Fabric dynamic and static draping characteristic acquisition device comprising double rotation systems

Abstract

The invention relates to a fabric dynamic and static draping characteristic acquisition device comprising a double-rotation system. The device comprises an autorotation supporting disc capable of providing support for a circular overhanging fabric sample, a motion motor connected with the autorotation supporting disc and driving the autorotation supporting disc to rotate, a revolution supporting disc fixed together with the motion motor, and a fixed motor for providing power for the revolution supporting disc, the camera is used for collecting dynamic and static suspension results of the fabric. Rotation of the revolution supporting disc is called revolution and can be used for applying resultant force to the draping fabric, and the resultant force comes from wind force and centrifugal force borne by the draping fabric in the moving process. The resultant force enables the deformation of partial areas in the draping fabric to be intensified and the deformation of partial areas to be weakened. Rotation of the autorotation supporting disc is called autorotation, and the stressed position of the fabric in the overhanging process can be continuously changed. The device for collecting the dynamic and static draping characteristics of the fabric is more beneficial to comprehensively showing the draping performance of the circular fabric in 360 degrees.

Description

Technical Field

[0001] The invention relates to a device for collecting dynamic and static draping characteristics of fabrics, which comprises a double rotating system. The device can effectively collect dynamic and static draping characteristics of fabrics. Background Art

[0002] The drape property of fabric is one of the effective forms of expressing the mechanical properties and structural parameters of fabric. Studying the drape property of fabric can provide reference for fabric design and clothing design. The primary task of studying the drape property of fabric is to obtain the drape results of fabric. Therefore, the development of fabric drape meter is very important.

[0003] Most traditional fabric drape meters collect static drape images or two-dimensional profiles of fabrics, and then use several scalar indicators to characterize the drape properties of fabrics based on the drape images or two-dimensional profiles of fabrics. However, in practical applications, fabrics are often worn on dynamic human bodies after being made into clothing. Therefore, using a fabric drape meter to test the dynamic drape properties of fabrics is a more scientific characterization method.

[0004] There are several reports on the dynamic drape of fabrics. These reports use the rotation of the draped fabric around the fabric centroid as a dynamic strategy. In this method, the centrifugal force applied to the circular fabric by the drape meter is used to uniformly deform the fabric. In this method, the same centrifugal force is applied to the fabric in all directions during the rotation of the fabric, and then several scalar indicators are counted. This method cannot apply different external forces to the same fabric sample at the same time when testing dynamic drape, so it cannot cause different deformations in each area of ​​the circular fabric; and the rotation rate of the fabric in this method is relatively high, which makes it difficult to distinguish different types of fabrics. Summary of the invention

[0005] In order to more scientifically and effectively record and characterize the dynamic and static drape characteristics of a fabric, the present invention provides a device for collecting dynamic and static drape characteristics of a fabric comprising a dual rotation system.

[0006] The present invention comprises a self-rotating support disc and a motion motor for providing rotational power to the self-rotating support disc, a revolving support disc fixed to the motion motor, a fixed motor for providing power to the revolving support disc, and a camera for collecting dynamic and static draping results of fabric; The self-rotating support disc is used to support the draping of a circular fabric sample; the draping characteristics of the fabric sample are displayed by combining self-rotation and revolution during the fabric draping process.

[0007] The beneficial effects of the present invention are as follows: the present invention can use a dual-rotation system to collect dynamic and static draping results of a drape fabric under the coordinated conditions of rotation and revolution. When the drape fabric revolves, it can ensure that the drape fabric is subjected to a uniform resultant force during the draping process. The deformation of some areas of the drape fabric is aggravated under the action of external forces, and the deformation of some areas is weakened under the action of external forces. The rotation of the drape fabric can ensure that each area of ​​the drape fabric can show a variety of deformation conditions. The dynamic and static drape feature acquisition device designed by the present invention is more conducive to the 360-degree comprehensive display of the dynamic drape performance of circular fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1a It is a schematic diagram of the structure of a device for collecting dynamic and static drape characteristics of fabrics including a dual rotation system; Figure 1b for Figure 1a A top view of Figure 2 This is an example diagram of the deformation of the draped fabric under the combined force caused by the rotation of the orbiting support disk; Figure 3 This is a simulation effect of a device for collecting dynamic and static draping characteristics of fabrics that includes a dual rotation system. DETAILED DESCRIPTION

