Padder capable of easily controlling mangle expression

Abstract

The padder comprises a first roller and a second roller which are horizontally tangent, a first rolling groove is formed below the first roller, a second rolling groove is formed below the second roller, the bottom of the first roller is located below the liquid level line of the first rolling groove, and the bottom of the second roller is located below the liquid level line of the second rolling groove. The bottom of the second roller is located below the liquid level line of the second rolling groove, the first roller is a driving roller, the second roller is a pressurizing roller, the two shaft ends of the second roller are each provided with a pressurizing device, and the roller face of the first roller and the roller face of the second roller are each coated with a coating layer capable of adsorbing rolling liquid. And a movable pressure adjusting roller is arranged beside each of the first roller and the second roller. The first roller and the second roller are in horizontal tangent belt hydraulic rolling, liquid can be fed to the two faces of fabric at the same time, uniformity is high, the movable pressure adjusting roller can control the liquid carrying rate of the two rollers, low-liquid-carrying transfer rolling of the padder is achieved, the structure is simple, and production efficiency is improved.

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 that is easy to control the rolling liquid ratio. Background Technology

[0002] In the dyeing and finishing process, pad dyeing involves briefly immersing the fabric in padding liquor, followed by pressing it with rollers to force the liquor into the fabric's structure and remove excess liquor, thus ensuring the dye is evenly distributed on the fabric. This involves an important parameter: padding liquor 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 that makes it easy to control the rolling yield.

[0006] The technical solution to achieve the purpose of this utility model is: a rolling mill with easy control of the rolling liquid rate, which includes a first roll and a second roll that are horizontally tangent. A first trough is installed below the first roll, and a second trough is installed below the second roll. The bottom of the first roll is below the liquid level line of the first trough, and the bottom of the second roll is below the liquid level line of the second trough. The first roll is an active 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. The roll surfaces of both the first roll and the second roll are covered with a coating layer that can absorb the rolling liquid. A movable pressure adjusting roll is installed on the side of both the first roll and the second roll.

[0007] Furthermore, the covering layer is a felt sleeve.

[0008] This invention enables the first and second rollers of the rolling mill to be horizontally tangent and hydraulically rolled, allowing for simultaneous liquid application to both sides of the fabric with high uniformity. The movable pressure adjusting roller can control the liquid carrying rate of the two rollers, enabling low-liquid-carrying-rate switching of the rolling mill. Its simple structure improves production efficiency. Attached Figure Description

[0009] Figure 1 This is a simplified structural diagram of the rolling mill with easily controllable roll-off rate according to an embodiment of the present invention, wherein the arrows represent the fabric conveying path. Detailed Implementation

[0010] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0011] like Figure 1 As shown, a rolling mill with easily controllable slurry rate includes a first roll 1 and a second roll 2 that are horizontally tangent. A first trough 3 is installed below the first roll 1, and a second trough 4 is installed below the second roll 2. The bottom 11 of the first roll 1 is located below the liquid level line of the first trough 3, and the bottom 21 of the second roll 2 is located below the liquid level line of the second trough 4. The first roll 1 is an active roll, and the second roll 2 is a pressure roll. A pressure device 5 is installed at each of the two shaft ends of the second roll 2. A coating layer 6 that can absorb slurry is covered on the roll surface of both the first roll 1 and the second roll 2. A movable pressure adjusting roll 7 is installed on the side of both the first roll 1 and the second roll 2.

[0012] Furthermore, the pressurizing device 5 includes a pressurizing swing arm 51 and a pressurizing cylinder 52. The pressurizing cylinder 52 is horizontally mounted on the frame 10. The piston rod 521 of the pressurizing cylinder 52 is perpendicular to the axis of the second rolling mill 2. The piston rod 521 of the pressurizing cylinder 52 is hinged to one end 511 of the pressurizing swing arm 51, and the other end 512 of the pressurizing swing arm 51 is hinged to the frame 10. The shaft end of the second roll 2 is rotatably mounted on the pressurizing swing arm 51.

[0013] During operation, the bottom 11 of the first roller 1 is immersed in the first groove 3, and the bottom 21 of the second roller 2 is immersed in the second groove 4. The fabric 100 passes through the first roller 1 and the second roller 2 from below the rolling mill. The first roller 1 is driven to rotate by a geared motor (not shown), which in turn drives the second roller 2, which is tangential to it, to rotate, thus performing double-sided hydraulic rolling on the fabric 100. The pressure between the first roller and the second roller can also be adjusted by extending and retracting the piston rod 521 of the pressurizing cylinder 52. The movable pressure adjusting roller 7 can adjust the liquid carry-over rate of the two rollers respectively, and the liquid carry-over rate can be controlled between 5-30%, realizing low liquid carry-over rolling of the rolling mill.

[0014] The covering layer of this utility model is not limited to felt sleeves, but can also be made of other materials that can carry liquid, such as an anilox roller; the pressurizing device is not limited to the embodiment shown, but can also be a conventional pressurizing structure in the art, such as airbag pressurization; the structure of the movable pressure adjusting roller is prior art, and its linear displacement can be achieved by conventional linear displacement mechanisms in the mechanical field, such as linear cylinders, which will not be described in detail here.

[0015] 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 rolling mill with easily controllable slurry rate, characterized in that: It includes a first roll and a second roll that are horizontally tangent. A first groove is installed below the first roll and a second groove is installed below the second roll. The bottom of the first roll is below the liquid level line of the first groove and the bottom of the second roll is below the liquid level line of the second groove. 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. The roll surfaces of both the first roll and the second roll are covered with a coating layer that can absorb the rolling liquid. A movable pressure adjusting roll is installed on the side of both the first roll and the second roll.

2. The rolling mill with easily controllable slurry rate according to claim 1, characterized in that: The covering layer is a felt cover.

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