Method for coiling a coiled product, control installation, computer software product, and coiling machine

Abstract

A coiled product, a control installation, computer software product, a coiling machine and method for coiling a coiled product, wherein the coiling tension is settable to an envisaged coiling tension, particularly to a constant coiling tension via either a setting unit and/or a change in the respective rotational speed of either a coil body and/or a supply roll, a characterizing aspect being the equalization of the free length of the coiled product, where the free length is the spacing of the first bearing point of the coiled product on the coil body from the second bearing point of the coiled product on a deflection roller such that the free length change is equalized by the setting unit and/or by a variation of the respective rotational speed so that coiling tension of a product coiled onto the coil body can be set in a simple, rapid, and precise manner.

Claims

1. A method for coiling a coiled product from a supply roll onto the coil body, the method comprising: providing the coiled product from the supply roll; and winding the coiled product onto the coil body, a coiling tension of the coiled product being adjustable to an envisaged coiling tension provided by a control installation including at least one of a computer unit and a regulation unit; wherein at least one of (i) a rotational speed of the coil body is controlled or regulated to set the coiling tension and (ii) the coiling tension is set to the envisaged coiling tension by a setting unit.

2. The method as claimed in claim 1, wherein the envisaged coiling tension is constant.

3. The method as claimed in claim 2, wherein the setting unit has a variable coiled-product accumulator.

4. The method as claimed in one of claim 2, wherein the setting unit, between a third bearing point of the coiled product on the supply roll and a first bearing point of the coiled product on the coil body, sets a length of the coiled product to a constant length.

5. The method as claimed at least in claim 4, wherein the setting unit equalizes a change in a free length.

6. The method as claimed at least in claim 4, wherein the setting unit equalizes the change in the free length in conjunction with the coiled-product accumulator.

7. The method as claimed in claim 1, wherein the setting unit has a variable coiled-product accumulator.

8. The method as claimed in claim 1, wherein the setting unit has an adjustable coiled-product brake.

9. The method as claimed in claim 1, wherein the coiling tension is set to the envisaged coiling tension by a regulator installation.

10. The method as claimed in claim 1, wherein one of (i) an encoder and (ii) a force transducer determines the coiling tension.

11. The method as claimed in claim 10, wherein the encoder comprises an encoder on a dancer roller.

12. The method as claimed in claim 1, wherein at least one parameter for the setting unit is calculated when coiling.

13. The method as claimed in claim 1, wherein the at least one parameter comprises a position of an actuator.

14. The method as claimed at least in claim 1, wherein the setting of the coiling tension is performed via rotational speed of the coil body.

15. The method as claimed in claim 1, wherein the coiled product comprises wire or a film and the coil body has a non-circular cross section.

16. A non-transitory computer-readable medium encoded with a computer program executed by a computer unit that causes a coiling machine to begin coiling a coiled product from a supply roll onto a coil body, the computer program comprising: program code for providing the coiled product from the supply roll; and program code for winding the coiled product onto the coil body, a coiling tension of the coiled product being adjustable to an envisaged coiling tension provided by a control installation including at least one of a computer unit and a regulation unit; wherein at least one of (i) a rotational speed of the coil body is controlled or regulated to set the coiling tension and (ii) the coiling tension is set to an envisaged coiling tension by a setting unit.

17. A control installation for a coiling machine, the control installation comprising: a control unit including at least one of a computer unit and a regulation unit; a setting unit; and a plurality of drives; wherein the control unit aided by at least one of (i) the plurality of drives and (ii) the setting unit is configured to: provide a coiled product from a supply roll; and wind the coiled product onto the coil body, a coiling tension of the coiled product being adjustable to an envisaged coiling tension; wherein at least one of (i) a rotational speed of the coil body is controlled or regulated to set the coiling tension and (ii) the coiling tension is set to the envisaged coiling tension by the setting unit.

18. A coiling machine including the control installation as claimed in the claim 17.

19. The coiling machine as claimed in claim 17, wherein the coiling machine coils wire or a film.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be described and explained in more detail hereunder by means of figures. The figures in particular illustrate potential embodiments of the invention. The features shown in the figures can be combined to form new embodiments, without departing from the scope of the invention, in which:

(2) FIG. 1 shows a coiling machine;

(3) FIG. 2 shows a further coiling machine;

(4) FIG. 3 shows a further coiling machine;

(5) FIG. 4 shows a further coiling machine;

(6) FIG. 5 shows a further coiling machine; and

(7) FIG. 6 is a flow chart of the method in accordance with the invention.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

(8) FIG. 1 shows a coiling machine. The coiling machine has a setting unit EE. The setting unit EE can be configured as a coiled-product brake, as a coiled-product accumulator 5, and/or as a dancer roller 3. Also shown is a control installation SE, where the control installation SE comprises a computer unit RE and/or a regulating unit 9. The control installation SE serves for controlling or regulating the drive M for the coil body 1. The computer unit RE provides the envisaged coiling tension F-nom. The computer unit RE preferably provides the settings for a respective actuator 3a, 5a and/or the first and the second rotational speed W1, W2. The control installation SE, via the aforementioned variables, controls or regulates the motors M of the supply roll 4 and/or of the coil body 1. The control installation optionally controls or regulates a respective actuator 3a, 5a. The coil body in the coiling procedure rotates at a first rotational speed W1. The first rotational speed W1 corresponds to the first temporal derivation of the alignment a of the coil body 1. The coil body 1 is wrapped with the coiled product D. The coiled product D passes the coiling machine at a speed v. The coiled product D in the coiling procedure has a coiling tension F. The coiling tension F with the aid of the drive M of the coil body 1, with the aid of the drive or of the motor M for the supply roll 4, respectively, is set to an envisaged coiling tension F-nom. The supply roll has a second rotational speed W2.

(9) The coiled product D is guided over a deflection roller 2. The coiled product D is coiled onto the coil body 1 by the deflection roller 2. The coiled product D leaves the deflection roller 2 at a second bearing point P2. The coiled product D contacts the coil body 1 at the first bearing point P1. The free length x extends between the first bearing point P1 and the second bearing point P2. The free length x corresponds to the length of the coiled product D between the deflection roller 2 and the coil body 1. The free length x periodically changes during the coiling procedure. Moreover, the second bearing point P2 on the deflection roller 2 changes in a likewise periodic manner.

(10) FIG. 2 shows a further coiling machine. The coiling machine has a dancer roller 3. The dancer roller 3 serves for equalizing the coiling tension F of the coiled product D. The coiled product D emanates from the supply roll 4 and passes the dancer roller 3. The coiled product D is coiled onto the coil body 1 via a deflection roller 2.

(11) The dancer roller 3 is assigned an encoder and/or an actuator 3a. The encoder determines the position d of the dancer roller 3. The encoder can also be configured as a force transducer and can thus directly determine the coiling tension.

(12) The change in the free length x is preferably equalized with the aid of the dancer roller 3, where the dancer roller 3 equalizes the change in the free length x with the aid of an actuator 3a, for example. The coiling tension F is set to a constant value on account of a constant spacing between a first bearing point P1 and a third bearing point P3. The third bearing point P3 is the point at which the coiled product D leaves the supply roll 4. The third bearing point P3 is preferably located on the supply roll 4. On account of a constant length of the coiled product between the first bearing point P1 and the third bearing point P3, the coiling tension is likewise constant.

(13) FIG. 3 shows a further coiling machine. The coiling machine comprises a coil body 1, a deflection roller 2, a dancer roller 3, and a supply roll 4. The speed of the coiled product D, in particular emanating from the supply roll 4, is constant. The coiled product D in the embodiment shown here runs at a constant speed v from the supply roll 4. The coiled product D passes the free length x at a non-constant speed v (vconst). The dancer roller 3 serves for equalizing the speed v of the coiled product D. The second rotational speed W2 of the supply roll 4 is constant. In particular, the second rotational speed W2 does not depend on the respective alignment a (from 0 to 360). This means that the speed v of the coiled product D coming from the supply roll 4 is constant.

(14) The position d of the dancer roller 3 can be actively set with the aid of the actuator 3a.

(15) Furthermore, the first rotational speed W1 is not constant but has a periodic profile. This is indicated in the respective diagram. The approximately periodic profile of the first rotational speed W1, being the rotational speed of the coil body 1, is calculated via the shape of the non-circular cross section of the coil body 1. The periodic variation in the first rotational speed W1 at a constant second rotational speed W2 of the supply roll leads to an equalization of the coiling tension F of the coiled product D in the coiling procedure.

(16) Alternatively, the supply roll 4 can also be driven at a periodic rotational speed W2. In this instance, the first rotational speed W1 can be set to a constant value.

(17) The dancer roller 3 is optionally assigned an actuator 3a (not shown). Minimal variations in the coiling tension F can be equalized by the actuator 3a and the dancer roller.

(18) A control installation SE (not shown) preferably serves for controlling or regulating the first rotational speed W1.

(19) FIG. 4 shows a further coiling machine. The coiling machine has a coil body 1 that is coiled with two coiled products D. The first rotational speed W1 of the coil body 1 is constant.

(20) The coiling machine has in each case one deflection roller 2. The respective coiled product D is deflected onto the coil body 1 on the respective deflection roller 2.

(21) Moreover, one dancer roller 3 is present for each respective coiled product D. The respective dancer roller 3 is in each case assigned an encoder for determining the respective position d of the respective dancer roller 3. The position d of the respective dancer roller is almost constant. The dancer roller 3 is in each case optionally equipped with one actuator 3a (not shown).

(22) In order for the respective coiling tension D of the respective coiled product D to be equalized, a variation in the respective second rotational speed W2 is performed. The variation in the coiling tension F as a function of the alignment a of the coil body 1 (or of the supply roll 4) can be set as the envisaged coiling tension F-nom.

(23) The speed v of the respective coiled product D emanating from the supply roll 4 is not constant. The speed v of the respective coiled product D is based on the alignment a of the coil body 1.

(24) FIG. 5 shows a further coiling machine. The coiling machine has a coiled-product accumulator 5 and a dancer roller 3. The dancer roller 3 and/or the coiled-product accumulator 5 forms(s) the setting unit EE. The setting unit EE serves for setting the coiling tension F of the coiled product D. The and/or relationship is indicated by the dashed border of the respective elements 3, 5.

(25) The coiling machine comprises a control installation SE. The control installation SE has a regulator installation 9. The regulator installation 9 serves for regulating the capacity of the coiled-product accumulator 5. The capacity of the coiled-product accumulator 5 is set via an actuator 5a. To this end, the actuator 5a changes the position d of a deflection roller of the coiled-product accumulator 5. Force transducers can furthermore determine the coiling tension F of the coiled product D.

(26) An analogous construction of the setting unit EE can be performed via the dancer roller 3. The dancer roller 3 can be coupled to an encoder. By way of determining the position d of the dancer roller 3, the encoder determines the coiling tension F.

(27) The coiling machine moreover comprises a control installation SE. The control installation SE comprises a computer unit RE and a regulator installation 9. The regulator installation 9 serves for regulating the position of the respective actuator 5a and/or of the rotational speed W1, W2.

(28) The control installation SE furthermore has inputs for the position d of the respective dancer roller 3 and/or for the capacity of the coiled-product accumulator 5.

(29) The control installation SE serves for setting the coiling tension to an envisaged coiling tension F, in particular to a constant envisaged coiling tension F-nom. The first and the second rotational speed W1, W2 are predefined by the control installation SE.

(30) The rotational speeds W1, W2 are preferably constant, and the equalization of the coiling tension F is performed by the respective actuator 5a. The actuator 5a herein is set such that the free length x is equalized by the change in the capacity of the coiled-product accumulator 5.

(31) In sum, the disclosed embodiments of the invention relate to a method for coiling a coiled product D, a control installation SE, a computer software product, and a coiling machine. The coiling tension by way of a setting unit EE and/or by way of a change in the respective rotational speed W1, W2 of a coil body 1 and/or of a supply roll 4, can be set to an envisaged coiling tension F-nom, in particular to a constant coiling tension F. A characterizing aspect is the equalization of the free length x of the coiled product, where the free length x is the spacing of the first bearing point P1 of the coiled product on the coil body 1 from the second bearing point P2 of the coiled product on a deflection roller 2. The change in the free length herein is equalized by the setting unit and/or by a variation of the respective rotational speed W1, W2. On account of the invention, the coiling tension F in the coiling of a coiled product D onto a coil body can be set in a simple, rapid, and precise manner.

(32) FIG. 6 is a flowchart of the method for coiling a coiled product D from a supply roll 4 onto the coil body 1. The method comprises providing the coiled product D from the supply roll 4, as indicated in step 610.

(33) Next, the coiled product D is wound onto the coil body 1, as indicated in step 620. Here, the coiling tension F of the coiled product D is adjustable to an envisaged coiling tension F-nom.

(34) In accordance with the invention, either the a rotational speed W1, W of the coil body 1 is controlled or regulated to set the coiling tension F and/or the coiling tension F is set to the envisaged coiling tension F-nom by a setting unit EE.

(35) Thus, while there have been shown, described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements and/or method steps shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.