US3722662A - Successive transfer apparatus for surface treatment of elongate articles - Google Patents

Successive transfer apparatus for surface treatment of elongate articles Download PDF

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Publication number
US3722662A
US3722662A US00128452A US3722662DA US3722662A US 3722662 A US3722662 A US 3722662A US 00128452 A US00128452 A US 00128452A US 3722662D A US3722662D A US 3722662DA US 3722662 A US3722662 A US 3722662A
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United States
Prior art keywords
articles
comb
unit
relay
transfer
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Expired - Lifetime
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US00128452A
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English (en)
Inventor
I Wakabayashi
T Sasaki
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Nippon Kakon K K
NIPPON KAKON K K JA
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Nippon Kakon K K
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
    • B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
    • B65G49/0413—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance through the bath
    • B65G49/0431—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance through the bath reciprocating conveying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/02—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid
    • B65G49/04—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction
    • B65G49/0409—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length
    • B65G49/0413—Conveying systems characterised by their application for specified purposes not otherwise provided for for conveying workpieces through baths of liquid the workpieces being immersed and withdrawn by movement in a vertical direction specially adapted for workpieces of definite length arrangements for conveyance through the bath

Definitions

  • the plating step requires usually much more timethan the pre-processing steps, suchas a pickling step.
  • the efficiency of the transport operation can be remarkable improved.
  • the present invention seeks to provide an apparatus comprising various component units which are mechanically inter-related to each other so as to fully satisfy the above-mentioned requirements.
  • the invention resides in means forming a plurality of processing lines forthe elongate articles, each line having a path comprising in succession a section leading into a processing tank or other vessel, a section leading through the tank or vessel, and a section leading from the previous section out'of the tank or vessel.
  • Means are provided for feeding articles in singleline or row into each processing line for progress therethrough.
  • a vertically disposed transfer unit is located in the downwardly first section and has means for stepwise movement of articles from a position above the tank to a position in the lower portion of the tank.
  • the section in the tank base member with a plurality of articlereceiving recesses arranged in a row, one end recess of which is arranged to receive articles in succession from the transfer unit.
  • Crank means connected to various members of the section in the tank imparts a succession of forward and rearward strokes thereto to move articles in the row from one to the other of the recesses while rotating the articles about their axes. As each article arrives at the other end recess it is picked out of the recess and lifted out of the tank by a graspingunit.
  • FIG. 1 is a topplan view of the overall apparatus
  • FIG. 2 is a side elevationalview thereof
  • FIG. 3 is an enlarged view of section A of FIG. 2 showing the detailed construction of the distributing unit
  • FIG. 4 is a cross-sectional view taken on the line IV IV of FIG. 3;
  • FIG. 5 is a front view of the gripping/transport unit
  • FIG. 6 is a side elevational view thereof
  • FIG. 7 is a front view of the relay/delivery unit
  • FIG. 8 is a cross-sectional view taken along the line VIII VIII of FIG. 7;
  • FIG. 9 is afront view of the vertical transfer unit
  • FIG. 11 is a top plan view of FIG. 9;
  • FIGS. v12 to 14 are the views similar to FIG. 9 and showing several operative phases of the same unit;
  • FIG. 15 is a-partial front view of the movable combshaped segment of the same unit.
  • FIG. 16 is a partial side elevation thereof
  • FIG. 17 is a partial front view of the fixed combshaped segment of the same unit.
  • FIG. 18 is a partial side elevation thereof;
  • FIG. 19 is an enlarged view showing the details of the horizontal transfer groove;
  • FIG. 20 is an enlarged view of section C of FIG. 2 showing the double-comb type transfer unit in partial perspective;
  • FIG. 21 is a front view of the lifting unit; and
  • FIG. 22 is a cross-sectional view taken on the line XXII XXII of FIG. 21.
  • the elongate articles 20"t0 be processed by the present apparatus are fed by a suitable feed device 10 in trim order and at a fixed-interval, and
  • each unit comprises a movable table and a gripping delivery unit arranged between the branch 'point.of the line and said table 110.
