SU23583A1 - Multi Band Saw Machine - Google Patents

Description

To the author's testimony of N. E. Ninua, dated March 2, 1930 (for V. svid, No. 65519).

On the issuance of copyright certificate published October 31, 1931.

A machine with several band saws is offered, in which, in order to maintain a constant tension on the drive belts during lateral movements of the saws together with pulleys, the supports of the latter, both upper and lower, are placed in the arcuate cut-outs of the machine crossbars, and the cut-outs are made radius equal to the distance from the axis of the drive shaft to the centerline of the lower fixed cross member of the machine, whose upper cross member, in order to tension the saw blade, is moved in the frame with the help of a handwheel, a screw and bevel gears.

In FIG. 1 shows schematically the front view of the proposed machine with four band saws, with the posts of the rear pair of saws not shown; FIG. 2 is a side view of the stgshka.

In racks L of the frame of the proposed machine, the cross beam L is fixed and movably on the screws O driven by the handwheel / and bevel gears q, the cross-link G Both crossbars are equipped with arc-shaped cuts in which the supports of the upper and lower pulleys are placed, with the cuts The crossbars are made along a radius equal to the distance from the axis of the drive shaft to the midline of the spring L (Fig. 1).

The supports of the upper and lower pulleys of each saw are connected to each other by the uprights t, the hook-like ends of which cover the respective supports. For the lateral displacement of the pulley, a screw f is designed, one part of which is placed in the cross section of the machine frame rigidly connected to the stand A, and the other in the crossbar connected to the stand t by means of a freely sliding sleeve. Machine pulleys - In connection with drive shaft pulleys A by a belt drive

The subject matter of the invention.

A machine with several band saws, characterized in that the supports of the upper and lower pulleys in it are placed on crossbars 1C and L in arcuate cuts in them, described for the lower fixed cross member L with radii from the center of the drive shaft A and for “{1 largest in terms of the size of the case, x-gtus, change change - / stretch | y1c% x belts with side1 pvremesh (11i to wow with covering forks, and screws / with the right and lera Yarezkami,

.in the crossmembers and the upper part of the crossheads, in order to establish a link with the free W stand and with the W stand, and the second - motionless with the A stand of the machine frame, in which

for moving up and down rto- i of the pickup P and bevel gears f and d-.

 saws, screws O, included in nuts in cross-member K and manually rotated by means of max

fig I

fig g

LP

AT

fl

Lkc

A p

cd

-LP

tl