Continuous automatic production device for wet wipes

Abstract

The application provides a continuous automatic production device for wet paper towel, comprising: a paper towel folding mechanism, which comprises a support and a tension adjusting mechanism, a first folding assembly, a second folding assembly, a folding roller and a conveyor belt arranged on the support; a second tension adjusting mechanism for adjusting the tension of the plurality of parallel arranged dry paper towels cut by the cutting mechanism; the first folding assembly forms a first slit in the form of a fold line, which is used for one-time pre-folding of the dry paper towel; the second folding assembly forms a second slit in the form of a fold line, which is used for two-time pre-folding of the dry paper towel; the folding roller and the conveyor belt are used for outputting the two-time pre-folded dry paper towel after being pressed and folded. The first folding assembly and the second folding assembly are used for two-time pre-folding, so that the dry paper towel can be pulled and limited, and deviation of the dry paper towel is prevented, so that complex deviation correction and control are not needed. In addition, the application further realizes further utilization of small-size cloth.

Description

Technical Field

[0001] This invention relates to a continuous automated production device for wet wipes. Background Technology

[0002] Currently, in the manufacturing process of wet wipes, non-woven fabric is required as a carrier for the raw liquid. To facilitate production and transportation, manufacturers generally roll the finished fabric into rolls, then cut the rolls into multiple strips of dry paper towels, and fold each strip of dry paper towel into multiple layers. After folding, the folded dry paper towels are stacked, and finally soaked in the raw liquid and cut into sections to form wet wipes, which are then packaged to achieve continuous and automated production.

[0003] However, in the existing technology, during the process of folding each dry paper towel into multiple layers, the current paper towel folding mechanism is prone to uneven force on the dry paper towel and easy deviation during the folding process due to design defects. Therefore, a complex correction mechanism is required for active correction, which makes its control complex and costly. Summary of the Invention

[0004] This invention provides a continuous automated production device for wet wipes, which can effectively solve the above-mentioned problems.

[0005] This invention is implemented as follows:

[0006] A continuous automated production apparatus for wet wipes includes: a wipe folding mechanism, which includes a support and a second tension adjustment mechanism, a first folding assembly, a second folding assembly, a folding roller, and a conveyor belt disposed on the support;

[0007] The second tension adjustment mechanism is used to adjust the tension of multiple parallel strips of dry paper towels after they have been cut by the cutting mechanism;

[0008] The first folding component forms a zigzag-shaped first slit, which is used to pre-fold the dry paper towel once.

[0009] The second folding component forms a zigzag-shaped second slit, which is used for a second pre-folding of the dry paper towel;

[0010] The folding roller and the conveyor belt are used to press and fold the pre-folded dry paper towels before outputting them.

[0011] This invention further provides a continuous automated production apparatus for wet wipes, comprising a roll-changing and fabric-feeding device, a first tension adjustment mechanism, a cutting mechanism, a small-size fabric roll supply device, and a tissue folding mechanism; the roll-changing and fabric-feeding device, the first tension adjustment mechanism, and the cutting mechanism constitute a large-size fabric roll feeding and cutting unit, used to cut the large-size fabric roll into multiple first-size fabric heads; while the small-size fabric roll supply device directly outputs second-size fabric heads, which together output folding material to the tissue folding mechanism; wherein...

[0012] The tissue folding mechanism includes a support frame and a tension adjustment mechanism, a first folding assembly, a second folding assembly, a folding roller, and a conveyor belt mounted on the support frame. The tension adjustment mechanism is used to adjust the tension of multiple parallel strips of dry tissue paper after being cut by the cutting mechanism. The first folding assembly has a zigzag-shaped first slit for pre-folding the dry tissue paper once. The second folding assembly has a zigzag-shaped second slit for pre-folding the dry tissue paper a second time. The folding roller and the conveyor belt are used to press and fold the pre-folded dry tissue paper before outputting it.

[0013] The beneficial effects of this invention are:

[0014] I. The tissue paper folding mechanism provided by the present invention performs secondary pre-folding through the first folding component and the second folding component, thereby pulling and limiting the dry tissue paper to prevent it from deviating. Therefore, there is no need for complex correction and control, which can significantly reduce costs.

[0015] Second, the paper towel folding mechanism provided by the present invention can convert vertically folded dry paper towels into horizontally output folded dry paper towels, thereby significantly improving production efficiency.

