Basic Structure And Principle Of Continuous Washing Machine

Dyes for knitted fabrics Printing technology In the past ten years, it has been vigorously developed. However, the washing equipment for knitted fabrics after dye printing and steaming has been using the old type cylinder rope washing machine for a long time. Although this can keep knitted fabrics in a loose state during washing, it is limited in terms of output and cylinder quality. For this reason, the "flat washing and rope washing integrated knitting continuous washing machine" has been developed. The so-called continuous water washing is to continuously replace the old water on the fabric with new water (water containing detergent and clear water) to take away the attachment on the fabric. The key to water washing is whether the attachment in the fabric fiber can be effectively removed.

The design theory of the continuous washing machine for knitting integrated with flat washing and rope washing: the evaporated printed knitted fabric is run on the upper and lower rollers in a continuous arrangement in an open way, so that the knitted fabric can soak and run in the sink, while the water is forced to spray on the knitted fabric to achieve preliminary desizing, It can prevent the unresponsive dyes at the printing part from contaminating other parts after hydration. However, it is unreasonable to only use the open width operation method to realize the whole process of continuous washing of knitted fabrics, because the continuous operation of knitted fabrics stretched on the upper and lower rollers will inevitably produce tension greater than the bearing capacity of knitted fabrics, which will lead to the stretching of knitted fabrics and difficulty in setting; Moreover, the excessive longitudinal tension of the fabric will hinder the expansion of the fiber and reduce the ability to remove the attached fabric from the fabric fiber. Therefore, in the design of continuous washing equipment, it is the most ideal to keep the knitted fabric in a low tension rope like running state by rope washing for the soaping and washing processes after the initial desizing of flat washing.

Continuous washing machine integrating horizontal washing and rope washing, fully considering the process Printed knitted fabric Properties of. In terms of mechanical mechanism, the knitted fabric is always subject to repeated physical cleaning actions such as spraying, wetting, rubbing, flapping and wringing in a relatively loose rope state. For chemical additives, the soaping agent and color fixing agent are selected, and the automatic online fluid replenishing device is used in continuous operation. The continuous water washing machine is composed of seven parts in series, namely, open width spray tank A, channeling water washing tank B, swelling transition tank C, rope shaped water washing tank D (5 groups), rope shaped vacuum dehydration device E, untwisting and cloth expanding device F and open width cloth dropping device G, and operates synchronously. The continuous water washing process is as follows: open width feeding → cloth surface centering → spray water washing → single drum hole wheel circulating water washing → double drum hole wheel circulating water washing → fluffy excessive → rope like water washing (5 cases in total, 25 grids) → rope like vacuum dewatering → opening → centering → cloth dropping. Multiple adjustable spraying devices and hole wheel circulating channeling water washing unit are set in the open width spray tank and channeling water washing tank, so that the fabric to be washed can be wetted and expanded, and part of floating color and size can be washed away.

There are five groups of rope shaped water washing boxes, each group of water washing boxes is divided into five water washing tanks (only one group of water washing boxes is shown in the figure). Continuous washing machine Its function distribution is as follows: the first group of water washing boxes, 5 grids of water washing tanks, is used for medium temperature desizing (5 times of rubbing, kneading, clapping, beating and extrusion, and anti fouling agent can be added); the second and third groups of water washing boxes, 10 grids of water washing tanks, are used for high temperature soaping (10 times of rubbing, kneading, clapping, beating and extrusion, and adding soaping agent); the fourth group of water washing boxes, 5 grids of water washing tanks, is used for high temperature over washing (5 times of rubbing, kneading, clapping, beating and extrusion), The fifth group of water washing tank is used for medium temperature over washing (five times of rubbing, kneading, patting, beating and squeezing, which can strengthen the colorant). In different stages of the rope shaped washing box, the knitted fabric is continuously washed through the chemical washing action of different auxiliaries and repeated physical cleaning actions such as wetting, rubbing, flapping and squeezing, so that the size and attachments on the fabric are removed in the process of continuous chemical changes and physical cleaning.