Scraper structure of selenium drum

Abstract

The utility model relates to the technical field of selenium drums, and discloses a scraper structure of a selenium drum, which comprises a shell and a scraper mounting rack, a drum core is arranged in the shell, a scraper body is mounted on the outer surface of the scraper mounting rack, a tooth row is fixedly connected to the outer surface of the scraper mounting rack, and a scraper blade is mounted on the tooth row. The outer surface of the fixing frame is rotationally connected with two supporting shafts, a motor is fixedly installed on the outer surface of the bottom of the fixing frame, and the outer surfaces of the two supporting shafts are fixedly sleeved with a first half gear and a second half gear correspondingly. The motor drives the supporting shaft to rotate and is matched with the transmission gear, the synchronous belt wheel and the synchronous cog belt, so that the first half gear and the second half gear drive the tooth row to move in the opposite directions, the tooth row moves in a reciprocating mode, and the tooth row drives the scraper body to move back and forth; the situation that when the scraper body at the fixed position scrapes the carbon powder, the carbon powder can not be scraped thoroughly is avoided, and the scraping effect on the carbon powder on the drum core is improved.

Description

Technical Field

[0001] This utility model relates to the field of toner cartridge technology, specifically to a scraper structure for a toner cartridge. Background Technology

[0002] During the printing or copying process of a printer or copier, toner forms an image on the drum and then transfers it to the copy paper. Some toner remains on the drum during this process. If this toner is not removed, it will be transferred to the next sheet of copy paper, affecting the copying effect and quality. Therefore, it is necessary to install a scraper to clean the toner residue on the drum.

[0003] In the prior art, a fixed scraper is used to scrape off the toner on the drum. However, scraping the toner with a fixed scraper may result in incomplete removal of the toner, and the scraper and drum experience significant wear, which affects the scraping effect. Therefore, a scraper structure for the drum is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a scraper structure for a toner cartridge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A scraper structure for a toner cartridge includes a housing and a drum core disposed inside the housing. The housing also includes a scraper mounting bracket, a fixing bracket, and a connecting support plate.

[0007] The scraper mounting bracket has a scraper body on one side facing the drum core, and the other side of the scraper mounting bracket is fixedly connected to the connecting support plate;

[0008] The connecting support plate has a toothed rack on the side facing the fixed frame. The fixed frame has an adjustment component and a transmission component. The transmission component is used to drive the toothed rack so that the scraper body moves along the length direction of the drum core. The adjustment component is used to drive the fixed frame to move and adjust the distance between the scraper body and the drum core.

[0009] Furthermore, the transmission assembly includes a motor, a coupling assembly, a first half gear, a second half gear, and two support shafts;

[0010] The output end of the motor is fixedly connected to one of the support shafts, and the first half gear and the second half gear are respectively fixedly sleeved on the two support shafts;

[0011] The connecting assembly connects the first half gear and the second half gear, causing the first half gear and the second half gear to rotate in opposite directions, thereby driving the teeth of the first half gear and the teeth of the second half gear to mesh with the gear row in sequence, and driving the scraper body to move along the length direction of the drum core.

[0012] Furthermore, the connecting assembly includes a drive shaft and a drive gear, with the drive gear sleeved on the drive shaft;

[0013] The number of connecting components is two, the transmission gears of the two connecting components mesh and drive each other, and the two connecting components are respectively connected to the support shaft of the first half gear and the support shaft of the second half gear.

[0014] Furthermore, the connecting assembly also includes a synchronous toothed belt and a synchronous pulley;

[0015] Both the support shaft and the transmission shaft are fitted with the synchronous pulley;

[0016] The synchronous toothed belt is wound around the synchronous pulley between adjacent support shafts and transmission shafts.

[0017] Furthermore, when the first half gear meshes with the gear rack, the second half gear disengages from the gear rack, and when the second half gear meshes with the gear rack, the first half gear disengages from the gear rack.

[0018] Furthermore, several sliders are fixedly connected to the bottom of the connecting support plate, two vertical plates are fixedly connected to both sides of the fixing frame, a sliding rod is fixedly connected between the two vertical plates, and several sliders are movably sleeved on the outer surface of the sliding rod.

