Chromatic aberration correcting device for fabric dyeing

Abstract

The utility model discloses a color difference correcting device for fabric dyeing, which belongs to the technical field of fabric dyeing devices and comprises a base. The unwinding assembly and the winding assembly are arranged at an interval, and a spraying area is arranged between the unwinding assembly and the winding assembly; the spraying assembly is arranged between the unwinding assembly and the winding assembly, the spraying assembly is provided with a plurality of spraying heads, and the spraying heads are suitable for spraying dye towards the spraying area; the multiple spray heads are movably provided with pressure adjusting devices respectively, and the pressure adjusting devices and the spray heads selectively move towards or away from each other so as to adjust the spraying amount of the spray heads. According to the color difference correction device for fabric dyeing, the plurality of spray heads of the spray assembly are suitable for spraying different spraying amounts to different areas of unqualified fabrics, so that less dye is sprayed to the areas with darker colors of the fabrics, more dye is sprayed to the areas with lighter colors of the fabrics, and the color difference correction device for fabric dyeing is more uniform in color difference. Therefore, color difference correction is carried out on the unqualified fabric, and then the unqualified fabric is corrected into the qualified fabric.

Description

Technical Field

[0001] The utility model belongs to the technical field of fabric dyeing devices, and in particular relates to a color difference correction device for fabric dyeing. Background Art

[0002] In the related art, fabrics are dyed by immersion dyeing to achieve the diversification of fabric colors and meet the different needs of customers. In the prior art, color difference between the center and the edge may occur during the fabric dyeing process, that is, in the width direction, the color of the middle part of the fabric is inconsistent with that of the two ends, which is mainly manifested in that the color of the middle part of the fabric is lighter than that of the two sides, or the color of the middle part of the fabric is darker than that of the two sides. Fabrics with color difference between the center and the edge are usually discarded, resulting in serious waste of fabrics. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a color difference correction device for fabric dyeing. According to the color difference correction device for fabric dyeing designed by the utility model, multiple nozzles of the spray assembly are suitable for spraying different areas of unqualified fabric with different spraying amounts, so that less dye is sprayed on the darker areas of the fabric and more dye is sprayed on the lighter areas of the fabric, thereby achieving color difference correction for unqualified fabrics, and then correcting the unqualified fabrics into qualified fabrics.

[0004] The utility model provides a color difference correction device for fabric dyeing, comprising: a base, a mounting surface is arranged on the base; a unwinding assembly and a rewinding assembly, the unwinding assembly and the rewinding assembly are arranged at intervals on the mounting surface, and a spraying area is arranged between the unwinding assembly and the rewinding assembly; a spraying assembly, the spraying assembly is arranged on the base and located between the unwinding assembly and the rewinding assembly, the spraying assembly has a plurality of nozzles, and the plurality of nozzles are all suitable for facing the spraying area; wherein the nozzles are respectively distributed along the axial direction of the unwinding assembly; wherein the plurality of nozzles are respectively movably provided with pressure regulating devices, and each of the pressure regulating devices and the corresponding nozzles can selectively move toward or away from each other, so as to adjust the gap between the pressure regulating device and the inner peripheral wall of the nozzle, thereby adjusting the spraying amount of the corresponding nozzle.

[0005] According to the color difference correction device for fabric dyeing of the utility model, a spray assembly is arranged between the unwinding assembly and the winding assembly, and multiple nozzles of the spray assembly are suitable for spraying different areas of unqualified fabrics with different spraying amounts, thereby achieving the goal of spraying less dye on areas with darker fabric colors and spraying more dye on areas with lighter fabric colors, thereby achieving color difference correction for unqualified fabrics, and then correcting unqualified fabrics into qualified fabrics, avoiding direct discard of unqualified fabrics, reducing the production cost of fabrics, and improving the production efficiency of the enterprise.

[0006] Furthermore, an active channel and a spray channel connected to each other are provided in the nozzle, the diameter of the active channel is larger than the diameter of the spray channel, at least part of the pressure regulating device is movably accommodated in the active channel, and the pressure regulating device is used to selectively move toward the spray channel.

[0007] Furthermore, the nozzle is provided with an active channel and a spray channel which are connected to each other, the active channel gradually decreases in diameter in the direction toward the spray channel, and at least a part of the pressure regulating device is movably accommodated in the active channel and can be selectively moved toward the spray channel.

[0008] Furthermore, the pressure regulating device includes: a sleeve, one end of which is sleeved on at least a portion of the outer periphery of the nozzle; an intermediate column, which is arranged in the sleeve, and a flow gap is provided between the outer peripheral wall of the intermediate column and the inner peripheral wall of the sleeve; wherein the intermediate column is movably accommodated in the movable channel.

[0009] Furthermore, the spray assembly includes: a shell, a liquid storage chamber is provided in the shell, and a plurality of connection ports respectively connected to the liquid storage chamber are provided on the side of the shell facing the spray area; a nozzle, the nozzle is constructed to correspond one to one to the plurality of connection ports; wherein one end of the sleeve is connected to the nozzle, the other end of the sleeve is connected to the shell, and the spray channel and the liquid storage chamber are connected through the flow gap.

[0010] Furthermore, it also includes: a driving member, the driving member is arranged on the shell, the driving end of the driving member is connected to the nozzle, and the driving member is suitable for driving the nozzle to move toward or away from the shell.

[0011] Furthermore, one end of the sleeve is threadedly connected to the nozzle, and the driving member is configured as a rotary motor, and an output end of the rotary motor is rotatably connected to the nozzle.

[0012] Furthermore, it also includes: a sensor, which is arranged between the unwinding assembly and the spraying assembly and connected to the driving member, and the sensor is suitable for detecting the color difference of the fabric and controlling the operation of the driving member according to the color difference of the fabric.

[0013] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:

[0015] Figure 1 A top view of the correction device of the utility model;

[0016] Figure 2 It is a front view of the spraying assembly of the utility model;

[0017] Figure 3 It is a cross-sectional view of the nozzle and the pressure regulating device of the utility model;

[0018] Figure 4 It is a front view of the pressure regulating device of the utility model.

[0019] The accompanying drawings are marked as follows: 1. Correction device;

[0020] 10. Base;

[0021] 20. Unwinding assembly; 21. Unwinding roller; 22. First supporting seat;

[0022] 30. Winding assembly; 31. Winding roller; 32. Second supporting seat;

[0023] 40. Spraying assembly; 41. Shell; 42. Spray head; 421. Active channel; 422. Spray channel; 43. Pressure regulating device; 431. Casing; 432. Middle column; 433. Connecting rib;

[0024] 50. Oven. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0026] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other examples, in order to avoid obscuring the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0027] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 4 As shown, the utility model provides a color difference correction device 1 for fabric dyeing, comprising: a base 10, a reeling assembly 20, a reeling assembly 30 and a spraying assembly 40, wherein a mounting surface is provided on the base 10, the reeling assembly 20 and the reeling assembly 30 are arranged at intervals on the mounting surface, a spraying area is provided between the reeling assembly 20 and the reeling assembly 30, the spraying assembly 40 is provided on the base 10 and is located between the reeling assembly 20 and the reeling assembly 30, the spraying assembly 40 has a plurality of nozzles 42, the plurality of nozzles 42 are all suitable for spraying dye toward the spraying area and are respectively distributed along the axial direction of the reeling assembly 20, the axial direction of the reeling assembly 20 is parallel to the width direction of the base 10; wherein the plurality of nozzles 42 are respectively movably provided with a pressure regulating device 43, the pressure regulating device 43 and the nozzle 42 can selectively move toward or away from each other to adjust the spraying amount of the nozzle 42.

[0031] In some embodiments, the base 10 is provided with a mounting surface, and the two ends of the mounting surface in the length direction are respectively provided with an unwinding assembly 20 and a winding assembly 30. The unwinding assembly 20 includes: an unwinding roller 21 and two first support seats 22, the two first support seats 22 are respectively provided on the two sides of the mounting surface in the width direction, the unwinding roller 21 is provided between the two first support seats 22, and the two ends of the unwinding roller 21 are respectively rotatably connected to the two first support seats 22; the winding assembly 30 includes: a winding roller 31 and two second support seats 32, the two second support seats 32 are respectively provided on the two sides of the mounting surface in the width direction, the winding roller 31 is provided between the two second support seats 32, and the two ends of the winding roller 31 are respectively rotatably connected to the two second support seats 32.

