Harmful particle removing device for laser printer

Abstract

The invention discloses a harmful particle removing device for a laser printer, relates to the technical field of laser printers, and aims to solve the technical problems that ink powder and dust enter a gear transmission area, normal rotation of a gear may be affected, the printing speed is reduced, and the paper jamming phenomenon also occurs. Comprising a laser printer body with a laser scanning unit, a paper feeding opening is formed in the top of the laser printer body, and mounting plates are fixedly connected to the inner walls of the two sides of the laser printer body correspondingly. By arranging the cleaning structure, when gears in the printer are cleaned, the gears are cleaned through brushes, when the brushes are wound between the gears, tension springs and limiting plates move in limiting cylinders, the moving range of the brushes can be enlarged, the situation that normal operation of the device is affected by pulling of the gears can be prevented, and meanwhile through a buffering unit, the gears can be prevented from being damaged. Shaking generated when the powdered ink is caked and the brush is rolled between the gears can be buffered, and the stability of the device can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser printers, and more particularly to a harmful particle removing device for laser printers. Background Art

[0002] A laser printer is a printing output device that combines laser scanning technology and electronic photography technology. It is used to convert binary data information from a computer into video signals and transfer them to paper after laser beam imaging. However, the toner in the printer will enter the gear transmission area, affecting the normal operation of the gears and causing paper jams.

[0003] When a laser printer is currently used for a long time, some toner and dust will enter the printer gear transmission area through the gap between the mounting plates, causing dust to accumulate in the printer transmission area. The toner accumulation may hinder the normal rotation of the gears, causing the printing speed to slow down and paper jams to occur. Therefore, a laser printer harmful particle removal device is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a harmful particle removal device for a laser printer to solve the technical problem that toner and dust enter the gear transmission area, which may affect the normal rotation of the gear, causing the printing speed to slow down and paper jams to occur.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser printer harmful particle removal device, comprising a laser printer body with a laser scanning unit, a paper feeding port is provided on the top of the laser printer body, mounting plates are fixedly connected to the inner walls on both sides of the laser printer body, partitions are fixedly connected to the opposite sides of the two mounting plates, a transmission area is provided between the mounting plates and the partitions, and a cleaning structure is provided inside the transmission area;

[0006] The cleaning structure includes a notch and a buffer unit;

[0007] A stabilizing unit is provided on the opposite side of the laser printer body;

[0008] The slots are formed on one side of the two partitions close to the mounting plate, and a limiting cylinder is arranged on the opposite side of each mounting plate and the partition, and one of the limiting cylinders is fixedly sleeved on the inner wall of the slot, and a limiting plate is movably sleeved inside the limiting cylinder, and a tension spring is fixedly connected to the opposite side of the two limiting plates, and a cleaning cylinder is fixedly connected to the opposite side of the two tension springs. The present invention provides a cleaning structure, and when cleaning the gears in the printer, the gears are cleaned by a brush. When the brush is drawn between the gears, the tension spring and the limiting plate move in the limiting cylinder, which can increase the range of movement of the brush and prevent the pulling of the gears from affecting the normal operation of the device. At the same time, the buffer unit can buffer the shaking caused by toner agglomeration and the brush being drawn between the gears, which is beneficial to improving the stability of the device.

[0009] Preferably, a plurality of limiting holes are provided on the side surface of the limiting cylinder and are distributed in a ring array, the protrusions on the limiting plate are movably connected to the inside of the limiting holes, and a brush is fixedly connected to the side surface of the cleaning cylinder.

[0010] Preferably, the buffer unit includes a fixing rod, which is fixedly connected to the opposite sides of the two mounting plates, and the outer wall of the fixing rod is movably sleeved with a photosensitive drum, and slots are respectively provided at both ends of the photosensitive drum, and an annular groove is respectively provided at both ends of the fixing rod.

[0011] Preferably, a plurality of support blocks are movably connected to the inside of the annular groove through a hinge and distributed in an annular array, a telescopic rod is fixedly connected to the top of each support block, a clamping block is fixedly connected to one end of the telescopic rod, a spring is movably sleeved on the outer wall of the telescopic rod and one end of the spring is fixedly connected to the bottom of the clamping block.

[0012] Preferably, the outer walls at both ends of the fixing rod are respectively movably connected with two limit rings, the inner walls of the limit rings are provided with limit grooves and the clamping blocks are movably connected to the inside of the limit grooves by hinges, and a transmission ring is movably connected to the outer wall of each limit ring, and a plurality of gear teeth are fixedly connected to the groove on the transmission ring, and the gear teeth are distributed in an annular array, and plug plates are fixedly connected to the opposite sides of the two transmission rings, and the plug plates are plugged into the inside of the slots. The present invention provides a buffer unit, and during the rotation of the gear, the support block and the clamping block on the telescopic rod respectively rotate in the annular groove 1 and the limit groove, which can reduce the shaking caused by the rotation of the gear with toner agglomerates, and then improve the reset function of the transmission ring after shaking through the spring, and at the same time, the support block and the clamping block are connected by hinges, so that the transmission ring cannot shake and can only move left and right, so as to avoid the transmission ring from being unable to exert force on the photosensitive drum during the shaking process, which is beneficial to improving the stability of the device.

[0013] Preferably, the stabilizing unit includes two annular grooves, and the two annular grooves are respectively opened on the opposite side of the mounting plate. A stabilizing ring is movably connected inside the two annular grooves. A developing roller is movably sleeved on the opposite side of the mounting plate and the stabilizing ring and the developing roller are fixedly connected. Gear one is respectively fixedly sleeved at both ends of the developing roller and the gear one is meshingly connected with the gear teeth.

[0014] Preferably, a charging roller is movably sleeved on one side opposite to the mounting plate and the charging roller is movably connected to the surface of the photosensitive drum, gear two is fixedly sleeved on both ends of the charging roller and gear two is meshingly connected to the gear teeth, a paper feed roller is movably connected on one side opposite to the mounting plate, gear three is fixedly sleeved on both ends of the paper feed roller and gear three is meshingly connected to the gear teeth.

[0015] Preferably, through hole one is respectively opened on the opposite side of the two mounting plates and the two ends of the developing roller are movably sleeved inside through hole one, and through hole two is respectively opened on the opposite side of the two partitions and the photosensitive drum, developing roller, charging roller and paper feed roller pass through through hole two.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a cleaning structure. When cleaning the gears in the printer, the gears are cleaned by a brush. When the brush is rolled between the gears, the brush moves in the limit tube through the tension spring and the limit plate, which can increase the range of brush movement and prevent the pulling of the gears from affecting the normal operation of the device. At the same time, the buffer unit can buffer the shaking caused by toner agglomeration and the brush being rolled between the gears, which is beneficial to improving the stability of the device.

[0018] 2. The present invention sets a buffer unit. When the gear rotates, the support block and the clamping block on the telescopic rod rotate in the annular groove and the limit groove respectively. The shaking of the gear with toner agglomerates when rotating can be controlled. The spring can improve the reset function of the transmission ring after the shaking. At the same time, the support block and the clamping block are connected by a hinge, so that the transmission ring cannot shake and can only move left and right, which prevents the transmission ring from exerting force on the photosensitive drum during shaking, and is beneficial to improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional local structure foam of the present invention, to show the cross-sectional structure of the cleaning structure;

[0022] Figure 4 It is a schematic cross-sectional view of a three-dimensional local structure of the present invention;

[0023] Figure 5 It is a cross-sectional schematic diagram of a three-dimensional partial explosion structure of the present invention, to illustrate the explosion structure of the stabilizing unit;

[0024] Figure 6 It is a three-dimensional partial structural cross-sectional schematic diagram of the present invention, to illustrate the explosion structure of the buffer unit;

[0025] Figure 7 For the present invention Figure 6 A in the figure is a schematic diagram of an enlarged structure;

[0026] Figure 8 It is a schematic diagram of a three-dimensional enlarged structural cross-section of the cleaning structure of the present invention.

[0027] Explanation of the reference numerals in the figure: 1, laser printer body; 2, paper feed port; 3, mounting plate; 301, through hole 1; 4, partition plate; 401, through hole 2; 5, cleaning structure; 501, notch; 502, limit cylinder; 502a, limit hole; 503, limit plate; 504, tension spring; 505, cleaning cylinder; 505a, brush; 6, buffer unit; 601, fixing rod; 602, photosensitive drum; 603, slot; 604 , annular groove one; 605, support block; 606, telescopic rod; 607, block; 608, spring; 609, limit ring; 610, limit groove; 611, transmission ring; 612, gear teeth; 613, plug plate; 7, stabilizing unit; 701, annular groove two; 702, stabilizing ring; 703, developing roller; 704, gear one; 705, charging roller; 706, gear two; 707, paper feed roller; 708, gear three. DETAILED DESCRIPTION

[0028] like Figures 1 to 8 As shown, the present invention relates to a harmful particle removal device for a laser printer, comprising a laser printer body 1 with a laser scanning unit, a paper feeding port 2 is provided on the top of the laser printer body 1, mounting plates 3 are fixedly connected to the inner walls on both sides of the laser printer body 1, partitions 4 are fixedly connected to the opposite sides of the two mounting plates 3, a transmission area is provided between the mounting plates 3 and the partitions 4, and a cleaning structure 5 is provided inside the transmission area; the cleaning structure 5 comprises a notch 501 and a buffer unit 6; a stabilizing unit 7 is provided on the opposite side of the laser printer body 1; the notch 501 is provided on the side of the two partitions 4 close to the mounting plates 3, a limiting cylinder 502 is provided on the opposite side of each mounting plate 3 and the partition 4, and one of the limiting cylinders 502 is fixedly sleeved on the inner wall of the notch 501, a limiting plate 503 is movably sleeved inside the limiting cylinder 502, a tension spring 504 is fixedly connected to the opposite side of the two limiting plates 503, and a cleaning cylinder 505 is fixedly connected to the opposite side of the two tension springs 504.

[0029] In an embodiment of the present invention, a plurality of limiting holes 502a are provided on the side surface of the limiting cylinder 502, and the limiting holes 502a are distributed in a circular array. The protrusions on the limiting plate 503 are movably connected to the limiting holes 502a. A brush 505a is fixedly connected to the side surface of the cleaning cylinder 505. During long-term use, toner inside the printer will enter the transmission area. At this time, the gear teeth 612 are rotated, and the surfaces of the gear teeth 612 and the like are cleaned by the brush 505a. During this process, when the gear teeth 612 rotate with each gear, the brush 505a may be rolled into the gear, causing the brush 505a to generate a pulling force on the cleaning cylinder 505. Through the tension spring 504, the cleaning cylinder 505 can be offset to one side to buffer it, and move in the limiting cylinder 502 through the limiting plate 503, thereby increasing the range of movement of the cleaning cylinder 505.

[0030] In the embodiment of the present invention, the buffer unit 6 includes a fixed rod 601, which is fixedly connected to the opposite sides of the two mounting plates 3. The outer wall of the fixed rod 601 is movably sleeved with a photosensitive drum 602, and slots 603 are respectively provided at both ends of the photosensitive drum 602. Annular grooves 604 are respectively provided at both ends of the fixed rod 601. A plurality of support blocks 605 are movably connected to the inside of the annular groove 604 through hinges and are distributed in an annular array. A telescopic rod 606 is fixedly connected to the top of each support block 605, and a clamping block 607 is fixedly connected to one end of the telescopic rod 606. A spring 608 is movably sleeved on the outer wall of the telescopic rod 606, and one end of the spring 608 is fixedly connected to the bottom of the clamping block 607. Two limiting rings 609 are movably sleeved on the outer walls of the two ends of the fixed rod 601, and a limiting groove 610 is provided on the inner wall of the limiting ring 609, and the clamping block 607 is movably connected to the inside of the limiting groove 610 through a hinge. A transmission ring 611 is movably sleeved on the outer wall of each limiting ring 609. A plurality of gear teeth 612 are fixedly connected in the groove on the ring 611, and the gear teeth 612 are distributed in a circular array. An insert plate 613 is fixedly connected to the opposite side of the two transmission rings 611, and the insert plate 613 is inserted into the slot 603. When the brush 505a is rolled between the gears, the gear teeth 612 and other gears get stuck and shake. During the shaking of the gear teeth 612, the transmission ring 611 buffers the vibration of the gear teeth 612 through the telescopic rod 606 and the spring 608, and the block 607 and the support block 605 are respectively hinged in the limit groove 610 and the annular groove 604 to rotate at an angle, so that the transmission ring 611 can only be directionally offset and cannot shake, and the limit ring 609 can be quickly restored by the spring 608, and the toner agglomeration on the gear can be prevented from affecting the photosensitive drum 602. After use, the paper is passed through the heating unit (existing technology) by the paper feed roller 707 to fix the image on the paper and move it out from the outlet.

[0031] As another embodiment of the present invention, the stabilizing unit 7 includes an annular groove 2 701, which is respectively arranged on one side opposite to the mounting plate 3, and a stabilizing ring 702 is movably connected inside the annular groove 701, and a developing roller 703 is movably sleeved on one side opposite to the mounting plate 3, and the stabilizing ring 702 is fixedly connected to the developing roller 703, and both ends of the developing roller 703 are respectively fixedly sleeved with a gear 1 704, and the gear 1 704 is meshed with the gear teeth 612, and a charging roller 705 is movably sleeved on one side opposite to the mounting plate 3, and the charging roller 705 is movably connected to the surface of the photosensitive drum 602, and both ends of the charging roller 705 are respectively fixedly sleeved with a gear 2 706, and the gear 2 706 is meshed with the gear teeth 612, and a paper feed roller 707 is movably connected on one side opposite to the mounting plate 3, and both ends of the paper feed roller 707 are respectively fixedly sleeved with a gear 3 708, and the gear 3 708 is meshed with the gear teeth 612, and the two mounting plates 3 are respectively on one side opposite to the mounting plate 3. A through hole 301 is provided and both ends of the developing roller 703 are movably sleeved inside the through hole 301. Through holes 2 401 are provided on opposite sides of the two partitions 4 respectively and the photosensitive drum 602, the developing roller 703, the charging roller 705 and the paper feed roller 707 pass through the through holes 2 401. When in use, the charging roller 705 inside the laser printer is first charged through a charging line connected to the printer to form an electric field for the charging roller 705. Then, the paper enters the laser printer from the paper feed port 2, and the toner is transferred to the surface of the photosensitive drum 602 through the developing unit (existing technology) through the developing roller 703. At this time, the photosensitive drum 602 forms an electric field on the surface of the photosensitive drum 602 through the charging roller 705, so that the toner is transferred to the photosensitive drum 602. Then, the paper feed roller 707 moves the paper to one side through an external circuit mechanism, and the photosensitive drum 602, the developing roller 703, the charging roller 705 and the paper feed roller 707 are rotated through the gear 612.

[0032] As another embodiment of the present invention,

[0033] Working principle: This embodiment provides a laser printer harmful particle removal device. When in use, the charging roller 705 inside the laser printer is charged through the charging line connected to the printer, so that the charging roller 705 forms an electric field, and then the paper enters the laser printer from the paper feeding port 2, and the toner is transferred to the surface of the photosensitive drum 602 through the developing roller 703 through the developing unit (existing technology). At this time, the photosensitive drum 602 forms an electric field on the surface of the photosensitive drum 602 through the charging roller 705, so that the toner is transferred to the photosensitive drum 602, and then the paper feed roller 707 is used by the external circuit mechanism to move the paper to one side, and the photosensitive drum 602, the developing roller 703, the charging roller 705 and the paper feed roller 707 are rotated through the gear teeth 612. During long-term use, the toner inside the printer will enter the transmission area. At this time, the gear teeth 612 are rotated, and the surface of the gear teeth 612 and the like is cleaned by the brush 505a. In this process, when the gear teeth 612 rotate between each gear, the brush 505a The brush 505a may be rolled into the gear, so that the brush 505a generates a pulling force on the cleaning cylinder 505. The cleaning cylinder 505 can be deflected to one side through the tension spring 504 to buffer it, and move in the limiting cylinder 502 through the limiting plate 503, which can increase the moving range of the cleaning cylinder 505. When the brush 505a is rolled into the gears, the gear teeth 612 and other gears are stuck and shaken. During the shaking of the gear teeth 612, the transmission ring 611 can tighten the gear teeth 612 through the telescopic rod 606 and the spring 608. 12 is used for buffering when vibrating, and the block 607 and the support block 605 are respectively hinged in the limit groove 610 and the annular groove 604 to rotate at an angle, so that the transmission ring 611 can only be directionally offset and cannot shake, and the limit ring 609 can be quickly restored through the spring 608, and at the same time, the toner agglomeration on the gear can be prevented from affecting the photosensitive drum 602. After use, the paper is passed through the heating unit (existing technology) by the paper feed roller 707 to fix the image on the paper and move it out from the outlet.

[0034] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A laser printer harmful particle removal device, characterized in that: The invention comprises a laser printer body (1) having a laser scanning unit, wherein a paper feeding port (2) is provided on the top of the laser printer body (1), mounting plates (3) are respectively fixedly connected to the inner walls on both sides of the laser printer body (1), and partition plates (4) are respectively fixedly connected to the opposite sides of the two mounting plates (3), a transmission area is provided between the mounting plates (3) and the partition plates (4), and a cleaning structure (5) is provided inside the transmission area; The cleaning structure (5) comprises a notch (501) and a buffer unit (6); A stabilizing unit (7) is provided on the opposite side of the laser printer body (1); The slot (501) is opened on one side of the two partitions (4) close to the mounting plate (3), and a limiting cylinder (502) is arranged on the opposite side of each mounting plate (3) and the partition (4), and one of the limiting cylinders (502) is fixedly sleeved on the inner wall of the slot (501), and a limiting plate (503) is movably sleeved inside the limiting cylinder (502), and a tension spring (504) is fixedly connected to the opposite side of the two limiting plates (503), and a cleaning cylinder (505) is fixedly connected to the opposite side of the two tension springs (504).

2. The harmful particle removal device for a laser printer according to claim 1, characterized in that: The side surface of the limiting cylinder (502) is provided with a plurality of limiting holes (502a) which are distributed in a ring array, the upper protrusion of the limiting plate (503) is movably connected inside the limiting hole (502a), and the side surface of the cleaning cylinder (505) is fixedly connected with a brush (505a).

3. A laser printer harmful particle removal device according to claim 2, characterized in that: The buffer unit (6) comprises a fixing rod (601), the fixing rod (601) being fixedly connected to opposite sides of two mounting plates (3), the outer wall of the fixing rod (601) being movably sleeved with a photosensitive drum (602), the two ends of the photosensitive drum (602) being respectively provided with a slot (603), and the two ends of the fixing rod (601) being respectively provided with an annular groove (604).

4. The harmful particle removal device for a laser printer according to claim 3, characterized in that: A plurality of support blocks (605) are movably connected to the inside of the annular groove (604) through a hinge and are distributed in an annular array. A telescopic rod (606) is fixedly connected to the top of each support block (605), and a clamping block (607) is fixedly connected to one end of the telescopic rod (606). A spring (608) is movably sleeved on the outer wall of the telescopic rod (606), and one end of the spring (608) is fixedly connected to the bottom of the clamping block (607).

5. The harmful particle removal device for a laser printer according to claim 4, characterized in that: Two limiting rings (609) are movably sleeved on the outer walls at both ends of the fixing rod (601), and limiting grooves (610) are provided on the inner walls of the limiting rings (609), and the clamping blocks (607) are movably connected to the inside of the limiting grooves (610) through hinges. A transmission ring (611) is movably sleeved on the outer wall of each limiting ring (609), and a plurality of gear teeth (612) are fixedly connected in the groove of the transmission ring (611), and the gear teeth (612) are distributed in a ring array. An insert plate (613) is fixedly connected to the opposite side of the two transmission rings (611), and the insert plate (613) is inserted into the inside of the slot (603).

6. The harmful particle removal device for a laser printer according to claim 5, characterized in that: The stabilizing unit (7) comprises an annular groove 2 (701), the annular groove 2 (701) being respectively arranged on the opposite side of the mounting plate (3), a stabilizing ring (702) being movably connected inside the annular groove 2 (701), a developing roller (703) being movably sleeved on the opposite side of the mounting plate (3), and the stabilizing ring (702) and the developing roller (703) being fixedly connected, and a gear 1 (704) being fixedly sleeved on both ends of the developing roller (703), and the gear 1 (704) being meshingly connected with the gear teeth (612).

7. The harmful particle removal device for a laser printer according to claim 6, characterized in that: The opposite side of the mounting plate (3) is movably connected with a charging roller (705), and the charging roller (705) is movably connected to the surface of the photosensitive drum (602); the two ends of the charging roller (705) are respectively fixedly connected with gear 2 (706), and gear 2 (706) is meshingly connected with the gear teeth (612); the opposite side of the mounting plate (3) is movably connected with a paper feed roller (707), and the two ends of the paper feed roller (707) are respectively fixedly connected with gear 3 (708), and gear 3 (708) is meshingly connected with the gear teeth (612).

8. The harmful particle removal device for a laser printer according to claim 7, characterized in that: The two mounting plates (3) are each provided with a through hole one (301) on one side opposite to the other, and the two ends of the developing roller (703) are movably sleeved inside the through hole one (301). The two partition plates (4) are each provided with a through hole two (401) on one side opposite to the other, and the photosensitive drum (602), the developing roller (703), the charging roller (705) and the paper feed roller (707) pass through the through hole two (401).

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