CN103331877A - Core-pulling structure used for solving color channeling of multicolor injection molding for car lamp - Google Patents
Core-pulling structure used for solving color channeling of multicolor injection molding for car lamp Download PDFInfo
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- CN103331877A CN103331877A CN2013102418493A CN201310241849A CN103331877A CN 103331877 A CN103331877 A CN 103331877A CN 2013102418493 A CN2013102418493 A CN 2013102418493A CN 201310241849 A CN201310241849 A CN 201310241849A CN 103331877 A CN103331877 A CN 103331877A
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- slide bar
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- scurrying
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Abstract
The invention relates to a core-pulling structure used for solving color channeling of multicolor injection molding for a car lamp and belongs to the technical field of car lamps. The core-pulling structure comprises an upper insert, a sliding rod and a lower insert, wherein the upper insert is fixedly connected to the upper end of the lower insert, the sliding rod is arranged between the upper insert and the lower insert, a guide groove is formed in the lower insert, the sliding rod is nested in the guide groove, a limiting structure is arranged between the sliding rod and the lower insert, one side of the front end of the lower insert is provided with a filling port structure, and the tail end of the sliding rod is provided with a handle structure used for pushing and pulling the sliding rod. The core-pulling structure is simple in structure and reasonable in design, and can be used for skillfully solving the problem of color channeling in any directions.
Description
Technical field
The invention belongs to and belong to the car light technical field, be specifically related to a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light.
Background technology
At present, automobile lamp company adopts when multi-color injection molded the light fixture outer lens, because materials of different colors is after mixing, flowability there are differences, cause not homochromy material in the intersection of color, wherein a kind of material of color can be scurried in another material, causes " scurrying look " phenomenon.From the angle of perception, scurry the look phenomenon and can cause technology coarse, it is inexquisite to do manual work, thereby causes the aesthetic values of car load to descend.For example, on automobile tail light, face shield has adopted the double-shot moulding of red white material, according to present double-shot molding method (the red material of first injection moulding, expect in vain in red material surface injection moulding then), from people's normal vision direction, usually the intersection in two kinds of colors presents the significantly red look phenomenon of scurrying in vain.As shown in Figure 1, after the injection moulding, the a-quadrant is red among the figure, the B zone is white, the C zone is hot plate welding welding muscle, with a-quadrant injection moulding simultaneously, also be red, from people's normal visual field direction (the d direction Fig. 1), because the red material thickness in C zone is different with the a-quadrant, and the C local product exists behind draw taper and the hot plate welding C area part to melt etc. factor, cause C zone with moulding border, a-quadrant and do not line up, loftier, simultaneously because " amplification " effect of the white transparent member in the redness outside (multiplication factor is directly proportional with the thickness of white material) causes " scurrying look " open defect of C zone formation more obvious.
Summary of the invention
Purpose of the present invention is exactly the defective at prior art, provides a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light.
The technical solution used in the present invention is: it comprise insert, slide bar and under insert, insert on described and be fixedly connected on down the upper end of inserting, described slide bar be arranged on insert and under insert between, insert under described and be provided with gathering sill, the guide section of described slide bar is nested to be loaded in the gathering sill, described slide bar and under be provided with position limiting structure between inserting, front end one side of inserting under described is provided with the sprue structure, described slide bar end is provided with the handle arrangement for the push-and-pull slide bar.
Further, described position limiting structure comprises second limited step that matches with first limited step that arranges in first limited step that arranges on the slide bar guide section and the gathering sill of inserting down.
Further, described first limited step and the second limited step section are respectively the L font, and described first limited step and the second limited step sharp corner are respectively equipped with first chamfering and second chamfering.
Further, described sprue structure is to be arranged on down the gap slot of front end one side of inserting, and described gap slot is connected with the gathering sill front end.
Further, described gap slot is shaped as oblique angle structure.
Further, described handle arrangement comprises that the slide bar end stretches out the push rod of suit in the hole with certain gradient that the part of gathering sill offers and the hole.
Further, be provided with draw-in groove between described slide bar guide section and the handle arrangement.
Further, described slide bar guide section front end is provided with the melt chute, and described melt chute is one section step surface that is lower than guide section.
Further, be provided with cooling water channel in inserting under described.
Further, described insert down go up the gathering sill both sides for on the sealing end face inserting and fixedly connected, the sealing end face is provided with first bolt hole, insert on described with seal part that end face fits be provided with seal end face on second bolt hole aimed at of first bolt hole.
The present invention is simple in structure, and is reasonable in design, can solve the look problem of scurrying of any direction dexterously.
Description of drawings
Fig. 1 is the prior art schematic diagram;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the Slide bar structure schematic diagram;
Fig. 4 is last insert structure schematic diagram;
Fig. 5 is following insert structure schematic diagram;
Fig. 6 is A-A place profile among Fig. 2;
Fig. 7 Principle of Process figure of loosing core during for the red material of injection moulding;
Fig. 8 is the injection moulding Principle of Process figure of loosing core when expecting in vain.
Among the figure: 1-cover half, 2-slide bar (2.1-guide section, 2.2-melt chute, 2.3-the first limited step, 2.4-the first chamfering, 2.5-draw-in groove, 2.6-hole, 2.7-push rod), 3-insert (3.1-gathering sill, 3.2-the second limited step, 3.3-the second chamfering, 3.4-gap slot, 3.5-sealing end face, 3.6-the first bolt hole, 3.7-cooling water channel), 4 down-on insert (4.1-the second bolt hole).
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, be convenient to be well understood to the present invention, but they do not constitute restriction to the present invention.
As shown in Figure 2, the present invention includes and insert 4, slide bar 2 and under insert 3, on insert and 4 be fixed on down 3 upper ends of inserting, slide bar 2 be located at insert 4 and under insert between 3 and can under insert and 3 slide.
As shown in Figure 3, slide bar guide section 2.1 front ends are provided with melt chute 2.2, and melt chute 2.2 is one section step surface that is lower than guide section 2.1; It is the L font that slide bar guide section 2.1 stage casings are provided with first limited step, 2.3, the first limited steps, 2.3 sections, and the sharp corner of first limited step 2.3 is provided with first chamfering 2.4; Slide bar 2 ends are established and are had the hole 2.6 with certain gradient, the push rod 2.7 of suits in the hole 2.6, and hole 2.6 has certain gradient, when mold releasability and drive in the process of bar motion, can drive slide bar 2 motions, thereby play the purpose of the demoulding of loosing core; Be provided with draw-in groove 2.5 between slide bar guide section 2.1 and the push rod 2,7, it act as the fixing and clamping of being convenient to whole slide bar 2.
As shown in Figure 4, inserting down 3 is provided with gathering sill 3.1, and slide bar guide section 2.1 can slide in gathering sill 3.1, slide bar guide section 2.1 is in the process of injection moulding, return by the motion on the gathering sill 3.1 of inserting down, isolate melt, make the border of different colours material neat; Insert down on 3 gathering sill 3.1 both sides for on the 4 sealing end faces 3.5 of fixedlying connected of inserting, sealing end face 3.5 is provided with first bolt hole 3.6, sealing end face 3.5 seals, and simultaneously injected plastics material is isolated; Being provided with second limited step, 3.2, the second limited steps, 3.2 sections that match with first limited step 2.3 that arranges on the slide bar guide section 2.1 in the gathering sill 3.1 is the L font, and the sharp corner of second limited step 3.2 is provided with second chamfering 3.3; Under 3 front ends, one side of inserting be provided with oblique angle gap slot 3.4, oblique angle gap slot 3.4 is connected with gathering sill 3.1 front ends; Under insert and be provided with cooling water channel 3.6 in 3, under insert 3, slide bar 2 and on insert that the motion back produces friction between 4, its caloric requirement is discharged by cooling water channel on every side 3.6, cooling water channel 3.6 is arranged along the direction of motion of loosing core, simultaneously also considered the cooling of other moving components is not exerted an influence, whole cooling water channel is cylindrical, in case stress raisers.
As shown in Figure 5, insert on 4 up and down insert 3 parts that fit of sealing end faces 3.5 be provided with seal end face 3.5 on second bolt hole 4.1 aimed at of first bolt hole 3.6.
The structure of loosing core among the present invention adopts high-carbon steel to make, and to keep higher intensity, the structure itself that prevents from loosing core is because size fluctuation causes product appearance to go wrong.
The principle that the present invention's process of loosing core realizes: as Fig. 7, shown in Figure 8, for having red white double-colored Shooting Technique, when the red material of mold injection, the a direction is red material injection moulding direction among the figure, in the process of red material mould matched moulds, slide bar 2 is under the impetus of push rod 2.7, move forward to range earlier, be slide bar 2 front ends with under 3 front ends of inserting align, at this moment, first limited step 2.3 on the slide bar 2 withstands down second limited step of inserting on 3 3.2, thereby with C among Fig. 8 loose core in the zone zone welding foot shut, begin the red material of injection moulding this moment, to the last red material of a-quadrant notes, red material mould begins the demoulding, the b direction is the direction of loosing core among the figure, push rod 2.7 withdraws from, in the process that push rod 2.7 withdraws from, drive slide bar 2 is withdrawn backward and is exposed up to the C zone, at this moment, under insert 3, form a cavity C zone between cover half 1 and the slide bar 2, this cavity C zone links to each other with slide bar 2 melt chutes 2.2, namely with under 3 gathering sills, 3.1 front ends of inserting be connected, when hot material injection moulding finishes, behind the dynamic model Rotate 180 °, the beginning injection moulding expects that in vain the c direction be to expect the injection moulding direction in vain among the figure, the B zone, white material is stamped in the C zone, because shown in oblique angle gap slot 3.4(Fig. 6 of 3 front ends of inserting down) with under gathering sill 3.1 front ends of inserting be connected, so white material can be entered in the C zone smoothly.The bubble that produces in the injection moulding process will be discharged from the cavity of melt chute 2.2 upper ends.After this, push rod continues slide bar 2 so that whole injecting products can normally take out from mould, so just to have finished the injection moulding process of whole double-colored product along the i.e. b direction withdrawal among the figure of direction of loosing core in the process of the injection moulding second time (white material) demoulding.The purpose of the white material of above-mentioned formation allows transmissive mirror exactly in normal visual line of sight, cannot see red white staggered zone in the C zone, scurries the look defective thereby eliminate.
The prerequisite of the present invention design is: the part of scurrying on the mould of look correspondence when occurring need have enough spaces to add the structure of loosing core, otherwise can interfere the regional area insufficient lubrication that causes mould with cooling water channel.
Realize that mode of the present invention realizes at bicolor injection mould, certainly also can and the like to other multi-color injection molded moulds.By the intersectional region at different colours, increase the new structure of loosing core, and optimize relevant cooling water channel and realize.
The content that this specification is not described in detail belongs to this area professional and technical personnel's known prior art.
Claims (10)
1. one kind is used for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it comprise insert, slide bar and under insert, insert on described and be fixedly connected on down the upper end of inserting, described slide bar be arranged on insert and under insert between, it is characterized in that: inserting under described is provided with gathering sill, the guide section of described slide bar is nested to be loaded in the gathering sill, described slide bar and under be provided with position limiting structure between inserting, front end one side of inserting under described is provided with the sprue structure, and described slide bar end is provided with the handle arrangement for the push-and-pull slide bar.
2. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described position limiting structure comprises second limited step that matches with first limited step that arranges in first limited step that arranges on the slide bar guide section and the gathering sill of inserting down.
3. according to claim 2 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described first limited step and the second limited step section are respectively the L font, and described first limited step and the second limited step sharp corner are respectively equipped with first chamfering and second chamfering.
4. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described sprue structure is to be arranged on down the gap slot of front end one side of inserting, and described gap slot is connected with the gathering sill front end.
5. according to claim 4 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described gap slot is shaped as oblique angle structure.
6. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described handle arrangement comprises that the slide bar end stretches out the push rod of suit in the hole with certain gradient that the part of gathering sill offers and the hole.
7. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: be provided with draw-in groove between described slide bar guide section and the handle arrangement.
8. according to claim 1 a kind of it is characterized in that: described slide bar guide section front end is provided with the melt chute for solving the multi-color injection molded structure of loosing core of scurrying look of car light, and described melt chute is one section step surface that is lower than guide section.
9. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: be provided with cooling water channel in inserting under described.
10. according to claim 1 a kind of for solving the multi-color injection molded structure of loosing core of scurrying look of car light, it is characterized in that: described insert down go up the gathering sill both sides for on the sealing end face inserting and fixedly connected, the sealing end face is provided with first bolt hole, insert on described with seal part that end face fits be provided with seal end face on second bolt hole aimed at of first bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310241849.3A CN103331877B (en) | 2013-06-19 | 2013-06-19 | A kind of for solving the multi-color injection molded pulled core structure of altering look of car light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310241849.3A CN103331877B (en) | 2013-06-19 | 2013-06-19 | A kind of for solving the multi-color injection molded pulled core structure of altering look of car light |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103331877A true CN103331877A (en) | 2013-10-02 |
| CN103331877B CN103331877B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310241849.3A Active CN103331877B (en) | 2013-06-19 | 2013-06-19 | A kind of for solving the multi-color injection molded pulled core structure of altering look of car light |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351312A (en) * | 2017-08-14 | 2017-11-17 | 上海小糸车灯有限公司 | A kind of double-colored back light lens prevents from altering the structure of color |
| CN113276356A (en) * | 2021-06-03 | 2021-08-20 | 温州长江汽车电子有限公司 | Injection mold of touch switch face lid assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001150491A (en) * | 1999-11-26 | 2001-06-05 | Sanshu Fine Tool:Kk | Method for dichroically molding and mold used therefor |
| CN200942572Y (en) * | 2006-08-31 | 2007-09-05 | 比亚迪股份有限公司 | Side core loosing mechanism |
| CN201755898U (en) * | 2010-07-21 | 2011-03-09 | 浙江模具厂 | Automobile lamp mold external core pulling reverse stripping mechanism |
| CN202357384U (en) * | 2011-11-16 | 2012-08-01 | 浙江天翀车灯集团有限公司 | Taper pin type slide block demolding mechanism of automobile lamp mold |
-
2013
- 2013-06-19 CN CN201310241849.3A patent/CN103331877B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001150491A (en) * | 1999-11-26 | 2001-06-05 | Sanshu Fine Tool:Kk | Method for dichroically molding and mold used therefor |
| CN200942572Y (en) * | 2006-08-31 | 2007-09-05 | 比亚迪股份有限公司 | Side core loosing mechanism |
| CN201755898U (en) * | 2010-07-21 | 2011-03-09 | 浙江模具厂 | Automobile lamp mold external core pulling reverse stripping mechanism |
| CN202357384U (en) * | 2011-11-16 | 2012-08-01 | 浙江天翀车灯集团有限公司 | Taper pin type slide block demolding mechanism of automobile lamp mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351312A (en) * | 2017-08-14 | 2017-11-17 | 上海小糸车灯有限公司 | A kind of double-colored back light lens prevents from altering the structure of color |
| CN107351312B (en) * | 2017-08-14 | 2023-12-01 | 华域视觉科技(上海)有限公司 | Structure for preventing color channeling of bicolor rear lamp lens |
| CN113276356A (en) * | 2021-06-03 | 2021-08-20 | 温州长江汽车电子有限公司 | Injection mold of touch switch face lid assembly |
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| Publication number | Publication date |
|---|---|
| CN103331877B (en) | 2015-08-12 |
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