DE1683959C - Method and device for controlling the metering of the pressed material - Google Patents

Description

· * ⁴

Simplified in more detail in FIG

speed of the fixed gesture during the pre-compaction- Fig. 2 shows a contrary

th compressibility of the pressed material takes place. Contraption. a storage container 1

In this way it is achieved that with each one too pressed the pressed material gets_ * £ fever2 and you

send stone the pressed material dosing according to the in a movable ™ "r _{in a} press mold 3.

different properties of the material to be pressed are achieved in the prescribed ^ ivici B _{pre-compaction}

follows so that Teerdolomitsteine or stones from ahn- in the mold ^{3, we} ° _ubare pressure surface of a

Lich tough and granular material are prepped one in their inclination ve ^^ termination of the

can, which are characterized by a uniform density and upper _punch ^{4 vo} ^ ⁿ " ^inu _Fu j lschieber 2 over a

are characterized by good dimensional accuracy. Pre-compression is carried out _after refilling.

To refine the process, the preliminary controller 6 can be triggered una "" ^ _üsch shifted and

condensation can be carried out in such a way that a difference; then a rr ^^ upper stamp 7

hfköre with gnübe the wedge of the fer the ^Εηα ν * ™ »™» ™ 8 ™ {men from the

compression be made so that a Zwi m; ^^ Oberstempe

shaped body with opposite the wedge of the fer- the ^Εηα ν * ™ »™» ™ 8 ™ {. _ _Vorg enommen. From the

term molding lesser ckflächen to opposite Kei a Endverdicmungsbuu the _Dru

development arises. opposite slope ^ _that ^ _{Vorv £ r} _

In the latter case, the material to be pressed at the upper punch 15 Vorpres- 4 una / ui _Zw i _sc is henformkörper

sen exactly at the point where the seal is so tight that _pressed parts

during the final pressing the ram has the lowest with regard to the keiiung _The inclinations can-

Has an effect. As a result, a good homogeneity to set M e S ^ ^1. · _{DJich se} j _{n, s} o that QUIRES ONLY

i nen also ^ »'^" "Sj ^ Ni

When finishing pressing the ram the smallest g _The inclinations kö

Has an effect. As a result, a good homogeneity to set M e S ^ ^1. · _{DJich se} j _{n, s} o that ledigtät reached the compact. nen also ^ »'^""Sj ^ nU less inclination,

Di Vdih k iit nter con * o hch em intermediate form body "J _b considered

The pre-compression can on the one hand be provided with an intermediate _shaped body

constant pressure, on the other hand depending on how it is for its final formg

on the filling weight of the volumetric dosage. is, arises. Upper punch 4 of the

When refilling after the preliminary tests Precompacting mi _eckmäßig r _unte con-

seal, which is the pre-compression stet on in both process variants Here, as in Fig. 2,

Pre-compression as a function of the compressive 25 ^stantem , ™ ^{K e} . ^ng vipReinrichtung5 provided,

mizability takes place — poor compressibility in a nutshell, a μ: ^^ in _{turn from}

nere refill higher compressibility GroE which the DrucKtieie au b ■ - ^ _{measured value w} i _r d

ßere refill - can also be the weight of the initial of iwIaterialclictiteaDnang t ^ _After f _u Settin g initiation

filling must be taken into account. Here it is advantageous for the regulator to remem- ber, _{as is always the} case, the refilling depending on the grain size. After refilling he 8 ^ _oberstempd7

to be able to be primed and according to the weight mentioned the pre-oiling process for _each pressing process

correct the initial filling. the endver ^ gjertai

Finally, the press pressure can belong to the final ^ so two F «" ^ ¹ ^ _{if the} pre-compression

Finally, the press _{pressure at the final g de V (jrverdich}

term compression according to the pre-compression ^Ε ^ ^Ι5ΐ 2Η ^ _ηΒίΒ £ ΓνοΓη weight of the mold filling

service pressure so constant, controlled. 35 processing in A ⁰ ^ BJB * _its determination in

The invention further relates to a device for lung ^ "^^ ^ Ι a load cell 10 carrying out the process according to any of arrival ^Untert f ^m _n ^ _t ^ ^P ^ Swerte to a controller 8 claims 1 to 6 with at least one pre-compressed provided the lh e me ^ ^^ _{controlsi and}

processing station and a final compression station, passes on which me ^ _{m filling weight of} the

which each have an upper ^punch _{and a lower 40 although dcr ri} ^dr ';_; . _r ^ _r ^u _er ^D _pre ^ _erdi chtungsdruck have inclined stamps with inclined pressure surfaces, as well as f ^ y

at least one from the pre-compression station to the det, and «£ 8« βη, _{ity> with the} same

End compression station movable, by means of a f \ ^b * f2 ! „H„ ee also in addition to the flat

Filling slide, fillable compression mold, thus marked. ^Ε ^ 8 ^u " ^d | S ^ j _n Dependence on the drawing that a measuring device for the penetration 45 ^b ^ ^hr ' ^e ^" ^e _o ⁿ . ^ S ™ ^e the remaining dosage in the depth of the upper ram of the pre-compression station in weight de. ^F ° ™ ^ "'™ _care to make what the mold is arranged for, which measuring device conclusion; ^" ^d '_m; ° I ^ve ™ ° Vorerichtungstation in a regulator, the refilling of the mold d «JJnterstempel ·» d «V ^ _{Regulator g}

controls, and that the pressure surface of the upper punch ^Α ^ ^η ^ ^β ' ^{1 v} ° ™ 3 _{dose values in} its height of the pre-compression station less than or opposite 50 due to the pressure muuao

is oppositely inclined like the pressure surface of the upper distributed w n ± ^ _{variant best; t} therein,

stem feed of the final compression station. , ■ ρ wHihtune with the upper punch 7 in ab-