[0019] Furthermore, the adjustment assembly includes an adjustment screw and a knob; the adjustment screw is threaded through the front outer surface of the housing, the knob is fixedly connected to the side of the adjustment screw located outside the housing, and the end of the adjustment screw away from the knob is rotatably connected to the fixing frame.

[0020] Furthermore, two telescopic rods are fixedly connected to the inner front wall of the housing, and the other ends of the two telescopic rods are fixedly connected to the fixing frame.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The scraper structure of this toner cartridge is driven by a motor to rotate the support shaft. In conjunction with the transmission gear, synchronous pulley and synchronous toothed belt, the first half gear and the second half gear mesh in opposite directions to drive the transmission gear row, causing the connecting support plate to move back and forth. The connecting support plate drives the scraper body to move back and forth, which avoids the possibility of incomplete scraping of toner when the scraper body is in a fixed position, thus improving the scraping effect of toner on the drum core.

[0023] 2. The scraper structure of this toner cartridge is achieved by rotating a knob to drive an adjusting screw, which in turn moves a fixing frame, causing the scraper body to move and adjusting the contact distance between the scraper body and the drum core surface, thereby improving the scraping effect of the scraper body on the toner. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0026] Figure 3 This is a side sectional view of the present invention.

[0027] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Housing; 2. Drum core; 3. Scraper mounting bracket; 4. Scraper body; 5. Connecting support plate; 6. Fixing bracket; 7. Support shaft; 8. First half gear; 9. Second half gear; 10. Motor; 11. Drive shaft; 12. Drive gear; 13. Synchronous pulley; 14. Synchronous toothed belt; 15. Adjusting screw; 16. Knob; 17. Telescopic rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to the following: Figures 1-4This utility model provides a technical solution: a scraper structure for a toner cartridge, including a housing 1 and a drum core 2 disposed inside the housing 1. The housing 1 also includes a scraper mounting bracket 3, a fixing bracket 6, and a connecting support plate 5. The scraper mounting bracket 3 has a scraper body 4 on one side facing the drum core 2, and the other side of the scraper mounting bracket 3 is fixedly connected to the connecting support plate 5. The connecting support plate 5 has a toothed rack on one side facing the fixing bracket 6. The fixing bracket 6 has an adjustment component and a transmission component. The transmission component is used to drive the toothed rack to move the scraper body 4 along the length direction of the drum core 2. The adjustment component is used to drive the fixing bracket 6 to move and adjust the distance between the scraper body 4 and the drum core 2.

[0031] Furthermore, the transmission assembly includes a motor 10, a connecting assembly, a first half gear 8, a second half gear 9, and two support shafts 7; the output end of the motor 10 is fixedly connected to one of the support shafts 7, and the first half gear 8 and the second half gear 9 are respectively fixedly sleeved on the two support shafts 7; the connecting assembly connects the first half gear 8 and the second half gear 9, so that the first half gear 8 and the second half gear 9 rotate in opposite directions, driving the teeth of the first half gear 8 and the teeth of the second half gear 9 to mesh with the gear row in sequence, thereby driving the scraper body 4 to move along the length direction of the drum core 2.

[0032] Understandably, when the first half gear 8 meshes with the toothed rack 5, the second half gear 9 disengages from the toothed rack 5, and when the second half gear 9 meshes with the toothed rack 5, the first half gear 8 disengages from the toothed rack 5. Specifically, when the first half gear 8 meshes with the surface of the toothed rack, the second half gear 9 disengages from the surface of the toothed rack, thereby causing the first half gear 8 to move the connecting support plate 5 to one side, which in turn causes the scraper body 4 to move to one side. When the first half gear 8 disengages from the surface of the toothed rack, the second half gear 9 meshes with the surface of the toothed rack, thereby causing the second half gear 9 to move the connecting support plate 5 to the other side, which in turn causes the scraper body 4 to move to the other side.

[0033] Specifically, when motor 10 operates, it drives the support shaft 7 connected to its output end, which in turn drives the first half gear 8 on it to rotate. When the first half gear 8 meshes with the toothed rack, the second half gear 9 disengages from the surface of the toothed rack. As a result, the first half gear 8 drives the connecting support plate 5 to move to one side, thereby causing the scraper body 4 to move to one side. When the first half gear 8 disengages from the surface of the toothed rack, the second half gear 9 meshes with the surface of the toothed rack. As a result, the second half gear 9 drives the connecting support plate 5 to move to the other side, thereby causing the scraper body 4 to move to the other side. As motor 10 operates, it drives the scraper body 4 to move back and forth, avoiding the possibility of incomplete scraping of toner when the scraper body 4 is in a fixed position, thus improving the scraping effect of toner on the drum core 2.

[0034] Furthermore, the connecting assembly includes a drive shaft 11 and a drive gear 12, with the drive gear 12 sleeved on the drive shaft 11; there are two connecting assemblies, and the drive gears 12 of the two connecting assemblies mesh and drive each other, and the two connecting assemblies are respectively connected to the support shaft 7 of the first half gear 8 and the support shaft 7 of the second half gear 9.

[0035] Specifically, when one of the drive shafts 11 rotates, it drives the drive gear 12 on it to rotate, which causes the other drive gear 12 to rotate in the opposite direction, so that the rotation directions of the two drive shafts 11 are opposite, thereby causing the two support shafts 7 to rotate in opposite directions.

[0036] Furthermore, the connecting assembly also includes a synchronous toothed belt 14 and a synchronous pulley 13;

[0037] Both the support shaft 7 and the drive shaft 11 are fitted with synchronous pulleys 13; synchronous toothed belts 14 are wound around the synchronous pulleys 13 between adjacent support shafts 7 and drive shafts 11.

[0038] Specifically, when the support shaft 7 connected to the output end of the motor 10 rotates, it drives the synchronous pulley 13 on it to rotate. Under the action of the synchronous toothed belt 14, one drive shaft 11 rotates. Under the action of another set of synchronous pulleys 13 and synchronous toothed belts 14, the two support shafts 7 and the two drive shafts 11 rotate synchronously.

[0039] Furthermore, several sliders are fixedly connected to the bottom of the connecting support plate 5, and two vertical plates are fixedly connected to both sides of the fixing frame 6. A sliding rod is fixedly connected between the two vertical plates, and several sliders are movably sleeved on the outer surface of the sliding rod. Specifically, when the connecting support plate 5 moves back and forth, the sliders slide on the outer surface of the sliding rod, thereby making the connecting support plate move stably.

[0040] Furthermore, the adjustment assembly includes an adjustment screw 15 and a knob 16; the adjustment screw 15 is threaded through the outer front surface of the housing 1, and the knob 16 is fixedly connected to the side of the adjustment screw 15 located outside the housing 1, and the end of the adjustment screw 15 away from the knob 16 is rotatably connected to the fixing frame 6.

[0041] Furthermore, two telescopic rods 17 are fixedly connected to the inner front wall of the housing 1. The other ends of the two telescopic rods 17 are fixedly connected to the fixed frame 6. Specifically, when the adjusting screw 15 rotates and drives the fixed frame 6 to move, the telescopic rods 17 extend and retract. Under the action of the telescopic rods 17, the fixed frame 6 is prevented from rotating with the rotation of the adjusting screw 15.

[0042] In this embodiment, an adjusting screw 15 is threaded through the front outer surface of the housing 1. A knob 16 is fixedly connected to the adjusting screw 15 on the side outside the housing 1. The end of the adjusting screw 15 away from the knob 16 is rotatably connected to the fixing frame 6. Specifically, by rotating the knob 16, the adjusting screw 15 is driven to rotate, and the adjusting screw 15 drives the fixing frame 6 to move, so that the scraper body 4 moves, adjusting the contact distance between the scraper body 4 and the surface of the drum core 2, thereby improving the scraping effect of the scraper body 4 on the toner.

[0043] Specifically, in use, this invention scrapes the carbon powder on the drum core 2 using the scraper body 4. The motor 10 operates, driving the support shaft 7 connected to its output end, which in turn rotates the first half-gear 8 and the synchronous pulley 13. Under the action of the synchronous toothed belt 14, the transmission shaft 11 rotates, causing the transmission gear 12 on it to rotate. Under the transmission action of the other transmission gear 12, the synchronous pulley 13, and the synchronous toothed belt 14, the first half-gear 8 and the second half-gear 9 rotate in opposite directions. When the first half-gear 8 meshes with the surface of the gear rack, the second half-gear 9... The second half gear 9 disengages from the surface of the gear rack, causing the first half gear 8 to move the connecting support plate 5 to one side, which in turn causes the scraper body 4 to move to one side. When the first half gear 8 disengages from the surface of the gear rack, the second half gear 9 engages with the surface of the gear rack, causing the second half gear 9 to move the connecting support plate 5 to the other side, which in turn causes the scraper body 4 to move to the other side. As the motor 10 operates, it drives the scraper body 4 to move back and forth, which avoids the possibility of incomplete scraping of carbon powder when the scraper body 4 is in a fixed position, thus improving the scraping effect of carbon powder on the drum core 2.

[0044] By rotating the knob 16, the adjusting screw 15 is rotated, which in turn moves the fixing frame 6, causing the scraper body 4 to move. This adjusts the contact distance between the scraper body 4 and the surface of the drum core 2, thereby improving the scraping effect of the scraper body 4 on the toner.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scraper structure for a toner cartridge, comprising a housing and a drum core disposed inside the housing, characterized in that: The interior of the housing is also provided with a scraper mounting bracket, a fixing bracket and a connecting support plate; The scraper mounting bracket has a scraper body on one side facing the drum core, and the other side of the scraper mounting bracket is fixedly connected to the connecting support plate; The connecting support plate has a toothed rack on the side facing the fixed frame. The fixed frame has an adjustment component and a transmission component. The transmission component is used to drive the toothed rack so that the scraper body moves along the length direction of the drum core. The adjustment component is used to drive the fixed frame to move and adjust the distance between the scraper body and the drum core.

2. The scraper structure of a toner cartridge according to claim 1, characterized in that: The transmission assembly includes a motor, a coupling assembly, a first half gear, a second half gear, and two support shafts; The output end of the motor is fixedly connected to one of the support shafts, and the first half gear and the second half gear are respectively fixedly sleeved on the two support shafts; The connecting assembly connects the first half gear and the second half gear, causing the first half gear and the second half gear to rotate in opposite directions, thereby driving the teeth of the first half gear and the teeth of the second half gear to mesh with the gear row in sequence, and driving the scraper body to move along the length direction of the drum core.

3. The scraper structure of a toner cartridge according to claim 2, characterized in that: The connecting assembly includes a drive shaft and a drive gear, with the drive gear sleeved on the drive shaft; The number of connecting components is two, the transmission gears of the two connecting components mesh and drive each other, and the two connecting components are respectively connected to the support shaft of the first half gear and the support shaft of the second half gear.

4. The scraper structure of a toner cartridge according to claim 3, characterized in that: The connecting assembly also includes a synchronous toothed belt and a synchronous pulley; Both the support shaft and the transmission shaft are fitted with the synchronous pulley; The synchronous toothed belt is wound around the synchronous pulley between adjacent support shafts and transmission shafts.

5. The scraper structure of a toner cartridge according to claim 2, characterized in that: When the first half gear meshes with the gear rack, the second half gear disengages from the gear rack; when the second half gear meshes with the gear rack, the first half gear disengages from the gear rack.

6. The scraper structure of a toner cartridge according to any one of claims 1-5, characterized in that: Several sliders are fixedly connected to the bottom of the connecting support plate, two vertical plates are fixedly connected to both sides of the fixing frame, a sliding rod is fixedly connected between the two vertical plates, and several sliders are movably sleeved on the outer surface of the sliding rod.

7. The scraper structure of a toner cartridge according to claim 1, characterized in that: The adjustment assembly includes an adjustment screw and a knob; the adjustment screw is threaded through the outer front surface of the housing, and the knob is fixedly connected to the side of the adjustment screw outside the housing; the end of the adjustment screw away from the knob is rotatably connected to the fixing frame.

8. The scraper structure of a toner cartridge according to claim 7, characterized in that: Two telescopic rods are fixedly connected to the inner front wall of the housing, and the other ends of the two telescopic rods are fixedly connected to the fixing frame.

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