A carbon fiber prepreg web slitting system
By adopting a three-layer structure material design and floating tension balance roller technology in the carbon fiber prepreg slitting system, the problems of unstable slitting accuracy and inconvenient operation have been solved, achieving a high-precision, paper-free slitting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU RUISAI ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-23
AI Technical Summary
Existing carbon fiber prepreg slitting devices suffer from problems such as unstable slitting accuracy, small master roll diameter, inconvenient operation, difficulty in guaranteeing the quality of the cutting head, and easy generation of paper scraps and sticking to the blade during slitting.
The material adopts a three-layer structure (release paper, carbon fiber prepreg, and PE film). By setting floating tension balancing rollers and correction sensors before and after slitting through replacement units and laminating units, constant tension is ensured. Hot-press rollers are used to attach the PE film, and combined with a movable frame and correction drive motor, stable slitting of large-diameter master rolls is achieved.
It enables slitting under PE film protection, avoids paper scraps, ensures stable tension of the slitting section, improves slitting width accuracy, simplifies the operation process, adapts to large-diameter master rolls, and achieves long-length seamless slitting.
Smart Images
Figure CN224394239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a carbon fiber prepreg web cutting system. Background Technology
[0002] Fiber layup is increasingly being used in the manufacture of composite material parts in aerospace and other industrial fields. This new composite material molding process has become an important carbon fiber composite material molding process.
[0003] The fiber layup process requires first slitting the carbon fiber prepreg into strips of a fixed width (typically 6.35mm) (slit filaments), then winding them into cross-wound filament cakes. These cakes are then placed on a fiber layup machine for placement. To ensure no air gaps after placement and to meet the dimensional requirements of the precision layup head, the slit filament width and condition must be exceptionally precise. To improve placement efficiency, multiple filament cakes are typically laid simultaneously, requiring that the slit filaments on each cake be of a fixed length, and ideally as long as possible. Furthermore, the slit filaments must be free of fuzz and chips.
[0004] Currently available slitting devices suffer from unstable slitting accuracy and poor slitting quality. These types of slitting equipment have the following shortcomings:
[0005] 1) The diameter of the master roll is too small; 2) After the master roll is slit, the joint unit operation is inconvenient and time-consuming, and the cutting head quality is difficult to guarantee; 3) During slitting, there is generally no PE film / release paper, or single-sided PE film or release paper, which easily generates paper scraps or sticks to the blade, affecting the slitting accuracy; 4) The tension fluctuates greatly in the slitting zone, affecting the slitting accuracy. Summary of the Invention
[0006] To address the aforementioned problems, the purpose of this utility model is to provide a carbon fiber prepreg web slitting system.
[0007] To achieve the above objectives, the solution of this utility model is as follows:
[0008] A carbon fiber prepreg web slitting system includes a feeding roller, a slitting unit, and a traction unit mounted on a frame support plate. The feeding roller holds the raw material roll, and the traction unit, located after the slitting unit, pulls the raw material into the slitting unit and delivers the slitting carbon fiber prepreg strips. The raw material has a three-layer structure, consisting of release paper, carbon fiber prepreg web, and PE film from top to bottom. A replacement unit and a laminating unit are located between the feeding roller and the slitting unit. The replacement unit replaces the release paper on the upper layer of the raw material with the same PE film as the lower layer. The laminating unit is equipped with hot-pressing rollers for hot-pressing and attaching the replaced PE film to the upper layer of the raw material. The material is pulled out, and a speed sensor is installed next to the feeding roller to measure the speed at which the feeding roller delivers the raw material. A connecting unit is installed between the feeding roller and the replacement unit to connect the raw materials of the front and rear rolls when the machine stops and resumes winding. A tension sensing roller is installed between the connecting unit and the replacement unit to sense the traction force of the hot pressing roller of the coating unit on the raw material and adjust and stabilize the speed at which the feeding roller delivers the raw material. A floating tension balancing roller is installed between the coating unit and the slitting unit to balance the traction force of the traction unit on the raw material to be cut, so that the tension of the raw material to be cut is constant and it passes through the slitting unit smoothly.