Carry out further embodiments of this Vorr.chtung the ^Εη ^ ^Γ ™ ^η v _o & rverdichtung, the claims relate 8 to 12. S l _c i, the measuring device 5 is determined

The invention is on the basis of in 55 ^ '^' ^ ßwerte below directly to the main press gegeden drawings exemplary embodiments illustrated ™ ^d ^ "^ ^e ^ _ö" ^ai len explained by devices with which the erf.n- ^bt "* ^c ™ \ ⁿ SJ · _{shows a} so-called double

1 sheet of drawings

Claims (11)

1 2 characterized in that the regulator (8) controlled by the pressure cell (10) controls the height of the pressure surface of the lower punch (9). 1. A method for controlling the Preßgutdosie- 12. Device according to one of the claims? tion when pressing wedge-shaped moldings with 5 to 11, characterized in that the through With the help of a sliding table press or a rotary press the upper punch (7) of the end-of-the-line station table press, in which the material to be pressed is final compression depending on the mold fed through the filling slide and then one of the through the measuring device (5) for the depth of penetration Is subjected to pre-compression and final compression, the upper punch (4) of the pre-compression station characterized in that the degree of compression determined between io takes place. the pre- and the final compression a refilling of the pressed material in the form depending on
from the compressibility of the pressed material determined during the pre-compression. 2. The method according to claim 1, characterized in that the invention relates to a method for controlling indicates that the pre-compaction in such a way is the wedge-shaped metering of the crop when pressing follows that an intermediate molded body with opposite molded body with the help of a sliding table press or the wedging of the finished molding lesser to a turntable press, in which the pressed material is the opposite of the press Wedge arises, form fed through filling slide and then one 3. The method according to claim 1 or 2, characterized in that 20 pre-compaction and one final compaction are subjected,
characterized in that the pre-compaction takes place under a hydraulic constant final pressure for pressing dolomite stones. shaped block press with a step-by-step 4. The method according to claim 1 or 2, thereby switchable compression mold carrier has become known at characterized in that the pre-compression, in addition to the compression mold carrier, has several press dependencies open at the top on the weight of the mold filling. 25 shapes with downward protruding shape and 5. The method according to any one of claims 1 to ejecting punches and in which a prepress 4, characterized in that the refill sen with a small pressing force and a vent of the taking into account the weight of the pre-pressed mass, removing the pre-press filling he follows. pressure before the final final pressing. 6. The method according to any one of claims 1 to 30 is performed. In this known molded stone press 5, characterized in that the final compression is the pre-compression and final compression of moldings processing depending on the pre-compression with a single filling of the mold, so without printing takes place. to be pressed between the two pressing processes 7. Device for carrying out the decay of the material of the mold to be added, vorgenomrens according to one of claims 1 to 6 with at least 35 men. To give the shaped body a wedge shape, at least one pre-compression station and one is first the one during the pre-compression and during Final compression station, each of which finishes pressing the other of the wedge surfaces through kei upper punches and a lower punch with angled press punch of the desired shape in each case Have printing areas, as well as at least fits. one from the pre-compaction station to the final 40 tar dolomite stones can be used in such a form compaction station movable, cannot be pressed by means of a stone press, since during pressing the filling slide can be filled press mold, thereby forming bodies made of such granular material indicates that a measuring device (5) for and especially when dry pressing such the penetration depth of the upper punch (4) of the pre-materials, which are used as refractory bricks for the lining of the Compression station in the mold (3) arranged 45 feed of ovens, converters and the like. Serve, not net is which measuring device (5) via a reg- only different densities and weights in the ler (6) controls the refilling of the mold (3). finished products would occur but and that the pressure surface of the upper punch (4) also does not ensure the exact dimensional accuracy of the molded body the pre-compression station would be less than or not reached. That is because of the fact that it is manufacturing is inclined in the opposite direction, as is the pressure surface of the 50, differences in the initial dimension upper punch that cannot be eliminated (7) the final compaction station. material z. B. Deviations in the grain size 8. The device according to claim 7, characterized in that the porosity and the grain shape are pre-identified, that the inclination of the pressure surface are available and that the sintered dolomite and of the upper punch (4) of the pre-compression station tar existing pressed material due to its viscous change is. 55 speed cannot be shifted and therefore the inclination 9. Apparatus according to claim 7 or 8, that the ram cannot accept. characterized by the fact that the pressure surface of the Upper punch (4) of the pre-compression station with the thought, moldings of great dimensional accuracy and Spikes is provided. to produce the same density in order to 10. Device according to one of claims 7 60 borrowed durability of the individual stones in furnace accessories 9, characterized in that to exclude positions. development of the weight of the filling of the mold (3) The invention is based on the object of a specify a pressure cell (10) in the lower punch (9) of the method, by means of which also tar dol- Pre-compression station is arranged and the mitsteine od. Like. With the same density and large Pressure cell (10) the determined measured value can be produced at 65 dimensional accuracy, a controller (8) passes on, which the Vorver- The solution to this problem is that seal controls. between the pre-compression and the final compression 11. The device according to claim 10, characterized in that the material to be pressed is refilled in the form