SU70875A1 - Machine for twisting on the links of the end sets of the loop - Google Patents

Description

Known machines for twisting on the links of the fastening sets of loops using two opposite-set, rotatable spindles. One spindle is supplied with a spring-loaded hook and the other with a clip.

The proposed machine is distinguished by the use of clamps installed between the spindles, which makes it possible to hold the ends of the loops as they are twisted.

To twist the ends of the loops on the workpiece, which is connected to the manufactured 1M link, the spindle, equipped with a clamp, is hollowed out and the attached link is passed into its hole.

The drawing shows schematically the proposed machine in three projections.

On the bed / installed two cast-iron headstocks: the rights of the headstock a and the left headstock b. In the right grandma is mounted a solid spindle 2, fitted with a spring-loaded hook 5, and in the left grandma there is a hollow spindle 4.

Spindles are put on cylindrical gears 5, which are in constant engagement with gears 6 mounted on reversing shaft 7. Tension springs 8 are installed in the headstock, which create some tension on the link material (due to which leveling of the coils takes place) and the spindles return to its original position after removing the twisted link from the machine. A clamp is located between the heads for gripping the ends of the workpiece, consisting of a stationary support W and a lever rotating on an axis //.

A friction reversible clutch 12 is mounted on the shaft 7, the bevel gears of which “are in constant engagement with the gear 13 of the worm gearbox.

Reversible coupling f2 informs spindle m 2 4 right or left rotation. Switching the reverse coupling on and off is performed by the handle J4.

No. 70875

On the channel 15 of the frame, a worm gear 16 and an electric motor 17 are mounted, which are interconnected by a soft cardan 18.

When the machine is in operation, the electric motor and gearbox work.

The semi-finished product coming out of the blank machine, at one end of the loop, is put on hook 3 of spindle 2, and the other end of it is passed inside hollow spindle 4 and secured. Both ends of the workpiece adjacent to the rod are simultaneously clamped in the clamp 9. Then the handle 14 is turned, and the spindles 2 and 4 begin to rotate simultaneously.

At the end of the twisting, the end of the workpiece adjacent to the rod slides out of the clamp, and the link stem can freely rotate in the slot of the clamp, thereby eliminating excessive twisting.

Upon completion of the twisting, the handle 14 is set to the neutral position, and the finished twisted link is dropped from the hook. A finger is removed from the second end of the released link, and the link is pushed inside the hollow spindle 4, leaving the end on the hook outside.

Then take the second billet and with one end of the hook hook on the ring of the link already protruding from the spindle. The workpiece with one twisted link is pushed into the hollow shpindle and secured with a finger. The second end of the workpiece is put on the hook of the solid spindle 2, and its middle part is clamped with a clip as indicated above. The entire cycle of operations is repeated until a set of necessary length is obtained.

To translate the machine into the production of additional sets of links of a different length, the left grandmother of the machine should be rearranged and clamped on the bed. At the same time, the small cylindrical gear located on the shaft 7 is also rearranged.

Subject invention

Claims (3)

1. A machine for twisting the links of the end sets of hinges using two oppositely mounted and rotatable spindles, of which one is equipped with a spring-loaded hook, and the second is a clamp, characterized in that, in order to keep the ends of the loops when tightening, clamps installed between spindles are applied. 2. The form of the machine under item I, characterized in that, with the aim of possible twisting the end of the loops on the workpiece, connected to the manufactured link and equipped with a clip, the mandrel is hollow to pass into its hole of the attached link. 3. The form of the machine according to paragraphs. 1 and 2, characterized in that, in order to be able to twist the ends of the loops simultaneously on both sides of the workpiece, the clamping spindle is spring-loaded.