[0009] The solution is further described as follows: The replacement unit includes a release paper take-up roller and a PE film unwind roller arranged in the order of the raw material flow. A cooling roller and a release paper peeling roller are arranged before the release paper take-up roller. After the raw material comes out of the connecting unit, it first passes through the tension sensing roller, then through the cooling roller to the release paper peeling roller. The release paper peeled off by the release paper peeling roller is wound onto the release paper take-up roller. The PE film released by the PE film unwind roller replaces the release paper and is attached to the surface of the raw material after the release paper is peeled off before entering the laminating unit together.
[0010] A further aspect of the solution is that the floating tension balancing roller is suspended and positioned on the frame support plate by sliding up and down through a groove and cooperating with the guide rails on both sides of the frame support plate. A piston cylinder is provided on the frame support plate above the floating tension balancing roller. The telescopic arm of the piston cylinder extends and connects to the floating tension balancing roller to form the floating tension balancing roller suspended on the guide rails on both sides. By inputting a certain pressure of gas into the piston cylinder, the tension of the floating tension balancing roller, which is supported by the raw material being cut, is balanced.
[0011] A further aspect of the solution is that a cooling passage is provided in the floating tension balancing roller to form a primary cooling roller, and a secondary cooling roller is provided between the floating tension balancing roller and the slitting unit. The primary and secondary cooling rollers are used to reduce the temperature of the raw material being slitted, thereby reducing the adhesion of the raw material being slitted.
[0012] A further aspect of the solution is that the feeding roller is mounted on a movable frame, which is movably positioned on the machine frame support plate via a guide shaft. The movable frame is driven by a correction drive motor via the guide shaft to move horizontally back and forth perpendicular to the machine frame support plate. A correction sensor is installed between the connecting unit and the feeding roller. The correction sensor is used to sense and capture the lateral edge signal of the material passing through, and the lateral edge signal controls the correction drive motor to correct the deviation of the material passing through.
[0013] The solution further includes: the connecting unit includes a new roll fixed-length cutting table and a new and old roll docking table. The new roll fixed-length cutting table includes a cutting plate and a rotatable pressure plate, and a fixed-length cutting opening is provided on the cutting plate. The new and old roll docking table includes a docking platform and a hot pressure plate. The surface of the docking platform is provided with air holes. An air pump is connected to the air holes of the docking platform to form an adsorption platform on the surface of the docking platform. A cutting opening for the tail end of the old roll is provided in the middle of the surface of the docking platform. The hot pressure plate is driven by a cylinder and is located on the upper side of the middle position of the surface of the docking platform. A release paper adsorption shaft is also provided above the surface of the docking platform.
[0014] A further aspect of the solution is that the speed sensor is a roller contact speed sensor. The sensor's roller is fixed to the frame support plate next to the feed roller via a free-moving arm. During speed measurement, the speed sensor's roller is placed on the raw material roll on the feed roller to test the linear speed of the output raw material.
[0015] The solution further includes: the slitting unit includes an upper cutting roller and a lower cutting roller mounted on a unit frame. The upper and lower cutting rollers are axially spaced with blades. The lower cutting roller is driven to rotate by a motor. The upper cutting roller is equipped with an adjusting arm for adjusting its vertical movement. A position sensor is mounted on one side of the unit frame facing the upper cutting roller. The position sensor is used to determine the staggered position of the blades of the upper and lower cutting rollers when adjusting the upper cutting roller. During operation, the blades of the upper and lower cutting rollers roll and intersect to cut the raw material into strips. The two ends of the upper and lower cutting rollers are respectively positioned by a central ejector pin. The central ejector pin can be moved back and forth by a hydraulic cylinder to facilitate the replacement of the upper and lower cutting rollers.
[0016] The beneficial effects of this utility model are:
[0017] 1) This utility model involves slitting with PE film protecting both the top and bottom, which can avoid paper scraps and reduce resin sticking to the blade;
[0018] 2) Ensures stable tension in the slitting section, unaffected by winding tension, thus improving the accuracy of the slitting width.
