EP1761348A1 - Ziehmaschine sowie verfahren zum ziehen eines länglichen werkstücks - Google Patents
Ziehmaschine sowie verfahren zum ziehen eines länglichen werkstücksInfo
- Publication number
- EP1761348A1 EP1761348A1 EP05766208A EP05766208A EP1761348A1 EP 1761348 A1 EP1761348 A1 EP 1761348A1 EP 05766208 A EP05766208 A EP 05766208A EP 05766208 A EP05766208 A EP 05766208A EP 1761348 A1 EP1761348 A1 EP 1761348A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- sprocket
- link
- drawing machine
- elements
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/27—Carriages; Drives
- B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
Definitions
- the invention relates to a drawing machine for drawing an elongate workpiece with at least one articulated chain bearing chain elements connected by chain links, wherein the chain links comprise on one side the chain elements and on the other hand the chain elements hingedly connecting links and at least one pulling tool with directly corresponds to a link.
- the invention also relates to a method for drawing a lengthened workpiece by means of at least one draw chain-bearing link chain of chain links connected chain elements, the chain links on the one hand the chain elements and on the other hand the chain elements hingedly connecting links comprise, pulling forces of a pulling tool directly into at least one corresponding Conduit are routed.
- DE 101 22 340 A1 discloses a chain drawing machine for the continuous drawing of drawn material, in particular rod-shaped or pipe-shaped drawing stock, in which clamping jaws which clamp the drawn stock during the drawing operation are arranged on a toothed chain.
- Each toothed chain in this case comprises tabs which extend in the direction of rotation of the toothed chain, and bolt-like connecting elements arranged transversely to the direction of rotation of the toothed chain, by means of which tabs arranged essentially one behind the other in the direction of rotation are connected to one another.
- the jaws are attached to the bolt-like connecting elements.
- the clamping jaws have bores transversely to the direction of rotation of the toothed chain, through which the bolt-like connecting elements are inserted, so that each clamping block is fastened directly to at least one bolt-like connecting element.
- each clamping jaw is also in operative connection with the other bolt-like connecting elements via the toothed chain.
- the clamping jaw in the drawing chain shown there is in contact immediately on both sides with the bolt-like connecting elements, so that in this arrangement each clamping jaw or each pulling tool with two connecting elements is located directly in the Contact stands.
- With the remaining links is a respective Zieh ⁇ tool only on the chain so only indirectly, that is on the links, with in which the respective pulling tool is in direct contact, or via the chain link comprising this connecting link, in contact.
- the toothed chain constructed in this way is driven by deflection wheels having teeth, the teeth of which interact in the usual way with the tooth-like lugs of the toothed chains.
- a corresponding drawing machine is also known from DE 198 57 781, wherein in this drawing machine a block link chain, the blocks of which carry the drawing tools, is used.
- the blocks are arranged centrally on connecting bolts on which the lugs are then fastened on the outside.
- these In the center of the blocks, these each have a cavity, which provides space for pressure rollers, which are also arranged on the connecting pin.
- a completely different drawing machine disclosed in DE 148 593 B in which the contact forces are not applied via a frame but perpendicular to the orbit of the chain of the chain itself by each chain member carries a spring-wedge element which generates clamping forces in an upstream chain link ,
- the present invention is based on the object of further developing known drawing machines or drawing methods so that, with essentially the same dimensioning of a drawing chain, substantially improved drawing performances or a similar drawing performance are achieved with a smaller dimensioning of the drawing chain.
- the object of the invention is achieved by a drawing machine for drawing an elongated workpiece with at least one articulation chain bearing articulated chain elements connected by chain links, wherein the chain links comprise, on the one hand, the chain elements and, on the other hand, the chain elements articulated connecting links and at least a drawing tool corresponds directly to a connecting member, and which is distinguished by the fact that the drawing tool has at least two connecting pins (286, 480) with each connecting member (231, 416) with which the drawing tool is directly in contact. 481, 486, 487, 488), between which at least one connecting pin (287, 482, 483) of a second chain element is arranged, is in contact.
- the object of the invention is also achieved by a method for drawing an elongate workpiece by means of at least one articulated chain carrying chain links connected by chain links, wherein the chain links comprise, on the one hand, the chain elements and, on the other hand, the chain elements articulated connecting links, wherein pulling forces from a pulling Tool are passed directly into at least one corresponding connecting member, and the pulling forces of the drawing tool in each of the corresponding with the drawing horrs ⁇ members via at least two connection points, between which at least one connection point of a not directly connected to the pulling tool chain element is initiated become.
- an advantageous force splitting takes place at several connection points in the interface area "drawing tool / connecting link", whereby the machining forces are divided by the drawing tool into the connecting link of the articulated chain when pulling a workpiece
- the connecting members can be formed smaller at the same pulling forces or higher pulling forces can be realized with the same number of connecting forces.
- machining forces to be absorbed during pulling are greatly reduced by the provision of at least two connecting pins between the pulling tool and a connecting member corresponding therewith.
- the component groups of the present drawing machine are dimensioned smaller while maintaining the same performance.
- link chain is understood to mean any chain which essentially consists of chain elements connected via chain links.
