DE1535313C3

DE1535313C3 -

Info

Publication number: DE1535313C3
Application number: DE1535313A
Authority: DE
Inventors: Friedrich-Wilhelm Bassing; Gerhard Dipl.-Ing. Hofmann
Original assignee: Alfa Laval Bergedorfer Eisenwerke GmbH
Current assignee: Alfa Laval Bergedorfer Eisenwerke GmbH
Priority date: 1951-01-28
Filing date: 1951-01-28
Publication date: 1974-05-30
Also published as: DE1535313A1; DE1535313B2

Description

Auf der Antriebswelle 15 ist ein Zahnrad 16 angeordnet, das mit einem Zwischenzahnrad 17 in Eingriff steht, welches auf einem Zapfen 18 an der Gestellwand 1 gelagert ist. Das Zwischenzahnrad 17 steht weiterhin mit einem auf der Kurbelwelle 12 angeordneten Zahnrad 19 in Eingriff. - ;A gearwheel 16 is arranged on the drive shaft 15 and meshes with an intermediate gearwheel 17 stands, which is mounted on a pin 18 on the frame wall 1. The idler gear 17 is also in engagement with a gear 19 arranged on the crankshaft 12. -;

Die Kurbelwelle 12 wird von der übeiwdje gesamte Maschinenbreite durchgehenden Antriebswelle an beiden Seiten der Webmaschine angetrieben. Hierdurch kann die Kurbelwelle 12 schwächer dimensioniert werden, als bei einseitigem Antrieb.The crankshaft 12 is from the übereiwdje entire Machine width continuous drive shaft driven on both sides of the loom. Through this the crankshaft 12 can be dimensioned weaker than with a one-sided drive.

Wenn die Kurbelwelle 12 mit gleicher Drehzahl umlaufen soll wie die Antriebswelle 15, haben die Zahnräder 16 und 19 die gleiche Zähnezahl. Vorzugsweise wird jedoch die Zähnezahl des Zahnrades 16 der Antriebswelle 15 kleiner bemessen, als die Zähnezahl des Zahnrades 19 auf der Kurbelwelle 12, so daß diese wesentlich langsamer verläuft als die schneller laufende Antriebswelle. Bei gleichbleibender Beanspruchung ist die Leistungsübertragung der Antriebswelle 15 um so größer, je höher übersetzt diese zur Drehzahl der Kurbelwelle 12 umläuft. Durch die Anordnung der Kurbelwelle zwischen den Webschäften und dem Ladenbalken und der Antriebswelle hinter den Webschäften kann eine große Untersetzung erzielt werden. Da die Kurbelwelle 12 mit der Antriebswelle 15 an beiden Enden der Webmaschine durch Zahnräder 16,17 und 19 verbunden ist, ergibt sich eine besonders stabile Antriebsanordnung und ein ruhiger, schwingungsarmer Lauf der Maschine, der höhere Arbeitsgeschwindigkeiten zuläßt. If the crankshaft 12 is to rotate at the same speed as the drive shaft 15, the Gears 16 and 19 have the same number of teeth. However, the number of teeth of the gear is preferred 16 of the drive shaft 15 dimensioned smaller than the number of teeth of the gear 19 on the crankshaft 12, so that this runs much slower than the faster running drive shaft. With the same The higher the gear ratio, the greater the load, the greater the power transmission of the drive shaft 15 this rotates at the speed of the crankshaft 12. By arranging the crankshaft between the Heald frames and the store beam and the drive shaft behind the heald frames can be a large Reduction can be achieved. Since the crankshaft 12 is connected to the drive shaft 15 at both ends of the loom by gears 16, 17 and 19 is, the result is a particularly stable drive arrangement and smooth, low-vibration operation of the Machine that allows higher working speeds.

Auf der Antriebswelle 15 können weiterhin Schlagexzenter 20 zur Betätigung einer nicht dargestellten Schützenschlagvorrichtung angeordnet sein. Die Schlagexzenter 20 können dabei um so sanftere Erhebungskurven aufweisen, je höher übersetzt die Antriebswelle 15 relativ zur Kurbelwelle 12 rotiert.Percussion eccentrics 20 for actuating a not shown can continue to be on the drive shaft 15 Be arranged shooter striking device. The impact eccentric 20 can be so have gentler elevation curves, the higher the gear ratio of the drive shaft 15 relative to the crankshaft 12 rotates.

