A cut paper powder suction type recycling device

Abstract

This utility model belongs to the field of powder recycling technology, and in particular to a paper-cutting powder suction recycling device, including a recycling chamber located on a worktable directly below the cutter holder with an inlet on the side closest to the cutter holder; a negative pressure device connected to the recycling chamber via a negative pressure pipe to provide a negative pressure environment for the recycling chamber; a filter screen installed inside the negative pressure pipe to filter paper-cutting powder in the airflow and prevent powder from entering the negative pressure device; a distance sensor to monitor the distance between the cutter holder and the worktable; and a controller to control the operating status of the negative pressure device based on the distance signal from the cutter holder to the worktable monitored by the distance sensor. When the distance between the cutter holder and the worktable is less than a preset threshold, the operating power of the negative pressure device is increased to quickly absorb paper dust as it is generated. When the distance is greater than or equal to the preset threshold, the operating power of the negative pressure device is reduced to prevent the strong suction from affecting the airflow environment around the paper, thereby ensuring paper positioning accuracy and cutting accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of powder recycling technology, specifically relating to a paper cutting powder suction recycling device. Background Technology

[0002] Paper is made from plant fibers and other materials, and there is a certain bonding force between the fibers. When the blades of a paper cutter cut paper, friction occurs between the blades and the paper surface during the high-speed cutting process. Especially for some papers with short fibers and loose texture, the high-speed cutting action of the blades may break the bonding force between the fibers, causing some fibers to break into fine particles, thus producing paper dust. Paper dust not only clogs equipment parts and affects the cutting accuracy, but also increases the burden of manual cleaning. Usually, dust suction ports can be installed around the blades of the paper cutter to remove the paper dust as it is generated, reducing the spread of paper dust in the working environment.

[0003] However, when a suction port is set at the blade to collect paper dust, the suction force generated by the vacuum cleaner may change the airflow environment around the paper and affect the positioning accuracy of the paper. Especially for thinner paper, it may move closer to the suction port when subjected to suction, thus affecting the cutting of the paper. If the power of the vacuum cleaner is reduced, although it can avoid affecting the cutting of the paper, it will affect the paper dust recycling effect. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a paper-cutting powder suction recycling device to solve the problems mentioned in the background art.

[0005] This utility model provides a paper-cutting powder suction-type recovery device, including a recovery chamber located on a workbench directly below the cutter holder, with an inlet on the side near the cutter holder for accommodating powder generated during paper cutting; a negative pressure device connected to the recovery chamber via a negative pressure pipe to provide a negative pressure environment for the recovery chamber to suck in the powder generated during paper cutting; a filter screen installed inside the negative pressure pipe to filter paper-cutting powder in the airflow and prevent powder from entering the negative pressure device; a distance sensor installed on the cutter holder for real-time monitoring of the distance between the cutter holder and the workbench; and a controller electrically connected to the distance sensor and the negative pressure device for controlling the operating status of the negative pressure device based on the distance signal from the cutter holder to the workbench monitored by the distance sensor.

[0006] Preferably, it further includes: a baffle, movably installed inside the recovery chamber for adjusting the opening of the inlet; an electric telescopic rod, connected to the baffle for driving the baffle to move, and electrically connected to the controller; when the distance sensor detects that the distance between the tool holder and the worktable is less than a preset threshold, the controller increases the operating power of the negative pressure equipment and simultaneously controls the electric telescopic rod to increase the opening of the inlet; when the distance is greater than or equal to the preset threshold, the controller decreases the operating power of the negative pressure equipment and simultaneously controls the electric telescopic rod to decrease the opening of the inlet.

[0007] Preferably, it also includes a second distance sensor, which is installed at the end of the baffle away from the electric telescopic rod, for real-time monitoring of the distance from the baffle to the inner side wall of the recovery chamber. The second distance sensor is electrically connected to the controller, and the controller controls the operation of the electric telescopic rod according to the distance signal provided by the second distance sensor.

[0008] Preferably, the negative pressure pipe is detachably connected to the workbench.

