PVC film roll cutting device
By designing a PVC film roll cutting device that integrates baffle, pressure plate and servo motor-driven mobile rack, tool holder and slitting knife, the problem of multiple pre-processing and stacking in the film cutting process in the prior art is solved, and a more efficient film cutting and processing process is achieved.
Patent Information
- Application Number
- CN202510448557.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-05-30
AI Technical Summary
The existing film cutting machines need to pre-process the PVC film roll before working to make it a better cut block, and the films cut into blocks need to be neatly stacked, which increases the work flow and processing difficulty and reduces production efficiency.
A PVC film roll cutting device is designed. Through the cooperation of the baffle and the press plate, the PVC film roll is first cut into small pieces, and then the cut film is transported by the conveyor to the bottom of the moving frame for further processing. The device realizes automatic cutting and conveying through a servo motor-driven mobile rack, tool holder and slitting knife, reducing the transfer and placement steps of the film.
By completing slicing and cutting in the cutting device, multiple transfers and placement of the film are avoided, workflow is simplified, production efficiency is improved, and the cut film can be placed and processed more neatly.
Smart Images
Figure CN120056200A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of film cutting, in particular to a PVC film roll cutting device. Background Art
[0002] PVC film is a film made of polyvinyl chloride (PVC) material with good transparency, flexibility and chemical resistance. It is widely used in packaging, agricultural covering, architectural decoration and other fields. Since it needs to be attached to the surface of the object to be covered, the PVC film needs to be cut so that its shape can meet the requirements.
[0003] The film cutting machine in the prior art transports the PVC film to the cutting mechanism via a conveyor belt, and the rotating circular knife or the positioning blade cuts the film according to preset parameters. The cut PVC film is sent to the winding mechanism and rolled into standard film rolls. The whole process is coordinated by the PLC control system, and the sensor monitors and feeds back information in real time to ensure the cutting accuracy and stable operation of the equipment.
[0004] Before the film cutting machine in the prior art works, it is necessary to pre-process the PVC film roll to make it into blocks for better cutting. At the same time, the cut PVC film blocks need to be neatly stacked, but this will undoubtedly increase the workflow and difficulty of PVC film processing, thereby reducing production efficiency.
[0005] To this end, the present invention provides a PVC film roll cutting device. Summary of the invention
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the present invention to solve its technical problems is: a PVC film roll cutting device described in the present invention comprises a workbench; a moving frame is slidably connected to the top surface of the workbench, and the moving frame is driven by a servo motor; a knife seat is slidably connected to the surface of the moving frame; a knife is installed on the surface of the knife seat; a conveyor is installed on the top of the workbench and at the bottom of the moving frame; a slide rail is installed on one side of the workbench, and the slide rail is higher than the conveyor; a slitting knife is slidably connected to the surface of the slide rail, and the slitting knife is driven by a servo motor; a mounting frame is fixedly connected to the side of the workbench close to the slide rail; a conveyor and a receiving assembly are provided on the surface of the mounting frame; the conveyor is used to transport the film on the PVC film roll to the conveyor; the receiving assembly is used to place the PVC film roll to be cut; a support frame is set on the top of the workbench; a driving seat is slidably connected to the top of the support frame, and the driving seat is driven by a servo motor; a pair of hydraulic rods are fixedly connected to the bottom of the driving seat; the telescopic ends of the two hydraulic rods are fixedly connected to a pressing plate; and a baffle is slidably connected to one end of the pressing plate close to the moving frame.
[0008] Preferably, the length of the baffle is greater than that of the pressing plate; an installation groove is formed at one end of the baffle away from the moving frame; a pair of toothed plates are slidably connected in the installation groove; limiting plates are respectively installed at the mutually remote ends of the two toothed plates, and the limiting plates are slidably connected with the baffle; a gear is meshed and connected between the two toothed plates; the gear is rotatably connected to the surface of the baffle and is driven by a servo motor.
[0009] Preferably, sealing plates are fixedly connected between the limiting plates and the toothed plates; the whole formed by the two sealing plates is adapted to the notch of the installation groove.
[0010] Preferably, an air cylinder is fixedly connected to the bottom surface of the driving seat; a piston is slidably connected inside the air cylinder; a pair of air guide pipes are fixedly connected to the bottom surface of the piston, and the air guide pipes are fixedly connected to the top surface of the pressing plate; the pressing plate is arranged in a hollow structure, and the air guide pipes are communicated with the inside of the pressing plate; a plurality of uniformly arranged air holes are formed in the bottom surface of the pressing plate.
[0011] Preferably, a limiting ring is fixedly connected to one side of the inner wall of the air hole close to the inside of the pressing plate; a plug rod is slidably connected inside the air hole; the diameter of one end of the plug rod close to the limiting ring is larger than that of the other end away from the limiting ring; a spring is fixedly connected between the end of the plug rod away from the limiting ring and the inner wall of the air hole; an air inlet pipe is fixedly connected to one side of the top of the air cylinder, and a one-way valve is installed in the air inlet pipe.
