SU895570A1 - Mandrelling lock of pilgrim mill feeding apparatus - Google Patents

Description

(54) DORNOVA LOCK OF THE FEEDING MACHINE OF THE PILGRIM MILL

I

The invention relates to pipe equipment, in particular, to mandrels of the feeding apparatus of a pilger mill.

Known mandrel locking feeder pilgrim, mill, comprising a housing, a lid, a mechanism for longitudinal movement of the lid, having a carrier arm with a magnet attached to it and a rotational drive in the horizontal plane, placed on the carrier arm with a two-arm lever, one end in contact with the lug ledge, the other with a spring-loaded rod through the cylinder and the end of the lid, while at the same time turning water is made in the form of a pneumatic cylinder mounted on a carriage coupled to the feeding device 1.

The disadvantage of this device is that when the mandrel is fed to the line of the mill, its head does not coincide with the socket in the case of the mandrel lock for receiving it. And then there is a need for a longitudinal movement of the corpus lock body to achieve the desired alignment.

The corpus lock body is moved together with the carriage of the feeding device, but

at the moment of movement of the body of the mandrel lock, the flap is open and is filled with a dimple pin.

Since the shaft carrying the double-arm lever does not have the possibility of axial movement, its shaft may break or bend. Moreover, at the moment of engagement with the carriage, the feeding device moves with great speed, which leads to breakage of parts due to rare carriage jolts.

All this reduces the reliability of the device.

The aim of the invention is to increase the reliability of operation.

Claims (1)

To achieve this goal, in the proposed rotary lock of the feeder of the pilger mill, comprising a housing, 15 its lid with a protrusion on the outer surface, a latch of the working position of the lid in the form of a spring-loaded rod, a longitudinal movement mechanism of the lid having a carrying arm with a rotational drive in the horizontal plane, moved 20 a shaft on it with a double-arm lever, one end in contact with the lug protrusion, and the other through a slipper with a spring-loaded rod and the rear end of the lid. shaft placement on the carrier arm is made through the supports attached to it and the sleeve installed in them, with respect to which the shaft is spring-loaded and secured against rotation, and it has a rotational drive in a plane perpendicular to the plane of rotation of the carrier arm. FIG. 1 shows the device, a general view; in fig. 2 - view A of FIG. one; in fig. 3 is a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 3; in fig. 5 is a section of YYD in FIG. 3; in fig. 6 is a section d-d in FIG. five; in fig. 7 shows section EE of FIG. 3. Dornovy lock includes a housing 1, its cover 2 with a protrusion 3 on the outer surface, the lid working position of the lid, the mechanism of longitudinal movement of the lid having a carrier arm 4, its rotation drive in the form of a pneumatic cylinder 5, placed on the bearing arm shaft b with two shoulders 7. The latch of the working position of the cover is made in the form of a spring-loaded hollow rod 8, a removable thrust ring 9, a spring 10, a stopper 11, a lock washer 12, under which a transverse groove 13 is made in the body 1. On the supporting area 14, a frame 15 is mounted, which To fasten the axis 16 of the carrier arm 4 and the pneumatic cylinder 5. The shaft 6 is mounted on the carrier arm 4 through the supports 17 attached to it and the sleeve 18 installed in them, relative to which the shaft 6 is fixed against rotation by the key 19 and is axially displaced by compressing the spring 20. The spring 20, the cap 21 and the nut 22 provide for the retention of the shaft 6 in the initial extreme right position. The sleeve 18 has a rotational drive in a plane perpendicular to the plane of rotation of the carrying arm, which is made in the form of a pneumatic cylinder 23 pivotally mounted on the lever 4 of the latter 23. The latter through the rod 24, the pin 25 and the lever 26 is connected to the sleeve 18. The ball 6 bears the double-shouldered lever 7, one end of which is in contact with the protrusion 3 of the cover, and the other through the pin-holder 2 / - with the spring-loaded rod 8 and the end of the cover. To adjust the height of the carrier arm 4, the axis 16 is threaded on which the nut 28 is screwed. The sleeve 29 rests on the surface of the nut 28. The nut has slots for fixing the stopper 30 against any rotation. The device operates as follows. In the initial position, the carrier arm 4 is positioned parallel to the axis of the mandrel. Compressed air enters the rod end of the pneumatic cylinder 5. The double-arm lever 7 is rotated as shown in FIG. 4 dotted lines. Compressed air is continuously supplied to the piston cavity of the pneumatic cylinder 23, which fixes the double-arm lever in the initial position. In order to open the cover 2, compressed air is supplied to the piston cavity of the pneumatic cylinder 5. The carrier arm 4 is deployed to occupy the position shown in FIG. 1. In contact with the protrusion of the third cover of the two shoulders of the lever, the latter turns. Moreover, at the initial moment the pneumatic cylinder 23 resists turning, and then, when sleeve 18 with shaft 6 turns 10 ° and a dead point is passed, the pneumatic cylinder will accelerate the rotation of the double-arm lever, which will lower the spring-loaded rod 8 with its pin 27. freedom of movement and under the influence of the pneumatic cylinder 5 will open. In such a position, when the lid is open, the used mandrel is removed and fresh can be served. In order to receive a fresh mandrel, it is often necessary to move the mandrel lock. If, with the lid open, held by the two shoulders, it is necessary to displace the housing 1 of the mandrel lock, then the shaft 6 will axially move, compressing the spring 20, and no breakage will occur. After laying the mandrel, compressed air is supplied into the rod cavity of the pneumatic cylinder 5. The carrier arm 4 will begin to turn in a horizontal plane. When this pin utaplivate affects the end face of the cover 2, shifting it to the left (Fig. 4). When the cap selects its turn, the double-arm lever will rotate and take up its original position, after which the carrier arm may withdraw to its original position. In the following, all operations are repeated in the same sequence. The proposed design increases the reliability of operation, dramatically reduces downtime and equipment repairs. Claims of the invention Dornovy lock of the feeding apparatus of the pilgrim mill, comprising a housing, its lid with a protrusion on the outer surface, a latch of the working position of the lid in the form of a spring-loaded rod, a mechanism for longitudinal movement of the lid, having a carrying arm with a turning drive in the horizontal plane, a shaft with two shoulders a lever, one end in contact with the lug of the lid, and the other through a pin-holder with a spring-loaded stem and rear end of the lid, characterized in that, in order to increase adezhnosti work shaft placing the support arm is provided through attached thereto and supports a sleeve mounted therein, relative to which the shaft is spring loaded and secured against rotation, and it has View / rotational drive in a plane perpendicular to the plane of rotation of the carrier arm. Sources of information taken into account during the examination 1 USSR Author's Certificate No. 520142, cl. B 21 B 21/00, 1974. five IN ///////// X Fi.g.6 FIG. 7