Wet tissue production line and system thereof

Abstract

The invention relates to the field of tissues, and provides a wet tissue production line and a system thereof.The wet tissue production line comprises a rack, a controller, a feeding conveying belt and an overturning conveying belt, the feeding conveying belt and the overturning conveying belt are sequentially communicated, and the feeding conveying belt is used for compactly arranging multiple stacks of tissues side by side; the overturning conveying belt is used for pressing and overturning the tissues; a spraying unit used for adding cleaning liquid to the tissues is arranged at the position of the overturning conveying belt. The production line is high in automation degree, the production efficiency is improved, and the production loss is reduced. In addition, the tissues are turned over, sprayed and humidified, so that the wetting uniformity of the wet tissues is ensured.

Description

Technical Field

[0001] The invention relates to the field of paper towels, in particular to a wet paper towel production line and a system thereof. Background Art

[0002] Paper towels are a common daily necessity, widely used for cleaning, wiping, and personal hygiene. As consumers' demands for personal hygiene and convenient lifestyles increase, the market demand for paper towels is also growing. In order to meet market demand, how to improve the degree of automation in production has become an important goal for manufacturers.

[0003] Among them, wet wipes are a soft, absorbent fiber material, usually soaked in a solution of detergent, disinfectant or moisturizing ingredients, which can be used to clean the skin, disinfect the surface of objects or provide a comfortable use experience. In addition, in recent years, the disinfection function of wet wipes has received more and more attention, and many brands have begun to launch wet wipes containing alcohol ingredients to ensure effective killing of bacteria and viruses. This response to public health threats has led to a significant increase in the demand for wet wipes in the market.

[0004] The conventional preparation of wet wipes generally includes the following steps: unwinding of nonwoven roll → folding of wipes → cutting of wipes → wetting → stacking of wipes → die cutting → resealable self-adhesive labeling → bag forming → bag sealing. For example, CN208501277U discloses a soaking device for wet wipe production that is convenient for salvaging wet wipes.

[0005] With the development of the industry, a method of using spraying to humidify non-woven fabrics has emerged, which has the advantages of reducing raw material loss and over-wetting non-woven fabrics. For example, CN116905186A discloses a processing device and method for producing moisturizing paper towels, including a bottom plate, an input mechanism, a spraying mechanism, a cutting mechanism and an output mechanism, wherein the spraying mechanism is located between the input mechanism and the cutting mechanism, and the spraying mechanism includes a liquid storage bin, a limit column, a spraying column, an adjustment component, a conveying component, a first spraying component and a second spraying component; when the spraying mechanism of the above patent sprays the paper towel, the opening of the paper towel is set to face up and down, and the first spraying component sprays the inside of the paper towel from both the up and down directions. Because of the folding between the paper towels, this spraying method can speed up the downflow of the moisturizing liquid, and according to the folding thickness of the paper towel, the number of the first liquid adding column and the second liquid adding column is adjusted to ensure the spacing between the first liquid adding column and the second liquid adding column, so as to add liquid to paper towels of different thicknesses and ensure the liquid adding effect. The above patent has strict requirements on the folding of paper towels, otherwise the liquid adding column cannot enter the interior of the paper towels, and even causes the paper towels to fall apart. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a wet tissue production line and a system thereof. The production line of the present invention has a high degree of automation, which not only improves production efficiency but also reduces production losses. In addition, by turning over the tissue and spraying humidification, the uniformity of the wet tissue is ensured.

[0007] The technical solution of the present invention is:

[0008] A wet tissue production line comprises a frame, a controller, a feeding conveyor belt and a flip conveyor belt which are connected in sequence. The feeding conveyor belt is used to compactly arrange multiple stacks of tissues side by side; the flip conveyor belt is used to press and flip the tissues; and a spray unit for adding cleaning liquid to the tissues is provided at the flip conveyor belt.

[0009] The present invention controls the working order of the feeding conveyor belt, the turning conveyor belt and the spray unit through a controller to quickly and evenly humidify the paper towels, wherein the feeding conveyor belt plays the role of inputting multiple stacks of paper towels into the turning conveyor belt, and then after the turning conveyor belt compacts the paper towels, the spray unit humidifies the paper towels. On the one hand, this method can accurately control the spraying amount, and on the other hand, because the paper towels are compacted, compared with loose paper towels, this method can also improve the uniformity of wetting the paper towels.

[0010] In the above-mentioned wet tissue production line, a limiting mechanism for intermittently blocking tissues is provided at the end of the feeding conveyor belt; the feeding conveyor belt is composed of multiple sections of conveyor belts connected end to end in sequence; the multiple sections of the conveyor belts are respectively provided with driving mechanisms and each section of the conveyor belt can operate independently; the controller is used to control whether the limiting mechanism and the driving mechanism of each section of the conveyor belt are working; the length of the conveyor belt is greater than or less than N times the length of the tissue.

