CN217098690U

CN217098690U - Appearance part, household appliance and mold

Info

Publication number: CN217098690U
Application number: CN202123452346.XU
Authority: CN
Inventors: 李林仕; 龙云钲; 谢武彬; 尹志雄; 阳涛; 李朝伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-02
Anticipated expiration: 2031-12-31

Abstract

The utility model provides an appearance part, a household appliance and a mould, wherein the appearance part is a spraying-free injection molding part, and an appearance part body of the appearance part comprises an end wall and an annular side wall arranged around the end wall; the end wall is not provided with a concave part and a convex part, the end wall is in an axisymmetric structure, the feeding forming area is positioned on the end wall, and the distance between the feeding forming area and the symmetry axis of the end wall is less than or equal to 100 mm; or the end wall is provided with a concave part and/or a convex part, and the feeding forming area is positioned on the non-appearance surface; the appearance piece body is provided with a first end part and a second end part which are oppositely arranged along the radial direction, when the feeding forming area is positioned on the outer end face, the linear distance between the feeding forming area and the first end part is 5 mm-50 mm, and the concave part and/or the convex part is positioned between the feeding forming area and the second end part. The utility model discloses an outward appearance part has solved the problem that the spraying injection molding of exempting from among the prior art produced appearance defects easily.

Description

Appearance part, household appliance and mold

Technical Field

The utility model relates to a domestic appliance field particularly, relates to an outward appearance part, domestic appliance and mould.

Background

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

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

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an outward appearance part, domestic appliance and mould to the spraying injection molding that exempts from among the solution prior art produces appearance defects's problem easily.

In order to achieve the above object, according to an aspect of the present invention, there is provided an appearance part, the appearance part being a spray-free injection molding, the appearance part comprising: the appearance piece body comprises an end wall and an annular side wall arranged around the end wall, and one end of the annular side wall is connected with the end wall; the appearance piece body is provided with a feeding forming area corresponding to one end of a feeding channel of the die; the end wall is not provided with a concave part and a convex part, the end wall is in an axisymmetric structure, the feeding forming area is positioned on the end wall, and the distance between the feeding forming area and the symmetry axis of the end wall is less than or equal to 100 mm; or the end wall is provided with a sunken part and/or a raised part, at least part of the outer annular wall surface of the annular side wall is an appearance surface, at least part of the outer end surface of the end wall, the inner annular wall surface of the annular side wall and the annular end surface of the annular side wall far away from the end wall are non-appearance surfaces, and the feeding forming area is positioned on the non-appearance surfaces; the appearance piece body is provided with a first end part and a second end part which are oppositely arranged along the radial direction, when the feeding forming area is positioned on the outer end face, the linear distance between the feeding forming area and the first end part is 5 mm-50 mm, and the concave part and/or the convex part is positioned between the feeding forming area and the second end part.

Further, when the end wall is not provided with the recess and the protrusion, the feed forming zone is arranged axisymmetrically with respect to the axis of symmetry.

Further, when the end wall is not provided with the concave part and the convex part, the outer side end face of the end wall is an appearance face, and the outer annular wall face of the annular side wall is a non-appearance face; or the outer annular wall surface is an appearance surface, and the outer end surface is a non-appearance surface; or both the outer side end surface and the outer annular wall surface are appearance surfaces.

Further, the end wall has an outer end face and an inner end face which are oppositely arranged, and when the end wall is not provided with the concave part and the convex part, the feeding forming area is positioned on the outer end face or the inner end face.

Furthermore, the end wall is provided with an outer end face and an inner end face which are oppositely arranged, the outer end face is an appearance face, the inner end face is a non-appearance face, and the feeding forming area is positioned on the outer end face; the appearance part also comprises a first covering part which is covered on the feeding forming area.

Furthermore, the end wall is provided with an outer end face and an inner end face which are oppositely arranged, the outer end face is an appearance face, and the inner end face is a non-appearance face; the feeding forming area is positioned on the end surface of the inner side; the appearance part also comprises a second covering part which covers the outer side end face to cover the gate lines on the outer side end face.

Further, the appearance body comprises a first structural body and a second structural body connected with the first structural body, when the appearance body is installed on the household appliance, the first structural body is positioned on the front side of the household appliance, and the second structural body is positioned on the back side of the household appliance; when the end wall is provided with a concave part and/or a convex part, the feeding forming area is positioned on the first structure body; the first end portion is at least part of the first structural body.

