Double-roll tissue delivery mechanism and tissue machine

Abstract

The utility model discloses a double-roll tissue delivery mechanism and a tissue machine, the mechanism comprises two tissue delivery assemblies and a driving assembly, the tissue delivery assemblies comprise tissue delivery rollers used for driving tissue to be output through rotation; the driving assembly comprises a first one-way transmission wheel, a second one-way transmission wheel, a transmission set and a rotary driving unit, the first one-way transmission wheel is coaxially connected with one paper outlet roller and is configured to provide rotating torque for the paper outlet roller in the first rotating direction, and the second one-way transmission wheel is coaxially connected with the other paper outlet roller and is configured to provide rotating torque for the paper outlet roller in the second rotating direction. The second one-way transmission wheel is configured to provide rotating torque for the paper outlet roller in the second rotating direction, and the rotating output end of the rotating driving unit is in transmission connection with the first one-way transmission wheel and the second one-way transmission wheel through a transmission set. Switching driving paper delivery of the two paper delivery assemblies can be achieved only by controlling the rotation driving direction of the rotation output end of the rotation driving unit, and therefore the requirement of the double-roll paper towel machine is met.

Description

Technical Field

[0001] The utility model relates to the technical field of paper towel distribution, in particular to a double-roll paper towel dispensing mechanism and a paper towel machine. Background Art

[0002] A tissue dispenser is one of the commonly used equipment in bathrooms, which is used to provide tissues to users. Traditional tissue dispensers can generally only load one roll of tissue, and need to be frequently loaded when in use. Now there are some double-roll tissue dispensers on the market, which can store two rolls of tissue at a time, with one roll as a spare to avoid inconvenience. In addition, current double-roll tissue dispensers are equipped with automatic paper output mechanisms to achieve automatic output of tissues. However, current automatic paper output mechanisms have the following problems: a complex transmission structure and an enlarged volume, which results in a large overall volume of the tissue dispenser and also increases the manufacturing cost. Utility Model Content

[0003] The utility model aims to provide a double-roll paper towel discharging mechanism to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] According to a first aspect of an embodiment of the utility model, a double-roll paper towel dispensing mechanism comprises:

[0005] There are two paper discharging assemblies, each of which includes a paper discharging roller for driving the paper towel to be discharged by rotating;

[0006] The driving assembly includes a first one-way transmission wheel, a second one-way transmission wheel, a transmission group and a rotation driving unit, wherein the first one-way transmission wheel is coaxially connected to one of the paper discharge rollers, the first one-way transmission wheel is configured to provide a rotational torque to the paper discharge roller around a first rotation direction, the second one-way transmission wheel is coaxially connected to the other paper discharge roller, the second one-way transmission wheel is configured to provide a rotational torque to the paper discharge roller around a second rotation direction, the second rotation direction is opposite to the first rotation direction, and the rotation output end of the rotation driving unit is transmission-connected to the first one-way transmission wheel and the second one-way transmission wheel through the transmission group to drive the first one-way transmission wheel and the second one-way transmission wheel to rotate synchronously.

[0007] The beneficial effects of the double-roll paper towel discharging mechanism of the utility model are:

[0008] In use, due to the characteristics of one-way torque transmission of the first one-way transmission wheel and the second one-way transmission wheel, and the torque transmission directions of the first one-way transmission wheel and the second one-way transmission wheel being set in opposite directions, when the rotary output end of the rotary drive unit drives the rotation in one direction, the first one-way transmission wheel and the second one-way transmission wheel are driven to rotate synchronously in the first rotation direction. At this time, the first one-way transmission wheel provides a rotational torque to one of the paper output rollers to drive the rotation of the paper output roller. The paper output roller drives the output of the paper towel on one of the paper rolls through rotation. At this time, the second one-way transmission wheel rotates relative to the paper output roller connected to it and does not transmit torque. When the rotary output end of the rotary drive unit is reversed and driven to rotate in the other direction, the first one-way transmission wheel and the second one-way transmission wheel are driven to rotate synchronously in the second rotation direction. At this time, the second one-way transmission wheel provides a rotational torque to the other paper output roller to drive the rotation of the paper output roller. The paper output roller drives the output of the paper towel on the other paper roll through rotation. At this time, the first one-way transmission wheel rotates relative to the paper output roller connected to it and does not transmit torque. Through the one-way torque transmission setting of the first one-way transmission wheel and the second one-way transmission wheel and the opposite setting of the transmission directions, the present utility model only needs to control the rotation drive direction of the rotary output end of the rotary drive unit to realize the switching drive of the two paper output components for paper output, so as to meet the double-roll paper towel machine, making the structure more compact, and only requiring one rotary drive unit, greatly reducing the manufacturing cost.

