手臂可调式捆包打结器(外文翻译).doc

手臂可调式捆包打结器(外文翻译)

Bale twine knotter with adjustable wiper
Background of the invention
This invention relates to twine knotters for hay or straw baling machines and more particularly to an improved wiper arm for such knotters.
In one conventional baler, the twine knotter includes a rotatably mounted billhook for forming a loop of twine thereabout. On one side of the billhook is a wiper arm which has a pair of finers defining a fork for receiving and guiding twine used to tie a bale. On one side of the billhook is a knife riveted to the fork for cutting the twine after a loop in the twine has been formed around the billhook. A wiper is formed integrally with the fork of the arm and strips or wipers the loop of twine form around the billhook as the severed end of the twine is held in the billhook jaw.
Proper adjustment of the wiper arm relative to the billhook is critical to the operation of the nkotter as the wiper must strip or wipe the twine loop from the billhook to complete the formation of the knot. Wiper arm adjustment is performed initially at the point of manufacture and periodically thereafter when servicing the baler. It is accomplished by modeling or bending the arm in three areas with a special tool. By modeling, the wiper is centered with respect to the heel of the billhook and adjusted so theat it just clears the billhook jaw. For this reason, it is desirable that the wiper arm be relatively rigid and unyielding so that proper adjustment can be maintained and yet be sufficiently bendable to permit initial adjustmen. Also, in recent years , stronger twines are being used on such balers to tie bales of higher density. Such changes subject the wiper arm to higher forces during operation thus making it more difficult to maintain the arm in proper adjustmen, while at the same time, making the arm flexible enough to permit initial adjustment.
Accordingly, it is an object of this invention to provide a knotter with an improved wiper arm having a strong and rigid construction to maintain an accurate adjustmen.
Another object of this invention is to provide a knotter with a wiper arm which has a wiper which is easily and accurately adjustable with respect to the billhook of the knotter.
发明背景

　这项捆绳打结器的发明和割草机有关，更特别的是为打结机器改良了手臂装置。
传统的打包机、捆绳打结器包括一个可旋转地已安装好的钩镰，用来形成一个缠绕线圈。钩镰的一边是一个手柄臂，这个手柄臂有一对灵敏的叉子用来接放绳子捆包。在钩镰的另一边是一个和叉子固定在一起的执长刀，用来剪断捆绑后在钩镰里面的线圈。一个手臂完整的形成是叉子臂和手臂线圈在钩镰外形成缠绕，最终放置在钩镰钳口里。
适当调整和钩镰相关的手柄臂来实现打包，手柄臂必须从钩镰里退掉打包线圈来完成一个打包循环。手柄臂的调节主要表现在最初的加工制造和打包后周期性的定时维修。它的完成是通过建模或者用一种特殊的工具进行三个区域的手臂弯曲。通过建模，手柄臂被置于钩镰的跟部的中心，调整后就会出现清晰的钩镰钳口。正式因为这个原因，手柄臂被定为相对严格不能弯曲为了可以适当的调整并且保持，然而适当的弯曲在可调节范围内是允许的。在近几年来，更粗的打包绳子应用于这种打包机来捆绑高强度的大包。这种改变以手柄臂在运行过程中提供更高的强度为条件的，因此适当调节来保持手柄臂就变得更难了，然而，使手柄臂的挠性更高就可以完成主要的调节。