Multi-section cutter structure for tissue breakpoints

Abstract

The invention relates to the technical field of tissue production, in particular to a multi-section cutter structure for tissue breakpoints, which comprises a plurality of groups of cutter assemblies uniformly distributed along the outer surface of a roller body in the circumferential direction, each group of cutter assembly comprises a fixing component, a cutter and a fixing piece, and the fixing component comprises a plurality of mounting grooves axially distributed along the outer surface of the roller body; the mounting groove is used for mounting the cutters and the fixing parts, the cutters are fixed on the mounting groove through the fixing parts, and the cutters are provided with saw-toothed blades so as to realize breakpoint cutting of tissues; a plurality of mounting grooves, cutters and fixing parts which are axially arranged are arranged on the roller body, an integrated cutter is replaced by a multi-section cutter, the cutting precision of tissues is improved while breakpoint cutting is completed, when one cutter is damaged, an operator only needs to disassemble and replace the cutter at the damaged part, the maintenance cost is reduced, and the production efficiency is improved. And the maintenance time of the damaged cutter is shortened, and the production efficiency of tissue production equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of paper towel production, and in particular to a multi-segment cutter structure for paper towel breakpoints. Background Art

[0002] Paper towels are common household items. To facilitate cutting according to usage, existing paper towel connections are typically made with dot-break technology. These dot-break tissues are typically produced using dot-break folding equipment. A rotating dot-break cutter continuously cuts dot-break lines through the raw paper towel strip. A folding mechanism then folds the dot-break strip. When the strip is folded to a desired thickness, the cutter cuts at the dot-break line, and the cut product is then transported.

[0003] Existing point-break cutters are typically mounted on the outer surface of a roller and extend along the roller's axis. As the roller rotates, the point-break cutters engage with ridges on the outer surface of another roller to achieve point-break cutting of the tissue paper. To achieve continuous cutting of tissue paper, the tissue paper point-break cutter is typically a one-piece structure, meaning the entire cutter is composed of a single metal plate. The cutter is typically long and thin, so to ensure both the rigidity of the cutter and the cutting accuracy of the tissue paper, the cutter typically needs to be secured to the roller body along its length using multiple bolts. This means that when the cutter needs to be replaced due to damage, maintenance personnel must remove and install all the bolts on the cutter, which undoubtedly prolongs equipment downtime and reduces the efficiency of the tissue paper production equipment. Furthermore, one-piece cutters often have higher manufacturing costs and are more difficult to process. They also occupy a larger storage space when stored as standby, making them less suitable for storage and transportation.

[0004] In addition, the serrated structure of the point-breaking cutter needs to withstand high compressive stress during cutting, and is prone to chipping or curling during high-speed production, resulting in failure of some breakpoints of the paper towel. Since the point-breaking cutter is an integrated structure, when the point-breaking cutter produces local wear, the entire point-breaking cutter needs to be replaced, which undoubtedly increases the maintenance cost of the paper towel production equipment.

[0005] Therefore, a new type of cutter structure is needed that can reduce the maintenance cost caused by cutter damage and shorten the time required for maintenance operations while ensuring the existing breakpoint cutting effect. Summary of the Invention

[0006] The multi-segment cutter structure for the paper towel breakpoint provided by the present invention can reduce the maintenance cost caused by cutter damage and shorten the time required for maintenance operations while ensuring the existing breakpoint cutting effect.

[0007] To solve the above problems, the multi-segment cutter structure for paper towel breakpoints provided by the present invention adopts the following technical solutions:

[0008] The multi-segment cutter structure of the paper towel breaking point includes multiple groups of cutter assemblies uniformly distributed along the circumferential direction of the outer surface of the roller body, each group of cutter assemblies includes a fixing component, a cutter and a fixing part, and the fixing component includes multiple mounting grooves arranged axially along the outer surface of the roller body, and the mounting grooves are used to install the cutters and fixing parts. The number of the cutters and fixing parts is multiple, and the cutter is fixed to the mounting groove through the fixing part. The cutter has a serrated blade to achieve breakpoint cutting of the paper towel.

