CN102229228A - Injection mold easy to change bottle blank structure - Google Patents

Injection mold easy to change bottle blank structure Download PDF

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Publication number
CN102229228A
CN102229228A CN 201110094673 CN201110094673A CN102229228A CN 102229228 A CN102229228 A CN 102229228A CN 201110094673 CN201110094673 CN 201110094673 CN 201110094673 A CN201110094673 A CN 201110094673A CN 102229228 A CN102229228 A CN 102229228A
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mold
surface
core
lip
cavity
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CN 201110094673
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Chinese (zh)
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姜晓平
胡青春
谢国基
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广东星联精密机械有限公司
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Abstract

The invention discloses an injection mold easy to change a bottle blank structure. The injection mold mainly comprises a water core, a mold core, a mold core seat, a mold lip and a mold cavity; the cavity of the mold core seat sequentially consists of a cylindrical cavity, a first inner cone, a mold core seat inner hole surface and a second inner cone; the left end of the mold lip is provided with a mold lip inner hole surface, and the right end of the inner hole surface is provided with a bottleneck forming surface; the sum of the depth of the mold lip inner hole surface and the height of the bottleneck forming surface is a constant; the right end of the mold core outer cone is provided with a middle cylindrical surface of the mold core; the diameter of the mold core seat inner hole surface is equal to the diameter of the mold lip inner hole surface; and the mold core seat inner hole surface and the mold lip inner hole surface are positioned at the outer side of the middle cylindrical surface of the mold core, and a polyethylene terephthalate (PET) bottle blank thread is formed between the bottleneck forming surface of the mold lip and the outer circle surface of the mold core. The mold core seat is designed into a standard piece and is not directly associated with the bottleneck forming cavity, so the mold core seat does not need to be replaced when the bottleneck is replaced, the total thickness of the mold is kept unchangeable, the mold is favorable for standard production, and the mold is easily installed and adjusted.

Description

一种易于改变瓶坯结构的注坯模具 An easy changing of the injection molding die preform structure

技术领域 FIELD

[0001] 本发明涉及一种注坯模具,特别是涉及一种易于改变瓶坯中瓶口结构的注坯模具,该注坯模具用于饮料瓶成形。 [0001] The present invention relates to an injection molding mold, in particular, relates to an easy change in preform injection mold bottle preform structure, the injection molding die for molding beverage bottle.

