A mechanical device and working method for efficiently grinding and recycling paper

Abstract

The application discloses a kind of paper high-efficiency grinding word and secondary utilization mechanical device and working method, solve the problem of paper removing ink equipment pollution environment in prior art, with the beneficial effect of environmental protection, ink removal effect is good, specific scheme is as follows: a kind of paper high-efficiency grinding word and secondary utilization mechanical device, including shell, shell sets into inlet;Paper taking mechanism is set in the lower side of inlet in shell, paper taking mechanism includes paper rubbing roller, paper rubbing roller is rotatable relative to shell, paper rubbing roller is set with interval distance between inlet, support plate is obliquely arranged in shell, friction part is arranged on the side of support plate towards paper rubbing roller, first passageway is formed between friction part and paper rubbing roller, one end of support plate setting friction part and the inner surface of shell first side wall form second passageway;Paper surface scanner;Flat input mechanism includes rotatable pressure roller and heating roller, heating roller is provided with heating mechanism;At least one polishing mechanism, polishing mechanism present for rotatable shell.

Description

Technical Field

[0001] This invention relates to the field of environmentally friendly printing machinery, and in particular to a mechanical device and working method for efficiently grinding characters onto paper and reusing it. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Generally, used printing paper is considered waste paper and processed. Current processing methods typically involve recycling the waste paper and sending it to processing plants for pulp reprocessing. However, the waste paper recycling process requires the use of large amounts of chemical agents for ink removal, leading to high reuse costs and posing a serious threat to the environment.

[0004] Existing technologies include paper direct ink removal and reuse devices. The cam of the paper feeding mechanism applies unidirectional friction force, which can easily cause multiple sheets of paper to be fed into the device at the same time, resulting in paper jams. The heating plate and the ink scraping mechanism work together to scrape off the toner, which removes ink stains to a certain extent. However, since the ink stains are stubbornly attached to the paper, they need to be scraped off repeatedly, which consumes a lot of energy and is inefficient.

[0005] The inventors discovered that existing paper de-inking devices have the following problems:

[0006] 1. Environmental pollution: Some paper ink removal devices on the market currently achieve the effect of ink removal by spraying chemicals, which causes environmental pollution.

[0007] 2. Unsatisfactory results: Existing paper ink removal equipment has certain limitations in ink removal effectiveness. For A4 printing paper, the ink removal effect is not thorough enough; some ink stains or traces may still remain on the paper after ink removal, failing to achieve a complete ink removal effect and rendering the paper unusable for reuse.

[0008] 3. Limited scope of application: Existing paper de-inking equipment is mainly for de-inking individual characters, but cannot thoroughly de-ink the entire sheet of paper, which limits its wide range of applications.

[0009] 4. Complex structure: The complex structure results in high energy consumption of the entire device and a large footprint. Summary of the Invention

[0010] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a mechanical device for efficient paper printing and secondary use, so as to achieve efficient ink removal and secondary use of paper.

[0011] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0012] A mechanical device for efficiently grinding type on paper and reusing it includes:

[0013] The housing has a feed inlet.

[0014] The paper feeding mechanism is located below the feed inlet inside the housing. The paper feeding mechanism includes a paper feeding roller, which is rotatable relative to the housing. The paper feeding roller is spaced apart from the feed inlet. A support plate is inclinedly arranged inside the housing. A friction part is provided on the side of the support plate facing the paper feeding roller. A first channel is formed between the friction part and the paper feeding roller. A second channel is formed between the end of the support plate where the friction part is provided and the inner surface of the first side wall of the housing.

[0015] A paper surface scanner, fixed to the housing, is positioned on the side below the second channel to obtain wrinkle data of the paper surface;

[0016] The leveling input mechanism is supported by a housing and positioned diagonally below the paper surface scanner. The leveling input mechanism includes a rotatable pressure roller and a heating roller. The pressure roller is connected to a pressure adjustment mechanism to adjust the pressure between the pressure roller and the heating roller. The heating roller is equipped with a heating mechanism.

[0017] At least one sanding mechanism is provided, which is rotatable relative to the housing. A paper channel is formed between the sanding mechanism and the inner surface of the first side wall of the housing. The housing has a discharge port on the side of one of the sanding mechanisms.

[0018] The controller, paper surface scanner, pressure adjustment mechanism, heating mechanism, and polishing mechanism are each connected to the controller individually. The controller converts the acquired wrinkle data of the paper surface into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper.

