CN112590123A

CN112590123A - Knob, clothes treatment equipment and knob mould

Info

Publication number: CN112590123A
Application number: CN202011381040.7A
Authority: CN
Inventors: 刘仲才; 曹春德; 高飞; 王冰; 韩彤; 朱彪; 张润润
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-04-02

Abstract

The invention discloses a knob, a clothes treatment device and a knob mold. The knob includes: knob body, knob body injection moulding spare as an organic whole, the knob body includes: knob body curb plate, knob body curb plate has along its axial one end and the other end, the axial other end terminal surface of knob body curb plate is equipped with at least one knob runner shaping district that is suitable for the knob runner that corresponds with the knob mould, the periphery wall of knob body curb plate is the outward appearance face, knob body curb plate has wall thickness region such as knob, wall thickness region such as knob extends in the whole axial of knob body curb plate, wall thickness region such as knob is equipped with knob runner shaping district, other regions such as wall thickness region outside such as the knob of knob body curb plate become the wall thickness region for the knob, the wall thickness of wall thickness region such as knob is not less than the regional biggest wall thickness of knob variable wall thickness. According to the knob, the cost is reduced, and the use requirements of users are met.

Description

Knob, clothes treatment equipment and knob mould

Technical Field

The invention relates to the technical field of clothes treatment equipment, in particular to a knob, clothes treatment equipment and a knob mold.

Background

Generally, a laundry treatment apparatus, such as a knob for a drum washing machine, is used to control washing program selection, having dual requirements of function and appearance.

Among the correlation technique, the knob includes the knob body, has the flow mark defect appearing on the product easily when moulding plastics out the knob body, when heavier flow mark appears on the outward appearance face of product, not only leads to the qualification rate of product low, and is with high costs, can't satisfy user's user demand moreover.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a knob, which has a high yield.

The invention also provides a clothes treatment device, which comprises the knob.

The invention also provides a knob mould, which is used for forming the knob body of the knob or forming the knob.

A knob according to an embodiment of the present invention includes: the knob body, the knob body is injection moulding spare as an organic whole, the knob body includes: knob body curb plate, knob body curb plate has along its axial one end and the other end, the axial other end terminal surface of knob body curb plate is equipped with at least one knob runner molding district that is suitable for to correspond with the knob runner of knob mould, the periphery wall of knob body curb plate is the outward appearance face, knob body curb plate has wall thickness region such as knob, wall thickness region such as knob is in extend in the whole axial of knob body curb plate, wall thickness region such as knob is equipped with knob runner molding district, knob body curb plate other regions such as the knob outside the wall thickness region become the wall thickness region for the knob, the wall thickness in wall thickness region such as knob is not less than the regional maximum wall thickness of wall thickness is become to the knob.

According to the knob provided by the embodiment of the invention, the knob gate forming area is arranged in the wall thickness area of the knob, so that the flow lines of the side plate of the knob body can be reduced at least to a certain extent, the flow lines are prevented from appearing on the appearance surface of the side plate of the knob body at least to a certain extent, the qualification rate of the side plate of the knob body is improved at least to a certain extent, the cost is reduced, and the use requirements of users are met.

According to some embodiments of the invention, the knob body comprises a knob body connecting plate, the knob body side plate extends in a ring shape in the circumferential direction of the knob body connecting plate, one axial end of the knob body side plate is connected with the outer circumferential wall of the knob body connecting plate, and the wall thickness of one end of the knob variable wall thickness area far away from the knob body connecting plate is the smallest.

According to some embodiments of the invention, the wall thickness of the variable wall thickness region of the knob is gradually reduced in a direction away from the knob body connecting plate.

According to some embodiments of the invention, the wall thickness of the end of the variable wall thickness region of the knob, which is adjacent to the connecting plate of the knob body, ranges from 2.2mm to 3.2 mm.

According to some embodiments of the invention, the wall thickness of the end of the variable wall thickness region of the knob, which is far away from the connecting plate of the knob body, ranges from 1.5mm to 2.2 mm.

According to some embodiments of the invention, the knob body connecting plate has no appearance surface, and a wall thickness of an end of the knob body connecting plate connected to the knob body side plate is smaller than a wall thickness of an end of the knob variable wall thickness region adjacent to the knob body connecting plate.

According to some embodiments of the invention, the wall thickness of the connecting plate of the knob body ranges from 1.5mm to 2.0 mm.

According to some embodiments of the invention, the knob body comprises: the knob body reinforcing rib is arranged on the inner peripheral wall of the knob body side plate and extends into a sheet shape in the axial direction of the knob body, and the knob body reinforcing rib is located in the wall thickness variable region of the knob.

According to some embodiments of the invention, the knob comprises: the knob cover plate is arranged on the surface of one side, far away from the knob body side plate, of the knob body connecting plate.

According to some embodiments of the invention, the knob body connecting plate is provided with a clamping hole, and the knob cover plate is provided with a clamping hook matched with the clamping hole; or, the knob is an integral injection molding piece.

According to some embodiments of the invention, the knob body is a spray-free piece comprising a resin matrix and metal particles distributed in the resin matrix.

The clothes treatment equipment comprises the knob.

According to the clothes treatment equipment provided by the embodiment of the invention, the knob is arranged, and the knob gate forming area is arranged in the wall thickness area of the knob and the like. Like this, can reduce the flow line of knob body curb plate at least to a certain extent, prevent at least to a certain extent that the flow line from appearing at the outward appearance face of knob body curb plate, improve the qualification rate of knob body curb plate 302 at least to a certain extent, reduce cost satisfies user's user demand.

According to the embodiment of the invention, the knob mould comprises: the knob body side plate knob cavity is provided with a knob sprue which is located on the wall surface of the other axial end of the knob body side plate knob cavity, the knob body side plate knob cavity is provided with a knob equal-thickness area, the knob sprue is located in the knob equal-thickness area, the knob equal-thickness area extends in the whole axial direction of the knob body side plate cavity, other areas outside the knob equal-thickness area of the knob body side plate knob cavity are knob variable-thickness areas, and the thickness of the knob equal-thickness area is not smaller than the maximum thickness of the knob variable-thickness area.

According to the knob mold disclosed by the embodiment of the invention, the knob gate is positioned in the equal-thickness area of the knob, and the thickness of the equal-thickness area of the knob is not less than the maximum thickness of the variable-thickness area of the knob, so that the stability of material flow is ensured to a certain extent, flow marks on the side plate of the knob body are reduced, the yield of knob products is improved to at least a certain extent, and the use requirements of users are met.

In some embodiments of the present invention, the knob cavity includes a knob body connecting plate cavity, the knob body side plate knob cavity extends in a ring shape along a circumferential direction of the knob body connecting plate cavity, an axial end of the knob body side plate knob cavity is communicated with the knob body connecting plate cavity in the entire circumferential direction of the knob body connecting plate cavity, and a thickness of an end of the knob variable thickness region far away from the knob body connecting plate cavity is the smallest.

In some embodiments of the present invention, the thickness of the variable thickness region of the knob is gradually reduced in a direction away from the cavity of the knob body connecting plate.

In some embodiments of the present invention, the thickness of the variable thickness region of the knob at one end adjacent to the cavity of the connection plate of the knob body ranges from 2.2mm to 3.2 mm.

In some embodiments of the invention, the thickness of the wall of the end of the knob variable thickness region, which is far away from the knob body connecting plate cavity, ranges from 1.5mm to 2.2 mm.

In some embodiments of the present invention, a thickness of an end of the knob body connecting plate cavity in communication with the knob body side plate cavity is smaller than a thickness of an end of the knob variable thickness region adjacent to the knob body connecting plate cavity.

In some embodiments of the present invention, the thickness of the connecting plate cavity of the knob body ranges from 1.5mm to 2.0 mm.

In some embodiments of the present invention, the knob cavity includes a knob body reinforcing rib cavity, the knob body reinforcing rib cavity is located on the inner periphery of the knob body side plate cavity and is communicated with the knob body side plate cavity, the knob body reinforcing rib cavity extends in the axial direction of the knob body side plate cavity to form a sheet shape, and the knob body reinforcing rib cavity is located in the knob variable thickness region.

