Blanking slicking device for silicon nitride substrate production

Abstract

The utility model relates to a blanking slicking device for silicon nitride substrate production, in particular to the technical field of silicon nitride substrate production. The scraper device comprises a bottom plate, a lifting mechanism, a U-shaped plate, a ball, a side plate, a screw rod, a driving motor, a moving block, a transmission mechanism, a rotating shaft, a handle and scrapers, and the scrapers have two different lengths and comprise the first scraper and the second scraper. In the actual use process, the actual lengths of the first scraping plate and the second scraping plate can be set according to requirements so as to meet the requirement for scraping the silicon nitride substrates of different sizes in the production process, the moving block can be smoother in the moving process through the design of the balls, the moving resistance is reduced, and the scraping effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon nitride substrate production, in particular to a material blanking and leveling device for silicon nitride substrate production. Background Art

[0002] With the development of human technology, more and more electric-driven motor equipment are being developed. Aircraft, high-speed railways, ships, electric vehicles, etc. are all developing in the direction of electric drive, which means environmental protection, pollution reduction, energy saving, and high automation level. Due to the high power of electric drive, the heat dissipation problem of the insulated gate bipolar transistor (IGBT) that controls the motor and high-power devices has become very important. In the past, alumina ceramic substrates were commonly used as thermal conductive substrates, but their bending strength was not high, about 300MPa, and their thermal conductivity was not high, generally about 20W / mk. The thermal conductivity of aluminum nitride ceramic substrates is greater than 120W / mk, but the bending strength is not high, about 300MPa. Both alumina ceramic substrates and aluminum nitride ceramic substrates cannot fully meet the requirements of high-power components. How to make the ceramic substrate have a thermal conductivity greater than 90W / mk, a bending strength greater than 800MPa, and a fracture toughness greater than 7Mpa.m1 / 2 has become the top priority in the field of ceramic substrates.

[0003] The various technical parameters of silicon nitride high thermal conductivity ceramic substrates can fully meet this requirement. At present, the size of high-strength and high thermal conductivity silicon nitride substrates is mainly square with a side length of 100mm-200mm and a thickness of 0.3-0.7mm. During the production process of silicon nitride high thermal conductivity ceramic substrates, a scraping device is required to achieve scraping when unloading. The existing scraping device has only one scraper size, which cannot achieve scraping when producing silicon nitride substrates of different sizes. In addition, the scraper in the existing scraping device has a large resistance during movement, which affects the scraping effect. Utility Model Content

[0004] (1) Technical solution

[0005] In order to solve the above technical problems, the utility model provides a material scraping device for silicon nitride substrate production, including a bottom plate, a lifting mechanism, a U-shaped plate, a ball, a side plate, a screw, a driving motor, a moving block, a transmission mechanism, a rotating shaft, a handle, and a scraper. Two U-shaped plates are arranged directly above the bottom plate, and the lifting mechanism for driving the U-shaped plate to lift is connected between the bottom plate of each U-shaped plate and the top of the bottom plate. A plurality of the ball bearings are buried on the inner wall of the bottom plate of the U-shaped plate, and the side plates are arranged on the tops of both ends of each U-shaped plate. The screw is rotatably installed between the two side plates on the template, and the driving motor drives the two screws to rotate through the transmission mechanism. The screw is provided with a moving block matching the screw, and the lower end of the moving block is in contact with the ball. The rotating shaft is rotatably installed between the two moving blocks, and one end of the rotating shaft passes through one of the moving blocks and is connected to the handle, and the handle is fixed to one of the moving blocks by a pin. A scraper is provided on the rotating shaft, and the scraper includes a first scraper and a second scraper of different lengths.

[0006] Preferably, the lifting mechanism comprises a lifting cylinder mounted on the bottom plate, the piston rod of the lifting cylinder is arranged upward and the upper end is connected to the U-shaped plate bottom plate.

[0007] Preferably, the angle between the first scraper and the second scraper is 180 degrees.

[0008] Preferably, the transmission mechanism includes a driving wheel, a driven wheel, and a belt, one end of the screw rod of one of them passes through the corresponding side plate and is fixedly connected to the driving wheel, and one end of the screw rod of the other one passes through the corresponding side plate and is fixedly connected to the driven wheel, and the driving wheel and the driven wheel are connected by the belt.

[0009] Preferably, the handle is provided with a latch hole for inserting the latch.

[0010] Preferably, one of the moving blocks is provided with a fixing hole for inserting the latch pin, and the number of the fixing holes is two and the included angle is 180 degrees.

