DE202011110544U1 - Improved machine for combined mechanical and thermal processing of fabrics, especially fabrics - Google Patents

Abstract

Fabric processing machine comprising in combination: at least one rigid vibrating platform (2, 18, 19) capable of inducing substantially vertical vibrations in a first section of fabric in the form of a mass (3) fabric supported by the platform (2) and fabric drying means (4, 8, 9) acting on the remaining part of the fabric (T), characterized in that the platform (2) is in the form of a cradle for containing a Mass (3) is formed of the substance, wherein the cradle is divided into at least two sections whose width is less than the height of the fabric bales (T1, T2) of a substance which is processed.

Description

Technical area

This invention relates to an improved machine for the combined mechanical and thermal processing of fabrics to provide effects in terms of shape-related recoverability and haptics, especially for fabric fabrics being processed continuously or discontinuously.

State of the art

As is well known in the textile industry, there is a strong need for a fabric to maintain its shape-related stability even after tailoring, wearing, and normal cleaning and laundering treatments. This is particularly true of fabric fabrics, which by their nature tend to lose their dimensional stability more easily than other fabrics.

For this purpose, processes of finishing materials utilize various means and operations to promote shape-related recoverability of the fabric so that this value is as close as possible to the maximum that it will have during the future washing and drying operations required a cleaning of a clothing article, which is tailored from the fabric, are necessary.

• – Durchlaufen eines freien Trockners, in welchem der nasse oder befeuchtete Stoff mit offener Breite kontinuierlich auf einem Förderband transportiert wird, welches sich durch einen Trocknungstunnel bewegt;
• – Durchlaufen eines Kompaktierers, in welchem der befeuchtete und aufgeheizte Stoff mit offener Breite kontinuierlich mechanisch gezwängt wird, um seine Länge wiederherzustellen;
• – Trocknen in einem Wäschetrockner, in welchem der Stoff in einer Strangform diskontinuierlich in einen rotierenden Trockner geladen wird und mit heißer Luft aufgeheizt wird.

Of the currently possible edits, the most commonly used are essentially the following:

• Passing through a free dryer in which the wet or wetted fabric of open width is continuously transported on a conveyor belt which moves through a drying tunnel;
• Passing through a compactor in which the humidified and heated fabric of open width is continuously mechanically forced to restore its length;
• - Drying in a tumble dryer, in which the fabric is loaded in a strand form discontinuously in a rotary dryer and heated with hot air.

The first and second types of processing are not particularly effective, and in most cases it is necessary to perform both operations immediately after one another to achieve an acceptable result.

The third type of machining from the prior art, d. H. Drying with a tumble dryer is by far the most effective and is usually used as a borderline policy.

However, drying with a tumble dryer has the significant drawbacks of being discontinuous with the fabric in a strand form, being applicable only to a small amount at a time, with problems of knotting and wrestling, not providing a uniform quality and not least also very labor intensive.

The treatments described above, when applied to particular fabrics, make it very difficult to eliminate the stresses generated in the fibers during weaving, which means that obtaining a form-related recovered and well-stabilized fabric is a problem can be.

The methods used to aid in relaxation of a fabric include vibration or hitting to reduce the friction between the fibers and the fibers and other surfaces in contact therewith.

The patent documents GB1178270 . GB1304733 . EP148113A1 . EP130342A2 . US4219942 describe machines that are equipped with vibrating conveyor belts for the fabric. The flexibility of the belts in these machines prevents vibrations from being adequately transferred to the fabric.

The patent document GB2103670 describes an apparatus and method for relieving stresses in a fabric provided in a roll or cloth ball in preparation for further processing. In one of the examples described, the fabric is unwound in such a manner as to loosen a portion of it and place it on a vibrating plate.

The document GB879483 describes an apparatus in which a wet cloth is vibrated using a vibrating grid in a drying zone. The amplitude of the vibration imposed on the cloth progressively decreases in the direction of feeding the cloth.

The document FR1024514 describes a method for reducing stresses of a fabric in which the fabric is widened and caused to proceed on a vibrating support. Alternatively, the fabric may be folded on a vibrating table. To the To increase the efficiency of processing, the substance can be loaded with weights.

The document US3594914 describes a device having at least one inclined, vibrating plate on which the material slides and is exposed to heating rays.