In some embodiments of the present invention, the knob mold core has a knob cover plate cavity, and the knob cover plate cavity is disposed on a side of the knob body connecting plate cavity far away from the knob body side plate cavity and is communicated with the knob cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a knob body according to some embodiments of the invention;

FIG. 1a is a schematic view of another orientation of the knob body according to FIG. 1;

FIG. 2 is a cross-sectional view taken along the direction N-N of FIG. 1, wherein the arrow C1 is the axial direction of the side plate of the knob body;

FIG. 3 is a cross-sectional view taken along the direction O-O shown in FIG. 1;

FIG. 4 is an enlarged view of the circled portion at P shown in FIG. 3;

FIG. 5 is a schematic view of a knob mold according to some embodiments of the invention;

FIG. 6 is a cross-sectional view taken along the line Q-Q of FIG. 5;

FIG. 7 is an enlarged view of the circled portion at T shown in FIG. 6;

FIG. 8 is a cross-sectional view taken along the direction R-R shown in FIG. 5;

FIG. 9 is an enlarged view of the circled portion at U shown in FIG. 8;

FIG. 10 is a cross-sectional view taken along the direction S-S shown in FIG. 5;

FIG. 11 is a schematic view of the flow of material within a side plate type cavity of a knob body according to some embodiments of the invention;

FIG. 12 is a schematic view of the flow of material within a side plate type cavity of a knob body according to further embodiments of the present invention;

FIG. 13 is a schematic view of the flow of material within a panel side panel cavity according to further embodiments of the present invention;

FIG. 14 is a schematic view of the flow of material within a panel side panel cavity according to further embodiments of the present invention;

FIG. 15 is a schematic view showing the flow of material in a cavity according to the related art;

FIG. 16 is a schematic view of a knob cover plate according to some embodiments of the invention;

FIG. 17 is an enlarged view of the circled portion at D in FIG. 16;

fig. 18 is a sectional view taken along the direction of I-I shown in fig. 17, in which an arrow thickness B1 is a thickness direction of the cap connection part and an arrow thickness B2 is a thickness direction of the cap body;

FIG. 19 is a schematic view of a knob cover plate mold according to some embodiments of the invention;

FIG. 20 is a cross-sectional view taken along the line K-K in FIG. 19;

FIG. 21 is a cross-sectional view taken along the direction J-J shown in FIG. 19;

FIG. 22 is a schematic illustration of a knob cover plate according to further embodiments of the invention;

FIG. 23 is a schematic view according to another orientation of the knob cover plate shown in FIG. 22.

Reference numerals:

a knob cover plate 20; a cover plate body 203; a cover plate gate molding area 2031; cover plate connecting ribs 204; a cover plate connecting rib body 2041; a cover plate connecting portion 2042;

a knob cover plate mold 2; a knob cover plate mold insert 21; a cover body cavity 213; cover plate tie bar cavities 214; the cover plate connecting rib body cavity 2141; a cover plate connecting portion cavity 2142;

a knob body 30; a knob body connecting plate 301; a knob body side plate 302; a knob equal wall thickness area 3021; a knob wall thickness-variable region 3022; a knob gate molding area 3023;

a knob mold 3; a knob core 31; the knob body is connected with the plate cavity 311; a knob body side plate knob cavity 312; a knob equal thickness region 3121; the knob becomes thicker area 3122.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The knob includes knob body 30, and knob body 30 manufacturing process is mostly the + spraying process of moulding plastics, and knob body 30 after the spraying possesses gorgeous metal appearance effect, but spraying process exists the pollution big, with high costs, the qualification rate is low, scrap back shortcoming such as can not be retrieved, seriously influences environment and production personnel's health, does not conform to the concept of green manufacturing. In order to overcome the defects of the spraying process, the spraying-free thermoplastic engineering material is produced at the right moment, and the spraying-free injection molding can give the metal appearance effect to the product, so that the spraying process is cancelled, the aim of reducing the production cost is fulfilled, and meanwhile, the emission of pollutants in the spraying process is avoided.

No matter the knob body 30 is injection molded by adopting a spraying-free material or the knob body 30 is manufactured by adopting an injection molding and spraying process, for a material with poor flowability, particularly a spraying-free material containing metal particles, due to the existence of substances such as the metal particles in the spraying-free material, the metal particles are unevenly distributed when the material is obstructed in the flowing process in the injection molding process, so that light scattering occurs under the irradiation of light when a product is injection molded, flow marks are formed on the product visually, the flow mark defect occurs on the product, and when the flow marks occur on the appearance surface of the product, the product has low qualification rate and the use requirement of a user cannot be met. In the following description, a coating-free material containing metal particles is exemplified, that is, the below-described knob body 30 may be a coating-free member including a resin matrix and metal particles distributed in the resin matrix. Optionally, the metal particles are copper, aluminum or silver.

The knob, the laundry treating apparatus and the knob mold 3 according to the embodiment of the present invention are described below with reference to the accompanying drawings. Optionally, the laundry treating apparatus is a washing machine, a dryer or a washer-dryer.

As shown in fig. 1 and 1a, a knob according to an embodiment of the present invention includes: knob body 30, knob body 30 are the integrative piece of moulding plastics, promptly knob mould 3 can be used for shaping knob body 30 at least, from this, knob body 30 structure, the stability of performance can not only be guaranteed to the structure of an organic whole to convenient shaping, manufacturing are simple, have saved unnecessary assembly part and connection process moreover, guarantee the reliability that knob body 30 connects, moreover, the bulk strength and the stability of the structure of an organic whole formation are higher, and it is more convenient to assemble, and the life-span is longer.

As shown in fig. 1, 1a and 2, the knob body 30 includes: a knob body connecting plate 301 and a knob body side plate 302.

Referring to fig. 1, the knob body side plate 302 extends in a ring shape in the circumferential direction of the knob body connection plate 301. That is to say, the knob body side plate 302 is annular, the knob body side plate 302 surrounds the knob body connecting plate 301, one axial end of the knob body side plate 302 is connected to the outer peripheral wall of the knob body connecting plate 301, and the end face of the other axial end of the knob body side plate 302 is provided with at least one knob gate molding area 3023 suitable for corresponding to the knob gate of the knob mold 3.

Specifically, adopt knob mould 3 to mould plastics out knob body blank and knob body blank from knob mould demolding back, the material of knob gate department of knob mould 3 will partly leave over on knob body blank and form knob gate shaping portion, and knob gate shaping area 3023 of knob body blank is the region that this knob gate shaping portion is located. The knob body blank is processed to cut off or partially cut off the knob gate forming part, and the knob gate forming part of the knob body blank is not processed, that is, the knob gate forming part is reserved on the knob body, which is not specifically limited, and can be set according to actual production requirements.

Here, it is understood that one axial end of the knob body side plate 302 is an end connected to the outer peripheral wall of the knob body connection plate 301, and the other axial end of the knob body side plate 302 is an end distant from the knob body connection plate 301.

The outer peripheral wall of knob body curb plate 302 is the outward appearance face, and the surface of knob body connecting plate 301 and the interior perisporium wall of knob body curb plate 302 are non-outward appearance face, and the terminal surface of the one end of knob body curb plate 302 of keeping away from knob body connecting plate 301 is non-outward appearance face. The external appearance surface means that the surface is exposed when the knob is used in the laundry treating apparatus. The non-exterior surface means that the surface is not exposed when the knob is used in the laundry treating apparatus.

As shown in fig. 2, the knob body side plate 302 has a knob equal wall thickness region 3021, the knob equal wall thickness region 3021 extends in the entire axial direction of the knob body side plate 302, that is, in the entire axial direction of the knob body side plate 302, the knob equal wall thickness region 3021 extends to both ends of the knob body side plate 302, and the wall thickness at any position of the knob equal wall thickness region 3021 is equal.

