Screw sieving machine

Abstract

The invention discloses a screw sorting machine. The screw sorting machine comprises a vibration disk, a guiding groove connected with and arranged at an outlet of the vibration disk, and a qualified product box arranged behind the guiding groove, wherein a sliding groove component is arranged behind the guiding groove, and is provided with a screw length detecting component. All parts are connected and controlled by a main control circuit. The screw sorting machine can sort screws according to the size and length of screws so as to pick out the screw products unqualified in size and length, is precise in detection and low in price which is only one fifth of current market price, and can be used for screening other similar parts or standard parts such as rivets and shafts.

Description

technical field [0001] The invention relates to a screw precision screening device, the purpose of which is to prevent the mixing of foreign products, meet the precise size requirements of high-end customers for screw products, and meet the rapid and uninterrupted operation of the customer's automatic assembly production line. Background technique [0002] At present, almost all screw factories use a simple screening machine, which only screens the diameter of the head. The distance between the gap and the diameter of the screw head is equal to the roller (roller), when the screw is lined up by the vibrating plate, the head will go up and enter the gap of the roller neatly. At this time, if the diameter of the screw head is too large, it will fall at the beginning of the roller. On the contrary, if the head diameter is too small, it will still not fall at the tail of the drum. Only the products to be screened whose head diameter matches the drum gap will fall in the middle, ...

AI Technical Summary

Problems solved by technology

[0003] Leading by Taiwanese manufacturers, in recent years, they have begun to develop image-type screw screening machines (some are called laser-type, photoelectric-type, etc., but the principle is similar). In the disc, the disc drives the measured screw through a detection position with 1-3 lenses during the rotation process, and the lens image is transmitted to the computer. After computer software analysis, the total length of the screw, rod length, head diameter, and screw teeth can be measured. Diameter, head thickness, tooth pitch, concentricity, head crack and many other items are indeed relatively advanced, but its fatal problems are: 1. The price is too high, domestic manufacturing is generally around 300,000 yuan, and Taiwan manufacturing is generally 400,000 yuan. 2. The efficiency is too low, the maximum speed is 400pcs / min, if it is required to screen the front and surrounding cracks of the head, the speed is only about 100pcs / min, calculated according to the same production capacity, the investment in testing equipment is twice that of the main production equipment, Therefore, it is difficult for screw manufacturers to accept and promote it.

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