Tentering system with image-based cloth automatic correction function

Abstract

The present invention relates to a tenter system having an image-based cloth automatic correction function and a method thereof, the tenter system having the image-based cloth automatic correction function including a tenter, an input cloth design pattern correction unit configured at a rear of the tenter to correct an input cloth design pattern of an input cloth input to the tenter, a first scanning unit configured at a front of the tenter to obtain an output cloth design pattern image by scanning a design pattern of an output cloth discharged from the tenter, and a central processing unit to communicate with the input cloth design pattern correction unit and the first scanning unit.

Description

TECHNICAL FIELD

[0001] The present application relates to a tentering system having an image-based cloth automatic correction function. BACKGROUND

[0002] Generally, fabrics are only desized, scoured, bleached, dyed, and cannot ensure the product value as suitable for use. That is, in a state where processing has not been completed, the touch is rough, and, because it is not suitable for use as a fabric, it is only a semi-finished product. Accordingly, by manufacturing excellent products through appropriate tentering processes for various fabrics, the product value is improved, which is the original purpose of tentering.

[0003] As such, for dyeing of various fabrics, as a tenter machine that is invested in a process that occupies the most important part, hot air is supplied to the fabric being transferred at a temperature set according to the type of fabric, thereby correcting the density of a certain width or length of the fabric, etc., and imparting pre-setting, water repellent processing, softening processing, shrink-proof processing, stain-proof processing effects, etc.

[0004] In this regard, according to the different uses of various fabric cloths, various finishing processes that constitute the fiber characteristics of the fabric are appropriately applied, thereby fully developing the characteristics of the fabric and compensating for its shortcomings, thereby being able to change and beautify the performance of the fabric.

[0005] Figure 1 A diagram showing the structure of a conventional tentering process. As shown in Figure 1 According to the transfer path of the supplied fabric cloth 1, a chemical tank 2 and a tenter machine 10 are provided. The chemical tank 2 houses fuel or softener, etc. inside, and a plurality of rolls are provided on the upper part and inside of the inflow side of the chemical tank 2, which guide the cloth 1 to be immersed in the chemical and transferred. A calender 3 consisting of a pair of rolls is provided on the upper part of the discharge side of the chemical tank 2, which spreads the cloth 1 while removing foreign matter and chemicals adhering to the cloth 1 at once. The tenter machine 10 has a plurality of drying chambers 10a, 10b inside through which the cloth 1 passes, and each drying chamber 10a, 10b is provided with a hot air supplier 11a for spraying hot air to the cloth 1, so that the chemicals and water remaining in the cloth 1 are removed by heat after passing through the calender 3.

[0006] In the tentering process, cloth formed with a predetermined design pattern is input to a tenter, and after being cooled after the tentering process, the design pattern of the finally obtained cloth is contracted or distorted in the lateral and / or longitudinal direction compared to the design pattern of the cloth initially input, and thus the design pattern is deformed. For example, there is a case where the cloth after the tentering process is contracted in the lateral direction so that the lateral interval of the design pattern is narrowed, or the cloth after the tentering process is contracted in the longitudinal direction so that the longitudinal interval of the design pattern is narrowed, or the design pattern is deformed in the left-right direction.

[0007] When such deformation occurs, in the existing tentering process, the operator inputs the cloth to the tenter while manually correcting the lateral and / or longitudinal interval of the input cloth, and thus prevents and corrects the deformation of the design pattern of the cloth.

[0008] However, in the tentering process performed continuously, the operator detects the design pattern of the cloth cooled after the tentering process and finally obtained, in order to confirm and correct the deformation of the design pattern, and manually corrects the lateral and / or longitudinal interval of the input cloth, and thus not only makes the correction of the design pattern inaccurate, but also has a problem of very low work efficiency.

[0009]

Prior Art Documents

[0010] (Patent Document 1) Korean Patent No. 10-1046217 (2011.06.28)

[0011] (Patent Document 2) Korean Patent No. 10-0920488 (2009.09.29)

[0012] (Patent Document 3) Korean Patent No. 10-0234593 (1999.09.17) SUMMARY

[0013] TECHNICAL PROBLEM

[0014] An embodiment of the present application aims to provide a tentering system having a cloth automatic correction function based on an image, which can automatically correct a pattern of input cloth.

