US3315593A - Tying machine - Google Patents

Tying machine Download PDF

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US3315593A
US3315593A US511466A US51146665A US3315593A US 3315593 A US3315593 A US 3315593A US 511466 A US511466 A US 511466A US 51146665 A US51146665 A US 51146665A US 3315593 A US3315593 A US 3315593A
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cord
arm
article
plate
bundle
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US511466A
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Wright A Scoville
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00Bundling articles
    • B65B13/18Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/24Securing ends of binding material
    • B65B13/34Securing ends of binding material by applying separate securing members, e.g. deformable clips

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  • This invention relates to apparatus for securing an article or articles by wrapping a cord, tape or the like thereabout and securing the same in encircling relation about such article or articles.
  • tying is used in the broad sense inasmuch as a cord or the like is not knotted or formed with a knot.
  • the ends of the encircling cord are secured by staples, and While the word cord will be used to identify the tying medium, it is to be understood that any similar tying medium such as tape, etc., may be used.
  • One of the objects of the invention is the provision of apparatus for securing a'cord tightly about a package, bundle of articles, or the like.
  • Another object of the invention is the provision of apparatus for securing a cord or the like tightly about a package or bundle of articles by stapling the ends of a leading section of a continuous cord about the package or articles after the apparatus has tightly drawn such section about the packageor articles and then severing such leading section from the remainder and cutting it from the latter, and then setting the machine for subsequent tying operations.
  • Another object of the invention is the provision of improved apparatus for securing succeeding sections of a pair of continuous cords about the opposite end portions of horizontally elongated bundles of similarly elongated elements, by encircling each of successively presented bundles with said sections, under tension, and securing the ends of each such sections to each other and to the ends of the bundles, and thereafter automatically severing the sections so secured from the remainders of the continuous cords, and then repeating the cycle including the presentation of the bundles.
  • FIG. 1 is a front elevational view of a tying machine.
  • FIG. 2 is a side elevational view of the machine of FIG. 1 as seen from the right hand side of FIG. 1, certain parts shown in FIG. 2 being omitted for clarity.
  • FIG. 3 is a top plan view of the machine of FIG. 2.
  • FIG. 4 is an enlarged fragmentary, cross sectional view at line 44 of FIG. 3 showing part of the stapler.
  • FIG. 5 is a fragmentary front elevational view of the stapler shown in FIG. 1 in stapling position, the outline of the bundle or article being shown in dot-dash line.
  • FIG. 6 is an enlarged, fragmentary, elevational view of part of the machine as shown from line 66 of FIG. 1.
  • FIG. 7 is an enlarged part section, part elevational View, generally at line 7-7 of FIG. 6.
  • FIG. 8 is an end elevational view of the part shown in FIG. 6 as seen from line 8-8 of FIG. 7.
  • FIG. 9 is an enlarged, fragmentary elevational View of the cord clamping and cutting portion of the machine as viewed from line 99 of FIG. 1.
  • FIG. 10 is a top plan view of the portion shown in FIG. 9.
  • FIG. 11 is a semischematic View showing the steps in a cycle of tying or stapling.
  • FIG. 12 is a simplified view showing an installation for tying or securing together the ends of bundles of elongated articles, such as flooring.
  • an article to be tied which may be a container, package or a bundle of elements, is indicated in dot-dash line and is generally designated 1.
  • This article is supported on the upper run of an endless conveyor, generally designated 2, or any other suitable support.
  • the conveyor, or support is in a position spaced from one side of the frame 3 of-the tying machine, and it is adapted to support the article 1 thereon in a position projecting from said support in a direction toward said frame a sufficient distance to enable a horizontally disposed arm 4 on the tying machine to complete 360 degree revolutions, and more, around the portion of the article that projects from said support.
  • Suitable bearings 5 on frame 3 (FIG. 2) rotatably support a horizontal shaft 6, in a position extending at a right angle to the length of conveyor 2 with one end projecting from a side of frame 5 adjacent to said conveyor.
  • Said projecting end of shaft 6 has a radially outwardly projecting arm 7 projecting therefrom; and the aforesaid arm 4, which may be called a tying arm, is rigid with and projects horizontally from the outer end of arm 7 in a direction away from frame 3.
  • the arm 4 will .revolve in an annular path 9 (FIGS. 1, 11) upon rotation of shaft 6, and the latter is connected, through suitable reducing gears, with a mot-or 10 (FIG. 2) through sprocket wheels 13, 14 that, in turn, are connected by a sprocket chain 15.
  • conveyor 2 The upper run of conveyor 2 is supported on a rigid support 16 (FIG. 1) at the point adjacent to frame 3 where the article 1 is supported for tying, and said conveyor supports article 1 in a position in which the arm 4 will revolve completely about the projecting end of said article (FIGS. 1, 11).
  • FIG. 12 shows the article 1 as comprising a bundle of flooring of uniform length with the flooring arranged to provide a square cross sectional container (FIG. 1).
  • the conveyor in FIG. 12 comprises a pair of endless chains 17 in horizontally spaced side by side relation extending at their opposite ends over sprocket wheels 18 that are on parallel shafts 19.
  • a sprocket wheel 20 secured on one of the shafts 19 is connected by a sprocket chain 23 with a sprocket wheel 24 that, in turn, is driven through reducing gears by a motor-brake 25.
  • Chains 17 are provided with lugs 26 (FIG. 1) that project upwardly from the upperruns of the conveyors for spacing the bundles along the chain, and the circuit for motor 25 includes a control box 27 (FIG. 3) in which the conveyors are timed for intermittent movement with the movementsof the tying machine.
