Laundry treating apparatus and control method thereof

Abstract

The present application provides a kind of clothes processing equipment and its control method, in eccentric detection stage includes the following steps: the distributed rotational speed of the inner tube of clothes processing equipment is obtained, and the distributed rotational speed is greater than the critical rotational speed of load sticking inner tube wall rotates with inner tube;Control the rotational speed of inner tube reaches distributed rotational speed, and is maintained at distributed rotational speed rotation;Obtain the eccentric characteristic of inner tube, and compare with preset condition;When judging that eccentric characteristic does not meet preset condition, increase the rotational speed of inner tube, so that eccentric characteristic meets preset condition.The present application solves the problem that load cannot be accurately measured eccentric value due to the slip of inner tube wall, according to the eccentric characteristic obtained as the judgment condition, adaptively improve the rotational speed of inner tube, so that load can be more quickly stick wall, not only optimize the distribution of load, but also obtain accurate eccentric detection, so as to execute the dehydration operation corresponding to eccentric value, improve the efficiency of dehydration.

Description

Technical Field

[0001] This invention belongs to the field of garment processing technology, specifically, it relates to a garment processing device, and more particularly to a garment processing device with no inner drum lifting ribs and its control method. Background Technology

[0002] Typically, drum washing machines have lifting ribs on the inner drum. These ribs are usually protruding ribs that extend towards the center of the drum, with multiple ribs arranged at predetermined intervals. As the drum rotates, they lift the clothes to a specific height before dropping them, effectively "tumbling" the clothes, increasing friction and water flow impact, thereby improving cleaning power, preventing clothes from slipping inside the drum, and ensuring even force distribution. These lifting ribs are crucial for clothes that need to be rearranged.

[0003] However, the design of the lifting ribs also has some drawbacks, such as: increased cost; potential wear and tear on delicate fabrics (such as silk and wool), leading to pilling or fiber damage; the collision between the clothes and the lifting ribs during high-speed operation may generate significant noise; and the raised structure of the lifting ribs will occupy the internal space of the inner drum, potentially reducing the actual amount of clothing that can be accommodated.

[0004] To achieve a balance between efficient washing and low damage, drum washing machines without lifting ribs were developed. However, during the development of drum washing machines without lifting ribs, it was discovered that due to the lack of lifting ribs, clothes easily slip or tumble inside the drum. Especially during spin-drying, as the drum accelerates to its distributed rotation speed, the slipping or tumbling of the clothes prevents them from effectively rotating with the drum, making it impossible to obtain an accurate eccentricity value. This results in spending more time in the eccentricity detection stage and even preventing the spin-drying process from being completed smoothly.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The primary objective is to provide a control method for clothing processing equipment, so that the load is stably attached to the inner cylinder wall and rotates with the inner cylinder, thereby obtaining an accurate eccentric value.

[0007] The second objective of this invention is to provide a garment processing device.

[0008] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a control method for clothing processing equipment, which includes the following steps in the eccentricity detection stage:

[0009] S1. Obtain the distributed rotation speed of the inner drum of the garment processing equipment. The distributed rotation speed is greater than the critical rotation speed at which the load adheres to the inner drum wall and rotates together with the inner drum.

[0010] S2. Control the inner cylinder speed to reach the distributed speed and maintain it at the distributed speed;

[0011] S3. Obtain the eccentricity characteristics of the inner cylinder and compare them with preset conditions;

[0012] S4. If the eccentricity characteristic does not meet the preset conditions, increase the inner cylinder speed so that the eccentricity characteristic meets the preset conditions.

[0013] This invention ensures that the probability of the load sticking to the cylinder wall is increased at the start of eccentricity detection by setting a distribution speed higher than the critical speed, thus eliminating the problem of excessively long eccentricity detection time caused by load slippage. While maintaining the distribution speed, it continuously detects eccentricity characteristics and dynamically judges the load distribution state, providing a reliable basis for subsequent control. By adaptively adjusting the speed, it effectively and quickly solves the problem of inaccurate eccentricity detection caused by load slippage.

[0014] A further solution is that, in step S4, when it is determined that the eccentricity characteristic does not meet the preset conditions, increasing the inner cylinder rotation speed includes:

[0015] S41. Obtain the new distribution rotation speed;

[0016] S42. Control the inner cylinder to accelerate to a new distribution speed and maintain it at the new distribution speed, then obtain the eccentricity feature of the inner cylinder again and compare it with the preset conditions.

[0017] S43. If the eccentric feature does not meet the preset conditions, then repeat steps S41 and S42 until the eccentric feature meets the preset conditions.

[0018] The control method of this invention achieves speed gradient optimization through multi-stage acceleration cycles, avoiding excessive single acceleration that could lead to increased energy consumption or impact on the drive motor load. It also ensures that the load status is reassessed after each adjustment, thereby improving the accuracy and stability of the control.