[0019] 3) This utility model can guarantee the quality of the joint and make the operation very simple: pull, tear, press, and peel, avoiding the need for rewinding of slit filaments.
[0020] 4) The independent unwinding mechanism design can adapt to large roll diameters and achieve a single-roll slitting roll length of up to 2500mm without joints.
[0021] This invention uses prepreg double-sided PE film for slitting, avoiding chips at the cut and minimizing blade sticking. The slitting section has a stable and controllable slitting tension formed by the film-coating pressure roller and the traction pressure roller, thus achieving stable slitting width accuracy. Advantages include: 1) The master roll adopts a large-diameter structural design; 2) The roll-changing overlap device is convenient to operate, ensures precise overlap, improves efficiency, and eliminates the need for rewinding; 3) Double-sided PE film structure design; 4) Controllable and constant tension structure design for the slitting section.
[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0023] Figure 1 This is a front plan view of the structure of this utility model. Figure 2 CC view;
[0024] Figure 2 This is a top view of the structure of this utility model;
[0025] Figure 3 This is a front planar axial side view of the structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the top surface of the floating tension balancing roller drive of this utility model. Figure 2 Enlarged view of part A;
[0027] Figure 5 This is a schematic diagram of the system connection unit structure of this utility model;
[0028] Figure 6 This is a schematic diagram of connector structure form A of this utility model;
[0029] Figure 7 This is a schematic diagram of connector structure form B of this utility model;
[0030] Figure 8 This is a schematic diagram of the assembly structure of the feed roller of this utility model;
[0031] Figure 9 This is a schematic diagram of the front structure of the feed roller of this utility model from an axial side view.
[0032] Figure 10 This is a side view of the back structure of the feed roller of this utility model;
[0033] Figure 11 This is an isometric schematic diagram of the slitting unit structure of this utility model;
[0034] Figure 12This is a schematic diagram of the slitting unit structure of this utility model. Detailed Implementation
[0035] A carbon fiber prepreg web slitting system, such as Figures 1 to 12 As shown, the system includes a feeding roller 101, a slitting unit 102, and a traction unit 103 mounted on a frame support plate 1. The traction unit 103 can be a pair of rollers as shown in the figure, or it can be a differential shaft traction unit. The feeding roller 101 is used to place the raw material roll 2 (the width of the raw material roll 2 is usually around 300mm). The traction unit 103 is located after the slitting unit 102 and is used to pull the raw material 3 into the slitting unit 102 and send out the slit carbon fiber prepreg strips 4. The slitting unit 102 has blades arranged side by side according to different fixed widths (generally 6.35mm). The carbon fiber prepreg is divided into multiple strips by the slitting unit 102. The raw material 3 has a three-layer structure, from top to bottom: release paper 201, carbon fiber prepreg 202, and PE film 203. A replacement unit 104 and a laminating unit 105 are arranged between the two layers. The replacement unit 104 is used to replace the release paper on the upper layer of the raw material with the same PE film as the lower layer. The laminating unit 105 is equipped with hot-pressing rollers via a frame 105-1. The frame 105-1 is fixed on the machine frame support plate 1. The hot-pressing rollers are used to hot-press and attach the PE film replacing the upper layer of the raw material and pull it out. Their traction determines the operating speed of the equipment. The hot-pressing rollers include an electrically heated upper hot-pressing roller 105-2 and a lower hot-pressing roller 105-3. The lower hot-pressing roller 105-3 is driven by a motor 105-4 as the drive wheel. The upper hot-pressing roller 105-2 is driven by a cylinder 105-5 to move up and down along a vertical guide rail set on the frame 105-1. A speed sensor 5 is arranged next to the feeding roller 101. The speed sensor 5 is used to measure the speed at which the feeding roller feeds the raw material. Figure 9 and Figure 10 As shown, the speed sensor 5 is a roller contact speed sensor. The sensor's roller is fixed to the frame support plate 1 next to the feed roller 101 via a free movable arm 501. During speed measurement, the roller of the speed sensor 5 is placed on the raw material roll 2 on the feed roller to test the linear speed of the output raw material. A connecting unit 106 is provided between the feed roller 101 and the replacement unit 104. The connecting unit 106 is used to connect the raw materials of the front and rear rolls when the machine stops and resumes winding. A tension sensing roller 6 is provided between the connecting unit 106 and the replacement unit 104. The tension sensing roller 6 is used to sense the traction force of the hot pressing roller of the coating unit 105 on the raw material and thus adjust and stabilize the speed at which the feed roller 101 delivers the raw material. A floating tension balancing roller 7 is provided between the coating unit 105 and the slitting unit 102. The floating tension balancing roller 7 is used to balance the traction force of the traction unit 103 on the raw material to be cut, so that the tension of the raw material to be cut is constant and it passes through the slitting unit 102 smoothly.
