Appearance component, household appliance and mold

Abstract

The application provides an appearance component, a household appliance and a mold. The appearance component is a spray-free injection molding part, and the appearance component comprises an appearance part body, the appearance part body has an appearance surface and a non-appearance surface; the appearance component further comprises a connecting structure arranged on the non-appearance surface, the connecting structure has a mounting surface, and the mounting surface is arranged away from the non-appearance surface; and a screw column is arranged on the mounting surface. The application effectively solves the problem that the spray-free injection molding part in the prior art is prone to appearance defects.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to an appearance component, a household appliance and a mold. BACKGROUND

[0002] At present, household appliances usually adopt a spraying process to perform surface treatment on injection molded parts to realize the improvement of various colors and appearance textures and to cover part of the appearance defects, but there are problems of high cost and environmental pollution. Therefore, a spray-free technology can be adopted to replace and compensate for the spraying process problems, and the injection molded part of the spray-free material has unique light and shadow effects and metal luster after molding, and can achieve appearance effects comparable to or better than spraying without secondary treatment. The technology has advantages of excellent function, low cost, environmental protection and the like.

[0003] However, the spray-free material is prone to appearance defects such as flow marks, weld marks and gate marks during injection molding, and the position or degree of occurrence is difficult to predict, with poor consistency. SUMMARY

[0004] The main purpose of the present application is to provide an appearance component, a household appliance and a mold to solve the problem that the spray-free injection molded part in the prior art is prone to appearance defects.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an appearance component is provided, the appearance component is a spray-free injection molded part, and the appearance component comprises an appearance part body, the appearance part body has an appearance surface and a non-appearance surface; the appearance component further comprises: a connecting structure provided on the non-appearance surface, the connecting structure has a mounting surface, and the mounting surface is provided away from the non-appearance surface; and a screw column provided on the mounting surface.

[0006] Further, the appearance component further comprises: a connecting rib provided between the connecting structure and the non-appearance surface to connect the connecting structure and the non-appearance surface; wherein the connecting rib is arranged at a first preset angle between an extension direction of the connecting rib and a flow direction of the injection molded melt, and the first preset angle is greater than 15°.

[0007] Further, the connecting structure comprises: a surrounding plate, the connecting rib is connected with a first end surface of the surrounding plate; and a mounting plate provided on a second end surface of the surrounding plate, a surface of the mounting plate away from the non-appearance surface being the mounting surface.

[0008] Further, the appearance component further comprises: a first reinforcing rib, the first reinforcing rib is connected with both the outer circumferential surface of the connecting structure and the non-appearance surface; wherein the first reinforcing rib is a plurality of first reinforcing ribs, and the plurality of first reinforcing ribs are arranged at intervals in the circumferential direction of the connecting structure; and the first reinforcing rib is arranged at a second preset angle between an extension direction of the first reinforcing rib and the flow direction of the injection molded melt, and the second preset angle is greater than 15°.

[0009] Further, the thickness of the root of the connecting rib is less than or equal to 0.6T; and / or, the thickness of the root of the first reinforcing rib is less than or equal to 0.6T; wherein T is the main material thickness of the appearance part body.

[0010] Further, the appearance part further comprises: a second reinforcing rib, the second reinforcing rib being connected with the outer peripheral surface of the screw post and the mounting surface; the second reinforcing rib is a plurality of, and the plurality of second reinforcing ribs are arranged at intervals in the circumferential direction of the screw post.

[0011] Further, the appearance surface has a gate forming area corresponding to the gate of the mold, and the minimum distance between the screw post and the gate forming area is greater than the distance between the screw post and the injection end of the appearance part body along the flow direction of the injection melt.

[0012] Further, the appearance surface has a gate forming area corresponding to the gate of the mold, and the minimum distance between the screw post and the gate forming area is greater than or equal to 20mm.

[0013] Further, the appearance part is made of a spray-free material, the spray-free material comprising 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, pearl powder and fibers.

[0014] According to another aspect of the present application, a household appliance is provided, comprising an appearance part, the appearance surface of the appearance part forming at least part of the appearance surface of the household appliance, the appearance part being the above-mentioned appearance part.

[0015] According to another aspect of the present application, a mold is provided, the mold having a cavity for forming the above-mentioned appearance part, the mold further having a gate communicating with the cavity.