[0015] Another embodiment of the present application aims to provide a cloth automatic correction method of a tentering system based on an image, which can automatically correct a pattern of input cloth.

[0016] MEANS FOR SOLVING PROBLEMS

[0017] In one embodiment of the present invention, a fabric stretching system with image-based automatic fabric correction function is provided, comprising: a stretching machine; a fabric design pattern correction unit disposed behind the stretching machine for correcting the fabric design pattern of the fabric fed into the stretching machine; a first scanning unit disposed in front of the stretching machine for obtaining an image of the discharged fabric design pattern by scanning the design pattern of the discharged fabric; and a central processing unit for communicating with the fabric design pattern correction unit and the first scanning unit. The central processing unit receives a reference design pattern image input from a user and receives a discharged fabric design pattern image provided by the first scanning unit. It compares the reference design pattern image and the discharged fabric design pattern image. When the comparison result exceeds a predetermined set range, it corrects the fabric design pattern by controlling the fabric design pattern correction unit and adjusting at least one of the transverse width and supply speed of the fed fabric.

[0018] In another embodiment of the present invention, an automatic fabric correction method for an image-based tenter frame system is provided, comprising: a reference design pattern image input step for inputting a reference design pattern image; a fabric discharge design pattern image acquisition step for acquiring a fabric discharge design pattern image of the discharged fabric discharged from the tenter frame; a fabric discharge design pattern deformation judgment step for comparing the input reference design pattern image and the acquired fabric discharge design pattern image, and judging that the fabric discharge design pattern is deformed when the comparison result exceeds a predetermined set range; and an input fabric design pattern correction step for adjusting at least one of the lateral width and supply speed of the input fabric fed into the tenter frame based on the deformation judgment of the discharged fabric design pattern, thereby correcting the input fabric design pattern.

[0019] Invention Effects

[0020] According to one embodiment of the present invention, the stretching system can provide an image-based automatic fabric correction function that can automatically correct the design pattern of the fabric.

[0021] According to another embodiment of the present invention, the automatic fabric correction method of the stretching system can provide an image-based automatic fabric correction function for the stretching system capable of automatically correcting the design pattern of the fabric. Attached Figure Description

[0022] Figure 1 A diagram illustrating the structure of a conventional tenter frame process.

[0023] Figure 2 This diagram illustrates the setup of a tenter frame system according to one embodiment of the present invention.

[0024] Figure 3This is a top view of a tenter frame system according to an embodiment of the present invention.

[0025] Figure 4 for Figure 3 A-A' sectional view.

[0026] Figure 5 for Figure 3 Sectional view along the B-B' direction.

[0027] Figure 6 A schematic diagram illustrating a reference design pattern according to a specific embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram illustrating an embodiment of the invention in which a reference design pattern and a fabric design pattern formed on a fabric are arranged in an overlapping configuration.

[0029] Figure 8 This diagram illustrates the setup of a tensioning system according to another embodiment of the present invention.

[0030] Figure 9 This is a top view of a tensioning system according to another embodiment of the present invention.

[0031] Figure 10 for Figure 9 A cross-sectional view along the C-C' direction. Detailed Implementation

[0032] Hereinafter, various specific examples of the present invention will be described in detail with reference to the accompanying drawings.

[0033] Figure 2 To illustrate the setup state of a tenter frame system according to an embodiment of the present invention, Figure 3 This is a top view of a tenter frame system according to an embodiment of the present invention. Figure 4 for Figure 3 A-A' sectional view, Figure 5 for Figure 3 Sectional view along the B-B' direction.

[0034] Reference Figures 2 to 5 According to one embodiment of the present invention, a tenter frame system 100 may include a tenter frame 130, a fabric design pattern correction unit 120, a first scanning unit 140, and a central processing unit (not shown). Additionally, the tenter frame system 100 also includes a fabric supply unit 110.

[0035] Unless otherwise stated in this specification, the fabric supply section 110 and the tenter frame 130 are known.

[0036] Furthermore, unless otherwise stated in this specification, "front" means in front of the direction in which the fabric 101 moves, and "rear" means behind the direction in which the fabric 101 moves.

