Dyeing autoclave for textile materials

Abstract

A dyeing autoclave for dyeing textile material comprises a substantially cylindrical body (1) in which a dyeing chamber (10) is formed, the dyeing chamber being adapted to accommodate a dyeing bath and the textile material to be dyed. A cover (2) for opening or closing an upper inlet (10M) of the dyeing chamber (10) is provided on the main body (1). The cover (2) is moved in the opening and closing positions of the opening (10M) by means of an actuator (3) which controls the cover (2) to move in a direction (F) parallel to the inlet opening (10M) between the opening and closing positions controlled by the actuator (3).

Description

Technical Field

[0001] The invention relates to an autoclave for dyeing textile materials.

[0002] As is known, dyeing autoclaves for textile materials are generally made of a container with a substantially vertical or horizontal cylindrical development, forming a dyeing chamber containing the dyeing bath and the material to be dyed, with a lateral opening for inserting said dyeing bath and the material, and a closing system with a mobile cover which must ensure an excellent seal of the container. During dyeing, an excellent seal must be guaranteed between the cover and the dyeing chamber in order to adequately counteract the pressure generated when the temperature of the dyeing bath increases.

[0003] Examples of dyeing autoclaves for textile materials are disclosed in CN203498646U, CN203498645U, CN210886573U and KR200334384Y1.

[0004] The main purpose of the present invention is to provide a dyeing autoclave for textile materials, which is equipped with a removable cover closing system, which is more compact than traditional systems and at the same time provides the possibility of using an automatic textile material loading system, which autoclave does not require a large operating space and excessive dimensions, and the space required for installing a dyeing machine using this autoclave is reduced compared to the current requirements.

[0005] This result has been achieved according to the invention by adopting the concept of realizing a dyeing autoclave for textile materials having the features of claim 1. Further features of the invention are the subject of the dependent claims.

[0006] Thanks to the invention, it is possible to efficiently access the dyeing room, since the closed system of the autoclave is more compact, in particular when the autoclave is in an open configuration. The movement of the cover according to the invention allows the use of automatic systems for loading / unloading textile materials, avoiding excessive operating spaces around the autoclave. In addition, there is the fact that the autoclave for dyeing textile materials according to the invention is relatively simple and cheap to manufacture, offering advantages compared to currently known systems.

[0007] These and other advantages and features of the present invention will be more easily and better understood by those skilled in the art through the following description and accompanying drawings, which are provided by way of example and should not be considered limiting, wherein:

[0008] - Figure 1 Schematically shows a dyeing autoclave for textile materials according to the invention in a closed configuration;

[0009] - Figure 2Indicates that the Figure 1 Dyeing autoclave;

[0010] - Figure 3 The dyeing autoclave is shown in an open configuration during the loading / unloading phase of the material holder basket;

[0011] - Figure 4 is a schematic top view of a dyeing autoclave for textile materials according to the present invention in an open configuration;

[0012] - Figure 5 is a schematic top view of a dyeing autoclave for textile materials according to the present invention in a closed configuration;

[0013] - Figure 6 and Figure 7 They show the unpressurized ( Figure 6 ) and pressurization ( Figure 7 ) Details of the gasket of the configuration;

[0014] - Figure 8 and Fig. 9 They are Figure 4 and Figure 5 Two schematic diametrical cross-sectional views of an autoclave according to the invention for dyeing textile materials in a configuration of FIG.

[0015] Simplified to its basic structure and with reference to the attached drawings, the autoclave for dyeing textile material according to the present invention comprises a substantially cylindrical body (1) in which is formed a dyeing chamber (10) suitable for containing a dyeing bath and the textile material to be dyed, preferably contained in a material holder basket (1C). In the attached drawings, said body (1) is mainly developed in height.

[0016] The dyeing chamber (10) has an upper inlet (10M).

[0017] The dyebath is prepared in a manner known to the person skilled in the art and is fed into the dyeing chamber (10) by means of a feed pipe (11) or directly through the upper inlet (10M).

[0018] The dyebath can be discharged from the dyeing chamber (10) via a discharge pipe (12). Loading and unloading the dyebath itself is also an operation known to the person skilled in the art.

[0019] A cover (2) for opening / closing an entrance (10M) of a dyeing chamber (10) is provided on the main body (1). The cover (2) is moved between the opening and the corresponding closing positions of the entrance (10M) by means of an actuator (3). Since the entrance (10M) is located on the upper side of the main body (1), the cover (2) is arranged and acts on the upper side of the main body (1).

[0020] Advantageously, according to the invention, the opening / closing movement of the cover (2) is parallel to the movement of the inlet (10M).

[0021] With reference to the accompanying drawings, the movement (F) is horizontal. In addition, in the accompanying drawings, the upper inlet (10M) is also horizontal, ie, it is spread out in a horizontal plane.

