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US3831251A - Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section - Google Patents

Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section Download PDF

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Publication number
US3831251A
US3831251A US00327850A US32785073A US3831251A US 3831251 A US3831251 A US 3831251A US 00327850 A US00327850 A US 00327850A US 32785073 A US32785073 A US 32785073A US 3831251 A US3831251 A US 3831251A
Authority
US
United States
Prior art keywords
machine
platform
melting material
hopper
fuse
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
US00327850A
Other languages
English (en)
Inventor
M Aleksandar
K Mustafa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority to CH12073A priority Critical patent/CH559427A5/xx
Priority to FR7302490A priority patent/FR2214958B1/fr
Application filed by Individual filed Critical Individual
Priority to US00327850A priority patent/US3831251A/en
Priority to DE2313908A priority patent/DE2313908A1/de
Application granted granted Critical
Publication of US3831251A publication Critical patent/US3831251A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
    • H01H69/02—Manufacture of fuses
    • 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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49107—Fuse making
    • 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
    • Y10T29/53209—Terminal or connector
    • 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
    • Y10T29/53265—Means to assemble electrical device with work-holder for assembly
    • 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
    • Y10T29/53478—Means to assemble or disassemble with magazine supply

Definitions

  • the machine according to the invention represents the first instance of industrialized production of high voltage fuses without chaplets.
  • the new .high voltage fuse melting elements can be either of round cross section, in the form of spiral wire, or can be a slab in cross section.
  • Two different types of the new machines for production of high voltage fuses without chaplets are exemplified depending on the chosen form of the melting element.
  • One machine is shown in FIG. 1 where the melting element is a perforated strip; another type is shown in FIG. 2, where the melting element is a wire.
  • the construction is principally based on perforated laminas. which are preferred mainly for higher power fuses. Another reason for using perforated laminas is that overvoltage cannot be affected by the variation of the round wire cross section.
  • FIG. 1 is a vertical sectional sideview of a first embodiment of this invention.
  • FIG. 2 is a similar view of a second embodiment.
  • FIG. 1 Reference will first be made to FIG. 1.
  • FIG. 1 A preferred machine for such production of fuses, with slab melting elements, according to the invention, is shown in FIG. 1.
  • the machine comprises a base 18 with a post 27 having slidably positioned thereon a platform 12 rigidly supporting a hopper 5.
  • a platform 13 is slidably mounted on post 27 and supports a shaft 8 adapted for driving a vertical spindle l9 rotatably mounted on platform 13, the shaft being driven by electromotor 22 through pulley system 20, 21.
  • Post 27 also slidably supports a platform 11 which supports a socket 6 for a vertical pipe 7 slidably mounted in platform 13.
  • Secured to platform 11 is a vertical rod 24 with holes 25 for adjusting the height of platform 11 relative to a platform 14.
  • the platform 14 supports a vibrator 23 below hopper 5 and socket 6 and the platform 14 is provided with a clamp 26 having a fuse 1 positioned thereon.
  • Vibrator 23 and electromotor 22 are connected via a switch panel 30 for different operating conditions 32, 33, 34, 35, as is known to those skilled in the art.
  • the switch panel has a power cord 31.
  • a conveyor 10 for transporting melting laminas 2, made from coils connected to socket 6 joined with network connecting pieces 9.
  • Driving the winding of a coil pipe 7 is inserted therein and hopper 5 is inside pipe 7; for transporting a laminar coil, by the conveyor, pipe 7 is retracted from the coil.
  • downward vertical motions of platforms 11, 14 is effected, while platform 12 is raised.
  • one half of the spindle length, in regions 17, has a right hand thread and the other spindle half has a left hand thread for raising and lowering platforms 12, 11, respectively, and for uncoupling, by the raising of platform 12, a gear wheel 15 fixed to platform 12 from a gear wheel 16 on pipe 7 and from a pinion 36 on the shaft 8.
  • the movement of platform 11 is limited by stops 28 and 29.
  • the machine operates in the following manner:
  • platform 12 and hopper 5 are maximally raised whereas platform 11 is maximally lowered to the edge 4 of pipe 7.
  • the network connecting piece 9 is inside the pipe 7.
  • the end of a melting lamina 2, transported from the coils by the conveyor 10, is then connected to the socket 6.
  • the motor 22 By operating the motor 22, the hopper 5 on platform 11 moves downwardly and the platform 11 upwardly; the hopper 5, pipe 7, socket 6 and network connecting piece 9 being at the same time rotated, thus causing the winding of the spiral on the network connecting piece 9 which is now pulled over the pipe 7.
  • the operation of the motor is stopped, for example by a conventional limit switch (not shown).
  • Laminas are removed from the coils and their ends are connected to the end of the network connecting piece 9, as by gluing, cementing or soldering; then the vibrator 23 with clamp 26 is moved aside and the fuse 1 is pulled over pipe 7 and the network connecting piece 9. Vibrator 23 is then returned to the starting point and the fuse is fixed thereto, to the bottom of which having been previously connected the ends of the laminas, which have been connected to the network connecting piece. The'hopper is then filled with a defined amount of sand 3, which is sufficient for one charge of the fuse. Gear wheel 15 is moved into an upper position, so that it is disengaged from the gear wheel 16, and thus the rotation is stopped.
  • the vibrator is then switched on; vibrator 23 and platforms 11 and 14 begin to move downwardly, and platform 12 with hopper 5 upwardly.
  • the hopper retracts the network connecting piece 9 and the spirals of melting elements 2 slip down into the sand so as to be dug therein and rammed in place.
