阅读说明：本技术 一种内衣超声波粘合方法及粘合机 (Underwear ultrasonic bonding method and bonding machine ) 是由 林燕花 蓝双文 卓俊杰 陆宇立 许志敏 张星 陈庆堂 林振衡 于 2020-12-22 设计创作，主要内容包括：本发明公开了一种内衣超声波粘合方法及粘合机,其中,方法包括：将双层原布料运输至第一工作台,预拉所述原布料并搬运第一玻璃板压制所述双层原布料；对原布料按照预设形状进行激光切割,获得第一布料；其中,所述第一玻璃板避开所述预设形状且位于所述预设形状的内部；移除所述第一玻璃板；获得第一工作台上第一布料的第一布料面积及第一布料在第一工作台上的第一位置；响应于第一布料面积以及第一位置,确定第一布料的至少一个粘合位置；获得第一布料的材质和第一布料的厚度；响应于第一布料的材质和第一布料的厚度,确定焊接头的第一振动频率；控制焊接头以第一振动频率在粘合位置对第一布料进行超声波粘合。本发明可以取代传统的胶水粘合技术,制造更加健康、粘合更加牢固的内衣。(The invention discloses an underwear ultrasonic bonding method and a bonding machine, wherein the method comprises the following steps: conveying the double-layer original cloth to a first workbench, pre-stretching the original cloth, and conveying a first glass plate to press the double-layer original cloth; carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned inside the preset shape; removing the first glass sheet; obtaining a first cloth area of a first cloth on a first workbench and a first position of the first cloth on the first workbench; determining at least one bonding location of the first fabric in response to the first fabric area and the first location; obtaining the material and the thickness of the first fabric; determining a first vibration frequency of the welding head in response to the material of the first cloth and the thickness of the first cloth; and controlling a welding head to perform ultrasonic bonding on the first cloth at the bonding position at a first vibration frequency. The invention can replace the traditional glue bonding technology to manufacture the underwear which is healthier and has firmer bonding.)

1. An ultrasonic undergarment bonding method characterized in that said method comprises:

conveying the double-layer original cloth to a first workbench, pre-stretching the original cloth, and conveying a first glass plate to press the double-layer original cloth;

carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned inside the preset shape;

removing the first glass sheet;

obtaining a first cloth area of the first cloth on the first workbench and a first position of the first cloth on the first workbench;

determining at least one bonding location of the first fabric in response to the first fabric area and the first location;

obtaining the material of the first fabric and the thickness of the first fabric;

determining a first vibration frequency of a welding head in response to the material of the first cloth and the thickness of the first cloth;

and controlling the welding head to perform ultrasonic bonding on the first cloth at the bonding position at the first vibration frequency.

2. The method of claim 1, wherein said obtaining a first fabric area of said first fabric on said first table and a first position of said first fabric on said first table comprises:

obtaining a top view image of the first fabric on the first workbench;

identifying the first fabric in the overhead image and obtaining the first position of the first fabric on the first workbench;

obtaining the area ratio of the first cloth to the first workbench;

obtaining the first cloth area in response to the area ratio and the area of the first table.

3. The method of claim 1, wherein obtaining the material of the first fabric and the thickness of the first fabric comprises:

obtaining a side view image of a first fabric on the first workbench;

identifying the first fabric in the side view image and obtaining the thickness of the first fabric;

and obtaining the material of the first fabric according to the texture of the first fabric.

4. The method of claim 1, wherein said controlling said welding head to ultrasonically bond said first fabric at said bonding location at said first vibration frequency comprises:

adjusting the amplitude transformer to the first vibration frequency to drive the welding head to vibrate at the first frequency;

and moving the welding head to the bonding position to perform ultrasonic bonding on the first cloth.