背景技术 Background technique

[0002] 在饮料瓶的生产中,二步法吹瓶是先注塑瓶坯后,再通过对瓶坯进行加热吹瓶。 [0002] In the production of beverage bottles, the two-step blow molding preform is made by injection molding, and then to blow the preform by heating. 应用二步法吹瓶技术首先需要制造注坯模具,再用该模具注塑成型瓶坯。 Application of two-step injection blow molding technology is first necessary to manufacture the preform, mold and then injection molding the preform. 目前,塑料瓶坯注塑模具均为一模多腔,结构复杂。 At present plastic bottles are injection mold a multi-cavity mold, a complicated structure. 如图1-5所示,注坯模具主要包括水芯1、模芯3、模芯座8、 模唇5和模腔7 ;模芯3为空心的圆柱体结构,模芯3的空心内设有水芯1,水芯1中心为一内孔,水芯1通过圆柱面插接在固芯板2上,水芯1主要用于给模腔内通冷却水。 Shown in Figure 1-5, including the water injection preform core 1, the core 3, the mandrel holder 8, and the cavity lip 5 7; mold core 3 is hollow cylindrical structure, a hollow mandrel 3 core 1 is provided with water, a water bore hole 1 as the center, by a cylindrical surface of the core water in the plug on a solid core board 2, water is mainly used for the core 1 through the cooling water to the mold cavity. 在模芯3 的外侧从左到右依次设有模芯座8、模唇5和模腔7 ;模芯座8、模腔7、模唇5的内孔与模芯3的成型圆柱面形成型腔,模腔7右端中心设有灌注孔12,灌注孔12与型腔相通,用于塑料灌注,瓶坯体9在型腔成形;模芯座8内腔依次由圆柱形空腔、第一内锥T2、参与瓶口端部的成型区B和第二内锥S2构成;瓶口端部的成型区B和模唇5左端的内圆面连接,一起与模芯3外圆面间形成PET瓶坯螺纹牙。 3 on the outside of the core of the core from left to right seat 8 is provided, lip 5 and the cavity 7; 8 base mold core, the mold cavity 7, with the mandrel bore 5 of the molding die lip 3 of the cylindrical surface is formed cavity, the central cavity 7 is provided with a right end filling hole 12, filling bore 12 communicates with the cavity, for plastic filling, molding preform 9 in the cavity; sequentially lumen mandrel holder 8 by a cylindrical cavity of a cone T2, participate finish end portion forming region B and a second inner cone configuration S2; inner circular surface finish forming region B and a lip end portion 5 is connected to the left end, between the outer circumferential surface 3 with the mandrel thread forming PET preforms. 瓶坯口部的结构由模唇5、模芯3、模芯座8所形成的注塑腔决定。 Structure preform mouth portion, the core 3, the injection cavity mold core holder 8 is formed is determined by the die lip 5. 模芯座8左端上设有凸台结构,通过螺栓将模芯3固定在固芯板2上;模芯座8的第一内锥T2套在模芯3的外锥Tl上,模芯座8的第二内锥S2套在模唇5左侧外锥Sl上,保证模唇5与模芯3内孔同轴;在固芯板2右端,模芯座8的外侧依次设有推板4、耐磨板13和滑板6,其中推板4用于PET瓶坯9脱模时推动滑板6右移,进而模唇5右移;耐磨板13为含油铜板,用螺钉固连在推板4上,能减少运动滑板6的摩擦力;在模唇5右侧设有模腔套14,模腔套14的内锥套在模唇5的右侧外锥上,模腔7外侧设有固腔板11 ;模腔套14通过止口卡住模腔7,并用螺钉固接在固腔板11上,保证模腔7内孔与模唇5内孔同轴。 The mandrel holder 8 provided on the left end of the boss structure, the core 3 by a bolt immobilized on a solid core sheet 2; a first inner conical mandrel holder 8 is fitted over the mandrel T2 outer cone Tl 3, the mandrel base S2 of the second inner cone 8 on the left sleeve 5 outside the lip cone Sl is, to ensure that the inner lip 53 is coaxial with the mandrel bore; solid core plate 2 in the right end of the outer mandrel holder 8 are sequentially provided with a push plate 4, the wear plate 13 and the slide 6, wherein the pusher slide plate 4 is pushed to the right of PET preforms 6 9 release, turn right lip 5; oil wear plate 13 is a copper plate, secured with a screw push the upper plate 4, can reduce the friction of movement of the slider 6; cavity provided in the right sleeve lip 514, inner cone sleeve cavity mold 14 on the right side of the outer cone sleeve lip 5, is provided outside the cavity 7 with solid cavity plate 11; the cavity 14 through the sleeve spigot stuck cavity 7, and fixed with screws on a solid cavity plate 11 to ensure that the inner cavity 7-hole hole proper alignment with the lip 5. 模腔套14起模腔7的定位作用,固腔板11起固定模腔7作用。 Positioning sleeve 14 acting from the cavity 7 of the mold cavity, the cavity plate 11 from the fixed solid cavity 7 action. 压块15用于将灌注孔12固定在固腔板11上。 Pressing block 15 for the perfusion holes 12 immobilized on a solid cavity plate 11. 第一内锥T2、第二内锥S2、模唇5左侧外锥Si、模芯座8的第二内锥S2、模唇5的右侧外锥以及模腔套14的内锥套的锥度为10-20°。 A first inner cone T2, S2 second inner cone, outer cone left lip 5 Si, the second mandrel holder cone S2 8, the lip 5 and the right side of the outer cone sleeve inner conical cavity 14 of the sleeve taper is 10-20 °.

[0003] 为了满足冷、热灌装瓶对瓶口结构尺寸的改变,以及瓶口轻量化也需要对瓶口的尺寸或结构进行变化,包括瓶口总高H发生改变、瓶口外径及形状发生改变以及瓶口总高、 瓶口外径和形状都发生改变。 [0003] In order to meet cold, hot-fill bottle neck structure to change the size, weight and finish need to be changed to the size or structure of the finish, the finish comprising a total height H changes, the shape of the bottle and the outer diameter change and finish total height, outer diameter of the finish and shape change. 由于瓶坯口部的结构由模唇5、模芯3、模芯座8所形成的注塑腔决定,当不改变图2中瓶身的尺寸,只改变瓶口的尺寸或结构时,注坯模具必须更换作为瓶口成型主体部分的模唇5、模芯3和模芯座8,还需更换模唇5的支承和连接件。 Since the structure of the preform by the lip of the mouth portion 5, the core 3, decide an injection cavity mold core holder 8 is formed, when the bottle is not changed in size in FIG. 2, only changing the size or structure of the bottle, injection molding 5 must be replaced die lip formed as a body portion of the bottle, the mandrel 3 and the mold core holder 8, the support lip and the need to replace the connecting member 5. 不仅需加工制造新的模唇而且需加工制造新的支撑联接部件模芯、模芯座;由于模唇5厚度A的改变,将造成模具总厚度的改变,这将增加制造成本、工人装拆劳动强度和模具的装配难度。 It requires not only manufacturing a new die lip and the need to support the new manufacturing mold core coupling member, core holder; due to the change of the thickness A of lip 5, causes a change in the total thickness of the mold, which will increase the manufacturing cost, assembly and disassembly of workers difficulty and labor intensity of assembly mold.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是针对现有技术存在的制造成本高、结构复杂、维护安装调整困难,难以满足消费者的个性化需求,提供一种结构简单、成本低、维护调整容易、互换性好、能保证产品质量,且利于系列化、标准化、自动化批量生产的易于改变瓶坯结构的注坯模具。 [0004] The present invention solves the technical problem for the high manufacturing cost of the prior art, complex structure, maintenance, installation and adjustment difficulties, it is difficult to meet consumer demand for personalized, provide a simple, low cost, easy maintenance adjustment , interchangeability, to ensure product quality, and is conducive to serialization, standardized, automated mass production injection molding mold is easy to change the structure of the preform.

