WO2018082124A1 - 空心弹性小球的生产工艺及其离心成型机 - Google Patents

空心弹性小球的生产工艺及其离心成型机 Download PDF

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Publication number
WO2018082124A1
WO2018082124A1 PCT/CN2016/106553 CN2016106553W WO2018082124A1 WO 2018082124 A1 WO2018082124 A1 WO 2018082124A1 CN 2016106553 W CN2016106553 W CN 2016106553W WO 2018082124 A1 WO2018082124 A1 WO 2018082124A1
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hollow elastic
forming
cavity
molding machine
jig
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PCT/CN2016/106553
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English (en)
French (fr)
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张人方
朱露稀
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东莞市聚成福环保材料有限公司
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Publication of WO2018082124A1 publication Critical patent/WO2018082124A1/zh

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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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29L2022/00—Hollow articles
    • B29L2022/002—Globes

Definitions

  • the invention relates to the technical field of production of hollow elastic balls, in particular to a production process of a hollow elastic small ball and a centrifugal forming machine thereof.
  • Hollow elastic balls are generally used for the soles of sports shoes, slippers or children's shoes to enhance the shock absorption effect and increase the wearing comfort.
  • the hollow elastic ball When the hollow elastic ball is made, it is generally injected into the forming fixture by liquid colloid, and then the centrifugal body is used to form a cavity inside the colloid during the curing process.
  • centrifugal molding is generally achieved only by the rotation of the forming jig, and the formed small balls are not uniform in thickness, the elasticity is weak, and the damage is liable to occur, so that the hollow elastic balls cannot be made more.
  • the present invention provides a hollow elastic elastic ball production process and a centrifugal molding machine thereof, which can achieve a smaller size, better elasticity, and lower production cost.
  • a production process of a hollow elastic pellet comprises the following steps:
  • the forming jig is taken out from the centrifugal forming machine, sent to the oven for baking for 5-15 min, and the temperature is maintained at 80-100 ° C;
  • the forming jig is taken out of the oven, and the forming jig is opened to obtain a hollow elastic small ball.
  • the liquid glue is one of polyurethane, polyvinyl chloride, rubber or silica gel.
  • the forming fixture is provided with a plurality of cavities.
  • the cavity is spherical, ellipsoidal or hemispherical.
  • the diameter of the hollow elastic pellet is controlled within 3 cm.
  • the rotational speed of the forming fixture for rotation and revolution is controlled at 50-300 RPM.
  • a hollow elastic pellet centrifugal molding machine comprising a base, a rotating frame, a first driving component, a second driving component, a first rotating shaft, a plurality of forming fixtures and a second rotating shaft, wherein the rotating frame is mounted through the first rotating shaft On the base, and can be driven to rotate around the first rotating shaft by a first driving component disposed on the base, the plurality of forming clamps are respectively mounted on the rotating frame through the second rotating shaft, and can be disposed on the rotating frame
  • the two driving elements drive the rotation
  • each of the forming fixtures comprises two strip-shaped splints that can be opened and closed, and a plurality of cavities for molding the hollow elastic pellets are disposed between the two splints.
  • the rotating frame includes a rectangular frame having two supporting arms arranged in parallel and two clamp mounting plates respectively disposed at two ends of the two supporting arms, the one supporting arm and the first
  • the rotating shaft is rotatably connected, and the other supporting arm is drivingly coupled to the first driving member, and the plurality of forming clamps are detachably mounted between the two clamp mounting plates.
  • the cavity is spherical, ellipsoidal or hemispherical.
  • the clamping faces of the two clamping plates of the respective forming jigs are respectively provided with positioning grooves for clamping and positioning protrusions which are matched with the positioning grooves.
  • the positioning convex blocks are embedded. In the positioning slot.
  • the invention has obvious advantages and beneficial effects. Specifically, by setting a rotating frame, the forming fixture is revolved with the rotating frame, and at the same time, the forming fixture is rotated on the rotating frame, so that the colloid in the forming fixture is The thickness is more uniform during the centrifugal forming process, and the concentricity of the cavity and the core of the colloid is higher, and the damage is less likely to occur.
  • the elastic small ball can be made smaller, and the elasticity of the hollow elastic ball is higher, and the elasticity is improved.
  • the production quality of the hollow elastic pellets reduces the production cost of the enterprise; the invention also provides a centrifugal molding machine for hollow elastic pellets, wherein the rotating frame of the centrifugal molding machine can simultaneously place a plurality of molding fixtures, and each molding fixture can be Simultaneously forming a plurality of small balls greatly improves production efficiency and reduces production cost; in addition, since the hollow elastic small balls produced by the present invention have better elasticity, when the soles of sports shoes, slippers or children's shoes are to be used, Improve wearing comfort and increase user satisfaction.
  • FIG. 1 is a perspective view showing an assembly structure of a centrifugal molding machine according to an embodiment of the present invention
  • Figure 2 is a front elevational view showing the assembly structure of a centrifugal molding machine according to an embodiment of the present invention
  • Figure 3 is a structural view showing the assembly of a molding jig according to an embodiment of the present invention.
  • Figure 4 is an exploded perspective view of a molding jig of an embodiment of the present invention.
  • Second rotating shaft 14 Second driving element 20, rotating frame
  • a hollow elastic pellet centrifugal molding machine includes a base 10, a rotating frame 20, a first driving component 12, a second driving component 14, a first rotating shaft 11, and a plurality of forming fixtures. And the second rotating shaft 13 , the rotating frame 20 is mounted on the base 10 via the first rotating shaft 11 , and can be driven to rotate around the first rotating shaft 11 by the first driving component 12 disposed on the base 10 , the plurality of The molding jigs 30 are respectively mounted on the rotating frame 20 through the second rotating shaft 13, and can be driven to rotate by the second driving elements 14 provided on the rotating frame 20, and each of the forming jigs 30 includes two strips that can be opened and closed.
  • the rotating frame 20 includes a rectangular frame having two supporting arms 21 disposed in parallel and two clamp mounting plates 22 respectively disposed at two ends of the two supporting arms 21, the one supporting arm 21 and the first rotating shaft 11 is rotatably connected, the other support arm 21 is drivingly coupled to the first drive member 12, and the plurality of molding jigs 30 are detachably mounted between the two clamp mounting plates 22.
  • the cavity 32 may be spherical, ellipsoidal or hemispherical, and the cavity 32 has a diameter of less than 3 cm.
  • a production process of a hollow elastic pellet comprises the following steps:
  • the liquid glue is in polyurethane, polyvinyl chloride, rubber or silica gel One type;
  • the cavity may be spherical, ellipsoidal or hemispherical;
  • the molding jig into which the liquid glue is injected is mounted on the rotating frame of the centrifugal molding machine, and the forming jig is rotated around its own axis and revolved with the rotating frame, and the rotation speed of the forming jig for rotation and revolution is controlled at 50-300 RPM. And keep it for 3-8min;
  • the forming jig is taken out from the centrifugal forming machine, sent to the oven for baking for 5-15 min, and the temperature is maintained at 80-100 ° C;
  • the molding jig 30 is taken out from the oven, and the molding jig 30 is opened to obtain a hollow elastic pellet having a diameter of less than 3 cm.
  • the molding jig is provided with a plurality of cavities, and liquid glue is simultaneously injected into each cavity during the production process, and then the molding jig is mounted on the centrifugal molding machine, so that a plurality of hollow elastic balls can be formed at one time.
  • the centrifugal molding machine of the present invention can also place a plurality of molding jigs at a time, thereby enabling mass production of hollow elastic pellets and improving production efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

