DE1889593U - DEVICE FOR APPLYING MULTI-COMPONENT RESIN IN OPEN AND CLOSED CAVITIES. - Google Patents

Description

»Ο70Ο7 · 18.1,8Ί

SCHERING AG

Patent department. - ^:

DrWs/Vt/GM 45. -

Device for applying multi-component resins in closed cavities -. ' - ~ ^ ^ ^; .

The -new "relates to a device for applying. Multi-component resins in open and closed cavities, consisting of one of the number ^: the -components ent speaking number of Hoohdruekzahnradpumpen with motor drive as Porder- and metering, / have supply lines to storage containers for the resin components and which, if necessary via pressure equalization pots, are connected by high-pressure hoses to a high-pressure mixing chamber for multi-component resins, which at _: the outlet opening has a connection piece to a cavity to be dug out * ..

The device according to the innovation is used for. Have irregular solidification materials, in particular finest ..the column or Hisse or inaccessible voids / by those ^with:; the multicomponent resins, e.g. filled by injection; * Further areas of application ". for the. new rungs-compliant device. -; are, for example, known casting processes in the electrical sector and when using slot-out devices. the lamination technology.. -. _-. ... ^; '"-.; . "" ■ -_: .. ... "." -. ... ^: .

A device for the areas of application listed must have the following characteristics; ...; _; "; -, --..-

1. Generation of high pressures in the machine for the mixing process, '-' ■ - "..

2. ■ Maintaining these pressures and transferring them to the .to inject .. "'/

3. Flawless dosing of the resin components, ~ ... "-.:-_-■:: "-"

4. Continuous work instruction, - "■ _-." - - ■■ - '" ^{: φ} ϊ--

5. Easy cleaning of the parts of the company "those with". The resin may be brought into contact with the chemical. .: ^ r '. ^: "." -

In the renewal modern "device can be any ^{high-pressure;} - ■ - .: gear pumps by a motor through · = a ^ Gear Unit efcasten.an-- _:: treibeiu .Hierbei, you have the _possibility} by: Replacing / the '■. - ■ '■ gears, in the gear box that: Mixing ratio too low.

-2-

SCHERING AG -2-

Patent Department .. ■ - ■ "". . - ■ ". ■
Dr.Ws/Vt/GM 45 /. " ^:

To - "two components in fine, broad mixing ratio. '" Such as epoxy resin or poly esterharzen that in two-component resins ^ "- to combine, it can also be useful _..-: be any pump with a. Infinitely variable gear drive to equip, The two gears can also be coupled by a linkage, so that a variation of the total delivery rate is possible while keeping the once set mixing ratio constant. . .. "-" ■ - .. "... - -

"Ills. high-pressure gear pumps. come into question, those with which one can generate pressures of 50 to 400 atmospheres and hold them for a long time. .... - _- ■ -.- ^:. " - ". '

Gate directions known per se can be used as the Plochdruekmischkammer. Particularly suitable is a high-pressure mixing chamber in which a mixing element rotates which is driven from the outside by a shaft inserted into the mixing chamber, the mixing chamber being an antechamber outside the shaft inlet . * is connected upstream, through which one of the components to be mixed is passed on the way into the mixing chamber. In connection: _of antechamber and mixing chamber can, one; ..- "throttle or a non-return valve, whereby a higher" pressure is provided in the antechamber *. This design of the high-pressure chamber prevents parts of the mixed multi-component resin from penetrating into the shaft inlet, which could lead to malfunctions. . - "/ ^" v

Since the gear pumps deliver from a certain viscosity from .. ^: . ' Alternatively, it may be necessary to use resins of very, high viscosity. ■ sity. by. Heating on eligible. Viscosity - to bring, ■■ '.- ". ■ what by heating up the" Yorr.at.sb he. Success- kanpa. The s. Must be taken into account especially if the resins contain no IuIl- * ... substances -. : ■: ..-.-..- "- /: - ■ ^.: -. ^: - \

line special version of the. innovations according to en. Contraption . towards the application of two-component resins ,, the applied in the ratio 2 r 1, consists of three; High- . ^ pressure gear pumps .. the same delivery volume and the same