[0009] According to some embodiments of the present utility model, the first one-way transmission wheel includes a first wheel body and a first one-way bearing, and the first wheel body is coaxially connected to one of the paper output rollers through the first one-way bearing;

[0010] The second one-way transmission wheel includes a second wheel body and a second one-way bearing, and the second wheel body is coaxially connected to the other paper output roller through the second one-way bearing.

[0011] In this solution, the first wheel body and the first one-way bearing are sleeved with each other to form the first one-way transmission wheel. Through the connection between the first one-way bearing and the paper output roller, the one-way rotational torque transmission between the first wheel body and the paper output roller is realized. The principle of the second one-way transmission wheel is the same. In this way, the structure is simpler, and only by the first one-way bearing and the second one-way bearing with the opposite setting of the rotational torque transmission direction can the switching of the rotational torque transmission be realized.

[0012] According to some embodiments of the present utility model, the first wheel body and the second wheel body are respectively gear structures, and the transmission group is a gear group.

[0013] The present utility model realizes the transmission between the rotary output end of the rotary drive unit and the first wheel body and the second wheel body through the meshing of the gears, so as to improve the accuracy of paper output and avoid the phenomenon of transmission slipping.

[0014] According to some embodiments of the present utility model, the gear set includes a driving gear, a first transmission gear, and a second transmission gear. The driving gear is fixed to the rotary output end of the rotary driving unit. The first transmission gear is meshed and connected between the first wheel body and the driving gear. The second transmission gear is meshed and connected between the first transmission gear and the second wheel body.

[0015] In this solution, the rotary output end of the rotary driving unit drives the driving gear to rotate. The driving gear drives the first wheel body to rotate through the first transmission gear, so as to drive one of the paper output rollers to rotate. In addition, the first transmission gear can also drive the second wheel body to rotate through the second transmission gear, so as to drive the other paper output roller to rotate. The rotation direction conversion of the rotary output end of the rotary driving unit is realized through the meshing transmission among the driving gear, the first transmission gear, and the second transmission gear.

[0016] According to some embodiments of the present utility model, the paper output assembly further includes a paper pressing roller and a paper pressing elastic structure. The paper pressing roller is arranged parallel to the paper output roller relatively. The paper pressing elastic structure is configured to make the paper pressing roller and the paper output roller approach each other.

[0017] In this solution, the paper pressing elastic structure is used to form an elastic tendency for the paper pressing roller and the paper output roller to approach each other, so as to press the roll paper tightly between the paper pressing roller and the paper output roller. When the paper output roller rotates, it is ensured that the roll paper can be driven to output.

[0018] According to some embodiments of the present utility model, the paper output assembly further includes a paper pressing die shell. Installation sliding clips are respectively arranged at two ends of the paper pressing roller. The paper pressing roller is installed on the paper pressing die shell through the installation sliding clips. The paper pressing elastic structure acts between the installation sliding clips and the paper pressing die shell.

[0019] In this solution, the paper pressing roller is detachably installed on the paper pressing die shell through two installation sliding clips, and the paper pressing elastic structure is arranged between the installation sliding clips and the paper pressing die shell to realize the elastic buffer of the paper pressing roller. The installation is convenient. At this time, the paper pressing elastic structure provides an elastic pressure for the paper pressing roller towards the paper output roller.

[0020] According to some embodiments of the present utility model, the double-roll tissue paper output mechanism includes a machine frame. The paper output roller is rotatably installed on the machine frame. The paper pressing die shell is detachably installed on the machine frame.

[0021] In this solution, the paper pressing die shell adopts a detachable installation method, so as to realize the rapid separation between the paper pressing roller and the paper output roller and achieve the modular effect.

[0022] According to some embodiments of the present utility model, the paper output assembly further includes a paper cutter, and the paper cutter is arranged on the paper output side between the paper pressing roller and the paper output roller.

