WO1998049077A1 - Nouveau type de convoyeur et machine de traitement de surface equipee d'un tel convoyeur - Google Patents
Nouveau type de convoyeur et machine de traitement de surface equipee d'un tel convoyeur Download PDFInfo
- Publication number
- WO1998049077A1 WO1998049077A1 PCT/FR1998/000855 FR9800855W WO9849077A1 WO 1998049077 A1 WO1998049077 A1 WO 1998049077A1 FR 9800855 W FR9800855 W FR 9800855W WO 9849077 A1 WO9849077 A1 WO 9849077A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conveyor
- vertical
- elements
- track
- movement
- Prior art date
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
- B65G35/00—Mechanical conveyors not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/083—Transfer or feeding devices; Accessories therefor
Definitions
- the subject of the present invention is a new type of conveyor for transporting objects while making them pivot on themselves, these objects which may be raw or engineered parts to be transported opposite a surface treatment machine designed to deliver one or more several jets of treatment fluid, in liquid form and / or in the form of solid particles which may be abrasive particles, this machine without being limiting being able to be a washing machine, a shot blasting machine and other type of machine capable of being produced on each part of surface treatment operations such as washing, deburring, work hardening etc
- the linear conveyor comprising a frame, as well as a conveyor track suitable for the transport of objects between an upstream end, in relation to an object loading station and a downstream end, in relation to an unloading station of transported objects is essentially characterized in that
- the conveying track in the direction of the transport of the objects between the upstream end and the downstream end, is fixed relative to the conveyor
- the conveyor track is vertically deformable, and said conveyor track is deformed and swept by at least one transverse wave propagating from the upstream end to the downstream end, said wave, depending on the width of the conveyor track, forming two bosses separated by a hollow, between which is disposed at least one object which ensures on the one hand the transport of the object between the two ends of the conveyor and on the other hand its rotation on itself Thanks to this pivoting , the objects which can be mechanical parts in the course of fabrication, will present all their faces to the action of the processing machine, in this case to the action of a shot blasting machine with a view for example to deburring
- the conveying track will be swept by several successive waves.
- vertical elements movable in alternative vertical translation are provided, the upper ends of which form or carry the conveying track, said vertical elements being mobilized individually or in groups according to a reciprocating vertical movement by motor means, the motor means of the different elements or groups of elements being set relative to one another so that the reciprocating movement of each element or group of elements is offset in phase by relation to the reciprocating movement of the element (s) or group (s) of contiguous element (s)
- This arrangement is conducive to creating the transverse wave for transporting objects from one end to the other of the conveyor
- the vertical elements are mechanically connected in a floating manner to their drive motor means. This arrangement allows the pivoting of each vertical element with respect to the adjoining elements and eliminates or greatly reduces the risk of jamming of the parts. between two elements
- FIG. 2 is a cross-sectional view of the conveyor according to a preferred embodiment
- FIG. 3 is a front view of a vertical element according to a first embodiment
- FIG. 4 is a front view according to a first alternative embodiment of the upper part of the vertical element according to FIG. 3,
- FIG. 5 is a front view according to a second side view of the upper part of the vertical element according to Figure 3
- - Figure 6 is a cross-sectional view according to a third side view of the part upper of the vertical element according to FIG. 3,
- FIG. 7 is a perspective view of an element 5 according to a second embodiment
- FIG. 8 is a partial profile view, in section, of a conveyor track according to another embodiment
- FIG. 9 is a schematic view of a motor means of the conveyor according to the invention
- FIG. 10 is a sectional view along the line AA in FIG. 9,
- FIG. 11 is a schematic view from above of an engine assembly
- FIG. 12 is a partial schematic front view of the engine assembly
- FIG. 13 is a schematic view of an embodiment of actuation of the vertical elements in alternative vertical translation
- FIG. 14 is a schematic sectional view of a floating assembly of vertical elements
- the linear conveyor 1 comprises a frame 1a between the vertical blanks from which a conveyor track 2 is formed.
- This conveyor 1 is for example intended to transport metal parts opposite a processing machine capable of producing a jet of a treatment fluid and to direct this jet towards the conveyor track so that the transported parts are subjected to the action of the latter for a surface treatment which can be a deburring operation or other operations treatment depending on the nature of the material used for the formation of the jet
- the parts transported can therefore be rough metal foundry parts or even machined metal parts for which it is necessary to eliminate the burrs of fonde ⁇ e or machining.
