Modified chinlon chemical fiber appearance detection device based on image sensor

Abstract

The invention discloses a modified chinlon chemical fiber appearance detection device based on an image sensor, and relates to the technical field of detection, the modified chinlon chemical fiber appearance detection device comprises a detection machine arranged on the ground; the transmission device is arranged on the inner wall of the detection machine; the placing frame is arranged at the top of the conveying device; the chinlon chemical fiber roll is connected to the surface of the placing frame in a sleeving manner; the detection equipment is fixedly mounted at the top of the inner wall of the detection machine; the driving device is mounted on the inner wall of the detection machine in a sliding manner; the scanning device is arranged at the output end of the driving device; the electric push rod is fixedly installed on the inner wall of the detection machine, the pulley yoke is fixedly installed at the output end of the driving device, and the situation that the detection device is in a long-time starting state, dust is attached to the detection device, and the detection precision is affected is prevented.

Description

Technical Field

[0001] The present invention relates to the field of detection technology, and particularly to an appearance detection device for modified polyamide chemical fiber based on an image sensor. Background Art

[0002] The appearance detection device for modified polyamide chemical fiber of an image sensor mainly aims to detect, identify and classify the appearance quality of polyamide chemical fiber materials by using the image sensor.

[0003] The patent with the patent announcement number CN109142369B relates to an appearance detection device for chemical fiber cakes. It solves the problem of large consumption of equipment resources in the prior art of using multi-angle and multi-directional imaging instruments to detect the appearance of a single fixed cake. The device includes a chassis and a housing. A conveying mechanism with a transport tray is arranged on the chassis. The cake is arranged on the tray. A top vision detection module and a side vision detection module are arranged along the transmission direction of the conveying mechanism. A rotating mechanism is arranged above the side vision detection module. A pushing mechanism is arranged on one side of the conveying mechanism. This invention realizes the automatic detection of external defects of chemical fiber cakes. The cake is transported on the conveying mechanism. The top of the cake is detected by the top vision detection module, and the side of the cake is detected by the side vision detection module. Compared with the traditional detection device for a single fixed cake by multi-angle and multi-directional imaging together, this invention has a more simple and reasonable structure, and is efficient and energy-saving in detection.

[0004] In the above patent, by realizing the automatic detection of external defects of chemical fiber cakes, the cake is transported on the conveying mechanism. The top of the cake is detected by the top vision detection module, and the side of the cake is detected by the side vision detection module. Compared with the traditional detection device for a single fixed cake by multi-angle and multi-directional imaging together, this invention has a more simple and reasonable structure, and is efficient and energy-saving in detection. However, dust may adhere to the top vision detection module for a long time, and dust particles may cause light scattering, resulting in blurred or out-of-focus images and affecting the image clarity. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an appearance detection device for modified polyamide chemical fiber based on an image sensor, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A modified polyamide chemical fiber appearance detection device based on an image sensor, comprising: a detection machine, which is arranged on the ground; a transmission device, which is arranged on the inner wall of the detection machine; a placement rack, which is arranged on the top of the transmission device; a polyamide chemical fiber roll, which is sleeved on the surface of the placement rack; a detection device, which is fixedly installed on the top of the inner wall of the detection machine; a driving device, which is slidably installed on the inner wall of the detection machine; a scanning device, which is arranged at the output end of the driving device; an electric push rod, which is fixedly installed on the inner wall of the detection machine; a pulley rack, which is fixedly installed at the output end of the driving device; an L-shaped plate, which is fixedly installed on the inner wall of the detection machine; a connecting plate, which is slidably installed at the bottom of the L-shaped plate; a sealing baffle, which is fixedly installed on the surface of the connecting plate. When the connecting plate moves away from the pulley rack, it will drive the sealing baffle to move away from the pulley rack. When the sealing baffle moves away from the pulley rack, it will open the detection device.

[0007] According to the above technical solution, a slope is provided on the surface of the connecting plate close to the pulley rack, and a first spring is arranged between the connecting plate and the L-shaped plate. When the pulley rack is separated from the connecting plate, the elastic force of the first spring itself will drive the connecting plate to reset.

