Continuous high-precision composite slitting all-in-one machine

Abstract

The invention discloses a continuous high-precision composite slitting all-in-one machine, and relates to the technical field of composite film processing, the continuous high-precision composite slitting all-in-one machine comprises an L-shaped base plate, a slitting assembly, a T-shaped frame, a first electric telescopic rod and a mounting column, the vertical surface of the base plate is rotatably provided with an air expansion winding shaft and a pair of air expansion unwinding shafts, and the continuous high-precision composite slitting all-in-one machine further comprises a cutting assembly, a T-shaped frame, a first electric telescopic rod and a mounting column; the slitting width of the slitting assembly can be adjusted, the slitting assembly comprises a pair of guide transverse shafts fixed to one side of the base plate, and a plurality of slitting units are installed on the pair of guide transverse shafts in a sliding mode. A sleeve block is driven by a first electric telescopic rod to move, a conductive clamp at the tail end of an L-shaped transmission rod is driven to slide along a spiral resistance wire, resistance value changes are fed back to a controller in real time, a plurality of slitting units are linked with a cross supporting rod to synchronously slide on a guide transverse shaft, and continuous and accurate adjustment of the slitting width is achieved; meanwhile, when the slitting width of the composite film is reduced, the conductive clamp moves to reduce resistance, the power of a cold pressing roller is improved, the binding force of the composite film is strengthened, and slitting warped edges are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of composite film processing, in particular to a continuous high-precision composite slitting machine. Background Art

[0002] Composite film materials (such as multi-layer co-extruded films, aluminized films, and coated films) are widely used in food packaging, pharmaceutical packaging, electronic protection, and new energy battery separators due to their excellent barrier properties, mechanical properties, and functionality. Continuous high-precision composite slitting machines play a crucial role in the composite film production process, efficiently and accurately slitting wide parent rolls into a variety of narrow finished rolls.

[0003] However, existing continuous slitting machines often face the following key technical bottlenecks when dealing with the frequently changing slitting width requirements for composite films, especially when the slitting width is significantly reduced (i.e., when producing narrow-width products), which seriously affects product quality stability and production efficiency: As the slitting width of composite film decreases, its inherent structural strength (especially the support of the edge area) is relatively weakened. Existing equipment generally uses fixed or limited adjustable cooling systems (such as chill rollers and air cooling devices) and pulling tension settings. These settings are often optimized based on standard widths or maximum widths and lack the ability to dynamically and adaptively adjust to the actual slitting width. During narrow-width slitting, the cooling effect isn't specifically enhanced: Narrower film strips have a relatively small heat dissipation area, and differences in cooling rates between the center and edges can easily lead to uneven shrinkage. Furthermore, the pulling tension fails to adaptively decrease accordingly. Excessive tension on the fragile edges of the narrow film strips can easily cause edge warping. This not only severely impacts the product's appearance and smoothness, but can also hinder subsequent processing (such as printing and bag making) or even render the product scrapped. Finally, the slitting process of composite films (especially high-speed slitting) will generate heat, which may cause the material at the film cut to be in a slightly molten state; for narrow slitting, the number of times the slitting knife acts per unit width increases relatively (the same slitting knife needs to cut more narrow films), and the narrow film strips have poor heat dissipation capacity, and local heat accumulation is more significant, so there are limitations. Summary of the Invention

[0004] The purpose of the present invention is to provide a continuous high-precision composite slitting machine to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is: a continuous high-precision composite slitting machine, comprising an L-shaped base plate, on the vertical surface of which an air-expanding reel and a pair of air-expanding unreeling shafts are rotatably mounted, and further comprising: A slitting assembly, wherein the slitting assembly can adjust the slitting width; The slitting assembly includes a pair of guide transverse shafts fixed to one side of the base plate, a plurality of slitting units are slidably mounted on the pair of guide transverse shafts, a cross brace is provided above the plurality of slitting units, the diagonal positions of the cross brace are rotatably connected to a transmission column, the bottom end of the transmission column is plugged into the slitting unit; A T-shaped frame, wherein the T-shaped frame is fixed to the base plate and is fixedly connected to an adjacent transmission column; An electric telescopic rod 1, wherein the output shaft of the electric telescopic rod 1 is fixedly connected to a sleeve block, a connecting shaft is fixed in the sleeve block, and the bottom end of the connecting shaft is fixedly connected to the top of the transmission column directly below; The mounting column is fixed to one side of the base plate, a spiral resistance wire is fixed on the mounting column, an L-shaped transmission rod is fixedly connected to one side of the sleeve block, a conductive clip is fixed at the end of the L-shaped transmission rod, and the conductive clip is in contact with the spiral resistance wire.