5. The method of claim 1, wherein the bonding locations are evenly arranged on the first fabric.

6. An ultrasonic undergarment bonding machine, said bonding machine comprising: the device comprises a cutting module, an ultrasonic generator, a transducer, a horn, a welding head, a pneumatic device, a first workbench and a control module; the cutting module comprises a laser cutting head; the ultrasonic generator is connected with the transducer, the transducer is connected with the amplitude transformer, the amplitude transformer is connected with the welding head, and the laser cutting head and the welding head are arranged above the first workbench; the ultrasonic generator is used for converting commercial power into high-frequency alternating current; the transducer is used for converting the high-frequency alternating current into mechanical vibration; the amplitude transformer is used for adjusting the mechanical vibration frequency; the pneumatic device is used for respectively transporting the welding head and the laser cutting head; the first workbench is used for carrying a first cloth;

the control module includes: the device comprises a pressing unit, a removing unit, an image recognition unit, a bonding position determining unit, a material thickness obtaining unit, a vibration frequency obtaining unit and a bonding control unit;

the pressing unit is used for conveying the double-layer original cloth to a first workbench, pre-tensioning the original cloth and conveying a first glass plate to press the double-layer original cloth;

the cutting module is used for carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned inside the preset shape;

the removing unit is used for removing the first glass plate;

the image recognition unit is used for obtaining a first cloth area of the first cloth on the first workbench and a first position of the first cloth on the first workbench;

the bonding position determining unit is used for responding to the area of the first cloth and the first position and determining at least one bonding position of the first cloth;

the material thickness obtaining unit is used for obtaining the material of the first cloth and the thickness of the first cloth;

the vibration frequency obtaining unit is used for responding to the material of the first cloth and the thickness of the first cloth and determining a first vibration frequency of the welding head;

and the bonding control unit is used for controlling the welding head to perform ultrasonic bonding on the first cloth at the bonding position at the first vibration frequency.

7. The bonding machine of claim 6, wherein the image recognition unit comprises: the cloth fabric area obtaining device comprises a first image obtaining subunit, a first cloth identifying subunit, a position-to-area ratio obtaining subunit and an area obtaining subunit;

the first image acquisition subunit is configured to acquire a top view image of the first fabric on the first workbench;

the first fabric identifying subunit is configured to identify the first fabric in the overhead view image, and obtain the first position of the first fabric on the first workbench;

the position-to-area ratio obtaining subunit is configured to obtain an area ratio of the first fabric to the first workbench;

the area obtaining subunit is configured to obtain the first cloth area in response to the area ratio and the area of the first work table.

8. The bonding machine according to claim 6, wherein the material thickness obtaining unit includes: a second image acquisition subunit, a thickness acquisition subunit and a material acquisition subunit;

the second image acquisition subunit is used for acquiring a side view image of the first fabric on the first workbench;

the thickness obtaining subunit is configured to identify the first fabric in the side view image, and obtain a thickness of the first fabric;

and the material obtaining subunit is used for obtaining the material of the first cloth according to the texture of the first cloth.

9. The bonding machine of claim 6, wherein the bonding control unit comprises: an adjustment subunit and a mobile transport subunit;

the adjusting subunit is used for adjusting the amplitude transformer to the first vibration frequency so as to drive the welding head to vibrate at the first frequency;

and the moving and transporting subunit is used for moving the welding head to the bonding position to perform ultrasonic bonding on the first cloth.

10. The bonding machine of claim 6, wherein said bonding locations are evenly arranged on said first fabric.

Technical Field

The invention relates to the field of cloth processing, in particular to an underwear ultrasonic bonding method and a bonding machine.

Background

In recent years, with the improvement of the living standard of people, the attention on the personal health is more and more increased. The requirements of users on underwear are higher and higher, and the requirements are applied from the initial masking to the subsequent practical pursuit of even the slightest difference of the individual aesthetic feeling; the effects of body shaping, breast enlargement and the like are pursued for the underwear at the initial stage, and the requirement of 'healthy and comfortable' experience is increased on the basis. Therefore, the underwear is required to further meet the use requirements of users on health and nature on the basis of the original functions, and simultaneously meet the production efficiency requirements of the current social production.

The existing underwear is mostly made of double-layer cloth which is bonded by glue. However, the glue used for bonding the underwear often contains chemical substances harmful to human skin, and can pose certain threat to human health.

Disclosure of Invention

In view of some of the above-mentioned drawbacks of the prior art, the present invention provides an ultrasonic underwear bonding method and an underwear bonding machine, which are designed to replace the conventional glue bonding technique to produce healthier underwear.

Accordingly, in a first aspect of the present invention, there is disclosed a method of ultrasonic bonding of undergarments, said method comprising:

conveying the double-layer original cloth to a first workbench, pre-stretching the original cloth, and conveying a first glass plate to press the double-layer original cloth;

carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned inside the preset shape;

removing the first glass sheet;

obtaining a first cloth area of the first cloth on the first workbench and a first position of the first cloth on the first workbench;

determining at least one bonding location of the first fabric in response to the first fabric area and the first location;

obtaining the material of the first fabric and the thickness of the first fabric;

determining a first vibration frequency of a welding head in response to the material of the first cloth and the thickness of the first cloth;

and controlling the welding head to perform ultrasonic bonding on the first cloth at the bonding position at the first vibration frequency.

Optionally, the obtaining a first fabric area of the first fabric on the first workbench and a first position of the first fabric on the first workbench includes:

obtaining a top view image of the first fabric on the first workbench;

identifying the first fabric in the overhead image and obtaining the first position of the first fabric on the first workbench;

obtaining the area ratio of the first cloth to the first workbench;

obtaining the first cloth area in response to the area ratio and the area of the first table.

Optionally, the obtaining the material of the first fabric and the thickness of the first fabric includes:

obtaining a side view image of a first fabric on the first workbench;

identifying the first fabric in the side view image and obtaining the thickness of the first fabric;

and obtaining the material of the first fabric according to the texture of the first fabric.

Optionally, the controlling the welding head to perform ultrasonic bonding on the first fabric at the bonding position at the first vibration frequency includes:

adjusting the amplitude transformer to the first vibration frequency to drive the welding head to vibrate at the first frequency;

and moving the welding head to the bonding position to perform ultrasonic bonding on the first cloth.

Optionally, the bonding positions are uniformly arranged on the first fabric.

The invention discloses an underwear ultrasonic bonding machine in a second aspect, which comprises: the device comprises a cutting module, an ultrasonic generator, a transducer, a horn, a welding head, a pneumatic device, a first workbench and a control module; the cutting module comprises a laser cutting head; the ultrasonic generator is connected with the transducer, the transducer is connected with the amplitude transformer, the amplitude transformer is connected with the welding head, and the laser cutting head and the welding head are arranged above the first workbench; the ultrasonic generator is used for converting commercial power into high-frequency alternating current; the transducer is used for converting the high-frequency alternating current into mechanical vibration; the amplitude transformer is used for adjusting the mechanical vibration frequency; the pneumatic device is used for respectively transporting the welding head and the laser cutting head; the first workbench is used for carrying a first cloth;

the control module includes: the device comprises a pressing unit, a removing unit, an image recognition unit, a bonding position determining unit, a material thickness obtaining unit, a vibration frequency obtaining unit and a bonding control unit;

the pressing unit is used for conveying the double-layer original cloth to a first workbench, pre-tensioning the original cloth and conveying a first glass plate to press the double-layer original cloth;

the cutting module is used for carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned inside the preset shape;

the removing unit is used for removing the first glass plate;

the image recognition unit is used for obtaining a first cloth area of the first cloth on the first workbench and a first position of the first cloth on the first workbench;

the bonding position determining unit is used for responding to the area of the first cloth and the first position and determining at least one bonding position of the first cloth;

the material thickness obtaining unit is used for obtaining the material of the first cloth and the thickness of the first cloth;

the vibration frequency obtaining unit is used for responding to the material of the first cloth and the thickness of the first cloth and determining a first vibration frequency of the welding head;

and the bonding control unit is used for controlling the welding head to perform ultrasonic bonding on the first cloth at the bonding position at the first vibration frequency.

