Water-saving device for fabric dyeing

By incorporating an extrusion assembly, a reflux tank, and a reflux assembly into the dyeing device, the dye liquor is recycled, solving the problems of dye liquor dripping and slipperiness, and improving safety and dye liquor utilization.

CN223974352UActive Publication Date: 2026-03-06ZHEJIANG OASIS PRINTING & DYEING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-26
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing dyeing equipment often results in dye liquor dripping after the fabric is dyed, causing waste and making the floor slippery, posing a safety hazard.

Method used

A water-saving device for fabric dyeing was designed, comprising a dyeing box, an extrusion assembly, a return tank, a guide plate, a filter screen, and a return assembly. Excess dye liquor is squeezed out by the extrusion assembly, guided into the return tank by the guide plate, filtered out impurities by the filter screen, and the return assembly recycles the dye liquor for reuse.

Benefits of technology

It reduces dye waste, increases the recycling rate of dye, avoids slippery ground caused by dye dripping, and improves safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223974352U_ABST
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Abstract

The utility model discloses a water-saving device for fabric dyeing, which relates to the field of dyeing devices, and adopts the technical scheme that the water-saving device comprises a dyeing box, a cloth inlet and a cloth outlet, the cloth inlet and the cloth outlet are arranged on two sides of the dyeing box, the inner side wall of the dyeing box is fixedly connected with a horizontally arranged partition plate, and a dyeing area is formed between the top surface of the partition plate and the inner side wall of the dyeing box. Fabric is guided into the dyeing area through the cloth inlet to be dyed and guided out through the cloth outlet, dye liquor adsorbed on the fabric is squeezed through the squeezing assembly when the fabric is guided out, and the dye liquor will flow down to the flow guide plate and obliquely flow downwards to the backflow groove along the flow guide plate. Dye liquor flows into the backflow groove and then flows onto the filter screen to filter impurities in the dye liquor, then the dye liquor flows into the circulation area to be collected, the dye liquor filtered and collected in the circulation area is guided back into the dyeing area through the backflow assembly to be recycled, and waste of the dye liquor is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of dyeing equipment, and more specifically, it relates to a water-saving device for dyeing fabrics. Background Technology

[0002] When using existing dyeing equipment, the fabric needs to be placed in the dyeing tank and dyed by the dye solution in the tank. After the dyeing is completed, the fabric is taken out of the dyeing tank directly. The dye solution absorbed by the fabric will be carried out. During the movement of the fabric, the dye solution will fall due to its own gravity, which is wasteful and will also make the ground slippery, which is easy to cause danger.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a water-saving device for fabric dyeing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A water-saving device for fabric dyeing includes a dyeing box and a fabric inlet and a fabric outlet on both sides of the dyeing box. A horizontally arranged partition is fixedly connected to the inner wall of the dyeing box. A dyeing zone is formed between the top surface of the partition and the inner wall of the dyeing box. The dyeing zone is connected to both the fabric inlet and the fabric outlet. A pressing component corresponding to the fabric outlet is installed on the outer wall of the dyeing box near the fabric outlet. A return trough is formed on the outer wall of the dyeing box near the fabric outlet. The reflux trough is located below the partition plate, and an inclined guide plate is fixedly connected to the outer wall of the dyeing box. The side of the guide plate with the lower height corresponds to the bottom wall of the reflux trough. A vertical plate is fixedly connected to the bottom surface of the dyeing box. A horizontally arranged filter screen is installed inside the dyeing box. The filter screen is located directly below the partition plate and below the reflux trough. A circulation zone is formed between the filter screen, the vertical plate, and the inner wall of the dyeing box. A reflux assembly is provided on the dyeing box for returning the dye liquor collected in the circulation zone to the dyeing zone.

[0006] Preferably, the extrusion assembly includes an upper pressure roller, a lower pressure roller, and two mounting plates. The upper pressure roller is located directly above the lower pressure roller. Both mounting plates are fixedly connected to the outer wall of the dyeing box, and each mounting plate has a groove. A slider is slidably connected in the groove along the vertical direction. A vertical rod is fixedly connected to the inner wall of the groove, and the vertical rod passes through the slider. The top wall of the groove and the top of the slider are fixedly connected by a spring, which is sleeved on the vertical rod. The lower pressure roller is rotatably mounted between the two mounting plates, and the upper pressure roller is rotatably mounted between the two sliders.

[0007] Preferably, the reflux assembly includes a water pump, a suction pipe, and an outlet pipe. The suction pipe and the outlet pipe are both installed on the water pump and are interconnected. The water pump is fixedly connected to the outer wall of the dyeing box. One end of the suction pipe passes through the outer wall of the dyeing box and is connected to the circulation area. One end of the outlet pipe passes through the outer wall of the dyeing box and is connected to the dyeing area.

