Automatic paper dispenser
The automatic paper dispenser uses dual rollers and a reversing transmission mechanism to enhance paper extension and retraction accuracy, preventing blockage and jamming, and offers intelligent control for seamless operation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- GUANGZHOU FANER AROMA PROD CO
- Filing Date
- 2024-10-31
- Publication Date
- 2026-05-07
AI Technical Summary
Conventional manual and semi-automatic paper dispensers are complex to use, lack automatic dispensing capabilities, and are prone to paper blockage and jamming during paper extension and retraction.
An automatic paper dispenser with dual rollers - a paper discharging roller and a paper loading roller - driven by a reversing transmission mechanism, allowing separate control for extension and retraction, and equipped with sensors for intelligent paper length detection and control.
Improves the accuracy and stability of paper extension and retraction, effectively preventing paper blockage and jamming, while reducing energy consumption and manufacturing costs.
Smart Images

Figure CN2024129131_07052026_PF_FP_ABST
Abstract
Description
AUTOMATIC PAPER DISPENSERTECHNICAL FIELD
[0001] The present disclosure relates to the technical field of paper dispensing, and in particular, to an automatic paper dispenser.BACKGROUND
[0002] Conventional manual paper dispensers dispense a predetermined length of paper by hand pulling or pressing, which are complex in functional use, do not dispense papers automatically, and cannot calculate the length of the paper accurately. The semi-automatic paper dispensers currently available on the market releases a certain length of paper by a paper discharging device. When a detector detects an exposed paper, a sensor retracts the paper to its original length. The release and retraction of the paper are both performed by the paper discharging device positioned at a paper discharging port, and paper blockage and paper jam are easy to occur during actual use.SUMMARY
[0003] The present disclosure aims to solve at least one of the technical problems in the existing technology. To this end, the present disclosure provides an automatic paper dispenser, which solves paper blockage and paper jam.
[0004] The technical scheme adopted for solving the technical problem is as follows.
[0005] The present disclosure provides an automatic paper dispenser for dispensing rolled paper. The automatic paper dispenser includes:
[0006] a housing, provided with a paper discharging port and a paper roll placing area;
[0007] a paper discharging device, including a paper discharging roller arranged at the paper discharging port, where the paper discharging roller is configured to rotate to drive rolled paper to extend from the paper discharging port;
[0008] a paper receiving device, including a paper loading roller positioned at the paper roll placing area, where the paper loading roller is configured to be sleeved by the paper roll and rotate to drive the rolled paper to retract from the paper discharging port; and
[0009] a driving device, configured to drive the paper discharging roller and the paper loading roller to rotate.
[0010] The automatic paper dispenser according to the present disclosure has the following beneficial effects.
[0011] During use of the automatic paper dispenser, a paper roll is arranged in the paper roll placing area and fixedly sleeved on the paper loading roller; when rolled paper is dispensed, the paper discharging roller is driven to rotate by the driving device, and the rolled paper is driven to extend from the paper discharging port under the contact friction between the paper discharging roller and the rolled paper, so as to achieve the automatic extension of the rolled paper. When the rolled paper exposed outside the paper discharging port needs to be retracted, the paper loading roller is driven to rotate by the driving device, to drive the paper roll sleeved on the paper loading roller to rotate, thereby driving the rolled paper to retract from the paper discharging port to achieve the automatic retraction of the rolled paper. Compared with the existing method of using a single roller to perform the two actions described above, the automatic paper dispenser of the present disclosure performs extension and retraction of rolled paper by using a paper discharging roller and a paper loading roller respectively, which can improve the accuracy and stability of the extension and retraction of the rolled paper, and can effectively avoid paper blockage and paper jam during the extension and retraction process.
[0012] As a further improvement of the technical scheme, the driving device includes a reversing transmission mechanism and a rotation driving unit. The rotation driving unit is provided with a rotation output end, and the rotation output end is in transmission connection with the paper discharging roller and the paper loading roller by the reversing transmission mechanism. The reversing transmission mechanism is configured to provide a torque to the paper loading roller when the rotation output end is driven to rotate along a first rotation direction, and provide a torque to the paper discharging roller when the rotation output end is driven to rotate along a second rotation direction.
