FI59071B - ANORDINATION FOR UPPLINDING AV FANERBANA - Google Patents

Description

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PaUnt- oeh raglitantyralaan Antekan utitgd oeh utUkrifun pubiieerad 27.02.81 (32) (33) (31) The requested «tuolkvu» —B «jlrd priorlttt (71) C. Keller GmbH u. C/o. KG, Carl-Keller-Str. 2-10, U53O Ibbenburen 2, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (72) Otto Ketteler, Iburg, Hans-Peter Gielsok, Mettingen, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (7 ^ +) Oy Jalo Ant-Wuorinen Ab

The present invention relates to a veneer web winding device with a rest-pivotable control device comprising spaced parallel roller chain contact members surrounding the forming winding throughout the winding process.

DT-AS 24 24 911 discloses a device of this type, the control device of which can be turned to the rest position and which comprises spaced, parallel and interconnected contact members of plate chains which surround the winding formed during the entire winding process. The contact members are attached at one end to a cross-member fixedly mounted in the vicinity of the friction roller and at the other end to arms moving horizontally in the unit. The contact members pass around a pivot rod which communicates with the piston of the cylinder-piston unit. The touch organs have also been exported o ί.

59071 about the pivot axis and the other pivot axis. The weight keeps the contact members tightened.

This known device is very complicated and also prone to interference due to the device unit and the cylinder-piston unit used, because the contact members can stick to the pivot shaft during the fermentation process. In addition, there is a free space between the friction roller and the contact members attached to the crossbeam, the so-called inlet wedge, which the contact members are unable to cross. Folding or pitting of the veneer web may occur at this point. To prevent these folds, the device must be stopped immediately. Failure to do so will cause the veneer web to break considerably.

The object of the present invention is to provide an apparatus for winding a veneer web, which requires lower investment costs and in which the veneer web is not damaged during winding and which enables fast work performance and thus high production efficiency.

This is solved according to the invention in that the contact members are attached at one end to the free ends of the pivoting pivoting arms and at the other end hang freely downwards, that the shaft is mounted on the free ends of two spaced rotating arms, and that winding strips covering the winding of the part left free by the contact members.

In a further development of the invention, the rotary strips are guided around three pivot axes arranged in a triangular shape, and the pivot axis at the top of the triangle communicates with levers using a double-sided pivot axis, which are fixed to the crossbeam via a plate.

The advantages achieved by the invention are, in particular, that the device is small in size, simple in structure, inexpensive to manufacture and practically maintenance-free. In addition to this, the structure according to the invention can be used with certainty to avoid damage to the veneer web during winding, since the so-called inlet wedge has been removed by means of the arrangement of the rotating belts. Since the contact members are not affected by any tensile load and because they compress against their own weight against the forming veneer coils, the handling on the veneer is gentle.

3

The drawing shows in more detail a structural example of a device according to the invention. The drawing shows:

Fig. 1 is a sectional side view in which it is in the rest position,

Fig. 2 is a sectional side view of the device with the empty coil in place;

Fig. 3 is a cut-away side view of the device just prior to commissioning,

Fig. 4 is a sectional side view of a device with a veneer filled coil, and

Fig. 5 is a sectional side view of a device with a veneer-filled coil just prior to removal.

The coil 1 is mounted konejalustaan 2 and 3 rotates in the direction of the arrow. Viiluradan feeding direction of the arrow 4 using a band-conveyer 5, which may be a tape type table and can be moved in the vertical direction of the arrows 6 in the direction of, for example, the swing movement, so that it can adapt to the coil 1 winding-increasing radius during winding. At the end of the conveyor belt 3 there is a friction roller 7 which, by means of a suitable type of drive device, rotates and at the same time rotates the coil 1. The friction roller 7, possibly together with the conveyor belt 3, is pressed against the coil 1 by a spring or counterweight.

The device for winding or winding a veneer web comprises two arms 8 mounted on the side of the spool 1, the pivot point of which is on the axis of rotation 9 of the spool 1. The arms 8 are connected together at their free ends by means of a shaft 10.

Two or more are mounted on the shaft 10 at mutual intervals. according to the length of the lever, a plurality of pivot arms 11. Contact members 12, which are freely downwardly hanging roller chains, are attached to the free ends of the pivot arms 11. The pivot arms 11 remain pressed towards the arms 8 by means of a spring 13, whereby the pivot arms 11 support a connecting pipe 14 fixed and eccentrically movable between the arms 8. Due to the eccentric mounting of the connecting pipe 14, the pivot arms 11 can be adjusted in height.

The arms 8 are connected via shafts, sprockets or a synchronizing shaft to a drive motor, which causes the pivoting movement of the arms 8 and the associated movement of the pivoting arms 11 to the operating position or the resting position.

4,59071

Another part of the device for winding and winding a veneer web comprises a plurality of narrowly spaced tapers 15 spaced apart from each other. and 18, whereby the pivot shaft 16, which at the same time acts as the pivot axis of the conveyor belt 5, uses rotating belts 15. in the direction of the arrows 6. The pivot shaft 18 is supported by levers 21 and 22 mounted at each end thereof, the lever arms 77 communicating with the lever arms 21 on the one hand and the plates 19 on the other hand so that the co-operation of the lever arms 21 and 22 is like an articulation rod. In this case, the springs 23 attached to the lever arms 21 and the plates 19 act in such a way that the lever arms 21 and 22 of the articulated rod always tend to turn directly into position. As a result, the rotating belts 15 running around the pivot axis 18 are tightened, adapting to the continuously increasing winding.

The operation of the device is as follows:

Figure 1 shows the initial position. The arms 8 and the pivot arms 11 are pivoted to the side, and the friction roller 7 is also located in its lower deflected position. In this case, the empty coil 1 can move along the path 2h to the axis of rotation 9 ·

When this has taken place, the friction roller 7 comes into contact with the coil 1, whereby the rotating belts 15 automatically enclose the coil 1. The pivot arms 11 with their members 12 also come into contact with the coil 1 (Fig. 2).

Finally, the arms 8 pivot into the operating position about the axis of rotation 9, whereby the pivot angle is about 150 °, and thus at the same time pivot the pivot arms 11 in my winding position. Due to the spring force of the springs 13, the ends of the pivot arms 11 are in tight contact with the spool 1 and, when pivoting under their own weight, pull the suspension members 12 suspended around the spool 1 so that the contact members 12 are also in tight contact with the spool 1. Thereafter, the coil 1 is surrounded along almost its entire circumference by the contact members 12 and the rotating belts 15 (Fig. 3). · As the coil increases, the friction roller 7, which is pressed against the coil counterbalanced, moves downwards. Due to the dead weight of the contact members and the spring 13

Claims (2)

The pivot arms pressed against the winding by the effect of 5 59071 also rotate as the diameter of the winding increases, the position of the shaft 10 at the pivot point of the pivot arms 11 being chosen so as to take the free ends of the pivot arms 11 where the contact members 12 are located. the rotation angle remains the same during winding from start to finish (Fig. i). When the winding is completed, the arms 8 return to their initial position. In this position, the pivot arms 11 with the contact members 12 are still on the coil (Fig. 5). · The coil with the coils is then lifted vertically up from the machine base 2 and transported away, so that the pivot arms 11 turn slightly upwards, slide along the coil and then fall from its own weight to its initial position. Prior to this, the friction roller 7 together with the rotating belts 15 has been turned down so that a new empty coil can be moved into place and a new winding process can begin (Fig. 1). A veneer web winding device with a rest-turning control device comprising spaced parallel roller chain contact members (12) surrounding the resulting winding throughout the winding process, characterized in that the contact members (12) are attached at one end to the shaft (10). that the shaft (10) is mounted on the free ends of two spaced pivoting arms (8) and that the device further comprises spaced parallel endless pivot strips (15) , which cover the winding of the part left free by the contact members (12). Device according to Claim 1, characterized in that the rotating strips (15) are guided around three pivot axes (16, 17, 18) arranged in a triangular shape and in that the pivot axis (18) at the upper end of the triangle is connected at each end to the pivot axis (18). transfer levers (21, 22) attached to the cross member (80) via plates (19).