- the pieces awaiting processing and loading on the conveyor 1 can be placed on a first storage area 3, adjoining the upstream end of the conveyor 1, while the treated pieces can be delivered by the conveyor 1 to a device for discharge 4 adjacent to the downstream end of the conveyor 1
- the conveyor track vertically deformable, is continuously swept, from the upstream end of the conveyor 1 towards the downstream end, by several successive transverse waves, each forming a separate hollow by two bosses between which are arranged for transport one or more objects, the bosses being perpendicular to the direction of advancement of the objects on the conveyor 1
- the conveyor track 2 is formed by the upper ends of vertical elements
- each element 5 has an upper edge 5a of rectangular outline whose longitudinal axis is perpendicular to the direction of movement of the pieces on the conveyor track, said conveyor track being formed by the upper edges of the so-called elements
- the vertically movable elements 5 are constituted, without this being limiting, by vertical plates These plates are arranged contiguously, perpendicular to the direction of advancement of the parts on the conveyor 1, and are aligned according to a row Because of these characteristics, the conveying path formed by the upper edges of the plates is undulating and is capable of driving the objects which it receives from one end of the conveyor 1 towards the other The entrainment of the objects from one end to the other of the conveyor 1 is carried out thanks to the individual actions of the plates on the objects during their movement as cendant, these plates during this movement, communicating to said objects a pivoting movement on themselves. By this pivoting, the objects which can be metallic parts requiring a mechanical treatment such as a deburring, will present all their faces to the action of the shot
- these plates are arranged at a small distance from each other, at a distance greater than the particle size of the jet formed.
- the plates will be spaced from one another from a few tenths of a millimeter to a millimeter and a half. It can therefore be seen that the size of the objects which can be transported by the conveyor 1 is only limited by the play between the plates. Thus with this conveyor 1 it is possible to transport both objects whose dimensions do not exceed one centimeter.
- the upper bank of each element in the direction of its width and considering the direction of advance of the parts on the conveyor 1, is inclined downward
- the angle of inclination may be a few tens of degrees
- the upper banks of the elements 5 may be inclined relative to the horizontal in the direction of their length along one or two slopes With such an arrangement, each element 5 is arranged so that the inclination of its upper bank 5a is reversed by relation to the inclination of the bank of contiguous element (s)
- the conveyor track along its entire length forms a deformable chute in the bottom of which the transported objects are constantly brought back
- the advantage of a such a characteristic essentially resides in the fact that the transported objects are automatically brought back and / or maintained in the central area of the runway, that is to say in the area where the action of the jet is optimal
- the upper bank 5a of each element 5 forms a Vee
- the elements 5 may all be of the same thickness, but according to a variant of execution, some of them may have a smaller thickness. arrangement the width of the orthogonal projection on a horizontal plane of the upper edge face of each of these elements 5, is smaller than the width of the orthogonal projection on a horizontal plane of the upper edge of the other elements This characteristic facilitates the reversal small objects that may not overturn as they pass along the banks of other elements
- the vertical elements 5 are constituted by pins These pins will be arranged in lines, transverse to the longitudinal axis of the conveyor 1 and in columns, parallel to said axis
- the pins of the same line will be joined together of the others so as to be immobilized with respect to each other
- the pawns of the same line by their lower end, may be fixed to a connecting bar
- the conveyor track 2 is constituted by a mat carried by the vertical elements 5 and fixed in a known manner to the latter with the possibility of relative sliding relative to their level or upper end.
- the mat is advantageously provided a plurality of through holes to allow the evacuation of products in the form of particles.
- the mat can be constituted by a wall made of flexible material, for example based on rubber or polyurethane, or by rigid articulated elements, or semi-rigid, forming slats, the axes of articulation of the slats to each other being perpendicular to the longitudinal axis of the conveyor 1
- the belt will be equipped with parallel battens , regularly spaced from each other and projecting from its upper face, these cleats being perpendicular to res to the direction of advancement of objects on the conveyor 1
- each transverse wave is formed by at least two vertical elements 5
- the transverse wave is formed by nine or ten elements
- the driving means 6 for driving is lateral to the frame 1a of the conveyor 1 so as to be clear of the trajectory of the particle jet.
- the zone of the conveyor 1 situated under the elements 5 can be equipped with a tray for recovering the abrasive material.
- Each vertical element 5 is provided at the lower end with two lateral arms 5b extending upwards, by the upper ends of which it is suspended by means 6 of corresponding motion transmission.
