CA1262859A - Hot shearing apparatus - Google Patents
Hot shearing apparatusInfo
- Publication number
- CA1262859A CA1262859A CA000504161A CA504161A CA1262859A CA 1262859 A CA1262859 A CA 1262859A CA 000504161 A CA000504161 A CA 000504161A CA 504161 A CA504161 A CA 504161A CA 1262859 A CA1262859 A CA 1262859A
- Authority
- CA
- Canada
- Prior art keywords
- shearing
- sheared
- abutment
- movable
- hot
- 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
- 238000010008 shearing Methods 0.000 title claims abstract description 110
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/10—Stops for positioning work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Abstract
Abstract of the Disclosure A hot shearing apparatus A hot shearing apparatus for elongated metallic materi-al comprises fixed and movable shearing members (4,6) and an abutment means (16) which is adjustable to set the length of material pieces to be sheared off from the elongated material and a support means (14) for the material pieces. The abutment means (16) and the support means (14) are arranged at a projection (12) which is moved together with the movable shearing member (16) into an ejecting position below the supply line of the material (1) for ejecting the sheared piece of material (21) and transferring it to a conveyor (20) held at the level of the ejecting position. The sheared piece of material (21) may be ejected by the abutment means (16) in a direction parallel, but opposed to the supply direction. (Fig. 1)
Description
r~l~
A hot shearing apparatus Field of the invention The instant invention relates to a hot shearing apparatus for shearing heated elongated metallic material, especially light metal cast bars, comprising a fixed shearing member and a movable shearing member, the sheared piece of material 5 being moved together with the shearing stroke of the movable shearing member into an ejecting position outside of the supply line of the material and being transferred in this ejecting position to a conve~or.
-Back round of the inventiong __ __ _ In a known hot shearing apparatus of this kind the adjustable 10 abutment means is arranged at the frame of the hot shearing apparatus in alignment with the material supply line SQ as to be displaceable only in the direction of material supply and contrary to that direction. The ejector is provided se-parately at the machine frame below the material supply line.
15 For shearing, a portion of the conveyor which serves to re-move the sheared piece of material is raised into a position at which a trough secured to the conveyor holds the material end to be sheared between the movable shearing ring and the abutment device. As the movable shearing ring carries out 20 its vertical downward shearing movement, the conveyor too is lowered into the ejecting position. The ejector is actuat-ed to effect the transfer to conveyor in the lower ejecting position (US-patent 4rl52,959 granted to F.W.Elhaus on May8,79).
.
The known hot shearing apparatus is expensive in structure.
25 Moreover, the conveyor must be moved up and down with every shearing process. This makes the hot shearing apparatus de-pendent on the conveyor and prolongs nonproductive times.
Besides, the conveyor is expensive.
A hot shearing apparatus is known with which the ejector 30 together with an abutment screw is arranged at the machine frame so as to be aligned with the material supply line (GB-Patent 1~3 382). The piece of material sheared is ejected through an opening in the holder of the movable shearing ring along the line of supply of the material in opposite direction to the conveying direction of the unsheared material. This is very cumbersome because first the unsheared material must be pushed back to provide free space for the ejection of the sheared piece of material. The removal of the sheared piece of material out of the material suppl~ line is even more complicated than with the prior art discussed above of the ~eneric kind in questi.on.
Tn a known cold shearing apparatus a cold metal rod to be sheared is gripped by a pair of fixed clamp-ing jaws and sheared by a pair of movable cutting jaws. The length of the pieces to be cut is defined by an abutment which after the shearing has taken place acts as an ejecting means (GB~Patent 871 461).
Cutting of cold metal rods is not critical as regards oblique cuts or deformation of the sheared pieces by reason of the obstinacy of the cold metal. Support of the rod pieces cut or to be cut is provided solely by the movable cutting jaw, which again is not criti-cal when cutting cold metal rods by reason of theirstiffness.
Summary of the invention In hot shearing large forces in transverse direction and in lengthwise direction of the material are induced by the shearing and by reason of the plasticity of the heated material. Such forces may cause obli~ue or slanted cuts and undesirable deformations of the sheared pieces.
-3'~
It is therefore an object of an aspect of the invention to provide an abutment and support for a piece of material to be sheared against the large forces mentioned during lhe whole shearing stroke of the movable shearing member of -the hot shearing apparatus in lengthwise direction and in shearing direc~ion to avoid oblique or slanted cuts and undue det`ormations of the sheared pieces.
It is an objec-t of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which an abutment for supporting a piece of material - to be sheared is made adjustable to accomplish perfect shearing even of pieces of very short lengths.
It is an object of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which the sheared pieces are ejected from the apparatus either by a separate ejector arranged in a line parallel to the supply line of the material or by the abutment means itself, but in the latter case in a direction opposite to the supply direction of the material.
It is an object of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which the conveyor is made independent of the shear-' ing movement.
An aspect o~ the invention is as follows:
~ ~ ~2 ~ 3 A hot shearing apparatus for shearing heated elongatedmetallic material, especially light metal cast bars, comprising a fixed shearing member and a movable shear-ing member defining a shearing plane, the sheared piece of material being moved together with the shearing stroke of the movable shearing member into an ejecting position outside of the supply line of the material and being transferred from the ejecting position to a conveyor into a conveying position and further com-prising an adjustable abutment means and a supportingmeans for the material to adjust the length of material to be sheared and to support the piece of material sheared or to be sheared, the adjustable abut-ment means and the support means being connected to the movable shearing member for common movement there-with.
By way of added explanation, to meet the foregoing objects, the invention proposes a hot shearing apparatus of the kind specified initially in which an abutment means and a supporting means arranged at the movable shearing member so as to be taken along by the latter into the ejecting position, which is in line with the conveyor.
According to the invention the abutment means as well as the support means follow the shearing movement of the movable shearing element. The sheared piece of material is supported against shearing forces partly in the movable shearing member and partly in the support means, resepectively, and against lengthwise directed forces at the abutment rneans during the whole shearing movement and when being transferred into the ejecting position. Thus any supporting by the conveyor may be dispensed with For this reason the conveyor may remain alwa~s in unchanged position at the place of ejection so that the conveyor is not only greatly simplified but also rendered independent of the hot shearing apparatus.
When the abutment means are used for ejecting and transferring the sheared pieces to the conveyor the ejecting movement of the abutment means takes place in parallel with a direction which is opposite of the material supply direction in which the elongated material normally is fed from a furnace to the hot shearing apparatus. This enables the conveyor to be arranged in space saving manner between the loading end of the hot shearing apparatus and the discharge end of the furnace. Moreover, the apparatus is simpli-fied in comparison to the known hot shearing apparatusby the dual function abutment means for abutting and ejecting the pieces sheared or to be sheared, ejecting being performed in the known hot shearing apparatus by separate pushing means.
In a preferred embodiment of the hot shearing appara-tus the abutment means is guided to slide in a projec tion which may be disposed pivotably in front of the shearing ring holder of the movable shearing ring, said projection supporting the piece of material to be sheared or already sheared against the shearing ~ ~ ~2 ~ 3 forces.
The abutment means comprise an abutment member coope-rating with the front end of the material to be sheared and being exchangeable for adaptation to different material diameters.
AS the conveyor is independent of the hot shearing apparatus according to the invention, it may be suffi-cient in a parallel arrangement of two hot shearing apparatus according to the invention to provide but one conveyor for removing the sheared pieces of mate-rial, both hot shearing apparatus feeding it either in common or alternatively.
Important advantages to be achieved by the invention may be summarized as follows:
- the conveyor for the sheared billets is simplified because of the fact that it does not move with the movable shearing member and therefore may always be positioned at the same level at the place of ejection of the sheared piece, ~ simplification and a reduction of expenditure are obtained from the combination of the abutment means and the ejecting means in a single structural member, - by its large abutment surface adapted to the mate-rial cross section the abutment means warrantsthe optimum shearing angle by affording optimum support in longitudinal direction of the material being sheared against the lengthwise acting forces of deformation resulting from the hot shearing, thus providing an optimum shear surface quality, - tolerances in length of the sheared pieces are observed closely by the adjustable abutment means, - even very short pieces can be sheared at high quali-
A hot shearing apparatus Field of the invention The instant invention relates to a hot shearing apparatus for shearing heated elongated metallic material, especially light metal cast bars, comprising a fixed shearing member and a movable shearing member, the sheared piece of material 5 being moved together with the shearing stroke of the movable shearing member into an ejecting position outside of the supply line of the material and being transferred in this ejecting position to a conve~or.
