Automatic paper leftover material collecting system

Abstract

The utility model relates to an automatic paper leftover material collecting system which comprises a main conveying pipe, a plurality of collecting devices connected with the main conveying pipe and used for inputting leftover materials, a main conveying fan installed on the main conveying pipe and a discharging device connected with the tail end of the main conveying pipe. The collecting device comprises paper shredding equipment, a collecting piece arranged below the paper shredding equipment, a discharging plate rotationally installed at the bottom of the collecting piece, a sub-conveying pipe with one end connected with the collecting piece, a sub-conveying fan and a communicating valve, wherein the sub-conveying fan and the communicating valve are installed on the sub-conveying pipe. The other end of the sub-conveying pipe communicates with the main conveying pipe, and the communicating valve is located between the sub-conveying fan and the main conveying pipe. The collecting device is arranged to be used for smashing leftover materials generated by all stations and then conveying the leftover materials to the main conveying pipe, then the leftover materials are uniformly collected and conveyed to the discharging device through the main conveying fan to be discharged, conveying and collecting of the leftover materials are achieved, manpower is saved, meanwhile, the main conveying pipe can be flexibly arranged, the occupied area is relatively small, and the cost is relatively low; and economy and practicability are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of paper product production, and more specifically, to an automatic collection system for paper scraps. Background Art

[0002] During the production process of paper products, paper products are processed by multiple processes and equipment, including paper cutters, waste strippers, and automatic die-cutting waste strippers. The amount of waste paper scraps generated every day ranges from several hundred kilograms to several tons. They need to be collected and transported manually at various workstations, which is very labor-intensive and requires a lot of labor costs. The processing efficiency is also relatively low. For medium and large factories, the equipment that produces scraps is relatively scattered and far apart, making it more troublesome to handle the scraps.

[0003] In the prior art, a waste paper strip cleaning and recycling system for a corrugated cardboard production line includes a plurality of corrugated cardboard production equipment bodies, a conveying trough is provided below each corrugated cardboard production equipment body, a transmission assembly is provided in the conveying trough, a waste paper strip shredder is provided above the end of the transmission assembly away from the corrugated cardboard production equipment body, a paper suction pipe is provided at the upper end of the waste paper strip shredder, one end of the paper suction pipe is connected to the waste paper strip shredder, a vacuum paper suction machine is connected to the end of the paper suction pipe away from the waste paper strip shredder, and a waste paper scrap collection device is connected to the end of the vacuum paper suction machine away from the paper suction pipe. The device uses a conveyor belt to transport waste paper strips and is only suitable for short-distance transmission. When used in medium and large printing plants for long-distance settings, the device occupies a large space and has a high equipment cost. Utility Model Content

[0004] In order to overcome the defects of the waste paper recycling system in the prior art in that the equipment occupies a large space and has a high equipment cost when it is set up over a long distance in medium-sized and large-sized printing plants, the utility model provides an automatic collection system for paper scraps, which solves the problem of the difficulty in collecting waste paper scraps in medium-sized and large-sized printing plants with relatively low equipment cost and less space occupied.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic collection system for paper scraps, including: a main transport pipe, a plurality of collection devices connected to the main transport pipe and used to input scraps, a main transport fan installed on the main transport pipe, and a discharge device connected to the end of the main transport pipe; the collection device includes a paper shredding device, a collecting piece arranged below the paper shredding device and a sub-transport pipe connected to the collecting piece at one end; the other end of the sub-transport pipe is connected to the main transport pipe.

[0006] The main transport pipe is used to connect each workstation that produces scraps. Each workstation is equipped with a collection device. When scraps are produced, workers put the scraps into the shredding device of the collection device. The shredded scraps fall into the collection piece and then fall into the sub-transport pipe. The main transport fan then transports the scraps in the sub-transport pipe to the discharging device through the main transport pipe. After discharging, the shredded paper is packed in bags or compressed by other equipment before packing. This realizes the automatic transportation and collection of scraps, eliminates the process of manual collection and handling, saves labor, and improves the efficiency of transportation and collection of scraps. According to the layout distance of each collection device, the number of main transport fans can be appropriately increased to ensure the smooth transportation of scraps. At the same time, the main transport fan can be opened normally or intermittently for transportation. The paper shredding equipment is used to first shred the generated scraps, and then input the shredded scraps into the sub-transport pipe, so that this collection system can be applied to the transportation of scraps of various paper types and sizes, and it is also easier to transport after shredding.

