Manufacturing device of telescopic composite sheet for stably compounding covering sheet

Abstract

The utility model relates to a manufacturing device of a telescopic composite sheet for stably compounding a covering sheet, which comprises a compounding roller from which a bottom sheet is guided in; a first nip roller into which the first upper sheet is introduced; a first elastic member arrangement unit corresponding to the first nip roller; a second nip roller into which a second upper sheet is introduced; a second elastic member arrangement unit corresponding to the second nip roller; the output device is arranged on the downstream side of the composite roller; a joint roller is arranged at an outlet of the output device to form a third composite point; an auxiliary device is arranged at the outlet position of the output device; the auxiliary device at least comprises a pair of air suction components which are provided with air suction ports. Air suction ports of the pair of air suction components are aligned to the two sides of the outlet position of the output device so that air suction can be conducted on the first upper-layer sheet and the second upper-layer sheet in the edge, located in the middle of the telescopic composite sheet semi-finished product, of the first upper-layer sheet and the second upper-layer sheet in the width direction. According to the utility model, the first elastic component and the second elastic component are prevented from retracting.

Description

Technical Field

[0001] This utility model relates to the technical field of disposable hygiene product manufacturing equipment, and particularly to disposable diapers, and especially to a manufacturing device for a stable composite covering sheet of stretchable composite sheet. Background Technology

[0002] Disposable diapers, particularly adult diapers, have an absorbent body extending along its length and a pair of side wings disposed on both sides of the absorbent body along its width. The side wings are made of a stretchable composite sheet, which includes a bottom sheet, a first upper sheet, a second upper sheet, a first elastic member (elastic line) disposed laterally between the first upper sheet and the bottom sheet, and a second elastic member (elastic line) disposed laterally between the second upper sheet and the bottom sheet.

[0003] In manufacturing stretch composite sheets, a first elastic component is typically bonded between a first upper sheet and a bottom sheet, and a second elastic component is bonded between a second upper sheet and a bottom sheet, respectively, using a pair of elastic component configuration devices with a wrapping structure, to form a stretch composite sheet semi-finished product. Laterally, the first and second upper sheets of the stretch composite sheet semi-finished product are bonded side-by-side to both sides of the bottom sheet.

[0004] Then, a cover sheet is laminated onto the surface of the semi-finished stretch composite sheet at the middle position, covering the first and second upper layers of the sheet. Finally, hook elements (magic hook material) are laminated onto the surface of the cover sheet to form the stretch composite sheet.

[0005] In existing technology, during the manufacturing process of stretchable composite sheets, along the transverse direction, because the first and second upper-layer sheets of the stretchable composite sheet semi-finished product are laminated side-by-side on both sides of the bottom sheet, there is a certain gap between the first and second upper-layer sheets (the portion between the first and second upper-layer sheets). When a cover sheet is laminated onto the surface of the stretchable composite sheet semi-finished product, the first and second elastic components retract, causing the gap between the first and second upper-layer sheets to widen. This prevents the cover sheet from covering a portion of the first and second upper-layer sheets, resulting in defective stretchable composite sheets. Therefore, it is necessary to include a device in the composite sheet manufacturing apparatus to reduce the probability of increased gaps between the first and second upper-layer sheets due to retraction along the transverse direction (corresponding to the width direction in the process device) of the stretchable composite sheet semi-finished product. Utility Model Content

[0006] This invention provides a manufacturing apparatus for a stable composite covering sheet of a telescopic composite sheet, which solves the technical problem in the prior art where, during the manufacturing process of a telescopic composite sheet, the first elastic component and the second elastic component retract, causing the gap between the first upper layer sheet and the second upper layer sheet in the width direction of the semi-finished telescopic composite sheet to increase, resulting in the risk that the covering sheet may not be able to cover part of the first upper layer sheet and the second upper layer sheet.

[0007] The technical solution provided by this utility model is as follows:

[0008] One objective of this invention is to provide a manufacturing apparatus for a stable composite cover sheet of a telescopic composite sheet, the manufacturing apparatus comprising a composite roller, wherein a bottom sheet is introduced from the composite roller.

[0009] A first clamping roller is disposed on the circumferential surface of the composite roller for guiding a first upper sheet and forming a first composite point with the composite roller. The first composite point is located downstream of the bottom sheet guided by the composite roller.

[0010] A first elastic component configuration unit is provided corresponding to the first clamping roller and is used to guide the first elastic component between the bottom sheet and the first upper sheet at the first composite point.

[0011] The second clamping roller is disposed on the circumferential surface of the composite roller and located downstream of the first clamping roller. It is used to introduce the second upper sheet and form a second composite point with the composite roller.

[0012] The second elastic component configuration unit is arranged corresponding to the second clamping roller, and is used to guide the second elastic component between the bottom sheet and the second upper sheet at the second composite point, thereby forming a stretchable composite sheet semi-finished product.

[0013] The manufacturing apparatus further includes an output device arranged downstream of the composite roller; a joining roller is arranged at the outlet position of the output device, and the joining roller forms a third composite point at the outlet position of the output device to laminate the cover sheet onto the surface of the stretch composite sheet semi-finished product, so that the cover sheet covers a portion of the first upper sheet and the second upper sheet.

[0014] An auxiliary device is also provided at the outlet position of the output device, and the auxiliary device is located upstream of the third composite point.

[0015] The auxiliary device includes at least a pair of suction components, each with a suction port; along the width direction, the suction ports of the pair of suction components are aligned on both sides of the outlet position of the output device to suction air from the edges of the first upper sheet and the second upper sheet located in the middle of the stretch composite sheet semi-finished product along the width direction.

[0016] In a preferred embodiment, the auxiliary device further includes an air blowing component having an air blowing port; the air blowing port of the air blowing component is aligned with the center of the outlet position of the output device to blow air onto the middle position of the stretch composite sheet semi-finished product.

[0017] In a preferred embodiment, along the width direction, the first clamping roller and the second clamping roller are staggered and arranged on both sides of the composite roller, such that the first upper sheet clamps the first elastic member and is composited to one side of the bottom sheet at the first composite point, and the second upper sheet clamps the second elastic member and is composited to the other side of the bottom sheet at the second composite point.

[0018] Along the width direction, the composite roller, the first clamping roller, and the second clamping roller are arranged in parallel, and the length of the composite roller is greater than the length of both the first clamping roller and the second clamping roller.

[0019] In a preferred embodiment, the diameter of the composite roller is 2 to 4 times the diameter of the first clamping roller and the second clamping roller, and the length of the composite roller is greater than the width of the bottom sheet in the width direction.

