DE202009006242U1 - Replacement device for exchanging a flexible sheath, belt or sieve - Google Patents

Abstract

Replacement device for exchanging a flexible sheath, belt or sieve in the form of an endless belt loop for one or more rollers, in particular in a calendering device of a paper machine, comprising a support frame and a frame connectable to the support frame, to which the sheath, the belt or the sieve can be pushed, characterized in that the support frame (1) in the form of sub-frames (1a, 1b) is formed in two parts, each subframe with a cantilevered frame (2a, 2b) is connectable, and both sub-frames (1a, 1b) the mutually facing free end sides of the frame (2 a, 2 b) by a connecting device (13) are connected to one another.

Description

The The invention relates to a replacement device for exchanging a flexible coat, tape or sieve in the form of an endless loop of tape for one or more rollers, in particular in a calendering device of a paper machine, with a support frame and a frame connectable to the support frame to which the shell, the tape or the sieve is pushed on.

An exchange device of this kind is from the DE 198 04 824 A1 known.

there can the coat z. B. be a metal shell, which is about a roll axis rotates and thus rotates with respect to a support body.

There the flexible, tubular sheath of the roller in operation wears out more than the other parts, the coat must be replaced often.

The same also applies to screens or belts, the one or more rollers in a calender are guided.

To the Replacement of such a jacket, ribbon or screen becomes this unpacked, after which it is pushed onto a separate exchange device must be brought to essentially the shape to be in the new coat in the designated place in the paper machine is to be introduced.

The known exchange devices are like a cantilever constructed, arranged on a support frame, a frame cantilevered is. From the cantilevered free side is then the new coat pushed onto the exchange device. Subsequently he is brought to the paper machine to the intended location, after which the Jacket pulled in a known manner from the exchange device and is introduced into the paper machine.

adversely in this method and the replacement device therefor However, that is the usual paper machine widths from 8 to 10 m and widths of a coat, band or band based thereon Siebes the support frame and the frame to be very solid so it does not cause undue bends comes at the freely projecting ends of the frame.

Of the The present invention is therefore based on an exchange device of the type mentioned above to improve such that In a simple structure unacceptable deflections avoided become.

According to the invention This object is achieved in that the support frame in shape Partial frames is formed in two parts, each subframe connectable with a cantilevered frame, and both subframes on the mutually facing free end faces of the frame by a Connecting device are connected to each other.

By the inventive division of the support frame on two sub-frames, with the new coat, the tape or sieve each from the cantilevered sides of the two frames the sub-frames are postponed, which subsequently connected with each other, can be an inadmissible Durchbie supply by halving the cantilevered lengths the frame - compared to just a support frame with a cantilevered frame - in connection with the subsequent Connection of the two frames together, largely avoided.

On this way becomes an exchange of a coat, ribbon or sieve not only easier, but the replacement device must as well no longer be trained so massive. This leads over it in addition to a cost reduction.

In Advantageously, you will train the two subframes mobile, to make them easier to handle, especially easier to connect and then to be transported to the paper machine.

The Connecting device for the two frames on their freely projecting end faces can be done in various ways. Advantageous are the guide members who are responsible for a simple, precise and easily detachable connection to care.

The Leaders can, for example, as Guide pin to be formed, extending in the axial direction one frame and in recesses of the other frame can be inserted or used.

Of course are in the context of the present invention also other connecting devices possible.

For the actual connection between the two frames can z. B. connecting screws may be provided in the corresponding Holes in the other subframe screwed or push-through are. In this way, fast connectivity and solvability reached.

For this purpose, the two frames can be provided at their free ends each with a flange, which with distributed over the circumference Bohrun are provided, in which the connecting bolts are arranged or pushed through this.

Also the guide links can be arranged in a flange and in aligned with the guide members holes or Recesses in the flange of the other subframe insertable be.

following is an embodiment of the invention in principle described.

It shows:

1 a subframe of a support frame and a frame before its connection to the subframe;

2 a subframe having an associated frame and a jacket prior to connection of the shell to the replacement device;

2a Schematic representation of a sleeve with a jacket;

3 the subframe after the 2 with a jacket partially pushed onto the frame;

4 an end view of the subframe after the 2 and 3 with deferred coat;

5 a side view of two subframes whose frames are connected at their cantilevered ends by a connecting means to a unitary support frame with arranged thereon coat.

6 an enlarged detail of the circle VI in the 5 with the connection device.

The replacement device for exchanging a flexible sheath, belt or wire has a support frame 1 in the form of two sub-frames 1a and 1b on. Both sub-frames are used to form a uniform support frame 1 mirror images of each other when they are, as described in more detail below, connected to each other.

In the 1 is a subframe 1a presented before a frame 2a connected with him. The frame 2a is made up of several side rails 3 , Cross members 4 and diagonal struts 5 educated. This structure is only mentioned as an example. It is only essential that sufficient stability results.

