WO1991008972A1 - Procede et dispositif d'empilage de demi-produits cylindriques en metal - Google Patents
Procede et dispositif d'empilage de demi-produits cylindriques en metal Download PDFInfo
- Publication number
- WO1991008972A1 WO1991008972A1 PCT/BE1990/000071 BE9000071W WO9108972A1 WO 1991008972 A1 WO1991008972 A1 WO 1991008972A1 BE 9000071 W BE9000071 W BE 9000071W WO 9108972 A1 WO9108972 A1 WO 9108972A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- semi
- products
- cylindrical
- cylindrical semi
- stacking
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
- B21D43/285—Devices for handling elongated articles, e.g. bars, tubes or profiles
-
- 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
- B65G57/00—Stacking of articles
- B65G57/02—Stacking of articles by adding to the top of the stack
- B65G57/16—Stacking of articles of particular shape
- B65G57/18—Stacking of articles of particular shape elongated, e.g. sticks, rods, bars
Definitions
- the present invention relates to a method of stacking cylindrical metal semi-finished products, in particular solid cylinders, such as in particular aluminum billets, comprising
- sawing installations are known intended for cutting cylindrical bars or metal trunks into solid cylinders called billets, which are semi-finished products intended for further processing.
- These trunks can for example come from a semi-continuous casting process implemented in a foundry of secondary aluminum smelting.
- the object of the present invention is to remedy these drawbacks and in particular to develop a method and a stacking device of the type described at the start, which allow perfect automatic stacking of the cylindrical metal semi-finished products from sawing, to sufficient speed to follow the sawing capacity of the sawing station.
- this method and this device must allow selective stacking of the billets, in particular according to their length, their diameter, their alloy, etc.
- This method and this device must if possible exclude any manual intervention or reduce it, for example to an operator commanding certain operations determined from the control console used for sawing.
- the method and the device should preferably simultaneously allow marking of the sawn cylindrical semi-finished products. They will advantageously be compact.
- a drive thereof to at least one deposition location each deposition location being situated at a level higher than the stack to be formed thereon
- each cylindrical semi-finished product extends horizontally, the abovementioned lowering being effected by downward translation of each cylindrical semi-finished product in a vertical direction, the process further comprising a relative step-by-step movement between the depot location and the corresponding transport vehicle, in vertical projection, so as to allow the deposition of the successive cylindrical semi-products one beside the other as well as one above the other others in the aforementioned exact stacking position.
- Stacking is therefore no longer from the bottom and one side of the transport vehicle, but from the top, and the cylindrical semi-finished product reaches its position directly on the stack, without having to roll over the previous semi-finished products. stacked.
- the semi-finished product drive involves an elevation of the semi-finished product cylindrical sawn to the above level.
- the installation can comprise at least two different deposition locations and the method then comprises a selective guiding of the cylindrical semi-products towards one or the other location. This makes it possible in particular to simultaneously stack semi-finished products having different lengths in separate stacks.
- the method upstream of each deposition location, the method comprises an advancement of the cylindrical semi-finished products towards it in a direction and, in front of the deposition location, an accu ⁇ mulation of semi-finished products stored parallel to each other and perpendicular to this direction.
- a stacking device as indicated at the start, this device comprising - a transfer path for the semi-finished cylindrical products, located downstream of a sawing station,
- At least one stacking station each comprising a deposit location to which the transfer path and respectively the cylindrical semi-products driven on it and which is located above a corresponding transport vehicle, at a higher level to the pile to be formed on the latter,
- each stacking station means for lowering the cylindrical semi-finished products, mounted so that they can be moved between a high position, in which they take care of each cylindrical semi-finished product driven to the location of corresponding deposit, and a lower position, in which they deposit the lowered cylindrical semi-finished product, directly in an exact stacking position of the stack to be formed,
- each deposit location is designed to receive the cylindrical semi-finished products in a horizontal position
- the lowering means perform a vertical movement between their upper position and their lower position, so as to allow a translation of the lowered cylindrical semi-finished products
- the device comprises means of step-by-step movement of the transport vehicle and / or of the corresponding deposit location, which are capable of moving them relative to each other in vertical projection, so as to allow, in the lower position of the lowering means, a deposit, at each step, of the successive cylindrical semi-products in the position of the aforementioned exact stacking.
