Five-connecting-rod longitudinally-arranged driving device of semiconductor packaging press

Abstract

The utility model discloses a driving device with longitudinally arranged five connecting rods for a semiconductor packaging press, which relates to the technical field of semiconductor packaging and has the advantage of reducing the installation influence of two upright posts on connecting rods for driving a lower fixed seat to lift. According to the technical scheme, the device is characterized by comprising two oppositely-distributed connecting blocks arranged on the lower end face of a lower fixing base, the connecting line of the two connecting blocks is parallel to the plate face of a stand column, each connecting block is rotationally connected with a rotating shaft, and the axis of each rotating shaft is perpendicular to the plate face of the stand column; the two ends of each rotating shaft extend out of the connecting blocks, the extending ends of the rotating shafts are fixedly connected with first connecting rods, and the lower large die holder is provided with a power piece which drives the first connecting rods to swing so as to drive the lower fixing base to ascend and descend.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, specifically to a five-link longitudinally mounted drive device for a semiconductor packaging press. Background Technology

[0002] IC semiconductor products include leadframes and colloids located within the leadframes. The colloids are extruded onto the leadframes using a press and a mold. To double production capacity, the number of molds is usually increased to two.

[0003] Chinese Patent Application No. 2024113764248 discloses a hot-press servo encapsulation double-layer press, including a lower large mold base located on the ground and two oppositely distributed plate columns disposed on the upper surface of the lower large mold base. The upper ends of the two columns are connected by an upper large mold base, and mold one and mold two distributed vertically are connected between the two columns by a connector; it also includes a driving component disposed on the lower large mold base, the driving component driving mold one and mold two to open and close simultaneously; the connector includes components that are slidably connected between the two columns. A U-shaped support frame is provided between two opposing vertical plates of the support frame, with a lower fixed seat slidably connected between them. A lower mold base of mold one is fixedly connected to the upper end of the lower fixed seat. An upper mold base corresponding to the lower mold base is provided on the horizontal plate of the support frame. An upper mold base of mold two is provided on the lower end of the upper mold base. An upper fixed seat is fixedly provided on the side of the support frame away from the upper mold base. A lower mold base corresponding to the upper mold base is provided on the upper fixed seat. The driving component drives the lower fixed seat to move up and down.

[0004] The driving component includes two lead screws rotatably connected to the bottom of the mounting slot. The two lead screws are connected by a lifting block, and the lifting block is threadedly connected to both lead screws. Two sets of driving connecting rods are hinged to the outer wall of the lifting block, which are distributed in pairs opposite to each other. Each set of driving connecting rods corresponds to the two ends of one lead screw. Each driving connecting rod has a first connecting rod and a second connecting rod hinged at the end away from the lifting block. Each first connecting rod has its end away from the driving connecting rod hinged to an extension block, and each second connecting rod has its end away from the driving connecting rod hinged to a lower fixed seat.

[0005] However, in the prior art, the second connecting rods that are hinged to the lower fixed base and distributed to the left and right are close to the two columns respectively. Therefore, the distance between the two columns needs to be large enough to allow the second connecting rod and the first connecting rod to swing. If the distance between the two columns is reduced, it is impossible to install the connecting rod that drives the lower fixed base to rise and fall.

[0006] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Summary of the Invention

[0007] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a five-link longitudinally mounted drive device for a semiconductor packaging press, which has the advantage of reducing the installation impact of the two columns on the linkage that drives the lower fixed seat to rise and fall.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] This utility model provides a five-link longitudinal drive device for a semiconductor packaging press, including two oppositely distributed connecting blocks disposed on the lower end face of the lower fixed base. The line connecting the two connecting blocks is parallel to the surface of the column plate. Each connecting block is rotatably connected to a rotating shaft. The axis of the rotating shaft is perpendicular to the surface of the column plate. Each rotating shaft has connecting blocks extending from both ends, and a first connecting rod is fixedly connected to one of the extended ends. The lower large mold base is provided with a power component that drives the first connecting rod to swing, thereby driving the lower fixed base to rise and fall.