[0019] As described above, in the mechanical device, the housing enters the paper feeding mechanism through the feed port. The friction part cooperates with the paper feeding roller to ensure that only one sheet of paper enters the second channel through the first channel. The paper surface scanner sends the wrinkle data of the paper surface to the controller. The controller can process the wrinkle data of the paper surface and convert it into the maximum pressure required to flatten the paper and the maximum temperature required to iron the paper. This controls the operation of the pressure adjustment mechanism and the heating mechanism, so that the flattening input mechanism flattens and irons the paper. Finally, the paper surface is polished by the polishing mechanism and then sent to the discharge port of the housing.

[0020] The above-described mechanical device for efficiently grinding and reusing paper includes a first grinding mechanism and a second grinding mechanism arranged vertically. The first grinding mechanism performs coarse grinding on the paper surface to loosen the ink marks, while the second grinding mechanism performs fine grinding on the paper surface to grind the ink marks and burrs on the paper surface into dust.

[0021] The housing is provided with a positioning and pressing mechanism between the first and second polishing mechanisms. The positioning and pressing mechanism facilitates the smooth delivery of paper to the second polishing mechanism.

[0022] As described above, a mechanical device for efficient paper grinding and secondary use includes a positioning and pressing mechanism comprising a first flexible roller movably supported by the housing. The first flexible roller is provided with multiple first protrusions in a circumferential manner. The arrangement of the first protrusions helps to increase the friction between the first flexible roller and the paper, ensuring stable paper transport.

[0023] The positioning and pressing mechanism is spaced apart from the inner surface of the first side wall of the housing to form a channel for paper movement;

[0024] The distance between the positioning and pressing mechanism and the first grinding mechanism is 110-140mm.

[0025] As described above, a mechanical device for efficient paper grinding and secondary use includes a paper pressing mechanism supported by the housing. The paper pressing mechanism is located between the flattening input mechanism and the first grinding mechanism. The paper pressing mechanism allows the flattening input mechanism to smoothly transport the paper to the first grinding mechanism.

[0026] The distance between the paper pressing mechanism and the flattening input mechanism is greater than the distance between the paper pressing mechanism and the first polishing mechanism.

[0027] As described above, a mechanical device for efficient paper grinding and secondary use includes a paper pressing mechanism comprising a second flexible roller movably supported by the housing. The second flexible roller is provided with multiple second protrusions in a circumferential manner. The arrangement of the second protrusions helps to increase the friction between the second flexible roller and the paper, ensuring stable paper transport.

[0028] The paper pressing mechanism is spaced apart from the inner surface of the first side wall of the housing.

[0029] The mechanical device described above for efficient paper grinding and secondary use includes a grinding wheel and a grinding cylinder as both the first grinding mechanism and the second grinding mechanism.

[0030] The mesh size of the first polishing mechanism is smaller than that of the second polishing mechanism.

[0031] As described above, a mechanical device for efficient paper grinding and secondary use includes an air duct on the side of the housing of the second grinding mechanism, a fan at the air duct, and a dust collection box connected to the air duct. The dust collection box is located diagonally below the second grinding mechanism and collects the mixed dust of ink stains and burrs to prevent environmental pollution.

[0032] The mechanical device for efficient paper grinding and secondary utilization as described above also includes a flattening output mechanism. The flattening output mechanism includes a first roller and a second roller. The first roller and the second roller are supported by a housing and are rotatable relative to the housing to feed the paper into the discharge port.

[0033] The distance between the second roller and the second grinding mechanism is greater than or equal to the distance between the second grinding mechanism and the positioning and pressing mechanism.

[0034] The paper-grinding and reuse mechanical device described above further includes a guide roller located below the second channel. The guide roller is rotatably fixed to the housing, and a third channel is formed between the guide roller and the inner surface of the first side wall of the housing.

[0035] A baffle is provided on the inner surface of the first side wall of the housing above the paper feed roller, and the baffle is inclined downward relative to the first side wall of the housing.

[0036] Secondly, the present invention also provides a method for operating a mechanical device for efficiently grinding and reusing paper, comprising the following:

[0037] The paper enters the housing through the feed inlet;

[0038] The paper enters the first channel, and then the second channel;

[0039] The paper surface scanner scans the wrinkle data of the paper surface from the paper feeding mechanism and sends it to the controller. The controller converts the acquired wrinkle data of the paper surface into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper.

[0040] The controller controls the action of the pressure regulating mechanism based on the maximum pressure data required for the conversion, and controls the on / off state of the heating mechanism based on the maximum temperature data required for ironing the paper.

[0041] The paper enters the space between the pressure roller 301 and the heating roller through the second channel and is flattened by the pressure roller 301 and the heating roller.

[0042] The sanding mechanism loosens the ink stains on the flattened paper surface and grinds the ink stains and burrs on the paper surface into dust.

[0043] The polished paper enters the shell's discharge port.

