TWI765326B - Tensionless bending machine equipment and its correction method - Google Patents

Abstract

The present invention relates to a tension-free bending machine equipment and a calibration method thereof, which mainly include: a machine table, a first fixed base plate, a second fixed base plate, a rotary drive mechanism, a shaft center rotation mechanism and a moving mechanism. The programmable control device (PLC) of the rotary drive mechanism is operated by the programmable control device receiving the computing device. The computing device has a correction calculation formula. According to the calibration formula, the thickness of the flexible screen, the shaft diameter of the axis rotation mechanism, and the initial position are imported. data, the first displacement data, the second displacement data, the rotation angle data and the distance data, and generate a correction information for the flexible screen to be bent and attached to the axis rotation mechanism, so that the flexible screen can be flipped each time. The diameter can be tangential to the outer diameter of the shaft.

Description

Tensionless bending machine equipment and its correction method

The invention relates to a bending machine, in particular to a tension-free bending machine equipment and a correction method thereof.

Press, with the emergence of flexible displays, such as OLED displays, the demand for reliability testing of flexible displays increases, especially the reliability testing of bending is more important. The general bending test equipment will not be able to fix the bending area of the flexible screen in the same place due to the tension or the moment generated by its structure during bending, resulting in the bending area of each bending. The change will even generate external force on the flexible screen, which will then peel off the flexible screen, thus causing problems with the test accuracy of the flexible screen.

The detailed features and advantages of the present invention are described in detail below in the embodiments, and the content is sufficient to enable any person skilled in the relevant art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of the patent application and the drawings , any person skilled in the related art can easily understand the related objects and advantages of the present invention.

The main purpose of the present invention is: a correction method based on a calibratable tension-free flexible screen bending equipment, mainly to measure the displacement generated by the flexible screen during bending in advance, and then bring the displacement back to the correctable bending equipment .

In order to achieve the above-mentioned purpose, a tension-free bending machine device of the present invention includes: the calibration method for a tension-free bending machine according to claim 1, the device includes: a machine table on which a support component is erected; a rotary drive a mechanism, which is connected to an axis rotation mechanism pivoted on the support assembly; a first fixed base plate is pivoted to the axis rotation mechanism, and the first fixed base plate is provided with a first a vacuum adsorption structure and a first clamping structure; and a moving mechanism, which is disposed on the machine table and fixes a second fixed substrate, and the second fixed substrate is provided with a second vacuum adsorption structure and a second clamping structure .

According to an embodiment of the present invention, the second fixed base plate is pivotally connected to the axis rotation mechanism, and moves laterally toward the first fixed base plate through the moving mechanism according to the rotation of the first fixed base plate.

According to an embodiment of the present invention, the first fixed base plate is provided with a plurality of first pivoting portions pivotally connected to the axis rotation mechanism.

According to an embodiment of the present invention, the second fixed base plate is provided with a plurality of second pivot portions pivotally connected to the shaft center rotating mechanism and interfering with each of the first pivot portions.

According to an embodiment of the present invention, the rotary drive mechanism is a linear motor.

According to an embodiment of the present invention, the support assembly is composed of a plurality of brackets arranged at corresponding positions.

The present invention relates to a method for calibrating a tensionless bending machine, comprising: a. respectively fixing a flexible screen to a first fixing substrate and a second fixing substrate in the bending machine; b. The initial position data of the moving mechanism of the fixed substrate; c. An axis rotation mechanism in the bending machine is driven by a rotary drive mechanism and drives the first fixed substrate to rotate while obtaining a rotation angle data; d. The first fixed The rotation of the base plate simultaneously links the moving mechanism on the second fixed base plate, and after the first fixed base plate completes rotation, the first displacement data of the moving mechanism is obtained; e. At the same time, after the first fixed base plate completes the rotation, the flexible The screen obtains a distance data corresponding to the position of the axis rotation mechanism; f. Move the moving mechanism on the second fixed substrate until the flexible screen is attached to the axis rotation mechanism, at which time the second displacement data of the second fixed substrate is obtained; g. The rotation drive mechanism is connected to a programmable control device, the programmable control device is connected and operated by a computing device, and the computing device has a correction operation formula; and h, import the thickness of the flexible screen, the shaft diameter of the shaft center rotation mechanism, and the initial position data according to the correction operation formula , the first displacement data, the rotation angle data and the distance data, and generate a correction information for the flexible screen to be bent and attached to the axis rotation mechanism.

