Film splitting machine
By using the combination of adjustment components, pressing rollers and feeding rollers in the film slitting machine, the controllable compression and cutting of the film is solved, and the problem of easy detachment of the film in the prior art is improved, and the cutting efficiency and production efficiency are improved.
Patent Information
- Application Number
- CN202510352506.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-05-09
AI Technical Summary
When existing film slitting machines cut soft and thin films made of PTFE, they can easily lead to damage to the cutting mechanism or the film being pulled and broken, reducing the cutting efficiency.
A film slitting machine is designed, which adopts a combination of adjustment components, pressing rollers and feeding rollers. By adjusting the size of the tightening gap, the film can be controlled to be pressed, so that the film remains tight and not easily pulled. At the same time, the setting of a cutting knife and mounting arm is used to achieve accurate adjustment of the spacing between the cutting knife and feeding rollers.
The cutting efficiency of large roll films is improved, the processing cycle of the film is shortened, the production cost is reduced, and the film is not pulled out during the cutting process.
Smart Images
Figure CN119953947A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of slitting technology, and in particular to a film slitting machine. Background Art
[0002] The film slitting machine is used to accurately cut large rolls of film as needed, achieve precise customization of film size, improve subsequent film production efficiency and optimize the utilization of film materials.
[0003] The film slitting machine mainly includes an unwinding mechanism, a rewinding mechanism and a cutting mechanism. When the film material is relatively soft and thin, such as PTFE, the cutting mechanism is prone to damage the film or the tension of the rewinding mechanism on the film is too large, causing the film to be torn, thereby reducing the cutting efficiency of the film. Summary of the invention
[0004] In order to improve the problem of film cutting efficiency, the present application provides a film slitting machine.
[0005] The present application provides a film slitting machine, which adopts the following technical solution: A film slitting machine comprises a machine body, a winding device, an unwinding assembly and a cutting assembly, wherein the unwinding assembly is connected to the machine body, and is used for winding a large roll of film. The winding device comprises an adjusting assembly, a pressure roller and a feed roller, and the feed roller is rotatably connected to the surface of the machine body, the adjusting assembly is connected to the machine body, and the pressure roller is rotatably connected to the driving end of the adjusting assembly. The adjusting assembly drives the pressure roller to approach the feed roller, and a pressing gap is left between the roller surface of the pressure roller and the roller surface of the feed roller for the film to pass through. The roller surface of the pressure roller and the roller surface of the feed roller press against both sides of the film and roll in contact with the surface of the film. The cutting assembly is connected to the machine body, and the film on the unwinding assembly passes through the pressing gap and enters the cutting assembly, and the cutting end of the cutting assembly cuts the surface of the film.
[0006] By adopting the above technical scheme, a large roll of film is wound on the unwinding component, and the adjusting component drives the pressure roller close to the feed roller so that the size of the contact gap is adapted to the thickness of the film, thereby realizing controllable adjustment of the size of the contact gap. The film on the unwinding component passes through the contact gap and enters the cutting component. The roller surfaces of the pressure roller and the feed roller are pressed against both sides of the film and in rolling contact with the surface of the film. Because the size of the contact gap is adapted to the thickness of the film, the pressure of the roller surfaces of the pressure roller and the feed roller on the film can be controlled and adjusted, so that the film remains in a tensioned state without damaging the film. The cutting component accurately cuts the surface of the film, thereby improving the cutting efficiency of the large roll of film, shortening the processing cycle of the film, and thus reducing the production cost of the film.
[0007] Optionally, the adjusting assembly includes a rotating rod, a swing arm, a connecting arm and a power cylinder, the rotating rod is rotatably connected to the surface of the machine body, the axis of the rotating rod and the axis of the pressure roller are parallel to each other, the end of the swing arm is connected to the surface of the rotating rod, the pressure roller is rotatably connected to the end of the swing arm away from the rotating rod, the end of the connecting arm is connected to the rotating shaft of the rotating rod, the power cylinder is connected to the surface of the machine body, the axis of the power cylinder piston rod and the height direction of the machine body are parallel to each other, the end of the power cylinder piston rod is rotatably connected to the end of the connecting arm away from the rotating rod, and when the power cylinder piston rod is extended, the rotating rod rotates, driving the pressure roller away from the feeding roller.
[0008] By adopting the above technical scheme, the end of the piston rod of the power cylinder is rotatably connected to the end of the connecting arm away from the rotating rod. When the piston rod of the power cylinder is extended, the connecting arm is driven to rotate around the axis of the rotating rod. The end of the connecting arm is connected to the rotating shaft of the rotating rod, driving the rotating rod to rotate around its own axis. The end of the swing arm is connected to the surface of the rotating rod, driving the pressure roller to slide around the axis of the rotating rod in the direction away from the feed roller, thereby realizing precise adjustment of the size of the clamping gap. The film slitting machine can accurately control the clamping force on the film, so that the film is not easily torn due to excessive tension, thereby improving the cutting efficiency of the film.
[0009] Optionally, the cutting assembly includes an adjusting rod, a mounting arm and a cutter, the adjusting rod being rotatably connected to the surface of the machine body, the axis of the adjusting rod and the axis of the feed roller being parallel to each other, one end of the mounting arm being connected to the outer wall of the adjusting rod, the other end of the mounting arm being provided with a mounting hole for the end of the cutter to be embedded, the inner wall of the mounting hole being pressed against the end face of the cutter to form a limit, the cutting end of the cutter facing the feed roller and being able to cut the surface of the film, and the rotation of the adjusting rod can drive the cutter to approach the feed roller.
