Tooth-shaped embossing cutter
By designing a toothed embossing knife, its embossing blade adopts an inclined and alternately spaced design, it solves the problem that existing embossing knife is difficult to make twill embossing, realizes the pressing of twill embossing arranged alternately in length and short, and improves the structural strength of the embossing blade.
Patent Information
- Application Number
- CN202421773570.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Existing embossing knives are difficult to make twill embossed in alternating lengths, and the design lacks tools suitable for special-shaped patterns.
A toothed embossing knife is designed, which includes an embossing wheel and a plurality of embossing blades arranged on the wheel surface. The embossing blades adopt a first embossing blade with a shorter length and a second embossing blade with a longer length, both inclined with respect to the central axis of the embossing wheel and alternately arranged around the central axis.
It realizes the compression of twill embossing with alternating lengths and shorts, which meets the needs of users for special patterns, and enhances the structural strength of the embossing blade through chamfering design and improves durability.
Smart Images
Figure CN222843441U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of surface embossing, in particular to a toothed embossing knife. Background Art
[0002] In the field of mechanical processing, an embossing knife is a tool specifically used to machine patterns or lines on the surface of metal workpieces. The workpiece is rotated by the rotary motion of the machine tool and pressure is applied to the surface of the workpiece using the embossing knife to extrude and form a specific concave and convex pattern or texture. This processing method is often used for decorative or functional processing, and can produce various uneven and clear lines on the metal surface to enhance the beauty or functionality of the workpiece.
[0003] Most of the existing embossing knives in the industry are straight embossing or diamond embossing. The embossing teeth of these embossing knives have a small tooth height, dense tooth arrangement, limited embossing depth that can be pressed into the workpiece, and a single embossing pattern. Embossing knives with special-shaped patterns need to be specially made. The existing tool design lacks a tool that can produce alternating long and short twill embossing, which is inconvenient for users to use.
[0004] In view of the above shortcomings, we need to develop a toothed embossing knife to meet the needs of the majority of users. Utility Model Content
[0005] In view of the problem mentioned above that the existing tool design lacks the ability to produce twill embossing with alternating long and short patterns, the technical solution adopted by the utility model to solve the technical problem is:
[0006] A toothed embossing knife comprises an embossing wheel and a plurality of embossing blades arranged on the surface of the embossing wheel, wherein the embossing wheel is provided with an end face A and an end face B, a wheel surface C for rolling is provided between the end face A and the end face B, the embossing blades are arranged on the wheel surface C, the embossing blades comprise a first embossing blade of shorter length and a second embossing blade of longer length, the first embossing blade and the second embossing blade are both arranged obliquely relative to the central axis of the embossing wheel, the first embossing blade and the second embossing blade are arranged alternately and spaced around the circumference of the central axis of the embossing wheel, and the distance between one end of each of the first embossing blades close to the end face B and the end face B is the same.
[0007] Further, the distance between the end face A and the end face B is dimension D, the first embossing blade and the second embossing blade both extend from the end face A toward the end face B, the distance E between the starting end and the end end of the first embossing blade is greater than half of the dimension D and less than the dimension D, and the distance F between the starting end and the end end of the second embossing blade is greater than the dimension D.
[0008] Furthermore, the end of the first embossing blade is located at a position of the wheel surface C close to the end surface B, and the distance G between the end of the first embossing blade and the end surface B is less than one third of the dimension D.
[0009] Further, the inclination angle between the first embossing blade and the central axis is the same as the inclination angle between the second embossing blade and the central axis, and both inclination angles are angle H, and the value range of angle H is between 20 and 40 degrees.
[0010] Further, the inclination angle between the first embossing blade and the central axis is angle J, the inclination angle between the second embossing blade and the central axis is angle K, and the difference between angle J and angle K is less than 5 degrees.
[0011] Furthermore, both ends of the embossing blade in the length direction are provided with chamfers, the chamfers are inclined from inside to outside toward the direction close to the center of the embossing blade, and an angle L is formed between the chamfer and the central axis, and the angle L is an acute angle.
[0012] Further, the first embossing blade and the second embossing blade are alternately spaced around the circumference of the central axis at an angle Q, and the value range of the angle Q is between 6 and 12 degrees.
[0013] Furthermore, the first embossing blade and the second embossing blade arranged adjacent to each other form a group of embossing combination blades, the embossing combination blades are arranged at intervals around the circumference of the central axis, the interval angle between adjacent embossing combination blades is angle S, and the value range of angle S is between 5 and 15 degrees.