[0005] 本发明的目的通过如下技术方案实现: [0005] The object of the present invention is achieved by the following technical solutions:

[0006] 一种易于改变瓶坯结构的注坯模具,主要包括水芯、模芯、模芯座、模唇和模腔;模芯为空心的圆柱体结构,模芯的空心内设有水芯,水芯插接在固芯板上;在模芯的外侧从左到右依次设有模芯座、模唇和模腔;模腔、模唇的内孔与模芯的成型圆柱面形成型腔,模腔右端中心设有灌注孔,灌注孔与型腔相通;模芯座的第一内锥套在模芯的外锥上,模芯座的第二内锥套在模唇左侧外锥上;在固芯板右端,模芯座的外侧依次设有推板、耐磨板和滑板,耐磨板为含油铜板,固连在推板上;在模唇右侧设有模腔套,模腔套的内锥套在模唇的右侧外锥上,模腔外侧设有固腔板;模腔套通过止口卡住模腔,模腔套固接在固腔板上;所述模芯座的内腔依次由圆柱形空腔、第一内锥、模芯座内孔面和第二内锥构成;所述模唇左端部设有模唇内孔面,内孔面右端 [0006] A preform injection mold is easy to change the structure of the preform, including water core, mold core, mold core holder, and a lip mold cavity; mold core a hollow cylindrical structure, the hollow core features are water core, water core plug on a solid core sheet; at the outside of the mandrel the mandrel holder is provided with left to right, and the lip cavity mold; cavity forming a cylindrical surface, the inner mandrel bore and forming die lip cavity, filling the cavity with the right end of the central hole, filling the hole communicating with the cavity; a first inner conical sleeve mold core holder on the outer cone of the mandrel, the second mandrel holder drogue left the die lip an outer cone; the right end of the solid core plate, the outer core has a base sequence push plate, wear plates and the slide, as oleaginous copper wear plates, fixedly connected to the push plate; die lip is provided in the right molding cavity sets, the cavity within sleeve drogue on the right side of the outer cone of the die lip, the outer cavity is provided with a solid chamber plate; spigot through the sleeve cavity mold cavity stuck, the sleeve cavity mold cavity plate fixed to the solid; said mandrel holder in turn lumen, a first inner cone, the inner surface of the mandrel bore and the second inner cone is constituted by a cylindrical cavity; the left end portion provided with an inner lip lip bore surface, the inner bore surface right 设有瓶口成形面;模唇内孔面深度和瓶口成形面高度之和为常数;所述模芯外锥右端设有模芯中间圆柱面;模芯座内孔面与模唇内孔面之间留有0.01-0. 05mm排气间隙,模芯座内孔面直径=模唇内孔面直径;模芯座内孔面与模唇内孔面位于模芯中间圆柱面的外侧,模芯座内孔面直径以及模唇内孔面直径与模芯中间圆柱面直径之间都留有0. 10-0. 30mm避空间隙;模唇的瓶口成形面与模芯外圆面间形成PET瓶坯螺纹牙。 With bottle molding surface; lip and the inner bore surface finish molding surface depth and height is constant; right outer cone of the mandrel core with the intermediate cylindrical surface; lip inner surface of the bore hole die mold core holder 0.01-0 05mm exhaust leaving a gap, the inner bore surface of the mold core seat diameter = diameter of the die lip surface between the inner bore surface; the outer surface of the mandrel base hole die lip and the inner surface of the hole in the middle of the cylindrical surface of the mandrel, 0. mandrel holder 10-0 are left between the inner diameter of the bore surface and inner bore surface intermediate lip diameter of 30mm core diameter cylindrical surface to avoid empty gaps; inter finish molding surface of the die lip and the outer surface of the mandrel thread forming PET preforms.

[0007] 为进一步实现本发明目的,所述模芯中间圆柱面直径大于瓶口外径3_6mm,并在模芯中间圆柱面右端端部开有一个沉孔。 [0007] In order to further achieve the object of the present invention, the intermediate cylindrical surface of the core diameter is greater than the outer diameter of the container finish 3_6mm, and has a counterbore opening in the right end to end of the intermediate cylindrical surface of the mandrel.

[0008] 所述灌注孔通过压块固定在固腔板上。 [0008] The hole filling chamber immobilized on a solid plate by clamps.

[0009] 所述第一内锥、第二内锥、模唇左侧外锥、模芯座的第二内锥、模唇的右侧外锥以及模腔套的内锥的锥度为10-20°。 [0009] The first inner cone and second inner cone, outer cone left lip, a second inner conical mold core holder, the right outer cone and the inner cone of the die lip cavity sleeve taper 10- 20 °.

[0010] 所述水芯通过圆柱面插接在固芯板上. [0010] The water-core cylindrical surface by a solid plug in the core plate.

[0011] 所述模芯座左端上设有凸台结构,通过凸台结构上设置的螺栓将模芯固定在固芯板上。 [0011] The boss structure is provided on the left end of the mandrel holder, by a bolt disposed on the boss structure immobilized on a solid mandrel core plate.

[0012] 与现有技术相比,本发明具有如下优点: [0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1.本发明将模芯座设计为标准件,与瓶口成型腔不直接关联,更换瓶口时不需要更换模芯座。 [0013] 1. The present invention will be designed as a standard core base member, it is not directly associated with the finish molding cavity without replacing the core replacement bottle holder.

[0014] 2.本发明模唇总高不变,更换瓶口时不需要更换支承模唇的滑板、模腔套和安装螺丝。 [0014] 2. The present invention generally lip high constant need to replace the slide plate support lip bottle replacement, and the mold cavity cover mounting screws.

[0015] 3.本发明保证模具总厚度不变,利于标准化生产,而且易于模具安装调整。 [0015] 3. The present invention ensures that the total thickness of the same mold, facilitate standardized production, installation and adjustment and easy to mold. 附图说明 BRIEF DESCRIPTION

[0016] 图1是现有瓶坯注坯模具结构示意图; [0016] FIG. 1 is a schematic structure of a conventional preform injection molding die;

[0017] 图2是现有瓶口成型腔零件的组装配合关系图; [0017] FIG. 2 is an assembled view of a prior relationship with the finish molding cavity part;

[0018] 图3是图1中模芯座的结构示意图; [0018] FIG. 3 is a schematic structural view of the mandrel holder of FIG. 1;

[0019] 图4是图1中模唇的结构示意图; [0019] FIG. 4 is a schematic view of the die lip in Figure 1;

[0020] 图5是图1中模芯的结构示意图。 [0020] FIG. 5 is a schematic view of the mandrel of FIG.

[0021] 图6是本发明瓶坯注坯模具结构示意图; [0021] FIG. 6 is a schematic view of a mold structure of the present invention, injection molding preforms;

4[0022] 图7是本发明瓶口成型腔零件的组装配合关系图; 4 [0022] FIG. 7 is a bottle of the present invention is assembled with the molding cavity part diagram;

[0023] 图8是图6中模芯座的结构示意图; [0023] FIG. 8 is a schematic view of the mandrel holder of FIG 6;

[0024] 图9是图6中模唇的结构示意图; [0024] FIG. 9 is a schematic structural diagram of a die lip 6;

[0025] 图10是图6中模芯的结构示意图。 [0025] FIG. 10 is a schematic view of the mandrel 6 in FIG.

[0026] 具体实施方法 [0026] DETAILED DESCRIPTION Method

[0027] 下面结合附图和实施方式对本发明作进一步的说明,但是实施方式并不构成对本发明要求保护范围的限制。 [0027] accompanying drawings and the following embodiments of the present invention will be further described, but the embodiment is not intended to limit the scope of the claimed invention.

