Heating system of rapid steamer for printing

Abstract

The utility model relates to the technical field of cloth printing and color fixing, in particular to a heating system of a rapid steamer for printing. The steam recycling can be realized, the steam loss is reduced, the energy is saved, and the cloth color fixing effect is improved; comprising a machine frame, a bottom roller rotationally installed on the machine frame, a lifting pressing and covering mechanism installed on the machine frame and a circulating steam color fixing mechanism. The lifting pressing mechanism comprises two sliding seats which are mounted on the rack in an up-and-down sliding manner, a pressing permeation roller which is rotatably mounted between the two sliding seats, and a lifting driving cylinder which is fixedly mounted on the rack and provides power for the up-and-down movement of the two sliding seats; the circulating steam color fixing mechanism comprises a box body fixedly installed on the rack, a steam generating assembly arranged in the box body and a vacuum pump fixedly installed on the box body, the box body is provided with an air blowing cover communicated with the interior of the box body, and the outflow end of the air blowing cover faces the position between the bottom roller and the pressing and covering permeation roller.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric printing and color fixation, in particular to a heating system for a steaming machine for printing. Background Art

[0002] As is well known, a steaming machine for printing is an instrument and equipment for the steaming and color fixation and baking of woven fabrics, knitted fabrics and non-woven fabrics of synthetic fibers, chemical fibers and their blended fabrics; the function of the steaming machine is to transfer the dyes in the color paste into the fibers through steaming to achieve the color fixation effect, and its effect directly affects the color and brightness after printing; the main process parameters affecting the effect of the steaming machine are temperature, humidity and steaming time, which vary to a certain extent with different fibers and dyes. The fabric looping in the steaming process is a guarantee for the steaming time, quality and process safety and reliability.

[0003] For example, Chinese invention patent CN115891454B discloses a digital transfer printing processing device, including a base frame, a printing frame fixedly arranged on the base frame, and a printing spray roller support and a steam generator fixedly installed on the base frame. The fabric that has completed printing is conveyed in a folded manner to increase the heating area, and the boiling point of water evaporation is reduced by reducing the pressure, thereby solving the problem of cracking of the printed pattern caused by high-temperature drying.

[0004] However, it is found that there are the following defects: the steam is respectively introduced into the top printing spray roller and the bottom printing spray roller through a steam hard pipe and a steam hose by a steam generator, and then sprayed on the paper and the cloth through the air holes on the top printing spray roller and the bottom printing spray roller; in this process, the steam is easy to diffuse everywhere, resulting in a large amount of steam and heat energy loss, and it is not conducive to the diffusion of the color paste into the fibers of the cloth, and the color fixation effect needs to be further improved. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a heating system for a steaming machine for printing, which can realize the recycling of steam, reduce steam loss, be more energy-saving, and at the same time improve the color fixation effect of the cloth pattern.

[0006] To achieve the above object, the utility model provides the following technical solution: a heating system for a steaming machine for printing, including a frame, a bottom roller rotatably installed on the frame, a lifting and pressing mechanism installed on the frame, and a circulating steam color fixation mechanism;

[0007] The lifting and pressing mechanism includes two sliding seats slidably installed up and down on the frame, a pressing and permeating roller rotatably installed between the two sliding seats, and a lifting driving cylinder fixedly installed on the frame to provide power for the up and down movement of the two sliding seats;

[0008] The circulating steam color fixation mechanism includes a box body fixedly installed on the frame, a steam generating component built inside the box body, and a vacuum pump fixedly installed on the box body. A blowing hood communicating with the inside of the box body is provided on the box body, and the outflow end of the blowing hood faces between the bottom roller and the pressing and permeating roller. The input end of the vacuum pump is rotatably and sealingly connected to both ends of the pressing and permeating roller, and the output end of the vacuum pump extends into the box body.

