Double-layer open-width digital printing post-washing machine and washing process thereof

Abstract

The invention relates to a double-layer open-width digital printing post-washing machine and a washing process thereof. The double-layer open-width digital printing post-washing machine comprises a material rolling mechanism, the cleaning device is arranged above the material rolling mechanism and sprays the fabric; the air blowing device is arranged below the material rolling mechanism and blows air to the fabric; the material frame is arranged at an inlet and an outlet of the material rolling mechanism and is used for collecting and releasing the fabric; wherein the cleaning device and the blowing device are distributed in a staggered manner; the cleaning device comprises a rotary spray head and a high-pressure spray head which respectively correspond to each air blowing end of the air blowing device; and the blowing end of the blowing device and the high-pressure nozzle alternately act on the fabric. The problem that medium consumption is too large due to the fact that new cleaning liquid needs to be continuously supplemented in a traditional washing process is solved.

Description

Technical Field

[0001] The invention relates to the field of washing machines, in particular to a double-layer flat-width digital printing post-washing machine and a washing process thereof. Background Art

[0002] Fabrics need to be washed after digital printing. Traditionally, the method used is to wash them by soaking them in a rope. Specifically, the fabric is rolled into a rope and then wound between the upper and lower rollers. The rotation of the upper and lower rollers drives the fabric to move up and down reciprocatingly. During the movement, the fabric enters the washing tank to remove impurities on the surface of the fabric.

[0003] There is a large amount of cleaning liquid in the washing tank. To ensure the washing effect, new cleaning liquid needs to be added continuously. A large amount of cleaning liquid is consumed during the entire washing process. In addition, the fabric curls into a rope shape during movement, and then the upper and lower rollers roll it, which will form creases on the fabric, affecting the quality of digital printing on the fabric.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a double-layer flat-width digital printing post-washing machine and a washing process thereof, so as to solve the problem of excessive medium consumption caused by the need to continuously replenish new washing liquid in the traditional washing process in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A double-layer flat-width digital printing post-washing machine;

[0008] It includes: a roller mechanism, on which the fabric is reciprocatingly bent and wound; a cleaning device, which is arranged above the roller mechanism and sprays the fabric; an air blowing device, which is arranged below the roller mechanism and blows air to the fabric; a material rack, which is arranged at the inlet and outlet of the roller mechanism and is used to collect and release the fabric;

[0009] Among them, the cleaning device and the blowing device are staggered; the cleaning device includes a rotating nozzle and a high-pressure nozzle, which respectively correspond to the blowing ends of the blowing device; the blowing end of the blowing device and the high-pressure nozzle act on the fabric alternately.

[0010] A further technical solution is that the material rack includes: a frame body, a material shaft rotatably arranged on the frame body, a display frame movably arranged on the frame body and a first roller rotatably arranged on the display frame; wherein the fabric is wound on the material shaft and wound between the first rollers.

[0011] A further technical solution is that the roller mechanism includes: a main body, an upper roller shaft arranged at the upper part of the main body, a lower roller shaft arranged at the lower part of the main body, a collection frame for collecting the spray medium and filter plates laid in parallel at the inlet of the collection frame; wherein the upper roller shaft and the lower roller shaft are arranged alternately; and adjacent filter plates move back and forth alternately relative to each other.

[0012] A further technical solution is that the cleaning device includes: a first cylinder, a delivery pipe arranged in the first cylinder, a first delivery pump connected to the delivery pipe, and a heating mechanism for heating the spray medium; wherein the delivery pipe is connected to the rotating nozzle and the high-pressure nozzle; and the heating mechanism is arranged around the delivery pipe.

[0013] A further technical solution is that the cleaning device further comprises: a mounting plate mounted on the first cylinder; the rotating nozzle and the high-pressure nozzle are mounted on each of the mounting plates.

[0014] A further technical solution is that the blowing device comprises: a structural plate arranged along the fabric, a blowing head arranged on the structural plate, and a guide member arranged on the structural plate; wherein the guide member faces the direction of gas flow.

