US3863558A

US3863558A - Wire tie device

Info

Publication number: US3863558A
Application number: US383773A
Authority: US
Inventors: Cecil Dale Trumbo
Original assignee: Individual
Current assignee: Individual
Priority date: 1973-07-30
Filing date: 1973-07-30
Publication date: 1975-02-04
Anticipated expiration: 1992-02-04

Abstract

An inverted channel-shaped guide is detachably supported on the under face of the upper platen of a baling press. The guide is arranged to guide one preformed looped end of a bale tie wire to a knotting position in the guide while the platen is in raised inactive position and to guide the other preformed end loop of the wire into a knotting position with respect to the first looped end when the platen is in baling position. Upon initially raising the platen and guide a short distance from the bale the expansion of the bale tensions the wire and pulls the interengaged looped ends in a direction away from each other, thereby drawing them into a knot. Upon raising of the platen clear of the bale, the guide is released from the knotted wire. The first one of the looped ends is inserted in the guide axially of the wire from one end and the looped end is guided by interior wall portions of the guide while the adjacent portion of the wire is held magnetically, by means of permanent magnets carried by the guide, for axial movement in the inserting direction while being permitted thereby to adjust about its axis. A dump door is arranged at the open side of the guide at the knotting position. The door is spring biased to a closed position in which a cam and notch on its upper surface engage the first preformed looped end as it moves into the knotting position and prevents movement of the wire opposite to the direction of insertion. The door is opened downwardly against the force of its biasing spring by the looped ends of the wire as the looped ends are being drawn tightly into a knot and the wire, due to axial tension imposed by the bale, is being moved downwardly toward the bale at and adjacent its knotted ends. When the platen and guide are lifted clear of the bale, the guide releases fully from the wire and the dump door is reclosed by its spring.

Description

Unites Trumbo States Patent [191 [451 Feb. 4, 1975 WIRE TIE DEVICE [76] Inventor: Cecil Dale Trumbo, 13122 Flint Dr.,

Santa Ana, Calif. 92705 [22] Filed: July 30, 1973 [21] App]. No.: 383,773

[52] U.S. Cl 100/33, 100/3, 100/34 [51] Int. Cl B65b 13/26 [58] Field of Search 100/3, 8, 34, 25, 26, 33; 140/101,111,114

[56] References Cited UNITED STATES PATENTS 3,020,827 2/1962 Luthi 100/26 3,477,363 1l/1969 Trumbo 100/3 X Primary Examiner-Billy J. Wilhite Attorney, Agent, or Firm.lohn Harrow Leonard [57 ABSTRACT An inverted channel-shaped guide is detachably supported on the under face of the upper platen of a baling press. The guide is arranged to guide one preformed looped end of a bale tie wire to a knotting position in the guide while the platen is in raised inactive position and to guide the other preformed end loop of the wire into a knotting position with respect to the first looped end when the platen is in baling position. Upon initially raising the platen and guide a short dis tance from the bale the expansion of the bale tensions the wire and pulls the interengaged looped ends in a direction away from each other. thereby drawing them into a knot. Upon raising of the platen clear of the bale, the guide is released from the knotted wire. The first one of the looped ends is inserted in the guide axially of the wire from one end and the looped end is guided by interior wall portions of the guide while the adjacent portion of the wire is held magnetically. by means of permanent magnets carried by the guide. for axial movement in the inserting direction while being permitted thereby to adjust about its axis. A dump door is arranged at the open side of the guide at the knotting position. The door is spring biased to a closed position in which a cam and notch on its upper surface engage the first preformed looped end as it moves into the knotting position and prevents movement of the wire opposite to the direction of insertion. The door is opened downwardly against the force of its biasing spring by the looped ends of the wire as the looped ends are being drawn tightly into a knot and the wire, due to axial tension imposed by the bale, is being moved downwardly toward the bale at and adjacent its knotted ends. When the platen and guide are lifted clear of the bale, the guide releases fully from the wire and the dump door is reclosed by its spring.

