An automatic cardboard identification, screening and feeding device

Abstract

The present invention relates to the technical field of cardboard production, and particularly relates to an automatic identification, screening and loading device for cardboard, including a cutting machine, an electric actuator I, etc.; at least two electric actuators I are installed on the cutting machine. The present invention realizes the detection of the lowermost cardboard through the operation of a vision sensor. If it is detected that the placement direction of the cardboard is correct, the cardboard is conveyed to the upper surfaces of all the separating frames and guided by the upper surfaces of the separating frames. If the vision sensor detects that the direction of the cardboard is inconsistent with that of the normally placed cardboard, then the left parts of all the separating frames are rotated above the cardboard to block the right end of the cardboard, and through the guiding action of all the separating frames, the cardboard is made to move towards the diversion plate and guided by the diversion plate, so as to remove the cardboard with inconsistent placement directions.

Description

Technical Field

[0001] The present invention relates to the technical field of cardboard production, and particularly relates to an automatic identification and screening feeding device for cardboard. Background Art

[0002] A cutting machine is a mechanical device that cuts wide-width paper or film into multiple narrow-width materials, and is commonly used in papermaking machinery and printing and packaging machinery. Before cutting cardboard, existing cardboard cutting equipment needs to neatly stack multiple pieces of cardboard at the feeding place of the cutting equipment. Then, when feeding, it is necessary to manually screen the stacked cardboard to ensure that the cardboard is in the same direction, so as to reduce the defective rate of the cut cardboard. However, when the cardboard is stacked and palletized during feeding, there are large detection dead corners in manual screening, and long-term observation by workers is prone to visual fatigue, which in turn is prone to problems such as insufficient and inaccurate screening, resulting in the cut cardboard not meeting the specifications and causing waste of cardboard. Summary of the Invention

[0003] In order to overcome the shortcomings that manual screening of stacked cardboard is prone to insufficient and inaccurate screening, the present invention provides an automatic identification and screening feeding device for cardboard.

[0004] The technical implementation solution of the present invention is: an automatic identification and screening feeding device for cardboard, including a cutting machine; further including an electric actuator I, a baffle, a connecting frame, a diversion plate, a coupling shaft, a motor I, a separating frame, and a vision sensor; at least two electric actuators I are installed on the cutting machine; the telescopic parts of all the electric actuators I are commonly fixedly connected with a baffle; at least two connecting frames are fixedly connected to the baffle; all the connecting frames are slidably connected to the cutting machine; a diversion plate is commonly fixedly connected to all the connecting frames; a coupling shaft is rotatably connected to all the connecting frames; a motor I is installed on one of the connecting frames; the output shaft of the motor I is fixedly connected to the coupling shaft; a plurality of separating frames are fixedly connected to the coupling shaft, and the separating frames are arranged in a triangular shape; a vision sensor is fixedly connected to the lower surface of the cutting machine.

[0005] Optionally, the side of the diversion plate close to the baffle is set to be arc-shaped.

[0006] Optionally, the outer surface of the separating frame is provided with a coating to make the outer surface of the separating frame smoother.

[0007] Optionally, it further includes a guiding roller; a guiding roller is installed on the baffle.

[0008] Optionally, it further includes an electric slide rail I, an electric slider I, a limiting plate, and a top plate; an electric slide rail I is installed on the cutting machine; at least two electric sliders I are slidably connected to the electric slide rail I; a limiting plate is fixedly connected to each electric slider I; a top plate is fixedly connected to the cutting machine.

[0009] Optionally, it further includes an auxiliary system; the auxiliary system is connected to the cutting machine; the auxiliary system includes a gantry, an electric slide rail II, an electric slider II, an electric actuator II, a mounting bracket, a motor II, and a round rod; a gantry is fixedly connected to the cutting machine; an electric slide rail II is installed on the gantry; at least two electric sliders II are slidably connected to the electric slide rail II; an electric actuator II is installed on each electric slider II; a mounting bracket is fixedly connected to the telescopic part of each electric actuator II; a motor II is installed on each mounting bracket; a round rod is fixedly connected to the output shaft of each motor II.

[0010] Optionally, the round rod is made of rubber material.

[0011] Optionally, it further includes a rib; a spiral rib is fixedly connected to the outer circumferential surface of each round rod.

