Lower cutter mechanism and splitting machine

Abstract

The utility model discloses a lower cutter mechanism and a splitting machine. The lower cutter mechanism comprises a dead knife roller and a lower cutter. The bottom knife roller is sleeved with the lower cutter, the lower cutter comprises at least two sub-cutters, the at least two sub-cutters are sequentially arranged along the periphery of the bottom knife roller, and each sub-cutter is detachably attracted and fixed to the bottom knife roller through a first magnetic piece. The lower cutter replacing device can solve the problems that in the prior art, the lower cutter replacing process is tedious in operation, and consumed time is long.

Description

Technical Field

[0001] The present application relates to the technical field of slitting machines, and in particular to a lower cutting knife mechanism and a slitting machine. Background Art

[0002] The slitting machine is a device for cutting and winding film. The film is wound around the reel by the rotation of the reel to wind the film. When winding, the cutter remains fixed to cut the film into a predetermined width.

[0003] The slitting machine is usually composed of a frame, an unwinding mechanism, a slitting mechanism, a rewinding mechanism, a detection device and a control system. In actual production and use, the staff needs to adjust the distance between the cutters on the split shaft according to the size requirements of the product, and then slitting the material.

[0004] The existing slitting mechanism includes an upper cutter assembly and a lower cutter assembly. Among them, the lower cutter assembly includes a bottom cutter roller and a knife sleeve and a lower cutter coaxially connected to the bottom cutter roller, and then a nut is used to thread the bottom cutter roller to achieve locking of the knife sleeve and the lower cutter. However, due to the limited service life of the lower cutter, when the lower cutter needs to be replaced, the bottom cutter roller must be removed from the frame first, and then the knife sleeve must be removed from the bottom cutter roller, and then the lower cutter must be removed. The entire replacement process is cumbersome to operate, and there are many structures that need to be disassembled, which is labor-intensive, time-consuming, and has high labor costs, which seriously affects the production efficiency of the slitting machine. Utility Model Content

[0005] The main purpose of the present application is to provide a lower cutter mechanism and a slitting machine to solve the problem that the lower cutter replacement process in the prior art is complicated and time-consuming.

[0006] According to one aspect of the present application, a lower cutting knife mechanism is provided, comprising:

[0007] bottom knife roller;

[0008] The lower cutter is sleeved on the bottom cutter roller, and the lower cutter includes at least two sub-cutters, and the at least two sub-cutters are arranged in sequence along the outer circumference of the bottom cutter roller, and each of the sub-cutters is detachably adsorbed and fixed on the bottom cutter roller through a first magnetic part.

[0009] Furthermore, a first arc-shaped groove is provided on a side of the sub-cutter close to the bottom knife roller, and the first magnetic member is a first arc-shaped block, and the first arc-shaped block is embedded in the first arc-shaped groove.

[0010] Furthermore, each of the sub-cutters is provided with a cutting edge on a side facing away from the bottom knife roller, the cutting edge extends along the circumferential direction of the bottom knife roller, and the cutting edges on each of the sub-cutters are interconnected.

[0011] Furthermore, the lower cutting knife mechanism also includes a knife sleeve, which is arranged on the bottom knife roller. The knife sleeve includes at least two sub-knife sleeves, and at least two sub-knife sleeves are arranged in sequence along the outer circumference of the bottom knife roller, and each sub-knife sleeve is detachably adsorbed and fixed on the bottom knife roller through a second magnetic part.

[0012] Furthermore, a second arc-shaped groove is provided on a side of the sub-knife sleeve close to the bottom knife roller, and the second magnetic member is a second arc-shaped block, and the second arc-shaped block is embedded in the second arc-shaped groove.

[0013] Furthermore, the lower cutting knives include a plurality of lower cutting knives, which are arranged on the bottom knife roller in sequence and at intervals along the axial direction of the bottom knife roller. Each lower cutting knife is provided with a plurality of knife sleeves on opposite sides along the axial direction of the bottom knife roller, and the plurality of knife sleeves can be selectively mounted on the bottom knife roller.

[0014] Furthermore, the first magnetic member and the second magnetic member both include magnets.

[0015] Furthermore, locking pieces are provided at opposite ends of the bottom knife roller along the axial direction of the bottom knife roller.

[0016] Furthermore, the locking member includes a locking nut.

[0017] On the other hand, the present application further provides a slitting machine, which includes the above-mentioned lower cutting knife mechanism, and the slitting machine also includes an upper cutting knife mechanism, and the upper cutting knife mechanism and the lower cutting knife mechanism cooperate with each other to slit the film.

[0018] Compared with the disassembly and assembly method of the lower cutter in the prior art, the lower cutter of the present application is composed of at least two detachable sub-cutters. When the lower cutter needs to be disassembled, it is only necessary to use the demagnetization part to demagnetize the first magnetic part, and then each sub-cutter and the first magnetic part can be disassembled to complete the disassembly of the lower cutter. Further, new sub-cutter can be replaced to form a new lower cutter, and then the new lower cutter sleeve can be set on the bottom knife roller through the new first magnetic part to complete the installation of the lower cutter. The whole process does not require disassembly of the bottom knife roller, knife sleeve and other components. Disassembly and installation are convenient, which greatly reduces the work difficulty, saves labor cost and time cost, and improves the work efficiency of the lower cutter mechanism to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1It is a structural schematic diagram of the lower cutting knife mechanism disclosed in the embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of the lower cutter disclosed in the embodiment of the present application;

[0022] Figure 3 A schematic diagram of the structure of the sub-cutter and the first magnetic member disclosed in the embodiment of the present application;

[0023] Figure 4 A schematic diagram of the structure of the sub-cutter and the first arc-shaped groove disclosed in an embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the structure of the knife sheath disclosed in the embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the knife sleeve and the second magnetic member disclosed in the embodiment of the present application;

[0026] Figure 7 This is a schematic structural diagram of the knife sleeve and the second arc-shaped groove disclosed in an embodiment of the present application.

[0027] The above drawings include the following reference numerals:

[0028] 10. bottom knife roller; 20. lower cutting knife; 21. sub-cutting knife; 211. first arc-shaped groove; 212. cutting knife edge; 30. first magnetic member; 40. knife sleeve; 41. sub-knife sleeve; 411. second arc-shaped groove; 50. second magnetic member. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0032] As mentioned in the background technology, in the prior art, when replacing the lower cutter, it is necessary to first remove the bottom cutter roller from the frame, then remove the knife sleeve from the bottom cutter roller, and then remove the lower cutter. The entire replacement process is relatively cumbersome, and there are many structures that need to be disassembled, which is labor-intensive, time-consuming, and has high labor costs. Therefore, in order to reduce the complexity of the lower cutter replacement process, the inventor of the present application has designed a new type of lower cutter mechanism, which will be described in detail below.

[0033] See also Figures 1 to 7 As shown, the present application provides a lower cutter mechanism, which includes a bottom knife roller 10 and a lower cutter 20 .

[0034] Among them, the lower cutter 20 is sleeved on the bottom knife roller 10, and the lower cutter 20 includes at least two sub-cutters 21. The at least two sub-cutters 21 are arranged in sequence along the outer circumference of the bottom knife roller 10, and each sub-cutter 21 is detachably adsorbed and fixed on the bottom knife roller 10 through the first magnetic part 30.

[0035] Since at least two sub-cutters 21 in this embodiment are sequentially arranged along the outer periphery of the bottom knife roller 10, and each sub-cutter 21 is detachably adsorbed and fixed on the bottom knife roller 10 through the first magnetic member 30, when it is necessary to disassemble the bottom knife 20, it is only necessary to demagnetize the first magnetic member 30 through the demagnetizing member, so that each sub-cutter 21 and the first magnetic member 30 can be disassembled, and at least two new sub-cutters 21 can be replaced to form a new bottom knife 20; when it is necessary to install the bottom knife 20, it is only necessary to use the first magnetic member 30 to adsorb and fix each sub-cutter 21 on the outer periphery of the bottom knife roller 10 and sequentially arrange them along the outer periphery of the bottom knife roller 10 to form a new bottom knife 20. Such an arrangement has a simple structure, is convenient for disassembly and assembly of the bottom knife 20, and saves the disassembly and assembly time of the bottom knife 20 to a certain extent.

[0036] That is to say, compared with the disassembly and assembly method of the lower cutter 20 in the prior art, the lower cutter 20 of the present application is composed of at least two detachable sub-cutters 21. When the lower cutter 20 needs to be disassembled, it is only necessary to use the demagnetization part to demagnetize the first magnetic part 30, and then each sub-cutter 21 and the first magnetic part 30 are disassembled to complete the disassembly of the lower cutter 20. Further, a new sub-cutter 21 can be replaced to form a new lower cutter 20, and then the new lower cutter 20 is sleeved on the bottom knife roller 10 through the new first magnetic part 30 to complete the installation of the lower cutter 20. The whole process does not require the disassembly of the bottom knife roller 10, the knife sleeve 40 and other components, and the disassembly and installation are convenient, which greatly reduces the work difficulty, saves labor costs and time costs, and improves the work efficiency of the lower cutter mechanism to a certain extent.

