Sheet arranging and feeding all-in-one machine

Abstract

The utility model discloses a sheet arranging and feeding all-in-one machine which is characterized by comprising a lead frame box storage rack, a lead frame temporary storage rack, a sheet arranging mechanism, a packaging mold bracket, a feeding mechanism and a material cake frame bracket. According to the utility model, a plurality of components such as the lead frame box storage rack, the lead frame temporary storage rack, the sheet arranging mechanism, the packaging mold bracket, the feeding mechanism and the material cake frame bracket work cooperatively, so that a lead frame is quickly and accurately positioned on a packaging mold, and meanwhile, a material cake frame is automatically filled with a packaging cake material. The sheet arranging device can be completely qualified for the sheet arranging process of the plastic package section, improves the product quality, reduces the labor intensity of workers, and greatly improves the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of chip packaging equipment, in particular to a chip arrangement and feeding integrated machine which can automatically arrange lead frames and place packaging material cakes. Background Art

[0002] In the chip packaging process, the chip on the lead frame needs to be plastic-sealed with packaging materials through a packaging mold. Before packaging, multiple lead frames need to be positioned at different positions on the packaging mold, and packaging cakes need to be loaded on the cake frame. Then, the packaging mold and cake frame are transferred to the packaging equipment for packaging. Therefore, a device that can automatically arrange chips and feed materials on the packaging mold is needed to achieve this function. Summary of the invention

[0003] The utility model aims to provide a sheet arrangement and feeding integrated machine which can automatically position a lead frame onto a packaging mold and simultaneously load packaging cake materials.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The integrated machine for arranging and feeding materials is characterized by comprising a lead frame box storage rack, a lead frame temporary storage rack, an arranging mechanism, a packaging mold bracket, a feeding mechanism and a cake frame bracket;

[0006] A pushing device is provided on one side of the lead frame box storage rack, for pushing the lead frame onto the lead frame temporary storage rack;

[0007] The lead frame temporary storage rack is located on one side of the lead frame box storage rack and is used for temporarily storing the lead frame;

[0008] The packaging mold bracket is used to place the packaging mold;

[0009] The sheet arrangement mechanism is located above the lead frame temporary storage rack and the packaging mold bracket, and includes a lead frame gripper, a lifting device, a lateral moving device and a longitudinal moving device; the lead frame gripper is arranged on the lifting device, the lifting device is driven by the lateral moving device to move lateral, and the lateral moving device is driven by the longitudinal moving device to move longitudinally; it is used to grab the lead frame on the lead frame temporary storage rack and arrange it on the packaging mold on the packaging mold bracket;

[0010] The feeding mechanism comprises a packaging material conveying head, and the packaging material conveying head is arranged on a transverse moving track;

[0011] The cake frame bracket is located below the feeding mechanism and is used for placing the cake frame.

[0012] The lead frame box on the lead frame box is stacked and stored with lead frames, and the lead frames are pushed one by one to the lead frame temporary storage rack by the pushing device. The lead frame gripper of the sheet arrangement mechanism moves to the top of the lead frame temporary storage rack, descends to grab the lead frame, and then rises, and then is driven to move to the specified position of the packaging mold by the lateral moving device and the longitudinal moving device. The lead frame gripper descends to position the lead frame on the packaging mold. At the same time, the packaging material conveying head of the feeding mechanism moves to the top of the material cake frame bracket, and fills the material cakes one by one into the specified position of the material cake frame until the entire material cake frame is filled.

[0013] Its further feature is that: an optical fiber sensor is arranged above the lead frame temporary storage rack; and the lead frame gripper is arranged on a rotating mechanism. The lead frames in the lead frame box may be arranged in a staggered manner, and the lead frames on the packaging mold may also be arranged facing each other. The optical fiber sensor identifies the characteristic holes on the lead frame to determine the front and back of the lead frame. When the lead frame needs to be reversed, the rotating mechanism drives the lead frame gripper to rotate 180° to realize the steering of the lead frame.

[0014] Further: the lead frame box storage rack is driven to rise and fall by a lifting cylinder, and a material box pressing device is also provided at one end of the lead frame box storage rack. The lead frame box storage rack is gradually lowered, and the pushing device pushes the lead frames in the lead frame box to the lead frame temporary storage rack layer by layer, and the lead frame box is pressed by the box pressing device, thereby ensuring that each lead frame in the lead frame box can be pushed smoothly.

[0015] Preferably, the lead frame box storage rack has a longitudinally movable box pushing device at the rear and a longitudinally movable box ejecting device at the head. The box pushing device pushes the full lead frame box to the head of the lead frame box storage rack, and the box ejecting device pushes the empty lead frame box to the rear of the lead frame box storage rack and ejects it.

[0016] The lead frame gripper includes jaws that can be opened and closed in four directions, and two jaws that are arranged opposite to each other are driven by a cylinder to open and close synchronously. The lead frame is grasped by the four jaws, and the stroke of the cylinder is adjusted to adapt to the smooth grasping of lead frames of different specifications and sizes.

[0017] Further: the bottom of the cake frame bracket is arranged on a longitudinal linear slide rail. The packaging material conveying head which moves laterally cooperates with the cake frame bracket which moves longitudinally, and the cake can be loaded into each loading position of the cake frame.

[0018] The utility model uses the lead frame box storage rack, the lead frame temporary storage rack, the film arrangement mechanism, the packaging mold bracket, the feeding mechanism and the material cake frame bracket and other components to work together to quickly and accurately position the lead frame on the packaging mold, and automatically load the packaging cake material on the material cake frame. The utility model is fully capable of the film arrangement process of the plastic sealing section, improves product quality, reduces the labor intensity of workers, and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of the structure of the utility model.

[0020] FIG. 2 is a schematic diagram of the lead frame box storage rack structure.

[0021] FIG. 3 is an exploded schematic diagram of the lead frame box storage rack.

[0022] Figure 4 is a schematic diagram of the film arrangement mechanism.

[0023] FIG5 is a schematic diagram of the lead frame gripper structure.

[0024] FIG6 is a schematic diagram of the lead frame temporary storage rack structure.

[0025] FIG. 7 is a schematic diagram of the packaging mold bracket structure.

[0026] Figure 8 is a schematic diagram of the feeding mechanism and the cake frame bracket structure. DETAILED DESCRIPTION

[0027] like Figure 1 As shown, a film arrangement and feeding integrated machine includes a lead frame box storage rack 1, a lead frame temporary storage rack 2, a film arrangement mechanism 3, a packaging mold bracket 4, a feeding mechanism 5 and a cake frame bracket 6.

[0028] like Figure 1-3 As shown, a pushing device 11 is provided on one side of the lead frame box storage rack 1, which is used to push the lead frame onto the lead frame temporary storage rack 2. The lead frame box storage rack 1 is driven to rise and fall by a lifting cylinder 15, and a material box pressing device 12 is also provided at one end of the lead frame box storage rack 1. A longitudinally movable box pushing device 14 is provided at the tail of the lead frame box storage rack 1, and a longitudinally movable box withdrawing device 13 is provided at the head. The lead frame box storage rack 1 gradually descends, and the pushing device 11 pushes the lead frames in the lead frame box layer by layer to the lead frame temporary storage rack 2, and the lead frame box is pressed by the material box pressing device 12, so as to ensure that each lead frame in the lead frame box can be pushed smoothly. The full lead frame box is pushed to the head of the lead frame box storage rack 1 by the box pushing device 14, and the empty lead frame box is pushed to the tail of the lead frame box storage rack 1 by the box withdrawing device 13.

[0029] like Figure 1 ,4 As shown, the film arrangement mechanism 3 is located above the lead frame temporary storage rack 2 and the packaging mold bracket 4, and includes a lead frame gripper 33, a rotating mechanism 32, a lifting device 31, a lateral moving device 34 and a longitudinal moving device 35. The lead frame gripper 33 is arranged on the rotating mechanism 32, the rotating mechanism 32 is arranged on the lifting device 31, the lifting device 31 is driven by the lateral moving device 34 to move lateral, and the lateral moving device 34 is driven by the longitudinal moving device 35 to move longitudinally; it is used to grab the lead frame on the lead frame temporary storage rack 2 and arrange it on the packaging mold 7 on the packaging mold bracket 4. Figure 5 As shown, the lead frame gripper 33 includes jaws that can be opened and closed in four directions, and two jaws arranged opposite to each other are driven to open and close synchronously by a cylinder. The lead frame is grasped by four jaws, and the stroke of the cylinder is adjusted to adapt to the smooth grasping of lead frames of different specifications and sizes.

[0030] like Figure 1 , 6 As shown, the lead frame temporary storage rack 2 is located on one side of the lead frame box storage rack 1 and is used to temporarily store the lead frame. An optical fiber sensor 21 is arranged above the lead frame temporary storage rack 2. The lead frames in the lead frame box may be arranged in a staggered manner, and the lead frames on the packaging mold 7 may also be arranged facing each other. The optical fiber sensor 21 identifies the characteristic holes on the lead frame to determine the front and back of the lead frame. When the lead frame needs to be reversed, the rotating mechanism 32 drives the lead frame gripper 33 to rotate 180° to achieve the steering of the lead frame.

[0031] like Figure 1 , 7 As shown, the packaging mold bracket 4 is used to place the packaging mold 7 .

[0032] like Figure 1 , 8 As shown, the feeding mechanism 5 is located above the cake frame bracket 6, and includes a packaging material conveying head 51, which is arranged on a transverse moving track 52. The bottom of the cake frame bracket 6 is arranged on a longitudinal linear slide rail 61. The transversely moving packaging material conveying head 51 cooperates with the longitudinally moving cake frame bracket 6 to load cakes into each loading position of the cake frame.

[0033] When the utility model is working, the lead frame box pushes the full lead frame box to the head of the lead frame box storage rack 1 through the box pushing device 14. The lead frame is stacked and stored in the lead frame box on the lead frame box, and the lead frame is pushed to the lead frame temporary storage rack 2 through the pushing device 11. The lead frame gripper 33 of the sheet arrangement mechanism 3 moves to the top of the lead frame temporary storage rack 2, descends to grab the lead frame, and then rises. The optical fiber sensor 21 on the lead frame temporary storage rack 2 identifies the front and back of the lead frame according to the characteristic holes on the lead frame, and chooses whether to rotate and turn according to the position requirements of the lead frame on the packaging mold 7. The lead frame gripper 33 is then driven to move to the specified position of the packaging mold 7 by the lateral moving device 34 and the longitudinal moving device 35, and the lifting device 31 drives the lead frame gripper 33 to descend and open the jaws to position the lead frame on the packaging mold 7. At the same time, the packaging material conveying head 51 that moves laterally cooperates with the longitudinally moving material cake frame bracket 6 to load the material cakes one by one into the designated positions of the material cake frame until the entire material cake frame is filled.

Claims

1. All-in-one machine for film arrangement and feeding, Features: It includes a lead frame box storage rack, a lead frame temporary storage rack, a sheet arrangement mechanism, a packaging mold bracket, a feeding mechanism and a cake frame bracket; A pushing device is provided on one side of the lead frame box storage rack, for pushing the lead frame onto the lead frame temporary storage rack; The lead frame temporary storage rack is located on one side of the lead frame box storage rack and is used for temporarily storing the lead frame; The packaging mold bracket is used to place the packaging mold; The sheet discharging mechanism is located above the lead frame temporary storage rack and the packaging mold bracket, and includes a lead frame gripper, a lifting device, a lateral moving device and a longitudinal moving device; the lead frame gripper is arranged on the lifting device, the lifting device is driven by the lateral moving device to move lateral, and the lateral moving device is driven by the longitudinal moving device to move longitudinally; Used to grab the lead frame on the lead frame temporary storage rack and arrange it on the packaging mold on the packaging mold bracket; The feeding mechanism comprises a packaging material conveying head, and the packaging material conveying head is arranged on a transverse moving track; The cake frame bracket is located below the feeding mechanism and is used for placing the cake frame.

2. The film arrangement and feeding integrated machine according to claim 1, Features: An optical fiber sensor is arranged above the lead frame temporary storage rack; and the lead frame gripper is arranged on a rotating mechanism.

3. The integrated film arrangement and feeding machine according to claim 1 or 2, Features: The lead frame box storage rack is driven to rise and fall by a lifting cylinder, and a material box pressing device is also arranged at one end of the lead frame box storage rack.

4. The film arrangement and feeding integrated machine as claimed in claim 3, Features: The tail of the lead frame box storage rack is provided with a box pushing device which can move longitudinally, and the head is provided with a box withdrawing device which can move longitudinally.

5. The integrated film arrangement and feeding machine according to claim 1 or 2, Features: The lead frame gripper comprises clamping jaws that can be extended and opened in four directions, and two clamping jaws arranged opposite to each other are driven by a cylinder to open and close synchronously.

6. The integrated film arrangement and feeding machine according to claim 1 or 2, Features: The bottom of the cake frame bracket is arranged on a longitudinal linear slide rail.

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