Device for feeding rod with lifting head

Abstract

The invention discloses a device for feeding a rod with a lifting head. The device comprises a hopper, a rotating disc and a driving mechanism, wherein a rotating shaft for connecting the rotating disc and the driving mechanism is arranged on the mounting plate of the hopper; the mounting plate is provided with an annular sealing ring on the inner side of the hopper; an arc-shaped groove is formedin the bottom of the annular sealing ring; gas sucking holes are formed in the arc-shaped groove and the mounting plate in a communicating manner; a confirmation gas sucking hole is formed in the topof the annular sealing ring; material sucking holes communicated with the gas sucking holes and the confirmation gas sucking hole in a one to one correspondence manner are formed in the rotating disc. The device is characterized in that a shifting groove is formed in the rotating disc; the material sucking holes are stepped holes; the gas sucking holes and the confirmation gas sucking hole are connected with a gas source pipeline; the driving mechanism is a geneva wheel driving mechanism of which the center distance can be adjusted; the gas source pipeline and the driving mechanism are electrically connected with a control unit; a shifting mechanism is arranged inside the hopper. The device has the advantages that a plurality types of rods with lifting heads can be fed into the material sucking holes with a high probability at correct postures, are retained in the material sucking holes, and are further accurately positioned and conveyed to a discharge position.

Description

technical field [0001] The invention belongs to the technical field of material conveying, and in particular relates to a method of sucking and holding the rods with hanging heads such as screws and rivets in the suction holes provided on the turntable, and transporting the bars with hanging heads to the predetermined take-out through the rotation of the turntable. The position is used for the feeding device of the take-out mechanism to take the nails. Background technique [0002] In the electronics industry, the assembly of screws has developed from the traditional manual tightening to the current automatic screw machine technology, and the work efficiency has been improved by hundreds of times. The automatic screw machine includes a screw arrangement machine, a screw alignment machine, a screw feeder, etc. The main function is to transport the screws to the predetermined removal position. In the prior art, automatic screw machines are generally divided into vibration dis...

AI Technical Summary

Problems solved by technology

[0004] 1. The scope of application is narrow, and miniature bars with hanging heads, especially those with larger hanging heads, are prone to reverse attraction; threaded screws often cannot enter the suction hole with the correct posture, which affects the take-out mechanism to take nails;

[0005] 2. The materials are easy to concentrate and accumulate. Driven by the rotation of the separation plate, the materials are concentrated from the lowest position to the upper area of ​​the rotation direction, resulting in too little material at the lowest position, resulting in a low probability of material suction;

[0006] 3. The mechanical wear of the intermittent rotation drive mechanism is relatively large, and the positioning accuracy is getting lower and lower with the increase of the wear degree, which affects the accurate nail removal of the take-out mechanism; in addition, the positioning of the intermittent rotation drive mechanism is prone to deviation, which affects the take-out mechanism to take nails

[0007] 4. The same air path used by the suction hole for confirmation of the highest position and the suction hole near the lowest position is likely to block the vacuum generator in the air path due to dirt in the material, reduce the detection accuracy of the pressure sensor, and affect the belt head Normal operation of the bar feeding device

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