JP2002337181A - Resin molding method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize high-speed production of a resin-molded product with a processed sheet layer joined to the surface. SOLUTION: A band-like continuous body S with a specified part which becomes the processed sheet layer is conveyed to a space between a pair of opened mold halves 4 and 5, and the specified part is positioned in the molding parts 4a and 5a of the mold. Next, the band-like continuous body S is sandwiched between the mold halves 4 and 5, and clamped in turn. Further, the resin molded product is molded by injecting a molten resin into a gap between the sandwiched continuous body S and either of the molding parts 4a and 5a, and at the same time, the molded product and the specified part are joined together. After that, the mold halves 4 and 5 are opened after curing the resin and the resin molded product thus molded is taken out from the molding parts 4a and 5a in such a state that the molded product remains joined together on the continuous body S. Following the described steps, the continuous body S is conveyed and the body 11 of the molded product remaining on the continuous body S is carried out of the space between the mold halves 4 and 5 by conveying the continuous body S, then the carried-out body 11 of the molded product is separated together with the specified part in one piece from the continuous body S, and finally the resin molded product 10 is obtained individually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin molding technique, more specifically, an injection molding technique, and more particularly, to a process of bonding a treated sheet layer having a predetermined function to the surface of a resin molded article while molding the same. In the field of simultaneous lamination technology.

[0002]

2. Description of the Related Art Conventionally, at the same time as injection molding of a resin molded product such as a cellular phone, a processing sheet layer having a predetermined function such as an electromagnetic wave shielding function and a light reflection preventing function is laminated on the surface of the molded product. (Simultaneous molding lamination technology)
It has been known. For example, Japanese Patent Application Laid-Open No. 2000-254938 discloses a method in which a pair of fixed and movable molds is used, and when the molds are opened, a separately prepared sheet-shaped processing sheet is set in a molding portion of one of the molds. Has been described. Then, at the time of mold clamping, a technique of injecting a molten resin into a cavity formed by a molding portion of both molds in contact with each other and joining and laminating the treated sheet on the surface of the resin molded product by the heat and pressure. Is disclosed.

[0003]

However, in such a conventional technique, each time a resin molded product is formed, a sheet-like processed sheet must be set in the mold forming section. Further, after opening the mold, it is necessary to take out the molded resin molded product from the mold molding part. Therefore, even if these operations are mechanized and automated, the operations are not efficient, the number of operations is increased, and productivity is reduced. In addition, the mold opening time becomes longer, and the probability of occurrence of a defective product due to the intrusion of foreign matter into the mold forming part increases.

Accordingly, an object of the present invention is to produce a resin molded product having a treated sheet layer bonded to its surface at a high yield with a high yield.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 of the present application is a method for molding a resin molded article having a treated sheet layer joined to a surface thereof. A belt-shaped continuum having a part or the entirety of a predetermined part to be conveyed is transported between a pair of opened molds, and a conveyance step of positioning the predetermined part in a mold forming part, and a step of sandwiching the band-shaped continuum. A mold-clamping step of clamping and injecting a molten resin between the sandwiched band-shaped continuous body and one of the mold-forming portions to form a resin molded product, and simultaneously molding the molded product and the predetermined portion. Injecting step for joining, opening the mold after curing of the resin, opening the mold and taking out the molded resin molded product from the mold forming part while remaining on the continuous strip by the above-mentioned joining, and transporting the continuous strip. Then, the resin molded product remaining on the continuous body is removed from between the molds. And unloading step of leaving, characterized in that the unloading resin molded article and a separation step of separating from the strip the continuum to a predetermined portion integrally.

According to the present invention, instead of using a sheet-like processing sheet as in the related art as a supply source of a processing sheet layer to be joined to a resin molded product, a predetermined portion to be a processing sheet layer is partially or entirely provided. Is used. Then, in the carrying step, the predetermined portion of the continuous body is positioned in the mold forming section by carrying the belt-shaped continuous body between the molds. As a result, it is not necessary to set the processing sheet in the mold forming section each time molding is performed as in the related art, so that the work is made more efficient, the number of work is reduced, and the productivity is improved.

