Cutter mechanism and film splitting machine

Abstract

The utility model discloses a cutter mechanism and a film splitting machine. The cutter mechanism comprises a mounting bottom plate, a rotating assembly, a cutter shaft assembly and a cutter assembly, the cutter shaft assembly is arranged on the mounting bottom plate in a sliding mode, the cutter shaft assembly comprises a cutter shaft and shaft heads arranged on the two sides of the cutter shaft, and a mounting groove used for mounting the cutter assembly is formed in the cutter shaft; the rotating assembly is connected to the shaft head and used for driving the cutter shaft assembly to rotate. The cutter assembly comprises a blade base and a cutter blade, the cutter blade is detachably arranged on the blade base, and the blade base is arranged in the mounting groove in a sliding mode. The device has the advantages that the distance between the cutter blades can be set according to different film widths, the cutter changing station and the slitting station can be flexibly switched, the structure is simple, and cutter changing is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of film production, in particular to a cutter mechanism and a film slitter. Background Art

[0002] A slitter is used for slitting the width of materials such as films or polar plates. When the cutter assembly of the existing slitter is in use, it is inconvenient to change the cutter, and it takes a long time to adjust the distance between the cutters. In addition, the rotation of its cutter mostly adopts direct or indirect driving and rotation of the cutter by a servo motor, which requires a large space.

[0003] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical problems. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a cutter mechanism and a film slitter, which solve the problem of inconvenient cutter changing of the existing slitting mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A cutter mechanism includes a mounting base plate, a rotating assembly, a cutter shaft assembly and a cutter assembly;

[0007] The cutter shaft assembly is slidably arranged on the mounting base plate. The cutter shaft assembly includes a cutter shaft and shaft heads arranged on both sides of the cutter shaft. An installation groove for installing the cutter assembly is formed on the cutter shaft.

[0008] The rotating assembly is connected to the shaft head to drive the cutter shaft assembly to rotate;

[0009] The cutter assembly includes a blade base and a cutting blade. The cutting blade is detachably arranged on the blade base, and the blade base is slidably arranged in the installation groove.

[0010] In the above structure, the rotating assembly includes a rotating cylinder and a bearing seat. The shaft heads on both sides are rotatably connected to the bearing seat, and the end of one of the shaft heads is connected to the rotating cylinder.

[0011] In the above structure, the cutter assembly further includes a wedge block. The blade base is provided with a blade groove and a wedge groove adapted to the shape of the wedge block. The wedge groove communicates with the blade groove. The cutting blade is arranged in the blade groove, and the wedge block is detachably installed in the wedge groove to press the cutting blade against the blade base.

[0012] In the above structure, a locking limit block is fixedly connected to the side of the blade base facing away from the blade groove. A limit groove is formed in the cutter shaft, and the limit groove communicates with the installation groove. The length direction of the limit groove is parallel to the length direction of the installation groove. The locking limit block is slidably arranged in the limit groove, and the locking limit block is threadedly connected with a locking handle. When the locking handle abuts against the cutter shaft, the cutter assembly is locked to the cutter shaft.

[0013] In the above structure, a rotation adjustment assembly is further included. The rotation adjustment assembly includes an adjustment limit block, an angle adjustment screw, and a locking nut. The adjustment limit block is fixedly connected to the end of the shaft head on the side away from the rotary cylinder. The angle adjustment screw is threadedly connected to the bearing seat on this side. The angle adjustment screw is used to abut and limit the adjustment limit block during the rotation of the shaft head. The locking nut is threadedly connected to the angle adjustment screw and abuts against the bearing seat.

[0014] In the above structure, a slide rail is arranged on the installation base plate. A slider is slidably connected to the slide rail. The bottom of the two bearing seats is connected with a sliding side plate. The slider is fixedly connected to the bottom of the sliding side plate. A translation cylinder is fixedly connected to the installation base plate, and the piston rod of the translation cylinder is connected to the sliding side plate.

[0015] In the above structure, translation limit plates are fixedly connected to both ends of the installation base plate. The two translation limit plates limit the sliding stroke of the sliding side plate.

[0016] In the above structure, a buffer block facing the slide rail side is fixedly connected to the translation limit plate. When the sliding side plate slides to the end point of the stroke, the buffer block abuts against the sliding side plate.

[0017] In the above structure, a graduation scale is arranged in the length direction of the cutter shaft.

[0018] The present invention also provides:

[0019] A film slitting machine, including a cutter mechanism having the above structure.

[0020] The beneficial effects of the present invention are as follows: The blade base is slidably arranged in the installation groove, and the distance between the cutting blades can be set according to different film widths. By setting the rotation assembly and cooperating with the sliding of the cutter shaft assembly on the installation base plate, the switching between the slitting station and the tool changing station can be realized. The switching of the double stations is convenient for tool changing and film cutting, and can be flexibly applied in multiple process sections during the film production process. Description of the Drawings

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is a schematic diagram of the overall structure of the cutting tool mechanism of the present utility model;

[0023] Figure 2 is a schematic diagram of the structural disassembly of the cutting tool assembly in the present utility model;

[0024] Figure 3 is a schematic diagram of the rotation adjustment structure in the present utility model;

[0025] Figure 4 is Figure 1 a schematic diagram of part A in;

[0026] Figure 5 is a schematic diagram of the connection structure between the rotation assembly and the bottom plate in the present utility model.

[0027] Reference numerals:

[0028] 1. Installation bottom plate; 11. Slide rail; 111. Slide block; 12. Translation limit plate; 121. Buffer block; 13. Translation cylinder; 14. Sliding side plate;

[0029] 2. Tool shaft assembly; 21. Cutting tool shaft; 211. Installation groove; 212. Limit groove; 213. Index scale; 22. Shaft head;

[0030] 3. Cutting tool assembly; 31. Blade base; 311. Locking limit block; 312. Blade groove; 313. Wedge groove; 314. Stopper; 32. Cutting blade; 33. Wedge block; 331. Kidney-shaped deep hole; 332. Tightening bolt; 34. Locking handle;

[0031] 4. Rotation assembly; 41. Rotation cylinder; 42. Bearing seat;

[0032] 5. Rotation adjustment assembly; 51. Adjustment limit block; 52. Angle adjustment screw; 53. Locking nut. Detailed implementation manners

[0033] The following further describes the present utility model in conjunction with the attached Figures 1-5 drawings.

[0034] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all connection / linkage relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. Each technical feature in the creation of the present utility model can be interactively combined on the premise of not conflicting with each other.

[0035] Referring to Figure 1 and Figure 2 , the present utility model provides a cutting mechanism, which can be applied to the production process of wide-width films and multi-specification-width films. The cutting mechanism includes a mounting base plate 1, a rotating assembly 4, a cutter shaft assembly 2 and a cutting blade assembly 3. Among them, the mounting base plate 1 is used to mount and carry each component; the cutting blade assembly 3 includes a blade base 31 and a cutting blade 32, the cutting blade 32 is detachably arranged on the blade base 31, and the cutting blade assembly 3 is arranged on the cutter shaft assembly 2 to slit the film; the cutter shaft assembly 2 is used to carry the cutting blade assembly 3, and the cutter shaft assembly 2 is slidably arranged on the mounting base plate 1 to realize the switching between the slitting station and the tool-changing station; the rotating assembly 4 is connected to the cutter shaft assembly 2 to drive the cutter shaft assembly 2 to rotate for the tool-changing operation.

[0036] Referring to Figures 1 to 3 , the cutter shaft assembly 2 is slidably arranged on the mounting base plate 1. Specifically, the cutter shaft assembly 2 includes a cutter shaft 21 and shaft heads 22, and the two shaft heads 22 are respectively fixedly connected to both ends of the cutter shaft 21; the shaft heads 22 are connected to the rotating assembly 4, and the rotating assembly 4 drives the shaft heads 22 to rotate, thereby driving the entire cutter shaft assembly 2 to rotate. In this embodiment, the cutter shaft 21 has a cylindrical structure, and an installation groove 211 is provided on the cutter shaft 21, and the installation groove 211 is opened along the length direction of the cutter shaft 21.

[0037] Referring to Figure 2 and Figure 3, the cutting tool assembly 3 includes a blade base 31 and a cutting blade 32. The cutting blade 32 is detachably arranged on the blade base 31, and the blade base 31 is slidably installed in the installation groove 211. Specifically, the cutting tool assembly 3 further includes a wedge block 33. A wedge groove 313 and a blade groove 312 are formed on the blade base 31. The wedge groove 313 communicates with the blade groove 312. The cutting blade 32 is installed in the blade groove 312. The shape of the wedge groove 313 is adapted to the wedge block 33. The wedge block 33 is detachably arranged in the wedge groove 313 to press the cutting blade 32 against the blade base 31 to realize the installation and fixation of the cutting blade 32. In this embodiment, a tightening bolt 332 is connected to the wedge block 33. A kidney-shaped deep hole 331 is formed on the wedge block 33. The tail of the tightening bolt 332 passes through the kidney-shaped deep hole 331 and is threadedly connected to the blade base 31. When the cutting blade 32 needs to be installed and fixed, the cutting blade 32 and the wedge block 33 are respectively installed in the blade groove 312 and the wedge groove 313. The cutting blade 32 is pressed against the groove wall of the blade groove 312, and then the tightening bolt 332 is tightened. Since the kidney-shaped deep hole 331 is provided on the wedge block 33, during the process of tightening the tightening bolt 332, the wedge block 33 will slide downward along the shape of the wedge groove 313, so that the cutting blade 32 is closely attached to the groove wall of the blade groove 312, and the side surface of the wedge block 33 is also closely attached to the cutting blade 32, thereby realizing the installation and fixation of the cutting blade 32. The wedge block 33 and the tightening bolt 332 are used in cooperation to install and fix the cutting blade 32, with strong reliability, effectively ensuring the stability of the installation of the cutting blade 32, reducing the possibility of the cutting blade 32 shifting during slitting, and the structure is simple for installation and disassembly, which is beneficial to improving the replacement efficiency of the cutting blade 32.

[0038] Referring to Figure 2 , further, a stop block 314 is fixedly connected to the side groove opening of the blade groove 312 of the blade base 31. When the cutting blade 32 is installed in the blade groove 312, the stop block 314 limits the cutting blade 32 to further reduce the possibility of the cutting blade 32 shifting during use.

[0039] In actual setting, according to the actual demand for the number of cutting blades 32, a plurality of cutting tool assemblies 3 can be correspondingly arranged on the cutting tool shaft 21 to meet the requirements of multi-segment slitting. The blade base 31 is slidably arranged on the cutting tool shaft 21, which is convenient for adjusting the distance between the cutting blades 32 to meet the slitting requirements of multi-specification width films, and effectively improves the applicable range of the cutting tool mechanism.

[0040] Referring to Figure 2 and Figure 4 , further, in order to improve the adjustment accuracy of the distance between the cutting blades 32, a graduation scale 213 is arranged on the cutting tool shaft 21. The graduation scale 213 can enable the operator to visually observe the amount of adjustment distance, effectively ensuring the adjustment accuracy.

[0041] Referring to Figures 2 to 4, a locking and limiting block 311 is fixedly connected to one side of the blade base 31 facing away from the blade groove 312. A limiting groove 212 is formed in the cutter shaft 21, and the limiting groove 212 communicates with the installation groove 211. The length direction of the limiting groove 212 is parallel to the length direction of the installation groove 211. When the blade base 31 slides in the installation groove 211, the locking and limiting block 311 slides in the limiting groove 212. The locking and limiting block 311 is threadedly connected with a locking handle 34. When the locking handle 34 abuts against the cutter shaft 21, the cutter assembly 3 is locked to the cutter shaft 21, that is, at this time, the blade base 31 and the cutter shaft 21 are fixed and cannot slide relative to each other. When it is necessary to change the position of the cutting blade 32, first loosen the locking handle 34 and then slide the blade base 31. When it slides to the required position, tighten the locking handle 34 again.

[0042] Refer to Figure 1 and Figure 5 , the rotating assembly 4 includes a rotating cylinder 41 and a bearing seat 42. The shaft heads 22 on both sides are respectively rotatably connected to the corresponding bearing seats 42, and the end of one of the shaft heads 22 is connected to the rotating cylinder 41. The rotating cylinder 41 can drive the cutter shaft assembly 2 to perform a rotating motion, driving the cutter shaft to rotate from the slitting side to the tool changing side, so as to realize the switching between the slitting station and the tool changing station. And the rotating cylinder 41 has high rotation accuracy and stability, can accurately control the rotation angle and rotation speed, has a simple structure and small space occupation. Compared with the existing cutter mechanism that uses a low-power servo motor or other mechanical rotating mechanisms, it can effectively save the floor space while meeting the requirements.

[0043] Refer to Figure 3 and Figure 5, further comprising a rotation adjustment assembly 5 for adjusting the deflection angle of the cutting blade 32 so that the slitting mechanism can produce a better cutting effect. The rotation adjustment assembly 5 includes an adjustment limit block 51, an angle adjustment screw 52, and a locking nut 53. The angle adjustment screws 52 and the locking nuts 53 are provided in one-to-one correspondence. In this embodiment, two sets of angle adjustment screws 52 and locking nuts 53 are provided. The adjustment limit block 51 is fixedly connected to the end of the shaft head 22 on the side away from the rotary cylinder 41. The angle adjustment screw 52 is threadedly connected to the bearing seat 42 on the corresponding side. During the rotation of the adjustment limit block 51 following the shaft head 22, the adjustment limit block 51 will abut against the angle adjustment screw 52 to limit the deflection angle of the adjustment cutting blade 32. The two sets of angle adjustment screws 52 are respectively arranged on both sides of the bearing seat 42. During the rotation of the shaft head 22, the adjustment limit block 51 will sequentially abut against the angle adjustment screws 52 on both sides to limit the deflection of both sides of the cutting blade 32. The locking nut 53 is threadedly connected to the angle adjustment screw 52 and abuts against the bearing seat 42 to fasten the locking nut 53 to the bearing seat 42. When it is necessary to adjust the deflection angle of the cutting blade 32, rotate the locking nut 53 and the angle adjustment screw 52 to adjust the length of the angle adjustment screw 52 entering the bearing seat 42 to limit the rotation range of the adjustment limit block 51, thereby realizing the deflection angle adjustment. It should be noted that since the stroke of the rotary cylinder 41 is 0-180°, the adjustable angle range of the cutting blade 32 is only limited to the stroke of the rotary cylinder 41. In addition, the length of the angle adjustment screw 52 is greater than or equal to the height of the bearing seat 42 to ensure that the angle adjustment screw 52 can abut and limit the adjustment limit block 51 within the rotation limit.

[0044] Refer to Figure 1 and Figure 5, the tool shaft assembly 2 is slidably arranged on the mounting base plate 1. Specifically, a slide rail 11 is fixedly connected to the mounting base plate 1, and a slider 111 is slidably connected to the slide rail 11. The bottom of the bearing seat 42 is fixedly connected with a sliding side plate 14, and the slider 111 is fixedly connected to the bottom of the sliding side plate 14; a translation cylinder 13 is fixedly arranged on the mounting base plate 1, and the piston rod of the translation cylinder 13 is fixedly connected to the sliding side plate 14. The extension or retraction of the piston rod of the translation cylinder 13 drives the sliding side plate 14 to slide on the mounting base plate 1 to realize the reciprocating movement of the tool shaft assembly 2 on the mounting base plate 1, and complete the switching between the slitting station and the tool changing station. One end of the mounting base plate 1 in the length direction is the slitting station, and the other end is the tool changing station. When the film slitting operation needs to be carried out, the translation cylinder 13 drives the tool shaft assembly 2 to move to the slitting station; when the cutting tool needs to be replaced, the translation cylinder 13 drives the tool shaft assembly 2 to move to the tool changing station to facilitate the subsequent tool changing work. The tool shaft assembly 2 can reciprocate on the mounting base plate 1 and, in combination with the use of the rotary cylinder 41, when the translation cylinder 13 drives the tool shaft assembly 2 to move to the tool changing station, the rotary cylinder 41 drives the tool shaft assembly 2 to rotate from the slitting side to the tool changing side, and at this time, the tool changing operation can be carried out. The switching of the double stations is convenient for film cutting and tool changing, and can be flexibly applied in multiple process sections of the film production process.

[0045] Furthermore, translation limit plates 12 are fixedly connected to both ends of the mounting base plate 1, and buffer blocks 121 are fixedly connected to the translation limit plates 12. By setting the limit plates, the translation stroke of the tool shaft assembly 2 is restricted, reducing the possibility of the tool shaft assembly 2 disengaging from the slide rail 11 during translation.

[0046] Furthermore, buffer blocks 121 are fixedly connected to one side of the two translation limit plates 12 facing the slide rail 11. The buffer blocks 121 play a buffering role and can be made of elastic materials such as rubber. By setting the buffer blocks 121, when the sliding side plate 14 slides to both ends of the mounting base plate 1, the buffer blocks 121 abut against the sliding side plate 14 to buffer the hard limit of the translation limit plates 12, effectively ensuring the service life of the sliding structure.

[0047] The present utility model also provides:

[0048] A film slitting machine, including a cutting tool mechanism with the above-described structure.

[0049] The above is a specific description of the preferred embodiment of the present utility model, but the creation of the present utility model is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A cutting mechanism, characterized in that: It includes a mounting base plate, a rotating assembly, a knife shaft assembly and a cutting knife assembly; The cutter shaft assembly is slidably arranged on the mounting base plate, and the cutter shaft assembly comprises a cutter shaft and shaft heads arranged on both sides of the cutter shaft, and the cutter shaft is provided with a mounting groove for mounting the cutter assembly; The rotating assembly is connected to the shaft head to drive the knife shaft assembly to rotate; The cutter assembly comprises a blade base and a cutter blade. The cutter blade is detachably arranged on the blade base, and the blade base is slidably arranged in the mounting groove.

2. A cutting mechanism according to claim 1, characterized in that: The rotating assembly comprises a rotating cylinder and a bearing seat, the shaft heads on both sides are rotatably connected to the bearing seats, and the end of the shaft head on one side is connected to the rotating cylinder.

3. A cutting mechanism according to claim 1, characterized in that: The cutter assembly also includes a wedge block, the blade base is provided with a blade groove and a wedge groove adapted to the shape of the wedge block, the wedge groove is connected to the blade groove, the cutting blade is arranged in the blade groove, and the wedge block can be detachably installed in the wedge groove to press the cutting blade against the blade base.

4. A cutting mechanism according to claim 3, characterized in that: A locking limit block is fixedly connected to the blade base on the side facing away from the blade slot, a limit slot is provided on the cutter shaft, the limit slot is connected to the mounting slot, and the length direction of the limit slot is parallel to the length direction of the mounting slot, the locking limit block is slidably arranged in the limit slot, and a locking handle is threadedly connected to the locking limit block, and the cutter assembly is locked to the cutter shaft when the locking handle is pressed against the cutter shaft.

5. A cutting mechanism according to claim 2, characterized in that: It also includes a rotation adjustment component, which includes an adjustment limit block, an angle adjustment screw and a locking nut. The adjustment limit block is fixedly connected to the end of the shaft head on the side away from the rotating cylinder, and the angle adjustment screw is threadedly connected to the bearing seat on this side. The angle adjustment screw is used to abut and limit the adjustment limit block during the rotation of the shaft head, and the locking nut is threadedly connected to the angle adjustment screw and abuts against the bearing seat.

6. A cutting mechanism according to claim 5, characterized in that: A slide rail is provided on the mounting base plate, a slider is slidably connected to the slide rail, a sliding side plate is connected to the bottom of the bearing seat on both sides, the slider is fixedly connected to the bottom of the sliding side plate, a translation cylinder is fixedly connected to the mounting base plate, and a piston rod of the translation cylinder is connected to the sliding side plate.

7. A cutting mechanism according to claim 6, characterized in that: Both ends of the installation base plate are fixedly connected with translation limit plates, and the translation limit plates on both sides limit the sliding stroke of the sliding side plates.

8. A cutting mechanism according to claim 7, characterized in that: A buffer block facing one side of the slide rail is fixedly connected to the translation limiting plate. When the sliding side plate slides to an end point of the stroke, the buffer block abuts against the sliding side plate.

9. A cutting mechanism according to claim 1, characterized in that: A graduation scale is arranged in the length direction of the cutter shaft.

10. A film slitting machine, characterized in that: A cutting mechanism comprising any one of claims 1-9.

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