Automatic paging paper feeder

Abstract

The utility model discloses an automatic paging paper feeder which is provided with a first paper outlet wheel higher than a paper inlet platform and a reverse wheel lower than the bottom surface of an upper box body, the reverse wheel limits paper to move towards the paper outlet end, rotation of the reverse wheel is similar to a finger twisting mode, a single piece of paper is kept to pass through, and other pieces of paper are prevented from moving. In addition, the upper box body is rotationally connected with the main frame, even if the upper box body is stuck or overlapped, a user can quickly open the upper box body and take out the paper, it is guaranteed that the paging paper feeder can normally work subsequently, the downtime is shortened, and the use efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper feeders, in particular to an automatic paging paper feeder. Background Art

[0002] A paging feeder is a device with paging function, often used in printers, copiers, and quick-print machines to deliver single pages of paper to the location to be printed. Common structures include Fig.10 As shown, place the paper on the paper feed belt, and feed the paper between the pressure plate and the paper output belt through the operation of the paper feed belt. Adjust the position of the pressure plate by adjusting the screws, and adjust the gap between the paper output belt and the pressure plate to form a paper feed gap.

[0003] However, in the prior art, the space between the pressure plate and the paper output belt cannot be opened or is inconvenient to open. After the pressure plate is adjusted, the paper will be pressed down by the pressure plate, forming a large static friction between the pressure plate and the paper, which is prone to jamming or re-sheeting, causing the paging feeder to not work properly. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an automatic page feeder.

[0005] The utility model provides an automatic paging paper feeder, comprising:

[0006] A main frame, comprising a paper feeding platform, and first side panels distributed along a first direction on both sides of the paper feeding platform, the main frame having a paper feeding end and a paper discharging end along a second direction, the first direction and the second direction being perpendicular to each other;

[0007] A paper discharge mechanism, comprising a paper discharge drive shaft provided at the paper discharge end, wherein both ends of the paper discharge drive shaft are rotatably connected to the two first side plates, the direction of the axis extension line of the paper discharge drive shaft is the first direction, and a plurality of first paper discharge wheels are sleeved at equal distances in the middle of the paper discharge drive shaft, and the top end of each of the first paper discharge wheels is higher than the top surface of the paper feeding platform;

[0008] A reversing mechanism is arranged above the paper discharge driving shaft, and comprises an upper box body rotatably connected to the main frame, a plurality of reversing wheels are evenly arranged inside the upper box body along the first direction, the axis extension direction of each reversing wheel is the first direction, the bottom end of each reversing wheel is lower than the bottom surface of the upper box body, the upper box body has a first state and a second state, when in the first state, the bottom surface of the upper box body and the top surface of the paper feeding platform are parallel, the reversing wheel is used to limit multiple sheets of paper from passing through the bottom end of the reversing wheel at the same time, when in the second state, the bottom plate of the upper box body and the top surface of the paper feeding platform have a first angle, and the first angle opens toward the paper feeding end;

[0009] The first driving member is disposed on one of the first side plates and is used to drive the paper discharge driving shaft to rotate, thereby driving the reversing wheel to rotate counterclockwise synchronously.

[0010] According to the technical solution provided in the embodiment of the present application, a third driven shaft is provided between the first side plate and the upper box body, the upper box body is rotatably connected to the main frame through the third driven shaft, the paper output drive shaft and the third driven shaft are connected through a fourth belt drive, and a transmission assembly is provided on one side of the third driven shaft, and the transmission assembly is used to drive the reversing wheel to rotate synchronously counterclockwise when the third driven shaft rotates.

[0011] According to the technical solution provided in the embodiment of the present application, the paper feeder also includes a multi-sheet detection mechanism for detecting the paper located between the reversing wheel and the first paper output wheel.

[0012] According to the technical solution provided in the embodiment of the present application, the over-sheeting detection mechanism includes an ultrasonic transmitter arranged in the upper box body, the ultrasonic transmitter is used to release ultrasonic signals and is located between the reversing wheel and the first paper output wheel, a propagation channel is provided at the bottom of the upper box body and the top of the main frame, an ultrasonic receiver is provided inside the main frame at a position corresponding to the propagation channel, and the ultrasonic receiver is used to receive the ultrasonic signal passing through the propagation channel.

[0013] According to the automatic paging feeder according to claim, it is characterized in that a paper feeding mechanism is provided in the middle of the top of the main frame, the paper feeding mechanism is arranged on the side of the reversing wheel away from the third driven shaft, and the paper feeding mechanism is used to drive the paper to move from the paper feeding end toward the paper discharging end.

