A printed paper edge scrap recycling device

Abstract

The application relates to a printed paper edge and corner waste recycling device and relates to the field of packaging printing technology. In order to solve the problem of paper edge and corner waste, the device comprises a crusher, a reaction kettle and a stirring cylinder. Two parallel crushing rollers are rotationally arranged in the crusher. The two crushing rollers are meshed with each other. A driving mechanism for driving the two crushing rollers to rotate towards each other is arranged on the crusher. A collecting drawer for collecting crushed materials is arranged at the bottom of the crusher. A solvent inlet and a clean water inlet are arranged at the top of the reaction kettle. A discharge pipe is arranged between the reaction kettle and the stirring cylinder. A stirring mechanism for mixing materials is arranged in the stirring cylinder. The application realizes efficient recycling treatment of paper edge and corner waste, improves the recycling and reusing rate of paper edge and corner waste, and reduces the production cost.

Description

Technical Field

[0001] This application relates to the field of packaging and printing technology, and in particular to a device for recycling and reusing printing paper scraps. Background Technology

[0002] As the core carrier of efficient information dissemination and precise product packaging, the modern printing industry has undergone a leapfrog development in its technology system from traditional analog processes to digitalization and intelligence. In the early days, offset printing technology dominated the publishing and commercial printing fields for a long time due to its high stability and batch processing capabilities. However, with the breakthrough of digital printing technology, new models such as short-run printing and variable data printing have emerged rapidly, improving the printing industry's responsiveness to the personalized market.

[0003] In the printing production process, paper scraps are generated throughout the core stages such as cutting, die-cutting, and plate separation. Due to the mismatch between the size of the printed matter and the paper size, the cutting process inevitably produces a large number of irregular paper edges. The die-cutting process, which requires the processing of irregularly shaped packaging, further leads to the fragmentation and waste of paper edges, which needs to be improved. Utility Model Content

[0004] To address the problem of paper scrap waste, this application provides a device for recycling and reusing printing paper scraps.

[0005] The printing paper scrap recycling device provided in this application adopts the following technical solution: A device for recycling and reusing printing paper scraps includes a crusher, a reaction vessel, and a stirring drum. Two parallel crushing rollers are rotatably mounted inside the crusher, and the two rollers mesh with each other. A drive mechanism is provided on the crusher to drive the two rollers to rotate in opposite directions. A collection drawer for collecting scraps is provided at the bottom of the crusher. A solvent inlet and a clean water inlet are provided at the top of the reaction vessel. A discharge pipe connects the reaction vessel and the stirring drum. A stirring mechanism for mixing the materials is provided inside the stirring drum.

[0006] Due to the mismatch between the size of printed materials and the paper size, the cutting process inevitably produces a large number of irregular paper edges. The die-cutting process, which requires the processing of irregularly shaped packaging, further leads to the fragmentation and waste of paper edges. By adopting the above technical solution, including a crusher, a reaction vessel, and a stirring drum, two crushing rollers are rotatably installed inside the crusher, a drive mechanism drives the crushing rollers to rotate, a collection drawer is installed below the crushing rollers of the crusher, the reaction vessel is connected to the stirring drum, and the stirring mechanism is installed inside the stirring drum. When processing paper scraps, turn on the drive mechanism of the crusher to drive the two crushing rollers to rotate in opposite directions. The paper scraps are fed into the crusher, and the meshing crushing rollers crush the scraps into small pieces. The crushed pieces fall into the collection drawer at the bottom of the crusher. After the crushing work is completed, the small pieces are taken out of the collection drawer. Open the reactor and pour the scrap from the collection drawer into the reactor. Then, add a suitable solvent through the solvent inlet at the top of the reactor and add an appropriate amount of water through the water inlet. Tighten the knob to press the clamp onto the surface of the reactor lid and carry out a high-temperature and high-pressure reaction. After the deinking reaction is completed, the pulp flows into the mixing drum through the discharge pipe. The mixing mechanism is turned on, water is added to dilute the pulp concentration, and the pulp is stirred at low speed to disperse the residual fine ink particles. The pulp is then discharged to a designated location, and after draining and concentrating, it is used for recycled paper production. By incorporating a crusher, reaction vessel, and mixing drum, this system achieves efficient recycling of paper scraps. The crushing rollers inside the crusher quickly break the paper scraps into uniform fragments, ensuring initial fine processing. The bottom collection drawer promptly collects the crushed fragments, preventing them from scattering and ensuring a clean and orderly recycling process. The reaction vessel allows the scraps to fully react, effectively removing impurities such as ink and improving the quality of recycled paper. The discharge pipe ensures smooth transfer of the pulp after reaction to the mixing drum, guaranteeing the continuity of the recycling process. The mixing mechanism thoroughly mixes the materials, ensuring the uniformity of the recycled pulp. The overall device improves the recycling rate of paper scraps and reduces production costs.