[0013] As a further improvement of the technical scheme, the reversing transmission mechanism includes a driving gear, a first driven gear, a second driven gear, a first movable gear, and a second movable gear. The driving gear is connected to the rotation output end, the first driven gear is connected to the paper loading roller, the second driven gear is connected to the paper discharging roller, the first movable gear and the second movable gear are annularly arranged at an interval on an outer peripheral side of the driving gear and are engaged with the driving gear, the first movable gear and the second movable gear are movably arranged relative to the driving gear along a circular arc track with a center of the driving gear as a circle center, the first movable gear is configured to engage between the first driven gear and the driving gear when the rotation output end is driven to rotate along the first rotation direction, and the second movable gear is configured to engage between the second driven gear and the driving gear when the rotation output end is driven to rotate along the second rotation direction.
[0014] As a further improvement of the technical scheme, the reversing transmission mechanism further includes a first circular arc track and a second circular arc track with the center of the driving gear as a circle center. The first movable gear is rotatably and slidably connected to the first circular arc track, and the second movable gear is rotatably and slidably connected to the second circular arc track.
[0015] As a further improvement of the technical scheme, the reversing transmission mechanism includes a fixed plate. The first movable gear and the second movable gear are clamped between the fixed plate and a wall of the housing, the fixed plate and the wall of the housing are each provided with the first circular arc track and the second circular arc track, two ends of the first movable gear are respectively connected to the first circular arc tracks on two sides, and two ends of the second movable gear are respectively connected to the second circular arc tracks on two sides.
[0016] As a further improvement of the technical scheme, the first movable gear includes a first pinion and a first wheel which are coaxially and fixedly connected, the first pinion is engaged with the first driven gear, and the first wheel is engaged with the driving gear; and
[0017] the second movable gear includes a second pinion and a second wheel which are coaxially and fixedly connected, the second pinion is engaged with the second driven gear, and the second wheel is engaged with the driving gear.
[0018] As a further improvement of the technical scheme, the paper discharging device further includes an angle encoder for detecting a rotation angle of the second driven gear.
[0019] As a further improvement of the technical scheme, the paper discharging device further includes a paper pressing mechanism. The paper pressing mechanism includes a paper pressing roller and a paper pressing elastic structure, the paper pressing roller and the paper discharging roller are arranged opposite to each other in parallel, and the paper pressing elastic structure is configured to enable the paper pressing roller and the paper discharging roller to be close to each other.
[0020] As a further improvement of the technical scheme, the housing is provided with a cover that is capable of being opened and closed, the paper discharging port is formed between the cover and the housing, and the paper pressing mechanism is mounted on the cover.
[0021] As a further improvement of the technical scheme, the automatic paper dispenser further includes a paper discharging trigger sensor and a paper receiving trigger sensor respectively connected to the driving device. The paper discharging trigger sensor is configured to detect external paper discharging information to trigger the driving device to drive the paper discharging roller to rotate, so as to drive the rolled paper to extend from the paper discharging port, and the paper receiving trigger sensor is configured to detect a length of the rolled paper exposed from the paper discharging port to trigger the driving device to drive the paper loading roller to rotate, so as to drive the rolled paper to retract from the paper discharging port.
[0022] Other features and advantages of the present disclosure will be described in the description below, and will be partly apparent from the description or may be understood by implementing the present disclosure.BRIEF DESCRIPTION OF DRAWINGS
[0023] The present disclosure is further described below with reference to the accompanying drawings and embodiments.
[0024] FIG. 1 is a sectional view of an automatic paper dispenser according to an embodiment of the present disclosure;
[0025] FIG. 2 is a schematic diagram of the bottom of the automatic paper dispenser according to an embodiment of the present disclosure;
[0026] FIG. 3 is a schematic diagram of the interior of the automatic paper dispenser with a cover opened according to an embodiment of the present disclosure;
[0027] FIG. 4 is an exploded view of a reversing transmission mechanism according to an embodiment of the present disclosure;
[0028] FIG. 5 is a schematic diagram of transmission of the reversing transmission mechanism when rolled paper is extended according to an embodiment of the present disclosure;
[0029] FIG. 6 is a schematic diagram of transmission of the reversing transmission mechanism when the rolled paper is retracted according to an embodiment of the present disclosure; and
[0030] FIG. 7 is an exploded view of a paper pressing mechanism of the automatic paper dispenser with the cover opened according to an embodiment of the present disclosure.
