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WO2000010875A1 - Bale wrap retaining apparatus - Google Patents

Bale wrap retaining apparatus Download PDF

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Publication number
WO2000010875A1
WO2000010875A1 PCT/CA1999/000756 CA9900756W WO0010875A1 WO 2000010875 A1 WO2000010875 A1 WO 2000010875A1 CA 9900756 W CA9900756 W CA 9900756W WO 0010875 A1 WO0010875 A1 WO 0010875A1
Authority
WO
WIPO (PCT)
Prior art keywords
bale
wrap
track
retainer
retainer device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CA1999/000756
Other languages
French (fr)
Inventor
Brian Woodley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU52749/99A priority Critical patent/AU5274999A/en
Publication of WO2000010875A1 publication Critical patent/WO2000010875A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B65B27/12—Baling or bundling compressible fibrous material, e.g. peat
    • B65B27/125—Baling or bundling compressible fibrous material, e.g. peat and wrapping or bagging

Definitions

  • the present invention relates to bale wrap retaining apparatus for use in bale wrapping machines and is useful in particular, but not exclusively, for temporarily retaining partially folded wrappers on bales of paper pulp.
  • a covering sheet is firstly wrapped around a bale, with portions of the covering sheet folded against opposite sides of the bale, and the bale is then advanced to a first tying machine, at which a first wire is tied around the bale and its wrap in order to retain the wrap against the opposite sides of the bale.
  • the thus partially wrapped bale is then advanced along a path of travel and is either rotated through 90 degrees or is passed through a change of direction of 90 degrees and advanced further to a folding machine, at which projecting portions of the wrapper are folded against opposite ends of the bale.
  • the thus-wrapped bale is then advanced to a second tying machine, at which the second wire is tied around the bale, at right angles to the first wire, in order to retain the wrap folds against the opposite ends of the bale.
  • glue instead of a wire, is employed to retain the wrap. More particularly, glue is applied to the wrapper, which is then folded and pressed against the sides of the bale, and the bale is then advanced to an end folder, where the ends are glued and then folded and pressed against the ends of the bale.
  • the disadvantage of this apparatus is that the bale must remain stationary while the glue dries, which produces a bottleneck in the production process. Modern mills act at fast speeds and require correspondingly fast bale wrapping, and the mill operators are therefore reluctant to employ such a slow system.
  • a bale wrap retaining apparatus has a track extending along a path of travel of a bale, a bale wrap retainer device, and a suspension movable along the track and suspending the bale wrap retainer device from the track, the suspension being operable to move the bale wrap retainer device between a raised position, in which the bale wrap retainer device is spaced upwardly from the bale, and a lowered position, in which the bale wrap retainer device is in gripping engagement with a wrapper on the bale.
  • Figure 2 shows a plan view of the apparatus of Figure 1;
  • Figure 3 shows a view in side elevation of the apparatus of Figures 1 and 2;
  • Figure 4 shows a broken-away view, in front elevation, of parts of the apparatus of Figure 1 ;
  • Figure 5 shows a side view, partly broken away, of parts of the apparatus of Figures 1 to 4.
  • Figure 6 shows a plan view of a pulp bale wrapping apparatus in which the retaining apparatus of Figures 1 to 5 can be employed.
  • FIG. 1 of the accompanying the drawings there is shown a bale wrap retaining apparatus which comprises a bale wrap retainer device indicated generally by reference numeral 10, which is illustrated in gripping engagement with a bale 12 and, more particularly, in contact with a cover sheet forming a wrapper 11 which is partially wrapped around the bale 12.
  • a bale wrap retainer device indicated generally by reference numeral 10
  • FIG. 1 there is shown a bale wrap retaining apparatus which comprises a bale wrap retainer device indicated generally by reference numeral 10, which is illustrated in gripping engagement with a bale 12 and, more particularly, in contact with a cover sheet forming a wrapper 11 which is partially wrapped around the bale 12.
  • the bale wrap retainer device 10 comprises a support in the form of a transverse beam 14 which, at each of its opposite ends 15, carries a bale wrap retainer member indicated generally by reference numeral 16.
  • Each of the bale wrap retainer members 16 comprises an angle-shaped plate 18 which has outwardly curved edges 20 and which engages, as shown in Figure 1 , in snug engagement with an upper side corner 22 of the bale 12 so as to retain folded side portions 24 of the wrapper 1 1 against opposite sides 25 of the bale 12.
  • Each of the angle-shaped plates 18 is suspended from a respective end 15 of the transverse beam 14 by a swing arm 26 which it is pivotally connected at its opposite ends to the transverse beam 14 and to the respective angle-shaped plate 18.
  • the transverse beam 14 is suspended beneath a track i the form of an I-beam 28 by means of a suspension indicated generally by reference numeral 30.
  • This suspension 30 includes a pneumatically expansible and contractible bellows 32, which can be pneumatically inflated so as to move the transverse beam 14 downwardly from the I-beam 28 to a lowered position, and a pair of helical tension springs 34, which act as return springs biassing the transverse beam 14 upwardly towards the I-beam 28 into a raised position.
  • the bellows 32 and the springs 34 are connected to a carriage in the form of an upwardly open housing 36, which receives the I-beam 28, and which has rollers 38 in rolling the engagement with flanges of the I-beam 28 so as to support the bale wrap retainer device 10 for movement to and fro along the I-beam 28.
  • the transverse beam 14 is formed by a pair of elongate parallel plates 40, which are connected together by means of rods 42, and the swing arms
  • bale wrap retainer members 16 are pivotable about the rods 42.
  • the swing arms 26 and, thereby, the bale wrap retainer members 16 are urged towards one another and, thus, towards of the opposite sides of the bale 12 by means of helical tension springs 44, which are connected between the swing arms 26 and bars 46 extending between the plates 40.
  • the angle-shaped plate 18 hangs from the beam 14 with its two sides 48 and 50 at an inclination to the horizontal.
  • the transverse beam 14 is lowered and lower side 48 of the plate comes into contact with the bale 12
  • the side 50 is pressed downwardly onto the top of the bale 12.
  • both sides of the angle-shaped plate 18 slide on the bale 12 or, more particularly, on the cover sheet wrapped around the bale 12, into the positions in which they are shown in chain-dot lines and in which the angle-shaped plate 18 is snugly engaged with the upper top corner 22 of the bale 12.
  • Figure 6 shows a pulp bale wrapping apparatus or line which has a conventional wrap dispenser 45 at which the wrapper 11 is dispensed, in known manner, onto the bale 12 and folded against opposite sides of the bale 12 into the condition shown in Figure 1.
  • the wrap dispenser 45 is followed by a first tying machine 47 which is not employed when the present invention is in use but which may be provided as a back-up or for occasional special orders requiring first and second wrap retaining wires to be applied in the conventional manner as described above.
  • the I-beam 28 extends from this first tying machine 45 to an end folder 49.
  • bale wrap retainer members 16 With the folds of the wrapper 11 held against the opposite sides of the bale 12 by the bale wrap retainer members 16 as described above, at the end of the I-beam 28 proximate the tying machine 47, the bale 12 is advanced along its path of travel, through to a bale spinner 51 , which remains unoperated, to the end folder 49, at which portions of the wrapper 11 projecting from opposite ends of the wrap are folded against the opposite ends of the bale.
  • the bale wrap retainer device 10 is withdrawn from the bale 12 before the ends of the wrapper 11 are then folded against the bale 12.
  • the bale wrap retainer device 10 is driven along the I-beam by its engagement with the bale 12.
  • the bale wrap retainer device When released from the bale 12, the bale wrap retainer device is returned to its initial position by a drive which includes a prime mover in the form of an electric motor 52 mounted on the housing 36, a drive gear 54 on the shaft 55 of the motor 52 and a driven gear 56 meshing with the drive gear 54.
  • the driven gear 56 is coaxial with a drive wheel 58 forming a drive member, the driven gear 56 and the drive wheel 58 being carried on one end of an arm 60, which is pivotable about the motor shaft 55 against the action of a helical tension spring 62 when the drive gear 54 is rotated by the electric motor 52. This pivotation brings the drive wheel into frictional driving engagement with the I-beam 28 so as to propel the bale wrap retainer device 10 along the I-beam 28.
  • the bale 12 is then advanced to a second tying machine 53, where a length of wire (not shown) is tied around the bale 12 to secure the wrapper 11 on the bale 12. Consequently, only one such wire is required for that purpose.
  • the present bale wrap retaining apparatus may be employed in bale wrapping lines in which glue, instead of wire, is used to retain the wrap.
  • glue instead of wire
  • the present apparatus applies sideways pressure against the wrap at the opposite sides of the bale, while the glue dries and while the bale is advanced from the wrap dispenser 45 to allow a succeeding bale to be wrapped in the wrap dispenser 45, thus reducing the time required for the wrapping process.
  • the present apparatus allows the use of stronger, longer-lasting adhesive which will maintain better bale quality without slowing production.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

