Wave-shaped wrinkle manufacturing device for elastic non-woven fabric before welding

Abstract

A device for manufacturing wavy wrinkles before welding of elastic non-woven fabric comprises an arc-shaped roller assembly, a meshing roller set and a welding bottom roller which are arranged in sequence, the arc-shaped roller assembly comprises two mounting bases, an arc-shaped shaft is arranged between the two mounting bases, the arc-shaped shaft is sleeved with a roller assembly, and the roller assembly is arranged on the arc-shaped shaft. The roller assembly comprises a middle roller, a reverse thread roller and a forward thread roller, wherein the reverse thread roller and the forward thread roller are located on the two sides of the middle roller. Each meshing roller set is composed of an upper toothed bar and a lower toothed bar which are meshed with each other, the number of the meshing roller sets is two or more, and the tooth pitches of the toothed bars in the meshing roller sets are gradually decreased backwards along with the working procedure; and the welding bottom roller is provided with dimpled grains which are uniformly distributed, so that the pleated non-woven fabric is positioned, and the precision and the quality of subsequent hybrid welding are improved. The width of the non-woven fabric before pleating is shrunk inwards through the arc-shaped roller assembly, the situation that the pulling force borne by the non-woven fabric locally is too large is avoided, the local pulling force borne by the non-woven fabric in the pleating process is further reduced through cooperation of the multiple meshing roller sets, and the non-woven fabric is prevented from being stacked in the pleating process.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic non-woven fabric processing, in particular to a device for making wavy folds of elastic non-woven fabric before welding. Background Art

[0002] A kind of elastic nonwoven fabric needs to be pleated before welding to form uniform wavy pleats. The traditional pleating method is to use a pleating plate for pressing. During the pressing process, the formation of pleats will cause partial stretching of the nonwoven fabric, which is easy to cause damage to the nonwoven fabric.

[0003] Therefore, in view of the deficiencies in the prior art, the utility model discloses a device for making wavy folds of elastic non-woven fabric before welding to solve the above problems.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the utility model is to disclose a device for making wavy pleats on an elastic non-woven fabric before welding, which shrinks the non-woven fabric inward by using an arc roller, and then pleats the non-woven fabric by a meshing roller group with a gradually decreasing tooth pitch, thereby avoiding damage to the non-woven fabric due to local excessive stretching during the pleating process.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a device for making wavy pleats before welding of elastic non-woven fabric, comprising an arc roller assembly, an engaging roller group and a welding bottom roller arranged in sequence, wherein:

[0007] The arc roller assembly includes two mounting seats, an arc shaft is arranged between the two mounting seats, a roller assembly is sleeved on the arc shaft, and the roller assembly includes a middle roller and reverse-threaded rollers and forward-threaded rollers located on both sides of the middle roller. The reverse-threaded rollers and forward-threaded rollers are used to gradually retract the non-woven fabric inward, and the curvature of the arc shaft is used to make the non-woven fabric material reach a state of being tight in the middle and loose on both sides, in preparation for subsequent pleating.

[0008] The meshing roller group is composed of two upper and lower meshing toothed rods. The number of meshing roller groups is two or more. The pitch of the toothed rods in the meshing roller group decreases step by step as the process progresses. The pleat density is increased step by step through multiple meshing roller groups, thereby reducing the local tension on the non-woven material when pleating, and avoiding damage to the non-woven material.

[0009] The welding bottom roller is provided with evenly arranged grooves to position the pleated non-woven fabric and improve the accuracy and quality of subsequent composite welding.

[0010] The preferred technical solution is that the intermediate roller, the reverse thread roller and the forward thread roller are all connected to the arc shaft through bearings, thereby reducing the resistance encountered by the intermediate roller, the reverse thread roller and the forward thread roller when rotating.

[0011] The preferred technical solution is that the two intermeshing gear rods in the intermeshing roller group can be adjusted up and down in the vertical direction, so as to adjust the gap between the two intermeshing gear rods according to the thickness of the non-woven fabric, and also adjust the pleating density of the non-woven fabric by controlling the number of intermeshing roller groups used.