- the arms are external to the volume defined by the blanks of the conveyor 1
- Each arm by its upper end is located above the center of gravity of the element 5 which prevents the pivoting of the latter To these arms can be fixed springs recall of elements 5 in low position
- each motor drive means 6 comprises - a main actuating element 7, at least one secondary actuating element 8 fixed by one of its ends to the corresponding vertical element 5 and by its other end to the p ⁇ ncipal actuating element 7,
- At least one motor assembly 9 comprising at least one output element 10 on which an oscillating movement is available, said output element being integral with the main actuating element so that through the element of main actuation and of secondary element (s), an alternating vertical movement is transmitted to the vertical element 5 or to the group of associated vertical elements (s)
- the p ⁇ ncipal actuating element 7 and the secondary actuating element or elements 8 are each constituted by a flexible link capable of transmitting a tensile force, this link possibly being a cable or else a chain of the type with articulated links by example
- these flexible links are formed by multibnns cables.
- the cables are engaged on idler pulleys mounted freely in rotation on axes carried by the frame 1a of the conveyor 1
- Each secondary element is fixed by any known means to the corresponding arm 5b and one of the pulleys on which this element engages secondary is located above and in the axis of this arm so that the secondary element, between this pulley and the arm, develops vertically.
- the p ⁇ ncipal element 7, at a distance from the secondary element (s) 8, is fixed by its corresponding end to a fixed point of the frame 1 a of the conveyor 1 and the oscillating output element 10 of the assembly motor 9 is secured to the part of the main element, located between the fixed point and the secondary element (s) 8
- Each drive motor means 6 can be equipped with its own motor assembly 9 but for the sake of simplification, the conveyor 1 has only one motor assembly 9, the latter being common to all the motor means 6 and being associated with the oscillating elements 10 via a coupling means.
- the motor assembly 9 is constituted by an electric geared motor 11 comprising a rotary output shaft and the means for coupling this shaft with the various oscillating output elements may be constituted by a pinion 12 wedged on the output shaft of the gear motor 11 and by a chain 13 meshed on the one hand with the pinion 12 and on the other hand with several pinions 14; each pinion 14 being wedged on a rotary horizontal shaft 15 mounted on guide bearings and coupled to one of the oscillating output elements 10
- each output oscillating element 10 consists of a pulley 10a forming a cam, in the groove of which the main element is wound, and by an eccentric cake 10b on which the rotation is freely mounted.
- pulley groove 10a, said cake 10b being rotated by the motor assembly, more precisely by the corresponding shaft 15
- a ball bearing will be interposed between the pulley and the cake.
- each motor means 6 for driving comprises at least two oscillating output elements 10 and 10 'both cooperating with the main actuating element 7, l' amplitude and / or period of the oscillation movement of one being different from that of the oscillation movement of the other
- This self-disposing arrangement the formation of a non-sinusoidal wave, for example a wave having an enlarged hollow to contain and transport objects of large dimensions on the one hand and to be able to stop the pivoting movement of the object for one to two seconds on the other apart
- the amplitude of the movement of the first may be substantially double or triple the amplitude of the movement of the second and the frequency of oscillation of the movement. of the second will be twice the oscillation frequency of the movement of the first
- this arrangement makes it possible to simulate cams of complex shape on the one hand and to use pulleys of diameter compatible with the space available on the other hand
- the main cable 7, between the two oscillating elements 10 is wound around a pulley freely mounted in rotation on an axis fixed in a yoke fixed to the frame 1 a of the conveyor 1
- the two oscillating elements 10 and 10 ' when each constituted by a grooved pulley and an oil cake, will be coupled to each other by means of a movement transmission comprising a first pinion wedged on the 'shaft 15, a second pinion wedged on a shaft 15' mounted on bearings and coupled to the cake of the second element 10 'so as to drive said cake in rotation, and a transmission chain cooperating in engagement with the two pinions
- the latter will be constituted by a linear ve ⁇ n of the elect ⁇ que or hydraulic or pneumatic type.
- the oscillating element may be constituted by a roller provided with a groove in which the main cable engages. 7, this grooved roller being mounted freely in rotation on an axis carried by a yoke integral with the end of the rod of the valve
- the elements 5 are arranged in groups and the elements of each group are fixed by their end mfe ⁇ eure, has a support frame movably mounted in vertical translation This support frame is secured to a motor member d actuation in alternative vertical translation, this motor member being able to be constituted by a hydraulic, eiect ⁇ que, pneumatic or other ve ⁇ n
- This motor member being able to be constituted by a hydraulic, eiect ⁇ que, pneumatic or other ve ⁇ n
- the different frames will be mounted one inside the other and will be guided in vertical translation by columns
- the frames may also be actuated by rotary cams coupled to electric motors
- each element 5 is driven in a reciprocating translational movement by a motor member which is specific to it, this motor member preferably being a linear electric motor, for example an electric motor or other type of motor.
