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NO802153L - WELDING APPARATUS FOR CONNECTING AN ARTIFICIAL WOMAN WITH A MUFF - Google Patents

WELDING APPARATUS FOR CONNECTING AN ARTIFICIAL WOMAN WITH A MUFF

Info

Publication number
NO802153L
NO802153L NO802153A NO802153A NO802153L NO 802153 L NO802153 L NO 802153L NO 802153 A NO802153 A NO 802153A NO 802153 A NO802153 A NO 802153A NO 802153 L NO802153 L NO 802153L
Authority
NO
Norway
Prior art keywords
heating
heating device
thermocouple
welding apparatus
plastic pipe
Prior art date
Application number
NO802153A
Other languages
Norwegian (no)
Inventor
Karl Bemelmann
Hubert Koch
Norbert Jablonsky
Siegfried Lenck
Original Assignee
Messer Griesheim Gmbh
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 Messer Griesheim Gmbh filed Critical Messer Griesheim Gmbh
Publication of NO802153L publication Critical patent/NO802153L/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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91231—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the joining tool
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Control Of Resistance Heating (AREA)

Description

Foreliggende oppfinnelse vedrører et sveiseapparat for tilveiebringelse av en forbindelse mellom et kunststoffrør og en muffe, henholdsvis et andre kunststoffrør, hvilket appa-rat består av et hus som opptar en elektrisk styreinnretning, The present invention relates to a welding apparatus for providing a connection between a plastic pipe and a sleeve, respectively a second plastic pipe, which apparatus consists of a housing that houses an electrical control device,

på hvis overside det er anordnet en oppvarmingsinnretning inklusive de derpå anordnede oppvarmingselementer for opptak av det kunststoffrør, henholdsvis muffen som skal mykgjøres, samt med et termoelement som overvåker temperaturen til oppvarmingsinnretningen. on the upper side of which a heating device is arranged, including the heating elements arranged thereon for receiving the plastic pipe, respectively the sleeve to be softened, as well as with a thermocouple that monitors the temperature of the heating device.

Sveiseapparater for kunststoffsveising av den oven-nevnte type er allerede i lang tid kjent. Den på apparatets husoverside anordnede, elektrisk drevne oppvarmingsinnretning består av en oppvarmingsboks, i hvilken det kunststoffrør som skal mykgjøres skyves inn, og av en oppvarmingsstuss for opptak av muffen, henholdsvis det eventuelle andre kunststoffrør. Welding devices for plastic welding of the above-mentioned type have already been known for a long time. The electrically powered heating device arranged on the upper side of the device's housing consists of a heating box, into which the plastic pipe to be softened is pushed in, and of a heating nozzle for receiving the sleeve, respectively the other plastic pipe, if any.

For gjennomføring av sveisingen blir oppvarmingselementene oppvarmet til ca. 2 6 0°C og deretter innføres enden til røret i oppvarmingsboksens indre rom til et anslag, mens samtidig muffen skyves over oppvarmingsstussene til anlegg mot et 'anslag. Derved blir øøret mykgjort utvendig og muffen inn-vendig. Etter avtrekking av rør og muffe fra oppvarmingsele-mentehe blir de to deler skjøvet inn i hverandre, hvorved en allsidig sammensveising opptrer mellom rør og muffe. To carry out the welding, the heating elements are heated to approx. 2 6 0°C and then the end of the tube is introduced into the inner space of the heating box to a stop, while at the same time the sleeve is pushed over the heating nozzles to abut against a stop. Thereby, the ear is softened on the outside and the sleeve on the inside. After removing the pipe and socket from the heating element, the two parts are pushed into each other, whereby a versatile welding occurs between the pipe and socket.

