Paper feeding mechanism and multi-function printer

Abstract

The utility model discloses a paper feeding mechanism and a multi-function printer, the paper feeding mechanism is applied to the multi-function printer, and the paper feeding mechanism comprises a mounting seat; the driving assembly comprises a driving part and a rotating shaft, the rotating shaft is rotatably arranged on the mounting base, the driving part is connected with the rotating shaft, the driving part can drive the rotating shaft to rotate in the first rotating direction or the second rotating direction, and the first rotating direction is opposite to the second rotating direction; the one-way bearing is arranged on the rotating shaft in a sleeving manner; and the first cam is arranged on the one-way bearing in a sleeving mode, and the one-way bearing can drive the first cam to synchronously rotate along with the rotating shaft when the rotating shaft rotates in the first rotating direction and allow the first cam and the rotating shaft to rotate relatively when the rotating shaft rotates in the second rotating direction. According to the paper feeding mechanism, rotation torque does not need to be kept in the rotation working process, and the load of the driving piece cannot be affected when the rotation torque is large.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of office equipment, and in particular to a paper feeding mechanism and a transaction machine. BACKGROUND

[0002] In the design of a transaction machine (such as a printer or a scanner), in order to ensure that a paper sheet can be accurately aligned when being put in, a special paper blocking piece is usually designed to stand up and block the paper head. The paper blocking piece is in a working state when the transaction machine is powered on, helping the user to align the paper sheet. When the transaction machine starts to work, the paper blocking piece needs to be automatically laid down to release the paper sheet, so as to ensure that the paper sheet can smoothly pass through the transaction machine for printing or scanning.

[0003] In the prior art, a cam module is widely used to control the standing and laying down states of the paper blocking piece. The cam module switches the states of the paper blocking piece by forward and reverse rotation. However, a certain torque needs to be maintained in this process to ensure that the paper blocking piece has sufficient holding force in the standing state, so as to prevent the paper sheet from being mistakenly pushed into the transaction machine without being aligned. However, the size of the torque needs to be accurately controlled. If the torque is too small, the paper blocking piece will not have sufficient holding force in the standing state, and cannot effectively block the paper sheet. If the torque is too large, the load of the driving part will be increased, which may cause the overall performance of the transaction machine to decrease or the energy consumption to increase. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of paper feeding mechanism and transaction machine, paper feeding mechanism does not need to maintain the torque of rotation in the process of working, when the torque of rotation is larger, the load of driving part is also not affected.

[0005] In order to achieve the above purpose, the present application discloses a paper feeding mechanism for a transaction machine, comprising:

[0006] a mounting seat;

[0007] a driving assembly, the driving assembly comprising a driving part and a rotating shaft, the rotating shaft being rotatably arranged on the mounting seat, the driving part being connected with the rotating shaft, the driving part being capable of driving the rotating shaft to rotate in a first rotation direction or a second rotation direction, the first rotation direction being opposite to the second rotation direction;

[0008] a one-way bearing, the one-way bearing being sleeved on the rotating shaft;

[0009] a first cam, the first cam being sleeved on the one-way bearing, the one-way bearing being capable of driving the first cam to rotate synchronously with the rotating shaft when the rotating shaft rotates in the first rotation direction, and allowing the first cam and the rotating shaft to rotate relatively when the rotating shaft rotates in the second rotation direction.

[0010] As an optional implementation, the paper feeding mechanism further comprises:

[0011] a housing;

[0012] a paper stopper movably arranged in the housing, the first cam being capable of moving the paper stopper to extend at least a part of the paper stopper out of the housing when the rotating shaft rotates in the first rotation direction; and

[0013] a paper separating wheel sleeved on the rotating shaft, the paper separating wheel being used to move paper into the transaction machine when the rotating shaft rotates in a second rotation direction.

[0014] As an optional implementation, the paper feeding mechanism further comprises:

[0015] a second cam rotatably arranged on the mounting base, the second cam being capable of abutting against the paper stopper when rotating, the first cam being capable of rotating the second cam when the rotating shaft rotates in the first rotation direction, so that the second cam moves the paper stopper; and

[0016] a first reset member connected with the second cam, the first reset member being used to apply a reset force to the second cam in a direction away from the paper stopper, so that the second cam pushes the first cam to rotate in the second rotation direction.

[0017] As an optional implementation, the first reset member is a torsion spring, and the first reset member is sleeved on the second cam.

[0018] As an optional implementation, the first cam further comprises:

[0019] a first limiting portion arranged on an outer surface of the first cam, the first limiting portion being capable of abutting against the mounting base to limit the first cam from continuously rotating in the second rotation direction when the second cam pushes the first cam to rotate in the second rotation direction to a first preset position.

[0020] As an optional implementation, the mounting base further comprises:

[0021] a second limiting portion arranged on the mounting base, the second limiting portion being capable of abutting against the second cam to limit the second cam from continuously rotating in the second rotation direction when the second cam moves the paper stopper out of the housing.

