SU28825A1 - Press for the manufacture of heat-concrete stones with internal channels closed at both ends - Google Patents

Description

The proposed press for the manufacture of heat-concrete stones with internal channels closed at both ends is of the type of presses, in which the forms form an endless chain and are applied to a rotary table with a punch pressing as its rollers pass through the elevation of the guides. The pressing of stones in the proposed press is carried out in two steps - general pressing and additional compaction during the formation of internal channels of stones. For these purposes, the pressing stamp consists of two separate, moving plates; of these, the upper one has holes for the passage of the pins of the lower plate, as well as the recesses and protrusions forming on the stone, respectively, protrusions and recesses, serving to close the internal channels, which are squeezed out by the said pins in the pressed stone. The opening of the channels in the stone is made using an auxiliary die moving together with a die — devices for pushing the stone out of the mold, and a fixed plate against which the protrusions of the shaped stone abutting, moving as the mold moves into the recesses of the base of the internal channels.

In FIG. 1 is a front view of the proposed press and FIG. 2- the same, above.

The main mechanism of fipecca is a tape consisting of forms connected by hinges. The tape rotates around two square drums 7 and 2, which are tightly mounted on the shafts 5 and located so that the edges of one shaft are shifted by angle к45 with respect to the edges of the other shaft. A toothed disk 5 is mounted on the shaft 3, which supports the ribbon during rotation around the shaft 3. Two disks are also mounted tightly on the shaft 4, upper b and lower 7, the distance between which is equal to the height of the forms. When moving around the shafts, the tape is supported by the disks 5 and 7, and when moving along the straight sections 1 and And it rests on the guides 8, which at the same time maintain the straightness of the sections between the rollers 9.

The whole process is as follows. In the first straight-line section / during the passage of forms through it, these forms are filled with mass from the hopper 10. When the form is further followed, they fall between the disks 5 and 7, where during the moving of the ribbon around the circumference, pressing occurs (from the length from A to B) . Next, the molds fall again into the linear section I, on which the stones are pushed out of the molds with a special stamp onto the belt underneath them. On this tape, boards are laid (one for every four stones), which, moving with stones one after the other, are received and placed in vertical rows of a chain of roller brackets. Then the Kellerovsk cart fits and removes five rows at once from the brackets, i.e. twenty stones, followed by stones into the chamber. Each b form is designed for two in the place of filling the forms from the buiker 10 under them there is a sheet of boiler iron. Located above the forms, the hopper 10 has a length equal to the length of the rectilinear portion I, and a width equal to the width of the shapes.

The pressing is done while the belt is moving, at the moment when one or another form passes along the semicircle from A to B, hanging around the shaft 4. The lower disk 7 has four holes, over each of which a stamp is placed; There are four stamps in total - //, / 2, 13, 14. Stamps are attached to the lower disk and are located around the circumference so that the center of each stamp coincides with the center of each form, when the latter rotates around the circle. When rotating along a semicircle from A to B, the top plate of each stamp corresponds to the hole of the lower disk and the forms. Each stamp, while rotating along the said semicircle, rolls along its inclined guides (5, 16, 77, / #) with its rollers and, lifting up a certain height and entry into the mold, thus pressing the mass. When the total pressing is finished, the chip on the profile of the circular guides begins to descend and by the time it approaches its axis to the axis AB from the end 5, it completely leaves the mold, and the form with the enclosing one. It is pressed into the rectilinear section II for ejection. Each stamp consists of two independent parts: the upper and lower plates. Upper

the plate has pins, in which two rollers 19 20 a are enclosed by rollers 21 and 22 at the ends and are provided with a cross section of the indicated voids, respectively, with holes 25 arranged in a staggered order in the amount of sixteen. .On each hole 23 on the surface of the plate, on the one hand there is a deepening 24, and on the other hand, a protrusion 25. The recesses 24 are intended to surround the stone when pressing the corresponding outlets that serve as a mass stock to fill the recesses formed by the projections 25 on the stove. The protrusions 25 widen the top of the voids in the stone, which are formed by the corresponding Screws of the bottom slab. The broadening of the upper part of the void in the stone is necessary for that. So that when these voids are sealed, only the upper part of them is sealed. The top plate of each stamp, having two rollers, rising from the movement of the rollers along the inclined upward guides, presses the stone, forming in it protrusions from the recesses 24 and recesses from the projections 25.

Stove under | is until its axis forms an angle of 60 ° with the axis AB; the plate goes further, crashing, being in shape and not changing its position, and at an angle of 160-180 ° it comes out of the form / and allows the form to move from a circular to a linear motion.

