Automatic paper feeding mechanism for copying machine

Abstract

The invention discloses an automatic paper feeding mechanism for a duplicator, relates to the technical field of office automation, and aims to solve the technical problem that an existing duplicator is insufficient in adaptability to paper with uneven surfaces, the automatic paper feeding mechanism comprises a duplicator body, a paper feeding position is arranged on the duplicator body, and a supporting frame body is arranged on the back face of the duplicator body; a bearing and transferring assembly is arranged at the top end of a supporting frame body and located on one side of a paper feeding position, a shell assembly is arranged at the top end of the bearing and transferring assembly, a smoothing assembly is hoisted in the shell assembly, and a paper feeding assembly is arranged at the end, away from a copying machine body, of the bearing and transferring assembly. The paper in the paper box is sent out one by one, the roll shaft unit rolls the middle of the lower paper in the rolling process of the return stroke, so that the paper is flat, the copying quality and efficiency are improved, the user experience is enhanced, and the service life of the copying machine is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of office automation, and more particularly to an automatic paper feeding mechanism for a copier. Background Art

[0002] Among office automation equipment, photocopiers are important information copying tools and are widely used in various office places and industrial environments. Among them, the automatic paper feed mechanism is one of the core components of the photocopier, and its performance directly affects the printing efficiency and quality of the photocopier. However, the existing photocopier paper feed mechanism has obvious limitations when dealing with some special situations, such as paper that has been printed for a long time or paper with obvious signs of use.

[0003] Specifically, these papers tend to become uneven on the surface during long-term use and storage. These uneven paper surfaces can easily cause problems such as deviation and paper jams during paper delivery when passing through the paper feeding mechanism of the copier, thus affecting the normal operation of the copier. In addition, uneven paper can also cause quality problems such as blurred images and incomplete printing during the copying process, seriously reducing the printing effect and user experience of the copier.

[0004] The reason is that the existing paper feeding mechanism of the copier is often designed to focus on the fast and accurate feeding of paper, but lacks sufficient adaptability to the flatness and texture changes of the paper surface. When encountering paper with uneven surface, the paper positioning part and feeding part in the paper feeding mechanism often cannot effectively align and feed the paper, resulting in paper jams, reduced print quality and other problems. In view of this, we propose an automatic paper feeding mechanism for a copier. Summary of the invention

[0005] The object of the present invention is to provide an automatic paper feeding mechanism for a copier, so as to solve the technical problem that the existing copier has insufficient adaptability to papers with uneven surfaces.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic paper feeding mechanism for a copier, comprising a copier body, a paper feeding place is arranged at the top of the copier body, a support frame is arranged at the back of the copier body, a carrying and transmitting assembly is arranged on the support frame, a paper feeding assembly is arranged at one end of the carrying and transmitting assembly away from the copier body, a shell assembly is arranged at the top of the carrying and transmitting assembly, and a smoothing assembly is symmetrically suspended inside the shell assembly;

[0007] The paper feeding assembly comprises a paper box, a pushing unit, an elastic unit and a roller unit, wherein the paper box is arranged at one end of the carrying and transmitting assembly away from the copier body, the pushing unit is arranged on the paper box, the elastic unit is arranged at the output end of the pushing unit, the roller unit is connected to one end of the elastic unit away from the pushing unit, and the roller unit is located inside the paper box;

[0008] The roller unit has a push-lock state and a pull-back rolling state.

[0009] Preferably, a baffle is provided at one end of the paper box away from the load-bearing transfer component, and a transfer port is provided at one end of the paper box close to the load-bearing transfer component, and the transfer port and the load-bearing transfer component are located at the same horizontal height.

[0010] Preferably, the pushing unit includes a bearing seat, a cylinder, a push shaft and a fixed block, the bearing seat is arranged on one side of the top of the paper box, the cylinder is arranged at one end of the bearing seat close to the transfer port, one end of the push shaft is movably inserted on the bearing seat, the other end of the push shaft is connected to the output end of the cylinder, the fixed block is fixedly connected to the end of the push shaft away from the cylinder, and the elastic unit is connected to the fixed block.

[0011] Preferably, the elastic unit includes a fixed rod, a torsion spring, a rotating sleeve and a connecting rod, the fixed rod is connected to the fixed block, the rotating sleeve is rotatably sleeved on the end of the fixed rod away from the fixed block, one end of the torsion spring is fixedly connected to the fixed rod, the other end of the torsion spring is inserted into the rotating sleeve, the connecting rod is connected to one end of the torsion spring extending out of the rotating sleeve, and the roller unit is connected to the end of the connecting rod away from the rotating sleeve.