[0022] As an optional implementation, the paper feeding mechanism further comprises:

[0023] A buffer is arranged between the first cam and the one-way bearing, the buffer can rotate with the first cam, and the buffer can rotate relative to the one-way bearing.

[0024] As an optional implementation, the buffer is an elastic member, the first cam has a receiving cavity, the one-way bearing is located inside the receiving cavity, a cavity wall of the receiving cavity is provided with a first clamping groove, and a torsion arm of the buffer is arranged inside the first clamping groove.

[0025] As an optional implementation, an inner ring of the one-way bearing is sleeved on the rotating shaft and rotates with the rotating shaft, an outer ring of the one-way bearing is connected to the first cam, the outer ring rotates synchronously with the inner ring when the rotating shaft rotates in the first rotation direction, and the outer ring can rotate relative to the inner ring when the rotating shaft rotates in the second rotation direction.

[0026] A second aspect of the embodiment of the present application discloses a transaction machine, comprising the paper feeding mechanism.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] The paper feeding mechanism provided by the embodiment of the present application transmits the rotation of the rotating shaft to the first cam through the one-way bearing, so that when the rotating shaft rotates in the first rotation direction, the one-way bearing drives the first cam to rotate synchronously with the rotating shaft, and when the rotating shaft rotates in the second rotation direction, the first cam does not rotate with the rotating shaft. The problem that the rotating shaft needs to overcome the torsional spring torque to rotate in the second rotation direction in the prior art is avoided, so that the paper feeding mechanism does not need to maintain the use torque when working, the wear and damage of the driving member caused by high load operation are avoided, the service life of the paper feeding mechanism is effectively prolonged, and the stability and reliability of the paper feeding mechanism are improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 One of the structure schematic diagrams of the paper feeding mechanism provided by the embodiment of the present application;

[0031] Figure 2 The second structure schematic diagram of the paper feeding mechanism provided by the embodiment of the present application;

[0032] Figure 3Fig. 1 is a schematic view of an internal structure of a paper feeding mechanism according to an embodiment of the present application;

[0033] Figure 4 Fig. 2 is a schematic view of a structure of a first cam according to an embodiment of the present application;

[0034] Figure 5 Fig. 3 is a schematic view of a structure of a second cam according to an embodiment of the present application;

[0035] Figure 6 Fig. 4 is a schematic view of a structure of a paper stopper when standing according to an embodiment of the present application;

[0036] Figure 7 Fig. 5 is a schematic view of a structure of the paper stopper when falling according to an embodiment of the present application;

[0037] Figure 8 Fig. 6 is another schematic view of an internal structure of the paper feeding mechanism according to an embodiment of the present application;

[0038] Figure 9 Fig. 7 is a schematic view of a structure of a mounting seat according to an embodiment of the present application; Figure 8 Fig. 8 is a schematic view of a cross-sectional structure along direction A-A according to an embodiment of the present application;

[0039] Figure 10 Fig. 9 is a schematic view of a structure of the first cam according to an embodiment of the present application;

[0040] Figure 11 Fig. 10 is another schematic view of a structure of the first cam according to an embodiment of the present application;

[0041] Figure 12 Fig. 11 is a schematic view of an explosion structure of a buffer when being a non-torsion spring according to an embodiment of the present application;

[0042] Figure 13 Fig. 12 is a schematic view of an explosion structure of the buffer when being a torsion spring according to an embodiment of the present application.

[0043] Legend of signs:

[0044] 100-paper feeding mechanism; 1-mounting seat; 11-second magnetic attraction part; 12-second limiting part; 2-driving assembly; 21-rotation shaft; 211-third limiting part; 3-one-way bearing; 31-inner ring; 32-outer ring; 4-first cam; 41-first limiting part; 42-first magnetic attraction part; 43-accommodation cavity; 44-first clamping groove; 45-mounting cover; 5-buffer; 51-torsion arm; 6-housing; 7-paper stopper; 71-paper stopping part; 8-paper separating wheel; 9-second cam; 91-first reset part; 92-mounting part; 93-abutting part; 94-third limiting part; X-first rotation direction; Y-second rotation direction. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0046] In the present application, the positions or location relations indicated by the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like are based on the positions or location relations shown in the drawings. These terms are mainly used for better describing the present application and its embodiments, and are not used for limiting the indicated devices, elements or components to have a specific position, or to be constructed and operated in a specific position.

[0047] In addition, the above-mentioned partial terms may be used to represent other meanings in addition to the position or location relation, for example, the term "upper" may also be used to represent a certain dependent relationship or connection relationship in some cases. A person of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0048] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. A person of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0049] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0050] In the design of a transaction machine, in order to ensure that the paper can be accurately aligned when it is put into the transaction machine, a special paper blocking piece is usually designed to stand and block the paper head of the paper. The paper blocking piece is in working state when the transaction machine is started, helping the user to align the paper. When the transaction machine starts to work, the paper blocking piece automatically falls down to release the paper, ensuring that the paper can smoothly pass through the paper blocking piece, so as to enter the inside of the transaction machine to perform printing work or scanning work.