[0006] Preferably, the slitting units each include two pairs of booms, which are respectively rotatably mounted with a driving wheel and a driven wheel, the driving wheel and the driven wheel are jointly sleeved with a transmission belt, and the plurality of driving wheels are commonly keyed to a driving key shaft, which is rotatably connected to one side of the base plate.

[0007] Preferably, a pair of brackets are fixed on one side of the base plate, and a hot pressing roller is rotatably installed on each bracket. An extension side frame is fixed on one side of the bracket, and a cold pressing roller is rotatably installed between the extension side frame and the base plate. A pair of guide rollers are rotatably installed on the side of the base plate close to the air-expanding winding shaft.

[0008] Preferably, the vertical end of the base plate is set in a cavity, and both sides of the base plate are detachably and fixedly connected with maintenance side panels. A plurality of motor groups are fixedly installed in the cavity of the base plate, and the plurality of motor groups are respectively fixedly connected to the air expansion unwinding shaft, hot pressing roller, cold pressing roller, drive key shaft and air expansion winding shaft.

[0009] Preferably, a plurality of rubber seats distributed at equal distances are fixed to the outer wall of the transmission belt, and slitting knives are fixed to the ends of the rubber seats.

[0010] Preferably, the lifting rods in each of the slitting units are fixedly connected to a hanging cage frame, and an integrated insert is fixed to the top of the hanging cage frame, which is plugged into the transmission column. The bottom end of the hanging cage frame is fixedly connected to a limiting splint, and the limiting splint and the slitting knife can form a sliding fit.

[0011] Preferably, a fixing recess is fixed on the top of the cage frame, and a rod rack is inserted into the fixing recess, and a cleaning wipe is fixed on one end of the rod rack close to the bottom and on one side close to each other.

[0012] Preferably, the inner side wall of the limiting splint is provided with evenly distributed triangular notches, and a plurality of receiving grooves are provided on both sides of the slitting knife. A torsion spring shaft is installed at one end of the inner side of the receiving groove, and a triangular stop block is installed on the torsion spring shaft.

[0013] Preferably, the spiral resistance wire is electrically connected to the cold pressing roller, a horizontally arranged mounting rod and a top plate are fixedly installed on one side of the base plate, a plurality of touch switches are installed on the bottom side of the mounting rod, a resistance arc head rod is fixedly installed on the top side of the L-shaped transmission rod, a pair of electric telescopic rods 2 are fixed on the top plate and the base plate, and the extension rod end of each electric telescopic rod 2 is fixedly connected to a pressure sensor, the two pressure sensors on the same horizontal plane are commonly fixedly connected to bracket 2, and an adjusting roller is rotatably installed on bracket 2, the touch switch is electrically connected to a controller, the controller is electrically connected to the pressure sensor, and the signal output end of the controller is electrically connected to the electric telescopic rod 2.

[0014] Preferably, a plurality of fans are fixedly mounted on one side of the base plate close to the mounting column, and a bellows is provided below the mounting column. The bellows is fixedly mounted on the base plate, and a plurality of evenly distributed strip air outlets are provided at the bottom of the bellows.