  • the table 110 is reciprocable in-aplan'e transverse to the transfer lines at a certain desired pitch.
  • the gripping/delivery unit 120 comprises a pair of pincers 121 for gripping the articles, a stopper 122 cooperable with said pincers 121, and a cam mechanism 123 forimpar ting vertical and swinging movements to both said pincers 121 and stopper 122.
  • the pincers 121 and 6) which, in turn, is fitted with a pair of pincers 121 at its lower end.
  • the pincers 121 are lowered together with shaft 128, with swinging of the lever 126, so as to grip article 20.
  • shaft 128 is again raised with the article 20 held by pincers 121.
  • a cam 129 mounted on shaft 124 coaxially with cam 125 carries a roller 130 engaging with periphery of a pincers guide member 131.
  • cam 129 The contour of cam 129 is so selected that, when the shaft 128 slides to its upper stationary position, the pincers guide member 131 is moved in an arc about shaft 132 to a cams 125, 129 acts on a second lever 134 which,.in'
  • a lever 115 swung at 116 is kept in pressure contact with cam 113 through its roller 114 under the action of a compressed spring 136.
  • a rack 118a secured to some stationary device has two rack portions on either sides of the lever 115. These rack portions engage with two gears 119a secured to a short shaft 117 slidably received in an oblong hole on the upper partof the lver 115.
  • Gear 1191 is also secured to shaft 117 and meshes with a rack 11% secured to the bottom of the movable table 110.
  • gear 119b is set into rotation, and the desired reciprocating motion imparted to the table 110.
  • the articles are placed on a fixed table2l through gripping/delivery unit 120,
  • FIGS. 7 and. 8 showing a preferred embodiment of the relay/transmitting unit 200, comprisingan inner comb-shaped segment 210 1 and outer comb-shaped segment 220 and two pairs of cranking means 230a, 230b secured to their peripheral portions.
  • Each comb-shaped segment 210, 220 has a series of projections on its upper side edge in the form of comb-teeth defining a plurality of article-receiving recesses and performs a crank motion phase shifted 180 relative to each other through the linkage thereof with the cranking means 2300,2301), so as to transport articles 20 stepwise towards the distributing units 120e, 120d.
  • This relay/transmitting unit 200 may be designed in the same way as the feed unit 400 to be described, or in any desired way, provided that articles can be 7 relayed between the distributing units horizontally and. at a fixed distance from each other. Following therelay/transmitting unit 200, the two lines are branched into four through'the way of distributing unit 120e,
  • the articles 20 can then be fed into the processing bath in the four transfer lines by means of vertically disposed transfer units 300a, 300b, 3000, 300d arranged on the respective line ends.
  • FIGS. 9 to 11 showing a preferred embodiment of the vertical transfer unit 300 comprising a movable segment 310 and a fixed segment, with comb-shaped strikers 370 provided optionally.
  • a guide plate 311 for the segment 310 is secured to two guide plates 312 for articles 20 being transported.
  • shafts 317, 354 are secured to the projected sides 313, 314 of the movable segment 310 and the projected sides 351, 352 of the fixed comb 350. These shafts 317, 354 are passed through oblong holes on the comb-shaped strikers 370a, 370b.
  • Said projected sides 313,314, 351, 352 and the comb-shaped strikers 370a, 370b are placed in opposition and close proximity to each other with a' small gap 315 adapted for prevention of articles 20 from droppingunintentionally, and provided with substantially horizontal grooves 316, 353,371, 372 at a fixed vertical distance therebetween equal to the pitch of transfer of the articles through the unit 300/This vertical distance, which is equal to that between the article 20 and the article 20a, should be selected to the proper value for the particular transfer apparatus and in function of the vertical stroke of the movable comb 310, as will become more apparent from the following description.
  • the vertical transfer unit 300 operates as follows:
  • the comb-shaped striker 370b suspendcdly attached to the fixed comb 350 is raiseda small distance equal tothe vertical extent of vthe oblong hole on the fixed comb 350.
  • the comb-shaped striker 370a is suspendedly attached to the movable comb 310 through several shafts 317 secured to the projected sides 313, 314, said shafts 317 passing through the oblong holes on the comb-shaped striker 370a with vertical extent equal to the short distance in the above sense.
  • the comb-shaped striker 3700 is brought to a stop, with its lever 318 abutting on the lower edge of the elongated opening.
  • the movable comb 310 can descend further the small distance in the above sense for causing impulsive upward movement of the comb-shaped striker 370a with respect to the movable comb 310.
  • the comb-shaped striker 370b is suspendedly attached to the fixed comb 350 by several shafts 354 passed through oblong holes equal to the distance the comb-shaped striker 370b is hit to move upwards.