[0015] A washing process of a double-layer flat-width digital printing post-washing machine comprises the following steps:

[0016] Preparation steps: adjust the installation of rotary nozzles and high-pressure nozzles according to the distribution of impurities on the fabric; determine the medium spraying volume, medium spraying temperature, blowing volume and blowing temperature according to the fabric composition and density;

[0017] Initial washing step: the rotating nozzle sprays the medium on the fabric; the upper roller and the lower roller rotate to drive the fabric to move, and the upper roller and the lower roller squeeze the fabric to discharge the medium on the fabric; the medium spraying amount of the rotating nozzle is greater than the medium discharged from the fabric;

[0018] Washing steps: The rotating nozzle sprays the medium on the fabric, the medium passes through the fabric and falls on the guide, and the medium flows toward the blowing head; the blowing head blows out gas to drive the medium to act on the fabric again;

[0019] The high-pressure nozzle sprays the medium on the fabric, and the air blowing head blows out the gas on the fabric; the high-pressure nozzle and the air blowing head start and stop alternately;

[0020] Drying step: The air blowing head blows out gas to act on the fabric.

[0021] Compared with the prior art, the beneficial technical effects of the present invention are as follows: (1) The cleaning device and the blowing device are staggered. The cleaning device first acts on the fabric alone. The medium cannot completely pass through the fabric and fall, but accumulates on the surface of the fabric and flows down from the edge of the fabric. In this process, the medium does not need to pass through the fabric, and the medium flows smoothly. The medium can take away a large amount of impurities and large-sized impurities on the fabric;

[0022] For residual impurities with strong adhesion, the cleaning device and the blowing device work together to improve the cleaning effect in the following two ways. The first way: the rotating nozzle rotates to evenly spray the medium on one side of the fabric. After the medium passes through the fabric, it contacts the blowing device. The blowing device sprays gas to drive the medium to act on the other side of the fabric, and the washing process on both sides of the fabric is completed at the same time; the second way: the high-pressure nozzle sprays a large amount of medium at high pressure on one side of the fabric, and a part of the medium flows to the blowing device. The fabric shakes under the action of the high-pressure medium, and the blowing device sprays high-pressure gas to drive the medium to act on the other side of the fabric. The fabric shakes more under the action of the gas; the residual impurities fall off under the action of the high-pressure medium and gas, and the fabric shakes repeatedly and frequently with the medium to complete the washing, ensuring the cleaning effect of the fabric.

[0023] Finally, the air blowing device acts alone on the fabric to complete the drying of the fabric, and the air blowing device blows out gas to complete the drying of the fabric; the double-layer flat-width digital printing post-washing machine uses a spraying method to wash the fabric, and the amount of medium remaining in the fabric is less, which saves the consumption of the medium, and the drying time of the fabric is also shorter;

[0024] The double-layer flat-width digital printing post-washing machine adopts a completely flat-width method during the washing process. Compared with rope washing, it does not need to immerse the fabric in the medium, and it will not cause wrinkles on the fabric.

[0025] (2) The fabric is wound between the first rollers, and a group of first rollers unfold the fabric from the middle to both ends to avoid wrinkles on the fabric; the material rack at the left end drives the material shaft to rotate through the first power device to realize the unloading of the fabric, and the material rack at the right end drives the material shaft to rotate through the first power device to realize the collection of the fabric.

[0026] (3) The medium is filtered by the filter plate for the first time, filtered by the filter screen for the second time, and filtered by the inclined plate for the third time in sequence to completely remove impurities in the medium; the medium at the bottom of the collection frame is transported to the first cylinder by the second delivery pump, completing the recycling of the medium and reducing the waste of the medium.

[0027] (4) The medium in the first cylinder is first heated by a group of heating mechanisms before entering the water inlet pipe. During the flow of the medium in the water inlet pipe, the medium is heated again by a group of heating mechanisms. The medium is pumped into the delivery pipe by the first delivery pump and then heated by another group of heating mechanisms until the medium reaches a preset temperature. One group of heating mechanisms preheats and reheats the medium, and the other group of heating mechanisms heats the medium to a preset temperature. This prevents the medium from reaching the preset temperature too early to generate steam, thereby affecting the spraying amount of the medium. The positions of one group of heating mechanisms and the other group of heating mechanisms are dispersed, and the heating mechanisms heat the medium in the first cylinder at the same time, thereby improving the heating efficiency of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The schematic diagram of the structure of the double-layer flat-width digital printing post-washing machine according to the first embodiment of the present invention is shown.

[0029] Figure 2 A left-side structural diagram of a material rack according to an embodiment of the present invention is shown.

[0030] Figure 3 A left-side structural diagram showing the position of the filter plate according to an embodiment of the present invention is shown.

[0031] Figure 4 A partially enlarged structural diagram of an inclined plate according to the present invention is shown.

[0032] Figure 5 A left side structural diagram of the first cylinder according to an embodiment of the present invention is shown.

[0033] Figure 6 A partially enlarged structural diagram showing the position of the delivery pipe according to an embodiment of the present invention is shown.

[0034] Figure 7 A partially enlarged structural diagram of an air blowing device according to an embodiment of the present invention is shown.

[0035] The symbols in the attached drawings are: 1, roller mechanism; 11, main body; 12, upper roller shaft; 13, lower roller shaft; 14, collecting frame; 141, filter plate; 142, inclined plate; 143, second tooth shape; 144, diverter plate; 15, filter plate; 151, first tooth shape; 152, filter hole; 153, drive shaft; 154, second power device; 155, drive plate; 156, second elastic device; 2, cleaning device; 21, rotating nozzle; 22, high-pressure nozzle; 23, first cylinder; 234, first ring; 235, first elastic device 2. The first conveying pump; 24. The conveying pipe; 241. The main pipe; 242. The side pipe; 25. The first conveying pump; 251. The water inlet pipe; 26. The heating mechanism; 27. The mounting plate; 271. The circulation position; 272. The second ring; 3. The blowing device; 31. The structural plate; 32. The blowing head; 33. The guide member; 331. The guide groove; 34. The guide channel; 341. The first channel; 342. The second channel; 35. The heating plate; 4. The material rack; 41. The frame; 411. The first power device; 42. The material shaft; 43. The display rack; 44. The first roller. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present invention clearer, the device proposed by the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated by the accompanying drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0037] First embodiment:

[0038] Figure 1 The schematic diagram of the structure of the double-layer flat-width digital printing post-washing machine according to the first embodiment of the present invention is shown. Figure 1 As shown, the present invention discloses a double-layer flat-width digital printing post-washing machine.

[0039] The double-layer flat-width digital printing post-washing machine comprises: an air blowing device 3, a roller material mechanism 1 for reciprocatingly bending and winding the fabric, a cleaning device 2 for spraying the fabric, and a material rack 4 for storing and placing the fabric.

[0040] Among them, the cleaning device 2 is arranged above the roller material mechanism 1, the blowing device 3 is arranged below the roller material mechanism 1, and the material rack 4 is arranged at the inlet and outlet of the roller material mechanism 1. The cleaning device 2 includes a rotating nozzle 21 and a high-pressure nozzle 22, which respectively realize the rotary uniform spraying medium and the intermittent high-pressure spraying medium. The rotating nozzle 21 and the high-pressure nozzle 22 correspond to the blowing ends of the blowing device 3 respectively, and the blowing end of the blowing device 3 and the high-pressure nozzle 22 act on the fabric alternately. The cleaning device 2 and the blowing device 3 are staggered, so that the cleaning device 2 acts on the fabric alone first, then the cleaning device 2 and the blowing device 3 act on the fabric at the same time, and finally the blowing device 3 acts on the fabric alone. Exemplarily, the fabric is a textile after digital printing.

[0041] Due to the staggered distribution of the cleaning device 2 and the blowing device 3, the cleaning device 2 acts on the fabric alone first. At this time, the spray volume of the cleaning device 2 is large, and the medium cannot completely pass through the fabric and fall, but accumulates on the surface of the fabric and flows down from the edge of the fabric. In this process, the medium does not need to pass through the fabric, and the medium flows smoothly. The medium can take away a large amount of impurities and large-sized impurities on the fabric.

[0042] For residual impurities with strong adhesion, the cleaning device and the blowing device work together to improve the cleaning effect in the following two ways. The first way: the rotating nozzle 21 rotates to evenly spray the medium on one side of the fabric. After the medium passes through the fabric, it contacts the blowing device 3. The blowing device 3 sprays gas to drive the medium to act on the other side of the fabric. The washing process on both sides of the fabric is completed at the same time. The second way: the high-pressure nozzle 22 sprays a large amount of medium at high pressure to act on one side of the fabric. A part of the medium flows to the blowing device 3, and the fabric shakes under the action of the high-pressure medium. The blowing device 3 sprays high-pressure gas to drive the medium to act on the other side of the fabric, and the shaking of the fabric is aggravated by the gas. Under the action of the high-pressure medium and gas, the residual impurities fall off, and the fabric shakes repeatedly with the medium at high frequency to complete the washing, ensuring the cleaning effect of the fabric.

[0043] Finally, the blowing device 3 acts alone on the fabric to complete the drying of the fabric, and the blowing device 3 blows out gas to complete the drying of the fabric. The double-layer flat-width digital printing post-washing machine uses a spraying method to wash the fabric, and the amount of medium remaining in the fabric is small, which saves the consumption of the medium, and the drying time of the fabric is also short.

[0044] The double-layer flat-width digital printing post-washing machine adopts a completely flat-width method during the washing process. Compared with rope washing, it does not need to immerse the fabric in the medium, and it will not cause wrinkles on the fabric.

[0045] Figure 2 The left side structural diagram of the material rack of the embodiment of the present invention is shown. Figure 1 and Figure 2As shown, the material rack 4 includes: a frame body 41, a material shaft 42 rotatably arranged on the frame body 41, a display frame 43 movably arranged on the frame body 41, and a first roller 44 rotatably arranged on the display frame 43. The fabric is wound on the material shaft 42 and wound between the first rollers 44.

[0046] A first power device 411 is installed on the frame 41, and the first power device 411 drives the material shaft 42 to rotate. Exemplarily, the first power device 411 is a motor. The first rollers 44 are arranged on the display frame 43 in the front-to-back direction. Exemplarily, there are two groups of first rollers 44. The diameter of the middle position of one group of first rollers 44 is greater than the diameter of the two end positions of one group of first rollers 44. The middle position of one group of first rollers 44 transitions to the two end positions of one group of first rollers 44 in an inclined plane. Another group of first rollers 44 cooperates with one group of first rollers 44, and their outer surfaces are parallel to each other.

[0047] The fabric is wound between the first rollers 44, and a group of first rollers 44 spread the fabric from the middle to both ends to prevent wrinkles on the fabric. The left end of the material rack 4 drives the material shaft 42 to rotate through the first power device 411 to realize the unloading of the fabric, and the right end of the material rack 4 drives the material shaft 42 to rotate through the first power device 411 to realize the collection of the fabric.

[0048] Figure 3 A left-side structural diagram showing the position of the filter plate according to an embodiment of the present invention is shown. Figure 4 The enlarged partial structure diagram of the inclined plate of the present invention is shown. Figure 1-Figure 4 As shown, the roller mechanism 1 includes: a main body 11, an upper roller shaft 12 arranged at the upper part of the main body 11, a lower roller shaft 13 arranged at the lower part of the main body 11, a collection frame 14 for collecting the spraying medium, and filter plates 15 laid in parallel at the inlet of the collection frame 14.

[0049] The main body 11 is arranged in the left and right directions, and the upper roller 12 and the lower roller 13 are arranged in a staggered manner, so that the fabric is reciprocated and bent around the upper roller 12 and the lower roller 13. When the fabric transitions between the upper roller 12 and the lower roller 13, the fabric is in an inclined state. When the medium acts on the fabric, the medium can flow along the fabric at an angle, thereby flushing the impurities on the fabric. After the fabric contacts the upper roller 12 and the lower roller 13, it is squeezed by the upper roller 12 and the lower roller 13 to discharge the medium from the fabric and spray it again.

[0050] The collecting frame 14 is installed at the bottom of the main body 11. The upper end opening of the collecting frame 14 is the inlet of the collecting frame 14. The adjacent filter plates 15 move back and forth alternately. The upper surface of the filter plate 15 forms a first tooth shape 151, and the first tooth shape 151 is inclined forward or backward. The inclination direction of the first tooth shapes 151 on adjacent filter plates 15 is opposite. Filter holes 152 are formed between adjacent first tooth shapes 151 on the filter plate 15.

[0051] After the medium falls on the filter plate 15, the adjacent filter plates 15 alternately reciprocate and move back and forth relatively, and the medium flows evenly to the adjacent first tooth shapes 151 on the filter plate 15 or the adjacent filter plates 15, so that the medium can be evenly distributed. The filter plate 15 filters the medium through the filter holes 152, and the filtered medium accumulates in the collection frame 14. When there are many impurities on the filter plate 15 that need to be cleaned, an air gun can be used to aim at the first tooth shape 151 of the filter plate 15 to clean the impurities.

