CA2016788C - Extrusion puller mounting - Google Patents
Extrusion puller mounting Download PDFInfo
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- CA2016788C CA2016788C CA 2016788 CA2016788A CA2016788C CA 2016788 C CA2016788 C CA 2016788C CA 2016788 CA2016788 CA 2016788 CA 2016788 A CA2016788 A CA 2016788A CA 2016788 C CA2016788 C CA 2016788C
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- Prior art keywords
- extrusion
- rollers
- guide
- pulling apparatus
- guide means
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
An extrusion pulling apparatus wherein an extrusion pulley is guided from above and below for movement along an extrusion line from an extrusion press.
The upper guide comprises a T-shaped beam with rollers mounted on the pulley for rolling along vertical surfaces of the beam. The lower guide is formed from a multi-face beam, for example, a hexagonal beam, wherein rollers mounted on the pulley roll on guide face surfaces which have an included angle between them of about 60°. The upper and lower guides can be reversed.
The upper guide comprises a T-shaped beam with rollers mounted on the pulley for rolling along vertical surfaces of the beam. The lower guide is formed from a multi-face beam, for example, a hexagonal beam, wherein rollers mounted on the pulley roll on guide face surfaces which have an included angle between them of about 60°. The upper and lower guides can be reversed.
Description
_1_ i~~~~i'~
EXTRU8T0N PU~hER MOUNTING
TeChriiasl Field The invention relates to extrusion pulling apparatus and, more particularly, to an extrusion pulling apparatus mounted on a multifaceted guide beam through rollers.
Background of the Inyention It is well known for extrusion pulling apparatus to incorporate guide means for tracking the to extrusion pulling jaws along the extrusion pulling axis.
Further, the guide means typically incorporate a plurality of rollers for movement of the extrusion pulling apparatus along the guide means. Typically, the rollers and guide means are mounted either below, or above the extrusion pulling apparatus and provide the sole means for stability and support for the extrusion pulling apparatus.
The U.S. Pat. No. 3,881,339 to Mannell (issued May 6, 1975) discloses an extrusion pullet comprising an elongated rectangular rail with a carriage moveable along said rail on several sets of rollers. The rollers roll on the rectangular rail on the top, bottom and side surfaces for guiding the extrusion pullet along the extrusion axis.
The U.S. Pat. No. 4,079,616 to Zazimko, et a1.
(issued March 21, 1978) discloses a draw bench for producing cylindrical tubular items. A roller mounted carriage is mounted on a set of rollers to traverse the drawing axis.
An extrusion pulling apparatus with the guide means mounted above the extrusion pullet is disclosed in U.S. Pat. No. 4,628,719 to Best (issued December 16, 1986). The guide means are essentially an inverted W-shape cross-section wherein the rollers of the extrusion pullet are inserted into the bight portions of the inverted W-shaped guide means and supported on an inward extending flange. Rollers are incorporated on the extrusion pullet for tracking along the flanges.
Another example of an upper mounted guide means is found in U.S. Pat. No. 3,585,833 to Carraher et al. (issued June 22, 1971). A pair of I-shaped beams are mounted such that rollers of the extrusion puffer are supported by the flanges of the I-shaped beam.
Other patents which disclose the use of a roller and guide means construction similar to those previously discussed include U.S. Pat. No. 4,313,329 to Caswall, J. R. et al. (issued February 2, 1982); U.S. Pat. No. 4,507,950 to Elhaus (issued April 2, 1985);
and U.S. Pat. No. 3,580,183 to Nearman (issued May 25, 1971).
It is also known in the prior art to utilize an I-beam as the guide means for the extrusion pulling apparatus. Rollers are mounted for rolling contact on a horizontal face of the I-beam and provide support for the extrusion pulling apparatus. In addition, rollers are mounted on the underside of the flanges of the I-beam to provide stability and tracking for the extrusion puffer.
It is important to construct an extrusion puffer which is extremely stable to avoid irregularities in the extruded/pulled material. A common source for such irregularities is a slip or studder in the extrusion puffer apparatus. Therefore, an apparatus which decreases the frequency of slips or studders in the extrusion puffer will increase the productivity of the extrusion pulling apparatus.
