• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an air injection tip of an injection mold, the air discharge hole is formed through the tip, the upper body is formed with a bolt portion at the bottom, and the nut portion that can be separable from the bolt portion of the upper body is formed Characterized in that consisting of a lower body. Therefore, according to the present invention, it is possible to remove the tip and at the same time reduce the number of micropores, thereby facilitating maintenance and repair, as well as further improve the maintainability and reduce the processing cost.
    公开号:KR19990043534A
    申请号:KR1019970064547
    申请日:1997-11-29
    公开日:1999-06-15
    发明作者:박종권；안자이쯔네지
    申请人:윤종용；삼성전자 주식회사；
    IPC主号:
    专利说明:

    Tips for Air Injection in Injection Mold
    The present invention relates to an air injection tip of an injection mold, and more particularly, by separating the upper and lower portions of the tip, the air of the injection mold can be easily maintained and repaired without having to disassemble the mold. It relates to an injection tip.
    In general, various types of injection molding methods and injection molding dies, which are used for injection molding molded articles, are already proposed in various forms as resins such as polystyrene and polypropylene ABS. In the case of injection molding, a cross section having a different thickness is formed without causing defects such as sink marks due to shrinkage of the resin.
    That is, when the thermoplastic resin is injection-molded a molded article having a difference in thickness, the thick portion of the resin filled in the mold solidifies later than the thin portion during cooling and solidification of the molded product, which is a decisive factor in lowering the product value of the molded article. A sync mark is estimated.
    As the conventional injection mold is shown in FIG. 1, the mold 10 includes a cavity 13 having a gate (not shown) inside thereof by the fixed mold 11 and the movable mold 12. On the lower side of the movable mold 12, an air injection tip 20 is installed such that an upper end thereof protrudes into the cavity 13.
    Below the movable mold 12, a plurality of fastening members 14 and a mill pin (not shown) are fastened or disposed at a predetermined position, and the lower side of the air injection tip 20 is not shown in the air supply device and air. It is installed in communication with the supply pipe 30.
    2 is a cross-sectional view showing a tip for injecting air of a conventional injection mold. As shown, the conventional air injection tip 20 is that the main body 21 is made of a single body, the air distribution hole 22 is formed therein.
    The air circulation hole 22 is made narrower in diameter as it goes toward the front end of the main body 21.
    A plurality of air discharge holes 23 are radially penetrated through the front end of the main body 21.
    Since the air injection tip of the conventional injection mold having such a structure is integrally formed as a whole, for example, the air discharge hole 23 is blocked or the inside of the air distribution hole 22 needs to be cleaned and maintained. When performing the maintenance work, there is an uncomfortable problem that must be disassembled from the mold (10).
    In addition, since the air discharge hole 23 formed at the tip of the main body 21 of the air injection tip 20 is finely processed into several pieces, it is not only necessary to maintain the precision of processing but also increase the processing cost.
    Therefore, the present invention was created to solve the above-described problems, and an object of the present invention is to facilitate the maintenance and repair without the need to disassemble the air injection tip from the mold by separating the upper and lower portions of the tip. To provide an air injection tip of an injection mold.
    Another object of the present invention is to provide an air injection tip of an injection mold to reduce the number of air discharge holes formed in the tip end to reduce the processing cost.
    1 is a cross-sectional view showing a conventional injection mold,
    Figure 2 is a cross-sectional view showing the main portion of the air injection tip of the conventional injection mold,
    Figure 3 is a cross-sectional view showing the main portion of the air injection tip of the injection mold according to the present invention.
    * Explanation of symbols for main parts of the drawings
    60; Upper body 62, 72; Air distributor
    64; Bolt part 66 air discharge hole
    70; Lower body 74; Nut part
    Air injection tip of the injection mold according to the present invention for achieving the above object, the air discharge hole is formed through the front end, the upper body is formed with a bolt portion at the lower end, and the fastening is separable from the mutual Characterized in that it consists of a lower body is formed a nut portion.
    Therefore, by allowing the tip to be detachable and reducing the number of micropores, maintenance and repair can be facilitated, thereby further improving maintenance and reducing processing costs.
    Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
    3 is a cross-sectional view showing an air injection tip of the injection mold according to the present invention.
    As shown, the tip for air injection according to a preferred embodiment of the present invention is divided into the upper body 60 and the lower body 70 to facilitate mutual separation, it is possible to distribute the air supplied therein Air distribution holes 62 and 72 are formed, respectively.
    Here, the diameter of the air distribution hole 62 of the upper main body 60 is smaller than the diameter of the air distribution hole 72 of the lower main body 70.
    In addition, a bolt portion 64 is formed at a lower outer diameter of the upper main body 60, while a nut portion 74 is formed at an upper inner diameter of the lower main body 70, and they are coupled to each other by a screwing method. .
    In particular, at the tip of the upper main body 60, one air discharge hole 66 is formed in the center thereof.
    The tip 50 for air injection according to the present invention having such a structure is disassembled because the bolt portion 64 of the upper body 60 and the nut portion 74 of the lower body 70 are coupled to each other by screwing. And since it is easy to assemble, it has an advantageous structure for maintenance and repair.
    In addition, since one air discharge hole 66 is formed at the front end of the upper body 60 unlike the related art, it is relatively easy to mold, thereby reducing the processing cost.
    As described above, the air injection tip of the injection mold according to the present invention facilitates the maintenance and repair of the injection mold by allowing the tip to be detachable and reducing the number of fine pores. Not only can the fill tip be more maintainable, but the machining costs can be reduced.
    As described above, the present invention has been illustrated and described with reference to certain preferred embodiments, but the present invention is not necessarily limited to the above-described embodiments, and the present invention is not limited to the scope of the present invention. Anyone can grow and modify various things.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] An upper body through which air discharge holes are formed at the front end, and a bolt part is formed at a lower end thereof;
    An air injection tip of the injection mold, characterized in that consisting of a lower body formed with a nut portion that can be separable from the bolt portion of the upper body.
    [2" claim-type="Currently amended] The air injection tip of the injection mold according to claim 1, wherein the air discharge hole is formed at one of the upper ends of the upper body.
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR100247780B1|2000-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-11-29|Application filed by 윤종용, 삼성전자 주식회사
    1997-11-29|Priority to KR1019970064547A
    1999-06-15|Publication of KR19990043534A
    2000-03-15|Application granted
    2000-03-15|Publication of KR100247780B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970064547A|KR100247780B1|1997-11-29|1997-11-29|Air injection of injection mold|
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