[0009] The multi-segment cutter structure for the breakpoints of the paper towel of the present invention is provided with a plurality of axially arranged mounting grooves and cutters on the roller body, so that the cutter structure can complete the overall cutting of the paper towel under the cooperation of each cutter, and the breakpoints of the paper towel are formed by the serrated blades on the cutter, thereby realizing the breakpoint connection of the paper towel. Compared with the traditional integrated cutter, each cutter in the cutter structure can independently realize the breakpoint cutting of a unit length on the paper towel, and the unit cutting lengths of each cutter are combined to complete the overall breakpoint cutting of the paper towel, thereby realizing the breakpoint cutting effect of the original integrated cutter. In addition, the cutter structure reduces the volume of a single cutter, thereby reducing the difficulty of manufacturing the cutter and the cost of use. At the same time, the axial arrangement installation method can also reduce the spiral cutting angle required for the cutter to complete the paper towel cutting, thereby improving the cutting quality of the paper towel.

[0010] In addition, the multi-section cutter structure allows each cutter to be independently installed in each mounting groove of the roller body through a fixing part. When one of the cutters is damaged, the operator only needs to remove and replace the cutter at the damaged part without removing all the cutters. This can greatly shorten the repair time of the damaged cutter while reducing maintenance costs, thereby improving the overall production efficiency of the paper towel production equipment.

[0011] Furthermore, each of the mounting grooves is arranged obliquely relative to the axis of the roller body to achieve point contact between the cutter and the mating roller.

[0012] The beneficial effect is that by tilting each mounting groove relative to the axis of the roller body, the cutter installed in the mounting groove is also tilted relative to the axis of the roller body, so that during the rotation and cooperation of the roller body and other matching rollers, the cutter and the paper towel can always maintain point contact, which slows down the wear of the cutter surface when cutting the paper towel and extends the service life of the cutter.

[0013] Furthermore, the mounting groove includes a fixing member mounting groove and a cutter mounting groove, and the fixing member mounting groove and the cutter mounting groove are arranged in a stepped manner. The cutter mounting groove in the same mounting groove is located at the lower side of the corresponding fixing member mounting groove in the radial direction of the roller body.

[0014] Furthermore, the fixing member is a pressing block, which includes a fixing portion and a pressing portion, the fixing portion is used to fix the connection fixing member installation slot, and the pressing portion is used to press the cutter.

[0015] Its beneficial effect is that by using a pressure block to press the cutter into the cutter installation groove, the difficulty of cutter maintenance is reduced. At the same time, the operator can adjust the installation position of the cutter according to the actual production situation on site. Compared with the traditional bolt fixing method, the pressure block clamping method is more flexible and reduces the difficulty of debugging for operators.

[0016] Furthermore, the fixing member installation groove has a plurality of installation holes for inserting bolts, and the pressing block is fixedly installed on the pressing block installation groove by bolts.

[0017] Furthermore, the number of pressing blocks installed in each of the fixing member installation slots is not less than three and the pressing blocks are evenly distributed in the length direction of the fixing member installation slot to ensure the stability of the cutter fixed in the pressing block installation slot.

[0018] Its beneficial effect is that by arranging three pressure blocks on the fixing member mounting groove to fix the cutter, the middle part and the left and right ends of the cutter can be evenly stressed under the action of the pressure blocks, avoiding the situation where the cutter gradually deviates due to uneven force during long-term operation, thereby ensuring the cutting accuracy of paper towels.

[0019] Furthermore, the cutter includes a blade and a pressure plate. The blade is a rectangular plate structure. The blade includes a fixing end and a cutting end. The pressure plate is fixedly installed on the fixing end of the blade. The pressure plate is used to cooperate with the pressure block to press the blade to improve the stability of the cutter in the cutter mounting groove.

[0020] The beneficial effect is that by arranging a pressure plate on the surface of the blade, the pressure block can be assisted to press the blade, thereby increasing the friction between the cutter and the pressure block and ensuring the stability of the cutter in the cutter installation groove.

[0021] Furthermore, each of the mounting grooves is inclined from left to right toward the axis of the roller body in the radial direction of the roller body, so that the left end of the right cutter in the adjacent mounting groove is higher than the right end of the left cutter, and the length of the cutter is greater than the length of the cutter mounting groove, so that the left end of the cutter covers the upper side of the right end of the adjacent cutter on its left.