[0012] Preferably, the conveyor includes a pair of conveying rollers; the conveying rollers are arranged in a hollow structure; a plurality of uniformly arranged through holes are formed in the surface of the driving roller; a plurality of the through holes are slidably connected with extrusion blocks at intervals; an elastic belt is fixedly connected between the extrusion blocks and the inner wall of the conveying roller; a supporting roller is fixedly connected to the middle of the conveying roller; a driving shaft is fixedly connected inside the supporting roller and is driven by a servo motor; a pair of extrusion rings are arranged inside the conveying roller, and the extrusion rings are respectively located on both sides of the supporting roller.
[0013] Preferably, a double-threaded screw rod is commonly threadedly connected between the two extrusion rings; cover plates are fixedly connected to both ends of the driving roller; both ends of the double-threaded screw rod are rotatably connected with the cover plates, and the double-threaded screw rod extends to the outside of the conveying roller; a sliding rod is fixedly connected between the two cover plates; the two extrusion rings are slidably connected with the sliding rod, and the supporting roller is fixedly connected with the sliding rod.
[0014] Preferably, the receiving assembly includes a driving arm and a fixed arm; a support rod is fixedly connected to one side of the driving arm close to the fixed arm; a clamping groove is formed at the corresponding position of the fixed arm for the support rod; a magnet plate is fixedly connected to the bottom of the clamping groove, and the support rod is made of magnetizable metal; a connecting assembly is commonly installed at the ends of the driving arm and the fixed arm away from the support rod; the connecting assembly is installed on the mounting frame.
[0015] Preferably, the connecting component includes a pair of connecting plates, and the connecting plates are rotatably connected to the mounting frame; the active arm is rotatably connected to the connecting plate, and the fixed arm is fixedly connected to the connecting plate; the connecting plates are arranged in an L shape; a pressing rod is rotatably connected to one end of the active arm by the two connecting plates together.
[0016] Preferably, the conveyor includes a pair of driving rollers, and the driving rollers are driven by a motor; a conveyor belt is installed between the two driving rollers; shells are fixedly connected to both sides of the two driving rollers; a support plate is fixedly connected between the two shells and near the top; a plurality of uniformly arranged grooves are fixedly connected to both sides of the receiving plate; sliders are slidably connected in the grooves; elastic pieces are fixedly connected between the sliders and the bottoms of the grooves; rollers are rotatably connected to the top surfaces of the sliders.
[0017] The beneficial effects of the present invention are as follows: 1. For a PVC film roll cutting device of the present invention, through the cooperation of the baffle and the pressing plate, the PVC film roll can be cut into small pieces that are beneficial for processing in advance, and then the cut PVC film is conveyed by the conveyor to the lower part of the moving frame, thereby completing the further processing of the PVC film. Since both slitting and cutting are completed in the embodiments of the present invention, there is no need to transfer and stack the PVC film, thus reducing the working process and improving the working efficiency.
[0018] 2. For a PVC film roll cutting device of the present invention, it is introduced into the pressing plate through the air duct. At this time, the spring pushes the plug rod against the limiting ring, thereby sealing the air hole. When the air pressure inside the pressing plate continuously increases, the gas inside the pressing plate will push the plug rod away from the limiting ring. At this time, the gas inside the pressing plate can quickly and simultaneously discharge from the air hole, thereby blowing off the PVC film adhered to the bottom of the pressing plate. Through the setting of the plug rod, it can be ensured that each air hole can exhaust gas simultaneously, thereby ensuring the uniformity of the force on the PVC film and avoiding the PVC film at the top from being skewed due to uneven force, which may affect the subsequent processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further described below with reference to the drawings.
[0020] Figure 1 is a perspective view of the present invention; Figure 2 is a schematic structural view of the slide rail in the present invention; Figure 3 is a schematic structural view of the sealing plate in the present invention; Figure 4 is a schematic structural view of the pressing plate in the present invention; Figure 5 is a schematic structural view of the mounting frame in the present invention; Figure 6It is a partial cross-sectional view of the conveying roller in the present invention; Figure 7 It is a schematic structural diagram of the fixed arm in the present invention; Figure 8 It is a schematic structural diagram of the support plate in the present invention; Figure 9 It is a schematic structural diagram of the slider in the present invention; In the figure: 1, workbench; 2, moving frame; 3, tool holder; 4, tool; 5, slide rail; 6, slitting knife; 7, mounting rack; 8, support frame; 9, drive seat; 10, hydraulic rod; 12, pressing plate; 13, baffle; 14, mounting groove; 15, toothed plate; 16, limiting plate; 17, gear; 18, sealing plate; 19, air cylinder; 20, piston; 21, air duct; 22, air hole; 23, limiting ring; 24, plug rod; 25, spring; 26, intake pipe; 27, conveying roller; 28, through hole; 29, extrusion block; 30, elastic band; 31, support roller; 32, drive shaft; 33, extrusion ring; 34, double-threaded screw rod; 35, cover plate; 36, slide bar; 37, active arm; 38, fixed arm; 39, support rod; 40, card slot; 41, magnet plate; 42, connecting plate; 43, resisting rod; 44, drive roller; 45, conveyor belt; 46, housing; 47, support plate; 48, groove; 49, slider; 50, elastic piece; 51, roller. Detailed implementation manners
[0021] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.
[0022] Such as Figures 1 to 3As shown, a PVC film roll cutting device according to an embodiment of the present invention comprises a workbench 1; a moving frame 2 is slidably connected to the top surface of the workbench 1, and the moving frame 2 is driven by a servo motor; a knife seat 3 is slidably connected to the surface of the moving frame 2; a knife 4 is installed on the surface of the knife seat 3; a conveyor is installed on the top of the workbench 1 and at the bottom of the moving frame 2; a slide rail 5 is installed on one side of the workbench 1, and the slide rail 5 is higher than the conveyor; a slitting knife 6 is slidably connected to the surface of the slide rail 5, and the slitting knife 6 is driven by a servo motor; the workbench 1 is close to the slide rail 5. A mounting frame 7 is fixedly connected to one side; a conveyor and a receiving assembly are provided on the surface of the mounting frame 7; the conveyor is used to transport the film on the PVC film roll to the conveyor; the receiving assembly is used to place the PVC film roll to be cut; a support frame 8 is set on the top of the workbench 1; a driving seat 9 is slidably connected to the top of the support frame 8, and the driving seat 9 is driven by a servo motor; a pair of hydraulic rods 10 are fixedly connected to the bottom of the driving seat 9; a pressing plate 12 is fixedly connected to the telescopic ends of the two hydraulic rods 10; a baffle 13 is slidably connected to the end of the pressing plate 12 close to the moving frame 2;During operation, before cutting the PVC film, the user needs to slit the PVC film roll. For this purpose, the user can use the embodiment of the present invention. First, the user installs the PVC film roll at the receiving component on the surface of the mounting rack 7. Subsequently, the upper drive seat 9 of the support frame 8 moves, moving the pressing plate 12 and the baffle plate 13 to the side close to the PVC film roll, and pressing the pressing plate 12 and the baffle plate 13 against the conveyor on the top surface of the workbench 1 through the hydraulic rod 10. Then, the conveyor conveys the film on the PVC film roll through the bottom of the slide rail 5 and reaches the baffle plate 13, where it is blocked by the baffle plate 13. Subsequently, the hydraulic rod 10 drives the pressing plate 12 to continue to descend, so that the pressing plate 12 presses the PVC film, thereby fixing the position of the PVC film. Then, the cutting knife 6 on the slide rail 5 slides to cut the PVC film at the bottom of the slide rail 5, so that the PVC film is cut into one piece. Subsequently, the hydraulic rod 10 drives the pressing plate 12 to rise. Since the slide rail 5 is higher than the conveyor, the conveyor can convey another uncut PVC film to the baffle plate 13 and on the top surface of the previously cut PVC film block. Then, by repeating the fixing of the PVC film by the pressing plate 12 and the cutting of the PVC film by the cutting knife 6, the PVC film roll can be cut into film blocks that are convenient for processing. When the slitting is completed, the user drives the pressing plate 12 to rise. Subsequently, the conveyor starts to convey the slit PVC film towards the moving frame 2, so that the end of the PVC film is squeezed by the baffle plate 13, and thus the end of the PVC film can be made more neat. Then, the user drives the pressing plate 12 and the baffle plate 13 to rise so that they no longer block the PVC film. Finally, the conveyor conveys the cut PVC film to the bottom of the moving frame 2. After that, the hydraulic rod 10 drives the pressing plate 12 to descend to fix the stacked PVC films layer by layer. Subsequently, the tool holder 3 on the surface of the moving frame 2 drives the tool 4 to move, so as to cut out the required products on the stacked PVC films. Through the cooperation of the baffle plate 13 and the pressing plate 12, the PVC film roll can be pre-cut into small pieces that are convenient for processing, and then the conveyor conveys the cut PVC film to the lower part of the moving frame 2, thereby completing the further processing of the PVC film. Since the slitting and cutting are both completed in the embodiment of the present invention, there is no need to transfer and stack the PVC film, thus reducing the work process and improving the work efficiency.;
[0023] As Figures 3 to 4As shown, the length of the baffle 13 is greater than that of the pressure plate 12; a mounting groove 14 is provided at one end of the baffle 13 away from the movable frame 2; a pair of tooth plates 15 are slidably connected in the mounting groove 14; a limit plate 16 is installed at one end of the two tooth plates 15 away from each other, and the limit plate 16 is slidably connected to the baffle 13; a gear 17 is meshed and connected between the two tooth plates 15; the gear 17 is rotatably connected to the surface of the baffle 13 and driven by a servo motor; when working, when the end of the PVC film moves to the baffle 13, the servo motor will drive the gear 17 to rotate, Then the gear 17 will drive the two tooth plates 15 on its surface to move toward each other, and the tooth plates 15 moving toward each other will drive the two limit plates 16 to move toward each other, so that the two limit plates 16 can squeeze the two sides of the PVC film, so that the PVC film can be stacked more neatly to facilitate further cutting. When the pressing plate 12 needs to descend, the gear 17 will drive the two tooth plates 15 to move away from each other, so that the two limit plates 16 are also driven by the tooth plates 15 to move away from each other, thereby avoiding the descent of the pressing plate 12 being blocked, so that the pressing plate 12 cannot fix the PVC film normally.
[0024] like Figure 3 As shown, a sealing plate 18 is fixedly connected between the limit plate 16 and the tooth plate 15; the whole formed by the two sealing plates 18 is adapted to the notch of the mounting groove 14; during operation, when the gear 17 with the tooth plate 15 moves toward or away from each other, the tooth plate 15 will first drive the sealing plate 18 at the mounting groove 14 to move, and then the sealing plate 18 will drive the limit plate 16 to move, and through the setting of the sealing plate 18, when the two limit plates 16 move, there will always be a sealing plate 18 at the notch of the mounting groove 14 between the two limit plates 16, thereby preventing the PVC film from being directly inserted into the mounting groove 14 or being involved in the tooth plate 15 and the gear 17, thereby causing damage to the embodiment of the present invention.
[0025] like Figures 1 to 4 As shown, the bottom surface of the driving seat 9 is fixedly connected with an air cylinder 19; a piston 20 is slidably connected inside the air cylinder 19; a pair of air guide tubes 21 are fixedly connected to the bottom surface of the piston 20, and the air guide tubes 21 are fixedly connected to the top surface of the pressing plate 12; the pressing plate 12 is a hollow structure, and the air guide tubes 21 are connected to the inside of the pressing plate 12; a plurality of evenly arranged air holes 22 are opened on the bottom surface of the pressing plate 12; when working, when the hydraulic rod 10 drives the pressing plate 12 to rise, the pressing plate 12 will drive The air guide tube 21 and the piston 20 move upward, thereby pressing the gas inside the air cylinder 19 into the air guide tube 21, and then the gas is introduced into the interior of the pressing plate 12 by the air guide tube 21, and discharged from the air holes 22 on the bottom surface of the pressing plate 12, thereby preventing the PVC film from sticking to the bottom surface of the pressing plate 12 due to the pressing plate 12 and the PVC film being pressed together for a long time before the pressing plate 12 rises, thereby causing the PVC film to fall incorrectly and making it impossible for the PVC films to be neatly stacked together.
[0026] As Figure 4 shown, a limiting ring 23 is fixedly connected to the inner wall of the air hole 22 and on the side close to the inside of the pressing plate 12; a plug rod 24 is slidably connected inside the air hole 22; the diameter of one end of the plug rod 24 close to the limiting ring 23 is larger than that of the end far from the limiting ring 23; a spring 25 is fixedly connected between the end of the plug rod 24 far from the limiting ring 23 and the inner wall of the air hole 22; a side of the top of the air cylinder 19 is fixedly connected with an air inlet pipe 26, and a one-way valve is installed in the air inlet pipe 26; during operation, when the hydraulic rod 10 drives the pressing plate 12 to descend, the pressing plate 12 will pull the air guide pipe 21, so that the air guide pipe 21 pulls the piston 20. At this time, the air cylinder 19 will inhale air through the air pipe. When the pressing plate 12 ascends, the pressing plate 12 will drive the air guide pipe 21 and the piston 20 to ascend. Also, because a one-way valve is installed at the air inlet pipe 26, the gas in the air cylinder 19 will not be discharged from the air inlet pipe 26, but will be introduced into the inside of the pressing plate 12 through the air guide pipe 21. At this time, the spring 25 pushes the plug rod 24 against the limiting ring 23, thereby sealing the air hole 22. When the air pressure inside the pressing plate 12 continuously increases, the gas inside the pressing plate 12 will push the plug rod 24 away from the limiting ring 23. At this time, the gas inside the pressing plate 12 can be quickly discharged from the air hole 22 simultaneously, so as to blow off the PVC film adhered to the bottom of the pressing plate 12. Through the setting of the plug rod 24, it can be ensured that each air hole 22 can exhaust gas simultaneously, thereby ensuring the uniformity of the force on the PVC film, avoiding the PVC film at the top from being skewed due to uneven force, and thus affecting the subsequent processing accuracy.
[0027] As Figure 1 、 Figure 2 、 Figure 5 and Figure 6As shown in the figure, the conveyor includes a pair of conveying rollers 27; the conveying rollers 27 are arranged in a hollow structure; a plurality of through holes 28 are evenly arranged on the surface of the driving roller 44; a plurality of the through holes 28 are slidably connected with extrusion blocks 29 at intervals; an elastic band 30 is fixedly connected between the extrusion blocks 29 and the inner wall of the conveying roller 27; a support roller 31 is fixedly connected to the middle of the conveying roller 27; a driving shaft 32 is fixedly connected inside the support roller 31, and the driving shaft 32 is driven by a servo motor; a pair of extrusion rings 33 are arranged inside the conveying roller 27, and the extrusion rings 33 are respectively located on both sides of the support roller 31; during operation, when the user installs the PVC film roll at the receiving assembly, the user needs to insert the upper film of the PVC film roll between the two conveying rollers 27, and then the user adjusts the position of the extrusion ring 33 so that the ejected extrusion blocks 29 are just at the two side edges of the PVC film. Also, due to the cooperation between the through holes 28 and the extrusion blocks 29 between the upper and lower driving rollers 44, the extrusion blocks 29 ejected by the top driving roller 44 can just be inserted into the through holes 28 on the surface of the bottom driving roller 44, and the extrusion blocks 29 ejected by the bottom driving roller 44 can also just be inserted into the through holes 28 on the surface of the top driving roller 44. Thus, the driving roller 44 can firmly clamp both sides of the PVC film, facilitating the conveying of the PVC film by the conveying roller 27 and avoiding the phenomenon of slipping between the PVC film and the conveying roller 27 during the conveying process.
[0028] As Figures 5 to 6 shown, a double-threaded screw 34 is commonly threadedly connected between the two extrusion rings 33; cover plates 35 are fixedly connected to both ends of the driving roller 44; both ends of the double-threaded screw 34 are rotatably connected to the cover plates 35, and the double-threaded screw 34 extends outside the conveying roller 27; a sliding rod 36 is fixedly connected between the two cover plates 35; the two extrusion rings 33 are slidably connected to the sliding rod 36, and the support roller 31 is fixedly connected to the sliding rod 36; during operation, when the user needs to adjust the position of the extrusion ring 33, the user only needs to turn the double-threaded screw 34 at the cover plate 35 to drive the extrusion rings 33 on both sides of the support roller 31 to approach or move away from each other, and then the symmetrically arranged extrusion blocks 29 on both sides of the support roller 31 are ejected synchronously, thereby realizing the adaptation of the conveying roller 27 to PVC films of different widths.
[0029] As Figure 1 、 Figure 5 Figure 7As shown, the receiving component includes a driving arm 37 and a fixed arm 38; on the side of the driving arm 37 close to the fixed arm 38, a support rod 39 is fixedly connected; at the position corresponding to the support rod 39 on the fixed arm 38, a clamping groove 40 is formed; at the bottom of the clamping groove 40, a magnet plate 41 is fixedly connected, and the support rod 39 is made of magnetizable metal; at the ends of the driving arm 37 and the fixed arm 38 away from the support rod 39, a connecting component is commonly installed; the connecting component is installed at the mounting bracket 7; during operation, when the user needs to fix the PVC film roll, the user needs to rotate the driving arm 37 to drive the support rod 39 away from the clamping groove on the fixed arm 38. At this time, the user can sleeved the PVC film roll on the surface of the support rod 39, and then the user rotates the driving arm 37 again to make the support rod 39 fall back into the clamping groove and be adsorbed by the magnet block, thereby fixing the support rod 39. Thus, the rapid feeding of the PVC film roll can be completed, thereby reducing the replacement difficulty of the user and improving the usability of the embodiment of the present invention.
[0030] As Figure 5 and Figure 7 shown, the connecting component includes a pair of connecting plates 42, and the connecting plates 42 are rotatably connected to the mounting bracket 7; the driving arm 37 is rotatably connected to the connecting plates 42, and the fixed arm 38 is fixedly connected to the connecting plates 42; the connecting plates 42 are arranged in an L shape; a pressing rod 43 is commonly rotatably connected to the ends of the two connecting plates 42 and the driving arm 37; during operation, after the user installs the PVC film roll on the support rod 39, the user also needs to rotate the connecting plates 42 to make the driving arm 37 and the fixed arm 38 at the end of the connecting plates 42 rotate to the bottom, while the pressing rod 43 rotates to the top, so that the pressing rod 43 presses the PVC film drawn out from the PVC film roll, thereby ensuring the tension state of the PVC film and avoiding wrinkles on the surface of the PVC film.
[0031] As Figure 1 、 Figure 2 and Figure 9As shown, the conveyor includes a pair of drive rollers 44, and the drive rollers 44 are driven by a motor; a conveyor belt 45 is installed between the two drive rollers 44; shells 46 are fixedly connected to both sides of the two drive rollers 44; a support plate 47 is fixedly connected between the two shells 46 and near the top; a plurality of evenly arranged grooves 48 are fixedly connected to both sides of the receiving plate; a slider 49 is slidably connected in the groove 48; a spring piece 50 is fixedly connected between the slider 49 and the bottom of the groove 48; a roller 51 is rotatably connected to the top surface of the slider 49; during operation, when the user presses down the pressing plate 12 and squeezes the PVC film, the pressing plate 12 will also squeeze the roller 51 under the conveyor belt 45 through the PVC film, so that the roller 51 and the slider 49 are pressed into the groove 48 on the surface of the support plate 47 and compress the spring piece 50, thereby enabling the conveyor belt 45 at the top to fit on the surface of the support plate 47. At this time, the support plate 47 can provide a supporting force for the PVC film on the surface of the conveyor belt 45, so as to cooperate with the pressing plate 12 to clamp the PVC film. At the same time, when the pressing plate 12 does not squeeze the conveyor belt 45 through the PVC film, the compressed spring piece 50 recovers, and the spring piece 50 pushes the slider 49 out of the groove 48, so that the roller 51 at the top of the slider 49 can support the conveyor belt 45. At this time, when the conveyor belt 45 is driven by the two drive rollers 44, the roller 51 can lift the conveyor belt 45 and keep it away from the support plate 47, thereby preventing the support plate 47 from being continuously worn by the friction of the conveyor belt 45.
