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. The appearance component comprises an appearance part body, the appearance part body has an appearance surface and a non-appearance surface, and the appearance component further comprises a convex part arranged on the non-appearance surface. The root thickness h1 of the convex part and the main material thickness h of the appearance part body satisfy the following relationship: h1<=0.6h. 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, and the consistency is poor. 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, and the appearance component further comprises: a convex part arranged on the non-appearance surface, and a root thickness h1 of the convex part and a main material thickness h of the appearance part body satisfy: h1≤0.6h.

[0006] Further, the convex part is a rib, an extension direction S1 of the rib and a flow direction S2 of the injection molded melt form a first preset included angle a, and the first preset included angle a is greater than 15°.

[0007] Further, the convex part is a buckle, the buckle comprises a plurality of connecting ribs, and the plurality of connecting ribs surround to form a clamping part; wherein an extension direction S3 of each connecting rib and the flow direction S2 of the injection molded melt form a second preset included angle, and the second preset included angle is greater than 15°.

[0008] Further, the appearance part body has a buffer recess, and the buffer recess is arranged corresponding to a gate of the mold.

[0009] Further, along the flow direction of the injection molded melt, a distance between the convex part and a gate forming area is greater than a distance between the convex part and a filling end of the appearance part body, and the convex part is located between the filling end and the gate forming area.

[0010] Further, the distance between the convex part and the gate forming area is greater than or equal to 20 mm along the flow direction of the injection melt.

[0011] Further, the appearance part further comprises: a reinforcing rib, the reinforcing rib is connected with the convex part and the appearance part body, the reinforcing rib is multiple, and the multiple reinforcing ribs are arranged at intervals around the circumferential direction of the convex part; wherein the extending direction S4 of the reinforcing rib and the flow direction S2 of the injection melt form a third preset angle, and the third preset angle is greater than 15°.

[0012] Further, the convex part is a rib strip, the rib strip comprises a first rib strip segment, a second rib strip segment and a third rib strip segment connected in sequence, the first rib strip segment and the third rib strip segment are oppositely arranged, and the reinforcing rib is arranged on the first rib strip segment and / or the third rib strip segment.

[0013] Further, the buffer recess has a buffer slot and a buffer slot bottom, and the slot depth of the buffer recess gradually decreases along the extending direction from the buffer slot bottom to the buffer slot.

[0014] Further, the buffer recess is located at the middle part of the appearance part body, and the convex part is one; or the convex part is multiple, and the multiple convex parts are arranged around the buffer recess.

[0015] Further, the appearance part further comprises: at least one set of clamping parts, each set of clamping parts comprises multiple clamping ribs, and the at least one set of clamping parts is located within the range of 20 mm from the edge of the appearance part body.

[0016] According to another aspect of the present application, a household appliance is provided, comprising an appearance part, the appearance surface of the appearance part forms at least part of the appearance surface of the household appliance, and the appearance part is the above-mentioned appearance part.

[0017] According to another aspect of the present application, a mold is provided, the mold has a cavity for forming the above-mentioned appearance part, and the mold further has a gate which is in communication with the cavity.

[0018] Further, the mold further has a buffer flow channel and a melt inlet, the first end of the buffer flow channel is in communication with the melt inlet, and the buffer flow channel is in communication with the end of the gate away from the cavity, so that the injection melt flows through the melt inlet, the buffer flow channel and the gate in sequence and then enters the cavity.

[0019] According to the technical scheme, the non-appearance surface is located on the inner side of the appearance surface, the convex part is arranged on the non-appearance surface, and the root thickness h1 of the convex part and the main material thickness h of the appearance part body satisfy: h1≤0.6h. The convex part is a rib or a buckle. In this way, the above arrangement of the convex part can improve the structural strength of the appearance part body or realize the assembly of the appearance part body and other structures, and the above arrangement of the root thickness h1 of the convex part and the main material thickness h of the appearance part body can avoid the appearance surface from being affected by shrinkage marks to affect the appearance of the appearance part, thereby solving the problem that the spray-free injection molding part is prone to appearance defects. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the application, and together with the description of the application, serve to explain the application. The embodiments of the present application and its description are used to explain the application without forming an improper limitation to the application. In the drawings:

[0021] Figure 1 Fig. 1 shows a perspective structural schematic view of an appearance part in the assembly of a mold according to the present application;

[0022] Figure 2 Fig. 2 shows a side view of the appearance part in Fig. 1; Figure 1

[0023] Figure 3 Fig. 4 shows a B-B cross-sectional view of the appearance part in Fig. 1; and Figure 2

[0024] Figure 4 Fig. 5 shows an enlarged view of Z in Fig. 1. Figure 3

[0025] In the above drawings, the following reference signs are used:

[0026] 10, appearance part body; 11, appearance surface; 12, non-appearance surface; 13, gate forming area; 30, gate; 50, buffer runner; 60, melt inlet; 200, buffer recess; 400, convex part; 401, first rib segment; 402, second rib segment; 403, third rib segment; 500, reinforcing rib; 600, buckling rib. DETAILED DESCRIPTION

[0027] 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.

[0028] 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 in the art to which the present application belongs.

[0029] ​​​In this invention, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0030] To address the problem of appearance defects easily occurring in existing paint-free injection molded parts, this application provides an appearance component, a household appliance, and a mold.

[0031] Example 1

[0032] like Figures 1 to 4 As shown, the appearance component is a paint-free injection molded part. The appearance component includes an appearance component body 10, which has an appearance surface 11 and a non-appearance surface 12. The appearance component also includes a protrusion 400. The protrusion 400 is disposed on the non-appearance surface 12, and the root thickness h1 of the protrusion 400 and the main material thickness h of the appearance component body 10 satisfy the following condition: h1≤0.6h.

[0033] Applying the technical solution of this embodiment, the non-appearance surface 12 is located inside the appearance surface 11, and the protrusion 400 is disposed on the non-appearance surface 12. The root thickness h1 of the protrusion 400 and the main material thickness h of the appearance part body 10 satisfy the condition: h1 ≤ 0.6h. The protrusion 400 is a rib. Thus, the above-mentioned arrangement of the protrusion 400 can improve the structural strength of the appearance part body 10 or enable the assembly of the appearance part body 10 with other structures. Furthermore, the above-mentioned arrangement of the root thickness h1 of the protrusion 400 and the main material thickness h of the appearance part body 10 can prevent shrinkage marks from forming on the appearance surface 11, thus avoiding affecting the aesthetic appearance of the appearance component and solving the problem of appearance defects easily occurring in paint-free injection molded parts.

[0034] It should be noted that when using a mold to injection mold the appearance parts, the mold cavity is used to mold the appearance parts, the gate 30 (also called the sprue) is connected to the cavity, and the material in the gate 30 will form the gate forming part. The area where the appearance parts are connected to the gate forming part is the gate forming area 13.

[0035] It should be noted that when the appearance component is applied to a household appliance, the appearance surface 11 is part of the appearance of the household appliance, that is, the appearance surface 11 is the 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 the surface hidden inside the household appliance and cannot be seen by the user.

[0036] The appearance component in the application is made by a spray-free technology, the appearance component is an injection molding product and is made of a spray-free material, the spray-free injection molding product has a unique light and shadow effect and a metallic luster after molding, and can achieve an appearance effect comparable to or superior to that of spraying without secondary treatment, and the technology has advantages of excellent function, low cost, environmental protection, etc.

[0037] Optionally, a first preset angle a is formed between the extension direction S1 of the rib and the flow direction S2 of the injection melt, and the first preset angle a is greater than 15°. In this way, the above setting avoids the extension direction of the rib being parallel to the filling direction of the injection melt as much as possible during injection molding, thereby reducing the characteristic filling speed gradient change of the parallel flow direction of the injection melt, and further preventing the appearance of flow marks on the appearance surface 11 to affect the appearance of the appearance component.

[0038] As shown in Figure 3 The appearance component body 10 has a buffer recess 200 corresponding to the gate 30 of the mold. Specifically, due to the existence of the buffer recess 200, the liquid entering the injection molding cavity from the injection inlet is buffered by the buffer recess 200, and the buffered injection liquid will flow uniformly from the periphery of the injection inlet into the injection molding cavity. The above structure can effectively slow down the direct injection, improve the uniformity of injection molding, thereby effectively guaranteeing the quality of injection molding, and solving the technical problem of poor quality of injection molding in the prior art.