[0022] Advantageously, the actuator (3) controlling the opening / closing movement of the cover (2) is a piston which, according to the embodiment shown in the accompanying drawings, has a skirt (30) integrally corresponding to the upper surface (20) of the cover (2) and a rod (31) anchored to a fixed structure (32).

[0023] In practice, the actuator controls the translation (F) of the cover (2) over the upper inlet (10M) of the dyeing chamber (10). In other words, according to the example shown in the attached drawings, the actuator (3) controls the translation (F) of the cover (2) parallel to the inlet (10M).

[0024] The closure system has an overall dimension (h) that is constant in each configuration of the lid (2) and in each intermediate stage: in fact, the opening / closing movement (F) simply consists in a translation (F) of the lid (2) perpendicular to the central axis (A1) of the body (1), rather than a rotation or an axial translation (translation along the central axis of the lid) as provided by known dyeing autoclaves, in which, therefore, it is necessary to have a greater free space around the body of the autoclave to allow the rotation of the lid, or the lid restricts access to the access for loading / unloading the material, since, even in the open position, the lid remains in front of the same access.

[0025] Preferably, the cover (2) is provided with a lower attachment (23) in which the recess (22) is formed so as to be able to receive the edge (13) of the body (1) arranged corresponding to the inlet (10M). Figure 8 and Fig. 9 In the example shown in , the lower attachment (23) extends along the rear edge of the cover (2), that is, along the edge of the cover (2) facing the fixed structure (32), and the recess (22) is intended to receive the edge (13) of the body (1) also facing the fixed structure (32).

[0026] Furthermore, preferably, the body (1) has an upper appendix (14) having a corresponding seat (15) intended to receive the front free end portion (21) of the cover (2). Preferably, said upper appendix (14) is formed on the side radially opposite to said outer radial edge (13). Figure 8 and Fig. 9 In the example shown, the free end (21) of the cap (2) is diametrically opposed to a side of the same cap forming the recess (22).

[0027] The open autoclave configuration is determined when the lid (2) is in a position that leaves the inlet (10M) completely free: thanks to the actuator (3) reaching the position of the lid (2), it brings the lid (2) towards the fixed structure (32) using a translation movement (F).

[0028] When the cover (2) is in the fully closed inlet (10M) position, the cover attachment (21) fits into the seat (15) of the body (1), while the attachment (13) of the body (1) fits into the seat (22) of the cover (2), determining the closed autoclave configuration.

[0029] This position of the cover (2) is reached due to the complete extraction of the actuator (3), which brings the cover (2) to the maximum distal position relative to the fixing point (32). The closed autoclave configuration is also determined by the complete sealing of the dyeing chamber (10) by means of the gasket (5) described below.

[0030] The pressure normally generated in the chamber (10), correctly maintained by the above-mentioned seal, generates a thrust on the cover (2) which is adequately counteracted by the appropriately sized appendages (23) and (14).

[0031] With this structural configuration, when the cover (2) is in the closed position, its free end portion (21) fits into the seat (15) of the main body (1), and the edge (13) of the main body (1) fits into the recess (22) of the cover (2). In this way, the cover (2) is firmly fixed to the main body (1).

[0032] A gasket (5) is arranged on the inlet (10M).

[0033] Preferably, the gasket (5) is of expansion type to increase its reliability and duration, regardless of the opening / closing movement (F) of the lid (2): the gasket (5) is not pressurized during the lid opening phase (2), but is pressurized when the lid (2) reaches the autoclave closed position.

[0034] In the example shown in the attached drawings, the gasket (5) is a pneumatically expandable gasket equipped with a valve (50) which allows compressed air to be introduced into the gasket (5) by means of a corresponding duct (51) and correspondingly to be extracted from the gasket (5). The presence of the gasket (5) ensures an excellent sealing of the chamber (10) during the dyeing process. Figure 6 In the embodiment, the gasket (5) is not pressurized, while in Figure 7 The pressure inside the gasket (5) is determined by Figure 7 The reference symbol "P" in FIG.

[0035] The loading / unloading of the textile material into / from the dyeing chamber (10) can be performed by using an automatic loading and unloading system for handling the material holder baskets (1C). For example, an automatic system for loading and unloading the material holder baskets of the type described in EP1431436 can be used, i.e. a system of this type comprising a mechanism adapted to pick up the baskets from a pick-up point, to move the baskets along a predetermined path above a structure accommodating a predetermined number of dyeing autoclaves, and also adapted to release the baskets into or remove the baskets from the autoclaves. Figure 3 Schematically shown is the insertion of a material holder basket (1C) according to the invention into a dyeing autoclave with a movement from top to bottom. The movement to extract the basket (1C) from the dyeing autoclave is the opposite of the insertion movement.

[0036] The movement (F) of the cover (2) parallel to the upper inlet (10M) facilitates the introduction of the material holder basket (1C) into the dyeing chamber. In fact, the material holder basket (1C) can move freely above the body (1) when the material holder basket (1C) is inserted into the dyeing chamber (10) and when they are removed. Figure 3 In the figure, arrow "X" and arrow "Y" represent possible trajectories followed by the material holder basket (1C), wherein the horizontal stroke (X) is the material holder basket approaching the autoclave above the autoclave, and the vertical stroke (Y) is the insertion of the material holder basket into the dyeing chamber (10). When the material holder basket is removed from the dyeing chamber, the material holder basket can move vertically in the direction opposite to the direction indicated by arrow "Y" and then move freely above the autoclave.

[0037] As can be seen from the foregoing description, the dyeing autoclave for textile materials according to the present invention comprises a substantially cylindrical body (1) in which a dyeing chamber (10) is formed, wherein a cover (2) is provided on the body (1) for opening / closing an inlet (10M) of the dyeing chamber (10), and wherein the cover (2) is moved between the open and closed positions of the inlet (10M) by means of an actuator (3), and the actuator (3) controls the cover (2) to move between the open position and the closed position controlled by the actuator (3) in a direction (F) parallel to the upper inlet (10M).

[0038] It is also obvious from the above description that the dyeing autoclave for textile materials according to the present invention can exhibit one or more of the following features, or even a combination thereof:

[0039] - The actuator (3) is constrained to the outer surface (20) of the cover (2).

[0040] - An expandable gasket (5) is provided on the inlet (10).

[0041] - The gasket (5) is an expandable gasket having an air chamber connected to means (50, 51) suitable for controlling the introduction of compressed air into its interior to pressurize it, and correspondingly controlling the extraction of compressed air from its interior to depressurize it.

[0042] The cover (2) has a recess (22) shaped so as to be able to receive inside it an appendix (13) of the body (1) formed corresponding to the inlet (10M).

[0043] - The recess (22) is formed on the lower appendix (21) of the cover (2).

[0044] The body (1) has a seat (15) intended to receive inside it the free end portion (21) of the cover (2).

[0045] - said direction (F) is horizontal.

[0046] The actuator (3) controlling the opening / closing of the cover (2) is a piston having a corresponding skirt (30) integral with the upper surface (20) of the cover (2) and a rod (31) anchored to a fixed structure (32).

[0047] In fact, in any case, with regard to the various elements described and illustrated, and their mutual arrangement, the implementation details may vary in an equivalent way without thereby departing from the concept of the solution adopted and thus remaining within the limits of the protection granted by this patent in accordance with the following claims.

Claims

1. A dyeing autoclave for dyeing textile material, comprising a substantially cylindrical body (1) in which a dyeing chamber (10) is formed suitable for containing a dyeing bath and the textile material to be dyed, characterized in that A cover (2) for opening / closing an upper entrance (10M) of the dyeing chamber (10) is provided on the main body (1), and the cover (2) moves between an open position and a closed position of the entrance (10M) with the aid of an actuator (3), and the actuator (3) controls the movement of the cover (2) along a direction (F) parallel to the entrance (10M) between an open position and a closed position controlled by the actuator (3).

2. The dyeing autoclave according to claim 1, characterized in that The actuator (3) is constrained to the outer surface (20) of the cover (2).

3. The dyeing autoclave according to claim 1, characterized in that An expandable gasket (5) is provided on the inlet (10M).

4. The dyeing autoclave according to claim 4, characterized in that The gasket (5) is an expandable gasket having an air chamber connected to a device (50, 51), wherein the device (50, 51) is suitable for controlling the introduction of compressed air into the interior of the gasket to pressurize the gasket, and correspondingly controlling the extraction of compressed air from the interior of the gasket to depressurize the gasket.

5. The dyeing autoclave according to claim 1, characterized in that: The cover (2) has a recess (22) shaped to be able to receive therein an attachment (13) of the main body (1) formed corresponding to the inlet (10M).

6. The dyeing autoclave according to claim 5, characterized in that The recess (22) is formed on the lower attachment (21) of the cover (2).

7. The dyeing autoclave according to claim 1, characterized in that: The body (1) has a seat (15) intended to receive inside it the free end portion (21) of the cover (2).

8. The dyeing autoclave according to claim 1, characterized in that The direction (F) is horizontal.

9. The dyeing autoclave according to claim 1, characterized in that: The actuator (3) controlling the opening / closing of the cover (2) is a piston having a corresponding skirt (30) integral with the upper surface (20) of the cover (2) and a rod (31) anchored to a fixed structure (32).

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