[0009] The pressing and permeating roller is located above the bottom roller; the pressing and permeating roller is a hollow roller inside, and the pressing and permeating roller is made of multi-porous ceramic material; the input end of the vacuum pump is rotatably and sealingly connected to the middle parts of both ends of the pressing and permeating roller through a rotating sealing connector; the rotating sealing connector can adopt equivalent parts with rotating sealing effects such as mechanical shaft seals.

[0010] Preferably, a gas collecting hood extending towards the pressing and permeating roller side and a fan are installed on the top of the box body. The air inlet end of the fan is located inside the gas collecting hood, and the air outlet end of the fan extends into the box body.

[0011] Preferably, the steam generating component includes a spray pipe group and heating coils built at the bottom of the box body, and a plurality of uniformly distributed atomizing nozzles are installed on the spray pipe group.

[0012] The heating coils can adopt electric heating pipes or other coils heated by heat medium; the atomizing nozzles are preferably multi-head nozzles.

[0013] Preferably, a slider is slidably installed up and down at the sliding seat, and a guiding roller is rotatably installed between the sliders on the two sliding seats; further, the slider and the sliding seat are locked by bolts. Further, a sliding groove matching the slider is provided on the sliding seat, and the slider is slidably installed in the sliding groove.

[0014] Preferably, a receiving groove and a cleaning roller component for cleaning the water droplets on the outer wall of the bottom roller are installed on the frame, and the receiving groove is located below the bottom roller; further, the cleaning roller component can adopt a sponge pad, and the sponge pad is in close contact with the bottom roller. The cleaning roller component can also adopt other equivalent parts with water absorption effects.

[0015] Preferably, the cleaning roller component includes a rotating frame rotatably installed on the frame, a scraping knife installed on the rotating frame, and a rotating driving cylinder for providing power for the rotation of the rotating frame; further, the rotating driving cylinder is rotatably installed on the frame, and the output end of the rotating driving cylinder is hinged to the rotating frame.

[0016] Preferably, the scraping knife is slidably installed on the rotating frame, and an adjusting bolt rotatably connected to the scraping knife is screwed on the rotating frame.

[0017] Compared with the prior art, the present utility model provides a heating system for a steaming machine for printing, having the following beneficial effects:

[0018] For the steaming heating system for printing, the printed fabric passes through between the pressing and permeating roller and the bottom roller. The printed side of the fabric is in close contact with the outer wall of the pressing and permeating roller. The steam generated by the steam generating component is blown onto the fabric between the pressing and permeating roller and the bottom roller through the air blowing hood. The steam contacts the color paste on the fabric surface. The color paste absorbs moisture and swells under the conditions of high temperature and high humidity, enabling the dye to dissolve within the range of the color paste pattern and penetrate into the fabric's textile fibers. By starting the vacuum pump, a negative pressure is generated inside the pressing and permeating roller. Since the fabric is wrapped around the outer wall of the pressing and permeating roller, under the action of the negative pressure, the penetration of the color paste and steam into the fabric can be accelerated. The dye molecules take this opportunity to penetrate deep into the fibers and form chemical bonds with the fiber molecules, thereby firmly fixing the dye on the fibers. After the excess steam enters the pressing and permeating roller, it flows back into the box body. In this way, steam recycling can be achieved, steam loss can be reduced, energy can be saved more, and at the same time, the color fixing effect of the fabric pattern can be improved. Brief Description of the Drawings

[0019] Figure 1 is an isometric three-dimensional structural schematic diagram of the present utility model.

[0020] Figure 2 is a front view structural schematic diagram of the present utility model.

[0021] Figure 3 is of the present utility model Figure 2 sectional structural schematic diagram at A-A in

[0022] Figure 4 is of the present utility model Figure 2 sectional structural schematic diagram at B-B in

[0023] Figure 5 is an isometric three-dimensional structural schematic diagram of the spray pipe group of the present utility model.