The abovementioned solutions are not completely satisfactory since the vibrations are transmitted to cloth surfaces which are in a widened form or are moderately folded. Although this means a reduction in the friction between the fibers, the accelerations that are transferred to them are limited.

In other words, the forces of inertia generated on the fibers and acting on the fibers are insufficient to restore and stabilize the fabric to a good degree in a shape-related manner.

The patent WO2010064130 by the same assignee as this invention describes a machine in which the fabric is partially worked in the form of a substantially compact mass in a vibrating trough and partly in a drying tunnel. When conveyed through the machine, the fabric is essentially in an open width form.

Although the machine described last is much more effective than the prior art machines, Applicant has found through trials that significant improvements can be achieved.

Disclosure of the invention

It is therefore an object of this invention to provide an improved process for continuous and discontinuous processing of fabrics and which permits drying of a fabric, in particular a fabric, while simultaneously achieving recovery, swelling and relaxation effects Improved a feel (hand grip) and a dimensional stability.

This object is achieved by a machine according to the appended claims. The advantages lie essentially in the fact that the processed fabric has no residual stress due to elastic or plastic deformation restored by the combination machining and thus does not lead to dimensional instability in the fabric during subsequent processes.

These and other advantages will be better understood from the following description with reference to the accompanying drawings, which illustrate preferred, non-limiting embodiments of the invention.

Brief description of the drawings

In the drawings:

1 Fig. 10 is a schematic perspective view of a machine according to the invention for discontinuous processing of a fabric;

2 schematically illustrates a machine according to the invention for a continuous processing of a substance.

Preferred embodiment of the invention

The 1 Figure 3 illustrates an improved machine according to the invention for batch, combined mechanical and thermal processing of a fabric. To better illustrate the essential parts of the machine, the housing walls are not shown.

The machine includes a rigid, vibrating platform in the shape of a cradle 2 (English: cradle) and a drying tunnel 4 , which with at least one hot air distributor 8th equipped by a blower 10 is supplied. A conveyor belt 7 which is powered by motorized rollers 5 . 6 is powered to pick up the fabric from one end of the cradle, run it through the tunnel and bring it back to the other end of the cradle. According to the invention, the platform is in the form of a cradle in at least two sections 2a . 2 B divided parallel to the direction of the movement of the fabric for a simultaneous processing of many or more fabric bales T1, T2. Furthermore, the width of each section 2a . 2 B less than the height of the bales of material and is preferably adjustable.

In this way, during the step in which they are processed in the vibrating cradle, the fabric bales T1, T2 are partially in an open-width form and partially in a strand form, which takes the form of a mass 3 assume, with an efficiency of processing, which is noticeably improved, even compared to those using the machine of the patent WO2010064130 is achievable.

At one end of the cradle 2 the fabric bales T1, T2 are passed through the rollers 5 . 6 and through the conveyor belt 7 be absorbed by the drying tunnel 4 run and then be back in the cradle 2 placed.

In the preferred embodiment, which in the 1 is shown, the drying tunnel 4 a first hot air distributor 8th on which over the band 7 is arranged and which acts essentially on the entire distance from the fabric ball, which lies on the band. A second hot air distributor 9 may be provided to act from below through the band on the part of the distance from the mass of material furthest away from the unloading roller 6 lies. The hot air is thus properly and efficiently distributed to the part of the cloth which is transported by the belt, and further the adhesion of the cloth to the unloading roller 6 ensured. In order to prevent a mass of material from falling into the portion of the cradle adjacent to itself during unloading, vane vanes are advantageously provided. A mechanical suspension and vibration system 12 which is powered by an electric motor 13 energized, elastically supports the platform 2 in the form of a cradle and transmits vertical vibrations to the platform 2 in the form of a cradle.

The vibrations are preferably vertical or have a significant vertical component.

In particular, the amplitude and the frequency of the vibrations are caused in such a way that the acceleration which is transmitted to the substance is greater than the gravitational force, so that the entire mass is shaken by the substance and not only the part of it which is in direct contact with the platform 2 as in the case of the prior art vibrating belt systems.

For example, the peak-to-peak amplitude of the vibrations or oscillations may be between 20 and 60 mm, and the frequency may be between 5 and 15 Hz, or more preferably between 5 Hz and 10 Hz.

The heating system 8th . 9 is preferably of the hot air type, in which, if necessary, air is partially recirculated.

To increase the efficiency of processing, the fabric T should initially be in a wetted or wet condition.

The fabric is sewn from head to tail or front to back in a manner to form a closed loop that moves continuously within the machine.

The hot air entering the tunnel 4 through the distributor 8th . 9 through the blower 10 is fed and which by a direct or indirect heating system 15 may be partially recirculated back and partially renewed depending on the flow rate using the exhaust fan 11 is set.

The 2 Figure 1 schematically illustrates an embodiment of the machine for the continuous processing of fabric fabrics. The bales of the fabric, which are partly in an open width and partially stranded form, are continuously fed into a first platform 18 in the form of a cradle, which is divided into at least two sections, and from there they are conveyed by a conveyor belt system 70 similar to that described above, into a second platform 19 transmitted in the form of a cradle, go through a heated tunnel 40 which is also similar to that described above. According to the invention, the bales of material can alternate between the cradles 18 . 19 to be moved.

The invention achieves considerable technical advantages.

A first advantage is that the action of a relaxation and the action of compaction, which are caused in the mass of the substance, which is partly in an open width and partially in a strand form, which is accumulated on the platform, combined with the action of heating imposed by the drying system, absorbing most of the remaining stresses in the fabric and substantially completely eliminating deformation, be it elastic or plastic.

This advantage is particularly significant considering that stretching of the fabric is usually more plastic than elastic.

It is also possible to apply vibrations to the platforms whose frequency and amplitude are such as to not simply reduce the friction between the platform and the fabric and thus cause the tension created thereby but also in the fabric to cause accelerations are multiples of gravitational acceleration and thus mass forces which are several times greater than the weight of the fabric in such a way as to allow the fibers to slide relative to one another and to achieve a significant effect of compacting and stabilizing.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• GB 1178270 [0010]
• GB 1304733 [0010]
• EP 148113 A1 [0010]
• EP 130342 A2 [0010]
• US 4219942 [0010]
• GB 2103670 [0011]
• GB 879483 [0012]
• FR 1024514 [0013]
• US 3594914 [0014]
• WO 2010064130 [0017, 0027]

Claims (7)

Machine for processing fabrics comprising in combination: at least one rigid, vibrating platform ( 2 . 18 . 19 ) which is capable of inducing substantially vertical vibrations in a first section of a substance in the form of a mass ( 3 ) through the platform ( 2 ) and pulp drying agents ( 4 . 8th . 9 ), which act on the remaining part of the substance (T), characterized in that the platform ( 2 ) in the form of a cradle for containing a mass ( 3 ) is formed of the fabric, wherein the cradle is divided into at least two sections whose width is less than the height of the fabric bales (T1, T2) of a material which is processed. Machine according to claim 1, comprising means for inducing vibrations whose frequency and amplitude are such as to indicate the mass of the substance ( 3 ) To transmit accelerations which are several times an acceleration of a gravity. Machine according to claim 1 or 2, comprising means for inducing vibrations whose peak-to-peak amplitude is between 20 and 60 mm and whose frequency is between 5 Hz and 15 Hz, preferably between 5 Hz and 10 Hz. Machine according to one or more of the preceding claims, wherein the drying means comprise a drying tunnel ( 4 ) leading to the vibrating platform ( 2 ) is added in such a way as to allow the material to be processed to be passed continuously or alternately from the platform to the tunnel and vice versa in order to process the materials continuously or discontinuously. Machine according to claim 4, wherein the drying tunnel comprises a first hot air distributor ( 8th ), which over a conveyor belt ( 7 ) and acts substantially on the entire length of the web of material lying on the belt. Machine according to claim 5, wherein a second hot air distributor ( 9 ) is provided to from a bottom through the band ( 7 ) to act on a portion of the distance from the bale of material. Machine according to one or more of the preceding claims, comprising at least two rigid, vibrating platforms ( 18 . 19 ) which are brought together for purposes of operation and in relation to one or more drying tunnels ( 40 ) are positioned in such a way as to allow the material to be processed to pass continuously or alternately from one platform through the tunnel to another platform.

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