Textile fabric sampling observation device

Abstract

The invention relates to the technical field of observation devices, and discloses a textile fabric sampling observation device which comprises an optical detector used for imaging and photographing the surface of a fabric, a cylinder internally provided with a circular cavity, and a plurality of blocks arranged in the cavity and uniformly distributed in the circumferential direction of the cavity, and first grooves are formed in the upper surfaces of the plurality of block bodies. When the fabric is unfolded and straightened, if the friction force of the contact surfaces of the block body and the plate body with the fabric changes and the tension is not uniform, the extrusion force of the plate body on the fabric can be adjusted through the adjusting assembly, so that the friction force of the plate body on the fabric is adjusted, and the fabric is restored to a balanced state; the situation that the surface of the fabric is pulled to be wrinkled and bent again due to uneven tension is avoided, and the accuracy of follow-up fabric observation is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of observation devices, and in particular to a textile fabric sampling and observation device. Background Art

[0002] Sampling and observing fabric physical properties, appearance quality (such as texture, color, and defects), or structure (such as warp and weft density and weave) is a crucial step in the production, quality inspection, and R&D of textile fabrics. To obtain accurate and reliable observations, the primary prerequisite is to fully, flatly, and wrinkle-freely unfold the fabric under test and securely secure it.

[0003] The existing device presses the textile fabric against the upper surface of multiple unfolding blocks, and then uses the friction between the unfolding blocks and the textile fabric to straighten and flatten the textile fabric as the unfolding blocks move around. Some textile fabrics have flocking prints on their surfaces (the pattern area is covered with short fiber fluff, which feels soft and velvety), so the roughness of this area is much higher than that of the smooth base fabric. When the roughness of the textile fabric changes, the friction between the unfolding blocks and the textile fabric will change. The change in friction causes the pulling force of each unfolding block on the textile fabric to change. The change in pulling force makes the surface of the textile fabric unevenly stressed, which is prone to wrinkles and bending, affecting the accuracy of subsequent textile fabric observations. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a textile fabric sampling and observation device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A textile fabric sampling and observation device is used for optical detection of the fabric surface, and the sampling and observation device comprises: Optical detector, used to take images of the fabric surface; The cylinder has a cavity formed therein, and the cavity is circular; A plurality of blocks are disposed inside the cavity and are evenly distributed along the circumference of the cavity, wherein the upper surfaces of the plurality of blocks are each provided with a first groove; A plurality of plates disposed inside the first slot; A pressure plate, the upper surface of which is provided with a hollow channel; The fabric is located between the block, the plate and the pressure plate, and can be squeezed by the pressure plate, so that the contact surfaces of the block, the plate and the fabric have friction. The block and the plate can be driven to move away from the center of the cavity, so that the fabric is stretched and flattened radiating from all sides by the tension provided by the friction. The several plates are arranged so that when one or more of the friction forces on the fabric changes, the plates can be driven to move along the axis of the cylinder, thereby changing the squeezing of the fabric and thus changing the magnitude of the friction force on the fabric.

[0006] As a further solution of the present invention, a plurality of holes are equidistantly penetrated through the circumferential outer surface of the cylinder, and a rod body is fixedly installed on the outer surface of the several blocks close to the inner wall of the cavity. The rod body is slidably installed with the inner wall of the hole, and the center line of the rod body passes through the center of the cavity.

[0007] As a further solution of the present invention, the depth dimension of the first groove is greater than the thickness dimension of the plate body, the width dimension of the first groove is greater than the width dimension of the plate body, a column is fixedly installed on the lower surface of the plate body, a through hole is opened at the bottom of the first groove, the column is slidably installed between the inner walls of the through hole, the center line of the column and the axis of the cavity are arranged in the same plane, and the center line of the column and the lower surface of the plate body are provided with an inclination angle.