[0015] The present invention provides a continuous high-precision composite slitting machine through improvements, which has the following improvements and advantages compared with the prior art: First, the present invention uses an electric telescopic rod to drive the sleeve to move, causing the conductive clip at the end of the L-shaped transmission rod to slide along the spiral resistance wire. The resistance value change is fed back to the controller in real time. Combined with the cross brace, multiple slitting units are linked to slide synchronously on the guide horizontal axis to achieve continuous and precise adjustment of the slitting width. Second, the transmission belt in the slitting unit of the present invention carries multiple slitting knives in a circular motion. Triangular blocks on either side of the slitting knives engage the triangular notches of the limiting clamping plate under the action of a torsion spring shaft to prevent them from shifting during operation. When moving to the switching position, the triangular blocks are squeezed by the inclined surface and returned to the slot, achieving automatic knife change without stopping the machine and avoiding downtime caused by adhesion. At the same time, as the slitting knives move, the cleaning wipe at the bottom of the rod holder automatically wipes the knife surface to reduce compound adhesion. Third: When the slitting width of the present invention is reduced, the conductive clamp moves to reduce resistance, improve the power of the cold pressing roller, strengthen the bonding force of the composite film, and reduce slitting warping; the L-shaped transmission rod drives the resistance arc head rod to trigger different touch switches; when the slitting width is reduced, the tension force is reduced, the electric telescopic rod is shortened, and the tension force is increased when the width increases to ensure the flatness of the film material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall first-view three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall second-viewing perspective three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the hot pressing roller and the cold pressing roller of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the bellows of the present invention; Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 6 It is a schematic diagram of the three-dimensional structure of the cutting assembly of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the transmission belt and the limiting splint of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the hanging cage frame, the rod insertion frame and the cleaning wipe of the present invention; Figure 9 It is a partial cross-sectional structural diagram of the limiting splint and the slitting knife of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B in the middle.

[0018] Reference numerals: 1. Base plate; 101. Inspection side panel; 102. Top plate; 2. Air-expanding unwinding reel; 3. Air-expanding rewinding reel; 4. Electric telescopic rod (1); 5. Bellows; 501. Strip air outlet; 6. Fan; 7. Hot press roller; 701. Bracket (1); 702. Extended side frame; 8. Cold press roller; 9. Electric telescopic rod (2); 901. Pressure sensor; 10. L-shaped transmission rod; 11. Conductive clamp; 12. Mounting column; 121. Spiral resistance wire; 13. Bracket (2); 131. Adjusting roller; 14. Guide roller; 15. Guide shaft; 151. Suspension rod; 16. Drive key shaft; 17. Drive belt; 171. Drive wheel; 172. Driven wheel; 18. Limiting splint; 181. Triangular notch; 19. Slitting knife; 191. Rubber seat; 20. Cage frame; 21. Fixing recess; 22. Rod rack; 221. Cleaning wipe; 23. T-shaped frame; 24. Insertion tube; 25. Cross brace; 26. Drive column; 27. Mounting rod; 271. Touch switch; 272. Abutment arc rod; 28. Connecting shaft; 281. Bushing; 29. ​​Storage slot; 291. Triangular abutment; 292. Torsion spring shaft. DETAILED DESCRIPTION

[0019] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] The present invention provides a continuous high-precision composite slitting machine through improvement. The technical solution of the present invention is: like Figures 1 to 10 As shown, an embodiment of the present invention provides a continuous high-precision composite slitting machine, comprising an L-shaped base plate 1, on the vertical surface of which an air-expanding reel 3 and a pair of air-expanding unreel 2 are rotatably mounted, and further comprising: Slitting component, the slitting component can adjust the slitting width; The slitting assembly includes a pair of guide transverse shafts 15 fixed to one side of the base plate 1, and multiple slitting units are slidably installed on the pair of guide transverse shafts 15. Cross struts 25 are arranged above the multiple slitting units, and the diagonal positions of the cross struts 25 are rotatably connected to transmission columns 26, and the bottom ends of the transmission columns 26 are inserted into the slitting units; the cross struts 25 are arranged to cooperate with the transmission columns 26 to realize the position adjustment of the slitting assembly and uniformly adjust the distance between the two slitting assemblies to ultimately achieve slitting of composite films of different widths.

[0021] T-shaped frame 23, the T-shaped frame 23 is fixed on the base plate 1, and the T-shaped frame 23 is fixedly connected to the adjacent transmission column 26; The output shaft of the electric telescopic rod 4 is fixedly connected to the sleeve block 281. The sleeve block 281 is fixed with a connecting shaft 28, and the bottom end of the connecting shaft 28 is fixedly connected to the top of the transmission column 26 directly below. The mounting column 12 is fixed to one side of the base plate 1 , and a spiral resistance wire 121 is fixed on the mounting column 12 . An L-shaped transmission rod 10 is fixedly connected to one side of the sleeve block 281 , and a conductive clip 11 is fixed to the end of the L-shaped transmission rod 10 , which is in contact with the spiral resistance wire 121 .