[0051] In the prior art, cam modules are widely used to control the standing and falling state of the paper stopper. The standing and falling state of the paper stopper is mainly realized by the cooperation of a torsional spring and a cam feature. When the rotating shaft reverses, i.e. when the paper stopper needs to stand, the torsional spring stores energy and pushes the cam to rotate, thereby driving the paper stopper to reverse and stand. At this time, if the resistance to the cam exceeds the maximum torque provided by the torsional spring, the rotating shaft will continue to rotate, and the cam will be blocked and stop rotating.

[0052] When the rotating shaft rotates forward, i.e. when the paper stopper needs to fall, the torsional spring releases the previously stored energy, drives the cam to reset, so that the paper stopper falls. However, when the rotating shaft continues to rotate forward, it needs to continuously overcome the torque of the torsional spring to rotate, which leads to the need for precise control of the torque of the cam module in the prior art. If the torque is too small, the paper stopper will not be able to effectively block the paper in the standing state due to insufficient holding force. If the torque is too large, it will increase the load of the driving member, which may cause the overall performance of the transaction machine to decrease or the energy consumption to increase.

[0053] Therefore, the embodiments of the present application disclose a paper feeding mechanism and a transaction machine. A one-way bearing and a first cam are arranged between the rotating shaft and the cam, so that the rotating shaft does not need to resist the torque of the torsional spring when rotating forward. Thus, the paper feeding mechanism does not need to maintain the rotating torque during the paper feeding process, thereby avoiding the increase of the load of the driving member due to the excessive torque, and preventing damage to the driving member.

[0054] The technical solutions of the present application will be further described below with reference to specific embodiments and drawings.

[0055] Please refer to Figures 1 to 4 , Figure 1 FIG. 1 is a structural schematic diagram of a paper feeding mechanism 100 provided by the embodiments of the present application; Figure 2 FIG. 2 is another structural schematic diagram of the paper feeding mechanism 100 provided by the embodiments of the present application; Figure 3 FIG. 3 is a structural schematic diagram of the internal structure of the paper feeding mechanism 100 provided by the embodiments of the present application; Figure 4 FIG. 4 is a structural schematic diagram of a first cam 4 provided by the embodiments of the present application. The paper feeding mechanism 100 provided by the embodiments of the present application comprises a mounting seat 1, a driving assembly 2, a one-way bearing 3 and a first cam 4. The driving assembly 2 comprises a driving member and a rotating shaft 21. The rotating shaft 21 is rotatably arranged in the mounting seat 1. The driving member is connected with the rotating shaft 21. The driving member can drive the rotating shaft 21 to rotate in a first rotation direction A1 or a second rotation direction A2. The first rotation direction A1 and the second rotation direction A2 are opposite. The one-way bearing 3 is sleeved on the rotating shaft 21. The first cam 4 is sleeved on the one-way bearing 3. The one-way bearing 3 can drive the first cam 4 to rotate synchronously with the rotating shaft 21 when the rotating shaft 21 rotates in the first rotation direction A1, and allow the first cam 4 and the rotating shaft 21 to rotate relatively when the rotating shaft 21 rotates in the second rotation direction A2.

[0056] The mounting base 1 is the basis of the whole paper feeding mechanism 100, and provides necessary support and positioning functions for other components of the paper feeding mechanism 100. The rotating shaft 21, the driving member and other components are mounted on the mounting base 1, which prevents the paper feeding mechanism 100 from shaking and causing the first cam 4 or the rotating shaft to shake or fall off during work.

[0057] Optionally, the mounting base 1 can be provided as an integral structure or as a plurality of sub-mounting structures assembled together, and the form of the mounting base 1 is not limited in the embodiment.

[0058] The driving assembly 2 includes a driving member and a rotating shaft 21, and is the power source of the paper feeding mechanism 100. The rotating shaft 21 is rotatably arranged on the mounting base 1, that is, the driving member can drive the rotating shaft 21 to rotate in a first rotation direction A1 or a second rotation direction A2. The rotation directions of the first rotation direction A1 and the second rotation direction A2 are opposite, which provides the possibility of forward and reverse movement of the paper feeding mechanism 100. The driving member is connected with the rotating shaft 21, and through the work of the driving member, the rotating shaft 21 can be controlled to rotate in the first rotation direction A1 or the second rotation direction A2.

[0059] Optionally, the driving member can be a motor, a pneumatic cylinder, a compressor or other devices capable of driving the rotating shaft 21 to rotate in the first rotation direction A1 or the second rotation direction A2.

[0060] The one-way bearing 3 is sleeved on the rotating shaft 21, and the first cam 4 is sleeved on the one-way bearing 3, so that the one-way bearing 3 plays a transmission control role.