[0014] Furthermore, the cross-sectional structure of the embossing blade protrudes from the wheel surface C toward the outside and adopts a triangular blade structure, and the blade tip of the triangular blade structure is an obtuse angle.
[0015] Furthermore, the triangular blade structure is arranged in a centrally symmetrical manner, the blade face angle of the blade tip is angle M, the value range of angle M is between 100 and 120 degrees, the raised height of the blade tip is dimension N, the diameter of the wheel surface C is dimension T, and dimension N is less than 5% of dimension T.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The embossing blade of the utility model adopts a first embossing blade with a shorter length and a second embossing blade with a longer length. Both the first embossing blade and the second embossing blade are arranged obliquely around the central axis of the embossing wheel and alternately at intervals on the circumference. The embossing knife with such a tooth-shaped design can produce twill embossing with alternating lengths to meet the user's special texture requirements.
[0018] 2. The embossing blade of the utility model is provided with chamfers at both ends in the length direction, which enhances the structural strength of the embossing blade and prevents the tip of the embossing blade from being easily deformed, broken or shattered during the process of embossing the patterns, thereby improving the durability of the embossing blade and reducing the frequency of replacement of the embossing blade by users. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The utility model is a three-dimensional diagram of a toothed embossing knife.
[0020] Figure 2 The utility model is an axial view of a toothed embossing knife.
[0021] Figure 3 It is a radial view of a toothed embossing knife of the utility model.
[0022] Figure 4 for Figure 2 WW cutaway view.
[0023] Figure 5 for Figure 3 XX section view.
[0024] Figure 6 for Figure 3 Y-enlarged view of .
[0025] Figure 7 for Figure 4 Z magnified view of . DETAILED DESCRIPTION
[0026] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.
[0027] like Figure 1 , Figure 2 and Figure 6 A toothed embossing knife shown in the figure comprises an embossing wheel 1 and a plurality of embossing blades 2 arranged on the surface of the embossing wheel 1, the embossing wheel 1 is provided with an end face A and an end face B, a wheel surface C for rolling is provided between the end face A and the end face B, the embossing blades 2 are arranged on the wheel surface C, the embossing blades 2 comprise a first embossing blade 21 with a shorter length and a second embossing blade 22 with a longer length, the first embossing blade 21 and the second embossing blade 22 are both inclined relative to the central axis 11 of the embossing wheel 1, the first embossing blade 21 and the second embossing blade 22 are alternately arranged around the circumference of the central axis 11 of the embossing wheel 1, and the distance between one end of each of the first embossing blades 21 close to the end face B and the end face B is the same.
[0028] Specifically, in some embodiments, the embossing wheel 1 is a rolling processing wheel for a toothed embossing knife installed on a tool handle, the tool handle of the toothed embossing knife is provided with an articulated shaft for installing the embossing wheel 1, and the embossing wheel 1 is provided with a wheel axle hole 12 for the articulated shaft to extend into, and the embossing blade 2 is a tool processing blade for the toothed embossing knife to contact the surface of the workpiece to implement embossing patterns. When in use, the tool handle of the toothed embossing knife is installed on a tool holder seat or a chuck on a machine tool, and the embossing wheel 1 is brought close to the workpiece by moving the tool holder seat or the chuck, or the workpiece is moved to bring the workpiece close to the embossing wheel 1, and the workpiece is driven by the machine tool to rotate, and radial pressure toward the workpiece is gradually applied to the embossing wheel 1, and the embossing blade 2 is gradually pressed into the workpiece, and the embossing wheel 1 rotates with the rotation of the workpiece, so that the surface of the workpiece is circumferentially pressed into the indentation of the embossing blade 2, that is, the required embossing patterns are formed.
[0029] More specifically, in order to produce twill embossing with alternating lengths, the embossing blade 2 includes a first embossing blade 21 with a shorter length and a second embossing blade 22 with a longer length. The first embossing blade 21 and the second embossing blade 22 are inclined and inclined at an acute angle clockwise relative to the central axis 11 of the embossing wheel 1. The first embossing blade 21 and the second embossing blade 22 are respectively arranged circumferentially around the central axis 11 of the embossing wheel 1 and arranged in an adjacent alternating manner, so that the second embossing blade 22 is adjacent to the front and rear of the first embossing blade 21, and the first embossing blade 21 is adjacent to the front and rear of the second embossing blade 22. During the rolling pressing process, twill embossing with alternating lengths can be achieved.
