Multi-model hygienic product composite production line

Abstract

The utility model relates to the technical field of hygienic product production equipment, in particular to a multi-model hygienic product composite production line which comprises an upper layer conveying line, a middle layer conveying line and a lower layer conveying line. The upper surface layer non-woven fabric conveying line is located between the two-side non-woven fabric conveying lines and the dust-free paper conveying line and used for being combined with the two-side non-woven fabric conveying lines or the dust-free paper conveying line. The lower-layer conveying line is located below the middle-layer conveying line and used for being combined with the middle-layer conveying line or the dust-free paper conveying line, the lower-layer conveying line comprises a waterproof film conveying line and a release paper conveying line, and the release paper conveying line is located behind the waterproof film conveying line and used for enabling release paper to be combined with the bottom of a waterproof film. The technical problems that an existing production line can only produce the same type of hygienic products, the number of devices used by enterprises is large, and the purchasing cost of the devices is high can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sanitary product production equipment technical field, concretely is multi -model sanitary product composite production line. BACKGROUND

[0002] Female sanitary products include sanitary napkins, panty liners, sleep pants and various products, each product is different in size, structure, shape, and needs to be produced by using special production line in actual production process, and the devices between each other usually cannot be shared.

[0003] The structure and size of mini sanitary napkins are similar to those of panty liners, and the difference between the two is not large; and the length of the panty liner is less than that of the mini sanitary napkin, so the length size in the conveying, compounding and cutting areas can be adapted. In view of this, the existing mini sanitary napkin production line is improved to be used for producing mini sanitary napkins and panty liners, thereby realizing the production of different products by using one production line, effectively reducing the number of enterprise equipment, equipment area and equipment purchase cost.

[0004] The utility model provides a multi -model sanitary product composite production line can solve the existing production line only produces same kind of sanitary product, leads to enterprise uses device number many, equipment purchase cost big technical problem.

[0005] The application provides the following technical scheme:

[0006] The multi -model sanitary product composite production line comprises an upper conveying line, a middle conveying line and a lower conveying line, the upper conveying line comprises two side non -woven fabric conveying lines, an upper surface non -woven fabric conveying line and a dustless paper conveying line, the upper surface non -woven fabric conveying line is located between the two side non -woven fabric conveying lines and the dustless paper conveying line, and is used for being compounded with the two side non -woven fabric conveying lines or the dustless paper conveying line and being used together;The lower conveying line is located below the middle conveying line and is used for being compounded with the middle conveying line or the dustless paper conveying line and being used together, the lower conveying line comprises a waterproof film conveying line and a release paper conveying line, the release paper conveying line is located behind the waterproof film conveying line and is used for compounding the bottom of release paper and waterproof film.

[0007] Advantages:

[0008] 1、By setting three kinds of materials in the upper layer conveying line, the upper layer non-woven fabric can be compounded with the other two non-woven fabrics during use, which is used for producing different products; for example, the two side non-woven fabrics are compounded on the upper layer non-woven fabric to produce the surface layer of mini sanitary napkin, and the upper layer non-woven fabric is compounded with dust-free paper to produce the surface layer and middle layer of pad.

[0009] 2、The middle layer conveying line is only used when producing mini sanitary napkin, which is used for conveying the middle water-absorbing paper of mini sanitary napkin and compounding the surface layer of mini sanitary napkin compounded by the upper layer conveying line with the water-absorbing paper; and the pad product does not have middle water-absorbing paper, so the middle layer conveying line is stopped when producing pad product.

[0010] 3、The lower layer conveying line includes waterproof film conveying line and release paper conveying line, and the waterproof film and release paper are used as bottom layer materials, which are used when producing mini sanitary napkin or pad, and the conveying line is a compound shared conveying line; for example, when producing mini sanitary napkin, the waterproof film is used for compounding with the bottom of water-absorbing paper, when producing pad, the waterproof film is used for compounding with the bottom of dust-free paper, and finally the release paper is compounded on the bottom of waterproof film, so as to obtain the multi-layer compound structure of different products.

[0011] 4、The production line is transformed in the application, so that one production line can be used for producing mini sanitary napkin and pad, and each conveying line is arranged according to the structure of sanitary napkin in upper, middle and lower, which can improve the space utilization and facilitate switching different products; the technical problem that the existing production line can only produce one type of sanitary product, resulting in large number of equipment used by enterprises, large equipment area and high equipment purchase cost is solved.