[0032] During operation, before cutting the PVC film, the user needs to slit the PVC film roll. For this purpose, the user can use the embodiment of the present invention. First, the user installs the PVC film roll at the receiving component on the surface of the mounting frame 7. Subsequently, the upper driving seat 9 of the support frame 8 moves, moving the pressing plate 12 and the baffle plate 13 to one side close to the PVC film roll, and pressing the pressing plate 12 and the baffle plate 13 against the conveyor on the top surface of the workbench 1 through the hydraulic rod 10. Then, the conveyor feeds the film on the PVC film roll through the bottom of the slide rail 5 and reaches the baffle plate 13, where it is blocked by the baffle plate 13. Subsequently, the hydraulic rod 10 drives the pressing plate 12 to continue to descend, so that the pressing plate 12 presses the PVC film, thereby fixing the position of the PVC film. Then, the cutting knife 6 on the slide rail 5 slides to cut the PVC film at the bottom of the slide rail 5, so that the PVC film is cut into one piece. Subsequently, the hydraulic rod 10 drives the pressing plate 12 to rise. Since the slide rail 5 is higher than the conveyor, the conveyor can feed another uncut PVC film to the baffle plate 13 and on the top surface of the previously cut PVC film block. Then, by repeating the fixing of the PVC film by the pressing plate 12 and the cutting of the PVC film by the cutting knife 6, the PVC film roll can be cut into film blocks convenient for processing. When the slitting is completed, the user drives the pressing plate 12 to rise. Subsequently, the conveyor starts to transport the slit PVC film towards the moving frame 2, so that the end of the PVC film is squeezed by the baffle plate 13, making the end of the PVC film neater. Subsequently, the user drives the pressing plate 12 and the baffle plate 13 to rise so that they no longer block the PVC film. Finally, the conveyor transports the cut PVC film to the bottom of the moving frame 2. Then, the hydraulic rod 10 drives the pressing plate 12 to descend again to fix the stacked PVC films layer by layer. Subsequently, the tool holder 3 on the surface of the moving frame 2 drives the tool 4 to move, thereby cutting out the required products on the stacked PVC films. Through the cooperation of the baffle plate 13 and the pressing plate 12, the PVC film roll can be pre-cut into small pieces conducive to processing, and then the conveyor transports the cut PVC film to the lower part of the moving frame 2, thus completing the further processing of the PVC film. Since the slitting and cutting are both completed in the embodiment of the present invention, there is no need to transfer and stack the PVC film, thereby reducing the work process and improving the work efficiency.
[0033] After the end of the PVC film moves to the baffle 13, the servo motor drives the gear 17 to rotate. Then the gear 17 drives the two toothed plates 15 on its surface to move towards each other. Next, the toothed plates 15 moving towards each other drive the two limit plates 16 to move towards each other, so that the two limit plates 16 can squeeze the two sides of the PVC film, and further make the PVC film stacked more neatly, which is convenient for further cutting later. When the pressing plate 12 needs to descend, the gear 17 drives the two toothed plates 15 to move away from each other, so that the two limit plates 16 also move away from each other driven by the toothed plates 15, thus preventing the descent of the pressing plate 12 from being blocked and making the pressing plate 12 unable to fix the PVC film normally.
[0034] When the gear 17 drives the toothed plate 15 to move towards or away from each other, the toothed plate 15 first drives the sealing plate 18 at the installation groove 14 to move, and then the sealing plate 18 drives the limit plate 16 to move. Through the setting of the sealing plate 18, when the two limit plates 16 move, there is always a sealing plate 18 at the notch of the installation groove 14 between the two limit plates 16, thus preventing the PVC film from directly inserting into the installation groove 14 or being involved in the toothed plate 15 and the gear 17, and further causing damage to the embodiments of the present invention.
[0035] When the hydraulic rod 10 drives the pressing plate 12 to rise, the pressing plate 12 drives the air guide pipe 21 and the piston 20 to move upward, so as to press the gas inside the air cylinder 19 into the air guide pipe 21, and then import it into the inside of the pressing plate 12 through the air guide pipe 21 and discharge it from the air holes 22 at the bottom surface of the pressing plate 12, thus preventing the PVC film from sticking to the bottom surface of the pressing plate 12 due to the pressing plate 12 and the PVC film being pressed together for a long time before the pressing plate 12 rises, resulting in the incorrect falling of the PVC film and making the PVC film unable to be stacked neatly together.
[0036] When the hydraulic rod 10 drives the pressing plate 12 to descend, the pressing plate 12 pulls the air guide pipe 21, so that the air guide pipe 21 pulls the piston 20. At this time, the air cylinder 19 inhales through the air pipe. When the pressing plate 12 rises, the pressing plate 12 drives the air guide pipe 21 and the piston 20 to rise. Also, since a one-way valve is installed at the air inlet pipe 26, the gas in the air cylinder 19 will not be discharged from the air inlet pipe 26, but will be imported into the inside of the pressing plate 12 through the air guide pipe 21. At this time, the spring 25 pushes the plug rod 24 against the limit ring 23, thus sealing the air hole 22. When the air pressure inside the pressing plate 12 continuously increases, the gas inside the pressing plate 12 will push the plug rod 24 away from the limit ring 23. At this time, the gas inside the pressing plate 12 can be quickly discharged from the air holes 22 at the same time, thus blowing off the PVC film stuck to the bottom of the pressing plate 12. Through the setting of the plug rod 24, each air hole 22 can discharge air at the same time, thus ensuring the uniformity of the force on the PVC film and preventing the PVC film at the top from being skewed due to uneven force, which affects the subsequent processing accuracy.
