Thin film winding cut-off knife device and method

Abstract

The invention relates to the field of film winding, in particular to a film winding cutter device and method.The film winding cutter device comprises a conveying module, a winding module and a cutter module, the conveying module is adjacent to the winding module, the cutter module is located above the winding module, and the conveying module comprises a tension roller and a contact roller; the conveying module is used for conveying the film to the winding module; the winding module comprises a first winding roller and a second winding roller and is used for continuously winding the film; the cutter module comprises a portal frame, a linear sliding rail, a sliding block, a cutter air cylinder, a cutter, a pressing roller air cylinder and a pressing roller, the cutter module is used for cutting off the thin film and pressing the follow-up thin film into the other winding roller, the thin film winding cutter device can be simplified, the manufacturing and mounting difficulty can be lowered, and the thin film can be continuously wound.

Description

Technical Field

[0001] The invention relates to the field of film winding, and in particular to a film winding and cutting device and method. Background Art

[0002] like Figure 1 As shown, the existing film winding and cutting device usually adopts a swing arm structure, that is, the film winding and cutting device is installed on the swing arm, and the swing arm is connected to the frame. When the film needs to be cut, the cutting device is pressed down by the hydraulic system, and the cutting knife After a small opening is cut at the edge of the film, the knife continues to move laterally along the film until the film is completely cut. However, the film winding and cutting device has a complex structure, is difficult to manufacture and install, and has a high production cost.

[0003] CN215557596U discloses a winding and cutting device for conductive tape, comprising a base, a first baffle and a second baffle are fixedly installed on the left and right sides of the top of the base respectively, a winding roller is movably connected to the side of the first baffle, and limit plates are fixedly installed on the left and right sides of the outer surface of the winding roller, a cutting frame is fixedly installed on the other side of the first baffle, a cutting knife is movably sleeved on the side of the first baffle, and a first slide groove is provided on the surface of the first baffle; an axial groove is provided in the middle of the second baffle, a motor box is fixedly installed on the side of the second baffle, a connecting frame is fixedly connected to the outer surface of the second baffle, one end of the connecting frame is movably connected to a transmission gear, a movable sleeve rod is fixedly installed on the side of the second baffle, a rotating gear is movably connected to the surface of the movable sleeve rod, and a rotating fan blade is fixedly sleeved on the middle of the transmission gear, but this device cannot realize continuous winding of the tape.

[0004] CN210944120U discloses a film winding and cutting device, comprising two symmetrically arranged brackets, and a film supply mechanism, a film cutting mechanism, a film pressing mechanism, and a clamping drum winding mechanism installed on the brackets. The film cutting mechanism is mounted on the two brackets, the film supply mechanism and the clamping drum winding mechanism are respectively arranged on the front and rear sides of the film cutting mechanism, and the film pressing mechanism is arranged below the film cutting mechanism; the film supply mechanism comprises a core shaft for mounting a film roll; the film cutting mechanism comprises a sliding film cutting knife, which moves horizontally; the film pressing mechanism comprises a left film pressing cylinder and a right film pressing cylinder, and U-shaped film pressing blocks are installed at the telescopic rods of the left film pressing cylinder and the right film pressing cylinder, and the left film pressing cylinder and the right film pressing cylinder are respectively fixedly installed on the two brackets, but the device has a complex structure and involves many components.

[0005] It can be seen that how to simplify the film winding and cutting device, reduce the difficulty of manufacturing and installation, and enable the film to be continuously wound is a technical problem that needs to be solved urgently. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a film winding and cutting device and method. The device and method can simplify the film winding and cutting device, reduce the difficulty of manufacturing and installation, and enable continuous winding of the film by adopting a cutting module and a winding module.

[0007] The present invention provides a film winding and cutting device, the device comprises a transmission module, a winding module and a cutting module, the transmission module is arranged adjacent to the winding module, the cutting module is located above the winding module, The conveying module comprises a tension roller and a contact roller, and the conveying module is used to convey the film to the winding module; The winding module comprises a first winding roller and a second winding roller, and the winding module is used to continuously wind the film; The cutter module comprises a gantry, a linear slide rail, a slider, a cutter cylinder, a cutter, a pressure roller cylinder and a pressure roller. The cutter module is used for cutting the film and pressing the subsequent film into another winding roller.

