CA1168665A - Apparatus for the sequential transfer of metallic objects between conveyors - Google Patents
Apparatus for the sequential transfer of metallic objects between conveyorsInfo
- Publication number
- CA1168665A CA1168665A CA000362335A CA362335A CA1168665A CA 1168665 A CA1168665 A CA 1168665A CA 000362335 A CA000362335 A CA 000362335A CA 362335 A CA362335 A CA 362335A CA 1168665 A CA1168665 A CA 1168665A
- Authority
- CA
- Canada
- Prior art keywords
- conveyor
- transfer
- electromagnets
- row
- electromagnet
- 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
Links
Classifications
-
- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/92—Devices for picking-up and depositing articles or materials incorporating electrostatic or magnetic grippers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
- Intermediate Stations On Conveyors (AREA)
- Discharge Of Articles From Conveyors (AREA)
- Relays Between Conveyors (AREA)
- Specific Conveyance Elements (AREA)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
APPARATUS FOR THE SEQUENTIAL TRANSFER OF
METALLIC OBJECTS BETWEEN CONVEYORS
ABSTRACT OF THE DISCLOSURE
A transfer means is described which sequentially transfers metallic articles such as closure covers or the like from a first conveyor moving in one direction at one speed to a second conveyor moving in a differing direction at a differing speed. The transfer means includes a magnetic pickup for sequentially engaging the articles on the one conveyor and for adjusting the article speed and direction for their delivery to a second conveyor.
METALLIC OBJECTS BETWEEN CONVEYORS
ABSTRACT OF THE DISCLOSURE
A transfer means is described which sequentially transfers metallic articles such as closure covers or the like from a first conveyor moving in one direction at one speed to a second conveyor moving in a differing direction at a differing speed. The transfer means includes a magnetic pickup for sequentially engaging the articles on the one conveyor and for adjusting the article speed and direction for their delivery to a second conveyor.
Description
BAC~GRo~1ND OF THE INVE~lT:ION
The present invention relates to means for sequentially transferring a group of articles in an article manufacturing operation from one conveyor to another. ~ore particularly, it relates to a means for ef~iciently and effectively transferring articles in sequence from a straight line conveyor moving at one speed in one direction to a row conveyor moving in a differing direction and at a differing speed.
The manufacture of metallic objects including closure cap covers and the like has normally used certain steps in their manufacture to trans~er the articles from one conveyor to another. Such transfers have previously been accomplished for example, by physically engaging the articles with guides or plungers or other transfer means to push the articles from one conveyor to another conveyor, Certain articles are transferred only with considerable difficulty by these prior devices, and in particular, relatively flat articles are not effectively transferred by known apparatus, Also, present transfer devices do not handle articles with wet or uncured gaskets or coatings on thPir surfaces without damaging these coatings or gaskets~ A closure cover which is relatively flat and which also has a ring-like gasket on its upper surface and which is normally transferred duxing cap manufacturing from a single line conveyor to an oven row conveyor while the gasket is still liquid, is illustrated, for example, in United States Patent 3,913,771 dated October 21, 1975.
The apparatus of the present invention provides for an effec-tive and rapid sequential trans~er of such articles from one conveyor to another conveyor and par-ticularly from single line conveyors to row-type conveyors.
This transfer is made by the improved apparatus of the present invention by means which magnetically and sequentially engages and lifts a group of articles from one conveyor and which then moves them to the second conveyor along a path and at a velocity which matches that of the article receiving conveyor. The second conveyor, for example, may be a row conveyor for an oven or other article treating means which cures or otherwise treats the gasket portion or other portions of the transferred articles.
~n improved transfer apparatus is described for intermitt-ently transferring rows of magnetically engageable articles from a straight line conveyor to a row conveyor comprising the combination of means for movably supporting a plurality of electromagnets, and means for mounting and for driving said supporting means for movement on a path from a posi-tion ~0 above one said conveyor to a position above the other said conveyor.
Said driving means comprises a drive motor operatively coupled to said electromagnet support means for moving it :Erom one of said positions to the other. Said eletromagnet support means is an elongated member with said electromagnets being mounted in spaced relation in a row thereon with ' `
circuit means for sequentially energizing said elec-tromagnets including means for detecting the first arriving article on said straight line conveyor and for energizing the second electromagnet in the row of electromagnets and with means for detecting said late arriving articles and for ~ I
t~
sequentially energizing said additional electromagnets in the row.
