A film slitting device

Abstract

The utility model discloses a film slitting device, its characterized in that, including support no.

Description

Technical Field

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

[0002] The core purpose of a film slitting device is to efficiently and accurately slit a wide film into several narrow strips. During the film slitting process, the film material is slit by slitting blades.

[0003] Slitting blades are generally divided into two categories. The first category is the fixed circular slitting blade, which has multiple disc blades mounted on a rigid blade shaft at a preset width. The second category is the straight blade, which has a strip-shaped structure and usually has a blade holder on which the blade is mounted. One end of the blade is fixed and the other end is suspended. The straight blade is more flexible in installation than the circular blade and has a wider range of applications.

[0004] Because the straight cutting blade has one end suspended in the air, it is prone to bending and shifting during equipment maintenance or blade adjustment. This causes changes in the spacing between adjacent cutting blades, directly affecting the cutting width parameter. Therefore, a new solution is needed to address this problem. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a film slitting device that has the effects of stably supporting the cutter and flexibly adjusting the adjustment block and the cutter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a film slitting device, comprising a support first, a support second, a plurality of adjustment blocks first and a plurality of adjustment blocks second, wherein the axes of the support first and the support second are arranged parallel at the same height, and both ends are fixedly installed on the frame by supports respectively; the adjustment blocks first and the adjustment blocks second are opposite to each other, the adjustment blocks first are installed on the support first, and the adjustment blocks second are installed on the support second; a connecting block first is fixedly connected to the side of the adjustment blocks first facing the adjustment blocks second, and a limiting block is fixedly connected to the side of the adjustment blocks second facing the adjustment blocks first; the limiting block has a limiting groove, the upper side of the limiting groove is open, and the lower side is closed to form a support part; each of the connection blocks first is equipped with a cutter, one end of the cutter is rotatably connected to the connection block first, and the other end is embedded in the limiting groove to achieve limiting in the width direction of the film.

[0007] By adopting the above scheme, a combination structure of supports arranged at equal heights and parallel to each other, and a pair of adjusting blocks, a connecting block with a cutter is set on the first adjusting block, and a limiting block with a limiting groove is set on the corresponding second adjusting block. This allows the working end of the cutter to be stably embedded in the groove, forming an effective bidirectional limiting support. This design changes the cantilever structure of the traditional straight cutter, which not only effectively suppresses the swaying vibration of the cutter during the slitting process and ensures the stability of the slitting width, but also provides reliable guidance and rigid support for the cutter through the structure of the upper opening and lower support of the limiting groove, significantly improving the slitting quality and efficiency.

[0008] The present invention is further configured such that one end of the cutter is rotatably mounted on the first connecting block by a bolt, one end of the bolt passes through the mounting hole of the cutter and is threadedly connected to the threaded hole of the first connecting block; the other end of the bolt is fixedly connected to a stop block, and the stop block, the cutter and the first connecting block are pressed and fixed together.

[0009] By adopting the above solution, and using a bolt-fitted stop structure to rotate and install one end of the cutter onto the connecting block, a balance between cutter installation stability and flexible angle adjustment is achieved. The bolt passes through the cutter mounting hole and is threaded into the connecting block. The stop then presses the cutter and connecting block together to secure them. This connection method not only provides a solid installation foundation for the cutter, effectively preventing loosening and displacement during the cutting process, but also preserves the cutter's rotational freedom around the bolt axis, facilitating fine-tuning of the cutter angle according to different cutting requirements.

[0010] The present invention is further configured such that the lower end of the cutter abuts against the support portion at the lower part of the limiting groove.

[0011] By adopting the above solution, effective rigid support for the working end of the cutter is achieved by abutting the lower end of the cutter against the support part at the bottom of the limiting groove. This design transforms the cutter from a traditional cantilever structure to a two-end supported structure, improving the stability of the cutter body during the slitting process. The rigid support provided by the support part effectively suppresses cutter vibration and sway, ensuring that the cutting trajectory remains linear.

[0012] The present invention is further configured such that a limiting groove opening is provided at the upper end of the limiting groove, and an inclined inner wall is formed on the inner side of the limiting groove opening, the inclined inner wall being arranged in an inwardly inclined manner from top to bottom.

