DE2034837C3 - Device for the discontinuous production of mixtures of fine to coarse-grained bulk materials - Google Patents

Description

^e "il. Device according to claim 9 or i 0, characterized in that the mixing container (3) is provided with diabolo-shaped rollers (16) which serve as a support and chassis and which are supported by the horizontal hooks (15) of the hanger (14) are subject to.,. ...,

1 ? Device according to one of Claims 1 to Tl characterized in that screw conveyors (D are provided as metering devices, which together with their bulk goods feeder (2) with quick connections (18) can be detached from the Support plate (7) are held.

13 Apparatus according to claim 12, characterized in that at the outlet of the screw conveyor (1) flaps (31) are provided, the are kept open by the product flow and via a spring element, an electrical, hydraulic or pneumatic actuator (32) or by its own gravity in the closed position are guidable. ..,

14. Device according to one of claims 1 to 13, characterized in that the mixing container (3) has a bottom flap (24) with electrical, pneumatic or hydraulic Actuators (27) can be moved into the open and closed positions.

15. Device according to one of claims 1 to 14. characterized in that both between an inlet funnel (28) of the processing machine and the mixing container (3) as well as between the upper edge of the mixing container (3) and the carrier plate (7) a flexible Intermediate member (29 or 30) is provided.

The invention relates to an apparatus for the discontinuous production of mixtures From fine to coarse-grained bulk materials for direct feeding of extruders or other processing machines. consisting of a weighing device, which uses Dosicrapparate to mix the Individual components are supplied one after the other and these components are added one after the other gra \ imetrically recorded additively, as well as a mixing device for the individual components.

There are devices known which consist of one or more scales over which to individual components belonging to a mixture are weighed and then placed in a mixing container will.

Weighing devices are also known which are specially designed for charging mixing devices are designed and which record several components additively or as individual weighing one after the other and in transmitted to a downstream mixer.

In addition, mixing devices for the detection of small mixes, such. B. can be used for Coloring in upstream processing machines known, their coarse or large components can be detected purely volumetrically or via a time-dependent dosage, so that the additional components can also be allocated via time-dependent or speed-controlled dosing devices. With all

Some known devices of the type described above, be it that they work on a gravimetric or volumetric basis, are followed by additional mixing devices which take on the actual mixing or homogenization process. As mixing devices are z. B. from the clear, that of
Honing required
kens of ^

5 and

h erne. ^

i in d ^ transmission

from

Target

1 557 210 known, as a closing element of För- takes place the M ^

the pipes to provide flap-like elements and the serving ^ tschalc ™,

between two mutually movable parts of the invention is to £ ™ gj "" · _theft.

Incorporate mixer flexible links. Dar mower drive and M.sdmerksw «e

In addition, especially from the last-mentioned » ₅ tn coupling« ^ ™ ^ * ^ " _ge nn _a se with their

SÄSe

direct loading of extruders or other processing

processing machines are very expensive, so that

follow a direct loading of the processing machines

China often fails for economic reasons.

A major disadvantage of the devices described above is that a Cleaning the entire device is unavoidable when changing products. because due to the Product type and in the various dosing, weighing and volumetric devices and their Auxiliary facilities such as filling line or the like. Existing surfaces reduce the risk of adhesion for the formation of Residue is very large. The cleaning process is time consuming and costly and compromised therefore the economy and the applicability of such devices are considerable.

The task of the V.rfindune is therefore to create a device designed as a small unit for the direct loading of extruders or other processing machines, in which finely to coarse-grained bulk goods are gravimetrically released one after the other, mixed and one or more drives or processing machines in short paths are fed to the H-lfseinrichtungen at> roduc _t, cchsel easily removable and rei - "':;? L ^ ung this task." rd crPndungsgemaB an apparatus of the aforementioned type xorgeschlagen, which is characterized in that the load bowl of Abwägevorrichtung serves as a mixing container of the mixing device, in which a mixing mechanism-Lug is arranged which also serves as a clearing tool, which during the mixing phase is positively coupled to a drive attached to a stationary carrier plate and that the mixing container is rigidly connected to the carrier plate during the mixing phase .