[0011] In the wet tissue production line described above, sensors for detecting tissues are provided at the starting end and the end of the feeding conveyor belt and at the connection between adjacent conveyor belts; and the sensors are connected to the controller signals.

[0012] In the above-mentioned wet tissue production line, enclosure plates are respectively provided on both sides of the feeding conveyor belt.

[0013] In the above-mentioned wet tissue production line, the limiting mechanism includes a first power module arranged at the end of the feeding conveyor belt and a baffle arranged on the power output end of the first power module.

[0014] In the above wet tissue production line, the overturning conveyor belt comprises an overturning unit and a conveying unit, the overturning unit is arranged on the frame; the conveying unit is arranged on the overturning unit;

[0015] The flip unit includes a first rotating module and a second rotating module which are symmetrically arranged; the first rotating module and the second rotating module rotate synchronously to drive the conveying unit to rotate;

[0016] The conveying unit includes a first horizontal conveyor belt and a pressurizing module; one end of the first horizontal conveyor belt is connected to the first rotating module, and the other end of the first horizontal conveyor belt is connected to the second rotating module; one end of the pressurizing module is slidably connected to the first rotating module, and the other end of the pressurizing module is slidably connected to the second rotating module; the pressurizing module is arranged directly above the first horizontal conveyor belt and is used to clamp paper towels; a horizontal conveying channel for conveying paper towels is formed between the first horizontal conveyor belt and the pressurizing module.

[0017] In the wet tissue production line, the first rotating module comprises a first rotating disk and a first positioning wheel; there are a plurality of first positioning wheels, and the plurality of first positioning wheels are respectively arranged on the frame; the first rotating disk abuts against the plurality of first positioning wheels to be rotatably positioned on one side of the frame;

[0018] The second rotating module includes a second rotating disk and a second positioning wheel; there are multiple second positioning wheels, and the multiple second positioning wheels are respectively arranged on the frame; the second rotating disk abuts against the multiple second positioning wheels to be rotatably positioned on the other side of the frame;

[0019] The first rotating module or the second rotating module is provided with a gear plate; the gear plate is connected to a rotating driving assembly for driving the first rotating module and the second rotating module to rotate synchronously.

[0020] In the above wet tissue production line, limiting wheels are provided on both sides of the first turntable and / or on both sides of the second turntable.

[0021] In the above wet tissue production line, the first turntable and the second turntable are both provided with a first slide rail for connecting the pressurizing module; the first turntable and the second turntable are provided with a lifting drive assembly for driving the pressurizing module to move up and down along the first slide rail.

[0022] In the above-mentioned wet tissue production line, the pressurizing module is a second horizontal conveyor belt; the first horizontal conveyor belt and the second horizontal conveyor belt run synchronously.

[0023] In the above wet tissue production line, it also includes an anti-drop unit arranged on the turning unit; the anti-drop unit is used to close or open both sides of the horizontal conveying channel.

[0024] In the above-mentioned flip conveyor belt, a position sensor is also provided on the frame; the position sensor is used to detect whether there is a paper towel at the end of the horizontal conveying channel.

[0025] In the wet tissue production line described above, the anti-drop unit comprises a first blocking module and a second blocking module which are symmetrically arranged; the first blocking module and the second blocking module can operate independently and are respectively used to close or open one side of the horizontal conveying channel.

[0026] In the above-mentioned wet tissue production line, the first blocking module and the second blocking module are mirror-image structures; the first blocking module includes a first sliding structure arranged on the first rotating module, a second sliding structure arranged on the second rotating module, and support plates at both ends respectively slidably connected to the first sliding structure and the second sliding structure; the first sliding structure and the second sliding structure are mirror-image structures; the first sliding structure includes a second slide rail and a sliding drive assembly for driving the support plate to slide along the second slide rail.

[0027] In the above-mentioned wet tissue production line, the spray unit is arranged directly above the horizontal conveying channel and adds cleaning liquid to the tissues on the flip conveyor belt through both sides of the horizontal conveying channel.

[0028] In addition, the present application also provides a wet tissue production system, comprising at least two of the above-mentioned wet tissue production lines, and also comprising a diverter conveyor belt;

[0029] The diversion conveyor belt is provided with a feeding channel, a diversion channel and a swing mechanism; the number of the diversion channels is equal to the number of wet tissue production lines and they are arranged one by one; the swing mechanism is used to drive the feeding channel to move to any diversion channel and connect the two so as to input the tissues to the feeding conveyor belt;

[0030] The wet tissue production system of the present application reduces the idle time of the wet tissue production lines by reasonably combining multiple wet tissue production lines, thereby effectively improving the production efficiency of the wet tissues.

