Laser printer powder box cleaning device

Abstract

A laser printer's toner cartridge cleaning device comprises: a rotating shaft, a fixing device, a connecting device, an opening and closing device, and a cleaning unit; the rotating shaft is mounted on the toner cartridge body and driven to rotate by the printer's driving motor; a collar device is provided on the rotating shaft; one end of the fixing device is welded to the collar device, and the other end is mounted with the opening and closing device, a cleaning unit is mounted on the opening and closing device, and a connecting device for controlling the opening and closing of the opening and closing device (8) is also mounted in the fixing device. The present invention has a simple structure, is easy to assemble and disassemble, and is easy to use. It can make toner cleaning more thorough and promptly clean out the toner cartridge, avoiding excessive toner residue in the cartridge body, allowing waste toner and the waste toner box to be reused, and reducing the cost of use. The structural design is smart, the durability is good, and it effectively avoids the waste of toner.

Description

[0001] The invention discloses a powder box cleaning device for a laser printer, belonging to the technical field of laser printers. Background Art

[0002] When the printer is printing, there will be excess toner in the photosensitive drum. This part of the toner must be scraped off to avoid waste. The scraped off toner will enter the toner base cartridge. Currently, there is no device that can effectively clean the toner in the toner base cartridge. Either the cleaning must be done after all the toner has entered; or the cleaning device is some distance away from the inner shell of the cartridge, resulting in incomplete cleaning, toner residue, and waste of toner; and the cleaning structure is disposable and cannot be reused after being damaged. Summary of the Invention

[0003] The object of the present invention is to overcome the deficiencies of the prior art and provide a toner cartridge cleaning device for a laser printer.

[0004] The present invention relates to a cleaning device for a powder box of a laser printer. The cleaning device comprises: a rotating shaft (2), a fixing device (4), a connecting device (5), an opening and closing device (8), and a cleaning unit (9); the rotating shaft (2) is mounted on a powder box body (1) and driven to rotate by a driving motor of the printer; a collar device (3) is provided on the rotating shaft (2); one end of the fixing device (4) is welded to the collar device (3), and the other end is mounted with the opening and closing device (8); the cleaning unit (9) is mounted on the opening and closing device (8); the fixing device (4) is further mounted with a connecting device (5), and the connecting device (5) controls the opening and closing of the opening and closing device (8).

[0005] The present invention relates to a cleaning device for a powder box of a laser printer. The fixing device (4) is provided with a vertical through slot (406). A through hole (405) symmetrical with the vertical axis of the through slot (406) is provided on each side wall of the through slot (406). The through hole (405) and the through slot (406) form a Y-shaped cavity.

[0006] The opening and closing device (8) is composed of two buckle covers (803), the two buckle covers (803) are connected by a hinge shaft (801), and the two ends of the hinge shaft (801) are mounted on the upper end surface of the fixing device (4); each of the two buckle covers (803) is provided with a guide hole (804); one end of the guide hole (804) provided on the two buckle covers (803) is closed, and the other end is coaxially connected to the two through holes (405) provided on the fixing device (4);

[0007] The connecting device (5) comprises a cross bar (504), a cross tube (505), a connecting rod (501), a first push rod (502), and a tensioning spring (503); the cross bar (504) and the cross tube (505) are respectively fixedly connected to the two ends of the connecting rod (501) and installed in the through groove (406); the cross tube (505) is located at the opening of the symmetrically arranged through hole (405); a stepping motor is provided in the cross tube (505) to drive two first push rods (502) respectively inserted in the symmetrically arranged through holes (405) to slide back and forth along the axis of the through hole (405), thereby pushing the tensioning spring (503) arranged in the through hole (405) and the guide hole (804) to compress or relax. By compressing the opening and closing spring (503), a force is applied to the two buckle covers (803). Since the direction of the applied force does not pass through the axis core of the hinge shaft (801) of the two buckle covers (803), the two buckle covers (803) are forced to rotate around the hinge shaft (801) to a certain extent, thereby opening the opening and closing device;