[0031] Reference numerals:
[0032] 100: housing; 110: paper discharging port; 120: paper roll placing area; 130: clamp groove; 140: cover;
[0033] 200: paper discharging device; 210: paper discharging roller; 220: angle encoder; 230: paper pressing mechanism; 231: paper pressing roller; 232: mounting sliding clamp; 233: spring;
[0034] 300: paper receiving device; 310: paper loading roller;
[0035] 400: driving device; 410: reversing transmission mechanism; 411: driving gear; 412: first driven gear; 413: second driven gear; 4131: detection hole position; 414: first movable gear; 415: second movable gear; 416: first circular arc track; 417: second circular arc track; 418: fixed plate; 420: rotation driving unit;
[0036] 500: paper discharging trigger sensor; and
[0037] 600: paper receiving trigger sensor.DETAILED DESCRIPTION
[0038] This section will give a detailed description of some embodiments of the present disclosure. Preferred embodiments of the present disclosure are shown in the accompanying drawings. The function of the accompanying drawings is to use drawings to supplement the description of the text part of the specification, such that those having ordinary skills in the art can intuitively and vividly understand each technical feature and the overall technical scheme of the present disclosure, but the accompanying drawings are not intended to be construed as limiting the scope of protection of the present disclosure.
[0039] In the description of the present disclosure, it should be understood that for the description of orientations, the orientation or positional relationships indicated by the terms such as “up” , “down” , “front” , “rear” , “left” , and “right” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned device or element should have a particular orientation or must be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of the present disclosure.
[0040] It should be understood that in the description of the embodiments of the present disclosure, the term “at least one” means one or more, the term “plurality of” (or multiple) means two or more, the term such as “greater than” , “less than” , “exceed” or variants thereof prior to a number or series of numbers is understood to not include the number adjacent to the term. The term “at least” prior to a number or series of numbers is understood to include the number adjacent to the term “at least” , and all subsequent numbers or integers that could logically be included, as clear from context.
[0041] In the description of the present disclosure, unless otherwise explicitly defined, the terms such as “configure” , “install / mount” and “connect” should be understood in a broad sense, and those having ordinary skills in the art can reasonably determine the specific meanings of the above terms in the present disclosure based on the specific contents of the technical scheme.
[0042] Currently in the field of paper dispensing, there are manual paper dispensers and semi-automatic paper dispensers. The manual paper dispenser dispenses a predetermined length of paper by hand pulling or pressing, which has disadvantages of complex functional use, no automatic dispensing of papers, and failure to accurately calculate the length of paper. The semi-automatic paper dispenser dispenses a paper that is extended to a certain length by an inductive sensor, when a detector detects the exposed paper, the sensor retracts the paper to its original length, and the extension and retraction of the paper are performed by a paper discharging device 200 positioned at a paper discharging port 110. It may be understood that the existing semi-automatic paper dispenser performs the extension and retraction of the paper by using a single performing mechanism, and the paper blockage and paper jam are prone to occur during the extension or retraction of the paper.
[0043] In view of the above, the present disclosure provides an automatic paper dispenser for dispensing rolled paper, which can effectively solve the paper blockage and paper jam occurring during the extension or retraction of the paper.
[0044] As shown in FIG. 1, the automatic paper dispenser according to an embodiment of the present disclosure includes a housing 100, a paper discharging device 200, a paper receiving device 300, and a driving device 400.
[0045] As shown in FIG. 1 and FIG. 2, the housing 100 is provided with a paper discharging port 110 and a paper roll placing area 120. The paper discharging port 110 in this embodiment is arranged at the bottom of the housing 100, the paper discharging port 110 is in a strip shape, and the paper discharging port 110 is arranged in a left-right direction. In some other embodiments, the paper discharging port 110 may be arranged at other sides of the housing 100, and may be in other shapes.
[0046] The paper roll placing area 120 is positioned inside the housing 100 and is used to place a paper roll, and the paper discharging port 110 is communicated with the paper roll placing area 120. When in use, the rolled paper on the paper roll is pulled to the paper discharging port 110.
