Cutter structure and cutter assembly with same

Abstract

The utility model provides a cut-off knife structure and a cut-off knife assembly with the cut-off knife structure, the cut-off knife structure comprises a cut-off piece, a first avoiding channel extending in the preset direction is arranged on the cut-off piece in a penetrating mode, a cut-off opening is formed in one end of the first avoiding channel, and a communication opening is formed in the other end of the first avoiding channel; the cutter holder is connected with the cutting part, a second avoiding channel is arranged in the cutter holder in a penetrating mode in the preset direction, the second avoiding channel and the first avoiding channel are oppositely arranged, the second avoiding channel is arranged on the side, close to the communicating opening, of the first avoiding channel, and the second avoiding channel communicates with the first avoiding channel; the first avoiding channel and the second avoiding channel are both matched with the material smashing piece in shape, so that the material smashing end of the material smashing piece acts on the material position of the cutting opening after passing through the second avoiding channel and the first avoiding channel. By means of the technical scheme, the technical problem that in the prior art, the cutting effect of a cutting knife is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting structures, in particular to a cutting knife structure and a cutting knife assembly having the same. Background Art

[0002] At present, in the sample preparation process of testing the hysteresis loss of vulcanized rubber, a cutter is usually used to cut out the sample. In order to cut out a sample of a specific shape, the cutter needs to be pressed on the sample to be cut during cutting.

[0003] However, in the process of cutting and preparing samples with the above-mentioned cutting knife, the sample often sticks to the cutting knife and is difficult to separate. In addition, the surface of the sample is easily damaged in the process of separating the cutting knife and the sample, which affects the quality of the sample and leads to poor cutting and preparing effect. Utility Model Content

[0004] The main purpose of the utility model is to provide a cutting knife structure and a cutting knife assembly having the same, so as to solve the technical problem that the cutting knife in the prior art has a poor cutting and sample making effect.

[0005] In order to achieve the above object, according to one aspect of the utility model, a cutting knife structure is provided, comprising:

[0006] A cutting piece, wherein a first avoidance channel extending along a preset direction is provided through the cutting piece, one end of the first avoidance channel forms a cutting opening, and the other end of the first avoidance channel forms a connecting opening;

[0007] A cutting seat, the cutting seat is connected to the cutting piece, a second avoidance channel along a preset direction is provided through the cutting seat, the second avoidance channel is arranged opposite to the first avoidance channel, the second avoidance channel is arranged on a side of the first avoidance channel close to the connecting port, and the second avoidance channel is connected to the first avoidance channel;

[0008] The first avoidance channel and the second avoidance channel are both adapted to the shape of the pounding piece, so that the pounding end of the pounding piece acts on the material at the cutting edge after passing through the second avoidance channel and the first avoidance channel.

[0009] Furthermore, the cutting seat is movably arranged along a preset direction, and the cutting seat has a cutting position and an avoidance position; the cutting structure also includes:

[0010] A mounting member, wherein a movable channel extending in a preset direction is provided through the mounting member, the outer shape of the cutting member is adapted to the shape of the movable channel, and at least a part of the cutting member is movably disposed in the movable channel;

[0011] When the cutting blade seat is in the cutting position, the cutting opening extends out of the movable channel; when the cutting blade seat is in the avoiding position, the cutting opening is located in the movable channel.

[0012] Furthermore, the cutting seat includes a limiting section and a connecting section that are connected to each other. The connecting section is connected to the cutting piece. The outer shape of the connecting section is adapted to the shape of the movable channel. At least part of the connecting section is movably arranged in the movable channel. The outer edge of the limiting section protrudes from the outer edge of the connecting section. The mounting piece has a positioning end face, which is arranged around the end of the movable channel. The part of the limiting section protruding from the connecting section is arranged opposite to the positioning end face. The limiting section is used to abut and limit with the positioning end face.