[0044] The beneficial effects of the present invention are as follows:

[0045] 1) This invention provides a mechanical device in which the housing enters the paper feeding mechanism through the feed port. The friction part cooperates with the paper feeding roller to ensure that only one sheet of paper enters the second channel through the first channel. The paper surface scanner sends the wrinkle data of the paper surface to the controller. The controller can convert the wrinkle data of the paper surface into the maximum pressure required to flatten the paper and the maximum temperature required to iron the paper. This controls the operation of the pressure adjustment mechanism and the heating mechanism, so that the flattening input mechanism flattens and irons the paper, which is beneficial for subsequent polishing. Finally, the polishing mechanism polishes the paper surface and sends it back to the discharge port of the housing. The overall structure is reasonably designed and can realize the flattening, polishing and collection of waste paper without the need for spraying chemicals, thus reducing environmental pollution.

[0046] 2) This invention utilizes multiple grinding mechanisms, including a first grinding mechanism and a second grinding mechanism, which are arranged vertically. The first grinding mechanism coarsely grinds the paper surface to loosen the ink stains, while the second grinding mechanism finely grinds the paper surface, turning the ink stains and burrs into dust, resulting in a more thorough ink removal effect. Both ink stains and burrs are ground down, and the multiple grinding mechanisms effectively improve the ink removal efficiency.

[0047] 3) The invention, through the setting of the paper pressing mechanism, can ensure that the paper is smoothly fed into the first polishing mechanism, and the setting of the positioning paper pressing mechanism can ensure that the paper is smoothly fed into the second polishing mechanism; the whole device can achieve thorough de-inking treatment of the whole sheet of paper, rather than de-inking modification of individual characters, thus ensuring the application range of the device.

[0048] 4) This invention integrates a paper-taking mechanism, a flattening input mechanism, a grinding mechanism, a paper-pressing mechanism, and a flattening output mechanism into the housing. The paper channel formed between the first channel, the second channel, the third channel, and other mechanisms and the inner surface of the first side wall of the housing defines the device as a vertical structure, making the entire device compact and occupying a small area, which is beneficial for placement in confined spaces. Moreover, the overall structure is reasonably designed, and the maximum pressure for flattening the paper and the maximum temperature required for ironing the paper can be adjusted according to the wrinkles on the paper surface. Grinding the paper after it is flattened is more conducive to the ink removal effect and helps to reduce the energy consumption of the entire device.

[0049] 5) In this invention, the paper feeding mechanism's paper feeding roller rotates to drive the paper forward. The inclined support plate is conducive to separating two adjacent sheets of paper. Moreover, the friction part of the support plate is close to the paper below, and the friction part can apply resistance to the paper to separate the paper, making it easier for the paper feeding roller to feed the paper into the second channel. The second channel guides the direction of paper movement, thereby ensuring that only one sheet of paper moves forward into the second channel and avoiding two sheets of paper being fed in at the same time.

[0050] 6) In this invention, the second polishing mechanism is provided with an air duct on its side, and a fan is provided at the air duct. The dust collection box collects the mixed dust of ink stains and burrs generated, further preventing environmental pollution and making ink removal more green and environmentally friendly. Attached Figure Description

[0051] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0052] Figure 1 This is a schematic diagram of the overall structure of a paper-based efficient printing and secondary utilization method according to one or more embodiments of the present invention.

[0053] Figure 2 This is the present invention. Figure 1 Enlarged view of section A1 in the middle.

[0054] Figure 3 This is an overall cross-sectional view of a mechanical device for efficient paper grinding and secondary utilization according to one or more embodiments of the present invention.

[0055] Figure 4 This is the present invention. Figure 3 Enlarged view of section B in the middle.

[0056] Figure 5 This is the present invention. Figure 3 Enlarged view of a section at point C.

[0057] Figure 6 This is a front view of a mechanical device for efficient paper grinding and secondary utilization according to one or more embodiments of the present invention.

[0058] Figure 7 This is a left view of a mechanical device for efficient paper grinding and secondary utilization according to one or more embodiments of the present invention.

[0059] Figure 8 This is a partially enlarged view of the pressure regulating mechanism in a mechanical device for efficient paper grinding and secondary utilization according to one or more embodiments of the present invention.

[0060] Figure 9 This is a right view of a mechanical device for efficient paper grinding and secondary utilization according to one or more embodiments of the present invention.

