NO119987B - - Google Patents
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- Publication number
- NO119987B NO119987B NO157430A NO15743065A NO119987B NO 119987 B NO119987 B NO 119987B NO 157430 A NO157430 A NO 157430A NO 15743065 A NO15743065 A NO 15743065A NO 119987 B NO119987 B NO 119987B
- Authority
- NO
- Norway
- Prior art keywords
- press
- valve
- hydraulic
- pressure
- accumulator
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/02—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes
- D06P1/12—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes prepared in situ
- D06P1/127—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using azo dyes prepared in situ using a stabilised diazo component, e.g. diazoamino, anti-diazotate or nitrosamine R-N=N-OK, diazosulfonate, hydrazinesulfonate, R-N=N-N-CN
Description
Hydraulisk presse. Hydraulic press.
Ved forskjellige typer av hydrauliske At different types of hydraulic
presser, særlig ved sveisepresser og presser til forarbeidelse av plastiske stoffer er det nødvendig at en øyeblikkelig og hurtig etterpressing av det forpressede materiale settes i gang så snart motstanden ved ar-beidsslaget begynner å synke på grunn av smelting eller oppbløting av pressmateria-let. Hittil ble denne virkning oppnådd ved sveisepresser ved innsetning av en kraftig fjær mellom stemplet og presseplaten, og ved presser til bearbeidelse av plastiske stoffer ved innkobling av en pneumatisk akkumulator. Ved en forandring av presse-kraften var det nødvendig i det første tilfelle å etterstille fjærens spenning og i det siste tilfelle å innstille på nytt en utkob-lingsinnretning som opprettholder trykket i den pneumatiske akkumulator. presses, particularly with welding presses and presses for the processing of plastic substances, it is necessary that an immediate and rapid post-pressing of the pre-pressed material is started as soon as the resistance at the working stroke begins to decrease due to melting or softening of the press material. Until now, this effect was achieved with welding presses by inserting a strong spring between the piston and the press plate, and with presses for processing plastic substances by connecting a pneumatic accumulator. In the event of a change in the pressing force, it was necessary in the first case to reset the tension of the spring and in the latter case to readjust a disconnection device which maintains the pressure in the pneumatic accumulator.
Hensikten med oppfinnelsen er å til-veiebringe en hydraulisk presse med hydraulisk akkumulator til frembringelse av et etterpressetrykk ved minsking av motstanden fra arbeidsstykket, særlig for svei-sepressing og formpressing av plastiske kunststoffer, og pressen i henhold til oppfinnelsen utmerker seg ved at rommet i den i pressesylinderens umiddelbare nær-het anordnede pneumatiske akkumulator på en måte som gir minst mulig hydraulisk motstand ved hjelp av en i og for seg kjent minimalventil er direkte forbundet med pressesylinderens arbeidsrom, hvilken minimalventil (som lukkes automatisk ved en innstilt minimal trykkverdi), åpner i retning mot og er anordnet i den pneumatiske akkumulators rom, hvor ventilbelastningen er innstilt slik at ventilen står åpen under hele presseoperasjonen. The purpose of the invention is to provide a hydraulic press with a hydraulic accumulator for producing a post-press pressure by reducing the resistance from the workpiece, particularly for welding pressing and molding of plastic materials, and the press according to the invention is distinguished by the space in it in the immediate vicinity of the press cylinder, a pneumatic accumulator arranged in a way that provides the least possible hydraulic resistance by means of a minimum valve known per se is directly connected to the working chamber of the press cylinder, which minimum valve (which closes automatically at a set minimum pressure value), opens in direction towards and is arranged in the pneumatic accumulator room, where the valve load is set so that the valve remains open during the entire pressing operation.
I For å forklare utførelsen henvises til tegningen med eksempler. I To explain the execution, reference is made to the drawing with examples.
Et stempel 2 beveger seg i en presse-sylinder 1. I sylinderhodet er anbragt en fjærbelastet minimal-ventil 1 av en i og for seg kjent konstruksjon. Denne består av en ventil 3 og en fjær 4. Ventilen 3 skiller pressesylinderens arbeidsrom 5 fra et etterpressing trykk-rom 6 som omgir minimalventilen og danner en pneumatisk akkumulator. Styringen av presse-stemplet foregår ved hjelp av en sleide — eller ven-tilstyring 7, som får oljen fra en med trykk-reguleringsinnretning utstyrt pumpe 8. Fjæren 4 innstilles ved hjelp av en skrue 16 slik at ventilen lukker seg ved ca. 80 % av det laveste pressetrykk. Under presse-slaget stilles styrearmen 11 i nederste stilling og sleiden 12 står i øverste stilling slik at væsken når presserommet 5 og etter at et bestemt trykk er oppnådd fyller delvis også etterpressing akkumulator-rom 6. Så snart det innstilte pressetrykk er nådd åpnes minimalventilen 3 helt, og det på ventilstammen virkende trykk bevirker en kraft som overstiger fjærens 4 spenning. En fylling av komprimert nitrogen eller luft befinner seg alltid over væsken i akkumulatorrommet 6. Fyllingen henholdsvis påfyllingen med gass foregår ved hjelp av en ventil 15. Deretter er anordningen under trykk og forbereder etterpressingen av stemplet, så snart motstandsreduksjo-nen av det materiale som skal presses inn-trer. Etterpressingen foregår meget hurtig, da denne bevirkes av komprimert gass og væsken fra akkumulator-rommet 6 kan A piston 2 moves in a press cylinder 1. A spring-loaded minimal valve 1 of a construction known per se is arranged in the cylinder head. This consists of a valve 3 and a spring 4. The valve 3 separates the press cylinder's working space 5 from a post-pressing pressure space 6 which surrounds the minimal valve and forms a pneumatic accumulator. The control of the press piston takes place by means of a slide or valve control 7, which receives the oil from a pump 8 equipped with a pressure regulation device. The spring 4 is adjusted by means of a screw 16 so that the valve closes at approx. 80% of the lowest press pressure. During the press stroke, the control arm 11 is set in the lowest position and the slide 12 is in the upper position so that the liquid reaches the press chamber 5 and after a certain pressure has been achieved partially also fills the post-pressing accumulator chamber 6. As soon as the set press pressure is reached, the minimum valve 3 is opened completely, and the pressure acting on the valve stem causes a force that exceeds the tension of the spring 4. A filling of compressed nitrogen or air is always located above the liquid in the accumulator space 6. The filling or filling with gas takes place with the help of a valve 15. The device is then under pressure and prepares for the subsequent pressing of the piston, as soon as the resistance reduction of the material to be is pressed in. The pressurization takes place very quickly, as this is caused by compressed gas and the liquid from the accumulator space 6 can
strømme gjennom den åpne ventil 4 direkte til arbeidspresserommet 5. Etter av- flow through the open valve 4 directly to the working press room 5. After
sluttet presseoperasjon stilles styrearmen 11 i øverste stilling (sleiden 12 står da i nederste stilling) hvoretter væsken strøm-mer over i pressestemplets løfterom 9. Trykket senkes i rommet 5 ved at rommet forbindes ved en fordeler 7 og en avløps-ledning 10 med en beholder 14. Derved unn-viker også endel av væsken fra akkumulator-rommet 6. Ved synkning av trykket i etterpresserommet til en verdi svarende til fjærens 4 spenning, lukker minimalventilen 3 automatisk og forhindrer et videre trykkfall i akkumulatoren og en tilfeldig tømning av gass fra rommet 6. Det er der-for klart at der ved en innstilling av et annet trykk i akkumulatorrommet alltid oppstår et trykk som er like stort som pressetrykket. after the press operation is finished, the control arm 11 is set in the upper position (the slide 12 is then in the lower position) after which the liquid flows into the press piston's lifting chamber 9. The pressure is lowered in the chamber 5 by connecting the chamber by a distributor 7 and a drain line 10 to a container 14. This also avoids part of the liquid from the accumulator space 6. When the pressure in the post-pressing space drops to a value corresponding to the tension of the spring 4, the minimal valve 3 closes automatically and prevents a further drop in pressure in the accumulator and an accidental emptying of gas from the space 6. It is therefore clear that when a different pressure is set in the accumulator space, a pressure which is as great as the press pressure always occurs.
Så snart stemplet 2 er kommet i sin øverste stilling, avdekker dets underkant overløpskanalen, hvori der er anordnet en tilbakeslagsventil 13, og væsken strømmer under redusert trykk fra rommet 9 gjennom tilbakeslagsventilen 13, fordeleren 7 og rørledningen 10 til beholderen 14. As soon as the piston 2 has reached its uppermost position, its lower edge reveals the overflow channel, in which a non-return valve 13 is arranged, and the liquid flows under reduced pressure from the chamber 9 through the non-return valve 13, the distributor 7 and the pipeline 10 to the container 14.
