Textile fabric printing and dyeing apparatus and method

Abstract

The application discloses a kind of textile fabric printing and dyeing equipment and method, belong to textile fabric printing and dyeing field.A kind of textile fabric printing and dyeing equipment, including workbench, feed roller and discharge roller, further include: setting on workbench, printing and dyeing unit is for printing and dyeing to textile fabric, wherein, printing and dyeing unit is provided with compression mechanism and discharge mechanism, when printing and dyeing unit rotates, compression mechanism can drive discharge mechanism and dye is discharged to the surface of printing and dyeing unit;Setting between workbench and printing and dyeing unit, drive unit, discharge roller can drive printing and dyeing unit along textile fabric both sides synchronous relative rotation by drive unit;Setting on workbench, drying unit, discharge roller can drive drying unit reciprocating movement along textile fabric both sides;The application can overcome the problem that dye is wasted easily in the process of textile fabric printing and dyeing, it is difficult to guarantee textile fabric printing and dyeing effect, printing and dyeing efficiency is low.

Description

Technical Field

[0001] This invention relates to the field of textile fabric printing and dyeing technology, and in particular to a textile fabric printing and dyeing equipment and method. Background Technology

[0002] Textile fabrics refer to the general term for various fabrics processed through textile technology, including cotton, linen, silk, wool, leather, and chemical fibers. They can be used to make a variety of clothing such as fashion wear, casual wear, underwear, and shirts. To improve the appearance of clothing, they are usually dyed. The quality of dyeing directly affects the quality and appearance of the product and is an important factor in determining product sales.

[0003] Currently, textile dyeing typically involves dyeing the fabric first, followed by printing. Printing methods mainly include direct printing, discharge printing, and resist printing, with direct printing being the most widely used. Existing equipment primarily uses dye applied to the surface of the printing rollers. This method not only easily leads to dye waste but also affects equipment operation and makes it difficult to guarantee the dyeing effect on the textile fabric. Furthermore, dyed textile fabrics cannot be stacked after printing and are generally dried using a dryer or by air drying, resulting in low dyeing efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of dye waste, difficulty in ensuring the dyeing effect, and low dyeing efficiency in the existing textile dyeing process, and to propose a textile dyeing equipment and method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A textile fabric dyeing and printing device includes a worktable, a feeding roller, and a discharging roller. It further includes: a dyeing and printing unit disposed on the worktable for dyeing and printing textile fabrics, wherein the dyeing and printing unit is equipped with a compression mechanism and a discharge mechanism; when the dyeing and printing unit rotates, the compression mechanism drives the discharge mechanism to discharge dye onto the surface of the dyeing and printing unit; a drive unit disposed between the worktable and the dyeing and printing unit, wherein the discharging roller can drive the dyeing and printing unit to rotate synchronously relative to each other along both sides of the textile fabric via the drive unit; and a drying unit disposed on the worktable, wherein the discharging roller can drive the drying unit to reciprocate along both sides of the textile fabric. The dyeing and printing unit includes multiple sets of mounting seats symmetrically and fixedly connected to the worktable, wherein the side of the mounting seats closest to each other rotates. A printing and dyeing roller is connected to a mounting base. Two sets of mounting seats on one side are fixedly connected to air slip rings near the roller's axis. The distance between the two sets of printing and dyeing rollers matches the size of the textile fabric. The air slip rings are rotatably connected to the shaft end of the printing and dyeing roller. The printing and dyeing roller has a hollow structure. The compression mechanism includes a mounting groove on the mounting base. A cylinder is fixedly connected inside the mounting groove. A crank connected to the printing and dyeing roller is rotatably connected inside the mounting groove. A piston is slidably connected inside the cylinder. A connecting rod is provided between the piston and the crank. The crank is connected to the axis of the printing and dyeing roller. The two ends of the connecting rod are rotatably connected to the piston and the crank, respectively, and the connecting rod and the crank are eccentrically positioned. The discharge mechanism includes a mounting base fixedly connected to the printing and dyeing roller. The dyeing roller has an internal mounting plate with a vent hole on its shaft that communicates with a slip ring. Multiple positioning cylinders are fixedly connected to the mounting plate. A fixing rod is slidably connected inside each positioning cylinder. A first spring is fixedly connected between the fixing rod and the positioning cylinder. A limit cylinder is fixedly connected to the end of the fixing rod away from the positioning cylinder. Two sets of movable sealing plates are symmetrically slidably connected inside the limit cylinder. A second spring is fixedly connected between the two sets of movable sealing plates. The slip ring is connected to a cylinder in the corresponding direction via a pipe. The limit cylinder and the movable sealing plates are tightly fitted to the inner wall of the dyeing roller. The end of the movable sealing plate away from the limit cylinder is tightly fitted to the inner wall of the dyeing roller. The mounting plate also includes components symmetrically fixedly connected to the mounting base near the feed roller. The air storage box on one side has multiple nozzles on the side near the feed roller. The air storage box is connected to a cylinder on the side away from the air slip ring via a pipe. The nozzles are located on both sides of the textile fabric and are arranged at an angle. The drive unit includes a connecting wheel assembly fixedly connected to a crank. A first drive wheel connected to the discharge roller is rotatably connected to the worktable. A first belt is sleeved between the connecting wheel assembly above and the first drive wheel. Two sets of reversing wheels are symmetrically rotatably connected to the worktable. A second belt is sleeved between the two sets of connecting wheel assemblies and the reversing wheels. The axis of the connecting wheel assembly is on the same straight line as the axis of the dyeing roller. The second belt is arranged in a figure-eight shape between the two sets of connecting wheel assemblies and the reversing wheels.