[0016] Thirdly, by setting up a small-sized fabric roll supply device, this invention can realize the recycling and utilization of small fabric scraps, thus saving energy and protecting the environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the mechanism of the roll changing and fabric feeding device provided in an embodiment of the present invention.

[0019] Figure 2This is a schematic diagram of the inclined roll-changing and unloading mechanism in the roll-changing and unloading device provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the roll changing and fabric feeding device provided in an embodiment of the present invention in operation.

[0021] Figure 4 This is a schematic diagram of the transmission chain in the inclined roll-changing and unloading mechanism of the roll-changing and unloading device provided in the embodiment of the present invention.

[0022] Figure 5 This is a flowchart of a control method for a roll-changing and fabric-laying device provided in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the tissue folding mechanism provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the first folding component in the tissue folding mechanism provided in an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the structure of the second folding component in the tissue folding mechanism provided in an embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the structure of a small-sized fabric roll supply device provided in an embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the structure of the large-size fabric roll supply device provided in an embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Reference Figure 1-4 As shown, a roll-changing and unloading device includes: an inclined roll-changing and unloading mechanism 10 and a roll-changing and connecting mechanism 20.

[0031] The inclined roll-changing and unloading mechanism 10 includes:

[0032] Two symmetrically arranged supports 11;

[0033] A slide rail 111 is provided on the top of each bracket 10, and the slide rail 111 is inclined.

[0034] The first steering wheel 112 and the second steering wheel 113 are provided at both ends of each slide rail 111, and the third steering wheel 114 and the fourth steering wheel 115 are provided at the bottom of each slide rail 111;

[0035] A drive chain 13 is arranged around the first steering wheel 112 to the fourth steering wheel 115;

[0036] Motor 12 that drives the transmission chain 13;

[0037] The drive component 134 is disposed on the transmission chain 13. The drive component 134 is used to place the rotating shaft of the fabric roll 50 / 51 and drive the rotating shaft to move under the drive of the transmission chain 13.

[0038] The support 11 is mainly used to support the overall weight of the fabric rolls 50 / 51, and can generally be a steel frame structure. As a further improvement, in one embodiment, in order to reduce the overall weight of the support 11, the support 11 also includes a hollow portion 119 in the middle, so that the support 11 as a whole forms a "U-shaped" structure.

[0039] The slide rail 111 has two ends for supporting the working fabric roll 50 and the spare fabric roll 51, respectively. Specifically, the top end of the slide rail 111 supports the spare fabric roll 51, while the bottom end supports the working fabric roll 50. This design allows the spare fabric roll 51 to slide to the bottom of the slide rail 111 under the influence of gravity and the traction of the transmission chain 13 when the working fabric roll 50 is used up. This significantly reduces the mechanical lifting action and thus reduces costs. Preferably, the slide rail 111 forms an angle of 5° to 30° with the horizontal direction. This is because if the angle is too small, the weight of the spare fabric roll 51 sliding down is small, requiring the motor 12 to output more power; furthermore, the tilting fabric changing and unloading mechanism 10 occupies a larger area. When the included angle is too large, on the one hand, the inertia of the spare fabric roll 51 sliding down is large, so the motor 12 or other locking mechanism is easily damaged when braking; on the other hand, when the chain is stationary during use, due to the large gravity, the motor 12 or other locking mechanism bears a large load, which can also easily cause damage. More preferably, the slide rail 111 forms an angle of greater than or equal to 15° and less than or equal to 25° with the horizontal direction. In one embodiment, the slide rail 111 forms an angle of approximately 20° with the horizontal direction.

[0040] The first steering wheel 112, the second steering wheel 113, the third steering wheel 114 and the fourth steering wheel 115 form a quadrilateral mechanism, thereby causing the transmission chain 13 arranged around the first steering wheel 112 to the fourth steering wheel 115 to also form a quadrilateral mechanism.

[0041] The type of motor 12 is not limited, as long as it can drive the transmission chain 13. As a further improvement, the tilting roll-changing and unloading mechanism 10 also includes a locking mechanism. This locking mechanism locks the spare fabric roll 51 when it slides down to the bottom working position, thus switching the spare fabric roll 51 to the working fabric roll 50. Furthermore, the locking mechanism and the motor 12 can be linked; that is, when the spare fabric roll 51 slides down to the bottom working position and is locked by the locking mechanism, a control signal is sent to brake the motor 12. The locking mechanism may include a micro switch, a first motor, and a latch mounted on the shaft of the first motor. When the spare fabric roll 51 slides down to the bottom working position, it triggers the micro switch, which sends a control signal to rotate the first motor, causing the latch on the shaft of the first motor to float up and abut against the shaft of the spare fabric roll 51. Simultaneously, a control signal is sent to brake the motor 12.