According to an embodiment of the present invention, the correction formula is 2*π*r*θ/360°*X, where r is the axis radius of the axis rotation mechanism, H is the thickness of the flexible screen, and θ is the rotation angle Data and X are the displacement correction coefficients of the moving mechanism.

According to an embodiment of the present invention, the displacement correction coefficient is obtained from a displacement operation formula, and the displacement operation formula is X=(P2-P0)/(P1-P0), wherein P0 is the initial position data, and P1 is the first position data. A displacement data and P2 are the second displacement data.

The secondary purpose of the present invention is: it can support various curvature radii, and realize the requirement of no tension, avoid the displacement of the flexible screen caused by bending, ensure the consistent bending position every time, and can effectively suppress the multi-layer structure of the flexible screen due to torque And peel off.

1: Bending machine

10: Machine

100: Support components

1001: Bracket

11: Rotary drive mechanism

12: Axis rotation mechanism

13: The first fixed substrate

130: The first vacuum adsorption structure

132: The first clamping structure

134: The first pivot part

14: Second fixed substrate

140: Second vacuum adsorption structure

142: Second clamping structure

144: Second pivot part

15: Moving Mechanisms

2: Flexible screen

P0: Initial position data

P1: first displacement data

P2: Second displacement data

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of placing a flexible screen according to the present invention.

FIG. 3 is a top view of placing a flexible screen according to the present invention.

FIG. 4 is a schematic diagram of the rotation of the first fixed base plate of the present invention.

FIG. 5 is a schematic diagram of the movement of the second fixed substrate of the present invention.

FIG. 6 is a schematic diagram of steps of a preferred embodiment of the present invention.

FIG. 7 is a schematic diagram of the advance displacement of the moving mechanism of the present invention.

FIG. 8 is a schematic diagram of the starting position of the platform before the flexible screen of the present invention is bent.

FIG. 9 is a schematic diagram of the position of the flexible screen after bending before uncorrected according to the present invention.

FIG. 10 is a schematic diagram of the position of the flexible screen after being bent after uncorrected according to the present invention.

The embodiments of the present invention are described below by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

The structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of those who are familiar with the art, and are not intended to limit the implementation of the present invention. Therefore, it has no technical significance, and any modification of the structure, the change of the proportional relationship or the adjustment of the size should still fall within the scope of the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. The disclosed technical content must be within the scope of coverage. At the same time, terms such as "one", "two", "on", etc. quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. Changes in their relative relationships or Adjustments, if there is no substantial change in the technical content, should also be regarded as the scope of the present invention.

Please refer to FIG. 1 to FIG. 5 , which are a schematic diagram of the structure of the preferred embodiment of the present invention, a schematic diagram of placing a flexible screen, a top view of placing a flexible screen, a schematic diagram of the rotation of the first fixed substrate, and a schematic diagram of the movement of the second fixed substrate. . The present invention is a tension-free bending machine equipment. The bending machine 1 mainly includes: a machine table 10, a rotary drive mechanism 11 (a linear motor), an axis rotation mechanism 12, a first fixed base plate 13, a second fixed base plate 14 and The moving mechanism 15 and the machine table 10 are erected with a support assembly 100. The support assembly 100 is composed of a plurality of brackets 1001 arranged at corresponding positions. The mechanism 11 is further connected to the axis rotation mechanism 12 , the first fixed substrate 13 is pivotally connected to the axis rotation mechanism 12 , and a first vacuum adsorption structure 130 and a first clamping structure 132 are provided. Moving Mechanism 15 Setup A second fixed substrate 14 is fixed on the machine table 10 . The second fixed substrate 14 is provided with a second vacuum suction structure 140 and a second clamping structure 142 .

