Film cutting mechanism and film edge cutting device

Abstract

The utility model relates to the technical field of diaphragm preparation, in particular to a thin film cutting mechanism and a thin film trimming device. The blade locking assembly is arranged in the containing groove, and the blade locking assembly is configured to be capable of rotating by a preset angle relative to the mounting base every time; the first end of the pull rod movably penetrates through the mounting base and is fixedly connected with the blade locking assembly, and the pull rod can drive the blade locking assembly to rotate; and the cutter is fixedly installed on the blade locking assembly, the cutter is provided with a plurality of cutter angles, and the blade locking assembly can drive the cutter to rotate so as to switch different cutter angles to stretch out of the containing groove. The cutter angle is convenient to replace, the operation complexity is reduced, and potential safety hazards are eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to diaphragm preparation technical field especially relates to a film cutting mechanism and film trimming device. BACKGROUND

[0002] In the preparation process of the film, the edge part of the film is usually cut off by the film trimming device before winding, so as to improve the neatness of winding and the yield of the film. The main cutter of the film trimming device needs to cut continuously during continuous operation. In order to avoid the wear of the cutter corner of the main cutter, the cutter corner needs to be replaced about once every two weeks. At present, the main cutter mostly uses a four-corner blade, each cutter corner can be used, and the cutter corner is replaced when the use time reaches. When the blade needs to replace the cutter corner for normal cutting, the standby cutter is used for cutting first, the main cutter is pulled out, the screw is disassembled and replaced, and then the main cutter can be used normally. By using the above-mentioned mode, the operation is complicated, and the frequent disassembly increases the safety hazard.

[0003] Therefore, a film cutting mechanism and film trimming device are needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a film cutting mechanism and film trimming device, which can conveniently replace the cutting corner, reduce the complexity of operation and eliminate the safety hazard.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The film cutting mechanism comprises:

[0007] The mounting seat is provided with a containing groove;

[0008] The blade locking assembly is arranged in the containing groove, and the blade locking assembly is configured to rotate a preset angle relative to the mounting seat each time;

[0009] The first end of the pull rod is movably arranged in the mounting seat and fixedly connected with the blade locking assembly, and the pull rod can drive the blade locking assembly to rotate;

[0010] The cutter is fixedly installed on the blade locking assembly, the cutter has a plurality of cutting corners, and the blade locking assembly can drive the cutter to rotate to switch different cutting corners to extend out of the containing groove.

[0011] In some embodiments, the mounting base comprises a first mounting base and a second mounting base connected detachably, the first mounting base is provided with a clamping groove on one side facing the second mounting base, the second mounting base is provided with the accommodating groove on one side facing the first mounting base, the blade locking assembly is partially inserted into the clamping groove on one side facing the first mounting base, and the blade locking assembly is selectively disengaged from the clamping groove to switch different cutting blade angles extending out of the accommodating groove.

[0012] In some embodiments, an elastic member is further included, which is arranged between the blade locking assembly and the second mounting base, and is in a compressed state to insert the blade locking assembly into the clamping groove on one side facing the first mounting base.

[0013] In some embodiments, the blade locking assembly comprises a first fixed block, a second fixed block, and a locking member, the first fixed block is arranged at the first end of the pull rod, the second fixed block is partially inserted into the clamping groove on one side away from the first fixed block, the locking member is connected to the first fixed block through the second fixed block, and the cutting knife is arranged between the first fixed block and the second fixed block.

[0014] In some embodiments, the clamping groove is a regular polygon, the number of edges of the regular polygon is the same as the number of cutting blade angles, one end of the second fixed block away from the first fixed block has a regular polygon protrusion matching the shape of the clamping groove, the regular polygon protrusion can be inserted into the clamping groove to fix the blade locking assembly relative to the mounting base, and pulling the pull rod can make the regular polygon protrusion disengage from the clamping groove to enable the blade locking assembly to rotate relative to the mounting base.

[0015] In some embodiments, one end of the regular polygon protrusion away from the second fixed block is provided with a limiting protrusion, the limiting protrusion is arranged through the clamping groove, and the outer diameter of the limiting protrusion is less than or equal to the diameter of the inscribed circle of the clamping groove.

[0016] In some embodiments, one end of the first fixed block facing the second fixed block is provided with a positioning protrusion, the cutting knife is provided with a first positioning hole, the second fixed block is provided with a second positioning hole, and the positioning protrusion is arranged through the first positioning hole and the second positioning hole in sequence to fix the cutting knife between the first fixed block and the second fixed block.

