Printer paper feed drive control mechanism

Abstract

The utility model relates to transmission mechanism technical field discloses printer paper feeding transmission control mechanism, including the support component for fixed support, the inside of one side of support component is provided with the drive component for drive transmission control component no.

Description

Technical Field

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

[0002] As a commonly used device in modern offices and daily life, printers are used to print information from computers into paper in the form of text, graphics and other formats. With the improvement of office automation and the increase in home printing needs, printers are being used more and more widely. This requires their paper feed drive control mechanism to work more stably and efficiently in order to ensure the smooth progress of printing tasks.

[0003] Chinese patent CN116901595B discloses an automatic paper feed printer, including a printing body. The printing body is provided with a paper feeding channel, a slide, and a drive mechanism. A paper feeding roller is provided at the front end of the paper feeding channel, and a print head and a printing roller are provided at the rear end of the paper feeding channel. The print head and the printing roller are arranged opposite to each other. A slidable drive gear is provided in the slide. The drive end of the drive mechanism meshes with the drive gear. A first gear set is provided at one end of the slide, and a second gear set is provided at the other end of the slide. The first gear set is driven by the paper feeding roller through a one-way bearing, and the second gear set is driven by the printing roller. This invention is applied to the technical field of printers.

[0004] However, the following shortcomings still exist:

[0005] Existing printers have the following problems when controlling paper feeding: unstable torque transmission during the transmission process, which can easily lead to paper skew; the feeding direction may reverse due to equipment inertia or external forces, which reduces the safety and stability of operation; and the inability to lock the control components in time to stop their rotation, which can easily cause unexpected paper feeding due to inertia or misoperation. Therefore, those skilled in the art provide a printer paper feeding transmission control mechanism to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a printer paper feed transmission control mechanism to solve the problems mentioned in the background art above.

[0007] This utility model provides the following technical solution: a printer paper feed transmission control mechanism, including a support component for support and fixation, a drive component for driving a transmission control component one is provided inside one side of the support component, a transmission control component one for driving a driven component to rotate is provided on one side of the drive component, the drive component and the driven component are coaxially arranged, and a transmission control component two for controlling the rotation of the transmission control component one is assembled inside the other side of the support component.

[0008] As a preferred embodiment of the above technical solution, the support assembly includes a first fixed bracket, a base plate is fixedly installed at the lower end of the first fixed bracket, a second fixed bracket is fixedly installed at the front of the base plate, and corner plates are fixedly connected to the inner sides of the upper ends of the first fixed bracket and the second fixed bracket.

[0009] As a preferred embodiment of the above technical solution, the drive assembly includes a drive wheel, which is rotatably connected to the rear edge of the fixed bracket two. A gear is rotatably connected to the rear of the drive wheel, and a drive shaft is rotatably connected to the inner walls of both the drive wheel and the gear.

[0010] As a preferred embodiment of the above technical solution, the transmission control component includes a limiting ring, which is fixedly connected to the rear of the gear. A friction wheel is fixedly connected to the rear of the limiting ring. A torsion spring is sleeved on the outer wall of the friction wheel. A ratchet is sleeved on the outside of the torsion spring. A radial protruding ring is provided on one side of the ratchet. A notch is formed on the radial protruding ring. A radially extending limiting handle is provided at one end of the torsion spring. The free end of the limiting handle passes through the notch, so that the torsion spring and the ratchet rotate synchronously.

[0011] As a preferred embodiment of the above technical solution, the driven component includes a driven shaft, which is rotatably connected to a fixed bracket, and a driven wheel is connected to the driven shaft. The other end of the torsion spring is sleeved on the driven wheel. A mounting plate is fixedly connected to a groove on one side of the driven wheel near the rear edge of the fixed bracket, and a connecting ring is connected inside the mounting plate.

[0012] As a preferred embodiment of the above technical solution, the transmission control component two includes a mounting box, which is fixedly installed on the other side of the interior of the fixed bracket one. An electromagnet is provided on the inner wall of the mounting box, and a terminal block is provided on the front of the electromagnet. A telescopic rod is movably connected to the inner wall of the electromagnet, and a connecting plate is connected to the lower end of the telescopic rod near the bottom surface of the electromagnet. A swing plate is movably installed in the middle of the connecting plate, and a hook is fixedly connected to the front end of the swing plate. The hook and the ratchet teeth are aligned. The hook and the swing plate are an integral structure. A return spring is fixedly connected to the upper side of the center of the swing plate, and the swing plate is connected to the corner plate through the return spring.