- Form chain element or a plurality of modules be part of a chain link, so that the concept of chain elements arranged abstractly behind one another, via joint connections miteinan- the connected assemblies and the concept of chain joints describe any kind of articulated connection between two relatively rigid assemblies, regardless of the number of further assemblies involved in this.
- a joint chain is formed essentially linear and is often self-contained, it has degrees of freedom perpendicular to this linear formation direction at the level of the chain links, which ensure and also limit the mobility of the joint chain.
- Each chain element can preferably consist of a plurality of straps and / or of a block, wherein in the present context components or assemblies of a chain element whose thickness, preferably their width, do not vary by a factor "two", are referred to as tabs a chain element necessarily only one block, because if two blocks were to be found in parallel in a chain element, these tabs.
- tabs a chain element necessarily only one block, because if two blocks were to be found in parallel in a chain element, these tabs.
- block chains if there are only blocks, of link chains, if only tabs are present, and of block link chains when tabs are mixed with blocks.
- a chain joint comprises on the one hand at least two chain elements or assemblies thereof to be connected to one another, so that these chain elements form at least part of the chain link.
- a chain link comprises at least one connecting link, which articulates the at least two chain elements to be connected to one another.
- the connecting member thus realizes this connection with the degrees of freedom which are predetermined by the type of chain link.
- Connecting members accordingly connect individual chain elements in pairs.
- the connecting links preferably extend essentially transversely to the direction of rotation of the articulated chain and are often designed in the manner of a bolt.
- a connecting member consists of a single component or of a plurality of components, that is to say of a component group, such as, for example, individual connecting member elements of a connecting member.
- a plurality of assemblies of a chain element can be arranged parallel to each other and connected by one or more connecting members with another chain element or with the Bau ⁇ groups of another chain element.
- the strength of a chain element or assembly hier ⁇ of this as extension of the chain element is defined perpendicular to a connecting line between the two chain joints of the chain element. If the two chain joints are configured in such a way that they only provide one degree of freedom in one joint plane, similar to a knee joint, and that these two joint planes coincide, the width becomes in the present context a chain element or an assembly thereof defined as the strength of the chain element or this assembly perpendicular to these joint planes. In a self-contained chain, which has only the aforementioned chain joints, then results in a plane to which the entire chain arranged in parallel or in which the entire chain is arranged. The width of the chain elements or the assembly is then defined as the thickness of the chain links perpendicular to this last-mentioned plane.
- the object of the invention is achieved by a drawing machine which has at least one lug chain comprising gripping chains carrying drawing tools, in which the articulated chain has chain elements connected to one another via chain links, wherein the link chain Chain joints each comprise two connecting elements connecting chain elements and the drawing tools are attached to the tabs.
- forces from the drawing tools via the lugs act on the connecting links of the articulated chain, with the lashing ends assigned to each of the connecting links correspondingly being able to be referred to as connecting lugs.
- the forces are introduced into the connecting member at at least two connecting points, since the pulling tool is arranged on at least two mutually spaced tongues running parallel to each other, and thus to ensure a uniformly distributed introduction of force from the drawing tool into the articulated chain.
- the object of the invention is also achieved, independent of the abovementioned solutions, by a method in which pulling forces required for pulling are applied by means of at least one flaps and the pulling forces from the workpiece over the flaps into the Articulated chain are introduced.
- the object of the invention is furthermore solved, independently of the abovementioned solutions, by a drawing machine having at least one block of articulated chain which has chain elements interconnected by chain links, wherein the chain links each comprise two connecting links connecting two chain elements and each block of a chain element has, for each of its connecting links, at least two juxtaposed and spaced connection pins, between which at least one connecting pin of an adjacent chain element is arranged.
- a drawing machine for drawing an elongate workpiece with at least one drawing tools bearing articulated chain connected via chain links chain elements, in which the chain links on the one hand, the chain elements and on the other hand, the chain elements articulated connecting links include which at least one pulling tool is attached to a chain link, which at least one ReibRIC observed for frictional connection between the link chain and the workpiece and pressing means for applying a required for the frictional connection, applied by a frame contact pressure, wherein the pressing force acts directly on the chain link, and which It is characterized in that the drawing tool is in contact with at least two connecting pins with each connecting link, with which the drawing tool is in direct contact.
- the object is achieved cumulatively or alternatively by a method for drawing a lengthy workpiece by means of at least one articulated chain bearing chain links connected by chain links, in which the chain links comprise on the one hand the chain elements and on the other hand the chain elements hingedly connecting links, the pulling forces are directed by a toeing tool directly into at least one corresponding connecting member, the workpiece is frictionally engaged by the articulated chain, and contact forces required for the frictional connection are applied by a frame and the contact force acts directly on the chain member, the pulling forces of the drawing tool are introduced into each of the connecting members which correspond with the drawing tool via at least two connecting points.
- the term "direct” refers to the fact that the contact pressure, which is finally applied to the workpiece by the chain, bypassing other components of the chain, in particular bypassing the links, to the corresponding In this way, the number of highly loaded subassemblies is minimized, so that the number of highly stable subassemblies can be minimized.
