手臂可調(diào)式捆包打結(jié)器(外文翻譯)

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.
發(fā)明背景

　這項捆繩打結(jié)器的發(fā)明和割草機有關(guān)，更特別的是為打結(jié)機器改良了手臂裝置。
傳統(tǒng)的打包機、捆繩打結(jié)器包括一個可旋轉(zhuǎn)地已安裝好的鉤鐮，用來形成一個纏繞線圈。鉤鐮的一邊是一個手柄臂，這個手柄臂有一對靈敏的叉子用來接放繩子捆包。在鉤鐮的另一邊是一個和叉子固定在一起的執(zhí)長刀，用來剪斷捆綁后在鉤鐮里面的線圈。一個手臂完整的形成是叉子臂和手臂線圈在鉤鐮外形成纏繞，最終放置在鉤鐮鉗口里。
適當(dāng)調(diào)整和鉤鐮相關(guān)的手柄臂來實現(xiàn)打包，手柄臂必須從鉤鐮里退掉打包線圈來完成一個打包循環(huán)。手柄臂的調(diào)節(jié)主要表現(xiàn)在最初的加工制造和打包后周期性的定時維修。它的完成是通過建?；蛘哂靡环N特殊的工具進行三個區(qū)域的手臂彎曲。通過建模，手柄臂被置于鉤鐮的跟部的中心，調(diào)整后就會出現(xiàn)清晰的鉤鐮鉗口。正式因為這個原因，手柄臂被定為相對嚴(yán)格不能彎曲為了可以適當(dāng)?shù)恼{(diào)整并且保持，然而適當(dāng)?shù)膹澢诳烧{(diào)節(jié)范圍內(nèi)是允許的。在近幾年來，更粗的打包繩子應(yīng)用于這種打包機來捆綁高強度的大包。這種改變以手柄臂在運行過程中提供更高的強度為條件的，因此適當(dāng)調(diào)節(jié)來保持手柄臂就變得更難了，然而，使手柄臂的撓性更高就可以完成主要的調(diào)節(jié)。