  • a lever 355 secured to the combshaped striker 370b and slidable within said slit has its two edges bent as shown a lever 356 is secured to said movable comb 310 and movable therewith between the bent edges of the lever 355.
  • the lever 356 will be brought into abutting contact with the upper bent edge of the lever 355 as the comb 310 is moved to the position lower than the upper end of its stroke by the short distance in the above sense.
  • the comb-shaped striker 370b accompanies the movable comb 310 with an impulse movement.
  • FIG. 19 shows the shape of the horizontal grooves 316, 371, 353, 372.
  • the lower edges of these grooves are sloped with a gradient of to 45 so that the article 20 is always inclined to slide down by its own gravity. Therefore, the comb-shaped striker 370a, 370b are by no means essential to the construction of the transfer unit 300.
  • the articles 20 are smeared with machine oil or like adhesive agents, however, they can hardly be transferred smoothly from the grooves 316, 371 to the grooves 353, 372 or vice versa. In this case, thecomb-shaped strikers 370a, 370b will come into operation for compulsorily positioning articles on the bottom portion of the aligned grooves.
  • the unit 400 comprises a central comb-shaped section 410, two lateral combshaped sections 450 and cranking devices 470 as shown in FIG. 2 for imparting cranking movements to said sections 410, 450.
  • On the upper surface of the central comb-shaped section 410 there are formed a number of paired parallel projections 41 1 defining a plurality of cut-outs 412.
  • the lateral comb-shaped sections 450 are arranged on both sides of the section 410 and formed with similar cut-outs 451 and 452 as those on the section 410.
  • cranking devices 470 adapted for imparting cranking movements phase shifted relative to each other.
  • the cranking device 470 in the present embodiment comprises a crank 471, suspenders 472 and shafts 474, 475 interconnecting the lower portions 473 of the sections 410, 450 and secured to the lower parts of the suspenders 472.
  • the unit 400 may also be arranged in the same way as the unit 200 already explained, and the embodiment shown herein is not limitative.
  • the offset distance of the cranks is designed to be equal to half the pitch of the cut-outs 451, 452.
  • Numeral 476 denotes a stopper on the lateral combshaped sections 450.
  • the crank movements performable with the double-comb type transfer unit may be of any types as desired.
  • cranking movement is such that the central combshaped section 410 moves in arc towards the upper right while the lateral sections 450 move towards lower left.
  • the articles 20 can be transported by the transfer unit 400 from left to right in FIG. 2 as they are rolled about their axes, and are lifted in trim order from the reservoir 30 through a lift unit 500 provided to each processing line.
  • the lift unit 500 is shown in detail in FIGS. 21 and 22- and comprises a grasping device 510 and a lift device 550.
  • the former device 510 includes a body member 511 and a drive cam assembly 530.
  • Said body 511 is swingably mounted about, shaft 501 and has a movable cylinder 512 therein which is acted upon by a compressed spring 517 to move downwards inside the body member 511.
  • a central shaft 525 is disposed inside the cylinder 512 and acted upon by a compressed spring 518 so as to move dounwards inside the cylinder 512.
  • Central shaft 525 has a cut-out 526 and acompressed apring 519 secured thereto and acts on a coupling shaft 520.
  • the coupling shaft 520 urged in this way to move downwards inside the cylinder 512, has apin 521 towards its bottom slidably engaged within c'am slots 522, 523 on the fittings 515, 516 adapted for grasping the article 20 therebetween.
  • These fittings 515, 516 are swingable about pins 514, 513 formed on the bottom of the cylinder 512.
  • Numeral 531 denotes a drive shaft secured to cam plates 532, 532, 533 which are kept in direct pressure contact with rollers 538, 538, 539 fitted on levers 536, 536, 537, respectively.
  • These levers 536, 536, 537 are swingably mounted on a common shaft 535.
  • the free ends of the levers 536, 536 are urged to move downwards by abutment with pins 524, 524 of the cylinder 512 acted upon, as described, by the compressed spring 517.
  • the free end of the lever 537 is received within the cut-out 526 on the center shaft 525 acted upon, as described, by the compressed spring 518.
  • Numeral 527 denotes a bracket fitted to the body member 511 and carries a roller 528 at its foremost portion.
  • Numeral 529 dc notes a further bracket fitted to the top of the body member 511 and acted upon by a compressed spring 540 so as to cause the body 511 to turn clockwise about shaft 501.
  • the roller S28 is thus kept in pressure engagement with cam plate 534.
  • the cam plates 532, 533, 534 are set into rotation simultaneously with rotation of the drive shaft 531, so as to cause the levers 536, 536, 537 to oscillate in conformity with the respective cam surface configuration.
  • the lifting device 550 comprises two parallel arms 551, 552 swingable about shafts 553, 554 and a support 555 connected by a pin connection to the ends of the arms 551, 552.
  • Numeral 556 denotes a drive shaft fitted with a crank 557 having a roller 558 at its end engaging in an elongated slot 559 formed on the arm 551.
  • Said arm 551 is swung about shaft 553 through the rotational movement of the crank 557 thus causing the supportSSS to move in an arc in retaining its horizontal position.
  • the article 20, grasped by the grasping device 510 is placed on the lift device through the grasping, lifting and swinging motions of the grasping device 510 and lifted to the next feed unit 600 through the lifting device'550.
  • This unit 600 has the same construction as the units 200 or 400'already described, and is used for feeding articles sequentially towards right in FIGS. 1 and 2. So far, the articles 20 have been fed in the desired number of lines but they are not collected in one place by means of a hopper 700, and charged into a container 800.
  • the drive unit 900 for driving each unit is so designed that a main shaft 903 is set into rotation from drive power source 901 comprising a motor and a speed reducer, for example, through a torque limiter 902,'and each unit is driven from this main shaft 903 through bevel gears 904. in the case of the grasping and temperatures and corrosive atmosphere, in the case of a plating operation, and satisfactory operation may be assured.
  • a successive transfer apparatus for surface treatment of a plurality of elongate articles in a processing reservoir comprising:
  • feed means for feeding said articles in at least one feed line
  • a distributing unit receiving the articles from said feed means, said distributing unit having a grasping and delivery device and a support block for longitudinally separating or branching the articles from said feed line of said feed means into a plurality of branch feed lines and distributing said articles into respective branch transfer systems;
  • each relay-transmitting unit receiving the articles from each of said branch feed lines of said distributing unit, each relay-transmitting unit having a plurality of comb-shaped segments provided with a number of longitudinal constant pitch grooves in which said articles are received, said comb-shaped segments carrying out a cranking movement with a phase shift of relative to each other for feeding said articles from groove-to-groove in a spaced manner from each respective branch feed line;
  • each vertical transfer unit receiving articles from each of said relay-transmitting units, each vertical transfer unit having a vertically movable comb and a fixed comb of a constant width and a given length, said combs being mounted vertically in close proximity and in opposition to each other and having on the opposing sides thereof a number of constant pitch grooves, said vertical transfer units moving said articles in said grooves vertically to said processing reservoir;
  • a double-comb type transfer unit receiving the articles from each of said vertical transfer units, each of said transfer units being immersed in said processing reservoir and including comb-shaped segments provided with a plurality of longitudinal constant pitch grooves in which said articles are received, said segments being cranked with a phase shit of- 180 relative to each other for rolling axially and advancing said articles groove-bygroove in a spaced manner through said processing reservoir, said double-comb type transfer units being similar in construction to said relay-transmitting units; and I a grasping unit for removing processed articles from said double-comb type transfer units in said processing reservoir, said grasping unitcomprising a swingable grip device for selectively gripping an article, a driving-cam mechanism operably coupled to move said grip device, and a lift device for lifting said grip device, the lift device including a plurality of levers swingable in parallel relation and a support fitted to the ends thereof.
  • said relay-transmitting units transfer said articles in a stepby-step manner.
  • Apparatus according to claim 1 comprising a common drive means operatively coupled to said feed means, distributing unit, relay-transmitting unit, vertical transfer unit and double-comb type transfer unit.
  • said distributing unit includes a conveyor-type means reciprocably movable substantially perpendicular to said feed line of said feed means for branching said articles.
  • said distributing unit includes a plurality of grasping and delivery devices for branching said articles.
  • said distributing unit includes a plurality of cascaded grasping and delivery devices to first branch said feed line into a first plurality of lines, and to then branch said first plurality of lines into a second plurality oflines.
  • Apparatus according to claim 1 wherein the comb-shaped segments of each double-comb type transfer unit have an eccentricity of less than one half of the comb pitch.
  • said grasping unit includes a plurality of swingable grip devices, the number of which is the same number as the number of branch lines passing through said processing reservoir.

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US00128452A 1970-10-20 1971-03-26 Successive transfer apparatus for surface treatment of elongate articles Expired - Lifetime US3722662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45091613A JPS4922746B1 (enrdf_load_stackoverflow) 1970-10-20 1970-10-20

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US3722662A true US3722662A (en) 1973-03-27

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US00128452A Expired - Lifetime US3722662A (en) 1970-10-20 1971-03-26 Successive transfer apparatus for surface treatment of elongate articles

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US (1) US3722662A (enrdf_load_stackoverflow)
JP (1) JPS4922746B1 (enrdf_load_stackoverflow)
CA (1) CA932346A (enrdf_load_stackoverflow)
CH (1) CH530329A (enrdf_load_stackoverflow)
DE (1) DE2116632A1 (enrdf_load_stackoverflow)
FR (1) FR2112317A1 (enrdf_load_stackoverflow)
GB (1) GB1326321A (enrdf_load_stackoverflow)
SE (1) SE361455B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110895U (enrdf_load_stackoverflow) * 1974-07-10 1976-01-27
US4139108A (en) * 1975-06-25 1979-02-13 W. Schlafhorst & Co. Magazine assembly for coil cores or tubes
US4147503A (en) * 1976-10-09 1979-04-03 Klockner-Humboldt-Deutz Ag Grid cooler, particularly feed step grid cooler
US4286422A (en) * 1977-12-27 1981-09-01 W. R. Grace & Co., Cryovac Division Walking beam bag loader
US4598813A (en) * 1984-12-06 1986-07-08 Zenith Electronics Corporation Vibration damping nest for axial lead components
US5123229A (en) * 1989-11-21 1992-06-23 Dardaine Industries S.A. Method of and device for transferring lids, covers or the like into a machine for the sterile conditioning of containers
US5484047A (en) * 1994-05-16 1996-01-16 Owens-Illinois Plastic Products Inc. Container decorating system
US6374988B1 (en) * 2000-02-02 2002-04-23 Fairfield Machine Company, Inc. Accumulating conveyor for elongated stock
US20130284564A1 (en) * 2011-04-06 2013-10-31 Sms Meer Gmbh Conveyor for elongated workpieces
RU2840882C1 (ru) * 2024-11-11 2025-05-29 Общество с ограниченной ответственностью "Уральская машиностроительная компания" Установка для электролитического нанесения покрытий на длинномерные цилиндрические изделия

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444172C2 (de) * 1974-09-16 1983-01-20 Otto Dürr Anlagenbau GmbH, 7000 Stuttgart Anlage zur Oberflächenbehandlung von Werkstücken
KR930005013B1 (ko) * 1990-03-16 1993-06-11 다이도 메탈 고오교오 가부시기가이샤 이분할 슬라이딩 베어링의 표면 처리방법 및 장치
CN109281480B (zh) * 2018-11-07 2023-10-20 中建八局第一建设有限公司 一种建筑工地预留口封堵板材用自动转运及铺设装置

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5110895U (enrdf_load_stackoverflow) * 1974-07-10 1976-01-27
US4139108A (en) * 1975-06-25 1979-02-13 W. Schlafhorst & Co. Magazine assembly for coil cores or tubes
US4147503A (en) * 1976-10-09 1979-04-03 Klockner-Humboldt-Deutz Ag Grid cooler, particularly feed step grid cooler
US4286422A (en) * 1977-12-27 1981-09-01 W. R. Grace & Co., Cryovac Division Walking beam bag loader
US4598813A (en) * 1984-12-06 1986-07-08 Zenith Electronics Corporation Vibration damping nest for axial lead components
US5123229A (en) * 1989-11-21 1992-06-23 Dardaine Industries S.A. Method of and device for transferring lids, covers or the like into a machine for the sterile conditioning of containers
US5484047A (en) * 1994-05-16 1996-01-16 Owens-Illinois Plastic Products Inc. Container decorating system
US6374988B1 (en) * 2000-02-02 2002-04-23 Fairfield Machine Company, Inc. Accumulating conveyor for elongated stock
US20130284564A1 (en) * 2011-04-06 2013-10-31 Sms Meer Gmbh Conveyor for elongated workpieces
US8746441B2 (en) * 2011-04-06 2014-06-10 Sms Meer Gmbh Conveyor for elongated workpieces
RU2840882C1 (ru) * 2024-11-11 2025-05-29 Общество с ограниченной ответственностью "Уральская машиностроительная компания" Установка для электролитического нанесения покрытий на длинномерные цилиндрические изделия

Also Published As

Publication number Publication date
FR2112317A1 (enrdf_load_stackoverflow) 1972-06-16
CA932346A (en) 1973-08-21
DE2116632A1 (de) 1972-04-27
SE361455B (enrdf_load_stackoverflow) 1973-11-05
JPS4922746B1 (enrdf_load_stackoverflow) 1974-06-11
CH530329A (fr) 1972-11-15
GB1326321A (en) 1973-08-08

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