[0020] In a preferred embodiment, the first elastic component configuration unit includes a first rotating component and two sets of first conveyor wheels arranged at intervals along the width direction; on the two sets of first conveyor wheels, two sets of first conveyor belts are respectively arranged in a rotatable manner.

[0021] The first rotating member is configured to rotate in the width direction to guide the first elastic member and to extend the first elastic member in the width direction and wind it around the two sets of the first conveyor belts.

[0022] The two sets of first conveyor belts are configured to rotate synchronously to transport the first elastic component wound on the two sets of first conveyor belts to the first composite point;

[0023] The first elastic component configuration unit is further provided with a first cutter for cutting the first elastic component wound on the two sets of the first conveyor belts at the first composite point, after it is composited between the first upper sheet and the bottom sheet.

[0024] In a preferred embodiment, the second elastic component configuration unit includes a second rotating component and two sets of second conveyor wheels arranged at intervals along the width direction; on the two sets of second conveyor wheels, two sets of second conveyor belts are respectively arranged in a rotatable manner;

[0025] The second rotating member is configured to rotate in the width direction for guiding the second elastic member and extending the second elastic member in the width direction and winding it around the two sets of the second conveyor belts.

[0026] The two sets of second conveyor belts are configured to rotate synchronously to transport the second elastic component wound on the two sets of second conveyor belts to the second composite point;

[0027] The second elastic component configuration unit is further provided with a second cutter for cutting the second elastic component wound on the two sets of the second conveyor belts at the second composite point, after it is composited between the second upper sheet and the bottom sheet.

[0028] In a preferred embodiment, a transition roller is further provided on the downstream side of the second clamping roller; the transition roller is located on the upstream side of the output device and is disposed on the circumferential surface of the composite roller;

[0029] Along the width direction, the length of the transition roller is greater than or equal to the length of the composite roller.

[0030] In a preferred embodiment, a folding device is arranged on the downstream side of the joining roller; the folding device is used to fold the stretchable composite sheet semi-finished product of the composite cover sheet inward along the outer edge in the width direction to form a folded portion.

[0031] In a preferred embodiment, the folding device includes a pair of pallets and a pair of folding plates arranged along the width direction, and a placement roller arranged between the pallets and the folding plates along the flow direction, the placement roller being used to support the middle portion of the stretchable composite sheet semi-finished product of the composite cover sheet along the width direction.

[0032] In a preferred embodiment, a first clamping device is arranged on the downstream side of the folding device; the first clamping device is used to press the folded portion of the stretchable composite sheet semi-finished product of the composite cover sheet.

[0033] In a preferred embodiment, a second clamping device is arranged downstream of the third composite point. The second clamping device is used to introduce the hook element and composite the hook element onto the surface of the cover sheet of the stretch composite sheet semi-finished product to form a stretch composite sheet.

[0034] The above-described technical solution of this utility model has at least the following beneficial effects compared with the prior art:

[0035] This invention provides a manufacturing apparatus for a stable composite cover sheet of a stretchable composite sheet. An output device is arranged downstream of the composite roller, and an auxiliary device is positioned at the outlet of the output device. The auxiliary device includes at least a pair of suction components. Along the width direction, the pair of suction components are positioned on both sides of the outlet of the output device to suction air from the edges of the first and second upper sheets located at the midpoint of the semi-finished stretchable composite sheet. This stretches the edges of the first and second upper sheets at the midpoint of the semi-finished stretchable composite sheet along the width direction. As the bonding roller applies the cover sheet to the surface of the semi-finished stretchable composite sheet at the third bonding point, the cover sheet partially covers the first and second upper sheets, preventing the first and second elastic components from retracting and thus avoiding the risk of the cover sheet failing to cover the first and second upper sheets. This prevents defective stretchable composite sheets from being produced. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a planar schematic diagram of a disposable diaper unfolded longitudinally.

[0038] Figure 2 This is a planar schematic diagram of the stretchable composite sheet manufactured according to this utility model along its longitudinal direction.

[0039] Figure 3 yes Figure 2 Cross-sectional view along the AA direction.

[0040] Figure 4 This is a schematic diagram of the side wings of a disposable diaper formed by cutting a stretchable composite sheet.

[0041] Figure 5 This is a schematic diagram of the side wings of a disposable diaper.

[0042] Figure 6 This is a schematic diagram of a manufacturing apparatus for a stable composite covering sheet of a telescopic composite sheet, according to Embodiment 1 of this utility model.

[0043] Figure 7 This is a top view of the first and second clamping rollers staggered on the circumferential surface of the composite roller in Embodiment 1 of this utility model.

[0044] Figure 8 yes Figure 6 A schematic diagram of the viewpoint from the D direction.

[0045] Figure 9 This is a side view of the folding device in Embodiment 1 of this utility model.

[0046] Figure 10 This is a top view of the folding device in Embodiment 1 of this utility model.

[0047] Figure 11 This is a schematic diagram of the process of manufacturing a stretchable composite sheet using a manufacturing device for a stable composite covering sheet in Embodiment 1 of this utility model.

[0048] Figure 12 This is a schematic diagram of a manufacturing apparatus for a stable composite covering sheet of a telescopic composite sheet, as described in Embodiment 2 of this utility model.

[0049] Figure 13 This is a schematic diagram of the transition roller arranged on the circumferential surface of the composite roller in Embodiment 2 of this utility model. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0051] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0052] It should be noted that the terms "upper", "lower", "left", "right", "front", and "back" used in this utility model are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0053] To make this utility model clearer, it is necessary to describe the stretchable composite sheet manufactured by this utility model.

[0054] like Figure 1 As shown, the disposable diaper S has mutually perpendicular horizontal and vertical dimensions. The disposable diaper S includes an absorbent body T and a pair of side wings W disposed on both sides of the absorbent body T in the horizontal direction. The side wings W are made of a stretchable composite sheet W'.

[0055] Combination Figures 2 to 5 The stretchable composite sheet W' has mutually perpendicular transverse, longitudinal, and thickness directions. For example... Figure 2 and Figure 3 As shown, along the thickness direction, the stretchable composite sheet W' includes a bottom sheet W0, a first upper sheet W1, and a second upper sheet W2, as well as a first elastic member T1 disposed laterally between the first upper sheet W1 and the bottom sheet W0, and a second elastic member T2 disposed laterally between the second upper sheet W2 and the bottom sheet W0. The first elastic member T1 and the second elastic member T2 can be materials such as elastic yarn, elastic film, elastic fabric, or elastic composite sheets. In this embodiment, the first elastic member T1 and the second elastic member T2 are elastic yarn materials, such as spandex filaments.

