Paper conveying pickup roller structure of scanner

Abstract

The utility model relates to the technical field of paper conveying pickup rollers, in particular to a scanner paper conveying pickup roller structure which comprises a fixing sleeve. A paper twisting wheel assembly is installed on the inner side of the fixing sleeve and comprises a rotating shaft, the rotating shaft is movably installed on the inner side of the fixing sleeve through a bearing, a clamping groove is formed in the surface of the rotating shaft, a twisting wheel is arranged on the outer side of the rotating shaft in a sleeving mode, and a movable groove is formed in the inner wall of the twisting wheel; clamping blocks are slidably mounted on the inner sides of the movable grooves, and first springs are fixedly connected to the top faces of the clamping blocks. A cleaning structure is installed on the fixing sleeve and comprises a movable rod, and the movable rod is installed on the front face of the fixing sleeve in a sliding mode. According to the utility model, the clamping block is matched with the clamping groove, so that the rubbing wheel can be conveniently disassembled and assembled on the rotating shaft, the rubbing wheel can be quickly replaced when the rubbing wheel is abraded, the operation is convenient and fast, and the use efficiency of an instrument can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of paper conveying pickup wheels, in particular to a scanner paper conveying pickup wheel structure. Background Art

[0002] The pickup roller is a wheel that can pull paper off the paper pile. It is mainly used in office equipment such as printers, copiers, quick-print machines, digital integrated printing machines, etc. Its working principle is that when the transmission shaft where the pickup roller is located rotates, the one-way clutch (one-way bearing) brake drives the pickup roller to rotate, and the paper that has been pressed under the pickup roller is stuck and driven to move forward.

[0003] In this regard, China's patent application number: CN202222886634.4 discloses a paper feeder pickup roller, comprising a wheel shaft and a plurality of pickup rollers connected to the outside of the wheel shaft, wherein the outside of the wheel shaft is fixedly mounted with a plurality of mounting sleeves, and a plurality of locking holes are opened on both sides of the outer wall of the mounting sleeve along the circumferential direction, and a fixing ring is fixedly mounted at both ends of the pickup roller, and an adjusting ring is provided on the outside of the fixing ring; the utility model has a simple structure, and when the pickup roller is disassembled, it is only necessary to rotate the adjusting ring first so that the hidden holes on the inner wall of the adjusting ring correspond to the ball grooves one by one. At this time, the ball will also enter the hidden hole, so the ball will leave the locking hole when the squeezing of the inner wall of the adjusting ring is lost, and the pickup roller can be removed from the mounting sleeve of the wheel shaft. The operation is convenient and quick, and it is convenient for people to install and disassemble the pickup roller, and the ball is stuck in the locking hole to prevent the pickup roller from rotating during the paper picking process.

[0004] The paper rubbing wheel can be disassembled and assembled through the ball through the cooperation of the hidden hole and the ball groove. However, the paper rubbing wheel is mostly installed horizontally. The ball located at the upper end of the fixed ring needs to be moved upward to the hidden hole before the paper rubbing wheel can be removed. The ball is difficult to move according to needs, which affects the disassembly and assembly experience of the paper rubbing wheel.

[0005] Therefore, in order to solve the above problems, a scanner paper feeding pickup roller structure is proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide a scanner paper feeding pickup wheel structure to solve the problem that the pickup wheel in the prior art mentioned in the above background technology can be disassembled and assembled by the ball through the cooperation of the hidden hole and the ball groove, but the pickup wheel is mostly installed horizontally, and the ball located at the upper end of the fixed ring needs to be moved upward to the hidden hole before the pickup wheel can be removed. The ball is difficult to move according to demand, which affects the disassembly and assembly experience of the pickup wheel.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a scanner paper feeding pickup roller structure, comprising: a fixing sleeve;

[0008] A pickup roller assembly is installed on the inner side of the fixed sleeve, and the pickup roller assembly includes a rotating shaft, which is movably installed on the inner side of the fixed sleeve through a bearing, a clamping groove is provided on the surface of the rotating shaft, and a pickup roller is provided on the outer side of the rotating shaft, and a movable groove is provided on the inner wall of the pickup roller, and a clamping block is slidably installed on the inner side of the movable groove, and a first spring is fixedly connected to the top surface of the clamping block;

[0009] A cleaning structure is installed on the fixing sleeve. The cleaning structure includes a movable rod. The movable rod is slidably installed on the front side of the fixing sleeve.

[0010] Preferably, a brush is bonded to the middle of the rear wall of the movable rod, a convex point is integrally formed on the left end of the rear wall of the movable rod, a second spring is fixedly connected to the outer side of the right end of the movable rod, a collection box is fixedly installed on the bottom surface of the fixed sleeve, and a convex ball disk is fixedly installed on the outer surface of the middle left end of the fixed sleeve.

[0011] Preferably, the rubbing wheel is located on the right side of the convex ball disk, and the rotating shaft and the bearing are arranged in a detachable structure.

[0012] Preferably, the rubbing wheel is located outside the slot, the bottom end of the clamping block is exposed inside the movable slot and inserted into the slot, and one end of the first spring is fixedly connected to the inner wall of the movable slot.

