Toner powder recovery system of toner cartridge pulverizer

Abstract

The utility model provides a powdered ink recovery system of a selenium drum crusher, and belongs to the technical field of information destruction equipment. The problem of how to improve the recovery rate of powdered ink is solved. According to the powdered ink recovery system of the selenium drum pulverizer, the selenium drum pulverizer comprises a cabinet body, a separation unit used for collecting powdered ink is fixed in the cabinet body, the powdered ink recovery system comprises a waste bin fixed in the cabinet body, the separation unit and the waste bin are connected through a fan, and inner cavities of the separation unit and the waste bin are communicated. An air outlet is formed in the top of the waste bin, the toner recovery system further comprises a dust removal assembly capable of blowing air and a cylindrical filter element, the filter element is fixed in the waste bin, the air outlet is covered with the opening end of the filter element, the dust removal assembly is fixed to the top of the waste bin, and the air outlet end of the dust removal assembly extends into the air outlet. A collecting box is detachably connected into the waste bin and located below the filter element. The powdered ink recovery system of the selenium drum crusher can improve the recovery rate of powdered ink.

Description

Technical Field

[0001] This utility model belongs to the field of information destruction equipment technology, and relates to a toner recycling system for a toner cartridge shredder. Background Technology

[0002] The toner cartridge is the core imaging component in laser printers and copiers. It converts digital signals into visible images through the photoelectric effect, directly affecting print quality and efficiency.

[0003] Because the printed content inside the toner cartridge is recoverable, damaged toner cartridges need to be scrapped and processed through certain means. Simply put, the toner cartridges are sorted, metal fragments and toner are recycled, and plastic fragments are discarded. In the prior art, toner cartridge crushing and separation equipment disclosed in Chinese Patent (application announcement number: CN111589546B) is generally used to process the toner cartridges. Paragraph 0033 of its specification states: After the toner cartridge is crushed by the toner cartridge crushing unit, the toner cartridge fragments and toner enter the separation unit through the feed port. The separation unit includes a feed inlet, a screen cylinder, a screen cylinder cover, and a screen cylinder drive motor. After being crushed by the toner drum crushing unit, the crushed fragments and toner mixture enter the inclined rotating screen cylinder with screen holes through the feed inlet of the separation unit. During the rotation of the screen cylinder, the toner falls from the screen holes of the screen cylinder, and the fragments slide down the screen cylinder wall to the tail of the screen cylinder. The toner falling from the screen holes of the screen cylinder is collected by the toner collection box, and the fragments that slide down to the tail of the screen cylinder are collected by the debris collection box.

[0004] However, due to its small size and light weight, toner has a strong tendency to disperse. After being sieved through the sieve, only a small portion of the toner naturally settles through the sieve and falls into the collection box, while the majority remains in the sieve, resulting in low recycling efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a toner recovery system for a toner cartridge pulverizer. The technical problem this invention aims to solve is: how to improve the toner recovery rate.

[0006] The objective of this utility model can be achieved through the following technical solution: A toner recycling system for a toner cartridge shredder, the toner cartridge shredder including a cabinet, a separation unit for collecting toner fixed inside the cabinet, characterized in that the toner recycling system includes a waste bin fixed inside the cabinet, the separation unit and the waste bin are connected by a fan and their internal cavities are connected, an air outlet is provided at the top of the waste bin, the toner recycling system also includes a dust removal component capable of blowing air and a cylindrical filter element, the filter element is fixed inside the waste bin and the opening end of which houses the air outlet mask, the dust removal component is fixed at the top of the waste bin and the air outlet end extends into the air outlet, a collection box is detachably connected to the waste bin and the collection box is located below the filter element.