[0042] A clearance groove 116 is further formed between the line connecting the second steering wheel 113 and the third steering wheel 114 and the bracket 10 to allow the shaft of the work roll 50 to pass through. The clearance groove 116 is inclined at a predetermined angle, allowing the shaft of the work roll 50 to slide smoothly to the bottom receiving portion 117 without additional collision. Preferably, the clearance groove 116 forms an angle of 10 to 40° with the vertical direction. More preferably, the clearance groove 116 forms an angle of 20 to 30° with the vertical direction. In one embodiment, the clearance groove 116 forms an angle of 25° with the vertical direction.

[0043] The receiving part 117 includes a first connecting part 1171 and a second connecting part 1172. The first connecting part 1171 cooperates with the transmission chain 13 and is connected to the relief groove 116, serving to receive the rotating shaft of the work cloth roll 50. The second connecting part 1172 is set lower than the first connecting part 1171, so that the rotating shaft of the work cloth roll 50 can slide out smoothly due to gravity without getting stuck at the bottom of the bracket 11.

[0044] Please see also Figure 2 The transmission chain 13 is defined as point A at the top of the slide rail 111, point B at the bottom of the slide rail 111, and point C at the connection between the first connecting part 1171 and the second connecting part 1172. The movement of the shaft of the fabric roll 50 / 51 from point A to point B and then to point C is driven by the motor 12, not entirely by its own weight. This is because if it relied entirely on its own weight, the frictional forces exerted by the two supports 10 on the two ends of the shaft of the fabric roll 50 / 51 would be different, causing the shaft to be "offset" and jammed in the support 10, severely affecting production. Therefore, the transmission chain 13 is further divided into three segments at points A, B, and C, and the driving element 134 is respectively installed on the transmission chain 13 at points A, B, and C. This is because when the transmission chain 13 moves from point A to point B, point B is simultaneously moving to point C. At this point, the shaft of the fabric roll 50 / 51 separates from the transmission chain 13 and slides out from the second connecting part 1172, thus achieving continuous production. Specifically, point C is located at the connection between the second connecting part 1172 and the first connecting part 1171.

[0045] Please see also Figure 4The transmission chain 13 includes a chain body 131 and a side plate 132 disposed on one side of the chain body 131. The side plate 132 is provided with a through hole 133 for fixing the driving member 134. The driving member 134 can be threaded into the through hole 133 to fix the driving member 134. The driving member 134 may include two spaced apart, and the shaft of the fabric roll 50 / 51 is disposed between the two driving members 134. When the chain body 131 moves forward, the driving member 134 also moves forward, thereby driving the shaft of the fabric roll 50 / 51 to move forward. The position of the chain body 131 at the slide rail 111 is parallel to the slide rail 111 and lower than the slide rail 111, so that the pressure of the fabric roll 50 / 51 is borne by the slide rail 111, while the chain body 131 is not subjected to force. It is understood that the drive component 134 needs to protrude from the surface of the slide rail 111 in order to drive the rotation of the cloth roll 50 / 51.

[0046] As a further improvement, the inclined roll-changing and unwinding mechanism 10 further includes a first photoelectric sensor 14, which is used to detect whether the unwinding of the working roll 50 has ended, and if so, to further control the roll-changing and connecting mechanism 20 to work.

[0047] As a further improvement, the tilting roll-changing and unloading mechanism 10 further includes a second photoelectric sensor 15, which is disposed on the bracket 11 between the spare roll 51 and the working roll 50. The second photoelectric sensor 15 is used to obtain the diameter of the spare roll 51. When the working roll 50 is unwound and the roll-changing and connecting mechanism 20 is successfully connected, the spare roll 51 starts working in the standby position for a predetermined time. When the second photoelectric sensor 15 detects that the diameter of the spare roll 51 is lower than a predetermined diameter R, that is, after working in the standby position for a predetermined time, it starts to control the spare roll 51 to switch from the top standby position to the bottom working position. The advantage of this is that the height of the roll-changing and connecting mechanism 20 can be reduced, thereby reducing the volume of the entire roll-changing and unloading device. The first photoelectric sensor 14 and the second photoelectric sensor 15 are both prior art and will not be described in detail here.

