KR102325516B1 - Work carry-in device, work take-out device, molding die and resin molding apparatus having the same - Google Patents

Abstract

[Project] To provide a workpiece carrying device that can position and deliver a workpiece and/or resin to a molding die with a simplified mold configuration.
[Solution means] When transferring the work W to the work set concave portion 3g provided on the side of the port block 3a installed so as to be able to move up and down on the lower die clamp surface of the molding die 1, the work holding part ( 4d) holds the work W and delivers it to the work set concave 3g by bringing it close to each other to a position overlapping in plan view between the pot block 3a and the work set concave 3g in the raised position.

Description

WORK CARRY-IN DEVICE, WORK TAKE-OUT DEVICE, MOLDING DIE AND RESIN MOLDING APPARATUS HAVING THE SAME

The present invention relates to a work loading device for loading a workpiece before molding and a molding resin into a molding die, a resin loading device for unloading a workpiece and unnecessary resin after molding from a molding mold, a molding die, and a resin molding device having any one of these it's about

When the above-described workpiece is loaded into the molding die and the outer peripheral edge is clamped and transfer molding is performed, the resin furnace (including runner gates, overflow gates, air vents, etc.) intersects with the ends of the workpiece, so that the molding resin It is easy to leak from the end surface, and there is a possibility that resin burrs may be generated on the surface or the side surface of the workpiece. For this reason, a technique has been proposed in which a port block provided with a port is installed so as to be able to move up and down, and a resin passage (bridge gate: bridge portion) is formed on the block surface while pressing the end of the work with the port block.

For example, in order to prevent the molding resin from flowing into the end face of the work, it is necessary to align the end face of the work with the opposing end face of the mold to eliminate the occurrence of gaps as much as possible. For this reason, a technique has been proposed in which one end face of a strip substrate of a work-in rectangular shape is pushed with a push block and the opposite end face collides with the end face of the port insert and aligns (see Patent Document 1: Japanese Patent Application Laid-Open No. 2015-51557).

Also, a molding die provided with a reciprocating mechanism for reciprocating a semiconductor substrate receiving portion of the molding die from both sides with respect to a gate block position by an air cylinder has been proposed (see Patent Document 2: Japanese Patent Application Laid-Open No. 2015-79864).

Japanese Patent Application Laid-Open No. 2015-51557 Japanese Patent Application Laid-Open No. 2015-79864

In recent years, in order to improve the productivity of a molded article, the apparatus provided with a plurality (for example, three or four) molding die in one resin molding apparatus is increasing. Accordingly, the push block for pushing the substrate end surface disclosed in Patent Documents 1 and 2 and the mechanism for reciprocating the semiconductor substrate receiving portion from both sides with respect to the gate block position tends to complicate the configuration of the molding die, and the manufacturing cost (the cost of the mold chase) is reduced. was rising Moreover, in the apparatus which equips one resin molding apparatus with a plurality (for example, three or four) molding die as in recent years, the total cost was also becoming expensive.

In addition, if a movable part (a push block or a reciprocating mechanism, etc.) is installed in the molding die, if resin leakage or resin flash occurs, resin residue easily enters the movable part, causing malfunction of the movable part. Maintenance work is also very labor intensive. Furthermore, since the molding die has a severe temperature change, deformation or deterioration due to heat is likely to proceed, and there is a fear that the frequency of replacement of parts of the movable part may increase.

The disclosure applied to several embodiments described below has been made to solve the above problems, and its purpose is a work carrying-in device capable of positioning and delivering a work and/or resin to a molding die with a simplified die configuration and a work discharging device, which can avoid the inflow of the molding resin into the end face of the work and further provide a molding die with few malfunctions, and by providing these, resin molding with high molding quality can be realized with reduced cost It is to provide a resin molding apparatus.

The disclosure related to some embodiments described below includes at least the following configuration.

That is, it is a workpiece loading device for loading a workpiece and a molding resin into a mold-opened molding die, and a loading device main body for loading the workpiece with respect to a workpiece mounting unit provided on the side of a port block installed on the mold clamp surface of the molding mold so as to be able to move up and down. and a resin input part installed in the carrying-in device main body and put into the port of the port block while holding the molding resin; A movable work holding unit is provided, and the work holding unit is brought close to each other to a position where it overlaps in plan view between the port block and the work placing unit in an elevated position while holding the work, and delivered to the work placing unit. characterized in that

Thus, while the carrying-in apparatus main body is made to enter into the molding die which opened the mold, and while injecting|throwing-in molding resin into the port of a port block from the resin input part, the work holding part which hold|maintained the workpiece|work before shaping|molding with the port block in a raised position, They are delivered close to each other to the position where they overlap in plan view between the workpiece and the placement unit.

Thereby, since a workpiece holding part is positioned and carried in a workpiece mounting part holding a workpiece so that it may not interfere with a port block, the structure of a molding die can be simplified.

The work holding part is assembled so that a loader hand is slidable with respect to the carrying-in device main body via a slide mechanism, and the loader hand may be provided with opening and closing claws that hold both sides of the rectangular substrate in the width direction.

Thereby, the rectangular board|substrate is pinched|interposed by the opening/closing claw of a loader hand, and it can be gripped reliably, and it can position and slide the workpiece|work mounting part of a molding die by a slide mechanism, and can deliver it.

The said work holding part hold|maintains a pair of work, and you may make it carry in the said pair of work with respect to the work mounting part provided on both sides of the said port block. In this way, a plurality of workpieces can be simultaneously positioned and brought into the workpiece mounting unit.

It is preferable that the resin injecting unit injects the molding resin into the pot when transferring the work held by the pair of work holding units to the mold clamp surface.

As a result, the workpiece loading device supplies the molding resin to the port of the port block in synchronization with the loading of the workpiece into the workpiece mounting unit, so that the workpiece loading operation can be smoothly realized, and the mold closing operation proceeds to transfer the positioned workpiece to the port block. can be inserted by

In the resin molding apparatus provided with any one of the above-mentioned workpiece|work carrying apparatuses, a mold structure can be simplified, apparatus cost can be made cheap, an operation|movement defect does not generate|occur|produce, and maintenance can also be performed easily.

