SU54845A1 - Flexible hose making machine - Google Patents

Description

In the existing machines for the manufacture of cables and hoses, a system of discs with coils and a slider rotating near the mandrel is used, which is obtained by means of a lead screw; the latter changes the direction of its rotation by switching the coupling clutches by the slide itself.

In the machine, according to the invention, the lead screw of the slide during forward movement of the latter is connected by means of a gearing system, which is automatically activated by means of latches with the disks carrying the coils: during the return stroke, the screw of the slide is connected by means of another gearing system, also automatically activated , with a mandrel holder for reverse, rotating the latter when removed from a wound hose. A clamping device, made in the form of two jaws, connected by a system of levers with a roller, activated during reverse rotation of the slide screw, was used in the machine to hold the hose when removing the mandrel.

The drawing shows a diagram of the proposed machine.

The shaft 34, on which the friction clutches 6 and 7, interconnected by the switch 5, are mounted, receives from the electric motor 33, through a belt transmission, movement. From the shaft 34, through the gear 8 9, the rotation is transmitted to the lead screw 4. The latter, depending on the engagement of the friction clutches, rotates to the right and left side.

The slider /, mounted on the lead screw, receives a reciprocating movement, at the end of each stroke switching the friction clutches b and 7 by means of switch 5. The slider / is carried by the holder 2, in which the mandrel 3 is attached. depending on the diameter of the wound hose.

The gears 10, 13, 14, 15, 16, and 35 loose on the lead screw 4 are provided with ratchet teeth on the lateral surface, which engage with gear 10, / 5 14, 15, 16 and 554, respectively. The latter, except gear W, mates with circular processes of the disks 17, carrying coils 18, 19, 20, 21 and 22, respectively.

With the rotation of the screw 4

on the right side, the latches 12 drive gears 13, 14, 15, 16 and 35, which cause the coils 18, 19, 20, 21, 22 to rotate around the mandrel and wind the hose.

When switching the rotation of the spindle 4 in the opposite direction, the rotation of the reels stops as the latches 12 begin to slide along the teeth of the ratchets. At the same time, the latch // drives the holder 2, and with it the mandrel 3, through the ratchet and gears 10, 10. On the screw 4 against the last coil ending winding the wire helix, there is a threaded part connected to the clutch in section 23 24 such that when the screw 4 is rotated in one direction, the friction clutch 24 is opened; As soon as the screw 4 begins to rotate in the opposite direction, the friction clutch 24 is wedged and rotates the system of levers 25 and 26, causing the jaws 27 to come closer and thereby clamp the wound hose.

When the screw 4 rotates to the right, the slider /, moving to the right, causes the mandrel to be fed forward; the latches 12, by rotating the gears, cause the coils to wrap the materials successively around the mandrel, forming a hose. Since the feed of the mandrel is constant, and the rotational speeds of the coils are obtained by selecting gears, the necessary orbit pitch for each material is achieved. At this time, the latch 11 slides along the ratchet so that the system of gears 10, -10 is stationary, the friction clutch 24 is open, and the spring J2 keeps the jaws 27 in the open state.

The slider /, reaching the extreme position, will move the switch 5, the screw 4 will begin to rotate in the opposite direction; the latches 12 will slide along the teeth of the ratchet, and the rotation of the reels will stop, and the friction clutch 24, jammed, will cause the jaws 27 to clamp the hose. Latch 11 is engaged

and through the gear system 10 drives the spindle and the mandrel; the mandrel is then twisted out of the clamped hose. When the slider reaches the second extreme position, the process is repeated. In the event of a sudden break of the material or winding it from the reel, the tension on the roller 29 weakens and the spring 30 closes the contact 31 of the relay; thus, the current is turned on into electromagnets embedded in the jaws 27, which cover the end of the wound hose, preventing it from unwinding. The same relay interlocked with the motor switch turns it off and the machine stops at that moment; A beep or light is turned on to attract the attention of workers.

The subject matter of the invention.

Claims (2)

1.Machine for the manufacture of flexible hoses using a system of rotating planetary near the mandrel of the rollers on the disks and the slide carrying the holder for the mandrel and receiving the reciprocating movement with a spindle equipped with coupling couplings, switchable at the end of each stroke by the slide itself to change the direction rotation, characterized in that the driving screw 4 of the slide /, during the direct course of the latter, is connected by means of a gearing system, which is automatically activated by means of the latches 72, with the discs 17, uschimi coil, and during the return stroke by means of another system of gears 10, is also activated automatically by means of a latch 11, - with the mandrel holder 2 to rotate the latter during extraction from the wound hose. 2. In the machine tool according to claim 1, use a clamping device to hold the hose when removing the mandrel, made in the form of two jaws 27, turned on during reverse rotation of the slide screw 4 of the slide /. LO  oo Oi f-l o oh oh t4 ft o ed hp h f n f h h: “o - 4 RF and o rr but Г „ЬТ / liJ2. 112zzhshgig12e