[0024] Figure 6 is of the present utility model Figure 1 local enlarged structural schematic diagram at C in

[0025] Figure 7 is of the present utility model Figure 3 local enlarged structural schematic diagram at D in

[0026] Reference numerals in the drawings: 1, frame; 2, bottom roller; 3, sliding seat; 4, pressing and permeating roller; 5, lifting drive cylinder; 6, box body; 7, vacuum pump; 8, air blowing hood; 9, air collecting hood; 10, fan; 11, spray pipe group; 12, heating coil; 13, atomizing nozzle; 14, slider; 15, guiding roller; 16, receiving groove; 17, rotating frame; 18, scraper; 19, rotating drive cylinder; 20, adjusting bolt. Detailed Description of the Embodiment

[0027] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.

[0029] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] Embodiment 1

[0031] Please refer to Figure 1-4 , a steaming machine heating system for printing, which includes a frame 1, a bottom roller 2 rotatably installed on the frame 1, a lifting and pressing mechanism installed on the frame 1, and a circulating steam color-fixing mechanism. The lifting and pressing mechanism includes two sliding seats 3 slidably installed up and down on the frame 1, a pressing and permeating roller 4 rotatably installed between the two sliding seats 3, and a lifting driving cylinder 5 fixedly installed on the frame 1 to provide power for the up and down movement of the two sliding seats 3; the circulating steam color-fixing mechanism includes a box body 6 fixedly installed on the frame 1, a steam generating component built in the box body 6, and a vacuum pump 7 fixedly installed on the box body 6. The box body 6 is provided with a blowing hood 8 communicating with the inside of the box body 6, and the outflow end of the blowing hood 8 faces between the bottom roller 2 and the pressing and permeating roller 4. The input end of the vacuum pump 7 is rotatably and sealingly connected to both ends of the pressing and permeating roller 4, and the output end of the vacuum pump 7 extends into the box body 6; further, the pressing and permeating roller 4 is located above the bottom roller 2; the pressing and permeating roller 4 is a hollow roller inside, and the pressing and permeating roller 4 is made of multi-porous ceramic material; the input end of the vacuum pump 7 is rotatably and sealingly connected to the middle parts of both ends of the pressing and permeating roller 4 through a rotating sealing connector; the rotating sealing connector can adopt equivalent parts with a rotating sealing effect such as a mechanical shaft seal; a driving motor for providing power for the rotation of the bottom roller 2 is installed on the frame 1.

[0032] Please refer to Figure 5 , Figure 7 , the steam generating component includes a spray pipe group 11 and a heating coil 12 built in the bottom of the box body 6, and a plurality of evenly distributed atomizing nozzles 13 are installed on the spray pipe group 11; further, the heating coil 12 can adopt an electric heating pipe or other coils heated by a heat medium; the atomizing nozzle 13 is preferably a multi-head nozzle.

[0033] Please refer toFigure 1 and Figure 3 A slider 14 is slidably mounted up and down at the sliding seat 3. A guiding roller 15 is rotatably mounted between the sliders 14 on the two sliding seats 3. The slider 14 and the sliding seat 3 are locked by bolts. Further, a sliding groove that fits the slider 14 is provided on the sliding seat 3, and the slider 14 is slidably mounted in the sliding groove.

[0034] Please refer to Figure 4 At the top of the box body 6, an air collecting hood 9 and a fan 10 extending towards one side of the pressing and permeating roller 4 are installed. The air inlet end of the fan 10 is located inside the air collecting hood 9, and the air outlet end of the fan 10 extends into the box body 6. Further, the fan 10 is an adjustable speed fan.

[0035] In this embodiment, when the fabric is initially loaded, a certain distance is left between the pressing and permeating roller 4 and the bottom roller 2. The fabric passes through between the bottom roller 2 and the pressing and permeating roller 4 and then through between the guiding roller 15 and the pressing and permeating roller 4. Subsequently, the fabric is stretched upward by an external device and the lifting drive cylinder 5 is activated. The pressing and permeating roller 4 moves downward, and the fabric is tightly wrapped around the outer wall of the pressing and permeating roller 4. The installation height of the guiding roller 15 can be adjusted by the position of the upper and lower sliding seats 3, so as to adjust the contact area between the fabric and the pressing and permeating roller 4, so as to adaptively adjust the wrapping area of the fabric on the pressing and permeating roller 4, that is, to adjust the contact duration between the fabric and the pressing and permeating roller 4, so as to adjust the penetration duration of the sizing agent on the fabric into the fiber interior, so as to meet the steam fixing requirements of fabrics with different penetration properties; in another embodiment, the penetration depth of the sizing agent on the fabric can also be adjusted by changing the vacuum degree inside the pressing and permeating roller 4. The air pressure inside the pressing and permeating roller 4 can be adjusted by adjusting the power of the vacuum pump 7 or other methods, and no further detailed description will be given here.

[0036] In the heating system of the steaming machine for printing provided in this embodiment, the spray pipe group 11 is communicated with an external pressurized water source. After water enters the spray pipe group 11, it is atomized and sprayed out through the atomizing nozzles 13. The initially atomized water droplets quickly vaporize after contacting the heated coil 12 in a hot state, promoting the rapid conversion of water into steam; quickly supplying steam for the printing of the fabric; after the fan 10 is started, flowing air is blown into the box body 6, and the air pressure inside the box body 6 increases, which can promote the steam to be discharged from the air blowing hood 8. Since the fan 10 sucks air in the air collecting hood 9, a negative pressure is generated in the air collecting hood 9, and the steam has a high temperature and is an upward air flow. The excess steam is collected through the air collecting hood 9 and then enters the box body 6 again. In this way, the amount of steam overflow is further reduced, the recycling rate of steam is improved, and it is more energy-saving and environmentally friendly; and the fan 10 is an adjustable speed fan, which can adaptively adjust the circulation amount of steam, so as to adaptively adjust the amount of steam in contact with the fabric. The amount of steam has a direct relationship with the temperature and humidity at the fabric, and can meet the requirements of different fabrics for temperature and humidity, improving the applicability of the system.

[0037] Example 2

[0038] The steaming machine heating system for printing provided in Example 1 is further optimized. As Figure 4 shown, a receiving groove 16 and a cleaning roller assembly for cleaning water droplets on the outer wall of the bottom roller 2 are installed on the frame 1. The receiving groove 16 is located below the bottom roller 2. Further, the cleaning roller assembly can be a sponge pad, which is in close contact with the outer wall of the bottom roller 2. The cleaning roller assembly can also be other equivalent parts with water absorption effects.

[0039] Please refer to Figure 6 , the cleaning roller assembly includes a rotating frame 17 rotatably installed on the frame 1, a scraper 18 installed on the rotating frame 17, and a rotating drive cylinder 19 that provides power for the rotation of the rotating frame 17. Further, the rotating drive cylinder 19 is rotatably installed on the frame 1, and the output end of the rotating drive cylinder 19 is hinged to the rotating frame 17.

[0040] The scraper 18 is slidably installed on the rotating frame 17, and an adjusting bolt 20 rotatably connected to the scraper 18 is screwed on the rotating frame 17.

[0041] In the steaming machine heating system for printing provided in this embodiment, after the steam contacts the bottom roller 2, it condenses into water. When the rotating drive cylinder 19 is started, the rotating drive cylinder 19 drives the rotating frame 17 to rotate, so that the scraper 18 contacts the outer wall of the bottom roller 2. The scraper 18 can scrape off the water on the bottom roller 2, avoiding the influence on the color fixing of the color paste on the cloth due to excessive residual water on the bottom roller 2. By rotating the adjusting bolt 20, the contact tightness between the scraper 18 and the outer wall of the bottom roller 2 is adjusted adaptively, ensuring that the scraper 18 scrapes off the water droplets on the outer wall of the bottom roller 2 while avoiding interference with the normal rotation of the bottom roller 2.

[0042] The usage process of the heating system of the steaming machine for printing provided by the present utility model is as follows: The printed fabric passes through between the pressing and permeating roller 4 and the bottom roller 2, and between the pressing and permeating roller 4 and the guiding roller 15. The lifting driving cylinder 5 is started, and the fabric is pressed between the bottom roller 2 and the pressing and permeating roller 4. The printed side of the fabric is in close contact with the outer wall of the pressing and permeating roller 4. Pressurized water is sprayed out from the atomizing nozzles 13 on the spray pipe group 11 and contacts the heating coil 12 to generate water vapor. The fan 10 is started, and the steam generated by the steam generating assembly is blown onto the fabric between the pressing and permeating roller 4 and the bottom roller 2 through the air blowing cover 8. The steam contacts the color paste on the fabric surface. The color paste absorbs water and expands under the conditions of high temperature and high humidity, so that the dye dissolves within the range of the color paste pattern and penetrates into the fabric fiber interior. By starting the vacuum pump 7, negative pressure is generated inside the pressing and permeating roller 4, and the fabric is wrapped around the outer wall of the pressing and permeating roller 4. Under the action of negative pressure, the penetration of the color paste and steam into the fabric can be accelerated. The dye molecules take this opportunity to penetrate deep into the fiber interior and form chemical bonds with the fiber molecules, thereby firmly fixing the dye on the fiber. The excess steam enters the pressing and permeating roller 4 and then flows back into the box body 6. At the same time, part of the steam flows back into the box body 6 through the air collecting cover 9, thus realizing the printing and fixing treatment of the fabric.

[0043] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A steaming machine heating system for printing, characterized in that, It includes a frame (1), a bottom roller (2) rotatably mounted on the frame (1), a lifting and pressing mechanism mounted on the frame (1), and a circulating steam color-fixing mechanism. The lifting and pressing mechanism includes two sliding seats (3) slidably mounted up and down on the frame (1), a pressing and permeating roller (4) rotatably mounted between the two sliding seats (3), and a lifting drive cylinder (5) fixedly mounted on the frame (1) to provide power for the up and down movement of the two sliding seats (3). The circulating steam color-fixing mechanism includes a box body (6) fixedly mounted on the frame (1), a steam generating assembly built in the box body (6), and a vacuum pump (7) fixedly mounted on the box body (6). A blowing hood (8) communicating with the inside of the box body (6) is provided on the box body (6). The outflow end of the blowing hood (8) faces between the bottom roller (2) and the pressing and permeating roller (4). The input end of the vacuum pump (7) is rotatably and sealingly connected to both ends of the pressing and permeating roller (4), and the output end of the vacuum pump (7) extends into the box body (6).

2. The steaming machine heating system for printing according to claim 1, wherein A gas collecting hood (9) extending towards the pressing and permeating roller (4) side and a fan (10) are mounted on the top of the box body (6). The air inlet end of the fan (10) is located in the gas collecting hood (9), and the air outlet end of the fan (10) extends into the box body (6).

3. The steaming machine heating system for printing according to claim 1, characterized in that, The steam generating assembly includes a spray pipe group (11) and a heating coil (12) built in the bottom of the box body (6). A plurality of evenly distributed atomizing nozzles (13) are mounted on the spray pipe group (11).

4. The steaming machine heating system for printing according to claim 1, characterized in that, Sliders (14) are slidably mounted up and down at the sliding seats (3). A guide roller (15) is rotatably mounted between the sliders (14) on the two sliding seats (3). The sliders (14) and the sliding seats (3) are locked by bolts.

5. The steaming machine heating system for printing according to claim 1, characterized in that, A receiving groove (16) and a cleaning roller assembly for cleaning water droplets on the outer wall of the bottom roller (2) are mounted on the frame (1). The receiving groove (16) is located below the bottom roller (2).

6. The steaming machine heating system for printing according to claim 5, characterized in that, The cleaning roller assembly includes a rotating frame (17) rotatably mounted on the frame (1), a scraper (18) mounted on the rotating frame (17), and a rotating drive cylinder (19) for providing power for the rotation of the rotating frame (17).

7. The steaming machine heating system for printing according to claim 6, wherein, The scraper (18) is slidably mounted on the rotating frame (17). An adjusting bolt (20) rotatably connected to the scraper (18) is screwed on the rotating frame (17).

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