[0056] Along the transverse direction, the first elastic component T1 and the first upper sheet W1, the second elastic component T2 and the second upper sheet W2 are laminated side by side on both sides of the bottom sheet W0. That is, the first elastic component T1 and the first upper sheet W1, the second elastic component T2 and the second upper sheet W2 share a single bottom sheet W0. Compared with the traditional structure (which usually involves placing an elastic component between two layers of nonwoven fabric to form an elastic composite semi-finished product, which is then laminated onto the bottom sheet), this structure saves more material and has lower production costs.

[0057] A cover sheet W3 is laminated at the midpoint between the first upper sheet W1 and the second upper sheet W2, close to each other. The cover sheet W3 covers a portion of the first upper sheet W1 and the second upper sheet W2 to prevent delamination due to lack of adhesion. A hook element W4 is laminated onto the surface of the cover sheet W3.

[0058] The bottom sheet W0, the first upper sheet W1, and the second upper sheet W2 of this invention can all be made of various types of non-woven fabric materials. The covering sheet W3 can be made of various types of non-woven fabric, or a stretchable material, etc. The hook element W4 can be a magic hook material, that is, a material that can generate natural adhesion and separation on woolen fabrics.

[0059] like Figure 3As shown, the first elastic component T1 is bonded between the bottom sheet W0 and the first upper sheet W1 by the first adhesive H1, the second elastic component T2 is bonded between the bottom sheet W0 and the second upper sheet W2 by the second adhesive H2, the cover sheet W3 is bonded to the middle position where the first upper sheet W1 and the second upper sheet W2 are close to each other by the third adhesive H3, the cover sheet W3 covers the first upper sheet W1 and the second upper sheet W2, and the hook element W4 is bonded to the surface of the cover sheet W3 by the fifth adhesive H5.

[0060] To ensure the strength of the side wings W ends of the telescopic composite sheet W', the bottom sheet W0 is folded inward along both sides in the lateral direction and fixed to the outermost ends of the first upper sheet W1 and the second upper sheet W2 in the lateral direction using the fourth adhesive H4, thereby forming the folded part B, as shown. Figure 3 As shown.

[0061] like Figure 4 As shown, in the transverse middle region of the telescopic composite sheet W', the telescopic composite sheet W' is cut along the arc-shaped cutting line C1 by an arc-shaped cutting device (S-shaped cutting device) (S-shaped cutting), dividing the telescopic composite sheet W' into two uniform halves. The trajectory of the arc-shaped cutting line C1 is the pre-designed shape of the side wing W.

[0062] Then, along the laterally extending dividing line C2, a longitudinal cut of a fixed length is made using a cutting device, thereby forming independent side wings W, as shown. Figure 5 As shown. A pair of side wings W are combined with the absorbent body T and positioned on both sides of the absorbent body T laterally, thereby forming a disposable diaper S, as shown. Figure 1 As shown.

[0063] Example 1.

[0064] Combination Figures 6 to 11 According to an embodiment of the present invention, an apparatus for manufacturing a stable composite covering sheet of a stretchable composite sheet is provided for manufacturing a stretchable composite sheet W'.

[0065] like Figure 6 and Figure 7 As shown, to make the present invention clearer, a manufacturing apparatus for a stable composite covering sheet of a telescopic composite material has a main flow direction M1 for manufacturing the telescopic composite sheet W', and a width direction M2 perpendicular to the main flow direction M1. Figure 1 The direction of the paper surface), the height direction M3 perpendicular to the main flow direction M1 and the width direction M2.

[0066] The main flow direction M1 refers to the main flow direction for manufacturing the stretchable composite sheet W', corresponding to the longitudinal direction of the stretchable composite sheet W'. The width direction M2 corresponds to the transverse direction of the stretchable composite sheet W'. The height direction M3 corresponds to the thickness direction of the stretchable composite sheet W'.

[0067] It should be noted that each sheet (bottom sheet W0, first upper sheet W1 and second upper sheet W2) and each elastic component (first elastic component T1 and second elastic component T2) are branches of the main process. Their respective process directions may be the same as or different from the main process M1.

[0068] In this embodiment, the main flow direction M1 is from left to right. Of course, this is not limited to the direction of right to left, depending on the actual situation.

[0069] like Figure 6 As shown, according to an embodiment of the present invention, a manufacturing apparatus for a stable composite cover sheet of a telescopic composite sheet includes a first elastic component configuration unit 1, a first clamping roller 2, a second elastic component configuration unit 3, a second clamping roller 4, a composite roller 5, a joining roller 6, an output device 7, a folding device 8, a first clamping device 9, and a second clamping device 10.

[0070] Composite roller 5 has a large-diameter roller structure with a large diameter and surface length. A bottom sheet W0 is introduced from composite roller 5. Specifically, as shown... Figure 6 As shown, after the bottom sheet W0 is unwound, it is guided into the composite roller 5 by the guide roller G1, so that the bottom sheet W0 is pre-laid on the circumferential surface of the composite roller 5. Figure 7 As shown, along the width direction M2, the length of the composite roller 5 is greater than the width of the bottom sheet W0, that is, the axial length of the composite roller 5 is greater than the width of the bottom sheet W0.

[0071] The first clamping roller 2 is disposed on the circumferential surface of the composite roller 5 for guiding the first upper sheet W1 and forming a first composite point F1 with the composite roller 5. The first composite point F1 is located downstream of the bottom sheet W0 guided by the composite roller 5. Specifically, as shown... Figure 6 As shown, after the first upper sheet W1 is unwound, it is guided by the guide roller G1 and fed into the first clamping roller 2. Figure 7 As shown, along the width direction M2, the length of the first clamping roller 2 is greater than the width of the first upper sheet W1.

[0072] The first elastic component configuration unit 1 is configured correspondingly to the first clamping roller 2, such as... Figure 6 and Figure 7 As shown, it is used to guide the first elastic member T1 between the bottom sheet W0 and the first upper sheet W1 at the first composite point F1.

[0073] The second clamping roller 4 is disposed on the circumferential surface of the composite roller 5, located downstream of the first clamping roller 2, and is used to guide the second upper sheet W2, forming a second composite point F2 between itself and the composite roller 5. Specifically, as shown... Figure 6 As shown, after the second upper sheet W2 is unwound, it is guided by the guide roller G1 into the second clamping roller 4. Figure 7 As shown, along the width direction M2, the length of the second clamping roller 4 is greater than the width of the second upper sheet W2.

[0074] The second elastic component configuration unit 3 is configured correspondingly to the second clamping roller 4, such as... Figure 6 and Figure 7 As shown, it is used to guide the second elastic member T2 between the bottom sheet W0 and the second upper sheet W2 at the second composite point F2, thereby forming a stretchable composite sheet semi-finished product W.