[0048] The roll-changing and connecting mechanism 20 includes:

[0049] Support plate 21; and

[0050] A first guide shaft 22, a cutting blade 23, a pressing component, a second guide shaft 25, and a third guide shaft 26 are disposed on the support plate 21. The pressing component includes a first pressing head 24 and a second pressing head 27 facing each other; the first guide shaft 22 and the second guide shaft 25 are respectively disposed at the top of the bottom of the first pressing head 24, and the cutting blade 23 is disposed between the first guide shaft 22 and the first pressing head 24; the third guide shaft 26 is disposed at the bottom of the second pressing head 27. The working fabric roll 50 sequentially passes through the first guide shaft 22, the cutting blade 23, the pressing component, and the second guide shaft 25 to provide working fabric 501 to the first tension adjustment mechanism 30. The spare fabric head 511 of the spare fabric roll 51 is fixedly disposed on the second pressing head 27 via the third guide shaft 26. Specifically, the spare fabric head 511 of the spare fabric roll 51 can be pre-attached with double-sided tape, and the spare fabric head 511 of the spare fabric roll 51 is fixed to the surface of the working fabric roll 50 on the second pressing head 27 by the double-sided tape. When the first photoelectric sensor 14 detects that the working fabric roll 50 has finished unwinding, it controls the pressing members to squeeze each other, so that the working fabric 501 and the spare fabric head 511 are pressed together, and further controls the cutting blade 23 to cut the remaining fabric of the working fabric 501.

[0051] As a further improvement, the fabric changing and unloading device further includes a first tension adjustment mechanism 30 for adjusting the overall tension of the working fabric 501. The first tension adjustment mechanism 30 includes a plurality of horizontally arranged first reversing shafts 32, a second reversing shaft 33 disposed at the bottom of the first reversing shafts 32, a third reversing shaft 34 disposed on the upper side of the first reversing shafts 32, and a fourth reversing shaft 35. The working fabric 501 passes through the first reversing shafts 32, second reversing shafts 33, third reversing shafts 34, and fourth reversing shafts 35 to adjust its tension, thereby achieving a stable tension output. Specifically, in one embodiment, the working fabric 501 sequentially passes through the first reversing shaft 32, second reversing shaft 33, first reversing shaft 32, second reversing shaft 33, first reversing shaft 32, third reversing shaft 34, fourth reversing shaft 35, and third reversing shaft 34 to adjust its tension, thereby achieving a stable tension output.

[0052] As a further improvement, the fabric changing and unloading device further includes a cutting mechanism 40 for cutting the working fabric 501. The cutting mechanism 40 is prior art and will not be described in detail here.

[0053] Please refer to Figure 5 The present invention further provides a control method for a roll-changing and unloading device, comprising the following steps:

[0054] S1, control the continuous unwinding of the work roll 50;

[0055] S2, after the working fabric roll 50 is unwound, the roll changing and connecting mechanism 20 is controlled to press the working fabric 501 and the spare fabric head 511 together, and the cutting blade 23 is further controlled to cut the remaining fabric of the working fabric 501.

[0056] S3, the motor 12 is controlled to operate, causing the spare fabric roll 51 to slide to the working position. At this time, the shaft of the working fabric roll 50 slides through the relief groove 116 to the receiving part 117 for recycling. The control method of the present invention also has the characteristics of reducing energy consumption, saving energy and protecting the environment, and being easy to industrialize.

[0057] In step S1, the first photoelectric sensor 14 can continuously detect whether the work fabric 501 of the work roll 50 has finished unwinding, thereby determining whether the unwinding of the work roll 50 has ended. Please refer to [link / reference]. Figure 3 ,from Figure 3 The first photoelectric sensor 14 will continuously emit a signal to detect whether the work fabric 501 has finished feeding. When the first photoelectric sensor 14 does not detect a signal, it means that the work fabric 501 has finished feeding.

[0058] In step S2, since double-sided tape is pre-applied to the spare fabric head 511, when the first photoelectric sensor 14 detects that the unwinding of the working fabric roll 50 is finished, it controls the pressing members to press against each other, so that the working fabric 501 and the spare fabric head 511 are pressed and bonded together, and further controls the cutting blade 23 to cut the remaining fabric of the working fabric 501.