[0007] Optionally, the drive mechanism includes a drive motor, a drive gear, and a driven gear. The drive gear and the driven gear are respectively connected to two crushing rollers and mesh with each other. The output end of the drive motor is connected to one of the crushing rollers.

[0008] By adopting the above technical solution, the drive mechanism includes a drive motor, a driving gear, and a driven gear; through the setting of the drive mechanism, the transmission control of the crushing roller is realized, ensuring that the two crushing rollers can rotate synchronously and stably in opposite directions, thereby improving the crushing efficiency of the crusher for paper scraps.

[0009] Optionally, the reactor includes a vessel body and a vessel lid, the vessel lid being disposed at the top opening of the vessel body, and the vessel lid being provided with a clamping assembly for pressing and fixing the vessel lid to the vessel body.

[0010] By adopting the above technical solution, the reactor includes a vessel body and a vessel lid, with the vessel lid fixed to the vessel body by a clamping assembly. Through the arrangement of the vessel body, vessel lid, and clamping assembly, a stable connection between the vessel lid and the vessel body is achieved, which helps to ensure the stable progress of the chemical reaction inside the reactor.

[0011] Optionally, the clamping assembly includes a knob and a clamp, one end of which is hinged to the vessel body, and the knob is threaded to the other end of the clamp, with the knob pressed against the surface of the vessel lid.

[0012] By adopting the above technical solution, the clamping component includes a knob and a clamp; the clamping component facilitates the quick placement or removal of the lid, enabling flexible opening and closing actions.

[0013] Optionally, the reactor lid is equipped with a pressure gauge for monitoring internal pressure, and the outer wall of the reactor body is equipped with a thermometer for monitoring internal temperature.

[0014] By adopting the above technical solution, the pressure gauge is installed on the vessel lid, and the thermometer is installed on the vessel body. Through the setting of the pressure gauge and thermometer, the pressure and temperature inside the reactor can be monitored in real time and accurately. The pressure gauge can promptly report changes in the pressure inside the vessel, which is convenient for operators to quickly adjust the reaction conditions. The thermometer can accurately display the temperature inside the vessel, which helps to precisely control the reaction temperature, ensure that the chemical reaction is carried out under suitable conditions, and improve the reaction efficiency.

[0015] Optionally, the bottom of the reactor and the stirring tank are respectively provided with a first discharge port and a second discharge port for communicating with the discharge pipe. A first valve and a second valve are respectively provided in parallel on the first discharge port and the second discharge port. The first valve is used to control the flow into the discharge pipe, and the second valve is used to control the direct discharge of materials.

[0016] By adopting the above technical solution, the reactor and the mixing tank are equipped with a first discharge port and a second discharge port, and a first valve and a second valve are connected in parallel on both the first discharge port and the second discharge port. Through the setting of the first discharge port, the second discharge port, the first valve and the second valve, the pulp discharge path can be flexibly selected. When it is necessary to transfer the pulp to the subsequent process, opening the first valve can allow the material to flow out smoothly through the discharge pipe, ensuring the continuity of the production process. When it is necessary to directly discharge the material for sampling and testing or equipment cleaning, opening the second valve can be done quickly, avoiding the retention of material in the system.

[0017] Optionally, the stirring mechanism includes a stirring shaft, a stirring motor, and a stirring rod. The stirring shaft is rotatably arranged inside the stirring drum, the output end of the stirring motor is connected to the end of the stirring shaft, and the stirring rod is arranged on the stirring shaft.

[0018] By adopting the above technical solution, the stirring mechanism includes a stirring shaft, a stirring motor, and a stirring rod. Through the setting of the stirring mechanism, the pulp concentration can be diluted efficiently and evenly, so that the pulp reaches a physical state suitable for subsequent production. It can also promote the full dispersion of residual fine ink particles and improve the purity of the pulp.

