CN112726132A - Scale inhibition outer barrel of clothes treatment device, preparation method and washing machine - Google Patents
Scale inhibition outer barrel of clothes treatment device, preparation method and washing machine Download PDFInfo
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- CN112726132A CN112726132A CN202011548502.XA CN202011548502A CN112726132A CN 112726132 A CN112726132 A CN 112726132A CN 202011548502 A CN202011548502 A CN 202011548502A CN 112726132 A CN112726132 A CN 112726132A
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- outer cylinder
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
- D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/007—Arrangements of water softeners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Engineering & Computer Science (AREA)
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a scale inhibiting outer cylinder of a clothes treatment device, which comprises an outer cylinder body arranged in the clothes treatment device; the outer cylinder body is mixed with a scale inhibitor in the injection molding process, so that the inner wall containing scale inhibitor molecules is formed on the outer cylinder body; the outer cylinder body and the roller for containing clothes form a cavity for containing water; water enters the cavity and contacts the inner wall of the outer barrel body, and scale inhibitor molecules on the surface of the inner wall react with scale ions in water flow to reduce the content of the scale ions in the water flow in the cavity. The invention also provides a preparation method and a washing machine. In the injection molding process of the outer cylinder body, the scale inhibitor is mixed in the outer cylinder body, water entering the containing cavity contacts scale inhibitor molecules on the inner wall of the outer cylinder body, the content of scale formation ions in the water is reduced, the water quality is softened, the generation of scale in the flowing process of water flow in the clothes treatment device is reduced, and the service life of the clothes treatment device is prolonged.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a scale inhibiting outer cylinder of a clothes treatment device, a preparation method and a washing machine.
Background
The clothes treatment devices on the market at present have the functions of steam drying, steam sterilization, steam wrinkle removal and the like besides the conventional washing function. Many functions need to heat water, and the ion of easy scale deposit such as calcium ion and magnesium ion in the heating process aquatic can deposit gradually, forms the incrustation scale that uses calcium carbonate and magnesium hydroxide as the essential element, and the incrustation scale easily gathers on clothing processing apparatus section of thick bamboo wall or other spare part surfaces, pollutes clothing processing apparatus section of thick bamboo wall or other spare part surfaces, increases clean degree of difficulty and cost, reduces clothing processing apparatus life.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the scale inhibiting outer cylinder of the clothes treatment device, the scale inhibiting agent is mixed in the outer cylinder body in the injection molding process, and water entering a cavity between the outer cylinder body and the roller contacts with the scale inhibiting agent molecules on the outer cylinder body and reacts to realize water softening.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The invention provides a scale inhibiting outer cylinder of a clothes treatment device, which comprises an outer cylinder body arranged in the clothes treatment device, wherein a scale inhibitor is mixed in the outer cylinder body in the injection molding process, so that the inner wall containing scale inhibitor molecules is formed on the outer cylinder body;
the outer cylinder body and the roller for containing clothes form a cavity for containing water;
water enters the cavity and contacts the inner wall of the outer barrel body, and scale inhibitor molecules on the surface of the inner wall react with scale ions in water flow to reduce the content of the scale ions in the water flow in the cavity.
Preferably, the outer barrel body is provided with a water inlet; the scale inhibitor is mixed in the water inlet in the injection molding process.
Preferably, the outer barrel body is provided with a water outlet; and the water outlet is mixed with a scale inhibitor in the injection molding process.
Preferably, the outer cylinder body comprises:
a first injection molding part made of a mixture of plastic particles and a scale inhibitor for forming an inner wall structure of the outer cylinder body containing scale inhibitor molecules;
the second injection molding part is made of plastic particles and is used for forming a cylinder structure of the outer cylinder body so as to provide supporting force;
the first injection molding part covers the inner surface of the cylinder structure of the second injection molding part.
Preferably, the first injection molding part is partially covered on the inner surface of the cylinder structure of the second injection molding part along the water flow direction.