[0022] Its beneficial effect is that: by tilting the installation groove from left to right in the radial direction of the roller body toward the axis of the roller body, the left end of the cutter on the right side in the adjacent installation groove can cover the right end of the cutter on the left side in the radial direction of the roller body, avoiding the generation of gaps between adjacent cutters in the axial direction of the roller body. The cutter can complete continuous breakpoint cutting in the width direction of the paper towel while rotating with the roller body, preventing missed cutting on the paper towel and ensuring the breakpoint cutting quality of the paper towel.

[0023] Furthermore, the serrated blades of the covering parts of two adjacent cutters overlap with each other along the radial direction of the roller body, so as to avoid the paper towel from being broken incorrectly at the connecting position of the two adjacent cutters.

[0024] Furthermore, the fixing parts of the pressing blocks are provided with fixing holes for installing bolts, and the fixing holes are countersunk holes to prevent the bolts from affecting the cutting of the paper towels.

[0025] The beneficial effects of the multi-segment cutter structure for paper towel breakpoints provided by the present invention are:

[0026] 1. The multi-segment cutter structure for the breakpoints of paper towels of the present invention is provided with a plurality of axially arranged mounting grooves and cutters on the roller body, so that the cutter structure can complete the overall cutting of the paper towel with the cooperation of each cutter, and form the breakpoints of the paper towel through the serrated blades on the cutters, thereby realizing the breakpoint connection of the paper towel. Compared with the traditional integrated cutter, each cutter in the cutter structure can independently realize the breakpoint cutting of a unit length on the paper towel, and the unit cutting length of each cutter is combined to complete the overall breakpoint cutting of the paper towel, thereby realizing the breakpoint cutting effect of the original integrated cutter. In addition, the cutter structure reduces the volume of a single cutter, thereby reducing the difficulty of manufacturing the cutter and the cost of use. At the same time, the axial arrangement installation method can also reduce the spiral cutting angle required for the cutter to complete the paper towel cutting, thereby improving the cutting quality of the paper towel.

[0027] In addition, the multi-section cutter structure allows each cutter to be independently installed in each mounting groove of the roller body through a fixing part. When one of the cutters is damaged, the operator only needs to remove and replace the cutter at the damaged part without removing all the cutters. This can greatly shorten the repair time of the damaged cutter while reducing maintenance costs, thereby improving the overall production efficiency of the paper towel production equipment.

[0028] 2. By tilting each mounting groove relative to the axis of the roller body, the cutter installed in the mounting groove is also tilted relative to the axis of the roller body. As a result, during the rotation and cooperation of the roller body and other mating rollers, the cutter and the paper towel can always maintain point contact, which reduces the wear of the cutter surface when cutting paper towels and extends the service life of the cutter.

[0029] 3. By using a pressure block to press the cutter into the cutter installation groove, the difficulty of cutter maintenance is reduced. At the same time, the operator can adjust the installation position of the cutter according to the actual production conditions on site. Compared with the traditional bolt fixing method, the pressure block clamping method is more flexible and reduces the difficulty of debugging for operators.

[0030] 4. The cutter is fixed by arranging three pressure blocks on the fixing groove, so that the middle part and the left and right ends of the cutter can be evenly stressed under the action of the pressure blocks, avoiding the gradual deviation of the cutter due to uneven force during long-term operation, and ensuring the cutting accuracy of the paper towel.

[0031] 5. By setting a stainless steel pressure plate on the surface of the blade, the pressure block can be assisted to press the blade, thereby increasing the friction between the cutter and the pressure block and ensuring the stability of the cutter in the cutter installation groove.

[0032] 6. By tilting the mounting groove from left to right in the radial direction of the roller body toward the axis of the roller body, the left end of the cutter on the right side of the adjacent mounting groove can cover the right end of the cutter on the left side in the radial direction of the roller body, thereby avoiding the generation of gaps between adjacent cutters in the axial direction of the roller body. The cutter can complete continuous breakpoint cutting in the width direction of the paper towel while rotating with the roller body, thereby preventing missed cutting on the paper towel and ensuring the breakpoint cutting quality of the paper towel. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0034] Figure 1 A schematic structural diagram of a multi-segment cutter structure for a paper towel breakpoint provided by the present invention;

[0035] Figure 2 A front view of the multi-segment cutter structure for a tissue breakpoint provided by the present invention;

[0036] Figure 3 A left side view of the multi-segment cutter structure for a tissue breakpoint provided by the present invention;

[0037] Figure 4 for Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0038] Figure 5 for Figure 1 Schematic diagram of the structure of the middle cutter;

[0039] Figure 6 for Figure 1 Schematic diagram of the structure of the medium pressure block.