[0014] According to the technical solution provided in the embodiment of the present application, the paper feeding mechanism includes a paper feeding drive shaft arranged below the reversing wheel, a first driven shaft is provided on the side of the paper feeding drive shaft away from the paper discharging drive shaft, a second driven shaft is provided on the side of the first driven shaft away from the paper discharging drive shaft, a paper feeding transmission belt is provided between the paper feeding drive shaft and the first driven shaft, a second belt is provided between the first driven shaft and the second driven shaft, paper feeding wheels are provided outside the first driven shaft and the second driven shaft, and the top surfaces of the paper feeding transmission belt and the paper feeding wheels are higher than the top surface of the paper feeding platform.

[0015] According to the technical solution provided in the embodiment of the present application, an installation frame is also provided inside the upper box body, and the installation frame includes two second side panels distributed along the first direction, and the two second side panels are provided with a reversal component near the paper feed end, and the reversal component is used for the installation of the reversal wheel.

[0016] According to the technical solution provided in the embodiment of the present application, the reversal component includes a mounting shaft passing through the two second side plates, and reversal brackets are installed at both ends of the mounting shaft along the first direction. A reversal shaft is rotatably connected between the bottom ends of the two reversal brackets, and the axis extension direction of the reversal shaft is the first direction. Each reversal wheel is evenly mounted on the reversal shaft, and the reversal shaft rotates counterclockwise synchronously with the third driven shaft through the transmission assembly.

[0017] According to the technical solution provided in the embodiment of the present application, a first torsion spring is mounted on one end of the mounting shaft, a connecting frame is provided between the first torsion spring and the second side plate, the extending direction of the connecting frame is perpendicular to the mounting shaft, one end of the first torsion spring is connected to the second side plate, and the other end is connected to the top surface of the connecting frame away from the mounting shaft end, a screw-type knob is installed on the connecting frame away from the mounting shaft end through threaded cooperation, a top block is provided at the position of the screw-type knob corresponding to the inner bottom surface of the upper box body, and the bottom end of the screw-type knob abuts against the top end of the top block.

[0018] According to the technical solution provided in the embodiment of the present application, an upper reinforcing steel is further provided between the two second side plates, and a paper pressing assembly is provided on the upper reinforcing steel near the reversing wheel end, and the paper pressing assembly is used to press the paper.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model is provided with a first paper discharge wheel which is higher than the paper feed platform, and a reversing wheel which is lower than the bottom surface of the upper box body. The reversing wheel limits the movement of the paper toward the paper discharge end. The rotation of the reversing wheel is similar to the twisting method of fingers, which keeps a single sheet of paper passing through and prevents the movement of the remaining paper, thereby reducing the situation of jamming or overlapping. Moreover, the upper box body and the main frame are rotatably connected. Even if jamming or overlapping occurs, the user can quickly open the upper box body and take out the paper, thereby ensuring that the paging feeder can work normally later, reducing downtime and improving usage efficiency. Furthermore, the paper feed conveyor belt for the paper feed is arranged below the reversing wheel. The paper feed gap between the bottom surface of the reversing wheel and the top surface of the paper feed conveyor belt is the thickness of a single sheet of paper, and only a single sheet of paper can pass through. The reversing wheel will push away other papers to ensure stable single-page paper transportation, which is equivalent to twisting both sides with fingers. In addition, a transmission component and a reversing component are provided, which not only ensure that the reversing wheel rotates counterclockwise synchronously with the first paper output wheel, but also adjust the gap between the bottom surface of the reversing wheel and the paper feed conveyor belt through the spring, the connecting frame, the screw knob and the top block, so that the user can adjust the paper feed gap according to the thickness of the single-page paper; further, a double-sheet detection mechanism is provided, which detects the paper passing between the upper box body and the paper feed platform through the ultrasonic transmitter, the transmission channel and the ultrasonic receiver, so that the user can timely understand whether double-sheeting or jamming occurs, and promptly open the upper box body to take out the paper, thereby improving the working efficiency of the paging device.

[0021] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0023] Figure 1 A schematic diagram of the structure of an automatic paging feeder provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a paper feeding mechanism in an automatic paging feeder provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the internal structure of an upper box in an automatic paging feeder provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the structure of a transmission component in an automatic paging feeder provided in an embodiment of the present application;

[0027] Figure 5 for Figure 3 A magnified image of area A;

[0028] Figure 6 A schematic diagram of the structure of a first torsion spring and a connecting block in an automatic paging feeder provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of a reversing wheel and a paper pressing board of an automatic paging feeder provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of a multi-sheet detection mechanism in an automatic paging feeder provided in an embodiment of the present application;

[0031] Fig. 9 A schematic cross-sectional structure diagram of a paper output end of an automatic paging paper feeder provided in an embodiment of the present application;

[0032] Fig.10 The figure is a schematic diagram of the structure of a paging feeder in the prior art.

[0033] Numbers in the figure:

[0034] 1. Main frame; 11. Paper feeding platform; 12. First side panel; 13. Paper output panel;

[0035] 2. Paper feeding mechanism; 21. Second driving member; 22. Paper feeding driving shaft; 23. First belt; 24. First driven shaft; 25. Second driven shaft; 26. Paper feeding transmission belt; 27. Second belt; 28. Paper feeding wheel;

[0036] 3. Paper discharging mechanism; 31. First driving member; 32. Paper discharging driving shaft; 33. Third belt; 34. Third driven shaft; 35. Fourth belt; 36. Driving gear; 37. First paper discharging wheel; 38. Auxiliary support shaft; 39. Second torsion spring;

[0037] 4. Reversal mechanism; 41. Upper box body;

[0038] 5. Installation frame; 51. Second side plate; 52. Upper reinforcing steel; 53. Lower connecting strip;

[0039] 6. Transmission assembly; 61. First transmission shaft; 62. First gear; 63. Second gear; 64. Second transmission shaft; 65. Third gear; 66. Fourth gear; 67. Fifth gear; 68. Sixth gear; 69. Seventh gear; 610. Reverse gear;

[0040] 7. Reversal assembly; 71. Mounting shaft; 72. Top block; 73. Reversal bracket; 74. Reversal shaft; 75. Reversal wheel; 76. Connecting frame; 77. First torsion spring; 78. Limiting plate; 79. Screw knob;

[0041] 8. Paper pressing assembly; 81. Paper pressing board; 82. First hanging plate; 83. Suspension shaft; 84. Spring; 85. Second hanging plate; 86. Ear plate; 87. Reversing wheel notch; 88. Paper pressing notch;

[0042] 9. Re-opening detection mechanism; 91. First through hole; 92. First mounting plate; 93. Ultrasonic transmitter; 94. Second mounting plate; 95. Ultrasonic receiver; 96. Third mounting plate; 97. Second through hole;

[0043] 101. Paper output driven shaft; 102. Second paper output wheel; 103. First paper output notch; 104. Second paper output notch; 105. Paper feed belt; 106. Paper output belt; 107. Pressing plate; 108. Adjusting screw. DETAILED DESCRIPTION

[0044] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0045] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] Please refer to Figures 1 to 9 , an embodiment of the utility model provides an automatic paging feeder, comprising:

[0047] The main frame 1 includes a paper feed platform 11 and first side panels 12 distributed on both sides of the paper feed platform 11 along a first direction. The main frame 1 has a paper feed end and a paper discharge end along a second direction. The first direction is perpendicular to the second direction. Figure 1 The front-to-back direction in the second direction is Figure 1 The front-to-back direction, such as Figure 1 As shown, the paper feed end is located at the right end of the paper feed platform 11, and the paper discharge end is located at the left end of the paper feed platform 11, and in order to facilitate the installation of the main frame 1, the paper feed platform 11 includes a paper feed board arranged on the right side, and a paper discharge board 13 arranged on the left side. In order to avoid the parts installed on the first side plate 12 from being exposed, sheet metal covers are arranged on the two sides away from the first side plates 12 to play a role in dust prevention and beauty;

[0048] The paper discharge mechanism 3 comprises a paper discharge drive shaft 32 arranged at the paper discharge end, the two ends of the paper discharge drive shaft 32 are rotatably connected to the two first side plates 12, the axis extension direction of the paper discharge drive shaft 32 is the first direction, and a plurality of first paper discharge wheels 37 are sleeved at equal distances in the middle of the paper discharge drive shaft 32, and the top of each of the first paper discharge wheels 37 is higher than the top surface of the paper feeding platform 11;

[0049] The reversing mechanism 4 is arranged above the paper discharge driving shaft 32, and includes an upper box body 41 rotatably connected to the main frame 1. A plurality of reversing wheels 75 are evenly distributed inside the upper box body 41 along the first direction. The axis extension direction of each reversing wheel 75 is the first direction. The bottom end of each reversing wheel 75 is lower than the bottom surface of the upper box body 41. The upper box body 41 has a first state and a second state. When in the first state, the bottom surface of the upper box body 41 is parallel to the top surface of the paper feeding platform 11. The reversing wheel 75 is used to limit multiple sheets of paper from passing through the bottom end of the reversing wheel 75 at the same time. When in the second state, the bottom plate of the upper box body 41 and the top surface of the paper feeding platform 11 have a first angle, and the first angle opens toward the paper feeding end. Fig. 9 As shown, a paper outlet passage is formed between the paper feed platform 11 and the ground of the upper box body 41, the reversing wheel 75 is located at the front end of the paper outlet passage, and the first paper outlet wheel 37 is located at the end of the paper outlet passage;

[0050] The first driving member 31 is disposed on one of the first side plates 12, and is used to drive the paper discharge driving shaft 32 to rotate, thereby driving the reverse wheel 75 to rotate counterclockwise synchronously. Figure 2 As shown, the first driving member 31 is a motor, and the output shaft of the motor is connected to the paper output driving shaft 32 via a third belt 33 .

[0051] The first paper output wheel 37 is higher than the paper feed platform 11, and the reversing wheel 75 is lower than the bottom surface of the upper box body 41. The reversing wheel 75 limits the movement of paper toward the paper output end. The rotation of the reversing wheel 75 is similar to the twisting method of fingers, which keeps a single sheet of paper passing through and prevents the movement of other papers, thereby reducing jamming or overlapping. Moreover, the upper box body 41 and the main frame 1 are rotatably connected. Even if jamming or overlapping occurs, the user can quickly open the upper box body 41 and take out the paper, thereby ensuring that the paging feeder can work normally later, reducing downtime and improving usage efficiency.

[0052] In some embodiments, a third driven shaft 34 is provided between the first side plate 12 and the upper box body 41, the upper box body 41 is rotatably connected to the main frame 1 via the third driven shaft 34, the paper discharge drive shaft 32 is connected to the third driven shaft 34 via a fourth belt 35, a transmission assembly 6 is provided on one side of the third driven shaft 34, and the transmission assembly 6 is used to drive the reversing wheel 75 to rotate counterclockwise synchronously when the third driven shaft 34 rotates;

[0053] like Figure 2 , Figure 3 and Figure 4 As shown, the upper box body 41 is rotated around the third driven shaft 34, and when the upper box body 41 is opened, the position of the third driven shaft 34 will not change, the transmission function of the transmission assembly 6 can be always maintained, and the paper between the upper box body 41 and the paper feeding platform 11 can be quickly processed without shutting down the machine. Optionally, only one end of the third driven shaft 34 is rotatably connected to one of the first side plates 12, and an auxiliary support shaft 38 coaxial with the third driven shaft 34 is provided between the other first side plate 12 and the upper box body 41. A second torsion spring 39 can be mounted on the auxiliary support shaft 38, one end of the second torsion spring 39 is connected to the upper box body 41, and the other end is connected to the main frame 1. The upper box body 41 is subjected to elastic stress, and its end away from the third driven shaft 34 is always close to the paper feeding platform 11. When there is no human power or other structural action, it will not be opened by itself, thereby ensuring the stable paper discharge of the first paper discharge wheel 37 and the purpose of the reversing wheel 75 to limit the passage of multiple pages of paper.

[0054] In some embodiments, the paper feeder further comprises a multi-sheet detection mechanism 9 for detecting the paper between the reverse wheel 75 and the first paper output wheel 37;

[0055] like Figure 8 and Fig. 9 As shown, the overlap detection mechanism 9 detects overlap, allowing the user to quickly understand whether overlap occurs without opening the upper box body 41, so that the user can quickly solve the overlap problem and improve the working efficiency of the paper feeder.

[0056] In some embodiments, the overlay detection mechanism 9 includes an ultrasonic transmitter 93 disposed in the upper box body 41, the ultrasonic transmitter 93 is used to release ultrasonic signals and is located between the reversing wheel 75 and the first paper discharge wheel 37, a propagation channel is provided at the bottom of the upper box body 41 and the top of the main frame 1, an ultrasonic receiver 95 is provided inside the main frame 1 at a position corresponding to the propagation channel, and the ultrasonic receiver 95 is used to receive the ultrasonic signal passing through the propagation channel;

[0057] like Figure 8 and Fig. 9 As shown, when overlap occurs, the ultrasonic signal received by the ultrasonic receiver 95 is different from the ultrasonic signal of normal paging, and then by writing a program in the corresponding terminal device, an alarm is issued to prompt the user whenever the signal is different, so that the overlap problem can be quickly solved. Among them, the program writing and the alarm method are existing technologies and are not described here. Optionally, a first through hole 91 is opened at the bottom end of the upper box body 41 corresponding to the position of the ultrasonic transmitter 93, and a second through hole 97 is opened at the top end of the paperboard 13 of the paper feeding platform 11 corresponding to the position of the first through hole 91. The first through hole 91 and the second through hole 97 constitute the propagation channel, which is the same as the propagation of the ultrasonic signal.

[0058] In some embodiments, a paper feeding mechanism 2 is provided at the middle of the top of the main frame 1, and the paper feeding mechanism 2 is provided on the side of the reversing wheel 75 away from the third driven shaft 34, and the paper feeding mechanism 2 is used to drive the paper to move from the paper feeding end to the paper discharging end;

[0059] like Figure 1 and Figure 2 As shown, the paper is driven by the paper feeding mechanism 2 so that the paper can enter and move under the reversing wheel 75. Compared with the prior art that only uses a single motor to feed and paginate paper, in this device, the problem of insufficient driving force is avoided through dual drive of paper feeding and paper discharge, and the purpose of controllable paper spacing is achieved, that is, according to subsequent paper demand, when the paper discharge mechanism 3 transports outward, the paper feeding mechanism 2 suspends paper feeding or reduces the paper feeding speed, thereby achieving the purpose of adjusting the paging spacing.

[0060] In some embodiments, the paper feeding mechanism 2 includes a paper feeding drive shaft 22 disposed below the reversing wheel 75, a first driven shaft 24 is disposed on the side of the paper feeding drive shaft 22 away from the paper discharging drive shaft 32, a second driven shaft 25 is disposed on the side of the first driven shaft 24 away from the paper discharging drive shaft 32, a paper feeding transmission belt 26 is sleeved between the paper feeding drive shaft 22 and the first driven shaft 24, a second belt 27 is sleeved between the first driven shaft 24 and the second driven shaft 25, a paper feeding wheel 28 is sleeved outside the first driven shaft 24 and the second driven shaft 25, and the top surfaces of the paper feeding transmission belt 26 and the paper feeding wheel 28 are both higher than the top surface of the paper feeding platform 11;

[0061] like Figure 2 and Figure 3As shown, a second driving member 21 is provided on one side of the first side plate 12, and the second driving member 21 is a motor. The output shaft end of the motor is connected to one end of the paper feed drive shaft 22 through the first belt 23. When the paper feed drive shaft 22 rotates, the first driven shaft 24 and the second driven shaft 25 are driven to rotate through the paper feed transmission belt 26 and the second belt 27. Therefore, the paper feed transmission belt 26 and the paper feed wheel 28 rotate counterclockwise synchronously, and the reverse wheel 75 is provided on the paper feed transmission belt 26. A paper feed gap is formed between the two, and the size of the paper feed gap is equal to the thickness of a single sheet of paper. Then, when the paper feed conveyor belt 26 feeds paper, the reversing wheel 75 will only drive the single sheet of paper to move toward the paper output end, similar to the way two fingers twist a stack of paper apart, thereby reducing the occurrence of overlapping sheets. In order to better demonstrate the twisting, it can be assumed that only two sheets of paper enter the paper feed gap. The counterclockwise rotation of the reversing wheel 75 will drive the upper layer of paper to move to the left, and the counterclockwise rotation of the paper feed conveyor belt 26 will drive the lower layer of paper to move to the right.

[0062] In some embodiments, a mounting frame 5 is further provided inside the upper box body 41, and the mounting frame 5 includes two second side panels 51 distributed along the first direction, and the two second side panels 51 are provided with a reversing assembly 7 near the paper feeding end, and the reversing assembly 7 is used for installing the reversing wheel 75;

[0063] like Figure 3 and Figure 4 As shown, the installation of the reversing wheel 75 is realized by the installation frame 5 and the reversing assembly 7, ensuring that the reversing wheel 75 remains stable during use. Figure 8 and Fig. 9 As shown, a lower connecting strip 53 is provided between the bottom ends of the two second side panels 51, a paper ejection driven shaft 101 is provided above the two second side panels 51 corresponding to the first paper ejection wheel 37, a second paper ejection wheel 102 is provided at the position of the paper ejection driven shaft 101 corresponding to the first paper ejection wheel 37, a second paper ejection notch 104 is provided at the upper box body 41 and the lower connecting strip 53 corresponding to the second paper ejection wheel 102, a first paper ejection notch 103 is provided at the top end of the paper feeding paperboard 13 of the paper feeding platform 11 corresponding to the position of the first paper ejection wheel 37, the top end of the first paper ejection wheel 37 passes through the first paper ejection notch 103, the bottom end of the second paper ejection wheel 102 passes through the second paper ejection notch 104, and the gap between the two is the paper ejection gap, and the static friction between the paper and the upper box body 41 is replaced by the rolling friction of the second paper ejection wheel 102, so as to improve the smoothness of paper movement and facilitate the final paper ejection.

[0064] In some embodiments, the reversing assembly 7 includes a mounting shaft 71 penetrating through the two second side plates 51, and reversing brackets 73 are installed at both ends of the mounting shaft 71 along the first direction, and a reversing shaft 74 is rotatably connected between the bottom ends of the two reversing brackets 73, and the axis extension direction of the reversing shaft 74 is the first direction, and each reversing wheel 75 is evenly mounted on the reversing shaft 74, and the reversing shaft 74 rotates counterclockwise synchronously with the third driven shaft 34 through the transmission assembly 6;

[0065] like Figure 3 and Figure 4 As shown, the reversal bracket 73 includes a horizontal section and a drooping section, the bottom end of the horizontal section is provided with a first slot, the installation shaft 71 is placed inside the first slot, the installation shaft 71 is provided with a second slot at a position corresponding to the first slot, the horizontal section of the reversal bracket 73 is provided with a screw hole at a position corresponding to the second slot, and a bolt is threadedly connected through the screw hole and abuts against the second slot to achieve the installation of the reversal bracket 73, thereby ensuring that the reversal bracket 73 and the reversal shaft 74 rotate synchronously in the same direction;

[0066] In some embodiments, Figure 4 and Figure 5 As shown, the transmission assembly 6 is installed on the mounting frame 5, and the transmission assembly 6 includes a first transmission shaft 61 and a second transmission shaft 64 that penetrate the two second side plates 51. One end of the third driven shaft 34 is sleeved with a driving gear 36, one end of the first transmission shaft 61 is sleeved with a first gear 62, and the first gear 62 is meshed with the driving gear 36. The other end of the first transmission shaft 61 is sleeved with a second gear 63, and one end of the second transmission shaft 64 is sleeved with a third gear 65, and the third gear 65 is meshed with the second gear 63. The second transmission shaft 6 The other end of the second side plate 51 is provided with a fourth gear 66, and the second side plate 51 near the fourth gear 66 is provided with a rotatable fifth gear 67, and the fifth gear 67 is meshed with the fourth gear 66. The sixth gear 68 is provided with a bearing at one end of the mounting shaft 71, and the sixth gear 68 is meshed with the fifth gear 67. The seventh gear 69 is provided at one end of the reversing bracket 73, and the reversing shaft 74 is provided with a reversing gear 610 at one end, and the reversing gear 610 and the sixth gear 68 are respectively meshed with the seventh gear 69, and the two do not contact each other, wherein, reference Figure 4, wherein the first gear 62 and the fourth gear 66 are input and output gears, the second gear 63 and the third gear 65 are reduction gears, that is, the second gear 63 has less teeth than the third gear 65, which plays a role in reducing the speed. In addition, the fifth gear 67 and the seventh gear 69 play a connecting role to avoid the adjacent gears being too large and causing interference with other positions. Therefore, these two gears are set to connect.

[0067] In some embodiments, a first torsion spring 77 is sleeved on one end of the installation shaft 71, a connecting frame 76 is provided between the first torsion spring 77 and the second side plate 51, and the extending direction of the connecting frame 76 is perpendicular to the installation shaft 71, one end of the first torsion spring 77 is connected to the second side plate 51, and the other end is connected to the end of the top surface of the connecting frame 76 away from the installation shaft 71, and a screw-type knob 79 is installed through the end of the connecting frame 76 away from the installation shaft 71 through threaded cooperation, and a top block 72 is provided at the position of the screw-type knob 79 on the inner bottom surface of the upper box body 41, and the bottom end of the screw-type knob 79 abuts against the top end of the top block 72;

[0068] like Figure 5 and Figure 6 As shown, through the action of the first torsion spring 77, the connecting frame 76 is always pressed downward away from the installation shaft 71, driving the installation shaft 71 and the reversing bracket 73 to always maintain a downward state, so as to adjust the distance between the bottom end of the reversing wheel 75 and the top end of the paper feeding conveyor belt 26, so as to facilitate the adjustment of the paper feeding gap according to the thickness of the paper, so that the reversing wheel 75 and the paper feeding conveyor belt 26 can convey paper of various thicknesses. Further, the screw-type knob 79 is turned to move the connecting frame 76 away from the top end of the installation shaft 71. , driving the mounting shaft 71 and the reversing bracket 73 to swing, adjusting the gap between the reversing wheel 75 and the paper, so as to better adapt to the paper of different thicknesses. Optionally, a limiting plate 78 is provided on one side of the second side plate 51 close to the first torsion spring 77, and the normal direction of the limiting plate 78 is perpendicular to the normal direction of the second side plate 51. The first torsion spring 77 is connected to the second side plate 51 through the limiting plate 78, ensuring that the first torsion spring 77 can provide stable elastic stress, and also facilitating the actual installation of the first torsion spring 77.