[0059] In step S3, controlling the motor 12 to slide the spare fabric roll 51 to the working position specifically includes:

[0060] S31, the diameter of the spare fabric roll 51 is obtained by the second photoelectric sensor 15. When the diameter of the spare fabric roll 51 is less than the set value R, the motor 12 is controlled to work so that the spare fabric roll 51 slides to the working position; otherwise, the spare fabric roll 51 is first controlled to work in the standby position for a predetermined time until the diameter of the spare fabric roll 51 is less than the set value R, and then the motor 12 is controlled to work so that the spare fabric roll 51 working in the standby position slides to the working position.

[0061] It is understood that in step S31, the diameter of a typical fabric roll is defined as r, therefore, the set value R can be 0.5r to 0.8r. In one embodiment, the set value R can be 0.7r. The diameter of a typical fabric roll is about 100cm, therefore, the set value R can be about 50 to 80cm. In one embodiment, the set value R can be 70cm. That is, in step S31, when the diameter of the inserted spare fabric roll 51 is 70cm, the motor 12 is directly controlled to work, causing the spare fabric roll 51 to slide to the working position; when the diameter of the inserted spare fabric roll 51 is 100cm, the spare fabric roll 51 is first controlled to work in the spare position for a predetermined time until the diameter of the spare fabric roll 51 is less than 70cm, and then the motor 12 is controlled to work, causing the spare fabric roll 51 working in the spare position to slide to the working position.

[0062] Following step S3, the following may further be included:

[0063] When the motor 12 is controlled to work and the spare fabric roll 51 is slid to the working position, another spare fabric roll 51 is placed in the spare position, and then its spare fabric head 511 is pre-attached with double-sided tape and fixed on the second pressing head 27.

[0064] The cutting mechanism 40 cuts the working fabric 501 to form multiple parallel dry paper towels 502. The parallel dry paper towels 502 enter the paper towel folding mechanism 60 for folding, and finally the folded dry paper towels 502 are soaked in liquid and cut into sections to form wet paper towels.

[0065] Please see also Figure 6-8 , Figure 6 This is a schematic diagram of the tissue folding mechanism 60, which includes a support 61, a second tension adjustment mechanism 62, a first folding assembly 63, a second folding assembly 64, a folding roller 65, and a conveyor belt 66. The second tension adjustment mechanism 62, the first folding assembly 63, the second folding assembly 64, the folding roller 65, and the conveyor belt 66 are all mounted on the support 61.

[0066] The second tension adjustment mechanism 62 is used to receive multiple parallel strips of dry paper towels 502 after being cut by the cutting mechanism 40. In one embodiment, the second tension adjustment mechanism 62 includes a first roller 621, a second roller 622, and a third roller 623, wherein the first roller 621 is disposed on top of the second roller 622, and the third roller 623 is disposed in front of the second roller 622. The multiple parallel strips of dry paper towels 502 pass sequentially through the first roller 621, the second roller 622, and the third roller 623 into the first folding assembly 63.

[0067] The first folding assembly 63 forms a zigzag-shaped first slit. This first slit accommodates the dry paper towel 502, and its total length is adapted to the width of the dry paper towel 502. Because the first slit is zigzag-shaped, the dry paper towel 502 undergoes a pre-fold at the first slit. After the first pre-fold, the dry paper towel 502 enters the second folding assembly 64 for a second pre-fold. The second folding assembly 64 also forms a zigzag-shaped second slit. The second slit performs a second pre-fold on the dry paper towel 502. The number of folds in the second slit is the same as the number of folds in the first slit, and the angle at the fold of the second slit is smaller than the angle at the fold of the first slit, allowing the dry paper towel 502 to be continuously folded down with the same number of folds. Finally, the dry paper towel 502, after the second pre-fold, is pressed into the corresponding number of layers by the folding roller 65 and the conveyor belt 66. Compared to other folding mechanisms, the folding assembly provided by this invention uses a folded-line gap for secondary folding, thereby avoiding the use of other correction mechanisms and eliminating the need for repeated corrections. This allows the dry paper towel 502 to be folded vertically and then output laterally, achieving continuous, automated, and efficient production of wet paper towels. The number of folds formed by the first folding assembly 63 and the second folding assembly 64 can be 2-8 folds. Preferably, the number of folds formed by the first folding unit 63 and the second folding unit 64 can be 3-5 folds. Too many folds can easily lead to uneven friction, resulting in deviation and affecting production. In one embodiment, both the first folding unit 63 and the second folding unit 64 include 3 folds, thereby folding the dry paper towel 502 into 3 folds (layers).

