KR101437344B1 - Mold for simultaneously injection-molding and decoration, method of manufacturing simultaneously injection-molded and decorated article, and appratus for simultaneously injection-molding and decoration - Google Patents

Abstract

[PROBLEMS] To improve the positioning accuracy (accuracy) of a sheet of a sheet decorating sheet.
[MEANS FOR SOLVING THE PROBLEMS] A mold (2) for simultaneous decorating molding is a mold for simultaneous decoration for molding, which is used for simultaneous decorating for forming an injection-molded article from a molten (melted) resin and fixing a sheet . The mold 2 for simultaneous decorating molding is provided with a second movable mold 15, a second fixed mold 9 and a plurality of clamps 33 (33a) . In the second movable die 15, a sheet-like sheet 41 is arranged. The second fixed die 9 is capable of relatively approaching and separating from the second movable die 15 and is provided with a first partial cavity 30 between itself and the second movable die 15 . The plurality of clamps 33 are members for pushing the sheet-like decorating sheet 41 to the second movable die 15 and are separated from each other so that the sheet-decorating sheet 41 is placed on the second movable die 15 At least one of them is moved to a clamp-releasing position for reducing the resistance to the sheet of the sheet.

Description

TECHNICAL FIELD The present invention relates to a mold for simultaneous decorating molding, a method for manufacturing a simultaneous decorating molding, and a molding simultaneous decorating apparatus.

The present invention relates to a mold for simultaneous decorating molding and a method for manufacturing a simultaneous edible molded article using the same, and more particularly, to a method for forming an injection molded article from a molten resin and, at the same time, A mold for simultaneous decorating used to fix a decorating sheet, and a method for manufacturing a simultaneous decorating article using the same.

BACKGROUND ART Conventionally, a molding technique for forming an injection-molded article from a molten resin and fixing an decorating sheet to the surface of an injection-molded article is known. In this technique, a pair of dies are prepared, the decorative sheet is arranged on one side or both sides of the pair of dies, and the molten resin is injected into the space between the dies so that injection molding is performed. In this case, simultaneously with the injection molding, the transfer layer is transferred onto the surface of the molded article.

In the two-color molding, two kinds of molten melted resins having different colors or different materials are injection-molded successively, and two-color molded articles obtained by joining two different kinds of molten resin portions are manufactured. Furthermore, there is also known a method of simultaneously applying a two-color molding method in which a primary molded product to which a transfer layer is transferred is formed by simultaneous molding molding, and then a secondary molding resin is injection-molded on the moldable surface of the primary molded product , Patent Document 1).

Japanese Unexamined Patent Application Publication No. 2010-105211

In the two-color simultaneous painting method described in Patent Document 1, a simultaneous decorating apparatus having a first fixed type (fixed type), a second fixed type, and two movable types is used. The first fixed die is used for performing the primary forming, and the second fixed die is used for performing the secondary forming. The two movable molds change positions relative to the first fixed mold and the second fixed mold by rotation. In the apparatus described in Patent Document 1, a role-type decorating sheet is supplied to a stationary type.

On the other hand, for example, a simultaneous decorating technique in which a decorating sheet is arranged on a movable side is also known. In this case, if the decorating sheet is long, the apparatus on the movable side becomes large due to the supply roll and the winding roll. Therefore, it is preferable that the decorative sheet is not a long sheet but a single sheet. However, in the case of a sheet-like decorating sheet, it is difficult to accurately position the sheet.

SUMMARY OF THE INVENTION An object of the present invention is to improve positioning accuracy (accuracy) of a sheet on a sheet.

Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as needed.

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The mold for simultaneous shaping molding according to one aspect of the present invention is a mold for simultaneous shaping molding used for simultaneous shaping in which an injection molded article is formed from a molten resin and a sheet is stuck to the surface of the injection molded article, to be. The mold for simultaneous molding with molding includes a first stationary mold, a second stationary mold, a movable mold, a robot, and a plurality of clamp members. The second stationary mold is provided in parallel with the first stationary mold. The movable mold is movable by rotation between a position opposed to the first stationary mold and a position opposed to the second stationary mold, and furthermore, the movable mold can be moved toward and away from the first stationary mold and the second stationary mold. The robot moves the sheet-like decorating sheet through a plurality of clamp members to place the movable sheet in the movable mold. The plurality of clamp members are members for pushing the sheet-like decorating sheet with the movable mold and are separated from each other. When the sheet-decorating sheet is disposed on the movable mold, at least one is moved to the clamp-opening position for reducing the resistance to the sheet- do. Between the first stationary mold and the movable mold, a first molding space for molding a primary molded product using a sheet-like decorating sheet is formed. Between the second stationary mold and the movable mold, a second molding space for molding the secondary molded product is formed by molding the molten resin further different from the primary molded product.
Incidentally, here, the sheet for sheet decorating includes a transfer sheet in which a base sheet is peeled and not left on the product, and a laminate sheet in which the base sheet remains on the product.