The aforementioned second fixed base plate 14 is pivotally connected to the axis rotation mechanism 12 , and moves laterally toward the first fixed base plate 13 through the moving mechanism 15 according to the rotation of the first fixed base plate 13 .

The aforementioned first fixed base plate 13 is provided with a plurality of first pivot portions 134 pivotally connected to the shaft center rotating mechanism 12 . The second fixed base plate 14 is provided with a plurality of second pivoting portions 144 pivotally connected to the shaft center rotating mechanism 12 and structurally interfering with each of the first pivoting portions 134 .

Referring to FIG. 4 and FIG. 5 together. Before performing the bending test, the flexible screen 2 will be set on the first fixed substrate 13 and the second fixed substrate 14 . At this time, the flexible screen 2 on the first fixed substrate 13 will first pass through the first clamping structure 132 The position is fixed, and then the first vacuum adsorption structure 130 is used to adsorb and fix it. In addition, the flexible screen 2 located on the second fixed substrate 14 is first fixed in position through the second clamping structure 142, and then adsorbed by the second vacuum adsorption structure 140. And fix it to avoid the bending failure caused by detachment during bending.

In addition to fixing the flexible screen 2 on the first fixed substrate 13 and the second fixed substrate 14, the center of the bending area of the flexible screen 2 needs to be aligned with the axis rotation mechanism 12. The main body of the present invention is divided into two parts: left and right, respectively The first fixed substrate 13 and the second fixed substrate 14 . When the bending machine 1 of the present invention is turned on, the first fixed base plate 13 and the second fixed base plate 14 return to the original position of the initial setting. During the automatic bending control, the first fixed base plate 13 and the second fixed base plate 14 will return to the original position. To the set initial position, for example, the first fixed base plate 13 and the second fixed base plate 14 form an included angle of 180 degrees. After the setting of the flexible screen 2 is completed, the first fixed substrate 13 is mainly responsible for the bending of the flexible screen 2, and the first fixed substrate 13 is driven by the rotary drive mechanism 11 (which is a linear motor) to turn around the axis rotation mechanism 12 until it reaches the second position. The fixed base plate 14 stops at a predetermined angle with respect to the first fixed base plate 13 , and the axis rotation mechanism 12 is replaced according to different curvature radii to meet the test requirements. As for the second fixed substrate 14, the different curvatures Panels with different radii or thicknesses move laterally from left to right through the moving mechanism 15 , and the moving distance is linearly linked with the first fixed substrate 13 , and the second fixed substrate 14 is adjusted through the displacement of the moving mechanism 15 to offset the flexible screen 2 The tension generated during bending or the torque generated by the multi-layer structure of the flexible screen 2 due to bending.

It is worth mentioning that, as can be seen from FIG. 3 and FIG. 4 , the first fixed base plate 13 is provided with a plurality of first pivot parts 134 , and each of the first pivot parts 134 is used to be pivotally connected to the shaft rotation mechanism 12 , and the second fixed base plate 14 is provided with a plurality of second pivoting parts 144, in addition to being pivotally connected to the axis rotating mechanism 12, it also has to interfere with the structure of each of the first pivoting parts 134. Therefore, when the first fixed base plate 13 rotates, the first pivoting connection The portion 134 is connected with the second pivot portion 144 on the second fixed base plate 14 to drive the second fixed base plate 14 and move laterally by the moving mechanism 15 .