[0023] This solution realizes the cutting of the roll paper through a paper cutter. After the roll paper extends from the paper outlet side between the paper pressing roller and the paper outlet roller according to a preset length, the roll paper is pulled to make the cutter cut the roll paper.

[0024] A paper towel machine according to the second aspect of the embodiments of the present invention includes the double-roll paper towel paper outlet mechanism, and further includes a machine shell with two paper roll placement positions inside. The machine shell is provided with at least one paper outlet, and the double-roll paper towel paper outlet mechanism is installed at the paper outlet. The two paper outlet components are arranged in one-to-one correspondence with the two paper roll placement positions.

[0025] The beneficial effects of the paper towel machine of the present invention are as follows: during use, one paper roll is loaded in each of the two paper roll placement positions, and the roll papers of the two paper rolls are automatically discharged through the two paper outlet components respectively. When one of the paper rolls is used up, the other paper roll is driven to continue discharging paper by the other paper outlet component, reducing the frequency of paper replacement. Only by controlling the rotation driving direction of the rotation output end of the rotation driving unit can the switching driving of the two paper outlet components be realized to meet the double paper rolls, making the structure more compact, and only one rotation driving unit is needed, greatly reducing the manufacturing cost.

[0026] According to some embodiments of the present invention, the paper towel machine further includes a roll paper detection mechanism, which is configured to control the rotation driving unit to reversely drive the first one-way transmission wheel and the second one-way transmission wheel to rotate when the roll paper in one of the paper roll placement positions is used up.

[0027] This solution detects the remaining amount of the roll paper on the two paper roll placement positions through the roll paper detection mechanism. When the roll paper in one of the paper roll placement positions is used up, the rotation driving unit is controlled to reversely drive the first one-way transmission wheel and the second one-way transmission wheel to rotate, so as to drive the roll paper output of the other paper roll placement position.

[0028] Other features and advantages of the present invention will be described in the subsequent description, and part of them will be obvious from the description, or will be understood by implementing the present invention. Description of the Drawings

[0029] The following further describes the present invention in conjunction with the drawings and embodiments;

[0030] Figure 1 It is a schematic structural diagram of an embodiment of the double-roll paper towel paper outlet mechanism provided by the present invention;

[0031] Figure 2 It is an exploded view of an embodiment of the double-roll paper towel paper outlet mechanism provided by the present invention;

[0032] Figure 3It is an exploded view of the first paper pressing roller and the paper pressing die shell provided by the present utility model;

[0033] Figure 4 It is a side sectional view of a paper towel machine provided by the present utility model;

[0034] Figure 5 Is Figure 4 The partial enlarged view of part A in

[0035] Figure 6 It is a bottom schematic view of a paper towel machine provided by the present utility model;

[0036] Reference numerals:

[0037] Frame 100; Insertion slot 110;

[0038] Paper outlet assembly 200; First paper outlet roller 210; Second paper outlet roller 220; First paper pressing roller 230; Second paper pressing roller 240; Friction sleeve 250; Paper pressing die shell 260; Installation sliding clip 270; Paper cutter 280;

[0039] Drive assembly 300; First one-way drive wheel 310; First wheel body 311; First one-way bearing 312; Second one-way drive wheel 320; Second wheel body 321; Second one-way bearing 322; Transmission group 330; Driving gear 331; First transmission gear 332; Second transmission gear 333;

[0040] Machine shell 400;

[0041] Paper roll placement position 500;

[0042] Inductive sensor 600. Detailed implementation manners

[0043] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0044] In the description of the present utility model, it should be understood that the orientation descriptions involved, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0045] In the description of the present utility model, if there are descriptions with words such as "a number of", its meaning is one or more, and the meaning of multiple is more than two. Understandings such as greater than, less than, and exceeding do not include the base number, and understandings such as above, below, and within include the base number.

[0046] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, and connecting should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present utility model in combination with the specific content of the technical solution.

[0047] The current double-roll tissue paper machine is configured with an automatic paper output mechanism to achieve the automatic output of tissue paper. However, the current automatic paper output mechanism has problems of complex transmission structure and large volume, resulting in a large overall volume of the tissue paper machine and also increasing the manufacturing cost.

[0048] Furthermore, the present utility model proposes a double-roll tissue paper output mechanism, as Figure 1 and Figure 2 shown, the double-roll tissue paper output mechanism of this embodiment includes a frame 100, two paper output components 200, and a driving component 300.