[0019] A further solution is that step S41, obtaining the new distributed rotational speed, includes:

[0020] Calculated based on a preset function;

[0021] Alternatively, it can be obtained based on the preset relationship between the number of accelerations and the new distributed rotational speed;

[0022] Preferably, the new distributed rotational speed is calculated based on a preset function, where the preset function is V. i =V (i-1) +ΔV, where ΔV is a preset value, i is the number of acceleration cycles, and V i V represents the new distributed rotational speed after the i-th acceleration. (i-1) V0 represents the current distributed rotational speed, where V0 is the preset initial distributed rotational speed during the first speed increase.

[0023] This invention employs a preset function V i =V (i-1) +ΔV provides a simple and effective calculation method, ensuring that the acceleration process is controllable and predictable; while the scheme of the correspondence between the number of accelerations and the rotation speed can provide flexible adjustment space for the acceleration process, enhancing the adaptability of this invention to different models of clothing processing equipment or different programs.

[0024] A further proposed solution is that, after obtaining the new distribution rotation speed in step S41, the following steps are included:

[0025] S411. Compare the new distributed rotational speed with the preset rotational speed threshold;

[0026] S412. If the new distributed rotation speed is less than the preset rotation speed threshold, then execute step S42. If the new distributed rotation speed is not less than the preset rotation speed threshold, then control the inner cylinder to stop rotating and switch the inner cylinder rotation mode so that the load in the inner cylinder adheres to the inner cylinder wall and rotates together with the inner cylinder.

[0027] This invention prevents the equipment from overloading due to unlimited speed increase by setting a speed threshold, thus ensuring equipment safety; at the same time, it also avoids the eccentric detection process from being extended indefinitely, thus prolonging the dehydration time.

[0028] A further solution is that step S412, switching the inner cylinder rotation mode so that the load in the inner cylinder rotates along with the inner cylinder wall, includes:

[0029] S4121, Control the inner cylinder to rotate in the opposite direction until the set conditions are met;

[0030] S4122: Control the inner cylinder to reverse direction and accelerate rotation again, rotating to the preset target speed, which is greater than the distributed speed;

[0031] S4123. Control the inner cylinder to reduce its speed to the distributed rotation speed, and return to step S2;

[0032] Alternatively, steps S4122 and S4123 can be replaced with: controlling the inner cylinder to reverse direction and accelerate rotation again, returning to step S2;

[0033] Preferably, the acceleration of controlling the inner cylinder to rotate in the opposite direction in step S4121 is less than the acceleration of the inner cylinder when the rotational speed reaches the distributed rotational speed in step S2.

[0034] Preferably, the acceleration of the inner cylinder in step S4122 when it reverses direction and accelerates rotation is greater than the acceleration of the inner cylinder when its rotational speed reaches the distributed rotational speed in step S2.

[0035] Preferably, in step S4122, the acceleration of the inner drum to change direction and accelerate rotation again is the maximum acceleration allowed by the drive motor of the garment processing equipment.

[0036] This invention controls the rotation of the inner cylinder by reversing rotation and using different accelerations, which fundamentally increases the probability of the load sticking to the cylinder wall and improves the efficiency of speed adjustment while reducing load wear.

[0037] A further solution is that the conditions set in step S4121 include:

[0038] The angle at which the inner cylinder rotates in the opposite direction is set, or the time at which the inner cylinder rotates in the opposite direction is set, or the speed at which the inner cylinder rotates in the opposite direction is accelerated to a set speed.

[0039] A further solution is that step S412, switching the inner cylinder rotation mode, includes: first controlling the inner cylinder to perform a load unwinding operation.

[0040] This invention raises the load to a certain height in the opposite direction by controlling the set conditions of reverse rotation, such as rotation angle, rotation time, or rotation speed. After reversing direction, the gravitational acceleration of the load, combined with the maximum acceleration of the drive motor, enables the inner cylinder to quickly reach the target rotation speed, increasing the probability of the load sticking to the cylinder wall. Before reversing to the set conditions, an unwinding operation is performed to actively intervene in the load distribution, significantly improving the accuracy of subsequent eccentricity detection.

[0041] A further solution is to confirm that the load is not slipping or rolling in the inner cylinder if the eccentricity characteristic meets the preset conditions. Then, under the current distributed rotation speed of the inner cylinder, the eccentricity value is continuously detected. If the eccentricity value meets the set dehydration conditions, the next dehydration step is executed.

[0042] A further solution is that the eccentricity feature includes the eccentricity difference between the maximum and minimum eccentricity values ​​within a set time period. When the eccentricity difference is greater than or equal to a preset eccentricity difference threshold, the preset condition is not met.

[0043] Alternatively, the eccentricity feature may include the rate of change of the eccentricity value within a set time period. If the rate of change of the eccentricity value is greater than or equal to a preset rate of change threshold, then the preset condition is not met.

[0044] This invention uses the eccentricity difference or rate of change as a quantitative indicator of eccentricity characteristics to establish a scientific judgment standard and reduce the possibility of misjudgment.

[0045] This invention controls the inner cylinder rotation speed during the eccentricity detection stage to ensure the load adheres to the cylinder wall while also distributing the load. The dehydration operation is performed when the eccentricity value meets the dehydration conditions, which improves the dehydration efficiency and reduces the risk of abnormal equipment vibration.

[0046] The present invention also provides a garment processing device, comprising:

[0047] The rotation speed acquisition module is configured to acquire the distributed rotation speed of the inner drum of the garment processing equipment and control the inner drum rotation speed to reach the distributed rotation speed, which is greater than the critical rotation speed at which the load adheres to the inner drum wall and rotates together with the inner drum.

[0048] The eccentricity feature acquisition module is configured to acquire the real-time eccentricity feature of the inner cylinder when the inner cylinder is controlled to rotate at a distributed speed.

[0049] The control module is configured to control the inner cylinder to rotate at a higher speed so that the eccentric feature meets the preset conditions when the acquired eccentric feature does not meet the preset conditions.

[0050] Furthermore, the inner drum of the garment processing equipment has no lifting ribs; the load rotates along with the inner drum through the protrusions and / or indentations on the inner wall of the inner drum.

[0051] The clothing processing equipment of the present invention can be a drum washing machine or a washer-dryer combo, with the central axis of the inner drum set horizontally or at an angle.

[0052] The inner cylinder of the garment processing device of the present invention adopts a cylinder structure without lifting ribs, and with the cylinder wall protrusion and / or concave design, it simplifies the mechanical assembly structure, reduces costs, reduces garment wear, and relatively increases the load capacity of the inner cylinder.

[0053] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0054] The garment processing equipment control method of the present invention uses the acquired eccentricity characteristics as a judgment condition to adaptively increase the inner drum speed, so that the load can adhere to the wall more quickly. This not only optimizes the load distribution, but also obtains accurate eccentricity detection, thereby executing the dehydration operation corresponding to the eccentricity value and improving the dehydration efficiency.

[0055] Laboratory tests have shown that, compared with the traditional fixed-speed detection method, the eccentric detection of the garment processing equipment of this invention can reduce the ineffective operating time by at least 20% under the same conditions, and at the same time reduce the vibration amplitude during the dehydration stage by more than 30%.

[0056] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0057] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0058] Figure 1This is a schematic diagram of one embodiment of the clothing processing device of the present invention;

[0059] Figure 2 This is a schematic diagram of the modular structure of the garment processing equipment of the present invention;

[0060] Figure 3 This is a flowchart of the main steps of the clothing processing equipment control method of the present invention;

[0061] Figure 4 This is a flowchart illustrating the main steps of controlling the inner drum speed increase in the garment processing device of the present invention.

[0062] Figure 5 This is a flowchart illustrating the main steps of the garment processing device of the present invention in switching the inner drum rotation mode;

[0063] In the diagram: 1. Housing; 10. Control panel; 11. Base; 12. Front panel; 13. Rear panel; 14. Top panel; 2. Outer cylinder; 3. Inner cylinder; 4. Drive motor; 5. Door; 6. Window gasket; 7. Water inlet hose; 8. Dispensing device; 91. Drain hose; 92. Drain pump; 93. Drain pipe; 101. Rotation speed acquisition module; 102. Eccentricity feature acquisition module; 103. Control module.

[0064] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0066] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0067] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The configuration of the device or the control method described below are only for illustrating embodiments of the present invention and are not intended to limit the scope of the invention, and the same reference numerals denote the same constituent elements throughout the specification.

[0069] The specific terminology used in this specification is for illustrative purposes only and is not intended to limit the exemplary embodiments. For example, expressions such as "same" and "identical" not only indicate a state of strict identicalness but also indicate a state of having tolerances or differences in the degree to which the same function is achieved.

[0070] Clothing handling equipment can be categorized into top-loading and front-loading types based on the method of loading the load (or fabric). In top-loading equipment, the loading inlet is located on the upper surface of the drum, while in front-loading equipment, the inlet is located on the front of the drum. Furthermore, top-loading equipment washes clothes by using a pulsator or inner drum at the bottom of the drum to tumble and rub the water together. Front-loading equipment, on the other hand, uses a drop method, where the inner drum rotates to lift the clothes to a height and then drops them for washing; the central axis of the inner drum can be horizontal or tilted.

[0071] Unlike top-loading systems, front-loading systems exhibit greater variation in eccentricity due to load eccentricity during inner drum rotation. Therefore, it is easier to control the inner drum's eccentricity at a predetermined speed before dehydration compared to top-loading systems. For example, at an inner drum speed of 42 RPM, the load can be lifted and then dropped according to the inner drum's rotation; at 52 RPM, the load can rotate along with the inner wall of the inner drum. These speeds are merely one example and are also related to factors such as the inner drum diameter and load volume. Here, RPM stands for Revolutions Per Minute, representing the number of times the inner drum rotates per minute.

[0072] In front-loading systems where eccentricity is easily measured due to variations in load motion, eccentricity during the dehydration process—where water is removed from the load via high-speed rotation—can be predicted in advance, thus determining whether significant eccentricity will occur. Furthermore, by predicting eccentricity during dehydration, appropriate dehydration methods can be applied. Consequently, dehydration entry time can be reduced, and low-vibration dehydration becomes possible.

[0073] Specifically, such as Figure 1 As shown, the clothing handling device of the present invention includes a housing 1; an outer cylinder 2 disposed inside the housing 1; an inner cylinder 3 disposed rotatably inside the outer cylinder 2 for accommodating a load including clothing; and a drive motor 4 for driving the inner cylinder 3 to rotate. A Hall sensor (not shown in the figure) for detecting the rotation speed and rotation angle of the drive motor is installed on one side of the drive motor 4.

[0074] Generally, the housing 1 may be configured to include: a base 11, which forms the bottom of the garment processing device; a front panel 12, which forms the front side of the garment processing device; a rear panel 13, which forms the rear side of the garment processing device; a top panel 14, which forms the upper part of the garment processing device; and left and right side panels (not shown in the figure), which form the left and right sides of the garment processing device.

[0075] The front panel 12 is provided with an inlet (not shown in the figure) for inserting clothes into the inner drum 3 or removing clothes from inside the inner drum to the outside of the box. The inlet is configured to be opened and closed via a door 5. The door 5 can be rotatably connected to the front panel 12.

[0076] The outer cylinder 2 has an opening facing forward and is connected to the inlet via a window gasket 6. The window gasket 6 not only prevents water stored in the outer cylinder 2 from leaking into the housing 1 through the outer cylinder opening, but also dampens vibrations transmitted from the outer cylinder 2 to the housing 1. The window gasket 6 is made of an elastomer (such as rubber) and connects the inlet and the outer cylinder opening. One end of the window gasket 6 is fixed to the inlet, and the other end is fixed to the outer cylinder opening.

[0077] The inner cylinder 3 has no lifting ribs, and the load rotates together with the inner cylinder through the protrusions and / or depressions on the inner wall of the inner cylinder.

[0078] To supply water from an external water source to the interior of the outer drum 2, a water inlet device is installed on the lower side of the top panel 14. The water inlet device consists of a water inlet hose 7 and a water inlet valve (not shown in the figure). A dispensing device 8 is connected to the water inlet flow path of the water inlet device. The dispensing device 8 is used to mix detergent with the water supplied to the interior of the outer drum 2 and supply them together into the interior of the outer drum 2.

[0079] In order to discharge the washing water used in washing and cleaning operations to the outside, a drainage device is installed on the lower side of the outer drum 2. The drainage device consists of a drain hose 91, a drain pump 92 and a drain pipe 93.

[0080] A control panel 10 may be provided on the upper part of the front panel 12. The control device can receive user input of desired operations via the control panel 10 to control the drive motor, the water inlet device, and the drain device. The control device is capable of performing the washing process of supplying water and washing the load, the rinsing process of rinsing the load, and the draining and spin-drying processes. Furthermore, the control device can control the rotation of the drive motor 4 to cause the inner drum 3 to rotate at a desired speed or interrupt its rotation.

[0081] like Figure 2 As shown, Figure 2 This is a main structural block diagram of the control device for the clothing processing equipment of the present invention. It includes:

[0082] The rotation speed acquisition module 101 is configured to acquire the distributed rotation speed of the inner drum of the clothing processing equipment and control the inner drum rotation speed to reach the distributed rotation speed, which is greater than the critical rotation speed at which the load adheres to the inner drum wall and rotates together with the inner drum.

[0083] The eccentricity feature acquisition module 102 is configured to acquire the real-time eccentricity feature of the inner cylinder when controlling the inner cylinder to maintain rotation at a distributed speed.

[0084] The control module 103 is configured to control the inner cylinder to rotate at a higher speed so that the eccentric feature meets the preset conditions when the acquired eccentric feature does not meet the preset conditions.

[0085] Figure 3 This is a flowchart illustrating the main steps of the garment handling equipment control method according to the present invention. Figure 3 As shown, the garment processing equipment control method of the present invention includes the following steps during the eccentricity detection stage when executing the dehydration process:

[0086] Step S1: Obtain the distributed rotation speed of the inner drum of the clothing processing equipment, wherein the distributed rotation speed is greater than the critical rotation speed. The critical rotation speed of the inner drum of the present invention causes the load to adhere to the inner drum wall and rotate together with the inner drum.

[0087] In some embodiments, the critical rotational speed of the inner drum of the clothes handling device includes: obtaining the critical angular velocity ω of the inner drum according to the formula Mω²R=Mg, where M is the mass of the inner drum, R is the radius of the inner drum, and g is the acceleration due to gravity; and obtaining the critical rotational speed n of the washing machine inner drum according to the critical angular velocity ω and the formula ω=2πn, where π is pi. For example, taking a washing machine as an example, if the diameter of the inner drum is 0.5 meters, then the radius R of the inner drum is 0.25 meters, and the acceleration due to gravity g can be taken as 9.8 m / s². 2The formula Mω²R=Mg, i.e., ω²R=g, substituting the inner drum radius R and gravitational acceleration g into the formula, yields a critical angular velocity of 6.26 radians / second, or 375.6 radians / minute. Substituting the value of the critical angular velocity ω into the formula ω=2πn, the critical rotational speed n of the inner drum is obtained as 59.8 RPM. The methods for obtaining the critical rotational speed of the washing machine inner drum, the inner drum diameter, and the value of gravitational acceleration described above are only illustrative examples. In practical applications, the appropriate values ​​can be selected based on actual needs. The distributed rotational speed preset in this invention is greater than the critical rotational speed; for example, the distributed rotational speed range is 80 RPM to 120 RPM.

[0088] Step S2: Control the inner cylinder speed to reach the distributed speed and maintain it at the distributed speed.

[0089] In some embodiments, the inner drum is controlled to accelerate to the distributed rotational speed with a first acceleration a1. The value of the first acceleration ranges from 30 RPM / s to 500 RPM / s, preferably 50 RPM / s, meaning that the rotational speed of the inner drum increases by 50 RPM per second. Thus, when the garment processing equipment begins the spin-drying operation, the inner drum accelerates to the distributed rotational speed with an acceleration of 50 RPM / s. The first acceleration value described above is only for illustrative purposes; a larger first acceleration results in better load adhesion to the wall. In practical applications, the appropriate value can be selected based on actual needs.

[0090] Step S3: Obtain the eccentricity characteristics of the inner cylinder and compare them with preset conditions.

[0091] In some embodiments, the inner cylinder is controlled to rotate at a distributed speed greater than the critical speed, allowing the load in the inner cylinder to adhere more stably to the cylinder wall. While maintaining this distributed speed, within a set time t1, for example, within a set time of 5 seconds (this set time is merely illustrative), the eccentricity of the inner cylinder meets preset conditions. At this time, the eccentricity value of the inner cylinder is detected more accurately, and the accurate eccentricity value can better guide the next dehydration step. However, considering factors such as the material, volume, and water absorption of the load, especially for inner cylinders without lifting ribs, the load is less likely to adhere to the cylinder wall and rotate with the inner cylinder. Even when the inner cylinder is driven to rotate at a distributed speed greater than the critical speed, it cannot be guaranteed that the load will adhere to the cylinder wall. Therefore, it is necessary to determine whether the load is adhered to the inner cylinder wall to prepare for accurate detection of the eccentricity value.

[0092] Step S4: If the eccentricity feature does not meet the preset conditions, increase the inner cylinder speed to make the eccentricity feature meet the preset conditions.

[0093] If the eccentricity characteristic meets the preset conditions, it is confirmed that the load is not slipping or rolling in the inner cylinder. Under the current distributed speed of the inner cylinder, the eccentricity value is continuously detected. If the eccentricity value meets the set dehydration conditions, the next dehydration step is executed.

[0094] In some embodiments, when the acquired eccentricity characteristics do not meet preset conditions, it indicates that the load in the inner cylinder is not attached to the cylinder wall. Therefore, the control module controls the inner cylinder to increase its speed, thereby making the load in the inner cylinder attach to the wall. Directly increasing the speed based on the distributed rotational speed not only saves acceleration time and energy consumption, but also avoids the wear and tear on the drive motor caused by frequent starts, thus improving the working efficiency of the drive motor.

[0095] Based on the above steps S1 to S4, the present invention controls the inner cylinder to rotate at a distributed speed higher than the critical speed to obtain the eccentricity feature of the inner cylinder rotating at the distributed speed; when the obtained eccentricity feature does not meet the preset conditions, the inner cylinder is controlled to speed up and adjust so that the eccentricity feature meets the preset conditions.

[0096] This invention ensures that the probability of the load sticking to the cylinder wall is increased at the start of eccentricity detection by setting a distribution speed higher than the critical speed, thus eliminating the problem of excessively long eccentricity detection time caused by load slippage. While maintaining the distribution speed, it continuously detects eccentricity characteristics and dynamically judges the load distribution state, providing a reliable basis for subsequent control. By adaptively adjusting the speed, it effectively and quickly solves the problem of inaccurate eccentricity detection caused by load slippage.

[0097] Figure 4 This is a flowchart illustrating the main steps of controlling the inner drum speed increase in the garment processing equipment of the present invention. (See attached flowchart.) Figure 4 As shown, in some embodiments, when the obtained eccentricity feature does not meet the preset conditions, increasing the inner cylinder rotation speed includes the following steps:

[0098] S41. Obtain the new distribution speed, which is greater than the current distribution speed;

[0099] S42. Control the inner cylinder to accelerate to a new distribution speed and maintain it at the new distribution speed, then obtain the eccentricity feature of the inner cylinder again and compare it with the preset conditions.

[0100] S43. If the eccentric feature does not meet the preset conditions, then repeat steps S41 and S42 until the eccentric feature meets the preset conditions.

[0101] In some embodiments, controlling the inner cylinder speed adjustment to ensure the load in the inner cylinder adheres to the wall includes: controlling the rotational speed of the inner cylinder to increase from the current distributed rotational speed to a new distributed rotational speed. When the inner cylinder rotates at the new distributed rotational speed, the load in the inner cylinder can be better adhered to the cylinder wall, and the rotation of the inner cylinder is more stable.

[0102] The control method of this invention achieves speed gradient optimization through multi-stage acceleration cycles, avoiding excessive single acceleration that could lead to increased energy consumption or impact on the drive motor load. It also ensures that the load status is reassessed after each adjustment, thereby improving the accuracy and stability of the control.

[0103] In some embodiments, the speed acquisition module acquires the new distributed speed in step S41, including:

[0104] Calculated based on a preset function;

[0105] Alternatively, it can be obtained based on the preset relationship between the number of accelerations and the new distributed rotational speed;

[0106] In a preferred embodiment, a new distributed rotational speed is calculated based on a preset function, where the preset function is V. i =V (i-1) +ΔV, where ΔV is a preset value, i is the number of acceleration cycles, and V i V represents the new distributed rotational speed after the i-th acceleration. (i-1) The current distributed speed is given by V0, where V0 is the preset initial distributed speed during the first speed increase, with a value ranging from 80 RPM to 120 RPM. In other words, the current distributed speed is increased by ΔV to obtain the new distributed speed, with ΔV ranging from 3 RPM to 10 RPM.

[0107] This invention employs a preset function V i =V (i-1) +ΔV provides a simple and effective calculation method, ensuring that the acceleration process is controllable and predictable; while the scheme of the correspondence between the number of accelerations and the rotation speed can provide flexible adjustment space for the acceleration process, enhancing the adaptability of this invention to different models of clothing processing equipment or different programs.

[0108] To avoid wear and tear on the load from continuous speed increases, and to prevent the eccentricity detection phase from taking too long, the garment processing equipment limits the speed increase of the inner drum by setting a speed threshold. The steps following step S41, which obtains the new distributed speed, also include:

[0109] S411, Change the new distribution speed V i With the preset speed threshold V L Compare;

[0110] S412, If the new distribution speed V i Less than the preset speed threshold V L Then proceed to step S42; if the new distributed rotational speed V i Not less than the preset speed threshold V L If the inner cylinder stops rotating, the rotation mode of the inner cylinder is switched so that the load in the inner cylinder adheres to the inner cylinder wall and rotates together with the inner cylinder.

[0111] In some embodiments, the rotational speed threshold V L The value range is 180 RPM to 250 RPM, preferably 200 RPM. The aforementioned speed threshold V... L The values ​​provided are for illustrative purposes only; in practical applications, the appropriate values ​​can be selected based on actual needs. Speed ​​threshold V L It is mainly related to the initial distribution speed V0, the magnitude of the increase in speed ΔV each time, and the duration of eccentricity detection.

[0112] As an alternative to the above scheme, the number of times steps S41 and S42 are executed repeatedly or the total cycle time can be calculated. When the number of cycles is greater than the preset number or the total cycle time is greater than the preset time, the inner cylinder is controlled to stop rotating and the inner cylinder rotation mode is switched so that the load in the inner cylinder adheres to the inner cylinder wall and rotates with the inner cylinder.

[0113] Figure 5 This is a flowchart illustrating the steps of switching the inner drum rotation mode in the garment processing device of the present invention. Figure 5 As shown, in some embodiments, step S412, switching the inner cylinder rotation mode, includes the following steps:

[0114] S4121, Control the inner cylinder to rotate in the opposite direction until the set conditions are met;

[0115] In some embodiments, the inner cylinder is controlled to rotate in the opposite direction by a set angle with a second acceleration a2 smaller than the first acceleration a1. This angle is controlled to be greater than 30° and less than 90°. Alternatively, the set time for the reverse rotation is 300ms to 600ms, or the inner cylinder's reverse rotation is accelerated to a set speed of 10RPM to 20RPM. When the above conditions are met, the load rotates in the opposite direction with the inner cylinder and does not detach from the inner cylinder wall. In controlling the inner cylinder to rotate in the opposite direction, "opposite direction" refers to the opposite direction relative to the direction of rotation of the inner cylinder at the distributed speed.

