Automatic paperboard identifying, screening and feeding device

Abstract

The invention relates to the technical field of paperboard production, in particular to an automatic paperboard identifying, screening and feeding device which comprises a cutting machine, an electric actuator I and the like. And at least two electric actuators I are mounted on the cutting machine. According to the paperboard separating device, the lowest paperboard is detected through operation of the visual sensor, and if it is detected that the placement direction of the paperboard is correct, the paperboard is conveyed to the upper surfaces of all the separating frames and guided through the upper surfaces of the separating frames, so that the paperboard is separated from the separating frames; if the visual sensor operates to detect that the direction of the paperboard is inconsistent with the direction of the normally placed paperboard, the right end of the paperboard is blocked by rotating the left parts of all the separation frames to the position above the paperboard, the paperboard moves towards the flow guide plate through the guiding effect of all the separation frames, and the paperboard is guided through the flow guide plate; and therefore, the paperboards with inconsistent placement directions are removed.

Description

Technical Field

[0001] The invention relates to the technical field of paperboard production, and in particular to a paperboard automatic identification, screening and feeding device. Background Art

[0002] A cutting machine is a mechanical device that cuts wide paper or film into multiple narrow materials. It is commonly used in papermaking machinery and printing and packaging machinery. Before existing cardboard cutting equipment cuts cardboard, it is necessary to neatly stack multiple cardboards at the feeding place of the cutting equipment. Then, when loading, it is necessary to manually screen the stacked cardboards to ensure that the directions of the cardboards are consistent, so as to reduce the defective rate of the cardboards after cutting. However, the cardboards are in a stacked and stacked state when loading, and there are large blind spots in manual screening. In addition, long-term manual observation is prone to visual fatigue, which can easily lead to insufficient and inaccurate screening, resulting in the problem of insufficient and inaccurate screening, which in turn causes the cardboards after cutting not to meet the specifications, resulting in the problem of cardboard waste. Summary of the invention

[0003] In order to overcome the disadvantages of manual screening of stacked cardboards, which may easily lead to insufficient and inaccurate screening, the present invention provides a cardboard automatic identification, screening and feeding device.

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

[0005] Optionally, a side of the guide plate close to the baffle is configured to be in an arc shape.

[0006] Optionally, the outer surface of the separation frame is provided with a coating, so that the outer surface of the separation frame is smoother.

[0007] Optionally, a guide roller is also included; the guide roller is installed on the baffle.

[0008] Optionally, it also includes an electric slide rail I, an electric slider I, a limit plate and a top plate; the cutting machine is equipped with an electric slide rail I; at least two electric sliders I are slidably connected to the electric slide rail I; each electric slider I is fixed with a limit plate; and the cutting machine is fixed with a top plate.

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

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

[0011] Optionally, it also includes convex strips; each round rod outer ring surface is fixedly connected with a spiral convex strip.

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

[0013] Optionally, the outer edge surface of the conveying roller is provided with a coating so that the outer annular surface of the conveying roller is smoother.

[0014] The advantages and positive effects of the present invention are: (1) The front and rear sides of the paper pile are limited by two limit plates respectively, thereby preventing the paper pile from shifting during the loading process, and the right side of the paper pile is limited by the baffle plate, and the left side of the paper pile is limited by the top plate.

[0015] (2) The bottom cardboard is detected by the visual sensor. If it is detected that the placement direction of the cardboard is correct, the cardboard is transported to the upper surface of all the separation racks and guided by the upper surface of the separation racks. If the visual sensor detects that the direction of the cardboard is inconsistent with that of the normally placed cardboard, the left part of all the separation racks is rotated to the top of the cardboard to block the right end of the cardboard. Through the guiding effect of all the separation racks, the cardboard moves toward the guide plate and is guided by the guide plate, so that the cardboard with inconsistent placement direction is removed.

[0016] (3) By moving the two round rods to respectively press against the front and rear sides of the paper pile, and controlling the two motors II to start, the output shafts of the two motors II rotate to drive one round rod to rotate, thereby causing the convex strips on each round rod to rotate, and then causing the convex strips to cut into the paper pile, that is, the front and rear sides of the corresponding paperboard are stuck into the corresponding spiral convex strips, so that the paperboard is supported by the convex strips.

[0017] (4) By moving the two convex strips upward, the corresponding cardboard is driven upward, so that the paper pile is dispersed by the spiral convex strips, thereby reducing the downward pressure exerted by the paper pile on the bottom cardboard, thereby reducing the damage to the bottom cardboard when it is removed.

[0018] (5) The conveyor roller provides support for the cardboard to prevent the right part of the cardboard from bending and falling during the rightward conveying process. The conveyor roller moves downward so that the overall bending angle of the cardboard becomes smaller when the cardboard is blocked by the separation rack and continues to move to the right, thereby reducing the degree of bending of the cardboard during the rejection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the paperboard automatic identification, screening and feeding device of the present invention; Figure 2 This is a schematic diagram of the installation positions of the electric slide rail I, electric slider I, limit plate and top plate of the cardboard automatic identification, screening and feeding device of the present invention; Figure 3 This is a schematic diagram of the installation position of the electric actuator I and the baffle of the cardboard automatic identification, screening and feeding device of the present invention; Figure 4 It is a schematic diagram of the combined three-dimensional structure of the electric actuator I, baffle, connecting frame, guide plate, connecting shaft, motor I, separation frame and visual sensor of the cardboard automatic identification, screening and feeding device of the present invention; Figure 5 A schematic diagram of the installation position of the guide roller and the motor I of the paperboard automatic identification, screening and feeding device of the present invention; Figure 6 This is a schematic diagram of a normal cardboard conveying state of the cardboard automatic identification, screening and feeding device of the present invention; Figure 7 It is a schematic diagram of the cardboard rejection state of the cardboard automatic identification, screening and feeding device of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the auxiliary system of the paperboard automatic identification, screening and feeding device of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the protection system of the automatic cardboard identification, screening and feeding device of the present invention; Fig.10This is a schematic diagram of the installation position of the electric actuator III of the cardboard automatic identification, screening and feeding device of the present invention; Fig.11 It is a schematic diagram of the bending state of cardboard in the automatic cardboard identification, screening and feeding device of the present invention.

[0020] The above drawings include the following reference numerals: 1-cutter, 11-bottom plate, 12-side guard plate, 13-electric conveyor roller I, 14-electric conveyor roller II, 2-cardboard, 31-electric slide rail I, 32-electric slider I, 33-limiting plate, 34-top plate, 201-electric actuator I, 202-baffle, 2021-guide roller, 203-connecting frame, 204-guide plate, 205-coupling shaft, 205 1-motor Ⅰ, 206-separation frame, 207-visual sensor, 301-gantry, 302-electric slide rail Ⅱ, 303-electric slider Ⅱ, 304-electric actuator Ⅱ, 305-mounting frame, 306-motor Ⅱ, 307-round rod, 3071-convex strip, 401-mounting plate, 402-slide rod, 403-fixed block, 404-transmission roller, 405-L-shaped plate, 406-electric actuator Ⅲ. DETAILED DESCRIPTION

[0021] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0022] Embodiment 1: A cardboard automatic identification, screening and feeding device, according to Figure 1-Figure 7 As shown, the cutting machine 1 is composed of a bottom plate 11, a side guard plate 12, an electric conveying roller I 13, an electric conveying roller II 14 and a cutting device; the cutting device is provided with a 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 is composed of a driving motor and a conveying roller 404; the bottom plate 11 is provided with an electric conveying roller II 14, and the electric conveying roller II 14 is composed of another driving motor and another conveying roller 404; The side guard plate 12 also includes an electric actuator Ⅰ201, a baffle 202, a connecting frame 203, a guide plate 204, a connecting shaft 205, a motor Ⅰ2051, a separation frame 206 and a visual sensor 207; two electric actuators Ⅰ201 are installed on the side guard plate 12, and the electric actuators Ⅰ201 are electric push rods; the telescopic parts of all electric actuators Ⅰ201 are fixedly connected to a baffle 202; each side guard plate 12 is fixedly connected to an electric actuator Ⅰ201; the side of the baffle 202 away from the electric actuator Ⅰ201 is fixedly connected to Two connecting frames 203; all the connecting frames 203 are slidably connected to the bottom plate 11; a guide plate 204 is fixedly connected to the lower part of all the connecting frames 203; a connecting shaft 205 is 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 connecting shaft 205; a number of separation frames 206 are fixedly connected to the connecting shaft 205 at equal distances, and the separation frames 206 are arranged in a triangular shape; a visual sensor 207 is fixedly connected to the lower surface of the bottom plate 11.

