Winding device for non-woven fabric production

Abstract

The utility model relates to the technical field of non-woven fabric composite winding, in particular to a winding device for non-woven fabric production. The first unwinding roller is provided with a first non-woven fabric roll material; the second unwinding roller is provided with an elastic cloth roll material; the winding roller is used for winding the first non-woven fabric and the elastic fabric; the first dispensing mechanism is used for gluing the surface of the elastic cloth; the molding roller is arranged between the second unwinding roller and the winding roller, and a plurality of first annular grooves are formed in the molding roller in the axial direction of the molding roller; the abutting roller is used for acting with the molding roller to extrude the first non-woven fabric and the elastic fabric together; the plurality of first bending parts are used for bending the non-woven fabrics into the corresponding first annular grooves; the driving mechanism is connected with the first unwinding roller, the second unwinding roller, the winding roller, the molding roller and the abutting roller. The winding device for non-woven fabric production aims at solving the problems that in the prior art, composite non-woven fabric is prone to generating local stress concentration, and bonding points are prone to losing efficacy.

Description

A winding device for nonwoven fabric production Technical Field

[0001] This utility model relates to the field of nonwoven fabric composite winding technology, and more specifically, to a winding device for nonwoven fabric production. Background Technology

[0002] In recent years, with the surge in demand for highly elastic and breathable composite nonwoven fabrics in fields such as hygiene products (e.g., baby diapers, adult incontinence products), medical protective materials (e.g., medical bandages, protective clothing) and sports equipment, the shortcomings of traditional production processes in structural design and performance optimization have become increasingly apparent.

[0003] Taking the current mainstream sandwich stretching method as an example, although the process of pre-stretching an elastic material as an intermediate layer and then bonding it with the upper and lower layers of ordinary nonwoven fabric can give the material basic elasticity, the elastic material is prone to local stress concentration during the stretching process, resulting in irregular wrinkles on the surface of the composite nonwoven fabric, affecting the product's appearance and mechanical properties. At the same time, the ordinary nonwoven fabric and the elastic material are only connected by simple pressing, and the interface is prone to delamination, especially after repeated stretching, the adhesive points are prone to failure. Summary of the Invention

[0004] The main purpose of this invention is to propose a winding device for nonwoven fabric production, which aims to solve the problems of local stress concentration and easy failure of adhesive points in composite nonwoven fabrics in the prior art.

[0005] To solve the above-mentioned technical problems, a winding device for nonwoven fabric production is proposed, including: a support frame;

[0006] The first unwinding roller is rotatably mounted on the bracket and has a first roll of nonwoven fabric on it.

[0007] The second unwinding roller is rotatably mounted on the bracket and positioned relative to the first unwinding roller, and is provided with elastic fabric roll.

[0008] A take-up roller, rotatably mounted on the support, is used to take up the first nonwoven fabric and the elastic fabric.

[0009] The first adhesive dispensing mechanism is provided on the side of the elastic fabric close to the first non-woven fabric, and is used to apply adhesive to the surface of the elastic fabric.

[0010] A shaping roller is rotatably mounted on the bracket and positioned between the second unwinding roller and the take-up roller, and has a plurality of first annular grooves along its axial direction;

[0011] An abutment roller, rotatably mounted on the support, is used to act in conjunction with the shaping roller to squeeze the first nonwoven fabric and the elastic fabric together;

[0012] Multiple first bending elements are disposed on the bracket, each corresponding to a first annular groove, for bending the non-woven fabric into the corresponding first annular groove.

[0013] The drive mechanism is connected to the first unwinding roller, the second unwinding roller, the take-up roller, the shaping roller, and the abutment roller, respectively.

[0014] In any of the above technical solutions, further comprising:

[0015] A shrinking roller is rotatably mounted on the support and positioned between the first unwinding roller and the shaping roller. The take-up roller is used to cause the nonwoven fabric to shrink towards the center.