In this mold for simultaneous molding with molding, since a plurality of clamp members are separated from each other, and at least one moves to a clamp releasing position for reducing the resistance to the sheet to be decorated when the sheet is placed on the movable mold, When the robot approached to arrange the sheet mat on the movable mold, the contact between the sheet web and the clamp member can be reduced or eliminated by appropriately adjusting the open position of the clamp member. That is, it is possible to reduce the resistance from the clamping member to the single sheet of decorated sheet at the time of carrying. As a result, the sheet-like decorating sheet is hardly deformed or damaged.

At least one of the plurality of clamp members may be movable between a clamp position close to the movable mold and a clamp release position spaced away from the clamping position obliquely outwardly with respect to the movable mold.

At least one pair of clamp members is movable between a clamp position close to the movable mold and a clamp release position spaced apart from the clamp position in a direction perpendicular to the movable mold, The distance may be different.
The mold for simultaneous molding with shaping further includes a suction device. The second stationary mold has a flat surface and a partial cavity constituting the second molding space, and the second stationary mold has a suction hole that opens on a flat surface, and the suction device is a secondary The portion around the secondary molded article of the sheet-like decorating sheet may be sucked when the movable mold is separated from the second stationary mold after the molded article is molded.
The plurality of clamp members are a plurality of members extending long in correspondence to the sides of the sheet of decorative sheet. When the sheet holding sheet is placed on the movable mold, the sheet is folded in the space surrounded by the plurality of clamp members It is safe to move the inside.

A method of manufacturing a molded decorative article according to another aspect of the present invention is a mold for simultaneous decorative decoration used for simultaneous decorative molding in which an injection molded article is formed from a molten resin and a sheet is stuck to the surface of an injection molded article, A second fixed mold provided in parallel with the first fixed mold, and a position opposite to the first fixed mold and a position opposed to the second fixed mold, the first fixed mold, the first fixed mold, A movable mold capable of approaching and separating to and from a stationary mold and a second stationary mold, a member for pushing a sheet-like decorating sheet with a movable mold, and a plurality of clamp members separated from each other, And has the following steps.

At least one of the plurality of clamp members is moved to the clamp releasing position for reducing the resistance to the sheet.

? The sheet-decorating sheet is passed through a plurality of clamp members and arranged in the movable mold.

◎ A plurality of clamps push the sheet of decorative sheet to the movable mold.

? The movable mold is moved toward the first fixed mold to form a first molding space for molding the primary molded product.

A primary molded product is molded using a sheet-like decorating sheet by injection molding a molten resin into the first molding space.

◎ The movable mold is opposed to the second fixed mold.

By securing the movable mold to the second fixed mold, a second molding space for molding the secondary molded product is ensured.

The secondary molding is molded by injection molding a molten resin into the second molding space.

In the method of manufacturing a molded-in-mold edible product, since the plurality of clamp members are separated from each other, for example, when the robot approached to arrange the sheet-like decorating sheet in the movable mold, by appropriately adjusting the position of the clamp member , The contact between the sheet-feeding type sheet and the clamp member can be reduced or eliminated. That is, it is possible to reduce the resistance from the clamping member to the single sheet of decorated sheet at the time of carrying. As a result, the sheet-like decorating sheet is hardly deformed or damaged.

The method for manufacturing a molded decorating article may further include the step of arranging the decorating sheet on the first stationary metal mold. In this case, the decorating sheet is fixed to both sides of the primary molded product.
The method for manufacturing a molded decorative article is characterized in that when the movable mold is separated from the second fixed mold after the secondary molded product is molded and the movable mold is separated from the second fixed mold, As shown in Fig.
A method of manufacturing a molded decorative article is characterized in that the plurality of clamp members are a plurality of members extending long in correspondence with the sides of the sheet, and the sheet is provided with a plurality of clamp members It can be turned on.

The molding simultaneous decorating apparatus according to another aspect of the present invention comprises the above-described mold for simultaneous decorating. The mold for simultaneous decorating molding further includes a robot positioning member for positioning the robot in the mold for simultaneous decoration when the robot conveys the sheet to the mold for simultaneous decorating.

In this apparatus, the robot is positioned with respect to a mold for simultaneous decorating molding mechanically by a robot positioning member of a mold for simultaneous decorating molding. Therefore, it is not necessary to install a camera for position adjustment by the robot itself to the robot.

