Low-quantity liquid feeding padder

Abstract

The utility model discloses a low-quantity liquid feeding padder which comprises a mangle unit, the mangle unit comprises a first roller and a second roller, the first roller is located above the second roller, the first roller is rotatably installed on a machine frame, the second roller is a pressurizing roller and is driven by a pressurizing device, and the first roller and the second roller are arranged on the machine frame. A liquid tank is mounted below the second roller, and the bottom of the second roller is lower than the liquid level of the liquid tank; the second roller comprises a roller body, and an elastic roller surface with micropores is arranged on the outer surface of the roller body. The liquid feeding device is compact in structure and capable of accurately controlling the liquid feeding amount of the fabric and achieving arbitrary adjustment within the low liquid feeding range of 10%-30%, so that heat energy consumption of the next drying procedure is greatly reduced, and production efficiency and product quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of dyeing and finishing equipment, in particular to a low-volume liquid feeding padder. Background Art

[0002] When the flat fabric is dipped into dyeing liquid or chemical or finishing agent treatment liquid, a uniform padder is required to make the treatment liquid evenly distributed in the fabric at a certain rolling rate. The utility model patent of China Patent No. 201922327195.1 discloses a continuous double-layer padder device for extrusion dyeing, which is provided in sequence along the processing order: a first slurry tank, a first padder, a second slurry tank and a second padder, the first slurry tank is arranged below the first padder, the second slurry tank is arranged at the discharge end of the first padder, the first padder includes two tangentially arranged rollers, and the fabric passes between the two rollers, and the second slurry tank is arranged in the triangular area formed by the tangent of the two rollers, and the fabric enters the second slurry tank while leaving the two rollers; the second padder is arranged above the first padder, and the first padder and the second padder are both connected to airbag cylinders. This structure optimizes the roller structure and uses the airbag cylinder to provide a more balanced pressure, so that the roller squeezes the fabric better. However, the liquid carrying rate of the fabric after rolling is still more than 40%, which brings a heavy burden to the subsequent drying process, increases heat energy consumption and reduces production efficiency, and it is impossible to achieve double-sided liquid feeding. In view of this, it is necessary to improve the existing rolling car structure to improve production efficiency. Utility Model Content

[0003] The utility model aims to provide a low-volume liquid feeding padder.

[0004] The technical solution to achieve the purpose of the utility model is: a low-volume liquid feeding rolling mill, which includes a liquid squeezing unit, the liquid squeezing unit includes a first roller and a second roller, the first roller is located above the second roller, the first roller is rotatably mounted on the frame, the second roller is a pressure roller, the second roller is driven by a pressure device, a liquid tank is installed below the second roller, and the bottom of the second roller is lower than the liquid level of the liquid tank; the second roller includes a roller body, and the outer surface of the roller body is provided with an elastic roller surface with micropores.

[0005] Furthermore, the second roller is rotatably mounted on the frame, the first roller is a pressure roller, and the first roller is driven by a pressure device.

[0006] Furthermore, a pressurizing device is respectively installed at both ends of the second rolling roller, and the pressurizing device includes a pressurizing swing arm and a pressurizing cylinder. The pressurizing cylinder is installed on the frame, and the piston rod of the pressurizing cylinder is hinged to one end of the pressurizing swing arm, and the other end of the pressurizing swing arm is hinged to the frame. The shaft end of the second rolling roller can be rotatably installed on the pressurizing swing arm.

[0007] Furthermore, the first rolling roller is an active roller.

[0008] Furthermore, the second roller comprises a roller shaft, and the inner wall of the roller body is connected to the roller shaft through two bearings, and the two bearings are arranged near the middle of the roller shaft. The bearing is located in the middle structure so that the deflection of the second roller is reduced under the same load condition, so that the pressure in the width direction of the fabric is uniform and the squeezing liquid is more uniform.

[0009] Furthermore, the second roller has a roller cloth inlet end and a roller cloth outlet end, and an adjustable squeezing roller is installed on the side of the roller cloth inlet end. By increasing or decreasing the pressure of the squeezing roller, the amount of liquid carried by the microporous roller before contacting the fabric can be adjusted.

[0010] Furthermore, a spray mechanism for adding liquid to the second roller is installed on the side of the cloth outlet end of the second roller, so as to ensure the uniform freshness of the dyeing liquid.

[0011] Furthermore, it comprises two said squeezing units, which are arranged up and down, and a cloth guide roller is installed between the two squeezing units, and the low-volume liquid feeding squeezing car has a cloth inlet end and a cloth outlet end, and the cloth inlet end and the cloth outlet end are on the same side, and the fabric enters the squeezing unit located below and sequentially passes through the squeezing unit located below, the cloth guide roller and the squeezing unit located above before being discharged. This structure can realize double-sided or single-sided liquid feeding, and can also apply different process media on the front and back sides of the fabric, and the process adaptability of the device is very flexible.

[0012] The second roller of the low-volume liquid feeding roller realized by the utility model is partially immersed in the liquid tank when in use, and the pressure device pushes the second roller upward to produce squeezing with the first roller during operation, so as to transfer the dye liquid carried by the second roller to the fabric, and the micropores of the elastic roller surface with micropores are closed under pressure in a section from the fabric entering the nip point to the center of the nip point, and then the pressure increases in a section from the center of the nip point to the nip point, and the micropores expand to restore the original gap to form a local negative pressure, which can squeeze out part of the water on the wet fabric that has been squeezed with water, thereby accurately controlling the liquid feeding amount of the fabric, realizing arbitrary adjustment within the low liquid feeding range of 10-30%, greatly reducing the heat energy consumption of the subsequent drying process, and improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the low-volume liquid feeding padder according to an embodiment of the utility model; wherein the arrow represents the direction of the fabric;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the second rolling roller in an embodiment of the utility model. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1 As shown, a low-volume liquid feeding padder comprises two said liquid feeding units 1, the two said liquid feeding units 1 are arranged up and down, a cloth guide roller 2 is installed between the two said liquid feeding units 1, the said low-volume liquid feeding padder has a cloth inlet end 10 and a cloth outlet end 20, the cloth inlet end 10 and the cloth outlet end 20 are on the same side, the fabric 100 is fed from the said liquid feeding unit 1 located below and sequentially passes through the said liquid feeding unit 1 located below, the said cloth guide roller 2 and the said liquid feeding unit 1 located above before being discharged.

[0017] The liquid pressing unit 1 includes a first roller 11 and a second roller 12, wherein the first roller 11 is located above the second roller 12, the first roller 11 is a steel rod and an active roller, the first roller 11 is rotatably mounted on the frame 200, the second roller 12 is a pressure roller, the second roller 12 is driven by a pressure device 13, a liquid tank 14 is mounted below the second roller 12, and the bottom of the second roller 12 is lower than the liquid level of the liquid tank 14; the second roller 12 has a roller cloth feed end 30 and a roller cloth outlet end 40, an adjustable squeezing roller 15 is mounted on the side of the roller cloth feed end 30, and a spray mechanism 16 for adding liquid to the second roller 12 is mounted on the side of the roller cloth outlet end 40.

[0018] Furthermore, a pressurizing device 13 is respectively installed at both ends of the second rolling roller 12, and the pressurizing device 13 includes a pressurizing swing arm 131 and a pressurizing cylinder 132. The pressurizing cylinder 132 is installed on the frame 200, and the piston rod of the pressurizing cylinder 132 is hinged to one end 1311 of the pressurizing swing arm 131, and the other end 1312 of the pressurizing swing arm 131 is hinged to the frame 200. The axial end of the second rolling roller 12 can be rotatably installed on the pressurizing swing arm 131.

[0019] Furthermore, if Figure 2 As shown, the second rolling roller 12 includes a roller body 121 and a roller shaft 122 . The outer surface of the roller body 121 is provided with an elastic roller surface 123 with micropores. The inner wall of the roller body 121 is rotatably connected to the roller shaft 122 through two bearings 124 . The two bearings 124 are arranged near the middle of the roller shaft 122 .

[0020] The low-volume liquid feeding padder realized in this embodiment has a second roller that is partially immersed in the liquid tank when in use. During operation, the pressure device pushes the second roller upward to produce squeezing with the first roller, thereby transferring the dye liquid carried on the second roller to the fabric. The micropores of the elastic roller surface with micropores are closed under pressure in the section from the fabric entering the nip point to the center of the nip point, and then the pressure increases in the section from the center of the nip point to the nip point. The micropores expand to restore the original gap and form a local negative pressure, which can squeeze out part of the water on the wet fabric that has been squeezed, thereby accurately controlling the low liquid feeding amount of the fabric. At the same time, the design of the double-layer liquid squeezing unit can also realize double-sided liquid feeding or single-sided liquid feeding, and different process media can be applied to the front and back sides of the fabric. The process adaptability of the device is very flexible.

[0021] In the present invention, either the first roller or the second roller can be selected as a pressure roller. When one roller is a pressure roller, the other roller is an active roller. In the embodiment, the first roller is a steel rod, which has stable and accurate dimensions and is more reasonable for driving as an active roller. The roller surface material of the second roller can be various, such as rubber, felt, foam, mesh and other materials, to meet the low liquid supply requirements of different industries, different fabric types and different process media. When the second roller is a center roller structure at the same time, the pressure in the width direction of the fabric can be uniform, and the squeezing liquid is more uniform. The side of the second roller can be arranged according to needs. An adjustable squeezing roller is installed, and the liquid carrying rate of the microporous roller before contacting the fabric can be adjusted by increasing or decreasing the pressure of the adjustable squeezing roller; the spray mechanism is added as needed to ensure the uniform freshness of the dye solution; the adjustable squeezing roller and the spray mechanism structure are both existing technologies and are not described here in detail; the utility model can achieve arbitrary adjustment of the low liquid carrying rate within the range of 10-30% with only one squeezing unit, and two squeezing units can achieve double-sided or single-sided liquid feeding, and different process media can also be applied to the front and back sides of the fabric. The process adaptability of the device is very flexible.

[0022] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A low-volume liquid feeding padder, characterized in that: It includes a liquid squeezing unit, which includes a first roller and a second roller, the first roller is located above the second roller, the first roller is rotatably installed on the frame, the second roller is a pressure roller, the second roller is driven by a pressure device, a liquid tank is installed below the second roller, and the bottom of the second roller is lower than the liquid level of the liquid tank; the second roller includes a roller body and a roller shaft, and the outer surface of the roller body is provided with an elastic roller surface with micropores.

2. The low-volume liquid feeding padder according to claim 1, characterized in that: The second roller is rotatably mounted on the frame, the first roller is a pressure roller, and the first roller is driven by a pressure device.

3. The low-volume liquid feeding padder according to claim 1, characterized in that: A pressurizing device is respectively installed at both ends of the second rolling roller, and the pressurizing device includes a pressurizing swing arm and a pressurizing cylinder. The pressurizing cylinder is installed on the frame, the piston rod of the pressurizing cylinder is hinged to one end of the pressurizing swing arm, and the other end of the pressurizing swing arm is hinged to the frame, and the shaft end of the second rolling roller can be rotatably installed on the pressurizing swing arm.

4. The low-volume liquid feeding padder according to claim 1, characterized in that: The first rolling roller is a steel rod, and the first rolling roller is an active roller.

5. The low-volume liquid feeding padder according to claim 1, characterized in that: The inner wall of the roller body of the second roller is connected to the roller shaft through two bearings, and the two bearings are arranged near the middle of the roller shaft.

6. The low-volume liquid feeding padder according to claim 1, characterized in that: The second roller has a roller cloth-feeding end and a roller cloth-discharging end, and an adjustable squeezing roller is installed on the side of the roller cloth-feeding end.

7. The low-volume liquid feeding padder according to claim 6, characterized in that: A spray mechanism for adding liquid to the second roller is installed on the side of the cloth outlet end of the second roller.

8. The low-volume liquid feeding padder according to claim 1, characterized in that: It includes two squeezing units, which are arranged up and down, and a cloth guide roller is installed between the two squeezing units. The low-volume liquid feeding squeezing car has a cloth inlet end and a cloth outlet end, and the cloth inlet end and the cloth outlet end are on the same side. The fabric is fed into the squeezing unit located below and passes through the squeezing unit located below, the cloth guide roller and the squeezing unit located above in sequence before being discharged.

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