A single pass digital dyeing apparatus for textiles

Abstract

The utility model discloses a single pass digital dyeing device for weaving, which comprises a rack, an inkjet assembly, a beam and a tension assembly, the two beams are erected in parallel on the rack at intervals, the beam is provided with a guide rail, the bottom of the inkjet assembly is provided with a sliding block matched with the guide rail, the bottom of the rack is provided with a guide roller, cloth is worn between the two beams through the guide roller and the tension assembly, the inkjet heads of the two inkjet assemblies are oppositely arranged, and the cloth is between the two inkjet heads. The single pass digital dyeing device for weaving can keep the stable cloth tension during continuous cloth feeding and dyeing, prevent the middle of the cloth from wrinkling, and synchronously dye the front and back surfaces of the cloth through the inkjet assembly symmetrically arranged on the beam, so that the uniformity and stability of the dyeing can be ensured, and the appearance of color blocks can be reduced or eliminated.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and more specifically, to a single-pass digital dyeing device for textiles. Background Technology

[0002] Traditional dyeing and printing technology is one of the core processes in the textile industry. Its goal is to endow fabrics with color, pattern, and functionality (such as antibacterial and wrinkle-resistant properties) through dyeing, printing, and post-treatment processes. Traditional dyeing and printing has supported the large-scale production of textiles globally thanks to its mature production system and low-cost advantages. However, with increasingly stringent environmental regulations and upgrading consumer demands, its technological limitations are becoming increasingly apparent.

[0003] Traditional dyeing techniques require pre-prepared dye solutions to color textiles. The desired color is usually not achieved in one go and multiple adjustments are needed. This process relies too heavily on manual experience, causes significant environmental pollution, and also has a certain impact on dyeing quality.

[0004] To address or reduce the aforementioned problems, a digital inkjet printing and dyeing device has been proposed. Utility Model Content

[0005] This invention provides a single-pass digital dyeing device for textiles, which uses inkjet components mounted on symmetrically arranged beams to perform simultaneous double-sided printing, thereby solving the problems of uneven printing and poor dyeing stability caused by the need for multiple printing processes in traditional dyeing.

[0006] According to one aspect of the present invention, a single-pass digital dyeing device for textiles is provided, comprising a frame, an inkjet assembly, main beams, and a tension assembly. Two main beams are mounted parallel to each other on the frame, and guide rails are provided on the main beams. A slider adapted to the guide rails is provided at the bottom of the inkjet assembly. A guide roller is provided at the bottom of the frame. Fabric is threaded between the two main beams via the guide rollers and the tension assembly. The inkjet heads of the two inkjet assemblies are arranged opposite each other, and the fabric is positioned between the two inkjet heads.

[0007] Based on the above scheme, preferably, the tension assembly includes a support, a buoyancy roller and a fixed roller. The support and the fixed roller are respectively mounted on the frame. The fixed roller is located on the top two sides of the support. The support is provided with a sliding groove, and the two ends of the buoyancy roller are mounted on the sliding groove.

[0008] Based on the above scheme, preferably, a sliding plate is provided at the bottom of the frame, and guide rollers are installed on the sliding plate.

[0009] Preferably, based on the above scheme, a cleaning and humidifying device is also installed on the frame between adjacent beams, and the inkjet head of the inkjet assembly interacts with the cleaning and humidifying device.

[0010] This utility model discloses a single-pass digital dyeing device for textiles. It adopts a tension component to maintain stable fabric tension during continuous fabric feeding and dyeing, preventing wrinkles in the middle of the fabric. Combined with inkjet components symmetrically arranged on the main beam, it can simultaneously print and dye the fabric on both sides, ensuring the uniformity and stability of the printing and dyeing, and reducing or eliminating the occurrence of color blocks. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the single-pass digital dyeing device for textiles according to this utility model.

[0013] Figure 2 This is a perspective view of the single-pass digital dyeing device for textiles according to the present invention.

[0014] Figure 3 This is a left view of the inkjet assembly of this utility model;

[0015] Figure 4 Left view showing the relative positions of the printheads of the relative inkjet assembly of this utility model;

[0016] Figure 5 This is a right view of the inkjet assembly and cleaning / humidifying device of this utility model;

[0017] Figure 6 This is a schematic diagram of the tension assembly of this utility model.

[0018] Explanation of icon numbers:

[0019] 10. Frame; 11. Slide plate; 20. Main beam; 21. Guide rail; 30. Inkjet assembly; 31. Inkjet head; 32. Slider; 40. Tension assembly; 41. Support; 411. Slide groove; 42. Buoyancy roller; 43. Fixed roller; 50. Guide roller; 60. Cleaning and humidifying device. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0022] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0023] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0024] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0027] Please see Figure 1 and combined Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment provides a single-pass digital dyeing device for textiles, used to achieve simultaneous digital dyeing of both sides of textile fabrics, solving problems such as uneven coloring, poor stability, and color blockage caused by multiple dyeing processes in traditional dyeing. The following detailed description of this embodiment is provided in conjunction with its specific structure.

[0028] The single-pass digital dyeing apparatus for textiles in this embodiment, such as Figure 1 As shown, it includes a frame 10, a main beam 20, an inkjet assembly 30, a tension assembly 40, a guide roller 50, and a cleaning and humidifying unit 60.

[0029] The frame 10 serves as the overall support base, with the main beam 20, tension assembly 40, guide roller 50, etc., all mounted on the frame 10. The inkjet assembly 30 is mounted on the main beam 20 and enables double-sided dyeing of the fabric. The tension assembly 40 is used to maintain the fabric tension to prevent wrinkling. The guide roller 50 is used to guide the fabric conveying path. The cleaning and humidifying unit 60 is used to ensure the stable operation of the inkjet assembly 30.

[0030] The frame 10 of this utility model is a metal frame structure (which can be formed by welding aluminum alloy or carbon steel). The guide roller 50 is rotatably installed at the bottom of the frame 10 through the bearing seat. The axis of the guide roller 50 is parallel to the width direction of the fabric 70. Its outer surface is made of smooth rubber material (to avoid scratching the fabric). It is used to guide the fabric into the dyeing area and adjust the fabric conveying angle.

[0031] The two main beams 20 of this invention are spaced apart and parallel to each other along the length of the frame 10 (the spacing is set according to the thickness of the fabric to be dyed and the inkjet requirements, for example, 10-30cm). The two ends of the main beams 20 are fixed to the top crossbeam of the frame 10 by bolts or welding. A guide rail 21 (e.g., a linear guide rail) is fixedly provided on the top of each main beam 20 (the side facing the inkjet assembly 30) along the length direction. The guide rail 21 is used to cooperate with the inkjet assembly 30 to achieve stable movement or positioning.

[0032] The inkjet assembly 30 includes an inkjet head 31 and a slider 32. The slider 32 is fixed to the bottom of the inkjet assembly 30 and slides in cooperation with the guide rail 21 on the main beam 20 (the slider 32 can be driven by a drive motor to move back and forth along the guide rail 21, or the position can be fixed according to the dyeing width), to ensure that the inkjet assembly 30 moves or is positioned stably along the width of the fabric.

[0033] The inkjet heads 31 of the two inkjet assemblies 30 are arranged opposite each other (i.e., one inkjet head faces the other inkjet head), and the fabric to be dyed passes between the two inkjet heads 31 to achieve simultaneous printing and dyeing on both sides of the fabric.

[0034] In order to improve the smooth operation of the inkjet assembly 30, the present invention provides a sliding plate 11 at the bottom of the inkjet assembly 30, and a slider 32 that slides and engages with the guide rail 21 is mounted on the sliding plate 11.

[0035] The tension assembly 40 of this invention is mounted on the frame 10 and located between the guide roller 50 and the inkjet assembly 30 to maintain stable tension during fabric conveying. Specifically, it includes a support 41, a buoyancy roller 42, and a fixed roller 43: the support 41 is a frame structure, and its bottom is fixed to the frame 10 by bolts; there are two fixed rollers 43, which are rotatably mounted on both sides of the top of the support 41 via bearing seats (the axis is parallel to the axis of the guide roller 50); the vertical beams on both sides of the support 41 are provided with grooves 411 (e.g., waist-shaped grooves) along the height direction, and the two ends of the buoyancy roller 42 are embedded in the grooves 411 and can slide up and down along the grooves 411.