  • the bundles l'positioned horizontally extending across the conveyor chains by lugs 26, have their ends projecting oppositely outwardly from the opposite sides of the pair of chains and a pair sponding to the machine of FIG. 1 except the left-hand tying machine is complementary to the right-hand machine in operation, are at opposite sides of the conveyor with their forward sides facing each other so that the arms 4, when actuated, will similarly revolve about the projecting ends of the bundles 1 upon each bundle being of the tying machines, each corre-.
  • the frame 3 includes a vertically extending post 28.
  • a bracket 29 extending angularly upwardly and forwardly relative to post 28, the forward side of the frame is the side at which bundle 1 is positioned.
  • the bracket arm 29 is relatively wide and has a pair of ears 33 (FIG. 1) at the upper end between which is horizontal pin or pivot 35 that. extends between said ears.
  • a pivot 36 Connected to the rear side of plate 34 by a pivot 36 (FIG. 6) is a piston rod 37 that projects from an air cylinder 38 (FIG. 2) which cylinder, in turn, is pivotally connected at its end opposite to said piston rod with the bracket 29.
  • one actuation of the air cylinder may swing the plate 34 and any elements supported thereon forwardly to dot-dash line position 39 (FIG. 2) and 'an opposite actuation will return the'plate to vertically suspended full line position.
  • a vertically elongated plate-like arm 40 is pivotally suspended at its upper end portion to plate 34 at the forcentral longitudinal axis 7 rear side of plate 40, and a nylon brake-plate 66 extends a I transversely of plate 40 across theunder surface of poractuation of the cylinder will result in the clamping jaw;
  • the end of arm 48 that is opposite to pivot 49 is formed with a downward projection 55 (FIG. 7) that is formed with a through aperture 56, the walls of which are preferably outwardly flared at its ends for passage of a tying cord 57 therethrough and any continuous source thereof,.
  • a roll 58 FIG. 11
  • a support 59 that, in turn, may be secured to frame 3 and which roll may include any suitable conventional brake means (not shown) to prevent over-running when cord is drawn therefrom.
  • said plate is formed with a generally inverted L-shaped portion (FIG. 7) that projects forwardly of the plate with the leg with aperture 56, and is of the same shape.
  • the portion 63 may continue transversely across the lower edge of plate 40 to project at 65 (FIG. 8 to the tions- 63 and. 65, said undersurface being at about thelevel of aperture '64.
  • a spring 67 (FIG. 8) above portion 65 and around 'an upstanding bolt 68, that is threaded into plate 66 and that freely extends through an opening V in portion 65, reacts between the head of the bolt at its 65, and portion 65 yieldably holding the brake plate'66 against the undersurface of upper end above portioni projection 63 when no'cord is in place.
  • Plate 34 is formed with a forwardly projecting stop 'in the form of alug 44 along the edge thereof that faces away from armr4.-
  • a spring 45 is connected at its opposite ends to arm and plate 34 for yieldably holding arm 40 against a lug 44 (FIG; 1) on plate 34, whileithe lower end of said arm is adapted to swing clockwise, as viewed in FIG 1, against the resistance of said spring.
  • the lower edge of arm 40 is' relatively wide in the plane in which the V pivot'43, :and spaced between theends 'of said edge and lower end is adapted to swing about integral'with arm 40, is a forwardly projecting generally I horizontally elongated stationary lug'46 (FIG. 7) that has an'upwardly facing convexly curved upper surface,
  • lug extends longitudinally of said lower edge.
  • a movable clamping jaw 47 that has a lower generally horizontally elongated surface that is concave'and complementarily surface of lug46, 7
  • i Jaw 4,7 ison a generally horizontally extending arm' ,48 atta :p'oint intermediate the ends of the la'tte'r,;a pivot '49 connects one end 'f the arm with plate 40 for upward 7 position in which the complementarily 'formed surfaces 7 a of-lug46 and jaw 47 are together, to a position in which jaw 47 is spaced above said lug 46.
  • r f t a
  • An air cylinder 50 (FIG.” 1) is generally'vertically dis- 7 posed above the end of arm' 48 that is opposite to pivot 49, and .the upper end of this cylinder is pivotally connected to arm 40 at 51.
  • the piston rod 53 projects from the lower end of cylinder 50 and is pivotally connected site to pivot 49 (FIG. 7
  • a link 76 is pivotally connected at one end by pivot 1 72 to the movable clamping, element 71 adjacent "to the outer end of the latter, while a similar butshorter line";
  • a stapler assembly Supported on frame 3 substantially above the circularpath 9'of the outer end of arm 4 is a stapler assembly generally designated 82 (FIG. 1).
  • The'stapler 83 .of'the stapler assembly is conventional, and 'it includes a magwhich cord may be drawn from 60 of said portion projecting downwardly, and with the arm 63 of said portion extending toward the clamping jaw 47.
  • the depending leg 60 is formed with.
  • a cord clamping and cutting mechanism generally designated 69 in the form of a cutting blade 70 and a clamping element 71 (FIGS; I 1 9, 10) that are pivotally supported on arm 4 at'one ofQ and release the hammer for driving the staples upon each downward movement of the head 85 into engagement with the material 1 to receive the staples, and to cock the stapler head upon each upward movement of the head.
  • the stapler 83 is secured to and below a horizontal plate 86 that, in turn, has a pair of spaced vertical bolts 87 (FIG. 4) secured thereto and projecting upwardly therefrom.
  • an upper plate 88 Spaced above plate 86 is an upper plate 88 that, in turn, is formed with downwardly projecting bosses 89 that have vertical open ended bores therethrough through which the upper ends of bolts 87 project. Nuts 90 on the upper ends of said bolts function as stops for upward movement of the plate 88. Helical springs 93, through which bolts 87 extend, react between plate 86 and bosses '89 to yieldably hold them spaced apart.
  • an overhead arm 94 that is rigidly secured at one end to the upper end of frame 3, and this arm projects outwardly of frame 3 so that the outer end portion of arm 94 is over path 9.
  • a vertical air cylinder 95 is secured at its lower end to said arm with its piston rod 96 (FIG. 4.) freely extending through an opening in arm 94 and the downwardly projecting end of said rod 96 is secured to plate 88.
  • a vertical guide rod 97 (FIG. 1) spaced from rod 96 is secured at its lower end rto plate 88 (FIG. 4) and also extends through an opening in arm 94 and is reciproca-ble through a vertically extending boss ⁇ 98 (FIG. 1) rigid with arm 94.
  • the stapler Upon downward movement of piston rod 96 under the influence of compressed air in cylinder 95, the stapler will be moved down to effect a stapling operation, and the provision of springs 93 compensates for variation in the vertical thickness of bundles and insures a firm contact of the stapler with the material 1. Also the springs have a cushioning effect, and enable the relative movement between the plates 86, 88 for actuation of the microswitch 99 (FIG. 1) on plate 88, which actuates the solenoid valve in the air line to cylinder 95 for returning the air cylinder and stapler to its original elevated position.
  • the air cylinder 80 is single acting and is controlled by a cam-actuated limit switch in box 27, but the air line leading to the air cylinder 80 comprises a duct 100 (FIG. 2) extending from the source of compressed air to cylinder '80 and the piston rod in this instance is spring returned after actuation for cutting and clamping the cord. Said source is indicated at 101.
  • the motor for actuating arm 4 and the conveyor 2 are of the conventional ty each having an automatically actuated brake to prevent over-running when the circuit thereto is broken, and in FIG. 12 a stationary microswitch 102 in a circuit to the control box 27 may be actuated by engagement with load 1 to stop the conveyor at the tying station and upon the tying' cycle being concluded, the current to the motor 25 will be re-established for moving the next bundle to the tying station.
  • the cord clamping and cutting mechanism 69 on the outer end of arm 4 is shown at A in a position approximately at 11 oclock, viewing the apparatus toward the forward side, as seen in FIG, 1, and the cylinder 80 may be actuated by a manually actuatable switch in the electrical current to grip the cord when the latter is in position A. This is merely to start the operation, since subsequent operations and cycles are automatic. The circuit for the cycling operation is then closed, and the undle 1 being in a position substantially coaxial with the axis of shaft 6, the arm 4 will be revolved counterclockwise through positions B, C, D, B.
  • the air cylinder 50 on plate 40 is actuated to cause clamp 47 to firmly grip the cord, and thereafter during movement of the clamping mechanism 69 through position A to position -B will place a substantial tension on the cord to tighten it about the bundle 1 since the plate 40 will be swung clockwise to move the clamping elements 46, 47 (now in cord clamping position X to position Y [FIG. 11]), and the plate 40 will swing against the resistance of spring 45.
  • the air cylinder 95 of the stapler is actuated to staple the lapping side-by-side end portions of the section of the cord that is tightly wrapped about the top of the bundle and to each other, after which the cord at the mechanism 69 is released through release of air pressure in cylinder 80.
  • the clamping and cutting mechanism in open position, then moves again to and through position C but without the cord.
  • the air cylinder 38 is not actuated to swing plate 40, hence the cord will be engaged by the clamping mechanism and/the latter will be actuated through actuation of cylinder to both sever the portion of the cord between the cutting mechanism and the staple, and to grip the end of the cord that extends to the clamp, of the tensioning device that includes plate 40, the clamping action taking place before the cutting of the cord.
  • the clamp 47 on plate 40 may be released after the cord is cut at position B to release the plate 40 and then the conveyor may be actuated to bring the next bundle to the desired position for tying while the clamping.
  • mechanism 69 moves to position A and through the cycle as described.
  • a tying machine comprising:
  • a gripping member adapted to releasably grip one end portion of a cord to be wrapped around an artiole to be tied;
  • (j) means connected with said element for so moving machine so that it may be moved into and out of a it laterally to so move said cord. plane which contains said circular path;
  • V portioniof said cord whereby movement of said (g) and means operably connected to said tensioning cord'gripping member in said path after said'severance of said portionwill wrap said cord about anotherbundle on said support.

Description

April 25, 1967 w. A. SCOVILLE 3,315,593
TYING MACHINE Filed Dec. 3, 1965 4 SheetS-Sheet 1 INVENTOR WRIGHT A. SCOVILLE ATTORNEYS April 25, 1967 w. A. SCOVILLE TYING MACHINE 4 Sheets-Sheet 2 Filed Dec. 5, 1965 INVENTOR WRIGHT A. SCOVILLE BY I W MZt-L lJ rrwnq,
ATTORNEYS April 25, 1967 w. A. SCOVILLE 3,315,593
I TYING MACHINE Filed Dec. 5, 1965 4 Sheets-Sheet s FIG 3 INVENTOR.
WRIGHTA. SCOVI LLE ATTORNEYS TYING MACHINE Filed Dec. 3, 1965 4 Sheets-Sheet 4 INVENTOR. WRIGHT A..SCOV1L'LE W m fie; ,JMW
ATIQRNEAYS United States Patent 3,315,593 TYING MACHINE Wright A. Scoville, P.0. Box 2429, White City, Oreg. 97501 Filed Dec. 3, 1965, Ser. No. 511,466 7 Claims. (Cl. 100-27) This invention relates to apparatus for securing an article or articles by wrapping a cord, tape or the like thereabout and securing the same in encircling relation about such article or articles.
The word tying is used in the broad sense inasmuch as a cord or the like is not knotted or formed with a knot. In the embodiment illustrated herein, the ends of the encircling cord are secured by staples, and While the word cord will be used to identify the tying medium, it is to be understood that any similar tying medium such as tape, etc., may be used.
One of the objects of the invention is the provision of apparatus for securing a'cord tightly about a package, bundle of articles, or the like.
Another object of the invention is the provision of apparatus for securing a cord or the like tightly about a package or bundle of articles by stapling the ends of a leading section of a continuous cord about the package or articles after the apparatus has tightly drawn such section about the packageor articles and then severing such leading section from the remainder and cutting it from the latter, and then setting the machine for subsequent tying operations. I
Another object of the invention is the provision of improved apparatus for securing succeeding sections of a pair of continuous cords about the opposite end portions of horizontally elongated bundles of similarly elongated elements, by encircling each of successively presented bundles with said sections, under tension, and securing the ends of each such sections to each other and to the ends of the bundles, and thereafter automatically severing the sections so secured from the remainders of the continuous cords, and then repeating the cycle including the presentation of the bundles.
Other objects and advantages will appear in the description and in the drawings.
In the drawings,
FIG. 1 is a front elevational view of a tying machine.
FIG. 2 is a side elevational view of the machine of FIG. 1 as seen from the right hand side of FIG. 1, certain parts shown in FIG. 2 being omitted for clarity.
FIG. 3 is a top plan view of the machine of FIG. 2.
FIG. 4 is an enlarged fragmentary, cross sectional view at line 44 of FIG. 3 showing part of the stapler.
FIG. 5 is a fragmentary front elevational view of the stapler shown in FIG. 1 in stapling position, the outline of the bundle or article being shown in dot-dash line.
FIG. 6 is an enlarged, fragmentary, elevational view of part of the machine as shown from line 66 of FIG. 1.
FIG. 7 is an enlarged part section, part elevational View, generally at line 7-7 of FIG. 6.
FIG. 8 is an end elevational view of the part shown in FIG. 6 as seen from line 8-8 of FIG. 7.
FIG. 9 is an enlarged, fragmentary elevational View of the cord clamping and cutting portion of the machine as viewed from line 99 of FIG. 1.
FIG. 10 is a top plan view of the portion shown in FIG. 9.
FIG. 11 is a semischematic View showing the steps in a cycle of tying or stapling.
FIG. 12 is a simplified view showing an installation for tying or securing together the ends of bundles of elongated articles, such as flooring.
Referring to FIG. 1, an article to be tied, which may be a container, package or a bundle of elements, is indicated in dot-dash line and is generally designated 1. This article is supported on the upper run of an endless conveyor, generally designated 2, or any other suitable support. The conveyor, or support, is in a position spaced from one side of the frame 3 of-the tying machine, and it is adapted to support the article 1 thereon in a position projecting from said support in a direction toward said frame a sufficient distance to enable a horizontally disposed arm 4 on the tying machine to complete 360 degree revolutions, and more, around the portion of the article that projects from said support.
Suitable bearings 5 on frame 3 (FIG. 2) rotatably support a horizontal shaft 6, in a position extending at a right angle to the length of conveyor 2 with one end projecting from a side of frame 5 adjacent to said conveyor. Said projecting end of shaft 6 has a radially outwardly projecting arm 7 projecting therefrom; and the aforesaid arm 4, which may be called a tying arm, is rigid with and projects horizontally from the outer end of arm 7 in a direction away from frame 3.
From the foregoing, it is seen that the arm 4 will .revolve in an annular path 9 (FIGS. 1, 11) upon rotation of shaft 6, and the latter is connected, through suitable reducing gears, with a mot-or 10 (FIG. 2) through sprocket wheels 13, 14 that, in turn, are connected by a sprocket chain 15.
The upper run of conveyor 2 is supported on a rigid support 16 (FIG. 1) at the point adjacent to frame 3 where the article 1 is supported for tying, and said conveyor supports article 1 in a position in which the arm 4 will revolve completely about the projecting end of said article (FIGS. 1, 11).
FIG. 12 shows the article 1 as comprising a bundle of flooring of uniform length with the flooring arranged to provide a square cross sectional container (FIG. 1). The conveyor in FIG. 12 comprises a pair of endless chains 17 in horizontally spaced side by side relation extending at their opposite ends over sprocket wheels 18 that are on parallel shafts 19. A sprocket wheel 20 secured on one of the shafts 19 is connected by a sprocket chain 23 with a sprocket wheel 24 that, in turn, is driven through reducing gears by a motor-brake 25. Chains 17 are provided with lugs 26 (FIG. 1) that project upwardly from the upperruns of the conveyors for spacing the bundles along the chain, and the circuit for motor 25 includes a control box 27 (FIG. 3) in which the conveyors are timed for intermittent movement with the movementsof the tying machine.
The bundles l'positioned horizontally extending across the conveyor chains by lugs 26, have their ends projecting oppositely outwardly from the opposite sides of the pair of chains and a pair sponding to the machine of FIG. 1 except the left-hand tying machine is complementary to the right-hand machine in operation, are at opposite sides of the conveyor with their forward sides facing each other so that the arms 4, when actuated, will similarly revolve about the projecting ends of the bundles 1 upon each bundle being of the tying machines, each corre-.
' suspended a plate 34 from a As viewed in FIG. 2, the frame 3 includes a vertically extending post 28. Adjustably secured on said post for vertical movement to different levels is a bracket 29 extending angularly upwardly and forwardly relative to post 28, the forward side of the frame is the side at which bundle 1 is positioned. a
7 Set screws 30 secure a sleeve 31 on the lower end of bracket arm 29 at the desired level on post 28 for supporting the elements carried by the bracket at the desired level.
The bracket arm 29 is relatively wide and has a pair of ears 33 (FIG. 1) at the upper end between which is horizontal pin or pivot 35 that. extends between said ears. Connected to the rear side of plate 34 by a pivot 36 (FIG. 6) is a piston rod 37 that projects from an air cylinder 38 (FIG. 2) which cylinder, in turn, is pivotally connected at its end opposite to said piston rod with the bracket 29. By this arrangement, one actuation of the air cylinder may swing the plate 34 and any elements supported thereon forwardly to dot-dash line position 39 (FIG. 2) and 'an opposite actuation will return the'plate to vertically suspended full line position.
A vertically elongated plate-like arm 40 is pivotally suspended at its upper end portion to plate 34 at the forcentral longitudinal axis 7 rear side of plate 40, and a nylon brake-plate 66 extends a I transversely of plate 40 across theunder surface of poractuation of the cylinder will result in the clamping jaw;
47 being in clamping engagement with lug 46.
The end of arm 48 that is opposite to pivot 49 is formed with a downward projection 55 (FIG. 7) that is formed with a through aperture 56, the walls of which are preferably outwardly flared at its ends for passage of a tying cord 57 therethrough and any continuous source thereof,.such as a roll 58 (FIG. 11) carried by a support 59 that, in turn, may be secured to frame 3 and which roll may include any suitable conventional brake means (not shown) to prevent over-running when cord is drawn therefrom.
At the lower edge of the plate '40 opposite to projection 55, said plate is formed with a generally inverted L-shaped portion (FIG. 7) that projects forwardly of the plate with the leg with aperture 56, and is of the same shape.
The portion 63 may continue transversely across the lower edge of plate 40 to project at 65 (FIG. 8 to the tions- 63 and. 65, said undersurface being at about thelevel of aperture '64. A spring 67 (FIG. 8) above portion 65 and around 'an upstanding bolt 68, that is threaded into plate 66 and that freely extends through an opening V in portion 65, reacts between the head of the bolt at its 65, and portion 65 yieldably holding the brake plate'66 against the undersurface of upper end above portioni projection 63 when no'cord is in place.
ward side of the latter by a pivot 43 (FIG. 1) for swinging in approximately the same vertical plane as the plane a in which path 9 of arm 4 and conveyor 2 are disposed,
andawhich plane is normal to the direction in which plate 34 is adapted to swing about pin 35.
Plate 34 is formed with a forwardly projecting stop 'in the form of alug 44 along the edge thereof that faces away from armr4.- A spring 45 is connected at its opposite ends to arm and plate 34 for yieldably holding arm 40 against a lug 44 (FIG; 1) on plate 34, whileithe lower end of said arm is adapted to swing clockwise, as viewed in FIG 1, against the resistance of said spring.
The lower edge of arm 40 is' relatively wide in the plane in which the V pivot'43, :and spaced between theends 'of said edge and lower end is adapted to swing about integral'with arm 40, is a forwardly projecting generally I horizontally elongated stationary lug'46 (FIG. 7) that has an'upwardly facing convexly curved upper surface,
which lug extends longitudinally of said lower edge. 1 Above said lug is a movable clamping jaw 47 that has a lower generally horizontally elongated surface that is concave'and complementarily surface of lug46, 7
i Jaw 4,7 ison a generally horizontally extending arm' ,48 atta :p'oint intermediate the ends of the la'tte'r,;a pivot '49 connects one end 'f the arm with plate 40 for upward 7 position in which the complementarily 'formed surfaces 7 a of-lug46 and jaw 47 are together, to a position in which jaw 47 is spaced above said lug 46. r f t a An air cylinder 50 (FIG." 1) is generally'vertically dis- 7 posed above the end of arm' 48 that is opposite to pivot 49, and .the upper end of this cylinder is pivotally connected to arm 40 at 51. The piston rod 53 projects from the lower end of cylinder 50 and is pivotally connected site to pivot 49 (FIG. 7
1 Upon one actuation of cylinder SO, the clamping'jjaw will be elevated away from the lug 46, while an opposite curved with respect to the upper Cord 57 from spool or roll 58 extends through aperture 64 and between the brake plate 66 before passing over lug 46 and through aperture 56. When the cylinder is actuated to' release clamping jaw 47, the cord 57 from the spool 58 may be pulled through apertures64, 56 from right to left as seen in FIGS. 1, 7, butthe frictional resistance of block 66 Wlll remain'at all times, and thus resistance may be increasedordecreased by tightening or loosening bolt 68.
The outer end ofarm their ends by a single pivot 73.
a The outer end of arrn 4 beyond pivot 73 extendskup I wardly and outwardly to provide a stationary, clamping jaw 7 4 toward which the element 71 is adapted to: swing to engage a cord clamping relation between element 71 and jaw 74. Blade 70 is adjacent to the jaw 74 and the latter has a stationarycutting blade 75 (FIG. 10) screwedthereto i in shearing relation to blade1'70, scissors fashion,lwhen the latter'is swung about pivot 73 alongsideblade 75.;
A link 76 is pivotally connected at one end by pivot 1 72 to the movable clamping, element 71 adjacent "to the outer end of the latter, while a similar butshorter line";
77 is pivotally connected at one endto the m'ovable cutting blade 70' at a point closerto pivot 73 than pivot 72 The opposite ends of said links are pivotally connected 'by a commonpivot' 78 to, the ,outer end of the piston rod 79' I "swinging of the end nearestito the tyingarm 4 froma at 54 (FIG. 7);with the end of said arm 48 that is oppo azine 84 that automatically feeds the staplesto the stapler Y: I
head 85, which'head is vertically reciprocable to cock of a cylinder 80.
Upon one'actuation of cylinderstlfto move piston rod 79 outwardly thereof, the clamping"jaw 71willclampaj cord extending between the jaws before thecuttingtblade' j a cuts the cord and thereafter the cord will be;tightly clamped between the jaws 71, 74 until a reverse actuation of rod 79. The: clamping and" cutting are almost simultaneous.
Supported on frame 3 substantially above the circularpath 9'of the outer end of arm 4 is a stapler assembly generally designated 82 (FIG. 1). The'stapler 83 .of'the stapler assembly is conventional, and 'it includes a magwhich cord may be drawn from 60 of said portion projecting downwardly, and with the arm 63 of said portion extending toward the clamping jaw 47. The depending leg 60 is formed with. an aperture 64 that is approximately in alignment 4 carn'es a cord clamping and cutting mechanism generally designated 69 in the form of a cutting blade 70 and a clamping element 71 (FIGS; I 1 9, 10) that are pivotally supported on arm 4 at'one ofQ and release the hammer for driving the staples upon each downward movement of the head 85 into engagement with the material 1 to receive the staples, and to cock the stapler head upon each upward movement of the head.
The stapler 83 is secured to and below a horizontal plate 86 that, in turn, has a pair of spaced vertical bolts 87 (FIG. 4) secured thereto and projecting upwardly therefrom.
Spaced above plate 86 is an upper plate 88 that, in turn, is formed with downwardly projecting bosses 89 that have vertical open ended bores therethrough through which the upper ends of bolts 87 project. Nuts 90 on the upper ends of said bolts function as stops for upward movement of the plate 88. Helical springs 93, through which bolts 87 extend, react between plate 86 and bosses '89 to yieldably hold them spaced apart.
Above the plate 88 is an overhead arm 94 that is rigidly secured at one end to the upper end of frame 3, and this arm projects outwardly of frame 3 so that the outer end portion of arm 94 is over path 9. A vertical air cylinder 95 is secured at its lower end to said arm with its piston rod 96 (FIG. 4.) freely extending through an opening in arm 94 and the downwardly projecting end of said rod 96 is secured to plate 88.
A vertical guide rod 97 (FIG. 1) spaced from rod 96 is secured at its lower end rto plate 88 (FIG. 4) and also extends through an opening in arm 94 and is reciproca-ble through a vertically extending boss\98 (FIG. 1) rigid with arm 94.
Upon downward movement of piston rod 96 under the influence of compressed air in cylinder 95, the stapler will be moved down to effect a stapling operation, and the provision of springs 93 compensates for variation in the vertical thickness of bundles and insures a firm contact of the stapler with the material 1. Also the springs have a cushioning effect, and enable the relative movement between the plates 86, 88 for actuation of the microswitch 99 (FIG. 1) on plate 88, which actuates the solenoid valve in the air line to cylinder 95 for returning the air cylinder and stapler to its original elevated position.
From the foregoing description, it is seen that there are several air cylinders, namely; and in the order in which they are mentioned, the cylinder 38 that is connected with the plate 34 for swinging plate 34 and arm 40 between the full line and dot-dash line position 39 (FIG. 2); the :air cylinder 50 that actuates the clamp 47, that in turn, is on arm 40; the air cylinder 80 on arm 4 that actuates the cord clamping and cord cutting means on said arm, and the air cy der 95 for the stapler.
These are all double acting air cylinders, except the cylinder 80, and each has conventional air pressure lines connecting each with conventional solenoid valves that, in turn, are controlled in the desired sequence by conventional adjustable rotating cam limit switches in a control box 27. The air cylinder 80 is single acting and is controlled by a cam-actuated limit switch in box 27, but the air line leading to the air cylinder 80 comprises a duct 100 (FIG. 2) extending from the source of compressed air to cylinder '80 and the piston rod in this instance is spring returned after actuation for cutting and clamping the cord. Said source is indicated at 101.
The motor for actuating arm 4 and the conveyor 2 are of the conventional ty each having an automatically actuated brake to prevent over-running when the circuit thereto is broken, and in FIG. 12 a stationary microswitch 102 in a circuit to the control box 27 may be actuated by engagement with load 1 to stop the conveyor at the tying station and upon the tying' cycle being concluded, the current to the motor 25 will be re-established for moving the next bundle to the tying station.
A brief explanation of a cycle of operation is as follows, referring to FIG. 11.
The cord clamping and cutting mechanism 69 on the outer end of arm 4 is shown at A in a position approximately at 11 oclock, viewing the apparatus toward the forward side, as seen in FIG, 1, and the cylinder 80 may be actuated by a manually actuatable switch in the electrical current to grip the cord when the latter is in position A. This is merely to start the operation, since subsequent operations and cycles are automatic. The circuit for the cycling operation is then closed, and the undle 1 being in a position substantially coaxial with the axis of shaft 6, the arm 4 will be revolved counterclockwise through positions B, C, D, B. At position C, it will be seen that the cord clamping mechanism 69 would engage the dot-dash line position 105 of the cord 57, were it not moved to a position to one side of the dot-dash position, and just before the mechanism 69 reaches the cord, the air cylinder 38 that is connected with plate 34 will swing the latter to position 39 (FIG.
2) to permit the clamping mechanism 69 to pass the cord at position 105, and then the plate 34 and the clamps 46, 47 will be returned to their normal position D (FIG. 11).
While the clamping mechanism 69 is moving counterclockwise from position A to D in the wrapping step, the clamp 48 on plate 40 is inoperative, and the plate 40 will be held in the full line position under the tension of spring 45. The friction of the friction block 6 is not sul'ficient to overcome the tension of spring 45, but it does hold the cord straight.
When the cord clamping mechanism 69 reaches approximately the position E, which is approximately a 12 oclock position, the air cylinder 50 on plate 40 is actuated to cause clamp 47 to firmly grip the cord, and thereafter during movement of the clamping mechanism 69 through position A to position -B will place a substantial tension on the cord to tighten it about the bundle 1 since the plate 40 will be swung clockwise to move the clamping elements 46, 47 (now in cord clamping position X to position Y [FIG. 11]), and the plate 40 will swing against the resistance of spring 45.
When the cord clamping mechanism 69 reaches position B, the air cylinder 95 of the stapler is actuated to staple the lapping side-by-side end portions of the section of the cord that is tightly wrapped about the top of the bundle and to each other, after which the cord at the mechanism 69 is released through release of air pressure in cylinder 80.
The clamping and cutting mechanism, in open position, then moves again to and through position C but without the cord. This time the air cylinder 38 is not actuated to swing plate 40, hence the cord will be engaged by the clamping mechanism and/the latter will be actuated through actuation of cylinder to both sever the portion of the cord between the cutting mechanism and the staple, and to grip the end of the cord that extends to the clamp, of the tensioning device that includes plate 40, the clamping action taking place before the cutting of the cord.
The clamp 47 on plate 40 may be released after the cord is cut at position B to release the plate 40 and then the conveyor may be actuated to bring the next bundle to the desired position for tying while the clamping. mechanism 69 moves to position A and through the cycle as described.
The invention is not stricted to the details in it is obvious that changes without departing from within the scope of the I claim:
1. A tying machine comprising:
(a) a stationary frame;
(b) a gripping member adapted to releasably grip one end portion of a cord to be wrapped around an artiole to be tied;
to be considered as being rethe foregoing description, since and modifications may be made the spirit of the invention and appended claims.
7 (c) means supporting said gripping member on said frame for movement through a distance greater than 360 in a generally circular path for wrapping a section of said cor-d about an article positioned Within means for moving the latter axially of said path during the period in its movement when said' gripping p member hasapproximately moved a distance of 360? in said path to avoid interference of said gripping memb r with said section at said distance.
5. In combination with a support adapted to support a V horizontally elongated bundle of articles at a wrapping station with one end portion of said bundle projecting laterally outwardly thereof: r
the space enclosed by said'path and for positioning '5 (a) a tying machine adjacent to said support in a posithe ends of said section in side by side lapping relation generally in axial alignment with the longitution; dinal axis of said bundle when'the latter is on said ((1) cord securing means on said frame operable for support, and facing the projecting end of such movement from a position spaced from said path to bundle; r V 1 a position against a side of said articleand against 10 (b) an arm on said machine having an outer end genv said lapping ends of a section of said cord for erally projecting toward said support in apposition s stapling said lapping ends together and to said artispaced laterally from and in lapping relation to said cle; projecting end of a bundle onsaid support;
(e) means for so moving said cord securing means 7 (c) a cord gripping member on the projecting outer against said lapping ends for stapling them to said end of said arm operable to releasably grip one end .article; of a cord continuously extending from said rnern (f) a pivotally mounted cord tensioning means mountb r to a supply thereof; red on .said frame and being normally positioned in (d) said machine adapted, tohave a supply of said the same plane as the path in which the gripper cord having one end thereof releasably gripped by;- member travels; I said cord gripping member; 7
(g) and lmeans operably connected to said tensioning (e said cord extending away from said cord-gripping means for moving the latter axially of said path durmember in a direction generally normal to said axis ing the period in its movement when said gripping when said bundle is on said support; l I i member has approximately moved a distance of (f) means supporting aid apm and aid ord gri ping 7 360 in saidypathto avoid interference of said grip member when in gripping relation to said one end v i ping-member with said section at said distance. of said cord for movement in a generally circular 2.:In a tying machine as defined in claim 1: path around said axis through a distance greater than 1 (h) said last mentioned means comprising an element 360 for wrapping 'sad cord around said proj'ecting supported on said frame for lateral movement relaend of a bundle on said support; tive to the length of a cord gripped by said' gripping (g) stapling meansoperable for stapling said; cord'to I member, and i a said bundle after said cord has been wrapped around i i (i) guide means on said element through which such said projecting end of said bundle by said movement cord is adapted to extend to saidsgripping member, of, said arm and said cond'gri-pping member; 1 and e I s(h) cord tensioning means pivotally mounted on said,