In the lower area on both sides are the side members 3 with several over the length of the frame 2a distributed rounding sections 6 Mistake.

The frame 2a comes with the subframe 1a connected in a manner not shown. For this purpose, z. B. each arranged on a longitudinal carrier flange plates 7 and 8th be provided, via which a detachable screw connection.

From the 2 is evident as the frame 2a on the subframe 1a postponed and connected to this.

In the 2 is also a new coat 9 represented by a sleeve 10 hanged, which is held by a support device, not shown. In a first step, the coat hangs 9 , held by the sleeve 10 over which he is pushed, free down (s. 2a ).

In the 2 is the sleeve 10 lowered and the lower part of the screen 9 lies on a platform 11 on. In this way, the jacket receives a triangle shape or a triangle profile. Like from the 2 is apparent, the frame becomes 2a that with the subframe 1a is connected, from the side towards the coat 10 pushed in the direction of arrow A. So the coat 9 outside on the frame 2a put over the frame 2a Of course, it can be pushed, that the coat 9 is brought into such a triangle shape with so much play that the coat 9 without damaging it on the frame 2a can be deferred. For this purpose may optionally be provided that the jacket, z. B. in the case of a metal shell, by suction cups 11 (dashed line) on the coat 9 be set on the outside, is held in the appropriate position.

Especially in the lower part of the band you have to make sure that the band is on both sides 9 is brought into an arc shape such that it without damage to the bow sections 6 of the frame 2a can be deferred. The sleeve 10 is also on a support accordingly 12 Lower the frame and put it in the right position to bring it together with the tape 9 on the longitudinal struts 3 of the frame 2 can be hung up.

The 3 shows a position of the band 9 im partly on the frame 2a pushed state.

The 4 shows an end view of the frame 2a with suspended band 9 with the sleeve 10 , The sleeve 10 is lowered accordingly, that they are on the surface 12 of the frame 2a rests.

The 5 shows in side view the complete assembly of the support frame 1 from the two sub-frames 1a and 1b , This was done in each case in the upper area of the two frames 2a and 2 B via a connection device 13 created a unity with each other.

To postpone the coat 9 on the two frames 2a and 2 B become the two sub-frames 1a and 1b in the direction of arrow B approached to each other, wherein the jacket 9 from the two cantilevered sides on both sides of the frame 2a and 2 B is postponed.

If after completely pushing the sheath on the two frames 2a and 2 B the two frames touch each other at their mutually facing, freely projecting sides, the two frames are through the connecting device 13 connected to a unity, as in the 5 is shown.

For easier installation, the two subframes 1a and 1b mobile trained and this with not shown roles or wheels 14 Mistake.

In the 6 For example, there are two solutions for the connection device 13 shown on an enlarged scale. The 6 represents a detail enlargement of VI in the 5 represents.

Each on a frame part of the two frames 2a and 2 B is a flange 15a respectively. 15b arranged.

As shown in the upper area in the 6 is the flange 15a with a bolt as a guide member 16 provided in an aligned bore 17 in the flange 15b to connect the two frames 2a and 2 B is inserted.

At the bottom of the 6 is a connection type shown, with a screw 18 through a hole in the two flanges 15a and 15b stuck and by a lock nut 19 to connect the two frames 2a and 2 B is secured.

Of course, with both options, more than the flanges 15a and 15b distributed bolts 16 and drilling 17 or screws 18 with locknuts 19 intended.

Of course, in the context of the invention, other connection means for connecting the two frames 2a and 2 B and thus to form a unit for a support frame 1 possible.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19804824 A1 [0002]

Claims (6)

Replacement device for exchanging a flexible sheath, belt or sieve in the form of an endless belt loop for one or more rollers, in particular in a calendering device of a paper machine, with a support frame and a frame connectable to the support frame, to which the sheath, the belt or the sieve is pushed, characterized in that the support frame ( 1 ) in the form of sub-frames ( 1a . 1b ) is formed in two parts, each subframe with a cantilevered frame ( 2a . 2 B ), and both subframes ( 1a . 1b ) on the mutually facing free end sides of the frame ( 2a . 2 B ) by a connection device ( 13 ) are connectable to each other. Exchange device according to claim 1, characterized in that the two subframes ( 1a . 1b ) with their frames ( 2a . 2 B ) are designed mobile. Exchange device according to claim 1 or 2, characterized in that the connecting device ( 13 ) is provided with guide members. Exchange device according to claim 3, characterized in that the guide members act as guide pins ( 16 ) in the axial direction of a frame ( 2a ) and in recesses or bores ( 17 ) of the other frame ( 2 B ) can be used. Exchange device according to one of claims 1 to 4, characterized in that the connecting device ( 13 ) with connecting screws ( 18 ) is provided. Exchange device according to claim 4 or 5, characterized in that the guide pins ( 16 ) or the connecting screws ( 18 ) each in a flange ( 15a . 15 ) of a frame ( 2a . 2 B ) are arranged.