[0022] Through the above structure, the electric telescopic rod 14 drives the sleeve block 281 to drive the conductive clip 11 at the end of the L-shaped transmission rod 10 to move along the spiral resistance wire 121; the position change of the conductive clip 11 causes the resistance value to change, and realizes stepless adjustment of the slitting width.

[0023] Furthermore, the slitting units each include two pairs of booms 151, which are respectively rotatably mounted with a driving wheel 171 and a driven wheel 172. The driving wheel 171 and the driven wheel 172 are jointly sleeved with a transmission belt 17, and the multiple driving wheels 171 are jointly keyed to a driving key shaft 16, which is rotatably connected to one side of the base plate 1.

[0024] Furthermore, a pair of brackets 701 are fixed on one side of the base plate 1, and a hot pressing roller 7 is rotatably installed on each bracket 701. An extension side frame 702 is fixed on one side of the bracket 701, and a cold pressing roller 8 is rotatably installed between the extension side frame 702 and the base plate 1. A pair of guide rollers 14 are rotatably installed on one side of the base plate 1 close to the air-expanding winding shaft 3; the provided guide rollers 14 can improve the stability of the composite film winding after slitting.

[0025] Furthermore, the vertical end of the base plate 1 is set in a cavity, and the maintenance side panels 101 are detachably and fixedly connected on both sides of the base plate 1. A plurality of motor groups are fixedly installed in the cavity of the base plate 1, and the plurality of motor groups are respectively fixedly connected to the air expansion unwinding shaft 2, the hot pressing roller 7, the cold pressing roller 8, the drive key shaft 16 and the air expansion winding shaft 3; the set motor group is used to drive the air expansion unwinding shaft 2, the hot pressing roller 7, the cold pressing roller 8, the drive key shaft 16 and the air expansion winding shaft 3 to rotate.

[0026] As a further embodiment of the present invention, Figure 6-Figure 8 As shown, the outer wall of the transmission belt 17 is fixed with multiple rubber seats 191 distributed at equal distances, and the ends of the rubber seats 191 are fixed with slitting knives 19. It should be noted that the surfaces of the multiple slitting knives 19 are provided with an anti-stick coating to reduce the adhesion of the compound during slitting; by driving the key shaft 16 to rotate, the multiple transmission belts 17 can be driven to rotate synchronously and the slitting knives 19 can be switched.

[0027] Furthermore, the suspension rods 151 in each slitting unit are all fixedly connected to the suspension cage 20, and the top of the suspension cage 20 is fixed with an integrated insert 24, which is plugged into the transmission column 26. The bottom end of the suspension cage 20 is fixedly connected to a limiting splint 18, and the limiting splint 18 and the slitting knife 19 can form a sliding fit. Specifically, the limiting splint 18 limits the slitting knife 19 to move only in the horizontal direction.

[0028] Furthermore, a fixed recess 21 is fixed on the top of the cage frame 20, and a rod rack 22 is inserted in the fixed recess 21, and a cleaning wipe 221 is fixed on one end of the rod rack 22 close to the bottom and on the side close to each other; through the above structure, the limiting splint 18 provided can be used to limit the slitting knife 19, thereby improving the stability of the slitting knife 19 during operation; at the same time, during the switching process of the slitting knife 19, the cleaning wipe 221 on the rod rack 22 can be used to wipe and clean both sides of the slitting knife 19, so that it can maintain a good composite film slitting effect.