As shown in fig. 3-4, the knob equal-wall-thickness region 3021 is provided with a knob gate forming region 3023, the region other than the knob equal-wall-thickness region 3021 of the knob body side plate 302 is a knob variable-wall-thickness region 3022, the wall thickness of the knob equal-wall-thickness region 3021 is not smaller than (i.e., equal to or larger than) the maximum wall thickness of the knob variable-wall-thickness region 3022, and the wall thickness of the end of the knob variable-wall-thickness region 3022 away from the knob body connecting plate 301 is the smallest. Like this, can reduce the flow line of knob body curb plate 302 at least to a certain extent, prevent at least to a certain extent that the flow line from appearing at the outward appearance face of knob body curb plate 302, improve the qualification rate of knob body curb plate 302 at least to a certain extent, reduce cost satisfies user's user demand.

In order to facilitate explanation of the reason for reduction of the flow lines of the outer appearance surface of the knob body side plate 302, the knob mold 3 for molding the knob body 30 or for molding the knob according to the embodiment of the present invention is described below, and the reason for reduction of the flow lines of the outer appearance surface of the knob body side plate is explained in principle in conjunction with the structure of the knob mold 3. .

As shown in fig. 5, the knob mold 3 according to the embodiment of the present invention includes: the knob mold core 31, the knob mold core 31 has a knob cavity.

As shown in fig. 6, the knob cavity includes a knob body side plate cavity 312 and a knob body connecting plate cavity 311, the knob body side plate cavity 312 extends in a ring shape along the circumferential direction of the knob body connecting plate cavity 311, one axial end of the knob body side plate cavity 312 is communicated with the knob body connecting plate cavity 311 in the whole circumferential direction of the knob body connecting plate cavity 311, and the knob mold core 31 has a knob gate located on the other axial end wall surface of the knob body side plate cavity 312.

As shown in fig. 6 to 9, the knob body side plate cavity 312 has a knob equal thickness region 3121, the knob gate is located in the knob equal thickness region 3121, the knob equal thickness region 3121 extends in the entire axial direction of the knob body side plate cavity 312, the regions other than the knob equal thickness region 3121 of the knob body side plate cavity 312 are knob variable thickness regions 3122, the thickness of the knob equal thickness region 3121 is not less than the maximum thickness of the knob variable thickness region 3122, and the thickness of one end of the knob variable thickness region 3122 away from the knob body connecting plate cavity 311 is the smallest.

Specifically, during injection molding, in the material flowing process, hotter melt enters the knob cavity of the knob mold 3 through the knob gate and then contacts with the inner wall of the cooler knob cavity in the flowing process, and the material can be quickly frozen on the inner wall of the knob cavity to form a thin solidified layer. The arrangement of the metal particles in the solidified layer determines the appearance quality of the spray-free product, and stable flow can form consistent metal particle orientation to obtain better appearance. In this application, because knob runner molding area 3023 is located knob equal wall thickness area 3021, and the thickness of knob equal wall thickness area 3021 is not less than the maximum thickness of knob variable wall thickness area 3022, when the material flows out from the knob runner of knob mould 3 like this, the material can directly flow to knob equal thickness area 3121, and be full of knob equal thickness area 3121, later most of material flows from knob equal thickness area 3121's both sides respectively along the circumference of knob body curb plate die cavity 312 towards knob variable wall thickness area 3122, thereby be favorable to the material preferentially at knob body curb plate die cavity 312 shaping, thereby can reduce the flow line of knob body curb plate 302 at least to a certain extent, prevent that the flow line from appearing at the outward appearance face of knob body curb plate 302, improve the qualification rate of product, and reduce cost, and meet the use demands of users.

And because the thickness of the end of the knob body variable thickness region 3122 far away from the knob body connecting plate cavity 311 is the smallest, that is, along the axial direction of the knob body side plate cavity 312, the thickness of the part (called large thickness part) of the knob variable thickness region 3122 adjacent to the knob body connecting plate cavity 311 and directly communicated with the position where the thickness of the knob variable thickness region 3122 is the smallest is inevitably greater than the thickness of the end of the knob body connecting plate cavity 311 far away from the knob body variable thickness region 3122, in the circumferential direction of the knob body connecting plate cavity 311, when the material flows, the material flows more easily at the large thickness part, the flow speed is faster, the material has a front convex tendency at the large thickness part, there is a clear front flow at the large thickness part, the actual flow direction of the material at each point of the front surface is along the direction perpendicular to the tangent line of the front surface, so the flow direction of the front surface is divergent, can not intersect to just can not take place to curl and the upset, be favorable to avoiding the material of heavy gauge portion department and the material of little thickness portion department to a certain extent to curl and the upset in the position in the front edge, further guarantee the stability that the material flows, thereby reduce the flow line in the position department that corresponds with heavy gauge portion and little thickness portion of knob body curb plate 302, improve the yield of knob product at least to a certain extent, satisfy user's user demand.

The following may exist with respect to the varying relationship of the knob wall thickness varying region 3022 of the knob body side plate 302:

the first method comprises the following steps: the wall thickness of the knob variable wall thickness region 3022 is gradually reduced in a direction away from the knob body connection plate 301 in the axial direction of the knob body side plate 302. Specifically, in the knob mold 3, the thickness of the knob variable thickness region 3122 is gradually reduced in a direction away from the knob body connecting plate cavity 311, so that when the material flows along the knob body side plate cavity 312 in the circumferential direction of the knob body connecting plate cavity 311, the material flows more easily at a position having a larger thickness and the flow resistance is smaller based on the thickness change of the knob variable thickness region 3122, so that the leading surface of the material flowing exhibits a slope as shown in fig. 11, and the actual flow direction of the material at each point of the leading surface is in an outward direction perpendicular to the tangent of the leading surface, so that the flow directions of the points of the leading surface are divergent and do not meet, so that the material at the leading edge does not curl or turn over each other, and the flow of the material is more stable, so that the flow lines of the knob body side plate 302 can be further reduced, further prevent that the flow line from appearing in the outward appearance face of knob body curb plate 302, further improve the qualification rate of knob, reduce cost satisfies user's user demand.

And the second method comprises the following steps: along the axial direction of the knob body side plate 302, in the direction away from the knob body connecting plate 301, the wall thickness of the knob variable wall thickness area 3022 is kept constant firstly and then gradually reduced. Specifically, in the knob mold 3, the thickness of the knob variable thickness region 3122 is first kept constant and then gradually decreased in the direction away from the knob body connecting plate cavity 311, so that when the material flows in the circumferential direction of the knob body connecting plate cavity 311, the material flows more easily at a position having a larger thickness and the flow resistance is smaller based on the thickness change of the knob variable thickness region 3122, so that the material flows more easily at a position having a larger thickness at a leading surface where the material flows, as shown in fig. 13, a surface which is substantially parallel to the axial direction of the knob body side plate cavity 312 at a position having the same thickness, and a surface which is inclined toward the upstream of the material flow occurs at a position having a gradually decreased thickness, and the actual flow direction of the material at each point of the leading surface is in the outward direction perpendicular to the tangent to the leading surface, so that the flow directions of each point of the leading surface are divergent and do not meet, thereby can not appear curling and upset each other between the material of front edge department, the flow of material is more stable, like this, can further reduce knob body curb plate 302's flow line, further prevents that the flow line from appearing in knob body curb plate 302's outward appearance face, further improves the qualification rate of knob, and reduce cost satisfies user's user demand.