[0049] The paper output component 200 of this embodiment includes a paper output roller rotatably installed on the frame 100. The paper output roller is used to make frictional contact with the roll paper and drive the roll paper to output by rotating. The paper output roller of this embodiment is arranged to extend left and right. In some other embodiments, according to the paper output direction of the tissue paper machine, the paper output roller can extend in other directions. This embodiment takes the paper output roller extending left and right as an example.

[0050] For the convenience of description, the paper output rollers on the two paper output components 200 of this embodiment are divided into a first paper output roller 210 and a second paper output roller 220, and the first paper output roller 210 and the second paper output roller 220 are arranged parallel to each other.

[0051] As Figure 1 , Figure 3 , Figure 5As shown, the drive assembly 300 of the embodiment of the present utility model includes a first one-way transmission wheel 310, a second one-way transmission wheel 320, a transmission group 330, and a rotational drive unit (not shown in the figure). Among them, one end of the first one-way transmission wheel 310 is coaxially connected to one end of the first paper output roller 210, and one end of the second one-way transmission wheel 320 is coaxially connected to one end of the second paper output roller 220. The first one-way transmission wheel 310 of the embodiment of the present utility model is configured to provide a rotational torque to the first paper output roller 210 in a first rotational direction, and the second one-way transmission wheel 320 is configured to provide a rotational torque to the second paper output roller 220 in a second rotational direction. It can be understood that when the first one-way transmission wheel 310 rotates in the first rotational direction, the first paper output roller 210 rotates together with the first one-way transmission wheel 310, and when the first one-way transmission wheel 310 rotates in a direction opposite to the first rotational direction, the first paper output roller 210 does not rotate together with the first one-way transmission wheel 310. When the second one-way transmission wheel 320 rotates in the second rotational direction, the second paper output roller 220 rotates together with the second one-way transmission wheel 320, and when the second one-way transmission wheel 320 rotates in a direction opposite to the second rotational direction, the second paper output roller 220 does not rotate together with the second one-way transmission wheel 320.

[0052] Moreover, in this embodiment, it is defined that the second rotational direction is opposite to the first rotational direction. It can be understood that in the same axial view, when the first rotational direction is the clockwise direction, the second rotational direction is the counterclockwise direction.

[0053] The rotational output end of the rotational drive unit of the embodiment of the present utility model is in transmission connection with the first one-way transmission wheel 310 and the second one-way transmission wheel 320 through the transmission group 330 to drive the first one-way transmission wheel 310 and the second one-way transmission wheel 320 to rotate synchronously.

[0054] During use, due to the characteristics of one-way torque transmission of the first one-way transmission wheel 310 and the second one-way transmission wheel 320, and the torque transmission directions of the first one-way transmission wheel 310 and the second one-way transmission wheel 320 being set in opposite directions, when the rotary output end of the rotary drive unit drives the rotation in one direction, the first one-way transmission wheel 310 and the second one-way transmission wheel 320 are driven to rotate synchronously in the first rotation direction. At this time, the first one-way transmission wheel 310 provides the torque for the first paper output roller 210 to rotate, so as to drive the first paper output roller 210 to rotate. The first paper output roller 210 drives the paper towel on one of the paper rolls to be output by rotation. At this time, the second one-way transmission wheel 320 rotates relative to the second paper output roller 220 and does not transmit torque. When the rotary output end of the rotary drive unit is reversed and drives the rotation in the other direction, the first one-way transmission wheel 310 and the second one-way transmission wheel 320 are driven to rotate synchronously in the second rotation direction. The second one-way transmission wheel 320 provides the torque for the second paper output roller 220 to rotate, so as to drive the second paper output roller 220 to rotate. The second paper output roller 220 drives the paper towel on the other paper roll to be output by rotation. At this time, the first one-way transmission wheel 310 rotates relative to the first paper output roller 210 and does not transmit torque.

[0055] In the present utility model, through the one-way torque transmission settings of the first one-way transmission wheel 310 and the second one-way transmission wheel 320 and the transmission directions being set in opposite directions, only by controlling the rotation drive direction of the rotary output end of the rotary drive unit can the switching drive of the two paper output assemblies 200 be realized to meet the double-roll paper towel machine, making the structure more compact, and only one rotary drive unit is needed, greatly reducing the manufacturing cost.