-Back round of the inventiong __ __ _ In a known hot shearing apparatus of this kind the adjustable 10 abutment means is arranged at the frame of the hot shearing apparatus in alignment with the material supply line SQ as to be displaceable only in the direction of material supply and contrary to that direction. The ejector is provided se-parately at the machine frame below the material supply line.
15 For shearing, a portion of the conveyor which serves to re-move the sheared piece of material is raised into a position at which a trough secured to the conveyor holds the material end to be sheared between the movable shearing ring and the abutment device. As the movable shearing ring carries out 20 its vertical downward shearing movement, the conveyor too is lowered into the ejecting position. The ejector is actuat-ed to effect the transfer to conveyor in the lower ejecting position (US-patent 4rl52,959 granted to F.W.Elhaus on May8,79).
.
The known hot shearing apparatus is expensive in structure.
25 Moreover, the conveyor must be moved up and down with every shearing process. This makes the hot shearing apparatus de-pendent on the conveyor and prolongs nonproductive times.
Besides, the conveyor is expensive.
A hot shearing apparatus is known with which the ejector 30 together with an abutment screw is arranged at the machine frame so as to be aligned with the material supply line (GB-Patent 1~3 382). The piece of material sheared is ejected through an opening in the holder of the movable shearing ring along the line of supply of the material in opposite direction to the conveying direction of the unsheared material. This is very cumbersome because first the unsheared material must be pushed back to provide free space for the ejection of the sheared piece of material. The removal of the sheared piece of material out of the material suppl~ line is even more complicated than with the prior art discussed above of the ~eneric kind in questi.on.
Tn a known cold shearing apparatus a cold metal rod to be sheared is gripped by a pair of fixed clamp-ing jaws and sheared by a pair of movable cutting jaws. The length of the pieces to be cut is defined by an abutment which after the shearing has taken place acts as an ejecting means (GB~Patent 871 461).
Cutting of cold metal rods is not critical as regards oblique cuts or deformation of the sheared pieces by reason of the obstinacy of the cold metal. Support of the rod pieces cut or to be cut is provided solely by the movable cutting jaw, which again is not criti-cal when cutting cold metal rods by reason of theirstiffness.
Summary of the invention In hot shearing large forces in transverse direction and in lengthwise direction of the material are induced by the shearing and by reason of the plasticity of the heated material. Such forces may cause obli~ue or slanted cuts and undesirable deformations of the sheared pieces.
-3'~
It is therefore an object of an aspect of the invention to provide an abutment and support for a piece of material to be sheared against the large forces mentioned during lhe whole shearing stroke of the movable shearing member of -the hot shearing apparatus in lengthwise direction and in shearing direc~ion to avoid oblique or slanted cuts and undue det`ormations of the sheared pieces.
It is an objec-t of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which an abutment for supporting a piece of material - to be sheared is made adjustable to accomplish perfect shearing even of pieces of very short lengths.
It is an object of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which the sheared pieces are ejected from the apparatus either by a separate ejector arranged in a line parallel to the supply line of the material or by the abutment means itself, but in the latter case in a direction opposite to the supply direction of the material.
It is an object of an aspect of the invention to provide a hot shearing apparatus of the kind described initially in which the conveyor is made independent of the shear-' ing movement.
An aspect o~ the invention is as follows:
~ ~ ~2 ~ 3 A hot shearing apparatus for shearing heated elongatedmetallic material, especially light metal cast bars, comprising a fixed shearing member and a movable shear-ing member defining a shearing plane, the sheared piece of material being moved together with the shearing stroke of the movable shearing member into an ejecting position outside of the supply line of the material and being transferred from the ejecting position to a conveyor into a conveying position and further com-prising an adjustable abutment means and a supportingmeans for the material to adjust the length of material to be sheared and to support the piece of material sheared or to be sheared, the adjustable abut-ment means and the support means being connected to the movable shearing member for common movement there-with.
By way of added explanation, to meet the foregoing objects, the invention proposes a hot shearing apparatus of the kind specified initially in which an abutment means and a supporting means arranged at the movable shearing member so as to be taken along by the latter into the ejecting position, which is in line with the conveyor.
According to the invention the abutment means as well as the support means follow the shearing movement of the movable shearing element. The sheared piece of material is supported against shearing forces partly in the movable shearing member and partly in the support means, resepectively, and against lengthwise directed forces at the abutment rneans during the whole shearing movement and when being transferred into the ejecting position. Thus any supporting by the conveyor may be dispensed with For this reason the conveyor may remain alwa~s in unchanged position at the place of ejection so that the conveyor is not only greatly simplified but also rendered independent of the hot shearing apparatus.
When the abutment means are used for ejecting and transferring the sheared pieces to the conveyor the ejecting movement of the abutment means takes place in parallel with a direction which is opposite of the material supply direction in which the elongated material normally is fed from a furnace to the hot shearing apparatus. This enables the conveyor to be arranged in space saving manner between the loading end of the hot shearing apparatus and the discharge end of the furnace. Moreover, the apparatus is simpli-fied in comparison to the known hot shearing apparatusby the dual function abutment means for abutting and ejecting the pieces sheared or to be sheared, ejecting being performed in the known hot shearing apparatus by separate pushing means.
In a preferred embodiment of the hot shearing appara-tus the abutment means is guided to slide in a projec tion which may be disposed pivotably in front of the shearing ring holder of the movable shearing ring, said projection supporting the piece of material to be sheared or already sheared against the shearing ~ ~ ~2 ~ 3 forces.
The abutment means comprise an abutment member coope-rating with the front end of the material to be sheared and being exchangeable for adaptation to different material diameters.
AS the conveyor is independent of the hot shearing apparatus according to the invention, it may be suffi-cient in a parallel arrangement of two hot shearing apparatus according to the invention to provide but one conveyor for removing the sheared pieces of mate-rial, both hot shearing apparatus feeding it either in common or alternatively.
Important advantages to be achieved by the invention may be summarized as follows:
- the conveyor for the sheared billets is simplified because of the fact that it does not move with the movable shearing member and therefore may always be positioned at the same level at the place of ejection of the sheared piece, ~ simplification and a reduction of expenditure are obtained from the combination of the abutment means and the ejecting means in a single structural member, - by its large abutment surface adapted to the mate-rial cross section the abutment means warrantsthe optimum shearing angle by affording optimum support in longitudinal direction of the material being sheared against the lengthwise acting forces of deformation resulting from the hot shearing, thus providing an optimum shear surface quality, - tolerances in length of the sheared pieces are observed closely by the adjustable abutment means, - even very short pieces can be sheared at high quali-
2~
ty because of the fact that the abutment meanscan be advanced closely to the shearing plane, - the sheared piece is supported over its total length during the whole shearing movement and displaceable in longitudinal direction into a conveyor which is independent of the shearing movement and this permits optimum handling of the sheared piece, - as the projection may be swung away from the frame of the hot shearing apparatus, an exchange of the shearing members may be accomplished quickly, - in case of jamming, the material can be pushed back rearwardly, i.e. towards the furnace.
Brief description of the drawing 15 The invention will be described further, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a diagrammatic longitudinal sectional view of a hot shearing apparatus according to the invention;
Fig. 2 is a diagrammatic top plan view of a parallel arrangement of two furnaces each followed by a respective hot shearing apparatus and a conveying device disposed transversely there-of for removal of sheared pieces of material~
D scription of the preferred embodiments In fig. 1 reference numeral 2 designates the frame of the hot shearing apparatus. This frame supports 30 a stationary shearing ring 4. The frame further carries a vertically oriented operating cylinder 7 which moves a movable shearing ring holder ~ and a movable shearing ring ~ received in the same verti-cal downward direction for shearing along shearing 35 edge 5.
The shearing ring holder ~ which is movable downwardly by the cylinder 7 carries a projection 12 which houses a roller train 14 for supporting the elongated mate-rial. An adjustable abutment in the form of a piston rod 16 of a hydraulic cylinder has a front end plate 18 which may be exchanged to adapt it to different material cross sections and is displaceable in directi-on opposite to the material supply direction in the material supply line 24. Reference numeral 19 desig-nates an angle or length encoder. The projection12 is hinged at the movable shearing ring holder 8 so as to be swung in a horizontal plane for exchange of the shearing rings 4,6.
A transverse conveyor 20 including at least one convey-ing trough 22 to receive a sheared billet 21 is firmly arranged at the loading end of the hot shearing apparatus below the fixed shearing ring 4. The convey-ing trough 22 is illustrated in dotted lines in the ejecting position.
Operation is as follows with the hot shearing appara-tus described above:
The material to be sheared, for example a round bar 1 of aluminium, is pushed along guide rollers 3 through the opening of the two shearing rings 4, 6 and on the rollers of roller train 1~ against the front end plate 18 of the adjustable abutment 16 serving as lengthwise stop. During shearing the length-wise stop acts as a prop to counteract lengthwise acting forces of displacement produced by the shearing, whereas the bar sheared or to be sheared is supported against transversely acting shearing forces on the roller train 14. This safeguards a shear surface at right angles at the sheard billet.
-- 8 ~
~ctuation of the cylinder 7 releases the shearing process which causes the movable shearing ring 6 to travel downwardly together with the projection 12 into the ejecting position (line of ejection 26), as indicated in ~iscontinuous lines in fig. 1. When the ejecting position is reached, the piston rod 16 moves to the left as seen in fig. 1 in the direc-tion of the arrow, thus ejecting the sheared billet 21 into the conveying trough 22 oP the transverse conveyor 20 which trough is located in the ejecting position. The sheare~ piece of material then is re-moved in a direction transversely of the plane of the drawing, being conveyed for instance to the feeder of an extruder.
In fig. 2 two furnaces 40, 42 having a preheating zone 43, 45 and a directly heated zone 46, 48 and a downstream hot shearing apparatus 50, 52 each, of the the design described above, are disposed side by side. Between the loading end of the hot shearing apparatus 50, 52 and the discharge end of the furnaces 40, 42, i.e. at the right end of zones 46, 48 as seen in fig. 2, there is a single transverse conveyor 20 by means of which the extrusion billets 2~ sheared off by the two hot shearing apparatus are dispensed alternative-ly or jointly into the conveying troughs (not shown) of thetransverse conveyor 20. At the end thereof they are supplied to an extruder (not shown), first in parallel with the sup-ply line 24 for the material ] and then transversely thereof.
ty because of the fact that the abutment meanscan be advanced closely to the shearing plane, - the sheared piece is supported over its total length during the whole shearing movement and displaceable in longitudinal direction into a conveyor which is independent of the shearing movement and this permits optimum handling of the sheared piece, - as the projection may be swung away from the frame of the hot shearing apparatus, an exchange of the shearing members may be accomplished quickly, - in case of jamming, the material can be pushed back rearwardly, i.e. towards the furnace.
Brief description of the drawing 15 The invention will be described further, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a diagrammatic longitudinal sectional view of a hot shearing apparatus according to the invention;
Fig. 2 is a diagrammatic top plan view of a parallel arrangement of two furnaces each followed by a respective hot shearing apparatus and a conveying device disposed transversely there-of for removal of sheared pieces of material~
D scription of the preferred embodiments In fig. 1 reference numeral 2 designates the frame of the hot shearing apparatus. This frame supports 30 a stationary shearing ring 4. The frame further carries a vertically oriented operating cylinder 7 which moves a movable shearing ring holder ~ and a movable shearing ring ~ received in the same verti-cal downward direction for shearing along shearing 35 edge 5.
The shearing ring holder ~ which is movable downwardly by the cylinder 7 carries a projection 12 which houses a roller train 14 for supporting the elongated mate-rial. An adjustable abutment in the form of a piston rod 16 of a hydraulic cylinder has a front end plate 18 which may be exchanged to adapt it to different material cross sections and is displaceable in directi-on opposite to the material supply direction in the material supply line 24. Reference numeral 19 desig-nates an angle or length encoder. The projection12 is hinged at the movable shearing ring holder 8 so as to be swung in a horizontal plane for exchange of the shearing rings 4,6.
A transverse conveyor 20 including at least one convey-ing trough 22 to receive a sheared billet 21 is firmly arranged at the loading end of the hot shearing apparatus below the fixed shearing ring 4. The convey-ing trough 22 is illustrated in dotted lines in the ejecting position.
Operation is as follows with the hot shearing appara-tus described above:
The material to be sheared, for example a round bar 1 of aluminium, is pushed along guide rollers 3 through the opening of the two shearing rings 4, 6 and on the rollers of roller train 1~ against the front end plate 18 of the adjustable abutment 16 serving as lengthwise stop. During shearing the length-wise stop acts as a prop to counteract lengthwise acting forces of displacement produced by the shearing, whereas the bar sheared or to be sheared is supported against transversely acting shearing forces on the roller train 14. This safeguards a shear surface at right angles at the sheard billet.
-- 8 ~
~ctuation of the cylinder 7 releases the shearing process which causes the movable shearing ring 6 to travel downwardly together with the projection 12 into the ejecting position (line of ejection 26), as indicated in ~iscontinuous lines in fig. 1. When the ejecting position is reached, the piston rod 16 moves to the left as seen in fig. 1 in the direc-tion of the arrow, thus ejecting the sheared billet 21 into the conveying trough 22 oP the transverse conveyor 20 which trough is located in the ejecting position. The sheare~ piece of material then is re-moved in a direction transversely of the plane of the drawing, being conveyed for instance to the feeder of an extruder.
In fig. 2 two furnaces 40, 42 having a preheating zone 43, 45 and a directly heated zone 46, 48 and a downstream hot shearing apparatus 50, 52 each, of the the design described above, are disposed side by side. Between the loading end of the hot shearing apparatus 50, 52 and the discharge end of the furnaces 40, 42, i.e. at the right end of zones 46, 48 as seen in fig. 2, there is a single transverse conveyor 20 by means of which the extrusion billets 2~ sheared off by the two hot shearing apparatus are dispensed alternative-ly or jointly into the conveying troughs (not shown) of thetransverse conveyor 20. At the end thereof they are supplied to an extruder (not shown), first in parallel with the sup-ply line 24 for the material ] and then transversely thereof.
Claims (9)
1. A hot shearing apparatus for shearing heated elon-gated metallic material, especially light metal cast bars, comprising a fixed shearing member and a movable shearing member defining a shearing plane, the sheared piece of material being moved together with the shearing stroke of the movable shearing member into an ejecting position outside of the supply line of the material and being trans-ferred from the ejecting position to a conveyor into a conveying position and further comprising an adjustable abutment means and a supporting means for the material to adjust the length of material to be sheared and to support the piece of material sheared or to be sheared, the adjustable abutment means and the support means being connected to the movable shearing member for common movement therewith.
2. A hot shearing apparatus as claimed in claim 1, wherein after a shearing stroke of the movable shearing member has been completed the adjustable abutment means is effective to eject the sheared piece of material in a direction which is parallel but opposed to the supply direction of the unsheared material.
3. Apparatus as claimed in claim 1, wherein the ad-justable abutment means comprises an abutment member abutting the front end surface of the materi-al to be sheared, said abutment member being exchan-geable to adapt it to different material cross sections.
4. Apparatus as claimed in claim 2, wherein the support means is fixedly mounted in and the abutment means is slidably guided at a projection connected to a holder of the movable shearing member on a side of the apparatus opposite to the material supply side.
5. Apparatus as claimed in claim 4, wherein the projec-tion is pivotably connected to the holder.
6. Apparatus as claimed in claim 2, wherein the adjust-able abutment means comprises an exchangeable abutment member which has an abutment surface dimensioned corresponding to the material cross section of the material to be sheared.
7. Apparatus as claimed in claim 1, wherein the abut-ment means may be adjusted along a supporting path for the sheared or the to be sheared piece up to an end position in the vicinity of the shear-ing plane for providing support transversely and over the whole length of material pieces having different lengths during the whole shearing stroke of the movable shearing member.
8. Apparatus as claimed in claim 4, wherein the adjust-able abutment means comprises a pressure fluid piston-cylinder means, the piston of which carries the abutment member, and wherein a roller train is arranged along a supporting path in the projecti-on for supporting the material pieces sheared or to be sheared.
9. A parallel arrangement of two hot shearing apparatus as claimed in claim 1, wherein a single conveyor for removal of the sheared pieces of material is fed by the two hot shearing apparatus either in common or alternatively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853509603 DE3509603A1 (en) | 1985-03-16 | 1985-03-16 | WARM SHEARS |
| DEP3509603.9 | 1985-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1262859A true CA1262859A (en) | 1989-11-14 |
Family
ID=6265482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000504161A Expired CA1262859A (en) | 1985-03-16 | 1986-03-14 | Hot shearing apparatus |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0195319B1 (en) |
| JP (1) | JPH0716810B2 (en) |
| CA (1) | CA1262859A (en) |
| DE (2) | DE3509603A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008052293A1 (en) | 2008-10-18 | 2010-04-22 | Schubert Maschinen- Und Anlagenbau Gmbh | Hot shears has base, stationary cutter and another cutter that is movable in horizontal direction, where shearing material is supplied at right angle for cutting arrangement |
| CN106975782B (en) * | 2017-04-13 | 2019-01-11 | 河钢股份有限公司 | A kind of bar shearing machine can be improved shear precision and adaptability |
| CN108941727A (en) * | 2018-06-29 | 2018-12-07 | 芜湖精塑实业有限公司 | A kind of aluminium bar hot shears method |
| CN114789275A (en) * | 2022-06-02 | 2022-07-26 | 杭州国隆加热设备有限公司 | Full-automatic caterpillar link high-temperature precision hot-cutting one-step forming system |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE662792A (en) * | ||||
| DE345724C (en) * | 1920-11-28 | 1921-12-17 | Paul Diesfeld | Scissors for cutting heated round iron bars into equal lengths |
| DE1178033B (en) * | 1954-12-31 | 1964-09-17 | Schloemann Ag | Fine iron rolling mill with shears arranged in the rolling stock guides between the finishing stand and the cooling bed |
| GB871461A (en) * | 1958-04-30 | 1961-06-28 | Vyzk Ustav Tvarecich Stroju | A shearing machine |
| FR1308809A (en) * | 1961-10-27 | 1962-11-09 | Blacas | Device for shearing profiles |
| US3348441A (en) * | 1964-03-27 | 1967-10-24 | American Metal Climax Inc | Apparatus for cutting billets by means of apertured dies |
| DD116410A1 (en) * | 1974-10-08 | 1975-11-20 | ||
| DE2604418C2 (en) * | 1976-02-05 | 1982-06-03 | Friedrich Wilhelm Dipl.-Ing. 5600 Wuppertal Elhaus | Ingot hot shears |
| JPS5363688A (en) * | 1976-11-19 | 1978-06-07 | Ube Ind Ltd | Billet cutting apparatus |
| JPS5914100U (en) * | 1982-07-19 | 1984-01-27 | 石川島播磨重工業株式会社 | radiation shielding material |
| FR2574322B1 (en) * | 1984-12-10 | 1989-05-19 | Clecim Sa | INSTALLATION FOR THE PREPARATION OF METAL BEADS TO BE SPINNING |
-
1985
- 1985-03-16 DE DE19853509603 patent/DE3509603A1/en active Granted
-
1986
- 1986-03-06 DE DE8686102950T patent/DE3664734D1/en not_active Expired
- 1986-03-06 EP EP86102950A patent/EP0195319B1/en not_active Expired
- 1986-03-14 JP JP61055165A patent/JPH0716810B2/en not_active Expired - Lifetime
- 1986-03-14 CA CA000504161A patent/CA1262859A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0195319A2 (en) | 1986-09-24 |
| DE3664734D1 (en) | 1989-09-07 |
| EP0195319B1 (en) | 1989-08-02 |
| EP0195319A3 (en) | 1987-07-01 |
| JPS61219512A (en) | 1986-09-29 |
| DE3509603A1 (en) | 1986-09-25 |
| JPH0716810B2 (en) | 1995-03-01 |
| DE3509603C2 (en) | 1987-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |