Film slitting mechanism

Abstract

The utility model relates to the technical field of film slitting equipment, in particular to a film slitting mechanism which comprises a support. The rotating shaft is rotatably arranged on the bracket in the horizontal direction; a plurality of cutter assemblies are arranged on the rotating shaft at intervals in the axial direction of the rotating shaft, and the cutter assemblies are in sliding fit with the rotating shaft in the axial direction of the rotating shaft; wherein scales are arranged on the rotating shaft in the axial direction of the rotating shaft; and the driving motor is arranged on the support, an output shaft of the driving motor is in driving connection with the rotating shaft, and the driving motor is suitable for driving the rotating shaft to rotate so as to drive the cutter assembly to slit the film. The technical problems that the distance between every two adjacent cutters cannot be adjusted in the installation mode of the cutters of an existing slitting mechanism, flexible adjustment cannot be conducted according to the actual requirement of the edge cutting width, and adaptability is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of film slitting equipment, in particular to a film slitting mechanism. Background Art

[0002] During the rolling process of the film, the film needs to be trimmed according to actual needs. In the film making equipment, the film is usually conveyed to the slitting mechanism through the pressure roller for trimming. Most of the film trimming processes are passive rotary film cutting with a ring knife or fixed film cutting with a blade. For high-requirement, high-precision processing, the passive film cutting with a ring knife or the fixed film cutting with a blade is not the best and is prone to burrs.

[0003] The existing slitting mechanism usually includes a slitting frame, a rotating shaft and multiple cutters. The rotating shaft is set on the slitting frame, and the cutters are fixed on the rotating shaft. The rotating shaft is driven by a driving motor to drive the cutters to rotate to slit the film. However, the existing installation method of the cutter cannot adjust the distance between two adjacent cutters, cannot be flexibly adjusted according to the actual needs of the cutting edge width, and has poor adaptability. Utility Model Content

[0004] The utility model provides a film slitting mechanism, which solves the technical problems that the installation method of the cutter of the existing slitting mechanism cannot adjust the distance between two adjacent cutters, cannot be flexibly adjusted according to the actual demand of the cutting edge width, and has poor adaptability.

[0005] In view of this, the utility model provides a film slitting mechanism, comprising:

[0006] Bracket;

[0007] A rotating shaft is rotatably arranged on the bracket in a horizontal direction; a plurality of groups of cutter assemblies are arranged on the rotating shaft along its axial direction at intervals, and the cutter assemblies are slidably matched with the rotating shaft along the axial direction of the rotating shaft; wherein a scale is arranged on the rotating shaft along its axial direction;

[0008] The driving motor is arranged on the bracket, and the output shaft of the driving motor is drivingly connected with the rotating shaft, and is suitable for driving the rotating shaft to rotate so as to drive the cutting knife assembly to cut the film.

[0009] Optionally, the cutter assembly includes a cutter seat and a ring cutter, the ring cutter sleeve is mounted on the cutter seat; the cutter seat is slidably mounted on the rotating shaft, and a fastening screw penetrates the circumference of the cutter seat, suitable for being fixed to the rotating shaft through the fastening screw.

[0010] Optionally, an annular mounting portion is provided on the circumferential side of the knife seat, the annular knife is screwed to the annular mounting portion, and a gasket is provided on the side of the annular knife away from the annular mounting portion.

[0011] Optionally, a first synchronous wheel is sleeved on one end of the rotating shaft; the driving motor is located below the rotating shaft, and an output end of the driving motor is connected to a second synchronous wheel corresponding to the first synchronous wheel, and the second synchronous wheel is connected to the first synchronous wheel through a synchronous belt;

[0012] And / or, both ends of the rotating shaft are rotatably connected to the bracket via bearings; both ends of the rotating shaft extend out of the bearings, and both ends of the rotating shaft are connected to first limit members, and the two first limit members are suitable for limiting the axial movement of the rotating shaft.

[0013] Optionally, it also includes a support, and the support is slidably connected in the support along the vertical direction; a lifting adjustment component is provided on the support, and the adjustment end of the lifting adjustment component is connected to the support, suitable for driving the support to rise or fall to adjust the distance between the cutter assembly and the pressure roller.