The bottom plate 26 with two rollers 27 and 28 bears iron pins 29, which are arranged respectively to the holes 23 and are intended to form voids in the stone. When the axis of the first plate forms an angle of 60 ° with the axis AB, the bottom plate, the rollers of which move — along its circular guides — begins to rise and the shafts 29 enter the compressed mass, forming channels and thus producing additional pressing. Squeezing the pins out of the mass is due to the fact that the rollers, when moving, push against the guides located over the rollers, and thus the second part of the stamp is lowered. When the pins 29 have been removed from the mass, the upper plate, having guide walls 30, which simultaneously move along the guides 31 on the lower disk, simultaneously begins to lower. The area of the Shtyl slab is slightly smaller than the area of the mold and has a slot in the middle of the bulkhead. The upper disc 5, as perceived by the pressure of the stamp, is made ribbed. The ejection of stones from the forms onto the tape is produced by an ejector tool ill. The latter is a stamp, a little smaller in area, articulated with a ratchet arm 52, which is attached to slider 33. From the latter there is a lever 34, which tightly holds the slider 33 with the stamp. The shaft 55 of the rocker arm at the end carries the rollers 5 (5, rolled in the appropriate direction; it is 57. When moving the device against the direction of movement of the molds, the rollers roll along the horizontal guide, and when moving together with the forms, the rollers first they are forced to roll along inclined guides downwards (the stamp pushes two stones at once from one form) and then upwards, as a result of which the stamp rises out of the mold. The device is fed to the place of pressing by the lever .39, which is hinged through the lever strain / vnoM. Lever 39 strengthened on shaft 41,. -which is in a vertical position and fixed to frame legs 42. On the same shaft there is a lever 43 which, when the gear disk 5 rotates, is hooked by its tooth 44 and rotates through a certain angle, this lever rotates the lever 5 thus, an ejector attachment in direction against the movement of the molds. There are four teeth 44 on the disk 5. As in one turn, the disk compresses four forms. Then the motion stops for the time that is necessary to advance the tape. Thereafter, the hooks 45, attached to the hinges 46 on the side of the punch, are hooked onto an ejector tool, which, due to this, moves together with the belt forward. When the stamp has to stop, the hooks provided with the protrusions 47 are removed by inclined strips 48u onto which the protrusions 47 push. To prevent a push during the initial movement, a spring 49 is provided, against which the slider 55 rests. When the hooks are removed from the spaces between the forms, the spring moves the device back, thus providing a relatively high initial speed; further movement is carried out with the help of levers 43 and tooth 44. The sealing of the upper parts of the voids is carried out as follows. Attached to the ejector attachment is an auxiliary die having in its upper part a shaft 50, on which rollers 57 are fastened, rolling along respective guide rails 55. The auxiliary die ejecting the stone brings the surface to the lower surface of the mold. The protrusions formed on the stone during the extrusion process abut against the embedding stationary plate 55, touching the lower surface of the forms, and under the action of the auxiliary stamp and belt movement (forms) the concrete mass of the protrusions is shifted in the direction k in the recesses in the stone specified mass. The finished stones are fed to the tape, moving under the forms at the same speed as the forms. They put boards on the tape, which will receive stones of four each. Upon further movement, each board enters the roller brackets 55, and, rolling along the rollers, is pushed first onto one bracket, then onto the other. Before the end of its movement, the board 54 pushes the hook 56, which holds the brackets, and the entire chain of brackets is lowered by one row. In this way, the boards are laid in vertical rows. When five rows of stones are formed, a Keller trolley removes them and takes them to the side. The entire press rests on a concrete foundation. Two I-beams, embedded in the foundation, serve as direct support for the understeples of the two main shafts. An iron frame with transverse fastenings runs along the length of the press. Since, during the pressing process, the entire system of parts on shaft 4 will tend to go up with the shaft,

The bearing of this shaft has a corresponding stop. The movement of the non-electric motor press gets through the transmission through the pulleys, and. Directly to the press through bevel gears. The belt pulley, located at the end of the press, is mounted on the cantilever part of the shaft 59 supported on bearings 60 and 67 and driven through the pulleys from shaft 62, which in turn receives movement through bevel gears from shaft 3.

The subject matter of the invention.

Claims (4)

1. A press for the manufacture of heat-concrete stones with internal channels closed at both ends, with the use of forms articulated in an endless chain and with a rotary pressing table, whose head presses compresses when its rollers pass through an elevated section of the guide. consists of two separately moving plates, of which the upper one is designed for general pressing, has holes 23 for the passage of the pins 29 of the bottom plate 26 and at each hole a recess 24 and a protrusion 25, the bottom plate 26, deducible in effect at the end of the upper pressing plate, and is designed for the extrusion pins 2P. channels in stone, accompanied by an additional seal of the latter. 2. In the press according to claim 1, the use of an ejector device consisting of a stamp, for longitudinal movement of which a gear disk 5 with teeth 44 serves to meet the mold movement, hooking the lever 43 of the shaft 4f carrying the lever 39, and for moving the stamp along The heights are designed for rolling, according to the respective type of guide, 37 rollers 36 on the shaft 35 of unequal arm 32, articulated with an ejector stamp. 3. In a press according to claims 1 and 2, application for sealing channel openings in stones, fixed plate 5 and an auxiliary stamp moving together: with ejector pusher and shaft 50 with rollers 57 rolling in guide rails 52 . 4.When the press on PP. 1-3, for transferring boards and ready-made stones lying on them from a conveyor belt to a Keller trolley, using brackets with rollers 55 and a hook 56, with an emphasis placed on it by the board 5 that frees the next brackets to the author P. P. Malov and A. E. Kremenitsky number 28§25 W:% Y