Cotton knitting yarn defect online detection and inhibition device

Abstract

The utility model discloses a cotton knitting yarn defect on-line detection and inhibition device, which relates to the cotton knitting yarn defect detection field, and comprises a base plate and a light shielding box arranged on the upper end of the base plate, the upper end of the light shielding box is provided with a detection camera, two ends of the light shielding box are provided with through holes, and yarns pass through the through holes. According to the cotton knitting yarn defect online detection and inhibition device, when a winding roller is placed on a fixing frame, a cutting plate is embedded, limiting blocks on the left side and the right side of the cutting plate are embedded into the fixing frame, at the moment, a locking block is extruded along with the limiting blocks, and due to the inclination of the locking block, the locking block moves towards the outer side till the locking block corresponds to an inclined groove; under the action of a reset spring, a locking block is automatically clamped in an inclined groove so as to be fixed, on the contrary, when a pull rod is pulled, a cutting plate can be taken down, at the moment, a winding roller can be taken down, the winding roller can be quickly disassembled and assembled, and the placement operation of a worker is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of cotton knitted yarn defect detection technology, specifically to an online detection and suppression device for cotton knitted yarn defects. Background Technology

[0002] The online detection and suppression device for defects in cotton knitted yarn is a set of equipment used to detect surface defects of cotton yarn in real time during the spinning or weaving process and to automatically suppress or eliminate defects. It can effectively detect and suppress defects in cotton knitted yarn.

[0003] In existing technologies, cotton knitted yarn is prone to defects due to wear and tear during the manufacturing process. These defects typically need to be judged by the naked eye, which places a heavy strain on the workers' eyes.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN218995172U) discloses a knitted sweater defect inspection machine. The machine includes a support base with a rotatable rotating platform. A rotary power connector is coaxially mounted at the interface between the support base and the rotating platform. Two first light-transmitting covers are symmetrically arranged on the upper surface of the rotating platform. An LED light source mounted on the rotating platform is housed within each first light-transmitting cover and electrically connected to the rotary power connector. An annular slide rail is also provided within the rotating platform covered by the first light-transmitting covers, through which a light-changing cover slides. A push handle extending laterally to the outside of the rotating platform is provided on the outer surface of the light-changing cover. Driving the push handle upward causes the light-changing cover to rise synchronously, enclosing the LED light source within it. This solution achieves convenient switching of light source color through the above structure, effectively adapting to the inspection needs of various colored knitted yarns. It also reduces the visual burden on workers inspecting knitted sweaters and improves inspection efficiency.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, when detecting defects in cotton knitted yarn, the yarn gets tangled on the rollers as it is being conveyed. The rollers require tools to be removed during installation and removal, making the overall operation quite cumbersome. Utility Model Content

[0006] The purpose of this invention is to provide an online detection and suppression device for defects in cotton knitted yarn, in order to solve the problem mentioned in the background art that when detecting defects in cotton knitted yarn, the cotton knitted yarn gets wrapped around the roller as it is being conveyed, and the roller needs to be removed by the operator with the help of tools, making the overall operation quite cumbersome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an online detection and suppression device for defects in cotton knitted yarn, comprising a base plate and a light-shielding box disposed on the upper end of the base plate, wherein a detection camera is installed on the upper end of the light-shielding box, and through holes are provided at both ends of the light-shielding box, with yarn passing through the interior of the through holes; a fixing frame is installed on the upper end of the base plate, and a winding roller is disposed on the upper end of the fixing frame, and a quick-release assembly mechanism is installed between the winding roller and the fixing frame; a support plate is installed on the upper end of the base plate, and a guide roller is disposed on the upper end of the support plate, and a suppression mechanism is disposed on the lower end of the support plate, with the lower end of the guide roller conforming to the surface of the yarn.

[0008] Furthermore, the outer side of the through hole is arc-shaped, and an ultraviolet lamp is fixedly installed inside the light-proof box, with the ultraviolet lamp aimed at the surface of the yarn.

[0009] Furthermore, the quick-release assembly mechanism is provided with a cutting plate, and the lower end of the cutting plate corresponds to the front and rear ends of the winding roller. Limiting blocks are fixedly installed on the left and right sides of the cutting plate, and inclined grooves are provided on the outer side of the limiting blocks.

[0010] Furthermore, a pull rod is installed through the outer side of the fixing frame, and a locking block is fixedly installed on the inner side of the pull rod. The locking block is inclined and corresponds to the inclined groove.

[0011] Furthermore, a return spring is sleeved on the surface of the pull rod, and locking blocks and fixing brackets are provided on the inner and outer sides of the return spring.

[0012] Furthermore, a drive motor is fixedly installed at the front end of the fixed frame, and a lever is installed at the output end of the drive motor, and the lever engages with the winding roller.

[0013] Furthermore, the suppression mechanism is provided with a limit rod, the upper end of which is fixedly installed at the lower end of the support plate, and the lower end of which penetrates the bottom plate. A buffer spring is sleeved on the surface of the limit rod, with the upper and lower ends of the buffer spring positioned between the support plate and the bottom plate. A damper is installed through the middle of the bottom plate, and the upper end of the damper is fixedly installed at the lower end of the support plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the winding roller is placed on the fixed frame, the insert plate is embedded. The limiting blocks on the left and right sides of the insert plate are embedded inside the fixed frame. At this time, as the limiting blocks press the locking block, due to the tilt of the locking block itself, the locking block moves outward until the locking block corresponds to the inclined groove. Under the action of the return spring, the locking block automatically engages inside the inclined groove, thus fixing it. Conversely, when the pull rod is pulled, the insert plate can be removed, and the winding roller can be removed. The winding roller can be quickly disassembled and installed, making the placement operation simple and convenient for the staff.

[0016] Furthermore, a light-shielding box is installed at the upper end of the base plate. The yarn passes through the through holes on both sides of the light-shielding box. The outer perimeter of the through holes is arc-shaped to protect the yarn when it passes through. At the same time, under the supplementary light of the ultraviolet lamp inside the light-shielding box, a stable light source is provided. During the detection, the drive motor drives the dial to rotate. When the dial rotates, it can drive the winding roller to rotate around the fixed frame through the slot. This enables the right winding roller to rewind and the left winding roller to unwind, thus achieving stable conveying.

[0017] 2. A guide roller is installed on the base plate, with its bottom in contact with the yarn. A support plate is also installed at the bottom of the guide roller, and a limiting rod is installed at the bottom of the support plate. The limiting rod passes through the base plate, and a buffer spring sleeved on the surface of the limiting rod can buffer the support plate and the guide roller through its own elasticity. With the setting of the damper, the reciprocating vibration of the buffer spring can be avoided, achieving the effect of pressure relief and protection, and suppressing defects in cotton knitted yarn. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0020] Figure 3 This is a frontal sectional view of the three-dimensional structure of the light-shielding box of this utility model.

[0021] Figure 4 This is a side view of the three-dimensional structure of the guide roller of this utility model.

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the cutting plate of this utility model.

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] Figure 7 This is a side-view perspective three-dimensional structural diagram of the drive motor of this utility model.

[0025] In the diagram: 1. Base plate; 2. Light-shielding box; 3. Detection camera; 4. Ultraviolet lamp; 5. Yarn; 6. Through hole; 7. Fixing frame; 8. Winding roller; 9. Guide roller; 10. Support plate; 11. Insertion plate; 12. Limiting block; 13. Inclined groove; 14. Pull rod; 15. Locking block; 16. Return spring; 17. Drive motor; 18. Toggle block; 19. Limiting rod; 20. Buffer spring; 21. Damper. Detailed Implementation

[0026] 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.

[0027] Example 1: As Figures 1-7 The technical solution shown is an online detection and suppression device for defects in cotton knitted yarn. To solve the problem of cumbersome disassembly and installation, it discloses: a base plate 1 and a light-shielding box 2 set on the upper end of the base plate 1. A detection camera 3 is installed on the upper end of the light-shielding box 2, and through holes 6 are opened at both ends of the light-shielding box 2, with yarn 5 passing through the inside of the through holes 6; a fixing frame 7 is installed on the upper end of the base plate 1, and a winding roller 8 is set on the upper end of the fixing frame 7. A quick-release assembly mechanism is installed between the winding roller 8 and the fixing frame 7. The outer shape of the through holes 6 is arc-shaped, and an ultraviolet lamp 4 is fixedly installed inside the light-shielding box 2, with the ultraviolet lamp 4 aimed at the surface of the yarn 5. The quick-release assembly mechanism is provided with a insertion plate 1. 1. The lower end of the insert plate 11 corresponds to the front and rear ends of the winding roller 8. Limiting blocks 12 are fixedly installed on the left and right sides of the insert plate 11. The outer side of the limiting block 12 is provided with a slanted groove 13. A pull rod 14 is installed through the outer side of the fixing frame 7. A locking block 15 is fixedly installed on the inner side of the pull rod 14. The locking block 15 is inclined. The locking block 15 corresponds to the slanted groove 13. A return spring 16 is sleeved on the surface of the pull rod 14. The locking block 15 and the fixing frame 7 are provided on the inner and outer sides of the return spring 16. A drive motor 17 is fixedly installed at the front end of the fixing frame 7. A toggle block 18 is installed at the output end of the drive motor 17. The toggle block 18 engages with the winding roller 8.

[0028] A light-shielding box 2 is installed at the upper end of the base plate 1. The yarn 5 passes through the through holes 6 on both sides of the light-shielding box 2. The outer perimeter of the through holes 6 is arc-shaped to protect the yarn 5 when it passes through. At the same time, under the supplementary light of the ultraviolet lamp 4 inside the light-shielding box 2, a stable light source is provided. This allows the passing yarn 5 to be detected under the detection camera 3, achieving the effect of stable detection of defects in cotton knitted yarn. During the detection, the drive motor 17 drives the dial block 18 to rotate. When the dial block 18 rotates, it can drive the winding roller 8 to rotate around the fixed frame 7 through the slot. This enables the right winding roller 8 to rewind and the left winding roller 8 to unwind the yarn. It can deliver the winding roller 8 stably. When the winding roller 8 is placed on the fixed frame 7, the insert plate 11 is embedded. The limiting blocks 12 on the left and right sides of the insert plate 11 are embedded inside the fixed frame 7. At this time, as the limiting blocks 12 press the locking block 15, due to the tilt of the locking block 15 itself, the locking block 15 moves outward until the locking block 15 corresponds to the inclined groove 13. Under the action of the return spring 16, the locking block 15 automatically engages inside the inclined groove 13, thus fixing it. Conversely, when the pull rod 14 is pulled, the insert plate 11 can be removed, and the winding roller 8 can be removed. The winding roller 8 can be quickly disassembled and installed, making the placement operation simple and convenient for the staff.

[0029] Example 2: Figure 1 and Figure 4 The technical solution shown, based on Embodiment 1, discloses the following to address the problem of numerous defects in cotton knitted yarn: a support plate 10 is installed on the upper end of the base plate 1, and a guide roller 9 is provided on the upper end of the support plate 10. A suppression mechanism is provided on the lower end of the support plate 10. The lower end of the guide roller 9 is in contact with the surface of the yarn 5. The suppression mechanism is provided with a limit rod 19, and the upper end of the limit rod 19 is fixedly installed on the lower end of the support plate 10. The lower end of the limit rod 19 penetrates through the base plate 1. A buffer spring 20 is sleeved on the surface of the limit rod 19. The upper and lower ends of the buffer spring 20 are located between the support plate 10 and the base plate 1. A damper 21 is installed through the middle of the base plate 1, and the upper end of the damper 21 is fixedly installed on the lower end of the support plate 10.

[0030] A guide roller 9 is set on the base plate 1, and the bottom of the guide roller 9 is in contact with the yarn 5. At the same time, a support plate 10 is set at the bottom of the guide roller 9, and a limiting rod 19 is set at the bottom of the support plate 10. The limiting rod 19 passes through the base plate 1. The buffer spring 20 sleeved on the surface of the limiting rod 19 can buffer the support plate 10 and the guide roller 9 through its own elasticity. With the setting of the damper 21, the buffer spring 20 can be prevented from reciprocating, achieving the effect of pressure relief and protection, and suppressing defects in cotton knitting yarn.

[0031] 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. An online detection and suppression device for cotton knitting yarn defects, comprising a base plate (1) and a light-proof box (2) arranged at the upper end of the base plate (1), a detection camera (3) is installed at the upper end of the light-proof box (2), and through holes (6) are formed at both ends of the light-proof box (2), and a yarn (5) passes through the through holes (6); characterized in that A fixing frame (7) is installed at the upper end of the base plate (1), a winding roller (8) is arranged at the upper end of the fixing frame (7), and a quick-release combination mechanism is installed between the winding roller (8) and the fixing frame (7); A support plate (10) is installed at the upper end of the base plate (1), a guide roller (9) is arranged at the upper end of the support plate (10), and a suppression mechanism is arranged at the lower end of the support plate (10), and the lower end of the guide roller (9) is attached to the surface of the yarn (5).

2. An apparatus for on-line detection and suppression of cotton knitted yarn defects as claimed in claim 1 wherein: The outer side of the through hole (6) is arc-shaped, and an ultraviolet lamp (4) is fixedly installed inside the light-proof box (2), and the ultraviolet lamp (4) is aligned with the surface of the yarn (5).

3. The apparatus for on-line detection and suppression of cotton knitted yarn defects according to claim 1, characterized in that: The quick-release combination mechanism is provided with a cutting plate (11), the lower end of the cutting plate (11) corresponds to the front and rear ends of the winding roller (8), limiting blocks (12) are fixedly installed on the left and right sides of the cutting plate (11), and inclined grooves (13) are formed on the outer side of the limiting blocks (12).

4. The apparatus for on-line detection and suppression of cotton knitted yarn defects according to claim 3, characterized in that: A pull rod (14) is installed through the outer side of the fixing frame (7), a locking block (15) is fixedly installed on the inner side of the pull rod (14), the locking block (15) is inclined, and the locking block (15) corresponds to the inclined groove (13).

5. An apparatus for on-line detection and suppression of cotton knitted yarn defects as claimed in claim 4 wherein: A reset spring (16) is sleeved on the surface of the pull rod (14), and the locking block (15) is arranged between the inner and outer sides of the reset spring (16) and the fixing frame (7).

6. An on-line detection and suppression device for cotton knitted yarn defects as claimed in claim 1 wherein: A driving motor (17) is fixedly installed at the front end of the fixing frame (7), a dial block (18) is installed at the output end of the driving motor (17), and the dial block (18) is engaged with the winding roller (8).

7. The apparatus for on-line detection and suppression of cotton knitted yarn defects according to claim 1, characterized in that: The suppression mechanism is provided with a limiting rod (19), the upper end of the limiting rod (19) is fixedly installed at the lower end of the support plate (10), the lower end of the limiting rod (19) penetrates the base plate (1), a buffer spring (20) is sleeved on the surface of the limiting rod (19), the upper and lower ends of the buffer spring (20) are arranged between the support plate (10) and the base plate (1), a damper (21) is installed through the middle end of the base plate (1), and the upper end of the damper (21) is fixedly installed at the lower end of the support plate (10).

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