JPH11277568A - Clamping device and manufacture of film-inserted molded product using clamping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamping device which is capable of minimizing the stretching irregularities and the wasted part of a film with other advantages by making it possible to suck the film of a small area by the device and a method for manufacturing film-inserted molded products using the clamping device. SOLUTION: In the clamping device with clamping plates 4, 5 for clamping a film 3 to be introduced, in non-parallel with the inclined parting face 1 of an injection molding die, the clamping plates 4, 5 are rotatable centered around a horizontal shaft or/and a perpendicular shaft in order to bring the film 3 into proximity with a cavity forming recessed part 2 in the inclined parting face 1. The shape of the clamping plates 4, 5 is such that the film 3 can be held encircling the opening part of the cavity forming recessed part 2 completely or the film 3 can be held at some part of the periphery of the opening part of the cavity forming recessed part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a film insert molded product used for interior / exterior panels of automobiles, electric appliances and the like, and a clamp device used for the production method.

[0002]

2. Description of the Related Art Conventionally, there are the following methods for producing a film insert molded product including a step of introducing a film non-parallel to an inclined parting surface on which a cavity forming surface of an injection mold is formed. . As shown in FIGS. 16 to 18, an injection molding die including a vertical parting surface, an inclined parting surface in which a cavity forming recess is formed, and an auxiliary parting surface is used. (See FIG. 16), press the film with a vertical clamp plate against the vertical parting surface of the injection molding die, suck the heated film if necessary, and remove all of the inclined parting surface. After the film is formed into a three-dimensional shape by bringing the film into close contact with the inner surface of the cavity forming recess and all of the auxiliary parting surfaces (see FIG. 17), the mold A and the mold B are closed ( FIG. 18), the molten resin is injected into the cavity space 20 formed by closing the mold, the molten resin is cooled and solidified, and a resin molded product to which the film is adhered is obtained. There are things to take out the I Lum insert-molded product.

[0003]

However, conventionally, when a film is formed into a three-dimensional shape, it is necessary to stretch and adhere the film not only to the inner surface of the cavity forming recess but also to the auxiliary parting surface. A large suction force for sucking a large area film is required. In addition, the degree of stretching of the film also increases. When a large area film is sucked, the degree of stretching of the film tends to be uneven. Further, when a large suction force is required, equipment costs for preparing a vacuum suction device that exerts a large suction force are required. Further, when the degree of stretching of the film is increased, the film is likely to be torn or the pattern of the film is deformed due to insufficient stretching of the film.

[0004] Also, what is originally required as a film portion formed into a three-dimensional shape is a portion corresponding to only the inner surface of the cavity forming concave portion, but conventionally, a film portion corresponding to the auxiliary parting surface is also required. It is formed into a three-dimensional shape. Since the film portion corresponding to the auxiliary parting surface is a portion that is finally discarded, a wasteful portion of the film increases by an area that is brought into close contact with the auxiliary parting surface. Also, because the clamp plate becomes large,
The cost of manufacturing the clamp plate becomes large, and the operation of the clamp plate becomes slow.

SUMMARY OF THE INVENTION The present invention relates to a clamp device and a film insert molded product using the same, which are capable of sucking a small-area film to thereby reduce unevenness in film stretching and wasteful portions of the film. And a method for producing the same.

[0006]

Means for Solving the Problems A clamping device of the present invention and a method of manufacturing a film insert molded product using the same are as follows in order to solve the above problems.
2. The clamping device according to claim 1, further comprising a clamp plate for clamping a film introduced non-parallel to the inclined partition surface of the injection molding die, wherein the clamp plate has a cavity-forming recess formed on the inclined partition surface. In order to bring the film closer to the clamping device, the clamping device is rotatable about a horizontal axis and / or a vertical axis.

According to a second aspect of the present invention, there is provided a clamp apparatus having at least two or more clamp plates for clamping a film introduced in a direction non-parallel to an inclined partition surface of an injection mold. In order to make the film approach the cavity forming concave portion of the inclined partitioning surface, the clamp device is characterized in that the film can be rotated about a horizontal axis and / or a vertical axis while the film is sandwiched by two or more clamp plates. .

[0008] As described in claim 3, in claim 2, the two or more clamp plates are at least clamp plates A
And a clamp plate B, wherein the clamp plate A is a single frame-shaped clamp plate, and the clamp plate B is a clamp plate piece that sandwiches the downstream side of the introduced film first; A clamp device is formed of a post-clamping plate piece that is sandwiched after the film is clamped on the downstream side of the film on the other side, and the front clamp piece and the rear clamp piece are combined to form a frame.

As described in claim 4, claims 2 and 3
A method for producing a film insert molded product using the clamp device according to any one of the above, wherein an inclined parting surface in which a cavity forming recess is formed in an injection molding die including a die A and a die B is formed. A film is introduced in parallel, and a clamp plate A of a clamp device provided in an injection mold is provided.
And the film between the frame-shaped clamp plate B,
By rotating the clamp plate A and the frame-shaped clamp plate B with the film sandwiched about the horizontal axis and / or the vertical axis, the film is brought close to the cavity forming recess of the inclined parting surface, and the frame-shaped clamp plate B is rotated. After the film is pressed against the inclined parting surface, the mold A and the mold B are closed with the clamp plate interposed therebetween, and the molten resin is injected into the cavity space 20 formed by closing the mold. Then, the molten resin is cooled and solidified to obtain a resin molded product to which the film is adhered, and the clamp plate A and the frame-shaped clamp plate B are separated at the same time as opening of the mold or before or after opening the mold. And removing the film insert molded product from the method.

According to a fifth aspect of the present invention, there is provided a method for manufacturing a film insert molded product using an injection molding die in which a cavity forming recess is formed on an inclined partition surface rotated about a horizontal axis. In addition, a method for manufacturing a film insert molded product in which the clamp plate A and the frame-shaped clamp plate B sandwiching the film are rotated about a horizontal axis is provided.

According to a sixth aspect of the present invention, there is provided a method for manufacturing a film insert molded product using an injection mold having a cavity forming recess formed on an inclined partition surface rotated about a vertical axis. Then, a clamp plate A and a frame-shaped clamp plate B with a film interposed therebetween are fixed to a mold A, and a method for producing a film insert molded product is rotated around a vertical axis.

As described in claim 7, claims 4 to 6
In any one of the above, a method for producing a film insert molded product using the clamp device according to claim 3,
The film is introduced into the mold for injection molding, and the film is sandwiched between the downstream portion of the film of the clamp plate A provided on the mold for injection molding and the first clamp piece of the clamp plate B. A method for manufacturing a film insert molded product including a process in which the front clamp piece and the rear clamp piece are united by clamping the film between the portion other than the downstream portion and the rear clamp piece of the clamp plate B to form the clamp plate B into a frame shape. did.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a clamp device according to the present invention and a method for manufacturing a film insert molded product using the same will be described with reference to the drawings.

According to the present invention, there is provided a clamp apparatus having a clamp plate for sandwiching a film introduced non-parallel to an inclined partition surface of an injection molding die, wherein the clamp plate has a cavity forming recess formed on the inclined partition surface. That is rotatable about a horizontal axis and / or a vertical axis to bring the film closer to the camera.

The clamp plate of the clamp device is rotatable about a horizontal axis and / or a vertical axis in order to bring the film 3 closer to the cavity forming recess 2 of the inclined partitioning surface 1 of the injection molding die described later. Things. The shape of the clamp plate may be a shape in which the film 3 is pressed so as to completely surround the opening of the cavity forming recess 2, or a shape in which the film 3 is pressed in a part around the opening of the cavity forming recess 2. . Examples of the former include those having a 型 -shaped frame-shaped clamp or a □ -shaped frame-shaped clamp, but the shape may be similar to the shape of the opening of the cavity forming recess 2. Examples of the latter include a double clamp and a double clamp. ○ In each case of type, □ type, D type, U type, etc., one single clamp plate 2
6 (see FIGS. 11 to 13), and may be formed of two or more clamp plate pieces. On the downstream side of the film of the clamp plate, there may be provided gripping means for gripping the downstream side of the film 3 introduced non-parallel to the inclined parting surface 1 and moving to the inclined parting surface 1. Further, the inner wall surface of the opening of the clamp plate may be the inclined surface 27. If the injection mold described later has a vacuum suction port, a clamp plate is provided to prevent air from entering between the clamped film 3 and the cavity forming recess 2 during vacuum suction. It is preferable to use a frame-shaped clamp plate (FIGS. 15A and 15B).
reference). For the same purpose, a sealing material such as a so-called O-ring may be provided on a surface of the clamp plate that is in close contact with the inclined parting surface 1.

When the clamp plate is composed of two or more clamp plate pieces, the first clamp plate piece 4 for first clamping the downstream side of the film 3 and the film 3 after being clamped by the first clamp plate piece 4. There is a rear clamp plate piece 5 for clamping an arbitrary portion other than the downstream side of the above, and a frame-like member is formed by combining the front clamp plate piece 4 and the rear clamp plate piece 5 (FIG. 15B )reference). In this case, the tip clamp plate piece 4 rotates and the cavity forming recess 2
Approaching the downstream side of the film 3 and the inclined parting surface 1
First, the rear clamp plate piece 5 is rotated and united with the previous clamp plate piece 4, whereby the film 3 is pressed.
It is preferable that the whole of the predetermined portion is pressed against the inclined parting surface 1. In the case where the mold for injection molding described later has a vacuum suction port, a clamp plate is provided to prevent air from entering between the clamped film 3 and the cavity forming recess 2 during vacuum suction. Piece 4
Also, a sealing material such as a so-called O-ring may be provided on a surface of the rear clamp plate piece 5 that is in close contact with the inclined parting surface 1.

The clamp plate includes a clamp plate A6 and a clamp plate B for sandwiching the film 3 therebetween (see FIGS. 1 to 9). In this case, the film 3 is sandwiched between the clamp plate A6 and the clamp plate B without any wrinkles, and the clamp plate A6 and the clamp plate B are integrated while the film 3 is sandwiched, It will rotate. In the case where the injection mold described later has a vacuum suction port, the mold B is used to prevent air from entering between the clamped film 3 and the cavity forming recess 2 during vacuum suction. The clamp plate B located on the side may be a frame-shaped clamp plate (see FIGS. 15A and 15B). Further, for the same purpose, a sealing material such as a so-called O-ring is provided on a joint surface between the clamp plate A6 and the clamp plate B or a surface of the clamp plate A6 and the clamp plate B which is in close contact with the inclined parting surface 1. May be provided.

The horizontal axis and / or the vertical axis serving as the rotation axis of the clamp plate may be set at an arbitrary position on the clamp plate itself or at an arbitrary position separated from the clamp plate. As a specific example, when a rectangular frame-shaped clamp plate is used, the film upstream end clamp bar 8 of the clamp plate is set on the horizontal axis (FIGS. 1 to 9 and FIGS. 11 to 11).
It is preferable to set the film side end clamp bar 9 on the vertical axis (see FIGS. 14 and 15 (a)). A cutting means 10 for cutting the film 3 when clamping the film 3 to the parting surface or when sandwiching the film 3 with another clamp plate is provided on the film upstream end clamp bar 8 of the clamp plate. May be provided. Examples of the cutting means 10 include a metal cutter and a heat cutter. The cutting means 10 is not the film upstream end clamp bar 8 but the inclined parting surface 1.
Etc. may be provided on the parting surface.

The rotation of the clamp plate is preferably performed by using a driving means embedded in the mold A13 and the curved rod 11. The driving means includes an air cylinder, a hydraulic cylinder, a stepping motor, a servomotor, and the like. Further, the drive for sandwiching the film 3 between the clamp plate A6 and the clamp plate B may be performed using a driving means embedded in the clamp plate A6 and the linear rod 12.

The mold for injection molding applicable to the clamp device of the present invention includes a mold A13 and a mold B14. The mold A13 has an inclined parting surface 1, a cavity forming recess 2, a vacuum Suction port (cavity forming recess 2
Alternatively, it is formed on the inclined parting surface 1. ). Some molds B14 include an inclined parting surface that matches the inclined parting surface 1, a cavity forming recess 2, and an injection gate 15. Inclined parting surface 1 on which cavity forming recess 2 is formed
May be a surface rotated about a horizontal axis or a surface rotated about a vertical axis. Inclined parting surface 1
May be inclined in relation to the surface of the film 3 introduced into the injection molding die. Therefore, the inclined parting surface 1 includes a parting surface that presents a horizontal plane and a vertical plane with respect to the ground. The mold A13 and the mold B14 may be so-called movable molds or so-called fixed molds. Also, the cavity forming recess 2
The inclined parting surface 1 on which is formed is a completely flat surface,
Any surface such as a surface having a step, a curved surface, a curved surface, or the like may be used. The injection molding die may be used for a horizontal injection molding machine or may be used for a vertical injection molding machine. On the upstream side of the film on the parting surface of the mold A13 (for example, the upper side of the paper surface in FIG. 1), when the film 3 is clamped on the parting surface, or between the film 3 and another clamp plate. A cutting unit 10 that cuts the film 3 when sandwiching the film 3 may be provided. Examples of the cutting means 10 include a metal cutter and a heat cutter.

The injection mold may have a film unwinding roll means. The film unwinding roll means may be provided above the injection mold. The film unwinding roll means includes a film roll 16 on which a series of films 3 are wound in a roll shape, a rotating shaft, and the like. The film 3 unwound from the film unwinding roll means may be guided to a standby position on a die of a film gripping means of a film introduction means described later, or may be provided below an injection molding die. The film may be wound by the wound film winding roll means.

The film introducing means includes a film A which has been unwound from the unwinding roll means and a mold A13 and a mold B14.
This is a means to be introduced by pulling in between. The film introduction means includes a film holding means and a driving means. The film gripping means includes a push member bar 17 and a receiving member bar 18 that can grip and release the film 3 by adjusting air pressure from an air cylinder. The pushing member and the receiving member are attached to the driving means. The driving means is a ball screw 19 for reciprocating the upstream side and the downstream side of the film 3.

The film 3 applicable to the clamping device of the present invention is a film in which a pattern layer, an adhesive layer, and the like are sequentially laminated on a base sheet, and the base sheet is not peeled off after the molding resin adheres to the film 3. There is a so-called insert film. Alternatively, as the film, there is a so-called transfer film in which a release layer, a picture layer, an adhesive layer, and the like are sequentially laminated on a base sheet, and the base sheet is separated after a molding resin is adhered to the film. Examples of the material of the base sheet include various resins such as polyethylene terephthalate, polypropylene, acrylic, and thermoplastic elastomer, or a cloth or a nonwoven fabric knitted with various fibers. The picture layer is a layer that gives letters, figures, symbols, patterns, colors, other patterns, etc. to the surface of the molded product. The picture layer includes a normal printed pattern and a conductive pattern formed of a conductive material. The picture layer uses a resin binder and a pigment or a dye. The picture layer may use a resin binder and a metal pigment or an inorganic pigment having a masking property.
The picture layer may be composed of a metal vapor-deposited layer to give a metallic luster. The adhesive layer is a layer for bonding the film and the resin molded product 22. For the adhesive layer, a heat-sensitive or pressure-sensitive resin suitable for the material of the molding resin is appropriately used. For example, when the molding resin is an acrylic resin or a urethane resin, a vinyl chloride-vinyl acetate copolymer resin or an acrylic resin may be used as the adhesive layer. The picture layer and the adhesive layer are formed by various printing methods. The adhesive layer may use a resin film.

A method for manufacturing a film insert molded product using the clamp device according to the present invention is a method for manufacturing a film insert molded product using any one of the above-described clamp devices, comprising the steps of forming a mold A13 and a mold B14. The film 3 is introduced non-parallel to the inclined parting surface 1 in which the cavity forming concave portion 2 of the injection molding die is formed, and the clamp plate A6 and the frame-shaped clamp plate of the clamping device provided in the injection molding die. B7, the film 3 is sandwiched, and the clamp plate A6 and the frame-shaped clamp plate B7 sandwiching the film 3 are rotated about a horizontal axis and / or a vertical axis, thereby forming the cavity of the inclined parting surface 1. After the film 3 is brought close to the forming recess 2 and the film 3 is pressed against the inclined parting surface 1 by the frame-shaped clamp plate B7, The mold A13 and the mold B14 are closed with the clamp plate interposed therebetween, and the molten resin 21 is injected into the cavity space 20 formed by closing the mold, and the molten resin 21 is cooled and solidified. Obtaining the bonded resin molded product 22, separating the clamp plate A6 and the frame-shaped clamp plate B7 simultaneously with or before or after the mold opening, and taking out the film insert molded product 23 from the injection mold. It is a feature. Hereinafter, an example will be described.

First, the film 3 is introduced between the mold A13 and the mold B14, and between the clamp plate A6 and the clamp plate B provided on the mold A13. Clamp plate A6
And the frame-shaped clamp plate B7 are on standby in a state not parallel to the inclined parting surface 1 in which the cavity forming concave portion 2 of the mold A13 is formed. More specifically, above the injection mold composed of the mold A13 and the mold B14, the leading end (divided end) of the film 3 unwound from the film roll 16 in the introduction direction is set to the film introduction means. It is gripped by gripping means (a pushing member and a receiving member). The leading end of the leading end of the film 3 in the introduction direction is protruded from the film holding means. Next, the film gripping means gripping the film 3 is moved downward, and the film 3 is introduced between the mold A13 and the mold B14 (see FIG. 1). The film gripping means is brought closer to the leading clamp plate piece 4 of the frame-shaped clamp plate B7 which can be divided. The leading edge of the film 3 protruding from the film gripping means is set to the leading clamp plate piece 4 of the clamp plate B.
And the clamp plate A6 on the downstream side of the film (see FIG. 2). The film holding means is clamp plate A
After slipping out from between the frame 6 and the frame-shaped clamp plate B7, the rear clamp plate piece 5 of the clamp plate B and the portion of the clamp plate A6 other than the film downstream sandwich the film 3 (see FIG. 3). The front clamp plate piece 4 and the rear clamp plate piece 5 are united to form a frame-shaped clamp plate. Further, since the film 3 is under back tension, the clamp plate A
6 and the frame-shaped clamp plate B7 are sandwiched without wrinkles. Further, when the film 3 is sandwiched between the rear clamp plate piece 5 and the clamp plate A6 of the frame-shaped clamp plate B7, the upstream side of the film may be cut (see FIG. 4). Cutting is performed using a clamp plate A6 or a frame-shaped clamp plate B7.
The cutting may be performed by the cutting unit 10 provided on the film upstream end clamp bar 8 or by the cutting unit 10 provided on the upstream side of the film on the parting surface of the mold A13.

Next, by rotating the clamp plate A6 and the frame-shaped clamp plate B7 sandwiching the film 3 around the horizontal axis, the inclined parting surface 1 rotated around the horizontal axis of the mold A13 is rotated. The film 3 is made to approach the cavity forming recess 2, and the film 3 is pressed against the inclined parting surface 1 by the frame-shaped clamp plate B <b> 7.
Specifically, the horizontal axis is set to a clamp bar on the film upstream side of the frame-shaped clamp plate B7, and the clamp plate A6 and the frame-shaped clamp plate B7 sandwiching the film 3 are rotated around the axis. Then, the film 3 is pressed against the inclined parting surface 1 so as to completely cover the opening of the cavity forming recess 2 of the inclined parting surface 1 (see FIG. 5). The clamp plate A6 can fit into a groove (not shown) formed in the inclined parting surface 1 of the mold A13. If necessary, the heating means 24 may be used as a separate step from the introduction of the film 3 as a mold A13 and a mold B14.
After the film 3 is heated and the cavity 3 is heated, the cavity 3 is vacuum-sucked to bring the film 3 into close contact with the inner surface of the cavity 2 of the mold A13 (see FIG. 6).

According to the present invention, the clamp plate A6 and the frame-like clamp plate B7 sandwiching the film 3 are rotated about the vertical axis so that the vertical axis of the mold A13 of the injection molding die is centered. It is also possible to make the film 3 approach the cavity forming concave portion 2 of the inclined parting surface 1 rotated and press the film 3 against the inclined parting surface 1 by the frame-shaped clamp plate B7 (see FIG. 14). In the case shown in FIG. 14, the near side with respect to the drawing is above the injection mold.

Next, the clamp plate A6 and the clamp plate B
The mold A13 and the mold B14 are closed with the mold sandwiched therebetween, the molten resin 21 is injected into the cavity space 20 formed by closing the mold, the molten resin 21 is cooled and solidified, and the film 3 is bonded. A molded resin article 22 is obtained. Specifically, the molten resin 21 is injected from the injection gate 15 of the mold B14.
The molten resin 21 is cooled and solidified while the adhesive layer of the film 3 and the molten resin 21 are in contact with each other, and the film 3 is bonded to the resin molded product 22 (see FIG. 7). As the molding material of the molten resin 21, polystyrene resin, ABS
Resins, polycarbonate resins, polypropylene resins, polyethylene resins and the like can be used.

Next, simultaneously with or before or after opening of the mold A13 and the mold B14, the clamp plate A6 and the frame-shaped clamp plate B7 are separated from each other, and film insert molding is performed from the inside of the injection mold. The article 23 is taken out. Specifically, the clamp plate A6 and the frame-like clamp plate B7 are separated from each other, and the tongue-like peripheral portion 2 of the film 3 bonded to the resin molded product 22 is separated.
5 is released, the resin molded product (the film insert molded product 23) to which the film 3 having the tongue-shaped peripheral portion 25 is adhered is moved together with the mold B14, and the film insert molded product 23 is extracted from the clamp plate. Finally, if necessary, the resin molded product 22 to which the film 3 is adhered is ejected from the mold B14 by an ejector pin provided on the mold B14, and may be removed from the injection mold.

When the horizontal axis for rotating the clamp plate A6 and the frame-shaped clamp plate B7 sandwiching the film 3 is set to the clamp bar on the film upstream side of the clamp B, the mold A13 and the mold A13 are used. The clamp plate A6 and the frame-shaped clamp plate B7 can be separated at the same time as or before the mold opening with the mold B14.

When the clamp plate A6 and the frame-shaped clamp plate B7 sandwiching the film 3 have a mechanism capable of moving following the operation of the mold B14 when the mold is opened, the mold A13 is used. The clamp plate A6 and the frame-shaped clamp plate B7 can be separated from each other after the opening operation of the mold and the mold B14 is started.

When the clamp bar 8 is, for example, a rectangular frame-shaped clamp plate and the film upstream end clamp bar 8 of the clamp plate is set to the horizontal axis, the film upstream end of the inner wall surface of the opening of the clamp plate is provided. When the portion corresponding to the clamp bar 8 or the downstream end clamp bar is formed as the inclined surface 27, when the film insert molded product 23 is extracted from the cavity forming recess 2, the film insert molded product 2 is removed.
This is effective because 3 does not catch on or hit the clamp plate (see FIG. 15C). Further, for example, in the case of a rectangular frame-shaped clamp plate, and the film side end clamp bar 9 of the clamp plate is set to the vertical axis, in order to obtain the same effect as above, the opening of the clamp plate A portion of the inner wall surface corresponding to the film side end clamp bar 9 may be an inclined surface 27 (see FIG. 14).

[0033]

According to the present invention, there is provided a clamping apparatus having a clamp plate for clamping a film 3 introduced non-parallel to a slanted parting surface of an injection mold, wherein the clamp plate has a cavity formed on the slanted parting surface. A clamping device that is rotatable about a horizontal axis and / or a vertical axis to bring the film closer to the recess. Further, in a clamp device having at least two or more clamp plates for clamping a film introduced in a direction non-parallel to the inclined particle surface of the injection molding die, the clamp plate applies the film to the cavity forming concave portion of the inclined particle surface. A clamp device that can rotate about a horizontal axis and / or a vertical axis while sandwiching a film between two or more clamp plates so as to approach each other. Further, the present invention is a method for manufacturing a film insert molded product using the above-described clamp device.

Therefore, even when the film is brought into close contact with the inner surface of the cavity forming recess and formed into a three-dimensional shape, the film only needs to be stretched and brought into close contact with only the inner surface of the cavity forming recess. It only takes power. Further, the degree of stretching of the film can be small.
For this reason, unevenness in the degree of stretching of the film hardly occurs. In addition, a small and inexpensive vacuum suction device is sufficient, and no equipment cost is required. In addition, since the degree of stretching of the film is small, tearing of the film and deformation of the pattern of the film due to insufficient stretching of the film hardly occur.

Further, according to the present invention, since the film can be clamped at the position closest to the cavity forming recess, the film portion finally discarded can be minimized. In addition, the size of the clamp plate is reduced, so that the cost of manufacturing the clamp plate is reduced, the operation of the clamp plate is agile, and the production efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 2 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 3 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 4 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 5 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 6 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 7 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 8 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 9 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 10 is a sectional view showing one embodiment of the method for producing a film insert molded product of the present invention.

FIG. 11 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 12 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 13 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 14 is a cross-sectional view showing one embodiment of the clamp device of the present invention and a method of manufacturing a film insert molded product using the same.

FIG. 15 (a) is a front view showing an embodiment of the clamp device of the present invention. (B) is a front view showing another embodiment of the clamp device of the present invention. (C) is a sectional view showing another embodiment of the clamp device of the present invention.

FIG. 16 is a cross-sectional view showing a conventional clamp device and a method of manufacturing a film insert molded product using the same.

FIG. 17 is a cross-sectional view showing a conventional clamping device and a method for manufacturing a film insert molded product using the same.

FIG. 18 is a cross-sectional view showing a conventional clamp device and a method for manufacturing a film insert molded product using the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inclined partitioning surface 2 Cavity forming concave part 3 Film 4 First clamp plate piece 5 Rear clamp plate piece 6 Clamp plate A 7 Frame-shaped clamp plate B 8 Film upstream end clamp bar 9 Film side end clamp bar 10 Cutting means 11 Curved rod 12 Linear rod 13 Mold A 14 Mold B 15 Injection gate 16 Film roll 17 Push member bar 18 Receiving member bar 19 Ball screw 20 Cavity space 21 Molten resin 22 Resin molded product 23 Film insert molded product 24 Heating means 25 Velo-shaped peripheral portion 26 Single clamp plate 27 Inclined surface

Claims (7)

[Claims] 1. A clamping device having a clamp plate for clamping a film introduced in a direction non-parallel to an inclined parting surface of an injection molding die, wherein the clamp plate approaches the film to a cavity forming recess of the inclined parting surface. A clamping device which is rotatable about a horizontal axis and / or a vertical axis to cause the rotation. 2. A clamping device having at least two or more clamp plates for clamping a film introduced non-parallel to a slanted parting surface of an injection molding die, wherein the clamp plate is formed with a cavity forming recess in the slanted parting surface. Characterized in that the film is rotatable about a horizontal axis and / or a vertical axis in a state where the film is sandwiched between two or more clamp plates in order to bring the film closer to the apparatus. 3. The two or more clamp plates include at least a clamp plate A and a clamp plate B, wherein the clamp plate A is
One frame-shaped clamp plate, in which a clamp plate B sandwiches the downstream side of the introduced film first, and a clamp plate piece that sandwiches the downstream side of the film later than when the downstream side of the film is sandwiched. The clamping device according to claim 2, comprising a rear clamp plate, wherein the front clamp and the rear clamp are united to form a frame. 4. A method for producing a film insert molded product using the clamp device according to claim 2, wherein a cavity forming recess of an injection molding die comprising a die A and a die B. The film is introduced non-parallel to the inclined parting surface on which is formed, and the film is sandwiched between the clamp plate A and the frame-shaped clamp plate B of the clamp device provided in the injection mold, and the film is sandwiched. By rotating the clamp plate A and the frame-shaped clamp plate B around the horizontal axis and / or the vertical axis, the film approaches the cavity forming recess of the inclined parting surface, and the film is clamped by the frame-shaped clamp plate B. After being pressed against the inclined parting surface, the mold A and the mold B are closed with the clamp plate interposed therebetween, and the cavity space formed by closing the mold. The molten resin is injected into 20 to cool and solidify the molten resin, to obtain a resin molded product to which the film is adhered, and to separate the clamp plate A from the frame-shaped clamp plate B simultaneously with or before or after opening of the mold. And removing the film insert molded product from the injection molding die. 5. A method for producing a film insert molded product using an injection mold having a cavity forming concave portion formed on an inclined partitioning surface rotated about a horizontal axis, wherein a clamp plate A sandwiching a film is provided. The method for manufacturing a film insert molded product according to claim 4, wherein the frame insert and the frame-shaped clamp plate B are rotated about a horizontal axis. 6. A method for manufacturing a film insert molded product using an injection molding die having a cavity forming recess formed on an inclined partition surface rotated about a vertical axis, wherein a clamp plate A with a film sandwiched therebetween is provided. The method for producing a film insert molded product according to claim 4, wherein the frame insert and the frame-shaped clamp plate B are fixed to the mold A and rotated about a vertical axis. 7. A method for producing a film insert molded product using the clamp device according to claim 3, wherein a film is introduced into an injection molding die, and a clamp plate A provided on the injection molding die. The film is sandwiched between the downstream portion of the film and the front clamp piece of the clamp plate B, and then the film is sandwiched between the portion other than the film downstream portion of the clamp plate A and the rear clamp piece of the clamp plate B, thereby forming the first clamp piece. The method for producing a film insert molded product according to any one of claims 4 to 6, further comprising a step of forming the clamp plate B into a frame shape by combining the rear clamp pieces.