Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
  • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
  • B21B39/08—Braking or tensioning arrangements
• • 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
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/003—Regulation of tension or speed; Braking
• • 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
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
• • 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
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
  • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
  • B21C47/3458—Endlessly revolving chain systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H20/00—Advancing webs
  • B65H20/06—Advancing webs by friction band
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H23/00—Registering, tensioning, smoothing or guiding webs
  • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
  • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
  • B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
  • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
  • B21B39/006—Pinch roll sets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2404/00—Parts for transporting or guiding the handled material
  • B65H2404/30—Chains
  • B65H2404/35—Arrangement of chains facing each other for forming a transport nip
  • B65H2404/351—Arrangement of chains facing each other for forming a transport nip the nip being formed between elongate members bridging two chains running synchronously and in parallel
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2555/00—Actuating means
  • B65H2555/10—Actuating means linear
  • B65H2555/13—Actuating means linear magnetic, e.g. induction motors

Definitions

• the invention relates to entrainment systems in a device for pulling or braking metal strips or sheets, preferably in strip lines between endlessly circulating chain systems.
• the invention is based on the problem, on the one hand, of expanding the possible uses of the known brake scaffold and, on the other hand, of achieving a specific behavior which is different for the various tasks, in particular for the entry, exit and driving conditions of the carriage-like roller blocks in the belt driving area.
• the inlet and outlet must be made elastic. From- Formation takes place in such a way that a high degree of elasticity is achieved in the horizontal direction (tape direction). Furthermore, a slight squeezing is achieved with the invention, whereby the flexing work in the inlet and outlet can be decisively reduced.
• the coating width corresponds to the chain pitch. The arrangement is between the rollers. With this training it is possible that a closed contact surface is available in the driving area. This training requires the synchronous running of the upper to the lower car chain.
• a low hardness of the coating is preferably chosen for a relatively thick coating.
• the metal strip is embedded, so that the shape errors of the metal strip in cross-section and the band ripples are easily compensated.
• the free spaces created allow the squeezed volume of the elastic coating to flow in a targeted manner.
• the coating receives a filler, e.g. a flat steel. This ensures that the squeezing can be specifically adapted to the functional task by means of the form factor, while the desired inclination of the coating in the pulling direction can take place almost without restriction.
• a filler e.g. a flat steel.
• a sensible application is that only one rotating car chain is designed as a rotating table. Forces are introduced into the belt by means of permanent magnets or electromagnets in order to be able to apply braking or tensile forces. Magnetizable metal strips are pulled onto the protective belt of the wagon chain by the attractive forces and driving forces are generated in accordance with the ⁇ value. Another possibility is to equip two revolving rollers with permanent magnets or with electromagnets and to build up a parallel, linear, magnetic traveling field through the applied magnetic poles, which acts as a linear, rotating eddy current brake in the electrically conductive strip material.
• Metal strip is heated when the energy is supplied conductively or inductively via the circulating system. This effect can also be used in galvanic or other processes.
• the strip thickness, the surface quality, the metallic structures and the like can be checked very precisely, because the metal strip and the test head can work in a fixed position at identical speed for a certain time.
• the brake scaffold or the control frame can be extended by a belt tension measuring frame. Here these aggregates hang in leaf springs. The reaction forces of the strip tension are recorded in an unadulterated manner via measuring cells. This measuring system is able to measure only the horizontal forces with a high repeatability and can, depending on the measuring range, be set to a few Newtons.
• the design of the electric linear drive has the advantage that the loading of the hinges of the chain carriage links only results from the deflecting and centrifugal forces, while the loads from the band pulls to be applied only act in the driving area.
• the dimensioning of the hinges can thus be limited to the deflection and centrifugal forces. This minimizes wear.
• the driving path can be designed in such a way that current is supplied to the metal strip conductively or inductively. This solution is preferably used for galvanic processes, for heating the belt, for measuring processes on the belt and for building up magnetic fields that are used to introduce restraining forces. Electrically conductive materials are introduced into the carriage-like roller blocks for the power supply. The current can be switched on specifically when the roller blocks pass through the driving area.
• the energy supply can be switched off at any time.
• the belt tension can be regulated by the opposing speed of the chain carriage and the restraining force by changing the frequency.
• the rotating carriage chain system has the task of carrying the tape and ensuring a fixed tape distance to the measuring heads or magnetic coils.
• the dwell time for the test process can be set by specifying the contact distance, since the metal strip and the carriage chain system have the same speed in this area.
• the application is suitable for strip thickness measurements, tension measurements in the strip, surface scans and other test systems.
• the currents can be supplied either from the inside or laterally from the outside. Switching on and off takes place after the chain carriage has reached the parallel line or before it leaves the parallel line.
• individual magnets or solenoids that span the entire segment area can be supplied with voltage.
• the tape is pulled onto the chain carriage via the magnetic attraction forces. Depending on these forces and the ⁇ -value, belt pulls can be applied via the chain carriage system. This is also possible using permanent magnets. This training is suitable for magnetizable metal strips.
• Fig. 2 is a front view of a brake scaffold with control
• Figure 3 is a side view of a brake scaffold with control and measuring frame, partially cut.
• the arrangement shown has the great advantage that the individual strip strips are supplied tangentially to the take-up reel 1, 2 without a deflection roller.
• the retractions built up in the brake scaffold 5, 6 are brought to the point of impact without loss of deflection and without relative movements. This creates ideal conditions for an even specific strip tension distribution.
• the tangential inflow is continuously adjusted.
• the number 1 shows the winding mandrel of the winding reel, 2 the wound coil, 3 the third separation for the strip strips, 4 the metal strip, 5 the upper circulation roller, 6 the lower circulation roller, 7 the second separation and 8 the first separation, in order to feed the metal band from the loop 9 to the brake stand at right angles. 10 is the splitting shear.
• the special feature of this solution according to FIG. 2 is that the mechanical linear drive is moved by an electrical linear drive 19.
• This solution it is possible to introduce large strip tension into the metal strip in the shortest possible way.
• the carriage chain 11 can be made simpler.
• the entire drive chain consisting of a shaft with the sprockets, cardan shaft, gearbox, clutch and electric motor is not required. Much higher speeds can be easily mastered with high belt tension.
• Number 12 shows the elastic segment coating, 13 the coating carrier, 14 the running rail.
• the brake stand 20 is suspended in the control frame 21 by means of leaf springs 24.
• the belt tension can be measured by means of load cells 23 without being distorted by deflections with a very low hysteresis and very high repeatability.
• the braking and pulling frame 20 consists of the stand, oppositely arranged revolving rollers 5 and 6, which are installed in guides 18 of the stand 20 and of which the upper revolving roller 5 is turned against the lower revolving roller 6 by means of piston rods 18 which are acted upon by cylinders.
• the chains 11 and 11a are composed of a large number of coupled, carriage-like roller blocks, which extend over the entire width of a belt 4 arriving in the direction of the arrow 25 and roll on at least two support wheels 26 and side guide rollers 27 on a track or laterally on this lay.
• the track is led to a driving area in which the opposite roller blocks 11 grip the belt 4 on both sides and clamp between them.
• the coating supports 13 are provided with an elastic coating 12.
• the coating width corresponds to the chain pitch T and extends within the axes of the support wheels 26 of two adjacent, ie, successive blocks. The axes simultaneously form a defined pivot point.
• the coating 12 is designed by free spaces 30 in such a way that a particularly elastic adaptation of the squeezed coating becomes possible on the inlet and outlet sides.
• the crushing height of the coating should be as low as possible in order to keep the flexing work as low as possible.
• the coating must have a very high degree of elasticity in the direction of strip tension in order to be able to before allowing belt speeds for the individual slit strips, as shown in Fig. 6.
• FIG. 4 shows the position of the coating with a low band tension
• FIG. 5 with a high band tension.
• the coating supports 13 are equipped with permanent magnets 33 or magnetic coils 34 which build up eddy current fields, then electrically conductive strips, in particular strips made of aluminum, copper, and their alloys can be used to initiate strip pulls.
• the carriage chain is usually moved against the direction of the belt. The length of the contact path can be adjusted as required.
• the distance between the permanent magnets 33 or coils 34 can be kept constant in that the supports of the revolving rollers are set by the elastic blocks 35.
• the metal strip 4 floats between the permanent magnets 33 or the coils 34 due to the attractive forces.
• the protective belt 36 is also shown. If the cylinders 18 are replaced by spindle drives, the distance can be adjusted and the machine is given an additional control element.
• the coating supports 13 are equipped with permanent magnets 33 or magnetic coils 34 which build up magnetic fields, then gnetizable metal tapes, can be used to initiate tape pulls.
• the carriage chain is moved in the direction of the belt. The length of the contact path can be adjusted as required.

Priority Applications (1)

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• 1999
  • 1999-11-10 AT AT03014045T patent/ATE294034T1/de active
  • 1999-11-10 CA CA002317432A patent/CA2317432C/fr not_active Expired - Fee Related
  • 1999-11-10 EP EP99971746A patent/EP1054743B1/fr not_active Expired - Lifetime
  • 1999-11-10 DE DE59911996T patent/DE59911996D1/de not_active Expired - Lifetime
  • 1999-11-10 BR BR9906891-5A patent/BR9906891A/pt not_active IP Right Cessation
  • 1999-11-10 US US09/600,091 patent/US6502734B1/en not_active Expired - Fee Related
  • 1999-11-10 WO PCT/EP1999/008606 patent/WO2000027554A1/fr active IP Right Grant
  • 1999-11-10 AT AT99971746T patent/ATE243573T1/de not_active IP Right Cessation
  • 1999-11-10 EP EP03014045A patent/EP1350576B1/fr not_active Expired - Lifetime
  • 1999-11-10 DE DE59906096T patent/DE59906096D1/de not_active Expired - Fee Related
  • 1999-11-10 ES ES99971746T patent/ES2203253T3/es not_active Expired - Lifetime
  • 1999-11-10 ES ES03014045T patent/ES2242125T3/es not_active Expired - Lifetime
• 2002
  • 2002-11-14 US US10/294,878 patent/US6585140B2/en not_active Expired - Lifetime

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