CN215433270U

CN215433270U - Full-ring-shaped casting die for wafer grinding disc

Info

Publication number: CN215433270U
Application number: CN202120764349.8U
Authority: CN
Inventors: 柯振芳
Original assignee: Jinxi Dongqi Mechanical Equipment Co ltd
Current assignee: Jinxi Dongqi Mechanical Equipment Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2022-01-07
Anticipated expiration: 2031-04-14

Abstract

A full-ring casting mold for a wafer grinding disc comprises a shell, a support frame, a telescopic column, a transverse adjusting device, a longitudinal adjusting device, a horizontal ruler, a pressing plate and an overflow pipe, wherein the bottom of the inner wall of the shell is connected with a raw material storage device; the raw material storage device is connected with the hydraulic device through a connecting pipe, and a one-way valve is arranged on the connecting pipe and faces the hydraulic device; the hydraulic device is connected with the lifting interface device through a connecting pipe, and a one-way valve is arranged on the connecting pipe and faces the lifting interface device; the bottom of the inner wall of the shell is connected with a lifting rotating device; the lifting rotating device is rotationally connected with the mould tray; the bottom of the inner wall of the shell is connected with the rotating device; the rotating device is contacted with the bottom of the mould tray; the filling pipe is positioned right above the lifting interface device, the problem that air bubbles are contained in a mould in the casting process can be effectively avoided through the circumferentially distributed casting pipes, and the completeness and accuracy of the casting plasticity structure can be effectively guaranteed through the combination of the overflow pipe and the one-way valve.

Description

Full-ring-shaped casting die for wafer grinding disc

Technical Field

The utility model relates to the technical field of casting and casting molds, in particular to a full-ring casting and casting mold for a wafer grinding disc.

Background

Silicon semiconductor integrated circuits are used more and more widely, wherein the silicon semiconductor integrated circuits all need to use wafers, and the wafers used for the silicon semiconductor integrated circuits are processed in the early stage. The silicon semiconductor integrated circuit chip can be processed by firstly polishing a wafer into required thickness and then cutting the wafer, and the problems that the existing wafer grinding disc casting and casting mold is insufficient in mold filling, and air bubbles are easily generated and the like exist.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In order to solve the technical problems in the background art, the utility model provides a full-ring casting die for a wafer grinding disc, the problem that air bubbles are contained in the die in the casting process can be effectively avoided through circumferentially distributed casting pipes, and the structural integrity and accuracy of casting plasticity can be effectively ensured through the combination of an overflow pipe and a one-way valve.

(II) technical scheme

The utility model provides a full-ring casting die for a wafer grinding disc, which comprises a shell, a support frame, a telescopic column, a transverse adjusting device, a longitudinal adjusting device, a level bar, a pressing plate, an overflow pipe, a raw material storage device, a rotating device, a hydraulic device, a lifting interface device, a lifting rotating device, a die tray, a casting pipe and a filling pipe, wherein the support frame is arranged on the shell;

the bottom of the inner wall of the shell is connected with a raw material storage device; the raw material storage device is connected with the hydraulic device through a connecting pipe, and a one-way valve is arranged on the connecting pipe and faces the hydraulic device; the hydraulic device is connected with the lifting interface device through a connecting pipe, and a one-way valve is arranged on the connecting pipe and faces the lifting interface device; the bottom of the inner wall of the shell is connected with a lifting rotating device; the lifting rotating device is rotationally connected with the mould tray; the bottom of the inner wall of the shell is connected with the rotating device; the rotating device is contacted with the bottom of the mould tray; a casting pipe is arranged on the inner wall of the mould tray; the casting pipe is communicated with the filling pipe; the filling pipe is positioned right above the lifting interface device.

Preferably, the top of the shell is connected with the support frame; one end of the support frame, which is far away from the shell, is connected with the telescopic column; the telescopic column is connected with the transverse adjusting device; the bottom of the transverse adjusting device is connected with the longitudinal adjusting device; the arrangement directions of the longitudinal adjusting device and the transverse adjusting device are mutually vertical; the bottom of the longitudinal adjusting device is connected with the pressing plate; a level ruler is arranged on the side surface of the pressing plate; the bottom of the pressing plate is provided with grinding grains; grinding the grains towards a mould tray; the top of the pressing plate is connected with an overflow pipe; the overflow pipe is provided with scale marks and a one-way valve.

