Needle missing detection device for disposable blood taking needle

Abstract

The invention provides a needle missing detection device for a disposable blood taking needle. The device comprises blood taking needle blanks and a needle missing detection station, wherein the needle missing detection station consists of a rack, an air pressure cylinder, a detection sliding plate, an upper template and a lower template; the air pressure cylinder is arranged on the top of the rack; the rack consists of upper and lower bedplates and upright posts; four upright posts are fixed at four corners of the upper and lower bedplates; the detection sliding plate, the upper template and the lower template are arranged between the upper and lower bedplates; the four corners are connected with the upright posts in a sliding way; a piston of the air pressure cylinder passes through the upper bedplate and is connected with the top of the detection sliding plate; opposite contact surfaces between the upper and lower templates are provided with grooves of which the external forms are matched with those of the blood taking needle blanks; the blood taking needle blanks are arranged in the grooves; the detection sliding plate is arranged between an upper die and the upper bedplate; a touch switch component is arranged in the detection sliding plate; the bottom of each touch switch in the touch switch component is connected with two probes; and the probes pass through the upper template downwards and are connected with blood taking needle cores in two positioning through holes on the corresponding blood taking needle.

Description

technical field [0001] The invention relates to a detection device, in particular to a detection device for a leaked needle of a disposable blood collection needle. Background technique [0002] In the production process of blood collection needles, because the needle core in the blood collection needle is too small, it is inevitable that there will be a problem of missing or missing needles when the needle is arranged in the mold. In order to ensure the quality of the product, each blood collection needle must be inspected before leaving the factory. , to remove the waste products with missing needles. The inspection of missing needles in the prior art depends entirely on human eye observation. The inspectors must be young and require good eyesight. Even so, better light should be provided. It’s not good for glare, and it’s not good for weak light to see clearly. It must be carried out in a sunny environment in a scattered light environment, which seriously affects producti...

AI Technical Summary

Problems solved by technology

[0002] In the production process of blood collection needles, because the needle core in the blood collection needle is too small, it is inevitable that there will be a problem of missing or missing needles when the needle is arranged in the mold. In order to ensure the quality of the product, each blood collection needle must be inspected before leaving the factory. , to remove the waste products with missing needles. The inspection of missing needles in the prior art depends entirely on human eye observation. The inspectors must be young and require good eyesight. Even so, better light should be provided. It is not good for glare, and it is not good for weak light to see clearly. It must be carried out in a sunny environment in a scattered light environment, which seriously affects production and increases the labor intensity of workers.

There is currently no good detection method

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