An automatic material package cutting, material crushing and conveying device

Abstract

The present invention relates to an automatic material bag cutting and material crushing and conveying device, comprising a cutter assembly, a crushing rotor, a conveyor belt, and a support. The cutter assembly is connected to the top of the support, and a crushing rotor connected to the support is disposed below the cutter assembly. The conveyor belt is disposed directly below the crushing rotor. The cutter assembly includes a main crossbeam parallel to the conveying direction of the conveyor belt, a plurality of longitudinal and transverse beams perpendicularly and symmetrically connected to both sides of the main crossbeam, cutting tools respectively connected to the main crossbeam and each longitudinal and transverse beam, and a drive motor connected to the support for driving each cutting tool to rotate. The material bag descends from directly above the cutter assembly, the outer packaging of the material bag is cut, and the material falls into the crushing rotor for crushing before falling onto the conveyor belt. The central main crossbeam is higher than the outer ends of the longitudinal and transverse beams on both sides. The raised cross-shaped cutter holder in the middle can fully cut the material bag, and the inclined longitudinal and transverse beams also facilitate the falling of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics and transportation, and in particular to a device for automatically cutting material bags and crushing and conveying them. Background Art

[0002] In the material loading and unloading business, there is a method of cutting open the outer packaging of tons of packaged goods and loading the materials into bulk for shipment or other uses. The traditional method of unpacking tons of materials is to use a forklift to lift the goods to a certain height. Workers then get under the forklift's shovel teeth and the goods and manually cut the outer packaging of the materials with a long-handled sickle. This method has many problems, mainly low efficiency, poor working environment for workers, and even certain safety risks.

[0003] On-site investigations revealed that after tons of packaged goods are opened, there are two conditions: one is that the material is relatively dispersed, and the other is that the material is severely compacted. In most cases, the material must be loose and not agglomerated, and the compacted material must be broken up. The current process for breaking up compacted material is to use excavators, which is not only inefficient but also expensive and uneconomical. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide an automatic material bag cutting and material crushing and conveying device to solve the problems of automatic cutting of material outer packaging, crushing of compacted materials, and integrated material transportation.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic material bag cutting and material crushing and conveying device, including a cutting knife assembly, a crushing rotor, a conveyor belt and a bracket, the top of the bracket is connected to the cutting knife assembly, and a crushing rotor connected to the bracket is arranged below the cutting knife assembly, and the conveyor belt is arranged just below the crushing rotor. The upper part of the bracket is surrounded by four rectangular baffles that are connected end to end to form a box structure that is through from top to bottom. The cutting knife assembly and the crushing rotor are respectively arranged inside the box structure, and the cutting knife assembly includes a main crossbeam parallel to the conveying direction of the conveyor belt, a plurality of longitudinal and transverse beams vertically and symmetrically connected to both sides of the main crossbeam, cutting tools respectively connected to the main crossbeam and each longitudinal and transverse beam, and a driving motor connected to the bracket for driving each cutting tool to rotate. The two ends of the crossbeam are fixedly connected to the bracket, and the ends of each longitudinal and transverse beams away from the main crossbeam are fixedly connected to the bracket, and the blade of each tool extends out of the main crossbeam or the upper surface of each longitudinal and transverse beam; the crushing rotor includes two parallel impeller shafts and multiple cross impellers, any impeller shaft is parallel to the conveying direction of the conveyor belt and its two ends are rotatably connected to the baffles at both ends of the bracket, multiple cross impellers are closely arranged on the two impeller shafts, the cross impellers on the two impeller shafts are staggered and arranged, and the same end of the two impeller shafts extends out of the baffle, and a gear is respectively mounted on the two impeller shafts outside the baffle, and the two gears are engaged with each other to make the two impeller shafts rotate synchronously in opposite directions, and a third motor is connected to the bracket, and the output shaft of the third motor is coaxially connected to an impeller shaft to drive the impeller shaft to rotate.