[0029] Furthermore, the inner wall of the limiting splint 18 is provided with evenly distributed triangular notches 181, and a plurality of receiving grooves 29 are provided on both sides of the slitting knife 19. A torsion spring shaft 292 is installed at one end of the inner side of the receiving groove 29, and a triangular stop block 291 is installed on the torsion spring shaft 292. Through the above structure, the triangular stop blocks 291 on both sides of the slitting knife 19 are embedded in the triangular notches 181 of the limiting splint 18 under the action of the torsion spring shaft 292, forming a snap-fit ​​relationship, which effectively prevents the slitting during the slitting process. The knife 19 is offset to ensure the stability of the composite film slitting operation; at the same time, when the slitting knife 19 moves following the transmission belt 17, the inclined end of the triangular block 291 is abutted against the inclined surface of the triangular notch 181, so that the triangular block 291 can be deflected and stored in the storage groove 29, so that the transmission belt 17 can smoothly drive the slitting knife 19 to move, thereby realizing the replacement of the slitting knife 19 without stopping the machine and affecting the slitting work of the composite film, so as to effectively reduce the situation where the composite agent sticks to the surface of the slitting knife 19.

[0030] Furthermore, the spiral resistance wire 121 is electrically connected to the cold pressing roller 8, a horizontally arranged mounting rod 27 and a top plate 102 are fixedly installed on one side of the base plate 1, a plurality of touch switches 271 are installed on the bottom side of the mounting rod 27, and a resisting arc head rod 272 is fixedly installed on one side of the top of the L-shaped transmission rod 10. A pair of electric telescopic rods 29 are fixed on the top plate 102 and the base plate 1, and the end of the extension rod of each electric telescopic rod 29 is fixedly connected to a pressure sensor 901, and the two pressure sensors 901 on the same horizontal plane are fixedly connected to the bracket 2 13, and the adjusting roller 131 is rotatably installed on the bracket 2 13. The touch switch 271 is electrically connected to the controller, the controller is electrically connected to the pressure sensor 901, and the signal output end of the controller is electrically connected to the electric telescopic rod 29; Through the above structure, as shown in the attached Figure 6-Figure 7 As shown, when the extension distance of the electric telescopic rod 4 is reduced, the spacing between the multiple slitting units is reduced, which can reduce the slitting width of the composite film and increase the number of slitting units involved in the slitting operation. At the same time, the conductive clamp 11 moves toward the T-shaped frame 23, reducing the resistance in the circuit, thereby increasing the power of the cold pressing roller 8, improving the cold pressing effect on the composite film, and thus improving the composite film laminating effect, thereby reducing the adhesion and warping of the composite film during slitting. On the other hand, when the L-shaped transmission rod 10 moves, it can drive the contact arc rod 272 to move and contact the touch switches 271 at different positions, thereby cooperating with the controller to set different tensions. Specifically, when the slitting width is reduced, the touch switch 271 cooperates with the controller and the pressure sensor 901 to reduce the tension of the composite film, that is, by shortening the electric telescopic rod 29, the tension is reduced, thereby avoiding the warping caused by the reduction in slitting width. In summary, the above structure can enhance the composite effect and reduce slitting defects according to the slitting width of the composite film. On the contrary, when the slitting width increases, the touch switch 271 cooperates with the controller and the pressure sensor 901 to increase the tension of the composite film, that is, by shortening the electric telescopic rod 29, the tension of the composite film is increased, thereby improving the stability of the slitting operation.

[0031] Furthermore, a plurality of fans 6 are fixedly installed on one side of the base plate 1 close to the mounting column 12, and a bellows 5 is provided below the mounting column 12. The bellows 5 is fixedly installed on the base plate 1, and a plurality of evenly distributed strip air outlets 501 are provided at the bottom of the bellows 5. Through the above results, the spiral resistance wire 121 on the mounting column 12 can be cooled by air by utilizing the provided fans 6. At the same time, the generated hot air is collected by the bellows 5 and finally blown out from the strip air outlet 501. While avoiding overheating of the spiral resistance wire 121, the upper base film can also be preheated, thereby assisting in the subsequent compounding.

