Control method of clothes treating apparatus

By using an independently operating processing drum in a twin-drum washing machine for eccentricity detection and speed control, the resonance problem during simultaneous spin-drying of the two drums is solved, achieving stable operation and efficient spin-drying.

CN122071844APending Publication Date: 2026-05-22PANASONIC APPLIANCES (CHINA) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC APPLIANCES (CHINA) CO LTD
Filing Date
2024-11-20
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Twin-drum washing machines experience strong vibrations due to the high-speed rotation of both drums during the spin cycle, which affects the lifespan of the washing machine and generates noise. Existing control methods may prevent the rear spin drum from reaching the preset spin speed, resulting in clothes not being fully dried.

Method used

The first and second processing cylinders are operated independently and eccentricity is detected separately. The combined eccentricity value is used to determine whether the multi-cylinder eccentricity threshold is met. This allows the two processing cylinders to reach their maximum speed simultaneously within the resonance allowable range, thus avoiding resonance and ensuring the dehydration effect.

Benefits of technology

Effectively controlling the vibration of the clothes handling unit within the set range ensures that both drums can reach their respective maximum speed, improving the dehydration rate and reducing resonance effects, thus extending the service life of the washing machine.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN122071844A_ABST
Patent Text Reader

Abstract

The invention discloses a control method of a clothes processing device, which comprises the following steps: when a first processing drum needs to execute a processing stage, judging whether a second processing drum which is executing the processing stage reaches the highest rotating speed corresponding to the processing stage or not; if yes, continuously judging until the second processing cylinder completes the processing stage, and allowing the first processing cylinder to execute the processing stage; if not, the second processing cylinder is kept at the current rotating speed, the first processing cylinder and the second processing cylinder execute eccentric detection in the processing stage respectively, the first eccentric value of the first processing cylinder and the second eccentric value of the second processing cylinder are obtained, and whether the multi-cylinder eccentric threshold value is met or not is judged by integrating the first eccentric value and the second eccentric value; and the first processing cylinder and the second processing cylinder execute respective processing stages at the same time and are allowed to rise to the highest rotating speed corresponding to the respective processing stages. The vibration of the clothes processing device can be controlled within a set range, and the two processing drums can reach respective set highest rotating speeds, so that the dehydration rate of clothes is ensured.
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Description

[Technical Field]

[0001] This invention relates to the field of home appliance technology, and more particularly to a control method for a clothing handling device. [Background Technology]

[0002] As people have higher requirements for laundry hygiene, many families require that underwear and outerwear be washed separately, or that adult and children's clothes be washed separately. There are also needs to separate clothes of different colors or materials. In situations with limited space, twin-drum washing machines are becoming increasingly popular. To save space, the two drums of a twin-drum washing machine are generally arranged one above the other.

[0003] When both drums are working simultaneously and both are in the spin-drying stage, the high-speed rotation of the two drums will cause strong vibrations, which will not only generate a lot of noise, but also damage the washing machine and affect its service life.

[0004] Therefore, a control method for twin-drum washing machines is developed to control the simultaneous spin-drying of both drums. Before the drums spin-dry, an eccentricity detection is performed, and the maximum permissible spin speed is determined based on the eccentricity range. The subsequent drum then determines its spin speed based on the speed of the first drum. This solution reduces resonance during simultaneous spin-drying by controlling the speed of the second drum. If the first drum's speed is too high, the second drum may not reach the predetermined spin speed, resulting in clothes not being fully dried. [Summary of the Invention]

[0005] The purpose of this invention is to provide a control method for a garment processing device, which can at least partially solve the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A method for controlling a garment processing device, wherein the garment processing device includes at least:

[0008] The independently operating first processing cylinder can perform at least one processing stage that requires eccentricity detection;

[0009] The independently operating second processing cylinder can perform at least one processing stage that requires eccentricity detection;

[0010] The control method includes:

[0011] When the first processing cylinder needs to perform a processing stage, it is determined whether the second processing cylinder, which is currently performing a processing stage, has reached the maximum rotational speed corresponding to that processing stage;

[0012] If so, the first processing cylinder is allowed to perform the processing stage after the second processing cylinder completes the processing stage;

[0013] If not, the second processing cylinder remains at the current rotation speed. The first and second processing cylinders each perform eccentricity detection in their respective processing stages, obtain the first eccentricity value of the first processing cylinder and the second eccentricity value of the second processing cylinder, and combine the first and second eccentricity values ​​to determine whether the multi-cylinder eccentricity threshold is met. If so, the first and second processing cylinders simultaneously perform their respective processing stages and are allowed to rise to the highest rotation speed corresponding to their respective processing stages.