[0016] In any of the above technical solutions, the take-up roller further includes:

[0017] The roller is rotatably mounted on the support.

[0018] Two sets of threaded protruding rings are symmetrically arranged on the surface of the roller body.

[0019] In any of the above technical solutions, the roller body further includes a first conical section and a second conical section, the first conical section and the second conical section are symmetrically arranged, and the diameter at the connection between the first conical section and the second conical section is larger than the diameter at the other end.

[0020] In any of the above technical solutions, further comprising:

[0021] The third unwinding roller is rotatably mounted on the bracket and is located on the side of the second unwinding roller away from the first unwinding roller, and is provided with the second nonwoven fabric roll.

[0022] The abutting roller is provided with a plurality of second annular grooves respectively corresponding to each of the first annular grooves. The winding roller is also used to wind up the second non-woven fabric. The abutting roller is also used to work with the shaping roller to squeeze the second non-woven fabric and the elastic fabric together.

[0023] Multiple second bending members are disposed on the bracket, each corresponding to a second annular groove, for bending the non-woven fabric into the corresponding second annular groove;

[0024] The second adhesive applicator is located on the side of the elastic fabric near the second non-woven fabric and is used to apply adhesive to the side of the elastic fabric.

[0025] The drive mechanism is also connected to the third unwinding roller.

[0026] In any of the above technical solutions, further, each of the first annular grooves and each of the second annular grooves is provided with a plurality of protrusions on both sides, and each protrusion on the shaping roller and each protrusion on the abutting roller are provided in a one-to-one correspondence, and the protrusions are used to squeeze the fabric.

[0027] The beneficial effects are:

[0028] 1. The nonwoven fabric production winding device of this utility model presses the nonwoven fabric into the first annular groove of the molding roller and the second annular groove of the abutment roller through the first and second bending members, forming axially expanding wavy pleats. When stretched, the pleats unfold, increasing the width of the nonwoven fabric between adjacent bonding points, thereby improving the actual elongation of the composite material.

[0029] 2. The first and second adhesive dispensing mechanisms apply adhesive to both sides of the elastic cloth, and the localized pressure from the raised dot design increases the peel strength of the adhesive points.

[0030] 3. The symmetrical threaded convex ring and conical section design of the shrink roller drive the nonwoven fabric to shrink evenly towards the center, avoiding local stress concentration.

[0031] 4. Adjust the position of the bending component to customize the height of the wave folds and adapt to diverse needs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0033] Figure 1 is a front view structural schematic diagram of a nonwoven fabric production winding device according to an embodiment of the present utility model;

[0034] Figure 2 is a top view of a winding device for nonwoven fabric production according to an embodiment of the present invention.

[0035] Figure 3 is a three-dimensional structural schematic diagram of a winding device for nonwoven fabric production according to an embodiment of the present utility model.

[0036] Figure 4 is a structural schematic diagram of the shaping roller and the first bending component in a nonwoven fabric production winding device according to an embodiment of the present invention.

[0037] The annotations in the attached figures are explained as follows:

[0038] 1. Bracket;

[0039] 2. First unwinding roller;

[0040] 3. Second unwinding roll;

[0041] 4. Take-up roller;

[0042] 5. First dispensing mechanism;

[0043] 6. Shaping roller; 601. First annular groove;

[0044] 7. Abutting roller; 701. Second annular groove;

[0045] 8. First bending component;

[0046] 9. Drive mechanism;

[0047] 10. Shrink roller; 1001. Roller body; 1002. Threaded convex ring; 1003. First conical section; 1004. Second conical section;

[0048] 11. Third unwinding roll;

[0049] 12. Second bending component;

[0050] 13. Second dispensing mechanism;

[0051] 14. Protrusions. Detailed Implementation

[0052] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0053] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0054] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0057] The following embodiments will provide a detailed description of a winding device for nonwoven fabric production according to this application.