[0013] Furthermore, the mounting member also has a guide channel extending in a preset direction, and the guide channel is spaced apart from the movable channel; the cutting knife structure also includes a guide rod, and the guide channel is adapted to the shape of the guide rod; one end of the guide rod is connected to the limiting section;

[0014] Wherein, the other end of the guide rod is movably arranged in the guide channel; or,

[0015] The other end of the guide rod is fixed in the guide channel, and at least a portion of the guide rod is telescopically arranged.

[0016] Furthermore, the mounting member also has a first guide channel extending along a preset direction, and the first guide channel is spaced apart from the movable channel; the cutting knife structure also includes:

[0017] A first guide rod, wherein the first guide channel is adapted to the shape of the first guide rod; one end of the first guide rod is connected to the limiting section, and the other end of the first guide rod is movably disposed in the first guide channel;

[0018] The reset member is arranged in the first guide channel, one end of the reset member is connected or abutted with the first guide channel, and the other end of the reset member is abutted or connected with the other end of the first guide rod.

[0019] Furthermore, the mounting member also has a second guide channel extending in a preset direction, the second guide channel is spaced apart from the movable channel; the second guide channel has a first guide section and a second guide section connected to each other, the inner side wall surface of the first guide section protrudes from the inner side wall surface of the second guide section, and a step surface is formed at the connection between the first guide section and the second guide section; the cutting knife structure also includes:

[0020] The second guide rod includes a first rod segment and a second rod segment connected to each other, one end of the first rod segment away from the second rod segment is connected to the limiting segment, the outer edge of the second rod segment protrudes from the outer edge of the first rod segment, the first guide segment is adapted to the shape of the first rod segment, the second rod segment can be movably arranged in the second guide segment, and the second rod segment has a positioning surface arranged opposite to the step surface, and the positioning surface is used to abut and position with the step surface.

[0021] Further, the first guide channel and the second guide channel are arranged at intervals; and / or,

[0022] The first guide channel and the second guide channel are arranged around the periphery of the movable channel; and / or,

[0023] The cutter structure also includes a wear-resistant part, which is arranged on the inner wall surface of the movable channel and is located between at least part of the connecting section and the mounting part.

[0024] Further, the second avoidance channel includes a first avoidance section, a second avoidance section and a third avoidance section which are connected in sequence; the third avoidance section is arranged on a side of the second avoidance section close to the connecting port, the third avoidance section is adapted to the shape of at least a part of the cutting piece, and the third avoidance section is detachably connected to the cutting piece;

[0025] Wherein, along the extension direction from the second avoidance section to the first avoidance section, the cross-sectional area of ​​the first avoidance section gradually increases; and / or,

[0026] Along the extending direction from the second avoidance section to the third avoidance section, the cross-sectional area of ​​at least a part of the third avoidance section gradually increases.

[0027] Further, the second avoidance channel includes a first avoidance section, a second avoidance section and a third avoidance section connected in sequence, the third avoidance section is arranged on a side of the second avoidance section close to the connecting port, and the third avoidance section is adapted to the shape of at least a portion of the cutting piece; a first positioning step surface is arranged at one end of the third avoidance section close to the cutting piece, and a second positioning step surface adapted to the first positioning step surface is arranged on the cutting piece;

[0028] Among them, the cutting piece has a locking section and a knife body connected to each other, the locking section is inserted in the third avoidance section and locked with the third avoidance section, the second positioning step surface is located at the connection between the locking section and the knife body, and the first positioning step surface is used to abut and position with the second positioning step surface.

[0029] According to another aspect of the present invention, a cutting knife assembly is provided, comprising:

[0030] The cutting knife structure provided above;

[0031] The pounding piece is movably arranged, and the pounding piece has a pounding state and an avoidance state; when the pounding piece is in the pounding state, the pounding piece is movably arranged in the second avoidance channel of the cutter structure and the first avoidance channel of the cutter structure; when the pounding piece is in the avoidance state, the pounding piece avoids the cutter structure.