[0047] As shown in FIG. 1 and FIG. 3, the paper receiving device 300 according to an embodiment of the present disclosure includes a paper loading roller 310 arranged in the paper roll placing area 120. The paper loading roller 310 is configured to be fixedly sleeved by the paper roll, and is rotatably arranged around its axis relative to the housing 100. When in use, the paper roll is fixedly sleeved outside the paper loading roller 310, and the paper roll is driven to rotate by rotation of the paper loading roller 310, so as to drive the rolled paper to retract from the paper discharging port 110.
[0048] The paper loading roller 310 extends left and right to match the paper discharging port 110, such that the paper roll is arranged in the left-right direction in the paper roll placing area 120 when assembled. In some other embodiments, the paper loading roller 310 may extend in other directions.
[0049] As shown in FIG. 1 and FIG. 3, the paper discharging device 200 includes a paper discharging roller 210 arranged at the paper discharging port 110. The paper discharging roller 210 according to an embodiment of the present disclosure extends left and right and is arranged inside the paper discharging port 110. The paper discharging roller 210 is rotatably arranged around its axis relative to the housing 100, and left and right ends of the paper discharging roller 210 are rotatably connected to the housing 100. When in use, the rolled paper abuts against the outer periphery of the paper discharging roller 210, and the rolled paper is driven to extend from the paper discharging port 110 by rotation of the paper discharging roller 210 under the friction between the rolled paper and the paper discharging roller 210.
[0050] In some other embodiments, the paper discharging roller 210 may be extended in other directions.
[0051] As shown in FIG. 3, to increase the friction between the paper discharging roller 210 and the rolled paper, in an embodiment of the present disclosure, a plurality of friction sleeves 211 are sleeved on the paper discharging roller 210, and the paper discharging roller 210 contacts the rolled paper by the plurality of friction sleeves 211, such that the paper discharging is smoother, and paper slipping is avoided.
[0052] The driving device 400 according to an embodiment of the present disclosure is configured to drive the paper discharging roller 210 and the paper loading roller 310 to rotate. When the rolled paper is extended, the driving device 400 drives the paper discharging roller 210 to rotate alone, and when the rolled paper is retracted, the driving device 400 drives the paper loading roller 310 to rotate alone.
[0053] Furthermore, when rolled paper is dispensed, the paper discharging roller 210 is driven to rotate by the driving device 400, and the rolled paper is driven to extend from the paper discharging port 110 under the contact friction between the paper discharging roller 210 and the rolled paper, so as to achieve the automatic extension of the rolled paper. When the rolled paper exposed outside the paper discharging port 110 needs to be retracted, the paper loading roller 310 is driven to rotate by the driving device 400, so as to drive the paper roll sleeved on the paper loading roller 310 to rotate, thereby driving the rolled paper to retract from the paper discharging port 110 to achieve the automatic retraction of the rolled paper.
[0054] Compared with the existing method of using a single performing mechanism to perform the two actions described above, in the present disclosure, the extension and retraction of rolled paper are performed using the paper discharging roller 210 and the paper loading roller 310 respectively, which can improve the accuracy and stability of the extension and retraction of the rolled paper, and can effectively avoid paper blockage and paper jam during the extension and retraction process.
[0055] In some embodiments, the driving device 400 may be provided with two power sources to be respectively in transmission connection with the paper discharging roller 210 and the paper loading roller 310, where one power source drives the paper discharging roller 210 to rotate, and the other power source drives the paper loading roller 310 to rotate. However, the two power sources occupy a large space, and have high energy consumption and high manufacturing cost.
[0056] The driving device 400 according to an embodiment of the present disclosure uses one power source to separately drive the paper discharging roller 210 and the paper loading roller 310.
[0057] The driving device 400 according to an embodiment of the present disclosure includes a reversing transmission mechanism 410 and a rotation driving unit 420. The driving device 400 is mounted on one side of the housing 100. The rotation driving unit 420 has a rotation output end, and the rotation driving unit 420 of this embodiment uses a motor. In some other embodiments, the rotation driving unit 420 may use a servo motor.
