CN214395823U

CN214395823U - Bonding device for non-woven fabric

Info

Publication number: CN214395823U
Application number: CN202120189535.3U
Authority: CN
Inventors: 倪水中; 毕学文
Original assignee: Suzhou Rude Textile Co ltd
Current assignee: Suzhou Rude Textile Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-10-15
Anticipated expiration: 2031-01-23

Abstract

The application relates to the field of non-woven fabrics, in particular to a bonding device for non-woven fabrics, which comprises an ultrasonic generator, a convex pattern roller, a guide roller and a power roller; the ultrasonic generator and the convex pattern roller are arranged up and down, and a gap for the non-woven fabric to pass through is formed; a microcapsule phase change material interlayer is arranged in the convex pattern roller; the guide roller is arranged at the front end station of the ultrasonic generator, and the power roller is arranged at the rear end station of the ultrasonic generator. This application utilizes phase change material's accuse temperature effect through the interbedded setting of microcapsule phase change material, can effectively control the temperature of burr roller, reduces the fluctuation of its temperature. Thereby reduced the difference of being heated of the non-woven fabrics product of bonding of different time quantums, improved the performance homogeneity of non-woven fabrics bonding product, and then improved the holistic quality of non-woven fabrics.

Description

Bonding device for non-woven fabric

Technical Field

The application relates to the field of non-woven fabrics, especially relate to a bonding device for non-woven fabrics.

Background

Nonwoven fabrics, also known as nonwoven fabrics, are constructed from oriented or random fibers; it is widely used because of its advantages of softness, light weight, good workability, recyclability, and low toxicity. In the application process, two or more nonwoven fabrics are often bonded to obtain a nonwoven fabric having a multilayer structure. Examples of the bonding method include hot roll bonding, hot air bonding, and ultrasonic bonding. Among them, ultrasonic bonding is attracting attention because of its high energy efficiency and wide application range.

Currently, in the related art, the ultrasonic bonding method is as follows: an ultrasonic generator is arranged above a plurality of non-woven fabrics which are overlapped together, and a roller with convex patterns is arranged below the non-woven fabrics. The molecules in the fiber are excited by ultrasonic waves, so that the internal microstructure of the fiber is rubbed, and heat is generated to increase the temperature of the fiber and generate melt bonding.

In view of the above-mentioned related art, the inventor believes that the temperature of the roller located below the non-woven fabric will rise along with the progress of work, so that the non-woven fabric bonded in different time periods is heated more differently, resulting in the difference of the performance of the non-woven fabric, and affecting the overall quality of the non-woven fabric.

SUMMERY OF THE UTILITY MODEL

In order to reduce the difference of being heated of the bonded non-woven fabrics product of different periods, improve the whole quality of non-woven fabrics product, this application provides a bonding device for non-woven fabrics.

The application provides a bonding device for non-woven fabrics adopts following technical scheme:

the bonding device for the non-woven fabric comprises an ultrasonic generator, a convex pattern roller, a guide roller and a power roller;

the ultrasonic generator and the convex pattern roller are arranged up and down, and a gap for the non-woven fabric to pass through is formed; a microcapsule phase change material interlayer is arranged in the convex pattern roller;

the guide roller is arranged at the front end station of the ultrasonic generator, and the power roller is arranged at the rear end station of the ultrasonic generator.

Through adopting above-mentioned technical scheme, when the temperature of burr roller is higher and exceed phase change material phase transition point, phase change material can take place the phase transition and absorb a large amount of heats. Thereby can control the temperature variation of burr roller, and then the fluctuation of being heated when having reduced the bonding of different periods of time non-woven fabrics has improved the bonded quality of non-woven fabrics. Meanwhile, the microcapsule is adopted to encapsulate the phase-change material, so that the phase-change material can be protected.

Optionally, the microcapsule phase change material interlayer is of a cylindrical structure with an annular radial section and is coaxially arranged with the relief roller.

By adopting the technical scheme, the temperature control of the phase-change material on each part of the relief pattern roller can be more balanced.

Optionally, the phase change material is a solid-liquid phase change material.

