CN100532207C - Coiler for removing cut bundle material - Google Patents

Abstract

The invention discloses a coiling device for taking away the bundled materials such as metal strips that have been cut off from a package. The device comprises a rotatably driven receiving part (2), which is rolled The winding area has a winding surface (4) and a receiving groove (3) for clamping the binding material (1). The winding surface (4) of the receiving element (2) basically has a polygonal, preferably square, cross-sectional shape and is surrounded by at least two mutually spaced extrusion parts (5, 6), said extrusion parts It can move toward or away from the receiving part (2), and its inner surface (7) is geometrically similar to or identical to the winding surface of the receiving part.

Description

Coiler for removing cut bundle material

technical field

The invention relates to a reel suitable for removing severed binding material, in particular metal strips, from packs.

Background technique

Such devices are used, for example, in the paper industry. The raw material for papermaking, ie pulp or waste paper, is often supplied in compact bales bound by binding material, especially wire or strip. Such wires or strips usually have to be removed before the raw material is thereafter processed in a solvent to form an aqueous suspension. While this can be done by hand, it is dangerous and laborious. Therefore, further improvements and developments have been made to this type of device, and the removal of the cut wire and strip can be carried out automatically and smoothly by means of this type of device. The coiling device that can be used for this purpose has been described by German patent specification DE 2821 336 C2 for example. public.

When using the winding head according to the invention in a baling device, the winding device is preferably arranged in such a way that it can be clamped on the side of the pack opposite the cutting device. Before or after the strip or wire is cut at the opposite side, either the receiver is placed against the package, or the package is advanced against the receiver in such a way that the end-side working end of the receiver rests directly against the package to be removed. on the lower binding material. When the receiver is thereafter rotated, the tape or wire is wound, thereby removing the tape or wire from the pack, thereby forming a smaller, stronger roll that is easily collected and transported away.

The socket is preferably placed on the shaft of the motor, in particular an electric motor with a slow output speed. However, it can also be, for example, a hydraulic motor, which is preferably designed in such a way that it can be adjusted in such a way that its shaft assumes a defined position relative to the binding material to be received when parked. This has the advantage that the binding material can be accommodated more reliably and conveniently in the slot on the receiving part.

For compression binding into transportable bales, round steel wires of eg 4 mm diameter are used in many cases. This allows the wire to be wound up with known coiling devices, into so-called coils, and removed axially from the socket. However, in other cases where the steel strip is used as the binding material, the binding material may be stuck in the coiling device so that it cannot be removed reliably. Such a steel strip has, for example, a thickness of 2 mm and is made of steel, special steel or another elastic material. After winding, that is, when the torque applied by the receiving element for winding has been canceled, this steel strip is very prone to strong rebound, that is, to bulge and loosen again. This has the result that the binding material expands outwards so strongly after unloading that it becomes stuck in the take-up.

In other cases, the binding material is not made of metal but of plastic. Such binding materials are in most cases available as strips, for example strips with a width of between 10 and 20 mm and a thickness of about 1 mm. The plastic strip can, for example, be woven or produced by an extruder. Bundling materials made of plastic may also tend to unwind again after winding to the extent that unbundling is impeded.

Contents of the invention

The technical problem to be solved by the present invention is to provide a new coiling device, by which not only the wires used for bundling packages, but also the strips used for bundling packages can be reliably wound. And then take it off from the coiling device. According to a certain special design, it should also be possible to remove difficult plastic strips.

The above-mentioned technical problem is solved by a kind of reeling device that is suitable for taking off the bundled material that has been cut off, especially metal strip from packing, and this reeling device is by at least one guide part for binding material, a receiving part and a device for pushing the wound binding material away from the receiving member in the axial direction; the receiving member has a winding surface and a receiving groove for clamping the binding material in its winding area, and can Rotating relative to the guide, according to the invention, the take-up surface of the receiving element has substantially a polygonal, preferably square, cross-sectional shape; the receiving element is surrounded by at least two mutually spaced extruding parts, The two extruding parts can move toward and away from the receiving part; the inner surface of the extruding part is similar to or identical to a part of the winding surface of the receiving part in geometric shape.

