Ultrasonic acting unit for printing and dyeing equipment and washing machine

Abstract

The invention discloses an ultrasonic acting unit for printing and dyeing equipment, which is characterized in that an ultrasonic generating device is arranged on one side of a fabric advancing path between an upper row of guide rollers and a lower row of guide rollers, and an overflow water tank is arranged above the ultrasonic generating device; and overflow water flow of the overflow water tank flushes the fabric between the fabric and the ultrasonic generation device. The washing machine adopting the ultrasonic acting unit comprises an upper row of guide rollers and a lower row of guide rollers, and an ultrasonic generating device and an overflow water tank are arranged on one side of a fabric advancing path between the adjacent upper row of guide rollers and lower row of guide rollers. Overflow water of the overflow water tank forms a water film on the surface of the fabric to serve as a transmission medium of ultrasonic waves, and the ultrasonic wave generation device conducts ultrasonic washing on the fabric through the water film. Compared with traditional ultrasonic washing equipment, the ultrasonic excitation energy utilization rate is high, and the washing effect is good. The washing machine adopting the ultrasonic action unit performs ultrasonic washing on the front and back surfaces of the fabric section by section, so that the washing effect is further ensured.

Description

Technical Field

[0001] This invention belongs to the field of printing and dyeing equipment technology, and in particular relates to an ultrasonic action unit and a washing machine for printing and dyeing equipment that utilizes the ultrasonic cavitation effect. Background Technology

[0002] In continuous flat-width production processes, the efficiency of auxiliary agent impregnation and washing determines the overall process efficiency. Due to the tightness of the fabric yarn, padding points are usually used under the liquid during impregnation to help the auxiliaries penetrate the core. Similarly, during washing, in addition to the exchange of water flow, padding points are needed to squeeze out free water, creating a concentration difference between the preceding and following processes to improve the washing rate. The extensive use of high-pressure padding points reduces the fabric's hand feel quality. At the same time, due to the limitations of the physical structure of the padding points, it is necessary to constantly monitor the difference in padding rates on the left and right sides and in the middle to avoid edge-to-center differences. To mitigate these defects caused by padding points, a large number of devices have emerged that utilize the ultrasonic cavitation effect to improve the penetration of auxiliaries into the core, and that utilize the cavitation effect to improve the micro-particle peeling and shedding effect in the washing process.

[0003] Because ultrasound has excellent transmission efficiency in liquids, the ultrasonic transducers in traditional ultrasonic washing machines are usually submerged in the bottom water of the washing tank. The transducers are arranged in an array inside the vibrating box, and the plate on the vibrating box where the transducers are mounted is called the vibrating plate. The vibrating plate faces the fabric and vibrates underwater at intervals of 20-30mm. Since the washing tank can only accept vibration along the path of the fabric passing through from top to bottom, the water level must be raised until the vibrating box is completely submerged. This raises the water level by nearly 500mm. Moreover, because the vibrating box is submerged in the bottom water, the proportion of ultrasonic vibration output power absorbed by the fabric is relatively low, affecting the overall effect. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing ultrasonic washing equipment by providing an ultrasonic action unit and washing machine for printing and dyeing equipment that has high ultrasonic excitation energy utilization, good washing effect, and can ensure the hand feel of the fabric.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An ultrasonic agitation unit for dyeing and printing equipment is characterized by: an ultrasonic generator being installed on one side of the fabric travel path between the upper and lower guide rollers; an overflow water tank being installed above the ultrasonic generator; and the overflow water from the overflow water tank rinsing the fabric between the fabric and the ultrasonic generator. The overflow water from the overflow water tank is poured into the space between the vertically moving fabric and the ultrasonic generator near the fabric surface, forming a water film that acts as the transmission medium for the ultrasonic waves, enabling the vibration energy of the ultrasonic generator to be efficiently transmitted to the fabric. Microparticles, colloids, and oily substances between the fabric yarns are continuously peeled off and detached under the cavitation effect, quickly leaving the fabric with the sprayed water. The ultrasonic excitation energy utilization rate is high, and the washing effect is excellent.

[0006] Preferably, the ultrasonic generator has an angle of 2-3° with the fabric surface. This 2-3° angle makes it easier for overflowing water to form a water film.

[0007] A further feature is that the lower guide roller is disposed within the bottom water tank, and the washing liquid in the bottom water tank is returned to the overflow water tank via a circulation pump; a throttling valve is installed on the return pipe. The washing liquid is recycled, and the overflow water flow rate is adjusted by the throttling valve to regulate the formation of the water film.

[0008] Furthermore: the ultrasonic generator includes a vibrating box housing, an ultrasonic transducer, and a vibrating box plate; the vibrating box housing is completely sealed, and the vibrating box plate faces the fabric; the ultrasonic transducer is disposed inside the vibrating box housing, in close contact with the vibrating box plate. The ultrasonic transducer generates ultrasonic vibrations through the vibrating box plate, which are transmitted to the fabric through a water film to wash the fabric.