[0056] Furthermore, as Figure 1 and Figure 2 shown, the first one-way transmission wheel 310 of the embodiment of the present utility model includes a first wheel body 311 and a first one-way bearing 312 that are sleeved with each other. The first wheel body 311 is coaxially connected to the first paper output roller 210 through the first one-way bearing 312. The second one-way transmission wheel 320 includes a second wheel body 321 and a second one-way bearing 322 that are sleeved with each other. The second wheel body 321 is coaxially connected to the second paper output roller 220 through the second one-way bearing 322.

[0057] The first wheel body 311 and the first one-way bearing 312 are sleeved with each other to form the first one-way transmission wheel 310. Through the connection between the first one-way bearing 312 and the first paper output roller 210, the one-way rotation torque transmission between the first wheel body 311 and the first paper output roller 210 is realized. The principle of the second one-way transmission wheel 320 is the same. In this way, the structure is simpler, and only by the first one-way bearing 312 and the second one-way bearing 322 with the rotation torque transmission directions set in opposite directions can the switching of the rotation torque transmission be realized.

[0058] In the first round body 311 and the second round body 321 of this embodiment, gear structures are respectively adopted, and the transmission group 330 adopts a gear set. The rotation output end of the rotation drive unit is transmitted to the first round body 311 and the second round body 321 through the meshing of the gears, so as to improve the accuracy of paper feeding and avoid the phenomenon of transmission slipping.

[0059] As Figure 1 and Figure 2 shown, and the transmission group 330 of this embodiment includes a driving gear 331, a first transmission gear 332 and a second transmission gear 333. The driving gear 331, the first transmission gear 332 and the second transmission gear 333 are rotatably installed on the side of the frame 100, and the driving gear 331 is fixed to the rotation output end of the rotation drive unit. The first transmission gear 332 is meshed and connected between the first round body 311 and the driving gear 331, and the second transmission gear 333 is meshed and connected between the first transmission gear 332 and the second round body 321.

[0060] The rotation drive unit of this embodiment includes a rotation motor and a reducer. The rotation motor is connected to the driving gear 331 through the reducer to achieve speed reduction.

[0061] In this embodiment, the rotation motor is used to drive the driving gear 331 to rotate. The driving gear 331 drives the first round body 311 to rotate through the first transmission gear 332, so as to drive the first paper output roller 210 to rotate. In addition, the first transmission gear 332 can also drive the second round body 321 to rotate through the second transmission gear 333, so as to drive the second paper output roller 220 to rotate. The rotation direction conversion of the rotation output end of the rotation drive unit is realized through the meshing transmission between the driving gear 331, the first transmission gear 332 and the second transmission gear 333, and the above three-gear transmission structure is simplified.

[0062] In some other embodiments, the first round body 311 and the second round body 321 can adopt belt wheels, and the transmission group 330 adopts a belt pulley structure.

[0063] Furthermore, as Figure 1 、 2As shown in FIGS. 5, the paper output assembly 200 of this embodiment further includes a paper pressing roller and a paper pressing elastic structure. The two paper pressing rollers are respectively a first paper pressing roller 230 and a second paper pressing roller 240. The first paper pressing roller 230 is disposed parallel to and opposite the first paper output roller 210, and the second paper pressing roller 240 is parallel to the second paper output roller 220. The paper pressing elastic structure is configured to make the paper pressing roller and the paper output roller approach each other. In this embodiment, the paper pressing elastic structure is used to form an elastic tendency of approaching each other between the first paper pressing roller 230 and the first paper output roller 210, and an elastic tendency of approaching each other between the second paper pressing roller 240 and the second paper output roller 220, so as to press the roll paper between each paper pressing roller and the paper output roller. When the paper output roller rotates, the friction between the paper output roller and the roll paper can be increased to ensure that the roll paper can be driven to output.

[0064] In some embodiments, as Figure 1 and 2 shown, a plurality of friction sleeves 250 are respectively sleeved on the outer peripheries of the first paper output roller 210 and the second paper output roller 220. The first paper output roller 210 and the second paper output roller 220 are in contact with the roll paper through the plurality of friction sleeves 250. The friction sleeves 250 can increase the contact friction between the paper output roller and the roll paper, making the paper output smoother and avoiding the phenomenon of slipping.

