Integrated fabric dyeing and drying device and method for improving dyeing uniformity

Abstract

The invention relates to the field of fabric drying, in particular to an integrated fabric dyeing and drying device and method for improving dyeing uniformity. The coloring unit comprises a coloring shell vertically arranged on the upper portion of the dyeing roller on the upper side, an opening is formed in the lower portion of the coloring shell, a coloring roller is rotationally arranged in the coloring shell, the axis of the coloring roller is parallel to the axis of the dyeing roller, the coloring roller is located at the opening of the coloring shell, and a supply unit for supplying paint to the coloring shell is arranged on one side of the coloring shell. The supply unit comprises a supply shell arranged on one side of the coloring shell, a supply pipe is arranged between the supply shell and the coloring shell, a feeding port and a discharging port are formed in the bottom of the supply shell, the two ends of the supply pipe communicate with the discharging port of the supply shell and the coloring shell correspondingly, and a pressure block is movably arranged in the supply shell in the vertical direction. A supply cavity is formed between the lower portion of the pressure block and the supply shell. According to the invention, the uniformity during dyeing is improved.

Description

Technical Field

[0001] The invention relates to the field of fabric drying, and in particular to an integrated fabric dyeing and drying device and method for improving dyeing uniformity. Background Art

[0002] When two-color printing and dyeing is performed on fabrics, high-temperature printing is generally used directly on the fabric or different colors of dyed yarns are used for computer weaving to form mixed-color fabrics. The mixed-color fabrics formed by these two methods are high in cost, easy to fade, and have low dyeing efficiency and small output; the latter has relatively high requirements on processing technology, and the color material is poor, the color is not bright enough, and the scrap rate is relatively high.

[0003] Chinese patent CN108754930B discloses an integrated dyeing and drying device for mixed-color fabrics, comprising a machine body, a workbench arranged in the machine body for supporting fabrics, a first conveying roller and a second conveying roller for conveying fabrics are arranged at both ends of the workbench in the machine body, a dyeing roller straddling the fabric is arranged on the workbench; no less than two dye boxes are arranged above the dyeing roller, and overflow weirs are arranged on the dye boxes, guide plates are arranged at the outlet of the overflow weir, and partition strips for separating dyes of different colors are arranged on the guide plates, the bottom of the guide plate is close to the upper part of the dyeing roller near the fabric inlet end, and the surface of the workbench is arranged as a material penetration plate, A first collecting trough and a second collecting trough corresponding to the dye box and a mixing trough arranged between the first collecting trough and the second collecting trough are arranged at the bottom of the infiltration plate, an oven is also arranged in the machine body, and the cloth passes through the oven and extends to the discharge port on the machine body; the first collecting trough and the second collecting trough are closed and suction fans I and II are respectively arranged on their sides; a movable pressing roller is arranged on the top of the dyeing roller, and lifting cylinders located above the pressing roller are connected at both ends of the pressing roller, bearing seats are arranged at both ends of the dyeing roller, and a supporting oil cylinder for lifting the bearing seat is arranged on the workbench, and one end of the dyeing roller extends out of the bearing seat and is connected to a transmission motor.

[0004] The above scheme adopts the roller dyeing and printing method to improve the efficiency of two-color dyeing and printing. However, the use of dyeing rollers for rapid roller printing is prone to color breakage due to the dyeing rollers not being coated with paint in time, that is, uneven dyeing will occur when dyeing and printing fabrics. At the same time, there is still a certain distance between the dyeing rollers and the oven. During the transportation process, the surface of the fabric that has just been dyed is in a wet state, and cross-mixing of colors is likely to occur at the intersection of the two colors. Summary of the invention

[0005] In view of the above problems, an integrated fabric dyeing and drying device and method for improving dyeing uniformity are provided. By setting a supply shell and a pressure block in the supply shell, when supplying paint to the coloring shell, the paint is first injected into the supply shell, so that the paint in the supply shell can be stably discharged under the action of the pressure block, thereby ensuring the stability of the paint when being discharged. Through the rolling cooperation of the coloring roller and the dyeing roller, the paint distribution on the dyeing roller can be more uniform. In this way, when the coloring unit is coloring the dyeing roller, the pressure is always constant, and there will be no situation where the paint is more or less.

[0006] To solve the problems of the prior art, the present invention provides an integrated fabric dyeing and drying device with improved dyeing uniformity, comprising a bracket and two dyeing rollers vertically arranged on the bracket, fabrics being clamped between the two dyeing rollers, and the dyeing roller located on the upper side dyes the upper part of the fabric; a coloring unit comprises a coloring shell vertically arranged on the upper part of the upper dyeing roller, an opening is arranged at the lower part of the coloring shell, a coloring roller is rotatably arranged in the coloring shell, the axis of the coloring roller is parallel to the axis of the dyeing roller, the coloring roller is located at the opening of the coloring shell, a supply unit for supplying paint to the coloring shell is arranged on one side of the coloring shell, the supply unit comprises a supply shell arranged on one side of the coloring shell, a supply pipe is arranged between the supply shell and the coloring shell, a feed port and a discharge port are respectively arranged at the bottom of the supply shell, two ends of the supply pipe are respectively connected with the discharge port of the supply shell and the coloring shell, a pressure block is arranged to move in the supply shell along the vertical direction, a supply cavity is formed between the lower part of the pressure block and the supply shell, and the supply cavity is connected with the supply shell through the supply pipe.

