GB2171380A - Apparatus and method for transporting a workpiece in a desired direction - Google Patents
Apparatus and method for transporting a workpiece in a desired direction Download PDFInfo
- Publication number
- GB2171380A GB2171380A GB08531188A GB8531188A GB2171380A GB 2171380 A GB2171380 A GB 2171380A GB 08531188 A GB08531188 A GB 08531188A GB 8531188 A GB8531188 A GB 8531188A GB 2171380 A GB2171380 A GB 2171380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- workpiece
- driven
- pairs
- arms
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000000717 retained effect Effects 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 1
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
- B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
- B65G25/02—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having different forward and return paths of movement, e.g. walking beam conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Specific Conveyance Elements (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Reciprocating Conveyors (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
An apparatus and method for transporting a workpiece in a desired direction includes first and second lateral arms (30) eccentrically mounted to first and second pairs of driven members (14,16). A medial carrier (102) is mounted in an opposite phase relationship on first and second following members (98). The lateral arms (30) and the medial carrier (102) each carry upstanding paddles for alternately engaging a workpiece supported on the upper surfaces (76) of timing belts (20). The apparatus may be mounted on the sloping wall of a hopper containing a plurality of the workpieces and may include an arcuate portion (116) for redirecting a workpiece to a desired location on a plane intersecting that of the sloping wall. <IMAGE>
Description
SPECIFICATION
Apparatus and method for transporting a workpiece in a desired direction
The present invention relates, in general, to apparatuses and methods for transporting a workpiece in a desired direction. More particularly, the present invention relates to an apparatus and method of especial utility in the removal of products from stock, for example, an elongate workpiece, and its concurrent transportation in a direction parallel to, or in a desired direction from, the sloping wall of a container or hopper holding a plurality of the workpieces.
Numerous applications exist which necessitate the removal of individual workpieces from a stockpile thereof. Manual retrieval is, of course, one alternative but is time consuming, slow and tedious labour and a most undesirable limiting factor in the subsequent automated handling of such workpieces.
It is generally convenient in the automated handling of workpieces, especially those of a generally elongated shape, to input a large number of them into a hopper or bin such that they are aligned with their respective longitudinal axis. While there is an advantage in initially handling these objects in bulk, they must nonetheless generally be removed or retrieved from the stock for individual presentment to subsequent handling or testing equipment. This subsequent handling or testing equipment may be located either parallel to the sloping wall of the hopper or in a horizontal or vertical direction with respect thereto.With the availability of an automated equipment to supply the workpieces to the subsequent handling equipment regardless of its direction with respect to a hopper containing the workpieces, such subsequent handling steps can thereafter be carried out with maximum efficiency and with a minimum of supervision.
It is therefore an object of the present invention to provide an improved apparatus and method for transporting a workpiece in a desired direction.
It is further an object of the present invention to provide an improved apparatus and method for transporting a workpiece in a desired direction which is useful in automating the removal and concurrent redirection of individual workpieces from a stock of a plurality thereof to a subsequent handling station.
It is still further an object of the present invention to provide an improved apparatus and method for transporting a workpiece in a desired direction which is economicaliy and efficiently effectuated.
The foregoing and other objects are achieved in the present invention wherein there is provided an apparatus for transporting a workpiece comprising a base structure having first and second generally parallel and spaced apart frame members having respective upper surface thereof. First and second pairs of driven members are rotatably secured laterally of the first and second frame members respectively. First and second pairs of following members are rotatably secured medially of the first and second frame members, the first and second pairs of driven and following members being coaxially and oppositely disposed with respect thereto.
An eccentrically mounted pivot is affixed to each of the first and second pairs of driven and following members, the pivots of the driven and following members having a generally opposite phase relationship therebetween. First and second arms have a plurality of paddles secured to an upper edge thereof laterally adjacent the frame member upper surfaces. The first and second arms are rotatably secured to the pivots of the first and second pairs of the driven members respectively. A carrier has a like plurality of paddles secured to an upper edge thereof medially adjacent the frame member upper surfaces. The carrier is rotatably secured to the pivots of the first and second pairs of the following members.In operation, successive workpieces may be translationally transported along the upper surfaces of the first and second frame members by alternate engagement by the paddles of the first and second arms and the carrier respectively by rotational motion imparted to the driven members. In other embodiments, the first and second arms and the carrier may include an arcuate portion for redirecting transportation of the workpiece to a desired location lying in a plane other than that of the base structure frame members.
Also provided is a method for transporting a workpiece which comprises the steps of supporting the workpiece on a base structure having first and second generally parallel and spaced apart frame members having respective upper surfaces thereof.
First and second pairs of driven members are rotatably retained laterally of the first and second frame members respectively. First First and second pairs of following members are additionally rotatably retained medially of the first and second frame members to the first and second pairs of driven members respectively. The first and second pairs of driven and following members are coaxially and oppositely disposed with respect thereto. Pivots are affixed eccentrically to each of the first and second pairs of driven and following members, the pivots of the driven and following members having a generally opposite phase relationship therebetween. First and second arms are rotatably secured to the pivots of the first and second pairs of the driven members respectively.The first and second arms have a plurality of paddles secured to an upper edge thereof laterally adjacent the frame member upper surfaces. A carrier is additionally rotatably secured to the pivots of the first and second pairs of the following members. The carrier has a like plurality of paddles secured to an upper edge thereof medially adjacent the frame member upper surfaces. The first and second pairs of the driven members are rotationally driven and the workpieces are alternately engaged by the paddles of the first and second arms and the carrier respectively.
The foregoing and other features and objects of the present invention and the manner of attaining them will become more apparent and the invention itself will be best understood by reference to the followind description of an embodiment of the present invention taken in conjunction with the accompanying drawings, wherein::
Figure 1 is a partially cut-away, side plan view of a transport apparatus in accordance with the present invention showing the relative phase relationship between the lateral paddles of the lateral arms and the medial paddles of the medial carrier, the latter being shown in phantom;
Figure 2 is a partial top plan view of the transport apparatus of Figure 1 showing the timing belts for rotationally driving the driven members to which the lateral arms are pivotally secured;
Figure 3is a .ut-way end plan view taken substantially along line A-A of Figure 2, and showing the interrelationship of the driven and following members and their eccentrically connected arms and carrier for transporting a workpiece as shown;;
Figures 4a-4g illustrate the translational transportation of a workpiece having a generally trapezoidal cross-section by means of the circular motion of the paddles of the lateral arms and medial carrier at 30 increments from 0 to 1800; and
Figure 5 is a simplified side plan view of a transport apparatus in accordance with the present invention having an arcuate portion for redirecting the transportation of a workpiece from a plane parallel to the sloping wall of a hopper to a subsequent handling station displaced horizontally therefrom.
With reference to Figure 1, a transport apparatus 10in accordance with the present invention is shown. Transport apparatus 20 comprises, in pertinent part, base structure 12 including a pair of generally parallel and spaced apart frame members. First and second driven members 14, 16 are rotatably retained laterally of the frame members of base structure 12. As shown, additionally in Figure 2, first and second driven members 14 and 16 are positioned generally opposite each other laterally of base structure 12. Corresponding drive sheaves 18 are likewise rotatably retained within base structure 12 for imparting rotational motion to first and second driven members 14 and 16 by means of respective timing belts 20. First driven members 14 rotate about drive access 22 while second driven members 16 similarly rotate about drive access 24.
Referring additionally now to Figure 3, lateral eccentric pivots 58 are each afficed eccentrically to first and second driven members 14, 16 as shown.
In this manner, as will be more fully described hereinafter, lateral arms 30 are rotatably secured to lateral eccentric pivots 58 such that they revolve about first lateral eccentric axis 26 and second lateral eccentric axis 28 of the first and second driven members 14, 16 respectively.
Lateral arms 30 comprise a generally rectangular structural element having a stock end 32 and opposite end 34. Lateral arms 30 include a plurality of upstanding lateral paddles 40 affixed to an upper surface thereof. Lateral paddles 40 include a plurality of interstitial spaces 42 therebetween. Lateral paddles 40 include crest 44 while interstitial spaces 42 define a root 46. A workpiece surface 48 is defined on the sloping portion of each of lateral paddles 40 as shown. The pitch of lateral paddles 40 is defined as "L" which is of sufficient physical dimension to accommodate a workpiece 100 within one of intestitial spaces 42 such that it may rest either upon root 46 or belt upper surface 96 of timing belts 20 as will be more fully described hereinafter.
Drive sheaves 18 comprise a sheave 50 having a toothed periphery 52 for imparting a driving motion to belts 20 as shown. The rotational motion imparted to belts 20 causes rotation to first and second driven members 14,16 which comprise sheaves 52 having a toothed periphery 56.
