Wet tissue small continuous drawing structure, forming equipment and forming process

Abstract

The invention provides a wet tissue small continuous drawing structure, forming equipment and a forming process, and belongs to the technical field of hygienic products, the wet tissue small continuous drawing structure comprises a first sheet body, a W-shaped folding structure is formed by folding a sheet, the first sheet body comprises a first folding piece, a second folding piece, a third folding piece and a fourth folding piece, the width of the first folding piece is smaller than that of the second folding piece, and the width of the fourth folding piece is smaller than that of the third folding piece; the width of the second folding sheet is the same as that of the third folding sheet; the width of the fourth folding sheet is greater than that of the second folding sheet or the third folding sheet; by adopting the special-shaped W-shaped folding structure, the structure is simple, the stability is high, and large-scale production and debugging are facilitated. The folding structure is only composed of two reverse special-shaped W-shaped structures, the structure is simple, complex overlapping is avoided, and the structure is stable and reliable; the wet tissue small continuous drawing structure forming equipment is provided with a plurality of adjustable assemblies, the folding size can be rapidly adjusted in the production process, and the production requirements of wet tissues of different specifications are met.

Description

Technical Field

[0001] This invention relates to the field of hygiene products technology, specifically to a small pull-out structure for wet wipes, forming equipment, and forming process. Background Technology

[0002] Wet wipes, as a convenient cleaning and care product, have been widely used in many fields, such as wet toilet paper or other cleaning wipes. "Stable single-sheet continuous draw" is not only a core basic requirement of users for the product, but also a key technical indicator for large-scale production in the industry. However, the current mainstream folding technology solutions in the industry all have irreconcilable defects, which have become a serious problem that restricts the industry from reducing costs and increasing efficiency and damages the core user experience.

[0003] While the "Z" + "V" folding method nominally supports continuous extraction, it is prone to frequent jamming, requiring users to pull forcefully to remove the sheets. Patent application number 200980111549.5 discloses a sheet stack and sheet receiving device, which uses a V-shaped plus Z-shaped stacking method. This structure, on the one hand, can cause tearing and damage to wet wipes with slightly lower strength, such as toilet paper; on the other hand, this type of structure commonly results in multiple sheets being pulled out together, with excess toilet paper quickly losing moisture and becoming ineffective when exposed to air, causing unnecessary waste. More importantly, the repacking of multiple sheets after being pulled out can easily cause internal contamination, significantly reducing user satisfaction and directly impacting brand reputation and repurchase rates.

[0004] Another mainstream method of continuous sheet folding relies on a breakpoint cutter to achieve "single-sheet separation." However, the breakpoint cutter has stringent material requirements, needing to balance sharpness and toughness, resulting in high procurement costs per cutter. Furthermore, in high-frequency cutting production scenarios, the breakpoint cutter wears out extremely quickly, requiring regular machine downtime for replacement. This replacement process is not only time-consuming but also directly interrupts the production flow, severely impacting overall capacity. If worn breakpoint cutters are not replaced in time, incomplete breaks may occur, leaving residual fibers connecting multiple sheets. Even breakpoint cutter failure can occur, with metal blade fragments posing a serious safety hazard and threatening consumer safety.

[0005] Furthermore, in the existing folding method, the process of pulling out the first sheet of wet toilet paper when opening the package is prone to breakage due to single-layer extraction, which seriously affects the user experience. Summary of the Invention

[0006] This invention provides a small, interconnected wet wipe structure, forming equipment, and forming process to solve the technical problems in the prior art.

[0007] To solve the above problems, the wet wipe small drawer structure provided by the present invention adopts the following technical solution: it includes a first sheet body, which forms a W-shaped folded structure by folding the sheet body. The first sheet body includes a first fold, a second fold, a third fold and a fourth fold. The width of the first fold is smaller than the width of the second fold, the width of the second fold and the width of the third fold are the same, and the width of the fourth fold is greater than the width of the second fold or the third fold. The second sheet has the same structure as the first sheet; The wet wipe pull-out structure is formed by alternating layers of the first sheet and the second sheet in the vertical direction. The first sheet and the second sheet are placed in opposite directions, with the second sheet located above the first sheet. The fourth fold of the second sheet is inserted between the first fold and the second fold of the first sheet.