10 Claims, 15 Drawing; Figures PATENTED FEB 4197s SHEET 2 OF 4 FIGB.

FIG-2.

IO, 34 f /34 I/IO FIG. 5.

FIG. 4.

all

WIRE TIE DEvicE BACKGROUND OF INVENTION I. Field of Invention Wire tie device.

2. Description of Prior Art As disclosed in my US. Pat. No. 3,477,363, of Nov. II, 1969, wire tie devices have been used in baling presses to facilitate the tying together of the preformed looped ends of bale tie wire. As therein more fully disclosed, each wire tie device comprises a guide and holder in the form of an inverted channel mounted on the underface of the upper platen of a conventional baling press so that the channel is open toward the material being baled. The channel has interior guiding wall surfaces which guide one looped end of the wire for movement endwise of the wire, looped end foremost, while retaining the looped end portion in a properly oriented position about the wire axis for connection to the other looped end of the wire when the latter is subsequently disposed in proper interengaging relation thereto. The one looped end of the wire is inserted into the guide at its entrance and is then slid endwise, looped end foremost, along the guide until the looped end engages a suitable stop which stops the inserted end at a knotting position. At the knotting position is a downwardly swinging dump door mounted on the channel. The dump door is spring biased upwardly to a horizontal position in which it extends partway across the open bottom of the guide in supporting relation to the looped end of the wire. The dump door, in its horizontal position, holds the wire in knotting position prior to and during the baling and knotting operation.

While the one looped end of the wire is thus held in knotting position, the upper platen moves to the baling position in whichthe guide is pressed down against the upper surface of the baled material. While the guide is held in this position, the other preformed looped end ofthe wire is pushed into the other end ofthe guide and guided thereby into knotting position in which the looped ends interengage in a manner such that when they are pulled away from each other .endwise of the wire, the loops are drawn into a knot. Upon raising of the upper platen, the baled material expands and tensions the wire, pulling the looped ends of the wire away from each other, drawing them into a knot, and causing the knotted portion of the wire to move downwardly toward the bale.

The dump door is so arranged that it is swung downwardly out of its horizontal position against the force of its'biasing spring by this downward component movement of the wire. As the upper platen and channel are lifted clear of the bale, the weight of the bale on the wire pulls the wire downwardly transversely of its length clear of the guide.

One disadvantage in this structure is that a detent is required to hold the one end of the wire in the proper longitudinal position and a second dump door is required for cooperation with the detent. Likewise, the wire had to be inserted in a rotated position about its axis different from that required for knotting. Therefore, a specialized type of orienting means had to be provided in the channel at a position beyond the detent in the entry direction of the wire for engaging and rotating the wire about its axis to a properly oriented position.

In the present invention, the detent and second dump door are eliminated. Instead, the guide has a relatively free straight passage so shaped in cross section that the wire enters the guide looped end foremost in properly oriented position for knotting. It is constrained to travel along the guide passage in properly oriented position relative to the cross section of the guide passage by permanent magnets located at selected positions along the channel. When the looped end of the wire reaches knotting position, it engages a cam surface which cause it to enter a holding notch in the dump door. The holding notch constrains the wire from movement out of knotting position, so that the other looped end can be guided into knotting position relative thereto as in the prior art.

SUMMARY The present invention is an improvement on the wire tie device disclosed in the above identified patent. The guide is such that the wire can enter only in substantially the rotated position about its axis necessary to dispose the loop in the proper knotting position about its axis. During endwise insertion of the wire and movement of the looped end to knotting position, the wire is held magnetically so that it can :readily orient and adjust itself to assure that the looped end is placed in the proper position for knotting. When the looped end reaches knotting position, it is held securely in the position for proper interengagement with the opposite looped end of the wire, for being drawn into a knot. The opposite end of the wire is fed into the device from the opposite end of the device in a direction opposite to that in which the first end was fed. The wire is readily pulled out of the device by the bale itself.