[0014] In the control method of the above-mentioned garment processing device, the current rotation speed of the second processing drum is not lower than the critical rotation speed at which the garment adheres tightly to the wall of the second processing drum.

[0015] In the control method of the above-mentioned clothing processing device, the second processing drum maintains the current rotation speed. When the first processing drum reaches the first rotation speed, the first processing drum and the second processing drum simultaneously increase their speed and simultaneously reach the maximum rotation speed corresponding to their respective processing stages.

[0016] The first rotational speed is calculated from the time it takes for the current rotational speed of the second processing cylinder to reach its corresponding maximum rotational speed.

[0017] In the control method of the above-mentioned clothing processing device, when the first processing tube needs to perform the processing stage, it is first determined whether the second processing tube is in the processing stage;

[0018] If so, determine whether the second processing cylinder in the current processing stage has reached the maximum rotational speed corresponding to that processing stage;

[0019] If not, allow the first processing cylinder to perform the processing phase.

[0020] In the control method of the above-mentioned clothing processing device, the first processing drum performs eccentricity detection during the processing stage to obtain a first eccentricity value. Under the condition that the first eccentricity value satisfies the first single-drum eccentricity threshold, the processing stage is performed, and the maximum rotation speed corresponding to the rising processing stage is allowed.

[0021] In the above-mentioned control method of the garment processing device, the determination of whether the second processing drum is in the processing stage is based on the detection of the eccentricity value by the garment processing device: the eccentricity value of the second processing drum during operation is detected in real time, and when a valid eccentricity value is detected, the second processing drum is determined to be in the processing stage.

[0022] Alternatively, the determination of whether the second processing cylinder is in the processing stage is based on the judgment of the processing stage time progress: when the actual running time of the second processing cylinder reaches the processing stage time progress, it is determined that the second processing cylinder is in the processing stage.

[0023] In the control method of the above-mentioned clothing processing device, when the set multi-tube eccentricity threshold is not met, the first processing tube is adjusted and the first eccentricity value is obtained again.

[0024] In the control method of the above-mentioned clothing processing device, the eccentricity detection of the first processing drum is to run the first processing drum at an eccentricity detection speed and detect the eccentricity value.

[0025] When the set multi-tube eccentricity threshold is not met, the first processing tube drops to below the critical speed at which the clothes are in close contact with the wall of the first processing tube and then rises to the eccentricity detection speed to re-acquire the first eccentricity value.

[0026] The eccentric detection speed is not lower than the critical speed at which the clothing adheres tightly to the wall of the first processing drum.

[0027] In the control method of the above-mentioned garment handling device, the step of determining whether the multi-tube eccentricity threshold is met by combining the first eccentricity value and the second eccentricity value includes:

[0028] The first eccentricity value is set to a, the second eccentricity value is set to b, and the multi-cylinder eccentricity threshold is set to c;

[0029] It satisfies a+b≤c; or it satisfies a*b≤c.

[0030] In the control method of the above-mentioned garment processing device, the processing stage includes a dehydration stage and / or a fabric quantity detection stage.

[0031] The beneficial effects of this invention are:

[0032] Initially, the first processing drum vibrates significantly to adjust the distribution of clothes inside. When the second processing drum is detected to be at its maximum speed, to avoid disrupting its balance during dehydration and preventing excessive resonance between the first and second processing drums, the first drum waits until the second drum completes its processing stage before entering the next stage. If the second processing drum is not at its maximum speed, it maintains its current speed, and both drums undergo eccentricity detection. If the combined eccentricity values ​​of both drums meet the multi-drum eccentricity threshold, the resonance generated by both drums entering the processing stage simultaneously is within the design limits. Therefore, each drum can then reach its corresponding maximum speed. By determining the operating mode of the first processing drum based on its state when it enters the processing stage, the vibration of the clothing processing device can be controlled within a set range, and both drums can reach their respective maximum speeds, thus ensuring the optimal dehydration rate of the clothes.

[0033] In a further embodiment, the current rotational speed of the second processing drum is not lower than the critical rotational speed required to keep the clothing in close contact with the drum wall. Once the rotational speed of the second processing drum meets the above condition, the clothing will rotate along with the drum wall when the second processing drum rotates, thereby obtaining a relatively stable eccentricity value for subsequent program judgment.

[0034] In a further embodiment, the second processing drum maintains its current rotational speed. When the first processing drum reaches the first rotational speed, both the first and second processing drums simultaneously increase their speeds and simultaneously reach the maximum rotational speed corresponding to their respective processing stages. The first rotational speed is calculated from the time it takes for the second processing drum to reach its corresponding maximum rotational speed. The simultaneous rise of both processing drums and their simultaneous attainment of the maximum rotational speed corresponding to their respective processing stages, along with their combined acceleration, increases the centrifugal force generated by the upper and lower parts of the garment processing device. This helps maintain the balance of the garment processing device during the process, making its operation more stable.

[0035] In a further embodiment, when the first processing cylinder needs to perform a processing stage, it first determines whether the second processing cylinder is already in a processing stage. If so, it determines whether the second processing cylinder currently performing the processing stage has reached the maximum rotational speed corresponding to that stage. If not, the first processing cylinder is allowed to perform the processing stage. When the first processing cylinder is about to enter a processing stage, the current state of the second processing cylinder is determined in more detail, allowing the first processing cylinder to select the corresponding operating state more quickly.

[0036] In a further embodiment, the first processing cylinder performs eccentricity detection during the processing stage to obtain a first eccentricity value. The processing stage is executed only when the first eccentricity value meets a first single-cylinder eccentricity threshold, and the maximum rotational speed corresponding to the processing stage is allowed to increase. When the second processing cylinder is not in the processing stage, the first processing cylinder entering the processing stage and meeting the first single-cylinder eccentricity threshold satisfies the single-cylinder vibration range set by the system. Furthermore, the first processing cylinder can increase to the maximum allowed rotational speed to ensure the dehydration rate of the first processing cylinder.

[0037] In a further scheme, determining whether the second processing drum is in the processing stage is based on the detection of eccentricity value by the garment processing device: the eccentricity value of the second processing drum is detected in real time, and when a valid eccentricity value is detected, the second processing drum is determined to be in the processing stage; or, determining whether the second processing drum is in the processing stage is based on the judgment of the processing stage time progress: when the actual running time of the second processing drum reaches the processing stage time progress, the second processing drum is determined to be in the processing stage. These two different methods for determining whether the second processing drum is in the processing stage are: one is based on eccentricity value judgment, since the processing drum only generates a large eccentricity value during the fabric weight judgment and dehydration stages, therefore, the magnitude of the eccentricity value can clearly indicate whether the processing drum is currently in the processing stage. This method, by directly detecting the second eccentricity value, avoids interference from other data or unexpected situations, making the determination of whether the second processing drum is in the processing stage the most accurate; the other is based on time judgment, since the processing flow and processing time in the garment processing device correspond one-to-one, the time of the processing stage can accurately determine whether the current second processing drum is in the processing stage, and the judgment logic is relatively simple.

[0038] In a further embodiment, when the set multi-cylinder eccentricity threshold is not met, the first processing cylinder is adjusted and the first eccentricity value is reacquired. At this time, the first processing cylinder has just entered the processing stage and its rotation speed is not fast, while the second processing cylinder is already in the processing stage. The above method can avoid the second processing cylinder slowing down and shorten the overall processing stage time.