[0069] In some embodiments, an upper reinforcing steel 52 is further provided between the two second side plates 51, and a paper pressing assembly 8 is provided at the end of the upper reinforcing steel 52 close to the reversing wheel 75, and the paper pressing assembly 8 is used to press the paper;

[0070] like Figure 5 and Figure 7As shown, the paper pressing assembly 8 is equivalent to the pressing plate 107 of the prior art, but the reversing wheel 75 in the present device has been appropriately modified. The paper pressing assembly 8 includes a paper pressing notch 88 provided on the upper box body 41 and corresponding to the reversing wheel 75. A paper pressing paper 81 is provided in the paper pressing notch 88. A reversing wheel notch 87 for the reversing wheel 75 to pass through is provided in the middle of the paper pressing paper 81. The reversing wheel 75 contacts the paper through the reversing wheel notch 87. In addition, an ear plate 86 is provided near the end of the upper reinforcing steel 52. A spring 84 is installed in the hole of the ear plate 86. The bottom end of the upper reinforcing steel 52 A first hanging plate 82 extending downward is provided at the position corresponding to the ear plate 86, and the remaining end of the spring 84 is connected to the first hanging plate 82. A hanging shaft 83 is also provided between the two second side plates 51. A second hanging plate 85 extending upward is provided in the middle of the paper pressing plate 81, and the hanging shaft 83 penetrates the second hanging plate 85, and then the paper pressing plate 81 is pulled by the spring 84, and the paper pressing plate 81 swings around the hanging shaft 83, so that the paper pressing plate 81 is pressed down close to the end of the paper feeding mechanism 2 and passes through the paper pressing notch 88, thereby achieving the purpose of pressing the paper on the paper feeding platform 11; in addition, optionally, as Figure 8 and Fig. 9 As shown, the upper reinforcing steel 52 is provided with a third mounting plate 96 at the position corresponding to the ultrasonic transmitter 93, the ultrasonic transmitter 93 is mounted on the first mounting plate 92, the first mounting plate 92 is mounted on the third mounting plate 96 by means of bolts and nuts, a second mounting plate 94 is provided inside the main frame 1, and the ultrasonic receiver 95 is mounted on the second mounting plate 94.

[0071] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic paging feeder, characterized in that: include: A main frame (1) comprises a paper feeding platform (11) and first side panels (12) distributed on both sides of the paper feeding platform (11) along a first direction, the main frame (1) having a paper feeding end and a paper discharging end along a second direction, the first direction and the second direction being perpendicular to each other; The paper discharge mechanism (3) comprises a paper discharge drive shaft (32) arranged at the paper discharge end, the two ends of the paper discharge drive shaft (32) are rotatably connected to the two first side plates (12), the direction of the axis extension line of the paper discharge drive shaft (32) is a first direction, and a plurality of first paper discharge wheels (37) are sleeved at equal distances in the middle of the paper discharge drive shaft (32), and the top end of each of the first paper discharge wheels (37) is higher than the top surface of the paper feeding platform (11); A reversing mechanism (4) is arranged above the paper discharge drive shaft (32), comprising an upper box body (41) rotatably connected to the main frame (1), a plurality of reversing wheels (75) are evenly distributed inside the upper box body (41) along the first direction, the axis extension direction of each reversing wheel (75) is the first direction, the bottom end of each reversing wheel (75) is lower than the bottom surface of the upper box body (41), the upper box body (41) has a first state and a second state, when in the first state, the bottom surface of the upper box body (41) and the top surface of the paper feeding platform (11) are parallel, the reversing wheel (75) is used to limit multiple sheets of paper from passing through the bottom end of the reversing wheel (75) at the same time, when in the second state, the bottom plate of the upper box body (41) and the top surface of the paper feeding platform (11) have a first angle, and the opening of the first angle faces the paper feeding end; The first driving member (31) is arranged on one of the first side plates (12) and is used to drive the paper discharge driving shaft (32) to rotate, thereby driving the reverse wheel (75) to rotate counterclockwise synchronously.

