JP4275083B2 - Manufacturing method of operation parts for mobile phone and manufacturing apparatus used in the manufacturing method - Google Patents

Description

  The present invention relates to a manufacturing method for manufacturing an operation component attached to a mobile phone and a manufacturing apparatus used in the manufacturing method.

  Conventionally, an operation part made of a resin having an operation button for inputting numbers, alphabets, and the like is attached to a mobile phone. Since the operation component occupies a large proportion of the surface area of the mobile phone and is conspicuous, the design of the entire mobile phone is improved by improving the design of the operation component.

In addition, as a device for manufacturing a molded product using a molding material such as a resin material, for example, a so-called die slide type device in which a slide die that forms a cavity with the movable die is disposed between the fixed die and the movable die. It is known (see, for example, Patent Document 1). When forming a hollow molded product using this apparatus, first, a molten molding material is supplied to a first cavity formed by a movable mold and a slide mold to mold two halves. . Thereafter, the mold is opened, the slide mold is moved, the open sides of the two halves are combined and the mold is closed again, and the second mold is formed around the junction of the halves on the separate molding surfaces of the slide mold and the movable mold. A cavity is molded, a molding material in a molten state is supplied to the second cavity, and the two halves are integrated to obtain a molded product.
JP 62-87315 A (FIGS. 1 to 8)

  By the way, when improving the design of the operation parts of the mobile phone, the operation parts are divided into operation buttons and a support material that supports the operation buttons, the operation buttons are formed of a transparent molding material, Molding with molding material, and placing the operation buttons and the support material between these operation buttons and the support material so that the pattern material such as numerals and alphabets can be seen from the front side of the operation button. Conceivable. In this way, since the pattern material can be seen through the operation button through the operation button from the user of the mobile phone, the pattern material can be deepened to improve the design of the operation part. it can.

  However, in the case where the pattern material is provided between the operation button and the support material, the step of forming the operation button and the support material, the step of attaching the pattern material to the operation button or the support material, the operation button and the support material, It is necessary to integrate the processes. As a result, the manufacturing man-hours of the operation parts increase and the cost increases.

  The present invention has been made in view of such a point, and the object of the present invention is to fix a mobile phone operation part in which a pattern material is disposed between an operation button and a support material. By using a slide mold that moves between a mold and a movable mold, it is possible to reduce the number of manufacturing steps and reduce the cost of operation parts.

  In order to achieve the above object, in the present invention, the first molding material in a molten state is supplied to the first cavity formed between the movable molding and the first molding surface of the slide mold, and the pattern material is applied. After forming the operation button, the slide mold is moved to supply the molten second molding material to the second cavity formed between the movable mold and the second molding surface of the slide mold, and the second molding material By solidifying, the support material and the operation button can be integrated.

  The invention of claim 1 is an invention of a method of manufacturing an operation part for a mobile phone.

  Specifically, for a mobile phone in which a pattern material facing the operation button is provided between an operation button made of a transparent first molding material and a support material made of a second molding material and supporting the operation button. It is intended for a method of manufacturing an operation part.

  Then, the fixed mold and the movable mold are closed, and a first cavity is formed between the first molding surface of the slide mold disposed between the fixed mold and the movable mold and the molding surface of the movable mold. At the same time, the pattern material is arranged on the slide mold side of the first cavity, and then the first molding material in a molten state is supplied to the first cavity and solidified to obtain an operation button to which the pattern material is attached. Then, the fixed mold and the movable mold are opened, the operation button is held by the movable mold, and then the slide mold is operated by the second molding surface of the slide mold being held by the movable mold. The fixed mold and the movable mold are closed until they face each other, and a second cavity is formed between the second molding surface of the slide mold and the molding surface of the movable mold. Supplying the second molding material in a molten state to the two cavities The molding material by solidifying integrally with pattern material side of the operation button, a structure to obtain the operation button and the mobile telephone for operation part pattern material is provided between the support member.