- Such an arrangement and such a method differ fundamentally from an arrangement according to DE 198 57 781 A1 already according to its type, since there the contact forces are transmitted via the connecting links into the chain and to the drawing tools, so that the Verbin ⁇ ment links subject to a double burden and already for this reason have to be made much stronger and more voluminous than this in the aforementioned arrangement or in the above mentioned procedure needs to be the case. Also, this arrangement and this Ver ⁇ drive fundamentally different from DE 148 593 B, since there the contact forces are applied by the chain itself.
- present invention is thus based on the basic knowledge that advantageously the drawing tool, which is attached to a chain of a drawing machine, the pulling forces are introduced into the chain so that the chain joints are not burdened unnecessarily singular.
- present invention is distinguished in particular from DE 101 22 340 A1, but also from other prior art, in which the force is generally applied to a connecting bolt via a bore or via an opening provided on a journal is, so that caused by the two edges of the openings of these pins or by the edges of the holes shearing, where very high shear forces occur, which must be countered by the choice of very strong bolts.
- the object of the invention regardless of the aforementioned solutions, solved by a drawing machine, the at least one lashing comprehensive link chain, at least one Reib ⁇ closing device for frictional connection between the link chain and workpiece and Anpress- means for applying a for the Frictional connection having required contact pressure, wherein at least two tabs of a chain element or two overlapping tabs of adjacent Ketten ⁇ elements have contact surfaces on its side facing away from the workpiece.
- this makes it possible to apply the contact pressure forces from a frame of the drawing machine over the lugs of the link chain. This results in an extremely uniform distribution of the corresponding contact forces.
- no separate modules need to be provided for this purpose.
- the object of the invention is also achieved cumulatively or alternatively by a drawing machine which has at least one lug-comprising link chain carrying drawing tools for drawing an elongated workpiece, in which case at least one lug faces the workpiece Side has a drawing tool support.
- a drawing tool support can be dispensed with further relevant assemblies.
- a particularly advantageous power transmission between drawing tools and a frame of a drawing machine or idler rollers of a drawing machine results when a drawing tool of an adjacent chain element rests on a drawing tool support the tab of a chain element, when the drawing tool passes through a central drawing area.
- the contact forces can be distributed to a plurality of successively arranged chain elements or tabs, whereby a total of higher contact forces can be applied.
- the object of the invention is cumulatively or alternatively also solved by a drawing machine which has at least one lashing chain comprising lugs, and the lashing chain has at least one frictional engagement device for the frictional connection between the link chain and the workpiece and pressing means for applying one for the Frictional connection has required contact force, and the pressing means comprise the tabs of the link chain.
- the tabs of the present link chain interact with connecting links of the link chain, so that the machining forces occurring when the workpiece is pulled are at least two spaced connecting points into those corresponding to the tabs Connecting links of the plate link chain are initiated.
- the connecting links of the link chain are exposed in particular to lower shear forces, as a result of which the advantages already described above are also achieved in connection with the present invention.
- a link chain or link chain is a tooth chain. This makes it possible to use the advantages of a tab chain according to the above. He, too- follows a power transmission between the silent chain and corresponding sprockets relatively well, especially since a silent chain can interact easily with standardized sprockets together.
- the articulated chain or link chain can be used particularly effectively in conjunction with the present drawing machine, independently of the remaining marquettes of the present invention, if the drawing machine has at least one sprocket on which first rows extend perpendicular to the circumferential direction on its circumference first sprocket teeth and in the circumferential direction for this offset perpendicular to the direction of rotation extending second rows are arranged with second sprocket teeth, wherein the first Kettenradzähnereihen against the second Kettenradzähnereihen axially offset zu ⁇ each other.
- Kettenradzähnereihen By the mutually offset Kettenradzähnereihen also the individual Ketten ⁇ gear teeth of the first Kettenradzähnereihen against the sprocket teeth of the second Kettenradzähne ⁇ rows are arranged offset.
- a particularly large number of sprocket teeth is housed on a particularly small space at the circumference of the sprocket, which can attack alternately, for example, on a joint chain.
- the teeth or their flanks can also be configured axially overlapping.
- a particularly good and uniform force transmission between the sprocket and the link chain is created, which has a corresponding effect on the drawing process, which thus likewise proceeds more uniformly.
- This very good power transmission is due to the staggered Kettenradzähnereihen and the associated particularly large number of points of attack between the sprocket and the articulated chain.
- circumference essentially describes a region of the lateral surface of the sprocket on which the sprocket teeth are arranged.
- circumferential direction describes the component-specific direction of rotation which is predetermined for the sprocket when it drives or at least deflects a link chain of the drawing machine Essentially the direction of movement of the link chain of the drawing machine.
- sprocket teeth are understood to mean any entrainment means which are suitable for being fastened to a sprocket in such a way that a link chain can be driven or deflected with them.
- the term "sprocket teeth” is understood to mean rows of sprocket teeth spaced apart from each other in a direction perpendicular to the direction of rotation. The sprocket rows can be arranged on the sprocket at a distance from one another for example, be formed by the sprocket teeth in the manner of a helical sprocket.
- One embodiment provides for a sprocket which is formed from a plurality of individual sprocket blades, wherein first sprocket blades form first rows of first sprocket teeth of the sprocket and second sprocket second rows of second sprocket teeth of the sprocket blade and senk ⁇ right to the direction of rotation of the sprocket, the first Kettenradzähnereihen opposite to the second Ketten ten leopardereihen offset from each other.
- the sprocket does not consist of a single body, but is composed of a large number of individual Kettenradstagen.
- the sprocket can optionally be made and assembled by means of punched or cut components, and does not have to be made, for example, from a solid material. In this respect, such a sprocket can be produced relatively inexpensively.
- the thickness of a sprocket wheel is identical to the thickness of a sprocket tooth arranged thereon, so that the present sprocket wheel is structurally particularly easy to produce.
- the first sprocket blades are twisted relative to the second sprocket blades on a rotation axis to form a sprocket.
- adjoining Kettenradcopy are arranged rotated to each other, whereby a particularly uniform force distribution during operation can be guaranteed.
- first sprocket blades and the second sprocket blades are identical.
- all the sprocket wheels of a sprocket can be identically formed or manufactured, but due to the fact that the first sprocket and the second sprockets are rotated to each other to form a sprocket, arranged in a structurally particularly simple way the Ket ⁇ tenrad with staggered sprocket teeth. Due to the large number of identical components, the sprocket from the Kettenradstagen is particularly inexpensive to produce.
- a preferred embodiment provides that the first sprocket blades and the second sprocket blades are twisted together in an angle relative to one another to form a sprocket, in that a component free space is formed perpendicular to the direction of rotation of the sprocket between the first sprocket tooth rows and the second sprocket tooth rows. In this way, an overlap of the chain elements engaging in the teeth is made possible, whereby the distribution of force in the chain is reduced.
- the link chain can be relatively easily constructed when first Kettenradzähnereihen offset from the second Kettenradzähnereihen transverse to the direction of rotation of a sprocket offset by the thickness of a sprocket tooth to each other. This makes it possible to build the articulated chain of two types of chain elements each of the chain element width parallel angeordne ⁇ th tabs, the chain element types are each arranged alternately along the chain net. The sprocket rows can then each interact with a Kettenelementart.
- the "thickness" of a sprocket tooth is usually predetermined by the maximum material thickness of the sprocket tooth perpendicular to the direction of rotation, which has a sprocket tooth perpendicular to the direction of rotation of the sprocket wheel.
- the "thickness" of a sprocket tooth advantageously corresponds to the thickness of the sprocket blade.
- a tab or another assembly of a chain element can be placed next to or between the sprocket teeth, so that, for example, the chain elements in a stretched part of the chain can form a continuous in the circumferential direction, but interrupted by offset ange ⁇ arranged recesses surface, via which contact forces were ⁇ the.
- the term "receiving area” describes a space between a front sprocket tooth and a rear sprocket tooth in which a chain element of a joint chain can be arranged wholly or at least partially as soon as the sprocket interacts with a link chain.
- Such a receiving area is also advantageous, independently of the other features, for a drawing machine alone in order to be able to apply large pulling forces or contact forces.
- Particularly large forces can be transmitted cumulatively or alternatively to the aforementioned features between the sprocket and the articulated chain, in particular if a chain having links is used, if the chain element of the articulated chain is arranged in a chain element receiving region of a chain wheel such that a sprocket tooth of the sprocket of the drawing machine is exclusively in contact with recess-free attack areas of the chain element or a corresponding tab. Because the sprocket tooth is in contact exclusively with the recess-free engagement areas of the chain element or the strap, such recesses can be dispensed with. This gives the respective chain element a good inherent rigidity in order to absorb the pulling forces on the sprocket tooth. In addition, by eliminating such recesses, the recess-free area can be used to apply contact forces.
- the recess-free engagement region is preferably, seen in the direction of rotation of the joint chain, arranged at a front and at a rear end of the chain element or the tab.
- the chain elements of a link chain or their lugs or blocks have a straight or even Gleit ⁇ region at their sprocket facing areas.
- the articulated chain can have a large sliding or supporting surface to form a frame or a sliding and supporting zone of the drawing machine or to follower rollers.
- forces acting on the articulated chain via drawing tools can be conducted more effectively from the articulated chain to the drawing machine.
- the straight or even sliding region corresponds at least in one main pulling region of the drawing machine to a frame, a sliding and supporting zone of the drawing machine or to idler rollers.
- the main drawing region forms at least one middle drawing path in which drawing tools are in contact with the workpiece.
- the articulated chain is given a particularly stable and thus advantageous guidance when a sprocket tooth of a sprocket is flanked in each case by two chain elements of the articulated chain, at least in the area of action with the articulated chain of the drawing machine.
- FIG. 1 shows schematically a side view of a drawing machine with a drawing die
- FIG. 2 is a schematic side view of another drawing machine
- FIG. 3 is a schematic perspective view of a first chain hoist
- FIG. 4 is a schematic perspective view of a chain wheel with a link chain
- FIG. 5 is a schematic plan view of a sprocket with a link chain
- Figure 6 schematically shows a view of a hinge connection of a joint chain
- Figure 7 schematically shows a cross section through a drawing plane of a drawing machine.
- the drawing machine 1 shown in FIG. 1 for drawing an elongated workpiece 2 has a frame 3 in which a first chain hoist 4 and a second chain hoist 5 are arranged.
- the rack 3 of the drawing machine 1 has in its inlet region 6 a die holder 7, to which a die 8 is attached.
- the elongate workpiece 2 is drawn in the conveying direction 9 and in a drawing plane 10 (perpendicular to the drawing plane of FIG. 1) through the die 8 and accordingly transported from the inlet region 6 through the drawing machine 1 to an outlet region 11.
- a corresponding pulling force 12 is transmitted to the elongated workpiece 2. This is done in the drawing machine 1 by the first chain hoist 4 and by the second chain hoist fifth
- the first chain hoist 4 of the drawing machine 1 has a first link chain 13.
- the first link chain 13 consists essentially of chain elements 14, which are hingedly connected to each other via chain links 15 by means of connecting links 16.
- the first link chain 13 comprises drawing tools 17, by means of which a large-area and homogeneous force transmission between the elongate workpiece 2 and the first Chain hoist 4 is guaranteed.
- the first link chain 13 is deflected and / or driven by means of a front sprocket 18 and a rear sprocket 19. Both the front sprocket 18 and the rear sprocket 19 rotate about a rotation axis 20 and about a rotation axis 21, respectively. To move the elongate workpiece 2 in the drawing direction 9, both the front sprocket 18 and the rear sprocket 19 rotate in a circumferential direction 22 (only exemplified at the rear sprocket 19).
- the second chain hoist 5 of the drawing machine 1 in this embodiment has an identical structure as the first chain hoist 4.
- the second chain hoist 5 also has a front sprocket 23 and a rear sprocket 24, the front sprocket 23 rotating about a rotation axis 25 and the rear sprocket 24 about an axis of rotation 26. Both the front sprocket 23 and the rear sprocket 24 rotate during the transport of the elongate workpiece 2 in the direction of rotation 27 (only exemplarily shown on the rear sprocket 24).
- a second link chain 28 of the drawing machine 1 is driven by means of the front chain wheel 23 and the rear chain wheel 24.
- the second link chain 28 also has chain elements 29, which are hinged together in chain links 30 by means of connecting members 31.
- each of the chain wheels 18, 19, 23 and 24 of the drawing machine 1 has its respective sprocket circumference 32 Sprocket teeth 33 on.
- the chain elements 14 of the first articulated chain 13 and the chain elements 29 of the second articulated chain 28 are designed as tabs in this drawing machine 1 (explained by way of example with reference to FIGS. 3 to 7) to which the respective drawing tools 17 are fastened.
- the sliding and supporting zones 35 on which the contact surfaces 34 of the individual chain elements 14, 29 of the link chains 13 and 28 are supported, essentially extend in a main pulling region 36 of the drawing machine 1 both on the first chain hoist 4 and on the first chain hoist 4 second chain hoist 5 and can be realized in itself by means known from the prior art measures.
- the main pulling region 36 in this exemplary embodiment lies between the front sprocket 18 and the rear sprocket 19 or between the front sprocket 23 and the rear sprocket 24.
- means of this drawing machine for adjusting the distance between the two chain trains 4 and 5, to account for different tool diameter.
- means of this drawing machine for applying the contact pressure between the sliding and support zones 35 and the frame 3. for these purposes, for example, hydraulic arrangements or He ⁇ bel, eccentric pins or wedges are used. It is understood that by such measures, both a distance adjustment and the contact forces can be realized.
- the drawing machine 101 shown in FIG. 2 has a drawing machine frame 103 on which a first chain hoist 104 and a second chain hoist 105 are arranged.
- the first chain hoist 104 can be moved vertically in the drawing machine 101 according to the double arrow direction 140 compared to a drawing line 110.
- the second chain hoist 105 is correspondingly perpendicular to the drawing level 110 according to the double arrow directions 141 publishers. In this way, the drawing machine can be adapted to different thicknesses and applied a required contact pressure.
- the drawing plane indicated by the reference numeral 110 extends in the present case perpendicularly into the plane of the paper or out of the plane of the paper.
- the first chain hoist 104 has a first link chain 113, which is driven by means of a front sprocket 118 and a rear sprocket 119 and rotates in the first chain hoist 104.
- the front sprocket 118 rotates about a rotation axis 120 and the rear sprocket 119 about a rotation axis 121.
- the first articulated chain 113 has drawing tools 117 which are precisely matched to the drawn material to be transported.
- the drawing tools 117 are arranged directly on perpendicular to a circumferential direction 127 extending connecting members 131 of the first link chain 113, which also connect the tabs of a plate chain, not shown, arranged.
- each pulling tool 117 is arranged on two such connecting members 131. Forces acting on the first link chain 113 in the drawing plane 110 are absorbed by sliding and cutting zones 135 of the drawing machine 101.
- the second hoist 105 also includes a front sprocket 123 and a rear sprocket 124, the front sprocket 123 being rotatably mounted on a rotation axis 125 is while the rear sprocket 124 is rotatably mounted on a rotation axis 126.
- a second link chain 128 is driven, which rotates on the second chain link 105.
- the drawing tool 117 of the second link chain 128 acts in the region of the drawing plane 110 on the one hand with the drawn material and on the other hand with drawing tools 117 of the first link chain 113 of the first chain train 104.
- the second chain link 105 likewise comprises sliding and supporting zones 142.
- the first chain hoist 204 shown in FIG. 3 of a drawing machine otherwise substantially corresponding to the arrangements of FIGS. 1 and 2 essentially comprises a front sprocket 218 and a rear sprocket 219 with which a link chain 213 is driven.
- this first chain hoist 204 has a follower roller device 250, on whose follower rollers 251 the articulated chain 213 is supported, in particular when, starting from the pull level 210, contact forces 252 act on the link chain 213.
- a main drawing region 236 of the drawing machine essentially extends in the region of the follower roller device 250.
- the contact forces 252 arise when a frictional connection is produced between drawing stock (not shown here) and the articulated chain 213 by means of drawing tools 217 and a contact pressure force of known arrangements a machine frame (similar to the racks 3 and 103 of Figures 1 and 2) is applied via the idler rollers on the hinge chain 213.
- each drawing tool 217 is fastened to lugs 253 (numbered here only by way of example) or chain elements 296 of the link chain 213 formed from these lugs 253 and lugs arranged parallel thereto.
- the chain elements 296 are ver ⁇ connected by means of connecting members 231 with each other and with adjacent chain elements 297, which are also formed from tabs.
- the tab 253 is an outer tab of the articulated chain 213, which is articulated via the connecting member 231 at least to an inner tab 254 of the chain element 297.
- the outer tabs 253 of the chain elements 296 are beyond the workpiece side slightly higher than the other tabs of this chain element 296 formed so that hier ⁇ can be secured laterally by the tools.
- connecting lugs 286, 287 can be defined on the lugs 253, 254 as those regions which are arranged in the vicinity of the connecting member 231 and form the joint therewith.
- a peculiarity of the present tabs 253, 254 can be seen in the fact that they are plan-formed on the sides 255 facing the sprockets 218, 219 so that they engage with the sprockets 218, 219 on the follower rollers 251 the follower roller device 250 lie over a large area auf ⁇ . Due to the large contact surfaces between the follower rollers and the plane-shaped side 255, the contact forces 252 are transmitted particularly well from the articulated chain 213 to the follower roller device 250.
- the tabs 253 cooperate with sprocket teeth 256 of the sprockets 218 and 219 such that the tabs 253 engage in receiving portions 257 of the sprockets 218, 219.
- this mechanism is explained with regard to the front sprocket 218.
- an outer tab 258 of the articulated chain 213 engages in one of the receiving areas
- the outer flap 258 is positively connected to the sprocket 218 so that driving forces from the sprocket 218 to the link chain 213 can be advantageously transmitted.
- the outer flap 253 is additionally provided by an outer sprocket tooth 261 of the sprocket 218 and secondly by an inner sprocket tooth (not here) flagged) of the sprocket 218 flanked.
- the outer flap 253 receives an extremely stable guidance in the area of the front sprocket 218, so that even particularly strong forces can not cause the outer flap 254 to break out of the receiving area 257 of the front sprocket 218.
- the front sprocket 218 is rotatably supported on a rotation axis 220. The same applies of course to all other tabs and teeth of the link chain 213.
- the rear sprocket 219 has an identical structure to the front sprocket 218 and is rotatably mounted on a rotation axis 221.
- first sprocket tooth rows 265 and second sprocket tooth rows 266 can be seen particularly well on the rear sprocket 219, with both the first sprocket rows 265 and the second sprocket teeth rows 266 having sprocket teeth 256 spaced apart from each other.
- the first sprocket teeth rows 265 and the second sprocket teeth rows 266 extend transversely to a circumferential direction 222 of the sprockets 218 and 219.
- the sprocket teeth rows 265, 266 of the sprockets 218 and 219 are substantially aligned with the axis of rotation 220 and with the axis of rotation 221, respectively, to which sprocket 218 or 219 the sprocket rows 265 and 266 belong.
- the sprocket teeth 256 of the first chain sprocket row 265 are offset relative to one another in this exemplary embodiment with respect to sprocket teeth 256 of the second sprocket row row 266, as can be seen immediately.
- the sprocket 318 illustrated in FIG. 4 and FIG. 5 is formed in this exemplary embodiment from 19 individual sprocket blades 370 (numbered here only by way of example), while the sprockets described above have conventionally been designed as solid gears. All of the sprocket blades 370 used here are identical and are mounted together on a rotation axis 320 such that the plurality of sprocket blades 370 form first sprocket tooth rows 365 and second sprocket tooth rows 366 of the toothed wheel 318. The individual sprocket blades 370 are rotated by means of first clamping means 372 and second clamping means 373 and by means of securing bolts 395.
- first sprocket wheels and second sprocket blades are twisted at an angle to one another to the sprocket 318 such that a free space 374 is formed between the first sprocket rows 365 and the second sprocket rows transverse to the direction of rotation of the sprocket 318 and, for example, the first sprocket rows 365 around Arc segment 371 each spaced vonein ⁇ other.
- the individual sprocket teeth 356 of the sprocket tooth rows 365 and 366 are each spaced apart from each other by the amount of the thickness 375 of a sprocket tooth 356 and, in the present case, one of the sprocket blades 370.
- the sprocket blades 370 herein have a thickness which is identical to the thickness 375 of sprocket teeth 356.
- the sprocket teeth 356 of the first sprocket row 365 and the sprocket teeth 356 of the second sprocket set 366 are offset from one another.
- a respective receiving area 357 for chain elements 314 (numbered here only by way of example) of a joint chain 313 is accordingly provided.
- a pulling tool 317 is attached at a total of ten adjacent tabs 314 (exemplified bezif ⁇ fert) of the hinge chain 313, each forming a chain element 396.
- Each of the ten tabs 314 corresponds for its part to a receiving area 357 provided for this purpose, which are each formed between sprocket teeth 356 of two adjacent first sprocket rows 365.
- the sprocket teeth 356 of the second sprocket rows 366 take over substantially stabilizing functions for the straps of a further chain element 397, which in each case engage in a receiving area 357 between two sprocket teeth 356 of two first sprocket teeth rows 365.
- the articulated chain 313 is guided particularly well with respect to the sprocket 318.
- All the chain elements 396, 397 of the articulated chain 313 are connected with their adjacent chain elements 397, 396 via links 316 in an articulated manner.
- the chain link 415 shown in FIG. 6 consists of a first chain element 496, which comprises a first left tab 480, a block 489 and a first right tab 481, a second chain element 497, which has a second left tab 482 and a second link right tab 483, and a link 416.
- the chain is then continued according to a mirror image. It is understood that in an alternative embodiment instead of a separate connecting member and integrally configured with the respective chain elements connecting elements, such as joint shells, sliding bolts or the like, can be used.
- first left chain member 480, second left chain member 482 and link 416 a left hinge portion 484, whereas another component group “first right chain member 481, second right chain member 483 and link 416” forms a right hinge portion 485 of the chain link 416.
- the first chain member 396 still includes the block 489 which serves as a tool holder and is secured to the link 416 by means of a first connecting pin 486, a second connecting pin 487 and a third connecting pin 488.
- a first connecting pin 486, 487 and 488 Via the connecting pins 486, 487 and 488, pulling forces at three spaced connecting points 490 (here only exemplarily characterized) are glided directly into the connecting member 416, so that the pulling forces are transferred more homogeneously to the connecting member 416 and into the chain , As a result, a better load on the link 416 is achieved.
- shearing forces occurring at the connection points 490 are distributed in accordance with the number of connection points 490 and introduced more easily into the connection member 416.
- the tool holder 489 does not necessarily have to be connected to two chain links or to two connecting links 416. If this is not the case, the tool holder is merely fastened to a chain joint or connecting link 416, so that the forces present in the chain are not conducted via the tool holder. Only the individually occurring on a tool pulling forces are then introduced via the respective tool holder 489 in the corresponding link 416 and thus in the chain. In this case, the tool holder 489 is not part of the chain itself, so that it is then in the arrangement of Figure 6 is a tab chain and not a block-tab chain. In such an arrangement, it is then advantageous regardless of the other features of the present invention for a more uniform force distribution that the forces are applied to the connecting member 416 via a plurality of connecting pins 486, 487, 488.
- pins can be defined at the ends of the tabs 480, 481, 482, 483, as has already been clarified in FIG. 3 on the basis of the exemplary embodiment illustrated there.
- the above-described joint regions 484, 485 offer themselves for this purpose.
- the tools can also be fastened exclusively to the tabs 480, 481, 482, 483 or additionally to the tabs 480, 481, 482, 483. It is also conceivable in the embodiment of FIG. 6 between the connecting pin 486 and 487 or 487 and 488 each tabs, similar to the tabs 482, 483, or appropriate kauffy pin to arrange.
- the follower roller carrier 550 carries follower rollers 551, on which a first articulated chain 513 or a second articulated chain 528 are supported. Such an arrangement can in particular be used in conjunction with the arrangement shown in FIG.
- the first chain hoist 504 and the second hoist 505 are identical in this embodiment.
- individual identical components or identical subassemblies are only given by way of example in the present case.
- the first articulated chain 513 consists of chain elements 596, which are connected by means of connecting links 516 articulated to chain elements 597.
- a pulling tool 517 is connected via a Schwalben ⁇ tail connection 586 with the chain elements 596 and secured by means of lateral elevations 589 of the outer tabs of the chain elements 596.
- a tool attachment can be particularly easily realized.
- An elongated workpiece 502 of the drawing plane 510 is transported by means of the first articulated chain 513 and an identical second articulated chain 528.
- the transport direction is directed into the plane of the paper.
- the chain elements 596 and 597 each have planar surfaces on the tool side, which are interrupted at individual points.
- the tools can support themselves well on these surfaces, so that the contact forces are distributed extremely uniformly.
- the tools 217, 317, 517 can be designed to be shorter than the chain elements 596 in the circumferential direction of the chains.
- the tools can then, as shown in FIG. 7, rest both on the chain elements 596 and on the chain elements 597.
- tools can also be fastened or provided directly on the chain elements 597.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004031843A DE102004031843A1 (de) | 2004-06-30 | 2004-06-30 | Ziehmaschine |
| PCT/DE2005/001145 WO2006002613A1 (de) | 2004-06-30 | 2005-06-28 | Ziehmaschine sowie verfahren zum ziehen eines länglichen werkstücks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1761348A1 true EP1761348A1 (de) | 2007-03-14 |
Family
ID=34972948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05766208A Withdrawn EP1761348A1 (de) | 2004-06-30 | 2005-06-28 | Ziehmaschine sowie verfahren zum ziehen eines länglichen werkstücks |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7937980B2 (de) |
| EP (1) | EP1761348A1 (de) |
| CN (1) | CN101014426A (de) |
| DE (2) | DE102004031843A1 (de) |
| WO (1) | WO2006002613A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101943A1 (en) * | 2014-01-03 | 2015-07-09 | Danieli & C.Officine Meccaniche S.P.A. | Intermediate chain for drawing assemblies of drawing machines |
| FI3122757T3 (fi) | 2014-02-28 | 2023-10-10 | Hangzhou Dac Biotech Co Ltd | Varautuneita linkkereitä ja niiden konjugointikäyttötapoja |
| DE102018111731A1 (de) | 2017-05-26 | 2018-11-29 | Sms Group Gmbh | Raupenzugziehmaschine und Ziehverfahren |
| DE102019106362A1 (de) | 2019-01-04 | 2020-07-09 | Sms Group Gmbh | Verfahren zum Wechsel des Kaliberbereichs einer Kettenglieder umfassenden Ziehkette einer Raupenzugziehmaschine sowie Raupenzugziehmaschine |
| CN114914455B (zh) * | 2022-05-16 | 2024-04-16 | 荣烯新材(北京)科技有限公司 | 一种集流体箔片表面微造型装置以及方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE148593C (de) | ||||
| US1447644A (en) | 1922-03-30 | 1923-03-06 | Whitney Mfg Company | Silent chain sprocket |
| US3945547A (en) | 1970-04-03 | 1976-03-23 | Wean United Inc. | Tractive apparatus |
| FR2318350A1 (fr) | 1975-07-17 | 1977-02-11 | Lignes Telegraph Telephon | Perfectionnements aux dispositifs de tirage pour machine de cablerie |
| DD148593A5 (de) * | 1980-01-17 | 1981-06-03 | Vni Pk I T I Kabelnoi Promy | ZUGVORR&CHTUNG ZUM KONTINUIERLICHEN ZIEHEN VON FORMERZEUGNISSEN |
| JPH0464756A (ja) | 1990-07-02 | 1992-02-28 | Michio Kuroki | 歯車 |
| IT1252904B (it) | 1991-12-24 | 1995-07-05 | Danieli Off Mecc | Gruppo tiro per trafila |
| US5427580A (en) * | 1992-05-19 | 1995-06-27 | Borg-Warner Automotive, Inc. | Phased chain assemblies |
| JPH06300116A (ja) | 1993-04-15 | 1994-10-28 | Oriental Chain Kogyo Kk | チェーンスプロケット |
| DE19857781A1 (de) * | 1998-12-04 | 2000-06-08 | Mannesmann Ag | Kettenziehmaschine als Antriebsaggregat beim Walzen oder Ziehen von Stangen und Rohren |
| DE19857288A1 (de) | 1998-12-13 | 2000-06-15 | Dieffenbacher Gmbh Maschf | Verfahren und Anlage zur Herstellung von faserverstärkten Kunststoffmassen |
| DE19947806B4 (de) * | 1999-10-05 | 2014-12-11 | Sms Meer Gmbh | Kettenziehmaschine zum kontinuierlichen Ziehen von Ziehgut |
| DE10122340A1 (de) * | 2001-05-08 | 2002-11-28 | Peter Kalkenings | Kettenziehmaschine zum kontinuierlichen Ziehen von Ziehgut, insbesondere stangen- oder rohrförmigen Ziehgut |
| DE10141638C2 (de) | 2001-08-24 | 2003-08-28 | Sms Meer Gmbh | Ziehvorrichtung für eine Ziehmaschine, insbesondere für die Herstellung von Stangen und Rohren aus Metall |
-
2004
- 2004-06-30 DE DE102004031843A patent/DE102004031843A1/de not_active Withdrawn
-
2005
- 2005-06-28 WO PCT/DE2005/001145 patent/WO2006002613A1/de not_active Ceased
- 2005-06-28 US US11/631,254 patent/US7937980B2/en not_active Expired - Fee Related
- 2005-06-28 CN CNA2005800285132A patent/CN101014426A/zh active Pending
- 2005-06-28 DE DE112005001503T patent/DE112005001503A5/de not_active Withdrawn
- 2005-06-28 EP EP05766208A patent/EP1761348A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006002613A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006002613A1 (de) | 2006-01-12 |
| US7937980B2 (en) | 2011-05-10 |
| US20070245795A1 (en) | 2007-10-25 |
| CN101014426A (zh) | 2007-08-08 |
| DE102004031843A1 (de) | 2006-01-26 |
| DE112005001503A5 (de) | 2007-05-24 |
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