US3710482A - Semi-automatic sequencing machine - Google Patents

Semi-automatic sequencing machine Download PDF

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Publication number
US3710482A
US3710482A US00172429A US3710482DA US3710482A US 3710482 A US3710482 A US 3710482A US 00172429 A US00172429 A US 00172429A US 3710482D A US3710482D A US 3710482DA US 3710482 A US3710482 A US 3710482A
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United States
Prior art keywords
components
belts
leads
bins
spacing
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Expired - Lifetime
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US00172429A
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English (en)
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J Grafford
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Rowe International Inc
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Rowe International Inc
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    • 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
    • H05K13/0038—Placing of components on belts holding the terminals placing the components in a predetermined order
    • 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
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship
    • Y10T156/1751—At least three articles
    • Y10T156/1754—At least two applied side by side to common base

Definitions

  • ABSTRACT A semi-automatic sequencing machine for facilitating the formation of a string of electrical components in a predetermined sequence with a certain spacing therebetween in which an operator removes components two at a time from bins arranged in a predetermined sequence on an index table, drops them into guides which deposit them on pitch belts with said certain spacing between successive teeth, and then actuates a control concomitantly to index the table through a distance corresponding to the space occupied by the bin or bins containing the removed components and to advance the pitch belts two components by means of transfer wheels which carry the leads of two components into the nips between pairs of pressure wheels which apply tapes to the leads to form the string which extends to a take-up reel.
  • the equipment produced requires as components thereof some printed circuitry.
  • the printed circuitry constitutes only a relatively small part of the overall manufacturing operation so that the manufacture of the printed circuits is not a full time operation. It will readily be apparent that such an operation does not justify the great expense involved in the purchase of a fully automatic sequencing machine. Nevertheless, owing to labor saving, an automatic component inserting machine may be warranted so that the operation of preparing component strings for use on the component inserting machine is a difficult and time consuming operation.
  • the automatic component inserting machine requires an attendant who, though not occupied full time with the inserting machine, has insufficient spare time to make up the required tapes. Either a full time employee is required to assemble component tapes or they must be obtained from an outside source.
  • My semi-automatic sequencing machine facilitates the operation of forming a string of electrical components in a predetermined sequence with a predetermined spacing therebetween. It is appreciably less expensive than is a fully automatic sequencing machine. It permits more efficient use of labor. It reduces the cost of assembling circuit boards. It is relatively trouble free and requires little maintenance. It is highly flexible in its application.
  • One object of my invention is to provide a semi-automatic sequencing machine which facilitates the operation of forming a string of electrical components in a predetermined order with a certain spacing therebetween.
  • Another object of my invention is to provide a semiautomatic sequencing machine which facilitates the operation of preparing strings of electrical components for use in an automatic component inserting machine.
  • Still another object of my invention is to provide a semi-automatic sequencing machine which permits more efficient use of labor.
  • Yet another object of my invention is to provide a semi-automatic sequencing machine which is appreciably less expensive than is a fully automatic sequencing machine.
  • a still further object of my invention is to provide a semi-automatic sequencing machine which requires little maintenance.
  • Yet another object of my invention is to provide a semi-automatic sequencing machine which is flexible in its application.
  • my invention contemplates the provision of a semi-automatic sequencing machine for forming a string of electrical components arranged in a predetermined order with a certain spacing therebetween in which an operator takes components from bins arranged in sequence on an indexing table and drops them into guides which deposit the components on pitch belts and then operates a control concomitantly to index the table through a distance corresponding to the removed components and which drives transfer wheels which advance the belts and which feed the component leads with a predetermined spacing therebetween to the nips between pairs of pressure wheels which apply tapes to the leads to form the string which is fed to a take-up reel.
  • FIG. 1 is a fragmentary perspective view of a string of components formed by my semiautomatic sequencing machine.
  • FIG. 2 is a perspective view of my semi-automatic sequencing machine.
  • FIG. 3 is a top plan view of the indexing table of my semi-automatic sequencing machine.
  • FIG. 4 is a fragmentary sectional view of a portion of my semi-automatic sequencing machine taken along the line 4-4 of FIG. 3.
  • FIG. 5 is a fragmentary perspective view of a portion of the component advancing section of my semi-automatic sequencing machine.
  • FIG. 6 is a fragmentary plan view of the component advancing tape applying section of my semi-automatic sequencing machine.