[0040] Description of reference numerals:

[0041] 1. Roller; 2. Cutter assembly; 3. Fixing member; 31. Mounting slot; 32. Fixing member mounting slot; 33. Cutter mounting slot; 34. Mounting hole; 4. Cutter; 41. Pressing plate; 42. Lower pressing table; 43. Blade; 44. Pressing end; 45. Cutting end; 46. Serrated blade; 5. Fixing member; 51. Pressing block; 52. Fixing part; 53. Pressing part; 54. Fixing hole. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0043] The main concept of the present invention is to provide a plurality of axially arranged mounting slots 31 and cutters 4 on the roller body 1, so that the cutter assembly 2 can complete the overall cutting of the paper towel with the cooperation of each cutter 4, and form the breakpoints of the paper towel through the serrated blades 46 on the cutter 4, thereby achieving the breakpoint connection of the paper towel. Compared with the traditional integrated cutter 4, each cutter 4 in the cutter structure 2 can independently achieve the breakpoint cutting of a unit length on the paper towel. The unit cutting lengths of each cutter 4 are combined to complete the overall breakpoint cutting of the paper towel, thereby achieving the breakpoint cutting effect of the original integrated cutter 4. In addition, the cutter structure 2 reduces the volume of a single cutter 4, thereby reducing the difficulty of manufacturing and the cost of using the cutter 4. At the same time, the axial arrangement and installation method can also reduce the spiral cutting angle of the cutter 4 when completing the paper towel cutting, thereby improving the cutting quality of the paper towel.

[0044] In addition, the setting of the multi-section cutter structure 2 allows each cutter 4 to be independently installed in each installation groove 31 of the roller body 1 through the fixing member 5. When one of the cutters 4 is damaged, the operator only needs to disassemble and replace the cutter 4 at the damaged part without having to disassemble all the cutters 4. This greatly shortens the repair time of the damaged cutter 4 while reducing maintenance costs, thereby improving the production efficiency of the overall paper towel production equipment.

[0045] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. The numbers of any elements in the drawings are for illustration only and not for limitation, and any names are for distinction only and do not have any limiting meaning.

[0046] The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0047] Example 1 of the multi-segment cutter structure for paper towel breakpoints provided by the present invention:

[0048] like Figures 1 to 6 As shown, the multi-segment cutter structure for tissue cutting points of the present invention comprises multiple sets of cutter assemblies 2, each of which is evenly distributed along the circumferential direction on the outer surface of a roller body 1. The roller body 1 is a circular roller extending in the left-right direction. The roller body 1 is driven by a drive device to rotate about its axis. There are six sets of cutter assemblies 2 on the roller body 1, and the cutter assemblies 2 are used to cooperate with other rollers to complete the cut-point cutting of tissues.

[0049] The cutter assembly 2 is described below. Figures 1 to 3 As shown, the cutter assembly 2 includes a fixing member 3, a cutter 4, and a fixing member 5. The fixing member 3 includes a plurality of mounting grooves 31 arranged axially along the outer surface of the roller body 1. The mounting grooves 31 are stepped grooves and are inclined relative to the axis of the roller body 1. The mounting grooves 31 are inclined from left to right in the radial direction of the roller body 1 toward the axis of the roller body 1, so that the left end of the right mounting groove 31 of adjacent mounting grooves 31 is higher than the right end of the left mounting groove 31. This allows for staggered installation of adjacent cutters 4 in the radial direction of the roller body 1. Each mounting groove 31 includes a cutter mounting groove 33 for mounting the cutter 4 and a fixing member mounting groove 32 for mounting the fixing member 5. Both the cutter mounting groove 33 and the fixing member mounting groove 32 are rectangular grooves, with the fixing member mounting groove 32 located above the cutter mounting groove 33 in the radial direction of the roller body 1.