Preferably, still include cooling device, cooling device includes the air-blower and rotates out the tuber pipe, rotates to be equipped with on the tuber pipe and rotates the support, rotates the support and is connected with shells inner wall side, and the air-blower is connected with shells inner wall side and rotates out the tuber pipe towards the mould tray.

Preferably, the raw material storage device comprises a tank body, a heating device and a stirring device, the stirring device comprises a motor, a stirring shaft and a stirring blade, the motor is connected with the top of the tank body, the output end of the motor is connected with the stirring shaft, the stirring shaft is connected with the stirring blade, the heating device is connected with the side face of the inner wall of the tank body, and the tank body is connected with the bottom of the inner wall of the shell.

Preferably, hydraulic means includes thrust unit and slider, thrust unit includes the motor, the carousel with rotate the connecting rod, slider includes hydraulic pressure board and hydraulic pressure cavity, it is connected to rotate the connecting rod and rotate the hydraulic pressure board, hydraulic pressure board and hydraulic pressure cavity sliding connection rotate the connecting rod and rotate with the carousel and be connected, the carousel is connected with the motor output, hydraulic pressure cavity all is equipped with the check valve with the connecting pipe junction, the hydraulic pressure cavity is connected bottom shells inner wall, the motor is connected bottom shells inner wall.

Preferably, the lifting rotating device comprises a lifting rod and a rotating connecting piece, the lifting rod is connected with the bottom of the inner wall of the shell, the lifting rod is rotatably connected with the rotating connecting piece, and the rotating connecting piece is connected with the mould tray.

Preferably, the top of the rotating device is provided with a roller, the inside of the rotating device is provided with a power device, the power device is in transmission connection with the roller, and the roller is pressed against the die tray.

Preferably, the lifting interface device is provided with a filling joint, the diameter of the filling joint is the same as that of the filling pipe, and the outer peripheral surface of the filling joint is provided with a rubber sealing ring.

The technical scheme of the utility model has the following beneficial technical effects:

according to the utility model, the problem that the air bubbles are contained in the mold in the casting process can be effectively avoided through the circumferentially distributed casting pipes, the structural integrity and accuracy of casting plasticity can be effectively ensured through the combination of the overflow pipe and the one-way valve, air in the raw material can be effectively taken out through the combination of the pressing plate and the mold tray, so that the raw material in the mold is more compact, the horizontal direction of the pressing plate can be ensured through the transverse adjusting device and the longitudinal adjusting device, the surface of the grinding disc is smooth, the raw material can be rapidly cooled at multiple angles through the rotating device and the cooling device, so that the casting shaping is effectively ensured, the thermal melting is avoided, and the service life of the mold tray is prolonged.

Drawings

Fig. 1 is a schematic structural view of a full-ring casting mold for a wafer polishing disk according to the present invention.

Fig. 2 is a side view of a full-ring casting mold for a wafer polishing disk according to the present invention.

Fig. 3 is a schematic structural view of a mold tray in a full-circle casting mold for a wafer polishing disc according to the present invention.

Fig. 4 is a rear view of a mold tray in a full-circle casting mold for a wafer polishing disc according to the present invention.

Reference numerals: 1. a housing; 2. a support frame; 3. a telescopic column; 4. a lateral adjustment device; 5. a longitudinal adjustment device; 6. a level bar; 7. a pressing plate; 8. grinding the grains; 9. an overflow pipe; 10. a raw material storage device; 11. a rotating device; 12. a hydraulic device; 13. a lifting interface device; 14. a lifting rotating device; 15. a mold tray; 16. a casting tube; 17. a filling pipe; 18. and a cooling device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-4, the full-ring casting mold for a wafer polishing disc according to the present invention includes a housing 1, a supporting frame 2, a telescopic column 3, a horizontal adjusting device 4, a longitudinal adjusting device 5, a level bar 6, a pressing plate 7, an overflow pipe 9, a raw material storage device 10, a rotating device 11, a hydraulic device 12, a lifting interface device 13, a lifting rotating device 14, a mold tray 15, a casting pipe 16, and a filling pipe 17;

the bottom of the inner wall of the shell 1 is connected with a raw material storage device 10; the raw material storage device 10 is connected with the hydraulic device 12 through a connecting pipe, and a one-way valve is arranged on the connecting pipe and faces the hydraulic device 12; the hydraulic device 12 is connected with the lifting interface device 13 through a connecting pipe, a one-way valve is arranged on the connecting pipe, and the one-way valve faces the direction of the lifting interface device 13; the bottom of the inner wall of the shell 1 is connected with a lifting rotating device 14; the lifting rotating device 14 is rotationally connected with the mould tray 15; the bottom of the inner wall of the shell 1 is connected with a rotating device 11; the rotating device 11 is contacted with the bottom of the mould tray 15; a casting pipe 16 is arranged on the inner wall of the mould tray 15; the casting pipe 16 is communicated with the filling pipe 17; the fill pipe 17 is located directly above the riser interface 13.