[0010] By adopting the above technical solution, the end of the cutter is embedded in the mounting hole, and the end face of the cutter is pressed against the inner wall of the mounting hole to form a limit, thereby realizing the installation of the cutter on the mounting arm; when the adjusting rod rotates on the surface of the machine body, one end of the mounting arm is connected to the adjusting rod, and the other end of the mounting arm is connected to the end of the cutter, driving the cutter to slide around the axis of the adjusting rod toward the direction close to the feed roller, thereby realizing precise adjustment of the distance between the cutter and the feed roller.
[0011] Optionally, the unwinding assembly includes a unwinding roller and a sliding seat, the sliding seat is slidably connected to the surface of the machine body, the sliding direction of the sliding seat and the axis of the feed roller are parallel to each other, the unwinding roller is rotatably connected to the surface of the sliding seat, the axis of the unwinding roller and the axis of the feed roller are parallel to each other, and the roller surface of the unwinding roller is used for winding a large roll of film.
[0012] By adopting the above technical solution, a large roll of film is wound around the surface of the unloading roller, driving the sliding seat to slide on the surface of the machine body, so that the film on the unloading roller faces the surface of the unloading roller, and the end of the film on the unloading roller passes through the abutting gap and enters the cutting assembly, so that the film is not easily offset in the abutting gap, thereby improving the stability of the film passing through the abutting gap.
[0013] Optionally, the winding device also includes a guide roller and a tensioning roller, the tensioning roller and the guide roller are connected to the surface of the machine body in an interval and rotational manner, the axis of the tensioning roller and the axis of the guide roller are parallel to each other, and the axis of the tensioning roller and the axis of the feed roller are parallel to each other, the guide roller is located between the tensioning roller and the unloading roller, and the tensioning roller is located below the unloading roller, the film on the unloading roller passes through the roller surface of the guide roller and the roller surface of the tensioning roller in turn and enters the abutting gap, and the film between the tensioning roller and the feed roller remains in a tensioned state.
[0014] By adopting the above technical scheme, the guide roller is located between the tensioning roller and the unloading roller, and the tensioning roller is located below the unloading roller, the end of the film on the unloading roller passes through the roller surface of the guide roller, the guide roller guides the film to pass through the roller surface of the tensioning roller, the film on the roller surface of the tensioning roller passes through the abutment gap, and the film between the tensioning roller and the unloading roller is kept in a tensioned state, so that the film on the unloading roller can stably pass through the abutment gap, thereby ensuring the stability of film pulling out.
[0015] Optionally, the body is connected to a heat dissipation component, which includes a heat dissipation seat, a first reciprocating screw and a heat dissipation piston. The heat dissipation seat is connected to the surface of the body, and a heat dissipation cavity is defined in the heat dissipation seat for the first reciprocating screw to rotate. The axis of the first reciprocating screw and the axis of the tensioning roller are parallel to each other. The heat dissipation piston is threadedly connected to the outer wall of the first reciprocating screw, and the heat dissipation piston slides on the inner wall of the heat dissipation cavity along the axis of the first reciprocating screw. The heat dissipation piston divides the heat dissipation cavity into two heat dissipation sections, and a heat dissipation hole is defined on the inner wall of the heat dissipation section close to the tensioning roller, and the heat dissipation hole passes through the inner wall of the heat dissipation section and faces the roller surface of the tensioning roller.
[0016] By adopting the above technical scheme, when the first reciprocating screw rotates on the inner wall of the heat dissipation cavity, the heat dissipation piston divides the heat dissipation cavity into two heat dissipation sections. When the heat dissipation piston slides along the axis of the first reciprocating screw toward one of the heat dissipation sections, the air pressure in the heat dissipation section increases, and the air in the heat dissipation section impacts the roller surface of the tensioning roller through the heat dissipation holes. The roller surface of the tensioning roller is in full contact with the air and heat exchange is performed, thereby achieving cooling of the tensioning roller, making it less likely for the tensioning roller to be worn out due to being in a high temperature state for a long time. At the same time, the air pressure in the other heat dissipation section is reduced, driving the air near the tensioning roller into the heat dissipation section through the heat dissipation holes, further driving the air flow around the tensioning roller, and the air is in full contact with the roller surface of the tensioning roller and heat exchange is performed, thereby improving the cooling efficiency of the tensioning roller.
[0017] Optionally, the heat dissipation assembly also includes at least two synchronous wheels and a synchronous belt used in conjunction with the synchronous wheels, the end of the first reciprocating screw rod passes through the inner wall of the heat dissipation cavity and protrudes out of the outer wall of the heat dissipation seat, one of the synchronous wheels is coaxially connected to the rotating shaft of the tensioning roller, and the other synchronous wheel is coaxially connected to the first reciprocating screw rod, and the synchronous belt is tensioned to connect the two synchronous wheels.
[0018] By adopting the above technical solution, one of the synchronous wheels is coaxially connected to the first reciprocating screw, and the other synchronous wheel is coaxially connected to the rotating shaft of the tensioning roller. The synchronous belt is tensioned to connect the two synchronous wheels. When the tensioning roller rotates on the surface of the machine body, it drives the first reciprocating screw to rotate on the inner wall of the heat dissipation cavity. There is no need for an external power device to drive the first reciprocating screw to rotate, which reduces energy loss and embodies the concept of energy saving.
[0019] Optionally, the heat dissipation component also includes a thermal expansion and contraction ring, the inner ring of which is coaxially connected to one of the synchronous wheel surfaces, and the outer ring of which abuts against the synchronous belt surface. When the thermal expansion and contraction ring heats up and expands, the synchronous belt is tensioned to connect the two synchronous wheels.
