A low liquid volume padder

Abstract

The embodiment of the present invention discloses a low liquid-carrying roller, which is used to solve the technical problem that the liquid-carrying amount of the cloth after the pressing is too high in the existing pressing method for cloth dyeing. The embodiment of the present invention includes a guide wheel device, a pressing device, and a material trough; the material trough is arranged on the inner side of the frame and is located below the pressing device; the pressing device is arranged on the frame, and the pressing device at least includes a first roller, a second roller, and a third roller that press each other; the guide wheel device at least includes a first guide wheel, a second guide wheel, a third guide wheel, a fourth guide wheel, and a fifth guide wheel that are arranged on the frame in sequence; the first guide wheel is arranged between the cloth sending device and the pressing device; the second guide wheel is arranged on the discharge side of the third roller; the fifth guide wheel is arranged on the feed side of the first roller and the material trough; the second guide wheel, the third guide wheel, the fourth guide wheel, the fifth guide wheel, the first roller, the second roller, and the third roller form a closed loop structure, and the first guide wheel and the cloth sending device are arranged in the closed loop structure.

Description

Technical Field

[0001] The invention relates to the technical field of textile printing and dyeing, in particular to a low liquid-carrying padder. Background Art

[0002] In the traditional hot-melt dyeing process of textiles, the dye liquid needs to be rolled on the fabric, and then the fabric with dye liquid is heated and dried to sublimate and fix the color. There are many traditional rolling methods, such as uniform rolling car and heavy-load rolling car, which can well roll the fabric soaked with dye liquid evenly. However, no matter which rolling method is used, there is a problem that the amount of liquid on the fabric after rolling is too high. If the amount of liquid on the fabric is too high, more heat energy is required to dry the moisture carried by the fabric in the subsequent drying process, resulting in large equipment investment, large equipment footprint, high energy consumption, high operating costs and other problems. Too much liquid can also easily cause the problem of dye migration during the drying process, affecting the quality of the finished product.

[0003] Therefore, in order to solve the above-mentioned technical problems, finding a low-liquid-carrying padder has become an important topic studied by those skilled in the art. Summary of the invention

[0004] The embodiment of the present invention discloses a low liquid-carrying padder, which is used to solve the technical problem that the liquid-carrying amount of the cloth after the pressing is relatively high in the existing pressing method for cloth dyeing.

[0005] The embodiment of the present invention provides a low-liquid-carrying padder, comprising a frame, a material distribution device, a guide wheel device, a pressing device, a material trough, a pressure device and a power device;

[0006] The material trough is arranged inside the frame and below the pressing device, and liquid dye or functional coating is arranged in the material trough;

[0007] The pressing device is arranged on the frame, and the pressing device at least comprises a first roller, a second roller, and a third roller, wherein the first roller, the second roller, and the third roller are arranged in sequence and are pressed and pressed in sequence; the first roller, the second roller, and the third roller are all connected to the power device, and are pressed or separated in sequence by the pressure provided by the pressure device;

[0008] The guide wheel device at least includes a first guide wheel, a second guide wheel, a third guide wheel, a fourth guide wheel, and a fifth guide wheel; the first guide wheel, the second guide wheel, the third guide wheel, the fourth guide wheel, and the fifth guide wheel are sequentially arranged on the frame, and the first guide wheel is arranged between the cloth sending device and the pressing device; the first guide wheel is used to guide the cloth between the second roller and the third roller; the second guide wheel is arranged on the discharge side of the third roller; the second guide wheel is used to guide the cloth to be folded to the third guide wheel, the fourth guide wheel, and the fifth guide wheel; the fifth guide wheel is arranged on the feed side of the first roller and the material trough; the fifth guide wheel is used to guide the cloth into the material trough and / or guide the cloth into between the first roller and the second roller; a closed loop structure is formed between the second guide wheel, the third guide wheel, the fourth guide wheel, the fifth guide wheel, the first roller, the second roller, and the third roller, and the first guide wheel and the cloth sending device are arranged in the closed loop structure.

[0009] Optionally, the guide wheel device further includes a sixth guide wheel;

[0010] The sixth guide wheel is arranged inside the material trough; the sixth guide wheel is located below between the first roller and the second roller, and is used to guide the cloth from the material trough into between the first roller and the second roller.

[0011] Optionally, the material trough is further provided with a spraying device;

[0012] The spray device includes a spray part, a pipeline connected to the spray part, a valve, a pump and a filter device;

[0013] The spraying part is a spray pipe or a spray head;

[0014] The spraying part is arranged above the pressing device, and the spray pipe or nozzle, material tank, pipeline, valve, material pump and filtering device form a circulation structure for the dye liquid to flow;

[0015] Optionally, the rolling device further comprises a fifth roller;

[0016] The fifth roller is arranged on a side of the third roller away from the second roller;

[0017] A conveyor belt for transmitting cloth is arranged on the periphery of the fifth roller; a plurality of pressing wheels are arranged on the periphery of the conveyor belt; and the conveyor belt is pressed against the outer wall of the fifth roller; the first roller, the second roller, the third roller and the fifth roller are pressed against each other in sequence.

