EP3215445B1 - Device for winding strip-shaped material - Google Patents

Description

The invention relates to a device for winding strip-shaped material on at least one spool.

Band-shaped material is used in many ways in industry, e.g. to Manufacture contact elements in electrical engineering in large numbers by stamping. For this purpose, raw material, and in particular metal strips, are wound up in spools on tapes. Usually, not only the material processed by the production machine is wound up, it can also e.g. attach to a carrier strip and a release paper can separate adjacent windings from each other. The strip material can also be solid material, that is to say an unprocessed metal strip. Coming from a production machine such as a punching machine, a loop is usually provided which, especially when changing the bobbin, gives the winding device sufficient space and time to change from a filled bobbin to the next empty bobbin. For this purpose, an insertion channel is provided on the winding device, which is moved depending on the degree of filling of the spool. However, both the loop and the movement of the insertion channel can cause problems with increasing size of the stamped parts, since the band-shaped material then also becomes more rigid.

Especially for smaller coils is from the DE 10 2012 016 479 A1 or the DE 10 2013 000 808 A1 a winding device is known in which the material is wound on cardboard spools that are sucked onto holding elements before filling, thereby compensating for unevenness in the reusable cardboard spools. For this purpose, a pivotable support arm is provided which can be rotated through 180 ° about a vertical axis, in order thereby to change a spool into the winding device, while at the same time releasing another spool. Two opposing disks are arranged on the support arm. Furthermore, an arm which can be moved transversely to a feed lance and on which a further disk is arranged is provided. An empty coil is placed on the shaft of the support arm and sucked over the disc. This spool is then rotated 180 ° by means of the pivotable arm until it is in the area of the feed lance. In this position the movable arm is closed so that the further disc also comes into contact with the coil so that the other side wall of the coil can be sucked in through the further disc. The filling takes place in this state. When the bobbin is filled, the movable arm is again moved axially transversely to the feed lance and thus carries out a releasing movement, so that the full bobbin can then be swung out and the next empty bobbin can be swiveled in by means of the pivotable arm. The released coil can then be removed manually or with a robot for further processing.

From the utility model DE 20 2010 016 384 U1 a support arm which is movable and rotatable parallel to the coil axis and which feeds a coil removal segment to a reel mandrel is known. The closest prior art is that in document JP S58 116929 A viewed disclosed device.

Starting from this prior art, the present invention has for its object to provide a device for winding band-shaped material that can better deal with the conditions of rigid materials and larger weights of the band-shaped material.

This object is achieved by a device with the features of claim 1.

To release the bobbin, the support arm carrying the bobbin during filling is linearly movable parallel to the bobbin axis and transversely to the tape feed device for the tape-shaped material. The support arm thus also forms the release device for releasing the coil. The filled bobbin can thus be extended laterally out of the feed direction, which is basically predetermined by the outlet of the production machine, such as, for example, a punching machine, and can be transferred there, for example, to an industrial conveyor which feeds the bobbin for its further use. This is particularly important if the coils can no longer be handled manually, for example due to their weight. This can result in a spool weighing up to one ton, so that mechanical devices for transporting the spools and over and above the previously known lifting devices should preferably be used for reasons of accident safety and health care.

Due to the movement of the support arm, the machine itself becomes mobile and can therefore respond better to the manufacturing conditions. This applies to both the winding and the unwinding of the band-shaped material. To further increase this mobility, the support arm is also adjustable in height. This makes it possible to move the spool instead of the insertion channel when feeding the band-shaped material. The strip-shaped material can thus be fed from start to finish in the same feed direction or with the same feed angle. This is particularly advantageous in the case of rigid materials and also offers the advantage that the ratio of the release paper feed to the spool basically remains virtually unchanged, so that the release strip can be fed reliably. At the same time, an even material feed is guaranteed, so that the loop mentioned at the beginning and thus also the space required for this can be reduced as far as possible. If, however, the position of the spool is changed vertically relative to the release paper feed and the insertion channel, the opening angle changes, into which new material can then be introduced, so that an easier insertion at the start of the winding process is made possible.

Basically, the tape feed device is provided with an insertion channel, the inclination of which can be adjusted and locked relative to the spool. As a result, the tapes can also be inserted at an angle into the spool without being kinked during feeding. For this purpose, the tape feed device is optionally articulated.

The height of the support arm and / or the inclination of the insertion channel are preferably changed as a function of the fill level of the coil via a control device. This change can ensure that the feed direction or the feed angle of the strip-shaped material remains the same during the filling of the spool.

A plurality of support arms are preferably provided, which alternately transfer the coils in the feed direction and move them out of there to release them. This ensures a continuous supply of the band-shaped material supplied by the manufacturing machine during winding and / or unwinding.

Further advantages result from the subclaims and the following description of an exemplary embodiment.

Brief description of the figures

Fig. 1

eine dreidimensionale Darstellung einer Vorrichtung, die mit zwei Tragarmen zur Aufnahme von Spulen versehen ist, auf denen bandförmiges Material aufgewickelt werden kann,

Fig. 2

eine Ansicht der Vorrichtung gemäß Fig. 1 von vorne,

Fig. 3

eine Seitenansicht der Vorrichtung in Fig. 2 von links,

Fig. 4

eine Draufsicht auf die Vorrichtung gemäß Fig. 2.

The invention is explained in more detail below using an exemplary embodiment. Show it:

Fig. 1

3 shows a three-dimensional representation of a device which is provided with two support arms for receiving coils on which strip-shaped material can be wound,

Fig. 2

a view of the device according Fig. 1 from the front,

Fig. 3

a side view of the device in Fig. 2 from the left,

Fig. 4

a plan view of the device according to Fig. 2 ,

Detailed description of preferred embodiments

The invention will now be explained in more detail by way of example with reference to the accompanying drawings. However, the exemplary embodiments are only examples which are not intended to restrict the inventive concept to a specific arrangement. Before the invention is described in detail, it should be pointed out that it is not restricted to the respective components of the device and the respective method steps, since these components and methods can vary. The terms used here are only intended to describe special embodiments and are not used restrictively. If, in addition, the singular or indefinite article is used in the description or in the claims, this also applies to the majority of these elements, as long as the overall context does not clearly indicate otherwise.

The figures show a device for winding tape-like material on at least one spool 10. The winding of the tape-like material is understood to mean both winding and unwinding of the material, ie the Device can be used for both purposes. Ribbon material is mostly raw materials, such as metal strips, which were formed in the manufacturing machine arranged in front of the device according to the invention. Most of these are punching machines that, for example, produce contact elements for electrical engineering.

In a manner not shown, the band-shaped material comes from the production machine and is fed to a receiving region of the device according to the invention in the region of the band feed device 16. From there, the material reaches the coil 10, which rotates about the coil axis 13, via an insertion channel 17, which is usually immersed in the coil 10. For this purpose, a rotary drive 14 is provided, which is assigned to a support arm in the exemplary embodiment. In order to further protect the parts of the band-shaped material wound onto one another, a release paper can additionally be provided, which is also fed to the coil 10 via the release paper spool 20 and a release paper feed 22. The entire device is controlled by a control device 19 which is arranged in a control cabinet.

The coil 10 is arranged on a support arm 11 on a machine frame 12, two support arms being provided in the specific exemplary embodiment, which can alternately introduce coils in the feed direction by a transverse movement. For the configuration according to the invention, however, it is sufficient if only one support arm 11 is provided, but more than two support arms can also be used. The feed direction of the band-shaped material is predetermined by the transfer area of the production machine and continues on the device according to the invention via the insertion channel 17. The insertion channel can engage radially into the coil 10 and can also be designed to be telescopic. In principle, however, the insertion channel 17 can also be dispensed with.

The support arm 11 carrying the coil during filling can be moved along guide rails 21 by means of a linear movement device 15 transversely to this feed direction or to the insertion channel 17. The support arm 11 has a horizontal coil axis 13 for receiving the coil 10. A lifting drive 23 can also be provided on the support arm 11 in order to adjust the height of the support arm.

A release device is provided for releasing the coil 10 when the support arm 11 moves relative to the machine frame 12. According to the invention, this release device is formed by the linear movement device 15, which moves the support arm parallel to the spool axis 13 and transversely to the tape feed device 16 and thus horizontally. The support arm 11 thus becomes a release device at the same time. There is thus also the possibility that the support arm 11, as a unit standing alone on the machine frame, picks up a coil 10 and transports it to a new place of use or transfers it to another lifting device, for which purpose the lifting drive 23, if necessary, is advantageous.

In Fig. 1 The tape feed device 16 can be seen approximately in the center, which according to Fig. 3 has an insertion channel 17 which dips into the coil 10. The inclination of this insertion channel and, if appropriate, the tape feed device can be adjusted and ascertained relative to the spool 10. Preferably, the tape feed device 16 is articulated around a hinge 18 which is indicated in the drawing.

A control device 19 is provided in the control cabinet, which can change the height of the support arm 11 and / or the inclination of the insertion channel 17 as required. The height of the support arm 11 and the inclination of the insertion channel 17 are initially set as a function of the diameter of the coil 10 that is already filled with tape-like material when the coil is being filled, preferably taking care that the tapes can retract at an angle so that they are wound up do not kink on the coil 10. The more rigid the materials, the more carefully these materials have to be handled, which is possible with such a control device 19. Preferably, an attempt is made to adjust the ratio of the tape feed device 16 or insertion channel 17 and the transfer point of the tape-like material to the spool 10 by operating the control device or height adjustment so that the feed direction and preferably also the feed angle of the tape-like material during the filling of the spool 10 is as possible Beginning to end of the filling process or when unwinding the emptying process stays the same. This can be ensured by the fact that the coil gradually lowers or rises during filling by actuating the height adjustment via the lifting drive 23. The lifting device is designed as a height adjustment so that the height of the support arm 11 is adjustable via a spindle drive driven by the lifting drive 23.

Due to the height adjustability of the coil 10 on the support arm 11, the opening angle when feeding the material can also be influenced, which is particularly advantageous at the beginning of the winding. If the spool is positioned relative to the release paper feed and the feed channel e.g. Moving downward increases the opening angle into which new material can be introduced, so that it can be introduced more easily at the start of the winding process, and vice versa. The height of the spool axis 13 can thus be adjusted relative to the insertion channel 17 and / or relative to a release paper feed coming from the release paper spool 20.

However, this height adjustability is also particularly important when the spool is released by the transverse movement. In this case, the spool on the outside of the device can either be removed via a floor conveyor and transferred to the floor conveyor there after being released from the spool axis. For this purpose, either the floor conveyor can be adjustable in height or the spool can be placed on the floor or the floor conveyor via the support arm. The previously known hoists are no longer required for this.

If, as in the exemplary embodiment, a plurality of support arms are provided, these can alternately bring the spools into the feed direction of the strip material which is predetermined by the arrangement of the insertion channel 17. This ensures continuous operation without further ado.

LIST OF REFERENCE NUMBERS

10

Kitchen sink

11

Beam

12

machine frame

13

coil axis

14

rotary drive

15

Linear movement device

16

tape feeder

17

introduction channel

18

joint

19

control device

20

Release paper reel

21

guide rail

22

Release paper feed

23

Linear actuator

Claims (7)

1. A device for winding strip-shaped material onto at least one reel (10) comprising

   - a machine frame (12),

   - at least one support arm (11) which is movable relative to the machine frame (12) and has at least one horizontal reel shaft (13) for receiving the reel (10,

   - at least one rotary drive (14) for rotating the reel shaft (13),

   - a release device for releasing the reel (10) when the support arm (11) moves relative to the machine frame (12),

   - a strip-feeding device (16) for feeding the strip-shaped material,

   - wherein the support arm (11), which supports the reel during the filling procedure, at the same time forms the release device and wherein for releasing the reel, a linear movement device (15) is provided for moving the support arm (11) parallel to the reel shaft (13) and transversely to the strip-feeding device,

   characterized in that the height of the support arm (11), which solely supports the reel during the filling procedure, is adjustable by means of a height adjustment arrangement.
2. The device as claimed in claim 1, characterized in that the strip-feeding device (16) comprises a lead-in channel (17), the inclination of which is adjustable and lockable relative to the reel (10).
3. The device as claimed in one of the preceding claims, characterized in that the strip-feeding device (16) is mounted in an articulated manner.
4. The device as claimed in one of the preceding claims, characterized in that the height of the reel shaft (13) is adjustable by the height adjustment arrangement relative to the preferably stationary or fixed lead-in channel (17) and/or relative to a separating paper feed from the separating paper reel (20).
5. The device as claimed in one of the preceding claims, characterized in that a control device (19) is provided which, when the reel is being filled, varies the height of the support arm (11) in dependence on the diameter of the reel (10), which is already filled with strip-shaped material, in such a manner that the feed direction of the strip-shaped material remains the same during the filling of the reel (10).
6. The device as claimed in one of the preceding claims, characterized in that the support arm (11) is provided as the only releasing device and conveying device for the reel (10), which releasing device is solely standing on the machine frame (12).
7. The device as claimed in one of the preceding claims, characterized in that it comprises two support arms (11) for receiving at least one reel (10) each, the reels (10) thereof being filled in an alternating manner.

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