Coloring apparatus of a waterless dyeing system

Abstract

A coloring apparatus of a waterless dyeing system includes at least two ink supply units, an ink storage tank, an ink jet unit, and at least two pump units. Each of the ink supply units includes an ink supply tank and an ink supply conduit connected to the ink supply tank. The ink storage tank is connected to the ink supply conduits. The ink jet unit includes an ink outlet conduit connected to the ink storage tank and a flow channel connected to the ink outlet conduit. The pump units are respectively arranged in the ink supply conduits. Each of the pump units includes, in sequence according to the flow direction of the ink, a flow-adjustable input pump, a temporary storage box connected to the input pump, and a flow-adjustable output pump connected to the temporary storage box. The combination of the output pumps and the input pumps maintains the ink level in the temporary storage boxes at a certain height, normalizes the liquid pressure of the temporary storage boxes to the output pumps, and improves the accuracy and quality of color mixing and dyeing.

Description

Technical Field

[0001] This invention relates to a coloring apparatus, and more particularly to a coloring apparatus for an anhydrous dyeing system. Background Technology

[0002] An existing dyeing apparatus for dyeing yarn includes a plurality of ink tanks, an ink mixing tank, an ink dispensing device, a plurality of pipes respectively disposed between the ink tanks and the ink mixing tank and between the ink mixing tank and the ink dispensing device, and a plurality of pumps respectively disposed in the pipes.

[0003] According to a predetermined color, the pumps are used to transfer the ink in the ink tanks to the mixing tank for mixing, and output the ink in the mixing tank to the ink dispensing device, which then outputs the ink to the yarn for dyeing.

[0004] However, because the actual lengths of each pipeline vary, and the ink volume in the ink tanks and mixing tank changes due to consumption or replenishment, the output liquid pressure changes accordingly. Therefore, it cannot be guaranteed that the ink in each ink tank will maintain a precise flow rate to the mixing tank, resulting in a significant color difference between the mixed ink and the intended color. Furthermore, it cannot be guaranteed that the ink in the mixing tank will maintain a precise flow rate to the yarn via the ink dispensing device, leading to uneven dyeing results and a decline in yarn dyeing quality. Summary of the Invention

[0005] Therefore, the object of the present invention is to provide a coloring apparatus for an anhydrous dyeing system that can improve upon at least one of the aforementioned disadvantages.

[0006] A coloring apparatus for an anhydrous dyeing system, used to output ink onto a material to be dyed, the coloring apparatus comprising: at least two ink supply units, each ink supply unit including an ink tank for containing ink and an ink supply conduit connected to the ink tank; an ink reservoir located downstream of the ink supply units and connected to the ink supply conduits; an inkjet unit located downstream of the ink reservoir and including at least one ink outlet conduit connected to the ink reservoir and at least one flow channel connected to the ink outlet conduit for outputting ink to the material to be dyed; and at least two pump units respectively disposed in the ink supply conduits, each pump unit including, in sequence according to the ink flow direction, a flow-adjustable input pump, a temporary storage box connected to the input pump, and a flow-adjustable output pump connected to the temporary storage box.

[0007] Furthermore, the inkjet unit includes a plurality of flow channels and a plurality of ink outlet conduits respectively connected between the flow channels and the ink reservoir, and the coloring device of the waterless dyeing system includes a plurality of pump units respectively disposed in the ink supply conduits and the ink outlet conduits.

[0008] Furthermore, the material to be dyed includes a plurality of yarns, and the inkjet unit further includes a lower seat and an upper seat connected to the upper side of the lower seat in a vertical direction. The lower seat and the upper seat together define a plurality of channels extending along a first axis transverse to the vertical direction and spaced apart from the first axis along a second axis transverse to the vertical direction. The lower seat has a first outer surface opposite to the upper seat in the vertical direction, and the upper seat has a second outer surface opposite to the first outer surface in the vertical direction. The channels can be divided into a plurality of first lower channels formed in the lower seat and extending from the channels to the first outer surface, and a plurality of first upper channels formed in the upper seat and extending from the channels to the second outer surface. The temporary storage boxes located upstream of the first upper channels are at the same height, and the temporary storage boxes located upstream of the first lower channels are at the same height.

