CA1156133A - Band straightener - Google Patents
Band straightenerInfo
- Publication number
- CA1156133A CA1156133A CA000355763A CA355763A CA1156133A CA 1156133 A CA1156133 A CA 1156133A CA 000355763 A CA000355763 A CA 000355763A CA 355763 A CA355763 A CA 355763A CA 1156133 A CA1156133 A CA 1156133A
- Authority
- CA
- Canada
- Prior art keywords
- machine
- rollers
- chassis
- compressor
- roller
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A machine for straightening metal bands comprising drivable rollers defining one edge of a pathway; a com-pressor roller defining a second edge of the pathway opposed to the first edge; and means to move the compressor roller towards and away from the first edge of the pathway.
A machine for straightening metal bands comprising drivable rollers defining one edge of a pathway; a com-pressor roller defining a second edge of the pathway opposed to the first edge; and means to move the compressor roller towards and away from the first edge of the pathway.
Description
11~61~3 This invention relates to a machine for straigth-ening metal bands, particularly the metal bands used for packaging logs and, in a particular aspect, in the straighten-ing of metal bands useful in the bundling of logs.
For transportation, logs are frequently bundled together using strong metal straps, the free ends of which are crimped together in order to hold the logs in the bundle. A similar system is used with domestic lumber but, generally speaking, the bands used in those circumstances are smaller both in width and thickness.
When it come to break the log bundle the bands are preferably cut, for example by shears, but are frequently broken simply by bouncing the bundle up and down with a hook of a crane engaged in the bands. Particularly this latter process severely distorts the bands which are then rejected.
The removal of the used bands is a considerable problem.
There have been simply dumped in water, for example in lakes or in the sea, and they have also been used in landfill. It will be appreciated that a large mill produces a consider-able amount of scrap metal in this way.
The present invention seeks to provide an appara-tus in which the bands may be straightened and in which, at least in a preferred embodiment, a means of cutting out the unstraightenable portions is provided on the machine. The device is able to handle all sizes of metal bands used in ~' 11561~3 the lumber and forest industry and yet is small and easy to use.
Accordingly, in a first aspect the present inven-tion is a machine for straightening metal bands comprising drivable rollers defining one edge of a pathway; a com~
pressor roller defining a second edge of the pathway opposed to the first edge; a feed roller to feed straightened bands away from the position between the driven rollers and the compressor roller, and means to move the compressor roller towards and away from the first edge of the pathway.
In a more specific aspect the present invention is a machine for straightening metal bands comprising a first chassis; a motor mounted on the chassis; a plurality of first rollers driven by the motor; a second chassis pivot-ably attached to the first chassis; at least one compressorroller rotatably mounted on the second chassis to move from a release position, remote from the first rollers, to a compressor position aligned with a space between adjacent first rollers; releasable retaining means to retain the compressor roller in the compressor position.
It is preferable that the motor be an electric motor for general purposes but, where a supply of electri-city is not available, an internal combustion engine can be used. Preferably the motor drives the rollers through a gear box.
The accompanying drawings illustrate one embodi-ment of a machine according to the present invention. In 115~1~3 the drawings:
Figure 1 is a side view of a machine according to the present invention;
Figure 2 is a plan view of the machine of Figure 5 1;
Figure 3 is an end view of the machine of Figure l;
Figure 4 is a detail of the machine of Figure 1.
Figure 1 illustrates a machine comprising a first 10 chassis made up of upstanding members 2 and longitu-dinal members 4. Channel members 6 and 8 define a path for metal bands to be straightened on the machine. There is a motor 10 mounted on the bottom longitudinal member 4. The motor 10 drives through a gear box 12 having an output shaft 14 (Figure 3) on which is a sprocket 16. A chain 18 from sprocket 16 drives a first drivable roller 20 by means of teeth formed on a shaft 22 of the roller 20. Similar teeth 24 on a sprocket 26 on the other end of the roller 20 engage a chain 28. That chain 28 then drives a second drivable 20 roller 30 through a similar arrangement of teeth 24' on a sprocket 26' and a third roller 31 through teeth 24" on a sprocket 26".
There is a second chassis 32 pivotally mounted to the first chassis at 34. The second chassis 32 comprises 25 longitudinal members 36 defining the sides of the second c~hassis 32 and end members 37. Bearing blocks 38 carry a 11561~3 first compressor roller 40 rotatable in the bearing blocks 38. There is also a feed and second compressor roller 42 to feed the straightened band away from the drivable rollers 20 and 30. The direction of movement of the band through the machine is from left to right in Figures 1 and 2. That is the band to be straightened is fed in at the left and emerges, straightened, at the right.