[0037] After the user installs the PVC film roll at the receiving component, the user needs to insert the upper film of the PVC film roll between the two conveying rollers 27. Then, the user adjusts the position of the extrusion ring 33 so that the extrusion blocks 29 ejected by it are just at the two side edges of the PVC film. Also, due to the cooperation between the through holes 28 between the upper and lower driving rollers 44 and the extrusion blocks 29, the extrusion blocks 29 ejected by the top driving roller 44 can just be inserted into the through holes 28 on the surface of the bottom driving roller 44, and the extrusion blocks 29 ejected by the bottom driving roller 44 can also just be inserted into the through holes 28 on the surface of the top driving roller 44. Thus, the driving rollers 44 can firmly hold both sides of the PVC film, facilitating the conveying of the PVC film by the conveying rollers 27 and avoiding the phenomenon of slipping between the PVC film and the conveying rollers 27 during the conveying process.
[0038] When the user needs to adjust the position of the extrusion ring 33, the user only needs to turn the double-threaded screw 34 at the cover plate 35, which can drive the extrusion rings 33 on both sides of the support roller 31 to approach or move away from each other. Thus, the symmetrically arranged extrusion blocks 29 on both sides of the support roller 31 are ejected synchronously, realizing the adaptation of the conveying rollers 27 to PVC films of different widths.
[0039] When the user needs to fix the PVC film roll, the user needs to rotate the active arm 37 to drive the support rod 39 away from the clamping groove at the fixed arm 38. At this time, the user can put the PVC film roll on the surface of the support rod 39. Then, the user rotates the active arm 37 again so that the support rod 39 falls back into the clamping groove and is adsorbed by the magnet block, thus fixing the support rod 39. In this way, the rapid loading of the PVC film roll can be completed, reducing the replacement difficulty for the user and improving the usability of the embodiment of the present invention.
[0040] After the user installs the PVC film roll on the support rod 39, the user also needs to rotate the connecting plate 42 so that the active arm 37 and the fixed arm 38 at the end of the connecting plate 42 rotate to the bottom, while the abutting rod 43 rotates to the top, so that the abutting rod 43 presses the PVC film drawn out from the PVC film roll, ensuring the taut state of the PVC film and avoiding wrinkles on the surface of the PVC film.
[0041] When the user presses down the pressing plate 12 and squeezes the PVC film, the pressing plate 12 will also squeeze the roller 51 under the conveyor belt 45 through the PVC film, so that the roller 51 and the slider 49 are pressed into the groove 48 on the surface of the support plate 47, and the elastic piece 50 is compressed. Furthermore, the conveyor belt 45 at the top can be attached to the surface of the support plate 47. At this time, the support plate 47 can provide a supporting force for the PVC film on the surface of the conveyor belt 45, so as to cooperate with the pressing plate 12 to clamp the PVC film. At the same time, when the pressing plate 12 does not squeeze the conveyor belt 45 through the PVC film, the compressed elastic piece 50 resumes, and the elastic piece 50 pushes the slider 49 out of the groove 48. Furthermore, the roller 51 on the top of the slider 49 can support the conveyor belt 45. At this time, when the conveyor belt 45 is driven by the two driving rollers 44, the roller 51 can lift the conveyor belt 45 and keep it away from the support plate 47, so as to prevent the support plate 47 from being worn due to continuous friction with the conveyor belt 45.
[0042] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.
Claims
1. A PVC film roll cutting device, characterized in that: The invention comprises a workbench (1); the top surface of the workbench (1) is slidably connected to a moving frame (2), and the moving frame (2) is driven by a servo motor; the surface of the moving frame (2) is slidably connected to a knife seat (3); a knife (4) is installed on the surface of the knife seat (3); a conveyor is installed on the top of the workbench (1) and at the bottom of the moving frame (2); a slide rail (5) is installed on one side of the workbench (1), and the slide rail (5) is higher than the conveyor; a slitting knife (6) is slidably connected to the surface of the slide rail (5), and the slitting knife (6) is driven by a servo motor; a tool (4) is fixedly connected to the side of the workbench (1) close to the slide rail (5) The mounting frame (7) comprises a conveyor and a receiving assembly on the surface of the mounting frame (7); the conveyor is used to convey the film on the PVC film roll to the conveyor; the receiving assembly is used to place the PVC film roll to be cut; a support frame (8) is mounted on the top of the workbench (1); the top of the support frame (8) is slidably connected to a driving seat (9), and the driving seat (9) is driven by a servo motor; a pair of hydraulic rods (10) are fixedly connected to the bottom of the driving seat (9); the telescopic ends of the two hydraulic rods (10) are fixedly connected to a pressing plate (12); and the end of the pressing plate (12) close to the moving frame (2) is slidably connected to a baffle (13).