[0009] Furthermore, the first upper flow channel and the first lower flow channel extend along the vertical direction.

[0010] Furthermore, the lower body also has a plurality of ink discharge channels that are respectively connected to the channels, each of the ink discharge channels being used to discharge the ink in its respective channel.

[0011] Furthermore, the temporary storage boxes located upstream of these flow channels are at the same height.

[0012] Furthermore, the temporary storage boxes located upstream of the ink reservoir are at the same height.

[0013] Furthermore, each of the pump units is adjacent to the ink reservoir relative to its respective ink supply tank.

[0014] Furthermore, each pump unit also includes a level gauge disposed in the storage box, and the coloring device of the anhydrous dyeing system also includes a control unit electrically connected to the input pumps, the output pumps and the level gauges, the control unit being used to control the flow rate of the input pump and the output pump of each pump unit so that the ink level in the storage box is maintained at a target height.

[0015] Furthermore, it also includes a stirring unit disposed in the ink reservoir and used to agitate the ink within the ink reservoir.

[0016] Furthermore, it also includes a temperature control unit disposed in the ink reservoir. The temperature control unit includes a heating element disposed in the ink reservoir for heating the ink in the ink reservoir, and a temperature sensor disposed in the ink reservoir for measuring the temperature of the ink in the ink reservoir. The coloring device of the waterless dyeing system also includes a control unit electrically connected to the input pumps, the output pumps, the heating element and the temperature sensor. The control unit is used to control the flow rate of the input pumps and the output pumps to maintain the ink level in the temporary storage tank at a target height. The control unit can control the heating element to heat the ink in the ink reservoir to a target temperature based on the temperature value detected by the temperature sensor.

[0017] In summary, by setting up these temporary storage boxes and ensuring that the ink contained within them is maintained at a constant level through the combination of the output pumps and the input pumps, the liquid pressure from the temporary storage boxes to the output pumps can be normalized. Therefore, these pump units can precisely control the ink flow rate delivered to the ink reservoir, reducing ink delivery flow deviations and improving the accuracy and quality of ink mixing and color application on the substrate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a first embodiment of the coloring device of the waterless dyeing system of the present invention, showing the passage of multiple yarns;

[0019] Figure 2 This is a schematic diagram of a plurality of channels of an inkjet unit in the first embodiment through which the yarns pass;

[0020] Figure 3 This is a block diagram of the first embodiment;

[0021] Figure 4 This is an exploded perspective view of a lower seat and an upper seat of the inkjet unit in the first embodiment.

[0022] Figure 5 This is a partial cross-sectional schematic diagram of the first embodiment viewed from another angle;

[0023] Figure 6 This is a schematic diagram of a lower seat, an upper seat, and a plurality of inkjet modules installed on the lower seat and the upper seat, which is a second embodiment of the coloring device of the waterless dyeing system of the present invention.

[0024] Figure 7 This is a schematic diagram of the lower seat, the upper seat, and the inkjet modules of the second embodiment viewed from another angle.

[0025] Symbol Explanation

[0026] 1: Ink supply unit; 11: Ink tank; 12: Ink supply conduit; 2: Ink reservoir.

[0027] 3: Stirring unit; 31: Impeller; 32: Motor; 4: Temperature control unit

[0028] 41: Heating element; 42: Temperature sensor; 5: Inkjet unit; 51: Lower body

[0029] 511: First inner side surface; 512: First outer side surface; 513: Lower groove; 514: First lower flow channel; 515: Second lower flow channel; 516: Ink discharge channel; 517: First mounting groove; 52: Upper seat.

