SE509011C2 - Method and apparatus for manufacturing an elongated hollow product - Google Patents

Method and apparatus for manufacturing an elongated hollow product

Info

Publication number
SE509011C2
SE509011C2 SE9800206A SE9800206A SE509011C2 SE 509011 C2 SE509011 C2 SE 509011C2 SE 9800206 A SE9800206 A SE 9800206A SE 9800206 A SE9800206 A SE 9800206A SE 509011 C2 SE509011 C2 SE 509011C2
Authority
SE
Sweden
Prior art keywords
molds
during
manufacturing
manufacturing cycle
product
Prior art date
Application number
SE9800206A
Other languages
Swedish (sv)
Other versions
SE9800206L (en
SE9800206D0 (en
Inventor
Vidar Franzen
Original Assignee
Vidar Franzen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vidar Franzen filed Critical Vidar Franzen
Priority to SE9800206A priority Critical patent/SE509011C2/en
Publication of SE9800206D0 publication Critical patent/SE9800206D0/en
Publication of SE9800206L publication Critical patent/SE9800206L/en
Publication of SE509011C2 publication Critical patent/SE509011C2/en
Priority to PCT/SE1999/000083 priority patent/WO1999037472A1/en
Priority to AU25547/99A priority patent/AU2554799A/en

Links

Classifications

    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
    • B29C33/36—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable in one direction, e.g. in a closed circuit
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles

Abstract

The invention relates to a method in and an arrangement for the manufacture of an elongated, hollow, rotationally symmetrical product such as a flagpole. At least one elongated, tubular mould (1) is successively charged with the material necessary for manufacture and which goes to form the product, such as release agent, gel coat, thermosetting plastic, etc. During at least part of the manufacturing process the mould is made to rotate about its axis before being finally discharged. According to the invention a number of moulds (1a-1p) in a manufacturing cycle are conveyed in stages by means of conveying elements (2) between charging stations for the various materials. After a given interval the moulds (1a-1p) are moved to the next station in the cycle. During a predetermined part of the manufacturing cycle the cylindrical surfaces of the moulds are brought into contact with at least one belt (5), the running speed of which determines the speed of rotation of the moulds (1i-1o).

Description

20 25 30 35 509 011 2 - Den höga precisionen medför en mycket enkel montering av flaggstångens delar. 20 25 30 35 509 011 2 - The high precision results in a very simple assembly of the parts of the fl rod.

- Den säsongsmässiga lageruppbyggnaden elimineras genom kombinationen av standardlängder och den höga produktionstakt denna metod medger.- The seasonal stock build-up is eliminated by the combination of standard lengths and the high production rate this method allows.

Uppfinningen skall i det följande förklaras ytterligare med hänvisning till bifogade ritning på vilken fig 1 i en sidovy schematiskt illustrerar en uppñnningsenlig anord- ning. Fig 2 visar i en planvy ovanifrån en anordning enligt uppñnningen med be- skicknings- och plundringsutrustning.The invention will be further explained in the following with reference to the accompanying drawing, in which Fig. 1 schematically illustrates a device according to the invention in a side view. Fig. 2 shows in a plan view from above a device according to the invention with loading and looting equipment.

På ritningen betecknas med la, lb lp ett antal långsträckta, rörfoimiga formar.In the drawing, la, lb lp denote a number of elongate, tubular molds.

Dessa är inrättade att transporteras stegvis tvärledes av en vid varje formände anord- nad och över tvenne valsar 2b, 2c löpande kedjetransportör 2 med medbringare 2a i den av en pil 3 markerade riktningen mellan beskickningsstationer och en plund- ringsstation. Med varje form tillverkas ett 4 m långt ämne eller ämne av lämplig längd. Ett ändstycke i ämnets ena ände har en diameter anpassad till innerdiametem hos nästa ämne så att flera ämnen sarnrnanmonterade ger önskad flaggstångslängd.These are arranged to be transported stepwise transversely by a chain conveyor 2 arranged at each foreman and running over two rollers 2b, 2c with carrier 2a in the direction marked by an arrow 3 between embarkation stations and a looting station. With each mold, a 4 m long blank or blank of suitable length is made. An end piece at one end of the blank has a diameter adapted to the inner diameter of the next blank so that your blanks assembled give the desired flagpole length.

Monteringen sker lämpligen i samband med resningen av den färdigmonterade flagg- stången. Detta innebär förenklad transport eftersom transporten av de förhållandevis korta ämnena ej är utsatt för sådana restriktioner som gäller vid transport av långa föremål, så som en hel flaggstång. Flera sådana stycken monteras samman till önskad flaggstångslängd, vilket med den noggrannhet, som tillverkningen medger, är en mycket enkel åtgärd.The assembly is conveniently carried out in connection with the erection of the pre-assembled fl boom. This means simplified transport because the transport of the relatively short substances is not subject to such restrictions as apply to the transport of long objects, such as a whole fl bar. Several such pieces are assembled together to the desired fl rod length, which with the accuracy that the manufacturing allows, is a very simple measure.