[0010] By adopting the above technical solution, the line connecting the two connecting blocks on the lower end face of the lower fixed seat is parallel to the plate surface of the column. At this time, the two connecting blocks are distributed front and back between the two columns. Therefore, the first connecting rod installed on the two connecting blocks is also distributed front and back. When the first connecting rod swings, it will not swing towards or away from the column, effectively compressing the left and right lateral space and effectively reducing the width of the equipment. The reduction in equipment width makes the mold surface more reasonably compressed and the mold closing surface more evenly stressed. Therefore, it reduces the installation influence of the two columns on the first connecting rod that drives the lower fixed seat to rise and fall. The power component drives the first connecting rod to swing, and the first connecting rod is hinged on the connecting block, which facilitates the raising and lowering of the lower fixed seat.

[0011] Preferably, a second connecting rod is rotatably connected between two first connecting rods located on the same rotating shaft, and a downwardly extending groove is provided on the lower large mold base. The power component includes two lead screws rotatably connected to the bottom of the groove. The two lead screws are connected by a lifting block, and each lead screw is threadedly connected to the lifting block. The end of the second connecting rod away from the first connecting rod is rotatably connected to the upper end face of the lower large mold base. The bottom of the lower large mold base is provided with a driving component for driving the two lead screws to rotate.

[0012] The lifting block is rotatably connected to a third link below each of the second links. The end of the third link away from the lifting block is hinged to the second link. The hinge point A between the second link and the first link, the hinge point B between the second link and the upper end face of the lower large mold base, and the hinge point C between the second link and the third link form the three corner points of a triangle.

[0013] Preferably, the upper surface of the lower large mold base is provided with two oppositely distributed mounting plates. The two mounting plates are located on opposite sides of the two columns, and the upper ends of the two mounting plates are connected by a rectangular frame. The upper ends of the two lead rods pass through the rectangular frame. The upper surface of the rectangular frame is provided with an inverted U-shaped connecting plate. The two vertical ends of the connecting plate are installed on the opposite frame walls of the rectangular frame by bolts, and the horizontal part is rotatably connected to the upper ends of the two lead rods.

[0014] Preferably, the rectangular frame has inclined surfaces on both sides facing the two first connecting rods. The lower end of the inclined surface extends out of the lower end face of the rectangular frame, and the upper end extends out of one side of the rectangular frame facing the first connecting rod. The length of the inclined surface is greater than the distance between the two first connecting rods on a connecting block.

[0015] Preferably, the wall thickness at the inclined surface of the rectangular frame is greater than the wall thickness at other locations of the rectangular frame.

[0016] Preferably, the second link has an opening slot at the hinge position with the third link for the end of the third link to enter, and the third link is rotatably connected in the opening slot via a power shaft.

[0017] Preferably, the lower end of the lower mold base is provided with several support feet to support the lower mold base off the ground. The lower ends of the two lead screws extend out of the bottom of the lower mold base. The driving component includes a pulley 1 coaxially fixedly mounted on one end of the two lead screws extending out of the bottom of the lower mold base. A drive shaft is rotatably connected to the upper end of the lower mold base on one side next to the column. The lower end of the drive shaft passes through the bottom of the lower mold base and is coaxially fixedly connected to a pulley 3. The pulley 3 and the two pulleys 1 are connected by an annular belt 1. The lower mold base is provided with an electric motor to drive the drive shaft to rotate.

[0018] Preferably, a second pulley is coaxially fixedly connected to the upper end of the drive shaft, and a drive shaft is rotatably connected to the upper surface of the lower large mold base. A fourth pulley is coaxially fixedly connected to the drive shaft. An inverted U-shaped cover plate covering the upper end of the drive shaft is provided on the upper surface of the lower large mold base. The fourth pulley and the second pulley are connected by a ring belt. The motor is located at the upper end of the cover plate, and the rotation shaft of the motor extends into the cover plate and drives the drive shaft to rotate. The diameter of the fourth pulley is smaller than the diameter of the second pulley.

[0019] Preferably, the upper end face of the lower large mold base is provided with guide rails on both sides of the drive shaft. The length direction of the guide rails is perpendicular to the length direction of the annular belt. A slide plate is slidably connected to the guide rails. The drive shaft is rotatably connected to the slide plate. The slide plate is provided with two vertical plates distributed along the length direction of the annular belt. The upper ends of the two vertical plates are connected by a horizontal plate. The upper end of the drive shaft is rotatably connected to the horizontal plate. The slide plate is provided with a long strip-shaped adjustment groove distributed along the length direction of the guide rail at the position corresponding to the guide rail. The upper end face of the slide plate is provided with a locking screw that passes through the adjustment groove and is threaded to the upper end face of the guide rail. The lower large mold base is provided with a long strip-shaped adjustment groove for the drive shaft and the pulley to pass through. The adjustment grooves are parallel to each other.