[0008] As a further improvement, the bends of the second and third flaps are located below the opening for dispensing from the packaging bag.

[0009] This invention also provides a wet wipe small drawer structure forming device for preparing the above-mentioned wet wipe small drawer structure, including an A folding plate and a B folding plate, wherein the A folding plate includes: A connector for connecting an external frame, the connector having a U-shaped groove arranged horizontally; Folding fixing bracket, which is fixedly connected to the connecting seat; The left and right side panels include a left side panel and a right side panel. The left side panel is fixedly connected to the folding and fixing frame. The left side panel includes a left guide plate and a left horizontal plate. The right side panel includes a right guide plate, a right side support plate, and a right folding plate. The left and right guide plates are both inclined and gradually narrow at their lower ends, so that the non-woven fabric forms two creases when passing through the left and right guide plates. The fabric folding width adjustment component is installed on the folding fixing frame and is used to adjust the distance between the left side panel and the right side panel. The fabric folding width adjustment component is fixedly connected to the right side panel through a trapezoidal plate. The baffle plate is fixedly connected to the folding and fixing frame by the support column, and a bottom plate is also fixedly connected to the bottom of the baffle plate. The pressure roller is fixed above the base plate by screws; The distributor is fixed to the right side panel with screws. The B-fold plate and the A-fold plate have a symmetrical structure.

[0010] As a further improvement, the folding width adjustment assembly includes a width adjustment screw threadedly connected to the folding fixing frame. The width adjustment screw is set in the horizontal direction, one end of the width adjustment screw is rotatably connected to the trapezoidal plate, and the other end of the width adjustment screw is fixedly installed with a width adjustment knob.

[0011] As a further improvement, the folding fixing frame is also provided with an inner and outer center position adjustment assembly for controlling the insertion depth of the connecting seat. The inner and outer center position adjustment assembly includes a depth adjustment screw connected to the folding fixing frame by a thread, and a depth adjustment knob is fixedly installed at the end of the depth adjustment screw away from the connecting seat.

[0012] This invention also provides a molding process for a small, interconnected wet wipe drawer structure, using the aforementioned equipment for molding small, interconnected wet wipe drawers, and includes the following steps: S1. Single-piece folding molding; The nonwoven fabric passes through the external tension roller to ensure that the nonwoven fabric surface is flat and without creases. The nonwoven fabric enters the A fold plate or B fold plate along the rear surface of the left guide plate and the right guide plate. When the nonwoven fabric is stretched, it passes through the trapezoidal plate and the left and right guide plates. The lower ends of the left and right guide plates gradually narrow, and the nonwoven fabric is subjected to the action of the lower ends of the left and right guide plates, forming two creases and initially forming the third fold. The width of the third fold is controlled by the fold width adjustment component. The fold width adjustment component adjusts the distance between the left and right side plates to control the fold width of the third fold. The greater the distance between the left and right side plates, the greater the fold width of the third fold, and vice versa. After the trapezoidal plate and the left and right guide plates are initially folded, the left side of the third fold is the width of the fourth fold, but at this time the third fold and the fourth fold are on the same plane, and the fourth fold has not been flipped and folded; the right side of the third fold is the total width of the first fold and the second fold. The nonwoven fabric is supported by the lateral force from the right-side support plate. The fourth fold is then flipped and folded by the right-side folding plate. During this process, the fourth fold is subjected to tension, the lateral force from the right-side support plate, and friction with the right-side folding plate. Under the combined action of these forces, the nonwoven fabric completes the flipping and folding of the fourth fold as it moves forward. The width of the fourth fold is controlled by the inner and outer center position adjustment components. With the nonwoven fabric feed position controlled by the tension roller remaining unchanged, the relative position of the third fold is changed by adjusting the inner and outer center positions of the A or B folding plates, thereby controlling the folding width of the fourth fold. The first fold and the second fold are formed after passing through the baffle plate and the pressure roller; the second fold is formed at the bottom oblique side of the baffle plate, and the folding size of the second fold is controlled by the projection size of the bottom oblique side of the baffle plate in the machine direction; the first fold is formed under the pressure of the pressure roller, and the fixed size of the second fold determines the folding size of the first fold.

[0013] S2. Overlapping joints between overlapping sections of single pieces: Fold A and fold B are staggered along the direction of the nonwoven fabric travel, and their directions are consistent. Fold A and fold B form a symmetrical structure to ensure the symmetry of the nonwoven fabric folding structure and to ensure that the lower first fold overlaps with the upper fourth fold.

[0014] As a further improvement, the liquid dispensing structure for adding liquid to wet wipes includes several inclined liquid dispensing tubes, which are inclined at an angle of 20°-45°, and the several liquid dispensing tubes are inserted in layers between stacked cloth layers.

[0015] The beneficial effects of the above-described technical solution of the present invention are as follows: 1. This invention employs an irregularly shaped W-shaped folding structure, which is simple in structure, highly stable, and easy to mass-produce and debug. The folding structure consists of only two opposing irregularly shaped "W" structures, which are simple in structure, without complex overlap, and are stable and reliable.

[0016] The unique W-shaped folding structure design also achieves an orderly, interconnected, and pre-separated extraction mechanism. The bends of the second and third folds are located directly below the extraction opening on the packaging bag. During extraction, the second and third folds serve as the force-bearing points, applying the extraction force to both layers of wet wipes or toilet paper. Compared to a single-pull structure, it can withstand greater tensile force, ensuring it is less prone to breakage during extraction. Furthermore, this structure avoids waste and contamination caused by multiple sheets being pulled out, improving product user satisfaction and brand reputation.

[0017] 2. The wet wipe small drawer forming equipment of the present invention has multiple adjustable components, which facilitates quick adjustment of the folding size during the production process to adapt to the production needs of different specifications of wet wipes. The forming equipment of the present invention does not rely on high-cost and easily worn-out cutting tools, thereby reducing equipment maintenance costs and downtime, and improving production efficiency and stability. Attached Figure Description

[0018] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the small pull-out wet wipe structure of the present invention; Figure 2 This is a stacking effect diagram of the small pull-out wet wipe structure of the present invention; Figure 3 This is a schematic diagram of the structure of the A-fold plate of the wet wipe small continuous drawer structure forming device of the present invention; Figure 4 This is a schematic diagram of the structure of the B-fold plate in the wet wipe small drawer structure forming device of the present invention; Figure 5 This is a front view of the fabrication process for the small pull-out structure of wet wipes according to the present invention. Figure 6 This is a top view of the fabrication process of the wet wipe small pull-out structure forming process of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. First sheet material; 101. First fold; 102. Second fold; 103. Third fold; 104. Fourth fold; 2. Second sheet material; 3. A folding plate; 301. Left guide plate; 302. Right guide plate; 303. Left horizontal plate; 304. Right side support plate; 305. Cloth baffle plate; 306. Base plate; 307. Pressing roller; 308. Right folding plate; 309. Distributor; 310. Connecting seat; 311. Folding fixing frame; 312. Cloth width adjustment assembly; 313. Inner and outer center position adjustment assembly; 4. B folding plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] Existing multi-sheet wet wipes mainly suffer from the problems of multiple sheets being dispensed at once and tearing easily during extraction. These issues are even more pronounced when using slightly weaker wet wipes, such as toilet paper, and during the initial extraction process after opening the pack.

