Paper tube external inspection equipment

Abstract

The embodiment of the present disclosure provides a paper tube external inspection device, including a transmission ramp, an appearance inspection mechanism, and a sorting mechanism, wherein the transmission ramp includes a pair of slide rails arranged in parallel at a preset interval, the slide rails include a contact surface formed by a bottom plate and extending along the length direction of the slide rails, and a vertical plane formed by a side plate; the paper tube to be inspected is fed into one end of the transmission ramp in a posture axially perpendicular to the vertical plane, and is restricted by the side plates of the pair of slide rails to move or roll on the contact surface; the transmission ramp includes a front section located upstream in the transmission direction and a sliding section connected to the front section; the appearance inspection The detection mechanism includes a box and a detection probe, the detection probe is arranged above the sliding section and facing the slide rail of the sliding section, and the area covered by the detection range of the detection probe in the transmission ramp is the detection area; the box surrounds the detection probe and the detection area, and the boxes at both ends of the detection area are provided with entrances and exits for the paper tubes to be inspected to enter and exit; when the paper tubes to be inspected pass through the detection area, their appearance features are collected by the detection probe; the sorting mechanism is arranged next to the transmission ramp downstream of the detection area, and the sorting mechanism includes a sorting plate, which is used to separate the target paper tube from the slide rail and thus leave the transmission ramp. The technical solution of the disclosed embodiment can efficiently and comprehensively detect the appearance defects of the paper tubes in the process of the paper tubes rolling forward, reduce the complexity of the production line, and improve the detection efficiency and reliability.

Description

Technical Field

[0001] The present disclosure relates to the field of spinning technology, and in particular to a paper tube external inspection device. Background Art

[0002] In the field of spinning, paper tubes play an important role as the winding axis of the spindle. A groove (also called a groove line or cut groove) needs to be cut on the paper tube. The groove provides a path to help the yarn to be more easily stuck in the paper tube at the beginning of winding and thus be fixed. In other words, the groove can be used as a fixing point for the yarn to prevent the yarn from slipping or falling off during the winding process, ensuring the stability of the yarn and the winding quality. The quality of the paper tube directly affects the winding quality and production efficiency of the yarn. In the process of cutting the groove, any incorrect operation may result in a groove that does not meet the requirements, which in turn affects the performance of the paper tube and the winding effect of the yarn. Summary of the invention

[0003] The embodiments of the present disclosure provide a paper tube external inspection device to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a paper tube external inspection device, including:

[0005] The transmission ramp comprises a pair of slide rails arranged in parallel at a preset interval, the slide rails comprising a contact surface formed by a bottom plate and extending along the length direction of the slide rails and a vertical plane formed by a side plate; the paper tube to be inspected is fed into one end of the transmission ramp in a posture with the axial direction perpendicular to the vertical plane, and is limited by the side plates of the pair of slide rails to move or roll on the contact surface; the transmission ramp comprises a front section located upstream in the transmission direction and a sliding section connected to the front section;

[0006] The appearance inspection mechanism includes a box and a detection probe. The detection probe is arranged above the sliding section and faces the slide rail of the sliding section. The area covered by the detection range of the detection probe in the transmission ramp is the detection area. The box surrounds the detection probe and the detection area. The boxes at both ends of the detection area are provided with entrances and exits for the paper tube to be inspected to enter and exit. When the paper tube to be inspected passes through the detection area, its appearance characteristics are collected by the detection probe.

[0007] A sorting mechanism is arranged beside the transmission ramp downstream of the detection area, and the sorting mechanism includes a sorting plate, and the sorting plate is used to separate the target paper tube from the slide rail so as to leave the transmission ramp;

[0008] The preset spacing matches the height of the paper tube to be inspected and is larger than the diameter of the paper tube to be inspected.

[0009] In one embodiment, a resistance layer is provided on the contact surface of a pair of slide rails located in the detection area, and the resistance layer has a first friction coefficient, which is greater than the friction coefficient of the contact surface of the slide rails, so that the paper tube to be inspected rolls when passing through the detection area; wherein the length of the detection area is greater than the circumference of the paper tube.

[0010] In one embodiment, the inclination angle between the two ends of the sliding segment is greater than the inclination angle of the front segment.

[0011] In one embodiment, a blocking mechanism is provided at the end of the front section, and the blocking mechanism is used to allow the paper tubes to be inspected to enter the sliding section at intervals.

[0012] In one embodiment, the blocking mechanism includes a telescopic claw and a first driving device. Under the drive of the first driving device, the front end of the telescopic claw probes into the forward direction of the paper tube to be inspected at a preset time interval to block the paper tube to be inspected located in the front section from entering the sliding section.

[0013] In one embodiment, the blocking mechanism includes a seesaw disposed between a pair of slide rails, the seesaw includes a first protrusion located upstream in the transmission direction, a second protrusion located downstream in the transmission direction, and a middle portion therebetween, the middle portion being connected to the pair of slide rails via a rotating shaft, the first protrusion and the second protrusion swinging about the rotating shaft so that the highest point of the first protrusion or the second protrusion drops to the plane where the contact surface of the slide rail at the corresponding position is located; the middle portion can accommodate a paper tube to be inspected, and each reciprocating swing of the seesaw allows a paper tube to be inspected to enter the sliding section.

[0014] In one embodiment, the blocking mechanism includes a reset device, which includes a motor and an eccentric wheel connected to the output shaft of the motor. A reset rod is provided at the lower part of the rocker, and the end of the reset rod is suspended on one side of the eccentric wheel. Whenever the eccentric wheel rotates to the target position, it drives the reset rod to move, so that the first protrusion descends.

[0015] In one embodiment, the sorting mechanism includes a second driving device, which is connected to a sorting plate, and the sorting plate is arranged on the inner side of any slide rail of the transmission ramp. The second driving device is used to quickly lift at least a portion of the sorting plate above the contact surface, so that when the target paper tube passes through the sorting area where the sorting mechanism is located, the target paper tube produces non-axial rotation due to one end of the target paper tube being blocked by the sorting plate.

[0016] In one embodiment, the slide rail at the sorting area is provided with an outward expansion portion, and the side panels of the outward expansion portion are bent outward.

[0017] In one embodiment, the sorting plate is a strip-shaped flat plate, which replaces the bottom plate of the slide rail on one side of the sorting area. A rotating shaft is provided at the upstream end of the sorting plate, and a shift block is provided on one side of the rotating shaft, which matches the output shaft of the second driving device.

[0018] In one embodiment, the sorting mechanism includes a third driving device, which is connected to a sorting plate, the width of the sorting plate is the same as the width of the bottom plate, the slide rail of the sorting area is not provided with a bottom plate, and the two ends of the sorting plate are respectively abutted against the upstream and downstream bottom plates of the sorting area to replace the bottom plate of the slide rail of the sorting area; the third driving device is used to move the sorting plate in a direction perpendicular to the side plate so that the sorting plate can switch between the inner side and the outer side of the side plate.

[0019] The disclosed embodiment adopts the above-mentioned technical solution to efficiently and comprehensively detect the appearance defects of the paper tube as the paper tube rolls forward, thereby reducing the complexity of the production line and improving the detection efficiency and reliability.

[0020] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments provided according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0022] Figure 1 A schematic diagram of the side structure of a paper tube external inspection device according to an embodiment of the present disclosure is shown;

[0023] Figure 2 A schematic diagram of a top view of a paper tube external inspection device according to an embodiment of the present disclosure is shown;

[0024] Figure 3 A schematic diagram of the top structure of a paper tube external inspection device according to another embodiment of the present disclosure is shown.

[0025] Explanation of the reference numerals: 10, transmission ramp; 11, slide rail; 11a, side plate; 11b, bottom plate; 20, appearance inspection mechanism; 12, front section; 13, sliding section; 14, expansion section; 21, box body; 22, inspection probe; 23, resistance layer; 30, sorting mechanism; 31, sorting plate; 32, third driving device; 33, shifting block; 40, paper tube to be inspected; 41, slit; 50, blocking mechanism; 51, seesaw; 51a, first protrusion; 51b, second protrusion; 51c, middle part; 52, second driving device. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] Figure 1 A side structural schematic diagram of a paper tube external inspection device according to an embodiment of the present disclosure is shown. Figure 2 A schematic diagram of the top view of the paper tube external inspection device according to an embodiment of the present disclosure is shown. Figure 1 , Figure 2 As shown, the paper tube external inspection equipment includes:

[0028] The transmission ramp 10 includes a pair of slide rails 11 arranged in parallel at a preset interval, and the slide rails 11 include a contact surface formed by a bottom plate 11b and extending along the length direction of the slide rails 11 and a vertical plane formed by a side plate 11a; the paper tube 40 to be inspected is fed into one end of the transmission ramp 10 in a posture with the axial direction perpendicular to the vertical plane, and is limited by the side plates 11a of the pair of slide rails 11 to move or roll on the contact surface; the transmission ramp 10 includes a front section 12 located upstream in the transmission direction and a sliding section 13 connected to the front section 12;

[0029] The appearance detection mechanism 20 includes a box 21 and a detection probe 22. The detection probe 22 is arranged above the slide section 13 and faces the slide rail 11 of the slide section 13. The area covered by the detection range of the detection probe 22 in the transmission ramp 10 is the detection area; the box 21 surrounds the detection probe 22 and the detection area, and the box 21 at both ends of the detection area is provided with an entrance and exit for the paper tube 40 to be inspected to enter and exit; when the paper tube 40 to be inspected passes through the detection area, its appearance characteristics are collected by the detection probe 22;

[0030] A sorting mechanism 30 is arranged beside the transmission ramp 10 downstream of the detection area. The sorting mechanism 30 includes a sorting plate 31. The sorting plate 31 is used to make the target paper tube produce non-axial rotation so that the target paper tube falls from the gap between the pair of slide rails 11 and leaves the transmission ramp 10;

[0031] The preset spacing matches the height of the paper tube 40 to be inspected and is larger than the diameter of the paper tube 40 to be inspected.