[0016] By applying the technical solution of the present application, the appearance part is made by spray-free technology, the appearance part is an injection molded product and is made of a spray-free material, the screw post is arranged on the non-appearance surface through the connecting structure, thereby avoiding the arrangement of the screw post affecting the smooth flow of the melt on the appearance surface, reducing the appearance defects such as flow marks, gate marks and weld marks on the appearance surface, and solving the problem that the spray-free injection molded part is prone to appearance defects. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0018] Figure 1 A perspective structural schematic view of an embodiment of the appearance part according to the present application is shown;

[0019] Figure 2 A perspective structural schematic view of an embodiment of the appearance part according to the present application is shown;Figure 1 enlarged schematic view of the appearance part in the Z direction;

[0020] Figure 3 a plan view of the appearance part in the Figure 1

[0021] Figure 4 a front view of the appearance part in the Figure 1

[0022] Figure 5 a side view of the appearance part in the Figure 1

[0023] wherein the above-mentioned drawings include the following reference signs:

[0024] 10, appearance part body; 11, appearance surface; 12, non-appearance surface; 300, connecting structure; 301, mounting surface; 310, coaming; 320, mounting plate; 400, screw column; 510, connecting rib; 520, first reinforcing rib; 530, second reinforcing rib. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled person in the technical field to which the present application belongs.

[0027] In the present application, unless otherwise specified, the orientation words such as "upper" and "lower" are generally directed to the directions shown in the drawings, or are directed to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left" and "right" are generally directed to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer relative to the contour of each component itself, but the above-mentioned orientation words are not used to limit the present application.

[0028] In order to solve the problem that the spray-free injection molded part is prone to appearance defects in the prior art, the present application provides an appearance part, a household appliance and a mold.

[0029] As shown in Figures 1 to 5 , the appearance part is a spray-free injection molded part, and the appearance part comprises an appearance part body 10, the appearance part body 10 having an appearance surface 11 and a non-appearance surface 12; the appearance part further comprises a connecting structure 300 and a screw column 400. Wherein the connecting structure 300 is arranged on the non-appearance surface 12, the connecting structure 300 has a mounting surface 301, the mounting surface 301 is arranged away from the non-appearance surface 12. The screw column 400 is arranged on the mounting surface 301.​​​

[0030] By applying the technical solution of the embodiment, the appearance component is made of the spray-free technology, the appearance component is an injection molding product and is made of a spray-free material, the screw column 400 is arranged on the non-appearance surface 12 through the connecting structure 300, thereby avoiding the influence of the arrangement of the screw column 400 on the smooth flow of the melt on the appearance surface 11, reducing the appearance defects such as flow marks, gate marks and weld marks on the appearance surface 11, and solving the problem that the spray-free injection molding part is prone to appearance defects.

[0031] In the embodiment, the non-appearance surface 12 is located on the inner side of the appearance surface 11 and is arranged opposite to the appearance surface 11.

[0032] In the embodiment, the mounting surface 301 is a plane, thereby increasing the connecting area between the screw column 400 and the non-appearance surface 12, improving the connecting stability between the screw column 400 and the appearance part body 10, improving the structural strength of the appearance component, and also making the processing of the screw column 400 easier and simpler and reducing the processing difficulty. The central axis of the screw column 400 is arranged perpendicular to the mounting surface 301.

[0033] It should be noted that when the appearance component is injection molded by a mold, the cavity of the mold is used to form the appearance component, the gate (also called the pouring port) is communicated with the cavity, and the material in the gate will form a gate forming part, and the area where the appearance component is connected with the gate forming part is the gate forming area.

[0034] It should be noted that when the appearance component is applied to a 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 to the application environment and can be seen by the user; the non-appearance surface 12 is located inside the household appliance, that is, the non-appearance surface 12 is a surface hidden inside the household appliance and cannot be seen by the user.

[0035] The appearance component in the application is made of the spray-free technology, the appearance component is an injection molding product and is made of a spray-free material, the spray-free injection molding part has a unique light and shadow effect and metal luster after forming, and can achieve an appearance effect comparable to or better than that of spraying without secondary treatment, and the technology has advantages of excellent function, low cost, environmental protection and the like.

[0036] Optionally, the screw column 400 is one, and the connecting structure 300 is one; or the screw column 400 is multiple, and the connecting structure 300 is multiple, and the multiple connecting structures 300 and the multiple screw columns 400 are arranged one by one in correspondence.

[0037] In the embodiment, the screw column 400 is three, the connecting structure 300 is three, and the fastener is three, and the three fasteners are arranged on the screw column 400 and other structures to connect the appearance component and other structures.