[0022] The concept of this invention is to ensure that the bent part of the wet wipe or wet toilet paper can be stably grasped when it is pulled out, that is, the bend of the second fold 102 and the third fold 103. In this way, the pulling force is applied to the two layers of wet toilet paper, which can withstand greater tension than a single pull structure, ensuring that it is not easy to break when pulled out.

[0023] To address this, the present invention designs an irregular W-shaped folding structure and incorporates design considerations regarding equipment and processes.

[0024] Regarding the stacking structure of the wet wipes, an "orderly, interconnected, and pre-separated" folding form was designed: The wet wipe pull-out structure of the present invention consists of two basic components, namely a first sheet 1 and a second sheet 2. The first sheet 1 and the second sheet 2 are W-shaped wet wipes with opposite directions. The fourth fold 104 of the second sheet 2 is inserted between the first fold 101 and the second fold 102 of the first sheet 1, and this structure is stacked in a loop.

[0025] This overlapping design ensures that when a single sheet is pulled from the opening, the edge of the lower layer of wet toilet paper is already positioned, greatly solving the problem of wet toilet paper sticking together and being pulled out in succession. Users can easily and accurately pull out a single sheet, avoiding the waste caused by pulling out multiple sheets at once with traditional flat-folded wet wipes, or the contamination of the wet toilet paper inside the pack caused by having to stuff them back in manually. Furthermore, the production process is more stable compared to continuous-pulling devices. When the first sheet is pulled out, the stress point is located at the double-fold, resulting in greater tensile strength, less breakage, and a clear center line for easy and intuitive user operation.

[0026] In terms of equipment, easily adjustable A-folding plate 3 and B-folding plate 4 are designed to ensure that the above-mentioned folding structure can be formed accurately and efficiently. The folding width adjustment component 312 controls the width of the corresponding folds by adjusting the distance between the left and right side plates to adapt to different size requirements. The inner and outer center position adjustment component 313 can adjust the overall position of the folding plate 43 to achieve fine control over the overall layout of the folding structure. The distributor 309 is used to stabilize the lower folding structure during stacking to ensure the accuracy and consistency of the overlapping position.

[0027] In terms of process, the molding process needs to be combined with the aforementioned molding equipment to achieve efficient stacking. Multiple liquid-adding tubes are inserted at an angle of 20°-45° between the stacked wet wipes to ensure uniform liquid addition without damaging the structure. This method creates a partially dry, partially wet structure, enhancing the overall deformation resistance and dimensional stability of the wet wipe stack. Simultaneously, controlling the humidity at overlapping areas strengthens interlayer adhesion, further stabilizing the overlap effect.

[0028] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0029] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0030] Example 1 of the wet wipe pull-out structure, molding equipment, and molding process provided by the present invention: like Figure 1 and Figure 2 As shown, the wet wipe small drawer structure includes a first sheet body 1, which forms a W-shaped folded structure by folding the sheet body. The first sheet body 1 includes a first fold 101, a second fold 102, a third fold 103 and a fourth fold 104. The width of the first fold 101 is smaller than the width of the second fold 102. The widths of the second fold 102 and the third fold 103 are the same. The width of the fourth fold 104 is greater than that of the second fold 102 or the third fold 103. The second sheet 2 has the same structure as the first sheet 1; The wet wipes small drawer structure is formed by alternating layers of a first sheet 1 and a second sheet 2 in the vertical direction. The first sheet 1 and the second sheet 2 are placed in opposite directions, with the second sheet 2 located above the first sheet 1. The fourth fold 104 of the second sheet 2 is inserted between the first fold 101 and the second fold 102 of the first sheet 1.

[0031] The bends of the second fold 102 and the third fold 103 are located below the opening of the packaging bag.

[0032] Due to the design of the W-shaped folding structure, the first fold 101 will be hidden in the packaging. The first fold 101 supports the height of both sides, and the gap in the middle reduces the adsorption force between the white pieces, making it easier to pull out; at the same time, it ensures that after opening the seal, only the second fold 102 with the hole in the middle is exposed, making the center line for pulling out obvious.