[0007] Preferably, the collecting device also includes a discharge plate rotatably installed at the bottom of the collecting member, a driving member connected to the collecting member and used to drive the discharge plate to open, a sub-conveying fan and a connecting valve respectively installed on the sub-transport pipe, and the connecting valve is located between the sub-conveying fan and the main transport pipe.

[0008] A discharge plate is provided at the bottom of the collecting member. When a certain amount of scraps are collected, the discharge plate and the connecting valve are opened at the same time, and the sub-transporting fan is started. The sub-transporting fan blows the scraps from the sub-transporting pipe into the main transporting pipe to prevent the scraps from being blocked in the sub-transporting pipe. Specifically, the discharge plate is rotated downward and opened under the drive of the driving member, so that the scraps fall into the sub-transporting pipe. The driving member is installed in the collecting member, one end of which is connected to the collecting member, and the other end is connected to the discharge plate. The driving member preferably uses a cylinder. The connecting valve is used to prevent the scraps in the main transporting pipe from flowing back into the sub-transporting pipe.

[0009] Preferably, the collecting device further comprises a gravity sensor connected to the discharge plate, and the gravity sensor is used to weigh the scraps.

[0010] A gravity sensor is provided to detect the weight of the scraps collected in the collecting member. When the set weight is reached, the discharge plate and the connecting valve are opened together, and the sub-transport fan is started to transport the scraps away. Specifically, the gravity sensor is installed on the plate surface of the discharge plate.

[0011] Preferably, the main transport pipe includes a plurality of corner portions, each of which is provided with a blockage removal opening, and the corner portions are connected with blockage removal pieces for closing the blockage removal openings.

[0012] The corner part is set to meet the arbitrary laying of the main transport pipe, and the main transport pipe can be bent or lifted to meet the laying of the main transport pipe in different factory areas; in the process of transportation, the scraps are easily accumulated at the corners, and then the blockage discharge port is set at the corner, and the blockage discharge piece is set at the blockage discharge port. When the scraps are transported, the blockage discharge piece covers the blockage discharge port. When the corner is blocked, the transportation work is stopped, and the blockage discharge piece is opened to clean the scraps. Furthermore, the corner angle of the corner should be greater than or equal to 90° and less than 180°. Furthermore, the blockage discharge piece is rotatably installed on the corner.

[0013] Preferably, it further comprises a detection device connected to the corner portion and used for detecting a blockage situation, wherein the detection device comprises a distance sensor connected to the corner portion.

[0014] The distance sensor in the detection device is used to detect whether a corner is blocked. Specifically, when the distance detected by the distance sensor does not change within the set time and the distance is lower than the set distance, it is determined that a corner is blocked; when the main conveying fan is not working and there is no blockage at the corner, the distance detected by the distance sensor is greater than the set distance and it will not be determined as a blockage; when the main conveying fan is working and there is no blockage at the corner, the scraps continue to pass through the corner, and the distance detected by the distance sensor is constantly changing and it will not be determined as a blockage.

[0015] Preferably, the detection head of the distance sensor is arranged from the upper part toward the lower part of the corner part.

[0016] The detection head of the distance sensor is set above the gravity direction and monitors downward to reduce the probability of scraps adhering to the detection head of the distance sensor and avoid misjudgment of the distance sensor.

[0017] Preferably, the discharging device includes a box body connected to the main transport pipe, a baffle plate installed inside the box body and a discharging pipe connected to the bottom of the box body, the baffle plate includes an inclined plate arranged obliquely, and the projection of the inclined plate in the direction of the main transport pipe covers the port of the main transport pipe.

[0018] After the scraps are blown out of the main transport pipe, they are hit onto the surface of the inclined inclined plate, and then fall into the discharge pipe under the action of gravity, and then are discharged; specifically, the two sides of the baffle plate are fixedly connected to the box body, and a fixing bracket is also provided in the box body for further fixing the baffle plate.