[0006] To facilitate the drying of the textile fabric after printing and dyeing, and to ensure the drying effect, preferably, the drying unit includes a drying device fixedly connected to a workbench. Two sets of bidirectional reciprocating screws are symmetrically rotatably connected to the workbench. Fixing members are provided between the two bidirectional reciprocating screws on both sides. A drying cylinder is fixedly connected to the side of the fixing members that is close to each other. The fixing members are provided with protrusions that match the bidirectional reciprocating screws. The side of the drying cylinders that is close to each other is conical, and the two sets of drying cylinders are located on the upper and lower sides of the textile fabric, respectively.

[0007] To facilitate control of the reciprocating speed of the drying drum, a drive bevel gear rotatably connected to the worktable and connected to the discharge roller is further included. A rotating shaft is rotatably connected to the side of the worktable near the drive bevel gear. A driven bevel gear meshing with the drive bevel gear is fixedly connected to the rotating shaft. A second drive wheel is fixedly connected to the rotating shaft. A driven wheel is fixedly connected to the bidirectional reciprocating screw. A third belt is sleeved between the second drive wheel and the driven wheel.

[0008] To ensure the stability and synchronicity of the movement of the drying cylinders on both sides, the top end of the bidirectional reciprocating screw extends at least partially to the outside of the worktable, and the top ends of both sets of bidirectional reciprocating screws are fixedly connected to linkage wheels. A fourth belt is sleeved between the two sets of linkage wheels to drive the two sets of bidirectional reciprocating screws to rotate synchronously.

[0009] A dyeing method for textile fabric dyeing equipment further includes the following steps: Step 1: Pass the textile fabric through the feed roller, dyeing roller and discharge roller in sequence, and finally roll it up onto the take-up roller. The take-up roller rolls the textile fabric to move between the feed roller, dyeing roller and discharge roller. Step 2: As the textile fabric moves, it drives the feed roller and discharge roller to rotate, which in turn drives the dyeing roller to rotate on the textile fabric via the drive unit. Step 3: During the rotation of the printing and dyeing roller, the compression mechanism intermittently discharges gas into the printing and dyeing roller, which increases the air pressure inside the printing and dyeing roller and drives the discharge mechanism to add dye to the surface of the printing and dyeing roller. Step 4: At the same time, the gas compressed by the compression mechanism will be sprayed onto the textile fabric by the nozzle before printing and dyeing, to clean the impurities on the surface of the textile fabric. Step 5: After the printing and dyeing are completed, the discharge roller will drive the drying unit to move up and down along the textile fabric to dry the textile fabric. Finally, the printed and dyed textile fabric will be rolled up onto the take-up roller.

[0010] Compared with the prior art, the present invention provides a textile fabric printing and dyeing equipment and method, which has the following beneficial effects: 1. This textile fabric printing and dyeing equipment can print and dye textile fabrics while they are moving through the printing and dyeing unit. At the same time, the printing and dyeing stability can be ensured by the driving unit. This not only improves the printing and dyeing effect of textile fabrics, but also improves the printing and dyeing efficiency of textile fabrics.

[0011] 2. This textile fabric printing and dyeing equipment, through a compression mechanism, intermittently supplies gas into the printing and dyeing rollers according to the rotation of the printing and dyeing unit, so that the dye is quantitatively discharged to the surface of the printing and dyeing rollers through the discharge mechanism. On the one hand, it can reduce dye waste, and on the other hand, it can improve the printing and dyeing effect of textile fabrics. At the same time, it can avoid excess dye from affecting the operation of the equipment, so as to ensure the stability of textile fabric printing and dyeing.

[0012] 3. This textile fabric printing and dyeing equipment, through a compression mechanism, can also remove impurities from the surface of the textile fabric before printing and dyeing, thereby ensuring the cleanliness of the textile fabric during printing and dyeing, thus improving the printing and dyeing quality of the textile fabric, while reducing energy consumption and making it more energy-efficient and environmentally friendly.

[0013] 4. This textile fabric printing and dyeing equipment can dry the textile fabric after printing and dyeing through the drying unit. The drying unit can also be adjusted according to the moving speed of the textile fabric to move along both sides of the textile fabric. While ensuring the drying effect of the textile fabric, it can avoid wrinkles caused by prolonged high temperature and improve the printing and dyeing efficiency of the textile fabric.

[0014] The parts of this device not covered are the same as or can be implemented using existing technologies. This invention can overcome the problems of dye waste, difficulty in ensuring the dyeing effect of textile fabrics, and low dyeing efficiency during the textile fabric printing and dyeing process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a textile fabric printing and dyeing equipment proposed in this invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the structure of a textile fabric printing and dyeing equipment proposed in this invention. Figure 2 .

[0017] Figure 3 This is a schematic diagram of the main structure of a textile fabric printing and dyeing equipment proposed in this invention.

[0018] Figure 4 This is a partial structural schematic diagram of a textile fabric printing and dyeing equipment proposed in this invention.

[0019] Figure 5 This is a schematic cross-sectional view of the cylinder and crank in a textile fabric printing and dyeing equipment proposed in this invention.

[0020] Figure 6 This is a schematic diagram of the structure of the printing roller and air slip ring in a textile fabric printing and dyeing equipment proposed in this invention.

[0021] Figure 7 This is a schematic cross-sectional view of the dyeing roller in a textile fabric dyeing and printing equipment proposed in this invention.

[0022] Figure 8 This invention provides a textile fabric printing and dyeing equipment. Figure 2 A schematic diagram of part A in the diagram.