[0006] As a preferred embodiment, a set of tools is provided on the main crossbeam and each longitudinal and transverse beam, and any set of tools includes at least two sprockets arranged radially and a serrated chain surrounding all the sprockets and meshing with each sprocket, all sprockets of any tool are discretely arranged in sequence along the axial direction of the main crossbeam or longitudinal and transverse beam where they are located, the axle of each sprocket is arranged horizontally, and each sprocket is rotatably connected to the main crossbeam or longitudinal and transverse beam where it is located, a transmission shaft is arranged parallel to each other on both sides of the main crossbeam, and a first drive motor corresponding to the two transmission shafts is connected to the bracket, and the end of each longitudinal and transverse beam located on the same side of the main crossbeam away from the main crossbeam is sleeved on the transmission shaft on the same side, the transmission shaft is rotatably connected to each longitudinal and transverse beam, one end of the transmission shaft extends to the bracket and is transmission-connected to the corresponding first drive motor on the bracket, the sprocket at the end of the tool on each longitudinal and transverse beam away from the main crossbeam is fixedly sleeved on the transmission shaft and rotates with the transmission shaft, and the sprocket at one end of the tool on the main crossbeam is arranged at the end of the main crossbeam and is transmission-connected to a second drive motor connected to the bracket.

[0007] As a preferred embodiment, a through slot is respectively opened at both ends of any longitudinal and transverse beam, and the sprockets at both ends of the tool on the longitudinal and transverse beam are rotatably connected in the through slots at both ends of the longitudinal and transverse beam in a one-to-one correspondence, the root diameter of the sprocket is larger than the longitudinal thickness of the longitudinal and transverse beam, and the serrated chain of the tool on the longitudinal and transverse beam is wrapped around the two sprockets along the top and bottom surfaces of the longitudinal and transverse beam, the sprocket away from the main crossbeam is rotatably connected to the longitudinal and transverse beam through the transmission shaft, and the sprocket close to the main crossbeam is rotatably connected to the longitudinal and transverse beam through its wheel axle; the main crossbeam A through groove running through the main beam is also provided at both ends, and a number of through grooves running through the main beam are also provided in the middle of the main beam. The sprockets at both ends of the tool on the main beam are rotatably connected to the through grooves at both ends of the main beam, and a sprocket is rotatably connected to each through groove in the middle of the main beam. The root circle diameter of the sprocket is larger than the longitudinal thickness of the main beam. The serrated chain on the main beam is wrapped around the sprockets at both ends along the top and bottom surfaces of the main beam, and the sprockets in the middle of the main beam support the serrated chain.

[0008] As a preferred embodiment, the bracket includes a base with a rectangular frame structure, a plurality of supporting legs respectively arranged on the bottom surfaces of both sides of the base, four corner columns respectively arranged at the four corners of the base and vertically connected to the top surface of the base, a plurality of side columns evenly distributed on the top surfaces of both sides of the base and two end columns respectively arranged in the center of the top surfaces of both ends of the base, one end of any longitudinal and transverse beam away from the main transverse beam is fixedly connected to the top of a side column, and the two ends of the main transverse beam are respectively fixedly connected to the top of the end column, two of the four baffles are connected to the inner sides of the two rows of side columns and are respectively provided with through holes corresponding to the longitudinal and transverse beams, and the other two baffles are connected to the outer sides of the two end columns and are provided with U-shaped grooves for the main transverse beam to pass through, the upper edge of each baffle is higher than the main transverse beam and each longitudinal and transverse beam, and one end of each longitudinal and transverse beam away from the main transverse beam passes through the through holes on the baffle and extends out of the baffle, and both transmission shafts are arranged outside the baffle.

[0009] As a preferred embodiment, the main crossbeam and the longitudinal and transverse beams on both sides are arranged in a ridge shape, and the top of the end column connecting the two ends of the main crossbeam is higher than the top of the side column connecting each longitudinal and transverse beam, so that each longitudinal and transverse beam is set at an angle.

[0010] As a preferred embodiment, the conveyor belt includes a circulating crawler belt, which is correspondingly arranged directly below the crushing rotor and is driven by a fourth motor at one end.

[0011] As a preferred embodiment, a plurality of wheels are provided on both sides of the conveying direction of the conveyor belt.

