Printer paper feed position adjusting mechanism

Abstract

The utility model relates to printer technical field discloses printer paper feed paper position adjusting mechanism, including the support fixed assembly for supporting firm, the inside of support fixed assembly is provided with the transmission assembly for driving, transmission assembly is used for adjusting the circumferential relative position of transmission bull gear and heaven and earth main gear in position adjusting assembly, outside transmission assembly is engaged with rack through change -speed gear group, drives fixed base one and drives adjusting swing board action, makes double gear wheel rotation, double gear wheel is engaged with transmission bull gear, heaven and earth main gear, drives rotating shaft rotation, thus adjusting swing board, fixed base one and the movement of the tab to sensor assembly, the circumferential relative position of transmission bull gear and heaven and earth main gear decides subsequent execution component synchronous accuracy, position adjusting assembly offsets assembly error through the dynamic change of two gear engagement phase, ensures transmission precision, the swing of adjusting swing board can fine adjustment two gear angle, adapts working condition, compensates wear and tear, prolongs life.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a printer paper feed position adjustment mechanism. Background Technology

[0002] With the widespread use of printers in offices and homes, users have increasingly higher requirements for printer performance and ease of use. Convenient and quick paper feed position adjustment function can make it easier for users to use printers, reduce printing interruptions and paper waste caused by paper feed problems, improve work efficiency, and provide users with a better user experience.

[0003] Chinese patent CN119142043A discloses a printer paper feed width adjustment mechanism, including a paper feed width adjustment body, an adjustment plate I, an adjustment plate II, a rotating rocker arm, and a locking structure. The adjustment plate I and the adjustment plate II are respectively installed on both sides of the front of the paper feed width adjustment body, and both can move horizontally along the slide groove on the paper feed width adjustment body. The corresponding slide grooves of the two are not on the same straight line. The rotating rocker arm is rotatably connected to the middle of the back of the paper feed width adjustment body. At the same time, the two ends of the rotating rocker arm are respectively connected to the adjustment plate I and the adjustment plate II, so that the two move towards each other or in opposite directions. The locking structure is used to lock the position of the adjustment plate I. This invention has the advantages of low precision requirements for parts and low processing difficulty. In particular, it has fewer installation steps and is suitable for mass industrial production.

[0004] However, the following shortcomings still exist:

[0005] In the process of position adjustment, the existing mechanism has the following problems: it cannot offset the position error caused by machining tolerance and installation deviation during assembly, it is difficult to ensure the accuracy of power transmission, it has poor flexible adjustment capability, it is prone to wear after a period of use, thus shortening its service life, and at the same time, it is impossible to grasp the adjustment status and position information of the adjustment component in real time. Therefore, those skilled in the art provide a printer paper feed position adjustment mechanism to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a paper feed position adjustment mechanism for printers, thereby solving the problems mentioned in the background section of the prior art.

[0007] This utility model provides the following technical solution: a printer paper feed position adjustment mechanism, including a support and fixing component for stable support, a transmission component for driving is provided inside the support and fixing component, a position adjustment component is assembled on one side of the transmission component, and the transmission component is used to adjust the circumferential relative position of the transmission gear and the main gear inside the position adjustment component.

[0008] As a preferred embodiment of the above technical solution, the position adjustment component includes an adjustment swing plate, the free end of which is connected to an arc-shaped fixed base, the outer end face of which is provided with a rack that meshes with the transmission component, the lower end of the adjustment swing plate is fixedly connected to a paddle, and a double gear is rotatably connected to the adjustment swing plate.

[0009] As a preferred embodiment of the above technical solution, a corner plate is fixedly connected to the rear of the adjusting swing plate, and a connecting plate is fixedly connected to the rear of the corner plate. A slot is provided on one side of the connecting plate, and an arc-shaped fixing seat is fixedly connected to the rear of the connecting plate. A rotating shaft is rotatably connected to one side of the double gear near the center of the slot. A fixing ring is fixedly fitted on the outside of the rotating shaft. A transmission gear is rotatably connected to the rear of the fixing ring. A connecting plate is connected to the rear of the transmission gear. A top and bottom main gear is rotatably connected to the front of the transmission gear away from the fixing ring. Both the transmission gear and the top and bottom main gears mesh with the double gear. A positioning ring is fixedly connected to the rear of the transmission gear near the slot, and a limit ring is fixedly connected to the rear of the connecting plate near the slot.

[0010] As a preferred embodiment of the above technical solution, a sensor assembly is provided at the lower end of the paddle, the sensor assembly includes a mounting plate, and a slotted photoelectric sensor is provided at the upper end of the mounting plate, the center of the channel of the slotted photoelectric sensor coinciding with the central axis of the paddle.

[0011] As a preferred embodiment of the above technical solution, the support and fixing assembly includes a fixing bracket one, a fixing bracket two fixedly installed on one side of the fixing bracket one, a fixing bracket three fixedly installed on the front of the fixing bracket two, and a mounting bracket fixedly installed on one side of the fixing bracket three.

[0012] As a preferred embodiment of the above technical solution, the transmission component includes a motor, which is fixedly installed on one side of the lower end of the fixed bracket three. The drive end of the motor is connected to a worm gear, and a speed-changing gear set is provided on one side of the worm gear. The worm gear and the speed-changing gear set mesh with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The external transmission component of this utility model meshes with the rack and pinion via a gear set, drives the fixed base to move the adjusting swing plate, causing the double gear to rotate. The double gear meshes with the transmission large gear and the top and bottom main gears, driving the rotating shaft to rotate. Thus, the adjusting swing plate, the fixed base and the paddle move toward the sensor component. The circumferential relative position of the transmission large gear and the top and bottom main gears determines the synchronization accuracy of the subsequent execution components. The position adjustment component dynamically changes the meshing phase of the two gears to offset assembly errors and ensure accurate transmission. The swing of the adjusting swing plate can finely adjust the angle of the two gears to adapt to working conditions, compensate for wear, and extend service life.

[0015] 2. When the position adjustment component of this utility model is activated, the lever moves synchronously with the swing plate and accurately enters the slot-shaped photoelectric sensor. Because the central shafts coincide, the lever blocks or transmits photoelectric signals, enabling the sensor to detect its displacement in real time, indirectly reflecting the status of the adjustment component, realizing real-time monitoring and precise control of the gear phase, ensuring that the paper feed adjustment is in place and the operation is safe. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the printer's paper feed position adjustment mechanism;

[0017] Figure 2 This is a right-side three-dimensional structural diagram of the printer's paper feed position adjustment mechanism;

[0018] Figure 3 A left-side three-dimensional structural diagram of the printer's paper feed position adjustment mechanism;

[0019] Figure 4 A schematic diagram of the overall disassembly structure of the printer's paper feed position adjustment mechanism;

[0020] Figure 5 This is a schematic diagram showing the overall disassembled structure of the printer's paper feed position adjustment mechanism.

[0021] Legend:

[0022] 1. Support and fixing components; 101. Fixing bracket one; 102. Fixing bracket two; 103. Fixing bracket three; 104. Mounting bracket; 2. Transmission components; 201. Motor; 202. Worm gear; 203. Variable speed gear set; 3. Position adjustment components; 301. Adjusting plate; 302. Fixing seat one; 303. Rack; 304. Paddle; 305. Double gear; 306. Angle plate; 307. Connecting plate; 308. Fixing seat two; 309. Rotating shaft; 3010. Fixing ring; 3011. Transmission large gear; 3012. Main gears; 3013. Positioning ring; 3014. Limiting ring; 4. Sensor components; 401. Mounting plate; 402. Slotted photoelectric sensor. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-5As shown, this utility model provides a technical solution: a printer paper feed position adjustment mechanism, including a support and fixing component 1 for stable support, a transmission component 2 for driving is provided inside the support and fixing component 1, a position adjustment component 3 is assembled on one side of the transmission component 2, and the transmission component 2 is used to adjust the circumferential relative position of the transmission gear 3011 and the main gear 3012 inside the position adjustment component 3.

[0025] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, the position adjustment assembly 3 includes an adjustment plate 301. An arc-shaped fixed base 302 is connected to the free end of the adjustment plate 301. A rack 303, meshing with the transmission assembly 2, is provided on the outer end face of the fixed base 302. A paddle 304 is fixedly connected to the lower end of the adjustment plate 301. A double gear 305 is rotatably connected to the adjustment plate 301. An angle plate 306 is fixedly connected to the rear of the adjustment plate 301. A connecting plate 307 is fixedly connected to the rear of the angle plate 306. A slot is provided on one side of the connecting plate 307. An arc-shaped fixed base 308 is fixedly connected to the rear of the connecting plate 307. One side of the double gear 305 is near... A rotating shaft 309 is rotatably connected to the center of the slot. A fixing ring 3010 is fixedly sleeved on the outside of the rotating shaft 309. A transmission gear 3011 is rotatably connected to the rear of the fixing ring 3010. A connecting plate 307 is connected to the rear of the transmission gear 3011. A top and bottom main gear 3012 is rotatably connected to the front of the transmission gear 3011 away from the fixing ring 3010. Both the transmission gear 3011 and the top and bottom main gears 3012 mesh with the double gear 305 for transmission. A positioning ring 3013 is fixedly connected to the rear of the transmission gear 3011 near the slot. A limit ring 3014 is fixedly connected to the rear of the connecting plate 307 near the slot.

[0026] Furthermore, when the external transmission component 2 drives the fixed base 302 through the meshing of the gear set 203 and the rack 303, the adjusting swing plate 301 will move synchronously under the drive of the fixed base 302, thereby driving the double gear 305 to rotate. At this time, the double gear 305 maintains meshing with the transmission large gear 3011 and the main gear 3012 respectively. While driving the rotating shaft 309 to rotate synchronously, the swing of the adjusting swing plate 301 will link the angle plate 306, the connecting plate 307 and the fixed base 308 to form synchronous movement. Through the meshing transmission of the rack 303 and the gear set 203, the entire mechanism achieves precise displacement. The adjusting swing plate 301, the fixed base 302 and the lever 304 will... The relative position of the circumferential rotation of the transmission gear 3011 and the main gear 3012 directly determines the synchronization accuracy of the subsequent actuators. The position adjustment component 3 dynamically changes the meshing phase of the two gears through the mechanical structure, which can effectively offset the positional error caused by machining tolerances and installation deviations during the assembly process, ensuring the accuracy of power transmission. The swing design of the adjustment plate 301 gives the mechanism flexible adjustment capability, allowing the transmission gear 3011 and the main gear 3012 to be finely adjusted within a certain angle to adapt to the transmission requirements under different working conditions. It can also compensate for the gap by fine adjustment after long-term use and component wear, thereby extending the service life of the mechanism.

[0027] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, a sensor assembly 4 is provided at the lower end of the lever 304. The sensor assembly 4 includes a mounting plate 401. A slotted photoelectric sensor 402 is provided at the upper end of the mounting plate 401. The center of the channel of the slotted photoelectric sensor 402 coincides with the central axis of the lever 304.

[0028] Furthermore, when the position adjustment component 3 is activated, the lever 304 moves synchronously with the adjustment plate 301 and gradually enters the channel of the slotted photoelectric sensor 402. Since the center of the channel of the slotted photoelectric sensor 402 coincides with the central axis of the lever 304, it can be ensured that the lever 304 accurately enters the channel. At this time, the lever 304 can block or transmit photoelectric signals to enable the slotted photoelectric sensor 402 to detect its displacement status in real time, thereby indirectly reflecting the adjustment status of the position adjustment component 3, realizing real-time monitoring and precise control of gear phase adjustment, and providing reliable guarantee for the adjustment of the printer paper feed position adjustment mechanism and its safe operation.

[0029] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, the transmission assembly 2 includes a motor 201, which is fixedly installed on one side of the lower end of the fixed bracket 103. The drive end of the motor 201 is connected to a worm gear 202, and a speed-changing gear set 203 is provided on one side of the worm gear 202. The worm gear 202 and the speed-changing gear set 203 mesh with each other.

[0030] Furthermore, the transmission component 2 is securely installed in the fixed bracket 102 and fixed bracket 103 supporting the fixed component 1, providing it with reliable support. When the motor 201 of the transmission component 2 starts, the drive end drives the worm 202 to rotate. The worm 202 meshes with the gear set 203, transmitting power to the gear set 203. Through the meshing transmission between the gears, the conversion of speed and torque is realized, ultimately providing a suitable power output for the subsequently associated position adjustment component 3.

[0031] Working principle: The transmission component 2 is stably supported by two brackets of the support and fixing component 1, and the position adjustment component 3 is supported and fixed by the fixing bracket 101. The mounting bracket 104 supports and fixes the double gear 305. After the motor 201 starts, it drives the worm gear 202 to rotate. After meshing with the transmission gear set 203, the transmission gear set 203 meshes with the rack 303, driving the fixing base 302 to drive the adjusting swing plate 301 to move, causing the double gear 305 to rotate. The double gear 305 meshes with the two main gears, driving the rotating shaft 309 and the related components to move synchronously. The adjusting plate 301 moves toward the sensor assembly 4. The circumferential position of the two main gears determines the synchronization accuracy of the actuator. The position adjusting assembly 3 cancels out the error by changing its meshing phase, ensuring accurate transmission. The swing of the adjusting plate 301 can finely adjust the gear angle to adapt to the working conditions, compensate for wear, and extend the service life. When the position adjusting assembly 3 is activated, the lever 304 moves with the adjusting plate 301. Because the central shaft coincides, it accurately enters the slotted photoelectric sensor 402. The lever 304 allows the sensor to detect the displacement in real time by blocking or transmitting light, reflecting the adjustment status, monitoring the gear phase, and ensuring that the paper feed adjustment is in place and safe.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A paper feed position adjustment mechanism for a printer, comprising a support and fixing component (1) for stable support, wherein a large transmission gear (3011) and a main gear (3012) coaxially connected to the support and fixing component (1); characterized in that: The support fixing component (1) is provided with a transmission component (2), and a position adjustment component (3) is assembled on one side of the transmission component (2). The transmission component (2) and the position adjustment component (3) are connected in transmission. The position adjustment component (3) is used to adjust the circumferential relative position of the transmission large gear (3011) and the top and bottom main gears (3012).

2. The printer paper feed position adjustment mechanism according to claim 1, characterized in that: The position adjustment component (3) includes an adjustment plate (301), the free end of which is connected to an arc-shaped fixed seat (302), the outer end face of which is provided with a rack (303) that meshes with the transmission component (2), the lower end of the adjustment plate (301) is fixedly connected to a paddle (304), and a double gear (305) is rotatably connected to the adjustment plate (301).

3. The printer paper feed position adjustment mechanism according to claim 2, characterized in that: An angle plate (306) is fixedly connected to the rear of the adjusting swing plate (301), and a connecting plate (307) is fixedly connected to the rear of the angle plate (306). A slot is provided on one side of the inner side of the connecting plate (307), and an arc-shaped fixing seat (308) is fixedly connected to the rear of the connecting plate (307). A rotating shaft (309) is rotatably connected to one side of the double gear (305) near the center of the slot. A fixing ring (3010) is fixedly sleeved on the outside of the rotating shaft (309), and a large transmission gear is rotatably connected to the rear of the fixing ring (3010). (3011), a connecting plate (307) is connected to the rear of the large transmission gear (3011), and a main gear (3012) is rotatably connected to the front of the large transmission gear (3011) away from the fixed ring (3010). Both the large transmission gear (3011) and the main gear (3012) mesh with the double gear (305) for transmission. A positioning ring (3013) is fixedly connected to the rear of the large transmission gear (3011) near the slot. A limit ring (3014) is fixedly connected to the rear of the connecting plate (307) near the slot.

4. The printer paper feed position adjustment mechanism according to claim 2, characterized in that: The lower end of the lever (304) is provided with a sensor assembly (4), the sensor assembly (4) includes a mounting plate (401), the upper end of the mounting plate (401) is provided with a slotted photoelectric sensor (402), the center of the channel of the slotted photoelectric sensor (402) coincides with the central axis of the lever (304).

5. The printer paper feed position adjustment mechanism according to claim 1, characterized in that: The support and fixing assembly (1) includes a fixing bracket one (101), a fixing bracket two (102) fixedly installed on one side of the fixing bracket one (101), a fixing bracket three (103) fixedly installed on the front of the fixing bracket two (102), and a mounting bracket (104) fixedly installed on one side of the fixing bracket three (103).

6. The printer paper feed position adjustment mechanism according to claim 5, characterized in that: The transmission assembly (2) includes a motor (201), which is fixedly installed on one side of the lower end of the fixed bracket (103). The drive end of the motor (201) is connected to a worm gear (202), and a speed-changing gear set (203) is provided on one side of the worm gear (202). The worm gear (202) and the speed-changing gear set (203) mesh with each other.

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