[0023] The side of the guide plate 204 close to the baffle 202 is configured to be in an arc shape to reduce damage to the paperboard 2 .

[0024] 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, so as to reduce the friction between the paperboard 2 and the separation frame 206 .

[0025] It also includes a guide roller 2021; the guide roller 2021 is installed at the lower part of the baffle 202.

[0026] It also includes an electric slide rail Ⅰ31, an electric slider Ⅰ32, a limit plate 33 and a top plate 34; the electric slide rail Ⅰ31 is installed on the left part of the bottom plate 11; two electric sliders Ⅰ32 are slidably connected to the electric slide rail Ⅰ31; each electric slider Ⅰ32 is fixedly connected to a limit plate 33; the top plate 34 is fixedly connected to the left part of the bottom plate 11.

[0027] Because the existing cutting equipment needs to neatly stack multiple cardboards 2 at the feeding place of the cutting equipment before cutting the cardboards 2, and then when loading, it is necessary to manually screen the stacked cardboards 2 to ensure that the directions of the cardboards 2 are consistent, so as to reduce the defective rate of the cardboards 2 after cutting. However, the cardboards 2 are in a stacked state when loading, and there is a large detection blind spot in manual screening, and long-term manual observation is prone to visual fatigue, resulting in insufficient and inaccurate screening, which in turn causes the cardboards 2 after cutting to not meet the specifications, resulting in the problem of waste of cardboards 2; In order to solve the above problem, when loading the cardboard 2, multiple cardboards 2 are neatly stacked on the bottom plate 11, and the two electric sliders Ⅰ32 are controlled to start moving toward each other along the electric slide rails Ⅰ31. For the convenience of describing the multiple cardboards 2 stacked on the bottom plate 11, they are hereinafter referred to as paper piles. The movement of the two electric sliders Ⅰ32 drives each limiting plate 33 to move, and the two limiting plates 33 are respectively against the front and rear sides of the paper pile, so that the front and rear sides of the paper pile are limited by the two limiting plates 33, thereby preventing To stop the paper pile from shifting during the loading process, the two electric actuators Ⅰ201 are then controlled to start, and the telescopic parts of the two electric actuators Ⅰ201 move to jointly drive the baffle 202 to move, so that the baffle 202 moves to press against the right side of the paper pile, and at the same time, the left side of the paper pile presses against the top plate 34, so that the right side of the paper pile is limited by the baffle 202, and the left side of the paper pile is limited by the top plate 34, and at the same time, the movement of the baffle 202 drives all connected parts to move, and then drives all separation frames 206 to move.

[0028] Then, the electric conveying roller Ⅰ13 is controlled to start operation, and the electric conveying roller Ⅰ13 rotates to drive the bottom cardboard 2 to move to the right, and then the cardboard 2 is conveyed to the bottom of the baffle 202, and contacts with the guide roller 2021, and the right end of the cardboard 2 contacts with the left part of all the separation racks 206, as shown in FIG. Figure 6 As shown, the visual sensor 207 is controlled to operate at the same time, and the cardboard 2 at the bottom of the paper pile is detected by the visual sensor 207. If it is detected that the placement direction of the cardboard 2 is correct, the electric conveying roller I13 is controlled to operate continuously to convey the cardboard 2 to the upper surface of all the separation racks 206, and the cardboard 2 is guided upward through the upper surface of the separation rack 206 until the right part of the cardboard 2 contacts the electric conveying roller II14, and then the electric conveying roller II14 is controlled to start operating to continue conveying the cardboard 2 until the cardboard 2 is conveyed to the cutting machine 1 for cutting, thereby completing the feeding operation of the cardboard 2.

[0029] 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 7As 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.

[0030] Embodiment 2: Based on the first embodiment, 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.

[0031] The round rod 307 is made of rubber material to reduce damage to the stacked paperboards 2 .

[0032] 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.