[0012] As a preferred embodiment, at least one of the two baffles located on both sides of the impeller shaft is provided with a plurality of suction holes discretely arranged along the axial direction of the impeller shaft, and a suction branch pipe corresponding to the suction holes is connected to the outer wall of the baffle, one end of the suction branch pipe is connected to the suction hole, and the other end is connected to the air inlet end of a dust suction fan, and the air outlet end of the dust suction fan is connected to the dust filter bag through the tail pipe.

[0013] As a preferred embodiment, the lower edges of the baffles located on both sides of the impeller shaft extend downward to below the upper surface of the conveyor belt.

[0014] As a preferred embodiment, the teeth on the sawtooth chain are the blades of a tool.

[0015] The beneficial effects of the present invention are as follows: an automatic cutting knife assembly is designed and developed, and the material bag is automatically cut by the rapid operation of the sawtooth chain. The arrangement of the sawtooth chain is designed to be a plurality of cross-shaped knife holders, which is conducive to fully cutting the material bag. The outer packaging after cutting remains as a whole and will not be scattered, which is conducive to collection. The sawtooth chain is safer than other large-scale cutting knives when it is stationary; a main crossbeam and a plurality of longitudinal and transverse beams connected on both sides are used to realize the arrangement of the cross-shaped knife holder, which has a simple structure, is easy to manufacture, and occupies less space; the chains with blades on both sides of the main crossbeam move in opposite directions, which is conducive to cutting the material bag from the middle of the bottom to the two sides, and the middle main crossbeam is higher than the two sides The outer ends of the longitudinal and transverse beams and the raised cross-shaped knife holder in the middle can fully cut through the material bags. The inclined longitudinal and transverse beams are also conducive to the falling of materials, and the structural strength is large. Two sets of crushing rotors with closely arranged cross impellers are selected below the cutter assembly, which can effectively break up the compacted materials. The broken materials fall directly onto the conveyor belt below for transportation. The present invention realizes automatic bag cutting of materials and goods without manual bag cutting, which not only improves the efficiency of bag cutting, but also ensures safety. After bag cutting, the compacted materials are mechanically crushed to improve crushing efficiency and reduce costs. The overall structure is compact and easy to maintain, realizing the integration of automatic bag cutting, crushing process and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention without the baffle;

[0019] Figure 3 This is a schematic diagram of the second chain structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the first chain structure of the present invention;

[0021] Figure 5for Figure 2 Right view;

[0022] Figure 6 This is a schematic diagram of the present invention in use;

[0023] Figure 7 A top view of the present invention;

[0024] Figure 8 for Figure 7 A partial enlarged view of

[0025] Figure 9 for Figure 2 A partial enlarged view of

[0026] Figures 1 to 9 Explanation of the reference numerals in the figure: 1. baffle; 2. bracket; 3. cutter assembly; 4. crushing rotor; 5. conveyor belt; 6. wheel; 7. material bag; 201. base; 202. support leg; 203. corner column; 204. side column; 205. end column; 206. U-shaped groove; 207. suction hole; 208. suction branch pipe; 209. dust suction fan; 210. air inlet; 211. air outlet; 3a. Shaped tool holder; 3b, tool; 301, main crossbeam; 302, longitudinal and transverse beams; 303, transmission shaft; 304, serrated chain; 305, sprocket; 306, serrations; 307, through slot; 308, first drive motor; 309, second drive motor; 401, impeller shaft; 402, cross impeller; 403, gear; 404, third motor; 501, circulating crawler; 502, fourth motor. Implementation Method