In the utility model, raw materials in the raw material storage device 10 can be pumped out from the hydraulic device 12 and filled into the mold tray 15, the raw materials can be filled through the connection of the lifting interface device 13 and the filling pipe 17, the filling of the raw materials can be ensured, the current filling amount can be displayed through the overflow pipe 9 on the pressing plate 7, the filling is stopped when the height of the overflow pipe 9 is higher than that of a one-way valve, the one-way valve can effectively prevent the raw materials in the overflow pipe 9 from flowing back, the pressing plate 7 can be used for taking out bubbles in the raw materials and simultaneously taking the grains 8 as the raw materials for qualification, the processing links are reduced, the production efficiency is improved, and after the shaping is finished, the rotating device 11 is used for driving the mold tray 15 to rotate, so that the cooling device 18 can effectively cool the mold tray 15.

In an alternative embodiment, the top of the shell 1 is connected with the support frame 2; one end of the support frame 2 far away from the shell 1 is connected with a telescopic column 3; the telescopic column 3 is connected with a transverse adjusting device 4; the bottom of the transverse adjusting device 4 is connected with the longitudinal adjusting device 5; the longitudinal adjusting device 5 and the transverse adjusting device 4 are arranged in the directions perpendicular to each other; the bottom of the longitudinal adjusting device 5 is connected with a pressing plate 7; a level ruler 6 is arranged on the side surface of the pressing plate 7; the bottom of the pressing plate 7 is provided with grinding grains 8; grinding the grain 8 towards the mould tray 15; the top of the pressing plate 7 is connected with an overflow pipe 9; the overflow pipe 9 is provided with scale marks and a one-way valve.

In an optional embodiment, the cooling device 18 is further included, the cooling device 18 includes a blower and a rotary air outlet pipe, a rotary bracket is arranged on the rotary air outlet pipe, the rotary bracket is connected with the side surface of the inner wall of the shell 1, and the blower is connected with the side surface of the inner wall of the shell 1 to rotate the air outlet pipe towards the mold tray 15.

In an alternative embodiment, the raw material storage device 10 comprises a tank, a heating device and a stirring device, wherein the stirring device comprises a motor, a stirring shaft and a stirring blade, the motor is connected with the top of the tank, the output end of the motor is connected with the stirring shaft, the stirring shaft is connected with the stirring blade, the heating device is connected with the side surface of the inner wall of the tank, and the tank is connected with the bottom of the inner wall of the shell 1.

In an optional embodiment, the hydraulic device comprises a pushing device and a sliding device, the pushing device comprises a motor, a rotary table and a rotating connecting rod, the sliding device comprises a hydraulic plate and a hydraulic cavity, the rotating connecting rod is connected with the hydraulic plate in a rotating mode, the hydraulic plate is connected with the hydraulic cavity in a sliding mode, the rotating connecting rod is connected with the rotary table in a rotating mode, the rotary table is connected with the output end of the motor, one-way valves are arranged at the joints of the hydraulic cavity and the connecting pipe, the hydraulic cavity is connected with the bottom of the inner wall of the shell 1, and the motor is connected with the bottom of the inner wall of the shell 1.

In an alternative embodiment, the lifting and rotating means 14 comprises a lifting rod connected to the bottom of the inner wall of the housing 1 and a rotating connection member connected to the mold tray 15.

In an alternative embodiment, the top of the rotating device 11 is provided with a roller, the inside of the rotating device 11 is provided with a power device, the power device is in transmission connection with the roller, and the roller is pressed against the die tray 15.

