Door assembly, laundry treating apparatus, and decorative ring mold

Abstract

Embodiments of the present application provide a door assembly, a clothes processing device and a decorative ring mold. The door assembly includes a decorative ring, which is an integrally injection molded part. The decorative ring includes a decorative main plate, which includes a decorative panel, a transition connecting plate and a side plate. The surface of the decorative panel on one side along its thickness direction is a first appearance surface, and the surface on the other side is a first non-appearance surface. One side of the side plate along its width direction is connected to the outer peripheral wall of the decorative panel through the transition connecting plate. The surface of the side plate on the side away from the decorative panel in the thickness direction is a second appearance surface, and the surface on the other side is a second non-appearance surface. The first non-appearance surface is provided with a gate forming area corresponding to the gate of the decorative ring mold. The wall thickness of the side plate is smaller than the wall thickness of the decorative panel. The possibility of flow mark defects appearing on the appearance surface of the decorative main plate can be effectively reduced, thereby improving the production qualified rate of the decorative ring and reducing the production cost of the decorative ring.

Description

Technical Field

[0001] This application relates to the field of injection molding technology, and in particular to a door assembly, clothing processing equipment and decorative ring mold. Background Technology

[0002] Generally, decorative rings for clothing handling equipment, such as top-loading washing machines, are an important component of top-loading washing machines, requiring both functionality and aesthetics.

[0003] In related technologies, flow marks are prone to appear on the product when injection molding decorative rings. When severe flow marks appear on the surface of the product, it not only leads to a low product qualification rate and high cost, but also fails to meet the user's needs. Utility Model Content

[0004] To address the aforementioned technical problems, embodiments of this application provide a door assembly, a garment processing device, and a decorative ring mold to improve flow defects in the decorative ring and increase its pass rate.

[0005] The embodiments of this application are implemented through the following technical solutions.

[0006] A first aspect of this application provides a door assembly for a garment processing device. The door assembly includes a decorative ring, which is an integrally injection-molded part. The decorative ring includes a decorative main board, which includes: The decorative panel has a first visible surface on one side along its thickness direction and a first non-visual surface on the other side. The system includes a transition connecting plate and a side plate. One side of the side plate is connected to the outer peripheral wall of the decorative panel along its width direction via the transition connecting plate. The side surface of the side plate facing away from the decorative panel in its thickness direction is a second visible surface, and the other side surface is a second non-visible surface. The first non-visible surface is provided with a gating gate forming area corresponding to the gating gate of the decorative ring mold. The wall thickness of the side panel is less than the wall thickness of the decorative panel.

[0007] In one embodiment, the wall thickness of the decorative panel remains constant or gradually decreases, and the wall thickness of the side panel remains constant or gradually decreases along the direction away from the transition connecting plate; and / or, the injection gate forming area is located on the side of the first non-appearance surface away from the transition connecting plate along its width direction.

[0008] In one embodiment, the wall thickness of the decorative panel at the end away from the transition connecting plate ranges from 2 mm to 4 mm.

[0009] In one embodiment, the wall thickness of the decorative panel near the end of the transition connecting plate ranges from 2 mm to 3.5 mm.

[0010] In one embodiment, the wall thickness of the side plate near the transition connecting plate ranges from 1 mm to 3 mm.

[0011] In one embodiment, the wall thickness of the side plate at the end away from the transition connecting plate ranges from 1 mm to 3 mm.

[0012] In one embodiment, the decorative ring includes a first reinforcing rib, one side surface of which is connected to the first non-appearance surface, and the first reinforcing rib is spaced apart from the second non-appearance surface.

[0013] In one embodiment, the thickness of the first reinforcing rib is less than or equal to 0.4 times the wall thickness of the side plate.

[0014] In one embodiment, the thickness of the first reinforcing rib ranges from 0.5 mm to 2 mm.

[0015] In one embodiment, the decorative ring includes a second reinforcing rib, which is disposed on the first non-surface surface. The angle between the extension direction of the second reinforcing rib and the extension direction of the side plate ranges from 30° to 150°.

[0016] In one embodiment, the decorative ring includes a third reinforcing rib disposed on the first non-appearance surface, and the angle between the extending direction of the third reinforcing rib and the extending direction of the side plate ranges from 0° to 30°. Along the width direction of the third reinforcing rib, at least one adhesive-reducing portion is provided at the root of the third reinforcing rib, and the thickness of the adhesive-reducing portion is less than the wall thickness of the other areas of the third reinforcing rib excluding the adhesive-reducing portion.

[0017] In one embodiment, the spacing between adjacent adhesive-reducing portions ranges from 10 mm to 25 mm along the extending direction of the third reinforcing rib.

[0018] In one embodiment, the thickness of the adhesive-reducing portion ranges from 0.1 mm to 0.7 mm, or the adhesive-reducing portion penetrates the third reinforcing rib along the thickness direction of the third reinforcing rib.

[0019] In one embodiment, the decorative ring includes a fourth reinforcing rib, which is disposed on the first non-appearance surface and / or the second non-appearance surface, and the weld line of the decorative main board is located at the fourth reinforcing rib.

[0020] In one embodiment, the thickness of the fourth reinforcing rib is less than or equal to 0.4 times the wall thickness of the side plate.

[0021] In one embodiment, the thickness of the fourth reinforcing rib ranges from 0.5 mm to 2 mm.

[0022] In one embodiment, the decorative ring includes a support rib disposed on the first non-appearance surface, and the cross-sectional shape of the support rib is polygonal in a section perpendicular to the extension direction of the support rib.

[0023] In one embodiment, a glue-reducing groove is provided at the root of the supporting rib.

[0024] A second aspect of this application provides a garment processing device, the garment processing device including the door assembly described above.

[0025] A third aspect of this application provides a decorative ring mold for forming the decorative ring of the aforementioned door assembly. The decorative ring mold has a decorative ring cavity, which includes a main decorative plate cavity. The main decorative plate cavity includes: The decorative panel cavity has one side wall along its thickness direction for forming a first appearance surface and the other side wall for forming a first non-appearance surface. The transition connecting plate cavity and the side plate cavity are provided. One side of the side plate cavity along its width direction is connected to the decorative panel cavity through the transition connecting plate cavity. The side wall of the side plate cavity facing away from the decorative panel cavity along its thickness direction is used to form the second appearance surface, and the other side wall is used to form the second non-appearance surface. The wall of the decorative panel cavity used to form the first non-appearance surface is provided with a gate. The thickness of the side panel cavity is less than the thickness of the decorative panel cavity.

[0026] In one embodiment, the thickness of the decorative panel cavity remains constant or gradually decreases along the direction close to the transition connecting plate cavity, and the thickness of the side plate cavity remains constant or gradually decreases along the direction away from the transition connecting plate cavity; and / or, the injection gate is disposed on the side of the decorative panel cavity used to form the first non-appearance surface away from the transition connecting plate cavity in the width direction.