[0075] Combination Figure 6 and Figure 7 According to an embodiment of the present invention, along the width direction M2, the first clamping roller 2 and the second clamping roller 4 are staggered on both sides of the composite roller 5, so that the first upper sheet W1 clamps the first elastic member T1 and is composited to one side of the bottom sheet W0 at the first composite point F1, and the second upper sheet W2 clamps the second elastic member T2 and is composited to the other side of the bottom sheet W0 at the second composite point F2.

[0076] Along the width direction M2, the composite roller 5, the first clamping roller 2 and the second clamping roller 4 are arranged in parallel, and the length of the composite roller 5 is greater than the length of the first clamping roller 2 and the second clamping roller 4.

[0077] The bottom sheet W0 of this invention is introduced from the composite roller 5. A first composite point F1 is formed between the first clamping roller 2 and the composite roller 5, and a second composite point F2 is formed between the second clamping roller 4 and the composite roller 5. Since both the first composite point F1 and the second composite point F2 are on the composite roller 5, the bottom sheet W0, the first upper sheet W1, the first elastic component T1, the second upper sheet W2 and the second elastic component T2 are all composited on the composite roller 5. At the same speed, the synchronization and composite stability are better.

[0078] For the design of the composite roller 5, in order to guide the bottom sheet W0 through the composite roller 5, in the width direction M2, the length of the composite roller 5 is greater than the width of the bottom sheet W0, and the diameter of the composite roller 5 is 2 to 4 times the diameter of the first clamping roller 2 and the second clamping roller 4. This provides more space on the composite roller 5, making it easier to arrange the first clamping roller 2 and the second clamping roller 4 on the circumference of the composite roller 5. Furthermore, the staggered design of the first clamping roller 2 and the second clamping roller 4 in the width direction M2, and their cooperation with the composite roller 5, significantly improves the process space and enables a miniaturized design of the manufacturing device.

[0079] Along the circumference of the composite roller 5, the first clamping roller 2 and the second clamping roller 4 are arranged at a certain angle on the circumferential surface of the composite roller 5. Specifically, in this embodiment, the second clamping roller 4 is located downstream of the first clamping roller 2, and the first clamping roller 2 and the second clamping roller 4 are arranged at an angle of 180° on the circumferential surface of the composite roller 5, that is, along the height direction M3, the first clamping roller 2 is arranged on one side of the circumferential surface of the composite roller 5, and the second clamping roller 4 is symmetrically arranged on the other side of the circumferential surface of the composite roller 5, such as... Figure 6 As shown.

[0080] The first elastic component configuration unit 1 is correspondingly arranged with the first clamping roller 2. Specifically, the length of the first elastic component configuration unit 1 is set along the main flow direction M1, and its length is perpendicular to the width direction M2 of the first clamping roller 2.

[0081] Similarly, the second elastic component configuration unit 3 is correspondingly arranged with the second clamping roller 4. Specifically, the length of the second elastic component configuration unit 3 is set along the main flow direction M1, and its length is perpendicular to the width direction M2 of the second clamping roller 4. Therefore, the first elastic component configuration unit 1 and the second elastic component configuration unit 3 are also arranged at an angle of 180°.

[0082] In some embodiments, the first clamping roller 2 and the second clamping roller 4 may also be arranged at other angles on the circumferential surface of the composite roller 5, as long as the corresponding first elastic component configuration unit 1 and the second elastic component configuration unit 3 can accommodate them.

[0083] The first elastic component configuration unit 1 includes a first rotating component 11 and two sets of first conveyor wheels 12 arranged at intervals M2 along the width direction. Two sets of first conveyor belts 14 are respectively arranged rotatably on the two sets of first conveyor wheels 12. Each set of first conveyor wheels 12 has at least one pair of first conveyor wheels 12, and each pair of first conveyor wheels 12 corresponds to one rotatable first conveyor belt 14; that is, each set of first conveyor wheels 12 needs to correspond to one set of first conveyor belts 14. To ensure a larger conveying range and more stable conveying, preferably, each set of first conveyor wheels 12 has two pairs of first conveyor wheels 12.

[0084] The first rotating member 11 is configured to rotate along the width direction M2. Figure 7 (in the direction indicated by the middle arrow a), used to guide the first elastic member T1, and to extend the first elastic member T1 along the width direction M2 and wind it around the two sets of first conveyor belts 14.

[0085] Specifically, after the first elastic component T1 is unwound, it is guided to the first rotating component 11 through the guide wheel G2. The first rotating component 11 rotates and stretches the first elastic component T1 along the width direction M2 and winds it onto the two sets of first conveyor belts 14.

[0086] The two sets of first conveyor belts 14 are configured to rotate synchronously. Figure 7 (in the direction indicated by the middle arrow b) to transport the first elastic component T1 wound on the two sets of first conveyor belts 14 to the first composite point F1.

[0087] The first elastic component configuration unit 1 is further provided with a first cutter 15, used to cut the first elastic component T1 wound on the two sets of first conveyor belts 14 at the first composite point F1, after it is composited between the first upper sheet W1 and the bottom sheet W0. Figure 6 and Figure 7 As shown.

[0088] In this embodiment, since the first elastic component T1 and the first upper sheet W1 will rotate away from the first elastic component configuration unit 1 together with the bottom sheet W0 after being combined at the first composite point F1, the first cutter 15 on the first elastic component configuration unit 1 is set near the first composite point F1 to ensure that it is cut immediately after being combined, and then runs to the downstream side together with the composite roller 5.

[0089] Furthermore, the first elastic component configuration unit 1 also includes a first drive unit 13. The first drive unit 13 is used to drive the two sets of first conveyor belts 14 to rotate synchronously. Specifically, the first drive unit 13 is equipped with a servo motor, which is connected to one of the first conveyor wheels 12. Under the action of the first conveyor wheel 12, the servo motor drives the first conveyor belts 14 to rotate synchronously. In this embodiment, the first drive unit 13 is equipped with two servo motors, each driving one of the first conveyor wheels 12 in each set of first conveyor wheels 12, thereby driving the two sets of first conveyor belts 14 to rotate synchronously.

[0090] Combination Figure 6 and Figure 7 According to an embodiment of the present invention, at the first composite point F1, the bottom sheet W0, the first elastic component T1, and the first upper sheet W1 are composited together.

[0091] Specifically, a first adhesive application device A1 is provided on the conveying path of the first upper sheet W1, and the first adhesive application device A1 applies a first adhesive H1 to the composite surface of the first upper sheet W1.

