A device for detecting defects in warp-knitted fabrics

Abstract

This utility model relates to the field of fabric processing technology and discloses a warp-knitted fabric defect detection device, including a base. Rotating guide rollers are installed on the upper surfaces of both ends of the base. A top plate is fixedly installed on the upper surface of the base, and a first electric push rod is fixedly installed on the outer surface of the top plate. A detection mechanism is installed at the lower end of the first electric push rod. The device eliminates defects at the four corners through alternating double-row detection, and simultaneously applies pressure during detection to create indentations on the fabric surface, facilitating rapid defect detection during subsequent processing. This warp-knitted fabric defect detection device, by setting up a top plate, a first electric push rod, and a detection mechanism, utilizes the first electric push rod to drive the detection mechanism to move, combined with the alternating double-row detection method, to effectively eliminate blind spots in the warp-knitted fabric detection process, ensuring that every area of ​​the fabric, especially the corners and edges, is fully inspected.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing technology, specifically to a device for detecting defects in warp-knitted fabrics. Background Technology

[0002] In the textile industry, warp-knitted fabrics are widely used in clothing, home textiles and other fields due to their advantages such as soft texture and stable structure. As the market's requirements for the quality of warp-knitted fabrics continue to increase, the detection of fabric defects has become a crucial link in the production process. Traditional warp-knitted fabric defect detection mostly relies on manual visual inspection. This method is not only inefficient, but also affected by workers' subjective factors and visual fatigue, which can easily lead to missed or false detections, making it difficult to meet the needs of large-scale production. In recent years, although some automated inspection equipment has emerged, utilizing technologies such as image recognition and sensors for defect detection, many problems still exist. For example, some inspection equipment has blind spots during the inspection process, making it difficult to comprehensively inspect the corners and edge areas of warp-knitted fabrics. Moreover, existing inspection equipment lacks intuitive and effective marking methods after detecting defects, making it difficult for staff to quickly locate defects during subsequent processing, which affects production efficiency and product quality. Therefore, developing a warp-knitted fabric defect detection device that can eliminate blind spots and facilitate defect marking is of great practical significance. Utility Model Content

[0003] The purpose of this invention is to provide a defect detection device for warp-knitted fabrics to solve the problems mentioned in the background art, such as the low efficiency and easy omissions and false detections of traditional manual inspection, and the blind spots and lack of effective defect marking methods of automated inspection equipment, which make it difficult to meet production needs and affect product quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a warp-knitted fabric defect detection device, comprising a base, rotating guide rollers mounted on the upper surfaces of both ends of the base, a top plate fixedly mounted on the upper surface of the base, and a first electric push rod fixedly mounted on the outer surface of the top plate, wherein a detection mechanism is provided at the lower end of the first electric push rod, which eliminates the detection of the four corners by means of double-row alternating detection, and simultaneously forms indentations on the fabric surface by means of pressure during the detection process, so as to facilitate the rapid detection of defects by the staff during subsequent processing; The detection mechanism includes: a functional plate, which is fixedly disposed at the lower end of the first electric push rod, and a detection sensor is fixedly disposed on the lower surface of the functional plate; a diverter rod is fixedly connected to the lower end of the functional plate, and a connector is fixedly disposed at one end of the diverter rod; a piston cylinder is fixedly disposed on one side surface of the functional plate, and a connecting pipe is connected between the lower end of the piston cylinder and the connector; a second electric push rod is fixedly installed inside the upper end of the piston cylinder, and a piston plate is fixedly connected to the lower end of the second electric push rod. The detection mechanism further includes: a functional ring, which is fixedly disposed on the lower surface of the diverting rod, and a sliding imprinting ring is installed inside the lower end side surface of the functional ring; a guide tube is fixedly connected between the upper end of the functional ring and the diverting rod; a limit groove is formed on the outer surface of the imprinting ring; a sliding clamping plate is installed on the outer surface of the functional ring; a limit electric push rod is fixedly disposed on the outer surface of the functional ring where the clamping plate is located; and a controller is fixedly disposed on the outer surface of one end of the functional plate.

[0005] Preferably, the diverter rod is hollow, the lower end of the connecting pipe is connected to the connector, and the upper end of the connecting pipe is connected to the lower end of the piston cylinder.

[0006] By adopting the above technical solution, the hollow design of the diverter rod and the connecting structure of the connecting pipe can transmit the pressure inside the piston cylinder through the connecting pipe and the inside of the diverter rod to the bottom of the detection mechanism, providing a stable power transmission path for the indentation operation of the imprinting ring and ensuring that the pressure is applied evenly to the fabric surface.

[0007] Preferably, the upper end of the piston cylinder is designed to be open, and the piston cylinder and the piston plate are connected by sliding friction.

[0008] By adopting the above technical solution, the design of the upper opening of the piston cylinder and the sliding friction connection with the piston plate not only facilitates the second electric push rod to drive the piston plate to move up and down inside the cylinder, realizing flexible application and release of pressure, but also ensures the smoothness of piston movement and avoids the pressure transmission efficiency being affected by excessive frictional resistance.

[0009] Preferably, the functional ring and the detection sensor above it are designed concentrically, and the inner diameter of the functional ring is larger than the lower inner diameter of the detection sensor.

[0010] The above technical solution, with the functional ring and the detection sensor being concentric and having a larger inner diameter, ensures that the indentation position of the imprint ring corresponds perfectly with the detection area of ​​the detection sensor, avoiding inaccurate defect marking due to positional deviation. At the same time, it provides space for the sliding of the imprint ring, allowing it to cover the entire fabric area below the detection sensor.

[0011] Preferably, the embossing ring and the functional ring are connected by sliding friction, and a spring is connected between the embossing ring and the functional ring. The internal cavity of the functional ring where the embossing ring is located is penetrated by the lower end of the guide tube, and the upper end of the guide tube penetrates the inner surface of the diverter rod.

[0012] By adopting the above technical solution, the flow guide tube runs through the structure of the flow divider and the functional ring, realizing the direct transmission of pressure from the flow divider to the internal cavity of the functional ring, providing a stable power source for the downward pressing of the imprinting ring.

[0013] Preferably, one end of the card plate penetrates the inner surface of the functional ring, and the end of the card plate located inside the functional ring is engaged with the limiting groove. The end of the card plate located inside the functional ring is provided with an upward inclined surface. A spring is connected between the card plate and the functional ring, and the lower end of the limiting electric push rod is in contact with the outer surface of the card plate.

[0014] By adopting the above technical solution, the engaging structure of the card plate and the limiting groove, as well as the inclined surface design, can fix the imprinting ring in the functional ring by spring tension when not imprinting, thus preventing it from accidentally contacting the fabric. When a defect is detected and imprinting is required, the imprinting ring is pressed down by the inclined surface under pressure, and after the imprinting operation is completed, the card plate is re-engaged into the limiting groove under the action of the spring, and the limiting electric push rod is reset, realizing the automatic reset and fixation of the imprinting ring. The whole process does not require manual intervention, which improves the automation level and operational reliability of the device.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the warp-knitted fabric defect detection device: 1. By setting up a top plate, a first electric push rod, and a detection mechanism, the first electric push rod drives the detection mechanism to move. Combined with the double-row alternating detection method, it can effectively eliminate blind spots in the detection process of warp-knitted fabrics, ensuring that every area of ​​the fabric, especially the edges such as the four corners, can be fully detected. The detection sensors in the detection mechanism can accurately identify fabric defects. The cooperation of the diverting rod, piston cylinder, second electric push rod, and piston plate means that when a defect is detected, the second electric push rod pushes the piston plate to move inside the piston cylinder. The pressure is transmitted to the imprinting ring through the connecting pipe and the guide pipe, so that the imprinting ring forms an indentation on the fabric surface, which makes it convenient for staff to quickly find defects during subsequent processing. 2. The sliding fit between the functional ring and the embossing ring, along with the spring setting, ensures that the embossing ring can be flexibly adjusted according to the fabric surface condition, ensuring clear and accurate embossing. The setting of the limiting electric push rod and the clamping plate can fix the embossing ring when not performing embossing operations, preventing it from accidentally contacting the fabric. The entire device has a reasonable structural design, which not only improves the comprehensiveness and accuracy of defect detection in warp-knitted fabrics, but also enhances the efficiency of subsequent processing through intuitive embossing marking, effectively ensuring the product quality and production efficiency of warp-knitted fabrics. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection between the functional board and the detection sensor of this utility model; Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the connection between the functional board and the detection sensor of this utility model; Figure 5 This is a three-dimensional structural diagram of the cross-sectional view of the flow divider, connector and piston cylinder of this utility model; Figure 6 This is a three-dimensional structural diagram of the cross-sectional view of the connection between the functional ring, the embossing ring, and the guide tube of this utility model.

[0017] In the diagram: 1. Base; 2. Guide roller; 3. Top plate; 4. First electric push rod; 5. Functional plate; 6. Detection sensor; 7. Diverter rod; 8. Connector; 9. Piston cylinder; 10. Connecting pipe; 11. Second electric push rod; 12. Piston plate; 13. Functional ring; 14. Imprinting ring; 15. Guide pipe; 16. Limiting groove; 17. Clamping plate; 18. Limiting electric push rod; 19. Controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 This utility model provides a technical solution: a device for detecting defects in warp-knitted fabrics.

[0020] Example 1: This example discloses: a base 1, with rotating guide rollers 2 installed on the upper surfaces of both ends of the base 1, a top plate 3 fixedly installed on the upper surface of the base 1, and a first electric push rod 4 fixedly installed on the outer surface of the top plate 3. A detection mechanism is provided at the lower end of the first electric push rod 4, which eliminates the detection of the four corners by double-row alternating detection, and at the same time forms indentations on the fabric surface by applying pressure during the detection process, so as to facilitate the staff to quickly find defects during subsequent processing; The detection mechanism includes: a function plate 5, which is fixedly installed at the lower end of the first electric push rod 4, and a detection sensor 6 is fixedly installed on the lower surface of the function plate 5. A diverter rod 7 is fixedly connected to the lower end of the function plate 5, and a connector 8 is fixedly installed at one end of the diverter rod 7. A piston cylinder 9 is fixedly installed on the side surface of one end of the function plate 5, and a connecting pipe 10 is connected between the lower end of the piston cylinder 9 and the connector 8. A second electric push rod 11 is fixedly installed inside the upper end of the piston cylinder 9, and a piston plate 12 is fixedly connected to the lower end of the second electric push rod 11. The diverter rod 7 is hollow, the lower end of the connecting pipe 10 is connected to the connector 8, and the upper end of the connecting pipe 10 is connected to the lower end of the piston cylinder 9. The upper end of the piston cylinder 9 is open, and the piston cylinder 9 and the piston plate 12 are connected by sliding friction. Guide rollers 2 at both ends of the base 1 can stably guide the transmission path of the warp-knitted fabric, providing a reliable foundation for subsequent inspection. The first electric push rod 4 installed on the top plate 3 can flexibly adjust the height of the inspection mechanism to adapt to the inspection needs of warp-knitted fabrics of different thicknesses. The detection sensor 6 at the lower end of the functional plate 5 in the inspection mechanism, in conjunction with the double-row alternating detection method, effectively eliminates the detection dead angles in areas such as the four corners of the fabric, greatly improving the comprehensiveness and accuracy of the inspection. At the same time, the second electric push rod 11 drives the piston plate 12 to move in the piston cylinder 9, and transmits the pressure to the fabric surface through the connecting pipe 10, the connecting head 8 and the hollow diverting rod 7. When a defect is detected, an indentation is formed in time, which makes it convenient for staff to quickly find the defect location. Compared with the problem of traditional inspection equipment lacking effective marking, it significantly improves the efficiency of defect handling and effectively ensures the production quality of warp-knitted fabrics.

[0021] Example 2: This example discloses the following based on Example 1: The detection mechanism further includes: a functional ring 13, which is fixedly disposed on the lower surface of the diverting rod 7, and a sliding imprinting ring 14 is installed inside the lower side surface of the functional ring 13. A guide pipe 15 is fixedly connected between the upper end of the functional ring 13 and the diverting rod 7. A limiting groove 16 is opened on the outer surface of the imprinting ring 14. A sliding clamping plate 17 is installed on the outer surface of the functional ring 13, and a limiting electric push rod 18 is fixedly disposed on the outer surface of the functional ring 13 where the clamping plate 17 is located. A controller 19 is fixedly installed on the outer surface of one end of the functional plate 5. The functional ring 13 and the detection sensor 6 above it are concentrically designed, and the inner diameter of the functional ring 13 is larger than the lower inner diameter of the detection sensor 6. The impression ring 14 and the functional ring 13 are connected by sliding friction, and a spring is connected between the impression ring 14 and the functional ring 13. The cavity inside the functional ring 13 where the impression ring 14 is located is penetrated by the lower end of the guide tube 15, and the upper end of the guide tube 15 penetrates the inner surface of the diverter rod 7. One end of the clamping plate 17 penetrates the inner surface of the functional ring 13, and the end of the clamping plate 17 located inside the functional ring 13 is engaged with the limiting groove 16. The end of the clamping plate 17 located inside the functional ring 13 is provided with an upward inclined surface. A spring is connected between the clamping plate 17 and the functional ring 13. The lower end of the limiting electric push rod 18 is in contact with the outer surface of the clamping plate 17. The functional ring 13 is concentrically designed with the detection sensor 6, and its inner diameter is larger than the lower inner diameter of the detection sensor 6, ensuring precise correspondence between the imprinting operation and the detection area. The sliding fit and spring connection between the imprinting ring 14 and the functional ring 13 allow it to move flexibly downwards when under pressure, ensuring that appropriate pressure is applied to the fabric to form a clear indentation. When a defect is detected and the controller 19 receives an electrical signal, the internal pressure of the diverting rod 7 increases, and the internal pressure of the diverting rod 7 is transmitted to the interior of the functional ring 13 through the guide tube 15. Then, the lower end of the corresponding limit electric push rod 18 moves upwards to contact the limit of the clamping plate 17. The functional ring 13 slides downwards under pressure, and the imprinting ring 14 squeezes the inclined surface of the clamping plate 17 through the limit groove 16, so that the unrestricted clamping plate 17 can slide without hindering the downward movement of the imprinting ring 14. The imprinting ring 14 moves downwards to imprint on the fabric surface.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of warp fabric defect detection device, including base (1), the upper surface of both ends of the base (1) is equipped with the rotating guide roller (2), it is characterized by: The base (1) is fixedly provided with a top plate (3), and the outer surface of the top plate (3) is fixedly installed with a first electric push rod (4). The lower end of the first electric push rod (4) is provided with a detection mechanism, which eliminates the detection of the four corners by double-row alternating detection, and at the same time uses the pressure method during the detection process to form an indentation on the fabric surface, so as to facilitate the staff to quickly find defects during subsequent processing. The detection mechanism includes: a function plate (5), which is fixedly disposed at the lower end of the first electric push rod (4), and a detection sensor (6) is fixedly disposed on the lower surface of the function plate (5). A diverter rod (7) is fixedly connected to the lower end of the function plate (5), and a connector (8) is fixedly disposed at one end of the diverter rod (7). A piston cylinder (9) is fixedly disposed on one side surface of the function plate (5), and a connecting pipe (10) is connected between the lower end of the piston cylinder (9) and the connector (8). A second electric push rod (11) is fixedly installed inside the upper end of the piston cylinder (9), and a piston plate (12) is fixedly connected to the lower end of the second electric push rod (11).

2. The device for detecting defects in warp-knitted fabrics according to claim 1, characterized in that: The detection mechanism further includes: a functional ring (13), which is fixedly disposed on the lower surface of the diverting rod (7), and a sliding imprinting ring (14) is installed inside the lower side surface of the functional ring (13). A guide pipe (15) is fixedly connected between the upper end of the functional ring (13) and the diverting rod (7). A limit groove (16) is opened on the outer surface of the imprinting ring (14). A sliding clamping plate (17) is installed on the outer surface of the functional ring (13), and a limit electric push rod (18) is fixedly disposed on the outer surface of the functional ring (13) where the clamping plate (17) is located. A controller (19) is fixedly installed on the outer surface of one end of the functional plate (5).

3. The device for detecting defects in warp-knitted fabrics according to claim 1, characterized in that: The diverter rod (7) is hollow. The lower end of the connecting pipe (10) is connected to the connector (8), and the upper end of the connecting pipe (10) is connected to the lower end of the piston cylinder (9).

4. The device for detecting defects in warp-knitted fabrics according to claim 1, characterized in that: The upper end of the piston cylinder (9) is open, and the piston cylinder (9) and the piston plate (12) are connected by sliding friction.

5. The device for detecting defects in warp-knitted fabrics according to claim 2, characterized in that: The functional ring (13) and the detection sensor (6) above it are designed concentrically, and the inner diameter of the functional ring (13) is larger than the lower inner diameter of the detection sensor (6).

6. The device for detecting defects in warp-knitted fabrics according to claim 2, characterized in that: The embossing ring (14) and the functional ring (13) are connected by sliding friction, and a spring is connected between the embossing ring (14) and the functional ring (13). The cavity inside the functional ring (13) where the embossing ring (14) is located is penetrated by the lower end of the guide tube (15), and the upper end of the guide tube (15) penetrates the inner surface of the diverter rod (7).

7. The device for detecting defects in warp-knitted fabrics according to claim 2, characterized in that: One end of the card plate (17) penetrates the inner surface of the functional ring (13), and the card plate (17) is located inside the functional ring (13) and is engaged with the limiting groove (16). The card plate (17) is located inside the functional ring (13) and has an upward inclined surface. A spring is connected between the card plate (17) and the functional ring (13). The lower end of the limiting electric push rod (18) is in contact with the outer surface of the card plate (17).

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