[0027] In one embodiment, the decorative ring cavity includes a first reinforcing rib cavity, which is connected to the decorative panel cavity and the transition connecting plate cavity, and the first reinforcing rib cavity is spaced apart from the side plate cavity.

[0028] In one embodiment, the decorative ring cavity includes a second reinforcing rib cavity, the second reinforcing rib cavity being connected to the decorative panel cavity, and the angle between the extending direction of the second reinforcing rib cavity and the extending direction of the side panel cavity being in the range of 30° to 150°.

[0029] In one embodiment, the decorative ring cavity includes a third reinforcing rib cavity, the third reinforcing rib cavity being connected to the decorative panel cavity, and the angle between the extending direction of the third reinforcing rib cavity and the extending direction of the side panel cavity ranging from 0° to 30°. Along the width direction of the third reinforcing rib cavity, at least one protrusion is provided at the root of the third reinforcing rib cavity.

[0030] In one embodiment, the distance between adjacent protrusions along the extending direction of the third reinforcing rib cavity ranges from 10 mm to 25 mm.

[0031] In one embodiment, the thickness of the third reinforcing rib cavity at the protrusion ranges from 0.1 mm to 0.7 mm, or the thickness of the third reinforcing rib cavity at the protrusion is 0.

[0032] In one embodiment, the decorative ring cavity includes a fourth reinforcing rib cavity, the fourth reinforcing rib cavity being connected to the decorative main board cavity, and the weld line of the decorative main board being located at the fourth reinforcing rib cavity.

[0033] The decorative ring of this application embodiment has a gate forming area corresponding to the gate of the decorative ring mold on the first non-appearance surface of the decorative panel. During the injection molding process, the melt in the decorative ring cavity can flow sequentially through the decorative panel cavity, the transition connecting plate cavity, and the side plate cavity. By setting the wall thickness of the side plate to be less than the wall thickness of the decorative panel, the flow velocity of the melt in the decorative panel cavity is greater than that in the side plate cavity. This allows the melt to convex forward and in a single direction in the main decorative panel cavity. As a result, the melt has a clear leading edge flow, and the points of the melt flow leading edge face outward, without curling or flipping inward. The melt does not merge, ensuring a stable metallic texture in appearance. This effectively reduces the possibility of flow marks on the appearance surface of the main decorative panel, thereby improving the production qualification rate of the decorative ring and reducing the production cost of the decorative ring. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the decorative ring according to the first embodiment of this application; Figure 2 This is a schematic diagram of the structure of the decorative ring according to the second embodiment of this application; Figure 3 for Figure 2 Schematic diagram of the cross section at point AA; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5This is a partial structural diagram of the decorative ring located at the third reinforcing rib in the third embodiment of this application; Figure 6 This is a partial structural diagram of the decorative ring located at the second reinforcing rib in some embodiments of this application; Figure 7 This is a partial structural diagram of the decorative ring located at the support rib in some embodiments of this application; Figure 8 This is a schematic diagram of the flow of melt within the cavity of a decorative ring in related technologies. Straight arrows schematically show the flow direction of the melt. Figure 9 This is a schematic diagram of the melt flow in the cavity of the decorative ring according to an embodiment of this application. Straight arrows schematically show the flow direction of the melt. Figure 10 This is a schematic diagram of the flow of melt in the outer cavity and the rib cavity extending roughly along the melt flow direction in the related technology. The curved arrows schematically show the flow direction of melt backflow in the rib cavity, and the straight arrows schematically show the flow direction of melt in the outer cavity. Figure 11 This is a schematic diagram showing the relationship between the thickness of the reinforcing bar and the solidified layer. Figure 12 This is a schematic diagram of the melt flow direction at an angle to the rib in the first embodiment of this application; Figure 13 This is a schematic diagram of the melt flow direction at an angle to the rib in the second embodiment of this application; Figure 14 This is a schematic diagram of the melt flow at the fourth reinforcing rib in an embodiment of this application. Straight arrows schematically show the flow direction of the melt.

[0035] Explanation of reference numerals in the attached figures 10. Decorative main board; 11. Decorative panel; 111. First exterior surface; 112. First non-exterior surface; 113. Injection gate forming area; 12. Transition connecting plate; 13. Side plate; 131. Second exterior surface; 132. Second non-exterior surface; 20. First reinforcing rib; 30. Second reinforcing rib; 40. Third reinforcing rib; 41. Glue reduction section; 50. Fourth reinforcing rib; 60. Support rib; 61. Glue reduction groove; 100. Decorative ring; 1000. Exterior surface cavity; 2000. Rib cavity. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0038] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0040] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0042] In the description of this application, the orientation or positional relationship of "length direction", "width direction" and "thickness direction" are based on the orientation or positional relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0044] The decorative ring 100 of the door assembly of a garment handling device, such as a top-loading washing machine, is an important component of the washing machine, requiring both functionality and aesthetics.

[0045] Generally, the manufacturing process for decorative rings (100mm) involves injection molding followed by spraying. While spray-painted decorative rings achieve a striking metallic appearance, the process suffers from drawbacks such as high pollution, high cost, low yield, and non-recyclability after disposal. These drawbacks severely impact the environment and the health of production workers, contradicting the concept of green manufacturing. To address these shortcomings, paint-free thermoplastic engineering melts have emerged. Paint-free injection molding can achieve a metallic appearance, eliminating the need for spraying, thus reducing production costs and avoiding pollutant emissions during the spraying process.

[0046] Whether the decorative ring 100 is manufactured using a paint-free material or through injection molding and spraying, for melts with poor flowability, especially paint-free materials containing metal particles, the presence of metal particles and other substances in the paint-free material can cause uneven distribution of metal particles when the melt encounters obstacles during the injection molding process. As a result, when the product is injection molded, light scattering occurs under illumination, and flow lines are visually formed on the product, leading to flow line defects. When flow lines appear on the surface of the product, it not only results in a low product qualification rate but also fails to meet the user's needs.

[0047] like Figures 1 to 6 As shown in the embodiment of this application, a door assembly for a garment processing device includes a decorative ring 100, which is an integrally injection-molded part. This integral structure not only ensures the structural and performance stability of the decorative ring 100, but also facilitates molding and simplifies manufacturing. Furthermore, it eliminates unnecessary assembly parts and connection processes, ensuring the reliability of the decorative ring 100 connection. Moreover, the integrally molded structure has higher overall strength and stability, is easier to assemble, and has a longer lifespan. Optionally, the garment processing device is a washing machine, dryer, or washer-dryer combo.

[0048] For example, the door assembly of the garment handling device includes a decorative ring 100, an outer door ring, and an inner door ring. The decorative ring 100 is disposed on the outer periphery of the inner and outer door rings and covers the seam between the inner and outer door rings. It is understood that the decorative ring 100 can reduce the likelihood of the seam between the inner and outer door rings being exposed within the user's field of vision, thereby improving the overall appearance of the door assembly and enhancing the aesthetic appeal of the garment handling device.

[0049] In the following description, the decorative ring 100 of this application embodiment is formed by injection molding from a melt consisting of a matrix containing metal powder. That is, the material of the decorative ring 100 includes a matrix and metal powder distributed in the matrix. The decorative ring 100 formed using a matrix containing metal powder has a metallic appearance and does not require additional metal coating, i.e., the plastic part is a paint-free plastic part.

[0050] For ease of description, the following example illustrates how a decorative ring 100 is formed by injection molding of a melt containing a metal powder matrix.

[0051] The type of metal powder is not limited; for example, metal powder includes, but is not limited to, copper, silver and / or aluminum, etc.

[0052] Metal powder refers to metal in granular form. The size of the particles is not limited in this application.

[0053] The type of matrix is ​​not limited; for example, the matrix includes, but is not limited to, resins, etc.

[0054] like Figures 1 to 4 As shown, the decorative mainboard 10 includes a decorative panel 11, a transition connecting plate 12, and a side plate 13. Specifically, taking the garment processing equipment as an example during normal use, the decorative panel 11 is the plate on the front side of the decorative ring 100, the side plate 13 is the plate around the decorative ring 100, and the transition connecting plate 12 is the plate at the junction of the decorative panel 11 and the side plate 13. It can be understood that a certain corner is formed on the transition connecting plate 12 to achieve the transition from the decorative panel 11 to the side plate 13.

[0055] It should be noted that the dimensions of different components in the three directions are different in the same absolute coordinate system. Generally, the length, width and thickness of an object are determined according to the dimensions of the object extending in the three directions. The length is greater than the width, and the width is greater than the thickness. Therefore, the length, width and thickness directions of different components may be different. Therefore, the following description will specify which component's length, width or thickness is being referred to.

[0056] Specifically, such as Figures 3 to 5As shown in the embodiments of this application, the thickness direction and width direction of the decorative panel 11 are represented by d1 and d5, the length direction, width direction and thickness direction of the side panel 13 are represented by d2, d3 and d4 respectively, and the length direction of the transition connecting plate 12 is consistent with the length direction d2 of the side panel 13.

[0057] like Figure 4 As shown, the surface of the decorative panel 11 along its thickness direction d1 on one side is the first appearance surface 111, and the surface on the other side is the first non-appearance surface 112.

[0058] Specifically, the first non-appearance surface 112 is the surface of the decorative panel 11 facing the side panel 13 along its thickness direction d1, and the second appearance surface 131 is the surface of the decorative panel 11 away from the side panel 13 along its thickness direction d1.

[0059] The side panel 13 is connected to the outer peripheral wall of the decorative panel 11 via a transition connecting plate 12 along one side of its width direction d3. The surface of the side panel 13 along its thickness direction d4 is the second appearance surface 131, and the surface of the other side is the second non-appearance surface 132.

[0060] Specifically, the second non-appearance surface 132 is the surface of the side panel 13 facing the decorative panel 11 along its thickness direction d4, and the second appearance surface 131 is the surface of the side panel 13 away from the decorative panel 11 along its thickness direction d4.

[0061] It is understandable that the first non-exterior surface 112 and the second non-exterior surface 132 are not exposed on the outside of the garment processing equipment, while the first exterior surface 111 and the second exterior surface 131 are exposed on the outside of the garment processing equipment. During normal use of the garment processing equipment, the user cannot see the first non-exterior surface 112 and the second non-exterior surface 132, but can see the first exterior surface 111 and the second exterior surface 131.

[0062] The first non-appearance surface 112 is provided with a gate forming area 113 corresponding to the gate of the decorative ring mold.

[0063] For example, the first non-appearance surface 112 is provided with a gate forming area 113 corresponding to the gate of the decorative ring mold on the side away from the transition connecting plate 12 along its width direction d5.

[0064] It should be noted that the side of the first non-appearance surface 112 away from the transition connecting plate 12 along its width direction d5 includes half of the area of ​​the first non-appearance surface 112 away from the transition connecting plate 12 in the width direction.

[0065] Specifically, after the decorative ring 100 is injection molded using a decorative ring mold and exits the mold, a portion of the molten metal at the gate of the decorative ring mold remains on the decorative ring 100, forming a gate forming part. The gate forming area 113 is the area where the gate forming part corresponding to the gate is located. It is understood that the decorative ring 100 can be further processed to remove or partially remove the gate forming part. Alternatively, the gate forming part of the decorative ring 100 can be left unprocessed, i.e., retained on the decorative ring 100. There is no specific limitation on this; it can be set according to the actual needs of production.

[0066] For example, the wall thickness of the side plate 13 is less than the wall thickness of the decorative panel 11. This allows the melt to flow in a more regular manner.

[0067] In order to clearly explain the decorative ring 100 provided in the embodiments of this application, the decorative ring mold provided in the embodiments of this application is first described. The decorative ring mold is used for injection molding the decorative ring 100 of the embodiments of this application.

[0068] This application provides a decorative ring mold with a decorative ring cavity. During injection molding, the molten metal enters and fills the decorative ring cavity. After molding and cooling, the mold is opened to obtain the decorative ring 100.

[0069] The decorative ring cavity includes a decorative main board cavity, which in turn includes a decorative panel cavity, a transition connecting plate cavity, and a side plate cavity. One wall of the decorative panel cavity along its thickness direction is used to form the first visible surface 111, and the other wall is used to form the first non-visual surface 112. One side of the side plate cavity along its width direction is connected to the decorative panel cavity via the transition connecting plate cavity. The side wall of the side plate cavity, along its thickness direction, facing away from the decorative panel cavity, is used to form the second visible surface 131, and the other wall is used to form the second non-visual surface 132. A gating gate is provided on the wall of the decorative panel cavity used to form the first non-visual surface 112. The thickness of the side plate cavity is less than the thickness of the decorative panel cavity.

[0070] For example, the gate is located on the side of the decorative panel cavity that is away from the transition connecting plate cavity in the width direction of the wall surface used to form the first non-appearance surface 112. For example, for the decorative ring mold, the thickness of the decorative panel cavity remains constant or gradually decreases in the direction close to the transition connecting plate cavity, and the thickness of the side plate cavity remains constant or gradually decreases in the direction away from the transition connecting plate cavity, with the thickness of the side plate cavity being less than the thickness of the decorative panel cavity.

[0071] Along the direction close to the transition connecting plate 12, the wall thickness of the decorative panel 11 remains constant or gradually decreases. That is, along the width direction of the decorative panel 11 towards the transition connecting plate 12, the decorative panel 11 has a uniform wall thickness or a gradually decreasing wall thickness, which can make the melt flow in a more regular manner.

[0072] Along the direction away from the transition connecting plate 12, the wall thickness of the side plate 13 remains unchanged or gradually decreases. That is, along the width direction of the side plate 13 away from the transition connecting plate 12, the side plate 13 has a uniform wall thickness or a gradually decreasing wall thickness, which can make the melt form a more regular flow.

[0073] For example, the wall thickness of the transition connecting plate 12 remains constant or gradually decreases along the direction away from the decorative panel 11.

[0074] The difference in the thickness of the decorative panel cavity manifests as a difference in the flow velocity of the melt within the decorative panel cavity. As mentioned above, if the surface of the melt flow front is locally concave due to the difference in flow velocity during the melt flow in one direction, flow marks will appear on the second outer surface 131 of the formed decorative panel 11.

[0075] The difference in the thickness of the side plate cavity manifests as a difference in the flow velocity of the melt inside the side plate cavity. As mentioned above, if the surface of the melt flow front is locally concave due to the difference in flow velocity during the melt flow in one direction, flow marks will appear on the second outer surface 131 of the molded side plate 13.

[0076] By setting the wall thickness of the side plate 13 to be less than that of the decorative panel 11, the melt can flow more regularly in the decorative panel cavity and the side plate cavity. At the same time, since the wall thickness of the side plate 13 is less than that of the decorative panel 11, the flow rate of the melt can be reduced as it flows through the decorative panel cavity, the transition connecting plate cavity, and the side plate cavity in sequence. This reduces the flow rate of the melt at the parting surface, allowing the melt to convex forward and move in a single direction in the decorative main plate cavity. This results in a clear leading edge flow of the melt, with each point of the melt's flow front facing outward, without curling or turning inward. The melt will not merge, ensuring a stable metallic texture in the appearance. This effectively reduces the possibility of flow marks appearing on the surface of the decorative main plate 10, thereby improving the production qualification rate of the decorative ring 100 and reducing the production cost of the decorative ring 100.

[0077] For example, by setting the wall thickness of the decorative panel 11 to be constant or gradually reduced along the direction close to the transition connecting plate 12, and by setting the wall thickness of the side plate 13 to be constant or gradually reduced along the direction away from the transition connecting plate 12, it is further beneficial for the melt to flow more regularly in the decorative panel cavity and the side plate cavity, further effectively reducing the possibility of flow mark defects appearing on the appearance surface of the decorative main plate 10, thereby further improving the production qualification rate of the decorative ring 100 and further reducing the production cost of the decorative ring 100.

[0078] The following explains why the greater the thickness, the faster the melt flow rate.

[0079] When the melt is injected into the decorative ring mold under certain conditions, the temperature of the melt drops sharply upon contact with the cold wall surface of the decorative ring cavity, resulting in the formation of a solidified layer. The flow area of ​​the decorative ring cavity decreases with increasing solidified layer thickness, thus the solidified layer thickness has a significant impact on flow resistance. The relationship between flowability s and the thickness h of the decorative ring cavity satisfies the following formula:

[0080] Where, η rep is the viscosity of the melt.

[0081] According to the flow formula, the flow rate *s* is directly proportional to the cube of the thickness *h*. For example, reducing the thickness *h* by 50% will reduce the flow rate *s* to one-eighth, which is equivalent to increasing the flow resistance by eight times. Therefore, the greater the thickness of the decorative ring cavity, the smaller the flow resistance, the better the flow, and the faster the flow rate.

[0082] The specific analysis and explanation of the causes of flow marks are as follows: During melt flow, the hotter melt comes into contact with the cooler mold, and the hotter melt quickly freezes on the cavity wall to form a thin solidified layer. The orientation of the metal powder in the solidified layer determines the quality of the injection molded part's appearance. Stable flow of metal powder can result in a consistent metal powder orientation, leading to a better appearance. In the injection molding of decorative ring 100, differences in wall thickness on the surface can cause flow variations, such as... Figure 8 As shown, the melt exhibits irregular flow with multiple leading edges during its flow in the cavity of the decorative main board. This manifests as localized inward indentation of the surface of the melt's flow front. In other words, the flow direction of some points on the flow front is towards the interior of the melt. Consequently, the melt's flow front continuously curls and flips inward, causing the metal powder orientation to become disordered and resulting in a self-merging state of the melt, leading to obvious flow marks on the appearance.

[0083] The principle behind reducing flow marks in this application embodiment is explained in detail below: like Figures 1 to 4As shown, in this embodiment of the decorative ring 100, a gate forming area 113 corresponding to the gate of the decorative ring mold is provided on the side of the first non-appearance surface 112 of the decorative panel 11 away from the transition connecting plate 12 along its width direction. During the injection molding process, the melt in the decorative ring cavity can flow sequentially through the decorative panel cavity, the transition connecting plate cavity, and the side plate cavity. Along the direction close to the transition connecting plate 12, the wall thickness of the decorative panel 11 remains unchanged or gradually decreases. Along the direction away from the transition connecting plate 12, the wall thickness of the side plate 13 remains unchanged or gradually decreases, and the wall thickness of the side plate 13 is less than the wall thickness of the decorative panel 11. In this way, the flow rate of the melt in the decorative panel cavity is greater than the flow rate of the melt in the side plate cavity, so that the melt in the main decorative panel cavity can have a forward convex and uniform trend (e.g., Figure 9 As shown in the figure, the melt has a clear leading edge flow. The points of the melt's flow leading edge face outwards and do not curl or flip inwards. The melt does not merge, ensuring a stable metallic texture on the appearance. This effectively reduces the possibility of flow marks appearing on the surface of the decorative main board 10, thereby improving the production qualification rate of the decorative ring 100 and reducing the production cost of the decorative ring 100.

[0084] like Figure 3 and Figure 4 As shown, in some embodiments, the junction of the transition connecting plate 12 and the side plate 13 is arc-shaped on a plane perpendicular to the length direction of the transition connecting plate 12.

[0085] For decorative ring molds, the junction of the transition connecting plate cavity and the side plate cavity is arc-shaped on a plane perpendicular to the length direction of the transition connecting plate cavity.

[0086] Understandably, for an object, on a flat surface, if the color of a certain spot differs slightly from the surrounding color, it is more easily observed by the naked eye because it creates a sharp contrast, thus forming an appearance defect. However, on a curved surface, the contrast is relatively low, and even if there is a slight color difference, it is difficult to detect visually. In other words, the same slight color difference is less likely to be detected by the naked eye on a curved surface than on a flat surface, and therefore less likely to form an appearance defect. The same applies to flow marks. Therefore, the bent transition connecting plate 12 can better improve the appearance defects of the decorative ring 100 and increase the product qualification rate of the decorative ring 100.

[0087] In some embodiments, the wall thickness of the decorative panel 11 at the end away from the transition connecting plate 12 ranges from 2 mm to 4 mm.

[0088] In the decorative ring mold, the thickness of the end of the decorative panel cavity furthest from the transition connecting plate cavity ranges from 2mm to 4mm.

[0089] For example, the wall thickness of the decorative panel 11 at the end away from the transition connecting plate 12 is a point value of any one of 2mm, 2.2mm, 2.3mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.2mm, 3.3mm, 3.5mm, 3.8mm, 4mm, or a point value between any two.

[0090] In some embodiments, the wall thickness of the decorative panel 11 near the transition connecting plate 12 ranges from 2 mm to 3.5 mm.

[0091] In the decorative ring mold, the thickness of the decorative panel cavity near the transition connecting plate cavity ranges from 2mm to 3.5mm.

[0092] For example, the wall thickness of the decorative panel 11 near the transition connecting plate 12 is any one of 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.5mm or any combination thereof.

[0093] Along the direction close to the transition connecting plate 12, the wall thickness of the decorative panel 11 remains constant or gradually decreases, and the wall thickness of the decorative panel 11 at the end away from the transition connecting plate 12 ranges from 2mm to 4mm, while the wall thickness of the decorative panel 11 at the end close to the transition connecting plate 12 ranges from 2mm to 3.5mm. This is beneficial for the decorative panel 11 to have a certain structural strength, and it is also beneficial for the melt to fill the decorative panel cavity quickly during the molding process, which facilitates the molding of the decorative panel 11.

[0094] In some embodiments, the wall thickness of the side plate 13 near the transition connecting plate 12 ranges from 1 mm to 3 mm.

[0095] In the decorative ring mold, the thickness of the side plate cavity near the transition connecting plate cavity ranges from 1mm to 3mm.

[0096] For example, the wall thickness of the side plate 13 near the transition connecting plate 12 is any one of 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.2mm, 2.3mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3mm, or a value between any two.

[0097] In some embodiments, the wall thickness of the side plate 13 at the end away from the transition connecting plate 12 ranges from 1 mm to 3 mm.

[0098] In the decorative ring mold, the thickness of the side plate cavity at the end furthest from the transition connecting plate cavity ranges from 1mm to 3mm.

[0099] For example, the wall thickness of the side plate 13 at the end away from the transition connecting plate 12 is any one of 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.2mm, 2.3mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3mm, or any value between two of them.

[0100] Along the direction away from the transition connecting plate 12, the wall thickness of the side plate 13 remains unchanged or gradually decreases. The wall thickness of the side plate 13 is less than the wall thickness of the decorative panel 11. The wall thickness range of the side plate 13 near the transition connecting plate 12 and the wall thickness range of the side plate 13 away from the transition connecting plate 12 are both 1mm to 3mm. This helps the side plate 13 to have a certain structural strength, and during the molding process, it is beneficial for the melt to fill the side plate cavity quickly, which facilitates the molding of the side plate 13.

[0101] In one specific embodiment, the wall thickness of the decorative panel 11 remains unchanged along the direction close to the transition connecting plate 12, and the wall thickness of the side plate 13 remains unchanged along the direction away from the transition connecting plate 12. The wall thickness of the side plate 13 is less than the wall thickness of the decorative panel 11. Along the direction from the decorative panel 11 to the side plate 13, the wall thickness of the transition connecting plate 12 gradually decreases and smoothly connects the decorative panel 11 and the side plate 13.

[0102] In another specific embodiment, the wall thickness of the main board gradually decreases along the direction from the decorative panel 11 to the side panel 13.

[0103] like Figures 3 to 4 As shown, in some embodiments, the decorative ring 100 includes a first reinforcing rib 20, one side surface of the first reinforcing rib 20 is connected to a first non-appearance surface 112, and the first reinforcing rib 20 is spaced apart from a second non-appearance surface 132.

[0104] For example, one side surface of the first reinforcing rib 20 is connected to the transition connecting plate 12.

[0105] Corresponding to the decorative ring mold, the decorative ring cavity includes a first reinforcing rib cavity, which is connected to the decorative panel cavity and the transition connecting plate cavity, and the first reinforcing rib cavity is spaced apart from the side plate cavity.

[0106] For example, the decorative ring 100 has a ring-shaped structure. Along the radial direction of the decorative ring 100, the main decorative plate 10 includes a decorative panel 11, a transition connecting plate 12, and a side plate 13 in sequence.

[0107] By connecting one side surface of the first reinforcing rib 20 to the first non-appearance surface 112 and the other side surface to the transition connecting plate 12, it is beneficial to improve the structural strength of the decorative main plate 10. By setting the first reinforcing rib 20 and the second non-appearance surface 132 at intervals, flow marks formed on the side plate 13 during the molding process of the decorative ring 100 can be reduced.

[0108] Understandably, the surface of the first reinforcing rib 20 is a non-visual surface, and the cavity of the first reinforcing rib is a cavity for forming the non-visual surface wall. As the previous analysis shows, when the melt flows in the cavity of the first reinforcing rib, it carries a significant amount of gas and impurities. Therefore, when the melt flows from the decorative panel cavity through the first reinforcing rib cavity to the side plate cavity, it merges with the melt flowing directly from the decorative panel cavity to the side plate cavity, creating trapped gas and noticeable weld lines, as well as flow mark defects. Therefore, by spacing the first reinforcing rib 20 and the second non-visual surface 132, the melt only flows from the decorative panel cavity through the first reinforcing rib cavity to the transition connecting plate 12, without merging with the melt flowing directly from the decorative panel cavity to the side plate cavity, thus preventing trapped gas and noticeable weld lines. Furthermore, compared to the planar side plate 13, even if flow marks exist on the curved transition connecting plate 12, they are difficult to detect with the naked eye, making it even less likely to form visual defects.

[0109] In some embodiments, the thickness of the first reinforcing rib 20 is less than or equal to 0.4 times the wall thickness of the side plate 13.

[0110] In the decorative ring mold, the thickness of the first reinforcing rib cavity is less than or equal to 0.4 times the thickness of the side plate cavity.

[0111] In some embodiments, the thickness of the first reinforcing rib 20 ranges from 0.5 mm to 2 mm.

[0112] For example, the thickness of the first reinforcing rib 20 is any one of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2mm, or any combination thereof.

[0113] In this way, the thickness of the first reinforcing rib 20 is moderate, which has good structural strength and can effectively enhance the structural strength of the decorative main board 10.

[0114] For decorative ring molds, the thickness of the first reinforcing rib cavity ranges from 0.5mm to 2mm.

[0115] For example, the thickness of the first reinforcing rib 20 is any one of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2mm, or any combination thereof.

[0116] In this way, the melt can quickly fill the cavity of the first reinforcing rib and freeze rapidly to form the first reinforcing rib 20, thereby improving the situation where the melt in the cavity of the first reinforcing rib flows back and forms a weld line with the decorative panel 11.

[0117] like Figure 6 As shown, in some embodiments, the decorative ring 100 includes a second reinforcing rib 30, which is disposed on the first non-appearance surface 112, and the angle between the extending direction of the second reinforcing rib 30 and the extending direction of the side plate 13 is in the range of 30° to 150°.

[0118] For example, the angle between the extension direction of the second reinforcing rib 30 and the extension direction of the side plate 13 is a point value of any one of 30°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 135°, 146°, and 150° or a point value between any two.

[0119] In an embodiment where the side plate 13 has a straight structure, the angle between the second reinforcing rib 30 and the straight line extending along the length direction of the side plate 13 is the angle between the extension direction of the second reinforcing rib 30 and the extension direction of the side plate 13.

[0120] In an embodiment where the side plate 13 is a ring structure, the angle between the extension direction of the second reinforcing rib 30 and the extension direction of the side plate 13 is the angle between the second reinforcing rib 30 and the tangent at the side plate 13 corresponding to the second reinforcing rib 30. The tangent at the side plate 13 corresponding to the second reinforcing rib 30 refers to the tangent at the intersection of the extension line of the second reinforcing rib 30 and the side plate 13.

[0121] Corresponding to the decorative ring mold, the decorative ring cavity includes a second reinforcing rib cavity, which is connected to the decorative panel cavity. The angle between the extension direction of the second reinforcing rib cavity and the extension direction of the side plate cavity ranges from 30° to 150°.

[0122] For example, the angle between the extending direction of the second reinforcing rib cavity and the extending direction of the side plate cavity is any one of 30°, 45°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 135°, 146°, and 150° or any value between two of them.

[0123] The specific analysis and explanation of the causes of flow marks are as follows: Please see Figure 10 During the melt flow process, the hotter melt comes into contact with the cooler decorative ring mold, and the hotter melt quickly freezes on the cavity wall to form a thin solidified layer. The orientation of the metal powder in the solidified layer determines the quality of the injection molded part's appearance. Stable flowing metal powder can form a consistent metal powder orientation, resulting in a better appearance. When the melt in the decorative panel cavity (appearance surface cavity 1000) flows through the second reinforcing rib cavity (rib cavity 2000), the flow direction of the melt in the decorative panel cavity (appearance surface cavity 1000) splits in two. One part of the melt continues to flow along its original direction, while the other part flows into the second reinforcing rib cavity (rib cavity 2000). If the second reinforcing rib cavity (rib cavity 2000) is parallel to the overall flow direction of the melt in the decorative panel cavity (appearance surface cavity 1000), the melt in the decorative panel cavity... As the molten material continues to flow into the second reinforcing rib cavity, it is prone to backflow from there into the decorative panel cavity. This backflow causes frequent impacts on the surface, and with the continuous flow of the molten material, an unstable flow field can easily form in the area of ​​the decorative panel cavity where the rib structure is located. Under the continuous action of fluid pressure, the solidified layer of the surface where the second reinforcing rib cavity is located is damaged, resulting in disordered orientation of the solidified metal powder, manifested as flow marks. In other words, the rib structure parallel to the direction of molten flow is prone to causing flow marks on the surface.

[0124] The principle behind this application's reduction of flow marks is explained in detail below: This application found: Please refer to Figures 11 to 13 When the flow direction of the melt in the second reinforcing rib cavity (rib cavity 2000) and the decorative panel cavity (appearance surface cavity 1000) is not parallel, the melt in the decorative panel cavity (appearance surface cavity 1000) can flow through the second reinforcing rib cavity (rib cavity 2000) relatively quickly, which can improve the situation of the melt in the second reinforcing rib cavity flowing back to the decorative panel cavity to a certain extent, thereby reducing flow marks.

[0125] The decorative ring mold of this application embodiment can be used to injection mold the decorative ring 100. By setting the angle between the extension direction of the second reinforcing rib cavity and the extension direction of the side plate cavity to a range of 30° to 150°, the melt in the decorative panel cavity can flow through the second reinforcing rib cavity relatively quickly during injection molding. This can reduce the probability of the melt in the second reinforcing rib cavity frequently impacting the decorative panel cavity to a certain extent, and prevent the melt in the second reinforcing rib cavity from flowing back into the decorative panel cavity to a certain extent. This ensures the stability of the flow field at the intersection of the decorative panel cavity and the second reinforcing rib cavity, thereby reducing the flow marks on the first appearance surface 111.

[0126] like Figure 5 As shown, in some embodiments, the decorative ring 100 includes a third reinforcing rib 40, which is disposed on the first non-visual surface 112. The angle between the extending direction of the third reinforcing rib 40 and the extending direction of the side plate 13 ranges from 0° to 30°. Along the width direction of the third reinforcing rib 40, at least one adhesive-reducing portion 41 is provided at the root of the third reinforcing rib 40. The thickness of the adhesive-reducing portion 41 is less than the wall thickness of the other areas of the third reinforcing rib 40 excluding the adhesive-reducing portion 41.

[0127] Corresponding to the decorative ring mold, the decorative ring cavity includes a third reinforcing rib cavity, which is connected to the decorative panel cavity. The angle between the extending direction of the third reinforcing rib cavity and the extending direction of the side plate cavity ranges from 0° to 30°. Along the width direction of the third reinforcing rib cavity, at least one protrusion is provided at the root of the third reinforcing rib cavity.

[0128] For example, the angle between the extension direction of the third reinforcing rib 40 and the extension direction of the side plate 13 can be any one of 1°, 5°, 8°, 10°, 12°, 15°, 18°, 20°, 22°, 23°, 24°, 25°, 26°, 28°, 30° or any combination thereof.

[0129] In an embodiment where the side plate 13 has a straight structure, the angle between the third reinforcing rib 40 and the straight line extending along the length direction of the side plate 13 is the angle between the extension direction of the third reinforcing rib 40 and the extension direction of the side plate 13.

[0130] In the embodiment where the side plate 13 is a ring structure, the angle between the extension direction of the third reinforcing rib 40 and the extension direction of the side plate 13 is the angle between the third reinforcing rib 40 and the tangent at the side plate 13 corresponding to the third reinforcing rib 40. The tangent at the side plate 13 corresponding to the third reinforcing rib 40 refers to the tangent at the intersection of the extension line of the third reinforcing rib 40 and the side plate 13.

[0131] The root of the third reinforcing rib 40 is the connection point between the third reinforcing rib 40 and the decorative panel 11.

[0132] Here, the thickness of the adhesive-reducing portion 41 may be less than the thickness of other areas of the third reinforcing rib 40 except for the adhesive-reducing portion 41, or the adhesive-reducing portion 41 may penetrate the third reinforcing rib 40 along the thickness direction of the third reinforcing rib 40.

[0133] In some embodiments, the thickness of the adhesive reduction portion 41 ranges from 0.1 mm to 0.7 mm.

[0134] For example, the thickness of the reduced adhesive portion 41 can be any one of 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm or any combination thereof.

[0135] In the decorative ring mold, the thickness of the third reinforcing rib cavity at the protrusion ranges from 0.1 mm to 0.7 mm, or the thickness of the third reinforcing rib cavity at the protrusion is 0 mm.

[0136] The principle behind this application's reduction of flow marks is explained in detail below: This application finds that: when at least one protrusion is provided at the root of the third reinforcing rib cavity, that is, when at least one protrusion is provided at the junction of the third reinforcing rib cavity and the decorative panel cavity, the situation of melt flowing back into the decorative panel cavity in the third reinforcing rib cavity can be improved to a certain extent, thereby reducing flow marks.

[0137] like Figure 5 As shown, in some embodiments, the spacing between adjacent adhesive-reducing portions 41 along the extending direction of the third reinforcing rib 40 ranges from 10 mm to 25 mm.

[0138] Corresponding to the decorative ring mold, along the extension direction of the third reinforcing rib cavity, the spacing between adjacent protrusions ranges from 10mm to 25mm.

[0139] For example, along the extending direction of the third reinforcing rib 40, the spacing between adjacent adhesive-reducing portions 41 can be any one of 10mm, 12mm, 15mm, 16mm, 18mm, 20mm, 22mm, 23mm, 25mm or any combination thereof.

[0140] Along the extending direction of the third reinforcing rib 40, by setting the spacing between adjacent reducing portions 41 to 10mm to 25mm, the situation of melt flowing back into the decorative panel cavity in the cavity of the third reinforcing rib is improved, thereby reducing flow marks, while also reducing the manufacturing difficulty of the mold and improving the structural strength of the third reinforcing rib 40.

[0141] like Figure 14 As shown, in some embodiments, the decorative ring 100 includes a fourth reinforcing rib 50, which is disposed on the first non-appearance surface 112 and / or the second non-appearance surface 132, and the weld line of the decorative main board 10 is located at the fourth reinforcing rib 50.

[0142] Corresponding to the decorative ring mold, the decorative ring cavity includes a fourth reinforcing rib cavity, which is connected to the decorative main board cavity. The weld line of the decorative main board 10 is located at the fourth reinforcing rib cavity.

[0143] The specific analysis and explanation of the causes of flow marks are as follows: During the molding process, weld lines are unavoidable at the confluence points of the molten material in annular or porous structures. This means the molten material easily forms an unstable flow field at the confluence point, resulting in disordered metal powder orientation and manifesting as flow marks. In the embodiment where the decorative ring 100 is annular, the molten material in the decorative main board cavity converges from different directions to form weld lines. Both the confluence angle and the confluence position are crucial. Generally, a confluence angle greater than 135° forms a weld line, while an angle less than 135° forms a melt mark. The confluence angle significantly impacts the performance and appearance of the weld line. While we can improve the appearance by adjusting the product to increase the confluence angle and position, weld lines still exist, thus affecting the aesthetics.

[0144] The principle behind this application's reduction of flow marks is explained in detail below: This application finds that by setting the weld line of the decorative main board 10 at the fourth reinforcing rib 50, the melt in the cavity of the decorative panel can flow into the cavity of the fourth reinforcing rib and merge, which can improve the formation of weld lines on the decorative main board 10 to a certain extent, thereby reducing flow marks.

[0145] In some embodiments, the thickness of the fourth reinforcing rib 50 is less than or equal to 0.4 times the wall thickness of the side plate 13.

[0146] In the decorative ring mold, the thickness of the fourth reinforcing rib cavity is less than or equal to 0.4 times the thickness of the side plate cavity.

[0147] In some embodiments, the thickness of the fourth reinforcing rib 50 ranges from 0.5 mm to 2 mm.

[0148] For example, the thickness of the fourth reinforcing rib 50 is any one of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2mm, or any combination thereof.

[0149] In this way, the thickness of the fourth reinforcing rib 50 is moderate, and it has good structural strength, which can effectively enhance the structural strength of the decorative main board 10.

[0150] For decorative ring molds, the thickness of the fourth reinforcing rib cavity ranges from 0.5mm to 2mm.

[0151] For example, the thickness of the fourth reinforcing rib 50 is any one of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, and 2mm, or any combination thereof.

[0152] In this way, the melt in the decorative main board cavity converges from different directions to the fourth reinforcing rib cavity. The melt can quickly fill the fourth reinforcing rib cavity and freeze rapidly to form the fourth reinforcing rib 50, thereby improving the situation where the melt in the fourth reinforcing rib cavity flows back and forms a weld line with the decorative panel 11.

[0153] like Figure 7 As shown, in some embodiments, the decorative ring 100 includes a support rib 60, which is disposed on the first non-appearance surface 112. On a cross-section perpendicular to the extension direction of the support rib 60, the cross-sectional shape of the support rib 60 is polygonal.

[0154] By setting the support ribs 60, it is beneficial to improve the structural strength of the decorative ring 100 and facilitate the assembly of the decorative ring 100.

[0155] The specific analysis and explanation of the causes of flow marks are as follows: The cross-sectional shape of the support rib 60 is circular. When the melt in the decorative panel cavity flows through the support rib cavity, the melt flows along the edge of the support rib cavity. Since the tangent of the melt and the circular support rib 60 is always parallel, the metal powder of the melt is prone to turbulence at this time. That is, the melt repeatedly turns between the decorative panel cavity and the support rib cavity, which makes it easier to generate gas marks and flow marks. In other words, the support rib 60 with a circular cross-sectional shape is prone to causing flow marks on the appearance surface.

[0156] The principle behind this application's reduction of flow marks is explained in detail below: This application has found that by setting the cross-sectional shape of the support rib 60 to a polygon in a cross-section perpendicular to the extension direction of the support rib 60, the flow marks generated at the junction of the support rib 60 and the decorative panel 11 can be improved to some extent.

[0157] like Figure 7 As shown, in some embodiments, a glue-reducing groove 61 is provided at the root of the support rib 60.

[0158] This application finds that when a glue-reducing groove 61 is provided at the root of the support rib 60, that is, when at least one filling part is provided at the junction of the support rib cavity and the decorative panel cavity, the situation of melt flowing back into the decorative panel cavity in the support rib cavity can be improved to a certain extent, thereby reducing flow marks.

[0159] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0160] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A door assembly for a garment processing device, characterized in that, The door assembly includes a decorative ring, which is an integrally injection-molded part. The decorative ring includes a decorative main board, which includes: The decorative panel has a first visible surface on one side along its thickness direction and a first non-visual surface on the other side. The system includes a transition connecting plate and a side plate. One side of the side plate is connected to the outer peripheral wall of the decorative panel along its width direction via the transition connecting plate. The side surface of the side plate facing away from the decorative panel in its thickness direction is a second visible surface, and the other side surface is a second non-visible surface. The first non-visible surface is provided with a gating gate forming area corresponding to the gating gate of the decorative ring mold. The wall thickness of the side panel is less than the wall thickness of the decorative panel.

2. The door assembly according to claim 1, characterized in that, Along the direction close to the transition connecting plate, the wall thickness of the decorative panel remains constant or gradually decreases; along the direction away from the transition connecting plate, the wall thickness of the side plate remains constant or gradually decreases; and / or, the injection gate forming area is located on the side of the first non-appearance surface away from the transition connecting plate along its width direction.

3. The door assembly according to claim 2, characterized in that, The wall thickness of the decorative panel at the end furthest from the transition connecting plate ranges from 2mm to 4mm; and / or, The wall thickness of the decorative panel near the transition connecting plate ranges from 2mm to 3.5mm; and / or, The wall thickness of the side plate near the transition connecting plate ranges from 1 mm to 3 mm; and / or, The wall thickness of the side plate at the end furthest from the transition connecting plate ranges from 1 mm to 3 mm.

4. The door assembly according to claim 1, characterized in that, The decorative ring includes a first reinforcing rib, one side surface of which is connected to the first non-appearance surface, and the first reinforcing rib is spaced apart from the second non-appearance surface.

5. The door assembly according to claim 4, characterized in that, The thickness of the first reinforcing rib is less than or equal to 0.4 times the wall thickness of the side plate; and / or, The thickness of the first reinforcing rib ranges from 0.5 mm to 2 mm.

6. The door assembly according to claim 1, characterized in that, The decorative ring includes a second reinforcing rib, which is disposed on the first non-surface surface. The angle between the extension direction of the second reinforcing rib and the extension direction of the side plate ranges from 30° to 150°.

7. The door assembly according to claim 1, characterized in that, The decorative ring includes a third reinforcing rib, which is disposed on the first non-appearance surface. The angle between the extending direction of the third reinforcing rib and the extending direction of the side plate ranges from 0° to 30°. Along the width direction of the third reinforcing rib, at least one adhesive-reducing portion is provided at the root of the third reinforcing rib, and the thickness of the adhesive-reducing portion is less than the wall thickness of the other areas of the third reinforcing rib excluding the adhesive-reducing portion.

8. The door assembly according to claim 7, characterized in that, Along the extending direction of the third reinforcing rib, the spacing between adjacent adhesive-reducing portions ranges from 10mm to 25mm.

9. The door assembly according to claim 7, characterized in that, The thickness of the adhesive-reducing portion ranges from 0.1 mm to 0.7 mm, or the adhesive-reducing portion penetrates the third reinforcing rib along the thickness direction of the third reinforcing rib.

10. The door assembly according to claim 1, characterized in that, The decorative ring includes a fourth reinforcing rib, which is disposed on the first non-appearance surface and / or the second non-appearance surface, and the weld line of the decorative main board is located at the fourth reinforcing rib.

11. The door assembly according to claim 10, characterized in that, The thickness of the fourth reinforcing rib is less than or equal to 0.4 times the wall thickness of the side plate; and / or, The thickness of the fourth reinforcing rib ranges from 0.5 mm to 2 mm.

12. A garment processing device, characterized in that, The garment handling device includes the door assembly as described in any one of claims 1 to 11.

13. A decorative ring mold for forming the decorative ring of the door assembly as described in claim 1, characterized in that, The decorative ring mold has a decorative ring cavity, which includes a decorative main board cavity, and the decorative main board cavity includes: The decorative panel cavity has one side wall along its thickness direction for forming a first appearance surface and the other side wall for forming a first non-appearance surface. The transition connecting plate cavity and the side plate cavity are provided. One side of the side plate cavity along its width direction is connected to the decorative panel cavity through the transition connecting plate cavity. The side wall of the side plate cavity facing away from the decorative panel cavity along its thickness direction is used to form the second appearance surface, and the other side wall is used to form the second non-appearance surface. The wall of the decorative panel cavity used to form the first non-appearance surface is provided with a gate. The thickness of the side panel cavity is less than the thickness of the decorative panel cavity.

14. The decorative ring mold according to claim 13, characterized in that, Along the direction close to the transition connecting plate cavity, the thickness of the decorative panel cavity remains constant or gradually decreases; along the direction away from the transition connecting plate cavity, the thickness of the side plate cavity remains constant or gradually decreases; and / or, the injection gate is located on the side of the decorative panel cavity used to form the first non-appearance surface, away from the transition connecting plate cavity in the width direction.

15. The decorative ring mold according to claim 13, characterized in that, The decorative ring cavity includes a first reinforcing rib cavity, which is connected to the decorative panel cavity and the transition connecting plate cavity, and the first reinforcing rib cavity is spaced apart from the side plate cavity.

16. The decorative ring mold according to claim 13, characterized in that, The decorative ring cavity includes a second reinforcing rib cavity, which is connected to the decorative panel cavity. The angle between the extending direction of the second reinforcing rib cavity and the extending direction of the side plate cavity ranges from 30° to 150°.

17. The decorative ring mold according to claim 13, characterized in that, The decorative ring cavity includes a third reinforcing rib cavity, which connects to the decorative panel cavity. The angle between the extending direction of the third reinforcing rib cavity and the extending direction of the side panel cavity ranges from 0° to 30°. Along the width direction of the third reinforcing rib cavity, at least one protrusion is provided at the root of the third reinforcing rib cavity.

18. The decorative ring mold according to claim 17, characterized in that, Along the extending direction of the third reinforcing rib cavity, the spacing between adjacent protrusions ranges from 10mm to 25mm.

19. The decorative ring mold according to claim 17, characterized in that, The thickness of the third reinforcing rib cavity at the protrusion ranges from 0.1 mm to 0.7 mm, or the thickness of the third reinforcing rib cavity at the protrusion is 0 mm.

20. The decorative ring mold according to claim 13, characterized in that, The decorative ring cavity includes a fourth reinforcing rib cavity, which is connected to the decorative main board cavity, and the weld line of the decorative main board is located at the fourth reinforcing rib cavity.

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