A method for reducing the liquid carryover in rotary printing

Abstract

The present invention belongs to the technical field of fabric dyeing and finishing equipment, and discloses a method for reducing the liquid carrying amount by rotation, including: Step 1: The conveying pressure roller assembly drives the dry fabric to be conveyed to the dipping assembly along a preset conveying path; wherein, the conveying pressure roller assembly includes a first pressure roller and a second pressure roller arranged for rolling; Step 2: After the dry fabric passes through the dipping assembly, a wet fabric after dipping is output; Step 3: The wet fabric is output after being rolled between the second pressure roller and an auxiliary rolling roller arranged for rolling with the second pressure roller; wherein, the dry fabric passes through between the first pressure roller and the second pressure roller. During rolling, the excess solution carried on the second roller will transfer the excess solution to the initially fed dry fabric through its own rotation, thereby reducing the humidity of the second roller; and further reducing the liquid carrying amount when the fabric is finally output; this equipment method can reduce the liquid carrying amount when the fabric is finally output by the method of transferring through the roller using the dry fabric during feeding, thereby improving the rolling effect and achieving the purpose of reducing the liquid carrying amount.

Description

Technical Field

[0001] The present invention relates to the technical field of fabric dyeing and finishing equipment, and particularly to a method for reducing liquid carrying amount by rotation. Background Art

[0002] During the processes of washing, continuous dyeing, and post-treatment of fabrics, it is necessary to perform a liquid squeezing operation on the water, dye liquor, or additives carried by the fabrics to reduce the liquid carrying amount of the fabrics. The liquid carrying rate (the ratio of the liquid carrying amount to the weight of the fabric) of the fabrics output by traditional squeezing devices is above 60%, resulting in relatively large energy consumption for subsequent drying, and there are also problems such as large equipment size, high energy consumption, and large water consumption. Moreover, reducing the liquid carrying amount helps to reduce quality problems such as uneven dyeing, migration, and hydrolysis during the dyeing process.

[0003] In the prior art, "a low liquid carrying amount calendar" uses a wet-dry mixed rolling method to reduce the liquid carrying amount. However, this method has an obvious uneven dyeing phenomenon, and for coarser fabrics, there will also be color streaks caused by fabric texture superposition, affecting the product quality.

[0004] At the same time, due to continuous squeezing, the fabric between the rollers will be stretched and elongated, resulting in fabric relaxation or even accumulation, affecting continuous production.

[0005] In view of this, it is necessary to improve the liquid squeezing technology in the prior art to solve the technical problem of the large liquid carrying amount of the fabric after squeezing in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to provide a method for reducing liquid carrying amount by rotation to solve the above technical problems.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A method for reducing liquid carrying amount by rotation includes:

[0009] Step 1: A conveying press roll assembly drives a dry fabric to be conveyed towards an immersion assembly along a preset conveying path; wherein, the conveying press roll assembly includes a first press roll and a second press roll arranged for rolling;

[0010] Step 2: After the dry fabric passes through the immersion assembly, a wet fabric soaked with liquid is output;

[0011] Step 3: The wet fabric is output after being squeezed between the second press roll and an auxiliary press roll arranged for rolling with the second press roll;

[0012] Wherein, the dry fabric passes through between the first press roll and the second press roll.

[0013] Optionally, step three: after the wet cloth is squeezed between the second pressure roller and the auxiliary squeezing roller arranged in squeezing relation with the second pressure roller, the output further includes:

[0014] The wet cloth soaked in liquid passes through the rolling pressure roller assembly for one-time liquid squeezing to form a wet cloth after liquid squeezing.

[0015] Wherein, the rolling pressure roller assembly includes a third pressure roller and a fourth pressure roller arranged in squeezing relation; the wet cloth soaked in liquid passes out between the third pressure roller and the fourth pressure roller.

[0016] Optionally, the second pressure roller and the third pressure roller are arranged in squeezing relation, and the auxiliary squeezing roller is the third pressure roller;

[0017] The wet cloth after liquid squeezing passes through the second pressure roller and the third pressure roller for liquid squeezing and then is output, and the wet cloth after liquid squeezing is subjected to secondary liquid squeezing;

[0018] Wherein, the solution adhered to the second pressure roller is adsorbed by the dry cloth.

[0019] Optionally, a fifth pressure roller and a sixth pressure roller are further arranged on the preset conveying path, and the fifth pressure roller is arranged in squeezing relation between the second pressure roller squeezing and the sixth pressure roller;

[0020] The conveying pressure roller assembly drives the dry cloth to be conveyed to the dipping assembly along the preset conveying path, specifically including:

[0021] The dry cloth passing out between the first pressure roller and the second pressure roller passes out between the fifth pressure roller and the sixth pressure roller.

[0022] Optionally, after the wet cloth after liquid squeezing passes through the second pressure roller and the third pressure roller for liquid squeezing and is output, and the wet cloth after liquid squeezing is subjected to secondary liquid squeezing, the subsequent steps further include:

[0023] The wet cloth after secondary liquid squeezing passes out between the second pressure roller and the fifth pressure roller.

[0024] Optionally, a seventh pressure roller and an eighth pressure roller are further arranged on the preset conveying path, and the seventh pressure roller is arranged in squeezing relation between the second pressure roller and the eighth pressure roller;

[0025] The auxiliary squeezing roller is the seventh pressure roller, wherein, the wet cloth after liquid squeezing is squeezed and then output between the second pressure roller and the seventh pressure roller.

[0026] Optionally, the conveying roller assembly includes two groups of roller units arranged opposite to each other; the roller unit includes a plurality of the first rollers and a second roller arranged to be pressed together with the plurality of the first rollers; the second rollers of two adjacent roller units are arranged to be pressed together; an output gap for squeezing liquid is formed between the second rollers of two adjacent roller units;

[0027] The auxiliary pressing roller is another second pressing roller that is pressed together with the second pressing roller; the wet cloth squeezed by the squeezing liquid is output after being squeezed by the squeezing liquid in the output gap.

[0028] Optionally, the number of the conveying roller assemblies is multiple groups;

[0029] The wet cloth squeezed by the liquid is output after being squeezed by the liquid in the output gap, specifically comprising:

[0030] The wet cloth of the squeeze liquid passes through the output gaps of the plurality of groups of conveying and pressing roller assemblies in sequence and then passes out.

[0031] Optionally, the conveying roller assembly is correspondingly provided with a frame, and the first roller and the second roller are rotatably mounted on the frame respectively;

[0032] The first pressure roller is connected to an adjustment component, and the adjustment component is used to drive the first pressure roller to move toward or away from the second pressure roller; the first guide wheel and the second guide wheel are sequentially provided on the frame along the preset conveying path; the first pressure roller is arranged between the first guide wheel and the second guide wheel.

[0033] Optionally, an elastic water-absorbing layer is respectively provided on the outer surface of the second pressing roller and / or the fifth pressing roller.

[0034] Compared with the prior art, the present invention has the following beneficial effects: when working, dry fabric is first fed, and the dry fabric is conveyed by the conveying roller assembly into a preset path, and passes through the immersion assembly to form a wet fabric immersed in liquid, and the wet fabric immersed in liquid is squeezed between the second pressing roller and the auxiliary pressing roller wheel arranged for squeezing with the second pressing roller, and then output; wherein, the wet fabric is conveyed in contact with the side of the second pressing roller away from the first pressing roller, and is squeezed between the second pressing roller and the auxiliary pressing roller wheel, and part of the solution of the wet fabric will be absorbed by the second pressing roller, so as to achieve the effect of reducing the amount of liquid in the wet fabric, thereby reducing the amount of liquid in the fabric when it is finally output; at the same time, the excess solution absorbed by the second pressing roller will transfer the excess solution to the dry fabric between the second pressing roller and the first pressing roller through its own rotation, thereby reducing the humidity of the second pressing roller, and ensuring the effect of absorbing the solution for the subsequent wet fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0036] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0037] Figure 1 One of the structural schematic diagrams of the method for reducing liquid carrying amount during rotation;

[0038] Figure 2 Another structural schematic diagram of the method for reducing liquid carrying amount during rotation;

[0039] Figure 3 The third structural schematic diagram of the method for reducing liquid carrying amount during rotation;

[0040] Figure 4 The fourth structural schematic diagram of the method for reducing liquid carrying amount during rotation;

[0041] Figure 5 The fifth structural schematic diagram of the method for reducing liquid carrying amount during rotation;

[0042] Figure 6 The sixth structural schematic diagram of the method for reducing liquid carrying amount during rotation;

[0043] Figure 7 The seventh structural schematic diagram of the method for reducing liquid carrying amount during rotation.

