CN202139508U

CN202139508U - Device for transferring nozzle beam of curtain coating station to coating start/end position

Info

Publication number: CN202139508U
Application number: CN2011201108689U
Authority: CN
Inventors: 海基·瓦塔宁
Original assignee: Metso Paper Oy
Current assignee: Valmet Technologies Oy
Priority date: 2010-04-07
Filing date: 2011-04-07
Publication date: 2012-02-08
Anticipated expiration: 2021-04-07
Also published as: FI8764U1; FIU20100175U0

Abstract

The utility model relates to a device for transferring a nozzle beam (1) of a curtain coating station to a coating start/end position by means of a supporting wheel (6) moving at the top part of a horizontal transferring rail (5), in the device, the transferring rail (5) is arranged under a plane of a feed antelabium (3) of the nozzle beam (1). The position and structure of coating width adjusting equipment are enhanced, especially, the required space by the coating station under the multiple operating conditions is reduced, as a side structure is open, removing the nozzle beam from the coating station is very easy.

Description

The jet beam of curtain coating station is transferred to the device of coating beginning/end position

Technical field

The utility model relates to a kind of device of the jet beam (nozzle beam) of curtain coating station being transferred to the beginning/end position of coating by the support wheel that on the top of the transfer orbit of level, moves.

Background technology

The application of curtain coater in the coating of paper/board web is increasing; Its reason is for scraper/bar coating; The power that curtain coater is applied on the width of cloth material wants much little, and therefore less fracture because of paper web causes interrupting, and then makes maneuverability better.The curtain coating does not provide and the identical smoothness of smoothness of utilizing the scraper coating to be obtained, but preferable aspect coverage.

Curtain coater can be classified as slotted eye formula or the slip formula coating machine of feeding of feeding.In the formula coating machine is fed in slip, by nozzle assembly coating is fed on the plane inclined, coating is dirty towards the feed edge on this plane of antelabium (feeding lip) of formation, along with coating falls and forms curtain from the antelabium of feeding.

Feeding at slotted eye applies in the beam, and coating is pumped in the narrower vertical slotted eye via distributor chamber, and curtain is formed on this slotted eye edge and drops on the width of cloth material.Coating can be applied is one or more layers.Utilize edge guide member (edge guide) to control formed curtain, and shown in its title, said edge guide member is arranged on the edge of the groove of the feeding/antelabium of feeding.

In the curtain coating, jet beam can have fixing position, perhaps can carry out the transfer movement of level, so that begin coating and cleaning.For the jet beam that fixedly installs, the beginning of coating and/or end operation be utilized in the lip portion of jet beam and the width of cloth material that is applied between the parts that move horizontally substantially realize.The jet beam that moves horizontally then need not to use independent parts that the beginning and/or the end operation of coating just can be provided.

The horizontal movement of the jet beam that adopts in order to begin/finish coating needs transfer orbit or some other of level that the device that is equal to motion is provided.In known devices, an one of which instance is shown in Fig. 1, and transfer orbit 5 is installed on the plane of upper surface of brace summer 9 of support nozzle beam 1 and even eminence more.This is in order to make transfer orbit not hinder the observability in the working region, perhaps even can avoid for example adjusting the location of the required equipment of coating width.Support wheel 6 is arranged on the brace summer 9.In the device shown in Fig. 1; Be provided with the curtain-type apparatus for coating that slides and feed; Reference numeral 2 refers to flow plane in this device; Coating flows towards the feed leading edge of flow plane of antelabium 3 of formation along this flow plane, landing downwards and form curtain 4, and this curtain is on the surface of the shock point 7 ballistic throw material W of place.

Because this location of transfer orbit makes the structure of coating station become very high, and therefore all responsive to all vibrations.Because this structure is very unfavorable from the geometry angle, even the lip-deep little foreign matter of track also can cause the big vertical/horizontal error motion at the shock point place of curtain.Because in so-called dried edge operational mode, the lower limb of curtain edge guide member is very near width of cloth material, and its distance but can not contact usually between 0.1-5.0mm, and this vertical motion has caused (this lower limb) to touch the risk on the width of cloth material.The location of transfer orbit has also increased the cost and the complexity of structure.

Summary of the invention

The purpose of the utility model especially provides a kind of device to avoid above-mentioned these problems.

Be to realize this purpose, be characterised in that transfer orbit is set under the plane of the antelabium of feeding of jet beam according to the device of the utility model.

Particularly; The utility model provides a kind of device of the jet beam of curtain coating station being transferred to the beginning/end position of coating by the support wheel that on the top of the transfer orbit of level, moves; Device according to the utility model is characterised in that, transfer orbit is set under the plane of the antelabium of feeding of jet beam.

According to a scheme of the utility model, at least one support wheel is set to basically and formed coating curtain conllinear.

According to another scheme of the utility model, at least one support wheel is set to basically the shock point conllinear with formed coating curtain.

According to another scheme of the utility model, transfer orbit is set on the top of frame structure of coating station.

According to another scheme of the utility model, the support wheel that is positioned at fore side (tending side) and driving side is mechanical synchronization relative to each other.

Through transfer orbit being arranged under the flow plane of nozzle, the frame structure of curtain coating station obviously can be set to have bigger resistance to vibration.The rigidity of this structure also receives this true influence: the bearing frame of nozzle can be set under the transfer orbit.In known devices, this frame structure must be set on the sidepiece of transfer orbit.Thus, make the length of the crossbeam in the coating station increase and/or since these crossbeams be fastened to framework and cause moment at the fastening point place.These factors all make the rigidity of structure and intrinsic frequency reduce.In order to compensate reducing of intrinsic frequency, the size of this structure must correspondingly be designed to bigger, and heavier thus.

Be set to make the wheel and the curtain conllinear of forefront when the support wheel of jet beam; And best is during with curtain shock point conllinear; A kind of like this structure is provided; In this structure, from the viewpoint of the error motion of curtain shock point, the location of the strong point is extremely beneficial a kind of structure from the geometry angle.The position of the wheel of forefront and the plumb line of curtain can differ-100mm/+200mm in the horizontal direction.Negative sign is meant the displacement towards the support wheel at rear.Foreign particles on the transfer orbit can not cause the vertical motion bigger than its size.Because there is not horizontal movement in the cause of geometry, perhaps moves horizontally minimum.

Owing to do not exist operation of carrying out for space utilization or the obstacle that is caused, the location of transfer orbit especially to strengthen the location and the structure of coating width adjustment equipment in the jet beam end.

And,, make that particularly the required space of coating station reduces under a plurality of job statuses of jet beam according to the location of the transfer orbit of the utility model.Because side portion structure is open, removes jet beam very easy from coating station.Can be placed in before coating station next door on the passage carries out operation at this jet beam, but can force jet beam along horizontal transfer or promote it very high according to the high framework of known devices.

Description of drawings

To the utility model be described in more detail with reference to accompanying drawing now, wherein:

Fig. 1 shows the sketch map according to the principle of the transfer device of the jet beam of prior art, and

Fig. 2 shows the sketch map according to the principle of the transfer device of the jet beam of the utility model.

The specific embodiment

Comprise according to the device of Fig. 2 the antelabium 3 of feeding that is arranged on jet beam 1 etc. the transfer orbit 5 of high under; Support wheel 6 ', 6 " be arranged in the brace summer 9 along transfer orbit 5; and jet beam 1 can flatly shift, in order to jet beam 1 is sent to beginning and end position.The support wheel 6 ' of forefront is advantageously provided to being on the same plumb line with curtain 4, and more advantageously with curtain shock point 7 conllinear.Advantageously, encircle, and the support wheel and a fixing axle of different ends linked together, make that the transfer movement of jet beam between these ends is mechanically synchronous through tooth (side) for example is set on a support wheel of jet beam.To this ring gear, transfer orbit comprises the tooth bar that is parallel to this transfer orbit, and this tooth bar forces these ends to be advanced simultaneously.This mechanical synchronization also can itself as a unit and different with support wheel.This mechanical synchronization is not shown in the drawings.

Claims

1. the jet beam with the curtain coating station (1) is transferred to the device of coating beginning/end position; Said transfer is to be undertaken by the support wheel (6) that on the top of the transfer orbit (5) of level, moves; It is characterized in that said transfer orbit (5) is set under the plane of the antelabium of feeding (3) of said jet beam (1).

2. device according to claim 1 is characterized in that, at least one support wheel (6) is set to basically and formed coating curtain (4) conllinear.

3. device according to claim 1 is characterized in that, at least one support wheel (6) is set to basically shock point (7) conllinear with formed coating curtain (4).

4. according to any described device among the claim 1-3, it is characterized in that said transfer orbit (5) is set on the top of frame structure of said coating station.

5. according to any described device among the claim 1-3, it is characterized in that the said support wheel that is positioned at fore side and driving side is mechanical synchronization relative to each other.

6. device according to claim 4 is characterized in that, the said support wheel that is positioned at fore side and driving side is mechanical synchronization relative to each other.