[0012] Preferably, the roller unit includes a main shaft body, an inserted shaft, a sleeve shaft, an extrusion groove, a roller and a roller. The main shaft body is connected to the end of the connecting rod away from the rotating sleeve, the inserted shaft is rotatably connected to the end of the main shaft body, the sleeve shaft is sleeved on the outer wall of the inserted shaft, the extrusion groove is annularly opened on the outer wall of the sleeve shaft at equal intervals, the roller is movably arranged on the extrusion groove, the roller is sleeved on the outer wall of the sleeve shaft, the extrusion groove is curved, the length of one end of the extrusion groove is less than the diameter of the roller, and the length of the other end of the extrusion groove is greater than the diameter of the roller.

[0013] Preferably, the load-bearing and transmission assembly includes a mounting frame, a load-bearing plate, a load-bearing frame, a driving shaft, a conveying belt, a transmission belt and a reduction motor. The mounting frame is symmetrically arranged on the support frame, the load-bearing plate is arranged between two of the mounting frames, the load-bearing frame is symmetrically arranged at the ends of the load-bearing plate, the driving shaft is rotatably arranged on the load-bearing frame, the conveying belt is sleeved on the driving shaft, the reduction motor is arranged at the bottom end of the load-bearing frame, one end of the transmission belt is sleeved on the driving shaft, and the other end of the transmission belt is sleeved on the output end of the reduction motor.

[0014] Preferably, the shell component includes a shell, a smoothing cavity and a rectangular slide groove, the shell is arranged at the top of the load-bearing and transfer component, the smoothing cavity is opened inside the shell, the rectangular slide groove is symmetrically opened on the inner wall of the shell, and one end of the smoothing component is movably inserted in the rectangular slide groove.

[0015] Preferably, the smoothing assembly includes a hanger, a hanger rod, a motor, a rotating unit, a sliding unit and a smoothing scraper. The hanger is suspended on the inner top wall of the shell assembly, one end of the hanger rod is arranged on the hanger, and the other end of the hanger rod is connected to the inner top wall of the shell assembly, the rotating unit is rotatably arranged on the hanger, the motor is arranged at one end of the hanger away from the rotating unit, the sliding unit is slidably mounted on the hanger rod, one end of the smoothing scraper is fixedly connected to the rotating unit, the middle end of the smoothing scraper is slidably inserted on the sliding unit, and the other end of the smoothing scraper is slidably inserted on the rectangular slide groove.

[0016] Preferably, the rotating unit includes a gear, a chain and a chain rod, the gear is rotatably arranged on the hanger in a rectangular shape, the chain is meshingly sleeved on a number of the gears, one end of the chain rod is fixedly connected to the chain, and the other end of the chain rod is rotatably inserted on the smoothing scraper, and one of the gears is connected to the motor output end.

[0017] Preferably, the sliding unit includes a sliding sleeve, a slide plate and a sliding groove, the sliding sleeve is slidably mounted on the suspension rod, the slide plate is connected between two of the sliding sleeves, the sliding groove is opened on the slide plate, and the middle end of the smoothing scraper is slidably inserted in the sliding groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention arranges a paper feed on the copier body, arranges a support frame on the back of the copier body, arranges a load-bearing and transferring assembly on the top of the support frame and located on one side of the paper feed, arranges a shell assembly on the top of the load-bearing and transferring assembly, hoists a smoothing assembly inside the shell assembly, arranges a paper feeding assembly at one end of the load-bearing and transferring assembly away from the copier body, drives the elastic unit and the roller unit to move through the pushing unit of the paper feeding assembly, so that the papers in the paper box are sent out one by one, and the roller unit rolls the middle part of the paper below during the rolling process of the return stroke, so that the paper is flat, which not only improves the copying quality and efficiency, but also enhances the user experience and prolongs the service life of the copier.

[0020] 2. In the present invention, the push shaft is driven by the driving cylinder to move on the bearing seat, the push shaft drives the fixed block to move, the fixed block drives the fixed rod to move, the fixed rod drives the torsion spring, the rotating sleeve and the connecting rod to move synchronously, one end of the torsion spring is fixedly connected to the fixed rod, and the other end of the torsion spring passes through the rotating sleeve and is connected to the connecting rod. Figure 7 As shown, the torsional force of the torsion spring causes the connecting rod to drive the roller unit to press onto the stacked paper. The strength of the torsion pressure depends on the torsion force of the torsion spring. The torsion spring can be adjusted according to the thickness of the paper. This design can adapt to paper of different thicknesses and materials, ensuring that all kinds of paper can be transported during the copying process.