[0065] As Figure 1 、 2 shown in FIGS. 3, the paper output assembly 200 further includes a paper pressing die case 260. Installation sliding clips 270 are respectively provided at both ends of the first paper pressing roller 230 and the second paper pressing roller 240. The first paper pressing roller 230 and the second paper pressing roller 240 are installed on the corresponding paper pressing die case 260 through the installation sliding clips 270. The paper pressing elastic structure acts between the installation sliding clip 270 and the paper pressing die case 260. In this embodiment, the first paper pressing roller 230 and the second paper pressing roller 240 are detachably installed on the corresponding paper pressing die case 260 through the two installation sliding clips 270, and the paper pressing elastic structure is arranged between the installation sliding clip 270 and the paper pressing die case 260 to realize the elastic buffer of the paper pressing roller, which is convenient for installation. At this time, the paper pressing elastic structure provides an elastic force towards the paper output roller for the paper pressing roller.

[0066] In some other embodiments, the paper pressing elastic structure can provide an elastic force towards the paper pressing roller for the paper output roller. At this time, the paper output roller is movably arranged relative to the paper pressing roller.

[0067] The paper pressing elastic structure of this embodiment is a spring (not shown in the figure).

[0068] And, as Figure 2As shown in the figure, the paper pressing die case 260 of this embodiment is detachably installed on the frame 100. An insertion slot 110 is provided on the frame 100, and both ends of the paper pressing die case 260 are detachably inserted into the insertion slot 110. The paper pressing die case 260 adopts a detachable installation method, so as to realize the rapid separation between the paper pressing roller and the paper output roller, achieving a modular effect.

[0069] As Figure 1 , 2 , as shown in FIG. 5, the paper output assembly 200 further includes a paper cutter 280. The paper cutter 280 is arranged on the paper output side between the paper pressing roller and the paper output roller. The paper cutter 280 is used to cut the roll paper. When the roll paper extends from the paper output side between the paper pressing roller and the paper output roller according to a preset length, pull the roll paper to make the cutter cut the roll paper. The paper cutter 280 of this embodiment is installed on the paper pressing die case 260 and extends left and right. In some other embodiments, the paper cutter 280 can be installed on the frame 100.

[0070] This embodiment also proposes a tissue paper machine. As Figure 4 , 5 , as shown in FIG. 6, it includes the above-mentioned double-roll tissue paper output mechanism and the machine shell 400. The inside of the machine shell 400 has two paper roll placement positions 500, and the two paper roll placement positions 500 are arranged at intervals up and down, so as to improve the space utilization rate. The machine shell 400 is provided with at least one paper output port 410. The paper output port 410 is arranged at the bottom of the machine shell 400. The double-roll tissue paper output mechanism is installed at the paper output port 410, and the two paper output assemblies 200 are arranged in one-to-one correspondence with the two paper roll placement positions 500.

[0071] Among them, the frame 100 is connected to the machine shell 400. In some embodiments, two paper output ports 410 can be provided, and the two paper output assemblies 200 are installed on the two paper output ports 410 in one-to-one correspondence. The first paper output roller 210 and the second paper output roller 220 of this embodiment are arranged in parallel at intervals front and back in the paper output port 410.

[0072] During use, one paper roll is loaded in each of the two paper roll placement positions 500, and the roll papers of the two paper rolls are automatically output through the two paper output assemblies 200 respectively. The two roll papers pass between the first paper output roller 210 and the first paper pressing roller 230, and between the second paper output roller 220 and the second paper pressing roller 240. When one of the paper rolls is used up, the other paper roll is driven to continue output by the other paper output assembly 200, reducing the frequency of paper replacement. Only by controlling the rotation drive direction of the rotation output end of the rotation drive unit can the switching drive output of the two paper output assemblies 200 be realized to meet the double paper rolls, making the structure more compact, and only one rotation drive unit is needed, greatly reducing the manufacturing cost.

[0073] The paper towel machine of this embodiment further includes a roll paper detection mechanism, which is configured to control the rotation drive unit to reversely drive the first one-way transmission wheel 310 and the second one-way transmission wheel 320 to rotate after the roll paper on one of the roll paper placement positions 500 is used up. The roll paper detection mechanism is used to detect the remaining amount of roll paper on the two roll paper placement positions 500. After the roll paper on one of the roll paper placement positions 500 is used up, it controls the rotation drive unit to reversely drive the first one-way transmission wheel 310 and the second one-way transmission wheel 320 to rotate, so as to drive the roll paper on the other roll paper placement position 500 to be output.