[0033] When the upper layer of wet toilet paper is pulled to the point where the reverse-shaped W-shaped wet wipes overlap, the upward pulling force will separate the fourth fold 104 from the lower second fold 102. At this time, only the upper fourth fold 104 overlaps with the lower first fold 101. The lower first fold 101 is lifted by the pulling force transmitted by the upper fourth fold 104, the friction between the upper fourth fold 104 and the lower first fold 101, and its own weight.

[0034] Because the width of the perforation opening in wet toilet paper is smaller than the width of the toilet paper itself, the toilet paper deforms as the overlapping area moves from the starting position to the perforation opening. This deformation creates a squeezing force in the parallel direction of the overlapping area. This squeezing force disrupts the balance between friction and tension at the overlapping area. The closer the overlapping area is to the perforation opening, the greater the squeezing force. The greater the squeezing force, the more relative slippage occurs at the contact surface of the overlapping area, resulting in lower interlayer friction. While the tension remains constant, the interlayer friction is minimized when the overlapping area fully reaches the perforation opening. The design of the perforation opening size and the area of ​​the overlapping area ensures the smooth delivery of the next layer of wet toilet paper and controls the area of ​​wet toilet paper leaking out of the perforation opening. This prevents continuous or broken sheets from being pulled out.

[0035] like Figures 2-6 As shown, the wet wipe small drawer structure forming equipment is used to prepare the above-mentioned wet wipe small drawer structure, including A folding plate 3 and B folding plate 4. A folding plate 3 includes a connecting seat 310, a folding fixing frame 311, left and right side plates, a folding width adjustment component 312, a baffle plate 305, a pressure roller 307, and a distributor 309. The connecting seat 310 is used to connect to the external frame, and the connecting seat 310 has a U-shaped groove arranged in a horizontal manner; the folding fixing frame 311 is also provided with an inner and outer center position adjustment component 313 for controlling the insertion depth of the connecting seat 310. The inner and outer center position adjustment component 313 includes a depth adjustment screw that is threadedly connected to the folding fixing frame 311, and a depth adjustment knob is fixedly installed at the end of the depth adjustment screw away from the connecting seat 310.

[0036] The folding fixing frame 311 is fixedly connected to the connecting seat 310. The folding fixing frame 311 is also connected to the left side plate, the folding width adjustment component 312, and the inner and outer center position adjustment component 313 to ensure the connection and stability of the positions of the above parts. The left and right side panels include a left side panel and a right side panel. The left side panel is fixedly connected to the folding fixing frame 311. The left side panel includes a left guide plate 301 and a left horizontal plate 303. The right side panel includes a right guide plate 302, a right side support plate 304 and a right folding plate 308. The left guide plate 301 and the right guide plate 302 are both inclined, and the lower ends of the left guide plate 301 and the right guide plate 302 gradually narrow, so that the non-woven fabric forms two creases when passing through the left guide plate 301 and the right guide plate 302. The fabric width adjustment assembly 312 is installed on the folding fixing frame 311 and is used to adjust the distance between the left side plate and the right side plate. The fabric width adjustment assembly 312 is fixedly connected to the right side plate through a trapezoidal plate. The fabric width adjustment assembly 312 includes a width adjustment screw that is threadedly connected to the folding fixing frame 311. The width adjustment screw is set in the horizontal direction. One end of the width adjustment screw is rotatably connected to the trapezoidal plate, and the other end of the width adjustment screw is fixedly installed with a width adjustment knob.

[0037] The baffle plate 305 is fixedly connected to the folding fixing frame 311 via a support column, and a bottom plate 306 is also fixedly connected to the bottom of the baffle plate 305. The pressure roller 307 is fixed above the base plate 306 by screws. The base plate 306 is mainly used to connect the baffle plate 305 and the pressure roller 307. When the distance between the left and right side plates is adjusted by the folding width adjustment component 312, the base plate 306 moves synchronously to ensure that the relative position of the left side plate with the baffle plate 305 and the pressure roller 307 is stable, and to ensure that the dimensions of the third fold and the second fold are stable.