[0030] More specifically, the embossing wheel 1 is provided with an end face A and an end face B arranged in parallel on both sides of the axial direction, and a wheel face C for arranging the embossing blades 2 for embossing is provided between the end face A and the end face B. The end face A, the end face B and the wheel face C constitute a cylindrical structure of the embossing wheel 1. The end of the first embossing blade 21 close to the end face A is located at the junction between the end face A and the wheel face C. The end of the first embossing blade 21 close to the end face B has a certain spacing distance from the end face B. The end of the second embossing blade 22 close to the end face A is located at the junction between the end face A and the wheel face C. It is located at the junction between the end face A and the wheel face C, and the end of the second embossing blade 22 close to the end face B is located at the junction between the end face B and the wheel face C. The center of the embossing wheel 1 is provided with a wheel axle hole 12 for the hinge shaft to extend into. After the embossing blade 2 contacts the surface of the workpiece, the rotation of the workpiece drives the embossing wheel 1 to rotate, and the wheel axle hole 12 of the embossing wheel 1 is hinged and slid relative to the hinge shaft. The feed speed and feed pressure required for embossing are applied by the machine tool, so that the embossing blade 2 can press the ideal embossing pattern on the surface of the workpiece.
[0031] like Figure 3 , Figure 4 and Figure 6A toothed embossing knife is shown, wherein the distance between the end face A and the end face B is dimension D, the first embossing blade 21 and the second embossing blade 22 both extend from the end face A toward the end face B, the distance E between the starting end and the end end of the first embossing blade 21 is greater than half of the dimension D and less than the dimension D, and the distance F between the starting end and the end end of the second embossing blade 22 is greater than the dimension D.
[0032] Specifically, in some embodiments, on the basis of embossing the alternating long and short twill patterns, in order to further define the length dimension E of the first embossing blade 21 and the length dimension F of the second embossing blade 22, the end face distance between the parallel end face A and the end face B is dimension D, and dimension D is the wheel face width of the wheel face C. The end of the first embossing blade 21 close to the end face A is the starting end of the first embossing blade 21, and the end of the first embossing blade 21 close to the end face B is the end of the first embossing blade 21. The starting end of the first embossing blade 21 is located at the connection intersection between the end face A and the wheel face C. The distance between the starting end and the end of the first embossing blade 21 forms dimension E, and dimension E satisfies the relational expression (1):
[0033] (1)
[0034] The end of the second embossing blade 22 close to the end face A is the starting end of the second embossing blade 22, and the end of the second embossing blade 22 close to the end face B is the end of the second embossing blade 22. The starting end of the second embossing blade 22 is located at the connection intersection between the end face A and the wheel face C. The distance between the starting end and the end of the second embossing blade 22 forms a dimension F, and the dimension F satisfies the relational expression (2):
[0035] (2)
[0036] In summary, the relationship between dimension E and dimension F satisfies relational expression (3):
[0037] (3)
[0038] The user can select the size that meets the above relational expression (3) according to the actual situation to manufacture the first embossing edge 21 and the second embossing edge 22.
[0039] like Figure 6 In the toothed embossing knife shown in the figure, the distance G between the end of the first embossing blade 21 and the end face B is less than one third of the dimension D, and the end of the first embossing blade 21 is located at a position on the wheel surface C close to the end face B.
[0040] Specifically, in some embodiments, on the basis of embossing the alternating long and short oblique patterns, in order to further define the end position of the first embossing blade 21, the distance between the end of the first embossing blade 21 and the end surface B forms a dimension G, and the dimension G satisfies the relational expression (4):
[0041] (4)
[0042] The end of the second embossing blade 22 is located at the connection and intersection between the end surface B and the wheel surface C. The embossing patterns of the first embossing blade 21 and the second embossing blade 22 form an obvious visual effect of different lengths.
[0043] like Figure 3 A toothed embossing knife is shown, wherein the inclination angle between the first embossing blade 21 and the central axis 11 is the same as the inclination angle between the second embossing blade 22 and the central axis 11, and both inclination angles are angle H, and the value range of angle H is between 20 and 40 degrees.