  • the hopper reaches its upper position, the filling of the fuse is completed and the latter is removed and sent for further mounting.
  • the following steps are required: fixing the wires to an indicator, rotating the fuse, transporting the wires for the fuse, and charging and ramming the sand into the fuse.
  • fixing the wires to an indicator it is necessary to have free space for stretching the spiral wire by hand for fixing the spiral to an indicator. Accordingly, sufficient working space and visibility are needed to enable workers to work in normal positions using the required tools.
  • the indicator wire should set the indicator spring free, during a short-circuit; in view of which the wire has to be stretched. This construction is based on the fact that the indicator wire will be used by the are along its length.
  • the machine according to FIG. 2 is provided so as to satisfy all the above mentioned requirements.
  • the unit below the lower fuse top transmits the vibrations from the vibrator to the fuse; at the same time it rotates together with the fuse during the filling.
  • the elements of thefu se cmfiir'ig'rrbifi'ihe indicator side are previously positioned on this unit. Pivotable linkage between the fuse and this unit is obtained by admission of the fuse screw top into this unit.
  • the construction of this embodiment of the machine is such that these basic requirements are realized. regarding the filling of the high voltage fuses. according to the previously given melting wire spiral layout in the fuse.
  • Gear wheels 16 are placed inside a box 18' for transmission of the drive of electromotor 22' through pulley systems 20', 21' to a shaft 8' the rotation of which is transmitted through gear wheels 19 and 17 to a shaft 15 with a guiding connecting piece 9, to roll wire conveyor 10 and through the gear wheels 19', 24' to shaft 25' with clamp 26 and fuse l.
  • Vibrator 23 is placed within the box 18 and is connected, together with electromotor 22', to the switch panel 30 with the controls 32, 33, 34, 35 for different operations.
  • the switch panel has a power cord 31.
  • Shaft 8 with fixed gear wheel 19 has a threaded end 36 engaged with a thread in socket 27' secured to platform 37 for moving the platform upwardly and downwardly, the path of which is limited by stops 28, 29.
  • the hopper 5 with transport pipes 14 is fixed by a clamp 7 on platform 37.
  • the machine as shown in H6. 2, for making melting wire fuses operates in the following manner: the fuse 1' is first fixed to clamp 26, and inside the fuse, the hopper 5' is located with transport pipes 14, and the melting wires are fixed to the fuse bottom.
  • the hopper is charged with the correct amount of quartz sand 3.
  • the vibrator 23' starts the filling of the fuse.
  • the conveyor 10' forces the wires from coil 13 through the guides 11 and 12' to the pipes 14', causing spiral windings of the wires in the sand which is at the same time being rammed by vibrator 23'.
  • the fuse is removed.
  • the conveyor does not transport the wires, due to the provision of a pawl and ratchet gear 16.
  • a machine for production of fuses without holders for the fuse elements comprising a clamping means for supporting a hollow fuse body, a hopper supported above said clamping means, said hopper serving for introduction of sand into the fuse body, a platform supporting said hopper, means for raising and lowering said platform and introducing and retracting said hopper into and from said fuse body, a supply of melting material to form a fuse element, means for coiling said melting material into said fuse body and vibrator means for compacting the sand in the fuse body around the coiled melting material.
  • a machine as claimed in claim 1 wherein said means for raising and lowering said platform comprises a drive motor, and a rotatable shaft coupled to said drive motor and threadably engaged with said platform.
  • a machine as claimed in claim 1 comprising a base with a support beam on which said platform is slidably mounted, a second platform slidably mounted on said support beam and supporting said vibrator means, said means for raising and lowering the first said platform comprising a drive motor, and means coupled to said drive motor moving said platforms, in concert, on said support beam respectively towards and away from one another.
  • said means for moving said platform comprises a shaft having opposite ends with opposite direction threads on said ends. said ends of the shaft being respectively threaded in said platforms.
  • said means for coiling the melting material into the fuse body comprises a socket rotatably mounted on the sec ond platform adapted for receiving the end of melting material to be coiled in the fuse body, a rotatable drive pipe drivingly engaged with said socket, said drive pipe being drivingly coupled said drive motor. a network connecting piece connected to said hopper and adaptedfor being disposed around said pipe.
  • said socket caus-; ing winding of the melting material around said con-, necting piece.
  • said hopper causing said connecting piece to be withdrawn from the wound melting material while the fuse body is lowered when said platforms are moved away from one another.
  • a machine as claimed in claim 2 comprising a box containing said vibrator means, said shaft extending into said box and including a fixed gear thereon, and a plurality of further gears in said box in mesh with said fixed gear and respectively coupled to said vibrator means and to said means for coiling the melting material.
  • said means for coiling the melting material comprises a transport pipe passing through said hopper into the fuse body. and means driven in rotation by one of said further gears and engaging the melting material to pass the same through said transport pipe.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuses (AREA)
US00327850A 1973-01-05 1973-01-29 Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section Expired - Lifetime US3831251A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH12073A CH559427A5 (fr) 1973-01-05 1973-01-05
FR7302490A FR2214958B1 (fr) 1973-01-05 1973-01-24
US00327850A US3831251A (en) 1973-01-05 1973-01-29 Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section
DE2313908A DE2313908A1 (de) 1973-01-05 1973-03-20 Vorrichtung zur herstellung von hochspannungssicherungen ohne isolationstragkern

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH12073A CH559427A5 (fr) 1973-01-05 1973-01-05
FR7302490A FR2214958B1 (fr) 1973-01-05 1973-01-24
US00327850A US3831251A (en) 1973-01-05 1973-01-29 Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section
DE2313908A DE2313908A1 (de) 1973-01-05 1973-03-20 Vorrichtung zur herstellung von hochspannungssicherungen ohne isolationstragkern

Publications (1)

Publication Number Publication Date
US3831251A true US3831251A (en) 1974-08-27

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ID=27427763

Family Applications (1)

Application Number Title Priority Date Filing Date
US00327850A Expired - Lifetime US3831251A (en) 1973-01-05 1973-01-29 Machine for production of high voltage fuses without insulating chaplet and with melting elements of different cross section

Country Status (4)

Country Link
US (1) US3831251A (fr)
CH (1) CH559427A5 (fr)
DE (1) DE2313908A1 (fr)
FR (1) FR2214958B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915881A (zh) * 2011-08-04 2013-02-06 上海工程技术大学 一种间歇旋转连续循环式熔断器灌砂机
CN105575735A (zh) * 2014-10-13 2016-05-11 乐清市雷胜自动化检测设备有限公司 熔断器自动灌沙机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203081A (en) * 1963-12-30 1965-08-31 Bell Telephone Labor Inc Apparatus for making sealed contact reed switches
US3404447A (en) * 1965-03-18 1968-10-08 Clare & Co C P Apparatus for making sealed switches
US3491425A (en) * 1967-03-03 1970-01-27 Western Electric Co Apparatus for assembling components of a sealed contact switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203081A (en) * 1963-12-30 1965-08-31 Bell Telephone Labor Inc Apparatus for making sealed contact reed switches
US3404447A (en) * 1965-03-18 1968-10-08 Clare & Co C P Apparatus for making sealed switches
US3491425A (en) * 1967-03-03 1970-01-27 Western Electric Co Apparatus for assembling components of a sealed contact switch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102915881A (zh) * 2011-08-04 2013-02-06 上海工程技术大学 一种间歇旋转连续循环式熔断器灌砂机
CN102915881B (zh) * 2011-08-04 2015-01-28 上海工程技术大学 一种间歇旋转连续循环式熔断器灌砂机
CN105575735A (zh) * 2014-10-13 2016-05-11 乐清市雷胜自动化检测设备有限公司 熔断器自动灌沙机
CN105575735B (zh) * 2014-10-13 2018-07-13 乐清市雷胜自动化检测设备有限公司 熔断器自动灌沙机

Also Published As

Publication number Publication date
FR2214958B1 (fr) 1976-11-05
CH559427A5 (fr) 1975-02-28
FR2214958A1 (fr) 1974-08-19
DE2313908A1 (de) 1974-09-26

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