[0033] When the cardboards 2 with inconsistent placement directions are removed, the cardboards 2 to be removed will be subjected to the downward pressure of the remaining cardboards 2 above, which will cause the cardboards 2 to be easily deformed in the process of being blocked by the separation frame 206 and continuously moving to the right. In order to further reduce the damage to the cardboards 2, when multiple cardboards 2 are neatly stacked on the bottom plate 11, and the front and rear sides of the paper pile are limited respectively by two limiting plates 33, the two motors II 306 are controlled to start, and the output shafts of the two motors II 306 rotate to drive a round rod 307 to rotate, so that The two round rods 307 are rotated, and then the two electric sliders II 303 are controlled to start moving toward each other along the electric slide rail II 302. The movement of the two electric sliders II 303 drives an electric actuator II 304 to move, and the movement of the two electric actuators II 304 drives all the connected parts to move, so that the two round rods 307 move to respectively press against the front and rear sides of the paper pile, and then the telescopic parts of the two electric actuators II 304 are controlled to move and drive a mounting frame 305 to move downward, and the movement of the two mounting frames 305 drives the corresponding motor II 306 to move. The two motors II 306 move and drive a round rod 307 to move downward, so that the two round rods 307 move downward while rotating, and then the paper pile is pushed from top to bottom by the two round rods 307, and then the friction between the two round rods 307 and the paperboard 2 is generated, so that multiple paperboards 2 are moved to the top of the two round rods 307, and the multiple paperboards 2 are supported by the two round rods 307, and the friction between the round rods 307 and the paperboard 2 is further increased by the setting of the convex strips 3071, so that the two round rods 307 can rotate to drive the paper pile to move downward. The plate 2 moves, and then the two electric actuators II 304 are controlled to start. The telescopic parts of the two electric actuators II 304 move to drive each mounting frame 305 to move upward. The movement of the two mounting frames 305 drives the corresponding motors II 306 to move. The movement of the two motors II 306 drives the corresponding round rods 307 to move upward, and then drives the corresponding paperboard 2 to move upward, so that the paper pile is scattered by the two round rods 307, thereby reducing the downward pressure of the paper pile on the bottom paperboard 2, and then reducing the damage to the bottom paperboard 2 when being removed.

[0034] Embodiment three: Based on the second embodiment, according to Figure 7 and Figure 9-11As shown, it also includes a protection system; the baffle 202 is connected to the protection system; the protection system includes a mounting plate 401, a slide bar 402, a fixed 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 slide bars 402 are fixedly connected to each mounting plate 401; all slide bars 402 on the same mounting plate 401 are slidably connected to a fixed block 403; all fixed blocks 403 are commonly fixed to a conveying roller 404; two L-shaped plates 405 are slidably connected to the bottom plate 11; each L-shaped plate 405 is fixedly connected to an electric actuator III 406, 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 fixed block 403.

[0035] The outer edge surface of the conveying roller 404 is provided with a coating, so that the outer ring surface of the conveying roller 404 is smoother, so as to reduce the friction between the conveying roller 404 and the paperboard 2 .

[0036] Since the cardboard 2 to be removed is blocked by the separation frame 206 and continues to move to the right, the cardboard 2 will be bent to a certain extent, which may easily cause the cardboard 2 to be damaged. In order to further improve the protection effect of the cardboard 2, the initial position of the conveying roller 404 is consistent with the height of the electric conveying roller Ⅰ13, so that after the cardboard 2 moves to the right and passes through the guide roller 2021, the conveying roller 404 can provide support for the cardboard 2, thereby preventing the right part of the cardboard 2 from bending and drooping during the rightward conveyance process. 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, and then the two electric actuators III 406 are controlled to start, and the telescopic parts of the two electric actuators III 406 move to drive a fixed block 403 to move downward along the corresponding slide rod 402, and the two fixed blocks 403 move synchronously to drive the conveying roller 404 to move downward, and then when the cardboard 2 is blocked by the separation frame 206 and continues to move to the right, the overall bending angle of the cardboard 2 becomes smaller, as shown in FIG. Fig.11 As shown, the bending degree of the cardboard 2 during the rejection process is reduced.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which 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; a guide plate (204) is fixedly connected to all the connecting frames (203); a connecting shaft (205) is 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 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).

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 5 is characterized in that: The invention also comprises an auxiliary system; the auxiliary system is connected to the cutting machine (1); the auxiliary system comprises 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).

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

8. The paperboard automatic identification, screening and feeding device according to claim 6 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).

9. The device for automatically identifying, screening and feeding paperboard according to claim 8, characterized in that: 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).

10. The paperboard automatic identification, screening and feeding device according to claim 9, 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.

Images