SCHERING AG

Patent department
^ Dr.Ws/Vt/GM 45.

operating speed, .. by a controllable ^gear: are motor-driven and which have a supply line to two reservoirs for the two resin components and the .. continue ,, optionally via pressure equalization pots, by high pressure chläucne with a high pressure mixing chamber for Zweikom-. "Component resins are connected, with two pumps connected to the storage tank - of the resin, of which two parts - ■". are used and a pump is connected to the reservoir of the resin, a part of which is used.

As two-component resins, which are used in a ratio of 2: 1, come. For example, systems made from epoxy resins and polyaminoamides are possible, - - ^: .. - ■■ '■

The ■ not obvious arrangement, a two-component system Pumping with three gear pumps has the following advantages: - ".." "■" "■" - - ■; -. . ·. ;

1. It can use pumps. same curve for application grain--, men, i.e. -the. The delivery rate of all pumps remains identical, even at different speeds, -and- that. Mixing ratio is not influenced. ■ ".-.

2. The pumps can be mounted in a star shape around a drive shaft, which means a "technical simplification". ■■ "■ '". _ _: '".. -: '.""; . . - ■: = '■. - -

3. Through the. Use of. three pumps of the same type ^:

- result.by.the. Typing of spare parts before parts for repairs and replacements! ~; ·

The; drive of the gear pumps for. according to the innovation. Devices can .by motors. take place, whereby the energy number:. is arbitrary. If there is no solvent in the system; is available, can also electrOmotpre., which are "not explosion-proof .. are> - ,. be used. "" - .. .-- ■ "- ■" ■ "■ _ '.-., ■ - ■;.

The metering and delivery by gear pumps results in a continuous functioning * By separating the mixing '' chamber of the basic device is also an application on construction sites -

SCHERINGAG -4-

Pat ent a "b te Hung

with considerable degrees of difficulty possible. Through the ■. separate supply of the components to the mixing chamber is the. Distance of the place of work from ^: G-Rundgerat any., 33a only. the .. "" mixing chamber is brought into contact with a resin mixture capable of reacting j it is very easy to tilt the device. After work, the chamber is either rinsed with water or cleaned using a one-component rinsing process. .

Description τοη. Embodiments of the neuungsg.emäße gate.

Description of the execution form according to Pig. I -

In two commercially available storage containers (1 and 2), which are interchangeably connected to the device with plastic hoses by means of screw caps. the two resin components are located. The resins are sucked in by two gear pumps (3 and 4), dosed and fed to the high-pressure mixing chamber (Fig..3). ■. - ■ .- ■. ■; ■. ; ., - .. ■ _. ■ ■ '. "; ^Λ

In the described Palle, the Ptimpen (3 and 4) have the same delivery volume. ^{The mixing ratio can be varied by} changing the drive wheels in the gear box (7), ie if the number of pump revolutions is changed, the delivery rate will also change. ■■■ ">. '" .- ■ ".. ... -.. ·'.." - "..." ■■■■ -

In the case described, the pumps have a delivery volume of. "." -. 10 cm-yUpM. The drive speed is between 2.0 "and _: .80 rpm. The drive is a continuously variable gear motor (6) ..- ^!. .. - -'- ':' - - ^: -_ . -."; - '^::; _ ■ "■ '. -... ^:

Ton the two pressure generating ten wheel pumps (3 and 4) .will the resin now through two pressure lines (8th and 9) and. by" -.-,:;. flexible high-pressure hoses of the mixing chamber (Fig. 3). fed; ".-the as described above Bn \ executed τ-istl .. \:. . -

Since the resins are only mixed in the -H. High-pressure mixing chamber, "-the supply hoses outside the ^.:

SCHERINGAG _5_

Pat ent department: ■ -.--.
Dr.Ws/Vt/GM 45 y .-. ■■■■■: .- ;.