[0061] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0062] Wherein: 1. Paper feeding mechanism; 101. Baffle; 102. Paper feeding roller; 103. Friction part; 104. Guide roller; 105. First motor; 106. Feed inlet; 107. Support plate;

[0063] 2. Paper surface scanner; 201. Signal circuit;

[0064] 3. Leveling input mechanism; 301. Pressure roller; 302. Heating roller; 303. Third motor; 304. First deep groove ball bearing; 305. Rotating lead screw; 306. Slider; 307. Side pull rod; 308. Clamping arc groove; 309. Slider inside the arc groove; 310. Side cylindrical head; 311. Terminal block;

[0065] 4. Paper pressing mechanism; 401. Second flexible roller; 402. Fourth deep groove ball bearing; 403. Eighth motor;

[0066] 5. First grinding mechanism; 501. 120-mesh resin diamond coarse grinding wheel; 502. Second deep groove ball bearing; 503. Fifth motor;

[0067] 6. Positioning and pressing mechanism; 601. First flexible roller; 602. Fifth deep groove ball bearing; 603. Ninth motor;

[0068] 7. Second grinding mechanism; 701. 600-mesh resin diamond fine grinding wheel; 702. Third deep groove ball bearing; 703. Sixth motor;

[0069] 8. Dust collection and ink removal mechanism; 801. Fan; 802. Air duct; 803. Seventh motor; 804. Dust collection box;

[0070] 9. Leveling output mechanism; 901. Second roll; 902. Sixth deep groove ball bearing; 903. Tenth motor; 904. First roll;

[0071] 10. Paper collection bin;

[0072] 11. Shell; 111. First sidewall. Detailed Implementation

[0073] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0074] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0075] As described in the background section, existing ink removal equipment suffers from environmental pollution and unsatisfactory ink removal results. In order to solve the above technical problems, this invention proposes a mechanical device for efficient paper grinding and secondary utilization.

[0076] In a typical embodiment of the present invention, reference is made to Figure 1 As shown, a mechanical device for efficiently grinding and reusing paper includes:

[0077] Housing 11, housing 11 is provided with inlet 106;

[0078] The paper feeding mechanism 1 is located below the feed inlet inside the housing 11. The paper feeding mechanism includes a paper feeding roller 102, which is rotatable relative to the housing 11. The paper feeding roller 102 is spaced apart from the feed inlet. A support plate 107 is inclinedly arranged inside the housing. A friction part 103 is provided on the side of the support plate 107 facing the paper feeding roller. A first channel is formed between the friction part 103 and the paper feeding roller 102. A second channel is formed between the end of the support plate where the friction part is provided and the inner surface of the first side wall of the housing.

[0079] Paper surface scanner 2, fixed to the housing, is positioned on the side below the second channel to obtain wrinkle data of the paper surface;

[0080] The leveling input mechanism 3 is supported by the housing 11 and is located diagonally below the paper surface scanner 2. The leveling input mechanism 3 includes a rotatable pressure roller 301 and a heating roller 302. The pressure roller 301 is connected to a pressure adjustment mechanism to adjust the pressure between the pressure roller and the heating roller. The heating roller is equipped with a heating mechanism.

[0081] At least one sanding mechanism is provided, which is rotatable relative to the housing. A paper channel is formed between the sanding mechanism and the inner surface of the first side wall of the housing. The housing has a discharge port on the side of one of the sanding mechanisms.

[0082] The controller, paper surface scanner 2, pressure adjustment mechanism, heating mechanism, and polishing mechanism are each connected to the controller separately. The controller converts the acquired paper surface wrinkle data into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper.

[0083] refer to Figure 3 As shown, the housing 11 is a rectangular frame with a feed inlet of a set width to accommodate a stack of papers. The feed inlet 106 has a first sidewall and a second sidewall on either side. The first sidewall 111 is a solid plate, and the second sidewall is opposite to it. The second sidewall is perforated and connected to a support plate 107, which is inclined towards the first sidewall. (See reference...) Figure 4 As shown, a baffle 101 is provided on the inner surface of the first side wall 111 of the housing above the paper feed roller. The baffle 101 is inclined downward relative to the first side wall 111 of the housing. The extension line of the baffle 101 intersects with the support plate. One side of the baffle 101 is fixed to the first side wall 111 of the housing, and the other side is located at the northeast corner of the paper feed roller 102.

[0084] In this embodiment, the paper taking mechanism 1 further includes a guide roller 104 disposed below the second channel. The guide roller 104 is rotatably mounted on the housing, and a third channel is formed between the guide roller 104 and the inner surface of the first side wall of the housing. The guide roller 104 is connected to the first motor 105, and the first motor 105 drives the guide roller 104 to rotate. The paper feeding roller 102 is connected to the second motor, and the second motor drives the paper feeding roller to rotate.

[0085] The friction part is a friction plate located on the upper surface of the support plate 107 near the first side wall 111 of the housing. The friction plate has texture to increase the friction of the paper.

[0086] Both the paper feed roller 102 and the guide roller 104 are rubber rollers.