[0017] In some embodiments, a spring plunger is arranged on the first mounting seat, an end of the spring plunger is located in the accommodating groove, and a plurality of positioning grooves are arranged on one side of the first mounting seat at equal intervals, and the number of the positioning grooves is the same as the number of the cutting blade angles, each of the positioning grooves is matched with the spring plunger, and each of the positioning grooves corresponds to one of the cutting blade angles extending out of the accommodating groove.

[0018] The film cutting device comprises a cutting knife frame and the film cutting mechanism.

[0019] In some embodiments, a spare cutting knife is arranged on the sliding block and can slide relative to the sliding block to abut against or separate from the film.

[0020] The film cutting device has the following beneficial effects:

[0021] The film cutting mechanism comprises a mounting seat, a blade locking assembly arranged in the mounting seat, and a cutting knife fixedly arranged on the blade locking assembly, wherein the blade locking assembly is configured to rotate by a preset angle relative to the mounting seat each time, the first end of the pull rod is movably arranged in the mounting seat and is fixedly connected with the blade locking assembly, the pull rod can drive the blade locking assembly to rotate, the cutting knife has a plurality of cutting blade angles, and the blade locking assembly can drive the cutting knife to rotate to switch different cutting blade angles extending out of the accommodating groove.

[0022] The film cutting device comprises a cutting knife frame and the film cutting mechanism, the cutting knife frame is provided with two sliding blocks, and each of the sliding blocks is provided with one film cutting mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0024] Fig. 1 is an assembly drawing of the film cutting mechanism of the present application.

[0025] Fig. 2 is an exploded view of the film cutting mechanism of the utility model;

[0026] Fig. 3 is a cutter holder schematic view of the film edge cutting device of the utility model.

[0027] In the drawings:

[0028] 1, first mounting seat; 11, clamping groove; 12, second connecting bolt; 2, second mounting seat; 21, first connecting bolt; 3, blade locking assembly; 31, first fixed block; 311, positioning protrusion; 32, second fixed block; 321, regular polygon protrusion; 322, limiting protrusion; 33, locking piece; 4, pull rod; 41, screw head; 5, elastic piece; 6, cutter; 61, first positioning hole; 7, spring plunger; 8, cutter holder; 81, sliding block; 82, locking piece. DETAILED DESCRIPTION

[0029] Before any embodiments of this application are explained in detail, it is to be understood that this application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0030] In this application, the terms "including", "containing", "having" or any other similar words are intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0031] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, direct connection refers to the connection of two parts or components without the need for an intermediate part, and indirect connection refers to the connection of two parts or components with at least one intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0032] In this application, those skilled in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it is also understood in the context that when referring to an element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below, etc.

[0034] In the process of cutting the film with the cutting knife, in order to facilitate the replacement of the cutting knife angle, reduce the complexity of operation, eliminate the safety hazard, such as Figs. 1-3 As shown in the utility model discloses a film cutting mechanism. The film cutting mechanism comprises a mounting seat, a pull rod 4, a blade locking assembly 3 and a cutting knife 6.

[0035] The mounting seat is provided with a receiving groove. The blade locking assembly 3 is arranged in the receiving groove, and the blade locking assembly 3 is configured to rotate a preset angle relative to the mounting seat each time. The first end of the pull rod 4 is movably arranged in the mounting seat and fixedly connected with the blade locking assembly 3, and the pull rod 4 can drive the blade locking assembly 3 to rotate. The cutting knife 6 is fixedly installed on the blade locking assembly 3, and the cutting knife 6 has a plurality of cutting knife angles. The blade locking assembly 3 can drive the cutting knife 6 to rotate to switch different cutting knife angles to extend out of the receiving groove.

[0036] When it is necessary to switch the cutting knife angle of the cutting knife 6, the blade locking assembly 3 is driven to rotate by the pull rod 4, so that different cutting knife angles extend out of the receiving groove. By the above-mentioned mode, the cutting knife angle can be replaced conveniently, the complexity of operation is reduced, and the safety hazard is eliminated.