  According to this configuration, when the molten first molding material supplied to the first cavity is solidified, the first molding material is integrated with the pattern material. Thereby, an operation button having a pattern material on the slide mold side is obtained, and the operation button is held in a movable mold after the mold is opened. With the operation button held in the movable mold, the second cavity is formed by moving the slide mold and closing the mold with the second molding surface facing the operation button. At this time, since the pattern material of the operation button is located on the second molding surface side, when the second molding material in the molten state supplied to the second cavity is solidified, the second molding material is the pattern material of the operation button. Integrate with the side. Accordingly, it is possible to attach a pattern material to the operation button simultaneously with the formation of the operation button, and to integrate the support material into the operation button simultaneously with the formation of the support material. Thus, an operation component for a mobile phone in which a pattern material is provided between the materials is obtained.

  The invention of claim 2 is an invention of an apparatus for manufacturing an operation part for a mobile phone.

  Specifically, for a mobile phone in which a pattern material facing the operation button is provided between an operation button made of a transparent first molding material and a support material made of a second molding material and supporting the operation button. It is intended for manufacturing equipment that manufactures operating components.

  And a fixed mold, a movable mold provided to be movable relative to the fixed mold, and the fixed mold and the movable mold. The first molding surface and the second molding surface are disposed on the movable mold side. A slide mold having the first mold surface facing the movable mold molding surface, and a second mold surface facing the movable mold molding surface. A moving means for moving the first molding material to the first cavity, a pattern material arranging means for arranging the pattern material on the slide mold side of the first cavity, and melting the first molding material to supply to the first cavity And a molding material supply means for melting the second molding material and supplying it to the second cavity.

  According to this configuration, the first cavity is formed by closing the first molding surface of the slide mold and the molding surface of the movable mold so that the pattern material is arranged in the first cavity by the pattern material arranging means. Is done. When the first molding material supplied to the first cavity by the molding material supply means is solidified, it is possible to obtain an operation button having a pattern material on the slide mold side. Then, when the fixed mold and the movable mold are opened, the operation button is held on the molding surface of the movable mold, and then the slide mold is moved by the moving means until the second molding surface faces the molding surface of the movable mold. The second cavity is formed by closing the mold. At this time, since the pattern material of the operation button is located on the second molding surface side, when the second molding material supplied to the second cavity by the molding material supply means is solidified, it is integrated with the pattern material side of the operation button. . Therefore, as in the invention of claim 1, it is possible to attach a pattern material to the operation button simultaneously with the formation of the operation button, and to integrate the support material into the operation button simultaneously with the formation of the support material. As a result, an operation component for a mobile phone in which a pattern material is provided between the operation button and the support member is obtained.

  In the invention of claim 3, in the invention of claim 2, the pattern material arranging means comprises a long film member in which a plurality of pattern materials are arranged in a predetermined direction, and the film member is a movable type. The pattern material is arranged in order in the first cavity by moving the film member in the predetermined direction for each molding cycle of the mobile phone operation component arranged between the slide mold and the mobile phone. .

  According to this configuration, when one molding cycle ends, the pattern material is removed from the portion disposed in the first cavity of the film member. And in the next molding cycle, when the film member is moved in the direction in which the pattern material is arranged by the pattern material arranging means, the next pattern material arranged in the pattern material attached in the previous molding cycle is arranged in the first cavity, The pattern material is applied to the operation button in the next molding cycle. Therefore, for example, when the fixed mold and the movable mold are opened when the operation part is removed, it is possible to move the film member at the same time in parallel with the mold opening process and arrange the next pattern material in the first cavity. Thus, it is possible to avoid an increase in the time required for the molding cycle.

  In the invention of claim 4, in the invention of claim 3, the molding material supply means is configured to supply the first molding material from the fixed mold side, and the film member is supplied from the molding material supply means. An inlet for allowing the first molding material to flow into the first cavity is provided.

  According to this configuration, the first molding material supplied by the molding material supply means can be allowed to flow into the first cavity from the inflow port of the film member.

  In the invention of claim 5, in the invention of claim 3 or 4, the molding material supply means is configured to supply the second molding material from the fixed mold side, and between the pattern materials arranged in a predetermined direction on the film member. Are provided with an opening larger than the outer shape of the second molding surface of the slide mold and the outer shape of the movable molding surface, and the pattern material arranging means is provided between the second molding surface and the movable molding surface. It is assumed that when two cavities are formed, the film member is moved until the periphery of the opening is located outside the second cavity.

  According to this configuration, after forming the operation button, when the slide mold is moved to form the second cavity, the film member is moved by the pattern material arranging means so that the peripheral edge of the opening of the film member is moved to the second cavity. It becomes possible to position outside. Accordingly, when the second molding material is supplied to the second cavity, the film member does not get in the way, and the second molding material supplied to the second cavity is prevented from being integrated with the film member. .

  According to the first aspect of the present invention, since the pattern material is arranged in the first cavity formed between the first molding surface of the slide mold and the movable mold, the molten first molding material is supplied. The pattern material can be attached to the operation buttons simultaneously with the formation of the operation buttons. Since the operation button is held by the movable mold and then the second molding material in a molten state is supplied to the second cavity formed by moving the slide mold, the support material is simultaneously formed with the molding of the support material. It is possible to obtain an operation component for a mobile phone in which a pattern material is provided between the operation button and the support material in an integrated manner with the operation button. As a result, it is possible to reduce the number of manufacturing steps for the operation parts for the mobile phone, and to reduce the cost.

  According to the invention of claim 2, as in the invention of claim 1, a pattern material can be applied to the operation button simultaneously with the molding of the operation button, and the support material is used as the operation button simultaneously with the molding of the support material. Since the cellular phone operation parts can be integrated, the manufacturing steps of the cellular phone operation parts can be reduced, and the cost can be reduced.

  According to the invention of claim 3, a plurality of pattern materials are provided side by side on the film member, and the pattern members are sequentially arranged in the first cavity by moving the film member for each molding cycle of the mobile phone operation part. The pattern material can be disposed in the first cavity without increasing the time required for one molding cycle.

  According to invention of Claim 4, a 1st molding material can be poured in into the desired position in a 1st cavity from the inflow port of a film member, and the defect of the operation components for mobile phones can be suppressed.

  According to the invention of claim 5, since the opening is formed in the film member and the periphery of the opening is positioned outside the second cavity, the film member does not interfere with the supply of the second molding material. The second molding material can be supplied smoothly, and the second molding material supplied to the second cavity can be prevented from being integrated with the film member, thereby eliminating defects in the operation parts for mobile phones. Can be suppressed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a manufacturing apparatus 1 according to an embodiment of the present invention. The manufacturing apparatus 1 manufactures an operation component 100 for a mobile phone.

  In the description of this embodiment, the structure of the operation component 100 will be described before the structure of the manufacturing apparatus 1 is described. As shown in FIGS. 7 and 8, the operation component 100 is configured by integrating a plurality of operation buttons 101 and a support member 102 that supports the operation buttons 101. Between the support material 102, a pattern material 103 such as numerals and alphabets is provided. The operation button 101 is made of a first molding material, and a hard material such as a transparent ABS resin can be used as the first molding material. On the other hand, the support material 102 is made of a second molding material, and as this second molding material, for example, a soft material such as transparent silicon rubber can be used. When the user presses the operation button 101 in a state where the operation component 100 is assembled to the mobile phone, the support material 102 is elastically deformed, and the operation button 101 is displaced by an amount corresponding to the deformation of the support material 102, and the user feels the operation feeling Can be obtained. Moreover, the 1st molding material should just have the transparency of the grade which can see the pattern material 103 from the surface side of a 1st molding material, and may be colored.

  Next, the manufacturing apparatus 1 will be described. The manufacturing apparatus 1 includes a molding die 2 and an injection molding machine 3 as a molding material supply means of the present invention. The molding die 2 includes a fixed die 4, a movable die 5 that moves forward and backward with respect to the fixed die 4, and a slide die 6 that is disposed between the fixed die 4 and the movable die 5.

  The injection molding machine 3 includes a first injection unit 7 and a second injection unit 8. The first injection unit 7 is configured to knead the first molding material into a molten state and inject from the injection nozzle 7a. On the other hand, the second injection unit 8 is configured to knead the second molding material into a molten state and inject it from the injection nozzle 8a. The first injection unit 7 and the second injection unit 8 are controlled independently by a control device (not shown).

  In the description of this embodiment, for convenience of explanation, the left side when the molding die 2 is viewed from the injection nozzles 7 and 8 side is simply referred to as “left”, and similarly to the right. The right side is simply called “right”.

  A fixed platen 10 is provided on a bed (not shown) of the injection molding machine 3, and the fixed mold 4 is attached to the fixed platen 10. A first sprue 11 that communicates with the injection nozzle 7 a of the first injection unit 7 is provided at a substantially central portion of the fixed mold 4 and the fixed platen 10. Further, as shown in FIG. 9, a second sprue 12 is provided on the left side of the fixed mold 4 and the first sprue 11 of the stationary platen 10 to communicate with the injection nozzle 8 a of the second injection portion 8. . On the surface of the fixed mold 4 on the slide mold 6 side, a fixed mold side first runner 13 that communicates with the downstream end of the first sprue 11 is provided at a substantially central portion, and the left side of the fixed mold side first runner 13 is provided. A fixed second runner 14 is provided to communicate with the downstream end of the second sprue 12.

  The upper and lower portions of the fixed mold 4 are respectively provided with receiving recesses 16 for receiving demolding devices 15 provided above and below the slide mold 6.

  The dimension of the slide mold 6 in the vertical direction is longer than the dimension of the fixed mold 4 in the vertical direction, and the slide mold 6 is attached to the fixed mold 4 via a moving mechanism (not shown). The moving mechanism includes an advancing / retreating cylinder for moving the slide mold 6 forward and backward with respect to the fixed mold 4 and a slide cylinder for moving the slide mold 6 in the vertical direction along the mold dividing surface of the fixed mold 4 and the movable mold 5. It comprises and constitutes the moving means of the present invention.

  As shown in FIG. 1, the upper half portion of the surface of the slide die 6 on the movable die 5 side is formed to be substantially flat, and the upper half portion is formed with a second portion forming the support material 102 side of the operation button 101. One molding surface 20 is provided. In the upper half of the slide mold 6, a plurality of slide mold side first runners 21 communicating with the fixed mold side first runner 13 are provided corresponding to the number of operation buttons 101. The downstream ends of the slide-type first runners 21 are respectively first gates 23, and the first gates 23 open to the first molding surface 20 as shown in FIG. 4. The opening positions of the first gates 23 correspond to the formation positions of the recesses on the molding surface of the movable mold 5 described later.

  A concave second molding surface 24 for molding the support material 102 is provided on the lower half of the surface of the slide mold 6 on the movable mold 5 side. A slide mold side second runner 25 communicating with the fixed mold side second runner 14 is provided in the lower half portion of the slide mold 6. The downstream end of the slide-type side second runner 25 is a second gate 26, and the second gate 26 is open to the second molding surface 24.

  The demolding device 15 is provided at the upper end and the lower end of the second molding surface 24 in the slide mold 6. Each demolding device 15 includes an extruding pin 27 and an extruding cylinder 28 that is connected to the base end of the extruding pin 27 and moves the extruding pin 27 forward and backward. The extrusion cylinder 28 protrudes from the slide mold 6 toward the fixed mold 4, and this protruding portion is accommodated in the accommodating recess 16 of the fixed mold 4. The push pin 27 has a push-back cylinder 28 in a retracted state in which the pin tip surface is positioned on the same plane as the second molding surface 24, and as shown in FIG. It is switched to one of the advanced state protruding from the surface 24.

  As shown in FIG. 1, the movable mold 5 is attached to a movable plate 30 that moves forward and backward with respect to the fixed plate 10 on the bed of the injection molding machine 3. A concave portion 31 for molding the surface side of the operation button 101 is formed on the surface of the movable die 5 on the slide die 6 side, and a molding surface 32 is constituted by the concave portion 31 and a flat surface around the concave portion 31. ing. The recesses 31 are arranged corresponding to the intervals between the operation buttons 101. Since the concave portion 31 is formed on the molding surface 32 of the movable mold 5 in this way, the operation button 101 molded on the molding surface 32 is held on the molding surface 32.

  Then, as shown in FIG. 5A, the movable mold 5 is movable with the fixed mold 4 in a state where the slide mold 6 is moved downward until the first molding surface 20 of the slide mold 6 faces the molding surface 32 of the movable mold 5. When the mold 5 is closed, the fixed mold 4 and the slide mold 6 are in close contact with each other, and the slide mold 6 and the movable mold 5 are in close contact with each other. As a result, a first cavity 35 (shown in phantom lines in FIG. 5A) is formed between the first molding surface 20 of the slide mold 6 and the molding surface 32 of the movable mold 5. The 1 runner 13 and the slide-type first runner 21 communicate with each other.

  On the other hand, as shown in FIG. 6 (b), the movable die 6 is movable with the fixed die 4 while the slide die 6 is moved upward until the second molding surface 24 of the slide die 6 faces the molding surface 32 of the movable die 6. When the mold 5 is closed, a second cavity 43 (shown in phantom lines in FIG. 6B) is formed between the second molding surface 24 of the slide mold 6 and the molding surface 32 of the movable mold 5. The fixed mold side second runner 14 and the slide mold side second runner 25 communicate with each other. When the fixed mold 4 and the movable mold 5 are opened, a gap is formed between the slide mold 6 and the fixed mold 4 by the operation of the advance / retreat cylinder, as shown in FIG. This gap is for preventing the pushing cylinder 28 from hitting the fixed mold 4 when the slide mold 6 is moved.

  Further, the movable mold 5 is provided with a pattern material arrangement device 36 as a pattern material arrangement means for arranging the pattern material 103 in the first cavity 35, and this pattern material arrangement device 36 also constitutes the manufacturing apparatus 1. Is. The pattern material arranging device 36 includes an upper roller 37 and a lower roller 38. The upper roller 37 and the lower roller 38 are rotationally driven by, for example, a motor controlled by a control device (not shown). The rotation is stopped at an arbitrary timing.

  The upper roller 37 is disposed at the upper end portion of the movable die 5 and attached to the upper end portion so that the rotation axis is substantially horizontal and extends along the direction of the dividing surface of the fixed die 4 and the movable die 5. The lower roller 38 is disposed at the lower end portion of the movable mold 5 so that the rotation axis thereof is substantially parallel to the rotation axis of the upper roller 37, and is attached to the lower end portion.

  A long film member 39 provided with a pattern material 103 is wound around the upper roller 37, and the film member 39 is wound around the lower roller 38. The film member 39 is disposed so as to be in close contact with the surface of the movable mold 5 on the slide mold 6 side, and the fixed mold 4 and the movable mold 5 are closed between the movable mold 5 and the slide mold 6. Located in. The film member 39 is a constituent member of the pattern material arranging device 36.

  The film member 39 is made of a heat-resistant material that does not deform even when in contact with the molten first molding material. A plurality of the pattern materials 103 are provided on the surface of the film member 39 on the movable mold 5 side at intervals in the longitudinal direction of the film member 39, and the surface of the pattern material 103 faces the movable mold 5 side. .

  The pattern material 103 is peeled off from the film member 39 by the heat generated when the first molding material in the molten state comes into contact and transferred to the first molding material. Conventionally, a pattern is applied to a resin molded product. Is used. As shown in FIG. 2, the pattern material 103 is divided into a plurality of parts corresponding to the number of the operation buttons 101, and these are attached to the operation buttons 101 in one molding cycle. The film members 39 on the right side of the pattern material 103 are each formed with a hole 40 that penetrates the film member 39 and communicates with the first gate 23 in a mold-closed state. These hole portions 40 are for allowing the molten first molding material to flow into the first cavity 35 from the first gate 23, and constitute the inflow hole of the present invention.

  In the film member 39, the longitudinal direction of the film member 39 is between the pattern material 103 attached to the operation button 101 in the first molding cycle and the pattern material 103 attached to the operation button 101 in the next molding cycle. A long, substantially rectangular opening 42 is formed. That is, the film member 39 is alternately provided with the pattern material 103 and the opening 42 attached to the operation button 101 in one molding cycle in the longitudinal direction of the film member 39. The size of the opening 42 is formed larger than the second molding surface 24 of the slide mold 6 and the molding surface 32 of the movable mold 5 in plan view. Therefore, since the opening 42 is larger than the second cavity 43 formed by closing the fixed mold 4 and the movable mold 5, the pattern member arranging device 36 moves the film member 39 in the longitudinal direction. The periphery of the opening 42 can be positioned outside the second cavity 43.

  Next, the case where the operation component 100 is manufactured using the manufacturing apparatus 1 configured as described above will be described. First, as shown in FIG. 1, the fixed mold 4 and the movable mold 5 are opened, the film member 39 is moved by the pattern material arranging device 36, and the front side of the pattern material 103 as shown in FIG. Is arranged at a predetermined position facing the molding surface 32 of the movable mold 5. Further, the slide mold 6 is lowered by the slide cylinder so that the first molding surface 20 of the slide mold 6 faces the molding surface 32 of the movable mold 5. Then, as shown in FIG. 5A, the fixed mold 4 and the movable mold 5 are closed. As a result, the first cavity 35 is formed between the first molding surface 20 and the molding surface 32 of the movable mold 5, and the pattern material 103 is disposed on the slide mold 6 side of the first cavity 35. .

  Thereafter, when the molten first molding material is injected from the injection nozzle 7a of the first injection unit 7, the first molding material passes through the first sprue 11 and the fixed mold side first runner 13, and the slide mold side first. It flows into the runner 21. The first molding material flowing into the slide mold side first runner 21 is supplied from each first gate 23 through the hole 40 of the film member 39 to the first cavity 35 and filled therein. As described above, the first molding material passes through the film member 39 and flows into the first cavity 35. The shape of the hole 40 can be set arbitrarily.

  When the first molding material filled in the first cavity 35 comes into contact with the pattern material 103 on the film member 39, the pattern material 103 is transferred to the first molding material, and when the first molding material is solidified, the first molding material and The pattern material 103 is integrated, and the operation button 101 with the pattern material is obtained.

  After the first molding material is solidified, as shown in FIG. 5B, the fixed mold 4 and the movable mold 5 are opened, and although not shown, the first sprue 11, the fixed mold side first runner 13 and the slide are opened. The first molding material solidified by the mold-side first runner 21 is removed from the gap between the slide mold 6 and the fixed mold 4. In a state where the fixed mold 4 and the movable mold 5 are opened, the operation button 101 is held on the molding surface 32 of the movable mold 5.

  Further, with the fixed mold 4 and the movable mold 5 opened, as shown in FIGS. 3 and 6A, the upper roller 37 and the lower roller 38 of the pattern material arranging device 36 are rotated, The film member 39 is moved downward until the peripheral edge of the opening 42 is positioned outside the molding surface 32 of the movable die 5. At this time, the slide mold 6 is raised by the slide cylinder so that the second molding surface 24 of the slide mold 6 faces the molding surface 32 of the movable mold 5. The step of moving the film member 39 and the step of moving the slide side 6 by opening the mold are advanced in parallel. Note that the step of moving the film member 39 and the step of moving the slide die 6 by opening the mold do not proceed in parallel, and after one step is completed, the other step is started. Good.

  Then, as shown in FIG. 6B, the solid mold 4 and the movable mold 5 are closed. As a result, a second cavity 43 is formed between the second molding surface 24 of the slide mold 6 and the molding surface 32 of the movable mold 6. The back side of the pattern material 103 faces the second cavity 43.

  Thereafter, when the molten second molding material is injected from the injection nozzle 8a of the second injection section 8, the second molding material passes through the second sprue 12 and the fixed mold side second runner 14, and the second slid side. It flows into the runner 25. The second molding material flowing into the slide mold side second runner 25 is supplied from the second gate 26 through the opening 42 of the film member 39 to the second cavity 43 and filled. When the second molding material is supplied to the second cavity 43, the peripheral edge of the opening 42 of the film member 39 is not located in the second cavity 43, so the film member 39 obstructs the flow of the second molding material. The second molding material is supplied smoothly and the second molding material is also prevented from being integrated with the film member 39.

  When the second molding material filled in the second cavity 43 is solidified, it is integrated with the pattern material 103 side of the operation button 101. When the second molding material is solidified, the fixed mold 4 and the movable mold 5 are opened as shown in FIG. In this mold open state, the support material 102 is held on the second molding surface 24. As shown in FIG. 7B, when the push pin 27 is advanced by the push cylinder 28 of the demolding device 15, the operation is performed. The operation component 100 provided with the pattern material 103 between the button 101 and the support material 102 is removed.

  When one molding cycle is completed in this way, the pattern material placement device 36 is operated to move the film member 39 downward in preparation for the next molding cycle, and the next pattern material 103 is moved to the first cavity 35. Deploy. The step of moving the film member 39 and the step of opening the mold and removing the operating component 100 are advanced in parallel. After the process is completed, the other process may be started.

  Therefore, according to this embodiment, the first cavity 35 is formed between the first molding surface 20 of the slide mold 6 and the molding surface 32 of the movable mold 5, and the pattern material 103 is disposed in the first cavity 35. Since the first molding material is supplied, the pattern material 103 can be attached to the operation button 101 simultaneously with the molding of the operation button 101 in the first cavity 35. Then, after the fixed mold 4 and the movable mold 5 are opened, the second molding material is formed in the second cavity 43 formed by moving the slide mold 6 while holding the operation button 101 on the movable mold 5 and closing the mold. Therefore, the support material 102 can be integrated with the operation button 101 simultaneously with the formation of the support material 102. Thereby, the manufacturing man-hour of the operation component 100 can be reduced, and cost reduction can be achieved.

  In addition, a plurality of pattern materials 103 are arranged in the longitudinal direction on the long film member 39, and the pattern members 103 are arranged in the second cavities 43 by moving the film members 39 in the longitudinal direction for each molding cycle. Therefore, the process of arranging the pattern material 103 in the first cavity 35 can proceed in parallel with the other processes of the molding cycle. As a result, it is possible to avoid an increase in the time required for one molding cycle.

  Further, since the hole 40 communicating with the first gate 23 is formed in the film member 39, the first molding material can be supplied to a desired position in the first cavity 35 through the hole 40, and the operation can be performed. Defects in the button 101 can be suppressed.

  Further, the film member 39 is provided with an opening 42 that is larger than the outer shape of the second molding surface 24 of the slide mold 6 and the outer shape of the molding surface 32 of the movable mold 5, and the second cavity 43 is formed when the second cavity 43 is formed. Since the periphery of the opening 42 is positioned outside the two cavities 43, the film member 39 does not get in the way when the second molding material is supplied to the second cavities 43, and the second molding material is the film member. Integration with 39 is avoided. Also by this, the defect of the operation component 100 can be suppressed.

  The pattern material 103 may be attached to the operation button 101 by a method other than transfer. In this case, for example, a weak portion is provided around the pattern material 103 in the film member 39. Then, after the pattern material 103 is integrated with the operation button 101, when the film member 39 is moved by the pattern material arranging device 36, the weakened portion is broken and the pattern material 103 is separated from the film member 39, thereby 103 can be attached to the operation button 101.

  Further, in this embodiment, the first molding material and the second molding material are transparent, but only the first molding material may be transparent. In addition, as the first molding material and the second molding material, various resin materials and rubber materials can be used depending on applications. Further, the first molding material and the second molding material may be the same.

  In this embodiment, the slide mold 6 is moved in the vertical direction by the moving mechanism. However, the present invention is not limited to this. For example, the slide mold 6 is moved in the left-right direction along the parting surfaces of the fixed mold 4 and the movable mold 5. You may make it make it. In this case, the slide mold 6 is formed long in the left-right direction, and the first molding surface 20 and the second molding surface 24 are provided side by side on the slide mold 6.

  As described above, the present invention can be applied to manufacture an operation part of a mobile phone.

It is a longitudinal cross-sectional view of the manufacturing apparatus which concerns on embodiment of this invention. It is the front view which looked at the movable mold from the fixed mold side. FIG. 3 is a view corresponding to FIG. 2 showing a state where the operation button is held on the molding surface and the periphery of the opening of the film member is positioned outside the molding surface. It is the front view which looked at the slide type from the movable type side. (A) is a view corresponding to FIG. 1 showing a state in which the first molding material is solidified in the first cavity, and (b) is a state in which the molding of the operation button is completed and the fixed mold and the movable mold are opened. FIG. (A) raises a slide type | mold, and is the FIG. 1 equivalent view which shows the state which positioned the opening part periphery of the film member on the outer side rather than the shaping | molding surface of a movable mold | type, (b) FIG. 2 is a view corresponding to FIG. 1 and showing a state in which a second molding material is solidified in a second cavity formed by closing the mold. (A) is the figure equivalent to FIG. 1 which shows the state which the 2nd molding material solidified and the fixed mold | type and the movable mold | die were opened, (b) shows the state which removed the operation component from the slide mold | type. FIG. 2 is a diagram corresponding to FIG. 1. FIG. 7 is a view corresponding to FIG. 4 of the slide type in the state of FIG. It is the front view which looked at the fixed mold from the movable mold side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 4 Fixed type | mold 5 Movable type | mold 6 Slide type | mold 7 1st injection | emission part 8 2nd injection | emission part 20 1st shaping | molding surface 24 2nd shaping | molding surface 35 1st cavity 36 Pattern material arrangement | positioning apparatus (pattern material arrangement | positioning means)
39 Film member 40 Inflow hole 42 Opening 43 Second cavity 100 Operation part 101 Operation button 102 Support material 103 Pattern material

Claims (5)

Manufacture a mobile phone operation component in which a pattern material facing the operation button is provided between an operation button made of a transparent first molding material and a support material made of a second molding material and supporting the operation button. A method,
Forming a first cavity between the first molding surface of the slide mold disposed between the fixed mold and the movable mold and the molding surface of the movable mold by closing the fixed mold and the movable mold; The pattern material is arranged on the slide mold side of the first cavity,
Then, after obtaining the operation button with the pattern material by supplying the first molding material in a molten state to the first cavity and solidifying it, the fixed mold and the movable mold are opened, and the operation is performed. Hold the button movable,
Next, the slide mold is moved until the second molding surface of the slide mold faces the operation button held by the movable mold to close the fixed mold and the movable mold, and the second molding of the slide mold is performed. Forming a second cavity between the surface and the molding surface of the movable mold,
Thereafter, the molten second molding material is supplied to the second cavity, and the second molding material is integrated with the pattern material side of the operation button and solidified to be interposed between the operation button and the support material. A method for manufacturing an operation component for a mobile phone, comprising: obtaining an operation component for a mobile phone provided with a pattern material. Manufacture a mobile phone operation component in which a pattern material facing the operation button is provided between an operation button made of a transparent first molding material and a support material made of a second molding material and supporting the operation button. Manufacturing equipment,
Fixed type,
A movable mold provided to be movable back and forth with respect to the fixed mold;
A slide mold disposed between the fixed mold and the movable mold and having a first molding surface and a second molding surface on the movable mold side;
The slide mold includes a position where the first molding surface faces the molding surface of the movable mold and forms a first cavity, and a position where the second molding surface faces the molding surface of the movable mold and forms a second cavity. Moving means for moving between,
Pattern material arrangement means for arranging the pattern material on the slide mold side of the first cavity;
A mobile phone comprising: a molding material supply means for melting the first molding material and supplying the first molding material to the first cavity and for melting the second molding material and supplying the second molding material to the second cavity. Manufacturing equipment for operation parts. In the manufacturing apparatus of the operation component for mobile phones according to claim 2,
The pattern material arranging means includes a long film member in which a plurality of pattern materials are arranged in a predetermined direction, and the film member is arranged between a movable type and a slide type, so An apparatus for manufacturing an operation part for a mobile phone, wherein the pattern member is sequentially arranged in the first cavity by moving the film member in the predetermined direction for each molding cycle. In the manufacturing apparatus of the operation component for mobile telephones of Claim 3,
The molding material supply means is configured to supply the first molding material from the fixed mold side,
The film member is provided with an inlet for allowing the first molding material supplied from the molding material supply means to flow into the first cavity. In the manufacturing apparatus of the operation component for mobile telephones of Claim 3 or 4,
The molding material supply means is configured to supply the second molding material from the fixed mold side,
Between the pattern members arranged in a predetermined direction in the film member, an opening larger than the outer shape of the second molding surface of the slide mold and the outer shape of the movable molding surface is provided,
When the second cavity is formed between the second molding surface and the movable molding surface, the pattern material arranging means is configured to dispose the film member until the periphery of the opening is positioned outside the second cavity. An apparatus for manufacturing an operation part for a mobile phone, wherein the apparatus is configured to be moved.

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