US3675568A - Press assembly for compacting and binding wire coils - Google Patents

Press assembly for compacting and binding wire coils Download PDF

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Publication number
US3675568A
US3675568A US58936A US5893670A US3675568A US 3675568 A US3675568 A US 3675568A US 58936 A US58936 A US 58936A US 5893670 A US5893670 A US 5893670A US 3675568 A US3675568 A US 3675568A
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United States
Prior art keywords
pressure
jack
oil
piston
compacting
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Expired - Lifetime
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US58936A
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English (en)
Inventor
Ghislain Antoine Jean Martelee
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Cockerill SA
Cockerill Ougree Providence et Esperance Longdoz
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Cockerill SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/06—Bundling coils of wire or like annular objects

Definitions

  • ABSTRACT [22] Filed: July 28, 1970 A pres for compacting and binding wire coils on a spool which incorporates a medium pressure and a high pressure 1 pp N94 9- hydraulic fluid pump in conjunction with a low pressure and a medium pressure oil-pneumatic accumulator for operating the hydraulic jacks for compressing and binding the wire coils and Foreign Applkauon but, Dam removing the bound coils from the compressing mechanism.
  • the invention utilizes a plurality of pressure controls for acmating electric control valves to selectively connect either of [52] US. Cl. ..l00/7, 100/3, 100/ I2. the hydraulic pumps to the hydraulic cylinders whenhigher IOU/269 R pressure and fluid flow are required, or the oil-pneumatic ac- [51] Int. Cl [3/02 cumulators to the hydraulic cylinders when lower pressure [58] Field of Search IOU/3, 7, I2, 269 R and little fluid flow is required in order to obtain the most effcient operation of the press.
  • the fabricated metal wire comes out of the rolling mills and/or wire drawing plants, it is preferably rolled into coils upon fairly large spools. Although these coils of wire are contiguous, the spirals are not very tight, thus causing the coils of wire on the spools to have a rather large volume or size, as compared to their weight. This is somewhat of an inconvenience during transportation and storage, in view of the size.
  • one method used is to place several reels or spools side by side, compressing the spools of wire with a large force, and maintaining them in a compressed condition by means of links which generally consist of straps.
  • This method of compacting the reels or spools has the advantage of reducing the size of the coils by about 40 percent and is presently accomplished by utilizing compacting and binding presses. These presses incorporate for the placement of the reels a generally V-shaped support mounted on a floorplate which can be retracted between a fixed shielded and a movable shield which, for this purpose, is connected to a piston of a hydraulic compression jack supplied directly with hydraulic pressure by pumps.
  • the basic problem to be solved by the present invention is to provide a compacting and tying press which does not require drive motors for the pumps as powerful as those used in the known presses.
  • a press utilizing the structure of the present invention is characterized by the fact that the side of the face of the piston opposite the rod connected to said piston of the hydraulic compression jack is placed in communication with an oilpneumatic battery having an average pressure sufficient for moving the mobile floor-plate toward the fixed floor-plate, and with an average pressure pump which is actuated as to release the oil from a tank when the pressure in a medium pressure battery drops below a certain value, and with a high pressure pump which releases the oil from the above-mentioned tank toward the compression jack until reaching the desired compacting pressure, after which the pressure in said jack attains a specific value which is smaller than the compacting pressure, and then maintains this pressure at essentially zero flow rate during the tying or banding operation.
  • This high pressure pump is also in communication with the hydraulic compression jack on the side of the face of the piston oriented toward the rod, in order to release the oil after the tying operation and remove the mobile floor-plate from the fixed floorplate and to force the oil contained in the jack on the side of the face of the piston opposite the rod into a low pressure battery or accumulator.
  • This low pressure battery is in communication with the guide strap introduction jack, which includes a jack for the displacement of the retractable floor-plate, in conjunction with a jack for the opening of the V-support and mounted on the retractable floor-plate, and a jack for pivoting a floor-plate intended for the reception of the tied reels around a fixed pivot.
  • the connection of the pumps, batteries, and jacks with each other is controlled by pressostats," or pressure sensors, and switches acting on the electric valves in response to the pressure sensors.
  • Each electrical motor can thus furnish a relatively constant power during the entire duration of the compacting and tying cycle, contrary to the operation of present presses, in which the motors must furnish a much greater power during a much shorter operating period.