[0014] Optionally, the lifting and adjusting assembly includes a mounting plate, a wedge block and a driving assembly; the mounting plate is fixedly connected to the support; a first guide rail is provided on the mounting plate in the horizontal direction, the wedge block is slidably connected to the first guide rail through a first slider, and the inclined surface of the wedge block abuts against the bottom peripheral side of the bracket; the driving assembly is arranged on the mounting plate, and the output end of the driving assembly is drivingly connected to the wedge block, suitable for driving the wedge block to slide on the mounting plate.

[0015] Optionally, the drive assembly includes a servo motor and a screw, the servo motor is arranged on the mounting plate; the output shaft of the servo motor is drivingly connected to the screw; the axial direction of the screw is arranged along the sliding direction of the wedge block, and the screw is connected to the wedge block through a nut seat.

[0016] Optionally, a second limiting member is provided on the mounting plate, and the second limiting member is located at an end of the screw rod away from the servo motor, and is suitable for abutting against the nut seat for limiting.

[0017] Optionally, a plurality of photoelectric sensors are provided on the mounting plate at intervals along the axial direction of the screw rod; the plurality of photoelectric sensors are located on the side of the screw rod away from the wedge block; a sensor sensing sheet for cooperating with the photoelectric sensor is provided on the nut seat, and the photoelectric sensor is communicatively connected to the servo motor.

[0018] Optionally, a displacement sensor is provided on the support, a detection end of the displacement sensor is vertically oriented toward the bracket, and is suitable for detecting an adjustment distance of the bracket, and the displacement sensor is communicatively connected with the driving assembly;

[0019] And / or, both side walls inside the support are provided with second guide rails along the vertical direction, and both ends of the bracket are slidably connected to the second guide rails through second sliders;

[0020] And / or, both ends of the support are provided with third sliders, the third sliders are slidably connected to third guide rails, and the third guide rails are adapted to be fixedly connected to external equipment; wherein, the sliding direction of the third guide rails is consistent with the adjustment direction of the pressure roller;

[0021] And / or, two sets of lifting and adjusting assemblies are provided, and the two sets of lifting and adjusting assemblies are arranged on the support at intervals along the length direction of the rotating shaft;

[0022] And / or, the bottom of the bracket abuts against the wedge block through a cylindrical ball slider.

[0023] The technical solution of the present utility model has the following advantages:

[0024] In the present utility model, when it is necessary to slit the film, the distance between multiple groups of cutter assemblies can be adjusted by sliding the multiple groups of cutter assemblies on the rotating shaft according to the actual required trimming width to meet the slitting requirements, which improves the flexibility of adjustment and has strong applicability. After adjustment, the rotating shaft is driven to rotate by a driving motor, and then the cutter assemblies are driven to actively slit the conveyed film. The trimmed edge is relatively flat, burrs are avoided, the trimming effect is improved, and at the same time, manual trimming can be avoided, and the trimming efficiency is improved. When the cutter assemblies are adjusted, calibration can be directly performed through the scale on the rotating shaft, avoiding adjustment through external equipment such as a ruler, which is convenient and fast, and improves the adjustment accuracy and adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of the film slitting mechanism provided by the present utility model from the first perspective;

[0027] Figure 2 It is a schematic structural diagram of the bracket provided by the present utility model;

[0028] Figure 3 It is a schematic structural diagram of the lifting and adjusting assembly provided by the present utility model;

[0029] Figure 4Schematic diagram of the film slitting mechanism provided by the present utility model from the third perspective.

[0030] Description of the reference numerals:

[0031] 1. Bracket; 2. Rotating shaft; 3. Scale; 4. Driving motor; 5. Tool holder; 6. Circular knife; 7. Fastening screw; 8. Annular mounting part; 9. Gasket; 10. First synchronous pulley; 11. Second synchronous pulley; 12. Synchronous belt; 13. Bearing; 14. First limiting member; 15. Support; 16. Pressing roller; 17. Mounting plate; 18. Wedge block; 19. First guide rail; 20. First slider; 21. Servo motor; 22. Lead screw; 23. Nut seat; 24. Photoelectric sensor; 25. Sensor induction piece; 26. Displacement sensor; 27. Second guide rail; 28. Second slider; 29. Third slider; 30. Third guide rail; 31. Cylindrical ball slider; 32. Limiting block; 33. Limiting bolt. Detailed implementation manners

[0032] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] Please refer to Figures 1 to 4 , a film slitting mechanism provided in this embodiment includes: a bracket 1; a rotating shaft 2 rotatably arranged on the bracket 1 in the horizontal direction; a plurality of cutter assemblies are arranged at intervals along the axial direction of the rotating shaft 2, and the cutter assemblies are slidably matched with the rotating shaft 2 along the axial direction of the rotating shaft 2; wherein, a scale 3 is arranged along the axial direction of the rotating shaft 2; a driving motor 4 is arranged on the bracket 1, and the output shaft of the driving motor 4 is drivingly connected to the rotating shaft 2, and is adapted to drive the rotating shaft 2 to rotate to drive the cutter assemblies to slit the film.