2. A PVC film roll cutting device according to claim 1, characterized in that: The length of the baffle (13) is greater than the length of the pressure plate (12); a mounting groove (14) is provided at one end of the baffle (13) away from the movable frame (2); a pair of tooth plates (15) are slidably connected in the mounting groove (14); a limit plate (16) is installed at one end of the two tooth plates (15) away from each other, and the limit plate (16) is slidably connected to the baffle (13); a gear (17) is meshedly connected between the two tooth plates (15); the gear (17) is rotatably connected to the surface of the baffle (13) and driven by a servo motor.
3. A PVC film roll cutting device according to claim 2, characterized in that: A sealing plate (18) is fixedly connected between the limit plate (16) and the tooth plate (15); the whole formed by the two sealing plates (18) is adapted to the notch of the installation groove (14).
4. The PVC film roll cutting device according to claim 1, characterized in that: The bottom surface of the driving seat (9) is fixedly connected to an air cylinder (19); a piston (20) is slidably connected inside the air cylinder (19); a pair of air guide tubes (21) are fixedly connected to the bottom surface of the piston (20), and the air guide tubes (21) are fixedly connected to the top surface of the pressing plate (12); the pressing plate (12) is a hollow structure, and the air guide tubes (21) are connected to the inside of the pressing plate (12); and a plurality of evenly arranged air holes (22) are provided on the bottom surface of the pressing plate (12).
5. A PVC film roll cutting device according to claim 4, characterized in that: A limiting ring (23) is fixedly connected to the inner wall of the air hole (22) and one side close to the inside of the pressure plate (12); a blocking rod (24) is slidably connected to the inside of the air hole (22); the diameter of the blocking rod (24) close to the limiting ring (23) is larger than the diameter of the end away from the limiting ring (23); a spring (25) is fixedly connected between the end of the blocking rod (24) away from the limiting ring (23) and the inner wall of the air hole (22); an air inlet pipe (26) is fixedly connected to one side of the top of the air cylinder (19), and a one-way valve is installed in the air inlet pipe (26).
6. The PVC film roll cutting device according to claim 1, characterized in that: The conveyor comprises a pair of conveying rollers (27); the conveying rollers (27) are hollow structures; a plurality of evenly arranged through holes (28) are formed on the surface of the driving roller (44); a plurality of through holes (28) are slidably connected to extrusion blocks (29) at intervals; an elastic belt (30) is fixedly connected between the extrusion blocks (29) and the inner wall of the conveying roller (27); a supporting roller (31) is fixedly connected to the middle of the conveying roller (27); a driving shaft (32) is fixedly connected to the inside of the supporting roller (31), and the driving shaft (32) is driven by a servo motor; a pair of extrusion rings (33) are arranged inside the conveying roller (27), and the extrusion rings (33) are respectively located on both sides of the supporting roller (31).
7. A PVC film roll cutting device according to claim 6, characterized in that: A double-thread screw (34) is commonly threadedly connected between the two extrusion rings (33); both ends of the driving roller (44) are fixedly connected to a cover plate (35); both ends of the double-thread screw (34) are rotatably connected to the cover plate (35), and the double-thread screw (34) extends to the outside of the conveying roller (27); a sliding rod (36) is fixedly connected between the two cover plates (35); the two extrusion rings (33) are slidably connected to the sliding rod (36), and the supporting roller (31) is fixedly connected to the sliding rod (36).
8. The PVC film roll cutting device according to claim 1, characterized in that: The receiving assembly comprises an active arm (37) and a fixed arm (38); a support rod (39) is fixedly connected to the active arm (37) at a side close to the fixed arm (38); a clamping groove (40) is provided on the fixed arm (38) at a position corresponding to the support rod (39); a magnet plate (41) is fixedly connected to the bottom of the clamping groove (40), and the support rod (39) is made of magnetizable metal; a connecting assembly is commonly installed at one end of the active arm (37) and the fixed arm (38) away from the support rod (39); and the connecting assembly is installed on the mounting frame (7).
9. A PVC film roll cutting device according to claim 8, characterized in that: The connection assembly comprises a pair of connection plates (42), and the connection plates (42) are rotatably connected to the mounting frame (7); the active arm (37) is rotatably connected to the connection plates (42), and the fixed arm (38) is fixedly connected to the connection plates (42); the connection plates (42) are arranged in an L shape; and the two connection plates (42) and one end of the active arm (37) are rotatably connected together with a support rod (43).
10. The PVC film roll cutting device according to claim 1, characterized in that: The conveyor comprises a pair of driving rollers (44), and the driving rollers (44) are driven by a motor; a conveyor belt (45) is installed between the two driving rollers (44); a shell (46) is fixedly connected to both sides of the two driving rollers (44); a support plate (47) is fixedly connected between the two shells (46) and near the top; a plurality of evenly arranged grooves (48) are fixedly connected to both sides of the receiving plate; a slider (49) is slidably connected in the groove (48); a spring sheet (50) is fixedly connected between the slider (49) and the bottom of the groove (48); and a roller (51) is rotatably connected to the top surface of the slider (49).