En videre vesentlig fordel ved innret-ningen ifølge oppfinnelsen består i at akkumulator-rommet når et bestemt pressetrykk er nådd, fylles samtidig med pressesylinderens arbeidsrom og dermed minskes trykkstigningshastigheten. Dette er særlig fordelaktig ved sveisning, da beskadigelsen av fremspring og vorter unngås og ved forarbeidelse av plastiske kunststoffer, pressmaterialets forvarmningstid forlen-ges samtidig som slitasjen på pressverk-tøyene reduseres. A further significant advantage of the device according to the invention is that the accumulator space, when a certain press pressure is reached, is filled simultaneously with the working space of the press cylinder and thus the rate of pressure rise is reduced. This is particularly advantageous when welding, as the damage to protrusions and warts is avoided and when processing plastic materials, the press material's preheating time is extended at the same time as the wear on the press tools is reduced.
Claims (2)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF42458A DE1262958B (en) | 1964-03-28 | 1964-03-28 | Process for the production of water-insoluble azo dyes on textile material made of cellulose or protein fibers |
DE1964F0044682 DE1279638C2 (en) | 1964-03-28 | 1964-12-12 | Process for the production of water-insoluble azo dyes on textile material made of cellulose or protein fibers |
DE1965F0045283 DE1297072C2 (en) | 1964-03-28 | 1965-02-19 | Process for the production of water-insoluble azo dyes on textile material made of cellulose or protein fibers |
DE1965F0045301 DE1296122C2 (en) | 1964-03-28 | 1965-02-20 | Process for the production of water-insoluble azo dyes on textile material made of cellulose or protein fibers |
Publications (1)
Publication Number | Publication Date |
---|---|
NO119987B true NO119987B (en) | 1970-08-10 |
Family
ID=27436917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO157430A NO119987B (en) | 1964-03-28 | 1965-03-27 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3502424A (en) |
JP (1) | JPS4942862B1 (en) |
AT (1) | AT259508B (en) |
BE (1) | BE661773A (en) |
CH (1) | CH461671A (en) |
DE (4) | DE1262958B (en) |
DK (1) | DK121294B (en) |
GB (1) | GB1092033A (en) |
NL (1) | NL6503893A (en) |
NO (1) | NO119987B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ527388A (en) * | 2001-03-08 | 2005-06-24 | Ciba Sc Holding Ag | Method of colouring porous material |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2926986A (en) * | 1960-03-01 | Solutions of diazoamino derivatives | ||
US1882560A (en) * | 1928-05-07 | 1932-10-11 | Gen Aniline Works Inc | Manufacture of water-insoluble azo dyestuffs |
US1882561A (en) * | 1929-02-25 | 1932-10-11 | Gen Aniline Works Inc | Dyeing preparation |
US2088506A (en) * | 1934-04-06 | 1937-07-27 | Du Pont | Process and composition for applying and fixing diazoimino dyestuffs |
US2897186A (en) * | 1956-02-21 | 1959-07-28 | Pharma Chemical Corp | Diazoamino dye intermediates |
DE1057061B (en) * | 1957-12-21 | 1959-05-14 | Hoechst Ag | Process for the production of water-insoluble azo dyes on vegetable fibers |
-
0
- BE BE661773D patent/BE661773A/xx unknown
-
1964
- 1964-03-28 DE DEF42458A patent/DE1262958B/en active Pending
- 1964-12-12 DE DE1964F0044682 patent/DE1279638C2/en not_active Expired
-
1965
- 1965-02-19 DE DE1965F0045283 patent/DE1297072C2/en not_active Expired
- 1965-02-20 DE DE1965F0045301 patent/DE1296122C2/en not_active Expired
- 1965-03-23 US US442191A patent/US3502424A/en not_active Expired - Lifetime
- 1965-03-25 CH CH417165A patent/CH461671A/en unknown
- 1965-03-26 DK DK159365AA patent/DK121294B/en unknown
- 1965-03-26 AT AT278565A patent/AT259508B/en active
- 1965-03-26 NL NL6503893A patent/NL6503893A/xx unknown
- 1965-03-27 NO NO157430A patent/NO119987B/no unknown
- 1965-03-29 JP JP40017847A patent/JPS4942862B1/ja active Pending
- 1965-03-29 GB GB13224/65A patent/GB1092033A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1092033A (en) | 1967-11-22 |
DK121294B (en) | 1971-10-04 |
CH461671A (en) | 1968-05-15 |
DE1297072C2 (en) | 1973-02-22 |
US3502424A (en) | 1970-03-24 |
DE1296122C2 (en) | 1973-02-22 |
DE1279638C2 (en) | 1973-05-30 |
DE1296122B (en) | 1969-05-29 |
DE1279638B (en) | 1968-10-10 |
AT259508B (en) | 1968-01-25 |
DE1297072B (en) | 1969-06-12 |
DE1262958B (en) | 1968-03-14 |
NL6503893A (en) | 1965-09-29 |
BE661773A (en) | |
JPS4942862B1 (en) | 1974-11-18 |
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