[0021] 3. In the present invention, the push shaft is pushed by the driving cylinder to move and intersperse on the bearing seat, the push shaft drives the fixed block to move, the fixed block drives the fixed rod to move, the fixed rod drives the torsion spring, the rotating sleeve and the connecting rod to move synchronously, one end of the torsion spring is fixedly connected to the fixed rod, and the other end of the torsion spring passes through the rotating sleeve and is connected to the connecting rod. The torsional force of the torsion spring causes the connecting rod to drive the main shaft body to press down. When the cylinder returns, the fixed rod moves toward the transfer port. Since the plug shaft rotates and connects to the main shaft body, the plug shaft drives the sleeve shaft to rotate. Since the length of one end of the extrusion groove is smaller than the diameter of the roller, the roller is locked. Therefore, the sleeve shaft cannot roll in this direction. The locking mechanism of the rollers increases the friction force when the cylinder strokes, and the fixed rods move toward the baffle plate, and the fixed rods move toward the delivery port. As the plug-in shaft rotates to connect the main shaft body, the plug-in shaft drives the sleeve shaft to rotate. As the length of the other end of the extrusion groove is greater than the diameter of the roller, the roller does not squeeze the sleeve shaft and the roller, so that the roller can rotate. The roller rotates to roll the paper below, so that the middle part of the paper below is flat. Rolling and flattening the paper can effectively reduce the occurrence of paper jams and improve the stability and reliability of the copier.

[0022] 4. In the present invention, a motor drives one of the gears to rotate, and the gears rotate and mesh to pull the chain to draw a rectangular movement outside the four gears, such as Figures 12 to 14As shown, the chain drives the chain rod fixedly connected to it to move in a rectangular shape, and the chain rod drives the smoothing scraper to move in a rectangular shape. Since the middle part of the smoothing scraper is movably inserted in the slide groove of the slide plate, the slide plate is synchronously driven to move at this time. The slide plate drives the sliding sleeve to slide on the suspension rod, and the smoothing scraper slides away from the end of the chain rod and is inserted in the rectangular slide groove to slide, so that the smoothing scraper moves in a rectangular shape. When the smoothing scraper moves to the bottom end, it is pulled apart to both sides, so that the paper is scraped flat from the middle to the outside, impurities and foreign matter on the paper are cleaned, the mottled paper is scraped flat, and the folded corners of the four corners are smoothed, which further makes the paper flat, making the copying process more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure of the other side of the present invention;

[0025] Figure 3 It is a cross-sectional view of the load-carrying and transferring assembly, the paper feeding assembly, the housing assembly and the schematic structural diagram of the smoothing assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the load-carrying and transferring assembly and the paper feeding assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the load-carrying transfer assembly of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the paper feeding assembly of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the elastic unit and the roller unit of the present invention;

[0030] Figure 8 It is a schematic diagram of the disassembled structure of the roller unit of the present invention;

[0031] Fig. 9 It is a schematic diagram of the side structure of the roller unit of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the load-carrying and transferring assembly, the paper feeding assembly, the housing assembly and the smoothing assembly of the present invention from another perspective;

[0033] Fig.11 It is a schematic diagram of the bottom surface structure of the housing component and the smoothing component of the present invention;

[0034] Fig.12 It is a schematic diagram of the structure of the housing component disassembly and the smoothing component of the present invention;

[0035] Fig.13 It is a structural schematic diagram of one side of the smoothing component of the present invention;

[0036] Fig.14 It is a schematic diagram of the structure of the other side of the smoothing component of the present invention;

[0037] Fig.15 For the present invention Fig.14 A magnified view of the structure in Figure 2.

[0038] Description of the numbers in the figure:

[0039] 1. Copier body; 2. Paper feed; 3. Support frame; 4. Load-carrying and transmission assembly; 5. Paper feeding assembly; 6. Shell assembly; 7. Smoothing assembly;

[0040] 401, mounting frame; 402, bearing plate; 403, bearing frame; 404, driving shaft; 405, conveying belt; 406, transmission belt; 407, reduction motor;

[0041] 501, paper box; 502, pushing unit; 503, elastic unit; 504, roller unit;

[0042] 601, housing; 602, smoothing cavity; 603, rectangular slide;

[0043] 701, hanger; 702, hanger rod; 703, motor; 704, rotating unit; 705, sliding unit; 706, smoothing scraper;

[0044] 5011, baffle; 5012, transfer port;

[0045] 5021, bearing seat; 5022, cylinder; 5023, push shaft; 5024, fixing block;

[0046] 5031, fixed rod; 5032, torsion spring; 5033, rotating sleeve; 5034, connecting rod;

[0047] 5041, main shaft body; 5042, plug shaft; 5043, sleeve shaft; 5044, extrusion groove; 5045, roller; 5046, roller;

[0048] 7041, gear; 7042, chain; 7043, chain rod;

[0049] 7051, sliding sleeve; 7052, sliding plate; 7053, sliding groove. DETAILED DESCRIPTION

[0050] like Figures 1 to 15As shown, the present invention relates to an automatic paper feeding mechanism for a copier, comprising a copier body 1, a paper feeding place 2 is arranged at the top of the copier body 1, a supporting frame 3 is arranged at the back of the copier body 1, a load-carrying and transferring component 4 is arranged on the supporting frame 3, a paper feeding component 5 is arranged at the end of the load-carrying and transferring component 4 away from the copier body 1, a shell component 6 is arranged at the top of the load-carrying and transferring component 4, and a smoothing component 7 is symmetrically suspended inside the shell component 6; the paper feeding component 5 comprises a paper box 501, a pushing unit 502, an elastic unit 503 and a roller unit 504, the paper box 501 is arranged at the end of the load-carrying and transferring component 4 away from the copier body 1, the pushing unit 502 is arranged on the paper box 501, the elastic unit 503 is arranged at the output end of the pushing unit 502, the roller unit 504 is connected to the end of the elastic unit 503 away from the pushing unit 502, and the roller unit 504 is located inside the paper box 501; the roller unit 504 has a pushing locking state and a pulling back rolling state.

[0051] The present invention provides a paper feed 2 on a copier body 1, a support frame 3 on the back of the copier body 1, a load-bearing and transferring component 4 at the top of the support frame 3 and on one side of the paper feed 2, a shell component 6 is provided at the top of the load-bearing and transferring component 4, a smoothing component 7 is hoisted inside the shell component 6, and a paper feeding component 5 is provided at the end of the load-bearing and transferring component 4 away from the copier body 1. The pushing unit 502 of the paper feeding component 5 drives the elastic unit 503 and the roller unit 504 to move, so that the papers in the paper box 501 are fed out one by one, and the roller unit 504 rolls the middle part of the paper below during the rolling process of the return journey, so that the paper is flat, which not only improves the copying quality and efficiency, but also enhances the user experience and prolongs the service life of the copier.

[0052] In the embodiment of the present invention, a baffle 5011 is provided at one end of the paper box 501 away from the carrying and transferring assembly 4 , and a transfer opening 5012 is provided at one end of the paper box 501 close to the carrying and transferring assembly 4 . The transfer opening 5012 and the carrying and transferring assembly 4 are at the same level.

[0053] In the present invention, by stacking the papers in the paper box 501 and adjusting the torsional strength of the elastic unit 503, a piece of paper is pushed out when the pushing unit 502 drives the elastic unit 503 and the roller unit 504, and the paper is transmitted to the carrying and transmitting component 4 through the transfer port 5012. When the roller unit 504 rolls back, the baffle 5011 blocks the remaining paper to prevent it from falling.

[0054] In an embodiment of the present invention, the pushing unit 502 includes a supporting seat 5021, a cylinder 5022, a pushing shaft 5023 and a fixed block 5024. The supporting seat 5021 is arranged on one side of the top of the paper box 501, the cylinder 5022 is arranged at one end of the supporting seat 5021 close to the transfer port 5012, one end of the pushing shaft 5023 is movably inserted on the supporting seat 5021, and the other end of the pushing shaft 5023 is connected to the output end of the cylinder 5022. The fixed block 5024 is fixedly connected to the end of the pushing shaft 5023 away from the cylinder 5022, and the elastic unit 503 is connected to the fixed block 5024.

[0055] In the present invention, the cylinder 5022 is driven to push the push shaft 5023 to move on the bearing seat 5021, the push shaft 5023 drives the fixed block 5024 to move, and the fixed block 5024 drives the elastic unit 503 and the roller unit 504 to move to realize the delivery of paper.

[0056] As another embodiment of the present invention, the elastic unit 503 includes a fixed rod 5031, a torsion spring 5032, a rotating sleeve 5033 and a connecting rod 5034. The fixed rod 5031 is connected to the fixed block 5024. The rotating sleeve 5033 is rotatably sleeved on the end of the fixed rod 5031 away from the fixed block 5024. One end of the torsion spring 5032 is fixedly connected to the fixed rod 5031, and the other end of the torsion spring 5032 is inserted into the rotating sleeve 5033. The connecting rod 5034 is connected to one end of the torsion spring 5032 extending from the rotating sleeve 5033, and the roller unit 504 is connected to the end of the connecting rod 5034 away from the rotating sleeve 5033.

[0057] In the present invention, the push shaft 5023 is pushed by the driving cylinder 5022 to move on the bearing seat 5021, the push shaft 5023 drives the fixed block 5024 to move, the fixed block 5024 drives the fixed rod 5031 to move, the fixed rod 5031 drives the torsion spring 5032, the rotating sleeve 5033 and the connecting rod 5034 to move synchronously, one end of the torsion spring 5032 is fixedly connected to the fixed rod 5031, and the other end of the torsion spring 5032 passes through the rotating sleeve 5033 and is connected to the connecting rod 5034. Figure 7 As shown, the torsional force of the torsion spring 5032 causes the connecting rod 5034 to drive the roller unit 504 to press onto the stacked paper. The strength of the torsional pressure depends on the torsion force of the torsion spring 5032. The torsion force of the torsion spring 5032 can be adjusted according to the thickness of the paper. This design can adapt to paper of different thicknesses and materials, ensuring that all kinds of paper can be transported during the copying process.

