A film slitting apparatus

Abstract

The utility model discloses a film cutting device, its technical scheme main points include frame, unwinding roller and clamp, two limit seats are fixedly installed on the frame, two limit seats are arranged in the upper and lower layer, and the gap for the film is formed between two limit seats, and the limit seat has the input side and the output side, and the gap is along the input side and the output side direction through, and the unwinding roller is installed in the input side of limit seat, and the output side of limit seat installs the cutter, and the cutter can slip along the film width direction, is used for cutting the film, and the limit seat output side is provided with the let -alone groove no. The let -alone groove no. Is through, and the output side is opened to the output side direction, and the clamp is located in the output side of limit seat, and the clamp is supported through the cross -beam, and can slip along the conveying direction of film, and the position of clamp is opposite the let -alone groove no. Can embed the let -alone groove no. Output side and clamp up the film. The utility model has optimized the action cooperation between cutter, clamping plate and clamp, has realized the flexible adjustable of clamping station.

Description

Technical Field

[0001] This utility model relates to the field of cutting devices, and more specifically, to a film slitting device. Background Technology

[0002] A film cutting machine is an automated device used to cut film rolls to a fixed length. Its main components include a frame, unwinding rollers, limit seats, clamping assemblies, and a cutting mechanism. The entire machine achieves the cutting of film materials through the precise cooperation and spatial coordination between its various components.

[0003] In the film cutting process, the film is first clamped by a clamp, then pulled out to a certain length, and then cut along the width of the film by a cutter so that the film can be formed into a sheet of a certain length.

[0004] After the film is cut, the cut end forms a broken piece, which makes it difficult for the clamp to position the film during clamping, affecting the stability of the clamping, and may even require manual assistance in clamping the film.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a film slitting device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a film slitting device, comprising a frame, an unwinding roller, and a clamp. Two limiting seats are fixedly installed on the frame, stacked vertically, forming a gap between the two limiting seats for the film to pass through. Each limiting seat has an input side and an output side, and the gap extends through the input and output sides. The unwinding roller is installed on the input side of the limiting seat. A cutter is installed on the output side of the limiting seat, which can slide along the width direction of the film to cut the film. A clearance groove is provided on the output side of the limiting seat, extending vertically and opening towards the output side. The clamp is located on the output side of the limiting seat, supported by a crossbar, and can slide along the film conveying direction. The clamp is positioned opposite the clearance groove and can be embedded into the output side of the clearance groove to clamp the film.

[0008] By adopting the above solution, by opening a vertically penetrating clearance groove on the output side of the two limit seats, and enabling the fixture to be inserted into the corresponding groove, the function of directly clamping the film from the gap after cutting is realized, effectively avoiding the problem of the film edge being stuck in the gap and requiring additional operation in the traditional design.

[0009] The present invention is further configured such that the first relief groove extends along the width direction of the film and the second relief groove is provided, and the second relief groove is perpendicular to the first relief groove.

[0010] By adopting the above scheme, and by extending a second relief groove vertically along the width direction of the film on the basis of the first relief groove, an L-shaped three-dimensional relief space is formed. This structure allows the extension or body of the clamp to not only extend forward into the first relief groove when clamping the film, but also to obtain additional clearance space in the width direction.

[0011] The present invention is further configured such that the limiting seat includes a connecting plate, the connecting plate is located on the film output side, connecting seats are fixedly installed at both ends of the connecting plate, a rotating shaft is installed between the two connecting seats, a clamping plate is rotatably installed on the rotating shaft toward the output side, the clamping plate is provided with a clamping part, and the clamping parts of the upper and lower clamping plates are arranged opposite to each other for clamping and positioning the film on the output side.

[0012] By adopting the above scheme, the output side of the limiting seat is equipped with a rotating clamp driven by a rotating shaft, and with upper and lower opposing clamping parts, it realizes the elastic clamping and positioning of the output film. This structure can effectively flatten the film and prevent it from shrinking or shifting to ensure the accuracy of the cutting position. It can also smoothly rotate and open when the clamp comes to pick up the film, avoiding mechanical interference.