By adopting the technical scheme, after the temperature of the relief roller exceeds the phase change temperature of the phase change material, the solid-liquid phase change material can be changed into a liquid state from a solid state and absorb a large amount of heat. And the solid-liquid phase change material can be better used and controlled at normal temperature than other phase change materials.

Optionally, the guide roller and the power roller are both paired rollers, and the distance between the two rollers of the guide roller is adjustable, and the distance between the two rollers of the power roller is also adjustable.

Through adopting above-mentioned technical scheme, the guide roll can play the effect to non-woven fabrics direction and pre-compaction, and the power roller can provide power for the non-woven fabrics, and can cool off and further pressfitting to the non-woven fabrics after the bonding. The distance between the two rollers of the guide roller and the distance between the two rollers of the power roller are respectively adjustable, so that the pressure applied to the non-woven fabric can be adjusted, and the non-woven fabric bonding device is suitable for bonding of the non-woven fabrics with more sizes and requirements.

Optionally, the guide roller and the power roller correspond to a roller frame respectively;

the roller frame comprises two symmetrically arranged support plates, the inner side of each support plate is vertically connected with a movable seat and a fixed seat, and the surfaces of the movable seat and the fixed seat facing the inner side are provided with bearings;

the guide roller and the power roller are both arranged as follows: two ends of one roller are respectively connected with the fixed seats on the two supporting plates through bearings, and two ends of the other roller are respectively connected with the movable seats on the two supporting plates through bearings;

the movable seat is fixed on the waist-shaped through hole formed in the support plate through a screw or a bolt.

Through adopting above-mentioned technical scheme, realized that the distance between two running rollers of guide roll and the distance between two running rollers of power roller are adjustable respectively.

Optionally, the inner side of the support plate is further connected with a support plate and a fixing plate;

the supporting plate is positioned between the movable seat and the fixed seat, and a spring part is connected between the supporting plate and the movable seat;

the fixed plate is arranged on the movable seat and is provided with a thread through hole for penetrating the fixed plate up and down, a screw rod is connected with the thread through hole in a thread matching way, one end of the screw rod is abutted against the movable seat, and the other end of the screw rod penetrates through the thread through hole of the fixed plate to be connected with the rotating handle.

Through adopting above-mentioned technical scheme, make the regulation of the distance between two running rollers of guide roll and the distance between two running rollers of power roller more convenient and controllable.

Optionally, the ultrasonic wave generator, the convex line roller, the guide roller and the power roller are all arranged in the box body, and an air heater is arranged in the box body.

Through adopting above-mentioned technical scheme, hot-blast can preheat the non-woven fabrics to be favorable to the ultrasonic bonding.

Optionally, a hanging bracket is further arranged in the box body, the hanging bracket is hung on the top surface of the box body through a lead screw lifting structure, and the ultrasonic generator is fixedly connected below the hanging bracket.

By adopting the technical scheme, the distance between the ultrasonic generator and the convex pattern roller can be adjusted, so that the device can adapt to the bonding of non-woven fabrics with more thicknesses and technical requirements, and the application range of the device is expanded.

In summary, the present application includes at least one of the following beneficial technical effects:

1. this application utilizes phase change material's accuse temperature effect through the interbedded setting of microcapsule phase change material, can effectively control the temperature of burr roller, reduces the fluctuation of its temperature. Thereby reducing the heating difference when the non-woven fabrics are bonded at different time intervals, improving the uniformity of the performance of the non-woven fabric products and further improving the overall quality of the non-woven fabrics;

2. the distance between the ultrasonic generator and the convex pattern roller can be adjusted through the liftable arrangement of the ultrasonic generator, so that the device can be suitable for non-woven fabric bonding with more sizes and requirements, and the application range of the device is expanded;

3. the guide roller can play a role in guiding and prepressing the non-woven fabric, and can improve the ultrasonic bonding effect;

4. the arrangement of the power roller can not only provide driving force for the non-woven fabric, but also cool and further press the bonded non-woven fabric, so that the bonding quality of the non-woven fabric is improved;

5. distance between two rollers of guide roll and the distance between two rollers of power roller in this application all can be adjusted, are favorable to adapting to the non-woven fabrics bonding of multiple thickness and multiple application requirement.