[0031] In the above-mentioned wet tissue production system, it also includes a temporary storage conveyor belt and a discharge conveyor belt; the number of the temporary storage conveyor belts is equal to the wet tissue production line and they are arranged one-to-one, and all the temporary storage conveyor belts can be moved to the discharge conveyor belt and connect the two to output the tissues.

[0032] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0033] The present invention improves the degree of automation in preparing wet tissues, and realizes full automation from loading, wetting to unloading; at the same time, by pressing and flipping the two sides of the wet tissues to humidify, not only the wetting uniformity of the wet tissues is ensured, but also the wetting degree of the tissues can be accurately controlled. In addition, the wet tissue production line of the present invention has a novel structure and is suitable for various scenarios that require conveying, flipping and spraying, which significantly improves efficiency. When used for humidifying tissues, it can also reduce the amount of cleaning liquid used, which significantly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a three-dimensional diagram of a wet tissue production system according to Embodiment 1 of the present invention;

[0035] Figure 2 A top view of a wet tissue production system according to Embodiment 1 of the present invention;

[0036] Figure 3 It is a three-dimensional diagram of the diverter conveyor belt of Example 1 of the present invention;

[0037] Figure 4 It is a three-dimensional diagram of the diversion conveyor belt and the loading conveyor belt of Example 1 of the present invention;

[0038] Figure 5 It is a three-dimensional diagram of the loading conveyor belt of Example 1 of the present invention;

[0039] Figure 6 It is a top view of the loading conveyor belt of Example 1 of the present invention;

[0040] Figure 7 A one-side perspective view of the overturning conveyor belt of Example 1 of the present invention;

[0041] Figure 8 It is a three-dimensional view of the other side of the overturning conveyor belt of Example 1 of the present invention;

[0042] Fig. 9 For example 1 of the present invention Figure 8 A partial enlarged schematic diagram of

[0043] Fig.10 A three-dimensional diagram of a frame portion of a wet tissue production system according to Embodiment 1 of the present invention;

[0044] Fig.11 For example 1 of the present invention Fig.10 A partial enlarged schematic diagram of

[0045] Fig.12 A side view of a frame portion of a wet tissue production system according to Embodiment 1 of the present invention;

[0046] Fig.13 A top view of a frame portion of a wet tissue production system according to Embodiment 1 of the present invention;

[0047] Fig.14 It is a front view of a frame portion of a wet tissue production system according to Embodiment 1 of the present invention;

[0048] Fig.15 It is a three-dimensional diagram of the temporary storage conveyor belt and the unloading conveyor belt of Example 1 of the present invention.

[0049] The reference numerals are as follows:

[0050] Diverter conveyor belt 1; feeding channel 11; fixed section 111; swing section 112; diverter channel 12; swing mechanism 13; mounting frame 131; second power module 132; pushing assembly 133; adjusting mechanism 14; sliding rod 141; sliding block 142;

[0051] A first sensor 101; a second sensor 102; a third sensor 103; a fourth sensor 104; a fifth sensor 105; a sixth sensor 106; a seventh sensor 107; an eighth sensor 108; a position sensor 109; a position sensor 109;

[0052] Feeding conveyor belt 2; limiting mechanism 21; first power module 211; baffle 212; enclosure 22;

[0053] Turning conveyor belt 3; turning unit 31; first rotating module 311; first turntable 3111; first positioning wheel 3112; gear plate 3113; driving wheel 3114; second rotating module 312; second turntable 3121; second positioning wheel 3122; first slide rail 300; lifting drive assembly 310; limiting wheel 320;

[0054] Conveying unit 32; first horizontal conveyor belt 321; second horizontal conveyor belt 322;

[0055] Anti-drop unit 33; first blocking module 331; first sliding structure 3311; second slide rail 33111; sliding drive assembly 33112; second sliding structure 3312; support plate 3313; second blocking module 332;

[0056] Spray unit 34; power pump 341; spray head 342;

[0057] Temporary storage conveyor belt 4; fixed frame 41; third slide rail 411; unloading conveyor belt 5;

[0058] Frame 6; paper towel a; horizontal conveying channel b. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] It should be noted that the paper towels described in the following embodiments are all paper towel stacks, and the composition of the added cleaning liquid is not limited.

[0061] Example 1

[0062] A wet tissue production line comprises a frame 6, a controller, a feeding conveyor belt 2 and a flipping conveyor belt 3 which are connected in sequence, wherein the feeding conveyor belt 2 is used to compactly arrange multiple stacks of tissues a side by side; the flipping conveyor belt 3 is used to press the tissues a and flip them; and a spray unit 34 is provided at the flipping conveyor belt 3 for adding cleaning liquid to the tissues a.