A bale wrap retaining apparatus for a paper pulp bale wrapping machine has a bale wrap retainer device (10) movable up and down between a raised position, in which the retainer device (10) is spaced upwardly from a bale (12), and a lowered position, in which the retainer device (10) is in gripping engagement with the bale (12). The retainer device (10) has retainer members (16) engageable with opposite sides of the bale (12) in retaining engagement with portions of a folded wrapper on the bale (12). A track (28) extends along and above a path of travel of the bale (12) and a suspension (30) between the retainer device (10) and the track (28), supports the retainer device (10) from the track (28) for movement along the track (28) to a folder (49) and a tying machine (53) while maintaining the retaining engagement of the retainer members with the wrapper.

Description

BALE WRAP RETAINING APPARATUS
Technical Field
The present invention relates to bale wrap retaining apparatus for use in bale wrapping machines and is useful in particular, but not exclusively, for temporarily retaining partially folded wrappers on bales of paper pulp.
Background Art
In a conventional pulp bale wrapping apparatus, a covering sheet is firstly wrapped around a bale, with portions of the covering sheet folded against opposite sides of the bale, and the bale is then advanced to a first tying machine, at which a first wire is tied around the bale and its wrap in order to retain the wrap against the opposite sides of the bale. The thus partially wrapped bale is then advanced along a path of travel and is either rotated through 90 degrees or is passed through a change of direction of 90 degrees and advanced further to a folding machine, at which projecting portions of the wrapper are folded against opposite ends of the bale. The thus-wrapped bale is then advanced to a second tying machine, at which the second wire is tied around the bale, at right angles to the first wire, in order to retain the wrap folds against the opposite ends of the bale.
It is a disadvantage of this prior bale wrapping apparatus that it causes the consumption of a substantial amount of stainless steel wire, which it is subsequently inconvenient for the end user to remove. Also, a punch used to secure the wrap to the bale will punch the wrapper itself and, thus, cause breakage of the wrapper, allowing contamination of the pulp in the bale.
In another type of conventional pulp bale wrapping apparatus, glue, instead of a wire, is employed to retain the wrap. More particularly, glue is applied to the wrapper, which is then folded and pressed against the sides of the bale, and the bale is then advanced to an end folder, where the ends are glued and then folded and pressed against the ends of the bale. The disadvantage of this apparatus is that the bale must remain stationary while the glue dries, which produces a bottleneck in the production process. Modern mills act at fast speeds and require correspondingly fast bale wrapping, and the mill operators are therefore reluctant to employ such a slow system.
DISCLOSURE OF THE INVENTION.
It is an object of the present invention to provide a novel and improved bale wrap retaining apparatus which enables a wrap to be retaining partially around a bale while the bale is advanced to an end folding machine.
According to the present invention, a bale wrap retaining apparatus has a track extending along a path of travel of a bale, a bale wrap retainer device, and a suspension movable along the track and suspending the bale wrap retainer device from the track, the suspension being operable to move the bale wrap retainer device between a raised position, in which the bale wrap retainer device is spaced upwardly from the bale, and a lowered position, in which the bale wrap retainer device is in gripping engagement with a wrapper on the bale.
With the present apparatus, only one length of wire is required to be tied around the bale in order to secure the wrap on the bale. Consequently, the first length of wire, which was required in conventional prior art machines to retain the partially wrapped cover sheet material on the bale, is no longer required. This saves not only the cost of this first length of wire and of tying it around the bale but also the cost to the end user of removing it from the bale.
BRIEF DESCRIPTION OF THE DRAWINGS.
The present invention will be more readily apparent from the following description of a preferred embodiment thereof given, by way of example, with reference to the accompanying drawings, in which:- Figure 1 shows a view in front elevation of a bale wrap retaining apparatus embodying the present invention;
Figure 2 shows a plan view of the apparatus of Figure 1;
Figure 3 shows a view in side elevation of the apparatus of Figures 1 and 2;
Figure 4 shows a broken-away view, in front elevation, of parts of the apparatus of Figure 1 ;
Figure 5 shows a side view, partly broken away, of parts of the apparatus of Figures 1 to 4; and
Figure 6 shows a plan view of a pulp bale wrapping apparatus in which the retaining apparatus of Figures 1 to 5 can be employed.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In Figure 1 of the accompanying the drawings, there is shown a bale wrap retaining apparatus which comprises a bale wrap retainer device indicated generally by reference numeral 10, which is illustrated in gripping engagement with a bale 12 and, more particularly, in contact with a cover sheet forming a wrapper 11 which is partially wrapped around the bale 12.
The bale wrap retainer device 10 comprises a support in the form of a transverse beam 14 which, at each of its opposite ends 15, carries a bale wrap retainer member indicated generally by reference numeral 16.
Each of the bale wrap retainer members 16 comprises an angle-shaped plate 18 which has outwardly curved edges 20 and which engages, as shown in Figure 1 , in snug engagement with an upper side corner 22 of the bale 12 so as to retain folded side portions 24 of the wrapper 1 1 against opposite sides 25 of the bale 12. Each of the angle-shaped plates 18 is suspended from a respective end 15 of the transverse beam 14 by a swing arm 26 which it is pivotally connected at its opposite ends to the transverse beam 14 and to the respective angle-shaped plate 18.
The transverse beam 14 is suspended beneath a track i the form of an I-beam 28 by means of a suspension indicated generally by reference numeral 30. This suspension 30 includes a pneumatically expansible and contractible bellows 32, which can be pneumatically inflated so as to move the transverse beam 14 downwardly from the I-beam 28 to a lowered position, and a pair of helical tension springs 34, which act as return springs biassing the transverse beam 14 upwardly towards the I-beam 28 into a raised position.
The bellows 32 and the springs 34 are connected to a carriage in the form of an upwardly open housing 36, which receives the I-beam 28, and which has rollers 38 in rolling the engagement with flanges of the I-beam 28 so as to support the bale wrap retainer device 10 for movement to and fro along the I-beam 28.
As can be seen from Figure 2, the transverse beam 14 is formed by a pair of elongate parallel plates 40, which are connected together by means of rods 42, and the swing arms
26 are pivotable about the rods 42. The swing arms 26 and, thereby, the bale wrap retainer members 16 are urged towards one another and, thus, towards of the opposite sides of the bale 12 by means of helical tension springs 44, which are connected between the swing arms 26 and bars 46 extending between the plates 40.
The manner in which the angle-shaped plates 18 are moved into engagement with the upper side corners 22 of the bale 12, as the transverse beam 14 is moved downwardly towards the bale 12, is illustrated in Figure 4.
As shown in Figure 4, when the transverse beam 14 is in its upper position, in which it is illustrated in unbroken lines, the angle-shaped plate 18 hangs from the beam 14 with its two sides 48 and 50 at an inclination to the horizontal. As the transverse beam 14 is lowered and lower side 48 of the plate comes into contact with the bale 12, the side 50 is pressed downwardly onto the top of the bale 12. Upon further downward movement, both sides of the angle-shaped plate 18 slide on the bale 12 or, more particularly, on the cover sheet wrapped around the bale 12, into the positions in which they are shown in chain-dot lines and in which the angle-shaped plate 18 is snugly engaged with the upper top corner 22 of the bale 12.
This movement of the angle-shaped plate 18 causes the swing arm 26 to pivot about the respective rod 42 in an anti-clockwise direction, as viewed in Figure 4, against the action of the respective spring 44.
Figure 6 shows a pulp bale wrapping apparatus or line which has a conventional wrap dispenser 45 at which the wrapper 11 is dispensed, in known manner, onto the bale 12 and folded against opposite sides of the bale 12 into the condition shown in Figure 1.
The wrap dispenser 45 is followed by a first tying machine 47 which is not employed when the present invention is in use but which may be provided as a back-up or for occasional special orders requiring first and second wrap retaining wires to be applied in the conventional manner as described above.
When the present apparatus is provided, the I-beam 28 extends from this first tying machine 45 to an end folder 49.
With the folds of the wrapper 11 held against the opposite sides of the bale 12 by the bale wrap retainer members 16 as described above, at the end of the I-beam 28 proximate the tying machine 47, the bale 12 is advanced along its path of travel, through to a bale spinner 51 , which remains unoperated, to the end folder 49, at which portions of the wrapper 11 projecting from opposite ends of the wrap are folded against the opposite ends of the bale. The bale wrap retainer device 10 is withdrawn from the bale 12 before the ends of the wrapper 11 are then folded against the bale 12. The bale wrap retainer device 10 is driven along the I-beam by its engagement with the bale 12. When released from the bale 12, the bale wrap retainer device is returned to its initial position by a drive which includes a prime mover in the form of an electric motor 52 mounted on the housing 36, a drive gear 54 on the shaft 55 of the motor 52 and a driven gear 56 meshing with the drive gear 54. The driven gear 56 is coaxial with a drive wheel 58 forming a drive member, the driven gear 56 and the drive wheel 58 being carried on one end of an arm 60, which is pivotable about the motor shaft 55 against the action of a helical tension spring 62 when the drive gear 54 is rotated by the electric motor 52. This pivotation brings the drive wheel into frictional driving engagement with the I-beam 28 so as to propel the bale wrap retainer device 10 along the I-beam 28.
The bale 12 is then advanced to a second tying machine 53, where a length of wire (not shown) is tied around the bale 12 to secure the wrapper 11 on the bale 12. Consequently, only one such wire is required for that purpose.
As will be apparent to those skilled in the art, various modifications may be made in the above-described invention within the scope of the appended claims.
For example, the present bale wrap retaining apparatus may be employed in bale wrapping lines in which glue, instead of wire, is used to retain the wrap. In this case, the present apparatus applies sideways pressure against the wrap at the opposite sides of the bale, while the glue dries and while the bale is advanced from the wrap dispenser 45 to allow a succeeding bale to be wrapped in the wrap dispenser 45, thus reducing the time required for the wrapping process. Also, the present apparatus allows the use of stronger, longer-lasting adhesive which will maintain better bale quality without slowing production.

Claims

1. A bale wrap retaining apparatus, characterized by a track (28) extending along a path of travel of a bale (12); a bale wrap retainer device (10); and a suspension (30) movable along the track (28) and suspending the bale wrap retainer device
(10) from the track (28); the suspension (30) being operable to move the bale wrap retainer device (10) between a raised position, in which the bale wrap retainer device (10) is spaced upwardly from the bale, and a lowered position, in which the bale wrap retainer device (10) is in gripping engagement with a wrapper ( 1 1 ) on the bale ( 12) .
2. A bale wrap retaining apparatus as claimed in claim 1, characterised in that the suspension (30) comprises helical tension springs (34) biassing the bale wrap retainer device (10) from the lowered position towards the raised position and bellows (32) which are expansible to displace the bale wrap retainer device (10) towards the lowered position against the action of the springs (34).
3. A bale wrap retaining apparatus as claimed in claim 1 , characterised in that the bale wrap retainer device (10) comprises a support (14) having opposite ends, a bale wrap retainer member (16) at each of the opposite ends of the support (14) and pivot connections (42) between the bale wrap retainer members (16) and the opposite ends of the support (14), the support (14) extending transversely of the track (28) and the bale wrap retainer members (16) comprising angle-shaped plates (18).
4. A bale wrap retaining apparatus as claimed in claim 3, including springs (44) urging, the bale wrap retainer members (16) about the pivot connections (42) towards on another.
5. A bale wrap retaining apparatus as claimed in claim 4, characterised in that the pivot connections (42) comprise carriage (36), the swing arms (26) having opposite ends pivotally connected to the retainer members (16) and to the opposite ends of the support.
6. A bale wrap retaining apparatus as claimed in claim 1, further comprising a carriage (36) mounted on the track (28), the carriage (36) having a drive member
(58) in driving engagement with the track (28), a prime mover (52) and drive connection (54 and 55) between the prime mover (52) and the drive member (58).
7. A bale wrap retaining apparatus as a claimed in claim 6, characterized in that the drive member (58) is a drive wheel (58), the drive including a pivotable arm (60) supporting the drive wheel (58) for rotation towards and from engagement with the track (28) and a spring (62) connected to the pivotable arm and urging the drive wheel (58) from engagement with the track (28), the drive connection comprising a drive gear (56) driven by the prime mover (52) and a driven gear (56) mounted for coaxial rotation with the drive member (58) and meshing with the drive wheel (56).
8. A bale wrap retaining apparatus, comprising a track (28) extending along a path of travel, a wrap retainer device (10) for gripping engagement with a wrap on a bale ( 12) and a suspension (30) suspending the wrap retainer device ( 10) from the track (28), the suspension (30) being moveable to and fro along the track (28) and the suspension (30) being operable to lower the wrap retainer device (10) onto the bale (12) to retain the wrap in position on the bale (12) during the advance of the bale (12) along the path of travel.
9. A bale wrap retaining apparatus as claimed in claim 8, characterised in that the wrap retainer device (10) comprise a pair of angular plates (18) spaced apart from one another and swingable means (26) carrying the angular plates (18) and allowing the angular plates (18) to slide into retaining engagement with the wrap at opposite edges of the bale (12) on lowering of the wrap retainer device (10).
10. A bale wrap retaining apparatus as claimed in claim 8, characterised in that the suspension (30) means includes spring means (34) biassing the wrap retainer device (10) upwardly towards a raised position and expansible displacement means (32) for moving the wrap retainer device (10) downwardly towards a lowered position against the action of the spring means (34).
1 1. A bale wrap retaining apparatus as claimed in claim 8, including a carriage (36) on the track (28), the carriage (36) carrying the suspension (30) means and the wrap retainer device (10), and drive means on the carriage (36) for driving the carriage (36) along the track (28).
12. A bale wrap retaining apparatus as claimed in claim 11 , characterised in that the drive means includes a drive roller (58) moveable into and out of driving engagement with the track (28).
13. A bale wrap machine comprising, in succession along a path of travel, a wrapper dispensing machine (45), an end folder (49) and a bale tying machine (53), and a bale wrap retaining apparatus (Fig. 1 ) between the wrapper dispensing machine (45) and the end folder (49), the bale wrap retaining apparatus comprising a track (28) extending along a path of travel of a bale (10), a bale wrap retainer device
(10) and a suspension (30) movable along the track (28) and suspending the bale wrap retainer device (10) from the track (28).
14. A bale wrap retaining apparatus as claimed in claim 13, characterized in that the suspension (30) comprises helical tension springs (34) biassing the bale wrap retainer device (10) from a lowered position towards a raised position and bellows (32) which are expansible to displace the bale wrap retainer device (10) towards the lowered position against the action of the springs (34).
15. A bale wrap retaining apparatus as claimed in claim 13 , characterised in that the bale wrap retainer device (10) comprises a support (14) having opposite ends, a bale wrap retainer member (16) at each of the opposite ends of the support (14) and pivot connections (42) between the bale wrap retainer members (16) and the opposite ends of the support, the support (14) extending transversely of the track (28) and the bale wrap retainer members (16) comprising angle-shaped plates (18).
16. A bale wrap retaining apparatus as claimed in claim 15, characterised in that the pivot connectors comprise swing arms (26), the swing arms (26) having opposite ends pivotally connected to bale wrap retainer members (16) and the opposite ends of the support (14).
17. A method of wrapping a bale, which comprises the steps of dispensing a wrapper ( 1 1 ) to form a wrap around the bale, moving a wrap retainer (10) into engagement with the wrap (11) to retain the wrap (11) in position on the bale (12), advancing the bale (12) together with the wrap retainer (10) along a path of travel while maintaining the wrap retainer (10) in retaining engagement with the wrap (11), folding the wrap (11) at opposite ends of the bale (12) and subsequently tying the wrap (11) to the bale (12).
18. A method as claimed in claim 14, which includes suspending the wrap retainer from a track (28) extending along the path of travel of the bale (12) and driving the wrap retainer along the track (28).
19. A method as claimed in claim 14, which includes lowering and raising the wrap retainer (10) into and out of retaining engagement with the wrap (11) on the bale. (12).
20. A method as claimed in claim 14, which includes swingably suspending a pair of angular bale wrap retainer plates (18) and lowering the wrap retainer (10) towards the bale (12) so as to slidably engage the angular bale wrap retainer plates (18) with the wrap (11) at opposite edges of the bale (12).
1. A method as claimed in claim 17, which includes resiliently biassing the angular bale wrap retainer plates (18) towards one another.
PCT/CA1999/000756 1998-08-20 1999-08-17 Bale wrap retaining apparatus Ceased WO2000010875A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU52749/99A AU5274999A (en) 1998-08-20 1999-08-17 Bale wrap retaining apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13697898A 1998-08-20 1998-08-20
US09/136,978 1998-08-20

Publications (1)

Publication Number Publication Date
WO2000010875A1 true WO2000010875A1 (en) 2000-03-02

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ID=22475295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1999/000756 Ceased WO2000010875A1 (en) 1998-08-20 1999-08-17 Bale wrap retaining apparatus

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WO (1) WO2000010875A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803027A (en) * 2015-04-16 2015-07-29 湖州旭彩高新纤维有限公司 Efficient automatic fiber packaging device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327452A (en) * 1964-05-21 1967-06-27 Devco Inc Folding machine for two piece wrapper
US3792563A (en) * 1972-05-16 1974-02-19 Dowall F Mc Paper pulp baling method and apparatus
EP0075162A1 (en) * 1981-09-19 1983-03-30 Gerold Fleissner Baling press for fibrous materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327452A (en) * 1964-05-21 1967-06-27 Devco Inc Folding machine for two piece wrapper
US3792563A (en) * 1972-05-16 1974-02-19 Dowall F Mc Paper pulp baling method and apparatus
EP0075162A1 (en) * 1981-09-19 1983-03-30 Gerold Fleissner Baling press for fibrous materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104803027A (en) * 2015-04-16 2015-07-29 湖州旭彩高新纤维有限公司 Efficient automatic fiber packaging device

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Publication number Publication date
AU5274999A (en) 2000-03-14

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