SU1672222A1 - Bulk material dispenser - Google Patents

Abstract

BACKGROUND OF THE INVENTION The invention relates to bulk dosing of bulk materials when they are fed to a mixing device for the preparation of quick setting mixtures. The purpose of the invention is to increase reliability when batching into a mixer for quick-hardening mixtures. The dosing material flows from the housing 1 through the dispensing slots of the disk 3 into the tray located below it, from which, with the disk 3 closed from above, the disk 3 is pushed by the spring-loaded piston 9 into the mixing device 22, with the end 29 of the piston 9 blocking the input window 24 of the tray, which prevents the mixed material into the cavity of the tray and the housing 1. The end face 29 is cleaned after mixing by the piston 25 when removing the mixture from the device 23. The synchronization of the operation of the disk 3 and the piston 9 is provided kinematically with the help of the ratchet wheel 6, obachki, lever 8 and the retainer. 4 il.

Description

one

(21) 4439569/10 (22) 03.05.88 (46) 23: 08.91. Bul №31 (72) A.N. Andreev

(53) 66.028 (088.8)

(56) USSR Copyright Certificate No. 443258, cl. G 01 F 13/00, 1972.

(54) BATCHER BULK MATERIALS

(57) The invention relates to bulk dosing of bulk materials when they are fed to a mixing device for the preparation of quick-hardening mixtures. The purpose of the invention is to increase reliability when batching into a mixer for quick-hardening mixtures. Dosing

the material flows from the housing 1 through the metering slots of the disk 3 into the tray located under them, from where the bridge 3 is pushed by the spring-loaded piston 9 into the mixing device 22, with the end 29 of the piston 9 blocking the input window 24 of the tray, which prevents the mixed material from entering the tray cavity and the housing 1. The end face 29 is cleaned after mixing by the piston 25 when removing the mixture from the device 23. The synchronization of the operation of the disk 3 and the piston 9 is provided kinematically with the help of the ratchet wheel 6, the pawl, lever 8 and lock. 4 il.

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The invention relates to means for volumetric dosing of bulk materials mainly with their supply to a mixing device for the preparation of quick-hardening mixtures and can be used in medicine for the preparation of a gypsum mixture, in construction and other industries.

The purpose of the invention is to increase reliability when batching into a mixer for high-speed mixtures.

Figure 1 shows in section the dispenser, a general view; Fig. 2 is a section A-A in Fig. 1, the moment of dispensing the dosed material from the metering slots into the tray; Fig. 3 is a view B of Fig. 1, the moment after the end of the piston supply of the dosed material to the mixer and after the mixing process; figure 4 - the same moment after

the end of mixing, the beginning of the movement of the piston to the right extreme position.

The dispenser includes a housing 1, a bottom 2 on which is placed a disk 3 with dispensing slots 4, a drive shaft 5, on one end of which a disk 3 is rigidly fixed, and on the other is a ratchet wheel 6, a tray 7 placed in the bottom 2 of housing 1. Between the ratchet wheel 6 and the bottom 2 have an L-shaped double-arm lever 8 rotatably mounted on the drive shaft 5. In the tray 7 there is an ejector piston 9 spring loaded 10. The piston 9 has a protrusion 11, and in the bottom of the tray 7 there is a groove 12 under the protrusion 11. To fix the piston 9 in a spring-loaded state at the bottom of the chute. and 7, a spring-loaded retainer 13 is installed.

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the shoulder has a bevel 15, and the end 16 of the other shoulder is placed on the outer side of the bottom of the tray 7. The latch 13 rotates on the axis 17. On the bottom wall of the piston 9, a hole 18 is made to set the end 14 of the latch 13. On the lever 8 a pawl 19 is inserted, which is included meshing with the ratchet wheel 6. On the ratchet wheel 6 on the surface facing the bottom 2, the protrusions 20 are made. The sockets 4 on the disk 3 are separated by bridges 21. The dispenser body 1 communicates with the chamber 22 of the mixing device 23, the loading window 24 and the tray 7. The mixing the device has a piston 25 for och sources of walls of chamber 22 and mixing body 26. The bent shoulder 27 of lever 8 has a surface 28. in contact with a protrusion 11 of piston 9. The end face 29 of piston 9 is made corresponding to the profile of the mixing chamber 22. A dose cutter 30 is installed in case 1.

The device works as follows.

The product comes from the housing (hopper) 1 to the metering slots 4 of the disk 3. The lever 8 is moved (manually or using some kind of reciprocating drive) from the position along arrow G (see Fig. 3) at a certain angle until the next engagement of the pawl 19 with a ratchet wheel 6 (see figure 4). With this movement of the lever 8, its bent end 27 by surface 28 contacts with the protrusion 11 and moves the piston 9 to the extreme right position, where it is fixed by the end 14 of the clamp 13 when the springs 10 are compressed. Next, the lever 8 moves in the opposite direction in arrow D. By moving the lever 8 through the ratchet wheel 6 and the drive shaft 5, the disk 3 with the sockets 4 also rotates by an arrow D at a predetermined angle, during which the dose of the product is cut off from the next socket 4 by the cutter 30. The passage above the open tray 7, the product under its own weight falls into the tray 7, and when the tray 7 is overlapped by a jumper 21 of the disk 3, at this moment the protrusion 20 of the ratchet wheel 6 presses on the end 16 of the retainer 13 and the other end 14 goes out of the hole 18 piston 9. The piston 9 under the action of the spring 10 moves to the left extreme position, and the dose of the product enters the mixing chamber 22 of the mixing device 23. The end 29 when the left extreme position of the piston 9 is in the plane of the inner surface of the mixing chamber 22. a mixing device 23 and, after mixing damper 31 is opened, ready mixture is removed and the piston 25 moves downward, clears the chamber wall 22 and mixer end 29 of the piston 9. The shutter 31 is closed and the cycle is repeated.

The application of the invention will allow mixing devices with fast-reacting loose components without the mix being mixed into the mixer loading window and the dosing tray, as a result of which the loading mixture and the tray do not need to be cleaned of the hardened mixture, which leads to an increase in the mixing efficiency.

Claims (1)

DETAILED DESCRIPTION OF THE INVENTION A bulk material dispenser comprising a housing with a window for unloading in the bottom, above which a disk with metering holes and a slam-shutter are successively mounted on the drive shaft in the housing, characterized in that, in order to improve reliability when batching into a mixer for fast setting mixtures an ejector assembly is introduced, made in the form of a tray with a spring-loaded piston and its retainer, a ratchet wheel with a dog and an L-shaped two-arm, and the tray with the piston is radially mounted under the window for you loads, and under the tray on the drive shaft, the L-shaped double-arm lever and the ratchet wheel are rigidly mounted for rotation and the ratchet wheel is rigidly on its upper surface; the piston is made with a recess in the lower part and a protrusion under which The latch is made in the form of a spring-loaded two-armed lever and is installed in the bottom of the tray with the ability to interact with one end with a recess in the piston and the other with protrusions on the ratchet wheel, while the bent shoulder of the L-shaped two-sided what the lever is installed with contact with the protrusion of the piston, and on the second shoulder of his dog. ABOUT l T // 9 and 28 k 20 rfSzES I j V Y / y / FIG. I l