[0018] Optionally, a first heating device is arranged between the second guide wheel and the third guide wheel and / or between the third guide wheel and the fourth guide wheel, and the first heating device is arranged on the frame. The first heating device is a heating oven or a heating roller, and a traction wheel device and / or a conveyor belt device is arranged in the heating oven.

[0019] Optionally, the first roller is rotatably fixed on the frame, and the first roller, the second roller and the third roller are arranged in sequence from bottom to top in the vertical direction; the pressure device is provided at the axial end of the third roller, and the first roller, the second roller and the third roller are pressed against each other in sequence in the vertical direction.

[0020] Optionally, the second roller is rotatably fixed on the frame, and the first roller, the second roller and the third roller are arranged in an L shape on the frame; the shaft ends of the first roller and the third roller are provided with the pressure device, and the first roller, the second roller and the third roller press each other in sequence.

[0021] Optionally, the discharge end of the pressing device is provided with a second heating device and a finished product collecting device in sequence; the second heating device is a heating wheel type heating device and / or an oven type heating device; the oven type heating device is provided with a conveying guide wheel or a conveyor belt device or a needle plate type stretching and setting machine device.

[0022] Optionally, among the first roller, the second roller and the third roller, at least one roller is a negative pressure microporous water-permeable roller, the outer wall of the negative pressure microporous water-permeable roller is provided with a plurality of water-permeable micropores and is covered with a water-permeable coating layer, and mutually interconnected water-passing grooves are provided between every two adjacent water-permeable micropores; the water-permeable micropores are connected with the inner cavity of the third roller; a through hole is provided at the center of at least one of the axial ends of the third roller, the through hole is connected with the inner cavity of the third roller, the through hole is connected with a rotating joint, and the rotating joint is connected with a negative pressure suction device.

[0023] Optionally, the water-permeable covering layer is a water-permeable fiber cloth or a rubber-plastic elastomer.

[0024] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0025] In this embodiment, the cloth first enters between the second roller and the third roller from the first guide wheel, and then passes through the second guide wheel, the third guide wheel, the fourth guide wheel, and the fifth guide wheel in sequence. After passing through the material trough from the fifth guide wheel, the cloth is immersed in the dye solution. After being pressed between the first roller and the second roller, a certain amount of dye solution is obtained on the cloth. As the first roller, the second roller, and the third roller continue to operate, the cloth enters between the second roller and the third roller again and is pressed again by the second roller and the third roller. At this time, the dye solution is secondary distributed, and a part of it is transferred to the cloth conveyed from the first guide wheel. Finally, the amount of liquid carried by the cloth output from the third roller to the next process is reduced. In such a continuous operation, the cloth has been pressed and distributed for at least three times and three times by dye solution immersion. Not only is the amount of liquid carried by the cloth low, but the amount of liquid carried by the cloth is more uniform, and the dye solution can better penetrate into the interior of the cloth. Moreover, the first roller, the second roller and the third roller are arranged in an integrated manner, which not only makes it easy to control the tension between the three rolling operations and ensures the quality of the product, but also simplifies the process flow, saves space, saves power and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A schematic structural diagram of a first embodiment and an eighth embodiment of a low-liquid-carrying padder provided by the present invention;

[0028] Figure 2 A schematic structural diagram of a second embodiment of a low-liquid-carrying padder provided by the present invention;

[0029] Figure 3 A schematic structural diagram of a first heating device for a low-liquid-carrying padder provided by the present invention;

[0030] Figure 4 Another structural schematic diagram of a low-liquid-carrying padder provided by the present invention after a first heating device is installed;

[0031] Figure 5 A schematic structural diagram of a fifth embodiment of a low-liquid-carrying padder provided by the present invention;

[0032] Figure 6 A schematic structural diagram of a third embodiment of a low-liquid-carrying padder provided by the present invention;

[0033] Figure 7A schematic structural diagram of a fourth embodiment of a low-liquid-carrying padder provided by the present invention;

[0034] Figure 8 A schematic structural diagram of a roller in a low-liquid-carrying padder provided by the present invention;

[0035] Fig. 9 A structural cross-sectional view of a roller in a low-liquid-carrying padder provided by the present invention;

[0036] Illustrations: first roller 1; second roller 2; third roller 3; first guide wheel 4; second guide wheel 5; third guide wheel 6; fourth guide wheel 7; fifth guide wheel 8; sixth guide wheel 9; cloth sending device 10; material trough 11; cloth 12; second heating device 13; finished product collecting device 14; fourth roller 15; fifth roller 16; conveyor belt 17; pressure wheel 18; first heating device 19; water-permeable micropores 20; shaft end 21; rotary joint 22; through hole 23; impregnation wheel 24. DETAILED DESCRIPTION

[0037] The embodiment of the present invention discloses a low liquid-carrying padder, which is used to solve the technical problem that the liquid-carrying amount of the cloth after the pressing is relatively high in the existing pressing method for cloth dyeing.

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] Example 1

[0040] See also Figure 1 The rolling machine in this embodiment includes a frame, a cloth sending device 10, a guide wheel device, a pressing device, a material trough 11, a pressure device and a power device;

[0041] The material trough 11 is arranged inside the frame and below the pressing device, and liquid dye or functional coating is arranged in the material trough 11 .

[0042] The rolling device is arranged on the frame, and the rolling device at least comprises a first rolling roller 1, a second rolling roller 2, and a third rolling roller 3, wherein the first rolling roller 1, the second rolling roller 2, and the third rolling roller 3 are arranged in sequence and press each other; the first rolling roller 1, the second rolling roller 2, and the third rolling roller 3 are all connected to the power device, and are pressed together or separated in sequence by the pressure provided by the pressure device;

[0043] The guide wheel device at least includes a first guide wheel 4, a second guide wheel 5, a third guide wheel 6, a fourth guide wheel 7, and a fifth guide wheel 8; the first guide wheel 4, the second guide wheel 5, the third guide wheel 6, the fourth guide wheel 7, and the fifth guide wheel 8 are sequentially arranged on the frame, the first guide wheel 4 is arranged between the cloth sending device 10 and the pressing device; the first guide wheel 4 is used to guide the cloth 12 between the second roller 2 and the third roller 3; the second guide wheel 5 is arranged on the discharge side of the third roller 3; the second guide wheel 5 is used to guide the cloth 12 to be folded The third guide wheel 6, the fourth guide wheel 7, and the fifth guide wheel 8; the fifth guide wheel 8 is arranged on the feeding side of the first roller 1 and the material trough 11; the fifth guide wheel 8 is used to guide the cloth 12 into the material trough 11 and / or guide the cloth 12 into between the first roller 1 and the second roller 2; the second guide wheel 5, the third guide wheel 6, the fourth guide wheel 7, the fifth guide wheel 8, the first roller 1, the second roller 2, and the third roller 3 form a closed loop structure, and the first guide wheel 4 and the cloth sending device 10 are arranged in the closed loop structure.

[0044] In this embodiment, the cloth 12 first enters between the second roller 2 and the third roller 3 from the first guide wheel 4, and then the cloth 12 passes through the second guide wheel 5, the third guide wheel 6, the fourth guide wheel 7, and the fifth guide wheel 8 in sequence. After passing through the material trough 11 from the fifth guide wheel 8, the cloth 12 is immersed in the dye solution. After being pressed between the first roller 1 and the second roller 2, a certain amount of dye solution is obtained on the cloth 12. As the first roller 1, the second roller 2 and the third roller 3 continue to operate, the cloth 12 enters between the second roller 2 and the third roller 3 again, and is pressed again by the second roller 2 and the third roller 3. At this time, the dye solution is redistributed, and a part of it is transferred to the cloth 12 conveyed from the first guide wheel 4. Finally, the amount of dye carried by the cloth 12 output from the third roller 3 to the next process is reduced. In such a continuous operation, the fabric 12 has been subjected to at least three times of pressing and three times of dye liquor dipping and distribution, not only the amount of liquid carried by the fabric 12 is low, the amount of liquid carried by the fabric 12 is more uniform, and the dye liquor can better penetrate into the interior of the fabric 12. In addition, the first roller 1, the second roller 2, and the third roller are arranged in an integrated manner, not only the tension between the three pressings is easy to control, the quality of the product is reliable, and the process flow is simple, space saving, power saving, and easy to operate.

[0045] It should be noted that the cloth 12 has undergone multiple pressing and heating operations. On the one hand, the heating process has the effect of multiple heating and drying of moisture. At the same time, since multiple layers of cloth are stacked and attached together and heated, under the action of high-temperature water vapor and additives, the cloth 12 is also evaporated multiple times to a certain extent. According to the same principle, four or more pressing and heating and steaming operations can be performed, so that a certain amount of dye solution can be distributed to more layers of cloth, further reducing the amount of dye solution carried by each layer of cloth 12. At the same time, multiple pressing, heating, drying and steaming operations allow the dye to better combine with the fibers in the cloth 12.

[0046] Furthermore, the guide wheel device in this embodiment further includes a sixth guide wheel 9, wherein the sixth guide wheel 9 is arranged inside the trough 11, specifically, the sixth guide wheel 9 is located below the first roller 1 and the second roller 2;

[0047] It should be noted that the sixth guide wheel 9 mainly guides the cloth 12 from the material trough 11 to enter between the first roller 1 and the second roller 2 .

[0048] Furthermore, the rolling mill in this embodiment also includes a spray device;

[0049] The spray device includes a spray part, a pipe connected to the spray part, a valve, a pump and a filter device;

[0050] The spraying part is a spray pipe or a spray head;

[0051] The spraying part is arranged above the pressing device, and the spray pipe or nozzle, the material tank 11, the pipeline, the valve, the material pump, and the filtering device form a circulation structure for the dye liquid to flow;

[0052] The material trough 11 is movably disposed below the first roller 1 and the second roller 2, and the nozzle or the nozzle is disposed above the pressing device.