[0037] In the tenter system 100 of the present invention, after the fabric 101 is supplied to the tenter system 100 through the fabric supply unit 110, it passes through the fabric design pattern correction unit 120, the tenter machine 130 and the first scanning unit 140 in sequence and is finally discharged.

[0038] The fabric design pattern correction unit 120 is located behind the tenter frame 130 and is used to correct the fabric design pattern of the fabric fed into the tenter frame 130.

[0039] The first scanning unit 140 is disposed in front of the tenter frame 130 and is used to obtain an image of the design pattern of the fabric being discharged from the tenter frame 130 by scanning the design pattern of the discharged fabric.

[0040] The central processing unit (not shown) is used to communicate with the fabric design pattern correction unit 120 and the first scanning unit 140.

[0041] The central processing unit (not shown) receives the input of a reference design pattern image from the user and the supply of a discharge fabric design pattern image from the first scanning unit 140. It compares the reference design pattern image and the discharge fabric design pattern image. When the comparison result exceeds a predetermined set range, it corrects the input fabric design pattern by controlling the input fabric design pattern correction unit 120 and adjusting at least one of the input fabric lateral width and supply speed.

[0042] Figure 6 To illustrate a schematic diagram of a reference design pattern 200 according to a specific embodiment of the present invention, Figure 7 This is a schematic diagram illustrating an embodiment of the invention in which a reference design pattern 200 and a fabric design pattern 300 formed on a fabric are arranged in an overlapping configuration. More detailed description follows. Figure 7 A fabric design pattern 300 is proposed to be formed on fabric 101, and a reference design pattern 200 is overlapped on the leftmost fabric design pattern 300.

[0043] Reference Figure 6 and Figure 7 The reference design pattern 200 is the original design pattern of the fabric design pattern 300 formed on the fabric 101. That is, when weaving the fabric 101, the fabric 101 forms a fabric design pattern 300 based on the reference design pattern 200 woven by a loom (not shown).

[0044] As detailed below, fabric woven based on reference design pattern 200, including fabric design pattern 300 (i.e., the fed fabric), may deform due to shrinkage or distortion in the lateral and / or longitudinal directions during cooling after the tenter frame process. Therefore, the design pattern of the final fabric (i.e., the discharged fabric) may differ considerably from the design pattern of the fed fabric in terms of lateral and / or longitudinal spacing, or may be distorted. This invention is used to correct such deformation.

[0045] Before performing the stretching process, the user can input the reference design pattern image of the photographed reference design pattern 200 into the central processing unit (not shown).

[0046] The fabric fed into the tenter frame 130 may shrink or become deformed laterally and / or longitudinally during the cooling process after being stretched in the tenter frame 130. As a result, the design pattern of the final discharged fabric may differ significantly from the design pattern of the fabric fed into the tenter frame in terms of lateral and / or longitudinal spacing, or may be distorted or deformed.

[0047] Therefore, by sensing the degree of shrinkage or distortion of the fabric during cooling after the stretching process, the degree of deformation of the discharged fabric relative to the input fabric can be determined, and the lateral spacing, longitudinal spacing and / or distortion of the design pattern of the input fabric can be corrected, thereby ensuring that the final design pattern of the discharged fabric is consistent with the reference design pattern.

[0048] According to another embodiment of the present invention, the tenter system 100 further includes a fabric discharge cooling section 150, which is disposed between the tenter 130 and the first scanning section 140.

[0049] Unless otherwise stated in this specification, the fabric cooling section 150 is known.

[0050] In another specific embodiment of the present invention, the fabric design pattern correction unit 120 includes a fabric transfer conveyor belt 121.

[0051] The fabric transfer conveyor belts 121 are respectively arranged at intervals on the left and right sides of the input fabric, and may include a first fabric transfer conveyor belt 121a and a second fabric transfer conveyor belt 121b that are independently controlled.

[0052] A first fabric transfer conveyor belt 121a transfers the left edge of the input fabric, and a second fabric transfer conveyor belt 121b transfers the right edge of the input fabric. Both the first and second fabric transfer conveyor belts 121a and 121b include fabric transfer pins 123a and 123b, respectively formed in an upwardly projecting manner. More specifically, the left edge of the input fabric on the first fabric transfer conveyor belt 121a is fixed to the first fabric transfer pin 123a and transferred therefrom. Similarly, the right edge of the input fabric on the second fabric transfer conveyor belt 121b is fixed to the second fabric transfer pin 123b and transferred therefrom.

