Dyeing vat with roller lifting device for a padding machine

Abstract

The utility model discloses a dyeing vat with roller lifting device for pulp dyeing machine, including the cylinder body, the upper end of cylinder body is connected with the sealing cover through bolt, the upper side of cylinder body's inside is equipped with roller no.

Description

Technical Field

[0001] This utility model relates to the field of dyeing equipment technology, specifically a dyeing vat for a sizing and dyeing machine with a roller lifting device. Background Technology

[0002] A dyeing vat with a roller lifting device is a specialized piece of equipment in the fabric dyeing process. The roller is a stainless steel roller that, driven by a drive unit, makes a slow, continuous vertical reciprocating motion within the dyeing vat. During this movement, the roller continuously stretches or relaxes the fabric. This periodic relaxation and tensioning process compresses and releases the fabric immersed in the dye liquor, greatly promoting the penetration and exchange of the dye liquor within the fabric and between fabric bundles. (Existing technology: Authorization Publication No. CN 212640901) U's patent discloses a dyeing cylinder for a sizing and dyeing machine with a roller lifting device, including a dyeing cylinder body, an upper roller, a lower roller, and a lifting device. The two ends of the lower roller are mounted on the inner wall of the dyeing cylinder body through a first bearing structure, and the two ends of the upper roller are mounted on the inner wall of the dyeing cylinder body through a second bearing structure. The inner wall of the dyeing cylinder body has an installation groove. During use, although the upper roller can be moved by two sets of electric push rods, even if the two electric push rods are exactly the same model, their mechanical wear and motor characteristics will have slight differences. This will cause one end to move faster and the other slower during operation, making it impossible to guarantee absolute synchronous lifting and lowering. As a result, the upper roller may tilt or jam, or generate huge lateral stress on the guide rail, leading to abnormal wear or even damage to the guide rail and slider. Once the upper roller tilts, the yarn on it will slide to one side, causing yarn entanglement, accumulation, and uneven tension, ultimately leading to uneven dyeing or even yarn breakage and production stoppage. Therefore, we propose a dyeing cylinder for a sizing and dyeing machine with a roller lifting device. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a dyeing cylinder for a sizing and dyeing machine with a roller lifting device. Through the cooperation of the connecting groove and guide groove with the push rod, it can simultaneously drive four sets of rollers to perform vertical reciprocating motion. The four sets of rollers move along the same trajectory, replacing the traditional method of using two sets of electric push rods to drive the rollers. This improves the stability of the rollers during movement, ensures the dyeing quality of the fabric, and effectively solves the problems in the background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a dyeing cylinder for a sizing and dyeing machine with a roller lifting device, comprising a cylinder body, a sealing cover connected to the upper end of the cylinder body by bolts, roller one respectively provided on the upper side of the cylinder body, roller two respectively rotatably connected to the lower side of the cylinder body, and a lifting mechanism;

[0005] Lifting mechanism: It includes a protective cover, a rotating cylinder, a connecting groove, a guide groove, and a push rod. The protective cover is located in the middle of the upper end of the sealing cover. The rotating cylinder is rotatably connected to the middle of the top wall of the protective cover. The front and rear sides and the left and right sides of the outer arc surface of the rotating cylinder are respectively provided with connecting grooves and guide grooves. The two sets of guide grooves are connected to each other through the connecting grooves. Each connecting groove is equipped with a push rod. Through the cooperation of the connecting grooves, guide grooves, and push rods, four sets of rollers can be driven to perform vertical reciprocating motion simultaneously. The four sets of rollers move along the same trajectory, which replaces the traditional method of driving rollers to move by two sets of electric push rods. This improves the stability of rollers during movement and ensures the dyeing quality of the fabric.

[0006] Furthermore, a controller is provided at the front end of the cylinder body. The input end of the controller is electrically connected to an external power source, which can regulate the electrical components inside the equipment.

[0007] Furthermore, the lifting mechanism also includes a drive rod, a transmission rod, a fixed plate, and a rubber sealing ring. The rubber sealing ring is located in the middle of the upper end of the sealing cover. The drive rod is slidably connected inside the rubber sealing ring. Push rods are respectively provided on the front and rear sides of the outer arc surface of the drive rod. The lower end of the drive rod is connected to the transmission rod by screws. The lower end of the transmission rod is provided with a fixed plate, which can drive the roller to move.

