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1、<p><b> 1</b></p><p> Bale twine knotter with adjustable wiper</p><p> Background of the invention</p><p> This invention relates to twine knotters for hay or s
2、traw baling machines and more particularly to an improved wiper arm for such knotters.</p><p> In one conventional baler, the twine knotter includes a rotatably mounted billhook for forming a loop of twine
3、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
4、 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 fo</p><p> Proper adjustment of the wip
5、er 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 initia
6、lly 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
7、to the heel of the billhook and </p><p> 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 adjustm
8、en.</p><p> 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.</p><
9、p> SUMMARY OF THE INVENTION </p><p> These and other objects of the invention are accomplished by knotter comprising a rotatably mounted billhook for forming a loop of twine thereabout and a wiper arm w
10、ith an improved adjustably mounted wiper for sliding a twine loop form the billhook while the twine end is retained in a jaw of the billhook to complete the formation of a weine knot. In one embodiment, the wiper has slo
11、ts formed teerein and is adjustably mounted on the arm and relative to the billhook by screws inserted through the </p><p><b> 2</b></p><p> Brief description of the drawings</p
12、><p> FIG. 1 is a fragmentary perpective view of a twine knotter in accordance with a preferred embodiment of this invention.</p><p> FIG. 2 is an esploded view of a wiper arm of the kontter show
13、n in FIG.1</p><p> FIG. 3 is a view of the knotter of FIG.1 taken along line 3—3.</p><p> FIG. 4 is a fragmentary perspective view of a knotter wiper arm in accordance with a second embodiment
14、 of this invention.</p><p> FIG. 5--9 are fragmentary perspective views pf a knotter of FIG.1 showing progressive stages of knot tying.</p><p> Description of the preferred embodiments</p&g
15、t;<p> FIGS.1—3 show in fragmentary form a knotter 1 in accordance with the preferrde embodiment of this invention. Knotters of this general type are well knowen in the art and are widely used commercially, such
16、as in the John Deere 466 Series balers sole by John Deere Company, a corporation of Delaware. Such balers are used for the baling of hay or straw into a rectangular parallelpiped shaped bale.</p><p> Knotte
17、r 1 comprises a billhook 13 including (1) a center shaft 3on which billhook 13 is rotatably mounted in a knotter frame 5 and (2) a jaw 14 around which a loop of twine is formed as rotated and for retaining the twine end
18、during knot formation. On one said of billhook 13 a twine disk 15 and a twine holder 16 are provided for holding a segment of twine 19. On the opposite side and below billhook 13, a wiper arm 17 is provided.Wiper arm 17
19、(FIGS.1,2) includes a twine guiding fork 20 preferably</p><p> Wiper 21, preferably of case hardened steel, is platelike and has a pair of slots 33, 35 corresponding in spacing to the threaded apertures 29,
20、31 of boss 25. The profile of wiper 21 is conventional and has an arcuate recess or ledge 37. Wiper 21 is detachably mounted to fork 20 by a pair of screws 39,41 which pass through slots 33,35 and threadably engage apert
21、ues 29,31 so that fork 20 and wiper 21 are held tightly toghter. Wiper 21 is asjustable relative to fork 20 by moving wiper 21 back and f</p><p> Referring now to FIG. 3, wiper 21 is positioned closely to b
22、illhook 13 which ledge or recess 37 centered in relation to an outer surface or heel 43 of jaw 14. The maximum recommended clearance between a first portion 43 of jaw 14 and ledge 37 is 2.4.mm.. at the closest distance w
23、hich jaw portion 45 approaches during rotation of billhook 13 during the formation of a twine knot.</p><p> In contrast to the conventional integral wiper arm described in the Background of the Invention wh
24、ich requires modeling or bending of the wiper arm at positions corresponding to positions A,B and C shown in FIG. 2 in order to adjust the wiper with respect to the billhook for proper stripping of a twine loop from the
25、billhook, the present embodiment of the invention achieves alignment simply and easily by adjustment of wiper 21 by loosening of screws 39,41 and sliding platelike wiper 21 back and </p><p> In accordance w
26、ith the features of a second embodiment of this invention, FIG. 4 shows a vertex 51 of a wiper arm 53 identical to wiper arm 17 except for the portion shown and descrobed in FIG. 4. shows a vertex 51 of a wiper arm 53 id
27、entical to wiper arm 17 except for the portion shown and described in FIG. 4. Wper arm 53 portion shown and described in FIG. 4. Wper arm 53includes a wiper 55 having first and second portions 57, 59 joined together at a
28、 right angle.Wiper 55 is adjustably mounted t</p><p> The functionng of knotter 1 for tying twine around a bale of hay is conventional and will be described herein only briefly. Particular reference is made
29、 to FIG.1 and FIGS.5—9 which show the progressive stages of knot formation.</p><p> FIG.1 shows the condition when a needle 75 (showm in FIG.5) is threaded with twine 10 stored in a twine box (not shown) an
30、d from a prior cycle, one end of twine 19 is held in twine disk 15 by twine holder 16. Twine 19 is threaded through fork 20 between fingers 22,23 and ocer the top of bale 77. As bale 77 is formed and moves against twine
31、19,twine 19 is extended across the outer surface of bale 77 by pulling more twine from the twine box. As shown in FIG.5,when bale 77 reaches a predetermined l</p><p><b> 1</b></p><p&g
32、t; 手臂可調(diào)式捆包打結器</p><p><b> 發(fā)明背景</b></p><p> 這項捆繩打結器的發(fā)明和割草機有關,更特別的是為打結機器改良了手臂裝置。</p><p> 傳統(tǒng)的打包機、捆繩打結器包括一個可旋轉地已安裝好的鉤鐮,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
33、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。</p><p> 適當調(diào)整和鉤鐮相關的手柄臂來實現(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,
34、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格不能彎曲為了可以適當?shù)恼{(diào)整并且保持,然而適當?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)。</p><p> 照此,這項發(fā)明的目標就是提供一種打包機能夠提高手柄臂的
35、強度并且可以保持手柄臂調(diào)節(jié)的精確度。</p><p> 這項發(fā)明的另一個目標是提供一個容易并且精確調(diào)節(jié)的手柄臂給打結機。</p><p><b> 總結的發(fā)明</b></p><p> 這些和其他物體的發(fā)明是由knotter包括安裝執(zhí)長刀(rotatably形成回路及雨刮器臂纏繞在其附近adjustably刮了滑動一個麻繩安裝時形成的執(zhí)長
36、刀(回路中保留最終麻繩下顎執(zhí)長刀(形成一套完整的weine打結。在一個化身,鋁槽,形成具有teerein adjustably安裝到機架和相對的執(zhí)長刀(用螺絲插入通過槽和thereadably安裝的手臂。在第二個表現(xiàn)、刮雨器第一和第二部分有一起參加直角,asjustably安裝相對的手臂和對執(zhí)長刀(由插入的knotter之間的shims第二部分雨刮器、手臂。想的手臂較嚴格的刮不屈以便適當調(diào)整,還能維持足夠bendable允許初始adju
37、stmen。同樣,最近幾年,強大的纏繞正被用于等5個系包密度高。這種變化的手臂,更高的力量在刮操作從而使它更難以保持手臂在適當?shù)腶djustmen,同時,使手臂足夠的靈活性,允許初始的調(diào)整。</p><p><b> 對發(fā)明的總結</b></p><p> 這項發(fā)明是通過打結器包括已放置好的執(zhí)長刀和用來形成打包線圈的鉤鐮來完成的,一個手柄臂有一個改良后可調(diào)節(jié)的手柄
38、,用來滑行在鉤鐮里形成線圈,當線圈末端停留在鉤鐮鉗口里時就完成了一個打包循環(huán)。具體的一點是,手柄跟蹤形成纏繞,已放置的一個手柄臂的調(diào)節(jié)和鉤鐮是相關的通過在槽內(nèi)放置螺絲釘和在手柄里形成纏繞。具體額第二點是,手柄有主次兩部分在一個正確的角度內(nèi)結合在一起,這種調(diào)節(jié)相對于手柄和鉤鐮是通過嵌入和移動兩部分手柄和手臂之間的薄墊片來實現(xiàn)的。</p><p><b> 2</b></p>&
39、lt;p><b> 簡潔的圖形描述</b></p><p> 圖1是一種部分圖和打包機的具體發(fā)明圖是一致的</p><p> 圖2是一個短臂角度的打包機圖片圖1已經(jīng)給出</p><p> 圖3是一個圖1的到3-3線打包機圖。</p><p> 圖4是打包機的部分圖和具體第一點相一致。</p>
40、<p> 圖5 – 9是打包機的部分圖顯示了圖1打結機漸進式階段的打結過程。</p><p><b> 具體表現(xiàn)的描述 </b></p><p> 圖1-3顯示了打包機一部分到完整的具體發(fā)明。普通打包機廣泛應用于建筑和商業(yè)領域,如在約翰·迪雷466系列打包機就和迪爾公司的股份有限公司合作。這種打包機應用與割草機成直角平行的打包。</p
41、><p> 打包機1 由鋒利鉤鐮13包括:(1) 可旋轉式執(zhí)長刀中心軸在打結機框架內(nèi),線圈在鉗口內(nèi)形成纏繞在打結形成時保留線尾。鉤鐮的一邊是纏繞盤并且有一個纏繞的固定器提供纏繞線。在另一邊鉤鐮下邊每一個手柄臂提供手柄包括打包導向叉,鑄鐵刀片固定在叉子上來剪短打結線,手柄用來移動鉤鐮上的打結線圈。叉子包括一對靈敏的指狀物用來接收和導向,在最高點時兩個指狀物結合在一起。叉子的形成可以通過鑄造因此是強度很大的。</
42、p><p> 手柄,更適合用硬化鋼制成,是有一對狹槽的金屬板,在線穿入的地方有相應的孔。手柄的側面是凹進去的。手柄和叉子若是被一對螺絲釘固定,這樣就不可以任意通過狹槽,因此手柄和叉子被緊緊的固定在一起。手柄相對于叉子是可調(diào)節(jié)的,通過向后和想外移動手柄在平行的方向來調(diào)節(jié),在一定方向內(nèi)的平行伸長,螺絲釘就會變松。</p><p> 參照圖3,手柄放置的位置和鉤鐮凹進去的中心在外表和鉗口都是對應
43、的。在第一部分最大的鉗口是清晰可見的,在最近的距離內(nèi)鉗口部分通過旋轉鉗口來接近形成的結。</p><p> 相對于傳統(tǒng)完整的打結機手柄臂的在發(fā)明背景上的描述,需要建?;驈澢氖直墼谙鄳奈恢肁,B和C,如圖2為了調(diào)節(jié)手柄就從鉤鐮上合適的位置拆模來形成纏繞線圈,目前的發(fā)明獲得了簡單易行的調(diào)節(jié)通過松動螺絲釘和向后向外傾斜金屬板。這樣就需要手柄和叉子可以變形應用。</p><p> 和發(fā)明
44、的第二個具體表現(xiàn)相一致,如圖4,除了展示了手柄臂在最高點的圖形外,同樣還有手柄臂部分的展示和描述在圖4中。在圖4中手柄臂的部分展示包括手柄的主次部分,在適當?shù)慕嵌壤镞B接在一起,手柄上可調(diào)節(jié)的執(zhí)長刀表面的最高點是通過附件手段實現(xiàn)的,這里展示的是作為一對螺釘嵌入孔內(nèi)通過手柄和頂端。調(diào)節(jié)手柄的高度高于表面是通過嵌入和移動薄墊片手段完成的。薄墊片在這里展示的是墊圈形式。</p><p> 打結機的功能是用來纏繞包裹通常
45、簡要的描述成這樣。特涉及的參照圖1和圖5到圖9展示了打結的循序漸進過程。</p><p> 圖1展示了針穿過線貯藏在纏繞箱形成預先循環(huán)的條件,線的一端通過纏繞器在纏繞盤上。線穿過叉子在指狀物和大包的上部。作為包裹的形成和移動是和纏繞方向相反的,線延伸到包裹的表面外通過拉去更多的線進入纏繞箱。在圖5中展示,當包裹達到預先設定的長度,一個測量輪子使打結機活動,針從下面穿過第二個纏繞線拖動包裹的尾部,通過叉子穿過鉤鐮
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