CN114834366A - Rhombic grating structure capable of eliminating defects of injection molding appearance surface - Google Patents
Rhombic grating structure capable of eliminating defects of injection molding appearance surface Download PDFInfo
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- CN114834366A CN114834366A CN202210237872.4A CN202210237872A CN114834366A CN 114834366 A CN114834366 A CN 114834366A CN 202210237872 A CN202210237872 A CN 202210237872A CN 114834366 A CN114834366 A CN 114834366A
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- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 title claims abstract description 48
- 230000007547 defect Effects 0.000 title claims abstract description 32
- 238000001746 injection moulding Methods 0.000 title claims abstract description 29
- 239000003292 glue Substances 0.000 claims abstract description 45
- 230000007423 decrease Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims 2
- 239000000155 melt Substances 0.000 abstract description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052709 silver Inorganic materials 0.000 abstract description 12
- 239000004332 silver Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 8
- 206010066054 Dysmorphism Diseases 0.000 abstract description 4
- 238000012805 post-processing Methods 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000004927 fusion Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 235000021189 garnishes Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a rhombic grating structure capable of eliminating defects of an appearance surface of injection molding, wherein the thicknesses of an approximate plane of a glue reducing groove and a special-shaped curved surface of the glue reducing groove are gradually reduced from one side close to the appearance surface of a rhombic grating body to one side close to the inner surface of the rhombic grating body; the thickness of dysmorphism face middle part along grid structure body major axis direction is the same, and the thickness of dysmorphism face tip along grid structure body major axis direction is towards the direction of keeping away from dysmorphism face middle part and is gradually increased, and the approximate plane of groove of subtracting is from middle to both ends gradual change increase along the thickness of grid structure body major axis direction. By adopting the technical scheme, the melt can be easily and effectively guided to one side of the groove bottom of the glue reducing groove, and the melt can flow from the groove bottom to the direction of the groove opening, so that the defects of surface silver wires, surface white lines, surface cold materials, surface bubbles and the like can only be basically appeared on the inner surface rather than the outer surface, the defect of the outer surface of a product can be greatly eliminated, the qualification rate of the product is greatly improved, and the labor cost of the post-processing treatment defect is reduced.
Description
Technical Field
The invention relates to the technical field of injection molding, in particular to a rhombic grid structure capable of eliminating defects of an injection molding appearance surface.
Background
With the increasing aesthetic requirements of automobiles, more and more host factories begin to use large-area complex-curved plastic covering parts on automobiles, and front bumpers are one of the large-area complex-curved plastic covering parts.
One of the more popular shapes of the automobile front bumper is the shape of a diamond-shaped grid with a small boss, and compared with a paint spraying process and an electroplating process, the high-gloss spraying-free process is more and more popular in the industry, so that the cost can be effectively saved.
The main engine plant only limits the appearance surface (namely, A surface) modeling of the front bumper, and the inner surface (namely, B surface) of the front bumper is designed by a processing enterprise. At present, the traditional method of processing enterprises is to design an inner surface and a corresponding structure according to the design principle of equal wall thickness of an appearance surface. However, in the existing structure of the small boss of the rhombic grating belt, because the middle of the structure of the small boss of the rhombic grating belt is provided with a plurality of holes, the injection molding and filling process is greatly hindered, so that the filling of the middle small boss area is very difficult. And the connecting rib wall thickness between the diamond-shaped grating and the small boss is usually thinner, is equivalent to a criss-cross small 'river' on the mould, is divided after fusion, and is fused after division, so that division and continuation are realized, the melt flow is easy to disorder and continue, and the melt flows collide with each other, poor air exhaust and the like, so that appearance surface defects such as surface silver wires, surface white lines, surface cold burden, surface bubbles and the like are caused.
It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a rhombic grid structure capable of eliminating the defects of an injection molding appearance surface.
The technical scheme is as follows:
the utility model provides a can eliminate rhombus grid structure of injection moulding outward appearance face defect, includes the rhombus grid body that adopts injection moulding technology integrated into one piece, and the both sides surface of this rhombus grid body is outward appearance face and internal surface respectively, the rhombus grid body comprises the rhombus grid unit of a plurality of array distributions, the rhombus grid unit is including the grid structure body that is rhombus frame construction and the grid decorative body of setting in the grid structure body, the both ends of grid decorative body respectively are connected with the corresponding end of grid structure body major axis direction through a splice bar, the grid decorative body is the flat boss structure that extends along grid structure body major axis direction, the width of grid decorative body along grid structure minor axis direction reduces from being close to rhombus grid body internal surface one side to being close to rhombus grid body outward appearance face one side, one side that the grid decorative body is close to rhombus grid body internal surface is provided with and subtracts the gluey groove, so that the cross-section of grid decorative body perpendicular to grid structure body major axis direction is "V" shape structure, its main points lie in: the grating decorating body consists of a glue reducing groove approximate plane and a glue reducing groove special-shaped curved surface which are respectively positioned at two sides of the glue reducing groove, and the thicknesses of the glue reducing groove approximate plane and the glue reducing groove special-shaped curved surface are gradually reduced from one side close to the appearance surface of the rhombic grating body to one side close to the inner surface of the rhombic grating body;
subtract special-shaped curved surface of gluey groove including the special-shaped face middle part that is located the intermediate position and the special-shaped face tip that is located special-shaped face middle part both ends respectively, it is the sheet structure to subtract gluey groove approximate plane, special-shaped face middle part and special-shaped face tip, and two special-shaped face tips extend to the corresponding end that subtracts gluey groove approximate plane aslope respectively from the corresponding end at special-shaped face middle part, the thickness of grid structure major axis direction is the same in special-shaped face middle part, special-shaped face tip increases towards the direction gradual change of keeping away from special-shaped face middle part along the thickness of grid structure major axis direction, it increases to both ends gradual change from the centre along the thickness of grid structure major axis direction to subtract gluey groove approximate plane.
Preferably, the method comprises the following steps: and the bottom of the glue reducing groove forms a transverse groove bottom extending along the long axis direction of the grid structure.
By adopting the structure, the glue is added at the bottom of the glue reducing groove to form the transverse groove bottom, so that the flow of the melt at the bottom of the groove during injection molding is further accelerated, the melt at the groove bottom is further ensured to be fused before the groove opening, and the defects of surface silver wires, surface white lines, surface cold materials, surface bubbles and the like are further ensured to be only possibly generated on the inner surface rather than the appearance surface.
Preferably, the method comprises the following steps: the side surface of the grating decorative body close to the inner surface of the rhombic grating body is lower than the side surface of the grating structural body close to the inner surface of the rhombic grating body, and the connecting ribs obliquely extend to the side surface of the grating decorative body close to the inner surface of the rhombic grating body from the corresponding end of the grating structural body in the long axis direction.
By adopting the structure, the melt is favorably guided to one side of the groove bottom of the glue reducing groove, the melt is ensured to flow from the groove bottom to the direction of the groove opening, and the defects of surface silver wires, surface white lines, surface cold materials, surface bubbles and the like are further ensured to be possibly only on the inner surface but not the appearance surface.
Preferably, the method comprises the following steps: the connecting rib is connected with the grid decorative body to form a forked connecting part which extends to the approximate plane of the glue reducing groove and the end part of the special-shaped surface respectively, and the thickness of the forked connecting part gradually decreases towards the direction far away from the connecting rib.
The structure more than adopting, branching connecting portion are the transition structure of gradual change attenuate, cooperate the structure that the grid decorative body corresponds the position again, can lead the fuse-element to the tank bottom one side that subtracts the gluey groove better, ensure that the fuse-element flows from the tank bottom to notch direction, further ensure defects such as surface silver silk, surface white line, surface cold burden, surface bubble can only appear on interior surface rather than the outward appearance face.
Preferably, the method comprises the following steps: the grating decoration body is close to one side surface protrusion that rhombus grid body outward appearance face is close to one side surface of rhombus grid body outward appearance face in the grid structure, the one side surface that the splice bar is close to rhombus grid body outward appearance face is less than the one side surface that the grid structure is close to rhombus grid body outward appearance face.
By adopting the structure, the appearance surface is more beautiful and atmospheric.
Preferably, the method comprises the following steps: the two ends of the grid structure body in the short axis direction and the two ends of the grid structure body in the long axis direction, which are close to one side of the inner surface of the rhombic grid body, are provided with cylindrical connection points in a cylindrical structure.
By adopting the structure, any cylindrical connecting point can be used as a pouring gate, so that the design freedom of the injection mold is higher, and the process difficulty is reduced.
Preferably, the method comprises the following steps: the protruding heights of the grid structure body and the connecting ribs on one side close to the inner surface of the rhombic grid body gradually increase towards the direction far away from the adjacent cylindrical connecting point, then keep a section, and finally gradually decrease to extend to the next cylindrical connecting point.
By adopting the structure, the flow of the melt is increased as much as possible, and the appearance quality is reduced.
Preferably, the method comprises the following steps: and the middle part of the special-shaped surface and the end part of the special-shaped surface are in arc transition.
By adopting the structure, the structure is more attractive, the melt can flow more smoothly, and the possibility of appearance problems is reduced.
Compared with the prior art, the invention has the beneficial effects that:
adopt the rhombus grid structure of a kind of ability elimination injection moulding outward appearance defect of above technical scheme, can easily be effectively with the fuse-element to the tank bottom one side that subtracts the gluey groove, ensure that the fuse-element flows from the tank bottom toward the notch direction, thereby ensure that defects such as surface silver silk, surface white line, surface cold charge, surface bubble are basically only can appear at the inner surface rather than on the outward appearance (the internal surface also can not appear basically), can greatly eliminate the outward appearance defect of product, promote the qualification rate of product by a wide margin, reduce the cost of labor of post processing treatment defect.
Drawings
FIG. 1 is a perspective view of the inner surface of the present invention;
FIG. 2 is a schematic plan view of the inner surface of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic perspective view of the exterior surface of the present invention;
FIG. 5 is a schematic view of the melt filling direction at the grid garnish using the structure of the present invention;
FIG. 6 is a schematic view of melt filling orientation at a conventional isopipe construction for a grid garnish.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, 2 and 4, the rhombic grid structure capable of eliminating the defects of the injection molded appearance surface comprises a rhombic grid body integrally molded by adopting an injection molding process, wherein the two side surfaces of the rhombic grid body are an appearance surface and an inner surface respectively, the appearance surface is a popular A surface, and the inner surface is a popular B surface.
The rhombus grid body comprises rhombus grid unit 1 of a plurality of array distributions, rhombus grid unit 1 is including the grid structure 11 that is rhombus frame construction and the grid decorative body 12 of setting in grid structure 11, grid decorative body 12 is the flat boss structure of following the extension of 11 major axis directions of grid structure, and grid decorative body 12 is close to rhombus grid body outward appearance one side gradual change reduction from being close to rhombus grid body internal surface one side along the width of 11 minor axis directions of grid structure, the both ends of grid decorative body 12 are respectively connected with the corresponding end of 11 major axis directions of grid structure through a splice bar 13. Namely: each grid structure body 11 is of a rhombic frame structure, and a plurality of grid structure bodies 11 are combined together to form a rhombic grid structure; each grid structure body 11 is provided with a grid decoration body 12 with a flat boss structure, so that the whole body forms a diamond grid with small bosses.
Referring to fig. 1-3, in this embodiment, a glue reducing groove 121 is disposed on one side of the grille decorative body 12 close to the inner surface of the rhombic grille body, so that the cross section of the grille decorative body 12 perpendicular to the long axis direction of the grille structural body 11 is in a "V" shape, the grille decorative body 12 is composed of a glue reducing groove approximate plane 122 and a glue reducing groove special-shaped curved surface 123 which are respectively disposed on two sides of the glue reducing groove 121, the thicknesses of the glue reducing groove approximate plane 122 and the glue reducing groove special-shaped curved surface 123 gradually decrease from one side close to the outer surface of the rhombic grille body to one side close to the inner surface of the rhombic grille body, so that the flow at the bottom of the glue reducing groove 121 is accelerated, the flow of the glue reducing groove 121 is choked, the flow rate is slowed down, thereby ensuring that the melt at the groove bottom is fused before the groove is formed, and further ensuring that defects such as surface silver wires, surface white lines, surface cold materials, surface bubbles and the like can only appear on the inner surface of the grille decorative body 12, and does not appear on the non-exterior surface of the grill decorative body 12.
Similarly, the glue reducing groove special-shaped curved surface 123 includes a special-shaped surface middle part 123a located in the middle and special-shaped surface end parts 123b located at two ends of the special-shaped surface middle part 123a, the glue reducing groove approximate plane 122, the special-shaped surface middle part 123a and the special-shaped surface end parts 123b are all thin plate structures, the two special-shaped surface end parts 123b extend from corresponding ends of the special-shaped surface middle part 123a to corresponding ends of the glue reducing groove approximate plane 122 obliquely, the thicknesses of the special-shaped surface middle part 123a in the long axis direction of the grid structure 11 are the same, the thicknesses of the special-shaped surface end parts 123b in the long axis direction of the grid structure 11 gradually increase towards the direction far from the special-shaped surface middle part 123a, and the thicknesses of the glue reducing groove approximate plane 122 in the long axis direction of the grid structure 11 gradually increase from the middle to two ends. Referring to fig. 5, by this design, the flow at the bottom of the glue reducing groove 121 is accelerated, the flow at the notch of the glue reducing groove 121 is retarded, and especially, the flow at the middle of the notch of the glue reducing groove 121 is retarded to maximize the flow, so that the final fusion position is at the position, thereby ensuring that the melt at the groove bottom is fused before the notch, and further ensuring that the defects such as surface silver wires, surface white lines, surface cold materials, surface bubbles and the like can only appear on the inner surface of the grille decorative body 12 and cannot appear on the non-exterior surface of the grille decorative body 12; referring to fig. 6, due to the structural design problem, the fusion position of the conventional rhombic lattice structure with equal wall thickness is located at the middle position of the bottom of the glue reducing groove 121, so that the defects of surface silver wires, surface white lines, surface cold materials, surface bubbles and the like are easily caused on the appearance surface, the failure rate is high, the subsequent treatment can be performed only by manpower, and the cost is high.
Further, referring to fig. 3, the bottom of the glue reducing groove 121 forms a transverse groove bottom 121a extending along the long axis direction of the grid structure 11, glue is added at the bottom of the glue reducing groove 121 to form the transverse groove bottom 121a, and the flow of the melt at the bottom of the groove during injection molding is further accelerated, so that the melt at the bottom of the groove is further ensured to be fused before the groove opening, and further, the defects such as surface silver wires, surface white lines, surface cold charges, surface bubbles and the like are further ensured to be only possibly present on the inner surface rather than the appearance surface. And this horizontal tank bottom 121a has glued 0.3mm, and the cooperation subtracts the thinnest department in the middle of the approximate plane 122 notch of gluey groove and subtracts gluey to 1mm, and the notch position of dysmorphism face middle part 123a also subtracts gluey to 1mm simultaneously, and the fuse is realized earlier than the notch to the fuse of fuse-element of further assurance tank bottom department, avoids appearing the appearance quality problem at the outward appearance face.
Further, referring to fig. 1, a side surface of the grille decorative body 12 close to the inner surface of the rhombic grille body is lower than a side surface of the grille structural body 11 close to the inner surface of the rhombic grille body, and the connecting ribs 13 extend obliquely from corresponding ends of the grille structural body 11 in the long axis direction to the side surface of the grille decorative body 12 close to the inner surface of the rhombic grille body. The design is favorable for guiding the melt to one side of the groove bottom of the glue reducing groove 121, ensures that the melt flows from the groove bottom to the direction of the groove opening, and further ensures that defects such as surface silver wires, surface white lines, surface cold materials, surface bubbles and the like can only appear on the inner surface but not the appearance surface.
Referring to fig. 1 and 2, the connecting rib 13 is connected to the grid decorative body 12 to form a branch connection portion 131 extending to the glue-reducing groove approximate plane 122 and the end portion 123b of the special-shaped surface, respectively, and the thickness of the branch connection portion 131 gradually decreases toward a direction away from the connecting rib 13. The forked connecting portion 131 is a transition structure with gradually changing thinning, and is matched with a structure at a corresponding position of the grille decorative body 12, so that the melt can be better guided to one side of the groove bottom of the glue reducing groove 121, the melt is ensured to flow from the groove bottom to the direction of the groove opening, and the defects of surface silver wires, surface white lines, surface cold materials, surface bubbles and the like are further ensured to be only possibly generated on the inner surface rather than the appearance surface.
Referring to fig. 4, a side surface of the grille decorative body 12 close to the appearance surface of the rhombic grille body protrudes out of a side surface of the grille structural body 11 close to the appearance surface of the rhombic grille body, and a side surface of the connecting rib 13 close to the appearance surface of the rhombic grille body is lower than a side surface of the grille structural body 11 close to the appearance surface of the rhombic grille body, so that the appearance surface is more beautiful and air-conditioned.
Referring to fig. 1 and 2, cylindrical connection points 14 in a cylindrical structure are respectively arranged at both ends of the grid structure body 11 in the short axis direction and both ends of the grid structure body in the long axis direction, which are close to one side of the inner surface of the rhombic grid body, and any cylindrical connection point 14 can be used as a gate, so that the design freedom of an injection mold is higher, and the process difficulty is reduced.
The protruding heights of the grid structure body 11 and the connecting ribs 13 on the side close to the inner surface of the rhombic grid body gradually increase towards the direction far away from the adjacent cylindrical connecting point 14, then keep the height gradually increased for a section, and finally gradually decrease and extend to the next cylindrical connecting point 14, so that the flow of melt is increased as much as possible, and the possibility of appearance quality is reduced.
Referring to fig. 1, 2 and 4, the arc transition is adopted between the middle part 123a of the special-shaped surface and the end part 123b of the special-shaped surface, so that the appearance is more attractive, the melt can be smoother, and the possibility of appearance problems is reduced.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a can eliminate rhombus grid structure of injection moulding outward appearance face defect, includes the rhombus grid body that adopts injection moulding technology integrated into one piece, and the both sides surface of this rhombus grid body is outward appearance face and internal surface respectively, the rhombus grid body comprises rhombus grid unit (1) of a plurality of array distributions, rhombus grid unit (1) is including grid structure (11) that are rhombus frame construction and grid decorative body (12) of setting in grid structure (11), the both ends of grid decorative body (12) are respectively connected through the corresponding end of a splice bar (13) and grid structure (11) major axis direction, grid decorative body (12) are the flat boss structure that extends along grid structure (11) major axis direction, grid decorative body (12) reduce from being close to rhombus grid body internal surface one side gradual change along the width of grid structure (11) minor axis direction, one side that grid decorative body (12) is close to rhombus grid body internal surface is provided with subtracts gluey groove (121) to make grid decorative body (12) perpendicular to grid structure (11) major axis direction's cross-section be "V" shape structure, its characterized in that: the grille decorative body (12) is composed of a glue reducing groove approximate plane (122) and a glue reducing groove special-shaped curved surface (123) which are respectively positioned at two sides of the glue reducing groove (121), and the thicknesses of the glue reducing groove approximate plane (122) and the glue reducing groove special-shaped curved surface (123) are gradually reduced from one side close to the appearance surface of the rhombic grille body to one side close to the inner surface of the rhombic grille body;
the special-shaped curved surface (123) of the glue reducing groove comprises a special-shaped surface middle part (123a) positioned in the middle position and special-shaped surface end parts (123b) respectively positioned at two ends of the special-shaped surface middle part (123a), the approximate plane (122) of the glue reducing groove, the middle part (123a) of the special-shaped surface and the end part (123b) of the special-shaped surface are all, and the end parts (123b) of the two irregular surfaces extend obliquely from the corresponding ends of the middle part (123a) of the irregular surfaces to the corresponding ends of the approximate plane (122) of the glue reducing groove respectively, the thickness of the middle part (123a) of the special-shaped surface along the long axis direction of the grid structure body (11) is the same, the thickness of the end part (123b) of the special-shaped surface along the long axis direction of the grid structure body (11) gradually increases towards the direction far away from the middle part (123a) of the special-shaped surface, the thickness of the approximate plane (122) of the glue reducing groove along the long axis direction of the grid structure body (11) is gradually increased from the middle to the two ends.
2. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 1, wherein: the bottom of the glue reducing groove (121) forms a transverse groove bottom (121a) extending along the long axis direction of the grid structure body (11).
3. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 1, wherein: the side surface of the grid decorative body (12) close to the inner surface of the rhombic grid body is lower than the side surface of the grid structural body (11) close to the inner surface of the rhombic grid body, and the connecting ribs (13) obliquely extend to the side surface of the grid decorative body (12) close to the inner surface of the rhombic grid body from the corresponding end of the grid structural body (11) in the long axis direction.
4. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 3, wherein: the connecting rib (13) is connected with the grid decorative body (12) to form a forked connecting part (131) which extends towards the approximate plane (122) of the glue reducing groove and the end part (123b) of the special-shaped surface respectively, and the thickness of the forked connecting part (131) is gradually reduced towards the direction far away from the connecting rib (13).
5. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 1, wherein: one side surface that grid decorative body (12) is close to rhombus grid body outward appearance face protrudes in grid structure body (11) and is close to a side surface of rhombus grid body outward appearance face, one side surface that splice bar (13) is close to rhombus grid body outward appearance face is less than one side surface that grid structure body (11) is close to rhombus grid body outward appearance face.
6. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 1, wherein: the two ends of the grid structure body (11) close to one side of the inner surface of the rhombic grid body in the short axis direction and the two ends of the grid structure body in the long axis direction are both provided with cylindrical connection points (14) in a cylindrical structure.
7. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 6, wherein: the protruding heights of the grid structure body (11) and the connecting ribs (13) on one side close to the inner surface of the rhombic grid body gradually increase towards the direction far away from the adjacent cylindrical connecting point (14), then keep a section, and finally gradually decrease to extend to the next cylindrical connecting point (14).
8. The rhombic lattice structure capable of eliminating the defects of the injection molding appearance surface of the plastic injection molding machine as claimed in claim 1, wherein: the middle part (123a) and the end part (123b) of the special-shaped surface adopt circular arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210237872.4A CN114834366B (en) | 2022-03-11 | Diamond grid structure capable of eliminating defect of injection molding appearance surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210237872.4A CN114834366B (en) | 2022-03-11 | Diamond grid structure capable of eliminating defect of injection molding appearance surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114834366A true CN114834366A (en) | 2022-08-02 |
| CN114834366B CN114834366B (en) | 2024-07-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633443A (en) * | 2022-03-11 | 2022-06-17 | 重庆平伟汽车零部件有限公司 | Optimization method of injection molding process of complex rhombic grating |
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| CN206012524U (en) * | 2016-08-18 | 2017-03-15 | 天津华夏联盛汽车部件有限公司 | A kind of mounting structure of front bumper Under The Grille |
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| US20210380058A1 (en) * | 2020-06-08 | 2021-12-09 | Toyota Motor Engineering & Manufacturing North America, Inc. | Vehicle grille assembly |
| CN213384158U (en) * | 2020-08-24 | 2021-06-08 | 宁波中骏森驰汽车零部件股份有限公司 | Grid structure |
| CN215793569U (en) * | 2021-02-27 | 2022-02-11 | 重庆长安汽车股份有限公司 | Grille decoration structure and car on front bumper |
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| CN114633443A (en) * | 2022-03-11 | 2022-06-17 | 重庆平伟汽车零部件有限公司 | Optimization method of injection molding process of complex rhombic grating |
| CN114633443B (en) * | 2022-03-11 | 2024-05-24 | 重庆平伟汽车零部件有限公司 | Optimization method of injection molding process of complex diamond-shaped grating |
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