CN1683631A - Control method for dewatering of rolling drum washing machine - Google Patents

Control method for dewatering of rolling drum washing machine Download PDF

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Publication number
CN1683631A
CN1683631A CN 200410018941 CN200410018941A CN1683631A CN 1683631 A CN1683631 A CN 1683631A CN 200410018941 CN200410018941 CN 200410018941 CN 200410018941 A CN200410018941 A CN 200410018941A CN 1683631 A CN1683631 A CN 1683631A
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China
Prior art keywords
washings
washing machine
cylinder
washing
mentioned
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Pending
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CN 200410018941
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Chinese (zh)
Inventor
李八镇
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CN 200410018941 priority Critical patent/CN1683631A/en
Publication of CN1683631A publication Critical patent/CN1683631A/en
Pending legal-status Critical Current

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Abstract

The present invention belongs to the field of fabric washing technology, and relates to the dewatering control method of rolling drum washing machine. The present invention solves the technological problem of avoiding twisting of washed matter in finishing the washing and caused dynamic unbalance, vibration and knocking. The technological scheme of the present invention is to untying the washed matter before detecting the washing matter amount and dewatering to decrease the vibration during detecting washed matter amount. The method can reduce vibration, noise and shift of the washing machine and detect the washing matter amount correctly.

Description

The dehydration controlling method of tumbling-box washing machine
Technical field
The invention belongs to the textile washing equipment technical field, relate to the invention of the dehydration controlling method of tumbling-box washing machine.Particularly about, prevent that casing that the entanglement by washings causes from beaing the invention of dehydration controlling method of the tumbling-box washing machine of phenomenon.
Background technology
In general, tumbling-box washing machine is under washing agent and washings and washings are invested in situation in the cylinder, finish laundry processes by the cylinder of motor-driven rotation and the frictional force of washings, reach unlikely mutual entanglement between the damage that almost do not have washings and washings, have simultaneously and beat the clean result of rubbing.
Structure below with reference to the existing direct head roll formula washing machine of Fig. 1 schematic illustration.
The profilograph of the direct head roll formula washing machine that Fig. 1 prompting has.Wherein, casing (5) inboard is provided with washing drum (3), and the inboard of above-mentioned washing drum (3) is provided with cylinder (9).
In addition, be provided with the pivot (13) that is used for the driving force of motor (6) is communicated to cylinder (9) in the above-mentioned cylinder (9).
Simultaneously, the front and back of above-mentioned pivot (13) respectively are provided with bearing (12), and the central authorities of the rear wall parts of above-mentioned washing drum (3) then are provided with the bearing support that is used to support above-mentioned bearing (12).
Also have, the rear wall parts of above-mentioned washing drum (3) is concluded the stator (7) that constitutes direct drive motors (6), then is combined with the rotor (8) that together constitutes motor (6) with said stator (7) on the above-mentioned pivot (13).
Thus, above-mentioned cylinder (9) directly rotates in rotor (8).
In addition, the place ahead of said machine casing (5) is provided with hatch door (1), then is provided with pad (2) between hatch door (1) and the washing drum (3).
And, be provided with the suspention spring (4) that is used to support washing drum (3) between the outer peripheral face top of the upper inner of said machine casing (5) and washing drum (3), then be provided with the friction shock absorber (10) of washing drum (3) vibration that takes place when being used to reduce to dewater between the bottom surfaces inboard of said machine casing (5) and the outer peripheral face bottom of washing drum (3).
In addition, a side of motor (6) is attached with the electromechanical transducer (11) that is used for detection rotor (8) rotation number.
As above in the existing tumbling-box washing machine of structure, after washings was rendered to cylinder (9), when selecting required laundry pattern and driving washing machine, washings supplied in the cylinder (9), began rotation and carried out washing process with back roll (9).
After finishing washing process, washings are to the outside discharge and carry out cleaning process, then motor (6) beginning rotation at a high speed, and the washings that attaches on the inwall of centrifugal force with cylinder (9) by generation dewaters.
Below with reference to Fig. 2 and Fig. 3 the as above dehydration of the existing tumbling-box washing machine of structure is described.
Fig. 2 is the flow chart of the dehydration of prior art intermediate roll formula washing machine.Fig. 3 is the chart of the dehydration RPM of prior art intermediate roll formula washing machine.(RPM is a revolutions per minute)
After being over, cleaning process then carries out dehydration.