[0092] After the first upper sheet W1 is unwound, it is guided by the guide roller G1 and fed into the first clamping roller 2. At the first composite point F1, the first clamping roller 2 feeds the first upper sheet W1, and the first elastic component placement unit 1 feeds the first elastic component T1 along the width direction M2. The first clamping roller 2, through the first adhesive H1, composites the first upper sheet W1, the first elastic component T1, and the bottom sheet W0 laid on the circumferential surface of the composite roller 5, so that the first elastic component T1 is positioned between the first upper sheet W1 and the bottom sheet W0 along the width direction M2. Figure 11As shown.

[0093] Of course, the first adhesive H1 can also be set on the conveying path of the bottom sheet W0. It should be noted that the first adhesive H1 needs to be applied to the side of the bottom sheet W0 that is laminated.

[0094] The second elastic component configuration unit 3 includes a second rotating member 31 and two sets of second conveyor wheels 32 arranged at intervals along the width direction M2. Two sets of second conveyor belts 34 are respectively arranged rotatably on the two sets of second conveyor wheels 32. Each set of second conveyor wheels 32 has at least one pair of second conveyor wheels 32, and each pair of second conveyor wheels 32 corresponds to one rotatable second conveyor belt 34; that is, each set of second conveyor wheels 32 needs to correspond to one set of second conveyor belts 34. To ensure a larger conveying range and more stable conveying, it is also preferable that each set of second conveyor wheels 32 has two pairs of second conveyor wheels 32. The second rotating member 31 is configured to rotate along the width direction M2. Figure 7 (in the direction indicated by the middle arrow c), used to guide the second elastic member T2, and to extend the second elastic member T2 along the width direction M2 and wind it around the two sets of second conveyor belts 34.

[0095] Specifically, after the second elastic component T2 is unwound, it is guided to the second rotating component 31 through the guide wheel G2. The second rotating component 21 rotates to extend the second elastic component T2 along the width direction M2 and wind it onto the two sets of second conveyor belts 34.

[0096] The two sets of second conveyor belts 34 are configured to rotate synchronously. Figure 7 (in the direction indicated by the middle arrow d) to transport the second elastic component T2 wound on the two sets of second conveyor belts 34 to the second composite point F2.

[0097] The second elastic component configuration unit 3 is further provided with a second cutter 35, used to cut the second elastic component T3 wound on the two sets of second conveyor belts 34 at the second composite point F2, after it is composited between the second upper sheet W2 and the bottom sheet W0. Figure 6 and Figure 7 As shown.

[0098] In this embodiment, since the second elastic component T2 and the second upper sheet W2 will rotate away from the second elastic component configuration unit 3 together with the bottom sheet W0 after being combined at the second composite point F2, the second cutter 35 on the second elastic component configuration unit 3 is set near the second composite point F2 to ensure that it is cut immediately after the composite is completed, and then runs to the downstream side together with the composite roller 5.

[0099] Furthermore, the second elastic component configuration unit 3 also includes a second drive unit 33. The second drive unit 33 is used to drive the two sets of second conveyor belts 34 to rotate synchronously. Specifically, the second drive unit 33 is equipped with a servo motor, which is connected to one of the second conveyor wheels 32. Under the action of the second conveyor wheel 32, the servo motor drives the second conveyor belts 34 to rotate synchronously. In this embodiment, the second drive unit 33 is equipped with two servo motors, each driving one of the second conveyor wheels 32 in each set of second conveyor wheels 32, thereby driving the two sets of second conveyor belts 34 to rotate synchronously.

[0100] In order to ensure the consistency of the first elastic component T1 and the first upper sheet W1, the second elastic component T2 and the second upper sheet W2 arranged side by side on the lateral sides of the bottom sheet W0, in this embodiment, the structure of the second elastic component configuration unit 3 is the same as the structure of the first elastic component configuration unit 1.

[0101] Combination Figure 6 and Figure 7 According to an embodiment of the present invention, at the second composite point F2, the bottom sheet W0, the second elastic component T2, and the second upper sheet W2 are composited together to form a stretchable composite sheet semi-finished product W.

[0102] Specifically, a second adhesive applicator A2 is installed on the conveying path of the second upper sheet W2, and the second adhesive applicator A2 applies a second adhesive H2 to the composite surface of the second upper sheet W2.

[0103] After the second upper sheet W2 is unwound, it is guided by the guide roller G1 to the second clamping roller 4. At the second composite point F2, the second clamping roller 4 guides the second upper sheet W2, and the second elastic component arrangement unit 3 guides the second elastic component T2 along the width direction M2. The second clamping roller 4, through the second adhesive H2, composites the second upper sheet W2, the second elastic component T2, and the bottom sheet W0 laid on the circumferential surface of the composite roller 5, so that the second elastic component T2 is arranged between the second upper sheet W2 and the bottom sheet W0 along the width direction M2, forming a stretchable composite sheet semi-finished product W". Figure 11 As shown, the resulting stretchable composite sheet semi-finished product "W" is conveyed downstream along the main flow direction M1.

[0104] Of course, the second adhesive H2 can also be set on the conveying path of the bottom sheet W0. It should be noted that the second adhesive H2 needs to be applied to the side of the bottom sheet W0 that is laminated.

[0105] In a preferred embodiment, to facilitate the introduction of the first upper sheet W1 into the first composite point F1 and the second upper sheet W2 into the second composite point F2, the first clamping roller 2 and the second clamping roller 4 are configured to move closer to or further away from the composite roller 5. Specifically, when the first clamping roller 2 / second clamping roller 4 guides the first upper sheet W1 / second upper sheet W2 to be composited at the first composite point F1 / second composite point F2, the circumferential surface of the first clamping roller 2 / second clamping roller 4 is tangentially attached to the circumferential surface of the composite roller 5; when loading materials or performing cleaning operations, the circumferential surface of the first clamping roller 2 / second clamping roller 4 moves away from the circumferential surface of the composite roller 5.

[0106] In a preferred embodiment, to ensure the synchronicity of the compounding of the bottom sheet W0, the first elastic member T1, and the first upper sheet W1 with the compounding of the bottom sheet W0, the second elastic member T2, and the second upper sheet W2, the first clamping roller 2 and the second clamping roller 4 have the same diameter. Of course, in some embodiments, the diameters of the first clamping roller 2 and the second clamping roller 4 may be different.

[0107] Because the first clamping roller 2 and the second clamping roller 4 are staggered on the circumferential surface of the composite roller 5 along the width direction M2, the resulting stretchable composite sheet semi-finished product W” has the first elastic component T1 and the first upper sheet W1, the second elastic component T2 and the second upper sheet W2 arranged side by side on both sides of the bottom sheet W0 along the width direction M2, with a certain gap J between the first upper sheet W1 and the second upper sheet W2 (the part between the first upper sheet W1 and the second upper sheet W2). Figure 8 and Figure 11 As shown.

[0108] During the composite process of the stretchable composite sheet semi-finished product "W", the first elastic component T1 is disposed between the first upper sheet W1 and the bottom sheet W0 along the width direction M2, and the second elastic component T2 is disposed between the second upper sheet W2 and the bottom sheet W0 along the width direction M2. Since the bottom sheet W0 is always laid on the circumferential surface of the composite roller 5, the first upper sheet W1 and the bottom sheet W0 clamp the first elastic component T1, and the second upper sheet W2 and the bottom sheet W0 clamp the second elastic component T2. Therefore, the probability of the first elastic component T1 and the second elastic component T2 retracting from the composite roller 5 along the width direction M2 is relatively small.

[0109] Combination Figure 6 , Figure 8 and Figure 11According to an embodiment of the present invention, the manufacturing apparatus further includes an output device 7 arranged downstream of the composite roller 5. A joining roller 6 is arranged at the outlet position K of the output device 7, and the joining roller 6 forms a third composite point F3 at the outlet position K of the output device 7 to laminate the cover sheet W3 onto the surface of the stretch composite sheet semi-finished product W”, so that the cover sheet W3 covers a portion of the first upper sheet W1 and the second upper sheet W2.

[0110] Output device 7 is used to stably convey the stretch composite sheet semi-finished product W” downstream. In this embodiment, after the stretch composite sheet semi-finished product W” leaves the circumferential surface of the composite roller 5, it is conveyed to output device 7. Output device 7 stably conveys the stretch composite sheet semi-finished product W” downstream.

[0111] A joining roller 6 is arranged at the outlet position K of the output device 7 to laminate the cover sheet W3 onto the stretch composite sheet semi-finished product W" (the middle position where the first upper sheet W1 and the second upper sheet W2 are close to each other), covering part of the first upper sheet W1 and the second upper sheet W2. However, after the stretch composite sheet semi-finished product W" leaves the circumferential surface of the laminating roller 5, the first elastic component T1 and the second elastic component T2 will retract to a certain extent along the width direction M2, which will increase the gap J between the first upper sheet W1 and the second upper sheet W2 (the middle part between the first upper sheet W1 and the second upper sheet W2). When the cover sheet W3 is introduced for lamination, there is a risk that the cover sheet W3 will not be able to cover part of the first upper sheet W1 and the second upper sheet W2 (it cannot cover the gap J between the first upper sheet W1 and the second upper sheet W2 well), thus causing the stretch composite sheet W' to be defective.

[0112] In this embodiment, to prevent the semi-finished composite sheet W” of the composite covering sheet W3 from shrinking along the width direction M2 due to the action of the first elastic component T1 and the second elastic component T2, the output device 7 is configured as a vacuum suction conveying structure, allowing it to be conveyed under vacuum suction. In some embodiments, the output device 7 may not be a vacuum suction conveying structure; some auxiliary devices to prevent shrinkage can be appropriately configured, as long as the semi-finished composite sheet W” can be conveyed stably within a controllable range of shrinkage along the width direction M2.

[0113] To solve the above technical problems, such as Figure 6 and Figure 8 As shown in the embodiment of this utility model, an auxiliary device R is also provided at the outlet position K of the output device 7. The auxiliary device R is located upstream of the third composite point F3. The auxiliary device R includes a pair of suction components R1 and blowing components R2. The suction component R1 has a suction port, and the blowing component R2 has a blowing port.

[0114] Along the width direction, the air inlets of a pair of air-suction components R1 are aligned with the two sides of the outlet position K of the output device 7, so as to suck air along the width direction M2 to the edges of the first upper sheet W1 and the second upper sheet W2 located in the middle position of the stretch composite sheet semi-finished product W”, so that the edges of the first upper sheet W1 and the second upper sheet W2 located in the middle position of the stretch composite sheet semi-finished product W” are stretched along the width direction M2.

[0115] In some embodiments, a pair of suction components R1 are connected to a suction device (e.g., a vacuum generator, a negative pressure fan, etc.) to achieve suction along the width direction M2 to the edge of the first upper sheet W1 and the second upper sheet W2 located in the middle position of the stretch composite sheet semi-finished product W”.

[0116] The air blowing port of the air blowing component R2 is aligned with the middle of the outlet position K of the output device 7 to blow air onto the middle position of the stretch composite sheet semi-finished product W”.

[0117] In some embodiments, the air blowing component R2 is connected to an air blowing device (e.g., an air blowing fan) to blow air onto the middle position of the stretchable composite sheet semi-finished product W”.

[0118] like Figure 6 , Figure 8 and Figure 11 As shown, at the third composite point F3, the bonding roller 6 laminates the cover sheet W3 onto the surface of the stretch composite sheet semi-finished product W”, so that the cover sheet W3 covers part of the first upper sheet W1 and the second upper sheet W2.

[0119] Specifically, such as Figure 6 As shown, the semi-finished telescopic composite sheet "W" is conveyed along the main flow direction M1 to the third composite point F3 formed at the outlet position K of the output device 7.

[0120] A third adhesive application device A3 is installed on the conveying path of the third upper sheet W3. The third adhesive application device A3 applies a third adhesive H3 to the composite surface of the third upper sheet W3.

[0121] After the third upper sheet W3 is unwound, it is guided by the guide roller G1 and introduced into the joining roller 6. At the third bonding point F3, the joining roller 6 introduces the cover sheet W3, and the cover sheet W3 is bonded to the surface of the stretch composite sheet semi-finished product W” by the third adhesive H3, so that the cover sheet W3 covers part of the first upper sheet W1 and the second upper sheet W2, as shown. Figure 8 and Figure 11 As shown.

[0122] In this invention, when the semi-finished telescopic composite sheet W” is conveyed to the outlet position K of the output device 7, the air inlets of a pair of suction components R1 suck air along the width direction M2 at the edges of the first upper sheet W1 and the second upper sheet W2 located in the middle position of the semi-finished telescopic composite sheet W” (i.e., sucking air at the edges of the first upper sheet W1 and the second upper sheet W2 that are close to each other), causing the edges of the first upper sheet W1 and the second upper sheet W2 located in the middle position of the semi-finished telescopic composite sheet W” to stretch along the width direction M2. As a result, during the process of the bonding roller 6 bonding the cover sheet W3 to the surface of the semi-finished telescopic composite sheet W” at the third bonding point F3, the cover sheet W3 covers part of the first upper sheet W1 and the second upper sheet W2, preventing the first elastic component T1 and the second elastic component T2 from retracting, which would cause the cover sheet W3 to fail to cover part of the first upper sheet W1 and the second upper sheet W2, thereby preventing the telescopic composite sheet W’ from being defective.