Further, when the feeding forming area is located on the end face of the outer side, the first end portion, the feeding forming area and the second end portion are sequentially arranged at intervals along a first preset direction, and the feeding forming area is located in the middle of the first structure body in the direction perpendicular to the first preset direction; when the feeding forming area is located on the inner annular wall surface or the annular end surface, the feeding forming area is located in the middle of the first structure body in the circumferential direction of the first structure body.

Furthermore, when the end wall is provided with a concave part and/or a convex part and the feeding forming area is positioned on the inner annular wall surface or the annular end surface, the feeding channel comprises a pouring gate and a transition feeding channel, and the pouring gate is communicated with a cavity of the mold through the transition feeding channel; the feeding forming area is arranged corresponding to the opening at one end of the transition feeding channel.

Further, the appearance component includes a transition structure shaped by the transition feed channel, the transition structure having a gate shaped region for corresponding to the gate.

Furthermore, when the end wall is provided with a concave part and/or a convex part and the feeding molding area is positioned on the end wall or the outer annular wall surface, the feeding channel comprises a pouring gate, and the feeding molding area and the pouring gate are arranged correspondingly; the length of the feeding forming area along the length direction is more than or equal to 8 mm; and/or the width of the feeding forming area along the width direction ranges from 0.8mm to 2 mm.

Further, when the outer end face is provided with a concave part and/or a convex part, the outer end face is provided with a first through hole to slow down the flowing speed of the injection melt on the outer end face, so that the injection melt preferentially fills the outer annular wall surface; and/or the outer side end face is provided with a groove to slow down the flow speed of the injection melt on the outer side end face, so that the injection melt preferentially fills the outer annular wall face.

Further, the width of the appearance body in the radial direction thereof is less than or equal to 400 mm; the length of the outer body in the axial direction thereof is less than or equal to 400mm, and the outer body has a feed molding region.

Further, the joint of the outer annular wall surface and the outer end surface of the annular side wall is provided with an arc transition.

Furthermore, the concave part is a second groove or a second through hole, and the convex part is a screw column or a rib.

Further, the appearance part is made of a spraying-free material, and the spraying-free material comprises a base material and particles distributed in the base material; wherein, the base material is a thermoplastic polymer material; the particles are at least one of metal particles, pearl powder and fibers.

Furthermore, the appearance surface of the appearance piece body is provided with a wire drawing pattern, and the extending direction of the wire drawing pattern is parallel to the flowing direction of the injection molding melt.

According to another aspect of the present invention, there is provided a household appliance, comprising an appearance component, wherein the appearance surface of the appearance component forms at least part of the appearance surface of the household appliance, and the appearance component is the above appearance component.

According to another aspect of the present invention, there is provided a mold having a cavity for forming the above-mentioned appearance part, the mold further having a feed passage, one end of the feed passage being communicated with the cavity.

Further, the feeding channel comprises a pouring gate and a transition feeding channel, and the pouring gate is communicated with the cavity through the transition feeding channel.

Further, the feeding channel comprises a pouring gate, the pouring gate is communicated with the cavity, and the pouring gate is a fan-shaped pouring gate.

Furthermore, the mould is also provided with a buffer runner and a melt inlet, wherein the first end of the buffer runner is communicated with the melt inlet, and the buffer runner is communicated with one end of the feeding channel, which is far away from the cavity, so that the injection molding melt sequentially flows through the melt inlet, the buffer runner and the feeding channel and then enters the cavity; wherein, the buffer flow channel is a bending flow channel.

The utility model discloses an appearance part adopts and exempts from the spraying technique to make, and this appearance part is injection moulding goods and is made by exempting from the spray material, and this appearance part includes outward appearance spare body, and outward appearance spare body includes the end wall and encircles the annular lateral wall that the end wall set up, and outward appearance spare body has the feeding shaping district that is used for corresponding with the one end of the feedstock channel of mould. When the end wall is not provided with the concave part and the convex part, the feeding forming area is positioned on the end wall, and the distance between the feeding forming area and the symmetry axis of the end wall is smaller than or equal to 100mm, so that the distance between the feeding forming area and the symmetry axis of the end face of the outer side is smaller than or equal to 100mm, the periphery glue feeding tends to be balanced, and appearance defects such as flow marks, welding marks and the like are reduced. When the end wall is provided with the concave part and/or the convex part, the feeding forming area is positioned on the non-appearance surface; when the feeding forming area is located on the outer end face, the minimum distance between the feeding forming area and the first end portion is 5 mm-50 mm, and the concave portion and/or the convex portion is located between the feeding forming area and the second end portion, so that the outer side annular wall face can be guaranteed to be filled preferentially, otherwise, the injection molding melt flows through the outer end face and then reaches the outer side annular wall face, and a weld line and a flow mark generated by the concave portion, the convex portion and other features on the outer side annular wall face are carried to appear on the appearance face. It is thus clear that the setting in this outward appearance part's feeding shaping district is located and avoids appearing on the in-process outward appearance face of moulding plastics appearance defects such as flow mark and weld mark, has solved the problem that exempt from the spraying injection molding to produce appearance defects easily.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an axonometric view of a first embodiment of an appearance element according to the invention;

fig. 2 shows an exploded view of a first embodiment of a facade element body and a first covering according to the present invention;

fig. 3 shows a front view of a first embodiment of an appearance element according to the invention;

fig. 4 shows a side view of a first embodiment of an appearance element according to the invention;

fig. 5 shows a bottom view of a first embodiment of an appearance element according to the invention;

fig. 6 shows a cross-sectional view at section G-G of the appearance part in fig. 5;

fig. 7 shows an isometric view of an angle of a second embodiment of an appearance element according to the invention;

fig. 8 shows an isometric view from another angle of a second embodiment of an appearance element according to the invention;

fig. 9 shows a top view of a second embodiment of an appearance element according to the invention;

fig. 10 shows a cross-sectional view at section H-H of the appearance part in fig. 9;

fig. 11 shows a side view of a second embodiment of an appearance element according to the invention;

fig. 12 shows an axonometric view of a third embodiment of an appearance element according to the invention;

fig. 13 shows a top view of a third embodiment of an appearance element according to the invention;

fig. 14 shows a cross-sectional view at a-a section of the appearance part in fig. 13;

fig. 15 shows a front view of a third embodiment of an appearance element according to the invention; and

fig. 16 shows a side view of a third embodiment of an appearance element according to the invention.

Wherein the figures include the following reference numerals:

10. an appearance piece body; 11. an end wall; 111. an outer end face; 112. an inner side end surface; 12. an annular sidewall; 121. an outer annular wall surface; 122. an inner annular wall surface; 123. an annular end face; 13. a first end portion; 14. a second end portion; 15. a first structure body; 16. a second structural body; 20. a feed channel; 21. a gate; 30. a feed forming zone; 50. a first through hole; 60. a groove; 70. a second through hole; 90. a melt inlet; 100. welding lines; 110. a first cover member.

Detailed Description

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

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

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

The utility model provides an appearance part please refer to fig. 1 to 16, and appearance part is the spraying injection molding of exempting from, and appearance part includes: a design body 10 including an end wall 11 and an annular side wall 12 disposed around the end wall 11, one end of the annular side wall 12 being connected to the end wall 11; the outer body 10 has a feed molding zone 30 for corresponding to one end of the feed passage 20 of the mold; the outer side end face 111 of the end wall 11 is not provided with a concave part and a convex part, the end wall 11 is in an axisymmetric structure, the feeding forming area 30 is positioned on the end wall 11, and the distance between the feeding forming area 30 and the symmetry axis of the end wall 11 is less than or equal to 100 mm; or, the end wall 11 is provided with a recess and/or a protrusion, at least a portion of the outer annular wall surface 121 of the annular side wall 12 is a design surface, at least a portion of the outer end surface 111 of the end wall 11, an inner end surface of the end wall 11, an inner annular wall surface 122 of the annular side wall 12, and an annular end surface 123 of the annular side wall 12 far away from the end wall 11 are all non-design surfaces, and the feed forming zone 30 is located on the non-design surfaces; the outer appearance body 10 has a first end 13 and a second end 14 disposed oppositely in a radial direction thereof, a linear distance between the feed molding zone 30 and the first end 13 is 5mm to 50mm when the feed molding zone 30 is located on the outer end surface 111, and a concave portion and/or a convex portion is located between the feed molding zone 30 and the second end 14.

The utility model discloses an appearance part adopts and exempts from the spraying technique to make, and this appearance part is injection moulding goods and is made by exempting from the spray material, and this appearance part includes outward appearance body 10, and outward appearance body 10 includes end wall 11 and encircles the annular lateral wall 12 that end wall 11 set up, and outward appearance body 10 has the corresponding feeding shaping district 30 of one end that is used for with the feedstock channel 20 of mould. When the end wall 11 is not provided with the concave part and the convex part, the feeding forming area 30 is positioned on the end wall 11 and the distance between the feeding forming area 30 and the symmetry axis of the end wall 11 is less than or equal to 100mm, so that the distance between the feeding forming area 30 and the symmetry axis of the outer end surface 111 is less than or equal to 100mm, the circumferential glue feeding tends to be balanced, and appearance defects such as flow marks, welding marks and the like are reduced. When the end wall 11 is provided with recesses and/or projections, the feed-forming zone 30 is located on the non-exterior surface; when the feeding forming area 30 is located on the outer side end surface 111, the minimum distance between the feeding forming area 30 and the first end portion 13 is 5mm to 50mm, and the concave portion and/or the convex portion is located between the feeding forming area 30 and the second end portion 14, so that the outer side annular wall surface 121 can be ensured to be filled preferentially, otherwise, the injection molding melt flows through the outer side end surface 111 and then reaches the outer side annular wall surface 121, and a weld line and a flow mark generated by carrying the concave portion, the convex portion and other features on the outer side annular wall surface 121 appear on the appearance surface. It can be seen that the arrangement of the feeding molding area 30 of the appearance part avoids appearance defects such as flow marks and weld marks on the appearance surface in the injection molding process, and the problem that the spraying-free injection molding part is easy to cause appearance defects is solved.

In addition, the above arrangement enables weld lines to appear on the back side, which weld lines are not readily visible to a user when the product is in use.

The spraying-free injection molding part has unique light and shadow effect and metallic luster after being molded, can achieve the appearance effect which is comparable to or superior to spraying without secondary treatment, and has the advantages of excellent function, low cost, environmental protection and the like.

It should be noted that, when the appearance part is injection molded by using the mold, the cavity of the mold is used for molding the appearance part, the feeding channel 20 is communicated with the cavity, the material in the feeding channel 20 forms a feeding molding part, and the region where the appearance part is connected with the feeding molding part is the feeding molding region 30. The phrase "the feeding and forming area 30 corresponding to one end of the feeding channel 20 of the mold" means that the feeding and forming area 30 corresponds to an opening of one end of the feeding channel 20, and the shape and size of the opening of the feeding and forming area 30 and one end of the feeding channel 20 are the same.

When the appearance component is applied to the household appliance, the appearance surface is a component of the appearance of the household appliance, that is, the appearance surface is a surface exposed in an application environment and visible to a user; the non-exterior surface is located inside the household appliance, i.e. the non-exterior surface is a surface hidden inside the household appliance and not visible to a user.

The fact that no recess or no projection is provided on the outer end surface 111 of the end wall 11 means that neither recess nor projection is provided on the outer end surface 111, that is, no other structural feature is provided on the outer end surface 111, and the surface is smooth.

The recess may be a groove or an opening.

It should be noted that the linear distance between the infeed shaping region 30 and the first end 13 is the minimum of the distances between the infeed shaping region 30 and the first end 13. The distance between the infeed shaping region 30 and the axis of symmetry of the end wall 11 is less than or equal to 100mm, i.e. the maximum distance between the infeed shaping region 30 and the axis of symmetry of the end wall 11 is less than or equal to 100 mm.

In one embodiment, when the end wall 11 is not provided with the recessed portion and the protruding portion, the annular side wall 12 has a hollow cylindrical structure and also has a circular ring-shaped structure, and the annular side wall 12 is symmetrically arranged with respect to the symmetry axis.

In one embodiment, the infeed forming zone 30 is disposed axisymmetrically with respect to the axis of symmetry when no depressions or protrusions are provided on the end wall 11. Such setting can guarantee completely that the border advances to glue balanced, and then avoids appearing on the in-process outward appearance face of moulding plastics appearance defects such as flow mark and weld mark.

In one embodiment, when the end wall 11 is not provided with the recessed portion and the raised portion, the outer side end surface 111 is an appearance surface, and the outer annular wall surface 121 of the annular side wall 12 is a non-appearance surface; alternatively, the outer annular wall surface 121 is an appearance surface, and the outer end surface 111 is a non-appearance surface; alternatively, the outer end surface 111 and the outer annular wall surface 121 are both exterior surfaces.

In one embodiment, the end wall 11 has an outboard end surface 111 and an inboard end surface 112 disposed opposite each other, and the feed forming zone 30 is located on either the outboard end surface 111 or the inboard end surface 112 when no depressions or protrusions are disposed on the end wall 11.

In one embodiment, the end wall 11 has an outboard end surface 111 and an inboard end surface 112 disposed opposite each other, the outboard end surface 111 being an appearance surface, the inboard end surface 112 being a non-appearance surface, the feed forming zone 30 being located on the outboard end surface 111; the design element further includes a first cover member 110, the first cover member 110 being placed over the infeed molding zone 30. The first cover member 110 is provided to cover the charge forming region 30 and the gate line.

In another embodiment, the end wall 11 has an outboard end surface 111 and an inboard end surface 112 disposed opposite to each other, the outboard end surface 111 being a cosmetic end surface, the inboard end surface 112 being a non-cosmetic end surface; the feed shaping zone 30 is located on the inboard end face 112; the appearance part further includes a second covering member that covers the outside end surface 111 to cover the gate lines on the outside end surface 111. The second covering part can be arranged to block the gate lines.

In another embodiment, the appearance body 10 includes a first structure body 15 and a second structure body 16 connected to the first structure body 15, the first structure body 15 is located at the front side of the home appliance and the second structure body 16 is located at the back side of the home appliance when the appearance body 10 is mounted on the home appliance; when the end wall 11 is provided with recesses and/or projections, the feed-forming zone 30 is located on the first structural body 15; the first end portion 13 is at least a part of the first structure body 15. It should be noted that the front side of the household appliance is a part of the household appliance which is arranged towards the user; the back of the household appliance is a part of the household appliance which is arranged back to the user. When the feeding forming area 30 is located on the annular side wall 12, the feeding forming area 30 is located on the annular side wall 12 of the first structure body 15, so that the welding line 100 can be ensured to appear on the outer annular wall surface 121 of the second structure body 16 during the injection molding melt filling, as shown in fig. 13, the first structure body 15 and the second structure body 16 are arranged in sequence along the y direction; when the feeding forming area 30 is located on the outer side end surface 111, the feeding forming area 30 is located on the outer side end surface 111 of the first structure body 15, so that the welding line 100 can be ensured to appear on the outer annular wall surface 121 of the second structure body 16 when the injection melt is filled, and as shown in fig. 9, the first structure body 15 and the second structure body 16 are arranged in sequence along the x direction; therefore, the welding line 100 is arranged on the back of the household appliance and is not easy to see by a user, and the appearance effect of the household appliance is improved.

Alternatively, when the feeding forming zone 30 is located on the outer side end surface 111, the first end portion 13, the feeding forming zone 30 and the second end portion 14 are sequentially arranged at intervals along the first preset direction, and the feeding forming zone 30 is located in the middle of the first structure body 15 in the direction perpendicular to the first preset direction. Due to the arrangement, the welding line 100 is arranged in the middle of the outer annular wall surface 121 of the second structural body 16, the welding line 100 is further ensured to be positioned at a place which is not easy to see by a user, and the appearance effect of the household appliance is improved. Wherein the first predetermined direction is the x direction shown in fig. 9.

Alternatively, when the feed forming zone 30 is located on the inner annular wall surface 122 or the annular end surface 123, the feed forming zone 30 is located in the middle of the first structural body 15 in the circumferential direction of the first structural body 15.

Specifically, when the end wall 11 is provided with a recess and/or a protrusion, and the feeding molding zone 30 is located on the inner annular wall surface 122 or the annular end surface 123, the feeding channel 20 includes a gate 21 and a transition feeding channel, and the gate 21 is communicated with the cavity of the mold through the transition feeding channel; the feed shaping zone 30 is arranged corresponding to the opening at one end of the transition feed channel; wherein, the annular side wall 12 includes an outer annular wall 121 and an inner annular wall 122 which are oppositely arranged, one end of the annular side wall 12 away from the end wall 11 has an annular end face 123, both the inner annular wall 122 and the annular end face 123 are non-exterior faces, and the feeding forming area 30 is located on the inner annular wall 122 or the annular end face 123. This arrangement allows the sprue pattern to appear on the transition structure formed by the material in the transition feed channel and not on the appearance of the strip structure.

In another embodiment, the appearance part comprises a transition structure shaped by a transition feed channel, the transition structure having a gate shaped area for corresponding to the gate 21. It should be noted that, in this embodiment, the appearance component includes a transition structure, and the transition structure has a gate forming region thereon, so that gate lines appear on the transition structure and do not appear on the appearance surface of the stripe structure. Of course, in other embodiments, the transition structure may be cut away, and the feeding-material forming area 30 is a cut area after the transition structure is cut away.

In another embodiment, when the end wall 11 is provided with a recess and/or a protrusion, and the feeding forming area 30 is located on the end wall 11 or the outer annular wall surface 121, the feeding channel 20 includes a gate 21, and the feeding forming area 30 is located corresponding to the gate 21; the length of the feed shaping zone 30 along its length is greater than or equal to 8 mm; and/or the width of the feed material forming zone 30 along its width may range from 0.8mm to 2 mm. Wherein, the length direction of the feeding molding zone 30 is the width direction of the gate 21, i.e. the direction perpendicular to the mold opening direction of the mold; the width direction of the feeding molding zone 30 is the thickness direction of the gate 21, i.e. the mold opening direction of the mold. The arrangement can ensure the low-flow-rate flow of the injection melt and easily remove a gate forming part formed by the material in the gate 21.

Optionally, when the outer end surface 111 is provided with a concave portion and/or a convex portion, the outer end surface 111 is provided with a first through hole 50 to slow down the flow speed of the injection melt at the outer end surface 111, so that the injection melt preferentially fills the outer annular wall surface 121; and/or, the outer end surface 111 is provided with a groove 60 to slow down the flow rate of the injection melt at the outer end surface 111 so that the injection melt preferentially fills the outer annular wall surface 121. Thus, when the outer end surface 111 is provided with the hollowed feature of the first through hole 50, the flowing speed of the injection melt on the outer end surface 111 can be slowed down, and the outer annular wall surface 121 is ensured to be filled preferentially, otherwise, the injection melt flows through the outer end surface 111 and then reaches the outer annular wall surface 121, and a weld line and a flow mark generated by the feature of the hole on the outer end surface 111 are carried on a curved surface; when the outside end surface 111 is provided with the thinning feature of the groove 60, the flowing speed of the injection melt on the outside end surface 111 can be slowed down, and the outside annular wall surface 121 is ensured to be filled preferentially, otherwise, the injection melt flows through the outside end surface 111 and then reaches the outside annular wall surface 121, and a welding line and a flow mark which are generated by the feature of the groove 60 on the outside end surface 111 appear on the outside annular wall surface 121.

In the present embodiment, the width of the exterior body 10 in the radial direction thereof is less than or equal to 400 mm; the length of the design body 10 in the axial direction thereof is less than or equal to 400mm, and the design body 10 has a feed molding zone 30. Such an arrangement can avoid appearance defects such as flow marks, weld marks, gate marks, etc., which are caused by the mutual influence of the flows of the multiple strands of injection-molded melt when the plurality of feed molding zones 30 are provided.

In the present embodiment, the outer annular wall surface 121 of the annular sidewall 12 is connected to the outer end surface 111 with an arc transition. The arrangement can perform flow buffering, avoid right-angle collision and avoid appearance defects such as flow marks, welding marks and the like.

In this embodiment, the recess is a second groove or a second through hole 70, and the protrusion is a screw post or a rib.

In this embodiment, the appearance member is made of a spray-free material including a base material and particles distributed in the base material; wherein, the base material is a thermoplastic polymer material; the particles are at least one of metal particles, pearl powder and fibers.

Optionally, the metal particles are aluminum or copper.

Optionally, the fibers are nylon or natural fibers.

In this embodiment, the design surface of the design body 10 is provided with a drawing line, and the extending direction of the drawing line is parallel to the flowing direction of the injection molding melt. If the appearance surface has flow marks, the direction of the flow marks is the same as the flowing direction, the extending direction of the wire drawing lines is parallel to the flowing direction of the melt, so that the flow marks can be covered by the lines of the wire drawing lines, and the flow marks have the function of covering.

The surface drawing is a surface treatment means for providing a decorative effect by forming lines on the surface of the exterior part by surface drawing.

Specifically, when the outer end surface 111 of the end wall 11 is not provided with the recessed portion and the raised portion, the feed channel 20 includes a gate 21, and the feed molding zone 30 is provided corresponding to the gate 21.

It should be noted that the form, structure and size of the gates 21 in the above-described different embodiments of the present application may be the same or different.

In other embodiments, the appearance surface has a first feeding forming area, and the appearance part covers or fades the first feeding forming area in the forms of labeling, silk-screen printing, laser engraving and the like due to the sprue grains generated at the first feeding forming area. Wherein the first infeed forming zone and the infeed forming zone appear on the appearance member by the same embodiment.

In other embodiments, the appearance surface has flow marks, and the flow marks on the appearance surface are covered or diluted in the forms of decorative concave-convex marks, sun lines, labels, silk screen printing, laser engraving and the like.

In other embodiments, the appearance surface has weld lines, and the weld lines on the appearance surface are covered or diluted by using decorative concave-convex marks, sun lines, labels, silk screen printing, laser engraving and the like.

The utility model also provides a household appliance, including the outward appearance part, the outward appearance face of outward appearance part forms domestic appliance's at least partial outward appearance face, and wherein, the outward appearance part is the outward appearance part in above-mentioned embodiment.

The utility model also provides a mould, wherein, the mould has the die cavity that is used for forming the outward appearance part in above-mentioned embodiment, and the mould still has feedstock channel 20, and feedstock channel 20's one end is linked together with the die cavity.

Specifically, when the outer end surface 111 is provided with a recess and/or a protrusion, and the feeding molding zone 30 is located on the annular side wall 12, the feeding channel 20 includes a gate 21 and a transition feeding channel, and the gate 21 is communicated with the cavity through the transition feeding channel.

Specifically, when the concave portion and/or the convex portion are/is provided on the outer end surface 111, and the feeding molding zone 30 is located on the outer end surface 111, the feeding channel 20 includes a gate 21, the gate 21 is communicated with the cavity, and the gate 21 is a fan gate. The arrangement can ensure the low-flow-rate flow of the injection melt and easily remove the gate forming part formed by the material in the gate 21.

Specifically, the one end that runner 21 and die cavity are linked together has first intercommunication mouth, and first intercommunication mouth corresponds with feeding shaping district 30, and first intercommunication mouth is greater than or equal to 8mm in the width direction's of runner 21 size, and the value range of first intercommunication mouth in the thickness direction of runner 21 is between 0.8mm to 2 mm. The thickness direction of the gate 21 is the mold opening direction of the mold, and the width direction of the gate 21 is the direction perpendicular to the mold opening direction of the mold. It should be noted that the range of values between 0.8mm and 2mm includes values of 0.8mm and 2 mm.

In this embodiment, the mold further has a buffer runner and a melt inlet 90, a first end of the buffer runner is communicated with the melt inlet 90, and the buffer runner is communicated with one end of the feeding channel 20 away from the cavity, so that the injection molding melt sequentially flows through the melt inlet 90, the buffer runner and the feeding channel 20 and then enters the cavity; wherein, the buffer flow channel is a bending flow channel. The arrangement of the buffer runner plays a role in buffering the injection molding melt.

The buffer flow channel is a bent flow channel, namely the axis of the buffer flow channel is a curve.

Optionally, the buffer flow passage is an arc flow passage, that is, the axis of the buffer flow passage is an arc.

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

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

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

Claims

1. An appearance component, wherein the appearance component is a spray-free injection molded part, the appearance component comprising:

a design body (10) comprising an end wall (11) and an annular side wall (12) disposed around the end wall (11), one end of the annular side wall (12) being connected to the end wall (11); the appearance body (10) is provided with a feeding forming area (30) corresponding to one end of a feeding channel (20) of the die;

the end wall (11) is not provided with a concave part and a convex part, the end wall (11) is of an axisymmetric structure, the feeding forming area (30) is positioned on the end wall (11), and the distance between the feeding forming area (30) and the symmetry axis of the end wall (11) is less than or equal to 100 mm; or

The end wall (11) is provided with a concave part and/or a convex part, at least part of an outer annular wall surface (121) of the annular side wall (12) is an appearance surface, at least part of an outer end surface (111) of the end wall (11), an inner end surface of the end wall (11), an inner annular wall surface (122) of the annular side wall (12) and an annular end surface (123) of the annular side wall (12) far away from the end wall (11) are non-appearance surfaces, and the feeding forming area (30) is located on the non-appearance surfaces; the appearance body (10) is provided with a first end part (13) and a second end part (14) which are oppositely arranged along the radial direction, when the feeding forming area (30) is positioned on the outer side end surface (111), the linear distance between the feeding forming area (30) and the first end part (13) is 5 mm-50 mm, and the concave part and/or the convex part are/is positioned between the feeding forming area (30) and the second end part (14).

2. The appearance element according to claim 1, characterized in that the infeed shaping zone (30) is arranged axisymmetrically with respect to the axis of symmetry, when no recesses and no projections are provided on the end wall (11).

3. The exterior member according to claim 1, wherein when no recess or projection is provided on the end wall (11), the outer end surface (111) of the end wall (11) is an exterior surface, and the outer annular wall surface (121) of the annular side wall (12) is a non-exterior surface; or

The outer annular wall surface (121) is an appearance surface, and the outer end surface (111) is a non-appearance surface; or

The outer end surface (111) and the outer annular wall surface (121) are both appearance surfaces.

4. The appearance element according to claim 1, characterized in that said end wall (11) has said lateral end face (111) and an inner end face (112) arranged opposite, said feeding forming zone (30) being located on said lateral end face (111) or on said inner end face (112) when no recesses and protrusions are arranged on said end wall (11).

5. The appearance element according to claim 1, wherein said end wall (11) has said outer end face (111) and inner end face (112) disposed opposite to each other, said outer end face (111) being an appearance face, said inner end face (112) being a non-appearance face, said feed-forming zone (30) being located on said outer end face (111);

the appearance element further comprises a first covering member (110), the first covering member (110) being provided over the feed-forming zone (30).

6. The appearance element according to claim 1, wherein said end wall (11) has said outer end face (111) and inner end face (112) disposed opposite to each other, said outer end face (111) being an appearance face and said inner end face (112) being a non-appearance face; the infeed shaping zone (30) being located on the inboard end face (112);

the appearance part further comprises a second covering piece which covers the outer side end face (111) to cover the gate lines on the outer side end face (111).

7. The appearance element according to claim 1, characterized in that said appearance body (10) comprises a first structural body (15) and a second structural body (16) connected to said first structural body (15), said first structural body (15) being located on the front face of the household appliance and said second structural body (16) being located on the rear face of the household appliance when said appearance body (10) is mounted on the household appliance;

-said feeding and forming zone (30) is located on said first structure (15) when recesses and/or projections are provided on said end wall (11); the first end (13) is at least part of the first structure (15).

8. The appearance element according to claim 7, wherein, when said feeding forming zone (30) is located on said lateral end face (111), said first end portion (13), said feeding forming zone (30) and said second end portion (14) are arranged in sequence at intervals along a first preset direction, said feeding forming zone (30) being located in the middle of said first structural body (15) in a direction perpendicular to said first preset direction;

the feed forming zone (30) is located in the middle of the first structural body (15) in the circumferential direction of the first structural body (15) when the feed forming zone (30) is located on the inner annular wall surface (122) or the annular end surface (123).

9. -appearance element according to claim 1, characterized in that, when recesses and/or projections are provided on the end wall (11) and the feed-forming zone (30) is located on the inner annular wall surface (122) or on the annular end surface (123), the feed channel (20) comprises a gate (21) and a transitional feed channel, through which the gate (21) communicates with the cavity of the mould; the feeding forming area (30) is arranged corresponding to an opening at one end of the transition feeding channel.

10. The appearance element according to claim 9, characterized in that it comprises a transition structure shaped by said transition feed channel, said transition structure having a gate-shaped zone for corresponding to said gate (21).

11. -appearance element according to claim 1, characterized in that on the end wall (11) recesses and/or projections are provided, and in that the feed-forming zone (30) is located on the end wall (11) or on the outer annular wall surface (121), the feed channel (20) comprises a gate (21), the feed-forming zone (30) being provided in correspondence of the gate (21);

the length of the feed shaping zone (30) in the direction of its length is greater than or equal to 8 mm; and/or the width of the feeding forming area (30) along the width direction thereof ranges from 0.8mm to 2 mm.

12. The appearance element according to claim 1, wherein, when a recess and/or a projection is provided on the outer end surface (111),

the outer side end face (111) is provided with a first through hole (50) to slow down the flow speed of the injection melt on the outer side end face (111) so that the injection melt can preferentially fill the outer annular wall face (121); and/or the presence of a gas in the gas,

the outer side end face (111) is provided with a groove (60) to slow down the flow speed of the injection melt on the outer side end face (111) so that the injection melt preferentially fills the outer annular wall face (121).

13. The appearance element according to any one of claims 1 to 12, characterized in that the width of the appearance body (10) in its radial direction is less than or equal to 400 mm; the length of the outer body (10) in the axial direction thereof is less than or equal to 400mm, and the outer body (10) has one of the feed-forming regions (30).

14. The appearance element according to any one of claims 1 to 12, characterized in that the junction of the outer annular wall surface (121) of the annular side wall (12) and the outer end surface (111) has a circular arc transition.

15. The appearance element according to any one of claims 1 to 12, wherein the recess is a second groove or a second through hole (70) and the projection is a screw stud or a rib.

16. The appearance element according to any one of claims 1 to 12, characterized in that the appearance surface of the appearance body (10) is provided with a drawing grain, the extension direction of which is parallel to the flow direction of the injection-molded melt.

17. A household appliance comprising an appearance component, the appearance surface of which forms at least part of the appearance surface of the household appliance, characterized in that the appearance component is an appearance component according to any one of claims 1 to 16.

18. A mold having a cavity for forming the exterior part of any one of claims 1 to 16, the mold further having a feed passage (20), one end of the feed passage (20) communicating with the cavity.

19. Mould according to claim 18, characterized in that the appearance part is an appearance part according to claim 9, the feed channel (20) comprising a gate (21) and a transitional feed channel, the gate (21) communicating with the mould cavity through the transitional feed channel.

20. The mold according to claim 18, characterized in that the appearance part is the appearance part of claim 11, the feed channel (20) comprises a gate (21), the gate (21) communicating with the cavity, the gate (21) being a fan gate.