In the device according to the invention, the outer surface of the receiving part and the inner surface of the pressing part cooperate in a particularly advantageous manner. Due to the shape of the corners, the wound binding material can be deformed very strongly at the corners and thus deformed plastically. Strip coils or wire coils processed in this way no longer tend to expand disturbingly after unloading. With this simple measure, even binding materials which, for example, tend to loosen after winding (such loosening occurs with spring steel or certain plastics) can be wound and removed without difficulty . An outstanding advantage of the coiling device according to the invention is also that no distinction between strip and wire is required, since this involves a universal device. There is also no requirement to check the type of bundled material on incoming raw material packages. It goes without saying that for soft binding materials that are difficult to loosen after winding, the winding device of the present invention can still be taken off without difficulty.

According to a preferred design of the coiling device of the present invention, the inner surface of the extruding part is an angular slope with two side legs facing the receiving part, and the top ridge line of the angular slope is parallel to the The axis of rotation of the socket. In addition, the polygon constituting the winding surface of the receiving member is preferably equilateral.

More advantageously, the allowable deviation between the opening angle of the inner surface of the extrusion part and the vertex angle of the polygon is ±10°.

According to an advantageous refinement of the invention, the polygon forming the cross-sectional shape of the winding surface is rounded at its corners with a radius of curvature of at most 10 mm. The radius of curvature is preferably 0.1 mm.

According to a further advantageous embodiment of the coiling device according to the invention, the number of vertices of the polygon is not greater than 8, preferably 4. The vertex angles of the polygon correspond to 360° divided by the number of vertex angles. Certainly, the vertex angle of the polygon may also be smaller than the value obtained by dividing 360° by the number of vertex angles.

According to a further advantageous embodiment of the coiling device according to the invention, the axis of rotation of the receiving part is oriented approximately horizontally during operation and a maximum deviation of -15° to +15° is permissible.

In the take-up device according to the invention, the receiving part is rotatably driven in both directions. The pressing part can then only be moved towards and away from the receptacle.

A hydraulic cylinder for moving the pressing element can be provided in the coiling device according to the invention.

Preferably there are two extrusion parts in one coiling device.

The coiling device according to the invention also preferably has an automated process control for moving the receiving part and the pressing part.

In the coiling device according to the invention, means for heating the binding material can also be provided. At least one pressing part can be heated, as can the winding surface of the receiving element. The heating can be electric heating or radiation heating.

The means for heating can be used in such a way that the highest temperature can be achieved at the bending point of the extrusion part.

The coiling device according to the invention can be used for removing strips from waste paper bales or pulp bales in cooperation with a strip cutting device.

Description of drawings

The present invention and its advantages are described below in conjunction with the accompanying drawings of schematic representation, in the accompanying drawings:

Figures 1a-1d show the principle and mode of operation of the coiling device of the present invention when coiling;

Figures 2a-2c show the principle and working method of the coiling device of the present invention when cutting off the binding tape;

Fig. 3 shows a kind of modified structure with pointed corner of coiling device of the present invention;

Figure 4 shows a further variant of the coiling device of the present invention shown in Figure 3, with devices dedicated to heating the binding material;

Figure 5 shows another variant with heating means.

Detailed ways

Figures 1a-1d show the components of the coiling device of the invention and the four main stages of its operation. The receptacle part 2 is placed with its winding surface 4 between the two extrusion parts 5 and 6 . Cutting off, loosening and slowly pulling out the binding material on the package is not shown in the figure. Next, the binding material is delivered to a suitable position facing the take-up device. In the state shown in FIG. 1 a , the binding material 1 has been fed into the receiving groove 3 of the receiving element 2 . In this operating state, the two pressing parts 5 and 6 are at a greater distance from the receiving part 2, so that the binding material to be wound can assume the function of a guide. The inner surfaces of the pressing parts 5 and 6 respectively form a side wall opening toward the receiving part 2 at an included angle β=90°. The ridge line of the angle runs parallel to the axis of rotation 9 . Here, the cross section of the winding surface 4 obtained by sectioning the receiving part 2 perpendicularly to the axis of rotation 9 has a square shape with slightly rounded corners. At this time, the apex angle α is 360° divided by 4, which is equal to 90°. The fillet has, for example, a radius of curvature of at most 10 mm, preferably at most 1 mm. Depending mainly on the binding material to be processed, a curvature radius of approximately 0.1 mm can also be particularly preferred. FIG. 1 b shows the strip coil 10 formed by turning the socket 2 . In the subsequent pressing process shown in FIG. 1c, the two pressing parts 5 and 6 are moved and pressed in the direction of the receiving part 2, for example by means of hydraulic cylinders. In this way, the strip coil 10 shown in FIG. 1 b is transformed into a strip coil 10 ′ whose shape approximates the winding surface 4 of the receiving part 2 . As already explained, the binding material is plastically deformed in a particularly effective manner. After the pressing parts 5 and 6 have moved apart from each other, the deformed strip coil swells and is pushed off the receiving part 2 as a relaxed, unstressed strip coil 10" moving axially. For this, as shown in FIG. 2 , a push-out part 11 which can move axially on the receiving part 2 is used.