[0013] The present invention is further configured such that a torsion spring is installed between the rotating shaft and the connecting seat, the spring body of the torsion spring is sleeved on the rotating shaft, and the two torsion arms of the torsion spring are respectively fixed on the rotating shaft and the corresponding connecting seat. The torsion spring can elastically drive the clamping part of the clamping plate to move toward the film.

[0014] By adopting the above solution, and by setting a torsion spring between the rotating shaft and the connecting seat, and fixing its two torsion arms separately, the elastic restoring force of the torsion spring is cleverly utilized to provide a continuous and automatic clamping force for the clamping plates. This design allows the upper and lower clamping plates to automatically adapt and flexibly clamp the film without the need for additional driving components. This simplifies the structure, reduces costs, and achieves automatic, stable, and damage-free elastic clamping of the film, effectively preventing the film from loosening and shifting before cutting.

[0015] The present invention is further provided that a limiting block is provided on the side of the rotating shaft facing away from the clamping plate, and the limiting block is fixedly installed on the rotating shaft to limit the clamping plate.

[0016] By adopting the above scheme, a fixed limiting block is set on the side of the rotating shaft facing away from the clamping plate, providing a mechanical stop for the rotation range of the clamping plate. This structure can effectively limit the excessive closing of the clamping plate under the action of the torsion spring or the excessive opening under the action of external force, which not only prevents damage to the film due to excessive clamping force, but also avoids mechanical interference or reset failure caused by abnormal clamping plate angle.

[0017] The present invention is further configured such that the clamp includes an extension portion, the extension portion extends along the width direction of the film, the extension portion can extend into the relief groove two, and the length and width of the extension portion are adapted to the corresponding dimensions of the relief groove two.

[0018] By adopting the above solution, and by adapting the extension of the fixture to the second relief groove in terms of size and shape, and allowing it to directly extend into it, the fixture is able to engage with the limiting seat structure when performing the clamping action. This three-dimensional interlocking relationship ensures, on the one hand, that the fixture can reach the clamping position and firmly grasp the edge of the film that may be stuck in the gap; on the other hand, it effectively avoids spatial movement interference between the fixture and the limiting seat, ensuring smooth and stable operation of the equipment.

[0019] The present invention is further configured to include a finger cylinder, the finger cylinder having two movable ends, and a clamp being fixedly installed on the movable ends.

[0020] By adopting the above solution, and using a finger cylinder to drive the clamp, the synchronous opening and closing of the clamp is controlled by its two movable ends, achieving rapid and automated control of the film clamping and releasing actions. This structure not only simplifies the transmission mechanism but also ensures the complete synchronicity of the movement of the clamps on both sides. This effectively avoids problems such as film offset, wrinkling, or damage that may be caused by uneven clamping force or asynchronous movements on one side during film traction, significantly improving the stability of the clamping process and product quality.

[0021] The present invention is further configured such that a crossbeam is installed on the frame, the finger cylinder is fixedly installed on the crossbeam, and the crossbeam moves back and forth along the film conveying direction.

[0022] By adopting the above solution, and fixing the finger cylinder to a horizontal frame that can move back and forth, the clamping mechanism gains the freedom to move precisely along the film conveying direction. This structure integrates clamping and traction functions, allowing the clamp to actively and smoothly pull the film out to a specified length after clamping it, thereby controlling the cutting size of each piece of material.

[0023] In summary, this utility model has the following beneficial effects:

[0024] 1. By designing the fixture to be able to move on the crossbeam driven by a finger cylinder, and cooperating with the relief groove structure on the limit seat, the clamping position is made flexible and adjustable.

[0025] 2. The coordination between the cutter, clamping plate, and fixture has been optimized. Specifically, after cutting, the fixture does not need to perform complex additional actions; it can naturally pull the cut film out of the gap in the limiting seat during the subsequent traction process. This design eliminates the problem of film edge retention, making the entire process from cutting to removing the sheet seamless. Attached Figure Description

[0026] Figure 1 This is a perspective view of a film slitting device in this embodiment;

[0027] Figure 2 This is a cross-sectional view of a film slitting device in this embodiment;

[0028] Figure 3 This is a top view of the fixture in this embodiment;

[0029] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0031] Figure 6 This is an enlarged view of the clamp entering the clamping plate in this embodiment.