  • FIG. 7 is a fragmentary sectional view of the tape applying and take-up mechanism of my semi-automatic sequencing machine, taken along the line 7 7 of FIG.
  • FIG. 8 is a schematic view of one form of electrical circuit which may be used to control the operation of my semi-automatic sequencing machine.
  • a string indicated generally by the reference character 10 of a plurality of components 12 having respective leads 14 and 16 is held in assembled condition by respective lengths of pressure sensitive tape or the like 18 and 20 and 22 and 24.
  • the components 12 are arranged in a predetermined order along the length of the string 10 with a certain spacing between adjacent components as required by the component inserting machine (not shown) with which the string is used.
  • the string 10 formed on my semi-automatic machine is such that the outer surfaces of the tapes 20 and 24 are substantially flat while the tapes 18 and 22 bulge at the locations of the leads 14 and 16 of the components 12.
  • my semi-automatic sequencing machine indicated generally by the reference character 26 includes a supporting framework indicated generally by the reference character 28 made up of a plurality of legs 30 which support a central stationary table 32.
  • the frame 28 carries a plurality of spaced bearings 34 which rotate around horizontal axes to support an annular bin receiving table 36 for movement around a vertical axis.
  • a plurality of guide bearings 38 carried by the frame 28 and rotatable around vertical axes guide the table in its movement.
  • a motor 40 is adapted to be energized in a manner to be described to drive a friction wheel 42 or the like in engagement with the inner periphery of table 36 to rotate the table around its axis.
  • 1 form each of the bins 46 with two compartments 48 and 50 each of which is adapted to hold a supply of components 12. In this manner, an operator stationed at a working location can pick a component from each compartment of the bin positioned at that location for insertion into the component handling mechanism to be described hereinbelow.
  • I provide table 36 with a plurality of cam receiving pins 52 spaced around the table adjacent the inner periphery thereof. Each of the pins 52 is adapted to receive a lower cam 54 and an upper cam 56. Frame 28 supports a first normally closed switch 58 associated with lower cams 54. Each time a cam 54 strikes the actuating arm 60 of switch 58 the switch opens. I provide a second normally open switch 62 associated with the earns 56. Upon the arrival of a pin 52 carrying a cam 56 at the position of switch 62 the cam actuates the switch arm 64 to close the switch. I may provide the table 32 with a pointer 66 which indicates the bin 46 which is located at the operators working position.
  • the component handling mechanism indicated generally by the reference character 68 supported on a sub frame having spaced walls 70 and 72 supported on table 32.
  • a pair of shafts 74 and 76 rotatably supported in the side walls 70 and 72 carry pairs of rollers 78 and 80 and 82 and 84.
  • the rolls 78 and 82 support a first pitch belt 86 while the rolls 80 and 84 support a second pitch belt 88.
  • l form each of the belts 86 and 88 with teeth 90 having an inter-tooth spacing equal to the distance between adjacent components 12 in the final assembly.
  • a component guide is formed with a pair of downwardly tapering guide slots 96 and 98.
  • the operator picks a component from each compartment of the bin positioned adjacent pointer 66 and places them respectively in the pairs of chutes 96 and 98 so that the components are guided downwardly and their leads come to rest in spaces between adjacent teeth of the belts 86 and 88. Moreover, since the components in the bins are in the proper sequence, the components will be in the correct order on the belts 86 and 88.
  • a shaft 116 rotatably supported in the guide plates 70 and 72 carries respective spaced transfer wheels 1 l8 and 120 the edge of each of which is serrated to form teeth 122.
  • a gear motor 123 is adapted to be energized to drive shaft 116.
  • the teeth 122 of the respective wheels 118 and 120 extend into the spaces between adjacent teeth 90 of belts 86 and 88. Owing to that fact, as
  • Each of the guide slots 104 and 106 has a horizontal portion and a vertical portion connected by an arcuate portion at the periphery of the respective wheel 118 or 120 with which it is associated. Owing to this fact, as the teeth 122 leave the respective belts 86 and 88, they carry the components along the curved portions of the guide slots and upwardly into the vertical portions thereof.
  • the shaft 116 carries respective smooth-surfaced from pressure rolls 124 and 126 immediately outboard of the wheels 1 18 and 120.
  • Another shaft 128 rotatably supported in the side plates and 72 supports respective rear pressure rolls 130 and 132 which cooperate with the wheels 124 and 126.
  • I provide each of the wheels 130 and 132 with peripheral notches or recesses 134 having a circumferential spacing corresponding to the intertooth spacing between teeth of the belts 86 and 88.
  • Respective stub shafts 136 and 138 rotatably supported in side plates 70 and 72 carry rolls of pressure sensitive tapes 24 and 20 which are trained around the undersides of the respective pressure rolls 124 and 126 and upwardly into the nips between respective pairs of rolls 124 and 130 and 126 and 132.
  • Stub shafts 140 and 142 rotatably supported in the respective plates 70 and 72 carry rolls of pressure sensitive tapes 22 and 18 which are trained around the undersides of the respective rolls 130 and 132 and upwardly into the nips between the pairs of rolls 124 and 130 and 126 and 132.
  • the arrangement is such that the adhesive sides of the tapes 22 and 24 and of the tapes l8 and 20 face each other.
  • the number and size of the teeth 122 on the wheels 118 is such that the inter-component space of the components 12 being moved off the belts 86 and 88 is preserved.
  • their leads l4 and 16 respectively enter into the nip between the tapes 22 and 24 into the nip between the tapes 18 and 20.
  • the leads 14 and 16 respectively enter into notches 134 of roll and into the notches 134 of roll 132.
  • the string 10 of components is formed.
  • String 10 extends upwardly to a take-up reel 144 rotatably supported on a frame extension 146 and driven by a constant torque motor 148.
  • I provide a roll 149 of separation paper 150 which is wound onto reel 144 together with the string of components 12.
  • I mount a disc 152 of opaque material on shaft 116 for rotation therewith.
  • Disc 152 is provided with a plurality of spaced notches or openings 154 corresponding to the number of teeth 122 in the transfer wheels.
  • a source of radiation such as an infrared diode 156 at one side of the periphery of the disc is aligned with a sensor 158 such, for example, as a heat sensitive transistor so that the transistor puts out a signal each time one of the notches or openings 154 is located in the space between the source 156 and the sensor 158.
  • I measure the amount of rotation of the transfer wheels and thus the amount of belts 86 and 88 have advanced.
  • I provide my machine 26 with a foot switch 160 which is actuated by the operator each time she has placed a pair of components into the guide assembly. If desired, I may mount a lamp 162 on the frame to provide a source of illumination for the operator.
  • one form of electrical circuit which I may employ to control the operation of my sequencing machine includes respective conductors 164 and 166 connected to the terminals 168 and 170 of a suitable source of potential.
  • An on/off switch 172 may be operated to connect line 164 to a conductor 174.
  • I connect lamp 162 and the reel takeup motor 148 directly between conductor 174 and line 166.
  • Foot switch 160 is adapted to be actuated to connect conductor 174 to the table drive motor 40 through a manually operable cutout switch 176.
  • motor 40 As soon as motor 40 is energized it moves one of the earns 54 out of engagement with arm 60 to permit switch 58 to close to hold the circuit of motor 40 after switch 160 is released.
  • switch 58 is opened and the circuit of motor 40 is interrupted.
  • the control circuit shown in FIG. 8 includes a counter 178 adapted to receive signals at respective terminals 180, 182 and 184 to set the counter respectively at counts of 1, 2 or 3. In response to the presence of signals at those input terminals the counter produces outputs at binary output terminals 186 and 188 the signals of which are coupled to a two-input OR circuit which energizes a relay winding 194 to close a normally open switch 196 connected in series with gear motor 124 between conductor 174 and line 166. The pulses produced by the heat sensitive switching device 158 are applied to a count down terminal 190 of counter 178 to cause it to step downwardly from the count to which it has been set to zero.
  • Foot switch 160 in addition to energizing the table motor 40 applies a signal to the two count input terminal 182 to set the counter 178 to a count of two.
  • a push button switch 198 may be actuated to apply a signal to terminal 180 to set the counter for a count of one to jog the belt as desired.
  • the end of cycle switch 62 is adapted to apply the signal from switch 160 to terminal 184 to set the counter 178 to a count of three.
  • I assume that the sequence includes 24 various components.
  • I first place components in the proper sequence in the compartments 48 and 5,0 of a number of bins.
  • I then arrange the bins on the table 36 in the proper sequence.
  • I am able to arrange three full sequences on the table 3 6.
  • As I set the bins on the table I apply cams 54 and 56 to the pins 52 as required. That is, I place a cam 54 on each pin 52 adjacent to which I have positioned a bin 46. I also apply a cam 56 to the pin 52 associated with the last bin of each sequence. The machine is now ready for operation.
  • the operator first picks two components out of the first bin of a sequence and drops them into the guides 96 and 98. These two components are positioned on the belts 86 and 88 by the guides 92 and 94.
  • the operator presses foot switch to energize table motor 40 which permits switch 58 to close so that the table will be driven through a distance corresponding to the distance between successive bins.
  • an input is applied to terminal 182 of counter 178 so that the counter puts out a signal to energize winding 194 to close switch 196 to energize drive motor 123 to drive wheels ll 18 and 120.
  • wheel 152 is driven and sensor 158 puts out a pulse each time the wheel 152 goes through one step.
  • switch 198 can be employed to index the belt through one step at a time so as to correlate belt movement with table movement or for any other reason.
  • switch 176 can be opened to cut out the table so that the operator can take a number of components from the same bin.
  • l have accomplished the objects of my invention.
  • l have provided a semi-automatic sequencing machine which facilitates the operation of preparing a string of components in a predetermined sequence with a certain spacing therebetween.
  • My machine facilitates preparation of such a string for use on an automatic component inserting machine. It permits the most efficient use of available labor. It is considerably less expensive than a fully automatic sequencing machine. It requires very little maintenance.
  • Apparatus for forming a string of components in a predetermined sequence and with a certain spacing therebetween including in combination, means for supporting component supplies in said sequence, means for driving said supporting means successively to move said supplies past a working station, means for receiving components removed from said supplies and for positioning said components with said spacing therebetween, means for interconnecting components fed thereto to form a string thereof, means for advancing said positioning means toward said interconnecting means and means for transferring components from said positioning means to said interconnecting means while maintaining said spacing.
  • Apparatus as in claim 1 including bins for holding said supplies, and in which said supporting means carries a plurality of said bins and in which said driving means comprises means for stepping said supporting means through a distance of one bin on each operation of said apparatus.
  • Apparatus as in claim 1 including means responsive to said driving means for actuating said advancing means.
  • Apparatus as in claim 3 including bins for holding said supplies, each of said bins having n compartments for holding n supplies and in which said supporting means carries a plurality of bins and in which said driving means comprises means for stepping said supporting means through a distance corresponding to one bin on each operation of said apparatus and in which said advancing means steps said positioning means through a distance equal to n times said spacing on each operation of said apparatus, in which n is at least 2.
  • Apparatus as in claim 1 including a take-up reel for receiving said string from said interconnecting means.
  • Apparatus for forming a string of components having leads in a predetermined sequence and with a certain spacing therebetween including in combination, means including a pitch belt for positioning components fed thereto with said spacing therebetween, means for applying a length of tape to the leads of components fed thereto from a string of components, said pitch belt adapted to advance components thereon toward said tape applying means, and means for transferring components from said belt to said applying means while maintaining said spacing therebetween.
  • said transferring means comprises a toothed wheel having an intertooth spacing corresponding to the space between said belt teeth, means mounting said wheel for rotary movement with adjacent teeth thereof adapted to receive therebetween the lead of a component from said belt and a stationary guide leading from said belt to said tape applying means, said wheel adapted to advance said leads along said guide from said belt to said applying means.
  • said tape applying means comprises respective pressure rolls forming a nip therebetween, said transferring means adapted to feed component leads into said nip.
  • Apparatus as in claim.7 including guide means for directing components fed thereto onto said belt.
  • Apparatus for forming a string of components having generally oppositely extending leads in a predetermined sequence and with a certain intercomponent spacing including in combination, respective laterally spaced pairs of pressure wheels forming nips adapted to receive component leads, means for supplying tape to sa'id nips, a shaft supporting one pressure wheel of each pair for movement therewith, respective toothed wheels carried by said shaft for movement therewith, a pair of spaced pitch belts extending from a work location to second location adjacent to the peripheries of said wheels, said belts adapted to receive lead of components fed to said belts at said work location to support said components in spaced relationship, said wheels having an intertooth spacing substantially equal to the pitch of said belts, said wheels being positioned on said shaft with the wheel teeth adapted to engage said belts, respective stationary guides extending from said second locations to said nips, adjacent teeth of said wheels adapted to receive therebetween component leads to carry said leads off said belts and along said guides into said nips, and means for driving said shaft to advance
  • Apparatus as in claim 12 in which one pressure roller of each pair has axial slots around its periphery with an interslot spacing substantially equal to said belt pitch.