[0039] In a further embodiment, the eccentricity detection of the first processing drum involves running the first processing drum at an eccentricity detection speed and detecting the eccentricity value. When the set multi-drum eccentricity threshold is not met, the first processing drum speed drops below the critical speed at which the clothing adheres tightly to the drum wall and then rises back to the eccentricity detection speed to re-obtain the first eccentricity value. The eccentricity detection speed is not lower than the critical speed at which the clothing adheres tightly to the drum wall. When the speed of the first eccentric drum drops below the critical speed at which the clothing adheres tightly to the drum wall, the clothing will roll relative to the first processing drum, readjusting the distribution of the clothing within the first processing drum and obtaining a new first eccentricity value, thereby satisfying the multi-drum eccentricity threshold.

[0040] In a further embodiment, the determination of whether the multi-tube eccentricity threshold is satisfied by combining the first eccentricity value and the second eccentricity value includes: setting the first eccentricity value as 'a', the second eccentricity value as 'b', and the multi-tube eccentricity threshold as 'c'; satisfying a + b ≤ c; or satisfying a * b ≤ c. These two different methods for determining whether the first eccentricity value and the second eccentricity value satisfy the multi-tube eccentricity threshold have simple logic and can quickly yield the results.

[0041] In a further embodiment, the processing stage includes a dehydration stage and / or a fabric quantity detection stage. Both the dehydration stage and the fabric quantity detection stage require the processing cylinders to rotate at high speeds. Therefore, eccentricity detection needs to be performed in at least one of these stages to ensure that when two processing cylinders need to enter the processing stage simultaneously, their respective eccentricity values ​​can be obtained for a comprehensive judgment on whether the multi-cylinder eccentricity threshold is met.

[0042] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0043] The invention will be further described below with reference to the accompanying drawings:

[0044] Figure 1 The flow chart of the control method for the garment handling device of the present invention Figure 1 ;

[0045] Figure 2 The flow chart of the control method for the garment handling device of the present invention Figure 2 ;

[0046] Figure 3 This is a flowchart of the process stage where the first processing cylinder performs processing alone in this invention.

Detailed Implementation Methods

[0047] A control method for a garment processing device, the garment processing device comprising at least: a first processing drum that operates independently and is capable of performing at least one processing stage requiring eccentricity detection; and a second processing drum that operates independently and is capable of performing at least one processing stage requiring eccentricity detection.

[0048] The control method includes: when the first processing cylinder needs to perform a processing stage, determining whether the second processing cylinder currently performing the processing stage has reached the maximum rotational speed corresponding to that processing stage; if yes, then after the second processing cylinder completes the processing stage, the first processing cylinder is allowed to perform the processing stage; if no, the second processing cylinder remains at its current rotational speed, and the first and second processing cylinders each perform eccentricity detection of the processing stage, obtaining a first eccentricity value of the first processing cylinder and a second eccentricity value of the second processing cylinder, and combining the first and second eccentricity values ​​to determine whether the multi-cylinder eccentricity threshold is met; if yes, then the first and second processing cylinders simultaneously perform their respective processing stages and are allowed to rise to the maximum rotational speed corresponding to their respective processing stages.

[0049] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0050] The garment processing device includes at least: a first processing drum that operates independently and can perform at least one processing stage requiring eccentricity detection; and a second processing drum that operates independently and can perform at least one processing stage requiring eccentricity detection.

[0051] The eccentricity detection stage differs from other stages of the washing drum (such as washing / rinsing). It requires the drum to rotate at high speed or accelerate to perform dehydration or fabric weight detection. Eccentricity detection is introduced to obtain an eccentricity value that reflects the distribution of clothes in the drum. When the eccentricity value is large, it indicates that the clothes are unevenly distributed in the washing drum. For single-drum washing devices, the distribution of clothes can be readjusted to make the eccentricity value meet the set threshold. For multi-drum washing devices, when multiple drums need to perform the above-mentioned processing stage at the same time, the vibration of multiple drums will superimpose and cause resonance problems. Unless multiple drums are prevented from performing the processing stage at the same time as in existing technologies, which would prolong the user's waiting time, or the maximum speed of a single drum is controlled, the speed-limited drum will not be able to achieve the expected processing effect.