In accordance' with the invention there is provided, in an extrusion pulling apparatus comprising an extrusion puffer which is guided by a lower guide beneath said puffer and guided by an upper guide above the pull~~r for movement along a line from an extrusion press, wherein slippage of said puffer with respect to the upper or lower guides results in undesirable irregularities in the work, the improvement comprisi~ag; one of the upper and lower guides comprises a mufti-faced beam with at least three guide face surfaces oriented approximately 60° apart; said one upper or lower guides has at least three first ro:Llers which are aligned to roll on three guide face surfaces of the mufti-faced beams for accurate extrusion pulling wherein at if=ast one of said three first rollers is adjustable to accurately a7.ign the roller to the guide surface of said mufti-faced beam; said mufti-faced beam supports the puffer through at least one of the>, three rollers the other of the upper and lower guides has a lateral stabilizing guide surface; and said puller has at least two second rollers, one of which rolls on each side of the lateral stabilizing guide surfaces.
SUt~IARY OF THE INVENTION
According to the invention, an extrusion pulley apparatus has a lower guide means mounted beneath the pulley and an upper guide means mounted above the pulley for movement of the pulley along a line from an extrusion press. One of the guide means comprises a multi-face beam with at least three guide face surfaces oriented approximately 60° apart and at least three rollers which roll on the three guide face surfaces. The multi-face beam supports the pulley through at least one of the three rollers, the other rollers providing stability for the pulley.
Preferably, one of the upper and lower guide means comprises a hexagonal beam and the lateral stabilizing guide surfaces of the other guide means are vertical.
An extrusion pulley mounting which supplies a great amount of support and stability is created when the hexagonal beam comprises the lower guide means and a T-shaped beam comprises the upper guide means. The T-shaped beam incorporates vertical surfaces as the lateral stabilizing guide surfaces. Further, the rollers which roll on the three guide face surfaces of the hexagonal beam are mounted on axes which are spaced approximately 60° from each other. The rollers for the upper guide means, or T-shaped beam, have axes parallel to each other.
The new appa~°atus provides more stability and support for the extrusion pulley apparatus than is found in the prior art.
Therefore, fewer defects will be found in the extruded material and , a greater productivity will be achieved with the apparatus.
Embodiments of the invention will now be described in detail with reference to the accompanying drawings wherein: FIG. 1 is a perspective view of an extrusion pulling apparatus; FIG. 2 is a partial sectional 'view along lines 2-2 of FIG. l; FIG. 3 is a partial side view of the extrusion pulley mounting along lines 3-3 of the FIG. 2; FIG. 4 is a partial enlarged view of the lower guide means seen in FIG. 2; FIG. 5 is a partial enlarged side view of the lower guide means seen in FIG. 3; FIG. 6 is a partial sectional view along lines 6-6 of FIG. 3; and FIG. 7 is a partial enlarged view of the upper guide means as seen along lines 7-7 of FIG. 6.
EXTRU8T0N PU~hER MOUNTING
TeChriiasl Field The invention relates to extrusion pulling apparatus and, more particularly, to an extrusion pulling apparatus mounted on a multifaceted guide beam through rollers.
Background of the Inyention It is well known for extrusion pulling apparatus to incorporate guide means for tracking the to extrusion pulling jaws along the extrusion pulling axis.
Further, the guide means typically incorporate a plurality of rollers for movement of the extrusion pulling apparatus along the guide means. Typically, the rollers and guide means are mounted either below, or above the extrusion pulling apparatus and provide the sole means for stability and support for the extrusion pulling apparatus.
The U.S. Pat. No. 3,881,339 to Mannell (issued May 6, 1975) discloses an extrusion pullet comprising an elongated rectangular rail with a carriage moveable along said rail on several sets of rollers. The rollers roll on the rectangular rail on the top, bottom and side surfaces for guiding the extrusion pullet along the extrusion axis.
The U.S. Pat. No. 4,079,616 to Zazimko, et a1.
(issued March 21, 1978) discloses a draw bench for producing cylindrical tubular items. A roller mounted carriage is mounted on a set of rollers to traverse the drawing axis.
An extrusion pulling apparatus with the guide means mounted above the extrusion pullet is disclosed in U.S. Pat. No. 4,628,719 to Best (issued December 16, 1986). The guide means are essentially an inverted W-shape cross-section wherein the rollers of the extrusion pullet are inserted into the bight portions of the inverted W-shaped guide means and supported on an inward extending flange. Rollers are incorporated on the extrusion pullet for tracking along the flanges.
Another example of an upper mounted guide means is found in U.S. Pat. No. 3,585,833 to Carraher et al. (issued June 22, 1971). A pair of I-shaped beams are mounted such that rollers of the extrusion puffer are supported by the flanges of the I-shaped beam.
Other patents which disclose the use of a roller and guide means construction similar to those previously discussed include U.S. Pat. No. 4,313,329 to Caswall, J. R. et al. (issued February 2, 1982); U.S. Pat. No. 4,507,950 to Elhaus (issued April 2, 1985);
and U.S. Pat. No. 3,580,183 to Nearman (issued May 25, 1971).
It is also known in the prior art to utilize an I-beam as the guide means for the extrusion pulling apparatus. Rollers are mounted for rolling contact on a horizontal face of the I-beam and provide support for the extrusion pulling apparatus. In addition, rollers are mounted on the underside of the flanges of the I-beam to provide stability and tracking for the extrusion puffer.
It is important to construct an extrusion puffer which is extremely stable to avoid irregularities in the extruded/pulled material. A common source for such irregularities is a slip or studder in the extrusion puffer apparatus. Therefore, an apparatus which decreases the frequency of slips or studders in the extrusion puffer will increase the productivity of the extrusion pulling apparatus.
In accordance' with the invention there is provided, in an extrusion pulling apparatus comprising an extrusion puffer which is guided by a lower guide beneath said puffer and guided by an upper guide above the pull~~r for movement along a line from an extrusion press, wherein slippage of said puffer with respect to the upper or lower guides results in undesirable irregularities in the work, the improvement comprisi~ag; one of the upper and lower guides comprises a mufti-faced beam with at least three guide face surfaces oriented approximately 60° apart; said one upper or lower guides has at least three first ro:Llers which are aligned to roll on three guide face surfaces of the mufti-faced beams for accurate extrusion pulling wherein at if=ast one of said three first rollers is adjustable to accurately a7.ign the roller to the guide surface of said mufti-faced beam; said mufti-faced beam supports the puffer through at least one of the>, three rollers the other of the upper and lower guides has a lateral stabilizing guide surface; and said puller has at least two second rollers, one of which rolls on each side of the lateral stabilizing guide surfaces.
SUt~IARY OF THE INVENTION
According to the invention, an extrusion pulley apparatus has a lower guide means mounted beneath the pulley and an upper guide means mounted above the pulley for movement of the pulley along a line from an extrusion press. One of the guide means comprises a multi-face beam with at least three guide face surfaces oriented approximately 60° apart and at least three rollers which roll on the three guide face surfaces. The multi-face beam supports the pulley through at least one of the three rollers, the other rollers providing stability for the pulley.
Preferably, one of the upper and lower guide means comprises a hexagonal beam and the lateral stabilizing guide surfaces of the other guide means are vertical.
An extrusion pulley mounting which supplies a great amount of support and stability is created when the hexagonal beam comprises the lower guide means and a T-shaped beam comprises the upper guide means. The T-shaped beam incorporates vertical surfaces as the lateral stabilizing guide surfaces. Further, the rollers which roll on the three guide face surfaces of the hexagonal beam are mounted on axes which are spaced approximately 60° from each other. The rollers for the upper guide means, or T-shaped beam, have axes parallel to each other.
The new appa~°atus provides more stability and support for the extrusion pulley apparatus than is found in the prior art.
Therefore, fewer defects will be found in the extruded material and , a greater productivity will be achieved with the apparatus.
Embodiments of the invention will now be described in detail with reference to the accompanying drawings wherein: FIG. 1 is a perspective view of an extrusion pulling apparatus; FIG. 2 is a partial sectional 'view along lines 2-2 of FIG. l; FIG. 3 is a partial side view of the extrusion pulley mounting along lines 3-3 of the FIG. 2; FIG. 4 is a partial enlarged view of the lower guide means seen in FIG. 2; FIG. 5 is a partial enlarged side view of the lower guide means seen in FIG. 3; FIG. 6 is a partial sectional view along lines 6-6 of FIG. 3; and FIG. 7 is a partial enlarged view of the upper guide means as seen along lines 7-7 of FIG. 6.
4- i~~~.~~~~~'i~y DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, an extrusion pullet 14 is mounted on a lower guide means 26 and an upper guide means 28 for movement along a run out table 16 from an extrusion press 12. It is well known in the art to construct a pulling apparatus wherein the material to be pulled 18 is forced through the extrusion press 12 and gripped by the extrusion pullet 14. The extrusion pullet 14 is driven away from the extrusion press 12 along the extrusion axis A by a suitable drive means which may include a chain (not shown) beneath the run-out table 16 (not shown) and a chain connector 20. After the extrusion is completed, the extruded material 18 is moved to a cooling table 17 for further processing by a belt conveyor 19.