[0036] Among them, such as Figure 1 As shown ( Figure 2 , 3 (Not shown) A thermoplastic pressure roller 101-2 is also provided next to the feeding roller 101 via a rotating arm 101-1. The function of the thermoplastic pressure roller 101-2 is to compact the material roll 2 and increase the density of the material roll 2 to facilitate slitting.
[0037] It should be noted that the "before" and "after" in the embodiments are defined based on the direction of the raw material. The replacement unit 104 includes a release paper take-up roller 104-1 and a PE film unwind roller 104-2 arranged in the direction of the raw material 3. A cooling roller 104-4 and a release paper peeling roller 104-3 are arranged before the release paper take-up roller 104-1. After the raw material 3 comes out of the connecting unit 106, it first passes through the tension sensing roller 6, and then through the cooling roller 104-4 to the release paper peeling roller 104-3. The cooling roller 104-4 is air-cooled, and two are arranged to improve the cooling effect. The release paper peeled off by the release paper peeling roller 104-3 is wound onto the release paper take-up roller 104-1. The PE film released by the PE film unwind roller 104-2 replaces the release paper and is attached to the surface of the raw material 3 after the release paper is peeled off. They then enter the laminating unit 105 for hot pressing.
[0038] The floating tension balancing roller 7 is suspended and positioned on the frame support plate 1 by sliding up and down through a groove 701 and a guide rail 702 on both sides of the frame support plate 1. A piston cylinder 703 is provided on the frame support plate 1 above the floating tension balancing roller 7. The telescopic arm of the piston cylinder 703 extends and connects to the floating tension balancing roller 7 to form the floating tension balancing roller 7 suspended on the guide rails on both sides. By inputting a certain pressure of gas into the piston cylinder 703, the tension of the floating tension balancing roller 7 is balanced by the raw material being cut.
[0039] In this embodiment: a cooling passage is provided in the floating tension balancing roller 7 to form a primary cooling roller, and a secondary cooling roller 8 is provided between the floating tension balancing roller and the slitting unit. The primary cooling roller and the secondary cooling roller are used to reduce the temperature of the raw material being slitted, thereby reducing the adhesion of the raw material being slitted.
[0040] To control the deviation of the feed material, the feed roller 101 needs to be controlled to move horizontally perpendicular to the frame support plate. Furthermore, the feed roller 101 needs to be able to load large-sized raw material rolls 2 (approximately 300mm wide and 600-1000mm in diameter) to reduce the number of joints. Figure 8 , 9As shown in Figures 1 and 10, the feeding roller 101 is mounted on a movable frame 9, with a bushing 901 in the middle of the movable frame 9. The feeding roller 101 is an air-expanding shaft, and is fixed in the bushing 901 by front and rear double bearings 902. The movable frame 9 is movably positioned on the machine frame support plate 1 by a guide shaft 903, and can move horizontally back and forth perpendicular to the machine frame support plate 1 by a correction linear motor 904 driven by the guide shaft 903. A correction sensor 10 is provided between the connecting unit 106 and the feeding roller 101. The correction sensor 10 is used to sense and capture the lateral edge signal of the material 3 passing through, and the lateral edge signal controls the correction linear motor 904 to correct the deviation of the material 3 passing through.
