ES2689331T3 - A combination of an introducer with a machine for primary treatment operations such as pressing, stamping, softening and finishing, on tanned skin, fake skin, fabric, synthetic material and others - Google Patents

Abstract

COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS SUCH AS PRESSED, PRINTED, SOFTENING AND FINISHING, ACTING SUCH MACHINE ON A PRODUCT LIKE SKIN, CURED SKIN, FALSE SKIN, FABRIC, SYNTHETIC MATERIAL AND OTHER, such machines being known with term "presses", which subject the product to a thermal heat treatment that, in addition to being produced directly in the treatment area, can also occur in an earlier phase of the same, when there is a need to preheat the product to reduce the times of the treatment and / or improve initial treatment conditions; said introducer (100) being placed in an immediately previous phase of the primary operating station (PWC) and performing the introductory station (IS) function of the product (P) with which it is to be worked and consisting of an apparatus that is totally independent and distinct from the members of the machine operating in the primary operating station (PWC), said introducer (100) comprises a first device (10) consisting of a pair of bands (1, 2) wound in a ring, that overlap, to determine an intermediate zone (Z), where the product (P), while in sliding connection, experiences a smoothing and distribution effect before coming into contact with the pressing and / or stamping members, which consist in a smooth or engraved upper roller (R1), possibly also heated, which operates in counterpressure with a lower pressing roller (R2), each of said bands (1, 2) of thermal appliances (3, being provided), 4), which transmit the heat to the two parts of said bands (1,2) that define the channel for the passage of the product (P) that, consequently, undergoes heating on both sides, obtaining a preheating of the product itself; said introducer (100) being characterized in that it comprises a second device (20) that has the function of a transfer belt on which the operator deposits the product (P) that is connected to said first device (10) in a phase immediately above, and why said thermal devices (3,4) are provided within each of said two bands (1,2).

Description

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DESCRIPTION

A combination of an introducer with a machine for primary treatment operations such as pressing, stamping, softening and finishing, on tanned skin, fake skin, fabric, synthetic material and others

Description

The present invention relates to a combination of an introducer with a machine for primary treatment operations such as pressing, stamping, softening, finishing and others, in tanned skin, fake skin, fabric, synthetic material and others, according to claim 1.

In relation to the various methods with which they work, machines for the primary treatment of tanned skin, fake skin, fabric, synthetic material and others, commonly known with the generic definitions of "presses", "softening machines" and "machines to pigment ", basically consist of a station to introduce the material to be treated followed by a station where the primary treatment of the product takes place and by a discharge station of the processed product.

Specifically, such machines are used:

- as "presses for drying / pressing", when there is a need to make the upper surface of the product to be treated soft and possibly also polished;

- as "printing presses", when there is a need to stamp a pattern on the top surface of the product;

- as "softening machines", when there is a need to soften the product and / or return the softness lost during previous treatment operations experienced by the previous product;

- as "pigment machines", when there is a need for superficial application of a liquid pigment on the surface of the product.

Operationally, in order to obtain an improved success of all these operations, there is a need to subject the product to a heat heat treatment which, in addition to being produced directly in the treatment area, can also occur in an earlier phase thereof, when there is a Need to preheat the product to reduce treatment times and / or improve initial treatment conditions.

By way of example, it is worth mentioning the plate press described in WO 9210592 (figure 1), where the product to be treated (ref. L) is deposited on a first conveyor belt (ref. TB) which, combined with a second conveyor belt (ref. HB), then places the aforementioned product in three operating stations (references STS, TRS1, TRS2) where opposite plates (ref. HZV) perform the operations, respectively, of drying and where the heating of the Product is produced with media inserted directly at the stations mentioned above.

Again by way of example, it is worth mentioning the plate press described in patent document GB2038234 (figures 1, 2), where the skin (ref. CF) is placed by means of a conveyor belt (ref. 10) in a structure of bridge (ref. 1), where a hydraulic press (ref. 7) provided with opposite plates (references 3, 5) performs stamping on said product and where, in addition to the normal heating that occurs within the bridge structure ( ref. 1) by means of the pressing plate (ref. 5), the product also undergoes preheating by means of external devices (ref. 16) placed in an earlier phase of said structure.

Again by way of example, it is worth mentioning a roller press described in patent document DE 20 2006 003489 U1 (figure 2), where the skin (ref. 6), which is placed on a conveyor belt (ref. 11), it is passed through a limited area (ref. 17) defined by two opposite rollers, an upper roller, specifically a stamping pressure roller (ref. 18), and a lower contrast roller (ref. 13), and is produced where a preheating of the skin by means of a heating unit (ref. 20) arranged in an immediately preceding phase of the mentioned rollers and consisting of a radiator (ref. 22) that transfers heat to the mentioned skin by means of a heated tape (ref. 21) before being introduced into the limited area mentioned.

In particular, the roller presses, known as the "pigment machines", consist of two opposite rollers that rotate synchronously and asynchronously, with the object of the upper roller transferring a liquid material onto the product to be treated, while the lower plays the role of dragging means; they can be provided with an apparatus that acts as a fold distributor and facilitates the introduction of the product into the limited treatment area.

In the prior art in force, among the various types of apparatus for introducing the product that are placed in an immediately previous phase of the primary treatment station and are known by the generic term "introductors", an apparatus consisting of a pair of bands rolled in a ring, which overlap, to identify an intermediate area where the product, while in sliding connection, experiences a smoothing and distribution effect before coming into contact with the primary treatment area.

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By way of example, it is worth mentioning patent document EP 2177632 A1 (figures 1,2), where the skin (ref. P) is transported into a limited treatment area (ref. K), defined by an upper roller knurled (ref. 2) and a lower rubber roller (ref. 1), by using an introducer consisting of a pair of bands wound in a ring (references TS, TI), which overlap to identify an intermediate area where the product, while in sliding connection, experiences a smoothing and distribution effect before coming into contact with the aforementioned primary treatment area; Basically, you experience an automatic "fold distribution" action.

Operationally, with the use of the introducer, which consists of an apparatus that is placed in an immediately previous phase of the primary treatment station, the skin or other product to be treated does not need to be distributed on a conveyor belt since advantageously, said product is transferred directly by the introducer or "fold distributor" to the "limited area" of the primary treatment station where the treatment occurs, as evidenced by the comparison between figures 2 of patent documents GB 2038234 and DE 202006003489 U1 and Figure 2 of EP 2177632 A1.

In actual practice, on the other hand, the absence of the conveyor belt at the station to introduce the skin does not allow the placement of any skin preheating apparatus [see placement of said devices in GB 2038234 (Figure 2 / ref 16) and DE 202006003489 U1 (Figure 2 / ref. 20)], so there may be only one heating action that occurs only in the primary treatment station, on the heated plates or rollers. This condition, in actual practice, does not admit products to be treated such as tanned skins, which need to be properly heated to dissolve the chemicals applied on the surface in the previous treatment operations and simultaneously cannot undergo excessive heating so as not to put at risk the quality and softness of the processed product.

By way of illustration, in presses where heating is only assigned to the upper roller, the heat exchange area occurs in the tangent contact line between the product and the hot roller and the temperature of said roller is set to a single value. for the entire length of the hot roller / contact line of the mentioned product, with the consequence that a concentrated heating action is caused on a single part of the product, which is in contact with the mentioned hot roller.

The present invention aims to make a device applied to the previous primary machines such as "presses", "softening machines" and others, which does not have the disadvantages manifested by similar products of a known type.

Specifically, the object of the invention is to manufacture an introducer device that increases the temperature and / or humidity of the product to be treated in a regulated manner.

Another object of the invention is to manufacture a device that facilitates the introduction of the skin into the machine.

These objects are achieved by providing the machine with an introducer that, in addition to the functions of smoothing and distribution of folds, also provides a preheating and possibly also a humidification of the product to be treated, on one or both sides, in a regulated and homogeneous manner and at a temperature that is independent of the operating temperature of the plates or rollers operating in the primary treatment area.

Practical tests have shown that, with preheating or humidifying the product, press / stamping, softening and pigmentation effects can be obtained that are remarkably different and improved with respect to those obtained with traditional machines.

Essentially, since the skin or the product being treated is already preheated when it is introduced into the primary treatment station, skins and other stamped products with a higher yield and softness can be obtained due to the lower temperature required by the plates or by the upper roller that performs the primary treatment.

Since a larger contact surface with relatively low temperatures can be used in the presses, the total dissolution of the chemical compounds of the finish is obtained to obtain a skin with considerable physical features and appearance, for example, less gloss.

Finally, the invention makes it possible for the introducer to also be provided with a hydraulic circuit that performs a vaporization function to make the sliding product properly hydrated so that when said product enters the limited area to undergo primary treatment, remedy the loss of moisture experienced by the product itself. The invention will be better described by describing a possible embodiment thereof, provided by way of non-limiting example, with the aid of the accompanying drawings, in which:

- Figure 1 represents a schematic view of the introducer of the invention, placed in a station for the

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primary treatment;

- Figure 2 represents a perspective view of the introducer of the invention.

As shown in Figure 1, placed in an immediately preceding phase of the primary operating station, indicated in conjunction with the reference "PWC", consisting, in the specific embodiment shown, in a top roller R1 heated with a smooth surface or stamped, and on a lower pressing roller R2, which define the limited primary treatment area "K", is the introducer of the invention, indicated in conjunction with reference 100, which performs the function of introducer station "IS", which It consists of a first device indicated with reference 10, which performs the function of introducer / distributor of folds and is of the type formed by a pair of bands wound in a ring 1 and 2, which overlap, to identify an intermediate area "Z "where the product" P ", while in sliding connection, experiences a smoothing and distribution effect before contact with the front drag rollers; said device 10 is characterized in that it allows, within each of the two bands 1 and 2, thermal devices 3 and 4 that transmit heat to the two parts of the previous bands and that define the channel for the passage of the product "P "which, consequently, undergoes heating on both sides, thus obtaining a preheating of the product itself.

The introducer 100 is completed by placing, in an immediately preceding phase of the device 10, a second device 20 that performs the function of transfer belt, on which the operator deposits the product "P" to be treated.

Likewise, the introducer / distributor of folds 100 allows to also be provided with a vaporization circuit, to moisten both sides of the product "P", which supplies spray bars 5 and 6 arranged within the two bands 1 and 2 to hydrate the product "P", and spray bars 7 and 8 placed on the transfer belt 20 to prehyde the product itself, when necessary.

Operationally, the temperatures, the operating temperature of the upper heated roller R1 where the pressing / stamping operations are performed and the preheating temperature of the thermal appliances 3, 4 where the preheating of the product "P" takes place, are adjusted independently other.

Operationally again, the steam flows that supply the first spray bars 5, 6 for hydration and the second spray bars 7, 8 for prehydration, respectively, are adjusted independently of each other; normally, the first spray bars 5, 6 are used, while the second spray bars 7, 8 play an auxiliary function because they are only activated when the product "P" to be treated is remarkably dehydrated. Finally, the invention allows the first device 10, which performs the function of fold introducer / distributor, and the second device 20, which performs the function of transfer belt, to connect to each other at the junction point 30 and form a single structure 100. With the construction solution described above, when provided simultaneously with the thermal appliances 3, 4 and with the spray bars 5, 6, 7, 8, the introducer 100 can work alternately only with the heating function activating only thermal appliances 3, 4, or only with the hydration function by activating only the spray bars 5, 6, 7, 8 of the product "P", and can alternatively perform regular hydration using only the first spray bars 5, 6 front or just a prehydration using only the second spray bars 7, 8.

In general, the fold introducer / distributor 100 of the invention performs the function of introducer station "IS" and consists of an apparatus that is totally independent and distinct from the members of the machine operating in the primary operating station "PWC" .

From the foregoing, it becomes clear that the objects of the invention have been achieved because the introducer of the invention achieves a preheating and a vaporization of water in the product before treating it, which consists, for example, in ennobling Tanned skins or pressing fabrics, and can be installed on machines with various conformations that are already on the market.

Obviously, in the execution stage, various variants of the introducer of the invention are possible, and also the use of different technical components, according to the heating medium used, such as thermal oil, hot water, steam, electrical resistors, and with the type of operating machine to be equipped, as long as it is within the inventive concept defined by the following claims.

Claims (9)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 60 65 1. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS SUCH AS PRESSED, PRINTED, SOFTENING AND FINISHING, ACTING SUCH MACHINE ON A PRODUCT LIKE SKIN, CURED SKIN, FALSE SKIN, FABRIC, SYNTHETIC MATERIAL AND OTHER, such machines being known with the term "presses", which subject the product to a thermal heat treatment that, in addition to being produced directly in the treatment area, can also occur in an earlier phase of the same, when there is a need for preheating the product to reduce the treatment times and / or improve initial treatment conditions; said introducer (100) being placed in an immediately previous phase of the primary operating station (PWC) and performing the function of introducer station (IS) of the product (P) with which it is to be worked and consisting of an apparatus that is totally independent and distinct from the members of the machine operating in the primary operating station (PWC), said introducer (100) comprises a first device (10) consisting of a pair of bands (1, 2) wound in a ring, that overlap, to determine an intermediate zone (Z), where the product (P), while in sliding connection, experiences a smoothing and distribution effect before coming into contact with the pressing and / or stamping members, which consist in a smooth or engraved upper roller (R1), possibly also heated, which operates in counterpressure with a lower pressing roller (R2), each of said bands (1, 2) of thermal appliances (3, being provided), 4), which transmit the two parts of said bands (1,2) that define the channel for the passage of the product (P), which consequently undergoes heating on both sides, obtaining a preheating of the product itself; said introducer (100) being characterized in that it comprises a second device (20) that has the function of a transfer belt on which the operator deposits the product (P) that is connected to said first device (10) in a phase immediately above, and why said thermal devices (3,4) are provided within each of said two bands (1,2). 2. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claim 1, characterized in that it is provided with a vaporization circuit, which supplies first spray bars (5, 6), arranged within the two bands ( 1,2), to moisten both sides of the sliding product (P), obtaining a hydration of the product itself. 3. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claim 2, characterized in that it is provided with a vaporization circuit, which supplies second spray bars (7, 8), placed on the transfer belt ( 20), to moisten both sides of the sliding product (P), obtaining a prehydration of the product itself. 4. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claim 2, characterized in that it provides means for mutually and independently adjusting both the operating temperature of the upper heated roller (R1), where the operations are performed of pressing / stamping, such as the preheating temperature of the thermal appliances (3, 4), where the preheating of the product (P) takes place. 5. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claims 2 and 3, characterized in that the steam flows supplied by the first spray bars (5, 6) for hydration and the second spray bars (7, 8) for prehydration, respectively, are adjusted independently of each other. 6. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claim 1, characterized in that the first device (10), with function of introducer and / or distributor of folds and the second device (20), with function of transfer belt, they connect to each other and form a single structure (100) that constitutes the entire introducer station (IS). 7. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to one or more of the preceding claims, characterized in that it is provided simultaneously with the thermal devices (3, 4) and the first and second spray bars (5 , 6, 7, 8) and works alternatively only with the heating function, by only activating the thermal devices (3, 4), or only with the hydrating function, by operating only the first and second spray bars (5, 6, 7, 8) for the product (P). 8. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claims 2 and 3 characterized in that it is provided simultaneously with the first spray bars (5, 6) and the second spray bars (7, 8) and alternatively obtains a hydration using only the first front spray bars (5, 6) or only a prehydration using only the second spray bars (7, 8). 9. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR PRIMARY TREATMENT OPERATIONS, according to claim 1, characterized in that the thermal appliances (3, 4) are supplied with a hot fluid such as diathermic oil, steam or hot water. 5 10. COMBINATION OF AN INTRODUCER WITH A MACHINE FOR TREATMENT OPERATIONS PRIMARY, according to claim 1, characterized in that the thermal appliances (3, 4) consist of electrical resistors.