An on-line detection device for non-smoking substance area array spectral imaging

Abstract

The present invention discloses a non-smoke substance area array spectral imaging on-line detection device, belonging to the technical field of intelligent manufacturing and industrial automation. The device includes a first vertical lifting mechanism, a horizontal telescopic mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, a camera assembly assembled on the horizontal telescopic mechanism and capable of moving horizontally, a second vertical lifting mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, and a light source assembly assembled on the second vertical lifting mechanism. Compared with the prior art, the beneficial effects of the present invention are as follows: It can solve the technical problems in the tobacco industry that the accuracy of manually identifying tobacco leaf sundries is low, and the existing sundry detection devices cannot adapt to various different assembly line conveyor belt scenarios.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent manufacturing and industrial automation, and particularly relates to an on-line detection device for non-tobacco substance area array spectral imaging. Background Art

[0002] In the process of converting tobacco leaves from raw materials to finished cigarettes, various processes progress step by step, and the mixing of any impurities may seriously affect the quality and purity of the finished cigarettes. Traditionally, the identification of sundries on the tobacco leaf production line mainly relies on manual visual inspection. This method is limited by the operator's visual ability, color discrimination ability, and personal states such as emotions and fatigue. These limiting factors may all lead to inaccurate detection and low efficiency. In addition, the change of ambient light may also interfere with the accuracy of manual identification.

[0003] With the development of intelligent manufacturing technology, automation and intelligence have become the main trends in the transformation of modern factories. In this context, machine vision technology has been gradually introduced into industrial production lines to replace traditional manual inspection methods and improve the accuracy and efficiency of detection. However, existing machine vision detection devices are often bulky and difficult to flexibly adapt to the changing production line environment. The light source is often damaged due to collisions during use, resulting in the need for the device to stop for maintenance. Therefore, developing a new type of machine vision device with a moderate volume, strong adaptability, capable of efficiently and accurately completing detection tasks, and effectively protecting the light source has become the key to improving the automation level of the production line. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide an on-line detection device for non-tobacco substance area array spectral imaging, which can solve the technical problems in the tobacco industry of low accuracy in identifying tobacco leaf sundries by manual labor and the inability of existing sundry detection devices to adapt to various different production line conveyor belt scenarios, and can also effectively protect the light source.

[0005] To solve the above technical problems, the present invention is implemented as follows:

[0006] An embodiment of the present invention provides a non-smoking substance area array spectral imaging on-line detection device, which includes a first vertical lifting mechanism, a horizontal telescopic mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, a camera assembly assembled on the horizontal telescopic mechanism and capable of moving horizontally, a second vertical lifting mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, and a light source assembly assembled on the second vertical lifting mechanism. The light source assembly includes a light source frame installed on the second vertical lifting mechanism and a light source assembled on the light source frame. The light source frame is provided with a straight slot, the light source is provided with a nut slot, a light source protection trigger rod is arranged in the nut slot, and the light source and the light source frame are connected by a light source protection bolt top bolt and a light source protection bolt catch. The light source protection bolt top bolt is provided with a spring bead that can retract under force. After the light source assembly is installed, the light source protection bolt top bolt and the light source protection bolt catch are locked. When the light source protection trigger rod collides and slides in the nut slot of the light source, the spring bead of the light source protection bolt top bolt is pushed to retract, and the light source protection bolt top bolt and the light source protection bolt catch are loosened, so that the light source slides in the straight slot of the light source frame, and then the light source is retracted by relying on the external force of the collision, avoiding the light source from being collided.

[0007] Optionally, it further includes a steel frame control box. The first vertical lifting mechanism is installed on the top of the steel frame control box. The steel frame control box is a cavity structure surrounded by a frame. The steel frame control box includes a mounting plate, a transformer, a motor drive controller, a light source controller, and a wire slot pipe installed on the mounting plate.

[0008] Optionally, the first vertical lifting mechanism includes a slider track body fixedly arranged at the top of the steel frame control box, a first motor installed on the top of the slider track body, a first lead screw arranged beside the slider track body and driven to rotate by the first motor, and a first slider screwed on the first lead screw and sliding up and down along the slider track body. The horizontal telescopic mechanism is fixedly arranged on the first slider.

[0009] Optionally, the second vertical lifting mechanism includes a second motor arranged at the bottom of the slider track body, a second lead screw arranged beside the slider track body and driven to rotate by the second motor, and a second slider screwed on the second lead screw and sliding up and down along the slider track body. The light source frame is fixedly arranged on the second slider.