As seen in FIG. 2, the extrusion pullet 14 is guided along the pulling axis A by an extrusion pullet mounting 22. The extrusion pullet mounting 22 of the invention is guided by an upper guide means 24 and a lower guide means 26. These guide means help to provide support and linear accuracy in the extrusion pracess.
The extrusion pullet mounting 22 comprises a ' rectangular support frame 28 which is mounted between the upper guide means 24 and the lower guide means 26.
Fixedly attached to the rectangular frame 28 is a suitable mounting structure 30 for a pair of extrusion pullet jaws, an upper jaw 32 and a lower jaw 34. The pullet jaw mounting structure 30 is arranged such that the pullet jaws 32, 34 are above and adjacent to the run out table 16. On the opposite side of the rectangular frame 28 from the mounting structure 30 and pullet jaws 32, 34 is a C-shaped support frame 36. The C-shaped support frame 36 provides support for the rectangular support frame 28 along the extrusion axis A through the upper and lower guide means 24, 26.
The lower guide means 26 comprises a hexagonal beam 42, and a plurality of rollers 44. The rollers 44 are typically constructed of steel. The hexagonal beam a~~~~~~~~i 42 may be constructed of steel and is typically rolled to close tolerances to provide accurate and studder-free extrusion pulling.
The hexagonal beam 42 extends parallel to the extrusion axis A and is supported by a suitable support means 46. In the preferred embodiment the support means 46 comprises a conventional I-beam 48 and a narrow width rectangular beam 50. The I-beam 48 is attached to the C-shaped support frame 36 by a suitable means such as 1o welding; the narrow width rectangular beam 5o is fixedly attached to the top surface of the I-beam 48 by welding and the hexagonal beam 42 is fixedly attached to the top surface of the narrow width rectangular beam 50 by bolts.
The upper guide means 24 comprises a T-shaped beam 58 and a pair of rollers 60. The T-shaped beam 58 is fixedly attached to the C-shaped support frame 36 through a suitable means such as welding. The T-shaped beam 58 extends parallel to the extrusion axis A. The rollers 60 are rotatably mounted to the rectangular support frame 28 such that one roller lies on each side of the vertical leg of the T-shaped beam 58. The rollers 6o are typically constructed of steel and the T-shaped beam 58 can be constructed of a suitable structural material such as steel.
As seen in FIG. 3, the extrusion pulley mounting 22 incorporates two lower guide means 26 and a single upper guide means 24. The two lower guide means 26 are spaced a distance apart along a leg 38 to provide additional stability and accuracy during the pulling operation.
As seen in FIGS. 4 and 5, the preferred embodiment of the lower guide means 26 incorporates a set of three rollers 44 mounted for rolling contact on three sides of the hexagonal beam 42. In FIG. 4, portions of the rollers and mounting structure are broken away to show details of the construction. The top roller 66 provides support for the extrusion pulley mounting 22 and the side rollers 80 provide stability during the -u-extrusion operation. The top roller 66 rolls along a support surface 72 and the side rollers 80 roll along stability surfaces 74 of the hexagonal shaped beam 42.
The support surfaces 72 and 74 are oriented at 60° with respect to each other. That is, the intersection of surfaces 72 and 74 when extended have an included angle of 60°.
Each of the rollers 44 is mounted on a cylindrical axle 52. The axes 52 are oriented 60° with respect to each other. Contained within the body of the roller 44 are suitable bearings 54 which allow for efficient rotation of the rollers 44 about the axles 52.
Suitable roller washers 56 are mounted on each end of the bearings which are lubricated through a conventional grease fitting 62 in the axle 52. The grease fitting 62 communicates directly with a hollow canal within the axle 63 which in turn communicates with the bearings 54 and allows grease to flow from the grease fitting 62 to the bearings 54.
A mounting plate 65 is fixedly attached to the rectangular support frame 28 through a suitable means such as welding. In the preferred embodiment, the mounting plate 65 is welded directly to the bottom surface of the rectangular support frame 28. Fixedly attached to the mounting plate 65 is a base plate 64.
The base plate 64 and the mounting plate 65 provide the support and mounting structure for the lower guide means 26.
The top roller 66 of the lower guide means 26 is fixedly attached to the base plate 64 through a fixed roller mounting 68 and mounting screws 70. The mounting screws 70 extend through an appropriate opening in the base plate 64 and are threaded directly into the fixed roller mount 68. The axle 52 for the top roller 66 is securely mounted in the fixed roller mount 68. The top roller 66 freely rotates on the axle 52 through bearings 54 while the fixed roller mount 66 supports the weight of the extrusion pulley mounting 22.
The side rollers 80 are mounted in an adjustable roller mount 82 which is generally J-shaped.
The adjustable roller mount 82 is attached to the fixed roller mount 68 through the use of mounting screws 84.
The mounting screws 84 are inserted through an appro-priate opening in the vertical portion of the J-shaped adjustable roller mount 82 and axe threaded directly into the fixed roller mount 68. The axle 52 for the side rollers so extends through an appropriate opening in the lower portion of the J-shaped adjustable roller mount s2 and is fixedly attached to the adjustable roller mount 82 through an adjustable C-clamp 90 and tightening screw 92.
The C-clamp 90 surrounds the axle 52 and through the tightening of the tightening screw 92 may securely clamp the axle 52 of the side roller 80 in place. Adjustments of the side rollers 80 for proper alignment of the side rollers 80 on the stability surfaces 74 can be made by adjusting the mounting screws 84 which raise or lower J-shaped mount 82.
As seen in FIGS. 6 and 7, the preferred embodiment of the upper guide means 24 incorporates a set of two rollers 60 on each side of the T-shaped beam 58.
The rollers 60 roll along a lateral stabilizing guide surface 98 of the T-shaped beam 58. In the preferred embodiment, the lateral stabilizing guide surfaces 98 are vertical. The T-shaped beam 58 is shown in one piece but can be made of two bar stock pieces bolted together perpendicular to each other.
The upper guide means 24 is fixedly attached to the rectangular support frame 28 through a mounting plate 3o 100 and a L-shaped roller mount 102. The mounting plate 10o is fixedly attached to the rectangular support frame 28 through a suitable means such as welding. The L-shaped roller mount 102 is fixedly attached to the mounting plate 100 through a plurality of mounting screws 104. The mounting screws 104 are inserted through a plurality of appropriate openings 106 in the L-shaped roller mounting 102. The openings 106 are oval in shape to allow for horizontal adjustment of the L-shaped roller mounting 102.
_g-~G~~.~:,~~~y The rollers 60 are mounted on axles 110.
Suitable bearings (not shown) are constructed on the inside of the rollers 60 to allow for efficient rolling action of the rollers 60 on the axle 110. The bearings are similar to those described previously for the lower guide means 26.
The axles 110 extend through an appropriate opening in the horizontal face of the L-shaped roller mounting 102 and are held in place by a conventional nut 112 and lock washer 114. The bottom portion of the axle 110 is threaded to provide for cooperation with the nut 112.
The upper guide means 24 help provide for efficient and studder-free tracking of the extrusion pulley mounting 22 along the extrusion axis A. 2n order to maintain the most accurate movement of the extrusion pulley mounting 22 along the extrusion axis A, the upper guide means 24 is provided with a suitable mechanism for making minor adjustments in the alignment of the rollers 60. To this end, one of the two roller axles is provided with an eccentric mounting 116. The eccentric shape allows for the transverse movement of one of the rollers 60 relative to the other so that the two rollers can be adjusted snug against the T-shaped beam 58.
The preferred embodiment discloses,the incorporation of the hexagonal beam as the lower guide means and the T-shaped beam as the upper guide means, although it is clear that these two guide means can be reversed. The hexagonal beam can be incorporated as the upper guide means and provide both support and stability for the extrusion pullet when the pulley is suspended from the beam. Further, the T-shaped beam could likewise be incorporated as the lower guide means and still provide lateral stability for the suspended extrusion pulley.
The preferred embodiment provides for the use of three surfaces on the hexagonal beam, wherein the guide surfaces of _the hexagonal beam are oriented approximately 60° apart. However, it is to be under-~~~..!F~ ~ ~3:~a stood that the exact angle and configuration can vary provided the extrusion puller is still supported and stabilized by three guide surfaces which have acute angles between them. In addition, there is no need that the beam be hexagonal in shape, any multi-face beam could be used provided the support and stability functions are still accomplished through three surfaces oriented 60°
apart.
While particular embodiments of the invention have been shown, it will be understood, of course, that the invention is not limited thereto since modifications may be made by those skilled in the art, particularly in light of the foregoing teachings. It is, therefore, contemplated by the appended claims to cover any such modification as incorporate those features which constitute the essential features of these improvements within the true spirit and scope of the invention.
Referring to FIG. 1, an extrusion pullet 14 is mounted on a lower guide means 26 and an upper guide means 28 for movement along a run out table 16 from an extrusion press 12. It is well known in the art to construct a pulling apparatus wherein the material to be pulled 18 is forced through the extrusion press 12 and gripped by the extrusion pullet 14. The extrusion pullet 14 is driven away from the extrusion press 12 along the extrusion axis A by a suitable drive means which may include a chain (not shown) beneath the run-out table 16 (not shown) and a chain connector 20. After the extrusion is completed, the extruded material 18 is moved to a cooling table 17 for further processing by a belt conveyor 19.
