1317693 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種沖壓刀模，特別是指一種可供裝 設在-沖廢機台而用以對-欲進行模内射出成型之塑料或 金屬薄膜進行餘料裁切的沖壓刀模。 【先前技術】 習知用在模内射出成型的薄膜在放入射出成型模具之 前，需先以一沖壓機器將薄膜周邊多餘的餘料沖切去除後 ’再將薄膜放入模具中進行射出成型。 參閱圖1，例如，以該沖壓機器（圖未示）裝設一框狀 的沖壓賴1為例’對該薄膜100進行沖切時，是利用沖 壓刀模！對薄膜1〇〇沖壓的力量將薄膜⑽裁切出符合沖 壓刀模！内側框緣10的外型輪廓，藉此將薄膜ι〇〇周邊的 餘料切除。而由於在沖壓過程中，沖壓刀模！的底面是士 全與薄臈⑽接觸’因此’在沖壓過程中，沖壓刀模^ 薄膜loo A面積的接觸容易形成沖壓的阻力，且由於薄膜 _通常為具延展性的材料，因此，在沖壓的過程中，薄膜 ⑽容易因此受到沖壓刀模i的過度拉扯，而在鄰近直切口 緣的區域產生如圖2所示之被拉扯的痕跡，俗稱為白邊⑻ ，造成當薄膜HH)射出成型而貼附在成品1〇2表面時，該 白邊101形成成品102外觀上的瑕疵。 【發明内容】 因此，本發明之目的，即在提供一種可減少沖壓時血 4膜之接觸面積，藉此使被沖壓裁切的薄膜q產生白邊 1317693 的沖壓刀模。 本發明的另一目的，在於提供一種沖壓刀緣 構排列的沖壓刀模。 於是，本發明沖壓刀模是用以裝設於一沖壓機台並對 -塑膠或金屬材質而可供用於模内射出成型的薄膜進行餘 料裁切，該沖壓刀模具有一沖壓刀緣以及多數沿該沖壓刀 緣排列的齒狀結構。 依據本發明之沖壓刀模，其中，該些齒狀結構可為方 形、三角形或梯形。 本發明沖壓刀模利用將其與薄膜接觸之部分設計成排 列的齒狀結構，藉此減少沖壓時與薄膜之接觸面積，便可 降低白邊發生機率，避免影響薄膜外觀。 【實施方式】 ㈣本發日月之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細1317693 IX. Description of the Invention: [Technical Field of the Invention] The present invention relates to a stamping die, and more particularly to a plastic that can be mounted on a scrapping machine for in-mold injection molding. Or a metal film for punching the die. [Prior Art] It is known that the film formed by injection molding in the mold needs to be punched and removed by a punching machine before the film is injected into the molding die, and then the film is placed in the mold for injection molding. . Referring to Fig. 1, for example, a punching machine 1 (not shown) is provided with a frame-shaped stamping 1 as an example. When the film 100 is punched, a punching die is used. The force of stamping the film 1 裁 cuts the film (10) into a punching die! The contour of the inner rim 10 is thereby cut away from the remainder of the film. And because of the stamping process, stamping die! The bottom surface is the contact between the full and the thin (10). Therefore, in the stamping process, the contact of the stamping die ^ film loo A area is easy to form the resistance of the stamping, and since the film _ is usually a ductile material, therefore, in the stamping During the process, the film (10) is easily over-pulled by the punching die i, and a drawn trace as shown in Fig. 2 is produced in the region adjacent to the straight slit edge, commonly known as the white edge (8), which causes the film HH to be injection molded. When attached to the surface of the finished product 1, the white edge 101 forms a flaw in the appearance of the finished product 102. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a stamping die which can reduce the contact area of a blood film at the time of stamping, thereby producing a white edge 1317693 by the press-cut film q. Another object of the present invention is to provide a stamping die having a stamping knife edge arrangement. Therefore, the stamping die of the present invention is used for mounting on a punching machine and for cutting out a plastic or metal material for in-mold injection molding, the punching die has a punching edge and a majority A toothed structure arranged along the stamping edge. According to the stamping die of the present invention, the toothed structures may be square, triangular or trapezoidal. The stamping die of the present invention is designed to have a toothed structure in contact with the film, thereby reducing the contact area with the film during pressing, thereby reducing the incidence of white edges and avoiding affecting the appearance of the film. [Embodiment] (4) The foregoing and other technical contents, features and effects of the present day and the month are as follows in detail with reference to a preferred embodiment of the reference drawings.
清楚的呈現。 T J 參_ 3與圖4,本發” M刀模2之_較佳實施例包 3 -呈框狀的刀體21、一位於該框狀之刀❹的㈣刀緣 ⑽施例中，所指的㈣刀緣2〇乃為框狀的刀體21 綾貝框緣，除此之外’該冲廢刀模2還包含沿著沖屢刀 ^ ^列形成於刀體21底面22的多數齒狀結構Μ，該些 齒狀、4構23是呈方形齒狀。 刀模ΓΓ沖遷刀模2對薄膜200進行沖塵時，是使該沖屢 底面22面向薄膜細，使該些齒形結構23朝向薄膜 1317693 =用該些齒狀結構23,便可減少沖壓刀模2對薄膜沖 ㈣、的瞬間與薄膜2〇0接觸的面積，藉此降低薄膜 」壓刀模2進行㈣的阻力’避免薄膜200被過度拉扯 而在切口緣產生白邊的現象’避免影響該薄膜細射出成 型後披覆於成品的外觀。Clear presentation. TJ _ 3 and FIG. 4, the present invention, the M-die 2, the preferred embodiment package 3, the frame-shaped blade body 21, and the (four) blade edge (10) embodiment of the frame-shaped blade The (4) blade edge 2〇 is a frame-shaped blade body 21 mussel frame edge, and otherwise, the punching die 2 also includes a majority formed on the bottom surface 22 of the blade body 21 along the row of multiple cutters. The tooth-shaped structure Μ, the teeth-shaped, 4-frame 23 are in the shape of a square tooth. When the die-cutting die 2 is used to dust the film 200, the punched surface 22 is made thinner toward the film, so that the teeth are made. The shape structure 23 faces the film 1317693. With the tooth-like structures 23, the area of the punching die 2 to contact the film 2〇0 with the instant of the film punching (4) can be reduced, thereby reducing the film "pressing die 2" (4) The resistance 'avoids the phenomenon that the film 200 is excessively pulled to produce a white edge at the edge of the slit' to avoid affecting the appearance of the film which is coated on the finished product after fine film formation.