With particular reference to Figure 3, the interconnection of first driven members 14 to first following members 98 is shown. The description of this portion of transport apparatus 10 will suffice for that of second driven members 16 and second following members 106. Lateral arms 30 comprise a bar 60 having a bearing 62 fit therein. Bearing 62 circumferentially engages lateral eccentric pivot 58 as shown. Lateral eccentric pivot 58 is affixed securely to first driven members 14 as shown. First driven members 14 are rotatably retained within bearings 82 secured to base structure 12 by means of collars 104. First driven members 14 are secured to respective first following members 98 by means of bolt 66 such that first driven members 14 and respective first following members 98 rotate in consonance.First following members 98 comprise a disc 64 having a medial eccentric pivot 98 comprise a disc 64 having a medial eccentric pivot 68 affixed thereto. Medial eccentric pivot 68 extends through bearing 72 secured to a bar 70 of medial carrier 102. In this manner, medial carrier 102 is rotatably secured to medial eccentric pivots 68 such that it will rotate about first medial eccentric axis 74.
Medial carrier 102 includes a plurality of medial paddles 76 upstanding therefrom. Medial paddles 76 correspond to lateral paddles 40 of lateral arms 30. Medial paddles 76 include a crest 78 while interstitial spaces 120 define root 80.
Rotational movement to transport apparatus 10 is supplied, as shown in Figure 2, by means of drive belt 84 imparting rotational motion to power transfer sheave 86 comprising sheave 88. Sheave 88 is affixed to axle 90 which is rotatably retained through the frames of base structure 12. Axle 90 revolves about axis 92 within collars 94 for imparting rotational movement to drive sheaves 18 as shown.
In the embodiment illustrated, workpiece 100 is supported on belt upper surface 96 of timing belts 20. In this regard, timing belts 20 function as a moving guide for workpiece 100. In alternative embodiments, workpiece 100 may be supported by means of the upper surfaces of the parallel and spaced apart frames of base structure 12.
Referring additionally now to Figure 4a-4g, the operation of transport apparatus 10 in conjunction with workpiece 100 is shown. By rotational motion imparted to drive sheaves 18 as shown in Figure 1, workpiece 100 will be transported from input end 108 of transport apparatus 10 to output end 110.
As shown in what is defined as a 0 position, corresponding pairs of an individual one of lateral paddles 40 of lateral arms 30 engages workpiece 100 at workpiece surface 48 between crest 44 and root 46 of interstitial space 42. Workpiece 100, in the embodiment shown, is supported on belt upper surface 96. As lateral arms 30 rotate a position 30 clockwise, workpiece 100 remains in contact with workpiece surface 48 of the lateral paddles 40.
As lateral arms 30 rotate an additional 30 to the 60 position, workpiece 100 begins to approach crest 44 of the individual ones of the corresponding lateral paddles 40 of lateral arms 30. At the 90" position crest 44 of lateral paddles 40 and crest 78 of medial paddles 76 are in a generally coplanar relationship with workpiece 100 remaining in contact at this point with workpiece surface 48 of lateral paddles 40. As lateral arms 30 and medial carrier 102 continue to rotate in a generally opposite phase relationship, that is 1800 out of phase, at the 1200 position workpiece 120 adjoins workpiece surface 112 of an individual one of medial paddles 76. Workpiece 100 remains supported by belt upper surface 96.As shown through the 1500 to 1800 positions, workpiece 100 is thereafter carried along belt upper surface 96 by motion imparted to it by workpiece surface 112 of medial paddles 76. The transportation of workpiece 100 along belt upper surface 96 proceeds as above described by the alternate engagement of the workpiece by respective pairs of lateral paddles 40 and medial paddles 76.
In this embodiment shown, lateral arms 30 and medial carrier 102 have an opposite phase relationship due to the 1800 eccentrically between first lateral eccentric axis 26 and second lateral eccentric axis 28 with respect to first medial eccentric axis 74 and second medial eccentric axis 114.
With particular reference to Figure 1 and 5, lateral arms 30 and medial carrier 102 may additionally incorporate respective arcuate portions 36 and 116 respectively. Arcuate portions 36 and 116 allow the redirection of the transportation of workpiece 100 from a plane parallel to the sloping surface of a hopper or bin containing a plurality of workpieces 100 as shown in Figure 5 to a generally horizontal or other direction with respect thereto. In this embodiment of transport apparatus 10, workpiece 100 would initially engage transport apparatus 10 ajdacent stock end 32 for movement past opposite end 34 to presentation end 38. In like manner, workpiece 100 would engage medial carrier 102 for subsequent transportation to presentation end 118.