[0058] In an embodiment of the present invention, the roller unit 504 includes a main shaft body 5041, an inserted shaft 5042, a sleeve shaft 5043, an extrusion groove 5044, a roller 5045 and a roller 5046. The main shaft body 5041 is connected to the end of the connecting rod 5034 away from the rotating sleeve 5033, the inserted shaft 5042 is rotatably connected to the end of the main shaft body 5041, the sleeve shaft 5043 is sleeved on the outer wall of the inserted shaft 5042, the extrusion groove 5044 is annularly arranged on the outer wall of the sleeve shaft 5043 at equal intervals, the roller 5045 is movably arranged on the extrusion groove 5044, the roller 5046 is sleeved on the outer wall of the sleeve shaft 5043, the extrusion groove 5044 is curved, the length of one end of the extrusion groove 5044 is less than the diameter of the roller 5045, and the length of the other end of the extrusion groove 5044 is greater than the diameter of the roller 5045. In the present invention, the push shaft 5023 is pushed to move and intersperse on the bearing seat 5021 by driving the air cylinder 5022, the push shaft 5023 drives the fixed block 5024 to move, the fixed block 5024 drives the fixed rod 5031 to move, the fixed rod 5031 drives the torsion spring 5032, the rotating sleeve 5033 and the connecting rod 5034 to move synchronously, one end of the torsion spring 5032 is fixedly connected to the fixed rod 5031, and the other end of the torsion spring 5032 passes through the rotating sleeve 5033 and is connected to the connecting rod 5034, and the torsion force of the torsion spring 5032 causes the connecting rod 5034 to drive the main shaft body 5041 is pressed down, and when the cylinder 5022 returns, the fixed rod 5031 moves toward the transfer port 5012. Since the plug shaft 5042 rotates to connect the main shaft body 5041, the plug shaft 5042 drives the sleeve shaft 5043 to rotate. Since the length of one end of the extrusion groove 5044 is less than the diameter of the roller 5045, the roller 5045 is locked. Therefore, the sleeve shaft 5043 cannot roll in this direction, so that the roller 5046 is locked synchronously. Since the roller 5046 contacts the paper, the locking increases the friction force, thereby pushing the topmost paper to move toward the transfer port 5012.

[0059] When the cylinder 5022 strokes, the fixed rod 5031 moves toward the baffle 5011, and the fixed rod 5031 moves toward the transfer port 5012. Since the plug shaft 5042 rotates to connect the main shaft body 5041, the plug shaft 5042 drives the sleeve shaft 5043 to rotate. Since the length of the other end of the extrusion groove 5044 is greater than the diameter of the roller 5045, the roller 5045 does not squeeze the sleeve shaft 5043 and the roller 5046, so that the roller 5046 can rotate. The roller 5046 rotates to roll the paper below, so that the middle part of the paper below is flat. Rolling and flattening the paper can effectively reduce the occurrence of paper jams and improve the stability and reliability of the copier.

[0060] In an embodiment of the present invention, the load-bearing and transferring assembly 4 includes a mounting frame 401, a load-bearing plate 402, a load-bearing frame 403, a driving shaft 404, a conveying belt 405, a transmission belt 406 and a reduction motor 407. The mounting frame 401 is symmetrically arranged on the supporting frame 3, the load-bearing plate 402 is arranged between two mounting frames 401, the load-bearing frame 403 is symmetrically arranged at the end of the load-bearing plate 402, the driving shaft 404 is rotatably arranged on the load-bearing frame 403, the conveying belt 405 is sleeved on the driving shaft 404, the reduction motor 407 is arranged at the bottom end of the load-bearing frame 403, one end of the transmission belt 406 is sleeved on the driving shaft 404, and the other end of the transmission belt 406 is sleeved on the output end of the reduction motor 407.

[0061] In the present invention, the transmission belt 406 is rotated by driving the reduction motor 407, the transmission belt 406 rotates the driving shaft 404, and the driving shaft 404 rotates the conveying belt 405, so that the conveying belt 405 drives the paper conveyed by the paper feeding assembly 5 to be conveyed.