[0052] The collection frame 14 is provided with a drive shaft 153 that rotates in the left and right directions, and the drive shaft 153 is connected to a second power device 154. Drive plates 155 are arranged in parallel on the drive shaft 153, and the drive plates 155 abut against one side of the filter plate 15. A second elastic device 156 is arranged on the collection frame 14 relative to one side of the drive shaft 153. The second elastic device 156 pushes the other side of the filter plate 15.

[0053] Exemplarily, the driving plate 155 is oval in shape. There is a deviation in the angles at which adjacent driving plates 155 are arranged on the driving shaft 153 , so that different positions of each driving plate 155 abut against one side of the filter plate 15 .

[0054] The second power device 154 drives the drive shaft 153 to rotate, and the drive shaft 153 drives the drive plate 155 to rotate. The drive plate 155 pushes the filter plate 15 to move backward, and the second elastic device 156 is squeezed and contracted. When the filter plate 15 moves backward to the limit position, the drive plate 155 no longer pushes the filter plate 15, and the second elastic device 156 elastically extends to push the filter plate 15 forward. Repeating the above actions realizes the reciprocating relative forward and backward movement of the filter plate 15. Due to the deviation in the setting angles of adjacent drive plates 155, there are differences in the motion states of adjacent filter plates 15, so that adjacent filter plates 15 can alternately reciprocate relative forward and backward movement.

[0055] In order to improve the filtering ability of the medium, a filter plate 141 can be installed at the inlet of the collection frame 14, and adjacent filter plates 15 move back and forth along the filter plate 141 alternately. After the medium is filtered through the filter holes 152 of the filter plate 15, it is filtered through the filter plate 141 and then enters the collection frame 14.

[0056] After the fabric is finally dried, it is collected. Since the medium collected at the right inlet of the collecting frame 14 is small, an inclined plate 142 is set at the right end of the collecting frame 14. Second tooth shapes 143 are formed in parallel on the inclined plate 142. A diverter plate 144 is horizontally set in the collecting frame 14. The left end of the diverter plate 144 is connected to the left end of the collecting frame 14. There is a gap between the right end of the diverter plate 144 and the inclined plate 142.

[0057] The medium falling into the collection frame 14 accumulates on the diverter plate 144, flows from left to right along the diverter plate 144 and then flows to the inclined plate 142, and then flows along the inclined plate 142 and enters the bottom of the collection frame 14. During the flow of the medium along the inclined plate 142, the second tooth shape 143 blocks impurities in the medium, thereby filtering the medium.

[0058] The medium is filtered by the filter plate 15 for the first time, the filter plate 141 for the second time and the inclined plate 142 for the third time to completely remove impurities in the medium. The medium at the bottom of the collection frame 14 is transported to the first cylinder 23 by the second delivery pump, completing the recycling of the medium and reducing the waste of the medium.

[0059] Figure 5 A left side structural diagram of the first cylinder according to an embodiment of the present invention is shown. Figure 6 The following is a partial enlarged structural diagram of the position of the delivery pipe according to an embodiment of the present invention. Figure 1-Figure 6 As shown, the cleaning device 2 includes: a first barrel 23, a delivery pipe 24 disposed in the first barrel 23, a first delivery pump 25 connected to the delivery pipe 24, and a heating mechanism 26 for heating the spray medium. The delivery pipe 24 is connected to the rotating nozzle 21 and the high-pressure nozzle 22. The heating mechanism 26 is disposed around the delivery pipe 24.

[0060] The first delivery pump 25 is arranged on the first cylinder 23. The outlet of the first delivery pump 25 is connected to the delivery pipe 24, and the inlet of the first delivery pump 25 is connected to the water inlet pipe 251. The water inlet pipe 251 is installed in the first cylinder 23 and extends upward in a curved manner. The delivery pipe 24 includes a main pipe 241 arranged front and back and a side pipe 242 connected in parallel to the main pipe 241. The rotating nozzle 21 and the high-pressure nozzle 22 are connected to the side pipe 242.

[0061] One group of heating mechanisms 26 is spirally wound around the water inlet pipe 251, and another group of heating mechanisms 26 is spirally wound around the main pipe 241. The installation height of one group of heating mechanisms 26 is greater than the water inlet height of the water inlet pipe 251. The medium in the first cylinder 23 first enters the water inlet pipe 251 after being heated by one group of heating mechanisms 26, and the one group of heating mechanisms 26 heats the medium again during the flow of the medium in the water inlet pipe 251. The medium enters the delivery pipe 24 through the pumping of the first delivery pump 25 and is heated by another group of heating mechanisms 26 again, and the medium reaches a preset temperature. One group of heating mechanisms 26 preheats and reheats the medium, and the other group of heating mechanisms 26 heats the medium to a preset temperature. Avoid the medium from reaching the preset temperature too early to generate steam, which affects the spraying amount of the medium. One group of heating mechanisms 26 and another group of heating mechanisms 26 are located in a dispersed position, and the heating mechanisms 26 also heat the medium in the first cylinder 23 at the same time, thereby improving the heating efficiency of the medium.

[0062] The lower end of the first cylinder 23 is in an undulating structure, close to the reciprocating bending shape of the fabric, so that the rotary nozzle 21 and the high-pressure nozzle 22 can be vertically installed on the fabric.

[0063] The cleaning device 2 further comprises: a mounting plate 27 mounted on the first cylinder 23. The rotating nozzle 21 and the high-pressure nozzle 22 are mounted on each mounting plate 27. By replacing different mounting plates 27, the mounting positions of the rotating nozzle 21 and the high-pressure nozzle 22 are switched.

[0064] The outlet of the side tube 242 protrudes from the first cylinder 23, and the outlet of the side tube 242 is sleeved with a first ring 234 and a first elastic device 235. A flow position 271 is formed on the mounting plate 27, and a second ring 272 is formed around the flow position 271. The first ring 234 and the second ring 272 form convex teeth at relative positions.

[0065] The mounting plate 27 is mounted on the first cylinder 23 by bolts and nuts. When the mounting plate 27 is mounted, the side tube 242 is inserted into the flow position 271, and the convex teeth of the first ring member 234 engage with the convex teeth of the second ring member 272. After the mounting plate 27 is mounted upward, the first elastic device 235 is forced to push the first ring member 234 downward, so that the first ring member 234 and the second ring member 272 are firmly sealed.

[0066] Figure 7 The following is a partial enlarged structural diagram of the blowing device according to an embodiment of the present invention. Figure 1-Figure 7 As shown, the blowing device 3 comprises: a structural plate 31 arranged along the fabric, a blowing head 32 arranged on the structural plate 31, and a guide member 33 arranged on the structural plate 31. The guide member 33 faces the gas flow direction.

[0067] The structural plate 31 is bent back and forth, and the guide members 33 are arranged in parallel on the structural plate 31. A guide channel 34 is arranged between adjacent guide members 33, and a heating plate 35 for heating gas is arranged in the guide channel 34. The guide channel 34 includes a first channel 341 and a second channel 342 which are connected to each other. An angle is formed between the first channel 341 and the second channel 342. The first channel 341 faces the fabric, and the second channel 342 is connected to the outlet of the blowing head 32. The heating plate 35 is installed in the second channel 342.

[0068] The blowing head 32 blows out gas into the second channel 342, and the heating plate 35 heats the gas in the second channel 342 to form hot gas, which acts on the fabric after passing through the first channel 341. The cross-sectional area of ​​the second channel 342 is larger than the cross-sectional area of ​​the first channel 341, so that the flow rate of the hot gas is accelerated when passing through the first channel 341, and sufficient pressure is generated to drive the medium to act on the fabric. At the same time, the amount of gas in the second channel 342 is large, so that more gas is heated to form hot gas, thereby ensuring the drying effect of the fabric.

[0069] There are impurities in the medium accumulated on the guide member 33. A guide groove 331 is formed on the guide member 33 in the front-to-back direction. Impurities sink into the guide groove 331 and flow into the collection frame 14 from the front and rear ends of the guide member 33 under the action of the medium flow. The medium flows into the first channel 341 under the guidance of the guide member 33 without passing through the guide groove 331.

[0070] Second embodiment:

[0071] The washing process of the double-layer flat-width digital printing post-washing machine includes the following steps:

[0072] Preparation steps: The fabric is a digitally printed textile. Considering that the washing process cannot affect the printed pattern, the installation of the rotary nozzle 21 and the high-pressure nozzle 22 needs to be adjusted according to the distribution of impurities on the fabric.

[0073] The installation of the high-pressure nozzle 22 is determined according to the properties of the impurities. If the impurities are more viscous, the number of high-pressure nozzles 22 is increased; if the impurities cover a large amount, the number of rotary nozzles 21 is increased.