[0007] Preferably, a drying unit is provided at the rear end of the coloring unit along the moving direction of the fabric, and the drying unit includes two drying rollers arranged in the vertical direction. When the two drying rollers move, they synchronously approach or move away from each other in the vertical direction, and the fabric passes between the two drying rollers. Drying holes are evenly provided on the peripheral wall of each drying roller, and a ventilation groove is provided through the middle of the drying roller, which is connected to the drying holes. An air pump connected to the ventilation groove is provided at one end of the drying roller, and a heating wire is provided at the connection between the air pump and the drying roller.

[0008] Preferably, two coloring units are provided, and the two coloring units are arranged along the axis of the dyeing roller. A uniform roller is rotatably provided on one side of the two coloring units arranged in a straight line, and the uniform roller and the dyeing roller are in rolling cooperation.

[0009] Preferably, a pressing plate is provided on the upper part of the dyeing roller, a partition plate is horizontally provided above the pressing plate, the partition plate is fixedly provided in the upper color shell, an extension rod is vertically fixedly provided on the upper part of the pressing plate, the extension rod vertically penetrates the partition plate and slides with the partition plate, there is a gap between the upper end of the extension rod and the upper part of the outer shell, and a first spring is provided in the gap, with both ends fixedly connected to the upper end of the upper color shell and the upper end of the extension rod respectively.

[0010] Preferably, the pressing plate is an arc-shaped structure, and a plurality of drag reducing wheels are arranged on the pressing plate. The drag reducing wheels are evenly distributed on the pressing plate around the axis of the pressing plate, and the pressing plate rolls with the coloring roller through the drag reducing wheels.

[0011] Preferably, the partition plate vertically divides the upper color shell into a first cavity and a second cavity from top to bottom. The second cavity is used to store paint. An exhaust pipe is arranged on the upper part of the partition plate. The exhaust pipe is interconnected with the second cavity, and a valve body is arranged on the exhaust pipe.

[0012] Preferably, a lifting unit for driving the upper color shell to move in the vertical direction is provided on the upper part of the upper color shell, and the lifting unit includes a threaded rod fixedly provided on the upper part of the upper color shell, and a gear ring is provided on the outer periphery of the threaded rod, and the height of the gear ring is constant. The inner ring of the gear ring is threadedly matched with the threaded rod, and the threaded rod can only move in the vertical direction.

[0013] Preferably, a linear drive for driving the drying roller to rise and fall is provided above the drying roller located on the upper side, and a first synchronization unit is provided on one side of the drying unit, the first synchronization unit includes two synchronization plates, the two synchronization plates are respectively provided at the ends of the two drying rollers, a second gear is rotatably provided between the two synchronization plates, and meshing teeth are provided on one side of the two synchronization plates facing the second gear, and the second gear is respectively meshed with the two synchronization plates.

[0014] Preferably, a second synchronization unit is also provided at the end of each drying roller, and the second synchronization unit includes three second synchronization wheels, and the three second synchronization wheels are arranged in a triangular structure. A second synchronization belt is provided on the outer periphery of the three second synchronization wheels, and the second synchronization wheels cooperate with the second synchronization belt transmission. A third gear is fixedly provided at the end of one of the second synchronization wheels, and the third gears in the two second synchronization units are meshed with each other. A second rotation driver for driving the third gear to rotate is provided at the end of one of the third gears.

[0015] The present invention also relates to an integrated fabric dyeing and drying method for improving dyeing uniformity, using an integrated fabric dyeing and drying device for improving dyeing uniformity, and the specific steps are as follows: S1. Before dyeing, the paint is pre-injected into the supply cavity. At this time, the amount of paint entering the supply shell is greater than the amount of paint discharged from the discharge port. The coloring roller is at the lowest position and the opening at the bottom of the coloring shell is blocked. After the paint is injected for a period of time, the coloring shell is filled with paint, and there is also a certain amount of paint in the supply shell. The pressure block in the supply shell provides thrust to the paint in the supply cavity; S2. During dyeing, the amount of paint entering the supply shell is the same as the amount of paint discharged per unit time. The coloring shell drives the coloring roller to descend, and makes the coloring roller contact and squeeze with the dyeing roller. The coloring roller slides into the coloring shell under the squeezing action of the dyeing roller. The coloring roller no longer blocks the opening of the coloring shell. The paint in the coloring shell overflows from the opening. The pressure block provides a stable pressure on the overflowed paint. The paint is coated on the dyeing roller, and the dyeing roller transfers the paint to the fabric by rotating itself. S3. The dyed fabric passes between two drying rollers of the drying unit. The two drying rollers are in contact with the upper and lower parts of the fabric respectively. The hot air flow in the drying rollers takes away the evaporated water vapor through the drying holes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a supply shell and a pressure block inside the supply shell, when supplying paint to the coloring shell, the paint is first injected into the supply shell, so that the paint in the supply shell can be stably discharged under the action of the pressure block, thereby ensuring the stability of the paint during discharge. When the coloring roller at the opening of the coloring shell is coloring the dyeing roller on the upper side, the dyeing roller and the coloring roller roll and cooperate, and when dyeing, the coloring roller retracts into the coloring shell, and the paint in the coloring shell flows out through the opening of the coloring shell. The rolling coloring roller guides the paint in the coloring shell. This is because the paint itself has viscosity. Through the rolling cooperation of the coloring roller and the dyeing roller, the paint on the dyeing roller can be more evenly distributed. In this way, when the coloring unit is coloring the dyeing roller, the pressure is always constant, and there will be no situation where the paint is sometimes more or sometimes less, thereby improving the uniformity of dyeing; 2. After the fabric is colored by the coloring unit, it passes between two drying rollers. At this time, the two drying rollers clamp the upper and lower parts of the fabric respectively, and the air pump blows the filtered air into the ventilation groove. The heating wire arranged at the front end of the air pump heats the air entering the ventilation groove. In this way, the air entering the ventilation groove can heat the fabric, so that the paint attached to the fabric is dried. When drying the paint, the surface of the fabric is not directly dried by hot air, but the fabric is heated by the hot air flow flowing from the ventilation groove. Then, the moisture in the paint attached to the fabric flows into the ventilation groove through the drying holes and is taken away by the flowing air flow. In this way, when two-color dyeing is performed, cross-printing and dyeing at the intersection of the two colors during the air-drying process is avoided; 3. By setting up the second synchronization unit, the two drying rollers can rotate in opposite directions at the same speed, thus avoiding the friction between the drying rollers and the end surface of the fabric due to the difference in rotation speed of the two drying rollers; 4. A uniform roller is set on one side of the coloring unit to cooperate with the dyeing roller. The uniform roller can evenly spread the paint gathered at the end of the coloring roller. Since the distance between the ends of the two coloring rollers in the two coloring units is small, the two colors of paint can cover the original blank part during the uniform application of the uniform roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a three-dimensional schematic diagram of an integrated fabric dyeing and drying device for improving dyeing uniformity when coating the fabric Figure 1 ; Figure 2 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 The present invention is a three-dimensional schematic diagram of an integrated fabric dyeing and drying device for improving dyeing uniformity when coating the fabric Figure 2 ; Figure 4 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Figure 3 A partial enlarged schematic diagram of point B in the middle; Figure 5 It is a side view of an integrated fabric dyeing and drying device for improving dyeing uniformity according to the present invention with part of the support removed; Figure 6 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Figure 5 Schematic cross-sectional view at CC in the middle; Figure 7 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Figure 6 A partial enlarged schematic diagram of point D in the middle; Figure 8 This is a cutaway perspective diagram of an integrated fabric dyeing and drying device for improving dyeing uniformity according to the present invention. Figure 1 ; Fig. 9 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Figure 8 A partial enlarged schematic diagram of point E in the middle; Fig.10 This is a cutaway perspective diagram of an integrated fabric dyeing and drying device for improving dyeing uniformity according to the present invention. Figure 2 ; Fig.11 The invention discloses an integrated fabric dyeing and drying device for improving dyeing uniformity. Fig.10 A partial enlarged schematic diagram of point F in the middle.

[0018] The numbers in the figure are: 1, bracket; 11, dyeing roller; 2, coloring unit; 21, coloring roller; 22, coloring shell; 23, supply unit; 231, supply pipe; 232, supply shell; 233, pressure block; 24, pressing unit; 241, pressing plate; 2411, drag reduction wheel; 242, extension rod; 243, partition plate; 244, first spring; 245, exhaust pipe; 246, valve body; 25, lifting unit; 251, threaded rod; 252, gear ring; 3, fabric; 4, drying unit; 4 1. Drying roller; 411. Ventilation groove; 42. Drying hole; 43. Air pump; 44. First synchronization unit; 441. Synchronous plate; 442. Second gear; 45. Linear drive; 46. Second synchronization unit; 461. Second synchronization wheel; 462. Second synchronization belt; 463. Third gear; 464. Second spring; 47. Second rotation drive; 5. Uniform roller; 6. Drive unit; 61. First gear; 62. First synchronization wheel; 63. First synchronization belt; 64. First rotation drive. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 , Figure 3 , Figure 6 , Figure 7 and Fig. 9 : An integrated fabric dyeing and drying device for improving dyeing uniformity, comprising a bracket 1 and two dyeing rollers 11 vertically arranged on the bracket 1, a fabric 3 is clamped between the two dyeing rollers 11, and the dyeing roller 11 located on the upper side dyes the upper part of the fabric 3; a coloring unit 2 comprises a coloring shell 22 vertically arranged on the upper part of the upper dyeing roller 11, an opening is arranged at the lower part of the coloring shell 22, a coloring roller 21 is rotatably arranged in the coloring shell 22, the axis of the coloring roller 21 is parallel to the axis of the dyeing roller 11, the coloring roller 21 is located at the opening of the coloring shell 22, and a pair of coloring rollers are arranged on one side of the coloring shell 22 A supply unit 23 for supplying paint to the coloring shell 22 includes a supply shell 232 arranged on one side of the coloring shell 22, a supply pipe 231 is arranged between the supply shell 232 and the coloring shell 22, a feed port and a discharge port are respectively arranged at the bottom of the supply shell 232, two ends of the supply pipe 231 are respectively connected with the discharge port of the supply shell 232 and the coloring shell 22, a pressure block 233 is arranged in the supply shell 232 for movement in the vertical direction, a supply cavity is formed between the lower part of the pressure block 233 and the supply shell 232, and the supply cavity is connected with the supply shell 232 through the supply pipe 231.

[0021] The integrated fabric dyeing and drying device includes two processes, dyeing and drying. Two dyeing rollers 11 are vertically arranged on the bracket 1, and only the dyeing roller 11 located on the upper side has a dyeing function. In the existing dyeing process for the fabric 3, it is necessary to first apply the paint on the dyeing roller 11 located on the upper side, and then transfer the paint to the fabric 3 through the dyeing roller 11 on the upper side. However, during the transfer process of the dyeing roller 11, the transfer will be interrupted, that is, due to the instability of the paint supply pressure, the amount of paint falling on the dyeing roller 11 is sometimes more and sometimes less. When there is too much paint on the dyeing roller 11, more paint will accumulate on the dyeing roller 11, which will cause more paint to be transferred to the fabric 3 during the transfer process, making the paint coating of the fabric 3 too thick. When there is less paint on the dyeing roller 11, the dyeing roller 11 will not be able to completely transfer the paint to the fabric 3 during the transfer.

[0022] In order to avoid the above situation, the coloring unit 2 is further optimized so that when the coloring unit 2 is coloring the dyeing roller 11, the pressure of the paint is always constant, thereby ensuring that the amount of paint applied to the dyeing roller 11 is always constant, and ensuring the transfer quality of the fabric 3. The specific structure and working steps of the coloring unit 2 are as follows: A pump body is provided on one side of the supply shell 232, and the pump body is used to inject the paint into the supply shell 232 from the feed port of the supply shell 232. When the coloring unit 2 is just used, the volume of the supply cavity formed between the lower part of the pressure block 233 and the supply shell 232 is zero. As the pump body gradually injects the paint into the supply cavity, the pressure block 233 located in the supply shell 232 rises in the vertical direction under the action of the paint, and the paint in the supply cavity is squeezed into the supply pipe 231 through the discharge port under the gravity of the pressure block 233, so that the paint can be smoothly supplied to the coloring shell 22. It is worth noting that when the pump body is operating normally, the amount of paint supplied may vary. The paint supplied by the pump body is injected into the supply cavity, and the paint in the supply cavity is pressed into the coloring shell 22 under the action of the pressure block 233, ensuring that the pressure of the paint flowing into the coloring shell 22 is always constant. This is because when the paint enters the supply cavity, the thrust of the paint in the supply cavity flowing into the supply pipe 231 is provided by the pressure block 233. In order to ensure the continuity of paint supply, the pump body needs to operate at high power at the beginning when supplying paint to the supply shell 232. Since the pressure of the pressure block 233 is constant, the amount of paint discharged from the supply shell 232 under the action of the pressure block 233 is always constant per unit time, and the amount of paint entering the supply shell 232 is determined by the power of the pump body. In this way, when the pump body just starts to run, the pump body operates at high power, so that the amount of paint pumped into the supply shell 232 per unit time is greater than the amount of paint flowing out of the supply shell 232. After a certain amount of paint is accumulated in the supply chamber, the power of the pump body drops to a preset power. At this time, the amount of paint pumped into the supply shell 232 by the pump body per unit time is the same as the amount of paint discharged from the supply shell 232. In this way, even if the supply of the pump body fluctuates, it can ensure that the supply shell 232 can stably supply the coloring shell 22.

[0023] When the coloring roller 21 disposed at the opening of the coloring shell 22 is coloring the dyeing roller 11 on the upper side, the dyeing roller 11 and the coloring roller 21 are rolling and matched, and when dyeing, the coloring roller 21 is retracted into the coloring shell 22, and the paint in the coloring shell 22 flows out through the opening of the coloring shell 22. The rolling coloring roller 21 guides the paint in the coloring shell 22. This is because the paint itself has viscosity. Through the rolling cooperation of the coloring roller 21 and the dyeing roller 11, the paint on the dyeing roller 11 can be distributed more evenly. In this way, when the coloring unit 2 is coloring the dyeing roller 11, the pressure is always constant, and there will be no situation where the paint is more or less, which improves the uniformity of dyeing.

[0024] Reference Figure 5 , Figure 6 , Figure 8 and Fig.11 : A drying unit 4 is arranged at the rear end of the coloring unit 2 along the moving direction of the fabric 3, and the drying unit 4 includes two drying rollers 41 arranged along the vertical direction. When the two drying rollers 41 move, they synchronously approach or move away from each other in the vertical direction, and the fabric 3 passes between the two drying rollers 41. Drying holes 42 are evenly arranged on the peripheral wall of each drying roller 41, and a ventilation groove 411 is opened through the middle of the drying roller 41, and the ventilation groove 411 is communicated with the drying holes 42. An air pump 43 connected to the ventilation groove 411 is arranged at one end of the drying roller 41, and a heating wire is arranged at the connection between the air pump 43 and the drying roller 41.

[0025] After the fabric 3 is colored by the coloring unit 2, the fabric 3 passes between the two drying rollers 41. At this time, the two drying rollers 41 clamp the upper and lower parts of the fabric 3 respectively, and the air pump 43 blows filtered air into the ventilation groove 411. The heating wire arranged at the front end of the air pump 43 heats the air entering the ventilation groove 411. The air entering the ventilation groove 411 can heat the fabric 3, so that the paint attached to the fabric 3 is dried. When drying the paint, the surface of the fabric 3 is not dried directly by hot air, but by ventilation. The fabric 3 is heated by the hot air flow flowing through the ventilation groove 411, and then the moisture in the paint attached to the fabric 3 flows into the ventilation groove 411 through the drying hole 42 and is carried away by the flowing air flow, thereby avoiding the cross-printing and dyeing at the intersection of the two colors during the air-drying process when two-color dyeing is performed. If direct air-drying is performed by hot air, the air flow blowing to the surface of the fabric 3 will enhance the fluidity of the paint attached to the fabric 3, which will lead to cross-printing and dyeing at the intersection of the dyeing when two-color dyeing is performed, affecting the dyeing quality of the fabric 3.

[0026] Reference Figure 7 : Two coloring units 2 are provided, and the two coloring units 2 are arranged along the axis of the dyeing roller 11. A uniform roller 5 is rotatably provided on one side of the two coloring units 2 arranged in a straight line, and the uniform roller 5 and the dyeing roller 11 are rollingly matched.

[0027] Each coloring unit 2 can only dye one color. When two-color dyeing is performed, two coloring units 2 need to be set up. However, there is a distance between the coloring rollers 21 in the two coloring units 2. If the uniform roller 5 is not set up to spread the two colors evenly, there will be a blank part between the two colors when the fabric 3 is dyed, which will lead to the appearance of defective products. In order to avoid the above situation, a uniform roller 5 that rolls with the dyeing roller 11 is set on one side of the coloring unit 2. The uniform roller 5 can spread the paint gathered at the end of the coloring roller 21 evenly. Since the distance between the ends of the two coloring rollers 21 in the two coloring units 2 is small, during the uniform application of the uniform roller 5, the two colors of paint can cover the original blank part.

[0028] Reference Figure 7-Figure 9 A pressing unit 24 is arranged on the upper part of the dyeing roller 11, and the pressing unit 24 includes a pressing plate 241, and a partition plate 243 is horizontally arranged above the pressing plate 241. The partition plate 243 is fixedly arranged in the upper color shell 22, and an extension rod 242 is vertically fixedly arranged on the upper part of the pressing plate 241. The extension rod 242 vertically penetrates the partition plate 243 and slides with the partition plate 243. There is a gap between the upper end of the extension rod 242 and the upper part of the outer shell, and a first spring 244 is arranged in the gap, and its two ends are respectively fixedly connected to the upper end of the upper color shell 22 and the upper end of the extension rod 242.

[0029] Reference Fig. 9 The pressing plate 241 is an arc-shaped structure, and a plurality of drag reducing wheels 2411 are arranged on the pressing plate 241. The drag reducing wheels 2411 are evenly distributed on the pressing plate 241 around the axis of the pressing plate 241. The pressing plate 241 rolls with the coloring roller 21 through the drag reducing wheels 2411.

[0030] Reference Fig. 9 : The partition plate 243 divides the upper color shell 22 into a first cavity and a second cavity from top to bottom along the vertical direction. The second cavity is used to store paint. An exhaust pipe 245 is arranged on the upper part of the partition plate 243. The exhaust pipe 245 is connected to the second cavity, and a valve body 246 is arranged on the exhaust pipe 245.