[0008] Further, in the conveying module, the tension roller is located at the far end of the winding module compared to the contact roller, the contact roller is located at the proximal end of the winding module compared to the tension roller, the tension roller is located below the contact roller, and the top of the tension roller and the bottom of the contact roller are tangent to the same horizontal plane, the tension roller is used to stretch the film, and the contact roller is used to convey the film to the winding module.

[0009] Further, in the winding module, the first winding roller is located at the proximal end of the conveying module compared to the second winding roller, and the second winding roller is located at the distal end of the conveying module compared to the first winding roller, and the first winding roller and the second winding roller are used to wind the film.

[0010] Furthermore, in the cutter module, the linear slide rail is provided directly below or on the side of the gantry beam, the slider is provided on the linear slide rail, and the linear slide rail and the slider are used to slide the cutter from one side of the film to the other side.

[0011] Furthermore, in the cutter module, a cutter cylinder is provided on the slider, a cutter is provided at the end of the piston rod of the cutter cylinder, the cutter cylinder is used to control the lifting and lowering of the cutter, and the cutter is used to cut the film.

[0012] Furthermore, in the cutting knife module, the pressure roller cylinders are respectively provided on both sides of the gantry crossbeam, and the piston rod ends of the two pressure roller cylinders are respectively connected to the two ends of the pressure roller, and the pressure roller cylinders are used to control the lifting and lowering of the pressure roller, and the pressure roller is used to press the subsequent film into another winding roller after the film is cut.

[0013] Furthermore, in the cutting knife module, n pressure roller cylinders are provided on the gantry crossbeam, wherein n is a natural integer greater than 2, the piston rod end of each pressure roller cylinder is respectively connected to the pressure roller, the number of the pressure rollers is consistent with the number of the pressure roller cylinders, the pressure roller cylinders are used to control the lifting and lowering of the pressure rollers, and the pressure rollers are used to press the subsequent film into another winding roller after the film is cut.

[0014] The present invention provides a film winding and cutting method, the method comprising the following steps: S1: conveying the film: conveying the film to the winding module through the tension roller and the contact roller in the conveying module; S2: Rewinding the film: continuously winding the film through the first winding roller and the second winding roller in the winding module; S3: Cutting the film: The film is cut by the gantry, the linear slide rail, the slider, the cutter cylinder, the cutter, the pressure roller cylinder and the pressure roller in the cutter module, and the subsequent film is pressed into another winding roller.

[0015] Furthermore, in S3, the cutter descends to the surface of the film as the cutter cylinder descends, so that the film is cut; and the cutter rises to an initial position as the cutter cylinder rises, waiting for the next cutting of the film.

[0016] Furthermore, in S3, the pressure roller cylinder and the cutter cylinder rise and fall synchronously, and the pressure roller descends to the surface of the film as the pressure roller cylinder descends, so that after the film is cut, the subsequent film is pressed into another winding roller; the pressure roller rises to the initial position as the pressure roller cylinder rises, waiting for the next cutting of the film.

[0017] Beneficial effects of the present invention 1. The existing film winding and cutting device usually adopts a swing arm structure, that is, the film winding and cutting device is installed on the swing arm. The arm is connected to the frame. When the film needs to be cut, the hydraulic system controls the cutting device to press down. After the cutting knife cuts a small hole at the edge of the film, it continues to move horizontally along the film until the film is completely cut. However, the film winding and cutting device has a complex structure, is difficult to manufacture and install, and has a high cost. The present invention unexpectedly adopts a cutting module, which includes a gantry, a linear slide rail, a slider, a cutting cylinder, a cutting knife, a pressure roller cylinder and a pressure roller. The slider is provided with a cutting cylinder, and the end of the piston rod of the cutting cylinder is provided with a cutting knife. The cutting cylinder is used to control the lifting and lowering of the cutting knife, and the cutting knife is used to cut the film; the gantry crossbeam is provided with a pressure roller cylinder, and the end of the piston rod of the pressure roller cylinder is connected to the pressure roller. The pressure roller cylinder is used to control the lifting and lowering of the pressure roller. The pressure roller is used to press the subsequent film into another winding roller after the film is cut. That is, compared with the conventional swing arm structure, the cutting module of the present invention has a simple structure, simple manufacturing and installation, and low production cost.

