• 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 second synthetic resin supply flow path structure of the double extrusion molding apparatus to cover the second synthetic resin extruded through the auxiliary extrusion path to the outer surface of the first synthetic resin extruded in a predetermined shape through the main extrusion path. In the conventional second synthetic resin supply passage structure, the second synthetic resin injected through the second synthetic resin inlet 12a 'does not circulate smoothly in the circulation supply passage 12b' and is stagnated at the other side of the inlet 12a '. There was a problem that the molding quality is bad because it is thrown away, such a phenomenon is worse when the wood powder and pigment is added to the second synthetic resin in order to form a wood pattern on the surface of the first synthetic resin, the interior A first branch part 12b connected to the second synthetic resin inlet 12a is provided at one side of the molding mold 10 in which the first synthetic resin moving passage 11 is provided at the center thereof. The upper supply passage 12c is provided at the upper and lower portions of the first branch 12b and the upper supply passage 12c and the lower supply passage 12d, respectively, and is located at the upper center and lower center of the first synthetic resin movement passage 11. 2nd branch part 12e is provided in the front-end | tip part and the lower supply channel | path 12d, and the left supply channel | path 12f and the right supply channel | channel 12g are provided in the left side and the right side of each 2nd branch part 12e. According to the present invention, the second synthetic resin 42 is guided to the upper and lower portions through the first branch portion 12b, and then the first synthetic resin 41 is guided to the left and right sides through the second branch portion 12e. Since the second synthetic resin 42 can be more smoothly supplied to the upper and lower portions of the), the defect rate can be significantly reduced, and the molding quality can be greatly improved.
    公开号:KR20030073923A
    申请号:KR1020020013702
    申请日:2002-03-14
    公开日:2003-09-19
    发明作者:윤종일；이성만
    申请人:윤종일；이성만；
    IPC主号:
    专利说明:

    Second plastic supplying structure for a dual drawing apparatus}
    [19] The present invention relates to a second synthetic resin supply flow path structure of the double extrusion molding apparatus to cover the second synthetic resin extruded through the auxiliary extrusion path to the outer surface of the first synthetic resin extruded in a predetermined shape through the main extrusion path. More specifically, the present invention relates to an improvement such that the second synthetic resin supplied from the sub-extruder can be smoothly coated on the outer surface of the first synthetic resin.
    [20] In general, the tubular body, rod member, plate member, etc. of the synthetic resin material is usually produced by extrusion molding, the double extrusion molding apparatus according to the present invention is the main extruder to which different types of synthetic resin are supplied to one side and the other side of the molding mold And an auxiliary extruder is provided to coat the second synthetic resin extruded by the auxiliary extruder on the outer surface of the first synthetic resin extruded by the main extruder to form a different color or pattern.
    [21] Such a double extrusion molding apparatus is well represented in the registration utility model publication No. 20-0234331, the publication No. 20-0258620, the publication No. 20-0258621, etc., in the conventional double extrusion molding The second synthetic resin supply passage structure of the apparatus is a second synthetic resin inlet (12a ') around the first synthetic resin moving passage (11') formed in the center of the molding mold (10a ') (10b') as shown in Figs. And a plurality of connection passages 12c 'which are connected to the first synthetic resin moving passage 11' at upper and lower portions of the circulation supply passage 12b '. Having was mainly used.
    [22] In the conventional second synthetic resin supply passage structure, when the second synthetic resin is supplied through the second synthetic resin inlet 12a ', the first synthetic resin moving passage 11' is provided through the circulation supply passage 12b 'and the connection passage 12c'. Since it flows into the outer surface of the first synthetic resin passing through), it is possible to coat the second synthetic resin on the outer surface of the first synthetic resin, but the second synthetic resin injected through the second synthetic resin inlet (12a ') is a circulation supply passage There was a problem that the molding quality was poor because it was not circulated smoothly within 12b 'and stagnated and burned on the other side of the injection hole 12a', and such a phenomenon was formed in order to form a tree pattern on the surface of the first synthetic resin. 2 When the wood powder and pigment, etc. were added to the synthetic resin, there was a problem that becomes more severe.
    [23] SUMMARY OF THE INVENTION The present invention has been made in view of the deficiency of the conventional double-extrusion molding apparatus second synthetic resin supply passage structure, and its object is to smoothly supply the second synthetic resin to the outer surface of the first synthetic resin to provide the first synthetic resin. It is an object of the present invention to provide a second synthetic resin supply flow path structure of a double extrusion molding apparatus that can form a pattern on the surface more stably.
    [1] 1 is a perspective view of a double extrusion molding apparatus in accordance with the present invention;
    [2] Figure 2 is a longitudinal cross-sectional view of a double extrusion molded product molded through the double extrusion apparatus.
    [3] 3 is a front view of a first molding mold to which an embodiment of the present invention is applied;
    [4] 4 is a front view of a second molding mold to which the embodiment is applied;
    [5] Figure 5 is a longitudinal sectional view of the combined state of the first molding mold and the second molding mold of the embodiment;
    [6] Figure 6 is a rear view of the first molding mold of the conventional structure
    [7] 7 is a front view of a second molding mold of a conventional structure
    [8] 8 is a longitudinal sectional view of a combined state of a first molding mold and a second molding mold of a conventional structure;
    [9] <Description of Signs of Major Parts of Drawings>
    [10] 1: double extrusion molding apparatus 10: molding mold
    [11] 10a: 1st molding mold 10b: 2nd molding mold
    [12] 11: first synthetic resin moving passage 12a: second synthetic resin inlet
    [13] 12b: first branch 12c: upper supply passage
    [14] 12d: lower supply flow path 12e: second branch
    [15] 12f: Left supply channel 12g: Right supply channel
    [16] 20: main extruder 30: sub-extruder
    [17] 40: double extrusion molded product 41: first synthetic resin
    [18] 42: second synthetic resin
    [24] In order to achieve the above object, the present invention provides a first branch connected to a second synthetic resin inlet on one side of a molding mold in which a first synthetic resin moving flow path is provided at an inner center thereof, and an upper portion at an upper portion and a lower portion of the first branch portion. A supply passage and a lower supply passage are provided, and second branch portions are provided at the front end portions of the upper supply passage and the lower supply passage located in the upper center and the lower center of the first synthetic resin moving passage, and the left and right sides of each second branch portion It is characterized by providing a supply flow path and a right supply flow path, which will be described below in more detail based on the detailed technical contents thereof as follows.
    [25] That is, FIG. 1 is a perspective view of a double extrusion molding apparatus according to the present invention, and FIG. 2 is a longitudinal cross-sectional view of a double extrusion molding product molded by the same double extrusion molding apparatus, and FIG. One embodiment of the present invention is shown to 5, the present invention is provided with a main extruder 20 for supplying the first synthetic resin 41 to the rear of the molding die 10, one side of the molding mold 10 In constructing the second synthetic resin supply passage structure of the double extrusion molding apparatus 1 in which the auxiliary extruder 30 for supplying the second synthetic resin 42 is provided, the first synthetic resin moving passage 11 is provided at the inner center thereof. The first branch portion 12b connected to the second synthetic resin inlet 12a is provided at one inner side of the molding mold 10, and the upper supply passage 12c and the upper and lower portions of the first branch portion 12b are provided. The lower supply passage 12d is provided, and the upper middle and the lower middle of the first synthetic resin movement passage 11 2nd branch part 12e is provided in the front-end | tip part of the upper supply flow path 12c and 12d of the lower supply flow path 12d which are located in the center, and the left supply flow path 12f is left and right of each 2nd branch part 12e. And the right supply passage (12g) is to be prepared.
    [26] In the illustrated embodiment, the second synthetic resin supply passage is provided at the junction of the first molding die 10a and the second molding mold 10b, and the second synthetic resin inlet 12a connected to the auxiliary extruder 30 is formed in the second molding line. It is provided in one side of the metal mold | die 10b.
    [27] Reference numerals 10c to 10g in the drawings refer to the third to seventh molding molds, and 40 is a double extrusion molding product.
    [28] In the present invention configured as described above, when the second synthetic resin 42 is supplied from the auxiliary extruder 30 to the second synthetic resin inlet 12a on one side of the second molding die, the upper branch branches upward and downward from the first branch part 12b. After moving to the supply passage 12c and the lower supply passage 12d, the first branched resin 41 is branched from the second branch portion 12e to the left and right again through the left supply passage 12f and the right supply passage 12g. Into the outer surface of the) evenly, since the flow of the second synthetic resin 42 is not stagnant in the second synthetic resin supply process of the present invention, the second synthetic resin 42 and the wood powder or pigment that can be included therein It burns out and there is no phenomenon that molding quality is deteriorated.
    [29] As described above, the present invention guides the second synthetic resin 42 to the upper and lower portions through the first branch portion 12b and then to the left and the right side through the second branch portion 12e to the first synthetic resin ( The second synthetic resin 42 can be smoothly supplied to the upper and lower portions of 41). According to the present invention, the second synthetic resin 42 can be more smoothly supplied. The effect of being able to greatly improve the molding quality can be obtained.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] The main extruder 20 for supplying the first synthetic resin 41 is provided at the rear of the molding die 10, and the auxiliary extruder 30 for supplying the second synthetic resin 42 to one side of the molding mold 10 is provided. In the double extrusion molding apparatus 1, the first branch portion 12b connected to the second synthetic resin inlet 12a at one inner side of the molding die 10 in which the first synthetic resin moving passage 11 is provided at the inner center thereof. ) And an upper supply passage 12c and a lower supply passage 12d at upper and lower portions of the first branch 12b, and located at the upper center and lower center of the first synthetic resin moving passage 11. A second branch portion 12e is provided at the tip of the upper supply passage 12c and the front end of the lower supply passage 12d, and the left supply passage 12f and the right supply passage are provided on the left and right sides of the respective second branch portions 12e. A second synthetic resin supply passage structure of a double extrusion molding device, characterized in that 12g is provided.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-03-14|Application filed by 윤종일, 이성만
    2002-03-14|Priority to KR1020020013702A
    2003-09-19|Publication of KR20030073923A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020020013702A|KR20030073923A|2002-03-14|2002-03-14|a second plastic supplying structure for a dual drawing apparatus|
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