[0032] In the disclosed embodiment, the paper tube 40 to be inspected is a paper tube that needs to be inspected after the wire groove is cut. The entrance of the transmission ramp 10 is higher than the exit, so that the paper tube 40 to be inspected entering the transmission ramp 10 can move downstream by gravity. The paper tube 40 to be inspected is a cylinder, and its height is usually greater than its diameter. A pair of slide rails 11 of the transmission ramp 10 can accommodate the paper tube 40 to be inspected and placed horizontally between the pair of slide rails 11, and slide or roll toward the downstream of the transmission ramp 10. The slide rail 11 includes a smooth side plate 11a and a bottom plate 11b vertically connected to the side plate 11a. The upper surface of the bottom plate 11b is a contact surface with the paper tube. The contact surface can be relatively rough to increase the friction with the paper tube, so that the paper tube rolls instead of slides when moving. The front section 12 of the transmission ramp 10 can be understood as a preparation area for preparing for appearance inspection. The front section 12 can be horizontal, and the previous paper tube is pushed into the sliding section 13 by the subsequent paper tube. The front section 12 may also have a smaller slope, for example, less than 10°. The sliding section 13 may be understood as a section having a certain slope so that the paper tube slides downstream by gravity, and the appearance inspection is performed during the sliding process.

[0033] The detection probe 22 can be an image acquisition device and / or a laser detection device, etc. The appearance detection mechanism 20 can use the detection probe 22 to capture the appearance characteristics of the paper tube 40 to be inspected by photographing or recording when the paper tube 40 to be inspected rolls through the detection area, so as to determine whether there are defects in the appearance of the paper tube 40 to be inspected. The defects may include the surface of the paper tube and the slit 41. The defects on the surface of the paper tube mainly include stains, damage and other abnormalities. The defects of the slit 41 mainly include unqualified slit length, width, and depth, or the paper tube at the edge of the slit 41 is damaged, causing the slit 41 to have unnecessary bifurcations.

[0034] In one example, the detection probe 22 includes a laser detection system, and one or more laser emitters are installed above the detection area, and the laser beam can be accurately irradiated along the edge of the slit 41. The laser emitter is used in conjunction with the detection probe 22 (such as a photoelectric sensor or a camera), and the probe is responsible for receiving and analyzing the laser reflection signal. A control system is responsible for coordinating the operation of the laser emitter and the detection probe 22 to ensure that the emission of the laser beam and the reception of the probe are synchronized. When the paper tube enters the detection area, the laser emitter starts to emit a laser beam. The laser beam irradiates the edge of the slit 41, and as the paper tube rolls, the laser beam will continuously scan the edge of the slit 41. Due to the rotation of the paper tube, each part of the slit 41 will be irradiated by the laser. The photoelectric sensor or camera receives the reflection signal of the laser beam at the edge of the slit 41. The received signal is analyzed by the signal processing unit. The system detects the reflection change of the laser beam at the edge of the slit 41 and looks for any irregular bifurcation or defect. If a camera is used, image processing technology can analyze the edge of the slit 41 and identify any shape or bifurcation that does not meet the standard. The system determines whether there is a defect through a preset algorithm. A threshold is usually set, and when the reflected signal or image feature exceeds the threshold, it is judged as a defective product. If the paper tube is judged to be defective, the sorting mechanism 30 located downstream of the detection area will remove the paper tube from the transmission ramp 10, usually by pushing the paper tube out or rotating it off the track through a mechanical arm or a push rod.

[0035] In one example, the detection probe 22 is a visual inspection system, and a high-resolution industrial camera is installed above the detection area to ensure that the details of the paper tube can be clearly captured. The visual inspection system includes an appropriate light source to provide uniform and sufficiently bright lighting to improve the imaging quality of the camera. When the paper tube enters the detection area, the visual inspection system starts to collect images through sensors or time triggers. As the paper tube rolls, the entire circumference of the paper tube will be captured and collected by the camera. In order to ensure comprehensive detection, multiple cameras can be continuously configured along the transmission direction for collection, and each camera is responsible for collecting a portion of the surface image of the paper tube, such as 1 / 3 of the circumference, so that the camera can be placed closer to the paper tube. If only one camera is used to collect the entire circumference of the paper tube, the camera needs to be farther away from the paper tube to cover the distance traveled by the paper tube rolling one circle.

[0036] It should be noted that the prior art requires the use of a conveyor belt to transport paper tubes, which are then sent to an external inspection mechanism. The external inspection mechanism requires the paper tube to be grabbed by a rotating table or a mechanical claw, and then rotated in place at the inspection station for one circle to fully capture the appearance of the paper tube. During this process, the inspected paper tube stops moving forward, and subsequent paper tubes need to wait until the inspected paper tube is inspected before they can continue to move forward. The disclosed embodiment does not require a conveyor belt, but allows the paper tube to roll along the ramp by itself, and does not require an additional rotating table or mechanical claw, reducing the purchase and maintenance costs of the equipment. The paper tube can be continuously inspected while rolling on the ramp, without having to stop and wait for the inspection to be completed, reducing the inspection time and the downtime of the production line.

[0037] According to the scheme of the embodiment of the present disclosure, the detection and transportation processes are integrated, and the quality problems of the cut seam 41 can be efficiently and comprehensively detected while the paper tube is rolling forward, ensuring that only paper tubes that meet the standards continue to enter the next production link, thereby improving production efficiency and product quality, reducing the complexity of the production line, and improving the reliability of the production line.

[0038] In one embodiment, a resistance layer 23 is provided on the contact surface of a pair of slide rails 11 located in the detection area, and the resistance layer 23 has a first friction coefficient, which is greater than the friction coefficient of the contact surface of the slide rail 11, so that the paper tube 40 to be inspected rolls when passing through the detection area; wherein the length of the detection area is greater than the circumference of the paper tube.

[0039] In the disclosed embodiment, a material with a high friction coefficient, such as a rubber pad, sandpaper or other high friction coefficient coating, is covered or pasted on the contact surface of a pair of slide rails 11 in the detection area. The first friction coefficient of the resistance layer 23 is designed to be greater than the friction coefficient of the contact surface of the slide rail 11 itself, so as to increase the friction between the paper tube and the slide rail 11. When the paper tube enters the detection area, due to the action of the resistance layer 23, the friction between the paper tube and the slide rail 11 increases, forcing the paper tube to roll forward on the ramp instead of sliding.

[0040] The length of the detection zone is designed to be greater than the circumference of the paper tube to ensure that the detection probe 22 can fully scan the outer surface of the paper tube during the paper tube rolling one circle. The length of the resistance layer 23 should match the length of the detection zone.

[0041] According to the solution of the embodiment of the present disclosure, the paper tube can be fully inspected in appearance while rolling forward in the inspection area. The setting of the resistance layer 23 ensures the rolling of the paper tube, and the length of the inspection area ensures the coverage of the inspection, thus realizing an efficient and accurate inspection process, reducing physical interference with the paper tube, and improving production efficiency and product quality.

[0042] In one embodiment, the inclination angle between the two ends of the sliding segment 13 is greater than the inclination angle of the front segment 12 .

[0043] In the disclosed embodiment, the inclination angle between the two ends of the sliding section 13 is designed to be greater than the inclination angle of the front section 12, so as to increase the rolling speed of the paper tube after entering the sliding section 13. The paper tube enters the sliding section 13 and obtains acceleration, so that two consecutive paper tubes have a certain spacing, and the distance between the front and rear paper tubes is prevented from being too close and affecting the detection of the detection probe 22. The front section 12 and the sliding section 13 can be connected by a hinge structure, allowing the slopes of the two sections of the ramp to be adjusted independently. By adjusting the slopes of the front section 12 and the sliding section 13, it is ensured that the paper tube can roll stably in the detection area, and will not slide due to a small slope or accelerate too fast due to a large slope, resulting in inaccurate detection.

[0044] According to the solution of the embodiment of the present disclosure, the larger inclination angle of the sliding section 13 ensures that the paper tube can roll quickly in the detection area, thereby improving the detection speed. The hinged connection between the front section 12 and the sliding section 13 makes the adjustment of the slope more flexible, which can adapt to different production requirements and ensure the efficiency, accuracy and stability of the detection process.

[0045] In one embodiment, a blocking mechanism 50 is provided at the end of the front section 12 , and the blocking mechanism 50 is used to allow the paper tubes 40 to be inspected to enter the sliding section 13 at intervals.

[0046] In the disclosed embodiment, a blocking mechanism 50 is provided at the end of the front section 12, before the paper tube enters the sliding section 13. The blocking mechanism 50 is used to control the interval of the paper tube entering the sliding section 13, ensuring a certain distance between two consecutive paper tubes.

[0047] According to the solution of the embodiment of the present disclosure, the blocking mechanism 50 ensures that the paper tubes have a certain distance when entering the sliding section 13, avoiding the problem of blind spots or repeated detection due to excessive proximity of the paper tubes to the detection probe 22 during the detection process.

[0048] In one embodiment, the blocking mechanism 50 includes a telescopic claw and a first driving device. Under the drive of the first driving device, the front end of the telescopic claw probes into the forward direction of the paper tube 40 to be inspected at a preset time interval to block the paper tube 40 to be inspected located in the front section 12 from entering the sliding section 13.