[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 9The automatic material bag cutting and material crushing and conveying device shown in the figure includes a cutting knife assembly 3, a crushing rotor 4, a conveyor belt 5 and a bracket 2. The cutting knife assembly 3 is connected to the top of the bracket 2, and the crushing rotor 4 connected to the bracket 2 is arranged below the cutting knife assembly 3. The conveyor belt 5 is arranged directly below the crushing rotor 4. The upper part of the bracket 2 is surrounded by four rectangular baffles 1 arranged end to end to form a box structure that passes through from top to bottom. The cutting knife assembly 3 and the crushing rotor 4 are respectively arranged inside the box structure. The cutting knife assembly 3 includes a main beam 301 parallel to the conveying direction of the conveyor belt 5, a plurality of longitudinal and transverse beams 302 vertically and symmetrically connected to both sides of the main beam 301, and cutters respectively connected to the main beam 301 and each longitudinal and transverse beam 302. 3b and a driving motor connected to the bracket 2 for driving each tool 3b to rotate, the two ends of the main crossbeam 301 are fixedly connected to the bracket 2, and the ends of each longitudinal and transverse beam 302 away from the main crossbeam 301 are fixedly connected to the bracket 2, and the blade of each tool 3b extends out of the main crossbeam 301 or the upper surface of each longitudinal and transverse beam 302; a main crossbeam 301 and the longitudinal and transverse beams 302 opposite on both sides are used to form a frame structure of multiple cross-shaped tool holders 3a, which has a simple structure and strong bearing capacity. The material bag 7 descends from just above the cross-shaped tool holder 3a. When it encounters the tool 3b moving on the cross-shaped tool holder 3a, the outer packaging of the material bag 7 is cut, and the material falls into the crushing rotor 4 for crushing and then falls onto the conveyor belt 5 for transportation via the conveyor belt 5.

[0029] Specifically, the crushing rotor 4 includes two parallel impeller shafts 401 and multiple cross impellers 402. Any impeller shaft 401 is parallel to the conveying direction of the conveyor belt 5 and its two ends are rotatably connected to the baffles 1 at both ends of the bracket. Multiple cross impellers 402 are closely arranged on the two impeller shafts 401. The cross impellers 402 on the two impeller shafts 401 are staggered and interspersed with each other. The same end of the two impeller shafts 401 extends out of the baffle 1. A gear 403 is respectively mounted on the two impeller shafts 401 outside the baffle 1. The two gears 403 are engaged with each other to make the two impeller shafts 401 rotate synchronously in opposite directions. A third motor 404 is connected to the bracket 2. The output shaft of the third motor 404 is coaxially connected to an impeller shaft 401 to drive the impeller shaft 401 to rotate. The two crushing rotors 4 rotate in opposite directions, and the two sets of cross impellers 402 that are staggered and interlaced with each other fully break up the compacted materials, and the loose materials fall from between the two impeller shafts 401 to prevent the materials from flying.

[0030] like Figure 2-Figure 4, a set of tools 3b is provided on each of the main crossbeam 301 and the longitudinal and transverse beams 302. Any set of tools 3b includes at least two sprockets 305 and a sawtooth chain 304 surrounding all the sprockets 305 and meshing with each sprocket 305, and each sprocket 305 is discretely arranged in sequence along the diameter direction. All the sprockets 305 of any tool 3b are discretely arranged in sequence along the axial direction of the main crossbeam 301 or the longitudinal and transverse beams 302 where they are located, and the axle of each sprocket 305 is horizontally arranged. Each sprocket 305 is rotatably connected to the main crossbeam 301 or the longitudinal and transverse beams 302 where it is located. A transmission shaft 303 is provided in parallel on both sides of the main crossbeam 301, and a first drive motor 308 corresponding to the two transmission shafts 303 is connected to the bracket 2. The ends of the longitudinal and transverse beams 302 on the same side of the main crossbeam 301 away from the main crossbeam 301 are all sleeved on the same side. The transmission shaft 303 is rotatably connected to each longitudinal and transverse beam 302. One end of the transmission shaft 303 extends to the bracket 2 and is transmission-connected to the corresponding first drive motor 308 on the bracket 2. The sprocket 305 at one end of the tool 3b on each longitudinal and transverse beam 302 away from the main beam 301 is fixedly sleeved on the transmission shaft 303 and rotates with the transmission shaft 303. The sprocket 305 at one end of the tool 3b on the main beam 301 is set at the end of the main beam 301 and is transmission-connected to a second drive motor 309 connected to the bracket 2. Multiple sprockets 305 on the main crossbeam 301 rotate, and the sprocket 305 at one end serves as a driving sprocket 305, which is connected to the second drive motor 309 for transmission, and the rest serve as driven sprockets 305; the multiple sprockets 305 on the longitudinal crossbeam 302 on the same side are driven by a first drive motor 308, and the sprockets 305 on the longitudinal crossbeams 302 on both sides are driven by different first drive motors 308. The two first drive motors 308 respectively drive the sprockets 305 on both sides to operate separately, which can cut the material bag 7 from the middle to the outside to form a cross-shaped blade, which is conducive to the opening of the material bag 7 and the falling of the material.

[0031] like Figure 9, a through slot 307 is respectively provided at both ends of any longitudinal and transverse beam 302, and the sprockets 305 at both ends of the tool 3b on the longitudinal and transverse beam 302 are rotatably connected in the through slots 307 at both ends of the longitudinal and transverse beam 302 in a one-to-one correspondence, the root diameter of the sprocket 305 is larger than the longitudinal thickness of the longitudinal and transverse beam 302, and the serrated chain 304 of the tool 3b on the longitudinal and transverse beam 302 is wrapped around the two sprockets 305 along the top and bottom surfaces of the longitudinal and transverse beam 302, the sprocket 305 away from the main crossbeam 301 is rotatably connected to the longitudinal and transverse beam 302 through the transmission shaft 303, and the sprocket 305 close to the main crossbeam 301 is rotatably connected to the longitudinal and transverse beam 302 through its wheel axle; the main crossbeam 301 Each end of the main crossbeam 301 is provided with a vertically extending through slot 307. The main crossbeam 301 also has several vertically extending through slots 307. The sprockets 305 at each end of the cutter 3b on the main crossbeam 301 are rotatably connected to the through slots 307 at each end of the main crossbeam 301. A sprocket 305 is rotatably connected to each through slot 307 in the middle of the main crossbeam 301. The root diameter of the sprocket 305 is greater than the longitudinal thickness of the main crossbeam. The serrated chain 304 on the main crossbeam 301 is wrapped around the sprockets 305 at both ends along the top and bottom surfaces of the main crossbeam 301. The sprockets 305 in the middle of the main crossbeam 301 support the serrated chain 304. The through slots 307 make the overall structure compact and tidy, occupying less space and facilitating the dropping of materials. The sprockets 305 extending from the outer ends are connected to corresponding motor drives. Their rotation is not affected by the cutting process of the material bags 7 inside the baffle 1, improving durability and facilitating maintenance.

[0032] As shown in the picture- Figure 2 The bracket 2 includes a base 201 of a rectangular frame structure, a plurality of legs 202 respectively arranged on the bottom surfaces of both sides of the base 201, four corner columns 203 respectively arranged at the four corners of the base 201 and vertically connected to the top surface of the base 201, a plurality of side columns 204 evenly distributed on the top surfaces of both sides of the base 201, and two end columns 205 respectively arranged in the center of the top surfaces of both ends of the base. The end of any longitudinal beam 302 away from the main crossbeam 301 is fixedly connected to the top of a side column 204, and the two ends of the main crossbeam 301 are respectively fixedly connected to the top of the side column 204. Connected to the top of the end column 205, two of the four baffles 1 are connected to the inner sides of the two rows of side columns 204 and are respectively provided with through holes corresponding to the longitudinal and transverse beams 302. The other two baffles 1 are connected to the outer sides of the two end columns 205 and are provided with U-shaped grooves 206 for the main transverse beam 301 to pass through. The upper edge of each baffle 1 is higher than the main transverse beam 301 and each longitudinal and transverse beam 302. The end of each longitudinal and transverse beam 302 away from the main transverse beam 301 passes through the through hole on the baffle 1 and extends out of the baffle 1. The two transmission shafts 303 are both arranged outside the baffle 1.

