TWI840031B - Resin seal - Google Patents

Abstract

The resin sealing device (100) of the present invention comprises: a first moving body (30), a second moving body (31), and a movable pin. The first moving body (30) moves in a first direction intersecting with the direction of closing the upper mold and the lower mold, i.e., the closing direction. The second moving body (31) moves in a second direction in the closing direction and approaching one of the upper mold and the lower mold as the first moving body (30) moves in the first direction. The movable pin is mounted on the second moving body (31), and moves in the second direction as the second moving body (31) moves.

Description

Resin seal

The disclosed embodiment relates to a resin sealing device.

Previously, a resin sealing device having a movable pin that can penetrate into a mold cavity is known. For example, Patent Document 1 discloses a resin sealing device having a movable pin that penetrates into a mold cavity to support a part disposed in the mold cavity, and is pulled out of the mold cavity after the resin flows into the mold cavity. [Prior Technical Document] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2015-225874

[The problem that the invention wants to solve]

However, in the resin sealing device described in Patent Document 1, the displacement in the height direction of the rotary-to-linear conversion mechanism is transmitted to the movable pin via the movable pin and the plate. Therefore, a space is required for the displacement in the height direction of the rotary-to-linear conversion mechanism, and there is a problem of increasing the size of the resin sealing device in the vertical direction. This situation is not limited to the movable pin supporting the molded product, for example, it is also the same for the movable pin that switches the opening and closing state of the exhaust port when entering and exiting the flow path of the exhaust port that releases the air in the mold cavity to the outside.

One embodiment of the present invention is completed in view of the above, and its purpose is to suppress the enlargement of the resin sealing device. [Technical means for solving the problem]

A resin sealing device in one embodiment includes a first movable body, a second movable body, and a movable pin. The first movable body moves in a first direction intersecting with the direction of clamping the upper mold and the lower mold, i.e., the clamping direction. The second movable body moves in a second direction in the clamping direction and toward one of the upper mold and the lower mold as the first movable body moves in the first direction. The movable pin is mounted on the second movable body and moves in the second direction as the second movable body moves. [Effect of the invention]

According to one aspect of the implementation form, the enlargement of the resin sealing device can be suppressed.

Hereinafter, the embodiments of the resin sealing device disclosed in the present application will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited to the embodiments shown below.

<1. Overview of the resin sealing device> As shown in FIG1 , the resin sealing device 100 of the embodiment includes: an upper mold 10, a lower mold 11, an upper movable pin 18, a lower movable pin 19, an upper movable pin plate member 23, a lower movable pin plate member 53, and a plunger 81. The upper direction in FIG1 is the upper direction of the resin sealing device 100, the lower direction in FIG1 is the lower direction of the resin sealing device 100, the left direction in FIG1 is the left direction of the resin sealing device 100, and the right direction in FIG1 is the right direction of the resin sealing device 100.

In the resin sealing device 100 shown in FIG. 1 , the upper mold 10 and the lower mold 11 are in a mold-clamping state, and the material-cutting portion 70, the gutter portion 71, and the mold cavity 72 are formed by the mold-clamping of the upper mold 10 and the lower mold 11. In the mold-clamping state of the upper mold 10 and the lower mold 11, the sealing resin 91 disposed in the pouring cavity 74 of the lower mold 11 is pressurized by the plunger 81. Thereby, the sealing resin 91 is fed into the mold cavity 72 through the material-cutting portion 70 and the gutter portion 71.

A molded product 90 to be sealed with resin is disposed in the mold cavity 72. When the upper mold 10 and the lower mold 11 are clamped, the front ends of the upper movable pins 18 abut against the upper surface of the molded product 90, and the front ends of the lower movable pins 19 abut against the lower surface of the molded product 90. The molded product 90 is supported by the upper movable pins 18 and the lower movable pins 19, and the position of the molded product 90 is fixed in the mold cavity 72.

After the cavity 72 is filled with the sealing resin 91, the upper movable pin 18 and the lower movable pin 19 are pulled out of the cavity 72. Specifically, after the cavity 72 is filled with the sealing resin 91, the upper movable pin 18 moves upward along with the upward movement of the upper movable pin plate member 23, and the tip is pulled out of the cavity 72. In addition, the lower movable pin 19 moves downward along with the downward movement of the lower movable pin plate member 53, and the tip is pulled out of the cavity 72.