[0020] The upper end face of the lower large mold base is provided with an adjustment plate that moves perpendicular to the length direction of the second annular belt. A pressure wheel is rotatably connected to the adjustment plate to press the second annular belt onto the fourth and second pulleys. A locking groove is provided at the end of the adjustment plate away from the pressure wheel, which is distributed along the length direction of the adjustment plate. A pressure screw is threaded to the upper end face of the lower large mold base. The pressure screw passes through the locking groove and enters the upper end face of the lower large mold base.

[0021] Preferably, the bottom of the lower mold base is rotatably connected to two clamping rollers, one of which is located on one side of the two pulleys, and the other clamping roller is located between the pulley and the pulley.

[0022] The beneficial effects of this utility model are as follows: the line connecting the two connecting blocks on the lower end face of the lower fixed seat is parallel to the plate surface of the column. At this time, the two connecting blocks are distributed front and back between the two columns. Therefore, the first connecting rod installed on the two connecting blocks is also distributed front and back. When the first connecting rod swings, it will not swing towards or away from the column, effectively compressing the left and right lateral space and effectively reducing the width of the equipment. The reduction in equipment width makes the mold surface more reasonably compressed and the mold closing surface more evenly stressed. Therefore, it reduces the installation influence of the two columns on the first connecting rod that drives the lower fixed seat to rise and fall. The power component drives the first connecting rod to swing, and the first connecting rod is hinged on the connecting block, which facilitates the raising and lowering of the lower fixed seat. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0025] Figure 2 This is a schematic diagram illustrating the structure of the lead screw in this embodiment;

[0026] Figure 3 This is a structural schematic diagram illustrating the second link in this embodiment;

[0027] Figure 4 This is a schematic diagram illustrating the structure of the annular belt in this embodiment;

[0028] Figure 5 This is a schematic diagram illustrating the structure of the adjustment plate in this embodiment.

[0029] Explanation of reference numerals in the attached figures:

[0030] In the diagram: 1. Lower fixed base; 11. Connecting block; 12. First connecting rod; 121. Second connecting rod; 122. Opening slot; 13. Lead screw; 131. Lifting block; 132. Third connecting rod; 14. Belt pulley one; 2. Column; 3. Lower large mold base; 31. Mounting plate; 32. Rectangular frame; 33. Connecting plate; 34. Inclined surface; 35. Support leg; 36. Drive shaft; 361. Belt pulley three; 36 2. Belt 1; 363. Pulley 2; 37. Drive shaft; 371. Pulley 4; 372. Cover plate; 373. Belt 2; 374. Motor; 38. Guide rail 1; 381. Slide plate; 382. Vertical plate; 383. Horizontal plate; 384. Adjustment groove 1; 385. Adjustment groove 2; 386. Adjustment plate; 387. Pressure wheel 1; 388. Locking groove; 39. Pressure wheel 2. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] A five-link longitudinally mounted drive mechanism for a semiconductor packaging press, such as... Figure 1 and Figure 2The system includes two opposing connecting blocks 11 disposed on the lower end face of the lower fixed base 1. The length direction of the connecting blocks 11 is distributed along the direction perpendicular to the plate surface of the column 2, and the line connecting the two connecting blocks 11 is parallel to the plate surface of the column 2. Each connecting block 11 is rotatably connected to a rotating shaft (not shown in the figure). The axis of the rotating shaft is perpendicular to the plate surface of the column 2. Each end of the rotating shaft extends out of the connecting block 11, and a first connecting rod 12 is fixedly connected to one of the extended ends. The lower large mold base 3 is provided with a power component that drives the first connecting rod 12 to swing, thereby driving the lower fixed base 1 to rise and fall. The lower fixed base 1, the plate-shaped column 2, and the lower large mold base 3 are all disclosed in Chinese Patent Application No. 2024113764248, which discloses a lower fixed base, column, and lower large mold base in a hot-press servo encapsulation double-layer press.