[0008] As a further solution of the present invention, an adjustment component for adjusting the squeezing force of the plate on the fabric is provided between the block and the plate, and the adjustment component includes: A first tube, wherein a second groove is formed on the outer surface of the block near the inner wall of the cavity, the first tube is fixedly mounted on the bottom of the second groove, and a first air outlet is formed through the top of the first tube; A first piston plate is disposed inside the first cylinder and is slidably mounted on the inner wall of the first cylinder. A first rod is fixedly mounted on the upper surface of the first piston plate. The top end of the first rod passes through the top end of the first cylinder and abuts against the lower surface of the column. a constant-force magnetic spring disposed inside the first cylinder, wherein the bottom end of the constant-force magnetic spring is fixedly connected to the bottom wall of the first cylinder, and the top end of the constant-force magnetic spring abuts against the lower surface of the first piston plate; A second tube, wherein the upper surface of the rod body is provided with a groove, and the second tube is fixedly mounted on the bottom of the groove; a second piston plate disposed inside the second cylinder and slidably mounted on the inner wall of the second cylinder, a second rod being fixedly mounted on an end of the second piston plate away from the first cylinder, and a second air outlet being formed through the end of the second piston plate away from the first cylinder; A mounting block is disposed inside the groove and is slidably mounted on the inner wall of the groove. One end of the second rod passes through the end surface of the second tube and is fixedly connected to the mounting block. The guide post is arranged inside the groove, the bottom of the groove is penetrated by a through groove, the guide post is slidably installed with the inner wall of the through groove, and the top of the guide post is fixedly connected to the lower surface of the mounting block.

[0009] As a further solution of the present invention, the first piston plate divides the interior of the first cylinder into a first chamber at the top and a second chamber at the bottom, the constant force magnetic spring is arranged inside the second chamber, and a hose is fixedly connected to the outer surface of the first cylinder near the second chamber.

[0010] As a further solution of the present invention, the second piston plate divides the interior of the second cylinder into a third chamber and a fourth chamber. The third chamber is arranged at one end of the second cylinder close to the first cylinder. The other end of the hose is fixedly connected to the outer surface of the second cylinder. The second chamber is connected to the third chamber through the hose. The interior of the second chamber, the hose and the third chamber are filled with hydraulic oil.

[0011] As a further solution of the present invention, the outer surface of the cylinder is provided with a driving assembly for driving the block and the plate to move away from the center of the cavity, and the driving assembly includes: A circular plate is rotatably mounted on the outer circumferential surface of the cylinder. A plurality of guide grooves are equidistantly formed on the upper surface of the circular plate in the circumferential direction. The guide posts penetrate the through grooves and are slidably mounted on the inner walls of the guide grooves. The cylinder is arranged on the lower surface of the cylinder, one end of the cylinder is rotatably connected to the lower surface of the cylinder, and the telescopic end of the cylinder is rotatably connected to the lower surface of the circular ring plate.

[0012] As a further solution of the present invention, a magnetic block is fixedly installed on the bottom wall of the cavity, and the pressure plate is magnetic. The pressure plate is configured so that when the magnetic block magnetically attracts the pressure plate, the pressure plate can press the fabric on the upper surface of the block and the plate.

[0013] As a further solution of the present invention, the size of the hollow channel of the pressing plate is smaller than the outer dimensions of the magnetic block, and the pressing plate is configured to completely cover the cavity.

[0014] As a further solution of the present invention, the guide groove consists of a straight groove and an oblique groove, the center line of the straight groove passes through the center of the cavity, and an angle is provided between the oblique groove and the straight groove.

[0015] When the fabric is unfolded and straightened, if the friction between the block and the plate and the contact surface of the fabric changes, resulting in uneven pulling force, the squeezing force of the plate on the fabric can be adjusted by adjusting the component, thereby adjusting the size of the friction force of the plate on the fabric to restore it to a balanced state, avoiding uneven pulling force that causes the surface of the fabric to be wrinkled and bent again, and ensuring the accuracy of subsequent fabric observations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a textile fabric sampling and observation device proposed by the present invention; Figure 2 This is a schematic diagram of the drive component structure of a textile fabric sampling and observation device proposed by the present invention; Figure 3 This is a schematic diagram of the explosive structure of a textile fabric sampling and observation device proposed by the present invention; Figure 4 This is a schematic diagram of a circular ring plate of a textile fabric sampling and observation device proposed by the present invention; Figure 5 This is a bottom-up schematic diagram of a circular ring plate of a textile fabric sampling and observation device proposed by the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram in the middle; Figure 7 This is a schematic diagram of the cylinder of a textile fabric sampling and observation device proposed by the present invention; Figure 8 This is a schematic diagram of a plate of a textile fabric sampling and observation device proposed by the present invention; Figure 9 This is a block diagram of a textile fabric sampling and observation device proposed by the present invention; Figure 10 This is a block cross-sectional schematic diagram of a textile fabric sampling and observation device proposed by the present invention; Figure 11 This is a schematic diagram of the adjustment components of a textile fabric sampling and observation device proposed by the present invention; Figure 12 This is a schematic cross-sectional view of the first tube of a textile fabric sampling and observation device proposed by the present invention.

