Visual identification lens cleaning device for mineral separation

Abstract

An industrial camera is installed above a conveying belt through a supporting frame, a glass sheet is arranged below the industrial camera, and the lower end face of the glass sheet is cleaned through a reciprocating rubber scraper and / or an air nozzle. The device is installed and combined with the visual identification industrial camera of the intelligent preparation equipment, dust, dirt and the like of the industrial camera can be cleaned intermittently, the identification effect of the visual identification device is improved, the maintenance frequency of the equipment is reduced, and the production efficiency of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mineral exploitation equipment technical field, concretely is the vision identification lens cleaning device for mineral separation. BACKGROUND

[0002] The modernized mineral separation equipment has the ore vision intelligent identification mineral separation screening function after intelligent reconstruction, needs to use industrial video camera and other equipment in the process of selecting and identifying the ore to obtain the position information of each ore and carries out identification, marking and tracking.

[0003] The industrial video camera is usually installed above the transmission channel and visually identifies the ore passing below. In the high-speed operation of the transmission channel, the impurities such as stone powder dust inevitably fly and adhere to the front of the camera lens, causing the lens to be dirty, and then affecting the effect of the lens identifying the ore, and finally causing the function of the vision intelligent mineral separation system to be affected. SUMMARY

[0004] The utility model discloses a kind of vision identification lens cleaning devices for mineral separation, and it is combined with the vision identification industrial camera installation of intelligent mineral separation equipment, can realize the intermittent cleaning of dust and dirt of industrial camera, improve the identification effect of vision identification device, reduce the maintenance frequency of equipment, improve equipment production efficiency.

[0005] To achieve the above object, the technical scheme of the utility model is as follows:

[0006] A kind of vision identification lens cleaning device for mineral separation, industrial camera is installed above conveying belt by support frame, glass sheet is set below industrial camera, and the lower end surface of glass sheet is cleaned by reciprocating rubber scraper and / or jet nozzle.

[0007] Glass sheet is high-transparency non-reflective glass sheet, which does not affect the imaging effect of the industrial camera; the rubber scraper and / or jet nozzle can be installed alternatively or simultaneously, when the lower surface of the glass sheet has been working for a period of time, the rubber scraper and / or jet nozzle will reciprocate regularly to remove the dirt attached to the lower surface of the glass sheet; when the rubber scraper and the jet nozzle are installed simultaneously, the cleaning effect is better, the jet nozzle connected to the high-pressure gas source through the pipeline is arranged before the rubber scraper, the glass sheet is first blown away by the jet nozzle, most of the dirt is blown away, and then the remaining dirt is removed by the rubber plate, which can reduce the load of the rubber plate, prevent the dirt from accumulating on the rubber plate, and affect the cleaning effect. The jet nozzle can be a single-point nozzle or a multi-nozzle nozzle arranged side by side, connected to the high-pressure gas supply pipeline through a solenoid valve; a speed regulating valve can also be installed on the air blowing nozzle to adjust the size of the air jet.

[0008] The rubber scraper and / or nozzle are mounted on a slider and connected to a stepper motor via a lead screw and guide rail. A stepper motor, also known as a pulse motor, is an electric motor that converts electrical pulse signals into corresponding angular or linear displacement. For each input pulse signal, the rotor rotates by an angle or moves forward one step. The output angular or linear displacement is proportional to the number of input pulses, and the rotational speed is proportional to the pulse frequency. The stepper motor can accurately position the travel distance of the rubber scraper and / or nozzle, preventing positional deviations.

[0009] Position sensors are installed at both ends of the lead screw slide rail. A sensing plate is installed on the slider, which is connected to a rubber scraper and / or an air nozzle, and can slide freely on the slide rail. The rotation of the lead screw provides the power for the slider to move forward or backward. When the end position sensor detects the slider, a signal is sent to the industrial control computer, which controls the stepper motor to reverse. When the initial end position sensor detects the slider, the microcontroller controls the stepper motor to stop.

[0010] The rubber scraper and / or jet nozzle are connected to the piston rod of the cylinder. A three-axis cylinder can serve as an alternative to a stepper motor, using the forward and backward movement of the cylinder piston rod as the power source for the rubber scraper and / or jet nozzle. The advantages of a cylinder are that it can utilize the workshop's own high-pressure air as a power source; it is equipped with a speed control valve to adjust the speed of piston movement; and it has a cylinder sensor to measure and provide feedback on the piston rod's position.

[0011] Several adjusting screws are fixed to the crossbeam of the support frame. Movable plates are threaded through the adjusting screws and positioned with nuts. The movable plates are fixedly connected to the industrial camera. The movable plates, located on the screws, move by adjusting the positions of the upper and lower nuts to adapt to the focal length requirements of the industrial camera.

[0012] The industrial camera is externally mounted with a camera housing. The camera housing protects the industrial camera from damage and interference from the external environment. The camera housing is fixedly connected to the crossbeam.

[0013] High-brightness, frequency-free flash sources are installed on both sides below the industrial camera to provide supplemental lighting for the ore passing below.