Preferably, the first injection molding part is arranged at the bottom of the cylinder structure of the second injection molding part.
Preferably, the number of the first injection molding parts is at least two, and the first injection molding parts are respectively distributed on the inner surface of the cylinder structure of the second injection molding part along the water flow direction.
Preferably, the second shot thickness is greater than the first shot thickness.
Preferably, a hollow structure is arranged on one side, close to the cavity, of the outer cylinder body.
Preferably, the outer contour of the inner wall of the outer cylinder body containing scale inhibitor molecules is a wavy surface structure.
Preferably, the scale inhibitor is a slow release scale inhibitor.
The second purpose of the invention is to provide a preparation method of the scale inhibiting outer barrel, which comprises the following steps:
s1, placing the plastic particles and the scale inhibitor into an injection molding machine as injection molding raw materials;
s2, starting injection molding by an injection molding machine, and injecting the fully molten and mixed plastic and the scale inhibitor into a mold to obtain the outer cylinder body.
A third object of the present invention is to provide a laundry machine including a scale inhibiting tub of a laundry treating apparatus as described above.
Compared with the prior art, the invention has the beneficial effects that:
the scale inhibitor is mixed in the outer cylinder body in the injection molding process to form the inner wall of the outer cylinder body containing scale inhibitor molecules, the cavity is used for containing water introduced between the outer cylinder body and the roller, the scale inhibitor molecules on the inner wall of the outer cylinder body contact water flow and react with scale forming ions in the water flow, so that the content of the scale forming ions in the water flow in the cavity is reduced, water quality purification is realized, the generation of scale in the flowing process of the water flow in the clothes treatment device is reduced, the clothes treatment device is prevented from being polluted by the scale, and the service life of the clothes treatment device is prolonged.
In a preferred scheme, the outer cylinder body comprises a second injection molding part and a first injection molding part, so that the use of a scale inhibitor is reduced, and the cost is saved.
The foregoing description is only an overview of the technical solutions of the present invention, and some embodiments are described in detail below in order to make the technical solutions of the present invention more clearly understood and to implement the technical solutions according to the content of the description. Specific embodiments of the present invention are given in detail by the following examples.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic perspective view of the outer barrel body of the present invention;
FIG. 2 is a flow chart illustrating a method for manufacturing the outer tub body according to an embodiment of the present invention;
fig. 3 is a flow chart of a method for manufacturing the outer cylinder body in another embodiment of the invention.
In the figure:
100. an outer cylinder body; 10. a water inlet; 20. and (7) a water outlet.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example 1
The invention provides a scale-inhibiting outer cylinder of a clothes treatment device, as shown in figure 1, comprising an outer cylinder body 100 arranged in the clothes treatment device; the tub body 100 is cylindrical, a hollow area of the tub body 100 is used for accommodating a drum for containing clothes, and the drum is rotatably disposed in the hollow area of the tub body 100; a cavity for containing water is formed between the inner wall of the outer cylinder body 100 and the outer wall of the roller; when water needs to be supplied into the drum, water supplied to the clothes treatment device from the outside firstly enters a cavity between the outer drum body 100 and the drum through the water inlet 10 of the outer drum body 100 and then enters the drum so as to treat clothes in the drum; when the washing water after the clothes in the drum are treated needs to be discharged, the washing water in the drum is firstly discharged into a cavity between the outer drum body 100 and the drum and then discharged from the water outlet 20 on the outer drum body 100; wherein, the outer cylinder body 100 is injected with the scale inhibitor, so that the inner wall containing the scale inhibitor molecules is formed on the outer cylinder body 100;
