Paper feeding rubber roller capable of being replaced quickly

Abstract

The utility model relates to the field of paper feeding rubber covered rollers, and discloses a paper feeding rubber covered roller capable of being replaced quickly, which comprises an elastic sleeve, a rotating shaft is rotatably inserted in the elastic sleeve, threaded columns are respectively fixed at two ends of the rotating shaft, a positioning groove is arranged at one end of the elastic sleeve, a threaded ring is rotatably arranged in the positioning groove, and the threaded ring is sleeved on the rotating shaft. The threaded ring is in threaded connection with the threaded column on the right side, an adjusting groove is formed in the other end of the elastic sleeve, an adjusting ring is rotationally arranged in the adjusting groove, and the adjusting ring is in threaded connection with the threaded column on the left side. According to the utility model, when a worker installs the elastic sleeve on the rotating shaft, the worker can firstly screw the adjusting ring on the threaded column on the left side, and the worker can adjust the position of the elastic sleeve on the rotating shaft by adjusting the positions of the threaded ring and the adjusting ring on the threaded column; therefore, the elastic sleeve can be in full contact with the paper, and the paper feeding effect of the elastic sleeve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper feeding rubber rollers, in particular to a fast-changing paper feeding rubber roller. Background Art

[0002] The paper feed roller transfers the paper from the paper supply area to a specific area through friction and finally outputs the finished paper. The characteristic of the paper feed roller is that its surface usually has a good friction coefficient to ensure stable feeding of various types of paper. This kind of roller plays a vital role in office equipment such as printers and copiers, and its performance directly affects the paper feeding stability and printing effect.

[0003] According to the Chinese patent with the announcement number: CN216736987U, a paper feeding rubber roller that is easy to replace includes a roller shaft, and a contraction device is provided on both sides of the roller shaft. The contraction device can change the overall length of the roller shaft, and a fixing device is provided on the outer side of the contraction device. The fixing device is used to fix the contraction device and the power device of the equipment together; the roller shaft includes a roller, and short shafts are fixedly connected on both sides of the roller, and the outer sides of the two short shafts are fixedly connected to the contraction device. When the rubber roller needs to be replaced, the contraction device can be pulled inward to shorten the entire rubber roller, so that the rubber roller can be put on the fixing device for transmission.

[0004] In the above scheme, a fixing device is used to fix the roller shaft and the power device together, which still has the following disadvantages: after the roller shaft and the power device are fixed, the position cannot be adjusted, and the roller shaft may not be in the center of the paper feeding, which may reduce the paper feeding effect. Utility Model Content

[0005] The utility model aims to provide a fast-replaceable paper feeding rubber roller to solve the problem that the roller shaft may not be located at the center of the paper feeding, which may cause a reduction in the paper feeding effect.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a quickly replaced paper feeding rubber roller, including an elastic sleeve, a rotating shaft is rotatably inserted into the elastic sleeve, threaded columns are respectively fixed at both ends of the rotating shaft, a positioning groove is opened at one end of the elastic sleeve, a threaded ring is rotatably arranged inside the positioning groove, the threaded ring is threadedly connected to the threaded column on the right side, an adjustment groove is opened at the other end of the elastic sleeve, an adjustment ring is rotatably arranged inside the adjustment groove, and the adjustment ring is threadedly connected to the threaded column on the left side.

[0007] Preferably, a plurality of limiting columns are fixed on one side of the adjustment ring, a plurality of limiting grooves are opened on one side inside the adjustment groove, and the limiting columns and the limiting grooves are slidably inserted.

[0008] Preferably, two ends of the two threaded columns that are away from each other are respectively slidably provided with movable columns, and two ends of the two movable columns that are away from each other are respectively provided with loading and unloading grooves.

[0009] Preferably, sliding plates are fixed to two ends of the two movable columns that are close to each other, and sliding grooves are provided to two ends of the two threaded columns that are far away from each other, and the sliding plates and the sliding grooves are slidably inserted.

[0010] Preferably, two sliding rods are fixed at the two ends of the two movable columns that are close to each other, and two storage grooves are provided at the two ends of the two threaded columns that are away from each other. The sliding rods and the storage grooves are slidably inserted, and a spring is wrapped around the sliding rod, one end of the spring is fixed to one end of the threaded column, and the other end of the spring is fixed to one end of the movable column.

[0011] Preferably, a threaded hole is provided on the surface of the movable column, and the internal thread of the threaded hole is connected to a limiting bolt.