Thereby, a resin-sealed molded product is formed in which the molded product 90 is sealed with resin. Thereafter, in the resin sealing device 100 , the lower mold 11 moves downward and the lower mold 11 leaves the upper mold 10 , and the resin-sealed molded product is taken out of the resin sealing device 100 .

As shown in Fig. 2, the resin sealing device 100 includes: a first driving portion 5, a second driving portion 6, a first moving mechanism 16, and a second moving mechanism 17. The first moving mechanism 16 is driven by the first driving portion 5. The base end of the upper movable pin 18 is mounted on the first moving mechanism 16, and the upper movable pin 18 is moved in the vertical direction by the first moving mechanism 16.

The second moving mechanism 17 is driven by the second driving unit 6. The second moving mechanism 17 includes: a first moving body 30, which is driven in the left-right direction by the second driving unit 6; and a second moving body 31, which moves in the direction approaching the upper mold 10 (refer to FIG. 1), that is, in the upward direction, accompanying the movement of the first moving body 30 in the left-right direction.

The lower movable pin 19 is attached to the second movable body 31, and moves in the vertical direction along with the vertical movement of the second movable body 31. The lower movable pin 19 is an example of a movable pin, the left-right direction is an example of a first direction, and the up-down direction is an example of a second direction.

As described above, in the resin seal device 100 of the embodiment, the vertical movement of the second moving body 31 that moves the lower movable pin 19 in the vertical direction is performed by the horizontal movement of the first moving body 30. Therefore, compared with the case where the second moving mechanism 17 and the first moving mechanism 16 have the same structure, the resin seal device 100 can be prevented from being enlarged in the vertical direction.

The upper movable pin 18 and the lower movable pin 19 are pull-out pins that support the molded product 90 disposed in the mold cavity 72 and are pulled out from the mold cavity 72 after the resin flows into the mold cavity 72, but are not limited to such an example. For example, the upper movable pin 18 and the lower movable pin 19 may also be exhaust port pins that enter and exit the flow path of the exhaust port having a flow path for releasing the air in the mold cavity 72 to the outside and switch the open and closed state of the exhaust port. The following is a more specific description of the structure of the resin sealing device 100.

<2. Structure of resin sealing device> As shown in FIG3 , the resin sealing device 100 of the embodiment includes: a plurality of mold rods 1, a fixed platen 2, a movable platen 3, a resin sealing body 4, a first drive unit 5, a second drive unit 6, a transmission unit 7, a trigger connection mechanism 8, and a base 9.

The plurality of mold bars 1 are parallel to each other and extend in the vertical direction, and are supported by the base 9 through other components, but may also be directly fixed to the base 9. The fixed platen 2 is fixed to the upper end of each mold bar 1. The movable platen 3 is installed at the lower end of each mold bar 1 so as to be movable in the vertical direction.

The transfer unit 7 melts the sealing resin 91 when the upper mold 10 and the lower mold 11 are closed, and extrude the sealing resin 91 into the mold cavity 72 (see FIG. 1 ) through the ejector portion 70 (see FIG. 1 ) and the gutter portion 71 (see FIG. 1 ). The transfer unit 7 includes the plunger 81 described above.

The base end of the tactile link mechanism 8 is fixed to the base 9, and the front end is fixed to the movable platen 3. Thereby, the movable platen 3 is supported on the base 9 via the tactile link mechanism 8, and moves in the up-down direction by the driving of the tactile link mechanism 8.

The resin seal body 4 is supported by the fixed platen 2 and the movable platen 3. As shown in FIG4 , the resin seal body 4 includes an upper mold 10, a lower mold 11, an upper mold support 12, a lower mold support 13, an upper ejection plate member 14, a lower ejection plate member 15, a first moving mechanism 16, and a second moving mechanism 17.

The base end of the upper mold support part 12 is mounted on the fixed platen 2, and the front end is mounted on the upper mold 10. Thus, the upper mold 10 is supported on the fixed platen 2 via the upper mold support part 12. Moreover, the base end of the lower mold support part 13 is mounted on the movable platen 3, and the front end is mounted on the lower mold 11. Thus, the lower mold 11 is supported on the movable platen 3 via the lower mold support part 13.

Ejector pins (not shown) are mounted on the upper ejector plate member 14 and the lower ejector plate member 15. When the lower mold 11 leaves the upper mold 10 after the resin seal molding is performed, the upper ejector plate member 14 is pressed downward by an ejector spring (not shown), and the lower ejector plate member 15 is pressed upward by an ejector rod member (not shown). Thus, the ejector pins (not shown) penetrate into the mold cavity 72 and press the resin seal molded product, and the resin seal molded product is separated from the upper mold 10 and the lower mold 11.

The first moving mechanism 16 includes a plurality of first rod members 20, an upper driving plate member 21, a plurality of second rod members 22, and an upper movable pin plate member 23. The plurality of first rod members 20 are parallel to each other and extend in the vertical direction, and the base ends are attached to the first driving portion 5 (see FIG. 3 ).

The plurality of first rod members 20 are driven in the vertical direction by the first drive unit 5. The first drive unit 5 includes, for example, a servo motor and a drive mechanism. An upper drive plate member 21 is mounted on the front end of the first rod member 20, and the upper drive plate member 21 moves in the vertical direction as the first rod member 20 moves.

The plurality of second rod members 22 are parallel to each other and extend in the up-down direction, and the base ends are attached to the upper driving plate member 21. The front ends of the plurality of second rod members 22 are attached to the upper movable pin plate member 23.

Therefore, the second rod member 22 and the upper movable pin plate member 23 move in the vertical direction accompanying the vertical movement of the upper drive plate member 21. The base ends of the plurality of upper movable pins 18 are mounted on the upper movable pin plate member 23, and the plurality of upper movable pins 18 move in the vertical direction accompanying the movement of the upper movable pin plate member 23.

As shown in Fig. 4, the second moving mechanism 17 includes a first moving body 30 and a second moving body 31. The first moving body 30 includes a camshaft 40 extending in the left-right direction, and the camshaft 40 is driven in the left-right direction in Fig. 4 by the second driving unit 6. The second driving unit 6 includes, for example, a servo motor and a driving mechanism.

A plurality of camshafts 40 are provided in the first moving body 30. In the example shown in Fig. 5 and Fig. 6, the first moving body 30 includes a pair of camshafts 40 that are parallel to each other. The camshaft 40 is a plate-shaped member having a square cross section.

As shown in FIG. 6 , each of the pair of camshafts 40 is formed with a plurality of cavities, i.e., cam grooves 40a, formed in a direction inclined relative to the moving direction of the camshaft 40 achieved by the second driving portion 6 (the left-right direction in FIG. 5 ).

The second moving mechanism 17 is provided with a shaft guide 33 as shown in FIG6 . When the camshaft 40 is driven by the second driving unit 6 , the camshaft 40 is guided by the shaft guide 33 and moves along the extending direction of the shaft guide 33 . The shaft guide 33 is provided for each camshaft 40 .

Furthermore, in the example shown in FIG. 6 , only the shaft guide 33 for guiding one camshaft 40 of the pair of camshafts 40 is shown, and the shaft guide 33 for guiding the other camshaft 40 is not shown.

As shown in FIG6 , the second moving body 31 includes a plurality of cam followers 50, a lower driving plate member 51, and a plurality of third rod members 52. The lower driving plate member 51 is a square plate member, which is an example of the first plate member. The cam follower 50 is a bearing with a shaft, for example, including a mounting shaft, a needle roller, and an outer ring.

A plurality of cam followers 50 are mounted on each side surface 51a of the lower driving plate member 51. The camshaft 40 is disposed in the lower driving plate member 51 at a position opposite to the side surface 51a on which the cam followers 50 are mounted, and each cam follower 50 is inserted into a corresponding cam groove 40a among a plurality of cam grooves 40a formed in a pair of camshafts 40.

Here, as shown in FIG7 , it is assumed that the camshaft 40 is driven by the second drive portion 6 (see FIG5 ) in a direction away from the second drive portion 6, that is, in a left direction in FIG7 . In this case, the camshaft 40 moves along the side surface 51 a of the lower drive plate member 51 , and as the camshaft 40 moves, each cam follower 50 moves in a corresponding cam groove 40 a among a plurality of cam grooves 40 a formed in the pair of camshafts 40 .