[0019] Preferably, an air outlet is provided at the top of the box body, and a channel for circulating air flow is provided between the baffle plate and the box body, and the air outlet and the channel do not overlap in the vertical direction.

[0020] The air outlet is set to divert the conveying air flow, reduce the air flow intensity of the discharge pipe, and prevent the scraps from being blown away when discharging.

[0021] Preferably, a baler for baling leftover materials is provided below the discharge pipe.

[0022] A baler is arranged below the discharge pipe to collect and pack the scraps. Specifically, a waste paper baler is selected. The machine is provided with a collection frame for collecting waste paper, and the discharge pipe is arranged above the collection frame. After a certain amount of scraps are collected, the waste paper baler compresses and packs the waste paper. Furthermore, a flexible joint is connected to the bottom of the box body, and the discharge pipe is installed on the flexible joint. The discharge pipe is a flexible pipe. The discharge pipe adopts a flexible pipe, and a flexible joint is arranged for the connection between the discharge pipe and the box body, which is convenient for the movement of the discharge pipe and can discharge the material better. Furthermore, when the amount of scraps to be processed is large, multiple balers are arranged below the discharge pipe. At this time, when one of the balers is performing compression and packaging, the discharge pipe is moved to the top of another baler to ensure the continuity of the work.

[0023] Preferably, it also includes a control component, the unloading plate and the connecting valve are automatic valves, and the driving member, the gravity sensor, the sub-conveying fan, the connecting valve, the main conveying fan and the distance sensor are all connected to the control component signal.

[0024] To ensure the continuity of transportation work, the main conveying fan usually needs to be kept on all the time. After setting the control component, the main conveying fan can be connected with the drive parts, gravity sensors, sub-conveying fans and connecting valve signals in each collection device, so that the main conveying fan and each collection device are linked. When any collection device is carrying out transportation work, the main conveying fan is turned on to work, otherwise it is turned off and on standby, thereby saving electricity. The signal connection adopts wireless connection, such as Bluetooth connection or WiFi connection, etc. At the same time, each drive part needs to be connected to a control part with wireless data transmission function, such as a control chip or a PLC with a wireless transmission module.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] A collecting device is provided to crush the scraps generated at each workstation and transport them to the main transport pipe, and then the scraps are collected and transported to the discharging device for discharging through the main transport fan, thereby realizing the transportation and collection of the scraps and saving manpower. At the same time, the main transport pipe can be flexibly set up, the footprint is relatively small, the cost is relatively low, and it is economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of an implementation structure of the automatic paper scrap collection system of the utility model;

[0028] Figure 2It is a schematic diagram of another implementation structure of the automatic paper scrap collection system of the utility model;

[0029] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0030] Figure 4 The utility model is a schematic diagram of the installation structure of a discharge plate, a driving member and a gravity sensor of an automatic paper scrap collection system.

[0031] In the figure: 1. main transport pipe; 101. corner; 2. collecting device; 201. paper shredding equipment; 202. collecting part; 203. sub-transport pipe; 204. sub-transport fan; 205. connecting valve; 206. gravity sensor; 207. unloading plate; 208. driving part; 3. main conveying fan; 4. discharging device; 401. box body; 402. baffle plate; 4021. inclined plate; 4022. horizontal plate; 403. discharging pipe; 404. air outlet; 405. channel; 406. flexible joint; 5. blockage removal part; 6. distance sensor; 7. baler; 8. control component; 9. fixed bracket. DETAILED DESCRIPTION

[0032] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0035] Example 1

[0036] like Figure 1As shown, the automatic collection system for paper scraps includes: a main transport pipe 1, a plurality of collection devices 2 connected to the main transport pipe 1 and used for inputting scraps, a main transport fan 3 installed on the main transport pipe 1, and a discharge device 4 connected to the end of the main transport pipe 1; the collection device 2 includes a paper shredding device 201, a collection piece 202 arranged below the paper shredding device 201 and a sub-transport pipe 203 with one end connected to the collection piece 202; the other end of the sub-transport pipe 203 is connected to the main transport pipe 1.