[0023] In the diagram: 1. Workbench; 2. Feed roller; 3. Discharge roller; 4. Mounting base; 5. Printing roller; 6. Air slip ring; 7. Mounting groove; 8. Cylinder; 9. Crank; 10. Piston; 11. Connecting rod; 12. Air storage box; 13. Nozzle; 14. Connecting wheel assembly; 15. First drive wheel; 16. First belt; 17. Reversing wheel; 18. Second belt; 19. Drying equipment; 20. Bidirectional reciprocating screw; 21. Fixing component; 22. Drying cylinder; 23. Drive bevel gear; 24. Rotating shaft; 25. Driven bevel gear; 26. Second drive wheel; 27. Driven wheel; 28. Third belt; 29. ​​Linkage wheel; 30. Fourth belt; 51. Mounting plate; 52. Vent hole; 53. Positioning cylinder; 54. Fixing rod; 55. First spring; 56. Limiting cylinder; 57. Movable sealing plate; 58. Second spring. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Example 1: Reference Figures 1-8A textile fabric dyeing and printing device includes a worktable 1, a feed roller 2, and a discharge roller 3. It should be noted that the textile fabric is usually dyed and wound up before entering the feed roller 2. After leaving the discharge roller 3, the textile fabric can be directly wound up. The tension required for the movement of the textile fabric is also provided by the winding equipment, which is a conventional method in the prior art and therefore will not be elaborated upon. The device also includes: a dyeing and printing unit mounted on the worktable 1 for dyeing the textile fabric. The dyeing and printing unit is equipped with a compression mechanism and a discharge mechanism. When the dyeing and printing unit rotates, the compression mechanism drives the discharge mechanism to discharge dye onto the surface of the dyeing and printing unit; a drive unit located between the worktable 1 and the dyeing and printing unit, through which the discharge roller 3 drives the dyeing and printing unit to rotate synchronously relative to each other along both sides of the textile fabric; and a drying unit mounted on the worktable 1, through which the discharge roller 3 drives the drying unit to reciprocate along both sides of the textile fabric.

[0027] Reference Figures 1-4 The dyeing unit includes multiple sets of mounting seats 4 symmetrically and fixedly connected to the workbench 1. Dyeing rollers 5 are rotatably connected to the side of the mounting seats 4 that are close to each other. On one side, two sets of mounting seats 4 are fixedly connected to the side of the axis of the dyeing rollers 5. The distance between the two sets of dyeing rollers 5 is matched with the size of the textile fabric. The air rings 6 are rotatably connected to the shaft end of the dyeing rollers 5. The dyeing rollers 5 are hollow structures.

[0028] The specific structure of the air slip ring 6 can be referred to the technical solutions in the prior art, which are known to those skilled in the art and will not be elaborated here. It is only to ensure that the gas can enter stably during the rotation of the dyeing roller 5. Through the relative rotation of the two sets of dyeing rollers 5, the dye can be printed on the textile fabric. In addition, the shape and number of shapes printed on the surface of the dyeing roller 5 are not limited. The operator can adjust them according to actual needs. Tiny holes are provided between the dyeing roller 5 and the surface shape so that the dye can be evenly distributed on the surface shape of the dyeing roller 5.

[0029] Reference Figures 4-5 The compression mechanism includes a mounting groove 7 on the mounting base 4. A cylinder 8 is fixedly connected inside the mounting groove 7. A crank 9 connected to the dyeing roller 5 is rotatably connected inside the mounting groove 7. A piston 10 is slidably connected inside the cylinder 8. A connecting rod 11 is provided between the piston 10 and the crank 9. The crank 9 is connected to the shaft of the dyeing roller 5. The two ends of the connecting rod 11 are rotatably connected to the piston 10 and the crank 9, respectively. The connecting rod 11 and the crank 9 are eccentrically arranged.

[0030] When printing and dyeing textile fabrics, the crank 9 will rotate synchronously, and under the action of the connecting rod 11, the piston 10 will move up and down reciprocally in the cylinder 8. The cylinder 8 includes an air inlet and an air outlet, both of which allow gas to pass through in one direction. This is a conventional method in the prior art, so it will not be described in detail.

[0031] Reference Figures 6-7 The material discharge mechanism includes a mounting plate 51 fixedly connected inside the dyeing roller 5. The shaft of the dyeing roller 5 has a vent hole 52 that communicates with the air slip ring 6. Multiple sets of positioning cylinders 53 are fixedly connected to the mounting plate 51. A fixing rod 54 is slidably connected inside the positioning cylinder 53. A first spring 55 is fixedly connected between the fixing rod 54 and the positioning cylinder 53. A limit cylinder 56 is fixedly connected to the end of the fixing rod 54 away from the positioning cylinder 53. Two sets of movable sealing plates 57 are symmetrically slidably connected inside the limit cylinder 56. A second spring 58 is fixedly connected between the two sets of movable sealing plates 57. The air slip ring 6 is connected to the cylinder 8 in the corresponding direction through a pipe. The limit cylinder 56 and the movable sealing plate 57 are tightly fitted to the inner wall of the dyeing roller 5. The end of the movable sealing plate 57 away from the limit cylinder 56 is tightly fitted to the inner wall of the dyeing roller 5.

