Counting and detecting device of thread rolling machine

Abstract

The invention discloses a counting and detecting device for a thread rolling machine, which comprises a fixed seat, a touch swinging unit, a proximity detector and a counter connected with the proximity detector electrically. The touch swinging unit is provided with a swinging arm arranged on the fixed seat pivotally, and a touch rod which is arranged at one end of the swinging rod and projected on a transfer path of a workpiece. When the workpiece presses and pushes the touch rod, the touch rod and the swinging arm can swing to a counting position; and when the workpiece moves away from the touch rod, the touch rod and the swinging arm can reset to a normal position automatically. The proximity detector is fixedly arranged on the fixed seat and not contacted with the swinging arm and cansend out a counting signal to the counter when senses that the swinging rod swings to the counting position. The counting and detecting device of the thread rolling machine is used for achieving the advantages of simple overall structure and design, accurate counting and long service life.

Description

【Technical field】 [0001] The invention relates to a counting device of a tooth rolling machine, in particular to a counting and detection device of a tooth rolling machine using the principle of non-contact proximity sensing. 【Background technique】 [0002] Such as figure 1 and figure 2 As shown, an existing thread rolling machine 1 includes a vibrating plate 11 for allowing a plurality of blanks to be output in a row in a standing manner, and a conveyor for guiding the multiple blanks output from the vibrating plate 11 in a row. Groove rail 12, one is arranged on the opening of this conveying groove rail 12 and can carry out the tooth rubbing device 13 of rubbing processing to this a plurality of blanks one by one, and one is arranged on this tooth rubbing device 13 tops and is used for A counting device 14 for online counting and detection of the multiple billets. [0003] The tooth rubbing device 13 has a fixed die 131 and a movable die 132 parallel to the fixed die 1...

AI Technical Summary

Problems solved by technology

[0005] Although the mechanical structure and operation design of the contact sensor 141 are simple, according to the general processing speed of "hundreds of blanks / minute", the micro switch 143 is controlled by the ejector rod. 144 In the case of repeated mechanical touch and fast switching, its structure is relatively easy to damage (such as the contact point), and sparks and noise will be generated at the moment of power-on, and poor contact is prone to occur, thus affecting the counting accuracy , Moreover, the airtightness of the micro switch 143 is also relatively poor, and it is easy to seep oil gas, water vapor or foreign matter, etc., and cause malfunction

Therefore, this type of counting device 14 does generally have problems such as short service life and non-durability in use.

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