[0008] The connecting rod (501) is connected to the cross rod (504), and the cross tube (505) plays a role in structural stability; one end of the first push rod (502) is in contact with the opening and closing spring, and the other end is controlled by a stepping motor to slide back and forth along the axis of the through hole (405); when the first push rod (502) is not extended, the opening and closing spring (503) is in a relaxed state; when the first push rod (502) is driven by the stepping motor to move along the axis of the through hole (405), the first push rod (502) squeezes the opening and closing spring (503) to put it in a compressed state, which is conducive to controlling the opening and closing of the opening and closing device (8); the opening and closing of the opening and closing device (8) driven by the connecting device (5) reflects the dexterity of the structural design.

[0009] The present invention relates to a powder box cleaning device for a laser printer. The collar device (3) comprises a collar (301) and a first connecting member (302). The collar (301) is mounted on the rotating shaft (2) via the first connecting member (302). The first connecting member (302) is a positioning pin. The positioning pin passes through the collar (301) and is inserted into the rotating shaft (2) to fix the collar (301) on the rotating shaft (2). The first connecting member (302) can make the collar device (3) and the rotating shaft (2) more firmly connected.

[0010] The present invention relates to a powder box cleaning device for a laser printer. The fixing device (4) comprises a first fixing device (401), a second fixing device (402), and a third fixing device (403). One end of the first fixing device (401) is fixedly mounted on the collar device (3) by welding, and the other end is connected to the second fixing device (402). The third fixing device (403) is mounted in the second fixing device (402).

[0011] The present invention relates to a powder box cleaning device for a laser printer, wherein a groove corresponding to the upper structure of the first fixing device (401) is provided at the bottom of the second fixing device (402), and the first fixing device (401) is inserted into the groove and fixed by a second connecting member (404); the second connecting member (404) comprises a first fastening plug-in and a second fastening plug-in, the first fastening plug-in is inserted into the first fixing device (401), and the second fastening plug-in is inserted into the second fixing device (402) through the first fastening plug-in; the connection mode of inserting the first fastening plug-in into the first fixing device (401) or inserting the second fastening plug-in into the second fixing device (402) through the first fastening plug-in is selected from a snap connection and / or a screw connection.

[0012] The present invention provides a powder box cleaning device for a laser printer, wherein a slot corresponding to the structure of the third fixing device (403) is provided in the second fixing device (402), and the third fixing device (403) is inserted into the slot provided in the second fixing device (402).

[0013] The present invention relates to a powder box cleaning device for a laser printer. The second fixing device (402) and the third fixing device (403) are provided with coaxial and connected positioning grooves (402-1) and (403-1). A positioning rod (407) is provided in the positioning groove (402-1). The positioning rod (407) is also connected to a knob (408). The knob (408) is rotated forward or reversely to make the positioning rod (407) slide left and right in the positioning groove (402-1), so that the positioning rod (407) enters or exits the positioning groove (403-1), and the second fixing device (402) and the third fixing device (403) are locked in position or released from the locked position.

[0014] The present invention relates to a cleaning device for a powder box of a laser printer. The fixing device (4) is provided with a groove corresponding to the bottom circumference shape of a buckle cover (803) in the opening and closing device (8), so that the opening and closing device (8) can be locked into the fixing device (4) when it is buckled. Figure 1 As shown, when the opening and closing device 8 is buckled, the periphery is stuck in the groove on the upper part of the fixing device 4, which is convenient for stabilizing the opening and closing device 8 so that it does not swing when buckled.

[0015] The present invention provides a cleaning device for a powder box of a laser printer. The cleaning unit (9) includes a scraping head (903) in the shape of an oblique triangle and is fixedly mounted on two buckle covers (803) of the opening and closing device (8). When the two buckle covers (803) are opened, the scraping head (903) will contact the inner wall of the powder box body (1). When the motor drives the rotating shaft (2) to rotate, the toner on the inner wall can be scraped off effectively.

[0016] The present invention relates to a powder box cleaning device for a laser printer. Baffles (902) are provided on both sides of a wiping head (903), and the baffles (902) are fixed to two buckle covers (803) of an opening and closing device (8) by screws. Two pads are also clamped in the opening and closing device (8). A protrusion (901) is provided on each side of the bottom of the wiping head (903). The protrusion (901) is clamped in a groove provided on the pad, so that the cleaning unit (9) and the opening and closing device (8) are more tightly fixed.

[0017] The present invention relates to a cleaning device for a powder box of a laser printer. The opening and closing device (8) comprises a first buckle cover (802) and a second buckle cover (803). The second buckle cover (803) is covered on the outer side of the first buckle cover (802). A rotating shaft (801) is provided at the middle bottom of the first buckle cover (802) to hinge the first buckle cover (802) and the second buckle cover (803). Both ends of the rotating shaft (801) are mounted on the third fixing device (403).

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages over the prior art: the present invention provides a waste powder bin cleaning device; by cleaning the waste powder bin, waste powder and waste powder box can be reused; the device is detachable and replaceable, avoiding the need to replace the entire device after damage, thereby reducing costs; the structure has many connecting components, which improves the durability of the cleaning device; the connecting rod 501 is connected between the cross bar 504 and the cross tube 505 provided in the device, which increases the stability of the first push rod 502, the cross bar 504 and the cross tube 505; a plurality of opening and closing devices are connected by 50 4 is connected to the transverse tube 505, which increases the stability of the device; the second fixing device 402 and the third fixing device 403 are detachable and the components can be replaced; an interlaced rod is provided between the second fixing device 402 and the third fixing device 403 to connect the two, which increases their stability and replaceability; the elastic force of the first push rod 502 pressing the opening and closing spring 503 can be adjusted to adjust the contact distance between the opening and closing device 8 and the inner wall of the waste powder box, and the cleaning unit 9 is an inclined surface, which can remove toner of different thicknesses on the inner wall of the waste powder box and clean it more thoroughly. The present invention can clean toner out of the toner base box in a timely manner, making the toner cleaning more thorough and avoiding excessive toner residue in the base powder box body 1. The design structure is smart and the cleaning is thorough, avoiding toner waste and improving the toner cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a powder cartridge device for a laser printer according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the cleaning device of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the connecting device and the second crossbar of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the opening and closing device of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the cleaning unit of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the powder box device, toner knife and photosensitive drum of the present invention.

[0025] In the figure: 1. powder box body, 2. rotating shaft, 3. ring device, 301. ring, 302. first connecting member, 4. fixing device, 401. first fixing device, 402. second fixing device, 403. third fixing device, 404. second connecting member, 405. through hole, 406. through groove, 5. connecting device, 501. connecting rod, 502. first push rod, 503. opening and closing spring, 504. cross bar, 505. cross tube, 8. opening and closing device, 801. hinge shaft, 802. first buckle cover, 803. second buckle cover, 804. guide hole, 9. cleaning unit, 901. protrusion, 902. baffle, 903. wiping head, 10. toner knife, 11. photosensitive drum. DETAILED DESCRIPTION

[0026] Example 1

[0027] See attached Figure 1-6 The present invention provides a cleaning device for a powder box of a laser printer, the cleaning device comprising: a rotating shaft (2), a fixing device (4), a connecting device (5), an opening and closing device (8), and a cleaning unit (9); the rotating shaft (2) is mounted on a powder box body (1) and driven to rotate by a driving motor of the printer; a toner knife 10 is connected to one side of the powder box body 1 for scraping excess toner from a photosensitive drum 11, and a collar device (3) is provided on the rotating shaft (2); one end of the fixing device (4) is welded to the collar device (3), and the other end is mounted with the opening and closing device (8), and the cleaning unit (9) is mounted on the opening and closing device (8); the fixing device (4) is further mounted with a connecting device (5), and the connecting device (5) controls the opening and closing of the opening and closing device (8);

[0028] A vertical through slot (406) is provided in the fixing device (4), and a through hole (405) symmetrical with the vertical axis of the through slot (406) is provided on each side wall of the through slot (406), wherein the through hole (405) and the through slot (406) form a Y-shaped cavity;