Optionally, the image recognition unit includes: the cloth fabric area obtaining device comprises a first image obtaining subunit, a first cloth identifying subunit, a position-to-area ratio obtaining subunit and an area obtaining subunit;

the first image acquisition subunit is configured to acquire a top view image of the first fabric on the first workbench;

the first fabric identifying subunit is configured to identify the first fabric in the overhead view image, and obtain the first position of the first fabric on the first workbench;

the position-to-area ratio obtaining subunit is configured to obtain an area ratio of the first fabric to the first workbench;

the area obtaining subunit is configured to obtain the first cloth area in response to the area ratio and the area of the first work table.

Optionally, the material thickness obtaining unit includes: a second image acquisition subunit, a thickness acquisition subunit and a material acquisition subunit;

the second image acquisition subunit is used for acquiring a side view image of the first fabric on the first workbench;

the thickness obtaining subunit is configured to identify the first fabric in the side view image, and obtain a thickness of the first fabric;

and the material obtaining subunit is used for obtaining the material of the first cloth according to the texture of the first cloth.

Optionally, the adhesion control unit includes: an adjustment subunit and a mobile transport subunit;

the adjusting subunit is used for adjusting the amplitude transformer to the first vibration frequency so as to drive the welding head to vibrate at the first frequency;

and the moving and transporting subunit is used for moving the welding head to the bonding position to perform ultrasonic bonding on the first cloth.

Optionally, the bonding machine further includes: a switching unit for switching the switching unit,

the bonding positions are uniformly distributed on the first fabric.

The invention has the beneficial effects that: 1. according to the invention, the laser cutting and the ultrasonic bonding are organically combined, the double-layer cloth does not move after the laser cutting is finished, the double-layer cloth does not need to be aligned by workers, and then the ultrasonic bonding is directly carried out, so that the efficiency and the alignment precision of the upper and lower welding of the double-layer cloth are effectively improved. 2. The invention adopts the transparent glass plate to press two layers of stretched and overlapped original cloth, thereby achieving the following effects: firstly, each layer of two layers of stretched original cloth is ensured not to be in accordance with a preset shape due to shrinkage and curling during cutting; and secondly, the problem that the shrinkage and curling degrees of the two layers of cloth are different when the two layers of cloth are cut due to the fact that the lower layer of original cloth has large bottom contact resistance is avoided, and the situation that the shapes of the two layers of cloth are different is avoided. And thirdly, the glass plate is isolated, so that the condition that fire is generated due to overhigh temperature when laser is used for cutting the original cloth is avoided, namely, when open fire occurs, the diffusion of combustion can be stopped by the glass plate. 3. According to the invention, the area and the position of the first cloth are obtained by adopting an image recognition method, the bonding position is determined according to the area and the position of the first cloth, the bonding firmness degree can be ensured in real time, and the phenomenon that the bonding firmness degree is reduced and the product quality is reduced due to different bonding positions because a batch of cloth is suddenly changed is avoided. 4. According to the invention, the material and the thickness of the first cloth are obtained by adopting an image recognition method, and the first vibration frequency of the welding head is determined according to the material and the thickness of the first cloth, so that the corresponding vibration frequency of each thickness of each cloth is ensured, and the phenomenon that the bonding trace is too heavy due to too high frequency or the bonding is not firm due to too low frequency is avoided. In conclusion, the invention adopts the glass plate pressing for laser cutting, combines the force image recognition technology and the ultrasonic welding technology, can replace the traditional glue bonding technology, and manufactures the underwear which is healthier and has firmer bonding.

Drawings

FIG. 1 is a schematic flow chart of a method for ultrasonic bonding of undergarments according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a central subassembly of an ultrasonic underwear bonder according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an underwear ultrasonic bonding machine subassembly according to an embodiment of the present invention.

Detailed Description

The invention discloses an underwear ultrasonic bonding method and an underwear ultrasonic bonding machine, and the technical details can be properly improved and realized by a person skilled in the art by taking the contents into consideration. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.