[0020] By adopting the above technical solution, when the tensioning roller rotates on the surface of the machine body and converts part of the kinetic energy into thermal energy, the tensioning roller transfers part of the thermal energy to the thermal expansion and contraction ring through the synchronous belt. The thermal expansion and contraction ring heats up and expands. The synchronous belt tensions and connects the two synchronous wheels, driving the first reciprocating screw to rotate on the inner wall of the heat dissipation cavity. The first reciprocating screw does not need to rotate all the time and wear out, thereby extending the service life of the film slitting machine.
[0021] Optionally, the mounting arm is connected to a guide assembly, which includes a guide seat, a second reciprocating screw, a one-way valve, a two-way valve, a guide piston, a nozzle one and a two-way nozzle. The guide seat is connected to the surface of the mounting arm, and a guide cavity for the rotation of the second reciprocating screw is provided in the guide seat. The guide piston is threadedly connected to the outer wall of the second reciprocating screw, and the guide piston slides on the inner wall of the guide cavity along the axis of the second reciprocating screw. The inner wall of the guide cavity is provided with an air inlet and an air outlet, and the air inlet and the air outlet hole all penetrate the inner wall of the guide cavity, the one-way valve 1 is connected to the inner wall of the air inlet hole, the one-way valve 1 supplies outside air to enter the air inlet hole, the one-way valve 2 is connected to the inner wall of the air outlet hole, the one-way valve 2 supplies air in the guide cavity to enter the air outlet hole, one end of the nozzle 1 is connected to the inner wall of the air inlet hole, the other end of the nozzle 1 faces the bottom of the cutter, one end of the nozzle 2 is connected to the inner wall of the air outlet hole, the other end of the nozzle 2 faces the cutting end of the cutter, and the film is located between the nozzle 1 and the nozzle 2.
[0022] By adopting the above technical solution, the film is located between nozzle one and nozzle two. When the guide piston slides back and forth on the inner wall of the guide cavity, the air pressure in the guide cavity increases, and the air in the guide cavity passes through the one-way valve two and the air outlet hole in turn and is discharged from the nozzle two. The air impacts the surface of the film and drives the film to press against the cutting end of the cutter, thereby achieving precise cutting of the film surface by the cutting end of the cutter; at the same time, the air pressure in the guide cavity is reduced, and the outside air enters the guide cavity through nozzle one, one-way valve one and the air inlet hole in turn, and the end of the nozzle one faces the bottom of the cutter. The air drives the film to slide in the direction close to the cutting end of the cutter, so that the surface of the film can fit the cutting end of the cutter, thereby ensuring the stability of the cutter in cutting the surface of the film.
[0023] Optionally, the heat dissipation assembly also includes a transmission wheel and an elastic member, the axis of the first reciprocating screw and the axis of the second reciprocating screw are parallel to each other, the end of the second reciprocating screw passes through the inner wall of the transmission cavity and protrudes from the surface of the guide seat, the transmission wheel is coaxially connected to the rotating shaft of the second reciprocating screw, the synchronous belt connects the transmission wheel and the two synchronous wheels, a slideway for the sliding of the heat sink is opened on the surface of the machine body, the sliding direction of the heat sink and the height direction of the machine body are parallel to each other, one end of the elastic member in the elastic force direction is connected to the surface of the heat sink, and the other end of the elastic member in the elastic force direction is connected to the inner wall of the slideway, the elastic member has the elastic force to drive the heat sink to slide in the direction away from the tensioning roller, and the synchronous belt has a tendency to tension the transmission wheel and the two synchronous wheels.
[0024] By adopting the above technical solution, the transmission wheel is coaxially connected to the rotating shaft of the second reciprocating screw, the elastic force of the elastic member drives the heat sink to slide in the direction away from the tensioning roller, and the synchronous belt is tensioned to connect the transmission wheel and the two synchronous wheels. When the tensioning roller rotates, the reciprocating screw one and the reciprocating screw two are driven to rotate around their own axes. There is no need for an external power device to drive the reciprocating screw two to rotate, which reduces energy loss and embodies the concept of energy saving.
[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the adjustment component, the nip roller and the feed roller can realize the controllable adjustment of the pressure of the nip roller surface and the feed roller surface on the film, so that the film is kept in a tensioned state without being damaged. The cutting component can accurately cut the film surface, improve the cutting efficiency of large rolls of film, shorten the processing cycle of the film, and thus reduce the production cost of the film; 2. The setting of the rotating rod, swing arm, connecting arm and power cylinder can realize the precise adjustment of the size of the pressing gap. The film slitting machine can accurately control the pressing force on the film, so that the film is not easily torn due to excessive tension, thereby improving the cutting efficiency of the film; 3. The setting of the adjusting rod, the mounting arm and the cutter drives the cutter to slide around the axis of the adjusting rod toward the direction close to the feed roller, so as to realize the precise adjustment of the distance between the cutter and the feed roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.
[0027] Figure 2 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the cutting component.
[0028] Figure 3 It is a schematic diagram of the local structure in the embodiment of the present application, mainly showing the adjustment components.
[0029] Figure 4 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the closing component.
[0030] Figure 5 It is a cross-sectional view of the guide seat in the embodiment of the present application.
[0031] Figure 6 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the heat dissipation component.