2. The automatic page feeder according to claim 1, characterized in that: A third driven shaft (34) is provided between the first side plate (12) and the upper box body (41); the upper box body (41) is rotationally connected to the main frame (1) via the third driven shaft (34); the paper discharge drive shaft (32) and the third driven shaft (34) are transmission-connected via a fourth belt (35); a transmission assembly (6) is provided on one side of the third driven shaft (34); the transmission assembly (6) is used to drive the reversing wheel (75) to rotate counterclockwise synchronously when the third driven shaft (34) rotates.

3. The automatic page feeder according to claim 2, characterized in that: The paper feeder also includes a double-sheet detection mechanism (9) for detecting the paper located between the reverse wheel (75) and the first paper output wheel (37).

4. The automatic page feeder according to claim 3, characterized in that: The overlay detection mechanism (9) comprises an ultrasonic transmitter (93) arranged in the upper box body (41), the ultrasonic transmitter (93) is used to release ultrasonic signals and is located between the reversing wheel (75) and the first paper discharge wheel (37), a propagation channel is provided at the bottom of the upper box body (41) and the top of the main frame (1), an ultrasonic receiver (95) is provided inside the main frame (1) at a position corresponding to the propagation channel, and the ultrasonic receiver (95) is used to receive the ultrasonic signal passing through the propagation channel.

5. The automatic page feeder according to claim 2, characterized in that: A paper feeding mechanism (2) is provided at the middle of the top end of the main frame (1). The paper feeding mechanism (2) is provided on the side of the reversing wheel (75) away from the third driven shaft (34). The paper feeding mechanism (2) is used to drive the paper to move from the paper feeding end toward the paper discharging end.

6. The automatic page feeder according to claim 5, characterized in that: The paper feeding mechanism (2) comprises a paper feeding drive shaft (22) arranged below the reversing wheel (75); a first driven shaft (24) is arranged on the side of the paper feeding drive shaft (22) away from the paper discharging drive shaft (32); a second driven shaft (25) is arranged on the side of the first driven shaft (24) away from the paper discharging drive shaft (32); a paper feeding transmission belt (26) is arranged between the paper feeding drive shaft (22) and the first driven shaft (24); a second belt (33) is arranged between the first driven shaft (24) and the second driven shaft (25); paper feeding wheels (28) are arranged outside the first driven shaft (24) and the second driven shaft (25); and the top surfaces of the paper feeding transmission belt (26) and the paper feeding wheel (28) are both higher than the top surface of the paper feeding platform (11).

7. The automatic page feeder according to claim 3, characterized in that: A mounting frame (5) is also provided inside the upper box body (41), and the mounting frame (5) includes two second side panels (51) distributed along the first direction, and the two second side panels (51) are provided with a reversing assembly (7) near the paper feeding end, and the reversing assembly (7) is used for installing the reversing wheel (75).

8. The automatic sorting feeder according to claim 7, characterized in that: The reversing assembly (7) comprises a mounting shaft (71) penetrating the two second side plates (51); reversing brackets (73) are mounted on both ends of the mounting shaft (71) along the first direction; a reversing shaft (74) is rotatably connected between the bottom ends of the two reversing brackets (73); the axis extension direction of the reversing shaft (74) is the first direction; each of the reversing wheels (75) is evenly mounted on the reversing shaft (74); and the reversing shaft (74) rotates counterclockwise synchronously with the third driven shaft (34) through the transmission assembly (6).

9. The automatic collating feeder according to claim 8, characterized in that: A first torsion spring (77) is sleeved on one end of the installation shaft (71); a connecting frame (76) is provided between the first torsion spring (77) and the second side plate (51); the extending direction of the connecting frame (76) is perpendicular to the installation shaft (71); one end of the first torsion spring (77) is connected to the second side plate (51); the other end is connected to the end of the top surface of the connecting frame (76) away from the installation shaft (71); a screw-type knob (79) is installed through the end of the connecting frame (76) away from the installation shaft (71) through threaded cooperation; a top block (72) is provided on the bottom surface of the upper box body (41) at a position corresponding to the screw-type knob (79); the bottom end of the screw-type knob (79) abuts against the top end of the top block (72).

10. The automatic sorting feeder according to claim 7, characterized in that: An upper reinforcing steel (52) is also provided between the two second side plates (51), and a paper pressing assembly (8) is provided at the end of the upper reinforcing steel (52) close to the reversing wheel (75), and the paper pressing assembly (8) is used to press the paper.

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