Auxiliary device for modifying and dyeing denim

Abstract

This utility model relates to an auxiliary device for modifying and dyeing denim fabrics, applied in the field of fabric dyeing technology. It involves activating a servo motor to drive a connecting shaft, which in turn drives two rollers via a belt pulley and belt. When the denim fabric is conveyed between two dyeing mechanisms, the servo motor is deactivated to stop fabric transport. At this point, a first electric slide rail drives a slider to move the dyeing mechanism and adjust the distance between it and the fabric. Two scrapers located above and below the fabric are adjusted to abut against each other by an electric push rod, clamping the fabric in the middle. A suction pump is then activated to deliver the modifier and dye through a conveying pipe to the corresponding support plate, and then to multiple main pipes, from which they are evenly sprayed onto the fabric. Simultaneously, a second electric slide rail is activated to drive the upper and lower scrapers to move horizontally and coat the fabric, ensuring uniform adhesion of the modifier and dye.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for fabric modification and dyeing, and in particular to an auxiliary device for denim fabric modification and dyeing applied in the field of fabric dyeing technology. Background Technology

[0002] A denim fabric modification and dyeing auxiliary device is a specialized piece of equipment used to treat and improve denim fabrics. Its main function is to alter the original properties of the denim fabric through physical or chemical methods, making it more suitable for dyeing.

[0003] Chinese patent CN222809716U discloses an auxiliary device for modifying and dyeing denim fabric. This utility model lowers the pressure roller by rotating the knob clockwise. When the pressure roller reaches the appropriate position, it will press down on the denim fabric, thereby stretching and increasing the tension of the fabric to a certain extent. This prevents the denim fabric from wrinkling, twisting or other adverse effects, thus ensuring that the denim fabric can achieve the best results during modification and dyeing.

[0004] Chinese patent CN222613745U discloses a modified fabric processing device in which multiple ring pieces 11 can be disassembled. When the fabric needs to be flattened, multiple ring pieces 11 are not installed. Multiple ring pieces 11 are only installed when pleats need to be processed on the fabric. The multiple ring pieces 11 are pressed on both sides of the fabric to process pleats on the fabric.

[0005] In the existing denim fabric modification and dyeing process, the modifier and dye do not adhere evenly to the fabric, resulting in inconsistent fabric color depth. Utility Model Content

[0006] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that in the existing denim fabric modification and dyeing process, the modifier and dye are not evenly attached to the fabric, resulting in uneven fabric color.

[0007] To address the aforementioned problems, this utility model provides an auxiliary device for modifying and dyeing denim fabric. It includes a dyeing tank with an outlet, a water tank containing a modifier and dye located on the side of the dyeing tank, rollers symmetrically connected to the inner wall of the dyeing tank via connecting shafts, denim fabric wound around the rollers, two sets of symmetrical grooves symmetrically formed between the two rollers on the inner wall of the dyeing tank, and a pair of symmetrical first electric slide rails fixedly connected within the grooves. Support plates are slidably connected to the first electric slide rails via sliders. A dyeing mechanism is installed between the two support plates on the same upper and lower sides. The dyeing mechanism includes a main pipe fixed to one of the support plates, multiple interconnected branch pipes equidistantly fixed to the side wall of the main pipe, and the end of each branch pipe away from the main pipe fixedly connected to the other support plate. Multiple nozzles are equidistantly installed on the bottom wall of each branch pipe. A second electric slide rail is fixedly connected to the two symmetrical upper and lower support plates at their closest points, and an electric push rod is slidably connected to the second electric slide rail. A scraper is fixedly connected to the end of the electric push rod away from the support plate.

[0008] In the aforementioned auxiliary device, a fully automated dyeing mechanism can be set up to spray the denim fabric on both sides. During the spraying process, a scraper is used to squeeze the fabric, allowing the modifier and dye to penetrate into the fabric and ensuring that the modifier and dye are evenly attached to the fabric.

[0009] As a further supplement to this application, the surfaces of the two connecting shafts located outside the upper dyeing tank are each fitted with belt pulleys, and the two belt pulleys are connected to each other by a belt. A controller is fixedly connected to the side end of the upper dyeing tank, and a servo motor is fixedly connected to the controller. The output end of the servo motor is connected to one of the connecting shafts.

[0010] As a further supplement to this application, a suction pump is fixedly connected to the top of the water tank, and the output end and input end of the suction pump are respectively connected to connecting pipes extending into the water tank and the dyeing pool.

[0011] As a further supplement to this application, the connecting pipe located in the dyeing tank is threaded with a tap, and the tap is connected to two corresponding support plates through a conveying pipe.

[0012] As a further supplement to this application, the inner wall of the dyeing tank is symmetrically and fixedly connected with support frames, and the two support frames are respectively located on the inner side of the roller.

[0013] As a further supplement to this application, multiple telescopic rods are fixedly connected at equal intervals at the bottom of the support frame. A magnetic pressure plate is fixedly connected to the movable end of the telescopic rod. A compression spring is sleeved on the surface of the movable end of the telescopic rod, and both ends of the compression spring are fixedly connected to the cross section of the fixed end of the telescopic rod and the pressure plate, respectively. An electromagnetic block is fixedly connected to the fixed end of the telescopic rod near the end of the compression spring, and the electromagnetic block is magnetically attracted to the pressure plate.

[0014] As a further supplement to this application, the first electric slide rail, the second electric slide rail, the servo motor, the suction pump, the electromagnetic block, and the electric push rod are all electrically connected to the controller.

[0015] In summary, the controller activates the servo motor to drive the connecting shaft, which in turn drives two rollers via belt pulleys and belts. When the denim fabric is conveyed between the two dyeing mechanisms, the servo motor is turned off to stop the fabric transport. At this time, the first electric slide rail drives the slider to move the dyeing mechanism and adjust the distance between it and the fabric. Meanwhile, the two scrapers located above and below the fabric are adjusted to abut against each other by the electric push rods, clamping the fabric in the middle. The suction pump is then activated to deliver the modifier and dye through the conveying pipe to the corresponding support plate, and then to multiple main pipes, from which they are evenly sprayed onto the fabric. Simultaneously, the second electric slide rail is activated to drive the upper and lower scrapers to move horizontally to coat the fabric, squeezing the modifier and dye on the fabric to allow them to penetrate into the fabric, ensuring that the modifier and dye adhere evenly to the fabric. After the set spraying time, the controller automatically restarts the servo motor drive to transport the dyed fabric. Attached Figure Description

[0016] Figure 1 This is an isometric view of the dyeing auxiliary device according to the first embodiment of this application;

[0017] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the internal structure of the dyeing tank according to the first embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the dyeing mechanism structure according to the first embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the pressure plate mounting structure according to the second embodiment of this application;

[0021] Figure 6 This is the second embodiment of the present application. Figure 5 Partial schematic diagram.

[0022] Explanation of the labels in the diagram:

[0023] 1. Dyeing tank; 2. Controller; 3. Servo motor; 4. Belt pulley; 5. Belt; 6. Water outlet; 7. Slide chute; 8. Support plate; 9. Main pipe; 10. Branch pipe; 11. Connector; 12. Water tank; 13. Conveying pipe; 14. Support frame; 15. Telescopic rod; 16. First electric slide rail; 17. Slider; 18. Compression spring; 19. Nozzle; 20. Roller shaft; 21. Electric actuator; 22. Scraper; 23. Pressure plate. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figures 1-4 This invention discloses an auxiliary device for modifying and dyeing denim fabric, comprising a dyeing tank 1 with an outlet 6, a water tank 12 containing a modifier and dye disposed on the side of the dyeing tank 1, rollers 20 symmetrically connected to the inner wall of the dyeing tank 1 via connecting shafts, denim fabric wrapped around the surface of the rollers 20, and two sets of sliding grooves 7 symmetrically formed on the inner wall of the dyeing tank 1 between the two rollers 20, a pair of symmetrical first electric slide rails 16 fixedly connected in the slide rails 7, and a support plate 8 slidably connected to the first electric slide rails 16 via a slider 17, the two on the same side of the upper and lower sides... A dyeing mechanism is installed between the support plates 8. The dyeing mechanism includes a main pipe 9 fixed on one of the support plates 8. Multiple branch pipes 10 are fixedly connected at equal intervals on the side wall of the main pipe 9. The end of the branch pipe 10 away from the main pipe 9 is fixedly connected to the other support plate 8. Multiple nozzles 19 are installed at equal intervals on the bottom wall of the branch pipe 10. Two support plates 8 that are symmetrically arranged at the top and bottom are fixedly connected to a second electric slide rail at one end close to each other. An electric push rod 21 is slidably connected on the second electric slide rail. A scraper 22 is fixedly connected to the end of the electric push rod 21 away from the support plate 8.

[0027] Two connecting shafts located outside the upper dyeing tank 1 are fitted with belt pulleys 4, and the two belt pulleys 4 are connected by belts 5. A controller 2 is fixedly connected to the side of the upper dyeing tank 1, and a servo motor 3 is fixedly connected to the controller 2. The output end of the servo motor 3 is connected to one of the connecting shafts. A suction pump is fixedly connected to the top of the water tank 12, and the output end and input end of the suction pump are respectively connected to connecting pipes extending into the water tank 12 and the upper dyeing tank 1. A tap 11 is threaded onto the connecting pipe located in the upper dyeing tank 1, and the tap 11 is connected to two corresponding support plates 8 through conveying pipes 13. The first electric slide rail 16, the second electric slide rail, the servo motor 3, the suction pump, the electromagnetic block, and the electric push rod are all electrically connected to the controller 2.

[0028] Working principle: The controller 2 starts the servo motor 3 to drive the connecting shaft, and drives the two roller shafts 20 to rotate through the belt pulley 4 and belt 5. When the denim fabric on the surface is transported between the two dyeing mechanisms, the servo motor 3 is turned off to stop the fabric transport. At this time, the first electric slide rail 16 is turned on to drive the slider 17 to move the dyeing mechanism to adjust the distance between it and the fabric. At this time, the two scrapers 22 located at the top and bottom of the fabric are adjusted to abut against each other by the electric push rod 21 to clamp the fabric in the middle. At this time, the suction pump is turned on to transport the modifier and dye through the conveying pipe 13 to the corresponding support plate 8, and then to multiple main pipes 9. The dye is evenly sprayed on the fabric from the nozzle 19. At the same time, the second electric slide rail is turned on to drive the upper and lower scrapers 22 to move horizontally to coat the fabric, and squeeze the modifier and dye on the fabric to make them penetrate into the fabric. This ensures that the modifier and dye are evenly attached to the fabric. After the spraying time is set, the controller 2 automatically restarts the servo motor 3 to drive the conveying system to transport the dyed fabric.

[0029] This invention, through the setting of a fully automatic dyeing mechanism, can spray both sides of denim fabric. The spray nozzle 19 sprays dye intermittently during the process; the scraper 22 moves to squeeze the fabric, so that the modifier and dye penetrate into the fabric, ensuring that the modifier and dye are evenly attached to the fabric.

[0030] Second implementation method:

[0031] Figures 5-6 The inner wall of the dyeing pool 1 is symmetrically and fixedly connected with support frames 14, and the two support frames 14 are respectively located inside the roller 20. Multiple telescopic rods 15 are fixedly connected at equal intervals at the bottom of the support frames 14. A magnetic pressure plate 23 is fixedly connected to the movable end of the telescopic rod 15. A compression spring 18 is sleeved on the surface of the movable end of the telescopic rod 15, and the two ends of the compression spring 18 are fixedly connected to the fixed end section of the telescopic rod 15 and the pressure plate 23, respectively. An electromagnetic block is fixedly connected to the fixed end of the telescopic rod 15 near the compression spring 18, and the electromagnetic block is magnetically attracted to the pressure plate 23.

[0032] Working principle: When the denim fabric is being conveyed, the controller activates the electromagnetic block, which magnetically attracts the pressure plate 23, moving the pressure plate 23 upwards to a non-contact state with the denim fabric. When the denim fabric moves to the spraying area, the electromagnetic block is deactivated, allowing the pressure plate 23 to be pushed downwards by the compression spring 18, contacting and pressing the denim fabric. This ensures that the fabric in the spraying area between the two rollers 20 remains horizontal due to the pressure of the two pressure plates 23 (the pressure of the pressure plate 23 is controlled at 50±5N to maintain fabric flatness ±1mm). This facilitates the movement of the scraper 22 to squeeze and coat the fabric. After the spraying and dyeing are completed, the electromagnetic block is activated again to attract the pressure plate 23, separating it from the fabric. This allows for continued conveying of the coated fabric and prevents the pressure plate 23 from rubbing against the fabric during movement, which would affect the spraying effect.

[0033] In this invention, pressure plates 23 with automatic lifting and adjustment are set on both sides of the dyeing mechanism to press the denim fabric, so that the fabric at the dyeing mechanism is kept in a horizontal state, which is convenient for dyeing.

[0034] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An auxiliary device for modifying and dyeing denim fabric, comprising a dyeing tank (1) with a water outlet (6), characterized in that: The upper dyeing pool (1) is provided with a water tank (12) containing modifier and dye on its side. The inner wall of the upper dyeing pool (1) is symmetrically connected to rollers (20) via connecting shafts. Denim fabric is wound around the surface of the rollers (20). The inner wall of the upper dyeing pool (1) is symmetrically provided with two sets of sliding grooves (7) between the two rollers (20). A pair of symmetrical first electric slide rails (16) are fixedly connected in the sliding grooves (7). Support plates (8) are slidably connected to the first electric slide rails (16) via sliders (17). The dyeing mechanism is installed between the two support plates (8) on the same side. The dyeing mechanism includes a main pipe (9) fixed on one of the support plates (8). Multiple branch pipes (10) are fixedly connected at equal intervals on the side wall of the main pipe (9). The end of the branch pipe (10) away from the main pipe (9) is fixedly connected to another support plate (8). Multiple nozzles (19) are installed at equal intervals on the bottom wall of the branch pipe (10). The two support plates (8) that are symmetrically arranged on the top and bottom are fixedly connected to a second electric slide rail at one end close to each other. An electric push rod (21) is slidably connected on the second electric slide rail. A scraper (22) is fixedly connected to the end of the electric push rod (21) away from the support plate (8).

2. The auxiliary device for modifying and dyeing denim fabric according to claim 1, characterized in that: Two connecting shafts located outside the upper dyeing pool (1) are fitted with belt pulleys (4), and the two belt pulleys (4) are connected by a belt (5). A controller (2) is fixedly connected to the side of the upper dyeing pool (1), and a servo motor (3) is fixedly connected to the controller (2), and the output end of the servo motor (3) is connected to one of the connecting shafts.

3. The auxiliary device for modifying and dyeing denim fabric according to claim 1, characterized in that: The top of the water tank (12) is fixedly connected to a suction pump, and the output end and input end of the suction pump are respectively connected to connecting pipes extending into the water tank (12) and into the dyeing pool (1).

4. The auxiliary device for modifying and dyeing denim fabric according to claim 1, characterized in that: A connector (11) is threaded onto the connecting pipe located in the dyeing pool (1), and the connector (11) is connected to the corresponding two support plates (8) through the conveying pipe (13).

5. The auxiliary device for modifying and dyeing denim fabric according to claim 1, characterized in that: The inner wall of the dyeing pool (1) is symmetrically fixed with support frames (14), and the two support frames (14) are located on the inner side of the roller (20).

6. The auxiliary device for modifying and dyeing denim fabric according to claim 5, characterized in that: The support frame (14) has multiple telescopic rods (15) fixedly connected at equal intervals at its bottom end. The movable end of the telescopic rod (15) is fixedly connected to a pressure plate (23) made of magnetic material. A compression spring (18) is sleeved on the surface of the movable end of the telescopic rod (15). The two ends of the compression spring (18) are fixedly connected to the cross section of the fixed end of the telescopic rod (15) and the pressure plate (23) respectively. An electromagnetic block is fixedly connected to the fixed end of the telescopic rod (15) near the end of the compression spring (18). The electromagnetic block is magnetically attracted to the pressure plate (23).

7. The auxiliary device for modifying and dyeing denim fabric according to claim 1, characterized in that: The first electric slide rail (16), the second electric slide rail, the servo motor (3), the electromagnetic block, the suction pump and the electric push rod (21) are all electrically connected to the controller (2).

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