  • the motors must furnish 10 times more power during one-tenth of the operating time as compared to the application involving the press according to the present invention.
  • FIG. 1 shows a side elevational view of the present invention
  • FIG. 2 shows a cross-sectional view of the present invention along line 22 of FIG. 1;
  • FIG. 3 shows a schematic view of a control device, with only the elements necessary for understanding the other elements having been omitted for clarity.
  • a compacting and tying press has mounted on a framework 48 a fixed shielded 49 and a mobile shield 50 for compression, between which is positioned a retractable floor-plate 1, provided with a supporting V-shaped structure 2 for receiving the reels 3 to be compacted.
  • a pivoting floor-plate 4 permits the release of the finished packages or spools.
  • the mobile compression shield 50 is connected to the piston 50 of a hydraulic compression jack 5 by a rod 50.
  • the chamber 5a which is situated on the side of the face of the piston 50 opposite rod 5c of said piston, is connected by means of a conduit 6a, in which is connected an electric valve 6b, to a medium pressure oilpneumatic accumulator or battery 6 which is, itself, connected by a conduit 7a, which has an. electric valve 7b and a non-feedback valve 70 connected therein to a medium pressure pump 7 driven by an electric motor 8.
  • a second conduit 9a provided with an electric valve 9b and a non-feedback valve 9c.
  • This conduit is connected to a high-pressure pump 9 driven by the same motor 8 that drives medium pressure pump 7.
  • the press further includes a device 51 for the introduction of strap guides between the reels 3 to be tied together.
  • This device is connected by a rod to the piston 12d of a jack 12, which is carried by the mobile shield 50.
  • Chamber 12b of this jack which is situated on the side of the face of the piston 12d opposite rod 12a, is in communication with an oil-pneumatic, low-pressure accumulator or battery 11, via conduits lie, 1 la, and an electric valve 1 lb.
  • the pressure gauge or sensor 15 initiates the movement of valve 711 to the right so that the low pressure pump 7 then pumps the oil contained in reservoir tank 14 directly into chamber 5b and into the accumulator 6, which is thus recharged.
  • the pressure in chamber 5b rises.
  • a pressure gauge and control 16 is actuated so as to open the electrical supply circuit to the electric valve 6b, which is thus moved to the left, to a neutral position, shown in the figure, and also to close the electrical supply circuit to an electric valve 9b which is thus moved to the right.
  • the high pressure pump 9, which is driven by motor 8, has a variable flow rate which, after thebeginning of the operation, has returned to zero flow rate, then begins to pump the oil at a high pressure from tank 14 into chamber 5b of jack 5, through conduit 90 and electric valve 9b, so as to push the mobile shield 50 toward the fixed shield 49.
  • a pressure gauge control 18 is actuated the moment the pressure in chamber 5b of jack 5 reaches a value for which the reels, tightened by the mobile shield, can no longer slide between the mobile shield and the fixed shield.
  • This actuation of pressure gauge control 18 causes the closing of the electrical circuit to an electric valve 19 which is thus moved to the left, so that the oil coming from the battery 11 passes through a conduit 20, electric valve 19, a conduit 21, and reaches the chamber of a jack 22 on the side of the rod 220, articulated on the retractable floor-plate 1.
  • Rod 22a of jack 22 is retracted because oil is driven out of the chamber on the piston side opposite the rod 22a and passes through a conduit 23, valve 19, conduits 24 and 25, in order to arrive in reservoir tank 14.
  • the retractable floor-plate l is drawn toward the left and is lowered, moving from the outside spiral of the precompressed reels 3 which can thus expand freely in the course of the entire compacting phase.
  • valve 11b When valve 11b is moved to the right, the strap guide introduction device 51, which has advanced at the same time as the mobile shield 50, while preceding the mobile shield 50, is supported on the fixed shield 49 and is thus pushed back, thereby causing rod 12a of jack 12 to return by forcing oil into chamber 12c from tank 14 through conduit 17 and forcing oil out of chamber 121:, which passes through conduit 11c, valve llb, conduit 11a, in order to move back into the battery 11, or into tank 14, after opening, by means of the switch 11d, the electrical supply circuit for said valve llb, which is thus returned to the position shown in the FIG. 3.
  • a pressure gauge control 26 is actuated, which results in the closing of the electrical circuit of electric valve 7b which is moved to the right.
  • the medium pressure pump 7 then supplies, through valve 7b and conduit 7a, additional oil under pressure to the battery 6, which is thus resupplied.
  • the high pressure pump 9 requires only a small amount of power because it is being used merely to maintain the compacting pressure. Therefore, the largest portion of the power of motor 6 can be used to drive the medium pressure pump 7.
  • chamber 5b of jack 5 is placed in communication with the low pressure battery 11, via conduit 6a, electric valve 6b, and conduit 28 and 11a.
  • Chamber 5d of this same jack 5 is placed in communication with the high pressure pump 9, via conduit 13, electric valve 9b, and conduit 9a. The pressure drops in chamber 5b of jack 5 so that the pressure of the mobile shield against the tied reels 3 diminishes.
  • piston 12a of jack I2 is moved to the left, due to the action of the oil coming from the low pressure battery ll into chamber 12c of jack 12 via conduit 11a, valve 11b, displaced toward the left, and conduit 17.
  • the oil contained in chamber 12b of this jack 12 is forced back to tank 14 via conduit 11c and valve 11b.
  • rod of the atter activates a switch 32 which then opens the electrical supply circuit of electric valve 1 lb, which causes the latter to be returned to the neutral position, shown in the FIG. 3, for which the two chambers 12b and 12c are in communication with tank 14.
  • the retractable floor-plate l activates a switch 33. From that moment onward and for so long as the switches 27 and 32 have been actuated by the return of pistons 5a and 12b at the end of their strokes, respectively, in chambers 5b and 12b of jacks 5 and 12, the operator causes the closing of the electrical supply circuit of an electric valve 34 which is thus moved to the left. In this manner, the oil is supplied from the low pres sure battery 11 toward a jack 36 which activates the pivoting floor-plate 4, via the conduits 11a and 20, valve 34, and conduit 35. The pivoting floor-plate is thus raised and, simultaneously, the oil contained in jack 36, on the side of rod 36a, is forced back toward tank 14, via conduit 38, valve 34, and conduits 39 and 25.
  • the floor-plate 4 activates a switch 37 which controls the excitation of an electric valve 40.
  • the valve 40 is moved to the left and the low pressure battery 11 supplies the oil into a jack 42, on the side of its rod 420, through conduits 110 and 20, valve 40, and conduit 41. Oil is forced out of jack 42, on the side of the piston opposite the rod 42a, through conduit 43, valve 40, conduits 44, 39, and 25, toward tank 14.
  • rod 42a of jack 42 retracts, causing the part 2b of support 2 to pivot downward.
  • the latter support 2 opens so that portion 2b is placed in line with the pivoting floor-plate 4.
  • the package of compressed and tied reels 3 is released and rolls on the inclined floor-plate thus formed, from which it reaches the ground where it is picked
  • the machine operator then causes the floor-plate 4 to return its horizontal position, the V-shaped support 2 to be is reformed, and is to be ready to receive a new series of reels.
  • An electric valve 52 is inserted in conduit 13 between valve 9b and chamber 5d of jack 5.
  • This electric valve is controlled electrically from a switch 47 which can be moved parallel to the movement of piston 5a and activated by rod 50 or the mobile shield 50 when the latter has compressed the reels 3 until a package having a certain length has been formed.
  • the activation of switch 47 causes the displacement of said electric valve 52 so that it blocks the conduit l3,
  • some oil remains contained in chamber 5d of jack 5 and prevents a movement of piston 50 to the right, in spite of a rise in pressure in chamber 5b due to the action of pump 9.
  • a press assembly for compacting reels of wire into tight coils and binding the coils with straps comprising:
  • a hydraulic compression jack having a piston connected to the mobile shield
  • control means including pressure gauge controls, electric valves and electric switches for actuating the electric valves;
  • the hydraulic compression jack having one side of the piston opposite the actuating rod in communication with the medium pressure oil-pneumatic accumulator means and with the medium pressure pump, the control means actuating the medium pressure pump to supply oil to the compression jack when the pressure in the medium pressure chamber falls below a predetermined value, the side of the piston of the hydraulic compression jack opposite the actuating rod further communicating with the high pressure pump, the high pressure pump su plying a compacting pressure and maintaining a prede ermined pressure below the compacting pressure at a zero flow rate during binding of the wire coils, the high pressure pump further being in communication with the jack piston side attached to the rod for releasing the oil pressure alter the binding operation by forcing the oil contained on the side of the piston opposite the actuating rod into the low pressure accumulator in order to remove the mobile shield from the fixed shield;
  • a plurality of jack means for displacement of the removable floor plate, for opening the V-shaped support, for moving the retractable floor plate, and for pivoting the receiving floor plate.
  • control means includes an electric valve connecting the compression jack on the side of the piston of the actuator rod to the hydraulic fluid reservoir and a switch actuated by movement of the mobile shield towards the fixed shield controlling the electric valve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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US58936A 1969-07-28 1970-07-28 Press assembly for compacting and binding wire coils Expired - Lifetime US3675568A (en)

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BE736690 1969-07-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381704A (en) * 1981-04-15 1983-05-03 Inland Steel Company Method and apparatus for removing irregular lap formations in coils of metal strip
US6701831B2 (en) 2002-03-29 2004-03-09 L & P Property Management Company Apparatus and method for automated binding and spooling of wire cores
US6935665B2 (en) 2002-03-29 2005-08-30 L & P Property Management Co. Apparatus and method for spooling of wire cores
CN108910121A (zh) * 2018-05-28 2018-11-30 中冶华天南京工程技术有限公司 一种节能型型钢自动打包装置和工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926598A (en) * 1959-01-12 1960-03-01 United States Steel Corp Apparatus for packaging annular articles
US3129658A (en) * 1963-01-23 1964-04-21 Manco Mfg Company Compacting apparatus
US3266412A (en) * 1965-08-05 1966-08-16 Schloemann Ag Apparatus for the formation of bundles of wire
US3548739A (en) * 1968-04-01 1970-12-22 Botalam Machine for compacting and binding coils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926598A (en) * 1959-01-12 1960-03-01 United States Steel Corp Apparatus for packaging annular articles
US3129658A (en) * 1963-01-23 1964-04-21 Manco Mfg Company Compacting apparatus
US3266412A (en) * 1965-08-05 1966-08-16 Schloemann Ag Apparatus for the formation of bundles of wire
US3548739A (en) * 1968-04-01 1970-12-22 Botalam Machine for compacting and binding coils

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381704A (en) * 1981-04-15 1983-05-03 Inland Steel Company Method and apparatus for removing irregular lap formations in coils of metal strip
US6701831B2 (en) 2002-03-29 2004-03-09 L & P Property Management Company Apparatus and method for automated binding and spooling of wire cores
US6935665B2 (en) 2002-03-29 2005-08-30 L & P Property Management Co. Apparatus and method for spooling of wire cores
CN108910121A (zh) * 2018-05-28 2018-11-30 中冶华天南京工程技术有限公司 一种节能型型钢自动打包装置和工艺
CN108910121B (zh) * 2018-05-28 2020-06-30 中冶华天南京工程技术有限公司 一种节能型型钢自动打包装置和工艺

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BE736690A (th) 1969-12-31
GB1260600A (en) 1972-01-19

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