[0037] Optionally, the sub-cutter 21 in the present application may include two, three, four or more than four sub-cutter blades, which is not specifically limited in the present application and can be designed according to actual needs. Figure 2 The case where there are two sub-cutters 21 is shown.

[0038] Specifically, the demagnetizing member in the present application is a demagnetizing sheet. The demagnetizing sheet has the advantages of light weight, thin thickness, good demagnetization performance, etc. It can demagnetize the first magnetic member 30 and the second magnetic member 50, so as to facilitate the removal of the lower cutter 20 and the knife sleeve 40 adsorbed and fixed on the bottom knife roller 10. When the lower cutter 20 needs to be removed, it is only necessary to use the demagnetizing sheet to insert it between the first magnetic member 30 and the bottom knife roller 10, and to insert it close to one side of each sub-cutter 21 and perpendicular to the direction of the bottom knife roller 10; when the knife sleeve 40 needs to be removed, it is also only necessary to use the demagnetizing sheet to insert it between the second magnetic member 50 and the bottom knife roller 10, and to insert it close to one side of each sub-knife sleeve 41 and perpendicular to the direction of the bottom knife roller 10. Such a setting is easy to operate and easy to disassemble, which not only reduces the difficulty of work, but also saves labor costs and time costs, and improves the working efficiency of the lower cutter mechanism.

[0039] Further, see Figure 3 to Figure 4As shown, the sub-cutter 21 in this embodiment is provided with a first arc-shaped groove 211 on one side close to the bottom knife roller 10, and the first magnetic member 30 is a first arc-shaped block, which is embedded in the first arc-shaped groove 211. In this way, each sub-cutter 21 can be mutually adsorbed and fixed on the outer periphery of the bottom knife roller 10 by the attraction of each first magnetic member 30 and arranged in sequence along the outer periphery of the bottom knife roller 10. It can be understood that the first arc-shaped groove 211 can provide a holding space for the first magnetic member 30 and can limit the position of the first magnetic member 30; since the bottom knife roller 10 is a cylindrical structure, the present application provides a first arc-shaped groove 211 on the sub-cutter 21, and sets the first magnetic member 30 as a first arc-shaped block, which can be adapted to the bottom knife roller 10, thereby increasing the fit between the sub-cutter 21 and the bottom knife roller 10.

[0040] Further, see Figure 3 to Figure 4 As shown, each sub-cutter 21 in this embodiment is provided with a cutting edge 212 on the side away from the bottom knife roller 10, and the cutting edge 212 extends along the circumferential direction of the bottom knife roller 10, and the cutting edges 212 on each sub-cutter 21 are interconnected. Specifically, the cutting edge 212 is a knife groove that cooperates with the upper cutter. In other words, the lower cutter 20 in this application is only provided with a cutting edge 212, but no blade is provided. When the film needs to be cut, it is also necessary to cooperate with the upper cutter on another roller, and the upper cutter has a blade. During the film cutting process, the position of the upper cutter on the other roller is consistent with the position of the lower cutter 20 on the bottom knife roller 10, so that the blade of the upper cutter coincides with the cutting edge 212 of the lower cutter 20 (that is, the upper cutter falls into the cutting edge 212 during cutting), thereby completing the cutting of the film, and then making the width of the film after cutting meet the predetermined width.

[0041] Further, see Figure 1 as well as Figure 5 As shown, the lower cutter mechanism in this embodiment also includes a cutter sleeve 40, which is sleeved on the bottom cutter roller 10. The cutter sleeve 40 includes at least two sub-cutter sleeves 41, which are sequentially arranged along the outer circumference of the bottom cutter roller 10, and each sub-cutter sleeve 41 is detachably adsorbed and fixed on the bottom cutter roller 10 through a second magnetic member 50. Specifically, when it is necessary to disassemble the cutter sleeve 40, it is only necessary to demagnetize the second magnetic member 50 using a demagnetizing member, and then disassemble each sub-cutter sleeve 41 and the second magnetic member 50 to complete the disassembly of the cutter sleeve 40; when it is necessary to install the cutter sleeve 40, it is only necessary to sleeve the sub-cutter sleeve 41 on the bottom cutter roller 10 through the second magnetic member 50 to complete the installation of the cutter sleeve 40. The whole process does not require the bottom cutter roller 10 to be disassembled, and the disassembly and installation are convenient, which greatly reduces the difficulty of work, saves labor costs and time costs, and improves the working efficiency of the lower cutter mechanism to a certain extent.

[0042] Further, see Figure 6 to Figure 7As shown, the sub-knife sleeve 41 in this embodiment is provided with a second arc groove 411 on one side close to the bottom knife roller 10, and the second magnetic member 50 is a second arc block, which is embedded in the second arc groove 411. In this way, each sub-knife sleeve 41 can be fixed on the outer periphery of the bottom knife roller 10 by adsorption of each second magnetic member 50 and arranged in sequence along the outer periphery of the bottom knife roller 10. It can be understood that the second arc groove 411 can provide a holding space for the second magnetic member 50 and can limit the position of the second magnetic member 50; since the bottom knife roller 10 is a cylindrical structure, the present application provides a second arc groove 411 on the sub-knife sleeve 41, and sets the second magnetic member 50 as a second arc block, which can be adapted to the bottom knife roller 10, and increase the fit between the sub-knife sleeve 41 and the bottom knife roller 10.

[0043] Further, see Figure 1 As shown, the lower cutters 20 in this embodiment include a plurality of them, and the plurality of lower cutters 20 are sequentially arranged on the bottom cutter roller 10 at intervals along the axial direction of the bottom cutter roller 10, and each lower cutter 20 is provided with a plurality of knife sleeves 40 on opposite sides along the axial direction of the bottom cutter roller 10, and the plurality of knife sleeves 40 can be selectively sleeved on the bottom cutter roller 10. It can be understood that the present application is provided with a plurality of knife sleeves 40 on both sides of each lower cutter 20, and the plurality of knife sleeves 40 can play a role in adjusting the spacing between two adjacent lower cutters 20, so as to adjust the slitting width of the film. Specifically, when it is necessary to adjust the spacing between two adjacent lower cutters 20, it is only necessary to increase or decrease the number of knife sleeves 40 according to the processing requirements to adjust the spacing between the two adjacent lower cutters 20.

[0044] Optionally, the lower cutter 20 in the present application may include one, two, three, four or more than four, and the knife sleeve 40 may include one, two, three, four or more than four, which is not specifically limited in the present application and can be designed according to actual processing requirements. Figure 1 The figure shows a situation where there are four lower cutting knives 20 and thirteen knife sleeves 40 between two adjacent lower cutting knives 20 .

[0045] Specifically, the first magnetic part 30 and the second magnetic part 50 in this embodiment both include magnets. Of course, in other embodiments of the present application, the first magnetic part 30 and the second magnetic part 50 may also be other structures with mutual attraction. As long as they are other deformation methods based on the concept of the present application, they are all within the protection scope of the present application.

[0046] Furthermore, locking members are provided at opposite ends of the bottom knife roller 10 along the axis direction of the bottom knife roller 10 (the locking members are not shown in the drawings). After the lower cutter mechanism in this embodiment is assembled, each lower cutter 20 is provided with a plurality of knife sleeves 40 at opposite sides along the axis direction of the bottom knife roller 10. When the locking members are installed at opposite ends of the bottom knife roller 10, the locking members can limit and fix the knife sleeves 40, thereby limiting and fixing the lower cutter 20, effectively preventing the knife sleeves 40 and the lower cutter 20 from being displaced during operation, and ensuring the accuracy of the lower cutter mechanism during slitting.

[0047] Specifically, the locking member in this embodiment includes a locking nut. Along the axial direction of the bottom knife roller 10, the present application provides threaded portions at opposite ends of the bottom knife roller 10, and the locking nut is locked at the threaded portion to limit and fix the knife sleeve 40. In other words, the locking nut in this embodiment is sleeved on the bottom knife roller 10 through a threaded connection.

[0048] Specifically, the disassembly and assembly steps of the lower cutter mechanism of the present application are as follows:

[0049] Before installation, the two first magnetic members 30 are respectively embedded in the first arc grooves 211 of the two sub-cutters 21, and the two second magnetic members 50 are respectively embedded in the second arc grooves 411 of the two sub-knife sleeves 41. During installation, firstly, the two sub-cutters 21 are adsorbed and fixed on the bottom knife roller 10 through the mutual attraction of the first magnetic members 30 and are arranged in sequence along the outer circumference of the bottom knife roller 10 to form a complete lower cutter 20; then, a plurality of knife sleeves 40 are arranged on opposite sides of the lower cutter 20 along the axis direction of the bottom knife roller 10, and the knife sleeves 40 are adsorbed and fixed on the bottom knife roller 10 through the mutual attraction of the second magnetic members 50 and are arranged in sequence along the outer circumference of the bottom knife roller 10 to form a complete knife sleeve 40; and then the locking nut is sleeved on the threaded portion of the bottom knife roller 10.

