DE87567C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

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The rolling device shown in the accompanying drawing is used to taper the wheel spokes in the middle, while the same remain thick at the attachment points at both ends. The rolling is carried out by the non-displaceable pair of rollers ww ¹ , to which several of the wires if to be processed are fed.

In the embodiment shown, two wires are processed at the same time. The wires are moved by the carriage ss ¹ , in which the bushings bb ^{l are} rotatably inserted.

The wires are passed through this and are held in place by the clamping screws kk ¹ . The back and forth movement of the carriages causes the crank disk t, which is seated on the drive shaft α and which is connected to the carriage s by the rod c, lever c ¹ and the rod c ² .

The slide s ¹ is carried along by the clamped wire during rolling, and this slide is then withdrawn automatically by a weight g ¹ connected to the same by a cord g or the like when the slide s retracts.

When moving to the left (FIGS. 1 and 3), the upper roller w is automatically pressed against the lower roller n>^1; it rises again when walking back, and the wire makes a twist after every back and forth movement, so that it is worked on from all sides.

When the wire is moved to the left, the upper roller is pressed down by the eccentric disk e.

The lever e \ ^{rotatable at e 2} rests on this, and when it is pushed outwards by the eccentric disk against the action of the spring f, it presses against one of the inclined teeth of the wheel r above, causing it to move forward. As a result, a tooth of the wheel , which sits on the same shaft with the wheel r, moves the angle lever ρ provided with the nose, which carries the roller n> , so that it is pressed against the roller w ^l. Fig. Ι shows the roller in the depressed, Fig. 4 in the raised state.

The process is repeated with the next rotation of the disk t. It then engages the pawl e ³ behind the next tooth. The pawl h ¹ still engages in the wheel r; this not only prevents the wheel r from turning backwards, but also causes the wheel r to continue turning when the wire is pulled far enough, so that the nose slips off the tooth in question.

The pawl is arranged on the lever h , which has a stop at h ^2; when the movement of the wire is fairly complete, the same is ^{hit by the lug s 2} , which is located on the slide s ¹ . The arrangement of the catch s ² on the slide s ¹ offers the advantage that the disengagement of the roller w always takes place in good time, may be

have lengthened the wire much or less during rolling.

The rotation of the bushes b with the wire takes place when the latter is retreating, and the same is done by the worm i seated on the drive shaft α. This engages in the worm wheel i ^l , which is located on the shaft z ² . This carries at the lower end the ^{disc o provided with noses o 1} o ^2. The angle lever provided with a sliding roller /, which is connected to the driver I ¹ , rests on the same; the latter engages the teeth of the wheel m ¹ , on the shaft m of which the gear η is located, which engages in one of the gear wheels b mounted on the bushings b and provided with the same number of teeth and meshing with one another. If a nose of the disc hits ο the slider or the sliding roller Γ ^{2 of} the angle lever /, the driver V- is pulled down and takes the wheel m ¹ with it, whereby the rotation of the wheels η respectively. b ' ^{2 takes place} with the sleeves b and wires d .

The lugs ο and o are ¹ Grof different, in such a way that if a der'Nasen o ¹ b the role 'of the lever ² / true, it is moved so far the driver DAF Z ¹ the wheel ¹ m to two Teeth moved, while when the smaller lugs o ² hit the roller, the wheel is only moved one tooth each time. Four teeth o ¹ are arranged so that the wheel, which is provided with eight teeth, and each time also the bushings b and wires d are turned over by ^J / ₄ . After the latter has _{moved Y 4} four times and the wire has been rolled four times, the small teeth o ² make two more turns per ^l / _g .

This device ensures that the wire is rolled exactly round.

Claims (1)

Patent Claims: An automatic machine for rolling out the middle, thinner part of wire wheel spokes, characterized in that two carriages (s S ¹ J for rotatable clamping devices, one fs) inevitably and the other fs ¹ ) are positively moved back and forth while the one to be machined Wires between automatically adjustable rollers fw w ^l ) are pulled through in such a way that after each pulling of the wires the upper roller fw) is brought closer to the lower roller "(ψ ¹ ) and at the same time the wires with their clamping flaps Thehereverses, which are ultimately smaller, Experienced.
A machine under i. protected type, characterized by a device for pressing one roller fw) during the forward movement of the wire, consisting of the nose disc fe), which rotates the disc fr) through the lever fe ¹ ) provided with a pawl, whereby the lever fp) moves who carries the roller. ^;
A machine under ι. protected type, characterized by a device for disengaging the roller fw), consisting of the lever fh) provided with the locking and transport pawl fh ¹ ) and the catch fs' ² ) attached to the slide fs ¹ ). '> For this purpose ι sheet of drawings.