[0032] Reference numerals: 1. Frame; 2. Unwinding roller; 31. Limiting seat; 32. Limiting block; 33. First relief groove; 34. Second relief groove; 35. Connecting plate; 36. Rotating shaft; 37. Clamping plate; 38. Connecting seat; 41. Clamp; 42. Finger cylinder; 43. Horizontal frame; 44. Extension; 5. Cutter; 6. Guide rail. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This embodiment discloses a film slitting device, referring to... Figures 1-6As shown, the assembly includes a frame 1, an unwinding roller 2, and a clamping assembly. Two stacked limiting seats 31 are fixedly mounted on the frame 1, forming a guide gap between them for the film to pass through. Each limiting seat 31 has an input side and an output side, and the gap extends along both the input and output sides. The unwinding roller 2 is mounted on the input side of the limiting seat 31, and a roll of film is rotatably mounted on it. After the film is drawn out from the unwinding roller 2, it enters the gap from the input side of the limiting seat 31, passes through the gap, and is output from the output side of the limiting seat 31, where it is clamped and fixed by the clamping assembly 41.

[0035] Reference Figure 4 As shown, the output side of the limiting seat 31 is provided with a relief groove 33, which is vertically connected and open towards the output side; the relief groove 33 extends along the width direction of the film and is provided with a relief groove 34, which is perpendicular to the relief groove 33 to form a three-dimensional relief space.

[0036] The limiting seat 31 includes a connecting plate 35 located on the output side of the film. Connecting seats 38 are fixedly installed at both ends of the connecting plate 35. A rotating shaft 36 is installed between the two connecting seats 38. A clamping plate 37 is installed on the rotating shaft 36 in the direction of the output side. The clamping plate 37 is provided with a clamping part 39. The clamping parts 39 of the upper and lower clamping plates 37 are arranged opposite to each other to form a clamping mechanism, which can clamp and position the film on the output side.

[0037] Reference Figure 5 As shown, to optimize the movement control of the clamping plate, a limiting block 32 is provided on the side of the rotating shaft 36 facing away from the clamping plate 37. The limiting block 32 is fixedly installed on the rotating shaft 36 and can mechanically limit the rotation range of the clamping plate 37. By providing a fixed limiting block 32 on the side of the rotating shaft facing away from the clamping plate 37, a mechanical stop is provided for the rotation range of the clamping plate 37. This structure can effectively limit the clamping plate 37 from excessively closing due to the torsion spring or excessively opening under external force, avoiding damage to the membrane due to excessive clamping force, and preventing mechanical interference or reset failure caused by abnormal angle of the clamping plate 37.

[0038] A torsion spring is installed between the rotating shaft 36 and the connecting seat 38. The spring body of the torsion spring is sleeved on the rotating shaft 36, and the two torsion arms of the torsion spring are fixed on the rotating shaft 36 and the corresponding connecting seat 38, respectively. The torsion spring provides a continuous torsional torque to the rotating shaft 36, which can elastically drive the clamping part 39 of the clamping plate 37 to move toward the film, ensuring the stability and reliability of the clamping.

[0039] Reference Figure 3 As shown, the device also includes a finger cylinder 42, which has two movable ends, and clamps 41 are fixedly mounted on the movable ends. The two movable ends can open and close relative to each other, which can drive the clamps 41 to perform a locking action. When the clamps 41 of the two movable ends are closed together, they can clamp the film; when they are moved away from each other, they can open and release the film.

[0040] The clamp 41 includes an extension 44 that extends along the width direction of the film. The extension 44 can extend into the relief groove 34. The length and width of the extension 44 are adapted to the corresponding dimensions of the relief groove 34 to achieve a fitting. A crossbeam 43 is mounted on the frame 1. A finger cylinder 42 is fixedly mounted on the crossbeam 43. The crossbeam 43 moves back and forth along the film conveying direction, thereby driving the clamp 41 to achieve clamping and traction functions.