[0058] As shown in FIG. 4, the rotation output end of the rotation driving unit 420 according to an embodiment of the present disclosure is in transmission connection with the paper discharging roller 210 and the paper loading roller 310 by the reversing transmission mechanism 410. The reversing transmission mechanism 410 is configured to provide a torque to the paper loading roller 310 when the rotation output end is driven to rotate along a first rotation direction, and provide a torque to the paper discharging roller 210 when the rotation output end is driven to rotate along a second rotation direction. It may be understood that when the rolled paper needs to be retracted, the rotation output end of the rotation driving unit 420 is controlled to rotate along the first rotation direction, and the reversing transmission mechanism 410 transmits the torque of the rotation driving unit 420 to the paper loading roller 310 to drive the paper loading roller 310 to rotate, so as to drive the rolled paper to retract. In this case, there is no torque transmission between the rotation driving unit 420 and the paper discharging roller 210. When the rolled paper needs to be extended, the rotation output end of the rotation driving unit 420 is controlled to rotate along the second rotation direction, the reversing transmission mechanism 410 transmits the torque of the rotation driving unit 420 to the paper discharging roller 210 to drive the paper discharging roller 210 to rotate, so as to drive the rolled paper to extend. In this case, there is no torque transmission between the rotation driving unit 420 and the paper loading roller 310.
[0059] In the present disclosure, the extension and retraction of the rolled paper are respectively achieved by the forward and reverse driving of the rotation driving unit 420, such that the paper dispenser has a more compact structure, and the manufacturing cost can be reduced.
[0060] For the specific structure of the reversing transmission mechanism 410, as shown in FIGs. 4, 5, and 6, the reversing transmission mechanism 410 of this embodiment includes a driving gear 411, a first driven gear 412, a second driven gear 413, a first movable gear 414, and a second movable gear 415. The driving gear 411 is connected to the rotation output end. The first driven gear 412 is coaxially connected to one end of the paper loading roller 310. The second driven gear 413 is connected to one end of the paper discharging roller 210. The first movable gear 414 and the second movable gear 415 are annularly arranged at an interval on an outer peripheral side of the driving gear 411, and are engaged with the driving gear 411. The first movable gear 414 and the second movable gear 415 are movably arranged relative to the driving gear 411 along a circular arc track with the center of the driving gear 411 as a circle center. It may be understood that the first movable gear 414 and the second movable gear 415 slide along the circular arc track relative to the housing 100.
[0061] In an embodiment of the present disclosure, the first movable gear 414 is arranged between the first driven gear 412 and the driving gear 411. The first movable gear 414 is configured to engage between the first driven gear 412 and the driving gear 411 when the rotation output end is driven to rotate along the first rotation direction, so as to achieve torque transmission between the rotation output end and the paper loading roller 310.
[0062] In an embodiment of the present disclosure, the second movable gear 415 is arranged between the second driven gear 413 and the driving gear 411. The second movable gear 415 is configured to engage between the second driven gear 413 and the driving gear 411 when the rotation output end is driven to rotate along the second rotation direction, so as to achieve torque transmission between the rotation output end and the paper discharging roller 210.
[0063] It may be understood that, as shown in FIG. 5, when the rotation output end is driven to rotate along the first rotation direction, the first movable gear 414 and the second movable gear 415 move along the circular arc track in the first rotation direction following the driving gear 411. The first movable gear 414 moves to be between the first driven gear 412 and the driving gear 411 and is engaged with the first driven gear 412 and the driving gear 411, and the second movable gear 415 is disengaged from the second driven gear 413. As shown in FIG. 6, when the rotation output end is driven to rotate along the second rotation direction, the first movable gear 414 and the second movable gear 415 move along the circular arc track in the second rotation direction following the driving gear 411. The second movable gear 415 moves to be between the second driven gear 413 and the driving gear 411 and is engaged with the second driven gear 413 and the driving gear 411, and the first movable gear 414 is disengaged from the first driven gear 412.
[0064] Further, the reversing transmission mechanism 410 in this embodiment further includes a first circular arc track 416 and a second circular arc track 417 with the center of the driving gear 411 as a circle center. The first circular arc track 416 and the second circular arc track 417 are annularly arranged at an interval, with the first circular arc track 416 being arranged between the first driven gear 412 and the driving gear 411, and the second circular arc track 417 being arranged between the second driven gear 413 and the driving gear 411. The first movable gear 414 is rotatably and slidably connected to the first circular arc track 416, and the second movable gear 415 is rotatably and slidably connected to the second circular arc track 417.
[0065] In the embodiment of the present disclosure, the movement of the first movable gear 414 is limited by the first circular arc track 416, and a working position and a separating position of the first movable gear 414 are defined. As shown in FIG. 5, when the first movable gear 414 moves to one end of the first circular arc track 416 along the first rotation direction, the first movable gear 414 is in the working position, and the first movable gear 414 is engaged with the first driven gear 412 and the driving gear 411; and when the first movable gear 414 moves to the other end of the first circular arc track 416 along the second rotation direction, the first movable gear 414 is in the separating position, and the first movable gear 414 is disengaged from the first driven gear 412.
[0066] The second circular arc track 417 acts on the second movable gear 415 in the same way as the first circular arc track 416 acts on the first movable gear 414, as shown in FIG. 6.
[0067] In addition, the reversing transmission mechanism 410 according to an embodiment of the present disclosure further includes a fixed plate 418. The first movable gear 414 and the second movable gear 415 are clamped between the fixed plate 418 and a wall of the housing 100. The fixed plate 418 and the wall of the housing 100 are each provided with a first circular arc track 416 and a second circular arc track 417. Two ends of the first movable gear 414 are slidably connected to the first circular arc tracks 416 on two sides respectively, and two ends of the second movable gear 415 are slidably connected to the second circular arc tracks 417 on two sides respectively. In this way, the stability of the movement of the first movable gear 414 and the second movable gear 415 can be improved.
[0068] As shown in FIG. 4, in an embodiment of the present disclosure, the first movable gear 414 includes a first pinion and a first wheel which are coaxially and fixedly connected. The first pinion is engaged with the first driven gear 412, and the first wheel is engaged with the driving gear 411. The second movable gear 415 includes a second pinion and a second wheel which are coaxially and fixedly connected. The second pinion is engaged with the second driven gear 413, and the second wheel is engaged with the driving gear 411. In this way, the effect of variable transmission can be achieved.
[0069] In some embodiments, the reversing transmission mechanism 410 may include two unidirectional transmission wheels. A unidirectional shaft is arranged in the unidirectional transmission wheel to achieve transmission of unidirectional torque. The rotation transmission directions of the two unidirectional transmission wheels are arranged to be opposite. The two unidirectional transmission wheels are respectively connected to the paper discharging roller 210 and the paper loading roller 310, and the rotation output end of the rotation driving unit 420 is in transmission connection with the two unidirectional transmission wheels. In this way, independent driving of the paper discharging roller 210 and the paper loading roller 310 can be achieved through forward and reverse driving of the rotation driving unit 420 respectively, so as to achieve extension and retraction of the rolled paper.
[0070] As shown in FIG. 4, the paper discharging device 200 according to an embodiment of the present disclosure further includes an angle encoder 220 for detecting a rotation angle of the second driven gear 413. The rotation angle of the paper discharging roller 210 when the paper roll is driven to extend is indirectly obtained by detecting the rotation angle of the second driven gear 413, and the extension length of the rolled paper is obtained by calculation. Since the paper discharging roller 210 may rotate when the paper is retracted, the paper discharging length can be accurately detected by detecting the second driven gear 413 with the angle encoder 220 in the embodiment of the present disclosure.
[0071] In the embodiment of the present disclosure, a plurality of detecting hole positions 4131 are uniformly distributed in the second driven gear 413 in an annular manner, and the plurality of detecting hole positions 4131 are arranged opposite to the angle encoder 220.
[0072] As shown in FIG. 1 and FIG. 7, the paper discharging device 200 according to an embodiment of the present disclosure further includes a paper pressing mechanism 230. The paper pressing mechanism 230 includes a paper pressing roller 231 and a paper pressing elastic structure. The paper pressing roller 231 and the paper discharging roller 210 are arranged opposite to each other in parallel, and the paper pressing elastic structure is configured to enable the paper pressing roller 231 and the paper discharging roller 210 to be close to each other. In this embodiment, an elastic trend of mutual approaching is formed between the paper pressing roller 231 and the paper discharging roller 210 by the paper pressing elastic structure, so as to press the rolled paper between the paper pressing roller 231 and the paper discharging roller 210. In this way, when the paper discharging roller 210 rotates, the friction between the paper discharging roller 210 and the rolled paper can be increased to ensure that the rolled paper can be driven to be output.