[0068] Specifically, the first folding component 63 includes:

[0069] A first folding plate 631 has a first fold line portion 6312 on one side;

[0070] The second folding plate 632 has a second folding portion 6322 adapted to the first folding portion 6312, and a first gap is formed between the first folding portion 6312 and the second folding portion 6322.

[0071] Specifically, the first folding plate 631 also has parallel first rectangular locking holes 6311, and the second folding plate 632 also has parallel second rectangular locking holes 6321. The first folding plate 631 and the second folding plate 632 are fixedly mounted on the support frame 633 through the rectangular locking holes and bolts 634. It can be understood that the width of the first gap can be adjusted by the arrangement of the first rectangular locking holes 6311 and the second rectangular locking holes 6321. The number of the first folded section 6312 and the second folded section 6322 can be selected according to the actual number of folded layers required, preferably 2-6. In one embodiment, it includes 3 first folded sections 6312 and 3 second folded sections 6322. The included angle between two adjacent first folded sections 6312 or second folded sections 6322 is α. Preferably, the value of α is 70-110°, more preferably, the value of α is 80-100°. In one embodiment, the value of α is approximately 90°. It is understandable that by controlling the angle, the first folded portion 6312 and the second folded portion 6322 can pull and limit the dry paper towel 502, thereby preventing it from deviating. Experiments have shown that when the value of α is too small, the frictional force generated is too large, which can easily lead to uneven friction and cause deviation.

[0072] Specifically, the second folding component 64 includes:

[0073] The third folding plate 641 has a third fold line portion 6412 on one side of the first folding plate 641;

[0074] The fourth folding plate 642 has a fourth folding portion 6422 adapted to the third folding portion 6412, and a second gap is formed between the third folding portion 6412 and the fourth folding portion 6422.

[0075] Specifically, the third folding plate 641 also has a parallel third rectangular locking hole 6411, and the fourth folding plate 642 also has a parallel fourth rectangular locking hole 6421. The third folding plate 641 and the fourth folding plate 642 are fixedly mounted on the support frame 643 through the rectangular locking holes and bolts 644. It can be understood that the width of the second gap can be adjusted by the arrangement of the third rectangular locking hole 6411 and the fourth rectangular locking hole 6421. The number of the third folding section 6412 and the fourth folding section 6422 can be selected according to the actual number of folded layers required, preferably 2-6. In one embodiment, it includes 3 third folding sections 6412 and 3 fourth folding sections 6422. The included angle between two adjacent third folding sections 6412 or fourth folding sections 6422 is β. Preferably, the value of β is 10-50°, more preferably, the value of β is 15-30°. In one embodiment, the value of β is approximately 20°. It is understandable that by controlling the angle, the third folding section 6412 and the fourth folding section 6422 can pull and limit the dry paper towel 502, thereby preventing it from deviating. Tests have shown that when the angle β is too small, the friction generated by the second folding component 64 during the folding process is too large, which can easily cause uneven force on one side and make it easier for the paper towel to deviate.

[0076] The first folding assembly 63, the second folding assembly 64, and the folding roller 65 can be arranged in pairs on the bracket 61 to stack the folded dry paper towels 502 before subsequent impregnation and cutting. The number of pairs of the first folding assembly 63, the second folding assembly 64, and the folding roller 65 is not limited, and can be 1-20 pairs; however, this is not specified here. In one embodiment, it includes 3 pairs of the first folding assembly 63, the second folding assembly 64, and the folding roller 65.

[0077] Both the working fabric roll 50 and the spare fabric roll 51 are large-sized fabric rolls with a width greater than or equal to 500 mm. They can generally reach around 1500 mm. In other words, the inclined roll-changing and unloading mechanism 10 provides a structure for large-sized fabric rolls.

[0078] Please see also Figure 9 A small-size fabric roll supply device 70 can be further provided on one side of the inclined roll-changing and unloading mechanism 10. In actual operation, customers have different requirements for fabric roll size. For example, the actual standard produced fabric roll size is generally 1800mm, while the customer's required size is 1500mm. Therefore, it needs to be cut. The cut 30mm fabric rolls form small-size fabric rolls. These small-size fabric rolls are generally difficult to use alone. In order to avoid waste, a small-size fabric roll supply device 70 can be further provided on one side of the inclined roll-changing and unloading mechanism 10 to further utilize them.