[0033] like Figure 2The main crossbeam 301 and the longitudinal and transverse beams 302 on either side are arranged like a roof ridge. The tops of the end columns 205 connecting the two ends of the main crossbeam 301 are higher than the tops of the side columns 204 connecting the longitudinal and transverse beams 302, making the longitudinal and transverse beams 302 inclined. The raised structure in the middle ensures that the bottom of the material bag 7 is fully in contact with the cutter 3b during its descent. The cutter 3b on the main crossbeam 301 first cuts a hole in the material bag 7, which then opens outward. As the bag continues to descend, the cutters 3b on the longitudinal and transverse beams 302, moving away from each other, continue to cut the two sides of the cut outward to form a cross-shaped opening, allowing the material to descend. This structure is highly strong and can withstand the impact of the falling material.

[0034] like Figure 1 The conveyor belt 5 includes an endless crawler belt 501, which is positioned directly below the crushing rotor 4 and driven by a fourth motor 502 at one end. A plurality of wheels 6 are also provided on both sides of the conveyor belt 5 in the conveying direction. The conveyor belt 5 with wheels 6 can be adjusted to accommodate different material transport requirements. When both sides of the conveyor belt 5 are fixedly connected to the bracket 2 and the conveyor belt 5 is integrated with the upper portion, the wheels 6 can also drive the entire conveyor belt 5 to move.

[0035] In this example, at least one of the two baffles 1 located on either side of the impeller shaft 401 is provided with a plurality of suction holes 207 discretely arranged axially along the impeller shaft 401. A suction branch pipe 208 corresponding one-to-one to each suction hole 207 is connected to the outer wall of the baffle. One end of the suction branch pipe 208 is docked with the suction hole 207, and the other end is connected to the air inlet 210 of a dust suction fan 209. The air outlet 211 of the dust suction fan 209 is connected to a dust filter bag via a tail pipe. During the crushing process of compacted material, the loosened material generates smoke and dust. The suction holes 207 provided on the baffle 1 are used to absorb the smoke and dust, and the air outlet 211 is connected to a dust filter bag via a tail pipe to purify the environment.

[0036] The lower edges of the baffles 1 on both sides of the impeller shaft 401 extend downward to below the upper surface of the conveyor belt 5. In order to prevent the spillage of the transported materials after being broken up.

[0037] Furthermore, the teeth 306 on the sawtooth chain 304 serve as the blades of the cutter 3b. When the bottom of the material bag 7 contacts the running sawtooth chain 304, the rapidly circulating teeth 306 cut through the outer packaging. The bottom packaging of the material bag 7 is cut into a cross-shaped opening, allowing the material inside to easily fall through the larger cross-shaped opening, maximizing the space for the material to fall and reducing obstacles to its fall. Using the chain with the teeth 306 as the cutter 3b occupies a small area and operates at a high speed, not only can the outer packaging of the material bag 7 be quickly and accurately cut, but it also does not affect the falling of the material.

[0038] The working process of the present invention is as follows: As shown in Figures 1-9, the sawtooth chain 304, the crushing rotor 4 and the conveyor belt 5 are controlled to operate, the sprocket 305 on the main crossbeam 301 runs in one direction, the sprockets 305 on the longitudinal and transverse beams 302 on both sides run away from each other, and the two crushing rotors 4 rotate relative to each other;

[0039] Then, the material bag 7 is directly opposite the cross-shaped knife holder 3a. The cross-shaped knife holder 3a can form a maximum opening at the bottom of the material bag 7, which is conducive to the falling of the material. The number of cross-shaped knife holders 3a can be increased or decreased according to demand. Multiple material bags 7 are slowly lowered from above the cross-shaped knife holder 3a. The bottoms of multiple material bags 7 are simultaneously cut into cross-shaped edges. The materials fall from the cross-shaped edges, and the remaining damaged packages are removed;

[0040] At the same time, the material enters the crushing rotor 4 and is shredded, then falls onto the conveyor belt 5 below and is transported to the placement point;

[0041] Finally, repeat the above crushing and transportation process.