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According to the mold for simultaneous decorating molding and the method for manufacturing the simultaneous edible molding according to the present invention, the degree of positioning (accuracy) of the sheet per one decorative sheet is improved with respect to the mold.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view of a molded simultaneous decorating apparatus according to an embodiment of the present invention. Fig.
Fig. 2 is a block diagram showing a control configuration of a molding simultaneous-gravity controlling apparatus. Fig.
3 is a flowchart showing a control operation of the in-mold decorating apparatus.
4 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
5 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
6 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
7 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
8 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
9 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
10 is a schematic cross-sectional view showing a state of a molding decorating apparatus;
11 is a plan view showing a state in which the clamp clamps the sheet-like decorating sheet.
12 is a plan view with the clamp in the open position;
13 is a schematic cross-sectional view showing the positional relationship between a sheet of a decorated sheet and a pair of clamps during a carry-in;
14 is a schematic cross-sectional view showing the positional relationship between a sheet of a decorated sheet and a pair of clamps during a carry-in;
15 is a schematic cross-sectional view showing the positional relationship between a sheet of a decorated sheet and a pair of clamps during a carry-in;
FIG. 16 is a flowchart showing a control operation of the in-mold decorating apparatus of the second embodiment; FIG.
17 is a schematic cross-sectional view showing a state of a simultaneous shaping apparatus according to the second embodiment.
18 is a schematic cross-sectional view showing a state of a simultaneous decorating apparatus according to the second embodiment.
Fig. 19 is a schematic sectional view showing a state of a simultaneous decorating apparatus according to a second embodiment; Fig.

(1) Configuration

1 and 2, the in-mold decorating apparatus 1 of the present embodiment will be described. 1 is a schematic cross-sectional view of a molded simultaneous decorating apparatus according to an embodiment of the present invention. Fig. 2 is a block diagram showing a control configuration of the simultaneous decorating apparatus. The molding simultaneous decorating apparatus 1 mainly includes a mold 2 for simultaneous molding of molding and a mold 2 for fixing the mold 1 to the fixed mold 11, the movable mold 17, the first resin injection apparatus 67, An injection molding machine having a resin injection device 69, a robot 31, and a sheet-decorating sheet preparation apparatus (not shown).

The mold for simultaneous molding 2 for forming is mainly composed of a stationary mold 3 and a movable mold 5. The stationary mold 3 mainly consists of a first stationary die 7 and a second stationary die 9. In the first fixed die 7, the first surface 21 is a substantially flat surface, and the second surface on the opposite side is fixed to the fixed plate 11. The second fixed mold 9 is arranged side by side on the first fixed mold 7 and the first surface 25 is flat and the second partial cavity 27 is formed on the first surface 25. In the second fixed die 9, a second surface opposite to the first surface 25 is fixed to the fixed plate 11. [

The movable mold 5 mainly consists of a first movable mold 13 and a second movable mold 15. Hereinafter, the first movable die 13 will be described, but the structure of the second movable die 15 is also the same. The first movable die 13 has a flat first surface 29 and a first partial cavity 30 formed on the first surface 29. The first movable die 13 is provided with a first suction hole 35 which is located on the outer side of the first partial cavity 30 and opens to the first surface 29. Furthermore, the first movable die 13 is provided with a second suction hole 37 which is opened at the bottom surface of the first partial cavity 30. As shown in Fig. In addition, in the first movable die 13, the second surface opposite to the first surface 29 is fixed to the movable die 17.

The first movable die 13 is provided with clamps 33 (33a and 33b) for holding a sheet-decorating sheet (sheetfilm) around the first partial cavity 30 , Only a pair of first clamps 33a are shown). The structure and operation of the clamp member will be described later in detail.

The first movable die 13 is further provided with a positioning pin 39. The positioning pin 39 extends from the first surface 29 and extends toward the stationary mold 3 side. The positioning pin 39 is a member for positioning the robot to be described later. Although one positioning pin is shown in the drawing, a plurality of positioning pins may be provided.

The movable mold 5 can be thrust moved in the direction away from the stationary mold 3 from the state of Fig. 1 and further rotated about the rotational axis O-O at a position away from the stationary mold 3 have. The first state (Fig. 1) in which the first fixed die 7 and the first movable die 13 are opposed to each other and the second fixed die 9 and the second movable die 15 are opposed to each other, The movable mold 7 and the second movable mold 15 can be shifted between the second fixed mold 9 and the second movable mold 13 in the second state . As a mechanism for rotationally driving the movable mold 5, a mold rotating device 63 is provided as shown in Fig. The mold rotating device 63 includes a motor and a rotation transmitting device, so that the movable mold 17 can be rotated. As a mechanism for thrust-driving the movable mold 5, a mold forward / backward device 65 is provided as shown in Fig. The mold forward / backward device 65 includes a piston cylinder and a thrust force transmitting device, and the movable mold 17 is thrustable.

