CN216609888U - Appearance part, household appliance and mold - Google Patents

Abstract

The utility model provides an appearance part, a household appliance and a mold. Wherein, the outward appearance part is for exempting from the spraying injection molding, and the outward appearance part includes the outward appearance body, and the outward appearance body has outward appearance face and non-outward appearance face, and the outward appearance part still includes: a convex part arranged on the non-appearance surface and having a root thickness h₁And the thickness h of the main material of the appearance piece body satisfies the following conditions: h is₁Less than or equal to 0.6 h. The utility model effectively solves the problem that the spraying-free injection molding part in the prior art is easy to generate appearance defects.

Description

Appearance part, household appliance and mold

Technical Field

The utility model relates to the field of household appliances, in particular to an appearance part, a household appliance and a mold.

Background

At present, household appliances usually adopt a spraying process to carry out surface treatment on injection molding parts so as to realize the improvement of various colors and appearance textures and cover the appearance defects of parts, but have the problems of high cost and environmental pollution. Therefore, the spraying-free technology can be adopted to replace and make up the problem of the spraying process, the injection molding piece of the spraying-free material has unique light and shadow effect and metallic luster after molding, and the appearance effect which is comparable to or superior to the spraying effect can be achieved without secondary treatment. The technology has the advantages of excellent functions, low cost, environmental protection and the like.

However, the spray-free material is easy to have appearance defects such as flow marks, welding marks, gate marks and the like in the injection molding process, and the generated positions or degrees are difficult to predict and have poor consistency.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an appearance part, a household appliance and a mold, and aims to solve the problem that a spraying-free injection molding part in the prior art is easy to generate appearance defects.

In order to achieve the above object, according to one aspect of the present invention, there is provided an exterior part, the exterior part being a spray-free injection molded part, the exterior part including an exterior part body having an exterior surface and a non-exterior surface, the exterior part further including: a convex part arranged on the non-appearance surface and having a root thickness h₁And the thickness h of the main material of the appearance piece body satisfies the following conditions: h is₁≤0.6h。

Furthermore, the convex part is a rib, and the extending direction S of the rib₁With the direction of flow S of the injection-moulding melt₂The first preset included angle a is larger than 15 degrees.

Furthermore, the convex part is a buckle which comprises a plurality of connecting ribs, and the plurality of connecting ribs surround to form a clamping part; wherein the direction of extension S of the connecting ribs₃With the direction of flow S of the injection-moulding melt₂And the second preset included angle is larger than 15 degrees.

Further, the appearance piece body is provided with a buffer concave part which is arranged corresponding to the gate of the mold.

Further, in the flow direction of the injection molding melt, the distance between the convex portion and the gate forming region is larger than the distance between the convex portion and the filling end of the exterior piece body, and the convex portion is located between the filling end and the gate forming region.

Further, the distance between the projection and the gate forming region in the flow direction of the injection-molded melt is greater than or equal to 20 mm.

Further, the appearance part further includes: the reinforcing ribs are connected with the convex parts and the appearance part body, the number of the reinforcing ribs is multiple, and the plurality of the reinforcing ribs are arranged at intervals around the circumference of the convex parts; wherein the extending direction S of the reinforcing ribs₄With the direction of flow S of the injection-moulding melt₂And a third preset included angle is formed between the first and second guide rails, and the third preset included angle is larger than 15 degrees.

Further, the convex part is the rib, and the rib is including the first rib section, second rib section and the third rib section of connecting in order, and first rib section sets up with third rib section is relative, and the strengthening rib setting is on first rib section and/or third rib section.

Further, the buffer concave part is provided with a buffer notch and a buffer notch bottom, and the depth of the buffer concave part is gradually reduced along the extending direction from the buffer notch bottom to the buffer notch.

Furthermore, the buffer concave part is positioned in the middle of the appearance piece body, and the number of the convex parts is one; alternatively, the convex portion may be plural, and the plural convex portions may be provided around the buffer concave portion.

Further, the appearance part further includes: at least a set of joint portion, each group's joint portion includes a plurality of joint ribs, and at least a set of joint portion is located the marginal 20 mm's of distance outward appearance body within range.

According to another aspect of the present invention, there is provided a home appliance including an appearance member, an appearance surface of the appearance member forming at least a part of the appearance surface of the home appliance, the appearance member being the above-mentioned appearance member.

According to another aspect of the present invention, there is provided a mold having a cavity for forming the exterior part described above, the mold further having a gate communicating with the cavity.

Furthermore, the mold is also provided with a buffer runner and a melt inlet, the first end of the buffer runner is communicated with the melt inlet, and the buffer runner is communicated with one end of the sprue far away from the cavity, so that the injection molding melt sequentially flows through the melt inlet, the buffer runner and the sprue and then enters the cavity.

By applying the technical scheme of the utility model, the non-appearance surface is positioned at the inner side of the appearance surface, the convex part is arranged on the non-appearance surface, and the root part thickness h of the convex part₁And the thickness h of the main material of the appearance piece body satisfies the following conditions: h is₁Less than or equal to 0.6 h. Wherein, the convex part is a rib or a buckle. Like this, the above-mentioned setting of convex part can promote the structural strength of outward appearance spare body or realize the assembly of outward appearance spare body and other structures, and the root thickness h of convex part₁With the above-mentioned setting of the major ingredient thickness h of outward appearance spare body can avoid producing the shrinkage trace on the outward appearance face and influence the outward appearance aesthetic property of outward appearance part, and then solved and exempted from the problem that the spraying injection molding produced appearance defect easily.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a perspective view showing a perspective structure of an embodiment of an exterior member according to the present invention when assembled with a mold;

FIG. 2 shows a side view of the appearance member of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of the exterior member of FIG. 2; and

fig. 4 shows an enlarged schematic view at Z of the appearance part in fig. 3.

Wherein the figures include the following reference numerals:

10. an appearance piece body; 11. appearance surface; 12. a non-exterior surface; 13. a gate forming area; 30. a gate; 50. a buffer flow channel; 60. a melt inlet; 200. a buffer recess; 400. a convex portion; 401. a first rib section; 402. a second bead segment; 403. a third rib section; 500. reinforcing ribs; 600. the ribs are clamped.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the spraying-free injection molding in the prior art easily generates appearance defects, the application provides an appearance part, a household appliance and a mold.

Example one

As shown in fig. 1 to 4, the appearance part is a spray-free injection molded part, and includes an appearance body 10, the appearance body 10 has an appearance surface 11 and a non-appearance surface 12, and the appearance part further includes a convex portion 400. The convex part 400 is arranged on the non-appearance surface 12, and the root part thickness h of the convex part 400₁The thickness h of the main material of the appearance piece body 10 satisfies the following conditions: h is₁≤0.6h。

By applying the technical scheme of the embodiment, the non-appearance surface 12 is positioned at the inner side of the appearance surface 11, the convex part 400 is arranged on the non-appearance surface 12, and the root part thickness h of the convex part 400₁The thickness h of the main material of the appearance piece body 10 satisfies the following conditions: h is₁Less than or equal to 0.6 h. Wherein, the convex part 400 is a rib. Thus, the above arrangement of the convex portion 400 can improve the structural strength of the exterior body 10 or realize the junction between the exterior body 10 and another exterior bodyThe structure is assembled and the root thickness h of the convex part 400₁With the above-mentioned setting of major ingredient thickness h of outward appearance spare body 10 can avoid producing the shrinkage mark on the outward appearance face 11 and influence the outward appearance aesthetic property of outward appearance part, and then solved the problem that the spraying-free injection molding easily produces the appearance defect.

When the appearance part is injection-molded by using the mold, a cavity of the mold is used for molding the appearance part, a gate 30 (which may also be called a gate) is communicated with the cavity, a material in the gate 30 forms a gate molding part, and a region where the appearance part is connected with the gate molding part is a gate molding region 13.

It should be noted that, when the appearance component is applied to the household appliance, the appearance surface 11 is a component of the appearance of the household appliance, that is, the appearance surface 11 is a surface exposed in the application environment and visible to the user; the non-exterior surface 12 is located inside the household appliance, i.e. the non-exterior surface 12 is a surface hidden from the user inside the household appliance.

The appearance part in this application adopts and exempts from the spraying technique to make, and this appearance part is injection moulding goods and is made by exempting from the spraying material, and the spraying injection molding of exempting from has unique shadow effect and metallic luster after the shaping, does not pass through secondary treatment and can reach the appearance effect that is comparable with or is superior to the spraying, and this technique possesses advantages such as excellent in function, low cost, environmental protection.

Optionally, the direction of extension S of the ribs₁With the direction of flow S of the injection-moulding melt₂The first preset included angle a is larger than 15 degrees. Thus, the arrangement avoids the extending direction of the ribs being parallel to the filling direction of the injection molding melt as much as possible, thereby reducing the characteristic filling speed gradient change of the injection molding melt in the parallel flow direction and further preventing the appearance attractive degree of the appearance part from being influenced by the flow marks on the appearance surface 11.