Thus, each cam follower 50 is pushed up by the corresponding cam groove 40a and moves upward. Since each cam follower 50 is mounted on the lower driving plate member 51, the lower driving plate member 51 moves upward along with the movement of the cam follower 50.

Furthermore, as shown in FIG7 , after the camshaft 40 is driven by the second driving portion 6 (see FIG5 ) in a direction away from the second driving portion 6, as shown in FIG8 , it is assumed that the camshaft 40 is driven by the second driving portion 6 in a direction approaching the second driving portion 6, i.e., in a right direction in FIG8 . In this case, each cam follower 50 moves in a corresponding cam groove 40a among a plurality of cam grooves 40a formed in a pair of camshafts 40 as the camshaft 40 moves.

As a result, each cam follower 50 is pressed down by the corresponding cam groove 40a and moves downward. Since each cam follower 50 is mounted on the lower driving plate member 51, the lower driving plate member 51 moves downward along with the movement of the cam follower 50.

The base ends of a plurality of third rod members 52 extending in parallel to each other and in the vertical direction are mounted on the lower driving plate member 51 . The plurality of third rod members 52 move in the vertical direction as the lower driving plate member 51 moves in the vertical direction.

As shown in Fig. 4, the second movable body 31 includes a lower movable pin plate member 53. The lower movable pin plate member 53 is an example of a second plate member. The front end of each of the plurality of third rod members 52 is mounted on the lower movable pin plate member 53, and the lower movable pin plate member 53 moves in the vertical direction as the plurality of third rod members 52 move in the vertical direction.

As shown in Fig. 4, the lower movable pins 19 are mounted on the lower movable pin plate member 53, and the lower movable pins 19 move in the vertical direction along with the vertical movement of the lower movable pin plate member 53. That is, the lower movable pins 19 move in the vertical direction along with the horizontal movement of the camshaft 40 in Fig. 4.

Furthermore, in the above example, the left-right direction in FIG. 4 is the left-right direction of the resin seal device 100, and the camshaft 40 moves along the left-right direction of the resin seal device 100, but the present invention is not limited to such an example. For example, the moving direction of the camshaft 40 may also be a direction other than the left-right direction of the resin seal device 100, such as the front-back direction of the resin seal device 100.

In the resin seal device 100, the lower drive plate member 51 moves in the vertical direction accompanying the left-right movement of the pair of camshafts 40. Therefore, in the resin seal device 100, the lower drive plate member 51 can be moved with high precision compared to the case where the lower drive plate member 51 is driven by one camshaft 40.

Furthermore, since the pair of camshafts 40 are disposed at positions where the lower driving plate member 51 is sandwiched between them, the lower driving plate member 51 can be moved with higher precision. Furthermore, the pair of camshafts 40 are of the same shape, thereby enabling the lower driving plate member 51 to be moved with higher precision and reducing the manufacturing cost of the camshafts 40. Furthermore, the pair of camshafts 40 may also be of different shapes.

In addition, a plurality of cam grooves 40a are formed in each camshaft 40 at intervals in the extending direction of the camshaft 40, thereby enabling the lower driving plate member 51 to be moved with high precision via a plurality of cam followers 50. In the above example, two cam grooves 40a are formed for one camshaft 40, but the number of cam grooves 40a formed on one camshaft 40 is not limited to the above example, and may be three or more, or may be one.

In addition, a plurality of upper movable pins 18 are provided on the upper movable pin plate member 23, and a plurality of lower movable pins 19 are provided on the lower movable pin plate member 53. Thus, the resin sealing device 100 can simultaneously support the molded products 90 disposed in the plurality of cavities 72 formed by the upper mold 10 and the lower mold 11.

Furthermore, a plurality of upper movable pins 18 and lower movable pins 19 may be provided for one cavity 72. Thus, the resin sealing device 100 can fix the position of the molded product 90 with higher accuracy.

Here, the movement of the upper movable pin 18 and the lower movable pin 19 by the first moving mechanism 16 and the second moving mechanism 17 when the molded product 90 is sealed with resin in the resin sealing device 100 will be described.

As shown in FIG9 , in the state where the upper mold 10 and the lower mold 11 are clamped, the front end of the upper movable pin 18 abuts against the upper surface of the molded product 90, and the front end of the lower movable pin 19 abuts against the lower surface of the molded product 90. Thus, as shown in FIG1 , the molded product 90 is supported by the upper movable pin 18 and the lower movable pin 19, and the position of the molded product 90 in the mold cavity 72 is fixed.

Thereafter, the sealing resin 91 disposed in the pouring cavity 74 of the lower mold 11 is pressurized by the plunger 81 , and as shown in FIG. 1 , the sealing resin 91 is fed into the mold cavity 72 via the ejection portion 70 and the gating portion 71 .

Then, after the sealing resin 91 is filled into the mold cavity 72 as shown in FIG10 , before the sealing resin 91 solidifies, the upper movable pin 18 and the lower movable pin 19 are moved by the first moving mechanism 16 (see FIG4 ) and the second moving mechanism 17 (see FIG4 ) as shown in FIG11 . Specifically, the upper movable pin 18 is moved upward by the first moving mechanism 16, and the front end of the upper movable pin 18 is pulled out of the mold cavity 72, and the lower movable pin 19 is moved downward by the second moving mechanism 17, and the front end of the lower movable pin 19 is pulled out of the mold cavity 72.

In the above example, the first movable body 30 is described as moving in the left-right direction or the front-back direction of the resin sealing device 100, but the present invention is not limited to such an example. The first movable body 30 can move in a direction intersecting with the direction in which the upper mold 10 and the lower mold 11 are closed, that is, the closing direction, and is not limited to the above example.

In the resin sealing device 100 of the structure shown in FIG3, since the transmission unit 7 is arranged below the movable platen 3, the length in the vertical direction becomes longer, and the first moving body 30 of the second moving mechanism 17 moves in a direction intersecting the vertical direction. Therefore, the resin sealing device 100 can be prevented from being enlarged in the vertical direction.

In the above example, the first moving mechanism 16 and the second moving mechanism 17 are different in structure, but the first moving mechanism 16 may be the same as the second moving mechanism 17 as shown in FIG12. The second moving mechanism 17 shown in FIG12 includes the first moving body 30 (refer to FIG4) and the second moving body 31 (refer to FIG4) as the first moving mechanism 16. Thereby, the resin sealing device 100 can be further prevented from being enlarged in the vertical direction.

In the above example, the lower movable pin 19 is a pull pin, but the lower movable pin 19 is not limited to a pull pin. For example, the lower movable pin 19 may be an exhaust port pin as shown in FIG. 13. The exhaust port pin is a pin that switches the exhaust port 73 in and out of the flow path of the exhaust port 73 that has a flow path for releasing air in the mold cavity 72 to the outside.

The exhaust port 73 is in an open state until the cavity 72 is filled with the sealing resin 91. After the sealing resin 91 is filled in the cavity 72, as shown in FIG. 13, the lower movable pin 19 invades the flow path of the exhaust port 73, and the exhaust port 73 becomes closed.

Furthermore, the moving mechanism for moving the pull pin in the vertical direction and the moving mechanism for moving the exhaust port pin in the vertical direction of the resin seal device 100 can be configured similarly to the second moving mechanism 17. Thus, the resin seal device 100 can be further prevented from being enlarged in the mold clamping direction.

Furthermore, the second moving mechanism 17 includes a camshaft 40 including a cam groove 40a for a pull pin and a cam groove 40a for an exhaust port pin, so that a common camshaft 40 can be used for the pull pin and the exhaust port pin. In this case, the cam follower 50, the lower driving plate member 51, the plurality of third rod members 52, and the lower movable pin plate member 53 of the second moving mechanism 17 are provided separately for the pull pin and the exhaust port pin.

In the above example, the second moving mechanism 17 includes a camshaft 40 having a cam groove 40a, and a cam follower 50 installed on the side 51a of the lower driving plate member 51, so that the moving direction of the camshaft 40 and the moving direction of the lower driving plate member 51 are set to different directions, but it is not limited to such an example.

For example, in the resin seal device 100 , the second moving mechanism 17 may be configured as follows: a cam slider is provided on the cam shaft 40 instead of the cam groove 40 a , and a cam driver protrudes from the side surface 51 a of the lower driving plate member 51 instead of the cam follower 50 .

As described above, the resin sealing device 100 of the embodiment includes: a first movable body 30, a second movable body 31, and a lower movable pin 19. The lower movable pin 19 is an example of a movable pin. The first movable body 30 moves in a first direction intersecting with the direction of clamping the upper mold 10 and the lower mold 11, that is, the clamping direction. The above-mentioned up-down direction is an example of the clamping direction, and the above-mentioned left-right direction is an example of the first direction. The second movable body 31 moves in the second direction in the clamping direction and approaching one of the upper mold 10 and the lower mold 11 as the first movable body 30 moves in the first direction. The above-mentioned up-down direction is an example of the second direction. The lower movable pin 19 is mounted on the second movable body 31. It moves in the second direction as the second movable body 31 moves in the second direction. Thereby, in the resin sealing device 100, compared with the case where the first movable body 30 is configured to move in the mold clamping direction, it is possible to suppress an increase in size in the mold clamping direction.

Furthermore, the first movable body 30 has a cam shaft 40 extending in the first direction and having a cam groove 40a which is a cavity formed in a direction inclined relative to the first direction. The second movable body 31 has a cam follower 50 and a lower driving plate member 51. The lower driving plate member 51 is an example of the first plate member. The cam follower 50 is inserted into the cam groove 40a, and moves in the second direction by moving in the cam groove 40a accompanying the movement of the cam shaft 40 in the first direction. The lower driving plate member 51 moves in the second direction accompanying the movement of the cam follower 50. Thereby, in the resin sealing device 100, enlargement in the mold clamping direction can be suppressed.

In addition, the cam shaft 40 is formed with a plurality of cam grooves 40a along the extending direction of the cam shaft 40. A plurality of cam followers 50 are provided corresponding to the plurality of cam grooves 40a. Thus, in the resin seal device 100, the lower driving plate member 51 can be moved with high precision compared to the case where the cam groove 40a is one.

Furthermore, the second movable body 31 includes a plurality of third rod members 52 and a lower movable pin plate member 53. The third rod member 52 is an example of a rod member, and the lower movable pin plate member 53 is an example of a second plate member. The base ends of the plurality of third rod members 52 are mounted on the lower driving plate member 51. The lower movable pin plate member 53 is mounted on the front ends of the plurality of third rod members 52. The lower movable pin 19 is mounted on the lower movable pin plate member 53. Thus, in the resin sealing device 100, for example, even when other members are present between the lower driving plate member 51 and the lower mold 11, the lower movable pin 19 can be moved with high precision.

Furthermore, the camshaft 40 faces the side surface 51a of the lower driving plate member 51 on which the cam follower 50 is mounted, and moves along the side surface 51a. Thus, in the resin sealing device 100, the lower driving plate member 51 and the camshaft 40 can be arranged at the same position in the vertical direction, so that the resin sealing device 100 can be prevented from being enlarged in the mold clamping direction.

Furthermore, the first moving body 30 includes a pair of camshafts 40. The pair of camshafts 40 are disposed at positions where the lower driving plate member 51 is sandwiched between them. Thus, in the resin seal device 100, the lower driving plate member 51 can be moved with high precision compared to the case where the lower driving plate member 51 is driven by one camshaft 40.

Furthermore, the resin sealing device 100 includes a plurality of lower movable pins 19. Thus, in the resin sealing device 100, for example, the molded products 90 arranged in the plurality of cavities 72 formed by the upper mold 10 and the lower mold 11 can be supported simultaneously.

The lower movable pin 19 is a pull pin that supports the molded product 90 disposed in the cavity 72 formed by the upper mold 10 and the lower mold 11 and is pulled out of the cavity 72 after the resin flows into the cavity 72. Thus, in the resin sealing device 100, the vertical dimension of the moving mechanism for moving the pull pin can be suppressed, and the enlargement in the mold closing direction can be suppressed.

The lower movable pin 19 is an exhaust port pin that switches the open/close state of the exhaust port 73 by entering and exiting the flow path of the exhaust port 73 that is a flow path for releasing the air in the cavity 72 formed by the upper mold 10 and the lower mold 11 to the outside. Thus, in the resin sealing device 100, for example, the size of the moving mechanism for moving the exhaust port pin in the up-down direction can be suppressed, and the enlargement in the mold closing direction can be suppressed.

Furthermore, the moving mechanism of the resin sealing device 100 including the first moving body 30 and the second moving body 31 and one of the upper movable pin 18 and the lower movable pin 19 is provided corresponding to each of the upper mold 10 and the lower mold 11. Thus, in the resin sealing device 100, enlargement in the mold clamping direction can be further suppressed.

Further effects or variations can be easily obtained by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the specific details and representative implementation forms described and described above. Therefore, various changes can be made without departing from the spirit or scope of the general concept of the invention defined by the attached patent application scope and its equivalents. [Notes] Note (1): A resin sealing device, characterized by comprising: a first movable body, which moves in a first direction intersecting with the direction of clamping the upper mold and the lower mold, i.e., the clamping direction; a second movable body, which moves in the clamping direction and in a second direction approaching one of the upper mold and the lower mold as the first movable body moves in the first direction; and a movable pin, which is mounted on the second movable body and moves in the second direction as the second movable body moves. Note (2): The resin sealing device as in Note (1), wherein the first movable body comprises: a camshaft extending in the first direction and having a cavity, i.e., a cam groove, formed in a direction inclined relative to the first direction; and the second movable body comprises: a cam follower inserted in the cam groove and moving in the cam groove as the camshaft moves in the first direction, thereby moving in the second direction; and a first plate member moving in the second direction as the cam follower moves. Note (3): A resin sealing device as in Note (2), wherein on the camshaft, a plurality of cam grooves are formed along the extension direction of the camshaft, and the cam followers are provided in plurality corresponding to each of the plurality of cam grooves. Note (4): A resin sealing device as in Note (3), wherein the second movable body comprises: a plurality of rod members, the base ends of which are mounted on the first plate member; and a second plate member, which is mounted on the front ends of the plurality of rod members; and the movable pin is mounted on the second plate member. Note (5): A resin sealing device as in any one of Notes (2) to (4), wherein the cam follower is mounted on the first plate member, and the camshaft is opposite to the side of the first plate member on which the cam follower is mounted, and moves along the side. Note (6): A resin sealing device as in Note (5), wherein the first moving body comprises a pair of camshafts, and the pair of camshafts are arranged at positions where the first plate member is sandwiched between each other. Note (7): A resin sealing device as in any one of Notes (1) to (6), comprising a plurality of movable pins. Note (8): A resin sealing device as in any one of Notes (1) to (7), wherein the movable pin is a pull pin that supports the molded product disposed in the cavity formed by the upper mold and the lower mold and is pulled out of the cavity after the resin flows into the cavity. Note (9): A resin sealing device as in any one of Notes (1) to (7), wherein the movable pin is an exhaust port pin that switches the opening and closing state of the exhaust port by entering and exiting the exhaust port having a flow path for releasing air in the cavity formed by the upper mold and the lower mold to the outside. Note (10): A resin sealing device as in any one of Notes (1) to (9), wherein the first movable body, the second movable body, and the movable pin movable mechanism are arranged corresponding to the upper mold and the lower mold.

1: Mold rod 2: Fixed platen 3: Movable platen 4: Resin seal body 5: First drive unit 6: Second drive unit 7: Transmission unit 8: Variable coupling mechanism 9: Base 10: Upper mold 11: Lower mold 12: Upper mold support unit 13: Lower mold support unit 14: Upper ejector plate member 15: Lower ejector plate member 16: First moving mechanism 17: Second moving mechanism 18: Upper movable pin 19: Lower movable pin (one example of movable pin) 20: First rod member 21: Upper drive plate member 22: Second rod member 23: Upper movable pin plate member 30: First moving body 31: Second moving body 33: Shaft guide 40: Camshaft 40a: Cam groove 50: Cam follower 51: Plate member for lower drive (one example of the first plate member) 51a: Side surface 52: Third rod member (one example of the rod member) 53: Plate member for lower movable pin (one example of the second plate member) 70: Squeeze section 71: Gutter section 72: Cavity 73: Exhaust port 74: Injection cavity 81: Plunger 90: Molded product 91: Sealing resin 100: Resin sealing device X: Area

FIG. 1 is a diagram showing an example of a state in which a molded product is sealed with resin in a resin sealing device of an embodiment. FIG. 2 is a diagram showing an outline of a moving mechanism including a movable pin in a resin sealing device of an embodiment. FIG. 3 is a diagram showing an example of a structure of a resin sealing device of an embodiment. FIG. 4 is an enlarged view of the X region shown in FIG. 3. FIG. 5 is a plan view showing a part of the second moving mechanism in a resin sealing device of an embodiment. FIG. 6 is a perspective view showing a part of the second moving mechanism in a resin sealing device of an embodiment. FIG. 7 is a side view for explaining the upward movement of the movable pin of the resin sealing device of an embodiment by the second moving mechanism. FIG8 is a side view for explaining the downward movement of the movable pin realized by the second moving mechanism of the resin sealing device of the embodiment. FIG9 is a diagram showing the movement of the movable pin realized by the first moving mechanism and the second moving mechanism when the molded product is sealed with resin in the resin sealing device of the embodiment (part 1). FIG10 is a diagram showing the movement of the movable pin realized by the first moving mechanism and the second moving mechanism when the molded product is sealed with resin in the resin sealing device of the embodiment (part 2). FIG. 11 is a diagram showing the movement of the movable pin by the first moving mechanism and the second moving mechanism when the molded product is sealed with resin in the resin sealing device of the embodiment (part 3). FIG. 12 is a diagram showing another example of the structure of the resin sealing device of the embodiment. FIG. 13 is a diagram for explaining the function of the movable pin when the movable pin is an exhaust port pin in the resin sealing device of the embodiment.

5: First drive unit

6: Second drive unit

16: First moving mechanism

17: Second moving mechanism

18: Upper movable pin

19: Lower movable pin (an example of a movable pin)

30: The first moving body

31: Second moving body

100: Resin sealing device

Claims (9)

A resin sealing device comprises: a first moving body, which moves in a first direction intersecting with the direction of closing the upper mold and the lower mold, that is, the closing direction; a second moving body, which moves in the closing direction and in a second direction approaching one of the upper mold and the lower mold as the first moving body moves in the first direction; and a movable pin, which is mounted on the second moving body and moves in the second direction as the second moving body moves; wherein The first movable body comprises: a camshaft extending in the first direction and having a cam groove formed in a direction inclined relative to the first direction; and the second movable body comprises: a cam follower inserted in the cam groove and moving in the cam groove as the camshaft moves in the first direction, thereby moving in the second direction; and a first plate member moving in the second direction as the cam follower moves. As in claim 1, the resin sealing device, wherein a plurality of cam grooves are formed on the camshaft along the extension direction of the camshaft, and a plurality of cam followers are provided corresponding to each of the plurality of cam grooves. A resin sealing device as claimed in claim 2, wherein the second movable body comprises: a plurality of rod members, the base ends of which are mounted on the first plate member; and a second plate member, which is mounted on the front ends of the plurality of rod members; and the movable pin is mounted on the second plate member. A resin sealing device as claimed in claim 1, wherein the cam follower is mounted on the first plate member, and the camshaft faces the side of the first plate member on which the cam follower is mounted, and moves along the side. A resin sealing device as claimed in claim 4, wherein the first movable body comprises a pair of camshafts, and the pair of camshafts are arranged at positions where the first plate member is sandwiched between each other. The resin sealing device of claim 1 comprises a plurality of the aforementioned movable pins. A resin sealing device as claimed in claim 1, wherein the movable pin is a pull pin that supports the molded product disposed in the mold cavity formed by the upper mold and the lower mold and is pulled out of the mold cavity after the resin flows into the mold cavity. As in claim 1, the resin sealing device, wherein the movable pin is an exhaust port pin that switches the opening and closing state of the exhaust port by entering and exiting the exhaust port having a flow path for releasing the air in the mold cavity formed by the upper mold and the lower mold to the outside. The resin sealing device of claim 1, wherein the moving mechanism including the first moving body, the second moving body, and the movable pin is arranged corresponding to each of the upper mold and the lower mold.