Thus, by the addition of arcuate portions 26 and 116 to lateral arms 30 and medial carrier 102 respectively it is possible to change the direction of the transportation of workpiece 100 from a direction parallel to the sloping wall of a bin containing a plurality of workpieces 100 to either a horizontal direction as shown in Figure 5, or any other direction up through vertical by means of the same transport apparatus 10. Such transportation of a workpiece 100 in a desired direction is made possible because all points on the rotating lateral arms 30 and medial carrier 102 including their respective lateral paddles 40 and medial paddles 76 are simultaneously making a circular movement with respect to base structure 12. It should be noted, that a change in the phase between the pickups comprising lateral paddles 40 and medial paddles 76 will occur with respect to workpiece 100.
What has been provided therefore is an improved apparatus and method for transporting a workpiece in a desired direction. The apparatus and method of the present invention is useful in the removal from and redirection of individual workpieces from a stock of a plurality thereof to a subsequent handling station which might be located either parallel to or at an angle with respect to the sloping wall of a hopper containing the workpieces. The apparatus and method for transporting a workpiece in a desired direction of the present invention may be economically and efficiently effectuated utilizing suitable structural materials for the various portions heretofore described.
While there have been described above the principles of the present invention in conjunction with specific apparatus, it is to be clearly understood that the foregoing description is made only by way of example and not as a limitation to the scope of the invention.
Claims (22)
1. An apparatus for transporting a workpiece comprising:
a base structure having a first and second generally parallel and spaced apart frame members having respective upper surfaces thereof;
first and second pairs of driven members rotatably secured laterally of said first and second frame members respectively;
first and second pairs of following members rotatably secured medially of said first and second frame members, said first and second pairs of driven and following members being coaxially and oppositely disposed with respect thereto;
an eccentrically mounted pivot affixed to each of said first and second pairs of driven and following members, said pivots of said driven and following members having a generally opposite phase relationship therebetween;;
first and second arms having a plurality of paddles secured to an upper edge thereof laterally adjacent said frame member upper surfaces, said first and second arms being rotatably secured to said pivots of said first and second pairs of said driven members respectively; and
a carrier having a like plurality of paddles secured to an upper edge thereof medially adjacent said frame member upper surfaces, said carrier being rotatably secured to said pivots of said first and second pairs of said following members
whereby successive workpieces may be translationally transported along said upper surfaces of said first and second frame members by alternate engagement by said paddles of said first and sec ond arms and said carrier respectively by rotational motion imparted to said driven members.
2. The apparatus as claimed in claim 1, wherein said base structure upper surface comprises a guide for said workpiece.
3. The apparatus as claimed in claim 1, wherein said first and second pairs of driven members comprise sheaves.
4. The apparatus as claimed in claim 3, wherein said sheaves are driven by a timing belt.
5. The apparatus as claimed in claim 4, wherein said timing belt functions as a moving guide for supporting said workpieces.
6. The apparatus as claimed in claim 1, wherein said first and second pairs of driven and following members are rotatably retained in a bearing extending through said base structure.
7. The apparatus as claimed in claim 1, wherein said eccentrically mounted pivots comprise shafts extending through said first and second arms and said carrier.
8. The apparatus as claimed in claim 7, wherein said first and second arms and said carrier include bearings for rotatable retention to said shafts.
9. The apparatus as claimed in claim 1, wherein said phase relationship is substantially 1800.
10. The apparatus as claimed in claim 1, wherein said paddles include a crest and root portion having sufficient physical separation to engage said workpiece.
11. The apparatus as claimed in claim 1, further comprising a container of said workpieces having a sloping wall thereof for supporting said apparatus.
12. The apparatus as claimed in claim 1, wherein said first and second arms and said carrier include an arcuate portion thereof for transporting said workpiece in a desired direction to a point lying in a plane intersecting that of said frame member upper surfaces.
13. A method for transporting a workpiece comprising the steps of:
supporting a workpiece on a base structure hav
ing first and second generally parallel and spaced
apart frame members having respective upper surfaces thereof;
rotatably retaining first and second pairs of driven members laterally of said first and second frame members respectively;
additionally rotatably retaining first and second
pairs of following members medially of said first
and second frame members to said first and sec
ond pair of driven members respectively, said first
and second pairs of driven and following members
being coaxially and oppositely disposed with re
spect thereto;
affixing eccentrically mounted pivots to each of
said first and second pairs of driven and following
members, said pivots of said driven and following
members having a generally opposite phase rela
tionship therebetween; rotatably securing first and
second arms to said pivots of said first and second
pair of said driven members respectively, said first
and second arms having a plurality of paddles se
cured to an upper edge thereof laterally adjacent
said frame member upper surfaces;
additionally rotatably securing a carrier to said pivots of said first and second pairs of said following members said carrier having a like plurality of paddles secured to an upper edge thereof medially adjacent said frame member upper surfaces;
rotationally driving said first and second pairs of said driven members; and
alternately engaging said workpiece by said paddles of said first and second arms by said carrier respectively.