Dehydration is divided into cylinder (9) with the initial stage dehydration of rotor (8) low speed rotation and the main dehydration of rotation mainly to dewater at a high speed.
During above-mentioned initial stage dehydration, consider unbalance problem and carry out the washings amount and detect (S201), to satisfy the unbalance condition that is suitable for drive system.
The method that above-mentioned washings amount detects was judged by above-mentioned cylinder (9) arrival certain speed (about 70rpm in the example of Fig. 3) (RPM is a revolutions per minute) the required time.
At this moment, also increase immediately the time of advent (t) of above-mentioned certain speed when increasing owing to the washings amount, so can judge the washings amount by above-mentioned cylinder (9) the arrival required time of certain speed.
Then, the rotation number of cylinder (9) is brought up to about 108rpm and is detected offset (S202).
Bring up to 100rpm when above when the rotation number of cylinder (9), washings is because action of centrifugal force attaches on the madial wall of cylinder (9), and motor (6) sensor (11) is the speed of detection rotor (8) in this state.
At this moment, if the dispersion of washings is better in the said process,, be added with the load of certain balance during swing roller (9) on the motor (6) mutually even washings evenly spreads under the situation of cylinder (9) inwall; If the dispersion of washings is relatively poor in the above-mentioned equilibrium process, make washings not evenly spread to cylinder (9) inwall and under the situation of lopside and entanglement, the load of addition is bigger when lifting tendency or entanglement part with the winding drum hoist structure, and then the load of addition is less when let-down tendency or entanglement part on the contrary.
Therefore, the magnitude of load that is added on the motor (6) when washings is eccentric is indefinite, and the rotation that causes cylinder (9) is unstable and rock.In the control part of motor rotation, when the rotary speed of motor changes in deciding scope, be judged as offset in tolerance zone; When the rotary speed of motor changes beyond deciding scope, then be judged as offset greater than tolerance zone.
Here, decide rotation number (example: about 108rpm) when being judged as above-mentioned, when the offset of the washings that detects satisfied tolerance zone, dehydration of end initial stage and the interim rotation number that promotes rotor (8) were led dehydration (S203) (S204) rising under the state of maximal rate.
But there are the following problems for the dehydration controlling method of existing tumbling-box washing machine.
The big capacity of tumbling-box washing machine, its centrifugal force is also big more, the back washings mat so cleaning process ends.
When carrying out the dehydration process of next process in this state,, the rotary speed of cylinder (9) is brought up to 70rpm for detecting the washings amount at the dehydration process initial stage.
But, when washings tangles eccentric balance phenomenon can take place, cause washing drum (3) to produce bigger vibration, the washing drum of above-mentioned vibration (3) can beat casing (5), thereby noise and mobile phenomenon take place.
And the washings amount then can't detect correct washings amount when detecting.
Summary of the invention
Address the above problem for making, the object of the present invention is to provide a kind of before the washings amount detects, the washings that evenly disperses mat earlier, make that can make correct washings amount when the washings amount detects detects, and improve the casing (5) that the vibration by washing drum (3) causes and beat phenomenon, thereby reduce noise and move the dehydration controlling method of the tumbling-box washing machine that takes place.
In the dehydration controlling method of tumbling-box washing machine of the present invention, before detecting, the washings amount evenly disperse the washings of washings to untie stirring earlier.
Above-mentioned washings is untied in the agitation phases, and it is characterized in that has the cylinder positive and negative alternate rotation of washings more than 1 time with input.
And RPM (revolutions per minute) value when RPM (revolutions per minute) value when above-mentioned washings is untied stirring is lower than the detection of washings amount slightly.
When will describing example in detail by appended drawings, other purpose of the present invention, feature and advantage further introduce.
Advantage and good effect: as mentioned above, before the washings amount detects in the present invention, carry out washings earlier and untie and stir the washings be used to disperse mat, carry out the washings amount after washings in the cylinder is evenly disperseed to detect, thus the vibration of washing drum when reducing the washings amount and detecting.
Like this, the casing that the vibration of washing drum causes knocks phenomenon also to be reduced immediately, and the generation that reduces its noise thus and move.
And then when detecting, the washings amount can detect correct washings amount.
Content by above-mentioned explanation as can be known, relevant dealer can carry out multiple different distortion and correction in the scope that does not exceed the technology of the present invention thought.
And technology category of the present invention is not confined to the content in the example, but by right request scope dictates.
Description of drawings
Fig. 1 is the sectional side elevation of existing direct head roll formula washing machine.
Fig. 2 is the flow chart of the dehydration of prior art intermediate roll formula washing machine.
Fig. 3 is the chart of the dehydration RPM of prior art intermediate roll formula washing machine.
Fig. 4 is the flow chart of the dehydration of intermediate roll formula washing machine of the present invention.
Fig. 5 is the chart of the dehydration RPM of intermediate roll formula washing machine of the present invention.
Among each figure:
1: hatch door, 2: pad,
3: washing drum, 4: the suspention spring,
5: casing, 6: motor,
7: stator, 8: rotor,
9: cylinder, 10: friction shock absorber,
11: electromechanical transducer, 12: bearing,
13: pivot.
The specific embodiment
Below with reference to adding drawing explanation example of the present invention.
Fig. 4 is the flow chart of the dehydration of intermediate roll formula washing machine of the present invention.Fig. 5 is the chart of the dehydration RPM (revolutions per minute) of intermediate roll formula washing machine of the present invention.
In the washing process of tumbling-box washing machine, at first washings is rendered in the cylinder (9), selected required washing mode also drives washing machine, and washings will supply in the cylinder (9), and head roll (9) the beginning both forward and reverse directions rotation by motor (6) is also carried out washing process.
In addition, washings are when discharge the outside after washing process finishes, and washings are re-supplied in the cylinder (9), and then cylinder (9) begins rotation and carries out cleaning process.After being over, cleaning process then carries out cylinder (9) the dehydration process of the washings of rotation at a high speed.
After above-mentioned cleaning process ended, because the characteristic of tumbling-box washing machine, the washings in the cylinder (9) was mat, and the entanglement phenomenon of this washings under the situation of jumbo tumbling-box washing machine with even more serious.
In this state, when directly the rotary speed of cylinder (9) being brought up to the 70rpm (rpm is a revolutions per) of washings amount detection if detect the washings amount, because the washings of mat produces eccentric phenomena, to make washing drum (3) serious vibration, the washing drum of above-mentioned vibration (3) can beat casing (5) and noise and mobile takes place.
Therefore, before the washings amount detects among the present invention,, the washings that evenly disperses mat unties stirring for carrying out washings earlier.
That is, shown in Fig. 4,5, cylinder (9) carries out washings with the rotary speed positive and negative alternate rotation of about 46rpm and unties stirring (S401) more than 1 time.
In the cylinder (9) that rotates with the rotary speed of 46rpm, compared with the centrifugal force that rotation produces, gravity will mainly act on the washings, after washings upwards lifts by the rotation of cylinder (9), owing to its gravity falls and evenly dispersion.
Then, consider unbalance problem and carry out the washings amount and detect (S402), to satisfy the unbalance condition that is suitable for drive system.
The method that above-mentioned washings amount detects was judged by above-mentioned cylinder (9) arrival certain speed (about 70rpm in the example of Fig. 5) the required time.
At this moment,, the washings amount also increases immediately, so can judge the washings amount by above-mentioned cylinder (9) the arrival required time of certain speed because increasing the time of advent (t) of above-mentioned certain speed.
Then, the rotation number of cylinder (9) is brought up to about 108rpm and is detected offset (S403).
Bring up to 100rpm when above when the rotation number of cylinder (9), washings in this state, is attached to the speed of electromechanical transducer (11) detection rotor (8) on the motor (6) because action of centrifugal force is attached on the madial wall of cylinder (9).
At this moment,, washings is evenly spread under the situation of cylinder (9) inwall, be added with certain dynamically balanced load during swing roller (9) on the motor (6) mutually if the dispersion of washings is better in the above-mentioned equilibrium process; If the dispersion of washings is relatively poor in the above-mentioned equilibrium process, make washings not evenly spread to cylinder (9) inwall and under the situation of lopside and entanglement, the load of addition is bigger when lifting tendency or entanglement part with the winding drum hoist structure, and then the load of addition is less when let-down tendency or entanglement part on the contrary.
Therefore, the magnitude of load that is added on the motor (6) when washings is eccentric is indefinite, and the rotation that causes cylinder (9) is unstable and rock.In the control part of control motor rotation, when the rotary speed of motor changes in deciding scope, be judged as offset in tolerance zone; When the rotary speed of motor changes beyond deciding scope, then be judged as offset greater than tolerance zone.
Here, decide rotation number (example: about 108rpm) under (rpm is a revolutions per) when being judged as above-mentioned, when the offset of the washings that detects satisfies tolerance zone, end initial stage dehydration and the interim rotation number that promotes rotor (8) are led dehydration (S404) (S405) rising under the state of maximal rate.
Finished the dehydration process of the tumbling-box washing machine among the present invention by said process.

Claims (3)

1, a kind of dehydration controlling method of tumbling-box washing machine, include the detection of washings amount, eccentricity detecting, raising revolution and arrive maximum dewatering speed, main water smoking, it is characterized in that: before the washings amount detects, still be provided with and evenly disperse the washings of washings to untie agitation phases earlier.
2, the dehydration controlling method of tumbling-box washing machine according to claim 1 is characterized in that: it is that input is had the cylinder positive and negative alternate rotation of washings more than 1 time that above-mentioned washings is untied agitation phases.
3, the dehydration controlling method of tumbling-box washing machine according to claim 1 is characterized in that: the revolutions per minute value when the revolutions per minute value when above-mentioned washings is untied stirring is lower than the detection of washings amount slightly.
CN 200410018941 2004-04-12 2004-04-12 Control method for dewatering of rolling drum washing machine Pending CN1683631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410018941 CN1683631A (en) 2004-04-12 2004-04-12 Control method for dewatering of rolling drum washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410018941 CN1683631A (en) 2004-04-12 2004-04-12 Control method for dewatering of rolling drum washing machine

Publications (1)

Publication Number Publication Date
CN1683631A true CN1683631A (en) 2005-10-19

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101812790A (en) * 2009-08-11 2010-08-25 南京乐金熊猫电器有限公司 A control method for washing device
CN101586299B (en) * 2008-05-23 2011-11-02 Lg电子株式会社 Washing machine and method of controlling a washing machine
CN104246050A (en) * 2012-04-23 2014-12-24 松下知识产权经营株式会社 Drum type washing machine
CN107558098A (en) * 2017-08-17 2018-01-09 无锡小天鹅通用电器有限公司 The dewatering of device for clothing processing
CN114341419A (en) * 2019-08-29 2022-04-12 Bsh家用电器有限公司 Laundry care appliance with control
CN114829692A (en) * 2019-12-20 2022-07-29 Lg电子株式会社 Control method of clothes treatment device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101586299B (en) * 2008-05-23 2011-11-02 Lg电子株式会社 Washing machine and method of controlling a washing machine
CN101812790A (en) * 2009-08-11 2010-08-25 南京乐金熊猫电器有限公司 A control method for washing device
CN104246050A (en) * 2012-04-23 2014-12-24 松下知识产权经营株式会社 Drum type washing machine
CN104246050B (en) * 2012-04-23 2016-09-21 松下知识产权经营株式会社 Tumbling-box washing machine
CN107558098A (en) * 2017-08-17 2018-01-09 无锡小天鹅通用电器有限公司 The dewatering of device for clothing processing
CN107558098B (en) * 2017-08-17 2020-11-10 无锡小天鹅通用电器有限公司 Dewatering method of clothes processing device
CN114341419A (en) * 2019-08-29 2022-04-12 Bsh家用电器有限公司 Laundry care appliance with control
CN114341419B (en) * 2019-08-29 2024-02-13 Bsh家用电器有限公司 Washware care implement with controller
CN114829692A (en) * 2019-12-20 2022-07-29 Lg电子株式会社 Control method of clothes treatment device
CN114829692B (en) * 2019-12-20 2023-11-03 Lg电子株式会社 Control method of clothes treatment device

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