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

[0014] 1. In this utility model, one end of the torsion spring is fixed to the drive shaft. When it is tightened as the friction wheel rotates, its limiting handle swings in the notch and drives the ratchet to rotate. Each coil is squeezed into a rigid whole. The driven wheel is driven to rotate through the driven shaft fixed at the other end. The elastic deformation ensures stable power transmission. Conversely, when the drive end rotates clockwise, the left-hand torsion spring is relaxed, and each coil separates and cannot transmit force, thus avoiding reverse rotation and ensuring safety.

[0015] 2. The telescopic rod of this utility model is controlled by an electromagnet. When energized, it retracts upward and when de-energized, it extends downward. When paper feeding is not required, the electromagnet is de-energized, the telescopic rod moves downward, and drives the swing plate and hook to engage the ratchet, locking the transmission and driven components to prevent accidental paper feeding. When paper feeding is required, the electromagnet is energized, the telescopic rod moves upward, the hook disengages from the ratchet to unlock, ensuring power transmission to achieve paper feeding. Attached Figure Description

[0016] Figure 1 A right-side three-dimensional structural diagram of the printer's paper feed drive control mechanism;

[0017] Figure 2 A left-side three-dimensional view of the overall structure of the printer's paper feed drive control mechanism;

[0018] Figure 3 A rear-view 3D structural diagram of the printer's paper feed drive control mechanism;

[0019] Figure 4 A schematic diagram of the overall disassembled structure of the drive assembly and the paper feed drive assembly;

[0020] Figure 5 A semi-sectional view of the printer's paper feed drive control mechanism;

[0021] Figure 6 A cross-sectional view of the printer's paper feed drive control mechanism;

[0022] Figure 7 A schematic diagram of the connection structure between the gear and the limiting ring;

[0023] Figure 8 This is a schematic diagram of the structure of transmission control component one;

[0024] Figure 9 This is a schematic diagram of the driven component.

[0025] Figure 10 This is a schematic diagram of the transmission control component two.

[0026] Legend:

[0027] 1. Support Components; 101. Fixed Bracket One; 102. Base Plate; 103. Fixed Bracket Two; 104. Angle Plate; 2. Drive Components; 201. Drive Wheel; 202. Gear; 203. Drive Shaft; 3. Transmission Control Component One; 301. Limit Ring; 302. Friction Wheel; 303. Torsion Spring; 304. Radial Protruding Ring; 305. Limit Handle; 306. Ratchet; 4. Driven Components; 401. Driven Shaft; 402. Driven Wheel; 403. Mounting Plate; 404. Connecting Ring; 5. Transmission Control Component Two; 501. Mounting Box; 502. Electromagnet; 503. Terminal Block; 504. Telescopic Rod; 505. Connecting Plate; 506. Swing Plate; 507. Hook; 508. Return Spring. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-10 As shown, this utility model provides a technical solution: a printer paper feed transmission control mechanism, including a support component 1 for support and fixation, a drive component 2 for driving a transmission control component 3 is provided inside one side of the support component 1, a transmission control component 3 for driving a driven component 4 to rotate is provided on one side of the drive component 2, the drive component 2 and the driven component 4 are coaxially arranged, and a second drive transmission control component 5 for controlling the rotation of the drive transmission control component 3 is assembled inside the other side of the support component 1.

[0030] As one implementation method in this embodiment, please refer to Figures 6-9As shown, the drive assembly 2 includes a drive wheel 201, which is rotatably connected to the rear edge of the fixed bracket 103. A gear 202 is rotatably connected to the rear of the drive wheel 201. Both the inner walls of the drive wheel 201 and the gear 202 are rotatably connected to a drive shaft 203. The transmission control assembly 3 includes a limiting ring 301, which is fixedly connected to the rear of the gear 202. A friction wheel 302 is fixedly connected to the rear of the limiting ring 301. A torsion spring 303 is sleeved on the outer wall of the friction wheel 302. One end of the torsion spring 303 is sleeved on the drive shaft 203. A radial protruding ring 304 is provided on one side of the torsion spring 303. A notch is provided on the radial convex ring 304. One end of the torsion spring 303 is provided with a radially extending limiting handle 305. The free end of the limiting handle 305 passes through the notch. A ratchet 306 is sleeved on the outside of the torsion spring 303. The torsion spring 303 is connected to the ratchet 306 and rotates synchronously. The driven assembly 4 includes a driven shaft 401. The driven shaft 401 is rotatably connected to the other end of the torsion spring 303. A driven wheel 402 is sleeved on the outside of the driven shaft 401. A mounting plate 403 is fixedly connected to one side of the driven wheel 402 near the rear edge groove of the fixed bracket 101. A connecting ring 404 is connected inside the mounting plate 403.

[0031] Furthermore, when the external drive gear 202 rotates, it synchronously drives the drive shaft 203 and drive wheel 201 to rotate. At this time, the rotation of the drive shaft 203 directly drives the friction wheel 302 to rotate. The rotation of the friction wheel 302 causes the torsion spring 303 to twist. Since one end of the torsion spring 303 is fixed to the drive shaft 203, it gradually tightens during its rotation outside the friction wheel 302. The limiting handle 305 connected to one end of the torsion spring 303 swings within the notch of the radial convex ring 304 as the torsion spring 303 rotates, thereby driving the ratchet 306 to rotate synchronously. As the torsion spring 303 continues to rotate, its tightening degree continuously increases, and the coils squeeze each other and gradually form a rigid whole. Since the other end of the torsion spring 303 is fixed to the driven shaft 401, this rigidity... The optimized structure effectively transmits torque to the driven shaft 401, ultimately driving the driven shaft 401 and driven wheel 402 to rotate, achieving stable power output. During this process, the elastic deformation of the torsion spring 303 stores energy and ensures the continuity and smoothness of power transmission. Conversely, when the driving end bushing rotates clockwise, the left-hand torsion spring 303 will be in a relaxed state. Since the helix angle of the torsion spring 303 is opposite to the direction of rotation, its coils will not only not squeeze each other, but will gradually separate, and the gap will widen. At this time, the torsion spring 303 cannot form a rigid whole, the torque transmission path is interrupted, and the rotation of the driving end bushing cannot drive the driven end bushing, thereby avoiding the reversal of the conveying direction caused by equipment inertia or external force, ensuring the safety and stability of equipment operation.

[0032] As one implementation method in this embodiment, please refer to Figures 6-10As shown, the transmission control component 2 5 includes a mounting box 501, which is fixedly installed on the other side of the inside of the fixed bracket 1 101. An electromagnet 502 is provided on the inner wall of the mounting box 501. A terminal block 503 is provided on the front of the electromagnet 502. A telescopic rod 504 is movably connected to the inner wall of the electromagnet 502. A connecting plate 505 is connected to the lower end of the telescopic rod 504 near the bottom surface of the electromagnet 502. A swing plate 506 is movably installed in the middle of the connecting plate 505. A hook 507 is fixedly connected to the front end of the swing plate 506. The hook 507 and the toothed position of the ratchet 306 correspond to each other. The hook 507 and the swing plate 506 are integrated. A return spring 508 is fixedly connected to the upper side of the center of the swing plate 506. The swing plate 506 is connected to the corner plate 104 through the return spring 508.

[0033] Furthermore, the telescopic rod 504 is movably inserted through the inner wall of the electromagnet 502. Its movement is controlled by the magnetic force of the electromagnet 502. When energized, it is attracted and retracts upward; when de-energized, it extends downward. When paper feeding is not required, the electromagnet 502 is de-energized, and the telescopic rod 504 moves downward, causing the swing plate 506 and the integrated hook 507 to move downward simultaneously. This allows the hook 507 to precisely engage with the teeth of the ratchet 306, thereby locking the transmission control component 3 and the driven component 4, preventing accidental paper feeding due to inertia or misoperation. When paper feeding is required, the electromagnet 502 is energized, driving the telescopic rod 504. 4. Moving upwards simultaneously drives the swing plate 506 and hook 507 upwards. Hook 507 disengages from the teeth of ratchet 306, releasing the lock and allowing ratchet 306 to rotate with drive assembly 2, ensuring normal power transmission to driven assembly 4 and achieving stable paper feeding. One end of the return spring 508 is fixed to the upper end of the swing plate 506, and the other end is connected to the corner plate 104, so that it always maintains a slightly stretched state, providing stable return force for the swing plate 506, ensuring that when electromagnet 502 is not energized, the swing plate 506 can drive hook 507 to reliably engage ratchet 306 and maintain the locked state.

[0034] Working principle: The device is stabilized by the fixed bracket 101, base plate 102, fixed bracket 103, and corner plate 104 within the support assembly 1. When the external drive gear 202 rotates, it synchronously drives the drive shaft 203 and drive wheel 201 to rotate. At this time, the rotation of the drive shaft 203 directly drives the friction wheel 302 to rotate. The rotation of the friction wheel 302 causes the torsion spring 303 to twist. One end of the torsion spring 303 is fixed to the drive shaft 203. When the friction wheel 302 rotates and tightens, its limiting handle 305 swings within the notch and drives the ratchet 306 to rotate. The device is pressed into a rigid whole, and driven by the driven shaft 401 fixed at the other end, it drives the driven wheel 402 to rotate. The elastic deformation ensures stable power transmission. Conversely, the clockwise rotation of the active end relaxes the left-hand torsion spring 303, and the coils separate and cannot transmit force, thus avoiding reverse rotation and ensuring safety. The telescopic rod 504 is controlled by the electromagnet 502. When energized, it retracts upward and when de-energized, it extends downward. When de-energized, the telescopic rod 504 moves downward and the hook 507 hooks onto the ratchet 306 to lock and prevent accidental paper feeding. When energized, the telescopic rod 504 moves upward and the hook 507 disengages and unlocks, allowing paper feeding. The return spring 508 ensures that the hook 507 is reliably engaged when the power is off.

[0035] 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 printer paper feed drive control mechanism, comprising a support assembly (1) for supporting and fixing, characterized in that: The support assembly (1) has a drive assembly (2) for driving the transmission control assembly one (3) on one side, and a transmission control assembly one (3) for driving the driven assembly (4) to rotate on one side. The drive assembly (2) and the driven assembly (4) are coaxially arranged. The support assembly (1) has a transmission control assembly two (5) for controlling the rotation of the transmission control assembly one (3) on the other side inside.

2. The printer paper feed drive control mechanism according to claim 1, characterized in that: The support assembly (1) includes a fixed bracket one (101), a base plate (102) is fixedly installed at the lower end of the fixed bracket one (101), a fixed bracket two (103) is fixedly installed at the front of the base plate (102), and an angle plate (104) is fixedly connected to the inner side of the upper end of the fixed bracket one (101) and the fixed bracket two (103).

3. The printer paper feed drive control mechanism according to claim 2, characterized in that: The drive assembly (2) includes a drive wheel (201), which is rotatably connected to the rear edge of the fixed bracket (103). A gear (202) is rotatably connected to the rear of the drive wheel (201), and a drive shaft (203) is rotatably connected to the inner wall of the drive wheel (201).

4. The printer paper feed transmission control mechanism according to claim 3, characterized in that: The transmission control component (3) includes a limiting ring (301), which is fixedly connected to the rear of the gear (202). A friction wheel (302) is fixedly connected to the rear of the limiting ring (301). A torsion spring (303) is sleeved on the outer wall of the friction wheel (302). A ratchet (306) is sleeved on the outside of the torsion spring (303). A radial protruding ring (304) is provided on one side of the ratchet (306). A notch is opened on the radial protruding ring (304). A radially extending limiting handle (305) is provided at one end of the torsion spring (303). The free end of the limiting handle (305) passes through the notch, so that the torsion spring (303) and the ratchet (306) rotate synchronously.

5. The printer paper feed drive control mechanism according to claim 4, characterized in that: The driven assembly (4) includes a driven shaft (401), which is rotatably connected to a fixed bracket (101). A driven wheel (402) is connected to the driven shaft (401), and the other end of the torsion spring (303) is sleeved on the driven wheel (402). A mounting plate (403) is fixedly connected to one side of the driven wheel (402) in a groove near the rear edge of the fixed bracket (101), and a connecting ring (404) is connected inside the mounting plate (403).

6. The printer paper feed drive control mechanism according to claim 2, characterized in that: The transmission control component two (5) includes a mounting box (501), which is fixedly installed on the other side of the inside of the fixed bracket one (101). An electromagnet (502) is provided on the inner wall of the mounting box (501), and a terminal block (503) is provided on the front of the electromagnet (502). A telescopic rod (504) is movably connected to the inner wall of the electromagnet (502), and a connecting plate (504) is connected to the lower end of the telescopic rod (504) near the bottom surface of the electromagnet (502). 5) A swing plate (506) is movably installed in the middle of the connecting plate (505). A hook (507) is fixedly connected to the front end of the swing plate (506). The hook (507) and the ratchet (306) are in the same position. The hook (507) and the swing plate (506) are in an integral structure. A return spring (508) is fixedly connected to the upper end of one side of the center of the swing plate (506). The swing plate (506) is connected to the corner plate (104) through the return spring (508).

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