Det til oppvarmingsinnretningen tilordnede termoelement tjener til å holde den nødvendige sveisetemperatur innenfor et bestemt område på en konstant verdi. Da termoelementet imidlertid er anordnet i oppvarmingsinnretningen, består det fare for at ved ytre påvirkning, f. eks. vind, de fremstående oppvarmingselementer avkjøles sterkere enn oppvarmingsinnret-iningen. Derved kan det forekomme at det ved oppvarmingselementene ikke mer hersker den nødvendige sveisetemperatur, mens termoelementet på grunn av den fremdeles høyere temperatur i oppvarmingsinnretningen enda ikke har reagert. The thermocouple assigned to the heating device serves to keep the required welding temperature within a certain range at a constant value. However, since the thermocouple is arranged in the heating device, there is a risk that external influences, e.g. wind, the protruding heating elements cool more strongly than the heating device. As a result, it may happen that the required welding temperature no longer prevails at the heating elements, while the thermocouple has not yet reacted due to the still higher temperature in the heating device.

Den oppgave som derfor ligger til grunn for oppfinn-jeisen er å utforme et sveiseapparat av den innledningsvis nevnte type på en slik måte at en ytre, temperaturbetinget påvirkning av termoelementet foregår i like stor grad også ved oppvarmings elementene, slik at det ikke mer er fare for en feilreguler-ing. The task that is therefore the basis of the invention is to design a welding apparatus of the type mentioned at the outset in such a way that an external, temperature-related influence of the thermocouple takes place to the same extent also at the heating elements, so that there is no longer any danger for an error regulator.

Denne oppgave blir løst ifølge oppfinnelsen ved at termoelementet er anordnet ved et slikt sted på oppvarmingsinnretningen at det er utsatt for værpåvirkninger (sol, regn, vind etc.) i samme grad som oppvarmingselementene. This task is solved according to the invention in that the thermocouple is arranged at such a place on the heating device that it is exposed to weather influences (sun, rain, wind etc.) to the same degree as the heating elements.

Ved den foretrukkede utførelsesform for oppfinnelsen er det fordelaktig hvis oppvarmingsinnretningen er utformet som en blokk, hvis ene sidekant er slik avskrånet at det forblir et utragende steg, i hvilket termoelementet er anbragt. Herved er det særlig fordelaktig hvis avstanden "D" mellom termoelement og den avskrånede flate på den blokkformede oppvarmingsinnretning er omtrent lik avstanden "D" mellom berør-ingsflatene mellom oppvarmingselement, henholdsvis oppvarmingsinnretning og midtdelen av oppvarmingsflaten til opp<y>armings-elementet. In the preferred embodiment of the invention, it is advantageous if the heating device is designed as a block, one side edge of which is so bevelled that there remains a protruding step in which the thermocouple is placed. Hereby, it is particularly advantageous if the distance "D" between the thermocouple and the beveled surface of the block-shaped heating device is approximately equal to the distance "D" between the contact surfaces between the heating element, respectively the heating device and the middle part of the heating surface of the arming element.

Ved den foretrukkede utførelsesform for oppfinnelsen tilsvarer herved midtavsnittet den midtliirij.é.i.som hal'- • verer lengden for den virksomme oppvarmingsflate. In the preferred embodiment of the invention, the middle section corresponds to the middle section which halves the length of the effective heating surface.

Ved hjelp av "frileggingen" ifølge oppfinnelsen av termoelementet ved dets anordning i et fra den blokkformede oppvarmingsinnretning fremstående steg, er termoelementet.. i samme grad utsatt for værpåvirkninger (vind, regn, kulde, sol etc.) som de likeledes fra oppvarmingsinnretningen fremstående oppvarmingselementer. På grunn av den like påvirkning av termoelement og oppvarmingselement av værpåvirkningen, er det således på fordelaktig måte sikret at en temperaturforandring ved oppvarmingselementene i samme grad også skjer i området ved termoelementet. Derved er det sikret en nøyaktig regulering av den nødvendige oppyarmingstemperatur ved hjelp av termoelementet . By means of the "exposing" according to the invention of the thermocouple by its arrangement in a step protruding from the block-shaped heating device, the thermocouple is exposed to weather influences (wind, rain, cold, sun etc.) to the same degree as the heating elements also protruding from the heating device . Due to the equal influence of thermocouple and heating element by the weather, it is thus advantageously ensured that a temperature change at the heating elements also occurs in the area of the thermocouple to the same degree. This ensures an accurate regulation of the required heating temperature with the help of the thermocouple.

Den følgende beskrivelse av en foretrukket utførel-sesform for oppfinnelsen tjener i sammenheng med tegningen til en videre forklaring av oppfinnelsen. Tegningen viser: fig. 1 et sideriss, delvis i snitt av et sveiseapparat ifølge oppfinnelsen, The following description of a preferred embodiment of the invention serves in conjunction with the drawing for a further explanation of the invention. The drawing shows: fig. 1 a side view, partly in section of a welding apparatus according to the invention,

fig. 2 et riss sett fra venstre på fig. 1, og fig. 2 a view seen from the left in fig. 1, and

fig. 3 et delriss til fig. 1. fig. 3 a partial view of fig. 1.

Det på tegningen viste kunststoffsveiseapparat 10 har et hus 12, i hvis indre (ikke vist) det er anordnet en elektrisk styreinnretning. Over en tilkoblingsledning 14 er sveiseapparatet 10 forbundet med strømnettet. For fastholding av sveiseapparatet totalt er det anordnet en grunnplate 16 The plastic welding apparatus 10 shown in the drawing has a housing 12, in the interior of which (not shown) an electrical control device is arranged. The welding device 10 is connected to the mains via a connection cable 14. A base plate 16 is arranged to hold the welding apparatus as a whole

med et dertil festet håndtak 18. with a handle 18 attached thereto.

Som det spesielt fremgår av fig. 2, er oversiden As can be seen in particular from fig. 2, is the upper side

av huset 12 med mellomplassering av en avstandsplate 22 ut-styrt med en oppvarmingsinnretning 20. Oppvarmingsinnretningen 20 består av en firkantet blokk av et godt varmeledende materiale og har to langsgående boringer for opptak av oppvarmingspatroner 24. Disse oppvarmingspatroner er forbundet med styreinnretningen (i huset 12) og tjener til oppvarming av oppvarmingsinnretningen 20. of the housing 12 with intermediate placement of a spacer plate 22 equipped with a heating device 20. The heating device 20 consists of a square block of a good heat-conducting material and has two longitudinal bores for receiving heating cartridges 24. These heating cartridges are connected to the control device (in the housing 12 ) and serves for heating the heating device 20.

For å kunne fastslå om den for sveiseprosessen nød-vendige temperatur også foreligger, er den blokkformede oppvarmingsinnretning 20 tilordnet et termometer 26. In order to be able to determine whether the temperature necessary for the welding process also exists, the block-shaped heating device 20 is assigned a thermometer 26.

Ved de motsatt liggende breddesider av oppvarmingsinnretningen 20 er det ved hjelp av en gjennomgående skrufor-bindelse 28 anordnet en oppvarmingsboks 3 0 og en oppvarmingsstuss 32. I oppvarmingsboksen 30 blir kunststoffrøret skjøvet inn, og på oppvarmingsstussen 32 skyves muffen, henholdsvis et andre kunststoffrør på og oppvarmes så lenge til kunststoffet er mykgjort, hvoretter sveisingen foretas ved sammenstikking av disse to deler. Fig. 1 viser at oppvarmingselementene 30, At the opposite width sides of the heating device 20, a heating box 30 and a heating connection 32 are arranged by means of a continuous screw connection 28. In the heating box 30, the plastic pipe is pushed in, and on the heating connection 32, the sleeve is pushed, respectively a second plastic pipe on and is heated until the plastic is softened, after which the welding is carried out by joining these two parts. Fig. 1 shows that the heating elements 30,