[0008] Preferably, the outer wall of the dyeing box near the fabric outlet has a through groove for the filter screen to pass through. The through groove is located directly below the return groove, and a sealing gasket that abuts against the filter screen is fixedly connected to the inner wall of the through groove. The length of the return groove is less than the width of the filter screen, and a support strip for supporting the filter screen is fixedly connected to the inner wall of the dyeing box.

[0009] Preferably, the bottom surface of the partition is provided with a cleaning component for cleaning the filter screen, and a collection area is formed between the side of the upright plate away from the filter screen and the inner wall of the dyeing box, and a collection box with an open top is installed in the collection area.

[0010] Preferably, the cleaning assembly includes a lead screw, a threaded block, and a scraper. The bottom surface of the partition plate has an installation groove. The lead screw is rotatably installed inside the installation groove by a servo motor. The servo motor is installed on the outer wall of the dyeing box. The output end of the servo motor passes through the side wall of the dyeing box and is fixedly connected to one end of the lead screw. The scraper abuts against the top surface of the filter screen and is fixedly connected to the bottom of the threaded block. The top of the threaded block is helically connected to the lead screw. The top surface of the filter screen and the top surface of the vertical plate are set on the same plane.

[0011] Preferably, the outer wall of the dyeing box near the fabric inlet has a slot that communicates with the collection area and allows the collection box to pass through.

[0012] In summary, this utility model has the following beneficial effects: This solution involves setting a partition inside the dyeing box, with the top surface of the partition and the inner wall of the dyeing box forming a dyeing zone for fabric dyeing. A pressing component for pressing the fabric is installed on the outer wall of the dyeing box near the fabric outlet. A return trough and a guide plate are respectively installed on the dyeing box, and a filter screen is installed inside the dyeing box. A circulation zone is formed between the filter screen, the upright plate, and the inner wall of the dyeing box. The fabric is introduced into the dyeing zone containing dye solution through the fabric inlet for dyeing. After dyeing, the fabric is exited from the dyeing box through the fabric outlet. When the fabric exits the outlet, the pressing component removes the dye adsorbed onto the fabric. Excess dye liquor is squeezed out and flows onto a guide plate, then slopes downwards into a return tank. From there, it flows onto a filter screen to remove impurities. The filtered dye liquor then flows into a circulation area for collection. The return assembly guides the filtered and collected dye liquor back to the dyeing area for reuse. This process reduces dye liquor waste, increases its recycling, and minimizes dripping when the fabric is removed from the dyeing box, preventing slippery conditions caused by spilled dye. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention when the recirculation component is removed;

[0015] Figure 3 A cross-sectional view of this utility model Figure 1 ;

[0016] Figure 4 A cross-sectional view of this utility model Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the structure of the partition and cleaning assembly of this utility model.

[0018] In the diagram: 1. Dyeing box; 2. Fabric inlet; 3. Fabric outlet; 4. Partition; 5. Dyeing area; 6. Extrusion assembly; 601. Upper pressure roller; 602. Lower pressure roller; 603. Mounting plate; 7. Return trough; 8. Guide plate; 9. Vertical plate; 10. Filter screen; 11. Circulation area; 12. Return assembly; 121. Water pump; 122. Suction pipe; 123. Discharge pipe; 13. Slide chute; 14. Slider; 15. Vertical rod; 16. Spring; 17. Through groove; 18. Sealing gasket; 19. Support bar; 20. Cleaning assembly; 201. Lead screw; 202. Threaded block; 203. Scraper; 21. Collection area; 22. Collection box; 23. Mounting groove; 24. Slotting; 25. Servo motor. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Example:

