of the ball screw 72 close to the slide bar 61 is connected to a second gear 73, and the second gear 73 is meshed with the second rack 71. During the downward movement of the slide bar 61, the second gear 73 is driven to rotate by the second rack 71, and the second gear 73 drives the ball screw 72 to rotate. A ball slider 74 is slidably installed on the bottom surface of the operating table 1, and a ball screw 72 is provided with a There is a threaded groove, and the inner wall of the ball slider 74 is provided with a ball and the ball is slidably connected to the threaded groove of the ball screw 72. During the rotation of the ball screw 72, the ball slider 74 is driven to move horizontally through the cooperation between the ball and the threaded groove. The front side of the ball slider 74 is connected to a shift rack 75. The operating table 1 is provided with a horizontal slide groove and a longitudinal slide groove. The first slider 76 is slidably connected in the horizontal slide groove of the operating table 1. The shift rack 75 is connected to the first slider 76. The top of the first slider 76 is connected to a first lower clamping plate 77. The first lower clamping plate 77 is slidably connected to a first upper clamping plate 78. The front end of the first upper clamping plate 78 is connected to the second roller 79, and the first slot plate 710 and the second slot plate 717 are installed on the operating table 1. The first slot plate 710 is located in front of the horizontal slot of the operating table 1, and the second slot plate 717 is located on the right side of the longitudinal slot of the operating table. The first slot plate 710 and the second slot plate 717 are respectively provided with parallelogram slots. The second roller 79 is slidably connected with the parallelogram slot of the first slot plate 710. The process of the second roller 79 sliding in the parallelogram slot of the first slot plate 710 is circular sliding. The second roller 79 is at the top of the parallelogram slot. After moving to the left, it slides downward along the left inclined surface, and finally moves to the right along the lower side, and then slides to the left along the upper side after sliding upward on the right side, and repeats this cycle. When the second roller 79 moves up and down, it can drive the first upper clamping plate 78 to slide up and down, so that the first upper clamping plate 78 moves downward when it moves to the leftmost position, and clamps the one-way belt by cooperating with the first lower clamping plate 77, and then pulls the one-way belt to the right during the rightward movement. When it moves to the rightmost position, the first upper clamping plate 78 moves upward to release the one-way belt, and then moves to the left again and repeats the above process.A second slider 712 is slidably connected in the longitudinal slide groove of the operating table 1, and a connecting rod 711 is hinged between the bottom of the second slider 712 and the first slider 76. When the first slider 76 moves to the right, the second slider 712 is driven to move backward through the connecting rod 711. When the first slider 76 moves to the left, the second slider 712 is driven to move forward through the connecting rod 711. The top of the second slider 712 is connected to a second lower clamping plate 713, and the second upper clamping plate 714 is slidably connected to the second lower clamping plate 713. The top surface of the second lower clamping plate 713 and the bottom surface of the second upper clamping plate 714 are respectively rotatably installed with a rotating head 715, and the second upper clamping plate 714 is away from the rotating head 715. The third roller 716 is connected to one end of the operating table 1, and a baffle 718 is connected to the operating table 1. The front end of the baffle 718 is provided with an arc angle. The baffle 718 is located on the left side of the two rotating heads 715. The third roller 716 is slidably connected with the parallelogram slide groove of the second slot plate 717. When the second slider 712 moves to the front, the second upper clamping plate 714 moves downward, and the two rotating heads 715 on the second lower clamping plate 713 and the second upper clamping plate 714 clamp the right rear corner of the one-way belt. Then the two rotating heads 715 drive the right rear corner of the one-way belt to move backward, and the rear side of the one-way belt slides along the arc angle of the baffle 718, so that the one-way belt is gradually pulled Rotate ninety degrees to change the one-way belt from horizontal distribution to vertical distribution; a square groove is provided on the operating table 1, and a flip plate 719 is rotatably installed in the square groove of the operating table 1. The flip plate 719 is located on the right side of the baffle 718. A reset spring is provided in the flip plate 719, so that the flip plate 719 can automatically reset. The rear side of the flip plate 719 is connected to the third gear 720. The operating table 1 is slidably connected to a third rack 721 and a triangular block 722. The third rack 721 is connected to the triangular block 722, and the third rack 721 is meshed with the third gear 720. The triangular block 722 is located on the motion trajectory of the second slider 712. When it is about to slide to the rearmost position, the second slider 712 contacts the triangular block 722 and pushes it to the left, and the triangular block 722 drives the third rack 721 to move to the left. During the movement of the third rack 721 to the left, the third gear 720 drives the flip plate 719 to flip counterclockwise. The one-way belt pulled by the two rotating heads 715 is located on the flip plate 719, so that the one-way belt is flipped when the flip plate 719 flips. At the same time, the baffle plate 718 presses against the side of the one-way belt, and finally the one-way belt completes a 180-degree flip, thereby achieving the effect that the two rotating heads 715 turn the one-way belt backward and pull it backward, and then turn the one-way belt over through the flip plate 719.Through the setting of the traction device 7, the first lower clamping plate 77 and the first upper clamping plate 78 can pull the one-way belt to the right, the two turning heads 715 can pull the one-way belt backward and turn it, and the flip plate 719 can drive the one-way belt to turn over, so that the 45-degree cuts of the one-way belt on the left and the one-way belt on the right can fit together, and after welding, an L-shaped one-way belt is formed, achieving the effect of automatic traction and splicing. Through the cooperation with the ultrasonic welder 2 and the slitting device 6, the effect of automatic slitting, traction, and welding is achieved, and the automation level and work efficiency are improved. ; Embodiment 2