[0012] Optionally, it further includes a protection system; the protection system is connected to the baffle; the protection system includes a mounting plate, a slide bar, a fixed block, a conveying roller, an L-shaped plate, and an electric actuator III; at least two mounting plates are fixedly connected to the baffle; at least two slide bars are fixedly connected to each mounting plate; a fixed block is slidably connected to all the slide bars on the same mounting plate; a conveying roller is fixedly connected to all the fixed blocks; at least two L-shaped plates are slidably connected to the cutting machine; an electric actuator III is fixedly connected to each L-shaped plate; the telescopic part of each electric actuator III is fixedly connected to a fixed block respectively.

[0013] Optionally, the outer surface of the conveying roller is provided with a coating to make the outer circumferential surface of the conveying roller smoother.

[0014] The advantages and positive effects of the present invention are:

[0015] (1) The front side and the rear side of the paper stack are limited by two limit plates respectively, so as to prevent the paper stack from shifting during the feeding process, and the right side of the paper stack is limited by the baffle, and the left side of the paper stack is limited by the top plate.

[0016] (2) The bottom cardboard is detected by the operation of the vision sensor. If it is detected that the placement direction of the cardboard is correct, the cardboard is conveyed to the upper surfaces of all the separation frames and guided by the upper surfaces of the separation frames. If the vision sensor detects that the direction of the cardboard is inconsistent with that of the normally placed cardboard, then the left parts of all the separation frames are rotated above the cardboard to block the right end of the cardboard, and through the guiding action of all the separation frames, the cardboard is made to move towards the diversion plate and guided by the diversion plate, so as to remove the cardboard with inconsistent placement direction.

[0017] (3) By moving two round rods to respectively abut against the front side and the rear side of the paper stack, and controlling two motors II to start, the output shafts of the two motors II rotate to drive one round rod to rotate respectively, so that the ridges on each round rod rotate, and then the ridges cut into the paper stack, that is, the front side and the rear side of the corresponding cardboard are clamped onto the corresponding spiral ridges, thereby supporting the cardboard by the ridges.

[0018] (4) By moving the two ridges upward, the corresponding cardboard is driven to move upward, so as to disperse the paper stack by the spiral ridges, thereby reducing the downward pressure exerted by the paper stack on the lowermost cardboard, and further reducing the damage suffered by the lowermost cardboard when being removed.

[0019] (5) The conveying rollers provide support for the cardboard, so as to avoid the phenomenon that the right part of the cardboard bends and droops during the rightward conveying process of the cardboard. And when the conveying rollers move downward, during the process that the cardboard is blocked by the separation frame and continues to move rightward, the bending angle of the whole cardboard becomes smaller, thereby reducing the bending degree of the cardboard during the removal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic three-dimensional structure diagram of the automatic identification, screening and loading device for cardboard of the present invention;

[0021] Figure 2 is a schematic diagram of the installation positions of the electric slide rail I, the electric slider I, the limiting plate and the top plate of the automatic identification, screening and loading device for cardboard of the present invention;

[0022] Figure 3 is a schematic diagram of the installation positions of the electric actuator I and the baffle of the automatic identification, screening and loading device for cardboard of the present invention;

[0023] Figure 4 is a schematic three-dimensional structure diagram of the combination of the electric actuator I, the baffle, the connecting frame, the diversion plate, the coupling shaft, the motor I, the separation frame and the vision sensor of the automatic identification, screening and loading device for cardboard of the present invention;

[0024] Figure 5 is a schematic diagram of the installation positions of the guiding roller and the motor I of the automatic identification, screening and loading device for cardboard of the present invention;

[0025] Figure 6 is a schematic diagram of the normal conveying state of the cardboard of the automatic identification, screening and loading device for cardboard of the present invention;

[0026] Figure 7 is a schematic diagram of the cardboard removal state of the automatic identification, screening and loading device for cardboard of the present invention;

[0027] Figure 8Schematic diagram of the three-dimensional structure of the auxiliary system of the automatic identification, screening and feeding device for cardboard of the present invention;

[0028] Figure 9 Schematic diagram of the three-dimensional structure of the protection system of the automatic identification, screening and feeding device for cardboard of the present invention;

[0029] Figure 10 Schematic diagram of the installation position of the electric actuator III of the automatic identification, screening and feeding device for cardboard of the present invention;

[0030] Figure 11 Schematic diagram of the bending state of the cardboard of the automatic identification, screening and feeding device for cardboard of the present invention.

