DE297554C

DE297554C -

Info

Publication number: DE297554C
Application number: DENDAT297554D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 297554 *- KLASSE 52 b. GRUPPE- M 297554 * - CLASS 52 b. GROUP

Bohr- und Stüpfelvorrichtung für Stickmaschinen.Drilling and stamping device for embroidery machines.

Patentiert im Deutschen Reiche vom 17. Mai 1916 ab.Patented in the German Empire on May 17, 1916.

Es sind Bohr- und Stüpfelvorrichtungen für Stickmaschinen bekannt geworden, bei denen es bei gleichbleibender Bewegung des Antriebes möglich ist, die Bohrer und die Stüpfel mit veränderbarem Hube in den Stickereistoff einstechen zu lassen, zum Zwecke, dem Bohr- und ' dem Stüpfelzeug dauernd die gleiche Einstechtiefe zu erhalten. Es beruht diese Maßnahme auf der Tatsache, daß in der Regel der Bohrer durch mehrmaliges Nachschleifen oder Nachfeilen, das zur Erhaltung seiner Schneidschärfe nötig ist, verkürzt wird, währenddem der Stüpfel seine ursprüngliche Länge beibehält.
Ferner sind selbsttätige Bohr- und Stüpfel-There are drilling and stamping devices for embroidery machines are known in which it is possible, with constant movement of the drive, to let the drill and the stump pierce with a variable stroke in the embroidery material, for the purpose of drilling and 'the stamping tool permanently the same To obtain penetration depth. This measure is based on the fact that, as a rule, the drill is shortened by repeated regrinding or filing, which is necessary to maintain its cutting sharpness, while the stump retains its original length.
Furthermore, automatic drilling and stamping

¹S vorrichtungen bekannt geworden, bei denen mit Rücksicht auf dieses verschiedene Verhalten der Bohrer und Stüpfel für das Bohrzeug und das Stüpfelzeug je eine besondere, selbständige Triebwelle vorgesehen ist. Die Wirkungsweise solcher Vorrichtungen ist so gedacht, daß man dem Bohrer und dem Stüpfel zum Arbeiten durch Änderung der Winkelausschläge der treibenden Wellen verschieden große Arbeitshübe erteilen läßt. ¹ S devices have become known in which, with regard to this different behavior of the drill and stump for the drill and the stump, a special, independent drive shaft is provided. The mode of operation of such devices is conceived in such a way that the drill and the stump can be given working strokes of different sizes by changing the angular deflections of the driving shafts.

Es sind weitere Bohr- und Stüpfelvorrichtungen bekannt geworden, bei welchen es sich um eine gemeinsame Triebwelle für das Bohr- und das Stüpfelzeug handelt. Den bekannten Vorrichtungen gegenüber soll sich die neue Vorrichtung durch einfachere Bauart auszeichnen. Die Erfindung betrifft eine Bohr- und Stüpfelvorrichtung für Stickmaschinen, bei welcher die Bohrer Und die Stüpfel jeder Stickreihe von einer gemeinsamen, wechselweise mit ihnen kuppelbaren Schwingwelle angetrieben werden. ³^ Die für beide Bohrerarten (Bohrer, Stüpfel) mit ein und derselben Grundbewegung wirkende Antriebstange ist durch zwei unabhängig voneinander einstellbare Kuppelstücke wechselweise mit einem auf der Schwingwelle festsitzenden Kulissenhebel kuppelbar, und diese Kuppelstücke sind zur Schwingwelle derart angeordnet, daß sie unabhängig voneinander ihr genähert oder von ihr entfernt werden können, so daß bei gleichbleibender Grundbewegung des Antriebs der Bewegungsausschlag der Schwingwelle, für beide Bohrerarten unterschiedlich, in einfacher Weise verändert werden kann.Further drilling and stomping devices have become known in which there is a common drive shaft for the drilling and stamping tools. Compared to the known devices, the new device should be distinguished by a simpler design. The invention relates to a drilling and stamping device for embroidery machines, in which the drills and the stamps of each row of embroidery are driven by a common oscillating shaft which can be alternately coupled to them. ³ ^ The drive rod, which acts with one and the same basic movement for both types of drill (drill, stump), can be alternately coupled to a link lever fixed on the oscillating shaft by means of two independently adjustable coupling pieces, and these coupling pieces are arranged on the oscillating shaft in such a way that they approach it independently of one another or can be removed from it, so that with constant basic movement of the drive, the range of movement of the oscillating shaft, different for both types of drill, can be changed in a simple manner.

In der Zeichnung ist ein Ausführungsbeispiel des Ernndüngsgegenstandes durch Fig. 1 in teilweiser Vorderansicht, und durch Fig. 2 in Seitenansichtj teilweise im Schnitt, dargestellt.In the drawing, an embodiment of the fertilizer is shown in FIG. 1 in part Front view, and through Fig. 2 in side view partially in section.

Mit ι ist das Gerüst einer zweireihigen Stickmaschine bezeichnet, mit 2 die Nadelschiene einer unteren Stickreihe. 3 bezeichnet die Bohrer an der Bohrschiene 4, die von den verschiebbaren Stößeln 5 getragen wird, auf welchen je ein Kuppelfrosch 6 befestigt ist, in welchen eine Rolle 7 des Hebelarmes 8, der auf der den Bohrern und Stüpfeln gemeinsamen Schwingwelle 9 sitzt, kuppelnd eingreift. Die Stüpfel 10 sitzen an der S tüpfelschiene 11, die von verschiebbaren Stößeln 12 getragen wird, welche je mit einem Kuppelfrosch 13 versehen sind,With ι is the frame of a two-row embroidery machine denotes, with 2 the needle bar of a lower row of embroidery. 3 denotes the drills on the drill rail 4, which is carried by the slidable rams 5, on which ever a dome frog 6 is attached, in which a roller 7 of the lever arm 8, which is on the Drills and stomping common oscillating shaft 9 sits, engages coupling. The stumps 10 sit on the stipple rail 11, the sliding Pestles 12 is carried, each of which is provided with a dome frog 13,

Claims

with which the roller 14 can be brought into coupling engagement with a corresponding lever arm 15 seated on the shaft 9 when the oscillatable and also axially displaceable shaft 9 is displaced in the axial direction. In the position shown for the parts, the drills are coupled to the oscillating shaft 9. If the latter is shifted to the right (FIG. 1), the stumps are coupled to the oscillating shaft 9 and the drill is uncoupled. This alternating coupling and uncoupling of the drills and stumps with respect to the common oscillating shaft 9 is known. The oscillating shafts 9 of both rows of embroidery are connected to one another by lever arms 16 and a coupling rod 17. The axial displacement of the oscillating shafts 9 is carried out by a shaft 18 which is held on the machine frame by means of bearings 19 and is provided with eccentrics 20 which engage between adjusting rings 21 which are firmly seated on the shafts 9 and thereby control the oscillating shafts 9, so that when the shaft 18 swings out by means of the control rod i8 ^a, the oscillating shafts 9 are axially displaced back and forth.

The drive for the shafts 9 engages the upper shaft 9, but could of course just as well on the lower one. Shaft to be connected. It has a link lever 22 firmly attached to the upper shaft 9, which can engage with a link block 23 on the left and a link block 24 on the right, depending on whether the shaft 9 is shifted to the left or right (FIG. 1). The two sliding blocks 23, 24 serving as coupling pieces can be adjusted and locked independently of one another in slots of a forked rod 25 (in the drawing, a manually movable adjusting screw is simply provided for this adjustment), so that they can approximate the shaft 9 to different degrees as desired or can be removed from it; however, this adjustment of the coupling pieces could also be done mechanically. The rod 25 is guided at the top by the link 26, which is mounted on the frame 1. With a sliding block 27, it engages at the bottom in a drive link 28, which is pivotably mounted at 28 * on the frame and is driven by the crank 30 by means of the connecting rod 29, the latter being attached to the quickly and independently driven auxiliary shaft 31. An adjusting rod 32, which can be adjusted either by the author or by the hand of the sticker, engages the rod 25, whereby it is possible to change the basic movement given to it with regard to the stroke size, depending on whether the rod 25 closer to .the fulcrum 2δ ^{Λ of} the propulsion link 28 is moved closer or more removed therefrom. To stop the drilling and stomping tool, the sliding block 27 ^{is relocated to the pivot point 28 a of} the driving gate 28 in a known manner. Finally, it should also be expressly emphasized that the present invention is equally suitable for both pantograph and automatic machines. It should also be mentioned that, instead of the drive rod 25, the link lever 22 could be forked and then the coupling pieces could be adjustably fastened in its legs lying on this side and on the other side of the drive rod.

P Λ T E N T - A N S P R U C II:P Λ T E N T - A N S P R U C II:

Drilling and stamping device for embroidery machines, in which the drill and the Stitches of each row of embroidery from a common, alternately connectable with them Oscillating shaft are driven, characterized in that the for both types of drill with one and the same basic movement acting drive rod (25) by two coupling pieces "^, 24) alternately with one on the rocking shaft (9) tightly seated Ku-'lissen lever (22) can be coupled and this Coupling pieces approached or removed from the oscillating shaft (9) independently of one another can be. .

1 sheet of drawings.