US3499816A - Apparatus for enclosing a resistance wire tape between flat sections of insulating ceramic paste compound - Google Patents

Apparatus for enclosing a resistance wire tape between flat sections of insulating ceramic paste compound Download PDF

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Publication number
US3499816A
US3499816A US461091A US3499816DA US3499816A US 3499816 A US3499816 A US 3499816A US 461091 A US461091 A US 461091A US 3499816D A US3499816D A US 3499816DA US 3499816 A US3499816 A US 3499816A
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United States
Prior art keywords
compound
tape
strand
enclosing
resistance wire
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US461091A
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English (en)
Inventor
Carl Otto Areskoug
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INSTALLATIONSMATERIEL AB
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INSTALLATIONSMATERIEL AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/002—Producing shaped prefabricated articles from the material assembled from preformed elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/04—Bending or folding of plates or sheets
    • B29C53/043—Bending or folding of plates or sheets using rolls or endless belts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/02—Apparatus or processes specially adapted for manufacturing resistors adapted for manufacturing resistors with envelope or housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
    • H05K13/003—Placing of components on belts holding the terminals
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/685—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates
    • B29C70/687—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates the inserts being oriented, e.g. nets or meshes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53126—Means to place sheath on running-length core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor

Definitions

  • a ceramic insulation paste material is continuously split into two moving flat parallel sections while emerging from a nozzle, a tape of resistance wire is inserted between, and moved along with, the insulation sections. The sections are then squeezed together enclosing the resistance wire.
  • the present invention relates to arrangements for applying, for example, a ceramic compound about a fiat structure. It is known in prior art when manufacturing ceramic resistors to embed a tape in between two strands of a ceramic compound on which tape the resistance filament units of the resistor to be made are arranged. As a rule, the two strands are provided to be extruded, each from a separate nozzle on either side of the flat tape planar structure. However, this entails a number of drawbacks with respect to the extrusion through the nozzles of the ceramic compound, since it is extremely difficult to achieve any uniform extrusion owing, for example to varying viscosity of the ceramic compounds. The present invention has for its object to avoid the said drawbacks.
  • An arrangement according to the present invention is substantially characterized in that a nozzle is provided to form a strand of a ceramic compound, the compound strand close to the outlet end of the nozzle being arranged to be split into two strand halves, which are to pass on either side of the tape structure and then rolled together while enclosing the tape structure.
  • a further arrangement according to the invention is characterized substantially in that a nozzle is of such a shape as to form a compound strand which is substantially V-shaped, the legs of the compound strand being arranged to be compressed while enclosing a tape structure in between the said legs.
  • FIG. 1 is a perspective view of an embodiment according to the invention.
  • FIG. 2 illustrates another embodiment in a perspective view.
  • the arrangement shown in FIG. 1 comprises a nozzle 50 shaping and delivering a strand of a ceramic compound.
  • Adjacent to the orifice of the nozzle a steel wire 52 is provided, which is clamped in a U-shaped fitting 53.
  • the said steel wire splits the compound strand 51 into two strand halves 54, 55, which are separately made to run over a first couple of rollers 56, 57, respectively.
  • Thence the strand halves 54 and 55 each run over a couple of rollers 58, 59, respectively.
  • a tape 3 of resistance units passes over two idlers 62, 63. From the idler 63 the tape is fed in between the two rollers 60 and 61, the tape thus lying between the two strand halves 54, 55.
  • the strand halves and the resistance tape will then pass in between the rolls 26, 27 to be compressed into a unitary strand 30'.
  • FIG. 2 comprises a nozzle 64 of Vshape having two legs 65, 66.
  • the nozzle delivers a strand of a ceramic compound formed in a corresponding way with two legs 67, 68.
  • a tape 3 of resistance units 3, as shown in FIG. 1, is by means of the legs 65, 66 of the nozzle 64 fed in between the said legs and preferably in parallel with the horizontal leg 66.
  • the resistance tape will then rest on the leg 68 of the compound leg while being fed towards the rolls 26, 27.
  • the tape rests on the leg 68, but it should, however, be parallel to the same just before entering between the rolls 26, 27.
  • leg 67 of the compound strand will then come into touch with the cylindrical face 29 of the roll 27 and be rolled down towards the leg 68 and compressed between the said rolls into a common material strand 30.
  • two uniform strand halves of a ceramic compound are achieved in a very simple manner, it being easy to roll together the same, while they do not require any directed guiding means to make them land one right on top of the other to be rolled together, as the legs 67, 68 are all the time interconnected at their base portion.
  • An apparatus for enclosing a plurality of planar resistance wire convolutions with an insulating ceramic paste compound jacket comprising: extruding means including a container for the compound having a single nozzle opening; means located near and in the path of the nozzle for uniformity dividing the compound into two continuous fiat portions having rough opposing surfaces and diverging from one another in a Vshaped configuration; means located downstream of the dividing means for guiding the two portions along spaced apart longitudinally and laterally parallel paths; means for continuously conveying the planar wire convolutions along a path both longitudinally and laterally parallel to, and in between of, the compound portions; rejoining means located downstream of the guiding and conveying means for applying pressure perpendicular to both the longitudinal and lateral directions of the compound portions and the planar wire convolutions; whereby the compound will be extruded, divided at a uniform rate without creasing the two portions, then rejoined together completely around the wire convolutions.
  • the conveying means comprises first and second cylindrical rollers located between said portions with said first 3 4 roller nearer said dividing means and said second roller 2,744,041 5/1956 Balchen 156-244 XR nearer said rejoining means, each of said rollers having 3,082,292 3/1963 Gore 264175XR its axis of rotation perpendicular to each other and to the 3,068,135 12/1962 Bower 156436 XR longitudinal direction with a tangential direction of the 1,846,325 2/1932 Fischer 156-50O XR cylindrical surface of said second roller that is perpendicular to its axis is parallel to the longitudinal direction; whereby said planar tape is fed between converging and PHILIP DIER, Primary Examiner diverging portions of said insulator from a direction lat- 3,332,825 7/1967 Krylon et a1. 156-436 eral thereto. US. Cl. X.R.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
  • Making Paper Articles (AREA)
US461091A 1964-06-04 1965-06-03 Apparatus for enclosing a resistance wire tape between flat sections of insulating ceramic paste compound Expired - Lifetime US3499816A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE682164 1964-06-04

Publications (1)

Publication Number Publication Date
US3499816A true US3499816A (en) 1970-03-10

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Application Number Title Priority Date Filing Date
US461091A Expired - Lifetime US3499816A (en) 1964-06-04 1965-06-03 Apparatus for enclosing a resistance wire tape between flat sections of insulating ceramic paste compound

Country Status (5)

Country Link
US (1) US3499816A (da)
AT (1) AT253623B (da)
DK (1) DK108870C (da)
GB (1) GB1112299A (da)
NL (1) NL6507067A (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915780A (en) * 1973-08-02 1975-10-28 Texas Instruments Inc Extruded epoxy packaging system
US4368089A (en) * 1981-09-30 1983-01-11 Colgate-Palmolive Company Method and apparatus for manufacturing dentifrice containing dispersed speckles
US4464218A (en) * 1983-04-18 1984-08-07 Flex-O-Lators, Inc. Method for reinforcing net materials
US4525230A (en) * 1981-03-27 1985-06-25 General Electric Company Method of manufacturing a ballast resistor support member
US4540533A (en) * 1982-10-29 1985-09-10 U.S. Philips Corporation Method of encapsulating electronic components by extrusion of plastic material
US20080105380A1 (en) * 2000-12-08 2008-05-08 Toyota Motor Sales, U.S.A., Inc. System for molding composite structures

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US287699A (en) * 1883-10-30 meekee
US1846325A (en) * 1930-02-19 1932-02-23 Albert C Fischer Apparatus and method for making composition strips
US2204782A (en) * 1936-04-13 1940-06-18 Belden Mfg Co Method and apparatus for making electric conductor cord
US2744041A (en) * 1955-06-06 1956-05-01 Us Rubber Co Adhesive sheeting
US3068135A (en) * 1956-02-27 1962-12-11 Gerald C Bower Method for making wire reinforced fabric
US3082292A (en) * 1957-09-30 1963-03-19 Gore & Ass Multiconductor wiring strip
US3332825A (en) * 1964-06-05 1967-07-25 Automatic Elect Lab Twistor encapsulator machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US287699A (en) * 1883-10-30 meekee
US1846325A (en) * 1930-02-19 1932-02-23 Albert C Fischer Apparatus and method for making composition strips
US2204782A (en) * 1936-04-13 1940-06-18 Belden Mfg Co Method and apparatus for making electric conductor cord
US2744041A (en) * 1955-06-06 1956-05-01 Us Rubber Co Adhesive sheeting
US3068135A (en) * 1956-02-27 1962-12-11 Gerald C Bower Method for making wire reinforced fabric
US3082292A (en) * 1957-09-30 1963-03-19 Gore & Ass Multiconductor wiring strip
US3332825A (en) * 1964-06-05 1967-07-25 Automatic Elect Lab Twistor encapsulator machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915780A (en) * 1973-08-02 1975-10-28 Texas Instruments Inc Extruded epoxy packaging system
US4525230A (en) * 1981-03-27 1985-06-25 General Electric Company Method of manufacturing a ballast resistor support member
US4368089A (en) * 1981-09-30 1983-01-11 Colgate-Palmolive Company Method and apparatus for manufacturing dentifrice containing dispersed speckles
US4540533A (en) * 1982-10-29 1985-09-10 U.S. Philips Corporation Method of encapsulating electronic components by extrusion of plastic material
US4464218A (en) * 1983-04-18 1984-08-07 Flex-O-Lators, Inc. Method for reinforcing net materials
US20080105380A1 (en) * 2000-12-08 2008-05-08 Toyota Motor Sales, U.S.A., Inc. System for molding composite structures

Also Published As

Publication number Publication date
DK108870C (da) 1968-02-19
GB1112299A (en) 1968-05-01
AT253623B (de) 1967-04-10
NL6507067A (da) 1965-12-06

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