14. The method as claimed in claim 13 wherein said step of rotationally driving is carried out by means of a timing belt.
15. The method as claimed in claim 14, wherein said step of supporting is carried out by means of an upper surface of said timing belt in conjunction with said frame member upper surfaces.
16. The method as claimed in claim 13, wherein said steps of rotatably retaining are carried out by means of a shaft end bearing.
17. The method as claimed in claim 13 wherein said step of affixing is carried out by means of shafts.
18. The method as claimed in claim 13, wherein said steps of rotatably securing are carried out by means of a bearing fixed through said first and second arms and said carrier for rotational retention of said shafts.
19. The method as claimed in claim 13 further comprising the step of:
mounting said base structure on a sloping wall of a hopper containing a plurality of said workpieces.
20. The method as claimed in claim 19 further comprising the step of:
providing arcuate portions to said first and second arms and said carrier for redirecting said workpieces to a point on a plane intersecting that of said sloping wall.
21. Apparatus for transporting a workpiece substantially as hereinbefore described with reference to the accompanying drawings.
22. A method for transporting a workpiece substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70464185A | 1985-02-22 | 1985-02-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8531188D0 GB8531188D0 (en) | 1986-01-29 |
| GB2171380A true GB2171380A (en) | 1986-08-28 |
| GB2171380B GB2171380B (en) | 1988-11-16 |
Family
ID=24830332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08531188A Expired GB2171380B (en) | 1985-02-22 | 1985-12-18 | Apparatus and method for transporting a workpiece in a desired direction |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS61235324A (en) |
| DE (1) | DE3605673A1 (en) |
| FR (1) | FR2577908A1 (en) |
| GB (1) | GB2171380B (en) |
| NL (1) | NL8600399A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017207149A1 (en) | 2017-04-27 | 2018-10-31 | Theegarten-Pactec Gmbh & Co. Kg | Method and device for the stepwise transport of products along a transport route |
| CN112079045A (en) * | 2020-09-03 | 2020-12-15 | 杭州唛扑网络科技有限公司 | Cultural goods class book product is printing paper raw materials conveyor components in batches |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242848A (en) * | 1925-03-04 | 1925-11-19 | Suisse Soc Ind | Improvements in conveyors for packing machines |
| GB1326322A (en) * | 1970-09-21 | 1973-08-08 | Nippon Kokan Kk | Transfer apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB796470A (en) * | 1956-09-03 | 1958-06-11 | Meyer Geo J Mfg Co | Improvements in or relating to article-orienting mechanisms for conveyors |
| US3547249A (en) * | 1968-11-27 | 1970-12-15 | Filper Corp | Feeder |
| DE2839392A1 (en) * | 1978-09-11 | 1980-03-13 | Heinz Nienstedt | Machine tool system for refacing timber sleepers - has transporter with eccentric actuated beams for aligning sleepers |
-
1985
- 1985-12-18 GB GB08531188A patent/GB2171380B/en not_active Expired
-
1986
- 1986-02-17 NL NL8600399A patent/NL8600399A/en not_active Application Discontinuation
- 1986-02-20 FR FR8602886A patent/FR2577908A1/en active Pending
- 1986-02-21 DE DE19863605673 patent/DE3605673A1/en not_active Withdrawn
- 1986-02-21 JP JP3718786A patent/JPS61235324A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB242848A (en) * | 1925-03-04 | 1925-11-19 | Suisse Soc Ind | Improvements in conveyors for packing machines |
| GB1326322A (en) * | 1970-09-21 | 1973-08-08 | Nippon Kokan Kk | Transfer apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2171380B (en) | 1988-11-16 |
| DE3605673A1 (en) | 1986-08-28 |
| FR2577908A1 (en) | 1986-08-29 |
| NL8600399A (en) | 1986-09-16 |
| JPS61235324A (en) | 1986-10-20 |
| GB8531188D0 (en) | 1986-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19941218 |