BRIEF DESCRIPTION OF T~E
DRAWINGS
A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawings, forming a part of the specification, wherein:
FIGS. 1 and 2 are top plan views of the preferred embodiment of the transfer apparatus of the present invention in the cap pick-up and release positions, respectively.
FIGS. 3 and 4 are side elevational views of the transfer apparatus of FIGS. 1 and 2 in the successive positions.
FIG. 5 is a schematic diagram of the electrical control system for the transfer apparatus of the present invention.
- ~ - ~
6~;5 FIG, ~ is a loyic diagram for the control system of the present invention.
DESCRIPTION OF THE PREFERRED EMBoDIr5ENT
_ The drawings illustrate à preferred embodiment of the invention for transferring metallic objects such as closure cap covers from a straight line conveyor to a row conveyor. The particular example illustrated shows an apparatus 1 for transferring metal closure covers 2 having ring-like gaskets 3 on their upper surfaces from the gasket applying station ~ to a gasket-curing oven-8. The closure covers 2 are carried to the transfer means 1 on the straight line conveyor with random spacing and with the gasket 3 still soft and uncured.
The transfer apparatus 1 periodically removes the endmost group of closure covers 2 from the single line conveyor 5 and carries them to a broad belt or row conveyor 7 ofa gasket curing oven 8. On the row conveyor 7, spaced rows of closures are advanced through the curing oven ~.
The transfer means includes an elongated transfer bar 9 mounting a number of electromagnets 10, The transfer bar 9 is slidably mounted on transverse bearing rods 11 to permit the magnet transfer bar 9 to be moved from the pickup positiGn illustrated in FIG. 1 to the release position above the row conveyor 7 as illustrated in FIG. 2. The movement of the transfer bar 9 between these two positions is done by a suitable drive cylinder such as the air operated cylinder 14.
An electrical system is provided which energizes the magnets 10 in a sequential ~anner under the control of the arriving closure covers 2. This system, which wi.ll be further described below, has proximity detectors 12 at each electromagnet. As the endmost closure cover 2 on the straight line conveyor 5 reaches the endmost electromagnet 10 its proximity sensor detectors 12 activate that magnet 10.
At the same time this sensing circuit then energizes the second electromagnet detecting system so that the arrival of the next closure~-cover-2 at the second electromagnet 10 proximity detector 12 energizes it. This proceedure occurs successively or sequentially for:each of the suFceeding electromagnets 10 until a closure cover 2 is detected and engaged by the last electromagnet 10, When the last losure cover 2 has been detected and engaged the circuit energizes the power cylinder 14 which moves the transfer bar 9 from the single line conveyox at the position illustrated in FIGS, 1 and 3 to the release position lllustrated in FIGS. 2 and 4, The transfer bar 9 is mounted on a pair of spaced slide bearings 15 on slide rods 11. This permits the transfer bar 9 to be moved from a position above the straight line conveyor 5 as illustrated in FIGS. 1 and 3 to a position above the row conveyor 7 as illustrated in FIGS. 2 and 4, The transfer bar 9 has a bearing 15 mounted at each end which slidably supports the transfer bar on the spaced slide rods 11. The drive cylinder 14 is mounted on a suit-able support frame 17 and its piston 18 is pivotally i3 ~ ~
attached at l9 to the tra~sfer bar 9.
The straight line conveyor 5 continues to present the closure cap covers 2 to a transfer position below the transfer bar 9. During the transfer cycle, the tra~sfer bar 9 returns from a prior cover transfer to its pickup position before the endmost cap cover 2 is moved on conveyor 5 beneath the end magnet lO on the transfer bar 9. When this cover 2 arrives at a transfer position on the straight line conveyor 5 and adjacent to the end magnet lO on the transfer bar 9, it is detected by the proximity detector 12 for energizing the related electromagnet closure cap pickuplO.
The following closure caps moving on the single line conveyor 5 successively activate the second and third and the additional eleetromag~Qts lO in the same manner.