[0063] In this embodiment, a limiting mechanism 21 for intermittently blocking the paper towel a is provided at the end of the feeding conveyor belt 2; the feeding conveyor belt 2 is composed of multiple sections of conveyor belts connected end to end in sequence; the multiple sections of the conveyor belts are respectively provided with driving mechanisms and each section of the conveyor belt can operate independently; the controller is used to control whether the limiting mechanism 21 and the driving mechanisms of each section of the conveyor belt are working; the length of the conveyor belt is greater than or less than N times the length of the paper towel a.

[0064] The feeding conveyor belt 2 in this embodiment is composed of multiple sections of conveyor belts connected end to end and running independently. Under the action of the controller, each section of the conveyor belt is started and stopped as needed to make the paper towels a stacked neatly and compactly arranged side by side. After the paper towels a are arranged, the limiting mechanism 21 no longer blocks the paper towels a, so that the paper towels a can enter the next process, thereby achieving the purpose of compactly conveying multiple stacks of paper towels a side by side, and the paper towels a will not be arched by force during the conveying process. At the same time, the length design of the conveyor belt can avoid the problem that the paper towels a cannot be tightly attached due to the gap between the conveyor belts.

[0065] In this embodiment, specifically, the feeding conveyor belt 2 is composed of 4 sections of conveyor belts connected end to end in sequence; the length of the conveyor belt is approximately equal to the length of 2.5 stacks of paper towels a compactly arranged side by side. It should be noted that, in order to facilitate the description of the working principle of this embodiment, the 4 sections of conveyor belts are named first conveyor belt, second conveyor belt, third conveyor belt and fourth conveyor belt in sequence. The driving mechanisms are all motors.

[0066] In actual application, sensors for detecting paper towel a are provided at the starting end and the end of the feeding conveyor belt 2, as well as between the first conveyor belt and the second conveyor belt, between the second conveyor belt and the third conveyor belt, and between the third conveyor belt and the fourth conveyor belt; similarly, for the convenience of explanation, the sensors are named as the first sensor 101, the second sensor 102, the third sensor 103, the fourth sensor 104, and the fifth sensor 105 along the conveying path. The first sensor 101, the second sensor 102, the third sensor 103, the fourth sensor 104, and the fifth sensor 105 are all connected to the controller signal.

[0067] Under the above design, the working process of this embodiment is as follows: the paper towel a is continuously conveyed by the first conveyor belt, the second conveyor belt, the third conveyor belt and the fourth conveyor belt and is blocked by the limiting mechanism 21 until the fourth conveyor belt at the rear end is filled with paper towel a. At this time, the fourth sensor 104 detects the paper towel a (the third stack of paper towel a in this embodiment, refer to Figure 2 ), the controller sends a signal to the driving mechanism of the fourth conveyor belt to stop conveying; similarly, the third conveyor belt, the second conveyor belt, and the first conveyor belt stop conveying in sequence to complete the designated number of paper towels a in parallel. Finally, when the first sensor 101, the second sensor 102, the third sensor 103, the fourth sensor 104, and the fifth sensor 105 all detect paper towel a, the limiting mechanism 21 no longer blocks the paper towel a, allowing the paper towel a to be conveyed to the next process.

[0068] As a preferred embodiment of the present invention, in order to align the paper towels a, enclosures 22 are respectively provided on both sides of the feeding conveyor belt 2. In practical application, the distance between the enclosures 22 on both sides is slightly greater than the width of the paper towel a, which plays a limiting role without blocking the conveying.

[0069] As a further preferred embodiment of the present invention, the limiting mechanism 21 comprises a first power module 211 disposed at the end of the feeding conveyor belt 2 and a baffle 212 disposed on the power output end of the first power module 211. Specifically, the first power module 211 is a cylinder.

[0070] In this embodiment, the overturning conveyor belt 3 includes an overturning unit 31 and a conveying unit 32. The overturning unit 31 is arranged on the frame 6; the conveying unit 32 is arranged on the overturning unit 31;

[0071] The flip unit 31 includes a first rotating module 311 and a second rotating module 312 that are symmetrically arranged; the first rotating module 311 and the second rotating module 312 rotate synchronously to drive the conveying unit 32 to rotate;

[0072] Specifically, the first rotating module 311 includes a first rotating disk 3111 and a first positioning wheel 3112; there are four first positioning wheels 3112, and the four first positioning wheels 3112 are arranged in pairs above and below the frame 6 respectively; the first rotating disk 3111 abuts against the four first positioning wheels 3112 to be rotatably positioned on one side of the frame 6;

[0073] Under the above design, the first turntable 3111 can rotate along its own axis. It is worth mentioning that in order to prevent the position of the paper towel a from deviating due to rotation, the conveying unit 32 is preferably designed to allow the paper towel a to be input and output along the axis of the first turntable 3111.