[0032] It can be understood that the unwinding roller 21 is suitable for unwinding the fabric, and the winding roller 31 is suitable for winding the fabric. The fabric will pass through the spraying area when moving toward the winding roller 31, and when the fabric passes through the spraying area, the multiple nozzles 42 are respectively suitable for spraying dye toward the fabric.

[0033] It is worth noting that, for qualified fabrics, the color distribution of qualified fabrics is uniform and has no color difference, and for unqualified fabrics, the color distribution of unqualified fabrics is uneven and has color difference. The correction device 1 of the present application is suitable for correcting the color difference of unqualified fabrics. When the unqualified fabrics pass through the spraying area, the spraying amount of multiple nozzles 42 can be controlled to control the spraying of different degrees on the areas with color difference of the unqualified fabrics (that is, the areas with darker fabric colors are sprayed with less dye, and the areas with shallower fabric extensions are sprayed with more dye), thereby correcting the color difference of the unqualified fabrics, avoiding the direct discard of unqualified fabrics, reducing the production cost of the fabrics, and improving the production efficiency of the enterprise.

[0034] It is understandable that the plurality of nozzles 42 are respectively provided with a pressure regulating device 43, and the pressure regulating device 43 and the nozzle 42 can selectively move toward or away from each other, and here, the pressure regulating device 43 can move toward the nozzle 42; or the nozzle 42 can move toward the pressure regulating device 43; or the pressure regulating device 43 and the nozzle 42 can move toward or away from each other together, which is not limited here. Of course, the above-mentioned movement of the pressure regulating device 43 toward or away from the nozzle 42 can be that the pressure regulating device 43 simply moves toward or away from the nozzle 42; or the pressure regulating device 43 can rotate relative to the nozzle 42, and the pressure regulating device 43 moves toward or away from the nozzle 42 during the rotation relative to the nozzle 42, which is not limited here.

[0035] It is worth mentioning that in the process of the pressure regulating device 43 and the nozzle 42 approaching each other, the distance between the pressure regulating device 43 and the nozzle 42 becomes smaller, so that the flow rate of the dye passing through the nozzle 42 becomes smaller, and then the spraying amount of the nozzle 42 becomes smaller. At this time, the nozzle 42 is suitable for spraying the area with darker fabric color, and the correction device 1 can perform secondary dyeing on the area with darker fabric color, and the dyeing degree of the darker fabric area is low during the secondary dyeing process; in the process of the pressure regulating device 43 and the nozzle 42 moving away from each other, the distance between the pressure regulating device 43 and the nozzle 42 becomes larger, so that the flow rate of the dye passing through the nozzle 42 becomes larger, and then the spraying amount of the nozzle 42 becomes larger. At this time, the nozzle 42 is suitable for spraying the area with lighter fabric color, and the correction device 1 can perform secondary dyeing on the area with lighter fabric color, and the dyeing degree of the lighter fabric area is high during the secondary dyeing process. Therefore, through the above arrangement, the spraying assembly 40 can perform correction spraying on the fabric with color difference, so as to eliminate the color difference of the fabric, thereby correcting the unqualified fabric to qualified fabric, avoiding the direct discard of the unqualified fabric.

[0036] Preferably, an oven 50 is also provided between the spraying assembly 40 and the winding assembly 30. The fabric is wound up by the winding assembly 30 after passing through the spraying assembly 40 and the oven 50 in sequence. The fabric enters the oven 50 after passing through the spraying assembly 40 and having its color difference corrected by the spraying assembly 40. The oven 50 can bake the fabric to speed up the drying rate of the fabric, avoid letting the fabric dry naturally, and improve the efficiency of the correction device 1 in correcting the color difference of the fabric.

