US3510287A - Moil severing method and apparatus - Google Patents

Moil severing method and apparatus Download PDF

Info

Publication number
US3510287A
US3510287A US606979A US3510287DA US3510287A US 3510287 A US3510287 A US 3510287A US 606979 A US606979 A US 606979A US 3510287D A US3510287D A US 3510287DA US 3510287 A US3510287 A US 3510287A
Authority
US
United States
Prior art keywords
moil
glassware
severing
ware
article
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
US606979A
Other languages
English (en)
Inventor
James E Panczner
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Application granted granted Critical
Publication of US3510287A publication Critical patent/US3510287A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/08—Severing cooled glass by fusing, i.e. by melting through the glass
    • C03B33/085—Tubes, rods or hollow products

Definitions

  • the thermal unit for severing an end moil or trim portion of the glassware from the article is arranged in an elongated or linear array parallel with the linear path for the glassware.
  • the glassware is supported by a chuck at its base or end opposite the moil portion, gripped and carried inverted through the linear thermal unit at the desired elevation to define the moil cut-off line annularly of the glassware.
  • the article is rotated axially while it is simultaneously advanced through the thermal unit.
  • a severed moil section of the ware results upon sufficient narrow-band heating of the rotated ware and the severed glass falls vertically and below the thermal unit.
  • the thermal unit embodiment is a pair of parallel, opposed, sharp edge blade electrodes energized by high voltage, high frequency electrical source means. Air directed to the moil cut-olf line prevents an ionized air layer from forming due to air breakdown in the electrical arc.
  • This invention relates to a method and apparatus for severing the moil from glass articles, such as beakers, tumblers, etc., which articles are formed in the wellknown paste mold process of glass forming. More particularly, this invention relates to a method and apparatus for handling a plurality of glass articles through a moil severing process involving the use of high frequency, high voltage current as the severing means.
  • the present invention provides an arrangement for handling glassware with the moil portion down, wherein the glassware is rotated about its vertical axis while simultaneously therewith it is moved laterally through the moil severing operation.
  • the moil severing operation involves applying to the line of severance a ame or other means for producing a heated band extending circumferentially about the glassware. Glassware with the heated band is then moved into a zone between at least a pair of opposed, blade electrodes energized by a spark gap generator to apply a high (radio) frequency current at a voltage between 10,000 and 15,000 volts whereby current will pass through the heated band resulting in the separation of the moil from the rest of the article.
  • applicant provides an air jet arrangement for interrupting the ionized gas layer.
  • a plurality of blade electrodes serially arranged are provided with each pair of electrodes being connected to its own individual spark gap generator.
  • vIt is a further object of this invention to provide a method and apparatus for severing the moil from glass articles in which a plurality of articles are individually conveyed through a severing zone in series utilizing a plurality of serially arranged, blade-type, pairs of electrodes.
  • FIG. 1 is a schematic, perspective view of the apparatus of the invention particularly illustrating the severing zone
  • FIG. 2 is an elevational view of one of the ware handling members or dollies of FIG. 1 on an enlarged scale;
  • FIG. 3 is a cross-sectional view taken generally at line 3-3 of FIG. 2;
  • FIG. 4 is a top plan view of one of the blade electrodes of FIG. 1, on an enlarged scale.
  • the apparatus of the invention is schematically shown and comprises a pair of tracks 10 and 11 which are continuous and describe a pair of horizontally disposed, spaced-apart, oval paths illustrated by the dot-dash line.
  • Each of the handling members or dollies 12 is comprised of a central, vertical shaft 13, which shaft 13 is rotatably supported within a cast bushing 14.
  • the lower end of the shaft 13 is provided with a three-fingered spring clip 15, with the fingers thereof extending radially at generally spacing and adapted to frictionally retain the ware or article W to be carried through the moil severing operation.
  • the ware is held by the spring clip 15 at its bottom, with the axis of the ware being vertical.
  • the moil portion of the ware will be positioned downward so that upon completion of the severing of the moil from the ware, the moil may drop vertically by gravity and be discarded.
  • Each of the castings 14 is provided with a pair of radially extending bosses 16 and 17.
  • Each of the lbosses 16 and 17 is provided with a horizontal opening through which extend a pair of horizontal shafts 18 and 19.
  • Each of the shafts 18 and 19 is provided with a pair of wheels, with the wheels 20 and 21 carried by the shaft 18 and wheels 22 and 23 carried by the shaft 19.
  • the wheels 20, 21, 22 and 23 are adapted to ride within the channel formed in the tracks 10 and 11 and effectively guide the movement of the ware handling mechanism in a path defined by the tracks 10 and 11.
  • va pinion 24 xed to the upper end of the shaft for the purpose of providing a drive connection between the pinion and shaft.
  • the upper end of the shaft 13 is provided with a vertical passage 25 extending downward from the upper end thereof to a cross passage 26.
  • the cross passage 26 opens into an annular, relieved area 27 in the side of the shaft and a sleeve '28 surounds the shaft and effectively covers the relieved area 27.
  • the sleeve 28 is provided with a pair of passages 29 and 30 'extending radially therefrom Patented May 5, 1970 to which are joined a pair of pipes 31 and 32 respectively.
  • Both of the pipes 31 and 32 extend outwardly beyond the diameter of the ware and are then turned downwardly with their lower ends 33 and 34 bent inwardly so as to be directed toward diametrically opposed points on the side of the ware slightly above the line of severance 35.
  • the shafts 18 and 19 may actually be fixed to the bosses 16 and 17 with each of the wheels 20, 21, 22 and 23 being provided with bearings so as to be freely rotatable with respect to the shafts.
  • the pipes 31 and 32 are adapted to convey air under pressure and to direct the air to impinge on the sides of the ware W at points slightly above the line of severance 35.
  • This impingement of air is provided so as to physically interrupt any layer of ionized gas which may be formed about the circumference of the ware in the area of the line of severance.
  • the air pipes are provided so as to interrupt this ionized gas layer circumferentially surrounding the article at the line of severance 35.
  • the air is supplied to the pipes 31 and 32 through the passage 25 in the shaft 13 from an air manifold 36.
  • the air mani-fold 36 extends horizontally in line with the plurality of the dollies positioned in the severing portion of the apparatus.
  • the air manifold as best shown in FIG. 2, has a longitudinal slot 37 opening downward and provides the means of communicating the air supplied to the manifold by a pipe 38 with the passage 25 in the shaft 13.
  • the dollies are moved at a constant speed through the mechanism illustrated in FIG. l by a motor 40- carried by one of the dollies and having the output of the motor drive a belt 41 which in turn drives a pulley 42 connected to the shaft 19 of the one dolly to rotate the shaft and drive the wheels fixed thereto. In this manner the entire train of dollies may be driven at a preselected constant speed around the tracks 10 and 11.
  • the ware be rotated about its vertical axis during the flame heating of the ware to form the conductive band at the line of severance, and it is also necessary that the ware be rotated during its movement between the electrodes.
  • This rotary movement is imparted to the ware supporting shaft 13 by engagement of the pinion 24 with a stationary rack 43 mounted above and extending parallel to the line of movement of the dollies 12.
  • the pinion 24 engages the rack 43 resulting in rotation of the ware, it being understood that only the shaft 13 turns, with the sleeve 28 and the cast bushing 14 remaining stationary with respect to this rotation.
  • the severing zone illustrated in FIG. 1 consists first of a pair of gas fired yburners 44 and 45 which produce a pair of opposed narrow sheets of flame extending throughout the length of the burners.
  • the flames will impinge on the ware at the preselected line of severance to effectively produce a band of heated glass at the line of severance. It is necessary that the glass be heated so that an electrically conducting path will be formed in the glass at the preselected line of severance.
  • the ware is rotated so that the heat is uniformly applied to the ware as it passes between the burners 44 and 45.
  • the dollies After passing between the burners, and while the ware is still rotated, the dollies will carry the ware between a first pair of opposed blade-type electrodes 46 and 47. These blades are connected to a conventional arc-type high frequency voltage generator (not shown).
  • the heated band thereon provides a conductive path for the current to flow from one blade to the other, with the current flowing through the glass itself with the hottest portion of the glass serving as the path o-f least resistance. If the ware were held in the zone or area between the blades 46 and 47 for a sufficient time, complete severance of the moil from the ware would be accomplished. However, in order to provide an arrangement for severing a plurality of pieces of ware successively at relatively high speeds, it has -been found necessary to divide the blade electrodes, which would be much longer in length, into a plurality of segments or individual pairs of electrodes 48, 49, 50, 51, 52, 53, 54 and 55.
  • the blades are each approximately five inches in length and separated ⁇ by a three quarters of an inch gap.
  • the blades are set so that they present a gap of one-fourth to threesixteenth of an inch between their edges and the ware to be severed.
  • each of the pairs of -blades which constitute an arc-producing arrangement is supplied by its individual and separate high frequency, high voltage arc generator (not shown).
  • the forward edges of the blades are sharpened to a relatively thin knife-edge being formed of a ⁇ conductive metal oppositely bevelled to provide an included angle of approximately 30.
  • the voltage generators which are connected to each pair of electrodes are rated to produce a voltage of 10,000 to 15,000 volts at a frequency in the range of 300 cycles per second to o-ne megacycle with a current output of between 4 and 5 amps. RMS.
  • the ware may be easily removed from the apparatus, and articles having the moil thereon may be loaded into the holders preparatory to their movement through the severing operation.
  • the method of severing a moil portion at the one end of 'a glass article comprising the steps of inverting the article with its central axis vertical, moving the inverted article with the moil lowermost in a horizontal path, supporting the article from the top portion thereof at a distance sufiicient to permit unobstructive dropping of the moil by gravity when severed, directing heat toward the article by an elongated heat energy source disposed parallel to said path at an elevation corresponding to a moil cut-off line on the article whereat the moil and article are to be severed, said elongated source being in closely spaced proximity to the surface of the Iarticle as it 4moves in said path, rotating the inverted article about its central axis while moving the latter in said path, thereby heating the glass circumferentially at the moil cut-off elevation, maintaining the heating of the glass sufficiently to effect thermal severing at the moil cut-off line, thereby allowing the cut-off moil portion to separate from the article while in said path and fall
  • step of highl voltage, high frequency electric arc heating is carried out by simultaneously axially rotating and horizontally moving the inverted article between a pair of linear, opposed, sharp edge blade electrodes.
  • step of electric arc heating is carried out by providing a plurality of blades in end-to-end relation on opposite sides of the article and individually energizing said blades by a high voltage, high frequency electrical source.
  • Apparatus for handling glassware in severing a moil end portion thereof comprising an endless movable carriage, means engaging the carriage defining a closed path of movement for the latter, plural rotary article chucks connected to said carriage for movement therewith, means connected to said carriage for driving the latter in said path, said chucks each including means for releasably engaging a piece of glassware and for holding it by its end portion opposite said moil end with the axis of tne glassware depending perpendicularly from the path of said carriage with the moil end portion lowermost, said chucks supporting said glassware at a height sufficient to permit unobstructed dropping of the moil by gravity when severed, the chucks moving in a horizontal span of said closed path thereby holding the glassware in a vertically inverted position, stationary horizontal guide means disposed along said horizontal span, means on said chucks engaging said guide means for moving the glassware forward in a level fashion through said horizontal span, elongated linear glass burn-olf means supported along said horizontal segment
  • the movable carriage comprises a plurality of dollies, means connecting the dollies end-to-end in chain-like fashion, the dollies including a pair of spaced transverse shafts, rollers on opposite ends of the shafts, said stationary horizontal guide means comprising a pair of horizontal, parallel, spaced-apart tracks, said rollers running on said tracks thereby guiding the horizontal span of movement of the chucks.
  • the means on said chucks releasably engaging the glassware comprises a spindle rotatably mounted on said carriage, plural spaced-apart fingers connected to said spindle depending axially and engageable with the side of the glassware, the chuck including a base support for the glassware intermediate said fingers, whereby the engagement of the fingers on the glassware seats the bottom of the latter against said support, a pinion connected to said shaft, and the means for rotating the chucks comprising a linear stationary member engaging said pinion of each chuck in movement through said horizontal span rotating the prnion simultaneously with horizontal movement of the chuck in said span.
  • said burn-off means comprises a pair of elongated horizontal heaters in facing, spaced-apart relationship, opposed, spaced-apart, horizontal blade electrodes adjacent said heaters and disposed in the same horizontal plane, and a source of high frequency, high voltage current connected to said electrodes.
  • each blade electrode is comprised of plural, spaced, end-to-end, blades having an inner facing edge bevelled to a sharp edge and the trailing corner thereof rounded to prevent interelectrode discharge during glassware movement from one blade to the next blade.
  • Apparatus for handling glassware articles in severing a moil end portion and thereby form a mouth end thereon comprising an endless chain-like carriage element, means engaging the carriage element guiding it in a closed path, plural article holding chucks rotatably connected on said carriage element for movement therewith, means connected for driving said carriage in said path, said chucks each including plural finger-like members extending axially of thechuck and reciprocatingly movable toward and away from such axis for releasably engaging a glassware article thereby holding it by its bottom end portion with its central axis perpendicular to the carriage element with the moil end portion lowermost, said chucks supporting said glassware at a height suicient to permit unobstructed dropping of the moil by gravity when severed, stationary horizontal guide means disposed along said path, means connected to said chucks and engaging said guide means for maintaining the glassware in an inverted vertical position and at a predetermined horizontal elevation, elongated linear glass burn-off means, means for supporting said burn-
  • burn-off means comprises opposed, linear, horizontal, spaced-apart burn-ofi: ⁇ members each connected to said source of thermal energy and directing heat onto the moil of the glassware from opposite sides thereof during movement of the inverted glassware between the burn-olf members, the separated moil of the glassware dropping by gravity from the space between said burn-off elements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Saccharide Compounds (AREA)
  • Surface Treatment Of Glass (AREA)
US606979A 1967-01-03 1967-01-03 Moil severing method and apparatus Expired - Lifetime US3510287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60697967A 1967-01-03 1967-01-03

Publications (1)

Publication Number Publication Date
US3510287A true US3510287A (en) 1970-05-05

Family

ID=24430303

Family Applications (1)

Application Number Title Priority Date Filing Date
US606979A Expired - Lifetime US3510287A (en) 1967-01-03 1967-01-03 Moil severing method and apparatus

Country Status (6)

Country Link
US (1) US3510287A (OSRAM)
CS (1) CS169782B2 (OSRAM)
FR (1) FR1549918A (OSRAM)
GB (1) GB1214922A (OSRAM)
NL (1) NL144244B (OSRAM)
SE (1) SE331163B (OSRAM)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149191A1 (de) * 1970-10-02 1972-06-08 Owens Illinois Inc Verfahren und Vorrichtung zum Formen eines Halses auf einem Glasbehaelter
US3734704A (en) * 1971-10-15 1973-05-22 Owens Illinois Inc Method of making glass articles
US3803876A (en) * 1970-10-15 1974-04-16 Bartlett Collins Co Glassware dimpling
US3816088A (en) * 1970-10-22 1974-06-11 Owens Illinois Inc Glass heat treat machinery
US3870498A (en) * 1973-04-16 1975-03-11 Philips Corp Method of manufacturing hollow glass articles
US4568372A (en) * 1983-08-01 1986-02-04 Societe Francaise D'ampoules Mecaniques Burners fitting out machines designed for the thermomechanical treatment of articles such as, more particularly, glass tubes
FR2579974A1 (OSRAM) * 1985-04-03 1986-10-10 Sasaki Glass Kk
US5252113A (en) * 1990-12-24 1993-10-12 Samsung Corning Co., Ltd. Moil crack-off system for a funnel
US9114467B2 (en) 2009-05-14 2015-08-25 Picodrill Sa Method of smoothing and/or bevelling an edge of a substrate
CN115417582A (zh) * 2022-08-30 2022-12-02 重庆市远铃玻璃有限公司 一种旋转式玻璃爆底机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703363A (en) * 1970-04-01 1972-11-21 Owens Illinois Inc Method and apparatus for making glass containers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1857492A (en) * 1927-09-20 1932-05-10 Fed Glass Company Method and apparatus for completing pressed blown ware or blown ware
US2068799A (en) * 1933-09-02 1937-01-26 Corning Glass Works Tempering glass
US2383113A (en) * 1942-01-16 1945-08-21 Westinghouse Electric Corp Means for uniting parts
US2644274A (en) * 1949-05-07 1953-07-07 Corning Glass Works Burn-off machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1857492A (en) * 1927-09-20 1932-05-10 Fed Glass Company Method and apparatus for completing pressed blown ware or blown ware
US2068799A (en) * 1933-09-02 1937-01-26 Corning Glass Works Tempering glass
US2383113A (en) * 1942-01-16 1945-08-21 Westinghouse Electric Corp Means for uniting parts
US2644274A (en) * 1949-05-07 1953-07-07 Corning Glass Works Burn-off machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149191A1 (de) * 1970-10-02 1972-06-08 Owens Illinois Inc Verfahren und Vorrichtung zum Formen eines Halses auf einem Glasbehaelter
US3803876A (en) * 1970-10-15 1974-04-16 Bartlett Collins Co Glassware dimpling
US3816088A (en) * 1970-10-22 1974-06-11 Owens Illinois Inc Glass heat treat machinery
US3734704A (en) * 1971-10-15 1973-05-22 Owens Illinois Inc Method of making glass articles
US3870498A (en) * 1973-04-16 1975-03-11 Philips Corp Method of manufacturing hollow glass articles
US4568372A (en) * 1983-08-01 1986-02-04 Societe Francaise D'ampoules Mecaniques Burners fitting out machines designed for the thermomechanical treatment of articles such as, more particularly, glass tubes
FR2579974A1 (OSRAM) * 1985-04-03 1986-10-10 Sasaki Glass Kk
US4682003A (en) * 1985-04-03 1987-07-21 Sasaki Glass Co., Ltd. Laser beam glass cutting
US5252113A (en) * 1990-12-24 1993-10-12 Samsung Corning Co., Ltd. Moil crack-off system for a funnel
US9114467B2 (en) 2009-05-14 2015-08-25 Picodrill Sa Method of smoothing and/or bevelling an edge of a substrate
CN115417582A (zh) * 2022-08-30 2022-12-02 重庆市远铃玻璃有限公司 一种旋转式玻璃爆底机

Also Published As

Publication number Publication date
DE1696034B2 (de) 1972-10-19
DE1696034A1 (de) 1971-12-23
FR1549918A (OSRAM) 1968-12-13
GB1214922A (en) 1970-12-09
NL144244B (nl) 1974-12-16
SE331163B (OSRAM) 1970-12-14
NL6800084A (OSRAM) 1968-07-04
CS169782B2 (OSRAM) 1976-07-29

Similar Documents

Publication Publication Date Title
US3510287A (en) Moil severing method and apparatus
US3754884A (en) Glass cutting method and apparatus
US3650724A (en) Crack-off apparatus for glass articles
CN108101349B (zh) 摩擦驱动式玻璃管切割封底装置
JPS6355197B2 (OSRAM)
US3334980A (en) Apparatus for forming and collecting filaments
KR101561692B1 (ko) 플랜지용 플라즈마 절단 장치
CN113754264A (zh) 一种玻璃管加工设备及生产线
US6619946B1 (en) Apparatus for trimming and performing a second operation on plastic containers
CN108083621B (zh) 玻璃管切割封底装置
US2902575A (en) Electric glassworking
US4319118A (en) Method of welding tantalum lead wires to tantalum capacitor anodes
US2323182A (en) Glass severing apparatus
US2334111A (en) Apparatus for burning off glassware
US2487974A (en) Process of continuously thermochemically scarfing a series of elongated steel bodiesand apparatus therefor
US2116327A (en) Machine for tempering springs
US1718654A (en) Apparatus for fire finishing glass articles
US3188191A (en) Method of severing glass tubing
US3057325A (en) Carbon deposition apparatus
US4059382A (en) Apparatus for processing top ends of rod-like resin articles
GB2063724A (en) Continuous production of very small diameter metal wire
US1857492A (en) Method and apparatus for completing pressed blown ware or blown ware
US1973546A (en) Means for and method of separating glass sheets
US1996814A (en) Cut-off burner for hollow glass articles
US2446908A (en) Spark plug manufacture