A workpiece discharging device for discharging a molded workpiece and unnecessary resin from a mold-opened molding die, wherein the molded workpiece supported by the workpiece mounting portion of the molding die and the unnecessary resin supported by the pot block are separated from the molded workpiece and a discharging apparatus main body for discharging the unnecessary resin; an unnecessary resin recovery unit provided in the discharging apparatus main body to retain the unnecessary resin remaining on the port block; and a workpiece recovery part capable of folding and retracting from the side of the unnecessary resin recovery part while maintaining The workpiece recovery unit is spaced apart from each other to a position where it does not interfere with the port block, characterized in that it carries out the workpiece after the molding.

In this way, the discharging device main body is brought into the mold opening mold, and the unnecessary resin recovery section holds the unnecessary resin supported by the port block, and the workpiece recovery section holds the workpiece after molding and mutually up to a position where it does not interfere with the port block. The workpiece is removed after forming by separating it.

Thereby, since the workpiece|work recovery part carries out hold|maintaining the workpiece|work after shaping|molding so that it may not interfere with a port block, the structure of a molding die can be simplified.

The said work collection part may be made to hold|maintain and carry out a pair of work from the work mounting part provided on both sides of the said port block. Thereby, the some workpiece|work after shaping|molding can be carried out simultaneously from the workpiece|work mounting part.

In the resin molding apparatus provided with any one of the above-mentioned work discharging apparatuses, the mold structure can be simplified, the apparatus cost can be made low, operation|movement malfunction does not generate|occur|produce, and maintenance can also be performed easily.

A molding die to which a work and a molding resin are supplied by a work loading device between the molds opened, a first die in which a cavity concave portion and a resin furnace connected thereto are covered with a release film, and a port into which the molding resin is put and a second mold having an insert having a port block having a port block and an insert having a work placing unit on both sides of which the work carried in by the work carrying device is positioned and placed, wherein the port block is always a clamp surface of the second mold The port block is pushed down to the first mold by mold closure, and the workpiece is biased in a direction away from It is characterized in that it is clamped between the.

In this way, the workpiece carried in by the workpiece loading device to the workpiece placement part of the second mold among the mold-opened molding molds is positioned, and the port block is pushed down to the first mold by mold closure, spanning the end of the workpiece and connecting with the insert. Since it is clamped between have.

It is preferable that the auxiliary pin biased toward the work is protruded so that the auxiliary pin biased toward the work can collide with the substrate surface other than the resin encapsulation area of the work through the release film by mold opening in the one mold.

As a result, when the mold is opened, the auxiliary pin hits the substrate surface other than the resin encapsulation area of the work with the release film interposed therebetween. By this pressing, the resin sealing part and the release film shape|molded in the cavity recessed part become easy to release.

In the said workpiece|work mounting part, the positioning pin which is positioned by fitting with the some pilot hole provided in the said workpiece|work may be provided in several places.

Thereby, the workpiece|work transmitted to a workpiece|work mounting part can be positioned, without position shift.

A plurality of supports for placing the workpiece on the work mounting unit by protruding from the second mold surface at the time of mold opening to support the work, and retracting from the work mounting unit into the second die together with the closing of the mold. A pin may be provided.

Thereby, in the mold opening state, since the support pin protrudes from the 2nd mold surface in the workpiece|work mounting part, it can open and close with the workpiece|work carrying-in apparatus hold|maintaining both sides by the opening/closing claw, and can transmit it over the support pin. In addition, when the mold is closed, the support pin is retracted into the second mold, whereby the work can be placed on the work mounting unit.

The work mounting portion may be provided with an escape groove for avoiding interference with the opening and closing claws that grip the work when carrying in the work before forming or discharging the work after forming.

Thereby, even if the support pin is not provided in the work mounting part of the 2nd mold, even if the opening/closing claw for gripping the work is opened and closed, interference by the escape groove is avoided, and thus the work can be transferred or received.

The first mold may include a pair of cavity concave portions connected by a resin furnace, and the second mold may include a pair of inserts on both sides of the port block having workpiece placing portions on which the workpiece is positioned and placed. Thereby, a plurality of workpieces can be simultaneously carried into the molding die and positioned for resin molding.

In the resin molding apparatus provided with any one of the molding die described above, it is possible to realize resin molding with high molding quality while suppressing the apparatus cost.

It is possible to provide a workpiece loading device and a workpiece discharging device capable of positioning and delivering a workpiece and a molding resin to a molding mold with a simplified mold configuration.

In addition, it is possible to avoid the inflow of the molding resin to the end face of the work, and furthermore, it is possible to provide a molding die with few malfunctions.

Moreover, by providing these, the resin molding apparatus which implement|achieves resin molding with high molding quality by suppressing cost can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is process explanatory drawing which shows the metal mold|die carrying-in operation|movement of a workpiece|work and molding resin by a workpiece|work carrying-in apparatus.
FIG. 2 is a process explanatory diagram showing the operation of carrying in a mold of a work and molding resin following FIG. 1. FIG.
FIG. 3 is a process explanatory diagram showing the operation of carrying in a mold of a work and molding resin following FIG. 2 .
FIG. 4 is a process explanatory diagram showing the operation of carrying in a mold of a work and molding resin following FIG. 3 .
FIG. 5 is a process explanatory diagram showing the operation of carrying in a mold of a work and molding resin following FIG. 4 .
It is a bottom view of a workpiece|work carrying-in apparatus.
It is explanatory drawing of the resin molding process by a molding die.
FIG. 8 is an explanatory view of a resin molding process following FIG. 7 .
Fig. 9 is an explanatory view of a resin molding process following Fig. 8;
FIG. 10 is an explanatory view of a resin molding process following FIG. 9 .
11 is an explanatory view of a resin molding process following FIG. 10 .
Fig. 12A is a plan view of the upper die, and Fig. 12B is a plan view of the lower die.
It is process explanatory drawing which shows the metal mold|die carrying out operation|movement of the molded article and unnecessary resin by a workpiece|work carrying apparatus.
Fig. 14 is a process explanatory diagram showing the mold taking out operation of the molded article and unnecessary resin following Fig. 13;
Fig. 15 is a process explanatory diagram showing the operation of discharging the molded article and unnecessary resin following Fig. 14;
Fig. 16 is a process explanatory diagram showing the mold taking out operation of the molded article and unnecessary resin following Fig. 15;
17 is a process explanatory diagram showing the operation of loading a work and molding resin into a molding die according to another example by a work carrying-in device.
Fig. 18 is a process explanatory diagram showing the operation of carrying in the work and molding resin following Fig. 17;
Fig. 19 is a process explanatory diagram showing the operation of carrying in the work and molding resin following Fig. 18;
Fig. 20 is a process explanatory diagram showing the operation of carrying in the work and molding resin following Fig. 19;
21 is an explanatory view of a resin molding process by a molding die according to another example.
Fig. 22 is an explanatory view of a resin molding process following Fig. 21;
FIG. 23 is an explanatory view of a resin molding process following FIG. 21 .
24 is a plan layout view of the lower mold.
25 is a plan layout view of the resin molding apparatus.

(Form for implementing the invention)

EMBODIMENT OF THE INVENTION Hereinafter, the work carrying-in apparatus which concerns on this invention, the work carrying-out apparatus, a molding die, and suitable embodiment of the resin molding apparatus provided with these are demonstrated in detail with attached drawing. In addition, when referring to a molding die, it shall refer to the upper die and the lower die respectively supported by the mold base, it shall call what is called a chase, and shall point out the thing except the die opening/closing mechanism (press apparatus). In addition, when referring to a resin molding apparatus, it is an apparatus equipped with at least a molding die and a mold opening and closing mechanism (for example, an electric motor and a press device such as a screw shaft or a toggle link mechanism; not shown) for opening and closing the mold, and for automation, a workpiece And it is an apparatus provided with the conveyance apparatus of resin, the workpiece|work (molded article) after shaping|molding, and the conveyance apparatus of unnecessary resin. A work is a rectangular or strip shape, such as a lead frame or a multi-layer board, and is abbreviated as a square board|substrate hereafter. In the case of transfer molding, it is assumed that a transfer mechanism that operates a plunger inserted into the port, and a pressure reduction mechanism that forms a reduced pressure space in the mold when the mold is closed are provided. Hereinafter, the configuration of the molding die will be mainly described. In addition, the work W assumes the case where the rectangular board|substrate on which the chip|tip was mounted is resin-molded. The molding die is described as an example in which the lower mold is a movable mold and the upper mold is a fixed mold.

(Molding mold)

First, the structure of the work carrying-in apparatus used in the resin molding apparatus and carrying in the work and molding resin into the molding die, and the workpiece carrying-out apparatus for carrying out the workpiece and unnecessary resin after molding from the molding die together with the configuration of the molding die.

First, the configuration of the molding die 1 will be described with reference to FIGS. 7 and 12 .

With respect to a pair of mold-opened upper die 2 (first die) and lower die 3 (second die), a work W (for example, a rectangular substrate) and a molding resin by a work loading device to be described later. (R1) (eg, tablet resin) is supplied.

As shown in Fig. 12A, the upper die 2 is formed of a resin furnace including an upper die cavity concave portion 2a on the upper die clamp surface and an upper die curl 2b and an upper die runner gate 2c connected thereto. have.

As shown in Fig. 7, the upper die clamp surface is covered with the release film F including the cavity concave portion 2a and the resin furnace. The release film (F) is, for example, a film material having heat resistance of about 50 µm in thickness, which is easily peeled off from the mold surface, and has flexibility and extensibility, for example, PTFE, ETFE, PET, FEP. A film, a fluorine-impregnated glass cloth, a polypropylene film, a single-layer or a multi-layer film containing polyvinylidene chloride as a main component is preferably used. Even if the release film F is a sheet film, even if it is a long film wound between rolls, any may be sufficient as it.

Moreover, as shown in FIG. 12A, in the area enclosed by the workpiece|work outline L1 and the package part (resin sealing part) outline L2 which intersect the upper mold runner gate 2c of the upper mold 2, there is a plurality of The auxiliary pin 2d is provided so as to be able to hit the substrate portion other than the resin sealing area of the work W with the release film F interposed therebetween. As shown in FIG. 7 , the auxiliary pin 2d is provided with an elastic member provided in the upper die 2 with a constant bias in the direction protruding from the upper die clamp surface. The plurality of auxiliary pins 2d are provided so that the auxiliary pins 2d hit the work W (substrate portion) by mold opening to promote release and gate break from the cavity concave portion 2a of the package portion, and , to be retracted into the upper mold 2 by mold closing.

In FIG. 7 , a port block 3a and a lower die insert 3b are provided in the central part of the lower die chase block (not shown) in the width direction of the lower die 3 . In the port block 3a, the port 3e is fitted concentrically. The port block 3a and the port 3e are biased upward with respect to the lower die insert 3b so as to always be spaced apart from the lower die clamp surface by the coil spring 3c.

As shown in Fig. 12B, the top surface of the port block 3a has a cross-linking portion 3d that forms a resin path together with the opposing upper type curl 2b and the upper type runner gate 2c of the port block 3a. It is installed protruding on both sides. As shown in Fig. 7, the outer periphery of the bridge 3d is formed so that the plate thickness becomes gradually thinner, the tip extends to the cavity surface, and the end of the work W is spread over the substrate surface to press the substrate surface. In addition, the space part between the bridge parts 3d of the port block 3a becomes the escape space S of the opening/closing claw 4g of the loader hand 4f which grips the workpiece|work W mentioned later. In the through hole 3e1 of the port 3e, a plunger 3f is provided so as to be able to move up and down by a drive source (not shown). Molding resin R1 (for example, tablet resin) is injected|thrown-in into the pot 3e by the loader 4 mentioned later.

As shown in FIG. 7, the workpiece|work set recessed part 3g (workpiece mounting part) in which the workpiece|work W is mounted is cut in the upper surface of the lower mold|type insert 3b. The depth of the work set recessed part 3g corresponds to the plate|board thickness equivalent of the work W.

As shown in Fig. 12B, a plurality of suction holes 3h for sucking and holding the workpiece W along the imaginary line L4 inside the outline L3 of the workpiece concave portion 3g are provided at equal intervals. It is arranged to rotate.

Moreover, in the work area enclosed by the virtual line L4 in which the some suction hole 3h was provided, the some support pin 3i is arrange|positioned so that it can hold|maintain the work W, and is provided so that raising/lowering is possible. The plurality of support pins 3i are provided on, for example, a lower die base (not shown), and when the lower die 3 is lowered when the die is opened, it protrudes from the work set concave portion 3g to support the work W. Then, when the lower die 3 rises due to mold closing, it is retracted from the work set concave portion 3g into the lower die 3 so that the work W can be placed in the work set concave portion 3g.

In addition, as shown in Fig. 12B, in the area overlapping the bridge portion 3d of the port block 3a of the work set recessed portion 3g, pilot pins 3j are protruded at a plurality of locations along the length of the work piece. has been A pilot hole Wh (refer to Fig. 5) into which the pilot pin 3j enters is provided in the work W along the long side of the port, and an escape hole for the pilot pin 3j is also formed in the upper die 2 . The workpiece W carried over the lower mold 3 by the loader 4 to be described later has the pilot hole Wh aligned with the pilot pin 3j and fitted, so that the workpiece W is moved into the workpiece concave portion ( 3g) is positioned and placed.

As shown in Fig. 7, the port block 3a and the port 3e are biased in a direction spaced apart from the clamp surface of the always lower mold 3 by a coil spring 3c, and a workpiece carrying device (described later) ( The work W positioned and placed in the work set concave portion 3g by the loader 4) is pushed down by the mold closing by the port block 3a to the upper die 2, and the end of the work is placed over the lower die insert 3b. ) is clamped between

(loader mechanism)

Next, an example of the loader 4 (workpiece carrying-in apparatus) which carries in the workpiece|work W and the molding resin R1 into the molding die 1 is demonstrated with reference to FIG.1 and FIG.6.

As shown in FIG. 1, the loader 4 carries in the workpiece|work W and the molding resin R1 into the molding die 1 (lower die 3) which mold-opened. While the loader main body 4a moves in the X-Y direction in a horizontal plane, it is provided with respect to the lower mold|type clamp surface of the lower mold|type 3 so that raising/lowering is possible. The workpiece W is positioned with respect to the port block 3a provided in the lower mold 3 and the workpiece set recesses 3g disposed on both sides thereof.

As shown in FIG. 6 , the resin input part 4b injected into the port 3e of the port block 3a while holding the molding resin R1 (eg, tablet resin) in the loader body 4a. ) is installed. The resin pouring part 4b accommodates and transports the molding resin R1 in a cylindrical container, and the shutter 4c provided at the bottom of the container is opened and closed to put the molding resin R1 into the port 3e. . Further, in Fig. 1 , a pair of work holding portions 4d capable of folding while holding the work W (eg, a rectangular substrate) are provided on both sides of the resin input portion 4b. The pair of work holding parts 4d is assembled so that the loader hand 4f can slide with respect to the loader main body 4a via the slide mechanism 4e. As the slide mechanism 4e, for example, a rodless cylinder is used, and the pair of loader hands 4f can move simultaneously in a direction adjacent to and separated from each other in the left-right direction in FIG. 1 . Further, each loader hand 4f is provided with a pair of opening and closing claws 4g that can be opened and closed for holding both sides of the work W (eg, a rectangular substrate) in the width direction. The opening/closing claw 4g is opened and closed via a link mechanism that opens and closes by, for example, a cylinder drive (not shown).

As shown in FIG. 1, the work holding part 4d is mutually up to the position which overlaps in plan view between the pot block 3a and the work set recessed part 3g which are in a raised position with the workpiece|work W held. It is adapted to be delivered to the plurality of support pins 3i protruding from the work set concave portion 3g in proximity to each other. In this way, the loader main body 4a is made to enter the mold opening 1, and the molding resin R1 is put into the port 3e of the port block 3a from the resin input part 4b. , the pair of workpiece holding parts 4d holding the workpiece W before molding are brought close to each other to the position where they overlap in plan view between the pot block 3a in the raised position and the workpiece concave part 3g, and the lower mold (3) is forwarded. The resin input unit 4b preferably injects the molding resin R1 into the port 3e when transferring the work W held by the pair of work holding units 4d to the lower mold 3 .

Thereby, the loader 4 supplies the molding resin R1 to the port 3e of the port block 3a by matching the timing of carrying in the workpiece|work W of the workpiece|work set recessed part 3g, and a workpiece|work carrying-in operation. can be realized smoothly, and the workpiece W positioned by advancing the mold closing operation can be sandwiched by the bridge portion 3d of the port block 3a.

In addition, the work holding part 4d slides by the slide mechanism 4e while holding the work W so as not to interfere with the port block 3a, and is positioned and carried in the work set recessed part 3g, so that the molding is carried out. The configuration of the mold 1 can be simplified.

(unloader mechanism)

Next, an example of the unloader 5 (workpiece carrying-out apparatus) which carries out the workpiece|work W (molded article) and unnecessary resin R2 after shaping|molding to the molding die 1 is demonstrated with reference to FIG.

As shown in Fig. 13, the unloader 5 unloads the molded workpiece W (molded product) and the unnecessary resin R2 from the molding die 1 (lower mold 3).

After resin molding, when the molding die 1 is mold-opened, the molded workpiece W is supported by the support pins 3i protruding from the workpiece set recess 3g of the molding die 1, and from the lower mold clamp surface. The unnecessary resin R2 supported by the separated port block 3a is in a separated state. (It will be described later in the operation after mold molding.) In this state, the unloader body 5a enters the molding die 1 . Then, the workpiece (W) and unnecessary resin (R2) (molded product color runner) are unloaded. The unloader main body 5a is provided with the curl holding block 5b (unnecessary resin recovery part) which collect|recovers unnecessary resin R2 from the pot block 3a while holding unnecessary resin R2. The curl holding block 5b is suspended and supported by a coil spring 5c with respect to the unloader body 5a. The curl holding block 5b presses down the molded product curler R2 with a suction pad 5b1 provided at the lower end to hold it by suction. In addition, although this embodiment holds the unnecessary resin R2 by the suction pad 5b1, it is not necessarily necessary to use the suction pad 5b1, and the curl holding block 5b is unnecessary with an opening and closing claw (not shown). You may make it hold|maintain resin (R2).

Further, on both sides of the curl holding block 5b, a pair of workpiece recovery portions 5d capable of folding while holding the molded workpiece W (molded product) are provided. The pair of work collection parts 5d is assembled so that the unloader hand 5f is slidable with respect to the unloader main body 5a via the slide mechanism 5e. As the slide mechanism 5e, for example, a rodless cylinder is used, and the pair of unloader hands 5f can be moved simultaneously in the direction adjacent to and spaced apart in the left-right direction in FIG. 13 . Further, each unloader hand 5f is provided with open/closeable claws 5g that hold both sides in the width direction of the work W (for example, a rectangular substrate) so as to be able to open and close. The opening/closing claw 5g is opened and closed via a link mechanism that opens and closes by, for example, a cylinder drive (not shown).

The curl holding block 5b holds the unnecessary resin R2, the work recovery section 5d holds the work W after molding from the work set recess 3g of the lower die 3, and a pair of The work collection part 5d separates the work W and the port block 3a to a position where they do not interfere with each other, and carries out the work W after shaping|molding.

In this way, the unloader main body 5a is brought into the mold opening 1, and the curl holding block 5b sucks and holds the unnecessary resin R2 supported by the port block 3a, and a pair While holding the workpiece W after molding, the workpiece recovery unit 5d of the shovels the workpiece W after molding by separating it from each other by the slide mechanism 5e to a position where it does not interfere with the port block 3a. As a result, the workpiece recovery section 5d unloads the molded workpiece W from the workpiece concave portion 3g while holding the molded product so as not to interfere with the port block 3a, so the configuration of the molding die 1 is can be simplified.

(loader action)

Here, an example of the molding operation|movement of a resin molding apparatus is demonstrated together with the workpiece|work carrying-in/out operation to a molding die. First, the work carrying-in operation|movement by the loader 4 is demonstrated with reference to FIGS. 1-5.

In FIG. 1, the workpiece|work W (square board|substrate) and the molding resin R1 are carried in to the lower mold|die 3 which opened the mold. The lower mold 3 has a port block 3a and a port 3e biased by a coil spring 3c so that it is in an elevated position above the lower mold clamp surface (the lower mold insert 3b upper surface), and from the work set recess 3g The support pin 3i is in a protruding state.

The loader 4 holds the molding resin R1 in the resin pouring part 4b, and a pair of work holding parts 4d are spaced apart from each other from the resin pouring part 4b by the slide mechanism 4e ( The loader hand 4f is held at the left and right position), and the opening and closing claw 4g enters the molding die 1 while holding both sides of the workpiece W (square substrate) in the short direction.

In Fig. 2, the loader 4 descends and the work W held by the loader hand 4f is loaded onto the plurality of support pins 3i protruding above the work set recess 3g. The opening/closing claw 4g is in a state holding the work W in a closed state.

In Fig. 3, the slide mechanism 4e is actuated to slide the pair of loader hands 4f in a direction close to the resin pouring portion 4b. At this time, since the opening and closing claw 4g is located between the bridge parts 3d in plan view, it does not interfere with the port block 3a, and the upper surface height of the work W is lower than the lower surface of the bridge part 3d. In order to become a position, it slides so that the front-end|tip of the workpiece|work W may enter under the bridge part 3d. Further, since the resin pouring portion 4b is located directly above the port block 3a, the shutter 4c is opened to inject the molding resin R1 (tablet resin) into the port 3e.

In Fig. 4, the opening/closing claw 4g of the loader hand 4f is opened to deliver the work W (square substrate) onto the support pin 3i. At this time, the pilot hole Wh of the workpiece W and the pilot pin 3j of the lower die 3 are aligned. Since the opening/closing claw 4g is disposed in the escape space S (see Fig. 12B) of the port block 3a in plan view, it does not interfere with the bridge portion 3d.

In FIG. 5 , when the loader 4 delivers the work W to the lower die 3 , the loader body 4a rises and is retracted from the molding die 1 . In addition, since the loading into the molding die 1 of the workpiece W and the molding resin R1 is completed, the die closing operation of the molding die 1 proceeds. That is, since the lower mold 3 starts to rise, the support pin 3i is relatively lowered, and the pilot pin 3j is fitted into the pilot hole Wh to insert the workpiece W into the work set recess 3g. location is determined and placed.

Further, since air suction is started in advance from the suction hole 3h provided in the work set concave portion 3g or air is sucked after the work is placed, the work W is positioned and fixed in the work set concave portion 3g.

In this way, the work W carried in by the loader 4 into the work set concave portion 3g of the lower die 3 among the mold-opened molding die 1 is positioned, and the port block 3a by die closing ) is pushed down by the upper die 2 and clamped between the lower die insert 3b, the configuration on the die side is simplified, the die cost is reduced, and the inflow of the molding resin (R1) into the end surface of the workpiece is avoided. This makes it difficult to cause malfunctions in the mold, and maintenance can be performed easily.

