A water-free pre-treatment device for cotton knitted fabrics

Abstract

The present application discloses a water-free pre-treatment device for cotton knitted fabrics, which relates to the field of fabric processing. The device comprises a box with an open top for placing fabrics, wherein the box is provided with a plurality of circulation devices arranged in layers. The circulation devices include a delivery pipe connected to the outer wall of the box and connected to the interior of the box. The delivery pipe extends upward and is divided into a plurality of branches. The branches are connected to nozzles fixed to the inner wall of the box. The nozzles surround the fabrics in the box, and the nozzles in the same circulation device are located at the same height. A heating pipe is wrapped around the outside of the delivery pipe, and a protective sleeve is fixed to the delivery pipe and located outside the heating pipe. The box is also provided with a stirring device for fully reacting the fabric and the reagent. The present application has the effect of accurately controlling the temperature in the water bath, thereby reducing water consumption and excessive energy consumption.

Description

Technical Field

[0001] The invention relates to the field of fabric processing, in particular to a water-free pre-treatment device for cotton knitted fabrics. Background Art

[0002] Knitted fabrics need to go through processes such as decontamination and removal of impurities before dyeing to ensure better results in subsequent dyeing. However, in the early processing of general knitted fabrics, a large amount of chemical agents are required, which puts the textile industry in a "three highs" link with high water consumption, high wastewater discharge, and high use of chemical additives.

[0003] In recent years, the textile industry has introduced a low-temperature composite water-free short-process process for fabric pre-processing. This process greatly reduces water consumption and reaction temperature conditions, thereby reducing energy consumption, by using detergent-free agents. There are many ways to implement this process, such as adding sodium hydroxide, scouring agent TF-A1, and 30% hydrogen peroxide to the fabric in a water bath at approximately 40°C. The water temperature is then gradually increased, and the water-free detergent TF-A2 is added, raising the temperature to 98°C to allow the fabric and chemicals to fully react. The temperature is then kept warm for about 20 minutes, and finally the liquid is drained, the deoxidizer TF-160C is added, and the fabric is dehydrated and dried.

[0004] During fabric processing, the temperature in the water bath needs to be precisely controlled to allow the reaction between the chemicals and the fabric to fully take effect, thereby achieving the needs of green development. Summary of the Invention

[0005] In order to precisely control the temperature in the water bath, thereby reducing water consumption and alleviating the problem of excessive energy consumption, the present application provides a water-free pre-treatment device for cotton knitted fabrics.

[0006] The present application provides a water-free pre-treatment device for cotton knitted fabrics, which adopts the following technical solution:

[0007] A water-free pre-treatment device for cotton knitted fabrics comprises a box with an open upper end for placing fabrics, wherein a plurality of circulation devices are arranged in layers inside the box, and the circulation device comprises a conveying pipe connected to the outer wall of the box and connected to the interior of the box, the conveying pipe extends upward and is divided into a plurality of branch pipes, the branch pipes are connected to nozzles, the nozzles are fixed to the inner wall of the box, and the plurality of nozzles surround the fabrics located in the box, and the plurality of nozzles in the same circulation device are located at the same height; the circulation device also comprises a water pump arranged on the conveying pipe; a heating pipe is wrapped and fixed on the outside of the conveying pipe, and a protective sleeve is fixed on the conveying pipe and located on the outside of the heating pipe; a stirring device is also provided inside the box for allowing the fabric and the agent to fully react.

[0008] By adopting the above technical solution, a number of circulation devices are arranged in the box, so that the liquid at a low place passes through the delivery pipe and is heated by the heating pipe, which can maintain the liquid temperature at a specific value, or make the temperature of the liquid rise after passing through the heating pipe, and transport the liquid into a higher water level through the nozzle to achieve temperature regulation in the box; due to the multi-layer arrangement of the circulation device, the change of the liquid temperature in the box is more uniform and precise, thereby effectively achieving the effect of energy saving and emission reduction; in addition to regulating the temperature at different water levels through the nozzle, a stirring device is also provided, so that the stirring device promotes the flow of the liquid in the box, thereby achieving faster and more uniform diffusion of the liquid, further reducing energy consumption, and at the same time making the preliminary treatment of the fabric better.