From the above, it can be seen that the bending machine 1 of the present invention can support various curvature radii, and realize the requirement of no tension, avoid the displacement of the flexible screen 2 caused by bending, ensure that the bending position is consistent each time, and can effectively restrain the flexible screen. 2 The multi-layer structure peels off due to torque.

Please also refer to FIG. 6 to FIG. 10 , which are schematic diagrams of the steps of the preferred embodiment of the present invention, schematic diagrams of the advancing displacement of the moving mechanism, schematic diagrams of the starting position of the platform before the flexible screen is bent, and the flexible screen is bent before uncorrected. Schematic diagram of the position after bending and the position diagram of the flexible screen after bending. It can be seen from FIG. 6 that the calibration method of the tensionless bending machine of the present invention includes the following steps: a. respectively fixing a flexible screen on a first fixed substrate and a second fixed substrate in the bending machine; b. The initial position data of the moving mechanism of the second fixed substrate; c. An axis rotation mechanism in the bending machine is driven by a rotary drive mechanism and drives the first fixed substrate to rotate while obtaining a rotation angle data; d. The The rotation of the first fixed base plate simultaneously links the moving mechanism on the second fixed base plate, and the first displacement data of the moving mechanism is obtained after the rotation of the first fixed base plate is completed; e. At the same time, after the rotation of the first fixed substrate is completed, a distance data is obtained from the flexible screen corresponding to the position of the axis rotation mechanism; f. Move the moving mechanism on the second fixed substrate until the flexible screen is attached to the The shaft center rotation mechanism, at this time, obtains the second displacement data of the second fixed substrate; g. The rotation driving mechanism is connected to a programmable control device, and the programmable control device is connected and operated by a computing device, and the computing device has a Correction operation formula; and h. Import the thickness of the flexible screen, the shaft diameter of the shaft center rotation mechanism, the initial position data, the first displacement data, the rotation angle data and the distance data according to the correction operation formula, and generate a After the flexible screen is bent, it is attached to the calibration information of the axis rotation mechanism.

The above correction formula is 2*π*r*θ/360°*X, where r is the axis radius of the axis rotation mechanism, H is the thickness of the flexible screen, θ is the rotation angle data and X is the movement mechanism. Displacement correction factor. The displacement correction coefficient is obtained from the displacement operation formula, which is X=(P2-P0)/(P1-P0), wherein P0 is the initial position data, P1 is the first displacement data and P2 is the second displacement data.

Before bending, the flexible screen 2 is fixed on the first fixed substrate 13 and the second fixed substrate 14 of the bending machine 1. At this time, the calibration operation function of the programmable control device (PLC) in the rotary drive mechanism 11 does not need to be turned on. When bending is performed and the angle θ between the two platforms is 0°, the initial position data P0 of the second fixed substrate 14 is first recorded. After the axis rotation mechanism 12 is rotated by 180°, the first fixed substrate 13 is located above the second fixed substrate 14 , while rotating, together with the second fixed base plate 14 moving toward the axis rotation mechanism 12 to record the first displacement data P1, and at the same time, there is distance data between the inner diameter of the flexible screen 2 and the outer diameter of the axis rotation mechanism 12, and then the second displacement data P1 is generated. The fixed substrate 14 moves in the reverse direction so that the inner diameter of the flexible screen 2 is translated and flattened to the outer diameter of the shaft center rotating mechanism 12, and the position of the second fixed substrate 14 after the movement is the second displacement data P2. The displacement correction coefficient can be calculated as X=(P2-P0)/(P1-P0), and then imported into the correction formula as 2*π*r*θ /360°*X, in this way, after the flexible screen 2 is bent, the programmable control device (PLC) performs correction through the correction formula, so that the outer diameter of the axis rotation mechanism 12 is translated to the position where the inner diameter of the flexible screen 2 is translated. . Based on the calibration method of the calibratable tension-free flexible screen bending equipment, the displacement generated by the flexible screen during bending can be measured in advance, and then the displacement can be brought back to the calibratable bending equipment. At the same time, with the bending machine 1, it can support various curvature radii, and realize the requirement of no tension, avoid the displacement of the flexible screen caused by bending, ensure the same bending position every time, and effectively prevent the multi-layer structure of the flexible screen from peeling off due to torque .