[0038] The distributor 309 is fixed to the right side plate with screws and its relative position to the right side plate can be adjusted. By adjusting the position of the distributor 309, the size of the lower first fold 101 and the upper fourth fold 104 can be made to coincide. The first fold 101 is located on the upper side of the distributor 309. Folded plate 4 (B) and folded plate 3 (A) are symmetrical structures.

[0039] like Figure 5 and Figure 6As shown, this embodiment also provides a process for forming a small wet wipe drawer structure, using the aforementioned wet wipe small drawer structure forming equipment, including the following steps: S1. Single-piece folding molding; The nonwoven fabric passes through the external tension roller to ensure that the nonwoven fabric surface is flat and without creases. The nonwoven fabric enters the A folding plate 3 or B folding plate 4 along the rear surface of the left guide plate 301 and the right guide plate 302. When the nonwoven fabric is stretched, it passes through the trapezoidal plate and the left guide plate 301 and right guide plate 302. The lower ends of the left guide plate 301 and right guide plate 302 gradually narrow. The nonwoven fabric is subjected to the action of the lower ends of the left guide plate 301 and right guide plate 302, and two creases are formed in the nonwoven fabric, initially forming the third fold 103. The width of the third fold 103 is controlled by the fold width adjustment component 312. The fold width adjustment component 312 adjusts the distance between the left and right side plates to control the fold width of the third fold 103. The greater the distance between the left and right side plates, the greater the fold width of the third fold 103, and vice versa. After the trapezoidal plate and the left guide plate 301 and the right guide plate 302 are initially folded, the left side of the third fold 103 is the width of the fourth fold 104, but at this time the third fold 103 and the fourth fold 104 are on the same plane, and the fourth fold 104 has not been flipped and folded; the right side of the third fold 103 is the total width of the first fold 101 and the second fold 102. The nonwoven fabric is supported by the lateral force of the right-side support plate 304. The fourth fold 104 is then flipped and folded by the right-side folding plate 308. During this process, the fourth fold 104 is subjected to tension, the lateral support force of the right-side support plate 304, and the frictional force with the right-side folding plate 308. Under the combined action of these forces, the nonwoven fabric completes the flipping and folding of the fourth fold 104 during its forward movement. The width of the fourth fold 104 is controlled by the inner and outer center position adjustment component 313. With the nonwoven fabric feed position controlled by the tension roller remaining unchanged, the relative position of the third fold 103 is changed by adjusting the inner and outer center positions of the A folding plate 3 or the B folding plate 4, thereby controlling the folding width of the fourth fold 104. The first fold 101 and the second fold 102 are formed after passing through the baffle plate 305 and the pressure roller 307; the second fold 102 is formed at the bottom oblique side of the baffle plate 305, and the folding size of the second fold 102 is controlled by the projection size of the bottom oblique side of the baffle plate 305 in the machine table direction; the first fold 101 is formed under the pressure of the pressure roller 307, and the fixed size of the second fold 102 determines the folding size of the first fold 101.

[0040] S2. Overlapping joints between overlapping sections of single pieces: Folding plate A3 and folding plate B4 are staggered along the direction of nonwoven fabric travel. The directions of folding plate A3 and folding plate B4 are consistent. Folding plate A3 and folding plate B4 form a symmetrical structure to ensure the symmetry of the nonwoven fabric folding structure and to ensure that the lower first fold 101 and the upper fourth fold 104 overlap.

[0041] like Figure 5 and Figure 6 As shown, folding plate A 3 and folding plate B 4 are staggered to sequentially complete the folding of the first, second, third, and fourth sheets of wet wipes or wet toilet paper.