本實施例中’該沖壓刀模2的框狀刀體21僅為舉出說 明的一種實施態樣，該㈣刀模2刀體21的結構並不以此 為限，主要是在沖壓刀帛2與薄膜細接觸的部分增加齒 狀'-構23，藉此減少沖壓刀模2與薄膜細接觸的面積。 齒型結構23並不以方形齒為限，如圖5與圖6所示， 齒狀結構23’、23”也可以是呈三角形或梯形等等，同樣可 達到減少刀體21與薄膜扇接觸面積，降低白邊發生之機 率〇 綜上所述，本發明將沖a刀模2與薄膜2〇〇接觸的部 分設置呈齒狀排列結構，藉此便可減少沖壓時與薄膜· 接觸的面積，降低沖壓刀模2對薄膜2〇〇拉扯的力量使 薄膜200㈣口緣不易產生白邊的現象，避免影響該薄膜 2口〇〇的外觀’進而’當該薄膜2〇〇以模内射出成型披覆在成 品（圖未示）外表面時，便不會影響到成品外觀。 惟以上所述者，僅為本發明之較佳實施例而已，當不 月b以此限疋本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。此外，摘要部分和標題僅是 用來辅助專利文件搜尋之用，並非用來限制本發明之權力 1317693 範圍。【圖式簡單說明】 圖1是-薄膜進行沖壓加工以去除周邊餘料的 示意圖 圖2是說明以圖i習知的沖壓刀模易於薄膜 之示意圖； =3是-俯視圖’說明本發明沖壓刀模—較佳實施例 具有多數齒型結構； 刀姆圖4是沿圖3中1^方向的剖視圖，說明本發明沖壓 Μ之齒型結構可為方形齒； 圖5是-剖視圖，說明本發明 為三角形齒；以及 沖壓刀模之齒型結構可 為梯形齒 圖6疋-剖視圖’說明本發明沖壓刀模之齒型結構可 1317693 【主要元件符號說明】 2 ..........沖壓刀模 20 .........沖壓刀緣 200……薄膜 21 .........刀體 22 .........底面 23 .........齒狀結構 23’........齒狀結構 23” .......齒狀結構In the present embodiment, the frame-shaped blade body 21 of the stamping die 2 is only one embodiment of the description. The structure of the blade body 21 of the die cutter 2 is not limited thereto, and is mainly in the stamping blade. 2 The portion in fine contact with the film is increased in the toothed shape 23, thereby reducing the area in which the punching die 2 is in fine contact with the film. The tooth structure 23 is not limited to the square teeth. As shown in FIG. 5 and FIG. 6, the tooth structures 23', 23" may also be triangular or trapezoidal, etc., and the contact between the blade body 21 and the film fan can also be reduced. Area, reducing the probability of occurrence of white edges. As described above, the present invention provides a tooth-like arrangement of the portions of the die 2 that are in contact with the film 2, thereby reducing the area of contact with the film during stamping. , reducing the pulling force of the punching die 2 to the film 2, so that the edge of the film 200 (four) is not easy to produce white edges, to avoid affecting the appearance of the film 2 进而 进而 'and then' when the film 2 〇〇 in-mold injection molding When it is coated on the outer surface of the finished product (not shown), it will not affect the appearance of the finished product. However, the above is only the preferred embodiment of the present invention, and is not limited to the present invention. Scope, that is, the simple equivalent changes and modifications made by the invention in the scope of the invention and the description of the invention are still within the scope of the invention. In addition, the abstract and the title are only used to assist in the search of patent documents. Use, not use To limit the scope of the present invention, the power of 1317693. [Simplified illustration of the drawings] Fig. 1 is a schematic view of a film subjected to press working to remove peripheral residual material. Fig. 2 is a schematic view showing an easy film of a stamping die known from Fig. i; Is a top view of the stamping die of the present invention - the preferred embodiment has a plurality of toothed structures; the blade Figure 4 is a cross-sectional view taken along line 1 of Figure 3, illustrating that the toothed structure of the stamping crucible of the present invention can be a square tooth; Figure 5 is a cross-sectional view showing the present invention as a triangular tooth; and the toothed structure of the stamping die can be a trapezoidal tooth Figure 6疋-cross-sectional view illustrating the toothed structure of the stamping die of the present invention 1317693 [Major component symbol description] 2 .......... stamping die 20 ... ... stamping edge 200 ... film 21 ... ... knife body 22 .... .. bottom surface 23 .... tooth structure 23 '........ tooth structure 23" ....... tooth structure