[0008] According to the above technical solution, a positioning device for assisting in positioning the placement rack and a limiting device for limiting the placement rack are provided on the electric push rod. The positioning device includes a U-shaped rack, a hollow rod and a sliding rod. When the electric push rod moves towards the placement rack, it drives the U-shaped rack to move towards the placement rack. When the U-shaped rack moves towards the placement rack, it drives the hollow rod to move towards the placement rack. The U-shaped rack is fixedly installed at the output end of the electric push rod, the hollow rod is fixedly installed on the surface of the U-shaped rack, the sliding rod is slidably installed inside the hollow rod, and an arc-shaped plate is arranged at the end of the sliding rod far away from the hollow rod. By the opposite movement of the two arc-shaped plates, the placement rack is clamped in the middle to prevent the position of the placement rack from shifting and affecting the scanning of the scanning device.

[0009] According to the above technical solution, an air pressure box is fixedly installed on the inner wall of the detection machine, a connecting rod is fixedly installed at the output end of the electric push rod, a sealing plate is fixedly installed on the surface of the connecting rod, and an air pressure plate is fixedly installed at the top of the connecting rod. When the electric push rod moves towards the placement rack, it drives the connecting rod to move towards the placement rack. When the connecting rod moves towards the placement rack, it drives the air pressure plate to move towards the placement rack.

[0010] According to the above technical solution, the sealing plate is arranged at the bottom of the air pressure box, covering the bottom of the air pressure box to prevent gas from being discharged from the bottom of the air pressure box when the connecting rod moves, which affects the cleaning effect. The air pressure plate is slidably installed on the inner wall of the air pressure box.

[0011] According to the above technical solution, the limiting device includes a fixed rod, an L-shaped frame, a round block and a triangular plate. When the two arc-shaped plates move towards each other and contact the placement rack, the sliding rod will contract towards the direction close to the U-shaped frame. The sliding rod contracting towards the direction close to the U-shaped frame will drive the fixed rod to move towards the direction close to the U-shaped frame. The fixed rod is fixedly installed on the surface of the sliding rod. The L-shaped frame is slidably installed on the inner wall of the U-shaped frame. The round block is fixedly installed on the surface of the fixed rod. The triangular plate is fixedly installed on the inner wall of the L-shaped frame.

[0012] According to the above technical solution, a fixed seat is fixedly installed on the top of the transmission device. An L-shaped short plate is fixedly installed at the bottom of the hollow rod. A trapezoidal sliding plate is slidably installed on the surface of the fixed seat. A limiting plate is fixedly installed at the bottom of the trapezoidal sliding plate. The downward movement of the trapezoidal sliding plate will drive the limiting plate to move downward.

[0013] According to the above technical solution, a second spring is arranged between the L-shaped frame and the U-shaped frame. When the triangular plate and the round block are separated, the elastic force of the second spring itself will drive the L-shaped frame to reset. A third spring is arranged between the fixed seat and the trapezoidal sliding plate. When the L-shaped short plate and the trapezoidal sliding plate are separated, the elastic force of the third spring itself will drive the trapezoidal sliding plate to reset.

[0014] The present invention provides a modified polyamide chemical fiber appearance detection device based on an image sensor, having the following beneficial effects: (1) In this invention, the scanning device moves downward to comprehensively scan the polyamide chemical fiber roll. The system will identify defects on the surface of the polyamide chemical fiber roll, such as color difference, uneven thickness, wire drawing defects, foreign objects, breakage, etc. At the same time, when the pulley frame moves downward, it will push the connecting plate to move away from the pulley frame. The connecting plate moving away from the pulley frame will drive the sealing baffle to move away from the pulley frame. The sealing baffle moving away from the pulley frame will open the detection device, preventing the detection device from being in an open state for a long time when not in use, resulting in dust adhering to the detection device and affecting the detection accuracy.

[0015] (2) In this invention, the two arc-shaped plates move towards each other to clamp the placement rack in the middle, preventing the placement rack from shifting in position and affecting the scanning of the scanning device. At the same time, when the electric push rod moves towards the placement rack, it will drive the connecting rod to move towards the placement rack. The connecting rod moving towards the placement rack will drive the air pressure plate to move towards the placement rack. By compressing the air inside the air pressure box and discharging it, the discharged air is used to blow away the dust adhering to the polyamide chemical fiber roll, preventing the dust from affecting the detection of the detection device.