[0050] The fixing member 5 is a pressing block 51, such as Figure 3 and Figure 6 As shown, the pressing block 51 includes a fixing portion 52 and a pressing portion 53. The fixing portion 52 has a fixing hole 54 for mounting a bolt. The fixing hole 54 is a countersunk hole to prevent the bolt installed in the pressing block 51 from interfering with the cut point of the tissue. The fixing member mounting slot 32 has a mounting hole 34 corresponding to the pressing block 51. The pressing block 51 is fixed to the fixing member mounting slot 32 via the bolt, the fixing hole 54, and the mounting hole 34. The cutter 4 is mounted between the pressing block 51 and the cutter mounting slot 33. The lower side of the pressing portion 53 has a downwardly protruding pressing platform 42, which is used to press the cutter 4 downward. There are three pressing blocks 51 in each fixing member mounting slot 32, and each pressing block 51 is evenly distributed along the length of the fixing member mounting slot 32. This ensures uniform force on the cutter 4 and increases the pressing force of the cutter 4 within the cutter mounting slot 33. In other embodiments, the number of pressing blocks 51 in the fixing member mounting slot 32 is one or four.

[0051] Compared to directly securing the cutter 4 to the roller body 1 with bolts, securing the cutter 4 to the cutter mounting slot 33 using a pressure block 51 offers greater flexibility. When maintenance personnel need to fine-tune the installation position of the cutter 4, they simply loosen the bolts on the corresponding pressure block 51 and tighten them after the adjustment is complete. This eliminates the need to replace the cutter 4 or adjust the entire cutter 4, making it easier to debug the cutter 4.

[0052] like Figure 4 and Figure 5 As shown, the cutter 4 includes a blade 43 and a pressure plate 41. The blade 43 is a rectangular plate-like structure, comprising a holding end 44 and a cutting end 45. The holding end 44 is located between the lower pressing platform 42 and the cutter mounting slot 33 and is pressed against the fixing member mounting slot 32 by a pressure block 51, bolts, and the pressure plate 41. The length of the cutter 4 is greater than the length of the cutter mounting slot 33, and the mounting slot 32 is tilted from left to right in the radial direction of the roller body 1 toward the axis of the roller body 1. This allows the left end of the right cutter 4 of the adjacent cutters 4 to overlap the right end of the left cutter 4 in the axial direction of the roller body 1, preventing missed cuts on the paper towel and achieving continuous, breakpoint cutting across the width of the paper towel. The cutting end 45 of each blade 43 has a serrated edge 46, which is used to cooperate with other rollers to achieve breakpoint cutting of the paper towel. The serrated blades 46 of the overlapping portions of two adjacent cutters 4 overlap in the radial direction of the roller body 1 to prevent the paper towel from being broken at the overlapping locations of two adjacent cutters 4. The pressure plate 41 is a rectangular plate structure, fixed to the fixed pressure end 44 of the blade 43 by glue. The pressure plate 41 is made of stainless steel and can increase the friction coefficient between the cutter 4, the pressure block 51, and the cutter mounting slot 33 while assisting the pressure block 51 in pressing the blade 43. This increases the friction between the cutter 4 and the pressure block 51, ensuring the stability of the cutter 4 in the cutter mounting slot 33.

[0053] Furthermore, because each mounting slot 31 is tilted relative to the axis of the roller body 1, the cutter 4 mounted therein is also tilted relative to the axis of the roller body 1. As the roller body 1 rotates about its axis, the cutter 4 maintains point contact with the roller that cuts the tissue paper, thereby reducing wear on the cutter 4 surface and extending its service life. Furthermore, this point contact also helps improve tissue cutting accuracy and enhances tissue production quality.

[0054] The working principle of the multi-segment cutter structure of the paper towel breakpoint of the present invention is summarized as follows:

[0055] When the cutters 4 rotate with the roller body 1, since the cutters 4 are tilted relative to the axis of the roller body 1, the cutting ends 45 of each cutter 4 cooperate with the corresponding roller ridges to cut the paper towel raw material from bottom to top. The paper towel is cut at the breakpoint under the squeezing action of the serrated blade 46 of the cutting end 45 of the blade 43 and the ridges. When one of the cutters 4 on the roller body 1 is damaged, the operator can remove the corresponding blade 43 by loosening the pressure block 51 that fixes the damaged cutter 4, and then replace it with a new cutter 4. Compared with the traditional one-piece cutter 4, the split cutter 4 of the present invention reduces the production cost and manufacturing difficulty of the cutter 4. At the same time, when the cutter 4 is damaged, the damaged cutter 4 can be quickly replaced, shortening the equipment downtime for maintenance and improving the production efficiency of the entire paper towel production equipment. When replacing the cutter 4, there is no need to replace all the cutters 4, which also reduces the production maintenance cost.