Machine horizontal mixing chamber can be of any length., V

In the Harz pipeline. (.9) there is a pressure gauge. (14 ·) ,. the : on the one hand shows the operating pressure, on the other hand the machine inoperative via a contact if excess pressures occur puts. On the continuous drive shaft of the gear motor ■ - ". there is a tachometer (15); the one that is instantaneous ! On the other hand, it shows the total amount on a counter. ; ; . '■ ". -: /

Description of the embodiment according to FIG.

The two resin components are located in two commercially available storage containers (1 and 2), which are exchangeable and interchangeable with the device by means of screw caps and "plastic hoses" (the containers are attached to a hanging device on the machine). The resins are sucked in, dosed and fed to the high-pressure mixing chamber (12) by three gear pumps (3, 4 and 5). In the described IPaIl, the: pumps "■. (3 and 4) provided together for the promotion of the component, of which two parts; are .eingesetzt * The pump (5) .übernimmt the promotion of the resin, from the used part "■" ... "is all three pumps have da.s same flow _outlets.:. s and same drive speed in .; described. hab_en case the pumps Rtn FÖrdervolumen- of ^ lO cc per revolution _-The: - ■ ■ _ ~ Betriebsgesehwlndigkeit the plant is between 20 and 80 rpm, a capacity from 35 to 145 kg per hour what ';.... As ^{: the} pump is driven by an infinitely variable gear motor (6). The power transmission takes place via gears (7) .. .. _: ■ -.... .-.

Of the three pressure-generating gear pumps (3, 4 and 5) the resin ^; now about ^; -Two pressure lines (8 = and 9) through flexible: Hoclidruckschläuche '(10 and 11), the ^ mixing chamber (12) Xs . -Fig. 3) supplied. ' : -. _: _ ^ · - - _: ^ -. .: - ~ _: - "-?""._{; r} . -_ ■. .- ■""-".

- The resin outlet lines of the pumps (3 and. 4) _: are together-

SCHERINGAG - - -6-

Patent from ^{distribution:::.} "".
Br.Is/Tt/SM 45 .. ",. -

(8) ^ Since the resins are only mixed in the high-pressure mixing chamber, the supply hoses. - At the outlet opening of the mixing chamber (1-2) there is a. Pressure gauge - (14). and a connector. (.13) for the injection or .G-ießvorriohtungV ^; '-. "■ .- ■" ■ .-

The machine is switched on and off using a switch on the mixing chamber. In the heating line (9) there is a manometer (14) , - which- shows the operating pressure on the one hand, on the other via a contact: when excess pressures occur that. \ G-device does not work. Is there a tachometer (15) on the drive shaft of the geared motor? which on the one hand shows the current flow rate, on the other hand holds the total amount on a counter. . ■ - ■ "" -...

Description of the high pressure mixing chamber according to Fig. 3. "and 4

In Fig. 3 .and 4 the high pressure chamber is on: an execution. example "illustrated, and indeed in Fig. 3 in longitudinal section and in Fig. 4 in cross section along the line A - B - in

The high pressure chambers are tob. a strong cylinder. (18) formed, which is provided with two internal threads (19 and: 20) for connecting the drive motor (21) or a hose line to the nozzle. Through a transverse wall (22) in. Cylinder (18) is this in a mixing chamber (M) and a pre. chamber (IT ") , both of which are connected by a bypass line (23). .--. V .. ... ... .....;

In addition, to the -Mischlcamme'r ^: at. (2.4) and to the antechamber at (25) the supply line for. the-two mixing components -.-, - "to connect / -of-which, for example, the synthetic resin at (24) ... and the hardener. Fei - ^ 25-); supplied ^ is ..; In tder. Mixing chamber is a rotatably mounted ^: mixing element indicated, there is a star-shaped distributor wheel (26) , a vortex disk (27) with incisions and cutouts and a perforated mixing cross ....

SCHERINGAG _: »7-

Patent department: Dr. ¥ s / Vt / GM 45 - -; , V ^: "■.

. (- "28), and is coupled by an intermediate shaft (29) to the.An- -.-""/ - drive motor (21)." - .. "..". _ - /:

The intermediate shaft (29) rotates, in a bearing (30) in the "transverse wall (22), which can be sealed with a stuffing box (31).""" ·: "- ^r - - ■""■■■'. -. ■ "--- .;" ■ - "

In the above, the passage of the intermediate shaft (29) is through the Yorkam Here ^: (V) to the outside to the drive motor (21) through a high pressure seal. This consists of a cylindrical rotating part (32) with two square couplings ( 33) for. The .intermediate shaft. - (29) and. (34) for the drive motor (21). ~ ^: ";, ■ '.-" ■ - "■■ - - ' . . -: ..-_: "■. - -

On the outside of the rotating part (32) there are alternately non-fixed sealing rings made of steel (.35) and from. Poly-tetrafluoroethylene (36). The turned part. (32). rotates in .. .. a sliding guide bearing (37) made of special bronze. . . ; -_ _: ..

The pressure from the antechamber ■ _ (V) is transmitted through the _ '. Bore (38) of the intermediate shaft (29) -a.uf the rotary part (32) and; on the sealing rings (35 and 36). The rotating part (32) can. - .: "" -, .. do not avoid, because it is supported at the end on a thrust bearing (41), while ¹ the loose steel rings (35) the polytetrafluoroethylene rings (36). sealing against the plain bearing wall. (37) press. "'-." -. . . . ^: .- -. '".-"

The storage of the.MiSehorgans at the outlet end, the mixing chamber. A center insert (39) is used which has breakthroughs for the passage of the G-emenges ^ A perforated plate (40) is inserted between the cylinder (18) and the connecting piece (19). ^;

Claims (2)

SCHERINGAG ■ -.- -8- Patent Department Dr.Ws/Vt/GM 45 u t z 'a 1. Device for applying multicomponent resins in P ■ - ■■■■■■ "- open and closed cavities., consisting of one: the number of components corresponding number of high-pressure gear pumps with motor drive as; Conveyor and D ο si er organs ", which have supply lines to storage containers for the resin components and which, if necessary via pressure equalization pots, are connected by high-pressure hoses to a high-pressure mixing chamber for multi-component resins, which at the outlet has a connector to a cavity to be poured .. """■; - _:. - "... 2. Modification of the device according to claim "1 in the direction - on the application of two-component resinsj die im .; . Ratio.-2 ϊ 1 are used, ifl consists of three high-. Pressure gear pumps of the same. delivery volume; and the same arrival -triebsgeschwindigkeit carried an adjustable gear "motor .angetrieben and a ^depending; _feed: possess two storage containers for the two resin components and the further optionally -about surge pots, - by high pressure hoses... a "high-pressure mixing chamber for two-component resins are veibundeii, two pumps are connected to the reservoir of the resin, of which two ■ - ^; . "Eeile can be used and a pump is connected to the resin reservoir, from which a rope is inserted ... ._.. -. '-: ... ^: ... ... _ ... ^: . -3 · ^; Device according to. Claims 1 and. 2, characterized in ^:. . -: that a -mixing chamber is used as the high-pressure mixing chamber - "is' in which ^: a mixer runs through ^ J that from the outside through -----.-" - - _; "" - ■ a shaft inserted in the mixing chamber is driven, -: ^ '"■ -.-Z = - ..WoXeJL d'er / MisGhkammer outside the shaft inlet ^{; % ΐη§ι:} -, _i: ""■ Pre-chamber is connected through which one of the. To mi—. -." seeing components on the way to the ^; Mixing chamber towards: ν. is passed through-, and wherein in the antechamber 'for a .. ^: higher pressure than in the mixing chamber is provided.-; ; ^; , - ■ ■