[0011] (2) Beneficial effects

[0012] The utility model provides a material blanking and leveling device for silicon nitride substrate production. Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The scraper is provided with two different lengths, including a first scraper and a second scraper. In actual use, the actual lengths of the first scraper and the second scraper can be set according to needs to meet the scraping requirements during the production process of silicon nitride substrates of different sizes.

[0014] 2. The design of the ball bearing can make the moving block smoother during movement, reduce the movement resistance and improve the scraping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front structural schematic diagram of the utility model.

[0016] Figure 2 It is a partial side sectional view of the utility model.

[0017] Figure 3 It is a schematic diagram of the structure when the first scraper, the second scraper and the rotating shaft are connected in the utility model.

[0018] The accompanying drawings are marked as: 1-bottom plate, 2-lifting mechanism, 21-lifting cylinder, 22-piston rod, 3-U-shaped plate, 4-ball, 5-side plate, 6-screw, 61-drive motor, 7-moving block, 71-fixing hole, 8-transmission mechanism, 81-driving wheel, 82-driven wheel, 83-belt, 9-rotating shaft, 10-handle, 101-pin hole, 11-scraper, 111-first scraper, 112-second scraper. DETAILED DESCRIPTION

[0019] The utility model is further described in conjunction with the accompanying drawings and embodiments.

[0020] like Figures 1 to 3 As shown, the utility model described in the present invention is a material blanking and scraping device for silicon nitride substrate production, comprising a bottom plate 1, a lifting mechanism 2, a U-shaped plate 3, a ball 4, a side plate 5, a screw 6, a drive motor 61, a moving block 7, a transmission mechanism 8, a rotating shaft 9, a handle 10, and a scraper 11. Two U-shaped plates 3 are arranged directly above the bottom plate 1, and the lifting mechanism 2 for driving the U-shaped plate 3 to rise and fall is connected between the bottom plate of each U-shaped plate 3 and the top of the bottom plate 1. A plurality of the ball 4 are buried on the inner wall of the bottom plate of the U-shaped plate 3. The side plates 5 are arranged on the top of both ends of each U-shaped plate 3, and a rotatable installation is arranged between the two side plates 5 on each U-shaped plate 3. There is the screw rod 6, and the driving motor 61 drives the two screw rods 6 to rotate through the transmission mechanism 8. The screw rod 6 is provided with the moving block 7 matching the screw rod 6, and the lower end of the moving block 7 is in contact with the ball 4. The rotating shaft 9 is rotatably installed between the two moving blocks 7. One end of the rotating shaft 9 passes through one of the moving blocks 7 and is connected to the handle 10. The handle 10 is fixed to one of the moving blocks 7 by a pin, which can effectively prevent the scraper 11 from rotating during the scraping process; the scraper 11 is provided on the rotating shaft 9, and the scraper 11 includes a first scraper 111 and a second scraper 112 of different lengths.

[0021] The lifting mechanism 2 includes a lifting cylinder 21 installed on the bottom plate 1 , and a piston rod 22 of the lifting cylinder 21 is arranged upward and the upper end is connected to the bottom plate of the U-shaped plate 3 .

[0022] The included angle between the first scraper 111 and the second scraper 112 is 180 degrees.

[0023] The transmission mechanism 8 includes a driving wheel 81, a driven wheel 82, and a belt 83. One end of the screw rod 6 of one of them passes through the corresponding side plate 5 and is fixedly connected to the driving wheel 81, and one end of the screw rod 5 of the other one passes through the corresponding side plate 5 and is fixedly connected to the driven wheel 82. The driving wheel 81 and the driven wheel 82 are connected by the belt 83.

[0024] The handle 10 is provided with a latch hole 101 for inserting the latch, and one of the moving blocks 7 is provided with a fixing hole 71 for inserting the latch. The number of the fixing holes 71 is two and the included angle is 180 degrees.

[0025] In actual work, a mold with silicon nitride substrate production raw materials is placed on the base plate 1, and then the lifting cylinder 21 is started to drive the piston rod 22 to descend and then drive the scraper 11 to contact the production raw materials, and then the drive motor 61 is started to drive the active wheel 81 to rotate and then drive the driven wheel 82 to rotate, thereby realizing the simultaneous rotation of the two screws 6. The simultaneous rotation of the two screws 6 drives the two moving blocks 7 to move, thereby realizing the movement of the scraper 11 to scrape the production raw materials flat. The design of the ball 4 can make the moving block 7 smoother during the movement process, reduce the movement resistance, and improve the scraping effect.