[0038] As shown in Figure 1 and Figure 2 shown, the appearance component further comprises a connecting rib 510. Among them, the connecting rib 510 is arranged between the connecting structure 300 and the non-appearance surface 12 to connect the connecting structure 300 and the non-appearance surface 12. Among them, the extending direction of the connecting rib 510 is arranged at a first preset included angle with the flow direction of the injection melt, and the first preset included angle is greater than 15°. In this way, since the connecting area of the connecting rib 510 and the non-appearance surface 12 is smaller than the connecting area of the screw column 400 directly connected with the non-appearance surface 12, the setting of the screw column 400 is avoided to affect the smooth flow of the melt on the appearance surface 11, and the flow marks on the appearance surface 11 are prevented. At the same time, the structure of the connecting rib 510 is relatively simple, thereby reducing the processing cost of the appearance component.

[0039] In the embodiment, along the extending direction of the connecting rib 510, the side wall of the root where the first end of the connecting rib 510 is connected with the non-appearance surface 12 is a first arc surface, the side wall of the root where the second end of the connecting rib 510 is connected with the non-appearance surface 12 is a second arc surface, and the first arc surface and the second arc surface are both curved towards the non-appearance surface 12.

[0040] In the embodiment, the connecting rib 510 is an arc-shaped rib, and the first preset included angle is the included angle between the tangent direction of the arc-shaped rib and the flow direction of the injection melt.

[0041] As shown in Figure 2 , the connecting structure 300 comprises a surrounding plate 310 and a mounting plate 320. Among them, the connecting rib 510 is connected with the first end face of the surrounding plate 310. The mounting plate 320 is arranged on the second end face of the surrounding plate 310, and the surface of the mounting plate 320 away from the non-appearance surface is the mounting surface. In this way, the above arrangement makes the structure of the connecting structure 300 more simple, easy to process and realize, and reduces the processing cost and difficulty of the appearance component.

[0042] As shown in Figure 1 and Figure 2 , the appearance component further comprises a first reinforcing rib 520. The first reinforcing rib 520 is connected with the outer peripheral surface of the connecting structure 300 and the non-appearance surface 12. In this way, the above arrangement increases the connecting strength between the connecting structure 300 and the non-appearance surface 12, thereby improving the overall structural strength of the appearance component, and avoiding the screw column 400 from being separated from the non-appearance surface 12 to affect the assembly of the appearance component and other structures.

[0043] In the embodiment, the side wall of the root where the first reinforcing rib 520 is connected with the non-appearance surface 12 is a third arc surface, the third arc surface is curved towards the non-appearance surface 12, and the first reinforcing rib 520 is arranged on the outer peripheral surface of the surrounding plate 310.

[0044] Optionally, the first reinforcing ribs 520 are multiple, and the multiple first reinforcing ribs 520 are arranged at intervals around the circumference of the connecting structure 300. In this way, the above arrangement increases the contact area between the first reinforcing ribs 520 and the connecting structure 300 and the non-outer appearance surface 12, thereby improving the strength reinforcing effect of the first reinforcing ribs 520.

[0045] In the embodiment, the first reinforcing ribs 520 are four, and the four first reinforcing ribs 520 are arranged at intervals around the circumference of the connecting structure 300. It should be noted that the number of the first reinforcing ribs 520 is not limited thereto and can be adjusted according to the working conditions and use requirements. Optionally, the first reinforcing ribs 520 are two, or three, or five, or six, or multiple.

[0046] Specifically, two first reinforcing ribs 520 are located on one side of the connecting structure 300, and the other two first reinforcing ribs 520 are located on the other side of the connecting structure 300, and the two first reinforcing ribs 520 located on different sides are oppositely arranged.

[0047] Optionally, the extension directions of all the first reinforcing ribs 520 are consistent, so as to reduce the characteristic filling speed gradient change of the parallel flow direction of the injection molding melt, and further prevent the appearance of flow marks on the outer appearance surface 11 to affect the appearance aesthetics of the appearance part.

[0048] Optionally, the thickness of the root of the connecting rib 510 is less than or equal to 0.6T; wherein T is the main material thickness of the appearance part body 10. In this way, the above arrangement avoids the influence of the arrangement of the connecting rib 510 on the smooth flow of the melt on the outer appearance surface 11, further preventing the appearance of flow marks on the outer appearance surface 11 to affect the appearance aesthetics of the appearance part.

[0049] Optionally, the thickness of the root of the first reinforcing rib 520 is less than or equal to 0.6T; wherein T is the main material thickness of the appearance part body 10. In this way, the above arrangement avoids the influence of the arrangement of the first reinforcing rib 520 on the smooth flow of the melt on the outer appearance surface 11, further preventing the appearance of flow marks on the outer appearance surface 11 to affect the appearance aesthetics of the appearance part.

[0050] In the embodiment, the extension direction of the first reinforcing rib 520 is arranged at a second preset included angle with the flow direction of the injection molding melt, and the second preset included angle is greater than 15°. In this way, the above arrangement ensures that the extension direction of the first reinforcing rib 520 is close to parallel with the filling direction of the injection molding melt during injection molding, thereby reducing the characteristic filling speed gradient change of the parallel flow direction of the injection molding melt, and further preventing the appearance of flow marks on the outer appearance surface 11 to affect the appearance aesthetics of the appearance part.

[0051] As Figure 1 and Figure 2As shown, the appearance component further comprises a second reinforcing rib 530. The second reinforcing rib 530 is connected to both the outer circumferential surface of the screw column 400 and the mounting surface 301. In this way, the above arrangement increases the contact area between the second reinforcing rib 530 and the screw column 400 and the mounting surface 301, thereby improving the strength reinforcement effect of the second reinforcing rib 530.

[0052] Optionally, the second reinforcing rib 530 is a plurality of second reinforcing ribs 530, and the plurality of second reinforcing ribs 530 are arranged at intervals around the circumference of the screw column 400. In this way, the above arrangement increases the contact area between the second reinforcing rib 530 and the screw column 400 and the mounting surface 301, thereby improving the strength reinforcement effect of the second reinforcing rib 530.

[0053] In the present embodiment, the second reinforcing rib 530 is four second reinforcing ribs 530 arranged at intervals around the circumference of the screw column 400. It should be noted that the number of second reinforcing ribs 530 is not limited to this and can be adjusted according to the working conditions and use requirements. Optionally, the second reinforcing rib 530 is two, or three, or five, or six, or a plurality of second reinforcing ribs 530.

[0054] In the present embodiment, the appearance surface 11 has a gate forming area corresponding to the gate of the mold, and the minimum distance between the screw column 400 and the gate forming area is greater than the distance between the screw column 400 and the injection end of the appearance component body 10 along the flow direction of the injection melt. In this way, since the speed and pressure of the injection melt are more stable when moving away from the gate forming area or at the filling end, the aluminum sheet flipping is reduced, and flow marks on the appearance surface 11 are further avoided.

[0055] It should be noted that the minimum distance between the screw column 400 and the gate forming area refers to the distance between the screw column 400 closest to the gate forming area and the gate forming area among the plurality of screw columns 400.

[0056] In the present embodiment, the appearance surface 11 has a gate forming area corresponding to the gate of the mold, and the minimum distance between the screw column 400 and the gate forming area is greater than or equal to 20 mm. In this way, since the speed and pressure of the injection melt are more stable when moving away from the gate forming area or at the filling end, the aluminum sheet flipping is reduced, and flow marks on the appearance surface 11 are further avoided.

[0057] In the present embodiment, the appearance component is made of a spray-free material, and the spray-free material comprises a base material and particles distributed in the base material; wherein the base material is a thermoplastic polymer material; and the particles are any one or more of metal particles, pearl powder and fibers. In this way, the spray-free material contains the above-mentioned particles, so that the injection molded part has a unique light and shadow effect and a metallic luster after molding, and can achieve an appearance effect comparable to or better than that of spraying without secondary treatment.

[0058] Optionally, the metal particles are aluminum or copper.

[0059] Optionally, the fiber is nylon or natural fiber.

[0060] Optionally, the appearance component is a base of a table-type water purifier.

[0061] The application further provides a household appliance (not shown) comprising the appearance component, the appearance surface 11 of the appearance component forms at least part of the appearance surface of the household appliance, and the appearance component is the appearance component described above.

[0062] Optionally, the household appliance is a table-type water purifier.

[0063] The application further provides a mold (not shown) having a cavity for forming the appearance component described above, and the mold further has a gate which is in communication with the cavity.

[0064] Optionally, the mold further has a buffer runner and a melt inlet, the first end of the buffer runner is in communication with the melt inlet, and the buffer runner is in communication with the end of the gate which is away from the cavity, so that the injection melt flows into the cavity in sequence through the melt inlet, the buffer runner and the gate.

