Desizing equipment and rayon pretreatment process

Abstract

The desizing equipment comprises a liquid removing device, the liquid removing device comprises a second rotating shaft, the second rotating shaft can rotate along the axis of the second rotating shaft, the second rotating shaft comprises two arc parts which are symmetrically arranged, the arc parts are provided with liquid absorbing parts, the liquid absorbing parts rotate along with the second rotating shaft, and the liquid absorbing parts are connected with the second rotating shaft. The outer wall of the liquid absorption part can be propped against the cloth; the liquid removing device further comprises a rolling wheel, the rolling wheel can move left and right, the rolling wheel is located on the side, away from the cloth, of the second rotating shaft, and the rolling wheel can be pressed into the liquid absorbing component when moving towards the right side. According to the desizing equipment and the rayon pretreatment process, the environmental protection property is improved, and meanwhile the desizing efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of desizing equipment, and more specifically to a desizing equipment and a pre-treatment process for rayon. Background Art

[0002] At present, the pre-treatment process of artificial cotton includes a desizing step. During desizing, the fabric is soaked in alkali solution to precipitate the slurry on the fabric. Since the fabric stays in the alkali solution pool for a long time, the slurry is mixed with the alkali solution after precipitation, and the concentration of the alkali solution decreases, resulting in a decrease in the desizing efficiency of the fabric. Especially in the early stage of desizing, the amount of slurry precipitation is very high, which has the greatest impact on the desizing efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a desizing device and a pre-treatment process for rayon to improve environmental protection while ensuring desizing efficiency.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a desizing device, comprising a liquid removal device, the liquid removal device comprising a second rotating shaft, the second rotating shaft can rotate along its own axis, the second rotating shaft comprises two symmetrically arranged arc portions, the arc portions are equipped with a liquid absorbing component, the liquid absorbing component rotates with the second rotating shaft, and the outer wall of the liquid absorbing component can abut against the cloth; the liquid removal device also comprises a roller, the roller can move left and right, the roller is located on the side of the second rotating shaft away from the cloth, and the roller can be pressed into the liquid absorbing component when it moves to the right; the liquid absorbing component comprises an end face, a movable plate is connected between the end face and the end face of another liquid absorbing component, the movable plate can move left and right, and when the movable plate moves, it drives the end face to move synchronously, so that the liquid absorbing component can be stretched or contracted.

[0005] The present invention is further configured such that the second rotating shaft also includes two symmetrically arranged planar portions, the planar portions are equipped with slide rails, the slide rails are equipped with the movable plate, the movable plate includes end portions located at both ends, and the end portions are connected to cylinders.

[0006] The present invention is further configured to further include a fixing frame, the fixing frame is slidably connected to a sliding seat, the sliding seat can slide left and right along the inner wall of the fixing frame, the sliding seat is equipped with the roller, and the roller can rotate along its own axis.

[0007] The present invention is further configured such that the second rotating shaft is slidably connected with a slide plate, the slide plate can move radially inward and outward along the second rotating shaft, the slide plate includes an extension portion, and the extension portion can extend out of the arc portion to squeeze and open the liquid absorbing component.

[0008] The present invention is further configured to include a rotating shaft 1, which can rotate along its own axis, the outer wall of the rotating shaft 1 abuts against the slide, the extension portion is located at an end of the slide away from the rotating shaft 1, and the extension portion abuts against the inner wall of the liquid absorbing component.

[0009] The present invention is further configured to further include a fixed shaft, the fixed shaft passes through the second rotating shaft, and the fixed shaft is connected to the second rotating shaft via a bearing.

[0010] The present invention is further configured such that the rotating shaft 1 passes through the fixed shaft, and the cross section of the rotating shaft 1 is elliptical.

[0011] The present invention is further configured such that the second rotating shaft is provided with a slot body, and the first rotating shaft passes through the slot body.

[0012] The present invention is further configured such that two liquid removal devices are provided, and the two liquid removal devices are located on the left and right sides of the cloth and distributed up and down.

[0013] The present invention adopts the following technical scheme: a pre-treatment process for artificial cotton, comprising the following steps: ① singeing the surface of the fabric; ② placing the fabric in a desizing device for desizing; ③ scouring the fabric; ④ bleaching; ⑤ placing the fabric in a mercerizing machine for mercerizing;

[0014] In summary, the present invention has the following beneficial effects:

[0015] After the fabric is slightly soaked in the alkali solution, it leaves the alkali solution pool. The liquid absorption component is set to absorb the mixed liquid of the alkali solution and the slurry in the fabric, thereby preventing the alkali solution concentration from decreasing due to excessive slurry in the alkali solution pool and affecting the desizing efficiency. The concentration of the alkali solution pool can be set at a lower value without affecting the desizing efficiency, while reducing the amount of alkali solution added, which is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional schematic diagram of a desizing device in an embodiment;

[0017] Figure 2 is a cross-sectional schematic diagram of a liquid removal device in an embodiment;

[0018] Figure 3 for Figure 2 Schematic diagram of the local cross-section along the MM direction.

[0019] Figure numerals: fixed frame 1, sliding seat 2, roller 21, liquid accumulation pool body 3, rotating shaft 1 4, slide plate 41, extension portion 411, fixed shaft 5, rotating shaft 2 6, arc portion 61, plane portion 62, groove body 63, slide rail 64, movable plate 65, end portion 651, liquid absorption component 7, end surface 71, cloth 8, cylinder 9. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present embodiment discloses a desizing device and a pre-treatment process for rayon, which comprises: ① performing singeing treatment on the surface of a cloth 8; ② placing the cloth 8 in the desizing device for desizing; ③ scouring the cloth 8; ④ bleaching; ⑤ placing the cloth 8 in a mercerizing machine for mercerizing treatment.

[0022] When desizing the cloth 8, an alkali desizing method is used, and the cloth 8 is passed through an alkali solution to remove the sizing on the cloth 8. Since desizing generates a lot of waste, it does not meet environmental protection requirements. Therefore, desizing is performed multiple times to achieve the effect of energy saving and emission reduction. The desizing device in this embodiment is used for the first desizing for the best effect.

[0023] like Figure 1 , Figure 2 As shown, the desizing equipment includes a liquid removal device, and two liquid removal devices are provided. The two liquid removal devices are located on the left and right sides of the cloth 8 and are distributed up and down.

[0024] The liquid removal device includes a second rotating shaft 6, which can rotate along its own axis by being driven by a motor (not shown in the figure). The second rotating shaft 6 includes two symmetrically arranged arc portions 61 and two symmetrically arranged plane portions 62, the arc portions 61 and the plane portions 62 are both outer walls of the second rotating shaft 6, and the line connecting the two plane portions 62 forms an angle of 90 degrees with the line connecting the two arc portions 61.

[0025] like Figure 2 , Figure 3 As shown, the second rotating shaft 6 is installed with a fixed shaft 5, the fixed shaft 5 passes through the second rotating shaft 6, the fixed shaft 5 is connected to the second rotating shaft 6 through a bearing, and both ends of the fixed shaft 5 extend out of the second rotating shaft 6 and are fixed by a bracket.

[0026] like Figure 2 As shown, the arc portion 61 is fixedly mounted with a liquid absorbing component 7, which is made of sponge and is arc-shaped. The inner wall of the liquid absorbing component 7 fits the arc portion 61, and the liquid absorbing component 7 rotates with the rotating shaft 2 6. The outer wall of the liquid absorbing component 7 can abut against the cloth 8. Figure 1When the cloth 8 moves upward and passes through the outer wall of the liquid absorbing component 7, the liquid absorbing component 7 absorbs the cloth 8 to absorb the desizing alkali solution and the slurry mixed therewith. Since the slurry precipitated is the largest during the initial desizing, the effective concentration in the alkali solution is reduced, which affects the desizing efficiency. Therefore, the alkali solution needs to be increased, which does not meet the environmental protection requirements. As the cloth 8 moves upward, the cloth 8 moves upward and continues to react with the alkali solution adhered thereto, and the precipitated slurry is sucked out through the liquid absorbing component 7 to reduce the slurry mixed in the alkali solution and affect the concentration of the alkali solution.

[0027] like Figure 2 As shown, the liquid removal device also includes a fixed frame 1, and the fixed frame 1 is slidably connected to a sliding seat 2, and the sliding seat 2 can slide left and right along the inner wall of the fixed frame 1. The sliding seat 2 is equipped with a roller 21, and the roller 21 can move left and right with the sliding seat 2, and can rotate along its own axis. The roller 21 is located on the side of the rotating shaft 2 6 away from the cloth 8. The roller 21 moves to the right to press into the liquid absorbing component 7. At the same time, in conjunction with the rotation of the liquid absorbing component 7, the roller 21 presses out the liquid in the liquid absorbing component 7. A liquid accumulating pool body 3 is arranged below the fixed frame 1, and the pressed liquid can flow into the liquid accumulating pool body 3.

[0028] The liquid absorbing component 7 includes end surfaces 71 at both ends of the arc direction, and a movable plate 65 is connected between the end surface 71 and the end surface 71 of another liquid absorbing component 7, and the movable plate 65 can move left and right. Specifically, the plane portion 62 is equipped with a slide rail 64, and the slide rail 64 is equipped with a movable plate 65. Figure 2 , Figure 3 The movable plate 65 includes end portions 651 at both ends, and the end portions 651 are connected to the cylinder 9. The movable plate 65 is moved under the driving of the cylinder 9. The air pipe of the cylinder 9 is equipped with a rotating joint to prevent winding.

[0029] like Figure 2 As shown, the two ends of the movable plate 65 in the width direction are respectively connected to the end faces 71 of the two liquid-absorbing components 7. When the movable plate 65 moves, the end faces 71 are driven to move synchronously, so that the liquid-absorbing components 7 are stretched or contracted. Specifically, when one side of the liquid-absorbing component 7 abuts against the cloth 8, the two end faces 71 of the liquid-absorbing component 7 on this side move away from the cloth 8, so that the liquid-absorbing component 7 is stretched, thereby expanding the outer wall surface of the liquid-absorbing component 7 (i.e., the wall surface on the side of the cloth 8), and increasing the air gap of the small holes inside, so that it is easier to absorb the liquid on the cloth 8. At the same time, the two end faces 71 of the other liquid-absorbing component 7 are compressed by the movable plate 65, producing a water squeezing effect to improve the water squeezing efficiency.

[0030] like Figure 2 , Figure 3As shown, the liquid removal device also includes a rotating shaft 4, the cross-section of which is elliptical, and the rotating shaft 4 passes through the fixed shaft 5. Both ends of the rotating shaft 4 extend out of the fixed shaft 5 respectively. One end of the rotating shaft 4 is driven by a motor, and the other end is rotatably connected to an auxiliary support bracket. The rotating shaft 4 can rotate along its own axis.

[0031] like Figure 2 As shown, the rotating shaft 2 6 is provided with a groove body 63, one end of the groove body 63 penetrates the inner wall of the rotating shaft 2 6, and the other end penetrates the arc portion 61. The rotating shaft 2 6 is slidably connected with a slide plate 41, which is inserted into the groove body 63, and the slide plate 41 can move radially inward and outward along the rotating shaft 2 6. The slide plate 41 includes an extension portion 411, the cross section of the extension portion 411 is arc-shaped, and the extension portion 411 is located at the end of the slide plate 41 away from the rotating shaft 1 4. The extension portion 411 can extend out of the arc portion 61 to squeeze and open the liquid absorbing component 7. Specifically, the end of the slide plate 41 away from the extension portion 411 abuts against the outer wall of the rotating shaft 1 4, and the extension portion 411 abuts against the inner wall of the liquid absorbing component 7. When the rotating shaft 1 4 pushes the slide plates 41 on both sides outward, and the slide plates 41 act on the stretched liquid absorbing component 7, the extension portion 411 opens the liquid absorbing component 7, so that the air gap opening degree of the outer wall surface of the liquid absorbing component 7 is increased, thereby improving the effect of absorbing liquid. When the slide plate 41 acts on the contracted liquid absorbing component 7, the extension portion 411 cooperates with the roller 21 to squeeze the liquid absorbing component 7 to improve the water pressing efficiency.

[0032] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A desizing device, characterized in that: The liquid removal device comprises a second rotating shaft (6), the second rotating shaft (6) can rotate along its own axis, the second rotating shaft (6) comprises two symmetrically arranged arc portions (61), the arc portions (61) are provided with a liquid absorbing component (7), the liquid absorbing component (7) rotates along with the second rotating shaft (6), and the outer wall of the liquid absorbing component (7) can abut against the cloth (8); The liquid removal device further comprises a roller (21), the roller (21) being movable leftward and rightward, the roller (21) being located on the side of the second rotating shaft (6) away from the cloth (8), and the roller (21) being movable rightward to press into the liquid absorbing component (7); The liquid absorbing component (7) comprises an end surface (71), and a movable plate (65) is connected between the end surface (71) and the end surface (71) of another liquid absorbing component (7). The movable plate (65) can move left and right, and when the movable plate (65) moves, it drives the end surface (71) to move synchronously, so that the liquid absorbing component (7) is stretched or contracted.

2. A desizing device according to claim 1, characterized in that: The second rotating shaft (6) further comprises two symmetrically arranged planar portions (62), the planar portions (62) being provided with a slide rail (64), the slide rail (64) being provided with the movable plate (65), the movable plate (65) comprising end portions (651) located at both ends, the end portions (651) being connected to a cylinder (9).

3. A desizing device according to claim 1, characterized in that: It also comprises a fixed frame (1), wherein the fixed frame (1) is slidably connected to a sliding seat (2), wherein the sliding seat (2) can slide left and right along the inner wall of the fixed frame (1), and wherein the sliding seat (2) is mounted with the roller (21), and the roller (21) can rotate along its own axis.

4. A desizing device according to claim 1, characterized in that: The second rotating shaft (6) is slidably connected to a slide plate (41), and the slide plate (41) can move radially inward and outward along the second rotating shaft (6). The slide plate (41) includes an extension portion (411), and the extension portion (411) can extend out of the arc portion (61) to squeeze and open the liquid absorbing component (7).

5. A desizing device according to claim 4, characterized in that: It also includes a rotating shaft (4), the rotating shaft (4) being capable of rotating along its own axis, the outer wall of the rotating shaft (4) being in contact with the slide plate (41), the extending portion (411) being located at an end of the slide plate (41) away from the rotating shaft (4), and the extending portion (411) being in contact with the inner wall of the liquid absorbing component (7).

6. A desizing device according to claim 1, characterized in that: It also includes a fixed shaft (5), the fixed shaft (5) passes through the second rotating shaft (6), and the fixed shaft (5) is connected to the second rotating shaft (6) via a bearing.

7. A desizing device according to claim 6, characterized in that: The rotating shaft one (4) passes through the fixed shaft (5), and the cross section of the rotating shaft one (4) is elliptical.

8. A desizing device according to claim 4, characterized in that: The second rotating shaft (6) is provided with a groove body (63), and the first rotating shaft (4) passes through the groove body (63).

9. A desizing device according to claim 1, characterized in that: Two deliquidation devices are provided, and the two deliquidation devices are located on the left and right sides of the cloth (8) and are distributed up and down.

10. A pre-treatment process for artificial cotton, characterized in that: The method comprises the following steps: ① performing singeing treatment on the surface of the cloth (8); ② placing the cloth (8) in the desizing device described in any one of claims 1 to 9 for desizing; ③ boiling the cloth (8); ④ bleaching; ⑤ placing the cloth (8) in a mercerizing machine for mercerizing treatment.

Images