Lead frame transfer and stacking device

Abstract

A lead frame transfer and stacking device, relating to the field of semiconductor production, comprises: a support frame with support rings at both ends along its length; a flipping mechanism comprising two gear rings rotatably mounted on the inner sides of the support rings; two symmetrically arranged supporting plates, with their lengths parallel to the length of the support frame, disposed between the gear rings for placing the transfer frame; a plurality of lead frames arranged in a rectangular array on the transfer frame; two symmetrically arranged retaining bars, reciprocating along their width, disposed on the retaining plates; the retaining bars' lengths being parallel to the axes of the gear rings for limiting the lead frames; and a supporting mechanism comprising two support plates, disposed on either side of the support frame's length and movable along its width and vertical direction; a plurality of spaced material frames disposed on the top surface of the support plates along its length; when in use, the upper ends of the material frames abut against the transfer frame for collecting the lead frames. This device can automatically stack lead frames in the material frames, improving efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor production, and in particular to a lead frame transfer and stacking device. Background Art

[0002] After the chip is formed on the lead frame, it needs to be taken out of the transfer rack in time and stacked in the material frame. In the prior art, the transfer rack is usually directly flipped over to allow the lead frame to fall under the action of gravity. However, in actual operation, since the positioning rod of the transfer rack is inserted into the lead frame, the lead frame will deflect due to uneven gravity distribution when the lead frame falls, so that the lead frame cannot fall normally and is stuck in the transfer rack. The lead frame needs to be manually moved, and at this time the lead frame is still in a high temperature state and can only be moved with a lever, which makes the operation efficiency relatively low. Moreover, during the process of the lead frame falling, due to the effect of air resistance, the lead frame will be arranged in a disorderly manner. Before subsequent processing, the lead frame needs to be manually arranged in the material frame, which affects production efficiency. Moreover, after the packaging is completed, the temperature of the lead frame is very high. It takes a long time to wait for its temperature to drop to room temperature before it can be stacked and arranged, further reducing production efficiency. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the related prior art, the present application provides a lead frame transfer and stacking device, which can automatically stack the lead frames in a material frame, thereby improving efficiency and having strong practicality.

[0004] In order to achieve the above object, the present invention adopts the following technologies:

[0005] A lead frame transfer and stacking device comprises a support frame, a turning mechanism, a bearing mechanism and a transfer frame.

[0006] Support rings are provided at both ends of the support frame in the length direction; the flipping mechanism includes two gear rings that are rotatably installed on the inner sides of the support rings, and two symmetrically arranged supporting plates with their length directions parallel to the length direction of the support frame are provided between the gear rings, which are used to place the transfer frame. A plurality of lead frames are provided in a rectangular array on the transfer frame, and two symmetrically arranged baffles are provided on the supporting plate, which are reciprocatingly movable along the width direction. The length direction of the baffles is parallel to the axis of the gear rings, which are used to limit the lead frame during the flipping of the supporting plate; the supporting mechanism includes two support plates that are respectively provided on both sides of the length direction of the support frame and are movable along the width direction and vertical direction. A plurality of spaced material frames are provided on the top surface of the support plate along its length direction. When in use, the upper end of the material frame abuts the transfer frame for collecting the lead frame.

[0007] Furthermore, limit blocks are provided on both sides of the load-bearing plate in the length direction. The limit blocks are L-shaped, and the short ends are located on the same side as the transfer frame and abut against the top surface of the transfer frame, and the long ends abut against the side of the transfer frame. A slot is provided on the side of the short end of the limit block facing the transfer frame, and there is a distance between the side wall of the slot and the long end of the limit block. When used, the block rod is engaged in the slot.

[0008] Furthermore, notches are provided on both sides of the load-bearing plate in the length direction, the long end is located in the notch and is sleeved on the protruding rod, the protruding rod is installed on the load-bearing plate, and a retaining ring is provided at the end away from the load-bearing plate, and a first spring is sleeved on the protruding rod, and the two ends of the first spring respectively abut against the long end and the retaining ring of the limit block, and are always in a compressed state.

[0009] Furthermore, two through slots arranged along the width direction are provided at both ends of the supporting plate in the length direction, and connecting blocks are provided at both ends of the blocking rod. The connecting blocks pass through the through slots and slide in them. The end of the connecting block is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the moving block. The moving block is connected to the moving end of the vertical lifting mechanism, and the vertical lifting mechanism is installed on the supporting plate.

[0010] Furthermore, blocks are provided at both ends of the load-bearing plate in the length direction for limiting the positions of the two ends of the transfer frame.

[0011] Furthermore, a plurality of rectangular limiting holes are provided in a rectangular array on the surface of the transfer frame for accommodating the lead frame. A protrusion is provided in the limiting hole, which is rectangular and has positioning rods at all four corners. When used, the positioning rod is passed through the lead frame, and the other end of the positioning rod is connected to the base plate, which is arranged to move along the thickness of the transfer frame.

[0012] Furthermore, bottom rods are provided at both ends of the bottom plate, the bottom rods are passed through the bracket, the bracket is installed on the transfer frame, and a second spring is sleeved on the bottom rod. The two ends of the second spring are respectively abutted against the bracket and the bottom plate and are always in a compressed state.

[0013] Furthermore, a push plate is provided at the end of the bottom rod, the push plate is L-shaped, and its vertical section is provided with a through groove, two side frames are provided between the supporting plates, both ends of the side frames are mounted on the guide rod and connected to the moving end of the first bidirectional linear mechanism, the first bidirectional linear mechanism and the guide rod are both installed on the connecting frame, the connecting frame is installed on the supporting plate, a support rod with an axis perpendicular to the surface of the supporting plate is installed on the side frame, a push block is mounted on the support rod, and the push block is V-shaped at one end facing the push plate. When in use, the push block is passed through the through groove, and the inclined surface contacts the end edge of the through groove.

[0014] Furthermore, a convex shaft is provided at the other end of the push block, a rotating ring is sleeved on the convex shaft, and a counterweight ball is provided on the side of the rotating ring.

[0015] Furthermore, a horizontal plate is provided above the support plate, one end of the horizontal plate is sleeved on the slide rod and connected to the movable end of the second bidirectional linear mechanism. The slide rod and the second bidirectional linear mechanism are both installed on the support ring. A plurality of support plates are provided on the inner side of the horizontal plate along its length direction. Both ends of the material frame are provided with long grooves that pass through the upper end, and a plurality of grooves are provided on the side of the barrier rod along its length direction. When in use, the support plate passes through the long groove and the groove.

[0016] Furthermore, the gear ring is engaged with the driving gear, the driving gear is mounted on the transmission shaft, the transmission shaft is rotatably mounted on the support ring, and one end is connected to the output end of the power equipment, and the power equipment is mounted on the support ring.

[0017] The beneficial effects of the present invention are as follows: the transfer rack is placed on the carrier plate to flip it over, and the positioning rod is set to be movable, and the lead frame is supported by the support plate to ensure that the lead frame can be smoothly transferred to the material frame, thereby realizing automatic stacking of the lead frame, and no manual operation is required throughout the process, while improving efficiency and reducing the labor intensity of workers; during the rotation of the carrier plate, the lead frame is limited by the blocking rod to prevent the lead frame from slipping prematurely during the flipping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0019] Figure 1 It is a schematic three-dimensional diagram of the overall structure of an embodiment of the present application.

[0020] Figure 2 This is a front view of an embodiment of the present application.

[0021] Figure 3 This is a side view of an embodiment of the present application.

[0022] Figure 4 This is a three-dimensional schematic diagram of the flip mechanism of an embodiment of the present application.

[0023] Figure 5 This is a three-dimensional schematic diagram of one of the carrier plates according to an embodiment of the present application.

[0024] Figure 6 FIG. 1 is a perspective schematic diagram of another carrier plate according to an embodiment of the present application.

[0025] Figure 7 This is a three-dimensional schematic diagram of a transfer rack according to an embodiment of the present application being arranged on one of the carrier plates.

[0026] Figure 8 This is a three-dimensional schematic diagram of the transfer rack located below the carrying plate according to an embodiment of the present application.

[0027] Figure 9 This is a three-dimensional schematic diagram of a transfer rack according to an embodiment of the present application.

[0028] Figure 10 This is a three-dimensional schematic diagram of the transfer rack from another angle according to an embodiment of the present application.

[0029] Figure 11 This is a three-dimensional schematic diagram of the supporting mechanism of an embodiment of the present application.

[0030] Explanation of reference numerals: 100 - support frame, 200 - flip mechanism, 300 - carrying mechanism, 400 - transfer frame, 101 - support ring, 201 - gear ring, 202 - carrying plate, 203 - stop rod, 204 - limit block, 205 - card slot, 206 - notch, 207 - protruding rod, 208 - retaining ring, 209 - first spring, 210 - through slot, 211 - connecting block, 212 - connecting rod, 213 - moving block, 214 - card block, 215 - driving gear, 216 - transmission shaft, 217 - side Frame, 218—guide rod, 219—connecting frame, 220—support rod, 221—push block, 222—convex shaft, 223—rotating ring, 224—weight ball, 225—groove, 301—support plate, 302—material frame, 303—cross plate, 304—slide rod, 305—support plate, 306—long groove, 401—limiting hole, 402—protrusion, 403—positioning rod, 404—bottom plate, 405—bottom rod, 406—bracket, 407—second spring, 408—push plate, 409—through groove. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] like Figures 1 to 11 As shown, an embodiment of the present application provides a lead frame transfer and stacking device, including: a support frame 100, a turning mechanism 200, a carrying mechanism 300, and a transfer frame 400.

[0033] The support frame 100 is provided with support rings 101 at both ends in the length direction; the flip mechanism 200 includes two gear rings 201 rotatably mounted on the inner sides of the support rings 101, and two symmetrically arranged supporting plates 202 with a length direction parallel to the length direction of the support frame 100 are provided between the gear rings 201 for placing the transfer frame 400. The transfer frame 400 is provided with a plurality of lead frames in a rectangular array, and the supporting plate 202 is provided with two symmetrically arranged blocking rods 203 that are reciprocatingly movable along the width direction thereof, and the blocking rods 203 are parallel to the axis of the gear rings 201 in the length direction, and the blocking rods 203 are aligned with the rotating shaft. The top surface contact of the transfer rack 400 is used to limit the lead frame during the flipping of the carrier plate 202 to prevent the lead frame from slipping during the flipping process; the carrier mechanism 300 includes two support plates 301 respectively arranged on both sides of the length direction of the support frame 100 and movable along its width direction and vertical direction. The top surface of the support plate 301 is provided with a plurality of spaced material frames 302 along its length direction. After the carrier plate 202 is flipped 180 degrees, the blocking rod 203 moves to both sides of the length direction of the carrier plate 202, and the upper end of the material frame 302 abuts against the transfer rack 400 for collecting the lead frame.