water enters the cavity between the outer barrel body 100 and the roller and contacts the inner wall of the outer barrel body 100, and scale inhibitor molecules on the surface of the inner wall of the outer barrel body 100 react with scale ions in water flow to reduce the content of the scale ions in the water flow in the cavity. The scaling ions refer to metal ions which are easy to form scale after being heated, and include but are not limited to calcium ions and magnesium ions which are easy to scale. The principle of scale inhibitor for inhibiting water scale includes chelation, adsorption and dispersion. When the scale inhibitor is used for chelating, the scale inhibitor is complexed with metal ions which are easy to scale, such as calcium ions, magnesium ions and the like in water to form stable water-soluble chelate, reactants are dissolved in the water, the concentration of the free metal ions which are easy to scale, such as calcium ions, magnesium ions and the like in the water is reduced, and the amount of precipitated calcium carbonate, magnesium carbonate and other precipitates is further reduced; when the scale inhibitor plays a role in adsorption and dispersion, the scale inhibitor is an anionic organic compound, adsorbs ions which are easy to scale, such as calcium ions, magnesium ions and the like in water or scale molecules, such as calcium carbonate molecules, magnesium carbonate molecules and the like formed in water, and then stably disperses in the water; and the probability of scale deposit such as calcium carbonate or magnesium carbonate formed by heating water is reduced by the scale inhibitor. It will be appreciated that magnesium carbonate is a sparingly soluble substance which readily reacts with water on heating to form a more stable magnesium hydroxide precipitate, and that reducing the amount of magnesium carbonate means reducing the amount of magnesium hydroxide precipitate. It should be understood that the scale inhibitor in this embodiment is a scale inhibitor that can be co-extruded with plastic pellets and molded by injection molding. Further, the scale inhibitor is solid so as to be convenient for being blended and extruded with plastic particles.
In one embodiment, the outer cylinder body 100 is provided with a water inlet 10, and the water inlet 10 is communicated with the cavity. The scale inhibitor is mixed in the water inlet 10 in the injection molding process, so that the water inlet 10 forms an inner wall containing scale inhibitor molecules, water introduced into the containing cavity of the outer barrel body 100 from the water inlet 10 firstly contacts the inner wall containing the scale inhibitor molecules of the water inlet 10 and reacts with the scale inhibitor molecules on the inner wall of the water inlet 10, and the content of scale formation ions in water flow is reduced primarily.
In one embodiment, the outer cylinder body 100 is provided with a water outlet 20, and the water outlet 20 is communicated with the cavity. The scale inhibitor is mixed in the water outlet 20 during the injection molding process, so that the water outlet 20 forms an inner wall containing scale inhibitor molecules, water entering the containing cavity is subjected to scale inhibition by the inner wall containing the scale inhibitor molecules of the outer barrel body 100 and discharged through the water outlet 20, and the scale inhibitor molecules on the inner wall of the water outlet 20 react to further reduce the content of scale formation ions in the water, so that the scale inhibition effect is improved.
In an embodiment, in the injection molding process of the outer cylinder body 100, the plastic particles and the scale inhibitor are uniformly mixed, melted, extruded and injection molded to form the cylinder structure of the outer cylinder body 100, a certain strength is provided for the outer cylinder body 100 to form a supporting force, and simultaneously, the scale inhibitor has a scale inhibiting effect, and is easy to process, and the whole cylinder inner wall of the outer cylinder body 100 contains the scale inhibitor molecules, so that the surface area of the containing cavity is increased, and the scale inhibiting effect is increased. Water enters the cavity between the outer barrel body 100 and the roller, the water contacts the inner wall of the outer barrel body 100 containing scale inhibitor molecules, the water contacts the scale inhibitor molecules, the scale inhibitor molecules react with the water in the cavity, the water is subjected to scale inhibition by the scale inhibitor, the water quality is softened, the content of scale ions in the water in the cavity is reduced, and then the formation of scale in the flowing process of the water flow on the surfaces of all parts in the clothes treatment device after being discharged from the cavity can be reduced.
In yet another embodiment, the tub body 100 includes: a first injection molding part made of a mixture of plastic particles and scale inhibitor for forming an inner wall structure of the tub body 100 containing scale inhibitor molecules; a second injection molding part made of plastic particles for forming a cylindrical structure of the outer cylinder body 100 to provide a supporting force; the first injection molding part covers the inner surface of the cylinder structure of the second injection molding part. Through twice moulding plastics, the section of thick bamboo wall structure of urceolus body 100 is formed with the second portion of moulding plastics of laminating mutually to the first portion of moulding plastics for the first portion of moulding plastics that is located urceolus body 100 section of thick bamboo inboard provides and presses down dirt performance, guarantees the intensity of urceolus body 100 through the second portion of moulding plastics simultaneously. In addition, the first injection molding part is located between the second injection molding part and the cavity, namely the second injection molding part is not in contact with water contained in the cavity, the second injection molding part does not comprise a scale inhibitor, the using amount of the scale inhibitor in the outer barrel body 100 is reduced, and the cost is saved.
In one embodiment, water is introduced from the water inlet 10 of the tub body 100 into the cavity between the tub body 100 and the drum, contacts the inner wall of the tub body 100 containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the content of metal ions such as calcium ions and magnesium ions which are easy to scale, and then is introduced into the drum for clothes treatment. On one hand, the temperature in the drum is higher due to procedures such as drying, steam sterilization and the like, on the other hand, washing water in the drum contains a washing agent due to procedures such as washing and the like, the water in the drum is easy to scale due to temperature rise or metal ions in the water react with the washing agent to generate insoluble matters, so that the washing effect of the washing agent is influenced, the content of metal ions which are easy to scale such as calcium ions and magnesium ions and the like entering the water in the drum is reduced, and the scaling condition of the water on the inner wall of the drum and clothes is further reduced or the washing effect of the washing agent is ensured. In another embodiment, the waste water after the clothes in the drum are treated is discharged into the cavity between the tub body 100 and the drum, the waste water contacts the inner wall of the tub body 100 containing scale inhibitor molecules and reacts with the scale inhibitor molecules to reduce the content of metal ions such as calcium ions and magnesium ions which are easy to scale in the waste water, and then the waste water is discharged from the water outlet 20 of the tub body 100 to reduce the scale formed by the waste water discharged from the tub body 100 in the drainage flowing process to pollute the clothes treatment device.
Furthermore, the first injection molding part is partially covered on the inner surface of the cylinder structure of the second injection molding part along the water flow direction. Because the water flow process when the water flow enters the cavity between the outer barrel body 100 and the roller can not pass through the whole surface of the inner wall of the outer barrel body 100, the inner surface of the barrel structure of the second injection molding part is partially covered by the injection molding part along the water flow direction, the scale inhibition effect of the water flow in the cavity is ensured, and meanwhile, the using amount of the scale inhibitor is saved.
In one embodiment, the first injection molding part is arranged at the bottom of the cylinder structure of the second injection molding part. After water flow enters the containing cavity between the outer barrel body 100 and the roller, the water flow flows towards the bottom of the inner wall of the outer barrel body 100 under the action of the gravity of the water flow until the water flow is accumulated at the bottom of the inner wall of the outer barrel body 100, the water flow can stay at the bottom of the inner wall of the outer barrel body 100 for a period of time, the first injection molding part is arranged at the bottom of the barrel structure of the second injection molding part, the contact time of the water flow and the inner wall of the outer barrel body 100 containing scale inhibitor molecules is prolonged, and the scale inhibition effect is improved.
In one embodiment, the number of the first injection molding parts is at least two, and the first injection molding parts are respectively distributed on the inner surface of the cylinder structure of the second injection molding part along the water flow direction, so that the scale inhibiting effect on water flow in the cavity is ensured, and the using amount of a scale inhibitor is saved.
In an embodiment, a hollow structure is disposed on one side of the outer cylinder body 100 close to the cavity. When the outer cylinder body 100 is integrally prepared by injection molding of a mixture of plastic particles and a scale inhibitor, the mixture mixed with the plastic particles and the scale inhibitor is melted and extruded during injection molding, and a hollow structure is formed on one side of the outer cylinder body 100 close to the cavity by injection molding. When the outer barrel body 100 comprises the first injection molding part and the second injection molding part, a hollow structure is formed during injection molding of the first injection molding part. When the water flow entering the containing cavity flows to the hollow structure, the water flow can pass through the inside and the outside of the hollow structure, the area of the inner wall of the outer barrel body 100, which is contacted by the water flow, containing scale inhibitor molecules is increased, the amount of the scale inhibitor molecules contacted by the water flow is increased, and the scale inhibition effect is improved.
In one embodiment, the outer contour of the inner wall of the outer cylinder body 100 containing scale inhibitor molecules is a wavy surface structure. The wavy structure increases the surface area of the inner wall of the outer cylinder body 100 containing scale inhibitor molecules, thereby increasing the amount of the scale inhibitor molecules contacted by water flow and improving the scale inhibition effect. In addition, the wavy surface changes the water flow direction, plays the role of stirring the flowing water flow, enables the flowing water flow to be contacted with more water, and improves the scale inhibition effect. Further, part of the water entering the cavity between the outer cylinder body 100 and the roller flows downwards along the inner wall of the outer cylinder body 100 under the self-gravity, and part of the water directly falls without contacting the inner wall of the outer cylinder body 100; part of water contacts the inner wall of the outer cylinder body 100 and flows downwards, and the wavy surface structure on the surface of the inner wall of the outer cylinder body 100 enables the surface of the inner wall of the outer cylinder body 100 to be uneven, so that the water contacting the inner wall of the outer cylinder body 100 is stirred, and the water flow is fully contacted with the scale inhibitor in the water flow.
In an embodiment, the thickness of the second injection part is greater than that of the first injection part, so that the outer cylinder body 100 has a scale inhibiting effect on water in the cavity and simultaneously guarantees the structural strength of the outer cylinder body 100.
In one embodiment, the plastic particles include, but are not limited to, polypropylene particles, polyethylene particles, ABS particles. The polypropylene particles are low in cost, high in impact resistance, high in mechanical property and tough, and can resist corrosion of various organic solvents and acid and alkali. The polyethylene particles have low temperature performance, insulation, and acid and alkali corrosion resistance. The ABS particles have impact resistance, heat resistance and low temperature resistance. Further, the scale inhibitor is in a powder form so as to be blended and extruded with plastic particles.
In one embodiment, the scale inhibitor is a slow release scale inhibitor, and releases scale inhibitor molecules into the cavity between the outer cylinder body 100 and the roller at a certain rate, so that the cavity is filled with the scale inhibitor molecules, and after water enters the cavity, the scale inhibitor molecules are easily dissolved in the water, are dissolved in the water and perform scale inhibition treatment on the water, so as to reduce the content of scale molecules such as calcium ions, magnesium ions and the like which are easy to scale or calcium carbonate molecules, magnesium carbonate molecules and the like which are formed in the water. Further, the scale inhibition principle of the slow release scale inhibitor includes chelation, adsorption and dispersion as described above, and also includes lattice distortion. When the scale inhibitor plays a role of lattice distortion, the scale inhibitor molecules filled in the cavity are adsorbed on the lattice point needles of the active growth points of the crystals in the scale forming process, so that the scale crystals cannot be normally produced according to lattice arrangement, the scale crystals are distorted, and the internal stress of the scale crystals is increased to cause the scale crystals to break, thereby preventing the microcrystals from depositing and scaling and realizing the scale inhibition.
Example 2
The invention provides a method for preparing a scale inhibiting outer cylinder of an object processing device, which specifically comprises the following steps as shown in figure 2:
s1, placing the plastic particles and the scale inhibitor into an injection molding machine as injection molding raw materials; further, mixing the plastic particles with the scale inhibitor and fully stirring for 10-20 min, so that the polypropylene particles and the scale inhibitor are fully mixed and then are placed into a charging basket of an injection molding machine;
s2, starting injection molding by an injection molding machine, and injecting the fully molten and mixed plastic and the scale inhibitor into a mold to obtain the outer cylinder body 100.
Further, step S1 includes the steps of placing the plastic granules into a second barrel of the injection molding machine; step S2 is specifically that the injection molding machine starts injection molding to obtain the outer cylinder body 100 including the first injection molding part and the second injection molding part. Wherein, the first injection molding part is made by injection molding of a mixture of plastic particles and a scale inhibitor and is used for forming an inner wall structure of the outer cylinder body 100 containing scale inhibitor molecules; the second injection molding part is made of plastic particles and is used for forming a cylinder structure of the outer cylinder body 100 so as to provide a supporting force; the first injection molding part covers the inner surface of the cylinder structure of the second injection molding part. Specifically, a first injection part can be formed by injection molding, and then a second injection part can be formed by injection molding on the outer surface of the first injection part; or, the second injection molding part is formed by injection molding first, and then the first injection molding part is formed by injection molding on the inner side of the cylinder structure of the second injection molding part, so as to manufacture the outer cylinder body 100.
Further, the plastic particles in step S1 are polypropylene particles.
Further, in step S1, the scale inhibitor is in a solid state, and the weight of the solid scale inhibitor accounts for 5% -25% of the weight of the plastic particles.
Further, as shown in fig. 3, the step S1 further includes the step S11: and adding the mixture of the polypropylene particles and the solid scale inhibitor into a high-speed mixer, and stirring for 10-20 min at 50-60 ℃ to fully mix the polypropylene particles and the solid scale inhibitor.
Further, the step S1 further includes the step S12: adding a mixture obtained by fully mixing polypropylene particles and the scale inhibitor into a double-screw extruder for granulation, wherein the extrusion temperature is 170-230 ℃, and the screw rotation speed is 100-150 revolutions per minute, so as to obtain modified polypropylene particles; and (3) putting the modified polypropylene particles into a charging basket of an injection molding machine. And (3) starting injection molding by using an injection molding machine to obtain the outer cylinder body 100.
Further, the injection molding temperature in step S2 is 220 ℃ to 260 ℃.
In one embodiment, the scale inhibitor is polyphosphate scale inhibitor particles.
In order to illustrate the invention herein, various specific examples are set forth below. It should be understood that these examples are for illustrative purposes only and are not to be construed as limiting the invention in any way.
Example 3
Adding the mixture of the polypropylene particles and the polyphosphate scale inhibitor particles into a high-speed mixer, and stirring for 20min at 55 ℃ to fully mix the polypropylene particles and the polyphosphate scale inhibitor particles; wherein the weight of the polyphosphate scale inhibitor particles accounts for 10 percent of the weight of the plastic particles. Adding a mixture obtained by fully mixing polypropylene particles and polyphosphate scale inhibitor particles into a double-screw extruder for granulation, wherein the extrusion temperature is 185 ℃, and the screw rotation speed is 120 revolutions per minute, so as to obtain modified polypropylene particles; and (3) putting the modified polypropylene particles into a charging basket of an injection molding machine. And (3) starting an injection molding machine to perform injection molding, wherein the injection molding temperature is 220-260 ℃, and the first cylindrical tank body is prepared, the inner diameter of the first tank body is 10cm, and the length of the first tank body is 40 cm.
Example 4
Adding the mixture of the polypropylene particles and the polyphosphate scale inhibitor particles into a high-speed mixer, and stirring for 10min at 60 ℃ to fully mix the polypropylene particles and the polyphosphate scale inhibitor particles; wherein the weight of the polyphosphate scale inhibitor particles accounts for 25 percent of the weight of the plastic particles. Adding a mixture obtained by fully mixing polypropylene particles and polyphosphate scale inhibitor particles into a double-screw extruder for granulation, wherein the extrusion temperature is 230 ℃, and the screw rotation speed is 150 revolutions per minute, so as to obtain modified polypropylene particles; and (3) putting the modified polypropylene particles into a charging basket of an injection molding machine. And (3) starting an injection molding machine to perform injection molding, wherein the injection molding temperature is 220-260 ℃, and the cylindrical second tank body is prepared, the inner diameter of the second tank body is 10cm, and the length of the second tank body is 40 cm.
Comparative example 1
And (3) placing the polypropylene particles into a charging basket of an injection molding machine, starting the injection molding machine to perform injection molding, wherein the injection molding temperature is 220-260 ℃, and preparing a cylindrical comparison tank body, wherein the inner diameter of the comparison tank body is 10cm, and the length of the comparison tank body is 40 cm. The shape of the internal outline of the tank body cavity of the control group is consistent with that of the internal outline of the tank body of the experimental group, and the size of the internal outline of the tank body cavity of the control group is consistent with that of the internal outline of the tank body of the experimental group.
Example 5
Three groups of experimental water are respectively prepared, and 2L of deionized water is used for dissolving calcium chloride and magnesium chloride in the experimental water, so that the concentrations of calcium ions and magnesium ions in the experimental water are respectively 450mg/L and 200 mg/L. 2L of experimental water was introduced into the first tank of example 3, the second tank of example 4, and the control tank of comparative example 1, respectively, and left to stand for 10min, and the experimental water was taken out to test the concentrations of calcium ions and magnesium ions in the experimental water in the first tank, the second tank, and the control tank, as shown in Table I.
Watch 1
As can be seen from the table I, the invention can reduce the concentration of calcium ions and magnesium ions in water in the cavity by mixing and injecting the plastic particles and the scale inhibitor into the inner wall of the outer cylinder body 100 containing scale inhibitor molecules, thereby achieving the scale inhibiting effect and reducing the pollution of the clothes treatment device by scale.
Example 6
The invention provides a washing machine, which comprises a scale inhibiting outer cylinder of a clothes treatment device. Specifically, the washing machine body 100 includes a box body, the outer tub body 100 and the drum are both disposed in the box body, a motor is disposed between the outer tub body 100 and the box body, a rotating shaft of the drum is connected to the motor, the drum is rotatably disposed in the outer tub body 100, and a containing cavity is disposed between the drum and the outer tub body 100 for injecting water and facilitating rotation of the drum in the outer tub body 100. When the outer cylinder body 100 is processed and formed, the scale inhibitor is injected, and the inner wall of the outer cylinder body 100 containing scale inhibitor molecules, namely water in the containing cavity can contact the scale inhibitor, so that the water entering the containing cavity can be inhibited from scaling, and the water quality is softened. In one embodiment, water is supplied to the clothes treatment device from the outside, a water path in the clothes treatment device is introduced into a cavity between the outer drum body 100 and the drum from the water inlet 10 of the outer drum body 100, part of water flows down along the inner wall of the outer drum body 100 until the water flows to the bottom of the cavity, part of the water flows directly fall to the bottom of the cavity, the scale inhibitor on the inner wall of the outer drum body 100 carries out scale inhibition on water contacting the inner wall of the outer drum body 100, and the water softened by water quality is introduced into the drum to treat clothes, so that the probability of water scale deposition on the inner wall of the drum is reduced, and the probability of reaction between a detergent in the drum and washing water is. In another embodiment, the washing water treated by the clothes in the drum is discharged into the cavity between the tub body 100 and the drum, the scale inhibitor in the tub body 100 performs scale inhibition on the water contacting the inner wall of the tub body 100, and the water softened by the water quality is discharged through the water outlet 20 of the tub body 100, so as to reduce the probability of scale formation on the surface of the contacted parts of the clothes treatment device during the flowing process of the water discharged from the water outlet 20. Further, the scale inhibitor is a slow release scale inhibitor, water in a cavity between the outer barrel body 100 and the roller partially contacts the outer barrel body 100 to inhibit scale, and water partially contacts the slow release scale inhibitor and is released to scale inhibitor molecules in the cavity to inhibit scale.
The invention provides a scale inhibiting outer cylinder of a clothes treatment device, wherein a scale inhibitor is mixed in an outer cylinder body in the injection molding process to form an inner wall containing scale inhibitor molecules of the outer cylinder body, so that water quality of water flow entering a containing cavity is purified, the content of ions such as calcium ions, magnesium ions and the like which are easy to scale is reduced, and the water quality is softened.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of adaptation of the invention, and further modifications can be easily implemented by those skilled in the art, so that the invention is not limited to the specific details and the examples shown herein, without departing from the general concept defined by the claims and the scope of equivalents.
Claims (13)
1. A scale-inhibiting outer tub of a laundry treating apparatus includes an outer tub body (100) installed in the laundry treating apparatus; the scale inhibitor is characterized in that the scale inhibitor is mixed in the outer cylinder body (100) in the injection molding process, so that the inner wall containing scale inhibitor molecules is formed on the outer cylinder body (100);
the outer cylinder body (100) and a roller for containing clothes form a cavity for containing water;
water enters the containing cavity and contacts the inner wall of the outer barrel body (100), and scale inhibitor molecules on the surface of the inner wall react with scale ions in water flow to reduce the content of the scale ions in the water flow in the containing cavity.
2. A scale inhibiting outer tub for a laundry treating appliance according to claim 1, characterized in that the outer tub body (100) is provided with a water inlet (10); the scale inhibitor is mixed in the water inlet (10) in the injection molding process.
3. A scale inhibiting tub for a laundry treatment apparatus according to claim 1, characterized in that the tub body (100) is provided with a water outlet (20); the water outlet (20) is mixed with a scale inhibitor in the injection molding process.
4. A scale inhibiting tub for a laundry treatment apparatus according to claim 1, characterized in that the tub body (100) comprises:
a first injection-molded part made of a mixture of plastic particles and a scale inhibitor for forming an inner wall structure of the tub body (100) containing scale inhibitor molecules;
a second injection molding part made of plastic particles for forming a cylindrical structure of the outer cylinder body (100) to provide a supporting force;
the first injection molding part covers the inner surface of the cylinder structure of the second injection molding part.
5. A soil inhibiting outer cylinder for a clothing processing apparatus as claimed in claim 4 wherein the first injection moulding partially covers the inner surface of the cylindrical structure of the second injection moulding in the direction of water flow.
6. A soil inhibiting outer cylinder for a clothing processing apparatus as claimed in claim 4 wherein the first injection moulding is provided at the base of the tubular structure of the second injection moulding.
7. A dirt suppressing outer cylinder for a clothes treating apparatus according to claim 5, wherein the number of the first injection-molded parts is at least two, and the first injection-molded parts are respectively distributed on the inner surface of the cylindrical structure of the second injection-molded part along the flowing direction of the water flow.
8. A soil inhibiting outer cylinder for a garment treatment device as claimed in claim 4 wherein the second shot thickness is greater than the first shot thickness.
9. The scale inhibiting outer cylinder of a clothes treating device according to claim 1, characterized in that a hollow structure is arranged on one side of the outer cylinder body (100) close to the cavity.
10. A scale inhibiting outer tub of a clothes treating apparatus according to claim 1, wherein an outer contour of an inner wall of the tub body (100) containing scale inhibitor molecules is a wavy surface structure.
11. A soil inhibiting outer barrel for a garment treatment device according to any one of claims 1 to 10 wherein the soil inhibiting agent is a slow release soil inhibiting agent.
12. The preparation method of the scale inhibiting outer barrel is characterized by comprising the following steps:
s1, placing the plastic particles and the scale inhibitor into an injection molding machine as injection molding raw materials;
s2, the injection molding machine starts injection molding, so that the fully melted and mixed plastic and the scale inhibitor are injected into the mold to obtain the outer cylinder body (100) according to claim 1.
13. A washing machine comprising a scale-inhibiting outer tub of a laundry treatment apparatus as claimed in any one of claims 1 to 11.
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| CN202011548502.XA CN112726132B (en) | 2020-12-24 | 2020-12-24 | Clothes treatment device |
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