[0074] Similarly, the second rotating module 312 includes a second rotating disk 3121 and a second positioning wheel 3122; there are four second positioning wheels 3122, and the four second positioning wheels 3122 are arranged in pairs above and below the frame 6 respectively; the second rotating disk 3121 abuts against the four second positioning wheels 3122 to be rotatably positioned at the other side of the frame 6;

[0075] More specifically, in this embodiment, the first rotating module 311 is provided with a gear plate 3113; the gear plate 3113 is connected to a rotating drive assembly for driving the first rotating module 311 and the second rotating module 312 to rotate synchronously. Preferably, the rotating drive assembly includes a driving wheel 3114 matched with the gear plate 3113 and a motor for driving the driving wheel 3114 to rotate.

[0076] As a preferred embodiment of the present invention, in order to prevent the first rotating disk 3111 and the second rotating disk 3121 from shifting in the axial direction, limiting wheels 320 are provided on both sides of the first rotating disk 3111 and / or on both sides of the second rotating disk 3121. Further preferably, in the present embodiment, limiting wheels 320 are provided only on both sides of the second rotating disk 3121, and the sides of the limiting wheels 320 on both sides are in contact with the bottom surfaces on both sides of the second rotating disk 3121, respectively, so as to achieve the purpose of limiting the axial direction of the second rotating disk 3121. Of course, in other embodiments, limiting wheels 320 are provided on both sides of the first rotating disk 3111, or limiting wheels 320 are provided on both sides of the first rotating disk 3111 and the second rotating disk 3121.

[0077] Specifically, the conveying unit 32 includes a first horizontal conveyor belt 321 and a pressurizing module; one end of the first horizontal conveyor belt 321 is connected to the first rotating module 311, and the other end of the first horizontal conveyor belt 321 is connected to the second rotating module 312; one end of the pressurizing module is slidably connected to the first rotating module 311, and the other end of the pressurizing module is slidably connected to the second rotating module 312; the pressurizing module is arranged directly above the first horizontal conveyor belt 321 and is used to clamp the paper towel a; a horizontal conveying channel b for conveying the paper towel a is formed between the first horizontal conveyor belt 321 and the pressurizing module.

[0078] As a preferred embodiment of the present invention, the pressurizing module is a second horizontal conveyor belt 322; the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 run synchronously. Under this preferred embodiment, compared with simply using a hard plate to press the paper towel a against the first horizontal conveyor belt 321, the pressurizing module uses the second horizontal conveyor belt 322, which can prevent the paper towel a from slipping on the first horizontal conveyor belt 321 during input and output, thereby preventing the distance between the paper towels a from increasing. Under the preferred embodiment, when the paper towel a is input and output, the second horizontal conveyor belt 322 gently presses down to apply pressure to the paper towel a, and the second horizontal conveyor belt 322 rotates synchronously with the first horizontal conveyor belt 321, thereby preventing the distance between the paper towels a from increasing.

[0079] More specifically, the first turntable 3111 and the second turntable 3121 are both provided with a first slide rail 300 for connecting the pressurizing module; in this embodiment, the first turntable 3111 and the second turntable 3121 are provided with a lifting drive assembly 310 for driving the pressurizing module to move up and down along the first slide rail 300. Preferably, the lifting drive assembly 310 is a motor screw sliding pair, which has the advantage of being able to accurately control the lifting and lowering amplitude of the second horizontal conveyor belt 322. Of course, those skilled in the art may also use other conventional lifting mechanisms to achieve the same purpose.

[0080] In this embodiment, a position sensor 109 is further provided on the frame 6; the position sensor 109 is used to detect whether there is a paper towel a at the end of the horizontal conveying channel b. The position sensor 109 is connected to the controller of the external device to coordinate the movement of each unit.

[0081] In practical applications, an anti-drop unit 33 is further included on the flip unit 31; the anti-drop unit 33 is used to close or open both sides of the horizontal conveying channel b.

[0082] As a preference of this embodiment, the anti-drop unit 33 includes a first blocking module 331 and a second blocking module 332 that are symmetrically arranged; the first blocking module 331 and the second blocking module 332 can operate independently and are respectively used to close or open one side of the horizontal conveying channel b.

[0083] As a further preference of this embodiment, the first blocking module 331 and the second blocking module 332 are mirror structures (the specific composition of the second blocking module 332 is omitted in the figure); the first blocking module 331 includes a first sliding structure 3311 arranged on the first rotating module 311, a second sliding structure 3312 arranged on the second rotating module 312, and support plates 3313 at both ends respectively slidably connected to the first sliding structure 3311 and the second sliding structure 3312; the first sliding structure 3311 and the second sliding structure 3312 are mirror structures; the first sliding structure 3311 includes a second slide rail 33111 and a sliding drive assembly 33112 for driving the support plate 3313 to slide along the second slide rail 33111.

[0084] The anti-drop unit 33 under the above design independently closes or opens one side of the horizontal conveying channel b by setting up a first blocking module 331 and a second blocking module 332, so that the application scenarios of the device are more diverse. It should be noted that in this embodiment, there are two support plates 3313, and the sliding drive assembly 33112 has two power sources. The two support plates 3313 are respectively fixed on the two power sources. Compared with using a whole support plate 3313, the split support plate 3313 reduces the sliding distance, which not only responds more quickly but also reduces the space occupancy rate.

[0085] In actual application, the application principle of this embodiment is as follows: a series of paper towels a enter the horizontal conveying channel b from the axis of the first turntable 3111, and then the series of paper towels a are transported along the horizontal conveying channel b driven by the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 until the position sensor 109 detects the paper towel a at the front end, the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 stop working, and the rotating drive component of the flipping unit 31 drives the first turntable 3111 and the second turntable 3121 to rotate 90° clockwise synchronously. At this time, the first blocking module 331 works to make the support plate 3313 close one side of the horizontal conveying channel b to prevent the paper towel a from falling due to its own weight. Similarly, it can also rotate 90° counterclockwise. Finally, according to different production needs, the node for controlling the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 to work again is selected to realize the output of the paper towel a at various angles such as 90° and 180°.

[0086] A wet tissue production system comprises two wet tissue production lines as described above; further comprising a diverter conveyor belt 1; the diverter conveyor belt 1 is provided with a feeding channel 11, a diverter channel 12 and a swing mechanism 13; the number of the diverter channels 12 is equal to the number of wet tissue production lines and they are arranged one-to-one; the swing mechanism 13 is used to drive the feeding channel 11 to move to any diverter channel 12 and connect the two to convey tissue a to the feeding conveyor belt 2.

[0087] This embodiment can switch the conveying path of the paper towel a, so that the diverter conveyor belt 1 can be independently connected with the two sections of the feeding conveyor belt 2, thereby adjusting the production rhythm and improving the conveying efficiency. In this embodiment, in order to clearly illustrate the working principle, the upper diverter conveyor belt 1 is connected with the two sections of the feeding conveyor belt 2 to form a first conveying path and a second conveying path.

[0088] The working principle of this embodiment is as follows: add paper towel a into the feeding channel 11, and under the drive of the diverter conveyor belt 1, the paper towel a is conveyed along the feeding channel 11 to the feeding conveyor belt 2, and then the feeding conveyor belt 2 operates according to the working principle described above to complete the side-by-side arrangement of a specified number of paper towels a, and then the swing mechanism 13 works to drive the feeding channel 11 to move to another feeding conveyor belt 2 to switch the conveying path, and similarly complete the side-by-side arrangement of a specified number of paper towels a; repeat the above process to switch back and forth between the first conveying path and the second conveying path. This reduces the idle time of conveying, speeds up the production cycle, and improves the conveying efficiency.

[0089] In this embodiment, the feeding channel 11 includes a fixed section 111 and a swing section 112 connected to the fixed section 111; the swing mechanism 13 includes a mounting frame 131 arranged on the diversion conveyor belt 1, a second power module 132 arranged on the mounting frame 131, and a pushing assembly 133 arranged on the power output end of the second power module 132; the pushing assembly 133 includes push rods arranged on both sides of the swing section 112. Specifically, the second power module 132 is a cylinder.

[0090] Under the above design, one end of the swing section 112 is hinged to the fixed section 111. Under the action of the second power module 132, the push rods located on both sides of the swing section 112 follow the movement and drive the swing section 112 to move, thereby switching the first conveying path or the second conveying path.

[0091] In this embodiment, the feeding channel 11 is provided with a sensor for detecting the paper towel a; the sensor is connected to the controller signal. In this embodiment, specifically, the feeding channel 11 is provided with a sixth sensor 106, a seventh sensor 107 and an eighth sensor 108 for collaboratively controlling whether the feeding conveyor belt 2 moves and whether the loop conveying path is connected. As for the specific control method, it is not described in detail in this embodiment. Those skilled in the art can adjust it according to actual production needs by counting, delaying, etc. according to conventional means.