[0009] Optionally, the delivery pipe is provided with a dosing pipe for adding chemicals, the connection between the dosing pipe and the delivery pipe is located in front of the water flow direction of the heating pipe, and a valve is provided on the dosing pipe to prevent the liquid in the box from overflowing; a plurality of receiving rods are fixed to the inner wall of the box port, the receiving rods are arranged horizontally and are used to place fabrics, and the fabric hangs down between two adjacent receiving rods.

[0010] By adopting the above technical solution, the staff adds the agent into the dosing pipe, and then enters the box through the branch pipe and the nozzle, so that the agent is dispersed more evenly; when the water pipe transports the liquid, a valve is set to reduce the overflow of the liquid from the dosing pipe; the receiving rod is used to place the fabric so that the fabric can occupy the internal cavity of the box as much as possible, and process as much fabric as possible at a time, thereby improving efficiency and reducing energy consumption.

[0011] Optionally, the stirring device includes a plurality of rotating rollers rotatably connected to the inner wall of the box body, the rotating rollers are rotatable, and the rotating rollers are divided into a plurality of groups, each group of rotating rollers is arranged in a vertical direction, and each group of rotating rollers is located directly below a corresponding receiving rod and parallel to the corresponding receiving rod; the stirring device also includes a plurality of first U-shaped rollers and a plurality of second U-shaped rollers fixed on the rotating rollers, the ends of the first U-shaped roller and the second U-shaped roller are fixed to the side walls of the rotating rollers, and the axis of the first U-shaped roller is farther from the axis of the rotating roller than the second U-shaped roller.

[0012] By adopting the above technical solution, the rotating roller drives the first U-shaped roller and the second U-shaped roller to move during the rotation process, so that the first U-shaped roller and the second U-shaped roller intermittently beat the fabric. At the same time, the first U-shaped roller and the second U-shaped roller stir the liquid, causing the liquid to flow while promoting the rapid and even diffusion of the liquid, thereby making the fabric and liquid react more fully.

[0013] Optionally, the stirring device also includes a gear fixed on the rotating roller, and a chain connected to the gears on the adjacent rotating rollers in the same group; the stirring device also includes a drive motor fixed on the outside of the box and connected to a rotating roller in the same group of rotating rollers.

[0014] By adopting the above technical solution, the rotation of the rotating roller is achieved by driving the motor to rotate, which drives one of the rotating rollers in the same group to rotate, and then the rotating rollers are rotated synchronously and in the same direction through the chain.

[0015] Optionally, the first U-shaped roller and the second U-shaped roller located on the same rotating roller are staggered, and the angle between the first U-shaped roller and the second U-shaped roller is 180°.

[0016] By adopting the above technical solution, intermittent beating of the fabric is further achieved, making the movement of the fabric more floating, and then making the reaction between the fabric and the liquid more sufficient.

[0017] Optionally, in the same group of rotating rollers, a first U-shaped roller on the rotating roller and a second U-shaped roller on the adjacent rotating roller are aligned.

[0018] By adopting the above technical solution, intermittent beating of the fabric is further achieved, making the movement of the fabric more floating, and then making the reaction between the fabric and the liquid more sufficient.

[0019] Optionally, the first U-shaped roller and the second U-shaped roller each include two connecting rods fixed on the side walls of the rotating roller, a fixed cover fixed on the end faces of the connecting rods, a filter tube is provided between the two fixed covers, and a plurality of filter holes are opened on the filter tube; the fixed cover and the end of the filter tube are detachably connected.

[0020] By adopting the above technical solution, impurities on the fabric can be collected through the filter tube. During the rotation of the rotating roller, the filter tube is driven to move, so that the impurities enter the filter tube through the filter hole. The staff can later remove the filter tube and the fixed cover to clean the inside of the filter tube.

[0021] Optionally, an outer filter screen is fixed inside the filter tube, and an inner filter screen is fixed to the inner wall of the outer filter screen, and the filter holes, the mesh holes on the outer filter screen, and the mesh holes on the inner filter screen are gradually reduced.

[0022] By adopting the above technical solution, an outer filter screen and an inner filter screen are provided in the filter tube, so that impurities entering the filter tube are difficult to flow out again.

[0023] Optionally, two sliding rods are provided on the inner wall of the box port, and the two sliding rods are located above the receiving rod; the two sliding rods are arranged horizontally and parallel to each other, and a scraper for removing floating objects is provided between the two sliding rods, and the scraper is arranged at an angle and moves along the length direction of the sliding rod; one of the sliding rods is threadedly connected to the scraper, and the outside of the box is fixedly connected to the moving motor of the sliding rod.

[0024] By adopting the above technical solution, a mobile motor drives a slide bar to realize the movement of the scraper on the slide bar. During the movement, the scraper can collect floating objects floating on the water surface and clean them.

[0025] Optionally, a bracket is fixed to the outer side wall of the box body, a reeling roller and a reeling roller are provided on the bracket, and an end cover is provided at the box body port.

[0026] By adopting the above technical solution, the arrangement of the unwinding roller and the winding roller facilitates the placement and storage of the fabric, and the end cover can cover the box body in the working state, thereby playing a role in heat preservation for the liquid.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Through several circulation devices, the liquid at a low position is transported through the delivery pipe, the heating pipe, and then delivered from the nozzle, so that the staff can evenly and accurately control the temperature of the liquid in the box.

[0029] 2. Through the stirring device, the rotation of the rotating roller will drive the rotation of the first U-shaped roller and the second U-shaped roller, thereby achieving stirring of the water area on the one hand and movement of the fabric on the other hand, further promoting the reaction between the fabric and the liquid.

[0030] 3. Through the filter tube, outer filter, inner filter, and scraper, the impurities can be easily removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0032] Figure 2 It is a structural diagram of the heating pipe connected to the conveying pipe.

[0033] Figure 3 It is a structural schematic diagram of the first U-shaped tube and the second U-shaped tube connected to the rotating roller.

[0034] Figure 4 It is a structural diagram of the driving motor connected to the rotating roller.

[0035] Figure 5 It is a structural diagram of the scraper connected to the box.

[0036] Description of reference numerals:

[0037] 1. Box body; 2. End cover; 3. Circulation device; 4. Nozzle; 5. Delivery pipe; 6. Heating pipe; 7. Protective cover; 8. Water pump; 9. Dosing pipe; 10. Valve; 11. Bracket; 12. Receiver rod; 13. Stirring device; 14. Rotating roller; 15. First U-shaped roller; 16. Second U-shaped roller; 17. Connecting rod; 18. Filter tube; 19. Fixed cover; 20. Outer filter; 21. Inner filter; 22. Gear; 23. Chain; 24. Filter hole; 25. Drive motor; 26. Moving motor; 27. Sliding rod; 28. Scraper; 29. Winding roller; 30. Unwinding roller. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-5 This application is described in further detail.

[0039] The present application embodiment discloses a water-free pre-treatment device for cotton knitted fabrics, referring to Figure 1 and 2 , including a box body 1 with an open upper end, fabric is placed in the box body 1, and an end cover 2 for heat preservation is provided at the end of the box body 1, and the end cover 2 is rotatably connected to the outer wall of the box body 1; a three-layer circulation device 3 is provided inside the box body 1, and several circulation devices 3 are evenly spaced along the vertical direction; the circulation device 3 includes several nozzles 4 fixed on the inner wall of the box body 1, and the nozzles 4 in the same circulation device 3 are located on the same plane, including a delivery pipe 5 connected to the outer wall of the box body 1 and connected to the interior of the box body 1, the delivery pipe 5 extends upward, and one end of the delivery pipe 5 is a thin branch and connected to the corresponding nozzle 4; the circulation device 3 also includes a water pump 8 provided on the delivery pipe 5, through which the liquid at a lower position enters the delivery pipe 5 and is then sprayed out through the nozzle 4 at a higher position; a heating pipe 6 is wrapped and fixed on the outside of the delivery pipe 5, and the heating pipe 6 is located on the outside of the box body 1, as well as a protective cover 7 fixed to the outer wall of the delivery pipe 5 and located outside the heating pipe 6, the protective cover 7 is used to reduce heat loss.