[0037] The main transport pipe 1 is used to connect each workstation that produces scraps. Each workstation is provided with a collecting device 2. When scraps are produced, the worker puts the scraps into the shredding device 201 of the collecting device 2. The shredded scraps fall into the collecting part 202, and then fall into the sub-transport pipe 203. Then, the main transport fan 3 transports the scraps in the sub-transport pipe 203 to the discharging device 4 through the main transport pipe 1. After discharging, the shredded paper is packed in bags, or the shredded paper is compressed and packed by other equipment, thereby realizing the automatic transportation and collection of scraps, eliminating the process of manual collection and handling, saving labor, and improving the efficiency of transportation and collection of scraps. According to the arrangement distance of each collecting device 2, the number of main transport fans 3 can be appropriately increased to ensure the smooth transportation of scraps. At the same time, the main transport fan 3 can be normally opened or intermittently opened for transportation. The paper shredding device 201 is used to first shred the generated scraps, and then input the shredded scraps into the sub-transport pipe 203, so that the collection system can be applied to the transportation of scraps of various paper types and sizes, and it is also easier to transport after shredding.

[0038] The beneficial effects of this embodiment are as follows: a collecting device 2 is provided to crush the scraps generated at each workstation and transport them to the main transport pipe 1, and then the scraps are uniformly collected and transported to the discharging device 4 for discharging through the main transport fan 3, thereby realizing the transportation and collection of the scraps and saving manpower. At the same time, the main transport pipe 1 can be flexibly set up, the footprint is relatively small, the cost is relatively low, and it is economical and practical.

[0039] Example 2

[0040] Based on Example 1, the difference from Example 1 is that:

[0041] like Figure 2 and Figure 4As shown, the collecting device 2 also includes a discharge plate 207 rotatably mounted at the bottom of the collecting member 202, a driving member 208 connected to the collecting member 202 and used to drive the discharge plate 207 to open, a sub-transport fan 204 and a connecting valve 205 respectively mounted on the sub-transport pipe 203, and the connecting valve 205 is located between the sub-transport fan 204 and the main transport pipe 1. The collecting device 2 also includes a gravity sensor 206 connected to the discharge plate 207, and the gravity sensor 206 is used to weigh the weight of the scraps. Figure 2 As shown, the main transport pipe 1 includes a plurality of corners 101, each of which is provided with a blockage discharge port, and a blockage discharge member 5 for closing the blockage discharge port is connected to the corner 101. A detection device connected to the corner 101 and used to detect a blockage condition is also included, and the detection device includes a distance sensor 6 connected to the corner 101. The detection head of the distance sensor 6 is arranged from the upper part of the corner 101 toward the lower part.

[0042] A discharge plate 207 is provided at the bottom of the collecting member 202. When a certain amount of scraps are collected, the discharge plate 207 and the connecting valve 205 are opened at the same time, and the sub-transporting fan 204 is started. The sub-transporting fan 204 blows the scraps from the sub-transporting pipe 203 into the main transporting pipe 1 to prevent the scraps from being blocked in the sub-transporting pipe 203. Specifically, the discharge plate 207 is rotated downward and opened under the drive of the driving member 208, so that the scraps fall into the sub-transporting pipe 203. The driving member 208 is installed in the collecting member 202, one end is connected to the collecting member 202, and the other end is connected to the discharge plate 207. The driving member 208 preferably uses a cylinder. The connecting valve 205 is used to prevent the scraps in the main transporting pipe 1 from flowing back into the sub-transporting pipe 203. A gravity sensor 206 is provided to detect the weight of the scraps collected in the collecting member 202. When the set weight is reached, the discharge plate 207 and the connecting valve 205 are opened together, and the sub-transporting fan 204 is started to transport the scraps away. Specifically, the gravity sensor 206 is installed on the plate surface of the discharge plate 207. The corner portion 101 is provided to meet the arbitrary laying of the main transport pipe 1. The main transport pipe 1 can be bent or lifted to meet the laying of the main transport pipe 1 in different plant areas; and in the transportation process, the scraps are easily accumulated at the corner, and then the corner portion 101 is provided with a blocking port, and a blocking member 5 is provided at the blocking port. When transporting the scraps, the blocking member 5 covers the blocking port, and the conveying work is stopped when the corner portion 101 is blocked, and the blocking member 5 is opened to clean the scraps. Further, the corner angle of the corner portion 101 should be greater than or equal to 90° and less than 180°. Further, the blocking member 5 is rotatably installed on the corner portion 101. The distance sensor 6 in the detection device detects whether the corner 101 is blocked. Specifically, when the distance detected by the distance sensor 6 does not change within the set time and the distance is lower than the set distance, it is determined that the corner 101 is blocked; when the main conveying fan 3 is not working and the corner 101 is not blocked, the distance detected by the distance sensor 6 is greater than the set distance and will not be judged as blocked; when the main conveying fan 3 is working and the corner 101 is not blocked, the scraps continue to pass through the corner 101, and the distance detected by the distance sensor 6 is constantly changing, and will not be judged as blocked. The detection head of the distance sensor 6 is set above the gravity direction and monitors downward to reduce the probability of scraps adhering to the detection head of the distance sensor 6 and avoid misjudgment of the distance sensor 6.

[0043] The remaining features and working principles of this embodiment are consistent with those of Embodiment 1.

[0044] Example 3

[0045] like Figure 2-4 As shown, based on Example 1 or Example 2, Example 1 or Example 2 is further limited, and the difference is that:

[0046] The discharging device 4 includes a box body 401 connected to the main transport pipe 1, a baffle plate 402 installed inside the box body 401, and a discharging pipe 403 connected to the bottom of the box body 401. The baffle plate 402 includes an inclined plate 4021 arranged obliquely, and the projection of the inclined plate 4021 in the direction of the main transport pipe 1 covers the port of the main transport pipe 1. An air outlet 404 is provided at the top of the box body 401, and a channel 405 for circulating air flow is provided between the baffle plate 402 and the box body 401, and the air outlet 404 and the channel 405 do not overlap in the vertical direction. A baler 7 for packing scraps is provided below the discharging pipe 403. It also includes a control component 8, the unloading plate 207 and the connecting valve 205 are both automatic valves, and the driving member 208, the gravity sensor 206, the sub-transporting fan 204, the connecting valve 205, the main conveying fan 3 and the distance sensor 6 are all connected to the control component 8 signal.

[0047] After the scraps are blown out of the main transport pipe 1, they are hit onto the plate surface of the inclined plate 4021, and then fall into the discharge pipe 403 under the action of gravity, and then discharged; specifically, the two sides of the baffle plate 402 are fixedly connected to the box body 401, and a fixing bracket 9 for further fixing the baffle plate 402 is also provided in the box body 401. The air outlet 404 is provided to divert the conveying airflow, reduce the airflow intensity of the discharge pipe 403, and prevent the scraps from being blown away when discharging. A baler 7 is provided below the discharge pipe 403 to collect and pack the scraps. Specifically, a waste paper baler 7 is selected, and a collection frame for collecting waste paper is provided on the machine. The discharge pipe 403 is arranged above the collection frame. When a certain amount of scraps are collected, the waste paper baler 7 compresses and packs the waste paper. Further, a flexible joint 406 is connected to the bottom of the box body 401, and the discharge pipe 403 is installed on the flexible joint 406. The discharge pipe 403 is a flexible pipe. The discharge pipe 403 adopts a flexible pipe, and a flexible joint 406 is provided for the connection between the discharge pipe 403 and the box body 401, so as to facilitate the movement of the discharge pipe 403 and better discharge. Furthermore, when the amount of scraps to be processed is large, multiple balers 7 are provided below the discharge pipe 403. At this time, when one of the balers 7 is performing compression and baling, the discharge pipe 403 is moved to the top of another baler 7 to ensure the continuity of the work. In order to ensure the continuity of the transportation work, the main conveying fan 3 usually needs to be kept turned on at all times. After the control component 8 is provided, the main conveying fan 3 can be connected to the drive member 208, the gravity sensor 206, the sub-conveying fan 204 and the connecting valve 205 in each collecting device 2 by signal, so that the main conveying fan 3 is linked with each collecting device 2. When any collecting device 2 is performing the conveying work, the main conveying fan is turned on again to work, otherwise it is turned off and on standby, thereby saving electricity. The signal connection adopts a wireless connection, such as a Bluetooth connection or a WiFi connection, etc. At the same time, each driving component 208 needs to be connected to a control component with a wireless data transmission function, such as a control chip or a PLC with a wireless transmission module.

[0048] like Figure 3 As shown, the material blocking plate 402 further includes a horizontal plate 4022 connected to the inclined plate 4021 , and the horizontal plate 4022 is used to block the air outlet 404 in the vertical direction to prevent the scraps from being blown out from the air outlet 404 .

[0049] In this embodiment, the control component 8 is arranged on a floor stand, including a control unit and a display screen, and is arranged on a side close to the baler 7 to facilitate workers to operate and observe the blockage of the corner 101 in real time.

[0050] The rest of the working principle and working process of this embodiment are consistent with those of Embodiment 1 or Embodiment 2.

[0051] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. Automatic paper scrap collection system, characterized by: include: A main transport pipe (1), a plurality of collecting devices (2) connected to the main transport pipe (1) and used for inputting scraps, a main conveying fan (3) installed on the main transport pipe (1), and a discharging device (4) connected to the end of the main transport pipe (1); the collecting device (2) comprises a paper shredding device (201), a collecting piece (202) arranged below the paper shredding device (201), and a sub-transport pipe (203) connected to the collecting piece (202) at one end; the other end of the sub-transport pipe (203) is connected to the main transport pipe (1).

2. The automatic paper scrap collection system according to claim 1, characterized in that: The collecting device (2) further comprises a discharge plate (207) rotatably mounted at the bottom of the collecting member (202), a driving member (208) connected to the collecting member (202) and used to drive the discharge plate (207) to open, a sub-conveying fan (204) and a connecting valve (205) respectively mounted on the sub-conveying pipe (203), and the connecting valve (205) is located between the sub-conveying fan (204) and the main transport pipe (1).

3. The automatic paper scrap collection system according to claim 2, characterized in that: The collecting device (2) further comprises a gravity sensor (206) connected to the discharge plate (207), wherein the gravity sensor (206) is used to weigh the scraps.

4. The automatic paper scrap collection system according to claim 3 is characterized by: The main transport pipe (1) comprises a plurality of corner portions (101), each of the corner portions (101) being provided with a blockage removal opening, and the corner portions (101) being connected to a blockage removal member (5) for closing the blockage removal opening.

5. The automatic paper scrap collection system according to claim 4 is characterized in that: It also includes a detection device connected to the corner portion (101) and used to detect a blockage situation, wherein the detection device includes a distance sensor (6) connected to the corner portion (101).

6. The automatic paper scrap collection system according to claim 5, characterized in that: The detection head of the distance sensor (6) is arranged from the upper part toward the lower part of the corner part (101).

7. The automatic paper scrap collection system according to claim 5, characterized in that: The discharge device (4) comprises a box body (401) connected to the main transport pipe (1), a baffle plate (402) installed inside the box body (401), and a discharge pipe (403) connected to the bottom of the box body (401), wherein the baffle plate (402) comprises an inclined plate (4021) arranged obliquely, and the projection of the inclined plate (4021) in the direction of the main transport pipe (1) covers the port of the main transport pipe (1).

8. The automatic paper scrap collection system according to claim 7, characterized in that: An air outlet (404) is provided at the top of the box body (401), and a channel (405) for circulating air flow is provided between the baffle plate (402) and the box body (401), and the air outlet (404) and the channel (405) do not overlap in the vertical direction.

9. The automatic paper scrap collection system according to claim 8, characterized in that: A baler (7) for baling leftover materials is provided below the discharge pipe (403).

10. The automatic paper scrap collection system according to any one of claims 5 to 9, characterized in that: It also includes a control component (8), the unloading plate (207) and the connecting valve (205) are both automatic valves, and the driving member (208), the gravity sensor (206), the sub-conveying fan (204), the connecting valve (205), the main conveying fan (3) and the distance sensor (6) are all connected to the control component (8) by signals.

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