Dicing mechanism and dicing device

Abstract

The utility model discloses a dicing mechanism and a dicing device, and belongs to the technical field of cutting, the dicing mechanism comprises a fixed cutter which is fixedly installed and a cutter roller which does rotary motion, the cutter roller is provided with a movable cutter which extends along the axial direction, the cutter roller is further provided with a discharging groove which corresponds to the movable cutter, the dicing mechanism further comprises a feeding piece which feeds materials to a feeding area of the cutter roller, and the feeding piece is connected with the feeding area of the cutter roller by taking the rotating direction of the cutter roller as the front. The feeding part is located above the knife roll, the fixed knife is located on the front side of an outlet of the feeding part, a movable knife blade of the movable knife faces the fixed knife, and the shortest distance between the fixed knife blade of the fixed knife and the circumference where the movable knife blade of the movable knife is located is smaller than the thickness of materials. The feeding device has the advantages that materials are fed into the feeding piece, the materials make contact with the knife roll under the action of gravity, thrust is applied to the materials through rotation of the knife roll, then the materials move towards the fixed knife, meanwhile, in the moving process, the front ends of part of the materials enter the discharging groove, and the fixed knife is matched with the knife roll, so that the materials are discharged out of the discharging groove. Therefore, the materials are cut into blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a cutting mechanism and a cutting device. Background Art

[0002] Orange peels are mostly stored after being dried, but the peeled orange peels are of different sizes, which is extremely inconvenient to use. Therefore, the orange peels need to be cut into small pieces. However, since fresh orange peels are soft, although the hardness requirements for the knife are low, how to cut the soft orange peels into pieces has become a major problem in orange peel cutting.

[0003] After long-term research, the inventor proposed a cutting mechanism by observing the peeled orange peel and checking the changes of the orange peel when the knife contacts the orange peel at a low speed. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a cutting mechanism and a cutting device.

[0005] The purpose of the utility model is achieved through the following technical solutions: a cutting mechanism, including a fixed knife and a rotary knife roller, during the rotation of the knife roller, the knife roller and the fixed knife cooperate to cut the material; a moving knife blade extending along the axial direction is provided on the knife roller, and the knife roller is also provided with a discharge groove corresponding to the moving knife blade. During processing, a discharge groove is provided on the knife roller, and a moving knife blade is formed between two discharge grooves. The rear end notch of the discharge groove and the outer circumference of the knife roller form a moving knife edge, and the portion between two adjacent discharge grooves forms a moving knife back, and the thickness of the back is in the radial direction. The material gradually thickens from the outside to the inside in the direction of rotation, thereby ensuring the service life of the moving knife. The cutting mechanism also includes a feeding piece for feeding the feeding area of ​​the knife roller. With the rotation direction of the knife roller as the front, the feeding piece is located above the knife roller, and the area where the knife roller is located below the feeding piece is the feeding area. The fixed knife is located in front of the outlet of the feeding piece, and the moving knife blade of the moving knife faces the fixed knife, and the shortest distance between the fixed knife blade of the fixed knife and the moving knife blade of the moving knife is less than the thickness of the material. Therefore, when the moving knife blade and the fixed knife blade are at the shortest distance, the material is cut and then made into blocks.

[0006] Optionally, the feeding piece has a U-shaped plate, which is mounted on the fixed knife, and a feeding trough is formed between the U-shaped plate and the fixed knife, and the material is accumulated in the feeding trough, and the material falls into the feeding area of ​​the knife roller under the action of gravity, and the knife roller can exert a thrust on the material during the rotation process, so that the material moves toward the fixed knife, and most of the material falls directly into the discharge trough during the falling process. At this time, the knife roller can easily transport the material between the moving knife blade and the fixed knife blade, thereby realizing the cutting of the material, while the end of a small part of the material cannot fall into the discharge trough, and the end of this part of the material is in contact with the fixed knife as the knife roller rotates. The rear side wall of the fixed knife contacts the material, and the rear side wall of the fixed knife acts as a resistance surface to block the material. As the knife roller continuously applies thrust to the material, the material is soft and will arch. The arched material has a certain elastic restoring force, and the front end of the material tends to insert into the knife roller under the action of the elastic restoring force. Therefore, when the front end of the material is just aligned with the discharge chute, the front end of the material will be inserted into the discharge chute, thereby completing the cutting of the material. The cut material is located in the discharge chute, and falls out of the discharge chute as the knife roller rotates, thereby avoiding the accumulation of block material in the discharge chute and affecting the cutting of the material.