[0037] According to the color difference correction device 1 for fabric dyeing of the utility model, by arranging a spray assembly between the unwinding assembly 20 and the winding assembly 30, the multiple nozzles 42 of the spray assembly are suitable for spraying different areas of the unqualified fabric with different spraying amounts, so that less dye is sprayed on the areas with darker colors of the fabric, and more dye is sprayed on the areas with lighter colors of the fabric, thereby realizing color difference correction of the unqualified fabric, and then correcting the unqualified fabric to qualified fabric, avoiding direct discard of the unqualified fabric, reducing the production cost of the fabric, and improving the production efficiency of the enterprise.

[0038] Embodiment 2:

[0039] In this embodiment, based on the first embodiment, an active channel 421 and a spray channel 422 which are connected to each other are provided in the nozzle 42, the diameter of the active channel 421 is larger than the diameter of the spray channel 422, and at least a part of the pressure regulating device 43 is movably accommodated in the active channel 421 and can be selectively moved toward the spray channel 422.

[0040] In some embodiments, an active channel 421 and a spray channel 422 are provided in the nozzle 42, and the active channel 421 and the spray channel 422 are connected to each other. A nozzle is also provided on the nozzle 42, and the nozzle is connected to the spray channel 422. The dye passes through the active channel 421 and the spray channel 422 in sequence and then is sprayed from the nozzle. It is worth noting that the diameter of the active channel 421 is d1, and the diameter of the spray channel 422 is d2, which satisfies: d1>d2, thereby, there is a step surface between the active channel 421 and the spray channel 422, at least part of the pressure regulating device 43 is movably accommodated in the active channel 421, and the pressure regulating device 43 can selectively move toward or away from the step surface.

[0041] When the portion of the pressure regulating device 43 accommodated in the active channel 421 moves toward the step surface, the gap between the portion of the pressure regulating device 43 accommodated in the active channel 421 and the step surface becomes smaller, thereby reducing the efficiency of the dye entering the spray channel 422, and further reducing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the darker area of ​​the fabric. It is worth noting that since the gap between the portion of the pressure regulating device 43 accommodated in the active channel 421 and the step surface becomes smaller, the pressure of the dye when it is sprayed from the nozzle 42 is relatively large. Therefore, the above-mentioned setting can avoid uneven spraying of the fabric due to the reduced amount of dye sprayed.

[0042] Similarly, when the portion of the pressure regulating device 43 accommodated in the active channel 421 moves away from the step surface, the gap between the portion of the pressure regulating device 43 accommodated in the active channel 421 and the step surface becomes larger, thereby increasing the efficiency of the dye entering the spray channel 422, and further increasing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the lighter color area of ​​the fabric.

[0043] Embodiment three:

[0044] In this embodiment, based on the first embodiment, an active channel 421 and a spray channel 422 which are connected to each other are provided in the nozzle 42, and the diameter of the active channel 421 gradually decreases in the direction toward the spray channel 422, and at least a part of the pressure regulating device 43 is movably accommodated in the active channel 421 and can be selectively moved toward the spray channel 422.

[0045] It can be understood that when the portion of the pressure regulating device 43 accommodated in the active channel 421 moves toward the spray channel 422, the distance between the outer peripheral wall of the portion of the pressure regulating device 43 accommodated in the active channel 421 and the inner peripheral wall of the active channel 421 gradually decreases, thereby reducing the efficiency of the dye entering the spray channel 422, and further reducing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the darker area of ​​the fabric.

[0046] Similarly, when the portion of the pressure regulating device 43 accommodated in the active channel 421 moves away from the spray channel 422, the distance between the outer peripheral wall of the portion of the pressure regulating device 43 accommodated in the active channel 421 and the inner peripheral wall of the active channel 421 gradually increases, thereby increasing the efficiency of the dye entering the spray channel 422, and further increasing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the lighter color area of ​​the fabric.

