Ceramic powder molding apparatus

Abstract

The utility model discloses a kind of ceramic powder mould pressing devices, including base;The top of the base is provided with mounting cavity, the inside of the mounting cavity is provided with support seat, the top of the support seat is provided with placing frame, the edge of the support seat is provided around the placing frame, the inside of the placing frame is provided with containing mould;The bottom of the support seat is provided with ultrasonic vibration equipment, the support seat and the placing frame are all adopted honeycomb structure.The utility model is cooperated by using the mode of ultrasonic vibration and external pressure, can be evenly distributed to the ceramic powder in the containing mould inside, so that the consistency of green density is higher, improve the overall strength of finished product.

Description

Technical Field

[0001] This utility model relates to the technical field of compression molding, specifically to a ceramic powder compression molding device. Background Technology

[0002] Ultrasonic vibration-assisted ceramic powder molding device, a novel equipment integrating traditional molding technology with ultrasonic vibration, is primarily used to improve the molding quality of ceramic powder. Its core principle is to use high-frequency ultrasonic vibration acting on a mold or indenter, using vibration energy to reduce the frictional resistance between powder particles, promoting effective particle rearrangement and densification, thereby reducing molding defects, improving the strength and dimensional accuracy of the finished product, and optimizing the bonding state of the ceramic powder. The device mainly consists of an ultrasonic generator, transducer, amplitude amplifier, and other components.

[0003] Although using vibration energy can reduce friction between powder particles, promote particle rearrangement and densification, thereby improving the overall strength of the finished product, the following problems still exist in practical applications: When ultrasonic vibration propagates inside the mold, uneven energy distribution is easily caused by mold structure asymmetry or material damping characteristics, resulting in over-vibration or under-vibration in local areas, which ultimately affects the consistency of the green body density. Utility Model Content

[0004] The purpose of this utility model is to provide a ceramic powder molding device to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: A ceramic powder molding device includes a base; The base has an installation cavity at its top, a support seat is provided inside the installation cavity, a placement frame is provided above the support seat, the placement frame is arranged around the edge of the support seat, and a mold is provided inside the placement frame. An ultrasonic vibration device is installed at the bottom of the support base, and both the support base and the placement frame adopt a honeycomb structure.

[0006] As a further description of the above technical solution, support springs are installed at the four corners of the support base, and the other end of the support springs is connected to the bottom inner wall of the mounting cavity.

[0007] As a further description of the above technical solution, an annular groove is provided at the top of the mounting cavity, a positioning groove is provided on the inner wall of the annular groove, and a positioning pin is installed inside the positioning groove.

[0008] As a further description of the above technical solution, a positioning ring is installed on the outside of the mold housing, and a positioning block is installed on the positioning ring corresponding to the position of the positioning groove, and a positioning hole is opened on the top of the positioning block.

[0009] As a further description of the above technical solution, a limiting groove is formed on the inner wall of the mounting cavity, and a limiting slider is fixedly installed on the outside of the support base, with the limiting slider slidably connected to the limiting groove.

[0010] As a further description of the above technical solution, the positioning ring is provided with a handle.

[0011] As a further description of the above technical solution, a bracket is installed on the outside of the base, and a hydraulic push rod is fixedly installed on the top of the bracket. The movable end of the hydraulic push rod passes through the bracket and is connected to a pressure-applying push plate, which corresponds to the position of the mold receiving device.

[0012] As a further description of the above technical solution, the bracket is an L-shaped bracket.

[0013] As a further description of the above technical solution, a positioning rod is installed on the top of the pressure-applying push plate, and the positioning rod passes through the bracket.

[0014] As a further description of the above technical solution, a controller is installed on the outside of the base, and the controller is electrically connected to the hydraulic push rod and the ultrasonic vibration device.

[0015] The beneficial effects of this utility model are as follows: This invention uses a combination of ultrasonic vibration and external pressure to uniformly distribute ceramic powder inside the mold, resulting in higher uniformity of the green body density and improved overall strength of the finished product.

