SE506795C2 - Continuous press for the manufacture of particle board, fiber board, plastic board, plywood board and the like - Google Patents
Continuous press for the manufacture of particle board, fiber board, plastic board, plywood board and the likeInfo
- Publication number
- SE506795C2 SE506795C2 SE9200585A SE9200585A SE506795C2 SE 506795 C2 SE506795 C2 SE 506795C2 SE 9200585 A SE9200585 A SE 9200585A SE 9200585 A SE9200585 A SE 9200585A SE 506795 C2 SE506795 C2 SE 506795C2
- Authority
- SE
- Sweden
- Prior art keywords
- press
- heating
- plates
- board
- longitudinal
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
- B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
- B30B5/065—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band using anti-friction means for the pressing band
- B30B5/067—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band using anti-friction means for the pressing band using anti-friction roller means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/48—Endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
- B30B15/064—Press plates with heating or cooling means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Press Drives And Press Lines (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
Description
506 795 Z och är högfinslipade, var_vid flera rullplattor är anordnade efter varandra på press- ytan med sågtandsformiga skarvar och mellanliggande expansionsfogar. Utförandet har fördelen att rullplattornas höga ythårdhet åstadkommer ett idealiskt rullstöd för rullstängerna. Emedan ytan i motsats till fallet vid direkt stöd mot värmeplatt- orna inte förslits kan även själva rullstängerna förväntas få en ökad livslängd. 506 795 Z and are finely ground, whereby several rolling plates are arranged one after the other on the surface with sawtooth-shaped joints and intermediate expansion joints. The execution has the advantage that the high surface hardness of the roller plates provides an ideal roller support for the roller bars. Since the surface, in contrast to the case of direct support against hot plates, If the roll bars are not worn, the roll bars themselves can also be expected to have an increased service life.
Rullstängernas exakta rullning längs rullplattan underlättar också en exakt reglering av stålbandens förlopp. Med hjälp av de hydrauliska tryckkrafterna är det möjligt att i vissa områden ställa in högre toppar av upp till cirka 250 bar i yttrycket, dvs med de härdade rullplattorna enligt DE-A- 4 010 308 uppfyller pressystemet kravet på en ur ekonomisk synpunkt gynnsam livslängd.The precise rolling of the roller bars along the roller plate also facilitates precise adjustment of the course of the steel strips. With the help of the hydraulic compressive forces it is possible to set in some areas higher peaks of up to about 250 bar in surface pressure, ie with the hardened roller plates according to DE-A-4 010 308 meets the press system the requirement for a favorable economic life.
Uppfinningens syfte är att vidareutveckla den inledningsvis angivna pressen så att en varierande temperaturprofil kan ställas in med en förhöjd temperatur i pressytans längsgående mittdel, att inga extremt höga tillverkningskostnader uppstår vid tillverkningen av de längskanalförsedda värmeplattorna, och att de för DE-A- 4 010 308 gällande fördelarna bibehålls.The object of the invention is to further develop the initially stated press so that a varying temperature profile can be set with an elevated temperature in the longitudinal central part of the press surface, that no extremely high manufacturing costs occurs during the manufacture of the longitudinal ducted heating plates, and that they benefits applicable to DE-A-4 010 308 are maintained.
Syftet uppfylls enligt uppfinningen med de i patentkravet 1 angivna särdragen.The object is fulfilled according to the invention with the features stated in claim 1.
Föredragna utföringsformer anges i de osjälvständiga patentkraven.Preferred embodiments are set out in the dependent claims.
Med hjälp av en kombination av utförandena enligt DE-A- 3 743 933 och 4 010 308 undviker uppfinningen de ovan beskrivna nackdelarna.By means of a combination of the embodiments according to DE-A-3 743 933 and 4 010 308, the invention avoids the disadvantages described above.
Pressen enligt uppfinningen kommer nu att förklaras närmare med ledning av ritningen. Därvid visar fig 1 en schematisk sidovy av den kontinuerliga pressen, fig 2 utsnittet G ur pressen enligt fig 1, fig 3 en vy uppifrån enligt pilen X i fig 2 av två rullplattor, fig 4 ett temperatur-tid-vägdiagram med en temperatur- profil, och fig 5 värmeytorna på det fasta och det rörliga pressbordet utan rull- plattorna.The press according to the invention will now be explained in more detail with guidance of the drawing. Fig. 1 shows a schematic side view of the continuous press, Fig. 2 shows the section G of the press according to Fig. 1, Fig. 3 a top view according to the arrow X in Fig. 2 of two roller plates, Fig. 4 is a temperature-time-road diagram with a temperature profile, and Fig. 5 the heating surfaces of the fixed and movable press table without roller the plates.