[0030] 521: Second inner side surface; 522: Second outer side surface; 523: Upper groove; 524: First upper flow channel; 525: Second upper flow channel; 53, 53': Channel; 526: Second mounting groove; 54: Ink outlet conduit.

[0031] 55: Nozzle assembly; 551: Body section; 552: Print head; 56: Ink discharge conduit.

[0032] 57: Suction device; 58: Inkjet module; 581: Inkjet flow channel; 59: Piping module

[0033] 6,6': Pump unit; 61: Input pump; 62,62',62”: Temporary storage box

[0034] 63: Scale; 64: Level gauge; 65: Output pump; 7: Control unit; 8: Material to be dyed; 81: Yarn; X: First axial direction.

[0035] Y: Second axis; Z: Vertical direction Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] See Figures 1 to 3 A first embodiment of the coloring apparatus of the waterless dyeing system of the present invention is used to output ink to a workpiece 8 to be dyed, the workpiece comprising a plurality of yarns 81. The yarns 81 may be made of polyester, nylon, TPU, TPEE, cotton yarn, polypropylene or acrylic, etc.

[0038] The coloring equipment of the waterless dyeing system includes multiple ink supply units 1, an ink storage tank 2, a stirring unit 3, a temperature control unit 4, an inkjet unit 5, multiple pump units 6, and a control unit 7.

[0039] The ink supply units 1 are used to output ink of different colors to the ink reservoir 2. Each ink supply unit 1 includes an ink tank 11 for containing ink and an ink supply conduit 12 connecting the ink tank 11 and the ink reservoir 2. In this embodiment, there are five ink tanks 11. Four of the ink tanks 11 are used to contain four different colors of ink corresponding to the four colors of CMYK printing, and the other is used to contain transparent (or colorless) ink. C is blue, M is red, Y is yellow, and K is black. In other variations of this embodiment, the color of the ink and the number of ink tanks 11 are not limited. The user can also choose three ink tanks 11 to contain three different colors of RGB ink, where R is red, G is green, and B is blue.

[0040] The ink reservoir 2 is located downstream of the ink supply unit 1. The ink reservoir 2 is connected to the ink supply conduits 12 and is used to receive and store ink from the ink supply tanks 11.

[0041] The stirring unit 3 is disposed in the ink tank 2 and is used to stir and mix the ink in the ink tank 2. The stirring unit 3 includes an impeller 31 that is rotatably disposed in the ink tank 2 and is used to stir the ink, and a motor 32 disposed in the ink tank 2 and is used to drive the impeller 31 to rotate.

[0042] The temperature control unit 4 includes a heating element 41 disposed in the ink reservoir 2 for heating the ink inside the ink reservoir 2, and a temperature sensor 42 disposed in the ink reservoir 2 for measuring the temperature of the ink inside the ink reservoir 2. The heating element 41 may be an electric heating tube or an electric heating plate.

[0043] See Figure 1 , Figure 2 ,and Figure 4 The inkjet unit 5 is located downstream of the ink reservoir 2. The inkjet unit 5 includes a lower base 51, an upper base 52 connected to the upper side of the lower base 51 along a vertical direction Z, a plurality of ink outlet conduits 54 disposed in the ink reservoir 2, a plurality of nozzle devices 55 disposed on the lower base 51 and the upper base 52 and respectively communicating with the ink outlet conduits 54, and a plurality of ink discharge conduits 56 disposed on the lower base 51. Figure 1 The icon angle only shows one of the ink discharge conduits 56, and a suction device 57 connecting the ink discharge conduits 56. The suction device 57 may include different types of pumps.

