JPH03274122A - Carrying-in device for solid resin in forming mold device of resin - Google Patents

Abstract

PURPOSE:To shorten a molding cycle and to enhance productivity by heating solid resin at the prescribed temp. by a preheating mechanism of resin before solid resin is held by a handling mechanism and charged into a mold. CONSTITUTION:After respective tablets 13 projected to the upper part of a magazine are pinched by closing the interval of a pair of pinching pawls 12, a movable frame 1 is moved to the left and the tablets 13 is positioned to the upper part of a tablet housing box 29. In this case, in a state wherein a cover body 31 is opened, a handling main body 10 is lowered and the tablets 13 are placed into the housing box 29. This housing box 29 is closed by the cover body 31 and the tablets 13 are preheated by a high-frequency heater. When preheating is completed, the cover body 31 is opened. Moreover in a state wherein a pair of pinching pawls 12 of a second handling main body 14 are opened, 5 pieces of tablets 13 are positioned in the side part. After the respective tablets 13 are pinched, these are positioned in the upper parts of respective pots. Furthermore the handling main body 14 is lowered and the tablets 13 are charged into the respective pots.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention supplies a solid resin to a pot provided in a mold, melts the solid resin, and then extrudes the molten resin with a movable body. The present invention relates to a resin molding device for molding a resin molded product by supplying the resin into a cavity formed in the mold, and relates to a solid resin loading device that heats the solid resin in advance and then loads it into a pot in the mold.

[Conventional technology]

Generally, using a transfer molding machine, e.g.
When insert molding a resin package for sealing a chip, etc., a cylindrical solid resin is loaded into a pot formed in a mold, the solid resin is heated and melted, and then extruded by a movable body. A resin package is molded by supplying molten resin into the cavity.

[Problem to be solved by the invention]

However, in the conventional transfer molding machine mentioned above, it is necessary to heat the solid resin at room temperature to a molten state in the pot of the mold, so it takes time to obtain the molten resin, resulting in a molding cycle There is a problem that the process becomes long and productivity is poor.

The present invention has been made in view of the above circumstances, and its purpose is to heat the solid resin in a separate location and then charge it into the pot, thereby heating the resin in a molten state in the pot. It is an object of the present invention to provide a solid resin loading device in a resin molding mold device that can be obtained in a short time, shorten the molding cycle, and improve productivity.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a handling mechanism that supports and loads solid resin into a pot of a mold, and a resin preheating mechanism that preheats the solid resin being transferred by this handling mechanism. It's a small thing.

[Effect]

In the solid resin loading device in the resin molding mold device of the present invention, the solid resin is heated to a predetermined temperature by the resin preheating mechanism before being supported by the handling mechanism and loaded into the pot of the mold. I'll keep it.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 3.

In FIG. 1, reference numeral 1 denotes a movable frame assembled into a frame shape, and this movable frame 1 includes the tip of the piston loft of a lateral motion cylinder 2 horizontally attached to the fixed side, and the lateral motion cylinder 2. The tips of horizontal guide shafts 4 that are slidably guided and supported are connected to guide parts 3 installed adjacent to the guide parts 3, and by moving the piston loft of this horizontal movement cylinder 2 forward and backward, the guide parts 3 are installed adjacent to the guide parts 3. A horizontal guide shaft 4 is supported and guided by 3 and slides, and the moving frame 1 is moved horizontally (in the left-right direction in FIG. 1) on a rail (not shown).
It is supposed to move.

A mounting member 6 is attached to the plate 5 on the right side of the moving frame 1 in FIG. A pair of guide parts 8 are attached. A first handling body 10 is attached to the lower end of the piston loft of the lifting cylinder 7 that extends through the mounting member 6 and hangs down, and to the lower end of the guide shaft 9 that is slidably attached to both the guide parts 8. This first handling body 10 is provided with five gripping hands 11 arranged at equal intervals. These pinching hands I! Each pair of clamping claws 12 is provided so as to be openable and closable, and a cylindrical tablet 13 is clamped between each pair of clamping claws 12. In FIG. 1, although not shown, a magazine for storing tablets 13 is disposed below the first handling body 10, and this magazine is arranged in a plurality of cylindrical containers. tablet 1
By holding the tablets 13 in a stacked state and pushing them out from below, - rows of tablets 13 (5 tablets in FIG. 1) are positioned above the opening at the upper end of the container.