[0040] When the liquid in the box body 1 needs to maintain a certain temperature, the temperature of the heating tube 6 remains unchanged; when the liquid in the box body 1 needs to be heated, the temperature of the heating tube 6 can be gradually increased to allow the liquid to pass through.

[0041] Reference Figure 1 and 2, the delivery pipe 5 is also connected to a dosing pipe 9 for adding a medicament, and a valve 10 is provided on the dosing pipe 9. The connection between the dosing pipe 9 and the delivery pipe 5 is located at the front end of the water flow direction of the heating pipe 6, that is, the liquid is mixed with the medicament after passing through the heating pipe 6; a bracket 11 is welded on the outer wall of the box body, and a winding roller 29 and a unwinding roller 30 are rotatably connected on the bracket 11. The winding roller 29 and the unwinding roller 30 are located on both sides of the box body, so that the cloth can be conveniently placed in the box body 1 and the cloth in the box body 1 can be recycled; a plurality of receiving rods 12 are welded on the inner wall of the box body 1, and the receiving rods 12 are parallel to each other and horizontally arranged. The axes of the receiving rods 12, the receiving rods 12 and the winding roller 29 and the unwinding roller 30 are parallel; a plurality of receiving rods 12 are all located at the port of the box body 1, and the cloth coming out of the unwinding roller 30 will be placed on a plurality of receiving rods 12, so that the cloth hangs down from between adjacent receiving rods 12 to the bottom end of the box body 1, so that the cloth can more fully occupy the internal space of the box body 1.

[0042] Reference Figure 1 and 3 , the box body 1 is also provided with a stirring device 13 for stirring the cloth and realizing the flow of the liquid; the stirring device 13 includes a plurality of rotating rollers 14 rotatably connected to the inner wall of the box body 1, the rotating rollers 14 and the receiving rods 12 are parallel to each other, and the rotating rollers 14 are divided into a plurality of groups, and the plurality of rotating rollers 14 in each group are located below the corresponding receiving rods 12, and the rotating rollers 14 are evenly spaced along the vertical direction; the stirring device 13 also includes a plurality of first U-shaped rollers 15 and a plurality of second U-shaped rollers 16 fixed to the rotating rollers 14, and the end faces of the first U-shaped tube and the second U-shaped tube are fixed to On the side wall of the rotating roller 14, the first U-shaped tube is farther away from the rotating roller 14 than the second U-shaped tube, so that the first U-shaped roller 15 or the second U-shaped roller 16 intermittently beats the cloth, and on the other hand, it can stir the liquid in the box 1, so that the medicine is quickly and evenly diffused inside the box 1; the first U-shaped roller 15 and the second U-shaped roller 16 on the same rotating roller 14 are arranged at intervals, and the angle between the first U-shaped roller 15 and the second U-shaped roller 16 is 180°; the first U-shaped roller 15 on the adjacent rotating rollers 14 in the same group is opposite to the second U-shaped roller 16.

[0043] Reference Figure 1 and 4 The stirring device 13 also includes a gear 22 fixed on the rotating rod, the gear 22 is located outside the box body 1, and the adjacent gears 22 located on the same group of rotating rollers 14 are synchronously connected through a chain 23; and the stirring device 13 also includes a plurality of drive motors 25 fixed on the bracket 11, the drive motors 25 correspond to each group of rotating rollers 14, and the output shaft of the drive motor 25 is welded to one of the rotating rollers 14 in the same group of rotating rollers 14.

[0044] The start of the driving motor 25 drives the corresponding group of rotating rollers 14 to rotate, causing the first U-shaped roller 15 and the second U-shaped roller 16 to rotate accordingly, and then beat the fabric placed on the receiving rod 12, so that the fabric can react with the liquid component.

[0045] Since there is friction between the first U-shaped roller 15, the second U-shaped roller 16 and the fabric, the fabric may move, so an elastic sheet can be provided on the receiving rod 12 to clamp the fabric and achieve fixation.

[0046] Reference Figure 1 and 3 The first U-shaped roller 15 and the second U-shaped roller 16 each include two connecting rods 17 welded to the rotating roller 14, and a fixing cover 19 is welded to the end of the connecting rod 17. A filter tube 18 is arranged between the two fixing covers 19. The filter tube 18 and the fixing cover 19 are coaxially arranged, and the fixing cover 19 and the filter tube 18 are detachably connected by bolts; a plurality of filter holes 24 are opened on the filter tube 18 to allow impurities to enter; an outer filter screen 20 and an inner filter screen 21 fixed to the inner wall of the outer filter screen 20 are fixed inside the filter tube 18, and the filter tube 18, the outer filter screen 20 and the inner filter screen 21 are fixed by the connecting rod 17, and the filter holes 24, the mesh size on the outer filter screen 20 and the mesh size on the inner filter screen 21 gradually decrease.

[0047] Reference Figure 1 and 5 Two slide bars 27 are provided on the inner wall of the port of the box body 1, and a scraper 28 for removing floating objects is provided between the two slide bars 27; the slide bars 27 are arranged horizontally and parallel to each other, the axes of the slide bars 27 are parallel to the axis of the receiving rod 12, and the two slide bars 27 are located above the receiving rod 12; one of the slide bars 27 is fixed to the box body 1, and the other slide bar 27 is rotatably connected to the box body 1, and the slide bar 27 rotatably connected to the box body 1 is threadedly connected to the scraper 28, that is, the slide bar 27 is equivalent to a screw; a moving motor 26 connected to a threaded slide bar 27 is fixed to the outer wall of the box body 1, and the moving motor 26 drives a slide bar 27 to rotate, driving the scraper 28 to move, and the scraper 28 is arranged at an angle to facilitate the removal of impurities.

[0048] The implementation principle of the water-free pre-treatment device for cotton knitted fabrics in the embodiment of the present application is as follows: the staff places the fabric on several receiving rods 12 and allows the fabric to hang down between adjacent receiving rods 12; through several circulation devices 3, the liquid at a lower position is passed through the delivery pipe 5, the heating pipe 6, and then delivered from the nozzle 4, so that the staff can evenly and accurately control the temperature of the liquid in the box 1; through the stirring device 13, the rotation of the rotating roller 14 will drive the rotation of the first U-shaped roller 15 and the second U-shaped roller 16, thereby achieving stirring of the water area on the one hand and movement of the fabric on the other hand, further promoting the reaction between the fabric and the liquid; during the rotation process, impurities are collected by the filter tube 18, and floating objects are collected by the scraper 28.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A water-free pre-treatment device for cotton knitted fabrics, comprising a box (1) with an open upper end for placing the fabric, characterized in that: The box (1) is provided with a plurality of circulation devices (3) in layers. The circulation device (3) includes a delivery pipe (5) connected to the outer wall of the box (1) and connected to the interior of the box (1). The delivery pipe (5) extends upward and is divided into a plurality of branch pipes. The branch pipes are connected to nozzles (4). The nozzles (4) are fixed to the inner wall of the box (1). The plurality of nozzles (4) surround the fabric located in the box (1). The plurality of nozzles (4) in the same circulation device (3) are located at the same height. The circulation device (3) also includes a water pump (8) provided on the delivery pipe (5). A heating pipe (6) is fixedly wound around the outer side of the delivery pipe (5). ), and a protective cover (7) fixed on the delivery pipe (5) and located outside the heating pipe (6); a stirring device (13) for allowing the fabric and the agent to fully react is also provided inside the box (1); a dosing pipe (9) for adding chemical agents is provided on the delivery pipe (5), the connection between the dosing pipe (9) and the delivery pipe (5) is located at the front end of the water flow direction of the heating pipe (6), and a valve (10) is provided on the dosing pipe (9) for preventing the liquid in the box (1) from overflowing; a plurality of receiving rods (12) are fixed on the inner wall of the port of the box (1), and the receiving rods (12) are arranged horizontally and The receiving rod (12) is used to place the fabric, and the fabric hangs down between two adjacent receiving rods (12); the stirring device (13) includes a plurality of rotating rollers (14) rotatably connected to the inner wall of the box body (1), the rotating rollers (14) are rotatable, and the rotating rollers (14) are divided into a plurality of groups, each group of rotating rollers (14) is arranged in a vertical direction, and each group of rotating rollers (14) is located directly below a corresponding receiving rod (12) and is parallel to the corresponding receiving rod (12); the stirring device (13) also includes a plurality of first U-shaped rollers (15) and a plurality of second U-shaped rollers (16) fixed on the rotating rollers (14), the first U The ends of the first U-shaped roller (15) and the second U-shaped roller (16) are both fixed to the side wall of the rotating roller (14), and the axis of the first U-shaped roller (15) is farther from the axis of the rotating roller (14) than the second U-shaped roller (16); the first U-shaped roller (15) and the second U-shaped roller (16) both include two connecting rods (17) fixed to the side wall of the rotating roller (14), and a fixing cover (19) fixed to the end surface of the connecting rod (17); a filter tube (18) is provided between the two fixing covers (19), and a plurality of filter holes (24) are provided on the filter tube (18); the fixing cover (19) and the end of the filter tube (18) are detachably connected.

2. The water-free pre-treatment device for cotton knitted fabric according to claim 1, characterized in that: The stirring device (13) further comprises a gear (22) fixed on the rotating roller (14), and a chain (23) connected to the gear (22) on the adjacent rotating rollers (14) in the same group; the stirring device (13) further comprises a driving motor (25) fixed on the outside of the box (1) and connected to one of the rotating rollers (14) in the same group.

3. The water-free pre-treatment device for cotton knitted fabrics according to claim 2, characterized in that: The first U-shaped roller (15) and the second U-shaped roller (16) located on the same rotating roller (14) are staggered, and the angle between the first U-shaped roller (15) and the second U-shaped roller (16) is 180 degrees.

4. The water-free pre-treatment device for cotton knitted fabrics according to claim 3, characterized in that: In the same group of rotating rollers (14), a first U-shaped roller (15) on the rotating roller (14) and a second U-shaped roller (16) on an adjacent rotating roller (14) are arranged in alignment.

5. The water-free pre-treatment device for cotton knitted fabrics according to claim 1, characterized in that: An outer filter screen (20) and an inner filter screen (21) fixed to the inner wall of the outer filter screen (20) are fixed inside the filter tube (18), and the filter holes (24), the mesh holes on the outer filter screen (20), and the mesh holes on the inner filter screen (21) gradually decrease in size.

6. The water-free pre-treatment device for cotton knitted fabrics according to claim 1, characterized in that: Two slide bars (27) are provided on the inner wall of the port of the box body (1), and the two slide bars (27) are located above the receiving rod (12); the two slide bars (27) are arranged horizontally and parallel to each other, and a scraper (28) for removing floating objects is provided between the two slide bars (27), and the scraper (28) is arranged obliquely and moves along the length direction of the slide bars (27); one of the slide bars (27) is threadedly connected to the scraper (28), and the outer side of the box body (1) is fixedly connected to the moving motor (26) of the slide bar (27).

7. The water-free pre-treatment device for cotton knitted fabrics according to claim 1, characterized in that: A bracket (11) is fixed to the outer wall of the box body (1), a reeling roller (30) and a reeling roller (29) are provided on the bracket (11), and an end cover (2) is provided at the port of the box body (1).

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