[0012] Further, the upper layer non-woven fabric conveying line includes an upper layer feeding roller, an upper layer conveying roller, a first fixed glue gun, a first compound roller, a second fixed glue gun and a second compound roller arranged on the rack, the first fixed glue gun is used for coating fixed glue on the top two sides of the upper layer non-woven fabric, the second fixed glue gun is located between the first compound roller and the second compound roller, and is used for coating fixed glue on the bottom of the upper layer non-woven fabric.

[0013] Beneficial effect: the upper layer non-woven fabric is set in a roll on the upper layer feeding roller and is conveyed through multiple conveying rollers in turn, wherein when producing mini sanitary napkin, the first compound roller and the first fixed glue gun are used, and the second compound roller and the second fixed glue gun are stopped; the first fixed glue gun coats glue on the top two sides of the upper layer non-woven fabric, and the upper layer non-woven fabric is compounded with the two side non-woven fabrics under the action of the first compound roller to form the upper layer of mini sanitary napkin.

[0014] Further, the two side non-woven fabric conveying line includes two side feeding rollers and two side conveying rollers arranged on the rack, and the two side conveying rollers are used for conveying the two side non-woven fabrics to the first compound roller to be compounded with the top two sides of the upper layer non-woven fabric.

[0015] Beneficial effect: the two sides of the non-woven fabric conveying line is used in the production of mini sanitary napkin, and is not used in the production of pad; when producing mini sanitary napkin, the two sides of the non-woven fabric are set on the two sides of the feeding roller in a roll, and are conveyed to the first composite roller by the conveying roller for compounding with the upper surface layer of non-woven fabric.

[0016] Further, the dust-free paper conveying line comprises a dust-free paper feeding roller, a dust-free paper conveying roller, and the dust-free paper conveying roller is used to convey the dust-free paper to the second composite roller for compounding with the bottom of the upper surface layer of non-woven fabric.

[0017] Beneficial effect: the dust-free paper conveying line is used in the production of pad, and is used with the second fixed glue gun and the second composite roller of the upper surface layer of non-woven fabric conveying line, and the dust-free paper is used as the middle layer of the pad, and after the second fixed glue gun is used to glue the bottom of the upper surface layer of non-woven fabric, the bottom of the upper surface layer of non-woven fabric is compounded with the top of the dust-free paper under the action of the second composite roller.

[0018] Further, the upper layer conveying line further comprises two sides of the embossing roller, the surface layer embossing roller and the upper composite layer conveying roller which are arranged on the rack, the two sides of the embossing roller and the surface layer embossing roller are located behind the second composite roller, and the upper composite layer conveying roller is used to convey the upper composite layer compounded by the first composite roller or the second composite roller to the middle layer conveying line or the lower layer conveying line.

[0019] Beneficial effect: the two sides of the embossing roller are used in the production of mini sanitary napkin for embossing the two sides of the upper surface layer of non-woven fabric, and the surface layer embossing roller is used in the production of pad for embossing the upper surface layer of the dust-free paper.

[0020] Further, the middle layer conveying line comprises a water-absorbing paper feeding roller, a water-absorbing paper conveying roller and a middle layer composite roller, a flow guide groove pressing roller is further arranged behind the middle layer composite roller, and a third fixed glue gun is further arranged in front of the middle layer composite roller, the third fixed glue gun is used to glue the bottom of the upper surface layer of non-woven fabric, and the middle layer composite roller is used to compound the bottom of the upper surface layer of non-woven fabric with the top of the water-absorbing paper.

[0021] Beneficial effect: the middle layer conveying line is mainly used for conveying the water-absorbing paper, and is used in the production of mini sanitary napkin and is not used in the production of pad; when the upper composite layer is compounded with the water-absorbing paper of the middle layer, the flow guide groove pressing roller is used to press the flow guide groove on the composite layer, the flow guide groove pressing roller is provided with a pressing roller cutter and a flow guide groove shape, and the flow guide groove can be pressed when the composite layer passes through the flow guide groove pressing roller.