In FIG. 1 a , the winding position of the receiving part 2 is arranged such that the binding material 1 can pass through the pressing parts 5 and 6 in the area of the receiving part 2 . In contrast to this, in FIG. 1c the receiving part 2 is rotated such that the winding surface 4 and the inner surfaces of the pressing parts 5 and 6 approximately correspond to one another.

Figures 2a-2c show an embodiment of the winding head according to the invention in three different functions, a description of which specific details are omitted. In this case, a horizontally arranged winding head with a rotatable socket 2 (axis of rotation 9 ) has a winding surface in its winding region. The socket is shown in partial section, so that the ejection plunger 11 in its center and the push rod 12 associated therewith can be seen. An open-ended receptacle 3 for clamping a binding material (not shown here) is provided on this winding area. The upper pressing part 5 and the lower pressing part 6 are situated at least such a distance from the winding surface 4 that the wound strip coil 10 can be accommodated in the intermediate cavity. This spacing can be adjusted to a maximum throughout the winding process to leave room for the coil at the end of the process, or to always accommodate progressively larger coils for the tape-guiding function.

As shown in FIG. 2 b , the strip coil is deformed in the already mentioned advantageous manner by co-pressing the two pressing parts in the direction of the receiving part 2 . After the two extruding parts 5 and 6 are separated from each other again, the extruded strip coil is released and slightly bulked, and the unclamped strip coil 10" can then be released by means of the ejector 11. Axial removal from the device. To this end, the push rod 12 is moved towards the working end of the receiving part 2.

FIG. 3 shows a preferred embodiment of the coiling device according to the invention with certain prerequisites. In this embodiment, unlike the example in FIG. 1 , the apex angle α' of the receiving element 2 ′ is smaller than 360° divided by the number of apex angles. In the case shown in the figure, the apex angle is not 90°, but 45°, wherein other values, in particular values between 45° and 90°, are also possible due to the special requirements of the binding material. Correspondingly, the pressing parts 5' and 6' are adapted to the contour of the receiving part, that is to say similar to or identical to its geometric shape. In the illustrated case, the opening angle β' has a value of 2° greater than the apex angle α'. Such an embodiment is particularly suitable for binding materials made of plastic, since the resulting angle during the winding process, for example smaller than 90° (in the case of a quadrilateral), further reduces the tendency of the binding material to expand again.

Especially with the plastic coiling device according to the invention, its operation can be further improved by heating, which is shown as an example in FIG. 4 . This heating can preferably be achieved by heating wires 13 in the extruded parts 5" and 6". However, it is also possible for the heating wire 14 to be installed in addition or only in the receptacle 2 , 2 ′. Heating of the binding material can also be effected by radiation, or by rotating the roll of strip material with a slightly compressed pressing part, for example by friction created between the strip and the pressing part. These strips should be heated to a temperature such that the temperature exceeds the softening point of the plastic, preferably between 80° C. and 120° C., at least at the bending point 15 .

Heating of the coiling device can also be done in the embodiment shown in FIG. 1 . The most preferred construction follows the requirement that it may be important to design a universal reel, ie to design a reel that is suitable for both metal and plastic strips. As already explained, it is convenient in practice when such a reel-up device can be used for different materials without modification. If the coiling device as shown in FIG. 5 is provided with heating elements in the pressing part and/or in the receiving part, it can be expected that it can process all binding materials without difficulty. The arrangement of the heating wires and the like can be arranged so that the highest temperature is generated exactly at the bending point 15 .

Claims (23)

1. one kind is suitable for the batch up gear that the binding material (1) that will cut off is taken away from the packing part, it comprises that at least one is used for the guide of binding material, a supporting (2,2 ', 2 ") and the device that the binding material that will reel is pushed open from this supporting vertically; This supporting has coiling face (4 in its winding area, 4 ', 4 " ") and be used to clamp the receiving channel (3) of this binding material (1), and can rotate with respect to this guide, it is characterized in that: described supporting (2,2 ', the coiling face of 2 ") (4; 4 ', 4 ") have a polygonal shape of cross section; This supporting (2,2 ', 2 ") by the extruder member of at least two spaces (5,5 ', 5 ", 6,6 ', 6 №) surround, these at least two extruder members can towards this supporting (2,2 ', 2 ") motion and leave this supporting (2,2 ', the motion of 2 "); Described extruder member (5,5 ', 5 ", 6,6 ', the inside face of 6 ") (7,7 ') on geometric configuration with this supporting (2,2 ', 2 ") coiling face (4,4 ', the part of 4 ") is identical.

2. according to the described batch up gear of claim 1, it is characterized in that: described extruder member (5,5 ', 5 ", 6; 6 '; 6 ") inside face (7,7 ') be to have two horn shape inclined-planes towards the limit of described supporting leg, the top crestal line (8) on this horn shape inclined-plane is parallel to this supporting (2,2 ', the pivot center of 2 ") (9).

3. according to claim 1 or 2 described batch up gears, it is characterized in that: described formation supporting (2,2 ', 2 ") coiling face (4,4 ', the polygon of 4 ") such as is at the length of side.

4. according to the described batch up gear of claim 2, it is characterized in that: described extruder member (5,5 ', 5 ", 6,6 ', the permissible variation between bubble flare of 6 ") inside face (7,7 ') (β, β ') and the described polygonal drift angle (α, α ') is ± 10 °.

5. according to claim 1 or 2 described batch up gears, it is characterized in that: form described coiling face (4,4 ', the polygon of 4 ") shape of cross section is at its drift angle place rounding, the radius of curvature of this rounding is 10mm to the maximum.

6. according to the described batch up gear of claim 5, it is characterized in that: described radius of curvature is 0.1mm.

7. according to claim 1 or 2 described batch up gears, it is characterized in that: described polygonal drift angle number is not more than 8.

8. according to the described batch up gear of claim 7, it is characterized in that: described polygonal drift angle number is 4.

9. according to the described batch up gear of claim 7, it is characterized in that: described polygonal drift angle (α) is equivalent to 360 ° of values divided by the drift angle number.

10. according to the described batch up gear of claim 7, it is characterized in that: described polygonal drift angle (α ') is less than 360 ° of values divided by the drift angle number.

11., it is characterized in that according to claim 1 or 2 described batch up gears: described supporting (2,2 ', the pivot center of 2 ") (9) is the orientation of maximum allowable offset from-15 ° to+15 ° along continuous straight runs when operation.

12., it is characterized in that according to claim 1 or 2 described batch up gears: described supporting (2,2 ', 2 ") can be driven rotationally along both direction.

13., it is characterized in that according to claim 1 or 2 described batch up gears: described extruder member (5,5 ', 5 ", 6,6 ', 6 ") only can towards described supporting (2,2 ', 2 ") motions and leave this supporting (2,2 ', the motion of 2 ").

14., it is characterized in that according to the described batch up gear of claim 13: be provided be used to make described extruder member (5,5 ', 5 ", 6,6 ', the hydraulic actuating cylinder of 6 ") motions.

15., it is characterized in that according to claim 1 or 2 described batch up gears: in a batch up gear, have two extruder members (5,5 ', 5 ", 6,6 ', 6 ").

16., it is characterized in that according to claim 1 or 2 described batch up gears: this device have one be used to make described supporting (2,2 ', 2 ") and extruder member (5,5 ', 5 ", 6,6 ', the automation process control mechanism of 6 ") motions.

17., it is characterized in that: be provided with the device that is used for described binding material heating according to claim 1 or 2 described batch up gears.

18., it is characterized in that according to the described batch up gear of claim 17: at least one extruder member (5 ", 6 ") can be heated.

19., it is characterized in that according to the described batch up gear of claim 17: the coiling face of described supporting (2 ") (4 ") can be heated.

20., it is characterized in that: the described electro heat that is heated to be according to the described batch up gear of claim 18.

21. according to the described batch up gear of claim 18, it is characterized in that: described heating is finished by ray.

22. according to the described batch up gear of claim 17, it is characterized in that: the described device that is used to heat is used like this, that is, make described extruder member (5,5 ', 5 ", 6,6 ', the crooked place of 6 ") (15) is located to reach the highest temperature.

23. according to the application process of the described batch up gear of above-mentioned each claim, wherein, the band that this batch up gear is used on part or the paper pulp packing part of under the combined action of a device that band is cut off waste paper being packed takes off.

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