[0053] The fabric design pattern correction unit 120 may also include a fabric fixing roller 122, which contacts the upper surface of the fabric 101 and rotates in a state that applies downward pressure to the fabric 101 towards the fabric transfer conveyor belt 121. The fabric fixing roller 122 may include a first fabric fixing roller 122a and a second fabric fixing roller 122b that respectively apply downward pressure to the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b.

[0054] At least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b can be moved laterally to adjust the lateral spacing of the fabric design pattern. More specifically, the left edge of the fabric is fixed to the first fabric transfer pin 123a and transferred, while the right edge of the fabric is fixed to the second fabric transfer pin 123b and moved. Therefore, when it is necessary to widen the lateral spacing of the fabric design pattern, by laterally moving at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b, the spacing between the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b is widened, and the fabric is also stretched laterally, ultimately enabling the lateral spacing of the fabric design pattern to be widened.

[0055] In another specific embodiment of the invention, at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b can adjust the supply speed of the fed fabric to adjust the longitudinal spacing of the fabric design pattern. More specifically, as previously described, the left edge of the fed fabric is fixed to the first fabric transfer pin 123a and is transferred, while the right edge of the fed fabric can be fixed to the second fabric transfer pin 123b and is transferred. Therefore, when it is necessary to widen the longitudinal spacing of the fed fabric design pattern, if the rotational speed of at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b is reduced, although the supply speed of the fed fabric will be reduced, the fabric will be stretched by the tension of the fabric portion already fed into the tenter frame 130, ultimately widening the longitudinal spacing of the fed fabric design pattern.

[0056] In another specific embodiment of the present invention, a central processing unit (not shown) compares the lateral spacing of a reference design pattern image with the lateral spacing of an output fabric design pattern image. When the comparison result exceeds a predetermined set range, it controls an input fabric design pattern correction unit to correct the input fabric design pattern by laterally moving at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b. As described above, by laterally moving at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b, the spacing between the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b is widened, and the input fabric is also laterally stretched, ultimately widening the lateral spacing of the input fabric design pattern.

[0057] In another specific embodiment of the present invention, a central processing unit (not shown) compares the longitudinal spacing of a reference design pattern image with the longitudinal spacing of a fabric design pattern image. When the comparison result exceeds a predetermined set range, the input fabric design pattern correction unit adjusts the rotational speed of at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b to correct the input fabric design pattern. As mentioned above, if the rotational speed of at least one of the first fabric transfer conveyor belt 121a and the second fabric transfer conveyor belt 121b is reduced, the supply speed of the input fabric will be reduced. However, the tension of the fabric portion already inserted into the tenter frame 130 will stretch the fabric, ultimately widening the longitudinal spacing of the input fabric design pattern.

[0058] In another specific embodiment of the present invention, a central processing unit (not shown) compares a reference design pattern image and a fabric discharge design pattern image. When distortion occurs in the fabric discharge design pattern image, it controls an input fabric design pattern correction unit to correct the input fabric design pattern by adjusting either the rotational speed of the first fabric transfer conveyor belt 121a or the rotational speed of the second fabric transfer conveyor belt 121b. As previously described, the left edge of the input fabric is fixed to the first fabric transfer pin 123a and transferred, while the right edge of the input fabric is fixed to the second fabric transfer pin 123b and transferred. Therefore, when the left portion of the fabric discharge design pattern image is distorted relative to the right portion due to backward pushing, the distortion can be corrected by increasing the rotational speed of the first fabric transfer conveyor belt 121a or decreasing the rotational speed of the second fabric transfer conveyor belt 121b. In addition, when the right side of the fabric design pattern image is distorted compared to the left side due to backward pushing, the distortion can be corrected by reducing the rotation speed of the first fabric transfer conveyor belt 121a or increasing the rotation speed of the second fabric transfer conveyor belt 121b.

[0059] In another specific embodiment of the present invention, control of the fabric design pattern correction unit by means of the central processing unit can be performed by machine learning methods.