[0009] The preferred embodiments of the present invention are further described below in conjunction with the accompanying drawings: like Figure 1a and Figure 1b As shown, the present application provides a working schematic diagram of a device for collecting dynamic and static draping characteristics of fabrics including a dual rotation system; it includes a self-rotating support disc 1 that can rotate, a motion motor 2 that can provide rotational power to the self-rotating support disc 1 and whose position is relatively unfixed, a revolving support disc 3 that is connected to the motion motor 2 and can rotate, a fixed motor 4 that can provide rotational power to the revolving support disc 3, and a camera 5 that can collect dynamic and static draping results of fabrics. The device can not only collect static draping results when the fabric is subjected to its own gravity, but also collect dynamic draping results when the fabric is subjected to an external combined force during the draping process.

[0010] Furthermore, the self-rotating support disc 1 is connected to the motion motor 2 and can rotate under the drive of the motion motor 2, thereby continuously changing the force distribution and deformation distribution of the draped fabric.

[0011] Furthermore, the motion motor 2 is fixed on the revolution support disc 3 , and can move with the rotation of the revolution support disc 3 , thereby driving the suspended fabric to revolve around the axis of the revolution support disc 3 .

[0012] Furthermore, the revolution support disc 3 is connected to the fixed motor 4 and can rotate under the drive of the fixed motor 4. The purpose of the revolution support disc 3 rotating is to apply a combined force to the drape fabric so that the drape fabric can produce differential deformation under the combined force. The combined force is the combined force of the wind force and the centrifugal force to which the drape fabric is subjected during the revolution; the combined force causes the drape fabric to produce differential deformation during the movement, that is, the deformation of some areas of the drape fabric is aggravated, and the deformation of some areas is weakened.

[0013] Furthermore, the fixed motor 4 will not generate displacement during the experiment, and only rotates to drive the rotation of the revolving support disk 3; Furthermore, the self-rotating support disc 1 is used to support the hanging of the circular fabric sample. The surface of the self-rotating support disc 1 in contact with the fabric is relatively rough, which can ensure that there is a large friction between the circular fabric sample 1 and the self-rotating support disc 1 .

[0014] Furthermore, the rotation direction of the self-rotation support disc 1 and the rotation direction of the revolution support disc 3 can be adjusted according to actual conditions, and can be the same or opposite; Furthermore, the rotation speeds of the self-rotating support disc 1 and the revolving support disc 3 are both relatively low, so that the dynamic and static draping results of different fabrics can be distinguished.

[0015] Embodiment: A circular fabric with a diameter of 240 mm is suspended on a self-rotating support disk 1 with a diameter of 120 mm, and the self-rotating support disk 1 rotates under the drive of the motion motor 2. There is sufficient friction between the contact surface of the self-rotating support disk 1 and the fabric, ensuring that the fabric can rotate around the rotation axis of the self-rotating support disk 1, and can evenly change the angle of the circular fabric. The motion motor 2 connected to the self-rotating support disk 1 is fixed on the revolution support disk 3 to ensure that the center of the self-rotating support disk 1 is away from the center of the revolution support disk 4. At the same time, the fixed motor 4 is used to drive the revolution support disk 3 to rotate, and the rotation of the revolution support disk 3 is equivalent to the revolution of the suspended fabric around the axis of the revolution support disk 3. The motion law of the motion motor 2 and the fixed motor 4 is set to be stationary for 10 seconds before rotating. The camera collects the static drape of the fabric during the stationary process, and the camera collects the dynamic deformation of the draped fabric when the rotating fabric rotates and revolves in coordination, and the video collected by the camera is used as the dynamic and static drape result of the fabric.