[0049] In the disclosed embodiment, the blocking mechanism 50 may be in the form of a telescopic claw, and the first driving device may be a cylinder or a motor. The front end of the telescopic claw may be inserted into the advancing direction of the paper tube within a preset time interval to block the paper tube from entering the sliding section 13. The telescopic claw may be driven by a cylinder or a motor to ensure accurate and rapid movement. The extension time interval of the telescopic claw may be set by the control system to ensure that the paper tube enters the interval.

[0050] When the paper tube reaches the end of the front section 12, the telescopic claw extends to stop the paper tube from moving forward, ensuring that the paper tube queues up in the front section 12. After a preset time interval, the telescopic claw retracts, allowing a paper tube to enter the sliding section 13, ensuring that there is a certain spacing between the paper tubes.

[0051] According to the solution of the embodiment of the present disclosure, the blocking mechanism 50 can accurately control the rhythm of the paper tube entering the sliding section 13, improve the accuracy and efficiency of the detection, and ensure the stability and continuity of the paper tube during the detection process.

[0052] In one embodiment, the blocking mechanism 50 includes a seesaw 51 arranged between a pair of slide rails 11, the seesaw 51 includes a first protrusion 51a located upstream in the transmission direction, a second protrusion 51b located downstream in the transmission direction, and a middle portion 51c therebetween, the middle portion 51c is connected to the pair of slide rails 11 through a rotating shaft, the first protrusion 51a and the second protrusion 51b swing about the rotating shaft so that the highest point of the first protrusion 51a or the second protrusion 51b drops to the plane where the contact surface of the slide rail 11 at the corresponding position is located; the middle portion 51c can accommodate a paper tube 40 to be inspected, and the seesaw 51 allows a paper tube 40 to be inspected to enter the sliding section 13 each time it swings back and forth.

[0053] In the disclosed embodiment, the center of gravity of the seesaw 51 is set on one side of the first protrusion 51a, so that in a natural state, the first protrusion 51a droops and the second protrusion 51b tilts. In the initial state, the first protrusion 51a of the seesaw 51 droops and the second protrusion 51b tilts, allowing the paper tube to enter the middle part 51c of the seesaw 51 from the first protrusion 51a. When the paper tube reaches the end of the front section 12, the paper tube will naturally slide into the middle part 51c of the seesaw 51. Affected by the inclination angle of the front section 12, the paper tube will continue to roll, pass the middle part 51c of the seesaw 51 and abut against the side of the second protrusion 51b. The weight of the paper tube will change the center of gravity balance of the seesaw 51, causing the second protrusion 51b to drop and the first protrusion 51a to tilt. After the first protrusion 51a tilts, it blocks the subsequent paper tubes from entering the seesaw 51, ensuring that the paper tubes enter the sliding section 13 at intervals. Since the inclination angle of the sliding section 13 is greater than that of the front section 12, the paper tube will roll faster after entering the sliding section 13, ensuring that it can pass quickly in the detection area.

[0054] According to the solution of the embodiment of the present disclosure, the gravity balance control of the seesaw 51 is used to ensure that the paper tube maintains a certain distance when rolling in the detection area, avoiding excessive proximity between the front and rear paper tubes, thereby improving the stability and continuity of the paper tube during the detection process.

[0055] In one embodiment, the blocking mechanism 50 includes a reset device, which includes a motor and an eccentric wheel connected to the output shaft of the motor. A reset rod is provided at the lower portion of the rocker 51, and the end of the reset rod is suspended on one side of the eccentric wheel. Whenever the eccentric wheel rotates to the target position, the reset rod is driven to move, so that the first protrusion 51a descends.

[0056] In the disclosed embodiment, the center of gravity of the seesaw 51 is set on the side of the second protrusion 51b close to the downstream, so that in a natural state, the first protrusion 51a is tilted and the paper tube cannot enter the seesaw 51. The reset device includes a motor and an eccentric wheel connected to the output shaft of the motor. A reset rod is provided at the lower part of the seesaw 51, and the end of the reset rod is suspended on one side of the eccentric wheel. The design of the eccentric wheel enables it to drive the reset rod to move back and forth during the rotation process.

[0057] In a natural state, the end of the reset rod is in the rotational activity area of ​​the eccentric wheel. When the eccentric wheel rotates to a partial angle, it can contact the end of the reset rod and push it out of the rotational activity area of ​​the eccentric wheel as it rotates. That is, when the eccentric wheel rotates to the target position, it drives the reset rod to move, and the reset rod pushes the first protrusion 51a of the seesaw 51 to descend, allowing the paper tube to enter the middle part 51c of the seesaw 51. After the paper tube enters the middle part 51c of the seesaw 51, the second protrusion 51b descends, and the first protrusion 51a tilts up, blocking the subsequent paper tube from entering. When the second protrusion 51b descends to the lowest point, the paper tube can pass over the second protrusion 51b and enter the sliding section 13. Afterwards, as the eccentric wheel continues to rotate and separates from the reset rod, the reset rod can reset itself by gravity, the first protrusion 51a descends, and the second protrusion 51b tilts up. The above process is repeated when the eccentric wheel rotates to the target position again.