[0060] in addition, Figure 8 To illustrate the installation state of the tenter frame system according to another embodiment of the present invention, Figure 9 This is a top view of a tenter frame system according to another embodiment of the present invention. Figure 10 for Figure 9 A cross-sectional view along the C-C' direction.

[0061] Reference Figures 8 to 10 In another specific embodiment of the present invention, the tenter frame system may further include a second scanning unit 160, which is located between the design pattern correction unit 120 and the tenter frame 130. The second scanning unit 160 scans the design pattern of the fabric after it has passed through the design pattern correction unit 120, obtaining an image of the fabric design pattern. At this time, the central processing unit communicates with the second scanning unit 160 and receives the provided image of the fabric design pattern. Furthermore, the central processing unit compares the reference design pattern image and the fabric design pattern image. When the comparison result exceeds a predetermined set range, it controls the fabric design pattern correction unit to adjust at least one of the lateral width and feed speed of the fabric, thereby correcting the fabric design pattern.

[0062] Preferably, the central processing unit compares the input fabric design pattern image provided by the second scanning unit 160 with the reference design pattern image. When distortion of the input fabric design pattern image occurs, the input fabric design pattern correction unit can be controlled to correct the input fabric design pattern by adjusting either the rotation speed of the first fabric transfer conveyor belt 121a or the rotation speed of the second fabric transfer conveyor belt 121b in an increasing or decreasing manner.

[0063] In another specific embodiment of the present invention, an automatic fabric correction method for an image-based tenter frame system is provided, comprising: a reference design pattern image input step for inputting a reference design pattern image; a fabric discharge design pattern image acquisition step for acquiring a fabric discharge design pattern image of the discharged fabric discharged from the tenter frame; a fabric discharge design pattern deformation judgment step for comparing the input reference design pattern image and the acquired fabric discharge design pattern image, and determining that the fabric discharge design pattern is deformed when the comparison result exceeds a predetermined set range; and an input fabric design pattern correction step for adjusting at least one of the lateral width and supply speed of the input fabric fed into the tenter frame based on the deformation judgment of the discharged fabric design pattern, thereby correcting the input fabric design pattern.

[0064] In another specific embodiment of the present invention, the fabric design pattern deformation judgment step includes a lateral deformation judgment step, which compares the lateral spacing of the reference design pattern image and the lateral spacing of the fabric design pattern image. When the comparison result exceeds a predetermined set range, it is determined that the fabric design pattern is laterally deformed. The fabric design pattern correction step may include a lateral correction step for the fabric design pattern, which adjusts the lateral width of the fabric fed into the tenter frame based on the lateral deformation judgment of the fabric design pattern, thereby correcting the fabric design pattern.

[0065] In another specific embodiment of the present invention, the fabric design pattern deformation judgment step includes a longitudinal deformation judgment step, which compares the longitudinal spacing of the reference design pattern image and the longitudinal spacing of the fabric design pattern image. When the comparison result exceeds a predetermined set range, it is determined that the fabric design pattern is longitudinally deformed. The fabric design pattern correction step may include a fabric design pattern longitudinal correction step, which adjusts the supply speed of the fabric fed into the tenter frame based on the longitudinal deformation judgment of the fabric design pattern, thereby adjusting the longitudinal width and thus correcting the fabric design pattern.

[0066] In another specific embodiment of the present invention, the fabric design pattern deformation judgment step includes a distortion deformation judgment step, comparing a reference design pattern image and an fabric design pattern image, and judging that the fabric design pattern is distorted when distortion occurs in the fabric design pattern image. The fabric design pattern correction step includes an fabric design pattern distortion correction step, wherein the fabric design pattern distortion correction step adjusts the distortion by increasing or decreasing either the supply speed of the left and right edges of the fabric fed into the tenter frame, based on the fabric design pattern distortion deformation judgment, thereby correcting the fabric design pattern.

[0067] The following describes various embodiments of the present invention.

[0068] (1) A tenter frame system with image-based automatic fabric correction function includes: a tenter frame; a fabric design pattern correction unit disposed behind the tenter frame for correcting the fabric design pattern of the fabric fed into the tenter frame; a first scanning unit disposed in front of the tenter frame for obtaining an image of the fabric design pattern of the discharged fabric by scanning the design pattern of the discharged fabric discharged from the tenter frame; and a central processing unit for communicating with the fabric design pattern correction unit and the first scanning unit. The central processing unit receives an input of a reference design pattern image from a user and receives a provided image of the discharged fabric design pattern from the first scanning unit. It compares the reference design pattern image and the discharged fabric design pattern image. When the comparison result exceeds a predetermined set range, it corrects the fabric design pattern by controlling the fabric design pattern correction unit 120 and adjusting at least one of the lateral width and the supply speed of the fabric fed into the tenter frame.