Various other objects and advantages of the invention will become apparent from the following description wherein reference is made to the drawing.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of the wire holder and guide embodying the principles of the present invention;

FIG. 2 is a cross sectional view of the holder and guide taken on the line 2-2 in FIG. 1, the initially inserted one of the looped ends of the wire to be knotted being indicated;

FIG. 3 is a right end elevation of the wire holder and guide illustrated in FIG. 1 and showing one looped end of the wire being inserted therein;

FIG. 4 is a left end elevation of the wire holder and guide and showing the opposite looped end of the wire being inserted therein and interengaged with the one looped end;

FIG. 5 is a cross sectional view of the device taken on the line 5-5 in FIG. 1;

FIG. 6 is a fragmentary longitudinal sectional view of the guide and holder, and is taken on the line 66 in FIG. 1, the one looped end of the wire approaching knotting position being indicated in solid lines and the knotting position being indicated in dot and dash lines;

FIG. 7 is a perspective view of a dump door of the guide and holder, located at the knotting position;

FIG. 8 is a fragmentary top plan view of the guide showing the opposite ends of the wire in position for initiating interengagement for knotting;

99 of FIG. 8;

FIG. 10 is a view similar to FIG. 8 showing the wires approaching full interengaging position;

FIG. 11 is a vertical sectional view taken on the line 11ll of FIG. 10;

FIG. 12 is a view similar to FIG. 8 showing the wires fully interengaged and approaching full knotting position;

FIG. 13 is a vertical sectional view taken on the line l3l3 of FIG. 12;

FIG. 14 is a diagrammatic end view showing a conventional baling press with several of the devices of the present invention carried by the upper platen thereof; and

FIG. 15 is a front elevation of the structure illustrated in FIG. 14.

Referring to the drawings, the guide and holding devices of the present invention are shown in FIGS. 14 and 15 as mounted in a baling press, indicated generally at 1, having a bolster 2 and an upper platen 3 which is operated by a suitable hydraulic piston and cylinder assemblage 4 for compressing material into a bale B. A plurality of upwardly open channels 5 are mounted on the bolster for accommodating baling wires in the selected positions along the underside of the bale. Guide and holder devices embodying the present invention are mounted on the underface of the upper platen 3 and open downwardly toward, and are aligned, respectively, with, the channels 5.

Referring specifically to the illustrative example, the guide and holder comprises a pair of laterally spaced

parallel side walls

11 and 12 and a top wall 13 which provide a downwardly open channel, indicated at 14. Carried on the wall 11 in spacedrelation below the top wall 13 is a guide wall 15 which bridges across the major portion of the space between the inner faces of the

walls

11 and 12, thus defining a discharge slot 16 between the innermost edge of the guide wall 15 and the wall 12.

The spacing of the

walls

13 and 15 is such that the looped end of the wire can be disposed between these walls with the portion of the wire adjacent the loop lying close to the intersection of the inner faces of the wall 12 and top wall 13 in which position the wire is disposed above, and in alignment transversely of its axis with, the notch 16, and can drop readily therethrough when not restrained. The spacing of the top wall 13 and guide wall 15 is such that the loop is held snugly parallel to its knot forming position so long as the main length of the wire is engaged with the

walls

13 and 12 adjacent their intersection.

In order to hold the main length of the wire adjacent the looped end in this position, suitable permanent magnets are mounted in the walls of the guide. Preferably one permanent magnet 18 is mounted in the top wall 13 near the right entry end of the channel 14. Another permanent magnet 19 is mounted in the wall 12 near the same end. These magnets are arranged so that their inner faces are coplanar with the inner faces of the

walls

12 and 13, respectively, and are near the intersection of these faces. Another permanent magnet 20 is mounted in the wall 12 so that its inner face is adjacent the intersection of the inner face of the wall 12 with the wall 13. The magnet 20 is somewhat removed, endwise of the guide, from the magnet 19. Thus the wire W is held parallel to a position it is to assume during knotting. Due to the nature of magnetic flux, the wire can be twisted about its axis, if necessary, while held in position transversely of the cross section of the channel.

