SU35698A1 - The method of installation of the workpiece in pipe rolling mills - Google Patents

Description

The proposed method of installation in a pipe rolling mill consists of moving the core core with a core head separated from the mill table and moving axially forward to the output side of the mill and after inserting the workpiece into the mill table and then re-connecting with the mill table.

According to a modification of the method, the core hinge separated from the head is moved back to the inlet side and after insertion of the workpiece into the mill is moved back, followed by fastening with the head.

When performing the proposed method, a special device is used to secure the core of the rolling mill core. This device consists of a cartridge, covered by a ring washer, equipped with eccentrically located grooves on it. The cartridge carries radially

(ses)

a collar that is swiveled with a turn of the washer, with a spring-loaded lock that fits into the groove of the core shaft that is inserted into the socket of the cartridge.

In FIG. 1 shows the general arrangement; (Fig. 2, 3 and 4 are the core core; Fig. 5 is a longitudinal section of the cartridge for strengthening the core rod; Fig. 6 is a front view of the cartridge; Fig. 7-14, 15 and 16 are two examples of the device for connecting the core rod to the core head .

The core is moved by feed rollers or other mechanical means so that the core rod can be transferred from the material supply side to the output side and from there again to the supply side (Figs. 1 and 2). At the same time, there are devices that allow the core rod to be easily released from its support and re-connected to it; In addition, there are devices for removing the core head from the rod and for connecting them again without interfering with production.

The subject to stretching, i.e., placed on the other side of the mill, where the material is fed, the core rod b is on one side supported by the cartridge ch (fig. 2), and on the other is the core head rf. In front of the rolls, feed rollers are placed, grasping and pushing the core rod and capable of moving it in one direction or another. Instead of the rollers, the rod can also be moved by means of a pneumatic or hydraulic device in such a way that it can be removed from the mill from the feed side of the material so that it can be freely inserted into the material to be rolled (Fig. 3). Then, by the action of compressed air or hydraulically, the rod is pushed through i; through the empty, - subject to rolling body and again connected to the head (Fig. 4).

Rolling material can, of course, move on exit; from-to; without a break on the roller and in the direction of rolling, and hollow products can reach any length. T, Olora ;;; supporting core of the core. All rolling (Figures 5. and 6), o; (satisfied, fixed, but with the participation of

needs can be done .. also

o and -, - mobile, and sgbit from the cartridge with,

...; on which the ring can

.shchaiba / s... eccentrically located .-;. which slus, .- zh1g guides dl. spring

.-g-couplings A; .. these last are equipped with a lock.: ,,,, or, "connective 1M .. a tooth k, that is, under the action (in one hundred ... fspOHy), springs g When rotating .kol. Gtsevnoy. Washers / direction of the arrow 1,. Coupling L with teeth And A move outwards,

1 release while holding

(glimi. still through the groove I erased the ginneter of the ft of the core, which can be

-, - now; waiting:, core b washer core /

 Immediately rotate back on the arrows. r not 2. (fig. b) and, thus, the tooth k is brought

-, in the previous locking position.

Connection of rod b with chuck

occurs automatically by simply pushing the rod onto the chuck with the help of e rollers the cone-shaped end of the rod repels teeth that are beveled at this side and, having overcome the action of the spring /; then they re-enter the groove / rod, which ensures its connection with the cartridge.

FIG. 7-14 and 15 and 16 show two examples of a device for connecting a core head to a core rod. In the first of them (Fig. 7-14), the connection is secured by a bolt T having, on one side, a head l, and on the other a tee piece. The latter engages an appropriately arranged end p of the rod b and is held in this position by a ring coupling d under the action of the spring S; Disengagement can be made by simply moving the ring q away.

In the device of FIG. 15 and 16, the head d of the core advances on more tonic: the end of the rod b and; is held by a special valve l

. The subject of the patent.

Claims (3)

1. Method of installation of billets in pipe expansion rolling mills using a core; detachable with a nozzle and a table, different from AyUSHiye -Techna, that the ethane core rod b disconnected from the ethane table b by the sertex HEAD d move-in the axial direction-forward to the output side of the mill and after inserting the bale into the mill-move backwards, we rejoin the - the table of the camp. 2. The method of changing method according to claim 1, characterized in that the hinge rod 6 disconnected from the serger head is moved in the axial direction back to the inlet g: the toron, and after inserting the preform, the mill is moved back, followed by what. reattached with head d. 3. When performing the method. According to claim 1, the use of a device for hardening a core rod of a rolling mill, characterized by the use of a cartridge with a snare. an annular washer / provided with grooves g eccentrically located therein, as a powerful cartridge carries radially displaceable washers of the sleeve A, with spring locks k, which enter their notch a and the groove / core rod b inserted into the socket of the cartridge FIG. II Fig. | 2fig.i w: FIG. 13 U