[0069] (2) In a tenter frame system with image-based automatic fabric correction function, a fabric discharge cooling unit is also included, which is disposed between the tenter frame and the first scanning unit.

[0070] (3) In a stretching system with image-based automatic fabric correction function, the fabric design pattern correction unit includes a fabric transfer conveyor belt, which is arranged at intervals on the left and right sides of the fabric to be fed. It includes a first fabric transfer conveyor belt and a second fabric transfer conveyor belt that are independently controlled. The first fabric transfer conveyor belt moves the left edge of the fabric to be fed, and the second fabric transfer conveyor belt moves the right edge of the fabric to be fed. At least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt can be moved laterally to adjust the lateral spacing of the fabric design pattern to be fed.

[0071] (4) In a stretching system with image-based automatic fabric correction function, at least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt can adjust the supply speed of the input fabric to adjust the longitudinal spacing of the input fabric design pattern.

[0072] (5) In a stretching system with image-based automatic fabric correction function, the central processing unit compares the lateral spacing of the reference design pattern image and the lateral spacing of the output fabric design pattern image. When the comparison result exceeds a predetermined set range, the central processing unit controls the input fabric design pattern correction unit to correct the input fabric design pattern by moving at least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt laterally.

[0073] (6) In a stretching system with an image-based automatic fabric correction function, the central processing unit compares the longitudinal spacing of the reference design pattern image and the longitudinal spacing of the output fabric design pattern image. When the comparison result exceeds a predetermined setting range, the central processing unit controls the input fabric design pattern correction unit to correct the input fabric design pattern by adjusting the rotation speed of at least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt.

[0074] (7) In a stretching system with image-based automatic fabric correction function, the central processing unit compares the reference design pattern image and the discharge fabric design pattern image. When distortion of the discharge fabric design pattern image occurs, the input fabric design pattern correction unit controls the input fabric design pattern to correct the input fabric design pattern by adjusting either the rotation speed of the first fabric transfer conveyor belt or the rotation speed of the second fabric transfer conveyor belt in an increasing or decreasing manner.

[0075] (8) In a stretching system with image-based automatic fabric correction function, control of the input fabric design pattern correction unit by means of the central processing unit can be performed by machine learning methods.

[0076] (9) In the automatic fabric correction method of the image-based tenter frame system, it includes: a reference design pattern image input step for inputting a reference design pattern image; a fabric discharge design pattern image acquisition step for obtaining a fabric discharge design pattern image of the discharged fabric discharged from the tenter frame; a fabric discharge design pattern deformation judgment step for comparing the input reference design pattern image and the obtained fabric discharge design pattern image, and judging that the fabric discharge design pattern is deformed when the comparison result exceeds a predetermined set range; and an input fabric design pattern correction step for adjusting at least one of the transverse width and the supply speed of the input fabric fed into the tenter frame according to the deformation judgment of the fabric discharge design pattern, thereby correcting the input fabric design pattern.

[0077] (10) In the automatic fabric correction method of the image-based tenter system, the fabric design pattern deformation judgment step includes a lateral deformation judgment step, which compares the lateral spacing of the reference design pattern image and the lateral spacing of the fabric design pattern image. When the comparison result exceeds the predetermined set range, it is judged that the fabric design pattern is laterally deformed. The fabric design pattern correction step includes a lateral correction step for the fabric design pattern, which adjusts the lateral width of the fabric fed into the tenter machine according to the lateral deformation judgment of the fabric design pattern, thereby correcting the fabric design pattern.