Further, as shown in Fig. 2, the movable mold 5 is provided with a flat-surface suction apparatus 71 and a product suction apparatus 73. The flat- The flat surface suction device 71 is connected to the first suction hole 35. [ The product suction unit 73 is connected to the second suction hole 37.

The first fixed die 7 and the first movable die 13 or the second movable die 15 constitute the primary formed portion 18 and the second fixed die 9 and The secondary molding section 19 is constituted by the first movable die 13 or the second movable die 15.

The control unit 61 is a computer including a CPU, a RAM, and a ROM, and executes control programs by executing various programs. The control unit 61 is connected to the mold rotating device 63, the mold forward / backward device 65, the first resin injection device 67, the second resin injection device 69, the flat surface suction device 71, 73, the clamp driving device 75, and the long-retractable seat driving device 77 can be controlled. In addition, a detection signal is input from the various sensors 79 to the control unit 61. [ Furthermore, the control section 61 may be capable of communicating with another apparatus (for example, a control section of the conveying robot or the sheet feeding apparatus).

In correspondence with the first fixed die 7, a first resin injection device 67 is provided. The first resin injection device (67) is capable of injecting molten resin into the first partial cavity (30).

In addition, a second resin injection apparatus 69 is provided corresponding to the second fixed die 9. The second resin injection device (69) is capable of injecting molten resin into the second partial cavity (27). In addition, in order to simplify the drawing, the resin injection path from the injection apparatus to the mold is omitted.

In addition, examples of the molten resin include polystyrene, acrylonitrile-styrene copolymer, acrylonitrile butadiene styrene copolymer, methyl methacrylate, but are not limited to, noryl, polycarbonate, polyethylene, polypropylene, polyester, polyethylene terephthalate, and polybutylene terephthalate.

(2) Molding operation

The molding operation will be described with reference to Figs. 3 to 11. Fig. Fig. 3 is a flow chart showing a control operation of the simultaneous decorating apparatus. Figs. 4 to 11 are schematic cross-sectional views showing one state of the molding decorating apparatus. Fig.

In Fig. 4, the movable mold 5 is separated from the stationary mold 3, and a space is secured between them. In Fig. 4, the primary molded product 47 (described later) is already disposed in the first partial cavity 30 of the first movable die 13.

In step S1, the control unit 61 waits for the robot 31 to enter between the second fixed die 9 and the second movable die 15. The entrance of the robot 31 may be detected by a detection signal from various sensors 79 and may be detected by a signal from the robot 31 (hereinafter, the same is applied to the detection of the position of the robot). . 4, the robot 31 has a support portion 40 and a suction portion 43 provided at the tip end of the support portion 40. As shown in Fig. The adsorption portion 43 faces the second movable die 15 side and is rectangular. The adsorption portion 43 adsorbs the sheet-like decorating sheet 41. The quadrilateral portion 41b of the sheet receiving sheet 41 is located further outward than the outer edge of the end surface of the suction portion 43. [ A positioning hole 42 into which the positioning pin 39 can be inserted is formed in the support portion 40.

The sheet receiving sheet 41 is composed of a base sheet and a decorative layer provided on the base sheet. The decorative layer has, for example, a surface protective layer, an itchy layer (a layer having a textured or patterned texture), and an adhesive layer. Further, the sheet-like decorating sheet 41 may have a release layer between the base sheet and the decorative layer. As the kinds of the sheet-like sheet 41, there are, for example, a transfer sheet in which the base sheet is finally peeled from the product and a laminate sheet in which the base sheet remains on the product. The transfer sheet has a thickness of the base sheet of 38 to 50 mu m, and the thickness of the base sheet of the laminate sheet is 100 to 400 mu m.

The control section 61 transmits a control signal to the clamp drive device 75 so that the clamp 33 (33a, 33b) is moved to the open Position. As shown in Fig. 4, the pair of first clamps 33a move obliquely outwardly and fall off the first surface 29. As shown in Fig.

In step S3, the control section 61 transmits a control signal to the long-trim type sheet drive device 77, and the long-trim type sheet drive device 77 is subjected to the following molding operation To move.

The layer structure of the long-front decorating sheet 23 may be the same as or different from the layer constitution of the sheet mat 41.

5, the control unit 61 moves the robot 31 to the second movable die 15 side. As a result, the sheet-like decorating sheet 41 is pressed against the first surface 29, And waits for the robot 31 to stop in a state in which it abuts against the robot 31 in a state in which it abuts against the robot 31 in a state of abutting. Since the positioning of the robot 31 and the second movable die 15 is performed mechanically by the positioning pin 39 and the positioning hole 42 in the molding simultaneous decorating apparatus 1, (Accuracy) of the sheet 41 with respect to the second movable die 15 is improved, and further, the degree of transfer (accuracy) is improved in the subsequent simultaneous decorative molding.

5, the control unit 61 sends a control signal to the flat-surface suction unit 71 to cause the flat-surface suction unit 71 to move the oblique portion 41 of the sheet- (41b) on the first surface (29). Since the first suction holes 35 are formed on the flat first surface 29 in this way, the sheet-fed decorating sheet 41 to be fed can be held without positional deviation.

In step S6, the control section 61 transmits a control signal to the clamp driving device 75, and the clamp 33 (33a, 33b) is brought into close contact with the first surface 29 to the clamp driving device 75 Place it in the clamp position. As shown in Fig. 5, the pair of first clamps 33a move obliquely inward and come into contact with the first surface 29, as shown in Fig. As a result, the clamp 33 (33a, 33b) firmly presses the obverse of the sheet of decorative sheet 41 onto the first surface 29. [ Thus, after the sheet-like decorating sheet 41 is held on the flat first surface 29, it is mechanically fixed to the sheet-like sheet 41 by the clamp 33.

6, the central portion 41a of the sheet-like decorating sheet 41 is divided into a first portion 41a, a second portion 41b, and a third portion 41b. The control portion 61 transmits a control signal to the product suction device 73. In Step S7, It is in a state of being in close contact with the cavity 30, that is, the shape of the product.

In step S8, as shown in Fig. 6, the controller 61 moves the robot 31 away from the second movable mold 15 and further moves from the space between the stationary mold 3 and the movable mold 5 Waiting to be retired.

In step S9, the control section 61 transmits a control signal to the mold rotating device 63 to cause the mold rotating device 63 to rotate the movable mold 5 by 180 degrees. 7, the second movable die 15 is opposed to the first fixed die 7, and the first movable die 13 is opposed to the second fixed die 9, as shown in Fig.

In step S10, the control section 61 transmits a control signal to the mold forward / backward device 65 to cause the movable mold 5 to move toward the stationary mold 3 to the mold forward / backward device 65. [ As a result, as shown in Fig. 8, the stationary mold 3 and the movable mold 5 come into close contact with each other.

In step S11, the control section 61 transmits a control signal to the first resin injection device 67 to inject the primary molding resin into the first partial cavity 30 into the first resin injection device 67 do. The resin for primary molding flows between the sheet for decorative sheet 41 and the sheet for sheet 23 and becomes the first resin part 45 after cooling. As a result, the primary molded product (47) can be obtained in the primary molded portion (18).

As described above, in this apparatus, first, the flat-surface suction apparatus 71 sucks the sheet-like sheet 41 on the flat first surface 29 of the second movable die 15. Next, the clamp 33 presses the sheet of decorative sheet 41 against the second movable die 15 firmly. Next, the product auxiliary suction device 73 sucks the mattress decorating sheet 41 into the first partial cavity 30. Finally, the first resin injection device 67 injects the molten resin into the first partial cavity 30. [ In the above steps, the sheet decorating sheet 41 is brought into close contact with the first partial cavity 30 of the second movable die 15, so that the sheet decorating sheet 41 is hardly displaced.

The control unit 61 transmits a control signal to the second resin injection apparatus 69 and causes the second resin injection apparatus 69 to inject the secondary molding resin into the second partial cavity 27. [ The secondary molding resin becomes the second resin part 51 adhered to the surface of the primary molded product 47 on the side of the long decorating sheet 23 after cooling. As a result, the secondary molded product (53) can be obtained in the secondary molded part (19). Incidentally, Fig. 1 shows the first production cycle of the molding decorating apparatus 1, and therefore, a secondary molded product is not manufactured.

In step S12, the control section 61 transmits a control signal to the mold forward / backward device 65 to cause the movable mold 5 to move away from the stationary mold 3 to the mold forward / reverse device 65 . As a result, a space is formed between the stationary mold 3 and the movable mold 5, as shown in Fig. The primary molded product 47 remains on the side of the movable mold 5 and the secondary molded product 53 remains on the side of the stationary mold 3. As a result,

In step S13, as shown in Fig. 10, the control unit 61 waits for the robot (not shown) to enter the space and to take out the secondary molded product 53. Fig.

When step S13 ends, the process returns to step S1.

(3) Structure and operation of the clamp

The structure and operation of the clamp 33 (33a, 33b) will be described in detail with reference to Figs. 11 to 15. Fig. 11 is a plan view of the state in which the clamp clamps the sheet-decorating sheet. 12 is a plan view of the clamp in the open position. Figs. 13 to 15 are schematic cross-sectional views showing the positional relationship between a sheet of a decorated sheet and a pair of clamps during a carry-in.

As shown in Fig. 11, the clamp 33 is composed of a pair of first clamps 33a and a pair of second clamps 33b. The pair of first clamps 33a firmly press both the left and right sides of the sheet-like decorating sheet 41 in the figure. Further, the pair of second clamps 33b press the upper and lower sides of the sheet of decorative sheet 41 firmly in the figure. More specifically, each of the clamps 33a and 33b includes a first portion 33A abutting on each side of the sheet-like decorating sheet 41 and a first portion 33A abutting on the first side of the sheet- And a second portion 33B which comes into contact with the surface 29. Since the clamps 33a and 33b press the second movable die 15 to the outer edge of each side of the sheet of decorative sheet 41 as described above, (Accuracy) with respect to the post-molding decoration is improved, and further, the degree of transfer (accuracy) is improved in the post molding decorating.

As shown in Fig. 12, when the clamp 33 is moved to the open position, the pair of first clamps 33a are moved obliquely outward from the clamping position as described above. Therefore, when the sheet receiving sheet 41 is brought into the second movable die 15, the sheet does not come into contact with the pair of first clamps 33a. As described above, since the pair of first clamps 33a are in the open position diagonally outward from the clamping position toward the second movable die 15 at the time of bringing the sheet receiving sheet 41 into the sheet feeding position, 41 are difficult to contact the pair of first clamps 33a. As a result, the mattress decorating sheet 41 is hardly deformed or damaged. In this case, the above-mentioned effects can be obtained in any of the above-described sheet transfer sheet and sheet-shaped laminate sheet. However, in particular, since the sheet sheet is thin and has low rigidity, excellent effects can be obtained in the above case. That is, even if the sheet is thin, the alignment is accurate, and furthermore, the wrinkle is hard to occur.

Further, as shown in Fig. 12, the pair of second clamps 33b are moved perpendicular to the first surface 29 from the clamp position. However, as shown in Fig. 13, distances from the first surface 29 of the pair of second clamps 33b are different from each other. 13, when the robot 31 brings the sheet 41 to the sheet feeding position, the sheet receiving sheet 41 first comes into contact with one of the second clamps 33b, 15, the sheet-like decorating sheet 41 comes into contact with the second clamp 33b, and finally the sheet-decorating sheet 41 comes into contact with the first surface 29, as shown in Fig. . As described above, the number of the clamp members in which the sheet-like decorating sheet 41 contacts at one time is reduced. That is, since the resistance acting on the single sheet edging sheet 41 at a time is reduced, the sheet-like decorating sheet 41 is hardly deformed or damaged.

The first clamp 33a is fixed to a swingable arm, for example, and the arm is mounted on a clamp drive device 75 (for example, a hydraulic cylinder). The second clamp 33b is fixed to, for example, a rod (not shown), and the rod is mounted on the clamp drive device 75 (for example, a hydraulic cylinder). In addition, the clamp may not be installed in the mold but may be carried into the mold from the outside by the robot arm.

(4) Effect of mold for simultaneous decorative molding

A molding mold (for example, molding mold (2) for simultaneous decorating molding) is a molding mold for simultaneously molding an injection molded article from a molten resin and fixing the sheet to the surface of the injection molded article It is an edible device. The forming simultaneous decorating apparatus includes a first mold (for example, a second movable mold 15), a second mold (for example, a first movable mold 13), and four clamp members A pair of first clamps 33a, and a pair of second clamps 33b). In the first mold, a sheet-like decorating sheet (for example, sheet-like sheet 41) is disposed. The second mold can relatively approach and relate to the first mold and can define a molding space (for example, the first partial cavity 30) between the first mold and the first mold. have . The four clamp members are members for pushing the four sides of the sheet-like decorating sheet to the first mold, respectively, and are separated from each other.

In this molding simultaneous decorating apparatus, since the four clamp members are separated from each other, for example, when the robot approached to arrange the sheet-like decorating sheet in the first mold, by appropriately adjusting the opening position of the clamp member, Contact between the sheet member and the clamp member can be reduced or eliminated. That is, it is possible to reduce the resistance from the clamping member to the single sheet of decorated sheet at the time of carrying. As a result, the sheet-like decorating sheet is hardly deformed or damaged.

According to this molded simultaneous decorating apparatus 1, for example, a lid of a case of a cellular phone in which a three-dimensional pattern is provided on the front and back surfaces by edging and further a rib for fitting on the back is provided . The front and back sides are obtained by using a transparent material for the first resin part 45 and further decorating the first resin part 45 by the sheet decorating sheet 41 and the long decorating sheet 23 have. The ribs are formed by the second resin portion 51.

(5) Another embodiment

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention. In particular, a plurality of embodiments and variations described in this specification may be arbitrarily combined as needed.

The type and shape of the mold are not particularly limited.

The kind, composition and shape of the molded article are not particularly limited.

The molding simultaneous decorating apparatus does not have to be a two-material molding machine. 2 Reforming Contribution and structure are not limited to the above embodiments. For example, the positional change of the pair of movable dies is performed by rotation, but it may be performed by sliding.

The combination of types of clamps is not limited to the above embodiment.

The decorating sheet supplied to the first stationary die may be sheet-like.

In the above embodiment, the second partial cavity is formed by the second fixed concave portion, but it may be formed by the convex portion protruding from the second fixed type flat surface depending on the shape of the edible molded article.

In the above embodiment, the sheet-like decorating sheet was first adsorbed at the position of the flat surface of the mold, then pressed firmly to the mold by the clamp, and finally adsorbed at the position of the cavity. As another embodiment, it is also possible to omit the pressing by the clamp. In that case, the sheet is first adsorbed at the position of the flat surface of the mold, and then adsorbed at the position of the cavity. Also in this case, since the adsorption is performed on the flat surface and the adsorption is carried out at the position of the cavity, the degree of contact (accuracy) of the sheet of the sheet-like decorating sheet with the cavity of the mold is high.

(6) Second Embodiment

With reference to Figs. 16 to 19, the molding simultaneous decorating apparatus and the molding operation of the second embodiment will be described. 16 is a flowchart showing the control operation of the in-mold decorating apparatus of the second embodiment. 17 to 19 are schematic cross-sectional views showing one state of the molding decorating apparatus.

In this embodiment, the structure and the molding operation of the molding decorating apparatus are the same as those of the above embodiment. Therefore, the following description will focus on the other parts, and a description of the common parts will be appropriately omitted.

As shown in Fig. 17, the second fixed die 9 has a suction hole 81 formed on the outer side of the second partial cavity 27 and opening to the first surface 25 thereof. In addition, it is preferable that the suction hole 81 is close to the second partial cavity 27.

In the movable mold 5, a flat surface suction device 83 is further provided. The flat-surface-side suction device 83 is connected to the suction hole 81.

Steps S1 to S11 of the molding operation shown in Fig. 16 are similar to those of the above-described embodiment. As a result, the secondary molded product (53) can be obtained in the secondary molded part (19).

Hereinafter, an operation different from the above embodiment will be described.

In the flowchart shown in Fig. 16, step S14 is inserted between step S11 and step S12 as a point different from the flowchart of Fig. 3, and step S15 is inserted between step S12 and step S13.

In step S14, the control section 61 transmits a control signal to the flat surface suction device 83 to cause the flat surface suction device 83 to move the oblique part 41b of the sheet 26 to the first surface 25). Since the suction holes 81 are formed on the flat first surface 25 in this way, the sheet-like decorating sheet 41 is held by the second stationary die 9.

In step S12, the control section 61 transmits a control signal to the mold forward / backward device 65 to cause the movable mold 5 to move away from the stationary mold 3 to the mold forward / reverse device 65 . As a result, a space is formed between the stationary mold 3 and the movable mold 5, as shown in Fig. The primary molded product 47 remains on the side of the movable mold 5 and the secondary molded product 53 remains on the side of the stationary mold 3. As a result,

Since the oblique portion 41b of the sheet-like decorating sheet 41 is attracted to the second stationary mold 9 when the mold is opened, the product is released from the movable mold 5 A problem arises that a part of the sheet 46 is peeled off from the secondary molded article 53 at the time of taking out the contents from the frame only after the processing is finished or processed. Therefore, the secondary molded product 53 is hardly peeled off, and a problem caused by the peeling piece is hardly caused.

In step S15, the control section 61 transmits a control signal to the flat surface suction device 83 to cause the flat surface suction device 83 to connect the oblique part 41b of the sheet 26 to the first surface 25).

In step S13, the control unit 61 waits for the robot (not shown) to enter the space and take out the secondary molded product 53, as shown in Fig.

When step S13 ends, the process returns to step S1.

The present invention can be broadly applied to a simultaneous decorating apparatus and a method for manufacturing a simultaneous decorating edible article used for simultaneous decorating in which an injection molded article is formed from a molten resin and the sheet is fixed to the surface of an injection molded article.

1: Molding Simultaneous Edging Device
2: Mold for Simultaneous Edging
3: Fixed type
5: movable type
7: first fixed type
9: second fixed type
11: Fixed bar
13: First movable type
15: Second movable type
17:
18: Primary forming part
19: Secondary molding part
21: First Face
23: Longitudinal sheet
25: first side
27: second partial cavity
29: First Face
30: first partial cavity
31: Robot
33: Clamp
33a: first clamp (clamp member)
33b: second clamp (clamp member)
35: first suction hole
37: second suction hole
39: Positioning pin (positioning member)
40: Cancer
41: Sheet-fed sheet
42: Positioning hole
43:
45: first resin part
47: primary molded product
51: second resin part
53: Secondary molded product
61:
63: Mold rotating device
65: mold forward / backward device
67: First resin injection device
69: Second resin injection device
71: flat surface suction device
73: Product suction unit
75: Clamp driving device
77: Long-lifted seat drive
79: Various sensors

Claims (16)

delete delete delete delete A mold for simultaneous decorating molding for use in simultaneous decorating molding in which an injection-molded article is formed from a molten resin and a sheet-like decorating sheet is fixed to the surface of the injection-molded article.
A first stationary mold,
A second stationary mold disposed in parallel with the first stationary mold,
The movable mold being movable by rotation between a position opposed to the first stationary mold and a position opposed to the second stationary mold and further capable of approaching and separating from the first stationary mold and the second stationary mold, A movable mold,
A robot which passes the plurality of clamp members and arranges the sheet in the movable mold,
At least one piece is moved to a clamp opening position where the resistance to the sheet is reduced when the sheet is placed on the movable mold And a plurality of clamp members,
A first molding space portion for molding a primary molded product using the sheet-like decorating sheet is formed between the first stationary mold and the movable mold,
Wherein a second molding space portion for molding the secondary molded product is formed between the second stationary mold and the movable mold by molding the molten resin further different from the primary molded product,
Mold for simultaneous decorative molding. 6. The method of claim 5,
Wherein at least one of the plurality of clamp members is movable between a clamp position close to the movable mold and a clamp release position spaced apart from the clamp position obliquely outwardly with respect to the movable mold. The method according to claim 5 or 6,
At least one pair of the clamp members is movable between a clamp position close to the movable mold and a clamp release position spaced apart from the clamp position in a direction perpendicular to the movable mold, A mold for simultaneous decorative molding having different distances from the movable mold. The method according to claim 5 or 6,
Further comprising a suction device,
Wherein the second stationary mold has a flat surface and a partial cavity constituting the second molding space,
Wherein the second stationary mold has a suction hole that opens in the flat surface,
Wherein the suction device draws a portion of the sheet around the secondary molded article when the movable mold falls from the second stationary mold after the secondary molded article is molded. The method according to claim 5 or 6,
Wherein the plurality of clamp members are a plurality of members elongated corresponding to sides of the sheet,
Wherein the robot moves the sheet in the space surrounded by the plurality of clamp members when the sheet is placed on the movable mold. A mold for simultaneous decorating molding used for forming an injection-molded article from a molten resin and fixing the sheet to a surface of the injection-molded article, comprising: a first stationary mold; and a second stationary mold A second fixed mold and a second movable mold which are movable by rotation between a position opposed to the first stationary mold and a position opposed to the second stationary mold, A method of manufacturing a simultaneous edible molded product using a mold for simultaneous decorating with a movable mold capable of being detached, a member for pushing the sheet-like decorating sheet with the movable mold, and a plurality of clamp members separated from each other,
Moving at least one of the plurality of clamp members to a clamp releasing position for reducing the resistance to the sheet,
Wherein the sheet-like decorating sheet is passed through the plurality of clamp members to be disposed in the movable mold,
The plurality of clamps pushing the sheet-like decorating sheet to the movable mold,
A first molding space for molding the primary molded product is formed by making the movable mold approach the first fixed mold,
Molding the molten resin into the first molding space, molding the primary molded article by using the sheet for decorative sheet,
The movable mold facing the second fixed mold,
Securing the second molding space portion for molding the secondary molded product by making the movable mold approach the second fixed mold,
Molding the second molding space by injecting a molten resin into the second molding space,
A method for manufacturing an edible simultaneous edible product. 11. The method of claim 10,
Further comprising a step of disposing an edible sheet on the first fixed die. The method according to claim 10 or 11,
The movable mold is separated from the second fixed mold after the secondary molded product is molded,
Further comprising the step of sucking a portion of the sheet-like decorating sheet around the secondary molded article to the second stationary mold when the movable mold is separated from the second stationary mold. The method according to claim 10 or 11,
Wherein the plurality of clamp members are a plurality of members extending long in correspondence with the sides of the sheet,
Wherein the mattress decorating sheet moves the inside of the space surrounded by the plurality of clamp members when the mattress decorating sheet is disposed in the movable mold. A mold for simultaneous decoration molding according to claim 5 or 6,
Wherein the mold for simultaneous shaping includes a robot positioning member for positioning the robot on the mold for simultaneous decorating molding when the robot carries the mattress decorating sheet to the molding simultaneous decorating mold, Simultaneous decorating device. delete delete

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