[0044] Illustration: Conveying pressure roller assembly 1, rolling hydraulic roller assembly 2, preset path 3, dipping assembly 4, first pressure roller 11, second pressure roller 12, third pressure roller 21, fourth pressure roller 22, frame 5, adjusting assembly 6, guide wheel 7, fifth pressure roller 13, sixth pressure roller 14, seventh pressure roller 15, eighth pressure roller, material tank 41, solution roller 42, opening 43, material tank box 44. Detailed implementation manners

[0045] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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.

[0046] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0047] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] Embodiment 1

[0049] Combination Figures 1 to 7 As shown, the present invention provides a method for reducing the amount of liquid carried by rotation, comprising:

[0050] Step 1: The conveying roller assembly 1 drives the dry cloth to be conveyed to the immersion assembly 4 along a preset conveying path; wherein the conveying roller assembly 1 includes a first pressing roller 11 and a second pressing roller 12 arranged for pressing;

[0051] Step 2: The dry cloth passes through the liquid soaking assembly 4 to form a wet cloth soaked in liquid;

[0052] Step 3: The wet fabric is squeezed between the second pressing roller 12 and the auxiliary pressing roller wheel that is pressed with the second pressing roller 12 and then output; preferably, the auxiliary pressing roller wheel is arranged on the side of the second pressing roller 12 away from the first pressing roller 11;

[0053] The wet fabric is transported against the side of the second pressing roller 12 which is away from the first pressing roller 11 .

[0054] The working principle of the present invention is as follows: During operation, dry fabric is first fed. The dry fabric is conveyed into a preset path 3 through the conveying and pressing roller assembly 1, and then passes through the dipping assembly 4 to form wet fabric with liquid. The wet fabric is output after being squeezed between the second pressing roller 12 and the auxiliary squeezing roller wheel arranged in a squeezing manner with the second pressing roller 12. Among them, the wet fabric is conveyed on the side of the second pressing roller 12 facing away from the first pressing roller 11 and is squeezed between the second pressing roller 12 and the auxiliary squeezing roller wheel. Part of the solution of the wet fabric will be absorbed by the second pressing roller 12 to reduce the liquid content of the wet fabric, thereby reducing the liquid content when the fabric is finally output. At the same time, the excess solution absorbed by the second pressing roller 12 will be transferred to the dry fabric between it and the first pressing roller 11 through its own rotation, thereby reducing the humidity of the second pressing roller 12 and ensuring the effect of absorbing the solution of the subsequent wet fabric.

[0055] In this embodiment, a rolling and pressing roller assembly 2 is further provided after the dipping assembly 4;

[0056] Among them, Step 3: The wet fabric is output after being squeezed between the second pressing roller 12 and the auxiliary squeezing roller wheel arranged in a squeezing manner with the second pressing roller 12, which specifically includes:

[0057] The wet fabric with liquid passes through the rolling and pressing roller assembly 2 to form wet fabric with squeezed liquid. The rolling and pressing roller assembly 2 includes a third pressing roller 21 and a fourth pressing roller 22 arranged in a squeezing manner;

[0058] The wet fabric with squeezed liquid passes through the conveying and pressing roller assembly 1.

[0059] Combined with Figures 1 to 7 As shown, in this solution, a rolling and pressing roller assembly 2 is also provided and is located after the dipping assembly 4. After the wet fabric is output from the dipping assembly 4, it first passes through the rolling and pressing roller assembly 2 for one-time squeezing of the fabric. The fabric passes through the rolling and pressing roller assembly 2 to form fabric with squeezed liquid, and the fabric with squeezed liquid passes through the conveying roller assembly for secondary squeezing. That is, by combining multiple squeezings, the liquid content of the wet fabric is further reduced, so that the fabric reaches a lower liquid content.

