Resin sealing device

Abstract

To provide a resin sealing device capable of efficiently supplying work-pieces and shortening takt time.SOLUTION: A resin sealing device 1 includes: a rail 11; a plurality of press modules 3; a plurality of preheaters 9 corresponding to the respective press modules 3 (3A, 3B, and 3C); and a loader 12 that carries a workpiece W heated by one of the plurality of preheaters 9 into the press module 3 corresponding to the preheater 9. Each of the plurality of preheaters 9 is disposed at a position that does not overlap with the corresponding press module 3A in a second axis direction Y and that is closer to a first end 11L in a first axis direction X than the corresponding press module 3A.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a resin sealing device. [Background technology]

[0002] When molding a resin-sealed product by encapsulating a workpiece with a resin material, if the temperature difference between the workpiece and the resin material is too large or if the temperature of the workpiece varies, the quality of the resin-sealed product may be affected. Therefore, resin-sealing equipment is equipped with a preheater that preheats the workpiece before it is loaded into the mold of the press module. For example, as disclosed in Patent Document 1, a preheater device fixed to the material supply unit can be installed to preheat the lead frame from above and below, or as disclosed in Patent Document 2, a preheater can be installed for each press module and the distance between the preheater and the press module can be reduced, which prevents the workpiece from losing temperature while moving from the preheater to the press module. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-161567 [Patent Document 2] Japanese Patent Publication No. 2022-168457 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, Patent Document 1 discloses a conventional example in which one preheater is provided in the in-module, and a loader moves the workpiece heated by the preheater to the mold in the press module and sets the workpiece there. In this case, the workpiece is transported over a long distance between the preheater and the mold, making it easy for the workpiece to cool down. Also, if there are multiple press modules, the distances from the preheater to the mold in each press module differ, so the temperature drop of the workpiece when the mold is set varies for each module, which can affect quality.

[0005] Furthermore, in Patent Document 2, the loader that transports the workpiece heated by the preheater into the mold of the press module and the unloader that transports the resin-sealed workpiece out of the mold of the press module move on a common rail. The loader cannot move to the same position as the unloader on the rail or overtake the unloader. If the unloader occupies the position directly above the preheater located behind each press, the loader cannot lift the workpiece preheated on the preheater until the unloader moves, and the loader cannot transport the workpiece into the mold. As a result, the takt time, which is the time required to seal each workpiece, becomes longer, preventing productivity from improving.

[0006] The present invention has been made in view of the above-mentioned problems, and has an object to provide a resin sealing apparatus that can efficiently supply workpieces and shorten the takt time. [Means for solving the problem]

[0007] A resin sealing device according to one embodiment of the present invention comprises a rail extending in a first axial direction from a first end to a second end, a plurality of press modules arranged along the rail in the first axial direction, a plurality of preheaters corresponding to each of the plurality of press modules, and a loader that moves on the rail and transports a workpiece heated by one of the plurality of preheaters to the press module corresponding to that preheater, wherein each of the plurality of preheaters is positioned so as not to overlap with the corresponding press module in the second axial direction and is positioned closer to the first end in the first axial direction than the corresponding press module.

[0008] Another aspect of the resin sealing device of the present invention includes a rail extending in a first axial direction from a first end to a second end, a press module, a resin supply device that supplies resin material, and a preheater, an in-module adjacent to the press module from the first end side in the first axial direction, and a loader that moves on the rail and transports a workpiece heated by the preheater into the press module, and the preheater is positioned closer to the second end than the resin supply device in the first axial direction. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a technique relating to a resin sealing apparatus that can efficiently supply workpieces and reduce takt time. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a plan view showing an example of a resin sealing apparatus according to a first embodiment of the present invention. [Figure 2] FIG. 10 is a plan view showing an example of a resin sealing apparatus according to a second embodiment of the present invention. [Figure 3] FIG. 10 is a plan view showing an example of a resin sealing apparatus according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] A preferred embodiment of the present invention will be described with reference to the accompanying drawings. In each drawing, components with the same reference numerals have the same or similar configurations. For the sake of clarity, each drawing is illustrated with an orthogonal coordinate system consisting of X, Y, and Z axes to aid in understanding the positional relationship between the components.

[0012] In the following description, the X-axis direction is the first axis direction X, the Y-axis direction is the second axis direction Y, and the Z-axis direction is the third axis direction or up-down direction (vertical direction). Furthermore, the plane including the X-axis and Y-axis is the horizontal plane, the direction of the Z-axis arrow is the vertical upward direction, and the direction opposite to the Z-axis arrow is the vertical downward direction. When viewed from the front side of the resin sealing device 1 in FIG. 1, the X-axis direction is the left-right direction, with the positive X-axis being the right and the negative X-axis being the left. The Y-axis direction is the front-to-back direction, with the positive Y-axis being the rear and the negative Y-axis being the front. The present invention will be described in detail below with reference to the drawings.

[0013] 1 is a plan view showing an example of a resin sealing apparatus 1 according to a first embodiment of the present invention. In the example shown, the resin sealing apparatus 1 is configured as a transfer molding machine, and includes an in-module 2, multiple press modules 3, an out-module 4, multiple preheaters 9, a loader mechanism 10, etc. The resin sealing apparatus 1 is not limited to a transfer molding machine, and may be a compression molding machine or the like.

[0014] The loader mechanism 10 includes a rail 11, a loader 12, an unloader 13, etc. The rail 11 extends in a first axial direction X from a first end 11L to a second end 11R. In the illustrated example, the first end 11L is the left end, and the second end 11R is the right end. The loader 12 and unloader 13 move on the common rail 11.

[0015] Each of the multiple press modules 3 includes a press mechanism 31, a mold 32, etc. The press mechanism 31 closes and opens the mold 32. The mold 32 sandwiches the workpiece W between an upper mold and a lower mold and seals it with a resin material. In the illustrated example, the multiple press modules 3 include three units, namely, first to third press modules 3A, 3B, and 3C.

[0016] The multiple preheaters 9 correspond one-to-one to the multiple press modules 3. In the illustrated example, the multiple preheaters 9 include three units, first to third preheaters 9A, 9B, and 9C, where the first preheater 9A corresponds to the first press module 3A, the second preheater 9B corresponds to the second press module 3B, and the third preheater 9C corresponds to the third press module 3C. The number of press modules 3 and preheaters 9 is not limited to the illustrated example and may be two, or four or more. There may also be a one-to-many correspondence with the multiple press modules 3.

[0017] The in-module 2, the multiple press modules 3, and the outer module 4 are aligned in a row along the rail 11. The outer module 4 is disposed on the opposite side of the in-module 2 from each of the multiple press modules 3. The in-module 2 is adjacent to the first press module 3A from its first end 11L in the first axial direction X. The outer module 4 is adjacent to the third press module 3C from its second end 11R in the first axial direction X. In the following description, the first end 11L side closer to the in-module 2 may be referred to as the upstream side of the resin sealing apparatus 1, and the second end 11R side closer to the outer module 4 may be referred to as the downstream side of the resin sealing apparatus 1. The first press module 3A is adjacent to the second press module 3B from its first end 11L side, i.e., the upstream side.

[0018] In the first embodiment, the multiple preheaters 9 include one closest to the first end 11L in the first axial direction X and at least one other preheater excluding the first preheater 9A. In the illustrated example, the first preheater 9A is the one closest to the first end 11L in the first axial direction X, and the second and third preheaters 9B and 9C are the at least one other preheater excluding the first preheater 9A that is the one closest to the first end 11L in the first axial direction X.

[0019] Each of the at least one preheater is disposed so as to face, in the second axial direction Y, the press module adjacent to the corresponding press module from the first end 11L side in the first axial direction X. For example, the second preheater 9B is disposed so as to face, in the second axial direction Y, the first press module 3A adjacent to the second press module 3B corresponding to the second preheater 9B from the first end 11L side in the first axial direction X. Similarly, the third preheater 9C is disposed so as to face, in the first axial direction X, the second press module 3B adjacent to the third press module 3C corresponding to the third preheater 9C from the first end 11L side.

[0020] In other words, the preheater 9B is located one position to the left of the corresponding press module 3B, i.e., on the negative side in the first axis direction X, and is disposed at a position where it does not overlap with the corresponding press module 3B in the second axis direction Y. The position where the preheater 9B does not overlap with the corresponding press module 3B in the second axis direction Y is a position where the preheater 9B does not overlap with the corresponding press module 3B when viewed from the second axis direction Y (i.e., when viewed from the front). When viewed from the second axis direction Y, the preheater 9B is disposed so as not to protrude from the range of the press module 3A one position to the left that is adjacent to the press module 3B corresponding to the preheater 9B from the first end 11L side.