Drawings

FIG. 1 is a schematic view showing the structure of a nonwoven fabric bonding apparatus according to an embodiment of the present invention (one side of the case is omitted).

FIG. 2 is a schematic radial cross-section of a relief drum according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a roller frame according to an embodiment of the present application.

Description of reference numerals: 1. an ultrasonic generator; 2. a relief roller; 21. a microcapsule phase change material interlayer; 3. a guide roller; 4. a power roller; 5. a hanger; 6. a roller frame; 61. a support plate; 611. a kidney-shaped through hole; 62. a movable bearing; 63. fixing the bearing; 64. a support plate; 65. a fixing plate; 66. a spring member; 67. a screw; 68. rotating the handle; 69. blocking edges; 7. a box body; 8. a hot air blower; 9. a nonwoven fabric.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1, the embodiment of the application discloses a bonding device for non-woven fabrics, which comprises a box body 7, an ultrasonic generator 1, a convex pattern roller 2, a guide roller 3, a power roller 4, a hanger 5 and a hot air blower 8, wherein the ultrasonic generator 1, the convex pattern roller 2, the guide roller 3, the power roller 4, the hanger 5 and the hot air blower 8 are arranged in the box body 7.

Referring to fig. 1, an ultrasonic generator 1 and a relief roller 2 are arranged up and down, and a gap for passing two layers of non-woven fabrics 9 needing to be compounded exists between the ultrasonic generator and the relief roller. The ultrasonic generator 1 excites the fiber molecules of the nonwoven fabric 9 by emitting ultrasonic waves, thereby generating friction between the microstructures inside the fibers. This friction generates heat to raise the temperature of the fibers, which in turn melts and bonds the two layers of nonwoven 9 to be combined. The arrangement of the relief roller 2 can effectively control the melting of the non-woven fabric 9. Semicircular bulges are uniformly distributed on the surface of the convex pattern roller 2.

Referring to fig. 1, a hanger 5 is hung on the inner side of the top surface of a box 7 through a screw rod lifting structure, and an ultrasonic generator 1 is fixedly connected to the bottom of the hanger 5. The distance between the ultrasonic generator 1 and the relief roller 2 can be adjusted by driving the screw lifting structure, so that the non-woven fabric 9 can be bonded with various thicknesses and requirements.

Referring to fig. 2, a microcapsule phase change material interlayer 21 is disposed inside the relief roller 2. The microcapsule phase change material interlayer 21 is of a cylindrical structure with an annular radial section and is coaxially arranged with the relief roller 2. The specific setting mode is as follows: coating a coating containing microcapsule phase change materials outside a normal roller; then a metal sleeve is sleeved outside and the end is fixed. The phase change material is selected from a solid-liquid phase change material, and in some embodiments, the phase change material is selected from octadecanol or paraffin. The phase change material has the functions of controlling the temperature and reducing the overheating of the relief roller 2. When the temperature of the relief roller 2 becomes higher and higher beyond the phase change point of the phase change material during long-term operation, the phase change material changes phase from a solid to a liquid and absorbs a large amount of heat. Can control burr roller 2's temperature like this, reduce burr roller 2's temperature fluctuation, and then the fluctuation of being heated when reducing non-woven fabrics 9 bonding improves non-woven fabrics 9 bonded quality. The microcapsule phase-change material is prepared by encapsulating the phase-change material by microcapsules, so that the leakage of the phase-change material after phase change into liquid is reduced, and unnecessary loss of the phase-change material is also reduced. The shell material of the microcapsule can adopt polyurethane or melamine resin and the like, and the microcapsule phase change material is prepared by adopting a conventional interfacial polymerization method or an in-situ polymerization method.