When a closure~cap cover 2 has activated the last deteetor 12 on the transfer bar 9, that closure cap cover 2 is engaged by a related electromaqnet lO and the transfer bar 9 is moved by the drive cylinder 14 to carry all of the engaged closure cap covers 2 from the straight line conveyor 5 to the cap release poirt above the row conveyor 7, When the transfer bar reaches this point it operates the elosure eover release switchLS2 to deactivate all of`the eleetromagnets lO and to drop all of the transferred closure covers 2 to the row conveyor 7 for movement through the curing oven 8.
THE ELECTRO.~AGNET CONT~OL
CIRCUIT
The electromagnet control circuit 21 for the cap transporting magnets 10 is illustrated in PIG. 5 and the related logic diagram is shown in FIG. 6.
~ 3~ , The magnet control circuit 21 is powered by a regular commercially available power circuit such as a 115 volt A.C. circuit 22. This power circuit includes an on-off switch 23, and a fuse 24 and an indicator lamp 37. A number of control amplifiers 25 and a D.C. rectifier 26 are illustrated connected across the power circuit 22.
The rectifier control circuit 26 converts the 115 volt A.C. power supply to a 24 volt D.C. power source for the cap transfer magnets 10.
Described generally, the control circuit 21 operates as follows. Each of the amplifiers 25 controls one of the cap piekup magnets 10. When the transfer bar 9 is adjacent to the straight line conveyor 5, a fixst ampl1fier 25 is energized so that its sensor 12 closes the relay contacts 27 for activating the next-amplifier 25 and contacts 28 for connecting the first pickup magnet 10 across the 24 volt D.C~ rectifier output. With the second amplifier 25 now activated, its sensor 12 upon detecting the next closure cap 2 in line, closes the relay contacts 29 to activate the third~amplifier 25 and contacts 30 to energize the seeond cap pickup magnet 10. This action continues for eaeh of the suceessive ampliflers 25 and the asso-eiated cap pickup magnets 10. The last amplifier 25 in the line operates the control relay CRl for closing the air motor 14 eontrol valve 31 for advancinq the transfer bar 9 to its cap release position over the row conveyor 7. The advancement of the transfer bar 9 to this position opens switehes LS2, L53 and LS4 to deactivate the magnets 10 for releasing the caps 2 and to open the air motor control valve 31 while elosing the second return control valve 32 causing the air motor 14 to return the transfer bar 9 to its cap pickup position above the qtraight line conveyor 5.
~ v~r~
The above circuit and its operation will now be described in greater detail with reference to the schematic diagram FIG. 5 and the related logic diagram FIG. 6.
Refer~ing to the upper left hand corner of FIG. 6 and to the identified components of FIG. 5, the sequence is initiated with the transfer bar 9 at its pickup position above the straight line conveyor 5~ At this point, the limit switch Lsl is closed through contact with the transfer bar 9. Limit switches LS2, LS3 and LS4 have normally closed contacts which remain closed for this position of the transfer bar 9. This position of these limit switches energizes the first amplifier 25 and the associated sensor 12 so that it is in a position to detect the first closure cap 2 to arrive on the straight line conveyor 5. Upon the detection of the first closure cap 2 the contacts 27 in the first amplifier 25 are closed causing the next amplifier 25 to be activated and causing the first pickup magnet 10 to be energized by being coupled to the output of the rectifier 26. A similar amplifier activation and pickup magnet energizing now occurs successively for the number of amplifiers used which corresponds to the number of pickup magnets illustrated as eleven in FIG. 1, When the sensor 12 for the last amplifier 25 detects a cap 2, it energizes the last pickup magnet 10 and, since li~it switches LS3 and LS4 are close~, its contact 29 activates both the air mo~or advance valve 31 and relay CRl~ The transfer bar 9 is now moved by the air motor 14 to its cap release position over the row conveyor 7 at which position limit switch LSl reopens and limit switches LS2, L53 and Ls4 are opened, This opens the relay CR2 to turn off the amplifiers 25 to release the closure caps 2 from the transfer har 9, and closes the valve 32 for again returning the transfer ~ar 9 to its position above the straight line conveyor 5 for the next transfer cycle, _9_ .
The magnets may have a small reverse current bias effective when the plus 24 volts is removed to insure a quic~
cap release or a small negative voltage may be applied at the release time by the rectifier 26.
It will be seen that an improved cap transfer device has been described as advantageous for use with caps arriving on one conveyor with random spacing, such as a straight line conveyor, and for transferring them to a second conveyor, where the caps are aligned in regular rows. The i~proved transfer device, including its control circuit, is relatively simple yet reliable and effective for continually performing such a cap transfer.
As various changes may be made in the form, construction an-d arrangemen-t of the parts herein without sacrificing any of its advantages, it is to be understood that all matter herein is to ba interpreted as illustrative and not in a limiting sense.
,
The present invention relates to means for sequentially transferring a group of articles in an article manufacturing operation from one conveyor to another. ~ore particularly, it relates to a means for ef~iciently and effectively transferring articles in sequence from a straight line conveyor moving at one speed in one direction to a row conveyor moving in a differing direction and at a differing speed.
The manufacture of metallic objects including closure cap covers and the like has normally used certain steps in their manufacture to trans~er the articles from one conveyor to another. Such transfers have previously been accomplished for example, by physically engaging the articles with guides or plungers or other transfer means to push the articles from one conveyor to another conveyor, Certain articles are transferred only with considerable difficulty by these prior devices, and in particular, relatively flat articles are not effectively transferred by known apparatus, Also, present transfer devices do not handle articles with wet or uncured gaskets or coatings on thPir surfaces without damaging these coatings or gaskets~ A closure cover which is relatively flat and which also has a ring-like gasket on its upper surface and which is normally transferred duxing cap manufacturing from a single line conveyor to an oven row conveyor while the gasket is still liquid, is illustrated, for example, in United States Patent 3,913,771 dated October 21, 1975.
The apparatus of the present invention provides for an effec-tive and rapid sequential trans~er of such articles from one conveyor to another conveyor and par-ticularly from single line conveyors to row-type conveyors.
This transfer is made by the improved apparatus of the present invention by means which magnetically and sequentially engages and lifts a group of articles from one conveyor and which then moves them to the second conveyor along a path and at a velocity which matches that of the article receiving conveyor. The second conveyor, for example, may be a row conveyor for an oven or other article treating means which cures or otherwise treats the gasket portion or other portions of the transferred articles.
~n improved transfer apparatus is described for intermitt-ently transferring rows of magnetically engageable articles from a straight line conveyor to a row conveyor comprising the combination of means for movably supporting a plurality of electromagnets, and means for mounting and for driving said supporting means for movement on a path from a posi-tion ~0 above one said conveyor to a position above the other said conveyor.
Said driving means comprises a drive motor operatively coupled to said electromagnet support means for moving it :Erom one of said positions to the other. Said eletromagnet support means is an elongated member with said electromagnets being mounted in spaced relation in a row thereon with ' `
circuit means for sequentially energizing said elec-tromagnets including means for detecting the first arriving article on said straight line conveyor and for energizing the second electromagnet in the row of electromagnets and with means for detecting said late arriving articles and for ~ I
t~
sequentially energizing said additional electromagnets in the row.
BRIEF DESCRIPTION OF T~E
DRAWINGS
A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawings, forming a part of the specification, wherein:
FIGS. 1 and 2 are top plan views of the preferred embodiment of the transfer apparatus of the present invention in the cap pick-up and release positions, respectively.
FIGS. 3 and 4 are side elevational views of the transfer apparatus of FIGS. 1 and 2 in the successive positions.
FIG. 5 is a schematic diagram of the electrical control system for the transfer apparatus of the present invention.
- ~ - ~
6~;5 FIG, ~ is a loyic diagram for the control system of the present invention.
DESCRIPTION OF THE PREFERRED EMBoDIr5ENT
_ The drawings illustrate à preferred embodiment of the invention for transferring metallic objects such as closure cap covers from a straight line conveyor to a row conveyor. The particular example illustrated shows an apparatus 1 for transferring metal closure covers 2 having ring-like gaskets 3 on their upper surfaces from the gasket applying station ~ to a gasket-curing oven-8. The closure covers 2 are carried to the transfer means 1 on the straight line conveyor with random spacing and with the gasket 3 still soft and uncured.