- the transfer path comprises, upstream of each stacking station, an accumulation ramp on which the semi-finished products are advanced towards the corresponding deposit location, in a direction, and are, in front of it, arranged parallel to each other and perpendicular to this direction.
- the lowering means comprise a gantry with two vertical uprights, a clamp with two jaws, a horizontal shaft which is mounted at its two ends on the vertical uprights of the gantry so as to be able slide on them and which supports the two jaws so as to allow horizontal sliding of at least one of said jaws, clamping means of the jaws, which, in the clamped state, are capable of gripping between them a cylindrical semi-finished product brought to the corresponding deposit location, and means for driving the horizontal shaft to slide along the amounts of the gantry.
- the transfer path comprises an elevator of the cylindrical semi-finished products, capable of raising them to the aforementioned level and interposed between two sections of the transfer path.
- the stacking device comprises a device for marking a front end of each of the cylindrical semi-products driven along the transfer path.
- Figure 1 shows a schematic plan view of a sawing and stacking installation according to the invention.
- FIG. 2 represents a schematic side view of a device for extracting the billets out of the transfer path and of a system for transferring the billets to a level higher than the stack to be formed.
- FIG. 3 represents a partial plan view of FIG. 2.
- the figure represents a schematic plan view, on an enlarged scale, of the accumulation ramps and of the stacking stations of the installation according to FIG. 1.
- Figure 5 shows a side view of Figure ft.
- Figure 6 shows a front view of the clamp.
- FIGS 7 and 8 show two transport vehicles and two types of batteries that can be formed.
- FIG. 9 represents a schematic view of the step-by-step training of a transport vehicle.
- the exemplary embodiment illustrated represents an installation for sawing aluminum billets.
- logs to be sawn must be brought to the tail leu leu on a feed line 1 so as to enter one behind the other in the sawing station 2 known per se.
- the axis of the saw blade is designated by the reference 3.
- the billets are transferred to a stacking station by means of a transfer channel.
- this transfer path comprises a first transport section formed by a hinged chain 6 driven by a gear motor not shown, two elevators 7 and 8 and a passage ramp 9 allowing the descent of the billets on one side of the hinged chain, their passage below the latter and their ascent on the other side of the chain, a second transport section formed by a bench 10 with rollers in the form of diabolos, driven in rotation to convey the billets and an accumulation section 11 leading to the stacking station.
- the billets will be deposited on a transport vehicle 12, which is traveling here on railway tracks 13.
- the billets 1 are stacked according to standard configurations like the pyramid-type stack shown in FIG. 7 and the stacking of the rectangular type shown in FIG. 8.
- the platform 98 of the vehicles 12 is slightly inclined relative to the horizontal, in a known manner, and the upper and lower ends of the stacks are retained by wedging elements 15 or 16 respectively.
- each loaded vehicle is brought, in the embodiment illustrated in FIG. 1, by the tracks 13 on a ferry 17. This then brings the loaded vehicle, by displacement on transverse tracks 18, to exit routes 19 on which the loaded vehicle is transferred and dispatched to a later destination. Empty vehicles return to the stacking station via tracks 20 and the same ferry 17.
- the hinged chain 6 drives carrying elements 21 which receive the billet cut so that the axis 23 of the latter is arranged parallel to the direction of advancement of the chain.
- the hinged chain 6 slides on a tilting frame 22 which is supported on one side, on the right in FIG. 2, by at least one support element 23 fixed to a horizontal crosspiece 24 of a frame 25 (see FIG. 1 ).
- the tilting frame is supported in a manner not shown, but so as to be able to pivot around an axis 26.
- the tilting frame 22 is connected to a support element 23 by means of a jack 27.
- the rod 28 of this jack in the extended position swings up and to the left the tilting frame 22 and with it the hinged chain and the billet 1 driven by the latter. In this position, sketched in broken lines, the billet 14 is ejected laterally to the left towards the elevator 7.
- the jack 27 is only actuated when the billets passing over the hinged chain 6 are of predetermined standard dimensions.
- the scraps which correspond to the ends of the trunk after sawing, are evacuated at the end of the chain in a waste bin 29 (see Figure 1).
- the elevator 7 comprises a jack 30 whose cylinder 31 is arranged in an upright position so that the rod 32 moves vertically between a high position and a low position.
- the upper end of the rod 32 supports a horizontal crosspiece
- This cross member is provided with lateral branches 35 oriented towards the hinged chain 6. These lateral branches 35 support a cradle 36, which is, by an axis 37, connected to the free end of the branches 35 so as to be able to pivot relative to these last.
- the cradle 36 In the high position of the rod 32, the cradle 36 is, as is clear from FIG. 2, arranged so as to be able to receive a billet ejected from the hinged chain 6 by tilting the tilting frame 22, by a simple bearing from the billet to the left under the effect of gravity.
- the billet received in the cradle 36 can then be marked, in a known manner, on one of its front ends.
- a known marking device 38 is shown schematically in FIG. 1.
- the billet 14 is lowered by the elevator 7.
- the cradle 36 in which it is housed abuts the passage ramp 9.
- the latter is formed of plates 39 arranged at a distance from each other. Their upper edge 40 is slightly sloping to the right in Figure 2. Their left end, in this figure, is introduced between the branches 35 of the cross member 33 of the elevator 7, during its downward movement (see Figure 3 ). This causes the cradle 36 to be raised by pivoting upwards and to the right about the axis 37.
- the high position of the cradle 36 is shown diagrammatically in FIG. 2.
- the billet then rolls on the passage ramp 9 towards an elevator receiving member 8.
- This receiving member comprises a horizontal cross member 41 provided with lateral branches 42 oriented towards the ramp 9 and passing slightly between the plates 39 thereof.
- the free ends of these branches 42 are slightly raised relative to their central part so as to be able, during the ascent movement, to hold the billet 14 which has come to lodge there.
- the elevator 8 may include a drive member of a type analogous to the cylinder 30 of the elevator 7 and therefore it is not shown.
- the cross member 41 is guided by rails 43 (see Figures 1 and 3).
- the billets In the high position of the elevator 8, the billets have reached a level higher than the top of the pile to be formed on a transport vehicle.
- the elevator 8 is shown in this position, in a partial and schematic manner in FIG. 4.
- It is a billet rotation device designated by the reference 44.
- This device comprises a support frame 45 supported horizontally on a vertical axis 46, so as to be able to pivot around the latter.
- This chassis 45 supports parallel pivot axes 48 on which rollers in the form of diabolos 47 pivot freely, being arranged one next to the other. They are aligned so as to form, by their narrowed central part, a linear traffic lane 99.
- the chassis 45 is rotated by a drive member, not shown, for example a jack, between a position, such as that shown in solid lines in the figure.
- a drive member not shown, for example a jack
- the frame 45 pivots below it, and the elevator 8 begins its downward movement.
- the branches 42 pass between the rollers 47 and then through passage slots 49 provided for this purpose in the chassis 45, while the billet 14 is retained by the rollers 47.
- the chassis 45 drives the billet 14 and changes the orientation of its axis by 90 ° in a horizontal plane.
- a push cylinder 50 is fixed along the chassis dynamometer
- Its rod 51 extends parallel to the billet 14 when it has been turned 90 ° by the rotation device 44.
- the free end of the rod 51 is provided with a lateral tab 52 which, in the position d 'extension of the rod 51, is located behind the rear front end of the billet 14 turned 90 °.
- the tab 52 drives the billet 14 on the rollers 47 which then rotate on their axis.
- the billet 14 is thus driven on the rollers in the form of diabolos 53 of the bench 10.
- the rollers 53 are driven in rotation by a motor not shown, by means of a common transmission belt 55.
- the billets 14 pushed by the pusher cylinder 50 on the rollers 53 are immediately driven by the latter.
