Synchronous width modulation guide rail system of crest welder

Abstract

The invention discloses a synchronous width modulation guide rail system of a crest welder. Fixed guide rails are hung on guide shafts through guide sleeves and are jacked tightly and fixed through jack screws so that the fixed guide rails are prevented from moving, the guide shafts are fixed on a support, movable guide rails are hung on the guide shafts through guide sleeves, and width modulation nuts are welded on the movable guide rails and form threaded fit with width modulation thread shafts. When the thread shafts rotate, the movable guide rails are hung on two guide shafts and cannot rotate, the movable guide rails slide along the guide shafts to achieve width modulation, the three width modulation thread shafts are connected together through gears with the same size and chains, when one width modulation thread shaft rotates, the other two width modulation thread shafts accordingly rotate to achieve synchronous transmission, the two guide shafts have the functions of hanging and guiding the guide rails to move, hand wheels and the three width modulation thread shafts have the functions of driving the movable guide rails to move, bearings bear the width modulation thread shafts and limit axial movement of the width modulation thread shafts, and the transmission gears and the transmission chains are connected with the three width modulation thread shafts to achieve the synchronous transmission.

Description

technical field [0001] The invention belongs to the application field of selective wave soldering machines, and more specifically provides a synchronous width-adjusting guide rail system for wave soldering machines. Background technique [0002] When the PCB board enters the wave soldering machine, the force exerted by the chain claws on both sides should be consistent throughout the entire tin furnace. Otherwise, there will be phenomena of clamping the product (loose before tightening) and dropping the substrate (tightening before loosening), resulting in product scrapping, and in severe cases, safety accidents and equipment accidents will occur. As the use time of the wave soldering machine increases, it is inevitable that dirt will be deposited on the transmission system, resulting in an increase in transmission resistance. If the resistance of each part is uneven, and the adjustment is forced to be adjusted, it will cause the thread to slip and loosen, resulting in the ...

AI Technical Summary

Problems solved by technology

Otherwise, there will be phenomena of pinching the product (loose before tightening) and dropping the substrate (tightening before loosening), resulting in product scrapping, and in severe cases, safety accidents and equipment accidents will occur

As the use time of the wave soldering machine increases, it is inevitable that dirt will be deposited on the transmission system, resulting in an increase in transmission resistance

If the resistance of each part is uneven, if the adjustment is forced to be adjusted, it will cause the thread to slip and loosen, resulting in the destruction of the synchronous transmission action, thus changing the parallelism between the guide rails

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