[0058] In this embodiment, as shown in Figures 1 to 4, the nonwoven fabric production winding device includes: a support 1;

[0059] The first unwinding roller 2 is rotatably mounted on the bracket 1 and has a first nonwoven fabric roll.

[0060] The second unwinding roller 3 is rotatably mounted on the bracket 1 and positioned relative to the first unwinding roller 2, and is equipped with elastic fabric roll.

[0061] The winding roller 4 is rotatably mounted on the bracket 1 and is used to wind up the first non-woven fabric and the elastic fabric.

[0062] The first dispensing mechanism 5 is provided on the side of the elastic fabric close to the first non-woven fabric, and is used to apply adhesive to the surface of the elastic fabric.

[0063] The shaping roller 6 is rotatably mounted on the bracket 1 and positioned between the second unwinding roller 3 and the take-up roller 4. It has multiple first annular grooves 601 along its axial direction.

[0064] The abutment roller 7 is rotatably mounted on the bracket 1 and is used to work with the shaping roller 6 to squeeze the first nonwoven fabric and the elastic fabric together.

[0065] Multiple first bending members 8 are set on the bracket 1, respectively corresponding to each first annular groove 601, and are used to bend the non-woven fabric into the corresponding first annular groove 601.

[0066] The drive mechanism 9 is connected to the first unwinding roller 2, the second unwinding roller 3, the take-up roller 4, the shaping roller 6, and the abutment roller 7, respectively.

[0067] In this technical solution, the bracket 1 includes two vertically mounted fixed plates that are symmetrically arranged front and rear and extend left and right. Each roller is horizontally and rotatably mounted on the two fixed plates. The take-up roller 4 is located on the far left, the second unwind roller 3 is located directly to the right of the take-up roller 4, and the first unwind roller 2 is located directly above the second unwind roller 3. The shaping roller 6 and the abutting roller 7 are symmetrically arranged vertically on the path between the take-up roller 4 and the second unwind roller 3. A certain gap is left between the shaping roller 6 and the abutting roller 7, through which the elastic fabric and the non-woven fabric are connected to the take-up roller 4 on the left.

[0068] The first dispensing mechanism 5 is located on the upper left side of the second unwinding roller 3, vertically arranged, and its vertical movement is controlled by a vertically arranged cylinder. Specifically, the first dispensing mechanism 5 includes multiple dispensing nozzles evenly arranged front and back, each corresponding to the vertical surface where each protrusion 14 is located. In use, the first dispensing mechanism 5 is driven up and down at certain time intervals by controlling the aforementioned cylinder (the interval is the same as the interval between two adjacent protrusions 14 pressing the fabric in the same vertical surface) to apply adhesive to the upper side of the elastic fabric. Then, the non-woven fabric and the elastic fabric are bonded together by the pressure of the shaping roller 6 and the abutment roller 7 using a multi-point adhesive bonding method.

[0069] The shaping roller 6 is located above the abutting roller 7. Twelve first annular grooves 601 are evenly arranged on the front and back of the shaping roller 6. Twelve first bending members 8 are evenly arranged on the right side of the shaping roller 6 through a support rod. The left end of each first bending member 8 is placed in the corresponding first annular groove 601. When winding, the non-woven fabric on the first unwinding roller 2 first contacts the first bending member 8, and then moves between the first bending member 8 and the corresponding first annular groove 601, and finally is squeezed by the abutting roller 7 and the shaping roller 6.

[0070] The drive mechanism 9 includes multiple drive motors, which respectively drive the rotation of the first unwinding roller 2, the second unwinding roller 3, the take-up roller 4, the shaping roller 6, and the abutment roller 7. Specifically, the drive mechanism 9 controls the rotation speed of each roller through a PLC, with the take-up roller 4 moving slightly faster than the shaping roller 6 to maintain stable material tension.

[0071] In some technical solutions, the bracket 1 is provided with a sliding groove, and the support rods that fix each first bending member 8 are provided with external threads. They are fixedly mounted on the bracket 1 by means of nuts, which makes it easy to adjust the depth of the first bending member 8 extending into the first annular groove 601.

[0072] In this embodiment, it also includes:

[0073] Shrink roller 10 is rotatably mounted on bracket 1 and positioned between first unwind roller 2 and shaping roller 6. Take-up roller 4 is used to cause nonwoven fabric to shrink towards the center.

[0074] In this technical solution, the shrink roller 10 is placed between the shaping roller 6 and the first unwinding roller 2. The shrink roller 10 pre-shrinks the first non-woven fabric, which makes it easier for each of the subsequent first bending members 8 to press and fold the non-woven fabric into the corresponding first annular groove 601. This reduces the pulling force between the non-woven fabrics in adjacent or non-adjacent first annular grooves 601 and balances the distribution of non-woven fabrics in each first annular groove 601.

[0075] In some technical solutions, two shrink rollers 10 are symmetrically arranged vertically.

[0076] In this embodiment, the take-up roller 4 includes:

[0077] Roller body 1001 is rotatably mounted on bracket 1;

[0078] Two sets of threaded protruding rings 1002 are symmetrically arranged on the surface of the roller body 1001.

[0079] In this technical solution, two sets of threaded protrusions 1002 are symmetrically arranged on the surface of the roller body 1001. The threads provide a shrinking force to the nonwoven fabric as it passes through.

[0080] In this embodiment, the roller body 1001 includes a first conical section 1003 and a second conical section 1004. The first conical section 1003 and the second conical section 1004 are symmetrically arranged, and the diameter at the connection between the first conical section 1003 and the second conical section 1004 is larger than the diameter at the other end.

[0081] In this technical solution, the connection point between the first conical section 1003 and the second conical section 1004 is the middle position of the roller body 1001. The diameter at this position is 1.2-1.4 times the diameter of the front or rear end of the roller body 1001. The conical shape ensures that the middle of the roller body 1001 contacts the nonwoven fabric on the same cross-section first. The threaded convex ring 1002 of the shrink roller 10 is symmetrically spiral. When the nonwoven fabric passes through, the inclined surface of the thread generates radial extrusion force, which, combined with the diameter change of the conical section, forces the nonwoven fabric to shrink uniformly towards the center along the axial direction.

[0082] In this embodiment, it also includes:

[0083] The third unwinding roller 11 is rotatably mounted on the bracket 1 and is located on the side of the second unwinding roller 3 away from the first unwinding roller 2, and is provided with the second nonwoven fabric roll.

[0084] The abutting roller 7 is provided with a plurality of second annular grooves 701 that correspond to each of the first annular grooves 601 respectively. The winding roller 4 is also used to wind up the second non-woven fabric. The abutting roller 7 is also used to work with the shaping roller 6 to squeeze the second non-woven fabric and the elastic fabric together.

[0085] Multiple second bending members 12 are set on the bracket 1, respectively corresponding to each second annular groove 701, and are used to bend the non-woven fabric into the corresponding second annular groove 701.

[0086] The second adhesive applicator 13 is provided on the side of the elastic fabric close to the second non-woven fabric, and is used to apply adhesive to the side of the elastic fabric.

[0087] The drive mechanism 9 is also connected to the third unwinding roller 11.

[0088] In this technical solution, a third unwinding roller 11 is symmetrically arranged on the lower side of the second take-up roller 4, and the abutting roller 7 is configured with the same structure as the shaping roller 6. At the same time, multiple second bending members 12 are arranged on the right side of the abutting roller 7, which can simultaneously adhere the wavy non-woven fabric to both sides of the elastic fabric.

[0089] Specifically, each of the second annular grooves 701 is coplanar with the corresponding first annular groove 601.

[0090] In this embodiment, each of the first annular grooves 601 and each of the second annular grooves 701 has a plurality of protrusions 14 on both sides. Each protrusion 14 on the shaping roller 6 and each protrusion 14 on the abutting roller 7 are arranged in a one-to-one correspondence. The protrusions 14 are used to squeeze the fabric.

[0091] In this technical solution, each of the first annular grooves 601 and each of the second annular grooves 701 has a number of protrusions 14 evenly arranged on both the front and rear sides, and the number of protrusions 14 on the same circumference is 10-24.

[0092] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A winding device for nonwoven fabric production, characterized in that, include: Support (1); First unwinding roller (2), rotatably mounted on the support (1), with a first nonwoven fabric roll; The second unwinding roller (3) is rotatably mounted on the bracket (1) and positioned opposite the first unwinding roller (2), and is provided with an elastic fabric roll; the take-up roller (4) is rotatably mounted on the bracket (1) and is used to take up the first nonwoven fabric and the elastic fabric; the first glue dispensing mechanism (5) is positioned on the side of the elastic fabric close to the first nonwoven fabric and is used to apply glue to the surface of the elastic fabric; the shaping roller (6) is rotatably mounted on the bracket (1) and positioned between the second unwinding roller (3) and the take-up roller (4), and is provided with a plurality of first annular grooves along its axial direction. (601); Abutting roller (7), rotatably mounted on the bracket (1), is used to work with the shaping roller (6) to squeeze the first nonwoven fabric and the elastic fabric together; Multiple first bending members (8), mounted on the bracket (1), are respectively positioned corresponding to each of the first annular grooves (601), and are used to bend the nonwoven fabric into the corresponding first annular groove (601); Driving mechanism (9), is respectively connected to the first unwinding roller (2), the second unwinding roller (3), the winding roller (4), the shaping roller (6) and the abutting roller (7).

2. The winding device for nonwoven fabric production according to claim 1, characterized in that, Also includes: Shrinking roller (10) is rotatably mounted on the bracket (1) and positioned between the first unwinding roller (2) and the shaping roller (6). The take-up roller (4) is used to cause the nonwoven fabric to shrink towards the center.

3. The winding device for nonwoven fabric production according to claim 2, characterized in that, The take-up roller (4) includes: a roller body (1001) rotatably mounted on the bracket (1); and two sets of threaded protrusions (1002) symmetrically mounted on the surface of the roller body (1001).

4. The winding device for nonwoven fabric production according to claim 3, characterized in that, The roller body (1001) includes a first conical section (1003) and a second conical section (1004), the first conical section (1003) and the second conical section (1004) are symmetrically arranged, and the diameter at the connection between the first conical section (1003) and the second conical section (1004) is larger than the diameter at the other end.

5. The winding device for nonwoven fabric production according to claim 1 or 2, characterized in that, Also includes: The third unwinding roller (11) is rotatably mounted on the bracket (1) and is located on the side of the second unwinding roller (3) away from the first unwinding roller (2), and is provided with a second nonwoven fabric roll; the abutting roller (7) is provided with a plurality of second annular grooves (701) respectively corresponding to each of the first annular grooves (601); the winding roller (4) is also used to wind up the second nonwoven fabric; the abutting roller (7) is also used to work with the shaping roller (6) to squeeze the second nonwoven fabric and the elastic fabric together; a plurality of second bending members (12) are mounted on the bracket (1) and are respectively provided corresponding to each of the second annular grooves (701), and are used to bend the nonwoven fabric into the corresponding second annular groove (701); the second glue dispensing mechanism (13) is provided corresponding to the side of the elastic fabric close to the second nonwoven fabric, and is used to apply glue to the side of the elastic fabric; the driving mechanism (9) is also connected to the third unwinding roller (11).

6. The winding device for nonwoven fabric production according to claim 5, characterized in that, Each of the first annular grooves (601) and each of the second annular grooves (701) has several protrusions (14) on both sides. Each protrusion (14) on the shaping roller (6) and each protrusion (14) on the abutting roller (7) are arranged in a one-to-one correspondence. The protrusions (14) are used to squeeze the fabric.

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