- the elements 5 are actuated individually by cams of suitable profile coupled to the same electric motor
- cams can act on thrust on their respective elements, either directly by action on a thrust surface formed on element 5, for example its lower edge, or indirectly via a pusher axis
- the cam can also act in traction on its element 5 by means of a link, articulated by one of its ends to a crank pin which it comprises and by its other end to element 5
- each element 5 is actuated individually by a link 16 articulated on the one hand to an axis integral with the element 5 and on the other hand to a chain 17 stretched between a driven pinion and a pinion leading, the two sprockets being mounted one above the other so that the chain between the sprockets is vertical.
- the driving pinion is coupled by means of a movement transmission suitable for an electric motor.
- the chain 17 is preferably driven in alternating rotation but, in idling, it can be driven in continuous rotation.
- the point of attachment of the link 16 to the chain will be driven in a reciprocating vertical movement along a vertical axis in the first case and with a lateral displacement in the second case
- a movement transmission and / or a motor member adapted to drive the chain 17 according to a reciprocating movement it will be possible to adjust the amplitude of the reciprocating movement of the fastening point as well as the frequency of this movement.
- the fastening points will be offset in height with respect to each other so as to obtain a phase shift of the movement from one element 5 to the other
- each plate 5 along its vertical median axis is provided with a blind cylindrical bore 18 opening into its horizontal lower edge, by which it is engaged with the possibility of limited rotation on a vertical cy nd ⁇ que guide 19 carried by a support beam 20, mfe ⁇ eure, horizontal, parallel to the large faces of the plate 5, projecting the vertical cylmd ⁇ que guide 19 and developing in part under the plate 5
- This beam 20 is fixed in cantilever on a slide 21, vertical mounted movably in vertical translation in guide bearings 22 fixed relative to the frame, said slide being secured to the drive motor means 6
- the pivoting mounting of the plate on the cylinder guide facilitates the release of the parts which would come to be disposed in the interval between two plates, this pivoting movement n 'being
- the slide 21 is lateral to the frame 1a of the conveyor
- the bearings 22 by their bearing body are rigidly fixed to the frame 1a
- the slide 21 is of cylindrical shape so that the assembly constituted by said slide 21, the main beam 20, the vertical guide 19 and the plate 5, can pivot around the vertical guide axis defined by the guide bearings 22 , this pivoting being able to be carried out on either side of a middle position
- an elastic member 23 is associated with the said assembly
- the elastic member consists of a spring 23, in the form of a blade, fixed by one of its ends to the lower beam 20, said spring 23 being also arranged between two stops 24, parallel, fixed relative to the frame 1 a
- each stop consists of a vertical rod fixed by its ex hoppers to an upper crossmember and to a lower crossmember
- the drive means 6 drive comprise a rail 25 fixed at the upper end of the slide 21, in which moves a thrust roller 26 rotatably mounted at the end of a lever 27 rotatably mounted on a horizontal shaft 28 fixed relative to the frame 1 a, said lever 27 being driven in pivoting upwards by a cam 29 mounted on a shaft cams 30, coupled to the rotary output shaft of an electric or hydraulic motor
- this cam comes to act in thrust on a roller integral with the lever
- the cam could moreover be provided with one or more bosses coming to act on the roller during its movement In this way is also communicated to the plate a movement of braiding
- the cam can be removably mounted on the camshaft for see to its replacement
- the various levers 27 will be pivotally mounted on the same shaft 28 This shaft will be fixed from place to place to supports rigidly fixed to the frame 1a Still for the sake of simplification, the various levers 27 will be pivotally mounted on the same shaft 28 This shaft will be fixed from place to place to supports rigidly fixed to the frame 1a Still
- the guide range which they define is greater than eight times the diameter of the slide
- this conveyor is provided in the same frame 1a with at least two conveyor tracks 2 arranged side by side, without separation so that the transported objects can pass during their movement from one track to another
- the movement of each element 5 of one of the tracks is shifted in phase with respect to the movement of the element located opposite and belonging to the other track
- the transverse waves sweeping the two tracks are offset in phase with respect to each other
- the plates 5 may be made of polyurethane or metal, for example manganese steel or treated steel or the like.