The double-layer cloth used in the existing underwear manufacture is mostly bonded by glue, and the glue with harmful substances threatens the human health. Glue bonding can also produce glue overflow conditions, resulting in low underwear product yield.

Accordingly, embodiments of the present invention provide a method of ultrasonic bonding of undergarments, as shown in fig. 1, comprising:

step S101: and conveying the double-layer original cloth to a first workbench, pre-stretching the original cloth and conveying a first glass plate to press the double-layer original cloth.

It should be noted that the double-layer original cloth is pre-stretched, so that the double-layer original cloth is straightened and tightened and aligned with each other, no gap is left, and no wrinkles are generated on the surface. The transparent glass plate is adopted because the transparent glass plate has good light transmission performance, so when laser cutting is carried out, laser can directly penetrate through the glass plate to cut the original cloth. The glass plate can adopt a hollow glass plate, and the welding head can enter the hollow part to bond the cloth.

The embodiment of the invention adopts the transparent glass plate to press two layers of stretched and overlapped original cloth, thereby achieving the following effects: firstly, each layer of two layers of stretched original cloth is ensured not to be in accordance with a preset shape due to shrinkage and curling during cutting; and secondly, the problem that the shrinkage and curling degrees of the two layers of cloth are different when the two layers of cloth are cut due to the fact that the lower layer of original cloth has large bottom contact resistance is avoided, and the situation that the shapes of the two layers of cloth are different is avoided. And thirdly, the condition that fire is generated due to overhigh temperature when the laser is adopted to cut the original cloth is avoided.

It is worth mentioning that the original cloth is tightened only by ensuring that the surface of the original cloth is smooth and has no wrinkles, and large-scale deformation of the original cloth is not required by large force, and the original cloth cannot shrink or curl after the glass plate rises after being pressed by the glass plate for a certain time.

Step S102: carrying out laser cutting on the original cloth according to a preset shape to obtain a first cloth; wherein, the first glass plate avoids the preset shape and is positioned in the preset shape.

Optionally, laser cutting is performed on the original cloth according to a preset shape by adopting a CO2 laser tube, so that the obtained first cloth is free from a burnt edge, is smooth and has a good edge folding effect.

It should be noted that the cloth types may include: one or more of cotton-type fabric, hemp-type fabric, silk-type fabric, wool-type fabric, and purified fiber fabric.

Step S103: the first glass plate is removed. .

Optionally, the first glass sheet is removed using a robotic arm.

It should be noted that the mechanical arm can accurately receive the lifting instruction after the cutting is completed, and accurately lift the first glass plate to the preset height, so that the first glass plate can be prevented from being shattered when being ultrasonically bonded.

Step S104: and obtaining a first cloth area of the first cloth on the first workbench and a first position of the first cloth on the first workbench.

Optionally, obtaining a first cloth area of a first cloth on a first workbench and a first position of the first cloth on the first workbench includes:

obtaining a top view image of the first cloth on the first workbench;

identifying a first fabric in the overlook image, and obtaining a first position of the first fabric on a first workbench;

obtaining the area ratio of the first cloth to the first workbench;

a first cloth area is obtained in response to the area ratio and the area of the first table.

It is to be understood that: the cutting-bonding of the fabric is performed for a fixed period of time. Set up first camera above first workstation, adopt first camera to shoot regularly, because time period is fixed, so can guarantee to shoot first cloth at every turn and all on first workstation. And acquiring a shot overlook image, and identifying the first fabric according to an image identification technology, so that the shape and the position of the first fabric can be acquired. According to the ratio of the area of the first workbench to the area of the first cloth in the overlooking image and the area of the first workbench, which are input in advance, the area of the first cloth can be accurately obtained.

It can also be understood that: the first camera and the image recognition work in real time until the image recognition technology recognizes that the image comprises the first cloth. And then obtaining the shape and position of the first fabric. According to the ratio of the area of the first workbench to the area of the first cloth in the overlooking image and the area of the first workbench, which are input in advance, the area of the first cloth can be accurately obtained.