[0042] During liquid addition, the liquid adding structure for the wet wipes includes several inclined liquid adding tubes, with an inclination angle of 20°-45°. These tubes are inserted layer by layer between stacked wipe layers. The tubes are spaced apart vertically and inserted at different heights between the stacked wipes. Each tube corresponds to one or more layers of wipes for liquid addition, and the number of tubes is adjusted according to the number of wipe layers.

[0043] The strength of nonwoven fabric decreases after liquid is added, and it is more easily stretched in a wet state. The lateral layering liquid addition method ensures that there is a certain proportion of dry nonwoven fabric after liquid addition, which makes the nonwoven fabric have better resistance to deformation in subsequent processing and ensures the stability of product size and appearance.

[0044] Furthermore, the overlapping parts on the outside will definitely be directly humidified by the lateral layered liquid filling tube. After the overlapping parts are moistened by the liquid filling, the interlayer will generate a higher interlayer adhesion force than the dry overlapping nonwoven fabric, so as to ensure the relative stability of the overlapping part position and the overlapping size is more stable, thus ensuring a stable extraction effect.

[0045] This liquid addition method allows for precise addition of the liquid to ensure a stable wet-to-dry ratio of the toilet paper. Under natural placement, the liquid can be evenly applied to the entire stack of toilet paper within 24 hours due to capillary action.

[0046] While various embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of the invention and therefore cover any modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A small drawer structure for wet wipes, characterized in that, include: The first sheet (1) forms a W-shaped folded structure by folding the sheet. The first sheet (1) includes a first fold (101), a second fold (102), a third fold (103), and a fourth fold (104). The width of the first fold (101) is smaller than the width of the second fold (102). The widths of the second fold (102) and the third fold (103) are the same. The width of the fourth fold (104) is greater than that of the second fold (102) or the third fold (103). The second sheet (2) has the same structure as the first sheet (1); The wet wipe small drawer structure is formed by alternating layers of the first sheet (1) and the second sheet (2) in the vertical direction. The first sheet (1) and the second sheet (2) are placed in opposite directions. The second sheet (2) is located above the first sheet (1). The fourth fold (104) of the second sheet (2) is inserted between the first fold (101) and the second fold (102) of the first sheet (1).

2. The wet wipe pull-out structure according to claim 1, characterized in that: The bends of the second fold (102) and the third fold (103) are located below the opening of the packaging bag.

3. A wet wipe small drawer structure forming device, used to prepare the wet wipe small drawer structure as described in any one of claims 1 to 2, comprising an A folding plate (3) and a B folding plate (4), characterized in that, A folding plate (3) includes: A connecting seat (310) is used to connect an external frame. The connecting seat (310) has a U-shaped groove arranged in a horizontal manner. Folding fixing bracket (311), which is fixedly connected to connecting seat (310); The left and right side panels include a left side panel and a right side panel. The left side panel is fixedly connected to the folding fixing frame (311). The left side panel includes a left guide plate (301) and a left horizontal plate (303). The right side panel includes a right guide plate (302), a right side support plate (304), and a right folding plate (308). The left guide plate (301) and the right guide plate (302) are both inclined, and the lower ends of the left guide plate (301) and the right guide plate (302) gradually narrow, so that the non-woven fabric forms two creases when passing through the left guide plate (301) and the right guide plate (302). The folding width adjustment component (312) is installed on the folding fixing frame (311) and is used to adjust the distance between the left side plate and the right side plate. The folding width adjustment component (312) is fixedly connected to the right side plate through a trapezoidal plate. The baffle plate (305) is fixedly connected to the folding fixing frame (311) by the support column, and the bottom plate (306) is also fixedly connected to the bottom of the baffle plate (305). The pressure roller (307) is fixed above the base plate (306) by screws; Distributor (309), which is fixed to the right side panel by screws; The B fold plate (4) and the A fold plate (3) are symmetrical structures.

4. The wet wipe small drawer structure forming equipment according to claim 3, characterized in that: The folding width adjustment assembly (312) includes a width adjustment screw connected to the folding fixing frame (311) by a thread. The width adjustment screw is set in the horizontal direction. One end of the width adjustment screw is rotatably connected to the trapezoidal plate, and the other end of the width adjustment screw is fixedly installed with a width adjustment knob.

