Dry pressing forming machine for aluminum oxide ceramics

Abstract

The utility model relates to the technical field of aluminum oxide ceramic production, in particular to an aluminum oxide ceramic dry pressing forming machine which comprises a base layer table and an upper layer table, a rotary disc and two sliding plates are arranged on the table top of the base layer table, and a forming die is arranged on the rotary disc. The sliding plates on the two sides slide towards the middle and are clamped on the two sides of the forming mold. A supporting seat is arranged at the top of the upper-layer table, an air cylinder is supported through the supporting seat, and movable plates are rotationally connected to the front ends of the two sides of the supporting seat correspondingly; a guide block is arranged at the front end of the upper-layer table, a sliding rod is inserted into the guide block in a sliding mode, the lower end of the sliding rod is connected with an upper die, the upper end of the sliding rod is connected with an ejector block, the air cylinder pushes the movable plate to rotate around a fulcrum and then controls the lower die to ascend and descend, and the forming lower die can be slidably limited through sliding plates on the two sides to guarantee that the position of the lower die is fixed. Stability is provided for punch forming of the upper die, the situation that powder is stressed unevenly is avoided, and the forming quality of blanks is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of alumina ceramic production, in particular to a dry pressing molding machine for alumina ceramic. Background Art

[0002] Dry pressing of alumina ceramics involves placing mixed ceramic powder into a mold and applying mechanical pressure to form the powder. To quickly remove the molded blank and insert new powder, the mold must be removable. However, removable molds can cause misalignment between the upper and lower molds. To ensure the desired molding effect, the pressing process often requires repeated application. If the upper and lower molds are misaligned, the lower mold can easily shift, resulting in insufficient or misaligned pressing. This uneven force on the powder within the mold can affect the quality of the dry-pressed blank. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a dry pressing molding machine for alumina ceramics.

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

[0005] A dry pressing machine for alumina ceramics comprises a base table and an upper table, wherein the upper table is suspended above the base table via a support platform at its bottom, a rotary disk is rotatably mounted on the base table, a forming mold is disposed on the rotary disk, and the base table is slidably connected to sliding plates on both sides of the rotary disk, and the sliding plates on both sides slide toward the middle and push against both sides of the forming mold;

[0006] The top of the upper platform is provided with a fixed seat and a support seat, a cylinder is rotatably mounted on the fixed seat, and the cylinder is supported by the support seat, and extension arms are extended forward on both sides of the support seat, and the front ends of the extension arms are rotatably connected to movable plates;

[0007] The output end of the cylinder is provided with a locking rod, both ends of the locking rod extend outward and are respectively rotatably fixed on the movable plate on the same side, and connecting arms are respectively sleeved on both sides of the rod body of the locking rod;

[0008] The front end of the upper platform is provided with a guide block, a slide rod is slidably inserted into the guide block, the slide rod is vertically arranged, the lower end of the slide rod is connected to the upper mold, the upper mold extends downward into the forming mold, the upper end of the slide rod is connected to the top block, and the rear end surface of the top block is provided with a U-shaped block;

[0009] The front end of the movable plate is provided with a dial post, which is built into the inner side of the U-shaped block and enables the movable plate to cooperate with the U-shaped block in transmission;

[0010] The lower end of the connecting arm is connected to the sliding plate at the rear side of the base platform.

[0011] In a preferred technical solution, slide rails for the sliding plate to move linearly are respectively provided on both sides of the table top of the base table.

[0012] In a preferred technical solution, movable arms are rotatably connected to both sides of the bottom surface of the turntable, and the movable ends of the movable arms are respectively connected to the sliding plates on both sides.

[0013] In a preferred technical solution, the movable plate is a triangular plate, the connection between the movable plate and the extension arm of the support seat is located at the bottom, and the connection between the movable plate and the locking rod and the matching point between the movable plate and the U-shaped block are both located at the top.

[0014] In a preferred technical solution, the connecting arm vertically passes through the upper platform, the upper end of the connecting arm is fixed to the locking rod by a screw, and the lower end of the connecting arm is rotatably mounted on the corresponding sliding plate below through a rotating shaft.