I beskickningsstationerna införes i resp form de för tillverkningen nödvändiga resp i flaggstången ingående materialen och i plundringsstationen tas flaggstångsstyckena ut ur formen. I fig 1 befinner sig formen la i plundringsstationen, formen lb befinner sig i en station i vilken släppmedel införes i formen och i stationen i vilken formen lc befinner sig införs gelcoat i formen. I stationerna i vilka forrnarna ld- l g befinner sig pågår härdning av införd gelcoat. En värmestrålare 4 påskyndar härdningen genom uppvärmning av nämnda formar. Formen lh beñnner sig i en beskickningsstation för glasfiber och formarna lc resp 1 j tillföres polyester resp krita i sina motsvarande beskickningsstationer. Ide stationer, i vilka formarna lk-lp befinner sig i fig I pågår härdning av tillförd polyester. Man noterar att formarna li-lo i sina visade positioner med sina resp mantelytor anligger mot ett vid resp formände anordnat transportband 5, vars löpriktning markeras med pilar 6, så att nämnda formar bringas rotera kring sin längdaxel så som markeras med pilar 7. Beskickningen med polyester och krita sker alltså under det att formarna roterar. Rotationshastigheten bestäms av bandets 5 löphastighet. Formarnas rotation underlättas av att medbringarna 2a i sina ytterändar 10 15 20 25 30 3 509 011 är försedda med roterbart lagrade stödnillar 2a1. För styrning av formarna lh och 1p i deras resp positioner ñnns halvcylindriska styrytor 8a, 8b.In the embarkation stations, the materials necessary for manufacture or in the fl ridge bar are introduced in the respective shape and in the looting station, the fl ridge bar pieces are removed from the mold. In Fig. 1, the mold 1a is located in the looting station, the mold 1b is located in a station in which release agent is introduced into the mold and in the station in which the mold 1c is located, gelcoat is introduced into the mold. In the stations in which the formers ld- l g are located, curing of the inserted gelcoat is in progress. A heat radiator 4 accelerates the curing by heating said molds. The mold lh is located in a loading station for glass vessels and the molds lc and 1j, respectively, are supplied with polyester and chalk, respectively, in their corresponding loading stations. In the stations in which the molds 1k-1p are located in Fig. 1, curing of supplied polyester is in progress. It is noted that the molds li-lo in their shown positions with their respective circumferential surfaces abut against a conveyor belt 5 arranged at the respective forearm, the direction of travel of which is marked with arrows 6, so that said molds are caused to rotate about their longitudinal axis as marked with arrows 7. polyester and chalk thus occur while the molds are rotating. The rotational speed is determined by the running speed of the belt 5. The rotation of the molds is facilitated by the fact that the carriers 2a are provided at their outer ends with rotatably mounted support nipples 2a1. For guiding the molds lh and 1p in their respective positions there are semi-cylindrical guide surfaces 8a, 8b.

För tydlighets skull skall det poängteras, att i nästföljande steg av tillverkningscykeln beñnner sig forrnen la i den station i vilken släppmedel intöres i formen, formen lb, som just beskickats med släppmedel beskickas i nästa station med gelcoat osv. Det rör sig alltså om en kontinuerlig, stegvis och cyklisk tillverkning, där uppehållstiden i varje station är vald på ett optimalt sätt och där lämplig härdningstid för gelcoaten och polyestem uppnås genom att mellan beskickningsstationen för gelcoat resp polyester välja ett lämpligt antal mellanliggande stationer där härdning sker.For the sake of clarity, it should be pointed out that in the next step of the manufacturing cycle, the mold 1a settles in the station in which release agent is introduced into the mold, the mold 1b, which has just been loaded with release agent, is loaded in the next station with gelcoat, and so on. It is thus a continuous, stepwise and cyclic manufacture, where the residence time in each station is selected in an optimal way and where a suitable curing time for the gelcoat and polyester is achieved by choosing between the embarkation station for gelcoat and polyester a suitable number of intermediate stations where curing takes place. .

Beskiclming resp plundring av formama sker som schematiskt visas i fig 2 med hjälp av vagnar 9 vilka kan förflyttas mot och från formama. Beskickningsvagnarna är utrustade med ett i resp form inskjutbart beskickningsrör 10, varvid lOa betecknar beskickningsröret för släppmedel, lOb motsvarande rör för gelcoat medan 10c, l0d och l0e avser beskickningsrören för glasfiber, polyester resp krita. En plundrings- kolv ll är inrättad att skjuta ut den färdiga produkten ur formen.Protection or looting of the molds takes place as schematically shown in Fig. 2 with the aid of carriages 9 which can be moved towards and from the molds. The loading trolleys are equipped with a loading tube 10 which can be pushed in in their respective shape, 10a denoting the loading tube for release agent, 10b corresponding to tubes for gelcoat, while 10c, 10d and 10e refer to the loading tubes for glass, polyester and chalk, respectively. A looting piston ll is arranged to push the finished product out of the mold.

Den stegvis genomförda tillverkningscykeln medger att formama är slutna, alltså avskilda från atmosfären, under större delen av cykeln utom vid beskickning av for- marna. I dessa stationer kan emellertid för miljön skadliga gaser tas om hand med fast installerade utsugningsaggregat. Med den uppfinningsenliga metoden och anord- ningen uppnås alltså en rationell och miljövänlig tillverkning.The step-by-step manufacturing cycle allows the molds to be closed, ie separated from the atmosphere, for most of the cycle, except when loading the molds. In these stations, however, gases harmful to the environment can be disposed of with permanently installed extraction units. With the inventive method and device, a rational and environmentally friendly production is thus achieved.

Uppfinningen kan naturligtvis modifieras på många sätt inom ramen för uppfin- ningstanken. Så kant ex också formamas la-1 g mantelytor bringas till anliggning mot ett transportband liknande transportbandet 5 för att dessa formar skall bibringas en rotation.The invention can, of course, be modified in many ways within the scope of the inventive concept. Thus, for example, the shaped surfaces of the molds 1a-1 g are also brought into abutment against a conveyor belt similar to the conveyor belt 5 in order for these molds to be subjected to a rotation.

Claims (1)

1. IO 15 20 25 91, 509 011 Patentkrav Metod vid tillverkning av en långsträckt, ihålig rotationssymmetrisk produkt såsom en flaggstång varvid åtminstone en långsträckt, rörformíg form (1) successivt beskickas med för tillverkningen nödvändiga resp i produkten ingå- ende material såsom släppmedel, gelcoat, härdplast etc, varvid under åtrnin- stone en del av tillverkningsförloppet forrnen bringas rotera kring sin axel för att slutligen plundras, k ä n n e te c k n a d därav, att ett antal formar (la-lp) i en tillverkningscykel transporteras stegvis mellan beskickningsstationer för de olika materialen, varvid forrnarna (la-lp) efter ett givet tidsintervall förflyttas till nästa station i cykeln och att åtminstone under en förutbestämd del av till- verkningscykeln formarnas cylinderytor bringas i kontakt med minst ett band (5) vars gånghastighet bestämmer formamas (li-lo) rotationshastighet. Anordning för utförande av metoden enligt patentkrav l, innefattande dels organ inrättade att under en tillverkningscykel beskicka åtminstone en lång- sträckt, rörformig form med för tillverkningen nödvändiga och i produkten in- gående utgångsmaterial i förutbestämda mängder resp att plundra formen på den färdiga produkten dels organ (9) inrättade att under åtminstone en del av tillverkningscykeln bringa formen att rotera kring sin axel, k ä n n e t e c k n a d därav, att beskickningsorganen är placerade i ett antal efter varandra anordnade stationer, att anordningen innefattar dels transportorgan (2) inrättade att stegvis i en given ordningsföljd tvärledes förflytta formar mellan beskickningsstatio- nema och för att rotera formarna kring sin resp axel och dels åtminstone en bandtransportör (5) inrättad att vara i kontakt med formarnas cylinderytor och att under nämnda del av tillverkningscykeln genom en förutbestämd gånghas- tighet ge utvalda formar en förutbestämd rotationshastighet. Anordning enligt patentkrav 2, k ä n n e t e c k n a d därav, att nämnda transportorgan är en kedjetransportör med medbringare (2a), i vilka forrnama är roterbart lagrade på inbördes tillnärmelsevis lika avstånd.IO 15 20 25 91, 509 011 Patent method Method of manufacturing an elongate, hollow rotationally symmetrical product such as an fl rod, wherein at least one elongate, tubular shape (1) is successively loaded with materials necessary for the manufacture or included in the product as release agent, gelcoat, thermosetting plastic, etc., during which at least part of the manufacturing process the molds are caused to rotate about their axis to finally be plundered, characterized in that a number of molds (1a-1p) in a manufacturing cycle are transported stepwise between embarkation stations for the different materials, wherein the molds (1a-1p) after a given time interval for fl are moved to the next station in the cycle and that at least during a predetermined part of the manufacturing cycle the cylindrical surfaces of the molds are brought into contact with at least one belt (5) whose walking speed determines the molds. lo) rotational speed. Device for carrying out the method according to claim 1, comprising on the one hand means arranged to provide during an manufacturing cycle at least one elongate, tubular mold with starting material necessary for the manufacture and included in the product in predetermined quantities and to plunder the shape of the finished product and means (9) arranged to cause the mold to rotate about its axis during at least a part of the manufacturing cycle, characterized in that the loading means are located in a number of successively arranged stations, that the device comprises partly transport means (2) arranged to stepwise in a given in order to move the molds transversely between the loading stations and to rotate the molds about their respective axis and at least one belt conveyor (5) arranged to be in contact with the cylindrical surfaces of the molds and to give selected molds during said part of the manufacturing cycle by a predetermined walking speed. predetermined rotational speed. Device according to claim 2, characterized in that said conveying means is a chain conveyor with carriers (2a), in which the molds are rotatably mounted at approximately equal distances from each other.
SE9800206A 1998-01-27 1998-01-27 Method and apparatus for manufacturing an elongated hollow product SE509011C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9800206A SE509011C2 (en) 1998-01-27 1998-01-27 Method and apparatus for manufacturing an elongated hollow product
PCT/SE1999/000083 WO1999037472A1 (en) 1998-01-27 1999-01-21 Method in and arrangement for the manufacture of an elongated, hollow product
AU25547/99A AU2554799A (en) 1998-01-27 1999-01-21 Method in and arrangement for the manufacture of an elongated, hollow product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800206A SE509011C2 (en) 1998-01-27 1998-01-27 Method and apparatus for manufacturing an elongated hollow product