[0007] Optionally, there is a gap between the bottom of the feed trough and the circumference of the fixed knife blade. Furthermore, the height of the gap is greater than the thickness of the material. Preferably, the height of the gap is 1.5-2.5 times greater than the thickness of the material, thereby avoiding interference between the fixed knife blade and the feed trough. At the same time, by adjusting the gap, it can also ensure that the bottom layer of material is separated from the feed trough and can contact the knife roller, thereby ensuring the reliability of material cutting.

[0008] Optionally, a material baffle plate extending axially is also provided at the rear bottom of the U-shaped plate. When the movable knife contacts the material, the material baffle plate can block the material to prevent the material from popping out from the rear side of the feeding trough, so that the material can only move in the direction of the fixed knife, thereby ensuring the cutting rate of the material.

[0009] Optionally, the front end surfaces of the two side walls of the U-shaped plate are provided with outwardly folded wing plates, and the wing plates are detachably connected to the fixed knife, thereby facilitating the disassembly of the feeding piece.

[0010] Optionally, a retreat slope is provided at the bottom of the fixed knife, and the shortest distance between the retreat slope and the circumference of the fixed knife blade gradually increases from back to front, thereby ensuring that the moving knife blade does not contact the fixed knife, thereby ensuring the reliability of the knife roller.

[0011] A dicing device comprises a chassis, a material receiving box and the above-mentioned dicing mechanism, wherein the material receiving box is provided with an open slot, a knife roller of the dicing mechanism is located in the material receiving box, and the dicing areas of the knife roller and the fixed knife are located at the open slot, the material receiving box and the dicing mechanism are both located in the chassis, and both ends of the knife roller are rotatably mounted on the chassis, and the fixed knife is fixedly mounted in the chassis.

[0012] Optionally, a mounting base is installed in the chassis, and the fixed knife is detachably mounted on the mounting base. Screw holes are provided at both axial ends of the mounting base. The mounting base and the side wall of the chassis are locked by locking screws, and the fixed knife and the mounting base are also detachably mounted using locking screws.

[0013] Optionally, bearing seats are provided at both ends of the knife roller, and sliding grooves are provided on the axial side walls of the chassis, the sliding grooves extend in the front and rear directions, the bearing seats are slidably installed in the sliding grooves, and a screw adjustment device is installed in the sliding grooves. The position of the bearing seat in the sliding groove can be adjusted through the screw adjustment device, and then the minimum distance between the fixed knife blade and the moving knife blade can be adjusted. When the moving knife is worn after long-term use, the moving knife needs to be polished to ensure the sharpness of the moving knife blade. Of course, after the fixed knife blade is worn, the fixed knife blade also needs to be polished. After polishing the fixed knife blade and the moving knife blade, the distance between the fixed knife blade and the moving knife blade will change, thereby affecting the cutting of the material. At this time, the screw adjustment device is required to adjust the position of the knife roller, so that the minimum distance between the fixed knife blade and the moving knife blade meets the requirements, thereby ensuring the reliability of material cutting.

[0014] Optionally, the screw adjustment 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 matching the thread of the pressing screw is provided on the fixing plate. A contact blind hole corresponding to the pressing screw is provided on the outer wall of the bearing seat. One end of the pressing screw passes through the threaded through hole and abuts against the contact 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 through which the tensioning screw passes is also provided on the fixing plate. A screw hole corresponding to the tensioning screw is opened and closed on the outer 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 fixing plate.

[0015] Optionally, the opening groove is a right-angle groove, and the cutting area of ​​the knife roller and the fixed knife is close to the vertical side wall of the opening groove.

[0016] The utility model has the following advantages: the cutting mechanism of the utility model feeds materials into the feeding piece, the materials contact the knife roller under the action of gravity, and then the knife roller rotates to apply thrust to the materials, thereby making the materials move toward the fixed knife, and at the same time, during the movement, the front end of part of the materials enters the discharge chute, and then the fixed knife and the knife roller cooperate to cut the materials into blocks, and the remaining materials can be blocked by the abutment surface of the fixed knife, and the remaining materials can enter the subsequent discharge chute, thereby cutting the materials into several blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the cutting mechanism;

[0018] Figure 2 It is a structural schematic diagram of the feeding part;

[0019] Figure 3 for Figure 1 The enlarged schematic diagram of point E in the middle;

[0020] Figure 4 is a schematic diagram of the structure of the cutting device;

[0021] Figure 5 is a cross-sectional schematic diagram of a dicing device;

[0022] Figure 6 It is a structural schematic diagram of a screw adjustment device;

[0023] In the figure, 5-mounting seat, 100-knife roller, 200-fixed knife, 300-feeding piece, 400-collecting box, 101-moving knife blade, 102-discharge chute, 201-fixed knife blade, 202-retreat slope, 203-blocking surface, 301-U-shaped plate, 302-blocking plate, 303-wing plate, 304-feeding chute, 305-arc surface, 51-fixing plate, 52-fastening nut, 53-top pressure screw, 54-tensioning screw. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 4 and Figure 5As shown, a slicing device includes a chassis, a material receiving box 400 and a slicing mechanism. The material receiving box 400 has an open slot. The knife roller 100 of the slicing mechanism is located in the material receiving box 400. The knife roller 100 can be put into the material receiving box 400 through the open slot, and the two ends of the shaft of the knife roller 100 pass through the material receiving box 400. The slicing area of ​​the knife roller 100 and the fixed knife 200 is located at the open slot. In this embodiment, the cutting area of ​​the knife roller 100 and the fixed knife 200 is in the vicinity of the minimum spacing between the fixed knife blade 201 and the movable knife blade 101. The material receiving box 400 and the slicing mechanism are both located in the chassis, and the two ends of the knife roller 100 are rotatably mounted on the chassis, and the fixed knife 200 is fixedly mounted in the chassis. In this embodiment, as Figure 1 As shown, the slicing mechanism includes a fixed fixed knife 200 and a knife roller 100 that performs rotational motion. The fixed knife 200 is installed in a chassis, and the position of the fixed knife 200 relative to the chassis is fixed. Furthermore, a mounting seat 5 is installed in the chassis, and the fixed knife 200 is detachably mounted on the mounting seat 5. Screw holes are provided at both axial ends of the mounting seat 5. The mounting seat 5 and the side wall of the chassis are locked by locking screws, and the fixed knife 200 and the mounting seat 5 are also detachably mounted by locking screws.

[0031] In this embodiment, during the rotation of the knife roller 100, the knife roller 100 and the fixed knife 200 cooperate to cut the material. Figure 1 and Figure 3 As shown, the knife roller 100 is provided with a moving knife blade 101 extending in the axial direction, and the knife roller 100 is also provided with a discharge groove 102 corresponding to the moving knife blade 101. During processing, the discharge groove 102 is provided on the knife roller 100, and the moving knife blade 101 is formed between two discharge grooves 102. The rear end notch of the discharge groove 102 and the outer circumference of the knife roller 100 form the moving knife edge, and the part between two adjacent discharge grooves 102 forms the moving knife back. The thickness of the back gradually increases from the outside to the inside in the radial direction, thereby ensuring the service life of the moving knife. Figure 1 As shown, the slicing mechanism further includes a feeding member 300 for feeding into the feeding area of ​​the knife roller 100. With the rotation direction of the knife roller 100 as the front, the feeding member 300 is located above the knife roller 100, and the area where the knife roller 100 is located below the feeding member 300 is the feeding area. The fixed knife 200 is located at the front side of the outlet of the feeding member 300, and the moving knife blade 101 of the moving knife faces the fixed knife 200, and the shortest distance between the fixed knife blade 201 of the fixed knife 200 and the moving knife blade 101 of the moving knife is less than the thickness of the material. Figure 3 As shown at D in the figure, D is the shortest distance between the fixed knife blade 201 and the movable knife blade 101 of the movable knife. Therefore, when the movable knife blade 101 and the fixed knife blade 201 are at the shortest distance, the material is cut and becomes a block.

[0032] In this embodiment, if Figure 2 As shown, the feeding member 300 has a U-shaped plate 301, which is installed on the fixed knife 200, and a feeding trough 304 is formed between the U-shaped plate 301 and the fixed knife 200, and the material is accumulated in the feeding trough 304, and the material falls into the feeding area of ​​the knife roller 100 under the action of gravity, and the knife roller 100 can exert a thrust on the material during the rotation process, so that the material moves toward the fixed knife 200, and most of the material falls directly into the discharge trough 102 during the falling process. At this time, the knife roller 100 can easily transport the material to between the movable knife blade 101 and the fixed knife blade 201, thereby realizing the cutting of the material, and the end of a small part of the material cannot fall into the discharge trough 102, and this part of the material rotates with the rotation of the knife roller 100. The end of the material contacts the rear side wall of the fixed knife 200, and the rear side wall of the fixed knife 200 acts as a blocking surface 203 to block the material. As the knife roller 100 continuously applies thrust to the material, the material is soft and will be arched. The arched material has a certain elastic restoring force, and the front end of the material has a tendency to insert into the knife roller 100 under the action of the elastic restoring force. Therefore, when the front end of the material is just aligned with the discharge trough 102, the front end of the material will be inserted into the discharge trough 102, thereby completing the cutting of the material. The cut material is located in the discharge trough 102, and falls out of the discharge trough 102 as the knife roller 100 rotates, thereby preventing the block material from accumulating in the discharge trough 102 and affecting the cutting of the material.

[0033] In this embodiment, if Figure 1 As shown, there is a gap between the bottom of the feeding trough 304 and the circumference of the fixed knife blade 201. Furthermore, the height of the gap is greater than the thickness of the material. Preferably, the height of the gap is 1.5-2.5 times greater than the thickness of the material, thereby avoiding interference between the fixed knife blade 201 and the feeding trough 304. At the same time, by adjusting the gap, it can also ensure that the bottom layer of material is separated from the feeding trough 304 and can contact the knife roller 100, thereby ensuring the reliability of material cutting. Of course, in this embodiment, both axial ends of the movable knife blade 101 pass through the knife roller 100, thereby ensuring that the material in the feeding trough 304 can be cut by the knife roller 100.

[0034] In this embodiment, if Figure 2 As shown, the bottoms of the two side walls of the feeding trough 304 are arc-shaped surfaces, and the distance between the arc-shaped surfaces and the moving knife blade 101 increases from front to back. That is to say, when the material is between the feeding trough 304 and the knife roller 100, the thickness of the material at the rear side is greater than the thickness of the material at the front side, which makes it easier to push the material forward.

[0035] In this embodiment, if Figure 2As shown, a material baffle plate 302 extending axially is also provided at the rear bottom of the U-shaped plate 301. When the movable knife contacts the material, the material baffle plate 302 can block the material to prevent the material from popping out from the rear side of the feeding trough 304, so that the material can only move toward the direction of the fixed knife 200, thereby ensuring the cutting rate of the material.

[0036] In this embodiment, if Figure 2 As shown, the front end surfaces of the two side walls of the U-shaped plate 301 are provided with outwardly folded wing plates 303, and the wing plates 303 are detachably connected to the fixed knife 200, thereby facilitating the disassembly of the feeding piece 300.

[0037] In this embodiment, if Figure 3 As shown, a retreat slope 202 is provided at the bottom of the fixed knife 200. From back to front, the shortest distance between the retreat slope 202 and the circumference of the fixed knife blade 201 gradually increases, thereby ensuring that the movable knife blade 101 does not contact the fixed knife 200, thereby ensuring the reliability of the use of the knife roller 100.

[0038] In this embodiment, if Figure 6 As shown, bearing seats are provided at both ends of the knife roller 100, and sliding grooves are provided on the axial side walls of the chassis, and the sliding grooves extend along the front-rear direction. The bearing seats are slidably installed in the sliding grooves, and a screw adjustment device is installed in the sliding grooves. The position of the bearing seats in the sliding grooves can be adjusted by the screw adjustment device, and then the minimum spacing between the fixed knife blade 201 and the movable knife blade 101 can be adjusted. When the movable knife is worn after long-term use, the movable knife needs to be polished to ensure the sharpness of the movable knife blade 101. Of course, after the fixed knife blade 201 is worn, the fixed knife blade 201 also needs to be polished. After polishing the fixed knife blade 201 and the movable knife blade 101, the spacing between the fixed knife blade 201 and the movable knife blade 101 will change, thereby affecting the cutting of the material. At this time, the screw adjustment device is required to adjust the position of the knife roller 100, so that the minimum spacing between the fixed knife blade 201 and the movable knife blade 101 meets the requirements, thereby ensuring the reliability of material cutting.

[0039] In this embodiment, if Figure 6As shown, the screw adjustment device includes a fixing plate 51, a pressing screw 53, a tensioning screw 54 and a fastening nut 52. The fixing plate 51 is fixedly installed in the sliding groove. A threaded through hole is provided on the fixing plate 51 for threaded cooperation with the pressing screw 53. A contact blind hole corresponding to the pressing screw 53 is provided on the outer wall of the bearing seat. One end of the pressing screw 53 passes through the threaded through hole and abuts against the contact blind hole. A fastening nut 52 is also installed on the pressing screw 53 between the head of the pressing screw 53 and the fixing plate 51. A through hole is also provided on the fixing plate 51 for the tensioning screw 54 to pass through. A screw hole corresponding to the tensioning screw 54 is opened and closed on the outer wall of the bearing seat. One end of the tensioning screw 54 passes through the through hole and is locked with the screw hole. A fastening nut 52 is also installed on the tensioning screw 54 between the head of the tensioning screw 54 and the fixing plate 51.

[0040] In this embodiment, if Figure 4 As shown, the opening groove is a right-angle groove, and the cutting area of ​​the knife roller 100 and the fixed knife 200 is close to the vertical side wall of the opening groove.

[0041] In this embodiment, in order to improve the cutting efficiency of the material, a driving mechanism is provided on the outside of the chassis, and the driving mechanism realizes the rotation of the knife roller 100 through belt drive or chain drive.

[0042] Taking the cutting of orange peel as an example, the working process of the cutting mechanism is described in detail:

[0043] When cutting orange peels, fresh orange peels in strips are the best. The driving mechanism works to drive the knife roller 100 to rotate. After the orange peels are continuously put into the feeding trough 304, the orange peels contact the knife roller 100 under the action of gravity. As the knife roller 100 rotates, the front end of most of the orange peels enters the discharge trough 102, and then the knife roller 100 drives the orange peels to move toward the fixed knife 200, thereby cutting the orange peels into blocks, while a small part of the orange peels cannot fall into the discharge trough 102 at the beginning. During the rotation of the knife roller 100, this part of the orange peel may fall into another discharge trough 102 and then be cut into blocks by the knife roller 100 and the fixed knife 200, while a very small part is brought to the fixed knife 200 by the knife roller 100, and the orange peel is resisted by the resisting surface 203 of the fixed knife 200. As the knife roller 100 continuously applies thrust to the orange peel, the orange peel will be arched because the fresh orange peel is soft and easily deformed. The arched orange peel has a certain elastic restoring force, and the front end of the orange peel is in the elastic restoring force. Under the action of the restoring force, the peel has a tendency to be inserted into the knife roller 100. Therefore, when the front end of the orange peel is just aligned with the discharge groove 102, the front end of the orange peel will be inserted into the discharge groove 102, thereby completing the cutting of the orange peel. The cut orange peel is located in the discharge groove 102, and as the knife roller 100 rotates, it falls out of the discharge groove 102, thereby preventing the block material from accumulating in the discharge groove 102 and affecting the cutting of the material. After the orange peel is cut, the block orange peel falls into the receiving box 40 along the discharge groove 102. 0, the remaining orange peel is blocked by the abutment surface 203, so that the size of the block orange peel can be adjusted by adjusting the rotation speed of the knife roller 100. Similarly, the remaining orange peel falls into the discharge trough under the action of gravity or arches under the rotation and pushing action of the knife roller 100, and then enters the subsequent discharge trough 102 again. Finally, the strip orange peel is cut into several blocks. For the last orange peel, if it can completely fall into the discharge trough 102, it means that its size meets the requirements and does not need to be cut, thereby completing the dicing of the orange peel.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A slicing mechanism, comprising a fixed knife and a rotary knife roller, the knife roller is provided with a movable knife extending in the axial direction, and the knife roller is also provided with a discharge groove corresponding to the movable knife, characterized in that: It also includes a feeding piece for feeding materials to the feeding area of ​​the knife roller. With the rotation direction of the knife roller as the front, the feeding piece is located above the knife roller, and the fixed knife is located at the front side of the outlet of the feeding piece. The moving knife blade faces the fixed knife, and the shortest distance between the fixed knife blade of the fixed knife and the moving knife blade of the moving knife is less than the thickness of the material.

2. A cutting mechanism according to claim 1, characterized in that: The feeding member has a U-shaped plate, which is installed on the fixed knife, and a feeding trough is formed between the U-shaped plate and the fixed knife, and there is a gap between the bottom of the feeding trough and the circumference of the fixed knife blade.

3. A cutting mechanism according to claim 2, characterized in that: A material blocking plate extending in the axial direction is also arranged at the rear bottom of the U-shaped plate.

4. A cutting mechanism according to claim 2 or 3, characterized in that: The front end surfaces of the two side walls of the U-shaped plate are provided with wing plates folded outwards, and the wing plates are detachably connected to the fixed knife.

5. A cutting mechanism according to any one of claims 1 to 3, characterized in that: The bottom of the fixed knife is provided with a retreat slope, and the shortest distance between the retreat slope and the circumference of the fixed knife blade gradually increases from the back to the front.

6. A cutting device, characterized in that: It comprises a chassis, a material receiving box and the slicing mechanism according to any one of claims 1 to 5, the material receiving box having an open slot, the knife roller of the slicing mechanism being located in the material receiving box, and the slicing areas of the knife roller and the fixed knife being located at the open slot, the material receiving box and the slicing mechanism being both located in the chassis, and both ends of the knife roller being rotatably mounted on the chassis, and the fixed knife being fixedly mounted in the chassis.

7. A block cutting device according to claim 6, characterized in that: A mounting seat is installed in the chassis, and the fixed knife is detachably mounted on the mounting seat.

8. A block cutting device according to claim 6, characterized in that: Bearing seats are arranged at both ends of the knife roller, sliding grooves are opened on the axial side walls of the chassis, the sliding grooves extend along the front-back direction, the bearing seats are slidably installed in the sliding grooves, and a screw adjustment device is installed in the sliding grooves.

9. A block cutting device according to claim 8, characterized in that: The screw adjustment device includes a fixing plate, a pressing screw, a tightening screw and a fastening nut. The fixing plate is fixedly installed in the sliding groove, and a threaded through hole is provided on the fixing plate for threadably matching the pressing screw. A blind abutment hole corresponding to the pressing screw is provided on the outer wall of the bearing seat, and one end of the pressing screw passes through the threaded through hole and abuts against the abutment blind hole. A tightening nut is also installed on the pressing screw between the head of the pressing screw and the fixing plate, and a through hole is also provided on the fixing plate for the tightening screw to pass through. A screw hole corresponding to the tightening screw is opened and closed on the outer wall of the bearing seat, and one end of the tightening screw passes through the through hole and is locked with the screw hole, and a tightening nut is also installed on the tightening screw between the head of the tightening screw and the fixing plate.

10. A block cutting device according to claim 6, characterized in that: The opening groove is a right-angle groove, and the cutting area of ​​the knife roller and the fixed knife is close to the vertical side wall of the opening groove.

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