[0053] It should be noted that the spray device can directly spray the dye solution in the material tank 11 onto the surface of the cloth 12 through the spray part, so that the dye can be evenly attached to the surface of the cloth 12, making the dyeing effect of the cloth 12 more ideal. Furthermore, the filter device in the spray device can filter the impurities in the material tank 11 to prevent the impurities from being sprayed onto the surface of the cloth 12 through the spray part, causing the quality of the cloth 12 to be affected.

[0054] Furthermore, the material trough 11 or the spraying device is also provided with an ultrasonic oscillating device, through the cavitation oscillation effect of the ultrasonic oscillating device, the air between the gaps of the cloth is eliminated and the dye or paint is evenly distributed.

[0055] It should be noted that the ultrasonic oscillation device includes an ultrasonic generator, an amp, a transducer and a vibrator; the amp is connected to the ultrasonic generator, the amp amplifies or reduces the amplitude of the ultrasonic generator and transmits it to the transducer, the piezoelectric ceramics in the transducer can convert electrical energy into mechanical energy of vibration, and then the vibrator transmits the vibration to the dye solution.

[0056] The ultrasonic frequency of the ultrasonic oscillator is between 20-80KHz. The input power of each set of ultrasonic vibration devices is between 0.5-5KW.

[0057] For further information, see Figures 2 to 4In this embodiment, a first heating device 19 is provided between the second guide wheel 5 and the third guide wheel 6 and / or between the third guide wheel 6 and the fourth guide wheel 7. The first heating device 19 is provided on the frame. The first heating device 19 is a heating oven or a heating roller.

[0058] It should be noted that Figure 2 The first heating device 19 is a heating oven, Figure 3 and Figure 4 The first heating device is a heating roller;

[0059] It should be noted that a traction wheel device and / or a conveyor belt device is provided in the heating oven, and the heating roller is a single-layer or double-layer design of electric heating, thermal oil heating or steam heating. The cloth 12 conveyed from the second guide wheel 5 is heated and dried by the first heating device 19.

[0060] Example 2

[0061] See also Figure 2 The rolling device in the rolling car of this embodiment further includes a fifth rolling roller 16;

[0062] The fifth roller 16 is arranged on a side of the third roller 3 away from the second roller 2;

[0063] A conveyor belt 17 for conveying the cloth 12 is arranged on the periphery of the fifth roller 16; a plurality of pressing wheels 18 are arranged between the conveyor belt 17 and the roller, and are pressed against the outer wall of the fifth roller 16;

[0064] The first roller 1, the second roller 2, the third roller 3 and the fifth roller 16 are arranged to press each other in sequence.

[0065] Furthermore, the rolling device in this embodiment also includes a fourth roller, which is arranged between the fifth roller and the third roller, and the first roller 1, the second roller 2, the third roller 3, the fourth roller 15 and the fifth roller 16 are arranged to roll with each other in sequence.

[0066] It should be noted that the cloth 12 enters the fourth roller 15 and the fifth roller 16 in sequence after passing through the third roller 3. When the cloth 12 is wrapped around the outside of the fifth roller 16, the pressure wheel 18 presses the cloth 12 on the fifth roller 16 to further make the amount of liquid on the cloth 12 more uniform. Finally, the cloth 12 is transported outside the roller via the conveyor belt 17.

[0067] Example 3

[0068] See also Figure 6The first roller 1 in the rolling mill of this embodiment is rotatably fixed on the frame, and the first roller 1, the second roller 2, and the third roller 3 are arranged in sequence from bottom to top in the vertical direction; the shaft end 21 of the third roller 3 is provided with a pressure device, and the first roller 1, the second roller 2, and the third roller 3 are pressed against each other in sequence in the vertical direction.

[0069] It should be noted that the first roller 1, the second roller 2 and the third roller 3 may be arranged in sequence in the horizontal direction, in sequence in the vertical direction or in sequence in an inclined manner.

[0070] Example 4

[0071] See also Figure 7 The second roller 2 in the rolling mill of this embodiment is rotatably fixed on the frame, and the first roller 1, the second roller 2, and the third roller 3 are arranged on the frame in an L shape; the shaft ends 21 of the first roller 1 and the third roller 3 are provided with pressure devices, and the first roller 1, the second roller 2, and the third roller 3 press each other in sequence.

[0072] It should be noted that, in addition to the first roller 1, the second roller 2, and the third roller 3 being arranged in sequence in the horizontal direction or the vertical direction, an L-shaped arrangement as in this embodiment may also be adopted.

[0073] Example 5

[0074] See also Figure 5 The discharge end of the pressing device of this embodiment is provided with a second heating device 13 and a finished product collecting device 14 in sequence; the second heating device is a heating wheel type heating device and / or an oven type heating device; the oven type heating device is provided with a conveying guide wheel or a conveying belt device or a needle plate type stenter setting machine device.

[0075] It should be noted that the oven-type heating device is arranged between the pressing device and the heating wheel-type heating device, and the oven-type heating device is provided with a conveying guide wheel or a pin plate type stenter setting device. The cloth 12 drawn from the rolling car is heated and dried under low temperature conditions by the oven-type heating device, and the dye attached to the cloth 12 is heated at high temperature by the heating wheel-type heating device. The high temperature causes the fibers of the cloth 12 to melt and swell, so that the dye molecules are easily combined with the fibers of the cloth 12.

[0076] Of course, it is also possible to only use an oven-type heating device to heat the cloth 12. The cloth 12 is then dried by low-temperature heating at the front end of the oven-type heating device and melted and swelled by high-temperature heating at the rear end of the oven-type heating device. At the same time, the dye is also heated at high temperature at the rear end of the oven-type heating device. At this time, the dye is fully combined with the fibers of the cloth 12 and develops color.

[0077] Alternatively, only a heating wheel type heating device may be used, wherein one or more heating wheels dry and heat the cloth 12 conveyed from the padder at a high temperature, so that the dye is fully combined with the fibers of the cloth 12 and develops color.

[0078] The second heating device 13 is a multi-heating wheel heating device, which is composed of at least two heating wheels. The cloth 12 enters the multi-heating wheel heating device after being output from the padder, and is successively wrapped around the surfaces of multiple heating wheels, heated and dried by the heating wheels and colored, and then collected as finished products by the finished product collection device 14. Preferably, the heating wheel at the front end of the process flow is low-temperature heating, and the heating wheel at the rear end of the process flow is high-temperature heating.

[0079] The second heating device 13 can also be a large-diameter heating wheel, and the outer circle of the large-diameter heating wheel is provided with a conveyor belt device, and the conveyor belt device is one of a circular silicone belt, a Teflon belt, a stainless steel belt, etc. After the cloth 12 is output from the padder, it enters the second heating device 13 and is wrapped between the large-diameter heating wheel and the conveyor belt. Since the dye liquid carried by the cloth 12 after being output from the padder contains water, dye and auxiliaries, the cloth 12, water, dye and auxiliaries are heated at high temperature between the large-diameter heating wheel and the conveyor belt, and the fibers of the cloth 12 are melted and swelled by the high temperature. The water and auxiliaries have a plasticizing effect on the fibers of the cloth 12 under high temperature conditions, and the kinetic energy of the cloth 12 fiber molecules, dye molecules, water molecules, and auxiliaries molecules under high temperature conditions is enhanced, which is conducive to the combination between the dye molecules and the cloth 12 fiber molecules. The conveyor belt not only plays a role in transportation, but also plays a role in heat preservation. More importantly, due to the covering of the conveyor belt, water vapor, dyes, and additives cannot escape to the outside of the conveyor belt after being heated, and are confined between the large-diameter heating wheel and the conveyor belt, so that the fibers of the cloth 12 can fully contact, react, and combine with the high-temperature water vapor, dyes, and additives.

[0080] Furthermore, the rolling mill in this embodiment is provided with one or more of a tension control device, an unfolding device, an electrostatic elimination device, etc. at the first guide wheel 4 and / or the fifth guide wheel 8 or / and before the entrance of the heating device or / and the product collecting device, and the unfolding device is one or more of an arc unfolding device, an aluminum sheet unfolding device, a spiral unfolding device, etc.;

[0081] One or more of a deviation correcting device, a warping device, a weft correcting device, a tension control device, etc. are arranged between the cloth sending device 10 and the first guide wheel 4.

[0082] It should be noted that after the cloth 12 comes out from the discharge end of the third roller 3, it enters the oven-type heating device, which is provided with a conveying guide wheel or a pin-plate stenter setting device;

[0083] The oven-type heating device is provided with a heat source device, a heat exchanger, an air supply fan, an exhaust fan, an air duct, an air exhaust and other devices, and the heat source device is a natural gas burner or thermal oil, a steam boiler or an electric heater, etc.; the oven-type heating device is used to dry the moisture carried by the cloth 12 at a low temperature;

[0084] After being output from the oven-type heating device, the cloth 12 enters the heating wheel-type heating device, which is one or more heating wheels, and the heating wheels are one or more of electric heating, steam, and thermal oil heating. The cloth 12 is heated by the heating wheel-type heating device at high temperature, and the fibers of the cloth 12 are melted and expanded by the high temperature. At the same time, the dye is combined with the fiber tissue of the cloth 12 after being heated at high temperature and develops color.

[0085] Furthermore, after the cloth 12 is output from the second heating device 13, it enters the cooling device, which is a cooling wheel water cooling or a cooling fan air cooling device, preferably a cooling fan air cooling. While air cooling, the dye remaining on the surface of the cloth 12 is blown away from the surface of the cloth 12, and the exhaust gas is extracted by the exhaust device, and then the cloth 12 is collected as a finished product by the finished product collecting device 14.

[0086] Furthermore, the cloth 12 is finally collected as a finished product by a finished product collecting device 14 , and the finished product collecting device 14 is a swing arm type cloth dropping device or an axle type cloth 12 winding device.

[0087] Example 6

[0088] See also Figure 8 and Fig. 9 Among the first roller 1, the second roller 2 and the third roller 3 in the rolling mill of this embodiment, at least the third roller 3 is a negative pressure microporous water-permeable roller, the outer wall of the third roller 3 is coated with a water-permeable coating layer, a plurality of water-permeable micropores 20 are arranged on the outer wall of the third roller 3, and a water-passing groove interconnected with each other is arranged between every two adjacent water-permeable micropores 20, and the water-permeable micropores 20 are connected with the inner cavity of the third roller 3; a through hole 23 is arranged at the center of at least one of the axial ends 21 of the third roller 3, and the through hole 23 is connected with the inner cavity of the third roller 3, and a flow channel for slurry is formed between the micropores, the inner cavity of the pressure wheel 18, the through hole 23 and the rotary joint 22, the through hole 23 is connected with the rotary joint 22, and the rotary joint 22 is connected with a negative pressure suction device.

[0089] Furthermore, the water-permeable coating layer is made of water-permeable fiber, paper, cotton, linen, plush, cloth or rubber-plastic elastomer to prevent the surface of the roller from being damaged during continuous operation.

[0090] It should be noted that the fabric 12 passes between two adjacent rollers. When the rollers are pressed together, the excess dye or slurry is pressed out of the fabric 12 by the rollers, sucked by negative pressure to the negative pressure suction device through the circulation channel, and then transported to the material tank 11 through the pipeline, which can effectively reduce the amount of liquid carried by the fabric 12 after being pressed. Furthermore, the design of the water-passing groove interconnects two or more adjacent permeable micropores 20 to avoid affecting product quality due to blockage of the permeable micropores 20.

[0091] Furthermore, the circulation channel between the shaft end 21 of the roller and the inner cavity of the roller is designed to be conical or hemispherical, so as to facilitate the slurry to flow from the inner cavity of the pressing wheel 18 to the rotary joint 22.

[0092] Example 7

[0093] At least two rollers in the rolling device in this embodiment are adjustable center-height pressing wheels 18, which are commonly known as uniform pressing wheels 18. A plurality of chambers are provided in the inner cavity of the pressing wheel 18. Hydraulic oil is introduced into the chambers through an external hydraulic device. The outer diameter of the pressing wheel 18 is adjusted according to the pressure provided by the hydraulic oil as needed.

[0094] Alternatively, the inner cavity of the pressing wheel 18 is provided with mutually matching conical sliders, and the outer diameter of the pressing wheel 18 is adjusted by adjusting the relative position of the conical sliders through an external screw.

[0095] Example 8

[0096] See also Figure 1 In order to make the amount of liquid on the cloth 12 before rolling more uniform, a plurality of impregnation wheels 24 are arranged in the trough 11, and the plurality of impregnation wheels 24 are arranged for rolling in sequence from bottom to top. Preferably, in order to prevent the cloth 12 from being stretched and deformed during the impregnation process, the shaft end of the impregnation wheel 24 at the bottom is connected to a power device, and the shaft end passes through the side wall of the trough 11, and is rotatably connected to the side wall of the trough 11 through a bearing provided with a sealing device, the power device is connected to the outside of the side wall of the trough 11, and the remaining impregnation wheels 24 transmit power through the friction of the wheel surface. Furthermore, in order to facilitate the cleaning of the trough 11, the shaft end is rotatably connected to the side wall of the frame at the same time, the power device is connected to the frame, and the trough 11 is rotatably arranged on the inner side of the frame with the axis of the shaft end as the center line.

[0097] The cloth 12 is guided into the material trough 11 by the cloth guide wheel device, passes through the impregnation wheels 24 from bottom to top, is squeezed by each impregnation wheel 24 in turn, and then guided by the cloth guide wheel device into between the first roller 1 and the second roller 2 for the pressing operation.

[0098] Application Examples

[0099] See also Figure 1 This application example provides a dyeing method for the padder, comprising the following steps:

[0100] 1. The cloth 12 is output from the cloth sending device 10, sent between the second roller 2 and the third roller 3 through the first guide wheel 4, and wrapped around the outer circle of the third roller 3.

[0101] 2. The cloth 12 is led out from the discharge side of the third roller 3, passes through the second guide wheel 5, the third guide wheel 6, the fourth guide wheel, and the fifth guide wheel 8 in sequence, enters the material trough 11, and is immersed in the dye solution;

[0102] The cloth 12 is heated and dried for the first time by the first heating device 19 arranged between the second guide wheel 5 and the third guide wheel 6 and / or between the third guide wheel 6 and the fourth guide wheel 7.

[0103] 3. Introduce the cloth 12 from the material trough 11 into between the first roller 1 and the second roller 2, and then wrap the cloth 12 around the outer circle of the second roller 2.

[0104] 4. The cloth 12 is passed between the second roller 2 and the third roller 3, and is wrapped around the outer surface of the cloth 12 on the outer circle of the third roller 3 in step 1. The cloth 12 then leaves the roller from the discharge side of the third roller 3 and is introduced into the second heating device 13. The cloth 12 led out of the roller is heated and dried for the second time by the second heating device 13, and the fibers of the cloth 12 are fully combined with the dye under high temperature conditions.

[0105] 5. The finished products are collected by the finished product collecting device 14.

[0106] In this application example, the cloth 12 first enters between the second roller 2 and the third roller 3 from the first guide wheel 4, and then the cloth 12 passes through the second guide wheel 5, the third guide wheel 6, the fourth guide wheel 7, and the fifth guide wheel 8 in sequence. After passing through the material trough 11 from the fifth guide wheel 8, the cloth 12 is immersed in the dye solution. After being pressed between the first roller 1 and the second roller 2, a certain amount of dye solution is obtained on the cloth 12. As the first roller 1, the second roller 2 and the third roller 3 continue to operate, the cloth 12 enters between the second roller 2 and the third roller 3 again, and is pressed again by the second roller 2 and the third roller 3. At this time, the dye solution is redistributed, and a part of it is transferred to the cloth 12 conveyed from the first guide wheel 4. Finally, the amount of dye on the cloth 12 output from the third roller 3 to the next process is reduced. In such a continuous operation, the fabric 12 has been subjected to at least three times of pressing and three times of dye liquor dipping and distribution, not only the amount of liquid carried by the fabric 12 is low, the amount of liquid carried by the fabric 12 is more uniform, and the dye liquor can better penetrate into the interior of the fabric 12. In addition, the first roller 1, the second roller 2, and the third roller are arranged in an integrated manner, not only the tension between the three pressings is easy to control, the quality of the product is reliable, and the process flow is simple, space saving, power saving, and easy to operate.

[0107] It should be noted that the fabric sending device 10 also includes a deviation correction device, which includes a fabric edge detection device, a control device and an execution device. The fabric edge detection device is a travel switch or a photoelectric sensor switch. The fabric edge detection device is electrically connected to the control device. The execution device includes a power device, a deviation correction device and a fixing device thereof, etc. The power device is fixed on the frame and connected to the fixing device of the deviation correction device.

[0108] An exhaust device is provided at the outlet of the first heating device 19. The exhaust device is composed of a fan and a pipeline, etc. The fan is connected to the pipeline to extract the dye and waste gas that are not completely absorbed by the cloth.

[0109] The exhaust device is also provided with a dust filtering device, and the dust filtering device is detachably mounted on the exhaust device.

[0110] Furthermore, a switchable inspection door panel is provided at the entrance and / or the exit of the first heating device 19. The inspection door panel is opened during operation or inspection, and closed during normal operation, so as to facilitate safety and save energy.

[0111] Furthermore, in order to prevent the cloth from wrinkling, a cloth unfolding device is arranged in front of the entrance of the pressing device and / or the first heating device 19, and the unfolding device is an arc unfolding rod, a spiral unfolding rod, an aluminum sheet unfolding rod or the like.

[0112] Furthermore, in order to adjust and control the operating speed, a tension control device is arranged in front of the entrance of the pressing device and / or the first heating device 19. The tension control device is a swing-arm tension controller or a pressure sensor, which controls the rotation speed of the motor of the pressing device and / or the first heating device 19 by detecting the tension of the cloth surface.

[0113] Furthermore, a swing-arm type cloth dropping device is provided at the outlet of the first heating device 19, and the cloth is delivered to the cloth dropping vehicle by swinging the cloth.

[0114] Furthermore, a cloth winding unit is provided at the outlet of the first heating device 19, and the cloth winding unit is a surface friction type winding unit or a center shaft winding unit.

[0115] Furthermore, a plasma treatment device or / and an online desizing and washing device or / and a functional slurry coating device are provided between the fabric sending device 10 and the rolling device. For example, by adding a plasma treatment device, the fabric is subjected to plasma treatment before the dye is rolled, thereby increasing the fabric's adsorption of the dye. By adding an online desizing and washing device, impurities on the surface of the grey fabric are first removed. By rolling and coating a swelling agent or a penetrant, the subsequent adsorption of the dye is facilitated.

[0116] Optionally, an online water washing device or / and a functional slurry coating device are provided behind the first heating device 19, and a heat drying device is provided behind the online water washing device or / and the functional slurry coating device. The online water washing device is used to remove floating color on the cloth after dyeing, and the functional slurry coating device is used to coat various functional coatings such as softeners, mildew inhibitors, etc.

[0117] Since the production process is carried out continuously, the movement trajectory of the cloth is reversible, that is, the positions of the cloth sending device and the finished product collecting device (including the cooling device) are interchangeable. Of course, in this case, the running direction of the cloth is reverse, and the position of the relevant cloth guide wheel should be adjusted as needed.

[0118] The above is a detailed introduction to a low liquid volume roller provided by the present invention. For those skilled in the art, according to the ideas of the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A low liquid volume padder, characterized in that: It includes a frame, a material distribution device, a guide wheel device, a pressing device, a material trough, a pressure device and a power device; The material trough is arranged inside the frame and below the pressing device, and liquid dye or functional coating is arranged in the material trough; The pressing device is arranged on the frame, and the pressing device at least comprises a first roller, a second roller, and a third roller, wherein the first roller, the second roller, and the third roller are arranged in sequence and are pressed and pressed in sequence; the first roller, the second roller, and the third roller are all connected to the power device, and are pressed or separated in sequence by the pressure provided by the pressure device; the first roller, the second roller, and the third roller are all used to abut against the cloth; The guide wheel device at least includes a first guide wheel, a second guide wheel, a third guide wheel, a fourth guide wheel, and a fifth guide wheel; the first guide wheel, the second guide wheel, the third guide wheel, the fourth guide wheel, and the fifth guide wheel are sequentially arranged on the frame, and the first guide wheel is arranged between the cloth sending device and the pressing device; the first guide wheel is used to guide the cloth between the second roller and the third roller; the second guide wheel is arranged on the discharge side of the third roller; the second guide wheel is used to guide the cloth to be folded to the third guide wheel, the fourth guide wheel, and the fifth guide wheel; the fifth guide wheel is arranged on the feeding side of the first roller and the material trough; the fifth guide wheel is used to guide the cloth into the material trough and / or guide the cloth into between the first roller and the second roller; a closed loop structure is formed between the second guide wheel, the third guide wheel, the fourth guide wheel, the fifth guide wheel, the first roller, the second roller, and the third roller, and the first guide wheel and the cloth sending device are arranged in the closed loop structure; A first heating device is respectively arranged between the second guide wheel and the third guide wheel and between the third guide wheel and the fourth guide wheel, and the first heating device is arranged on the frame.

2. The low liquid volume padder according to claim 1, characterized in that: The guide wheel device also includes a sixth guide wheel; The sixth guide wheel is arranged inside the material trough; the sixth guide wheel is located below between the first roller and the second roller, and is used to guide the cloth from the material trough into between the first roller and the second roller.

3. The low liquid padder according to claim 1, characterized in that: The material trough is also provided with a spray device; The spray device includes a spray part, a pipeline connected to the spray part, a valve, a pump and a filter device; The spraying part is a spray pipe or a spray head; The spraying part is arranged above the pressing device, and the spray pipe or nozzle, material trough, pipeline, valve, material pump and filtering device form a circulation structure for the dye liquid to flow.

4. The low liquid padder according to claim 1, characterized in that: The pressing device also includes a fifth roller; The fifth roller is arranged on a side of the third roller away from the second roller; A conveyor belt for transmitting cloth is arranged on the periphery of the fifth roller; a plurality of pressing wheels are arranged on the periphery of the conveyor belt; and the conveyor belt is pressed against the outer wall of the fifth roller; the first roller, the second roller, the third roller and the fifth roller are pressed against each other in sequence.

5. The low liquid volume padder according to claim 1, characterized in that: The first heating device is a heating oven or a heating roller, and a traction wheel device and / or a conveyor belt device are arranged in the heating oven.

6. The low liquid padder according to claim 1, characterized in that: The first roller is rotatably fixed on the frame, and the first roller, the second roller and the third roller are arranged in sequence from bottom to top in the vertical direction; the pressure device is provided at the axial end of the third roller, and the first roller, the second roller and the third roller press each other in sequence in the vertical direction.

7. The low liquid padder according to claim 1, characterized in that: The second roller is rotatably fixed on the frame, and the first roller, the second roller and the third roller are arranged in an L shape on the frame; the shaft ends of the first roller and the third roller are provided with the pressure device, and the first roller, the second roller and the third roller press each other in sequence.

8. The low liquid padder according to claim 1, characterized in that: The discharge end of the pressing device is provided with a second heating device and a finished product collecting device in sequence; the second heating device is a heating wheel type heating device and / or an oven type heating device; the oven type heating device is provided with a conveying guide wheel or a conveyor belt device or a needle plate type stenter setting machine device.

9. The low liquid padder according to claim 1, characterized in that: Among the first roller, the second roller and the third roller, at least one roller is a negative pressure microporous water-permeable roller, the outer wall of the negative pressure microporous water-permeable roller is provided with a plurality of water-permeable micropores and is covered with a water-permeable coating layer, and mutually connected water-passing grooves are provided between every two adjacent water-permeable micropores; the water-permeable micropores are connected with the inner cavity of the third roller; a through hole is provided at the center of at least one of the axial ends of the third roller, the through hole is connected with the inner cavity of the third roller, the through hole is connected with a rotating joint, and the rotating joint is connected with a negative pressure suction device.

10. The low liquid padder according to claim 9, characterized in that: The water-permeable covering layer is a water-permeable fiber cloth or a rubber-plastic elastomer.

Images