[0008] Furthermore, the upper sides of both the left and right walls of the cylinder are provided with a feed inlet and a discharge outlet. The left and right sides inside the cylinder are respectively rotatably connected to guide roller one and guide roller two. Guide roller one corresponds to the left and right positions of the feed inlet, and guide roller two corresponds to the left and right positions of the discharge outlet. Guide roller one is located between the left end of the leftmost roller two and the left wall of the cylinder, and guide roller two is located between the right end of the rightmost roller two and the right wall of the cylinder, which can guide the fabric to move.

[0009] Furthermore, each of the upper mounting slots on the front and rear walls of the cylinder is equipped with a fixing rod. The four longitudinally adjacent fixing rods are slidably connected to the sliding holes corresponding to the lower end of a mounting bracket. Rollers 1 are rotatably connected to the upper side of each of the four mounting brackets. Rollers 1 are located below the feed inlet and discharge outlet. Rollers 1 are located between the outer arc surfaces of two laterally adjacent rollers 2. The front and rear sides of the two laterally adjacent mounting brackets are fixedly connected by connecting rods. The outer arc surfaces of the two connecting rods in the middle are fixedly connected to the front and rear ends of the fixing plate, which can drive rollers 1 to move.

[0010] Furthermore, a worm gear is provided on the upper side of the outer arc surface of the rotating cylinder, a servo motor is provided on the upper side of the right end of the protective cover, a worm is provided on the left end of the output shaft of the servo motor, the worm is rotatably connected to the worm gear, and the input end of the servo motor is electrically connected to the output end of the controller, which can drive the rotating cylinder to rotate.

[0011] Furthermore, an electric heating wire is installed in the cavity on the lower side of the cylinder body. The input end of the electric heating wire is electrically connected to the output end of the controller, which can heat the dye.

[0012] Furthermore, temperature detectors are installed on the lower sides of both the left and right ends of the cylinder. The probes of the two sets of temperature detectors, located in the middle of their inner ends, are both inside the cylinder. The temperature detectors are bidirectionally electrically connected to the controller and can detect the temperature of the dye.

[0013] Furthermore, exhaust pipes are installed in the exhaust ports on both the left and right sides of the upper end of the sealing cover, allowing the water vapor generated during the heating process to be discharged through the exhaust pipes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This dyeing vat for a sizing and dyeing machine with a roller lifting device has the following advantages:

[0015] By using the connecting groove and guide groove in conjunction with the push rod, four sets of rollers can be driven to perform vertical reciprocating motion simultaneously. The four sets of rollers move along the same trajectory, which replaces the traditional method of using two sets of electric push rods to drive the rollers. This improves the stability of the rollers during movement and ensures the dyeing quality of the fabric. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the upper sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lower sectional structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the rear sectional structure of the present invention;

[0020] Figure 5 This is a schematic diagram of the internal structure of the protective cover of this utility model;

[0021] Figure 6 This is a partial structural schematic diagram of the lifting mechanism of this utility model;

[0022] Figure 7 This is a schematic diagram of the rotating cylinder of this utility model.

[0023] In the diagram: 1. Cylinder body, 2. Controller, 3. Sealing cover, 4. Inlet, 5. Outlet, 6. Lifting mechanism, 61. Protective cover, 62. Rotating cylinder, 63. Connecting groove, 64. Guide groove, 65. Drive rod, 66. Push rod, 67. Transmission rod, 68. Fixing plate, 69. Rubber sealing ring, 7. Fixing rod, 8. Mounting bracket, 9. Connecting rod, 10. Roller 1, 11. Roller 2, 12. Guide roller 1, 13. Guide roller 2, 14. Electric heating wire, 15. Worm gear, 16. Servo motor, 17. Worm wheel, 18. Temperature detector, 19. Exhaust pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-7 This embodiment provides a technical solution: a dyeing cylinder for a sizing and dyeing machine with a roller lifting device, including a cylinder body 1, a sealing cover 3 connected to the upper end of the cylinder body 1 by bolts, roller 10 respectively provided on the upper side inside the cylinder body 1, roller 2 11 respectively rotatably connected to the lower side inside the cylinder body 1, and also includes a lifting mechanism 6.

