• 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 a method for forming an injection molded article having a plurality of protrusions, comprising: inserting a synthetic resin thin film into a thin film insertion region formed in an inner cavity of upper and lower molds; Injecting molding material into the inlet; The molten resin is formed by penetrating the thin film by the injection temperature and the injection pressure, and filling the protrusion part in the lower part of the thin film insertion area to form protrusions. It consists of an injection molding step to form. The present invention has the advantage that it is possible to simply bond the synthetic resin film to the body of the injection molding by a simple injection molding process, and at the same time can easily form a plurality of protrusions projecting onto the thin film. In addition, the injection molding body and the thin film is very firmly bonded, the protrusion is formed integrally with the injection molding body, there is an advantage that the product is not only firm but also formed very precisely.
    公开号:KR19990073032A
    申请号:KR1019980053885
    申请日:1998-12-09
    公开日:1999-10-05
    发明作者:이경표
    申请人:이경표；
    IPC主号:
    专利说明:

    METHOD FOR FORMING INJECTION MOLDING PRODUCT TAKING MANY PROJECTION
    The present invention relates to a method for forming an injection molded article having a plurality of protrusions, and in particular, to form an injection molded article having a plurality of protrusions for joining a thin film to an injection molded body and simultaneously forming a plurality of protrusions integral with the body to penetrate the thin film. It is about a method.
    When a thin film is bonded to a synthetic resin plate, and a plurality of protrusions integrally formed on the synthetic resin plate penetrate the thin film and form an injection molded product such as a coin mat or a vehicle pallet, first, a plurality of protrusions on the synthetic resin plate Injection molding to be provided, and after forming a plurality of holes in the thin film by a separate process, the thin film is placed on the synthetic resin plate can be produced by bonding by bonding the protrusions of the synthetic resin plate so as to project through the holes of the thin film.
    However, this method is difficult to manufacture because it has to go through complicated processes such as injection molding, drilling, and bonding, and the plurality of protrusions formed on the synthetic resin board are extruded by precisely matching each of the plurality of holes formed in the thin film. Since the work is very demanding, there is a problem that it is practically impossible to manufacture a reliable high quality product.
    The present invention has been made in order to solve the above-mentioned conventional defects and problems, a plurality of projections formed integrally with the injection molding body, while bonding a thin film marked with the contents of advertising, promotion, etc. to the body of the injection molding Is to provide a method for forming an injection molded article having a plurality of projections that can be easily formed by injection molding the protrusion formed on the thin film injection molding process.
    In order to achieve the above object, the present invention includes the steps of inserting a thin film in the thin film insertion region formed inside the upper and lower molds; Injecting molding material into the inlet; The molten resin is formed by penetrating the thin film by the injection temperature and the injection pressure, and filling the protrusion part in the lower part of the thin film insertion area to form protrusions. It consists of an injection molding step to form.
    1 to 5 are views of the present invention,
    1 is a longitudinal sectional view of a mold according to the present invention;
    Figure 2 is a longitudinal sectional view showing a form in which a molding material is injected into a mold according to the present invention.
    Figure 3 is a perspective view of the injection molding produced by the present invention.
    Figure 4 is a plan view of the injection molding produced by the present invention.
    5 is a partially enlarged cross-sectional view of an injection molding manufactured according to the present invention.
    <Description of the symbols for the main parts of the drawings>
    1: mold 1a: injection hole
    2,3: upper and lower type 4: cavity
    5: protrusion forming part 6: thin film insertion area
    7: injection molding body molding part 8: template
    10 injection molding 11: thin film
    12: injection molding body 13: projection
    14: display unit
    Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail as follows.
    1 to 5 are views of the present invention, Figure 1 is a longitudinal cross-sectional view of the mold according to the present invention, Figure 2 is a longitudinal cross-sectional view showing a form in which the molding material is injected into the mold according to the present invention. In the drawings, 1 shows a mold, 2 shows an upper mold, and 3 shows a lower mold.
    3 shows a perspective view of the injection molding produced by the present invention, FIG. 4 shows a plan view of the injection molding produced by the present invention, and FIG. 5 shows a partially enlarged cross-sectional view of the injection molded product manufactured by the present invention. Is shown.
    Referring to this, the method for forming an injection molded article having a plurality of protrusions according to the present invention includes a thin film 11 such as a synthetic resin thin film in the thin film insertion region 6 formed in the upper, lower molds 2 and 3 of the mold 1. Inserting; Injecting molten resin into the inlet (1a); The molten resin is drilled through the thin film 11 by the injection temperature and the injection pressure and filled into the protrusion forming portion 5 below the thin film insertion region 6 to form the projection 13 and the thin film insertion region 6 It is composed of an injection molding step to fill the injection molding body molding portion 7 of the upper portion to form the injection molding body (12).
