CN202607984U - Lampshade injection mold ejection mechanism - Google Patents
Lampshade injection mold ejection mechanism Download PDFInfo
- Publication number
- CN202607984U CN202607984U CN 201220121164 CN201220121164U CN202607984U CN 202607984 U CN202607984 U CN 202607984U CN 201220121164 CN201220121164 CN 201220121164 CN 201220121164 U CN201220121164 U CN 201220121164U CN 202607984 U CN202607984 U CN 202607984U
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- CN
- China
- Prior art keywords
- straight
- injection mold
- lampshade
- jacking block
- ejection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Provided is a lampshade injection mold ejection mechanism. The lampshade injection mold ejection mechanism is used to improve assembly pass percent of automobile lamps. The lampshade injection mold ejection mechanism is composed of a set of ejection units arranged on the periphery of an injection mold cavity. Each ejection unit comprises a straight ejection block, a straight ejection bar and a fixed screw, wherein the straight ejection block is arranged on the top of the straight ejection bar through the fixed screw, a top surface of the straight ejection block matches with that of a movable mold insert, the side angle between the top surface of the straight ejection block and one side near a mold cavity is Alpha , and the distance from a side lowest point of the straight ejection block near the mold cavity to seal rib roots of an injection molding lampshade is L. The lampshade injection mold ejection mechanism can effectively prevent gaps in seal rib positions of the injection molding lampshade from happening, improve glue-filling quality and assembly pass percent of lamps, avoid split joint lines in the seal rib roots from happening and greatly prolong service life of the automobile lamps.
Description
Technical field
The utility model relates to a kind of injection mold ejecting mechanism, is particularly useful for the ejecting mechanism of automobile lampshade injection mold, belongs to the injection mold technical field.
Background technology
Along with the continuous progress of injection molding technology, improve the injecting products qualification rate and become the target that manufacturing enterprise is pursued, therefore increasingly high to the injection mold structure designing requirement.
At present, one of key issue of restriction injecting products qualification rate is: when the injection mold that adopts ejecting block is produced, at the vestige that the position all can stay splicing line that ejects of injecting products spare, form offset.Particularly automobile lampshade class injecting products because existing injection mold jacking block and moving die insert parting line Position Design are unreasonable, leaves the twice splicing line at the product sidewall; Form offset, when making lampshade and lamp housing assemble encapsulating, mobile relatively poor because of the thickness glue; Be easy to generate frictioning, cause the uneven consequence of encapsulating, not only can influence the sealing property of light fixture product; And the durability of car light is relatively poor, the stress cracking phenomenon occurs in the splicing line position easily.When the injection mold that adopts flat roof construction was produced, owing to eject the root of Position Design at muscle, it was little to eject area, occurs faulting of slab ends easily, and the processing of position, flat top, bedding-in require than higher.
The utility model content
The purpose of the utility model is the drawback to prior art; Provide a kind of sealed muscle position that can prevent offset to occur; Improve encapsulating quality and light fixture product percent of pass; Avoid producing splicing line, prevent stress cracking, improve the lampshade injection mold ejecting mechanism of car light durability at the root of sealed muscle.
The said problem of the utility model realizes with following technical proposals:
A kind of lampshade injection mold ejecting mechanism; It is made up of one group of ejecting unit that is arranged in injection moulding die cavity periphery; Said ejecting unit comprises straight jacking block, straight push rod and hold-down screw, and said straight jacking block is installed in the top of straight push rod through hold-down screw, and the end face of straight jacking block matees with the moving die insert end face; Straight jacking block end face be α near die cavity one side side angle, said straight jacking block near die cavity one side side minimum point and injecting products spare sealed muscle root apart from being L.
Above-mentioned lampshade injection mold ejecting mechanism, the lower end of said straight push rod is fixed on the ejector pin retaining plate of injection mold.
Above-mentioned lampshade injection mold ejecting mechanism, said straight jacking block end face with near die cavity one side side angle=45 °～60 °, said straight jacking block is near die cavity one side side minimum point and injecting products spare sealed muscle root distance L ﹥ 5mm.
The straight jacking block of the utility model is near die cavity one side side perigee distance injecting products spare sealed muscle root position 5mm at least, makes the injecting products splicing line leave the root of lampshade sealed muscle, lampshade bottom uniform in shaping; Straight jacking block end face and near die cavity one side side angle between 45 °～60 °; Not only reduce the moving die insert that cooperates with it because of the difficulty of processing that wedge angle occurs and bring and the mould product finning that the angle caused that collapses, and avoided the excessive reduction that causes the jacking block bulk strength of jacking block angle; Straight jacking block and moving die insert parting line are positioned at the first half of product sealed muscle; The latter half can not produce splicing line, and when lampshade and lamp housing assembling, the encapsulating face is slick and sly; Helping glue flows; Simultaneously region of stress concentration reduces, and stress concentration point leaves stressed maximum position, has stopped the generation of light fixture product cracking phenomena.In a word, the utility model can prevent effectively that offset from appearring in injection moulding lampshade sealed muscle position, has improved light fixture product encapsulating quality and assembling qualification rate, has avoided producing splicing line, the service life of having improved car light greatly at the root of sealed muscle.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified:
Fig. 1 is an automobile lampshade injection mold dynamic model cut-away section structure chart;
Fig. 2 is an automobile lampshade injection mold dynamic model part vertical view;
Fig. 3 is an A place structure enlarged drawing among Fig. 1;
Fig. 4 is that straight jacking block and injecting products spare position concern sketch map.
Each label is among the figure: 1, moving die insert, and 2, moving platen, 3, supporting leg, 4, ejector pin retaining plate, 5, push pedal, 6, dynamic mould fixing plate, 7, ejecting unit, 7-1, straight jacking block, 7-2, straight push rod, 7-3, hold-down screw, 8, injecting products spare,
8-1, injecting products spare sealed muscle.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4; The utility model is made up of one group of ejecting unit 7 that is arranged in injection moulding die cavity periphery; Said ejecting unit 7 comprises straight jacking block 7-1, straight push rod 7-2 and hold-down screw 7-3; Said straight jacking block 7-1 is installed in the top of straight push rod 7-2 through hold-down screw 7-3; The end face of straight jacking block 7-1 and moving die insert 1 end face coupling, straight jacking block end face be α near die cavity one side side angle, said straight jacking block near die cavity one side side minimum point and injecting products spare sealed muscle 8-1 root apart from being L.
Referring to Fig. 1, the lower end of the straight push rod 7-2 of the utility model is fixed on the ejector pin retaining plate 4 of injection mold.
Referring to Fig. 4, the straight jacking block 7-1 end face of the utility model with near die cavity one side side angle=45 °～60 °, said straight jacking block is near die cavity one side side minimum point and injecting products spare sealed muscle 8-1 root distance L ﹥ 5mm.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the operation principle of the utility model is:
The primary structure characteristic of automobile lampshade injection mold: integral body is symmetrical structure; Moving die insert 1 is fixed on the moving platen 2; Moving platen 2 is through supporting leg 3 and dynamic mould fixing plate 6 assemblings, and push pedal 5 is connected with ejector pin retaining plate 4, and ejecting unit 7 lower ends are through screw and ejector pin retaining plate 4 assemblings.
The straight jacking block of the utility model is near die cavity one side side perigee distance injecting products spare sealed muscle 8-1 root position 5mm at least, makes the splicing line of injecting products spare 8 leave the root of lampshade sealed muscle, lampshade bottom uniform in shaping; Straight jacking block end face with near die cavity one side side angle between 45 °～60 °, the moving die insert 1 that not only can reduce cooperation with it is because of the difficulty of processing that wedge angle occurs and bring and the mould product finning that the angle caused that collapses; And can avoid the excessive reduction that causes straight jacking block 7-1 bulk strength of jacking block angle; Straight jacking block 7-1 and moving die insert parting line are positioned at the first half of injecting products spare sealed muscle 8-1; The latter half can not produce splicing line, and when lampshade and lamp housing assembling, the encapsulating face is slick and sly; Helping glue flows; Simultaneously region of stress concentration reduces, and stress concentration point leaves stressed maximum position, has stopped the generation of light fixture product cracking phenomena.
Claims (3)
1. lampshade injection mold ejecting mechanism; It is characterized in that; It is made up of one group of ejecting unit (7) that is arranged in injection moulding die cavity periphery; Said ejecting unit (7) comprises straight jacking block (7-1), straight push rod (7-2) and hold-down screw (7-3), and said straight jacking block (7-1) is installed in the top of straight push rod (7-2) through hold-down screw (7-3), and directly the end face of jacking block (7-1) and moving die insert (1) end face mate; Straight jacking block end face be α near die cavity one side side angle, said straight jacking block near die cavity one side side minimum point and injecting products spare sealed muscle (8-1) root apart from being L.
2. a kind of lampshade injection mold ejecting mechanism according to claim 1 is characterized in that the lower end of said straight push rod (7-2) is fixed on the ejector pin retaining plate (4) of injection mold.
3. a kind of lampshade injection mold ejecting mechanism according to claim 2; It is characterized in that; Said straight jacking block (7-1) end face with near die cavity one side side angle=45 °～60 °, said straight jacking block is near die cavity one side side minimum point and injecting products spare sealed muscle (8-1) root distance L ﹥ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121164 CN202607984U (en) | 2012-03-28 | 2012-03-28 | Lampshade injection mold ejection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121164 CN202607984U (en) | 2012-03-28 | 2012-03-28 | Lampshade injection mold ejection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202607984U true CN202607984U (en) | 2012-12-19 |
Family
ID=47341715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220121164 Expired - Fee Related CN202607984U (en) | 2012-03-28 | 2012-03-28 | Lampshade injection mold ejection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202607984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481470A (en) * | 2013-10-08 | 2014-01-01 | 昆山金九亿精密金属有限公司 | Terminal box base mold |
| CN105415611A (en) * | 2015-12-31 | 2016-03-23 | 安徽中电兴发与鑫龙科技股份有限公司 | Circuit breaker transparent cover injection mold ejection mechanism |
| CN110406035A (en) * | 2019-08-28 | 2019-11-05 | 华域视觉科技(上海)有限公司 | Automobile headlamp lampshade and injection mold |
-
2012
- 2012-03-28 CN CN 201220121164 patent/CN202607984U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481470A (en) * | 2013-10-08 | 2014-01-01 | 昆山金九亿精密金属有限公司 | Terminal box base mold |
| CN105415611A (en) * | 2015-12-31 | 2016-03-23 | 安徽中电兴发与鑫龙科技股份有限公司 | Circuit breaker transparent cover injection mold ejection mechanism |
| CN110406035A (en) * | 2019-08-28 | 2019-11-05 | 华域视觉科技(上海)有限公司 | Automobile headlamp lampshade and injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20200328 |