[0036] After the fabric is drawn out from the guide roller 50, it first passes under a fixed roller 43, then moves upwards over the buoyancy roller 42, and finally passes under another fixed roller 43 before entering the dyeing area of ​​the inkjet assembly 30. During fabric feeding, the buoyancy roller 42 slides adaptively up and down along the chute 411 under the tension of the fabric, applying stable tension to the fabric through its own gravity or preload, thus preventing the fabric from wrinkling or loosening.

[0037] Furthermore, a cleaning and humidifying device 60 (located on the non-dyeing working position side of the inkjet assembly 30) is also mounted on the frame 10 between adjacent main beams 20 of this utility model via a bracket. The cleaning and humidifying device 60 is equipped with a cleaning nozzle and a moisturizing sponge (or an atomizing moisturizing device). When the inkjet assembly 30 completes a dyeing operation or pauses, it can move along the guide rail 21 to the corresponding position of the cleaning and humidifying device 60. The cleaning and humidifying device 60 cleans the inkjet head 31 of residual ink through the cleaning nozzle and moisturizes the surface of the inkjet head 31 through the moisturizing sponge or atomization method, so as to prevent the inkjet head 31 from clogging or drying out and ensure the stability of subsequent inkjet printing.

[0038] After the fabric to be dyed is released by the unwinding mechanism, it is first guided by the guide roller 50 on the slide plate 11 at the bottom of the frame 10 and the entry angle is adjusted. Then the fabric enters the tension assembly 40 and passes under the fixed roller 43 on one side, above the buoyancy roller 42 and under the fixed roller 43 on the other side in sequence. Under the action of the buoyancy roller 42, the fabric maintains stable tension. Then the fabric is flattened and enters between the two inkjet assemblies 30. The two inkjet heads 31 simultaneously print and dye the front and back of the fabric. The dyed fabric continues to be conveyed to subsequent drying and other processes.

[0039] If the inkjet head 31 needs maintenance during the dyeing process, the inkjet assembly 30 can be controlled to move along the guide rail 21 to the cleaning and humidifying unit 60 to complete the cleaning and humidifying operation.

[0040] In this embodiment, the tension component 40 maintains stable fabric tension to prevent wrinkling; combined with the symmetrically arranged inkjet components 30, it achieves simultaneous dyeing on both sides, effectively ensuring dyeing uniformity and stability and reducing the occurrence of color patches; the cleaning and humidifying unit 60 further ensures the long-term stable operation of the inkjet head 31 and improves dyeing reliability.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

[0042] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A single pass digital dyeing apparatus for textiles, characterized in that, The device includes a frame, inkjet units, main beams, and a tension assembly. Two main beams are mounted parallel to each other on the frame. Guide rails are provided on the main beams. The bottom of each inkjet unit is provided with a slider that matches the guide rails. A guide roller is provided at the bottom of the frame. The fabric passes through the guide roller, around the tension assembly, and is threaded between the two main beams. The inkjet heads of the two inkjet units are arranged opposite each other, and the fabric is positioned between the two inkjet heads.

2. A single pass digital dyeing apparatus for textiles as claimed in claim 1 wherein, The tension assembly includes a support, a buoyancy roller, and a fixed roller. The support and the fixed roller are respectively mounted on the frame. The fixed roller is located on both sides of the top of the support. The support is provided with a sliding groove, and the two ends of the buoyancy roller are mounted on the sliding groove.

3. A single pass digital dyeing apparatus for textiles as claimed in claim 1, wherein, The inkjet assembly has a sliding plate at its bottom, and a slider is mounted on the sliding plate.

4. A single pass digital dyeing apparatus for textiles as claimed in claim 1, wherein, A cleaning and humidifying device is also mounted on the frame between adjacent beams, and the inkjet head of the inkjet assembly interacts with the cleaning and humidifying device.

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