    The inner cavity 4 of the upper and lower molds 2 and 3 of the mold 1 is provided with a thin film insertion region 6 on the protrusion forming part 5, and on the injection molding body forming part 7. It is formed to be provided.
    The injection molded product 10 is, for example, a coin mat for easily handling coins, a mat laid on an indoor floor of an automobile, and the thin film 11 is bonded to an upper surface of the injection molded body 12, and the injection molded product The protrusion 13 integral with the body 12 is formed to protrude upward from the thin film 11.
    The protruding portion 5 of the cavity 4 may be integrally formed on the lower die 3, and a separate template 8 having a plurality of protrusions forming portions 5 may be formed in the cavity of the lower die 3. It can also be produced in the form inserted in (4).
    The thin film 11 of the injection molded product 10 is printed with a display unit 14 such as signs, letters, and pictures for advertisement and promotion.
    According to the injection molding method having a plurality of protrusions of the present invention, the upper, lower molds (2) and (3) of the mold (1) joined at the time of injection molding are opened, and the protrusions of the lower mold (3) are formed on the upper side. When the thin film 11 is inserted into the thin film insertion region 6, the upper and lower molds 2 and 3 are combined, and the molding material is injected into the injection hole 1a of the upper mold 2, the molten resin The injection temperature and pressure penetrate the thin film 11 and penetrate into the protrusion forming part 5 to form the protrusion 13, and are filled in the injection molding body forming part 7 to form the injection molded body 12.
    At this time, the mold 1 is cooled by circulating through the cooling water passage, for example, so that the thin film 11 in close contact with the bottom surface of the cavity 4 of the lower mold 3 maintains its shape while the molten resin is thin film 11. It can be injected into the protrusion forming part (5).
    Figure 3 shows another embodiment of the mold (1), the template (8) can be coupled to the lower mold (3) in the form of a projection jaw (8a) formed on the upper periphery, the mold (8) and the lower mold ( Form 3) can be combined in many different forms.
    When the template 8 having the protrusion forming part 5 is combined without directly forming the protrusion forming part 5 on the lower mold 3, the protrusion 8 has high compatibility when the size and shape of the protrusion 13 are different. .
    As described above, the present invention can simply bond the thin film 11 to the body 12 of the injection molded product 10 by a simple injection molding process, and at the same time, a plurality of protrusions 13 protruding from the thin film 11. There is an advantage that can be formed simply. In addition, the injection molding body 12 and the thin film 11 are very firmly bonded, and the protrusion 13 is formed integrally with the injection molding body 12, so that the product is not only firm but also the product is formed very precisely. There is this.
    Such a present invention is a synthetic resin thin film printed with the contents of advertising, publicity, etc. is bonded to the synthetic resin body, a plurality of protrusions formed integrally with the body is projected to the upper portion of the thin film, for example, to manufacture a pallet for automobiles, etc. Since the productivity is high at the time, it can be applied very advantageously, and can be widely applied to the production of various injection moldings having such a shape.
    While the embodiments of the present invention have been described so far, the present invention is not limited thereto, and various embodiments which can be modified and changed within the true spirit and scope of the principles described and claimed are within the protection scope of the present invention. You will have to understand.
    权利要求:
    Claims (5)
    [1" claim-type="Currently amended] Inserting the thin film 11 into the thin film insertion region 6 formed in the upper, lower molds 2 and 3 of the mold 1; Injecting molding material into the inlet (1a); The molten resin is drilled through the thin film 11 by the injection temperature and the injection pressure and filled into the protrusion forming portion 5 below the thin film insertion region 6 to form the projection 13 and the thin film insertion region 6 The injection molding method having a plurality of projections, characterized in that the injection molding step to fill the upper injection molding body molding portion 7 to form an injection molding body (12).
    [2" claim-type="Currently amended] According to claim 1, wherein the mold (1) is the upper cavity, the inner cavity (4) of the lower mold (2), (3) is provided with a thin film insertion region (6) on the protrusion forming portion 5, the injection molding thereon Injection molding method having a plurality of projections, characterized in that formed to be provided with a body molding portion (7).
    [3" claim-type="Currently amended] The method according to claim 1, wherein the protrusion forming part (5) of the lower mold (3) is formed integrally with the lower mold (3).
    [4" claim-type="Currently amended] The die 8 is inserted into the cavity 4 of the lower die 3, and the protrusion 8 is formed by forming the protrusion 8 formed therein. Injection molding method.
    [5" claim-type="Currently amended] The method of claim 1, wherein the display unit (14) is formed on the thin film (11).
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    同族专利:
    公开号 | 公开日
    KR100342022B1|2002-11-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-12-09|Application filed by 이경표
    1998-12-09|Priority to KR1019980053885A
    1999-10-05|Publication of KR19990073032A
    2002-11-23|Application granted
    2002-11-23|Publication of KR100342022B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980053885A|KR100342022B1|1998-12-09|1998-12-09|Method for forming injection molding product taking many projection|
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