阅读说明：本技术 用于处理材料幅材的装置 (Device for treating a material web ) 是由 F·布罗伊尔 于 2019-12-12 设计创作，主要内容包括：本发明涉及一种用于处理材料幅材(1)的装置,包括：处理室(2)；用于将材料幅材(1)运输穿过处理室(2)的器件,其中,处理室(2)具有用于材料幅材(1)的入口狭槽(3)和出口狭槽(4)；以及用于在很大程度上密封入口狭槽(3)和/或出口狭槽(4)的器件(7)。该装置要能够在运行期间在入口狭槽(3)和出口狭槽(4)的区域中与材料幅材(1)的形状无关地在很大程度上密封。这通过如下方式来实现：用于密封的器件(7)包括多个区段(8),这些区段的自由端(8.3)可相应不同地在高度上调节。(The invention relates to a device for treating a material web (1), comprising: a processing chamber (2); means for transporting a web of material (1) through a treatment chamber (2), wherein the treatment chamber (2) has an inlet slot (3) and an outlet slot (4) for the web of material (1); and means (7) for largely sealing the inlet slot (3) and/or the outlet slot (4). The device is to be able to seal to a large extent during operation in the region of the inlet slot (3) and the outlet slot (4) independently of the shape of the material web (1). This is achieved by: the sealing device (7) comprises a plurality of segments (8), the free ends (8.3) of which are adjustable in height in a corresponding manner.)

1. An apparatus for treating a web of material (1), comprising:

a processing chamber (2);

means for transporting the web of material (1) through the treatment chamber (2), wherein the treatment chamber (2) has an inlet slot (3) and an outlet slot (4) for the web of material (1); and

means (7) for largely sealing the inlet slot (3) and/or the outlet slot (4),

characterized in that the means (7) for sealing comprise a plurality of segments (8) whose free ends (8.3) can be adjusted in height correspondingly differently.

2. The device of claim 1, wherein the free end is adjusted according to the type of fin-line.

3. Device according to claim 2, characterized in that for adjustment an adjusting rod (12) with a circular cross section is arranged.

4. A device according to any one of claims 1 to 3, characterised in that for adjustment truss rods are arranged.

5. The device according to any one of claims 1 to 4, characterized in that means for adjustment are provided for automatically adapting to the position of the web of material (1).

6. The device according to claim 5, characterized in that at least one proximity sensor (17) is arranged for determining the position of the web of material (1).

7. The device according to any one of claims 1 to 6, characterized in that means for adapting the means for sealing to the width of the web of material (1) are arranged.

8. The device according to any one of claims 1 to 7, characterised in that the walls (8.1, 8.2) of the segments (8) are made of an elastically deformable material.

9. The device according to any one of claims 1 to 8, characterized in that said section (8) has a high transverse stiffness.

10. The device according to any of the claims 1 to 9, characterized in that the means (7) for sealing are arranged in a holder which is height-adjustably fixed in the treatment chamber (2).

11. The device according to any one of claims 1 to 10, characterized in that the means (7) for sealing are arranged overlapping.

Technical Field

The invention relates to a device for treating a web of material (Warenbahn), comprising: a processing chamber; means for transporting a web of material through the housing, wherein the process chamber has an inlet slot and an outlet slot for the web of material; and means for largely sealing the inlet slot and/or the outlet slot.

Background

Such devices are known per se and are described, for example, in DE 10333483 a 1. For example, they are used to subject a web of material to a heat treatment. For example, the material web is made of textile or paper and can already be finished (verredeln) and/or coated before entering the apparatus. These devices have an inlet slot and an outlet slot, which are generally provided with means for sealing in order to reduce the entry of infiltration air (risk of condensation) and/or the escape of drying air (energy loss and possible escape of harmful substances). Devices for sealing include, for example, nozzles which form an air curtain during operation (described in DE 10007004 a 1) or elastic sealing lips (described in DE 1785636A). In many cases, the means for sealing may not be designed such that they contact the web of material or otherwise affect the surface(s) and/or coating(s).

In many devices for processing a material web, the material web is not spread out flat in one plane, but forms concave or convex arches. The curvature is dependent on the mass, in particular the weight, of the material web and the transverse stresses acting on the material web. The known devices for sealing are not sufficiently adapted to the respective shape of the material web, so that the cross section of the slot which remains open is relatively large and the sealing effect is correspondingly unsatisfactory.

Disclosure of Invention

It is therefore an object of the present invention to provide an apparatus for treating a material web, which apparatus can be largely sealed during operation, irrespective of the shape of the material web, in the region of the inlet slot and/or the outlet slot, without negative effects on one or both surfaces of the material web occurring.

This object is achieved by the features of claim 1. The means for sealing comprise a plurality of segments whose free ends can be adjusted in height correspondingly differently, i.e. perpendicular to the main face of an idealized plane of the material web. Thereby, the shape of the open portion of the inlet slot-the gap-can be adapted to a large extent to the curvature of the material web, so that the gap as a whole can be very narrow. The greater the number of sections per unit length, the more precise the adaptation to the shape of the material web. In summary, the device is sealed as good as possible, taking into account that the surface of the material web is not contacted by the means for sealing, and only a small amount of penetrating air can enter, or only a small amount of process air can escape. The handling of the material web and the energy balance of the device are improved as a whole.

The dependent claims relate to advantageous embodiments of the invention.

In one design, the free end is adjusted by an inherent automatic kinematic mechanism (Bewegungsautomatik). Such a robot is known, for example, as a Fin Ray (Fin Ray). The automatic movement mechanism is caused by a plurality of inherently rigid lugs (stem) which are fastened in an articulated manner on the inside at the wall of the section. Thereby providing a relatively good and simple adaptation to the shape of the material web.

In a further embodiment, a round rod is arranged for the adjustment section. The round bar can be elastically bent according to the camber of the web of material. The circular cross section ensures a defined contact area of the rod with the segments, thus ensuring a high accuracy of the adjustment.

In a further embodiment, for adjustment purposes, truss rods (tension/compression rods; for example neck-tensioning rods for stringed instruments, in particular for guitars) are arranged. The truss rod consists of two rods, the ends of which are fixed to each other. Here, for example, a fixed connection is arranged at an associated first of these ends, while an adjustable, movable connection is arranged at an associated second of these ends, for example by means of a thread forming the tensioning element. Depending on the tension to be adjusted, the rod is straight or curved in one of two opposite directions. Thereby, the adjustment can be performed simply by changing the tension of the tensioning element.

In a further embodiment, means for adjusting are provided for automatically adapting to the position of the material web. Thereby, the gap always has an optimal width.

In another design, at least one proximity sensor is arranged for determining the position of the web of material. This facilitates a corresponding control, thereby reducing the risk of the web of material contacting the upper and/or lower boundary of the gap. On the other hand, with proximity sensors a reliable signal can be generated, which can be utilized as a key variable for automatically regulating the width of the gap.

In a further design, means for adapting the means for sealing to the width of the material web are arranged. The width of the gap can thereby be minimized to an optimum value.

In another design, the walls of the segments are made of an elastically deformable material. This facilitates the adjustment of the means for sealing, since the resetting of the deflection section takes place automatically during the unloading. This section, although the outer skin is deformable, has good overall stability in interaction with the tabs.

In another design, the segment has a high lateral stiffness. This prevents interference when adjusting the individual segments.

In another design, the means for sealing may be arranged height-adjustable. This provides one of many possibilities for adapting to a sagging or arched web of material.

Alternatively or in addition to the height adjustability, the means for sealing are arranged overlapping in the region of the free end for the same purpose.

Drawings

The invention is further explained on the basis of the attached schematic drawings. Wherein:

FIG. 1 shows a cross-section of an apparatus for processing a web of material;

figure 2 shows a view of the inlet slot of the device with the tensioning chain;

FIG. 3 shows a perspective view of a segment;

fig. 4 shows a longitudinal section and a perspective view of the adjusting rod (fig. 4 a);

FIG. 5 shows a cross-section through the adjuster rod of FIG. 4;

fig. 6 shows a cross section of the inlet slot of fig. 2 in a) a passive state and b) an active state.

Detailed Description

As can be seen from fig. 1, the apparatus for treating a web of material 1 comprises a substantially closed treatment chamber 2 having an inlet slot 3 and an outlet slot 4 as passages for the web of material 1. The material web 1 is transported longitudinally in the direction of arrow 5 (here in a horizontal plane) through a process chamber 2 having at least one zone. The material web 1 is held at its longitudinal edges with a predetermined transverse tension by means of holders (Halter)6 shown in fig. 2, for example needles or clips fixed to chains which are arranged movably in the rails 6.1. The rails 6.1, chains and needles or clips are parts of a device for transporting the web of material 1. The inlet slot 3 and the outlet slot 4 are closed to as great an extent as possible by the means for sealing 7 without the risk of the means for sealing 7 contacting the web of material 1.

