WO1997002202A1 - Method and arrangement for adjusting a spooler - Google Patents
Method and arrangement for adjusting a spooler Download PDFInfo
- Publication number
- WO1997002202A1 WO1997002202A1 PCT/FI1996/000221 FI9600221W WO9702202A1 WO 1997002202 A1 WO1997002202 A1 WO 1997002202A1 FI 9600221 W FI9600221 W FI 9600221W WO 9702202 A1 WO9702202 A1 WO 9702202A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- distribution
- pitch
- distributor
- spool
- spooler
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2848—Arrangements for aligned winding
- B65H54/2854—Detection or control of aligned winding or reversal
- B65H54/2869—Control of the rotating speed of the reel or the traversing speed for aligned winding
- B65H54/2872—Control of the rotating speed of the reel or the traversing speed for aligned winding by detection of the incidence angle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/10—Command input means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/20—Display means; Information output means
Definitions
- the invention relates to a method for adjusting the distribution of a spooler in order to distribute during the spooling a cable or the like on the surface of a spool in a closely packed even layer by means of a distributor of the spooler, in which method the pitch of the distribution of the cable or the like is given a set value and the information necessary for adjusting the distribution is measured from the spooler.
- the invention further relates to an arrangement for adjusting a spooler.
- the purpose of the invention is to provide a method and an arrangement by means of which the drawbacks associated with the prior art can be eliminated. This is achieved with the method and arrangement according to the invention.
- the method according to the invention is characterized in that the advance of the distributor during one rotation of the spool is measured from the spooler, and that the result of the measurement is compared with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is adjusted so that the advance approaches the set pitch.
- the arrangement according to the invention is in turn characterized in that the measuring means are arranged to measure the advance of the distributor during one rotation of the spool, and that the arrangement comprises means arranged to compare the measurement result with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is arranged to be adjusted so that the advance approaches the set pitch.
- the primary advantage of the invention is that the adjustment of the distribution can be performed without information of the rotational velocity of the spool. This makes it simpler to perform the adjustment in connection with such drives that do not comprise the sensing of the rotational velocity as a standard element .
- Another advantage is that the advance the distributor makes during one rotation of the spool can be measured by means of the position sensing provided permanently in the distributor. The distributor must always comprise the position sensing for the purpose of identifying the width of the distribution. This sensing can be employed in the present invention also for the other use mentioned above, whereupon no separate rotational sensing is needed, as stated above.
- Figure 2 illustrates the characteristic features of the arrangement according to the invention.
- Figure 1 shows the characteristic features of a typical prior art arrangement .
- Reference numeral 1 denotes a spool and reference numeral 2 denotes generally the rotating apparatus of the spool 1, comprising a motor 2a.
- Reference numeral 3 in Figure 1 denotes a distributor and reference numeral 4 denotes a setting device with which the pitch N of the cable or the like 5 is given a set value.
- Figure 1 also shows the main functions of the arrangement by means of arrows.
- distribution speed reference set value of distribution pitch x spool rpm measurement
- Figure 2 shows the characteristic features of a preferred embodiment of the arrangement according to the invention.
- Reference numeral 11 denotes a spool and reference numeral 12 denotes generally the rotating apparatus of the spool 11, comprising a motor 12a.
- Reference numeral 13 denotes in Figure 2 a distributor and reference numeral 14 denotes a setting device with which the pitch N of the cable or the like 15 is given a set value.
- Figure 2 also illustrates with arrows the main functions of the arrangement with the same principle as in Figure 1.
- the distributor 13 moves rectilinearly in the direction of the axis of the spool 11.
- the movement of the distributor can be implemented for example by means of a servo drive 17.
- the advance of the distributor 13 during one rotation of the spool is measured from the spooler.
- the principle of measuring the advance of the distributor 13 is shown in Figure 2 by means of .the arrow M ⁇ .
- the result of the measurement is compared with the distribution pitch set by means of the setting device 14, whereupon the distribution pitch and the advance during one rotation should be equal. If they are not, the distribution speed is changed so that the advance approaches the set distribution pitch.
- the afore ⁇ mentioned comparison is performed with means 16.
- the advance of the distributor 13 during one rotation of the spool 11 can be measured for example in such a way that the rotation of the spool 11 is sensed with a separate limiting sensor which can be preferably the same limiting sensor that identifies the initial position of the spool 11.
- the arrangement of Figure 2 solves the problem related to the known technology, since by means of the invention the distribution pitch is adjusted exactly to the desired value, i.e. the distribution speed is always correct without information concerning the rotational velocity of the spool. This helps avoid the installation of the rotational velocity sensing on the spool axis in drives wherein the sensing is not a standard element, as stated above.