[0010] Optionally, the light source frame includes a main rod fixedly arranged on the second slider and two sub-rods respectively arranged at both ends of the main rod and spaced parallel to each other. One light source is fixedly arranged on each sub-rod.

[0011] Optionally, the light source assembly further includes an adjusting device disposed on the main rod and used for adjusting the distance between the two light sources and the light projection angle. The adjusting device includes a bidirectional threaded tube, a handle, an extending threaded rod, a first connecting rod, a second connecting rod, a third connecting rod, a third slider, a fourth connecting rod, a first locking button, a first meshing lock disc, a second meshing lock disc, and a meshing lock disc bearing. The bidirectional threaded tube is disposed at the middle position of the main rod. The handle is connected to the bidirectional threaded tube for controlling the rotation of the bidirectional threaded tube. One extending threaded rod is disposed at each end of the bidirectional threaded tube. The third slider is slidably assembled in the slide rail of the first meshing lock disc. The head end of the first connecting rod is connected to the end of the telescopic threaded rod away from the bidirectional threaded tube, and the tail end is connected to the head end of the second connecting rod. The tail end of the second connecting rod is connected to the head end of the third connecting rod. The tail end of the third connecting rod is connected to the third slider. The third slider and the first locking button are connected by the fourth connecting rod. The secondary rod is rotatably assembled on the main rod through the meshing lock disc bearing. By opening and locking the first locking button, the third slider is driven to slide in the slide rail of the first meshing lock disc. When the second locking button is in the open state, the teeth of the first meshing lock disc and the second meshing lock disc are not meshed. At this time, the axis of the third slider and the first meshing lock disc are on the same horizontal line, and the meshing lock disc bearings on both sides loosen the clamping of the light source holder. At this time, turning the handle on the bidirectional threaded tube drives the extending threaded rod to extend or retract. Since the axis of the third slider and the first meshing lock disc are on the same horizontal line, no torque is generated on the axis of the first meshing lock disc, and only the first meshing lock disc is pushed or pulled to move along the cutting groove direction on the main rod, thereby pulling the light sources to move towards or away from each other. When the second locking button is in the locked state, the teeth of the first meshing lock disc and the second meshing lock disc are meshed. At this time, the axis of the third slider and the first meshing lock disc are not on the same horizontal line, and the meshing lock disc bearings on both sides clamp the light source holder. At this time, turning the handle on the bidirectional threaded tube drives the extending threaded rod to extend or retract, and further drives the third connecting rod to extend or retract. Since the axis of the third slider and the first meshing lock disc are not on the same horizontal line, the light source is pushed or pulled by the torque to rotate around the axis through the lock disc bearing, thereby realizing the adjustment of the light projection angle of the light source.

[0012] Optionally, the lateral telescopic mechanism includes a connecting plate fixedly disposed on the first slider, a third motor mounted on the connecting plate, a grooved slide rail with one end mounted on the third motor, an extending driving rod mounted on the output end of the third motor, and an extending rod received in the grooved slide rail and connected to the extending driving rod at one end.

[0013] Optionally, the camera assembly includes a camera-telescopic connection plate fixedly provided at the other end of the telescopic rod, a mounting plate bottom plate fixedly provided on the camera-telescopic connection plate, a mounting plate top plate clamped on the mounting plate bottom plate, a camera mounted on the mounting plate top plate, a mounting plate clamping plate for clamping the mounting plate top plate on the mounting plate bottom plate, and a mounting plate knob for fixing the mounting plate clamping plate. A clamping groove is provided on the mounting plate top plate, and a clamping protrusion matching the clamping groove is provided on the mounting plate bottom plate. The relative horizontal sliding of the mounting plate top plate and the mounting plate bottom plate is restricted through the cooperation of the clamping groove and the clamping protrusion.

[0014] Optionally, it further includes a protection device provided on the first vertical lifting mechanism and used for protecting and locking the first lead screw when the locking of the first lead screw fails. The protection device includes a centrifugal runner threadedly connected to the first lead screw and connected to the camera-lead screw connection plate through a centrifugal snap bearing. A notch is provided on the centrifugal runner, and a protrusion is provided on the centrifugal snap. The arc length of the notch on the centrifugal runner is greater than the arc length of the protrusion on the centrifugal snap. The centrifugal runner drives the centrifugal snap to rotate through the cooperation of the notch and the protrusion on the centrifugal snap. When the first lead screw runs at a small acceleration, the centrifugal snap rotates relative to the first lead screw along with the centrifugal runner, and the protection device does not work. When the locking of the first lead screw fails due to an accident, the camera assembly drops due to gravity, driving the first lead screw to rotate at a large acceleration, and then driving the centrifugal runner to rotate at an accelerated speed. When the centrifugal snap is subjected to a large centrifugal force, the protrusion on the centrifugal snap shifts in the notch on the centrifugal runner, and the centrifugal snap is thrown out, and the protection device works. The teeth on the centrifugal snap are engaged with the teeth on the camera-lead screw connection plate, so that the centrifugal snap stops rotating, and then the first lead screw is locked to prevent the camera assembly from continuing to drop.