[0062] As another embodiment of the present invention, the housing component 6 includes a housing 601, a smoothing cavity 602 and a rectangular slide 603, the housing 601 is arranged at the top of the carrying and transmitting component 4, the smoothing cavity 602 is opened inside the housing 601, the rectangular slide 603 is symmetrically opened on the inner wall of the housing 601, and one end of the smoothing component 7 is movably inserted in the rectangular slide 603. The rectangular slide 603 in the present invention is opened on the inner wall of the housing 601 near the paper feeding component 5.

[0063] In an embodiment of the present invention, the smoothing component 7 includes a hanger 701, a hanging rod 702, a motor 703, a rotating unit 704, a sliding unit 705 and a smoothing scraper 706. The hanger 701 is suspended on the inner top wall of the outer shell component 6, one end of the hanging rod 702 is arranged on the hanger 701, and the other end of the hanging rod 702 is connected to the inner top wall of the outer shell component 6, the rotating unit 704 is rotatably arranged on the hanger 701, the motor 703 is arranged at one end of the hanger 701 away from the rotating unit 704, the sliding unit 705 is slidably mounted on the hanging rod 702, one end of the smoothing scraper 706 is fixedly connected to the rotating unit 704, the middle end of the smoothing scraper 706 is slidably inserted on the sliding unit 705, and the other end of the smoothing scraper 706 is slidably inserted on the rectangular slide groove 603.

[0064] The rotating unit 704 includes a gear 7041, a chain 7042 and a chain rod 7043. The gear 7041 is rotatably arranged on the hanger 701 in a rectangular shape. The chain 7042 is meshed and sleeved on a plurality of gears 7041. One end of the chain rod 7043 is fixedly connected to the chain 7042, and the other end of the chain rod 7043 is rotatably inserted into the smoothing scraper 706. One of the gears 7041 is connected to the output end of the motor 703.

[0065] The sliding unit 705 includes a sliding sleeve 7051, a slide plate 7052 and a slide groove 7053. The sliding sleeve 7051 is slidably mounted on the suspension rod 702. The slide plate 7052 is connected between the two sliding sleeves 7051. The slide groove 7053 is opened on the slide plate 7052. The middle end of the smoothing scraper 706 is slidably inserted into the slide groove 7053.

[0066] In the present invention, the motor 703 drives one of the gears 7041 to rotate, and the gear 7041 rotates and engages to pull the chain 7042 to draw a rectangular movement outside the four gears 7041, such as Figures 12 to 14 As shown, the chain 7042 drives the chain rod 7043 fixedly connected thereto to draw a rectangular movement, and the chain rod 7043 drives the smoothing scraper 706 to draw a rectangular movement. Since the middle part of the smoothing scraper 706 is movably inserted in the slide groove 7053 of the slide plate 7052, the slide plate 7052 is synchronously driven to move. The slide plate 7052 drives the sliding sleeve 7051 to slide on the suspension rod 702, and the smoothing scraper 706 slides away from the end of the chain rod 7043 and is inserted in the rectangular slide groove 603 to slide, so that the smoothing scraper 706 moves in a rectangular shape. When the smoothing scraper 706 moves to the bottom end, it is pulled apart to both sides, so that the paper is scraped flat from the middle to the outside, impurities and foreign matter on the paper are cleaned, the mottled paper is scraped flat, and the corners of the four corners are smoothed, which further makes the paper flat, making the copying process more efficient.

[0067] Working principle: This embodiment provides a method for using an automatic paper feeding mechanism for a copier, comprising the following steps:

[0068] S1. Paper placement and torque adjustment operation;

[0069] The paper to be copied is stacked and placed in the paper box 501, and the torsion spring 5032 with the corresponding torsion force is selected according to the thickness and material of the paper;

[0070] S2, paper feeding operation;

[0071] The driving cylinder 5022 pushes the push shaft 5023 to move on the bearing seat 5021, and the push shaft 5023 drives the fixed block 5024 to move, and the fixed block 5024 drives the fixed rod 5031 to move, and the fixed rod 5031 drives the torsion spring 5032, the rotating sleeve 5033 and the connecting rod 5034 to move synchronously. One end of the torsion spring 5032 is fixedly connected to the fixed rod 5031, and the other end of the torsion spring 5032 passes through the rotating sleeve 5033 and is connected to the connecting rod 5034. The torsion force of the torsion spring 5032 enables the connecting rod 5034 to drive the main shaft body 504 1 is pressed down. When the air cylinder 5022 returns, the fixed rod 5031 moves toward the delivery port 5012. Since the plug shaft 5042 rotates to connect the main shaft body 5041, the plug shaft 5042 drives the sleeve shaft 5043 to rotate. Since the length of one end of the extrusion groove 5044 is less than the diameter of the roller 5045, the roller 5045 is locked. Therefore, the sleeve shaft 5043 cannot roll in this direction, so that the roller 5046 is locked synchronously. Since the roller 5046 contacts the paper, the locking increases the friction force, thereby pushing the topmost paper to move toward the delivery port 5012.

[0072] S3, rolling operation in the middle of the return journey;

[0073] The driving cylinder 5022 has a stroke, and the fixed rod 5031 moves toward the baffle 5011, and the fixed rod 5031 moves toward the transfer port 5012. As the plug shaft 5042 rotates to connect the main shaft body 5041, the plug shaft 5042 drives the sleeve shaft 5043 to rotate. As the length of the other end of the extrusion groove 5044 is greater than the diameter of the roller 5045, the roller 5045 does not squeeze the sleeve shaft 5043 and the roller 5046, so that the roller 5046 can rotate. The roller 5046 rotates to roll the paper below, so that the middle part of the paper below is flat.

[0074] S4, paper conveying operation;

[0075] The driving reduction motor 407 pulls the transmission belt 406 to rotate, the transmission belt 406 pulls the driving shaft 404 to rotate, and the driving shaft 404 pulls the conveying belt 405 to rotate, so that the conveying belt 405 drives the paper conveyed by the paper feeding assembly 5 to be conveyed;

[0076] S5, paper smoothing operation;

[0077] The driving motor 703 causes one of the gears 7041 to rotate, and the gear 7041 rotates and engages to pull the chain 7042 to draw a rectangular movement outside the four gears 7041, such as Figures 12 to 14As shown, the chain 7042 drives the chain rod 7043 fixedly connected thereto to draw a rectangular movement, and the chain rod 7043 drives the smoothing scraper 706 to draw a rectangular movement. Since the middle part of the smoothing scraper 706 is movably inserted in the slide groove 7053 of the slide plate 7052, the slide plate 7052 is synchronously driven to move at this time, and the slide plate 7052 drives the sliding sleeve 7051 to slide on the suspension rod 702, and the smoothing scraper 706 slides away from the end of the chain rod 7043 and is inserted in the rectangular slide groove 603 to slide, so that the smoothing scraper 706 moves in a rectangular shape. When the smoothing scraper 706 moves to the bottom end, it is pulled apart to both sides, so that the paper is scraped flat from the middle to the outside, impurities and foreign matter on the paper are cleaned, the mottled paper is scraped flat, and the folded corners of the four corners are smoothed, and the smoothed paper is transported to the paper input 2 through the carrying and transmission component 4 again.

[0078] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic paper feeding mechanism for a copier, characterized in that: The invention comprises a copier body (1), wherein a paper feeding place (2) is arranged at the top of the copier body (1), a supporting frame (3) is arranged at the back of the copier body (1), a carrying and transmitting assembly (4) is arranged on the supporting frame (3), a paper feeding assembly (5) is arranged at one end of the carrying and transmitting assembly (4) away from the copier body (1), a shell assembly (6) is arranged at the top of the carrying and transmitting assembly (4), and a smoothing assembly (7) is symmetrically suspended inside the shell assembly (6); The paper feeding assembly (5) comprises a paper box (501), a pushing unit (502), an elastic unit (503) and a roller unit (504); the paper box (501) is arranged at one end of the carrying and transmitting assembly (4) away from the copier body (1); the pushing unit (502) is arranged on the paper box (501); the elastic unit (503) is arranged at the output end of the pushing unit (502); the roller unit (504) is connected to one end of the elastic unit (503) away from the pushing unit (502); and the roller unit (504) is located inside the paper box (501); The roller unit (504) has a push-lock state and a pull-back rolling state.

2. The automatic paper feeding mechanism for a copier according to claim 1, characterized in that: The paper box (501) is provided with a baffle (5011) at one end away from the load-bearing transfer component (4), and the paper box (501) is provided with a transfer opening (5012) at one end close to the load-bearing transfer component (4), and the transfer opening (5012) and the load-bearing transfer component (4) are located at the same horizontal height.

3. The automatic paper feeding mechanism for a copier according to claim 2, characterized in that: The pushing unit (502) comprises a bearing seat (5021), a cylinder (5022), a push shaft (5023) and a fixed block (5024); the bearing seat (5021) is arranged on one side of the top end of the paper box (501); the cylinder (5022) is arranged at one end of the bearing seat (5021) close to the transfer port (5012); one end of the push shaft (5023) is movably inserted on the bearing seat (5021); the other end of the push shaft (5023) is connected to the output end of the cylinder (5022); the fixed block (5024) is fixedly connected to one end of the push shaft (5023) away from the cylinder (5022); and the elastic unit (503) is connected to the fixed block (5024).