[0032] When the dyeing roller 5 rotates once, the compressed gas from the cylinder 8 enters the dyeing roller 5, increasing its internal air pressure. This pushes the limiting cylinder 56 and the movable sealing plate 57 to move, thereby discharging the dye inside the dyeing roller 5 to its surface for subsequent dyeing of textile fabrics. It should be noted that during the movement of the limiting cylinder 56 and the movable sealing plate 57, they are in a sealed state with the inner wall of the dyeing roller 5. Dye can be added through the side of the dyeing roller 5, and each time dye is added, the dye storage space needs to be filled.

[0033] Reference Figure 1 , Figure 3 and Figure 4 It also includes an air storage box 12 that is symmetrically fixedly connected to the mounting base 4 on the side near the feed roller 2. Multiple nozzles 13 are provided on the side of the air storage box 12 near the feed roller 2. The air storage box 12 is connected to the cylinder 8 on the side away from the air slip ring 6 via a pipe. The nozzles 13 are located on both sides of the textile fabric and are inclined.

[0034] The compressed gas in one cylinder 8 enters the gas storage box 12 through the pipe, and is then sprayed onto the textile fabric through the nozzle 13, thereby cleaning the impurities on the surface of the textile fabric to ensure the quality of its printing and dyeing. It should be explained that although the gas is sprayed onto the textile fabric intermittently through the nozzle 13, the gas sprayed from the nozzle 13 has a certain range, so when the gas is sprayed again, there will be no uncleaned parts on the textile fabric.

[0035] Reference Figure 1 and Figure 3 The drive unit includes a connecting wheel assembly 14 fixedly connected to the crank 9, a first drive wheel 15 rotatably connected to the discharge roller 3 on the worktable 1, a first belt 16 sleeved between the connecting wheel assembly 14 and the first drive wheel 15, two sets of reversing wheels 17 rotatably connected to the worktable 1, and a second belt 18 sleeved between the two sets of connecting wheel assemblies 14 and the reversing wheels 17. The axis of the connecting wheel assembly 14 and the axis of the printing and dyeing roller 5 are on the same straight line, and the second belt 18 is arranged in a figure-eight shape between the two sets of connecting wheel assemblies 14 and the reversing wheels 17.

[0036] Reference Figures 1-3 The drying unit includes a drying device 19 fixedly connected to the workbench 1. Two sets of bidirectional reciprocating screws 20 are symmetrically rotatably connected to the workbench 1. Fixing members 21 are provided between the bidirectional reciprocating screws 20 on both sides. A drying cylinder 22 is fixedly connected to the side of the fixing member 21 that is close to each other. The fixing member 21 is provided with a protrusion that matches the bidirectional reciprocating screw 20. The side of the drying cylinder 22 that is close to each other is conical, and the two sets of drying cylinders 22 are located on the upper and lower sides of the textile fabric, respectively.

[0037] The specific structure of the drying equipment 19 can be referred to the technical solutions in the prior art, which are known to those skilled in the art and will not be elaborated here. It includes the generation of wind and the heating of the wind, which is then transported by pipeline to the drying cylinder 22 to dry the textile fabric. The conical design of the drying cylinder 22 can increase the contact area between the hot air and the textile fabric. On the one hand, it can prevent the accumulation of heat from causing deformation, wrinkles and other problems in the textile fabric. On the other hand, it can improve the utilization rate of hot air, thereby improving the drying efficiency of the textile fabric.