As seen in FIG. 2, the extrusion pullet 14 is guided along the pulling axis A by an extrusion pullet mounting 22. The extrusion pullet mounting 22 of the invention is guided by an upper guide means 24 and a lower guide means 26. These guide means help to provide support and linear accuracy in the extrusion pracess.
The extrusion pullet mounting 22 comprises a ' rectangular support frame 28 which is mounted between the upper guide means 24 and the lower guide means 26.
Fixedly attached to the rectangular frame 28 is a suitable mounting structure 30 for a pair of extrusion pullet jaws, an upper jaw 32 and a lower jaw 34. The pullet jaw mounting structure 30 is arranged such that the pullet jaws 32, 34 are above and adjacent to the run out table 16. On the opposite side of the rectangular frame 28 from the mounting structure 30 and pullet jaws 32, 34 is a C-shaped support frame 36. The C-shaped support frame 36 provides support for the rectangular support frame 28 along the extrusion axis A through the upper and lower guide means 24, 26.
The lower guide means 26 comprises a hexagonal beam 42, and a plurality of rollers 44. The rollers 44 are typically constructed of steel. The hexagonal beam a~~~~~~~~i 42 may be constructed of steel and is typically rolled to close tolerances to provide accurate and studder-free extrusion pulling.
The hexagonal beam 42 extends parallel to the extrusion axis A and is supported by a suitable support means 46. In the preferred embodiment the support means 46 comprises a conventional I-beam 48 and a narrow width rectangular beam 50. The I-beam 48 is attached to the C-shaped support frame 36 by a suitable means such as 1o welding; the narrow width rectangular beam 5o is fixedly attached to the top surface of the I-beam 48 by welding and the hexagonal beam 42 is fixedly attached to the top surface of the narrow width rectangular beam 50 by bolts.
The upper guide means 24 comprises a T-shaped beam 58 and a pair of rollers 60. The T-shaped beam 58 is fixedly attached to the C-shaped support frame 36 through a suitable means such as welding. The T-shaped beam 58 extends parallel to the extrusion axis A. The rollers 60 are rotatably mounted to the rectangular support frame 28 such that one roller lies on each side of the vertical leg of the T-shaped beam 58. The rollers 6o are typically constructed of steel and the T-shaped beam 58 can be constructed of a suitable structural material such as steel.
As seen in FIG. 3, the extrusion pulley mounting 22 incorporates two lower guide means 26 and a single upper guide means 24. The two lower guide means 26 are spaced a distance apart along a leg 38 to provide additional stability and accuracy during the pulling operation.
As seen in FIGS. 4 and 5, the preferred embodiment of the lower guide means 26 incorporates a set of three rollers 44 mounted for rolling contact on three sides of the hexagonal beam 42. In FIG. 4, portions of the rollers and mounting structure are broken away to show details of the construction. The top roller 66 provides support for the extrusion pulley mounting 22 and the side rollers 80 provide stability during the -u-extrusion operation. The top roller 66 rolls along a support surface 72 and the side rollers 80 roll along stability surfaces 74 of the hexagonal shaped beam 42.
The support surfaces 72 and 74 are oriented at 60° with respect to each other. That is, the intersection of surfaces 72 and 74 when extended have an included angle of 60°.
Each of the rollers 44 is mounted on a cylindrical axle 52. The axes 52 are oriented 60° with respect to each other. Contained within the body of the roller 44 are suitable bearings 54 which allow for efficient rotation of the rollers 44 about the axles 52.
Suitable roller washers 56 are mounted on each end of the bearings which are lubricated through a conventional grease fitting 62 in the axle 52. The grease fitting 62 communicates directly with a hollow canal within the axle 63 which in turn communicates with the bearings 54 and allows grease to flow from the grease fitting 62 to the bearings 54.
A mounting plate 65 is fixedly attached to the rectangular support frame 28 through a suitable means such as welding. In the preferred embodiment, the mounting plate 65 is welded directly to the bottom surface of the rectangular support frame 28. Fixedly attached to the mounting plate 65 is a base plate 64.
The base plate 64 and the mounting plate 65 provide the support and mounting structure for the lower guide means 26.