[0044] See Figure 2 , Figure 4 ,and Figure 5The lower seat 51 has a first inner surface 511 facing the upper seat 52 along the vertical direction Z, a first outer surface 512 opposite to the first inner surface 511 along the vertical direction Z, a plurality of lower grooves 513 formed on the first inner surface 511, a plurality of first lower channels 514 extending from the first outer surface 512 to the lower grooves 513, a plurality of second lower channels 515 extending from the first outer surface 512 to the lower grooves 513, and a plurality of ink discharge channels 516 extending from the first outer surface 512 to the lower grooves 513. The lower grooves 513 extend along a first axial direction X transverse to the vertical direction Z and are spaced apart along a second axial direction Y transverse to the vertical direction Z and the first axial direction X. Each first lower channel 514, each second lower channel 515, and each ink discharge channel 516 extends along the vertical direction Z. Each of the second downstream channels 515 is located between its respective first downstream channel 514 and its respective ink discharge channel 516. In this embodiment, the first axial direction X is perpendicular to the second axial direction Y and perpendicular to the vertical direction Z.

[0045] The upper body 52 has a second inner side 521 abutting against the first inner side 511, a second outer side 522 opposite to the second inner side 521 along the vertical direction Z, a plurality of upper grooves 523 formed on the second inner side 521, a plurality of first upper channels 524 extending from the second outer side 522 to the upper grooves 523, and a plurality of second upper channels 525 extending from the second outer side 522 to the upper grooves 523. The upper grooves 523 extend along the first axial direction X and are spaced apart along the second axial direction Y. Each upper groove 523 and its respective lower groove 513 combine to form a channel 53. Each first upper channel 524 and each second upper channel 525 extend along the vertical direction Z. Each first upper channel 524 faces its respective first lower channel 514. Each second upper channel 525 faces its respective second lower channel 515.

[0046] The nozzle devices 55 are respectively disposed in the first upper flow channel 524, the second upper flow channel 525, the first lower flow channel 514, and the second lower flow channel 515. Each nozzle device 55 has a body portion 551 that is remote from the corresponding channel 53 and communicates with its respective ink outlet conduit 54, and a nozzle head 552 that communicates with the body portion 551 and extends to the corresponding channel 53. Each body portion 551 has an external thread (not shown) formed on its outer side to be screwed into its respective flow channel (the first upper flow channel 524, the second upper flow channel 525, the first lower flow channel 514, or the second lower flow channel 515). Each nozzle head 552 communicates with its respective body portion 551 to output ink from its respective ink outlet conduit 54 to its respective channel 53.

[0047] It should be noted that the nozzle device 55 may also be of different types of inkjet structures and is not limited to this embodiment. In other variations of this embodiment, the nozzle device 55 may also be a printhead, an atomizer, or a thermal transfer or direct-injection inkjet head.

[0048] See Figure 1 , Figure 2 ,and Figure 5 The channels 53 are respectively for the yarns 81 to pass through. The inkjet unit 5 can output ink from the ink tank 2 to the yarns 81 through the first upper channel 524, the second upper channel 525, the first lower channel 514 and the second lower channel 515.

[0049] The ink discharge conduits 56 are respectively connected to the ink discharge channels 516, and the suction device 57 is used to suck out excess ink in the channels 53 through the ink discharge channels 516 and the ink discharge conduits 56.

[0050] The pump units 6 are respectively disposed on the ink supply conduits 12 and the ink outlet conduits 54. The pump units 6 located on the ink supply conduits 12 are adjacent to the ink reservoir 2. The pump units 6 located on the ink outlet conduits 54 are respectively adjacent to the first upper flow channel 524, the second upper flow channel 525, the first lower flow channel 514, and the second lower flow channel 515.

[0051] Each pump unit 6 includes an adjustable-flow input pump 61, a storage container 62 made of a light-transmitting material for holding ink, a scale 63 disposed on the storage container 62, a level gauge 64 disposed on the storage container 62 for measuring the ink level in the storage container 62, and an adjustable-flow output pump 65. The input pump 61, the storage container 62, and the output pump 65 are arranged sequentially in a frame (not shown) according to the ink flow direction. In this embodiment, each input pump 61 and each output pump 65 are precision micro-pumps, which may be hose pumps, gear pumps, screw pumps, servo pumps, or piezoelectric pumps, etc.

