Visual inspection device for plastic articles

Abstract

The utility model discloses a kind of plastic product visual inspection devices, including visual inspection mechanism, piece feeding mechanism and control system, the visual inspection mechanism is arranged between plastic product forming mechanism and plastic product stacking station, it is characterized by: the visual inspection mechanism includes visual inspection camera, visual inspection camera is above plastic product conveying path, corresponding detection plastic product, and the visual inspection information of plastic product is transmitted to control system, the piece feeding shaft of the piece feeding mechanism is equipped with encoder, and encoder transmits plastic sheet conveying length and speed information to control system, the control system according to plastic product visual inspection information, plastic sheet conveying length and speed information to record the stacking position of defective product.The utility model can detect and record the stacking position of defective product, convenient to pick out defective product, improve work efficiency, reduce defective product to flow into market.

Description

Technical Field

[0001] This utility model relates to an improvement invention in the field of thermoforming of plastic products, and more particularly to an improvement invention of a visual inspection device for plastic products. Background Technology

[0002] Currently available thermoforming machines for plastic products are prone to problems during production, such as oil stains and foreign objects falling onto the products during heating and molding, as well as molding defects. These defects result in defective products that can mix with stacked products, increasing the difficulty of screening, affecting workers' ability to pick out defective products, and increasing the likelihood of defective products entering the market. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a visual inspection device for plastic products.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A visual inspection device for plastic products includes a visual inspection mechanism, a sheet feeding mechanism, and a control system. The visual inspection mechanism is located between the plastic product molding mechanism and the plastic product stacking station. The visual inspection mechanism includes a visual inspection camera located above the plastic product conveying path, which detects the plastic products and transmits the visual inspection information of the plastic products to the control system. The sheet feeding mechanism's feeding shaft is equipped with an encoder, which transmits the plastic sheet conveying length and speed information to the control system. The control system records the stacking position of defective products based on the plastic product visual inspection information, the plastic sheet conveying length, and the speed information.

[0005] The visual inspection camera is mounted on the frame of the plastic product thermoforming machine via a bracket.

[0006] The visual inspection mechanism is equipped with a tunnel light source and a strip light source, which are respectively positioned above and below the plastic product conveying path.

[0007] The beneficial effect of this utility model is that the improved visual inspection device for plastic products, by setting up a visual inspection mechanism and an encoder, acquires visual inspection information of plastic products before stacking and information on the length and speed of plastic sheet conveying. The control system records the stacking position of defective products based on the above information, which makes it convenient for workers to pick out defective products in time, improves work efficiency, and reduces the number of defective products entering the market. Attached Figure Description

[0008] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0009] Figure 1This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a top view of the structure of this utility model.

[0011] Figure 3 This utility model Figure 1 Enlarged view of a specific area. Detailed Implementation

[0012] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-3 The visual inspection device for plastic products includes a visual inspection mechanism 1, a sheet feeding mechanism, and a control system. The visual inspection mechanism 1 is located between the plastic product forming mechanism 2 and the plastic product stacking station 3. The visual inspection mechanism 1 includes a visual inspection camera positioned above the plastic product conveying path, which detects the plastic products and transmits the visual inspection information to the control system. The sheet feeding mechanism's feeding shaft is equipped with an encoder 4, which transmits the plastic sheet conveying length and speed information to the control system. The control system records the stacking position of defective products based on the visual inspection information of the plastic products and the conveying length and speed information of the plastic sheets. The control system is an existing system suitable for mechanical equipment, such as a PLC control system; the sheet feeding mechanism includes a feeding shaft and its power source.

[0013] The working principle of this utility model is as follows: after the plastic product forming mechanism 2 produces plastic products, they enter the stacking station 3 after passing through the vision inspection mechanism 1. During this process, the encoder 4 monitors the conveying length and speed information of the plastic sheet and transmits the signal to the control system. The vision inspection mechanism 1 photographs the plastic product and obtains the corresponding vision inspection information, and transmits the vision inspection information of the plastic product to the control system. The control system analyzes the received information and converts the sheet speed / length information into spatial coordinates to accurately record the specific position of the defective product in the stacking station 3, that is, in which mold and which position. This makes it easier for workers to pick out defective products, improves work efficiency, and reduces the number of defective products entering the market.

[0014] As a further improved embodiment, the visual inspection camera is mounted on the frame of a plastic product thermoforming machine via a bracket.

[0015] As a further improved specific implementation, the visual inspection mechanism 1 is equipped with a tunnel light source 5 and a strip light source 6. The tunnel light source 5 and the strip light source 6 are respectively arranged above and below the plastic product conveying path to illuminate the plastic products passing by and assist the camera in taking pictures.

[0016] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A visual inspection device for plastic products, comprising a visual inspection mechanism, a sheet feeding mechanism, and a control system, wherein the visual inspection mechanism is disposed between a plastic product molding mechanism and a plastic product stacking station, characterized in that: The visual inspection mechanism includes a visual inspection camera located above the plastic product conveying path. The camera detects the plastic products and transmits the visual inspection information of the plastic products to the control system. The feeding shaft of the feeding mechanism is equipped with an encoder, which transmits the conveying length and speed information of the plastic sheet to the control system. The control system records the stacking position of defective products based on the visual inspection information of the plastic products and the conveying length and speed information of the plastic sheet.

2. The visual inspection device for plastic products as described in claim 1, characterized in that: The visual inspection camera is mounted on the frame of the plastic product thermoforming machine via a bracket.

3. The visual inspection device for plastic products as described in claim 1 or 2, characterized in that: The visual inspection mechanism is equipped with a tunnel light source and a strip light source, which are respectively positioned above and below the plastic product conveying path.

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