The second chassis 32 is pivotable from a release position, shown in broken lines in Figure 1, to a compressor or useful position in which it is shown in solid lines in Figure 1. There are upstanding members 44 attached to each side of the channel section 6. Stops 46 are formed on the sides of the upstanding members 44. There is a lug 48 (shown in Figure 4) extending from one end member 37 of the second chassis 32. A first link 50 is pivotally attached to the lug 48. A second link 52 is pivotally attached to the first link 50. That second link 52 can pivot around a cross shaft S4 extending between the upstanding members 44. There is a handle 56 so that the links 50 and 52 may be moved from the locked position, shown in broken lines in Figure 4, to the release position shown in solid lines in Figure 4. The necessary downward pressure is applied by hand to pivot the joint between the first and second links 50 and 52.
There are springs 58 (Figure 1) attached to struts 1~56133 60 attached at each side of the channel sections 36. These springs 58 are anchored to a longitudinal member 4 at 59 so that when the handle 56 is moved to the release position (shown in Figure 4 in solid line) the springs 58 move the second chassis 32 upwardly to the release position 59 may be movable along members 4 to vary the tension in spring 58.
As illustrated the machine is provided with wheels 61 on the ups~anding members 2 at one end of the chassis so that it may be moved around easily.
The machine is desirably adapted to provide a mounting for a shear. One embodiment of which is shown in Figures 1 and 2. The attachment means comprises a tubular member 62 welded to an upstanding member 2. There is a threaded hole in the tube which is engaged by a bolt 64.
The bolt thus fixes the position of a rod 66. A further rod 68 then is attached to a mounting plate 70 of the shear 72.
A supply of, usually, air to the shear 72 provides an extremely rapid cutting apparatus whereby irrevocably twisted pieces of band can be cut from the band prior to straightening of the recoverable band.
A means of providing slight variation in the position or level of the rolls 40 and 42 in the second chassis 32 is provided. Plates 74 extend downwardly from longitudinal members 36 of the second chassis 32. Bolts and 1 156 1~3 nuts extend through holes in the upstanding members 2 of the first chassis to engage in slots 76 in the plates 74. By use of the slots the rolls 40 and 42 can be tilted or levelled before the bolts are tightened. The rolls can then accommodate distorted material with the rolls tilted or good adjustment of the level position can be achieved.
Feed roller 42 is mounted on a pivotable arm 78, to pivot about 34 on chassis member 36. Bar 80 is welded between member 36. A U-bracket 82 extends upwardly from roller 42. Bolt 84 extends through bar 80 and, by being screwed down, increases the pressure of roller 42 down-wardly. Pressure is reduced by screwing bolt 84 upwardly.
In use the bands to be recovered are stored at a convenient place and are then fed through the machine at the left of the machine in Figure 1. They may be supported on the channel section 6. The shear 72 is used by the operator to cut parts that he considers to be irrevocable. The machine is started with the second chassis 32 in the raised position. When the band is fed through the handle 56 is moved downwardly so that the second chassis 32 is in the lowered position as shown in solid lines in Figure 1. The band is then passed along a pathway one edge of which is defined by the drivable rollers 20, 30 and 31 the other by the rollers 40 and 42. The electric motor 10 drives the rollers 20, 30 and 31 through the gear box 12 and the chains 115~1~3 18 and 28. The straightened band emerges at the right of the machine from the channel section 8.
Once the band has been straightened a simple crimped joint can be used, if required, to join pieces to put together a band of the requisite length for use in banding logs or lumber. It has been found that generally speaking a length of band may be used four times which represents an extremely valuable saving to the industry as well as obviating the problem of dumping. It is possible that a link may be used far more than four times but this has been found to be a general figure bearing in mind the rough handling these metal bands traditionally receive.
For transportation, logs are frequently bundled together using strong metal straps, the free ends of which are crimped together in order to hold the logs in the bundle. A similar system is used with domestic lumber but, generally speaking, the bands used in those circumstances are smaller both in width and thickness.
When it come to break the log bundle the bands are preferably cut, for example by shears, but are frequently broken simply by bouncing the bundle up and down with a hook of a crane engaged in the bands. Particularly this latter process severely distorts the bands which are then rejected.
The removal of the used bands is a considerable problem.
There have been simply dumped in water, for example in lakes or in the sea, and they have also been used in landfill. It will be appreciated that a large mill produces a consider-able amount of scrap metal in this way.
The present invention seeks to provide an appara-tus in which the bands may be straightened and in which, at least in a preferred embodiment, a means of cutting out the unstraightenable portions is provided on the machine. The device is able to handle all sizes of metal bands used in ~' 11561~3 the lumber and forest industry and yet is small and easy to use.