[0018] 2. The present invention unexpectedly adopts a winding module, which includes a first winding roller and a second winding roller. When the film is fully wound in the first winding roller, the positions of the first winding roller and the second winding roller are interchanged. At this time, the cutting module cuts the film between the first winding roller and the second winding roller along the transverse direction of the film, so that the subsequent film is wound in the second winding roller, thereby realizing continuous winding, saving downtime for rolling change, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a film winding and cutting device in the prior art; Figure 2 It is a structural schematic diagram of the film winding and cutting device in the present invention; Figure 3 The structure of the cutting module in the present invention is enlarged Figure Ⅰ ; Figure 4 The structure of the cutting module in the present invention is enlarged Figure II ; Figure 5 It is a schematic diagram of the structure in the cutting state of the present invention, 1- tension roller; 2- contact roller; 3- first winding roller; 4- second winding roller; 5- gantry; 6- slide rail; 7- slider; 8- cutting knife cylinder; 9- cutting knife; 10- pressure roller cylinder; 11- pressure roller. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] It should be noted that the term "including" in the specification and claims of the present invention and the above-mentioned drawings is intended to cover non-exclusive inclusions. In the present invention, the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated components to have specific directions. For those of ordinary skill in the art, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

[0022] Example 1 The present invention provides a film winding and cutting device, which comprises a transmission module, a winding module and a cutting module. The transmission module is arranged adjacent to the winding module, and the cutting module is located above the winding module. The conveying module comprises a tension roller 1 and a contact roller 2, and the conveying module is used to convey the film to the winding module; The winding module comprises a first winding roller 3 and a second winding roller 4, and the winding module is used to continuously wind the film; The cutter module comprises a gantry 5, a linear slide rail 6, a slide block 7, a cutter cylinder 8, a cutter 9, a pressure roller cylinder 10 and a pressure roller 11. The cutter module is used to cut the film and press the subsequent film into another winding roller.

[0023] Figure 2 The present invention is a structural schematic diagram of a film winding and cutting device, which includes a conveying module, a winding module and a cutting module. The conveying module is adjacent to the winding module, and the cutting module is located above the winding module. The conveying module includes a tension roller 1 and a contact roller 2. The film is first conveyed to the winding module by the conveying module. The winding module includes a first winding roller 3 and a second winding roller 4. When the film is fully wound in the first winding roller 3, the positions of the first winding roller 3 and the second winding roller 4 are interchanged. At this time, the cutting module (including a gantry 5, a linear slide rail 6, a slider 7, a cutting cylinder 8, a cutting knife 9, a pressure roller cylinder 10 and a pressure roller 11) cuts the film between the first winding roller 3 and the second winding roller 4 in the transverse direction of the film, and presses the subsequent film into the second winding roller 4.

[0024] Optionally, in the conveying module, the tension roller 1 is located at the far end of the winding module compared to the contact roller 2, the contact roller 2 is located at the proximal end of the winding module compared to the tension roller 1, the tension roller 1 is located below the contact roller 2, and the top of the tension roller 1 and the bottom of the contact roller 2 are tangent to the same horizontal plane, the tension roller 1 is used to stretch the film, and the contact roller 2 is used to convey the film to the winding module.

[0025] This design can effectively prevent the film from loosening and curling, so that the film is conveyed to the winding module in a better stretched state.

[0026] Optionally, in the winding module, the first winding roller 3 is located at the proximal end of the conveying module compared to the second winding roller 4, and the second winding roller 4 is located at the distal end of the conveying module compared to the first winding roller 3, and the first winding roller 3 and the second winding roller 4 are used for winding the film.

[0027] This design is to interchange the positions of the first winding roller 3 and the second winding roller 4 when the film is fully wound in the first winding roller 3. At this time, the cutting module cuts the film between the first winding roller 3 and the second winding roller 4 along the transverse direction of the film, so that the subsequent film is wound in the second winding roller 4, thereby realizing continuous winding, saving downtime for reel changing and improving production efficiency.

[0028] Optionally, in the cutter module, a linear slide 6 is provided directly below or on the side of the crossbeam of the gantry 5, and a slider 7 is provided on the linear slide 6. The linear slide 6 and the slider 7 are used to slide the cutter 9 from one side of the film to the other side.

[0029] This design is for when a roller cylinder 10 is provided on each side of the gantry 5 beam, the linear slide 6 is located directly below the gantry 5 beam; when multiple roller cylinders 10 are provided on the gantry 5 beam, the linear slide 6 is located on the side of the gantry 5 beam to avoid interference between the roller cylinder 10 and the linear slide 6. The length of the linear slide 6 needs to be greater than the width of the film to ensure that the cutter 9 cuts the film in the process of sliding from one side of the film to the other side.

[0030] Optionally, in the cutter module, a cutter cylinder 8 is provided on the slider 7, a cutter 9 is provided at the end of the piston rod of the cutter cylinder 8, the cutter cylinder 8 is used to control the lifting and lowering of the cutter 9, and the cutter 9 is used to cut the film.

[0031] When the film does not need to be cut, the slider 7 is located at the front end of the linear slide rail 6 (the end close to the head of the film), and the cutter cylinder 8 and the cutter 9 are in the initial position; when the film needs to be cut, the cutter 9 descends to the surface of the film as the cutter cylinder 8 descends, and the film is completely cut from the head to the tail.

[0032] Example 2 The present invention provides a film winding and cutting device. In the cutting module, pressure roller cylinders 10 are respectively provided on both sides of the crossbeam of the gantry 5. The piston rod ends of the two pressure roller cylinders 10 are respectively connected to the two ends of the pressure roller 11. The pressure roller cylinders 10 are used to control the lifting and lowering of the pressure roller 11. The pressure roller 11 is used to press the subsequent film into another winding roller after the film is cut.

[0033] Figure 3 The structure of the cutting module in the present invention is enlarged Figure Ⅰ The linear slide rail 6 is located directly below the crossbeam of the gantry 5. When the film does not need to be cut, the cutter cylinder 8, the cutter 9, the pressure roller cylinder 10 and the pressure roller 11 are in the initial position; when the film needs to be cut, the pressure roller cylinder 10 and the cutter cylinder 8 descend synchronously, the cutter 9 descends to the film surface as the cutter cylinder 8 descends, and the pressure roller 11 descends to the film surface as the pressure roller cylinder 10 descends. When the cutter 9 completely cuts the film from the head to the tail, the pressure roller 11 presses the subsequent film into another winding roller.

[0034] Example 3 The present invention provides a film winding and cutting device. In the cutting module, n pressure roller cylinders 10 are arranged on the crossbeam of a gantry frame 5, wherein n is a natural integer greater than 2, and the piston rod end of each pressure roller cylinder 10 is respectively connected to a pressure roller 11, and the number of pressure rollers 11 is consistent with the number of pressure roller cylinders 10. The pressure roller cylinders 10 are used to control the lifting and lowering of the pressure rollers 11, and the pressure rollers 11 are used to press the subsequent film into another winding roller after the film is cut.

[0035] Figure 4 The structure of the cutting module in the present invention is enlarged Figure II , the linear slide rail 6 is located on the side of the crossbeam of the gantry 5. Embodiment 3 uses multiple small pressure rollers 11 to replace the two large pressure rollers 11 in Embodiment 2. The multiple small pressure rollers 11 are evenly distributed on the crossbeam of the gantry 5. The piston rod end of each pressure roller cylinder 10 is connected to the pressure roller 11 respectively. The number of pressure rollers 11 is consistent with the number of pressure roller cylinders 10. Similarly, when the film does not need to be cut, the cutter cylinder 8, the cutter 9, the pressure roller cylinder 10 and the pressure roller 11 are in the initial position; when the film needs to be cut, the pressure roller cylinder 10 and the cutter cylinder 8 descend synchronously, and the cutter 9 descends to the surface of the film as the cutter cylinder 8 descends, and the multiple small pressure rollers 11 descend to the surface of the film as the pressure roller cylinder 10 descends. When the cutter 9 completely cuts the film from the head to the tail, the multiple small pressure rollers 11 press the subsequent film into another winding roller. This design replaces the two large pressing rollers 11 with a plurality of small pressing rollers 11 , thereby reducing the manufacturing cost and the difficulty of installation, and at the same time alleviating the load on the crossbeam of the gantry 5 .

[0036] Example 4 The present invention provides a film winding and cutting method, the method comprising the following steps: S1: conveying film: conveying the film to the winding module through the tension roller 1 and the contact roller 2 in the conveying module; S2: Winding up the film: the film is continuously wound up by the first winding roller 3 and the second winding roller 4 in the winding module; S3: Cutting the film: The film is cut by the gantry 5, linear slide rail 6, slider 7, cutter cylinder 8, cutter 9, pressure roller cylinder 10 and pressure roller 11 in the cutter module, and the subsequent film is pressed into another winding roller.

[0037] The film winding and cutting device includes a conveying module, a winding module and a cutting module. The conveying module is arranged adjacent to the winding module, and the cutting module is located above the winding module. The conveying module is used to convey the film, and the film is conveyed to the winding module through the tension roller 1 and the contact roller 2 in the conveying module; the winding module is used to wind the film, and the film is continuously wound through the first winding roller 3 and the second winding roller 4 in the winding module; the cutting module is used to cut the film, and the film is cut through the gantry 5, the linear slide rail 6, the slider 7, the cutting cylinder 8, the cutting knife 9, the pressure roller cylinder 10 and the pressure roller 11 in the cutting module, and the subsequent film is pressed into another winding roller.

[0038] Optionally, in S3, the cutter 9 descends to the film surface as the cutter cylinder 8 descends, so that the film is cut; the cutter 9 rises to the initial position as the cutter cylinder 8 rises, and waits for the next film cutting.

[0039] Figure 5 It is a schematic diagram of the structure in the cutting state of the present invention. When the film needs to be cut, the cutter 9 descends to the surface of the film as the cutter cylinder 8 descends, and the slider 7 slides from the front end of the linear slide rail 6 (the end near the head of the film) to the rear end (the end near the tail of the film) to completely cut the film; after the film is cut, the cutter 9 rises to the initial position as the cutter cylinder 8 rises, and is used to wait for the next film cutting.

[0040] Optionally, in S3, the pressure roller cylinder 10 and the cutter cylinder 8 rise and fall synchronously, and the pressure roller 11 descends to the surface of the film as the pressure roller cylinder 10 descends, so that after the film is cut, the subsequent film is pressed into another winding roller; the pressure roller 11 rises to the initial position as the pressure roller cylinder 10 rises, waiting for the next film cutting.

[0041] Figure 5It is a schematic diagram of the structure in the cutting state of the present invention. When the film needs to be cut, the pressure roller cylinder 10 and the cutter cylinder 8 descend synchronously, and the cutter 9 descends to the surface of the film as the cutter cylinder 8 descends, and the pressure roller 11 descends to the surface of the film as the pressure roller cylinder 10 descends. When the cutter 9 completely cuts the film from the head to the tail, the pressure roller 11 presses the subsequent film into another winding roller; after the film is cut, the pressure roller 11 rises to the initial position as the pressure roller cylinder 10 rises, and is used to wait for the next film cutting.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A film winding and cutting device, characterized in that: The device comprises a conveying module, a winding module and a cutting module, wherein the conveying module is arranged adjacent to the winding module, and the cutting module is located above the winding module. The conveying module comprises a tension roller (1) and a contact roller (2), and the conveying module is used to convey the film to the winding module; The winding module comprises a first winding roller (3) and a second winding roller (4), and the winding module is used to continuously wind the film; The cutting module comprises a gantry (5), a linear slide rail (6), a slide block (7), a cutting cylinder (8), a cutting knife (9), a pressure roller cylinder (10) and a pressure roller (11). The cutting module is used for cutting the film and pressing the subsequent film into another winding roller.

2. The device according to claim 1, characterized in that In the conveying module, the tension roller (1) is located at the far end of the winding module compared to the contact roller (2), and the contact roller (2) is located at the near end of the winding module compared to the tension roller (1). The tension roller (1) is located below the contact roller (2), and the top of the tension roller (1) and the bottom of the contact roller (2) are tangent to the same horizontal plane. The tension roller (1) is used to stretch the film, and the contact roller (2) is used to convey the film to the winding module.

3. The device according to claim 1, characterized in that In the winding module, the first winding roller (3) is located at the proximal end of the conveying module compared to the second winding roller (4), and the second winding roller (4) is located at the distal end of the conveying module compared to the first winding roller (3). The first winding roller (3) and the second winding roller (4) are used to wind up the film.

4. The device according to claim 1, characterized in that In the cutting knife module, the linear slide rail (6) is provided directly below or on the side of the crossbeam of the gantry (5), and the slider (7) is provided on the linear slide rail (6). The linear slide rail (6) and the slider (7) are used to make the cutting knife (9) slide from one side of the film to the other side.

5. The device according to claim 1, characterized in that In the cutter module, a cutter cylinder (8) is provided on the slider (7), a cutter (9) is provided at the end of the piston rod of the cutter cylinder (8), the cutter cylinder (8) is used to control the lifting and lowering of the cutter (9), and the cutter (9) is used to cut the film.

6. The device according to claim 1, characterized in that In the cutting module, the pressure roller cylinders (10) are respectively provided on both sides of the crossbeam of the gantry (5), and the piston rod ends of the two pressure roller cylinders (10) are respectively connected to the two ends of the pressure roller (11), and the pressure roller cylinders (10) are used to control the lifting and lowering of the pressure roller (11), and the pressure roller (11) is used to press the subsequent film into another winding roller after the film is cut.

7. The device according to claim 1, characterized in that In the cutting module, n pressure roller cylinders (10) are arranged on the crossbeam of the gantry (5), wherein n is a natural integer greater than 2, and the piston rod end of each pressure roller cylinder (10) is respectively connected to the pressure roller (11), and the number of the pressure rollers (11) is consistent with the number of the pressure roller cylinders (10). The pressure roller cylinders (10) are used to control the lifting and lowering of the pressure roller (11), and the pressure roller (11) is used to press the subsequent film into another winding roller after the film is cut.

8. A method for film winding and cutting using the device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1: conveying the film: conveying the film to the winding module through the tension roller (1) and the contact roller (2) in the conveying module; S2: rolling up the film: the film is continuously wound up by the first winding roller (3) and the second winding roller (4) in the winding module; S3: Cutting the film: The film is cut by the gantry (5), the linear slide rail (6), the slider (7), the cutter cylinder (8), the cutter (9), the pressure roller cylinder (10) and the pressure roller (11) in the cutter module, and the subsequent film is pressed into another winding roller.

9. The method according to claim 8, characterized in that In S3, the cutter (9) descends to the surface of the film as the cutter cylinder (8) descends, so that the film is cut; and the cutter (9) rises to the initial position as the cutter cylinder (8) rises, so as to wait for the next cutting of the film.

10. The method according to claim 8, characterized in that In S3, the pressure roller cylinder (10) and the cutter cylinder (8) rise and fall synchronously, and the pressure roller (11) descends to the surface of the film as the pressure roller cylinder (10) descends, so that after the film is cut, the subsequent film is pressed into another winding roller; the pressure roller (11) rises to the initial position as the pressure roller cylinder (10) rises, and is used to wait for the next cutting of the film.

Images