Referring to fig. 1, the guide roller 3 is a pair of rollers, is disposed at a front end station of the ultrasonic generator 1, and serves to guide the nonwoven fabric 9 so that it passes through a gap between the ultrasonic generator 1 and the relief roller. Meanwhile, the guide roller 3 also plays a role in prepressing the non-woven fabric 9 to be compounded, and is favorable for the bonding of the non-woven fabric 9 between the ultrasonic generator 1 and the relief roller 2.

Referring to fig. 1 and 3, the guide roller 3 has two rollers disposed in parallel up and down, and a distance between the two rollers is adjustable. Specifically, the guide roller 3 is mounted on a roller frame 6. This roller frame 6 is including two extension boards 61 that the symmetry set up, and every extension board 61 is rectangular shape structure, and vertical setting. The inner side of the support plate 61 (the side adjacent to the other support plate 61) is connected with a fixed plate 65, a movable seat 62, a spring element 66, a support plate 64 and a fixed seat 63 in sequence from top to bottom. Meanwhile, waist-shaped through holes 611 and threaded through holes are formed in the support plate 61 from top to bottom. One side of the movable seat 62 close to the support plate 61 is provided with a screw hole matched with the waist-shaped through hole 611, and the movable seat 62 and the support plate 61 can be fixed together through screws, so that the movable seat 62 is fixed on the support plate 61. Similarly, the fixing seat 63 has a screw hole matching with the threaded through hole, and the fixing seat 63 and the threaded through hole can be fixed together by screws, so that the fixing seat 63 is fixed on the support plate 61. In addition, the fixing plate 65 is also provided with a threaded through hole penetrating the fixing plate vertically, and a screw 67 penetrates the threaded through hole and is connected with the threaded through hole in a matching manner. One end of the screw 67 abuts against the top of the movable seat 62 (a screw hole may be formed in the top thereof so that the end of the screw 67 is screwed in), and the other end thereof passes through the screw through hole of the fixed plate 65 and is connected to the knob 68. The surfaces of the movable and fixed

seats

62, 63 facing the inside (i.e. the side close to the other support 61) are provided with bearings. In addition, flanges 69 are arranged on two sides of the support plate 61, and the movable seat 62 and the fixed seat 63 are clamped between the flanges to play a role in protection.

Referring to fig. 1 and 3, two ends of one roller of the guide roller 3 are respectively connected with the fixed seats 63 on the two support plates 61 through bearings, and two ends of the other roller are respectively connected with the movable seats 62 on the two support plates 61 through bearings. Therefore, when the distance between the two rollers needs to be adjusted, the screw connected to the kidney-shaped through hole 611 can be loosened, and the screw 67 rotates around the axial direction of the screw by rotating the rotating handle 68, so that the movable seat 62 is driven to move up and down, and the rollers connected to the movable seat are driven to move up and down. When the adjusting position is in place, the screw is screwed on the waist-shaped through hole 611 for fixing, so that the distance between the two rollers of the guide roller 3 is adjustable. Through the regulation of the distance of two running rollers of guide roll 3, can be fit for the bonding of the non-woven fabrics 9 of multiple thickness, also can exert different pressure to non-woven fabrics 9 to realize different bonding requirements. In addition, the spring member 66 is provided to always provide a supporting force to the movable seat 62.

Referring to fig. 1 and 3, a pair of power rollers 4 is arranged at a rear end station of the ultrasonic generator 1 and plays a role of providing motion power for the non-woven fabric 9. Meanwhile, the power roller 4 also plays a role in further pressing the two bonded non-woven fabrics 9 together so that the two non-woven fabrics are connected more tightly; and the power roller 4 can also cool and shape the non-woven fabric 9. Similarly to the guide roller 3, the power roller 4 has two rollers arranged in parallel up and down, and is also mounted on a roller stand 6. The roller frame 6 has the same structure as the roller frame 6 to which the guide roller 3 is attached. Therefore, the distance between the two rollers of the power roller 4 can be adjusted by rotating the rotating handle 68, so that the device is suitable for bonding the non-woven fabrics 9 with various thicknesses and various application requirements, and the application range of the device is expanded.

