WO2009089685A1 - Matrice de moulage par soufflage conçue pour produire des mannequins - Google Patents

Matrice de moulage par soufflage conçue pour produire des mannequins Download PDF

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Publication number
WO2009089685A1
WO2009089685A1 PCT/CN2008/002038 CN2008002038W WO2009089685A1 WO 2009089685 A1 WO2009089685 A1 WO 2009089685A1 CN 2008002038 W CN2008002038 W CN 2008002038W WO 2009089685 A1 WO2009089685 A1 WO 2009089685A1
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WO
WIPO (PCT)
Prior art keywords
insert
cavity
boss
blow molding
blow
Prior art date
Application number
PCT/CN2008/002038
Other languages
English (en)
French (fr)
Inventor
Jinghui Liu
Original Assignee
Jinghui Liu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jinghui Liu filed Critical Jinghui Liu
Priority to EP08870606A priority Critical patent/EP2241429A4/en
Publication of WO2009089685A1 publication Critical patent/WO2009089685A1/zh
Priority to US12/817,231 priority patent/US8186993B2/en

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Classifications

    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/62—Venting means
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/54—Moulds for undercut articles
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4882—Mould cavity geometry
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C2049/4879—Moulds characterised by mould configurations
    • B29C2049/4882—Mould cavity geometry
    • B29C2049/48825—Asymmetric moulds, i.e. the parison is not in the center of the mould
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/54—Moulds for undercut articles
    • B29C2049/542—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles
    • B29C2049/546—Moulds for undercut articles having means to facilitate the removal of the blow moulded articles by translatorilly actuating an auxiliary mould part while the mould is still in a closed position
    • 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
    • B29L2031/702—Imitation articles, e.g. statues, mannequins

Definitions

  • the invention relates to a blow mould, in particular to a blow mould for garment props.
  • Plastic blow molding is a method of molding hollow products, and blow molding products are increasingly used in daily production and life.
  • the blow molding process consists of two basic steps: first forming the blank, then compressing the parison with compressed air to make it conform to the mold cavity, giving the shape and size of the cavity to the article.
  • Blow molding can mold large and hollow products that cannot be produced by other methods with high productivity.
  • hollow products molded by the blow molding process due to the limitations of the process, the corners, corners, grooves and reinforcing ribs of the product should be as large a circular arc or spherical transition as possible, because the parison is in the role of compressed air.
  • the force in all directions of the mold cavity is equal.
  • the blank 12 When there is a corner on the mold, as shown in Fig. 1, the blank 12 first contacts the adjacent two faces of the cavity, and the phase of the blank 12 and the cavity The residual air between the adjacent two faces is extruded into an air bag to form a dead angle 11 that the blank cannot reach. Since the blank 12 cannot reach the corner, a large arc is formed between adjacent two faces on the product. Or spherical transition, in the case of increasing the air pressure, it may also occur that the position of the glue is too thin, the strength does not meet the requirements of use, and even the blow can not be formed.
  • a connecting device for example, the Chinese patent CN200980508Y, a connecting device for a fashion model prop
  • a connecting device for example, the Chinese patent CN200980508Y, a connecting device for a fashion model prop
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a garment that can form a corner on a component of a garment prop, realize smooth connection of the components, and directly form a cavity for attaching the connecting device on the connecting surface. Special blow molding mold for props.
  • the technical proposal of the blow molding mold for the garment prop of the present invention is: a blow molding mold for a garment prop, comprising a cavity having a molding surface, wherein: the cavity is inlaid with an insert, and the front end of the insert is provided Forming a molding surface of a molding surface of the cavity, the molding surface of the insert has a corner between the molding surface adjacent to the surface of the cavity, and a gap is provided at the intersection between the cavity and the insert; the insert
  • the forming surface is further provided with a boss facing the inside of the cavity, and the insert or the boss is connected with a reciprocating driving device that drives the blow molding to move to the position in the direction of the cavity and is reset after the blow molding is completed, and the convex
  • the height of the table is less than or equal to the movement of the boss from the boss directly from the boss, or to the insert, or to the insert.
  • the reciprocating drive is a cylinder or hydraulic cylinder, or other means for reciprocating movement of the insert or boss, the cylinder or hydraulic
  • the gap between the cavity and the insert is 5 to 25 N2008/002038 Silk rice.
  • the gap between the insert and the boss is preferably 5 to 25 m.
  • the blow mold having the reciprocating movable insert or the boss provided by the present invention breaks the production bottleneck of the blow molding industry compared with the existing blow mold, and the blow molding process cannot produce the right angle edge to meet
  • the overall look is good, and it can better support the clothing, and will not make the displayed
  • the garment has an abnormal depression.
  • blow molding mold for the garment prop of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
  • FIG. 1 is a schematic view showing a defect of a production process of a conventional blow mold
  • FIG. 2 is a schematic view of a garment model prop component produced by a conventional blow mold
  • FIG. 3 is a schematic diagram of a blow mold structure for producing a torso portion of a garment model prop
  • FIG. 4 is a view of G in FIG. Magnified view
  • Figure 5 is a perspective view of the A insert of Figure 3;
  • Figure 6 is a perspective view of the B insert of Figure 3;
  • Figure 7 is a perspective view of the C insert of Figure 3;
  • Figure 8 is a schematic view showing the structure of a blow molding die for producing an arm portion of a garment model
  • Figure 9 is a perspective view of the D insert of Figure 8;
  • Figure 10 is a perspective view of the E insert of Figure 8.
  • Figure 11 is a schematic view showing the structure of a blown plastic mold for producing a lower part of a garment model prop
  • Fig. 12 is a perspective view of the F insert of Fig. 11;
  • Figure 13 is a schematic view showing the assembly of the garment props produced by the blow mold of the present invention
  • Figure 14 is a perspective view of the trunk portion of the garment prop produced by the blow mold of the present invention
  • Figure 15 is a perspective view of the connecting member of the garment prop member connecting device of Figure 13
  • Figure 16 is a perspective view of the connecting member mated with Figure 15.
  • the blow mold for molding the torso portion of the garment item in the present embodiment includes a cavity 1 for forming a torso portion, and the insert portion A is inlaid at a position on the cavity 1 where the joint surface is to be formed. , B, C and 2.
  • the insert 2 as an example, the partial surface 23 of the front end of the insert 2 constitutes a part of the molding surface of the cavity, and the molding surface 23 on the insert 2 and the adjacent molding surface of the cavity 1 have a corner of about 90 degrees.
  • a gap 3 is provided between the chamber 1 and the insert 2 as a venting groove.
  • the width of the venting groove is about 5 to 25 meters, which is mainly adjusted according to the size of the product and the pressure.
  • the width of the venting groove can be set to 15 meters.
  • the billet 12 discharges the gas in the "dead corner 11" region through the gap 3 of the venting groove under the action of the air pressure, so that the billet 12 fits as close as possible to the wall of the cavity 1 and the insert 2, and
  • the molded product may produce a small amount of burrs at the venting groove, which can be removed by subsequent processes to produce a blow molded product having a non-circular transition corner.
  • a boss 21c is provided on the molding surface of the front end of the insert C, and convex
  • the height of the table 21c is about 23 mm, and at the same time, in order to avoid the error in the size of the blow molded product and to facilitate the assembly of the connecting member 7, a step 22 having a height of about 2 to 3 mm is provided at the root of the boss 21c.
  • the boss 21c can be formed directly on the insert C, or separately formed by welding or tight fitting, threading or the like with the insert C, and then the rear end of the insert C and the piston shaft of the cylinder or the hydraulic cylinder 4.
  • the insert C reciprocates under the action of the piston shaft 41, and therefore, at the intersection of the insert C and the cavity 1 A gap 3 is also formed therebetween, and the gap 3 is maintained at 5 to 25 m, usually 15 m, for use as an exhaust gas.
  • the insert C is advanced into position such that the forming surface of the front end of the insert C is aligned with the adjacent forming surface in the cavity 1; when the blow molding is completed, the insert C is retracted by the piston shaft 41
  • the displacement distance should be greater than (at least equal to) the height of the boss 21c on the insert C.
  • a recess 17 and a connecting surface 16 for mounting the connecting means 6, 7 as shown in Fig. 15 or Fig. 16 are formed at the insert C, while ensuring the product joining surface 16 Flatness.
  • the structure of the connecting devices 6, 7 is described in detail in CN200980508Y and therefore will not be described in detail herein.
  • Figures 11 and 12 are illustrations of the blow mold for forming the lower limb 15 and its side.
  • the insert F is used to form the joint surface of the side of the lower limb 15. It is particularly important to note that this blow molding tool is
  • the connection surface of the left and right lower limbs of type 08 002038 is at the opposite side of the middle part of the lower limb (ie, the boundary line between the buttocks), which is different from the connection of the left and right lower limbs of the prior art at the thigh of one of the lower limbs.
  • the bonding line of adjacent components is moved to the concealed area, which not only makes the appearance of the tights or socks or underwear more beautiful, but also avoids the abnormal depression of the displayed clothing.
  • due to this division of the left and right lower limbs it is also convenient to wear and unload trousers; at the same time, because the left and right lower limbs pass through the figure
  • the specific mold structure is as follows: the surface of the lower limb 15 is first machined in the cavity 1 of the mold, and the joint surface of the lower limb is processed on the insert F, and the insert F has a boss 21f, and the insert is F is embedded in the cavity 1 to form a complete lower limb molding cavity, and the rear end of the insert F is connected to a cylinder piston shaft (not shown). And a certain exhaust gap is reserved at the joint of the insert F and the cavity, and the parison is formed along the cavity under the action of the compressed air. Due to the exhaust gap, the parison can be filled according to the law of fluid motion. The surface where the cavity 1 meets the insert F, thereby forming a right-angled or approximately right-angled thigh component.
  • the insert is fixed on the cavity 1, and the boss at the front end of the insert is movably connected with the insert, and a certain gap is maintained to ensure exhaust and relative movement, convex
  • the other end of the table is directly or indirectly connected to the piston shaft of the cylinder or hydraulic cylinder to achieve reciprocating motion.
  • the boss is moved forward into position; when the blow molding is completed, the boss is retracted under the action of the piston shaft, and the displacement distance should be greater than (at least equal to) the height of the boss.
  • a cavity is formed at the boss for receiving the connecting means 6, 7.
  • the garment props processed by the mold can form a corner on the parts of the garment prop, realize the perfect connection between the garment props torso, the lower limbs, the left and right arms and the head, and can form a concave cavity directly on the connecting surface.
  • the structural integrity and use requirements of the garment model further improve the blow molding process of the garment props, and the production capacity is high and the cost is low.

Description

2008/002038
一种服装道具专用吹塑模具 技术领域
本发明涉及一种吹塑模具， 特别是服装道具专用吹塑模具。
技术背景
塑料的吹塑是一种成型中空制品的方法， 吹塑制品在日常生产和生 活中的应用越来越广泛。 吹塑工艺由两个基本步骤构成： 先成型坯， 后用 压缩空气来吹胀型坯，使之贴紧模具模腔，把模腔的形状与尺寸赋予制品。 吹塑能以较高的生产效率成型其他方法无法生产的大型和中空制品。然而， 通过吹塑工艺成型的中空产品， 由于工艺的局限性， 产品的拐角、 棱角、 凹槽与加强肋要尽可能成较大的圆弧或球面过渡， 因为型坯在压縮空气的 作用下， 对模具模腔各个方向的力是均等的， 当模具上存在拐角时， 如附 图 1所示， 坯料 12首先接触到模腔的相邻的两个面， 坯料 12与模腔的相 邻两个面之间的残留空气被挤压成气包， 形成坯料无法到达的死角 11， 由 于坯料 12无法到达拐角处，因此在制品上的相邻两个面之间形成较大的圆 弧或球面过渡， 在增大气压的情况下， 还可能会出现这些位置胶位过薄， 强度达不到使用要求， 甚至吹破不能成型。这样， 当产品需要多个部件组 装而成时， 例如服装模特道具， 由吹塑制得的道具部件组装后， 相邻衔接 处出现凹陷 13 (如附图 2所示）， 衔接处不顺滑， 穿上衣服后不好看， 特 别是用于展示内衣或紧身服装时， 这种缺陷更为明显， 从而影响整体的展 示效果。 由于吹塑的服装道具具有以上的缺陷， 目前大量的服装道具还是 P T/CN2008/002038 采用传统的树脂加玻璃纤维的手工制作方式。
另外， 组成服装模特的道具部件组装时， 需要借助连接装置来装配成 一体（如中国专利 CN200980508Y—种服装模特道具的连接装置），为了固 定连接装置， 通常需要在制得的道具部件相对连接面上加工一个孔、 或者 铣出一个凹腔， 用来安放连接装置， 否则相互连接的道具部件之间就会有 缝隙。 由于这些孔或凹腔不能与道具部件同时成型， 需要通过后续的工序 二次加工， 因此生产效率降低， 也增加了制造成本。
发明内容
本发明要解决的技术问题是克服现有技术的不足，提供一种可在服装 道具的部件上形成拐角、实现各部件顺滑连接、并可在连接面上直接形成 安放连接装置凹腔的服装道具专用吹塑模具。
本发明服装道具专用吹塑模具的技术方案是:一种服装道具专用吹塑 模具， 包括具有成型面的模腔， 其特征在于： 所述模腔上镶嵌有镶件， 该 镶件前端设有构成模腔一部分成型面的成型表面，镶件的成型表面与模腔 上与该表面相邻的成型面之间具有拐角，模腔与镶件之间的交接处设有间 隙；所述镶件的成型表面上还设有朝向模腔内部的凸台，所述镶件或凸台 与驱动其吹塑前向模腔方向移动到位、吹塑完成后复位的往复驱动装置相 连接，并且该凸台的高度小于或等于凸台在往复驱动装置作用下移动的距 所述凸台直接做出在镶件上，或与镶件固定连接，或与镶件活动连接。 所述往复驱动装置为气缸或液压缸，或其它能实现镶件或凸台往复运 动的装置， 气缸或液压缸装设在模具上， 它们的轴与镶件或凸台相连接。
为获得较好的成型效果， 所述模腔与镶件之间间隙的宽度为 5〜25 N2008/002038 丝米。在上述方案中，如果凸台与气缸轴连接往复移动， '那么镶件与凸台 之间必然也会有适当的间隙， 该间隙同样以 5〜25丝米为佳。
根据以上技术方案，本发明提供的具有往复活动镶件或凸台的吹塑模 具与现有的吹塑模具相比，突破了吹塑行业的生产瓶颈，以及吹塑工艺不 能生产直角边相接产品的技术偏见， 生产制造出非圆弧过渡的吹塑产品， 并通过控制吹塑周期成功实现多个吹塑产品装配公差配合。产品的相邻面 之间不需要采用大的圆弧过渡，各部件之间的衔接顺畅，当用于生产服装 模特道具时，整体观感好， 能更好地支撑服装， 不会使所展示的服装出现 不正常的凹陷。在实现机械化生产的同时，杜绝了传统工艺生产的产品易 破损、 易碎裂的根本问题， 既改善产品质量， 又提高了产品的使用寿命。 相对与传统的工艺，降低工业污染对人体的伤害，工人作业环境得到明显 改善， 同时原材料可以回收利用， 降低了生产成本。利用以上的技术， 还 可以直接在道具部件的相对连接面上形成凹腔，便于安放连接装置，不需 要二次加工， 进一步提高了产能。
附图说明
下面结合附图及具体实施方式对本发明服装道具专用吹塑模具作进 一步说明。
附图 1为现有吹塑模具的生产工艺缺陷示意图；
附图 2为现有吹塑模具所生产的服装模特道具部件连接后的示意图； 附图 3为生产服装模特道具躯干部分的吹塑胶模具结构简图； . 附图 4为图 3中 G处的放大图；
附图 5为图 3中 A镶件的立体图；
附图 6为图 3中 B镶件的立体图； 08 002038 附图 7为图 3中 C镶件的立体图；
附图 8为生产服装模特道具手臂部分的吹塑胶模具结构简图； 附图 9为图 8中 D镶件的立体图；
附图 10为图 8中 E镶件的立体图；
附图 11为生产服装模特道具下肢部分的吹塑胶模具结构简图； 附图 12为图 11中 F镶件的立体图；
附图 13为由本发明吹塑模具生产的服装道具部件组装示意图； 附图 14为由本发明吹塑模具生产的服装道具躯干部分立体图； 附图 15为图 13中服装道具部件连接装置的连接部件立体图； 附图 16为与图 15相配合的连接部件立体图。
具体实施方式
如附图 3、 4所示， 本实施例中用于成型服装道具躯干部分的吹塑模 具包括用于成型躯干部分的模腔 1，模腔 1上需要成型连接面的位置镶嵌 有镶件 A、 B、 C和 2。 以镶件 2为例， 镶件 2前端的部分表面 23构成模 腔的一部分成型面， 镶件 2上的成型表面 23与模腔 1的相邻成型面之间 呈约 90度的拐角， 模腔 1与镶件 2之间的交接处设有一定的间隙 3作为 排气槽。排气槽的宽度大约 5〜25丝米，主要根据产品的大小以及气压等 因素来调整。如生产服装模特道具部件，通常该排气槽的宽度可以设置为 15丝米。在图 4中， 坯料 12在气压的作用下， 将 "死角 11 "区域的气体 通过排气槽的间隙 3排出， 使得坯料 12尽可能地贴合模腔 1的壁和镶件 2， 同时， 成型后的产品在排气槽处可能产生小许的毛边， 则可通过后续 工序去除掉， 从而生产出具有非圆弧过渡拐角的吹塑产品。
当需要在连接面上安放连接装置 6、 7时， 为了避免二次加工，本发 明在吹塑的同时一次性成型一个较深的凹腔来达到上述目的。 如附图 3、 图 5至 7所示，服装道具躯干部分的颈部、两侧肩部分别需要与头部以及 左、右手臂连接。 因此，在镶件 A、 B、 C的成型表面上分别设有凸台 21a、 21b、 21c。 以镶件 C为例， 为了在躯千部分的肩部与手臂连接处一次性成 型一个如附图 14所示的凹腔 17， 在镶件 C前端的成型表面上设有凸台 21c, 凸台 21c的高度约 23mm，同时为了避免吹塑产品尺寸的误差以及方 便装配连接部件 7， 同时在凸台的 21c的根部设置了一个高度约 2〜3mm 的台阶 22。 该凸台 21c可以直接做出在镶件 C上， 或者单独做出通过焊 接或紧配合、螺纹等与镶件 C连接成一体，然后镶件 C的后端与气缸或液 压缸 4的活塞轴 41相连接， 气缸或液压缸 4的缸体固定安装在模具 5上 或其它部件上， 镶件 C在活塞轴 41的作用下往复运动， 因此， 在镶件 C 及模腔 1的交接处之间也形成有间隙 3， 该间隙 3保持在 5〜25丝米， 通 常为 15丝米， 作为排气用。 在吹塑前， 镶件 C前移到位， 使得镶件 C前 端的成型表面与模腔 1内的相邻成型面相互对齐； 当吹塑完成后， 镶件 C 在活塞轴 41的作用下后退， 其位移距离应当大于 （至少是等于）镶件 C 上凸台 21c的高度。这样当吹塑制品制成后，在镶件 C处形成了一个用于 安放如附图 15或附图 16所示连接装置 6、 7的凹腔 17以及连接面 16， 同时保证产品连接面 16的平整性。连接装置 6、7的结构在 CN200980508Y 中有详细的说明， 因此在此不作详细描述。
附图 8至 10为成型手臂 14的吹塑模具及其镶件图，同样在其镶件 D、 E前端的成型表面上分别设有凸台 21d、 21e, 用于成型一个对应的凹腔。
附图 11、 12为成型下肢 15的吹塑模具及其侧面的镶件图。其中镶件 F用于成型下肢 15侧面的连接面。 特别需要注意的是， 本吹塑模具所成 08 002038 型的左、 右下肢的连接面处于下肢中部的相对侧面 （即臀部分界线处）， 不同于以往技术的左、右下肢的连接面处于其中一侧下肢的大腿处，这种 设计将相邻部件的结合线移到隐蔽处，不仅使得在展示紧身裤或袜子或内 裤时更美观，避免所展示的服装出现不正常的凹陷。另外由于左、右下肢 的这种分割方式， 也方便穿、 卸长裤； 同时由于左、 右下肢通过如附图
15、 16所示的连接装置 6、 7连接后， 可以相对旋转一定角度， 从而也方 便调节服装道具的展示姿态。具体的模具结构如下：在模具的模腔 1中先 加工出下肢 15的表面， 它与另一侧下肢的连接面加工在镶件 F上， 镶件 F上具有一个凸台 21f， 将镶件 F镶嵌在模腔 1内， 组成完整的下肢成型 模腔， 镶件 F的后端与气缸活塞轴（图中未示出）相连接。 并且在镶件 F 与模腔的接合处预留一定的排气间隙，在压缩空气的作用下，型坯顺着模 腔成型， 由于设有排气间隙， 根据流体运动规律， 型坯可以充满模腔 1 与镶件 F交接处的表面， 从而成型衔接处为直角或近似直角的大腿部件。
在本发明中， 也可以采用以下的方案：镶件固定在模腔 1上，镶件前 端的凸台与镶件之间活动连接，并保持一定的间隙， 以保证排气及相对运 动，凸台的另一端直接或间接与气缸或液压缸的活塞轴连接，实现往复运 动。在吹塑前， 凸台前移到位； 当吹塑完成后， 凸台在活塞轴的作用下后 退， 其位移距离应当大于（至少是等于）凸台的高度。这样当吹塑制品制 成后， 在凸台处形成了一个凹腔， 用于安放连接装置 6、 7。
这种模具加工出来的服装道具部件， 可在服装道具的部件上形成拐 角、实现服装道具躯干、下肢、左右手臂及头部之间的完美衔接， 并可在 连接面上直接形成凹腔，达到服装模特在结构上的完整性及使用要求，进 一步完善了服装道具的吹塑工艺， 而且产能高、 成本低。

Claims

权 利 要 求 书
1. 一种服装道具专用吹塑模具， 包括具有成型面的模腔， 其特征在 于：所述模腔上镶嵌有镶件，该镶件前端设有构成模腔一部分成型面的成 型表面， 镶件的成型表面与模腔上与该表面相邻的成型面之间具有拐角， 模腔与镶件之间的交接处设有间隙；所述镶件的成型表面上还设有朝向模 腔内部的凸台，所述镶件或凸台与驱动其吹塑前向模腔方向移动到位、吹 塑完成后复位的往复驱动装置相连接，并且该凸台的高度小于或等于凸台 在往复驱动装置作用下移动的距离。
2.根据权利要求 1所述的服装道具专用吹塑模具，其特征在于： 所述 凸台直接做出在镶件上或与镶件固定连接或与镶件活动连接。
3. 根据权利要求 1所述的服装道具专用吹塑模具， 其特征在于： 所 述往复驱动装置为气缸或液压缸，气缸或液压缸的缸体装设在模具上，它 们的轴与镶件或凸台相连接。
4. 根据权利要求 1至 3任一项所述的服装道具专用吹塑模具， 其特 征在于： 所述间隙的宽度为 5〜25丝米。
5. 根据权利要求 1至 3任一项所述的服装道具专用吹塑模具， 其特 征在于： 所述凸台的高度为 4〜30毫米。
PCT/CN2008/002038 2007-12-18 2008-12-22 Matrice de moulage par soufflage conçue pour produire des mannequins WO2009089685A1 (fr)

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