[0041] Reference Figure 6 As shown, the clamp 41 is located on the output side of the limiting seat 31. The clamp 41 is supported by the cross frame 43 and can slide along the film conveying direction. The position of the clamp 41 is opposite to the relief groove 33. It can be embedded in the output side of the relief groove 33 and clamp the film to complete the film transfer operation.

[0042] In addition, a cutter 5 is installed on the output side of the limit seat 31. The cutter 5 can slide along the width direction of the film to cut the film laterally. When the cutter 5 moves along the guide rail 6 to cut, its cutting surface forms a sliding guide fit with the outer surface of the clamping plate 37 to ensure that the cut is flat and does not deviate, thereby improving the cutting quality.

[0043] The device achieves film positioning, stable clamping, and high-quality cutting through the coordinated operation of the limiting seat 31, clamping mechanism, clamping assembly, and cutter 5, thereby improving production efficiency and product quality.

[0044] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A film slitting device, characterized in that, It includes a frame (1), an unwinding roller (2) and a clamp (41). Two limiting seats (31) are fixedly installed on the frame (1). The two limiting seats (31) are stacked one on top of the other, and a gap is formed between the two limiting seats (31) for the film to pass through. The limiting seat (31) has an input side and an output side, and the gap is through the input side and the output side. The unwinding roller (2) is installed on the input side of the limiting seat (31). The output side of the limiting seat (31) is equipped with a cutter (5). The cutter (5) can slide along the width direction of the film and is used to cut the film. The limiting seat (31) has a relief groove (33) on its output side. The relief groove (33) is vertically connected and open towards the output side. The clamp (41) is located on the output side of the limiting seat (31). The clamp (41) is supported by the crossbar (43) and can slide along the conveying direction of the film. The position of the clamp (41) is opposite to the relief groove (33) and can be embedded into the output side of the relief groove (33) and clamp the film.

2. The film slitting device according to claim 1, characterized in that, The first relief groove (33) extends along the width direction of the film and is provided with a second relief groove (34), which is perpendicular to the first relief groove (33).

3. The film slitting device according to claim 1, characterized in that, The limiting seat (31) includes a connecting plate (35), which is located on the output side of the film. Connecting seats (38) are fixedly installed at both ends of the connecting plate (35). A rotating shaft (36) is installed between the two connecting seats (38). A clamping plate (37) is installed on the rotating shaft (36) in the direction of the output side. The clamping plate (37) is provided with a clamping part (39). The clamping parts (39) of the upper and lower clamping plates (37) are arranged opposite to each other and are used to clamp and position the film on the output side.

4. A film slitting device according to claim 3, characterized in that, A torsion spring is installed between the rotating shaft (36) and the connecting seat (38). The spring body of the torsion spring is sleeved on the rotating shaft (36). The two torsion arms of the torsion spring are respectively fixed on the rotating shaft (36) and the corresponding connecting seat (38). The torsion spring can elastically drive the clamping part (39) of the clamping plate (37) to move toward the film.

5. A film slitting device according to claim 4, characterized in that, A limiting block (32) is provided on the side of the rotating shaft (36) facing away from the clamping plate (37). The limiting block (32) is fixedly installed on the rotating shaft (36) and is used to limit the clamping plate (37).

6. A film slitting device according to claim 1, characterized in that, The clamp (41) includes an extension (44) that extends along the width of the film and is capable of extending into a relief groove (34). The length and width of the extension (44) are adapted to the corresponding dimensions of the relief groove (34).

7. A film slitting device according to claim 6, characterized in that, It also includes a finger cylinder (42), which has two movable ends, and a clamp (41) is fixedly installed on the movable ends.

8. A film slitting device according to claim 7, characterized in that, A crossbeam (43) is installed on the frame (1), and the finger cylinder (42) is fixedly installed on the crossbeam (43). The crossbeam (43) moves back and forth along the film conveying direction.

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