[0032] Explanation of reference numerals: 1. machine body; 11. slideway; 2. winding device; 21. adjusting assembly; 211. rotating rod; 212. swing arm; 213. connecting arm; 2131. embedding groove; 214. power cylinder; 22. pressing roller; 221. pressing gap; 23. feeding roller; 24. guide roller; 25. tensioning roller; 3. unwinding assembly; 31. power motor; 32. power screw rod; 33. unwinding roller; 34. sliding seat; 4. cutting assembly; 41. adjusting rod; 42. mounting arm; 421. mounting hole; 43. cutter; 5. embedding block; 6. closing assembly ;61. Abutment block;62. Cover plate;7. Guide assembly;71. Guide seat;711. Guide cavity;712. Air inlet;713. Air outlet;72. Second reciprocating screw;73. One-way valve one;74. One-way valve two;75. Guide piston;76. Nozzle one;77. Nozzle two;8. Heat dissipation assembly;81. Heat dissipation seat;811. Heat dissipation cavity;8111. Heat dissipation section;812. Heat dissipation hole;82. First reciprocating screw;83. Heat dissipation piston;84. Thermal expansion and contraction ring;85. Transmission wheel;86. Elastic member;87. Synchronous wheel;88. Synchronous belt. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-6 This application is described in further detail.
[0034] The present application embodiment discloses a film slitting machine. Figure 1 and Figure 2A film slitting machine includes a body 1, a winding device 2, an unwinding assembly 3 and a cutting assembly 4. The bottom of the body 1 abuts against the ground to form a support. The unwinding assembly 3, the winding device 2 and the cutting assembly 4 are installed on the body 1 in sequence. The unwinding assembly 3 is used for winding a large roll of film. The winding device 2 drives the film on the unwinding assembly 3 to enter the cutting assembly 4. The cutting assembly 4 cuts the film to achieve precise cutting of the film.
[0035] Reference Figure 1 The unwinding assembly 3 includes a power motor 31, a power screw 32, a feed roller 33 and a sliding seat 34. The power motor 31 is fixed to the surface of the body 1 by bolts. The motor axis of the power motor 31 and the width direction of the body 1 are parallel to each other. The end of the power screw 32 is coaxially fixed on the motor shaft of the power motor 31. The sliding seat 34 is threadedly connected to the outer wall of the power screw 32. The bottom of the sliding seat 34 abuts against the surface of the body 1. The sliding seat 34 slides on the surface of the body 1 along the axis of the power screw 32. The feed roller 33 is rotatably connected to the surface of the sliding seat 34. The axis of the feed roller 33 and the axis of the power screw 32 are parallel to each other, and the roller surface of the feed roller 33 is provided for winding of a large roll of film.
[0036] Reference Figure 2 and Figure 3 The winding device 2 includes an adjusting component 21, a nip roller 22, a feed roller 23, a guide roller 24 and a tensioning roller 25. In the embodiment of the present application, the nip roller 22 is an electrostatic dust removal roller, and the feed roller 23 is rotatably connected to the surface of the body 1. The axis of the feed roller 23 and the axis of the unwinding roller 33 are parallel to each other. The number of the adjusting component 21 and the nip roller 22 can be one or two. In the embodiment of the present application, the number of the adjusting component 21 and the nip roller 22 are both two. The two adjusting components 21 are installed on the surface of the body 1 at intervals, and the feed roller 23 is located between the two adjusting components 21. The nip roller 22 corresponds to the adjusting component 21 one by one and is rotatably connected to the adjusting component 21. The adjusting component 21 drives the nip roller 22 to approach the feed roller 23, and a tight gap 221 is left between the nip roller 22 and the feed roller 23 for the film to pass through.
[0037] Reference Figure 2 and Figure 3The guide roller 24 and the tension roller 25 are connected to the surface of the machine body 1 in an interval rotation manner, the axis of the guide roller 24 and the axis of the tension roller 25 coincide, the axis of the guide roller 24 and the axis of the feed roller 23 are parallel to each other, the guide roller 24 is located between the discharge roller 33 and the tension roller 25, and the tension roller 25 is located below the feed roller 23, the end of the film on the feed roller 23 passes through the roller surface of the guide roller 24 and the roller surface of the tension roller 25 in turn and enters the pressing gap 221, the roller surface of the pressure roller 22 and the roller surface of the feed roller 23 press against both sides of the film and roll in contact with the surface of the film, driving the film to enter the cutting component 4, and the size of the pressing gap 221 is controlled by the adjustment component 21, so that the film in the pressing gap 221 is kept in a tensioned state and will not be damaged, thereby improving the cutting efficiency of the film, shortening the processing cycle of the film, and reducing the production cost of the film.
[0038] Reference Figure 2 and Figure 3 The adjusting component 21 includes a rotating rod 211, a swing arm 212, a connecting arm 213 and a power cylinder 214. The number of the swing arms 212 can be one or two. In the embodiment of the present application, the number of the swing arms 212 is two. The rotating rod 211 is rotatably connected to the surface of the machine body 1. The axis of the rotating rod 211 and the axis of the guide roller 24 are parallel to each other. The ends of the two swing arms 212 are fixed one by one at the two ends of the axis direction of the rotating rod 211. The two ends of the pressure roller 22 in the axis direction are rotatably connected to the ends of the swing arms 212 away from the rotating rod 211. The axis of the pressure roller and the axis of the rotating rod 211 are parallel to each other. The rotating rod 211 is coaxially fixed with an insert 5 at the end of the rotating rod 211. The end of the connecting arm 213 is provided with an embedding groove 2131 for the embedding of the insert 5. The circumferential outer wall of the embedding block 5 is pressed against the inner wall of the embedding groove 2131 to form a limit, so as to realize the installation of the connecting arm 213 and the rotating rod 211.