[0078] (11) In the automatic fabric correction method of the image-based tenter system, the fabric design pattern deformation judgment step includes a longitudinal deformation judgment step, which compares the longitudinal spacing of the reference design pattern image and the longitudinal spacing of the fabric design pattern image. When the comparison result exceeds the predetermined set range, it is judged that the fabric design pattern of the fabric is longitudinally deformed. The fabric design pattern correction step includes a fabric design pattern longitudinal correction step, which adjusts the supply speed of the fabric fed into the tenter machine according to the longitudinal deformation judgment of the fabric design pattern of the fabric, thereby adjusting the longitudinal width and thus correcting the fabric design pattern of the fabric.

[0079] (12) In the automatic fabric correction method of the image-based tenter frame system, the fabric design pattern deformation judgment step includes a distortion deformation judgment step, comparing the reference design pattern image and the fabric design pattern image, and judging that the fabric design pattern is distorted when distortion occurs in the fabric design pattern image. The fabric design pattern correction step includes an fabric design pattern distortion correction step, and adjusting the distortion by increasing or decreasing either the supply speed of the left and right edges of the fabric fed into the tenter frame, based on the fabric design pattern distortion deformation judgment, thereby correcting the fabric design pattern.

[0080] Explanation of reference numerals in the attached figures

[0081] 100: Tensioning system; 110: Fabric supply unit; 120: Fabric design pattern correction unit; 130: Tensioner; 140: First scanning unit; 150: Discharged fabric cooling unit; 160: Second scanning unit; 200: Reference design pattern; 300: Fabric design pattern

Claims

1. A fabric stretching system with image-based automatic fabric correction function, wherein, include: tenter frame; A fabric design pattern correction unit is provided, located behind the tenter frame, for correcting the fabric design pattern of the fabric fed into the tenter frame. A first scanning unit, disposed in front of the tenter frame, is used to obtain an image of the design pattern of the fabric being discharged from the tenter frame by scanning the design pattern of the discharged fabric. as well as The central processing unit is used to communicate with the fabric design pattern correction unit and the first scanning unit. The central processing unit receives a reference design pattern image from the user and a fabric design pattern image from the first scanning unit. It compares the reference design pattern image and the fabric design pattern image. When the comparison result exceeds a predetermined range, it corrects the fabric design pattern by controlling the fabric design pattern correction unit and adjusting at least one of the lateral width and supply speed of the fabric. in, The fabric design pattern correction unit includes a fabric transfer conveyor belt. Fabric conveyor belts are spaced apart on the left and right sides where the fabric is fed in, including a first fabric conveyor belt and a second fabric conveyor belt that are independently controlled. The first fabric transfer uses a conveyor belt to move the fabric into the left edge. The second fabric transfer uses a conveyor belt to transfer the fabric into the right edge. At least one of the first and second fabric transfer conveyor belts can move laterally to adjust the lateral spacing of the fabric design pattern being fed in.

2. The fabric stretching system with image-based automatic fabric correction function according to claim 1, wherein, It also includes a fabric cooling section. The fabric cooling section is located between the tenter frame and the first scanning section.

3. The fabric stretching system with image-based automatic fabric correction function according to claim 1, wherein, At least one of the first and second fabric conveyor belts can adjust the supply speed of the fed fabric to adjust the longitudinal spacing of the fabric design pattern.

4. The fabric stretching system with image-based automatic fabric correction function according to claim 1, wherein, The central processing unit compares the lateral spacing of the reference design pattern image with the lateral spacing of the output fabric design pattern image. When the comparison result exceeds a predetermined set range, it controls the input fabric design pattern correction unit to correct the input fabric design pattern by laterally moving at least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt.

5. The fabric stretching system with image-based automatic fabric correction function according to claim 3, wherein, The central processing unit compares the longitudinal spacing of the reference design pattern image with the longitudinal spacing of the fabric design pattern image. When the comparison result exceeds a predetermined set range, it controls the fabric design pattern correction unit to correct the fabric design pattern by adjusting the rotation speed of at least one of the first fabric transfer conveyor belt and the second fabric transfer conveyor belt.

6. The fabric stretching system with image-based automatic fabric correction function according to claim 3, wherein, The central processing unit compares the reference design pattern image and the discharge fabric design pattern image. When distortion occurs in the discharge fabric design pattern image, it controls the input fabric design pattern correction unit to correct the input fabric design pattern by adjusting either the rotation speed of the first fabric transfer conveyor belt or the rotation speed of the second fabric transfer conveyor belt in an increasing or decreasing manner.

Images