[0038] Reference Figure 2 and Figure 8 It also includes a drive bevel gear 23 rotatably connected to the workbench 1 and connected to the discharge roller 3. A rotating shaft 24 is rotatably connected to the side of the workbench 1 near the drive bevel gear 23. A driven bevel gear 25 that meshes with the drive bevel gear 23 is fixedly connected to the rotating shaft 24. A second drive wheel 26 is fixedly connected to the rotating shaft 24. A driven wheel 27 is fixedly connected to the bidirectional reciprocating screw 20. A third belt 28 is sleeved between the second drive wheel 26 and the driven wheel 27.

[0039] Reference Figures 1-2 The top end of the bidirectional reciprocating screw 20 extends at least partially to the outside of the worktable 1, and the top ends of both sets of bidirectional reciprocating screws 20 are fixedly connected to linkage wheels 29. A fourth belt 30 is sleeved between the two sets of linkage wheels 29 to drive the two sets of bidirectional reciprocating screws 20 to rotate synchronously.

[0040] In this invention, when dyeing textile fabric, the textile fabric is first passed through the feed roller 2, the dyeing roller 5, and the discharge roller 3 in sequence, and finally wound up by the winding device. During this process, the textile fabric is always in close contact with the feed roller 2 and the discharge roller 3. The movement of the winding device can realize the movement of the textile fabric. During the movement, the feed roller 2 and the discharge roller 3 will be driven to rotate. The first drive wheel 15, the first belt 16, the reversing wheel 17, and the second belt 18 drive the two sets of connecting wheel sets 14 to rotate synchronously relative to each other. At the same time, the electric crank 9 and the dyeing roller 5 rotate. The crank 9 will drive the piston 10 to move up and down in the cylinder 8 through the connecting rod 11, intermittently compressing the gas and passing it into the dyeing roller 5 and the air storage box 12. The gas in the air storage box 12 will be sprayed onto the textile fabric through the nozzle 13, thereby cleaning the impurities on the surface of the textile fabric. After the dyeing roller 5 rotates once, gas enters the inside of the dyeing roller 5 through the vent 52, which increases the internal air pressure and drives the limiting cylinder 56 and the movable sealing plate 57 to move towards the inner wall of the dyeing roller 5, compressing the dye and causing the dye to flow to the surface of the dyeing roller 5, so as to facilitate the dyeing of subsequent textile fabrics. The amount of dye discharged each time is the same, which can reduce dye waste while ensuring the dyeing effect of textile fabrics and ensuring the stability of equipment operation. When the dyed textile fabric is moved to the bottom of the drying cylinder 22, the hot air in the drying equipment 19 dries it. According to the rotation speed of the discharge roller 3, the drying cylinder 22 is driven to move up and down along both sides of the textile fabric by the bidirectional reciprocating screw 20. On the one hand, this can prevent the textile fabric from wrinkling due to prolonged contact with high-temperature gas, and on the other hand, it can improve the drying efficiency of the textile fabric, thereby improving the dyeing efficiency of the textile fabric. After drying, the textile fabric can be rolled up. Compared with the existing technology, it is not only simple to operate, but also improves the dyeing efficiency.