[0007] The working principle of the toner recovery system of this toner cartridge shredder is as follows: While collecting toner through the separation unit, a fan is activated (the separation unit in this application is prior art; please refer to prior art document CN111589546B for details). While the toner settles naturally due to gravity, the negative pressure suction generated by the fan draws out the toner retained in the sieve cylinder. Afterward, since the toner is mixed with the flowing air during suction, to ensure the toner recovery rate, this application sets up an additional recovery system based on the above structure. Specifically, the negative pressure suction generated by the fan draws all the toner from the separation unit into the waste bin. The airflow then exits through the outlet of the waste bin, while the toner, filtered by the filter element, remains in the waste bin. After natural settling, the toner falls into the collection box for centralized collection. Compared to existing technologies… In terms of technology, this invention can effectively improve toner recovery efficiency and ensure maximum toner recovery. It is worth mentioning that after prolonged use, a large amount of toner will adhere to the outer surface of the filter element that performs the filtration function. In the existing technology, operators generally remove it from the waste bin, clean it, and then reinstall it. This method not only increases the workload of the operator, but also may cause the operator to accidentally inhale toner during the cleaning process. In response, this application uses a dust removal component that can blow air to generate airflow, and inputs the airflow into the air outlet of the waste bin through its air outlet. Under the strong pressure of the airflow, the toner adhering to the outer surface of the filter element can be detached from the filter element, thereby quickly cleaning the filter element. Moreover, this part of the toner floats in the cavity of the waste bin and will not leak out. It can also be collected by the collection box after long-term settling, ensuring the toner recovery rate.

[0008] In the toner recovery system of the aforementioned toner cartridge shredder, an inlet is provided on the side wall near the bottom of the waste bin. A conveying pipe is provided between the waste bin and the separation unit. The separation unit has an outlet at its bottom. One end of the conveying pipe is connected to the separation unit and communicates with the outlet, while the other end is connected to the waste bin and communicates with the inlet. The blower is connected to the conveying pipe. Through the combination of the conveying pipe and the blower, toner is transferred from the separation unit to the waste bin. It is worth mentioning that the inlet of the waste bin is located on its outer side wall near the bottom, while the outlet is located at the top of the waste bin. This bottom-feeding and top-air-exit method transports the toner, minimizing toner floating under gravity and ensuring collection efficiency.

[0009] In the toner recovery system of the aforementioned toner cartridge shredder, the cleaning assembly includes a gas cylinder, a cleaning device, and a solenoid valve. The gas cylinder is fixed to the top of the waste bin, the input end of the solenoid valve is connected to the gas cylinder, and the cleaning device is connected and fixed to the output end of the solenoid valve and extends into the air outlet. The cleaning assembly uses the gas cylinder as its air source and a solenoid valve as its switch. When the air circuit is open, gas passes sequentially through the solenoid valve and the inlet / outlet of the cleaning device and enters the filter element. The impact of the airflow removes the toner adhering to the filter element.

[0010] In the toner recovery system of the aforementioned toner cartridge shredder, the filter element is vertically arranged with its open end facing upwards. The filter element is screwed to the inside of the top of the waste bin using fasteners, and the vent mask is located inside the open end. This arrangement covers the vent of the waste bin with the filter element, preventing toner from leaking out through the vent.

[0011] In the toner recycling system of the aforementioned toner cartridge shredder, an installation port is provided on one side wall at the bottom of the waste bin, and the collection box is detachably connected to the waste bin through the installation port. After collecting the toner, the operator can remove the collection box from the waste bin through the installation port for further toner processing.

[0012] In the toner recycling system of the aforementioned toner cartridge shredder, the outer wall of the waste bin has an abutment flange, which surrounds the mounting opening. The collection box includes a box body and a box cover that is vertically arranged and fixedly connected to the box body. The collection box seals the mounting opening with the box cover, and the abutment flange abuts against the box cover. By using the box cover to seal the mounting opening, and through the abutment flange and the box cover, the sealing between the collection box and the waste bin is ensured, preventing toner from leaking out through the gap between them.

[0013] Compared with existing technologies, the toner recovery system of this toner cartridge shredder has the following advantages: the separation unit is connected to the waste bin by a fan, so that the filtered toner can completely enter the waste bin and settle and accumulate in the collection box. The gas is discharged through the filter element, so that the floating toner adheres to the outer surface of the filter element. The air cleaning component blows air into the air outlet, so that the toner on the outer surface of the filter element is shaken off and settles and accumulates in the collection box, ensuring the toner recovery rate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the toner recovery system of this toner cartridge shredder.