[0033] like Figure 1 and Figure 2 The line connecting the two connecting blocks 11 on the lower end face of the lower fixed seat 1 is parallel to the plate surface of the column 2. At this time, the two connecting blocks 11 are distributed front and back between the two columns 2. Front and back refers to the direction perpendicular to the line connecting the two columns 2. Therefore, the first connecting rod 12 installed on the two connecting blocks 11 is also distributed front and back. When the first connecting rod 12 swings, it will not swing towards or away from the column 2, effectively compressing the left and right lateral space and effectively reducing the width of the equipment. The width of the equipment is the direction of the line connecting the two columns 2. The reduction of the equipment width makes the mold surface more reasonably compressed and the mold closing surface more evenly stressed. Therefore, the installation influence of the two columns 2 on the first connecting rod 12 that drives the lower fixed seat 1 to rise and fall is reduced. The power component drives the first connecting rod 12 to swing, and the first connecting rod 12 is hinged on the connecting block 11, which facilitates the raising and lowering of the lower fixed seat 1.

[0034] like Figure 1 and Figure 2 A second connecting rod 121 is rotatably connected between two first connecting rods 12 located on the same rotating shaft. At this time, the thickness of the second connecting rod 121 is large, which reduces the deformation of the second connecting rod 121 and facilitates the transmission of force by the second connecting rod 121. A downwardly extending groove is provided on the lower large mold base 3. The groove is designed to facilitate the installation of the power component. The power component includes two lead screws 13 rotatably connected to the bottom of the groove. The two lead screws 13 are connected through a lifting block 131. Each lead screw 13 is threadedly connected to the lifting block 131. The end of the second connecting rod 121 away from the first connecting rod 12 is rotatably connected to the upper end face of the lower large mold base 3. The bottom of the lower large mold base 3 is provided with a driving component to drive the two lead screws 13 to rotate.

[0035] like Figure 1 and Figure 2Each lifting block 131 is rotatably connected to a third link 132 below each second link 121. The end of the third link 132 away from the lifting block 131 is hinged to the second link 121. The hinge point A between the second link 121 and the first link 12, the hinge point B between the second link 121 and the upper end face of the lower large mold base 3, and the hinge point C between the second link 121 and the third link 132 form the three corner points of a triangle. The purpose of this design is to facilitate the first link 12 to swing and move when the third link 132 transmits force to the second link 121, thereby changing the position of the lower fixed base 1.

[0036] like Figure 1 and Figure 2 When the drive unit drives the two lead screws 13 to rotate, the lead screws 13 drive the lifting block 131 to rise or fall. At this time, the upward force is transmitted to the second link 121 through the third link 132 on the lifting block 131. The second link 121 swings upward around the hinge point B, which drives the third link 132 to move upward and swing, so that the third link 132 gradually tends to the vertical position, thereby driving the lower fixed seat 1 to move upward.

[0037] like Figure 2 and Figure 3 The upper surface of the lower large mold base 3 is provided with two oppositely distributed mounting plates 31. The two mounting plates 31 are located on opposite sides of the two columns 2, and the upper ends of the two mounting plates 31 are connected by a rectangular frame 32. The rectangular frame 32 is horizontally distributed, and the upper ends of the two lead rods 13 pass through the rectangular frame 32. The upper surface of the rectangular frame 32 is provided with an inverted U-shaped connecting plate 33. The two vertical ends of the connecting plate 33 are installed on the opposite frame wall of the rectangular frame 32 by bolts. The horizontal part is rotatably connected to the upper ends of the two lead rods 13. At this time, the setting of the rectangular frame 32 facilitates the entry of the lifting block 131 into the frame.

[0038] like Figure 2 and Figure 3 The rectangular frame 32 has inclined surfaces 34 on both sides facing the two first connecting rods 12. The lower end of the inclined surface 34 extends out of the lower end face of the rectangular frame 32, and the upper end extends out of the side of the rectangular frame 32 facing the first connecting rod 12. The length of the inclined surface 34 is greater than the distance between the two first connecting rods 12 on a connecting block 11. The inclined surface 34 provides space for the swing of the first connecting rod 12, and the rectangular frame 32 facilitates the installation of the connecting plate 33, thereby connecting the upper end of the lead screw 13 and providing stability for the rotation of the lead screw 13.

[0039] like Figure 2 and Figure 3 The wall thickness at the inclined surface 34 of the rectangular frame 32 is greater than the wall thickness at other locations of the rectangular frame 32.