[0039] In the embodiment, the buffer recess 200 has a buffer slot opening and a buffer slot bottom, and the slot depth of the buffer recess 200 gradually decreases along the extension direction from the buffer slot bottom to the buffer slot opening. With such a structure, the liquid entering from the injection inlet can be fully buffered by the buffer recess 200, and the liquid at the buffer slot bottom can be guided to flow into the position of the buffer slot opening, thereby improving the uniformity of the flow direction of the liquid.

[0040] Specifically, the buffer recess 200 in the embodiment is an arc-shaped groove. With such a structure, the structure is reliable and can stably fully buffer the liquid in the buffer recess 200.

[0041] Optionally, along the flow direction of the injection melt, the distance between the convex part 400 and the gate forming area 13 is greater than the distance between the convex part 400 and the filling end of the appearance component body 10, and the convex part 400 is located between the filling end and the gate forming area 13. In this way, since the speed and pressure of the injection melt are more stable away from the gate forming area 13 or at the filling end, the aluminum sheet is less likely to flip, and flow marks on the appearance surface 11 are further avoided.

[0042] It should be noted that the distance between the convex portion 400 and the gate forming area 13 refers to the distance between the convex portion 400 closest to the gate forming area 13 and the gate forming area 13 in the plurality of convex portions 400.

[0043] Optionally, the distance between the convex portion 400 and the gate forming area 13 is greater than or equal to 20 mm in the flow direction of the injection melt. In this way, since the speed and pressure of the injection melt are more stable away from the gate forming area 13 or at the end of filling, the aluminum sheet is less likely to turn over, further avoiding the appearance of flow marks on the appearance surface 11.

[0044] As shown in Figure 3 and Figure 4 , the appearance part further comprises a reinforcing rib 500. The reinforcing rib 500 is connected with the convex portion 400 and the appearance part body 10, and the reinforcing rib 500 is a plurality of reinforcing ribs 500 which are arranged at intervals around the circumferential direction of the convex portion 400. In this way, the above arrangement increases the contact area between the convex portion 400 and the appearance part body 10, thereby improving the strength of the reinforcing rib 500, further improving the structural strength of the appearance part, and prolonging the service life of the appearance part.

[0045] Optionally, the reinforcing rib 500 is arranged at a third preset angle between the extension direction S4 of the reinforcing rib 500 and the flow direction S2 of the injection melt, and the third preset angle is greater than 15°. In this way, the above arrangement avoids the extension direction of the reinforcing rib 500 being parallel to the filling direction of the injection melt during injection as much as possible, thereby reducing the characteristic filling speed gradient change of the injection melt in the parallel flow direction, and further preventing the appearance of flow marks on the appearance surface 11 to affect the appearance of the appearance part.

[0046] As shown in Figure 4 , the rib strip comprises a first rib strip segment 401, a second rib strip segment 402 and a third rib strip segment 403 connected in sequence, the first rib strip segment 401 and the third rib strip segment 403 are arranged opposite to each other, and the reinforcing rib 500 is arranged on the first rib strip segment 401 and / or the third rib strip segment 403. In this way, the above arrangement makes the structure of the rib strip more simple, easy to process and realize, and reduces the processing cost of the convex portion 400.

[0047] Specifically, the reinforcing rib 500 is arranged on the first rib strip segment 401 and the third rib strip segment 403 to increase the contact area between the rib strip and the appearance part body 10, thereby improving the structural strength of the appearance part and prolonging the service life of the appearance part.

[0048] In this embodiment, the extension direction of the first rib segment 401 is the S1 direction, and the extension direction of the second rib segment 402 is perpendicular to the flow direction S2 of the injection molten material. The angle between the extension direction of the first rib segment 401 and the flow direction S2 of the injection molten material is the same as the angle between the extension direction of the first rib segment 401 and the flow direction S2 of the injection molten material, so that the arrangement of the ribs is easier and the processing cost of the appearance parts is reduced.

[0049] Optionally, there are multiple reinforcing ribs 500, and the multiple reinforcing ribs 500 are spaced apart along the extension direction of the first reinforcing rib segment 401.

[0050] Optionally, there are multiple reinforcing ribs 500, which are spaced apart along the extension direction of the third reinforcing rib segment 403.

[0051] In this embodiment, each rib is provided with four reinforcing ribs 500, two reinforcing ribs 500 are provided on the first rib segment 401, and the other two reinforcing ribs 500 are provided on the third rib segment 403.

[0052] In this embodiment, there are three protrusions 400. One of the three protrusions 400 is located near the buffer recess 200, and the other two protrusions 400 are located near the filling end.

[0053] Optionally, the buffer recess 200 is located in the middle of the outer appearance part body 10, and there is one protrusion 400; or, there are multiple protrusions 400, which are arranged around the buffer recess 200; at least one set of protrusions 400 is located within 20 mm of the edge of the outer appearance part body 10. In this way, the above arrangement further enhances the structural reinforcement effect of the protrusions 400 on the outer appearance part, and also ensures that the protrusions 400 are as far away from the gate forming area 13 as possible, thereby reducing aluminum sheet flipping and further avoiding flow marks on the appearance surface 11.

[0054] like Figure 1 As shown, the exterior component also includes at least one set of snap-fit ​​parts. Each set of snap-fit ​​parts includes multiple snap-fit ​​ribs 600, and at least one set of snap-fit ​​parts is located within 20mm of the edge of the exterior component body. This arrangement of the snap-fit ​​ribs 600 facilitates the installation and fixation of the exterior component to other structures, thereby reducing the difficulty of operation for workers.

[0055] It should be noted that the edge of the exterior part body 10 refers to the end of the filling, which can reduce the risk of flow marks.

[0056] In the embodiment, the appearance component is made of a spray-free material, which comprises a substrate and particles distributed in the substrate; wherein the substrate 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.

[0057] Optionally, the metal particles are aluminum or copper.

[0058] Optionally, the fibers are nylon or natural fibers.

[0059] In the embodiment, the appearance component is a base of a table type water purifier.

[0060] The application also provides a household appliance comprising the appearance component, wherein an appearance surface 11 of the appearance component forms at least part of an appearance surface of the household appliance, and the appearance component is the above-mentioned appearance component.

[0061] In the embodiment, the household appliance is a table type water purifier.

[0062] As shown in Figure 1 The application also provides a mold, which has a cavity for forming the above-mentioned appearance component, and further has a gate 30 communicating with the cavity.

[0063] As shown in Figure 1 The mold further has a buffer runner 50 and a melt inlet 60, the first end of the buffer runner 50 communicates with the melt inlet 60, and the buffer runner 50 communicates with the end of the gate 30 away from the cavity, so that the injection melt flows into the cavity in sequence through the melt inlet 60, the buffer runner 50 and the gate 30. Wherein, the buffer runner 50 is columnar, so that the gate 30 is columnar. In this way, the buffer runner 50 plays a role of rubber buffer, thereby prolonging the freezing time of the rubber.

[0064] Embodiment Two

[0065] The appearance component in Embodiment Two is different from that in Embodiment One in that the structure of the convex part 400 is different.

[0066] In the embodiment, the convex part 400 is a buckle. Specifically, the above-mentioned arrangement of the convex part 400 can improve the structural strength of the appearance component body 10 or realize the assembly of the appearance component body 10 and other structures, and the above-mentioned arrangement of the root thickness h1 of the convex part 400 and the main material thickness h of the appearance component body 10 can avoid the occurrence of shrinkage marks on the appearance surface 11 and affect the appearance aesthetics of the appearance component, thereby solving the problem that the spray-free injection molded part is prone to appearance defects.

[0067] Optionally, the buckle comprises a plurality of connecting ribs, and the plurality of connecting ribs surround the buckle part. Wherein, each connecting rib is arranged at a second preset included angle between the extending direction S3 of the connecting rib and the flow direction S2 of the injection melt, and the second preset included angle is greater than 15°. In this way, the above arrangement avoids the extending direction of the connecting rib being parallel to the filling direction of the injection melt as much as possible, thereby reducing the characteristic filling velocity gradient variation of the injection melt in the parallel flow direction, and further preventing the appearance of flow marks on the appearance surface 11 to affect the appearance aesthetics of the appearance part.

[0068] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0069] The non-appearance surface is located on the inner side of the appearance surface, and the convex part is arranged on the non-appearance surface. The root thickness h1 of the convex part and the main material thickness h of the appearance part body satisfy: h1≤0.6h. Wherein, the convex part is a rib or a buckle. In this way, the above arrangement of the convex part can improve the structural strength of the appearance part body or realize the assembly of the appearance part body and other structures, and the above arrangement of the root thickness h1 of the convex part and the main material thickness h of the appearance part body can avoid the appearance of shrinkage marks on the appearance surface to affect the appearance aesthetics of the appearance part, thereby solving the problem that the spray-free injection molded part is prone to appearance defects.

[0070] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0071] 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 present 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.

[0072] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0073] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. An exterior component characterized by, The appearance component is a spray-free injection molding part, the appearance component comprises an appearance body (10), the appearance body (10) has an appearance surface (11) and a non-appearance surface (12), and the appearance component further comprises: A convex part (400) is arranged on the non-appearance surface (12), and a root thickness h1 of the convex part (400) and a main material thickness h of the appearance body (10) satisfy: h1≤0.6h; In the flow direction of the injection melt, the distance between the convex part (400) and the gate forming area (13) is greater than the distance between the convex part (400) and the filling end of the appearance body (10), and the convex part (400) is located between the filling end and the gate forming area (13).

2. The appearance component of claim 1, wherein, The convex part (400) is a rib, and the extension direction S1 of the rib is arranged at a first preset angle a with the flow direction S2 of the injection melt, and the first preset angle a is greater than 15°.

3. The appearance component of claim 1, wherein, The convex part (400) is a buckle, and the buckle comprises a plurality of connecting ribs, and the plurality of connecting ribs surround a clamping part; wherein the extension direction S3 of each connecting rib is arranged at a second preset angle with the flow direction S2 of the injection melt, and the second preset angle is greater than 15°.

4. The appearance component of claim 1, wherein, The appearance body (10) has a buffer recess (200), and the buffer recess (200) is arranged corresponding to the gate (30) of the mold.

5. The appearance component of claim 1, wherein, In the flow direction of the injection melt, the distance between the convex part (400) and the gate forming area (13) is greater than or equal to 20mm.

6. The appearance component of claim 1, wherein, The appearance component further comprises: A reinforcing rib (500) is connected with the convex part (400) and the appearance body (10), the reinforcing rib (500) is a plurality of reinforcing ribs (500), and the plurality of reinforcing ribs (500) are arranged at intervals around the circumference of the convex part (400); wherein the extension direction S4 of the reinforcing rib (500) is arranged at a third preset angle with the flow direction S2 of the injection melt, and the third preset angle is greater than 15°.

7. The appearance part according to claim 6, characterized in that The convex part (400) is a rib, and the rib comprises a first rib segment (401), a second rib segment (402) and a third rib segment (403) connected in sequence, the first rib segment (401) and the third rib segment (403) are oppositely arranged, and the reinforcing rib (500) is arranged on the first rib segment (401) and / or the third rib segment (403).

8. The appearance part according to claim 4, characterized by The buffer recess (200) has a buffer slot and a buffer groove bottom, and the groove depth of the buffer recess (200) gradually decreases in the extension direction from the buffer groove bottom to the buffer slot.

9. The appearance part according to claim 4, characterized by The buffer recess (200) is located in the middle part of the appearance body (10), and the convex part (400) is one; or the convex part (400) is a plurality of convex parts (400), and the plurality of convex parts (400) are arranged around the buffer recess (200).

10. The appearance part according to claim 1, characterized by The appearance component further comprises: At least one set of clamping parts, each set of clamping parts comprises a plurality of clamping ribs (600), and at least one set of clamping parts is located within a range of 20mm from the edge of the appearance body.

11. 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 10.

12. A mold characterized in that, The mold has a cavity for forming the appearance part according to any one of claims 1 to 10, and has a gate (30) communicating with the cavity.

13. The mold of claim 12, wherein, The mold further has a buffer runner (50) and a melt inlet (60), the first end of the buffer runner (50) communicating with the melt inlet (60), and the buffer runner (50) communicating with the end of the gate (30) away from the cavity, so that the injection melt flows into the cavity in sequence through the melt inlet (60), the buffer runner (50) and the gate (30).

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