The top roller 66 of the lower guide means 26 is fixedly attached to the base plate 64 through a fixed roller mounting 68 and mounting screws 70. The mounting screws 70 extend through an appropriate opening in the base plate 64 and are threaded directly into the fixed roller mount 68. The axle 52 for the top roller 66 is securely mounted in the fixed roller mount 68. The top roller 66 freely rotates on the axle 52 through bearings 54 while the fixed roller mount 66 supports the weight of the extrusion pulley mounting 22.
The side rollers 80 are mounted in an adjustable roller mount 82 which is generally J-shaped.
The adjustable roller mount 82 is attached to the fixed roller mount 68 through the use of mounting screws 84.
The mounting screws 84 are inserted through an appro-priate opening in the vertical portion of the J-shaped adjustable roller mount 82 and axe threaded directly into the fixed roller mount 68. The axle 52 for the side rollers so extends through an appropriate opening in the lower portion of the J-shaped adjustable roller mount s2 and is fixedly attached to the adjustable roller mount 82 through an adjustable C-clamp 90 and tightening screw 92.
The C-clamp 90 surrounds the axle 52 and through the tightening of the tightening screw 92 may securely clamp the axle 52 of the side roller 80 in place. Adjustments of the side rollers 80 for proper alignment of the side rollers 80 on the stability surfaces 74 can be made by adjusting the mounting screws 84 which raise or lower J-shaped mount 82.
As seen in FIGS. 6 and 7, the preferred embodiment of the upper guide means 24 incorporates a set of two rollers 60 on each side of the T-shaped beam 58.
The rollers 60 roll along a lateral stabilizing guide surface 98 of the T-shaped beam 58. In the preferred embodiment, the lateral stabilizing guide surfaces 98 are vertical. The T-shaped beam 58 is shown in one piece but can be made of two bar stock pieces bolted together perpendicular to each other.
The upper guide means 24 is fixedly attached to the rectangular support frame 28 through a mounting plate 3o 100 and a L-shaped roller mount 102. The mounting plate 10o is fixedly attached to the rectangular support frame 28 through a suitable means such as welding. The L-shaped roller mount 102 is fixedly attached to the mounting plate 100 through a plurality of mounting screws 104. The mounting screws 104 are inserted through a plurality of appropriate openings 106 in the L-shaped roller mounting 102. The openings 106 are oval in shape to allow for horizontal adjustment of the L-shaped roller mounting 102.
_g-~G~~.~:,~~~y The rollers 60 are mounted on axles 110.
Suitable bearings (not shown) are constructed on the inside of the rollers 60 to allow for efficient rolling action of the rollers 60 on the axle 110. The bearings are similar to those described previously for the lower guide means 26.
The axles 110 extend through an appropriate opening in the horizontal face of the L-shaped roller mounting 102 and are held in place by a conventional nut 112 and lock washer 114. The bottom portion of the axle 110 is threaded to provide for cooperation with the nut 112.
The upper guide means 24 help provide for efficient and studder-free tracking of the extrusion pulley mounting 22 along the extrusion axis A. 2n order to maintain the most accurate movement of the extrusion pulley mounting 22 along the extrusion axis A, the upper guide means 24 is provided with a suitable mechanism for making minor adjustments in the alignment of the rollers 60. To this end, one of the two roller axles is provided with an eccentric mounting 116. The eccentric shape allows for the transverse movement of one of the rollers 60 relative to the other so that the two rollers can be adjusted snug against the T-shaped beam 58.
The preferred embodiment discloses,the incorporation of the hexagonal beam as the lower guide means and the T-shaped beam as the upper guide means, although it is clear that these two guide means can be reversed. The hexagonal beam can be incorporated as the upper guide means and provide both support and stability for the extrusion pullet when the pulley is suspended from the beam. Further, the T-shaped beam could likewise be incorporated as the lower guide means and still provide lateral stability for the suspended extrusion pulley.
The preferred embodiment provides for the use of three surfaces on the hexagonal beam, wherein the guide surfaces of _the hexagonal beam are oriented approximately 60° apart. However, it is to be under-~~~..!F~ ~ ~3:~a stood that the exact angle and configuration can vary provided the extrusion puller is still supported and stabilized by three guide surfaces which have acute angles between them. In addition, there is no need that the beam be hexagonal in shape, any multi-face beam could be used provided the support and stability functions are still accomplished through three surfaces oriented 60°
apart.
While particular embodiments of the invention have been shown, it will be understood, of course, that the invention is not limited thereto since modifications may be made by those skilled in the art, particularly in light of the foregoing teachings. It is, therefore, contemplated by the appended claims to cover any such modification as incorporate those features which constitute the essential features of these improvements within the true spirit and scope of the invention.
Claims (10)
1. In an extrusion pulling apparatus comprising an extrusion puller which is guided by a lower guide beneath said puller and guided by an upper guide above the puller for movement alone a line from an extrusion press, wherein slippage of said puller with respect to the upper or lower guides results in undesirable irregularities in the work, the improvement comprising;
one of the upper and lower guides comprises a multi-faced beam with at least three guide face surfaces oriented approximately 60° apart;
said one upper or lower guides has at least three first rollers which are aligned to roll on three guide face surfaces of the multi-faced beams for accurate extrusion pulling wherein at least one of said three first rollers is adjustable to accurately align the roller to the guide surface of said multi-faced beam;
said multi-faced beam supports the puller through at least one of the three rollers;
the other of the upper and lower guides has a lateral stabilizing guide surface; and said puller has at least two second rollers, one of which rolls on each side of the lateral stabilizing guide surfaces.
one of the upper and lower guides comprises a multi-faced beam with at least three guide face surfaces oriented approximately 60° apart;
said one upper or lower guides has at least three first rollers which are aligned to roll on three guide face surfaces of the multi-faced beams for accurate extrusion pulling wherein at least one of said three first rollers is adjustable to accurately align the roller to the guide surface of said multi-faced beam;
said multi-faced beam supports the puller through at least one of the three rollers;
the other of the upper and lower guides has a lateral stabilizing guide surface; and said puller has at least two second rollers, one of which rolls on each side of the lateral stabilizing guide surfaces.
2. An extrusion pulling apparatus according to claim 1 wherein one of the said upper and lower guides comprises a hexagonal beam.
3. An extrusion pulling apparatus according to claim 2 wherein said hexagonal beam is the lower guide.
4. An extrusion pulling apparatus according to claim 3 wherein said upper guide comprises a T-shaped beam.
5. An extrusion pulling apparatus according to claim 2 wherein said lateral stabilizing guide surfaces are vertical.
6. An extrusion pulling apparatus according to claim 2 wherein said other guide comprises a T-shaped beam.
7. An extrusion pulling apparatus according to claim 2 wherein said rollers which roll on the three guide face surfaces are mounted on axes which are oriented approximately 60° from each other.
8. An extrusion pulling apparatus according to claim 1 wherein said rollers which roll on the lateral stabilizing guide surfaces have axes parallel to each other.
9. An extrusion pulling apparatus according to claim 1 wherein said upper guide comprises a T-shaped beam.
10. An extrusion pulling apparatus according to claim 1 wherein said rollers which roll on the three guide face surfaces are mounted on axes which are oriented approximately 60° from each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43857589A | 1989-11-16 | 1989-11-16 | |
| US438,575 | 1989-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2016788A1 CA2016788A1 (en) | 1991-05-16 |
| CA2016788C true CA2016788C (en) | 2000-03-21 |
Family
ID=23741165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2016788 Expired - Fee Related CA2016788C (en) | 1989-11-16 | 1990-05-15 | Extrusion puller mounting |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0432378A1 (en) |
| CA (1) | CA2016788C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT403258B (en) * | 1993-10-04 | 1997-12-29 | Reisch Ing Walter | EXTRACTION DEVICE ON EXTRACTION PRESSES |
| CN103521547B (en) * | 2013-11-06 | 2016-08-17 | 苏州工业园区新凯精密五金有限公司 | A kind of mould structure with cage type stripping pipe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1237047B (en) * | 1965-02-10 | 1967-03-23 | Mannesmann Ag | Pulling cart for a chain pulling bench |
| AT334711B (en) * | 1974-10-01 | 1976-02-10 | Edwards & Co | PULLER FOR EXTRUSION PRESSES |
| FR2447792A1 (en) * | 1979-02-01 | 1980-08-29 | Goubaud Michel | Hand propelled disc cutting asbestos sheet - follows deck plate gap and is mounted on three-roller carriage traversing hexagonal section rail |
| DE3723824A1 (en) * | 1987-07-18 | 1989-01-26 | Hasenclever Maschf Sms | METHOD FOR REMOVING A STRAND PRODUCED IN AN EXTRUSION OR PIPE PRESS, AND CONTROLLING A REMOVAL DEVICE THEREFOR |
-
1990
- 1990-05-15 CA CA 2016788 patent/CA2016788C/en not_active Expired - Fee Related
- 1990-09-06 EP EP90117227A patent/EP0432378A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0432378A1 (en) | 1991-06-19 |
| CA2016788A1 (en) | 1991-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |