TWI786794B - Resin sealing device - Google Patents

Abstract

The present invention provides a resin sealing device that reduces the work load of a loader before conveying a workpiece to a sealing mold or the time required for preheating the workpiece, thereby improving production efficiency. The workpiece conveying mechanism includes: a first conveying path, a plurality of conveying parts arranged in series; a second conveying path, arranged in parallel with the first conveying path, and a plurality of conveying parts arranged in series; and a conveying path switching mechanism, arranged on the first conveying path The conveyance path on which the mobile body moves is switched between the second conveyance path.

Description

Resin sealing device

The present invention relates to a resin sealing device including a workpiece transfer mechanism capable of supplying workpieces from a workpiece supply unit to a pressing unit.

For example, a resin sealing device that resin-seals a power card such as a power supply substrate as a workpiece requires preheating before loading it into a sealing mold in order to perform rapid sealing because the substrate is thick and large. The loader hand receives the workpiece from the workpiece supply part and places it on the preheating platform to receive the flat resin, receives the preheated workpiece from the preheating platform and moves it into the sealed mold. The loader loads the unformed workpiece (substrate, etc.) and flat resin into the sealed mold, cleans it, and repeats the same operation. After the sealing mold is used for resin sealing, the molded workpiece is carried out from the sealing mold by an unloader, unnecessary resin is separated, and the molded product is stored in the molded product storage section. The loader and the unloader are provided so as to be movable on a common guide rail, and are provided so as to be alternately movable to the sealing mold included in the pressing part (see Patent Document 1).

[Prior art literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. 2008-179025

In the above-mentioned resin sealing device, before loading the pre-molded workpiece into the sealing mold, there are many processing operations of the loader including the preheating of the workpiece, so the processing capacity of the loader is reduced, and it is necessary to carry the workpiece into the sealing mold. time, production efficiency is reduced. In addition, if the work area of the loader increases, the amount of movement of the loader increases, and the size of the device increases accordingly.

In addition, in the case of using a thick workpiece with a large heat capacity, if the workpiece is not preheated, the molding temperature of the sealed mold will drop, so resin sealing will take time and production efficiency will decrease, and if the heat is taken away by the workpiece, the molded product will be damaged. Pores may be generated to degrade the molding quality.

The present invention is made in view of the above circumstances, and an object of the present invention is to provide a resin sealing device that reduces the workload of a loader before conveying the workpiece to the sealing mold or the time required for preheating the workpiece, thereby improving the efficiency. Productivity.

In order to achieve the object, the present invention includes the following structures.

A resin sealing device comprising a workpiece conveyance mechanism capable of reciprocating a moving body on a conveyance path disposed within a moving range of a loader from a workpiece supply part to a press part, and capable of moving from the workpiece supply part to the The pressing part supplies the workpiece, and the resin sealing device is characterized in that the workpiece conveying mechanism includes: a first conveying path, a plurality of conveying parts are arranged in series, and the workpiece is held by a moving body on the conveying part. the loader and carried into the pressing part; the second conveying path is arranged in parallel with the first conveying path, a plurality of conveying parts are arranged in series, and the moving body reciprocates toward the workpiece supply part; and the conveying path switching mechanism, the shift The conveyance path is switched between the first conveyance path on which the movable body moves and the second conveyance path.

According to the above configuration, when the work is supplied to the movable body on the first conveyance path in the press section, the conveyance path of the movable body is switched from the first conveyance path to the second conveyance path by the conveyance path switching mechanism. Thereby, the mobile body can move to the workpiece supply part on the second transport path, receive the next workpiece before forming, and return to the pressing part. In addition, by switching the conveyance path from the second conveyance path to the first conveyance path by the conveyance path switching mechanism, the moving body on which the next workpiece before forming is placed can be returned to the first conveyance path and supplied to the loader. Therefore, it is possible to reduce the work of conveying workpieces before forming by a loader, thereby improving productivity.

The workpiece conveying mechanism may be a belt conveying mechanism, and the belt conveying mechanism includes: a first belt conveying path, a belt module in which a mobile body moves on a surrounding endless belt is arranged in series; The first belt conveyance path is arranged in parallel, and a plurality of belt modules are arranged in series, and the conveyance path switching mechanism transfers the mobile body between the first belt conveyance path and the second belt conveyance path.

Thereby, as for the mobile body, it is only necessary to use the conveyance path switching mechanism to change the load of the mobile body on the first conveyance path and the second conveyance path in which the belt modules are arranged in series. Therefore, the simple structure can reduce the number of loads performed by the loader. Workpiece handling before forming to improve production efficiency.

The workpiece conveying mechanism may be a linear conveying mechanism in which a linear module in which the mobile body automatically walks on the rail portion is arranged in series, and the first conveying path has a plurality of first The first direct moving rail is a first straight moving rail in which the rail parts are detachably connected to each other in series, and the second conveyance path has a plurality of second rail parts that are detachably connected in series to each other and are arranged in parallel to the first straight moving rail. In the second linear motion rail, the conveyance path switching mechanism moves in parallel with the second rail portion arranged in parallel with the first rail portion on which the moving body is placed, and the first straight rail portion connected to the first rail portion Between the moving track and the second linear moving track connected between the second track parts, the connection between the track parts is switched.

Thereby, only by switching the connection between the first direct motion rail and the second direct motion rail to the first rail portion on which the mobile body is placed, the mobile body can automatically travel on the second direct motion rail and supply the workpiece department move. Therefore, the linear transfer mechanism can move the movable body at high speed and with high precision, and can reduce the workpiece transfer work before forming by the loader, thereby improving production efficiency.

The moving body preferably has a linear motor mover, the first rail portion and the second rail portion respectively have a linear motor stator, and the first rail portion and the second rail portion are electrically and mechanically connected to each other. connected in series.

Thereby, the wiring of the first rail part and the second rail part constituting the linear module is omitted, so the degree of freedom in the arrangement structure of the first direct motion rail and the second direct motion rail is high, and the working area of the loader can be reduced and the resulting in a compact design.

The conveying path switching mechanism may be a lifting mechanism that lifts between a first height position and a second height position, and the first rail portion and the second rail portion are connected to each other at the first height position, so that The second height position is a height position where the first rail portion on which the moving body is placed is connected to the second rail portion and the second rail portion is lower than the first rail portion.

In this way, the mobile body that can automatically run on the first rail portion and the second rail portion constituting the linear module can be combined with the lifting operation performed by the lifting mechanism, so that the mobile body can reciprocate between the pressing part and the workpiece supply part. Therefore, it is possible to reduce the workpiece transportation work performed by the loader, thereby improving production efficiency, and it is possible to carry out workpiece transportation work with a compact device structure without increasing the installation area.

The second rail portion included in the second linear motion rail may extend longer on the side of the workpiece supply portion than the first rail portion included in the first linear motion rail.

Thereby, the second rail portion on which the moving body that moves to the workpiece supply portion along the second linear motion rail is placed can be raised and lowered toward the workpiece receiving position by the elevating mechanism.

The moving body preferably includes a workpiece tray in which a heater for preheating the workpiece before forming to the same level as the forming temperature is incorporated.

In this way, the heating time of the workpiece and the place for preheating can be reduced to improve production efficiency, and it is not easy to be taken away by the workpiece to reduce the mold temperature, so the forming quality can be improved.

The moving body may energize the heater at least at the first conveyance path and the workpiece receiving position to preheat the pre-forming workpiece placed on the workpiece tray to a level equal to the forming temperature.

Thereby, preheating the workpiece before forming can be efficiently preheated by preheating the workpiece before forming at a plurality of locations and preventing temperature drop as much as possible.

The workpiece supply part may further be provided with a pallet preheating part, and the pallet preheating part preheats the workpiece pallet of the moving body before receiving the workpiece. Heat to the same degree as the forming temperature.

Thus, since the temperature of the workpiece pallet tends to drop during the movement of the moving body to receive the workpiece, the preheating of the workpiece pallet by the preheating part for the pallet can reduce the temperature drop of the workpiece pallet and reduce the preheating of the workpiece. time, thereby increasing production efficiency.

It is possible to provide a resin sealing device that reduces the workload of a loader before conveying a workpiece to a sealing mold or the time required for preheating the workpiece, thereby improving production efficiency.

W: Workpiece

A:Work supply department

B, B1, B2, B3, B4: pressing department

C: Molded product storage department

D: Workpiece handling mechanism

E: Workpiece receiving position

F: Preheating part for tray

R: Resin

1: Linear handling mechanism

1A: The first direct motion track

1B: The second direct track

1C: Linear motor track part

1a, 1a0, 1a1, 1a2, 1a3, 1a4: first track portion

1b, 1b00, 1b01, 1b1, 1b2, 1b3, 1b4: Second rail part

1c, 1c0, 1c1, 1c2, 1c3, 1c4: moving body

1d: Heater

1e: Workpiece pallet

2: Resin sealing device

3, 3a, 3b, 3c, 3d: sealed mold

4: Loader

5: supply box

6: Resin supply department

7: Track Department

8: Sprue part

9: Formed product storage box

10: Lifting mechanism

11: Bracket mechanism

12: Pickup

Fig. 1 is a plane layout structure diagram of a resin sealing device.

Fig. 2 is a schematic diagram showing the operating range of the loader.

Fig. 3 is a schematic diagram showing a workpiece conveying operation by a workpiece conveying mechanism.

FIG. 4 is an explanatory diagram showing a resin sealing operation of the resin sealing device shown in FIG. 1 .

FIG. 5 is an explanatory view showing the work conveyance operation to the pressing unit B1.

Fig. 6 is an explanatory diagram following Fig. 5 for conveying the work to the press section B1.

Fig. 7 is an explanatory diagram following Fig. 6 for conveying the work to the press section B1.

FIG. 8 is an explanatory diagram following FIG. 7 of the workpiece conveyance operation to the pressing part B1.

Fig. 9 is an explanatory diagram following Fig. 8 for conveying the work to the press section B1.

Fig. 10 is an explanatory diagram following Fig. 9 for conveying the work to the press section B1.

FIG. 11 is an explanatory diagram following FIG. 10 of the workpiece conveyance operation to the pressing part B1.

Fig. 12 is an explanatory diagram following Fig. 11 for conveying the work to the press section B1.

Fig. 13 is an explanatory diagram following Fig. 12 for conveying the work to the press section B2.

Fig. 14 is an explanatory diagram following Fig. 13 for conveying the work to the press section B2.

Fig. 15 is an explanatory diagram following Fig. 14 for conveying the work to the press section B2.

Fig. 16 is an explanatory diagram following Fig. 15 for conveying the work to the press section B2.

Fig. 17 is an explanatory diagram following Fig. 16 for conveying the work to the press section B2.

Fig. 18 is an explanatory diagram following Fig. 17 of the work conveying operation to the pressing part B2.

First, the resin sealing device in this embodiment will be described. FIG. 1 is a planar layout diagram of a resin sealing device 2 including a workpiece transfer mechanism D. As shown in FIG. The workpiece W will be described assuming that electronic components such as semiconductor chips are mounted on a plate-shaped carrier (eg, lead frame, resin substrate, copper plate, glass plate, resin-laminated substrate, etc.). The workpiece W may be in the form of a strip, or may have multiple single pieces.

In FIG. 1 , as an example, the resin sealing device 2 shows a structure in which a work supply part A, a press part B ( B1 to B4 ), and a molded product storage part C are arranged side by side as separable units. In addition, it may be a device structure in which these units are integrated. The workpiece supply unit A includes a supply box 5 that accommodates the workpiece W before molding in a supplyable manner, and a resin supply unit 6 that supplies the resin R. As shown in FIG. The workpiece supply unit A takes out the workpieces W one by one from the supply box 5 that accommodates a plurality of workpieces W, and supplies them to the workpiece conveyance mechanism D. As shown in FIG. In addition, the resin supply unit 6 holds the resin R in the holder mechanism 11 in an array corresponding to the pot holes of the sealing mold 3 , and delivers the resin R to the loader 4 from the holder mechanism 11 (see FIG. 2 ).

The press part B (B1~B4) has the sealing mold 3 (3a~3d) of an upper mold cavity type and a lower mold cavity type. In the present embodiment, the case where four pressing parts B1 to B4 are arranged in parallel was exemplified, but there may be fewer or more than that. The workpiece W and the resin R are carried into the sealed mold 3 by one forward and backward movement of the loader 4, and the formed workpiece W is carried out. The loader 4 reciprocates along the rail portion 7 erected across the workpiece supply portion A, the pressing portion B, and the molded product storage portion C. As shown in FIG.

The molded product storage section C is provided with a degate section 8 for separating unnecessary resin from the molded workpiece W, and a molded product storage for storing the molded workpiece W (molded product) from which unnecessary resin has been removed. Box 9. The molded workpiece W carried out from the sealing mold 3 by the loader 4 is delivered to the picker 12 (see FIG. 2 ) and transferred to the sprue unit 8 . Unnecessary resin is separated from the molded workpiece W after a gate break in the gate break 8 , and only the molded product is stored in the molded product storage box 9 .

As shown in FIG. 1 , the loader 4 is provided so as to be able to reciprocate from the workpiece supply part A to the molded product storage part C via the press part B along the rail part 7 . Specifically, it can move in the left-right direction along the rail portion 7 disposed on the deep side (upper side in FIG. 1 ) in the resin sealing device 2 , and move forward and backward toward the front side of the device (lower side in FIG. 1 ). The workpiece W before molding supplied from the workpiece supply unit A is transported to the pressing unit B (B1 to B4) by the workpiece transport mechanism D, and the workpiece W is held by the loader 4, and is carried into the sealed mold 3 together with the resin R (3a~3d). In addition, in the sealed mold 3 , the molded workpiece W is unloaded by the loader 4 and stored in the molded article storage unit C. As shown in FIG. Furthermore, an unloader may be provided separately from the loader 4, and the molded workpiece W may be taken out from the pressing part B by the unloader and transported to the molded product storage part C.

The workpiece conveying mechanism D reciprocates the moving body 1c (1c0~1c4) on the conveying path arranged within the moving range of the loader 4 from the workpiece supply part A to the pressing part B (B1~B4), thereby transferring the workpiece W from the workpiece The supply part A supplies to the pressing part B.

The workpiece conveying mechanism D includes: a first conveying path (a first linear motion rail 1A to be described later), a plurality of conveying parts arranged in series, and a moving body 1c (1c0~1c4) on the conveying part holds the workpiece W on the loader 4 and carried into the pressing part B (B1~B4); the second conveying path (the second linear motion track 1B described later) is arranged in parallel with the first conveying path, and a plurality of conveying parts are arranged in series, and the moving body 1c (1c0~ 1c4) reciprocating movement to the workpiece supply part A; and a conveyance path switching mechanism (elevating mechanism 10 described later), which switches the conveyance path between the first conveyance path and the second conveyance path in which the mobile body 1c (1c0~1c4) can move .

As shown in Fig. 2, as the workpiece conveying mechanism D, for example, a linear conveying Institution 1. The linear conveying mechanism 1 has: a first straight-moving rail 1A (first conveying path), a plurality of first rail portions 1a0-1a4 are detachably connected in series with each other; and a second straight-moving rail 1B (second conveying path), The plurality of second rail parts 1b00 to 1b4 are detachably connected in series with each other. The first linear motion rail 1A and the second linear motion rail 1B are arranged in parallel at different heights. The first linear motion track 1A and the second linear motion track 1B constitute a linear motor track portion 1C. The linear motor rail portion 1C is installed over the movement range of the loader 4 from the workpiece supply portion A to the pressing portion B ( B1 to B4 ).

The moving bodies 1c (1c0~1c4) each have a linear motor mover, and the linear motor rail parts 1C (first rail part 1a0~first rail part 1a4, second rail part 1b00~second rail part 1b4) each have a linear motor stator . The first rail portion 1a0 to the first rail portion 1a4 constituting the first linear motion rail 1A and the second rail portion 1b00 to the second rail portion 1b4 constituting the second linear motion rail 1B are recombined and electrically and mechanically connected in series. . The first rail portion 1a0 to the first rail portion 1a4 and the second rail portion 1b00 to the second rail portion 1b4 include a linear motor stator (electromagnet) not shown, a pair of guide rails, a magnetic sensor, and the like. The mobile body 1c0 to the mobile body 1c4 include a pair of guide blocks connected to a pair of guide rails not shown in the figure, or a linear motor mover (permanent magnet) disposed opposite to the linear motor stator, or a magnetic magnet disposed opposite to the magnetic sensor. Ruler etc.

A linear motor is formed by the linear motor mover and the linear motor stator. A motor controller (not shown) supplies current in any one of U-phase, V-phase, and W-phase with different phases to the linear motor stator (coil of the electromagnet). Thereby, when the energization of the electromagnet is controlled, the interaction between the magnetic flux generated by the electromagnet and the magnetic flux of the opposing permanent magnet causes the moving body 1c (1c0~1c4) to generate a propulsion force. Travel along a pair of guide rails by the propulsion force. The stop position of the moving body 1c (1c0~1c4) is detected by the magnetic sensors respectively included in the first rail part 1a (1a0~1a4) and the second rail part 1b (1b00~1b4). By controlling the energization to the coil of the electromagnet of the linear motor stator, the movable body 1c (1c0-1c4) can move to the target position of the linear motor rail part 1C, and can stop.

The first rail portion 1a0 to the first rail portion 1a4 and the second rail portion 1b00 to the second rail portion 1b4 are connected to each other without omitting communication lines and power supply lines. The electrical connection between the rail parts may be performed by mutual terminal connection, or the terminal connection may be performed via a relay member. In this way, the first rail part 1a0~the first rail part 1a4 and the second rail part 1b00~the second rail part 1b4 have a module structure in which wiring is omitted, so the arrangement of the first direct motion rail 1A and the second direct motion rail 1B The degree of freedom of the structure is high, and the work area of the loader 4 can be reduced to form a compact design.

Moreover, the movable body 1c (1c0-1c4) is provided with the workpiece pallet 1e of the stainless metal system which can mount the workpiece|work W on the upper surface part. A heater 1d is incorporated in the workpiece pallet 1e (see FIG. 1 ). As the heater 1d, for example, an infrared heater, a sheath heater, a cartridge heater or the like is used. Thereby, when the movable body 1c (1c0~1c4) is connected to the probes of the first rail part 1a0~1a4 on which it is placed, power can be supplied to the heater 1d, and the workpiece W can be moved via the workpiece pallet 1e. Preheat to the same degree as the forming temperature (for example, about 170°). The portion enclosed in a pear-skin shape in FIG. 2 shows that the heater 1d is energized to preheat the workpiece W via the workpiece pallet 1e. Therefore, the time for preheating the workpiece W is reduced to improve production efficiency, and it is not easy to be deprived of heat by the workpiece W to lower the mold temperature, so it can be improved. High forming quality.

As shown in Fig. 4, with respect to the moving body 1c (1c0~1c4), the heater 1d is energized at least on the first straight-moving rail 1A (first conveying path) and at the workpiece receiving position E, and the workpiece W before forming is preheated. To the same extent as the forming temperature (for example, about 170°). Thereby, the preheating of the workpiece W can be performed in a short time since the preheating is performed multiple times from the supply of the workpiece W to the loading into the press part B.

In FIG. 2 , the first moving rail 1A is installed between the workpiece supply unit A at a height position where the loader 4 holds the workpiece W before forming and moves forward and backward relative to the pressing unit B ( B1 to B4 ). The second linear motion rail 1B is installed between the workpiece supply unit A at a second height position that is lower in height than the first linear motion rail 1A and is parallel to it. Furthermore, the second direct motion rail 1B may also be arranged in parallel at a position higher than the first direct motion rail 1A.

In addition, in FIG. 2 , the elevating mechanism 10 (conveyance path switching mechanism) makes the second rail portion 1b01 to the second rail portion 1b4 arranged in parallel with the first rail portion 1a0 to the first rail portion 1a4 on which the mobile body 1c is placed together. Parallel movement, so that the first direct moving rail 1A connected to each other on the first rail part 1a0~the first rail part 1a4 and the first rail part 1a0~the first rail part 1a4 and the second rail part 1b00~the second rail part 1b4 The transfer path is switched between the connected second linear motion rails 1B.

Specifically, in FIG. 3, the lifting mechanism 10 is at a first height position where the first rail portion 1a0~the first rail portion 1a4 and the second rail portion 1b00~the second rail portion 1b4 are connected to each other, and the mutual connection Release the second highest rail part 1a0 ~ the first rail part 1a4 connected with the second rail part 1b00 ~ the second rail part 1b4 Raise and lower between degrees. Furthermore, the second rail portion 1b00 on which the moving body 1c (1c0~1c4) is placed is raised and lowered between the height position of the second linear motion rail 1B and the workpiece receiving position E, and the moving body 1c (1c0~1c4) is placed on it. ) of the first rail portion 1a0 moves up and down between the height position of the second linear motion rail 1B and the tray preheating portion F described later. Various structures can be adopted for the structure of the lifting mechanism 10, and the first rail portion 1a0 to the first rail portion 1a4 and the second rail portion 1b00 to the second rail portion 1b4 arranged in parallel up and down may be supported in parallel on an arm or the like. Hold by hand etc. and lift by motor drive etc.

The lifting mechanism 10 moves the first rail part 1a0 to the first rail part 1a4 descending to the second height position along the second linear motion rail 1B to the moving body 1c (1c0~1c4) of the workpiece supply part A and the second rail. The part 1b00 is lowered to the workpiece receiving position E, and the second rail part 1b00 on which the moving body 1c (1c0~1c4) receiving the workpiece W before forming is placed is raised to a position connected to the second linear motion rail 1B again. . Then, the first rail part 1a1~1a4 moved by the mobile body 1c (1c0~1c4) and the second rail part 1b1~1b4 directly below it are raised to the original and first rail parts. The first height position where the linear motion track 1A and the second linear motion track 1B are connected again. The moving body 1c ( 1c0 to 1c4 ) is reciprocated between the press part B and the work supply part A by repeating the above operation.

Thereby, when the workpiece W is supplied to the moving body 1c0 to the moving body 1c4 on the first straight-moving rail 1A, the first rail portion 1a0 to 1c4 on which the moving body 1c (1c0 to 1c4) is placed is moved by the elevating mechanism 10. The first rail part 1a4 moves in parallel from the first height position to the second height position and is connected with the second rail part 1b00 ~ the second rail part 1b4 connected, whereby the mobile body 1c0 to the mobile body 1c4 can automatically travel on the second linear motion track 1B and move to the workpiece supply part A, thereby supplying the next workpiece W before forming. Therefore, it is possible to reduce work conveyance work by the loader 4, thereby improving production efficiency.

As shown in FIG. 2 , compared with the first rail portion 1a0 to the first rail portion 1a4 included in the first straight motion rail 1A, the second rail portion 1b00 to the second rail portion 1b4 included in the second straight motion rail 1B are The extension is set longer on the workpiece supply part A side. Specifically, in the first straight moving rail 1A, the first rail portion 1a0 is extended from the first rail portion 1a1 provided in the pressing portion B1 toward the workpiece supply portion A side. In the 2nd linear motion rail 1B, the 2nd rail part 1b01 and the 2nd rail part 1b00 are extended from the 2nd rail part 1b1 provided in the press part B1 to the workpiece|work supply part A side. Therefore, the second linear motion rail 1B is formed to have a longer second rail portion 1b00 on the workpiece supply unit A side than the first linear motion rail 1A. Thereby, as shown in FIG. 3 , the moving body 1c0 to the moving body 1c4 moving to the workpiece supply part A along the second linear motion rail 1B can be lifted to the workpiece receiving position E by the lifting mechanism 10 together with the second rail part 1b00 (FIG. 3 exemplifies the case of raising and lowering the mobile body 1c1).

In addition, the temperature of the workpiece pallet 1e tends to drop during the movement of the movable body 1c0 to the movable body 1c4 to receive the workpiece W before forming. Therefore, the workpiece supply unit A is further provided with a pallet preheating unit F that preheats the workpiece pallet 1e of the moving body 1c0 to the moving body 1c4 before receiving the workpiece W before forming until it is formed. same temperature. Specifically, in FIG. 3 , by using the lifting mechanism 10 to make the first rail portion 1a0 and the second rail portion 1b01 arranged parallel to it As a result, the mobile body 1c1 to the mobile body 1c4 that automatically travels on the first rail portion 1a0 extended on the side of the workpiece supply part A is connected to the height position of the first straight rail 1A, and power is supplied to the heater 1d, and the workpiece The tray 1e is preheated to the same level as the molding temperature (for example, about 170°). In FIG. 3 , the state in which the workpiece pallet 1e is preheated while the movable body 1c0 is arranged in the preheating part F for pallets is shown as an example.

Thereby, by preheating the workpiece pallet 1e by the pallet preheating part F, the temperature drop of the workpiece pallet 1e can be reduced, the preheating time of the workpiece W can be shortened, and the production efficiency can be improved. In addition, by further including the moving body 1c0 more than the number of the pressing part B1 to the pressing part B4, the workpiece pallet 1e can be preheated in advance in the pallet preheating part F of the workpiece supply part A, and the workpiece W before forming can be received. In addition, the preheated moving body 1c0 is used to quickly supply to any one of the pressing parts B after forming, so that the operation rate of the pressing parts B1 to B4 is improved and the production efficiency is improved.

Here, an example of the operation of the resin sealing device 2 is shown in FIG. 4 together with the workpiece transfer operation by the loader 4 . The part enclosed in a pear-skin shape in the figure shows that the workpiece W is preheated via the workpiece pallet 1e. The loader 4 delivers the resin R from the support mechanism 11 in the workpiece supply part A, moves to the desired pressing part B, and receives the pre-molded workpiece W preheated to the same level as the molding temperature from the mobile body 1c (1c0~1c4) , and moved into the sealing mold 3 (such as the lower mold). The sealed mold 3 loaded with the workpiece W and the resin R is closed to carry out compression molding. After molding, the loader 4 receives and unloads the molded workpiece W from the opened sealed mold 3 (for example, an upper mold). The loader 4 transports the molded workpiece W from the press section B to the molded product storage section C and delivers it to the picker 12 in a state where the molded workpiece W is held. The loader 4 repeatedly performs the above operations. Furthermore, the loader 4 may be used to load the workpiece W and the resin R, and the unloader (not shown) may be used to unload the molded workpiece W.

Next, an example of the conveyance operation of the unformed workpiece W to the pressing part B ( B1 to B4 ) by the linear conveyance mechanism 1 will be described with reference to FIGS. 5 to 18 . As shown in FIG. 2 , the moving body 1c1 to the moving body 1c4 mounted on the first direct moving rail 1A (the first rail portion 1a1 to the first rail portion 1a4 ) erected on the pressing portion B1 to the pressing portion B4 are probed. The needle is wired to the heater and the heater 1d is energized, so that the workpiece W is preheated to the same level as the molding temperature (for example, about 170°) via the workpiece pallet 1e and waits. Similarly, in the tray preheating section F provided in the workpiece supply section A, the workpiece tray 1e transferred to the moving body 1c0 on the first rail section 1a0 is also connected to the heater 1d by the probe and the heater wiring. Powered and thus preheated to the same extent as the forming temperature.

Next, the operation of supplying the workpiece to the press part B before forming will be described. An operation example in which the moving bodies 1c0 to 1c4 positioned on the first moving rail 1A of the pressing parts B1 to B4 in FIG. 2 receive the workpiece W before forming to the workpiece supply part A will be described. As shown in FIG. 5 , the operation of receiving the workpiece W before forming from the movable body 1c0 preheated in the preheating part F for trays is started. The part surrounded by pear skin in the figure indicates that it is preheated.

As shown in FIG. 5 , the elevating mechanism 10 lowers the first rail portion 1a0 on which the moving body 1c0 is placed, and the second rail portion 1b01 disposed parallel therebelow, and connects the first rail portion 1a0 to the second rail portion 1b00 and the second rail portion 1b00. Between the second track part 1b1. As shown in FIG. 6 , the mobile body 1c0 automatically travels from the first rail portion 1a0 to the second rail portion 1b00 . As shown in FIG. 7 , the elevating mechanism 10 lowers the second rail portion 1b00 on which the moving body 1c0 is placed to the workpiece receiving position E. As shown in FIG. Then, the mobile body 1c0 receives the unformed workpiece W (see FIG. 1 ) from the supply box 5 on the workpiece pallet 1e, and the workpiece W is preheated to the same degree as the molding temperature by the heater 1d built in the workpiece pallet 1e. .

In FIG. 8, the first rail part 1a1 on which the moving body 1c1 is placed and the second rail part 1b1 below it are lowered in the pressing part B1 by the elevating mechanism 10, and the first rail part 1a1 is connected to the first rail part. 1a0 and the second rail part 1b2. The mobile body 1c1 automatically travels toward the first rail portion 1a0 on the second linear motion rail 1B. Next, as shown in FIG. 9 , the elevating mechanism 10 raises the first rail portion 1a0 on which the moving body 1c1 is placed and the second rail portion 1b01 parallel thereto, and the second rail portion 1b01 is connected to the first rail portion 1a1. At this time, the workpiece pallet 1e moved to the movable body 1c1 of the preheating part F for pallets is preheated to the same degree as a molding temperature on the 1st rail part 1a0.

Next, as shown in FIG. 10 , the elevating mechanism 10 raises the second rail portion 1b00 on which the moving body 1c0 receiving the workpiece W is placed from the workpiece receiving position E to a height position connected to the second rail portion 1b01 . Then, as shown in FIG. 11 , the mobile body 1c0 is automatically driven from the second rail portion 1b00 to the first rail portion 1a1 via the second rail portion 1b01 .

As shown in FIG. 12, the first rail portion 1a1 on which the moving body 1c0 is placed and the second rail portion 1b1 arranged in parallel therewith are raised by the elevating mechanism 10, and the first rail portion 1a1 is connected to the first rail portion 1a2. The second rail portion 1b1 is connected between the first rail portion 1a0 and the second rail portion 1b2. Thereby, the mobile device on which the workpiece W is placed The workpiece pallet 1e of the movable body 1c0 is preheated to the same level as the molding temperature on the first rail portion 1a1. Furthermore, the workpiece W preheated on the workpiece pallet 1e is carried into the sealing mold 3a of the press part B1 by the loader 4 holding the resin R (refer FIG. 1).

In addition, as for the moving body 1c1 in which the workpiece pallet 1e is preheated in the pallet preheating part F, as shown in FIG. The first rail portion 1a0 is connected between the second rail portion 1b00 and the second rail portion 1b1. Then, as shown in FIG. 13 , the mobile body 1c1 automatically travels from the first rail portion 1a0 to the second rail portion 1b00 .

In addition, in the pressing part B2, the elevating mechanism 10 lowers the first rail part 1a2 on which the moving body 1c2 is placed and the second rail part 1b2 arranged in parallel therewith, and the first rail part 1a2 is connected to the second rail part 1b1 and the second rail part 1b1. Between the rail parts 1b3.

In FIG. 14 , the second rail portion 1b00 on which the moving body 1c1 is placed is lowered to the workpiece receiving position E by the elevating mechanism 10 . Then, the moving body 1c1 receives the unformed workpiece W (see FIG. 1 ) from the supply box 5 on the workpiece pallet 1e, and the workpiece W is preheated to the same degree as the molding temperature by the heater 1d built in the workpiece pallet 1e. . In addition, the mobile body 1c2 automatically travels from the first rail portion 1a2 to the first rail portion 1a0 via the second rail portion 1b1.

In Fig. 15, the elevating mechanism 10 raises the first rail part 1a0 on which the moving body 1c2 is placed and the second rail part 1b01 arranged in parallel therewith, connects the first rail part 1a0 to the first rail part 1a1, and makes the second rail part 1a0 The portion 1b01 is connected to the second rail portion 1b1. At this time, the workpiece pallet moved to the movable body 1c2 of the pallet preheating part F 1e is preheated to the same level as the molding temperature on the first rail portion 1a0.

Next, as shown in FIG. 16 , the elevating mechanism 10 raises the second rail portion 1b00 on which the moving body 1c1 receiving the workpiece W is placed from the workpiece receiving position E to a height position connected to the second rail portion 1b01 . Then, as shown in FIG. 17 , the mobile body 1c1 is automatically driven from the second rail portion 1b00 to the first rail portion 1a2 via the second rail portion 1b01 and the second rail portion 1b1 .

As shown in FIG. 18, the first rail portion 1a2 on which the moving body 1c1 is placed and the second rail portion 1b2 arranged in parallel therewith are raised by the elevating mechanism 10, so that the first rail portion 1a2 is connected to the first rail portion 1a1 and the first rail portion 1a1. Between the 1st rail part 1a3, the 2nd rail part 1b2 is connected between the 2nd rail part 1b1 and the 2nd rail part 1b3. Thereby, the workpiece|work W mounted on the workpiece pallet 1e of the movable body 1c1 is preheated to the same degree as a molding temperature on the 1st rail part 1a2. Furthermore, the workpiece W preheated on the workpiece pallet 1e is carried into the sealing mold 3b of the press part B2 by the loader 4 holding the resin R (refer FIG. 1).

In addition, in FIG. 18, regarding the moving body 1c2 in which the workpiece pallet 1e is preheated in the pallet preheating part F, the first rail part 1a0 and the second rail part 1b01 arranged in parallel thereto are lowered by the elevating mechanism 10, so that The first rail portion 1a0 is connected between the second rail portion 1b00 and the second rail portion 1b1.

Then, the mobile body 1c2 automatically travels from the first rail portion 1a0 to the second rail portion 1b00 (see FIG. 6 and FIG. 13 ). Next, the elevating mechanism 10 lowers the second rail portion 1b00 on which the moving body 1c2 is placed to the workpiece receiving position E (see FIG. 7 and FIG. 14 ). Then, the moving body 1c2 receives the unformed workpiece W from the supply box 5 on the workpiece pallet 1e. (Refer to FIG. 1 ), the workpiece W is preheated to the same level as the forming temperature by the heater 1d built in the workpiece pallet 1e (refer to FIGS. 7 and 14 ).

Regarding the work conveying operation performed by the movable body 1c3 included in the pressing part B3 and the moving body 1c4 included in the pressing part B4, the preheating of the workpiece pallet 1e in the pallet preheating part F is performed alternately following the moving body 1c2. The heating and preheating of the workpiece W at the workpiece receiving position E convey the workpiece W to the pressing part B3 and the pressing part B4. The detailed description is the same as that of the mobile body 1c0 and the mobile body 1c1, and thus will be omitted.

As described above, the first rail portion 1a0 to the first rail portion 1a4, that is, the moving body 1c0 to the moving body on the first rail portion 1a0 to the first rail portion 1a4 forming the first straight-moving rail 1A The first rail part 1a0~the first rail part 1a4 of 1c4 are arranged in parallel and the second rail part 1b01~the second rail part 1b4 move in parallel, so that the first rail part 1a0~the first rail part 1a4 and the second rail part 1b00~the second rail part 1b00~the second rail part 1b00~the second rail part The two track parts 1b4 are connected, so that the mobile body 1c (1c0~1c4) can automatically travel on the second linear motion track 1B and move to the workpiece supply part A to supply the next workpiece W before forming. Thereby, the workpiece conveyance work by the loader 4 can be reduced, and productivity can be improved.

In addition, the first track part 1a0~the first track part 1a4 and the second track part 1b00~the second track part 1b4 have a module structure that is recombined and electrically and mechanically connected to each other, so the first direct moving track 1A and the second track part The arrangement structure of the two linear motion rails 1B has a high degree of freedom, and can reduce the work area of the loader 4 and form a compact design.

In addition, the workpiece pallets 1e of the movable bodies 1c1 to 1c4 on the first straight-moving rail 1A are heated, and the workpiece W before workpiece forming is preheated to a temperature comparable to the forming temperature. Therefore, the preheating time of the workpiece W is reduced to improve production efficiency, and it is difficult for the workpiece W to deprive the heat of the mold to lower the mold temperature, so the forming quality can be improved.

In addition, the temperature of the workpiece pallet 1e tends to drop during the movement of the moving bodies 1c1-104 of the pressing parts B1-B4 to receive the workpiece W. Therefore, if the pallet preheating part F is provided in the workpiece supply part A, the temperature drop of the workpiece pallet 1e can be reduced by preheating the workpiece pallet 1e to the same degree as the molding temperature by the pallet preheating part F, reducing the The preheating time of the workpiece W, thereby improving production efficiency. In addition, by further including the moving body 1c0 more than the number of the pressing part B1 to the pressing part B4, the moving body 1c0 can receive the workpiece W before forming in the workpiece supply part A in advance and supply the preheated workpiece W to the forming unit. Any press section B that ends, so the operating rate of the press section B can be increased to improve production efficiency.

Furthermore, the first straight-moving rail 1A and the second straight-moving rail 1B included in the linear transfer mechanism 1 are arranged in parallel at different height positions, but the embodiment is not limited to the above. For example, the first linear motion rail 1A and the second linear motion rail 1B may be arranged in parallel at the same height and at different positions in the horizontal direction. In the above case, the transfer path switching mechanism uses a horizontal movement mechanism instead of the lifting mechanism 10, so that the first rail part 1a0~the first rail part 1a4 and the second rail part 1b00~the second rail part 1b4 are close to the device on the same plane. The front side or the device depth side is slidably moved to connect the first rail part 1a0~1a4 on which the moving body 1c (1c0~1c4) is placed and the second rail part 1b00~1b4.

In addition, the first linear motion rail 1A and the second linear motion rail 1B may be arranged in parallel at different positions in the height direction and the horizontal direction. In the case described, the transport path cuts The changing mechanism can also use a three-dimensional moving robot arm to move the first rail part 1a0~1a4 and the second rail part 1b00~1b4.

Furthermore, in the workpiece supply part A, the moving body 1c (1c0~1c4) moved on the second rail part 1b00 is lowered from the second linear motion rail 1B to the workpiece receiving position E together with the second rail part 1b00, and the movement The movable body 1c on the second rail portion 1b00 can also supply the workpiece W before forming to the workpiece pallet 1e from the supply box 5 arranged on the extension line of the second linear motion rail 1B. Alternatively, the workpiece W before forming may be supplied to the moving body 1c ( 1c0 to 1c4 ) from the supply box 5 arranged above the second rail portion 1b00 .

In the above-mentioned embodiment, the linear conveyance mechanism 1 is used as the work conveyance mechanism D, but it is not limited thereto. The workpiece handling mechanism D can also be a belt handling mechanism. Specifically, the belt conveying mechanism may also include: a first belt conveying path (equivalent to the first straight track 1A), a belt module in which the moving body 1c is arranged in series to move on the surrounding endless belt; and the second belt conveying The path (corresponding to the second direct motion rail 1B) is arranged in parallel to the first belt conveyance path, and a plurality of belt modules are arranged in series. For example, in FIG. 2 , a belt module may be arranged instead of the first rail portion 1 a0 to the first rail portion 1 a4 , and a belt module may be arranged instead of the second rail portion 1 b00 to the second rail portion 1 b4 . Furthermore, the first belt conveyance path and the second belt conveyance path may be arranged in parallel at different height positions, may also be arranged in parallel at the same height at different positions in the horizontal direction, or may have different height positions and horizontal positions. configuration.

The mobile body 1c (1c0~1c4) is the same in that the stainless metal workpiece pallet 1e capable of loading the workpiece W is provided on the upper surface, and the workpiece pallet 1e A heater 1d is built into 1e (see FIG. 1 ). As the heater 1d, for example, an infrared heater, a jacket heater, a cartridge heater, etc. are used. The same is true for the following structure: the moving body 1c0 to the moving body 1c4 hit the stopper provided on the first belt conveying path and stop, and the probes installed on the moving body 1c0 to 1c4 and the probes installed on the first belt conveying path The heaters are wired to supply power to the heater 1d, and the workpiece W is preheated to the same level as the molding temperature (for example, about 170° C.) via the workpiece pallet 1e. In addition, the same applies to the point that the preheating part F for pallets is also included in the work supply part A. In such a case, it is preferable that the conveyance path switching mechanism switches the conveyance path by transferring only the mobile body 1c between the first belt conveyance path and the second belt conveyance path.

Thereby, as for the mobile body 1c, it is only necessary to use the transport path switching mechanism to change the load of the mobile body 1c on the first conveyance path and the second conveyance path in which the belt modules are arranged in series, so that the loader 1c can be replaced with a simple structure. 4. The conveyance of the workpiece W before forming is carried out, thereby improving production efficiency.

In addition, an embodiment in which four pressing parts B1 to B4 are arranged side by side in the pressing part B is disclosed, but the number of pressing parts B may be larger or smaller than this, and may be either. In addition, the sealing mold 3 included in the pressing part B may be a transfer molding device or a compression molding device, or either.

In addition, the loader 4 supplies the unmolded workpiece and the resin R and takes out the molded workpiece W, but is not limited thereto, and may include a loader for supplying the unmolded workpiece W and an unloader for unloading the molded workpiece W. .

In addition, the resin R exemplifies flat-plate resins, and resins in other forms, such as granular resins, powdery resins, and liquid resins, may be used.

A:Work supply department

B, B1, B2, B3, B4: pressing department

C: Molded product storage department

E: Workpiece receiving position

F: Preheating part for tray

R: Resin

1: Linear handling mechanism

1A: The first direct motion track

1B: The second direct track

1C: Linear motor track part

1a0, 1a1, 1a2, 1a3, 1a4: the first track part

1b00, 1b01, 1b1, 1b2, 1b3, 1b4: the second track part

1c0, 1c1, 1c2, 1c3, 1c4: moving objects

1e: Workpiece pallet

2: Resin sealing device

4: Loader

10: Lifting mechanism

11: Bracket mechanism

12: Pickup

Claims (8)

A resin sealing device comprising a workpiece conveyance mechanism capable of reciprocating a moving body on a conveyance path disposed within a moving range of a loader from a workpiece supply part to a press part, and capable of moving from the workpiece supply part to the The pressing part supplies workpieces, and the resin sealing device is characterized in that the workpiece conveying mechanism includes: a first conveying path, a plurality of conveying parts are arranged in series, and the moving body on the conveying part transfers the The workpiece is held by the loader and carried into the press unit; the second conveyance path is arranged in parallel with the first conveyance path, a plurality of conveyance portions are arranged in series, and the moving body reciprocates toward the workpiece supply portion and a conveyance path switching mechanism for switching the conveyance path between the first conveyance path and the second conveyance path on which the mobile body moves, wherein the workpiece conveyance mechanism is arranged in series with the mobile body A linear conveying mechanism for a linear module that automatically travels on a rail portion, the first conveying path has a first straight-moving rail formed by detachably connecting a plurality of first rail portions in series, and the second conveying path A plurality of second linear rails are detachably connected in series to each other and arranged in parallel to the first linear motion rail. The second rail parts arranged in parallel to the first rail parts move in parallel together, and the first straight-moving rails connected to each other at the first rail parts and the first moving rails connected between the second rail parts The connection of the track portion is switched between two direct-acting tracks. The resin sealing device as described in claim 1, wherein the workpiece The conveying mechanism is a belt conveying mechanism, and the belt conveying mechanism includes: a first belt conveying path, a belt module in which the mobile body moves on a surrounding endless belt is arranged in series; A belt conveyance path is arranged in parallel, and a plurality of belt modules are arranged in series, and the conveyance path switching mechanism transfers the moving body between the first belt conveyance path and the second belt conveyance path. The resin sealing device according to claim 1, wherein the moving body has a linear motor mover, the first rail portion and the second rail portion each have a linear motor stator, and the first rail portion and the The second track parts are electrically and mechanically connected in series. The resin sealing device according to claim 1 or 3, wherein the conveyance path switching mechanism is a lifting mechanism that lifts and lowers between a first height position and a second height position, and the first height position is at the first height position. The rail portion and the second rail portion are connected to each other, the second height position is such that the first rail portion on which the moving body is placed is connected to the second rail portion, and the second rail portion is lower than the second rail portion. The height position of the first track portion is low. The resin sealing device according to claim 1 or 3, wherein the second rail portion included in the second straight motion rail is larger than the first rail portion included in the first straight motion rail The extension is longer on the side of the workpiece supply part. The resin sealing device according to claim 1 or 2, wherein the moving body includes a workpiece tray in which a heater for preheating the workpiece before forming to a temperature equal to a forming temperature is incorporated. The resin sealing device according to claim 6, wherein the moving body energizes the heater at least at the first conveyance path and the workpiece receiving position, and the unmolded workpiece placed on the workpiece tray The workpiece is preheated to the same extent as the forming temperature. The resin sealing device according to claim 1 or 2, wherein the workpiece supply unit is further provided with a preheating unit for a tray, and the preheating unit for the tray heats the workpiece of the moving body before receiving the workpiece. The tray is preheated to the same extent as the forming temperature.

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