[0013] Preferably, the movable rod is located in front of the rubbing wheel, and the brush is in contact with the rubbing wheel.

[0014] Preferably, the convex point cooperates with the convex ball disk, and one end of the second spring is fixedly connected to the fixing sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the present invention can facilitate the disassembly and assembly of the rubbing wheel on the rotating shaft by setting the cooperation of the card block and the card slot, and can quickly replace the rubbing wheel when it is worn, which is easy to operate and can ensure the efficiency of the instrument.

[0016] 1. The utility model is provided with a pickup roller assembly. When the pickup roller needs to be replaced, the rotating shaft is removed from the fixed sleeve. Then, a magnet is used to fit the surface of the pickup roller. The clamping block is attracted by the magnet and rises in the movable groove. The clamping block presses the first spring, and the bottom end of the clamping block is disengaged from the clamping groove. The fixed connection between the pickup roller and the rotating shaft is released. The pickup roller can then be removed from the rotating shaft. A new pickup roller is sleeved on the outer side of the rotating shaft. The clamping groove pushes the clamping block, causing the clamping block to continuously retract into the movable groove. The pickup roller is moved. When the clamping block and the clamping groove are aligned vertically, the clamping block is extended under the action of the first spring and is clamped in the clamping groove, thereby achieving stable installation of the pickup roller on the rotating shaft.

[0017] 2. The utility model is provided with a cleaning structure. The rotating shaft rotates and drives the rubbing wheel and the convex ball disk to rotate. When the convex ball disk contacts the convex point, the movable rod will be pushed to move on the fixed sleeve through the convex point and squeeze the second spring. The movable rod drives the brush to move laterally on the outer surface of the rubbing wheel. When the convex ball disk is separated from the convex point, the movable rod is reset under the action of the second spring, so that the movable rod moves back and forth, and cooperates with the brush to clean impurities on the surface of the rubbing wheel. The impurities can fall down into the collection box, realizing unified collection of impurities and ensuring the contact effect between the rubbing wheel and the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic front view of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the front cross-sectional structure of the rubbing wheel of the utility model;

[0021] Figure 4 This is an exploded schematic diagram of the back view of the cleaning structure of the utility model.

[0022] In the figure: 1. Fixed sleeve; 2. Pickup roller assembly; 21. Rotating shaft; 22. Card slot; 23. Pickup roller; 24. Movable slot; 25. Card block; 26. First spring; 3. Cleaning structure; 31. Movable rod; 32. Brush; 33. Bump; 34. Second spring; 35. Collection box; 36. Ball disc. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4 , an embodiment provided by the utility model:

[0025] The fixing sleeve 1 used in this application is a product that can be directly purchased on the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0026] A scanner paper feeding pickup roller structure, comprising: a fixed sleeve 1, the fixed sleeve 1 is installed inside the scanner to provide support for the installation of the pickup roller assembly 2 and the cleaning structure 3 in the scanner;

[0027] A pickup roller assembly 2 is installed on the inner side of the fixed sleeve 1. The pickup roller assembly 2 includes a rotating shaft 21. The rotating shaft 21 is movably installed on the inner side of the fixed sleeve 1 through a bearing. A card slot 22 is provided on the surface of the rotating shaft 21. A pickup roller 23 is provided on the outer side of the rotating shaft 21. A movable slot 24 is provided on the inner wall of the pickup roller 23. A card block 25 is slidably installed on the inner side of the movable slot 24. A first spring 26 is fixedly connected to the top surface of the card block 25. Through the cooperation of the card block 25 and the card slot 22, the pickup roller 23 can be easily assembled and disassembled on the rotating shaft 21. When the pickup roller 23 is worn, the pickup roller 23 can be quickly replaced. The operation is convenient, and the efficiency of the instrument can be guaranteed.

[0028] A cleaning structure 3 is installed on the fixing sleeve 1 . The cleaning structure 3 includes a movable rod 31 . The movable rod 31 is slidably installed on the front side of the fixing sleeve 1 .

[0029] When the cam 36 contacts the convex point 33, the movable rod 31 is pushed on the fixed sleeve 1 through the convex point 33 and squeezed by the second spring 34, so that the movable rod 31 drives the brush 32 to move laterally on the outer surface of the rubbing wheel 23. When the convex point 36 separates from the convex point 33, the movable rod 31 is reset under the action of the second spring 34, so that the movable rod 31 moves back and forth, and cooperates with the brush 32 to clean impurities on the surface of the rubbing wheel 23, and the impurities can fall downward into the collection box 35, thereby realizing unified collection of impurities and ensuring the contact effect between the rubbing wheel 23 and the paper.

[0030] Furthermore, the rubbing wheel 23 is located on the right side of the convex ball plate 36, and the structure between the rotating shaft 21 and the bearing is detachable. The setting of the bearing will not hinder the rubbing wheel 23 from being disassembled and assembled on the rotating shaft 21, and ensures the stable rotation of the rotating shaft 21 in the fixed sleeve 1.

[0031] Furthermore, the rubbing wheel 23 is located on the outside of the card slot 22, the bottom end of the block 25 is exposed inside the movable slot 24, and is inserted into the card slot 22, one end of the first spring 26 is fixedly connected to the inner wall of the movable slot 24, and the first spring 26 provides power for the block 25 to be inserted into the card slot 22, so that the rubbing wheel 23 is stably installed on the rotating shaft 21.

[0032] Furthermore, the movable rod 31 is located in front of the rubbing wheel 23 , and the brush 32 is in contact with the rubbing wheel 23 . The movable rod 31 drives the brush 32 to clean the front of the rubbing wheel 23 horizontally.

[0033] Furthermore, the convex point 33 cooperates with the convex ball disc 36, one end of the second spring 34 is fixedly connected to the fixed sleeve 1, the convex ball disc 36 can rotate to push the movable rod 31 through the convex point 33, and the second spring 34 provides power for the reset of the movable rod 31 when the convex ball disc 36 is separated from the convex point 33.

[0034] Working principle: When the rubbing wheel 23 needs to be replaced, the rotating shaft 21 is removed from the fixed sleeve 1, and then a magnet is used to fit the surface of the rubbing wheel 23. The clamping block 25 is attracted by the magnet and rises in the movable groove 24, squeezing the first spring 26. The bottom end of the clamping block 25 is disengaged from the clamping groove 22, and the fixed connection between the rubbing wheel 23 and the rotating shaft 21 is released. The rubbing wheel 23 can be removed from the rotating shaft 21, and a new rubbing wheel 23 is sleeved on the outside of the rotating shaft 21. The clamping groove 22 pushes the clamping block 25, so that the clamping block 25 continues to retract into the movable groove 24, and the rubbing wheel 23 is moved. When the clamping block 25 and the clamping groove 22 are aligned up and down, the clamping block 25 is extended under the action of the first spring 26 and is clamped in the clamping groove 22, thereby achieving stable installation of the rubbing wheel 23 on the rotating shaft 21.

[0035] When in use, the rotating shaft 21 will rotate and drive the rubbing wheel 23 and the convex ball plate 36 to rotate. When the convex ball plate 36 contacts the convex point 33, the movable rod 31 will be pushed to move on the fixed sleeve 1 through the convex point 33 and squeeze the second spring 34. The movable rod 31 drives the brush 32 to move laterally on the outer surface of the rubbing wheel 23. When the convex ball plate 36 is separated from the convex point 33, the movable rod 31 is reset under the action of the second spring 34, so that the movable rod 31 moves back and forth, and cooperates with the brush 32 to clean impurities on the surface of the rubbing wheel 23, and the impurities can fall down into the collection box 35, thereby realizing unified collection of impurities and ensuring the contact effect between the rubbing wheel 23 and the paper.

[0036] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A scanner paper feeding pickup roller structure, comprising: Fixed sleeve (1); Its characteristics are: A pickup roller assembly (2) is installed on the inner side of the fixed sleeve (1), and the pickup roller assembly (2) comprises a rotating shaft (21), the rotating shaft (21) is movably installed on the inner side of the fixed sleeve (1) through a bearing, a clamping groove (22) is provided on the surface of the rotating shaft (21), a pickup roller (23) is provided on the outer side of the rotating shaft (21), a movable groove (24) is provided on the inner wall of the pickup roller (23), a clamping block (25) is slidably installed on the inner side of the movable groove (24), and a first spring (26) is fixedly connected to the top surface of the clamping block (25); A cleaning structure (3) is installed on the fixed sleeve (1), and the cleaning structure (3) includes a movable rod (31). The movable rod (31) is slidably installed on the front side of the fixed sleeve (1).

2. The scanner paper feeding pickup roller structure according to claim 1, characterized in that: A brush (32) is bonded to the middle of the rear wall of the movable rod (31), a convex point (33) is integrally formed on the left end of the rear wall of the movable rod (31), a second spring (34) is fixedly connected to the outer side of the right end of the movable rod (31), a collecting box (35) is fixedly installed on the bottom surface of the fixed sleeve (1), and a convex ball disk (36) is fixedly installed on the outer surface of the left end of the middle part of the fixed sleeve (1).

3. The scanner paper feeding pickup roller structure according to claim 1, characterized in that: The rubbing wheel (23) is located on the right side of the convex ball disc (36), and the rotating shaft (21) and the bearing are in a detachable structure.

4. The scanner paper feeding pickup roller structure according to claim 1, characterized in that: The rubbing wheel (23) is located outside the clamping slot (22), the bottom end of the clamping block (25) is exposed inside the movable slot (24) and is inserted into the clamping slot (22), and one end of the first spring (26) is fixedly connected to the inner wall of the movable slot (24).

5. The scanner paper feeding pickup roller structure according to claim 2, characterized in that: The movable rod (31) is located at the front side of the rubbing wheel (23), and the brush (32) is in contact with the rubbing wheel (23).

6. The scanner paper feeding pickup roller structure according to claim 2, characterized in that: The convex point (33) and the convex ball disk (36) cooperate with each other, and one end of the second spring (34) is fixedly connected to the fixing sleeve (1).

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