[0032] The specific working method is as follows: two rolls of base film are released by the air expansion reel 2, heated and laminated by the hot pressing roller 7, and then cooled and shaped by the cold pressing roller 8. According to production needs, the electric telescopic rod 4 pushes the sleeve block 281, and then the connecting shaft 28, the transmission column 26 and the cross support rod 25 cooperate to drive all the slitting units to slide along the guide horizontal axis 15 to adjust the spacing; when the sleeve block 281 moves, the conductive clip 11 at the end of the L-shaped transmission rod 10 slides along the spiral resistance wire 121, and the resistance value change is fed back to the controller in real time to achieve continuous and precise adjustment of the slitting width; at the same time, the composite film is separated When the cutting width is reduced, the conductive clamp 11 moves to reduce the resistance, increase the power of the cold pressing roller 8, strengthen the bonding force of the composite film, and reduce the warping of the slitting edge; on the other hand, when the L-shaped transmission rod 10 moves, it drives the arc head rod 272 to move and resist the touch switches 271 at different positions, thereby cooperating with the controller to set different tensions. Specifically, when the slitting width is reduced, the touch switch 271 cooperates with the controller and the pressure sensor 901 to reduce the tension of the composite film, that is, by shortening the electric telescopic rod 29, the tension is reduced, thereby avoiding the warping caused by the reduction of the slitting width; On the contrary, when the slitting width increases, the touch switch 271 cooperates with the controller and the pressure sensor 901 to increase the tension of the composite film, that is, by shortening the electric telescopic rod 29, the tension of the composite film is increased, thereby improving the stability of the slitting operation; The driving key shaft 16 is used to rotate to drive multiple transmission belts 17 to rotate synchronously, and the slitting knife 19 is switched. The slitting knife 19 is limited by the provided limiting splint 18 to improve the stability of the slitting knife 19 during operation. At the same time, during the switching process of the slitting knife 19, the cleaning wipe 221 on the rod holder 22 can be used to wipe and clean both sides of the slitting knife 19. The triangular blocks 291 on both sides of the slitting knife 19 are embedded in the triangular notches 181 of the limiting splint 18 under the action of the torsion spring shaft 292 to form a card connection. The system effectively prevents the slitting knife 19 from deflecting during the slitting process, thereby ensuring the stability of the composite film slitting operation. At the same time, when the slitting knife 19 moves following the transmission belt 17, the inclined surface end of the triangular abutment 291 abuts against the inclined surface of the triangular notch 181, so that the triangular abutment 291 can be deflected and stored in the storage groove 29, so that the transmission belt 17 smoothly drives the slitting knife 19 to move, thereby realizing the replacement of the slitting knife 19 without stopping the machine and affecting the slitting work of the composite film, thereby effectively reducing the situation where the composite agent sticks to the surface of the slitting knife 19. Finally, the fan 6 is used to cool the spiral resistance wire 121 on the mounting column 12. At the same time, the generated hot air is collected by the bellows 5 and finally blown out from the strip air outlet 501. While avoiding overheating of the spiral resistance wire 121, the upper base film can also be preheated.

[0033] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous high-precision composite slitting machine, comprising an L-shaped base plate (1), on the vertical surface of which an air-expanding reel (3) and a pair of air-expanding unreeling shafts (2) are rotatably mounted, characterized in that: Also includes: A slitting assembly, wherein the slitting assembly can adjust the slitting width; The slitting assembly comprises a pair of guide transverse shafts (15) fixed to one side of the base plate (1), a plurality of slitting units being slidably mounted on the pair of guide transverse shafts (15), a cross brace (25) being provided above the plurality of slitting units, the diagonal positions of the cross brace (25) being rotatably connected to transmission columns (26), the bottom ends of the transmission columns (26) being plugged into the slitting units; A T-shaped frame (23), wherein the T-shaped frame (23) is fixed on the base plate (1), and the T-shaped frame (23) is fixedly connected to an adjacent transmission column (26); An electric telescopic rod (4), wherein the output shaft of the electric telescopic rod (4) is fixedly connected to a sleeve block (281), a connecting shaft (28) is fixed in the sleeve block (281), and the bottom end of the connecting shaft (28) is fixedly connected to the top of the transmission column (26) directly below; A mounting post (12) is fixed to one side of the base plate (1), a spiral resistance wire (121) is fixed to the mounting post (12), an L-shaped transmission rod (10) is fixedly connected to one side of the sleeve block (281), a conductive clip (11) is fixed to the end of the L-shaped transmission rod (10), and the conductive clip (11) is in contact with the spiral resistance wire (121).

2. The continuous high-precision composite slitting machine according to claim 1, characterized in that: The slitting units each comprise two pairs of suspension rods (151), each of the two pairs of suspension rods (151) being rotatably mounted with a driving wheel (171) and a driven wheel (172), the driving wheel (171) and the driven wheel (172) being jointly sleeved with a transmission belt (17), the plurality of driving wheels (171) being jointly keyed to a driving key shaft (16), and the driving key shaft (16) being rotatably connected to one side of the base plate (1).

3. The continuous high-precision composite slitting machine according to claim 2, characterized in that: A pair of brackets (701) are fixed on one side of the base plate (1), and a hot pressing roller (7) is rotatably mounted on each bracket (701). An extension side frame (702) is fixed on one side of the bracket (701), and a cold pressing roller (8) is rotatably mounted between the extension side frame (702) and the base plate (1). A pair of guide rollers (14) are rotatably mounted on one side of the base plate (1) close to the air-expanding reel (3).

4. The continuous high-precision composite slitting machine according to claim 3, characterized in that: The vertical end of the base plate (1) is provided with a cavity, and both sides of the base plate (1) are detachably fixedly connected with maintenance side plates (101), and a plurality of motor groups are fixedly installed in the cavity of the base plate (1), and the plurality of motor groups are respectively fixedly connected to the air expansion unwinding shaft (2), the hot pressing roller (7), the cold pressing roller (8), the driving key shaft (16) and the air expansion winding shaft (3).

5. The continuous high-precision composite slitting machine according to claim 2, characterized in that: A plurality of rubber seats (191) distributed at equal distances are fixed to the outer wall of the transmission belt (17), and slitting knives (19) are fixed to the ends of the rubber seats (191).

6. The continuous high-precision composite slitting machine according to claim 5, characterized in that: The suspension rods (151) in each of the slitting units are fixedly connected to a suspension cage (20), and an integrated plug-in tube (24) is fixed to the top of the suspension cage (20), and the plug-in tube (24) is plugged into the transmission column (26). The bottom end of the suspension cage (20) is fixedly connected to a limiting splint (18), and the limiting splint (18) and the slitting knife (19) can form a sliding fit.

7. The continuous high-precision composite slitting machine according to claim 6, characterized in that: A fixing recess (21) is fixed on the top of the cage frame (20), and a rod insertion frame (22) is inserted into the fixing recess (21). A cleaning wipe (221) is fixed on one end of the rod insertion frame (22) close to the bottom and on one side close to each other.

8. The continuous high-precision composite slitting machine according to claim 7, characterized in that: The inner side wall of the limiting splint (18) is provided with evenly distributed triangular notches (181), and a plurality of receiving slots (29) are provided on both sides of the slitting knife (19). A torsion spring shaft (292) is installed at one end of the inner side of the receiving slot (29), and a triangular stop block (291) is installed on each torsion spring shaft (292).

9. The continuous high-precision composite slitting machine according to claim 3, characterized in that: The spiral resistance wire (121) is electrically connected to the cold pressing roller (8), a horizontally arranged mounting rod (27) and a top plate (102) are fixedly installed on one side of the base plate (1), a plurality of touch switches (271) are installed on the bottom side of the mounting rod (27), a contact arc rod (272) is fixedly installed on one side of the top of the L-shaped transmission rod (10), a pair of electric telescopic rods (9) are fixed on the top plate (102) and the base plate (1), and the extension rod end of each electric telescopic rod (9) is fixedly connected to a pressure sensor (901), the two pressure sensors (901) on the same horizontal plane are fixedly connected to a bracket (13), and an adjustment roller (131) is rotatably installed on the bracket (13), the touch switch (271) is electrically connected to a controller, the controller is electrically connected to the pressure sensor (901), and the signal output end of the controller is electrically connected to the electric telescopic rod (9).

10. The continuous high-precision composite slitting machine according to claim 1, characterized in that: A plurality of fans (6) are fixedly mounted on one side of the base plate (1) close to the mounting column (12), and a bellows (5) is provided below the mounting column (12). The bellows (5) is fixedly mounted on the base plate (1), and a plurality of evenly distributed strip-shaped air outlets (501) are provided at the bottom of the bellows (5).

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