SU1220835A1 - Apparatus for feeding continuous material into working zone - Google Patents

Description

The invention relates to the cold processing of meta; pressure shop and can be used to supply long material to the treatment area.

The aim of the invention is to improve the reliability and accuracy of the feed.

Figure 1 shows the device d, p feed long material in the treatment area; figure 2 - section aa in figure 1; in fig. 3- kinematic scheme.

The device consists of a receiving roller 1, which consists of two rows of supporting i (support) rollers 2, the axes of which are fixed to the cheeks 4 with nuts 3. not shown) and consisting of a prismatic guide 6 with a latch 7 and a spring-loaded spring 8. In the frame 9, an axis is rigidly fixed with nuts 10, on the projecting end of which a single-arm lever 13 is mounted on bearings 12. The axis 11 is hollow. Inside it passes the drive shaft 14, mounted on bearings 15, one end of which is connected through the coupling 16 to the output shaft of the gearbox 17, rigidly mounted on the base 9, and the sprocket 18 is fixed at the other end. The shaft 20 is mounted on the bearings 19 on the free end of the lever 13 At its end, located above the pusher 5, the nut 21 is rigidly fixed to the friction gripping body 22, made in the form of a feeding roll, and an asterisk 23 is rigidly fixed to the other end. The asterisks 18 and 23 are connected to each other by a chain 24 and are closed by a casing 25. 13 is inclined in the direction opposite to the movement of the material blanks, so that the plane passing through the axis 11 and the shaft 20 is inclined to the axis, the perpendicular of the plane of movement of the blanks at an angle whose value is determined by the following inequality.

(-) - S (.c, .ct ,.

where djf, is the diameter of the leading sprocket; djg - diameter of the sprocket; f is the center-to-center distance between the stars;

S1p

diameter of the feed roll

IP n

diameter of the supporting rollers;

doc axis diameter of the support roller;

f is the coefficient of sliding friction between the feed shaft and the material;

k is the rolling friction coefficient of the material on the support rollers.

The lever 13 is spring-loaded spring 26. The device is rotated 5 movement from the electric motor 27, which is fixed on the frame 9 by its flange. The shaft of the electric motor is connected to the high-speed gearbox shaft 17 via the coupling 28. The device is fixed on the press frame 29 as a whole. The device works as follows .

The friction, gripping member 22 is driven into rotation.

5 from the electric motor 27 through the gear 17, the shaft 14, the sprocket 18, the chain 24, the sprocket 23 and the shaft 20.

The pusher 5 is in the extreme right position so that

0, its latch 7 is located under the friction gripping body 22. A continuous stream of blanks 30 from the previous operation falls on the receiving roller table 1.

The front blank reaches the friction gripping member 22, pripddnimaet it, while the lever 13 is deflected at a certain angle around the axis 11, and the angle of inclination of the lever. 13, in the presence of a blank under the gripping body, must remain in the range of values determined by cutting. The workpiece, which has come under the gripping organ, is separated from subsequent workpieces by it, at the same time it presses on the latch 7 and the utapli-. vaet her. After passing the workpiece over the latch, the latter returns to its original position under the action of the spring 8. In this position, the workpiece acts on a sensor (not shown), which gives a command to move the pusher 5 to the left. The pusher 5 latch 7 pushes the workpiece in the working area of the press 29

 (figure 1). After the press is triggered, the pusher 5 returns to the extreme right position and the whole device is ready to receive the next blank.

five

$

25

FIG. 2

Slave star

dyS.1

(green)

OpSCfM (pOfft //}

0.36.2

Detail

X

Redr

ip.n.

Supportive

T goy body {14e / 7b)

Bedyoioff jSej ffi // fa

/ //// ///// 77

Fig.Z

Claims (1)

DEVICE FOR SUBMITTING LENGTH MATERIAL TO THE PROCESSING AREA, comprising supporting rollers mounted on the base with the help of axes for moving the material, a spring-loaded lever fixed at one end with an additional axis on the base and located at an angle o (to the feed plane, the feed roller fixed at the shaft at the free end of the lever and located above the support rollers, a drive shaft mounted coaxially with the additional axis ?, and a conversion mechanism connecting the drive shaft to the feed shaft roll, characterized in that, in order to increase the reliability and accuracy of the feed, the converting mechanism is made in the form of a chain transmission having sprockets mounted on the drive shaft and on the feed roll shaft, and a chain covering the sprockets, and the support rollers are freely mounted on the axles , and the lever is tilted to the feed plane in the direction opposite to the direction of material supply to the treatment zone at an angle oL determined from - Sih (сЛ - ~) ct ^ 'ckj * ctg ot-J>, Ji where are the diameters of the chain drive sprockets ;. _R F - center distance between sprockets; dp is the diameter of the feed roll; dp.ry. ~ diameter of support rollers; ' d _oc ~ diameter of the axis of the support roller; coefficient of sliding friction between the feed roller and the material; to - coefficient of friction of rolling material on the supporting role **! cam. >