Padder with low mangle expression

Abstract

The utility model discloses a padder with low mangle expression, which comprises a first roller and a second roller which are horizontally tangent, the first roller is a driving roller, and the second roller is a pressure roller; a first extrusion roller is installed on one side of the first roller, a second extrusion roller is installed on one side of the second roller, and the horizontal positions of the first extrusion roller and the second extrusion roller are both lower than the horizontal position of the first roller. A first rolling groove is formed below the first extrusion roller, a second rolling groove is formed below the second extrusion roller, the bottom of the first extrusion roller is located below the liquid level line of the first rolling groove, and the bottom of the second extrusion roller is located below the liquid level line of the second rolling groove; and the roller surfaces of the first roller, the second roller, the first extrusion roller and the second extrusion roller are respectively coated with a circle of coating layer capable of adsorbing mangle liquid. The squeezing rollers with the bottoms immersed in the rolling grooves are used for transferring and rolling mangle onto the rollers, then the first roller and the second roller are horizontally tangent to each other to press the mangle, two faces of fabric can be fed with the mangle at the same time, and mangle uniformity is high.

Description

Technical Field

[0001] This utility model relates to the field of printing and dyeing machinery and equipment, and in particular to a rolling mill with a low rolling liquid ratio. Background Technology

[0002] In the dyeing and finishing process, pad dyeing involves briefly immersing the fabric in dye liquor, followed by pressing it with rollers to force the dye liquor into the fabric's structure and remove excess dye liquor, ensuring the dye is evenly distributed on the fabric. This involves an important parameter: pad-up ratio.

[0003] The liquid pick-up ratio, also known as the liquid carry-over rate or pick-up residue rate, is an important indicator in the textile, dyeing, and related industries, especially in fabric processing. It describes the ratio of the amount of liquid carried away by the fabric to its own weight under specific process conditions (such as roller pressure, speed, and liquid concentration). The specific calculation formula is: Liquid pick-up ratio = (Weight of fabric after pick-up - Weight of fabric before pick-up) / Weight of fabric before pick-up × 100%.

[0004] The liquid carryover rate of the rolling mill has a significant impact on product quality. An excessively high liquid carryover rate may lead to excessive moisture content in the fabric, affecting subsequent drying and dyeing effects, and even causing fabric deformation; an excessively low liquid carryover rate may prevent the fabric from fully absorbing the treatment liquid, affecting the treatment effect, such as insufficient waterproofing and stain resistance. Chinese utility model patent No. 202022280864.7 discloses a low-volume liquid application rolling mill and dyeing equipment, which includes a liquid carryover component, a pressing component, and a doctor blade component. The first material trough in the liquid carryover component is set on the frame, and part of the first liquid-carrying roller is immersed in the first material trough. This structure can reduce the amount of liquid entering the fabric, but it suffers from uneven liquid application. Utility Model Content

[0005] The purpose of this invention is to provide a rolling mill with a low rolling yield.

[0006] The technical solution to achieve the purpose of this utility model is: a rolling mill with low rolling liquid ratio, comprising a first roll and a second roll that are horizontally tangent, the first roll being an active roll and the second roll being a pressure roll, with a pressure device installed at each of the two shaft ends of the second roll; a movable first extrusion roll is installed on the side of the first roll away from the second roll, and a movable second extrusion roll is installed on the side of the second roll away from the first roll, the horizontal positions of the first extrusion roll and the second extrusion roll are both lower than the horizontal position of the first roll, a first trough is installed below the first extrusion roll, and a second trough is installed below the second extrusion roll, the bottom of the first extrusion roll is below the liquid level line of the first trough, and the bottom of the second extrusion roll is below the liquid level line of the second trough; the roll surfaces of the first roll, the second roll, the first extrusion roll, and the second extrusion roll are all covered with a coating layer that can absorb rolling liquid.