The above-mentioned embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make modifications to the above-described embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the right protection of the present invention should be listed in the scope of the patent application described later.

12: Axis rotation mechanism

13: The first fixed substrate

14: Second fixed substrate

2: Flexible screen

P0: Initial position data

P1: first displacement data

Claims (9)

A tensionless bending machine equipment, comprising: a machine table, which erects a support assembly; a rotary drive mechanism, which is connected to an axis rotation mechanism pivoted on the support assembly; a first fixed base plate, which is pivotally connected In the axis rotation mechanism, a first vacuum suction structure and a first clamping structure are arranged on the first fixed substrate; and a moving mechanism is arranged on the machine table and fixes a second fixed substrate, the second fixed The substrate is provided with a second vacuum adsorption structure and a second clamping structure. The tension-free bending machine device as described in claim 1, wherein the second fixed base plate is pivotally connected to the shaft center rotation mechanism, and is fixed toward the first fixed base plate through the moving mechanism according to the rotation of the first fixed base plate The substrate moves laterally. The tensionless bending machine equipment as described in claim 1, wherein the first fixed base plate is provided with a plurality of first pivot parts pivotally connected to the shaft center rotating mechanism. The tension-free bending machine equipment as described in claim 3, wherein the second fixed base plate is provided with a plurality of second pivot parts pivotally connected to the axis rotation mechanism and interfering with the structures of the first pivot parts . The tensionless bending machine device as described in claim 1, wherein the rotational drive mechanism is a linear motor. The tension-free bending machine device as described in item 1 of the patent application scope, wherein the support component is composed of a plurality of brackets arranged at corresponding positions. A tension-free bending machine calibration method, the tension-free bending machine equipment as claimed in claim 1, comprising: a. respectively fixing a flexible screen to a first fixed substrate and a second fixed substrate in the bending machine fixed substrate; b. Obtain the initial position data (P0) of the moving mechanism arranged on the second fixed substrate; c. An axis rotation mechanism in the bending machine is driven by a rotary drive mechanism and drives the first fixed substrate to rotate while obtaining A rotation angle data (180); d. The first fixed base plate rotates and simultaneously links the moving mechanism on the second fixed base plate, and after the first fixed base plate completes the rotation, the first displacement data of the moving mechanism is obtained (P1) ; e. After the first fixed substrate is rotated, a distance data is obtained from the flexible screen corresponding to the position of the axis rotation mechanism; f. Move the moving mechanism on the second fixed substrate until the flexible screen is attached The shaft center rotation mechanism obtains the second displacement data (P2) of the second fixed substrate at this time; g. The rotation driving mechanism is connected to a programmable control device, and the programmable control device is connected and operated by a computing device. The computing device has a correction operation formula; and h, import the thickness of the flexible screen, the shaft diameter of the axis rotation mechanism, the initial position data, the first displacement data, the second displacement data, and the rotation angle according to the correction operation formula data and the distance data, and generate a calibration information for the flexible screen to fit on the axis rotation mechanism after being bent. The tension-free bending machine equipment as described in item 7 of the scope of the patent application, wherein the correction formula is 2*π*r*θ/360°*X, wherein r is the axis radius of the axis rotation mechanism, and H is the axis The thickness of the flexible screen, θ is the rotation angle data and X is the displacement correction coefficient of the moving mechanism. The tensionless bending machine device as described in item 8 of the scope of the patent application, wherein the displacement correction coefficient is obtained from a displacement calculation formula, and the displacement calculation formula is X=(P2-P0)/(P1-P0), wherein P0 is The initial position data, P1 is the first displacement data, and P2 is the second displacement data.

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