As disclosed in'the above patent, the'ends of a tie wire normally are looped opposite from each other transversely of the wire axis and the loops, when formed, are bent out of their normal planes, respectively, in opposite directions so that the loops are biased to the axis of the wire in directions apart. In accordance with the present application, the one looped end of the wire is fed into the right end of the guide while disposed with its loop sloping from the main body of the wire downwardly inwardly endwise of the guide, as illustrated in FIGS. 2 and 6. As mentioned, the wall 15 is spaced relative to the wall 13 so that with the loop in this position and the main length of wire disposed against the

walls

12 and 13 as near their intersection as the diameter of the wire permits, the wire can be slid lengthwise of the guide, looped end foremost,.without substantial rotation about the wire axis, the magnets affording sufficient holding power to assure that the main length of wire is retained in its proper position but allowing the wire to be rocked slightly about its axis to the extent that may be necessary for self-adjustment.

The top wall 13 and guide wall 15 terminate short of the opposite end of the guide, as indicated at 22, so that the portion of the wire, being fed in from the right end, can deflect upwardly near the looped end portion as a result of the inherent resiliency of the wire.

Just beyond the ends of the

walls

13 and 15, as indicated at 22, the guide is provided with a dump door 23 the upper surface 24 of which is flush with the upper surface of the wall 15 in the closed position of the door. The door 23 extends substantially the entire width of the channel 14. The side wall 11 is cut out to provide a notch 25, which extends from adjacent the end of the wall 15 to the opposite end of the guide door 23, and the wall 12 has a cut out portion or notch 26 extending from the innermost end of the door or end of the wall 15 entirely to the adjacent end of the guide. The notch 26 has a deflecting wall 26a at its inner end. The door 23 extends laterally of the guide, one edge extending into the notch 25. The door is hingedly secured at the one edge to the wall 11 for rocking about the horizontal axis of a hinge pin 27. The door 23 is biased by a spring 28 to a position in which its upper face 24 is coplanar with the upper face of the wall 15. The door 23 has a lateral guide wall 29 projecting upwardly from the upper face 24 and an end abutment wall 30 which extends upwardly from the face 24 in a position to be engaged by the leading edge of the looped end of the wire.

Mounted on the upper face 24 of the door 23 is a cam 31, the upper surface of which slopes upwardly fron the face 24 in a direction toward the wall 30 and which terminates, as indicated at 32, short of the wall 30 and thereby provides a notch 33 into which the lower edge of the loop drops, or snaps under the strain on the flexed wire, and by which the loop is held against axial movement to any appreciable extent.

Mounted on the inner face of the wall 11, in a position endwise of the guide near the cam 31, is a stop 34, the inner end surface of which slopes downwardly in a direction toward the wall 30. This cam surface is arranged so that, as the leading end of the wire moves in the direction from the right end of the guide into knotting position, it is engaged by the end face of the loop and assures that the loop cannot rise out of the notch 33 during interengagement of the looped ends of the wire.

The cam 31 is of such height that in order for the loop to pass thereover into the notch 33, the loop is lifted and stresses the main length of the wire slightly vertically transversely of its axis, the door 23 yielding resiliently downwardly, if necessary, so that the loop, upon passing the high end of the cam 31, enters the notch 33 with a snap action and is held in slightly stressed relation therein with the door returned to its normally closed or horizontal position. While the loop end of the wire is held in this position, the loop at the opposite end of the wire, which had been preformed by bending the wire transversely of its axis in a direction 180 from the direction of bending to form the first mentioned loop, and which had been bent out of its plane in a direction opposite the first mentioned loop, can readily be interengaged with the loop in the notch 33 in knotting position.