[0032] By applying the technical solution of the utility model, the connection between the cutting blade and the cutting piece can facilitate the cutting of the cutting piece. At the same time, by setting the first avoidance channel and the second avoidance channel, an avoidance channel for the pounding piece to pass through is formed in the cutting blade and the cutting piece, so that after the cutting piece completes the cutting, the pounding piece can pass through the avoidance channel, and the pounding end can act on the material at the cutting opening. Through the action of the pounding end, the cut material and the cutting piece are effectively separated, avoiding the situation that the material is adhered to the cutting opening and is difficult to separate, ensuring the separation effect of the material, avoiding the situation that the cutting part of the material is damaged during the separation process, and thus effectively ensuring the cutting and sampling quality of the material by the cutting blade structure. Therefore, the cutting blade structure provided by this embodiment can solve the technical problem that the cutting and sampling effect of the cutting blade in the prior art is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0034] Figure 1 A top view of a cutting knife structure provided according to an embodiment of the utility model is shown;

[0035] Figure 2 The AA cross-sectional view of the cutting knife structure provided according to the embodiment of the utility model is shown;

[0036] Figure 3 A BB cross-sectional view of a cutting knife structure provided according to an embodiment of the utility model is shown.

[0037] The above drawings include the following reference numerals:

[0038] 10. cutting piece; 11. first avoidance channel; 12. second positioning step surface; 13. locking section; 14. knife body;

[0039] 20. Cutter seat; 21. Second avoidance channel; 211. First avoidance section; 212. Second avoidance section; 213. Third avoidance section; 22. Limiting section; 23. Connecting section;

[0040] 30. Mounting member; 31. Positioning end surface; 32. Guide channel; 321. First guide channel; 322. Second guide channel; 3221. First guide section; 3222. Second guide section;

[0041] 40. guide rod; 41. first guide rod; 42. second guide rod; 421. first rod segment; 422. second rod segment; 4221. positioning surface;

[0042] 50. Reset parts;

[0043] 60. Wear-resistant parts. DETAILED DESCRIPTION

[0044] 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 utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] like Figures 1 to 3 As shown, the first embodiment of the utility model provides a cutting structure, which includes a cutting piece 10, and a first avoidance channel 11 extending along a preset direction is provided on the cutting piece 10, one end of the first avoidance channel 11 forms a cutting opening, and the other end of the first avoidance channel 11 forms a connecting opening. The cutting structure also includes a cutting seat 20, which is connected to the cutting piece 10, and a second avoidance channel 21 extending along a preset direction is provided on the cutting seat 20, and the second avoidance channel 21 is arranged opposite to the first avoidance channel 11, and the second avoidance channel 21 is arranged on a side of the first avoidance channel 11 close to the connecting opening, and the second avoidance channel 21 is connected to the first avoidance channel 11. Among them, the first avoidance channel 11 and the second avoidance channel 21 are both adapted to the shape of the pounding piece, so that the pounding end of the pounding piece acts on the material at the cutting opening after passing through the second avoidance channel 21 and the first avoidance channel 11.

[0046] The cutter structure provided in the first embodiment can facilitate the cutting of the cutting piece 10 by connecting the cutter seat 20 with the cutting piece 10. At the same time, by setting the first avoidance channel 11 and the second avoidance channel 21, an avoidance channel for the pounding piece to pass through is formed in the cutter seat 20 and the cutting piece 10, so that after the cutting piece 10 completes the cutting, the pounding piece can pass through the avoidance channel, and the pounding end can act on the material at the cutting opening. Through the action of the pounding end, the cut material is effectively separated from the cutting piece 10, avoiding the situation that the material is adhered to the cutting opening and is difficult to separate, ensuring the separation effect of the material, avoiding the situation that the cutting part of the material is damaged during the separation process, and thus effectively ensuring the cutting and sampling quality of the material by the cutter structure. Therefore, the cutter structure provided in this embodiment can solve the technical problem that the cutting and sampling effect of the cutter in the prior art is poor.

[0047] Specifically, the material is a vulcanized rubber sample cut out in the sample preparation process of testing the hysteresis loss of vulcanized rubber. In this embodiment, the cutter seat 20 is movably arranged along a preset direction, and the cutter seat 20 has a cutting position and an avoidance position. The cutter structure also includes a mounting member 30, on which a movable channel extending along a preset direction is provided, the outer shape of the cutting piece 10 is adapted to the shape of the movable channel, and at least part of the cutting piece 10 is movably arranged in the movable channel. Among them, when the cutter seat 20 is in the cutting position, the cutting opening extends out of the movable channel; when the cutter seat 20 is in the avoidance position, the cutting opening is located in the movable channel. With such a structural arrangement, the cutting piece 10 can be driven by the cutter seat 20 to move in a direction close to or away from the material. At the same time, a movable channel is provided in the mounting member 30. When cutting is required, the cutting seat 20 is in the cutting position, and the cutting opening of the cutting piece 10 can extend out of the movable channel for cutting; when cutting is not required, the cutting seat 20 is in the avoidance position. At this time, the cutting opening of the cutting piece 10 is located in the movable channel and is not exposed to the outside, thereby avoiding the possibility of damage to the blade due to accidental falling, reducing the risk of injury during use, and effectively improving the safety of production operations.

[0048] Specifically, when the cutting piece 10 is mounted on the cutting seat 20, the cutting piece 10 is fixed relative to the cutting seat. The cutting seat 20 drives at least a portion of the cutting piece 10 to be movably disposed in the movable channel along a preset direction.

[0049] Specifically, in order to prevent the cutting piece 10 from scratching the wear mounting piece 30 , a certain gap is provided between the outer shape of the cutting piece 10 and the active channel.

[0050] Specifically, the cutter seat 20 includes a limit section 22 and a connecting section 23 connected to each other, the connecting section 23 is connected to the cutting piece 10, the shape of the connecting section 23 is adapted to the shape of the active channel, at least part of the connecting section 23 is movably arranged in the active channel, the outer edge of the limit section 22 protrudes from the outer edge of the connecting section 23, the mounting member 30 has a positioning end face 31, the positioning end face 31 is arranged around the end of the active channel, the part of the limit section 22 protruding from the connecting section 23 is arranged opposite to the positioning end face 31, and the limit section 22 is used to abut and limit with the positioning end face 31. With such a structural arrangement, the abutment and limiting between the limit section 22 and the positioning end face 31 can prevent the cutter seat 20 and the cutting piece 10 from slipping out of the active channel due to an accident during cutting, effectively ensuring the stability of the overall installation connection of the cutter structure and improving the safety of production operations.

[0051] Specifically, in order to better realize the guiding and positioning of the movable channel for the cutting seat 20, the gap between the outer shape of the connecting section 23 and the movable channel is small, and the outer shape and size of the connecting section 23 are adapted to the shape and size of the movable channel. Specifically, the gap between the outer shape of the connecting section 23 and the movable channel is smaller than the gap between the outer shape of the cutting piece 10 and the movable channel.

[0052] Specifically, the mounting member 30 also has a guide channel 32 extending in a preset direction, and the guide channel 32 is spaced apart from the movable channel; the cutting structure also includes a guide rod 40, and the guide channel 32 is adapted to the shape of the guide rod 40; one end of the guide rod 40 is connected to the limiting section 22. Among them, the other end of the guide rod 40 is movably arranged in the guide channel 32. With such a structural setting, the movement of the limiting section 22 in the direction of approaching or moving away from the mounting member 30 can be guided and positioned through the guiding cooperation between the guide channel 32 and the guide rod 40, further improving the force uniformity of the cutting member 10 during cutting, and avoiding the problems of skewness, offset, defects, etc. of the cut samples.

[0053] Specifically, the other end of the guide rod 40 is fixed in the guide channel 32, and at least part of the guide rod 40 is telescopically arranged. With such a structural arrangement, the movement of the limit section 22 in the direction of approaching or moving away from the mounting member 30 can be guided and positioned through the guiding cooperation between the guide channel 32 and the guide rod 40, thereby further improving the force uniformity of the cutting piece 10 during cutting, and avoiding the problems of skewness, deviation, defects, etc. of the cut sample.

[0054] In this embodiment, the mounting member 30 further has a first guide channel 321 extending in a preset direction, and the first guide channel 321 is spaced apart from the movable channel. The cutting structure further includes a first guide rod 41, and the first guide channel 321 is adapted to the shape of the first guide rod 41; one end of the first guide rod 41 is connected to the limiting section 22, and the other end of the first guide rod 41 is movably arranged in the first guide channel 321. The cutting structure further includes a reset member 50, which is arranged in the first guide channel 321, one end of the reset member 50 is connected or abutted with the first guide channel 321, and the other end of the reset member 50 is abutted or connected with the other end of the first guide rod 41. With such a structural arrangement, when cutting is completed, the position of the first guide rod 41 can be reset by the reset member 50, thereby driving the reset of the positions of the cutting seat 20 and the cutting member 10, thereby improving the efficiency of the cutting operation.

[0055] Specifically, the reset member 50 can be a spring, which is arranged in the first guide channel 321, one end of the spring is connected or abutted with the first guide channel 321, and the other end of the spring abuts or is connected with the other end of the first guide rod 41. With such a structural arrangement, when cutting is completed, the position of the first guide rod 41 can be reset by the elastic action of the spring, thereby driving the reset of the positions of the cutting seat 20 and the cutting piece 10, thereby improving the efficiency of the cutting operation.

[0056] Specifically, the first guide channel 321 may be a blind hole, and one end of the spring is connected or abutted against an end of the blind hole.

[0057] Specifically, the mounting member 30 also has a second guide channel 322 extending along a preset direction, and the second guide channel 322 is spaced apart from the movable channel; the second guide channel 322 has a first guide section 3221 and a second guide section 3222 connected to each other, and the inner wall surface of the first guide section 3221 protrudes from the inner wall surface of the second guide section 3222, and the connection between the first guide section 3221 and the second guide section 3222 forms a step surface. The cutting knife structure also includes a second guide rod 42, which includes a first rod segment 421 and a second rod segment 422 connected to each other, an end of the first rod segment 421 away from the second rod segment 422 is connected to the limit segment 22, the outer edge of the second rod segment 422 is protruding from the outer edge of the first rod segment 421, the first guide segment 3221 is adapted to the shape of the first rod segment 421, the second rod segment 422 is movably arranged in the second guide segment 3222, and the second rod segment 422 has a positioning surface 4221 arranged opposite to the step surface, and the positioning surface 4221 is used to abut and position with the step surface. With such a structural setting, the movable distance of the guide rod 40 can be limited by the abutment positioning between the positioning surface 4221 and the step surface, so as to avoid the guide rod 40 moving too far and falling out of the guide channel 32 under the reset action of the reset member 50, thereby effectively improving the safety and stability of the production operation.

[0058] Specifically, the first rod segment 421 may be a column, and the second rod segment 422 may be a screw, which is inserted into one end of the column away from the limiting segment 22. In this way, the production of the second guide rod 42 is more convenient without the need for additional customized molds.

[0059] Specifically, the first guide channel 321 and the second guide channel 322 are arranged at intervals. In this way, mutual interference between the first guide rod 41 and the second guide rod 42 can be avoided.

[0060] Specifically, in order to make the force on the cutting piece 10 more uniform, the first guide channel 321 and the second guide channel 322 are arranged around the periphery of the movable channel.

[0061] Specifically, in order to make the force on the cutting piece 10 more uniform, four guide channels 32 are evenly arranged around the periphery of the movable channel, and the four guide channels 32 are arranged one by one with four guide rods 40, of which two oppositely arranged guide rods 40 are first guide rods 41, and the other two oppositely arranged guide rods 40 are second guide rods 42.

[0062] Specifically, in order to better avoid friction damage between the connecting section 23 and the mounting member 30, the cutter structure further includes a wear-resistant member 60, which is arranged on the inner wall surface of the movable channel and between at least part of the connecting section 23 and the mounting member 30. Specifically, the wear-resistant member 60 is an oil-free bushing.

[0063] Specifically, in order to facilitate the replacement of the cutting piece 10 , the cutting seat 20 is detachably connected to the cutting piece 10 .

[0064] In this embodiment, the second avoidance channel 21 includes a first avoidance section 211, a second avoidance section 212 and a third avoidance section 213 which are connected in sequence; the third avoidance section 213 is arranged on a side of the second avoidance section 212 close to the connecting port, the third avoidance section 213 is adapted to the shape of at least part of the cutting piece 10, and the third avoidance section 213 is detachably connected to the cutting piece 10. In the extending direction from the second avoidance section 212 to the first avoidance section 211, the cross-sectional area of ​​the first avoidance section 211 gradually increases. With such a structural arrangement, the arrangement of the first avoidance section 211 can facilitate the ramming piece to enter the avoidance channel more quickly, thereby improving the operation efficiency.

[0065] Specifically, along the extension direction from the second avoidance section 212 to the third avoidance section 213, the cross-sectional area of ​​at least part of the third avoidance section 213 gradually increases. With such a structural arrangement, the part with the increased cross-sectional area of ​​the third avoidance section 213 can be connected to the cutting piece, thereby avoiding interference with the communication between the first avoidance channel 11 and the second avoidance channel 21.

[0066] In this embodiment, the second avoidance channel 21 includes a first avoidance section 211, a second avoidance section 212 and a third avoidance section 213 connected in sequence, the third avoidance section 213 is arranged on a side of the second avoidance section 212 close to the connecting port, and the third avoidance section 213 is adapted to the shape of at least part of the cutting piece 10; a first positioning step surface is arranged at one end of the third avoidance section 213 close to the cutting piece 10, and a second positioning step surface 12 adapted to the first positioning step surface is arranged on the cutting piece 10. The cutting piece 10 has a locking section 13 and a blade body 14 connected to each other, the locking section 13 is inserted in the third avoidance section 213 and is locked and connected with the third avoidance section 213, the second positioning step surface 12 is located at the connection between the locking section 13 and the blade body 14, and the first positioning step surface is used to abut and position with the second positioning step surface 12. With such a structural setting, the relative position of the locking section 13 with respect to the third avoidance section 213 can be positioned by the abutment positioning between the first positioning step surface and the second positioning step surface 12, thereby preventing the cutting opening of the cutting piece 10 from extending out of the movable channel for cutting due to inappropriate insertion position of the locking section 13.

[0067] Specifically, the locking section 13 and the third avoidance section 213 can be threadedly connected. The first avoidance channel 11 is arranged through the locking section 13 and the blade body 14, and a cutting opening is formed at one end of the blade body 14 away from the locking section 13. The blade body 14 has a tapered section, and along the extension direction from the locking section 13 to the blade body 14, the cross-sectional area of ​​the tapered section gradually decreases, so that the end of the tapered section forms a cutting opening for cutting and sampling. Specifically, the cutting opening is an annular opening.

[0068] The second embodiment of the utility model provides a cutting knife assembly, which includes the cutting knife structure and the pounding piece provided above, the pounding piece can be movably arranged, and the pounding piece has a pounding state and an avoidance state; when the pounding piece is in the pounding state, the pounding piece can be movably arranged in the second avoidance channel 21 of the cutting knife structure and the first avoidance channel 11 of the cutting knife structure; when the pounding piece is in the avoidance state, the pounding piece avoids the setting of the cutting knife structure. In this way, the pounding piece can pass through the second avoidance channel 21 and the first avoidance channel 11 to perform a pounding process on the cut material, so as to better separate the material from the cutting opening and ensure the integrity of the material surface.

[0069] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects: saving materials and working hours, improving detection efficiency, and avoiding the problem of cutting knife damage caused by the blade being exposed to the outside world.

[0070] 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.

[0071] 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 application. Meanwhile, 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 actual proportional relationships. 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 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.

[0072] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0073] 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.

[0074] 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.

[0075] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cutting knife structure, characterized in that: include: A cutting piece (10), wherein a first avoidance channel (11) extending along a preset direction is provided through the cutting piece (10), one end of the first avoidance channel (11) forms a cutting opening, and the other end of the first avoidance channel (11) forms a connecting opening; A cutting seat (20), the cutting seat (20) being connected to the cutting piece (10), the cutting seat (20) being provided with a second avoidance channel (21) extending along the preset direction, the second avoidance channel (21) being arranged opposite to the first avoidance channel (11), the second avoidance channel (21) being arranged on a side of the first avoidance channel (11) close to the connecting port, and the second avoidance channel (21) being connected to the first avoidance channel (11); The first avoidance channel (11) and the second avoidance channel (21) are both adapted to the shape of the pounding piece, so that the pounding end of the pounding piece acts on the material at the cutting edge after passing through the second avoidance channel (21) and the first avoidance channel (11).

2. The cutting blade structure according to claim 1, characterized in that: The cutting blade seat (20) is movably arranged along the preset direction, and the cutting blade seat (20) has a cutting position and an avoidance position; the cutting blade structure further comprises: A mounting member (30), wherein a movable channel extending along the preset direction is provided through the mounting member (30), the outer shape of the cutting member (10) is adapted to the shape of the movable channel, and at least a portion of the cutting member (10) is movably disposed in the movable channel; Wherein, when the cutting seat (20) is in the cutting position, the cutting opening extends out of the movable channel; When the cutter seat (20) is in the avoidance position, the cutting opening is located in the movable channel.

3. The cutting blade structure according to claim 2, characterized in that: The cutting seat (20) comprises a limiting section (22) and a connecting section (23) which are connected to each other. The connecting section (23) is connected to the cutting piece (10). The outer shape of the connecting section (23) is adapted to the shape of the movable channel. At least part of the connecting section (23) is movably arranged in the movable channel. The outer edge of the limiting section (22) protrudes from the outer edge of the connecting section (23). The mounting member (30) has a positioning end face (31). The positioning end face (31) is arranged around the end of the movable channel. The part of the limiting section (22) protruding from the connecting section (23) is arranged opposite to the positioning end face (31). The limiting section (22) is used to abut against the positioning end face (31) for limiting.

4. The cutting blade structure according to claim 3, characterized in that: The mounting member (30) further comprises a guide channel (32) extending along the preset direction, the guide channel (32) being spaced apart from the movable channel; the cutting structure further comprises a guide rod (40), the guide channel (32) being adapted in shape to the guide rod (40); one end of the guide rod (40) is connected to the limiting section (22); Wherein, the other end of the guide rod (40) is movably arranged in the guide channel (32); or, The other end of the guide rod (40) is fixed in the guide channel (32), and at least a portion of the guide rod (40) is telescopically arranged.

5. The cutting blade structure according to claim 3, characterized in that: The mounting member (30) further comprises a first guide channel (321) extending along the preset direction, wherein the first guide channel (321) is spaced apart from the movable channel; the cutting knife structure further comprises: A first guide rod (41), wherein the first guide channel (321) is adapted to the shape of the first guide rod (41); one end of the first guide rod (41) is connected to the limiting section (22), and the other end of the first guide rod (41) is movably disposed in the first guide channel (321); A reset member (50) is arranged in the first guide channel (321), one end of the reset member (50) is connected to or abuts against the first guide channel (321), and the other end of the reset member (50) abuts against or is connected to the other end of the first guide rod (41).