[0052] The temporary storage boxes 62 located upstream of the ink reservoir 2 are at the same height. The temporary storage boxes 62 located upstream of the first upper flow channel 524 and the second upper flow channel 525 are at the same height. The temporary storage boxes 62 located upstream of the first lower flow channel 514 and the second lower flow channel 515 are at the same height.

[0053] See Figure 2 ,and Figure 3The control unit 7 is electrically connected to the input pumps 61, the output pumps 65, the level gauges 64, and the temperature sensor 42. In this embodiment, the control unit 7 is a programmable logic controller (PLC). The control unit 7 can control the flow rate of each input pump 61 and each output pump 65 based on the ink level measured by each level gauge 64, so that the ink level in each temporary storage container 62 is maintained at a target height. Alternatively, the user can manually adjust the flow rate of the corresponding input pump 61 and the corresponding output pump 65, and visually observe the corresponding scale 63 to maintain the ink level in the corresponding temporary storage container 62 within a certain range.

[0054] The control unit 7 can also control the heating element 41 to heat the ink in the ink tank 2 to a specified temperature based on the ink temperature detected by the temperature sensor 42, thereby improving the dyeing efficiency and uniformity. For example, nylon fibers begin to absorb ink when the ink temperature reaches 40°C. As the temperature increases, the dyeing rate increases, and when the ink temperature reaches 100°C, the ink transfer can be basically completed, thereby improving the uniformity of dyeing.

[0055] See Figure 2 , Figure 3 ,and Figure 5 The following describes the process of mixing ink in the coloring apparatus of the waterless dyeing system of the present invention, and outputting the ink to the yarns 81. The process includes the following steps.

[0056] Step S1: Analyze a target color chart or image file using image processing software to obtain the mixing ratios of the four CMYK inks. In this embodiment, the image processing software is Photoshop.

[0057] Step S2: Ink of any color is injected into the ink reservoir 2 via the ink supply tanks 11.

[0058] Step S3, define one of the channels 53 as a designated channel 53' (see Figure 5 The first upper channel 524 corresponding to the designated channel 53' is defined as a first designated channel 524', and the pump unit 6 corresponding to the first designated channel 524' is defined as a first designated pump unit 6'. The temporary storage box 62 containing CMYK color ink is defined as a non-transparent ink temporary storage box 62', and the temporary storage box 62 containing transparent ink is defined as a transparent ink temporary storage box 62.

[0059] Step S4: A target yarn 81 is fed through the designated channel 53' at a certain speed.

[0060] Step S5: Turn on and adjust the input pump 61 and output pump 65 of the first designated pump unit 6' to maintain the liquid level in the temporary storage box 62 of the first designated pump unit 6' at a target height, and to ensure that the ink absorbed by the target yarn 81 reaches a saturation absorption amount, resulting in uniform coloring. The flow rate of the output pump 65 of the first designated pump unit 6' is defined as a designated output flow rate. The saturation absorption amount represents the maximum amount of ink that the target yarn 81 can absorb per unit length. When the ink absorbed by the target yarn 81 is below the saturation absorption amount, the target yarn 81 will exhibit intermittent coloring. When the ink absorbed by the target yarn 81 is above the saturation absorption amount, the target yarn 81 will exhibit ink seepage or dripping. Therefore, when the ink absorbed by the target yarn 81 is neither too low nor too high, it can be determined that the ink absorbed by the target yarn 81 has reached the saturation absorption amount. Different yarns 81 have different saturation absorption capacities due to various factors such as thickness, material, and moisture content. The aforementioned process can quickly and effectively obtain the saturation absorption capacities of the yarn 81, thereby obtaining the ink flow rate required to be output to the target yarn 81 at a specific yarn feeding speed.

