A graphite boat feeding mechanism

Abstract

The present invention relates to a graphite boat material box, which includes a material box and a handle. The material box includes an upper plate, a left side plate, a right side plate, a partition, a lower plate and a stopper. The left ends of several partitions are evenly installed on the inner side of the left side plate and several partitions are located between the upper plate and the lower plate. A right side plate is installed above the right end of each partition and the lower plate. A gap is left between the upper end of the right end of the upper plate and the lower end of each partition and the upper end of the adjacent lower right side plate to form an operation port. A stopper is installed on the front side of the lower end of the upper plate and each partition and close to the inner side of the left side plate; the handle is installed on the upper plate; a horizontal rectangular groove is opened on the inner side wall of the left side plate below each stopper, and an L-shaped groove is opened on the inner upper end of each right side plate. The rectangular grooves on each layer of the material box and the L-shaped grooves form a slideway for the graphite boat. The advantages are ingenious design, easy use, effective prevention of the problem of wrong feeding direction of the graphite boat, and safety and reliability.

Description

Technical Field

[0001] The invention relates to the technical field of diode production, and in particular to a graphite boat feeding mechanism. Background Art

[0002] In the past, during the diode production process, a crystal bonder was used to transfer the crystals on the blue film to the sheet (solder sheet) on the graphite boat (also called graphite plate, material placement table, etc.) through the suction nozzle at the upper end of the swing arm. However, the graphite boat usually needs to be loaded one by one, which is troublesome. In addition, in order to quickly position the graphite boat when screening the sheet in the previous process, a locating pin is installed at one end of the graphite boat near the side to facilitate positioning and orientation and operation. Due to the design of the locating pin, when the crystal bonder is loading, the end of the graphite boat with the locating pin must be on the outside to avoid the suction nozzle at the upper end of the swing arm. Once the direction is wrong, the suction nozzle at the upper end of the swing arm will directly hit the locating pin, causing mechanical damage, resulting in losses and reduced production efficiency. Now we need to solve the problem of incorrect direction when loading.

[0003] The patent of the crystal bonding machine is as follows: Application (patent) No.: CN201811110448.3, a continuous crystal taking and bonding mechanism, comprising a tray for placing wafer blue film and a loading table for placing material sheets, a swing arm for taking and placing the grains on the wafer blue film onto the material sheets is arranged between the tray and the loading table, and also comprises a blue film loading and unloading device, the blue film loading and unloading device comprises a blue film bin and a picking claw, the blue film bin is filled with wafer blue film to be taken out, the picking claw moves between the blue film bin and the tray and can take and place the wafer blue film, and the whole crystal taking and bonding process can be carried out continuously by arranging the picking claw that can automatically switch the wafer blue film, and the operator only needs to be responsible for replenishing the blue film bin, and the switching of the wafer blue film is performed by the picking claw, which reduces the labor intensity of the operator and improves the efficiency of crystal taking and bonding.

[0004] The relevant document of graphite boat is application (patent) number: CN201320270369.5, which discloses a graphite disk for diode production, including a main body, the upper surface of the main body has a through hole matching the size of the lead, and positioning holes are respectively provided at the four corners of the main body. The graphite disk of this patent has a simple structure and is convenient and quick to use. The leads are introduced into the evenly distributed through holes of the graphite disk, so that the leads can be transported in packages and delivered to the next process. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a graphite boat feeding mechanism, which is cleverly designed, easy to use, and can effectively prevent the problem of wrong direction of the graphite boat.