[0056] Example 2 of the multi-segment cutter structure for paper towel breakpoints provided by the present invention:

[0057] The main difference between it and Example 1 is:

[0058] In Example 1, the fixing member is a pressing block, and the cutter is fixed to the pressing block by bolts and drives the pressing block to press the cutter.

[0059] In this embodiment, the fixing member is a bolt, and the cutter is fixedly mounted on the cutter mounting groove by the bolt.

[0060] Example 3 of the multi-segment cutter structure for paper towel breakpoints provided by the present invention:

[0061] The main difference between it and Example 1 is:

[0062] In Example 1, the blade and the pressing plate are fixed and bonded to form an integrated structure by glue.

[0063] In this embodiment, the pressure plate is provided with a fixing pin, and the blade is provided with a socket corresponding to the fixing pin, and the blade and the pressure plate are connected and fixed through the pin hole.

[0064] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0065] In addition, in the description of this specification, “a plurality of” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. The multi-segment cutter structure of the paper towel breakpoint is characterized by: The cutter structure includes multiple groups of cutter assemblies uniformly distributed along the circumferential direction of the outer surface of the roller body, each group of cutter assemblies includes a fixing component, a cutter and a fixing part, the fixing component includes multiple mounting grooves arranged axially along the outer surface of the roller body, the mounting grooves are used to install the cutters and fixing parts, the number of the cutters and fixing parts are both multiple, the cutters are fixed to the mounting grooves by the fixing parts, and the cutters have a serrated blade to achieve breakpoint cutting of paper towels.

2. The multi-segment cutter structure for paper towel cutting points according to claim 1, characterized in that: Each of the mounting grooves is arranged obliquely relative to the axis of the roller body to achieve point contact between the cutter and the matching roller.

3. The multi-segment cutter structure for paper towel cutting points according to claim 2, characterized in that: The mounting groove includes a fixing member mounting groove and a cutter mounting groove, which are arranged in a stepped shape. The cutter mounting groove in the same mounting groove is located below the corresponding fixing member mounting groove in the radial direction of the roller body.

4. The multi-segment cutter structure for paper towel cutting points according to claim 1, characterized in that: The fixing member is a pressing block, which includes a fixing portion and a pressing portion. The fixing portion is used to fix the fixing member installation groove, and the pressing portion is used to press the cutter.

5. The multi-segment cutter structure for paper towel cutting points according to claim 4, characterized in that: The fixing member installation groove is provided with a plurality of installation holes for installing bolts, and the pressing block is fixedly installed on the fixing member installation groove by bolts.

6. The multi-segment cutter structure for paper towel cutting points according to claim 5, characterized in that: The number of pressing blocks installed in each of the fixing member installation grooves is not less than three and each pressing block is evenly distributed in the length direction of the fixing member installation groove to ensure the stability of the cutter fixed in the pressing block installation groove.

7. The multi-segment cutter structure for paper towel cutting points according to claim 2, characterized in that: The cutter includes a blade and a pressure plate, the blade includes a fixed pressure end and a cutting end, the pressure plate is fixedly installed on the fixed pressure end of the blade, and the pressure plate is used to cooperate with the pressure block to press the blade to improve the stability of the cutter in the cutter installation groove.

8. The multi-segment cutter structure for paper towel cutting points according to claim 2, characterized in that: Each of the mounting grooves is inclined from left to right toward the axis of the roller body in the radial direction of the roller body, so that the left end of the right cutter in the adjacent mounting groove is higher than the right end of the left cutter, and the length of the cutter is greater than the length of the cutter mounting groove, so that the left end of the cutter covers the upper side of the right end of the adjacent cutter on its left.

9. The multi-segment cutter structure for paper towel cutting points according to claim 8, characterized in that: The serrated blades of the covering parts of two adjacent cutters overlap each other along the radial direction of the roller body to avoid the paper towel from being broken incorrectly at the connecting position of the two adjacent cutters.

10. The multi-segment cutter structure for paper towel cutting points according to claim 4, characterized in that: The fixing parts of the pressing blocks are each provided with fixing holes for installing bolts, and the fixing holes are countersunk holes to prevent the bolts from affecting the cutting of the paper towels.

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