Screening mechanism based on visual transmission

Abstract

The utility model discloses a screening mechanism based on visual transmission, which comprises a rack, a glass turntable arranged in the middle of the rack, a driving motor connected to the glass turntable, an industrial camera arranged above the glass turntable, a PLC (Programmable Logic Controller) control system connected to the industrial camera through a circuit, and a feeding mechanism comprising a vibration disc and a feeding conveying guide groove, the output end of the feeding conveying guide groove corresponds to the glass rotating disc. Comprising a re-inspection blower gun and a re-inspection mechanism provided with a re-inspection groove below the re-inspection blower gun, and the re-inspection groove is connected to the input end of a vibration disc through a pipeline; comprising a discharging mechanism composed of a qualified product discharging blower gun, a defective product discharging blower gun, a qualified product groove arranged below the qualified product discharging blower gun and a defective product groove arranged below the defective product discharging blower gun. And by introducing the rechecking mechanism, a PLC control program can detect the visual screening condition of the materials in time, feedback is provided, and then the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a screening mechanism based on visual transmission. Background Art

[0002] After production, material products need to undergo defect detection and screening. After screening without obvious defects, they can enter the next process. Manual screening is labor-intensive, inefficient, and the detection method is too subjective, which can easily affect product quality. For this reason, screening mechanisms based on visual transmission have emerged.

[0003] The utility model patent with announcement number CN220160567U discloses a visual inspection and screening equipment. The technical key point is that it adopts a glass plate visual screening structure mainly composed of a vibration screening feeding mechanism, a turntable conveying and detection mechanism, and a blowing and unloading mechanism. The upper and lower surfaces of the product are inspected for defects through the upper visual inspection mechanism and the lower visual inspection mechanism. The utility model has high efficiency, but lacks a re-inspection mechanism. When the material is too complex and the camera cannot fully identify it, the material needs to be re-inspected, and there is a lack of corresponding measures to solve this problem. Utility Model Content

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology, provide a visual transmission screening mechanism with better screening effect, and solve the problem that the existing technology lacks a re-inspection mechanism.

[0005] In order to achieve the above technical objectives, the technical solutions provided by this utility model are as follows:

[0006] A screening mechanism based on visual transmission includes a frame, a glass turntable is arranged in the middle of the frame, the glass turntable is connected to a drive motor, an industrial camera is arranged above the glass turntable, the industrial camera is connected to a PLC control system through a circuit, and is further provided with:

[0007] The feeding mechanism includes a vibration plate and a feeding conveying guide groove, and the output end of the feeding conveying guide groove corresponds to the glass turntable.

[0008] The re-inspection mechanism includes a re-inspection air gun, a re-inspection slot is provided below the direction facing the re-inspection air gun, and the re-inspection slot is connected to the input end of the vibration disk through a pipeline.

[0009] The blanking mechanism includes an air gun for blanking qualified products and an air gun for blanking defective products. A qualified product slot is provided below the direction of the air gun for blanking qualified products, and a defective product slot is provided below the direction of the air gun for blanking defective products.

[0010] In order to improve the degree of automation of the screening mechanism, the technical solution provided by the present invention includes: the PLC control system is connected to the glass turntable, the vibration plate, the industrial camera through the circuit, and the re-inspection air gun, the qualified product discharge air gun and the defective product discharge air gun are respectively connected to the drive motor.

[0011] In order to prevent the material in the loading and conveying guide groove from being deflected due to the radial velocity component when being transferred to the glass turntable, the technical solution provided by the present invention includes: the output end of the loading and conveying guide groove is arranged tangent to the glass turntable.

[0012] A further embodiment also includes: setting the linear speed of the glass turntable to be the same as the linear speed of the material at the end of the feeding conveying guide groove through the PLC control system.

[0013] In order to prevent materials of different qualities from moving into collection troughs of other qualities due to the action of the air gun, the technical solution provided by the utility model includes: a baffle is set between the re-inspection trough, the qualified product trough and the defective product trough.

[0014] To facilitate the collection of products, the technical solution provided by the present invention also includes: a material receiving port and a material receiving gate are arranged on the outside of the frame, the material receiving port is adapted to the material receiving gate, the driving motor of the material receiving gate is connected to the PLC control system through the circuit, and the opening and closing of the material receiving gate connects or isolates the material receiving port from the middle trough, and the middle trough includes a re-inspection trough, a qualified product trough, and a defective product trough.

[0015] A further embodiment also includes: an inclined surface is provided in the middle groove, and the inclined surface is inclined toward the material receiving port.

[0016] In order to achieve the adjustment of the air gun and adapt to parts of different qualities and shapes, and to achieve the technical effect of screening, the technical solution provided by the utility model includes: the air gun includes a re-inspection air gun, a qualified product blanking air gun and a defective product blanking air gun, and the air gun is connected to the frame through a rotating shaft.

[0017] A further implementation plan also includes that among the three types of air guns, namely the re-inspection air gun, the qualified product blanking air gun and the defective product blanking air gun, at least one type includes two angle-adjustable air gun muzzles. When the blowing angles of the two air gun muzzles are staggered, greater wind force can be provided for a part.

[0018] The advantages and beneficial effects of the utility model are:

[0019] 1. By adding a re-inspection organization, more complex and temporarily indistinguishable materials can be temporarily stored, returned, and re-screened.

[0020] 2. The coordination of each component of the screening mechanism is precisely controlled through the PLC control system.

[0021] 3. An intermediate trough, a receiving gate and a receiving port are provided to temporarily store the materials. The driving motor of the receiving gate is also connected to the PLC control system to facilitate material collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0023] Figure 2 This is an enlarged view of the air gun of the embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the re-inspection tank of the utility model;

[0025] Reference numerals:

[0026] 10-frame, 11-glass turntable, 12-industrial camera, 20-feeding conveyor guide trough, 30-re-inspection air gun, 31-re-inspection trough, 40-qualified product unloading air gun, 41-qualified product trough, 42-defective product unloading air gun, 43-defective product trough, 50-baffle, 60 receiving port, 61-receiving gate, 62-inclined surface, 71-rotating shaft, 72-air gun muzzle. DETAILED DESCRIPTION

[0027] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] Example

[0029] See also Figures 1 to 3 A screening mechanism based on visual transmission includes a frame 10, a glass turntable 11 is arranged in the center of the frame 10, the glass turntable 11 is connected to a drive motor, an industrial camera 12 is arranged above the glass turntable 11, and the industrial camera 12 is connected to a PLC control system through a circuit. The following are also provided:

[0030] The feeding mechanism includes a vibration plate and a feeding conveying guide groove 20 , and the output end of the feeding conveying guide groove 20 corresponds to the glass turntable.

[0031] The re-inspection mechanism includes a re-inspection air gun 30. A re-inspection slot 31 is provided below the direction facing the re-inspection air gun 30. The re-inspection slot 31 is connected to the input end of the vibration plate through a pipeline.

[0032] The blanking mechanism includes a qualified product blanking air gun 40 and a defective product blanking air gun 42. A qualified product slot 41 is provided below the qualified product blanking air gun 40, and a defective product slot 43 is provided below the defective product blanking air gun 42.

[0033] The PLC control system is connected via circuits to the glass turntable 11, the vibrating plate, the industrial camera 12, and the drive motors connected to the re-inspection air gun 30, the qualified product discharge air gun 40, and the defective product discharge air gun 42. The output end of the loading and conveying guide 20 is arranged tangentially to the glass turntable 11. The PLC control system sets the linear speed of the glass turntable 11 to be the same as the linear speed of the material at the end of the loading and conveying guide 20. After the loading and conveying guide 11 transports the material to the glass turntable 11, the material rotates counterclockwise with the glass turntable 11. The industrial camera 12 captures the material one by one and feeds back the image features to the PLC control system. The PLC control system uses a program to determine whether the material is qualified or requires re-inspection. If re-inspection is determined to be necessary, when the material to be re-inspected rotates with the glass turntable 11 to the position of the re-inspection air gun 30, the re-inspection air gun 30 blows air into the re-inspection trough 31 for temporary storage. When the PLC control system determines that the material is qualified, it moves to the qualified product discharge air gun 40, which blows it into the qualified product trough 41. Defective materials are not described in detail. Baffles 50 are installed between the re-inspection trough 31, the qualified product trough 41, and the defective product trough 43 to isolate materials of different qualities. It should be noted that the re-inspection trough 31 is connected to the input end of the vibrating plate via a pipe, allowing re-inspection work to be performed as needed based on the actual conditions of the re-inspection trough 31 and the vibrating plate.

[0034] A material receiving port 60 and a material receiving gate 61 are provided on the outside of the frame 10. The material receiving port 60 is adapted to accommodate the material receiving gate 61. The drive motor of the material receiving gate 61 is connected to the PLC control system via an electrical circuit. The opening and closing of the material receiving gate 61 connects or isolates the material receiving port 60 from the intermediate trough, which includes the re-inspection trough 31, the qualified product trough 41, and the defective product trough 43. A slope 62 is provided within the intermediate trough, which is inclined toward the material receiving port 60. When the operator needs to remove different materials temporarily stored, they only need to operate the PLC control system to open the material receiving gate 61. A container is connected below the material receiving port 60 for quick collection.

[0035] The air guns include a re-inspection air gun 30, a qualified product discharge air gun 40, and a defective product discharge air gun 42. Each of these air guns is rotatably connected to the frame 10 via a rotating shaft 71. Each of these three types of air guns includes two adjustable air gun nozzles 72. The rotating shaft 71 allows the air blowing angle to be adjusted within a certain range. When the blowing angles of the two air gun nozzles 72 are staggered, they can provide greater air force to a single part, thereby meeting the screening requirements for materials of varying quality.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A screening mechanism based on visual transmission, comprising a frame, a glass turntable disposed in the middle of the frame, the glass turntable being connected to a drive motor, an industrial camera disposed above the glass turntable, the industrial camera being connected to a PLC control system via an electrical circuit, and characterized by: Also provided are: A feeding mechanism, comprising a vibrating plate and a feeding conveying guide groove, wherein the output end of the feeding conveying guide groove corresponds to the glass turntable; A re-inspection mechanism, comprising a re-inspection air gun, a re-inspection slot being provided below the direction of the re-inspection air gun, and the re-inspection slot being connected to the input end of the vibration plate through a pipeline; The blanking mechanism includes an air gun for blanking qualified products and an air gun for blanking defective products. A qualified product slot is provided below the direction of the air gun for blanking qualified products, and a defective product slot is provided below the direction of the air gun for blanking defective products.

2. The screening mechanism based on visual transmission according to claim 1, characterized in that: The PLC control system is connected to the glass turntable, the vibration plate, the industrial camera, the re-inspection air gun, the qualified product discharge air gun and the defective product discharge air gun through circuits to drive motors connected thereto.

3. The screening mechanism based on visual transmission according to claim 1, characterized in that: The output end of the loading and conveying guide groove is arranged tangent to the glass turntable.

4. The screening mechanism based on visual transmission according to claim 1, characterized in that: A baffle is provided between the re-inspection slot, the qualified product slot and the defective product slot.

5. The screening mechanism based on visual transmission according to claim 1, characterized in that: A material receiving port and a material receiving gate are provided on the outside of the frame. The material receiving port is adapted to the material receiving gate. The driving motor of the material receiving gate is connected to the PLC control system through the circuit. The opening and closing of the material receiving gate connects or isolates the material receiving port with the middle slot. The middle slot includes a re-inspection slot, a qualified product slot, and a defective product slot.

6. The screening mechanism based on visual transmission according to claim 5, characterized in that: An inclined surface is provided in the middle groove, and the inclined surface is inclined toward the material receiving port.

7. The screening mechanism based on visual transmission according to claim 1, characterized in that: The air guns include the re-inspection air gun, the qualified product blanking air gun and the defective product blanking air gun, and the air guns are rotatably connected to the frame through a rotating shaft.

8. The screening mechanism based on visual transmission according to claim 7, characterized in that: Among the three types of air guns, namely, the re-inspection air gun, the qualified product blanking air gun and the defective product blanking air gun, at least one type includes two angle-adjustable air gun muzzles.

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