[0007] On the other hand, the resin molded article molded by injection of the molten resin is bonded to a predetermined portion of the belt-shaped continuous body by heat and pressure at the time of the injection, and remains on the continuous body. Therefore, after opening the mold, in the unloading step, by transporting the strip-shaped continuous body, the resin molded product remaining on the continuous body can be unloaded from between the dies. As a result, the resin molded product does not have to be taken out of the mold forming part each time molding is performed as in the related art, so that the work is made more efficient, the number of work is reduced, and the productivity is improved.

Further, these transporting steps (more specifically, positioning of a predetermined portion for the next molding) and the unloading step (unloading of the previously molded resin molded product) are performed by the same strip-shaped continuous body. Since the operations can be performed simultaneously and in parallel, the efficiency of the operation, the number of operations, and the productivity can be further improved.

In addition, since the efficiency of the work during the mold opening period shortens the mold opening time, the possibility that dust, dust and other foreign matter enter the mold forming part is reduced, and the yield is reduced. Is improved.

[0010] Finally, in the separating step, the resin molded article on the strip-shaped continuum is separated from the continuum integrally with a predetermined portion, so that one resin molded article having the treated sheet layer bonded to the surface thereof is obtained. Obtained as one final product.

Next, a second aspect of the present invention is the first aspect.
In the invention described in (1), a strip-shaped sheet made of the same material as the processing sheet layer is used as the strip-shaped continuum having a predetermined portion serving as a processing sheet layer in the entirety.

Further, the invention according to claim 3 is the same as the invention according to claim 2.
In the invention described in (1), a notch is provided in a predetermined shape at a portion to be joined to the resin molded product.

The invention described in claim 4 is the first invention.
In the invention described in (1), a strip-like continuous body having a predetermined portion serving as a processing sheet layer in a part thereof is provided with a large number of processing sheet layers provided releasably on a strip-shaped mount.

According to these inventions, some specific embodiments of the above-mentioned strip-shaped continuum are shown. According to the second aspect of the present invention, any portion of the belt-like sheet can be used as a treatment sheet layer, so that accurate positioning is not required. In addition, the configuration is simple.

According to the third aspect of the present invention, the band-shaped sheet is cut. This makes it easier to separate the final product from the strip. In addition, as the above-mentioned cut, a perforation, a half cut, or the like can be adopted.

On the other hand, the invention according to claim 4 is
This is an example in which a predetermined portion serving as a processing sheet layer is partially provided.
Since the treatment sheet layer itself is provided on the strip-shaped backing so as to be peelable, the final product can be easily separated from the strip-shaped continuum by, for example, adsorbing a molded product or folding the backing.

Next, a fifth aspect of the present invention is an apparatus for molding a resin molded article having a treated sheet layer joined to a surface thereof, wherein a mold driving means for opening or clamping a pair of molds. And when the mold is opened by the driving means, a belt-shaped continuous body having a predetermined portion to be a processing sheet layer is partially or entirely conveyed between the molds, and the predetermined portion is molded. When the mold is clamped by the transporting means positioned in the molding part and the driving means, the molten metal is melted between the band-shaped continuous body sandwiched between the molds and one of the molding parts. By injecting the resin and simultaneously molding the resin molded article, an injection means for joining the molded article and the predetermined portion, and remaining on the continuous strip by the joining, Is the resin molded product carried out from between the dies a belt-shaped continuous And having a separating means for separating.

According to the present invention, similarly to the first aspect, the processing sheet layer to be bonded to the resin molded article is not used as a supply source of a sheet-like processing sheet as in the related art, but is a predetermined processing sheet layer to be a processing sheet layer. Since a strip-shaped continuous body having a part or the entirety of the part is used, the processing sheet can be set in the molding part each time molding is performed, or the resin molded product can be removed from the molding part each time, as in the past. As a result, the resin molded product having the treated sheet layer bonded to the surface is reduced in the possibility of foreign matter contamination, and the yield is improved.
Each one can be produced at high speed.