[0019] Optionally, the number of stirring rods is multiple sets, and the multiple sets of stirring rods are arranged alternately along the length of the stirring shaft.

[0020] By adopting the above technical solution, the number of stirring rods is multiple; by selecting the number of stirring rods, the contact area with the pulp is increased, which can more fully agitate the pulp and improve the uniformity of pulp quality.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By incorporating a crusher, reaction vessel, and mixing drum, this device achieves efficient recycling of paper scraps. The crushing rollers inside the crusher quickly break the paper scraps into uniform fragments, ensuring initial fine processing. The bottom collection drawer promptly collects the crushed fragments, preventing them from scattering and ensuring a clean and orderly recycling process. The reaction vessel allows the scraps to fully react, effectively removing impurities such as ink and improving the quality of recycled paper. The discharge pipe ensures smooth transfer of the pulp after reaction to the mixing drum, guaranteeing the continuity of the recycling process. The mixing mechanism thoroughly mixes the materials, ensuring the uniformity of the recycled pulp. The overall device improves the recycling rate of paper scraps and reduces production costs. 2. By setting pressure gauges and thermometers, the pressure and temperature inside the reactor can be monitored in real time and accurately. The pressure gauges can promptly report changes in the pressure inside the reactor, making it easy for operators to quickly adjust the reaction conditions. The thermometers can accurately display the temperature inside the reactor, which helps to precisely control the reaction temperature, ensure that the chemical reaction is carried out under suitable conditions, and improve reaction efficiency. 3. The stirring mechanism can efficiently and evenly dilute the pulp concentration, bringing the pulp to a physical state suitable for subsequent production. It can also promote the full dispersion of residual fine ink particles, thus improving the purity of the pulp. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a printing paper scrap recycling device according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram illustrating the internal structure of the crusher in the embodiments of this application.

[0024] Figure 3 This is a front view of a printing paper scrap recycling device according to an embodiment of this application.

[0025] Figure 4 This is a cross-sectional view used in the embodiments of this application to show the interior of the stirring tank.

[0026] Explanation of reference numerals in the attached drawings: 1. Crusher; 2. Reactor; 21. Reactor body; 22. Reactor cover; 3. Stirring drum; 4. Crushing roller; 5. Drive mechanism; 51. Drive motor; 52. Drive gear; 53. Driven gear; 6. Collection drawer; 7. Discharge pipe; 8. Stirring mechanism; 81. Stirring shaft; 82. Stirring motor; 83. Stirring rod; 9. Solvent inlet; 10. Clean water inlet; 11. Clamping assembly; 111. Knob; 112. Clamp; 12. Pressure gauge; 13. Thermometer; 14. First discharge port; 15. Second discharge port; 16. First valve; 17. Second valve. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0028] This application discloses a device for recycling and reusing printing paper scraps. (Refer to...) Figure 1 The printing paper scrap recycling device includes a crusher 1, a reaction vessel 2, and a stirring drum 3. In this embodiment, the crusher 1, the reaction vessel 2, and the stirring drum 3 are arranged in parallel. The crusher 1 crushes the paper scraps, the reaction vessel 2 removes the ink from the paper surface through high temperature and high pressure, and the stirring drum dilutes the pulp concentration by stirring, so that the residual fine ink particles are dispersed.

[0029] Reference Figure 1 and Figure 2 The crusher 1 has two crushing rollers 4 installed inside, which are arranged in parallel and mesh with each other. A collection drawer 6 is installed at the bottom of the crusher 1, with the opening of the collection drawer 6 facing the bottom of the crushing rollers 4, to receive the crushed paper.

[0030] Reference Figure 1 and Figure 2 The crusher 1 is equipped with a drive mechanism 5, which drives the two crushing rollers 4 to rotate in opposite directions. The drive mechanism 5 includes a drive motor 51, a drive gear 52, and a driven gear 53. The drive gear 52 and the driven gear 53 are respectively sleeved and fixed on the two crushing rollers 4 and mesh with each other. In this embodiment, the drive gear 52 and the driven gear 53 have the same diameter. The drive motor 51 is installed outside the crusher 1, and the output end of the drive motor 51 is connected to one of the crushing rollers 4. This realizes the transmission control of the crushing rollers 4, ensuring that the two crushing rollers 4 can rotate synchronously and stably in opposite directions, thereby improving the crushing efficiency of the crusher 1 for paper scraps.