[0044] Specifically, in some embodiments, on the basis of pressing out the long and short alternating oblique embossing, in order to further limit the inclination angles of the first embossing blade 21 and the second embossing blade 22, so as to press out the inclined lines parallel to each other, such as Figure 3 As shown, in this embodiment, the inclination angle of the first embossing blade 21 and the inclination angle of the second embossing blade 22 are the same, and the two are inclined relative to the central axis 11 of the embossing wheel 1 to form an angle H, and the value range of the angle H is between 20 and 40 degrees, that is, Preferably, the angle H can be selected to be 33 degrees to produce a better texture effect. If the angle H is too small, the embossing blade 2 will produce an effect tending to straight embossing. If the angle H is too large, it will affect the spacing arrangement of the first embossing blade 21 and the second embossing blade 22.
[0045] like Figure 6 In the toothed embossing knife shown in the figure, the inclination angle between the first embossing blade 21 and the central axis 11 is angle J, the inclination angle between the second embossing blade 22 and the central axis 11 is angle K, and the difference between the angle J and the angle K is less than 5 degrees.
[0046] Specifically, in some embodiments, on the basis of pressing out the long and short alternating oblique embossing, in order to further limit the inclination angles of the first embossing blade 21 and the second embossing blade 22, so as to press out the inclined lines which are not parallel to each other, such as Figure 6 As shown, in this embodiment, the first embossing blade 21 is inclined relative to the central axis 11 of the embossing wheel 1 to form an angle J, and the second embossing blade 22 is inclined relative to the central axis 11 of the embossing wheel 1 to form an angle K, wherein the angle J and the angle K satisfy the relational expression (5):
[0047] (5)
[0048] If the difference between angle J and angle K is too small, the first embossing blade 21 and the second embossing blade 22 will produce parallel lines. If the difference between angle J and angle K is too large, the spacing arrangement of the first embossing blade 21 and the second embossing blade 22 will be affected.
[0049] like Figure 3 A toothed embossing knife is shown, wherein both ends of the embossing blade 2 in the length direction are provided with chamfers 23, and the chamfers 23 are inclined from the inside to the outside toward the center of the embossing blade 2, and an angle L is formed between the chamfers 23 and the central axis 11, and the angle L is an acute angle.
[0050] Specifically, in some embodiments, on the basis of embossing the alternating long and short twill patterns, in order to further strengthen the blade structure strength of the embossing blade 2, chamfers 23 are provided at both ends of the length direction of the embossing blade 2. The chamfers 23 extend from the embossing blade 2 and the wheel surface C in a direction away from the center of the embossing wheel 1 and are inclined in a direction close to the center of the embossing blade 2 to form a chamfered structure. The chamfers 23 are inclined relative to the central axis 11 of the embossing wheel 1 to form an acute angle L. The angle L has a value range of 40 to 60 degrees, that is, Preferably, the effect of pressing out the texture by using the angle L of 50 degrees is better. If the angle L is too small, the embossed blade 2 will tend to be a flat structure, and there will not be enough blade length to press the texture. If the angle L is too large, the structural strength of the blade body of the embossed blade 2 will not be significantly enhanced, and the blade tip will be easily deformed, broken, or shattered.
[0051] like Figure 5 In the toothed embossing knife shown in the figure, the first embossing blade 21 and the second embossing blade 22 are alternately spaced around the central axis 11 at an angle Q, and the value range of the angle Q is between 6 and 12 degrees.
[0052] Specifically, in some embodiments, on the basis of embossing the long and short alternating oblique patterns, in order to further define the spacing distance between the first embossing blade 21 and the second embossing blade 22, the first embossing blade 21 and the second embossing blade 22 are alternately spaced around the central axis 11 of the embossing wheel 1 to form an angle Q, and the value range of the angle Q is between 6 and 12 degrees, that is, Preferably, the texture effect produced by pressing at an angle Q of 9 degrees is better. If the angle Q is too small, the texture effect produced by pressing will be too tight, and if the angle Q is too large, the texture effect produced by pressing will be too loose.
[0053] like Figure 5The toothed embossing knife shown in the figure comprises the first embossing blade 21 and the second embossing blade 22 arranged adjacent to each other and forming a group of embossing combination blades 3, wherein the embossing combination blades 3 are arranged at circumferential intervals around the central axis 11, and the interval angle between adjacent embossing combination blades 3 is an angle S, and the value range of the angle S is between 5 and 15 degrees.
[0054] Specifically, in some embodiments, the interval arrangement of a single first embossing blade 21 and a single second embossing blade 22 can form a group of embossing combination blades 3. As long as the interval of the embossing combination blades 3 is reasonably controlled, the arrangement of the embossing blades 2 on the wheel surface C can be conveniently controlled. On the basis of embossing the alternating arrangement of long and short twill embossing, in order to further limit the interval distance between each group of embossing combination blades 3, the interval angle between each group of embossing combination blades 3 forms an angle S, and the value range of the angle S is between 5 and 15 degrees, that is, Preferably, the texture effect produced by pressing at an angle S of 9 degrees is better. If the angle S is too small, the texture effect produced by pressing will be too tight, and if the angle S is too large, the texture effect produced by pressing will be too loose.
[0055] like Figure 7 In the toothed embossing knife shown, the cross-sectional structure of the embossing blade 2 is convex from the wheel surface C toward the outside and adopts a triangular blade structure 24, and the blade tip 25 of the triangular blade structure 24 is an obtuse angle.
[0056] Specifically, in some embodiments, on the basis of pressing out the long and short alternating oblique embossing, in order to further define the cross-sectional profile structure of the embossing blade 2, such as Figure 7 As shown, the cross-sectional structure of the embossing blade 2 adopts a triangular blade structure 24, the first and second angles of the triangular blade structure 24 are located on the wheel surface C, and the third angle protrudes from the wheel surface C toward the direction away from the center of the embossing wheel 1 to form a triangular blade structure 24. In order to enhance the structural strength of the blade body of the triangular blade structure 24, the blade tip 25 of the triangular blade structure 24 adopts an obtuse-angle structure, which effectively disperses the embossing pressure exerted by the blade tip 25 contacting the workpiece surface on the portion of the triangular blade structure 24 contacting the wheel surface C, thereby avoiding blade tip deformation, blade tip fracture, blade tip collapse, etc. If the blade tip 25 of the triangular blade structure 24 adopts an acute-angle structure, the area of the triangular blade structure 24 contacting the wheel surface C is small, which may not be sufficient to disperse the force exerted on the embossed pattern, resulting in blade tip deformation, blade tip fracture, blade tip collapse, etc.
[0057] like Figure 4 and Figure 7 A toothed embossing knife is shown, wherein the triangular blade structure 24 is centrally symmetrically arranged, the blade surface angle 26 of the blade tip 25 is an angle M, the value range of the angle M is between 100 and 120 degrees, the protruding height of the blade tip 25 is dimension N, the diameter of the wheel surface C is dimension T, and the dimension N is less than 5% of the dimension T.
[0058] Specifically, in some embodiments, on the basis of pressing out the twill embossing with alternating long and short patterns, in order to further enhance the structural strength of the blade body of the embossing blade 2, the exposed blade surfaces on both sides of the triangular blade structure 24 are arranged symmetrically with the blade tip 25 as the center, so as to avoid uneven force on the blade surface on one side, resulting in blade surface deformation, blade surface bending, blade tip breakage, etc. More specifically, the blade surface angle 26 at the blade tip 25 forms an angle M, and the value range of the angle M is between 100 and 120 degrees. Preferably, when the angle M is 110 degrees, the blade body structural strength is better. If the angle M is too small, the blade body structural strength will be weakened, and the blade tip deformation, blade tip breakage, and blade tip breakage will easily occur. If the angle M is too large, it will affect the spacing arrangement of the embossing blades 2, and will also affect the depth of the pressed pattern and the difficulty of pressing.
[0059] More specifically, the height of the protrusion where the blade tip 25 is located forms a tooth height dimension N, the diameter of the wheel surface C is dimension T, and the tooth height dimension N changes proportionally with the diameter dimension T of the wheel surface C as a reference value. The relationship between the dimension N and the dimension T satisfies the relational expression (6):
[0060] (6)
[0061] If the dimension N is too small, the depth of the lines pressed by the embossing blade 2 will be insufficient. The shallower the depth of the lines, the easier it will be to wear out and lose, thus affecting the appearance. If the dimension N is too large, the circumferential spacing of the embossing blade 2 will be affected.
[0062] like Figures 1 to 7 As shown, the specific implementation of Example 1 of the utility model is as follows:
[0063] When in use, the embossing wheel 1 is installed on the hinged shaft of the handle of the toothed embossing knife, and the handle of the toothed embossing knife is installed on the tool holder seat or the chuck on the machine tool. The embossing wheel 1 is brought close to the workpiece by moving the tool holder seat or the chuck, or the workpiece is moved close to the embossing wheel 1. The machine tool drives the workpiece to rotate, and radial pressure toward the workpiece is gradually applied to the embossing wheel 1. The tip 25 of the first embossing blade 21 and the tip 25 of the second embossing blade 22 are gradually pressed into the workpiece by the feed thrust of the machine tool. The embossing wheel 1 rotates with the rotation of the workpiece, so that the surface of the workpiece is circumferentially pressed into the arranged indentations of the first embossing blade 21 and the second embossing blade 22, respectively, thereby forming the required embossing pattern. After the machine tool feeds the embossing pattern to a preset depth, the toothed embossing knife can be withdrawn in the opposite direction to complete the embossing pattern processing on the workpiece surface.
[0064] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.
Claims
1. A toothed embossing knife, characterized in that: The invention comprises an embossing wheel (1) and a plurality of embossing blades (2) arranged on the surface of the embossing wheel (1), wherein the embossing wheel (1) is provided with an end face A and an end face B, a wheel surface C for rolling is provided between the end face A and the end face B, the embossing blades (2) are arranged on the wheel surface C, the embossing blades (2) comprise a first embossing blade (21) of shorter length and a second embossing blade (22) of longer length, the first embossing blade (21) and the second embossing blade (22) are both arranged obliquely relative to the central axis (11) of the embossing wheel (1), the first embossing blade (21) and the second embossing blade (22) are arranged alternately around the circumference of the central axis (11) of the embossing wheel (1), and the distance between one end of each of the first embossing blades (21) close to the end face B and the end face B is the same.
2. The toothed embossing knife according to claim 1, characterized in that: The distance between the end face A and the end face B is dimension D, the first embossing blade (21) and the second embossing blade (22) both extend from the end face A toward the end face B, the distance E between the starting end and the end end of the first embossing blade (21) is greater than half of the dimension D and less than the dimension D, and the distance F between the starting end and the end end of the second embossing blade (22) is greater than the dimension D.
3. The toothed embossing knife according to claim 2, characterized in that: The end of the first embossing blade (21) is located on the wheel surface C close to the end surface B, and the distance G between the end of the first embossing blade (21) and the end surface B is less than one third of the dimension D.
4. The toothed embossing knife according to claim 1, characterized in that: The inclination angle between the first embossing blade (21) and the central axis (11) is the same as the inclination angle between the second embossing blade (22) and the central axis (11), and both inclination angles are angle H, and the value range of angle H is between 20 and 40 degrees.
5. The toothed embossing knife according to claim 1, characterized in that: The inclination angle between the first embossing blade (21) and the central axis (11) is angle J, the inclination angle between the second embossing blade (22) and the central axis (11) is angle K, and the difference between angle J and angle K is less than 5 degrees.
6. The toothed embossing knife according to claim 1, characterized in that: Both ends of the embossing blade (2) in the length direction are provided with chamfers (23), the chamfers (23) are inclined from the inside to the outside in a direction close to the center of the embossing blade (2), and an angle L is formed between the chamfers (23) and the central axis (11), and the angle L is an acute angle.
7. The toothed embossing knife according to claim 1, characterized in that: The first embossing blade (21) and the second embossing blade (22) are alternately spaced around the circumference of the central axis (11) at an angle Q, and the value range of the angle Q is between 6 and 12 degrees.
8. The toothed embossing knife according to claim 1, characterized in that: The first embossing blade (21) and the second embossing blade (22) arranged adjacent to each other at intervals form a group of embossing combination blades (3); the embossing combination blades (3) are arranged at intervals around the central axis (11); the interval angle between adjacent embossing combination blades (3) is an angle S; the value range of the angle S is between 5 and 15 degrees.
9. A toothed embossing knife according to any one of claims 1 to 8, characterized in that: The cross-sectional structure of the embossing blade (2) is protruding from the wheel surface C toward the outside and adopts a triangular blade structure (24), and the blade tip (25) of the triangular blade structure (24) is an obtuse angle.
10. The toothed embossing knife according to claim 9, characterized in that: The triangular blade structure (24) is centrally symmetrically arranged, the blade face angle (26) of the blade tip (25) is an angle M, the value range of the angle M is between 100 and 120 degrees, the protrusion height of the blade tip (25) is a dimension N, the diameter of the wheel surface C is a dimension T, and the dimension N is less than 5% of the dimension T.