SU30601A1 - Friction Screw Press with Rotary Table - Google Patents

Description

For pressing bricks and other / products from chamotte mass, screw presses with a rotary press are used on the balls of the table, on which the molds are mounted. In the proposed press, related to the specified type of presses, to push the mold out upwards, the pusher is provided with a roller slider, which is gripped by a fork, jointed with two ends, connected with a vertical thrust, which moves downward when the press screw is lowered .

In FIG. 1 shows a front view of a press with a partial cut; FIG. 2 is a section along the explosive in FIG. one; FIG. 3- view of the turning mechanism from above; FIG. 4- view of the press from above (left part) and view of the rotary molding table from above; FIG. 5-view of the form for stamping bricks on top; FIG. 6 is a vertical section of it; FIG. 7 is a bottom view of the mold in the front; and FIG. 8-top view of it.

In the frame b, a vertical pressing screw 7 is installed, the lower end is fastened to the slider 9, moving in vertical guides 7 / and carrying the bottom punch 12. The latter is directed when pressing the fixed cross member 77 into

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rotary table 20, a mold 13 provided with a movable bottom 14, Rotary table 20 with four forms J3 is placed on balls / in stationary mud 27 (Fig. 2 and 4), under which is a mechanism for pushing out the pressed product and turning the table. The pushing out of the pressed product from the mold is made by the pusher 30 with the screw 7 going down.

Screw 7 bracket 22 on the slide. 9 (Fig. 2) transmits the movement of a vertically located pipe 23, which passes through the opening of the plate 2 /; lying on the main frame 24 (Fig. 3); Inside the latter is a mechanism for turning the table and pushing the brick out. T he 23 is associated with a two-arm lever 25, the axis of rotation of which is placed on support 26 (Fig. 2 and 3). The opposite end of the lever 25 goes up together with the articulated fork 27 moving away from it, which grips the 2iS roller rotating on the axis of the slider 29. The latter is fixed on the pusher 30 by a pressure screw 31. Thus, the pusher, received movement from the lever 25, passes through the hole in plate and table 20, hits the movable bottom of the mold 33 and pulls out the product until the fork 27 stops the roller 28, which is due to the increase in distance from the axis of rotation of the lever 25 to the point of contact of the fork with the rollers, after which t lkach 0 goes down, the spring 34 pulls.

To bring up the punch 12 of the next fdrma 13 table. 20 rotates .90 ° during lifting, screw 7; at the same time, the lugs of the exit of the punches 72 from the mold ha 23 transmits movement to the lever 85, which carries the tooth to rotate the ratchet wheel 36. The latter is wedged on the shaft 37 (Fig. 3), on which a large gear 38 of the bevel gear is also mounted, engaging with a small bevel gear 59, stuck on a vertical shaft 40 (Fig. 2), implying the rotation of the table 20 90 °. When punch 12 goes out of shape / 5, lever 55. (FIG. 3) is in relaxed mode. This is achieved thanks to the slot 41 in the round 25. The slot length is adjusted by means of the slide bar 42, which is fixed to the twin bolts.

During the raising of the screw 7 upwardly, the fork 27, thanks to a special hinge, falls below the rollers 28. With the next course of the screw downward, the lever 55 is lowered to the initial position (the moment the table starts to turn); further stop lever prevents stop 43 (Fig. 3).

Automatic sequential off and on the friction discs 5 in the work is as follows. In the extreme positions of the screw 7, the slider 9 presses the fist 44 mounted on t 4b with the help of the thrust screw 46 (Fig. 1). The fist pulls the hook, turning the roller 47 by the lever 48. The roller 47 rotates the fork 49, which is articulated by means of the rod 56 with the second fork 49, so that when one disk is turned off, the other is turned off. To obtain proper friction between discs 2 and 5, counterweight 50 serves.

For pressing the bricks, the corresponding shapes and punches are placed, the screw stroke is adjusted by moving the cam 44, the slit length is changed in draft 25 and the position of the slider on the pusher 30 is changed.

The movement of the working pulleys / located on the left and right side of the friction disk 2 (Fig. 2) is communicated via a belt transmission from the transmission. A separate pulley together with the disk 5 is mounted on the sleeve 5 and rotates on the fixedly mounted shaft 10. Together with the horizontal disk the sleeve 4 rotates on ball bearings supporting the vertical movement of the vertical pressing screw 7 (Fig. 1).

The subject of the image, the shadows.

A friction screw press with a rotary table on balls carrying a form, different in feM, that to push the manufactured product while lowering the screw 7, pressing the next section, a lever 25 is used, one arm coupled to the slot of the rod 25, the other with a fork 27, the gripping roller 28 on the axis of the slider 29, secured by the pusher 30 pulled off by the spring.

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