[0034] Specifically, if Figures 1-6 As shown, both sides of the carrier plate 202 in the length direction are provided with limit blocks 204, the limit blocks 204 are L-shaped, and the short ends are located on the same side as the transfer rack 400 and abut against the top surface of the transfer rack 400, and the side surfaces of the long ends abut against the side surfaces of the transfer rack 400. The short ends of the limit blocks 204 are provided with a slot 205 on the side facing the transfer rack 400. When the transfer rack 400 is placed on the carrier plate 202, the two baffles 203 are driven away from each other so that the baffles 203 are located in the slot 205. At this time, the baffles 203 and the limit blocks 204 are moved synchronously so that the transfer rack 400 can be smoothly placed on the carrier plate 202. Then the baffles 203 and the limit blocks 204 are moved close to each other so that the inner sides of the long ends of the limit blocks 204 abut against the two sides of the transfer rack 400. side, and at this time the short end of the limit block 204 also contacts the top surface of the transfer rack 400, thereby limiting the transfer rack 400, and then the two blocking rods 203 continue to approach each other until they move to the area where the transfer rack 400 carries the lead frame, thereby preventing the lead frame from sliding off prematurely during the flipping of the carrier plate 202, and there is a gap between the blocking rod 203 and the top surface of the transfer rack 400, so that the movement of the blocking rod 203 is smoother, and the thickness of the gap is less than the thickness of the lead frame, thereby also preventing the lead frame from sliding off; at the same time, there is a distance between the side wall of the card slot 205 and the long end of the limit block 204, so that after the carrier plate 202 flips 180 degrees, when the two blocking rods 203 move toward each other, it can also ensure the limiting of the transfer rack 400.

[0035] Specifically, if Figure 4-Figure 6As shown, notches 206 are provided on both sides of the load plate 202 in the length direction, and the long ends of the limit blocks 204 are located in the notches 206 and are sleeved on the protruding rods 207. The protruding rods 207 are installed on the load plate 202, and a retaining ring 208 is provided at the end away from the load plate 202. A first spring 209 is sleeved on the protruding rod 207, and the two ends of the first spring 209 respectively abut against the long ends of the limit blocks 204 and the retaining ring 208, and are always in a compressed state. Under the action of the first spring 209, the limit blocks 204 always have a tendency to move toward the center of the load plate 202. When the two stop rods 203 move away from each other, the stop rods 203 will drive the limit blocks 204 to move synchronously, and the first spring 209 is further compressed, thereby facilitating the transfer rack 400 to be placed on the load plate 202. When the two stop rods 203 move toward each other, the limit blocks 204 will also move and reset under the action of the first spring 209, thereby realizing the limitation of both sides of the transfer rack 400.

[0036] More specifically, Figure 4 As shown, blocks 214 are provided at both ends of the carrying plate 202 in the length direction, for limiting the positions of the two ends of the transfer frame 400 .

[0037] Specifically, if Figure 4-Figure 6 As shown, two ends of the supporting plate 202 in the length direction are provided with two through slots 210 arranged along its width direction, and two ends of the blocking rod 203 are provided with connecting blocks 211. The connecting blocks 211 pass through the through slots 210 and slide in them. The end of the connecting block 211 is rotatably connected to one end of the connecting rod 212, and the other end of the connecting rod 212 is rotatably connected to the moving block 213. The moving block 213 is connected to the moving end of the vertical lifting mechanism. The vertical lifting mechanism is installed on the supporting plate 202. When it is necessary to drive the two blocking rods 203 to move toward each other or away from each other, the moving block 213 is driven to move along the thickness direction of the supporting plate 202 through the vertical lifting mechanism. Under the action of the connecting rod 212, the two blocking rods 203 are driven to move toward each other or away from each other synchronously.

[0038] Specifically, if Figure 7-Figure 8 As shown, the surface of the transfer frame 400 is provided with a plurality of rectangular limiting holes 401 in a rectangular array for accommodating the lead frame, and a protrusion 402 is provided in the limiting hole 401. The protrusion 402 is rectangular to support the lead frame, and positioning rods 403 are passed through the four corners of the protrusion. When the lead frame is located in the limiting hole 401, the positioning rod 403 is passed through the lead frame to position the lead frame, and the other end of the positioning rod 403 is connected to the bottom plate 404, and the bottom plate 404 is arranged to move along the thickness of the transfer frame 400. When the lead frame needs to be removed from the limiting hole 401, the bottom plate 404 is moved along the thickness of the transfer frame 400 and gradually away from the transfer frame 400 until the end of the positioning rod 403 is located in the protrusion 402, thereby releasing the positioning of the lead frame.

[0039] Specifically, if Figure 7-10 As shown, bottom rods 405 are provided at both ends of the bottom plate 404, and the bottom rod 405 is passed through the bracket 406, and the bracket 406 is installed on the transfer frame 400. A second spring 407 is sleeved on the bottom rod 405, and the two ends of the second spring 407 are respectively abutted against the bracket 406 and the bottom plate 404, and are always in a compressed state. Under the action of the second spring 407, the bottom plate 404 always has a tendency to move toward the transfer frame 400, thereby ensuring that the positioning rod can always be passed through the lead frame to ensure the positioning of the lead frame; and when the lead frame needs to be removed from the transfer frame 400, it is only necessary to place the transfer frame 400 on the carrier plate 202 and flip it 180 degrees, and then apply a force away from the carrier plate 202 to the bottom plate 404 to move the positioning rod 403 out of the lead frame, and the second spring 407 is further compressed. At this time, the lead frame can move downward smoothly and transfer.

[0040] Specifically, if Figure 2-Figure 3 、 Figure 7-10 As shown, a push plate 408 is provided at the end of the bottom rod 405, and the push plate 408 is L-shaped, and a through slot 409 is provided in its vertical section. Two side frames 217 are provided between the supporting plates 202, and both ends of the side frames 217 are sleeved on the guide rod 218 and connected to the moving end of the first bidirectional linear mechanism. The first bidirectional linear mechanism and the guide rod 218 are both installed on the connecting frame 219, and the connecting frame 219 is installed on the supporting plate 202. A support rod 220 with an axis perpendicular to the surface of the supporting plate 202 is installed on the side frame 217, and a push block 221 is sleeved on the support rod 220. The push block 221 is V-shaped at one end facing the push plate 408. When the bottom plate 404 needs to be moved in a direction away from the transfer frame 400, the two side frames 217 are driven by the first bidirectional linear mechanism. When the two ends of the support plate 202 are moved away from each other, the push block 221 will penetrate into the through groove 409, and the inclined surface of the push block 221 will contact the edge of the end of the through groove 409, thereby forcing the push plate 408 to move in the direction away from the transfer frame 400, thereby driving the positioning rod 403 to move into the protrusion 402. At this time, the second spring 407 is also further compressed. When the side frame 217 is reset, the positioning rod 403 will also be reset under the action of the second spring 407. Since the push block 221 is mounted on the support rod 220, after the supporting plate 202 is flipped 180 degrees, the push block 221 will also move from one end of the support rod 220 to the other end under the action of its own gravity, and then it can move the positioning rod 403 of the transfer frame 400 on the other supporting plate 202.

[0041] Specifically, if Figure 7-10As shown, in order to make the push block 221 move more smoothly from one end of the support rod 220 to the other end, a convex shaft 222 is provided at the other end of the push block 221, and a rotating ring 223 is provided on the convex shaft 222. A counterweight ball 224 is provided on the side of the rotating ring 223. The counterweight ball 224 is always facing downward under the action of its own gravity. During the flipping process of the supporting plate 202, the counterweight ball 224 always provides a downward force on the push block 221, thereby ensuring that after the supporting plate 202 flips 180 degrees, the push block 221 can always be located at the lower end of the support rod 220, thereby ensuring that the positioning rods 403 on the two transfer racks 400 can be moved.

[0042] Specifically, if Figure 1-Figure 3 、 Figure 11 As shown, a horizontal plate 303 is provided above the support plate 301, one end of the horizontal plate 303 is sleeved on the slide bar 304 and connected to the moving end of the second bidirectional linear mechanism, the slide bar 304 and the second bidirectional linear mechanism are both installed on the support ring 101, and a plurality of supporting plates 305 are provided on the inner side of the horizontal plate 303 along its length direction, and a long groove 306 is provided at both ends of the material frame 302 through the upper end, and a plurality of grooves 225 are provided on the side of the blocking rod 203 along its length direction. After the transfer rack 400 is placed on the carrier plate 202 and turned 180 degrees, the two horizontal plates 303 are driven close to each other by the second bidirectional linear mechanism, and the supporting plates 305 pass through the grooves 225, and at least a part of the supporting plates 305 is located in the limit The lead frame is supported in the positioning hole 401, and then the two blocking rods 203 of the lower carrier plate 202 are moved away from each other until they are located in the area outside the limiting hole 401. At the same time, the positioning rod 403 is also pulled out from the lead frame, and then the support plate 301 is moved upward so that the upper end of the material frame 302 abuts against the transfer rack 400, and the accommodating area of ​​the material frame 302 is aligned with the limiting hole 401. At this time, the support plate 305 is located in the long groove 306, and then the support plate 305 is moved in the direction away from the material frame 302. When the support plate 305 is located in the area outside the material frame 302, the lead frame can fall smoothly into the material frame 302, and then the support plate 301 is moved downward and away from each other.

[0043] Specifically, if Figure 1-Figure 3 As shown, the ring gear 201 is engaged with the driving gear 215, and the driving gear 215 is installed on the transmission shaft 216. The transmission shaft 216 is rotatably installed on the support ring 101, and one end is connected to the output end of the power equipment. The power equipment is installed on the support ring 101. After the transfer rack 400 is placed on the carrier plate 202 and the position is limited, the power equipment drives the transmission shaft 216 to rotate. Under the engagement of the driving gear 215 and the ring gear 201, the carrier plate 202 is driven to rotate 180 degrees, which is convenient for the subsequent lead frame transfer and stacking operation.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A lead frame transfer and stacking device, characterized in that: include: The support frame (100) is provided with support rings (101) at both ends in the longitudinal direction; A flip mechanism (200) comprising two gear rings (201) rotatably mounted on the inner side of the support ring (101), two symmetrically arranged supporting plates (202) with a length direction parallel to the length direction of the support frame (100) are provided between the gear rings (201) for placing a transfer frame (400), a plurality of lead frames are provided on the transfer frame (400) in a rectangular array, two symmetrically arranged blocking rods (203) are provided on the supporting plate (202) and are reciprocatingly movable along the width direction thereof, the blocking rods (203) having a length direction parallel to the axis of the gear rings (201) and being used to limit the lead frames during the flipping process of the supporting plate (202); The supporting mechanism (300) comprises two supporting plates (301) respectively arranged on both sides of the support frame (100) in the longitudinal direction and movable along the width direction and vertical direction thereof; a plurality of material frames (302) arranged at intervals are provided on the top surface of the supporting plate (301) along the longitudinal direction thereof; when in use, the upper ends of the material frames (302) abut against the transfer frame (400) for collecting the lead frames.

2. The lead frame transfer and stacking device according to claim 1, wherein: Limit blocks (204) are provided on both sides of the carrier plate (202) in the longitudinal direction. The limit blocks (204) are L-shaped, and the short end is located on the same side as the transfer frame (400) and abuts against the top surface of the transfer frame (400), and the side surface of the long end abuts against the side surface of the transfer frame (400). A slot (205) is provided on the side of the short end of the limit block (204) facing the transfer frame (400), and there is a distance between the side wall of the slot (205) and the long end of the limit block (204). When in use, the blocking rod (203) is engaged in the slot (205); Notches (206) are provided on both sides of the bearing plate (202) in the longitudinal direction. The long end is located in the notch (206) and is sleeved on the protruding rod (207). The protruding rod (207) is installed on the bearing plate (202), and a retaining ring (208) is provided at one end away from the bearing plate (202). A first spring (209) is sleeved on the protruding rod (207). The two ends of the first spring (209) respectively abut against the long end of the limit block (204) and the retaining ring (208), and are always in a compressed state.