[0041] Among them: such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the connecting unit 106 includes a new roll fixed-length cutting table 106-1 and a new and old roll docking table 106-2. The new roll fixed-length cutting table 106-1 includes a cutting plate 106-1-1 and a rotatable pressure plate 106-1-2. A fixed-length cutting opening 106-1-3 is provided on the cutting plate. During cutting: first, the end of the new roll material is placed on the cutting plate and pressed down by the pressure plate. Then, a cutter is used to cut the end of the new roll material along the fixed-length cutting opening to form a fixed-length joint. The new and old roll docking table 106-2 includes a docking platform 106-2-1 and a hot pressing plate 106-2-2. The surface of the docking platform 106-2-1 is provided with air holes 106-2-3. An air pump (not shown) is connected to the air holes of the docking platform 106-2-1 to form an adsorption platform on the surface of the docking platform 106-2-1. -2-1 has a cutout 106-2-4 for the end of the old roll in the middle. The hot press plate 106-2-2 is driven by a cylinder and is located on the upper side of the middle position of the docking platform 106-2-1. A release paper adsorption shaft 106-2-5 is also provided on the surface of the docking platform 106-2-1. During docking: lift the hot press plate 106-2-2, lay the end of the old roll on the docking adsorption platform 106-2-1, use a cutter to cut the end of the old roll to a fixed length along the cutout 106-2-4, peel up the release paper from the end of the old roll and attach it to the release paper adsorption shaft 106-2-5, then press the new roll fixed length joint on the new roll fixed length cutting table 106-1 onto the end of the old roll, lower the hot press plate 106-2-2 to press on the new roll fixed length joint for heating and pressurizing, and then lift the hot press plate 106-2-2 to complete the docking of the new and old rolls. There are two types of connectors:
[0042] Connector type A: Connector structure type as follows Figure 6 As shown, connector type B: connector structure as follows Figure 7As shown. The specific operation is as follows: When the old roll 205 is almost finished, a roll change reminder alarm is triggered. The operator turns on the roll change switch, and the docking platform 106-2-1 is used as a suction table (and the production line speed can be set to decrease). After the prepreg 202 is used up, the "Stop" button is pressed, and the original prepreg is manually cut along the slit. The upper release paper is then peeled off and placed on the release paper adsorption shaft 106-2-5.
[0043] As the new roll 204, install the new roll 204 into position and pull it to the new roll fixed-length cutting table 106-1. Press it firmly with the pressure plate, locking the new roll. Manually cut the new roll along the slit. Use a hot cutter to cut the head PE film 203 along the pressure plate (cut only the PE film). Pull the roll head to the overlapping area of the docking platform 106-2-1, activate the suction, and release the roll head. Close the negative pressure of the release paper suction plate, smooth the peeled release paper 201, and apply tape 205 to adhere the new and old release papers 201 together. Press down the hot plate, and after the set time, lift the hot plate. Manually move it forward (at the same time, the negative pressure stops) until the joint is below the first cooling roller 104-4, then stop the machine. Apply tape 206 to adhere the new and old PE films 203 together, completing the overlapping operation.
[0044] In the embodiment, the slicing unit 102 is as follows: Figure 11 and Figure 12 As shown, the assembly includes an upper cutter roller 102-1 and a lower cutter roller 102-2 mounted on a unit frame 102-5. The upper and lower cutter rollers 102-1 and 102-2 are axially spaced with cutting edges. The lower cutter roller 102-2 is driven to rotate by a motor. The upper cutter roller 102-1 is equipped with an adjusting arm 102-3, which is adjusted via a worm gear transmission mechanism 102-6. The worm gear has a manual adjusting wheel 102-7. The adjusting arm 102-3 is used to adjust the vertical movement of the upper cutter roller 102-1. A position indicator is provided on one side of the unit frame facing the upper cutter roller 102-1. Sensor 102-4, position sensor 102-4 is used to determine the staggered position of the blades of the upper and lower blade rollers 102-1 and 102-2 when adjusting the upper blade roller 102-1. During operation, the blades of the upper and lower blade rollers roll and intersect to divide the raw material 3 into strips. The upper blade roller 102-1 and the lower blade roller 102-2 are respectively mounted on the blade roller support seat 102-9 at both ends. The two ends of the upper blade roller 102-1 and the lower blade roller 102-2 are respectively positioned by the center pin 102-8. The center pin 102-8 can be moved back and forth by a hydraulic cylinder to facilitate the replacement of the upper and lower blade rollers.
[0045] Following the traction unit, upper and lower PE film winding rollers 11, waste edge winding rollers 12, and carbon fiber prepreg cutting strip guide output rollers 13 are respectively provided. The waste edge winding rollers 12 can be used for waste edge winding or for leftover material winding.
[0046] A defect label detection sensor 14 is installed between the feed roller 101 and the connecting unit 106. A hand-wound shaft 15 is installed on the frame support plate 1. The defect label detection sensor is used to detect defect labels affixed to the raw material roll 2 according to defects. When the defect label detection sensor detects a defect label, the speed is quickly reduced and the machine is stopped. The defect is manually cut off and the joint is closed. The cut-out defective material is then collected by the hand-wound shaft 15. Figure 1 As shown ( Figure 2 , 3 (Not shown), the hand-wound shaft 15 is cranked by the hand crank 1501.
[0047] The aforementioned carbon fiber prepreg web slitting system slits the material with PE film protecting both the top and bottom, thus avoiding paper scraps and reducing resin sticking to the blade. Because the prepreg is double-sided coated with PE film for slitting, chipping at the cut is avoided, and sticking to the blade is minimized. The slitting section, consisting of a film-coating roller and a traction roller, provides a stable and controllable slitting tension, thereby achieving consistent slitting width accuracy.
Claims
1. A carbon fiber prepreg web slitting system, comprising a feeding roller (101), a slitting unit (102), and a traction unit (103) disposed on a frame support plate (1), wherein the feeding roller (101) is used to place the raw material roll (2), and the traction unit (103) is located after the slitting unit (102) to pull the raw material (3) into the slitting unit (102) and to deliver the slitting carbon fiber prepreg strips, wherein the raw material (3) has a three-layer structure, comprising, from top to bottom, release paper, carbon fiber prepreg web, and PE film, characterized in that, A replacement unit (104) and a laminating unit (105) are provided between the feeding roller (101) and the slitting unit (102). The replacement unit (104) is used to replace the release paper on the upper layer of the raw material with a PE film of the same type as the lower layer. The laminating unit (105) is provided with a hot-pressing roller, which is used to hot-press and attach the PE film replacing the upper layer of the raw material and pull it out. A speed sensor (5) is provided next to the feeding roller (101) to measure the speed at which the feeding roller feeds the raw material. A connecting unit (106) is provided between the feeding roller (101) and the replacement unit (104). 106) is used to connect the front and rear rolls of raw materials when the machine stops and rewinds. A tension sensing roller (6) is provided between the connecting unit (106) and the replacement unit (104). The tension sensing roller (6) is used to sense the traction force of the hot pressing roller of the coating unit (105) on the raw material and then adjust the speed at which the stable feeding roller (101) sends out the raw material (3). A floating tension balancing roller (7) is provided between the coating unit (105) and the slitting unit (102). The floating tension balancing roller (7) is used to balance the traction force of the traction unit (103) on the raw material to be cut, so that the tension of the raw material to be cut is constant and passes through the slitting unit (102) smoothly.
2. The slitting system according to claim 1, characterized in that, The replacement unit (104) includes a release paper take-up roller (104-1) and a PE film unwind roller (104-2) arranged in the order of the raw material (3). A cooling roller (104-4) and a release paper peeling roller (104-3) are arranged before the release paper take-up roller (104-1). After the raw material (3) comes out of the connecting unit (106), it first passes through the tension sensing roller (6), and then passes through the cooling roller (104-4) to the release paper peeling roller (104-3). The release paper peeled off by the release paper peeling roller (104-3) is wound onto the release paper take-up roller (104-1). The PE film released by the PE film unwind roller (104-2) replaces the release paper and is attached to the upper surface of the raw material after the release paper is peeled off, and then enters the coating unit (105) together.
3. The slitting system according to claim 1, characterized in that, The floating tension balancing roller (7) is suspended and positioned on the frame support plate (1) by sliding up and down through the groove (701) and the two side guide rails (702) provided on the frame support plate (1). A piston cylinder (703) is provided on the frame support plate (1) above the floating tension balancing roller (7). The telescopic arm of the piston cylinder (703) extends and connects to the floating tension balancing roller (7) to form the floating tension balancing roller (7) suspended on the two side guide rails. The tension of the floating tension balancing roller (7) is balanced by inputting a certain pressure of gas into the piston cylinder (703).
4. The slitting system according to claim 1, 2, or 3, characterized in that, The floating tension balancing roller (7) is provided with a cooling passage to form a primary cooling roller. A secondary cooling roller (8) is provided between the floating tension balancing roller (7) and the slitting unit (102). The primary cooling roller and the secondary cooling roller are used to reduce the temperature of the raw material being slitted, thereby reducing the adhesion of the raw material being slitted.
5. The slitting system according to claim 1, characterized in that, The feeding roller (101) is mounted on a movable frame (9). A bushing (901) is provided in the middle of the movable frame (9). The feeding roller (101) is fixed in the bushing (901) by front and rear double bearings (902). The movable frame (9) is movably positioned on the machine frame support plate (1) by a guide shaft (903). It can move horizontally back and forth perpendicular to the machine frame support plate (1) by a correction linear motor (904) driven by the guide shaft (903). A correction sensor (10) is provided between the connecting unit (106) and the feeding roller (101). The correction sensor (10) is used to sense and capture the lateral edge signal of the material (3) passing through it. The lateral edge signal controls the correction linear motor (904) to correct the material (3) passing through it.
6. The slitting system according to claim 1, characterized in that, The connecting unit (106) includes a new roll fixed-length cutting table (106-1) and a new and old roll docking table (106-2). The new roll fixed-length cutting table (106-1) includes a cutting plate (106-1-1) and a rotatable and openable pressure plate (106-1-2), and a fixed-length cutting opening (106-1-3) is provided on the cutting plate. The new and old roll docking table (106-2) includes a docking platform (106-2-1) and a hot press plate (106-2-2). The docking platform (106-2-1) has a fixed-length cutting opening (106-1-3). The surface is provided with air holes (106-2-3). An air pump is connected to the air holes of the docking platform (106-2-1) to form an adsorption platform on the surface of the docking platform. A cut-out for the end of the old roll (106-2-4) is provided in the middle of the surface of the docking platform (106-2-1). The hot press plate (106-2-2) is driven by a cylinder and is located on the upper side of the middle position of the surface of the docking platform (106-2-1). A release paper adsorption shaft (106-2-5) is also provided above the surface of the docking platform (106-2-1).
7. The slitting system according to claim 1, characterized in that, The speed sensor (5) is a roller contact speed sensor. The roller of the sensor is fixed on the frame support plate (1) next to the feed roller (101) by a free movable arm (501). When measuring speed, the roller of the speed sensor (5) is placed on the raw material roll (2) on the feed roller to test the linear speed of the raw material output.
8. The slitting system according to claim 1, characterized in that, The slitting unit (102) includes an upper cutting roller (102-1) and a lower cutting roller (102-2) mounted on a unit frame (102-5). The upper and lower cutting rollers (102-1, 102-2) are axially spaced with cutting edges. The lower cutting roller (102-2) is driven to rotate by a motor. The upper cutting roller (102-1) is equipped with an adjusting arm (102-3) for adjusting the vertical movement of the upper cutting roller (102-1). A positioning device is provided on one side of the unit frame facing the upper cutting roller (102-1). The position sensor (102-4) is used to determine the staggered position of the blades of the upper and lower blade rollers (102-1, 102-2) when adjusting the upper blade roller (102-1). During operation, the blades of the upper and lower blade rollers roll and intersect each other to divide the raw material (3) into strips. The two ends of the upper blade roller (102-1) and the lower blade roller (102-2) are respectively positioned by the center pin (102-6). The center pin (102-6) can be moved back and forth by the hydraulic cylinder to facilitate the replacement of the upper and lower blade rollers.