[0012] The preferred technical solution is: a guide roller is provided on the front side of the arc roller assembly, the meshing roller group and the welding bottom roller arranged in sequence, the guide roller and the adjacent components are not in the same horizontal plane, the vertical height of the guide roller can be adjusted, and the tension of the non-woven fabric is controlled by the height-adjustable guide roller.

[0013] The preferred technical solution is: there are three meshing roller groups, and guide rollers are arranged at the front sides of the three meshing roller groups.

[0014] The preferred technical solution is: a traction motor is provided on the side of the reverse-thread roller and the forward-thread roller away from the middle roller, and the rotation speed of the reverse-thread roller and the forward-thread roller is controlled by the motor, thereby controlling the shrinkage of the non-intrusive fabric.

[0015] Due to the application of the above technical solution, the device for making wavy folds before welding of elastic non-woven fabric of the utility model has the following advantages:

[0016] (1) Using an arc-shaped roller assembly with threads at both ends to shrink the width of the non-woven fabric before pleating, the non-woven fabric material is tight in the middle and loose on both sides, avoiding excessive tension on the non-woven fabric part during the subsequent pleating process;

[0017] (2) By cooperating with multiple groups of meshing rollers, the wrinkle density of the non-woven fabric is gradually increased, thereby further reducing the local tension on the non-woven fabric during pleating and avoiding the stacking of the non-woven fabric during pleating;

[0018] (3) Add evenly distributed grooves on the welding bottom roller to position the pleated non-woven fabric and improve the accuracy of subsequent composite welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a device for making wavy folds of elastic nonwoven fabric before welding according to the utility model;

[0020] Figure 2It is a top view of a device for making wavy folds of elastic non-woven fabric before welding according to the utility model.

[0021] In the above drawings, 1. arc roller assembly; 11. mounting seat; 12. arc shaft; 13. roller assembly; 13a. intermediate roller; 13b. reverse thread roller; 13c. forward thread roller; 14. traction motor; 2. meshing roller group; 21. gear rod; 3. welding bottom roller; 31. groove; 4. guide roller; 5. non-woven fabric. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] like Figure 1 As shown, the utility model discloses a device for making wavy pleats before welding of elastic non-woven fabric, comprising an arc roller assembly 1, an intermeshing roller group 2 and a welding bottom roller 3 arranged in sequence, and a guide roller 4 is arranged on the front side of the arc roller assembly 1, the intermeshing roller group 2 and the welding bottom roller 3. The guide roller 4 and the adjacent components are not in the same horizontal plane, and the vertical height of the guide roller 4 can be adjusted. The main components of the utility model are described in detail below:

[0025] like Figure 1 and Figure 2As shown, the arc roller assembly 1 includes two mounting seats 11, an arc shaft 12 is arranged between the two mounting seats 11, a roller assembly 13 is sleeved on the arc shaft 12, and the roller assembly 13 includes an intermediate roller 13a and reverse-threaded rollers 13b and forward-threaded rollers 13c located on both sides of the intermediate roller 13a, the intermediate roller 13a, the reverse-threaded rollers 13b and the forward-threaded rollers 13c are all connected to the arc shaft 12 through bearings, and a traction motor 14 is provided on the reverse-threaded rollers 13b and the forward-threaded rollers 13c away from the intermediate roller 13a.

[0026] like Figure 1 and Figure 2 As shown, the meshing roller group 2 consists of two upper and lower meshing gear rods 21, and the two meshing gear rods 21 can be adjusted up and down in the vertical direction. There are three meshing roller groups 2, and the tooth pitch of the gear rods 21 in the three meshing roller groups 2 decreases step by step as the process progresses.

[0027] like Figure 1 and Figure 2 As shown, the welding bottom roller 3 is provided with evenly arranged grooves 31 .

[0028] refer to Figure 1 and Figure 2 As shown, when in use, the non-woven fabric 5 enters the arc roller assembly 1 after the tension is adjusted by the guide roller 4, and the traction motor 14 at the arc roller assembly 1 drives the reverse thread roller 13b and the forward thread roller 13c to rotate, and the threads are used to push the two sides of the non-woven fabric 5 toward the middle roller 13a, so that the width of the non-woven fabric 5 is reduced, and finally the non-woven fabric passing through the arc roller assembly 1 becomes tight in the middle and loose on both sides. The non-woven fabric 5 with reduced width enters the meshing roller group 2 after the tension is adjusted, and the non-woven fabric 5 is pressed into uniform wrinkles through the meshing of the upper and lower tooth rods 21. The wrinkle density on the non-woven fabric 5 is gradually increased through the three groups of meshing roller groups 2 with gradually decreasing tooth pitches, and finally the non-woven fabric 5 with the required wrinkle density is obtained, and the tension is adjusted again and enters the welding bottom roller 3 for positioning welding through the grooves 31.

[0029] To sum up, the utility model is a device for making wavy pleats of elastic non-woven fabric before welding, which squeezes the non-woven fabric before pleating toward the center through an arc-shaped roller assembly with threads at both ends, so that the non-woven fabric material forms a state of being tight in the middle and loose on both sides, so that in the subsequent pleating operation, the non-woven fabric leaves a margin for pleat forming, thereby avoiding excessive force on the non-woven fabric part during the pleat pressing process, and adopts a plurality of groups of meshing roller groups to cooperate front and back to gradually increase the pleat density of the non-woven fabric, thereby reducing the pulling force on the non-woven fabric during a single pleating process and avoiding the non-woven fabric from stacking during the pleating process, and positioning the pleats of the non-woven fabric after pleating by adding evenly arranged grooves on the welding bottom roller, thereby improving the accuracy of subsequent composite welding.

[0030] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A device for making wavy folds of elastic nonwoven fabric before welding, Features: It comprises an arc roller assembly (1), an engaging roller group (2) and a welding bottom roller (3) which are arranged in sequence, wherein: The arc-shaped roller assembly (1) comprises two mounting seats (11), an arc-shaped shaft (12) is arranged between the two mounting seats (11), a roller assembly (13) is sleeved on the arc-shaped shaft (12), and the roller assembly (13) comprises a middle roller (13a) and a reverse-thread roller (13b) and a forward-thread roller (13c) located on both sides of the middle roller (13a); The meshing roller group (2) is composed of two upper and lower gear rods (21) meshing with each other, the number of the meshing roller groups (2) is two or more, and the tooth pitch of the gear rods (21) in the meshing roller group (2) decreases step by step as the process progresses; The welding bottom roller (3) is provided with evenly arranged concave patterns (31).

2. The device for making wavy folds of elastic nonwoven fabric before welding according to claim 1, Features: The intermediate roller (13a), the reverse-thread roller (13b) and the forward-thread roller (13c) are all connected to the arc-shaped shaft (12) via bearings.

3. The device for making wavy folds of elastic nonwoven fabric before welding according to claim 1, Features: The two mutually meshing toothed rods (21) in the meshing roller set (2) can both be adjusted up and down in the vertical direction.

4. The device for making wavy folds of elastic nonwoven fabric before welding according to claim 1, Features: The front sides of the arc roller assembly (1), meshing roller group (2) and welding bottom roller (3) arranged in sequence are all provided with a material guide roller (4), the material guide roller (4) and adjacent components are not located in the same horizontal plane, and the vertical height of the material guide roller (4) is adjustable.

5. The device for making wavy folds of elastic nonwoven fabric before welding according to claim 4, Features: The number of the meshing roller groups (2) is three, and the front sides of the three meshing roller groups (2) are all provided with material guide rollers (4).

6. The device for making wavy folds of elastic nonwoven fabric before welding according to claim 1, Features: The reverse-thread roller (13b) and the forward-thread roller (13c) are both provided with a traction motor (14) on the side away from the middle roller (13a).

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