[0015] Optionally, the camera assembly further includes a blowing port installed below the camera and an air pump installed on the camera-telescopic connection plate and connected to the blowing port. The edge of the blowing port is tangent to the lower edge of the camera.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By integrating the control elements inside the steel frame control box, the miniaturization of the equipment is effectively realized, making it more convenient to operate in a narrow space.

[0018] 2. Two sets of lead screw drive mechanisms are configured to respectively adjust the heights of the camera and the light source; by electrically lifting the camera, the equipment can adapt to the assembly line conveyors at different heights, so as to meet the detection requirements under various height conditions.

[0019] 3. The height of the light source can also be adjusted electrically, and a light source controller is equipped to adjust the light intensity, enabling the device to respond flexibly according to different external lighting environments and the height of the conveyor belt.

[0020] 4. The device is also provided with a lateral telescopic mechanism, which can adjust the horizontal position of the camera according to the width of the assembly line conveyor belt to ensure wide adaptability.

[0021] 5. A blowing device is equipped for the camera to prevent the device from malfunctioning due to the camera lens being covered by dust, improving the device's ability to handle complex detection environments.

[0022] 6. A dual protection device is set for the light source and the camera. When the device is accidentally damaged, it can protect important components to the greatest extent and minimize the degree of loss.

[0023] 7. By setting an adjusting device, the distance between the two light sources and the lighting angle of the light source can be adjusted, so as to adapt to more working environments.

[0024] 8. By setting a protection device, it can effectively prevent the camera assembly from falling and being damaged after the screw rod locking fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, where:

[0026] Figure 1 is one of the overall structure diagrams of the present invention;

[0027] Figure 2 is another overall structure diagram of the present invention;

[0028] Figure 3 is the top view of the overall structure of the present invention;

[0029] Figure 4 is the extended state diagram of the lateral telescopic mechanism of the present invention;

[0030] Figure 5 is Figure 1 the enlarged view at A in

[0031] Figure 6 is Figure 2 the enlarged view at C in

[0032] Figure 7 is Figure 2 the enlarged view at B in

[0033] Figure 8 is Figure 3 the enlarged view at position D in

[0034] Figure 9 is Figure 2 the partial view in the E direction in

[0035] Figure 10 the schematic diagram of the installation structure of the camera component of the present invention;

[0036] Figure 11 is the third schematic diagram of the overall structure of the present invention;

[0037] Figure 12 is the fourth schematic diagram of the overall structure of the present invention;

[0038] Figure 13 is the schematic diagram of the structure of the light source protection trigger rod and the light source protection bolt plug of the present invention;

[0039] Figure 14 is the schematic diagram of the assembly structure of the light source protection bolt catch and the spring top bead of the present invention;

[0040] Figure 15 is the schematic diagram of the clamping structure between the light source and the light source holder of the present invention;

[0041] Figure 16 is the schematic diagram of the structure of the protection device of the present invention;

[0042] Figure 17 is Figure 16 the sectional structure schematic diagram of the A-A line in

[0043] Figure 18 is the schematic diagram of the structure of the adjusting device on the light source holder of the present invention. Specific Embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] The terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances, so that the embodiments of the present invention can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0046] Please refer to Figures 1 to 18 As shown, the embodiment of the present invention provides a non-smoke substance area array spectral imaging on-line detection device, including a steel frame control box 3, a first vertical lifting mechanism installed on the top of the steel frame control box 3, a horizontal telescopic mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, a camera assembly assembled on the horizontal telescopic mechanism and capable of moving horizontally, a second vertical lifting mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, and a light source assembly assembled on the second vertical lifting mechanism.

[0047] Specifically in combination with Figure 7 As shown, a steel frame chassis 2 is further provided at the bottom of the steel frame control box 3, and a plurality of universal wheels 1 and a second locking button 31 for locking the universal wheels 1 are provided at the bottom of the steel frame chassis 2. In this way, by opening the second locking button 31 of the universal wheels 1, the device can be pushed to a suitable detection station.

[0048] Specifically in combination with Figure 1 As shown, the steel frame control box 3 is a cavity structure surrounded by a frame. The steel frame control box 3 includes a mounting plate 7, a transformer 5, a motor drive controller 6, a light source controller 8, a wire duct 4, etc. installed on the mounting plate 7. By integrating each control element in the steel frame control box 3, the miniaturization of the device volume is achieved.

[0049] Furthermore, specifically in combination with Figure 12 As shown, the steel frame control box 3 further includes a housing 42 provided on the frame for dust prevention.

[0050] Refer to again Figure 1 and Figure 2As shown, the first vertical lifting mechanism includes a slider track body 16 fixedly installed at the top of the steel frame control box 3, a first motor 21 installed on the top of the slider track body 16, a first lead screw 11 disposed beside the slider track body 16 and driven to rotate by the first motor 21, and a first slider 17 screwed onto the first lead screw 11 and sliding up and down along the slider track body 16. The transverse telescoping mechanism is fixedly installed on the first slider 17. In this way, the motor drive controller 6 can control the rotation of the first motor 21. The first motor 21 drives the first lead screw 11 to rotate through a coupling 22. The first slider 17 slides up and down on the slider track body 16 as the first lead screw 11 rotates, thereby driving the camera group to lift to an appropriate detection height.

[0051] Further, in combination with Figure 11 and Figure 12 as shown, a first dust cover 41 and a second dust cover 45 for dust prevention are further provided on the slider track body 16.

[0052] Combined with Figure 5 and Figure 6 as shown, the slider track body 16 is fixed to the top of the steel frame control box 3 through a T-shaped connecting plate 9. A travel limit switch 39 for preventing the camera assembly and the light source assembly from colliding with the plane of the conveyor belt of the pipeline to be detected is installed on the slider track body 16 and the T-shaped connecting plate 9. The installation height of the travel limit switch 39 is determined by the plane of the conveyor belt of the pipeline to be detected.

[0053] Referring to Figure 2 as shown, the second vertical lifting mechanism includes a second motor 25 disposed at the bottom of the slider track body 16, a second lead screw 28 disposed beside the slider track body 16 and driven to rotate by the second motor 25, and a second slider 27 screwed onto the second lead screw 28 and sliding up and down along the slider track body 16. The light source assembly is fixedly installed on the second slider 27.

[0054] Further, specifically in combination with Figure 12 as shown, a motor dust cover 44 for dust prevention is further provided on the second motor 25.

[0055] Combined with Figure 1 , Figure 3 and Figure 4 as shown, the transverse telescoping mechanism includes a connecting plate 18 fixedly installed on the first slider 17, a third motor 23 installed on the connecting plate 18, a grooved slide rail 24 with one end installed on the third motor 23, an extending drive rod 34 installed at the output end of the third motor 23, and an extending rod 33 accommodated in the grooved slide rail 24 and connected to the extending drive rod 34 at one end.

[0056] Further, the third motor 23 can be controlled to rotate by the motor drive controller 6. The third motor 23 drives the extension drive rod 34 to rotate. The rotation of the extension rod 33 is restricted by the grooved slide rail 24. The extension drive rod 34 drives the extension rod 33 to extend and retract to a suitable detection position through the chute.

[0057] Combined with Figure 2 、 Figure 8 and Figure 10 As shown, the camera assembly includes a camera-extension connecting plate 29 fixedly arranged at the other end of the extension rod 33, a mounting plate bottom plate 36 fixedly arranged on the camera-extension connecting plate 29, a mounting plate top plate 35 clamped on the mounting plate bottom plate 36, a camera 32 mounted on the mounting plate top plate 35, a mounting plate clamping plate 37 for clamping the mounting plate top plate 35 on the mounting plate bottom plate 36, and a mounting plate knob 38 for fixing the mounting plate clamping plate 37. A clamping groove is arranged on the mounting plate top plate 35, and a clamping protrusion matched with the clamping groove is arranged on the mounting plate bottom plate 36. The relative horizontal sliding of the mounting plate top plate 35 and the mounting plate bottom plate 36 is restricted through the cooperation of the clamping groove and the clamping protrusion.

[0058] Further, a threaded hole is arranged on the mounting plate bottom plate 36 and is in threaded cooperation with the mounting plate knob 38. A round hole is formed on the mounting plate clamping plate 37, and a bearing is installed in the hole. The bearing is clamped with the mounting plate knob 38, so that the mounting plate knob 38 can drive the mounting plate clamping plate 37 to be screwed into the mounting plate bottom plate 36. The mounting plate clamping plate 37 and the mounting plate bottom plate 36 respectively have protruding parts and groove guides, restricting the two from flipping relative to each other.

[0059] Combined with Figures 13 to 15 As shown, the light source assembly includes a light source bracket 14 mounted on the second slider 27 and a light source 15 assembled on the light source bracket 14. The light source bracket 14 is provided with a straight notch, the light source 15 is provided with a nut notch, and a light source protection trigger rod 46 is arranged in the nut notch. The light source 15 and the light source bracket 14 are connected through a light source protection bolt top bolt 47 and a light source protection bolt catch 48.

[0060] The second motor 25 can be controlled to rotate by the motor drive controller 6. The second motor 25 drives the second lead screw 28 to rotate through the transmission gear 26. The second slider 27 slides up and down on the slider track body 16 along with the rotation of the second lead screw 28, and then drives the light source group to lift to a suitable light-emitting height.

[0061] The light source protection bolt top bolt 47 is provided with a spring top bead 49 that can retract under force. After the light source 15 is installed, the light source protection bolt top bolt 47 and the light source protection bolt catch 48 are locked. When the light source protection trigger rod 46 collides and slides in the nut slot of the light source 15, it pushes the spring top bead 49 of the light source protection bolt top bolt 47 to retract, and the light source protection bolt top bolt 47 and the light source protection bolt catch 48 are loosened, allowing the light source 15 to slide in the straight slot of the light source holder 14. Then, relying on the external force of the collision, the light source 15 is retracted to prevent the light source 15 from being collided.

[0062] The light source holder 14 includes a main rod 141 fixed on the second slider 27 and two sub-rods 142 respectively arranged at both ends of the main rod 141 and spaced parallel to each other. Each sub-rod 142 is fixed with a light source 15.

[0063] Combined with Figures 16 to 18As shown, the light source assembly further includes an adjusting device disposed on the main rod 141 and used for adjusting the distance between the two light sources 15 and the light projection angle. The adjusting device includes a bidirectional threaded tube 50, a handle 51, an extending threaded rod 52, a first connecting rod 53, a second connecting rod 54, a third connecting rod 55, a third slider 56, a fourth connecting rod 57, a first locking button 58, a first meshing lock disc 59, a second meshing lock disc 60, and a meshing lock disc bearing 61. The bidirectional threaded tube 50 is disposed at the middle position of the main rod. The handle 51 is connected to the bidirectional threaded tube 50 for controlling the rotation of the bidirectional threaded tube 50. One extending threaded rod 52 is disposed at each end of the bidirectional threaded tube 50. The third slider 56 is slidably assembled in the slide rail of the first meshing lock disc 59. The head end of the first connecting rod 53 is connected to the end of the telescopic threaded rod away from the bidirectional threaded tube 50, and the tail end is connected to the head end of the second connecting rod 54. The tail end of the second connecting rod 54 is connected to the head end of the third connecting rod 55. The tail end of the third connecting rod 55 is connected to the third slider 56. The third connecting rod 55 is connected to the chute of the cylindrical protrusion 143 on the light source holder 14. The third slider 56 is connected to the first locking button 58 through the fourth connecting rod 57. The auxiliary rod 142 is rotatably assembled on the main rod 141 through the meshing lock disc bearing 61. By opening and locking the first locking button 58, the third slider 56 is driven to slide in the slide rail of the first meshing lock disc 59. When the second locking button 31 is in the open state, the teeth of the first meshing lock disc 59 and the second meshing lock disc 60 are not meshed. At this time, the axis of the third slider 56 and the first meshing lock disc 59 are on the same horizontal line, and the meshing lock disc bearings 61 on both sides loosen the clamping of the light source holder 14. At this time, rotate the handle 51 on the bidirectional threaded tube 50 to drive the extending threaded rod 52 to extend or retract. Since the axis of the third slider 56 and the first meshing lock disc 59 are on the same horizontal line, no torque is generated on the axis of the first meshing lock disc 59, and only the first meshing lock disc 59 is pushed or pulled to move along the cutting groove direction on the main rod, thereby pulling the light sources to move towards or away from each other. When the second locking button is in the locked state, the teeth of the first meshing lock disc 59 and the second meshing lock disc 60 are meshed. At this time, the axis of the third slider 56 and the first meshing lock disc 59 are not on the same horizontal line, and the meshing lock disc bearings 61 on both sides clamp the light source holder. At this time, rotate the handle 51 on the bidirectional threaded tube 50 to drive the extending threaded rod 52 to extend or retract, and then drive the third connecting rod 55 to extend or retract. Since the axis of the third slider 56 and the first meshing lock disc 59 are not on the same horizontal line, the light source is pushed or pulled by torque to rotate around the axis through the lock disc bearing, thereby realizing the adjustment of the light projection angle of the light source.

[0064] The camera assembly further includes a camera anti-collision frame 30 covering the camera. Specifically, the outer shape of the camera anti-collision frame 30 is larger than the edge of the camera. In case of an accident, the camera anti-collision frame 30 protects the camera 32 from being impacted.

[0065] Combined with Figure 9 As shown, the camera assembly further includes a blowing port 40 installed below the camera 32 and an air pump installed on the camera-telescopic connecting plate 29 and connected to the blowing port 40. The edge of the blowing port 40 is tangent to the lower edge of the camera 32. When the detection device is working, the blowing port 40 blows air to blow the dust raised in the workshop away from the lens surface of the camera 32, ensuring the cleanliness of the camera lens.

[0066] Specifically referring to Figure 16 and Figure 17 As shown, the device further includes a protection device provided on the first vertical lifting mechanism and used for protecting and locking the first lead screw 11 when the locking of the first lead screw 11 fails. The protection device includes a centrifugal runner 62 threadedly connected to the first lead screw 11 and bearing-connected to the camera-lead screw connecting plate 29 through a centrifugal buckle 61. The centrifugal runner 62 is provided with a notch, and the centrifugal buckle 61 is provided with a protrusion. The arc length of the notch on the centrifugal runner 62 is greater than the arc length of the protrusion on the centrifugal buckle 61. The centrifugal runner 62 cooperates with the protrusion on the centrifugal buckle 61 through the notch, thereby driving the centrifugal buckle 61 to rotate. When the first lead screw 11 runs with a small acceleration, the centrifugal buckle 61 rotates relative to the first lead screw 11 along with the centrifugal runner 62, and the protection device does not work. When the locking of the first lead screw 11 fails due to an accident, the camera assembly drops due to gravity, driving the first lead screw 11 to rotate at a large acceleration, and then driving the centrifugal runner 62 to rotate at an accelerated speed. When the centrifugal buckle 61 is subjected to a large centrifugal force, the protrusion on the centrifugal buckle 61 deviates in the notch on the centrifugal runner 62, and the centrifugal buckle 61 is thrown out, and the protection device works. The teeth on the centrifugal buckle 61 are engaged with the teeth on the camera-lead screw connecting plate 29, so that the centrifugal buckle 61 stops rotating, thereby locking the first lead screw 11 and preventing the camera assembly from dropping further.

[0067] The working principle of the non-smoke substance area array spectral imaging on-line detection device provided by the present invention is as follows:

[0068] When it is necessary to adjust the installation position of the detection device, unlock the second locking button 31 of the universal wheel 1 and push the device to a suitable detection position.

[0069] When faced with different detection heights of the pipeline conveyor belt, first power on the device. After voltage conversion by the transformer 5, power is supplied to the first motor 21, camera 32, light source 15, and air pump of the air blower. Operate the motor drive controller 6 to control the rotation of the first motor 21, which in turn drives the first lead screw 11 to rotate between the first lead screw bearing block 10 and the slider track body cover plate 20, and then drives the first slider 17 to move up and down on the slider track body 16, and then drives the horizontal telescopic mechanism and the camera to move up and down so that the camera 32 reaches an appropriate detection height. The light source 15 illuminates the detection range, and the camera 32 continuously takes pictures of the detection range and performs subsequent processing on the collected data to obtain the detection result.

[0070] When faced with different lighting environments and pipeline conveyor belt heights, first power on the device. After voltage conversion by the transformer 5, power is supplied to the second motor 25, camera 32, light source 15, and air pump of the air blower. Operate the motor drive controller 6 to control the rotation of the second motor 25, which in turn drives the second lead screw 28 to rotate between the T-shaped connecting plate 9 and the slider track body cover plate 20, and then drives the second slider 27 to move up and down on the slider track body 16, and then drives the light source assembly to move up and down so that the light source 15 reaches an appropriate detection height. The light source 15 illuminates the detection range, and operate the light source controller 8 to adjust the light source 15 to an appropriate brightness. The camera 32 continuously takes pictures of the detection range and performs subsequent processing on the collected data to obtain the detection result.

[0071] When faced with different widths of the pipeline conveyor belt, first power on the device. After voltage conversion by the transformer 5, power is supplied to the third motor 23, camera 32, light source assembly, and air pump of the air blower. Operate the motor drive controller 6 to control the rotation of the third motor 23, which in turn drives the extension drive rod 34 to rotate, and then drives the extension rod 33 to extend to an appropriate position. Manually adjust the mounting bolts between the light source 15 and the light source bracket 14, and manually adjust the light source to extend to an appropriate position. The light source illuminates the detection range, and the camera 32 continuously takes pictures of the detection range and performs subsequent processing on the collected data to obtain the detection result.

[0072] When faced with different operating conditions of the pipeline conveyor belt, the installation position of the travel limit switch 39 changes with the height of the pipeline conveyor belt so that it is always higher than the detection plane of the pipeline conveyor belt. When the camera group and the light source group are about to collide with the detection plane of the pipeline conveyor belt due to the operator's mistake or other situations, the collision with the travel limit switch 39 causes the motor to power off, avoiding damage to the device and the detection plane of the pipeline conveyor belt. When the device is collided by a mobile device or other accidental situations occur and the device topples over, the mounting bolts of the light source 15 can slide in the straight slot of the light source bracket 14 so that the light source retracts, and the camera anti-collision frame 30 protects the camera 32 from collision.

[0073] It should be noted that, in this document, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including such element.

[0074] In addition, it should be pointed out that the scope of the methods and systems in the embodiments of the present invention is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0075] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the present invention and the claims, and all of them fall within the protection scope of the present invention.

Claims

1. An on-line detection device for non-smoke substance area array spectral imaging, characterized in that, It includes a first vertical lifting mechanism, a horizontal telescopic mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, a camera assembly assembled on the horizontal telescopic mechanism and capable of moving horizontally, a second vertical lifting mechanism assembled on the first vertical lifting mechanism and capable of moving up and down, and a light source assembly assembled on the second vertical lifting mechanism. The light source assembly includes a light source bracket installed on the second vertical lifting mechanism and a light source assembled on the light source bracket. The light source bracket is provided with a straight notch, the light source is provided with a nut notch, a light source protection trigger rod is arranged in the nut notch, and the light source and the light source bracket are connected by a light source protection bolt top bolt and a light source protection bolt catch. The light source protection bolt top bolt is provided with a spring bead that can retract under force. After the light source assembly is installed, the light source protection bolt top bolt and the light source protection bolt catch are locked. When the light source protection trigger rod collides and slides in the nut notch of the light source, it pushes the spring bead of the light source protection bolt top bolt to retract, and the light source protection bolt top bolt and the light source protection bolt catch are loosened, so that the light source slides in the straight notch of the light source bracket, and then the light source is retracted by relying on the external force of the collision, avoiding the light source from being collided.

2. The non-smoking material area array spectral imaging on-line detection device according to claim 1, characterized in that, It further includes a steel frame control box. The first vertical lifting mechanism is installed on the top of the steel frame control box. The steel frame control box is a cavity structure surrounded by a frame. The steel frame control box includes a mounting plate, a transformer, a motor drive controller, a light source controller, and a wire slot pipe installed on the mounting plate.

3. The non-smoking material area array spectral imaging on-line detection device according to claim 2, characterized in that, The first vertical lifting mechanism includes a slider track body with the bottom end fixed on the top of the steel frame control box, a first motor installed on the top of the slider track body, a first lead screw arranged beside the slider track body and driven to rotate by the first motor, and a first slider screwed on the first lead screw and sliding up and down along the slider track body. The horizontal telescopic mechanism is fixed on the first slider.

4. The non-smoking substance area array spectral imaging on-line detection device according to claim 3, characterized in that, The second vertical lifting mechanism includes a second motor arranged at the bottom of the slider track body, a second lead screw arranged beside the slider track body and driven to rotate by the second motor, and a second slider screwed on the second lead screw and sliding up and down along the slider track body. The light source bracket is fixed on the second slider.

5. The non-smoking material area array spectral imaging on-line detection device according to claim 4, characterized in that The light source bracket includes a main rod fixed on the second slider and two sub-rods respectively arranged at both ends of the main rod and parallel and spaced apart. One light source is fixed on each sub-rod.

6. The non-smoking substance area array spectral imaging on-line detection device according to claim 5, characterized in that The light source assembly further includes an adjusting device disposed on the main rod and used for adjusting the distance between the two light sources and the light projection angle. The adjusting device includes a bidirectional threaded tube, a handle, an extending threaded rod, a first connecting rod, a second connecting rod, a third connecting rod, a third slider, a fourth connecting rod, a first locking button, a first meshing lock disk, a second meshing lock disk, and a meshing lock disk bearing. The bidirectional threaded tube is disposed at the middle position of the main rod. The handle is connected to the bidirectional threaded tube for controlling the rotation of the bidirectional threaded tube. One extending threaded rod is disposed at each end of the bidirectional threaded tube. The third slider is slidably assembled in the slide rail of the first meshing lock disk. The head end of the first connecting rod is connected to the end of the telescopic threaded rod away from the bidirectional threaded tube, and the tail end is connected to the head end of the second connecting rod. The tail end of the second connecting rod is connected to the head end of the third connecting rod. The tail end of the third connecting rod is connected to the third slider. The third slider and the first locking button are connected by the fourth connecting rod. The auxiliary rod is rotatably assembled on the main rod through the meshing lock disk bearing; By opening and locking the first locking button, the third slider is driven to slide in the slide rail of the first meshing lock disk. When the second locking button is in the open state, the teeth of the first meshing lock disk and the second meshing lock disk are not meshed. At this time, the axis of the third slider and the first meshing lock disk are on the same horizontal line, and the clamping of the light source holder by the two side meshing lock disk bearings is released. At this time, rotating the handle on the bidirectional threaded tube drives the extending threaded rod to extend or retract. Since the axis of the third slider and the first meshing lock disk are on the same horizontal line, no torque is generated on the axis of the first meshing lock disk, and only the first meshing lock disk is pushed or pulled to move along the cutting groove direction on the main rod, thereby pulling the light sources to move towards or away from each other. When the second locking button is in the locked state, the teeth of the first meshing lock disk and the second meshing lock disk are meshed. At this time, the axis of the third slider and the first meshing lock disk are not on the same horizontal line, and the two side meshing lock disk bearings clamp the light source holder. At this time, rotating the handle on the bidirectional threaded tube drives the extending threaded rod to extend or retract, and further drives the third connecting rod to extend or retract. Since the axis of the third slider and the first meshing lock disk are not on the same horizontal line, the light source is pushed or pulled by the torque to rotate around the axis through the lock disk bearing, thereby realizing the adjustment of the light projection angle of the light source.

7. The non-smoking substance area array spectral imaging on-line detection device according to claim 3, characterized in that, The lateral telescopic mechanism includes a connecting plate fixedly disposed on the first slider, a third motor mounted on the connecting plate, a grooved slide rail with one end mounted on the third motor, an extending driving rod mounted on the output end of the third motor, and an extending rod received in the grooved slide rail and connected to the extending driving rod at one end.

8. The non-smoking material area array spectral imaging on-line detection device according to claim 7, characterized in that, The camera assembly includes a camera-telescopic connection plate fixedly arranged at the other end of the telescopic rod, a mounting plate bottom plate fixedly arranged on the camera-telescopic connection plate, a mounting plate top plate clamped on the mounting plate bottom plate, a camera mounted on the mounting plate top plate, a mounting plate clamping plate for clamping the mounting plate top plate on the mounting plate bottom plate, and a mounting plate knob for fixing the mounting plate clamping plate. A clamping groove is arranged on the mounting plate top plate, and a clamping protrusion matched with the clamping groove is arranged on the mounting plate bottom plate. The relative horizontal sliding between the mounting plate top plate and the mounting plate bottom plate is restricted through the cooperation of the clamping groove and the clamping protrusion.

9. The non-smoking material area array spectral imaging on-line detection device according to claim 8, characterized in that It further includes a protection device arranged on the first vertical lifting mechanism and used for performing protective locking on the first lead screw when the locking of the first lead screw fails. The protection device includes a centrifugal runner threadedly connected to the first lead screw and connected to the camera-lead screw connection plate through a centrifugal snap bearing. A notch is arranged on the centrifugal runner, and a protrusion is arranged on the centrifugal snap. The arc length of the notch on the centrifugal runner is greater than the arc length of the protrusion on the centrifugal snap. The centrifugal runner drives the centrifugal snap to rotate through the cooperation of the notch and the protrusion on the centrifugal snap. When the first lead screw runs at a small acceleration, the centrifugal snap rotates relative to the first lead screw along with the centrifugal runner, and the protection device does not work. When the locking of the first lead screw fails due to an accident, the camera assembly drops due to gravity, driving the first lead screw to rotate at a large acceleration, and then driving the centrifugal runner to rotate at an accelerated speed. When the centrifugal snap is subjected to a large centrifugal force, the protrusion on the centrifugal snap deflects in the notch on the centrifugal runner, and the centrifugal snap is thrown out, and the protection device works. The teeth on the centrifugal snap are engaged with the teeth on the camera-lead screw connection plate, so that the centrifugal snap stops rotating, and then the first lead screw is locked to prevent the camera assembly from dropping continuously.

10. The non-smoking substance area array spectral imaging on-line detection device according to claim 8, characterized in that, The camera assembly further includes a blowing port arranged below the camera and an air pump arranged on the camera-telescopic connection plate and connected to the blowing port. The edge of the blowing port is tangent to the lower edge of the camera.

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