[0061] Specifically, when the rotating shaft 21 rotates in the first rotation direction A1, the one-way bearing 3 can drive the first cam 4 to rotate synchronously with the rotating shaft 21. This means that in the first rotation direction A1, the movement of the rotating shaft 21 is directly transmitted to the first cam 4, so that the first cam 4 rotates synchronously with the rotating shaft 21 in the first rotation direction A1. It can be understood that at this time, the first cam 4 can drive the paper stopping piece 7 to stand up, thereby realizing the function of stopping paper.

[0062] Conversely, when the rotating shaft 21 rotates in the second rotation direction A2, the one-way bearing 3 allows the first cam 4 and the rotating shaft 21 to rotate relatively, which means that in the second rotation direction A2, the movement of the rotating shaft 21 will not be transmitted to the first cam 4 or the transmission effect will be greatly weakened. It can be understood that when the rotating shaft 21 rotates in the second rotation direction A2, only the separating wheel 8 is driven to rotate for paper feeding, and the first cam 4 does not rotate with the rotating shaft 21 in the second rotation direction A2, thereby ensuring the laying of the paper stopping piece 7, so that the paper passes through the paper stopping piece 7 smoothly.

[0063] Optionally, the one-way bearing 3 can be a bearing cover type one-way bearing 3, a chain type one-way bearing 3, a needle type one-way bearing 3, etc., and the embodiments of the present application do not limit this.

[0064] Optionally, the first cam 4 can be a cam with a specific structural profile. By designing a cam profile with a specific arc, the vertical and recumbent angles of the paper stopping piece 7 can be controlled. The first cam 4 can also be an eccentric cam. By adjusting the degree and direction of the cam eccentricity, the motion trajectory and force of the paper stopping piece 7 can be changed, thereby achieving more precise control of the paper. The first cam 4 can also be a combined cam, which combines multiple cams together to form a complex transmission system.

[0065] In this way, the paper feeding mechanism 100 provided by the embodiments of the present application relies on the one-way bearing 3 to transmit the rotation of the rotating shaft 21 to the first cam 4, so that when the rotating shaft 21 rotates in the first rotation direction A1, the one-way bearing 3 drives the first cam 4 to rotate synchronously with the rotating shaft 21, and when the rotating shaft 21 rotates in the second rotation direction A2, the first cam 4 does not rotate with the rotating shaft 21. This avoids the problem of needing to overcome the torsional spring torque when the rotating shaft 21 rotates in the second rotation direction A2 in the prior art, so that the paper feeding mechanism 100 does not need to maintain the use of torque when working, avoiding the wear and damage caused by high-load operation to the driving member, effectively prolonging the service life of the paper feeding mechanism 100, and improving the stability and reliability of the paper feeding mechanism 100.

[0066] Please refer to Figure 1 and Figure 2 In some embodiments, the paper feeding mechanism 100 further comprises: a housing 6; a paper stopping piece 7 movably arranged in the housing 6, the first cam 4 being capable of driving the paper stopping piece 7 to move when the rotating shaft 21 rotates in the first rotation direction A1, so that at least part of the paper stopping piece 7 can extend out of the housing 6; and a separating wheel 8 sleeved on the rotating shaft 21, the separating wheel 8 being used to drive the paper to move into the transaction machine when the rotating shaft 21 rotates in the second rotation direction A2.

[0067] The housing 6 is the peripheral structure of the paper feeding mechanism 100, which is used to protect the various components inside the paper feeding mechanism 100, prevent external dust and moisture and other impurities from entering the inside of the paper feeding mechanism 100, and cause pollution and damage to the various components inside the paper feeding mechanism 100.

[0068] The paper stopping piece 7 is a movable component, which is movably arranged in the housing 6. The paper stopping piece 7 can have a paper stopping portion 71, and the surface of the housing 6 can be provided with a avoiding slot, and the paper stopping portion 71 can extend out of the avoiding slot to block the movement of the paper and ensure the alignment of the paper.

[0069] Specifically, when the transaction machine needs to work, the rotating shaft 21 rotates along the second rotating direction A2, and the paper blocking member 7 is laid down, so that the paper blocking part 71 does not protrude out of the shell 6, and the paper can enter the transaction machine to be printed or scanned. When the transaction machine does not need to work, the rotating shaft 21 rotates along the first rotating direction A1, and the first cam 4 drives the paper blocking member 7 to move, and the paper blocking part 71 protrudes out of the avoiding slot of the shell 6, so as to block the paper from moving into the transaction machine, and at the same time, the paper blocking part 71 can align the paper head of the paper, so as to prevent the paper from being placed disorderly.

[0070] The paper separating wheel 8 is a component sleeved on the rotating shaft 21, and the paper separating wheel 8 is used to drive the paper to move into the transaction machine when the rotating shaft 21 rotates along the second rotating direction A2. Optionally, the paper separating wheel 8 can have a soft surface material, such as rubber or silicone, to increase the friction between the paper separating wheel 8 and the paper, so as to more effectively drive the paper to move. The design and position of the paper separating wheel 8 can be adjusted according to the type and size of the paper, so as to ensure that the paper can be smoothly and accurately fed into the working area.

[0071] Please refer to Figures 5 to 7 , Figure 5 the structure schematic view of the second cam 9 provided by the embodiment of the present application, Figure 6 the structure schematic view of the paper blocking member 7 when it is erected, Figure 7 the structure schematic view of the paper blocking member 7 when it is laid down. In some embodiments, the paper feeding mechanism 100 further comprises: a second cam 9, the second cam 9 is rotatably installed on the mounting seat 1, and the second cam 9 can abut against the paper blocking member 7 when rotating, the first cam 4 can drive the second cam 9 to rotate when the rotating shaft 21 rotates along the first rotating direction A1, so as to drive the paper blocking member 7 to move; and a first reset member 91 connected with the second cam 9, the first reset member 91 is used to apply a reset force to the second cam 9 in a direction away from the paper blocking member 7, so as to drive the first cam 4 to rotate along the second rotating direction A2.

[0072] Specifically, the second cam 9 comprises a mounting part 92, and the mounting seat 1 comprises a mounting shaft, the mounting part 92 is sleeved on the mounting shaft, so as to fix the second cam 9. The second cam 9 further comprises an abutting part 93 and a third limiting part 94, the abutting part 93 is used to abut against the paper blocking member 7, so as to drive the paper blocking member 7 to move. The third limiting part 94 can abut against the mounting seat 1, so as to limit the rotation of the second cam 9.

[0073] The second cam 9 is rotatably installed on the mounting seat 1, and when the second cam 9 rotates, the second cam 9 can abut against or push the paper blocking member 7, so as to make the paper blocking member 7 erect, and realize the alignment of the position of the paper.

[0074] Further, the first cam 4 and the second cam 9 are in linkage. When the rotating shaft 21 rotates in the first rotating direction A1, the rotation of the first cam 4 drives the second cam 9 to rotate in the second rotating direction A2, so that the second cam 9 drives the paper stopper 7 to move, and the paper stopper 7 is erected.

[0075] Optionally, the paper stopper 7 can move in the horizontal direction or the vertical direction by the abutment of the second cam 9 when the second cam 9 rotates in the second rotating direction A2, and the paper stopper 7 can also be driven to rotate in the first rotating direction A1 by the abutment of the second cam 9 when the second cam 9 rotates in the second rotating direction A2, so that the paper stopper part 71 protrudes from the avoiding hole.

[0076] In addition, the paper feeding mechanism 100 is also provided with a first reset member 91 connected with the second cam 9. The main function of the first reset member 91 is to apply a reset force to the second cam 9, and the direction of the force is to drive the second cam 9 to rotate away from the paper stopper 7. When the first cam 4 stops rotating in the first rotating direction A1, the second cam 9 will be affected by the reset force, so as to automatically return to the initial position of the second cam 9 and cancel the pushing force or the jolt force on the paper stopper 7.

[0077] The first reset member 91 ensures that the second cam 9 can be reset to cancel the force on the paper stopper 7 when the transaction machine needs to work, so as to ensure that the paper stopper 7 can automatically lay down and the paper can smoothly pass through the paper stopper 7 to enter the working area.

[0078] Optionally, the first reset member 91 can be a torsional spring, a tension spring, a spring, a magnetic reset member and other components capable of applying a reset force to the second cam 9 to restore the second cam 9 to the initial position, and the embodiments of the present application do not limit the same.

[0079] Please refer to Figure 6 and Figure 7 In some embodiments, the first reset member 91 is a torsional spring, and the first reset member 91 is sleeved on the second cam 9.

[0080] It can be understood that the torsional spring has excellent elastic performance, and the elastic reset function of the torsional spring can reduce the energy loss of the mechanical device during operation. After the second cam 9 rotates and drives the paper stopper 7 to move, the torsional spring can reset the second cam 9 to the initial position through the elastic force of the torsional spring, so as to ensure the stability and reliability of the automatic laying down action of the paper stopper 7.

[0081] At the same time, the torsional spring is sleeved on the second cam 9, which can greatly save space and make the overall structure more compact. Due to the compact structure, unnecessary friction and wear are reduced, the mechanical efficiency is further improved, and it is beneficial to reduce the volume and weight of the paper feeding mechanism 100, so as to reduce the volume and weight of the transaction machine.

[0082] In addition, the torsion spring and the second cam 9 are matched in a relatively simple manner, without the need for a complicated assembly process, which helps to reduce production costs, improve production efficiency, and facilitate maintenance of the torsion spring and the second cam 9.

[0083] Please refer to Figure 4 In some embodiments, the first cam 4 further comprises a first limiting portion 41 provided on the outer surface of the first cam 4, which can abut against the mounting seat 1 when the second cam 9 pushes the first cam 4 to rotate in the second rotation direction A2 to the first preset position, so as to limit the continuous rotation of the first cam 4 in the second rotation direction A2.

[0084] The first limiting portion 41 is provided on the outer surface of the first cam 4, and when the second cam 9 pushes the first cam 4 to rotate in the second rotation direction A2, this rotation process will continue until the first limiting portion 41 of the first cam 4 abuts against the mounting seat 1, so that the first cam 4 stops rotating in the second rotation direction A2, indicating that the first cam 4 has reached the predetermined position, i.e., the first preset position.

[0085] Further, the first preset position is the position of the first cam 4 when the paper stopping portion 71 of the paper stopping piece 7 retracts from the avoiding slot, and the second preset position is the position of the first cam 4 when the paper stopping portion 71 of the paper stopping piece 7 extends out of the avoiding slot.

[0086] Specifically, once the first limiting portion 41 abuts against the mounting seat 1, the first limiting portion 41 effectively prevents the first cam 4 from continuing to rotate in the second rotation direction A2, preventing the first cam 4 and the paper stopping piece 7 from malfunctioning or performance degradation due to excessive rotation, thereby ensuring that the entire paper feeding mechanism 100 can work stably and reliably.

[0087] Optionally, please refer to Figure 8 and Figure 9 , Figure 8 the second internal structure schematic diagram of the paper feeding mechanism 100 provided by the embodiments of the present application, Figure 9 is Figure 8 the first limiting portion 41 can be provided with a first magnetic attraction portion 42, and the mounting seat 1 is provided with a second magnetic attraction portion 11, the first magnetic attraction portion 42 and the second magnetic attraction portion 11 are correspondingly arranged, when the first cam 4 rotates to the first preset position, the first magnetic attraction portion 42 can be attracted to the second magnetic attraction portion 11, so that the first cam 4 can be fixed at the first preset position, preventing the first cam 4 from shaking due to the vibration generated during the operation of the paper feeding mechanism 100, affecting the laying state of the paper stopping portion 71, and preventing the paper stopping portion 71 from standing up and affecting the movement of the paper during the operation of the office machine.

[0088] Please refer to Figures 8 to 10 , Figure 10A structure diagram of the mounting seat 1 is provided in the embodiments of the present application. In some embodiments, the mounting seat 1 further comprises a second limiting portion 12 arranged on the mounting seat 1. When the second cam 9 drives the paper stop piece 7 to extend out of the shell 6, the second limiting portion 12 can abut against the second cam 9 to limit the second cam 9 from continuing to rotate in the second rotation direction A2.

[0089] Specifically, the second limiting portion 12 arranged on the mounting seat 1 is used to limit the rotation of the second cam 9 in the second rotation direction A2. When the second cam 9 drives the paper stop piece 7 to extend out of the shell 6 in the rotation process, i.e., the paper stop portion 71 extends out of the avoiding groove, the second limiting portion 12 can abut against the second cam 9, thereby ensuring that the paper stop piece 7 stays at the correct position. The arrangement of the second limiting portion 12 improves the accuracy of the paper stop piece 7 and also enhances the stability and reliability of the paper stop piece 7.

[0090] In addition, the second limiting portion 12 limits the rotation range of the second cam 9, thereby avoiding the damage or wear of the second cam 9 and the paper stop piece 7 caused by excessive rotation, and prolonging the service life of the paper feeding mechanism 100.

[0091] Please refer to Figure 11 and Figure 12 , Figure 11 A structure diagram of the first cam 4 is provided in the embodiments of the present application. Figure 12 A structure diagram of the buffer 5 is provided in the embodiments of the present application. In some embodiments, the paper feeding mechanism 100 further comprises a buffer 5 arranged between the first cam 4 and the one-way bearing 3. The buffer 5 can rotate synchronously with the first cam 4, and the buffer 5 can rotate relatively with the one-way bearing 3.

[0092] Specifically, the buffer 5 is arranged between the first cam 4 and the one-way bearing 3. The buffer 5 can not only rotate synchronously with the first cam 4, but also rotate relatively with the one-way bearing 3 when necessary.

[0093] In the operation of the paper feeding mechanism 100, if the rotating shaft 21 also immediately stops rotating with the first cam 4 when the first cam 4 stops rotating, a great impact and damage to the driving member can be caused. When the first cam 4 stops rotating, the buffer member 5 and the one-way bearing 3 can continue to rotate / slide relative to each other, so that the buffer member 5 absorbs and disperses the impact force caused by the sudden stop. That is, the buffer member 5 can be fixed on the first cam 4 and positioned on the one-way bearing 3 by a friction force sleeve. Due to the friction force between the buffer member 5 and the one-way bearing 3, the one-way bearing 3 can drive the buffer member 5 and the first cam 4 to rotate together. When the first cam 4 stops rotating, the one-way bearing 3 can overcome the friction force between the buffer member 5 and the one-way bearing 3, so that the buffer member 5 and the one-way bearing 3 can continue to rotate or slide relative to each other. This buffering effect not only protects the driving member from damage, but also ensures the smooth operation of the rotating shaft 21, avoiding vibration and noise caused by sudden stop.

[0094] That is, when the first cam 4 rotates to the second preset position in the first rotating direction A1 and the paper blocking part 71 of the paper blocking member 7 extends out of the avoiding groove, the first cam 4 stops rotating, and the buffer member 5 stops rotating with the first cam 4. At this time, if the rotating shaft 21 continues to rotate, the buffer member 5 can slide relative to the outer ring 32 of the one-way bearing 3, thereby protecting the driving member from damage.

[0095] In addition, the buffer member 5 can ensure that the paper feeding mechanism 100 always maintains stable performance during long-term use through its unique buffering and adjusting effect, thereby reducing the downtime caused by wear or failure of the first cam 4.

[0096] Optionally, the buffer member 5 can be a torsional spring, plastic, polyoxymethylene (POM), rubber, or other structures that can buffer the rotating shaft 21, and the embodiments of the present application do not limit the same.

[0097] Please refer to Figure 13 , Figure 13 FIG. 1 is an exploded structural schematic view of the buffer member 5 as a torsional spring. In some embodiments, the buffer member 5 is an elastic member, the first cam 4 has a containing cavity 43, the buffer member 5 and the one-way bearing 3 are located inside the containing cavity 43, the cavity wall of the containing cavity 43 is provided with a first clamping groove 44, and the torsional arm 51 of the buffer member 5 is located inside the first clamping groove 44.

[0098] Optionally, the first cam 4 can further include a mounting cover 45, and the mounting cover 45 covers the containing cavity 43 to protect the buffer member 5 and the one-way bearing 3 inside the containing cavity 43, avoiding damage to the buffer member 5 and the one-way bearing 3 by dust, water, and other impurities.

[0099] Specifically, please refer to Figure 13The buffer 5 can be a torsion spring. The torsion spring can not only effectively absorb and disperse the impact force generated when the first cam 4 is stopped due to the limitation, but also protect the driving member from damage, ensure the stable operation of the rotating shaft 21, and reduce the generation of vibration and noise. The torsion spring can improve the stability and reliability of the paper feeding mechanism 100 and prolong the service life of the paper feeding mechanism 100.

[0100] When the first cam 4 in the paper feeding mechanism 100 is stopped from rotating due to the limitation of the first limiting portion 41, if the rotating shaft 21 also immediately stops rotating, the sudden stop action will generate a large impact force and vibration.

[0101] Further, the torsion arm 51 of the torsion spring is fixed inside the first clamping groove 44 and is sleeved on the one-way bearing 3. When the first cam 4 stops rotating and the rotating shaft 21 still tries to continue rotating, the torsion spring starts to play its buffering role. Specifically, the torsion spring can slide relative to the outer ring 32 of the one-way bearing 3, thereby protecting the driving member from damage.

[0102] The elastic property of the torsion spring enables it to store and release energy. When the rotating shaft 21 tries to continue rotating, the rotating shaft 21 will drive the one-way bearing 3 to rotate, and the one-way bearing 3 will drive the torsion spring to twist and deform.

[0103] Please refer to the above Figure 4 In other embodiments, the buffer 5 can not be provided, and the first cam 4 can be directly sleeved on the one-way bearing 3. Specifically, the inner ring 31 of the one-way bearing 3 is sleeved on the rotating shaft 21 and rotates with the rotating shaft 21, and the first cam 4 is arranged on the outer ring 32 of the one-way bearing 3. The outer ring 32 rotates synchronously with the inner ring 31 when the rotating shaft 21 rotates in the first rotation direction A1, and can rotate relative to the inner ring 31 when the rotating shaft 21 rotates in the second rotation direction A2. That is, the first cam 4 is sleeved and positioned on the one-way bearing 3 by using friction. Due to the friction between the first cam 4 and the one-way bearing 3, the one-way bearing 3 can drive the first cam 4 to rotate together. When the first cam 4 stops rotating, the one-way bearing 3 can overcome the friction between the first cam 4 and the one-way bearing 3, so that the first cam 4 and the one-way bearing 3 can continue to rotate or slide relative to each other.

[0104] The inner ring 31 of the one-way bearing 3 is sleeved on the rotating shaft 21 and connected with the rotating shaft 21. When the rotating shaft 21 rotates, the inner ring 31 of the one-way bearing 3 can rotate synchronously with the rotating shaft 21. The outer ring 32 of the one-way bearing 3 is connected with the first cam 4.