Den i fig 1 visade kontinuerliga pressen består av ett fast pressbord 2, ett rörligt pressbord 3 och dessa föröindande dragstänger (icke visade). Presspalten 4 ställs in genom att det rörliga pressbordet 3 förflyttas uppåt eller nedåt med hjälp av icke visade kolvcylinderaggregat och låses i det önskade läget. Stålbanden 5 och 6 är lagda runt var sitt pressbord 2 respektive 3 med hjälp av var sin drivtrumma 7, 8 och ändtrumma 9, 10. Friktionen mellan de på pressborden 2, 3 anordnade värmeplattorna 11 och de i sluten bana gående stålbanden 5, 6 mins- kas med hjälp av av rullstänger 1 sammansatta rullstångsmattor, som också går i sluten bana. Rullstängerna 1, vilkas axlar går i tvärled relativt bandens genom- loppsriktning, hålls samman med ett förutbestämd delningsavstånd på båda sidor av pressen med hjälp av styrkedjor 12 och förs genom pressen av stålbanden 5 och 6 genom att rulla mot dessa på sin ena sida och mot de båda pressbordens 2, 3 värmeplattor 11 på den motstående sidan.The continuous press shown in Fig. 1 consists of a fixed press table 2, a movable press table 3 and these endearing drawbars (not shown). Press column 4 is set by moving the movable press table 3 upwards or downwards with by means of piston cylinder assemblies (not shown) and locked in the desired position. The steel bands 5 and 6 are laid around each press table 2 and 3, respectively, by means of each drive drum 7, 8 and end drum 9, 10. The friction between those on the press tables 2, 3 and the closed-strip steel strips 5, 6 kas with the help of roller bar mats composed of roller bars 1, which also go in closed lane. The roller bars 1, the axes of which run transversely to the diameter of the belts. race direction, is held together by a predetermined division distance on both sides of the press by means of guide chains 12 and passed through the press of the steel strips 5 and 6 by rolling towards these on one side and towards the two press tables 2, 3 hotplates 11 on the opposite side.
Fig 2 och 3 visar i en genomskärning D-D ett utsnitt G ur fig 1 och tydliggör hur rullplattorna 13 är fastsatta på pressbordets 2 värmeplattor. Rullplattorna 5 sne 795 13 är fastskruvade mot värmeplattorna 11 med hjälp av skruvförbindningar 14' och 18. Sett i genomloppsriktningen är rullplattorna 13 däremot i sina framändar fastsatta i värmeplattorna 11 med hjälp av fixeringsbultar 16, som bildar fasta punkter. Övergångarna 19 mellan närbelägna rullplattor är kuggformiga och kan vara utförda med trapets- eller rundbågar. Med hänsyn till värmeutvidgningen måste dessutom en expansionsfog 17 kvarlämnas.Figs. 2 and 3 show in a section D-D a section G of Fig. 1 and clarify how the roller plates 13 are attached to the hot plates of the press table 2. The roller plates 5 sne 795 13 are screwed to the heating plates 11 by means of screw connections 14 ' and 18. Seen in the passage direction, on the other hand, the roller plates 13 are at their front ends fixed in the hot plates 11 by means of fixing bolts 16, which form fixed points. The transitions 19 between adjacent roller plates are tooth-shaped and can be made with trapezoidal or round arches. With regard to thermal expansion in addition, an expansion joint 17 must be left.
Fig 4 och 5 visar pressytan, som består av värmeplattorna 11 vid inloppet, värmeplattorna 11' i mittdelen och värmeplattorna 11" i pressens utloppsdel.Figures 4 and 5 show the pressing surface, which consists of the hot plates 11 at the inlet, the hot plates 11 'in the middle part and the hot plates 11 "in the outlet part of the press.
Så som framgår av temperatur-tid-vägdiagrammet i fig 4 bildas temperaturprofilen av den höga värmeenergitillförseln i värmezonen a vid inloppet, den sjunkande temperaturen i värmezonen b och den låga temperaturen i värmezonen c vid utloppet. För att temperaturprofilen skall kunna ställas in i tvärled i förhållande till värmeplattornas 11, 11', 11" längsriktning, dvs löpriktningen för en konti- nuerlig press, är värmebärarkanaler 16 anordnade i längsriktningen. De i_ längsrikt- ningen gående värmebärarkanalerna 16 är i tvärled uppdelade i olika värmeytor I till VI, dvs de enskilda värmeytorna I till VI kan ställas in på olika temperatur, till exempel en temperatur F. Med e anges det genom pressen gående pressgodsets ' bredd.As can be seen from the temperature-time-path diagram in Fig. 4, the temperature profile is formed of the high heat energy supply in the heat zone a at the inlet, the decreasing the temperature in the heating zone b and the low temperature in the heating zone c at the outlet. In order for the temperature profile to be set transversely in relation to the longitudinal direction of the heating plates 11, 11 ', 11 ", i.e. the running direction of a continuous modern pressure, heat carrier ducts 16 are arranged in the longitudinal direction. The i_ longitudinal The heat transfer ducts 16 are transversely divided into different heating surfaces I to VI, ie the individual heating surfaces I to VI can be set to different temperatures, for example, a temperature F. The e indicates the press material passing through the press ' width.
Med hjälp av en hydraulisk och/eller elektrisk regleranordning, vars funktion styrs av temperaturkännare på värmeplattorna 11, 11', 11" och av en av press- godsets bredd e beroende storhet, kan temperaturnivån F regleras genom till- koppling eller förbindning av enskilda värmeytor I till VI eller genom att värme- bärare med olika temperatur leds genom värmebärarkanalerna 16 i värmeplattorna 11. Således kan en temperaturprofil F vars temperatur ökar från längssidorna B-B mot den längsgående mittlinjen A-A ställas in. Värmebäraren tillförs till de i pressens längsriktning gående kanalerna 16 i värmeplattorna 11, 11', 11" genom tilledningar 21, som är belägna på den motsatta sidan från stålbanden 5, 6 och sträcker sig vinkelrätt mot denna sida, som således är värmeplattornas baksida. Det är följaktligen möjligt att avsiktligt tillföra den erforderliga värme- energin till endast pressgodsbredden e, vilket som tidigare nämnts förhindrar vågbildning i stålbanden och samtidigt sparar energi, eftersom mindre värmemängd förloras genom strålning.By means of a hydraulic and / or electrical control device, the function of which controlled by temperature sensors on the hotplates 11, 11 ', 11 "and by one of the width e of the goods, the temperature level F can be regulated by connection or connection of individual heating surfaces I to VI or by heating carriers with different temperatures are led through the heat carrier ducts 16 in the hot plates 11. Thus, a temperature profile F whose temperature increases from the longitudinal sides B-B against the longitudinal center line A-A is set. The heat carrier is added to the longitudinal channels 16 in the press in the hot plates 11, 11 ', 11 " through leads 21, which are located on the opposite side from the steel strips 5, 6 and extends perpendicular to this side, which is thus the heating plates back. It is therefore possible to intentionally supply the required heat the energy to only the press material width e, which, as previously mentioned, prevents wave formation in the steel strips and at the same time saves energy, because less amount of heat lost by radiation.
Enligt uppfinningen kan de under respektive ovanför rullplattorna 13 belägna värmeplattorna 11 utföras utan sågtandsfogning i skarvarna 20 mellan de enskilda värmezonerna a, b och c. Med raka fogar 20, som visas i fig 2 och 3, kan värme- plattorna 11 på känt sätt utformas relativt enkelt när det gäller värmebärarmedi- ets riktningsändringsställen 22. Till- och bortförselledníngarna 21 kan anordnas enkelt från utsidan på värmeplattorna 11 vinkelrätt mot dessa vid fogkanterna 20. I kombination med rullplattorna 13 behöver värmeplattorna 11 i motsats till vad som tidigare varit brukligt inte längre förbindas genom svetsning vid de vidAccording to the invention, they can be located below and above the roller plates 13, respectively the heating plates 11 are made without sawtooth jointing in the joints 20 between the individual ones heating zones a, b and c. With straight joints 20, shown in Figs. 2 and 3, heating the plates 11 in a known manner are designed relatively simply in the case of the heat carrier medium. its direction change points 22. The supply and removal lines 21 can be arranged simply from the outside of the heating plates 11 perpendicular to these at the joint edges 20. In combination with the roller plates 13, the heating plates 11 need in contrast what was previously customary is no longer connected by welding at the vid
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914107833 DE4107833C2 (en) | 1990-03-30 | 1991-03-12 | Continuously working press |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9200585D0 SE9200585D0 (en) | 1992-02-27 |
SE9200585L SE9200585L (en) | 1992-09-13 |
SE506795C2 true SE506795C2 (en) | 1998-02-09 |
Family
ID=6427019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9200585A SE506795C2 (en) | 1991-03-12 | 1992-02-27 | Continuous press for the manufacture of particle board, fiber board, plastic board, plywood board and the like |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA2062876C (en) |
FI (1) | FI95006C (en) |
IT (1) | IT1267100B1 (en) |
SE (1) | SE506795C2 (en) |
-
1992
- 1992-02-27 SE SE9200585A patent/SE506795C2/en not_active IP Right Cessation
- 1992-03-10 IT IT92MI000542A patent/IT1267100B1/en active IP Right Grant
- 1992-03-10 FI FI921044A patent/FI95006C/en active
- 1992-03-12 CA CA002062876A patent/CA2062876C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI921044A (en) | 1992-09-13 |
FI921044A0 (en) | 1992-03-10 |
IT1267100B1 (en) | 1997-01-24 |
ITMI920542A0 (en) | 1992-03-10 |
ITMI920542A1 (en) | 1993-09-10 |
SE9200585L (en) | 1992-09-13 |
SE9200585D0 (en) | 1992-02-27 |
FI95006C (en) | 1995-12-11 |
FI95006B (en) | 1995-08-31 |
CA2062876C (en) | 1999-08-17 |
CA2062876A1 (en) | 1992-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |