Non-woven fabric composite ultrasonic welding device

Abstract

The utility model relates to the technical field of non-woven fabric composite welding, and provides a non-woven fabric composite ultrasonic welding device which comprises a supporting frame, a first roller, a second roller, a bottom roller, protrusions, a rotating motor and a limiting piece. A movable strip, a movable air cylinder, a guide piece, a movable sliding rail, an electric sliding block and a welding piece; a limiting motor drives a limiting plate to rotate, so that when the limiting plate rotates, the side, provided with a notch, of the limiting plate is close to the overlapping position of the two layers of non-woven fabric, the limiting plate and the notch limit the to-be-welded portions of the two layers of non-woven fabric, the vibration frequency is reduced, the non-overlapping fabric shakes, and the welding quality of the non-woven fabric is improved. Therefore, the problem that the rubber bands in the non-overlapped fabrics are staggered and deviated before being welded is solved, so that the welding precision is improved, and the welding quality and efficiency are further improved.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven composite welding technology, and more specifically, it relates to a nonwoven composite ultrasonic welding device. Background Technology

[0002] Ultrasonic welding of nonwoven fabric composites is a process that uses ultrasonic vibration energy to combine nonwoven fabrics with other materials (such as films, PP, PE, etc.). This process is widely used in medical, hygiene, packaging, automotive interior and other fields, and has the advantages of high efficiency, environmental protection and energy saving.

[0003] Its welding principle is to convert electrical energy into high-frequency mechanical vibration through an ultrasonic generator, and then transmit the vibration to the surface of the material to be welded through the welding head; under the action of vibration, frictional heat is generated between the molecules on the material surface, causing the material to melt locally, thereby achieving the bonding or composite of the materials.

[0004] However, when existing nonwoven composite ultrasonic welding equipment welds two or more fabrics, the vibration frequency causes the non-overlapping fabrics to shake, resulting in misalignment and displacement of the elastic bands within the non-overlapping fabrics before welding, which affects the quality and efficiency of welding. To address this, a nonwoven composite ultrasonic welding device is proposed to improve the existing problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a non-woven fabric composite ultrasonic welding device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-woven fabric composite ultrasonic welding device, comprising a support frame, a first roller disposed within the support frame, a second roller disposed on one side of the first roller, a bottom roller disposed between the first roller and the second roller, protrusions uniformly disposed on the outer wall of the bottom roller, a rotary motor disposed at one end of the bottom roller, and a limiting component disposed on one side of the bottom roller; a movable strip disposed within the support frame, movable cylinders disposed at both ends of the movable strip, guide components disposed at both ends of the bottom of the movable strip, a movable slide rail disposed at the top of the movable strip, an electric slider uniformly slidably connected to the movable slide rail, and a welding component disposed on the electric slider.

[0007] The present invention is further configured such that: both ends of the first roller, the second roller and the bottom roller are connected to the side wall of the support frame through bearing seats, and the output end of the rotary motor passes through the side wall of the support frame and is connected to the bottom roller.

[0008] The present invention is further configured such that: the limiting component includes a limiting motor and a limiting plate disposed at the output end of the limiting motor; the output end of the limiting motor passes through the side wall of the support frame and is connected to the limiting plate, and the end of the limiting plate away from the limiting motor is rotatably connected to the side wall of the support frame.

[0009] The present invention is further configured such that: the limiting plate is arc-shaped, and a cut is provided on one side of the limiting plate.

[0010] The present invention is further configured such that: the end of the movable cylinder away from the movable bar is connected to the side wall of the support frame; the guide includes a fixed plate, a guide rail disposed on the top of the fixed plate, and a guide block sliding on the guide rail; one side of the fixed plate is connected to the side wall of the support frame, and the side wall of the guide block away from the guide rail is connected to the bottom corresponding to the movable bar.

[0011] The present invention is further configured such that: the welding component includes a movable plate, an ultrasonic generator disposed on the top of the movable plate, and a welding head disposed at one end of the ultrasonic generator; the bottom of the movable plate is connected to the top of the electric slider.

[0012] In summary, this application includes at least one of the following beneficial technical effects: by driving the limiting plate to rotate via the limiting motor, the limiting plate will bring the side with the cut closer to the overlapping point of the two layers of non-woven fabric when it rotates, so that the limiting plate and the cut limit the part of the two layers of non-woven fabric that is about to be welded, reducing the vibration frequency that would cause the non-overlapping fabric to shake, thus causing the elastic band in the non-overlapping fabric to be misaligned before welding, thereby improving the welding accuracy, and thus improving the welding quality and efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the nonwoven fabric composite ultrasonic welding device of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the first roller and the second roller in this utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the limiting component in this utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the movable bar and the movable cylinder in this utility model;

[0017] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0018] Figure 6 for Figure 4Enlarged view of point B in the middle;

[0019] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. First roller; 3. Second roller; 4. Bottom roller; 41. Protrusion; 42. Rotary motor; 5. Limiting component; 51. Limiting motor; 52. Limiting plate; 53. Cutout; 6. Movable strip; 7. Movable cylinder; 8. Guide component; 81. Fixed plate; 82. Guide rail; 83. Guide block; 9. Movable slide rail; 91. Electric slider; 10. Welded part; 101. Movable plate; 102. Ultrasonic generator; 103. Welding head. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] Please see Figures 1-6 The present invention provides the following technical solution:

[0023] Example 1, see Figures 1-6 A nonwoven fabric composite ultrasonic welding device includes a support frame 1, a first roller 2 is arranged inside the support frame 1, a second roller 3 is arranged on one side of the first roller 2, a bottom roller 4 is arranged between the first roller 2 and the second roller 3, protrusions 41 are evenly arranged on the outer wall of the bottom roller 4, a rotary motor 42 is arranged at one end of the bottom roller 4, and a limiting member 5 is also arranged on one side of the bottom roller 4.

[0024] The support frame 1 is also equipped with a movable bar 6, with movable cylinders 7 at both ends of the movable bar 6, guide members 8 at both ends of the bottom of the movable bar 6, and a movable slide rail 9 at the top of the movable bar 6. An electric slider 91 is evenly connected to the movable slide rail 9, and a welded part 10 is provided on the electric slider 91.

[0025] The welding component 10 includes a movable plate 101, an ultrasonic generator 102 disposed on the top of the movable plate 101, and a welding head 103 disposed at one end of the ultrasonic generator 102; the bottom of the movable plate 101 is connected to the top of the electric slider 91.

[0026] See Figures 1-6 Furthermore, both ends of the first roller 2, the second roller 3, and the bottom roller 4 are connected to the side wall of the support frame 1 through bearing seats, and the output end of the rotary motor 42 passes through the side wall of the support frame 1 and is connected to the bottom roller 4.

[0027] In this process, one layer of nonwoven fabric is wrapped and bonded to the surface of the first roller 2, and the other layer of nonwoven fabric is wrapped and bonded to the surface of the second roller 3. Then, the two layers of nonwoven fabric are simultaneously conveyed to one side of the bottom roller 4 and close to the surface of the bottom roller 4. During this process, on the one hand, the rotary motor 42 is started, driving the bottom roller 4 to rotate, thereby causing several protrusions 41 to rotate synchronously. On the other hand, the movable cylinder 7 is also started, and its telescopic end pulls the movable strip 6 close to the two layers of nonwoven fabric. Thus, by starting the ultrasonic generator 102, electrical energy is converted into high-frequency mechanical vibration, which causes the welding head 103 to transmit the vibration to the overlapping part of the two layers of nonwoven fabric. Under the action of vibration, frictional heat is generated between the molecules on the surface of the two layers of nonwoven fabric, causing the two layers of nonwoven fabric to partially melt, thereby achieving the purpose of composite of the two layers of nonwoven fabric. At the same time, the welding head 103 also squeezes the two layers of nonwoven fabric to fit against the bottom roller 4 and to contact and weld with the protrusions 41.

[0028] Through the design of the electric slider 91 and the movable slide rail 9, when the electric slider 91 is started, it can drive the corresponding welding head 103 to slide on the movable slide rail 9, so that the welding heads 103 move closer or further apart, thus adapting to welding at various distances.

[0029] See Figures 1-6 Furthermore, the limiting component 5 includes a limiting motor 51 and a limiting plate 52 disposed at the output end of the limiting motor 51; the output end of the limiting motor 51 passes through the side wall of the support frame 1 and is connected to the limiting plate 52, and the end of the limiting plate 52 away from the limiting motor 51 is rotatably connected to the side wall of the support frame 1; the limiting plate 52 is arc-shaped, and a cutout 53 is provided on one side of the limiting plate 52.

[0030] The limit motor 51 starts, driving the limit plate 52 to rotate. Since the limit plate 52 is arc-shaped, a notch 53 is opened on one side of the limit plate 52. Therefore, when the limit plate 52 rotates, it will bring the side with the notch 53 close to the overlapping point of the two layers of non-woven fabric. This allows the limit plate 52 and the notch 53 to limit the part of the two layers of non-woven fabric that is about to be welded, reducing the frequency of vibration that would cause the non-overlapping fabric to shake. This would cause the elastic band in the non-overlapping fabric to be misaligned before welding, thereby improving the welding accuracy and thus improving the welding quality and efficiency.

[0031] See Figures 1-6 Furthermore, the end of the movable cylinder 7 away from the movable bar 6 is connected to the side wall of the support frame 1. The guide member 8 includes a fixed plate 81, a guide rail 82 disposed on the top of the fixed plate 81, and a guide block 83 sliding on the guide rail 82. One side of the fixed plate 81 is connected to the side wall of the support frame 1, and the side wall of the guide block 83 away from the guide rail 82 is connected to the bottom of the movable bar 6.

[0032] When the movable cylinder 7 is activated, its telescopic end pulls the movable strip 6 closer to the two layers of non-woven fabric, which also causes the guide block 83 to slide on the guide rail 82, thereby achieving the purpose of guidance.

[0033] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A nonwoven fabric composite ultrasonic welding device, characterized in that: include, A support frame (1) is provided with a first roller (2) inside the support frame (1), a second roller (3) is provided on one side of the first roller (2), a bottom roller (4) is provided between the first roller (2) and the second roller (3), protrusions (41) are evenly provided on the outer wall of the bottom roller (4), a rotary motor (42) is provided at one end of the bottom roller (4), and a limiting member (5) is also provided on one side of the bottom roller (4). The support frame (1) is also provided with a movable strip (6), and movable cylinders (7) are provided at both ends of the movable strip (6). Guide members (8) are also provided at both ends of the bottom of the movable strip (6). Movable slide rail (9) is provided at the top of the movable strip (6). Electric slider (91) is evenly connected to the movable slide rail (9). Welded parts (10) are provided on the electric slider (91).

2. The nonwoven composite ultrasonic welding device according to claim 1, characterized in that: The first roller (2), the second roller (3) and the bottom roller (4) are all connected to the side wall of the support frame (1) through bearing seats at both ends. The output end of the rotary motor (42) passes through the side wall of the support frame (1) and is connected to the bottom roller (4).

3. The nonwoven composite ultrasonic welding device according to claim 1, characterized in that: The limiting component (5) includes a limiting motor (51) and a limiting plate (52) disposed at the output end of the limiting motor (51); the output end of the limiting motor (51) passes through the side wall of the support frame (1) and is connected to the limiting plate (52); the end of the limiting plate (52) away from the limiting motor (51) is rotatably connected to the side wall of the support frame (1).

4. The nonwoven fabric composite ultrasonic welding device according to claim 3, characterized in that: The limiting plate (52) is arc-shaped, and a cut (53) is provided on one side of the limiting plate (52).

5. The nonwoven fabric composite ultrasonic welding device according to claim 1, characterized in that: The end of the movable cylinder (7) away from the movable bar (6) is connected to the side wall of the support frame (1). The guide (8) includes a fixed plate (81), a guide rail (82) set on the top of the fixed plate (81), and a guide block (83) sliding on the guide rail (82). One side of the fixed plate (81) is connected to the side wall of the support frame (1), and the side wall of the guide block (83) away from the guide rail (82) is connected to the bottom of the movable bar (6).

6. The nonwoven fabric composite ultrasonic welding device according to claim 1, characterized in that: The welded component (10) includes a movable plate (101), an ultrasonic generator (102) disposed on the top of the movable plate (101), and a welding head (103) disposed at one end of the ultrasonic generator (102); the bottom of the movable plate (101) is connected to the top of the electric slider (91).

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