[0015] Figure 2 This is a schematic diagram of the structure of the toner recycling system of this toner cartridge shredder after the cover plate on the side wall of the cabinet has been removed.

[0016] Figure 3 This is a cross-sectional view and a partial enlarged view of the toner recovery system of this toner cartridge shredder.

[0017] Figure 4 This is a structural diagram of the waste silo.

[0018] Figure 5 This is a structural diagram of the collection box.

[0019] Figure 6 This is a schematic diagram of the separation unit.

[0020] In the diagram, 1. Cabinet; 11. Separation unit; 111. Discharge port; 12. Fan; 13. Waste bin; 131. Air outlet; 132. Feed inlet; 133. Installation port; 134. Bracing flange; 2. Dust removal assembly; 21. Gas cylinder; 22. Dust remover; 23. Solenoid valve; 3. Filter element; 4. Conveying pipe; 5. Collection box; 51. Box body; 52. Box cover. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Figure 1-3 As shown, in the toner recycling system of this toner cartridge shredder, the toner cartridge shredder includes a body with an internal cavity, and a separation unit 11 for collecting toner is fixed inside the body. For how to shred the toner cartridge and input it into the separation unit 11 for shredding, please refer to the prior art document CN111589546B, which will not be repeated in this embodiment.

[0023] A waste bin 13 is fixed inside the cabinet 1, and a conveying pipe 4 is provided between the waste bin 13 and the separation unit 11. Figure 4and Figure 6 The separation unit 11 has a discharge port 111 at its bottom, and the waste bin 13 has a feed port 132 on its side wall near the bottom. One end of the conveying pipe 4 is connected to the separation unit 11 and communicates with the discharge port 111, and the other end is connected to the waste bin 13 and communicates with the feed port 132. A fan 12 is installed near the middle of the conveying pipe 4. During operation, the fan 12 generates suction to draw out all the toner from the separation unit 11 and discharge it into the waste bin 13. An air outlet 131 is provided at the top of the waste bin 13, and a collection box 5 is detachably connected to the bottom. The discharged toner accumulates in the collection box 5 under the action of gravity, while the air is discharged through the air outlet 131. This is the toner recovery system. The system includes a cylindrical filter element 3 and an air-blowing cleaning assembly 2. The filter element 3 is screwed to the inner wall of the top of the waste bin 13, and its open end covers the air outlet 131 of the waste bin 13. This arrangement allows the airflow generated by the blower 12 to be filtered through the filter element 3 and discharged through the air outlet 131, preventing the toner it carries from leaking out of the air outlet 131 and causing pollution. The cleaning assembly 2 includes a gas cylinder 21 that stores high-pressure gas, a cleaning device 22, and a solenoid valve 23. The gas cylinder 21 is fixed to the outer wall of the top of the waste bin 13. The input end of the solenoid valve 23 is connected to the gas cylinder 21, and the output end is connected to the dust collector 22. The dust collector 22 extends into the waste bin 13 through the air outlet 131 and is located inside the filter element 3. It is worth mentioning that the waste bin 13 can have two or more air outlets 131. Each air outlet 131 in the waste bin 13 is equipped with a filter element 3, and the gas cylinder 21 is connected to the same number of solenoid valves 23 and dust collectors 22 as the number of air outlets 131, with their installation positions corresponding one-to-one. Through this setting, multiple filter elements 3 work together to clean the toner. To prevent excessive filtration pressure on a single filter element 3, and to prevent toner floating in a short time from adhering to the outer surface of the filter element 3 and causing airway blockage, the cleaning pressure is reduced. Regarding the cleaning operation, the aim is to reduce the cleaning pressure on the filter element 3 while improving the toner recovery rate. The specific steps are as follows: with the fan 12 off, the solenoid valve 23 is opened, and the high-pressure gas in the gas cylinder 21 is output and fed into the waste bin 13 through the cleaner 22. The impact of the high-pressure gas shakes off the toner adhering to the outer surface of the filter element 3, which then settles and accumulates in the collection box 5 under gravity. As an alternative, the cleaning component 2 can also be replaced by an air pump and an air supply pipe. Specifically, the air pump is fixed to the top of the waste bin 13, one end of the air supply pipe is connected to the air pump, and the other end is inserted into the air outlet 131.