[0092] As a preferred embodiment of the present invention, the diversion conveyor belt 1 is also provided with an adjusting mechanism 14 for adjusting and fixing the position of the diversion channel 12; the adjusting mechanism 14 includes a sliding rod and a slider 142 arranged on the diversion conveyor belt 1; one end of the slider 142 is connected to the sliding rod, and the other end of the slider 142 is detachably connected to the diversion channel 12.

[0093] Under the above-mentioned preferred embodiment, the design of the adjustment mechanism 14 enables the staff to install and adjust the position of the diversion channel 12 according to the production site, so that the paper towel a can smoothly enter the feeding conveyor belt 2.

[0094] At the same time, the wet tissue production system of this embodiment includes two flip conveyor belts 3 as described above, and the two flip conveyor belts 3 are arranged side by side; the spray unit 34 is arranged directly above the horizontal conveying channel b and adds cleaning liquid to the tissues a on the flip conveyor belts 3 through both sides of the horizontal conveying channel b.

[0095] In this embodiment, the spray unit 34 includes a power pump 341 and a spray head 342; the power pump 341 is connected to an external raw material box and is used to provide cleaning liquid to the spray head 342; the spray head 342 is located directly above the horizontal conveying channel b.

[0096] As a preferred embodiment of this embodiment, the spray head 342 is connected to the frame 6 via a sliding pair.

[0097] The working principle of this embodiment is as follows: a series of paper towels a enter the horizontal conveying channel b from the axis of the first turntable 3111, and then the series of paper towels a are transported along the horizontal conveying channel b driven by the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 until the position sensor 109 detects the paper towel a at the front end, the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 stop working, the rotation drive component of the flip unit 31 works to drive the first turntable 3111 and the second turntable 3121 to rotate 90° clockwise synchronously, and at this time the first blocking module 331 works to make the support plate 331 One side of the horizontal conveying channel b is closed to prevent the paper towel a from falling due to its own weight, while the other side of the horizontal conveying channel b is in an open state, the spray unit 34 moves to the open side of the horizontal conveying channel b to add cleaning liquid to the paper towel a, and then the first turntable 3111 and the second turntable 3121 are synchronously rotated 180° counterclockwise, and similarly, the spray unit 34 adds cleaning liquid to the other side of the paper towel a, and after completion, the first turntable 3111 and the second turntable 3121 are synchronously rotated 90° clockwise to restore the starting state, and the first horizontal conveyor belt 321 and the second horizontal conveyor belt 322 work again to output the paper towel a.

[0098] At the same time, since there are two flip conveyor belts 3 in this embodiment and the two are arranged side by side, when one flip conveyor belt 3 outputs the paper towel a, the spray unit 34 moves to the other flip conveyor belt 3 through the sliding pair to perform the same operation to add cleaning liquid.

[0099] Of course, this embodiment only provides one of the operating modes, and those skilled in the art may also make adaptive changes according to actual scenarios, production volume and other factors, such as setting multiple groups of spray heads 342 corresponding to multiple flip conveyor belts 3 one by one.

[0100] In this embodiment, the wet tissue production system further includes a temporary storage conveyor belt 4 and a discharge conveyor belt 5; the number of the temporary storage conveyor belts 4 is equal to that of the wet tissue production line and they are arranged one by one, and all the temporary storage conveyor belts 4 can be moved to the discharge conveyor belt 5 and the two are connected to output the tissue a. More specifically, in this embodiment, there are two temporary storage conveyor belts 4, and the discharge conveyor belt 5 is arranged between the two temporary storage conveyor belts 4. When the temporary storage conveyor belt 4 moves to the discharge conveyor belt 5, the two are connected end to end to transport the tissue a. Of course, in actual application, sensors for detecting tissue a are provided at both the temporary storage conveyor belt 4 and the discharge conveyor belt 5.

[0101] In this embodiment, the temporary storage conveyor belts 4 are all arranged on a fixed frame 41 , and the fixed frame 41 is provided with a third slide rail 411 and two cylinders respectively used for driving each temporary storage conveyor belt 4 to move along the third slide rail 411 .

[0102] In summary, the wet tissue production process in this embodiment is as follows: tissue a enters the diverter conveyor belt 1 from the previous process, and with the cooperation of the controller and various sensors, the diverter conveyor belt 1 transfers a specified number of tissues a to the loading conveyor belt 2, and the loading conveyor belt 2 compactly arranges these tissues a into a group of tissues a (at the same time, the diverter conveyor belt 1 switches to another loading conveyor belt 2 to transfer a specified number of tissues a), and then the loading conveyor belt 2 transfers a group of tissues a to the flipping conveyor belt 3. After receiving the group of tissues a, the flipping conveyor belt 3 presses down and flips it, so that the spray unit 34 can add cleaning liquid to the upper and lower sides of the tissue a to obtain a group of wet tissues, and then the flipping conveyor belt 3 transfers a group of wet tissues to the temporary storage conveyor belt 4. After the temporary storage conveyor belt 4 obtains a group of wet tissues, it moves to the unloading conveyor belt 5, thereby conveying the wet tissues to the next process.