[0079] The small-sized fabric roll supply device 70 includes:

[0080] Symmetrically arranged support bases 71, wherein each support base 71 is provided with an arc-shaped groove 72 for accommodating a small-sized fabric roll 52;

[0081] And the fifth reversing shaft 73 and the sixth reversing shaft 74;

[0082] The fabric head 521 of the small-sized fabric roll 52 is reversed by the fifth reversing shaft 73 and the sixth reversing shaft 74, and then folded into the tissue folding mechanism 60. Since the fabric head 521 of the small-sized fabric roll supply device 70 is narrow, it needs to be used in conjunction with the inclined roll-changing and unloading mechanism 10 and the roll-changing and connecting mechanism 20.

[0083] This invention also provides a continuous automated production device for wet wipes, which includes the aforementioned mechanisms. Specifically, the continuous automated production device for wet wipes includes a roll-changing and fabric-laying device, a first tension adjustment mechanism 30, a cutting mechanism 40, and a tissue-folding mechanism 60. In other embodiments, the continuous automated production device for wet wipes includes a roll-changing and fabric-laying device, a first tension adjustment mechanism 30, a cutting mechanism 40, a small-size fabric roll supply device 70, and a tissue-folding mechanism 60. The roll-changing and fabric-laying device, the first tension adjustment mechanism 30, and the cutting mechanism 40 form a large-size fabric roll laying and cutting unit, cutting the large-size fabric roll into multiple first-size small fabric scraps; while the small-size fabric roll supply device 70 directly outputs second-size fabric scraps, and the small-size and second-size fabric scraps are jointly output to the tissue-folding mechanism 60 for folding, thereby realizing the recycling and utilization of small fabric scraps, saving energy and protecting the environment.

[0084] Please see also Figure 10 The cloth roll changing and unloading device is not limited to the above-mentioned mechanism, but can also be selected from the existing cloth roll unloading device 80, which includes: symmetrically arranged support seats 81, wherein each support seat 81 is provided with an arc-shaped groove 82 for accommodating a large-size cloth roll 51; and a seventh reversing shaft 83. The large-size cloth head 511 provided by the cloth roll unloading device 80 is cut by the cutting mechanism 40 and then adjusted by the tension adjustment mechanism 30 and output to the tissue folding mechanism 60.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A continuous automated production device for wet wipes, characterized in that, include: The tissue folding mechanism (60) includes a support (61) and a tension adjustment mechanism (62) disposed on the support (61), a first folding assembly (63), a second folding assembly (64), a folding roller (65), and a conveyor belt (66). The tension adjustment mechanism (62) is used to adjust the tension of the multiple parallel dry paper towels (502) after being cut by the cutting mechanism (40); The first folding component (63) has a zigzag-shaped first slit, which is used to pre-fold the dry paper towel (502) once; The second folding component (64) has a zigzag-shaped second slit, which is used for a second pre-folding of the dry paper towel (502); The folding roller (65) and the conveyor belt (66) disposed below the folding roller (65) are used together to directly press and fold the pre-folded dry paper towel (502) and output it. The folding roller (65) is used to change the direction of the pre-folded dry paper towel (502) in the vertical direction to the horizontal direction. The first folding assembly (63), the second folding assembly (64), and the folding roller (65) are arranged vertically side by side on the bracket (61) to stack the folded dry paper towels (502) before subsequent soaking and cutting. Both the first folding component (63) and the second folding component (64) include three fold lines, which can fold the dry paper towel (502) into three folds; The first folding assembly (63) includes: a first folding plate (631), one side of which has a first fold line portion (6312); a second folding plate (632), which has a second fold line portion (6322) adapted to the first fold line portion (6312), the first fold line portion (6312) and the second fold line portion (6322) forming the first gap, the included angle between two adjacent first fold line portions (6312) or two adjacent second fold line portions (6322) is α, and the value of α is 90°; The second folding assembly (64) includes: a third folding plate (641), one side of which has a third fold line portion (6412); and a fourth folding plate (642), which has a fourth fold line portion (6422) adapted to the third fold line portion (6412), wherein the second gap is formed between the third fold line portion (6412) and the fourth fold line portion (6422), and the included angle between two adjacent third fold line portions (6412) or adjacent fourth fold line portions (6422) is β, wherein the value of β is 20°.

2. The continuous automated production device for wet wipes as described in claim 1, characterized in that, The first folding plate (631) also has a first rectangular lock hole (6311) arranged in parallel, and the second folding plate (632) also has a second rectangular lock hole (6321) arranged in parallel. The first folding plate (631) and the second folding plate (632) are fixedly mounted on the support frame (633) by the rectangular lock hole and bolts (634).