4. The automatic paper feeding mechanism for a copier according to claim 3, characterized in that: The elastic unit (503) comprises a fixed rod (5031), a torsion spring (5032), a rotating sleeve (5033) and a connecting rod (5034); the fixed rod (5031) is connected to the fixed block (5024); the rotating sleeve (5033) is rotatably sleeved on an end of the fixed rod (5031) away from the fixed block (5024); one end of the torsion spring (5032) is fixedly connected to the fixed rod (5031); the other end of the torsion spring (5032) is inserted into the rotating sleeve (5033); the connecting rod (5034) is connected to an end of the torsion spring (5032) extending out of the rotating sleeve (5033); and the roller unit (504) is connected to an end of the connecting rod (5034) away from the rotating sleeve (5033).

5. The automatic paper feeding mechanism for a copier according to claim 4, characterized in that: The roller unit (504) comprises a main shaft (5041), an insert shaft (5042), a sleeve shaft (5043), an extrusion groove (5044), a roller shaft (5045) and a roller wheel (5046); the main shaft (5041) is connected to an end of the connecting rod (5034) away from the rotating sleeve (5033); the insert shaft (5042) is rotatably connected to the end of the main shaft (5041); the sleeve shaft (5043) is sleeved on the outer wall of the insert shaft (5042) The extrusion grooves (5044) are arranged in an annular shape and are evenly spaced on the outer wall of the sleeve shaft (5043); the roller (5045) is movably arranged on the extrusion grooves (5044); the roller (5046) is sleeved on the outer wall of the sleeve shaft (5043); the extrusion grooves (5044) are curved; the length of one end of the extrusion grooves (5044) is less than the diameter of the roller (5045); and the length of the other end of the extrusion grooves (5044) is greater than the diameter of the roller (5045).

6. The automatic paper feeding mechanism for a copier according to claim 5, characterized in that: The load-carrying transmission component (4) comprises a mounting frame (401), a bearing plate (402), a bearing frame (403), a driving shaft (404), a conveying belt (405), a transmission belt (406) and a reduction motor (407); the mounting frame (401) is symmetrically arranged on the support frame (3); the bearing plate (402) is arranged between two mounting frames (401); the bearing frame (403) is symmetrically arranged at the ends of the bearing plates (402); the driving shaft (404) is rotatably arranged on the bearing frame (403); the conveying belt (405) is sleeved on the driving shaft (404); the reduction motor (407) is arranged at the bottom end of the bearing frame (403); one end of the transmission belt (406) is sleeved on the driving shaft (404); and the other end of the transmission belt (406) is sleeved on the output end of the reduction motor (407).

7. The automatic paper feeding mechanism for a copier according to claim 6, characterized in that: The shell component (6) includes a shell (601), a smoothing cavity (602) and a rectangular slide groove (603); the shell (601) is arranged at the top of the load-bearing and transfer component (4); the smoothing cavity (602) is opened inside the shell (601); the rectangular slide groove (603) is symmetrically opened on the inner wall of the shell (601); and one end of the smoothing component (7) is movably inserted into the rectangular slide groove (603).

8. The automatic paper feeding mechanism for a copier according to claim 7, characterized in that: The smoothing component (7) comprises a hanger (701), a hanger rod (702), a motor (703), a rotating unit (704), a sliding unit (705) and a smoothing scraper (706); the hanger (701) is hung on the inner top wall of the shell component (6); one end of the hanger rod (702) is arranged on the hanger (701); the other end of the hanger rod (702) is connected to the inner top wall of the shell component (6); the rotating unit (704) is rotatably arranged on the hanger (701), the motor (703) is arranged on one end of the hanger (701) away from the rotating unit (704), the sliding unit (705) is slidably mounted on the hanger (702), one end of the smoothing scraper (706) is fixedly connected to the rotating unit (704), the middle end of the smoothing scraper (706) is slidably inserted on the sliding unit (705), and the other end of the smoothing scraper (706) is slidably inserted on the rectangular slide groove (603).

9. The automatic paper feeding mechanism for a copier according to claim 8, characterized in that: The rotating unit (704) includes a gear (7041), a chain (7042) and a chain rod (7043); the gear (7041) is rotatably arranged on the hanger (701) in a rectangular shape; the chain (7042) is meshingly sleeved on a plurality of the gears (7041); one end of the chain rod (7043) is fixedly connected to the chain (7042); the other end of the chain rod (7043) is rotatably inserted into the smoothing scraper (706); one of the gears (7041) is connected to the output end of the motor (703).

10. The automatic paper feeding mechanism for a copier according to claim 9, characterized in that: The sliding unit (705) includes a sliding sleeve (7051), a slide plate (7052) and a slide groove (7053); the sliding sleeve (7051) is slidably mounted on the suspension rod (702); the slide plate (7052) is connected between two sliding sleeves (7051); the slide groove (7053) is opened on the slide plate (7052); and the middle end of the smoothing scraper (706) is slidably inserted in the slide groove (7053).

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