[0029] The opening and closing device (8) is composed of two buckle covers (803), the two buckle covers (803) are connected by a hinge shaft (801), and the two ends of the hinge shaft (801) are installed on the upper end surface of the fixing device (4); each of the two buckle covers (803) is provided with a guide hole (804); one end of the guide hole (804) provided on the two buckle covers (803) is closed, and the other end is coaxially connected to the two through holes (405) provided on the fixing device (4); the opening and closing device (8) includes a first buckle cover (802) and a second buckle cover (803), and the second buckle cover (803) is covered on the outer side of the first buckle cover (802); a rotating shaft (801) is provided at the middle bottom of the first buckle cover (802) to hinge the first buckle cover (802) and the second buckle cover (803);

[0030] The connecting device (5) comprises a cross bar (504), a cross tube (505), a connecting rod (501), a first push rod (502), and a tensioning spring (503); the cross bar (504) and the cross tube (505) are respectively fixedly connected to the two ends of the connecting rod (501) and installed in the through groove (406); the cross tube (505) is located at the opening of the symmetrically arranged through holes (405); a stepping motor is provided in the cross tube (505) to drive two first push rods (502) respectively inserted in the symmetrically arranged through holes (405) to slide back and forth along the axis of the through holes (405), thereby pushing the tensioning spring (503) arranged in the through holes (405) and the guide hole (804) to compress or relax;

[0031] The cleaning unit (9) includes a wiping head (903), which is an oblique triangle and is fixedly mounted on the two buckle covers (803) of the opening and closing device (8). When the two buckle covers (803) are opened, the wiping head (903) will contact the inner wall of the powder box body (1), and when the motor drives the rotating shaft (2) to rotate, the toner on the inner wall can be scraped off well; baffles (902) are provided on both sides of the wiping head (903), and the baffles (902) are fixed to the two buckle covers (803) of the opening and closing device (8) by screws; two pads are also clamped in the opening and closing device (8), and a protrusion (901) is provided on each side of the bottom of the wiping head (903), and the protrusion (901) is clamped in the groove provided on the pad, so that the cleaning unit (9) and the opening and closing device (8) are more tightly fixed;

[0032] The number of the fixing devices (4) and the opening and closing devices (8) is the same, and both rotate under the drive of the rotating shaft 2. The opening and closing devices 8 are opened by the connecting device (5), so that the wiping head (903) of the cleaning unit (9) can better contact with the powder box body 1, thereby ensuring the cleaning degree;

[0033] The collar device (3) comprises a collar (301) and a first connecting member (302). The collar (301) is mounted on the rotating shaft (2) via the first connecting member (302). The first connecting member (302) is a positioning pin. The positioning pin passes through the collar (301) and is inserted into the rotating shaft (2) to fix the collar (301) on the rotating shaft (2).

[0034] Example 2

[0035] The difference between Example 2 and Example 1 is that: the fixing device (4) includes a first fixing device (401), a second fixing device (402), and a third fixing device (403); one end of the first fixing device (401) is welded and fixedly mounted on the collar device (3), and the other end is connected to the second fixing device (402); the third fixing device (403) is mounted in the second fixing device (402);

[0036] The bottom of the second fixing device (402) is provided with a groove corresponding to the upper structure of the first fixing device (401), and the first fixing device (401) is inserted into the groove and installed and fixed by a second connecting member (404); the second connecting member (404) includes a first fastening plug-in and a second fastening plug-in, the first fastening plug-in is inserted into the first fixing device (401), and the second fastening plug-in is inserted into the second fixing device (402) through the first fastening plug-in; the connection mode of the first fastening plug-in inserted into the first fixing device (401) or the second fastening plug-in inserted into the second fixing device (402) through the first fastening plug-in is a snap connection or / and a screw connection;

[0037] A slot corresponding to the structure of the third fixing device (403) is provided in the second fixing device (402), and the third fixing device (403) is inserted into the slot provided in the second fixing device (402); and both ends of the rotating shaft (801) on the opening and closing device (8) are installed on the third fixing device (403).

[0038] Example 3

[0039] The difference between Example 3 and Example 2 is that: coaxial and connected positioning grooves (402-1) and (403-1) are further provided on the second fixing device (402) and the third fixing device (403), a positioning rod (407) is provided in the positioning groove (402-1), and a knob (408) is also connected to the positioning rod (407), and the forward or reverse rotation of the knob (408) can make the positioning rod (407) slide left and right in the positioning groove (402-1), so that the positioning rod (407) enters or exits the positioning groove (403-1), and the second fixing device (402) and the third fixing device (403) are fixed in position or released from the fixed position.

[0040] Example 4

[0041] The difference between Example 4 and Example 3 is that the fixing device (4) is provided with a groove corresponding to the bottom circumference shape of the buckle cover (803) in the opening and closing device (8), so that the opening and closing device (8) can be locked into the fixing device (4) when it is buckled. Figure 1 As shown, when the opening and closing device 8 is buckled, the periphery is stuck in the groove on the upper part of the fixing device 4, which is convenient for stabilizing the opening and closing device 8 so that it does not swing when buckled.

[0042] Working principle of the present invention:

[0043] The operating steps of a laser printer's toner cartridge cleaning device are as follows: When the device is used, driven by a stepper motor, as toner cutter 10 scrapes toner from photosensitive drum 11 into the cleaning device, the rotating shaft 2 drives fixing device 4 to rotate. The stepper motor in transverse tube 505 drives first push rod 502 to push upward on opening and closing spring 503, which is compressed and pushes opening and closing device 8 to open. The outer side of cleaning unit 9 is inclined. This design allows the tip of the inclined surface to press against the inner side of toner cartridge body 1, accumulating toner on the inclined surface. As the cleaning device rotates, the toner is fed to the bottom of the cartridge body 1 and leaks out.

[0044] When cleaning is finished, the rotating shaft 2 stops rotating, and the fixing device 4 also stops rotating. The first push rod 502 is driven by the stepper motor in the transverse tube 505 and shrinks downward along the through hole (405). The tensioning and closing spring 503 relaxes, and the force applied to the opening and closing device 8 is removed. The opening and closing device 8 is closed. Two horizontal grooves are provided on the fixing device 4. In this way, when the opening and closing device 8 is closed, the bottom periphery of the buckle cover (803) of the opening and closing device 8 is just stuck in the horizontal groove of the fixing device 4.

Claims

1. A laser printer toner cartridge cleaning device, the cleaning device comprising: A rotating shaft (2), a fixing device (4), a connecting device (5), an opening and closing device (8), and a cleaning unit (9); characterized in that: the rotating shaft (2) is mounted on a powder box body (1) and is driven to rotate by a driving motor of a printer; a collar device (3) is provided on the rotating shaft (2); one end of the fixing device (4) is welded to the collar device (3), and the other end is mounted with the opening and closing device (8); a cleaning unit (9) is mounted on the opening and closing device (8); a connecting device (5) is further mounted in the fixing device (4), and the connecting device (5) controls the opening and closing of the opening and closing device (8).

2. The laser printer toner cartridge cleaning device according to claim 1, characterized in that: A vertical through slot (406) is provided in the fixing device (4), and a through hole (405) symmetrical with the vertical axis of the through slot (406) is provided on each side wall of the through slot (406), wherein the through hole (405) and the through slot (406) form a "Y"-shaped cavity; The opening and closing device (8) is composed of two buckle covers (803), the two buckle covers (803) are connected by a hinge shaft (801), and the two ends of the hinge shaft (801) are mounted on the upper end surface of the fixing device (4); each of the two buckle covers (803) is provided with a guide hole (804); one end of the guide hole (804) provided on the two buckle covers (803) is closed, and the other end is coaxially connected to the two through holes (405) provided on the fixing device (4); The connecting device (5) comprises a cross bar (504), a cross tube (505), a connecting rod (501), a first push rod (502), and a tensioning spring (503); the cross bar (504) and the cross tube (505) are respectively fixedly connected to the two ends of the connecting rod (501) and installed in the through groove (406); the cross tube (505) is located at the opening of the symmetrically arranged through hole (405); a stepping motor is provided in the cross tube (505) to drive two first push rods (502) respectively inserted in the symmetrically arranged through holes (405) to slide back and forth along the axis of the through hole (405), thereby pushing the tensioning spring (503) arranged in the through hole (405) and the guide hole (804) to compress or relax.

3. The laser printer toner cartridge cleaning device according to claim 2, characterized in that: The collar device (3) comprises a collar (301) and a first connecting member (302). The collar (301) is mounted on the rotating shaft (2) via the first connecting member (302). The first connecting member (302) is a positioning pin. The positioning pin passes through the collar (301) and is inserted into the rotating shaft (2) to fix the collar (301) on the rotating shaft (2).

4. The laser printer toner cartridge cleaning device according to claim 2, characterized in that: The fixing device (4) comprises a first fixing device (401), a second fixing device (402), and a third fixing device (403); one end of the first fixing device (401) is welded and fixedly mounted on the collar device (3), and the other end is connected to the second fixing device (402); the third fixing device (403) is mounted in the second fixing device (402).

5. The laser printer toner cartridge cleaning device according to claim 4, characterized in that: The bottom of the second fixing device (402) is provided with a groove corresponding to the upper structure of the first fixing device (401), and the first fixing device (401) is inserted into the groove and fixed by a second connecting member (404); The second connecting member (404) includes a first fastening plug-in and a second fastening plug-in, the first fastening plug-in is inserted into the first fixing device (401), and the second fastening plug-in is inserted into the second fixing device (402) through the first fastening plug-in; the connection method of the first fastening plug-in being inserted into the first fixing device (401) or the second fastening plug-in being inserted into the second fixing device (402) through the first fastening plug-in is selected from a snap connection and / or a screw connection.

6. The laser printer toner cartridge cleaning device according to claim 5, characterized in that: A slot corresponding to the structure of the third fixing device (403) is provided in the second fixing device (402), and the third fixing device (403) is inserted into the slot provided in the second fixing device (402).

7. The laser printer toner cartridge cleaning device according to claim 6, characterized in that: The second fixing device (402) and the third fixing device (403) are also provided with coaxial and connected positioning grooves (402-1) and (403-1), and a positioning rod (407) is provided in the positioning groove (402-1). The positioning rod (407) is also connected to a knob (408). The forward or reverse rotation of the knob (408) can make the positioning rod (407) slide left and right in the positioning groove (402-1), so that the positioning rod (407) enters or exits the positioning groove (403-1), and the second fixing device (402) and the third fixing device (403) are fixed in position or released from the fixed position.

8. The laser printer toner cartridge cleaning device according to claim 7, characterized in that: The fixing device (4) is provided with a groove corresponding to the bottom circumference shape of the buckle cover (803) in the opening and closing device (8), so that the opening and closing device (8) can be easily locked into the fixing device (4) when buckled.

9. The laser printer toner cartridge cleaning device according to claim 8, characterized in that: The cleaning unit (9) comprises a wiping head (903) which is in the shape of an oblique triangle and is fixedly mounted on two buckle covers (803) of the opening and closing device (8); baffles (902) are provided on both sides of the wiping head (903), and the baffles (902) are fixed to the two buckle covers (803) of the opening and closing device (8) by screws; two pads are also clamped in the opening and closing device (8), and a protrusion (901) is provided on each side of the bottom of the wiping head (903), and the protrusion (901) is clamped in a groove provided on the pad.

10. The laser printer toner cartridge cleaning device according to claim 9, characterized in that: The opening and closing device (8) comprises a first buckle cover (802) and a second buckle cover (803), wherein the second buckle cover (803) is covered on the outside of the first buckle cover (802); a hinge shaft (801) is provided at the middle bottom of the first buckle cover (802) to hinge the first buckle cover (802) and the second buckle cover (803); and both ends of the hinge shaft (801) are mounted on the third fixing device (403).

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