As can be seen from fig. 2 to 4, the means 7 for sealing comprise a plurality of segments 8 which are arranged in two void-free rows, overlapping or above and below the material web 1, at least over the entire width of the slots 3, 4 and which close the inlet slot 3 or the outlet slot 4 at least to a large extent in the passive state. Ideally, in the active state, only a narrow gap remains open with a predetermined play with respect to the material web 1.

Each of the segments 8 is designed such that a force acting at one location of the segment 8 causes an inherent deformation at another location of the segment 8. Such intrinsic variants are described, for example, in DE 19916411 a1, EP 0860355 a1 and EP 0045713 a 1.

The section 8 has a width of from 2cm to 10cm, preferably from 3cm to 5 cm.

Each of the segments 8, shown more clearly in fig. 3, has a cross section substantially in the shape of an isosceles acute triangle without the effect of point or line loads; this means that the walls 8.1, 8.2 of the section 8 form the waist and hypotenuse of the triangle. The triangular main faces of the segments 8 at right angles to the walls 8.1, 8.2 are open substantially except for the webs 9. The angle formed between the legs of the triangle is about 30 deg. and the height of the triangle is about 20 cm. The thickness of the wall 8.1 forming the waist decreases from the hypotenuse 8.2 to the apex 8.3 of the triangle. All walls 8.1, 8.2 of the section 8 are made of an elastic material which is temperature stable within a wide range of 0 ℃ to 25 ℃. A suitable material is, for example, silica gel, which has the advantage of being both non-flammable and easy to clean.

The construction of the section 8 as a hollow body ensures good thermal insulation.

The section 8 preferably tapers slightly across its width towards the apex 8.3 of the triangle, which forms the free end 8.3 of the section 8; the width of each of the walls 8.1 forming one of the waists here (according to fig. 3) decreases continuously and symmetrically from the upper part towards the lower part by about 1/2 mm; this reduction can also be formed in a step-by-step manner. Thereby preventing adjacent segments 8 from jamming against each other and facilitating automatic recovery after deflection of apex 8.3 (i.e. free end 8.3).

Between the waists, a plurality of (here five) webs 9 are arranged, which extend at regular intervals parallel to the oblique sides and are fastened in an articulated manner at the waists. Each of the webs 9 is made of a rigid material or, preferably, is made more rigid by a correspondingly thicker material thickness when the material of the walls 8.1, 8.2 is used. For the articulated fastening, the transition between the associated wall and the web 9 is formed by a thin elastic material, preferably the same material as the walls 8.1, 8.2.

At the beveled wall 8.2 of the portion 8, two legs 10 pointing outwards are arranged at a distance from each other in the longitudinal direction of the bevel for fixing the portion 8 at the support rail.

In one of the waist-forming walls 8.1, two cut-outs 11 are arranged at the outer side. These cut-outs are mounted in the area of this wall 8.1 provided for acting on the adjusting lever 12. The point of action of the adjusting lever 12 is thereby more accurately defined and, as a result, the height of the free end 8.3 can be adjusted more precisely and more uniformly.

The adjusting rod 12 shown in fig. 4 and 5 comprises a tubular sheath 13 in which two elongated rods 14, 15 are arranged. In the jacket 13, a bearing block 16 is immovably fixed relative to the jacket 13 in the region of each of its ends. A first one of the rods 14 is immovably fixed in an associated one of the bearing seats 16 at each of its two ends, while a second one of the rods 15 is rotatably seated in a threaded hole in the bearing seat 16. For this purpose, the second rod 15 has an external thread in its end region. The threaded hole and the external thread are configured as a left-hand thread at one end of the sheath 13 and as a right-hand thread at the opposite end, so that a rotation of the second rod 15 about its longitudinal axis causes its length to change between the bearing blocks 16. The second lever 15 can be driven manually or by motor.

When the adjusting lever 12 extends straight in a neutral manner, the length of the levers 14, 15 between the bearing blocks 16 is identical.

One of the bearing blocks 16 is fixedly arranged and the other is arranged axially displaceable (with respect to the adjusting rod 12).

Fig. 4b furthermore shows an example of an adjusting lever 12 which is curved in an arc-shaped manner by rotation of the second lever 15, not to scale and in perspective, without further detail.

One of the adjusting levers 12 is associated with each row of segments 8; i.e. for example two adjusting rods 12 are associated with the entry slot 3. These adjusting rods are fixed at the associated section 8 in closely spaced-apart relationship or in contact and are fixed horizontally in the treatment chamber 2 so as to be movable back and forth in the longitudinal direction of the material web 1. Here, the longitudinal axes of the two rods 14, 15 lie in a horizontal plane and the contact is in a predetermined area of the wall 8.1 forming the waist. The movement is performed manually or by motor.

The effect of the force action on the segments 8 by the adjusting lever 12 is illustrated in an exemplary manner in fig. 6, wherein the segments 8 overlap in height in the passive, i.e., undeformed state (only indirectly visible in the drawing). Fig. 6a shows the inlet slot 3 in the case of the shape of an (idealized) plane of the material web 1 or in the edge region thereof. The adjusting rod 12 is in this case pressed against the segments 8 with a force such that the inlet slot 3 is formed as a narrow gap between the curved segments 8. Here, the section 8 has an active, i.e. curved shape. The spacing of the segments 8 relative to the web of material 1 is very small.

According to fig. 6b, the material web 1 is arched downwards perpendicular to the plane of the drawing. By the displacement of the adjusting lever 12 toward the section 8 (by rotation of the second lever 15 or by a horizontal displacement), a force is exerted on the section 8 located below, for example in the middle, according to fig. 6 b. The section 8 is deformed in such a way that the free end 8.3 bends downwards and thus follows the deflection of the material web 1 from the horizontal tensioning plane. The upper, here also central section 8 has no force action and is therefore not deformed, i.e. triangular in the plane of the drawing. Towards the edge of the material web 1, the deformation of the upper individual sections 8 increases approximately continuously due to the smaller force effect, while the deformation of the lower individual sections 8 decreases correspondingly. The free surface of the gap is thereby optimally minimized and adapted to the shape of the material web 1.

For the inlet slot 3 and for the outlet slot 4, a support is respectively provided in which the adjusting lever 12 and the carrying rail with the segments 8 fixed thereto in a row are respectively arranged above and below the plane of the material web 1. The support can be fixed in the process chamber 2 in a height-adjustable manner.

At least one proximity sensor 17 is associated with the device for determining the position of the material web 1, which is preferably fixed in front of the treatment chamber 2. According to this embodiment, two proximity sensors 17 are arranged, one before and one after the process chamber 2.

In operation, the process chamber 2 is heated to a predetermined temperature, for example by means of heated circulating air. The material web 1 is fixed in the region of its longitudinal edges before the treatment chamber 2, for example by means of a needle, is tensioned transversely to the transport direction 5 and is conveyed into the treatment chamber 2 via the inlet slot 3. The material web 1 is treated here as desired. After the treatment, the web of material 1 is led out of the treatment chamber 2 through an outlet slot 4 and fed to further processing sections, such as inspection sections and winding devices.

The gap of the slots 3, 4 is first pre-adjusted according to the desired position and shape of the material web 1, in particular its width and camber. For this purpose, the actuating rod 12 is pressed with linear extension against all the segments 8 in such a way that the free ends 8.3 of these segments expose as gaps a part of the slots 3, 4 between the rows of segments 8. Furthermore, the second lever 15 is rotated such that the camber of the exposed portion of the slot 3, 4 corresponds to the desired camber of the material web 1. During commissioning and operation of the device, the exposed portions of the slots 3, 4 are fine-tuned and readjusted by corresponding horizontal movements of the adjusting rod 12 as a whole and/or by turning the second rod 15.

The movement and rotation are effected, for example, by means of electric motors which are preferably actuated by means of control and regulation devices as a function of signals from the proximity sensors 17.

Alternatively, it is possible to arrange the segments 8 without overlapping. In this case, the height of the support in which the adjusting lever 12 and the carrying rail are arranged can be adjusted.

List of reference numerals:

1 Web of Material

2 treatment chamber

3 entry slot

4 outlet slot

5 arrow head (transport direction)

6 holding member

6.1 orbit

7 device for sealing

8 section

8.1 wall

8.2 wall

8.3 end of

9 contact piece

10 foot

11 cut-out

12 adjusting rod

13 sheath

14 first bar

15 second lever

16 bearing seat

17 proximity sensor