  • Apparatus as in claim 12 including a funnel-like guide at said work location for directing components fed thereto to said belts.
  • Apparatus as in claim 12 including a take up reel for receiving a string of connected components from said tape applying means.
  • Apparatus as in claim 12 including a support for holding a plurality of component supplies arranged in said sequence and means for driving said support successively to move said supplies past said work station.
  • Apparatus as in claim 16 including means for concomitantly energizing said shaft drive means and said support drive means.
  • Apparatus as in claim 12 including a plurality of bins, each of said bins having two compartments for holding supplies of components, a table for receiving said bins in a sequence determined by said component sequence, means mounting said table for successive movement of said bins to said work location, means for driving said table, actuatable means for concomitantly greater than twice said spacing in response to said actuatable means.
  • said shaft driving means comprises a motor, a counter adapted to be set to a predetermined count, actuatablc means for setting said counter and means responsive to rotation of said shaft for reducing the count of said counter.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
US00172429A 1971-08-17 1971-08-17 Semi-automatic sequencing machine Expired - Lifetime US3710482A (en)

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US17242971A 1971-08-17 1971-08-17

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US (1) US3710482A (enrdf_load_stackoverflow)
JP (1) JPS4831454A (enrdf_load_stackoverflow)
CA (1) CA962939A (enrdf_load_stackoverflow)
GB (1) GB1399357A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797093A (en) * 1972-10-30 1974-03-19 Rowe International Inc Improved semi-automatic component sequencing machine
US4253291A (en) * 1978-12-11 1981-03-03 Matsushita Electric Industrial Co., Ltd. Electronic components assembly apparatus and method for making
US4927051A (en) * 1987-10-26 1990-05-22 Unidynamics Corporation Multiple-product merchandising machine
US5048717A (en) * 1987-10-26 1991-09-17 Unidynamics Corporation Multiple-product merchandizing machine
US5285926A (en) * 1987-10-26 1994-02-15 Unidynamics Corporation Multiple-product merchandising machine
US6296546B1 (en) * 1997-08-08 2001-10-02 Speedfam-Ipec Corporation Index table and drive mechanism for a chemical mechanical planarization machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5636933Y2 (enrdf_load_stackoverflow) * 1976-03-31 1981-08-31
JPS5635191Y2 (enrdf_load_stackoverflow) * 1976-05-10 1981-08-19
JPS52143186A (en) * 1976-05-24 1977-11-29 Hitachi Ltd Taping device
JPS5319147A (en) * 1976-08-07 1978-02-22 Fuji Adobansu Kk Plating device for semiconductor wafer
DE3040392A1 (de) * 1980-10-25 1982-05-27 Georg Rudolf 8411 Zeitlarn Sillner Pruefvorrichtung
JPS5989790A (ja) * 1982-11-15 1984-05-24 Nippon Steel Corp 電気めつきにおける通電ロ−ルへの金属の電着を防止する方法
NL1005408C2 (nl) 1997-02-28 1998-08-31 Alexander Franciscus Maria Haf Inrichting bestemd voor montage op een trekhaak teneinde schade bij botsingen te minimaliseren.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391474A (en) * 1964-12-18 1968-07-09 Int Research & Dev Co Ltd Rotatable work assembly table and assembly method utilizing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391474A (en) * 1964-12-18 1968-07-09 Int Research & Dev Co Ltd Rotatable work assembly table and assembly method utilizing the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797093A (en) * 1972-10-30 1974-03-19 Rowe International Inc Improved semi-automatic component sequencing machine
US4253291A (en) * 1978-12-11 1981-03-03 Matsushita Electric Industrial Co., Ltd. Electronic components assembly apparatus and method for making
US4927051A (en) * 1987-10-26 1990-05-22 Unidynamics Corporation Multiple-product merchandising machine
US5048717A (en) * 1987-10-26 1991-09-17 Unidynamics Corporation Multiple-product merchandizing machine
US5285926A (en) * 1987-10-26 1994-02-15 Unidynamics Corporation Multiple-product merchandising machine
US5360134A (en) * 1987-10-26 1994-11-01 Unidynamics Corporation Multiple-product merchandising machine
US6296546B1 (en) * 1997-08-08 2001-10-02 Speedfam-Ipec Corporation Index table and drive mechanism for a chemical mechanical planarization machine

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GB1399357A (en) 1975-07-02
JPS4831454A (enrdf_load_stackoverflow) 1973-04-25
CA962939A (en) 1975-02-18

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