[0052] In this embodiment, it is not necessary to limit the rotational speed of the first and second processing drums. As mentioned above, the eccentricity value only reflects the distribution of clothing within the drum. Vibration occurs during high-speed / accelerated operation in the processing stage. As long as the eccentricity value meets the requirements, the vibration of the processing drum during high-speed / accelerated operation in the processing stage is controlled. Existing technology cannot solve the resonance problem by adjusting the rotational speed of the processing drum. However, in this embodiment, by adjusting the eccentricity value of the processing drum, under the condition that the first and second eccentricity values ​​meet the multi-drum eccentricity threshold, the first and second processing drums are allowed to simultaneously perform the above-mentioned processing stage. This allows the resonance to be controlled within an acceptable range, while enabling both the first and second processing drums to reach their respective maximum rotational speeds, ensuring the clothing processing effect. This multi-drum eccentricity threshold can be set by comprehensively considering motor load, vibration noise, and other requirements, and the resonance is controlled within an acceptable range.

[0053] For ease of explanation, the processing stage requiring eccentricity detection described in this embodiment is the dehydration stage.

[0054] like Figure 1As shown, the control method of the garment processing device includes determining whether the second processing drum, which is currently performing the dehydration stage, has reached the maximum rotational speed corresponding to that stage when the first processing drum needs to perform the dehydration stage. If it has, there is no need to reduce the rotational speed of the second processing drum, avoiding the second processing drum from slowing down and then accelerating again. The second processing drum maintains that rotational speed to continue performing the dehydration stage. At this time, the first processing drum is in a waiting state, and the dehydration stage will only begin after the second processing drum completes its dehydration stage. This avoids the vibration generated by the first processing drum adjusting the distribution of clothes within the drum during the initial stage of the dehydration stage, which could affect the balance of the second processing drum, thus preventing significant vibration in the garment processing device.

[0055] If the first processing drum needs to perform the dehydration stage, but the second processing drum has not reached its maximum speed, the current speed of the second processing drum is maintained, and eccentricity detection is performed on the second processing drum to obtain its eccentricity value. At the same time, the first processing drum is also made to reach the eccentricity detection speed to perform eccentricity detection and obtain its first eccentricity value. The first and second eccentricity values ​​are combined to determine whether the multi-drum eccentricity threshold is met. The multi-drum eccentricity threshold is a threshold determined based on multiple reference factors of the garment processing device. As long as the multi-drum eccentricity threshold is met when the first and second processing drums perform the dehydration stage simultaneously, it means that the first and second processing drums can reach their maximum speed in their respective dehydration stages, ensuring the dehydration rate of the first and second processing drums, and the vibration generated by their simultaneous operation is within the allowable range of the garment processing device.

[0056] If the combined first and second eccentricity values ​​indicate that the multi-drum eccentricity threshold is not met, since the second eccentric drum is already in the dehydration stage while the first eccentric drum has just started, and its rotation speed is relatively lower, the rotation speed of the first eccentric drum is adjusted to redistribute the position of the clothes inside the first eccentric drum, obtain a new first eccentricity value, and then combine the first and second eccentricity values ​​to determine whether the multi-drum eccentricity threshold is met. If it is still not met, the first eccentric drum is adjusted further.

[0057] Furthermore, the eccentricity detection of the first processing drum involves running the drum at an eccentricity detection speed and detecting the eccentricity value. This detection speed is not lower than the critical speed at which the clothing adheres tightly to the drum wall. In other words, at the eccentricity detection speed, the clothing must adhere tightly to the drum wall and rotate with the drum. Because the clothing is close to the wall, it will not roll relative to the wall, and the eccentricity value will stabilize. When the set multi-drum eccentricity threshold is not met, the position of the clothing within the first eccentric drum needs to be redistributed. This is done by reducing the speed of the first eccentric drum below the critical speed at which the clothing adheres tightly to the drum wall. At this point, the clothing will roll relative to the wall, thus redistributing its position within the first eccentric drum. Then, the speed of the first eccentric drum is increased back to the eccentricity detection speed, and the first eccentricity value is obtained again. This process is repeated until the multi-drum eccentricity threshold is met.

[0058] The determination of whether the multi-drum eccentricity threshold is met by combining the first and second eccentricity values ​​includes: assuming the first eccentricity value is set to 'a', the second eccentricity value to 'b', and the multi-drum eccentricity threshold to 'c'; and satisfying a + b ≤ c. For example, if the multi-drum eccentricity threshold is set to 10, and the second processing drum is detected to be running with a second eccentricity value of 6, then the second processing drum will run at the maximum speed set in the program. If the first processing drum initially detects a first eccentricity value of 5, then first eccentricity value 5 + second eccentricity value 6 > multi-drum eccentricity threshold 10. At this point, the second processing drum maintains its previous state and continues running in the dehydration stage, while the first processing drum slows down to below the critical speed. At this point, the clothes inside the first processing drum will not rotate synchronously with the first processing drum, and the clothes will redistribute within the first processing drum. After the first processing drum speeds up above the critical speed, the first eccentricity value is re-detected until the first eccentricity value a ≤ 4, satisfying a + b ≤ c. Afterward, the first processing drum will run at the speed set in the dehydration stage program. In addition to using a+b≤c, it is also possible to determine whether a*b≤c is satisfied. Of course, the value of the multi-tube eccentricity threshold under this judgment rule is different from the value of the multi-tube eccentricity threshold determined by the sum of the first eccentricity value and the second eccentricity value. The specific value of the multi-tube eccentricity threshold is determined comprehensively based on the judgment method and parameters such as the safe operation status of the garment processing device.

[0059] In the above embodiment, the current rotational speed of the second processing drum is not lower than the critical rotational speed at which the clothes are pressed tightly against the wall of the second processing drum. In other words, it is necessary to ensure that when the second processing drum rotates at the current rotational speed, the clothes will not roll relative to the wall of the second processing drum. The clothes are pressed tightly against the wall of the second processing drum and the two remain relatively stationary so that the second processing drum can obtain a stable second eccentricity value.

[0060] Furthermore, the second processing cylinder maintains its current rotational speed, while the first processing cylinder reaches the first rotational speed V. A At the same time, the first and second processing cylinders simultaneously increase their speed and simultaneously reach the maximum speed corresponding to their respective processing stages; the first speed VA The current rotational speed V of the second processing cylinder B The time T required to reach its corresponding maximum speed is calculated. For example, the current speed V of the second processing cylinder. B The maximum rotational speed of the second processing cylinder during the processing stage is V. B Since the acceleration of the second processing cylinder is constant, the acceleration of the second processing cylinder from the current rotational speed V can be calculated. B Accelerate to maximum speed V B The time T is known; and the acceleration of the first processing cylinder and the maximum rotational speed V of the first processing cylinder during the processing stage are also known. A ', based on time T and maximum speed V A The initial velocity V of the simultaneous acceleration of the first and second processing cylinders can be calculated from the acceleration of the first processing cylinder and the first processing cylinder. A At this time, the first and second processing cylinders accelerate simultaneously, which can keep the center of gravity of the entire garment processing device stable and reduce resonance of the garment processing device.

[0061] like Figure 2 As shown, in the above embodiment, before determining whether the second processing cylinder, which is currently in the dehydration stage, has reached the maximum speed corresponding to the dehydration stage, it is first determined whether the second processing cylinder is in the dehydration stage. If the second processing cylinder is already in the dehydration stage, it is then determined whether the second processing cylinder has reached the maximum speed of the dehydration stage. If the second processing cylinder has not yet entered the dehydration stage, the first processing cylinder is allowed to perform the dehydration stage. In this way, since the second processing cylinder has not entered the execution stage, it will not resonate with the first processing cylinder, and the first processing cylinder can perform without being restricted by the state of the second processing cylinder.

[0062] like Figure 3 As shown, when the second processing drum is not in the processing stage, its state will not significantly affect the vibration of the entire garment processing device. The vibration impact mainly comes from the first processing drum in the processing stage. Therefore, when the second processing drum is not in the processing stage, the first processing drum performs the dehydration stage under the condition that the first eccentricity value meets the first single-drum eccentricity threshold, which ensures that the vibration of the garment processing device is within the design range. Specifically, the first processing drum is first accelerated to the eccentricity detection speed to obtain the first eccentricity value. Then, it is compared to see if the first eccentricity value meets the first single-drum eccentricity threshold. If it does, the first processing drum begins the dehydration stage; if not, the first processing drum is reduced to below the critical speed at which the garment adheres tightly to the drum wall, allowing the garment to be rearranged within the drum. The speed is then increased back to the eccentricity detection speed to obtain the first eccentricity value again, and then it is determined whether the first single-drum eccentricity threshold is met, until the first single-drum eccentricity threshold is satisfied.