[0006] The technical solution of the present invention:

[0007] A graphite boat loading mechanism comprises a material box and a handle, wherein the material box is divided into several layers, a partition is installed between adjacent material boxes, a handle is installed above the material box of the uppermost layer, the material box comprises an upper plate, a left side plate, a right side plate, a partition, a lower plate and a stopper, the left side of the upper plate is connected to the upper end of the left side plate, the lower end of the left side plate is connected to the left end of the lower plate, the left ends of several partitions are evenly installed on the inner side of the left side plate and several partitions are located between the upper plate and the lower plate, each partition and the right end of the lower plate are installed above the right side plate, the lower right end of the upper plate and the lower right end of each partition are respectively connected to the adjacent lower right end A gap is left between the upper ends of the right side plates to form an operation port, and a stopper is installed on the front side of the upper plate and the lower end of each partition and close to the inner side of the left side plate; the handle is installed on the upper plate; a horizontal rectangular groove is opened below each stopper and on the inner wall of the left side plate, and an L-shaped groove is also opened on the inner upper end of each right side plate, and the rectangular grooves and the L-shaped grooves on each layer of the material box form a slideway for the graphite boat; the upper plate and the rear side of the lower end of each partition are connected up and down by a connecting rod, and the connecting rod is close to the inner side of the left side plate.

[0008] A positioning pin is designed and installed at an upper end of the graphite boat and close to one side.

[0009] The right side plate is provided with a plurality of waist-shaped through holes.

[0010] The left side plate is also provided with a plurality of waist-shaped through holes.

[0011] The invention has the advantages of clever design, easy use, effective prevention of the problem of wrong feeding direction of the graphite boat, and safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the front side of the graphite boat material box of the present invention.

[0013] Figure 2 It is a schematic diagram of the rear side of the graphite boat material box of the present invention.

[0014] Figure 3 It is a schematic diagram of a feeding mechanism for a graphite boat according to the present invention.

[0015] Figure 4 It is a side view of the lifting mechanism of the feeding mechanism of the present invention.

[0016] Figure 5 It is a top view schematic diagram of the feeding mechanism of the present invention. DETAILED DESCRIPTION

[0017] See attached Figure 1-2A graphite boat loading mechanism includes a material box and a handle 1. The material box is divided into several layers, and a partition 4 is installed between adjacent material boxes. A handle 1 is installed above the material box on the uppermost layer. The material box includes an upper plate 2, a left side plate 9, a right side plate 3, a partition 4, a lower plate 5 and a stopper 6. The left side of the upper plate 2 is connected to the upper end of the left side plate 9, and the lower end of the left side plate 9 is connected to the left end of the lower plate 5. The left ends of several partitions 4 are evenly installed on the inner side of the left side plate 9 and several partitions 4 are located between the upper plate 2 and the lower plate 5. The right side plate 3 is installed above the right end of each partition 4 and the lower plate 5. The lower right end of the upper plate 2 and the lower right end of each partition 4 are respectively connected to the lower right end of the lower plate 5. A gap is left between the upper ends of the adjacent lower right side plates 3 to form an operation port, and a stopper 6 is installed on the front side of the lower end of the upper plate 2 and each partition plate 4 and close to the inner side of the left side plate 9; the handle 1 is installed on the upper plate 2; a transverse rectangular groove is opened below each stopper 6 and on the inner wall of the left side plate 9, and an L-shaped groove is also opened at the inner upper end of each right side plate 3, and the rectangular grooves and the L-shaped grooves on each layer of the material box form a slide 7 for the graphite boat; the upper plate 2 and the rear side of the lower end of each partition plate 4 are connected up and down by a connecting rod 8, and the connecting rod 8 is close to the inner side of the left side plate 9.

[0018] A positioning pin 18 is designed and installed at an upper end of the graphite boat 17 and close to one side.

[0019] The right side plate 3 is provided with a plurality of waist-shaped through holes.

[0020] The left side plate 9 is also provided with a plurality of waist-shaped through holes.