In an alternative embodiment, the lifting interface 13 is provided with a filling joint, the diameter of the filling joint is the same as that of the filling pipe 17, and a rubber sealing ring is arranged on the outer peripheral surface of the filling joint.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A full-ring casting mould for a wafer grinding disc is characterized by comprising a shell (1), a support frame (2), a telescopic column (3), a transverse adjusting device (4), a longitudinal adjusting device (5), a level bar (6), a pressing plate (7), an overflow pipe (9), a raw material storage device (10), a rotating device (11), a hydraulic device (12), a lifting interface device (13), a lifting rotating device (14), a mould tray (15), a casting pipe (16) and a filling pipe (17);

the bottom of the inner wall of the shell (1) is connected with a raw material storage device (10); the raw material storage device (10) is connected with the hydraulic device (12) through a connecting pipe, a one-way valve is arranged on the connecting pipe, and the one-way valve faces the hydraulic device (12); the hydraulic device (12) is connected with the lifting interface device (13) through a connecting pipe, a one-way valve is arranged on the connecting pipe, and the one-way valve faces the direction of the lifting interface device (13); the bottom of the inner wall of the shell (1) is connected with a lifting rotating device (14); the lifting rotating device (14) is rotationally connected with the mould tray (15); the bottom of the inner wall of the shell (1) is connected with a rotating device (11); the rotating device (11) is contacted with the bottom of the mould tray (15); a casting pipe (16) is arranged on the inner wall of the mould tray (15); the casting pipe (16) is communicated with the filling pipe (17); the filling pipe (17) is positioned right above the lifting interface device (13).

2. The full-toroidal casting mold for the wafer grinding disc as claimed in claim 1, wherein the top of the housing (1) is connected with the supporting frame (2); one end of the support frame (2) far away from the shell (1) is connected with the telescopic column (3); the telescopic column (3) is connected with the transverse adjusting device (4); the bottom of the transverse adjusting device (4) is connected with the longitudinal adjusting device (5); the longitudinal adjusting device (5) and the transverse adjusting device (4) are arranged in mutually vertical directions; the bottom of the longitudinal adjusting device (5) is connected with a pressing plate (7); a horizontal ruler (6) is arranged on the side surface of the pressing plate (7); the bottom of the pressing plate (7) is provided with grinding grains (8); the grinding lines (8) face the mould tray (15); the top of the pressing plate (7) is connected with an overflow pipe (9); the overflow pipe (9) is provided with scale marks and a one-way valve.

3. The full-toroidal casting mold for the wafer grinding disc as claimed in claim 1, further comprising a cooling device (18), wherein the cooling device (18) comprises an air blower and a rotary air outlet pipe, the rotary air outlet pipe is provided with a rotary bracket, the rotary bracket is connected with the side surface of the inner wall of the housing (1), and the air blower is connected with the side surface of the inner wall of the housing (1) and rotates the air outlet pipe to face the mold tray (15).

4. The full-ring casting mold for the wafer grinding disc as claimed in claim 1, wherein the raw material storage device (10) comprises a tank body, a heating device and a stirring device, the stirring device comprises a motor, a stirring shaft and stirring blades, the motor is connected with the top of the tank body, the output end of the motor is connected with the stirring shaft, the stirring shaft is connected with the stirring blades, the heating device is connected with the side surface of the inner wall of the tank body, and the tank body is connected with the bottom of the inner wall of the shell (1).

5. The full-ring casting mold for the wafer grinding disc as claimed in claim 1, wherein the hydraulic device comprises a pushing device and a sliding device, the pushing device comprises a motor, a rotating disc and a rotating connecting rod, the sliding device comprises a hydraulic plate and a hydraulic cavity, the rotating connecting rod is rotatably connected with the hydraulic plate, the hydraulic plate is slidably connected with the hydraulic cavity, the rotating connecting rod is rotatably connected with the rotating disc, the rotating disc is connected with an output end of the motor, one-way valves are arranged at joints of the hydraulic cavity and the connecting pipe, the hydraulic cavity is connected with the bottom of the inner wall of the shell (1), and the motor is connected with the bottom of the inner wall of the shell (1).

6. The full-ring casting mold for the wafer grinding disc as claimed in claim 1, wherein the lifting and rotating device (14) comprises a lifting rod and a rotating connecting piece, the lifting rod is connected with the bottom of the inner wall of the shell (1), the lifting rod is rotatably connected with the rotating connecting piece, and the rotating connecting piece is connected with the mold tray (15).

7. The full-ring casting mold for the wafer grinding disc as claimed in claim 1, wherein the top of the rotating device (11) is provided with a roller, the inside of the rotating device (11) is provided with a power device, the power device is in transmission connection with the roller, and the roller is pressed against the mold tray (15).

8. The full-ring casting die for the wafer grinding disc as claimed in claim 1, wherein a filling joint is arranged on the lifting interface device (13), the diameter of the filling joint is the same as that of the filling pipe (17), and a rubber sealing ring is arranged on the outer peripheral surface of the filling joint.