[0022] Further, the waterproof membrane conveying line comprises a waterproof membrane feeding roller, a waterproof membrane conveying roller, a waterproof membrane glue gun and a waterproof membrane composite roller which are arranged on the rack, the waterproof membrane glue gun is used to glue the upper surface of the waterproof membrane, the waterproof membrane composite roller is located behind the flow guide groove pressing roller, and is used to compound the upper surface of the waterproof membrane with the lower surface of the water-absorbing paper or the lower surface of the dust-free paper.

[0023] Beneficial effect: the waterproof film as the bottom film of the sanitary pad or the mini sanitary napkin can be shared, and no switching is needed during use; when the mini sanitary napkin is produced, the upper surface of the waterproof film is glued to the lower surface of the water-absorbing paper; when the sanitary pad is produced, the upper surface of the waterproof film is used to be glued to the lower surface of the dust-free paper.

[0024] Further, the release paper conveying line comprises a release paper feeding roller, a release paper conveying roller, a release paper glue gun and a release paper composite roller, the release paper glue gun is used for gluing the upper surface of the release paper, and the release paper composite roller is used for compositing the lower surface of the waterproof film and the upper surface of the release paper.

[0025] Beneficial effect: the release paper is also a shared material, which is mainly used for compositing the adhesive tape to the bottom of the waterproof film, so that the release paper can be easily torn off during subsequent use, and the adhesive tape on the waterproof film is adhered to the underpants.

[0026] Further, the middle layer composite roller, the waterproof film composite roller and the release paper composite roller are arranged on the same horizontal line, and the first peripheral sealing roller is further arranged between the waterproof film composite roller and the release paper composite roller, and the second peripheral sealing roller is further arranged behind the release paper composite roller.

[0027] Beneficial effect: the middle layer composite roller, the waterproof film composite roller and the release paper composite roller are arranged on the same horizontal line, which is beneficial to save space and optimize the layout; the first peripheral sealing roller is used when the sanitary pad is produced, and is used for peripheral sealing and pressing of the composite layer of the sanitary pad; the second peripheral sealing roller is used when the mini sanitary napkin is produced, and is used for peripheral sealing and pressing of the composite layer of the mini sanitary napkin.

[0028] Further, the second peripheral sealing roller is provided with a separation roller, the rear upper portion of the separation roller is provided with a first product post-processing production line, and the rear lower portion of the separation roller is provided with a second product post-processing production line.

[0029] Beneficial effect: the composite layer after the peripheral sealing and pressing treatment is conveyed to the post-processing production line for cutting, film coating and other treatments, wherein the first product post-processing production line is used for producing the sanitary pad product, and the second product post-processing production line is used for producing the mini sanitary napkin product. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a plane schematic view of the multi-model sanitary product composite production line of the utility model;

[0031] Figure 2 It is Figure 1 It is a structure schematic view of the middle upper layer conveying line and the lower layer conveying line;

[0032] Figure 3 It is a plane schematic view of the multi-model sanitary product composite production line in embodiment two. DETAILED DESCRIPTION

[0033] The following detailed description illustrates the specific implementation method:

[0034] The markings in the accompanying drawings include: upper conveyor line 1, two non-woven fabric conveyor lines 11, two feeding rollers 111, two conveyor rollers 112, upper surface non-woven fabric conveyor line 12, upper surface feeding roller 121, upper surface conveyor roller 122, first fixed glue gun 123, first composite roller 124, second fixed glue gun 125, second composite roller 126, cleanroom paper conveyor line 13, cleanroom paper feeding roller 131, cleanroom paper conveyor roller 132, two embossing rollers 14, surface embossing roller 15, third fixed glue gun 16, upper composite layer conveyor roller 17, and middle conveyor line 2. Absorbent paper feeding roller 21, absorbent paper conveying roller 22, middle layer composite roller 23, guide groove pressure roller 24, core internal cutter 25, lower layer conveying line 3, waterproof membrane conveying line 31, upper feeding roller 31101, lower feeding roller 31102, waterproof membrane conveying roller 312, waterproof membrane glue gun 313, waterproof membrane composite roller 314, release paper conveying line 32, release paper feeding roller 321, release paper conveying roller 322, release paper glue gun 323, release paper composite roller 324, release paper internal cutter 325, first sealing roller 41, second sealing roller 42, separation roller 43.

[0035] Example 1

[0036] like Figure 1 As shown, the multi-model sanitary product composite production line includes an upper conveyor line 1, a middle conveyor line 2, and a lower conveyor line 3, arranged in an upper-middle-lower spatial layout. Specifically, this embodiment uses the production of mini sanitary napkins and panty liners as examples for detailed explanation. The mini sanitary napkin includes two non-woven fabric layers on either side and a top non-woven fabric layer. The two non-woven fabric layers are laminated to the sides of the top non-woven fabric layer to form the side wings of the mini sanitary napkin. It also includes a middle absorbent paper layer, a bottom waterproof membrane layer, and a release paper layer. The panty liner includes a top non-woven fabric layer, a middle dust-free paper layer, a bottom waterproof membrane layer, and a release paper layer. Compared to the mini sanitary napkin, the panty liner does not have the middle absorbent paper layer and the two top non-woven fabric layers; however, its top non-woven fabric layer and bottom waterproof membrane layer and release paper layer can be shared.

[0037] like Figure 1As shown, the upper layer conveying line 1 comprises two side non-woven fabric conveying lines 11, an upper surface layer non-woven fabric conveying line 12 and a dust-free paper conveying line 13, the upper surface layer non-woven fabric conveying line 12 is located between the two side non-woven fabric conveying lines 11 and the dust-free paper conveying line 13, and is used for compounding with the two side non-woven fabric conveying lines 11 or the dust-free paper conveying line 13; the middle layer conveying line 2 is located below the upper layer conveying line 1, and the lower layer conveying line 3 is located below the middle layer conveying line 2, and the lower layer conveying line 3 is used for compounding with the middle layer conveying line 2 or the dust-free paper conveying line 13; the lower layer conveying line 3 comprises a waterproof film conveying line 31 and a release paper conveying line 32, the release paper conveying line 32 is located behind the waterproof film conveying line 31, and is used for compounding the release paper with the bottom of the waterproof film.

[0038] As shown in the Figure 2 upper surface layer non-woven fabric conveying line 12 comprises an upper surface layer feeding roller 121 arranged on a rack, a plurality of upper surface layer conveying rollers 122, a first fixed glue gun 123, a first compounding roller 124, a second fixed glue gun 125 and a second compounding roller 126, the first fixed glue gun 123 is arranged below the upper surface layer non-woven fabric and is used for coating the top two sides of the upper surface layer non-woven fabric with fixed glue, the second fixed glue gun 125 is located between the first compounding roller 124 and the second compounding roller 126 and above the upper surface layer non-woven fabric, and is used for coating the bottom of the upper surface layer non-woven fabric with fixed glue.

[0039] The upper surface layer non-woven fabric is arranged in a roll on the upper surface layer feeding roller 121 and is conveyed through the plurality of upper surface layer conveying rollers 122 in turn, wherein when producing mini sanitary napkins, the first compounding roller 124 and the first fixed glue gun 123 are used, and the second compounding roller 126 and the second fixed glue gun 125 are not used, in other embodiments except this embodiment, when producing mini sanitary napkins, the first compounding roller 124, the first fixed glue gun 123 and the second compounding roller 126 can be used, and the second fixed glue gun 125 is not used; when producing sanitary pads, the first compounding roller 124 and the first fixed glue gun 123 are not used, and the second compounding roller 126 and the second fixed glue gun 125 are used, more preferably, the first compounding roller 124, the second compounding roller 126 and the second fixed glue gun 125 are used, and the first fixed glue gun 123 is not used.

[0040] The two-sided nonwoven fabric conveyor line 11 is located to the lower left of the upper surface nonwoven fabric conveyor line 12. It includes two-sided feeding rollers 111 and several two-sided conveyor rollers 112 mounted on the frame. The two-sided conveyor rollers 112 are used to convey the two-sided nonwoven fabric to the first composite roller 124 for lamination with the top two sides of the upper surface nonwoven fabric. The two-sided nonwoven fabric conveyor line 11 is used when producing mini sanitary napkins and is not used when producing panty liners. When producing mini sanitary napkins, the two-sided nonwoven fabric is rolled up and placed on the two-sided feeding rollers 111, and conveyed to the first composite roller 124 by the conveyor rollers. The first fixed glue gun 123 applies glue to the top two sides of the upper surface nonwoven fabric, and under the action of the first composite roller 124, it is laminated with the two-sided nonwoven fabric to form the upper layer of the mini sanitary napkin.

[0041] The cleanroom paper conveyor line 13 is located to the upper right of the upper surface nonwoven fabric conveyor line 12. It includes a cleanroom paper feeding roller 131 and several cleanroom paper conveying rollers 132. The cleanroom paper conveying rollers 132 are used to convey the cleanroom paper to the second composite roller 126 for lamination with the bottom of the upper surface nonwoven fabric. The cleanroom paper conveyor line 13 is used in the production of mattress protectors and works in conjunction with the second fixed glue gun 125 and the second composite roller 126 of the upper surface nonwoven fabric conveyor line 12. The cleanroom paper serves as the middle layer of the mattress protector. After the second fixed glue gun 125 applies glue to the bottom of the upper surface nonwoven fabric, the bottom of the upper surface nonwoven fabric is laminated with the top of the cleanroom paper under the action of the second composite roller 126.

[0042] The upper conveyor line 1 also includes two side embossing rollers 14, a surface embossing roller 15, and an upper composite layer conveyor roller 17 mounted on the frame. The two side embossing rollers 14 and the surface embossing roller 15 are located behind the second composite roller 126. The upper composite layer conveyor roller 17 is used to convey the upper composite layer, which is composited by the first composite roller 124 or the second composite roller 126, to the middle conveyor line 2 or the lower conveyor line 3. The two side embossing rollers 14 are used in the production of mini sanitary napkins to emboss the two sides of the upper surface nonwoven fabric. The surface embossing roller 15 is used in the production of panty liners to emboss the upper surface of the cleanroom paper. In other embodiments besides this one, the two side embossing rollers 14 and the surface embossing roller 15 can also be used simultaneously in the production of mini sanitary napkins and panty liners to emboss the two sides and the surface of the product at the same time.

[0043] like Figures 1-2 As shown, the middle layer conveyor line 2 includes a paper feeding roller 21, several paper conveying rollers 22, and a middle layer composite roller 23. A guide groove pressure roller 24 is also provided behind the middle layer composite roller 23, and a third fixed glue gun 16 is provided in front of the middle layer composite roller 23. The third fixed glue gun 16 is set on the frame and located above the middle layer conveyor line 2. The third fixed glue gun 16 is used to apply glue to the bottom of the upper surface non-woven fabric, and the middle layer composite roller 23 is used to composite the bottom of the upper surface non-woven fabric with the top of the paper.

[0044] The middle layer conveying line 2 is mainly used for conveying the water-absorbing paper and is used in the production of mini sanitary napkins and is stopped in the production of pads; after the upper composite layer (a composite layer composed of the non-woven fabric on both sides and the upper surface layer non-woven fabric) and the water-absorbing paper of the middle layer are compounded, the flow guide groove pressing roller 24 is used to press the flow guide groove on the composite layer (a composite layer composed of the upper composite layer and the water-absorbing paper), and the flow guide groove pressing roller 24 is provided with a pressing roller cutter and a flow guide groove shape, so that when the composite layer passes through the flow guide groove pressing roller 24, the flow guide groove can be pressed.

[0045] The waterproof film conveying line 31 comprises a waterproof film unwinding roller, a plurality of waterproof film conveying rollers 312, a waterproof film glue gun 313 and a waterproof film composite roller 314 arranged on the rack. Specifically, the waterproof film unwinding roller in the embodiment comprises an upper unwinding roller 31101 and a lower unwinding roller 31102. The upper unwinding roller 31101 is arranged above the rack, and the lower unwinding roller 31102 is arranged below the rack. The waterproof film is wound on the upper unwinding roller 31101 and is pulled to the waterproof film conveying roller 312 through the lower unwinding roller 31102, and is conveyed to the waterproof film composite roller 314 through the waterproof film conveying roller 312. The waterproof film glue gun 313 is located above the waterproof film and is used for gluing the upper surface of the waterproof film. The waterproof film composite roller 314 is located behind the flow guide groove pressing roller 24 and is used for compounding the upper surface of the waterproof film with the lower surface of the water-absorbing paper or the lower surface of the dust-free paper.

[0046] The release paper conveying line 32 comprises a release paper unwinding roller 321, a plurality of release paper conveying rollers 322, a release paper glue gun 323 and a release paper composite roller 324. The release paper glue gun 323 is used for gluing the upper surface of the release paper, and the release paper composite roller 324 is used for compounding the lower surface of the waterproof film with the upper surface of the release paper. The waterproof film and the release paper can be shared as the bottom film of the pad or the mini sanitary napkin, and there is no need to switch when used. When producing the mini sanitary napkin, the upper surface of the waterproof film is first compounded with the lower surface of the water-absorbing paper by gluing, and the release paper is compounded with the lower surface of the waterproof film. When producing the pad, the upper surface of the waterproof film is used for compounding with the lower surface of the dust-free paper by gluing, and the release paper is compounded with the lower surface of the waterproof film. The release paper is mainly used for compounding the adhesive tape to the bottom of the waterproof film, so that the release paper can be easily torn off for subsequent use, and the adhesive tape on the waterproof film is adhered to the bottom pants.

[0047] More preferably, the middle layer composite roller 23, the waterproof film composite roller 314 and the release paper composite roller 324 in the embodiment are on the same horizontal line, and the first wrapping roller 41 is further arranged between the waterproof film composite roller 314 and the release paper composite roller 324, and the second wrapping roller 42 is further arranged after the release paper composite roller 324. The first wrapping roller 41 is used when producing the sanitary pad and is used for wrapping and pressing the composite layer of the sanitary pad, and the second wrapping roller 42 is used when producing the mini sanitary napkin and is used for wrapping and pressing the composite layer of the mini sanitary napkin. The wrapping roller is a commonly used roller for wrapping and pressing the edge of the composite paper when producing the sanitary product, and is a hot-pressing edge. The embodiment is not improved, and will not be described in detail here.

[0048] The second wrapping roller 42 is followed by a separating roller 43, and the first product post-processing production line is arranged above the rear of the separating roller 43, and the second product post-processing production line is arranged below the rear of the separating roller 43. The composite layer after the wrapping and pressing treatment is transported to the post-processing production line for subsequent processing such as cutting and film wrapping. The first product post-processing production line is the production line after the composite of the sanitary pad product, and the second product post-processing production line is the production line after the composite of the mini sanitary napkin product. The embodiment will not be described in detail.

[0049] The application improves the production line, so that one production line can be used to produce both mini sanitary napkins and sanitary pads, and each conveying line is arranged according to the structure of the sanitary napkin in an upper-middle-lower manner, which can improve the space utilization and facilitate the switching of different products. The existing production line can only produce one type of sanitary product, which leads to the technical problems of a large number of equipment used by enterprises, a large equipment area, and high equipment purchase cost.

[0050] Embodiment two

[0051] The difference between the embodiment and the embodiment one is that, as shown in Figure 3 The middle layer conveying line 2 is further provided with a core inner cutter 25, and the core inner cutter 25 is located before the middle layer composite roller 23. The core inner cutter 25 is used to cut the water-absorbing paper into a shape first, and then composite with the bottom of the whole upper layer non-woven fabric.

[0052] The release paper conveying line 32 is further provided with a release paper inner cutter 325, and the release paper inner cutter 325 is located after the release paper glue gun 323. When producing the mini sanitary napkin, the release paper after being glued is cut into a shape by the release paper inner cutter 325, and then is composite with the waterproof film. Finally, the second wrapping roller 42 is used to hot-press the edge of the composite layer of the mini sanitary napkin, and then the mini sanitary napkin is transported to the second product production line at the rear end for cutting, film wrapping and other post-processing.

[0053] The above is only an embodiment of the present application, and the present application is not limited to the field of the embodiment, and the common knowledge such as specific structures and properties in the scheme is not described in detail herein. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of the claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A multi-model sanitary product composite production line, characterized by, The upper layer conveying line, the middle layer conveying line and the lower layer conveying line are included, the upper layer conveying line includes two side non-woven fabric conveying lines, an upper surface layer non-woven fabric conveying line and a dust-free paper conveying line, the upper surface layer non-woven fabric conveying line is located between the two side non-woven fabric conveying lines and the dust-free paper conveying line and is used for being compounded with the two side non-woven fabric conveying lines or the dust-free paper conveying line; the lower layer conveying line is located below the middle layer conveying line and is used for being compounded with the middle layer conveying line or the dust-free paper conveying line, the lower layer conveying line includes a waterproof film conveying line and a release paper conveying line, the release paper conveying line is located behind the waterproof film conveying line and is used for compounding the release paper with the bottom of the waterproof film.

2. The multi-size sanitary product composite production line according to claim 1, characterized in that: The upper surface layer non-woven fabric conveying line includes an upper surface layer feeding roller, an upper surface layer conveying roller, a first fixed glue gun, a first compounding roller, a second fixed glue gun and a second compounding roller which are arranged on the rack, the first fixed glue gun is used for coating fixed glue on the top of the upper surface layer non-woven fabric, the second fixed glue gun is located between the first compounding roller and the second compounding roller and is used for coating fixed glue on the bottom of the upper surface layer non-woven fabric.

3. The multi-size sanitary product composite production line according to claim 2, characterized in that: The two side non-woven fabric conveying lines include two side feeding rollers and two side conveying rollers which are arranged on the rack, the two side conveying rollers are used for conveying the two side non-woven fabrics to the first compounding roller to be compounded with the top of the upper surface layer non-woven fabric.

4. The multi-size sanitary product composite production line according to claim 3, characterized in that: The dust-free paper conveying line includes a dust-free paper feeding roller and a dust-free paper conveying roller, the dust-free paper conveying roller is used for conveying the dust-free paper to the second compounding roller to be compounded with the bottom of the upper surface layer non-woven fabric.

5. The multi-size sanitary product composite production line according to claim 4, characterized in that: The upper layer conveying line further includes two side embossing rollers, a surface layer embossing roller and an upper compounding layer conveying roller which are arranged on the rack, the two side embossing rollers and the surface layer embossing roller are located behind the second compounding roller, the upper compounding layer conveying roller is used for conveying the upper compounding layer compounded by the first compounding roller or the second compounding roller to the middle layer conveying line or the lower layer conveying line.

6. The multi-size sanitary article complex production line according to any one of claims 1 to 5, characterized in that: The middle layer conveying line includes a water absorption paper feeding roller, a water absorption paper conveying roller and a middle layer compounding roller, a flow guide groove pressing roller is further arranged behind the middle layer compounding roller, a third fixed glue gun is further arranged in front of the middle layer compounding roller, the third fixed glue gun is used for coating glue on the bottom of the upper surface layer non-woven fabric, and the middle layer compounding roller is used for compounding the bottom of the upper surface layer non-woven fabric with the top of the water absorption paper.

7. The multi-size sanitary product composite production line according to claim 6, characterized in that: The waterproof film conveying line includes a waterproof film feeding roller, a waterproof film conveying roller, a waterproof film glue coating gun and a waterproof film compounding roller which are arranged on the rack, the waterproof film glue coating gun is used for coating glue on the upper surface of the waterproof film, and the waterproof film compounding roller is located behind the flow guide groove pressing roller and is used for compounding the upper surface of the waterproof film with the lower surface of the water absorption paper or the lower surface of the dust-free paper.

8. The multi-size sanitary product composite production line according to claim 7, characterized in that: The release paper conveying line includes a release paper feeding roller, a release paper conveying roller, a release paper glue coating gun and a release paper compounding roller, the release paper glue coating gun is used for coating glue on the upper surface of the release paper, and the release paper compounding roller is used for compounding the lower surface of the waterproof film with the upper surface of the release paper.

9. The multi-size sanitary product composite production line according to claim 8, characterized in that: The middle layer compounding roller, the waterproof film compounding roller and the release paper compounding roller are on the same horizontal line, a first week seal roller is further arranged between the waterproof film compounding roller and the release paper compounding roller, and a second week seal roller is further arranged behind the release paper compounding roller.

10. The multi-size sanitary product composite production line according to claim 9, characterized in that: A separation roller is arranged behind the second week seal roller, a first product post-processing production line is arranged above and behind the separation roller, and a second product post-processing production line is arranged below and behind the separation roller.

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