SU1382559A1 - Arrangement for rolling articles - Google Patents

Description

(21) 3882573 / 25-27

(22) 04/08/85

(46) 03/23/88. Bul № 11

(71) All-Union research instrument-institute

(72) R.Ya. Cherednikov, P.P. Kostin, A.V. Polkov and E.A. Zakharov

(53) 621.753 (088.8)

(56) USSR Author's Certificate No. 867495, cl. B 21 H 1/20, 1978.

(54) DEVICE OF THE ROLLING OF PRODUCTS

(57) The invention relates to the processing of metals by pressure and can be used when rolling products with a profile end part from piece blanks. The purpose of the invention is to improve technological capabilities by increasing the length of the profiled part of the products and increasing

their qualities. On the frame of the device, a loader of workpieces is mounted in a working stand with rollers periodically rotating from the drive. Along the rolling axis, the upper wiring is in the form of a ring and the bottom in the form of a rod.

Both wiring is spring-loaded relative to the frame and connected to the ends of U-shaped tons. The pipes are installed in the guide frames and can be displaced in a reciprocating and synchronous fashion from a cam acting on their free ends and placed on the input shaft of the drive rolls. When loading the work rolls, the workpiece moves in the direction of the upper wiring, and thus its end portion is profiled. Since the diameter of the wiring hole connects 0.95-0.99 of the diameter of the circumference of the gauge, then the upper wiring reliably guides the workpiece during rolling. After rolling completion, the bottom wiring is deflected, and the product falls into the container under its own weight. 1 3.p. f-ly, 4 ill.

with

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11382559

the invention relates to processing

Chto ve ve in during its price

metals by pressure and can be used when rolling products with a profile end part of piece blanks.

The purpose of the invention is to expand the technological capabilities by increasing the length of the profiled part of the products and improving their quality.

Figure 1 shows a device for rolling products from piece blanks; Fig. 2 is a kinematic diagram of the mechanism for synchronous movement of upper and lower wiring; Fig. 3 and 4 are examples of closed gauges for various types of products.

The rolling device comprises a frame, a billet feed mechanism 2 mounted thereon, a multi-roll mill drive consisting of an electric motor 3 connected to a worm gear 4, which through shaft 5 and bevel gears 6 is connected to the input shaft 7 of the working stand and work rolls 8 with segments 9. The upper wiring 10 is made in the form of a sleeve installed with the possibility of reciprocating movement in the guides 11 hundred

spring 12. The lower wiring 13 is also spring-loaded relative to the frame by the spring 14. The synchronization unit for moving the upper and lower wiring is made in the form of a profile cam 15 mounted on the input shaft 7 of the working stand, as well as two U-shaped grids 16 and 17 connected by one ends with wires 10 and 13, and free ends with a cam 15. On frame 1, a frame 18 is mounted to remove the products after rolling. Experimentally, the dependence of the diameter

Pa hole of the upper wiring diameter gauge cage d .:

extra

from

d - (0.95 - 0.99) d

y

to

With d g values of 0.99d | the workpiece is curved during the capture by segments in the initial stage of rolling, which leads to poor quality of the profile, with the values d ds, 95d | the workpiece is stuck in the hole of the upper wiring and is not

." 50

1. Device for rolling products from piece blanks, mainly with a profiled end part, containing a working multi-roll stand with a roll drive mounted on a frame, coaxially arranged upper and spring-loaded lower wiring, a mechanism for supplying blanks to a working stand, characterized in that the purpose of expanding technological capabilities by increasing the length of the profiled part of the products and improving their quality, the upper wiring is installed with the possibility of reciprocating synchronous transfer lower wiring space through a synchronization node, kinematically connected

enough segments, i.e. profile with the drive of the work rolls, and you

0

five

0

five

0

The workpiece 19 from the feed mechanism 2 through the opening of the upper wiring 10 between the segments 9 falls on the end of the lower wiring 13, while the upper end of the workpiece 19 is in the hole of the upper wiring 10. A multi-roll working stand drives the segments 9 that rotate the workpiece 19 and, moving it up, profile its bottom end.

Simultaneously with the start of rolling, the cam 15 of the synchronization unit begins to move the upper wiring 10 in the bed guides 11 and the lower wiring 13, whereby the lower end of the workpiece during rolling always rests on the end of the lower wiring and the upper part of the workpiece is fixed during the top wiring hole, which allows centering the workpiece with high precision. After the end of rolling with a special mechanism (not shown), the lower wiring deviates from the rolling axis, and the rolled product falls on the frame 18, and then into the container installed next to the device. Then, under the action of the cam 15 and the springs 12 and 14, the wiring 10 and 13 return to their original position.

35

40

45

50

Claims (2)

1. Device for rolling products from piece blanks, mainly with a profiled end, containing a multi-roll working stand with a roll drive mounted on a frame, coaxially arranged upper and spring-loaded lower wiring, a mechanism for supplying blanks to a working stand, characterized in that technological capabilities by increasing the length of the profiled part of products and improving their quality, the upper wiring is installed with the possibility of reciprocating synchronous transfer lower wiring space through a synchronization node, kinematically connected No harvesting occurs. The device works as follows. Completed in the form of a spring-loaded relative to the frame of the sleeve, the bore diameter of which is 0.95-0.99 diameters of the circumscribed circumference of the rolls of the working stand. 2. The device according to claim., TL and - chuap; it is that the synchronization unit for moving the upper and lower wiring is made in the form of a profile cam mounted on the input shaft of the drive of the work rolls and two U-shaped grids installed in the guide beds, one end of each of which is connected to the corresponding wiring, and the other is mounted to interact with the cam profile surface, while the lower wiring is installed with the possibility of deviating from the axis of rolling its final stage. tsht Have 13 Phi. &. 2 Fig.Z FIG.