[0021] That is, the left side surface of the preheater 9B is located within the range of the press module 3A in the first axial direction (left-right direction) X, i.e., to the right of the left side surface of the press module 3A. Similarly, the right side surface of the preheater 9B is located within the range of the press module 3A in the first axial direction X, i.e., to the left of the right side surface of the press module 3A. Furthermore, the right side surface of the preheater 9B is located outside the range of the corresponding press module 3B in the first axial direction X, i.e., to the left of the left side surface of the corresponding press module 3B.

[0022] Since the resin sealing apparatus 1 is transported and installed in module units, the preheaters 9 are less likely to be damaged during transportation if they do not protrude from the modules. The distance in the first axis direction X between the center of a preheater 9B and the center of the corresponding press module 3B is preferably approximately the same as the width of one of the multiple press modules.

[0023] The in-module 2 supplies the workpieces W to the loader 12. In the case of transfer molding, the in-module 2 may have the function of aligning a pair of workpieces W so that they face each other. In the case of compression molding, the in-module 2 may also align a pair of workpieces W so that they face each other. The in-module 2 is equipped with a workpiece supply device 21, a resin supply device 22, etc.

[0024] The resin supply device 22 supplies resin material to the loader 12. In the illustrated example, the resin supply device 22 supplies resin tablets to the loader 12. The first preheater 9A, which is the one closest to the first end 11L in the first axial direction X, is arranged closer to the second end 11R, i.e., downstream, of the resin supply device 22 of the in-module 2. More specifically, when viewed from the second axial direction Y, the first preheater 9A is arranged so as not to protrude from the range of the in-module 2. The multiple preheaters 9 are arranged in a line along the movement trajectory of the loader 12.

[0025] The work supply device 21 supplies the workpieces W to the loader 12. In the illustrated example, the workpiece supply device 21 includes a supply magazine 211, a pick and place 212, a primary preheater 213, etc. The pick and place 212 aligns the workpieces W supplied from the supply magazine 211 on the primary preheater 213. The primary preheater 213 is disposed closer to the first end 11L than the multiple preheaters 9 in the first axial direction X, and heats the workpieces W.

[0026] The loader 12 lifts the workpiece W heated by the primary preheater 213 and places it on each of the multiple preheaters 9. When the in-module 2 includes the primary preheater 213, each of the multiple preheaters 9 may be referred to as a secondary preheater 9A, 9B, or 9C. Note that the pick-and-place 212 and the primary preheater 213 are optional components and may be replaced with other components or omitted.

[0027] The loader 12 moves on the rails 11 closer to the first end 11L than the unloader 13, and carries the workpiece W heated by each of the multiple preheaters 9 (for example, the first preheater 9A) into the press module corresponding to that preheater (i.e., the first press module 3A corresponding to the first preheater 9A). The unloader 13 moves on the rails 11 closer to the second end 11R than the loader 12, and carries the workpiece W' resin-sealed in each of the multiple press modules 3 out of that press module.

[0028] The out-module 4 collects the resin-sealed workpiece W' from the unloader 13. The out-module 4 includes a degator 41, a storage magazine 42, etc. The degator 41 separates unnecessary resin from the resin-sealed workpiece W'. In the illustrated example, the degator 41 includes a pallet 411, degating hands 412, etc. In the case of compression molding, the step of separating unnecessary resin from the workpiece W' is omitted. In addition, the storage magazine 42 may be a slit magazine or a stack magazine.

[0029] The pallet 411 moves back and forth in the second axis direction Y so as to cross directly below the de-gating hand 412 which moves in the up and down direction Z, and receives the resin-sealed workpiece W' from the unloader 13 and delivers the workpiece W' from which unnecessary resin has been removed to the storage magazine 42. The de-gating hand 412 sandwiches the workpiece W' placed on the pallet 411 and separates the unnecessary resin.

[0030] One feature of the resin sealing apparatus of the first embodiment is that each of the multiple preheaters 9 is arranged one position to the left of the corresponding press module in the first axis direction X, closer to the first end 11L (on the negative side in the first axis direction X), so as not to overlap with the corresponding press module in the second axis direction Y. For example, the first preheater 9A is arranged closer to the first end 11L in the first axis direction X than the first press module 3A so as not to overlap with the first press module 3A corresponding to the first preheater 9A in the second axis direction Y. It is preferable that the distance in the first axis direction X between the center of the first preheater 9A and the center of the corresponding press module 3A is approximately the same as the width of one of the multiple press modules 3.

[0031] Similarly, the second preheater 9B is disposed one position to the left of the second press module 3B in the first axial direction X, closer to the first end 11L (negative side in the first axial direction X), so as not to overlap with the corresponding second press module 3B in the second axial direction Y. The third preheater 9C is disposed one position to the left of the third press module 3C in the first axial direction X, closer to the first end 11L (negative side in the first axial direction X), so as not to overlap with the corresponding third press module 3C in the second axial direction Y.

[0032] Note that the fact that the first preheater 9A and the corresponding first press module 3A do not overlap in the second axis direction Y means that, in the first axis direction X, the end of the first preheater 9A on the second end 11R side (the right end in the illustrated example) is located further toward the first end 11L (the left end in the illustrated example) than the end of the first press module 3A on the first end 11L side (the left end in the illustrated example). In other words, the first preheater 9A is located one press module to the left of the first press module 3A on the first end 11L side (on the negative side in the first axis direction X).

[0033] According to the resin sealing apparatus 1 of the first embodiment configured as described above, the loader 12 can lift the workpiece W from the first preheater 9A without interfering with the unloader 13, which is carrying out the resin-sealed workpiece W' from the mold of the first press module 3A. For example, if the preheater is located at a position (9B) immediately behind the Y axis of the first press module 3A (on the positive side of the second axis direction Y), the loader 12 cannot lift the workpiece W unless the unloader 13 moves to the right, i.e., on the positive side of the first axis direction X. In addition, in the first embodiment, the preheater 9 is located on the left side by the width of one press module, i.e., on the negative side of the first axis direction X. Therefore, the preheater 9 can hold the workpiece W before the loader 12 moves, and the loader 12 can move in as the unloader 13 moves. This allows the workpiece W to be supplied efficiently, thereby shortening the takt time.

[0034] That is, as the unloader 13 moves, the loader 12 moves to the supply line to the die of the press module 3A, grabs the workpiece W in the preheater, and then a loader hand (not shown) below the loader 13 extends to the die 32 to set the workpiece W in the die 32. However, in the first embodiment, by providing the preheater 9A on the left side of the press module 3A, the loader 12 can grab the workpiece W in advance, so that the unloader 13 moves to the right, i.e., the positive side of the first axis direction X, from the supply line to the die 32, and the loader 12 simultaneously moves to the supply line to the die 32 on the right, and upon completion of the movement, the loader hand below the loader 12 extends to set the workpiece W in the die 32. The major difference is that the loader hand below the loader 12 descends to go to the preheater 9 to retrieve the workpiece W, grabs the workpiece W, the loader hand rises, and the up and down movement time until the loader 12 starts to transport the workpiece W to the die can be shortened before the loader 12 moves to the press center.

[0035] In the first embodiment, the loader 12, which has lifted the workpiece W from each of the multiple preheaters 9 except for the one 9A that is closest to the first end 11L in the first axial direction X, can wait with the workpiece at the position of the previous press module 3A, 3B, which is adjacent to the left of the press modules 3B, 3C corresponding to the preheaters.

[0036] Therefore, for example, the temperature of the workpiece W is less likely to drop between the time the workpiece W is heated by the second preheater 9B and the time it is carried into the second press module 3B. Furthermore, in the first embodiment, the travel distance from the second preheater 9B to the second press module 3B is equal to the travel distance from the third preheater 9C to the third press module 3C, so the temperature of the workpiece W carried into each of the multiple press modules 3 is less likely to vary. This eliminates quality variations that arise from differences in transport time to the molds mounted in each press module, making it possible to maintain consistent quality for the resin-sealed workpiece W'. Furthermore, the required preheating time can be secured without reducing productivity compared to the case of using only a primary preheater.

[0037] In the first embodiment, the resin supply device 22 is not disposed between the first preheater 9A closest to the first end 11L and the first press module 3A closest to the first end 11L in the first axial direction X, so the temperature of the workpiece W heated by the first preheater 9A is less likely to drop before being carried into the corresponding press module 3A. Also, because the resin supply device 22 is disposed on the resin first end 11L side, the workpiece W is less susceptible to the effects of dust scattering when transferring the resin to the loader.

[0038] As another example, if the workpiece W is made up of a plurality of singulated lead frames and the plurality of lead frames are transported on a carrier, it takes longer to align them in the workpiece supply device than it does to align a single, unsingulated workpiece W. In the first embodiment, the workpiece W is aligned on the primary preheater 213, so the workpiece W can be heated even while it is being aligned. The first embodiment is particularly suitable for workpieces W that take a long time to align.

[0039] Next, second and third embodiments of the present invention will be described. Note that components having the same or similar functions as those described in the first embodiment are given the same reference numerals, and the corresponding descriptions in the first embodiment should be referred to, and descriptions thereof will be omitted here. Furthermore, the components other than those described below are the same as those in the first embodiment.

[0040] 2 is a plan view showing an example of a resin sealing apparatus 1 according to a second embodiment of the present invention. One of the features of the second embodiment is that there is only one preheater and one press module, i.e., only a first preheater 9A and a first press module 3A, rather than multiple preheaters and press modules. As in the first embodiment, the in-module 2 is adjacent to the first press module 3A from the first end 11L side in the first axial direction X. The first preheater 9A is disposed closer to the second end 11R than the resin supply device 22 in the first axial direction X.

[0041] According to the second embodiment, as in the first embodiment, the loader 12 can lift the workpiece W from the first preheater 9A without interfering with the unloader 13 that is carrying out the resin-sealed workpiece W' from the first press module 3A. Therefore, the unloader 13 ejects the resin-sealed workpiece W' into the mold 32 and moves to the right of the work supply line in front of the first press module 3A, while the loader 12 picks up the workpiece W from the preheater 9A and moves to the work supply line. Compared to when the loader 12 enters the work supply line and then picks up the workpiece W, there is no waiting time, so the workpiece W can be supplied efficiently and the takt time can be shortened.

[0042] In the second embodiment, similarly to the first embodiment, the resin supply device 22 is not disposed between the preheater 9 and the corresponding press module 3, and therefore the travel distance of the loader 12 that carries the workpiece W heated by the preheater 9 into the press module 3 can be minimized. The temperature of the workpiece W is less likely to drop between being heated by the preheater 9 and being carried into the press module 3, and the quality of the resin-sealed workpiece W' can be improved. In addition, because the resin supply device 22 is disposed on the side of the first resin end 11L, the resin tablet can be less susceptible to the effect of dust scattering when being handed over to the loader 12.

[0043] 3 is a plan view showing an example of a resin sealing apparatus 1 according to a third embodiment of the present invention. The third embodiment is characterized by further including a primary preheater 14 that moves together with the loader 12. As in the first embodiment, the loader 12 places the workpiece W heated by the primary preheater 14 onto each of the multiple preheaters 9. Furthermore, the loader 12 lifts the workpiece W from each of the multiple preheaters 9A, 9B, and 9C, and carries the workpiece W into the press module 3 corresponding to the preheater 9.

[0044] According to the third embodiment, as in the first embodiment, the loader 12 can lift the workpiece W from the first preheater 9A without interfering with the unloader 13, which is carrying out the resin-sealed workpiece W' from the first press module 3A. Because the unloader 13 moves to the right of the workpiece supply line in front of the first press module 3A and the loader 12 can enter the workpiece supply line, the loader 12 does not need to grab the workpiece W after arriving at the workpiece supply line. This eliminates the loader 12's waiting time, allowing the workpiece W to be supplied efficiently and shortening the takt time. Furthermore, compared to a system using only a moving primary preheater 14, the required preheating time can be secured without reducing productivity. In the third embodiment, the moving primary preheater 14 can heat the workpiece W until just before it is transferred to each preheater 9A. Furthermore, the operation of the loader 12 moving to receive the next workpiece W from the primary preheater 14 after placing the workpiece W in the mold can be omitted.

[0045] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The elements of the embodiments, as well as their arrangement, materials, conditions, shapes, sizes, etc., are not limited to those illustrated and can be modified as appropriate. Furthermore, configurations shown in different embodiments can be partially substituted or combined with each other.

[0046] For example, in each of the first to third embodiments, the first preheater 9A may be configured to be movable horizontally, and when a lifting member 221 (shown in Figure 3), which is part of the resin supply device 22 and moves in the vertical direction Z, rises toward the loader 12, the first preheater 9A may be configured to move to positions D and E in the vertical direction Z so as not to overlap with the lifting member 221.

[0047] In this case, the remainder 222 (shown in FIG. 3) of the resin supply device 22 excluding the lifting member 221 may overlap the first preheater 9A in the vertical direction Z. The position where the lifting member 221 is retracted may be a position D moved in the first axial direction X, or a position E moved in the second axial direction Y. An example of the lifting member 221 is a tablet holder that delivers a resin tablet to the loader 12.

[0048] [Appendix 1] The resin sealing device (1) includes a rail (11) extending in a first axial direction (X) from a first end (11L) to a second end (11R), a plurality of press modules (3) arranged along the rail (11) in the first axial direction (X), a plurality of preheaters (9) corresponding to each of the plurality of press modules (3), and a loader (12) that moves on the rail (11) and transports a work (W) heated by one of the plurality of preheaters (9) to the press module (3A) corresponding to the preheater (9A), and each of the plurality of preheaters (9) is arranged in a position that does not overlap with the corresponding press module (3A) in the second axial direction (Y) and is closer to the first end (11L) in the first axial direction (X) than the corresponding press module (3A).

[0049] According to Supplementary Note 1 above, since each preheater (9A) is arranged so as not to overlap with the corresponding press module (3A) in the second axis direction (Y), the loader (12) can lift the workpiece (W) from the preheater (9A) without interfering with, for example, the unloader (13) that is carrying out the resin-sealed workpiece (W') from the corresponding press module (3A). Therefore, the unloader 13 can move to the right of the workpiece supply line in front of the corresponding press module (3A), and the loader 12 can enter the workpiece supply line. Furthermore, since the loader 12 does not grab the workpiece W after arriving at the workpiece supply line, there is no waiting time for the loader 12, and the workpiece (W) can be supplied efficiently, thereby shortening the takt time.

[0050] [Appendix 2] In the above Supplementary Note 1, the preheater (9B) may be disposed so as not to extend beyond the range of the press module (3A) adjacent to the corresponding press module (3B) from the first end (11L) side when viewed from the second axis direction (Y). The distance in the first axis direction (X) between the center of the preheater (9B) and the center of the corresponding press module (3B) may be approximately the same as the width of one of the multiple press modules (3).

[0051] According to the above Supplementary Note 2, the loader (12) can wait at the position of the press module (3A) adjacent to the corresponding press module (3B). Therefore, when the workpiece (W) heated by each preheater (9B) is carried into the corresponding press module (3B), the temperature of the workpiece (W) is less likely to decrease between the time it is heated by each preheater (9B) and the time it is carried into the corresponding press module (3B).

[0052] [Appendix 3] In the above Supplementary Note 1 or 2, the press unit may further include an in-module (2) adjacent to one (3A) of the plurality of press modules (3) that is closest to the first end (11L) in the first axial direction (X) from the first end (11L) side, and the in-module (2) may include a resin supply device (22) that supplies resin material, and one (9A) of the plurality of preheaters (9) that is closest to the first end (11L) in the first axial direction (X) and is arranged closer to the second end (11R) than the resin supply device (22).

[0053] According to Supplementary Note 3, since the resin supply device 22 is not disposed between the preheater 9A closest to the first end 11L and the press module 3A closest to the first end 11L, the travel distance of the loader 12 can be minimized when the workpiece W heated by the preheater 9A is carried into the corresponding press module 3A. The temperature of the workpiece W is less likely to decrease after being heated by the preheater 9A and before being carried into the press module 3A.

[0054] [Appendix 4] In the above Supplementary Note 3, the in-module (2) may further include a primary preheater (213) arranged closer to the first end (11L) than the plurality of preheaters (9) in the first axial direction (X), and the loader (12) may place the workpiece (W) heated by the primary preheater (213) on each of the plurality of preheaters (9) (9A).

[0055] The in-module 2 aligns the workpieces (W) so that the loader (12) can easily transport them. According to the above-mentioned supplementary note 4, the workpieces (W) can be aligned on the primary preheater (213) and heated while being aligned. When the workpieces (W) are composed of a plurality of individualized lead frames, aligning the workpieces (W) takes time, so the above-mentioned supplementary note 4 is particularly suitable.

[0056] [Appendix 5] In the above Supplementary Note 1, the apparatus may further include a primary preheater (14) that moves together with the loader (12), and the loader (12) may place the workpiece (W) heated by the primary preheater (14) on each of the plurality of preheaters (9) (9A).

[0057] According to the above supplementary note 5, the workpieces (W) can be heated by the moving primary preheater (14) until just before being transferred to each preheater (9A).

[0058] [Appendix 6] The resin sealing device (1) includes a rail (11) extending in a first axial direction (X) from a first end (11L) to a second end (11R), a press module (3A), a resin supply device (22) that supplies resin material, and a preheater (9A), and includes an in-module (2) adjacent to the press module (3A) from the first end (11L) side in the first axial direction (X), and a loader (12) that moves on the rail (11) and transports a work (W) heated by the preheater (9A) into the press module (3A), and the preheater (9A) is arranged closer to the second end (11R) than the resin supply device (22) in the first axial direction (X).

[0059] According to Supplementary Note 6, since the resin supply device 22 is not disposed between the preheater 9A and the press module 3A, the travel distance of the loader 12 that carries the workpiece W heated by the preheater 9A into the press module 3A can be minimized. The temperature of the workpiece W is less likely to decrease between being heated by the preheater 9A and being carried into the press module 3A. [Explanation of symbols]

[0060] 1...resin sealing device, 2...in-module, 3...plurality of press modules, 3A...first press module, 3B...second press module, 3C...third press module, 4...out-module, 9...plurality of preheaters, 9A, 9B, 9C...first to third preheaters, 10...loader mechanism, 11...rail, 11L...first end, 11R...second end, 12...loader, 13...unloader, 14...primary preheater moving with loader, 21...work supply device placement, 22...resin supply device, 31...press mechanism, 32...mold, 41...degator, 42...storage magazine, 211...supply magazine, 212...pick and place, 213...primary preheater arranged in module, 221...lifting member, 222...remaining part of resin supply device excluding lifting member, 411...pallet, 412...degating hand, W...work before resin sealing, W'...work after resin sealing, X...first axis direction, Y...second axis direction, Z...up and down direction.

Claims

1. a rail extending in a first axial direction from a first end to a second end; a plurality of press modules arranged in the first axial direction along the rail; a plurality of preheaters corresponding to the plurality of press modules; a loader that moves on the rail and carries a workpiece heated by any one of the plurality of preheaters into a press module corresponding to that preheater, each of the plurality of preheaters is disposed at a position not overlapping with the corresponding press module in a second axial direction perpendicular to the first axial direction, and closer to a first end than the corresponding press module in the first axial direction; Resin sealing equipment.

2. the preheater is disposed within a range of a press module adjacent to the corresponding press module in the second axial direction. The resin sealing device according to claim 1 .

3. The preheater is disposed with respect to the corresponding press module at a distance equal to or greater than the width of the press module. The resin sealing device according to claim 1 .

4. further comprising an in-module adjacent to one of the plurality of press modules closest to the first end in the first axial direction, from the first end side; The in-module is a resin supplying device for supplying a resin material; a preheater that is one of the plurality of preheaters closest to the first end in the first axial direction and is arranged closer to the second end than the resin supply device, The resin sealing device according to claim 1 .

5. the in-module further includes a primary preheater disposed closer to the first end than the plurality of preheaters in the first axial direction, the loader places the workpiece heated by the primary preheater on each of the plurality of preheaters; The resin sealing device according to claim 4.

6. a primary preheater that moves with the loader; the loader places the workpiece heated by the primary preheater on each of the plurality of preheaters; The resin sealing device according to claim 1 .

7. a rail extending in a first axial direction from a first end to a second end; a press module; an in-module including a resin supplying device for supplying a resin material and a preheater, the in-module being adjacent to the press module from the first end side in the first axial direction; a loader that moves on the rail and carries the workpiece heated by the preheater into the press module; the preheater is disposed closer to the second end than the resin supply device in the first axial direction. Resin sealing equipment.

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