[0074] As Figure 5 shown, the roll paper detection mechanism of this embodiment includes an induction sensor 600 arranged at the paper outlet 410. The induction sensor 600 is used to measure the paper outlet length, and the remaining amount of roll paper on the roll paper placement position 500 is obtained by detecting the paper outlet length.

[0075] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention. These equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A double-roll tissue paper dispensing mechanism, characterized in that, include: There are two paper discharging assemblies, each of which includes a paper discharging roller for driving the paper towel to be discharged by rotating; The driving assembly includes a first one-way transmission wheel, a second one-way transmission wheel, a transmission group and a rotation driving unit, wherein the first one-way transmission wheel is coaxially connected to one of the paper discharge rollers, the first one-way transmission wheel is configured to provide a rotational torque to the paper discharge roller around a first rotation direction, the second one-way transmission wheel is coaxially connected to the other paper discharge roller, the second one-way transmission wheel is configured to provide a rotational torque to the paper discharge roller around a second rotation direction, the second rotation direction is opposite to the first rotation direction, and the rotation output end of the rotation driving unit is transmission-connected to the first one-way transmission wheel and the second one-way transmission wheel through the transmission group to drive the first one-way transmission wheel and the second one-way transmission wheel to rotate synchronously.

2. The double-roll paper towel dispensing mechanism according to claim 1, characterized in that: The first one-way transmission wheel comprises a first wheel body and a first one-way bearing, and the first wheel body is coaxially connected to one of the paper discharge rollers through the first one-way bearing; The second one-way transmission wheel comprises a second wheel body and a second one-way bearing, and the second wheel body is coaxially connected to the other paper discharge roller via the second one-way bearing.

3. The double-roll paper towel dispensing mechanism according to claim 2, characterized in that: The first wheel body and the second wheel body are respectively gear structures, and the transmission group is a gear group.

4. The double-roll paper towel dispensing mechanism according to claim 3, characterized in that: The gear set includes a driving gear, a first transmission gear, and a second transmission gear. The driving gear is fixed to the rotation output end of the rotation drive unit. The first transmission gear is meshedly connected between the first wheel body and the driving gear. The second transmission gear is meshedly connected between the first transmission gear and the second wheel body.

5. The double-roll paper towel dispensing mechanism according to claim 1, characterized in that: The paper discharge assembly further comprises a paper pressing roller and a paper pressing elastic structure. The paper pressing roller and the paper discharge roller are arranged relatively parallel to each other, and the paper pressing elastic structure is configured so that the paper pressing roller and the paper discharge roller are close to each other.

6. The double-roll paper towel dispensing mechanism according to claim 5, characterized in that: The paper discharging assembly also includes a paper pressing mold shell, and both ends of the paper pressing roller are respectively provided with mounting sliding clamps, and the paper pressing roller is installed on the paper pressing mold shell through the mounting sliding clamps. The paper pressing elastic structure includes an elastic structure acting between the mounting sliding clamps and the paper pressing mold shell.

7. The double-roll paper towel dispensing mechanism according to claim 6, characterized in that: The double-roll paper towel paper discharging mechanism comprises a frame, the paper discharging roller is rotatably mounted on the frame, and the paper pressing mold shell is detachably mounted on the frame.

8. The double-roll paper towel dispensing mechanism according to claim 5, characterized in that: The paper discharging assembly further comprises a paper cutter, and the paper cutter is arranged at the paper discharging side between the paper pressing roller and the paper discharging roller.

9. A paper towel machine, characterized in that, It includes the double-roll tissue paper discharging mechanism according to any one of claims 1 to 8, and further includes a casing with two paper roll placement positions inside. The casing is provided with at least one paper outlet, and the double-roll tissue paper discharging mechanism is installed at the paper outlet. The two paper discharging assemblies are arranged in one-to-one correspondence with the two paper roll placement positions.

10. The tissue paper machine according to claim 9, wherein: The tissue paper machine further includes a roll paper detection mechanism, and the roll paper detection mechanism is configured to control the rotary drive unit to reversely drive the first one-way transmission wheel and the second one-way transmission wheel to rotate after the roll paper in one of the paper roll placement positions is used up.

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