[0031] Reference Figure 1 and Figure 3The reactor 2 is equipped with a solvent inlet 9 and a water inlet 10 at the top. In this embodiment, the reactor 2 includes a reactor body 21 and a reactor cover 22. The reactor cover 22 is located at the top opening of the reactor body 21. A clamping assembly 11 is installed on the reactor cover 22. The clamping assembly 11 includes a knob 111 and a clamp 112. One end of the clamp 112 is hinged to the reactor body 21, and the knob 111 is threaded to the other end of the clamp 112. The knob 111 is pressed against the surface of the reactor cover 22. In this embodiment, an annular groove is provided on the reactor cover 22 for the knob 111 to be pressed. At the same time, there are multiple sets of clamping assemblies 11. The multiple sets of clamping assemblies 11 are arranged sequentially along the circumferential direction of the reactor cover 22, which realizes a stable connection between the reactor cover 22 and the reactor body 21, which helps to ensure the stable progress of the chemical reaction in the reactor 2.

[0032] Reference Figure 1 and Figure 3 A pressure gauge 12 is installed on the lid 22 of the reactor 2, and a thermometer 13 is installed on the outer wall of the reactor body 21 of the reactor 2. These are used to monitor the internal pressure and temperature of the reactor 2 in real time and accurately. The pressure gauge 12 can promptly report changes in the internal pressure, which is convenient for operators to quickly adjust the reaction conditions. The thermometer 13 can accurately display the internal temperature, which helps to accurately control the reaction temperature, ensure that the chemical reaction is carried out under suitable conditions, and improve the reaction efficiency.

[0033] Reference Figure 1 and Figure 3 A discharge pipe 7 is installed between the reactor 2 and the stirring tank 3. The bottoms of the reactor 2 and the stirring tank 3 are respectively connected to a first discharge port 14 and a second discharge port 15. The two ends of the discharge pipe 7 are respectively connected to the first discharge port 14 and the second discharge port 15. At the same time, a first valve 16 and a second valve 17 are installed in parallel on the first discharge port 14 and the second discharge port 15. The first valve 16 is used to control the flow into the discharge pipe 7, and the second valve 17 is used to control the direct discharge of materials. In this embodiment, the reactor 2 and the stirring tank 3 can discharge through the second valve 17, and are also equipped with corresponding separate pipes for discharge. The first valve 16 and the second valve 17 allow for flexible selection of the pulp discharge path. When the pulp needs to be transferred to the subsequent process, opening the first valve 16 will allow the material to flow out smoothly through the discharge pipe 7, ensuring the continuity of the production process. When the material needs to be directly discharged for sampling and testing or equipment cleaning, opening the second valve 17 can be done quickly, avoiding the retention of materials in the system.

[0034] Reference Figure 3 and Figure 4 A stirring mechanism 8 is installed inside the stirring drum 3. The stirring mechanism 8 includes a stirring shaft 81, a stirring motor 82, and a stirring rod 83. The stirring shaft 81 is rotatably installed inside the stirring drum 3, and the stirring motor 82 is installed on the top of the stirring drum 3. The output end of the stirring motor 82 is connected to the end of the stirring shaft 81.

[0035] Reference Figure 4 The stirring rods 83 are arranged on the stirring shaft 81. In this embodiment, there are multiple sets of stirring rods 83, which are arranged alternately along the length of the stirring shaft 81. The stirring mechanism 8 can efficiently and uniformly dilute the pulp concentration, so that the pulp reaches a physical state suitable for subsequent production. It can also promote the full dispersion of residual fine ink particles and improve the purity of the pulp.