[0023] A method for preparing carbon fiber by slitting and welding at 45 degrees and 90 degrees, using a carbon fiber slitting and welding machine at 45 degrees and 90 degrees in Example 1, further comprising the following steps: Step 1: Unwinding, installing the rolled unidirectional tape on the winding frame 5; Step 2: Unwinding, pulling out one end of the unidirectional belt and placing it on the operating table 1, and pulling the end and placing it on the baffle 718; Step 3: Cutting, start the ultrasonic welder 2, move the welding head 3 downward, and the cutter 63 moves downward synchronously to cut the unidirectional tape at 90 degrees; Step 4: traction and welding. The traction device 7 tractions the unidirectional belt to the right for a distance. The cutter 63 adjusts the angle and performs a 90-degree cut. The traction device 7 tractions again, and the tail end of the previous unidirectional belt is laid together with the head end of the unidirectional belt just cut. The welding head 3 moves down to perform welding. Step 5: Transfer, use the transfer robot to transfer the welded L-shaped one-way belt to the next process; Step six: the welding head 3, the slitting device 6 and the pulling device 7 cooperate to perform cyclic slitting and welding operations.

[0024] With the above structure, the working principle of this case is that the ultrasonic welding machine 2 is a prior art, and can use the hydraulic cylinder inside it to drive the welding head 3 to move downward, and the stabilizing frame 4 moves downward with the welding head 3, which enhances the stability of the welding head 3 and avoids the welding position deviation of the welding head 3 due to the wear of the hydraulic cylinder after long-term use; the stabilizing frame 4 drives the first rack 68 to move synchronously when moving, and the first rack 68 can drive the first gear 67 to rotate one circle when moving downward, and the first rack 68 can also drive the first gear 67 to rotate one circle when moving upward, and the first gear 67 drives the rotating rod 66 to rotate when rotating, and the rotating rod 66 can drive the slide frame 64 to move up and down once through the first roller 65 when rotating one circle, and the slide frame 64 drives the slide rod 61 to move The groove shaft 62 and the cutter 63 on the slide bar 61 perform an up and down reciprocating motion, and the groove shaft 62 and the cutter 63 on the slide bar 61 perform an up and down reciprocating motion synchronously, so that when the welding head 3 moves downward and upward, the slide bar 61, the groove shaft 62 and the cutter 63 can all perform an up and down reciprocating motion. The initial state of the cutter 63 is forty-five degrees. After the one-way tape is installed on the winding rack 5, the one-way tape is laid on the operating table 1. During the downward movement of the cutter 63, the one-way tape is cut at forty-five degrees, so that both sections of the one-way tape form a forty-five degree cut. When the cutter 63 and the groove shaft 62 move upward, the slide shaft 610 on the right-angle frame 69 slides along the straight groove 611 on the left. When the groove shaft 62 is about to move upward into place, the slide shaft 610 enters the curved groove 612. When the groove shaft 62 reaches the highest point, the slide shaft 6 10 is located at the center of the curved groove 612. The sliding shaft 610 contacts the left end of the inner slide 613 during the process of entering the curved groove 612, so that the sliding shaft 610 pushes the inner slide 613 to the left for a distance, and the inner slide 613 drives the guide block 614 to move to the left. When the guide block 614 is in the middle position, it fits with the inner corner of the curved groove 612, and the lower half of the guide block 614 forms a chamfer. After the guide block 614 moves to the left, the chamfer of the lower half of the guide block 614 moves to the left, so that after the groove shaft 62 moves downward, the sliding shaft 610 is guided by the guide block 614 and directly enters the straight groove 611 on the right. Similarly, after the groove shaft 62 moves up again, the sliding shaft 610 enters the curved groove 612 and pushes the inner slide 613 to the right. Then, the sliding shaft 6 10 enters the straight groove 611 on the left, so that the sliding shaft 610 can slide alternately in the two straight grooves 611, and in the process of sliding the sliding shaft 610 in the curved groove 612, it can drive the groove shaft 62 to rotate forty-five degrees, so that the groove shaft 62 can rotate forty-five degrees each time it moves upward, and each rotation direction is opposite to the previous one. Therefore, after the cutter 63 performs a forty-five-degree cut, the next time it will perform a ninety-degree cut, and the next time it will perform a forty-five-degree cut, and so on. The cutter 63 switches back and forth between the forty-five-degree cut and the ninety-degree cut, and performs the cuts alternately; through the setting of the cutting device 6, the ultrasonic welder 2 can drive the cutting device 6 to run when it is running, so that the cutter 63 can automatically perform the cutting operation through the up and down reciprocating motion;Through the cooperation of the groove shaft 62 and the sliding shaft 610, the cutter 63 can rotate 45 degrees each time it moves upward, so that the cutter 63 can alternately perform 45-degree and 90-degree slitting operations, achieving the effect of automatically adjusting the angle for slitting, reducing the steps of manual angle adjustment, and improving work efficiency. ;