[0050] During disassembly, first loosen the locking nut, then use the demagnetizing sheet to demagnetize the first magnetic part 30 and the second magnetic part 50, and then the lower cutter 20 can be divided into two sub-cutters 21, and the knife sleeve 40 can be divided into two sub-knife sleeves 41. After that, they can be removed from the bottom knife roller 10. The entire disassembly process does not require disassembly of the bottom knife roller 10. Disassembly and installation are convenient, which greatly reduces the difficulty of work, saves labor costs and time costs, and improves the working efficiency of the lower cutter mechanism to a certain extent.

[0051] On the other hand, the embodiment of the present application further provides a slitting machine, which includes the above-mentioned lower cutting knife mechanism, and thus the slitting machine includes all the technical effects of the above-mentioned lower cutting knife mechanism. Since the technical effects of the lower cutting knife mechanism have been described in detail above, they will not be repeated here.

[0052] Furthermore, the slitting machine also includes an upper cutter mechanism, and the upper cutter mechanism cooperates with the lower cutter mechanism to cut the film. Since the lower cutter 20 in the lower cutter mechanism only has a cutting edge 212, and the upper cutter in the upper cutter mechanism has a blade, before the film needs to be cut, the position of the upper cutter needs to correspond to the position of the lower cutter 20, so that during the film cutting process, the cut of the film can be kept smooth, and at the same time, it can also ensure that the cut of the film will not be misaligned, so that the width of the film after cutting meets the predetermined width.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0055] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lower cutting knife mechanism, characterized in that: include: Bottom knife roller (10); A lower cutter (20), the lower cutter (20) being sleeved on the bottom cutter roller (10), the lower cutter (20) comprising at least two sub-cutters (21), the at least two sub-cutters (21) being arranged in sequence along the outer circumference of the bottom cutter roller (10), and each of the sub-cutters (21) being detachably adsorbed and fixed on the bottom cutter roller (10) via a first magnetic member (30).

2. The lower cutting blade mechanism according to claim 1, characterized in that: A first arc-shaped groove (211) is provided on one side of the sub-cutter (21) close to the bottom knife roller (10); the first magnetic member (30) is a first arc-shaped block, and the first arc-shaped block is embedded in the first arc-shaped groove (211).

3. The lower cutting blade mechanism according to any one of claims 1 to 2, characterized in that: A cutting opening (212) is provided on a side of each sub-cutter (21) facing away from the bottom knife roller (10); the cutting opening (212) extends along the circumferential direction of the bottom knife roller (10), and the cutting openings (212) on each sub-cutter (21) are interconnected.

4. The lower cutting blade mechanism according to claim 3, characterized in that: The lower cutting mechanism also includes a knife sleeve (40), the knife sleeve (40) is sleeved on the bottom knife roller (10), the knife sleeve (40) includes at least two sub-knife sleeves (41), at least two of the sub-knife sleeves (41) are arranged in sequence along the outer circumference of the bottom knife roller (10), and each of the sub-knife sleeves (41) is detachably adsorbed and fixed on the bottom knife roller (10) through a second magnetic member (50).

5. The lower cutting blade mechanism according to claim 4, characterized in that: A second arc-shaped groove (411) is provided on one side of the sub-knife sleeve (41) close to the bottom knife roller (10); the second magnetic member (50) is a second arc-shaped block, and the second arc-shaped block is embedded in the second arc-shaped groove (411).

6. The lower cutting blade mechanism according to claim 4, characterized in that: The lower cutting knives (20) include a plurality of lower cutting knives (20), which are arranged on the bottom knife roller (10) in sequence and at intervals along the axial direction of the bottom knife roller (10). Each lower cutting knives (20) is provided with a plurality of knife sleeves (40) on opposite sides along the axial direction of the bottom knife roller (10), and the plurality of knife sleeves (40) can be selectively sleeved on the bottom knife roller (10).

7. The lower cutting blade mechanism according to any one of claims 4 to 6, characterized in that: The first magnetic member (30) and the second magnetic member (50) both comprise magnets.

8. The lower cutting knife mechanism according to claim 1 or 2 or 4 or 5 or 6, characterized in that: Along the axial direction of the bottom knife roller (10), locking pieces are arranged at opposite ends of the bottom knife roller (10).

9. The lower cutting blade mechanism according to claim 8, characterized in that: The locking member includes a locking nut.

10. A slitting machine, characterized in that: The slitting machine comprises the lower cutting knife mechanism according to any one of claims 1 to 9, and the slitting machine further comprises an upper cutting knife mechanism, wherein the upper cutting knife mechanism cooperates with the lower cutting knife mechanism to slit the film.

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