At a predetermined distance from the first handling body lO, on the left side in FIG.
A second handling body 14 having a structure similar to that of 0 is arranged. A support arm 15 is attached to this second handling body 14, and an elevating body I6 is attached to the base end of this support arm I5. This elevating body 16 has a stepping motor 17 and a chain 18.
The elevating body 16 has a plate body 20 on the left side in FIG.
A linear guide 22 provided at the tip of the support member 21 that moves along the support member 21 is fitted, and as the stepping motor 17 rotates, the elevating body 16 moves up and down along the linear guide 22. There is. Further, the stepping motor 17. The hole screw shaft 19 and the support member 21 are connected to each other by a connecting member 23, and a moving body 24 is configured by them.

The movable body 24 is attached to a movable portion of a rodless cylinder 26 arranged along a central plate 25, and is moved horizontally (in the vertical direction in FIG. 1) by operating the rodless cylinder 26. ) is supposed to move.

A tablet preheating mechanism 27 shown in FIGS. 2 and 3 is provided below the second handling body 14. As shown in FIGS. Although Fig. 3 is a view taken along the line ■■ in Fig. 2,
The drawing is such that the left side of the drawing corresponds to the upper part of the actual tablet preheating mechanism 27. In the tablet preheating mechanism 27, a tablet storage box 29 is provided at the top of a mechanism main body 28 equipped with a high-frequency heating device, and a lid body 31 is connected to the top of the tablet storage box 29 by a hinge 30 so as to be openable and closable. has been done. The distal end of a connecting rod 33 is rotatably attached to the lid 31 via a link 32, and the base end of the connecting rod 33 is attached to a rotary disk 34.
It is rotatably attached to the outer edge of the Further, this rotating disk 34 is attached to one end of a rotating shaft 36 that is rotatably supported by a bracket 35.
An opening/closing motor 37 is connected to the other end.

In addition, in FIG. 1, the center line Q of the five tablets 13 protruding above the magazine held by the holding hands 11 of the first handling main body IO and the center line Q of the five tablets 13 placed in the two tablet storage boxes are shown. 5 tablets 1
3 (the center line of the second handling main body 14 held by the throat 11)\the center line of the five tablets 13 held by the throat 11) coincide with each other. Also, in Figure 1, the first
The distance between the second handling body and 14 is the second handling body! Five pots formed on the surface of the lower die of the mold are arranged in parallel on the left side of No. 4 and a predetermined distance above.

In the solid resin loading device configured as above,
First, in Figure 1, there is a first handling body above the magazine for storing the tablet 13! Position the five holding hands 11 of O, and hold the tablet 13 in the magazine.
By pushing out from below, 5 tablets 13
is positioned on the magazine (initial state), the piston rod of the elevating cylinder 7 is lowered, and the guide shaft 9 is supported and guided by the guide part 8 and slides, so that both clamping claws of each clamping hand 11 12 are opened, each pair of gripping claws 12 are positioned on the sides of the five tablets 13. Next, by closing the space between each pair of clamping claws 12, each tablet 13 protruding above the magazine is removed.
After gripping, the first handling body lO is raised by the lifting cylinder 7. Subsequently, the piston rod of the horizontal movement cylinder 2 is advanced, and the horizontal guide shaft 4 is supported by the guide part 3 and slides, thereby moving the moving frame l to the left in FIG. 1, and performing the first handling. The tablet 13 held between the holding claws 12 of the main body IO is positioned above the tablet storage box 29. In this case, the lid 31 is kept open by the opening/closing motor 37. In this state, the first handling body 10 is lowered by the lifting cylinder 7, and after placing the tablet 13 held between the gripping claws 12 in the tablet storage box 29, the space between the gripping claws 12 is opened. In this state, the first handling body IO is returned above the magazine by the lifting cylinder 7 and the lateral movement cylinder 2.

On the other hand, for the tablet 13 stored in the tablet storage box 29, the rotating shaft 36 of the opening/closing motor 37 is rotated to rotate the rotating disk 34, thereby lifting the connecting rod 33 to an upper position. As a result, the lid 31 rotates clockwise in FIG. 2 about the hinge 30 via the link 32, and the tablet storage box 29 is closed by the lid 31. Next, the mechanism body 2
The tablet 13 in the tablet storage box 29 is preheated by the high-frequency heating device built into the tablet storage box 29. In this case, since the tablet 13 is high-frequency heated, the tablet 13 is heated from inside, and the second handling body 14 is on standby at a position above the tablet storage box 29.

When the preheating of the five tablets 13 in the two tablet storage boxes is completed, the rotating shaft 36 of the opening/closing motor 37 is rotated to rotate the rotating disk 34, thereby opening the connecting rod 33. This lowers the lifting body 16 to the support arm 15 by opening the lid 31 via the link 32, rotating the stepping motor 17, and rotating the ball screw shaft 19 via the chain 18. At the same time, the supporting member 21 is lowered along the linear guide 22 at the tip thereof. Next, with each pair of gripping claws 12 of the second handling body 14 opened,
A pair of gripping claws 1 are provided on each side of the five tablets 13.
Position 2. Subsequently, after each of the tablets 13 is clamped by closing the gap between each pair of clamping claws 12, the second handling main body 14 is raised by the stepping motor 17.

In this case, simultaneously with the upward conveyance of the preheated tablets 13 by the second handling body 14, the upward conveyance operation of the tablets 13 on the magazine by the first handling body IO is performed as described above. Next, the first handling body 10 is moved by moving the moving frame l to the left in FIG.
The tablets 13 being conveyed by the tablet storage box 29 are located above the tablet storage box 29, and the five tablets 13 being conveyed by the second handling body 14 are positioned to the side of each pot of the lower mold. . continue,
By moving the movable body 24 upward in FIG. 1 using the rodless cylinder 26, the elevating body 16. Support arm 15. The second handling body 14 and each pair of clamping claws 12 of each clamping hand 11 are brought close to the lower mold, and the tablet i3 clamped by each clamping claw 12 is positioned above each pot. Furthermore, the elevating body 16 . Support arm 15. The second handling body 14 is lowered to bring the tablet 13 held between the gripping claws 12 close to each pot, and the gripping claws 12 are opened to load the tablet 13 into each pot.

Next, the second handling body 14 is raised and moved downward in FIG. 1 by the stepping motor 17 and the rodless cylinder 26 to extend the center line Q of the plurality of tablets 13 in FIG. On the line (
(to the left of the extension line). At this time, the tablet storage box 2 of the tablet 13 is held by the first handling body lO.
Since the storage operation in 9 has been completed, the lateral movement cylinder 2
As a result, the moving frame l is moved to the right in FIG. 1 and returned to the above-mentioned initial state.

〔Effect of the invention〕

As explained above, the present invention includes a handling mechanism that supports solid resin and loads it into a pot of a mold, and a resin preheating mechanism that preheats the solid resin being transferred by this handling mechanism. Then, before the solid resin is supported by the handling mechanism and loaded into the pot of the mold, the solid resin is heated to a predetermined temperature by the resin preheating mechanism. After that, the resin can be loaded into the pot, and the resin can be molten in the pot in a short time, thereby shortening the molding cycle and improving productivity.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention,
FIG. 1 is a plan view, FIG. 2 is a side view showing an example of a tablet preheating mechanism, and FIG. 3 is a view taken along the line ■-■ in FIG. lO..First handling body, 14..Second handling body, 27.Tablet preheating mechanism.

Claims (1)

[Claims] Solid resin is supplied to a pot provided in a mold, the solid resin is melted, and then extruded by a movable body to supply the molten resin into a cavity formed in the mold. A resin molding device for molding a resin molded product includes a handling mechanism that supports and loads the solid resin into a pot of the mold, and a resin preheating mechanism that preheats the solid resin being transferred by the handling mechanism. A solid resin loading device in a resin molding mold device, characterized by comprising: