CN111319196A - 免喷涂高光汽车进气格栅精密注塑模具 - Google Patents
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000003292 glue Substances 0.000 claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 description 17
- 239000004033 plastic Substances 0.000 description 17
- 238000001816 cooling Methods 0.000 description 10
- 238000001746 injection moulding Methods 0.000 description 8
- 239000003973 paint Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 238000005507 spraying Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
免喷涂高光汽车进气格栅精密注塑模具,包括定模复板和动模复板,定模复板下安装垫块、流道架、热嘴和定模框及定模镶块,动模复板上安装模脚、动模板和动模镶块,动模镶块与定模镶块之间有注塑成型的进气格栅,所述的热嘴呈多点顺序交错排列连接,包括在流道架的中心和两端各设置直线排列的端点进胶孔,在流道架的两侧各设置2—4组交错排列的侧点进胶孔,每个端点进胶孔和侧点进胶孔下各连接一个热嘴,且在每个端点进胶孔和侧点进胶孔的周围各设有加热管,在定模框和定模镶块中设置凹字型水孔,所述定模镶块的型腔面上设置排气结构,所述的排气结构包括在定模镶块型腔面的两侧上设置均布的排气槽,每个排气槽的深度H为0.02—0.03mm。
Description
技术领域
本发明涉及一种免喷涂急冷急热高光汽车进气格栅精密注塑模具,属于注塑模具领域。
背景技术
采用注塑模具生产塑料产品,例如汽车进气格栅。为了追求个性、时尚、科技感和高光泽度的效果,近年来高光黑漆效果的进气格栅成为流行首选。但受生产工艺的限制,目前的高光黑格栅的制造工艺都是通过喷涂高光漆料实现,喷漆所获得的零件外观好,性能稳定,但是对工艺要求高,喷漆技术限制易产生喷漆死角,易出现橘皮、麻点等油漆外观缺陷是的零件的合格率降低,产品不良率在20%-30%以上,且不能回收再利用。并且因为格栅美观和结构的需要,很多时候无法从正面放置浇口,只能将浇口反装,即将浇口设计在模具的动模侧,而常规的格栅浇口反装是将进胶口设计在斜顶中,结构复杂,寿命差,斜顶过多还会导致顶针板强度不足,部分产品还会因为形状限制无法设计斜顶。
发明内容
本发明的目的是为了克服已有技术的缺点,提供一种通过正面(定模)多点顺序进胶结构,结合急冷急热水孔设置,以及均布排气设计,顶出方便,产品表面高光、无熔接线,良品率高的免喷涂高光汽车进气格栅精密注塑模具。
本发明免喷涂高光汽车进气格栅精密注塑模具的技术方案是:包括模具定模复板和动模复板,定模复板下安装垫块,垫块之间设置流道架,定模复板中设置浇口,浇口连通流道架,流道架下连接热嘴,垫块下安装定模框,定模框中安装定模镶块,动模复板上安装模脚,模脚上安装动模板,动模板上安装动模镶块,动模镶块与定模镶块之间的间隙构成模腔,热嘴穿过定模框和动模镶块连通模腔,模腔中有注塑成型的进气格栅,其特征在于所述的热嘴呈多点顺序交错排列连接,包括在流道架的中心和两端各设置直线排列的端点进胶孔,在流道架的两侧各设置2—4组交错排列的侧点进胶孔,每个端点进胶孔和侧点进胶孔下各连接一个热嘴,且在每个端点进胶孔和侧点进胶孔的周围各设有加热管,在定模框和定模镶块中设置凹字型水孔,所述定模镶块的型腔面上设置排气结构,所述的排气结构包括在定模镶块型腔面的两侧上设置均布的排气槽,每个排气槽的深度H为0.02—0.03mm。
本发明公开了一种免喷涂高光汽车进气格栅精密注塑模具,当模具合模注塑时,塑料原料从浇口处注入,流到流道架中,然后再流到每个端点进胶孔和侧点进胶孔中,进入热嘴,再通过热嘴形成多点顺序进胶,对模腔进行注塑,使产品(进气格栅)成型,在注塑过程中,为了确保注塑填充饱满,塑料原料不提前冷却凝固,所以在每个端点进胶孔和侧点进胶孔的周围各设有加热管,在塑料原料流过时进行加热,当塑料原料注入模腔后,由于塑料原料的温度比较高,在模腔内会产生水汽,所以在定模镶块型腔面的两侧上设置均布的排气槽,每个排气槽的深度H为0.02—0.03mm,既保证排气,又不使塑料原料漏出模腔。同时,对产品进行水冷却,将冷却水注入凹字型水孔中,凹字型的水孔更靠近产品,可以使产品快速冷却定型,注塑结束。本方案通过加热、排气和快速冷却,达到即冷即热的注塑方式,生产出来的产品(进气格栅)表面高光,无需喷涂漆料,产品无熔接痕,质量好,档次高。
本发明的免喷涂高光汽车进气格栅精密注塑模具,所述的模脚之间设置上顶板和下顶板,上、下顶板上连接直顶杆和斜顶杆,直顶杆上连接直顶块,斜顶杆上连接斜顶块,直顶块和斜顶块与进气格栅的底面相接触,顶出时,由注塑机的推杆顶在下顶板上,带动下顶板和上顶板上顶,从而带动直顶杆和斜顶杆将产品顶出。在实际安装中,由于模具的高度比较高,所以将上、下顶板置于模脚的中间高度,已缩短直顶杆和斜顶杆的长度,保证其顶出的强度。所述凹字型水孔为分层结构,包括在定模框的两侧开制上横水孔,在定模镶块中开制下横水孔,上横水孔与下横水孔通过竖水孔连通。在加工上横水孔、下横水孔和竖水孔分别加工,再通过无缝装配连通,加工精度高,拼接无缝不漏水。
附图说明
图1是本发明免喷涂高光汽车进气格栅精密注塑模具结构示意图;
图2是图1的A—A截面示意图;
图3是本发明的多点顺序进胶结构示意图;
图4是本发明的排气槽分布示意图;
图5是本发明的凹字型水孔布置示意图。
具体实施方式
本发明涉及一种免喷涂高光汽车进气格栅精密注塑模具,如图1—图5所示,包括模具定模复板1和动模复板2,定模复板1下安装垫块3,垫块之间设置流道架4,定模复板1中设置浇口14,浇口连通流道架4,流道架下连接热嘴5,垫块3下安装定模框6,定模框中安装定模镶块7,动模复板2上安装模脚8,模脚上安装动模板9,动模板上安装动模镶块10,动模镶块10与定模镶块7之间的间隙构成模腔,热嘴5穿过定模框和动模镶块连通模腔,模腔中有注塑成型的进气格栅11,所述的热嘴5呈多点顺序交错排列连接,包括在流道架4的中心和两端各设置直线排列的端点进胶孔20,在流道架4的两侧各设置2—4组交错排列的侧点进胶孔21,每个端点进胶孔20和侧点进胶孔21下各连接一个热嘴5,且在每个端点进胶孔20和侧点进胶孔21的周围各设有加热管22,在定模框6和定模镶块7中设置凹字型水孔26,所述定模镶块7的型腔面上设置排气结构,所述的排气结构包括在定模镶块7型腔面的两侧上设置均布的排气槽25,每个排气槽的深度H为0.02—0.03mm。当模具合模注塑时,塑料原料从浇口14处注入,流到流道架4中,然后再流到每个端点进胶孔20和侧点进胶孔21中,进入热嘴5,再通过热嘴5形成多点顺序进胶,对模腔进行注塑,使产品(进气格栅11)成型,在注塑过程中,为了确保注塑填充饱满,塑料原料不提前冷却凝固,所以在每个端点进胶孔20和侧点进胶孔21的周围各设有加热管22,在塑料原料流过时进行加热,当塑料原料注入模腔后,由于塑料原料的温度还比较高,在模腔内会产生水汽,所以在定模镶块7型腔面的两侧上设置均布的排气槽25,每个排气槽的深度H为0.02—0.03mm,既保证排气,又不使塑料原料漏出模腔。同时,对产品进行水冷却,将冷却水注入凹字型水孔26中,凹字型的水孔更靠近产品,可以使产品快速冷却定型,注塑结束。本方案通过加热、排气和快速冷却,达到即冷即热的注塑方式,生产出来的产品(进气格栅)表面高光,无需喷涂漆料,产品无熔接痕,质量好,档次高。所述的模脚8之间设置上顶板12和下顶板13,上、下顶板上连接直顶杆15和斜顶杆16,直顶杆15上连接直顶块17,斜顶杆16上连接斜顶块18,直顶块17和斜顶块18与进气格栅11的底面相接触,顶出时,由注塑机的推杆顶在下顶板上,带动下顶板和上顶板上顶,从而带动直顶杆和斜顶杆将产品顶出。在实际安装中,由于模具的高度比较高,所以将上、下顶板置于模脚的中间高度,已缩短直顶杆和斜顶杆的长度,保证其顶出的强度。所述凹字型水孔26为分层结构,包括在定模框6的两侧开制上横水孔30,在定模镶块7中开制下横水孔31,上横水孔30与下横水孔31通过竖水孔32连通。在加工上横水孔30、下横水孔31和竖水孔32分别加工,再通过无缝装配连通,加工精度高,拼接无缝不漏水。
Claims (3)
1.免喷涂高光汽车进气格栅精密注塑模具,包括模具定模复板(1)和动模复板(2),定模复板(1)下安装垫块(3),垫块之间设置流道架(4),定模复板(1)中设置浇口(14),浇口连通流道架(4),流道架下连接热嘴(5),垫块(3)下安装定模框(6),定模框中安装定模镶块(7),动模复板(2)上安装模脚(8),模脚上安装动模板(9),动模板上安装动模镶块(10),动模镶块(10)与定模镶块(7)之间的间隙构成模腔,热嘴(5)穿过定模框和动模镶块连通模腔,模腔中有注塑成型的进气格栅(11),其特征在于所述的热嘴(5)呈多点顺序交错排列连接,包括在流道架(4)的中心和两端各设置直线排列的端点进胶孔(20),在流道架(4)的两侧各设置2—4组交错排列的侧点进胶孔(21),每个端点进胶孔(20)和侧点进胶孔(21)下各连接一个热嘴(5),且在每个端点进胶孔(20)和侧点进胶孔(21)的周围各设有加热管(22),在定模框(6)和定模镶块(7)中设置凹字型水孔(26),所述定模镶块(7)的型腔面上设置排气结构,所述的排气结构包括在定模镶块(7)型腔面的两侧上设置均布的排气槽(25),每个排气槽的深度H为0.02—0.03mm。
2.如权利要求1所述的免喷涂高光汽车进气格栅精密注塑模具,其特征在于所述的模脚(8)之间设置上顶板(12)和下顶板(13),上、下顶板上连接直顶杆(15)和斜顶杆(16),直顶杆(15)上连接直顶块(17),斜顶杆(16)上连接斜顶块(18),直顶块(17)和斜顶块(18)与进气格栅(11)的底面相接触。
3.如权利要求1所述的免喷涂高光汽车进气格栅精密注塑模具,其特征在于所述凹字型水孔(26)为分层结构,包括在定模框(6)的两侧开制上横水孔(30),在定模镶块(7)中开制下横水孔(31),上横水孔(30)与下横水孔(31)通过竖水孔(32)连通。
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