- the conveyor 1 can advantageously equip a surface treatment machine for rough foundry objects or else for finished or semi-finished machined objects, equipped with at least one means for producing a jet of a fluid directed towards the conveyor track and covering part or all of the length of this track in order to strike the transported objects and ensure their treatment
- the jets may be formed by liquids for example washing, degreasing, greasing and the like or by materials in solid particles which can be an abrasive to carry out blasting operations and others
- this machine is equipped with a casing secured to the frame 1 a delimiting with the conveyor track a treatment tunnel in which is injected in the form of at least one jet, by at least one turbine, a treatment fluid, said casing comprising an upper wall coming above and spaced from the runway conveyor 2 and two vertical parallel walls arranged laterally to conveyor 1 and masking at least the upper part of each vertical element
- the projection of the jet on the runway may be oblique to the longitudinal axis of the runway so as to be able to reach all the objects appearing under the jet regardless of their position on the runway
- the conveyor of the machine can be partially or entirely immersed in a treatment liquid contained in a suitable reservoir which can take the form of a tunnel Means for producing ultrasound and communicating these to the treatment liquid and by consequently, the objects transported will be associated with this tank.
- the processing machine may be equipped at the downstream end of the conveyor 1 with a device for transferring the objects to the upstream end of a second conveyor adjoining the first The downstream end of this second conveyor will advantageously be located at the upstream end of the first conveyor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98922889A EP1015360A1 (fr) | 1997-04-28 | 1998-04-28 | Nouveau type de convoyeur et machine de traitement de surface equipee d'un tel convoyeur |
AU75367/98A AU7536798A (en) | 1997-04-28 | 1998-04-28 | Novel type of conveyor and surface treatment machine equipped with same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR97/05436 | 1997-04-28 | ||
FR9705436A FR2762591B1 (fr) | 1997-04-28 | 1997-04-28 | Nouveau type de convoyeur et machine de traitement de surface equipee d'un tel convoyeur |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998049077A1 true WO1998049077A1 (fr) | 1998-11-05 |
Family
ID=9506528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/000855 WO1998049077A1 (fr) | 1997-04-28 | 1998-04-28 | Nouveau type de convoyeur et machine de traitement de surface equipee d'un tel convoyeur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1015360A1 (fr) |
AU (1) | AU7536798A (fr) |
FR (1) | FR2762591B1 (fr) |
WO (1) | WO1998049077A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU6706600A (en) * | 1999-08-17 | 2001-03-13 | Eric John Atherton | Barrier |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840090A (en) * | 1954-04-22 | 1958-06-24 | Fmc Corp | Conveyor |
GB1079548A (en) * | 1963-12-19 | 1967-08-16 | Mario Ballestra | Improved conveyor for powdered or granular materials |
US3841461A (en) * | 1972-07-20 | 1974-10-15 | Univ California | Singulator |
GB2114522A (en) * | 1982-02-09 | 1983-08-24 | John Stuart Wilson | Conveying by forming a travelling wave on the conveyor |
US4875309A (en) * | 1987-12-17 | 1989-10-24 | Pangborn Corporation | Disc cleaner |
-
1997
- 1997-04-28 FR FR9705436A patent/FR2762591B1/fr not_active Expired - Fee Related
-
1998
- 1998-04-28 EP EP98922889A patent/EP1015360A1/fr not_active Withdrawn
- 1998-04-28 AU AU75367/98A patent/AU7536798A/en not_active Abandoned
- 1998-04-28 WO PCT/FR1998/000855 patent/WO1998049077A1/fr not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840090A (en) * | 1954-04-22 | 1958-06-24 | Fmc Corp | Conveyor |
GB1079548A (en) * | 1963-12-19 | 1967-08-16 | Mario Ballestra | Improved conveyor for powdered or granular materials |
US3841461A (en) * | 1972-07-20 | 1974-10-15 | Univ California | Singulator |
GB2114522A (en) * | 1982-02-09 | 1983-08-24 | John Stuart Wilson | Conveying by forming a travelling wave on the conveyor |
US4875309A (en) * | 1987-12-17 | 1989-10-24 | Pangborn Corporation | Disc cleaner |
Also Published As
Publication number | Publication date |
---|---|
EP1015360A1 (fr) | 2000-07-05 |
FR2762591A1 (fr) | 1998-10-30 |
AU7536798A (en) | 1998-11-24 |
FR2762591B1 (fr) | 1999-07-09 |
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