[0031] Among them, the above-mentioned drawings include the following reference numerals: 1 - cutting machine, 11 - bottom plate, 12 - side guard plate, 13 - electric conveying roller I, 14 - electric conveying roller II, 2 - cardboard, 31 - electric slide rail I, 32 - electric slide block I, 33 - limiting plate, 34 - top plate, 201 - electric actuator I, 202 - baffle plate, 2021 - guiding roller, 203 - connecting frame, 204 - diversion plate, 205 - coupling shaft, 2051 - motor I, 206 - separating frame, 207 - vision sensor, 301 - gantry, 302 - electric slide rail II, 303 - electric slide block II, 304 - electric actuator II, 305 - mounting bracket, 306 - motor II, 307 - round rod, 3071 - rib, 401 - mounting plate, 402 - slide bar, 403 - fixing block, 404 - conveying roller, 405 - L-shaped plate, 406 - electric actuator III. Detailed implementation manners

[0032] First of all, it should be pointed out that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the whole specification can be transferred meaningfully to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are transferred meaningfully to the new positions when the positions change.

[0033] Embodiment 1:

[0034] An automatic identification, screening and feeding device for cardboard, according to Figures 1-7As shown in the figure, it includes a cutting machine 1, which consists of a bottom plate 11, side guard plates 12, an electric conveying roller I 13, an electric conveying roller II 14 and a cutting device; the cutting device is provided with the bottom plate 11; two side guard plates 12 are connected to the bottom plate 11; an electric conveying roller I 13 is installed on the bottom plate 11, and the electric conveying roller I 13 consists of a driving motor and a conveying roller 404; an electric conveying roller II 14 is installed on the bottom plate 11, and the electric conveying roller II 14 consists of another driving motor and another conveying roller 404;

[0035] It also includes an electric actuator I 201, a baffle 202, a connecting frame 203, a deflector 204, a coupling shaft 205, a motor I 2051, a separating frame 206 and a vision sensor 207; two electric actuators I 201 are installed on the side guard plates 12, and the electric actuator I 201 is an electric push rod; the telescopic parts of all the electric actuators I 201 are jointly fixed with a baffle 202; each side guard plate 12 is fixedly connected with an electric actuator I 201; two connecting frames 203 are fixedly connected to the side of the baffle 202 away from the electric actuator I 201; all the connecting frames 203 are slidably connected to the bottom plate 11; a deflector 204 is jointly fixed to the lower parts of all the connecting frames 203; a coupling shaft 205 is jointly rotatably connected to all the connecting frames 203; a motor I 2051 is installed on one of the connecting frames 203; the output shaft of the motor I 2051 is fixedly connected to the coupling shaft 205; a number of separating frames 206 are fixedly connected to the coupling shaft 205 at equal intervals, and the separating frame 206 is set in a triangular shape; a vision sensor 207 is fixedly connected to the lower surface of the bottom plate 11.

[0036] The side of the deflector 204 close to the baffle 202 is set in an arc shape to reduce the damage to the cardboard 2.

[0037] The outer surface of the separating frame 206 is provided with a coating to make the outer surface of the separating frame 206 smoother, so as to reduce the friction between the cardboard 2 and the separating frame 206.

[0038] It also includes a guiding roller 2021; a guiding roller 2021 is installed at the lower part of the baffle 202.

[0039] It also includes an electric slide rail I 31, an electric slider I 32, a limiting plate 33 and a top plate 34; the electric slide rail I 31 is installed on the left part of the bottom plate 11; two electric sliders I 32 are slidably connected to the electric slide rail I 31; a limiting plate 33 is fixedly connected to each electric slider I 32; a top plate 34 is fixedly connected to the left part of the bottom plate 11.

[0040] Before the existing cutting equipment cuts the cardboard 2, multiple pieces of cardboard 2 need to be neatly stacked at the feeding position of the cutting equipment. Then, when feeding, manual screening of the stacked cardboard 2 is required to ensure that the cardboard 2 is in the same direction, so as to reduce the defective rate of the cardboard 2 after cutting. However, when the cardboard 2 is being fed, it is in a stacked state. There are large detection dead angles in manual screening, and long-term manual observation is prone to visual fatigue, resulting in insufficient and inaccurate screening. As a result, the cardboard 2 after cutting does not meet the specifications, causing waste of the cardboard 2;

[0041] To solve the above problems, when feeding the cardboard 2, multiple pieces of cardboard 2 are neatly stacked on the bottom plate 11, and two electric sliders Ⅰ32 are controlled to start moving towards each other along the electric slide rail Ⅰ31. For the convenience of description, the multiple pieces of cardboard 2 stacked on the bottom plate 11 are hereinafter referred to as the paper stack. The movement of the two electric sliders Ⅰ32 each drives a limiting plate 33 to move, and the two limiting plates 33 are respectively made to abut against the front side and the rear side of the paper stack, so as to limit the front side and the rear side of the paper stack respectively through the two limiting plates 33, thereby preventing the paper stack from shifting during the feeding process. Then, two electric actuators Ⅰ201 are controlled to start. The telescopic parts of the two electric actuators Ⅰ201 move together to drive the baffle 202 to move, so that the baffle 202 moves to abut against the right side of the paper stack, and at the same time, the left side of the paper stack abuts against the top plate 34. Thus, the right side of the paper stack is limited by the baffle 202, and the left side of the paper stack is limited by the top plate 34. At the same time, the movement of the baffle 202 drives all the connected components to move, and further drives all the separating frames 206 to move.

[0042] Then, the electric conveying roller Ⅰ13 is controlled to start operating. The rotation of the electric conveying roller Ⅰ13 drives the lowermost piece of cardboard 2 to move to the right, and then conveys the cardboard 2 to the lower part of the baffle 202, and it contacts the guiding roller 2021, and the right end of the cardboard 2 contacts the left part of all the separating frames 206, as Figure 6 shown. At the same time, the visual sensor 207 is controlled to operate. The visual sensor 207 detects the lowermost piece of cardboard 2 in the paper stack. If it is detected that the placement direction of the cardboard 2 is correct, the electric conveying roller Ⅰ13 is controlled to continue operating, and the cardboard 2 is conveyed to the upper surface of all the separating frames 206, and the upper surface of the separating frames 206 guides the cardboard 2 upward until the right part of the cardboard 2 contacts the electric conveying roller Ⅱ14. Then, the electric conveying roller Ⅱ14 is controlled to start operating to continue conveying the cardboard 2 until the cardboard 2 is conveyed into the cutting machine 1 for cutting, thereby completing the feeding operation of the cardboard 2.

[0043] If the visual sensor 207 detects that the direction of the cardboard 2 is inconsistent with the normally placed cardboard 2, the motor I 2051 is controlled to start, and the output shaft of the motor I 2051 rotates to drive the connecting shaft 205 to rotate counterclockwise with the front side of the bottom plate 11 as the reference, and the rotation of the connecting shaft 205 drives all the separation racks 206 to rotate, so that the left part of all the separation racks 206 rotates to the top of the cardboard 2 to block the right end of the cardboard 2, such as Figure 7 As shown, the cardboard 2 is then continuously driven to move to the right by the electric conveying roller Ⅰ13. At this time, the cardboard 2 is blocked by all the separation racks 206, and the cardboard 2 is moved toward the guide plate 204 through the guiding effect of all the separation racks 206. The cardboard 2 is guided by the guide plate 204, so that the cardboard 2 with inconsistent placement directions is removed, and then the removed cardboard 2 is uniformly collected through the external collection box, and in the subsequent production process, the removed cardboard 2 is manually adjusted, and then the feeding and cutting operations are carried out. In addition, since the side of the guide plate 204 close to the baffle 202 is set in an arc shape, when the cardboard 2 moves onto the guide plate 204, the damage caused by the guide plate 204 to the cardboard 2 can be reduced, so that the removed cardboard 2 can be used again in the subsequent production process to avoid wasting the cardboard 2.

[0044] Embodiment 2:

[0045] Based on the first embodiment, according to Figure 8 As shown, an auxiliary system is also included; the auxiliary system is commonly connected to all side guard plates 12; the auxiliary system includes a gantry 301, an electric slide rail II 302, an electric slider II 303, an electric actuator II 304, a mounting frame 305, a motor II 306, and a round rod 307; a gantry 301 is commonly fixed to all side guard plates 12; an electric slide rail II 302 is mounted on the gantry 301; two electric sliders II 303 are slidably connected to the electric slide rail II 302; an electric actuator II 304 is mounted on each electric slider II 303, and the electric actuator II 304 is an electric push rod; the telescopic part of each electric actuator II 304 is fixedly connected to a mounting frame 305; a motor II 306 is mounted on each mounting frame 305; and the output shaft of each motor II 306 is fixedly connected to a round rod 307.

[0046] The round rod 307 is made of rubber material to reduce damage to the stacked paperboards 2 .

[0047] It also includes a convex strip 3071; each round rod 307 is fixedly connected to a spiral convex strip 3071 on the outer ring surface, which is used to move the stacked cardboards 2 and increase the friction between the round rod 307 and the cardboards 2.

[0048] When removing the cardboard 2 with inconsistent placement directions, the cardboard 2 to be removed will be subjected to the downward pressure of the remaining cardboard 2 above, which may cause the cardboard 2 to deform easily during the process of being blocked by the separation frame 206 and continuously moving to the right. To further reduce the damage to the cardboard 2, when multiple cardboards 2 are neatly stacked on the bottom plate 11 and the front and rear sides of the paper stack are limited by two limit plates 33 respectively, then control the two motors II 306 to start. The output shafts of the two motors II 306 rotate to drive a round rod 307 to rotate respectively, so that the two round rods 307 rotate. Then control the two electric sliders II 303 to start and move towards each other along the electric slide rail II 302. The two electric sliders II 303 move to drive an electric actuator II 304 to move respectively. The two electric actuators II 304 move to drive all the connected components to move, so that the two round rods 307 move to abut against the front and rear sides of the paper stack respectively. Then control the telescopic parts of the two electric actuators II 304 to move to drive an installation frame 305 to move downward respectively. The two installation frames 305 move to drive the corresponding motors II 306 to move. The two motors II 306 move to drive a round rod 307 to move downward respectively, so that the two round rods 307 move downward while rotating. Then, the two round rods 307 are used to dial the paper stack from top to bottom. Then, due to the frictional force generated between the two round rods 307 rotating and the cardboard 2, multiple cardboards 2 move above the two round rods 307, and the two round rods 307 support the multiple cardboards 2. And through the setting of the convex strip 3071, the frictional force between the round rod 307 and the cardboard 2 is further increased, so as to facilitate the two round rods 307 to rotate and drive the cardboard 2 to move. Then control the two electric actuators II 304 to start. The telescopic parts of the two electric actuators II 304 move to drive an installation frame 305 to move upward respectively. The two installation frames 305 move to drive the corresponding motors II 306 to move. The two motors II 306 move to drive the corresponding round rods 307 to move upward, so as to drive the corresponding cardboard 2 to move upward. Thus, the two round rods 307 are used to disperse the paper stack, so as to reduce the downward pressure of the paper stack on the bottommost cardboard 2, and further reduce the damage suffered by the bottommost cardboard 2 when being removed.

[0049] Embodiment Three:

[0050] On the basis of Embodiment Two, according to Figure 7 and Figures 9-11As shown, it further includes a protection system; a protection system is connected to the baffle 202; the protection system includes a mounting plate 401, a sliding rod 402, a fixing block 403, a conveying roller 404, an L-shaped plate 405, and an electric actuator III 406; two mounting plates 401 are fixedly connected to the side of the baffle 202 away from the electric actuator I 201; two sliding rods 402 are fixedly connected to each mounting plate 401; a fixing block 403 is slidably connected to all the sliding rods 402 on the same mounting plate 401; a conveying roller 404 is fixedly connected to all the fixing blocks 403; two L-shaped plates 405 are slidably connected to the bottom plate 11; an electric actuator III 406 is fixedly connected to each L-shaped plate 405, and the electric actuator III 406 is an electric push rod; the telescopic part of each electric actuator III 406 is fixedly connected to a fixing block 403 respectively.

[0051] A coating is provided on the outer surface of the conveying roller 404 to make the outer ring surface of the conveying roller 404 smoother, which is used to reduce the friction between the conveying roller 404 and the cardboard 2.

[0052] Since the cardboard 2 to be removed will be bent to a certain extent during the process of being blocked by the separation frame 206 and continuously moving to the right, which is likely to cause damage to the cardboard 2. To further improve the protection effect on the cardboard 2, the initial position of the conveying roller 404 is kept consistent with the height of the electric conveying roller I 13. Then, when the cardboard 2 moves to the right and passes through the guiding roller 2021, the conveying roller 404 can provide support for the cardboard 2, thus avoiding the phenomenon that the right part of the cardboard 2 bends and droops during the process of being conveyed to the right, as Figure 7 As shown, when it is detected that the placement direction of the cardboard 2 is inconsistent, the right end of the cardboard 2 is blocked by all the separation frames 206. Then, two electric actuators III 406 are controlled to start. The telescopic parts of the two electric actuators III 406 move respectively to drive a fixing block 403 to move downward along the corresponding sliding rod 402. The two fixing blocks 403 move synchronously to drive the conveying roller 404 to move downward together. Then, when the cardboard 2 is blocked by the separation frame 206 and continuously moves to the right, the overall bending angle of the cardboard 2 becomes smaller, as Figure 11 As shown, so as to reduce the bending degree of the cardboard 2 during the removal process.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that these embodiments can be changed without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cardboard automatic identification, screening and feeding device, comprising a cutting machine (1); wherein: The cutting machine (1) also includes an electric actuator I (201), a baffle (202), a connecting frame (203), a guide plate (204), a connecting shaft (205), a motor I (2051), a separating frame (206) and a visual sensor (207); at least two electric actuators I (201) are installed on the cutting machine (1); the telescopic parts of all the electric actuators I (201) are fixedly connected to a baffle (202); at least two connecting frames (203) are fixedly connected to the baffle (202); all the connecting frames (203) are connected to the cutting machine (1) and the cutting machine (1) is connected to the baffle (202); (1) Sliding connection; all the connecting frames (203) are fixedly connected with a guide plate (204); all the connecting frames (203) are rotatably connected with a connecting shaft (205); a motor I (2051) is installed on one of the connecting frames (203); the output shaft of the motor I (2051) is fixedly connected to the connecting shaft (205); a plurality of separation frames (206) are fixedly connected to the connecting shaft (205), and the separation frames (206) are arranged in a triangular shape; a visual sensor (207) is fixedly connected to the lower surface of the cutting machine (1); The cutting machine (1) also includes an auxiliary system; the auxiliary system is connected to the cutting machine (1); the auxiliary system includes a gantry (301), an electric slide rail II (302), an electric slider II (303), an electric actuator II (304), a mounting frame (305), a motor II (306), and a round rod (307); a gantry (301) is fixedly connected to the cutting machine (1); an electric slide rail II (302) is mounted on the gantry (301); at least two electric sliders II (303) are slidably connected to the electric slide rail II (302); an electric actuator II (304) is mounted on each electric slider II (303); a telescopic portion of each electric actuator II (304) is fixedly connected to a mounting frame (305); a motor II (306) is mounted on each mounting frame (305); and the output shaft of each motor II (306) is fixedly connected to a round rod (307); The invention also comprises a protection system; the protection system is connected to the baffle plate (202); the protection system comprises a mounting plate (401), a sliding rod (402), a fixing block (403), a conveying roller (404), an L-shaped plate (405) and an electric actuator III (406); at least two mounting plates (401) are fixedly connected to the baffle plate (202); at least two sliding rods (402) are fixedly connected to each mounting plate (401); all sliding rods (402) on the same mounting plate (401) are slidably connected to a fixing block (403); all fixing blocks (403) are fixedly connected to a conveying roller (404); at least two L-shaped plates (405) are slidably connected to the cutting machine (1); each L-shaped plate (405) is fixedly connected to an electric actuator III (406); and the telescopic portion of each electric actuator III (406) is fixedly connected to a fixing block (403).

2. The device for automatically identifying, screening and feeding paperboard according to claim 1, characterized in that: A side of the guide plate (204) close to the baffle plate (202) is arranged in an arc shape.

3. The cardboard automatic identification, screening and feeding device according to claim 1 is characterized in that: The outer surface of the separation frame (206) is provided with a coating, so that the outer surface of the separation frame (206) is smoother.

4. A cardboard automatic identification, screening and feeding device according to any one of claims 1 to 3, characterized in that: It also includes a guide roller (2021); the guide roller (2021) is mounted on the baffle plate (202).

5. The paperboard automatic identification, screening and feeding device according to claim 4 is characterized in that: It also includes an electric slide rail I (31), an electric slider I (32), a limit plate (33) and a top plate (34); the cutting machine (1) is installed with the electric slide rail I (31); at least two electric sliders I (32) are slidably connected to the electric slide rail I (31); each electric slider I (32) is fixedly connected to a limit plate (33); and the cutting machine (1) is fixedly connected to the top plate (34).

6. The paperboard automatic identification, screening and feeding device according to claim 1 is characterized in that: The round rod (307) is made of rubber.

7. The paperboard automatic identification, screening and feeding device according to claim 1 is characterized in that: It also includes a convex strip (3071); the outer ring surface of each round rod (307) is fixedly connected with a spiral convex strip (3071).

8. The paperboard automatic identification, screening and feeding device according to claim 7 is characterized in that: The outer edge surface of the conveying roller (404) is provided with a coating, so that the outer annular surface of the conveying roller (404) is smoother.

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