[0040] like Figure 2 and Figure 3The second link 121 has an opening slot 122 at the hinge position with the third link 132, allowing the end of the third link 132 to enter. The third link 132 is rotatably connected in the opening slot 122 via a drive shaft. The opening slot 122 facilitates the installation of the third link 132, ensuring that the force transmitted by the third link 132 to the second link 121 is stably applied to the second link 121.

[0041] like Figure 1 and Figure 3 and Figure 4 The lower mold base 3 has several support feet 35 at its lower end to support it off the ground. The lower ends of the two lead screws 13 extend out of the bottom of the lower mold base 3. The driving component includes pulleys 14 coaxially fixedly mounted on one end of the two lead screws 13 extending out of the bottom of the lower mold base 3. The lower mold base 3 extends out of the column 2. A drive shaft 36 is rotatably connected to the upper end of the lower mold base 3 next to the column 2. The lower end of the drive shaft 36 passes through the bottom of the lower mold base 3 and is coaxially fixedly connected to a pulley 361. The pulley 361 and the two pulleys 14 are connected by a ring belt 362. The lower mold base 3 is equipped with a motor 374 that drives the drive shaft 36 to rotate. When the motor 374 drives the drive shaft 36 to rotate, the two lead screws 13 can be driven to rotate in the same direction through the pulleys 361 and the two pulleys 14.

[0042] like Figure 3 and Figure 4 and Figure 5 In order to adjust the distance between pulley 361 and pulley 14, and thus facilitate the tensioning of the annular belt 362, pulley 2 363 is coaxially fixedly connected to the upper end of drive shaft 36. Drive shaft 37 is rotatably connected to the upper surface of lower large mold base 3. The line connecting drive shaft 37 and drive shaft 36 is parallel to the line connecting the two columns 2. Pulley 4 371 is coaxially fixedly connected to drive shaft 37. Inverted U-shaped cover plate 372 is provided on the upper surface of lower large mold base 3, covering the upper end of drive shaft 37. Pulley 4 371 and pulley 2 363 are at the same height and are connected by annular belt 2 373. Motor 374 is set on the upper end of cover plate 372 and the rotation shaft of motor 374 extends into cover plate 372 and coaxially drives drive shaft 37 to rotate. The diameter of pulley 4 371 is smaller than the diameter of pulley 2 363. The purpose of this design is to facilitate the rotation of pulley 371 and pulley 363 by the motor 374. Since the diameter of pulley 371 is smaller than that of pulley 363, it reduces the rotation of the drive shaft 36.

[0043] like Figure 3 and Figure 4 and Figure 5The upper surface of the lower mold base 3 is provided with guide rails 38 on both sides of the drive shaft 36. The length direction of the guide rails 38 is perpendicular to the length direction of the annular belt 373. A slide plate 381 is slidably connected to the guide rails 38. The drive shaft 36 is rotatably connected to the slide plate 381. Two vertical plates 382 are provided on the slide plate 381, which are distributed along the length direction of the annular belt 373. The upper ends of the two vertical plates 382 are connected by a horizontal plate 383. The horizontal plate 383 and the two vertical plates 382 cover the pulley 363. The upper end of the drive shaft 36 is rotatably connected to the horizontal plate 383. The slide plate 381 has a long strip-shaped adjustment groove 384 distributed along the length of the guide rail 38 at the position corresponding to the guide rail 38. The upper end face of the slide plate 381 is provided with a locking screw that passes through the adjustment groove 384 and is threaded to the upper end face of the guide rail 38. The lower large mold base 3 has a long strip-shaped adjustment groove 385 through which the drive shaft 36 and the pulley 361 pass. The adjustment groove 384 and the adjustment groove 385 are parallel and correspondingly distributed.

[0044] like Figure 3 and Figure 4 and Figure 5 The upper end face of the lower large mold base 3 is provided with an adjusting plate 386 that moves perpendicular to the length direction of the second annular belt 373. A pressing wheel 387 is rotatably connected to the adjusting plate 386 to press the second annular belt 373 onto the fourth belt pulley 371 and the second belt pulley 363. A locking groove 388 distributed along the length direction of the adjusting plate 386 is opened at the end of the adjusting plate 386 away from the pressing wheel 387. One side wall of the locking groove 388 extends out of the end of the adjusting plate 386 away from the pressing wheel 387. A pressing screw is threadedly connected to the upper end face of the lower large mold base 3. The pressing screw passes through the locking groove 388 and enters the upper end face of the lower large mold base 3.

[0045] like Figure 3 and Figure 4 and Figure 5 When it is necessary to adjust the distance between pulley 361 and pulley 14 to tension the annular belt 362, the locking screw is loosened so that the nut of the locking screw is away from the upper surface of the slide plate 381. The lower end of the locking screw is still inside the guide rail 38, which facilitates the slide plate 381 to slide on the guide rail 38. The locking screw slides in the adjustment groove 384 until it moves to the desired position. Then, the locking screw is tightened so that one end of the locking screw is screwed into the guide rail 38, and the nut of the locking screw abuts against the upper surface of the slide plate 381, which fixes the position of the slide plate 381 and thus fixes the position of the drive shaft 36. During this process, the position of the pressure roller 387 can be adjusted. The pressure roller 387 can also tension the annular belt 373. Therefore, adjusting the position of the pressure roller 387 by moving the adjustment plate 386 has many functions.

[0046] like Figure 3 and Figure 4 and Figure 5 When it is necessary to move the adjusting plate 386, loosen the clamping screw so that the nut of the clamping screw is away from the upper surface of the adjusting plate 386. Move the adjusting plate 386 so that the clamping screw moves in the locking groove 388. When the adjusting plate 386 moves to the appropriate position, tighten the clamping screw so that the nut of the clamping screw is pressed against the upper end of the adjusting plate 386, thereby facilitating the fixing of the position of the adjusting plate 386 and also fixing the position of the clamping wheel 387.

[0047] like Figure 3 and Figure 4 and Figure 5 The bottom of the lower mold base 3 is rotatably connected to two clamping rollers 39. One of the clamping rollers 39 is located on one side of the two pulleys 14, which makes it easy to press the annular belt 362 onto the two clamping rollers 39. The other clamping roller 39 is located between the pulley 361 and the pulley 14, which makes it easy to press the annular belt 362 onto the pulley 361 and the pulley 14.

[0048] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A five-link longitudinally arranged drive device for a semiconductor packaging press, characterized in that, It includes two relatively distributed connecting blocks (11) set on the lower end face of the lower fixed seat (1). The line connecting the two connecting blocks (11) is parallel to the plate surface of the column (2). Each connecting block (11) is rotatably connected to a rotating shaft. The axis of the rotating shaft is perpendicular to the plate surface of the column (2). Each rotating shaft has a connecting block (11) extending from both ends, and a first connecting rod (12) is fixedly connected to one end of the extension. The lower large mold base (3) is provided with a power component that drives the first connecting rod (12) to swing and thus drives the lower fixed seat (1) to rise and fall.

2. A five-link longitudinal drive apparatus for a semiconductor packaging press according to claim 1, wherein A second connecting rod (121) is rotatably connected between two first connecting rods (12) located on the same rotating shaft. A downwardly extending groove is provided on the lower large mold base (3). The power component includes two lead screws (13) rotatably connected to the bottom of the groove. The two lead screws (13) are connected by a lifting block (131). Each lead screw (13) is threadedly connected to the lifting block (131). The end of the second connecting rod (121) away from the first connecting rod (12) is rotatably connected to the upper end face of the lower large mold base (3). The bottom of the lower large mold base (3) is provided with a driving component to drive the two lead screws (13) to rotate. The lifting block (131) is rotatably connected to a third link (132) below each of the second links (121). The end of the third link (132) away from the lifting block (131) is hinged to the second link (121). The hinge point A between the second link (121) and the first link (12), the hinge point B between the second link (121) and the upper end face of the lower large mold base (3), and the hinge point C between the second link (121) and the third link (132) form the three corner points of a triangle.

3. The five-link longitudinal drive of claim 2, wherein: The upper surface of the lower large mold base (3) is provided with two oppositely distributed mounting plates (31). The two mounting plates (31) are located on opposite sides of the two columns (2), and the upper ends of the two mounting plates (31) are connected by a rectangular frame (32). The upper ends of the two lead rods (13) pass through the rectangular frame (32). The upper surface of the rectangular frame (32) is provided with an inverted U-shaped connecting plate (33). The two vertical ends of the connecting plate (33) are installed on the opposite frame wall of the rectangular frame (32) by bolts, and the horizontal part is rotatably connected to the upper ends of the two lead rods (13).

4. The five-link longitudinal drive of claim 3, wherein: The rectangular frame (32) has inclined surfaces (34) on both sides facing the two first connecting rods (12). The lower end of the inclined surface (34) extends out of the lower end face of the rectangular frame (32), and the upper end extends out of one side of the rectangular frame (32) facing the first connecting rod (12). The length of the inclined surface (34) is greater than the distance between the two first connecting rods (12) on a connecting block (11).

5. A five-link longitudinal drive apparatus for a semiconductor packaging press according to claim 4, wherein The wall thickness of the rectangular frame (32) at the inclined surface (34) is greater than the wall thickness at other locations of the rectangular frame (32).

6. A five-link longitudinal drive apparatus for a semiconductor packaging press according to claim 2, wherein The second link (121) has an opening slot (122) at the position where it is hinged to the third link (132) for the end of the third link (132) to enter. The third link (132) is rotatably connected in the opening slot (122) via a power shaft.

7. A five-link longitudinal drive apparatus for a semiconductor packaging press according to claim 2, wherein The lower end of the large mold base (3) is provided with several support feet (35) to support the large mold base (3) off the ground. The lower ends of the two lead screws (13) extend out of the bottom of the large mold base (3). The driving component includes a pulley (14) coaxially fixedly disposed at one end of the two lead screws (13) extending out of the bottom of the large mold base (3). The upper end of the large mold base (3) is rotatably connected to a drive shaft (36) on one side next to the column (2). The lower end of the drive shaft (36) passes through the bottom of the large mold base (3) and is coaxially fixedly connected to a pulley (361). The pulley (361) and the two pulleys (14) are connected by an annular belt (362). The large mold base (3) is provided with a motor (374) that drives the drive shaft (36) to rotate.

8. The five-link longitudinal drive of claim 7, wherein: The upper end of the drive shaft (36) is coaxially fixedly connected to a second pulley (363), and the upper surface of the lower large mold base (3) is rotatably connected to a drive shaft (37). The drive shaft (37) is coaxially fixedly connected to a fourth pulley (371). The upper surface of the lower large mold base (3) is provided with an inverted U-shaped cover plate (372) covering the upper end of the drive shaft (37). The fourth pulley (371) and the second pulley (363) are connected by an annular belt (373). The motor (374) is located on the upper end of the cover plate (372), and the rotation shaft of the motor (374) extends into the cover plate (372) and drives the drive shaft (37) to rotate. The diameter of the fourth pulley (371) is smaller than the diameter of the second pulley (363).

9. The five-link longitudinally arranged drive device for a semiconductor packaging press as described in claim 8, characterized in that, The upper surface of the lower mold base (3) is provided with guide rails (38) on both sides of the drive shaft (36). The length direction of the guide rails (38) is perpendicular to the length direction of the annular belt (373). A slide plate (381) is slidably connected to the guide rails (38). The drive shaft (36) is rotatably connected to the slide plate (381). Two vertical plates (382) are provided on the slide plate (381) along the length direction of the annular belt (373). The upper ends of the two vertical plates (382) are connected by a horizontal plate (383). The drive shaft (36) is... The upper end is rotatably connected to the horizontal plate (383). The slide plate (381) has a long strip adjustment groove (384) distributed along the length direction of the guide rail (38) at the position corresponding to the guide rail (38). The upper end face of the slide plate (381) is provided with a locking screw that passes through the adjustment groove (384) and is threaded to the upper end face of the guide rail (38). The lower large mold base (3) has a long strip adjustment groove (385) for the drive shaft (36) and the pulley (361) to pass through. The adjustment groove (384) and the adjustment groove (385) are distributed in parallel. The upper end face of the lower large mold base (3) is provided with an adjustment plate (386) that moves perpendicular to the length direction of the second annular belt (373). The adjustment plate (386) is rotatably connected with a pressing wheel (387) that presses the second annular belt (373) onto the fourth pulley (371) and the second pulley (363). The end of the adjustment plate (386) away from the pressing wheel (387) is provided with a locking groove (388) distributed along the length direction of the adjustment plate (386). The upper end face of the lower large mold base (3) is threaded with a pressing screw, which passes through the locking groove (388) and enters the upper end face of the lower large mold base (3).

10. The five-bar link longitudinal placement drive apparatus for a semiconductor package press according to claim 9, wherein The bottom of the lower mold base (3) is rotatably connected to two pressure rollers (39), one of which is located on one side of the two pulleys (14), and the other is located between the pulley (361) and the pulley (14).

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