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CN-224218431-U - Paper feeding mechanism of scanner

CN224218431UCN 224218431 UCN224218431 UCN 224218431UCN-224218431-U

Abstract

The utility model provides a scanner paper feeding mechanism which comprises a paper feeding supporting plate and a driving assembly, wherein the driving assembly is arranged in a scanner body, one end of the paper feeding supporting plate, which is far away from a paper feeding port of the scanner body, is rotatably connected with the scanner body, the other end of the paper feeding supporting plate is a free end and is in transmission connection with the driving assembly, the driving assembly is used for driving the free end of the paper feeding supporting plate to rotate so as to be close to or far away from the paper feeding port of the scanner body, a first position sensor is arranged on the scanner body and used for detecting the position of the uppermost paper at the free end of the paper feeding supporting plate, the detected signal is transmitted to a controller, and the controller controls the start and stop of the driving assembly according to the received signal. The driving component can drive the free end of the paper feeding support plate to rotate, so that the free end of the paper feeding support plate is far away from the paper feeding port of the scanner body, the paper stacking amount of the paper feeding support plate is increased, and in the paper feeding process, the driving component can drive the free end of the paper feeding support plate to gradually approach the paper feeding port, so that normal paper feeding of the paper rubbing wheel is ensured.

Inventors

  • QIAN DANFENG

Assignees

  • 宁波华高信息科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (6)

  1. 1. A paper feeding mechanism of a scanner is arranged at a paper feeding port of a scanner body (1), and is characterized by comprising a paper feeding supporting plate (2) and a driving assembly (3), wherein the driving assembly (3) is arranged in the scanner body (1), one end, far away from the paper feeding port of the scanner body (1), of the paper feeding supporting plate (2) is rotatably connected with the scanner body (1), the other end is a free end and is in transmission connection with the driving assembly (3), and the driving assembly (3) is used for driving the free end of the paper feeding supporting plate (2) to rotate and further approach or keep away from the paper feeding port of the scanner body (1).
  2. 2. The paper feeding mechanism of claim 1, wherein the scanner body (1) is provided with a first position sensor, the first position sensor is electrically connected with a controller of the driving assembly (3) and is used for detecting the position of the uppermost paper at the free end of the paper feeding supporting plate (2) and transmitting the detected signal to the controller, and the controller controls the start and stop of the driving assembly (3) according to the received signal.
  3. 3. The scanner paper feeding mechanism according to claim 2, wherein the driving assembly (3) comprises a driving motor (31) and a driven wheel (32), the output end of the driving motor (31) is connected with a driving wheel, the driving wheel is in transmission connection with the driven wheel (32), the bottom of the free end of the paper feeding support plate (2) is connected with an arc gear part (21), the arc gear part (21) is coaxially arranged with a rotating shaft of the paper feeding support plate (2), and the driven wheel (32) is in transmission connection with the arc gear part (21) and is used for driving the free end of the paper feeding support plate (2) to rotate.
  4. 4. The paper feeding mechanism of the scanner of claim 3, wherein the scanner body (1) is rotatably connected with a driving shaft (33) parallel to the rotating shaft of the paper feeding support plate (2), the driven wheel (32) is connected to one end of the driving shaft (33), two arc-shaped gear parts (21) are respectively arranged on two sides of the bottom of the free end of the paper feeding support plate (2), two driving wheels (34) which are in one-to-one correspondence with the arc-shaped gear parts (21) are arranged on the driving shaft (33), and the driving wheels (34) are in meshed transmission with the corresponding arc-shaped gear parts (21).
  5. 5. The paper feeding mechanism for scanner as claimed in claim 3 or 4, wherein the driving assembly (3) further comprises a reduction gear set (35), and two ends of the reduction gear set (35) are respectively meshed with the driving wheel and the driven wheel (32).
  6. 6. The paper feeding mechanism of claim 5, wherein the scanner body (1) is provided with a second position sensor, and the second position sensor is electrically connected with a controller of the driving assembly (3) and is used for detecting the position of the bottom of the free end of the paper feeding supporting plate (2) and transmitting the detected signal to the controller, and the controller controls the start and stop of the driving assembly (3) according to the received signal.

Description

Paper feeding mechanism of scanner Technical Field The utility model relates to the technical field of scanners, in particular to a paper feeding mechanism of a scanner. Background Scanners are commonly used in computer peripheral devices to capture images and convert them to digital input devices that can be displayed, edited, stored, and output by a computer. At present, the existing paper feeding mechanism of the scanner is used for conveying paper on a paper feeding support plate into the scanner from a paper feeding port of the scanner through a paper rubbing wheel, however, the paper feeding support plate is fixedly arranged at the paper feeding port of the scanner, the paper piling amount (the number of paper) on the paper feeding support plate cannot be too large, otherwise, the paper feeding of the paper rubbing wheel is influenced by the height of the paper on the paper feeding support plate, so that a user is required to add the paper to the paper feeding support plate more frequently, and the working efficiency of the scanner is influenced. Disclosure of utility model The utility model aims to overcome the defects in the prior art and provide the scanner paper feeding mechanism capable of increasing the paper stacking amount. The technical scheme is that the scanner paper feeding mechanism is arranged at a paper feeding port of a scanner body and comprises a paper feeding supporting plate and a driving assembly, wherein the driving assembly is arranged in the scanner body, one end of the paper feeding supporting plate, which is far away from the paper feeding port of the scanner body, is rotatably connected with the scanner body, the other end of the paper feeding supporting plate is a free end and is in transmission connection with the driving assembly, and the driving assembly is used for driving the free end of the paper feeding supporting plate to rotate so as to be close to or far away from the paper feeding port of the scanner body. After adopting above structure, the scanner paper feeding mechanism of the utility model has the following advantages compared with the prior art: The paper feeding supporting plate is rotationally connected to the scanner body, and then the free end of the paper feeding supporting plate is driven to rotate through the driving component, so that the free end of the paper feeding supporting plate is far away from the paper feeding port of the scanner body, the paper stacking amount of the paper feeding supporting plate can be increased, and paper feeding of the paper rubbing wheel is not influenced; in the paper feeding process, the paper on the paper feeding supporting plate is reduced, the distance from the paper feeding port is increased, and in order to ensure normal paper feeding, the driving component drives the free end of the paper feeding supporting plate to rotate so as to gradually approach the paper feeding port, and ensure normal paper feeding of the paper rubbing wheel. Preferably, the scanner body is provided with a first position sensor, the first position sensor is electrically connected with a controller of the driving assembly, and is used for detecting the position of the uppermost paper at the free end of the paper feeding supporting plate, transmitting detected signals to the controller, and controlling the driving assembly to start and stop according to the received signals. The first position sensor can detect the position of the uppermost paper at the free end of the paper feeding supporting plate in real time, and control the driving assembly to drive the free end of the paper feeding supporting plate to rotate, so that the uppermost paper of the paper feeding supporting plate is always located at a proper paper feeding position. Preferably, the driving assembly comprises a driving motor and a driven wheel, the output end of the driving motor is connected with a driving wheel, the driving wheel is in transmission connection with the driven wheel, the bottom of the free end of the paper feeding support plate is connected with an arc gear part, the arc gear part is coaxially arranged with a rotating shaft of the paper feeding support plate, and the driven wheel is in transmission connection with the arc gear part and is used for driving the free end of the paper feeding support plate to rotate. Preferably, the scanner body is rotatably connected with a driving shaft parallel to the rotating shaft of the paper feeding support plate, the driven wheel is connected with one end of the driving shaft, the number of the arc-shaped gear parts is two, the two arc-shaped gear parts are respectively arranged on two sides of the bottom of the free end of the paper feeding support plate, the driving shaft is provided with two driving wheels which are in one-to-one correspondence with the arc-shaped gear parts, and the driving wheels are in meshed transmission with the corresponding arc-shaped gear parts. The driving motor drives the two arc gear parts