[0024] An installation port 133 is provided on the side wall at the bottom of the waste bin 13. The collection box 5 is installed into the waste bin 13 through the installation port 133 and is located below the filter element 3. Furthermore, the outer side wall of the waste bin 13 has an abutment flange 134 arranged around the installation port 133. The collection box 5 specifically includes a box body 51 and a box cover 52 fixed vertically to the box body 51. After the collection box 5 is installed into the installation port 133, the installation port 133 is sealed by the box cover 52, and the box body 51 receives the toner. Then, the abutment flange 134 and the inner side of the box body 51 abut against each other to reduce the gap between the collection box 5 and the waste bin 13 and prevent toner from leaking out to the outside and causing pollution.

[0025] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0026] Although this document frequently uses terms such as cabinet 1, separation unit 11, discharge port 111, fan 12, waste bin 13, air outlet 131, inlet 132, mounting port 133, abutment flange 134, dust removal assembly 2, gas cylinder 21, dust remover 22, solenoid valve 23, filter element 3, conveying pipe 4, collection box 5, box body 51, and box cover 52, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A toner recycling system for a toner cartridge shredder, the toner cartridge shredder comprising a cabinet (1), wherein a separation unit (11) for collecting toner is fixed inside the cabinet (1), characterized in that, The toner recycling system includes a waste bin (13) fixed inside a cabinet (1). The separation unit (11) and the waste bin (13) are connected by a fan (12) and their internal cavities are connected. The waste bin (13) has an air outlet (131) at the top. The toner recycling system also includes a cleaning component (2) capable of blowing air and a cylindrical filter element (3). The filter element (3) is fixed inside the waste bin (13) and its open end covers the air outlet (131). The cleaning component (2) is fixed to the top of the waste bin (13) and its air outlet extends into the air outlet (131). A collection box (5) is detachably connected to the waste bin (13) and the collection box (5) is located below the filter element (3).

2. The toner recovery system for the toner cartridge shredder according to claim 1, characterized in that, The waste bin (13) has an inlet (132) on its side wall near the bottom. A conveying pipe (4) is provided between the waste bin (13) and the separation unit (11). The separation unit (11) has an outlet (111) at the bottom. One end of the conveying pipe (4) is connected to the separation unit (11) and communicates with the outlet (111), and the other end is connected to the waste bin (13) and communicates with the inlet (132). The blower (12) is connected to the conveying pipe (4).

3. The toner recovery system for a toner cartridge shredder according to claim 1 or 2, characterized in that, The dust removal assembly (2) includes a gas cylinder (21), a dust remover (22), and a solenoid valve (23). The gas cylinder (21) is fixed to the top of the waste bin (13). The input end of the solenoid valve (23) is connected to the gas cylinder (21). The dust remover (22) is connected and fixed to the output end of the solenoid valve (23) and extends into the air outlet (131).

4. The toner recovery system for the toner cartridge shredder according to claim 3, characterized in that, The filter element (3) is vertically arranged with its open end facing upward. The filter element (3) is fixed to the inside of the top of the waste bin (13) by fasteners and covers the air outlet (131) inside through its open end.

5. The toner recovery system for the toner cartridge shredder according to claim 4, characterized in that, An installation port (133) is provided on one side wall at the bottom of the waste bin (13), and the collection box (5) is detachably connected to the waste bin (13) through the installation port (133).

6. The toner recovery system for the toner cartridge shredder according to claim 5, characterized in that, The outer wall of the waste bin (13) has an abutment flange (134), and the abutment flange (134) is arranged around the mounting port (133). The collection box (5) includes a box body (51) and a box cover (52) arranged vertically and fixed to the box body (51). The collection box (5) covers the mounting port (133) through the box cover (52), and the abutment flange (134) abuts against the box cover (52).

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