Die in Fig. 3 dargestellten Mittelböcke 2 sind kastenartig ausgebildet, wobei die Kröpfungen 12 α der Kurbelwelle 12 innerhalb der beiden Seitenwände 2 α und 2 b angeordnet sind. In jeder Seitenwand 2 α bzw. 2 b ist ein Kurbelwellenlager 21 für die Kurbelwellenzapfen 12 b. Die Ladenstützenbolzen 14 α der Ladenstützen 14 sind ebenfalls in den Seitenwänden 2 α und 2 b des Mittelbockes gelagert. Der Ladenbalken 10 ist an einem Auflageteil 14 b The center brackets 2 shown in Fig. 3 are box-like, the cranks 12 α of the crankshaft 12 are arranged within the two side walls 2 α and 2 b . In each side wall 2 α or 2 b is a crankshaft bearing 21 for the crankshaft journal 12 b. The shop support bolts 14 α of the shop supports 14 are also mounted in the side walls 2 α and 2 b of the central bracket. The loading bar 10 is on a support part 14 b

ίο der Ladenstütze 14 befestigt.ίο the shop support 14 attached.

Am rückwärtigen Teil des Mittelbockes 2 sind Lager 22 für die Antriebswelle 15 sowie eine Lagerfläche 2 c für die nicht dargestellten Streichbaumstützen angeordnet. An der Unterseite des Mittelbockes 2 sind die unteren Rollen 23 für die Betätigung der Webschäfte 8 gelagert.On the rear part of the central frame 2, bearings 22 for the drive shaft 15 and a bearing surface 2c for the backrest supports, not shown, are arranged. The lower rollers 23 for the actuation of the heald frames 8 are mounted on the underside of the central frame 2.

An den Seitenwänden 2 α und 2 b befinden sich Paßflächen 2 d und 2 e sowie eine Bohrung 2 / für die Halterung der Längsriegel 3. An der Vorderseite desOn the side walls 2 α and 2 b there are mating surfaces 2 d and 2 e and a hole 2 / for holding the longitudinal bolt 3. At the front of the

ao Mittelbockes 2 sind Paßflächen 2 g für die Befestigung des nicht dargestellten Brustriegels 4 angebracht. ...-:-..-.ao middle bracket 2 mating surfaces 2 g are attached for the attachment of the chest latch 4, not shown. ...-: -..-.

Die Mittelböcke 2 können jeweils vorgefertigt und bei der Montage der Webmaschine in der erforderliehen Stückzahl zwischen den Gestellwänden 1 eingebaut werden, so daß sich insgesamt eine baukastenähnliche Konstruktion ergibt, welche die Fertigung, die Lagerhaltung und die Montage vereinfacht. The middle frames 2 can each be prefabricated and required for the assembly of the loom Number of pieces to be installed between the frame walls 1, so that a total of one construction kit-like construction results, which simplifies production, storage and assembly.

Durch den Wegfall der schweren Mittelladenbewegungen ergibt sich eine günstigere Lage des Massenmittelpunktes der gesamten Weblade einschließlich der Ladenstützen und dadurch ein ruhigerer Lauf der Webmaschine. Der Angriffspunkt der Kurbelstange 13 an der Ladenstütze 14 liegt besonders günstig in der Nähe des Ladenbalkens 10 weit vom Ladenstützenbolzen 14 α entfernt. Hieraus ergeben sich höhere und günstiger aufzubringende Ladenanschlagskräfte.The elimination of the heavy center sley movements results in a more favorable position of the center of gravity of the entire sley including the sley supports and thus a smoother running of the loom. The point of application of the connecting rod 13 on the shop support 14 is particularly favorable in the vicinity of the shop bar 10 far from the shop support bolt 14 α . This results in higher loading forces that can be applied more cheaply.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 . 2. Machine width continuous crankshaft, still in claims: crank drives arranged in a central area of the sley are used.

1. Loom with more than two shop- The invention is therefore based on the task of creating movements, one over the entire machine 5 a weaving machine with more than two shop width continuous drive shaft, one before conditions of the type mentioned, the heald frames lying, continuous Course, which avoids the previous disadvantages and by means of a shaft as well as at its crankings, a novel arrangement and design of the neten, with a short power transmission path on the drive devices of the sley higher and saddle supports articulated, thus cheaper to apply slack stop forces and characterized in that the Crank enables a significant reduction in the bending stress shaft (12) between the sley and the vorgungen of the sley supports and is arranged through the most heald shaft (8 α), which leads to a reduction in the crank rods (13) which impair the running of the machine in the vicinity of the shop beam Mass forces and vibrations Attack an Er- (10) on the shop supports (14) and allow an increase in the working speed.
The crankshaft (12) from the drive shaft (15) is achieved in that the belwelle arranged at both ends of the loom is driven between the sley and the foremost gearwheels (16,17,19). Heald frame is arranged, the connecting rods in the,

2. Loom according to claim 1, characterized in the vicinity of the shop bar on the shop supports, that the drive shaft (15) engage behind 20 and the crankshaft from the drive shaft the heald frames (8) is arranged. over arranged at both ends of the loom

3. Loom according to one of claims 1 gear wheels are driven.

and 2, characterized in that the mitt- By this arrangement of the crankshaft and the

Leren store supports (14), which can support at this articulated point of application of the crank rods on the store crank rods (13) and the associated 25, higher store stop forces generate cranks (12 a) of the crankshaft (12) and the bending stresses of the store supports in box-like center brackets (2) can be significantly reduced so that these lighter crankshaft bearings (21), drive shaft bearings can be formed, which in turn leads to a (22) and bearings for the store support bolts reducing the inertia forces and vibrations (14 α) are arranged. 30 leads and a higher working speed of the

Loom enables.

In the following preferred embodiments of the invention with reference to the

The invention relates to a weaving machine explained with more drawings. It shows

than two store movements, one across the entire 35 F i g. 1 shows a schematic cross section through the machine-width continuous drive shaft of a weaving machine with the view of a central frame,
in front of the heald frames, continuous FIG. 2 shows a schematic view of the weave

The crankshaft and its cranked machine with a view of the outside of the racks, with a short power transmission path to the shop wall, and
support hinged connecting rods. 40 Fig. 3 a perspective view of a central

In the case of the British patent 486 990 bockes.

known weaving machines of this type is the crank- The weaving machine has two outer frame

wave under the sley between this and the walls 1, through longitudinal bars 3 and a chest pivot points the shop supports arranged, with bar 4 with one or - with wider Webmaschidie Connecting rods at a central area of the 45 nen - several middle brackets 2 are connected. Shop supports are steered. This construction has the frame walls 1 also support a superstructure 5. the disadvantage that the loom wound on a warp beam by the crankshaft

The forces transferred to the connecting rods to the chain K runs over a backrest 7 and passes shop supports far below which attack the main part of the healds of the heald frames 8 and the sley that is attached to the moving mass and the sley 9 attached. The fabric G runs the shop supports for receiving the very strong ones over the chest bolt 4 and is removed from the tree of goods 11 and in rapid succession that are oppositely effective.

Bending forces must be carried out very difficult, the crankshaft 12 is between the foremost

which in turn undesirably increases the inertial forces and the oscillation heald frame 8 α and the shop beam 10 of the loom. '55 drawer arranged. The shop beam 10 is supported by lasind looms with only two shop end supports 14, which are pivotably mounted on the Swiss patent 123 142 shop support bolts 14 α. The crankshaft 12 is known with movements in which the shop supports cranks 12 α provided, on each of which are formed with crank springs and are rotatably fastened by in the area of the rods 13, which are attached to their side frame walls at the level of the sley at the other end the area of the shop bar ordered crank mechanisms are driven. At the 10 lying points of the shop supports 14 articulated-like looms without middle shop supports are.

in which it is easily possible, the crankshaft The crankshaft 12 is from a behind the

drove in the area of the ends of the sley side heald frames 8 arranged over the entire outside of the heald frames of this unimpeded 65 machine width continuous drive shaft 15 to be arranged, which are driven by wide looms, which in turn are not produced by a Drive problems for the middle represented electric motor over a likewise not represented shop supports not on, so that neither one is driven via the reduction gear set.