- the installation comprises two accumulation ramps 56 and
- the ramps 56 and 57 each further comprise a comb-shaped ejector having ejection teeth 58. These ejection teeth 58 are supported at one end on a common connecting shaft 59 which crosses the two ramps and which is supported by the inclined bars 60. At the other end, the ejection teeth 58 of each ejector are crossed by a connecting rod 61. The connecting shaft 59 and the connecting rod 61 pass through the ejection teeth 58 while by allowing them to pivot relative to them.
- a jack 62 (see Figure 5) connected to the frame 63 acts from below on the connecting rod 61 to which the rod 64 of the jack 62 is connected.
- each of the accumulation ramps 56 and 57 in turn supports an axis of rotation 65 which passes through them so as to be able to rotate relative to them.
- This axis supports stop plates 66 arranged along each of the bars 60. The free end of these plates is connected to a jack 67 by its rod 68 (see FIG. 5).
- the stop plates 66 In the retracted position of the rod 68, the stop plates 66 have their upper edge in the same plane as the upper edge of the bars 60. In the extended position of the rod 68, the stop plates 66 are, at one of their ends, raised higher than the above-mentioned plane, and they thus prevent the billets accumulated on the ramps
- the billets can be, via a central control unit 69 shown diagrammatically in FIG. 1, ejected on the ramp 57 or on the ramp 56. It is provided for this, in the illustrated embodiment, an extension of the connecting rod 61 of the ramp
- the device comprises a loading element in the form of a basket 70, in the example illustrated (see in particular FIG. 5).
- Each nacelle 70 is provided with two lateral arms 73, which extend parallel to the ramp on either side of the latter.
- the opposite end of the nacelle of each of these arms 73 is hingedly connected to a drive rod 74, which in turn is fixedly connected to a shaft 75 of a rotary actuator 76.
- each of the arms is suspended, in an articulated manner, from a lateral connecting rod 71 capable of oscillating around an axis of oscillation 72 mounted in position horizontal, parallel to the billets arranged on the accumulation ramp.
- the nacelle 70 In the loading position, the nacelle 70 is, as shown in solid lines in FIG. 5, arranged against the front edge of the corresponding accumulation ramp. It is held in this position by the drive rods 74 which are brought by the shaft 75 of the rotary actuator 76 to their position furthest from the front edge of the accumulation ramp.
- the nacelle which then supports a billet, can oscillate to an extreme position, which will be called hereinafter the deposit location (see broken lines in Figure 5).
- the billet fell by gravity into the basket
- the stop plate 66 is returned to its high position to retain the following billets on the accumulation ramp.
- the deposit location represents the place that any billet must reach in an installation according to the invention for stacking from above on a transport vehicle. This location is therefore located at a level higher than the stack to be formed on the latter, in the stacking station 4.
- the deposit location is stationary, the billets are lowered into a horizontal position, therefore by translation, in a vertical direction, and the transport vehicle 12 located below this location performs on the tracks 13 a relative movement step by step with respect to the deposit location.
- This step-by-step movement is carried out using a jack 102 which advantageously is controlled by the control unit 69 (see FIG. 9).
- the vehicle is previously advanced as far as possible below the stacking gantry by being ejected from a ferry 17 by any means not shown.
- the transport vehicle 12 provided with latching means 103 at its front and rear ends is hooked by a latching element with hydraulic control 104 which is provided with the rod 105 of the slave cylinder. It is thus brought by the latter as far as possible below the stacking gantry 78. Then, after each billet deposit, it is moved back step by step by a distance corresponding to the diameter of the billets to be stacked, and this until the first layer of billets is formed on the vehicle. This is then advanced by a half-step, or, as the case may be, moved back by an additional half-step, then advanced step by step by the aforementioned distance until the next layer of billets is formed, and so after.
- the stack formed, the slave cylinder 102 pushes the vehicle 12 towards the ferry 17 while detaching from the latter.
- the stacking station 4 comprises, as illustrated in particular in FIG. 6, a clamp with two jaws 79 and 80, and a gantry 78 to which these jaws are suspended.
- a horizontal shaft 81 is mounted at its two ends on the vertical uprights 82 of the gantry by means of a support carriage 83, formed of a horizontal crosspiece 84 and two vertical wings
- this support carriage 83 is connected at its upper and lower ends to a chain
- a gear reduction system formed of pulleys 88 to 91 and a vertical cylinder 92, drives the support carriage up or down the gantry.
- the jaws 79 and 80 are mounted on the horizontal shaft 81 so as to be able to slide on it. In the exemplary embodiment illustrated, they are both driven in sliding by a clamping cylinder 93 connected by its cylinder to one of the jaws 80 and by its rod to the other jaw 79.
- Centering means for the jaws can advantageously be provided.
- they comprise two sprockets 94 fixed on the cross member 84 of the support carriage 83, so as to be able to rotate freely around vertical axes 95.
- a chain 96 passes around the sprockets 94. It is fixed to each of the jaws, in particular in 97 on the jaw 79. This arrangement forces the two jaws to move symmetrically on the shaft 81, and thus allows immediate centering of the billet clamped between the jaws.
- the descent of the support carriage 83 can take place, after the clamping of the clamp on a billet brought to the deposit location by the basket 70 and after the return of the basket 70 to its loading position, under the control of the jack. rotary 76.
- the device used in the illustrated embodiment includes, in addition to the elements described, a series of detectors, signal transmitters, limit switches, etc., which act, in particular by informing the unit 69, and that the latter controls the various mobile and motor elements of the installation as a function of this information and of a work program previously developed, with a view to obtaining a sequence and a completely automatic synchronization of the movements.
- the precision of depositing the billets can be _ + 3 mm.
- a step-by-step movement of the vehicle instead of a step-by-step movement of the vehicle, provision could be made for a step-by-step movement of the stacking gantry or both.
- the lowering of the billets must not necessarily be vertical and we can even design a variable route according to the commands given. The important thing is that the lowered billet reaches its exact stacking position on the stack to be formed and that it is deposited there.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE08901359 | 1989-12-19 | ||
BE8901359 | 1989-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991008972A1 true WO1991008972A1 (fr) | 1991-06-27 |
Family
ID=3884429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BE1990/000071 WO1991008972A1 (fr) | 1989-12-19 | 1990-12-17 | Procede et dispositif d'empilage de demi-produits cylindriques en metal |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0506719A1 (fr) |
AU (1) | AU6950691A (fr) |
WO (1) | WO1991008972A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104121841A (zh) * | 2014-07-25 | 2014-10-29 | 环驰轴承集团有限公司 | 一种全自动轴承外观检验机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941639A (en) * | 1972-09-01 | 1976-03-02 | Maroschak Ernest J | Tube doffing and bundling method |
DE3300939C1 (de) * | 1983-01-13 | 1984-08-23 | Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal | Betonstahlverarbeitungsanlage |
DE8811415U1 (de) * | 1988-09-09 | 1988-11-10 | Friedrich von Hein GmbH, 6830 Schwetzingen | Vorrichtung zur Palettierung |
-
1990
- 1990-12-17 WO PCT/BE1990/000071 patent/WO1991008972A1/fr not_active Application Discontinuation
- 1990-12-17 AU AU69506/91A patent/AU6950691A/en not_active Abandoned
- 1990-12-17 EP EP19910900691 patent/EP0506719A1/fr not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941639A (en) * | 1972-09-01 | 1976-03-02 | Maroschak Ernest J | Tube doffing and bundling method |
DE3300939C1 (de) * | 1983-01-13 | 1984-08-23 | Peddinghaus, Carl Ullrich, Dr., 5600 Wuppertal | Betonstahlverarbeitungsanlage |
DE8811415U1 (de) * | 1988-09-09 | 1988-11-10 | Friedrich von Hein GmbH, 6830 Schwetzingen | Vorrichtung zur Palettierung |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104121841A (zh) * | 2014-07-25 | 2014-10-29 | 环驰轴承集团有限公司 | 一种全自动轴承外观检验机 |
CN104121841B (zh) * | 2014-07-25 | 2017-01-25 | 环驰轴承集团有限公司 | 一种全自动轴承外观检验机 |
Also Published As
Publication number | Publication date |
---|---|
AU6950691A (en) | 1991-07-18 |
EP0506719A1 (fr) | 1992-10-07 |
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