[0060] In this embodiment, combined with Figures 1 to 5 As shown, the second pressing roller 12 and the third pressing roller 21 are arranged in a squeezing manner, and the auxiliary squeezing roller wheel is the third pressing roller 21. Step 3 specifically includes:

[0061] The wet fabric with squeezed liquid passes through the second pressing roller 12 and the third pressing roller 21 for secondary squeezing of the wet fabric with squeezed liquid. Among them, the dry fabric takes away the solution adhered to the second pressing roller 12 by the wet fabric with squeezed liquid.

[0062] Further illustration: The conveying press roller assembly 1 further includes a fifth press roller 13 arranged in rolling contact with the second press roller 12, and a sixth press roller 14 arranged in rolling contact with the fifth press roller 13; a first rolling space for the fabric to pass through is formed between the fifth press roller 13 and the sixth press roller 14;

[0063] Step 1: The conveying press roller assembly 1 drives the dry fabric to be conveyed along a preset conveying path towards the dipping assembly 4; specifically including:

[0064] The dry fabric enters the conveying press roller assembly 1 from the first press roller 11 and the second press roller 12, and then passes through the first rolling space and is conveyed towards the dipping assembly 4.

[0065] Further illustration: A second rolling space for the fabric to pass through is formed between the second press roller 12 and the fifth press roller 13;

[0066] The wet fabric after squeezing passes between the second press roller 12 and the third press roller 21, and then further includes:

[0067] The wet fabric after squeezing passes through the second rolling space.

[0068] In this embodiment, as shown in Figure 6 The conveying press roller assembly 1 further includes a seventh press roller 15 arranged in rolling contact with the second press roller 12, and an eighth press roller 16 arranged in rolling contact with the seventh press roller 15; a fourth rolling space for the fabric to pass through is formed between the second press roller 12 and the seventh press roller 15; the auxiliary press roller is the seventh press roller 15; wherein, the wet fabric after squeezing is output after being squeezed between the second press roller 12 and the seventh press roller 15;

[0069] It should be noted that, as shown in Figure 6 The conveying path of the fabric is in sequence: between the first press roller 11 and the second press roller 12 → between the seventh press roller 15 and the eighth press roller 16 → the dipping assembly 4 → between the third press roller 21 and the fourth press roller 22 → the fourth rolling space;

[0070] Among them, the wet fabric is secondarily squeezed between the third press roller 21 and the fourth press roller 22 and in the fourth rolling space, further improving the squeezing effect.

[0071] In this embodiment, as shown in Figure 7 The conveying press roller assembly 1 includes two sets of first press rollers 11 and second press rollers 12 arranged oppositely; adjacent second press rollers 12 are arranged in rolling contact; an output gap for squeezing is formed between the second press rollers of adjacent two press roller units;

[0072] The auxiliary press roller is another second press roller 12 arranged in rolling contact with one second press roller 12; the wet fabric after squeezing is output after being squeezed through the output gap.

[0073] It should be further noted that the number of the conveying pressure roller assemblies 1 is multiple groups, and the multiple groups of conveying pressure roller assemblies 1 are arranged in sequence; the wet cloth for squeezing liquid passes through multiple groups of third squeezing spaces in sequence.

[0074] It should be noted that, as shown in Figure 7 the conveying path of the cloth is as follows: passing through between multiple groups of the first pressure rollers 11 and the second pressure rollers 12 in sequence → the dipping liquid assembly 4 → between the third pressure roller 21 and the fourth pressure roller 22 → the third squeezing space.

[0075] In this embodiment, the method for reducing the liquid content by rotation also includes a frame 5, and the first pressure roller 11 and the second pressure roller 12 are respectively rotatably mounted on the frame 5;

[0076] The first pressure roller 11 is connected with an adjusting assembly 6, and the adjusting assembly 6 is used to drive the first pressure roller 11 to move towards or away from the second pressure roller 12.

[0077] It should be further noted that the device also includes guide wheels 7, and the number of the guide wheels 7 is several;

[0078] The several guide wheels 7 are arranged in sequence along a preset path 3 and are used to press the cloth tightly.