[0012] Compared with the prior art, the quick-change paper feeding rubber roller using the above technical solution has the following beneficial effects:

[0013] 1. When installing the elastic sleeve on the rotating shaft, the staff will first screw the adjustment ring on the left threaded column and fix it in the current position. Then the staff will put the elastic sleeve on the rotating shaft and make the adjustment ring inside the adjustment groove, so as to preliminarily determine the position of the elastic sleeve on the rotating shaft. Then the staff will screw the threaded ring on the right threaded column and screw it into the positioning groove. The staff can adjust the position of the elastic sleeve on the rotating shaft by adjusting the position of the threaded ring and the adjustment ring on the threaded column, ensuring that the elastic sleeve can fully contact with the paper, thereby increasing the paper feeding effect of the elastic sleeve.

[0014] Second, the output shaft of the motor will be inserted into the loading and unloading groove, and the motor will be used to drive the output shaft, the movable column, the threaded column and the rotating shaft to rotate. When disassembling and replacing the rotating shaft, the staff can first apply a force to the movable column in the direction away from the motor, so that the output shaft of the motor is separated from the loading and unloading groove, and compress the spring, and then the motor and the movable column can be separated. When installing a new rotating shaft, the staff will also apply opposite forces to the two movable columns to squeeze the spring to contract, and then move the movable column until the loading and unloading groove is aligned with the output shaft of the motor, and then remove the force applied to the movable column, the compressed spring is reset, and the loading and unloading groove can be sleeved on the output shaft of the motor, thereby increasing the convenience when disassembling and assembling the rotating shaft;

[0015] 3. After completing the replacement and installation of the rotating shaft, the staff will screw the limit bolt into the threaded hole so that the bottom end of the limit bolt is pressed against the surface of the motor output shaft, increasing the firmness of the motor output shaft in the loading and unloading groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded perspective schematic diagram of an embodiment.

[0018] Figure 3 It is an exploded schematic diagram of the rotating shaft and the adjusting ring in the embodiment.

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0020] In the figure: 1. elastic sleeve; 2. rotating shaft; 3. threaded column; 4. positioning groove; 5. threaded ring; 6. adjustment groove; 7. adjustment ring; 8. limit column; 9. limit groove; 10. movable column; 11. loading and unloading groove; 12. sliding plate; 13. sliding groove; 14. sliding rod; 15. storage groove; 16. spring; 17. threaded hole; 18. limit bolt. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 3 As shown, a quick-change paper feeding rubber roller comprises an elastic sleeve 1, a rotating shaft 2 is rotatably inserted in the elastic sleeve 1, threaded columns 3 are respectively fixed at both ends of the rotating shaft 2, a positioning groove 4 is provided at one end of the elastic sleeve 1, a threaded ring 5 is rotatably provided inside the positioning groove 4, and the threaded ring 5 is threadedly connected with the right threaded column 3, an adjustment groove 6 is provided at the other end of the elastic sleeve 1, an adjustment ring 7 is rotatably provided inside the adjustment groove 6, and the adjustment ring 7 is threadedly connected with the left threaded column 3, a plurality of limiting columns 8 are fixed on one side of the adjustment ring 7, a plurality of limiting grooves 9 are provided on one side of the inner side of the adjustment groove 6, and the limiting columns 8 and the limiting grooves 9 are slidably inserted.

[0023] During use, when the staff installs the elastic sleeve 1 on the rotating shaft 2, the staff will first screw the adjusting ring 7 onto the left threaded column 3 and fix it in the current position. Then the staff will sleeve the elastic sleeve 1 onto the rotating shaft 2 and make the adjusting ring 7 inside the adjusting groove 6, so as to preliminarily determine the position of the elastic sleeve 1 on the rotating shaft 2. Then the staff will screw the threaded ring 5 onto the right threaded column 3 and screw it into the positioning groove 4. The staff can adjust the position of the elastic sleeve 1 on the rotating shaft 2 by adjusting the positions of the threaded ring 5 and the adjusting ring 7 on the threaded column 3, thereby ensuring that the elastic sleeve 1 can fully contact the paper, thereby increasing the paper feeding effect of the elastic sleeve 1.