[0036] The implementation principle of the printing paper scrap recycling device in this application embodiment is as follows: When processing paper scraps, the drive mechanism 5 of the crusher 1 is turned on, the drive motor 51 is started, and a crushing roller 4 connected to it is rotated. The drive gear 52 and the driven gear 53 mesh with each other, driving the other crushing roller 4 to rotate in opposite directions. The printing paper scraps are put into the crusher 1, and the meshing crushing rollers 4 crush the scraps into small pieces. The crushed small pieces fall into the collection drawer 6 at the bottom of the crusher 1. After the crushing work is completed, the small pieces in the collection drawer 6 are taken out. Open the lid 22 of the reactor 2, pour the debris from the collection drawer 6 into the reactor 2, then add a suitable solvent through the solvent inlet 9 at the top of the reactor 2, add an appropriate amount of water through the water inlet 10, tighten the knob 111 to press the clamp 112 onto the surface of the lid 22, and monitor the pressure inside the reactor 2 through the pressure gauge 12 and the internal temperature through the thermometer 13 to ensure that the reaction is carried out under suitable pressure and temperature conditions; After the deinking reaction is completed, open the first valve 16 on the first discharge port 14 of the reactor 2, and at the same time ensure that the first valve 16 on the second discharge port 15 of the mixing drum 3 is in the open state. Close the second valves 17 on both discharge ports. The reacted pulp flows into the mixing drum 3 through the discharge pipe 7. Turn on the stirring mechanism 8, and start the stirring motor 82 to drive the stirring shaft 81 to rotate. Multiple sets of stirring rods 83 rotate together with the stirring shaft 81. Add water to dilute the pulp concentration. Stir at low speed to disperse the residual fine ink particles. Open the second valve 17 on the second discharge port 15 of the mixing drum 3 to discharge the pulp to the designated location. After draining and concentrating, it is used for recycled paper production. By incorporating a crusher 1, a reaction vessel 2, and a mixing drum 3, the system achieves efficient recycling of paper scraps. The crushing roller 4 inside the crusher 1 quickly crushes the paper scraps into uniform fragments, ensuring initial fine processing. The bottom collection drawer 6 promptly collects the crushed fragments, preventing them from scattering and ensuring a clean and orderly recycling process. The reaction vessel 2 allows the scraps to fully react within the vessel, effectively removing impurities such as ink and improving the quality of recycled paper. The discharge pipe 7 ensures smooth transfer of the pulp after reaction to the mixing drum 3, guaranteeing the continuity of the recycling process. The mixing mechanism 8 thoroughly mixes the materials, ensuring the uniformity of the recycled pulp. The overall device improves the recycling rate of paper scraps and reduces production costs.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for recycling and reusing printing paper scraps, characterized in that: The device includes a crusher, a reaction vessel, and a stirring drum. The crusher has two parallel crushing rollers that rotate and mesh with each other. The crusher is equipped with a drive mechanism to drive the two crushing rollers to rotate in opposite directions. The bottom of the crusher is equipped with a collection drawer for collecting crushed materials. The top of the reaction vessel is equipped with a solvent inlet and a water inlet. A discharge pipe connects the reaction vessel and the stirring drum. The stirring drum is equipped with a stirring mechanism for mixing materials.

2. The printing paper scrap recycling device according to claim 1, characterized in that: The drive mechanism includes a drive motor, a drive gear, and a driven gear. The drive gear and the driven gear are respectively connected to two crushing rollers and mesh with each other. The output end of the drive motor is connected to one of the crushing rollers.

3. The printing paper scrap recycling device according to claim 1, characterized in that: The reactor includes a vessel body and a vessel lid. The vessel lid is located at the top opening of the vessel body and is provided with a clamping assembly for pressing and fixing the vessel lid to the vessel body.

4. The printing paper scrap recycling device according to claim 3, characterized in that: The clamping assembly includes a knob and a clamp. One end of the clamp is hinged to the vessel body, and the knob is threaded to the other end of the clamp. The knob is pressed against the surface of the vessel lid.

5. The printing paper scrap recycling device according to claim 3, characterized in that: The reactor lid is equipped with a pressure gauge for monitoring the internal pressure, and the outer wall of the reactor body is equipped with a thermometer for monitoring the internal temperature.

6. The printing paper scrap recycling device according to claim 1, characterized in that: The bottom of the reactor and the stirring tank are respectively provided with a first discharge port and a second discharge port for communicating with the discharge pipe. A first valve and a second valve are respectively provided in parallel on the first discharge port and the second discharge port. The first valve is used to control the flow into the discharge pipe, and the second valve is used to control the direct discharge of materials.

7. The printing paper scrap recycling device according to claim 1, characterized in that: The stirring mechanism includes a stirring shaft, a stirring motor, and a stirring rod. The stirring shaft is rotatably arranged inside the stirring drum, the output end of the stirring motor is connected to the end of the stirring shaft, and the stirring rod is arranged on the stirring shaft.

8. The printing paper scrap recycling device according to claim 7, characterized in that: The number of stirring rods is multiple sets, and the multiple sets of stirring rods are arranged alternately along the length of the stirring shaft.

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