[0016] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a front view of the external structure of this utility model; Figure 2 This is a right-side sectional view of the internal structure of this utility model; Figure 3 This is an exploded view of the internal structure of the molding component of this utility model; Figure 4 This is an exploded bottom view of the internal structure of the molding component of this utility model; Figure 5 This is an exploded top view of the internal structure of the molding component of this utility model.

[0018] Reference numerals: 1. Base; 2. Controller; 3. Molding assembly; 31. Mounting cavity; 32. Ring groove; 33. Limiting groove; 34. Positioning groove; 35. Positioning pin; 36. Support spring; 37. Limiting slider; 38. Support seat; 39. Placement frame; 310. Mold accommodating element; 311. Positioning ring; 312. Positioning block; 313. Positioning hole; 314. Handle; 315. Ultrasonic vibration device; 4. Pressure assembly; 41. L-shaped frame; 42. Hydraulic push rod; 43. Pressure pushing plate; 44. Positioning rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] Example 1: like Figure 1-5 As shown, the ceramic powder molding device provided in this application includes a base 1, a molding component 3 installed on the top wall of the base 1, and a pressure component 4 installed on the rear wall of the base 1. The molding assembly 3 includes a support base 38. A mounting cavity 31 is formed in the top wall of the base 1. An annular groove 32 is formed in the top wall of the base 1 corresponding to the mounting cavity 31. Support springs 36 are installed at the four corners of the inner wall of the mounting cavity 31. The top ends of several support springs 36 are fixedly connected to the bottom wall of the support base 38. A placement frame 39 is fixedly installed in the top wall of the support base 38. A mold 310 is installed in the inner wall of the placement frame 39. A positioning ring 311 is fixedly installed in the outer wall of the mold 310. Positioning grooves 34 are evenly formed in the inner wall of the annular groove 32. Positioning pins 35 are fixedly installed in the inner walls of several positioning grooves 34. Positioning blocks 312 are fixedly installed in the outer wall of the positioning ring 311 corresponding to the positioning grooves 34. Positioning holes 313 are formed in the top walls of several positioning blocks 312. An ultrasonic vibration device 315 is installed on the bottom wall of the support 38. The support 38 and the placement frame 39 adopt a honeycomb mold support structure to imitate the mechanical characteristics of a honeycomb and evenly distribute vibration energy. The support 38 is located in the installation cavity 31. Limiting grooves 33 are opened on the inner wall of the installation cavity 31. Limiting sliders 37 are slidably installed on the inner wall of several limiting grooves 33. Several limiting sliders 37 are fixedly connected to the outer wall of the support 38. The outer wall of the placement frame 39 is slidably connected to the inner wall of the installation cavity 31. The outer wall of the positioning ring 311 is in contact with the inner wall of the ring groove 32. The outer walls of several positioning blocks 312 are in contact with the inner walls of the corresponding positioning grooves 34. The inner walls of several positioning holes 313 are in contact with the outer walls of the corresponding positioning pins 35. The front and rear parts of the top wall of the positioning ring 311 are recessed and have handles 314.

[0021] In this embodiment, when the ceramic powder is molded, after the receiving mold 310 is placed inside the placement frame 39, the support 38 and the placement frame 39 are ultrasonically vibrated by the ultrasonic vibration device 315. The bottom of the support 38 adopts a honeycomb mold support structure to imitate the mechanical properties of a honeycomb and evenly distribute the vibration energy, so that the ultrasonic vibration is transmitted more evenly in the support 38, the placement frame 39 and the receiving mold 310, thereby improving the compactness of the ceramic powder.

[0022] Example 2: like Figure 1-5 As shown, the ceramic powder molding device provided in this application, based on Embodiment 1, has an L-shaped frame 41, i.e., a bracket, fixedly installed on the rear wall of the base 1. A hydraulic push rod 42 is fixedly installed on the top wall of the L-shaped frame 41. The movable end of the hydraulic push rod 42 slides through the L-shaped frame 41 and a pressure push plate 43 is fixedly installed. The pressure push plate 43 is matched with the position of the mold 310. Positioning rods 44 are fixedly installed on both the left and right sides of the top wall of the pressure push plate 43. The top ends of the two positioning rods 44 slide through the L-shaped frame 41 and extend to the outside. A controller 2 is installed on the front wall of the base 1.

[0023] In this embodiment, after the ceramic powder has undergone ultrasonic vibration, the hydraulic pusher 42 pushes the pressure plate 43 downward into the cavity of the mold 310 to apply pressure to the ceramic powder, thereby increasing the overall strength of the finished product.

[0024] Working principle: During operation, the ultrasonic vibration device 315 and hydraulic push rod 42 are electrically connected via controller 2 and external power supply. When ultrasonic molding of ceramic powder begins, the handle 314 drives the positioning ring 311 and the receiving mold 310 into the inner wall of the placement frame 39, so that the positioning ring 311 is located in the inner wall of the ring groove 32, and the positioning block 312 is located in the inner wall of the corresponding positioning groove 34. The positioning pin 35 enters the inner wall of the corresponding positioning hole 313, thereby completing the installation and placement of the receiving mold 310. The ultrasonic vibration device 315 is started to work, which in turn drives the support base 38 and the support spring 36 to start vibrating inside the mounting cavity 31. After the vibration is transmitted through the placement frame 39 and the receiving mold 310, the ceramic powder in the receiving mold 310 is gradually distributed evenly. At the same time, when the support base 38 moves, it will drive the limiting slider 37 to slide in the inner wall of the corresponding limiting groove 33 to prevent the support base 38 and the placement frame 39 from shifting positions. When the support base 38 moves, it will vibrate at a low frequency under the elastic action of the support spring 36.

[0025] After ultrasonic vibration is completed, the hydraulic push rod 42 pushes the pressure push plate 43 downward, which in turn drives the positioning rod 44 downward. This limits the downward movement path of the pressure push plate 43 to prevent positional deviation. As the pressure push plate 43 moves downward, it gradually enters the cavity of the receiving mold 310 to apply pressure to the ceramic powder. Consequently, the receiving mold 310 drives the positioning ring 311 to bear pressure in the inner wall of the ring groove 32, making the ceramic powder inside the receiving mold 310 more evenly distributed and improving the uniformity of the green body density.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ceramic powder molding device, characterized in that, Including the base; The base has an installation cavity at its top, a support seat is provided inside the installation cavity, a placement frame is provided above the support seat, the placement frame is arranged around the edge of the support seat, and a mold is provided inside the placement frame. An ultrasonic vibration device is provided at the bottom of the support base, and both the support base and the placement frame adopt a honeycomb structure. A bracket is installed on the outside of the base, and a hydraulic push rod is fixedly installed on the top of the bracket. The movable end of the hydraulic push rod passes through the bracket and is connected to a pressure-applying push plate, which corresponds to the position of the mold receiving device.

2. The ceramic powder molding device according to claim 1, characterized in that, Support springs are installed at the four corners of the support base, and the other end of the support springs is connected to the bottom inner wall of the mounting cavity.

3. The ceramic powder molding device according to claim 1, characterized in that, The top of the mounting cavity is provided with an annular groove, the inner wall of the annular groove is provided with a positioning groove, and a positioning pin is installed inside the positioning groove.

4. The ceramic powder molding apparatus according to claim 3, characterized in that, A positioning ring is installed on the outside of the mold housing, and a positioning block is installed on the positioning ring corresponding to the position of the positioning groove. A positioning hole is opened on the top of the positioning block.

5. The ceramic powder molding apparatus according to claim 1, characterized in that, The inner wall of the mounting cavity is provided with a limiting groove, and a limiting slider is fixedly installed on the outside of the support base. The limiting slider is slidably connected to the limiting groove.

6. The ceramic powder molding apparatus according to claim 4, characterized in that, The positioning ring is provided with a handle.

7. The ceramic powder molding apparatus according to claim 1, characterized in that, The bracket is an L-shaped bracket.

8. The ceramic powder molding apparatus according to claim 1, characterized in that, A positioning rod is installed on the top of the pressure-applying push plate, and the positioning rod passes through the bracket.

9. The ceramic powder molding apparatus according to claim 1, characterized in that, A controller is mounted on the outside of the base, and the controller is electrically connected to the hydraulic push rod and the ultrasonic vibration device.

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