(j) means connected with said element for so moving machine so that it may be moved into and out of a it laterally to so move said cord. plane which contains said circular path;
3. In a tying machine as defined in claim r (i) and means'to move'the tensioningrneans axially (k) friction means on said element for frictionally enof saidipath. a a i gaging such cord for maintaining the length of the v 6; Insthe combination as defined in claim 5: i 1 is V latter between 'said'gripping' member and said trio-'40 (j) Cord tensioningrneans is spaced irom said cord Q ition means taut during movement of said gripping wherein said cord'gripping members-in nonstopping, member in said path and while said grippingmember but releasable engagement with said cord movable is in gripping relation to said cord. 7 V with said cord during the latter'part of themoyement s V 4. In combination with a bundle support adapted to supi of said cord gripping member in said circular path port ahorizontally elongated bundle thereon at a Wrapp and during actuation of said stapling gneans for staping station with one end portion. of said bundle projectpling'said cord to said bundle" for holding the co'rdi ing laterally from said support: p a V taut around said projecting end of said bundle; s I (a) a tying machine mounted on a'frame at said wrap- (k) means connected with said cord gripping member 1 H ping station in a position generally-in axial alignoperable forreleasing the latter from gripping rela-"T merit 'with the longitudinal axis of such bundlewhen tion to the end of said cord after said cordhas' been the latter is on said support, and facing the projectstaple to said bundle by said stapling means and r 7 ,ing end of said bundle; i a while said tensioning means hold'theportionofsaid r a a said a ep i g g ally -w cord between the point or stapling'thereof and said ward said support and adapted to extend to a spaced tensioning means taut; v j e a e s H lapping relation relative to the said projecting end (1) said tensioning means being in a position holding f of a bundle, on said support; 7 '55 said portion of said cord in the circular path of said (c) cord gripping means on the projecting outer end cond gripping member for engagement thereof by of said arm being adapted to grip one endof a cord said member upon continued movement of said cord 7 to beiwrapped around the projecting end ofia bundle gripping member following said release thereof from on said support; 1 e p e a said cord; f 1 i 1 I (d)'"imeans connected with said cord gripping meansGO v(in) said cord gripping member being operable for for'movin'g it in a substantially annular path around gripping said cord upon said last mentioned engagesaid projecting end of a bundle on such support, for ment between said cord gripping member and said wrapping said cord around said bundle; portion of said cord; and a 7 (e) means for securing said cord to said bundle after (n) means with and adjacentto' said cord gripping" the latter completelyencircles the latter; member operable forisevering said portion of said i (f) a pivotally mounted cord tensioning means mountcord between said cord gripping member and said i ed on 'said f-rame and being normally positionediin" bundle substantially simultaneously with the actua-- the same .plane as the path in which the gripper tion of said cordgripping member for gripping said.
I member travels; V portioniof said cord, whereby movement of said (g) and means operably connected to said tensioning cord'gripping member in said path after said'severance of said portionwill wrap said cord about anotherbundle on said support. V 7. In the combination as defined in claim 5:
(0) means adjacent to said arm and saidcord gripping latter and said source of i member and between the References Cited by the Examiner UNITED STATES PATENTS Spry 10027 Byl 100-27 Harvey 10027 Kobylanski et a1. 53-198 BILLY J. WILHITE, Primary Examiner.

Claims (1)

1. A TYING MACHINE COMPRISING: (A) A STATIONARY FRAME; (B) A GRIPPING MEMBER ADAPTED TO RELEASABLY GRIP ONE END PORTION OF A CORD TO BE WRAPPED AROUND AN ARTICLE TO BE TIED; (C) MEANS SUPPORTING SAID GRIPPING MEMBER ON SAID FRAME FOR MOVEMENT THROUGH A DISTANCE GREATER THAN 360* IN A GENERALLY CIRCULAR PATH FOR WRAPPING A SECTION OF SAID CORD ABOUT AN ARTICLE POSITIONED WITHIN THE SPACE ENCLOSED BY SAID PATH AND FOR POSITIONING THE ENDS OF SAID SECTION IN SIDE BY SIDE LAPPING RELATION; (D) CORD SECURING MEANS ON SAID FRAME OPERABLE FOR MOVEMENT FROM A POSITION SPACED FROM SAID PATH TO A POSITION AGAINST A SIDE OF SAID ARTICLE AND AGAINST SAID LAPPING ENDS OF A SECTION OF SAID CORD FOR STAPLING SAID LAPPING ENDS TOGETHER AND TO SAID ARTICLE; (E) MEANS FOR SO MOVING SAID CORD SECURING MEANS AGAINST SAID LAPPING ENDS FOR STAPLING THEM TO SAID ARTICLE; (F) A PIVOTALLY MOUNTED CORD TENSIONING MEANS MOUNTED ON SAID FRAME AND BEING NORMALLY POSITIONED IN THE SAME PLANE AS THE PATH IN WHICH THE GRIPPER MEMBER TRAVELS;
US511466A 1965-12-03 1965-12-03 Tying machine Expired - Lifetime US3315593A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1499703A (en) * 1921-03-07 1924-07-01 George Barnaby Machine for packaging articles
US2182221A (en) * 1937-05-10 1939-12-05 Frederick M Byl Box strapping machine
US2262232A (en) * 1937-11-27 1941-11-11 Gerrard Co Inc Tying machine
US3126686A (en) * 1964-03-31 Automatic strapping machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126686A (en) * 1964-03-31 Automatic strapping machine
US1499703A (en) * 1921-03-07 1924-07-01 George Barnaby Machine for packaging articles
US2182221A (en) * 1937-05-10 1939-12-05 Frederick M Byl Box strapping machine
US2262232A (en) * 1937-11-27 1941-11-11 Gerrard Co Inc Tying machine

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