[0074] Determine the medium spraying temperature and blowing temperature according to the fabric composition, and avoid the medium spraying temperature and blowing temperature exceeding the heat-resistant temperature of the fabric composition to avoid damaging the fabric. Adjust the medium spraying amount and blowing amount according to the fabric density. Among them, the greater the fabric density, the smaller the medium spraying amount and the greater the blowing amount. The smaller the fabric density, the greater the medium spraying amount and the smaller the blowing amount.

[0075] Initial washing step: The rotating nozzle 21 sprays the medium on the fabric. The upper roller 12 and the lower roller 13 rotate to drive the fabric to move, and the upper roller 12 and the lower roller 13 squeeze the fabric to discharge the medium on the fabric. The medium spraying amount of the rotating nozzle 21 is greater than the medium discharged from the fabric.

[0076] The initial washing step can remove impurities with weak adhesion on the fabric, reduce the amount of impurities washed in the washing step, and ensure the cleanliness of the fabric after washing.

[0077] The medium discharged from the fabric flows out through the fabric. Since the medium spraying amount of the rotating nozzle 21 is greater than the medium discharge amount of the fabric, the medium cannot be completely discharged through the fabric, and will accumulate above the fabric, and then flow out from the front and back sides of the fabric and fall into the collection frame 14. In this process, the medium flows continuously, and the medium continuously washes impurities. The medium drives impurities with weak adhesion and large sizes to pass through the filter plate 15 and enter the collection frame 14.

[0078] The fabric is wound around the upper roller 12 and the lower roller 13, and both sides of the fabric are sprayed by the rotating nozzle 21 alternately and repeatedly.

[0079] Washing step: The rotating nozzle 21 sprays the medium on the fabric, the medium passes through the fabric and falls on the guide member 33, and the medium flows toward the air blowing head 32. The air blowing head 32 blows out gas to drive the medium to act on the fabric again.

[0080] The high pressure nozzle 22 sprays the medium on the fabric, and the air blowing head 32 blows the gas on the fabric. The high pressure nozzle 22 and the air blowing head 32 are started and stopped alternately.

[0081] The washing machine adopts a double-layer structure, the upper layer is a cleaning device 2, which realizes spraying of the fabric alone and in cooperation with the blowing device 3; the lower layer is a blowing device 3 which realizes drying of the fabric alone and in cooperation with the cleaning device 2 for spraying.

[0082] The amount of medium sprayed by the rotary nozzle 21 in the washing step is less than that in the initial washing step, so that the medium can flow out after passing through the fabric. The medium sprayed by the rotary nozzle 21 acts on the upper surface of the fabric, and the medium passes through the fabric and falls to the guide member 33 to form an accumulation and flow into the first channel 341. The gas blown out by the blowing head 32 passes through the heating plate 35 in the second channel 342 to form hot air, which drives the medium in the first channel 341 to spray and act on the lower surface of the fabric.

[0083] The high-pressure nozzle 22 and the blowing head 32 work at a certain frequency interval respectively, and the frequencies of the two are staggered to achieve start-stop alternation, so as to avoid the spraying medium and the blowing gas acting on the fabric at the same time.

[0084] The high-pressure nozzle 22 acts on the fabric with a high-pressure medium, and the air blowing head 32 acts on the fabric with a high-pressure gas, and the strongly adherent impurities are washed off. When the fabric moves in the roller mechanism 1, it is spread out in a flat width, and the fabric is in a tensioned state under the action of the upper roller 12 and the lower roller 13. Under the action of high pressure, the fabric will shake so that the strongly adherent impurities can fall off.

[0085] The high-pressure nozzle 22 acts on the fabric with a high-pressure medium, and the fabric vibrates at a certain frequency. A small portion of the medium passes through the fabric and finally flows into the first channel 341. The air blowing head 32 drives the medium to act on the fabric with high-pressure gas, and the vibration frequency of the fabric increases. The fabric continues to vibrate at a high frequency.

[0086] In order to prevent the high-frequency vibration position of the fabric from affecting other parts of the fabric, the upper roller 12 and the lower roller 13 at the high-frequency vibration position of the fabric adopt two sets of clamping methods to reduce the transmission of high-frequency vibration on the fabric while ensuring the tension of the fabric.

[0087] Drying step: The air blower 32 blows out gas, which is heated by the heating plate 35 in the second channel 342 to form hot air, which is ejected from the first channel 341 to act on the fabric. The fabric needs to be dried after the initial washing step and the water washing step. During the drying step, the amount of gas blown out by the air blower 32 and the gas temperature are gradually reduced to prevent the hot air from damaging the fabric.

[0088] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A double-layer flat-width digital printing post-washing machine, characterized in that: include: A roller mechanism (1) for reciprocatingly bending and winding the fabric; A cleaning device (2) is arranged above the roller mechanism (1) and sprays the fabric; An air blowing device (3) is arranged below the roller mechanism (1) and blows air toward the fabric; A material rack (4) is arranged at the inlet and outlet of the roller mechanism (1) and is used to collect and release fabrics; The cleaning device (2) and the blowing device (3) are staggered in distribution; the cleaning device (2) comprises a rotating nozzle (21) and a high-pressure nozzle (22), which respectively correspond to the blowing ends of the blowing device (3); the blowing end of the blowing device (3) and the high-pressure nozzle (22) act on the fabric alternately.

2. The double-layer flat-width digital printing post-washing machine according to claim 1, characterized in that: The material rack (4) comprises: a frame body (41), a material shaft (42) rotatably arranged on the frame body (41), a display frame (43) movably arranged on the frame body (41), and a first roller (44) rotatably arranged on the display frame (43); wherein the fabric is wound on the material shaft (42) and wound between the first rollers (44).

3. The double-layer flat-width digital printing post-washing machine as claimed in claim 2, characterized in that: The roller mechanism (1) comprises: a main body (11), an upper roller shaft (12) arranged at the upper part of the main body (11), a lower roller shaft (13) arranged at the lower part of the main body (11), a collection frame (14) for collecting the spray medium, and filter plates (15) arranged in parallel at the inlet of the collection frame (14); wherein the upper roller shaft (12) and the lower roller shaft (13) are arranged in a staggered manner; and adjacent filter plates (15) move back and forth alternately relative to each other.

4. The double-layer flat-width digital printing post-washing machine according to claim 2, characterized in that: The cleaning device (2) comprises: a first cylinder (23), a delivery pipe (24) arranged in the first cylinder (23), a first delivery pump (25) connected to the delivery pipe (24), and a heating mechanism (26) for heating a spray medium; wherein the delivery pipe (24) is connected to the rotary nozzle (21) and the high-pressure nozzle (22); and the heating mechanism (26) is arranged around the delivery pipe (24).

5. The double-layer flat-width digital printing post-washing machine as claimed in claim 4, characterized in that: The cleaning device (2) further comprises: a mounting plate (27) mounted on the first cylinder (23); the rotating spray head (21) and the high-pressure spray head (22) are mounted on each of the mounting plates (27).

6. The double-layer flat-width digital printing post-washing machine according to claim 2, characterized in that: The blowing device (3) comprises: a structural plate (31) arranged along the fabric, a blowing head (32) arranged on the structural plate (31), and a guide member (33) arranged on the structural plate (31); wherein the guide member (33) faces the direction of gas flow.

7. A washing process for a double-layer flat-width digital printing post-washing machine, characterized in that: The method comprises the following steps: a preparation step: adjusting the installation conditions of the rotary nozzle (21) and the high-pressure nozzle (22) according to the distribution of impurities on the fabric; determining the medium spraying amount, medium spraying temperature, blowing amount and blowing temperature according to the fabric composition and density; Initial washing step: the rotating nozzle (21) sprays the medium on the fabric; the upper roller (12) and the lower roller (13) rotate to drive the fabric to move, and the upper roller (12) and the lower roller (13) squeeze the fabric to discharge the medium on the fabric; the medium spraying amount of the rotating nozzle (21) is greater than the medium discharge amount of the fabric; Washing step: the rotating nozzle (21) sprays the medium on the fabric, the medium passes through the fabric and falls on the guide member (33), and the medium flows toward the blowing head (32); the blowing head (32) blows out gas to drive the medium to act on the fabric again; The high-pressure nozzle (22) sprays a medium on the fabric, and the air blowing head (32) blows out gas on the fabric; the high-pressure nozzle (22) and the air blowing head (32) are started and stopped alternately; Drying step: The air blowing head (32) blows out air to act on the fabric.

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