The transfer apparatus 1 periodically removes the endmost group of closure covers 2 from the single line conveyor 5 and carries them to a broad belt or row conveyor 7 ofa gasket curing oven 8. On the row conveyor 7, spaced rows of closures are advanced through the curing oven ~.
The transfer means includes an elongated transfer bar 9 mounting a number of electromagnets 10, The transfer bar 9 is slidably mounted on transverse bearing rods 11 to permit the magnet transfer bar 9 to be moved from the pickup positiGn illustrated in FIG. 1 to the release position above the row conveyor 7 as illustrated in FIG. 2. The movement of the transfer bar 9 between these two positions is done by a suitable drive cylinder such as the air operated cylinder 14.
An electrical system is provided which energizes the magnets 10 in a sequential ~anner under the control of the arriving closure covers 2. This system, which wi.ll be further described below, has proximity detectors 12 at each electromagnet. As the endmost closure cover 2 on the straight line conveyor 5 reaches the endmost electromagnet 10 its proximity sensor detectors 12 activate that magnet 10.
At the same time this sensing circuit then energizes the second electromagnet detecting system so that the arrival of the next closure~-cover-2 at the second electromagnet 10 proximity detector 12 energizes it. This proceedure occurs successively or sequentially for:each of the suFceeding electromagnets 10 until a closure cover 2 is detected and engaged by the last electromagnet 10, When the last losure cover 2 has been detected and engaged the circuit energizes the power cylinder 14 which moves the transfer bar 9 from the single line conveyox at the position illustrated in FIGS, 1 and 3 to the release position lllustrated in FIGS. 2 and 4, The transfer bar 9 is mounted on a pair of spaced slide bearings 15 on slide rods 11. This permits the transfer bar 9 to be moved from a position above the straight line conveyor 5 as illustrated in FIGS. 1 and 3 to a position above the row conveyor 7 as illustrated in FIGS. 2 and 4, The transfer bar 9 has a bearing 15 mounted at each end which slidably supports the transfer bar on the spaced slide rods 11. The drive cylinder 14 is mounted on a suit-able support frame 17 and its piston 18 is pivotally i3 ~ ~
attached at l9 to the tra~sfer bar 9.
The straight line conveyor 5 continues to present the closure cap covers 2 to a transfer position below the transfer bar 9. During the transfer cycle, the tra~sfer bar 9 returns from a prior cover transfer to its pickup position before the endmost cap cover 2 is moved on conveyor 5 beneath the end magnet lO on the transfer bar 9. When this cover 2 arrives at a transfer position on the straight line conveyor 5 and adjacent to the end magnet lO on the transfer bar 9, it is detected by the proximity detector 12 for energizing the related electromagnet closure cap pickuplO.
The following closure caps moving on the single line conveyor 5 successively activate the second and third and the additional eleetromag~Qts lO in the same manner.
When a closure~cap cover 2 has activated the last deteetor 12 on the transfer bar 9, that closure cap cover 2 is engaged by a related electromaqnet lO and the transfer bar 9 is moved by the drive cylinder 14 to carry all of the engaged closure cap covers 2 from the straight line conveyor 5 to the cap release poirt above the row conveyor 7, When the transfer bar reaches this point it operates the elosure eover release switchLS2 to deactivate all of`the eleetromagnets lO and to drop all of the transferred closure covers 2 to the row conveyor 7 for movement through the curing oven 8.
THE ELECTRO.~AGNET CONT~OL
CIRCUIT
The electromagnet control circuit 21 for the cap transporting magnets 10 is illustrated in PIG. 5 and the related logic diagram is shown in FIG. 6.
~ 3~ , The magnet control circuit 21 is powered by a regular commercially available power circuit such as a 115 volt A.C. circuit 22. This power circuit includes an on-off switch 23, and a fuse 24 and an indicator lamp 37. A number of control amplifiers 25 and a D.C. rectifier 26 are illustrated connected across the power circuit 22.
The rectifier control circuit 26 converts the 115 volt A.C. power supply to a 24 volt D.C. power source for the cap transfer magnets 10.
Described generally, the control circuit 21 operates as follows. Each of the amplifiers 25 controls one of the cap piekup magnets 10. When the transfer bar 9 is adjacent to the straight line conveyor 5, a fixst ampl1fier 25 is energized so that its sensor 12 closes the relay contacts 27 for activating the next-amplifier 25 and contacts 28 for connecting the first pickup magnet 10 across the 24 volt D.C~ rectifier output. With the second amplifier 25 now activated, its sensor 12 upon detecting the next closure cap 2 in line, closes the relay contacts 29 to activate the third~amplifier 25 and contacts 30 to energize the seeond cap pickup magnet 10. This action continues for eaeh of the suceessive ampliflers 25 and the asso-eiated cap pickup magnets 10. The last amplifier 25 in the line operates the control relay CRl for closing the air motor 14 eontrol valve 31 for advancinq the transfer bar 9 to its cap release position over the row conveyor 7. The advancement of the transfer bar 9 to this position opens switehes LS2, L53 and LS4 to deactivate the magnets 10 for releasing the caps 2 and to open the air motor control valve 31 while elosing the second return control valve 32 causing the air motor 14 to return the transfer bar 9 to its cap pickup position above the qtraight line conveyor 5.
~ v~r~
The above circuit and its operation will now be described in greater detail with reference to the schematic diagram FIG. 5 and the related logic diagram FIG. 6.
Refer~ing to the upper left hand corner of FIG. 6 and to the identified components of FIG. 5, the sequence is initiated with the transfer bar 9 at its pickup position above the straight line conveyor 5~ At this point, the limit switch Lsl is closed through contact with the transfer bar 9. Limit switches LS2, LS3 and LS4 have normally closed contacts which remain closed for this position of the transfer bar 9. This position of these limit switches energizes the first amplifier 25 and the associated sensor 12 so that it is in a position to detect the first closure cap 2 to arrive on the straight line conveyor 5. Upon the detection of the first closure cap 2 the contacts 27 in the first amplifier 25 are closed causing the next amplifier 25 to be activated and causing the first pickup magnet 10 to be energized by being coupled to the output of the rectifier 26. A similar amplifier activation and pickup magnet energizing now occurs successively for the number of amplifiers used which corresponds to the number of pickup magnets illustrated as eleven in FIG. 1, When the sensor 12 for the last amplifier 25 detects a cap 2, it energizes the last pickup magnet 10 and, since li~it switches LS3 and LS4 are close~, its contact 29 activates both the air mo~or advance valve 31 and relay CRl~ The transfer bar 9 is now moved by the air motor 14 to its cap release position over the row conveyor 7 at which position limit switch LSl reopens and limit switches LS2, L53 and Ls4 are opened, This opens the relay CR2 to turn off the amplifiers 25 to release the closure caps 2 from the transfer har 9, and closes the valve 32 for again returning the transfer ~ar 9 to its position above the straight line conveyor 5 for the next transfer cycle, _9_ .
The magnets may have a small reverse current bias effective when the plus 24 volts is removed to insure a quic~
cap release or a small negative voltage may be applied at the release time by the rectifier 26.
It will be seen that an improved cap transfer device has been described as advantageous for use with caps arriving on one conveyor with random spacing, such as a straight line conveyor, and for transferring them to a second conveyor, where the caps are aligned in regular rows. The i~proved transfer device, including its control circuit, is relatively simple yet reliable and effective for continually performing such a cap transfer.
As various changes may be made in the form, construction an-d arrangemen-t of the parts herein without sacrificing any of its advantages, it is to be understood that all matter herein is to ba interpreted as illustrative and not in a limiting sense.
,
Claims (6)
1. An improved transfer apparatus for intermitt-ently transferring rows of magnetically engageable articles from a straight line conveyor to a row conveyor comprising the combination of:
means for movably supporting a plurality of electromagnets;
means for mounting and for driving said supporting means for movement on a path from a position above one said conveyor to a position above the other said conveyor;
said driving means comprising a drive motor operatively coupled to said electromagnet support means for moving it from one of said positions to the other;
said electromagnet support means being an elongated member with said electromagnets being mounted in spaced relation in a row thereon;
circuit means for sequentially energizing said electromagnets including means for detecting the first arriving article on said straight line conveyor and for energizing the second electromagnet in the row of electromagnets; and means for detecting said late arriving articles and for sequentially energizing said additional electromagnets in the row.
means for movably supporting a plurality of electromagnets;
means for mounting and for driving said supporting means for movement on a path from a position above one said conveyor to a position above the other said conveyor;
said driving means comprising a drive motor operatively coupled to said electromagnet support means for moving it from one of said positions to the other;
said electromagnet support means being an elongated member with said electromagnets being mounted in spaced relation in a row thereon;
circuit means for sequentially energizing said electromagnets including means for detecting the first arriving article on said straight line conveyor and for energizing the second electromagnet in the row of electromagnets; and means for detecting said late arriving articles and for sequentially energizing said additional electromagnets in the row.
2. The transfer means as claimed in claim 1 which said circuit means comprises means for periodically reversing the current flow through said electromagnets.
3. The transfer means as claimed in claim 2 in which the current flow in a demagnetizing direction is a fraction of the magnetizing current flow.
4. The transfer apparatus as claimed in claim 1 in which said detectors comprise metal detecting proximity detectors.
5. The transfer apparatus as claimed in claim 1 in which said electromagnet energizing means comprise amplifiers.
6. The transfer means as claimed in claim 1 in which said driving means includes controlling electrical limit switches.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8482579A | 1979-10-15 | 1979-10-15 | |
| US084,825 | 1979-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1168665A true CA1168665A (en) | 1984-06-05 |
Family
ID=22187449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000362335A Expired CA1168665A (en) | 1979-10-15 | 1980-10-14 | Apparatus for the sequential transfer of metallic objects between conveyors |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS56127515A (en) |
| AU (1) | AU535425B2 (en) |
| BE (1) | BE885702A (en) |
| CA (1) | CA1168665A (en) |
| DE (1) | DE3038959A1 (en) |
| FR (1) | FR2467155B1 (en) |
| GB (1) | GB2068871B (en) |
| IT (1) | IT1188958B (en) |
| NL (1) | NL8005655A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0480369B1 (en) * | 1990-10-08 | 1994-08-31 | Mitsubishi Denki Kabushiki Kaisha | Wire-type electrical discharge machining device |
| CN102756913A (en) * | 2012-06-29 | 2012-10-31 | 宁波拓普集团股份有限公司 | Integrated electromechanical quick loading fixture |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2143026A (en) * | 1935-04-04 | 1939-01-10 | American Can Co | Transfer mechanism for articles |
| US2071859A (en) * | 1936-03-16 | 1937-02-23 | Leo E Steiner | Magnetic transfer device |
| US2280854A (en) * | 1939-01-04 | 1942-04-28 | American Can Co | Tray loading machine |
| JPS524383A (en) * | 1975-06-25 | 1977-01-13 | Kyoei Ind | Method for manufacturing bag having transparent window |
| JPS599123B2 (en) * | 1975-07-22 | 1984-02-29 | 株式会社クボタ | Hokougatideunouki |
-
1980
- 1980-10-14 NL NL8005655A patent/NL8005655A/en not_active Application Discontinuation
- 1980-10-14 IT IT49894/80A patent/IT1188958B/en active
- 1980-10-14 CA CA000362335A patent/CA1168665A/en not_active Expired
- 1980-10-14 FR FR8021935A patent/FR2467155B1/en not_active Expired
- 1980-10-14 BE BE202460A patent/BE885702A/en unknown
- 1980-10-15 GB GB8033271A patent/GB2068871B/en not_active Expired
- 1980-10-15 AU AU63273/80A patent/AU535425B2/en not_active Ceased
- 1980-10-15 DE DE19803038959 patent/DE3038959A1/en not_active Withdrawn
- 1980-10-15 JP JP14305480A patent/JPS56127515A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2467155A1 (en) | 1981-04-17 |
| AU6327380A (en) | 1981-04-30 |
| BE885702A (en) | 1981-02-02 |
| GB2068871A (en) | 1981-08-19 |
| FR2467155B1 (en) | 1986-01-31 |
| GB2068871B (en) | 1983-09-21 |
| JPS56127515A (en) | 1981-10-06 |
| IT8049894A0 (en) | 1980-10-14 |
| IT1188958B (en) | 1988-01-28 |
| DE3038959A1 (en) | 1981-04-23 |
| NL8005655A (en) | 1981-04-21 |
| AU535425B2 (en) | 1984-03-22 |
| IT8049894A1 (en) | 1982-04-14 |
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