According to a sixth aspect of the present invention, there is provided an apparatus for molding a resin molded article having a treated sheet layer joined to a surface thereof, comprising: mold driving means for opening or clamping a pair of dies. When the mold is opened by the driving means, a belt-shaped continuous body having a part or the entirety of a predetermined portion to be a processing sheet layer is conveyed between the dies, and the predetermined portion is dies. When the mold is opened by the driving means, the transfer film having a predetermined pattern transfer portion to be transferred to the surface of the resin molded product is transferred between the molds when the mold is opened by the driving means. A second conveying means for positioning the transfer portion in the mold forming portion; and a belt-shaped continuous body and a transfer film sandwiched between the molds when the mold is clamped by the drive means. Inject molten resin between An injection means for joining the molded article and the predetermined portion, and transferring the transfer portion to the molded article; and a mold which is left on the belt-shaped continuous body by the joining, and is conveyed by the conveying means. It is characterized by having a separating means for separating the resin molded product carried out from between the belt-shaped continuous body and the predetermined portion integrally with the predetermined portion.

According to the present invention, in addition to the belt-shaped continuous body transporting means, a second transporting means for transporting the transfer film is added, and at the time of molding, the molten resin is interposed between the belt-shaped continuous body and the transfer film. Is injected, so that a resin molded product in which a treated sheet layer is bonded to one surface and a predetermined pattern is transferred to the other surface can be produced one by one at a high yield. Hereinafter, the present invention will be described in more detail through embodiments of the present invention.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment <Resin Molded Product> FIG. 1 is a perspective view of a resin molded product 10 produced in this embodiment. This resin molded product 10
Is a plastic part of a home appliance, for example, and has a structure in which a processing sheet layer 12 is laminated on a lower surface of a generally thin and flat rectangular main body 11. The molded article body 11 is made of, for example, an acrylic resin having excellent transparency, and is formed of a sheet layer 12.
Is a decorative sheet for decorating a predetermined pattern, a conductive sheet for imparting an electromagnetic wave shielding function by imparting conductivity, a mat sheet for imparting a matte surface, and a hardware for preventing scratches. It is a sheet or an optical sheet for providing a light reflection preventing function.

<Resin Molding Apparatus> FIG. 2 is a schematic block diagram of the resin molding apparatus 1 for producing the resin molded article 10. The resin molding apparatus 1 has a fixed base 2 and a movable base 3 facing each other, and a fixed mold 4 is provided on the fixed base 2 and a movable mold 5 is provided on the movable base 3. Formed concave portions 4a and 5a which are recessed in a rectangular shape are formed on the mating surfaces of the dies 4 and 5. The two molded portions 4a and 5a come into contact with each other at the time of mold clamping to form a cavity having a shape corresponding to the shape of the resin molded product 10.

The fixed base 2 is provided with a molten resin injector 6, and the molten resin injected from the injector 6 is supplied to a supply path 6a formed inside the fixed mold 4 as shown in FIGS. And the runner 6b formed on the mating surface of the fixed mold 4 to reach the molding recess 4a or the cavity. On the other hand, the movable base 3 is connected to the cylinder 7, and by driving the cylinder 7, the movable mold 5 comes into contact with the fixed mold 4 (clamping) and separates (mold opening).

A long continuous strip S passes between the fixed mold 4 and the movable mold 5. This strip-shaped continuous body S is set in the form of a roll SR above the movable base 3 and the roll S
It is drawn from R. The belt-shaped continuous body S passes immediately before the movable mold 5 while being guided by the plurality of guide rollers, and is wound up by the winding roll Sr. Strip-shaped continuum S
Is intermittently conveyed along the above-described path by driving a motor (not shown) (not shown) for rotating the take-up roll Sr.

A cutter as separation means 8 is provided on the transport path of the belt-shaped continuous body S. Before the strip-shaped continuous body S is wound on the take-up roll Sr, the cutter 8 punches out the molded article main body 11 adhered and remaining on the continuous body S together with the strip-shaped continuous body S, so that each of the final products is Separated as 10. The remaining portion of the strip-shaped continuous body S from which the products 10... 10 have been punched is taken up by the take-up roll Sr.

In this example, the roll SR and the take-up roll Sr of the belt-shaped continuous body S are disposed on the movable base 3 side, and the belt-shaped continuous body S passes immediately before the movable mold 5. Therefore, when the belt-shaped continuous body S is greatly pulled when the movable mold 5 is driven by the cylinder 7, the roll SR, the winding roll Sr, or the cutter 8 may be moved together with the movable base 3.

<Continuous Band> The continuous band S has a structure in which an adhesive layer Ad is provided on one surface of a band-shaped sheet Sa as shown in FIG. The entire belt-shaped sheet Sa is made of the same material as the processing sheet layer 12. Therefore, no matter what part of the strip-shaped continuous body S is used, the processing sheet 12 of the resin molded article 10 can be used.
Can be adopted as Further, the strip-shaped continuum S is formed of an adhesive layer Ad.
Passes between the molds 4 and 5 facing the fixed mold 4.

<Resin Molding Operation> First, as shown in FIG. 2, in a mold open state where the movable mold 5 is separated from the fixed mold 4,
The belt-shaped continuous body S is transported by a predetermined length (L) (transport step). At this time, the molded article main body 11 remaining on the belt-shaped continuous body S by the previous molding is
It is transported by the length L that is completely carried out from between. Then, the portions of the strip-shaped continuous body S to be joined to the molded article main body 11 in this molding are formed by the molding recesses 4 a, 5 of both the dies 4, 5.
a.

Next, the movable mold 5 is brought into contact with the fixed mold 4 and clamped (mold clamping step). The strip-shaped continuous body S is sandwiched between the two dies 4 and 5. In this state, the molten resin is injected into the cavity (injection step). The molten resin is filled between the belt-shaped continuum S and the molding recess 4 a of the fixed mold 4. The filled resin is molded into the molded article body 11. At the same time, the molded article main body 11 is joined to the belt-shaped continuous body S by the heat and pressure at the time of injection and furthermore by the adhesive layer Ad of the belt-shaped continuous body S, and adheres and remains on the belt-shaped continuous body S.

Before the resin injection, the strip-shaped continuum S may be suction-adsorbed to the molding recess 5a side of the movable mold 5 by a suction pump or the like in advance. It is preferable that the injected molten resin is surely filled into the adhesive layer Ad side of the strip-shaped continuous body S.

After the resin is cured, the movable mold 5 is separated from the fixed mold 4 to open the mold (mold opening step). The molded article main body 11 remaining on the strip-shaped continuous body S is
a. Next, the belt-shaped continuous body S is transported again by the predetermined length L (unloading step). This allows
The molded article main body 11 remaining on the strip-shaped continuous body S in this molding
Is completely carried out from between the dies 4 and 5. Further, the strip-shaped continuous body S to be joined to the molded article body 11 in the next molding is formed.
Is positioned between the molding recesses 4a and 5a of both the dies 4 and 5.

As described above, the mold opening, the conveyance and stop of the strip-shaped continuous body S, the mold clamping, the injection, the mold opening,... Are repeatedly performed, so that the strip-shaped continuous body S remains at a constant pitch (predetermined length L). A large number of molded article bodies 11 are sent to the cutter 8 one by one in order. Then, during the mold clamping period (during the stop period of the strip-shaped continuum S), the molded article main body 11 is punched out one by one with the strip-shaped continuity S by the cutter 8 and separated from the strip-shaped continuity S (separation step). . Thereby, the resin molded products 10 having the structure in which the treated sheet layer 12 is joined to the surface of the molded product main body 11 are finally obtained one by one as final products.

The separating means 8 is not provided on the conveying path of the strip-shaped continuous body S, and the strip-shaped continuous body S in which a large number of molded article bodies 11... 11 remain is wound on a winding roll Sr as it is.
The operation of separating the resin molded products 10 from the strip-shaped continuous body S may be separately performed.