[0014] Advantages of utility models

[0015] 1. This utility model uses a rubber scraper and an air nozzle to intermittently clean the glass plate, ensuring the smooth operation of the visual recognition mineral processing device, improving the recognition effect of the visual recognition device, reducing the maintenance frequency of the equipment, and increasing the production efficiency of the equipment.

[0016] 2. This utility model has a compact and simple structure, is easy to operate, and all actions can be automatically controlled by a microcontroller or other processor device without manual intervention, making maintenance convenient. Attached Figure Description

[0017] Figure 1 Figure 1 is a schematic view of the main structure of the conveying belt and visual recognition system (Example 1).

[0018] Figure 2 Figure 2 is a schematic view of the main structure of the conveying belt and visual recognition system (Example 2). Figure 1 Figure 3 is an enlarged view of the structure at position I in Figure 2 (Example 1).

[0019] Figure 3 Figure 4 is a schematic view of the internal structure of the lens cleaning device (Example 1).

[0020] Figure 4 Figure 5 is a schematic view of the side structure of the lens cleaning device (Example 1).

[0021] Figure 5 Figure 6 is a schematic view of the bottom structure of the lens cleaning device (Example 1).

[0022] Figure 6 Figure 7 is a schematic view of the internal structure of the lens cleaning device (Example 2).

[0023] Figure 7 Figure 8 is a schematic view of the side structure of the lens cleaning device (Example 2).

[0024] Figure 8 Figure 9 is a schematic view of the bottom structure of the lens cleaning device (Example 2).

[0025] The serial numbers and component names in the figures are as follows: 1 - conveying belt; 2 - support frame; 3 - light source; 41 - camera housing; 42 - cross beam; 43 - adjusting screw; 44 - industrial camera; 45 - glass sheet; 51 - rubber scraper; 52 - air jet nozzle; 53 - position sensor; 54 - stepper motor; 55 - screw slide rail; 56 - air cylinder; 57 - sliding block. DETAILED DESCRIPTION Example 1

[0026] A visual recognition lens cleaning device for mineral processing, an industrial camera 44 is installed above a conveying belt 1 through a support frame 2, a glass sheet 45 is arranged below the industrial camera 44, and the lower end surface of the glass sheet 45 is cleaned by a reciprocating rubber scraper 51 and an air jet nozzle 52.

[0027] The rubber scraper 51 and the air jet nozzle 52 are installed on a sliding block 57 and connected to a stepper motor 54 through a screw slide rail 55 and a screw rod.

[0028] Position sensors 53 are arranged at both ends of the screw slide rail 55.

[0029] Adjusting screws 43 are fixed on a cross beam 42 on the support frame 2, an activity plate is connected to the adjusting screws 43 through a screw nut, and the activity plate is fixedly connected to the industrial camera 44.

[0030] A camera housing 41 is installed outside the industrial camera 44. Embodiment 2

[0031] A kind of visual recognition lens cleaning device for mineral processing, industrial camera 44 is installed above conveying belt 1 by support frame 2, glass sheet 45 is arranged below industrial camera 44, the lower end surface of glass sheet 45 is cleaned by reciprocating rubber scraper 51 and air jet nozzle 52.

[0032] The rubber scraper 51 and air jet nozzle 52 are connected to the piston rod of the air cylinder 56.

[0033] The adjusting lead screw 43 is fixed on the crossbeam 42 on the support frame 2, the adjusting lead screw 43 is connected with the movable plate by threading, and the movable plate is fixedly connected with the industrial camera 44.

[0034] The camera housing 41 is installed outside the industrial camera 44.

Claims

1. A visual identification lens cleaning device for mineral processing, characterized by: Industrial camera (44) is installed above conveying belt (1) through support frame (2), glass sheet (45) is arranged below industrial camera (44), and the lower end surface of glass sheet (45) is cleaned through reciprocating rubber scraper (51) and / or air jet nozzle (52); The rubber scraper (51) and / or air jet nozzle (52) are connected to the piston rod of the air cylinder (56); Or the rubber scraper (51) and / or air jet nozzle (52) are installed on the sliding block (57) and connected to the stepping motor (54) through the screw rod sliding rail (55) and the screw rod; The position sensor (53) is arranged at both ends of the screw rod sliding rail (55) respectively; The adjusting screw rod (43) is fixed on the cross beam (42) on the support frame (2), the adjusting screw rod (43) is connected to the movable plate through the screw rod, and the movable plate is positioned by the nut, and the movable plate is fixedly connected with the industrial camera (44); The camera housing (41) is installed outside the industrial camera (44); High-brightness and non-flickering light sources are arranged on both sides below the industrial camera to supplement the light irradiation of the passing ore below; The air jet nozzle (52) connected to the high-pressure gas source through the pipeline is arranged before the rubber scraper (51); The speed regulating valve is installed on the air jet nozzle (52); The speed regulating valve is installed on the air cylinder (56), and the air cylinder sensor is arranged on the air cylinder (56).

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