[0041] Example 2: A dyeing method for textile fabric dyeing equipment further includes the following steps: Step 1: Pass the textile fabric through the feed roller 2, the dyeing roller 5 and the discharge roller 3 in sequence, and finally roll it up onto the take-up roller. The take-up roller rolls the textile fabric to move between the feed roller 2, the dyeing roller 5 and the discharge roller 3. The movement of the textile fabric between the feed roller 2, the dyeing roller 5 and the discharge roller 3 relies on the rotation of the winding equipment, and the textile fabric is in close contact with the feed roller 2 and the discharge roller 3 during the movement. Step 2: As the textile fabric moves, it drives the feed roller 2 and the discharge roller 3 to rotate, which in turn drives the dyeing roller 5 to rotate on the textile fabric via the drive unit. The drive unit can drive the upper dyeing roller 5 and the discharge roller 3 to rotate in the same direction, and drive the lower dyeing roller 5 to rotate relative to the upper dyeing roller 5, thereby ensuring the dyeing effect of the textile fabric. Step 3: During the rotation of the dyeing roller 5, the compression mechanism intermittently discharges gas into the dyeing roller 5, which increases the air pressure inside the dyeing roller 5 and drives the discharge mechanism to add dye to the surface of the dyeing roller 5. The dyeing roller 5 is sealed inside, and the dye inside will be discharged under pressure. It should be noted that when adding dye, the dye storage space must be filled each time to ensure stable dye discharge. Step 4: At the same time, the gas compressed by the compression mechanism will be sprayed onto the textile fabric by nozzle 13 before the textile fabric is printed and dyed, so as to clean the impurities on the surface of the textile fabric. Because there are many floating objects in the air during the textile fabric processing, which affect the printing and dyeing quality of textile fabrics, it is very necessary to clean the impurities on the surface of textile fabrics before printing and dyeing. Step 5: After the printing and dyeing is completed, the discharge roller 3 will drive the drying unit to move up and down along the textile fabric to dry the textile fabric. Finally, the printed and dyed textile fabric will be rolled up onto the take-up roller. By moving the drying drum 22 up and down along both sides of the textile fabric, the drying effect of the textile fabric can be ensured while avoiding wrinkles and other issues caused by prolonged high temperature.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A textile fabric printing and dyeing equipment, comprising a worktable (1), a feed roller (2), and a discharge roller (3), characterized in that, Also includes: The dyeing unit set on the workbench (1) is used for dyeing textile fabrics. The dyeing and printing unit is equipped with a compression mechanism and a discharge mechanism. When the dyeing and printing unit rotates, the compression mechanism can drive the discharge mechanism to discharge the dye to the surface of the dyeing and printing unit. The drive unit is located between the workbench (1) and the dyeing unit. The discharge roller (3) can drive the dyeing unit to rotate synchronously relative to both sides of the textile fabric through the drive unit. The drying unit is set on the workbench (1), and the discharge roller (3) can drive the drying unit to move back and forth along both sides of the textile fabric. The dyeing unit includes multiple sets of mounting seats (4) symmetrically fixedly connected to the workbench (1). Dyeing rollers (5) are rotatably connected to the side of the mounting seats (4) that are close to each other. Air rings (6) are fixedly connected to the side of the two sets of mounting seats (4) on one side that are close to the axis of the dyeing rollers (5). The distance between the two sets of dyeing rollers (5) is matched with the size of the textile fabric. The air rings (6) are rotatably connected to the shaft end of the dyeing rollers (5). The dyeing rollers (5) are hollow structures. The compression mechanism includes a mounting groove (7) on the mounting base (4), a cylinder (8) is fixedly connected inside the mounting groove (7), a crank (9) connected to the dyeing roller (5) is rotatably connected inside the mounting groove (7), a piston (10) is slidably connected inside the cylinder (8), and a connecting rod (11) is provided between the piston (10) and the crank (9). The crank (9) is connected to the axis of the dyeing roller (5), and the two ends of the connecting rod (11) are rotatably connected to the piston (10) and the crank (9) respectively. The connecting rod (11) and the crank (9) are eccentrically arranged. The material discharge mechanism includes a mounting plate (51) fixedly connected inside the dyeing roller (5). The shaft of the dyeing roller (5) has a vent hole (52) communicating with a slip ring (6). Multiple sets of positioning cylinders (53) are fixedly connected to the mounting plate (51). A fixing rod (54) is slidably connected inside each positioning cylinder (53). A first spring (55) is fixedly connected between the fixing rod (54) and the positioning cylinder (53). A limited... The limiting cylinder (56) has two sets of movable sealing plates (57) symmetrically slidably connected inside. A second spring (58) is fixedly connected between the two sets of movable sealing plates (57). The air slip ring (6) is connected to the cylinder (8) in the corresponding direction through a pipe. The limiting cylinder (56) and the movable sealing plates (57) are both tightly fitted to the inner wall of the dyeing roller (5). The end of the movable sealing plate (57) away from the limiting cylinder (56) is tightly fitted to the inner wall of the dyeing roller (5). It also includes an air storage box (12) that is symmetrically fixedly connected to the mounting base (4) on the side near the feed roller (2). The air storage box (12) is provided with multiple nozzles (13) on the side near the feed roller (2). The air storage box (12) is connected to the cylinder (8) on the side away from the air slip ring (6) through a pipe. The nozzles (13) are located on both sides of the textile fabric and are inclined. The drive unit includes a connecting wheel assembly (14) fixedly connected to the crank (9), a first drive wheel (15) rotatably connected to the discharge roller (3) on the worktable (1), a first belt (16) sleeved between the connecting wheel assembly (14) and the first drive wheel (15) above, two sets of directional pulleys (17) rotatably connected on the worktable (1), and a second belt (18) sleeved between the two sets of connecting wheel assemblies (14) and the directional pulleys (17). The axis of the connecting wheel set (14) is on the same straight line as the axis of the dyeing roller (5), and the second belt (18) is arranged in a figure-eight shape between the two connecting wheel sets (14) and the reversing wheel (17).