[0037] In some embodiments, the mounting base comprises a first mounting base 1 and a second mounting base 2 connected detachably, the first mounting base 1 is provided with a clamping groove 11 on the side facing the second mounting base 2, the second mounting base 2 is provided with a receiving groove on the side facing the first mounting base 1, and the blade locking assembly 3 is partially arranged in the clamping groove 11. The blade locking assembly 3 can be selectively pulled out of the clamping groove 11 to switch different cutting blade angles extending into the receiving groove. Specifically, the blade locking assembly 3 has a locking position fixed relative to the first mounting base 1 and an unlocking position rotating relative to the first mounting base 1, and the pull rod 4 can drive the blade locking assembly 3 to move axially relative to the clamping groove 11 to switch between the unlocking position and the locking position. When it is necessary to switch the cutting blade angle of the cutter 6, the pull rod 4 is pulled in a direction away from the first mounting base 1, the blade locking assembly 3 is switched from the locking position to the unlocking position, and then the pull rod 4 is rotated to drive the blade locking assembly 3 to rotate and switch to the next cutting blade angle of the cutter 6 to be used. The first mounting base 1 and the second mounting base 2 are connected by a plurality of first connecting bolts 21, and when it is necessary to replace the cutter 6, the plurality of first connecting bolts 21 are only needed to be removed to replace the cutter 6.

[0038] In some embodiments, a plurality of second connecting bolts 12 are arranged on the first mounting base 1, the second connecting bolts 12 extend out of the first mounting base 1 to be connected with the diaphragm cutting device, so that the film cutting mechanism can be fixed on the diaphragm cutting device.

[0039] In some embodiments, the film cutting device further comprises a resilient member 5 arranged between the blade locking assembly 3 and the second mounting base 2, the resilient member 5 is in a compressed state and can enable the blade locking assembly 3 to be arranged in the clamping groove 11 on the side facing the first mounting base 1. Specifically, in this embodiment, the resilient member 5 is a compression spring, and the resilient member 5 is arranged around the outer side of the pull rod 4. By arranging the compression spring, the blade locking assembly 3 can be in the locking position when cutting the film. When it is necessary to switch the cutting blade angle of the cutter 6, the pull rod 4 is pulled in a direction away from the first mounting base 1, the resilient member 5 is compressed, the blade locking assembly 3 is switched from the locking position to the unlocking position, and then the pull rod 4 is rotated to drive the blade locking assembly 3 to rotate and switch to the next cutting blade angle of the cutter 6 to be used. Finally, the pull rod 4 is released, and under the elastic restoring force of the resilient member 5, the blade locking assembly 3 is switched from the unlocking position to the locking position, so that the cutter 6 is fixed and can cut the film.

[0040] In some embodiments, the blade locking assembly 3 comprises a first fixed block 31, a second fixed block 32 and a locking piece 33, the first fixed block 31 is arranged at the first end of the pull rod 4, the second fixed block 32 is arranged in the clamping groove 11 from the part structure of the side of the first fixed block 31, the locking piece 33 is connected with the first fixed block 31 through the second fixed block 32, and the cutter 6 is clamped and fixed between the first fixed block 31 and the second fixed block 32. By arranging the first fixed block 31 and the second fixed block 32, the cutter 6 is clamped and fixed, and when the cutter 6 needs to be replaced, the locking piece 33 only needs to be disassembled, and the first fixed block 31 and the second fixed block 32 can be separated, and after the new cutter 6 is replaced, the second fixed block 32 is installed on the first fixed block 31 by using the locking piece 33. In this embodiment, the locking piece 33 is a bolt, a threaded hole is formed in the end of the first fixed block 31 facing the second fixed block 32, and the threaded hole is threadedly connected with the locking piece 33, so that the first fixed block 31 and the second fixed block 32 can be easily disassembled and assembled.

[0041] In some embodiments, the clamping groove 11 is a regular polygon, the number of edges of the regular polygon is the same as the number of cutting blade angles, and the end of the second fixed block 32 away from the first fixed block 31 has a regular polygon protrusion 321 matched with the shape of the clamping groove 11. The regular polygon protrusion 321 can be arranged in the clamping groove 11 to relatively fix the blade locking assembly 3 and the mounting seat, and the regular polygon protrusion 321 can be pulled out of the clamping groove 11 to make the blade locking assembly 3 rotate relative to the mounting seat. By matching the regular polygon protrusion 321 with the clamping groove 11, when the regular polygon protrusion 321 is located in the clamping groove 11, the clamping groove 11 limits the regular polygon protrusion 321, so that the blade locking assembly 3 cannot rotate, and when the pull rod 4 is pulled, the pull rod 4 drives the blade locking assembly 3, so that the regular polygon protrusion 321 is separated from the clamping groove 11, and the blade locking assembly 3 can rotate. In this embodiment, the cutter 6 is a square blade, and the clamping groove 11 is also a square. In other embodiments, the cutter 6 can be designed as a regular triangle, a regular pentagon, a regular hexagon, etc., and the shape of the clamping groove 11 is matched with the shape of the cutter 6, which is not limited here. It should be noted that the cutting blade angle of the cutter 6 is the angle of the cutter 6.

[0042] In some embodiments, the end of the regular polygon protrusion 321 away from the second fixed block 32 is provided with a limiting protrusion 322, the limiting protrusion 322 is arranged in the clamping groove 11, and the outer diameter of the limiting protrusion 322 is less than or equal to the diameter of the inscribed circle in the clamping groove 11. Specifically, in this embodiment, the limiting protrusion 322 is in a cylindrical shape, and the limiting protrusion 322 is tangent to the groove wall of the clamping groove 11. When the regular polygon protrusion 321 is separated from the clamping groove 11, the limiting protrusion 322 is still in the clamping groove 11. By arranging the limiting protrusion 322, the displacement of the blade locking assembly 3 driving the cutter 6 to rotate can be avoided.

[0043] In some embodiments, a positioning protrusion 311 is fixedly provided at one end of the first fixing block 31 facing the second fixing block 32. The cutter 6 has a first positioning hole 61, and the second fixing block 32 has a second positioning hole. The positioning protrusion 311 passes through the first positioning hole 61 and the second positioning hole in sequence to clamp and fix the cutter 6 between the first fixing block 31 and the second fixing block 32. In this embodiment, both the positioning protrusion 311 and the first positioning hole 61 are square. By cooperating with the first positioning hole 61, the cutter 6 can be stably fixed on the first fixing block 31. In other embodiments, the first positioning hole 61 and the positioning protrusion 311 can also be designed as triangles, pentagons, hexagons, etc., without much limitation. By cooperating with the second positioning hole, the cutter 6 can be stably clamped. In this embodiment, the positioning protrusion 311 is designed as a square, and the second positioning hole is a square hole, which can prevent the second fixing block 32 from rotating relative to the first fixing block 31. When the locking member 33 is used to connect the first fixing block 31 and the second fixing block 32, the locking member 33 passes through the limiting protrusion 322, the regular polygonal protrusion 321 and the positioning protrusion 311.

[0044] In some embodiments, a spring plunger 7 is provided on the first mounting base 1, with its end located in a receiving groove. A second fixing block 32 has equally spaced positioning grooves on one side facing the first mounting base 1, the number of which is the same as the number of cutting blade angles. Each positioning groove, when matched with the spring plunger 7, corresponds to a cutting blade angle extending out of the receiving groove. In this embodiment, since the cutter 6 has four cutting blade angles, four positioning grooves are provided on the second fixing block 32, with adjacent positioning grooves spaced 90° apart. When the cutting blade angle is changed, the spring plunger 7 engages with the positioning groove, thus confirming that the cutting blade angle change is complete. In other embodiments, the cutter 6 can be designed as hexagonal or octagonal; similarly, the number of positioning grooves can be six or eight, without further limitation.

[0045] In some embodiments, a screw head 41 is fixedly provided at one end of the pull rod 4 that extends relative to the second mounting base 2. By providing the screw head 41, it is easy to pull and rotate the pull rod 4, thereby completing the switching of the cutting blade angle.

[0046] like Fig. 3 As shown, this embodiment also provides a film edge trimming device, which includes a cutter holder and the film cutting mechanism described above. Two sliders 81 are slidably arranged on the cutter holder, and each slider 81 is equipped with a film cutting mechanism. In order to facilitate the adjustment of the distance between the two film cutting mechanisms as needed, a scale line is provided on the cutter holder. The distance between the film cutting mechanisms can be accurately determined as needed through the scale line, thereby facilitating the effective removal of film edge material in the subsequent process.

[0047] In some embodiments, in order to prevent the slider 81 from moving after determining the position on the cutter holder, a locking piece 82 is threadedly connected on the slider 81, and the locking piece 82 can abut against the cutter holder, thereby locking the position of the slider 81 on the cutter holder.

[0048] In some embodiments, a spare cutter is arranged on the slider 81 to slide, and the spare cutter can slide relative to the slider 81 to abut against or separate from the film. By arranging the spare cutter, when the cutter 6 is replaced, the spare cutter is used for cutting work, and the film cutting can still be performed, thereby ensuring the efficiency of the film cutting.

[0049] In some embodiments, three first mounting holes are arranged on the spare cutter 6 in the vertical direction, and two second mounting holes are arranged on the slider 81. The position of the spare cutter 6 can be adjusted through the cooperation of the first mounting holes and the second mounting holes, thereby realizing the abutment or separation of the spare cutter 6 and the film.