[0021] A water-saving device for fabric dyeing, such as Figures 1 to 5 As shown, the dyeing box 1 includes an inlet 2 and an outlet 3 on both sides of the dyeing box 1. The top of the dyeing box 1 is open for pouring in dye liquor. A horizontally arranged partition 4 is welded to the inner wall of the dyeing box 1. A dyeing zone 5 is formed between the top surface of the partition 4 and the inner wall of the dyeing box 1. The dyeing zone 5 is connected to the inlet 2 and the outlet 3. Multiple rotating rollers are installed on the inner wall of the dyeing box 1 between the inlet 2 and the outlet 3 by a motor. The number and position of the motor and the rotating rollers are one-to-one. The motor is welded to the outer wall of the dyeing box 1. The output end of the motor passes through the side wall of the dyeing box 1 and is welded to one end of the rotating roller. The multiple rotating rollers are all located in the dyeing zone 5 and are distributed in a wavy shape. An extrusion assembly 6 is installed on the outer wall of the dyeing box 1 near the outlet 3, corresponding to the outlet 3. A reflux trough 7 is provided on the side wall. The reflux trough 7 is located below the partition 4 and is not connected to the dyeing zone 5. An inclined guide plate 8 is welded to the outer wall of the dyeing box 1. The lower side of the guide plate 8 is welded to the outer wall of the dyeing box 1 and is set corresponding to the bottom wall of the reflux trough 7. The height of the guide plate 8 is inclined upward in the direction away from the dyeing box 1. A vertical plate 9 is welded to the bottom surface of the dyeing box 1. A horizontally arranged filter screen 10 is installed inside the dyeing box 1. The filter screen 10 is located directly below the partition 4 and does not contact the bottom surface of the partition 4. The filter screen 10 is located below the reflux trough 7. A circulation zone 11 is formed between the filter screen 10, the vertical plate 9 and the inner wall of the dyeing box 1. A reflux assembly 12 is installed on the dyeing box 1 to return the dye liquor collected in the circulation zone 11 to the dyeing zone 5.

[0022] The extrusion assembly 6 includes an upper pressure roller 601, a lower pressure roller 602, and two mounting plates 603. The upper pressure roller 601 is located directly above the lower pressure roller 602. Both mounting plates 603 are welded to the outer side wall of the dyeing box 1 near the fabric outlet 3. Both mounting plates 603 are provided with a sliding groove 13. A slider 14 is slidably connected in the vertical direction inside the sliding groove 13. A vertical rod 15 is welded to the inner wall of the sliding groove 13. The vertical rod 15 is vertically arranged and passes through the slider 14. The top wall of the inner side of the sliding groove 13 is connected to the top of the slider 14 by a spring 16. The two ends of the spring 16 are welded to the top wall of the inner side of the sliding groove 13 and the top of the slider 14, respectively. The spring 16 is sleeved on the vertical rod 15. The lower pressure roller 602 is rotatably mounted between the two mounting plates 603 via a rotating shaft one. The end of the rotating shaft one is rotatably mounted on the mounting plate 603. The upper pressure roller 601 is rotatably mounted between the two sliders 14 via a rotating shaft two. The end of the rotating shaft two is rotatably mounted on the slider 14.

[0023] The reflux assembly 12 includes a water pump 121, a suction pipe 122, and a discharge pipe 123. The suction pipe 122 and the discharge pipe 123 are both installed on the water pump 121 and are connected to each other. The water pump 121 is welded to the outer wall of the dyeing box 1. One end of the suction pipe 122 passes through the outer wall of the dyeing box 1 and is connected to the circulation zone 11. One end of the discharge pipe 123 passes through the outer wall of the dyeing box 1 and is connected to the dyeing zone 5.

[0024] A through groove 17 for the filter screen 10 to pass through is provided on the outer wall of the dyeing box 1 near the fabric outlet 3. The length of the through groove 17 is equal to the width of the filter screen 10. The through groove 17 is located directly below the return groove 7, and a sealing gasket 18 made of rubber is bonded to the inner wall of the through groove 17 to press against the filter screen 10. The length of the return groove 7 is less than the width of the filter screen 10. Support bars 19 for supporting the filter screen 10 are welded to the inner wall of the dyeing box 1. There are two support bars 19. A cleaning component 20 for cleaning the filter screen 10 is installed on the bottom surface of the partition plate 4. A collection area 21 is formed between the side of the upright plate 9 away from the filter screen 10 and the inner wall of the dyeing box 1. A collection box 22 with an open top is installed in the collection area 21. The cleaning component 20 includes a screw 201. The dyeing box 1 has a threaded block 202 and a scraper 203. The bottom surface of the partition plate 4 has an installation groove 23. The lead screw 201 is installed in the installation groove 23 by rotating the servo motor 25. The servo motor 25 is welded to the outer wall of the dyeing box 1. The output end of the servo motor 25 passes through the side wall of the dyeing box 1 and is welded to one end of the lead screw 201. The scraper 203 abuts against the top surface of the filter screen 10 and is adhered to the bottom of the threaded block 202. The top of the threaded block 202 is connected to the lead screw 201 by a spiral drive. The threaded block 202 has a threaded groove that matches the lead screw 201. The top surface of the filter screen 10 is set in the same plane as the top surface of the upright plate 9. The outer wall of the dyeing box 1 near the inlet 2 has a slot 24 that communicates with the collection area 21 and is used for the collection box 22 to pass through.