[0028] 如图6、7所示,注坯模具主要包括水芯1、模芯3a、模芯座8a、模唇fe和模腔7 ;模芯3a为空心的圆柱体结构,模芯3a的空心内设有水芯1,水芯1中心为一内孔,水芯1通过圆柱面插接在固芯板2上,水芯1主要用于给模腔内通冷却水。 [0028] Figures 6, 7, the water injection blow mold includes a core, the core 3a, the mandrel holder 8a, fe lip 7 and the cavity; core 3a is a hollow cylindrical structure, the core 3a equipped with a hollow core 1 of water, a water bore hole 1 as the center, by a cylindrical surface of the core water in the plug on a solid core board 2, water is mainly used for the core 1 through the cooling water to the mold cavity. 在模芯3a的外侧从左到右依次设有模芯座8a、模唇fe和模腔7 ;模腔7、模唇5的内孔与模芯3a的成型圆柱面形成型腔,模腔7右端中心设有灌注孔12,灌注孔12与型腔相通,用于塑料灌注;瓶坯体9在型腔成形。 3a, the outside of the core from left to right with the mandrel holder 8a, fe lip and cavity 7; 7 cavity, lip forming a cylindrical surface 5 and the inner bore of the core 3a formed in the cavity, the cavity 7 has a right end central pouring aperture 12, the pouring aperture 12 communicating with the cavity, for plastic infusion; molded preform 9 in the cavity. 模芯座8a左端上设有凸台结构,通过凸台结构上设置的螺栓将模芯3固定在固芯板2上;模芯座8a的第一内锥T2套在模芯3的外锥Tl上,模芯座8a的第二内锥S2套在模唇5左侧外锥Sl上,保证模唇fe与模芯3a内孔同轴;在固芯板2右端,模芯座8a的外侧依次设有推板4、耐磨板13和滑板6,其中推板4用于PET瓶坯9脱模时推动滑板6右移, 进而模唇5右移;耐磨板13为含油铜板,用螺钉固连在推板4上,能减少运动滑板6的摩擦力;在模唇如右侧设有模腔套14,模腔套14的内锥套在模唇fe的右侧外锥上,模腔7外侧设有固腔板11 ;模腔套14通过止口卡住模腔7,并用螺钉固接在固腔板11上,保证模腔7内孔与模唇fe内孔同轴。 The core is provided with boss structure left seat 8a by a bolt provided on the boss structure in the mold core 3 is fixed on a solid core sheet 2; a first inner conical mold core holder 8a T2 of the outer sleeve tapered mandrel 3 on Tl, the second mandrel holder 8a inner conical sleeve S2 of the lip 5 on the left side of the outer cone Sl is, to ensure that the die lip 3a fe and the core bore coaxially; solid core plate 2 in the right end of the mandrel holder 8a 4 are sequentially provided outside of the push plate, the wear plate 13 and the slide 6, wherein the pusher 6 to the right slide plate 4 is pushed for releasing PET preforms 9, further lip 5 to the right; oil wear plate 13 is a copper plate, secured with screws on the push plate 4, can reduce the friction of movement of the slider 6; die lips, such as the right sleeve 14 is provided with a mold cavity, the cavity inner cone sleeve 14 is fitted over the outer cone of the right lip fe , outer cavity 7 is provided with a solid chamber plate 11; 7-hole hole proper alignment within the sleeve lip fe cavity 14 through the cavity 7 spigot stuck, and fixed with screws on a solid cavity plate 11, and to ensure that the cavity . 模腔套14起模腔7的定位作用,固腔板11起固定模腔7作用。 Positioning sleeve 14 acting from the cavity 7 of the mold cavity, the cavity plate 11 from the fixed solid cavity 7 action. 压块15用于将灌注孔12固定在固腔板11上。 Pressing block 15 for the perfusion holes 12 immobilized on a solid cavity plate 11. 第一内锥T2、第二内锥S2、模唇5左侧外锥Si、模芯座8的第二内锥S2、模唇5的右侧外锥以及模腔套14的内锥套的锥度为10-20°。 A first inner cone T2, S2 second inner cone, outer cone left lip 5 Si, the second mandrel holder cone S2 8, the lip 5 and the right side of the outer cone sleeve inner conical cavity 14 of the sleeve taper is 10-20 °.

[0029] 如图8所示(对比图3),模芯座8a的内腔依次由圆柱形空腔、第一内锥T2、长度为C,直径为P的模芯座内孔面和第二内锥S2构成。 [0029] As shown in FIG. 8 (compare FIG. 3), the lumen of the mandrel holder 8a by a cylindrical cavity in turn, the first inner cone T2, the length is C, the core diameter of the seat surface and the inner bore of the P two cone configuration S2.

[0030] 如图9所示(对比图4),模唇fe左端部设计一直径为N,深度为E的模唇内孔面, 内孔面右端设有高度为H的瓶口成形面;模唇内孔面深度E和瓶口成形面高度H之和为常数。 [0030] As shown in FIG. 9 (compare Figure 4), lip design fe a left end portion diameter is N, a depth of the inner die lip surface E of the bore, the bore is provided with a right end surface of the height H of the molding surface of the finish; inner die lip bore surface finish and a depth E of the forming surface and the height H is constant.

[0031] 如图10所示,(对比图5),模芯外锥Tl右端设有直径为M,长度为D的模芯中间圆柱面,模芯中间圆柱面右端设有沉孔G。 [0031] As shown in FIG. 10, (compare FIG. 5), the mandrel outer cone Tl right cylindrical surface with a diameter intermediate the mandrel M, the length D of the intermediate core is provided with a right end surface of the cylindrical counterbore G.

[0032] 模芯座中长度为C,直径为P的模芯座内孔面与模唇fe左端直径为N,深度为E的模唇内孔面留有0. 01-0. 05mm排气间隙,P = N ;模芯座内孔面与模唇内孔面位于模芯中间圆柱面的外侧,为了不干涉成型配合,模芯座内孔面直径P以及模唇内孔面直径N与模芯中间圆柱面直径M之间都留有0. 10-0. 30mm避空间隙;模唇5a中高度为H的瓶口成形面与模芯3a外圆面间形成PET瓶坯螺纹牙。 [0032] The inner surface of the core die lip orifice seat length is C, the inner diameter of the mandrel base hole left end surface of the die lip diameter fe P is N, E depth leaving a 0. 01-0. 05mm exhaust gap, P = N; mold core holder and the inner surface of the inner bore hole surface of the lip mold core located in the middle of the outer cylindrical surface, in order to not interfere with the molding, the core diameter of the seating surface of the inner bore P and an inner die lip surface hole diameter and N 0. 10-0 30mm have left the nip between the intermediate space to avoid core diameter of the cylindrical surface M;. height between the lip 5a of the outer circumferential surface 3a and the surface of the core thread formed of PET preforms is H shaped bottle. 为了使成型不产生飞边,模芯中间圆柱面直径M 大于瓶口外径3-6mm,并在模芯中间圆柱面右端端部开有一个沉孔G。 In order not to the molding burrs, the intermediate cylindrical surface of the mandrel M is larger than the finish outside diameter of 3-6mm diameter, and a counterbore G. opened in the right end to end of the intermediate cylindrical surface of the mandrel

[0033] 为了适应制备不同高度的瓶口要求,控制模唇内孔面深度E以及相对应的模芯中间圆柱面长度D进行高度调整,如要瓶口高度增加,就减少模唇内孔面深度E和模芯中间圆柱面长度D的值,如可由21mm调整到17mm。 [0033] In order to meet the requirements of different heights finish preparation, the control depth die inner lip bore surface E and the corresponding cylindrical surface of the core intermediate the length D of height adjustment, such as to increase the height of the bottle, reducing the inner bore surface lip E value of the depth and the intermediate cylindrical surface of the core length D, as adjusted by 21mm to 17mm.

[0034] 本发明将图3所示模芯座8右端参与瓶口端部的成型区B改到模芯座内孔面,模芯座8a不参与瓶口成型,模芯座8a变为一个标准零件;模芯座内孔面与图10中模芯3a中直径为M,长度为D的模芯中间圆柱面配合。 [0034] The present invention will be shown in Figure 3 involved in the mandrel holder 8 forming the right end portion of the region B changed to finish the mandrel bore surface of the seat, the seat core is not involved in bottle molding 8a, 8a into a mold core holder standard parts; core intermediate the core holder 10 3a inner bore diameter surface of the FIG is M, the length D of the cylindrical surface with the core. 模唇fe左端部设计一直径为N,深度为E的模唇内孔面,模唇内孔面与图10中直径为M,长度为D的模芯中间圆柱面配合,既能保证瓶口注塑时的同轴度,又便于安装。 Die lip design fe a left end portion diameter is N, a depth of the inner die lip surface E of the bore, the inner die lip surface hole diameter and 10 is M, the length of the core with the intermediate cylindrical surface D, can ensure bottle concentricity during injection, and easy to install. 现有技术中,模唇与模芯没有直接配合位,通过改变模唇内孔面深度E可调整瓶口高度H。 In the prior art, the die lip is not directly fitted with the core bit, by changing the die lip to adjust the depth E of the inner bore surface finish height H.

[0035] 本发明可根据瓶口高度要求进行改变,使模唇总高不变,即模唇内孔面深度E和瓶口成形面高度H之和为常数。 [0035] The present invention may be changed according to claim bottle height, so that the total height of the same die lip, i.e. the lip surface of the inner bore depth E and the height H of the molding surface finish and constant. 长度为D,直径M为模芯中间圆柱面主要是与模唇fe左端部直径为N,深度为E的模唇内孔面进行配合,其配合间隙也是模唇、模芯座的排气间隙,其排气更顺畅,一般取0. 15-0. 25。 Length is D, the diameter of the mandrel M of the intermediate cylindrical surface and the lip is mainly a left end portion diameter fe is N, a depth of the inner die lip surface E were blended hole, with the gap is also a lip, an exhaust gap mandrel base which the exhaust gas more smoothly, and generally 0. 15-0. 25.

[0036] 本发明在传统的模唇零件结构基础上,分离定位尺寸与成型尺寸,使两部分不互相干涉。 [0036] In the present invention, the conventional die lip part structure, based on the size of the separate localization molding size, so that the two parts do not interfere with each other. 对于瓶口尺寸的改变,只要更换模唇、模芯即可,而不用更换模芯座。 For changing the bottle size, as long as the replacement of the die lip, the mandrel can be, without replacing the mandrel holder. 通过改变模唇、模芯座配合间隙,能使瓶口部的排气空间更大,瓶口不容易起毛刺;因模唇总高不变,能保证模具总厚度不变,所以更换瓶口时不需要更换支承模唇的滑板、模腔套和安装螺丝,利于标准化生产,而且易于模具安装调整,有利于减少制造成本、简化结构、降低维护安装费用。 By changing the lip, the core holder with the gap, the space can more exhaust finish portion, the finish is not easy since the burr; total height constant due to the lip, to ensure that the total thickness of the same mold, so that the replacement bottle No replacement slide plate support lip, and the mold cavity cover mounting screws, facilitate standardized production, installation and adjustment and easy to mold, it helps to reduce the manufacturing cost, simplify the structure, reduce the maintenance cost of installation.

Claims (6)

  1. 1. 一种易于改变瓶坯结构的注坯模具,主要包括水芯、模芯、模芯座、模唇和模腔;模芯为空心的圆柱体结构,模芯的空心内设有水芯,水芯插接在固芯板上;在模芯的外侧从左到右依次设有模芯座、模唇和模腔;模腔、模唇的内孔与模芯的成型圆柱面形成型腔,模腔右端中心设有灌注孔,灌注孔与型腔相通;模芯座的第一内锥套在模芯的外锥上,模芯座的第二内锥套在模唇左侧外锥上;在固芯板右端,模芯座的外侧依次设有推板、耐磨板和滑板,耐磨板为含油铜板,固连在推板上;在模唇右侧设有模腔套,模腔套的内锥套在模唇的右侧外锥上,模腔外侧设有固腔板;模腔套通过止口卡住模腔,模腔套固接在固腔板上;其特征在于:所述模芯座的内腔依次由圆柱形空腔、第一内锥、模芯座内孔面和第二内锥构成;所述模唇左端部设有模唇内孔面, A preform injection mold is easy to change the structure of the preform, including water core, mold core, mold core holder, and a lip mold cavity; mold core a hollow cylindrical structure, equipped with a hollow core mandrel water , the water-contact connector on a solid core sheet; at the outside of the mandrel the mandrel holder is provided with left to right, and the lip cavity mold; molding surface of the cylindrical cavity, the inner lip of the hole forming mandrel type cavity, filling the cavity with the right end of the central hole, filling the hole communicating with the cavity; a first inner conical sleeve mold core holder on the outer cone of the mandrel, the second mandrel holder inner conical sleeve in the left-side lip on the cone; the right end of the solid core plate, the outer core has a base sequence push plate, wear plates and the slide, as oleaginous copper wear plates, fixedly connected to the push plate; sleeve cavity provided in the right side of the lip , cavity inner cone sleeve fitted over the lip of the right side of the outer cone, the outer cavity is provided with a solid chamber plate; spigot through the sleeve cavity mold cavity stuck, the sleeve cavity mold cavity plate fixed to the solid; the characterized in that: said mandrel holder in turn lumen, a first inner cone, mandrel holder bore and a second inner tapered surface composed of a cylindrical cavity; a left end portion of the lip provided with the inner bore surface lip, 孔面右端设有瓶口成形面;模唇内孔面深度和瓶口成形面高度之和为常数;所述模芯外锥右端设有模芯中间圆柱面;模芯座内孔面与模唇内孔面之间留有0.01-0. 05mm排气间隙,模芯座内孔面直径=模唇内孔面直径;模芯座内孔面与模唇内孔面位于模芯中间圆柱面的外侧,模芯座内孔面直径以及模唇内孔面直径与模芯中间圆柱面直径与之间都留有0. 10-0. 30mm避空间隙;模唇的瓶口成形面与模芯外圆面间形成PET瓶坯螺纹牙。 Bottle provided with a right end surface of the hole forming surface; lip and the inner bore surface finish molding surface depth and height is constant; said mandrel intermediate the outer cone is provided with a right end surface of the cylindrical core; mold core and the mold base inner bore surface 0.01-0 05mm exhaust leaving a gap, the inner surface of the mold core bore hole diameter = diameter of the inner die lip surface between the inner bore surface of the lip; intermediate cylindrical surface of the inner core mandrel bore and the inner die lip surface is located bore surface the outer, intermediate core holder bore diameter surface of the die lip and the inner surface of the bore diameter of the cylindrical surface of the mandrel diameter 0. 10-0 are left between 30mm and avoid empty gaps;. finish molding surface of the die lip and the mandrel PET preform is formed between the outer peripheral surface of the thread.
  2. 2.根据权利要求1所述的易于改变瓶坯结构的注坯模具,其特征在于:所述模芯中间圆柱面直径大于瓶口外径3-6mm,并在模芯中间圆柱面右端端部开有一个沉孔。 The preform is easy to change the structure of the injection molding mold according to claim 1, wherein: said intermediate cylindrical surface of the core diameter larger than an outer diameter of 3-6mm bottle, and opened in the right end to end of the intermediate cylindrical surface of the mandrel there is a sink hole.
  3. 3.根据权利要求1所述的易于改变瓶坯结构的注坯模具,其特征在于:所述灌注孔通过压块固定在固腔板上。 3. Easy to change the configuration of the preform injection molding die according to claim 1, wherein: said pouring aperture immobilized on a solid plate by briquetting chamber.
  4. 4.根据权利要求1所述的易于改变瓶坯结构的注坯模具,其特征在于:所述第一内锥、 第二内锥、模唇左侧外锥、模芯座的第二内锥、模唇的右侧外锥以及模腔套的内锥的锥度为10-20° 。 The preform is easy to change the structure of the injection molding mold according to claim 1, characterized in that: said first second inner cone inner cone and second inner cone, outer cone left lip, the mandrel base right outer cone and the inner cone of the die lip cavity sleeve taper 10-20 °.
  5. 5.根据权利要求1所述的易于改变瓶坯结构的注坯模具,其特征在于:所述水芯通过圆柱面插接在固芯板上。 The preform is easy to change the structure of the injection molding mold according to claim 1, wherein: said water core cylindrical surface by a solid plug in the core plate.
  6. 6.根据权利要求1所述的易于改变瓶坯结构的注坯模具,其特征在于:所述模芯座左端上设有凸台结构,通过凸台结构上设置的螺栓将模芯固定在固芯板上。 The preform is easy to change the structure of the injection molding mold according to claim 1, wherein: the boss structure is provided on the left end of the mandrel holder, by a bolt disposed on the boss structure immobilized on a solid mandrel the core board.
CN 201110094673 2011-04-15 2011-04-15 Injection mold easy to change bottle blank structure CN102229228A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102990870A (en) * 2013-01-04 2013-03-27 广东星联精密机械有限公司 Bottle perform mold structure provided with bottle opening groove

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CN1200068A (en) * 1996-09-05 1998-11-25 株式会社青木固研究所 Method of molding inner thread on neck portion of preform
JP2001105477A (en) * 1999-10-08 2001-04-17 Taisei Kako Co Ltd Method for manufacturing laminated release container, manufacturing apparatus for blow molding parison for laminated release container, and method for forming hole only in outer layer of laminated injection molded body
CN1520989A (en) * 1997-04-16 2004-08-18 哈斯基注模系统有限公司 Core for use in injection molding plastic articles
CN1968801A (en) * 2004-06-14 2007-05-23 赫斯基注射器成型系统有限公司 Cooling circuit for cooling neck ring of preforms
CN101394978A (en) * 2006-03-08 2009-03-25 依云矿泉水股份公司 Injecting/blowing device for making a thin wall component and corresponding method

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Publication number Priority date Publication date Assignee Title
CN1200068A (en) * 1996-09-05 1998-11-25 株式会社青木固研究所 Method of molding inner thread on neck portion of preform
CN1520989A (en) * 1997-04-16 2004-08-18 哈斯基注模系统有限公司 Core for use in injection molding plastic articles
JP2001105477A (en) * 1999-10-08 2001-04-17 Taisei Kako Co Ltd Method for manufacturing laminated release container, manufacturing apparatus for blow molding parison for laminated release container, and method for forming hole only in outer layer of laminated injection molded body
CN1968801A (en) * 2004-06-14 2007-05-23 赫斯基注射器成型系统有限公司 Cooling circuit for cooling neck ring of preforms
CN101394978A (en) * 2006-03-08 2009-03-25 依云矿泉水股份公司 Injecting/blowing device for making a thin wall component and corresponding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102990870A (en) * 2013-01-04 2013-03-27 广东星联精密机械有限公司 Bottle perform mold structure provided with bottle opening groove

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