[0116] In a preferred embodiment, the inner cylinder is controlled to rotate in the opposite direction by a set angle, which drives the load in the opposite direction to a certain height, stops and holds for a set time, generally not exceeding 1 second.

[0117] S4122: Control the inner cylinder to reverse direction and accelerate rotation again, rotating to the preset target speed, which is greater than the distributed speed;

[0118] In some embodiments, when the inner cylinder is controlled to rotate in a different direction again, the rotation direction is the same as the direction in which the inner cylinder rotates at the distributed speed, and the inner cylinder is controlled to accelerate to a target speed V0 greater than the initial distributed speed V0 with a third acceleration a3 greater than the first acceleration a1. mRotation, the third acceleration a3 is preferably the maximum acceleration allowed by the drive motor of the garment processing equipment. After reversing direction, the gravitational acceleration of the load, combined with the maximum acceleration of the drive motor, enables the inner drum to quickly reach the target speed, increasing the probability of the load sticking to the drum wall.

[0119] S4123. Control the inner cylinder to reduce its speed to the distributed rotation speed, and return to step S2;

[0120] Alternatively, an alternative to the above solution is to replace steps S4122 and S4123 with: controlling the inner cylinder to reverse direction and accelerate rotation again, returning to step S2; that is, the target rotational speed V m Let V0 be the initial distributed rotational speed.

[0121] This invention controls the rotation of the inner cylinder by reversing rotation and using different accelerations, which fundamentally increases the probability of the load sticking to the cylinder wall and improves the efficiency of speed adjustment while reducing load wear.

[0122] In some preferred embodiments, step S412, switching the inner cylinder rotation mode, includes: first controlling the inner cylinder to perform a load unwinding operation, and then executing step S4121 after the load unwinding operation is completed.

[0123] The unwinding operation of the inner drum under load includes: controlling the inner drum's rotation speed to first reduce to zero and then reversing it at the unwinding speed for a preset duration. For example, the unwinding speed can be 40 RPM to 60 RPM, and the preset unwinding time should not exceed 5 minutes. Generally, unwinding of clothing can be achieved within 1 minute. That is, if the eccentricity characteristic still does not meet the preset conditions after multiple adjustments to the inner drum's rotation speed, the inner drum's rotation speed is first reduced to zero and then reversed at 40 RPM for 15 to 20 seconds to complete the unwinding of the load. The values ​​of the unwinding speed and the preset unwinding time described above are only illustrative examples and can be selected according to actual needs in practical applications. Since the inner drum rotates in the opposite direction to the rotation direction of the distributed rotation speed during the unwinding operation, after the unwinding operation, when executing step S4121, the direction of rotation of the inner drum should be consistent with the rotation direction during the unwinding operation.

[0124] After the above-mentioned large cycle of switching the inner cylinder rotation mode a set number of times or after a set running time such as 15min to 30min, if the eccentricity characteristic still does not meet the preset conditions, the inner cylinder will be controlled to stop rotating and the user will be notified.

[0125] The eccentricity feature in the above embodiments of the present invention includes the eccentricity difference between the maximum eccentricity value and the minimum eccentricity value within a set time period. When the eccentricity difference is greater than or equal to a preset eccentricity difference threshold, the preset condition is not met.

[0126] Alternatively, the eccentricity feature may include the rate of change of the eccentricity value within a set time period. If the rate of change of the eccentricity value is greater than or equal to a preset rate of change threshold, then the preset condition is not met.

[0127] By using the aforementioned eccentricity difference or rate of change as a quantitative indicator of eccentricity characteristics, a scientific judgment standard can be established to reduce the possibility of misjudgment.

[0128] This invention controls the inner cylinder rotation speed during the eccentricity detection stage to ensure the load adheres to the cylinder wall while also distributing the load. The dehydration operation is performed when the eccentricity value meets the dehydration conditions, which improves the dehydration efficiency and reduces the risk of abnormal equipment vibration.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A control method for a garment processing device, characterized in that, The eccentricity detection stage includes the following steps: S1. Obtain the distributed rotation speed of the inner drum of the garment processing equipment. The distributed rotation speed is greater than the critical rotation speed at which the load adheres to the inner drum wall and rotates together with the inner drum. S2. Control the inner cylinder speed to reach the distributed speed and maintain it at the distributed speed; S3. Obtain the eccentricity characteristics of the inner cylinder and compare them with preset conditions; S4. If the eccentricity characteristic does not meet the preset conditions, increase the inner cylinder speed so that the eccentricity characteristic meets the preset conditions.

2. The control method for a garment processing device according to claim 1, characterized in that, When the eccentricity characteristic in step S4 does not meet the preset conditions, increasing the inner cylinder rotation speed includes: S41. Obtain the new distribution rotation speed; S42. Control the inner cylinder to accelerate to a new distribution speed and maintain it at the new distribution speed, then obtain the eccentricity feature of the inner cylinder again and compare it with the preset conditions. S43. If the eccentric feature does not meet the preset conditions, then repeat steps S41 and S42 until the eccentric feature meets the preset conditions.

3. The control method for a garment processing device according to claim 2, characterized in that, Step S41, obtaining the new distributed rotational speed, includes: Calculated based on a preset function; Alternatively, it can be obtained based on the preset relationship between the number of accelerations and the new distributed rotational speed; Preferably, the new distributed rotational speed is calculated based on a preset function, where the preset function is V. i =V (i-1) +ΔV, where ΔV is a preset value, i is the number of acceleration cycles, and V i V represents the new distributed rotational speed after the i-th acceleration. (i-1) This represents the current distributed rotational speed.

4. A control method for a garment processing device according to claim 2 or 3, characterized in that, After obtaining the new distribution speed in step S41, the following steps are included: S411. Compare the new distributed rotational speed with the preset rotational speed threshold; S412. If the new distributed rotation speed is less than the preset rotation speed threshold, then execute step S42. If the new distributed rotation speed is not less than the preset rotation speed threshold, then control the inner cylinder to stop rotating and switch the inner cylinder rotation mode so that the load in the inner cylinder adheres to the inner cylinder wall and rotates together with the inner cylinder.

5. The control method for a garment processing device according to claim 4, characterized in that, Step S412, switching the inner cylinder rotation mode so that the load in the inner cylinder rotates along with the inner cylinder wall, includes: S4121, Control the inner cylinder to rotate in the opposite direction until the set conditions are met; S4122: Control the inner cylinder to reverse direction and accelerate rotation again, rotating to the preset target speed, which is greater than the distributed speed; S4123. Control the inner cylinder to reduce its speed to the distributed rotation speed, and return to step S2; Alternatively, steps S4122 and S4123 can be replaced with: controlling the inner cylinder to reverse direction and accelerate rotation again, returning to step S2; Preferably, the acceleration of controlling the inner cylinder to rotate in the opposite direction in step S4121 is less than the acceleration of the inner cylinder when the rotational speed reaches the distributed rotational speed in step S2. Preferably, the acceleration of the inner cylinder in step S4122 when it reverses direction and accelerates rotation is greater than the acceleration of the inner cylinder when its rotational speed reaches the distributed rotational speed in step S2. Preferably, in step S4122, the acceleration of the inner drum to change direction and accelerate rotation again is the maximum acceleration allowed by the drive motor of the garment processing equipment.

6. The control method for a garment processing device according to claim 5, characterized in that, The settings in step S4121 include: The angle at which the inner cylinder rotates in the opposite direction is set, or the time at which the inner cylinder rotates in the opposite direction is set, or the speed at which the inner cylinder rotates in the opposite direction is accelerated to a set speed.

7. A control method for a garment processing device according to any one of claims 4-6, characterized in that, Step S412, switching the inner cylinder rotation mode, includes: first controlling the inner cylinder to perform a load unwinding operation.

8. A control method for a garment processing device according to any one of claims 1-7, characterized in that, If the eccentricity characteristic meets the preset conditions, it is confirmed that the load is not slipping or rolling in the inner cylinder. Under the current distributed rotation speed of the inner cylinder, the eccentricity value is continuously detected. If the eccentricity value meets the set dehydration conditions, the next dehydration step is executed.

9. A control method for a garment processing device according to any one of claims 1-8, characterized in that, The eccentricity feature includes the eccentricity difference between the maximum and minimum eccentricity values ​​within a set time period. When the eccentricity difference is greater than or equal to a preset eccentricity difference threshold, the preset condition is not met. Alternatively, the eccentricity feature may include the rate of change of the eccentricity value within a set time period. If the rate of change of the eccentricity value is greater than or equal to a preset rate of change threshold, then the preset condition is not met.

10. A garment processing device, characterized in that, include: The rotation speed acquisition module is configured to acquire the distributed rotation speed of the inner drum of the garment processing equipment and control the inner drum rotation speed to reach the distributed rotation speed, which is greater than the critical rotation speed at which the load adheres to the inner drum wall and rotates together with the inner drum. The eccentricity feature acquisition module is configured to acquire the real-time eccentricity feature of the inner cylinder when the inner cylinder is controlled to rotate at a distributed speed. The control module is configured to control the inner cylinder to rotate at a higher speed so that the eccentric feature meets the preset conditions when the acquired eccentric feature does not meet the preset conditions. Preferably, the inner cylinder has no lifting ribs, and the load rotates together with the inner cylinder through the protrusions and / or depressions on the inner wall of the inner cylinder.

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