一种空心弹性小球的生产工艺及空心弹性小球的离心成型机，该生产工艺包括以下步骤：(1)在成型夹具（30）的型腔（32）内喷脱模剂；(2)通过注液设备在成型夹具（30）的型腔（32）内注入一定量的液态胶，并使液态胶的体积小于型腔（32）的体积；(3)将注入液态胶的成型夹具（30）装于离心成型机的旋转架（20）上，并使成型夹具（30）绕自身轴向自转以及随旋转架（20）公转，保持3-8min；(4)将成型夹具（30）自离心成型机上取出，送入烤箱烘烤5-15min，保持温度在80-100℃；(5)将成型夹具（30）自烤箱取出，打开成型夹具（30）得到空心弹性小球。由于成型夹具（30）可随旋转架（20）公转，也可自转，使得成型夹具（30）内的胶体在离心成型过程中厚度更均匀，空腔与胶体的球心的同心度更高，空心小球可以做到更小、弹性更好。

Description

空心弹性小球的生产工艺及其离心成型机 技术领域
本发明涉及空心弹性球的生产技术领域，具体涉及一种空心弹性小球的生产工艺及其离心成型机。
背景技术
空心弹性球一般用于运动鞋、拖鞋或儿童鞋的鞋底，以提高其减震效果，增加穿着的舒适性。空心弹性球制作时，一般是采用液态胶体注塑到成型夹具中，然后采用离心成型的方式使胶体在固化的过程中在内部形成空腔。目前在空心弹性球的生产过程中一般只是通过成型夹具的自转来实现离心成型，成型出来的小球厚度不均匀，弹性较弱，而且容易出现破损的情况，导致不能将空心弹性球做到更小的尺寸，而小尺寸的弹性球只能做成实心的，不仅增加了材料成本，而且实心球的弹性也不能满足减震要求。
发明内容
本发明针对现有技术存在之缺失，提供一种空心弹性小球的生产工艺及其离心成型机，其可将空心弹性小球做到更小的尺寸，弹性更好，而且生产成本更低。
为实现上述目的，本发明采用如下之技术方案：
一种空心弹性小球的生产工艺，包括以下步骤：
(1)在成型夹具的型腔内喷脱模剂；
(2)通过注液设备在成型夹具的型腔内注入一定量的液态胶，并使液态胶的体积小于型腔的体积；
(3)将注入液态胶的成型夹具装于离心成型机的旋转架上，并使成型夹具绕自身轴向自转以及随旋转架公转，保持3-8min；
(4)将成型夹具自离心成型机上取出，送入烤箱烘烤5-15min，保持温度在80-100℃；
(5)将成型夹具自烤箱取出，打开成型夹具得到空心弹性小球。
作为一种优选方案，所述液态胶为聚氨脂、聚氯乙烯、橡胶或硅胶中的一种。
作为一种优选方案，所述成型夹具设有多个型腔。
作为一种优选方案，所述型腔为球形、椭球形或半球形。
作为一种优选方案，所述空心弹性小球的直径控制在3cm以内。
作为一种优选方案，所述成型夹具自转和公转的转速控制在50-300RPM。
一种空心弹性小球的离心成型机，包括机座、旋转架、第一驱动元件、第二驱动元件、第一转轴、多个成型夹具和第二转轴，所述旋转架通过第一转轴安装于机座上，并可由设于机座上的第一驱动元件驱动绕第一转轴转动，所述多个成型夹具分别通过第二转轴安装于旋转架上，并可由设于旋转架上的第二驱动元件驱动转动，所述各个成型夹具均包括可开合的两块长条型夹板，所述两块夹板之间设有多个用于成型空心弹性小球的型腔。
作为一种优选方案，所述旋转架包括一矩形框架，所述矩形框架具有两个平行设置的支撑臂以及分别设于两支撑臂两端的两个夹具安装板，所述一支撑臂与第一转轴可转动连接，另一支撑臂与第一驱动元件驱动连接，所述多个成型夹具可拆式安装于两块夹具安装板之间。
作为一种优选方案，所述型腔为球形、椭球形或半球形。
作为一种优选方案，所述各个成型夹具的两块夹板的合模面上分别设有便于合模的定位槽和与定位槽适配的定位凸块，合模时，所述定位凸块嵌于定位槽内。
本发明与现有技术相比具有明显的优点和有益效果，具体而言，通过设置旋转架，使成型夹具随旋转架公转，同时使成型夹具在旋转架上自转，使得成型夹具内的胶体在离心成型过程中厚度更均匀，空腔与胶体的球心的同心度更高，不易出现破损的情况，可以将弹性小球做到更小的尺寸，使空心弹性小球的弹性更高，提高了空心弹性小球的生产质量，降低了企业的生产成本；本发明还提供一种空心弹性小球的离心成型机，该离心成型机的旋转架可以同时放置多个成型夹具，各个成型夹具可同时成型多个小球，极大的提高了生产效率，降低了生产成本；另外，由于本发明生产的空心弹性小球弹性更好，当将于运动鞋、拖鞋或儿童鞋的鞋底时，可提高穿着舒适性，提升用户满意度。
为更清楚地阐述本发明的结构特征、技术手段及其所达到的具体目的和功能，下面结合附图与具体实施例来对本发明作进一步详细说明：
附图说明
图1是本发明之实施例的离心成型机组装结构立体图；
图2是本发明之实施例的离心成型机组装结构正视图；
图3是本发明之实施例的成型夹具组装结构图；
图4是本发明之实施例的成型夹具结构分解图。
附图标识说明：
10、机座              11、第一转轴          12、第一驱动元件
13、第二转轴          14、第二驱动元件      20、旋转架
21、支撑臂          22、夹具安装板    30、成型夹具