[0009] Preferably, the width of the ultrasonic generator covers the width of the fabric, thereby ensuring comprehensive ultrasonic washing of the fabric.

[0010] Furthermore: the driving device of the ultrasonic transducer includes an operating unit, a waveform generator, a regulator, a driver, and a phase compensator; the operating unit controls the waveform generator to generate an oscillating wave, which is then adjusted by the regulator and amplified by the driver, and finally driven to work by the phase compensator after phase compensation. The current and voltage at the load end of the ultrasonic transducer are collected and sent to the power integrator, whose output serves as the feedback input of the regulator, thereby controlling the load power. The collected load current and voltage are simultaneously connected to the phase compensator, which controls the grouping and switching out of the capacitor and inductor groups to make the load resistive.

[0011] Preferably, the overflow trough is arc-shaped, with a width covering the fabric width, and the outer edge of the trough is higher than the inner edge of the trough; the inner edge of the trough forms an overflow outlet.

[0012] A washing machine employing the aforementioned ultrasonic actuation unit is characterized in that: the washing machine includes upper and lower rows of guide rollers, and an ultrasonic generator and an overflow water tank are respectively arranged on one side of the fabric travel path between adjacent upper and lower guide rollers. Multiple ultrasonic actuation units along the fabric travel path perform ultrasonic washing on the fabric segment by segment, thereby ensuring the washing quality.

[0013] Preferably, the ultrasonic generator and the overflow tank are alternately arranged on the front and back sides of the fabric. The ultrasonic generator performs ultrasonic washing on both sides of the fabric respectively, further improving the washing effect.

[0014] Preferably, multiple overflow tanks share a single set of washing liquid return device.

[0015] This invention utilizes the overflow water from an overflow tank to form a water film on the fabric surface, serving as the medium for ultrasonic wave transmission. An ultrasonic wave generator then performs ultrasonic washing on the fabric through this water film. Compared to traditional ultrasonic washing equipment, this invention offers higher ultrasonic excitation energy utilization and better washing results. The washing machine employs an ultrasonic action unit to perform ultrasonic washing on both sides of the fabric segment by segment, further ensuring the washing effect. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the ultrasonic action unit structure of the present invention.

[0017] Figure 2 is a schematic diagram of the drive device for an ultrasonic transducer.

[0018] Figure 3 is a schematic diagram of a washing machine using an ultrasonic action unit. Detailed Implementation

[0019] like Figure 1 As shown, an ultrasonic actuation unit for dyeing and printing equipment includes an ultrasonic generator 7 positioned on one side of the fabric 3's travel path between the upper guide roller 4 and the lower guide roller 2. An overflow trough 6 is positioned above the ultrasonic generator 7. The overflow trough 6 is arc-shaped, its width covering the width of the fabric 3, with the outer edge of the trough higher than the inner edge; the inner edge of the trough forms an overflow outlet 5. The overflow water from the overflow trough 6 washes the fabric 3 between the fabric 3 and the ultrasonic generator 7. The ultrasonic generator 7 and the fabric surface of the fabric 3 have an angle of 2-3°. The overflow water from the overflow trough 6 is poured into the space between the vertically moving fabric surface and the ultrasonic generator 7 near the fabric surface, forming a water film that acts as a medium for transmitting ultrasonic waves, allowing the vibration energy of the ultrasonic generator 7 to be efficiently transmitted to the fabric 3. Microparticles, colloids, and oily substances between the yarns of the fabric 3 are continuously peeled off and detached under the cavitation effect, quickly leaving the fabric with the sprayed water.

[0020] The lower guide roller 2 is installed in the bottom water tank 1. The washing liquid in the bottom water tank 1 is returned to the overflow water tank 6 by the circulation pump 10. A throttle valve 11 is installed on the return pipe. The washing liquid is recycled, and the overflow water flow rate is adjusted by the throttle valve 11 to adjust the formation of the water film.

[0021] The ultrasonic generator 7, covering the width of the fabric 3, includes a vibrating box housing 71, an ultrasonic transducer 72, and a vibrating box plate 73. The vibrating box plate 73 faces the fabric 3; the ultrasonic transducer 72 is disposed inside the vibrating box housing 71, in close contact with the vibrating box plate 73. The ultrasonic transducer 72 generates ultrasonic vibrations through the vibrating box plate 73, which are transmitted to the fabric 3 through a water film for washing. The vibrating box housing 71 is made of 316 stainless steel plate with a thickness of 0.5-2.5mm, with a length equal to the width of the machine roller surface, a width approximately twice the diameter of the ultrasonic transducer 72, and a thickness slightly greater than the height of the ultrasonic transducer 72. The ultrasonic transducers 72 are arranged in a dense array on the inner surface of the vibrating box plate 73 to obtain maximum power density. The vibrating box plate 73, with a length of 1.5m and a width of 0.2m, can accommodate at least 2.8kW ultrasonic transducers. After the ultrasonic transducer 72 is installed in the vibrating box housing 71, all seams are sealed with resin, allowing it to be immersed in liquid for continuous operation.

[0022] like Figure 2 As shown, the driving device for the ultrasonic transducer includes an operating unit, a waveform generator, a regulator, a driver, and a phase compensator. The operating unit controls the waveform generator to produce an oscillating wave, which is then regulated by the regulator, amplified by the driver, and finally driven by the phase compensator after phase compensation. The current and voltage at the load end of the ultrasonic transducer are collected and sent to a power integrator, whose output serves as the feedback input to the regulator, thus controlling the load power. The collected load current and voltage are simultaneously connected to the phase compensator, which controls the switching in and out of the capacitor-inductor group, making the load resistive.

[0023] like Figure 3 As shown, a washing machine employing the aforementioned ultrasonic action unit includes a housing 9 and two rows of upper guide rollers 4 and lower guide rollers 2 disposed within the housing 9. An ultrasonic generator 7 and an overflow water tank 6 are disposed on one side of the fabric 3's travel path between adjacent upper guide rollers 4 and lower guide rollers 2. The ultrasonic generator 7 and overflow water tank 6 are alternately arranged on the front and back sides of the fabric 3. Multiple overflow water tanks 6 share a single set of washing liquid return device. Since each ultrasonic generator 7 has an independent spray overflow water film, a low liquid level method can be used in the washing tank, where the bottom water only needs to submerge the lower guide rollers 2. Multiple ultrasonic action units along the fabric 3's travel path perform ultrasonic washing on both sides of the fabric segment by segment, thereby ensuring washing quality.

[0024] Compared to traditional ultrasonic washing equipment, this invention offers higher ultrasonic excitation energy utilization and better washing results. The washing machine employs ultrasonic action units to perform ultrasonic washing on both sides of the fabric segment by segment, further ensuring the washing effect.

Claims

1. An ultrasonic actuation unit for dyeing and printing equipment, characterized in that: An ultrasonic generator is installed on one side of the fabric travel path between the upper and lower guide rollers. An overflow water tank is installed above the ultrasonic generator, and the overflow water from the overflow water tank washes the fabric between the fabric and the ultrasonic generator.

2. The ultrasonic actuation unit for printing and dyeing equipment as described in claim 1, characterized in that: The ultrasonic generator has an angle of 2-3° with the fabric surface.

3. The ultrasonic actuation unit for printing and dyeing equipment as described in claim 1, characterized in that: The lower guide rollers are installed in the bottom water tank, and the washing liquid in the bottom water tank is returned to the overflow water tank by the circulation pump; a throttling valve is installed on the return pipe.

4. The ultrasonic actuation unit for printing and dyeing equipment as described in any one of claims 1-3, characterized in that: The ultrasonic generator includes a vibrating box housing, an ultrasonic transducer, and a vibrating box plate; the vibrating box housing is completely sealed, and the vibrating box plate faces the fabric; the ultrasonic transducer is disposed inside the vibrating box housing and is in close contact with the vibrating box plate.

5. The ultrasonic actuation unit for printing and dyeing equipment as described in claim 4, characterized in that: The width of the ultrasonic generator covers the width of the fabric.

6. The ultrasonic actuation unit for printing and dyeing equipment as described in claim 4, characterized in that: The driving device for the ultrasonic transducer includes an operating unit, a waveform generator, a regulator, a driver, and a phase compensator. The operating unit controls the waveform generator to generate an oscillating wave, which is then adjusted by the regulator, amplified by the driver, and finally driven to work by the phase compensator after phase compensation. The current and voltage at the load end of the ultrasonic transducer are collected and sent to the power integrator, whose output serves as the feedback input of the regulator, thereby controlling the load power. The collected load current and voltage are simultaneously connected to the phase compensator, which controls the grouping and switching out of the capacitor and inductor groups to make the load resistive.

7. The ultrasonic actuation unit for printing and dyeing equipment as described in any one of claims 1-3, characterized in that: The overflow trough is arc-shaped, with a width covering the width of the fabric, and the outer edge of the trough is higher than the inner edge of the trough; the inner edge of the trough forms an overflow outlet.

8. A washing machine employing the ultrasonic action unit as described in any one of claims 1-7, characterized in that: The washing machine includes two rows of guide rollers, and an ultrasonic generator and an overflow water tank are provided on one side of the fabric travel path between adjacent upper and lower guide rollers.

9. The washing machine as described in claim 8, characterized in that: The ultrasonic generator and the overflow water tank are alternately arranged on the front and back of the fabric.

10. The washing machine as described in claim 8 or 9, characterized in that: Multiple overflow tanks share a single set of washing liquid return device.

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