[0013] By adopting the above solution, and by setting a limiting groove with an inclined inner wall at the upper end of the limiting groove, the automatic guidance and positioning of the cutter is achieved. The unique structure of the inclined inner wall, which slopes inward from top to bottom, can naturally guide the blade tip when the cutter falls, allowing it to smoothly slide into the working position and effectively avoiding rigid collision between the blade tip and the upper edge of the limiting block.

[0014] The present invention is further configured such that the lower half of the limiting groove is vertical and a vertical inner wall is formed on the inner side, and the width of the vertical inner wall is adapted to the thickness of the cutter.

[0015] By adopting the above scheme, and by setting a vertical inner wall in the lower half of the limiting groove, and matching the relative spacing between the inner walls with the thickness of the cutter, the working posture of the cutter is constrained. After the cutter completes its guided entry, this vertical section structure can effectively limit its lateral swing and torsion, forming a stable straight guide channel.

[0016] The present invention is further configured such that the blade of the cutter is arranged facing the direction of the limiting groove, so that the film is introduced from one side of the limiting groove and cut.

[0017] By adopting the above scheme and arranging the blade edge towards the limiting groove, the cutting path and force distribution of the film slitting are optimized. This layout ensures that when the film is introduced from one side of the limiting groove, it first contacts the sharpest part of the blade edge, achieving a smooth and efficient initial cut. Simultaneously, the blade edge orientation forms an optimal cutting angle with the film's travel direction, effectively reducing slitting resistance and material waste.

[0018] The present invention is further configured such that the first adjusting block and the second adjusting block are slidably mounted on the first bracket and the second bracket, and are capable of rotating circumferentially and sliding axially along the outer surface of the first bracket and the second bracket.

[0019] By adopting the above scheme, adjusting blocks one and two are slidably mounted on the bracket and locked in place by screws, enabling flexible adjustment of the slitting unit in both the axial and circumferential directions. This structure allows the adjusting blocks to move axially along the bracket axis, easily adjusting the slitting width and blade spacing, while also supporting circumferential rotation around the bracket, facilitating optimization of the cutting angle to adapt to different film properties.

[0020] The present invention is further configured such that the cross-sections of the first bracket and the second bracket are circular.

[0021] By adopting the above scheme and setting the cross-sections of bracket one and bracket two to be circular, the performance of the entire slitting device is improved. The circular cross-section structure allows the adjusting block mounted on it to achieve 360-degree stepless circumferential rotation, which facilitates the adjustment of the working angle of the cutter; at the same time, the smooth circular contact surface ensures the smooth axial sliding of the adjusting block on the bracket, which greatly facilitates the setting of the slitting width.

[0022] The present invention is further configured such that the cutter is arranged at an angle relative to the horizontal plane, and the cutter is inclined from top to bottom toward the limiting block.

[0023] By adopting the above scheme, the cutter is set to be inclined relative to the horizontal plane and tilted downwards toward the limiting block, so that the film exerts continuous pressure on the blade at the cutting point, and the cutting resistance is converted into positive pressure to stabilize the blade body, effectively suppressing the vibration and jumping of the cutter.

[0024] The present invention is further configured such that the blade of the cutter is positioned with its blade pointing upwards.

[0025] By adopting the above scheme and setting the blade's edge upwards, a bottom-up slitting mode is achieved. This layout allows the blade to slit the film from the bottom up as it passes over the device, preventing the blade from scratching the functional coating or decorative surface of the film.

[0026] In summary, this utility model has the following beneficial effects:

[0027] 1. The device adopts parallel brackets and pairs of adjusting blocks, and integrates a cutter supported by a connecting block and a limiting groove provided by a limiting block on the adjusting block, so that one end of the cutter is rotatably connected and the other end is embedded in the limiting groove, transforming the traditional cantilever support into a stable two-end support structure.

[0028] 2. The cutter is rotated and clamped in place by bolts and a stop block, which ensures installation stability and facilitates fine-tuning of the angle; the detachable connecting rod further locks the relative position of the paired adjustment blocks, enhancing the overall rigidity of the system.

[0029] 3. The adjustment block can slide and rotate along the bracket, which facilitates quick adjustment of the cutting width and angle, combining the efficiency of circular blade cutting with the flexibility of straight blade cutting. Attached Figure Description

[0030] Figure 1 This is a perspective view of a film slitting device in this embodiment;

[0031] Figure 2 This is a cross-sectional view of a film slitting device in this embodiment;

[0032] Figure 3 This is a cross-sectional view of the adjusting block and the cutter in this embodiment;

[0033] Figure 4 This is a cross-sectional view of the cutter and the limiting block in this embodiment;

[0034] Figure 5 This is a perspective view of a film slitting device with a connecting rod installed in this embodiment;

[0035] Figure 6 This is a schematic diagram of the film cutting process in this embodiment.

[0036] Reference numerals: Bracket 1 101; Bracket 2 102; Adjusting block 1 21; Adjusting block 2 22; Rotating handle 23; Screw 24; Through hole 1 241; Gap 25; Upper end 1 261; Upper end 2 262; Cutter 3; Blade 301; Lower end 302; Stop block 31; Connecting block 1 32; Bolt 33; Mounting hole 34; Threaded hole 35; Connecting rod 4; Connecting block 2 411; Through hole 2 411; Connecting block 2 421; Through hole 3 421; Limiting block 5; Limiting groove 51; Support part 511; Limiting groove opening 512; Inclined inner wall 5121; Vertical inner wall 5122; Membrane 6. Detailed Implementation

[0037] 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.

[0038] This embodiment discloses a film slitting device, referring to... Figures 1-6 As shown, the system includes a first support 101, a second support 102, several first adjustment blocks 21, and several second adjustment blocks 22. The axes of the first support 101 and the second support 102 are arranged parallel to each other at the same height, and both ends are fixedly installed on the frame by supports 1. The cross-sections of the first support 101 and the second support 102 are circular. The first adjustment blocks 21 and the second adjustment blocks 22 are arranged in a one-to-one correspondence. The first adjustment blocks 21 are slidably installed on the first support 101, and the first adjustment blocks 21 are arranged parallel to each other at equal intervals along the axis of the first support 101. The second adjustment blocks 22 are slidably installed on the second support 102, and the second adjustment blocks 22 are arranged parallel to each other at equal intervals along the axis of the second support 102.

[0039] Reference Figure 1 As shown, adjusting block 1 21 and adjusting block 22 are slidably mounted on bracket 1 101 and bracket 2 102 respectively, and can be locked and fixed respectively. For example, adjusting block 1 21 and adjusting block 22 are roughly arranged in a ring shape and are fitted on the corresponding rod-shaped bracket; both adjusting block 1 21 and adjusting block 22 are provided with upper end 1 261 and upper end 2 262, and a gap 25 (i.e. a notch forming the outer periphery of the ring) is formed between upper end 1 261 and upper end 262. A screw 24 is installed between upper end 1 261 and upper end 262. The screw 24 can lock and fix upper end 1 261 and upper end 262, thereby fixing adjusting block 1 21 on the corresponding bracket 1 101 and adjusting block 22 on the corresponding bracket 2 102.

[0040] A through hole 241 passes through the middle of the upper end 1 261 and the upper end 2 262. A screw 24 is installed through the through hole 241. The through hole 241 in the upper end 1 261 is not threaded, while the through hole 241 in the upper end 262 is threaded. The screw 24 passes through the upper end 1 261 and engages with the threaded upper end 262, which can achieve threaded locking and fixation.

[0041] A rotating handle 23 is mounted on the side of the screw 24 away from the cutter 3. Rotating the handle 23 drives the screw 24 to rotate, which can change the width of the gap 25, thereby adjusting the tightness of the adjusting block 1 21 and the adjusting block 22, and locking or loosening the bracket.

[0042] Adjusting block 1 21 and adjusting block 2 22 can rotate circumferentially and slide axially along the outer circumferential surface of bracket 1 101 and bracket 2 102 to adapt to different cutting angles and position requirements.

[0043] By sliding adjustment blocks 21 and 22 onto the support, the slitting unit achieves flexible adjustment in both the axial and circumferential directions. This structure allows the adjustment blocks to move axially along the support axis, easily adjusting the slitting width and blade spacing, while also supporting circumferential rotation around the support, facilitating optimization of the cutting angle to adapt to different film properties.

[0044] A connecting block 32 is fixedly connected to the side of the adjusting block 21 facing the adjusting block 22. A limiting block 5 is fixedly connected to the side of the adjusting block 22 facing the adjusting block 21. The limiting block 5 has a limiting groove 512. The upper side of the limiting groove 512 is open, and the lower side is closed to form a support part 511.

[0045] Reference Figure 2 , Figure 6 As shown, each connecting block 32 is rotatably mounted with a cutter 3 via bolts 33. One end of the cutter 3 is rotatably connected to the connecting block 32, and the other end is embedded in the limiting slot 512 to limit the width of the film 6. The cutter 3 is arranged at an angle relative to the horizontal plane, tilting downwards towards the limiting block 5. The blade 301 of the cutter 3 is arranged towards the limiting slot 512, and the blade 301 of the cutter 3 is set upwards, so that the film 6 can be introduced from one side of the limiting slot 512 and cut.

[0046] By aligning the blade edge 301 of the cutter 3 towards the limiting slot 512, the cutting path and force distribution of the film 6 are optimized. This arrangement ensures that when the film 6 is introduced from the limiting slot 512 side, it first contacts the sharpest part of the blade edge 301, achieving a smooth and efficient initial cut. Simultaneously, the blade edge 301 forms an appropriate cutting angle with the direction of travel of the film 6, effectively reducing cutting resistance and material consumption.

[0047] Reference Figure 4As shown, the lower end 302 of the cutter 3 abuts against the support portion 511 at the lower part of the limiting groove 51. The support portion 511 provides rigid support for the cutter 3. The width of the groove is slightly larger than the thickness of the cutter, providing the necessary clearance for the cutter 3 while ensuring effective limiting. A limiting groove opening 512 is formed at the upper end of the limiting groove 51. An inclined inner wall 5121 is formed on the inner side of the limiting groove opening 512. The inclined inner wall 5121 is arranged inward from top to bottom, forming a guide flared structure. The lower half of the limiting groove opening 512 is vertical, and a vertical inner wall 5122 is formed on its inner side. The width of the vertical inner wall 5122 is adapted to the thickness of the cutter 3 to form a fit.

[0048] The unique inward tilt of the inclined inner wall 5121 from top to bottom naturally guides the blade tip as the cutter 3 falls, allowing it to smoothly slide into the working position and effectively preventing rigid collisions between the blade tip and the upper edge of the limiting block 5. By setting a vertical inner wall 5122 in the lower half of the limiting groove 512 and matching the relative spacing between the inner walls to the thickness of the cutter 3, the working posture of the cutter 3 is constrained. This vertical section structure effectively limits the lateral swing and torsion of the cutter 3 after it has been guided into position, forming a stable straight guide channel.

[0049] Reference Figure 3 As shown, one end of the cutter 3 is rotatably mounted on the connecting block 32 by a bolt 33. One end of the bolt 33 passes through the mounting hole 34 of the cutter 3 and is threaded into the threaded hole 35 of the connecting block 32. The other end of the bolt 33 is fixedly connected to a stop block 31. The stop block 31, the cutter 3 and the connecting block 32 are pressed and fixed together to form a stable hinge structure.

[0050] By using a bolt 33 and a stop block 31 to rotatably mount one end of the cutter 3 to the connecting block 32, a balance between the stability of the cutter 3's installation and the flexibility of its angle adjustment is achieved. The bolt 33 passes through the mounting hole 34 of the cutter 3 and is threadedly connected to the connecting block 32. The stop block 31 then presses and fixes the cutter 3 and the connecting block 32 together. This connection method not only provides a solid mounting foundation for the cutter 3, effectively preventing loosening and displacement during the cutting process, but also preserves the degree of freedom of rotation of the cutter 3 around the axis of the bolt 33, making it easy to fine-tune the cutter angle according to different cutting requirements.