[0021] like Figure 3-5The feeding mechanism for the graphite boat includes a lifting mechanism and an export mechanism. The lifting mechanism includes a mouth frame 10, a lifting plate 11, a screw 12, and a servo motor 13. The mouth frame 10 is installed at a feeding position on one side of the crystal bonding machine. A servo motor 13 is installed in the middle of the upper end of the mouth frame 10. The lower end of the servo motor 13 is connected to the screw 12. A convex block is designed on one side of the lifting plate 11 and a wire hole is designed on the convex block. The lifting plate 11 is installed on one side of the mouth frame 10 and the screw 12 rotates in the wire hole. Guide rods 14 are designed on both sides of the wire hole and are installed on the convex block. The lower end of the guide rod 14 is fixed to one end of the lifting plate 11, and the upper end of the guide rod 14 slides through the upper end of the mouth frame 10. The export mechanism is also installed at a feeding position on one side of the crystal bonding machine and is located on the other side of the lifting plate 11. The export mechanism includes a cylinder 15 and a lever 16. The cylinder 15 is installed on the crystal bonding machine. The front end of the telescopic rod of the cylinder 15 is connected to one end of the lever 16, and the other end of the lever 16 is designed with a downward bending block. The feeding mechanism is installed on the feeding side of the crystal bonding machine, and is used to transport the graphite boat in the material box to the feeding mechanism of the crystal bonding machine. There is a slot in the middle of the lifting plate, which is used to position the lower plate of the material box. When loading, the lower end of the lower plate is just stuck in the slot. The lower end of the screw rod is rotatably installed in the middle of the lower end of the die frame through the bearing. The servo motor drives the screw rod to rotate, driving the lifting plate up and down. The guide rod guides the left and right to prevent the lifting plate from rotating, ensuring that the lifting plate can only move up and down.

[0022] When the present invention is used, several graphite boats with sheets placed thereon are placed in the material box in sequence, and the slideway 7 through which the graphite boat passes slides into the material box, so that the lead wires at the lower ends of the sheets on the graphite boats are suspended in the air, and will not collide to cause adverse conditions such as bending of the leads. Before placing the graphite boats in, the positioning pins at one end of the graphite boats must avoid the block 6 on the material box, and the end of the graphite boat with the positioning pins must first slide into the material box to avoid the block 6, otherwise it cannot be placed in the material box, and the block 6 prevents the graphite boat from being in the wrong direction. After the graphite boat is inserted, the connecting rod 8 at the rear blocks the graphite boat to prevent it from falling from the rear end; after the material box is full, it is moved to the lifting plate 11 on the lifting mechanism of the feeding mechanism, and the servo motor 13 controls the lifting The descending plate 11 rises one material box height each time. At this time, the downward bending block at one end of the lever 16 of the export mechanism is just located behind the material box, and it abuts against the rear end of the graphite boat from the rear side of the operating port of the material box. The cylinder 15 pushes forward, and the graphite boat is pushed from the material box to the feeding mechanism of the solid crystal machine, and it is ensured that one end of the positioning pin of the graphite boat is outward to avoid direction errors and will not affect the operation of the solid crystal machine. After the guide mechanism sends one, it is immediately reset, and the lifting mechanism is activated again to control the rise of one material box height. The guide mechanism pushes again until all the graphite boats in the entire material box are transported. Stop working and wait for the staff to replace a new full material box. After resetting the lifting mechanism, the feeding work is carried out again. The present invention not only solves the problem of direction errors, but also ensures that the feeding is safe and does not damage the pins of the sheet. The graphite boat is easy to transfer, and multiple materials can be fed at a time through the material box, which improves work efficiency.

Claims

1. A graphite boat feeding system, characterized in that: It includes a material box and a handle, the material box is divided into several layers, partitions are installed between adjacent material boxes, and a handle is installed above the material box on the top layer, the material box includes an upper plate, a left plate, a right plate, a partition, a lower plate and a stopper, the left side of the upper plate is connected to the upper end of the left plate, the lower end of the left plate is connected to the left end of the lower plate, the left ends of several partitions are evenly installed on the inner side of the left plate and several partitions are located between the upper plate and the lower plate, each partition and the right end of the lower plate are installed with a right side plate, and a gap is left below the right end of the upper plate and below the right end of each partition to form an operation port, and a gap is left between the upper end of the adjacent right side plate below and the front side of the lower end of the upper plate and each partition and close to the A stopper is installed near the inner side of the left side plate; the handle is installed on the upper plate; a horizontal rectangular groove is opened on the inner side wall of the left side plate below each stopper, and an L-shaped groove is opened on the inner upper end of each right side plate, and the rectangular groove on each layer of the material box and the L-shaped groove form a slideway for the graphite boat; the upper plate and the rear side of the lower end of each partition are connected up and down by a connecting rod, and the connecting rod is close to the inner side of the left side plate; a positioning pin is designed and installed at the upper end of the graphite boat and near one side; a number of waist-shaped through holes are opened on the right side plate; a number of waist-shaped through holes are also opened on the left side plate; When the graphite boat material box is in use, several graphite boats with sheets placed on them are placed in the material box in turn, and the graphite boats slide into the material box through the slideway, so that the leads at the lower ends of the sheets on the graphite boats are suspended in the air, and will not collide to cause bad bending of the leads. Before putting it in, the positioning pin at one end of the graphite boat must avoid the block on the material box, and the end of the graphite boat with the positioning pin must first slide into the material box to avoid the block, otherwise it cannot be placed in the material box. The block prevents the graphite boat from going in the wrong direction. After the graphite boat is inserted, the connecting rod at the back blocks the graphite boat to prevent it from falling from the rear end; after the material box is full, it moves to the lifting plate on the lifting mechanism of the feeding mechanism, and the servo motor controls the lifting Each time the plate rises by a material box height, the downward bending block at one end of the lever of the export mechanism is just located behind the material box, and it abuts against the rear end of the graphite boat from the rear side of the operating port of the material box. The cylinder pushes forward, and the graphite boat is pushed from the material box to the feeding mechanism of the crystal bonding machine, and it is ensured that one end of the positioning pin of the graphite boat is outward to avoid the wrong direction and will not affect the operation of the crystal bonding machine. After the guide mechanism sends one, it is immediately reset, and the lifting mechanism moves again to control the rise of one material box height. The guide mechanism pushes again until all the graphite boats in the entire material box are transported, and the work stops. After the staff replaces a new full material box and resets the lifting mechanism, the feeding work is carried out again; The feeding mechanism for the graphite boat includes a lifting mechanism and an exporting mechanism. The lifting mechanism includes a mouth frame, a lifting plate, a screw and a servo motor. The mouth frame is installed at a feeding position on one side of the crystal bonding machine. A servo motor is installed in the middle of the upper end of the mouth frame. The lower end of the servo motor is connected to a screw. A convex block is designed on one side of the lifting plate and a wire hole is designed on the convex block. The lifting plate is installed on one side of the mouth frame and the screw rotates in the wire hole. Guide rods are designed on both sides of the wire hole and are installed on the convex block. The lower end of the guide rod is fixed to one end of the lifting plate, and the upper end of the guide rod slides through the upper end of the mouth frame. The exporting mechanism is also installed at a feeding position on one side of the crystal bonding machine and is located on the lifting plate. On the other side, the export mechanism includes a cylinder and a lever. The cylinder is installed on the crystal bonding machine. The front end of the telescopic rod of the cylinder is connected to one end of the lever, and the other end of the lever is designed with a downward bending block; the loading mechanism is installed on the feeding side of the crystal bonding machine, and is used to transport the graphite boat in the material box to the loading mechanism of the crystal bonding machine; a slot is opened in the middle of the lifting plate to position the lower plate of the material box. When loading, the lower end of the lower plate is just stuck in the slot; the lower end of the screw rod is rotatably installed in the middle of the lower end of the mouth frame through a bearing; the servo motor drives the screw rod to rotate, driving the lifting plate to move up and down; the guide rod plays a guiding role to prevent the lifting plate from rotating, ensuring that the lifting plate can only move up and down.

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