(Molding mold operation)

Next, the resin molding operation by the molding die 1 will be described with reference to FIGS. 7 to 11 . Fig. 7 shows a state in which the work W is set in the work set recess 3g of the lower mold 3, and the tablet resin R is loaded in the pot 3e. The port block 3a and the port 3e are biased to the coil spring 3c in the raised position. Moreover, the release film F adsorb|sucks and hold|maintains the clamp surface of the upper die 2, and the auxiliary pin 2d protrudes from the upper die clamp surface so that the release film F may be pushed down.

When the mold closing operation proceeds and the upper mold 2 collides with the port block 3a, the port block 3a and the port 3e are pushed down against the bias of the coil spring 3c. And as shown in FIG. 8, when the lower die 3 and the upper die 2 are mold-closed, the port block 3a and the port 3e are in a state clamped to the upper die 2 and the lower die 3 . At this time, the bridge part 3d provided in the pot block 3a spans the outer peripheral edge of the workpiece W positioned in the workpiece concave part 3g, and presses the workpiece upper surface (substrate surface). Thereby, between the upper die curl 2b, the upper die runner gate 2c, and the upper end surface of the port block 3a (the upper surface of the bridge 3d), the resin communicating with the upper die cavity concave portion 2a is formed in a plurality of places (five places in Fig. 12). Further, the auxiliary pin 2d (refer to Fig. 7) protruding from the upper die 2 collides with the substrate surface of the opposite work W and is pushed back.

In Fig. 9, a heater (not shown) is built in the molding die 1, and the molding resin R1 melted in the pot 3e is raised by the plunger 3f, and the upper die curl 2b, It is filled in the upper die cavity concave portion 2a via a resin path between the upper die runner gate 2c and the upper end surface of the port block 3a. The molding resin R1 filled in the upper die cavity concave portion 2a is heat-cured (cure).

In Fig. 10, the molding die 1 is mold-opened. At this time, as the lower die 3 is lowered while the work W is adsorbed and held in the work set recess 3g, the port block 3a and the port 3e biased by the coil spring 3c rise relatively. . Thereby, the package part PK (resin sealing part) of the workpiece|work W (molded article) after shaping|molding and the unnecessary resin R2 (molded article color runner) formed on the pot block 3a perform a gate break. In addition, the auxiliary pin 2d protrudes from the upper die 2 and presses the substrate surface of the work W, so that the upper die cavity concave portion 2a covered with the package portion PK and the release film F is easily released. do.

Next, in Fig. 11, when the mold opening proceeds, the support pins 3i protrude from the work set concave portion 3g, so that the work W is pushed up from the work set concave portion 3g. As a result, the workpiece W is in a state in which the pilot pin 3j is protruded from the pilot hole Wh. In addition, the air suction of the suction hole 3h provided in the work set recessed part 3g may be continued, or you may stop with mold opening.

(unloader action)

Finally, the work carrying out operation|movement by the unloader 5 is demonstrated with reference to FIGS. 13-16. In Fig. 13, the unloader 5 enters the mold opening 1 of the molding die. The lower mold 3 has a port block 3a and a port 3e biased by a coil spring 3c so as to be in an elevated position from the lower mold clamp surface (the lower mold insert 3b upper surface), and from the work set recess 3g. The support pin 3i is in a protruding state. Therefore, the workpiece W (molded product) after molding and the unnecessary resin R2 (molded product color runner) are in a separated state. In the unloader 5, the unloader hand 5f is held at a position (a position approaching the center) in which a pair of workpiece recovery parts 5d are adjacent to each other to the curl holding block 5b by a slide mechanism 5e, , the opening and closing claws 5g enter the molding mold 1 in an open state.

14, the unloader 5 descends, and the opening and closing claws 5g of the unloader hand 5f enter both sides of the work W supported by the support pin 3i. At this time, since the opening and closing claws 5g are located between the bridge parts 3d, they do not interfere with the port block 3a. Then, the work W is gripped by closing the opening and closing claws 5g. Further, in the curl holding block 5b, the unnecessary resin R2 is adsorbed and held because the suction pad 5b1 is depressed by the unnecessary resin R2 (molded product curler).

In Fig. 15, the slide mechanism 5e is actuated to slide the pair of unloader hands 5f in the direction (left and right both sides) separated from the curl holding block 5b, respectively.

In Fig. 16, the unloader 5 raises the unloader body 5a while holding the molded workpiece W (molded product) and the unnecessary resin R2 (molded product color runner) from the molding die 1 evacuate

The unloader 5 transfers the molded product to the molded product storage unit, and collects the unnecessary resin R2 to the scrap box, thereby terminating a series of resin molding operations.

As the resin molding apparatus 6 provided with the above-mentioned molding die 1, the loader 4, and the unloader 5, it is applicable to an apparatus as shown to the planar layout of FIG. 25, for example.

In Fig. 25, it is a module type resin molding apparatus 6 in which a single or a plurality of press parts 6c are connected by being sandwiched between a work and resin supply part 6a and a molded product and an unnecessary resin accommodating part 6b. The loader 4 reciprocates between the work and resin supply section 6a and the press section 6c, and the unloader 5 moves between the press section 6c and the molded product and the unnecessary resin storage section 6b. reciprocating motion In addition, although not shown, the loader 4 and the unloader 5 follow the moving rail provided in common to the supply part 6a of a workpiece and resin, the press part 6c, and the accommodating part 6b of a molded product and unnecessary resin. You may make it reciprocate, and you may make it reciprocate along individual moving rails.

(Other Example 1)

Next, another embodiment of the molding die 1 will be described with reference to FIGS. 17 to 24 . Since the structure of the loader 4 and the unloader 5 is the same, the same number is attached|subjected to the same member, and description shall be invoked.

As shown in Fig. 17, the lower die 3 is provided with a plurality of support pins 3i protruding from the work set recessed portion 3g. However, in order to simplify the mold structure, a plurality of support pins 3i are provided. It is also possible to omit . The structure in which the suction hole 3h which sucks the workpiece|work W is provided in the work set recessed part 3g is the same.

As shown in FIG. 17, in the upper surface of the lower mold|type insert 3b, the workpiece|work set recessed part 3g (work mounting part) in which the workpiece|work W is mounted is cut. The depth of the work set recessed part 3g corresponds to the plate|board thickness equivalent of the work W.

24 is a plan layout view of the lower mold 3 . On the outline L3 of the work set recessed part 3g, the escape recesses 3k of the opening and closing claws 4g are located at positions not interfering with the bridge parts 3d provided in the port block 3a, left and right 4 pairs each. installed on site. The escape concave portion 3k is formed so as not to interfere with the opening and closing claws 4g of the loader 4 and the opening and closing claws 5g of the unloader 5 when the workpiece W is transferred between the lower mold 3 and the lower mold 3 . In order to do this, a pair of left and right opening and closing claws (4g, 5g) are installed corresponding to the arrangement. A plurality of suction holes 3h for sucking and holding the work W along the virtual line L4 inside the outline L3 of the work set recessed portion 3g are arranged so as to go around at equal intervals.

Hereinafter, the work carrying-in operation|movement by the loader 4, the resin molding operation|movement by the molding die 1, and the workpiece|work carrying-out operation|movement by the unloader 5 are demonstrated centering on a different point. In addition, the work carrying-in operation|movement to the lower mold|type 3 by the loader 4 is demonstrated mainly, and the work carrying-out operation|movement by the unloader 5 shall refer to the description of the loader 4. As shown in FIG.

(loader action)

As shown in Fig. 17, first, the loader 4 holds the molding resin R1 in the resin pouring part 4b, and a pair of work holding parts 4d is connected to the resin inputting part by the slide mechanism 4e. The loader hand 4f is held at a position spaced apart from each other (the left and right positions) from (4b), and the opening and closing claws 4g hold both sides of the workpiece W (square substrate) in the short direction. Enter (1). The lower mold 3 has a port block 3a and a port 3e biased by a coil spring 3c, so that the lower mold 3 is in an elevated position above the lower mold clamp surface (the lower mold insert 3b upper surface).

In Fig. 18, the loader body 4a is lowered so that the opening and closing claws 4g of the loader hand 4f hold the work W, and the upper surface of the work W is the bridged portion of the pot block 3a ( 3d), the opening and closing claw (4g) descends until it becomes a lower position. Then, the slide mechanism 4e is actuated to slide the pair of loader hands 4f in a direction to approach the resin pouring portion 4b. At this time, since the opening/closing claw 4g is located between the bridge parts 3d in plan view, it does not interfere with the port block 3a. Further, since the resin pouring portion 4b is located directly above the port block 3a, the shutter 4c is opened to inject the molding resin R1 (tablet resin) into the port 3e.

In Fig. 19, the loader hand 4f is further lowered to lower the opening/closing claw 4g until it enters the escape recessed portion 3k, and the opening/closing claw 4g is opened to insert the workpiece W into the work set recess. pass to part (3g). At this time, the pilot hole Wh of the workpiece W and the pilot pin 3j of the lower die 3 are aligned and fitted. Further, since air suction is previously started from the suction hole 3h provided in the work set recessed portion 3g, the work W is positioned and fixed to the work set recessed portion 3g. As the overall movement of the work W, it moves while drawing an L-shaped, left-right reverse L-shaped trajectory.

In Fig. 20, when the loader 4 transfers the work W to the lower die 3, the loader body 4a rises and moves away from the molding die 1 in the X-Y direction. In addition, since carrying in of the workpiece|work W and the molding resin R1 is completed, the mold closing operation|movement of the molding die 1 advances.

(Molding mold operation)

Next, the resin molding operation by the molding die 1 will be described with reference to FIGS. 21 to 23 . Fig. 21 shows a state in which the work W is set in the work set recess 3g of the lower mold 3, and the tablet resin R1 is loaded in the pot 3e. The port block 3a and the port 3e are biased to the coil spring 3c in the raised position. Moreover, as for the clamp surface of the upper mold|type 2, the release film F is hold|maintained, and the auxiliary pin 2d protrudes from the upper mold|type clamp surface so that the release film F may be pushed down.

A die closing operation advances, and as shown in FIG. 22, the port block 3a and the port 3e will be in the state clamped by the upper die 2 and the lower die 3 . At this time, the bridge part 3d provided in the pot block 3a spans the outer peripheral edge of the workpiece W positioned in the workpiece concave part 3g, and presses the workpiece upper surface (substrate surface). Thereby, between the upper die curl 2b, the upper die runner gate 2c, and the upper end surface of the port block 3a (the upper surface of the bridge 3d), the resin communicating with the upper die cavity concave portion 2a is formed at a plurality of locations (five locations in Fig. 24). Further, the auxiliary pin 2d protruding from the upper die 2 collides with the substrate surface of the opposite work W and is pushed back.

In Fig. 22, a heater (not shown) is built in the mold base and/or the molding die 1, and the molding resin R1 melted in the pot 3e is raised by the plunger 3f, and the upper mold It is filled in the upper die cavity concave portion 2a via a resin path between the curl 2b and the upper die runner gate 2c and the upper end surface of the port block 3a. The molding resin R1 filled in the upper die cavity concave portion 2a is heat-cured (cure).

23, the molding die 1 is mold-opened. At this time, as the lower die 3 is lowered while the work W is adsorbed and held in the work set recess 3g, the port block 3a and the port 3e biased by the coil spring 3c rise relatively. . Thereby, the workpiece W (molded product) after molding and the unnecessary resin (molded product color runner) formed on the pot block 3a perform a gate break. In addition, the auxiliary pin 2d protrudes from the upper die 2 and presses the substrate surface of the work W, so that the package portion P and the upper die cavity concave portion 2a are easily released.

(unloader action)

In the unloader 5, the unloader hand 5f is held at a position (a position along the center) in which a pair of workpiece recovery parts 5d are adjacent to each other to the curl holding block 5b by a slide mechanism 5e, The opening and closing claws 5g enter the molding mold 1 in an open state.

Similarly to the loader 4 shown in Fig. 19, the unloader 5 descends and the opening and closing claws 5g of the unloader hand 5f are placed on both sides of the work W placed in the work set recessed portion 3g. The escape recess 3k is entered. At this time, since the opening/closing claw 5g is located between the bridge parts 3d in plan view, it does not interfere with the port block 3a. Further, since the pair of opening and closing claws 5g enter the escape recess 3k, they do not interfere with the work set recess 3g. Then, the work W is gripped by closing the opening and closing claws 5g. Further, in the curl holding block 5b, the unnecessary resin R2 is adsorbed and held because the suction pad 5b1 is depressed by the unnecessary resin R2 (molded product curler).

In Fig. 16, the slide mechanism 5e is actuated to slide the pair of unloader hands 5f in the direction (left and right both sides) separated from the curl holding block 5b, respectively.

In Fig. 16, the unloader 5 raises the unloader body 5a while holding the molded workpiece W (molded product) and the unnecessary resin R2 (molded product color runner) from the molding die 1 evacuate

In this case, since a plurality of support pins 3i provided in the work set recessed portion 3g of the lower die 3 of the molding die 1 can be omitted, the configuration of the molding die 1 is further simplified to reduce the device cost. resin molding with high molding quality can be realized. In the case of the above embodiment, the work W is slid laterally on the support pin 3i, but in the other embodiment 1, the lateral slide is different in the space above or directly above the work set recess 3g.

(Other Example 2)

In the above embodiment and the other embodiment 1, a pair of workpieces W are arranged so that their long sides face each other on both sides centering on a port block 3a in which a plurality of ports 3e are arranged, but the workpieces ( W) does not need to be two, and it can implement similarly even if it is a case where the work W of 1 sheet is arrange|positioned in the work mounting part arrange|positioned at the side of the pot block 3a.

As described above, the loader body 4a is brought into the molding die 1 opened in this way, and the molding resin R1 is inserted into the port 3e of the port block 3a from the resin input portion 4b. ), a pair of workpiece holding parts 4d holding the workpiece W before molding are placed in a plan view between the pot block 3a and the workpiece concave part 3g in the raised position. Since they are brought close to each other and delivered to the mold clamping surface, the workpiece holding part 4d can be positioned and loaded into the workpiece concave part 3g while holding the workpiece W so as not to interfere with the port block 3a. have. Furthermore, the unloader main body 5a is made to enter the mold opening 3, and the curl holding block 5b (unnecessary resin recovery part) adsorbs the unnecessary resin R1 supported by the pot block 3a. It is possible to carry out the work after forming by keeping the pair of work recovery units 5d apart from each other to a position that does not interfere with the port block 3a while retaining the work W after forming. As described above, the configuration of the molding die 1 can be simplified.

In this way, with respect to the mold-opened molding die 1, the work set concave portion 3g is loaded by the loader 4, the work W is positioned without interfering with the port block 3a, and the work after molding Since (W) and unnecessary resin R2 are taken out from the work set recessed portion 3g by the unloader 5 without interfering with the port block 3a, the mold side configuration is simplified and the mold cost is low. In this way, it is possible to avoid the inflow of the molding resin R1 into the end surface of the work, so that it is difficult to cause malfunction in the mold, and maintenance can be performed easily.

In the resin molding apparatus provided with the molding die 1 described above, it is possible to suppress the apparatus cost and realize resin molding with high molding quality.

In addition, molding resin (R1) is not limited to tablet resin, For example, granular resin, powdery resin, liquid resin, etc. may be supplied.

As for the molding die 1, although the cavity recessed part was formed in the upper mold|die 2, the cavity recessed part may be provided in the lower mold|die 3. As shown in FIG.

W work
Wh pilot hole
R1 Molding Resin
1 Molding mold
2 pictograph
2a upper mold cavity recess
2b hieroglyph curl
2c hieroglyph runner gate
2d auxiliary pin
3 Ha Hyung
3a port block
3b lower type insert
3c coil spring
3d bridge
3e port
3f plunger
3g work set recess
3h suction hole
3i support pin
3j pilot pin
3k escape recess
4 loader
4a loader body
4b Resin inlet
4c shutter
4d work holding part
4e slide mechanism
4f loader hand
4g open and close claws
5 unloader
5a unloader body
5b Curl Retention Block
5b1 suction pad
5c coil spring
5d work recovery unit
5e slide mechanism
5f unloader hand
5g open and close claws
6 Resin molding device
6a Workpiece and resin supply part
6b Receiving part for molded products and unnecessary resin
6c press

Claims (2)

A workpiece discharging device for discharging a workpiece after molding and unnecessary resin from a mold opening mold, comprising:
a discharging device main body for discharging the post-molded work and the unnecessary resin in a state in which the post-molding work supported by the work mounting unit of the molding die and the unnecessary resin supported by the pot block are separated;
an unnecessary resin recovery part installed in the discharging apparatus main body to retain the unnecessary resin remaining on the port block;
and a work recovery unit installed in the discharging device body and capable of collapsing from the side of the unnecessary resin recovery unit while holding the work after molding;
The work recovery unit is assembled so that an unloader hand is slidable with respect to the discharging device main body through a slide mechanism, and the unloader hand is provided with open and close claws that hold both sides of the rectangular substrate in the width direction,
The work recovery unit holds and carries out a pair of works from the work placing units installed on both sides of the port block with the opening and closing claws,
When the work collecting unit holds the post-molding work from the work placing unit with the opening and closing claws and the unnecessary resin collecting unit holds the unnecessary resin, the work collecting unit holds the undesired resin up to a position where it does not interfere with the port block. A workpiece discharging apparatus characterized in that the workpiece is separated from each other and the workpiece after the molding is unloaded. A resin molding device provided with the workpiece discharging device according to claim 1 .

Images