[0031] In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0032] Such as figure 1 As shown, this embodiment provides a modified plastic production line based on mechanical vision detection, including: a feeding barrel 8 for holding uniformly stirred plastic raw materials, color masterbatch, toner, and additives; the feeding barrel 8 A single-screw feeding device 10 is connected to the single-screw feeding device 10, and the single-screw feeding device 10 is connected to the glass fiber 9, so that the glass fiber 9 and the uniformly stirred plastic raw material, color masterbatch, toner and additives are fed together; A twin-screw feeding extruder 11 for extruding linear plastic under the barrel 8; connected to the twin-screw feeding extruder 11 for adjusting the temperature, rotation speed and feed of the twin-screw feeding extruder 11 The extruder control box 12 of the same amount; the extruder control box 12 is connected to the monitoring room 13, and the extruder control box 12 is operated in the monitoring room 13; set in the twin-screw extruder The rear end of the machine 11 is used for conveying the linear plastic conveying table 7; above the conveying table 7 is provided with a water temperature tank 6, the linear plastic extruded by the twin screw feeding extruder 11 in the plastic Under the traction of the plate cutter 5, after passing through the water temperature tank 6 on the conveying table 7, the temperature of the linear plastic is lowered to the allowable temperature; it is set at the rear end of the conveying table 7 for alignment of the linear plastic Plastic plate cutter 5 for cutting plastic; a vibration table 4 arranged at the rear end of the plastic plate cutter 5 to vibrate the plastic pellets cut by the plastic plate cutter 5; the vibration table 4 is equipped with a detection camera 3, through which the detection camera 3 captures the color, size and size of the plastic pellets to feedback whether there is a fault in the whole process, and feed it back to the monitoring room 13; set at the rear end of the vibration table 4 for A spiral feeding device 2 for spirally feeding the cut plastic pellets; and a storage tank 1 connected to the spiral feeding device 2 for storing the cut plastic pellets.
[0033] Such as figure 2 As shown, the detection method of a modified plastic production line based on machine vision detection provided by this embodiment includes the following steps:
[0034] Step 1: Clean the screw of the twin-screw plastic extruder. After the screw is cleaned, put it into the twin-screw plastic extruder. Wash the machine with PP waste. The twin-screw plastic extruder is heated and preheated and adjusted by the extruder control box. The temperature, speed and feed rate of the twin screw feeding extruder;
[0035] Step 2: After the preheating is completed, put the evenly stirred plastic raw materials, color masterbatch, toner and additives into the feeding bucket, and at the same time, connect the required number of glass fiber to the single screw feeding device, single screw feeding device Connect the glass fiber, so that the glass fiber and the uniformly stirred plastic raw materials, color masterbatch, toner and additives are fed together;
[0036] Step 3: The linear plastic extruded by the twin-screw plastic extruder is hauled by the plastic flat cutting machine, and the temperature of the linear plastic is reduced to the allowable temperature through the conveying table and the water temperature tank;
[0037] Step 4: After the linear plastic passes through the plastic plate cutter, cut the linear extruded plastic into uniform size plastic pellets by the cutter of the plastic plate cutter;
[0038] Step 5: The plastic pellets pass through the vibrating table. The vibrating table vibrates at a certain frequency and sends the plastic pellets to the spiral feeding device, thereby sending them into the storage tank. A detection camera is installed on the vibrating table, and the plastic cutting is captured by the detection camera. The color, size and size of the pellets are used to determine whether there is a fault in the entire process and feed it back to the monitoring room;
[0039] Step 6: Take the plastic pellets from the storage tank for a spline test.
[0040] In this embodiment, for plastic production, the color and shape of the plastic pellets (the plumpness of the plastic pellets) is one of the important indicators for predicting the characteristics of plastic products. The plastic pellets are melted and a test sample is made through an injection mold. The test strips are tested, and the test content includes: melt index, density, yield strength, tensile strength, flame retardancy, impact toughness, elongation, each type of plastic must be tested after it is made Performance test, but in the production process, if the plastic pellets captured by the machine vision are not normal, the material should be taken in time, and the abnormal plastic pellets taken should be tested in time to test the performance of the test sample, so as to deal with the test results The production of plastic masterbatch (plastic pellets), therefore, the entire plastic inspection method requires a timely, feasible and accurate process plan,
[0041] In this embodiment, the key content of the detection method of this embodiment is to detect the color and shape of the plastic pellets by machine vision. If the color of the plastic pellets is abnormal, the possible reasons are: 1. The modified plastic raw materials put in the feeding bucket are wrong or the feeding bucket is wrong. The internal raw materials are used up; 2. The melting temperature of the twin-screw plastic extruder fluctuates or the head of the twin-screw plastic extruder is blocked; 3. The temperature of the water temperature groove of the conveyor table deviates too much from the set value, if the shape of the plastic pellets is flat Or the reason for the too large hollow core may be: 1. The number of glass fiber roots is wrong (the number of glass fiber roots is less than the set value, and the plastic pellets are mostly flat and not full); 2. Plastic flat cutting machine Blockage or dullness of the cutter. For the abnormal state of plastic cutting detected by the machine vision, the alarm light will be activated. After the inspector hears the alarm, according to the image fed back by the machine vision, the source of the error will be corresponding and rescued in time.
[0042] To sum up, in this embodiment, according to the modified plastic production line and detection method based on machine vision detection of this embodiment, the modified plastic production line and detection method based on machine vision detection provided in this embodiment are used Machine vision detects the plastic pellets in the plastic production process. According to the color and shape of the plastic pellets, the alarm and error cause feedback are provided, which realizes the intelligent monitoring of the plastic production line and reduces the burden on the inspectors. The equipment has good practicability and cost low.
[0043] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited to this. Anyone familiar with the technical field within the scope disclosed by the present invention, according to the technical solution of the present invention and its The equivalent replacement or change of the conception all belong to the protection scope of the present invention.