6. The cutting blade structure according to claim 5, characterized in that: The mounting member (30) further comprises a second guide channel (322) extending along the preset direction, the second guide channel (322) being spaced apart from the movable channel; the second guide channel (322) comprises a first guide section (3221) and a second guide section (3222) connected to each other, the inner side wall surface of the first guide section (3221) protruding from the inner side wall surface of the second guide section (3222), and a step surface is formed at the connection between the first guide section (3221) and the second guide section (3222); the cutting knife structure further comprises: A second guide rod (42), the second guide rod (42) comprises a first rod segment (421) and a second rod segment (422) connected to each other, one end of the first rod segment (421) away from the second rod segment (422) is connected to the limiting segment (22), the outer edge of the second rod segment (422) is arranged to protrude from the outer edge of the first rod segment (421), the first guide segment (3221) is adapted to the shape of the first rod segment (421), the second rod segment (422) is movably arranged in the second guide segment (3222), and the second rod segment (422) has a positioning surface (4221) arranged opposite to the step surface, and the positioning surface (4221) is used to abut and position with the step surface.

7. The cutting blade structure according to claim 6, characterized in that: The first guide channel (321) and the second guide channel (322) are arranged at intervals; and / or, The first guide channel (321) and the second guide channel (322) are arranged around the periphery of the movable channel; and / or, The cutting knife structure further comprises a wear-resistant part (60), wherein the wear-resistant part (60) is arranged on the inner wall surface of the movable channel, and the wear-resistant part (60) is located between at least a part of the connecting section (23) and the mounting part (30).

8. The cutting blade structure according to claim 1, characterized in that: The second avoidance channel (21) comprises a first avoidance section (211), a second avoidance section (212) and a third avoidance section (213) which are connected in sequence; the third avoidance section (213) is arranged on a side of the second avoidance section (212) close to the communication port, the third avoidance section (213) is adapted to the shape of at least a part of the cutting piece (10), and the third avoidance section (213) is detachably connected to the cutting piece (10); Wherein, along the extension direction from the second avoidance section (212) to the first avoidance section (211), the cross-sectional area of ​​the first avoidance section (211) gradually increases; and / or, Along the extension direction from the second avoidance section (212) to the third avoidance section (213), the cross-sectional area of ​​at least a portion of the third avoidance section (213) gradually increases.

9. The cutting blade structure according to claim 1, characterized in that: The second avoidance channel (21) comprises a first avoidance section (211), a second avoidance section (212) and a third avoidance section (213) which are connected in sequence, the third avoidance section (213) being arranged on a side of the second avoidance section (212) close to the connecting port, the third avoidance section (213) being adapted to the shape of at least a portion of the cutting piece (10); a first positioning step surface is arranged at one end of the third avoidance section (213) close to the cutting piece (10), and a second positioning step surface (12) adapted to the first positioning step surface is arranged on the cutting piece (10); The cutting piece (10) comprises a locking section (13) and a knife body (14) which are connected to each other; the locking section (13) is inserted into the third avoidance section (213) and is locked and connected to the third avoidance section (213); the second positioning step surface (12) is located at the connection between the locking section (13) and the knife body (14); and the first positioning step surface is used for abutting and positioning with the second positioning step surface (12).

10. A cutting knife assembly, characterized in that: include: The cutting knife structure according to any one of claims 1 to 9; A pounding piece, the pounding piece is movably arranged, and the pounding piece has a pounding state and an avoidance state; when the pounding piece is in the pounding state, the pounding piece is movably arranged in the second avoidance channel (21) of the cutter structure and the first avoidance channel (11) of the cutter structure; when the pounding piece is in the avoidance state, the pounding piece avoids the cutter structure.

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