[0039] Reference Figure 2 and Figure 3 The power cylinder 214 is fixed to the surface of the machine body 1 by bolts, and the axis of the piston rod of the power cylinder 214 is parallel to the height direction of the machine body 1. The end of the piston rod of the power cylinder 214 is rotatably connected to the end of the connecting arm 213 away from the rotating rod 211; when the piston rod of the power cylinder 214 is extended, the connecting arm 213 is driven to rotate around the axis of the rotating rod 211, driving the rotating rod 211 to rotate around its own axis, and the end of the swing arm 212 is connected to the outer wall of the rotating rod 211, driving the pressing roller 22 away from the feeding roller 23, so as to achieve precise adjustment of the size of the pressing gap 221, so that the size of the pressing gap 221 is adapted to the thickness of the film, and the pressure of the roller surface of the pressing roller 22 and the roller surface of the feeding roller 23 on the film can be controlled and adjusted, so that the film remains in a tensioned state and will not be damaged. The cutting component 4 accurately cuts the surface of the film, improves the cutting efficiency of the large roll of film, shortens the processing cycle of the film, and thus reduces the production cost of the film.
[0040] Reference Figure 2 The cutting assembly 4 includes an adjusting rod 41, a mounting arm 42 and a cutter 43. The adjusting rod 41 is rotatably connected to the surface of the machine body 1. The axis of the adjusting rod 41 and the axis of the rotating rod 211 are parallel to each other. The number of mounting arms 42 can be one, two or more. In the embodiment of the present application, the number of mounting arms 42 is two. The ends of the two mounting arms 42 are fixed one by one at the two ends of the axis direction of the adjusting rod 41. The ends of the mounting arms 42 away from the adjusting rod 41 are provided with mounting holes 421 for the end of the cutter 43 to be embedded. When the two ends of the cutter 43 are embedded in the mounting holes 421 on the mounting arms 42 one by one, the end face of the cutter 43 is pressed against the inner wall of the mounting hole 421 to form a limit, the cutting end of the cutter 43 faces the roller surface of the feed roller 23, and the cutting end of the cutter 43 cuts the film passing through the pressing gap 221.
[0041] Reference Figure 2 and Figure 4 When the distance between the cutter 43 and the feed roller 23 needs to be adjusted, the adjusting rod 41 is driven to rotate on the surface of the machine body 1, driving the cutter 43 to move around the axis of the feed roller 23 toward the feed roller 23, so as to achieve precise control of the distance between the cutter 43 and the feed roller 23, without the need to disassemble the cutter 43 to adjust the position, thereby improving the convenience of using the film slitting machine; at the same time, the machine body 1 is connected to a closing component 6, which can achieve directional shielding of the cutter 43, and the closing component 6 includes an abutment block 61 And the cover plate 62, the abutment block 61 is installed on the surface of the body 1 close to the adjusting rod 41, the abutment block 61 is located above the adjusting rod 41, the cover plate 62 is rotatably connected to the surface of the body 1, the rotation axis of the cover plate 62 and the width direction of the body 1 are parallel to each other, when the cover plate 62 rotates in the direction close to the adjusting rod 41, the inner wall of the cover plate 62 abuts against the surface of the abutment block 61 to form a limit, and the inner cavity of the cover plate 62 shields the cutter 43, so that the staff is not easy to hit the cutter 43 and get injured, thereby improving the safety of using the film slitting machine.
[0042] Reference Figure 2 and Figure 5The mounting arm 42 is provided with a guide assembly 7, which guides the film surface to press against the cutting end of the cutter 43; the guide assembly 7 comprises a guide seat 71, a second reciprocating screw rod 72, a one-way valve 73, a one-way valve 74, a guide piston 75, a nozzle 76 and a nozzle 77. The material of the guide piston 75 can be rubber or silicone. In the embodiment of the present application, the material of the guide piston 75 is rubber, which has a certain deformation ability. The guide seat 71 is fixed on the surfaces of the mounting arm 42 away from each other. The surface of the guide seat 71 away from the mounting arm 42 is provided with a guide cavity 711 for the sliding of the second reciprocating screw rod 72. The second reciprocating screw rod The axis 72 and the axis of the feed roller 23 are parallel to each other, the guide piston 75 is threadedly connected to the outer wall of the second reciprocating screw rod 72, the guide piston 75 slides on the inner wall of the guide cavity 711 along the axis of the second reciprocating screw rod 72, and the opposite inner walls of the guide cavity 711 are provided with an air inlet hole 712 and an air outlet hole 713, the air inlet hole 712 and the air outlet hole 713 both penetrate the outer wall of the guide seat 71, the one-way valve 1 73 is installed on the inner wall of the air inlet hole 712, the one-way valve 1 73 supplies outside air to enter the air inlet hole 712, the one-way valve 2 74 is installed on the inner wall of the air outlet hole 713, the one-way valve 2 74 supplies the air in the guide cavity 711 to enter the air outlet hole 713.
[0043] Reference Figure 2 and Figure 5 , one end of the nozzle 1 76 is fixed on the inner wall of the air inlet hole 712, the other end of the nozzle 1 76 faces the bottom of the cutter 43, one end of the nozzle 2 77 is fixed on the inner wall of the air outlet hole 713, the other end of the nozzle 2 77 faces the cutting end of the cutter 43, and the film is located between the nozzle 1 76 and the nozzle 2 77; when the second reciprocating screw 72 rotates on the inner wall of the guide cavity 711 and drives the guide piston 75 to slide in the guide cavity 711, the air pressure in the guide cavity 711 increases, and the air in the guide cavity 711 passes through the one-way valve 2 74 and the air outlet hole 713 in turn and is ejected from the nozzle 2 77, and the air ejected from the nozzle 2 77 impacts the surface of the film and drives The film is pressed against the cutting end of the cutter 43, so that the film is not easily deflected at the cutting end of the cutter 43, and the cutting end of the cutter 43 accurately cuts the surface of the film; when the air pressure in the guide cavity 711 is reduced, the outside air enters the guide cavity 711 through the nozzle 76, the one-way valve 73 and the air inlet 712 in sequence, and the end of the nozzle 76 is directed toward the bottom of the cutter 43, pushing the air flow at the bottom of the film, so that the air flow rate at the top of the film is lower than the air flow rate at the bottom of the film, and the air pressure at the top of the film drives the film to slide in the direction close to the cutter 43, so that the surface of the film is pressed against the cutting end of the cutter 43, thereby improving the cutting efficiency of the film.
[0044] Reference Figure 4 and Figure 6The body 1 is equipped with a heat dissipation component 8, which can cool the surface of the tensioning roller 25. The heat dissipation component 8 includes a heat dissipation seat 81, a first reciprocating screw 82, a heat dissipation piston 83, a thermal expansion and contraction ring 84, a transmission wheel 85, an elastic member 86, at least two synchronous wheels 87 and a synchronous belt 88 used in conjunction with the synchronous wheel 87. The material of the thermal expansion and contraction ring 84 can be a memory alloy or nylon. In the embodiment of the present application, the material of the thermal expansion and contraction ring 84 is a memory alloy with a good thermal expansion coefficient. The material of the heat dissipation piston 83 can be rubber or nylon. In the embodiment of the present application, the material of the heat dissipation piston 83 is rubber with a certain deformation ability. The elastic member 86 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 86 is a compression spring with a certain deformation ability.
[0045] Reference Figure 4 and Figure 6 A slideway 11 is provided on the surface of the machine body 1 for the heat sink 81 to slide, and the sliding direction of the heat sink 81 is parallel to the height direction of the machine body 1. One end of the elastic member 86 in the elastic direction is fixed to the bottom wall of the slideway 11, and the other end of the elastic member 86 in the elastic direction is fixed to the bottom of the heat sink 81. The elastic member 86 has a tendency to drive the heat sink 81 to slide in the direction away from the tensioning roller 25. A heat sink 81 is provided in the heat sink 81 for the first reciprocating screw 82 to rotate. The axis of the first reciprocating screw 82 and the axis of the second reciprocating screw 72 are parallel to each other. The heat sink piston 83 is threadedly connected to the outer wall of the first reciprocating screw 82. The heat sink piston 83 slides on the inner wall of the heat sink cavity 811 along the axis of the first reciprocating screw 82. The heat sink piston 83 separates the heat sink 811 into two heat sink sections 8111. The heat sink section 8111 is close to the outer wall of the first reciprocating screw 82. A heat dissipation hole 812 is provided on the inner wall near the tensioning roller 25. The heat dissipation hole 812 penetrates the inner wall of the heat dissipation section 8111 and faces the roller surface of the tensioning roller 25. When the first reciprocating screw 82 rotates on the inner wall of the heat dissipation cavity 811 and drives the heat dissipation piston 83 to slide along the inner wall of the heat dissipation cavity 811, the air pressure in one of the heat dissipation sections 8111 increases, and the air in the heat dissipation section 8111 impacts the roller surface of the tensioning roller 25 through the heat dissipation hole 812. The roller surface of the tensioning roller 25 is fully in contact with the air and heat exchange is performed, thereby cooling the tensioning roller 25; at the same time, the air pressure in the other heat dissipation section 8111 decreases, and the outside air enters the heat dissipation section 8111 through the heat dissipation hole 812, driving the air flow around the tensioning roller 25, so that the tensioning roller 25 is not easily worn due to long-term operation in a high temperature state, thereby extending the service life of the film slitting machine.
[0046] Reference Figure 4 and Figure 6The end of the first reciprocating screw rod 82 passes through the inner wall of the heat dissipation section 8111 and protrudes from the outer wall of the heat dissipation seat 81, and the end of the second reciprocating screw rod 72 passes through the inner wall of the guide cavity 711 and protrudes from the outer wall of the guide seat 71. One of the synchronous wheels 87 is coaxially fixed on the rotating shaft of the tensioning roller 25, and the other synchronous wheel 87 is coaxially fixed to the end of the first reciprocating screw rod 82 protruding from the heat dissipation seat 81. The transmission wheel 85 is coaxially fixed to the end of the second reciprocating screw rod 72 protruding from the guide seat 71. The synchronous belt 88 is tensioned to connect the transmission wheel 85 and the two synchronous wheels 8 7; When the adjusting rod 41 rotates, the cutter 43 is driven to approach the feed roller 23, and the distance between the first reciprocating screw 82, the second reciprocating screw 72 and the tensioning roller 25 is reduced. The elastic force of the elastic member 86 drives the heat sink 81 to slide along the inner wall of the slideway 11 in the direction away from the tensioning roller 25, so that the synchronous belt 88 is tensioned to connect the transmission wheel 85 and the two synchronous wheels 87. The first reciprocating screw 82 and the second reciprocating screw 72 both rotate around their own axes, without the need for an external power device to drive them, thereby reducing energy loss and reflecting the concept of energy saving.
[0047] Reference Figure 4 and Figure 6 The inner ring of the thermal expansion and contraction ring 84 is coaxially fixed on the wheel surface of the synchronous wheel 87 located on the tensioning roller 25, and the outer ring of the thermal expansion and contraction ring 84 is pressed against the surface of the synchronous belt 88. When the tensioning roller 25 rotates for a long time and converts part of the kinetic energy into thermal energy, the tensioning roller 25 transfers the heat energy to the thermal expansion and contraction ring 84 through the synchronous wheel 87. The thermal expansion and contraction ring 84 heats up and expands, and the synchronous belt 88 is tensioned to connect the transmission wheel 85 and the two synchronous wheels 87, driving the reciprocating screw rod to rotate on the inner wall of the heat dissipation cavity 811, thereby realizing directional cooling of the tensioning roller 25.
[0048] The implementation principle of a film slitting machine in the embodiment of the present application is as follows: when cutting the film, the piston rod of the power cylinder 214 extends out, driving the connecting arm 213 to rotate around the axis of the rotating rod 211, driving the rotating rod 211 to rotate around its own axis, and the end of the swing arm 212 is connected to the outer wall of the rotating rod 211, driving the pressing roller 22 away from the feeding roller 23, so as to achieve precise adjustment of the size of the abutting gap 221, so that the size of the abutting gap 221 is adapted to the thickness of the film, so that the pressure of the roller surface of the pressing roller 22 and the roller surface of the feeding roller 23 on the film can be controlled and adjusted, so that the film remains in a tensioned state and will not be damaged. The large roll of film is wound around the roller surface of the unwinding roller 33, and the roller surface of the guide roller 24 guides the film to pass through the roller surface of the tensioning roller 25, and enters the abutting gap 221 from the roller surface of the tensioning roller 25, and the film passing through the abutting gap 221 enters the cutting end of the cutter 43, and the cutting end of the cutter 43 accurately cuts the surface of the film, thereby improving the cutting efficiency of the large roll of film, shortening the processing cycle of the film, and thus reducing the production cost of the film.
[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A film slitting machine, characterized in that: The invention comprises a machine body (1), a winding device (2), an unwinding assembly (3) and a cutting assembly (4), wherein the unwinding assembly (3) is connected to the machine body (1), and the unwinding assembly (3) is used for winding a large roll of film, the winding device (2) comprises an adjusting assembly (21), a pressing roller (22) and a feeding roller (23), wherein the feeding roller (23) is rotatably connected to the surface of the machine body (1), the adjusting assembly (21) is connected to the machine body (1), the pressing roller (22) is rotatably connected to the driving end of the adjusting assembly (21), and the adjusting assembly (21) is connected to the driving end of the adjusting assembly (21). The joint assembly (21) drives the pressing roller (22) to approach the feeding roller (23), and a close gap (221) is reserved between the roller surface of the pressing roller (22) and the roller surface of the feeding roller (23) for the film to pass through. The roller surface of the pressing roller (22) and the roller surface of the feeding roller (23) are pressed against both sides of the film and are in rolling contact with the surface of the film. The cutting assembly (4) is connected to the machine body (1), and the film on the unwinding assembly (3) passes through the close gap (221) and enters the cutting assembly (4), and the cutting end of the cutting assembly (4) cuts the surface of the film.
2. A film slitting machine according to claim 1, characterized in that: The adjusting assembly (21) comprises a rotating rod (211), a swing arm (212), a connecting arm (213) and a power cylinder (214); the rotating rod (211) is rotatably connected to the surface of the machine body (1); the axis of the rotating rod (211) and the axis of the pressing roller (22) are parallel to each other; the end of the swing arm (212) is connected to the surface of the rotating rod (211); the pressing roller (22) is rotatably connected to the end of the swing arm (212) away from the rotating rod (211); and the connecting arm (213) is connected to the surface of the rotating rod (211). The end is connected to the rotating shaft of the rotating rod (211), the power cylinder (214) is connected to the surface of the machine body (1), the axis of the piston rod of the power cylinder (214) and the height direction of the machine body (1) are parallel to each other, and the end of the piston rod of the power cylinder (214) is rotatably connected to the end of the connecting arm (213) away from the rotating rod (211). When the piston rod of the power cylinder (214) is extended, the rotating rod (211) rotates, driving the pressing roller (22) away from the feeding roller (23).
3. A film slitting machine according to claim 1, characterized in that: The cutting assembly (4) comprises an adjusting rod (41), a mounting arm (42) and a cutter (43); the adjusting rod (41) is rotatably connected to the surface of the machine body (1); the axis of the adjusting rod (41) and the axis of the feed roller (23) are parallel to each other; one end of the mounting arm (42) is connected to the outer wall of the adjusting rod (41); the other end of the mounting arm (42) is provided with a mounting hole (421) for the end of the cutter (43) to be embedded; the inner wall of the mounting hole (421) is pressed against the end surface of the cutter (43) to form a limit; the cutting end of the cutter (43) faces the feed roller (23) and can cut the surface of the film; the rotation of the adjusting rod (41) can drive the cutter (43) to approach the feed roller (23).
4. A film slitting machine according to claim 1, characterized in that: The unwinding assembly (3) comprises an unwinding roller (33) and a sliding seat (34); the sliding seat (34) is slidably connected to the surface of the machine body (1); the sliding direction of the sliding seat (34) and the axis of the feed roller (23) are parallel to each other; the unwinding roller (33) is rotatably connected to the surface of the sliding seat (34); the axis of the unwinding roller (33) and the axis of the feed roller (23) are parallel to each other; and the roller surface of the unwinding roller (33) is used for winding a large roll of film.