[0087] It should be noted that the first channel between the paper feed roller and the friction part can accommodate one or more sheets of paper. The inclined support plate is conducive to the separation of two adjacent sheets of paper. The paper feed roller 102 of the paper feeding mechanism rotates to drive the paper forward. The friction part 103 is close to the paper under the paper and applies resistance to separate the paper. The paper feed roller feeds the paper on the other side to ensure that only one sheet of paper moves forward and to avoid two sheets of paper being fed into the second channel at the same time. After one sheet of paper enters the second channel, the inclined support plate facilitates the next sheet of paper to enter the second channel from the first channel.

[0088] In some examples, the paper surface scanner 2 is a three-dimensional laser scanner, specifically an existing surface profile scanner. The paper surface scanner 2 is fixed to the housing and located on the opposite side of the first sidewall 111. It can acquire wrinkle data of the paper surface. The wrinkle data of the paper surface refers to the height difference between the highest and lowest points of the profile of a single sheet of paper. The paper surface scanner sends the acquired wrinkle data of the paper surface to the controller. The guide roller 104 smoothly transports the paper to the three-dimensional laser scanner. In this embodiment, the main parameters of the paper surface scanner are shown in Table 1.

[0089] Table 1 Main parameters of paper surface scanner

[0090]

[0091]

[0092] It is easy to understand that the controller is a PLC controller or other type of controller. The controller can be fixed to the side of the housing. The controller can convert the received paper surface wrinkle data into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper. The specific calculation method is existing technology. In some examples, the paper surface scanner 2 can automatically convert the acquired paper surface wrinkle data into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper. (Refer to...) Figure 7 As shown, the maximum pressure data is transmitted to the fourth motor of the pressure control mechanism via signal line 201, and the maximum temperature data is transmitted to the heating mechanism. The controller or paper surface scanner 2 converts the wrinkle data of the paper surface into the maximum pressure data and maximum temperature data required to flatten the paper. See Table 2 for details.

[0093] Table 2 shows the maximum pressure and maximum temperature data required for flattening the paper.

[0094]

[0095]

[0096] Regarding the leveling input mechanism, the pressure roller 301 and the heating roller 302 are rotatably mounted on the housing, specifically supported by a first deep groove ball bearing 304. The heating roller 302 is connected to a third motor 303, which drives the heating roller 302 to rotate. The space between the pressure roller 301 and the heating roller 302 is located below the second channel. (Reference) Figure 9 As shown, the housing is provided with terminal block 311, and the wires of the third motor 303 are installed through terminal block 311;

[0097] refer to Figure 2 and Figure 8As shown, a rotating screw 305 is rotatably fixed on the outside of the housing. The rotating screw 305 is connected to a fourth motor. A slider 306 is provided on the rotating screw 305. The slider 306 can move along the rotating screw 305. The screw 306 is connected to a side cylindrical head 310 through a side pull rod 307. The side cylindrical head 310 is connected to a slider 309 in an arc groove. The slider 309 passes through a housing clamping arc groove 308 and is connected to a pressure roller 301. The clamping arc groove 308 is bent towards the housing inlet. Before the paper enters, the slider 306 is located on the right side of the rotating screw 305, so that the pressure roller 301 is in the open state. After the paper enters, the rotating screw 305 drives the slider 306 to move towards the heating roller 302, so that the pressure roller 301 is in the downward pressing state to press the paper (when the pressure roller 301 and the heating roller 302 are pressing, their central axes can be located on the same horizontal plane).

[0098] The lifting screw 305 is equipped with a pressure sensor, which is connected to the controller. The pressure sensor acquires the pressure value between the pressure roller 301 and the heating roller 302 and transmits it to the controller. The controller controls the movement of the screw 305 to keep the pressure between the pressure roller 301 and the heating roller 302 within the range of 1000-3000Pa and performs real-time regulation. The heating roller 302 has a built-in heating mechanism, which is a heating resistance wire. The heating resistance wire is equipped with an existing temperature regulator, and the controller is connected to the temperature regulator. The controller controls the operation of the heating resistance wire through the temperature regulator to keep the temperature at the heating roller 302 within the range of 100-150℃.

[0099] refer to Figure 1 and Figure 3 As shown, the sanding mechanism includes a first sanding mechanism 5 and a second sanding mechanism 7 arranged vertically. The first sanding mechanism 5 performs coarse sanding on the paper surface to loosen the ink stains, while the second sanding mechanism 7 performs fine sanding on the paper surface to grind the ink stains and burrs on the paper surface into dust.

[0100] Specifically, both the first grinding mechanism 5 and the second grinding mechanism 7 are grinding wheel rollers; the mesh size of the first grinding mechanism 5 is smaller than that of the second grinding mechanism 7.

[0101] The first grinding mechanism 5 is specifically a low-speed coarse grinding mechanism, which can be a 120-mesh resin diamond coarse grinding wheel 501. The 120-mesh resin diamond coarse grinding wheel 501 is supported on the housing by a second deep groove ball bearing 502. The central axis of the first grinding mechanism 5 is 110-140mm away from the central axis of the paper pressing mechanism 4, specifically 120mm.

[0102] The second grinding mechanism 7 is a high-speed fine grinding mechanism, specifically a 600-mesh resin diamond fine grinding wheel roller 701. The 600-mesh resin diamond fine grinding wheel roller 701 is supported on the housing by a third deep groove ball bearing 702, and is driven by a sixth motor 703. The distance between the central axis of the second grinding mechanism 7 and the central axis of the positioning and pressing paper mechanism 6 is 110-140mm, specifically 120mm.

[0103] Additionally, it should be explained that a dust extraction and ink removal mechanism 8 is provided on the side of the second polishing mechanism 7, as shown in the reference. Figure 5 and Figure 6 As shown, the dust collection and ink removal mechanism includes an air duct 802, which can be L-shaped to facilitate fixing the air duct to the housing. An inlet is provided on the side of the air duct 802 facing the first side wall of the housing. A fan 801 is installed inside the air duct 802, and the fan 801 is connected to the seventh motor 803. A dust collection box 804 connected to the air duct 802 is provided on the housing. The dust collection box 804 is located diagonally below the second grinding mechanism 7. The width of the dust collection box 804 is smaller than the width of the housing. The dust collection box 804 is located on the side of the flattening output mechanism 9. The seventh motor 803 drives the fan 801 to rotate, and sends the ink stains and burrs generated by grinding into the dust collection box 804 through the air duct 802. The dust collection box 804 contains a small amount of water so that the mixed dust of ink stains and burrs forms a pulp mixture, preventing environmental pollution.

[0104] It is understandable that the dust collection box 804 is detachable from the air duct 802. For example, the air duct has downward protrusions on both sides of the dust collection box 804, and a sliding groove is provided on the outer side of the protrusion. The top side of the dust collection box is bent and inserted into the sliding groove, thereby realizing the replacement or cleaning of the dust collection box 804.

[0105] In addition, to ensure that the paper is stably fed into the first polishing mechanism 5, the housing also supports a paper pressing mechanism 4. The paper pressing mechanism 4 is located between the flattening input mechanism 3 and the first polishing mechanism 5. The setting of the paper pressing mechanism 4 enables the flattening input mechanism 3 to smoothly transport the paper to the first polishing mechanism 5.

[0106] The distance between the paper pressing mechanism 4 and the flattening input mechanism 3 is greater than the distance between the paper pressing mechanism 4 and the first polishing mechanism 5.

[0107] In this embodiment, the paper pressing mechanism includes a second flexible roller 401 that is movably supported by a housing. The housing supports the second flexible roller 401 by a fourth deep groove ball bearing 402. The second flexible roller 401 is driven by an eighth motor 403. The second flexible roller 401 is provided with multiple second protrusions in a circumferential manner. The provision of the second protrusions is beneficial to increasing the friction between the second flexible roller 401 and the paper, thereby ensuring the smooth transport of the paper.

[0108] It is easy to understand that the paper pressing mechanism 4 is spaced apart from the inner surface of the first side wall of the housing to ensure that the paper flows smoothly downwards.

[0109] In this embodiment, a positioning and pressing mechanism 6 is provided between the first polishing mechanism 5 and the second polishing mechanism 7 in the housing. The positioning and pressing mechanism 6 facilitates the smooth delivery of paper to the second polishing mechanism.

[0110] The positioning and pressing mechanism 6 includes a first flexible roller 601 that is movably supported by a housing. The housing supports the first flexible roller 601 through a fifth deep groove ball bearing 602. The first flexible roller 601 is connected to a ninth motor 603. The first flexible roller 601 is provided with multiple first protrusions in a circumferential manner. The arrangement of the first protrusions is conducive to increasing the friction between the first flexible roller and the paper, ensuring stable paper feeding.

[0111] Of course, the positioning and pressing mechanism 6 is spaced apart from the inner surface of the first side wall of the housing to form a channel for paper movement; the distance between the positioning and pressing mechanism 6 and the first grinding mechanism 5 is 110-140mm, and 120mm is optional.

[0112] Both the first flexible roller and the second flexible roller are rubber rollers.

[0113] refer to Figure 3 As shown, the leveling output mechanism 9 includes a first roller 904 and a second roller 901. The first roller is rotatably mounted on the housing. The housing supports the second roller 901 through a sixth deep groove ball bearing 902. The second roller 901 is connected to the tenth motor 903. After the paper is finely processed, there are still small troughs on the surface. Under the drive of the tenth motor 903, the first roller 904 and the second roller 901 of the leveling output mechanism 9 squeeze the paper.

[0114] In some examples, the distance between the second roll and the second grinding mechanism is greater than or equal to the distance between the second grinding mechanism and the positioning and pressing mechanism; the distance between the central axis of the second roll and the central axis of the second grinding mechanism is 110-140mm, specifically 120mm;

[0115] To ensure the stability of the mechanical device, a triangular support structure is provided on one side of the bottom of the housing, and a paper collection box 10 is provided on the other side. The paper collection box 10 is located at the bottom and side of the flat output mechanism 9. The length of the paper collection box 10 is greater than the length of the dust collection box 804, and a discharge port is provided at the top of the paper collection box 10.

[0116] It should be explained that the second channel, the third channel, the channel between the paper pressing mechanism and the first side wall, the channel between the positioning paper pressing mechanism and the first side wall, the channel between the two grinding mechanisms and the first side wall, and the space between two adjacent mechanisms near the first side wall form the channels for the paper to move downward and transport the paper to the flattening output mechanism; therefore, the distance between the paper pressing mechanism and the first side wall, the distance between the positioning paper pressing mechanism and the first side wall, and the distance between the two grinding mechanisms and the first side wall can be the same or similar.

[0117] In this embodiment, all the parameters mentioned are determined based on the size of the paper to be sanded. If the paper size is different, the size needs to be adjusted.

[0118] In the mechanical device provided in this embodiment, the friction part 103 of the paper feeding mechanism 1 cooperates with the paper feeding roller 102 to ensure that only one sheet of paper enters the second channel through the first channel. The paper surface scanner 2 sends the acquired wrinkle data of the paper surface to the controller. The controller calculates the maximum pressure required to flatten the paper and the maximum temperature required to iron the paper, thereby controlling the operation of the pressure adjustment mechanism and the heating mechanism, so that the flattening input mechanism 3 flattens and irons the paper. The paper is fed into the first grinding mechanism 5 for rough grinding through the paper pressing mechanism 4, and then fed into the second grinding mechanism 7 through the positioning paper pressing mechanism 6 to grind the paper surface. Finally, the paper is fed into the paper collection box 10 through the flattening output mechanism 9.

[0119] This embodiment also provides a method for operating a mechanical device for efficiently grinding and reusing paper, including the following:

[0120] The paper enters the paper feeding mechanism 1 of the housing through the feed port;

[0121] Under the action of the baffle 101 and the paper feed roller 102, the paper enters the first channel, and then enters the second channel through the cooperation of the friction part 103 and the paper feed roller 102. It is guided by the guide roller and the paper surface is scanned. This process takes 0.8-1.2 seconds, about 1 second.

[0122] The paper surface scanner 2 scans the wrinkle data of the paper surface from the paper feeding mechanism and sends it to the controller. The controller converts the acquired wrinkle data of the paper surface into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper.

[0123] The controller controls the action of the pressure regulating mechanism based on the maximum pressure data required for the conversion, and controls the on / off state of the heating mechanism based on the maximum temperature data required for ironing the paper.

[0124] The paper enters the space between the pressure roller 301 and the heating roller 302 through the second channel and is flattened by the pressure roller 301 and the heating roller. Driven by the third motor 303, the paper is flattened to 0.09±0.01mm by the pressure roller 301 and the heating roller 302, and then flattened and conveyed to the paper pressing mechanism 4. This process takes 1.4-1.6s, about 1.5 seconds.

[0125] Driven by the eighth motor 403, the second flexible rubber roller 401 of the paper pressing mechanism 4 smoothly conveys the paper to the first polishing mechanism 5. This process takes 0.8-1.2 seconds, approximately 1 second.

[0126] The first grinding mechanism 5 grinds and loosens the ink marks on the flattened paper surface. Driven by the fifth motor 503, the 120-mesh resin diamond coarse grinding wheel 501 of the first grinding mechanism 5 grinds and loosens the ink marks on the paper surface in preparation for the next fine processing. This process takes 1.4-1.6 seconds, about 1.5 seconds.

[0127] The paper enters the second grinding mechanism 7 through the positioning and pressing mechanism. The sixth motor 703 drives the 600-mesh resin diamond fine grinding wheel 701 to rotate at high speed, grinding all the ink and burrs on the paper surface into dust. This process takes 1.4-1.6 seconds, about 1.5 seconds.