3. The lead frame transfer and stacking device according to claim 1, wherein: Two through slots (210) arranged along the width direction are provided at both ends of the bearing plate (202) in the length direction, and the two ends of the blocking rod (203) are provided with connecting blocks (211). The connecting blocks (211) pass through the through slots (210) and are slidably fitted therein. The end of the connecting block (211) is rotatably connected to one end of the connecting rod (212), and the other end of the connecting rod (212) is rotatably connected to the moving block (213). The moving block (213) is connected to the moving end of the vertical lifting mechanism, and the vertical lifting mechanism is installed on the bearing plate (202).

4. The lead frame transfer and stacking device according to claim 1, wherein: Both ends of the carrier plate (202) in the length direction are provided with clamping blocks (214) for limiting the positions of the two ends of the transfer frame (400).

5. The lead frame transfer and stacking device according to claim 1, wherein: The transfer rack (400) has a plurality of rectangular limiting holes (401) arranged in a rectangular array on its surface for accommodating a lead frame. A protrusion (402) is provided in the limiting hole (401). The protrusion (402) is rectangular, and positioning rods (403) are provided at the four corners. When in use, the positioning rod (403) is passed through the lead frame, and the other end of the positioning rod (403) is connected to a base plate (404). The base plate (404) is arranged to move along the thickness of the transfer rack (400).

6. The lead frame transfer and stacking device according to claim 5, wherein: Both ends of the bottom plate (404) are provided with bottom rods (405), the bottom rods (405) are inserted into the brackets (406), the brackets (406) are mounted on the transfer rack (400), and a second spring (407) is sleeved on the bottom rods (405), the two ends of the second spring (407) respectively abut against the brackets (406) and the bottom plate (404), and are always in a compressed state.

7. The lead frame transfer and stacking device according to claim 6, wherein: The end of the bottom rod (405) is provided with a push plate (408), the push plate (408) is L-shaped, and its vertical section is provided with a through groove (409), two side frames (217) are provided between the bearing plates (202), both ends of the side frames (217) are sleeved on the guide rod (218), and are connected to the moving end of the first bidirectional linear mechanism, the first bidirectional linear mechanism and the guide rod (218) are both installed on the connecting frame (219), and the connecting frame ( 219) is installed on the bearing plate (202), and a support rod (220) with an axis perpendicular to the surface of the bearing plate (202) is installed on the side frame (217), and a push block (221) is sleeved on the support rod (220), and the push block (221) is V-shaped at one end facing the push plate (408). When used, the push block (221) is inserted into the through groove (409), and the inclined surface contacts the end edge of the through groove (409).

8. The lead frame transfer and stacking device according to claim 7, wherein: The other end of the push block (221) is provided with a convex shaft (222), a rotating ring (223) is sleeved on the convex shaft (222), and a counterweight ball (224) is provided on the side of the rotating ring (223).

9. The lead frame transfer and stacking device according to claim 1, wherein: A transverse plate (303) is provided above the support plate (301), one end of the transverse plate (303) is sleeved on the slide bar (304) and connected to the movable end of the second bidirectional linear mechanism, the slide bar (304) and the second bidirectional linear mechanism are both mounted on the support ring (101), a plurality of support plates (305) are provided on the inner side of the transverse plate (303) along its length direction, both ends of the material frame (302) are provided with long grooves (306) penetrating the upper end, and a plurality of grooves (225) are provided on the side of the blocking rod (203) along its length direction. When in use, the support plate (305) passes through the long groove (306) and the groove (225).

10. The lead frame transfer and stacking device according to claim 1, wherein: The gear ring (201) is meshed with a driving gear (215), the driving gear (215) is mounted on a transmission shaft (216), the transmission shaft (216) is rotatably mounted on the support ring (101), and one end is connected to an output end of a power device, and the power device is mounted on the support ring (101).

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