Referring to fig. 1, a plurality of air heaters 8 are suspended in the cabinet 7. Each hot air blower 8 is located above the non-ultrasonically bonded nonwoven 9 to preheat the nonwoven 9 for the subsequent ultrasonic bonding operation.

The implementation principle of the bonding device for non-woven fabrics in the embodiment of the application is as follows: two pieces of non-woven fabrics 9 to be bonded are overlapped together and are guided and pre-pressed by a guide roller 3 to be arranged between an ultrasonic generator 1 and a relief pattern roller 2 under the driving of a power roller 4; in this process, the hot air blower 8 blows hot air to the nonwoven fabric 9 to preheat it. After reaching the space between the ultrasonic generator 1 and the relief roller 2, the ultrasonic generator 1 generates ultrasonic waves to raise the temperature of the fibers of the nonwoven fabric 9, melt and bond them. And then cooling and further pressing at the power roller 4 to obtain a finished product.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A bonding device for nonwoven fabrics is characterized in that: comprises an ultrasonic generator (1), a convex pattern roller (2), a guide roller (3) and a power roller (4);

the ultrasonic generator (1) and the convex pattern roller (2) are arranged up and down, and a gap for the non-woven fabric (9) to pass through is formed; a microcapsule phase change material interlayer (21) is arranged in the relief roller (2);

the guide roller (3) is arranged at the front end station of the ultrasonic generator (1), and the power roller (4) is arranged at the rear end station of the ultrasonic generator (1).

2. The bonding apparatus for nonwoven fabric according to claim 1, characterized in that: the microcapsule phase change material interlayer (21) is of a cylindrical structure with an annular radial section and is coaxially arranged with the relief roller (2).

3. The bonding apparatus for nonwoven fabric according to claim 2, characterized in that: the phase change material is a solid-liquid phase change material.

4. The bonding apparatus for nonwoven fabric according to claim 1, characterized in that: the guide roller (3) and the power roller (4) are both paired rollers, the distance between the two rollers of the guide roller (3) is adjustable, and the distance between the two rollers of the power roller (4) is also adjustable.

5. The bonding apparatus for nonwoven fabric according to claim 4, characterized in that: the guide roller (3) and the power roller (4) respectively correspond to a roller frame (6);

the roller frame (6) comprises two symmetrically arranged support plates (61), the inner side of each support plate (61) is vertically connected with a movable seat (62) and a fixed seat (63), and the surfaces of the movable seat and the fixed seat facing the inner side are provided with bearings;

the guide roller (3) and the power roller (4) are both arranged as follows: two ends of one roller are respectively connected with the fixed seats (63) on the two support plates (61) through bearings, and two ends of the other roller are respectively connected with the movable seats (62) on the two support plates (61) through bearings;

the movable seat (62) is fixed on a waist-shaped through hole (611) formed in the support plate (61) through a screw or a bolt.

6. The bonding apparatus for nonwoven fabric according to claim 5, characterized in that: the inner side of the support plate (61) is also connected with a support plate (64) and a fixing plate (65);

the supporting plate (64) is positioned between the movable seat (62) and the fixed seat (63), and a spring part (66) is connected between the supporting plate (64) and the movable seat (62);

the fixed plate (65) is arranged on the movable seat (62) and is provided with a thread through hole for penetrating the upper part and the lower part of the fixed plate, a screw rod (67) is connected with the thread through hole in a thread matching way, one end of the screw rod (67) is abutted against the movable seat (62), and the other end of the screw rod passes through the thread through hole of the fixed plate (65) and is connected with the rotating handle (68).

7. The bonding apparatus for nonwoven fabric according to claim 1, characterized in that: still include box (7), supersonic generator (1), burr roller (2), guide roll (3) and power roller (4) all set up in box (7), just be provided with air heater (8) in box (7).

8. The bonding apparatus for nonwoven fabric according to claim 7, characterized in that: the ultrasonic generator is characterized in that a hanging bracket (5) is further arranged in the box body (7), the hanging bracket (5) is hung on the top surface of the box body (7) through a lead screw lifting structure, and the ultrasonic generator (1) is fixedly connected below the hanging bracket (5).