[0025] The operator pours dye solution into the dyeing zone 5 through the top of the dyeing tank 1 and starts the motor to drive the rotating rollers. Then, the fabric is introduced into the dyeing zone 5 through the inlet 2. The fabric comes into contact with the dye solution for dyeing, and also contacts multiple rotating rollers. These rollers cause the fabric to be transported in a wave-like pattern within the dyeing zone 5 until the fabric is dyed and exits through the outlet 3. As the fabric passes through the outlet 3, it contacts the bottom of the upper pressure roller 601 and the top of the lower pressure roller 602, moving between them. The contact between the fabric and the upper and lower pressure rollers causes them to rotate, thus rotating the upper pressure roller 601 via the rotating shaft 2. The slider 14 rotates between the two mounting plates 603 via a rotating shaft. When the upper and lower pressure rollers 601 and 602 rotate, they can roll and squeeze the fabric on both sides respectively to squeeze out excess dye liquid adsorbed in the fabric, which can shorten the drying time of the fabric. When the fabric touches the bottom of the upper pressure roller 601, it will drive the upper pressure roller 601 to move vertically upward. When the upper pressure roller 601 moves upward, it will drive the slider 14 to move, so that the slider 14 moves vertically upward in the groove 13. When the slider 14 moves upward, the spring 16 is gradually squeezed and deformed to adjust the distance between the upper pressure roller 601 and the lower pressure roller 602, so that fabrics of different thicknesses can be squeezed to squeeze out excess dye liquid.

[0026] After the dye liquor is squeezed out by the rolling and pressing of the upper pressure roller 601 and the lower pressure roller 602 on both sides of the fabric, the squeezed dye liquor will flow downward onto the guide plate 8 and then flow downward along the guide plate 8 into the return tank 7. After flowing into the return tank 7, the dye liquor will flow downward onto the filter screen 10. The filter screen 10 can filter impurities in the dye liquor, reducing the contamination of the dye liquor by impurities on the original fabric. The filtered dye liquor will flow into the circulation zone 11 for collection. Then, by starting the water pump 121, the water pump 121 will be activated. The operation of 21 uses existing technology. The filtered dye liquor is pumped by starting the water pump 121 and drawn from the circulation area 11 through the suction pipe 122 and then flows into the outlet pipe 123. After the dye liquor flows out of the outlet pipe 123, it will flow back to the dyeing area 5 for reuse. This is to reduce the waste of dye liquor, increase the recycling of dye liquor, and reduce the amount of dye liquor dripping on the ground when the fabric is taken out of the dye box 1 after dyeing. This also reduces the slippery situation caused by the dye liquor dripping on the ground. The filter screen 10 can increase the sealing between the two by pressing it against the sealing gasket 18.

[0027] After impurities in the dye liquor are filtered through the filter screen 10, they adhere to the filter screen 10. Then, the servo motor 25 is activated, driving the lead screw 201 to rotate clockwise. The lead screw 201 rotates within the mounting groove 23. As the lead screw 201 rotates clockwise, it engages with the threaded groove on the threaded block 202, causing the threaded block 202 and the scraper 203 to move towards the collection box 22. The support bar 19 supports the filter screen 10. At this time, the scraper 203 contacts the filter screen 10 and pushes the impurities towards the collection box 22, causing the scraper 203 to contact the top surface of the filter screen 10 and the top surface of the vertical plate 9 in sequence. Impurities are pushed into the collection box 22 for collection, which can clean the impurities on the filter screen 10 and reduce the possibility of impurities clogging the filter screen 10. When the impurities in the collection box 22 need to be cleaned, the collection box 22 is moved to gradually detach it from the trough 24 until the collection box 22 is removed from the collection area 21 and taken out of the dyeing box 1 for centralized treatment of the impurities in the collection box 22. When the filter screen 10 needs to be replaced, the filter screen 10 is moved to gradually pass through the through groove 17. At this time, the filter screen 10 does not contact the support bar 19, scraper bar 203 and upright plate 9 respectively, until the filter screen 10 is removed from the inside of the dyeing box 1 through the through groove 17 for replacement.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A water-saving device for fabric dyeing, comprising a dyeing box (1) and a cloth inlet (2) and a cloth outlet (3) opened on both sides of the dyeing box (1), characterized in that: The inner side wall of the dyeing box (1) is fixedly connected with a horizontal partition plate (4), a dyeing area (5) is formed between the top surface of the partition plate (4) and the inner side wall of the dyeing box (1), the dyeing area (5) is in communication with the cloth inlet (2) and the cloth outlet (3) respectively, a pressing assembly (6) is installed on the outer side wall of the dyeing box (1) near the cloth outlet (3) and is arranged correspondingly to the cloth outlet (3), a backflow groove (7) is formed on the outer side wall of the dyeing box (1) near the cloth outlet (3), the backflow groove (7) is located below the partition plate (4), an inclined flow guide plate (8) is fixedly connected to the outer side wall of the dyeing box (1), the lower side of the flow guide plate (8) is arranged correspondingly to the inner bottom wall of the backflow groove (7), a vertical plate (9) is fixedly connected to the inner bottom surface of the dyeing box (1), a horizontal filter screen (10) is arranged in the dyeing box (1), the filter screen (10) is located directly below the partition plate (4) and below the backflow groove (7), a circulation area (11) is formed between the filter screen (10), the vertical plate (9) and the inner wall of the dyeing box (1), and a backflow assembly (12) is arranged on the dyeing box (1) and is used for backflowing the dyeing liquid collected in the circulation area (11) to the dyeing area (5).

2. A water saving device for fabric dyeing as claimed in claim 1 wherein: The pressing assembly (6) comprises an upper pressing roller (601), a lower pressing roller (602) and two mounting plates (603), the upper pressing roller (601) is located directly above the lower pressing roller (602), the two mounting plates (603) are fixedly connected to the outer side wall of the dyeing box (1), sliding grooves (13) are formed in the two mounting plates (603), sliding blocks (14) are slidably connected in the vertical direction in the sliding grooves (13), vertical rods (15) are fixedly connected to the inner walls of the sliding grooves (13), the vertical rods (15) penetrate through the sliding blocks (14), the inner top walls of the sliding grooves (13) and the top portions of the sliding blocks (14) are fixedly connected through springs (16), the springs (16) are sleeved on the vertical rods (15), the lower pressing roller (602) is rotatably installed between the two mounting plates (603), and the upper pressing roller (601) is rotatably installed between the two sliding blocks (14).

3. A water saving device for fabric dyeing as claimed in claim 1 wherein: The backflow assembly (12) comprises a water suction pump (121), a liquid suction pipe (122) and a liquid outlet pipe (123), the liquid suction pipe (122) and the liquid outlet pipe (123) are installed on the water suction pump (121) and are in communication with each other, the water suction pump (121) is fixedly connected to the outer side wall of the dyeing box (1), one end of the liquid suction pipe (122) penetrates through the outer side wall of the dyeing box (1) and is in communication with the circulation area (11), and one end of the liquid outlet pipe (123) penetrates through the outer side wall of the dyeing box (1) and is in communication with the dyeing area (5).

4. A water saving device for fabric dyeing as claimed in claim 1 wherein: The dyeing box (1) is provided with a through groove (17) for the filter screen (10) to pass through near the outer side wall of the cloth outlet (3), the through groove (17) is located directly below the backflow groove (7), the inner wall of the through groove (17) is fixedly connected with a sealing gasket (18) abutting against the filter screen (10), the length of the backflow groove (7) is less than the width of the filter screen (10), and the inner side wall of the dyeing box (1) is fixedly connected with a supporting strip (19) for supporting the filter screen (10).

5. A water saving device for fabric dyeing as claimed in claim 4 wherein: The bottom surface of the partition plate (4) is provided with a cleaning assembly (20) for cleaning the filter screen (10), the side of the vertical plate (9) away from the filter screen (10) and the inner wall of the dyeing box (1) form a collection area (21), and the collection area (21) is provided with a collection box (22) with an open top.

6. A water saving device for fabric dyeing as claimed in claim 5 wherein: The cleaning assembly (20) comprises a lead screw (201), a threaded block (202) and a scraping strip (203), the bottom surface of the partition plate (4) is provided with a mounting groove (23), the lead screw (201) is rotatably mounted in the mounting groove (23) through a servo motor (25), the servo motor (25) is mounted on the outer side wall of the dyeing box (1), the output end of the servo motor (25) penetrates the side wall of the dyeing box (1) and is fixedly connected with one end of the lead screw (201), the scraping strip (203) abuts against the top surface of the filter screen (10), the scraping strip (203) is fixedly connected with the bottom of the threaded block (202), the top of the threaded block (202) is screwingly and drivably connected with the lead screw (201), and the top surface of the filter screen (10) is arranged in the same plane with the top surface of the vertical plate (9).

7. A water saving device for fabric dyeing as claimed in claim 5 wherein: The outer side wall of the dyeing box (1) near the cloth inlet (2) is provided with a slot (24) in communication with the collection area (21) and for the collection box (22) to pass through.