32 ved sin mot oppvarmingsinnretningen 20 vendte side har en sirkelformet krave 34, som hver er opptatt av et ringspor 36 32 on its side facing the heating device 20 has a circular collar 34, each of which is occupied by an annular groove 36

i breddesidene til oppvarmingsinnretningen 20. Som vist har oppvarmingselementene 30, 32 og oppvarmingsinnretningen 20 respektive felles berøringsflater 38, 40, ved hjelp av hvilke varmeoverføringen fra oppvarmingspatronene 24 over oppvarmingsinnretningen 20 videreføres til de av det samme godt varmeledende materiale som oppvarmingsinnretningen fremstilte oppvarmingselementer 30, 32. in the width sides of the heating device 20. As shown, the heating elements 30, 32 and the heating device 20 have respective common contact surfaces 38, 40, by means of which the heat transfer from the heating cartridges 24 over the heating device 20 is continued to the heating elements 30, 32 made of the same heat-conducting material as the heating device .

Som det videre fremgår av fig. 1, er de to berør-ingsflater 4 0 trukket tilbake i forhold til oppvarmingsinnret- ningens::20 kontur på fordelaktig måte om en størrelse B. Det samme gjelder analogt også for berøringsflatene 38 til oppvarmingselementene 30, 32, som på grunn av tilstedeværelse av kra-ven 34 likeledes er anordnet innenfor konturen til oppvarmingselementene . As further appears from fig. 1, the two contact surfaces 40 are pulled back in relation to the contour of the heating device::20 advantageously by a size B. The same also applies analogously to the contact surfaces 38 of the heating elements 30, 32, which due to the presence of the collar 34 is also arranged within the contour of the heating elements.

På grunn av denne gunstige anordning av berørings-flatene 38, 4 0 innenfor konturen til oppvarmingselementet 30, Due to this favorable arrangement of the contact surfaces 38, 40 within the contour of the heating element 30,

32, henholdsvis oppvarmingsinnretningen 20, er det sikret at det ikke oppstår noen beskadigelse (f. eks. riper) på de på denne måte spesielt beskyttede, meget nøyaktig bearbeidede og derforømfindtlige berøringsflater, idet ellers varmeovergangen fra oppvarmingsinnretningatil oppvarmingselement ville bli re-dusert . 32, respectively the heating device 20, it is ensured that no damage (e.g. scratches) occurs on the specially protected, very precisely processed and therefore sensitive contact surfaces in this way, as otherwise the heat transfer from the heating device to the heating element would be reduced.

Av tegningen fremgår det at oppvarmingsinnretningen 20 har form av en firkantet blokk, hvis ene øvre hjørnekant ifølge oppfinnelsen under bibeholdelse av et utragende steg 4 2 er avskrånet. I utførelseseksemplet er det anordnet to avskrånede flater 44, mellom hvilke i midten steget 42 er anordnet. From the drawing, it appears that the heating device 20 has the shape of a square block, one upper corner edge of which according to the invention is chamfered while maintaining a projecting step 4 2 . In the design example, two beveled surfaces 44 are arranged, between which the step 42 is arranged in the middle.

Dette utragende steg 4 2 tjener til opptak av et termoelement 46, som over en boring 48 er forbundet med den i huset 12 anbragte styreinnretni.ng. This projecting step 4 2 serves to receive a thermocouple 46, which is connected via a bore 48 to the control device placed in the housing 12.

Termoelementet 4 6 er anordnet i en avstand D fra den avskrånede flate 44 i steget 42. Som fig. 1 viser, er strekningen L (= lengden), til oppvarmingsf laten 50 halvert av oppvarmingsboksen 30, henholdsvis oppvarmingsstussen 32 ved hjelp av en midtlinje 52. Av denne ved hjelp av midtlinjen 52 defi-nerte midtdel for den virksomme oppvarmingsflate 50 i forhold til berøringsflatene 38, henholdsvis 40, fremkommer likeledes omtrent den samme avstand D som for termoelementet 4 6 i forhold til den avskrånede flate 44. Dette betyr at avstanden D mellom termoelementet og den avskrånede flate er lik eller til-nærmet lik avstanden D mellom midtlinje og berøringsflater. The thermocouple 4 6 is arranged at a distance D from the chamfered surface 44 in the step 42. As fig. 1 shows, the length L (= the length) of the heating surface 50 is halved by the heating box 30, respectively the heating nozzle 32 by means of a center line 52. From this, by means of the center line 52, the middle part of the effective heating surface 50 is defined in relation to the contact surfaces 38, respectively 40, likewise appears approximately the same distance D as for the thermocouple 4 6 in relation to the chamfered surface 44. This means that the distance D between the thermocouple and the chamfered surface is equal or nearly equal to the distance D between the center line and contact surfaces.

Ved igangsetting av sveiseapparatet biir ved-Uhjelp'av oppvarmingspatronene 24 først den blokkformede oppvarmingsinnretning 20 oppvarmet. Over berøringsflatene 40 når varmen til oppvarmingselementene 30, 32 (= berøringsflatene 38), som etter en kort oppvarmingstid likeledes har den for sveisingen nødven- When starting up the welding apparatus, the block-shaped heating device 20 is first heated without the aid of the heating cartridges 24. Above the contact surfaces 40, the heat reaches the heating elements 30, 32 (= contact surfaces 38), which, after a short heating time, also have the necessary

dige temperatur som kan avleses på termometeret 26. proper temperature that can be read on the thermometer 26.

Som det fremgår av tegningen er oppvarmingselementene 30, 32 fremstående deler, som er spesielt sterkt utsatt for påvirkninger fra omgivelsene. Således kan f. eks. ved sol-bestråling temperaturen ved oppvarmingselementene stige over den ønskede størrelse, henholdsvis ved regn, vind kan det foregå en avkjøling av oppvarmingselementene til en verdi som ligger under den krevede sveisetemperatur. Disse temperaturav-vikelser blir ikke registrert av termometeret. For å opprett-holde konstant en hele tiden nøyaktig sveisetemperatur, f. eks. 260°C,ved oppvarmingselementene, er det nødvendig å utligne påvirkningene fra omgivelsene (sol = ekstra oppvarming, vind/ regn = avkjøling). Dette skjer ved hjelp av termoelementet 46, som ifølge oppfinnelsen - som beskrevet ovenfor - er anordnet på det utragende steg 42. Ved hjelp av denne "frie" anordning av termoelementet..42 er dette i like stor grad som oppvarmingselementene utsatt for påvirkning fra omgivelsene, dvs. en ekstra oppvarming som foregår ved oppvarmingselementene vil med. Iden samme intensitet også. foregå ved steget 42 og dermed ved termoelementet. Analogt skjer dette også ved avkjølingen. As can be seen from the drawing, the heating elements 30, 32 are protruding parts, which are particularly strongly exposed to influences from the environment. Thus, e.g. in the event of solar radiation, the temperature at the heating elements rises above the desired value, respectively in the case of rain, wind, a cooling of the heating elements can take place to a value that is below the required welding temperature. These temperature deviations are not recorded by the thermometer. In order to maintain a constantly accurate welding temperature, e.g. 260°C, at the heating elements, it is necessary to compensate for the influences from the surroundings (sun = additional heating, wind/rain = cooling). This takes place with the help of the thermocouple 46, which according to the invention - as described above - is arranged on the projecting step 42. With the help of this "free" arrangement of the thermocouple...42, this is to the same extent as the heating elements exposed to influence from the environment , i.e. an additional heating that takes place at the heating elements will be included. At the same intensity as well. take place at step 42 and thus at the thermocouple. Analogously, this also happens during cooling.

Da jo den fremre ende av oppvarmingsflaten 50 er utsatt noe sterkere, selv om også i liten grad, for påvirkninger fra omgivelsene enn den indre ende, ble ifølge oppfinnelsen valgt den midlere avstand mellom oppvarmingsflate og berør-ingsflate 38, som er definert ved hjelp av midtlinjen 52 for strekningen L (= oppvarmingsflatelengde). Temperaturforskjel-len fra dette midtavsnitt 52:.til den indre,.^henholdsvis ytre ende av oppvarmingsflaten ligger ved ca. 1°C og er enda innenfor rammen for toleranseverdiene. Since the front end of the heating surface 50 is somewhat more exposed, although also to a small extent, to influences from the environment than the inner end, according to the invention the average distance between the heating surface and the contact surface 38 was chosen, which is defined by means of the center line 52 for the stretch L (= heating surface length). The temperature difference from this middle section 52 to the inner, respectively outer end of the heating surface is at approx. 1°C and is still within the limits of the tolerance values.

Ved hjelp av den ifølge oppfinnelsen eksponerte anordning av termoelementet 4 6 ved et utragende steg 42 og i forbindelse med avstanden D til den avskrånede flate 44 på oppvarmingsinnretningen, som er lik eller omtrent lik avstanden D mellom midtlinjen 52..og berøringsflaten 38, 40, skjer på fordelaktig måte en nøyaktig styring av oppvarmingstemperaturen ved hjelp av termoelementet, da såvel ved oppvarmingselementet som også ved steget det vil opptre den samme omgivelsesbetinge-dé påvirkning av intensiteten. By means of the inventively exposed arrangement of the thermocouple 46 at a projecting step 42 and in connection with the distance D to the beveled surface 44 of the heating device, which is equal or approximately equal to the distance D between the center line 52...and the contact surface 38, 40, an accurate control of the heating temperature by means of the thermoelement takes place in an advantageous manner, as both at the heating element and at the step the same environmental conditions will affect the intensity.

Claims (5)

1. Sveiseapparat for tilveiebringelse av en forbindelse mellom et kunststoffrør og en muffe, henholdsvis et andre kunst-stoff rør, bestående av et hus som opptar den elektriske styreinnretning, på hvis overside det er anordnet en oppvarmingsinnretning inklusive de derpå anordnede oppvarmingselementer for opptak av det kunststoffrør, henholdsvis den muffe som skal mykgjøres, samt et termoelement som overvåker temperaturen for oppvarmingsinnretningen,karakterisert vedat termoelementet (46) er anordnet på et slikt sted (42) på oppvarmingsinnretningen (20) at det utsettes for værpåvirkninger (sol, regn, vind etc.) i samme grad som oppvarmingselementene (30, 32).1. Welding apparatus for providing a connection between a plastic pipe and a sleeve, respectively a second plastic pipe, consisting of a housing that accommodates the electrical control device, on the upper side of which a heating device is arranged including the heating elements arranged thereon for receiving the plastic pipe, respectively the sleeve to be softened, as well as a thermocouple that monitors the temperature of the heating device, characterized in that the thermocouple (46) is arranged in such a place (42) on the heating device (20) that it is exposed to weather influences (sun, rain, wind etc. .) to the same extent as the heating elements (30, 32). 2. Sveiseapparat ifølge krav 1,karakterisert vedat oppvarmingsinnretningen (20) er utformet som en blokk, hvis ene sidekant er slik avskrånet at det gjenstår et utragende steg (42), i hvilket termoelementet (46) er anbragt.2. Welding apparatus according to claim 1, characterized in that the heating device (20) is designed as a block, one side edge of which is so chamfered that a protruding step (42) remains, in which the thermocouple (46) is placed. 3. Sveiseapparat ifølge krav 1 og/eller 2,karakterisert vedat avstanden (D) mellom termoelementet (46) og den avskrånede flate (44) på den blokkformede oppvarmingsinnretning (20) er omtrent lik avstanden (D) mellom berør-ingsflatene (38, 40) på oppvarmingse3jemen.tené,x(.3 0 ,-32) .,.-hen- "v-holdsvis oppvarmingsinnretningen (20) og midtdelen (52) til oppvarmingsflaten (50) til oppvarmingselementet (30, 32).3. Welding apparatus according to claim 1 and/or 2, characterized in that the distance (D) between the thermocouple (46) and the chamfered surface (44) on the block-shaped heating device (20) is approximately equal to the distance (D) between the contact surfaces (38, 40) on the heating element, x(.3 0 ,-32) .,.-hen- "v-respectively the heating device (20) and the middle part (52) of the heating surface (50) of the heating element (30, 32). 4. Sveiseapparat ifølge krav 3,karakterisert vedat midtdelen til lengden ,(L) for den virksomme oppvarmingsflate (50) svarer til den halverende midtlinje (52).4. Welding apparatus according to claim 3, characterized in that the middle part of the length, (L) of the effective heating surface (50) corresponds to the halving center line (52). 5. Sveiseapparat ifølge ett av de foranstående krav,karakterisert vedat berøringsflaten (38, 40) er tilbaketrukket i forhold til konturen til oppvarmingselementet (30, 32), henholdsvis oppvarmingsinnretningen (20).5. Welding apparatus according to one of the preceding claims, characterized in that the contact surface (38, 40) is retracted in relation to the contour of the heating element (30, 32), respectively the heating device (20).
NO802153A 1979-08-13 1980-07-17 WELDING APPARATUS FOR CONNECTING AN ARTIFICIAL WOMAN WITH A MUFF NO802153L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2932804A DE2932804C2 (en) 1979-08-13 1979-08-13 Welding device for connecting a plastic pipe with a socket

Publications (1)

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NO802153L true NO802153L (en) 1981-02-16

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Application Number Title Priority Date Filing Date
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AT (1) ATA329080A (en)
BE (1) BE884243A (en)
DE (1) DE2932804C2 (en)
FR (1) FR2462986A1 (en)
IT (1) IT1131863B (en)
NL (1) NL8004106A (en)
NO (1) NO802153L (en)
SE (1) SE8005509L (en)

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Publication number Priority date Publication date Assignee Title
CH675698A5 (en) * 1988-11-01 1990-10-31 Fischer Ag Georg
DE4416518A1 (en) * 1994-05-10 1995-11-16 Armin Dommer Device for the frontal welding of plastic profiles, in particular pipes
RU2217310C2 (en) * 2000-03-20 2003-11-27 Смыслов Игорь Иванович Hand-operated posistor pipe welder
RU2178356C1 (en) * 2000-06-27 2002-01-20 Волгоградский государственный технический университет Device for resistance welding of plastic pipes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158821A (en) * 1960-05-13 1964-11-24 James Knights Company Oven for piezoelectric crystals
US3147794A (en) * 1963-06-10 1964-09-08 Tube Turns Plastics Inc Heating tool for use in joining thermoplastic articles
CH518790A (en) * 1970-01-22 1972-02-15 Gebert & Cie Process for achieving a practically constant final temperature when connecting plastic molded parts by means of electrically heatable plastic fittings and a control device for carrying out the process
DE2212055C3 (en) * 1972-03-13 1979-01-25 Alfred Dipl.-Ing. 7250 Leonberg Ruehle Device for welding coaxial pipes made of thermoplastic material
DE2241657B1 (en) * 1972-08-24 1973-08-23 Ctc Gmbh, 2000 Hamburg Welding process and device for producing a permanent connection between a plastic pipe and a plastic sleeve

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BE884243A (en) 1980-11-03
FR2462986A1 (en) 1981-02-20
IT8023114A0 (en) 1980-06-30
SE8005509L (en) 1981-02-14
NL8004106A (en) 1981-02-17
IT1131863B (en) 1986-06-25
DE2932804A1 (en) 1981-03-26
DE2932804C2 (en) 1984-11-22
ATA329080A (en) 1985-12-15

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