- distribution speed reference constant coefficient x (set value of distribution pitch - advance of distributor)
- the operation of the distributor 13 can be provided with better dynamics, however, by adding at least inaccurate information of the possible speed of the distributor 13 to the distribution speed reference.
- inaccurate information can be derived for example from the rotational velocity reference of the spool 11 or, in connection with frequency converters, from the actual value of the frequency of the spool's rotating motor.
- the inaccurate signal provides more dynamics when the speed of the distributor changes, and the method according to the invention ensures that the distribution pitch is set exactly to the correct value after the change.
- the distribution speed can be obtained in the following manner:
- distribution speed reference (constant coefficient x (set value of distribution pitch - advance of distributor) ) + inaccurate signal
Landscapes
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a method and an arrangement for adjusting the distribution of a spooler in order to distribute during the spooling a cable or the like on the surface of a spool (11) in a closely packed even layer by means of a distributor (13) of the spooler, in which method the pitch of the distribution of the cable or the like (15) is given a set value, and the information necessary for adjusting the distribution is measured from the spooler. In order to reduce the amount of the installation work related to sensing, the advance of the distributor (13) during one rotation of the spool is measured (Me) from the spooler and the result of the measurement is compared with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is adjusted so that the advance approaches the set pitch.
Description
Method and arrangement for adjusting a spooler
The invention relates to a method for adjusting the distribution of a spooler in order to distribute during the spooling a cable or the like on the surface of a spool in a closely packed even layer by means of a distributor of the spooler, in which method the pitch of the distribution of the cable or the like is given a set value and the information necessary for adjusting the distribution is measured from the spooler. The invention further relates to an arrangement for adjusting a spooler.
The above-described methods and arrangements are rather well known in the cable industry at present . In known arrangements, the adjustment of the distribution is based on the measurement information obtained from the rotational velocity of the spool. An example of typical known arrangements is the arrangement disclosed in Finnish patent 47976. The drawback of the known arrangements is that in order to adjust the distribution, the exact rotational velocity of the spool must be known. This means in practice that the system must comprise the sensing and measurement of the rotational velocity. If the spooler does not comprise this sensing as a standard operation, it must be installed on the spool axis. This naturally increases the costs.
The purpose of the invention is to provide a method and an arrangement by means of which the drawbacks associated with the prior art can be eliminated. This is achieved with the method and arrangement according to the invention. The method according to the invention is characterized in that the advance of the distributor during one rotation of the spool is measured from the spooler, and that the result
of the measurement is compared with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is adjusted so that the advance approaches the set pitch. The arrangement according to the invention is in turn characterized in that the measuring means are arranged to measure the advance of the distributor during one rotation of the spool, and that the arrangement comprises means arranged to compare the measurement result with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is arranged to be adjusted so that the advance approaches the set pitch.
The primary advantage of the invention is that the adjustment of the distribution can be performed without information of the rotational velocity of the spool. This makes it simpler to perform the adjustment in connection with such drives that do not comprise the sensing of the rotational velocity as a standard element . Another advantage is that the advance the distributor makes during one rotation of the spool can be measured by means of the position sensing provided permanently in the distributor. The distributor must always comprise the position sensing for the purpose of identifying the width of the distribution. This sensing can be employed in the present invention also for the other use mentioned above, whereupon no separate rotational sensing is needed, as stated above.
The invention will be described below in greater detail by means of the prior art and a preferred embodiment of the invention, shown in the accompanying drawing, in which
Figure 1 illustrates the characteristic features of a typical prior art arrangement, and
Figure 2 illustrates the characteristic features of the arrangement according to the invention. Figure 1 shows the characteristic features of a typical prior art arrangement . Reference numeral 1 denotes a spool and reference numeral 2 denotes generally the rotating apparatus of the spool 1, comprising a motor 2a. Reference numeral 3 in Figure 1 denotes a distributor and reference numeral 4 denotes a setting device with which the pitch N of the cable or the like 5 is given a set value. Figure 1 also shows the main functions of the arrangement by means of arrows.
The known arrangement according to Figure 1 operates in such a way that the pitch of the distribution is entirely dependent on the speed of the distribution. The distribution speed in turn is directly dependent on the rotational velocity of the spool 1 and on the value set for the pitch of the distribution by means of the setting device 4 in the following way:
distribution speed reference = set value of distribution pitch x spool rpm measurement
The principle of the rpm measurement of the spool 1 is shown in Figure 1 by means of the arrow Mr. The distribution speed reference in the arrangement of Figure 1 always requires an accurate result of the measurement of the rotational velocity of the spool 1. The system must thus always comprise the sensing and measurement of the rotational velocity. If the spooler does not comprise this sensing function as a constant element, it must be installed separately.
Figure 2 shows the characteristic features of a preferred embodiment of the arrangement according to
the invention. Reference numeral 11 denotes a spool and reference numeral 12 denotes generally the rotating apparatus of the spool 11, comprising a motor 12a. Reference numeral 13 denotes in Figure 2 a distributor and reference numeral 14 denotes a setting device with which the pitch N of the cable or the like 15 is given a set value. Figure 2 also illustrates with arrows the main functions of the arrangement with the same principle as in Figure 1. The distributor 13 moves rectilinearly in the direction of the axis of the spool 11. The movement of the distributor can be implemented for example by means of a servo drive 17.
According to the essential idea of the invention, the advance of the distributor 13 during one rotation of the spool is measured from the spooler. The principle of measuring the advance of the distributor 13 is shown in Figure 2 by means of .the arrow Mβ. The result of the measurement is compared with the distribution pitch set by means of the setting device 14, whereupon the distribution pitch and the advance during one rotation should be equal. If they are not, the distribution speed is changed so that the advance approaches the set distribution pitch. The afore¬ mentioned comparison is performed with means 16. The advance of the distributor 13 during one rotation of the spool 11 can be measured for example in such a way that the rotation of the spool 11 is sensed with a separate limiting sensor which can be preferably the same limiting sensor that identifies the initial position of the spool 11.
The arrangement of Figure 2 solves the problem related to the known technology, since by means of the invention the distribution pitch is adjusted exactly to the desired value, i.e. the distribution speed is always correct without information concerning the rotational
velocity of the spool. This helps avoid the installation of the rotational velocity sensing on the spool axis in drives wherein the sensing is not a standard element, as stated above. The distribution speed of the arrangement of
Figure 2 can be obtained for example in the following manner:
distribution speed reference = constant coefficient x (set value of distribution pitch - advance of distributor)
The operation of the distributor 13 can be provided with better dynamics, however, by adding at least inaccurate information of the possible speed of the distributor 13 to the distribution speed reference. Such inaccurate information can be derived for example from the rotational velocity reference of the spool 11 or, in connection with frequency converters, from the actual value of the frequency of the spool's rotating motor. In such a case, the inaccurate signal provides more dynamics when the speed of the distributor changes, and the method according to the invention ensures that the distribution pitch is set exactly to the correct value after the change. The distribution speed can be obtained in the following manner:
distribution speed reference = (constant coefficient x (set value of distribution pitch - advance of distributor) ) + inaccurate signal
The above-described embodiment is not intended to limit the invention in any way, but the invention can be modified quite freely within the scope of the claims. It is therefore clear that the arrangement according to
the invention or the details thereof do not necessarily have to correspond exactly to those shown in the figure, but other kinds of arrangements are also possible. Drives, controls, the input of set values, etc, can be implemented with any technique known per se. Even though the embodiment described above is related to a cable, it is clear that the invention is not restricted merely to cables, but it can also be applied in connection with ropes, cable wires, wires and other similar products.
Claims
1. A method for adjusting the distribution of a spooler in order to distribute during the spooling a cable or the like on the surface of a spool (11) in a closely packed even layer by means of a distributor (13) of the spooler, in which method the pitch of the distribution of the cable or the like (15) is given a set value and the information necessary for adjusting the distribution is measured from the spooler, c h a r a c t e r i z e d in that the advance of the distributor (13) during one rotation of the spool is measured (M„) from the spooler, and that the result of the measurement is compared with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor and the set distribution pitch, the distribution speed is adjusted so that the advance approaches the set pitch.
2. A method according to claim 1, c h a r a c¬ t e r i z e d in that when the measurement result is compared with the distribution pitch, the information dependent on the possible speed of the distributor (13) is added thereto.
3. A method according to claim 2, c h a r a c t e r i z e d in that the information dependent on the possible speed of the distributor (13) is derived from the rotational velocity reference of the spool (11) or from the actual value of the spool's rotating motor (12a) .
4. An arrangement for adjusting the distribution of a spooler in order to distribute during the spooling a cable or the like on the surface of a spool (11) in a closely packed even layer by means of a distributor (13) of the spooler, the arrangement comprising a setting device (14) with which the pitch of the distribution of the cable or the like (15) can be given a set value, and measuring means with which the information necessary for adjusting the distribution can be measured from the spooler, c h a r a c t e r i z e d in that the measuring means are arranged to measure (Mβ) the advance of the distributor (13) during one rotation of the spool, and that the arrangement comprises means (16) arranged to compare the measurement result with the set distribution pitch, whereupon if there is a difference between the measured advance of the distributor (13) and the set distribution pitch, the distribution speed is arranged to be adjusted so that the advance approaches the set pitch.
5. An arrangement according to claim 4, c h a r a c t e r i z e d in that the measuring means comprise a limiting sensor arranged to sense also the initial position of the spool (11) .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU54013/96A AU5401396A (en) | 1995-07-06 | 1996-04-23 | Method and arrangement for adjusting a spooler |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI953341 | 1995-07-06 | ||
| FI953341A FI97794C (en) | 1995-07-06 | 1995-07-06 | Method and arrangement for spool adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997002202A1 true WO1997002202A1 (en) | 1997-01-23 |
Family
ID=8543750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI1996/000221 WO1997002202A1 (en) | 1995-07-06 | 1996-04-23 | Method and arrangement for adjusting a spooler |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU5401396A (en) |
| FI (1) | FI97794C (en) |
| WO (1) | WO1997002202A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991019664A1 (en) * | 1990-06-15 | 1991-12-26 | Nokia-Maillefer Oy | Arrangement in a coil winding machine for a cable or a similar strandlike product |
-
1995
- 1995-07-06 FI FI953341A patent/FI97794C/en not_active IP Right Cessation
-
1996
- 1996-04-23 WO PCT/FI1996/000221 patent/WO1997002202A1/en active Application Filing
- 1996-04-23 AU AU54013/96A patent/AU5401396A/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991019664A1 (en) * | 1990-06-15 | 1991-12-26 | Nokia-Maillefer Oy | Arrangement in a coil winding machine for a cable or a similar strandlike product |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN, Vol. 7, No. 98, M-210; & JP,A,58 022 265 (FUJIKURA DENSEN K.K.), 9 February 1983. * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5401396A (en) | 1997-02-05 |
| FI953341A0 (en) | 1995-07-06 |
| FI97794C (en) | 1997-02-25 |
| FI97794B (en) | 1996-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0208788A1 (en) | Speed control system for servo motors | |
| US5072399A (en) | Machine tool control | |
| JPS61146644A (en) | Vehicle running control device | |
| EP0763713A3 (en) | Method and apparatus for calibration of a distance sensor in a vehicle navigation system | |
| EP0725490A3 (en) | Control apparatus for recording and reproducing apparatus | |
| US4157488A (en) | Apparatus and method for controlling a tape drive to maintain a substantially constant linear tape velocity | |
| US5502377A (en) | Method and apparatus for measuring rotary movement of a shaft | |
| EP0314800A1 (en) | Device for controlling speed of servo motor | |
| US6408989B2 (en) | Vehicle brake system having a sensor to measure movement | |
| EP0807084B1 (en) | Procedure and apparatus for controlling the hoisting motor of an elevator | |
| US5711470A (en) | Apparatus and method for adjusting the lateral position of a moving strip | |
| WO1997002202A1 (en) | Method and arrangement for adjusting a spooler | |
| GB2136582A (en) | Measuring electrically parameters of a cable being laid | |
| US5277378A (en) | Numerically controlled tape takeup system having device for automatic calibration of conversion formula | |
| US4430606A (en) | Sheet feeding apparatus | |
| US5796635A (en) | Device and process for linear measurement of fiber sliver thickness or mass | |
| EP0267966B1 (en) | Positioning system | |
| EP0588403B1 (en) | Method and apparatus for driving a gauge | |
| ATE27134T1 (en) | MEASURING AND CONTROL DEVICE FOR LOADS ATTACHED TO ROPES, PARTICULARLY FOR THEATER POINT TRAINS. | |
| EP0932026B1 (en) | Method and apparatus for defining the position of an actuator | |
| US6653620B2 (en) | Method for evaluating a signal in an optoelectronic position measuring device | |
| CN1208782A (en) | Textile machine roll transmission device for producing argyle lag cylinder | |
| US20030038232A1 (en) | Method for evaluating the signals of an optoelectronic displacement or angle measuring device and implementation of said method | |
| EP1742021B1 (en) | A readhead for an optical measuring device. | |
| US7057364B2 (en) | Actuation system comprising a digital position sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 122 | Ep: pct application non-entry in european phase |