[0007] Furthermore, the line connecting the axes of the first extrusion roll and the first rolling mill forms an angle of 45° with the horizontal plane, and the line connecting the axes of the second extrusion roll and the second rolling mill forms an angle of 45° with the horizontal plane.

[0008] Furthermore, the first and second rolling grooves are connected by pipes, and the first or second rolling groove is rotatably mounted on the frame.

[0009] Furthermore, a tilting mechanism is installed below the second rolling groove. The tilting mechanism includes a tilting cylinder, which is hinged to the frame. A push rod is coaxially mounted at the end of the piston rod of the tilting cylinder. The push rod is hinged to the second rolling groove, and the second rolling groove is hinged to the frame.

[0010] The rolling mill of this invention utilizes an extrusion roller with its bottom immersed in the rolling groove to transfer the rolling liquid onto the roller. Then, the first and second rollers are horizontally tangential and hydraulically rolled, which can simultaneously apply liquid to both sides of the fabric, resulting in high uniformity of the rolling liquid. By adjusting the distance between the extrusion roller and the roller, the liquid carrying rate of the two rollers can be controlled, achieving low liquid carrying rate rolling of the rolling mill and improving production efficiency. Attached Figure Description

[0011] Figure 1 This is a simplified structural diagram of the low-rolling-fluid-rate rolling mill described in an embodiment of the present invention, wherein the arrows represent the fabric conveying path. Detailed Implementation

[0012] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0013] like Figure 1As shown, a low-squeeze-rate rolling mill includes a first roll 1 and a second roll 2 that are horizontally tangent. The first roll 1 is a drive roll, and the second roll 2 is a pressure roll. A pressure device 3 is installed at each of the two shaft ends of the second roll 2. A movable first extrusion roll 4 is installed on the side of the first roll 1 away from the second roll 2, and a movable second extrusion roll 5 is installed on the side of the second roll 2 away from the first roll 1. A first groove 6 is installed below the first extrusion roll 4, and a second groove 7 is installed below the second extrusion roll 5. The bottom of the first extrusion roll 4 is below the liquid level line of the first groove 6, and the bottom of the second extrusion roll 5 is below the liquid level line of the second groove 7. The roll surfaces of the first roll 1, the second roll 2, the first extrusion roll 4, and the second extrusion roll 4 are all covered with a coating layer 8 that can absorb the rolling liquid.

[0014] Furthermore, the horizontal positions of the first extrusion roller 4 and the second extrusion roller 5 are both lower than the horizontal position of the first roller 1, and the angle A between the line connecting the axes of the first extrusion roller 4 and the first roller 1 and the horizontal plane is 45°, and the angle B between the line connecting the axes of the second extrusion roller 5 and the second roller 5 and the horizontal plane is 45°.

[0015] Furthermore, the first rolling groove 6 and the second rolling groove 7 are connected by pipes. A flipping mechanism 9 is installed below the second rolling groove 7. The flipping mechanism 9 includes a flipping cylinder 91. One end 911 of the flipping cylinder 91 is hinged to the frame 10. A push rod 92 is coaxially installed at the end of the piston rod 912 of the flipping cylinder 91. The push rod 92 is hinged to the second rolling groove 7. The upper end 71 of the second rolling groove 7 is hinged to the frame 10.

[0016] Furthermore, the pressurizing device 3 includes a pressurizing swing arm 31 and a pressurizing cylinder 32. The pressurizing cylinder 32 is mounted on the frame 10. The piston rod 321 of the pressurizing cylinder 32 is hinged to one end 311 of the pressurizing swing arm 31, and the other end 312 of the pressurizing swing arm 31 is hinged to the frame 10. The shaft end of the second roller 2 is rotatably mounted on the pressurizing swing arm 31.

[0017] During operation, the fabric 100 passes from bottom to top between the first groove 6 and the second groove 7 and then between the first roller 1 and the second roller 2. The bottom of the first extrusion roller 4 is immersed in the first groove 6, and the bottom of the second extrusion roller 5 is immersed in the second groove 7. The covering layer 8 on the first extrusion roller 4 absorbs the extrusion liquid and then transfers the extrusion liquid to the covering layer 8 of the first roller 1, which is tangent to it. The covering layer 8 on the second extrusion roller 5 absorbs the extrusion liquid and then transfers the extrusion liquid to the covering layer 8 of the second roller 2, which is tangent to it. The first roller 1 and the second roller 2 are tangent to each other, and the extrusion liquid is applied to both sides of the fabric 100 at the same time, resulting in high uniformity of extrusion liquid application.

[0018] When discharging the rolling liquid, the tilting cylinder 91 is activated. The piston rod 912 of the tilting cylinder 91 retracts, causing the second rolling groove 7 to tilt downward relative to the horizontal surface. Since the first rolling groove 6 and the second rolling groove 2 are connected by a pipeline, the rolling liquid in the first rolling groove 6 is discharged into the second rolling groove 7 through the pipeline and then discharged by tilting through the second rolling groove 7.

[0019] The coating layer described in this invention is not limited to felt sleeves, but can also be made of other materials that can carry liquid, such as anilox rollers.

[0020] The pressurization device is not limited to the embodiment shown, and can also be a conventional pressurization structure in the art, such as airbag pressurization.

[0021] The extrusion roller structure is existing technology. The linear displacement of the extrusion roller relative to its adjacent roller can be achieved by conventional linear motion mechanisms in the mechanical field, such as linear cylinders, which will not be elaborated here.

[0022] The angle between the line connecting the axis of the first extrusion roller and the axis of the first rolling mill and the horizontal plane, and the angle between the line connecting the axis of the second extrusion roller and the axis of the second rolling mill and the horizontal plane are not limited to 45°. The horizontal positions of the first extrusion roller and the second extrusion roller are both lower than the horizontal position of the first rolling mill, which can form the installation position of the rolling groove. The 45° angle makes the installation position of the rolling groove the most compact.

[0023] The first and second rolling troughs can discharge rolling liquid through the outlet, and the first or second rolling trough can be flipped to increase the discharge speed of rolling liquid.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, 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 low liquor rate mill with the features of: It includes a first roll and a second roll that are horizontally tangent. The first roll is a drive roll, and the second roll is a pressure roll. A pressure device is installed at each of the two shaft ends of the second roll. A movable first extrusion roll is installed on the side of the first roll away from the second roll, and a movable second extrusion roll is installed on the side of the second roll away from the first roll. The horizontal positions of the first extrusion roll and the second extrusion roll are both lower than the horizontal position of the first roll. A first trough is installed below the first extrusion roll, and a second trough is installed below the second extrusion roll. The bottom of the first extrusion roll is below the liquid level line of the first trough, and the bottom of the second extrusion roll is below the liquid level line of the second trough. The roll surfaces of the first roll, the second roll, the first extrusion roll, and the second extrusion roll are all covered with a coating layer that can absorb the rolling liquid.

2. The rolling mill with low slick rate according to claim 1, characterized in that: The line connecting the axis of the first extrusion roll and the axis of the first rolling mill forms an angle of 45° with the horizontal plane, and the line connecting the axis of the second extrusion roll and the axis of the second rolling mill forms an angle of 45° with the horizontal plane.

3. The rolling mill with low slick rate according to claim 2, characterized in that: The first and second rolling grooves are connected by pipes, and the first or second rolling groove is rotatably mounted on the frame.

4. The rolling mill with low slick rate according to claim 3, characterized in that: A tilting mechanism is installed below the second rolling groove. The tilting mechanism includes a tilting cylinder, which is hinged to the frame. A push rod is coaxially mounted at the end of the piston rod of the tilting cylinder. The push rod is hinged to the second rolling groove, and the second rolling groove is hinged to the frame.

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