[0079] The first pressure roller 11 and the second pressure roller 12 are arranged with an adjustable distance. In the working state, the cloth between the guide wheels 7 is covered on the surface of the second pressure roller 12, and the included angle between the cloth between the multiple guide wheels 7 and the second pressure roller 12 is changed by adjusting the distance between the first pressure roller 11 and the second pressure roller 12.

[0080] By changing the included angle between the cloth between the multiple guide wheels 7 and the second pressure roller 12, the contact area between the cloth and the second pressure roller 12 is adjusted. Increasing the contact area can transfer more solution carried by the second pressure roller 12 onto the cloth, and can better reduce the liquid content.

[0081] At the same time, since the cloth needs to be driven by the pressure rollers to run, the cloth will inevitably be stretched and elongated during the running process. And the path of the cloth between each pressure roller and each guide wheel 7 is fixed. If the pressure rollers are in a pressed state, the cloth between the pressure rollers will be stretched during long-term running, becoming loose or even piled up, affecting the operation.

[0082] To solve this problem, in the present invention, the first pressure roller 11 and the second pressure roller 12 are arranged with an adjustable distance, that is to say, the first pressure roller 11 and the second pressure roller 12 may not be in a pressed state, and the cloth between the first pressure roller 11 and the second pressure roller 12 is only covered on the surface of the second pressure roller 12 and can slide relative to the second pressure roller 12 (commonly known as slipping), so that the running speed of the cloth between the first pressure roller 11 and the second pressure roller 12 is not higher than the traction speed of the front pressure roller, and the cloth will not become loose or piled up, ensuring normal operation.

[0083] As a preferred solution of this embodiment, the number of the first pressing rollers 11 is multiple, and the multiple first pressing rollers 11 are arranged in a rolling manner with the second pressing roller 12 in sequence.

[0084] The fabric passes through between the multiple first pressing rollers 11 and the second pressing roller 12 in sequence and is rolled multiple times. Through multiple rollings, the solution carried on the second pressing roller 12 can be more completely transferred onto the dry fabric, further reducing the final liquid content of the fabric.

[0085] Combined Figure 3 and Figure 4 As shown, the conveying and pressing roller assembly 1 further includes a fifth pressing roller 13 arranged in a rolling manner with the second pressing roller 12, and a sixth pressing roller 14 arranged in a rolling manner;

[0086] A first rolling space for the fabric to pass through is formed between the fifth pressing roller 13 and the sixth pressing roller 14, and the first rolling space is located on the preset path 3;

[0087] A second rolling space for the fabric to pass through is formed between the second pressing roller 12 and the fifth pressing roller 13, and the second rolling space is located after the preset path 3.

[0088] During operation, the operating principle of this device is as follows:

[0089] 1. First, the dry fabric without rolled liquid enters between the first pressing roller 11 and the second pressing roller 12 under the guidance of the guide roller 7 for rolling;

[0090] 2. Then, the fabric enters between the fifth pressing roller 13 and the sixth pressing roller 14 under the guidance of the guide roller 7 for rolling;

[0091] 3. The fabric enters the material tank 41 under the guidance of the guide roller 7. The fabric is infiltrated with the solution in the material tank 41 and carries an excessive amount of solution. Under the guidance of the guide roller 7, the fabric enters between the third pressing roller 21 and the fourth pressing roller 22 for rolling. After rolling, the fabric obtains a quantitative solution;

[0092] 4. The fabric enters and is pressed between the second pressing roller 12 and the third pressing roller 21. A part of the solution in the quantitative solution carried on the fabric is adhered to the surface of the second pressing roller 12, and the quantitative solution carried on the fabric is reduced; at the same time, the solution adhered to the surface of the second pressing roller 12 is transferred onto the dry fabric between the first pressing roller 11 and the second pressing roller 12 in step 1.

[0093] 5. The fabric enters and is pressed between the second pressing roller 12 and the fifth pressing roller 13. A part of the solution in the quantitative solution carried on the fabric is adhered to the surface of the fifth pressing roller 13, and the quantitative solution carried on the fabric is further reduced; the solution adhered to the surface of the fifth pressing roller 13 is transferred onto the dry fabric between the fifth pressing roller 13 and the sixth pressing roller 14 in step 2.

[0094] 6. The fabric leaves between the second pressure roller 12 and the fifth pressure roller 13 under the guidance of the guide roller 7 and is output to the next process; continuously repeating the above steps 1-6 can obtain a continuous fabric with a low liquid content.

[0095] This solution also provides another structural method:

[0096] Among them, in combination Figure 6 As shown, in this solution, the conveying roller assembly further includes an eighth roller 16. The number of the eighth rollers 16 is two, and the two eighth rollers 16 are arranged in the preset path 3 and are located behind the dipping assembly 4.

[0097] In this embodiment, an elastic water-absorbing layer is respectively provided on the outer surfaces of the second pressure roller 12 and / or the fifth pressure roller 13.

[0098] The manufacturing method of the elastic water-absorbing layer includes:

[0099] S1. Fiber screening: The elastic water-absorbing layer includes one or a combination of materials such as nylon fiber, polyester fiber, aramid fiber, polytetrafluoroethylene fiber, polytetrafluoroethylene-coated glass fiber, graphene fiber, paper, and cotton fiber;

[0100] For nylon fiber and polyester fiber, fibers with a fineness less than 70 denier are selected;

[0101] According to different requirements, the fiber length is selected to be 3-10 cm; the lengths of the fibers required on the same roller need to be consistent;

[0102] The different types of fibers are uniformly mixed in a set weight ratio for later use.

[0103] S2. Mold manufacturing: The mold is sleeved with two circular rings, namely an inner circular ring and an outer circular ring. The inner circular ring and the outer circular ring are concentrically arranged. A bottom plate is arranged below the inner circular ring and the outer circular ring, and a pressing member is arranged above. The area between the inner circular ring and the outer circular ring, the bottom plate and the pressing member is the raw material laying area. The pipe wall of the inner circular ring is provided with an adhesive through hole, and the adhesive through hole leads to the raw material laying area.

[0104] S3. Manufacturing of the elastic water-absorbing layer: The mixed fibers are uniformly laid in the raw material laying area of the mold. Adhesive is injected into the inner part of the inner circular ring. The adhesive retreats through the through hole and enters the raw material laying area, and combines with the fibers. The excess adhesive inside the inner circular ring is removed, and it is left standing at normal temperature or in a heated state. After the adhesive is cured, it is taken out to obtain a semi-finished product of the elastic water-absorbing layer.

[0105] S4. One or more semi-finished products of the elastic water-absorbing layer are sleeved on the mandrel of the roller and fixed, and external circle processing is performed by a lathe or / and a grinder to obtain a roller with an elastic water-absorbing layer on its surface.

[0106] Since the rigidity strength of the water absorption rollers is relatively small, steel rollers or rubber-coated rollers with higher strength are arranged on the outer sides of the two water absorption rollers to press the water absorption rollers from the front and back. The pressure is transmitted from the roller surfaces of the front and back steel rollers or rubber-coated rollers to the water absorption rollers. The axis of the water absorption roller is less affected by the pressure, and the water absorption roller is not easily deformed. The pressure of the nip between the two water absorption rollers is relatively uniform. The fabric passes between the two water absorption rollers, and after being rolled, the liquid-carrying amounts of the left, middle, and right parts of the fabric are more uniform.

[0107] The fabric carrying a certain amount of moisture enters between the two water absorption rollers. Since there are gaps on the surfaces of the water absorption rollers and they have water absorption properties, in the early stage of the rolling process of the two water absorption rollers, that is, before the nip of the two water absorption rollers, the elastic water absorption layer is under positive pressure, and the gaps in the elastic water absorption layer are squeezed, and the gaps decrease. The excess moisture carried by the fabric is squeezed out. After passing the nip of the two water absorption rollers, the elasticity of the elastic water absorption layer is released, and the inside of the gaps in the elastic water absorption layer is instantly under negative pressure. This negative pressure will adsorb the fabric that has just been squeezed, thereby sucking part of the moisture still carried on the fabric surface into the gaps of the elastic water absorption layer, further reducing the liquid-carrying amount of the fabric.

[0108] Since the fabric between the first pressing roller 11 and the second pressing roller 12 is unwashed fabric and is a dry cloth without water, after the dry cloth without water is rolled by the first pressing roller 11 and the second pressing roller 12, part of the moisture in the gaps of the elastic water absorption layer on the surface of the second pressing roller 12 is taken away, reducing the moisture content in the gaps of the elastic water absorption layer on the surface of the second pressing roller 12.

[0109] Since the second pressing roller 12 rotates continuously, when it is pressed together again, the second pressing roller 12 adsorbs part of the moisture from the fabric between the second pressing roller 12 and the second pressing roller 12. In this way, the certain amount of moisture carried by the fabric is reduced, and then the above process is continuously repeated, so that the liquid-carrying amount of the finally output fabric is reduced.

[0110] In the existing process of reducing the liquid-carrying amount by dry / wet mixed rolling, the dry cloth and the wet cloth pass through the same nip at the same time, and the moisture carried by the wet cloth is redistributed into the two layers of fabric. In this process, since the two layers of fabric are in direct contact, for the fabric with a relatively rough surface, the textures of the two fabric surfaces will be imprinted on each other, resulting in the superposition of the texture patterns of the two fabric surfaces. This will cause the liquid-carrying amounts at the protruding and concave parts of the fabric surface texture to be inconsistent, and in the subsequent dyeing process, there will be a superposition pattern of the two fabric surface texture patterns, affecting the fabric surface effect.

[0111] However, the process of reducing the liquid-carrying amount by the water absorption roller rotation and water absorption in the present invention is an indirect process. The two layers of fabric are not directly pressed together, and the texture of the water absorption roller is relatively fine and will not be imprinted on the fabric surface. In the subsequent dyeing process, there will not be a superposition pattern of the two fabric surface texture patterns, and the fabric surface effect is better.

[0112] In one example, to ensure that the liquid content on the width direction of the fabric after water washing is consistent, at least the third roller 21 or / and the fourth roller 22 at the last second rolling device are rollers with adjustable crowns. By introducing hydraulic pressure or air pressure into the interior of the roller, the diameter difference between the middle and both sides of the roller is changed, and thus the uniformity of rolling can be adjusted.

[0113] Example Two:

[0114] A method for reducing the liquid content during rotary printing, which at least includes a conveying roller assembly 1 and a rolling hydraulic roller assembly 2;

[0115] A preset path 3 is formed between the conveying roller assembly 1 and the rolling hydraulic roller assembly 2, and an immersion liquid assembly 4 for immersing the fabric is provided on the preset path 3;

[0116] The conveying roller assembly 1 includes a first roller 11 and a second roller 12 arranged for rolling, and the number of the first rollers 11 is two, and the two first rollers 11 are arranged for rolling;

[0117] The rolling hydraulic roller assembly 2 includes a third roller 21 and a fourth roller 22 arranged for rolling, and the fabric sequentially passes between the first roller 11 and the second roller 12, the preset path 3, and between the two first rollers 11.

[0118] Combined with Figure 7 As shown, during operation, the fabric first enters between the first roller 11 and the second roller 12, then is conveyed along the preset path 3 and passes through the immersion liquid assembly 4 for dye immersion work, and then is rolled between the two first rollers 11. The solution carried on the first roller 11 will be absorbed by the dry fabric between the first roller 11 and the second roller 12, reducing the liquid content of the first roller 11, thereby improving the rolling effect.

[0119] In this embodiment, the number of the conveying roller assemblies 1 is multiple groups, and the multiple groups of conveying roller assemblies 1 are arranged in parallel.

[0120] The fabric passes through multiple rolling devices, and the fabric will inevitably be stretched and elongated during operation. However, the path of the fabric between the second roller 12 and each first roller 11 is fixed, and the stretched fabric will accumulate in front of the rolling device during long-term operation, affecting the operation.

[0121] The multiple groups of first rollers 11 and second rollers 12 are arranged corresponding to each other up and down. After the fabric is output from between the two first rollers 11 of the last group, it can be directly taken away and output under the action of its own gravity, so that no accumulation will occur.

[0122] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for reducing the liquid carry-over in a rotary process, characterized in that, include: Step 1: The conveying roller assembly drives the dry cloth to be conveyed to the immersion assembly along a preset conveying path; wherein the conveying roller assembly includes a first pressing roller and a second pressing roller arranged for pressing; Step 2: After the dry cloth passes through the immersion component, the wet cloth immersed in the liquid is output; Step 3: The wet fabric is squeezed between the second pressing roller and the auxiliary pressing roller wheel arranged to press the second pressing roller and then output; Wherein, the dry cloth passes through between the first pressing roller and the second pressing roller; the auxiliary pressing roller is arranged on the side of the second pressing roller away from the first pressing roller; The step three: the wet cloth is squeezed between the second pressing roller and the auxiliary pressing roller wheel arranged for pressing with the second pressing roller and then output, and further includes: The wet cloth soaked in liquid passes through the hydraulic roller assembly and is squeezed once to form the wet cloth squeezed in liquid; Wherein, the hydraulic pressure roller assembly comprises a third pressure roller and a fourth pressure roller arranged for pressing; the wet cloth soaked in liquid passes through between the third pressure roller and the fourth pressure roller; The auxiliary pressing roller is the third pressing roller; The squeezed wet fabric is squeezed between the second pressing roller and the third pressing roller and then output, and the squeezed wet fabric is squeezed a second time; The solution adhered to the second pressing roller is absorbed by the dry cloth.

2. The method for reducing the liquid-carrying amount during rotation according to claim 1, wherein A fifth pressing roller and a sixth pressing roller are also provided on the preset conveying path, and the fifth pressing roller is press-rolled between the second pressing roller and the sixth pressing roller; The conveying roller assembly drives the dry cloth to be conveyed to the immersion assembly along a preset conveying path, specifically comprising: The dry cloth passing through between the first pressing roller and the second pressing roller passes through between the fifth pressing roller and the sixth pressing roller.

3. The method for reducing the liquid carrying amount during rotation according to claim 2, characterized in that, The squeezed wet fabric is squeezed between the second pressing roller and the third pressing roller and then output, and the squeezed wet fabric is squeezed for the second time, and then the method further includes: The wet cloth after the secondary squeezing passes through between the second pressing roller and the fifth pressing roller.

4. The method for reducing the liquid-carrying amount during rotation according to claim 1, characterized in that A seventh pressing roller and an eighth pressing roller are also arranged on the preset conveying path, and the seventh pressing roller is arranged between the second pressing roller and the eighth pressing roller for pressing; The auxiliary pressing roller is the seventh pressing roller, wherein the wet cloth of the pressing liquid is pressed between the second pressing roller and the seventh pressing roller and then output.

5. The method for reducing the liquid carrying amount during rotation according to claim 1, wherein The conveying roller assembly comprises two groups of roller units arranged opposite to each other; the roller units comprise a plurality of the first rollers and a second roller arranged to be pressed together with the plurality of the first rollers; the second rollers of two adjacent roller units are arranged to be pressed together; an output gap for squeezing liquid is formed between the second rollers of two adjacent roller units; The auxiliary pressing roller is another second pressing roller that is pressed together with the second pressing roller; the wet cloth squeezed by the squeezing liquid is output after being squeezed by the squeezing liquid in the output gap.

6. The method for reducing the liquid carrying amount during rotation according to claim 5, wherein The number of the conveying roller assemblies is multiple groups; The wet cloth squeezed by the liquid is output after being squeezed by the liquid in the output gap, specifically comprising: The wet cloth of the squeeze liquid passes through the output gaps of the plurality of groups of conveying and pressing roller assemblies in sequence and then passes out.

7. The method for reducing the liquid carrying amount during rotation according to claim 1, characterized in that, The conveying pressure roller assembly is correspondingly provided with a frame, and the first pressure roller and the second pressure roller are respectively rotatably mounted on the frame; The first pressure roller is connected with an adjusting assembly, and the adjusting assembly is used to drive the first pressure roller to move towards or away from the second pressure roller; a first guide wheel and a second guide wheel are sequentially arranged on the frame along the preset conveying path; the first pressure roller is arranged between the first guide wheel and the second guide wheel.

8. The method for reducing the liquid-carrying amount during rotation according to claim 2, wherein An elastic water-absorbing layer is respectively provided on the outer surfaces of the second pressure roller and / or the fifth pressure roller.

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