[0061] Step S6: Turn on the input pump 61 and the output pump 65 corresponding to the transparent ink storage box 62” to flush the ink in the ink supply conduit 12, the ink storage box 2 and the ink outlet conduit 54, and turn on the output pump 65 of the first designated pump unit 6' to deliver the ink to the target yarn 81 until the target yarn 81 becomes transparent, confirming that the transparent ink has flushed away the residual ink.

[0062] Step S7: Turn off the input pumps 61 and output pumps 65 located on the ink outlet conduits 54. Turn on and adjust the output pumps 65 and input pumps 61 corresponding to the non-transparent ink storage cartridges 62' according to the color mixing ratio, so that the ink in the non-transparent ink storage cartridges 62' is maintained at a target height, and output the ink corresponding to the color mixing ratio to the ink reservoir 2.

[0063] Step S8: Turn on and adjust the output pump 65 and the input pump 61 corresponding to the transparent ink storage box 62” to maintain the ink in the transparent ink storage box 62” at a target height, and confirm that the ink color concentration in the ink tank 2 meets the user's desired color, and define the flow rate of the output pump 65 corresponding to the non-transparent ink storage box 62” and the transparent ink storage box 62” as a mixing flow rate.

[0064] Step S9: Turn off the input pumps 61 and output pumps 65 located on the ink supply conduits 12. Allow the plurality of yarns 81 to pass through the channels 53 at the yarn feed speed. Store the target height, the specified output flow rate, and the ink mixing flow rate in the control unit 7, and set the desired ink flow path (the first upper flow path 524, the second upper flow path 525, the first lower flow path 514, or the second lower flow path 515) in the inkjet unit 5. The control unit 7 distributes the ink from the ink tank 2 to the corresponding flow paths and outputs it to the channels 53 to dye the yarns 81 according to the saturation absorption. When the ink in the ink tank 2 is almost depleted, turn off the input pumps 61 and output pumps 65 located on the ink outlet conduits 54, and return to step S8 to turn on the input pumps 61 and output pumps 65 located on the ink supply conduits 12 to mix ink again.

[0065] For each channel 53, the user can select the corresponding first upper channel 524 and the corresponding first lower channel 514 to output ink for dyeing, or further select the corresponding second upper channel 525 and the corresponding second lower channel 515 to achieve a more complete and uniform dyeing effect by outputting ink through four channels. However, it should be noted that the total ink flow rate output by different numbers of channels must be the same as the specified output flow rate so that the corresponding yarn 81 can reach the saturation absorption capacity of ink.

[0066] In other variations of this embodiment, a lower limit and an upper limit can be defined for the ink level in each of the temporary storage boxes 62, and the control unit 7 can be set to control the ink level in each of the temporary storage boxes 62 to be between the respective lower limit and upper limit.

[0067] When the ink in one of the storage cartridges 62 is maintained at a certain height range, it means that the liquid pressure input to the corresponding output pump 65 via the storage cartridge 62 is maintained within a certain range. Therefore, the design of the storage cartridge 62 can keep the ink pressure input to the output pump 65 stable, so that the flow rate of the ink output by the output pump 65 remains accurate and stable, reducing the flow rate deviation of ink delivery.

[0068] Therefore, the pump unit 6 can precisely and stably control the ink flow rate and ratio output to the ink reservoir 2, achieving accurate and stable color mixing quality. Furthermore, it can also precisely and stably control the amount of ink output to the yarns 81, ensuring that the yarns 81 are maintained in a saturated absorption state, thus improving dyeing quality.

[0069] It should be noted that if the structure of the inkjet unit 5 is changed, the coloring device of the waterless dyeing system of the present invention can also be used to output ink to different types of materials to be dyed, and can also achieve the effects of accurate color mixing and accurate control of ink flow rate output to the material to be dyed.

[0070] See Figure 6 ,and Figure 7 This is a second embodiment of the coloring device for the anhydrous dyeing system of the present invention. (See also...) Figure 5 The difference from the first embodiment is that two first mounting grooves 517 are formed on the first outer surface 512 of the lower seat 51. Two second mounting grooves 526 are formed on the second outer surface 522 of the upper seat 52. The inkjet unit 5 does not include the ink outlet conduits 54 and the pump units 6 disposed on the ink outlet conduits. The inkjet unit 5 also includes four inkjet modules 58 respectively disposed in the first mounting grooves 517 and the second mounting grooves 526, a pipeline module 59 disposed between the inkjet modules 58 and the ink reservoir 2, and a piezoelectric switch module (not shown) disposed in the inkjet modules 58. Each inkjet module 58 forms a plurality of inkjet channels 581 respectively communicating with the channels 53. By controlling the piezoelectric switch module, the ink in the ink reservoir 2 can be transported through the pipeline module 59 and the inkjet channels 581 to the yarns 81 of the channels 53.

[0071] In summary, the coloring equipment of the waterless dyeing system of the present invention has the following advantages.

[0072] 1. By setting up temporary storage boxes 62 and ensuring that the ink contained in the temporary storage boxes 62 is maintained at a certain level through the combination of output pumps 65 and input pumps 61, the liquid pressure from each temporary storage box 62 to the corresponding output pump 65 can be normalized. Therefore, even if the ink pressure output by the ink supply unit 1 or the ink storage tank 2 changes, or if the lengths of the ink supply conduits 12 and the ink outlet conduits 54 are different, the pump units 6 can still accurately control the ink flow rate delivered to the ink storage tank 2 or the channels 53, reduce the flow rate deviation of ink delivery, improve the accuracy and quality of ink mixing and color dyeing of the yarns 81, and ensure that the ink absorbed by the yarns 81 is maintained at a saturated absorption level, avoiding the problem of insufficient or excessive ink absorption by the yarns 81, thereby improving the dyeing quality of the yarns 81.

[0073] 2. By adjusting the pump units 6 to maintain the temporary storage boxes 62 located upstream of the ink reservoir 2 at the same height, it ensures that the liquid pressure of the ink received by the output pumps 65 located upstream of the ink reservoir 2 is consistent, so that the ink flow rate output to the ink reservoir 2 can be stably and accurately controlled, and deviations are less likely to occur, thus ensuring a stable ink ratio. Setting the temporary storage boxes 62 located upstream of the first upper flow channel 524 and the second upper flow channel 525 at the same height ensures that the liquid pressure of the ink received by the output pumps 65 located upstream of the first upper flow channel 524 and the second upper flow channel 525 is consistent, so that the ink flow rate output to the ink reservoir 2 can be stably and accurately controlled, and deviations are less likely to occur. By setting the temporary storage boxes 62 located upstream of the first downflow channel 514 and the second downflow channel 515 at the same height, it is ensured that the liquid pressure of the ink received by the output pumps 65 located upstream of the first downflow channel 514 and the second downflow channel 515 is consistent, so that the ink flow rate output to the first downflow channel 514 and the second downflow channel 515 can be stably and accurately controlled, and it is not easy to produce deviation.

[0074] Third, since the yarns 81 will rotate or shake during the conveying process, the channels 53 defined by the lower seat 51 and the upper seat 52 restrict the yarns 81 to a closed space. By outputting ink from above and below the yarns 81 respectively, the uniformity of ink spraying can be greatly improved, and the ink can be prevented from spreading to the outside. Each yarn 81 is immersed in the ink in the corresponding channel 53, ensuring that the output ink can be absorbed by the yarns 81 to the maximum extent and avoiding ink waste.

[0075] Fourth, the first upper flow channel 524, the second upper flow channel 525, the first lower flow channel 514 and the second lower flow channel 515 extend along the vertical direction Z, which can ensure that the ink can be smoothly delivered to the channels 53 through the nozzle devices 55 with the shortest path, reducing the resistance loss of ink flow.

[0076] Fifth, the ink discharge channels 516 can discharge excess ink from the channels 53, preventing the yarns 81 from absorbing excessive ink.

[0077] The above-described embodiments are merely two examples of implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A coloring apparatus for an anhydrous dyeing system, used to output ink onto a material to be dyed, the material comprising a plurality of yarns, characterized in that: The coloring device of the waterless dyeing system includes: at least two ink supply units, each ink supply unit including an ink tank for containing ink and an ink supply conduit connected to the ink tank; an ink reservoir located downstream of the ink supply unit and connected to the ink supply conduit; an inkjet unit located downstream of the ink reservoir and including a plurality of flow channels, a plurality of ink outlet conduits respectively connecting the flow channels and the ink reservoir, a lower seat, and an upper seat connected to the upper side of the lower seat along a vertical direction, the flow channels connecting to the ink outlet conduits to output ink to the object to be dyed, the lower seat and the upper seat jointly defining a plurality of channels extending along a first axis transverse to the vertical direction and spaced apart along a second axis transverse to the vertical direction and the first axis, the lower seat having a channel opposite to the vertical direction. The upper body has a first outer side surface and a second outer side surface opposite to the first outer side surface in the vertical direction. The flow channel can be divided into a plurality of first lower flow channels formed in the lower body and extending from the channel to the first outer side surface, and a plurality of first upper flow channels formed in the upper body and extending from the channel to the second outer side surface; and a plurality of pump units, respectively disposed in the ink supply conduit and the ink outlet conduit. Each pump unit includes, in sequence according to the ink flow direction, a flow-adjustable input pump, a temporary storage box connected to the input pump, and a flow-adjustable output pump connected to the temporary storage box. The temporary storage boxes on the ink outlet conduit located upstream of the first upper flow channel are at the same height, and the temporary storage boxes on the ink outlet conduit located upstream of the first lower flow channel are at the same height.

2. The coloring device of the anhydrous dyeing system as described in claim 1, characterized in that, The first upper flow channel and the first lower flow channel extend along the vertical direction.

3. The coloring device of the anhydrous dyeing system as described in claim 1, characterized in that, The lower body also has a plurality of ink discharge channels that are respectively connected to the channel, each of which is used to discharge the ink in its respective channel.

4. The coloring apparatus of the anhydrous dyeing system as described in claim 1, characterized in that, The temporary storage box, located upstream of the ink reservoir, is at the same height.

5. The coloring apparatus of the anhydrous dyeing system as described in claim 1, characterized in that, The pump unit on the ink supply conduit is adjacent to the ink reservoir relative to its respective ink supply tank.

6. The coloring apparatus of the anhydrous dyeing system as described in claim 1, characterized in that, Each pump unit also includes a level gauge disposed in the storage box. The coloring device of the anhydrous dyeing system also includes a control unit electrically connected to the input pump, the output pump and the level gauge. The control unit is used to control the flow rate of the input pump and the output pump of each pump unit so that the ink level in the storage box is maintained at a target height.

7. The coloring apparatus of the anhydrous dyeing system as described in claim 1, characterized in that, It also includes a stirring unit disposed in the ink reservoir and used to agitate the ink in the ink reservoir.

8. The coloring apparatus of the anhydrous dyeing system as described in claim 1, characterized in that, It also includes a temperature control unit disposed in the ink reservoir. The temperature control unit includes a heating element disposed in the ink reservoir for heating the ink in the ink reservoir, and a temperature sensor disposed in the ink reservoir for measuring the temperature of the ink in the ink reservoir. The coloring device of the waterless dyeing system also includes a control unit electrically connected to the input pump, the output pump, the heating element and the temperature sensor. The control unit is used to control the flow rate of the input pump and the output pump to maintain the ink level in the temporary storage box at a target height. The control unit can control the heating element to heat the ink in the ink reservoir to a target temperature based on the temperature value detected by the temperature sensor.

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