5. The wet wipe small drawer structure forming equipment according to claim 3 or 4, characterized in that: The folding fixing frame (311) is also provided with an inner and outer center position adjustment assembly (313) for controlling the insertion depth of the connecting seat (310). The inner and outer center position adjustment assembly (313) includes a depth adjustment screw connected to the folding fixing frame (311) by a thread. A depth adjustment knob is fixedly installed at the end of the depth adjustment screw away from the connecting seat (310).

6. A process for forming a small, continuous drawer structure for wet wipes, using the equipment for forming a small, continuous drawer structure for wet wipes as described in any one of claims 3 to 5, characterized in that, Includes the following steps: S1. Single-piece folding molding; The nonwoven fabric passes through an external tension roller to ensure that the nonwoven fabric surface is flat and without creases. The nonwoven fabric enters the A fold plate (3) or B fold plate (4) along the rear surface of the left guide plate (301) and the right guide plate (302). When the nonwoven fabric is stretched, it passes through the trapezoidal plate and the left guide plate (301) and right guide plate (302). The lower ends of the left guide plate (301) and right guide plate (302) gradually narrow. The nonwoven fabric is subjected to the action of the lower ends of the left guide plate (301) and right guide plate (302), and two creases are formed, initially forming the third fold (103). The width of the third fold (103) is controlled by the fold width adjustment component (312). The distance between the left and right side plates is adjusted by the fold width adjustment component (312) to control the fold width of the third fold (103). The greater the distance between the left and right side plates, the greater the fold width of the third fold (103), and vice versa. After initial folding by the trapezoidal plate, the left guide plate (301), and the right guide plate (302), the left side of the third fold (103) is the width of the fourth fold (104). At this time, the third fold (103) and the fourth fold (104) are on the same plane, and the fourth fold (104) has not been flipped and folded. The right side of the third fold (103) is the total width of the first fold (101) and the second fold (102). The nonwoven fabric is supported by the lateral support force of the right-side support plate (304). The fourth fold (104) is then flipped and folded by the right-side folding plate (308). During this process, the fourth fold (104) is subjected to tension, the lateral support force of the right-side support plate (304), and the friction force with the right-side folding plate (308). Under the combined action of these forces, the nonwoven fabric completes the flipping and folding of the fourth fold (104) during its forward movement. The width of the fourth fold (104) is controlled by the inner and outer center position adjustment component (313). With the nonwoven fabric feed position controlled by the tension roller remaining unchanged, the relative position of the third fold (103) is changed by adjusting the inner and outer center positions of the A folding plate (3) or the B folding plate (4), thereby controlling the folding width of the fourth fold (104). The first fold (101) and the second fold (102) are formed after passing through the baffle plate (305) and the pressure roller (307); the second fold (102) is formed at the bottom oblique side of the baffle plate (305), and the folding size of the second fold (102) is controlled by the projection size of the bottom oblique side of the baffle plate (305) in the machine direction; the first fold (101) is formed under the pressure of the pressure roller (307), and the folding size of the second fold (102) is fixed to determine the folding size of the first fold (101); S2. Overlapping joints between overlapping sections of single pieces: Fold A (3) and fold B (4) are staggered along the direction of nonwoven fabric travel. The directions of fold A (3) and fold B (4) are consistent. Fold A (3) and fold B (4) form a symmetrical structure to ensure the symmetry of the nonwoven fabric folding structure and to ensure that the lower first fold (101) coincides with the upper fourth fold (104).

7. The molding process for the small pull-out wet wipe structure according to claim 1, characterized in that: The liquid dispensing structure for adding liquid to wet wipes includes several inclined liquid dispensing tubes, which are inclined at an angle of 20°-45°, and the several liquid dispensing tubes are inserted in layers between stacked cloth layers.

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