[0047] Embodiment 4:

[0048] In this embodiment, on the basis of the second or third embodiment, the spray assembly 40 includes: a shell 41, a nozzle 42 and a pressure regulating device 43. A liquid storage chamber is provided in the shell 41. A plurality of connecting ports respectively connected to the liquid storage chamber are provided on the side of the shell 41 facing the spraying area. The nozzle 42 is constructed to correspond one to one to the plurality of connecting ports. The pressure regulating device 43 includes: a sleeve 431 and an intermediate column 432. One end of the sleeve 431 is sleeved on at least part of the periphery of the nozzle 42, and the other end of the sleeve 431 is connected to the shell 41. The intermediate column 432 is arranged in the sleeve 431, and a flow gap is provided between the outer peripheral wall of the intermediate column 432 and the inner peripheral wall of the sleeve 431. The spray channel 422 and the liquid storage chamber are connected through the flow gap, and the intermediate column 432 is movably accommodated in the movable channel 421.

[0049] In some embodiments, the pressure regulating device 43 includes: a sleeve 431 and an intermediate column 432, the intermediate column 432 is arranged in the sleeve 431, and the outer peripheral wall of the intermediate column 432 and the inner peripheral wall of the sleeve 431 are spaced apart from each other, the outer peripheral wall of the intermediate column 432 is provided with a plurality of connecting ribs 433, and the free ends of the plurality of connecting ribs 433 are respectively connected to the inner peripheral wall of the sleeve 431, and a flow gap is defined between the outer peripheral wall of the intermediate column 432 and the inner peripheral wall of the sleeve 431, and the dye passes through the liquid storage chamber, the flow gap, and the spray channel 422 in sequence and is then sprayed out from the nozzle.

[0050] It can be understood that when the sleeve 431 moves toward or away from the nozzle 42, the middle column 432 follows the sleeve 431 to move toward or away from the spray channel 422. When the middle column 432 moves toward the spray channel 422, the gap between the middle column 432 and the step surface becomes smaller, so that the efficiency of the dye entering the spray channel 422 becomes lower, thereby reducing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the area with darker fabric color. Similarly, when the middle column 432 moves away from the spray channel 422, the gap between the middle column 432 and the step surface becomes larger, so that the efficiency of the dye entering the spray channel 422 becomes higher, thereby increasing the amount of dye sprayed from the nozzle. At this time, the nozzle 42 is suitable for spraying toward the area with lighter fabric color.

[0051] Embodiment five:

[0052] In this embodiment, on the basis of the fourth embodiment, the correction device 1 further includes: a driving member, the driving member is arranged on the housing 41, the driving end of the driving member is connected to the nozzle 42, and the driving member is suitable for driving the nozzle 42 to move toward or away from the housing 41. It can be understood that the present application sets a driving member to drive the nozzle 42 to move toward or away from the housing 41, so as to realize the movement of the spray channel 422 and the intermediate column 432 towards or away from each other, thereby reducing or increasing the distance between the intermediate column 432 and the step surface, so as to control the spray amount of the nozzle 42. Compared with manually controlling the change of the spray amount of the nozzle 42, the setting of the driving member in the present application can make the correction device 1 more automated, reduce the work intensity of the operator, and improve the user's satisfaction.

[0053] In some embodiments, the sleeve 431 is threadedly connected to the spray head 42, and the driving member is configured as a rotary motor, which has a rotatable first output end, and the first output end of the rotary motor is rotatably connected to the spray head 42. When the rotary motor is working, the first output end can rotate, and the rotation of the first output end can drive the spray head 42 to rotate relative to the sleeve 431, so as to realize the movement of the spray head 42 toward or away from the sleeve 431, thereby realizing the control of the spraying amount of the spray head 42.

[0054] In other embodiments, the sleeve 431 is sleeved on at least part of the outer periphery of the nozzle 42, and the driving member is configured as a telescopic motor, which has a second output end that can move toward or away from the housing 41, and the second output end is fixedly connected to the nozzle 42. When the telescopic motor is working, the second output end can be moved toward or away from the housing 41, and the nozzle 42 follows the second output end to move toward or away from the housing 41, which is not limited here.

[0055] Preferably, the correction device 1 also includes: a sensor, the sensor is arranged between the unwinding component 20 and the spraying component 40 and connected to the driving part, and the sensor is suitable for detecting the color difference of the fabric and controlling the driving part to work according to the color difference of the fabric. It can be understood that the sensor can detect the color difference of the fabric before passing through the spraying component 40, and the sensor can control the driving part to work according to the color difference of the fabric, thereby realizing the control of the spraying amount of the nozzle 42, avoiding the operator to manually operate the driving part, and reducing the operator's work intensity. At the same time, the present application sets a sensor to control the operation of the driving part, compared with the operator manually operating the driving part, the sensor of the present application can accurately detect the color difference of the fabric and timely control the driving part to work, thereby realizing accurate and timely control of the nozzle 42 to change its own spraying amount, so that the correction device 1 has a better effect on the color difference correction of the fabric and improves the yield rate of the fabric.

[0056] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A color difference correction device for fabric dyeing, characterized in that: include: A base (10), wherein a mounting surface is provided on the base (10); An unwinding assembly (20) and a rewinding assembly (30), wherein the unwinding assembly (20) and the rewinding assembly (30) are arranged on the mounting surface at an interval, and a spraying area is arranged between the unwinding assembly and the rewinding assembly; A spraying assembly (40), the spraying assembly (40) being arranged on the base (10) and located between the unwinding assembly (20) and the winding assembly (30), the spraying assembly (40) having a plurality of spray heads (42), the plurality of spray heads (42) being suitable for spraying dye toward the spraying area and being respectively distributed along the axial direction of the unwinding assembly; wherein The plurality of spray heads (42) are each movably provided with a pressure regulating device (43); the pressure regulating device (43) and the spray head (42) can be selectively moved toward or away from each other to adjust the spraying amount of the spray head (42).

2. The color difference correction device for fabric dyeing according to claim 1, characterized in that: The nozzle (42) is provided with an active channel (421) and a spray channel (422) which are connected to each other, the diameter of the active channel (421) is larger than the diameter of the spray channel (422), and at least a part of the pressure regulating device (43) is movably accommodated in the active channel (421) and can be selectively moved toward the spray channel (422).

3. The color difference correction device for fabric dyeing according to claim 1, characterized in that: The nozzle (42) is provided with an active channel (421) and a spray channel (422) which are connected to each other. The active channel (421) gradually decreases in diameter in a direction toward the spray channel (422). At least a portion of the pressure regulating device (43) is movably accommodated in the active channel (421) and can be selectively moved toward the spray channel (422).

4. The color difference correction device for fabric dyeing according to claim 2 or 3, characterized in that: The pressure regulating device (43) comprises: a sleeve (431), one end of the sleeve (431) being sleeved on at least a portion of the outer circumference of the nozzle (42); An intermediate column (432), the intermediate column (432) being arranged in the sleeve (431), and a flow gap being provided between the outer peripheral wall of the intermediate column (432) and the inner peripheral wall of the sleeve (431); wherein The middle column (432) is movably accommodated in the movable channel (421).

5. The color difference correction device for fabric dyeing according to claim 4, characterized in that: The spraying assembly (40) comprises: A shell (41), wherein a liquid storage cavity is provided in the shell (41), and a side of the shell (41) facing the spraying area is provided with a plurality of communication ports respectively connected to the liquid storage cavity; A nozzle (42), wherein the nozzle (42) is configured to correspond one-to-one to the plurality of communication ports; One end of the sleeve (431) is connected to the spray head (42), the other end of the sleeve (431) is connected to the housing (41), and the spray channel (422) and the liquid storage chamber are in communication through the flow gap.

6. The color difference correction device for fabric dyeing according to claim 5, characterized in that: Also includes: A driving member, wherein the driving member is arranged on the housing (41), a driving end of the driving member is connected to the spray head (42), and the driving member is suitable for driving the spray head (42) to move towards or away from the housing (41).

7. The color difference correction device for fabric dyeing according to claim 6, characterized in that: One end of the sleeve (431) is threadedly connected to the spray head (42); the driving member is configured as a rotary motor; and the output end of the rotary motor is rotatably connected to the spray head (42).

8. The color difference correction device for fabric dyeing according to claim 6, characterized in that: Also includes: A sensor is provided between the unwinding assembly (20) and the spraying assembly (40) and connected to the driving member, the sensor being suitable for detecting the color difference of the fabric and controlling the operation of the driving member according to the color difference of the fabric.

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