[0031] When the supply shell 232 supplies paint to the coloring shell 22, in order to fill the coloring shell 22 and ensure that the subsequent paint will not be affected by the air remaining in the coloring shell 22 when it is discharged from the coloring shell 22, an exhaust pipe 245 is provided. When the supply shell 232 supplies paint to the coloring shell 22, the valve body 246 provided on the exhaust pipe 245 is in an open state, and at this time the coloring roller 21 blocks the opening of the coloring shell 22, and then observe whether the paint flows into the exhaust pipe 245. When it is observed that the paint flows into the exhaust pipe 245, the valve body 246 is closed, and the coloring shell 22 descends, so that the coloring roller 21 is pressed on the dyeing roller 11. Under the action of pressure, the coloring roller 21 retracts into the coloring shell 22, and the paint in the second cavity flows out from the opening of the coloring shell 22.

[0032] Reference Fig. 9 and Fig.10 A lifting unit 25 for driving the upper color shell 22 to move in the vertical direction is arranged on the upper part of the upper color shell 22. The lifting unit 25 includes a threaded rod 251 fixedly arranged on the upper part of the upper color shell 22. A gear ring 252 is sleeved on the outer periphery of the threaded rod 251. The height of the gear ring 252 is constant. The inner ring of the gear ring 252 is threadedly matched with the threaded rod 251. The threaded rod 251 can only move in the vertical direction.

[0033] When performing two-color dyeing, it is necessary to set two coloring units 2 above the dyeing roller 11. In order to ensure that the two coloring units 2 can be lifted and lowered synchronously, a lifting unit 25 is set on the upper part of each coloring shell 22. A driving unit 6 for driving the two lifting units 25 to operate is also set between the two lifting units 25. The driving unit 6 includes a first gear 61, a first synchronous wheel 62 and a first synchronous belt 63. The first gear 61 is set on one side of any one of the gear rings 252 and meshes with the gear ring 252. There are two first synchronous wheels 62, and the two first synchronous wheels 62 are respectively set on the upper parts of the two gear rings 252. The first synchronous belt 63 is sleeved on the two first synchronous wheels 62. The first synchronous belt 63 is matched with the first synchronous wheel 62 for transmission. A first rotation driver 64 for driving the first gear 61 to rotate is set at the end of the first gear 61. The first rotation driver 64 is preferably a servo motor. When the gear ring 252 rotates, the threaded rod 251 moves in the vertical direction.

[0034] Reference Figure 4 and Figure 5: A linear drive 45 for driving the drying roller 41 to rise and fall is arranged above the drying roller 41 located on the upper side, and a first synchronization unit 44 is arranged on one side of the drying unit 4. The first synchronization unit 44 includes two synchronization plates 441, and the two synchronization plates 441 are respectively arranged at the ends of the two drying rollers 41. A second gear 442 is rotatably arranged between the two synchronization plates 441. Meshing teeth are arranged on the side of the two synchronization plates 441 facing the second gear 442, and the second gear 442 is respectively meshed with the two synchronization plates 441.

[0035] Through the meshing of the second gear 442 and the two synchronous plates 441 , the two drying rollers 41 can be moved closer or farther away synchronously.

[0036] Reference Figure 2 , Fig.10 and Fig.11 : A second synchronization unit 46 is also provided at the end of each drying roller 41, and the second synchronization unit 46 includes three second synchronization wheels 461, which are arranged in a triangular structure, and a second synchronization belt 462 is sleeved on the outer periphery of the three second synchronization wheels 461. The second synchronization wheels 461 are matched with the second synchronization belt 462 for transmission, and a third gear 463 is fixedly provided at the end of one of the second synchronization wheels 461. The third gears 463 in the two second synchronization units 46 are meshed with each other, and a second rotation driver 47 for driving the third gear 463 to rotate is provided at the end of one of the third gears 463.

[0037] The second rotation driver 47 is preferably a servo motor. The second synchronization unit 46 corresponding to each drying roller 41 includes three second synchronization wheels 461. Two of the three second synchronization wheels 461 are fixedly connected to the end of the drying roller 41 and the third gear 463, respectively. The remaining second synchronization wheel 461 acts as a tension wheel. A second spring 464 in a stretched state is provided on the second synchronization wheel 461. The second spring 464 exerts a pulling force on the second synchronization wheel 461, so that the second synchronization wheel 461 is always in contact with the second synchronization belt 462, thereby avoiding the second synchronization belt 462 from slipping during transmission. The two drying rollers 41 achieve the effect of synchronous reverse rotation under the transmission cooperation of the corresponding two third gears 463, thereby ensuring that when the fabric 3 passes between the two drying rollers 41, there is no relative friction between the drying roller 41 and the end surface of the fabric 3, thereby avoiding the drying holes 42 on the drying roller 41 from scratching the fabric 3.

[0038] Reference Figure 1-Figure 11 The present invention also relates to an integrated fabric dyeing and drying method for improving dyeing uniformity, using an integrated fabric dyeing and drying device for improving dyeing uniformity, and the specific steps are as follows: S1. Before dyeing, paint is pre-injected into the supply cavity. At this time, the amount of paint entering the supply shell 232 is greater than the amount of paint discharged from the discharge port. The coloring roller 21 is at the lowest position and blocks the opening at the bottom of the coloring shell 22. After the paint is injected for a period of time, the coloring shell 22 is filled with paint, and a certain amount of paint is also stored in the supply shell 232. The pressure block 233 in the supply shell 232 provides thrust for the paint in the supply cavity; S2. During dyeing, the amount of paint entering the supply shell 232 is the same as the amount of paint discharged per unit time. The coloring shell 22 drives the coloring roller 21 to descend, and makes the coloring roller 21 contact and squeeze with the dyeing roller 11. The coloring roller 21 slides into the coloring shell 22 under the squeezing action of the dyeing roller 11. The coloring roller 21 no longer blocks the opening of the coloring shell 22. The paint in the coloring shell 22 overflows from the opening. The pressure block 233 provides a stable pressure on the overflowed paint. The paint is coated on the dyeing roller 11, and the dyeing roller 11 transfers the paint to the fabric 3 by rotating itself. S3, the dyed fabric 3 passes between the two drying rollers 41 of the drying unit 4, and the two drying rollers 41 are in contact with the upper and lower parts of the fabric 3 respectively. The hot air flow flowing in the drying rollers 41 takes away the evaporated water vapor through the drying holes 42.

[0039] Working principle: A pump body is provided on one side of the supply shell 232, and the pump body is used to inject the paint from the feed port of the supply shell 232 into the supply shell 232. When the coloring unit 2 is first used, the volume of the supply cavity formed between the lower part of the pressure block 233 and the supply shell 232 is zero. As the pump body gradually injects the paint into the supply cavity, the pressure block 233 located in the supply shell 232 rises in the vertical direction under the action of the paint, and the paint in the supply cavity is squeezed into the supply pipe 231 through the discharge port under the gravity of the pressure block 233, so that the paint can be smoothly supplied to the coloring shell 22.

[0040] When the coloring roller 21 disposed at the opening of the coloring shell 22 is coloring the dyeing roller 11 on the upper side, the dyeing roller 11 and the coloring roller 21 are rolling and matched, and when dyeing, the coloring roller 21 is retracted into the coloring shell 22, and the paint in the coloring shell 22 flows out through the opening of the coloring shell 22. The rolling coloring roller 21 guides the paint in the coloring shell 22. This is because the paint itself has viscosity. Through the rolling cooperation of the coloring roller 21 and the dyeing roller 11, the paint on the dyeing roller 11 can be distributed more evenly. In this way, when the coloring unit 2 is coloring the dyeing roller 11, the pressure is always constant, and there will be no situation where the paint is more or less, which improves the uniformity of dyeing.

[0041] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An integrated fabric dyeing and drying device for improving dyeing uniformity, comprising a support (1) and two dyeing rollers (11) vertically arranged on the support (1), a fabric (3) being sandwiched between the two dyeing rollers (11), and the dyeing roller (11) located on the upper side dyes the upper part of the fabric (3); characterized in that: The coloring unit (2) comprises a coloring shell (22) vertically arranged on the upper part of the upper dyeing roller (11), the lower part of the coloring shell (22) is provided with an opening, a coloring roller (21) is rotatably arranged in the coloring shell (22), the axis of the coloring roller (21) is parallel to the axis of the dyeing roller (11), the coloring roller (21) is located at the opening of the coloring shell (22), a supply unit (23) for supplying paint to the coloring shell (22) is arranged on one side of the coloring shell (22), the supply unit (23) comprises a supply shell (232) arranged on one side of the coloring shell (22), a supply pipe (231) is arranged between the supply shell (232) and the coloring shell (22), and the supply shell (23 The bottom of the coloring unit (2) is provided with a feed inlet and a discharge outlet, respectively, and both ends of the supply pipe (231) are connected to the discharge outlet of the supply shell (232) and the coloring shell (22), respectively; a pressure block (233) is arranged in the supply shell (232) to move in the vertical direction, and a supply cavity is formed between the lower part of the pressure block (233) and the supply shell (232), and the supply cavity is connected to the supply shell (232) through the supply pipe (231); two coloring units (2) are provided, and the two coloring units (2) are arranged along the axis of the coloring roller (11); a uniform roller (5) is rotatably arranged on one side of the two coloring units (2) arranged in a straight line, and the uniform roller (5) and the coloring roller (11) are rollingly matched.

2. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 1, characterized in that: A drying unit (4) is arranged at the rear end of the coloring unit (2) along the moving direction of the fabric (3). The drying unit (4) comprises two drying rollers (41) arranged along the vertical direction. When the two drying rollers (41) move, they synchronously approach or move away from each other along the vertical direction. The fabric (3) passes between the two drying rollers (41). Drying holes (42) are evenly arranged on the peripheral wall of each drying roller (41). A ventilation groove (411) is provided through the middle of the drying roller (41). The ventilation groove (411) is communicated with the drying holes (42). An air pump (43) communicated with the ventilation groove (411) is arranged at one end of the drying roller (41). A heating wire is arranged at the connection between the air pump (43) and the drying roller (41).

3. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 1, characterized in that: A pressing plate (241) is arranged on the upper part of the dyeing roller (11), a partition plate (243) is arranged horizontally above the pressing plate (241), the partition plate (243) is fixedly arranged in the upper color shell (22), an extension rod (242) is vertically fixedly arranged on the upper part of the pressing plate (241), the extension rod (242) vertically penetrates the partition plate (243) and slidably cooperates with the partition plate (243), a gap exists between the upper end of the extension rod (242) and the upper part of the shell, and a first spring (244) is arranged in the gap, with two ends respectively fixedly connected to the upper end of the upper color shell (22) and the upper end of the extension rod (242).

4. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 3, characterized in that: The pressing plate (241) is an arc-shaped structure. A plurality of drag reduction wheels (2411) are arranged on the pressing plate (241). The drag reduction wheels (2411) are evenly distributed on the pressing plate (241) around the axis of the pressing plate (241). The pressing plate (241) rolls with the coloring roller (21) via the drag reduction wheels (2411).

5. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 3, characterized in that: The partition plate (243) divides the coloring shell (22) into a first cavity and a second cavity from top to bottom in a vertical direction. The second cavity is used to store paint. An exhaust pipe (245) is provided on the upper part of the partition plate (243). The exhaust pipe (245) is communicated with the second cavity. A valve body (246) is provided on the exhaust pipe (245).

6. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 1, characterized in that: A lifting unit (25) is provided on the upper portion of the upper color shell (22) for driving the upper color shell (22) to move in a vertical direction. The lifting unit (25) comprises a threaded rod (251) fixedly provided on the upper portion of the upper color shell (22). A toothed ring (252) is sleeved on the outer periphery of the threaded rod (251). The height of the toothed ring (252) is constant. The inner ring of the toothed ring (252) is threadably matched with the threaded rod (251). The threaded rod (251) can only move in a vertical direction.

7. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 2, characterized in that: A linear drive (45) for driving the drying roller (41) to rise and fall is arranged above the drying roller (41) located on the upper side. A first synchronization unit (44) is arranged on one side of the drying unit (4). The first synchronization unit (44) comprises two synchronization plates (441). The two synchronization plates (441) are respectively arranged at the ends of the two drying rollers (41). A second gear (442) is rotatably arranged between the two synchronization plates (441). Meshing teeth are arranged on the sides of the two synchronization plates (441) facing the second gear (442). The second gear (442) is respectively meshed with the two synchronization plates (441).

8. The integrated fabric dyeing and drying device for improving dyeing uniformity according to claim 2, characterized in that: A second synchronization unit (46) is also provided at the end of each drying roller (41), the second synchronization unit (46) comprising a third gear (463), and the two corresponding third gears (463) in the two second synchronization units (46) are meshed with each other.

9. An integrated fabric dyeing and drying method for improving dyeing uniformity, using an integrated fabric dyeing and drying device for improving dyeing uniformity as claimed in any one of claims 2 to 8, characterized in that: The specific steps are as follows: S1. Before dyeing, paint is pre-injected into the supply cavity. At this time, the amount of paint entering the supply shell (232) is greater than the amount of paint discharged from the discharge port. The coloring roller (21) is located at the lowest position and blocks the opening at the bottom of the coloring shell (22). After the paint is injected for a period of time, the coloring shell (22) is filled with paint, and a certain amount of paint is also stored in the supply shell (232). The pressure block (233) provides thrust to the paint in the supply cavity. S2, during dyeing, the amount of paint entering and exiting the supply shell (232) per unit time is the same, the dyeing shell (22) drives the dyeing roller (21) to descend, and the dyeing roller (21) and the dyeing roller (11) are in contact and squeezed, the dyeing roller (21) slides into the dyeing shell (22) under the squeezing action of the dyeing roller (11), the dyeing roller (21) no longer blocks the opening of the dyeing shell (22), the paint in the dyeing shell (22) overflows from the opening, the pressure block (233) provides a stable pressure on the overflowing paint, the paint is coated on the dyeing roller (11), and the dyeing roller (11) transfers the paint to the fabric (3) by rotating itself; S3. The dyed fabric (3) passes between two drying rollers (41) of the drying unit (4). The two drying rollers (41) are in contact with the upper and lower parts of the fabric (3) respectively. The hot air flow in the drying rollers (41) carries away the evaporated water vapor through the drying holes (42).

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