It should be noted that the first fabric area may also be obtained directly by the preset cutting shape of the embodiment of the present invention, but in this case, only the fabric cut by the embodiment of the present invention may be bonded. Through the image recognition technology of the embodiment, the embodiment of the invention not only can bond the fabric cut by the embodiment of the invention, but also can bond the fabric cut in advance.

Step S105: at least one bonding location of the first fabric is determined in response to the first fabric area and the first location.

Optionally, the number of the bonding points corresponding to the area is calculated according to a preset algorithm, and then the bonding points are distributed on the first fabric according to the shape and the first position of the first fabric to form the bonding position.

The predetermined algorithm is obtained from the relationship between the size of the area and the number of the adhesive dots, and generally, the larger the area is, the larger the number of the adhesive dots is. The positions of the bonding positions with different shapes are different, and the bonding firmness is different. The embodiment of the invention can preset the scheme of the bonding position of most underwear cloth in the common shape, determine the shape and directly call the corresponding scheme. The embodiment of the invention can also preset a corresponding algorithm of the shape and the bonding position, and directly obtain the bonding position through calculation after obtaining the shape. The first position is obtained in order to avoid missticking of the position during bonding.

Step S106: and obtaining the material and the thickness of the first fabric.

Optionally, obtaining a material of the first fabric and a thickness of the first fabric includes:

obtaining a side view image of the first fabric on the first workbench;

identifying a first fabric in the side view image, and obtaining the thickness of the first fabric;

and obtaining the material of the first fabric according to the texture of the first fabric.

It is to be understood that: and arranging a second camera on the side surface of the first workbench, shooting in real time or at regular time, and obtaining a side view image of the first cloth on the first workbench. The first cloth is identified by adopting an image identification technology, and then the thickness of the first cloth is obtained according to a reference object set in advance, such as the thickness of a first workbench. Because the cross section textures of each cloth are different, the first cloth textures can be identified by utilizing image identification, so that the material of the first cloth is determined.

Step S107: and determining a first vibration frequency of the welding head in response to the material of the first cloth and the thickness of the first cloth.

It should be noted that the optimum bonding strength for each fabric and each thickness is different. The bonding effect can be optimized only by adopting the corresponding bonding strength aiming at different types and thicknesses of cloth. Otherwise, too high adhesion will result in too heavy and unsightly adhesive trace, and too low adhesion will result in poor adhesion. The bonding force is positively correlated with the vibration frequency of the welding head, and the larger the vibration frequency of the welding head is, the larger the bonding force is. Therefore, the optimum vibration frequency is selected according to the type and thickness of the cloth, so that the bonding effect can be optimized.

Step S108: and controlling a welding head to perform ultrasonic bonding on the first cloth at the bonding position at a first vibration frequency.

Optionally, controlling the welding head to perform ultrasonic bonding on the first fabric at the bonding position at the first vibration frequency includes:

adjusting the amplitude transformer to a first vibration frequency to drive the welding head to vibrate at the first frequency;

and moving the welding head to a bonding position to perform ultrasonic bonding on the first cloth.

It should be noted that, in ultrasonic bonding, the adjustment of the vibration frequency can be generally realized by changing the amplitude of the mechanical energy converted from the electrical energy by the transducer. Therefore, in the embodiment of the invention, the amplitude of the amplitude transformer is adjusted, and the vibration frequency is changed. The welding head is connected with the amplitude transformer, and the amplitude transformer drives the welding head to vibrate. The welding head is moved to the bonding position using pneumatic means.

Optionally, the bonding locations are evenly distributed on the first fabric.

It should be noted that the uniform arrangement of the bonding positions can make the overall bonding effect better and the product more beautiful.

In the embodiment of the invention, the laser cutting and the ultrasonic bonding are organically combined, the double-layer cloth does not move after the laser cutting is finished, the worker is not required to align the double-layer cloth, and then the ultrasonic bonding is directly carried out, so that the efficiency and the alignment precision of the upper and lower welding of the double-layer cloth are effectively improved. The embodiment of the invention adopts the transparent glass plate to press two layers of stretched and overlapped original cloth, thereby achieving the following effects: firstly, each layer of two layers of stretched original cloth is ensured not to be in accordance with a preset shape due to shrinkage and curling during cutting; and secondly, the problem that the shrinkage and curling degrees of the two layers of cloth are different when the two layers of cloth are cut due to the fact that the lower layer of original cloth has large bottom contact resistance is avoided, and the situation that the shapes of the two layers of cloth are different is avoided. And thirdly, the condition that fire is generated due to overhigh temperature when the laser is adopted to cut the original cloth is avoided. The embodiment of the invention adopts an image recognition method to obtain the area and the position of the first cloth, determines the bonding position according to the area and the position of the first cloth, can ensure the bonding firmness degree in real time, and can not cause the bonding firmness degree to be reduced and the product quality to be reduced because a batch of cloth is suddenly changed and the bonding positions are different. According to the embodiment of the invention, the material and the thickness of the first cloth are obtained by adopting an image recognition method, the first vibration frequency of the welding head is determined according to the material and the thickness of the first cloth, the corresponding vibration frequency of each thickness of each cloth is ensured, and the phenomenon that the bonding trace is too heavy due to too high frequency or the bonding is not firm due to too low frequency is avoided. In summary, the embodiment of the invention adopts the glass plate pressing for laser cutting, combines the force image recognition technology and the ultrasonic welding technology, can replace the traditional glue bonding technology, and manufactures the underwear which is healthier and is bonded more firmly.

According to the method, the embodiment of the invention also discloses an underwear ultrasonic bonding machine, which is shown in figure 2, wherein figure 2 shows the connection relationship of partial components in the embodiment of the invention; the method comprises the following steps: the device comprises a cutting module 202, an ultrasonic generator, a transducer, a horn, a welding head, a pneumatic device, a first workbench and a control module; the cutting module 202 includes a laser cutting head; the ultrasonic generator is connected with the transducer, the transducer is connected with the amplitude transformer, the amplitude transformer is connected with the welding head, and the laser cutting head and the welding head are arranged above the first workbench; the ultrasonic generator is used for converting commercial power into high-frequency alternating current; the energy converter is used for converting the high-frequency alternating current into mechanical vibration; the amplitude transformer is used for adjusting the mechanical vibration frequency; the pneumatic device is used for respectively transporting the welding head and the laser cutting head; the first workbench is used for carrying a first cloth;

in one embodiment, the ultrasonic generator, transducer, horn, and bond head may be connected as shown in fig. 3, where 301 is the ultrasonic generator, 302 is the transducer, 303 is the horn, and 304 is the bond head in fig. 3. Fig. 3 is a simplified illustration of the connection structure, for illustrative purposes only. In practical application, other components such as the pneumatic device, the workbench and the control module are not shown in fig. 3.

The control module includes: a pressing unit 201, a removing unit 203, an image recognizing unit 204, a bonding position determining unit 205, a material thickness obtaining unit 206, a vibration frequency obtaining unit 207, and a bonding control unit 208;

the pressing unit 201 is used for conveying the double-layer original cloth to a first workbench, pre-stretching the original cloth and conveying a first glass plate to press the double-layer original cloth;

the cutting module 202 is used for performing laser cutting on the original cloth according to a preset shape to obtain a first cloth; the first glass plate avoids the preset shape and is positioned in the preset shape;

a removing unit 203 for removing the first glass plate; (ii) a

The image recognition unit 204 is used for obtaining a first fabric area of a first fabric on a first workbench and a first position of the first fabric on the first workbench;

a bonding position determining unit 205 for determining at least one bonding position of the first fabric in response to the first fabric area and the first position;

a material thickness obtaining unit 206 for obtaining a material of the first fabric and a thickness of the first fabric;

a vibration frequency obtaining unit 207 for determining a first vibration frequency of the bonding head in response to the material of the first fabric and the thickness of the first fabric;

and the bonding control unit 208 is used for controlling the welding head to perform ultrasonic bonding on the first cloth at the bonding position at the first vibration frequency.