[0105] When the rotating shaft 21 rotates in the first rotation direction A1, the inner ring 31 and the outer ring 32 of the one-way bearing 3 rotate synchronously. This is because the design of the one-way bearing 3 allows it to realize unimpeded transmission in this rotation direction. At this time, the first cam 4 also rotates with the rotation of the outer ring 32, thereby completing a certain specific action or function in the mechanical system.

[0106] However, when the rotating shaft 21 rotates in the second rotation direction A2, the inner ring 31 and the outer ring 32 of the one-way bearing 3 will rotate relatively. This relative rotation characteristic is one of the core functions of the one-way bearing 3, which allows the rotating shaft 21 and the one-way bearing 3 to realize synchronous transmission in the first rotation direction A1, and remain locked or limited transmission in the second rotation direction A2.

[0107] The second aspect of the embodiments of the present application discloses a transaction machine, comprising the paper feeding mechanism 100. Since the transaction machine provided by the embodiments of the present application comprises the paper feeding mechanism 100 provided by the first aspect of the embodiments of the present application, the transaction machine has the beneficial effects of any of the paper feeding mechanisms 100 described above, which will not be repeated here.

[0108] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A paper feeding mechanism for an office machine, characterized by comprising: The paper feeding mechanism comprises: a mounting base; a driving assembly, the driving assembly comprising a driving member and a rotating shaft, the rotating shaft being rotatably arranged on the mounting base, the driving member being connected with the rotating shaft, the driving member being capable of driving the rotating shaft to rotate in a first rotating direction or a second rotating direction, the first rotating direction and the second rotating direction being opposite; a one-way bearing, the one-way bearing being sleeved on the rotating shaft; a first cam, the first cam being sleeved on the one-way bearing, the one-way bearing being capable of driving the first cam to rotate synchronously with the rotating shaft when the rotating shaft rotates in the first rotating direction, and the one-way bearing allowing the first cam to rotate relative to the rotating shaft when the rotating shaft rotates in the second rotating direction.

2. The paper feeding mechanism according to claim 1, characterized in that, The paper feeding mechanism further comprises: a housing; a paper blocking member, the paper blocking member being movably arranged on the housing, the first cam being capable of driving the paper blocking member to move when the rotating shaft rotates in the first rotating direction, so that at least a part of the paper blocking member can extend out of the housing; and a separating wheel, the separating wheel being sleeved on the rotating shaft, the separating wheel being used for driving paper to move into the transaction machine when the rotating shaft rotates in the second rotating direction.

3. The paper feeding mechanism according to claim 2, characterized in that, The paper feeding mechanism further comprises: a second cam, the second cam being rotatably arranged on the mounting base, the second cam being capable of abutting against the paper blocking member when rotating, the first cam being capable of driving the second cam to rotate when the rotating shaft rotates in the first rotating direction, so that the second cam drives the paper blocking member to move; and a first reset member, the first reset member being connected with the second cam, the first reset member being used for applying a reset force to the second cam in a direction away from the paper blocking member, so that the second cam pushes the first cam to rotate in the second rotating direction.

4. The paper feeding mechanism according to claim 3, characterized in that, The first reset member is a torsion spring, the first reset member being sleeved on the second cam.

5. The paper feeding mechanism according to claim 3, characterized in that, The first cam further comprises: a first limiting portion, the first limiting portion being arranged on an outer surface of the first cam, the first limiting portion being capable of abutting against the mounting base when the second cam pushes the first cam to rotate in the second rotating direction to a first preset position, so as to limit the first cam from continuously rotating in the second rotating direction.

6. The paper feeding mechanism according to claim 3, characterized in that, The mounting base further comprises: a second limiting portion, the second limiting portion being arranged on the mounting base, the second limiting portion being capable of abutting against the second cam when the second cam drives the paper blocking member to extend out of the housing, so as to limit the second cam from continuously rotating in the second rotating direction.

7. The paper feeding mechanism according to claim 1, characterized in that, The paper feeding mechanism further comprises: a buffer member, the buffer member being arranged between the first cam and the one-way bearing, the buffer member being capable of rotating synchronously with the first cam, and the buffer member being capable of rotating relative to the one-way bearing.

8. The paper feeding mechanism according to claim 7, characterized in that, The buffer member is an elastic member, the first cam having a receiving cavity, the one-way bearing being located inside the receiving cavity, a cavity wall of the receiving cavity being provided with a first clamping groove, a torsion arm of the buffer member being arranged inside the first clamping groove.

9. The paper feeding mechanism according to claim 1, characterized in that, The inner ring of the one-way bearing is sleeved on the rotating shaft and rotates with the rotating shaft, and the outer ring of the one-way bearing is connected to the first cam, and the outer ring rotates synchronously with the inner ring when the rotating shaft rotates in the first rotation direction, and can rotate relative to the inner ring when the rotating shaft rotates in the second rotation direction.

10. A transaction machine characterized by The paper feeding mechanism comprises the one-way bearing according to any one of claims 1-9.

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