<Characteristics of First Embodiment> (1) Instead of using a sheet-like sheet as a supply source of the processing sheet layer 12 to be joined to the resin molded article 10, a portion that can become the processing sheet layer 12 is entirely formed. Since the belt-shaped continuous body S is used, in the transporting step, the belt-shaped continuous body S is transported between the dies 4 and 5 so that the portion to be joined in the belt-shaped continuous body S is the two dies 4 and 5. Are positioned between the molding recesses 4a and 5a. Therefore, it is not necessary to set a portion that can be the processing sheet layer 12 in the molding recess (5a in this example) every time molding is performed, so that the efficiency of the operation, the number of operations, and the productivity are improved.

(2) The molded article main body 11 molded by injection of the molten resin is joined to the belt-shaped continuous body S by the heat and pressure at the time of injection, and remains on the belt-shaped continuous body S. In the opening process, the belt-shaped continuum S is conveyed by being separated from the molding recesses 4a, 5a of the two dies 4, 5 and taken out.
It is naturally carried out between the two dies 4 and 5. Therefore, the molded article main body 11 is also inserted into the molding recess 4 each time molding is performed.
It is not necessary to take out from the a and 5a, and the efficiency of the operation, the number of operations are reduced, and the productivity is improved.

(3) Molds 4 and 5 for strip-shaped continuous body S before molding
To the molds 4 and 5 of the molded article body 11 after molding.
And the unloading process can be performed simultaneously in a single transfer of the strip-shaped continuum S, thereby further improving the efficiency, reducing the number of operations, and improving productivity.

(4) When the molds 4 and 5 are opened, only the operation of transporting the belt-shaped continuous body S by a predetermined length L is performed, so that the mold opening time is shortened and dust and dirt are formed on the molding recesses 4a and 5a. The possibility of foreign matter such as dust being mixed is reduced, and the occurrence of defective products is suppressed.

(5) As a supply source of the processing sheet layer 12,
A strip-shaped continuous body S made entirely of the same material as the processing sheet layer 12
As described above, the processing sheet layer 12 can be supplied using any part of the strip-shaped continuum S, as a result, and as a result, accurate positioning on the dies 4 and 5 in the transport process is performed. Is unnecessary, and the configuration of the strip-shaped continuous body S itself is simplified, which is advantageous in terms of cost.

[Second Embodiment] In other embodiments described below, only the characteristic portions will be described.
Other portions are the same as those in the first embodiment.

As shown in FIG. 5, perforations Sb... Sb may be formed in the belt-shaped continuous body S. The part surrounded by the perforations Sb is the processing sheet layer 1 of the resin molded product 10 finally.
It becomes 2. Therefore, each perforation Sb is provided in the same rectangular shape as the lower surface of the molded article main body 11.

This makes it easy to separate the final product 10 from the continuous strip S in the separation step.
For example, as shown in FIG. 7, it is possible to separate the final product 10 from the strip-shaped continuum S by sucking and extracting with the robot arm 8 without using a cutter.

However, since it is necessary to perform injection molding aiming at a portion surrounded by the perforation Sb, in the process of transporting the belt-shaped continuous body S, this portion must be accurately positioned with respect to the dies 4 and 5. Must. For this purpose, for example, as shown in FIG.
M, and a photosensor 9 that includes a light projecting unit and a light receiving unit and detects the matching mark M may be arranged in the molding apparatus 1 as shown in FIG.

The strip-shaped continuum S may be cut in half instead of the perforations Sb, and the strip-shaped continuity S may be cut out instead of the matching mark M.

[Third Embodiment] As shown in FIG.
As the strip-shaped continuum S serving as a supply source of the processing sheet layer 12, a plurality of processing sheet layers 12... 12 themselves may be used so as to be releasably arranged on one surface Sd of the strip-shaped mount Sc.
Each processing sheet layer 12 is provided with a strip-shaped backing sheet S via a release layer Se.
c is temporarily attached on one side Sd. Each processing sheet layer 1
An adhesive layer Ad for joining to the molded article main body 11 is provided on the upper surface of the second product 2.

This makes it easy to separate the final product 10 from the continuous strip S in the separation step, as in the second embodiment, and as described above, the suction robot arm as shown in FIG. 8 or the like can be used. Alternatively, the end product 10 can be easily separated from the strip-shaped continuous body S by bending the strip-shaped mount Sc at an acute angle with a bending bar.

However, since it is necessary to perform injection molding aiming at each processing sheet layer 12, as in the second embodiment, means for accurately positioning each processing sheet layer 12 with respect to the dies 4 and 5 (matching mark). M, photo sensor 9, etc.).

[Fourth Embodiment] As shown in FIG.
The roll SR and the winding roll Sr of the belt-shaped continuous body S may be arranged on the fixed base 2 side, and the belt-shaped continuous body S may pass immediately before the fixed die 4. When the movable mold 5 is driven by the cylinder 7, the belt-shaped continuous body S is not greatly pulled, so that the roll SR, the winding roll Sr, the separating means 8, and the like do not need to be moved.

[Fifth Embodiment] FIG. 8 is a perspective view of a resin molded product 20 produced in the fifth embodiment. In this resin molded product 20, the treatment sheet layer 22 is laminated on the lower surface of the molded product main body 21, and the molded product main body 2
A pattern (five circles solidly painted in a predetermined color in this example) 23 is transferred to the upper surface of 1.

FIG. 9 is a schematic block diagram of the resin molding apparatus 1 for producing the resin molded article 20. In this resin molding apparatus 1, the strip-shaped continuous body S serving as a supply source of the processing sheet layer 22 is provided.
The roll SR and the take-up roll Sr are disposed on the fixed base 2 side, and the belt-shaped continuous body S passes immediately before the fixed mold 4. On the other hand, the roll FR of the transfer film F which is the supply source of the design 23
The winding film Fr is disposed on the movable base 3 side, and the transfer film F passes immediately before the movable mold 5.

The transfer film F is, as shown in FIG.
A large number of symbols 23 ... 23 on one side of the band-shaped base sheet Fa
Is provided. Each design 23 is temporarily attached to the base sheet Fa easily through a release layer.
Means (positioning mark M, photosensor 9 and the like as described above) for positioning each symbol 23 with respect to molding recesses 4a and 5a of dies 4 and 5 are provided.

In the injection step, as shown in FIG. 10, a band-shaped continuous body S on the fixed base 2 side sandwiched between the two dies 4 and 5 is provided.
A molten resin is injected between the movable base 3 and the transfer film F. Thereby, simultaneously with the molding of the molded article main body 21, the joining of the belt-shaped continuous body S to the molded article main body 21 and the transfer of the design 23 to the molded article main body 21 are performed.

Further, since the transfer film F is provided with the release layer, the molded article main body 11 does not adhere to the transfer film F side when the mold is opened, but securely adheres to and remains on the belt-shaped continuous body S side. . Thereby, finally, the molded article main body 2
The resin molded products 20 having the structure in which the treatment sheet layer 22 is bonded to one surface of the first and the predetermined pattern 23 is transferred to the other surface are produced at a high yield and one by one.

As shown by a broken line X in FIG. 4, the sheet disposed on the fixed base 2 side does not block the supply path 6a of the molten resin, whether it is the strip-shaped continuous body S or the transfer film F. It is necessary to keep in mind. In other words, if the sheet is closed, the molten resin goes behind the sheet (between the sheet and the fixed-side molding recess 4a) and molding failure occurs, so that the molten resin is reliably formed on the sheet and the movable-side molding. This is intended to be filled between the recess 5a.

[0054]

As described above, according to the present invention,
It is possible to produce a resin molded product having a treatment sheet layer having various functions laminated on its surface at a high yield with a high yield. The invention is expected to find wide application in the field of co-laminate technology.

[Brief description of the drawings]

FIG. 1 is a perspective view of a resin molded product according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of a resin molding apparatus for producing the resin molded product.

FIG. 3 is an enlarged vertical cross-sectional view of the vicinity of a cavity at the time of mold clamping of the molding apparatus.

FIG. 4 is an enlarged view of the molding apparatus as viewed from a movable base side to a fixed base side.

FIG. 5 is a perspective view of a belt-shaped continuous body according to a second embodiment.

FIG. 6 is a perspective view of a belt-shaped continuous body according to a third embodiment.

FIG. 7 is a schematic block diagram of a resin molding apparatus according to a fourth embodiment.

FIG. 8 is a perspective view of a resin molded product according to a fifth embodiment.

FIG. 9 is a schematic block diagram of a resin molding apparatus for producing the resin molded product.

FIG. 10 is an enlarged vertical sectional view of the vicinity of a cavity when the molding apparatus is clamped.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Resin molding apparatus 4, 5 Die 4a, 5a Molding part (molding concave part) 6 Injection means (injector) 7 Die drive means (cylinder) 8 Separation means (cutter, suction type robot arm) 10 Resin molding 11 Molding Product body 12 Processed sheet layer D Transport means (motor) S Strip-shaped continuum

Claims (6)

[Claims] 1. A method for molding a resin molded article having a treatment sheet layer bonded to a surface thereof, comprising: a pair of metal members each of which has a band-shaped continuous body partially or entirely having a predetermined portion to be a treatment sheet layer. It is conveyed between the molds, the above-mentioned predetermined portion is positioned in the mold forming portion, the band-shaped continuous body is sandwiched between the molds, and the molten resin is interposed between the sandwiched band-shaped continuous body and one of the mold forming portions. Inject and mold the resin molded product,
The molded article is joined to the predetermined portion, and after the resin is cured, the mold is opened, and the molded resin molded article is taken out from the mold forming portion while remaining on the belt-shaped continuous body by the above-described joining. And transporting the resin molded product remaining on the continuous body from between the molds, and thereafter, separating the removed resin molded product from the belt-shaped continuous body integrally with a predetermined portion. Resin molding method. 2. The resin molding method according to claim 1, wherein a strip-shaped sheet made of the same material as the processing sheet layer is used as the strip-shaped continuous body having a predetermined portion serving as a processing sheet layer in the whole. 3. A notch having a predetermined shape is provided at a portion to be joined to a resin molded product.
3. The resin molding method according to 1. 4. The method according to claim 1, wherein the strip-shaped continuous body having a predetermined portion serving as a processing sheet layer in a part thereof is provided with a large number of processing sheet layers releasably provided on a strip-shaped backing sheet. Resin molding method. 5. An apparatus for molding a resin molded article having a treatment sheet layer joined to a surface thereof, comprising: a mold driving means for opening or clamping a pair of molds; When opened, between the molds, a belt-shaped continuous body having a part or the entirety of a predetermined portion serving as a processing sheet layer is conveyed, and a conveyance unit for positioning the predetermined portion in a mold forming part, When the mold is clamped by the driving means, the molten resin is injected between the band-shaped continuous body sandwiched between the molds and any one of the mold molding portions to form a resin molded product. Injection means for joining the molded article and the predetermined portion at the same time as molding, and a resin molded article which remains on the strip-shaped continuous body by the joining and is carried out from between the dies by transporting the strip-shaped continuous body by the transporting means Separating means from the belt-shaped continuum integrally with the predetermined portion Resin molding apparatus, characterized in that. 6. An apparatus for molding a resin molded article having a treated sheet layer joined to a surface thereof, comprising: a mold driving means for opening or clamping a pair of molds; When opened, between the molds, a belt-shaped continuous body having a part or the entirety of a predetermined portion serving as a processing sheet layer is conveyed, and a conveyance unit for positioning the predetermined portion in a mold forming part, Similarly, when the mold is opened by the driving means, a transfer film having a transfer portion of a predetermined pattern to be transferred to the surface of the resin molded product is conveyed between the molds, and the transfer portion is moved to the mold. A second conveying means for positioning the molding part, and a mold resin is injected between the belt-shaped continuous body and the transfer film sandwiched between the molds when the mold is clamped by the driving means. At the same time as molding the resin molded article, the molded article and the predetermined portion And an injection means for transferring the transfer portion to the molded article, and a resin molded article remaining on the belt-shaped continuity by the above-mentioned joining and carried out from between the dies by the transport of the belt-shaped continuity by the transport means. A resin molding apparatus comprising: a predetermined portion and a separating means for separating the belt-shaped continuous body integrally from the predetermined portion.