[0103] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wet tissue production line, comprising a frame, a controller, a feeding conveyor belt and a flip conveyor belt connected in sequence, characterized in that: The feeding conveyor belt is used to arrange multiple stacks of paper towels compactly side by side; the overturning conveyor belt is used to compress and overturn the paper towels; and a spray unit for adding cleaning liquid to the paper towels is provided at the overturning conveyor belt.

2. The wet tissue production line according to claim 1, characterized in that: A limiting mechanism for intermittently blocking paper towels is provided at the end of the feeding conveyor belt; the feeding conveyor belt is composed of multiple sections of conveyor belts connected end to end in sequence; the multiple sections of the conveyor belts are respectively provided with driving mechanisms and each section of the conveyor belt can operate independently; the controller is used to control whether the limiting mechanism and the driving mechanism of each section of the conveyor belt are working; the length of the conveyor belt is greater than or less than N times the length of the paper towel.

3. The wet tissue production line according to claim 1, characterized in that: The overturning conveyor belt comprises an overturning unit and a conveying unit, wherein the overturning unit is arranged on a frame; and the conveying unit is arranged on the overturning unit; The flip unit includes a first rotating module and a second rotating module which are symmetrically arranged; the first rotating module and the second rotating module rotate synchronously to drive the conveying unit to rotate; The conveying unit includes a first horizontal conveyor belt and a pressurizing module; one end of the first horizontal conveyor belt is connected to the first rotating module, and the other end of the first horizontal conveyor belt is connected to the second rotating module; one end of the pressurizing module is slidably connected to the first rotating module, and the other end of the pressurizing module is slidably connected to the second rotating module; the pressurizing module is arranged directly above the first horizontal conveyor belt and is used to clamp paper towels; a horizontal conveying channel for conveying paper towels is formed between the first horizontal conveyor belt and the pressurizing module.

4. The wet tissue production line according to claim 3, characterized in that: The first rotating module comprises a first rotating disk and a first positioning wheel; there are a plurality of first positioning wheels, and the plurality of first positioning wheels are respectively arranged on the frame; the first rotating disk abuts against the plurality of first positioning wheels to be rotatably positioned on one side of the frame; The second rotating module includes a second rotating disk and a second positioning wheel; there are multiple second positioning wheels, and the multiple second positioning wheels are respectively arranged on the frame; the second rotating disk abuts against the multiple second positioning wheels to be rotatably positioned on the other side of the frame; The first rotating module or the second rotating module is provided with a gear plate; the gear plate is connected to a rotating driving assembly for driving the first rotating module and the second rotating module to rotate synchronously.

5. The wet tissue production line according to claim 3, characterized in that: The pressurizing module is a second horizontal conveyor belt; the first horizontal conveyor belt and the second horizontal conveyor belt run synchronously.

6. The wet tissue production line according to claim 3, characterized in that: It also includes an anti-drop unit arranged on the flip unit; the anti-drop unit is used to close or open both sides of the horizontal conveying channel.

7. The wet tissue production line according to claim 6, characterized in that: The anti-drop unit comprises a first blocking module and a second blocking module which are symmetrically arranged; the first blocking module and the second blocking module can operate independently and are respectively used to close or open one side of the horizontal conveying channel.

8. The wet tissue production line according to claim 3, characterized in that: The spray unit is arranged just above the horizontal conveying channel and adds cleaning liquid to the paper towels on the flip conveyor belt through both sides of the horizontal conveying channel.

9. A wet tissue production system, characterized in that: It comprises at least two wet tissue production lines as claimed in any one of claims 1 to 8, and further comprises a diverter conveyor belt; The diversion conveyor belt is provided with a feeding channel, a diversion channel and a swing mechanism; the number of the diversion channels is equal to the number of wet tissue production lines and they are arranged one-to-one; the swing mechanism is used to drive the feeding channel to move to any diversion channel and connect the two to input the tissues into the feeding conveyor belt.

10. The wet tissue production system according to claim 9, characterized in that: It also includes a temporary storage conveyor belt and a discharge conveyor belt; the number of the temporary storage conveyor belts is equal to that of the wet tissue production line and they are arranged one by one, and all the temporary storage conveyor belts can be moved to the discharge conveyor belt and connect the two to output the tissues.

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