[0042] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A material bag automatic cutting and material crushing and conveying device, characterized in that: The invention comprises a cutting knife assembly (3), a crushing rotor (4), a conveyor belt (5) and a bracket (2), wherein the top of the bracket (2) is connected to the cutting knife assembly (3), a crushing rotor (4) connected to the bracket (2) is arranged below the cutting knife assembly (3), and the conveyor belt (5) is arranged directly below the crushing rotor (4). The upper part of the bracket (2) is surrounded by four rectangular baffles (1) arranged end to end and connected to form a box structure that is connected from top to bottom. The cutting knife assembly (3) and the crushing rotor (4) are respectively arranged inside the box structure. The cutting knife assembly (3) comprises a main crossbeam (301) parallel to the conveying direction of the conveyor belt (5), a plurality of longitudinal and transverse beams (302) vertically and symmetrically connected to both sides of the main crossbeam (301), a cutter (3b) respectively connected to the main crossbeam (301) and each longitudinal and transverse beam (302), and a drive motor connected to the bracket (2) for driving each cutter (3b) to rotate. The two ends of the main crossbeam (301) are respectively fixedly connected to the bracket (2). The longitudinal and transverse beams (302) are away from the main crossbeam (301). One end is fixedly connected to the bracket (2), and the blade of each tool (3b) extends out of the upper surface of the main beam (301) or each longitudinal beam (302); the crushing rotor (4) includes two parallel impeller shafts (401) and a plurality of cross impellers (402), any impeller shaft (401) is parallel to the conveying direction of the conveyor belt (5) and both ends are rotatably connected to the baffles (1) at both ends of the bracket, and the plurality of cross impellers (402) are closely arranged on the two impeller shafts (401). ) are arranged in a staggered and interlaced manner, the same end of the two impeller shafts (401) extends out of the baffle (1), and a gear (403) is respectively sleeved on the two impeller shafts (401) located outside the baffle (1), and the two gears (403) are engaged with each other to make the two impeller shafts (401) rotate synchronously in opposite directions, and a third motor (404) is connected to the bracket (2), and the output shaft of the third motor (404) is coaxially connected to an impeller shaft (401) to drive the impeller shaft (401) to rotate; A set of tools (3b) is provided on each of the main crossbeam (301) and each of the longitudinal and transverse beams (302). Any set of tools (3b) includes at least two sprockets (305) arranged in a radial direction and a sawtooth chain (304) surrounding the periphery of all the sprockets (305) and meshing with each of the sprockets (305). All the sprockets (305) of any tool (3b) are discretely arranged in sequence along the axial direction of the main crossbeam (301) or the longitudinal and transverse beams (302) where they are located. The axle of each sprocket (305) is arranged horizontally. Each sprocket (305) is rotatably connected to the main crossbeam (301) or the longitudinal and transverse beams (302) where it is located. A transmission shaft (303) is provided in parallel on both sides of the main crossbeam (301). A first drive motor corresponding to the two transmission shafts (303) is connected to the bracket (2). (308), one end of each longitudinal and transverse beam (302) located on the same side of the main transverse beam (301) away from the main transverse beam (301) is sleeved on the transmission shaft (303) on the same side, the transmission shaft (303) is rotationally connected to each longitudinal and transverse beam (302), one end of the transmission shaft (303) extends to the bracket (2) and is transmission-connected to the corresponding first drive motor (308) on the bracket (2), the sprocket (305) at one end of the tool (3b) on each longitudinal and transverse beam (302) away from the main transverse beam (301) is fixedly sleeved on the transmission shaft (303) and rotates with the transmission shaft (303), the sprocket (305) at one end of the tool (3b) on the main transverse beam (301) is set at the end of the main transverse beam (301) and is transmission-connected to a second drive motor (309) connected to the bracket (2); At least one of the two baffles (1) located on both sides of the impeller shaft (401) is provided with a plurality of suction holes (207) discretely arranged along the axial direction of the impeller shaft (401), and a suction branch pipe (208) corresponding to the suction holes (207) is connected to the outer wall of the baffle, one end of the suction branch pipe (208) is docked with the suction hole (207), and the other end is connected to the air inlet end (210) of a dust suction fan (209), and the air outlet end (211) of the dust suction fan (209) is connected to the dust collection filter bag through the tail pipe; The saw teeth (306) on the sawtooth chain (304) are the blades of the tool (3b).