[0017] In the picture: 100. Optical detector; 200, fabric; 300, cylinder; 310, cavity; 320, socket; 400, press plate; 500, block; 510, rod; 511, groove; 512, through groove; 520, first groove; 530, second groove; 540, through hole; 600, plate; 610, column; 700, adjustment assembly; 710, first cylinder; 711, first chamber; 712, second chamber; 713, hose; 720, first piston plate; 721, first rod; 730, mounting block; 740, constant-force magnetic spring; 750, second cylinder; 751, third chamber; 752, fourth chamber; 760, second piston plate; 761, second rod; 770, guide post; 800, driving assembly; 810, cylinder; 820, annular plate; 821, guide groove; 900. Magnetic block. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] Since the flocking print on the surface of the textile fabric is rougher than the smooth base fabric, the friction coefficient between it and the contact surface of the unfolding block will be larger, so the friction between the two will also be larger. The change in friction causes the pulling force of each unfolding block on the textile fabric to change. In order to solve this problem, the present application proposes a textile fabric sampling and observation device for optical detection of the surface of the fabric 200, such as Figure 3 As shown, it includes: an optical detector 100, a cylinder 300, several plates 600 and a pressing plate 400. Figure 1 As shown, the optical detector 100 is provided with an optical detection lens inside, which can take pictures of the surface of the fabric 200, and then the user can observe and analyze the pictures, thereby sampling and observing the surface of the fabric 200 and detecting the quality of the fabric 200. Figure 1 and Figure 3 As shown, the barrel 300 is arranged on the table of the optical detector 100, directly below the optical detection lens. A cavity 310 is opened inside the barrel 300, and the cavity 310 is arranged in a circular shape. A plurality of blocks 500 are arranged inside the cavity 310 and are evenly distributed along the circumferential direction of the cavity 310. The upper surfaces of the plurality of blocks 500 are all provided with a first groove 520, and a plurality of plates 600 are respectively arranged inside the plurality of first grooves 520, as shown in FIG. Figure 3 As shown, when sampling and observing the fabric 200, the user places the sample of the fabric 200 to be observed on the upper surface of the plate 600 and the block 500, and then presses the fabric 200 with the pressing plate 400 so that the fabric 200 is pressed tightly between the block 500, the plate 600 and the pressing plate 400. This device facilitates the rapid fixation of the position of the fabric 200 to be observed. In order for the plate 600 to be able to move up and down in the depth direction of the first groove 520, as shown in FIG. Figure 8As shown, the depth dimension of the first groove 520 is greater than the thickness dimension of the plate body 600, and a column 610 is fixedly installed on the lower surface of the plate body 600. A through hole 540 is provided at the bottom of the first groove 520. The column 610 is slidably installed between the inner walls of the through hole 540, so that the plate body 600 can move up and down in the depth direction of the first groove 520. When the fabric 200 is not observed, the upper surface of the plate body 600 is higher than the upper surface of the block body 500. When the pressing plate 400 presses the plate body 600 downward, the plate body 600 moves toward the bottom of the first groove 520 until its upper surface is flush with the upper surface of the block body 500. In order to facilitate the observation of the surface of the fabric 200, a hollow channel is provided on the upper surface of the pressing plate 400. The hollow channel is located directly below the optical detection lens, so that the optical detection lens can image and take pictures of the fabric 200 in the hollow channel area through the hollow channel. As shown Figure 3 As shown, in order to make the fabric 200 take a clear picture, the fabric 200 needs to be flattened and straightened. Since the fabric 200 is pressed on the block 500 and the plate 600 by the pressing plate 400, the fabric 200 generates friction with the contact surface of the block 500 and the plate 600 under the pressure of the pressing plate 400. The block 500 and the plate 600 can be driven (the detailed driving method is described in detail below) to move away from the center of the cavity 310, so that the fabric 200 is straightened and flattened radiating from the friction force to the surrounding area, which is convenient for subsequent sampling and observation.

[0020] It should be noted that because the contact area between each block 500, plate 600 and fabric 200 is the same, when the block 500 and plate 600 are straightened and flattened under friction, the force on the fabric 200 in all directions is uniform, so the fabric 200 will not be pulled out of position. At the same time, when pulling, the block 500 and plate 600 slide relative to the lower surface of the fabric 200.

[0021] In order to limit the movement direction of the block 500 and the plate 600, as shown in FIG. Figure 7 A plurality of insertion holes 320 are equidistantly formed on the circumferential outer surface of the cylinder 300. Rods 510 are fixedly mounted on the outer surfaces of several blocks 500 close to the inner wall of the cavity 310. The rods 510 are slidably mounted on the inner wall of the insertion holes 320. The center line of the rods 510 passes through the center of the cavity 310. The rods 510 and the insertion holes 320 are both square in shape to prevent the blocks 500 from twisting. This arrangement allows the blocks 500 and the plate 600 to move only radially along the cavity 310.

[0022] Since the contact surface between the block 500 and the plate 600 and the fabric 200 may be a flocked printed surface, the roughness of this surface is much greater than that of the base fabric next to it, resulting in a large friction force at the contact position between the block 500, the plate 600 and the flocked printed surface of the fabric 200. The change in friction force causes the block 500 and the plate 600 to exert uneven pulling force on the fabric 200, which is prone to wrinkles and bends. Therefore, several plates 600 are configured so that when one or more of the plates 600 exert a different friction force on the fabric 200, the plates 600 can be driven to move along the axis of the cylinder 300, thereby changing the size of the squeezing force on the fabric 200 and thus changing the size of the friction force on the fabric 200. In order to enable the plate 600 to adjust the squeezing force on the fabric 200 in real time, such as Figure 8 As shown, an adjustment assembly 700 for adjusting the squeezing force of the plate 600 on the fabric 200 is provided between the block 500 and the plate 600. The adjustment assembly 700 includes: a first cylinder 710, a first piston plate 720, a constant force magnetic spring 740, a second cylinder 750, a second piston plate 760, a mounting block 730 and a guide post 770. Figure 9 As shown, a second groove 530 is provided on the outer surface of the block 500 near the inner wall of the cavity 310, the first cylinder 710 is fixedly installed at the bottom of the second groove 530, the first piston plate 720 is arranged inside the first cylinder 710 and is slidably installed with the inner wall of the first cylinder 710, and a first rod 721 is fixedly installed on the upper surface of the first piston plate 720, and the top of the first rod 721 passes through the top of the first cylinder 710 and abuts against the lower surface of the column 610, and a constant force magnetic spring 740 (a constant force magnetic spring is a special device that combines magnetic force and mechanical structure, which can provide an approximately constant output force (tension or thrust) throughout the entire working stroke range) is arranged inside the first cylinder 710, and the bottom end of the constant force magnetic spring 740 is fixedly connected to the bottom wall of the first cylinder 710, and the top of the constant force magnetic spring 740 abuts against the lower surface of the first piston plate 720. Through this arrangement, as shown in FIG. Figure 10 As shown, when the plate body 600 is pressed downward by the pressure plate 400, the plate body 600 presses the first rod 721 downward through the column 610, and the first rod 721 drives the first piston plate 720 to move downward to compress the constant force magnetic spring 740, and then a constant elastic force is applied to the first piston plate 720 through the constant force magnetic spring 740. This constant elastic force is transmitted to the plate body 600 through the first rod 721 and the column 610, so that the plate body 600 squeezes the fabric 200 located between it and the pressure plate 400 with a constant extrusion force, so that there is a constant static friction force between the plate body 600 and the fabric 200.

[0023] like Figure 10 and Figure 12As shown, when the first piston plate 720 moves downward, because the first piston plate 720 divides the interior of the first cylinder 710 into a first chamber 711 at the top and a second chamber 712 at the bottom, the constant force magnetic spring 740 is arranged inside the second chamber 712, and the outer surface of the first cylinder 710 close to the second chamber 712 is fixedly connected with a hose 713, and because the upper surface of the rod body 510 is provided with a groove 511, the second cylinder 750 is fixedly installed at the bottom of the groove 511, and the second piston plate 760 is slidably installed between the inner walls of the second cylinder 750, and the second piston plate 760 divides the interior of the second cylinder 750 into a third chamber 751 and a fourth chamber 752, and the third chamber 751 is arranged at the bottom of the second cylinder 750 is close to one end of the first cylinder 710, and the other end of the hose 713 is fixedly connected to the outer surface of the second cylinder 750. The second chamber 712 is connected to the third chamber 751 through the hose 713. The third chamber 751, the second chamber 712 and the hose 713 are filled with hydraulic oil. Therefore, when the first piston plate 720 moves downward, the hydraulic oil in the second chamber 712 is compressed, and the hydraulic oil flows out through the liquid outlet end of the hose 713 and enters the third chamber 751. The volume of the hydraulic oil in the third chamber 751 increases, which drives the second piston plate 760 to move close to the fourth chamber 752 and compress the space of the fourth chamber 752. At this time, since the constant force magnetic spring 740 is compressed and maintained as Figure 12 In this state, the internal pressure of the second chamber 712 is also balanced with that of the third chamber 751 through the hose 713, so the first piston plate 720 and the second piston plate 760 are stationary relative to the rod body 510. In addition, the second piston plate 760 is fixedly mounted with the second rod 761 at one end away from the first cylinder 710, and one end of the second rod 761 passes through the end surface of the second cylinder 750 and is fixedly mounted with a mounting block 730. The mounting block 730 is arranged inside the groove 511 and is slidably mounted on the inner wall of the groove 511. A guide post 770 is fixedly mounted on the lower surface of the mounting block 730. The guide post 770 is arranged inside the groove 511, and the bottom of the groove 511 is penetrated by a through groove 512. The guide post 770 is slidably mounted on the inner wall of the through groove 512, so the guide post 770 is also stationary relative to the rod body 510.

[0024] When the block 500, the plate 600 and the un-flocking printed surface of the fabric 200 are in contact, because the static friction force is fixed, the first piston plate 720 and the second piston plate 760 are stationary relative to the rod body 510. When the guide column 770 is driven (the specific driving method is detailed below) to slide along the inner wall of the groove 511 away from the pressure plate 400, the guide column 770 drives the rod body 510 to slide away from the pressure plate 400 through the mounting block 730, the second rod 761 and the second piston plate 760. The rod body 510 will drive the block 500 and the plate 600 to move away from the pressure plate 400. At this time, the block 500 and the plate 600 will slide relative to the lower surface of the fabric 200, and the fabric 200 will be flattened by the tension of the block 500 and the plate 600. At this time, the guide column 770 will be subjected to a reverse tension of the same magnitude. When the block 500 and the plate 600 move to the surface of the flocked printed fabric 200, the friction coefficient increases due to the increase in roughness. At this time, the friction force of the block 500 and the plate 600 on the fabric 200 increases instantly, causing the pulling force to increase instantly. This pulling force will be fed back to the guide post 770, and the reverse pulling force on the guide post 770 will also increase. Because the force provided by the constant force magnetic spring 740 is constant, the increased reverse pulling force of the guide post 770 will cause the hydraulic oil in the second chamber 712, the hose 713 and the third chamber 751 to be in a negative pressure state through the second piston plate 760. This negative pressure causes the first piston plate 720 to be pressed downward by the atmospheric pressure, thereby causing the first piston plate 720 presses the constant force magnetic spring 740 downward, reducing the squeezing force of the constant force magnetic spring 740 on the plate 600, and at the same time, reducing the friction of the block 500 and the plate 600 on the flocking printing area of ​​the fabric 200 until the friction with the other blocks 500 and the plate 600 and the fabric 200 is rebalanced. When the fabric 200 is unfolded and straightened, if the friction of the contact surface between the block 500 and the plate 600 and the fabric 200 changes, resulting in uneven tension, the friction can be adjusted automatically to restore the balance state, avoiding uneven tension causing the surface of the fabric 200 to be wrinkled and bent again, thereby ensuring the accuracy of subsequent observations of the fabric 200. In order to ensure the normal circulation of air in the first cavity 711 and the fourth cavity 752, a first air outlet is provided through the top of the first cylinder 710, and a second air outlet is provided through the end of the second piston plate 760 away from the first cylinder 710.