Referring to FIGS. 8 through 13, the looped end of the wire to be inserted from the left end of the guide is disposed with its loop sloping upwardly to the right and the main length of the wire adjacent the loop is dis posed at the loop side of, and alongside the main length ofthe wire first inserted from the right end of the guide, and with the free end portion of the loop of the former wire and also the major portion of the loop disposed in the notch 26. This relative position of the looped ends is shown in FIGS. 8 and J.

The workman, having disposed the left end of the wire in the position described, pushes the loop of the left end wire endwise of the guide until the end of the loop strikes the deflecting wall 26a, as illustrated in FIGS. 10 and 11, and then is deflected thereby transversely of the guide, as the endwise insertion is continued, until the free end portion of each loop is aligned with the passage through the loop so that, when the wire ends are pulled axially of the wire in opposite di' rections, the main length of the wire near each loop and the free end of that loop pass through the other loop into the knotting position illustrated in FIGS. 12 and 13. When the platen 3 is slightly raised, the opposite ends of the wire are pulled further in a direction away from each other by the pressure of the baled materal, and the looped ends are drawn into a tight knot. The door 23 can yield resiliently, as necessary to accommodate the wire ends during this operation.

When the wire is thus knotted, the platen 3 is lifted, carrying with it the guide 10. The unlooped portions of the wire within the guide are pulled loose from the magnets and drop out through the notch 16, due to the weight of the bale, the platen moves clear of the bale. The knotted portion of the wire moves downwardly against the dump door, swinging the door open against the force of itsbiasing spring, and lowering clear of the door, whereupon the door recloses.

It appears from the foregoing, therefore, that by virtue of using the permanent magnets and the particular drop door, as described, the looped end of the wire can be moved readily into knotting position, knotted by lifting the platen, and withdrawn from the guide without the necessity for engaging the unlooped portions of the wire with mechanical means, such as the detents heretofore required, to hold the wire in proper position as it is moved along the guide. The magnets hold the wire firmly during movement of the ends to knotting position, yet release the wire readily under the stress occasioned by the weight of the bale when the platen is lifted.

Having thus described my invention, 1 claim: 1.

1. A wire tie device for use with a baling press upon connection to the upper platen of the baling press for holding and guiding one end ofa length of bailing wire. having preformed loops at its ends, respectively, endwise with said one end foremost, into a knotting position and for holding and guiding the other end of the length of wire into an interengaged relation with the one end, when the platen is in baling position with re spect to the material, so that the ends are drawn into a knot by the pull of the ends in the opposite directions by expansion of the baling material upon raising of the platen;

said device comprising a body having therein an elongated open inverted channel open at opposite ends and defined by atop wall and depending side walls spaced apart laterally of the top wall, and a guide wall carried by one of said side walls and spaced below the top wall and extending transversely of the channel and terminating edgewise in laterally spaced relation to the other side wall, thereby providing a wire discharge passage;

said channel having a wire knotting station near one end; and

permanent magnet means carried by the body in lat erally spaced relation to said one side wall and spaced from said passage in a direction toward the top wall, and operative while said one end of the wire is being fed loop end foremost to the knotting station to magnetically hold the portion of the length of wire which is between the loop of said one end of the wire and the other end of the channel in predetermined positions relative to the cross section of the body in which positions the wire is above and aligned with said discharge passage and spaced from said one side wall, and to hold the wire for movement of the wire endwise in opposite directions while it is in said predetermined positions.

2. A wire tie device according to claim 1 wherein the permanent magnet means are of sufficient strength to hold said unlooped portion at said one end of the wire lightly juxtaposed against the inner face of said other side wall near said other end of the channel.

3. A wire tie device according to claim 2 wherein said permanent magnet means are permanent magnets mounted in said other side wall.

4. A wire tie device according to claim 3 wherein an additional permanent magnet is mounted in said top wall near said other end of the body in spaced relation to said one side wall and at least close to said other side wall, so as to be aligned, in a direction from said top wall toward the open side of the channel, with said passage.

5. A wire tie device according to claim 3 wherein the permanent magnets have their inner faces exposed at, and coplanar with said inner face of said other side wall.

6. The structure according to claim 1 wherein said guide wall extends from adjacent one end of the channel toward, but terminates in spaced relation endwise to, the other end of the channel;

a dump door is carried by the body at said other end of the channel adjacent the end of the guide wall which is adjacent to said other end of the channel;

means support the door for swinging movement downwardly to an open position relative to the open side of the channel;

spring means bias the door upwardly to a closed position relative to the open side of the channel;

mechanical holding means are carried on the upper face of the door and are arranged to be engaged by the preformed looped end of said one end of the wire being fed endwise along the channel from said one end of the channel when said latter looped end reaches the knotting station, and said mechanical holding means are operative when so engaged with said looped end of the wire to hold the wire in knotting position at the knotting station and to constrain the wire from endwise movement; and

means are provided in the channel for engaging the opposite looped end of the wire and guiding said opposite looped end and the wire adjacent thereto, looped end foremost, into knotting position relative to said one looped end.

7. A wire tie device according to claim 6 wherein said mechanical holding means include a cam surface on the upper face of the door, the cam surface is inclined upwardly in a direction toward said other end of the channel and the door carries a holding abutment at the higher end of said cam surface, defined by an upwardly opening notch, for receiving the loop of said one end and thereby effects said constraint of said last mentioned loop in the knotting position at the knotting station.

8. A wire tie device according, to claim 7 wherein the top wall of the channel near said other end has a cam overhanging said door and sloping downwardly in the direction toward said one end of the channel and positioned to engage the looped end of said one end of the wire and force it into the notch and constrain the loop from rising out of said notch.

9. A wire tie device for use with a baling press upon connection to the upper platen of a baling press for holding and guiding one end of a length of baling wire having preformed loops at its ends, respectively, into a knotting position while the platen is raised, and for holding and guiding the other end of the length of wire into an interengaged relation with the one end when the platen is in baling position with respect to the material, so that the ends are drawn into a knot by the pull of the ends in the opposite directions by expansion of the baling material upon raising of the platen;

said device comprising a body having therein an elongated open inverted channel open at opposite ends and defined by a top wall and depending side walls spaced apart laterally of the top wall, and a guide wall carried by one of said side walls and spaced below the top wall and extending transversely of the channel and terminating edgewise in laterally spaced relation to the other side wall, thereby providing a wire discharge passage;

said channel having a wire knotting station near one end;

said guide wall extending from adjacent one end of the channel toward, and terminating in spaced relation endwise to, the other end of the channel;

a dump door carried by the body at said other end of the channel adjacent the end of the guide wall which is adjacent to said other end of the channel;

means supporting the door for swinging movement downwardly to an open position relative to the open side of the channel;

spring means biasing the door upwardly to a closed position relative to the open side of the channel;

mechanical holding means carried on the upper face of the door and arranged to be engaged by the preformed looped end of said one end of the wire being fed endwise along the channel from said one end of the channel when said latter preformed looped end reaches said knotting station, and when so engaged by said latter preformed looped end of the wire, to hold said latter preformed looped end of the wire in knotting position at the knotting station; and

means in the channel for engaging the opposite looped end of the wire and guiding said opposite looped end of the wire, looped end foremost, into knotting position relative to the looped end of said one end of the wire.

10. A wire tie device according to claim 9 wherein said mechanical holding means include a cam surface on the upper face of the door, the cam surface is inclined upwardly in a direction toward said other end of the channel and the door carries a holding abutment at the higher end of said cam surface, defined by an upwardly opening notch, for receiving the loop of said one end and thereby effects said contraint of said last mentioned loop in the knotting position at the knotting station.

Claims

1. A wire tie device for use with a baling press upon connection to the upper platen of the baling press for holding and guiding one end of a length of bailing wire, having preformed loops at its ends, respectively, endwise with said one end foremost, into a knotting position and for holding and guiding the other end of the length of wire into an interengaged relation with the one end, when the platen is in baling position with respect to the material, so that the ends are drawn into a knot by the pull of the ends in the opposite directions by expansion of the baling material upon raising of the platen; said device comprising a body having therein an elongated open inverted channel open at opposite ends and defined by a top wall and depending side walls spaced apart laterally of the top wall, and a guide wall carried by one of said side walls and spaced below the top wall and extending transversely of the channel and terminating edgewise in laterally spaced relation to the other side wall, thereby providing a wire discharge passage; said channel having a wire knotting station near one end; and permanent magnet means carried by the body in laterally spaced relation to said one side wall and spaced from said passage in a direction toward the top wall, and operative while said one end of the wire is being fed loop end foremost to the knotting station to magnetically hold the portion of the length of wire which is between the loop of said one end of the wire and the other end of the channel in predetermined positions relative to the cross section of the body in which positions the wire is above and aligned with said discharge passage and spaced from said one side wall, and to hold the wire for movement of the wire endwise in opposite directions while it is in said predetermined positions.

6. The structure according to claim 1 wherein said guide wall extends from adjacent one end of the channel toward, but terminates in spaced relation endwise to, the other end of the channel; a dump door is carried by the body at said other end of the channel adjacent the end of the guide wall which is adjacent to said other end of the channel; means support the door for swinging movement downwardly to an open position relative to the open side of the channel; spring means bias the door upwardly to a closed position relative to the open side of the channel; mechanical holding means are carried on the upper face of the door and are arranged to be engaged by the preformed looped end of said one end of the wire being fed endwise along the channel from said one end of the channel when said latter looped end reaches the knotting station, and said mechanical holding means are operative when so engaged with said looped end of the wire to hold the wire in knotting position at the knotting station and to constrain the wire from endwise movement; and means are provided in the channel for engaging the opposite looped end of the wire and guiding said opposite looped end and the wire adjacent thereto, looped end foremost, into knotting position relative to said one looped end.

8. A wire tie device according to claim 7 wherein the top wall of the channel near said other end has a cam overhangIng said door and sloping downwardly in the direction toward said one end of the channel and positioned to engage the looped end of said one end of the wire and force it into the notch and constrain the loop from rising out of said notch.

9. A wire tie device for use with a baling press upon connection to the upper platen of a baling press for holding and guiding one end of a length of baling wire having preformed loops at its ends, respectively, into a knotting position while the platen is raised, and for holding and guiding the other end of the length of wire into an interengaged relation with the one end when the platen is in baling position with respect to the material, so that the ends are drawn into a knot by the pull of the ends in the opposite directions by expansion of the baling material upon raising of the platen; said device comprising a body having therein an elongated open inverted channel open at opposite ends and defined by a top wall and depending side walls spaced apart laterally of the top wall, and a guide wall carried by one of said side walls and spaced below the top wall and extending transversely of the channel and terminating edgewise in laterally spaced relation to the other side wall, thereby providing a wire discharge passage; said channel having a wire knotting station near one end; said guide wall extending from adjacent one end of the channel toward, and terminating in spaced relation endwise to, the other end of the channel; a dump door carried by the body at said other end of the channel adjacent the end of the guide wall which is adjacent to said other end of the channel; means supporting the door for swinging movement downwardly to an open position relative to the open side of the channel; spring means biasing the door upwardly to a closed position relative to the open side of the channel; mechanical holding means carried on the upper face of the door and arranged to be engaged by the preformed looped end of said one end of the wire being fed endwise along the channel from said one end of the channel when said latter preformed looped end reaches said knotting station, and when so engaged by said latter preformed looped end of the wire, to hold said latter preformed looped end of the wire in knotting position at the knotting station; and means in the channel for engaging the opposite looped end of the wire and guiding said opposite looped end of the wire, looped end foremost, into knotting position relative to the looped end of said one end of the wire.