3. The continuous automated production device for wet wipes as described in claim 2, characterized in that, The third folding plate (641) also has a third rectangular lock hole (6411) arranged in parallel, and the fourth folding plate (642) also has a fourth rectangular lock hole (6421) arranged in parallel. The third folding plate (641) and the fourth folding plate (642) are fixedly mounted on the support frame (643) by rectangular lock holes and bolts (644).

4. The continuous automated production device for wet wipes as described in claim 1, characterized in that, The first folding assembly (63), the second folding assembly (64), and the folding roller (65) are arranged in pairs on the bracket (61).

5. A continuous automated production device for wet wipes, characterized in that, The continuous automated production device for wet wipes includes a roll-changing and fabric-feeding device, a first tension adjustment mechanism (30), a cutting mechanism (40), a small-size fabric roll supply device (70), and a tissue folding mechanism (60). The roll-changing and fabric-feeding device, the first tension adjustment mechanism (30), and the cutting mechanism (40) form a large-size fabric roll feeding and cutting unit, used to cut the large-size fabric roll into multiple first-size fabric heads. The small-size fabric roll supply device (70) directly outputs second-size fabric heads, which together output folding to the tissue folding mechanism (60). The tissue folding mechanism (60) includes a support (61) and a tension adjustment mechanism (62), a first folding assembly (63), a second folding assembly (64), a folding roller (65), and a conveyor belt (66) disposed on the support (61). The tension adjustment mechanism (62) is used to adjust the tension of multiple parallel dry tissues (502) after being cut by the cutting mechanism (40). The first folding assembly (63) has a folded first slit, which is used to pre-fold the dry tissues (502) once. The second folding assembly (64) has a folded second slit, which is used to pre-fold the dry tissues (502) a second time. The folding roller (65) and the conveyor belt (66) disposed below the folding roller (65) are used together to press and fold the pre-folded dry tissues (502) before outputting them. The first folding assembly (63), the second folding assembly (64), and the folding roller (65) are arranged vertically side by side on the bracket (61) to stack the folded dry paper towels (502) for subsequent soaking and cutting; the first folding unit (63) and the second folding unit (64) each include 3 fold lines, so that the dry paper towels (502) can be folded into 3 folds; The first folding assembly (63) includes: a first folding plate (631), one side of which has a first fold line portion (6312); a second folding plate (632), which has a second fold line portion (6322) adapted to the first fold line portion (6312), the first fold line portion (6312) and the second fold line portion (6322) forming the first gap, the included angle between two adjacent first fold line portions (6312) or two adjacent second fold line portions (6322) is α, and the value of α is 90°; The second folding assembly (64) includes: a third folding plate (641), one side of which has a third fold line portion (6412); and a fourth folding plate (642), which has a fourth fold line portion (6422) adapted to the third fold line portion (6412), wherein the second gap is formed between the third fold line portion (6412) and the fourth fold line portion (6422), and the included angle between two adjacent third fold line portions (6412) or adjacent fourth fold line portions (6422) is β, wherein the value of β is 20°. The roll changing and unloading device includes: an inclined roll changing and unloading mechanism (10) and a roll changing and connecting mechanism (20). The inclined roll-changing and unloading mechanism (10) includes: two symmetrically arranged supports (11); a slide rail (111) at the top of each support (11), and the slide rail (111) is inclined; a first steering wheel (112) and a second steering wheel (113) at both ends of each slide rail (111), a third steering wheel (114) and a fourth steering wheel (115) at the bottom of each slide rail (111); a transmission chain (13) surrounding the first steering wheel (112) and the fourth steering wheel (115); a motor (12) driving the transmission chain (13); and a drive member (134) on the transmission chain (13), the drive member (134) being used to place the rotating shaft of the roll (50 / 51) and driving the rotating shaft to move under the drive of the transmission chain (13); The roll-changing and splicing mechanism (20) includes: a support plate (21); and a first guide shaft (22), a cutter (23), a pressing component, a second guide shaft (25), and a third guide shaft (26) disposed on the support plate (21); the pressing component includes a first pressing head (24) and a second pressing head (27) disposed opposite to each other; and the first guide shaft (22) and the second guide shaft (25) are respectively disposed at the top of the bottom of the first pressing head (24), the cutter (23) is disposed between the first guide shaft (22) and the first pressing head (24); the third guide shaft (26) is disposed at the bottom of the second pressing head (27).

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