[0073] In an embodiment of the present disclosure, the two ends of the paper pressing roller 231 are each provided with mounting sliding clamps 232. The housing 100 is provided with clamp grooves 130 corresponding to the mounting sliding clamps 232, and the paper pressing roller 231 is mounted on the housing 100 by the mounting sliding clamps 232. The paper pressing elastic structure includes a spring 233 acting between the mounting sliding clamp 232 and the clamp groove 130 to achieve elastic buffering of the paper pressing roller 231, which facilitates mounting. In this case, the paper pressing elastic structure provides the paper pressing roller 231 with an elastic force towards the paper discharging roller 210.
[0074] Further, as shown in FIGs. 1, 2, and 7, the housing 100 of this embodiment is provided with a cover 140 that can be opened and closed. The cover 140 is arranged at the front side of the housing 100. The paper discharging port 110 is formed at the bottom between the cover 140 and the housing 100. The paper pressing mechanism 230 is mounted on the cover 140, and the clamp grooves 130 are also arranged on the cover 140, to facilitate loading of the paper roll. When the rolled paper is used up, the cover 140 is opened, and the paper pressing roller 231 is opened along with the cover 140. The paper pressing roller 231 is separated from the paper discharging roller 210, and the paper roll is placed to the paper roll placing area 120 and sleeved on the paper discharging roller 210. Then, the cover 140 is closed. In this case, the paper pressing roller 231 presses the rolled paper against the paper discharging roller 210.
[0075] In this embodiment, an upper end of the cover 140 is hinged to the housing 100, and the opening and closing of the cover 140 are achieved by flipping up and down, which is convenient to operate.
[0076] In addition, as shown in FIG. 1 and FIG. 2, according to an embodiment of the present disclosure, the automatic paper dispenser further includes a paper discharging trigger sensor 500 and a paper receiving trigger sensor 600 which are in signal connection with the driving device 400.
[0077] The paper discharging trigger sensor 500 is configured to detect external paper discharging information to trigger the driving device 400 to drive the paper discharging roller 210 to rotate, so as to drive the rolled paper to extend from the paper discharging port 110. The paper discharging trigger sensor 500 may be gesture-sensitive or voice-sensitive. When in use, the paper discharging trigger sensor 500 senses an external gesture or sound to trigger the activation of the rotation driving unit 420. When the paper discharging trigger sensor 500 senses an external hand movement, the rotation driving unit 420 is driven to rotate along the second rotation direction, so as to drive the paper discharging roller 210 to rotate, and the rolled paper is extended according to the preset length. The paper discharging trigger sensor 500 of this embodiment is arranged at the bottom of the housing 100 and is positioned beside the paper discharging port 110 to facilitate paper taking. In other embodiments, the paper discharging trigger sensor may be arranged at other positions.
[0078] The paper receiving trigger sensor 600 is configured to detect a length of the rolled paper exposed from the paper discharging port 110 to trigger the driving device 400 to drive the paper loading roller 310 to rotate, so as to drive the rolled paper to retract from the paper discharging port 110. During use, after the paper is taken, a part of the rolled paper is exposed, which may cause cross infection or get splashed. In the embodiment of the present disclosure, the paper receiving trigger sensor 600 detects the length of the rolled paper exposed from the paper discharging port 110. When the exposed length reaches a first preset length or after a certain time, the driving device 400 is triggered to drive the paper loading roller 310 to rotate, so as to drive the rolled paper to retract from the paper discharging port 110 to a set position. In this case, the paper receiving trigger sensor 600 is further configured to detect a retracted position of the rolled paper to ensure that the rolled paper is retracted into place. Then, the next time the paper is discharged, the length of the rolled paper extended is measured based on the retracted position of the rolled paper.
[0079] The paper dispenser according to the present disclosure can achieve intelligent control and provide a more concise and humanized functional use experience, the accuracy and the stability of the extension and retraction of the paper are improved to avoid paper blockage and paper jam, and the energy loss is reduced.
[0080] The above preferred embodiments of the present disclosure are described in detail, but the present disclosure is not limited to these embodiments. Those having ordinary skills in the art can also make various equivalent changes or substitutions without departing from the protection scope of the present disclosure, and such equivalent changes or substitutions are all included in the scope defined by the claims of the present disclosure.
Claims
1.An automatic paper dispenser for dispensing rolled paper, comprising:a housing, provided with a paper discharging port and a paper roll placing area;a paper discharging device, comprising a paper discharging roller arranged at the paper discharging port, wherein the paper discharging roller is configured to rotate to drive rolled paper to extend from the paper discharging port;a paper receiving device, comprising a paper loading roller positioned at the paper roll placing area, wherein the paper loading roller is configured to be sleeved by the paper roll and rotate to drive the rolled paper to retract from the paper discharging port; anda driving device, configured to drive the paper discharging roller and the paper loading roller to rotate.2.The automatic paper dispenser of claim 1, wherein:the driving device comprises a reversing transmission mechanism and a rotation driving unit, the rotation driving unit is provided with a rotation output end, the rotation output end is in transmission connection with the paper discharging roller and the paper loading roller by the reversing transmission mechanism, and the reversing transmission mechanism is configured to provide a torque to the paper loading roller when the rotation output end is driven to rotate along a first rotation direction, and provide a torque to the paper discharging roller when the rotation output end is driven to rotate along a second rotation direction.3.The automatic paper dispenser of claim 2, wherein:the reversing transmission mechanism comprises a driving gear, a first driven gear, a second driven gear, a first movable gear, and a second movable gear, the driving gear is connected to the rotation output end, the first driven gear is connected to the paper loading roller, the second driven gear is connected to the paper discharging roller, the first movable gear and the second movable gear are annularly arranged at an interval on an outer peripheral side of the driving gear and are engaged with the driving gear, the first movable gear and the second movable gear are movably arranged relative to the driving gear along a circular arc track with a center of the driving gear as a circle center, the first movable gear is configured to engage between the first driven gear and the driving gear when the rotation output end is driven to rotate along the first rotation direction, and the second movable gear is configured to engage between the second driven gear and the driving gear when the rotation output end is driven to rotate along the second rotation direction.4.The automatic paper dispenser of claim 3, wherein:the reversing transmission mechanism further comprises a first circular arc track and a second circular arc track with the center of the driving gear as a circle center, the first movable gear is rotatably and slidably connected to the first circular arc track, and the second movable gear is rotatably and slidably connected to the second circular arc track.5.The automatic paper dispenser of claim 4, wherein:the reversing transmission mechanism comprises a fixed plate, the first movable gear and the second movable gear are clamped between the fixed plate and a wall of the housing, the fixed plate and the wall of the housing are each provided with the first circular arc track and the second circular arc track, two ends of the first movable gear are respectively connected to the first circular arc tracks on two sides, and two ends of the second movable gear are respectively connected to the second circular arc tracks on two sides.6.The automatic paper dispenser of claim 3, wherein:the first movable gear comprises a first pinion and a first wheel which are coaxially and fixedly connected, the first pinion is engaged with the first driven gear, and the first wheel is engaged with the driving gear; andthe second movable gear comprises a second pinion and a second wheel which are coaxially and fixedly connected, the second pinion is engaged with the second driven gear, and the second wheel is engaged with the driving gear.7.The automatic paper dispenser of claim 3, wherein:the paper discharging device further comprises an angle encoder for detecting a rotation angle of the second driven gear.8.The automatic paper dispenser of claim 1, wherein:the paper discharging device further comprises a paper pressing mechanism, the paper pressing mechanism comprises a paper pressing roller and a paper pressing elastic structure, the paper pressing roller and the paper discharging roller are arranged opposite to each other in parallel, and the paper pressing elastic structure is configured to enable the paper pressing roller and the paper discharging roller to be close to each other.9.The automatic paper dispenser of claim 8, wherein:the housing is provided with a cover which is capable of being opened and closed, the paper discharging port is formed between the cover and the housing, and the paper pressing mechanism is mounted on the cover.10.The automatic paper dispenser of claim 1, wherein:the automatic paper dispenser further comprises a paper discharging trigger sensor and a paper receiving trigger sensor respectively connected to the driving device, the paper discharging trigger sensor is configured to detect external paper discharging information to trigger the driving device to drive the paper discharging roller to rotate, so as to drive the rolled paper to extend from the paper discharging port, and the paper receiving trigger sensor is configured to detect a length of the rolled paper exposed from the paper discharging port to trigger the driving device to drive the paper loading roller to rotate, so as to drive the rolled paper to retract from the paper discharging port.
Citation Information
Patent Citations
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