Slitting mechanism

Abstract

The utility model discloses a slitting mechanism which comprises a rotatable cutting roller and a rotatable feeding roller, a plurality of cutting blades are axially arranged on the cutting roller at intervals, cutting grooves corresponding to the cutting blades are formed in the feeding roller, and the outer circles of the cutting blades are located in the cutting grooves. A feeding notch extending in the axial direction is formed in the outer circumference of a roller body of the feeding roller, and a discharging gap is formed between the roller body and the cutting roller. The feeding roller has the advantages that the feeding notch is formed in the feeding roller, in the rotating process of the feeding roller, materials can be continuously fed to the cutting blade through the feeding notch, and then the cutting efficiency and the cutting rate of the materials are improved.

Description

Technical Field

[0001] The utility model relates to the strip cutting of orange peels, in particular to a strip cutting mechanism. Background Art

[0002] Orange peel, with a sweet and bitter taste but the fragrance of oranges, is the dried peel of the fruit citrus. Such peel can be stored for a long time under dry conditions, so it is called tangerine peel.

[0003] Orange peel has medical value, specifically with the following medicinal effects: preventing motion sickness, treating chilblains, treating chronic bronchitis, treating coughs, treating mastitis, treating stomach cold and vomiting, treating wind-cold colds, and quenching fire when soaked in water, etc.

[0004] Therefore, orange peels are mostly dried and stored. However, the sizes of the peeled orange peels are different, which is extremely inconvenient to use. After long-term research, the inventor cuts the orange peels into pieces of similar sizes for easier use. However, when cutting the orange peels into pieces, it is necessary to first cut the orange peels into strips. However, most of the existing strip cutters use two circular cutting rollers for cutting. For example, in a Chinese patent: A strip cutter with adjustable blades (Publication No.: CN221583843U), although it can cut orange peels into strips, its cutting efficiency is low. The main reason is that the orange peels are light. When cutting, some orange peels will be bounced off after encountering the blades, and the orange peels are mainly fed by their gravity and the drive of the round rollers, resulting in low cutting efficiency of the orange peels. Content of the Utility Model

[0005] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a strip cutting mechanism. By providing a feeding notch on the feeding roller, during the rotation of the feeding roller, the feeding notch can continuously feed the material to the cutting blade, thereby improving the cutting efficiency and cutting rate of the material. The purpose of the present utility model is achieved through the following technical solutions: A strip cutting mechanism includes a rotatable cutting roller and a rotatable feeding roller. A plurality of cutting blades are axially spaced on the cutting roller. A cutting groove corresponding to the cutting blade is provided on the feeding roller, and the outer circle of the cutting blade is located in the cutting groove. Thus, during the circumferential rotation of the cutting blade, the material can be cut. A feeding notch extending axially is provided on the outer circumference of the roller body of the feeding roller. During the rotation of the feeding roller, the feeding notch can continuously feed the material to the cutting blade, thereby improving the cutting efficiency and cutting rate of the material. There is a blanking gap between the roller body and the cutting roller. After the material is cut into strips, the strip-shaped material falls from the blanking gap. Moreover, when the feeding notch rotates from the cutting area to the bottom of the feeding roller, it can also play a certain role in guiding the strip-shaped material, thereby facilitating the blanking of the material. Optionally, the cutting roller includes a cutting rotating shaft. A plurality of backing plates are installed on the cutting rotating shaft. A cutting blade is provided between two adjacent backing plates. The cutting blade, the gasket and the cutting rotating shaft are all installed through flat keys, thereby ensuring the synchronous rotation of the cutting blade, the backing plate and the cutting rotating shaft. The backing plate and the cutting blade are locked by first locking nuts arranged at both axial ends of the cutting rotating shaft. By locking with the first nuts, the axial positions of the backing plate and the cutting blade are ensured, facilitating the reliable operation of the cutting blade. The backing plate determines the distance between two cutting blades, and thus determines the cutting width of the material. The gap between the outer circle where the roller body is located and the outer circle where the backing plate is located forms the blanking gap. Through the blanking gap, not only the blanking efficiency of the material is improved, providing space for the falling of the material, but also interference between the feeding roller and the backing plate is avoided.

[0006] Optionally, the circumferential trajectory formed by the rotation of the cutting blade and the circumferential trajectory formed by the bottom of the cutting groove are mutually circumscribed circles, thereby improving the cutting quality of the material and enabling the material to be completely cut.

[0007] Optionally, the feeding notch has a pressing surface and a feeding surface with an included angle. Taking the rotation direction of the feeding roller as the front, the pressing surface is located behind the feeding surface.

[0008] Optionally, the bottom of the feeding notch is located on the circumferential trajectory formed by the bottom of the cutting groove, so that while feeding, the cutting blade can completely cut the material in the feeding notch.

[0009] Optionally, the feeding roller further includes a feeding rotating shaft. The roller body is mounted on the feeding rotating shaft and is locked by second locking nuts installed at both axial ends of the feeding rotating shaft. A flat key is provided between the roller body and the feeding rotating shaft to ensure synchronous rotation of the roller body and the feeding rotating shaft. Locking by the second locking nuts ensures the circumferential position of the roller body, thereby avoiding the phenomenon of cutter breakage and ensuring reliable cutting of the cutting blade.

[0010] Optionally, the cutting roller and the feeding roller are both rotatably mounted in the machine case. A comb tooth plate is also mounted in the machine case. The comb tooth plate is located outside the blanking interval, and the comb teeth of the comb tooth plate are located between two adjacent cutting blades. By blocking the strip-shaped material with the comb tooth plate, it is ensured that all the strip-shaped materials fall into the blanking area below the blanking gap.

[0011] Optionally, an axially extending mounting seat is mounted in the machine case. The mounting seat is located below the cutting roller. Screw holes are provided on the axial end faces at both ends of the mounting seat. The mounting seat is locked with the side wall of the machine case by locking screws, and the comb tooth plate is mounted on the mounting seat. The comb tooth plate and the mounting seat are mounted by locking screws. The comb tooth plate is composed of multiple segments spliced together, which is convenient for processing the comb tooth plate.

[0012] Optionally, an avoidance inclined surface is provided on the outer side surface of the top of the comb tooth plate. The avoidance inclined surface gradually moves away from the cutting roller from top to bottom, thereby avoiding contact between the backing plate and the comb tooth plate. At the same time, by setting the avoidance inclined surface, a pointed part is formed at the top of the comb tooth plate, and thus the top of the comb tooth plate can be made as close as possible to the outer circumference of the backing plate, so as to ensure that the comb tooth plate can block all the strip-shaped materials into the blanking area. Optionally, in the axial projection plane, the feeding notch is a right-angled groove, which is convenient for processing the feeding notch. The foot of the perpendicular of the feeding notch is located on the circumference where the cutting groove is located. There are several feeding notches, and several feeding notches are evenly distributed on the same circumference, thereby improving the feeding efficiency of the material and thus improving the cutting efficiency of the material.

[0013] Optionally, a driving device is connected to the power output end of the cutting rotating shaft of the cutting roller. A driving gear is provided at the other end of the cutting rotating shaft. A driven gear meshing with the driving gear is provided on the feeding rotating shaft of the feeding roller, and the transmission ratio of the driving gear to the driven gear is greater than 1. Therefore, the rotation speed of the feeding roller is greater than that of the cutting roller, further improving the feeding efficiency of the material and thus improving the cutting efficiency of the material.

[0014] Optionally, both ends of the feeding rotating shaft are rotatably mounted on the chassis through bearing seats. A sliding groove is formed on the chassis, and the bearing seats are slidably mounted in the sliding groove. A screw adjusting device for adjusting the position of the bearing seats is also installed in the sliding groove. Through the screw adjusting device, the position of the bearing seats can be adjusted, thereby ensuring the reliability of the installation of the feeding roller. The position of the feeding roller is finely adjusted through the screw adjusting device, thereby ensuring the relative position of the feeding roller and the cutting roller, and thus ensuring the reliability of material cutting.

[0015] Optionally, the screw adjusting device includes a fixing plate, a pressing screw, a tensioning screw and a fastening nut. The fixing plate is fixedly installed in the sliding groove. A threaded through hole for threaded engagement with the pressing screw is formed on the fixing plate. A counterboring hole corresponding to the pressing screw is formed on the outer side wall of the bearing seat. One end of the pressing screw passes through the threaded through hole and abuts against the counterboring hole. A fastening nut is also installed on the pressing screw between the head of the pressing screw and the fixing plate. A through hole for the tensioning screw to pass through is also formed on the fixing plate. A screw hole corresponding to the tensioning screw is formed on the outer side wall of the bearing seat. One end of the tensioning screw passes through the through hole and is locked with the screw hole. A fastening nut is also installed on the tensioning screw between the head of the tensioning screw and the fixing plate. During use, first install the pressing screw. By rotating the pressing screw, the feeding roller is moved towards the cutting roller. When the cutting blade contacts the cutting groove, it indicates that the feeding roller has moved in place. At this time, the cutting blade has completed the tool setting. Then lock the corresponding fastening nut to ensure the stable position of the pressing screw. Then lock the tensioning screw with the screw hole and lock the corresponding fastening nut. Thus, the bearing seat is pulled by the tensioning screw. Therefore, through the dual action of the tensioning screw and the pressing screw, the installation of the feeding roller is realized, and at the same time, the relative position of the feeding roller is ensured to be stable, thereby improving the reliability of material cutting.

[0016] The present utility model has the following advantages: In the strip cutting mechanism of the present utility model, feeding notches are provided on the feeding roller. During the rotation of the feeding roller, the material can be continuously fed to the cutting blade through the feeding notches, thereby improving the cutting efficiency and cutting rate of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the present utility model Figure 1 ;

[0018] Figure 2 is a schematic structural view of the present utility model Figure 2 ;

[0019] Figure 3 is a schematic view of the relative position of the cutting roller and the feeding roller Figure 1 ;

[0020] Figure 4Schematic diagram of the relative positions of the cutting roller and the feeding roller Figure 2 ;

[0021] Figure 5 is Figure 4 the sectional view schematic diagram of A-A in

[0022] Figure 6 is Figure 4 the sectional view schematic diagram of B-B in

[0023] Figure 7 Schematic diagram of the relative positions of the comb tooth plate and the cutting roller

[0024] Figure 8 Schematic diagram of the structure of the comb tooth plate within the gap between the cutting blades

[0025] Figure 9 Schematic diagram of the installation of the comb tooth plate and the mounting seat

[0026] In the figure, 1 - chassis, 2 - cutting roller, 3 - feeding roller, 4 - comb tooth plate, 5 - mounting seat, 21 - cutting blade, 22 - backing plate, 23 - first locking nut, 24 - cutting rotating shaft, 31 - feeding notch, 32 - cutting groove, 33 - feeding rotating shaft, 34 - roller body, 35 - second locking nut, 41 - avoiding inclined plane. Detailed implementation manners

[0027] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the detailed description of the embodiments of the present utility model provided in the drawings below is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0030] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] As Figure 1 shown, a strip cutting mechanism, as Figure 1 and Figure 2 shown, includes a rotatable cutting roller 2 and a rotatable feeding roller 3. As Figure 3 and Figure 4 shown, a plurality of cutting blades 21 are axially spaced on the cutting roller 2, and cutting grooves 32 corresponding to the cutting blades 21 are provided on the feeding roller 3, and the outer circle of the cutting blade 21 is located in the cutting groove 32. Thus, during the circumferential rotation of the cutting blade 21, the material can be cut. As Figure 5 and Figure 6 shown, a feeding notch 31 extending axially is provided on the outer circumference of the roller body 34 of the feeding roller 3. During the rotation of the feeding roller 3, the material can be continuously fed to the cutting blade 21 through the feeding notch 31, thereby improving the cutting efficiency and cutting rate of the material. There is a blanking gap between the roller body 34 and the cutting roller 2. As Figure 5 at C in

[0034] After the material is cut into strips, the strip-shaped material falls from the blanking gap. Moreover, when the feeding notch 31 rotates from the cutting area to the bottom of the feeding roller 3, it can also play a certain role in carrying the strip-shaped material, thereby facilitating the blanking of the material. Figure 3 and Figure 4As shown, the cutting roller 2 includes a cutting rotating shaft 24, and a plurality of backing plates 22 are installed on the cutting rotating shaft 24. A cutting blade 21 is arranged between two adjacent backing plates 22. The cutting blade 21, the spacer and the cutting rotating shaft 24 are all installed through flat keys, so as to ensure the synchronous rotation of the cutting blade 21, the backing plate 22 and the cutting rotating shaft 24. The backing plate 22 and the cutting blade 21 are locked by first locking nuts 23 arranged at both axial ends of the cutting rotating shaft 24. By locking with the first nuts, the axial positions of the backing plate 22 and the cutting blade 21 are ensured, which is convenient for the reliable operation of the cutting blade 21. The backing plate 22 determines the distance between two cutting blades 21, and thus determines the cutting width of the material. The gap between the outer circle where the roller body 34 is located and the outer circle where the backing plate 22 is located forms a blanking gap. Through the blanking gap, not only the blanking efficiency of the material is improved, providing space for the dropping of the material, but also the interference between the feeding roller 3 and the backing plate 22 is avoided.

[0035] In this embodiment, as Figure 6 shown, the circumferential trajectory formed by the rotation of the cutting blade 21 and the circumferential trajectory formed by the bottom of the cutting groove 32 are mutually circumscribed circles, thereby improving the cutting quality of the material and enabling the material to be completely cut.

[0036] In this embodiment, as Figure 5 shown, the feeding notch 31 has a pressing surface 311 and a feeding surface 312 with an included angle. Taking the rotation direction of the feeding roller 3 as the front, the pressing surface 311 is located behind the feeding surface 312. During the rotation of the feeding roller 3, the feeding surface 312 approaches the cutting blade 21, and the material in the feeding notch 31 slides along the feeding surface 312 into the cutting area. When the material contacts the cutting blade 21, part of the material will be bounced off by the cutting blade 21. However, as the pressing surface 311 approaches the cutting blade 21 again, the pressing surface 311 plays a restricting role on the material, and the pressing surface 311 applies pressure to the material, forcing the material to contact the cutting blade 21, thereby realizing the cutting of the material. For the cut material, when the feeding surface 312 rotates to the blanking area, the feeding surface 312 is inclined downward, which is convenient for the strip-shaped material on the feeding surface 312 to fall into the blanking area.

[0037] In this embodiment, as Figure 5 shown, the bottom of the feeding notch 31 is located on the circumferential trajectory formed by the bottom of the cutting groove 32, so that while feeding, the cutting blade 21 can also ensure that the material in the feeding notch 31 is completely cut.

[0038] In this embodiment, as Figure 3 and Figure 4As shown, the feeding roller 3 further includes a feeding rotating shaft 33. The roller body 34 is installed on the feeding rotating shaft 33, and the roller body 34 is locked by second locking nuts 35 installed at both axial ends of the feeding rotating shaft 33. A flat key is provided between the roller body 34 and the feeding rotating shaft 33 to ensure the synchronous rotation of the roller body 34 and the feeding rotating shaft 33. By locking with the second locking nuts 35, the circumferential position of the roller body 34 is ensured, thereby avoiding the phenomenon of cutter breakage and ensuring the reliable cutting of the cutting blade 21.

[0039] In this embodiment, as Figure 1 and Figure 2 shown, the cutting roller 2 and the feeding roller 3 are both rotatably installed in the chassis 1. A comb-shaped plate 4 is also installed in the chassis 1. The comb-shaped plate 4 is located outside the blanking interval, and the teeth of the comb-shaped plate 4 are located between two adjacent cutting blades 21. By resisting the strip-shaped material with the comb-shaped plate 4, it is ensured that all the strip-shaped materials fall into the blanking area below the blanking gap.

[0040] In this embodiment, as Figure 7 and Figure 8 shown, an axially extending mounting seat 5 is installed in the chassis 1. The mounting seat 5 is located below the cutting roller 2. The mounting seat 5 is a rectangular column. Screw holes are provided on both axial end faces of the mounting seat 5, and the mounting seat 5 is locked with the side wall of the chassis 1 by locking screws. As Figure 9 shown, the comb-shaped plate 4 is installed on the mounting seat 5. The comb-shaped plate 4 and the mounting seat 5 are installed by locking screws. Preferably, countersunk screw holes are provided on the mounting seat 5, and then the comb-shaped plate 4 is installed on the mounting seat 5 by countersunk screws. Since the cutting area of this strip cutting mechanism is relatively long, the comb-shaped plate 4 is also relatively long, which increases the processing difficulty of the comb-shaped plate 4. Therefore, in this embodiment, the comb-shaped plate 4 has a multi-segment structure. During processing, it is processed in segments and then installed on the mounting seat 5, and then spliced into a comb-shaped plate 4 that meets the usage requirements.

[0041] In this embodiment, as Figure 8 and Figure 9 shown, an avoidance inclined surface 41 is provided on the outer side surface of the top of the comb-shaped plate 4. The avoidance inclined surface 41 gradually moves away from the cutting roller 2 from top to bottom, thereby avoiding the contact between the backing plate 22 and the comb-shaped plate 4. At the same time, by setting the avoidance inclined surface 41, a pointed part is formed at the top of the comb-shaped plate 4, and thus it can be ensured that the top of the comb-shaped plate 4 is as close as possible to the outer circumference of the backing plate 22, and further ensure that the comb-shaped plate 4 can block all the strip-shaped materials into the blanking area.

[0042] In this embodiment, as Figure 5As shown in the figure, on the axial projection plane, the feeding notch 31 is a right-angled groove, which makes the feeding notch 31 easy to process. The foot of the perpendicular of the feeding notch 31 is located on the circumference where the cutting groove 32 is located. There are several feeding notches 31, and the several feeding notches 31 are evenly distributed on the same circumference, thereby improving the feeding efficiency of the material and thus improving the cutting efficiency of the material.

[0043] In this embodiment, as Figure 2 shown, a driving device is connected to the power output end of the cutting rotating shaft 24 of the cutting roller 2. Preferably, the driving device includes a driving motor. The driving motor and the cutting rotating shaft 24 are connected by chain drive or belt drive. A driving gear is provided at the other end of the cutting rotating shaft 24, and a driven gear meshing with the driving gear is provided on the feeding rotating shaft 33 of the feeding roller 3. And the transmission ratio of the driving gear to the driven gear is greater than 1. Therefore, the rotation speed of the feeding roller 3 is greater than that of the cutting roller 2, further improving the feeding efficiency of the material and thus improving the cutting efficiency of the material.

[0044] In this embodiment, as Figure 1 and Figure 2 shown, both ends of the feeding rotating shaft 33 are rotatably installed on the chassis 1 through bearing seats. A sliding groove is formed on the chassis 1, and the bearing seats are slidably installed in the sliding groove. And a screw adjusting device for adjusting the position of the bearing seat is also installed in the sliding groove. Through the screw adjusting device, the position of the bearing seat can be adjusted, thereby ensuring the reliability of the installation of the feeding roller 3. The position of the feeding roller 3 is finely adjusted through the screw adjusting device, thereby ensuring the relative position of the feeding roller 3 and the cutting roller 2, and thus ensuring the reliability of material cutting.

[0045] In this embodiment, the screw adjusting device includes a fixing plate, a pressing screw, a tensioning screw and a fastening nut. The fixing plate is fixedly installed in the sliding groove. Optionally, the fixing plate and the sliding groove can be welded or clamped. When clamping, clamping grooves can be opened on the upper and lower side walls of the sliding groove, and the upper and lower ends of the fixing plate can be clamped in the corresponding clamping grooves. Of course, in actual process, if a sliding groove is opened on the chassis 1, a thin block is formed on the chassis 1, and this thin block can also be used as the fixing plate. A threaded through hole for threaded engagement with the pressing screw is opened on the fixing plate. A butting blind hole corresponding to the pressing screw is opened on the outer side wall of the bearing seat. One end of the pressing screw passes through the threaded through hole and abuts against the butting blind hole. A fastening nut is also installed on the pressing screw between the head of the pressing screw and the fixing plate. A through hole for the tensioning screw to pass through is also opened on the fixing plate. A screw hole corresponding to the tensioning screw is opened on the outer side wall of the bearing seat. One end of the tensioning screw passes through the through hole and is locked with the screw hole. A fastening nut is also installed on the tensioning screw between the head of the tensioning screw and the fixing plate. During use, first install the pressing screw, and by rotating the pressing screw, the feeding roller 3 is moved towards the cutting roller 2. When the cutting blade 21 contacts the cutting groove 32, it indicates that the feeding roller 3 has moved in place. At this time, the cutting blade 21 has completed the tool setting. Then lock the corresponding fastening nut to ensure the stable position of the pressing screw. Then lock the tensioning screw with the screw hole and lock the corresponding fastening nut. Thus, the bearing seat is pulled by the tensioning screw. Therefore, through the dual action of the tensioning screw and the pressing screw, the installation of the feeding roller 3 is realized, and at the same time, the relative position of the feeding roller 3 is ensured to be stable, thereby improving the reliability of material cutting. Preferably, there are two tensioning screws, which are respectively located on the upper and lower sides of the pressing screw.

[0046] Taking the cutting of orange peel as an example, the working process of the present invention will be described. The orange peel is placed between the cutting roller 2 and the feeding roller 3. Most of the orange peel enters the feeding notch 31. As the feeding roller 3 rotates, the orange peel in the feeding notch 31 gradually approaches the cutting blade 21 and is finally cut by the cutting blade 21. Moreover, during the rotation of the feeding notch 31, it also has a pressing function, that is, pressing the orange peel to ensure the cutting efficiency of the orange peel. The cut orange peel is strip-shaped, and the maximum width does not exceed the width between two adjacent cutting blades 21. The strip-shaped orange peel falls into the blanking area from the blanking gap. And during the blanking process of the strip-shaped orange peel, through the blocking action of the comb tooth plate 4, it can also ensure that the orange peel completely falls into the blanking area.

[0047] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A strip cutting mechanism, characterized in that: It includes a rotatable cutting roller and a rotatable feeding roller. A number of cutting blades are axially spaced on the cutting roller. Cutting grooves corresponding to the cutting blades are formed on the feeding roller, and the outer circle of the cutting blade is located in the cutting groove. A feeding notch extending axially is formed on the outer circumference of the roller body of the feeding roller, and a blanking gap is provided between the roller body and the cutting roller.

2. The strip cutting mechanism according to claim 1, characterized in that: The cutting roller includes a cutting rotating shaft. A number of backing plates are installed on the cutting rotating shaft. One cutting blade is arranged between two adjacent backing plates. The backing plate and the cutting blade are locked by first locking nuts arranged at both axial ends of the cutting rotating shaft. The gap between the outer circle where the roller body is located and the outer circle where the backing plate is located forms the blanking gap.

3. The strip cutting mechanism according to claim 1, characterized in that: The circumferential trajectory formed by the rotation of the cutting blade and the circumferential trajectory formed by the bottom of the cutting groove are mutually circumscribed circles.

4. A strip cutting mechanism according to claim 1, characterized in that: The feeding notch has a pressing surface and a feeding surface with an included angle. Taking the rotation direction of the feeding roller as the front, the pressing surface is located behind the feeding surface.

5. The strip cutting mechanism according to claim 1, wherein: The bottom of the feeding notch is located on the circumferential trajectory formed by the bottom of the cutting groove.

6. A strip cutting mechanism according to any one of claims 1 to 5, characterized in that: The feeding roller further includes a feeding rotating shaft. The roller body is installed on the feeding rotating shaft, and the roller body is locked by second locking nuts arranged at both axial ends of the feeding rotating shaft.

7. A strip cutting mechanism according to any one of claims 1 to 5, characterized in that: The cutting roller and the feeding roller are both rotatably installed in the machine case. A comb plate is also installed in the machine case. The comb plate is located outside the blanking interval, and the teeth of the comb plate are located between two adjacent cutting blades.

8. The strip cutting mechanism according to claim 7, wherein: An axially extending mounting seat is installed in the machine case. The mounting seat is located below the cutting roller, and the comb plate is installed on the mounting seat.

9. The strip cutting mechanism according to claim 7, characterized in that: An avoidance inclined surface is formed on the outer side surface of the top of the comb plate. The avoidance inclined surface gradually moves away from the cutting roller from top to bottom.

10. A strip cutting mechanism according to claim 4, characterized in that: In the axial projection plane, the feeding notch is a right-angled groove, and the pressing surface extends along the radial direction of the feeding roller. The foot of the perpendicular of the feeding notch is located on the circle where the cutting groove is located. There are a number of feeding notches, and the number of feeding notches are evenly distributed on the same circle.

11. A strip cutting mechanism according to any one of claims 1 to 5, characterized in that: The power output end of the cutting rotating shaft of the cutting roller is connected with a driving device. A driving gear is arranged at the other end of the cutting rotating shaft. A driven gear meshing with the driving gear is arranged on the feeding rotating shaft of the feeding roller, and the transmission ratio of the driving gear to the driven gear is greater than 1.

12. A strip cutting mechanism according to claim 11, characterized in that: Both ends of the feeding rotating shaft are rotatably installed on the machine case through bearing seats. A sliding groove is formed on the machine case. The bearing seats are slidably installed in the sliding groove, and a screw adjusting device for adjusting the position of the bearing seats is also installed in the sliding groove.

13. A strip cutting mechanism according to claim 12, characterized in that: The screw adjusting device includes a fixed plate, a pressing screw, a tensioning screw and a fastening nut. The fixed plate is fixedly installed in the sliding groove. A threaded through hole for threaded engagement with the pressing screw is formed in the fixed plate. A counterboring blind hole corresponding to the pressing screw is formed in the outer side wall of the bearing seat. One end of the pressing screw passes through the threaded through hole and abuts against the counterboring blind hole. A fastening nut is further installed on the pressing screw between the head of the pressing screw and the fixed plate. A through hole for the tensioning screw to pass through is also formed in the fixed plate. A screw hole corresponding to the tensioning screw is formed in the outer side wall of the bearing seat. One end of the tensioning screw passes through the through hole and is locked with the screw hole, and a fastening nut is also installed on the tensioning screw between the head of the tensioning screw and the fixed plate.

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