[0026] The scraper 11 is provided with two different lengths, including a first scraper 111 and a second scraper 112. In actual use, the actual lengths of the first scraper 111 and the second scraper 112 can be set according to needs to meet the needs of scraping silicon nitride substrates of different sizes during production.

[0027] Taking the side length of the substrate as 100 mm as an example, the length of the first scraper 111 can be set to 100 mm. During use, the handle 10 can be rotated to drive the rotating shaft 9 to rotate so that the first scraper 111 is perpendicular to and in contact with the production material, and then the pin is inserted into the corresponding pin hole 101 and the fixing hole 71 to fix the handle 10. Then the drive motor 61 is started to drive the active wheel 81 to rotate and then drive the driven wheel 82 to rotate, thereby realizing the simultaneous rotation of the two screws 6. The simultaneous rotation of the two screws 6 drives the two moving blocks 7 to move, thereby realizing the movement of the scraper 11 to scrape the production material flat.

[0028] Taking the side length of the substrate as 150mm as an example, the length of the second scraper 112 can be set to 150mm. During use, the handle 10 can be rotated to drive the rotating shaft 9 to rotate so that the second scraper 112 is perpendicular to and in contact with the production material, and then the pin is inserted into the corresponding pin hole 101 and the fixing hole 71 to fix the handle 10, and then the drive motor 61 is started to drive the active wheel 81 to rotate and then drive the driven wheel 82 to rotate, thereby realizing the simultaneous rotation of the two screws 6. The simultaneous rotation of the two screws 6 drives the two moving blocks 7 to move, thereby realizing the movement of the scraper 11 to scrape the production material flat.

[0029] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but the utility model is not limited to these embodiments. It should be pointed out that for ordinary technicians in this field. Under the premise of not departing from the purpose of the utility model, any improvement made shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A blanking and leveling device for silicon nitride substrate production, characterized in that: The invention comprises a bottom plate (1), a lifting mechanism (2), a U-shaped plate (3), a ball bearing (4), a side plate (5), a screw rod (6), a driving motor (61), a moving block (7), a transmission mechanism (8), a rotating shaft (9), a handle (10), and a scraper (11). Two U-shaped plates (3) are arranged directly above the bottom plate (1). The lifting mechanism (2) for driving the U-shaped plate (3) to be lifted and lowered is connected between the bottom plate of each U-shaped plate (3) and the top of the bottom plate (1). A plurality of ball bearings (4) are embedded on the inner wall of the bottom plate of the U-shaped plate (3). The side plates (5) are arranged on the top of both ends of each U-shaped plate (3). A rotating shaft (9) is rotatably installed between the two side plates (5) on each U-shaped plate (3). The screw rod (6), the driving motor (61) drives the two screw rods (6) to rotate through the transmission mechanism (8), the screw rod (6) is provided with a moving block (7) matching the screw rod (6), the lower end of the moving block (7) is in contact with the ball (4), the rotating shaft (9) is rotatably installed between the two moving blocks (7), one end of the rotating shaft (9) passes through one of the moving blocks (7) and is connected to the handle (10), the handle (10) is fixed to one of the moving blocks (7) by a latch, and the rotating shaft (9) is provided with a scraper (11), and the scraper (11) includes a first scraper (111) and a second scraper (112) of different lengths.

2. A material blanking and leveling device for producing silicon nitride substrates according to claim 1, characterized in that: The lifting mechanism (2) comprises a lifting cylinder (21) mounted on the bottom plate (1); a piston rod (22) of the lifting cylinder (21) is arranged upward and the upper end is connected to the bottom plate of the U-shaped plate (3).

3. A material blanking and leveling device for producing silicon nitride substrates according to claim 1, characterized in that: The included angle between the first scraper (111) and the second scraper (112) is 180 degrees.

4. A material blanking and leveling device for producing silicon nitride substrates according to claim 1, characterized in that: The transmission mechanism (8) comprises a driving wheel (81), a driven wheel (82), and a belt (83); one end of the screw rod (6) of one of the driving wheels passes through the corresponding side plate (5) and is fixedly connected to the driving wheel (81); one end of the screw rod (6) of the other of the driving wheels passes through the corresponding side plate (5) and is fixedly connected to the driven wheel (82); the driving wheel (81) and the driven wheel (82) are connected via the belt (83).

5. The material blanking and leveling device for producing silicon nitride substrates according to claim 1, characterized in that: The handle (10) is provided with a latch hole (101) for inserting the latch.

6. The device for scraping and leveling silicon nitride substrates according to claim 1, characterized in that: One of the moving blocks (7) is provided with a fixing hole (71) for inserting the latch pin, and the number of the fixing holes (71) is two and the included angle is 180 degrees.

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