2. The automatic material bag cutting and material crushing and conveying device according to claim 1 is characterized in that: A through slot (307) is respectively provided at both ends of any longitudinal and transverse beam (302), and the sprockets (305) at both ends of the tool (3b) on the longitudinal and transverse beam (302) are rotatably connected in the through slots (307) at both ends of the longitudinal and transverse beam (302) in a one-to-one correspondence. The tooth root diameter of the sprocket (305) is larger than the longitudinal thickness of the longitudinal and transverse beam (302). The sawtooth chain (304) of the tool (3b) on the longitudinal and transverse beam (302) surrounds the two sprockets (305) along the top and bottom surfaces of the longitudinal and transverse beam (302). The sprocket (305) away from the main transverse beam (301) is rotatably connected to the longitudinal and transverse beam (302) through the transmission shaft (303), and the sprocket (305) close to the main transverse beam (301) is rotatably connected to the longitudinal and transverse beam (302) through its wheel shaft; the main transverse beam (301) ) are respectively provided with a through slot (307) running through the main beam (301) from top to bottom, and a plurality of through slots (307) running through the main beam (301) are also provided in the middle of the main beam (301). The sprockets (305) at both ends of the tool (3b) on the main beam (301) are rotatably connected in a one-to-one correspondence to the through slots (307) at both ends of the main beam (301). A sprocket (305) is rotatably connected in each through slot (307) in the middle of the main beam (301). The tooth root diameter of the sprocket (305) is larger than the longitudinal thickness of the main beam. The sawtooth chain (304) on the main beam (301) is wrapped around the sprockets (305) at both ends along the top and bottom surfaces of the main beam (301). The sprockets (305) in the middle of the main beam (301) support the sawtooth chain (304).

3. The automatic material bag cutting and material crushing and conveying device according to claim 2 is characterized in that: The bracket (2) comprises a base (201) of a rectangular frame structure, a plurality of legs (202) respectively arranged on the bottom surfaces of both sides of the base (201), four corner columns (203) respectively arranged at the four corners of the base (201) and vertically connected to the top surface of the base (201), a plurality of side columns (204) evenly distributed on the top surfaces of both sides of the base (201), and two end columns (205) respectively arranged at the center of the top surfaces of both ends of the base, one end of any longitudinal beam (302) away from the main beam (301) is fixedly connected to the top of a side column (204), and the two ends of the main beam (301) are respectively fixedly connected to the end columns (205). At the top of the column (205), two of the four baffles (1) are connected to the inner sides of the two rows of side columns (204) and are respectively provided with through holes corresponding to the longitudinal and transverse beams (302). The other two baffles (1) are connected to the outer sides of the two end columns (205) and are provided with U-shaped grooves (206) for the main transverse beam (301) to pass through. The upper edge of each baffle (1) is higher than the main transverse beam (301) and each longitudinal and transverse beam (302). One end of each longitudinal and transverse beam (302) away from the main transverse beam (301) passes through the through hole on the baffle (1) and extends outside the baffle (1). The two transmission shafts (303) are both arranged outside the baffle (1).

4. The automatic material bag cutting and material crushing and conveying device according to claim 3 is characterized in that: The main crossbeam (301) and the longitudinal and transverse beams (302) on both sides are arranged in a ridge-like manner, and the tops of the end columns (205) connecting the two ends of the main crossbeam (301) are higher than the tops of the side columns (204) connecting the longitudinal and transverse beams (302), so that the longitudinal and transverse beams (302) are arranged obliquely.

5. The automatic material bag cutting and material crushing and conveying device according to claim 1 is characterized in that: The conveyor belt (5) includes a circulating crawler belt (501), which is correspondingly arranged directly below the crushing rotor (4). The circulating crawler belt (501) is driven by a fourth motor (502) at one end.

6. The automatic material bag cutting and material crushing and conveying device according to claim 1 is characterized in that: A plurality of wheels (6) are also provided on both sides of the conveying direction of the conveyor belt (5).

7. The automatic material bag cutting and material crushing and conveying device according to claim 1 is characterized in that: The lower edges of the baffles (1) located on both sides of the impeller shaft (401) extend downward to below the upper surface of the conveyor belt (5).

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