[0128] Driven by the tenth motor 903, the first roller 904 and the second roller 901 squeeze the paper. After the paper is squeezed flat, it is output to the paper collection box 10. This process takes 1.4-1.6 seconds, about 1.5 seconds.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mechanical device for efficient erasing and recycling of paper, characterized in that, include: The housing has a feed inlet. The paper feeding mechanism is located below the feed inlet inside the housing. The paper feeding mechanism includes a paper feeding roller, which is rotatable relative to the housing. The paper feeding roller is spaced apart from the feed inlet. A support plate is inclinedly arranged inside the housing. A friction part is provided on the side of the support plate facing the paper feeding roller. A first channel is formed between the friction part and the paper feeding roller. A second channel is formed between the end of the support plate where the friction part is provided and the inner surface of the first side wall of the housing. A paper surface scanner, fixed to the housing, is positioned on the side below the second channel to obtain wrinkle data of the paper surface; The leveling input mechanism is supported by a housing and positioned diagonally below the paper surface scanner. The leveling input mechanism includes a rotatable pressure roller and a heating roller. The pressure roller is connected to a pressure adjustment mechanism to adjust the pressure between the pressure roller and the heating roller. The heating roller is equipped with a heating mechanism. At least one sanding mechanism is provided, which is rotatable relative to the housing. A paper channel is formed between the sanding mechanism and the inner surface of the first side wall of the housing. The housing has a discharge port on the side of one of the sanding mechanisms. The controller, paper surface scanner, pressure adjustment mechanism, heating mechanism, and polishing mechanism are each connected to the controller separately. The controller converts the acquired paper surface wrinkle data into the maximum pressure data required to flatten the paper and the maximum temperature data required to iron the paper. The polishing mechanism includes a first polishing mechanism and a second polishing mechanism arranged vertically; a positioning and pressing paper mechanism is provided between the first polishing mechanism and the second polishing mechanism in the housing. The housing also supports a paper pressing mechanism, which is located between the leveling input mechanism and the first polishing mechanism; the distance between the paper pressing mechanism and the leveling input mechanism is greater than the distance between the paper pressing mechanism and the first polishing mechanism; The housing is provided with an air duct on the side of the second grinding mechanism, and a fan is provided at the air duct. The housing is provided with a dust collection box connected to the air duct, and the dust collection box is located diagonally below the second grinding mechanism. A mechanical device for efficient paper grinding and secondary utilization also includes a flattening output mechanism. The flattening output mechanism includes a first roller and a second roller. The first roller and the second roller are supported by a housing and are rotatable relative to the housing to feed the paper into the discharge port. The distance between the second roller and the second grinding mechanism is greater than or equal to the distance between the second grinding mechanism and the positioning and pressing mechanism.

2. A mechanical device for efficiently grinding and reusing paper according to claim 1, characterized in that, The positioning and pressing mechanism includes a first flexible roller that is movably supported by the housing, and the first flexible roller is provided with multiple first protrusions in a circumferential manner. The positioning and pressing mechanism is spaced apart from the inner surface of the first side wall of the housing to form a channel for paper movement; The distance between the positioning and pressing mechanism and the first grinding mechanism is 110-140mm.

3. A mechanical device for efficiently grinding and reusing paper according to claim 1, characterized in that, The paper pressing mechanism includes a second flexible roller that is movably supported by the housing, and the second flexible roller is provided with multiple second protrusions in a circumferential manner; The paper pressing mechanism is spaced apart from the inner surface of the first side wall of the housing.

4. A mechanical device for efficiently grinding and reusing paper according to claim 1, characterized in that, Both the first grinding mechanism and the second grinding mechanism are grinding wheel rollers; The mesh size of the first polishing mechanism is smaller than that of the second polishing mechanism.

5. A mechanical device for efficiently grinding and reusing paper according to claim 1, characterized in that, The paper taking mechanism further comprises a guide roller arranged below the second channel, the guide roller being rotatably fixed to the shell, and a third channel being formed between the guide roller and the inner surface of the first side wall of the shell; The inner surface of the first side wall of the shell is provided with a baffle above the paper roller, the baffle being arranged obliquely downward relative to the first side wall of the shell.

6. The working method of a mechanical device for efficient erasing and secondary use of paper according to any one of claims 1-5, characterized in that, The paper taking mechanism comprises the following contents: The paper enters the shell through the inlet; The paper enters the first channel and then enters the second channel; The paper surface scanner scans the wrinkle data of the paper surface from the paper taking mechanism and sends the data to the controller, the controller converts the obtained wrinkle data of the paper surface into the maximum pressure data required for flattening the paper and the maximum temperature data required for ironing the paper; The controller controls the action of the pressure adjusting mechanism according to the converted maximum pressure data required, and controls the on-off of the heating mechanism according to the maximum temperature data required for ironing the paper; The paper enters the space between the pressure roller and the heating roller through the second channel, and is flattened by the pressure roller and the heating roller; The polishing mechanism polishes and relaxes the ink marks on the surface of the flattened paper, and polishes the ink marks and burrs on the surface of the paper into dust; The polished paper enters the outlet of the shell.

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