[0026] Lifting mechanism 6 includes a protective cover 61, a rotating cylinder 62, a connecting groove 63, a guide groove 64, and a push rod 66. The protective cover 61 is located in the middle of the upper end of the sealing cover 3. The rotating cylinder 62 is rotatably connected to the middle of the top wall of the protective cover 61. The front and rear sides and the left and right sides of the outer arc surface of the rotating cylinder 62 are respectively provided with connecting grooves 63 and guide grooves 64. The two sets of guide grooves 64 are connected to each other through the connecting grooves 63. A push rod 66 is provided inside each connecting groove 63. The connecting groove 63 and the guide groove 64 are inclined surfaces, and the inclination of the guide groove 63 is greater than that of the guide groove 64. During the rotation of the rotating cylinder 62, the push rod 66 will slide and move inside the connecting groove 63. The rotating cylinder 62 rotates relative to the connecting groove 63, thereby driving the push rod 66 to move downward through the connecting groove 63. When the push rod 66 enters the guide groove 64 through the connecting groove 63, the guide groove 64 will drive the push rod 66 to move upward, thereby driving the push rod 66 to perform vertical reciprocating motion. Through the cooperation of the connecting groove 63, the guide groove 64 and the push rod 66, four sets of rollers 10 can be driven to perform vertical reciprocating motion simultaneously. The four sets of rollers 10 have the same movement trajectory, which replaces the traditional method of driving the rollers 10 to move through two sets of electric push rods. This improves the stability of the rollers 10 during movement and ensures the dyeing quality of the fabric.

[0027] Among them, the front end of the cylinder 1 is equipped with a controller 2, the input end of the controller 2 is electrically connected to an external power supply, and can regulate the electrical components inside the equipment.

[0028] The lifting mechanism 6 includes a drive rod 65, a transmission rod 67, a fixing plate 68, and a rubber sealing ring 69. The rubber sealing ring 69 is located in the middle of the upper end of the sealing cover 3. The drive rod 65 is slidably connected inside the rubber sealing ring 69. Push rods 66 are respectively provided on the front and rear sides of the outer arc surface of the drive rod 65. The lower end of the drive rod 65 is connected to the transmission rod 67 by screws. The lower end of the transmission rod 67 is provided with the fixing plate 68. During the movement of the push rod 66, the transmission rod 67 will be moved by the drive rod 65. The transmission rod 67 will be moved by the roller 10 by the fixing plate 68. The rubber sealing ring 69 can prevent subsequent water vapor from entering the interior of the protective cover 61. The rubber sealing ring 69 is made of fluororubber and can withstand a high temperature of 230°C.

[0029] The cylinder body 1 has a feed inlet 4 and a discharge outlet 5 on the upper sides of both its left and right walls. Inside the cylinder body 1, guide roller 12 and guide roller 2 13 are rotatably connected to the left and right sides respectively. Guide roller 12 corresponds to the left and right positions of the feed inlet 4, and guide roller 2 13 corresponds to the left and right positions of the discharge outlet 5. Guide roller 12 is located between the left end of the leftmost roller 2 11 and the left wall of the cylinder body 1, and guide roller 2 13 is located between the right end of the rightmost roller 2 11 and the right wall of the cylinder body 1. Before use, the outer take-up shaft release section needs to be dyed. The fabric is fed through the external conveyor rollers and then into the cylinder 1 through the feed port 4. The fabric then contacts the upper side of the outer arc surface of the leftmost guide roller 12, and then passes the lower side of the outer arc surface of the leftmost roller 2 11 and the upper side of the outer arc surface of roller 10. Following this sequence, the fabric passes through the right roller 10 and roller 2 11, and then contacts the upper side of the outer arc surface of the guide roller 2 13. Finally, the fabric is fed out through the discharge port 5 and then wound around the external winding device.

[0030] In this configuration: Fixing rods 7 are installed in the mounting grooves on the upper sides of the front and rear walls of cylinder 1. Four longitudinally adjacent sets of fixing rods 7 are slidably connected to sliding holes corresponding to the lower ends of mounting brackets 8. Rollers 10 are rotatably connected to the upper sides of the interior of each of the four mounting brackets 8. All four rollers 10 are located below the feed inlet 4 and discharge outlet 5. Rollers 10 are located between the outer arc surfaces of two laterally adjacent sets of rollers 11. The front and rear sides of the two laterally adjacent sets of mounting brackets 8 are fixedly connected by connecting rods 9. The outer arc surfaces of the two middle sets of connecting rods 9 are fixedly connected to the front and rear ends of a fixing plate 68. During movement, push rod 66 drives transmission rod 67 via drive rod 65. Transmission rod 67 drives the middle connecting rod 9 via fixing plate 68. The middle connecting rod 9 drives the middle mounting bracket 8. The middle mounting bracket 8 drives the left and right mounting brackets 8 via the connecting rods 9 on both sides. During movement, the mounting bracket 8 drives rollers 10.

[0031] The rotating cylinder 62 has a worm gear 17 on its upper outer arc surface and a servo motor 16 on its upper right side of the protective cover 61. The worm 15 is located on the left end of the output shaft of the servo motor 16 and is rotatably connected to the worm gear 17. The input end of the servo motor 16 is electrically connected to the output end of the controller 2. The servo motor 16 starts to run under the control of the controller 2. The output shaft of the servo motor 16 drives the worm 15 to rotate. During the rotation, the worm 15 drives the worm gear 17 to rotate through meshing. During the rotation, the worm gear 17 drives the rotating cylinder 62 to rotate. The worm 15 and the worm gear 17 are located inside the sealed protective cover 61. The sealed protective cover 61 can prevent the worm 15 and the worm gear 17 from direct contact with the external environment.

[0032] Wherein: an electric heating wire 14 is installed in the cavity opened on the lower side inside the cylinder 1. The input end of the electric heating wire 14 is electrically connected to the output end of the controller 2. The electric heating wire 14 starts to run through the control of the controller 2. The electric heating wire 14 heats the dye through the inner wall of the cylinder 1. The electric heating wire 14 is made of iron-chromium-aluminum alloy, which has a high resistivity and can heat up quickly after being energized.

[0033] Temperature detectors 18 are installed on the lower sides of both ends of the cylinder 1. The probes of the two sets of temperature detectors 18 are located inside the cylinder 1 and are bidirectionally electrically connected to the controller 2. During the heating process of the dye by the heating wire 14, the two sets of temperature detectors 18 collect the temperature signal of the dye through the resistance temperature sensor. The resistance temperature sensor converts the temperature change into the resistance value change. Then, the temperature detectors 18 convert the resistance value into the temperature value through the built-in algorithm. After that, the data calculated by the temperature detectors 18 is transmitted to the controller 2.

[0034] Among them, exhaust pipes 19 are provided in the exhaust ports on the left and right sides of the upper end of the sealing cover 3, and the water vapor generated during the heating process can be discharged through the exhaust pipes 19.

[0035] The working principle of the dyeing cylinder for a sizing and dyeing machine with a roller lifting device provided by this utility model is as follows: Before use, the external take-up shaft releases part of the fabric to be dyed. Then, after the fabric passes through the external conveying roller, it is fed into the cylinder 1 through the feed port 4. The fabric then contacts the upper side of the outer arc surface of the left guide roller 12, then passes the lower side of the outer arc surface of the leftmost roller 2 11 and the upper side of the outer arc surface of the leftmost roller 10. Following this sequence, the fabric passes through the right roller 10 and roller 2 11, then contacts the upper side of the outer arc surface of the guide roller 2 13. Finally, the fabric is fed out through the discharge port 5, and subsequently wound around the external take-up device. The thickness of the feed port 4 and the discharge port 5 is very small. Slightly larger than the thickness and width of the fabric, the sealing cover 3 is then connected to the cylinder body 1 by bolts. An inspection door is hinged to the inspection port on the upper right side of the sealing cover 3. The operator opens the inspection door and connects the drive rod 65 to the drive rod 67 with screws. Then, under the control of the controller 2, the servo motor 16 starts running. The output shaft of the servo motor 16 drives the worm gear 15 to rotate. During rotation, the worm gear 15 drives the worm wheel 17 to rotate through a meshing connection. The worm wheel 17, in turn, drives the rotating cylinder 62 to rotate. The worm gear 15 and worm wheel 17 are located inside a sealed protective cover 61, which prevents direct contact between the worm gear 15 and worm wheel 17 and the external environment. A rubber sealing ring 69 is also present. To prevent subsequent water vapor from entering the interior of the protective cover 61, the rubber sealing ring 69 is made of fluororubber and can withstand a high temperature of 230℃. The connecting groove 63 and the guide groove 64 are inclined surfaces, with the inclination of the guide groove 63 being greater than that of the guide groove 64. During the rotation of the rotating cylinder 62, the push rod 66 slides inside the connecting groove 63 and rotates relative to it, causing the rotating cylinder 62 to drive the push rod 66 downwards via the connecting groove 63. When the push rod 66 enters the guide groove 64 through the connecting groove 63, the guide groove 64 drives the push rod 66 upwards, thus causing the push rod 66 to perform a vertical reciprocating motion. The upward speed of the push rod 66 is slower than its downward speed. During this movement, the push rod 66... The moving rod 65 drives the transmission rod 67 to move. The transmission rod 67, through the fixed plate 68, drives the middle connecting rod 9 to move. The middle connecting rod 9 then drives the middle mounting frame 8 to move. The middle mounting frame 8, through the connecting rods 9 on both sides, drives the left and right mounting frames 8 to move. During the movement of the mounting frames 8, the roller 10 moves. During the movement of the roller 10, the operator uses a laser rangefinder or other detection equipment to detect the movement distance of the roller 10. Then, based on the movement trajectory of the roller 10, when the roller 10 moves to the top, the servo motor 16 stops running through the control of the controller 2. Then, the external winding equipment adjusts the fabric tension through the internal tension adjustment component.This puts the fabric in a taut state. After adjustment, the operator pours the dye needed for dyeing the fabric into the cylinder 1 through the inspection port. Since the capacity of the cylinder 1 is fixed, the operator needs to record the amount of dye added during the dyeing process. The operator then uses the record to determine the remaining space inside the cylinder 1 and controls the amount of dye added according to the actual situation. The dye level needs to submerge roller 10, but not exceed the inlet 4 and outlet 5. After the dye is added, the inspection door is closed. The locking method when the inspection door is closed adopts the common technology of connecting the door lock and the sealing cover 3. Then, the exhaust valve connected in series on the upper side of the exhaust pipe 19 is opened. Then, through the control of the controller 2, the electric heating wire 14 starts to operate. The electric heating wire 14 heats the dye through the inner wall of the cylinder 1. The electric heating wire 14 is made of iron-chromium-aluminum alloy, which has a high resistivity and can heat up rapidly after being energized. Before heating begins, the operator can apply a layer of polyurethane to the outer surface of the cylinder 1. The polyurethane not only provides insulation but also prevents burns to the operator from excessively high temperatures on the outer surface of the cylinder 1. During the heating process, two sets of temperature detectors 18 collect the dye's temperature signal through resistance temperature sensors. The resistance temperature sensors convert temperature changes into resistance changes, and then the temperature detectors 18 convert the resistance value back into a temperature value using a built-in algorithm. The data calculated by the temperature detectors 18 is then transmitted to the controller 2, which then... The controller 2 takes an intermediate value from the data provided by the two sets of temperature detectors 18. This intermediate value is the temperature of the dye. The operator then adjusts the dye temperature according to the type of dye and the fiber material of the fabric. For example, cellulose fibers such as cotton, linen, and viscose typically undergo adsorption at 60℃ and color-fixing reaction at 80℃-85℃. Once the dye is heated to the specified temperature, the servo motor 16 starts running under the control of the controller 2. The output shaft of the servo motor 16 drives the worm gear 15 to rotate. During rotation, the worm gear 15 drives the worm wheel 17 to rotate through a meshing connection. The worm wheel 17 drives the rotating cylinder 62 to rotate. During rotation, the rotating cylinder 62 drives the push rod 66 through the connecting groove 63 and the guide groove 64. The vertical reciprocating motion is achieved by push rod 66, which drives roller 10 to reciprocate vertically via transmission rod. When roller 10 moves downward, the fabric becomes looser, temporarily reducing its tension. When roller 10 moves upward to its reset position, it straightens the loose fabric, increasing its tension. This periodic relaxation and tensioning process compresses and releases the fabric immersed in the dye solution, greatly promoting the penetration and exchange of the dye solution within the fabric and between fabric bundles. Simultaneously, an external drive motor rotates the unwinding and winding devices. The unwinding shaft continuously releases the fabric, while the winding shaft winds up the dyed fabric. The rotation speeds of the unwinding and winding devices are approximately the same and relatively slow.Typically, the rotation speed is a few to tens of revolutions per minute, but the specific speed depends on the type of fabric, roll density, and process requirements.

[0036] It is worth noting that the controller 2 disclosed in the above embodiments can be an ATmega328P, the servo motor 16 can be an ECMA-C20604RS, and the temperature detector 18 can be an OHR-E700. The controller 2 controls the operation of the electric heating wire 14, the servo motor 16 and the temperature detector 18 using methods commonly used in the prior art.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dyeing cylinder for a sizing and dyeing machine with a roller lifting device, comprising a cylinder body (1), a sealing cover (3) connected to the upper end of the cylinder body (1) by bolts, roller one (10) respectively provided on the upper side inside the cylinder body (1), and roller two (11) respectively rotatably connected to the lower side inside the cylinder body (1), characterized in that: It also includes the lifting mechanism (6); Lifting mechanism (6): It includes a protective cover (61), a rotating cylinder (62), a connecting groove (63), a guide groove (64), and a push rod (66). The protective cover (61) is located in the middle of the upper end of the sealing cover (3). The rotating cylinder (62) is rotatably connected to the middle of the top wall of the protective cover (61). The front and rear sides and the left and right sides of the outer arc surface of the rotating cylinder (62) are respectively provided with connecting grooves (63) and guide grooves (64). The two sets of guide grooves (64) are connected to each other through the connecting grooves (63). The interior of the connecting grooves (63) is provided with push rods (66).

2. The dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 1, characterized in that: The front end of the cylinder (1) is provided with a controller (2), and the input end of the controller (2) is electrically connected to an external power source.

3. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 1, characterized in that: The lifting mechanism (6) also includes a drive rod (65), a transmission rod (67), a fixing plate (68), and a rubber sealing ring (69). The rubber sealing ring (69) is located in the middle of the upper end of the sealing cover (3). The drive rod (65) is slidably connected inside the rubber sealing ring (69). Push rods (66) are respectively provided on the front and rear sides of the outer arc surface of the drive rod (65). The lower end of the drive rod (65) is connected to the transmission rod (67) by screws. The lower end of the transmission rod (67) is provided with a fixing plate (68).

4. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 3, characterized in that: The upper sides of the left and right walls of the cylinder (1) are provided with a feed inlet (4) and a discharge outlet (5). The left and right sides inside the cylinder (1) are respectively connected to a guide roller one (12) and a guide roller two (13). The guide roller one (12) corresponds to the left and right positions of the feed inlet (4), and the guide roller two (13) corresponds to the left and right positions of the discharge outlet (5). The guide roller one (12) is located between the left end of the leftmost roller two (11) and the left wall of the cylinder (1), and the guide roller two (13) is located between the right end of the rightmost roller two (11) and the right wall of the cylinder (1).

5. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 4, characterized in that: The cylinder body (1) has mounting slots on the upper sides of the front and rear walls, each equipped with a fixing rod (7). The four sets of longitudinally adjacent fixing rods (7) are slidably connected to the sliding holes corresponding to the lower ends of a mounting bracket (8). The upper sides of the four sets of mounting brackets (8) are rotatably connected with rollers (10). The four sets of rollers (10) are located on the lower side of the feed inlet (4) and the discharge outlet (5). The rollers (10) are located between the outer arc surfaces of two sets of horizontally adjacent rollers (11). The front and rear sides of the two sets of horizontally adjacent mounting brackets (8) are fixedly connected by connecting rods (9). The outer arc surfaces of the two sets of connecting rods (9) in the middle are fixedly connected to the front and rear ends of the fixing plate (68).

6. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 2, characterized in that: A worm gear (17) is provided on the upper side of the outer arc surface of the rotating cylinder (62), a servo motor (16) is provided on the upper side of the right end of the protective cover (61), a worm (15) is provided on the left end of the output shaft of the servo motor (16), the worm (15) is rotatably connected to the worm gear (17), and the input end of the servo motor (16) is electrically connected to the output end of the controller (2).

7. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 2, characterized in that: An electric heating wire (14) is installed in the cavity on the lower side of the cylinder (1), and the input end of the electric heating wire (14) is electrically connected to the output end of the controller (2).

8. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 2, characterized in that: Temperature detectors (18) are installed on the lower sides of both the left and right ends of the cylinder (1). The probes of the two sets of temperature detectors (18) are located inside the cylinder (1) at the middle of their inner ends. The temperature detectors (18) are bidirectionally electrically connected to the controller (2).

9. A dyeing vat for a sizing and dyeing machine with a roller lifting device according to claim 1, characterized in that: Exhaust pipes (19) are installed in the exhaust ports on the left and right sides of the upper end of the sealing cap (3).

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