In a further embodiment of the invention, forner suggested to use one as weighing device

the G

tes emptying the ^
Invention further ahead. that
the emptying phase in ^
w, e during the NI.schphasc
same direction ^u ? ^^

Mixing in dei-c

emptying from the as Mi ^ hbehaltcr

hh

Around

watch ^

J "Em-

water-

ICCiUIiL; am vj * _i «... ......

shell in the other direction of rotation is inventive

according to the mixing blades S-f "'"

Faces are opposite the
The mixing tank of the
direction is to
finding of h: ike
at whose hi ^ cn the
the diaboloförnge im. ·· ».... ~~ - -

are attached. The hook-shaped pendants find their continuation upwards according to the invention in an electrical, pneumatic or hydraulic actuator.

In a further embodiment of the invention are

Conical Arrctierelcmente are provided above the hooks of the hangers, which during the mixing phase in corresponding recesses of a carrier, in particular ^{the c ör-}

facilities
l _ei CHT re.n.gen

before that ^

rem ^school ^ ^
b.ndungen «-bar

At the end uci t ■ ^d
xve.teren ^ cdankenJ
hen d, e jom
and about a

Usc. ^

A ^Ί f

1'

with quick behaviors are after one provided electrical, pncuma through the over

Mixing container is a flap in front of a preferred Ausfülirungs

high display and transmission rates having equal arm balance that

it through

Jichnet. that both between a

Intermediate member is provided.

Using the figures shown in the drawings the invention is operated in more detail on an execution game in the following. It «*

Fig. 1 is a front view of the invention

Ben device according to the invention

F i g. 2 is a side view of the invention

Contraption, . _d

3 shows a section along the line III 111 of

^{F [ g} - ", ο · κ α * er F i ρ 1 in enlarged Fig. 4 the area A of Fig.l in enlarged

Depiction,

Fi g. 5 the area B of FIG

As sponsor accommodation and
and to g ^ S

Quick connections 18 detachable on the carrier plate 5 ^ ™ ^erDina . | _{3) To} ^ _Prödrikt the held Js J ι gj _and ^ _{to change} .

k ^ I ^ "consoles 19 of the drive motors 20, ^^^ _{t a, s seesaw} formed. As to particular from Figure 3 it can be seen, the _{console 19 at their} cr one side a resilient _{d scri} arnierartiges intermediate member 22 on the oo _{ue? the} ^B _device attached while

the other end of the console 19 via a quick _{yerschluß 23 on the} ^^ lath 7 is held.

The load tray serving as the mixing container 3 is provided at _{its bottom 12} with an emptying flap 24 which is supported by a flexible element 25 so that it is sealed during infestation and mixing

Sr ^ 26 is the flap 24 with

Mixing container 3 engages « ⁿ Μ ¹ ^^^, ^ 3 closed position can be transferred. Between the inlet of the drive ₅ b6 ^^^ Ά ^ Ί ^^^ « ^{funnel 28 of the} processing, -separated and stationary ^ T ™ ^ ¹ « " ⁷ processing machine and the mixing container 3 is a flcxi-AIs Abwagevorchmng4 the ^ one 8 "« * «™ J _ble J _{intermediate link 29 (} , _B. Cuff made of Perloj beam balance. The target weight β una _{k fabric)} provided. A similar intermediate link 30

aSTii'ütfet: ÄÄÄ ^ i- fst between the upper edge of the Mischbehähers3 drive 6 i »uöer a 1 ^ ¹ ^; ^ _{hare verbun} . _{30 and} the support plate 7 is provided,

Scherwerswelle ¹⁰ ~ ^ ™ "Abwäeephase At the outlet of the screw conveyor 1 there are flaps 31

η ⁶ " ^(S · blfmdeniich dJ opposite ' £ H ^ L · - provided, those of the product flow or special against it, the opposite actuators 32 _{are movable} . _{The actuators 32}

len inclined ™ Wauen9eJ «·« tu _Mi ^ _flü . _{are designed} as hooks 33 at their point of application

⁸ SRfS ^ near ^ em bottom f ^ S _{M i »dibehalteis3 35} det, so that the flaps 31 close when changing products.

£ the 4cr ^ eSene 10 attached. The mixer together with the screw conveyors 1 and hoppers 2

10 11 itself can be removed as a unit during the mixing phase ^

ί; Schlr direction as during the development The advantage that comes with the inventive V or-

S ^ S ^ rtnd the mixed phase direction is achieved is that with each other

Mixing of the individual mixers 40 the far-grain to coarse-grained shoes to be mixed

to Ξ and at the same time while goods are properly weighed and mixed

eSiS) S? be able to ensure complete emptying, whereby the use of a glcchar-

StSrJn S £ V Nfischflügel 11 approximately S-shaped shaped beam balance with switchable target weights

au gSe UNJ Ξ surfaces 13 are opneiet over the required especially in color mixtures Abwäge- a VL ^ A 12 * accuracy is achieved. 5 It is also advantageous to use last

The degree of safety hold> 3 is hook-shaped through the conveyor devices when changing products

carrying the hooks 15 underlie the simple structural design without major

Formiee rollers 16, which can be removed and cleaned at the mixing point.

ha £ r 3 StigS and at the same time as a support and furthermore is with the front according to the invention Undercarriage servesn The hangers 14 find upwards 50 assured that the to be weighed and to rm

their continuation on actuators 17, which on the frame-seeing bulk goods on the shortest path m the

are attached. Above the rollers 16 downstream processing machines, e.g. B. fcx-

there are conical locking elements 35 that truder, get.

For this purpose 2 sheets of drawings

Claims (10)

Patent claims: 1. Device for discontinuous production of mixtures of fine to coarse-grained bulk materials for direct loading of Extruders or other processing machines, consisting of a weighing device, the The individual components to be mixed are fed in one after the other via dosing devices and the additive gravimetrically these components one after the other, as well as a mixing device for the individual components, characterized in that the load tray of the The weighing device (4) serves as a mixing container (3) of the mixing device, in which a simultaneously is arranged as a clearing tool serving mixing tool (11), which during the mixing phase positively coupled to a drive (6) attached to a stationary support plate (7) is, and that the mixing container is rigidly connected to the carrier plate during the mixing phase is. 2. Device according to claim 1, characterized in that »5 indicates that the weighing device (4) an equal arm balance is used. 3. Device according to claim 2, characterized in that that the target weights (8, 8 a) of the beam balance are additively ziischallbar. 4. Device according to claims 2 or 3, dv.ui.rcli characterized in that the target weight c (8. 8fl) can be moved on levers mounted in cutting edges are arranged. 5. Device according to one of claims 1 to 4, characterized in that as a coupling A claw coupling (9) is provided between the mixer drive (6) and the mixer shaft (10) is that inclined during the mixing phase and inclined during the weighing phase Claws (9 ″) disengaged in a force-free and non-contact position with respect to the weighing device is. 6. Device according to one of claims 1 to 5, characterized in that as a mixing tool (II) a mixing paddle is provided. which near the bottom (12) of the mixing container (3) is attached to the mixer shaft (10). 7. Device according to one of claims 1 to 6, characterized in that the mixer (10.11) during the emptying phase in reverse direction of rotation runs as during the mixing phase. 8. Device according to one of claims 1 to 7, characterized in that the mixing tool (11) is approximately S-shaped and its surfaces (13) opposite the bottom surface of the mixing container (3) are inclined. 9. Device according to one of claims 1 to S. characterized in that the mixing container (3) is carried by hook-shaped hangers (14). which upwards its continuation in electrical, pneumatic or hydraulic actuators (17) linden. 10. The device according to claim 9, characterized in that that conical locking elements (35) are provided on the hangers (14), the corresponding during the mixing phase Recesses (36) of the carrier plate (7)