As shown in fig. 3, the exterior body 10 has a buffer recess 200, and the buffer recess 200 is provided corresponding to the gate 30 of the mold. Specifically, due to the existence of the buffer concave part 200, the liquid entering the injection molding cavity from the injection inlet is buffered by the buffer concave part 200, and the buffered injection liquid flows to the injection molding cavity from the periphery of the injection inlet uniformly. Above-mentioned structure can effectively slow down the direct-flushing and spray, can improve injection moulding's homogeneity to be convenient for effectively guarantee injection moulding's quality, can solve the relatively poor technical problem of injection moulding's among the prior art quality.

In the present embodiment, the buffer recess 200 has a buffer notch and a buffer groove bottom, and the groove depth of the buffer recess 200 is gradually reduced along the extending direction of the buffer groove bottom to the buffer notch. With such a structure, the liquid entering from the injection inlet can be conveniently and sufficiently buffered by the buffer concave part 200, the liquid at the bottom of the buffer groove can be conveniently guided to flow into the position of the buffer notch, and the uniformity of the flow direction of the liquid can be conveniently improved.

Specifically, the buffer recess 200 in the present embodiment is an arc-shaped groove. With such a structure, the structure is reliable, and the liquid in the buffer concave part 200 can be stably and sufficiently buffered.

Alternatively, the distance between the projection 400 and the gate forming region 13 in the flow direction of the injection-molded melt is larger than the distance between the projection 400 and the filling tip of the exterior piece body 10, the projection 400 being located between the filling tip and the gate forming region 13. Thus, the speed and the pressure of the injection molding melt are more stable when the injection molding melt is far away from the gate forming area 13 or the tail end is filled, so that the overturning of the aluminum sheet is reduced, and the flow mark on the appearance surface 11 is further avoided.

Note that the distance between the convex portion 400 and the gate molding region 13 refers to the distance between the convex portion 400 closest to the gate molding region 13 among the plurality of convex portions 400 and the gate molding region 13.

Alternatively, the distance between the projection 400 and the gate forming area 13 in the flow direction of the injection-molded melt is greater than or equal to 20 mm. Thus, the speed and the pressure of the injection molding melt are more stable when the injection molding melt is far away from the gate forming area 13 or the tail end is filled, so that the overturning of the aluminum sheet is reduced, and the flow mark on the appearance surface 11 is further avoided.

As shown in fig. 3 and 4, the exterior part further includes a reinforcing rib 500. The reinforcing ribs 500 are connected to both the projection 400 and the exterior body 10, and the plurality of reinforcing ribs 500 are provided at intervals in the circumferential direction of the projection 400. Thus, the arrangement increases the contact area between the convex part 400 and the appearance body 10, further improves the strength reinforcing effect of the reinforcing rib 500, further improves the structural strength of the appearance part, and prolongs the service life of the appearance part.

Alternatively, the extending direction S of the reinforcing bead 500₄With the direction of flow S of the injection-moulding melt₂And a third preset included angle is formed between the first and second guide rails, and the third preset included angle is larger than 15 degrees. Thus, the arrangement avoids the extending direction of the reinforcing rib 500 from being parallel to the filling direction of the injection molding melt during injection molding as much as possible, thereby reducing the gradient change of the characteristic filling speed of the injection molding melt in the parallel flow direction and further preventing the appearance surface 11 from generating flow marks to influence the appearance attractiveness of the appearance part.

As shown in fig. 4, the rib includes a first rib segment 401, a second rib segment 402, and a third rib segment 403 connected in sequence, the first rib segment 401 is disposed opposite to the third rib segment 403, and the reinforcing bar 500 is disposed on the first rib segment 401 and/or the third rib segment 403. Thus, the rib structure is simpler, the rib structure is easy to process and realize, and the processing cost of the convex part 400 is reduced.

Specifically, the reinforcing rib 500 is arranged on the first rib section 401 and the third rib section 403 to increase the contact area between the rib and the appearance body 10, so that the structural strength of the appearance part is improved, and the service life of the appearance part is prolonged.

In this embodiment, the extending direction of the first rib segment 401 is S₁The direction of extension of the second rib segment 402 and the direction of flow S of the injection molding melt₂Are arranged perpendicular to each other, and the extending direction of the first rib section 401 and the flowing direction S of the injection molding melt₂The included angle formed between the first rib section 401 and the extending direction of the first rib section 401 and the flowing direction S of the injection molding melt₂The included angles between the ribs are the same, so that the arrangement of the ribs is easier, and the processing cost of the appearance part is reduced.

Alternatively, the reinforcing rib 500 is plural, and the plural reinforcing ribs 500 are provided at intervals along the extending direction of the first bead section 401.

Alternatively, the reinforcing bead 500 is plural, and the plural reinforcing beads 500 are provided at intervals along the extending direction of the third bead segment 403.

In this embodiment, four ribs 500 are provided on each rib, two ribs 500 being provided on the first rib section 401 and two further ribs 500 being provided on the third rib section 403.

In the present embodiment, the convex portions 400 are three, one convex portion 400 of the three is disposed near the buffer concave portion 200, and the other two convex portions 400 are disposed near the filling end.

Alternatively, the buffer recess 200 is located at the middle of the outer appearance body 10, and the protrusion 400 is one; alternatively, the convex portion 400 is plural, and the plural convex portions 400 are provided around the buffer concave portion 200; at least one set of protrusions 400 is located within 20mm from the edge of the outer body 10. Thus, the arrangement further improves the structural reinforcing effect of the convex part 400 on the appearance part, and ensures that the convex part 400 is far away from the gate forming area 13 as far as possible, so that the aluminum sheet is prevented from overturning, and the appearance surface 11 is further prevented from being marked with flow marks.

As shown in fig. 1, the appearance component further includes at least one set of snap-in portions. Wherein, each group's joint portion includes a plurality of joint ribs 600, and at least a set of joint portion is located the marginal 20 mm's of distance outward appearance body within range. Like this, the above-mentioned setting of joint rib 600 is convenient for outward appearance part and other structures to install fixedly, and then has reduced staff's the operation degree of difficulty.

The edge of the outer appearance body 10 is referred to as a filling end, and the risk of flow marks can be reduced.

In this embodiment, the appearance member is made of a spray-free material including a base material and particles distributed in the base material; wherein, the base material is a thermoplastic polymer material; the particles are any one or more of metal particles, pearls-lustre powder and fibers. Thus, the spraying-free material contains the particles, so that the injection molding part has unique light shadow effect and metallic luster after molding, and the appearance effect which is comparable to or better than that of spraying can be achieved without secondary treatment.

Optionally, the metal particles are aluminum or copper.

Optionally, the fibers are nylon or natural fibers.

In this embodiment, the appearance component is a desktop water purifier base.

The application also provides a household appliance, which comprises an appearance part, wherein the appearance surface 11 of the appearance part forms at least part of the appearance surface of the household appliance, and the appearance part is the appearance part.

In this embodiment, the household appliance is a desktop water purifier.

As shown in fig. 1, the present application also provides a mold having a cavity for forming the above-described exterior part, and a gate 30, the gate 30 communicating with the cavity.

As shown in fig. 1, the mold further has a buffer runner 50 and a melt inlet 60, a first end of the buffer runner 50 is communicated with the melt inlet 60, and the buffer runner 50 is communicated with an end of the gate 30 away from the mold cavity, so that the injection molding melt flows through the melt inlet 60, the buffer runner 50 and the gate 30 in sequence and then enters the mold cavity. The buffer flow passage 50 is cylindrical, so that the gate 30 is cylindrical. Thus, the buffer flow channel 50 plays a role of rubber material buffering, and further rubber material freezing time is prolonged.

Example two

The appearance parts in the second embodiment are different from those in the first embodiment in that: the structure of the convex portion 400 is different.

In this embodiment, the protrusion 400 is a snap. Specifically, the above arrangement of the convex portion 400 can improve the structural strength of the exterior body 10 or realize the assembly of the exterior body 10 with other structures, and the root thickness h of the convex portion 400₁With the above-mentioned setting of major ingredient thickness h of outward appearance spare body 10 can avoid producing the shrinkage mark on the outward appearance face 11 and influence the outward appearance aesthetic property of outward appearance part, and then solved the problem that the spraying-free injection molding easily produces the appearance defect.

Optionally, the buckle comprises a plurality of connecting ribs, the plurality of connecting ribs surrounding to form the snap-in portion. Wherein the direction of extension S of the connecting ribs₃With the direction of flow S of the injection-moulding melt₂And the second preset included angle is larger than 15 degrees. Thus, the above arrangement is avoided as much as possibleThe extending direction of the connecting ribs is parallel to the filling direction of the injection molding melt during injection molding, so that the characteristic filling speed gradient change of the injection molding melt in the parallel flow direction is reduced, and the influence of flow marks on the appearance surface 11 on the appearance attractiveness of the appearance part is further prevented.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the non-appearance surface is arranged at the inner side of the appearance surface, the convex part is arranged on the non-appearance surface, and the root part thickness h of the convex part₁And the thickness h of the main material of the appearance piece body satisfies the following conditions: h is₁Less than or equal to 0.6 h. Wherein, the convex part is a rib or a buckle. Like this, the above-mentioned setting of convex part can promote the structural strength of outward appearance spare body or realize the assembly of outward appearance spare body and other structures, and the root thickness h of convex part₁With the above-mentioned setting of the major ingredient thickness h of outward appearance spare body can avoid producing the shrinkage mark on the outward appearance face and influence the outward appearance aesthetic property of outward appearance part, and then solved and exempted from the problem that the spraying injection molding produced appearance defect easily.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (14)

1. An appearance part, characterized in that the appearance part is a spray-free injection molded part, the appearance part comprising an appearance body (10), the appearance body (10) having an appearance face (11) and a non-appearance face (12), the appearance part further comprising:

a convex part (400) provided on the non-exterior surface (12), wherein the thickness h of the root part of the convex part (400)₁And the thickness h of the main material of the appearance piece body (10) satisfies the following conditions: h is₁≤0.6h。

2. The appearance element according to claim 1, characterized in that said protrusions (400) are ribs, the direction of extension S of said ribs₁With the direction of flow S of the injection-moulding melt₂The first preset included angle a is larger than 15 degrees.

3. The appearance element according to claim 1, characterized in that said protruding portion (400) is a snap comprising a plurality of connecting ribs forming a snap around; wherein the extension direction S of each connecting rib₃With the direction of flow S of the injection-moulding melt₂And the second preset included angle is larger than 15 degrees.

4. The exterior member according to claim 1, wherein the exterior body (10) has a relief recess (200), the relief recess (200) being provided in correspondence with a gate (30) of a mold.

5. The appearance part according to claim 4, wherein, in a flow direction of the injection-molded melt, a distance between the projection (400) and a gate forming region (13) is larger than a distance between the projection (400) and a filling tip of the appearance piece body (10), the projection (400) being located between the filling tip and the gate forming region (13).

6. The appearance part according to claim 5, wherein a distance between the protrusion (400) and the gate forming area (13) in a flow direction of the injection-molded melt is greater than or equal to 20 mm.

7. The appearance element according to claim 1, characterized in that the appearance element further comprises:

the reinforcing ribs (500) are connected with the convex parts (400) and the appearance piece body (10), the number of the reinforcing ribs (500) is multiple, and the plurality of the reinforcing ribs (500) are arranged at intervals around the circumferential direction of the convex parts (400); wherein the direction of extension S of the bead (500)₄With the direction of flow S of the injection-moulding melt₂And a third preset included angle is formed between the first and second guide rails, and the third preset included angle is larger than 15 degrees.

8. The appearance element according to claim 7, wherein the projection (400) is a rib comprising a first rib section (401), a second rib section (402) and a third rib section (403) connected in series, the first rib section (401) being arranged opposite to the third rib section (403), and the reinforcing rib (500) being arranged on the first rib section (401) and/or the third rib section (403).

9. The appearance element according to claim 4, characterized in that the buffer recess (200) has a buffer slot opening and a buffer slot bottom, the depth of the buffer recess (200) decreasing in the direction of extension of the buffer slot bottom to the buffer slot opening.

10. The appearance element according to claim 4, wherein said buffer recess (200) is located in the middle of said appearance body (10), said protrusion (400) being one; alternatively, the convex portion (400) is provided in plurality, and the plurality of convex portions (400) are provided around the buffer concave portion (200).

11. The appearance element according to claim 1, characterized in that the appearance element further comprises:

at least a set of joint portion, each group joint portion include a plurality of joint ribs (600), and at least a set of joint portion is located the distance the marginal 20 mm's of outward appearance piece body within range.

12. A household appliance comprising an appearance component, the appearance face (11) of which forms at least part of the appearance face of the household appliance, characterized in that the appearance component is an appearance component according to any one of claims 1 to 11.

13. A mold having a cavity for forming the exterior part according to any one of claims 1 to 11, the mold further having a gate (30), the gate (30) communicating with the cavity.

14. The mold according to claim 13, further comprising a buffer runner (50) and a melt inlet (60), wherein a first end of the buffer runner (50) is connected to the melt inlet (60), and the buffer runner (50) is connected to an end of the gate (30) away from the cavity, so that the injection melt flows through the melt inlet (60), the buffer runner (50) and the gate (30) in sequence and then enters the cavity.

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