[0009] Preferably, the filter screen is installed at an angle.

[0010] Preferably, there are two ranging sensors, which are mounted opposite each other on the tool holder.

[0011] The beneficial effects of this invention are as follows: A distance sensor monitors the distance between the blade holder and the worktable in real time and transmits the signal to the controller. The controller then controls the operation of the negative pressure device based on this distance signal. When the distance between the blade holder and the worktable is less than a preset threshold, the operating power of the negative pressure device is increased, allowing for rapid adsorption of paper dust as it is generated, effectively preventing the large-scale diffusion of paper dust in the working environment. When the distance is greater than or equal to the preset threshold, the operating power of the negative pressure device is reduced, avoiding unnecessary energy consumption, extending the service life of the negative pressure device, and preventing the continuous strong suction from affecting the airflow environment around the paper, thereby ensuring paper positioning accuracy. This is especially important for maintaining stability and ensuring cutting accuracy when cutting thin paper. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the first cross-sectional structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the second cross-sectional structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the third cross-sectional structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the fourth cross-sectional structure of this utility model.

[0017] In the diagram: 1. Recycling chamber; 2. Knife holder; 3. Inlet; 4. Negative pressure device; 5. Negative pressure pipe; 6. Filter screen; 7. Distance sensor one; 8. Controller; 9. Baffle; 10. Electric telescopic rod; 11. Distance sensor two; 12. Guide roller; 13. Guide roller; 14. Paper feeding table; 15. Drive device; 16. Workbench. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0019] Existing paper-cutting powder suction-type recovery devices mainly include a suction head mounted on the blade holder 2 and a suction assembly connected to the suction head via a pipe. The suction assembly can be a suction fan. During use, the suction head moves with the up-and-down reciprocating movement of the blade holder 2. Multiple suction heads can be set and evenly located on both sides of the blade holder 2. During paper cutting, the roll of paper is conveyed to the paper cutting worktable 16 under the action of the guide roller 12 and the guide roller 13. When the drive device 15 drives the blade holder 2 to fall and cut the paper conveyed from the paper feeding table 14, the suction head removes the powder generated during paper cutting. Adsorption is possible, but in the application of the above-mentioned suction-type recycling device, the suction component is always in operation. When the paper is conveyed to the cutting equipment along the guide roller 12 and guide roller 13, the paper conveyed from the paper feeding table 14 is suspended in the air. The suction force generated by the suction head and suction component may change the airflow environment around the paper and affect the positioning accuracy of the paper. Especially for thinner paper, it may drift towards the suction head when subjected to suction, thereby affecting the cutting of the paper. If the power of the suction equipment is reduced, although it can avoid affecting the cutting of the paper, it will affect the effect of paper waste recycling.

[0020] To solve the above-mentioned technical problems, this utility model provides the following solutions, such as... Figure 1-5As shown, a paper-cutting powder suction-type recovery device includes a recovery chamber 1 located on a workbench 16 directly below a cutter holder 2, with an inlet 3 on the side closest to the cutter holder 2. This recovery chamber 1 is used to contain powder generated during the paper-cutting process. A negative pressure device 4, located below the workbench 16 and connected to the recovery chamber 1 via a negative pressure pipe 5, provides a negative pressure environment to the recovery chamber 1 to draw in the powder generated during paper cutting. The negative pressure device 4 can be a vacuum pump, fan, etc. A filter screen 6 is installed inside the negative pressure pipe 5 to filter the paper-cutting powder in the airflow, preventing the powder from entering the negative pressure device 4. In addition, a distance sensor 7 is installed on the cutter holder 2 to monitor the distance between the cutter holder 2 and the workbench 16 in real time. Distance sensor 7 is located on the side of the blade holder 2 away from the paper feed table 14. Distance sensor 7 and negative pressure device 4 are both electrically connected to controller 8. Controller 8 controls the operating state of negative pressure device 4 based on the distance signal between the blade holder 2 and the worktable 16 monitored by distance sensor 7. Specifically, when distance sensor 7 detects that the distance between the blade holder 2 and the worktable 16 is less than a preset threshold—for example, initially, the distance between distance sensor 7 and the upper surface of the worktable 16 is 1 meter; after the drive device 15 drives the blade to fall and cut the paper, the distance between distance sensor 7 and the upper surface of the worktable 16 is 0.4 meters—when distance sensor 7 detects that the distance between the blade holder 2 and the worktable 16 is less than or equal to 0.4 meters, i.e., when the drive device 15 (e.g., ...) controls the operation of negative pressure device 4... Figure 3 As shown, the drive device 15 (a hydraulic cylinder) of the knife holder 2 drives the knife holder 2 and the blade to fall and cut the paper. At this time, the operating power of the negative pressure device 4 is increased, and the paper completes one cut. This avoids the negative pressure generated by the negative pressure device 4 from affecting the position of the paper and thus affecting the paper cutting. When the distance is greater than or equal to 0.4, the drive device 15 drives the knife holder 2 and the blade to rise, and the guide roller 12 and the guide roller 13 are feeding the paper to the paper feeding table 14. At this time, the operating power of the negative pressure device 4 can be stopped or reduced to prevent the paper from drifting due to the attraction of the negative pressure device 4. In this technical solution, in order to save the energy consumption of the negative pressure device 4, the operating power of the negative pressure device 4 can be reduced. To improve the overall performance and stability of the recycling device, two distance sensors 7 are installed opposite each other on the cutter holder 2. This allows for monitoring of the distance from the cutter holder 2 to the worktable 16 from different positions, reducing measurement errors or blind spots that may occur with a single sensor. This improves the accuracy of the controller 8 in controlling the operating status of the negative pressure equipment 4, thereby enhancing the overall performance and stability of the recycling device. Furthermore, the two distance sensors 7 increase monitoring redundancy; even if one sensor fails, the other can still function normally, providing the controller 8 with an effective distance signal, ensuring the normal operation of the device, and improving its reliability and safety.

[0021] Furthermore, such as Figure 2-4As shown, although this technical solution reduces the operating power of the negative pressure device 4 to minimize the impact on paper cutting accuracy, to further reduce the impact of airflow on paper cutting accuracy, a baffle 9 can be movably installed in the recycling chamber 1. This baffle 9 is driven by an electric telescopic rod 10. A second distance sensor 11 is installed at the end of the baffle 9 away from the electric telescopic rod 10 to monitor the distance from the baffle 9 to the inner wall of the recycling chamber 1 in real time. The second distance sensor 11 is electrically connected to the controller 8. Both the first distance sensor 7 and the second distance sensor 11 in this technical solution can be ultrasonic or laser distance sensors. The controller 8 determines the distance based on the distance provided by the second distance sensor 11. The operation of the electric telescopic rod 10 is controlled by a signal. Specifically, in the initial state, the baffle 9 is located at the inlet 3, away from the recovery chamber 1. At this time, the distance sensor 11 detects that the distance from the baffle 9 to the inner wall of the recovery chamber 1 is 0.5 meters. When the controller 8 reduces the operating power of the negative pressure device 4, the controller 8 controls the electric telescopic rod 10 to move the baffle 9 0.4 meters closer to the inlet 3, reducing the opening of the inlet 3. This allows for the absorption of fine paper dust around the inlet 3 while avoiding affecting paper cutting. When the controller 8 increases the operating power of the negative pressure device 4, it controls the electric telescopic rod 10 to move the baffle 9 0.4 meters further away from the inlet 3, increasing the opening of the inlet 3 for better adsorption of paper dust. Figure 2 As shown, the recycling chamber 1 is shaped like a "7". The width of the recycling chamber 1 is slightly larger than the width of the paper, which can cover the paper dust around the paper. The electric telescopic rod 10 and the baffle 9 are located at the top of the recycling chamber 1. The thickness of the baffle 9 is adapted to the top position of the recycling chamber 1. When the electric telescopic rod 10 moves the baffle 9, the side wall of the baffle 9 slides along the inner side wall of the recycling chamber 1, which can intercept the paper dust, so that the paper dust falls directly into the negative pressure pipe 5 along the recycling chamber 1. After being filtered by the filter screen 6, the paper dust is retained on the upper surface of the filter screen 6 (a non-woven fabric filter screen 6 or a filter screen 6 of other materials can be used, and the pore size of the filter screen 6 can be set according to the size of the paper dust). Clean air flows along the outlet of the negative pressure device 4. The filter screen 6 is installed at an angle to facilitate the smooth flow of paper dust in the airflow along the surface of the filter screen 6 under gravity, allowing it to be collected at the lowest point and reducing dust accumulation and clogging. This ensures the air permeability and filtration efficiency of the filter screen 6. To facilitate cleaning of paper dust from the negative pressure pipe 5, the negative pressure pipe 5 is detachably connected to the workbench 16, for example, by bolts or other means. When cleaning, replacement, or maintenance of the negative pressure pipe 5 is required, the operator can easily remove the negative pressure pipe 5 from the workbench 16. A rubber sealing sheet is installed between the negative pressure pipe 5 and the workbench 16 to ensure the airtightness between the negative pressure pipe 5 and the recovery chamber 1.

[0022] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of this utility model. The above examples are merely to aid in understanding the method and core ideas of this utility model. The above descriptions are only preferred embodiments of this utility model. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of this utility model, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this utility model.

Claims

1. A cut paper powder suction recovery device characterized by: include: The recycling chamber (1) is located on the workbench (16) directly below the knife holder (2) and has an inlet (3) on the side closest to the knife holder (2) to contain the powder generated during the paper cutting process; The negative pressure device (4) is connected to the recovery chamber (1) via a negative pressure pipe (5) to provide a negative pressure environment for the recovery chamber (1) to suck up the powder generated during the paper cutting process; A filter screen (6) is installed inside the negative pressure pipe (5) to filter paper cutting powder in the airflow and prevent the powder from entering the negative pressure device (4). Distance sensor 1 (7) is installed on the tool holder (2) to monitor the distance from the tool holder (2) to the worktable (16) in real time; The controller (8) is electrically connected to the distance sensor (7) and the negative pressure device (4) and is used to control the operating status of the negative pressure device (4) based on the distance signal from the tool holder (2) to the worktable (16) monitored by the distance sensor (7).

2. A cut paper powder suction-type recycling device according to claim 1, characterized in that: Also includes: A baffle (9) is movably installed inside the recovery chamber (1) to adjust the opening of the inlet (3); An electric telescopic rod (10) is connected to the baffle (9) for driving the baffle (9) to move, and is electrically connected to the controller (8); When the distance sensor 1 (7) detects that the distance between the tool holder (2) and the worktable (16) is less than a preset threshold, the controller (8) increases the operating power of the negative pressure device (4) and controls the electric telescopic rod (10) to increase the inlet (3); when the distance is greater than or equal to the preset threshold, the controller (8) decreases the operating power of the negative pressure device (4) and controls the electric telescopic rod (10) to decrease the inlet (3).

3. The paper-cutting powder suction-type recycling device according to claim 2, characterized in that: It also includes a second distance sensor (11), which is installed at the end of the baffle (9) away from the electric telescopic rod (10) and is used to monitor the distance from the baffle (9) to the inner wall of the recovery chamber (1) in real time. The second distance sensor (11) is electrically connected to the controller (8), and the controller (8) controls the operation of the electric telescopic rod (10) according to the distance signal provided by the second distance sensor (11).

4. The paper-cutting powder suction-type recycling device according to claim 1, characterized in that: The negative pressure pipe (5) is detachably connected to the workbench (16).

5. The paper-cutting powder suction-type recycling device according to claim 1, characterized in that: The filter screen (6) is installed at an angle.

6. The paper powder suction recycling device according to claim 1, characterized in that: The number of the distance measuring sensor (7) is two, and the two distance measuring sensors (7) are mounted opposite each other on the tool holder (2).

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