Thirdly, along the axial direction of the knob body side plate 302, in the direction away from the knob body connecting plate 301, the wall thickness of the knob body side plate 302 is gradually increased and then gradually decreased. Specifically, in the knob mold 3, in the direction away from the knob body connecting plate cavity 311, the thickness of the knob body side plate cavity 312 gradually increases and then gradually decreases, so that in the circumferential direction of the knob body connecting plate cavity 311, when the material flows, the material flows more easily at the position with larger thickness and the flow resistance is smaller based on the thickness change of the knob variable wall thickness region 3022, so that the front edge surface of the material flowing presents a front convex type as shown in fig. 12, the actual flow direction of the material at each point of the front edge surface is in the direction perpendicular to the tangent line of the front edge surface, therefore, the flow directions of each point of the front edge surface are divergent and do not meet, the material at the front edge does not curl or turn over each other, the flow of the material is more stable, and thus, the flow lines of the knob body side plate 302 can be further reduced, further prevent that the flow line from appearing in the outward appearance face of knob body curb plate 302, further improve the qualification rate of knob, reduce cost satisfies user's user demand.

Fourth, the wall thickness of the knob variable wall thickness region 3022 is gradually increased, then maintained, and then gradually decreased in a direction away from the knob body attachment plate 301 along the axial direction of the knob body side plate 302. Specifically, in the knob mold 3, in the direction away from the knob body connecting plate 301, the thickness of the knob variable thickness region 3122 gradually increases, then remains unchanged, and then gradually decreases, so that in the circumferential direction of the knob body connecting plate cavity 311, when the material flows, the material flows more easily at the position with larger thickness and the flow resistance is smaller based on the thickness change of the knob variable thickness region 3022, so that the material can present a front convex type as shown in fig. 14 on the front edge surface where the material flows, the actual flow direction of the material at each point of the front edge surface is in the direction perpendicular to the tangent line of the front edge surface, therefore, the flow directions of each point of the front edge surface are divergent and do not meet, no curling or turning occurs between the materials at the front edge, the flow of the material is more stable, and thus, the flow lines of the knob body side plate 302 can be further reduced, further prevent that the flow line from appearing in the outward appearance face of knob body curb plate 302, further improve the qualification rate of knob, reduce cost satisfies user's user demand.

Therefore, compared to the prior art in which the front surface is concave as shown in fig. 15, the above-mentioned embodiment of the present application is more beneficial to reducing the flow lines of the side plate 302 of the knob body.

The greater the wall thickness, the faster the flow rate of the material will be described.

When the material is injected into the knob mold 3 under a certain condition, the temperature of the cold wall surface of the cavity of the knob body contacted by the material is sharply reduced, a solidified layer is generated, the flow area of the cavity of the knob body is reduced along with the increase of the thickness of the solidified layer, and therefore the thickness of the solidified layer has an important influence on the flow resistance. The relation between the fluidity s and the thickness h of the panel cavity is a formula I:

wherein eta is_repIs the viscosity of the material.

From the flowability formula, the flowability s is proportional to the cube of the thickness h, for example, a fifty percent reduction in thickness reduces the flowability by one eighth, which equates to an eight-fold increase in flow resistance. From this, the thickness of knob body curb plate die cavity is bigger to the flow resistance is less, and the mobility is better, and the velocity of flow is also faster.

In summary, according to the knob mold 3 for molding the knob or the knob body 30 of the laundry treating apparatus of the embodiment of the present invention, since the knob gate is located in the knob equal thickness region 3121, and the thickness of the knob equal thickness region 3121 is not less than the maximum thickness of the knob variable thickness region 3122, flow lines on the side plate of the knob body are reduced, the yield of the knob product is improved at least to some extent, and the use requirements of the user are met.

According to the knob of the clothes treatment equipment, the knob gate forming area 3023 is arranged in the knob equal-wall-thickness area 3021, and the wall thickness of the knob equal-wall-thickness area 3021 is not smaller than the maximum wall thickness of the knob variable-wall-thickness area 3022, so that the flow lines of the knob body side plate 302 can be reduced at least to a certain degree, the flow lines are prevented from appearing on the appearance surface of the knob body side plate 302 at least to a certain degree, the qualification rate of the knob body side plate 302 is improved at least to a certain degree, the cost is reduced, and the use requirements of users are met.

In some embodiments of the present invention, the size of the knob equal wall thickness area 3021 ranges from 10mm to 50mm in the circumferential direction of the knob body side plate 302. For example, the wall thickness area 3021 of the knob or the like has a length dimension of 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, 40mm, 41mm, 42mm, 43mm, 44mm, 45mm, 46mm, 47mm, 48mm, or 49 mm.

In some embodiments of the present invention, the knob gate molding area 3023 is located at the center of one end of the knob equal wall thickness area away from the knob body connection plate 301 in the circumferential direction of the knob body side plate 302. Thus, in the knob mold 3, in the circumferential direction of the knob body side plate cavity 312, the knob gate is located at the center of the knob equal thickness region 3121, so that it is more convenient for the material to preferentially fill the entire knob equal thickness region 3121.

In some embodiments of the present invention, the wall thickness of the end of the knob body connection plate 301 adjacent to the knob variable-wall-thickness region 3022 ranges from 2.2mm to 3.2 mm. Specifically, in the knob mold 3, the thickness of the knob-variable thickness region 3122 at the end adjacent to the knob body connecting plate cavity 311 ranges from 2.2mm to 3.2 mm. From this, be favorable to guaranteeing the flow velocity of material, guarantee that the whole knob body curb plate die cavity 312 is filled to the material, be favorable to guaranteeing the structural strength of knob body 30. For example, the wall thickness of the end of the knob variable wall thickness region 3022 adjacent to the knob body attachment plate 301 is 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, or 3.1 mm.

In some embodiments of the present invention, the wall thickness of the end of the knob variable-wall-thickness region 3022 away from the knob body connecting plate 301 ranges from 1.5mm to 2.2 mm. Specifically, in the knob mold 3, the thickness of the knob-variable thickness region 3122 at the end away from the knob body connecting plate cavity 311 ranges from 1.5mm to 2.2 mm. From this, be favorable to guaranteeing the flow velocity of material, guarantee that the whole knob body curb plate die cavity 312 is filled to the material, be favorable to guaranteeing the structural strength of knob body 30. For example, the wall thickness of the end of the knob variable wall thickness region 3022 away from the knob body connection plate 301 is 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, or 2.1 mm.

In some embodiments of the present invention, the knob body connection plate 301 has no appearance surface, and the wall thickness of the end of the knob body connection plate 301 connected to the knob body side plate 302 is smaller than the wall thickness of the end of the knob variable wall thickness region 3022 adjacent to the knob body connection plate 301. Specifically, in the knob mold 3, the thickness of the end of the knob body connection plate cavity 311 connected to the knob body side plate cavity 312 is smaller than the thickness of the end of the knob variable thickness region 3122 adjacent to the knob body connection plate cavity 311. From this, when the material flows out from the knob runner of knob mould 3, be favorable to more materials can direct flow to knob body curb plate die cavity 312, further guarantee the stable flow of material, reduce the hindrance that the material flows to reduce the flow line of knob curb plate department.

In some embodiments of the present invention, the knob body connecting plate 301 has no appearance surface, and the wall thickness of the knob body connecting plate 301 is smaller than the minimum wall thickness of the knob variable wall thickness region 3022. Specifically, in the knob mold 3, the wall thickness of the knob body connecting plate cavity 311 is smaller than the minimum thickness of the knob variable thickness region 3122. From this, when the material flows out from the knob runner of knob mould 3, be favorable to more materials can direct flow to knob body curb plate die cavity 312, further guarantee the stable flow of material, reduce the hindrance that the material flows to reduce the flow line of knob curb plate department.

In some specific examples, the knob body connection plate 301 is an equal wall thickness connection plate. This can simplify the structure of the knob mold 3.

In some specific examples, the wall thickness of the knob body connecting plate 301 ranges from 1.5mm to 2.0 mm. Specifically, in the knob mold 3, the thickness of the knob body connecting plate cavity 311 ranges from 1.5mm to 2.0 mm. From this, when the material flows out from the knob runner of knob mould 3, be favorable to more materials can direct flow to knob body curb plate die cavity 312, further guarantee the stable flow of material, reduce the hindrance that the material flows to reduce the flow line of knob curb plate department.

In some embodiments of the present invention, the knob body 30 includes: knob body strengthening rib 304, knob body strengthening rib 304 establishes on the internal perisporium of knob body curb plate 302 and extends into the slice on the axial of knob body curb plate 302, and knob body strengthening rib 304 is located knob variable wall thickness area 3022. Particularly, in knob mould 3, the knob die cavity includes knob body strengthening rib die cavity, and knob body strengthening rib die cavity is located the interior week of knob body curb plate die cavity 312 and is linked together with knob body curb plate die cavity 312, and knob body strengthening rib die cavity extends into the slice in the axial of knob body curb plate die cavity 312, and knob body strengthening rib die cavity is located knob thickness-variable region 3122.

When the knob body side plate cavity 312 is communicated with the knob body reinforcing rib cavity, when a material flows through the communicated position of the knob body reinforcing rib cavity and the knob body side plate cavity 312, the material flow direction is divided into two parts, one part continuously flows in the knob body side plate cavity 312 along the original flow direction, the other part flows to the knob body reinforcing rib 304 cavity, the material flowing into the knob body reinforcing rib cavity flows back to the knob body side plate cavity 312 from the knob body reinforcing rib cavity, for the condition that the knob body reinforcing rib cavity extends into a long strip shape along the circumferential direction of the knob body side plate 302, the flow direction of the material is approximately the same as the length direction of the knob body reinforcing rib cavity, the material enters the knob body reinforcing rib cavity and flows back to the knob body side plate cavity 312 from the knob body reinforcing rib cavity under the condition that the knob body reinforcing rib cavity is not filled with the knob body reinforcing, and the material of the rest positions of the knob body side plate cavity 312 may enter the knob body reinforcing rib cavity again and then flow back again, in other words, when the material flows along the length direction of the knob body reinforcing rib cavity, the condition that the material flows back to the knob body side plate cavity 312 from the knob body reinforcing rib cavity for many times exists, so that the solidified layer at the position where the knob body reinforcing rib cavity is communicated with the knob body side plate cavity 312 is seriously damaged, and then the flow lines are serious at the position of the knob body side plate 302 corresponding to the knob body reinforcing rib 304. And in this application, it is the slice to extend in the axial of knob body curb plate die cavity 312 through making knob body strengthening rib die cavity, knob body strengthening rib die cavity is located knob variable thickness region 3122, because the material flows the back from the knob runner, the material flows along the circumference of knob body curb plate die cavity 312, flow along the thickness direction of knob body strengthening rib die cavity promptly, thereby help reducing the number of times that the material flows knob body curb plate die cavity 312 from knob body strengthening rib die cavity backward flow, the yield is improved, the cost is reduced, user's user demand is satisfied.

In some embodiments of the invention, the knob comprises: and the knob cover plate is arranged on the surface of one side of the knob body connecting plate 301, which is far away from the knob body side plate 302. The surface of the knob cover plate facing away from the knob body 30 is an appearance surface. From this, through setting up the knob apron, be favorable to improving the outward appearance aesthetic property of knob.

In some embodiments of the present invention, the knob is an integral injection molding piece, that is, the knob mold core 31 has a knob cover plate cavity, and the knob cover plate cavity is disposed on one side of the knob body connecting plate cavity far away from the knob body side plate cavity and is communicated with the knob cavity. Therefore, the knob cover plate and the knob body 30 are integrally formed through an injection molding process, and the two materials are the same, that is, the knob can be processed through the knob mold 3. From this, the structure of an organic whole piece not only can guarantee structure, the stable performance of knob body 30 and knob apron to convenient shaping, manufacturing are simple, have saved unnecessary assembly part and connection process moreover, have improved the assembly efficiency of knob body 30 and knob apron greatly, guarantee the reliability of knob body 30 and knob apron connection, moreover, the bulk strength and the stability of the structure of an organic whole formation are higher, and it is more convenient to assemble, and the life-span is longer.

Of course, the present invention is not limited thereto, and in other embodiments, the knob body 30 and the knob cover plate may be separately processed and then assembled. Particularly, the knob body connecting plate 301 is provided with a clamping hole, and the knob cover plate is provided with a clamping hook matched with the clamping hole, so that the knob cover plate is convenient to disassemble and assemble.

The clothes treatment equipment comprises the knob.

According to the clothes treatment device of the embodiment of the invention, by arranging the knob, the knob gate forming area 3023 is arranged in the knob equal wall thickness area 3021, and the wall thickness of one end of the knob variable wall thickness area 3022 far away from the connecting plate is the smallest. Like this, can reduce the flow line of knob body curb plate 302 at least to a certain extent, prevent at least to a certain extent that the flow line from appearing at the outward appearance face of knob body curb plate 302, improve the qualification rate of knob body curb plate 302 at least to a certain extent, reduce cost satisfies user's user demand.

The knob cover 20 will be described.

The knob includes knob apron 20, and knob apron 20 manufacturing process is mostly moulding plastics + spraying process, and knob apron 20 after the spraying possesses gorgeous metal appearance effect, but spraying process exists the pollution big, with high costs, the qualification rate is low, can not retrieve after scrapping the shortcoming such as, seriously influences environment and production personnel's health, does not conform to the concept of green manufacturing. In order to overcome the defects of the spraying process, the spraying-free thermoplastic engineering material is produced at the right moment, and the spraying-free injection molding can give the metal appearance effect to the product, so that the spraying process is cancelled, the aim of reducing the production cost is fulfilled, and meanwhile, the emission of pollutants in the spraying process is avoided.

Regardless of whether the knob cover plate 20 is injection molded by using a spraying-free material or the knob cover plate 20 is manufactured by using an injection molding and spraying process, for a material with poor fluidity, especially a spraying-free material containing metal particles, due to the existence of substances such as the metal particles in the spraying-free material, the metal particles are unevenly distributed when the material is obstructed in the flowing process in the injection molding process, so that light scattering occurs under the irradiation of light when a product is injection molded, flow marks are formed on the product visually, the flow mark defect occurs on the product, and when the flow marks occur on the appearance surface of the product, the product has low qualification rate and cannot meet the use requirements of users. In the following description, a spray-free material containing metal particles is taken as an example, that is, the knob cover plate 20 may be a spray-free member including a resin matrix and metal particles distributed in the resin matrix. Optionally, the metal particles are copper, aluminum or silver.

The knob cover plate 20, the knob, the laundry treating apparatus, and the knob cover plate mold 2 for molding the knob cover plate 20 according to the embodiment of the present invention will be described below with reference to the accompanying drawings. From this, knob apron 20 is the integrative piece of moulding plastics, and from this, the structure of an organic whole piece not only can guarantee knob apron 20 structure, stability of performance to convenient shaping, manufacturing are simple, have saved unnecessary assembly part and connection process moreover, guarantee the reliability that knob apron 20 connects, and moreover, the bulk strength and the stability of the structure of an organic whole formation are higher, and it is more convenient to assemble, and the life-span is longer. Optionally, the laundry treating apparatus is a washing machine, a dryer or a washer-dryer.

As shown in fig. 16, 22 and 23, the knob cover 20 of the laundry treating apparatus according to the embodiment of the present invention includes a cover body 203 and a cover coupling rib 204.

One surface of the cover body 203 in the thickness direction is an appearance surface, and the other surface of the cover body 203 in the thickness direction is a non-appearance surface. The other side surface in the thickness direction of the cover plate body 203 is a non-appearance surface, which means that when the knob cover plate 20 is installed in the knob, the other side surface in the thickness direction of the cover plate body 203 is not exposed; the one side surface in the thickness direction of the cover body 203 is an external appearance surface, which means that when the knob cover 20 is mounted in the knob, the one side surface in the thickness direction of the cover body 203 is exposed.

As shown in fig. 16, a cover gate molding area 2031 adapted to correspond to a cover gate of the knob cover mold 2 is provided on the outer peripheral wall of the cover body 203 and/or at the center of the other side surface in the thickness direction of the cover body 203. That is, the outer peripheral wall of the cap body 203 may be provided with a cap gate forming region 2031 adapted to correspond to the cap gate of the knob cap mold 2, the center of the other side surface in the thickness direction of the cap body 203 may be provided with a cap gate forming region 2031 adapted to correspond to the cap gate of the knob cap mold 2, and the outer peripheral wall of the cap body 203 and the center of the other side surface in the thickness direction of the cap body 203 may be provided with cap gate forming regions 2031 adapted to correspond to the cap gate of the knob cap mold 2.

Specifically, after the knob cover plate blank is injection-molded by the knob cover plate mold 2 and is demolded from the knob cover plate mold 2, a part of the material at the cover plate gate of the knob cover plate mold 2 is left on the knob cover plate blank and forms a cover plate gate forming portion, and the cover plate gate forming area 2031 of the knob cover plate 20 is the area where the cover plate gate forming portion is located. It can be understood that the knob cover plate blank may be reprocessed to cut or partially cut the cover plate gate forming portion, and certainly, the cover plate gate forming portion of the knob cover plate 20 blank may not be processed, that is, the cover plate gate forming portion is retained on the knob cover plate 20, which is not specifically limited to this, and may be set according to actual needs of production.

Also, it is understood that the cover gate located at the center of the other side surface in the thickness direction of the cover body 203 is one. One or more cover plate gates may be provided at the outer peripheral wall of the cover plate body 203, and the plurality of cover plate gates are provided at intervals in the circumferential direction of the cover plate body 203.

The cover plate connecting rib 204 is provided on the other side surface in the thickness direction of the cover plate body 203, and thus, by providing the cover plate connecting rib 204, it is advantageous to improve the structural strength of the knob cover plate 20.

Specifically, as shown in fig. 16 to 17, in a plane parallel to the cover plate body 203, a connection line between a projection of the center of the cover plate gate molding area 2031 and a projection of the center of the cover plate connecting rib 204 is L1, the width direction of the cover plate connecting rib 204 is L2, and the included angle between L1 and L2 is in a range of β 80 ° to 100 °. For example, β is 81 °, 82 °, 83 °, 84 °, 85 °, 86 °, 87 °, 88 °, 89 °, 90 °, 91 °, 92 °, 93 °, 94 °, 95 °, 96 °, 97 °, 98 °, or 99 °.

For the sake of convenience in explaining the reason for the reduction of the flow lines of the cover body 203, the knob cover mold 2 according to the embodiment of the present invention is described below, and the reason for the reduction of the flow lines of the appearance surface of the cover body 203 is explained in principle in conjunction with the structure of the knob cover mold 2.

As shown in fig. 4 to 5, the knob cover mold 2 for molding the knob cover 20 of the laundry treating apparatus according to the embodiment of the present invention includes: the knob covers the core 21.

The knob cover plate mold insert 21 has a knob cover plate cavity, the knob cover plate cavity includes a cover plate body cavity 213 and a plurality of cover plate connecting rib cavities 214, a side wall surface of the cover plate body cavity 213 in the thickness direction is used for forming an appearance surface of the cover plate body 203, and the cover plate connecting rib cavities 214 are located at another side wall surface of the cover plate body cavity 213 in the thickness direction and are communicated with the cover plate body cavity 213. The knob cover plate mold insert 21 has a cover plate gate located at the peripheral wall of the cover plate body cavity 213, and/or the knob cover plate mold insert 21 has a cover plate gate located at the center of the other side wall surface in the thickness direction of the cover plate body cavity 213.

In a plane parallel to the cover plate body cavity 213, a connecting line of a projection of the center of the cover plate gate and a projection of the center of the cover plate connecting rib cavity 214 is L1 ', the width direction of the cover plate connecting rib cavity 214 is L2', and an included angle between L1 'and L2' ranges from 80 degrees to 100 degrees. For example, the included angle of L1 'and L2' is 81 °, 82 °, 83 °, 84 °, 85 °, 86 °, 87 °, 88 °, 89, ° 90 °, 91 °, 92 °, 93 °, 94 °, 95 °, 96 °, 97 °, 98 °, or 99 °.

Specifically, during injection molding, in the material flowing process, hotter melt material enters the knob cover plate mold 2 through the cover plate gate, and contacts with a colder cavity wall surface in the flowing process, so that the material can be rapidly frozen on the surface of the cavity wall surface of the knob cover plate to form a thin solidified layer. The flow direction of the metal particles in the solidified layer determines the quality of the appearance of the spray-free product, and stable flow can form consistent metal particle orientation to obtain better appearance. However, when the cover plate body cavity 213 is communicated with the cover plate connecting rib cavity 214, when a material flows through the communicating position between the cover plate connecting rib cavity 214 and the cover plate body cavity 213, the material flow direction is divided into two parts, one part of the material continuously flows in the cover plate body cavity 213 along the original flow direction, the other part of the material flows to the cover plate connecting rib cavity 214, the material flowing into the cover plate connecting rib cavity 214 flows back into the cover plate body cavity 213 from the cover plate connecting rib cavity 214, an unstable flow field is formed near the root of the cover plate connecting rib cavity 214 under the continuous flow of the subsequent melt material, and under the continuous action of the fluid pressure, the solidified layer of the appearance surface at the corresponding position of the cover plate body cavity 213 to the cover plate connecting rib cavity 214 is damaged, so that the orientation of the metal particles in the solidified layer in the area is disordered, and the solidified layer is a flow mark when the.

In particular, in a manner that the material flow direction is substantially the same as the width direction of the cover plate bead cavities 214, since the width of the cover web cavity 214 is greater than the thickness of the cover web cavity 214, in the width direction of the cover plate connecting rib cavity 214, the material enters the cover plate connecting rib cavity 214 and flows back to the cover plate body cavity 213 from the cover plate connecting rib 204 under the condition that the cover plate connecting rib cavity 214 is not filled, while the material in the rest position of the cover plate body cavity 213 may enter the cover plate connecting rib cavity 214 again and then flow back again, in other words, when the material flows along the width direction of the cover plate connecting rib cavity 214, there is a case where the material flows back from the cover plate bead cavity 214 to the cover plate body cavity 213 many times, the solidified layer at the communication position of the cover plate connecting rib cavity 214 and the cover plate body cavity 203 is seriously damaged, and then the flow lines at the position of the cover plate body 203 corresponding to the cover plate connecting rib 204 are serious.

In the present application, because a connection line between the projection of the center of the cover plate gate and the projection of the center of the cover plate connecting rib cavity 214 in a plane parallel to the cover plate body cavity 213 is L1 ', the width direction of the cover plate connecting rib cavity 214 is L2', and the included angle between L1 'and L2' ranges from 80 ° to 100 °, the material flows in a diverging manner after flowing out from the cover plate gate, which is beneficial to the material flowing along the thickness direction of the cover plate connecting rib cavity 214, thereby reducing the number of times that the material flows back from the cover plate connecting rib cavity 214 to the cover plate body cavity 213, reducing the flow lines on the cover plate body 203 at least to a certain extent, improving the yield of the cover plate body 203 at least to a certain extent, reducing the cost, and meeting the use requirements of users.

The knob cover mold 2 for molding the knob cover 20 of the laundry treating apparatus according to the embodiment of the present invention, because the connecting line of the projection of the center of the cover plate gate and the projection of the center of the cover plate connecting rib cavity 214 in the plane parallel to the cover plate body cavity 213 is L1 ', the width direction of the cover plate connecting rib cavity 214 is L2', the included angle between L1 'and L2' ranges from 80 degrees to 100 degrees, since the material flows in a diverging manner after flowing out of the cover plate gate, the material is facilitated to flow along the thickness direction of the cover plate connecting rib cavities 214, thereby helping to reduce the number of times that the material flows back from the cover plate connecting rib cavity 214 to the cover plate body cavity 213, thereby be favorable to reducing the flow line on the apron body 203 to a certain extent at least, improve the yield of apron body 203 to a certain extent at least, reduce cost satisfies user's user demand.

According to the knob cover plate 20 of the clothes treatment equipment of the embodiment of the invention, in the plane parallel to the cover plate body 203, the connecting line of the projection of the center of the cover plate sprue forming area 2031 and the projection of the center of the cover plate connecting rib 204 is L1, the width direction of the cover plate connecting rib 204 is L2, and the range of the included angle between L1 and L2 is 80-100 degrees, which is beneficial to reducing the flow lines on the cover plate body 203 at least to a certain extent, improving the yield of the cover plate body 203 at least to a certain extent, reducing the cost and meeting the use requirements of users.

In some embodiments of the present invention, as shown in fig. 3, the cover plate connection rib 204 comprises: the cover plate connecting rib body 2041 and the cover plate connecting portion 2042, the cover plate connecting portion 2042 is connected between the cover plate connecting rib body 2041 and the cover plate body 203. Specifically, in the knob cover plate mold 2, as shown in fig. 5 to 6, the cover plate connecting rib cavity 214 includes a cover plate connecting rib body cavity 2141 and a cover plate connecting portion cavity 2142, and the cover plate connecting portion cavity 2142 is communicated between the cover plate connecting rib body cavity 2141 and the cover plate body cavity 213. Thus, the structure is simple.

Alternatively, as shown in fig. 3, the thickness of the cover connecting portion 2042 is smaller than that of the end of the cover connecting rib body 2041 connected to the cover connecting portion 2042. Specifically, in the knob cover plate mold 2, as shown in fig. 5, the thickness of the cover plate connecting portion cavity 2142 is smaller than the thickness of the end of the cover plate connecting rib body cavity 2141 communicating with the cover plate connecting portion cavity 2142, when in injection molding, since the wall surface of the cover plate connecting rib cavity 214 does not have a cover plate gate, when a material flows in the cavity, the material first flows through the cover plate body cavity 213 and flows to the cover plate connecting rib cavity 214 through the cover plate body cavity 213, and by making the thickness of the cover plate connecting portion cavity 2142 smaller than the thickness of the cover plate connecting rib body cavity 2141, the flow area and the number of times of backflow of the material from the cover plate connecting rib cavity 214 to the cover plate body cavity 213 can be reduced, an unstable flow field can be further prevented from being formed at the communicating position between the cover plate connecting rib cavity 214 and the cover plate body cavity 213, and material intersection caused by the material of the cover plate connecting rib body cavity 2141 flowing back to the body cavity, thereby avoiding the flow pattern problem generated at the connection part of the cover body 203 and the cover connection rib 204.

Optionally, the thickness of the cover connecting portion 2042 is smaller than the thickness of the cover connecting rib body 2041. From this, can reduce the flow area and the backward flow number of times that the material flows back to apron body cavity 213 from apron splice bar cavity 214, can further avoid forming unstable flow field in the intercommunication department of apron splice bar cavity 214 and apron body cavity 213, further avoid the material of apron splice bar body cavity 2141 to flow back to apron body cavity 213 and the material that leads to intersects through apron splice bar cavity 2142, thereby avoid the flow line problem that produces in the department of connecting with apron splice bar 204 of apron body 203.

Alternatively, a part of the surface of the cover connecting portion 2042 facing the cover body 203 is recessed toward a direction away from the cover body 203 to form a cover penetration hole that penetrates the cover connecting portion 2042 in the thickness direction of the cover connecting portion 2042. Specifically, when corresponding to the knob cover plate mold 2, the cover plate connecting portion cavity 2142 is provided with a cover plate pillar structure for molding the cover plate through hole, and the cover plate pillar structure extends in the entire thickness direction of the cover plate connecting portion cavity 2142. Like this, because apron splice bar die cavity 214 does not have the apron runner, when the material flows in the die cavity of knob apron mould 2, can at first flow through apron body die cavity 213, flow to apron splice bar die cavity 214 behind apron body die cavity 213, and through setting up the apron stand structure, the circulation area that the material flows back to apron body die cavity 213 from apron splice bar die cavity 214 can be reduced to the lid stand structure, can further avoid forming unstable flow field at the intercommunication department of apron splice bar die cavity 214 with apron body die cavity 213, further avoid the material intersection that the material of apron splice bar body die cavity 2141 flows back to apron body die cavity 213 and leads to through apron splice bar die cavity 2142, thereby avoid the flow line problem that produces at the department of apron body 203 that links to each other with apron splice bar 204.

In some embodiments of the present invention, the thickness of the cover plate connecting portion 2042 ranges from 0.15mm to 0.6mm, that is, the thickness of the cover plate connecting portion cavity 2142 ranges from 0.15mm to 0.6 mm. For example, the thickness is 0.16mm, 0.17mm, 0.18mm, 0.19mm, 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, 0.3mm, 0.31mm, 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.37mm, 0.38mm, 0.39mm, 0.4mm, 0.41mm, 0.42mm, 0.43mm, 0.44mm, 0.45mm, 0.46mm, 0.47mm, 0.48mm, 0.49mm, 0.5mm, 0.51mm, 0.52mm, 0.53mm, 0.54mm, 0.55mm, 0.56mm, 0.57mm, 0.58mm, or 0.59 mm. From this, not only can guarantee the structural strength of apron connecting portion 2042, but also can avoid to a certain extent forming unstable flow field at the intercommunication department of apron splice bar die cavity 214 and apron body die cavity 213 because of setting up apron connecting portion die cavity 2142 thickness too thickly and leading to, further avoid the material of apron splice bar body die cavity 2141 to flow back to apron body die cavity 213 and the material that leads to intersects through apron connecting portion die cavity 2142, thereby avoid the flow line problem that produces at the department of apron body 203 that links to each other with apron splice bar 204.

In some embodiments of the present invention, the thickness of the cover plate body 203 ranges from 1.5mm to 3.5mm, i.e., the thickness of the cover plate body cavity 213 ranges from 1.5mm to 3.5 mm. For example, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm or 3.5 mm. Thereby, the structural strength of the cover body 203 can be ensured.

In some embodiments of the present invention, under the condition that the thickness of the cover plate body 203 is not less than 2.5mm, the thickness of the cover plate connecting portion 2042 is 0.3mm to 0.6mm, that is, under the condition that the thickness of the cover plate body cavity 213 is not less than 2.5mm, the thickness of the cover plate connecting portion cavity 2142 is 0.3mm to 0.6 mm; under the condition that the thickness of the cover plate body 203 is smaller than 2.5mm, the thickness of the cover plate connecting portion 2042 ranges from 0.15mm to 0.3mm, that is, under the condition that the thickness of the cover plate body cavity 213 is smaller than 2.5mm, the thickness of the cover plate connecting portion cavity 2142 ranges from 0.15mm to 0.3 mm. From this, thickness through lapping body 203 and the thickness of lapping connecting portion 2042 combine together, thereby can avoid to a certain extent forming unstable flow field because of lapping connecting portion die cavity 2142 thickness sets up the too thick intercommunication department that leads to at lapping splice bar die cavity 214 and lapping body die cavity 213, further avoid lapping splice bar body die cavity 2141's material to flow back to lapping body die cavity 213 and the material that leads to crosses through lapping connecting portion die cavity 2142, thereby avoid the flow line problem that produces in lapping body 203's the department that links to each other with lapping splice bar 204.

In some embodiments of the present invention, the thickness of the cover plate connecting portion 2042 is less than the thickness of the cover plate body 203. In the knob cover mold 2, the cover connection part cavity 2142 has a thickness smaller than that of the cover body cavity 213. This facilitates preferential filling of the cover plate body cavity 213 with material, thereby reducing flow lines in the cover plate body 203.

In some embodiments of the present invention, the cover plate connection rib 204 is a plurality spaced apart in the circumferential direction of the cover plate body. For example, three are shown in fig. 16.

In some embodiments of the present invention, the cover plate connection rib 204 is a plurality that is evenly spaced in the circumferential direction of the cover plate body. Alternatively, in a plane parallel to the cover body 203, the projections of the plurality of cover connection ribs 204 are located on a circle centered on the center of the other side surface of the cover body 203. Thus, the structure is simple.

In some embodiments of the present invention, the cover plate body 203 is provided with a uniform thickness. Therefore, the structure is simple, and the processing and the manufacturing of the knob cover plate die are convenient.

A knob of a laundry treating apparatus according to an embodiment of the present invention includes: a knob body and the knob cover plate 20 described above. Wherein, the knob body is provided with a clamping hole, and the cover plate connecting rib 204 is constructed as a clamping hook clamped with the clamping hole.

According to the knob of the clothes treating apparatus of the embodiment of the invention, by arranging the knob cover plate 20 of the clothes treating apparatus, in a plane parallel to the cover plate body 203, a connecting line of a projection of the center of the cover plate sprue forming area 2031 and a projection of the center of the cover plate connecting rib 204 is L1, the width direction of the cover plate connecting rib 204 is L2, and the range of an included angle between L1 and L2 is 80-100 degrees, which is beneficial to reducing flow marks on the cover plate body 203 at least to a certain extent, improving the yield of the cover plate body 203 at least to a certain extent, reducing the cost and meeting the use requirements of users.

In some embodiments of the present invention, the knob body is a spray-free piece. The spray-free piece comprises a resin matrix and metal particles distributed in the resin matrix.

The knob body is the integrative formed part of moulding plastics, from this, the structure, the stable performance of knob body not only can be guaranteed to the structure of an organic whole piece to convenient shaping, manufacturing are simple, have saved unnecessary assembly part and connection process moreover, guarantee the reliability of knob body coupling, and moreover, the bulk strength and the stability of the structure of an organic whole formation are higher, and it is more convenient to assemble, and the life-span is longer.

The clothes treatment equipment comprises the knob.

According to the clothes treatment equipment provided by the embodiment of the invention, by arranging the knob, and by arranging the knob cover plate 20 of the clothes treatment equipment, in a plane parallel to the cover plate body 203, a connecting line of a projection of the center of the cover plate gate forming area 2031 and a projection of the center of the cover plate connecting rib 204 is L1, the width direction of the cover plate connecting rib 204 is L2, and the range of an included angle between L1 and L2 is 80-100 degrees, so that the flow marks on the cover plate body 203 can be reduced at least to a certain extent, the yield of the cover plate body 203 can be improved at least to a certain extent, the cost can be reduced, and the use requirements of users can be met.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

Other constitutions, such as a motor and a control system, and operations of the laundry treating apparatus according to an embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A knob of a laundry treating apparatus, comprising:

the knob body, the knob body is injection moulding spare as an organic whole, the knob body includes: knob body curb plate, knob body curb plate has along its axial one end and the other end, the axial other end terminal surface of knob body curb plate is equipped with at least one knob runner molding district that is suitable for to correspond with the knob runner of knob mould, the periphery wall of knob body curb plate is the outward appearance face, knob body curb plate has wall thickness region such as knob, wall thickness region such as knob is in extend in the whole axial of knob body curb plate, wall thickness region such as knob is equipped with knob runner molding district, knob body curb plate other regions such as the knob outside the wall thickness region become the wall thickness region for the knob, the wall thickness in wall thickness region such as knob is not less than the regional maximum wall thickness of wall thickness is become to the knob.

2. The knob of a laundry treating apparatus according to claim 1, wherein the knob body includes a knob body connecting plate, the knob body side plate extends in a ring shape in a circumferential direction of the knob body connecting plate, an axial end of the knob body side plate is connected to an outer circumferential wall of the knob body connecting plate, and a wall thickness of an end of the knob variable wall thickness region remote from the knob body connecting plate is smallest.

3. The knob of a laundry treating apparatus according to claim 2, wherein a wall thickness of the variable wall thickness region of the knob is gradually reduced in a direction away from the knob body connecting plate.

4. The knob of a laundry treating apparatus according to claim 3, wherein a wall thickness of an end of the knob body connection plate adjacent to the variable wall thickness region of the knob ranges from 2.2mm to 3.2 mm.

5. The knob of a clothes treating apparatus according to claim 3, wherein the wall thickness of the end of the variable wall thickness region of the knob away from the connecting plate of the knob body has a value in a range of 1.5mm to 2.2 mm.

6. The knob of a laundry treating apparatus according to claim 2, wherein the knob body connection plate has no appearance surface, and a wall thickness of an end of the knob body connection plate connected to the knob body side plate is smaller than a wall thickness of an end of the knob variable wall thickness region adjacent to the knob body connection plate.

7. The knob of a clothes treating apparatus according to claim 2, wherein the wall thickness of the knob body connection plate ranges from 1.5mm to 2.0 mm.

8. The knob of a laundry treating apparatus according to claim 1, wherein the knob body includes: the knob body reinforcing rib is arranged on the inner peripheral wall of the knob body side plate and extends into a sheet shape in the axial direction of the knob body, and the knob body reinforcing rib is located in the wall thickness variable region of the knob.

9. The knob of a laundry treating apparatus according to claim 2, comprising: the knob cover plate is arranged on the surface of one side, far away from the knob body side plate, of the knob body connecting plate.

10. The knob of a clothes treating apparatus according to claim 9, wherein the knob body connecting plate is provided with a locking hole, and the knob cover plate is provided with a hook engaged with the locking hole; or, the knob is an integral injection molding piece.

11. The knob of a laundry treating apparatus according to any one of claims 1 to 10, wherein the knob body is a spray-free member including a resin matrix and metal particles distributed in the resin matrix.

12. A laundry treating apparatus, characterized in that it comprises a knob according to any one of claims 1-11.

13. A knob mold, comprising:

the knob body side plate knob cavity is provided with a knob sprue which is located on the wall surface of the other axial end of the knob body side plate knob cavity, the knob body side plate knob cavity is provided with a knob equal-thickness area, the knob sprue is located in the knob equal-thickness area, the knob equal-thickness area extends in the whole axial direction of the knob body side plate cavity, other areas outside the knob equal-thickness area of the knob body side plate knob cavity are knob variable-thickness areas, and the thickness of the knob equal-thickness area is not smaller than the maximum thickness of the knob variable-thickness area.

14. The knob mold according to claim 13, wherein the knob cavity comprises a knob body connecting plate cavity, the knob body side plate knob cavity extends in a ring shape along a circumferential direction of the knob body connecting plate cavity, an axial end of the knob body side plate knob cavity is communicated with the knob body connecting plate cavity in the entire circumferential direction of the knob body connecting plate cavity, and a thickness of an end of the knob variable thickness region, which is far away from the knob body connecting plate cavity, is the smallest.

15. The knob mold according to claim 14, wherein the thickness of the knob varied thickness region is gradually reduced in a direction away from the knob body connecting plate cavity.

16. The knob mold according to claim 15, wherein the thickness of the variable thickness region of the knob at the end adjacent to the cavity of the connecting plate of the knob body ranges from 2.2mm to 3.2 mm.

17. The knob mold according to claim 15, wherein the wall thickness of the knob thickness-variable region at the end away from the knob body connecting plate cavity ranges from 1.5mm to 2.2 mm.

18. The knob mold according to claim 14, wherein the thickness of the end of the knob body coupling plate cavity in communication with the knob body side plate cavity is less than the thickness of the end of the knob variable thickness region adjacent to the knob body coupling plate cavity.

19. The knob mold according to claim 14, wherein the thickness of the cavity of the connecting plate of the knob body ranges from 1.5mm to 2.0 mm.

20. The knob mold according to claim 13, wherein the knob cavities include a knob body rib cavity, the knob body rib cavity is located at an inner periphery of the knob body side plate cavity and communicates with the knob body side plate cavity, the knob body rib cavity extends in a sheet shape in an axial direction of the knob body side plate cavity, and the knob body rib cavity is located in the knob variable thickness region.

21. The knob mold according to claim 14, wherein the knob mold core has a knob cover cavity, and the knob cover cavity is disposed on a side of the knob body connecting plate cavity away from the knob body side plate cavity and is communicated with the knob cavity.