[0065] Optionally, the buffer runner is a curved runner or an arc-shaped runner. In this way, the buffer runner plays a role of rubber buffering, and thus the rubber freezing time is prolonged.

[0066] From the above description, it can be seen that the above-described embodiments of the application achieve the following technical effects:

[0067] The appearance component is made by using a spray-free technology, the appearance component is an injection-molded product and is made of a spray-free material, the screw post is arranged on the non-appearance surface through the connecting structure, and thus the arrangement of the screw post does not affect the smooth flow of the melt on the appearance surface, the appearance defects such as flow marks, gate marks and weld marks on the appearance surface are reduced, and the problem that the spray-free injection-molded part is prone to appearance defects is solved.

[0068] Obviously, the above-described embodiments are only some of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work should belong to the protection scope of the application.

[0069] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0070] It should be noted that the terms "first", "second", and the like, used in the description and in the claims of the present application as well as above-mentioned figures are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of such terms herein is only to facilitate identifying the description of the embodiments of the present application and that the embodiments of the present application described herein can be carried out in other sequences than the one described herein or illustrated in the figures.

[0071] The preferred embodiments of the application described above are intended to be illustrative only and the application is not intended to be limited to the embodiments described herein. Numerous variations and modifications will be apparent to those skilled in the art in view of the foregoing description. It is intended that the scope of the application disclosed herein should only be limited by the claims below.

Claims

1. An appearance part, which is a spray-free injection molded part, comprising an appearance part body (10) having an appearance surface (11) and a non-appearance surface (12); the appearance part further comprising: a connecting structure (300) provided on the non-appearance surface (12), the connecting structure (300) having a mounting surface (301) provided away from the non-appearance surface (12); a screw post (400) provided on the mounting surface (301); the appearance surface (11) has a gate forming area corresponding to a gate of a mold, and the minimum distance between the screw post (400) and the gate forming area is greater than the distance between the screw post (400) and the injection end of the appearance part body (10) along the flow direction of the injection melt; the minimum distance between the screw post (400) and the gate forming area is greater than or equal to 20 mm.

2. The appearance part according to claim 1, characterized by The appearance part further comprises: a connecting rib (510) provided between the connecting structure (300) and the non-appearance surface (12) to connect the connecting structure (300) and the non-appearance surface (12); wherein the connecting rib (510) is arranged at a first preset included angle between the extension direction of the connecting rib (510) and the flow direction of the injection melt, and the first preset included angle is greater than 15°.

3. The appearance part according to claim 2, characterized in that, The connecting structure (300) comprises: a surrounding plate (310), the connecting rib (510) is connected to a first end surface of the surrounding plate (310); a mounting plate (320) provided on a second end surface of the surrounding plate (310), the surface of the mounting plate (320) away from the non-appearance surface (12) being the mounting surface (301).

4. The appearance component of claim 2, wherein, The appearance part further comprises: a first reinforcing rib (520) connected to both the outer peripheral surface of the connecting structure (300) and the non-appearance surface (12); wherein the first reinforcing rib (520) is a plurality of first reinforcing ribs (520) arranged at intervals in the circumferential direction of the connecting structure (300); the first reinforcing rib (520) is arranged at a second preset included angle between the extension direction of the first reinforcing rib (520) and the flow direction of the injection melt, and the second preset included angle is greater than 15°.

5. The appearance part according to claim 4, characterized in that, The thickness of the root of the connecting rib (510) is less than or equal to 0.6T; and / or, the thickness of the root of the first reinforcing rib (520) is less than or equal to 0.6T; wherein T is the main material thickness of the appearance part body (10).

6. The appearance component of claim 1, wherein, The appearance part further comprises: a second reinforcing rib (530) connected to both the outer peripheral surface of the screw post (400) and the mounting surface (301); the second reinforcing rib (530) is a plurality of second reinforcing ribs (530) arranged at intervals in the circumferential direction of the screw post (400).

7. The appearance component of claim 1, wherein, The appearance part is made of a spray-free material, the spray-free material comprising a substrate and particles distributed in the substrate; wherein the substrate is a thermoplastic polymer material; the particles are any one or more of metal particles, pearl powder and fibers.

8. A household appliance comprising an appearance part, an appearance surface (11) of which forms at least part of the appearance surface of the household appliance, characterized in that, The appearance part is the appearance part according to any one of claims 1 to 7.

9. A mold characterized in that, The mold has a cavity for forming the appearance part according to any one of claims 1 to 7, and the mold also has a gate communicating with the cavity.

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