[0038] It should be noted that the cutter assemblies are located on the side of the bracket 1 facing the film; the number of cutter assemblies can be set to 2, 3, 4 or more, and can be selected according to actual needs.

[0039] In this embodiment, when the film needs to be slit, the distance between multiple cutter assemblies can be adjusted by sliding the multiple cutter assemblies on the rotating shaft 2 according to the actual required cutting edge width to meet the slitting requirements, which improves the flexibility of adjustment and has strong applicability. After adjustment, the driving motor 4 drives the rotating shaft 2 to rotate, and then drives the cutter assemblies to actively slit the conveyed film. The cutting edge is relatively flat, avoiding the generation of burrs, improving the cutting edge effect, and at the same time avoiding manual cutting, improving the cutting efficiency. When adjusting the cutter assemblies, calibration can be directly carried out through the scale 3 on the rotating shaft 2, avoiding adjustment through external devices such as rulers, which is convenient and fast, and improves the adjustment accuracy and adjustment efficiency.

[0040] Example 2

[0041] As a further improvement to the embodiment, as shown in Figure 1 and Figure 2 , the cutter assembly includes a tool holder 5 and an annular cutter 6, and the annular cutter 6 is sleeved on the tool holder 5; the tool holder 5 is slidably sleeved on the rotating shaft 2, and a fastening screw 7 penetrates through the circumferential side of the tool holder 5 and is adapted to be fixed to the rotating shaft 2 through the fastening screw 7.

[0042] It should be noted that the fastening screw 7 is threadedly connected to the tool holder 5.

[0043] In this embodiment, the tool holder 5 facilitates the installation of the annular cutter 6, improves the support strength, and at the same time facilitates the sliding adjustment of the positions of multiple annular cutters 6 on the rotating shaft 2. After adjusting the position of the annular cutter 6, the fastening screw 7 is rotated to abut against the rotating shaft 2 for fixation. When adjustment is required, the fastening screw 7 is loosened in the reverse direction to facilitate adjustment, and the adjustment method is convenient and fast.

[0044] On the basis of the above implementation manner, in a preferred implementation manner, as shown inFigure 2 As shown, an annular mounting portion 8 is provided on the circumferential side of the tool holder 5. The annular cutter 6 is connected to the annular mounting portion 8 by screws, and a gasket 9 is provided on the side of the annular cutter 6 facing away from the annular mounting portion 8.

[0045] In this embodiment, by providing the annular mounting portion 8 on the tool holder 5 to connect the annular cutter 6, the connection strength of the annular cutter 6 is improved, loosening during use is avoided, the service life is prolonged. At the same time, a gasket 9 is provided on the side of the annular cutter 6 facing away from the annular mounting portion 8 for screw connection, that is, the screw passes through the gasket 9, the annular cutter 6 and the annular mounting portion 8 in sequence for connection. The gasket 9 increases the friction force, avoids screw loosening, and improves stability.

[0046] Based on the above embodiment, in a preferred embodiment, as Figure 2 shown, a first synchronous pulley 10 is sleeved on one end of the rotating shaft 2; the driving motor 4 is located below the rotating shaft 2, and a second synchronous pulley 11 is connected to the output end of the driving motor 4 corresponding to the first synchronous pulley 10. The second synchronous pulley 11 is connected to the first synchronous pulley 10 by a synchronous belt 12.

[0047] It should be noted that the axial direction of the second synchronous pulley 11 is parallel to the axial direction of the first synchronous pulley 10.

[0048] In this embodiment, when it is necessary to drive the rotating shaft 2 for slitting, the output end of the driving motor 4 drives the second synchronous pulley 11 to rotate. At the same time, the second synchronous pulley 11 drives the first synchronous belt 12 to rotate through the synchronous belt 12, and then drives the rotating shaft 2 to rotate to drive the cutter assembly to perform slitting.

[0049] Based on the above embodiment, in a preferred embodiment, as Figure 2 shown, both ends of the rotating shaft 2 are rotatably connected to the bracket 1 through bearings 13; both ends of the rotating shaft 2 extend out of the bearings 13, and first limit members 14 are connected to both ends of the rotating shaft 2. The two first limit members 14 are adapted to limit the axial movement of the rotating shaft 2.

[0050] In this embodiment, the rotating shaft 2 is rotatably connected to the bracket 1 through the bearing 13, which improves the smoothness of the rotation process. At the same time, first limit members 14 are provided on the parts of the rotating shaft 2 extending out of the bearings 13. The two first limit members 14 are respectively at both ends of the rotating shaft 2. When the rotating shaft 2 deviates axially, the two first limit members 14 abut against the bearings 13 for limiting, avoiding the axial movement of the rotating shaft 2 and improving stability.

[0051] Specifically, as Figure 2As shown, the first limiting member 14 is a limiting nut. The limiting nut is sleeved on the rotating shaft 2, and the limiting nut is in threaded connection with the rotating shaft 2, which is convenient for installation and disassembly. By abutting two limiting nuts against the bearing 13, the rotating shaft 2 is limited to prevent axial displacement and improve stability.

[0052] On the basis of the above embodiment, in a preferred embodiment, as Figure 1 and Figure 4 shown, it further includes a support 15. The bracket 1 is slidably connected in the support 15 in the vertical direction; a lifting adjustment assembly is provided on the support 15, and the adjustment end of the lifting adjustment assembly is connected to the bracket 1, and is adapted to drive the bracket 1 to rise or fall to adjust the distance between the cutter assembly and the pressure roller 16.

[0053] It should be noted that the support 15 is adapted to be connected to an external device. In this embodiment, the cutter assembly can be arranged below the pressure roller 16 for slitting.

[0054] In this embodiment, when the film is conveyed to the cutter assembly through the pressure roller 16, it is necessary to adjust the gap between the pressure roller 16 and the cutter assembly to prevent the distance between the cutter assembly and the pressure roller 16 from being too small, which may cause the pressure roller 16 to directly contact the cutter assembly, thereby damaging the pressure roller 16, resulting in problems such as non-compliance of the accuracy of the pressure roller 16 and poor uniformity of the produced film. By means of the lifting adjustment assembly, the height of the bracket 1 in the vertical direction can be adjusted, and then the distance between the cutter and the pressure roller 16 can be adjusted to prevent damage to the pressure roller 16 and improve its service life.

[0055] On the basis of the above embodiment, in a preferred embodiment, as Figure 3 and Figure 4 shown, the lifting adjustment assembly includes a mounting plate 17, a wedge block 18 and a driving assembly; the mounting plate 17 is fixedly connected to the support 15; a first guide rail 19 is provided on the mounting plate 17 in the horizontal direction. The wedge block 18 is slidably connected to the first guide rail 19 through a first slider 20, and the inclined surface of the wedge block 18 abuts against the circumferential side of the bottom of the bracket 1; the driving assembly is arranged on the mounting plate 17, and the output end of the driving assembly is drivingly connected to the wedge block 18 and is adapted to drive the wedge block 18 to slide on the mounting plate 17.

[0056] It should be noted that in this embodiment, no specific limitation is made on the direction of the first guide rail 19. Preferably, the first guide rail 19 is arranged in a direction perpendicular to the rotating shaft 2, and the wedge block 18 is located between the mounting plate 17 and the bracket 1.

[0057] In this embodiment, the bottom circumferential side of the bracket 1 is abutted by the wedge block 18. When the height of the bracket 1 needs to be adjusted, the wedge block 18 slides through the cooperation of the first slider 20 and the first guide rail 19, improving the smoothness of the sliding. The wedge block 18 is driven by the driving component to move away from or close to the bracket 1, and the support height is adjusted by changing the support position of the bracket 1 on the inclined surface of the wedge block 18.

[0058] As a transformable implementation manner, it can also be that the lifting and adjusting component is a hydraulic rod, a linear module or a ball screw 22 assembly, etc., and those skilled in the art can select according to the actual situation.

[0059] On the basis of the above implementation manner, in a preferred implementation manner, as Figure 4 shown, the bottom of the bracket 1 abuts against the wedge block 18 through the cylindrical ball slider 31.

[0060] In this embodiment, by abutting the cylindrical ball slider 31 against the wedge block 18, the friction force is reduced, the wear between the bracket 1 and the wedge block 18 is reduced, the smoothness of the adjustment is improved, and the adjustment accuracy is ensured.

[0061] Specifically, the cylindrical ball slider 31 includes a fixing part and a plurality of cylindrical balls. The top of the fixing part is connected to the bracket 1. A plurality of cylindrical balls are rotatably arranged on the top of the fixing part. The axial direction of the cylindrical balls is perpendicular to the moving direction of the wedge block 18, which can reduce the friction force, reduce the wear between the bracket 1 and the wedge block 18, improve the smoothness of the adjustment, and ensure the adjustment accuracy.

[0062] On the basis of the above implementation manner, in a preferred implementation manner, as Figure 3 shown, the driving component includes a servo motor 21 and a screw rod 22. The servo motor 21 is arranged on the mounting plate 17; the output shaft of the servo motor 21 is drivingly connected to the screw rod 22; the axial direction of the screw rod 22 is arranged along the sliding direction of the wedge block 18, and the screw rod 22 is connected to the wedge block 18 through a nut seat 23.

[0063] In this embodiment, when the movement of the wedge block 18 needs to be adjusted, the servo motor 21 is started to drive the screw rod 22 to rotate, and then the screw rod 22 drives the nut seat 23 to drive the wedge block 18 to move.

[0064] On the basis of the above implementation manner, in a preferred implementation manner, as Figure 3 shown, a second limiting member is arranged on the mounting plate 17. The second limiting member is located at one end of the screw rod 22 away from the servo motor 21 and is adapted to abut against the nut seat 23 for limiting.

[0065] In this embodiment, the nut seat 23 is limited by the second limiting member to prevent the movement distance of the wedge block 18 from being too large.

[0066] Specifically, the present embodiment does not limit the specific structure of the second limit member. Preferably, the second limit member includes a limit block 32 and a limit bolt 33. The limit block 32 is connected to the mounting plate 17 and is located at the end of the screw rod 22 away from the servo motor 21. The limit bolt 33 is penetrated on the limit block 32 along the axial direction of the screw rod 22. The limit bolt 33 is threadedly connected to the limit block 32. The limit bolt 33 is aligned with the nut seat 23 in the axial direction of the screw rod 22, and is suitable for abutting the nut seat 23 for limiting. The nut seat 23 is limited by the limit bolt 33, and the limiting distance can be adjusted. At the same time, it has a buffering effect when abutting the nut seat 23. The second limit member can also be set as a block component, which can be selected according to actual conditions.

[0067] Based on the above embodiment, in a preferred embodiment, a plurality of photoelectric sensors 24 are provided on the mounting plate 17 at intervals along the axial direction of the screw rod 22; the plurality of photoelectric sensors 24 are located on the side of the screw rod 22 away from the wedge block 18; a sensor sensing sheet 25 for cooperating with the photoelectric sensor 24 is provided on the nut seat 23, and the photoelectric sensor 24 is communicatively connected with the servo motor 21.

[0068] It should be noted that the photoelectric sensor 24 is communicatively connected to the servo motor 21 via the controller.

[0069] Communication connection refers to the communication between connected devices through signal transmission interaction, including wired connection (such as through wires, network cables, etc.) and wireless connection (such as WiFi, 4G connection, etc.).

[0070] In this embodiment, the moving distance of the nut seat 23 is detected by cooperating with multiple groups of photoelectric sensors 24 and sensor sensing sheets 25, so that the moving distance of the wedge block 18 can be detected. When it moves to the appropriate position, the signal is fed back to the servo motor 21, and the adjustment of the wedge block 18 can be stopped, thereby improving the adjustment accuracy and intelligence.

[0071] Specifically, the servo motor is connected to the lead screw through a coupling, thereby improving stability and safety during the transmission process.

[0072] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 4 As shown, a displacement sensor 26 is provided on the support 15 , and a detection end of the displacement sensor 26 is vertically oriented toward the bracket 1 , suitable for detecting the adjustment distance of the bracket 1 , and the displacement sensor 26 is communicatively connected with the driving assembly.

[0073] It should be noted that the displacement sensor 26 is communicatively connected with the driving component via the controller.

[0074] In this embodiment, the displacement sensor 26 is used to detect the adjustment distance of the bracket 1 in the vertical direction, so as to understand the adjustment distance of the cutter assembly in real time. When it moves to an appropriate position, a signal is fed back to the drive assembly, and then the adjustment of the wedge block 18 can be stopped, further improving the adjustment accuracy and the degree of intelligence.

[0075] Specifically, the displacement sensor 26 can be an optoelectronic displacement sensor 26 or a digital laser displacement sensor, etc. Specifically, those skilled in the art can select according to the actual situation.

[0076] On the basis of the above-mentioned implementation manner, in a preferred implementation manner, as Figure 2 shown, second guide rails 27 are provided on both side walls in the support 15 along the vertical direction, and both ends of the bracket 1 are slidably connected to the second guide rails 27 through second sliders 28.

[0077] In this embodiment, the bracket 1 is matched with the second guide rail 27 through the second slider 28 to improve the smoothness during the adjustment process.

[0078] On the basis of the above-mentioned implementation manner, in a preferred implementation manner, as Figure 1 and Figure 4 shown, third sliders 29 are provided at both ends of the support 15, and the third sliders 29 are slidably connected to third guide rails 30, and the third guide rails 30 are adapted to be fixedly connected to external equipment; wherein, the sliding direction of the third guide rails 30 is the same as the adjustment direction of the pressure roller 16.

[0079] In this embodiment, when the pressure roller 16 is adjustable, in order to keep the distance between the cutter assembly and the pressure roller 16 relatively static, the third slider 29 is matched with the third guide rail 30 to adjust synchronously with the pressure roller 16 to maintain stability.

[0080] Specifically, the support 15 is adapted to be fixedly connected to the pressure roller 16 so as to adjust simultaneously and keep the distance between the two.

[0081] On the basis of the above-mentioned implementation manner, in a preferred implementation manner, two sets of lifting and adjusting assemblies are provided, and the two sets of lifting and adjusting assemblies are arranged on the support 15 at intervals along the length direction of the rotating shaft 2.

[0082] In this embodiment, two sets of lifting and adjusting assemblies can be provided, and they are evenly spaced on the support 15 to adjust the bracket 1 at the same time, improving the adjustment strength.

[0083] The working principle of the film slitting mechanism provided in this embodiment is as follows: When film slitting is required, the fastening screw 7 can be loosened according to the actual required trimming width. The circular knife 6 is driven by the tool holder 5 to slide on the rotating shaft 2. At the same time, the distance between each circular knife 6 is determined according to the scale 3 on the rotating shaft 2. After adjustment, the fastening screw 7 is tightened to abut against the rotating shaft 2 for fixation to meet the slitting requirements, improving the flexibility of adjustment and having strong applicability. After adjustment, the rotating shaft 2 is driven to rotate by the driving motor 4, and then the circular knife 6 is driven to actively slit the conveyed film. The trimmed edge is relatively flat, burrs are avoided, the trimming effect is improved, and at the same time, manual trimming can be avoided, improving the trimming efficiency. Calibration is directly carried out through the scale 3 on the rotating shaft 2, which is convenient and fast, improving the adjustment accuracy and adjustment efficiency. In addition, when the distance between the circular knife 6 and the pressure roller 16 needs to be adjusted, the lead screw 22 is driven to rotate by the servo motor 21, and then the lead screw 22 drives the nut seat 23 to drive the wedge block 18 to move to support the bracket 1 to adjust the height. At the same time, real-time detection is carried out in cooperation with the displacement sensor 26 or the photoelectric sensor 24 to improve the adjustment accuracy. It solves the technical problem that the installation method of the cutting knife of the existing slitting mechanism cannot adjust the distance between two adjacent cutting knives and cannot be flexibly adjusted according to the actual requirements of the trimming width, resulting in poor adaptability.

[0084] Obviously, the above embodiments are merely examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A film slitting mechanism, characterized in that, include: Bracket (1); A rotating shaft (2) is rotatably arranged on the bracket (1) in a horizontal direction; a plurality of groups of cutter assemblies are arranged on the rotating shaft (2) at intervals along its axial direction, and the cutter assemblies are slidably matched with the rotating shaft (2) along the axial direction of the rotating shaft (2); wherein a scale (3) is arranged on the rotating shaft (2) along its axial direction; A driving motor (4) is arranged on the bracket (1), and an output shaft of the driving motor (4) is drivingly connected to the rotating shaft (2), and is suitable for driving the rotating shaft (2) to rotate so as to drive the cutting blade assembly to cut the film; A support (15), wherein the support (1) is slidably connected in the support (15) along a vertical direction; a lifting and adjusting component is provided on the support (15), and an adjusting end of the lifting and adjusting component is connected to the support (1), and is suitable for driving the support (1) to rise or fall so as to adjust the distance between the cutter assembly and the pressure roller (16).

2. The film slitting mechanism according to claim 1, characterized in that, The cutter assembly comprises a cutter seat (5) and a ring cutter (6), wherein the ring cutter (6) is sleeved on the cutter seat (5); the cutter seat (5) is slidably sleeved on the rotating shaft (2), and a fastening screw (7) is passed through the circumference of the cutter seat (5), which is suitable for being fixed to the rotating shaft (2) by means of the fastening screw (7).

3. The film slitting mechanism according to claim 2, wherein, An annular mounting portion (8) is provided on the circumferential side of the knife seat (5), the annular knife (6) is screw-connected to the annular mounting portion (8), and a gasket (9) is provided on the side of the annular knife (6) facing away from the annular mounting portion (8).

4. The film slitting mechanism according to claim 1, characterized in that, A first synchronous wheel (10) is sleeved on one end of the rotating shaft (2); the driving motor (4) is located below the rotating shaft (2); an output end of the driving motor (4) is connected to a second synchronous wheel (11) corresponding to the first synchronous wheel (10); and the second synchronous wheel (11) is connected to the first synchronous wheel (10) via a synchronous belt (12); And / or, the two ends of the rotating shaft (2) are rotatably connected to the bracket (1) via bearings (13); both ends of the rotating shaft (2) extend out of the bearings (13), and the two ends of the rotating shaft (2) are connected to first limiting members (14), and the two first limiting members (14) are suitable for limiting the movement of the rotating shaft (2) along its axial direction.

5. The film slitting mechanism according to claim 1, characterized in that, The lifting and lowering adjustment component comprises a mounting plate (17), a wedge block (18) and a driving component; the mounting plate (17) is fixedly connected to the support (15); a first guide rail (19) is provided on the mounting plate (17) in a horizontal direction, the wedge block (18) is slidably connected to the first guide rail (19) via a first slider (20), and the inclined surface of the wedge block (18) abuts against the bottom peripheral side of the bracket (1); the driving component is arranged on the mounting plate (17), and the output end of the driving component is drivingly connected to the wedge block (18), and is suitable for driving the wedge block (18) to slide on the mounting plate (17).

6. The film slitting mechanism according to claim 5, characterized in that The driving assembly comprises a servo motor (21) and a screw rod (22); the servo motor (21) is arranged on the mounting plate (17); the output shaft of the servo motor (21) is drivingly connected to the screw rod (22); the axial direction of the screw rod (22) is arranged along the sliding direction of the wedge block (18), and the screw rod (22) is connected to the wedge block (18) through a nut seat (23).

7. The film slitting mechanism according to claim 6, characterized in that, The mounting plate (17) is provided with a second limiting member, which is located at an end of the screw rod (22) away from the servo motor (21) and is suitable for abutting against the nut seat (23) for limiting.

8. The film slitting mechanism according to claim 6, wherein, A plurality of photoelectric sensors (24) are arranged on the mounting plate (17) at intervals along the axial direction of the screw rod (22); the plurality of photoelectric sensors (24) are located on the side of the screw rod (22) away from the wedge block (18); a sensor sensing sheet (25) for cooperating with the photoelectric sensor (24) is arranged on the nut seat (23); and the photoelectric sensor (24) is communicatively connected with the servo motor (21).

9. The film slitting mechanism according to claim 5, characterized in that, The support (15) is provided with a displacement sensor (26), the detection end of the displacement sensor (26) is directed toward the bracket (1) in a vertical direction, and is suitable for detecting the adjustment distance of the bracket (1), and the displacement sensor (26) is communicatively connected with the driving component; And / or, both side walls inside the support (15) are provided with second guide rails (27) in the vertical direction, and both ends of the bracket (1) are slidably connected to the second guide rails (27) via second sliders (28); And / or, a third slider (29) is provided at both ends of the support (15), the third slider (29) is slidably connected to a third guide rail (30), and the third guide rail (30) is suitable for being fixedly connected to an external device; wherein the sliding direction of the third guide rail (30) is consistent with the adjustment direction of the pressure roller (16); And / or, the lifting and adjusting components are provided in two groups, and the two groups of the lifting and adjusting components are arranged on the support (15) at intervals along the length direction of the rotating shaft (2); And / or, the bottom of the bracket (1) abuts against the wedge block (18) via a cylindrical ball slider (31).

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