[0015] The beneficial effects of the utility model are:

[0016] The molding machine proposed in this solution solves the problem that the position of the lower mold in dry pressing molding is easy to move, resulting in uneven pressure on the powder and affecting the molding quality of the product. The lower mold can use the sliding plates on both sides to slide and limit, ensuring that the position of the lower mold is fixed, providing stability for the upper mold stamping molding, avoiding uneven force on the powder, and ensuring the molding quality of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main view of the molding machine proposed in the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the molding machine proposed in the utility model from a top view;

[0019] Figure 3 This is a schematic diagram of the top view of the base platform of the molding machine proposed in the present invention;

[0020] Figure 4 This is a structural diagram of the cylinder and the movable plate proposed in the present invention in an assembled state;

[0021] Figure 5 for Figure 4 Structural schematic diagram of the connecting arm assembly state at A in the figure.

[0022] In the figure: 1. Base platform; 2. Upper platform; 3. Turntable; 4. Slide rail; 5. Sliding plate; 6. Movable arm; 7. Cylinder; 8. Fixed seat; 9. Support seat; 10. Movable plate; 11. Guide block; 12. Slide rod; 13. Top block; 14. U-shaped block; 15. Adjustment column; 16. Upper mold; 17. Connecting arm; 18. Locking rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In this embodiment, refer to Figure 1-5 A dry pressing machine for alumina ceramics includes a base platform 1 and an upper platform 2. The upper platform 2 is suspended above the base platform 1 through a supporting platform at its bottom.

[0025] A turntable 3 is rotatably mounted on the surface of the base platform 1, and a forming mold is provided on the turntable 3. The base platform 1 is slidably connected to sliding plates 5 on both sides of the turntable 3, and slide rails 4 are provided on both sides of the surface of the base platform 1 for the sliding plates 5 to move linearly.

[0026] Movable arms 6 are rotatably connected to both sides of the bottom surface of the turntable 3. The movable ends of the movable arms 6 are connected to the sliding plates 5 on both sides. The two movable arms 6 connect the turntable 3 and the two sliding plates 5 together. When one sliding plate 5 is pushed toward the turntable 3, the sliding plates 5 on both sides will simultaneously approach the turntable 3, eventually causing the sliding plates 5 on both sides to slide toward the center and press against the two sides of the forming mold. The sliding plates 5 on both sides clamp the forming mold in the middle to ensure its position is fixed.

[0027] A fixed seat 8 and a support seat 9 are provided on the top of the upper platform 2. A cylinder 7 is rotatably mounted on the fixed seat 8, and the cylinder 7 is supported by the support seat 9. Extension arms extend forward on both sides of the support seat 9, and the front ends of the extension arms are rotatably connected to movable plates 10.

[0028] Specific description of the assembly structure of the cylinder 7, the support seat 9 and the movable plate 10:

[0029] A locking rod 18 is provided at the output end of the cylinder 7 , and both ends of the locking rod 18 extend outwards and are rotatably fixed on the movable plate 10 on the same side.

[0030] A guide block 11 is provided at the front end of the upper platform 2, and a slide rod 12 is slidably inserted into the guide block 11. The slide rod 12 is vertically arranged, and the lower end of the slide rod 12 is connected to an upper mold 16, and the upper mold 16 extends downward into the forming mold. The upper end of the slide rod 12 is connected to a top block 13, and the rear end face of the top block 13 is provided with a U-shaped block 14. The front end of the movable plate 10 is provided with a dial column 15, and the dial column 15 is built into the inner side of the U-shaped block 14 and enables the movable plate 10 to cooperate with the U-shaped block 14 in transmission.

[0031] It should be noted that the movable plate 10 is a triangular plate. The connection between the movable plate 10 and the extension arm of the support seat 9 is located at the bottom, while the connection between the movable plate 10 and the locking rod 18 and the matching part between the movable plate 10 and the U-shaped block 14 are both located at the top.

[0032] When the cylinder 7 is pushed forward, the movable plate 10 will rotate counterclockwise around the lower fulcrum (i.e., the connection between the movable plate 10 and the extension arm of the support seat 9), and then the U-shaped block 14 can be pushed downward by the adjustment column 15. Since the top block 13, the sliding rod 12 and the upper mold 16 form an integrated structure, the final performance is that the upper mold 16 moves downward and gradually presses on the cavity of the forming mold to complete the dry pressing forming.

[0033] Connecting arms 17 are respectively sleeved on both sides of the rod body of the locking rod 18. The connecting arms 17 vertically penetrate the upper platform 2. The upper end of the connecting arm 17 is fixed to the locking rod 18 by screws, and the lower end of the connecting arm 17 is rotatably installed on the corresponding sliding plate 5 below through a rotating shaft.

[0034] When the cylinder 7 is pushed forward, the connecting arm 17 moves forward synchronously, so that the sliding plate 5 below is also pushed, and the two sliding plates 5 slide synchronously toward the middle, thereby achieving the purpose of locking the middle molding die.

[0035] Behind the cylinder 7, the upper die 16 rises and the sliding plate 5 separates, allowing workers to quickly remove the blank from the mold and add new powder. As the cylinder 7 pushes forward, the mold is locked and the upper die 16 is pressed downward simultaneously. Once the cylinder 7 reaches its limit, the upper die 16 is precisely positioned within the mold cavity, preventing inadequate or misaligned pressing. This ensures uniform force within the mold, improving the quality of dry pressing.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dry pressing machine for alumina ceramics, characterized in that: The utility model comprises a base platform (1) and an upper platform (2), wherein the upper platform (2) is suspended above the base platform (1) through a supporting platform at its bottom, a turntable (3) is rotatably mounted on the table surface of the base platform (1), a forming mold is arranged on the turntable (3), and the base platform (1) is slidably connected to sliding plates (5) on both sides of the turntable (3), and the sliding plates (5) on both sides slide toward the middle and push against both sides of the forming mold; The top of the upper platform (2) is provided with a fixed seat (8) and a support seat (9), a cylinder (7) is rotatably mounted on the fixed seat (8), and the cylinder (7) is supported by the support seat (9), and both sides of the support seat (9) extend forward with extension arms, and the front ends of the extension arms are rotatably connected to movable plates (10); The output end of the cylinder (7) is provided with a locking rod (18), both ends of the locking rod (18) extend outwards and are respectively rotatably fixed on the movable plate (10) on the same side, and both sides of the rod body of the locking rod (18) are respectively sleeved with connecting arms (17); The front end of the upper platform (2) is provided with a guide block (11), a slide bar (12) is slidably inserted into the guide block (11), the slide bar (12) is vertically arranged, the lower end of the slide bar (12) is connected to an upper mold (16), the upper mold (16) extends downward into the forming mold, the upper end of the slide bar (12) is connected to a top block (13), and the rear end surface of the top block (13) is provided with a U-shaped block (14); The front end of the movable plate (10) is provided with a shifting post (15), and the shifting post (15) is built into the inner side of the U-shaped block (14) and enables the movable plate (10) to be in transmission cooperation with the U-shaped block (14); The lower end of the connecting arm (17) is connected to the sliding plate (5) at the rear side of the base platform (1).

2. The dry pressing machine for alumina ceramics according to claim 1, characterized in that: Slide rails (4) for the sliding plate (5) to move linearly are respectively provided on both sides of the table surface of the base table (1).

3. The dry pressing machine for alumina ceramics according to claim 1, characterized in that: Both sides of the bottom surface of the rotary disk (3) are rotatably connected with movable arms (6), and the movable ends of the movable arms (6) are respectively connected to the sliding plates (5) on both sides.

4. The dry pressing machine for alumina ceramics according to claim 1, characterized in that: The movable plate (10) is a triangular plate. The connection between the movable plate (10) and the extension arm of the support seat (9) is located at the bottom, while the connection between the movable plate (10) and the locking rod (18) and the matching position between the movable plate (10) and the U-shaped block (14) are all located at the top.

5. The dry pressing machine for alumina ceramics according to claim 1, characterized in that: The connecting arm (17) vertically penetrates the upper platform (2), the upper end of the connecting arm (17) is fixed to the locking rod (18) by a screw, and the lower end of the connecting arm (17) is rotatably mounted on the corresponding sliding plate (5) below via a rotating shaft.

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