Optionally, the image recognition unit 204 includes: the cloth fabric area obtaining device comprises a first image obtaining subunit, a first cloth identifying subunit, a position-to-area ratio obtaining subunit and an area obtaining subunit;

the first image acquisition subunit is used for acquiring a top view image of the first fabric on the first workbench;

the first cloth identifying subunit is used for identifying a first cloth in the overlooking image and acquiring a first position of the first cloth on the first workbench;

the position-to-area ratio obtaining subunit is used for obtaining the area ratio of the first cloth to the first workbench;

and the area obtaining subunit is used for responding to the area ratio and the area of the first workbench to obtain the first cloth area.

Optionally, the material thickness obtaining unit 206 includes: a second image acquisition subunit, a thickness acquisition subunit and a material acquisition subunit;

the second image acquisition subunit is used for acquiring a side view image of the first fabric on the first workbench;

the thickness obtaining subunit is used for identifying the first fabric in the side-view image and obtaining the thickness of the first fabric;

and the material obtaining subunit is used for obtaining the material of the first cloth according to the texture of the first cloth.

Optionally, the adhesion control unit 208 includes: an adjustment subunit and a mobile transport subunit;

the adjusting subunit is used for adjusting the amplitude transformer to a first vibration frequency so as to drive the welding head to vibrate at the first frequency;

and the moving and transporting subunit is used for moving the welding head to the bonding position to perform ultrasonic bonding on the first cloth.

Optionally, the bonding positions are uniformly arranged on the first fabric.

It is worth mentioning that, in this embodiment, the glass plate can be picked up by a vacuum negative pressure chuck and then carried; typically, after the glass sheet is sucked and picked up by the vacuum negative pressure, the glass sheet is carried and moved by a carrying robot.

In the embodiment of the invention, the laser cutting and the ultrasonic bonding are organically combined, the double-layer cloth does not move after the laser cutting is finished, the worker is not required to align the double-layer cloth, and then the ultrasonic bonding is directly carried out, so that the efficiency and the alignment precision of the upper and lower welding of the double-layer cloth are effectively improved. The pressing unit 201 of the embodiment of the invention adopts the transparent glass plate to press two layers of tightly overlapped original cloth, thereby achieving the following effects: firstly, each layer of two layers of stretched original cloth is ensured not to be in accordance with a preset shape due to shrinkage and curling during cutting; and secondly, the problem that the shrinkage and curling degrees of the two layers of cloth are different when the two layers of cloth are cut due to the fact that the lower layer of original cloth has large bottom contact resistance is avoided, and the situation that the shapes of the two layers of cloth are different is avoided. And thirdly, the condition that fire is generated due to overhigh temperature when the laser is adopted to cut the original cloth is avoided. The embodiment of the invention adopts an image recognition method, adopts the image recognition unit 204 to obtain the area and the position of the first cloth, and the bonding position determining unit 205 determines the bonding position according to the area and the position of the first cloth, so that the bonding firmness can be ensured in real time, and the bonding firmness is prevented from being reduced and the product quality is prevented from being reduced due to different bonding positions caused by suddenly changing a batch of cloth. The embodiment of the invention adopts an image recognition method, the material thickness obtaining unit 206 is adopted to obtain the material and the thickness of the first cloth, and the vibration frequency obtaining unit 207 determines the first vibration frequency of the welding head according to the material and the thickness of the first cloth, so that each thickness of each cloth has the corresponding vibration frequency, and the phenomenon that the bonding trace is too heavy due to too high frequency or the bonding is not firm due to too low frequency is avoided. In summary, the embodiment of the invention adopts the glass plate pressing for laser cutting, combines the force image recognition technology and the ultrasonic welding technology, can replace the traditional glue bonding technology, and manufactures the underwear which is healthier and is bonded more firmly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.