2. The textile fabric printing and dyeing equipment according to claim 1, characterized in that, The drying unit includes a drying device (19) fixedly connected to the workbench (1). Two sets of bidirectional reciprocating screws (20) are symmetrically rotated on the workbench (1). Fixing members (21) are provided between the bidirectional reciprocating screws (20) on both sides. A drying cylinder (22) is fixedly connected to the side of the fixing members (21) that is close to each other. The fixing member (21) is provided with a protrusion that matches the bidirectional reciprocating screw (20), the drying cylinders (22) are tapered on the side that are close to each other, and the two sets of drying cylinders (22) are located on the upper and lower sides of the textile fabric respectively.

3. The textile fabric printing and dyeing equipment according to claim 2, characterized in that, It also includes a drive bevel gear (23) rotatably connected to the workbench (1) and connected to the discharge roller (3). A rotating shaft (24) is rotatably connected to the side of the workbench (1) near the drive bevel gear (23). A driven bevel gear (25) meshing with the drive bevel gear (23) is fixedly connected to the rotating shaft (24). A second drive wheel (26) is fixedly connected to the rotating shaft (24). A driven wheel (27) is fixedly connected to the bidirectional reciprocating screw (20). A third belt (28) is sleeved between the second drive wheel (26) and the driven wheel (27).

4. The textile fabric printing and dyeing equipment according to claim 2, characterized in that, The top end of the bidirectional reciprocating screw (20) extends at least partially to the outside of the worktable (1), and the top ends of both sets of bidirectional reciprocating screws (20) are fixedly connected to a linkage wheel (29). A fourth belt (30) is sleeved between the two sets of linkage wheels (29) to drive the two sets of bidirectional reciprocating screws (20) to rotate synchronously.

5. A textile fabric printing and dyeing method comprising the textile fabric printing and dyeing equipment according to any one of claims 1-4, characterized in that, It also includes the following steps: Step 1: Pass the textile fabric through the feed roller (2), the dyeing roller (5) and the discharge roller (3) in sequence, and finally roll it up onto the take-up roller. The textile fabric moves between the feed roller (2), the dyeing roller (5) and the discharge roller (3) by the take-up roller. Step 2: During the movement of the textile fabric, the feed roller (2) and the discharge roller (3) are rotated, and the dyeing roller (5) is driven to rotate on the textile fabric through the drive unit. Step 3: During the rotation of the dyeing roller (5), gas is intermittently discharged into the dyeing roller (5) through the compression mechanism, which increases the air pressure inside the dyeing roller (5) and drives the discharge mechanism to add dye to the surface of the dyeing roller (5). Step 4: At the same time, the gas compressed by the compression mechanism will be sprayed onto the textile fabric by the nozzle (13) before the textile fabric is printed and dyed, so as to clean the impurities on the surface of the textile fabric. Step 5: After the printing and dyeing is completed, the discharge roller (3) will drive the drying unit to move up and down along the textile fabric to dry the textile fabric. Finally, the printed and dyed textile fabric will be rolled up onto the take-up roller.

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