Publications (3)

Publication Number Publication Date
SE9800206D0 SE9800206D0 (en) 1998-01-27
SE9800206L SE9800206L (en) 1998-11-23
SE509011C2 true SE509011C2 (en) 1998-11-23

Family

ID=20409976

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800206A SE509011C2 (en) 1998-01-27 1998-01-27 Method and apparatus for manufacturing an elongated hollow product

Country Status (3)

Country Link
AU (1) AU2554799A (en)
SE (1) SE509011C2 (en)
WO (1) WO1999037472A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL32792A0 (en) * 1968-08-23 1969-11-12 Pellicer C A process for the manufacture of tubes of plastic material,a plant for their production and the tube obtained
US4007075A (en) * 1973-12-10 1977-02-08 Cascade Pole Company Method of making a fiberglass pole
DE3368890D1 (en) * 1982-08-17 1987-02-12 Glasdon Ltd Manufacture of flagpoles and the like

Also Published As

Publication number Publication date
SE9800206L (en) 1998-11-23
WO1999037472A1 (en) 1999-07-29
SE9800206D0 (en) 1998-01-27
AU2554799A (en) 1999-08-09

Similar Documents

Publication Publication Date Title
EP0173818B1 (en) Preparation of hollow plastic articles
US4522581A (en) System for handling partly finished workpieces
ZA927789B (en) Apparatus and two stage method for substantially reducing can spacing and speed to match those of deco chain pins
DE2704657C2 (en) Apparatus for blow molding oriented containers
FI66307B (en) FOERFARANDE FOER FRAMSTAELLNING AV IHAOLIGA KROPPAR AV EN THERMOPLAST
EP0920974A2 (en) Non-round container blow molding method apparatus
PT84758A (en) METHOD AND APPARATUS FOR MANUFACTURING PNEUMATIC REINFORCEMENTS
US4808366A (en) In-mold labeling of injection blow molded hollow plastic articles
ES2055812T3 (en) METHOD FOR APPLYING A COATING TO A SURFACE OF CYLINDRICAL OBJECTS AS WELL AS A DEVICE FOR THE SAME.
JP2007510612A (en) Method and apparatus for producing curved glass sheets
US10375987B2 (en) Centering device for rod-shaped articles of the tobacco industry
SE509011C2 (en) Method and apparatus for manufacturing an elongated hollow product
CN106925474A (en) A kind of machine tube inner wall alloy coat equipment
CN215242794U (en) Device for processing plastic preforms by means of a preform sorting device
EP0846544A1 (en) Blow moulding machine with transporting means which also change the distance between the preforms
US3074605A (en) Pipe wrapping device
DE19906308A1 (en) Preform holding arrangement on a blow molding machine, has a transporting system with carriers each with interlocking holders for two or more preforms
US2800872A (en) High speed collapsible tube finishing machine
ES444086A1 (en) Apparatus for the continuous production of oriented hollow bodies from a thermoplastic material
DE2056617A1 (en) Handling hollow thermoplast mouldings - before blowing into bottles
FI65572C (en) FRAMEWORK FOR CONTAINING CONTAINER FRAMSTAELLNING AV ISOLERINGSKOKILLER
JPS57205132A (en) Bead locking device of tire forming drum
US4055142A (en) Method and apparatus for performing a plurality of sequential operations upon each of a series of articles
US4073847A (en) Multi-stage blow holding method
US3431596A (en) Dip molding apparatus-double conveyor

Legal Events

Date Code Title Description
NUG Patent has lapsed