[0063] The specific methods for determining whether the second treatment chamber is in the dehydration stage include, but are not limited to, the following:

[0064] 1. When the actual running time of the second processing tank reaches the dehydration stage, it is determined that the second processing tank is in the dehydration stage. Because the processing tank's operating program has a time limit, the current operating status of the second processing tank can be accurately determined by time. In other words, time can clearly indicate whether the second processing tank is already in the dehydration stage when the first processing tank is about to enter it. This method avoids continuously monitoring the second processing tank's operating data; determining the status by time is logically simple in terms of program judgment.

[0065] II. Real-time detection of the eccentricity value during the operation of the second processing drum. When a valid eccentricity value is detected, the second processing drum is determined to be in the dehydration stage. This method is not time-constrained but rather judges based on the actual operating conditions of the second processing drum. During the dehydration stage, where eccentricity detection is required, the eccentricity value of the second processing drum will be relatively large; while during the washing stage, the drum rotates slowly, and the eccentricity value will be very small. By collecting a certain amount of data, the threshold value of the eccentricity value when the second processing drum is in the dehydration stage and not in the dehydration stage can be distinguished. By comparing the real-time detected eccentricity value of the second processing drum with the threshold value, it is possible to accurately determine whether the second processing drum is in the dehydration stage. This method directly judges based on the eccentricity value of the second processing drum, providing a more realistic and accurate assessment of its operating status.

[0066] In the above embodiments, the processing stage includes a dehydration stage and / or a fabric weight detection stage. During these two stages, the rotation speed of the processing drum is relatively fast, resulting in a significant eccentricity value and the most noticeable vibration to the entire garment processing device. Alternatively, the processing stage can also be the foaming stage of washing. The resonance caused by both processing drums being in the processing stage simultaneously is the greatest. Therefore, when one processing drum is in the dehydration stage or the fabric weight detection stage, the other processing drum that enters the processing stage later will adjust its own eccentricity value so that the first eccentricity value and the second eccentricity value satisfy the multi-drum eccentricity threshold.

[0067] In the above embodiments, if the first processing cylinder performs the processing stage first, and the second processing cylinder needs to perform the processing stage during this process, the positions of the first and second processing cylinders in the above embodiments are interchanged. That is, it is determined whether the first processing cylinder performing the processing stage has reached the maximum speed corresponding to the processing stage. If yes, the second processing cylinder is allowed to perform the processing stage after the first processing cylinder completes the processing stage. If no, the first processing cylinder remains at the current speed, and the first and second processing cylinders each perform eccentricity detection of the processing stage, obtain the first eccentricity value of the first processing cylinder and the second eccentricity value of the second processing cylinder, and combine the first eccentricity value and the second eccentricity value to determine whether the multi-cylinder eccentricity threshold is met. If yes, the first and second processing cylinders simultaneously perform their respective processing stages and are allowed to rise to the maximum speed corresponding to their respective processing stages.

[0068] The control method of the aforementioned garment processing device first determines whether the second processing drum has reached its maximum speed, thereby selecting when the first processing drum should begin its processing stage. When the second processing drum has already reached its maximum speed, the first processing drum pauses its entry into the processing stage. This avoids vibrations generated during the initial stage of the first processing drum disrupting the high-speed operation balance of the second processing drum, and also eliminates the need for the second processing drum to slow down to match the first. Both drums enter their respective processing stages without interfering with each other. If the second processing drum has not yet reached its maximum speed when the first processing drum is about to enter its processing stage, then, provided the multi-drum eccentricity threshold is met, both drums execute their respective processing stages, reaching their maximum permissible speed for that stage, thus ensuring that both drums achieve the set dehydration rate.

[0069] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the present invention will be included within the scope of the claims.

Claims

1. A control method for a garment handling device, characterized in that, The garment processing device includes at least: The independently operating first processing cylinder can perform at least one processing stage that requires eccentricity detection; The independently operating second processing cylinder can perform at least one processing stage that requires eccentricity detection; The control method includes: When the first processing cylinder needs to perform a processing stage, it is determined whether the second processing cylinder, which is currently performing a processing stage, has reached the maximum rotational speed corresponding to that processing stage; If so, the first processing cylinder is allowed to perform the processing stage after the second processing cylinder completes the processing stage; If not, the second processing cylinder remains at the current rotation speed. The first and second processing cylinders each perform eccentricity detection in their respective processing stages, obtain the first eccentricity value of the first processing cylinder and the second eccentricity value of the second processing cylinder, and combine the first and second eccentricity values ​​to determine whether the multi-cylinder eccentricity threshold is met. If so, the first and second processing cylinders simultaneously perform their respective processing stages and are allowed to rise to the highest rotation speed corresponding to their respective processing stages.

2. The control method of the garment handling device as described in claim 1, characterized in that, The current rotational speed of the second processing drum is not lower than the critical rotational speed required to make the clothes adhere tightly to the wall of the second processing drum.

3. The control method of the garment handling device as described in claim 2, characterized in that, The second processing cylinder maintains the current rotation speed. When the first processing cylinder reaches the first rotation speed, the first and second processing cylinders simultaneously increase their speed and simultaneously reach the maximum rotation speed corresponding to their respective processing stages. The first rotational speed is calculated from the time it takes for the current rotational speed of the second processing cylinder to reach its corresponding maximum rotational speed.

4. The control method of the garment handling device as described in claim 1, characterized in that, When the first processing cylinder needs to perform a processing stage, it first determines whether the second processing cylinder is in a processing stage. If so, determine whether the second processing cylinder in the current processing stage has reached the maximum rotational speed corresponding to that processing stage; If not, allow the first processing cylinder to perform the processing phase.

5. The control method of the garment handling device as described in claim 4, characterized in that, The first processing cylinder performs eccentricity detection during the processing stage to obtain a first eccentricity value. Under the condition that the first eccentricity value meets the first single-cylinder eccentricity threshold, the processing stage is executed, and the maximum rotational speed corresponding to the rising processing stage is allowed.

6. The control method of the garment handling device as described in claim 4, characterized in that, The determination of whether the second processing drum is in the processing stage is based on the detection of the eccentricity value by the clothing processing device: the eccentricity value of the second processing drum is detected in real time during operation, and when a valid eccentricity value is detected, the second processing drum is determined to be in the processing stage; Alternatively, the determination of whether the second processing cylinder is in the processing stage is based on the judgment of the processing stage time progress: when the actual running time of the second processing cylinder reaches the processing stage time progress, it is determined that the second processing cylinder is in the processing stage.

7. The control method of the garment handling device as described in claim 1, characterized in that, When the set multi-cylinder eccentricity threshold is not met, the first processing cylinder is adjusted and the first eccentricity value is reacquired.

8. The control method of the garment handling device as described in claim 7, characterized in that, The eccentricity detection of the first processing cylinder is achieved by running the first processing cylinder at an eccentricity detection speed and detecting the eccentricity value; When the set multi-tube eccentricity threshold is not met, the first processing tube drops to below the critical speed at which the clothes are in close contact with the wall of the first processing tube and then rises to the eccentricity detection speed to re-acquire the first eccentricity value. The eccentric detection speed is not lower than the critical speed at which the clothing adheres tightly to the wall of the first processing drum.

9. The control method of the garment handling device as described in claim 1, characterized in that, The determination of whether the multi-cylinder eccentricity threshold is met by combining the first eccentricity value and the second eccentricity value includes: The first eccentricity value is set to a, the second eccentricity value is set to b, and the multi-cylinder eccentricity threshold is set to c; It satisfies a+b≤c; or it satisfies a*b≤c.

10. The control method of the garment handling device as described in claim 1, characterized in that, The processing stage includes a dehydration stage and / or a fabric quantity detection stage.