A liquid exchange device for dyeing

By setting inlets and outlets on both sides of the water tank, combined with horizontal water flow and opening/closing components, the problem of incomplete pigment removal in existing dyeing technologies is solved, achieving a rapid and thorough solution change effect, reducing the labor intensity of operators and the waste of resources.

CN122164625APending Publication Date: 2026-06-09KUNMING TONGYI BIOTECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUNMING TONGYI BIOTECH
Filing Date
2026-04-23
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In existing dyeing techniques, removing pigments floating on the surface of the liquid in the water tank is inefficient and requires repeated operations or is time-consuming, resulting in waste of water resources and pigments.

Method used

Design a liquid replacement device with inlet and outlet on both sides of the water tank and a flat bottom. The pigment is discharged in a direction by the impact of horizontal water flow on the liquid surface. Combined with the opening and closing components and the flow guide structure, the pigment can be removed quickly and thoroughly.

Benefits of technology

It enables the rapid and thorough removal of pigments floating on the liquid surface, improving the convenience and efficiency of liquid changing operations, reducing labor intensity, and minimizing the waste of water resources and pigments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a liquid changing device for dyeing, comprising a water tank, water inlets and outlets are respectively arranged on opposite two side walls of the water tank; the water inlets and the water outlets are located at upper portions of the water tank; bottoms of the water inlets are flush with bottoms of the water outlets; liquid surfaces in the water tank are flush with the bottoms of the water inlets and the bottoms of the water outlets; when liquid is injected into the water tank from the water inlets, the injected liquid impacts the liquid surfaces and drives pigments floating on the liquid surfaces to the water outlets to be discharged. The application can quickly and completely remove the pigments floating on the liquid surfaces in the water tank.
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Description

Technical Field

[0001] This invention relates to the field of staining, and in particular to a solution changing device for staining. Background Technology

[0002] In the field of dyeing, when dyeing fresh or artificial flowers, a water tank is typically used to hold the dyeing solution, which consists of water and pigment floating on the surface. During the process, the flowers are immersed in the water tank, allowing the pigment to adhere to the surface of the flowers, thus completing the dyeing process.

[0003] After dyeing is completed, if a color needs to be changed, any remaining pigment in the water tank must be removed. There are currently two main operating methods: One method is to manually scoop out the pigment floating on the surface of the liquid using a container. This method is difficult to clean completely and requires repeated operations, which is inefficient. The second method involves draining all the liquid from the tank, refilling it with clean water, and adding new pigment. This method is time-consuming and wastes both water and pigment.

[0004] Therefore, in order to address the above problems, it is particularly necessary to provide a liquid replacement device that can quickly and thoroughly remove pigments floating on the surface of the water tank. Summary of the Invention

[0005] The purpose of this invention is to provide a dyeing solution changing device that can quickly and thoroughly remove pigments floating on the surface of the liquid in the water tank, addressing the problems mentioned above.

[0006] The technical solution adopted in this invention is as follows: A staining solution changing device includes a water tank, with an inlet and an outlet respectively provided on opposite side walls of the water tank; both the inlet and the outlet are located at the upper part of the water tank; the bottom of the inlet is flush with the bottom of the outlet. The liquid level in the water tank is flush with the bottom of the inlet and the bottom of the outlet. When liquid is injected into the water tank from the inlet, the injected liquid impacts the liquid surface and drives the pigment floating on the liquid surface to the outlet for discharge.

[0007] Furthermore, the inlet and / or the outlet are strip-shaped openings, and the length of the strip-shaped opening extends along the length of its sidewall.

[0008] Furthermore, when both the inlet and the outlet are strip-shaped, the length of the inlet is equal to the length of the outlet.

[0009] Furthermore, the opening length of the inlet on the inner wall of its respective sidewall and the opening length of the outlet on the inner wall of its respective sidewall are both distributed throughout the entire length direction of their respective sidewalls.

[0010] Furthermore, the height of the outlet is greater than the height of the inlet.

[0011] Furthermore, an opening and closing component is provided at the water outlet, which is used to open or close the water outlet. Furthermore, the opening and closing assembly includes a baffle and a rotating shaft. The rotating shaft is rotatably mounted on the top of the water tank, and the baffle is fixedly connected to the rotating shaft. The baffle is disposed inside the water tank and adjacent to the water outlet. The baffle can flip as the rotating shaft rotates to open or close the water outlet.

[0012] Furthermore, a water inlet cavity is provided at the water inlet, which is located on the outer wall of the water tank, and the length of the water inlet cavity is adapted to the length of the water inlet; the water inlet cavity is connected to an external water source and the water inlet respectively.

[0013] Furthermore, the water inlet chamber is equipped with a liquid inlet connector, which is connected to the outlet of the water pump through a water supply pipeline. The inlet of the water pump is used to connect to an external water source, and the start and stop of the water pump are controlled by a foot pedal.

[0014] Furthermore, a water outlet guide channel is provided at the water outlet, which is located on the outer wall of the water tank and is inclined downward.

[0015] Furthermore, an auxiliary drain outlet is provided at the bottom or lower side wall of the water tank, and an openable sealing element is provided at the auxiliary drain outlet. In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: During dyeing, the tank contains a dyeing solution consisting of water and pigment floating on the surface. Flowers are immersed in the dyeing solution to complete the dyeing process. During solution changes, external water continuously flows into the tank through the inlet. The water flow creates a stable horizontal impact on the liquid surface. Because the bottoms of the inlet and outlet are flush, the liquid level remains consistently at the same plane. Pigment floating on the surface (which can accommodate oil, foam, and other residues) is directed towards the outlet by the continuous water flow and ultimately discharged. This structure, with inlets and outlets on the upper sides of the tank walls at flush bottoms, combined with the horizontal impact of the water flow, enables rapid and directional discharge of pigment floating on the surface. It eliminates the need for repeated manual scooping of pigment and the need to empty the entire tank, effectively solving the problems of low solution change efficiency, incomplete pigment removal, and water and pigment waste in existing technologies. This significantly improves the convenience and efficiency of dyeing solution changes and reduces the workload of operators. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the water tank; Figure 2 This is a cross-sectional view of the present invention; Figure 3 A structural diagram showing a water outlet equipped with an opening and closing component. Figure 4 A structural diagram showing a support structure at the bottom of the water tank; In the diagram, 1-water tank, 2-water inlet chamber, 3-water inlet, 4-water outlet, 5-water outlet guide channel, 6-liquid inlet connector, 7-operating handle, 8-baffle, 9-support component, 10-rotating shaft. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] like Figures 1-4 As shown, this invention discloses a liquid exchange device for dyeing, including a water tank 1. The water tank 1 is a box structure with an open top. An inlet 3 and an outlet 4 are respectively opened on opposite side walls of the water tank 1. The inlet 3 and the outlet 4 are both located at the top of the water tank 1. The bottom of the inlet 3 is flush with the bottom of the outlet 4. The liquid level in the water tank 1 is flush with the bottom of the inlet 3 and the bottom of the outlet 4. When liquid is injected into the water tank 1 from the inlet 3, the injected liquid impacts the liquid surface and drives the pigment floating on the liquid surface to the outlet 4 for discharge.

[0024] During the dyeing process, the water tank 1 contains a dyeing solution consisting of water and pigment floating on the surface. The flowers are immersed in the dyeing solution to complete the dyeing process. During the solution replacement process, external water continuously flows into the water tank 1 through the inlet 3. The water flow creates a stable horizontal impact on the liquid surface in the water tank 1. Since the bottoms of the inlet 3 and the outlet 4 are flush, the liquid level in the water tank 1 is always kept stable at the same plane as the bottoms of the two outlets. The pigment floating on the liquid surface (which can accommodate oil stains, foam, and other residues) is pushed directionally towards the outlet 4 by the continuously flowing water and is eventually discharged from the outlet 4. Because of the structure of "inlet 3 and outlet 4 on the upper part of both sides of the water tank 1, with the bottom of both being flush", combined with the horizontal impact of the water flow, the pigment floating on the liquid surface can be quickly and directionally discharged. There is no need for manual repeated scooping of pigment, nor is it necessary to empty all the liquid in the water tank 1. This effectively solves the problems of low liquid change efficiency, incomplete pigment removal, and waste of water and pigment in the existing technology, significantly improves the convenience and efficiency of dyeing liquid change operation, and reduces the labor intensity of operators.

[0025] Furthermore, the inlet 3 and / or the outlet 4 are strip-shaped openings, and the length direction of the strip-shaped opening extends along the length direction of its sidewall.

[0026] When only the inlet 3 is a strip-shaped inlet and the outlet 4 is not a strip-shaped inlet, the strip-shaped structure can divert the water flow when external water flows into the inlet 3, making the water flow evenly distributed along the entire length of the inlet 3, forming a planar water flow covering the entire length of the tank 1. This smoothly impacts the liquid surface in the tank 1, avoiding local water flow concentration. Because the strip-shaped inlet 3 can form a uniform planar water flow, it effectively avoids the problems of water flow concentration and violent liquid surface fluctuations caused by single-point water inlet, ensuring that the pigment floating on the liquid surface can be evenly and comprehensively pushed, improving the thoroughness of pigment removal; at the same time, the stable liquid surface can prevent the dyeing solution and water from splashing, protecting the operating environment, balancing solution change efficiency and operational standardization, and adapting to batch dyeing solution change needs.

[0027] When only the outlet 4 is a strip-shaped outlet and the inlet 3 is not a strip-shaped outlet, the strip-shaped outlet 4 greatly increases the drainage area and reduces the drainage resistance, which can accelerate the discharge speed of residual pigment after dyeing, prevent pigment from accumulating and clogging at the outlet 4, prevent residual pigment from flowing back and contaminating the dyeing solution, and at the same time ensure that residual pigment in different positions in the water tank 1 can be smoothly pushed to the outlet 4 for discharge, thereby improving the dyeing solution replacement efficiency and the thoroughness of pigment removal.

[0028] When both the inlet 3 and the outlet 4 are strip-shaped, their lengths extend along the length of their respective sidewalls. The strip-shaped inlet 3 forms a uniform planar water flow that smoothly impacts the liquid surface, while the strip-shaped outlet 4 provides a large-area drainage channel. Together, they form a structural combination and synergistic effect, allowing the pigment floating on the liquid surface, propelled by the water flow, to be evenly discharged along the entire length of the strip-shaped outlet 4. This prevents pigment accumulation and blockage, ensuring that residual pigment in different locations within the water tank 1 can be smoothly discharged, further optimizing the dyeing and liquid replacement effect and guaranteeing the dyeing quality of subsequent fresh and artificial flowers.

[0029] Furthermore, when both the inlet 3 and the outlet 4 are strip-shaped openings, the length of the inlet 3 is equal to the length of the outlet 4.

[0030] The length of the inlet 3 is equal to the length of the outlet 4, so that the area of ​​the surface water flow formed by the strip inlet 3 is completely matched with the drainage range of the strip outlet 4. The area where the water flow pushes the pigment corresponds one-to-one with the receiving area of ​​the outlet 4, which further ensures that the residual pigment after dyeing is discharged smoothly, avoids local pigment residue, avoids water waste, and reduces the cost of dyeing solution change.

[0031] Furthermore, the opening length of the inlet 3 on the inner wall of its respective side wall and the opening length of the outlet 4 on the inner wall of its respective side wall are both distributed throughout the entire length direction of their respective side walls.

[0032] The aforementioned structure allows the inlet water flow to completely cover the entire length of the tank 1, simultaneously dispersing residual pigment across the entire surface area. Simultaneously, the outlet 4 can comprehensively receive residual pigment across the entire width of the tank 1, leaving no area untouched. Because the openings of the inlet 3 and outlet 4 cover the entire length of their respective sidewalls, thorough removal of residual pigment floating on the dyeing solution surface within the tank 1 is achieved, completely resolving the pain points of incomplete pigment removal and residual pigment affecting subsequent dyeing results in existing dyeing technologies. Furthermore, it maximizes the use of water flow propulsion, avoids water waste, and further improves dyeing solution replacement efficiency, making it suitable for industrial needs involving large-area, batch dyeing and solution replacement of fresh and artificial flowers.

[0033] Furthermore, the height of the outlet 4 is greater than the height of the inlet 3.

[0034] The narrower inlet 3 allows the water flow injected through it to impact the liquid surface in a thin laminar flow state, generating a strong directional driving force that precisely pushes the pigment floating on the surface of the dyeing solution toward the outlet 4. The outlet 4 has a larger opening height, which can accommodate the driven pigment and the water flow it carries to pass through smoothly, avoiding overflow or blockage due to insufficient height of the outlet 4. This prevents pigment from splashing and contaminating the operating environment and the fresh and artificial flowers to be dyed, and improves the stability and smoothness of the drainage.

[0035] In practice, the inlet 3 can be set as a narrow slit.

[0036] Furthermore, such as Figure 3 , Figure 4 As shown, an opening and closing component is provided at the water outlet 4, which is used to open or close the water outlet 4.

[0037] During dyeing operations, closing the opening and closing component can completely seal the outlet 4, preventing the dyeing solution and pigment in the water tank 1 from leaking out of the outlet 4; when it is necessary to change the solution, opening the opening and closing component ensures that the residual pigment floating on the liquid surface can be smoothly discharged from the outlet 4.

[0038] Furthermore, the opening and closing assembly includes a baffle 8 and a rotating shaft 10. The rotating shaft 10 is rotatably mounted on the top of the water tank 1, and the baffle 8 is fixedly connected to the rotating shaft 10. The baffle 8 is disposed in the water tank 1 and adjacent to the water outlet 4. The baffle 8 can be flipped as the rotating shaft 10 rotates to open or close the water outlet 4.

[0039] When the outlet 4 is to be closed, the rotating shaft 10 drives the baffle 8 to flip downwards, so that the surface of the baffle 8 fits against the inner wall of the water tank 1, forming a surface contact seal between the surface of the baffle 8 and the inner wall of the water tank 1, effectively preventing the dyeing liquid from leaking from the gap between the baffle 8 and the inner wall. When the outlet 4 is to be opened, the rotating shaft 10 drives the baffle 8 to flip upwards, so that the surface of the baffle 8 separates from the inner wall of the water tank 1.

[0040] The rotating shaft 10 is rotatably mounted on a rotating base, which is installed on the top of the water tank 1. One end of the rotating shaft 10 is provided with an operating handle 7, which can be used to easily drive the rotating shaft 10 to rotate, thereby causing the baffle 8 to flip up and down.

[0041] Furthermore, such as Figure 4 As shown, a support member 9 is also provided at the bottom of the water tank 1. The bottom of the support member 9 can be fixed to the ground or equipped with movable rollers.

[0042] Furthermore, a water inlet cavity 2 is provided at the water inlet 3. The water inlet cavity 2 is located on the outer wall of the water tank 1, and the length of the water inlet cavity 2 is adapted to the length of the water inlet 3. The water inlet cavity 2 is connected to the external water source and the water inlet 3 respectively.

[0043] External water first flows into the inlet chamber 2, where it is buffered and diverted before flowing evenly and smoothly into the inlet 3. This prevents direct impact from external water into the inlet 3, which could cause flow fluctuations. Because the inlet chamber 2 acts as a buffer and diverter, it avoids excessive flow fluctuations and uneven impacts caused by direct inflow of external water into the inlet 3, ensuring a stable and uniform water flow and improving pigment propulsion. Simultaneously, the inlet chamber 2 protects the inlet 3 from long-term impact damage, extending the device's lifespan. It also facilitates flow control, adapting to different liquid replacement needs.

[0044] Furthermore, the water inlet chamber 2 is provided with a liquid inlet connector 6, which is connected to an external water source through a water supply pipeline; the liquid inlet connector 6 is located in the middle of the length direction of the water inlet chamber 2.

[0045] Because the inlet connector 6 is located in the middle, the liquid injected from the external water source enters from the middle of the inlet chamber 2. After entering, the liquid naturally and evenly distributes to both ends of the inlet chamber 2, avoiding the problem of concentrated water flow impacting one side and insufficient flow at the far end caused by the inlet connector 6 being located at the end. By placing the inlet connector 6 in the middle, the liquid distribution along the entire length of the inlet chamber 2 is ensured to be more uniform, thereby ensuring that the water flowing into the inlet 3 maintains a consistent flow rate and pressure along its entire length. This further improves the uniformity and stability of the surface water flow, effectively avoiding the phenomenon of excessively strong or weak local scouring, and enhancing the uniformity and thoroughness of pigment removal.

[0046] Furthermore, the inlet connector 6 is connected to the outlet of the water pump via a water supply pipeline, the inlet of the water pump is used to connect to an external water source, and the start and stop of the water pump are controlled by a foot pedal.

[0047] This structure controls the water pump's start and stop via a foot pedal, enabling foot-operated water supply. During solution replacement, the operator presses the foot pedal, activating the pump. External water, pressurized by the pump, flows into the water tank 1 through the supply pipe, inlet connector 6, inlet chamber 2, and inlet 3, initiating solution replacement. Lifting the foot pedal stops the pump. Because the foot pedal control frees the operator's hands, they can independently control the solution replacement supply with their feet while handling fresh or artificial flowers for dyeing, greatly improving operational convenience and efficiency.

[0048] Meanwhile, the foot pedal can be placed on the ground below the water tank 1, allowing operators to easily control the device without changing their position, which conforms to ergonomic principles.

[0049] In practice, the foot pedal is electrically connected to the water pump's control circuit, and the control circuit is electrically connected to the water pump's motor. The foot pedal has a built-in switch; when the foot pedal is pressed, the switch closes, the control circuit powers the water pump motor, and the water pump starts supplying water; when the foot pedal is released, the switch opens, the control circuit cuts off the power to the water pump motor, and the water pump stops supplying water. The foot pedal is placed on the ground, below the water tank 1, facilitating foot operation by the operator at the dyeing station.

[0050] Furthermore, a water outlet guide channel 5 is provided at the water outlet 4. The water outlet guide channel 5 is located on the outer wall of the water tank 1 and is inclined downward.

[0051] The residual pigment and water discharged from outlet 4 can flow quickly to the designated position along the inclined outlet guide channel 5 under the action of gravity, avoiding the accumulation of pigment and water at outlet 4, preventing pigment backflow and contamination of the dyeing solution, and guiding the direction of discharge to avoid pigment splashing and contamination of the operating environment and the fresh and artificial flowers to be dyed.

[0052] The water outlet guide channel 5 is a trough-shaped structure with an open top. The inlet end of the drainage channel is connected to the outlet 4, and the outlet end of the drainage channel is inclined downward. The drainage channel gradually narrows from the inlet end to the outlet end.

[0053] An auxiliary drain outlet is provided at the bottom or lower side wall of the water tank 1, and an openable plug is provided at the auxiliary drain outlet. During normal dyeing and liquid replacement, the plug closes the auxiliary drain outlet to ensure that the dyeing liquid in the water tank 1 does not leak. When it is necessary to drain all the liquid in the water tank 1 (such as for device cleaning, maintenance, or dyeing liquid deterioration), the plug is opened, and the liquid in the water tank 1 can be completely drained through the auxiliary drain outlet, which facilitates the cleaning, maintenance, and repair of the device, avoids residual dyeing liquid and pigment adhering to the inner wall of the water tank 1, and avoids affecting the dyeing effect of subsequent fresh flowers and artificial flowers, thereby improving the practicality and flexibility of the device.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solution changing device for staining, characterized in that, The system includes a water tank (1), on which an inlet (3) and an outlet (4) are respectively provided on opposite side walls; the inlet (3) and the outlet (4) are both located at the top of the water tank (1); the bottom of the inlet (3) is flush with the bottom of the outlet (4). The liquid level in the water tank (1) is flush with the bottom of the inlet (3) and the bottom of the outlet (4); When liquid is injected into the water tank (1) from the inlet (3), the injected liquid impacts the liquid surface and drives the pigment floating on the liquid surface to the outlet (4) for discharge.

2. The staining solution changing device according to claim 1, characterized in that, The inlet (3) and / or the outlet (4) are strip-shaped openings, and the length direction of the strip-shaped openings extends along the length direction of the side wall where they are located.

3. The staining solution changing device according to claim 2, characterized in that, When both the inlet (3) and the outlet (4) are strip-shaped, the length of the inlet (3) is equal to the length of the outlet (4).

4. The staining solution changing device according to claim 3, characterized in that, The opening length of the inlet (3) on the inner wall of its respective side wall and the opening length of the outlet (4) on the inner wall of its respective side wall are both distributed along the entire length of their respective side walls.

5. The staining solution changing device according to claim 1, characterized in that, The height of the outlet (4) is greater than the height of the inlet (3).

6. The staining solution changing device according to any one of claims 1 to 5, characterized in that, An opening and closing component is provided at the outlet (4), which is used to open or close the outlet (4).

7. The staining solution changing device according to any one of claims 1 to 5, characterized in that, A water inlet cavity (2) is provided at the water inlet (3). The water inlet cavity (2) is located on the outer wall of the water tank (1). The length of the water inlet cavity (2) is adapted to the length of the water inlet (3). The water inlet cavity (2) is connected to the external water source and the water inlet (3) respectively.

8. The staining solution changing device according to claim 7, characterized in that, The water inlet chamber (2) is provided with a liquid inlet connector (6), which is connected to the outlet of the water pump through a water supply pipeline. The inlet of the water pump is used to connect to an external water source, and the start and stop of the water pump are controlled by a foot pedal.

9. The staining solution changing device according to any one of claims 1 to 5, characterized in that, A water outlet guide channel (5) is provided at the water outlet (4). The water outlet guide channel (5) is located on the outer wall of the water tank (1) and is inclined downward.

10. The staining solution changing device according to any one of claims 1 to 5, characterized in that, An auxiliary drain outlet is provided at the bottom or lower side wall of the water tank (1), and an openable sealing component is provided at the auxiliary drain outlet.