A low liquid-carrying-rate flat-width rolling mill

Abstract

This utility model discloses a low-liquid-rate flat-width rolling mill, comprising a first and second roll horizontally tangentially connected. A rotatable third roll is tangentially mounted on the side of the first roll, with its horizontal position lower than that of the first roll, and its bottom immersed in a first liquid-pressing trough. A rotatable fourth roll is tangentially mounted on the side of the second roll, with its horizontal position lower than that of the second roll, and its bottom immersed in a second liquid-pressing trough. The roll surfaces of the third and fourth rolls are each covered with a first liquid-absorbing medium layer, and the roll surfaces of the first and second rolls are each covered with a second liquid-absorbing medium layer. Movable extrusion rolls are mounted on the sides of the third and fourth rolls, respectively. Its structure is simple, and the moisture content of both the first and second liquid-absorbing medium layers tangentially connected to them can be controlled. Therefore, when the first and second rolls are bonded to the fabric during rolling, it is easier to achieve a very low moisture content.

Description

Technical Field

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

[0002] Liquid carry-over rate refers to the percentage of liquid weight carried by the fabric after padding to the dry weight of the fabric. The liquid carry-over rate has a significant impact on product quality: it affects the amount of dye applied, and uneven application can lead to color differences; an excessively high liquid carry-over rate may result in excessive moisture content in the fabric, affecting subsequent drying and dyeing effects, and increasing drying energy consumption; an excessively low liquid carry-over rate may prevent the fabric from fully absorbing the treatment liquid, affecting the treatment effect, such as insufficient waterproofing and stain resistance.

[0003] Chinese utility model patent No. 202022280864.7 discloses a low-volume liquid application rolling mill and dyeing equipment, which includes a liquid-carrying component, a pressing component, and a doctor blade component. The first material trough in the liquid-carrying component is disposed on the frame, and part of the first liquid-carrying roller is immersed in the first material trough. This structure has a certain effect in reducing the amount of liquid entering the fabric, but the liquid carryover rate still has room for adjustment, and the structure also has the defect of uneven liquid application. Utility Model Content

[0004] The purpose of this invention is to provide a flat-width rolling mill with low liquid carryover rate.

[0005] The technical solution to achieve the purpose of this utility model is: a low liquid-carrying-rate flat-width rolling mill, comprising a first roll and a second roll that are horizontally tangent to each other, the first roll or the second roll being a pressure roll; a rotatable third roll is tangentially mounted on the side of the first roll, the horizontal position of the third roll being lower than the horizontal position of the first roll, and the bottom of the third roll being immersed in a first liquid-carrying tank; a rotatable fourth roll is tangentially mounted on the side of the second roll, the horizontal position of the fourth roll being lower than the horizontal position of the second roll, and the bottom of the fourth roll being immersed in a second liquid-carrying tank; the roll surfaces of the third roll and the fourth roll are respectively covered with a first liquid-absorbing medium layer, the roll surfaces of the first roll and the second roll are respectively covered with a second liquid-absorbing medium layer, and movable extrusion rolls are respectively mounted on the side of the third roll and the side of the fourth roll.

[0006] Furthermore, the third roll is located directly below the first roll, and the fourth roll is located directly below the second roll. This results in the most compact installation structure.

[0007] Compared with the conventional structure where a single roll is immersed in the trough, the low liquid-carrying flat-width rolling mill achieved by this invention provides more uniform double-sided rolling. Furthermore, the liquid in the first and second troughs undergoes two media exchanges, resulting in a lower liquid-carrying rate for the first and second rolls. Simultaneously, by controlling the extrusion rolls to press the third and fourth rolls respectively, the water content of the first liquid-absorbing medium layer and the second liquid-absorbing medium layer tangential to it can be controlled. Consequently, when the first and second rolls are bonded to the fabric during rolling, it is easier to achieve a very low water content, thus improving production efficiency. Attached Figure Description

[0008] Figure 1 This is a simplified structural diagram of the low liquid carry rate flat-width rolling mill described in an embodiment of the present invention, wherein the arrows represent the fabric conveying path. Detailed Implementation

[0009] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0010] like Figure 1 As shown, a low liquid-carrying-rate flat-width rolling mill includes a first roll 1 and a second roll 2 that are horizontally tangent to each other. A rotatable third roll 3 is tangently mounted directly below the first roll 1, and the bottom of the third roll 3 is immersed in a first liquid-carrying trough 4. A rotatable fourth roll 5 is tangently mounted directly below the second roll 2, and the bottom of the fourth roll 5 is immersed in a second liquid-carrying trough 6. The roll surfaces of the third roll 3 and the fourth roll 5 are respectively covered with a first liquid-absorbing medium layer 7, and the roll surfaces of the first roll 1 and the second roll 2 are respectively covered with a second liquid-absorbing medium layer 8. Movable extrusion rolls 9 are respectively mounted on the side of the third roll and the side of the fourth roll 5.

[0011] During operation, the fabric 100 passes from bottom to top between the first roller 1 and the second roller 2. The first liquid-absorbing medium layer 7 on the third roller 3 absorbs the impregnation liquid from the first liquid-absorbing trough 4, and the first liquid-absorbing medium layer 7 on the fourth roller 5 absorbs the impregnation liquid from the second liquid-absorbing trough 6. The impregnation liquid is transferred to the second liquid-absorbing medium layer 8 on the first roller 1 and the second roller 2 respectively through the first liquid-absorbing medium layer 7. The first roller 1 and the second roller 2 are in close contact with the fabric 100 and are rolled to evenly roll the impregnation liquid into the fabric 100.

[0012] The extrusion roller 9 presses the third roller 3 and the fourth roller 5 respectively, thereby controlling the moisture content of the first liquid-absorbing medium layer 7 and the second liquid-absorbing medium layer 8 tangent to it according to production needs. When the first roller 1 and the second roller 2 are rolled with the fabric, it is easier to achieve a very low moisture content, which improves production efficiency.

[0013] The first and second liquid-absorbing media layers of this invention can be made of other materials with good water absorption, low weight, and liquid-carrying capacity, such as felt sleeves and anilox rollers.

[0014] The first roll or the second roll is a pressure roll, which is a conventional technical means in the rolling mill field. The extrusion roll structure is existing technology. The linear displacement of the extrusion roll relative to its adjacent roll can be achieved by conventional linear motion mechanisms in the mechanical field, such as linear cylinders. This is not the inventive point of this utility model and will not be elaborated 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 low liquid carryover flat-width rolling mill, characterized in that: It includes a first and a second roll that are horizontally tangent to each other, the first roll or the second roll being a pressure roll; a rotatable third roll is tangentially mounted on the side of the first roll, the horizontal position of the third roll being lower than the horizontal position of the first roll, and the bottom of the third roll being immersed in a first liquid-pressing tank; a rotatable fourth roll is tangentially mounted on the side of the second roll, the horizontal position of the fourth roll being lower than the horizontal position of the second roll, and the bottom of the fourth roll being immersed in a second liquid-pressing tank; the roll surfaces of the third roll and the fourth roll are respectively covered with a first liquid-absorbing medium layer, the roll surfaces of the first roll and the second roll are respectively covered with a second liquid-absorbing medium layer, and movable extrusion rolls are respectively mounted on the side of the third roll and the side of the fourth roll.

2. The low-belt run, open-width calendar according to claim 1, characterized in that: The third roll is located directly below the first roll, and the fourth roll is located directly below the second roll.

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