CN219592801U - Annular shell and die - Google Patents

Abstract

The utility model provides an annular shell and a die. The annular housing includes: the shell body is a spraying-free injection molding piece, and is provided with an appearance surface and a non-appearance surface, wherein the appearance surface comprises an assembly surface, and the non-appearance surface is provided with a pouring gate forming area corresponding to a feeding channel of a die; the decoration piece is arranged on the assembly surface; the gate forming areas are arranged at intervals along the circumferential direction of the annular shell, the gate forming areas comprise a first gate forming area, a second gate forming area and a third gate forming area, the second gate forming area is located between the first gate forming area and the third gate forming area, the second gate forming area comprises at least two sub gate forming areas respectively located on two sides of the first gate forming area, the first gate forming area is cast before the second gate forming area, and the second gate forming area is cast before the third gate forming area. The utility model solves the problem that the appearance attractiveness is affected by the existence of a plurality of welding lines on the annular shell in the prior art.

Description

Annular shell and die

Technical Field

The utility model relates to the technical field of household appliances, in particular to an annular shell and a die.

Background

At present, the annular shell is assembled by annular parts and decorative parts, and the annular parts are injection-molded by spraying-free materials.

However, in the injection molding process using the spraying-free material, a plurality of pouring structures are designed on the annular part, and when the pouring structures are used for injection molding, a plurality of welding lines exist on the appearance surface, so that the appearance effect is affected.

Disclosure of Invention

The utility model mainly aims to provide an annular shell and a die, which are used for solving the problem that the appearance attractiveness is affected due to the fact that a plurality of welding lines exist on the annular shell in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided an annular housing comprising: the shell body is a spraying-free injection molding piece, and is provided with an appearance surface and a non-appearance surface, wherein the appearance surface comprises an assembly surface, and the non-appearance surface is provided with a pouring gate forming area corresponding to a feeding channel of a die; the decoration piece is arranged on the assembly surface; the multiple gate forming areas are arranged at intervals along the circumferential direction of the annular shell, the multiple gate forming areas comprise a first gate forming area, a second gate forming area and a third gate forming area, the second gate forming area is located between the first gate forming area and the third gate forming area, the second gate forming area comprises at least two sub gate forming areas located on two sides of the first gate forming area respectively, the first gate forming area is cast before the second gate forming area, and the second gate forming area is cast before the third gate forming area.

Further, the fitting surface is provided corresponding to the gate molding region.

Further, the feeding channel comprises a pouring gate, the pouring gate is communicated with the cavity of the die, and the pouring gate forming area is arranged corresponding to the pouring gate; or the feeding channel comprises a pouring gate and a transition feeding channel, the pouring gate is communicated with the cavity of the die through the transition feeding channel, and the pouring gate forming area is arranged corresponding to an opening at one end of the transition feeding channel.

Further, the feeding channels are multiple, the feeding channels and the pouring gate forming areas are arranged in one-to-one correspondence, the feeding channels comprise two first sub-feeding channels and two second sub-feeding channels, the two first sub-feeding channels are oppositely arranged, the two second sub-feeding channels are oppositely arranged, the transition feeding channels of the first sub-feeding channels are U-shaped, the transition feeding channels of the second sub-feeding channels comprise first channels and second channels which are mutually communicated, and an included angle is formed between the first channels and the second channels.

Further, a plurality of protrusions are arranged on the assembly surface, the protrusions are arranged in one-to-one correspondence with the plurality of gate forming areas, and orthographic projections of the gate forming areas on the corresponding protrusions are located in the protrusions.

Further, the thickness of the protrusion is 1.5mm or more; and/or, the height of the protrusions is greater than or equal to 0.5mm; and/or the bulge is a convex hull.

Further, along the height direction of the housing body, at least a part of the housing body located in the middle is protruded inwards to form an annular protrusion, the gate forming area is located on the inner surface of the annular protrusion, and the assembling surface is located on the outer surface of the annular protrusion.

Further, the annular housing further includes: a reinforcing structure disposed on the non-exterior surface; wherein, the additional strengthening is multiunit, multiunit additional strengthening sets up along the circumference interval of casing body, and each group additional strengthening includes two sub-additional strengthening, and two sub-additional strengthening are located the both sides of annular convex part.

Further, the welding line of the shell body is positioned at the third gate forming area; and/or, the appearance surface is provided with drawn lines, and the extending direction of the drawn lines is parallel to the flow direction of the melt.

According to another aspect of the present utility model, there is provided a mould having a cavity for forming the annular housing described above, the mould further having a feed channel, one end of which communicates with the cavity.

By applying the technical scheme of the utility model, the shell body is manufactured by adopting a spraying-free technology, so that the shell body is an injection molding product and is manufactured by spraying-free materials. The annular shell is provided with a plurality of gate forming areas, the plurality of gate forming areas are arranged along the circumferential direction of the annular shell at intervals, the plurality of gate forming areas comprise a first gate forming area, a second gate forming area and a third gate forming area, the second gate forming area is positioned between the first gate forming area and the third gate forming area, the second gate forming area comprises at least two sub gate forming areas which are respectively positioned on two sides of the first gate forming area, the first gate forming area is cast before the second gate forming area, and the second gate forming area is cast before the third gate forming area. Thus, the first gate forming area, the second gate forming area and the third gate forming area are filled in time sequence, namely, the melt is controlled to enter through time, the melt passes through the first gate forming area firstly, when the melt reaches two adjacent sub-gate forming areas of the first gate forming area, two other melts are relayed through the two sub-gate forming areas respectively, and finally, the melt is converged near the third gate forming area to form a welding line, at the moment, the shell body realizes multi-gate time sequence filling, only one welding line exists on the appearance surface of the shell body, the problem that the appearance attractiveness of the annular shell is influenced due to the fact that a plurality of welding lines exist on the annular shell body in the prior art is solved, and the appearance attractiveness of the annular shell body is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of an annular housing according to the utility model;

FIG. 2 shows an exploded view of the annular housing of FIG. 1;

FIG. 3 is a schematic perspective view showing a state in which a feed passage is not cut out after injection molding of a housing body of the annular housing in FIG. 1;

FIG. 4 shows a front view of the housing body of FIG. 3 after injection molding without cutting the feed channel;

FIG. 5 shows a cross-sectional view A-A of the housing body of FIG. 4 after injection molding without cutting the feed channel;

FIG. 6 shows an enlarged schematic view at B of the housing body of FIG. 5 after injection molding without cutting the feed channel;

fig. 7 shows a side view of the housing body of the annular housing of fig. 1;

FIG. 8 shows a front view of the annular housing of FIG. 1;

fig. 9 shows a C-C cross-sectional view of the annular housing of fig. 8.

Wherein the above figures include the following reference numerals:

10. a housing body; 11. appearance surface; 111. a mounting surface; 12. a non-exterior surface; 121. a gate molding zone; 1211. a first gate molding zone; 1212. a second gate molding zone; 1212a, a sub-gate molding zone; 1213. a third gate molding zone; 13. an annular convex portion; 20. a decoration piece; 30. a feed channel; 31. a gate; 32. a transition feed channel; 33. a first sub-feed passage; 34. a second sub-feed path; 341. a first channel; 342. a second channel; 40. a reinforcing structure; 41. a sub-reinforcing structure; 50. a protrusion; 60. and (5) assembling a structure.

Detailed Description

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

It is noted that 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 utility model belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

In order to solve the problem that the appearance attractiveness is affected by the fact that a plurality of welding lines exist on an annular shell in the prior art, the utility model provides the annular shell and a die.

As shown in fig. 1 to 9, the annular housing includes a housing body 10 and a garnish 20. The housing body 10 is a spray-free injection molded part, the housing body 10 has an exterior surface 11 and a non-exterior surface 12, the exterior surface 11 includes a fitting surface 111, and the non-exterior surface 12 has a gate molding region 121 for corresponding to the feed passage 30 of the mold. The ornamental piece 20 is provided on the fitting surface 111. The plurality of gate molding areas 121 are arranged at intervals along the circumferential direction of the annular shell, the plurality of gate molding areas 121 comprise a first gate molding area 1211, a second gate molding area 1212 and a third gate molding area 1213, the second gate molding area 1212 is positioned between the first gate molding area 1211 and the third gate molding area 1213, the second gate molding area 1212 comprises at least two sub-gate molding areas 1212a respectively positioned at two sides of the first gate molding area 1211, the first gate molding area 1211 is cast before the second gate molding area 1212, and the second gate molding area 1212 is cast before the third gate molding area 1213.

By applying the technical scheme of the embodiment, the shell body 10 is manufactured by adopting a spraying-free technology, so that the shell body is an injection molding product and is made of a spraying-free material. The plurality of gate molding areas 121 of the annular shell are arranged at intervals along the circumferential direction of the annular shell, the plurality of gate molding areas 121 comprise a first gate molding area 1211, a second gate molding area 1212 and a third gate molding area 1213, the second gate molding area 1212 is positioned between the first gate molding area 1211 and the third gate molding area 1213, the second gate molding area 1212 comprises at least two sub-gate molding areas 1212a respectively positioned at two sides of the first gate molding area 1211, the first gate molding area 1211 is cast before the second gate molding area 1212, and the second gate molding area 1212 is cast before the third gate molding area 1213. In this way, the first gate molding area 1211, the second gate molding area 1212 and the third gate molding area 1213 are filled in time sequence, that is, the melt is controlled by time, the melt passes through the first gate molding area 1211 first, when the melt reaches two adjacent sub-gate molding areas 1212a of the first gate molding area 1211, the other two melts respectively pass through the two sub-gate molding areas 1212a for relay, and finally the melts are converged near the third gate molding area 1213 to form a welding line, at this time, the shell body 10 realizes multi-gate time sequence filling, so that only one welding line is arranged on the appearance surface 11, thereby solving the problem that the appearance attractiveness of the annular shell is affected by the existence of a plurality of welding lines in the annular shell in the prior art, and improving the appearance attractiveness of the annular shell.

When the annular housing is injection molded by using the mold, the cavity of the mold is used for molding the annular housing, the feeding channel 30 is communicated with the cavity, the material in the feeding channel 30 forms a feeding molding portion, and the area where the annular housing is connected with the feeding molding portion is the gate molding area 121. The "gate molding region 121 corresponding to one end of the feed channel 30 of the mold" means that the gate molding region 121 corresponds to an opening of one end of the feed channel 30, and the gate molding region 121 has the same shape and size as the opening of one end of the feed channel 30.

When the annular shell is applied to the household appliance, the appearance surface is a component part of the appearance of the household appliance, namely the appearance surface is a surface which is exposed in the application environment and can be seen by 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 that is not visible to the user.

In the present embodiment, the fitting surface 111 is provided corresponding to the gate molding region 121. Thus, after the injection molding of the housing body 10 is completed, the feed passage 30 is cut off by removing, the gate molding area 121 remains on the non-exterior surface 12, and the decoration 20 is mounted on the mounting surface 111, and at this time, the mounting surface 111 is shielded by the decoration 20, so that even if an exterior defect occurs on the mounting surface 111, the user cannot see the exterior of the annular housing.

In the present embodiment, the feed passage 30 includes the gate 31, the gate 31 communicates with the cavity of the mold, and the gate molding region 121 is provided corresponding to the gate 31. In this way, the above arrangement ensures a low flow rate of the injection melt.

In other embodiments not shown in the drawings, the material channel includes a gate and a transition feed channel 32, the gate being in communication with the cavity of the mold through the transition feed channel 32, and the gate molding zone being provided corresponding to an opening at one end of the transition feed channel 32. Specifically, the arrangement described above allows the gate lines to appear on the transition structure formed by the material in the transition feed channel 32, but not on the exterior surface of the housing body.

Optionally, the plurality of feeding channels 30 are provided, the plurality of feeding channels 30 are arranged in one-to-one correspondence with the plurality of gate forming areas 121, the plurality of feeding channels 30 include two first sub-feeding channels 33 and two second sub-feeding channels 34, the two first sub-feeding channels 33 are oppositely arranged, the two second sub-feeding channels 34 are oppositely arranged, the transition feeding channel 32 of each first sub-feeding channel 33 is in a U shape, the transition feeding channel 32 of each second sub-feeding channel 34 includes a first channel 341 and a second channel 342 which are mutually communicated, and an included angle is formed between the first channel 341 and the second channel 342. In this way, the arrangement described above ensures that each gate forming region 121 is controlled by a separate feed channel 30. Meanwhile, the shape of the feeding channel 30 is more diversified through the arrangement, so that different use requirements and working conditions are met, and the processing flexibility of staff is improved.

In this embodiment, the four feeding channels 30 are disposed in a one-to-one correspondence with the four gate forming areas 121, the four feeding channels 30 include two first sub-feeding channels 33 and two second sub-feeding channels 34, the two first sub-feeding channels 33 are disposed oppositely, the two second sub-feeding channels 34 are disposed oppositely, the transition feeding channel 32 of each first sub-feeding channel 33 is in a U shape, the transition feeding channel 32 of each second sub-feeding channel 34 includes a first channel 341 and a second channel 342 which are mutually communicated, and an included angle is formed between the first channel 341 and the second channel 342.

As shown in fig. 5 to 7, the mounting surface 111 is provided with a plurality of projections 50, the plurality of projections 50 are arranged in one-to-one correspondence with the plurality of gate molding regions 121, and the orthographic projection of each gate molding region 121 on its corresponding projection 50 is located in the projection 50. In this way, the gate forming area 121 is designed at the assembling surface 111, and the protrusion 50 is designed at the back of the gate forming area 121 to increase the buffering, so as to avoid the appearance of gate lines on the appearance surface 11, and improve the appearance aesthetic degree of the housing body 10.

Optionally, the thickness of the protrusion 50 is 1.5mm or more; and/or, the height of the protrusions 50 is 0.5mm or more; and/or the projections 50 are convex hulls. Thus, the above arrangement not only improves the structural strength of the housing body 10 and prolongs the service life of the annular housing, but also improves the buffering function of the protrusion 50 on the gate forming area 121, and further avoids gate lines on the appearance surface 11. Meanwhile, the structure of the bulge 50 is simpler, the bulge is easy to process and realize, and the processing cost and the processing difficulty of the bulge 50 are reduced.

In this embodiment, the protrusion 50 is a convex hull. In this way, the design of the bevel (chamfer/C angle) and/or fillet transitions around the protrusion 50, ensuring that the thickness of the protrusion 50 is 1.5mm or more.

In the present embodiment, at least part of the housing body 10 located in the middle is projected inward in the height direction of the housing body 10 to form the annular convex portion 13, the gate molding region 121 is located on the inner surface of the annular convex portion 13, and the fitting surface 111 is located on the outer surface of the annular convex portion 13. In this way, the above arrangement ensures that the thickness and the height direction dimension of the protrusion 50 are both larger than the thickness and the height direction dimension of the gate forming region 121.

As shown in fig. 1-5, the annular housing further includes a reinforcing structure 40. The reinforcing structure 40 is provided on the non-exterior surface 12. Wherein, the reinforcing structures 40 are multiple groups, the multiple groups of reinforcing structures 40 are arranged at intervals along the circumferential direction of the housing body 10, each group of reinforcing structures 40 comprises two sub-reinforcing structures 41, and the two sub-reinforcing structures 41 are positioned at two sides of the annular protruding portion 13. Thus, the above-described arrangement of the reinforcing structure 40 improves the structural strength of the annular housing, thereby extending the service life of the annular housing. At the same time, the above arrangement makes the part of the reinforcing structure 40 on the housing body 10 more rational and compact.

In the present embodiment, the housing body 10 is made of a spray-free material including a base material and particles distributed in the base material; wherein the base material is a thermoplastic polymer material; the particles are any one or more of metal particles, pearl powder and fibers. The spraying-free material contains the particles, so that the injection molding part has unique light and shadow effect and metallic luster after molding, and can achieve the appearance effect comparable to or better than spraying without secondary treatment.

Alternatively, the metal particles are aluminum or copper.

Alternatively, the fibers are nylon or natural fibers.

Alternatively, the weld line of the housing body 10 is located at the third gate molding region 1213; and/or, the appearance surface 11 is provided with a drawing line, and the extending direction of the drawing line is parallel to the flow direction of the melt. Thus, if the appearance surface 11 has flow marks, the direction of the flow marks is the same as the flow direction, and the extending direction of the drawing lines is parallel to the flow direction of the melt, so that the flow marks can be covered by the lines of the drawing lines, and the flow marks have a covering effect.

As shown in fig. 4, the housing body 10 is provided with an assembling structure 60. The housing body 10 is assembled with the remaining components by the assembly structure 60.

Alternatively, the decorative piece 20 is made of metal, or transparent plastic, or non-transparent plastic.

As shown in fig. 4, the present utility model also provides a mold having a cavity for forming the above annular housing, and a feed passage 30, one end of the feed passage 30 being in communication with the cavity.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the shell body is made by adopting a spraying-free technology, so that the shell body is an injection molding product and is made of a spraying-free material. The annular shell is provided with a plurality of gate forming areas, the plurality of gate forming areas are arranged along the circumferential direction of the annular shell at intervals, the plurality of gate forming areas comprise a first gate forming area, a second gate forming area and a third gate forming area, the second gate forming area is positioned between the first gate forming area and the third gate forming area, the second gate forming area comprises at least two sub gate forming areas which are respectively positioned on two sides of the first gate forming area, the first gate forming area is cast before the second gate forming area, and the second gate forming area is cast before the third gate forming area. Thus, the first gate forming area, the second gate forming area and the third gate forming area are filled in time sequence, namely, the melt is controlled to enter through time, the melt passes through the first gate forming area firstly, when the melt reaches two adjacent sub-gate forming areas of the first gate forming area, two other melts are relayed through the two sub-gate forming areas respectively, and finally, the melt is converged near the third gate forming area to form a welding line, at the moment, the shell body realizes multi-gate time sequence filling, only one welding line exists on the appearance surface of the shell body, the problem that the appearance attractiveness of the annular shell is influenced due to the fact that a plurality of welding lines exist on the annular shell body in the prior art is solved, and the appearance attractiveness of the annular shell body is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

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 exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An annular housing, comprising:

the shell body (10), the shell body (10) is a spraying-free injection molding piece, the shell body (10) is provided with an appearance surface (11) and a non-appearance surface (12), the appearance surface (11) comprises an assembly surface (111), and the non-appearance surface (12) is provided with a pouring gate forming area (121) corresponding to a feeding channel (30) of a die;

a decorative piece (20) provided on the fitting surface (111);

the plurality of gate forming areas (121) are arranged at intervals along the circumferential direction of the annular shell, the plurality of gate forming areas (121) comprise a first gate forming area (1211), a second gate forming area (1212) and a third gate forming area (1213), the second gate forming area (1212) is located between the first gate forming area (1211) and the third gate forming area (1213), the second gate forming area (1212) comprises at least two sub-gate forming areas (1212 a) located at two sides of the first gate forming area (1211), the first gate forming area (1211) is cast before the second gate forming area (1212), and the second gate forming area (1212) is cast before the third gate forming area (1213).

2. The annular housing according to claim 1, wherein the mounting surface (111) is arranged in correspondence with the gate forming zone (121).

3. The annular housing of claim 1 wherein the annular housing is configured to receive the annular housing,

the feeding channel (30) comprises a gate (31), the gate (31) is communicated with a cavity of the die, and the gate forming area (121) is arranged corresponding to the gate (31); or alternatively, the process may be performed,

the feeding channel (30) comprises a gate (31) and a transition feeding channel (32), the gate (31) is communicated with the cavity of the die through the transition feeding channel (32), and the gate forming area (121) is arranged corresponding to an opening at one end of the transition feeding channel (32).

4. The annular housing according to claim 1, wherein the plurality of feed channels (30) are provided, the plurality of feed channels (30) are provided in one-to-one correspondence with the plurality of gate forming areas (121), the plurality of feed channels (30) include two first sub-feed channels (33) and two second sub-feed channels (34), the two first sub-feed channels (33) are provided opposite to each other, the two second sub-feed channels (34) are provided opposite to each other, the transition feed channel (32) of each first sub-feed channel (33) is U-shaped, the transition feed channel (32) of each second sub-feed channel (34) includes a first channel (341) and a second channel (342) which are mutually communicated, and an included angle is formed between the first channel (341) and the second channel (342).

5. The annular housing according to claim 1, wherein a plurality of projections (50) are provided on the mounting surface (111), the plurality of projections (50) being provided in one-to-one correspondence with a plurality of the gate molding regions (121), an orthographic projection of each gate molding region (121) onto its corresponding projection (50) being located within the projection (50).

6. The annular housing of claim 5 wherein the annular housing is configured to receive the annular housing,

the thickness of the bulge (50) is more than or equal to 1.5mm; and/or the number of the groups of groups,

the height of the bulge (50) is more than or equal to 0.5mm; and/or the number of the groups of groups,

the protrusion (50) is a convex hull.

7. The annular housing according to claim 1, wherein at least a part of the housing body (10) located at the middle portion protrudes inward in the height direction of the housing body (10) to form an annular convex portion (13), the gate molding region (121) is located on an inner surface of the annular convex portion (13), and the fitting surface (111) is located on an outer surface of the annular convex portion (13).

8. The annular housing of claim 7 further comprising:

a reinforcing structure (40) provided on the non-exterior surface (12);

wherein, the reinforced structure (40) is multiunit, multiunit reinforced structure (40) are followed circumference interval setting of casing body (10), and each group reinforced structure (40) include two sub-reinforced structure (41), two sub-reinforced structure (41) are located the both sides of annular convex part (13).

9. The annular housing of claim 1 wherein the annular housing is configured to receive the annular housing,

a weld line of the housing body (10) is located at the third gate molding zone (1213); and/or the number of the groups of groups,

and the appearance surface (11) is provided with drawn yarns, and the extending direction of the drawn yarns is parallel to the flow direction of the melt.

10. A mould, characterized in that it has a cavity for forming an annular shell according to any one of claims 1 to 9, the mould further having a feed channel (30), one end of the feed channel (30) being in communication with the cavity.