[0025] When the slide bar 61 moves downward, the second gear 73 is driven to rotate by the second rack 71, and the second gear 73 drives the ball screw 72 to rotate. When the ball screw 72 rotates, the cooperation between the ball and the thread groove drives the ball slider 74 to move rightward. Similarly, when the slide bar 61 moves upward, the ball screw 72 reverses, and the ball slider 74 moves to the left and resets. When the ball slider 74 moves, it drives the first slider 76 to move synchronously through the shifting frame 75. When the first slider 76 moves, it drives the first lower clamping plate 77 and the first upper clamping plate 78 to move synchronously. The first upper clamping plate 78 drives the second roller 79 to move synchronously. The second roller 79 is in the parallelogram of the first slot plate 710. The sliding process in the groove is a circular sliding process. After the second roller 79 moves to the left at the top edge of the parallelogram groove, it slides downward along the left inclined surface, and finally moves to the right along the lower side. After sliding upward along the right side, it slides to the left along the upper side, and this cycle is repeated. When the second roller 79 moves up and down, it can drive the first upper clamping plate 78 to slide up and down, so that the first upper clamping plate 78 moves downward when it moves to the leftmost position, and the one-way belt is clamped by cooperating with the first lower clamping plate 77. Then, the one-way belt is pulled to the right during the rightward movement. When it moves to the rightmost position, the first upper clamping plate 78 moves upward to release the one-way belt, and then moves to the left again and repeats the above process.When the first slider 76 moves to the right, it drives the second slider 712 to move backward through the connecting rod 711. When the first slider 76 moves to the left, it drives the second slider 712 to move forward through the connecting rod 711. When the second slider 712 moves, it drives the second lower clamping plate 713 and the second upper clamping plate 714 to move synchronously. The third roller 716 on the second upper clamping plate 714 follows the same principle as the second roller 79 and the first slot plate 710. When the third roller 716 moves to the front in the second slot plate 717, it moves downward. When the third roller 716 moves to the rear, it moves upward. After the first lower clamping plate 77 and the first upper clamping plate 78 pull the one-way belt to the right, the right rear corner of the one-way belt is located between the two rotating heads 7 15, so that when the second slider 712 moves to the front, the second upper clamping plate 714 moves downward, and the two rotating heads 715 on the second lower clamping plate 713 and the second upper clamping plate 714 clamp the right rear corner of the one-way belt, and then the two rotating heads 715 drive the right rear corner of the one-way belt to move backward, and the rear side of the one-way belt slides along the arc angle of the baffle 718, so that the one-way belt is gradually pulled and rotated ninety degrees, so that the one-way belt changes from a horizontal distribution to a longitudinal distribution. When the second slider 712 is about to slide to the rear, the second slider 712 contacts the triangular block 722 and pushes it to the left, and the triangular block 722 drives the third rack 721 to move left, and the third rack 721 moves left During the process, the third gear 720 drives the flip plate 719 to flip counterclockwise, and the one-way belt pulled by the two rotating heads 715 is located on the flip plate 719, so that when the flip plate 719 flips, the one-way belt is flipped. At the same time, the baffle plate 718 presses against the side of the one-way belt, and finally the one-way belt completes a 180-degree flip, thereby achieving the effect of the two rotating heads 715 turning the one-way belt backward and pulling it backward, and then turning the one-way belt over through the flip plate 719. A reset spring is provided in the flip plate 719, so that the flip plate 719 can automatically reset after the second slider 712 slides forward, and the triangular block 722 is reset accordingly. After the one-way belt is flipped, the forty-five-degree cut above it is aligned with the left The 45-degree cuts of the unidirectional belt are fitted together, and the welding head 3 is welded when it moves downward, so as to form an L-shaped unidirectional belt; the overall working process is that when the welding head 3 moves downward, the unidirectional belt on the right moves to the right and turns over, the unidirectional belt on the left moves to the right, the cutter 63 is turned to 90 degrees and cuts at 90 degrees, and when the welding head 3 moves upward, the L-shaped unidirectional belt is transported to the next process by the transfer robot arm, and at the same time, the new unidirectional belt on the left is pulled to the right, the cutter 63 is turned to 45 degrees and cuts at 45 degrees, and after the cutting is completed, the right rear corner of the unidirectional belt is located between the two rotating heads 715, and when the welding head 3 moves downward again, the above steps are repeated, and the cycle is repeated;Through the setting of the traction device 7, the first lower clamping plate 77 and the first upper clamping plate 78 can pull the one-way belt to the right, the two turning heads 715 can pull the one-way belt backward and turn it, and the flip plate 719 can drive the one-way belt to turn over, so that the 45-degree cuts of the one-way belt on the left and the one-way belt on the right can fit together, and after welding, an L-shaped one-way belt is formed, achieving the effect of automatic traction and splicing. Through the cooperation with the ultrasonic welder 2 and the slitting device 6, the effect of automatic slitting, traction, and welding is achieved, and the automation level and work efficiency are improved. ;

[0026] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A carbon fiber 45 degree and 90 degree slitting and welding machine, characterized in that: include: An operating table (1), an ultrasonic welder (2) is installed on the operating table (1), a welding head (3) is connected to the ultrasonic welder (2) via a hydraulic cylinder, a stabilizing frame (4) is connected to the top of the welding head (3), an end of the stabilizing frame (4) away from the welding head (3) is slidably connected to the outer wall of the ultrasonic welder (2), and a winding frame (5) is connected to the left side of the operating table (1); A slitting device (6) for slitting the carbon fiber unidirectional tape; A traction device (7) for traction of the carbon fiber unidirectional tape; The slitting device (6) includes a slide bar (61), the slide bar (61) is slidably mounted on the operating table (1), the slide bar (61) is rotatably connected to a groove shaft (62) via a bracket, the bottom end of the groove shaft (62) is connected to a cutter (63), the top of the slide bar (61) is connected to a chute frame (64), a rotating rod (66) is rotatably mounted on the operating table (1) via a bracket, the rotating rod (66) is connected to a first roller (65), the rotating rod (66) is connected to a first gear (67) on a side away from the chute frame (64), and a first rack (68) is mounted on the stabilizing frame (4) via a bracket.

2. A carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 1, characterized in that: The slide frame (64) is provided with a slide, the first roller (65) is slidably connected to the slide of the slide frame (64), and the first gear (67) is meshed with the first rack (68).

3. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 2, characterized in that: Two straight grooves (611) are provided on the groove shaft (62), and a curved groove (612) is connected between the bottom ends of the two straight grooves (611). The outer wall of the ultrasonic welder (2) is connected to a right-angle frame (69), and a sliding shaft (610) is connected to the right-angle frame (69). When the sliding shaft (610) moves, it slides in the two straight grooves (611) and the curved groove (612).

4. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 3, characterized in that: An inner slide (613) is slidably mounted inside the groove shaft (62), two notches are provided in the curved groove (612), and two ends of the inner slide (613) are respectively located in the two notches of the curved groove (612). A guide block (614) is connected to the inner slide (613), and the guide block (614) is slidably connected to the curved groove (612). When the sliding shaft (610) moves, it contacts the two ends of the inner slide (613) in turn.

5. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 4, characterized in that: The traction device (7) includes a second rack (71), which is installed on the front side of the slide bar (61). A ball screw (72) is rotatably installed on the bottom of the operating table (1) through a bracket. The end of the ball screw (72) close to the slide bar (61) is connected to a second gear (73). The second gear (73) is meshed with the second rack (71). A ball slider (74) is slidably installed on the bottom surface of the operating table (1). The front side of the ball slider (74) is connected to a shifting frame (75). The operating table (1) is provided with a transverse slide groove and a longitudinal slide groove, a first slider (76) is slidably connected in the transverse slide groove of the operating table (1), the shifting frame (75) is connected to the first slider (76), the top of the first slider (76) is connected to a first lower clamping plate (77), the first lower clamping plate (77) is slidably connected to a first upper clamping plate (78), the front end of the first upper clamping plate (78) is connected to a second roller (79), and a first slot plate (710) and a second slot plate (717) are installed on the operating table (1).

6. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 5, characterized in that: The ball screw (72) is provided with a threaded groove, the inner wall of the ball slider (74) is provided with a ball, and the ball is slidably connected to the threaded groove of the ball screw (72), the first slot plate (710) is located in front of the horizontal slot of the operating table (1), and the second slot plate (717) is located to the right of the longitudinal slot of the operating table, the first slot plate (710) and the second slot plate (717) are respectively provided with a parallelogram slot, and the second roller (79) is slidably connected to the parallelogram slot of the first slot plate (710).

7. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 6, characterized in that: A second slider (712) is slidably connected in the longitudinal slide groove of the operating table (1), a connecting rod (711) is hinged between the bottom of the second slider (712) and the first slider (76), a second lower clamp (713) is connected to the top of the second slider (712), a second upper clamp (714) is slidably connected to the second lower clamp (713), a rotating head (715) is rotatably installed on the top surface of the second lower clamp (713) and the bottom surface of the second upper clamp (714), and a third roller (716) is connected to the end of the second upper clamp (714) away from the rotating head (715), and a baffle (718) is connected to the operating table (1).

8. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 7, characterized in that: The front end of the baffle (718) is provided with an arc angle. The baffle (718) is located to the left of the two rotating heads (715). The third roller (716) is slidably connected to the parallelogram groove of the second groove plate (717).

9. The carbon fiber 45-degree and 90-degree slitting and welding machine according to claim 8, characterized in that: The operating table (1) is provided with a square groove, and a flip plate (719) is rotatably installed in the square groove of the operating table (1), and the flip plate (719) is located to the right of the baffle (718). The rear side of the flip plate (719) is connected to a third gear (720), and a third rack (721) and a triangular block (722) are slidably connected to the operating table (1), and the third rack (721) and the triangular block (722) are connected. The third rack (721) is meshed with the third gear (720), and the triangular block (722) is located on the motion trajectory of the second slider (712).

10. A method for preparing carbon fiber by slitting and welding at 45 and 90 degrees, characterized in that: The carbon fiber 45-degree and 90-degree slitting and welding machine according to any one of claims 1 to 9 further comprises the following steps: Step 1: Unwinding, installing the rolled unidirectional tape on the rewinding rack (5); Step 2: Unloading, pulling out one end of the unidirectional belt and placing it on the operating table (1), and pulling the end portion and placing it on the baffle (718); Step 3: Cutting, start the ultrasonic welding machine (2), move the welding head (3) downward, and the cutter (63) moves downward synchronously to cut the unidirectional tape at 90 degrees; Step 4: pulling and welding, the pulling device (7) pulls the unidirectional belt to the right for a distance, the cutter (63) adjusts the angle and cuts it at 90 degrees, the pulling device (7) pulls again, and the tail end of the previous unidirectional belt is laid together with the head end of the unidirectional belt just cut, and the welding head (3) moves down to weld; Step 5: Transfer, use the transfer robot to transfer the welded L-shaped one-way belt to the next process; Step 6: The welding head (3), the slitting device (6), and the pulling device (7) cooperate to perform a cyclic slitting and welding operation.

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