[0025] When the operator presses the fabric 200 onto the upper surface of the block 500 and the plate 600 with the pressing plate 400, in order to make the pressing plate 400 press the fabric 200 tightly, as shown in FIG. Figure 3As shown, a magnetic block 900 is fixedly mounted on the bottom wall of the cavity 310. The hollow channel size of the pressing plate 400 is smaller than the outer dimensions of the magnetic block 900. The pressing plate 400 is magnetic and is configured so that when the magnetic block 900 magnetically attracts the pressing plate 400, the pressing plate 400 can press the fabric 200 against the upper surfaces of the block 500 and the plate 600. The pressing plate 400 is configured to completely cover the cavity 310 and is restricted from moving inside the cavity 310. In order to allow the fabric 200 to slide relative to each other between the contact surfaces of the pressing plate 400 and the magnetic block 900 when straightened and flattened, the friction between the pressing plate 400 and the magnetic block 900 on the fabric 200 must be small. Therefore, the roughness of the contact surfaces of the pressing plate 400, the magnetic block 900 and the fabric 200 is less than Ra 0.2, and the upper surface of the magnetic block 900 is arranged in the same plane as the upper surface of the block 500.

[0026] The magnetic attraction of the magnetic block 900 to the pressing plate 400 allows the pressing plate 400 to exert sufficient pressure to press the fabric 200 against the upper surface of the block 500 and the plate 600. If the fabric 200 has bends and wrinkles on its surface, it is easy to be folded and pressed between the pressing plate 400 and the magnetic block 900. The fabric 200 in the folded area is thicker, causing the pressing plate 400 to be raised to a certain height, so that the contact surfaces between the block 500, the plate 600 and the fabric 200 cannot be fully contacted. As a result, when the fabric 200 is subsequently unfolded, the plate 600 cannot adjust the friction between it and the fabric 200 in real time. In order to solve this problem, Figure 10 As shown, the center line of the column 610 and the axis of the cavity 310 are arranged in the same plane, and the center line of the column 610 and the lower surface of the plate 600 are provided with an inclination angle of 15°. Through the cooperation of the column 610 and the through hole 540, when the pressure plate 400 presses down the fabric 200, when the plate 600 moves downward along the axial direction of the cavity 310, since the width dimension of the first groove 520 is greater than the width dimension of the plate 600, the plate 600 will also expand outward along the radial direction of the cavity 310. Through the radial outward expansion movement of the plate 600 along the cavity 310, the fabric 200 can be straightened and expanded in advance when it is pressed against the block 500 and the upper surface of the plate 600, so as to avoid the fabric 200 being folded between the pressure plate 400 and the magnetic block 900 when pressed.

[0027] In order to drive the guide post 770 to slide along the inner wall of the groove 511 away from the pressing plate 400, so that the guide post 770 drives the block 500 and the plate 600 to move away from the center of the cavity 310 to flatten and straighten the fabric 200, a driving component 800 is provided on the outer surface of the cylinder 300. Figure 5As shown, the driving assembly 800 includes: a circular plate 820 and a cylinder 810, the circular plate 820 is rotatably mounted on the circumferential outer surface of the cylinder 300, and a plurality of guide grooves 821 are equidistantly provided on the circumferential direction of the upper surface of the circular plate 820, and the guide column 770 passes through the through groove 512 and is slidably mounted on the inner wall of the guide groove 821; the cylinder 810 is arranged on the lower surface of the cylinder 300, and one end of the cylinder 810 is rotatably connected to the lower surface of the cylinder 300, and the telescopic end of the cylinder 810 is rotatably connected to the lower surface of the circular plate 820, and the circular plate 820 is driven to rotate by the extension movement of the telescopic end of the cylinder 810, and the circular plate 820 drives the guide groove 821 to move, and the cooperation between the guide groove 821 and the guide column 770 drives the block 500 and the plate body 600 to move away from the center of the cavity 310 to flatten and straighten the fabric 200. Through this device, the fabric 200 can be straightened and flattened, which is convenient for subsequent detection.

[0028] In order to detect whether the fabric 200 has a folded area pressed between the pressing plate 400 and the magnetic block 900, Figure 5 As shown, the guide groove 821 consists of a straight groove and an oblique groove. The center line of the straight groove passes through the center of the cavity 310. An angle is set between the oblique groove and the straight groove. When the plate body 600 is pressed down and moves downward along the axial direction of the cavity 310, the plate body 600 presses the hydraulic oil inside the second cavity 712 through the first rod 721 and the first piston plate 720 to enter the interior of the third cavity 751 through the hose 713. The hydraulic oil pushes the second piston plate 760 to move away from the pressure plate 400. Figure 6 As shown, the second piston plate 760 drives the guide post 770 from the straight groove of the guide groove 821 to the connection position with the inclined groove through the second rod 761. When the guide post 770 can slide correctly to the inclined groove section of the guide groove 821, the circular ring plate 820 can rotate normally when the circular ring plate 820 is subsequently rotated; if there is fabric 200 folded and pressed between the pressure plate 400 and the magnetic block 900, at this time, because the fabric 200 in the folding area is thicker, the pressure plate 400 is raised to a certain height, and the pressure plate 400 cannot press the plate body 600 down to the point where its upper surface is flush with the upper surface of the block 500, that is, the upper surface of the plate body 600 will be higher than the upper surface of the block 500, and the guide post 770 does not slide from the straight groove section of the guide groove 821 to the inclined groove section. When the circular ring plate 820 rotates, it is limited and cannot rotate. This setting can remind the operator that the fabric 200 is folded between the pressure plate 400 and the magnetic block 900.

[0029] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A textile fabric sampling and observation device for optically detecting the surface of a fabric (200), characterized in that: The sampling observation device comprises: An optical detector (100) for imaging and photographing the surface of the fabric (200); The cylinder (300) has a cavity (310) formed therein, and the cavity (310) is arranged in a circular shape; A plurality of blocks (500) are disposed inside the cavity (310) and are evenly distributed along the circumference of the cavity (310), and a first groove (520) is formed on the upper surface of each of the blocks (500); A plurality of plates (600) disposed inside the first groove (520); A pressing plate (400) having a hollow channel formed on its upper surface; The fabric (200) is located between the block (500), the plate (600) and the pressing plate (400), and can be squeezed by the pressing plate (400), so that the contact surfaces of the block (500), the plate (600) and the fabric (200) have friction. The block (500) and the plate (600) can be driven to move away from the center of the cavity (310), so that the fabric (200) is stretched and flattened radiatingly around it by the pulling force provided by the friction. The plurality of plates (600) are configured so that when one or more of the plates (600) exert a friction force on the fabric (200) that changes, the plates (600) can be driven to move along the axis of the cylinder (300), thereby changing the squeezing of the fabric (200) and thus changing the magnitude of the friction force on the fabric (200).

2. The textile fabric sampling and observation device according to claim 1, characterized in that: The cylindrical body (300) is provided with a plurality of jacks (320) equidistantly through its circumferential outer surface. Rods (510) are fixedly mounted on the outer surfaces of the plurality of blocks (500) on the side close to the inner wall of the cavity (310). The rods (510) are slidably mounted on the inner wall of the jacks (320), and the centerline of the rods (510) passes through the center of the cavity (310).

3. The textile fabric sampling and observation device according to claim 1, characterized in that: The depth dimension of the first groove (520) is greater than the thickness dimension of the plate body (600), and the width dimension of the first groove (520) is greater than the width dimension of the plate body (600). A column (610) is fixedly installed on the lower surface of the plate body (600), and a through hole (540) is opened at the bottom of the first groove (520). The column (610) is slidably installed between the inner walls of the through hole (540). The center line of the column (610) and the axis of the cavity (310) are arranged in the same plane, and the center line of the column (610) and the lower surface of the plate body (600) are provided with an inclination angle.

4. The textile fabric sampling and observation device according to claim 2, characterized in that: An adjustment component (700) for adjusting the squeezing force of the plate (600) on the fabric (200) is provided between the block (500) and the plate (600). The adjustment component (700) comprises: A first tube (710), wherein a second groove (530) is provided on the outer surface of the block (500) on the side close to the inner wall of the cavity (310), the first tube (710) is fixedly mounted on the bottom of the second groove (530), and a first air outlet is provided through the top end of the first tube (710); A first piston plate (720) is disposed inside the first cylinder (710) and is slidably mounted on the inner wall of the first cylinder (710). A first rod (721) is fixedly mounted on the upper surface of the first piston plate (720). The top end of the first rod (721) passes through the top end of the first cylinder (710) and abuts against the lower surface of the column (610). a constant-force magnetic spring (740) disposed inside the first cylinder (710), wherein the bottom end of the constant-force magnetic spring (740) is fixedly connected to the bottom wall of the first cylinder (710), and the top end of the constant-force magnetic spring (740) abuts against the lower surface of the first piston plate (720); A second tube (750), wherein a groove (511) is formed on the upper surface of the rod body (510), and the second tube (750) is fixedly mounted on the bottom of the groove (511); a second piston plate (760) disposed inside the second cylinder (750) and slidably mounted on the inner wall of the second cylinder (750); a second rod (761) is fixedly mounted on one end of the second piston plate (760) away from the first cylinder (710); and a second air outlet is formed through the end of the second piston plate (760) away from the first cylinder (710); A mounting block (730) is disposed inside the groove (511) and is slidably mounted on the inner wall of the groove (511); one end of the second rod (761) passes through the end surface of the second tube (750) and is fixedly connected to the mounting block (730); A guide post (770) is arranged inside the groove (511), and a through groove (512) is provided through the bottom of the groove (511). The guide post (770) is slidably mounted on the inner wall of the through groove (512), and the top end of the guide post (770) is fixedly connected to the lower surface of the mounting block (730).

5. The textile fabric sampling and observation device according to claim 4, characterized in that: The first piston plate (720) divides the interior of the first cylinder (710) into a first chamber (711) at the top and a second chamber (712) at the bottom. The constant force magnetic spring (740) is arranged inside the second chamber (712). A hose (713) is fixedly connected to the outer surface of the first cylinder (710) near the second chamber (712).

6. The textile fabric sampling and observation device according to claim 5, characterized in that: The second piston plate (760) divides the interior of the second cylinder (750) into a third chamber (751) and a fourth chamber (752). The third chamber (751) is arranged at one end of the second cylinder (750) close to the first cylinder (710). The other end of the hose (713) is fixedly connected to the outer surface of the second cylinder (750). The second chamber (712) is connected to the third chamber (751) through the hose (713). The interiors of the second chamber (712), the hose (713) and the third chamber (751) are filled with hydraulic oil.

7. The textile fabric sampling and observation device according to claim 4, characterized in that: The outer surface of the cylinder (300) is provided with a driving assembly (800) for driving the block (500) and the plate (600) to move away from the center of the cavity (310). The driving assembly (800) includes: A circular plate (820) is rotatably mounted on the outer circumferential surface of the cylinder (300), a plurality of guide grooves (821) are equidistantly formed on the upper surface of the circular plate (820) in the circumferential direction, and the guide pillars (770) are slidably mounted through the through grooves (512) and the inner walls of the guide grooves (821); The cylinder (810) is arranged on the lower surface of the cylinder (300), one end of the cylinder (810) is rotatably connected to the lower surface of the cylinder (300), and the telescopic end of the cylinder (810) is rotatably connected to the lower surface of the circular plate (820).

8. The textile fabric sampling and observation device according to claim 1, characterized in that: A magnetic block (900) is fixedly mounted on the bottom wall of the cavity (310), and the pressing plate (400) is magnetic. The pressing plate (400) is configured so that when the magnetic block (900) magnetically attracts the pressing plate (400), the pressing plate (400) can press the fabric (200) onto the upper surfaces of the block (500) and the plate (600).

9. The textile fabric sampling and observation device according to claim 8, characterized in that: The size of the hollow channel of the pressing plate (400) is smaller than the outer dimensions of the magnetic block (900), and the pressing plate (400) is configured to completely cover the cavity (310).

10. The textile fabric sampling and observation device according to claim 7, characterized in that: The guide groove (821) consists of a straight groove and an oblique groove, the center line of the straight groove passes through the center of the cavity (310), and an angle is provided between the oblique groove and the straight groove.

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