FR2479862A1 - APPARATUS FOR IRONING FABRICS, PARTICULARLY MESH FABRICS AND THE LIKE - Google Patents

Abstract

APPLIANCE INTENDED FOR IRONING FABRICS, IN PARTICULAR KNITTED AND SIMILAR FABRICS, CHARACTERIZED IN THAT IT INCLUDES, MOUNTED ON ITS RACK 1, A LOWER ENDLESS CONVEYOR BELT 2 WHOSE ACTIVE TOP STRAND MOVES ABOVE AROUND RIGID 10, 11, 13, ANOTHER CONVEYOR BAND 20 EXTENDING ABOVE AT LEAST PART OF THE UPPER STRAND OF THE FIRST BAND 2 SO AS TO RETAIN AND TRAIN THE FABRIC TO BE IRON TOGETHER, WITH ADDITIONAL MEANS FOR VAPORIZING THE FABRIC ACTING THROUGH THE CONVEYOR BELTS 2, 20 WHICH, FOR THIS EFFECT, ARE PERMEABLE TO STEAM, AS WELL AS MEANS FOR THE INTRODUCTION OF THE FABRIC TO BE TREATED BETWEEN THESE CONVEYOR BELTS WHICH ARE ANIMATED BY SYNCHRONIZED MOVEMENTS.

Description

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  The present invention relates to an apparatus for

  ironing fabrics, in particular knitted fabrics and the like.

  It is known in the textile industry that ironing

Age of knitted fabrics presents serious difficulties, since these tend to curl around the edges during this operation. This phenomenon has the further disadvantage that the winding of the edges during

  ironing leaves creases difficult to remove.

  It is for this reason that it has already been recommended for ironing apparatuses now stretched the fabric in treatment during the different phases of the operation, but without great success since in general their yield is low and they require a large workforce. In addition, these devices are of complex construction and

  require costly and repeated maintenance.

As for the apparatus according to the invention, it is called upon to eliminate these drawbacks while making it possible to carry out in an almost automatic manner the entire ironing operation of a knitted fabric, without requiring much labor. work and that with a perfect guarantee, as well of a good functioning as of the expected result, while ensuring a complete relaxation of the fabric and the elimination of defects and

this under the best possible economic conditions.

  The apparatus according to the invention can be manufactured with

  commercially available materials in a very competitive manner.

  It is composed of a frame carrying a trans-

endless lower carrier whose active upper strand moves on

rigid areas, with an additional conveyor belt extending

  dant at least partly above the upper strand of the first band, and capable of retaining and entraining in cooperation with the lower conveyor belt the mesh fabric to be ironed. In addition, means for vaporizing the fabric are provided acting through these bands

  conveyors, which are made of vapor permeable fabric.

  Means are also provided for the introduction of the fabric between these conveyor belts, as well as for their spacing and their drive.

for synchronous displacements.

The appended drawing represents, by way of non-limiting example

tatif, the object of the invention in a preferred embodiment, Figure 1 shows the device as a whole in elevation, Figure 2 relates to the portion of the device - 2 - comprising the means of introduction of the fabric into their raised position

  Figure 3 relates to the front part of the appliance.

  reil with rollers to spread the fabric in the raised position; FIG. 4 shows the front front end of the device corresponding to the part comprising introduction means

fabric.

  The machine for ironing fabrics, in particular

  Lière of knitted fabrics and the like according to the invention, comprises a frame

(1) produced by uprights and crosspieces of appropriate dimensions.

An endless lower conveyor belt 2 is there

assembled, made of a vapor permeable fabric.

  This conveyor belt (2) is guided by a series

  rollers (3) that it is advantageous to motorize.

  For this purpose there is provided a drive motor (4) which, by means of a geared motor (5), rotates by means of a transmission or deflection chain (6), one of the rollers (3) which is connected to the others by a chain engaged with toothed wheels mounted at the ends of the axes of these rollers. Thanks to this arrangement, all the rollers are rotated at the same speed without stretching or damaging

the fabric.

  This conveyor belt (2) has an active strand which passes over the initial rigid area (10) and is provided with means intended for the vaporization of the tissue to be treated, and above another central or intermediate area ( 11) o vaporization means can advantageously be provided, this area (11) being fixed and serving as a counter plate to a

press element (12).

  Downstream of the central area (11) is placed an area

drying (l3) Including suction openings which, acting

health on the ironed fabric. remove inherent moisture so

to provide a perfectly dry fabric at the outlet.

  This press (12) is actuated by a piston or equivalent means (14), causing a displacement perpendicular to the plane of

central or intermediate (11).

  Above the active branch of the lower conveyor belt (2), and more precisely above only part of

  the latter, another conveyor belt (20) is mounted, itself advantageously

It is made up of a vapor permeable fabric.

  This conveyor belt (20) extends between a front roller (21) and a rear roller (22), the two rollers being drive rollers actuated by one of the rollers (3) of the conveyor belt

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lower (2).

More precisely, one of the rollers (3) is provided with a toothed wheel, meshing with a corresponding toothed wheel provided with a small pinion engaged with a transmission chain (23), which in turn meshes with a small pinion wedged on the axis of the rear roller (22). On its front part, that is to say in the zone situated below the front roller (21), is provided a return element (24) on which the conveyor belt (20) passes, delimiting the entry between

the two conveyor belts for the fabric to be ironed.

To allow the introduction of the fabric between the two conveyor belts, which hold it and drag it into position

extended, the front roller (21) is supported by a rotating plate

  bined with an oscillating plate (30) articulated to the frame (1), and actuated by a hydraulic piston (32) which during the extension phase, causes the lifting of the oscillating plate (30) so as to spread, during the

initial phase, the upper conveyor belt (20) of the conveyor belt

lower frame (2) to allow the introduction of the fabric therebetween.

  Two of these oscillating plates are provided in the installation, and more precisely one on one side, and the other on the other side, supporting an element making it possible to separate the fabric. This element is formed by a horizontal rod (41), rotated by a motor

  auxiliary (42), on which are provided rollers (43) provided with rai-

  opposite helical shapes, so that when in contact with the fabric, it

  is spread outward, preventing the formation of the winding

of its edges.

The position of the rollers to spread the fabric is

variable depending on the width of the fabric to be ironed. As a result, these rou-

  the waters (43) can be moved along the rods (41) to be fixed therein

their proper position.

  The oscillating plates (30) are provided with a stop

  stop (50), which by pressing on the shoulders of the device,

  mites the lowered position of the oscillating plate (30), with the rollers

spacer (43) resting on the introduced fabric.

  Similarly, the turntables which

  support the rear roller (21) are provided with a positioning stop

  ment (60), acting on a shoulder of the device to adjust the position

lowered position of the front roller (21), and hence that of the conveyor belt

upper guard (20).

The operation is as follows:

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  When the fabric is introduced, the pneumatic pistons

  ticks (32) are activated. They lift the oscillating plates and with them, the spacer rollers as well as the front roller, so that

  lift the upper conveyor belt (20) to form a per-

  putting to introduce the ironing mesh fabric. After performing this positioning, the roller (21) is lowered so that the upper conveyor belt (20) rests on the lower conveyor belt (2) so that the fabric

be trained and advance.

  Then if necessary, the rod (41) provided with spacing rollers (43) is lowered. These rollers rotate in the manner already described, causing a lateral separation of the fabric preventing the winding

edges of it.

  The mesh fabric, introduced continuously, initially passes over the area (10) where it is subjected to a first operation

vaporization.

Then this fabric, held vigorously between the two ban-

  conveyors, passes on the central area 11 of the apparatus where the operation

spraying is repeated.

If necessary, a compression operation can also be provided by means of the press (12). Under these conditions, the movement of the conveyor belts is intermittent, and is stopped for

  lowering the press (12), which compresses the fabric. This one undergoes

sant a heating leads to the final area (13) comprising advantageous-

  suction openings, absorbing traces of remaining moisture

  aunts of the mesh fabric so that at the exit of the apparatus it is

ironed and dry.