Accordingly, in a first aspect the present inven-tion is a machine for straightening metal bands comprising drivable rollers defining one edge of a pathway; a com~
pressor roller defining a second edge of the pathway opposed to the first edge; a feed roller to feed straightened bands away from the position between the driven rollers and the compressor roller, and means to move the compressor roller towards and away from the first edge of the pathway.
In a more specific aspect the present invention is a machine for straightening metal bands comprising a first chassis; a motor mounted on the chassis; a plurality of first rollers driven by the motor; a second chassis pivot-ably attached to the first chassis; at least one compressorroller rotatably mounted on the second chassis to move from a release position, remote from the first rollers, to a compressor position aligned with a space between adjacent first rollers; releasable retaining means to retain the compressor roller in the compressor position.
It is preferable that the motor be an electric motor for general purposes but, where a supply of electri-city is not available, an internal combustion engine can be used. Preferably the motor drives the rollers through a gear box.
The accompanying drawings illustrate one embodi-ment of a machine according to the present invention. In 115~1~3 the drawings:
Figure 1 is a side view of a machine according to the present invention;
Figure 2 is a plan view of the machine of Figure 5 1;
Figure 3 is an end view of the machine of Figure l;
Figure 4 is a detail of the machine of Figure 1.
Figure 1 illustrates a machine comprising a first 10 chassis made up of upstanding members 2 and longitu-dinal members 4. Channel members 6 and 8 define a path for metal bands to be straightened on the machine. There is a motor 10 mounted on the bottom longitudinal member 4. The motor 10 drives through a gear box 12 having an output shaft 14 (Figure 3) on which is a sprocket 16. A chain 18 from sprocket 16 drives a first drivable roller 20 by means of teeth formed on a shaft 22 of the roller 20. Similar teeth 24 on a sprocket 26 on the other end of the roller 20 engage a chain 28. That chain 28 then drives a second drivable 20 roller 30 through a similar arrangement of teeth 24' on a sprocket 26' and a third roller 31 through teeth 24" on a sprocket 26".
There is a second chassis 32 pivotally mounted to the first chassis at 34. The second chassis 32 comprises 25 longitudinal members 36 defining the sides of the second c~hassis 32 and end members 37. Bearing blocks 38 carry a 11561~3 first compressor roller 40 rotatable in the bearing blocks 38. There is also a feed and second compressor roller 42 to feed the straightened band away from the drivable rollers 20 and 30. The direction of movement of the band through the machine is from left to right in Figures 1 and 2. That is the band to be straightened is fed in at the left and emerges, straightened, at the right.
The second chassis 32 is pivotable from a release position, shown in broken lines in Figure 1, to a compressor or useful position in which it is shown in solid lines in Figure 1. There are upstanding members 44 attached to each side of the channel section 6. Stops 46 are formed on the sides of the upstanding members 44. There is a lug 48 (shown in Figure 4) extending from one end member 37 of the second chassis 32. A first link 50 is pivotally attached to the lug 48. A second link 52 is pivotally attached to the first link 50. That second link 52 can pivot around a cross shaft S4 extending between the upstanding members 44. There is a handle 56 so that the links 50 and 52 may be moved from the locked position, shown in broken lines in Figure 4, to the release position shown in solid lines in Figure 4. The necessary downward pressure is applied by hand to pivot the joint between the first and second links 50 and 52.
There are springs 58 (Figure 1) attached to struts 1~56133 60 attached at each side of the channel sections 36. These springs 58 are anchored to a longitudinal member 4 at 59 so that when the handle 56 is moved to the release position (shown in Figure 4 in solid line) the springs 58 move the second chassis 32 upwardly to the release position 59 may be movable along members 4 to vary the tension in spring 58.
As illustrated the machine is provided with wheels 61 on the ups~anding members 2 at one end of the chassis so that it may be moved around easily.
The machine is desirably adapted to provide a mounting for a shear. One embodiment of which is shown in Figures 1 and 2. The attachment means comprises a tubular member 62 welded to an upstanding member 2. There is a threaded hole in the tube which is engaged by a bolt 64.
The bolt thus fixes the position of a rod 66. A further rod 68 then is attached to a mounting plate 70 of the shear 72.
A supply of, usually, air to the shear 72 provides an extremely rapid cutting apparatus whereby irrevocably twisted pieces of band can be cut from the band prior to straightening of the recoverable band.
A means of providing slight variation in the position or level of the rolls 40 and 42 in the second chassis 32 is provided. Plates 74 extend downwardly from longitudinal members 36 of the second chassis 32. Bolts and 1 156 1~3 nuts extend through holes in the upstanding members 2 of the first chassis to engage in slots 76 in the plates 74. By use of the slots the rolls 40 and 42 can be tilted or levelled before the bolts are tightened. The rolls can then accommodate distorted material with the rolls tilted or good adjustment of the level position can be achieved.
Feed roller 42 is mounted on a pivotable arm 78, to pivot about 34 on chassis member 36. Bar 80 is welded between member 36. A U-bracket 82 extends upwardly from roller 42. Bolt 84 extends through bar 80 and, by being screwed down, increases the pressure of roller 42 down-wardly. Pressure is reduced by screwing bolt 84 upwardly.
In use the bands to be recovered are stored at a convenient place and are then fed through the machine at the left of the machine in Figure 1. They may be supported on the channel section 6. The shear 72 is used by the operator to cut parts that he considers to be irrevocable. The machine is started with the second chassis 32 in the raised position. When the band is fed through the handle 56 is moved downwardly so that the second chassis 32 is in the lowered position as shown in solid lines in Figure 1. The band is then passed along a pathway one edge of which is defined by the drivable rollers 20, 30 and 31 the other by the rollers 40 and 42. The electric motor 10 drives the rollers 20, 30 and 31 through the gear box 12 and the chains 115~1~3 18 and 28. The straightened band emerges at the right of the machine from the channel section 8.
Once the band has been straightened a simple crimped joint can be used, if required, to join pieces to put together a band of the requisite length for use in banding logs or lumber. It has been found that generally speaking a length of band may be used four times which represents an extremely valuable saving to the industry as well as obviating the problem of dumping. It is possible that a link may be used far more than four times but this has been found to be a general figure bearing in mind the rough handling these metal bands traditionally receive.
Claims (9)
1. A machine for straightening metal bands comprising:
drivable rollers defining one edge of a pathway;
a compressor roller defining a second edge of the pathway opposed to the first edge;
a feed roller to feed straightened bands away from the position between the driven rollers and the compressor roller, and means to move the compressor roller towards and away from the first edge of the pathway.
drivable rollers defining one edge of a pathway;
a compressor roller defining a second edge of the pathway opposed to the first edge;
a feed roller to feed straightened bands away from the position between the driven rollers and the compressor roller, and means to move the compressor roller towards and away from the first edge of the pathway.
2. A machine for straightening metal bands comprising a first chassis;
a motor mounted on the chassis;
a plurality of first rollers driven by the motor;
a second chassis pivotably attached to the first chassis;
at least one compressor roller rotatably mounted on the second chassis to move from a release position, remote from the first rollers, to a compressor position aligned with a space between adjacent first rollers;
releasable retaining means to retain the com-pressor roller in the compressor position.
a motor mounted on the chassis;
a plurality of first rollers driven by the motor;
a second chassis pivotably attached to the first chassis;
at least one compressor roller rotatably mounted on the second chassis to move from a release position, remote from the first rollers, to a compressor position aligned with a space between adjacent first rollers;
releasable retaining means to retain the com-pressor roller in the compressor position.
3. A machine as claimed in claim 2 in which the motor drives the rollers through a gear box.
4. A machine as claimed in claim 2 in which there are three first rollers and two compressor rollers.
5. A machine as claimed in claim 4 in which one compressor roller also acts as a feed roller to move straight-ened bands from the space between adjacent rollers.
6. A machine as claimed in claim 2 including means to move the second chassis to the release position when the retaining means are released.
7. A machine as claimed in claim 6 in which the means to move the second chassis to the release position comprises at least one spring.
8. A machine as claimed in claim 2 including mounting means for a shear attached to one end of the machine.
9. A machine as claimed in claim 2 including means defining a pathway to the first rollers and means defining a pathway away from the first rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000355763A CA1156133A (en) | 1980-07-09 | 1980-07-09 | Band straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000355763A CA1156133A (en) | 1980-07-09 | 1980-07-09 | Band straightener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1156133A true CA1156133A (en) | 1983-11-01 |
Family
ID=4117379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000355763A Expired CA1156133A (en) | 1980-07-09 | 1980-07-09 | Band straightener |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1156133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995541A (en) * | 1988-08-04 | 1991-02-26 | Maschinenfabrik Andritz Actiengesellschaft | Set of guide rolls for guiding, positioning and controlling motion of bands of material fed through the rolls |
-
1980
- 1980-07-09 CA CA000355763A patent/CA1156133A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4995541A (en) * | 1988-08-04 | 1991-02-26 | Maschinenfabrik Andritz Actiengesellschaft | Set of guide rolls for guiding, positioning and controlling motion of bands of material fed through the rolls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |