DE82822C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT DOCUMENT

GREAT

footwork.

Machine for connecting drive belts.

Patented in the German Empire on June 13, 1894.

The present invention provides a machine for stitching together Strips of leather, raw hides, canevas or the like for the production of drive belts, in which the staples in the material both in longitudinal rows, as in transverse rows can be stapled.

The essence of the invention consists in a particular arrangement of guide mechanisms to a transverse guide of the workpiece with simultaneous longitudinal guiding of the same in a known W ⁷ to obtain ice.

The accompanying drawings illustrate an embodiment of this invention. The devices used for longitudinal guidance are also of known construction in them detailed to facilitate understanding of the present invention.

Fig. Ι shows a front view of a quilting machine for drive belts,

Fig. 2 is a top view,

3 shows a longitudinal section,

Fig. 4 is a section along the line 4-4 of Fig. 2;

Fig. 5 shows a side view, seen from the side facing upward in Fig. 2,

Fig. 6 is a section along the line 6-6 of Fig. 5,

Figure j is an end view as seen from the side on the left in Figure 5.

The letter α denotes the machine frame and b an attachment which carries the devices for quilting and stitching; c is an anvil which operates simultaneously with the staple binding devices.

On both sides of the machine a pair of hollow rollers dd \ d ² d ^{3 are} attached, which can be made of any material, but are preferably turned from round bar iron. These rollers can be covered with rubber.

The upper roller of each set rests in fixed supports, while the lower Rolls are adjustable. The adjustability of the lower rollers against the upper, and the actuation of the longitudinal guide can be achieved by known devices and takes place in the embodiment shown in the drawings in the following way:

The lower rollers d ¹ d ^A are supported by rotatable frames e , which are each provided with a movable roller e ¹ at their pivot point and are held in their position by springs e ^2. An inclined mandrel attached to a rotatable lever / ^] abuts the roller e ¹ . The lever / carries a rotatable, spring-influenced locking pawl / ² , which can be actuated ^{by a locking device / 3} which is rotatably attached to the lever /. The latch / ²

engages in a fixed. Rack f * a. By raising or lowering the said lever by means of a handle / ⁵ , the pawl can be inserted into different teeth of the rack and thereby set the lower roller against the upper one.

One of the upper rollers, which is designated by d, carries a ratchet wheel g, in which a pawl g ⁵ engages, which is provided on an arm g * which is rotatably attached to the roller. A connecting rod g ^l connects a crank disk attached to the drive shaft g * with the rotatable arm g ⁱ \ by means of these devices the pawl can be moved up and down and thus the roller can be rotated intermittently.

The pawl g ⁵ is arranged to be reversible and can set the roller in motion in any direction. The pawl can be displaced in the longitudinal direction in a groove of the arm g * and brought into engagement with the ratchet wheel by a spring g ^6. The same is also bevelled on each side and is prevented from rotating by the fact that in the arm g " ⁴ grooves are made, in which an adjustable pin g ^{1 of} the pawl engages.

A button g ^s at the end of the pawl forms a device for retracting the latter so far that the pin can be released from the groove, the pawl turned around and the pin can be reinserted into the groove. Depending on the position of the pawl, the roller is moved in one direction or the other. In the first position, a stroke of the connecting rod drives the roller, the following stroke leads the pawl over a tooth of the ratchet wheel, while in the other position the opposite is the case.

The roller d carries a gear and is connected to a gear attached to the roller d ¹ through idler gears d ⁵ d ⁶ and to the roller d ² through bevel gears d ¹ d% shaft d ^d and bevel gears d ¹⁰ d ¹¹ . On this sits a gear wheel d ¹ , which transmits its movement to roller d ³ through intermediate gear wheels d ⁿ d ^li. By means of these devices, all of the guide rollers can be operated at the same time.

To produce a transverse guide for the workpiece, the attachment b is provided with a guide h which can be displaced in slide rails of the machine frame α; the anvil c is attached to this guide and can be moved up and down in the following manner (see FIGS. 6 and 7). The anvil rests on an arm i attached to the rod i, which rod is mounted in supports on the guide h. Another arm P

the rod i is connected by means of a rod z ' ³ with an eccentric ζ *, which is attached to a counter ^{rod z 5} , on which gear z ^{6 is} keyed, which in turn is connected to the drive shaft g ^{by an intermediate gear z' 7 s} attached gear i ^{s is} engaged.

A toothed rack j is attached to the guide h (FIG. 4), in which a toothed wheel j ¹ engages, which can be disengaged and engaged by an adjustable arm / ² (FIG. 6) and is keyed onto the shaft j ^B. The latter is by means of cylindrical wheels _ / ⁴ j with the shaft of the roller ⁶ in conjunction d. The bevel gear ⁸ d (s. Fig. 2) seated on the shaft ⁹ and can Ü means of a displaceable locking lever, besides m connection with the bevel wheel d? be set; the locking lever m is held in its position by the engagement of a pawl m ¹ in a fixed projection of the machine frame. The way these mechanisms work is as follows:

A set of guide rollers, for example d and d ¹ (see Fig. 3), is put into action and pulls the belt 2, which is laid over the machine frame α , intermittently through the machine, the staples being stapled in during the The pawl g slides over the teeth of the ratchet wheel. At the same time the roller d ^{s is} lowered and thus set to work. As soon as the longitudinal row of staples is stapled, the pawl g is turned over , the roller d is lowered and disengaged and the roller d ^z is pressed against the workpiece. The guide is now reversed and the belt is fed back through the machine with a different longitudinal row of staples being attached. This arrangement avoids repeated passage of the workpiece through the machine in the same direction. After the first longitudinal row of staples has been sewn in, the stitching devices are reversed to sew in a new longitudinal row of staples. i

If a transverse row of staples is to be stapled, the bevel gear d ^s is first set to connect with the wheel d ⁷ . The roller d ¹ is lowered and put into action, while the roller d ^{& is} pressed against the belt and clamps it against the roller d ^2. The wheel is thus held, since the rollers 'd' ² and d ³ no longer rotate. The gear β is now brought into engagement with the rack j and rotated intermittently by means of the devices described above, which bring the gear with the roller d in connection.

Claims (1)

The present invention can of course be embodied in various forms as well as the adjustability of the rollers for the longitudinal guidance of the workpiece and the Their actuation can be achieved by other equivalent means as those described can. The transverse guide for the workpiece can be combined with any of the longitudinal guides for the workpiece serving rollers are connected. , Pa te ν τ response: A machine for connecting drive belts by means of staples with longitudinal guidance of the workpiece through intermittently actuated guide rollers that can be rotated in any direction, in which a transverse guide for the workpiece is made possible by the fact that when the rollers are stationary, a toothed rack is coupled to the drive for the longitudinal guide a support (h) for the workpiece moves in the transverse direction. For this purpose ι sheet of drawings.