SU59642A1 - Press for making artificial stones - Google Patents

Description

Presses for the manufacture of artificial stones are already known, in which a mold is applied, movable in the direction of extrusion and equipped with a movable bottom.

The press proposed by the present invention relates to presses of a similar kind, but differs from them by the original design of the form movement apparatus. This device consists of levers mounted on the station of a press, turning in a vertical plane. The ends of these levers are provided with rollers and are located between the shoulders and edges of the mold in such a way that when the downward moving punch is applied to one of the rollers (extreme), the levers turn with other internal rollers moving the shape. The second feature of the press is a movable hook, connected through a swinging baroi system. The latter is driven by a fist mounted on the press drive shaft. In a certain position, the hook engages the mold and moves it further down after the inner rollers have already moved away from the mold and the pressing has been completed. At the same time, the molded stone is pushed out of the mold by a movable bottom.

In FIG. 1 is a general view of a press; FIG. 2 - side view; FIG. 3 is a plan view; FIG. 4 is a side view of a mold for pressing stones; FIG. 5 - her plan view; FIG. 6, 7, 8 - different stages of pressing .I

The material (solution) for molding artificial stones is fed into the hopper 1a, a dosing unit that fits the form 15 to be filled. Portion scales are located between the bunker and the form.

Lever 1 is hanging on the fixed channel of the bunker. The prong of this lever, by means of a coil spring, enters the dog 3 fixed on the movable measuring device 2 at the moment when the measuring device 2, having taken a weighed dose of solution, drops down. This is done so that in the process of emptying the measuring device 2, it again does not lift up and does not cause premature opening of the valve 4 of the bunker 1a. This valve can be opened to release the next batch of solution only after the gauge is completely empty, i.e., after the three-pointed lever 5, having turned (e) the hinge (c) with its end, opens the gauge door (d) and releases all the measuring gauge form.

The process of completing the form takes place with the "One," the image. Mounted on the vibrating conveyor 10, the form 15, moving to the right in the drawing (Fig. 1), with its front end comes to the roller end of the lever 5 and begins to fill with solution. Moving forward and completing the charge, the form releases the lever 5, its end (e) under the action of the load (g) goes down, its other end (and) presses the lever 1, releases the dog 3, and the empty measuring tube under the action of the load 6 rises and becomes its upper palazheniya, ready to receive the next portion of the solution. At this moment, the roller 7 from position 7 rolls along the balance beam to the position 7 - and, touching the end of the lever 8, opens the catch 4 of the bunker.

FIG. Figure 1 shows the position at the end of the arrival of a portion of the solution from the bunker to meriak 2, when roller 7 begins to roll back from position 7 to position 7 and on the way must press lever 8 and close door 4.

Form 15, which previously rolled on its rollers along oblique directions 9, when approaching the bunker, become on rollers of an inclined gravitational conveyor 10, which pushes it further and places it under the bunker.

The part of the conveyor 10, which comes under the bunker, is cut off from the conveyor and is a table, to the bottom plane of which vibrators 10 a are attached.

A PS arrives at this vibration table, located slightly above the mark of the initial roller of the conveyor 10, the form rises and separates from the track 9. Moving around this table, the form is subjected to vibration while taking the solution. This achieves a uniform distribution of the solution and some condensation of it between the MI in the form of a pin. In addition, due to the contact between the form and the measuring device 2, the vibration also extends to the latter, as a result of which it is empty.

The drive part of the press (fittings 1 and 2) consists of a single electric motor, which, via a worm gear and a set of paired gear wheels, via a two-shaft shaft and connecting rods, informs the slide 11 to move up and down along the length of the shaft. The punch 12 is screwed to the slider II.

The form (fig. 4, 5) is made in the form of a solid steel steel drawer (), to the bottom of which a steel plate is screwed (n). Steel pins (w) are screwed into this plate. A steel movable plate (in) is loosely nested inside the crate (). In the latter there are holes that allow it to be inserted into the box by passing through; 1 pins (w).

This plate is supported by a group of steel support posts (c), which are fixed with their lower ends on support chair 13 (Figs. 1 and 2).

Thus, the support chair 13, through the supports (c), takes over all the pressure of the press.

The filled form leaves the vibrating table and, due to the slope of the conveyor, is again suspended from the guides 9 and moves to the press until the doggie 14, upon meeting the form, rises, skips it forward, and snapping its tip down into the recess, made in the back of the upper frame of the form.

This position is occupied by form 15 regardless of the stage in which it is pressed before ethyl 16, since under all conditions it will be captured by the dog 14 and will take its place.

FIG. Figure 1 shows the position when the pressed mold 16 went down, leaving the pressed die 17 on the plate (VP) (Fig. 4). At this moment, the roller cam 19 mounted on the main gear wheel, moves in the direction of the arrow, presses the end (k) of the system of levers 20, by means of which the frame 21 (Fig. 1) moves to the right- side, as a result of which the ends of the plate 22 fixed on this frame abut to the edge of the backing sheet (pl) and, pushing through the pressed stone, put it on the conveyor (Fig. 2). Passing the end (k) of the lever, the cam 19 releases the system of levers 20, which by the action of the coil spring (pr) (Fig. 1) come to their original position.

Following this, the fist 23 fixed on the other side of the wheel disk, which had previously kept the vertical rod 24 in the depressed state, descends from the end of the latter and enables it under the action of the spring 25 to LIFT up, carrying along a system of levers 26, 27. Moving hook 28, the lower end of which is hinged to this system of levers, and the upper end holding the edge of the mold, also rises. At the same time, due to the thickening at the lower end of the hook 28 and the roller 28a, it deflects to the right and releases the form 16, which under the action of the weights 29, with the help of the brushes 30 and the gear racks 31 constituting the continuation of the supports 18 supporting the shape, rises up and becomes next to the form 15; however, the support 18 fills in the breakthrough in the guides 9 and restores the through track. At this point, the roller cam 19 reaches the end of the other system. The arms 32, which move the frame 33 to the right and, acting by the dogs 14 on the form 15, substitute it under the press; at the same time, a standing empty form 16 is pushed up in front of this and next, pushed along the guides to the right and sent for filling.

Pa figs. 6 shows the position of the form 15 at the time of its supply under the press, when it is still hanging on the rails and when the inner plate (vp) has not yet lowered and sat down on the support posts (c).

Pa figs. 7 shows the moment when the punch 12 has already waxed into the mold and when the inner plate (v) is already sitting on the racks (c). This moment is the start of pressing the mass in the mold.

The levers 34, swinging on the supports (c) (Fig. 6), are helical springs, and are pulled toward the press slider 11.

FIG. 8 these levers are pushed down so that they are on

their rollers (a) rest in the plane of the lower face of the slider AND, and the rollers (b) have already pressed the edge of the form. As the punch is lowered, i.e. as it is pressed, these rollers continue to fall down, scrolling along the slider's planes and shape, but since the distances from the centers of the rollers (a) and (b) to the points of rotation (c) of the levers 34 have different values, then the speed of downward movement of the rollers (b) is greater than the speed of movement of the rollers (a), in other words, at a known speed of downward movement of the punch, the form will move downward somewhat faster.

Pa figs. 8 shows the position when the pressing process is completed and when the punch 11, approaching its extreme lower (dead) point, should already begin to rise. Obviously, therefore, under these conditions, the levers 34 with rollers (a) and (b) will no longer be able to continue to put pressure on the form and remove the pressed stone from it.

At this moment, the fists 23, which are located in the hem, come to work, when about "and meet the rollers (p) mounted on the rods 24.

Upon further movement of the fists 23, one of the shtags 24, continuing to descend, using the aforementioned system of levers 26, 27 t, is not down for the hook 28, which at that time, being in the upper position set aside, thanks to the spring (pr), Its protrusion enters the recess of the mold, grabs its lower flange and does not form down, leaving the finished stone on the inner plate (v) and on the backing plate (nn). In this case, since the form with its rollers sits on the supports 18, which constitute the continuation of the toothed racks 31, the latter act on the gears 30 and thus raise up the ruz 29 and set it in its original position.

This completes the full cycle of one revolution of the crankshaft, after which the roller cam 19 again comes to an end (k) of the system of levers 20, which removes the stone that has been released from the ready-made form and places it on the conveyor in the manner described above and the cycle repeats again.

The subject matter of the invention.

Claims (5)

1. A press for making concentric stones using a mold that is movable in the direction of extrusion and equipped with a movable bottom, characterized in that to move the mold on the press frame, the arms 34 are rotatable in the vertical plane and located at the ends provided with rollers (a) and (b), between the shoulders of the punch and the edges of the form so that, when exposed to the punch moving down the rollers (a), the levers rotate with the rollers (b) moving the form. 2. The press according to claim 1, is different because, in order to further move the mold, upon pressing and extruding while moving the bottom of the molded stone, a movable hook 28 is used, linked to the tool. 7 A system of oscillating levers with a rod 24 driven by a fist mounted on the drive shaft of the press. 3. In the press on PP. 1 and 2, in order to return the mold to its original position, the slats 31, provided with a support 18 for the mold and interacting with the crustaceans 30 affected by the weights 29. 4. In the press of claim 1, use of a loading device, comprising in it for measuring the amount of material supplied into the form of the material batch scales, on the yoke of which the rolling roller 7 is installed, which interacts with the bunker control lever 8. 5. In the press according to claim 1, use a gravity conveyor in the form of inclined guides 9 for the form, the areas of which located under the loading device are made in the form of a roller table equipped with vibrators for pre-compaction of the material fed into the form before pressing. fng.in ljl 34 with with O5 -. cq n o  F n f h: h m o t m o 0h o n and Sat d 4 /