[0050] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A film cutting mechanism, characterized by, The utility model relates to a cutting tool, including: The mounting seat is equipped with the accommodation groove on the mounting seat; Blade locking assembly (3) is equipped in the accommodation groove, blade locking assembly (3) is configured as every time can rotate the preset angle relative to the mounting seat; Pull rod (4), the first end of pull rod (4) is movably arranged in the mounting seat and is fixedly connected with blade locking assembly (3), and pull rod (4) can drive blade locking assembly (3) to rotate; Cutter (6) is fixedly installed on blade locking assembly (3), cutter (6) has multiple cutting corners, and blade locking assembly (3) can drive cutter (6) to rotate to switch different cutting corners to extend the accommodation groove.

2. The film cutting mechanism of claim 1, wherein, The mounting seat includes detachably connected first mounting seat (1) and second mounting seat (2), one side of first mounting seat (1) towards second mounting seat (2) is equipped with clamping groove (11), one side of second mounting seat (2) towards first mounting seat (1) is equipped with the accommodation groove, part structure of blade locking assembly (3) is inserted in clamping groove (11), one side of blade locking assembly (3) towards first mounting seat (1) can selectively come out of clamping groove (11) to switch different cutting corners to extend the accommodation groove.

3. The film cutting mechanism of claim 2, wherein, It further includes elastic member (5), which is arranged between the blade locking assembly (3) and the second mounting seat (2), and the elastic member (5) is in a compressed state, so that the blade locking assembly (3) is inserted into the clamping groove (11) on one side towards the first mounting seat (1).

4. The film cutting mechanism of claim 2, wherein The blade locking assembly (3) includes a first fixed block (31), a second fixed block (32), and a locking member (33). The first fixed block (31) is arranged at the first end of the pull rod (4). Part of the second fixed block (32) away from the first fixed block (31) is inserted into the clamping groove (11). The locking member (33) is connected with the first fixed block (31) through the second fixed block (32). The cutter (6) is clamped and fixed between the first fixed block (31) and the second fixed block (32).

5. The film cutting mechanism of claim 4, wherein, The clamping groove (11) is a regular polygon, the number of sides of the regular polygon is the same as the number of cutting corners, and the second fixed block (32) has a regular polygon protrusion (321) matching the shape of the clamping groove (11) at one end away from the first fixed block (31). The regular polygon protrusion (321) can be inserted into the clamping groove (11) to fix the blade locking assembly (3) relative to the mounting seat. Pulling the pull rod (4) can make the regular polygon protrusion (321) come out of the clamping groove (11), so that the blade locking assembly (3) can rotate relative to the mounting seat.

6. The film cutting mechanism of claim 5, wherein, The regular polygon protrusion (321) is provided with a limiting protrusion (322) at one end away from the second fixed block (32), the limiting protrusion (322) is arranged in the clamping groove (11), and the outer diameter of the limiting protrusion is less than or equal to the diameter of the inscribed circle of the clamping groove (11).

7. The film cutting mechanism of claim 4, wherein The first fixed block (31) is provided with a positioning protrusion (311) at one end thereof facing the second fixed block (32), the cutter (6) is provided with a first positioning hole (61), the second fixed block (32) is provided with a second positioning hole, and the positioning protrusion (311) is sequentially arranged in the first positioning hole (61) and the second positioning hole, so as to clamp and fix the cutter (6) between the first fixed block (31) and the second fixed block (32).

8. The film cutting mechanism of claim 4, wherein, The first mounting seat (1) is provided with a spring plunger (7), the end of the spring plunger (7) is located in the accommodating groove, and the second fixed block (32) is provided with a plurality of positioning grooves at the side thereof facing the first mounting seat (1) and spaced at equal intervals, the number of the positioning grooves is same as the number of the cutting knife angles, and each positioning groove is matched with the spring plunger (7) to correspond to one cutting knife angle extending out of the accommodating groove.

9. A film trimming device characterized by, The film cutting mechanism comprises a cutter frame (8) and the film cutting mechanism according to any one of claims 1-8, and two sliding blocks (81) are slidably arranged on the cutter frame (8), and each sliding block (81) is provided with one film cutting mechanism.

10. The film trim device of claim 9, wherein, A standby cutter is slidably arranged on the sliding block (81), and the standby cutter can slide relative to the sliding block (81) to abut against or separate from the film.

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