[0123] At the same time, the air blowing port of the air blowing component R2 blows air onto the middle position of the stretch composite sheet semi-finished product W”, making the middle position of the stretch composite sheet semi-finished product W” clean and flat, so as to facilitate the stable bonding of the covering sheet W3 to the surface of the stretch composite sheet semi-finished product W”.

[0124] According to an embodiment of the present invention, the diameter of the composite roller 5 is 2 to 4 times the diameter of the first clamping roller 2 and the second clamping roller 4, so that the composite roller 5 has a larger configuration space, thereby facilitating the simultaneous configuration of the first clamping roller 2 and the second clamping roller 4 on the circumferential surface of the composite roller 5.

[0125] A folding device 8 is arranged on the downstream side of the joining roller 6. The folding device 8 is used to fold the outer edge of the stretchable composite sheet semi-finished product W” of the composite cover sheet W3 inward to form a folded portion B, such as... Figure 11 As shown.

[0126] Combination Figure 9 and Figure 10 According to an embodiment of the present invention, the folding device 8 includes a pair of support plates 81 and a pair of folding plates 82 arranged along the width direction M2, and a placement roller 83 arranged between the support plates 81 and the folding plates 82 along the main flow direction M1. The placement roller 83 is used to support the middle portion of the stretchable composite sheet semi-finished product W” of the composite cover sheet W3 along the width direction.

[0127] Since the semi-finished telescopic composite sheet W” of the composite covering sheet W3 is folded outward along the width direction, the support plate 81 and the folding plate 82 are also arranged on both sides of the width direction in the folding device 8. The support plate 81 is arranged upstream of the folding plate 82 along the main flow direction M1. Since there is a gap space between the support plate 81 and the folding plate 82 (at the middle position) on both sides of the width direction, the semi-finished telescopic composite sheet W” will sink in. Therefore, this utility model sets a placement roller 83 between the support plate 81 and the folding plate 82 along the main flow direction M1 to prevent the semi-finished telescopic composite sheet W” from sinking into the gap space between the support plate 81 and the folding plate 82 (at the middle position) in the width direction.

[0128] Specifically, a fourth adhesive applicator A4 is provided between the joining roller 6 and the folding device 8. The fourth adhesive applicator A4 applies a fourth adhesive H4 to both sides of the bottom sheet W0 along the width direction M2.

[0129] The folding device 8 folds the bottom sheet W0 along both sides of the width direction M2 and fixes it to the outermost ends of the first upper sheet W1 and the second upper sheet W2 of the stretchable composite sheet semi-finished product W" along the width direction M2 by the fourth adhesive H4, thereby forming the folded part B and ensuring the strength of the side wings W ends of the molded product (disposable diaper S).

[0130] A first clamping device 9 is arranged on the downstream side of the folding device 8. The first clamping device 9 is used to press the folded part B of the stretchable composite sheet semi-finished product W” of the composite cover sheet W3.

[0131] A second clamping device 10 is arranged downstream of the third composite point F3. The second clamping device 10 is used to introduce the hook element W4 and attach the hook element W4 to the surface of the cover sheet W3 of the stretch composite sheet semi-finished product W” to form the stretch composite sheet W’. Along the main flow direction, the second clamping device 10 only needs to be set after the cover sheet W3 is attached to the surface of the stretch composite sheet semi-finished product W”. Along the width direction, since the second clamping device 10 attaches the hook element W4 to the middle position of the stretch composite sheet semi-finished product W”, which is not in the same position as the folded portion B forming the two sides of the folding device 8, the second clamping device 10 can be set between the output device 7 and the folding device 8, or it can be set downstream of the first clamping device 9. In this embodiment, the second clamping device 10 is located downstream of the first clamping device 9.

[0132] Specifically, such as Figure 6 As shown, the semi-finished telescopic composite sheet W, which forms the folded part B, is conveyed to the second clamping device 10 along the main flow direction M1.

[0133] A fifth adhesive applicator A5 is installed on the conveying path of the hook element W4. The fifth adhesive applicator A5 applies a fifth adhesive H5 to the composite surface of the hook element W4.

[0134] After the hook element W4 is unwound, it is guided by the guide roller G1 into the second clamping device 10. The second clamping device 10 guides the hook element W4, and the hook element W4 is bonded to the surface of the cover sheet W3 of the stretch composite sheet semi-finished product W” by the fifth adhesive H5 to form the stretch composite sheet W', which is then conveyed to the downstream side along the main flow direction M1.

[0135] Of course, the fifth adhesive H5 can also be placed on the downstream side of the folding device 8 and applied to the covering sheet W3.

[0136] The folding device 8 is used to fold the outer edge of the stretchable composite sheet semi-finished product W” of the composite covering sheet W3 inward along the width direction M2 to form a folded part B (the folded part B is not in the middle position). In this invention, along the main flow direction M1, the folding device 8 can be set on the upstream side of the second clamping device 10 or on the downstream side of the second clamping device 10. In this embodiment, the folding device 8 is set on the upstream side of the second clamping device 10, which can be determined according to the actual situation.

[0137] In order to process the stretchable composite sheet W' into the side wings W of the finished disposable diaper S, an arc-shaped cutting device (S-shaped cutting device) and a cutting device are also required on the downstream side to perform arc-shaped cutting (S-shaped cutting) and fixed-length cutting on the stretchable composite sheet W', thereby forming an independent pair of side wings W, which are then combined with the absorbent body T to finally form the disposable diaper S.

[0138] Example 2.

[0139] The difference between this embodiment and Embodiment 1 is that a transition roller 6' is also provided on the downstream side of the second clamping roller 4.

[0140] Combination Figure 12 and Figure 13 In this embodiment, a transition roller 6' is also provided downstream of the second clamping roller 4. The transition roller 6' is located upstream of the output device 7, and the transition roller 6' is arranged on the circumferential surface of the composite roller 5 (tangent to the composite roller 5), such as... Figure 11 As shown.

[0141] Along the width direction M2, the length of the transition roller 6' is greater than or equal to the length of the composite roller 5. For example... Figure 11 As shown, in this embodiment, along the width direction M2, the length of the transition roller 6' is greater than the length of the composite roller 5.

[0142] In this embodiment, after the stretchable composite sheet semi-finished product W” leaves the circumferential surface of the composite roller 5, it is conveyed to the output device 7 via the transition roller 6'. The output device 7 stably conveys the stretchable composite sheet semi-finished product W” downstream.

[0143] Since the transition roller 6' is positioned on the circumferential surface of the composite roller 5 (tangential to the composite roller 5), and its length along the width direction M2 is greater than or equal to the length of the composite roller 5, when the stretchable composite sheet semi-finished product W” leaves the circumferential surface of the composite roller 5, the transition roller 6' and the composite roller 5 clamp the stretchable composite sheet semi-finished product W”, thereby reducing the probability of the stretchable composite sheet semi-finished product W” shrinking back within the range of the composite roller 5. When the stretchable composite sheet semi-finished product W” leaves the circumferential surface of the composite roller 5, the transition roller 6' can also provide a continuous and stable transition to the output device 7.

[0144] The other structures in this embodiment are the same as in Embodiment 1, and will not be described again here.

[0145] The following points need to be explained:

[0146] (1) The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment. Other structures can refer to the general design.

[0147] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present invention, i.e., these drawings are not drawn to actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "below" another element, the element may be "directly" located "on" or "below" the other element or there may be intermediate elements.

[0148] (3) Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0149] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. An apparatus for manufacturing a stable composite covering sheet of stretchable composite material, characterized in that, The manufacturing apparatus includes a composite roller from which a bottom sheet is fed. A first clamping roller is disposed on the circumferential surface of the composite roller for guiding a first upper sheet and forming a first composite point with the composite roller. The first composite point is located downstream of the bottom sheet guided by the composite roller. A first elastic component configuration unit is provided corresponding to the first clamping roller and is used to guide the first elastic component between the bottom sheet and the first upper sheet at the first composite point. The second clamping roller is disposed on the circumferential surface of the composite roller and located downstream of the first clamping roller. It is used to introduce the second upper sheet and form a second composite point with the composite roller. The second elastic component configuration unit is arranged corresponding to the second clamping roller, and is used to guide the second elastic component between the bottom sheet and the second upper sheet at the second composite point, thereby forming a stretchable composite sheet semi-finished product. The manufacturing apparatus further includes an output device arranged downstream of the composite roller; a joining roller is arranged at the outlet position of the output device, and the joining roller forms a third composite point at the outlet position of the output device to laminate the cover sheet onto the surface of the stretch composite sheet semi-finished product, so that the cover sheet covers a portion of the first upper sheet and the second upper sheet. An auxiliary device is also provided at the outlet position of the output device, and the auxiliary device is located upstream of the third composite point. The auxiliary device includes at least a pair of suction components, each with a suction port; along the width direction, the suction ports of the pair of suction components are aligned on both sides of the outlet position of the output device to suction air from the edges of the first upper sheet and the second upper sheet located in the middle of the stretch composite sheet semi-finished product along the width direction.

2. The manufacturing apparatus according to claim 1, characterized in that, The auxiliary device also includes an air blowing component with an air blowing port; the air blowing port of the air blowing component is aligned with the middle of the outlet position of the output device to blow air onto the middle position of the stretchable composite sheet semi-finished product.

3. The manufacturing apparatus according to claim 1, characterized in that, Along the width direction, the first clamping roller and the second clamping roller are staggered and arranged on both sides of the composite roller, so that the first upper sheet clamps the first elastic member and is composited to one side of the bottom sheet at the first composite point, and the second upper sheet clamps the second elastic member and is composited to the other side of the bottom sheet at the second composite point. Along the width direction, the composite roller, the first clamping roller, and the second clamping roller are arranged in parallel, and the length of the composite roller is greater than the length of both the first clamping roller and the second clamping roller.

4. The manufacturing apparatus according to claim 1, characterized in that, The diameter of the composite roller is 2 to 4 times the diameter of the first clamping roller and the second clamping roller, and the length of the composite roller is greater than the width of the bottom sheet along the width direction.

5. The manufacturing apparatus according to claim 1, characterized in that, The first elastic component configuration unit includes a first rotating component and two sets of first conveyor wheels arranged at intervals along the width direction; on the two sets of first conveyor wheels, two sets of first conveyor belts are respectively arranged in a rotatable manner; The first rotating member is configured to rotate in the width direction to guide the first elastic member and to extend the first elastic member in the width direction and wind it around the two sets of the first conveyor belts. The two sets of first conveyor belts are configured to rotate synchronously to transport the first elastic component wound on the two sets of first conveyor belts to the first composite point; The first elastic component configuration unit is further provided with a first cutter for cutting the first elastic component wound on the two sets of the first conveyor belts at the first composite point, after it is composited between the first upper sheet and the bottom sheet.

6. The manufacturing apparatus according to claim 1, characterized in that, The second elastic component configuration unit includes a second rotating component and two sets of second conveyor wheels arranged at intervals along the width direction; on the two sets of second conveyor wheels, two sets of second conveyor belts are respectively arranged in a rotatable manner; The second rotating member is configured to rotate in the width direction for guiding the second elastic member and extending the second elastic member in the width direction and winding it around the two sets of the second conveyor belts. The two sets of second conveyor belts are configured to rotate synchronously to transport the second elastic component wound on the two sets of second conveyor belts to the second composite point; The second elastic component configuration unit is further provided with a second cutter for cutting the second elastic component wound on the two sets of the second conveyor belts at the second composite point, after it is composited between the second upper sheet and the bottom sheet.

7. The manufacturing apparatus according to claim 1, characterized in that, A transition roller is also provided on the downstream side of the second clamping roller; the transition roller is located on the upstream side of the output device and is disposed on the circumferential surface of the composite roller; Along the width direction, the length of the transition roller is greater than or equal to the length of the composite roller.

8. The manufacturing apparatus according to claim 1, characterized in that, A folding device is arranged on the downstream side of the joining roller; the folding device is used to fold the stretchable composite sheet semi-finished product of the composite cover sheet inward along the outer edge in the width direction to form a folded part.

9. The manufacturing apparatus according to claim 8, characterized in that, The folding device includes a pair of pallets and a pair of folding plates arranged along the width direction, and a placement roller arranged between the pallets and the folding plates along the flow direction. The placement roller is used to support the middle part of the stretchable composite sheet semi-finished product of the composite cover sheet along the width direction.

10. The manufacturing apparatus according to claim 8, characterized in that, A first clamping device is arranged on the downstream side of the folding device; the first clamping device is used to press the folded part of the stretchable composite sheet semi-finished product of the composite cover sheet.

11. The manufacturing apparatus according to claim 1, characterized in that, A second clamping device is arranged downstream of the third composite point. The second clamping device is used to introduce the hook element and composite the hook element onto the surface of the cover sheet of the stretch composite sheet semi-finished product to form a stretch composite sheet.

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