[0051] In addition, refer to Figure 5 As shown, a connecting block 21 and a connecting block 32 are fixedly installed on the upper surface of the upper end 261. The connecting blocks 21 and 32 are spaced apart and arranged opposite to each other. Through holes 1 411 and 2 421 are opened between the connecting blocks 21 and 32. The axes of the through holes 1 411 and 2 421 are coaxial. A connecting rod 4 passes through the through holes 1 411 and 2 421. In particular, the connecting rod 4 is a detachable structure and can connect and position the adjusting block 1 21 and the adjusting block 22.

[0052] By making the connecting rod 4 a detachable structure, quick connection and positioning of adjusting block 1 21 and adjusting block 2 22 are achieved. This design allows the paired adjusting blocks to form a stable rigid connection through the connecting rod 4, effectively maintaining the alignment between the cutter 3 and the limiting groove 51. The detachable feature ensures convenience during equipment maintenance and blade spacing adjustment, while also providing reliable positioning during operation, improving the stability of the slitting width and the flexibility of equipment use.

[0053] 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 first bracket (101), a second bracket (102), several first adjusting blocks (21), and several second adjusting blocks (22). The axes of the first bracket (101) and the second bracket (102) are arranged at the same height and parallel, and both ends are fixedly installed on the frame by supports (1). The first adjustment block (21) and the second adjustment block (22) are opposite to each other. The first adjustment block (21) is installed on the first bracket (101), and the second adjustment block (22) is installed on the second bracket (102). The first adjustment block (21) is fixedly connected to the side facing the second adjustment block (22) with the first connection block (32). The second adjustment block (22) is fixedly connected to the side facing the first adjustment block (21) with the limit block (5). The limit block (5) has a limit slot (512). The upper side of the limit slot (512) is open, and the lower side is closed to form a support part (511). Each of the connecting blocks (32) is equipped with a cutter (3). One end of the cutter (3) is rotatably connected to the connecting block (32), and the other end is embedded in the limiting groove (512) to limit the width of the film (6).

2. The film slitting device according to claim 1, characterized in that, One end of the cutter (3) is rotatably mounted on the connecting block (32) by a bolt (33). One end of the bolt (33) passes through the mounting hole (34) of the cutter (3) and is threaded into the threaded hole (35) of the connecting block (32). The other end of the bolt (33) is fixedly connected to a stop block (31). The stop block (31), the cutter (3) and the connecting block (32) are pressed and fixed together.

3. The film slitting device according to claim 1, characterized in that, The lower end (302) of the cutter (3) abuts against the support (511) at the lower part of the limiting groove (51).

4. A film slitting device according to claim 3, characterized in that, The upper end of the limiting groove (51) is provided with a limiting groove opening (512), and an inclined inner wall (5121) is formed on the inner side of the limiting groove opening (512). The inclined inner wall (5121) is arranged in an inward inclination from top to bottom.

5. A film slitting apparatus according to claim 4, characterized in that, The lower half of the limiting groove (512) is vertical and forms a vertical inner wall (5122) on the inside. The width of the vertical inner wall (5122) is adapted to the thickness of the cutter (3).

6. A film slitting apparatus according to claim 4 or 5, characterized in that, The blade (301) of the cutter (3) is arranged toward the limiting groove (512) for the film (6) to be introduced and cut from one side of the limiting groove (512).

7. A film slitting apparatus according to claim 1, characterized in that, The first adjustment block (21) and the second adjustment block (22) are slidably mounted on the first bracket (101) and the second bracket (102), and can rotate circumferentially and slide axially along the outer surface of the first bracket (101) and the second bracket (102).

8. A film slitting apparatus according to claim 1, characterized in that, The cross-sections of the first bracket (101) and the second bracket (102) are circular.

9. A film slitting apparatus according to claim 3, characterized in that, The cutter (3) is arranged at an angle relative to the horizontal plane, and the cutter (3) is inclined from top to bottom toward the limiting block (5).

10. A film slitting apparatus according to claim 6, characterized in that, The blade (301) of the cutter (3) is set with its blade tip (301) facing upward.

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