31、夹板            32、型腔          33、定位槽
34、定位凸块
具体实施方式
请参照图1-4所示，一种空心弹性小球的离心成型机，包括机座10、旋转架20、第一驱动元件12、第二驱动元件14、第一转轴11、多个成型夹具30和第二转轴13，所述旋转架20通过第一转轴11安装于机座10上，并可由设于机座10上的第一驱动元件12驱动绕第一转轴11转动，所述多个成型夹具30分别通过第二转轴13安装于旋转架20上，并可由设于旋转架20上的第二驱动元件14驱动转动，所述各个成型夹具30均包括可开合的两块长条型夹板31，所述两块夹板31之间设有三个以上用于成型空心弹性小球的型腔32，所述两块夹板31的合模面上分别设有便于合模的定位槽33和与定位槽33适配的定位凸块34，合模时，所述定位凸块34嵌于定位槽33内。所述旋转架20包括一矩形框架，所述矩形框架具有两个平行设置的支撑臂21以及分别设于两支撑臂21两端的两个夹具安装板22，所述一支撑臂21与第一转轴11可转动连接，所述另一支撑臂21与第一驱动元件12驱动连接，所述多个成型夹具30可拆式安装于两块夹具安装板22之间。本发明中，所述型腔32可以为球形、椭球形或半球形，所述型腔32的直径小于3cm。
一种空心弹性小球的生产工艺，包括以下步骤：
(1)在成型夹具上喷脱模剂；
(2)通过注液设备在成型夹具的型腔内注入一定量的液态胶，并使液态胶的体积小于型腔的体积；所述液态胶为聚氨脂、聚氯乙烯、橡胶或硅胶中的一种；所述型腔可以为球形、椭球形或半球形；
(3)将注入液态胶的成型夹具装于离心成型机的旋转架上，并使成型夹具绕自身轴向自转以及随旋转架公转，所述成型夹具自转及公转的转速控制在50-300RPM，并保持3-8min；
(4)将成型夹具自离心成型机上取出，送入烤箱烘烤5-15min，保持温度在80-100℃；
(5)将成型夹具30自烤箱取出，打开成型夹具30得到空心弹性小球，所述空心弹性小球的直径小于3cm。
本发明中，所述成型夹具设有多个型腔，在生产过程中同时将液态胶注入到各个型腔内，然后将成型夹具装在离心成型机上，从而可以一次成型多个空心弹性小球；而且，本发明的离心成型机也可以一次放置多个成型夹具，从而可以实现对空心弹性小球的批量生产，提高生产效率。
以上所述，仅是本发明的较佳实施例而已，并不用以限制本发明，故凡是依据本发明的技术实际对以上实施例所作的任何修改、等同替换、改进等，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种空心弹性小球的生产工艺，其特征在于：包括以下步骤：
    (1)在成型夹具的型腔内喷脱模剂；
    (2)通过注液设备在成型夹具的型腔内注入一定量的液态胶，并使液态胶的体积小于型腔的体积；
    (3)将注入液态胶的成型夹具装于离心成型机的旋转架上，并使成型夹具绕自身轴向自转以及随旋转架公转，保持3-8min；
    (4)将成型夹具自离心成型机上取出，送入烤箱烘烤5-15min，保持温度在80-100℃；
    (5)将成型夹具自烤箱取出，打开成型夹具得到空心弹性小球。
  2. 根据权利要求1所述的空心弹性小球的生产工艺，其特征在于：所述液态胶为聚氨脂、聚氯乙烯、橡胶或硅胶中的一种。
  3. 根据权利要求1所述的空心弹性小球的生产工艺，其特征在于：所述成型夹具设有多个型腔。
  4. 根据权利要求3所述的空心弹性小球的生产工艺，其特征在于：所述型腔为球形、椭球形或半球形。
  5. 根据权利要求1所述的空心弹性小球的生产工艺，其特征在于：所述空心弹性小球的直径控制在3cm以内。
  6. 根据权利要求1所述的空心弹性小球的生产工艺，其特征在于：所述成型夹具自转和公转的转速控制在50-300RPM。
  7. 一种空心弹性小球的离心成型机，其特征在于：包括机座、旋转架、第一驱动元件、第二驱动元件、第一转轴、多个成型夹具和第二转轴，所述旋转架通过第一转轴安装于机座上，并可由设于机座上的第一驱动元件 驱动绕第一转轴转动，所述多个成型夹具分别通过第二转轴安装于旋转架上，并可由设于旋转架上的第二驱动元件驱动转动，所述各个成型夹具均包括可开合的两块长条型夹板，所述两块夹板之间设有多个用于成型空心弹性小球的型腔。
  8. 根据权利要求7所述的空心弹性小球的离心成型机，其特征在于：所述旋转架包括一矩形框架，所述矩形框架具有两个平行设置的支撑臂以及分别设于两支撑臂两端的两个夹具安装板，所述一支撑臂与第一转轴可转动连接，另一支撑臂与第一驱动元件驱动连接，所述多个成型夹具可拆式安装于两块夹具安装板之间。
  9. 根据权利要求7所述的空心弹性小球的离心成型机，其特征在于：所述型腔为球形、椭球形或半球形。
  10. 根据权利要求7所述的空心弹性小球的离心成型机，其特征在于：所述各个成型夹具的两块夹板的合模面上分别设有便于合模的定位槽和与定位槽适配的定位凸块，合模时，所述定位凸块嵌于定位槽内。
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