DE2120550A1 - Process for the machining of extruded material such as wire rod - Google Patents

Description

Th. Kieserling Ss Albrecht 'April 26, 1971 Solingen Fat.Abt.Koe / Huck / Bch I at ent anme! Dung file K 168

Process for the machining of extruded material such as wire rod

The invention relates to a method for machining strand cut such as Wire rod, in which the wire withdrawn from a reel is first straightened, then the machining machine fed and the straightening and machining priority by means of a train exercising device through the straightening device and cutting machine is pulled.

The aim of the new process is to peel the one to be peeled with less structural effort for the entire system To straighten the wire without any pretreatment and to calibrate it so that it is as circular as possible Cross-section of the wire is ensured and thus chip loss is as low as possible. In addition, it should be possible to change dimensions quickly.

Ea is already a wire peeling system with the peeling machine upstream and downstream reel device known, in which the withdrawn from a reel Wire is calibrated by pulling it through a die before peeling. The peeling machine is followed by a revolving sighting and polishing machine. The peeled and polished Wire can then optionally be drawn through another drawing die and then reeled up v / earth.

209847/0208

<Th. Kieserling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Huck / Bcn

Patent application File K 168

A disadvantage of this system or procedure is that a certain length of wire is initially unpeeled must be guided to the take-up reel until this reel can generate the necessary tensile force that is required to pull the wire through the peeling machine and straightener to be able to. It would be possible to connect the beginning of the wire with a thin wire that goes through the first drawing die, the peeling machine, the straightening and polishing machine and the second drawing die and set in the IClemrce device of the tension reel in order to then pull the wire through the first drawing die, the peeling machine, by means of this pulling device the trimming and loling machine and if necessary to pull through the second drawer. With each change of dimension or each time a new wire bundle is peeled off, extensive work is required Preliminary work is necessary because one end of the wire is first led to the tension reel got to. Another disadvantage is that by the straightening or polishing body, which in a circumferential Frame are arranged, twisting of the wire cannot be ruled out. In addition, the wire to be drawn must be pretreated through the drawing die (USA patent 2 394 381) ./

In another known wire peeling system with the Peeling machine upstream and downstream .neten reel device is a straightening device for straightening the wire between the decoiler and the peeling machine provided, in which the straightening bodies

209847/0208

Th. Kieserling & Albrecht April 26, 1971 Solingen. council department Koe / Huck / Boh

Fat elimination file K 168

if arranged in a circumferential frame · Apart from the fact that a calibration of the to be peeled Wire is not possible with this straightening device, there is also the disadvantage with this system, that it is recommended to use the wire to protect the straightening unit and the hard metal tools to pickle, outside the wires with smaller diameters and lower strength and high toughness properties be preferred so that the increase in strength that can be achieved by drawing causes twisting of the wire in the surrounding straightening frame as far as possible. In this system too, pretreatments of the wire to be peeled (pickling or drawing) is necessary. Another disadvantage is that in the event of a malfunction within the system, the continuous feed of the wire is interrupted in the Richtrahnicn Any wire located must be cut out, because the UmIaufrichtmaschine due to its large Hate can't shut down anytime soon and the wire gets hot and twisted. Another The disadvantage is that it is not possible to calibrate the wire and thus an undesirably high amount of chips and a reduced throughput cannot be avoided (Draht 15 (1964) No. 2, pages 57 kis 60).

The professional world has obviously not recognized that the deficiencies described can be eliminated in a simple manner can be, if one for the calibration and straightening of the wire itself known facilities with loosely running, stationary rollers and the beginning of the wire to be peeled, for example

209847/0208 - 4 -

Th. Kieeerliag & Albrecht Solingen

Pat ent sowing! Dung

2) 20550

April 26, 1971 Fat.Abt.Koe / Huck / Bch File K 168

with the help of the uncoiler through the opened Calibration and straightening rolls up to those with a lower than the actual operating speed The peeling machine's feed rollers run during peeling, then the calibrating and straightening rollers like this sets that initially a slight reduction in cross-section of the wire takes place, which only through further Progression of these roles reaches their target value, when the beginning of the wire is detected by the pulling device and the wire then with the required feed speed is pulled through the calibration and straightening device and the cutter head · The feed rollers the peeling machine are known to be on their drive by means of an overrunning clutch shafts arranged so that when the wire passes through the pulling device at the required feed rate is pulled through the calibration and straightening rollers and the peeling machine, the Sinzucsrolle can be rotated correspondingly faster. Since the beginning of the wire is initially at a lower feed rate is passed through the peeling machine, 'the cutter head can be with you from the start rotate at the required speed in each case, v / eil the cutting performance is not greater than with max.permissible feed of the wire after adjusting the calibration and straightening rollers twice has been reduced so far in cross-section that the stock removal rate at the beginning is not greater than is at full feed speed.

The main advantage of this new process and the resulting system are that the

209847/0208

£ h. Kiteerling & Albrecht April 26, 1971 ' Solingen Pat.Abt.Koe / Huok / Bch

Patent application file K 168

Wire does not have to be pretreated because hot-rolled wire with sharp kinks through the calibration and straightening unit is perfectly calibrated, straightened and at the same time partially descaled « In addition, the already known advantage can be achieved by calibrating the wire that chip loss is as low as possible. As mentioned above, the chip loss by calibrating the wire with a drawing die, but this again assumes that that the wire must be pretreated «In addition, the adjustable calibration and calibration rollers To coat the diameter range that is not available with the drawing die.

Compared to the known systems with straightening bodies arranged in a circumferential frame the system according to the invention or the new procedure is also characterized by the fact that in the event of malfunctions within the system, through which the feed of the wire is no longer given, no malfunctions the straightening unit occur because it contains only loosely running, stationary rollers.

Preferably, two three-roller stands are provided as the calibration and straightening unit for carrying out the method, the groups of rollers being arranged offset from one another by> .o °. Operating series have shown that even wires with many sharp kinks can be perfectly calibrated and straightened. The calibration and straightening devices are according to tinem

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Th. Kieaerling & Albrecht April 26, 1971 Solingen Fat.Abt.Eoe / Huck / Bch

Patent application file K 166

Another feature of the invention with devices for preselecting and automatic setting as well Display of the respectively required or achieved working position of the roller groups provided, thus with a change of dimension the respective working positions the roller group can be easily adjusted by the operator

With reference to the drawing in FIGS. 1 to 6, an exemplary embodiment for a system for implementation of the new procedure shows is d <sr © K structure and Operation explained in more detail below »The

Fig. 1 shows a system for carrying out the method according to the invention in a side view.

The .

Pig. 2 is a section on the line A-B of FIG. 1 on an enlarged scale.

In

FIG. 3 is a section along the line C-D of FIG.

the

FIG. 4 shows the transmission arrangement on an enlarged scale along the line E-F of FIG the feed rollers for the peeling machine.

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Th. Kieeerling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Huck / Bch

Patent application file K 168

- 7 the

Fig. 5 is a segment of the overrunning clutch along the line G-H of FIG. 4.

In

Fig. 6 are shown schematically the tools through which the individual The working positions of the calibration and straightening rollers can be preselected

The system consists of a decoiler 1, a separating _{device 2 t,} a calibration and straightening device 3, a peeling machine 4 with the feed roller set and the pull-out roller set 6 and a take-up reel 7 when viewed in the direction of the wire.

The decoiler is for receiving the wire rings equipped with a roller 8, which is driven by a chain drive 9 via a gear 10 from a motor is driven. A pair of rollers 12 is used to separate the wire rings and the wire running off is from a loosely rotatable roller 13 »the one with a print center Oil cylinder 14 is connected, can be pressed against roller 8. .

The cutting device, equipped with scissors, is used to cut the beginning of the wire with sharp kinks an introduction of the wire into the calibration and straightening device 3 would not allow cutting "

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Th. Kieaerling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Hück / Bch

Patent application file Κ 166

-8th -

The calibration and straightening device 3 essentially consists of two mounted on a subframe 15 Roller frames 16 and 17 »which are axially displaceable by means of the threaded spindle 18 and the threaded rod 19 are, whereby the distance between the roller stands to each other is variable lot. Each of the roller devices 16 and 17 carries three arranged offset from one another by 120 ° Rollers 20, each in a fork lever 22 pivotable around a fixed point 21 on each one Axis 23 loosely rotatably mounted. The rollers of the Roller scaffolding 17 are opposite the roles of the Hollen scaffolding 16 arranged offset from one another by 60 ° in the vertical plane, 00 that there is an overlap of the lateral roll gaps. With each axis 23 of the rollers 20 two tabs 24 are articulated, which are also articulated to a disk 25, which in turn is fixed to a threaded sleeve 26 is screwed. The axially displaceable but non-rotatable threaded sleeve stands above her Threaded part 26a with a riiatee 16 in the housing of the Rollegek rotatable, but not axially displaceable mounted gear 27 in Kingriff, which via the pinion 28 of a gear motor 29 with built-in Brake is drivable. When the gear wheel 27 rotates, the threaded sleeve 26 is moved axially and the rollers 20 are together via the tabs 24 towards one another or movable away from each other.

To control the calibration and straightening rolls 20, a pulse storage device is provided for each roll stand 16 and 17, respectively 44 provided with three coding switches

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Th. Kieserling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Huck / Bch

Patent application file K 168

45, 46, 47, the buttons 45a, 46a,, 47a for moving to the values set on the coding switches and the illuminated buttons 45b, 46b, 47b for acknowledging the position moved to and for possible correction of the roller position. A pulse generator 48, connected to the motor shaft 29a and connected to the pulse storage device 44 via the line 49, serves to emit pulses to the storage device. A limit switch 59 prevents the rollers 20 from being opened beyond a defined end position.

In front of the cutter head, not shown, of the peeling machine 4 the feed roller set 5 with the feed rollers 31 * 52 and 33, 34 is arranged, which, as beiopielßweise shown in Fig. 4, rotatable via the articulated shafts 31a, 32a and the gears 31b and 32b are. With the gear 32b and one in front of the cutting plane of Pig. 4 lying and therefore not The toothed wheel shown is the toothed ring 35 screwed to the outer ring 36a of an overrunning clutch in engagement, which can be driven via the inner ring 36b and the clamping bodies 36c as well as the shaft 37 The shaft 37 is in turn connected via a worm wheel 38 connected to it in a rotationally fixed manner and a worm 39 can be driven by a motor, not shown.

The toothed ring 35 is through the overrunning clutch 36 can only be driven on in direction of rotation 40 because the clamping bridge 3Cc when the shaft 37 rotates with the inner

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Th. Kieeerling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Huck / Bch

Patent application file K 168

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ring 36b in the direction of rotation 41 and a force 30 applied to the teeth of the toothed ring 35 clamp the inner ring 36b and the outer ring 36a together. If the toothed ring 35 with the outer ring 36a is rotated faster in the direction 40 than the shaft 37 with the inner ring 36b rotates in: direction 41, the force 30 is canceled or reversed, so that the clamping pieces 36c loosen and W so that the inner ring 36b can be overtaken by the outer ring 36a. When the direction of rotation is reversed, the transmission of a torque through the overrunning clutch is not possible. The 7 / @ lle 37 is therefore non-rotatably connected to an Elektromagnetschexb® M-2 , which, when switched on, can transmit the torque to the toothed ring 35 via the pin washer 43.

The pull-out roller set 6 arranged behind the cutter head corresponds to the pull-in roller set 5 », however can in most cases be dispensed with a drive of this roller set 6, which then only serves to absorb the cutting moment from the cutter head P.

The take-up reel 7 is equipped with a clamping device for the wire and brings the actual wire Tensile force for the wire.

The functioning of the system according to the invention i3b is as follows

Then lying on the roller 0 dor decoiler 1 Wire coil 51 is driven by the driven roller

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Th.Iiteerling & Albrecht April 26, 1971 Sollug η Pat.Abt.Kot / Huok / Bch Patentuuael & unjc act »K 168

rotates and the beginning of the wire 5Yes is through the separating device 2 through between the calibration and Straightening rollers 20 pushed. The opening of the rollers was previously determined by the value set on the Coding switch 45 gate selected. The opening is there the knot still ao large that the wire without further · by the advance force applied by the orphan 8 until it can be pushed between the intake rollers 35 »34 and 31, 32 · Then the intake rollers employed and the Walee 8 is uncoupled and their Drive motor 11 switched off. According to the possible tensile force of the feed rollers, dit Calibrating and straightening rollers 20 closed to the extent that straightening the wire is necessary, with a slight reduction in cross-section at the same time. For better illustration are In Flg. 6 only two instead of three straightening rollers are shown. The adjustment of the rollers 20 can take place automatically or is triggered manually, By pressing the button 46a, the motor 29 is switched on and the brake 29b is released, over Since the motor pinion 28 and the gear 27, the threaded sleeve 26 is displaced axially in the direction of the arrow 52, whereby the rollers 20 are closed so far (partial direction 52a) until the number of pulses de Encoder 48 corresponds to the value set on coding switch 46. At the coincidence of the V / ert a pulse is given to turn off the motor 29 and apply the brake 29b and at the end this infeed movement of the rollers 20, the glow lamp of the LED light 46b lights up in order to

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2Ί20550

Th. K ^ eserling & Albrecht Solingen

Patent application

April 26, 1971 Pat.Abt.Koe / Huck / Bch File K 168

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ment of the roles 20 to display. The wire is now driven by the feed rollers into the rotating cutter head, the knives of which are set to the nominal diameter of the wire and the peeling process begins. After the beginning of the wire has reached the take-up reel p , it is automatically inserted into the tongs of the reel % , whereby the longitudinal movement of the wire triggers the automatic clamping and at the same time a limit switch actuated by the wire tip is actuated, which once drives the reel 7 and on the other hand, it triggers a pulse through which the calibration and straightening rollers are moved into their final working position, which is preselected on the coding switch 47. Furthermore, the drive for the feed rollers 31 to 34 is switched off by a time relay. The tensile force is now only applied by the take-up reel, the drum of which rotates at a much higher peripheral speed (operating speed) than the peripheral speed of the intake rollers 31 »32, 33 and 34 - which is large due to its own drive. Since the overhaul clutch 36 is built into the drive of the draw-in roller set 5, the pull-in rollers can rotate at this greater peripheral speed transferred to them by the wire without affecting their own drive.The wire is now pulled off the collar 51, calibrated, straightened and, after peeling, on the Winding reel 7 wound up into a new bundle 53. When the wire end has left the calibration and calibration device 3, a

209847/0208

2) 20550

Th. Kieserling & Albrecht April 26, 1971 Solingen Pat.Abt.Koe / Huck / Boh Fatentanmelduns file K 168

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known pulse generator (touch device, light barrier etc.) given a pulse that releases the brake 29a and the motor 29 turns on so that the threaded sleeve 26 is moved axially in the direction of arrow 54 until the limit switch 50 is actuated, which the! .Ίο-gate 29 turns off again and the brake 29a again indent. The rollers 20 are in the filing direction 54a moves until it reaches the "open position" which corresponds to the open position which is determined by the coding switch 45. After that When the wire end has also passed the peeling machine 4, the knives and the feed and pull-out roller set can be used 5 can be brought into the open position.

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209847/0208

Claims (1)

Th. Kieaerling & Albrecht 26, April 1971 Solingen Pat.Abt.Koe / Huck / Bch patent application file K 168 - 14 claims Process for the machining of strand material such as 7 / alzdraht, in which the Wire withdrawn from a reel is initially straightened, then fed to the cutting machine and in the straightening and machining process by means of a pulling device pulled through the straightening device and cutting machine is, characterized in that when using a calibration and straightening device (3) with loosely running, stationary rollers (20) and a peeling machine (4) with the rotating cutter head upstream and downstream, known by means of an overrunning clutch (36) intake rollers (31 »32, 33» 34-) arranged on their drive shafts The beginning of the wire (51a) with the calibration and straightening rollers (20) open to the one with a smaller one feed rollers (31 »32, 33 »34 ·) advanced, then the calibration and straightening rollers are adjusted so that initially there is a slight reduction in the cross-section of the wire, which is only achieved by further adjusting of these rolls reaches their target value when the beginning of the wire is removed from the pulling device (7) detected and the wire with the required feed speed through the Kalibritrund Straightening device (3) and the cutter head is pulled. - $ 1 209847/0208 Th. Kieserling & Albrecht April 26, 1971 oolingen Fat. Abbot Koe / Huck / Bch patent application file K 168 Device for carrying out the method according to Claim 1, characterized in that two three-roller stands (16 - 17) are used as calibration and straightening equipment, whose roller groups are arranged offset to one another by 60 °. Device according to Claim 2, characterized by devices (45 to 47b) for preselecting soi.ie self-employed! and advertisements the required working position the roller groups of the roller stands (1G, 17) 4. Apparatus according to claim 3, characterized in that that with the shafts (29a) of the rotors (29) for setting the calibration and straightening rollers each have a lap pulse generator (48) connected is connected via a line (49) to a pulse storage device (44) stands that when a preselected number of pulses is reached, a switching pulse is sent via a line to switch off the motor and to switch on a brake that stops the motor (29b) releases. 209847/0208