[0024] like Figure 2-Figure 4 As shown, movable columns 10 are slidably provided at the two ends of the two threaded columns 3 that are away from each other, and loading and unloading grooves 11 are respectively opened at the two ends of the two movable columns 10 that are close to each other. Sliding plates 12 are fixed at the two ends of the two movable columns 10 that are close to each other, and sliding grooves 13 are respectively opened at the two ends of the two threaded columns 3 that are away from each other. The sliding plates 12 and the sliding grooves 13 are slidably inserted. Two sliding rods 14 are fixed at the two ends of the two movable columns 10 that are close to each other, and two storage grooves 15 are respectively opened at the two ends of the two threaded columns 3 that are away from each other. The sliding rods 14 and the storage grooves 15 are slidably inserted. A spring 16 is surrounded on the sliding rod 14, one end of the spring 16 is fixed to one end of the threaded column 3, and the other end of the spring 16 is fixed to one end of the movable column 10.

[0025] During use, the output shaft of the motor will be inserted into the loading and unloading groove 11, and the motor will be used to drive the output shaft, movable column 10, threaded column 3 and rotating shaft 2 to rotate. When disassembling and replacing the rotating shaft 2, the staff can first apply a force to the movable column 10 in the direction away from the motor, so that the output shaft of the motor is disengaged from the loading and unloading groove 11, and compress the spring 16, so that the motor and the movable column 10 can be separated. When installing a new rotating shaft 2, the staff will also apply opposite forces to the two movable columns 10, squeezing the spring 16 to contract, and then move the movable column 10 until the loading and unloading groove 11 is aligned with the output shaft of the motor, and then remove the force applied to the movable column 10, the compressed spring 16 is reset, and the loading and unloading groove 11 can be sleeved on the output shaft of the motor, thereby increasing the convenience when disassembling and assembling the rotating shaft 2.

[0026] like Figure 4 As shown, a threaded hole 17 is formed on the surface of the movable column 10 , and a limit bolt 18 is threadedly connected inside the threaded hole 17 .

[0027] During use, after completing the replacement and installation of the rotating shaft 2, the staff will screw the limit bolt 18 into the threaded hole 17 so that the bottom end of the limit bolt 18 is squeezed on the surface of the motor output shaft, increasing the firmness of the motor output shaft in the loading and unloading groove 11.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick-change paper feeding rubber roller, comprising an elastic sleeve (1), wherein the elastic sleeve (1) is rotatably inserted with a rotating shaft (2), characterized in that: Threaded columns (3) are respectively fixed at both ends of the rotating shaft (2); a positioning groove (4) is provided at one end of the elastic sleeve (1); a threaded ring (5) is rotatably arranged inside the positioning groove (4); the threaded ring (5) is threadedly connected to the right threaded column (3); an adjustment groove (6) is provided at the other end of the elastic sleeve (1); an adjustment ring (7) is rotatably arranged inside the adjustment groove (6); the adjustment ring (7) is threadedly connected to the left threaded column (3).

2. The quick-change paper feeding rubber roller according to claim 1, characterized in that: A plurality of limiting columns (8) are fixed on one side of the adjustment ring (7), a plurality of limiting grooves (9) are opened on one side inside the adjustment groove (6), and the limiting columns (8) and the limiting grooves (9) are slidably inserted.

3. The quick-change paper feeding rubber roller according to claim 1, characterized in that: Movable columns (10) are slidably arranged at two ends of the two threaded columns (3) that are away from each other, and loading and unloading grooves (11) are respectively provided at two ends of the two movable columns (10) that are away from each other.

4. The quick-change paper feeding rubber roller according to claim 3, characterized in that: The two ends of the two movable columns (10) close to each other are respectively fixed with sliding plates (12), and the two ends of the two threaded columns (3) away from each other are respectively provided with sliding grooves (13), and the sliding plates (12) and the sliding grooves (13) are slidably inserted.

5. The quick-change paper feeding rubber roller according to claim 3, characterized in that: Two sliding rods (14) are fixed to the two ends of the two movable columns (10) that are close to each other, and two storage grooves (15) are respectively provided at the two ends of the two threaded columns (3) that are away from each other. The sliding rods (14) and the storage grooves (15) are slidably inserted. A spring (16) is surrounded by the sliding rod (14), one end of the spring (16) is fixed to one end of the threaded column (3), and the other end of the spring (16) is fixed to one end of the movable column (10).

6. The quick-change paper feeding rubber roller according to claim 3, characterized in that: A threaded hole (17) is provided on the surface of the movable column (10), and a limit bolt (18) is connected to the inner thread of the threaded hole (17).

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