DE1980147U - DOSING AND MIXING DEVICE FOR THE PRODUCTION OF BUILDING MATERIALS. - Google Patents

Description

RA. 725 93 2 * 12/21/6?

10 170 Λ

ELBA-WERK

Ettlinger Baumaschinen * und Hebezeugfabrik GmbH. Ettlingen / Baden

Dosing * and mixing device for the production of building materials

The invention relates to a metering o * and mixing device for the production of concrete. Like. _F particularly in conjunction with an elevator mixer.

In the production of concrete and other building material mixtures consists the problem of putting together individual batches of mixes « the dosing, the allocation of the dosed batch to the mixes mixing and dispensing the finished mixture from the mixer to conveyors or means of transport,

Ever since the so-called elevator mixers were introduced, this has been possible Single problem of mixing and delivering the finished mixture be considered resolved. It is well known that the elevator mixer is 1

'■ "· ■■ -2-

the elevator running in an elevator track and operated by a cable pull * container equipped with a mixer and at the same time as a mixer * container trained. As a result of the fact that the elevator mixers have a particularly powerful compulsory mixer which, during the Elevator process is operated, and in that this mixer can be tilted overhead to transfer the finished mixture, Mixing * and transfer times can be achieved that are hardly possible are undercut.

In order to make this advantage of the elevator mixer fully usable in practical use, there are also suggestions for improvement of the dosing and dispensing process for compiling and transferring the mixed batch made. A dosing device is known * with a cylindrical drum as the dosing container with a horizontal central axis and a filling opening is used, wherein the drum runs in a guideway designed as an elevator track, which is suspended with a horizontal pivot axis in a weighing beam. In the guideway, the drum runs from a lower filling position while simultaneously rotating around its central axis into an upper emptying position and is moved by a cable. This metering device has proven itself in practice, especially in

Connection with elevator smiacherti, quickly established and very good |

proven. j

The object of the present invention is to build on the experience obtained with the known device, a simplified one

To create dosing and mixing devices, especially in smaller Systems with lower performance, preferably in connection with elevator mishers, can be used economically.

This object was achieved according to the invention in that in a Dosler * and mixing device with an elevator mixer and a from a lower filling position to an upper emptying position by means of Both the dosing tank movable in a guideway and the cable pull Dosing container as well as the elevator mixer for moving out of their lower filling position are connected to their upper emptying position by a single rope, and a single rope to drive the rope Winch is provided. V

The common rope runs in one go from a drive winch via a pulley provided on the dosing container further to one Deflection roller in the upper part of the mixer frame and from there to one Fixed point on the elevator mixer. The dosing tank runs in his lower filling position on the weighing beam of a scale, so that in in this position the feed of the individual components of the mix * batch and its weighing can take place. In its lower filling position if the dosing container is locked firmly with its guideway bar. This allows during the dosing process, i.e. during the Composition of the mix batch, when the drive

.4

wind the elevator mixer out of its lower position, in which it last mixed batch has taken over «up to the position run «in which he delivers the finished mixture. In the locking position the pulley on the dosing container then only serves to guide the rope "as long as the elevator mixer is running up" and down.

The control of the cable winch for the entire sequence of movements of the dosing container and the elevator mixer is done automatically via Limit switches and delay relays «those in the guide track of the Dosler container and in the elevator track of the mixer in the lower one and upper endpoints are arranged.

The device according to the invention enables, in the simplest possible way, with only one drive motor and one cable pull, the joint actuation of a dosing container and an elevator mixer in such a way that practically an uninterrupted work cycle can take place. During the opening of the mixer, the transfer of the finished mixture and the return of the mixer to its lower position, i.e. while the metering container is locked in its filling division, the next batch of mix _{fl is} compiled and controlled by the scales. * to ^ »» w «taiw» * eggagagtot ^

The invention is described below with reference to the drawing, which is designated as Aue * Example of a dosing and mixing device in echematic Illustration shows, explains «

In the elevator track 1, the elevator mixer 2 runs on rollers 3, 4 from its lower position I " in which it takes over the respective, fully dosed batch of mixed material, to the upper transfer point II, in which it delivers the finished mixture. The guide track 5, in which the metering container 8 can be moved on rollers 6, 7 from a lower filling position to an upper emptying position IV, lies approximately parallel to the mixer elevator track. Both the dosing container 8 and the elevator mixer 2 are jointly connected by the cable 9 which is actuated by the single drive winch 10. For this purpose, the rope 9, coming from the winch 10, runs over a pulley 11 located on the dosing container 8, from there over a further pulley 12, which is arranged in the upper part 13 of the mixer frame 14, to the fixed point 16 on the elevator mixer 2 .

In its lower filling position III, the metering container 8 is seated in stock 16 of the beam 17 of a balance, which is with Transmission elements 18 acts on the display device 19. The J

■ j The mobile frame of the dosing container 8 can be in the lower filling position [

• ■ "''

III via the lever 20 and the claw 21 fixed to the guide track i

5 can be locked. To control the movement sequence of dosing and lift mixer serve limit or delay relays, which allow an automatic operation of the entire dosing, mixing · and handover process, * So is the locking lever 20 of the switch 22 "sets the winch 10 in transition. The upward movement of the metering container 8 is ended via the limit switch 23 on the guide track 5 and the downward movement of the dosing container 8 via the limit switch 24. The switch 25 at the transfer point of the elevator mixer in turn controls the reversal of the direction of rotation of the winch 10 ₉ and the limit switch 26 at the lower end of the elevator track switches it off.

The device according to the invention works as follows: After a batch of mixed goods is finished in the position ΠΙ in the Dosing container 8 has been weighed in, lever 20 is actuated and by lifting the claw 21 the locking of the dosing container 8 solved with the guideway 8. The Counter. 22 switched on the winch 10, which now begins to wind up the rope 9 j. The dosing tank moves in its guideway ( 5 up «until it reaches its upper position IV and over the '

Limit switch 23 switches off the cable winch. At this moment it takes place '

the transfer of the batch of mixed material from the dosing container 8 to the j Elevator mixer 2, which is in its lower filling position I. and its mixer is already running. After connecting-;

■ f

- 7 - ■

the automatic retraction of the dosing tank from its upper position IV into its lower position III and into the storage

set 16 of the balance beam 17 and after locking with the guide track 5, the winch 10 is switched over again via the switch 24. The deflection roller 11 on the dosing container 8 now serves as a fixed rope deflection point and the elevator mixer moves Wmtoaapp ^ amOmmtomtesiuglmfrBXiB from its lower position I to its upper position II. The winch 10 is stopped by the switch 25 and switched to the opposite direction of rotation via an Eelais after the mixer has been emptied. The elevator mixer runs back to its lower position I and there causes the final switch-off of the winch 10 via the limit switch 26. Meanwhile, a new batch of mix has been weighed into the dosing container 8 via the scales 17, 18. By unlocking the dosing container via the lever 20, 21 or by an impulse from the scales, a new work cycle can begin,

26.8,65

•8th-

Claims (4)

RA. 725 932 * 21 « Protection claims: 1 »Dosing and mixing device for the production of concrete or the like, in particular in connection with an elevator mixer and a dosing container which can be moved from a lower filling position to an upper emptying position by means of a cable in a guide track s« characterized «in that both the dosing container (8) and the elevator mixer (2) for moving from its lower filling position (I, HI) to its upper emptying position (U, IV) are jointly connected by a single rope (9) and a single winch (10 ) is provided. 2. Dosing «and mixing device according to claim 1, characterized in that« that the common rope (9) in one go from the drive winch (10) Via a pulley (11) provided on the dosing container to a pulley (12) in the upper part of the mixer frame (14) and from there runs to the elevator mixer (2). 3. Dosing and mixing device according to claims 1 and Z, characterized marked «that the dosing container (8) in its lower filling« position (IH) - runs onto the weighing beam (17) of a scale. -9- -0- 4. Dosing and mixing device according to: Claims 1 to 3, characterized in that characterized «that the dosing container (8) during the elevator process of the elevator misseher (2) in its lower filling position (JH) firmly lockable with its guide track (5) 1st. 5 «Dosing and mixing device according to claims 1 to 4, characterized in that the control of the cable winch (10) for the entire sequence of movements of the dosing container and the elevator smelter is via limit switches or delay relays which are located in the guideway (5)
of the dosing container and are arranged in the elevator track (1) of the mixer «takes place automatically. 10 170
26.8.65