[0016] The deformation of the fabric under the combined force in the embodiment of the present application is shown in the following example. Figure 2 As shown in the figure, when the drape fabric is suspended in a static state, it is not subjected to the resultant force caused by the revolution, so there is no obvious difference in the overall deformation of the drape fabric. When the drape fabric is subjected to the resultant force, the bending degree of some areas of the drape fabric increases, and the bending degree of some areas decreases, and the fabric fluttering phenomenon occurs in the part where the deformation is weakened.

[0017] The simulation effect in the embodiment of the present application is as follows Figure 3 As shown in the figure, when the revolution angle and the rotation angle are both 0 degrees, there is no resultant force in this process. When the fabric rotates and revolves in coordination, the position of the draped fabric relative to the revolution axis of the revolution support disk constantly changes, and the rotation of the rotation support disk also causes the fabric part with aggravated deformation to continuously migrate, so that each unit angle of the circular fabric can effectively show the dynamic drape deformation.

[0018] In summary, the key technology of the present application lies in the combination of rotation and revolution during the fabric draping process. When the fabric is continuously subjected to a fixed force during the revolution, the force aggravates the deformation of some areas of the draped fabric and weakens the deformation of some areas. When the fabric rotates, the deformation area of ​​the circular fabric gradually migrates, which can more comprehensively display the deformation results of various areas of the draped fabric under the action of external forces. This method of combining rotation and revolution during the fabric draping process can more reasonably display the draping characteristics of the fabric. The dynamic and static fabric draping videos collected by the present invention are suitable for the training of large deep learning models.

[0019] Although the technical solutions of the present invention have been described and listed in detail, it should be understood that it is obvious to those skilled in the art to make modifications to the above embodiments or adopt equivalent alternatives. These modifications or improvements made without departing from the spirit of the present invention are within the scope of protection required by the present invention.

Claims

1. A device for collecting dynamic and static drape characteristics of fabrics comprising a dual rotation system, characterized in that: It includes a self-rotating support disc and a motion motor for providing rotational power to the self-rotating support disc, a revolving support disc fixed to the motion motor, a fixed motor for providing power to the revolving support disc, and a camera for collecting dynamic and static draping results of the fabric; The self-rotating support disc is used to support the draping of a circular fabric sample; the draping characteristics of the fabric sample are displayed by combining self-rotation and revolution during the fabric draping process.

2. The device for collecting dynamic and static drape characteristics of fabric according to claim 1, characterized in that: The self-rotating support disc can rotate under the drive of the motion motor, and the rotation is the self-rotation of the draped fabric, and the axis of the self-rotation is the rotation axis of the self-rotating support disc.

3. The device for collecting dynamic and static drape characteristics of fabric according to claim 1, characterized in that: The revolution support disc can rotate under the drive of a fixed motor, and the rotation is the revolution of the dangling fabric, and the axis of the revolution is the rotation axis of the revolution support disc.

4. The device for collecting dynamic and static drape characteristics of fabric according to claim 1 or 3, characterized in that: The rotation of the revolving support disk can provide a resultant force, which is the resultant force of wind force and centrifugal force on the drape fabric when it rotates around the revolving axis; this resultant force causes the drape fabric to produce differential deformation during the movement, that is, the deformation of some areas of the drape fabric is aggravated, and the deformation of some areas is weakened.

5. The device for collecting dynamic and static drape characteristics of fabric according to claim 4, characterized in that: The rotation of the self-rotating support disk is used to change the force position of the drape fabric, so that the area where the deformation is aggravated gradually migrates during the revolution of the drape fabric, and the area where the deformation is weakened also gradually migrates. Finally, each area of ​​the drape fabric can undergo various drape deformations.

6. The device for collecting dynamic and static drape characteristics of fabric according to claim 1 or 5, characterized in that: The surface of the self-rotating support disk in contact with the circular fabric sample is rough, so as to ensure the friction between the fabric sample and the self-rotating support disk.

7. The device for collecting dynamic and static drape characteristics of fabric according to claim 6, characterized in that: The direction of rotation of the self-rotating support disc and the direction of rotation of the revolution support disc are adjusted according to actual conditions and can be the same or opposite.

8. The device for collecting dynamic and static drape characteristics of fabric according to claim 1 or 7, characterized in that: The camera acquisition result is a short video, which is used for training a large deep learning model.

Images