[0016] (3) In this invention, the position of the placement rack is corrected by moving the L-shaped rack towards the sliding rod, preventing the position from shifting and affecting the scanning by the scanning device. At the same time, when the L-shaped short board moves towards the placement rack, it will push the trapezoidal slide plate downward. The downward movement of the trapezoidal slide plate will drive the limit plate downward, and the placement rack is limited by the downward movement of the limit plate, preventing the placement rack from jittering up and down due to external factors during the detection process. Target jitter will cause the image to shift during scanning, and the image will become blurred or out of focus, affecting the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall sectional structure of the present invention; Figure 3 is a schematic diagram of the sectional structure of the detector of the present invention; Figure 4 is a schematic diagram of the structure of the L-shaped plate and the connecting plate of the present invention; Figure 5 is a schematic diagram of the structure of the positioning device of the present invention; Figure 6 of the present invention Figure 5 enlarged schematic diagram of the structure of part A; Figure 7 is a schematic diagram of the sectional structure of the air pressure box of the present invention.

[0018] In the figure: 1, transmission device; 2, detector; 3, placement rack; 4, nylon chemical fiber roll; 5, detection equipment; 6, driving device; 7, scanning device; 8, electric push rod; 9, pulley rack; 10, L-shaped plate; 11, connecting plate; 12, sealing baffle; 131, U-shaped rack; 132, hollow rod; 133, sliding rod; 134, air pressure box; 135, connecting rod; 136, sealing plate; 137, air pressure plate; 141, fixed rod; 142, L-shaped rack; 143, round block; 144, triangular plate; 145, fixed seat; 146, L-shaped short board; 147, trapezoidal slide plate; 148, limit plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 4, an embodiment of the present invention is: an appearance detection device for modified polyamide chemical fiber based on an image sensor, comprising: a detection machine 2, the detection machine 2 is arranged on the ground; a transmission device 1, the transmission device 1 is arranged on the inner wall of the detection machine 2; a placement rack 3, the placement rack 3 is arranged on the top of the transmission device 1; a polyamide chemical fiber roll 4, the polyamide chemical fiber roll 4 is sleeved on the surface of the placement rack 3; a detection device 5, the detection device 5 is fixedly installed on the top of the inner wall of the detection machine 2; a driving device 6, the driving device 6 is slidably installed on the inner wall of the detection machine 2; a scanning device 7, the scanning device 7 is arranged at the output end of the driving device 6; an electric push rod 8, the electric push rod 8 is fixedly installed on the inner wall of the detection machine 2; a pulley bracket 9, the pulley bracket 9 is fixedly installed at the output end of the driving device 6; an L-shaped plate 10, the L-shaped plate 10 is fixedly installed on the inner wall of the detection machine 2; a connecting plate 11, the connecting plate 11 is slidably installed at the bottom of the L-shaped plate 10; a sealing baffle 12, the sealing baffle 12 is fixedly installed on the surface of the connecting plate 11. The detection device 5 is in an open state for a long time, resulting in dust adhering to the detection device 5 and affecting the detection accuracy.

[0021] One side of the connecting plate 11 close to the pulley bracket 9 is provided with an inclined surface. A first spring is arranged between the connecting plate 11 and the L-shaped plate 10. When the pulley bracket 9 is separated from the connecting plate 11, the elastic force of the first spring itself will drive the connecting plate 11 to reset.

[0022] When this embodiment works: the polyamide chemical fiber roll 4 on the placement rack 3 is conveyed under the detection device 5 through the transmission device 1. Subsequently, the driving device 6 is started. The downward movement of the driving device 6 will drive the scanning device 7 to move downward. The polyamide chemical fiber roll 4 is comprehensively scanned by the downward movement of the scanning device 7. The system will identify defects on the surface of the polyamide chemical fiber roll 4, such as color difference, uneven thickness, wire drawing defects, foreign objects, breakage, etc. At the same time, the downward movement of the driving device 6 will drive the pulley bracket 9 to move downward. The downward movement of the pulley bracket 9 will push the connecting plate 11 to move away from the pulley bracket 9. The movement of the connecting plate 11 away from the pulley bracket 9 will drive the sealing baffle 12 to move away from the pulley bracket 9. The movement of the sealing baffle 12 away from the pulley bracket 9 will open the detection device 5, preventing the detection device 5 from being in an open state for a long time when not in use, resulting in dust adhering to the detection device 5 and affecting the detection accuracy.

[0023] Please refer to Figures 1 - 7, on the basis of the above embodiments, in another embodiment of the present invention, a positioning device for assisting in positioning the placement rack 3 and a limiting device for limiting the placement rack 3 are provided on the electric push rod 8. The positioning device includes a U-shaped frame 131, a hollow rod 132, and a sliding rod 133. The U-shaped frame 131 is fixedly installed at the output end of the electric push rod 8. The hollow rod 132 is fixedly installed on the surface of the U-shaped frame 131. The sliding rod 133 is slidably installed on the inner wall of the hollow rod 132. An arc-shaped plate is provided at one end of the sliding rod 133 away from the hollow rod 132. The placement rack 3 is clamped in the middle by the opposite movement of the two arc-shaped plates, preventing the position of the placement rack 3 from shifting and affecting the scanning of the scanning device 7.

[0024] An air pressure box 134 is fixedly installed on the inner wall of the detector 2. A connecting rod 135 is fixedly installed at the output end of the electric push rod 8. A sealing plate 136 is fixedly installed on the surface of the connecting rod 135. An air pressure plate 137 is fixedly installed at the top of the connecting rod 135. The air inside the air pressure box 134 is compressed and discharged by the air pressure plate 137, and the discharged air is used to blow away the dust adhering to the nylon chemical fiber roll 4, preventing the dust from affecting the detection of the detection device 5.

[0025] The sealing plate 136 is arranged at the bottom of the air pressure box 134. The bottom of the air pressure box 134 is covered by the sealing plate 136 to prevent the gas from being discharged from the bottom of the air pressure box 134 when the connecting rod 135 moves, affecting the cleaning effect. The air pressure plate 137 is slidably installed on the inner wall of the air pressure box 134.

[0026] The limiting device includes a fixed rod 141, an L-shaped frame 142, a round block 143, and a triangular plate 144. The fixed rod 141 is fixedly installed on the surface of the sliding rod 133. The L-shaped frame 142 is slidably installed on the inner wall of the U-shaped frame 131. The round block 143 is fixedly installed on the surface of the fixed rod 141. The triangular plate 144 is fixedly installed on the inner wall of the L-shaped frame 142. The position of the placement rack 3 is corrected by moving the L-shaped frame 142 towards the sliding rod 133, preventing the position from shifting and affecting the scanning of the scanning device 7.

[0027] A fixed seat 145 is fixedly installed on the top of the transmission device 1. An L-shaped short plate 146 is fixedly installed at the bottom of the hollow rod 132. A trapezoidal sliding plate 147 is slidably installed on the surface of the fixed seat 145. A limiting plate 148 is fixedly installed at the bottom of the trapezoidal sliding plate 147. The placement rack 3 is limited by the downward movement of the limiting plate 148, preventing the placement rack 3 from jittering up and down due to external factors during the detection process. The target jitter will cause the image to shift during the scanning process, and the image will become blurred or out of focus, affecting the detection effect.

[0028] A second spring is arranged between the L-shaped frame 142 and the U-shaped frame 131. When the triangular plate 144 disengages from the round block 143, the elastic force of the second spring itself will drive the L-shaped frame 142 to reset. A third spring is arranged between the fixed seat 145 and the trapezoidal slide plate 147. When the L-shaped short plate 146 disengages from the trapezoidal slide plate 147, the elastic force of the third spring itself will drive the trapezoidal slide plate 147 to reset.

[0029] When this embodiment works: The electric push rod 8 moves towards the placing rack 3, driving the U-shaped frame 131 to move towards the placing rack 3. The movement of the U-shaped frame 131 towards the placing rack 3 drives the hollow rod 132 to move towards the placing rack 3. The movement of the hollow rod 132 towards the placing rack 3 drives the sliding rod 133 to move towards the placing rack 3. The movement of the sliding rod 133 towards the placing rack 3 drives the arc-shaped plate to move towards the placing rack 3. The two arc-shaped plates move towards each other and clamp the placing rack 3 in the middle, preventing the position of the placing rack 3 from shifting and affecting the scanning of the scanning device 7. At the same time, the electric push rod 8 moves towards the placing rack 3, driving the connecting rod 135 to move towards the placing rack 3. The movement of the connecting rod 135 towards the placing rack 3 drives the air pressure plate 137 to move towards the placing rack 3. The air pressure plate 137 compresses the air inside the air pressure box 134 and discharges it. The discharged air is used to blow away the dust adhering to the nylon chemical fiber roll 4, preventing the dust from affecting the detection of the detection device 5.

[0030] When the two arc-shaped plates move towards each other and contact the placing rack 3, the sliding rod 133 will contract towards the U-shaped frame 131. The contraction of the sliding rod 133 towards the U-shaped frame 131 drives the fixed rod 141 to move towards the U-shaped frame 131. The movement of the fixed rod 141 towards the U-shaped frame 131 drives the round block 143 to move towards the U-shaped frame 131. The movement of the round block 143 towards the U-shaped frame 131 pushes the triangular plate 144 towards the sliding rod 133. The movement of the triangular plate 144 towards the sliding rod 133 drives the L-shaped frame 142 to move towards the sliding rod 133. The movement of the L-shaped frame 142 towards the sliding rod 133 corrects the position of the placing rack 3, preventing the position from shifting and affecting the scanning of the scanning device 7. At the same time, the movement of the hollow rod 132 towards the placing rack 3 drives the L-shaped short plate 146 to move towards the placing rack 3. The movement of the L-shaped short plate 146 towards the placing rack 3 pushes the trapezoidal slide plate 147 downward. The downward movement of the trapezoidal slide plate 147 drives the limiting plate 148 downward. The downward movement of the limiting plate 148 limits the placing rack 3, preventing the placing rack 3 from jittering up and down due to external factors during the detection process. The target jitter will cause the image to shift during the scanning process, and the image will become blurred or out of focus, affecting the detection effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill 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, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An appearance detection device for modified polyamide chemical fiber based on an image sensor, characterized in that, A detection device for detecting polyamide chemical fibers, comprising: A detector (2), which is arranged on the ground; A transmission device (1), which is arranged on the inner wall of the detector (2); A placement rack (3), which is arranged on the top of the transmission device (1); A polyamide chemical fiber roll (4), which is sleeved on the surface of the placement rack (3); Detection equipment (5), which is fixedly installed on the top of the inner wall of the detector (2); A driving device (6), which is slidably installed on the inner wall of the detector (2); A scanning device (7), which is arranged at the output end of the driving device (6); An electric push rod (8), which is fixedly installed on the inner wall of the detector (2); A pulley rack (9), which is fixedly installed at the output end of the driving device (6); An L-shaped plate (10), which is fixedly installed on the inner wall of the detector (2); A connecting plate (11), which is slidably installed at the bottom of the L-shaped plate (10); A sealing baffle (12), which is fixedly installed on the surface of the connecting plate (11), and a positioning device for assisting in positioning the placement rack (3) and a limiting device for limiting the placement rack (3) are arranged on the electric push rod (8).

2. The appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 1, wherein: One side of the connecting plate (11) close to the pulley rack (9) is provided with an inclined surface, and a first spring is arranged between the connecting plate (11) and the L-shaped plate (10).

3. The appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 2, characterized in that: The positioning device includes a U-shaped frame (131), a hollow rod (132) and a sliding rod (133). The U-shaped frame (131) is fixedly installed at the output end of the electric push rod (8). The hollow rod (132) is fixedly installed on the surface of the U-shaped frame (131). The sliding rod (133) is slidably installed on the inner wall of the hollow rod (132). An arc-shaped plate is arranged at one end of the sliding rod (133) away from the hollow rod (132).

4. An appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 3, characterized in that: An air pressure box (134) is fixedly installed on the inner wall of the detector (2). A connecting rod (135) is fixedly installed at the output end of the electric push rod (8). A sealing plate (136) is fixedly installed on the surface of the connecting rod (135). An air pressure plate (137) is fixedly installed at the top of the connecting rod (135).

5. The appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 4, wherein: The sealing plate (136) is arranged at the bottom of the air pressure box (134), and the air pressure plate (137) is slidably installed on the inner wall of the air pressure box (134).

6. The appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 5, characterized in that: The limiting device includes a fixed rod (141), an L-shaped frame (142), a round block (143) and a triangular plate (144). The fixed rod (141) is fixedly installed on the surface of the sliding rod (133). The L-shaped frame (142) is slidably installed on the inner wall of the U-shaped frame (131). The round block (143) is fixedly installed on the surface of the fixed rod (141). The triangular plate (144) is fixedly installed on the inner wall of the L-shaped frame (142).

7. The appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 6, characterized in that: A fixing base (145) is fixedly installed at the top of the transmission device (1). An L-shaped short plate (146) is fixedly installed at the bottom of the hollow rod (132). A trapezoidal sliding plate (147) is slidably installed on the surface of the fixing base (145). A limiting plate (148) is fixedly installed at the bottom of the trapezoidal sliding plate (147).

8. An appearance detection device for modified polyamide chemical fiber based on an image sensor according to claim 7, characterized in that: A second spring is arranged between the L-shaped frame (142) and the U-shaped frame (131). A third spring is arranged between the fixing base (145) and the trapezoidal sliding plate (147).

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