[0058] According to the scheme of the embodiment of the present disclosure, the resetting device realizes the intermittent entry of the paper tube through the cooperation of the motor and the eccentric wheel, and controls the rhythm of the paper tube entering the sliding section 13 through the time interval of the rotation of the eccentric wheel, thereby improving the controllability of the detection process and ensuring that the detection probe 22 is not affected by the excessive proximity of the front and rear paper tubes during the detection process.

[0059] In one embodiment, the sorting mechanism 30 includes a second driving device 52, which is connected to a sorting plate 31, and the sorting plate 31 is arranged on the inner side of any slide rail 11 of the transmission ramp 10. The second driving device 52 is used to quickly lift at least a portion of the sorting plate 31 above the contact surface, so that when the target paper tube passes through the sorting area where the sorting mechanism 30 is located, the target paper tube produces non-axial rotation because one end of the target paper tube is blocked by the sorting plate 31.

[0060] In the disclosed embodiment, the target paper tube can be understood as a paper tube that is unqualified in appearance and needs to be removed from the production line. The sorting mechanism 30 includes a second drive device 52, such as a cylinder or a motor, for quickly controlling the movement of the sorting plate 31. The sorting plate 31 is arranged on the inner side of any slide rail 11 of the transmission ramp 10, usually the inner edge of the slide rail 11. When the detection system identifies an unqualified paper tube (target paper tube), the second drive device 52 is started to quickly lift at least part of the sorting plate 31 above the contact surface of the slide rail 11. The height of the lifting of the sorting plate 31 is sufficient to block the rolling path of the target paper tube. When the target paper tube rolls to the sorting area, the paper tube will produce non-axial rotation because one end of it is blocked by the lifted sorting plate 31. The non-axial rotation angle of the paper tube is sufficient to make it deviate from the original rolling path and enter the sorting area. The sorting area is designed on the outside or below the slide rail 11 to receive the sorted paper tubes. Once the target paper tube is successfully sorted, the second driving device 52 quickly resets the sorting plate 31 to below the contact surface of the slide rail 11. Ensure that the sorting plate 31 is quickly reset to avoid affecting the normal rolling of subsequent paper tubes.

[0061] According to the solution of the embodiment of the present disclosure, the sorting mechanism 30 realizes the sorting of unqualified paper tubes through the rapid action of the second driving device 52 and the sorting plate 31, ensuring the efficiency, accuracy and stability of the detection process, while reducing the interference with qualified paper tubes and improving production efficiency and product quality.

[0062] In one embodiment, the slide rail 11 at the sorting area is provided with an outward expansion portion 14, and the side plate 11a of the outward expansion portion 14 is bent outward.

[0063] In the disclosed embodiment, the bending angle and length of the side plate 11a are designed according to the size and rolling path of the paper tube to ensure that the paper tube can pass through the sorting area smoothly. The design of the expansion part 14 increases the spacing between the pair of slide rails 11, providing more space for the paper tube to rotate radially during the sorting process. The design of the expansion part 14 allows the paper tube to rotate radially during the sorting process, avoiding the paper tube from being stuck between the slide rails 11 due to insufficient spacing of the side plates 11a.

[0064] In another example, the angle between the sorting plate 31 and the slide rail 11 after it is lifted can be less than 60°, so that the end of the target paper tube that contacts the sorting plate 31 is not blocked and stopped, but can move upward to the slide rail 11 due to the angle between the sorting plate 31 and the slide rail 11, while the other end continues to move downstream of the slide rail 11, resulting in movement in multiple directions. In this way, since one end of the target paper tube moves upward and is higher than the side plate 11a, the target paper tube will not be stuck by the side plate 11a, and the sorting area may not be provided with an expansion portion 14.

[0065] According to the solution of the embodiment of the present disclosure, the provision of the outward expansion portion 14 ensures that the paper tube can smoothly rotate radially during the sorting process, thereby avoiding the problem of the paper tube getting stuck.

[0066] In one embodiment, the sorting plate 31 is a strip-shaped flat plate, and the sorting plate 31 replaces the bottom plate 11b of the slide rail 11 on one side of the sorting area. A rotating shaft is provided at the upstream end of the sorting plate 31, and a shift block 33 is provided on one side of the rotating shaft. The shift block 33 matches the output shaft of the second driving device 52.

[0067] In the disclosed embodiment, the design of the shift block 33 enables the output shaft of the second drive device 52 to drive the shift block 33, thereby driving the sorting plate 31 to rotate. When the detection system identifies an unqualified paper tube (target paper tube), the second drive device 52 is started, and the output shaft rotates to drive the shift block 33, thereby causing the sorting plate 31 to rotate around the rotating shaft. The length of the sorting plate 31 and the angle of rotation can enable one end of the sorting plate 31 to be lifted above the contact surface of the slide rail 11, blocking the rolling path of the target paper tube.

[0068] Once the target paper tube is successfully sorted, the output shaft of the second driving device 52 rotates in the opposite direction, driving the shift block 33, so that the sorting plate 31 rotates around the rotating shaft and resets below the contact surface of the slide rail 11. Alternatively, the output shaft is disengaged from the shift block 33, allowing the sorting plate 31 to reset itself by gravity, and the downstream end of the sorting plate 31 can be placed on the end of the bottom plate 11b of the downstream slide rail 11.

[0069] According to the solution of the embodiment of the present disclosure, the sorting plate 31 realizes rapid lifting and resetting actions through the cooperation of the rotating shaft and the shifting block 33, thereby ensuring the sorting of unqualified paper tubes.

[0070] In one embodiment, the sorting mechanism 30 includes a third driving device 32, which is connected to a sorting plate 31. The width of the sorting plate 31 is the same as the width of the bottom plate 11b. The slide rail 11 of the sorting area is not provided with a bottom plate 11b. The two ends of the sorting plate 31 are respectively abutted against the upstream and downstream bottom plates 11b of the sorting area to replace the bottom plate 11b of the slide rail 11 of the sorting area. The third driving device 32 is used to move the sorting plate 31 in a direction perpendicular to the side plate 11a so that the sorting plate 31 switches between the inner side and the outer side of the side plate 11a.

[0071] In the disclosed embodiment, the sorting mechanism 30 includes a third drive device 32, such as a cylinder or a motor, for controlling the movement of the sorting plate 31. The sorting plate 31 replaces the bottom plate 11b of the slide rail 11 in the sorting area to provide a support surface for the paper tube. When the detection system identifies an unqualified paper tube (target paper tube), the third drive device 32 is started to drive the sorting plate 31 to translate toward the outside of the slide rail 11 in a direction perpendicular to the side plate 11a, so that the slide rail 11 in the sorting area does not have a structure to support the paper tube. After entering the sorting area, the target paper tube will lose its support surface and fall directly into the sorting area below the slide rail 11. Once the target paper tube is successfully sorted, the third drive device 32 reinserts the sorting plate 31 into the inner side of the slide rail 11 to achieve rapid resetting to avoid affecting the normal rolling of subsequent paper tubes.

[0072] It should be noted that, since the spacing of the side plates 11a matches the diameter of the paper tube, the sorting plate 31 only needs to partially enter the inner side of the side plate 11a to support the subsequent non-defective paper tube so that it can slide normally to the downstream of the transmission ramp 10. In this way, the minimum spacing between the front and rear paper tubes can be reduced.

[0073] According to the solution of the embodiment of the present disclosure, the sorting plate 31 can quickly switch between the inner side and the outer side of the side plate 11a through the control of the third driving device 32, so as to realize the sorting of unqualified paper tubes. The sorting plate 31 replaces the bottom plate 11b of the sorting area, ensuring that the paper tubes can directly fall into the sorting area during the sorting process and quickly reset after sorting, thereby improving the efficiency, accuracy and stability of the detection process.

[0074] The main types of yarns involved in the solution of the embodiment of the present disclosure may include one or more of Partially Oriented Yarns (POY), Fully Drawn Yarns (FDY), Draw Textured Yarns (DTY) (or called low-elastic yarns), etc. For example, the types of yarns may specifically include Polyester Partially Oriented Yarns, Polyester Fully Drawn Yarns, Polyester Drawn Yarns, Polyester Draw Textured Yarns, etc.

[0075] The other components of the paper tube appearance inspection device in the above embodiment may adopt various technical solutions known to ordinary technicians in this field now and in the future, and will not be described in detail here.

[0076] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0077] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0078] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0079] In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0080] The disclosure above provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0081] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A paper tube external inspection device, comprising: The transmission ramp (10) comprises a pair of slide rails (11) arranged in parallel at a preset interval, the slide rails (11) comprising a contact surface formed by a bottom plate (11b) and extending along the length direction of the slide rails (11) and a vertical plane formed by a side plate (11a); the paper tube (40) to be inspected is fed into one end of the transmission ramp (10) in an axial direction perpendicular to the vertical plane, and is restricted by the side plates (11a) of the pair of slide rails (11) to move or roll on the contact surface; the transmission ramp (10) comprises a front section (12) located upstream in the transmission direction and a sliding section (13) connected to the front section (12); The appearance detection mechanism (20) comprises a box (21) and a detection probe (22); the detection probe (22) is arranged above the sliding section (13) and faces the slide rail (11) of the sliding section (13); the area in the transmission ramp (10) covered by the detection range of the detection probe (22) is the detection zone; the box (21) surrounds the detection probe (22) and the detection zone; the box (21) at both ends of the detection zone is provided with an entrance and exit for the paper tube (40) to be inspected to enter and exit; when the paper tube (40) to be inspected passes through the detection zone, its appearance features are collected by the detection probe (22); A sorting mechanism (30) is arranged beside the transmission ramp (10) downstream of the detection area, the sorting mechanism (30) comprising a sorting plate (31), the sorting plate (31) being used to separate the target paper tube from the slide rail (11) so as to be separated from the transmission ramp (10); Wherein, the preset spacing matches the height of the paper tube (40) to be inspected and is greater than the diameter of the paper tube (40) to be inspected.

2. The paper tube external inspection device according to claim 1, wherein: A resistance layer (23) is provided on the contact surface of a pair of slide rails (11) located in the detection area. The resistance layer (23) has a first friction coefficient, which is greater than the friction coefficient of the contact surface of the slide rails (11), so that the paper tube (40) to be inspected rolls when passing through the detection area; wherein the length of the detection area is greater than the circumference of the paper tube.

3. The paper tube external inspection device according to claim 1, wherein: The inclination angle between the two ends of the sliding section (13) is greater than the inclination angle of the front section (12).

4. The paper tube external inspection device according to claim 1, wherein: A blocking mechanism (50) is provided at the end of the front section (12), and the blocking mechanism (50) is used to allow the paper tubes (40) to be inspected to enter the sliding section (13) at intervals.

5. The paper tube external inspection device according to claim 4, wherein: The blocking mechanism (50) comprises a telescopic claw and a first driving device. Under the drive of the first driving device, the front end of the telescopic claw penetrates into the forward direction of the paper tube (40) to be inspected at a preset time interval to block the paper tube (40) to be inspected located in the front section (12) from entering the sliding section (13).

6. The paper tube external inspection device according to claim 4, wherein: The blocking mechanism (50) comprises a seesaw (51) arranged between a pair of slide rails (11), the seesaw (51) comprising a first protrusion (51a) located upstream in the transmission direction, a second protrusion (51b) located downstream in the transmission direction, and a middle portion (51c) therebetween, the middle portion (51c) being connected to the pair of slide rails (11) via a rotating shaft, the first protrusion (51a) and the second protrusion (51b) swinging with the rotating shaft so that the highest point of the first protrusion (51a) or the second protrusion (51b) drops to the plane where the contact surface of the slide rail (11) at the corresponding position is located; the middle portion (51c) can accommodate a paper tube (40) to be inspected, and the seesaw (51) allows a paper tube (40) to be inspected to enter the slide section (13) each time it swings back and forth.

7. The paper tube external inspection device according to claim 6, wherein: The blocking mechanism (50) comprises a reset device, which comprises a motor and an eccentric wheel connected to the output shaft of the motor. A reset rod is provided at the lower part of the seesaw (51), and the end of the reset rod is suspended on one side of the eccentric wheel. Whenever the eccentric wheel rotates to a target position, it drives the reset rod to move, so that the first protrusion (51a) descends.

8. The paper tube external inspection device according to claim 1, wherein: The sorting mechanism (30) comprises a second driving device (52), the second driving device (52) being connected to the sorting plate (31), the sorting plate (31) being arranged on the inner side of any slide rail (11) of the transmission ramp (10), the second driving device (52) being used for rapidly lifting at least a portion of the sorting plate (31) above a contact surface, so that when a target paper tube passes through a sorting area where the sorting mechanism (30) is located, the target paper tube generates a non-axial rotation due to one end of the target paper tube being blocked by the sorting plate (31).

9. The paper tube external inspection device according to claim 8, wherein: The slide rail (11) at the location of the sorting area is provided with an outward expansion portion (14), and the side plate (11a) of the outward expansion portion (14) is bent outward.

10. The paper tube external inspection device according to claim 8, wherein: The sorting plate (31) is a strip-shaped flat plate. The sorting plate (31) replaces the bottom plate (11b) of the slide rail (11) on one side of the sorting area. A rotating shaft is provided at the upstream end of the sorting plate (31). A shifting block (33) is provided on one side of the rotating shaft. The shifting block (33) matches the output shaft of the second driving device (52).

11. The paper tube external inspection device according to claim 1, wherein: The sorting mechanism (30) comprises a third driving device (32), the third driving device (32) is connected to the sorting plate (31), the width of the sorting plate (31) is the same as the width of the bottom plate (11b), the slide rail (11) of the sorting area is not provided with a bottom plate (11b), the two ends of the sorting plate (31) are respectively against the bottom plates (11b) at the upstream and downstream of the sorting area, so as to replace the bottom plate (11b) of the slide rail (11) of the sorting area; the third driving device (32) is used to move the sorting plate (31) in a direction perpendicular to the side plate (11a), so that the sorting plate (31) switches between the inner side and the outer side of the side plate (11a).

Images