5. A film slitting machine according to claim 3, characterized in that: The winding device (2) further comprises a guide roller (24) and a tensioning roller (25), wherein the tensioning roller (25) and the guide roller (24) are connected to the surface of the machine body (1) in an intermittent manner, wherein the axis of the tensioning roller (25) and the axis of the guide roller (24) are parallel to each other, and the axis of the tensioning roller (25) and the axis of the feeding roller (23) are parallel to each other, wherein the guide roller (24) is located between the tensioning roller (25) and the unwinding roller (33), and the tensioning roller (25) is located below the unwinding roller (33), wherein the film on the unwinding roller (33) passes through the roller surface of the guide roller (24) and the roller surface of the tensioning roller (25) in turn and enters the abutting gap (221), and the film between the tensioning roller (25) and the feeding roller (23) is kept in a tensioned state.
6. A film slitting machine according to claim 5, characterized in that: The machine body (1) is connected to a heat dissipation assembly (8), the heat dissipation assembly (8) comprising a heat dissipation seat (81), a first reciprocating screw (82) and a heat dissipation piston (83), the heat dissipation seat (81) being connected to the surface of the machine body (1), a heat dissipation cavity (811) for the first reciprocating screw (82) to rotate is provided in the heat dissipation seat (81), the axis of the first reciprocating screw (82) and the axis of the tensioning roller (25) are parallel to each other, and the heat dissipation piston (83) is threadedly connected to the machine body (1). On the outer wall of the first reciprocating screw (82), the heat dissipation piston (83) slides on the inner wall of the heat dissipation cavity (811) along the axis of the first reciprocating screw (82), and the heat dissipation piston (83) divides the heat dissipation cavity (811) into two heat dissipation sections (8111). The heat dissipation section (8111) is provided with a heat dissipation hole (812) on the inner wall close to the tensioning roller (25), and the heat dissipation hole (812) penetrates the inner wall of the heat dissipation section (8111) and faces the roller surface of the tensioning roller (25).
7. A film slitting machine according to claim 6, characterized in that: The heat dissipation assembly (8) further comprises at least two synchronous wheels (87) and a synchronous belt (88) used in combination with the synchronous wheels (87); the end of the first reciprocating screw (82) passes through the inner wall of the heat dissipation cavity (811) and protrudes out of the outer wall of the heat dissipation seat (81); one of the synchronous wheels (87) is coaxially connected to the rotating shaft of the tensioning roller (25); the other synchronous wheel (87) is coaxially connected to the first reciprocating screw (82); and the synchronous belt (88) is tensioned to connect the two synchronous wheels (87).
8. A film slitting machine according to claim 7, characterized in that: The heat dissipation component (8) also includes a heat expansion and contraction ring (84), the inner ring of the heat expansion and contraction ring (84) is coaxially connected to the wheel surface of one of the synchronous wheels (87), and the outer ring of the heat expansion and contraction ring (84) abuts against the belt surface of the synchronous belt (88). When the heat expansion and contraction ring (84) heats up and expands, the synchronous belt (88) is tensioned to connect the two synchronous wheels (87).
9. A film slitting machine according to claim 7, characterized in that: The mounting arm (42) is connected to a guide assembly (7), the guide assembly (7) comprising a guide seat (71), a second reciprocating screw rod (72), a first check valve (73), a second check valve (74), a guide piston (75), a first nozzle (76) and a second nozzle (77); the guide seat (71) is connected to the surface of the mounting arm (42); a guide cavity (711) for the second reciprocating screw rod (72) to rotate is provided in the guide seat (71); the guide piston (75) is threadedly connected to the outer wall of the second reciprocating screw rod (72); the guide piston (75) slides on the inner wall of the guide cavity (711) along the axis of the second reciprocating screw rod (72); an air inlet hole (712) and an air outlet hole (713) are provided on the inner wall of the guide cavity (711); the air inlet hole (71 2) and the air outlet (713) both penetrate the inner wall of the guide cavity (711); the one-way valve (73) is connected to the inner wall of the air inlet (712); the one-way valve (73) allows outside air to enter the air inlet (712); the one-way valve (74) is connected to the inner wall of the air outlet (713); the one-way valve (74) allows air in the guide cavity (711) to enter the air outlet (713); one end of the nozzle (76) is connected to the inner wall of the air inlet (712); the other end of the nozzle (76) faces the bottom of the cutter (43); one end of the nozzle (77) is connected to the inner wall of the air outlet (713); the other end of the nozzle (77) faces the cutting end of the cutter (43); and the film is located between the nozzle (76) and the nozzle (77).
10. A film slitting machine according to claim 9, characterized in that: The heat dissipation assembly (8) further comprises a transmission wheel (85) and an elastic member (86); the axis of the first reciprocating screw rod (82) and the axis of the second reciprocating screw rod (72) are parallel to each other; the end of the second reciprocating screw rod (72) penetrates the inner wall of the transmission cavity and protrudes from the surface of the guide seat (71); the transmission wheel (85) is coaxially connected to the rotating shaft of the second reciprocating screw rod (72); the synchronous belt (88) connects the transmission wheel (85) and the two synchronous wheels (87); the surface of the machine body (1) is provided with a heat dissipation seat (81 ) sliding slideway (11), the sliding direction of the heat sink (81) and the height direction of the machine body (1) are parallel to each other, one end of the elastic member (86) in the elastic direction is connected to the surface of the heat sink (81), and the other end of the elastic member (86) in the elastic direction is connected to the inner wall of the slideway (11), the elastic member (86) has the tendency to drive the heat sink (81) to slide in a direction away from the tensioning roller (25), and the synchronous belt (88) is tensioned to connect the transmission wheel (85) and the two synchronous wheels (87).