It follows from the above that the device, very functional, gives full satisfaction, in particular thanks to the various rigid areas supporting the fabric which, properly maintainedis ironed

in a perfect way.

In addition, the presence of the upper conveyor belt

  the front end of which can be lifted to facilitate insertion

  tion of the fabric, guarantees its correct position during the entire operation,

thus taking precedence over false movements and the formation of folds or other defects.

Furthermore, the presence of the rollers spreading uniformly

mment the fabric during its introduction and preventing the winding of its

38 bordse is very important.

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The same is true for the synchronized actuation of the conveyor belts in their movement so as not to stretch the fabric,

the drive being for this purpose carried out by chains actuating simul-

  all the drive rollers.

  The invention as described is susceptible to modifications and variations, including construction details

  likely to be replaced by other technically equivalent elements.

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Claims (10)

  1. Apparatus for ironing fabric, in particular   culier of knitted fabrics and the like, characterized in that it comprises mounted on its frame, an endless lower conveyor belt whose strand   active upper moves over rigid areas, another band trans- carrier extending above at least part of the upper strand of the first strip so as to retain and entrain the fabric to be ironed together,   with in addition means for vaporizing the fabric acting through the bands-   conveyors which for this purpose are vapor permeable, as well as means for introducing the fabric to be treated between these conveyor belts which are anim (esde synchronized movements.   2. Apparatus according to claim 1, characterized in that the rigid areas comprise an introduction element provided with vaporization means, followed by an intermediate area, possibly also   ment provided with vaporization means, and a final area endowed with means   suction to absorb the moisture contained in the fabric being treated.   3. Apparatus according to claims 1 and 2, character- risé in that the lower conveyor belt is driven on rollers which are all motors, because at the ends of their axes they are provided with pinions on the whole of which takes an endless chain, the movement being obtained by a transmission chain connected to a motoreduc- Reader connected to a motor.   4. Apparatus according to either of the claims   1 to 3, characterized in that the upper conveyor belt surrounds an anterior roller and a posterior roller, the latter carrying a pinion engaged with a transmission chain, which receives movement by a pinion of a shaft carrying d '' a gear wheel engaged with one of the rollers of the lower conveyor belt.   5. Apparatus according to either of the claims 1 to 4, characterized in that above the intermediate area, acting as a counter plate, there is a press compressing the transported fabric between the lower and upper conveyor belts.   6. Apparatus according to either of the claims 1 to 5, characterized in that the introduction of the fabric takes place by means of two turntables, arranged laterally and supporting the anterior roller of the upper conveyor belt, these turntables being liftable to allow the upper conveyor belt to be moved away Of the band lower conveyor.   according to one or other of the claims 7. Device 7 - 2479862 tionsil to 6, characterized in that below the front roller, the upper conveyor belt passes over a transmission or return element with rounded front edge.   8. Apparatus according to either of the claims   cations 1 to 7, characterized in that it comprises a pair of oscil- plates   lables arranged articulated to the frame and combined with the turntables   tes, these oscillating plates supporting a rod provided with means for spreading the fabric to be ironed, these plates being also liftable upwards by means of pneumatic pistons. 9. Apparatus according to either of the claims 1 to 8, characterized in that the means for spreading the fabric are formed by two rollers with opposite helical grooves which, coming into contact with the fabric stretch it on its edges, these rollers being able to be replaced on their support rod so that their mutual distance can be adjusted according to the width of the fabric to be ironed, this rod supporting the rollers with helical grooves being rotated, if necessary by a auxiliary motor.   10. Apparatus according to either of the claims.   tions above, characterized in that a stop on the oscillating plates comes into contact with a shoulder of the frame, for the positioning of the means intended to spread the fabric, the rotary plates comprising   they also stop means for positioning the front roller.