A dry pressing molding device for preparing ceramic sheets

Abstract

The present invention discloses a dry pressing forming equipment for preparing ceramic sheets, belonging to the technical field of dry pressing forming equipment, which comprises: a machine base, a pressing cavity is opened on the top of the machine base, a bottom plate is arranged in the pressing cavity, a ring plate is fixedly installed on the bottom of the bottom plate, and a rotating drum is rotatably installed on the bottom inner wall of the pressing cavity; a pressing mechanism, the pressing mechanism comprises a pressing plate fixedly connected and a fixed frame fixedly connected to the top of the machine base, and a plurality of hydraulic cylinders are fixedly connected to the bottom of the fixed frame; a feeding mechanism, the feeding mechanism comprises a material frame and an electric push rod. The present invention can automatically detect whether the powder is evenly distributed through the cooperation of the push rod and the disc during the pressing and forming of the ceramic sheets, and automatically control the first impact rod and the second impact rod to repeatedly impact the bottom plate in different directions when the powder is unevenly distributed, so that it vibrates and drives the powder to be evenly distributed, thereby ensuring the quality of the pressing and forming of the ceramic sheets, and realizes automatic loading and unloading in cooperation with the feeding mechanism and the material receiving structure.

Description

Technical Field

[0001] The invention relates to the technical field of dry pressing equipment, and in particular to dry pressing equipment for preparing ceramic sheets. Background Art

[0002] The application of ceramic sheets in transformers is mainly as insulating materials and piezoelectric materials. First of all, ceramic sheets are widely used in transformers due to their excellent insulation properties, playing the role of isolating current and preventing short circuits. This kind of insulating ceramic usually has high electrical insulation strength and good thermal stability, and can maintain stable insulation performance under different environmental conditions. Secondly, ceramic sheets can also be used as piezoelectric materials to make piezoelectric ceramic transformers. Piezoelectric ceramic transformers use the piezoelectric effect to achieve voltage changes through the conversion between electrical energy and mechanical energy. During the production and processing of ceramic sheets, the raw materials need to be placed in a mold for pressing and forming.

[0003] The patent document with publication number CN215660860U discloses a ceramic sheet dry pressing device. The second hydraulic cylinder is started to make the bottom of the mold core contact with the top of the block, and the raw material is placed in the lower mold. The first hydraulic cylinder is started to press the upper mold downward to cooperate with the lower mold and the mold core to press the raw material into shape.

[0004] After forming, the above technical solution starts the second cylinder to eject the formed ceramic sheet from the lower mold to facilitate material removal. However, when adding ceramic powder, it is difficult to ensure that the powder is evenly distributed, and local uneven distribution will occur, resulting in uneven texture of the ceramic sheet after pressing, thereby affecting the quality of its pressing and molding. Therefore, we propose a dry pressing molding equipment for ceramic sheet preparation to solve this problem. Summary of the invention

[0005] The object of the present invention is to provide a dry pressing device for preparing ceramic sheets to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A dry pressing molding device for preparing ceramic sheets, comprising:

[0008] A machine base, a pressing cavity is opened on the top of the machine base, a bottom plate is arranged in the pressing cavity, an annular plate is fixedly installed at the bottom of the bottom plate, a rotating drum is rotatably installed on the bottom inner wall of the pressing cavity, a vertical rod is arranged in the rotating drum, a first impact rod is fixedly connected to the top of the vertical rod, a plurality of vertical plates are slidably connected to the bottom inner wall of the pressing cavity, a second impact rod is fixedly connected to the top of the vertical plate, a connecting column is fixedly connected to the bottom of the second impact rod, a round shell is fixedly sleeved on the top of the outer side of the rotating drum, an arc-shaped protrusion is integrally formed on the inner wall of the round shell, and when the round shell rotates, the second impact rod can be driven to intermittently move close to the vertical rod through the contact between the arc-shaped protrusion and the connecting column;

[0009] A pressing mechanism, the pressing mechanism comprises a pressing plate fixedly connected and a fixing frame fixedly connected to the top of the machine base, a plurality of hydraulic cylinders are fixedly connected to the bottom of the fixing frame, a same mounting shell is fixedly connected to the output ends of the plurality of hydraulic cylinders, the pressing plate is universally rotatably connected to the bottom of the mounting shell, and a disc and a plurality of push rods are slidably connected inside the mounting shell, the bottom ends of the plurality of push rods are movably abutted against the top of the pressing plate, and a pressing plate is fixedly connected to the top of the disc, a control button is fixedly connected to the top inner wall of the mounting shell, and the control button is electrically connected to the hydraulic cylinder;

[0010] The feeding mechanism includes a material frame and an electric push rod. The bottom of the material frame is open, and the top of the material frame is connected to a feed hopper. The output end of the electric push rod is fixedly connected to one side of the material frame. A mounting plate is fixedly installed on one side of the electric push rod, and the mounting plate is fixedly installed on the top of the machine base.

[0011] Preferably, the outer side of the vertical rod is fixedly connected to the same horizontal column, the bottom of the rotating drum is integrally formed with a wedge-shaped protrusion, the wedge-shaped protrusion is movably abutted against the outer side of the corresponding horizontal column, and the top of the horizontal column is fixedly connected to a connecting spring, a plurality of circular grooves are provided at the bottom of the machine base, the top of the connecting spring is fixedly connected to the corresponding circular grooves, a plurality of vertical rods are fixedly connected to the bottom of the machine base, and the horizontal column is slidably sleeved on the outer side of the corresponding vertical rod.

[0012] Preferably, it also includes a material receiving mechanism, which includes a mounting frame, a chain, a stepper motor and a lifting material receiving plate, the lifting material receiving plate is slidably connected to one side of the machine base, and the mounting frame is fixedly connected to one side of the machine base, two sprockets are rotatably installed on the front side of the mounting frame, the chain transmission is installed on the outside of the two sprockets, the output end of the stepper motor is fixedly connected to the inside of one of the sprockets, and the stepper motor is fixedly connected to the rear side of the mounting frame, the outside of the chain is fixedly connected to a side plate, the inside of the side plate is fixedly connected to a plug rod, the front side of the lifting material receiving plate is provided with a socket, the plug rod is movably inserted into the socket, and a touch button is fixedly installed on the top of the machine base, and the touch button is electrically connected to the stepper motor.

[0013] Preferably, a plurality of guide frames are fixedly mounted on the bottom inner wall of the pressing cavity, the vertical plate is slidably sleeved on the outer side of the corresponding guide frame, and a return spring is fixedly connected to the side of the vertical plate away from the vertical rod, and the other end of the return spring is fixedly connected to the corresponding guide frame.

[0014] Preferably, two cylinders are fixedly mounted on the inner wall of the bottom of the pressing cavity, and the output ends of the two cylinders are fixedly connected to the bottom of the base plate.

[0015] Preferably, support plates are fixedly mounted on both inner walls of the pressing cavity, and the support plates are movably abutted against the bottom of the base plate.

[0016] Preferably, a driving motor is fixedly mounted on the bottom inner wall of the pressing cavity, a driving gear is fixedly connected to the output shaft of the driving motor, a driven gear is fixedly sleeved on the outer side of the rotating drum, the driving gear is meshed with the driven gear, and the control button is electrically connected to the driving motor.

[0017] Preferably, a plurality of positioning springs are fixedly connected to the top of the disc, and the top ends of the plurality of positioning springs are fixedly connected to the top inner wall of the mounting shell, a universal rotating seat is fixedly installed on the bottom of the mounting shell, and the bottom of the universal rotating seat is fixedly connected to the positioning seat, and a connecting ball is fixedly connected to the top of the pressing plate, and the connecting ball is universally rotated in the universal rotating seat and the positioning seat.

[0018] Preferably, two guide rails are fixedly connected to the outer side of the machine base, the lifting material receiving plate is slidably sleeved on the outer sides of the two guide rails, and support plates are fixedly installed on the front and rear sides of the top of the machine base, and the support plates are fixedly connected to the bottom of the fixed frame.

[0019] The beneficial effects of the present invention are:

[0020] 1. In the present invention, the dry pressing molding equipment for preparing ceramic sheets is described, which is to add raw material powder for pressing ceramic sheets into the feed hopper, make it enter the material frame, and then control the cylinder to drive the bottom plate to move upward, so that the top surface of the bottom plate is flush with the top surface of the machine base, and then start the electric push rod to drive the material frame to move horizontally. When the material frame moves to the top of the pressing cavity, the cylinder is started to drive the bottom plate to move downward for a distance, so that the powder in the material frame enters the pressing cavity, and then the electric push rod is started to drive the material frame to move right and reset, and then the cylinder is controlled to drive the bottom plate to move downward until it contacts with the support plate to reset, and the hydraulic cylinder is started to drive the installation shell to move downward, and the installation shell drives the pressing plate to move downward, so that the pressing plate enters the inside of the pressing cavity to press and mold the powder;

[0021] 2. In the present invention, in the dry pressing forming equipment for preparing ceramic sheets, when the thickness distribution of the powder in the pressing cavity is uneven, different positions on the bottom of the pressing plate are subjected to different resistances, so that the pressing plate produces a small amount of deflection, and pushes the push rod to move upward by contacting with the push rod, and the push rod pushes the disc to move upward, and the disc drives the pressing plate to move upward so that the pressing plate presses the control button. After the control button is pressed, a control signal is sent to the hydraulic cylinder and the driving motor. After receiving the control signal, the hydraulic cylinder controls the mounting shell to move upward for a distance and then move downward. After receiving the control signal, the driving motor stops after running for a period of time. The driving motor drives the driving gear to rotate through its motor shaft, and the driving gear drives the rotating drum to rotate by meshing with the driven gear. During the rotation process, the rotating drum pushes the horizontal column downward through the wedge-shaped protrusion, and drives the vertical rod and the first impact rod to move downward, while realizing the stretching of the connecting spring. After the rotating drum rotates a certain angle, the wedge-shaped The protrusion is out of contact with the cross column, so that the cross column is reset under the action of the connecting spring, and drives the first impact rod to reset. The first impact rod impacts the bottom of the bottom plate under the action of inertia, causing the bottom plate to vibrate up and down. At the same time, the rotating drum drives the round shell to rotate. The round shell abuts against the connecting column through the arc-shaped protrusion and drives multiple second impact rods to move back and forth intermittently under the action of the reset spring, and impacts the inner wall of the annular plate, causing the bottom plate to vibrate in different horizontal directions. Under the cooperation of the two vibrations, the raw material powder is rolled in the pressing cavity and gradually tends to be flat. The mounting shell moves upward for a distance and then moves downward and drives the pressing plate to move downward to continue to press the powder. When the powder is still unevenly distributed, the above situation will be repeated. When the powder is evenly distributed, different areas at the bottom of the pressing plate are subjected to equal pressure, and the pressing plate will not deflect, so that it can move downward smoothly to achieve the pressing and molding of the powder.

[0022] 3. In the present invention, the dry pressing forming equipment for preparing ceramic sheets, after pressing and forming, starts the hydraulic cylinder to control the mounting shell to reset, and then controls the cylinder to drive the bottom plate to move upward, so that the top surface of the bottom plate 6 is flush with the top surface of the machine base, so that the pressed ceramic sheet can be ejected, and then the electric push rod is started to drive the material frame to move horizontally. The lateral movement of the material frame can push the ceramic sheet onto the lifting receiving plate. When the material frame moves to the top of the pressing cavity, the cylinder is started to drive the bottom plate to move downward for a distance, so that the powder in the material frame enters the pressing cavity, and then Start the electric push rod to drive the material frame to move right and reset, and make the material frame press the touch button, so as to control the stepper motor to rotate a certain angle, and drive the sprocket to rotate, the sprocket drives the chain to operate, the chain drives the plug rod to move downward through the side plate, and the plug rod drives the lifting material receiving plate to drop a certain distance (the distance is the thickness of the ceramic sheet after pressing) through the cooperation with the socket, so that the ceramic sheet formed by the next pressing can be pushed to the top of the ceramic sheet formed this time when the material is received next time, so as to achieve stacking and placement, and then start the hydraulic cylinder to enter the next round of pressing work;

[0023] 4. In the present invention, the dry pressing molding equipment for preparing ceramic sheets can automatically detect whether the powder is evenly distributed through the cooperation of the top rod and the disc during the pressing and molding of the ceramic sheets. When the powder is unevenly distributed, the first impact rod and the second impact rod are automatically controlled to repeatedly impact the bottom plate in different directions to make it vibrate, thereby driving the powder to be evenly distributed, thereby ensuring the quality of the ceramic sheet pressing and molding, and cooperating with the feeding mechanism and the material receiving structure to realize automatic loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a dry pressing molding device for preparing ceramic sheets proposed by the present invention;

[0025] Figure 2 A schematic cross-sectional view of a dry pressing device for preparing a ceramic sheet according to the present invention;

[0026] Figure 3 for Figure 2 A partial enlarged view of part A;

[0027] Figure 4 for Figure 2 A partial enlarged view of part B;

[0028] Figure 5 It is a three-dimensional structural schematic diagram of the pressing mechanism proposed by the present invention;

[0029] Figure 6 It is a partial three-dimensional structural schematic diagram of the pressing mechanism proposed by the present invention;

[0030] Figure 7A schematic diagram of a partial three-dimensional structure of the pressing mechanism proposed by the present invention from another perspective;

[0031] Figure 8 This is a schematic diagram of the split three-dimensional structure of the universal rotating seat and the connecting ball proposed by the present invention;

[0032] Fig. 9 It is a three-dimensional structural schematic diagram of the material receiving mechanism proposed by the present invention;

[0033] Fig.10 This is a three-dimensional structural schematic diagram of the material receiving mechanism proposed by the present invention from another viewing angle;

[0034] Fig.11 This is a schematic diagram of the three-dimensional structure of the feeding mechanism proposed by the present invention;

[0035] Fig.12 A schematic diagram of the three-dimensional structure of the bottom plate, the annular plate, the first impact rod and the second impact rod proposed in the present invention;

[0036] Fig.13 A schematic diagram of the three-dimensional structure of the bottom plate, the annular plate, the first impact rod and the second impact rod provided by the present invention from another perspective;

[0037] Fig.14 It is a schematic diagram of the three-dimensional structure of the rotating drum, the horizontal column and the first impact rod proposed by the present invention;

[0038] Fig.15 This is a schematic diagram of the three-dimensional structure of the rotating drum proposed by the present invention;

[0039] Fig.16 A top view of the rotating drum, the round shell and the second impact rod proposed by the present invention.

[0040] In the figure: 1, machine base; 2, material frame; 201, feed hopper; 202, electric push rod; 3, lifting material receiving plate; 301, mounting frame; 302, plug rod; 303, side plate; 304, sprocket; 305, chain; 306, stepping motor; 3061, touch button; 307, guide rail; 4, pressing plate; 401, connecting ball; 402, universal rotating seat; 403, positioning seat; 5, mounting shell; 501, hydraulic cylinder; 502, fixing frame; 503, support plate; 504, ejector rod; 505 , disc; 506, positioning spring; 507, pressing plate; 508, control button; 6, bottom plate; 7, cylinder; 8, annular plate; 9, rotating drum; 901, wedge-shaped protrusion; 10, vertical rod; 11, first impact rod; 12, second impact rod; 13, connecting column; 14, round shell; 1401, arc-shaped protrusion; 15, vertical plate; 16, return spring; 17, guide frame; 18, driving gear; 19, driving motor; 20, driven gear; 21, horizontal column; 22, connecting spring; 23, support plate. DETAILED DESCRIPTION

[0041] 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.

[0042] Reference Figure 1 - Fig.16 , a dry pressing molding device for preparing ceramic sheets, comprising:

[0043] A machine base 1, a pressing cavity is provided on the top of the machine base 1, a bottom plate 6 is provided in the pressing cavity, an annular plate 8 is fixedly installed at the bottom of the bottom plate 6, a rotating drum 9 is rotatably installed on the bottom inner wall of the pressing cavity, a vertical rod 10 is provided in the rotating drum 9, a first impact rod 11 is fixedly connected to the top of the vertical rod 10, a plurality of vertical plates 15 are slidably connected to the bottom inner wall of the pressing cavity, a second impact rod 12 is fixedly connected to the top of the vertical plates 15, a connecting column 13 is fixedly connected to the bottom of the second impact rod 12, a round shell 14 is fixedly sleeved on the top of the outer side of the rotating drum 9, an arc-shaped protrusion 1401 is integrally formed on the inner wall of the round shell 14, and when the round shell 14 rotates, the second impact rod 12 can be driven to intermittently move close to the vertical rod 10 through the contact between the arc-shaped protrusion 1401 and the connecting column 13;

[0044] A pressing mechanism, the pressing mechanism includes a fixedly connected pressing plate 4 and a fixed frame 502 fixedly connected to the top of the machine base 1, a plurality of hydraulic cylinders 501 are fixedly connected to the bottom of the fixed frame 502, the output ends of the plurality of hydraulic cylinders 501 are fixedly connected to the same mounting shell 5, the pressing plate 4 is universally rotatably connected to the bottom of the mounting shell 5, and a disc 505 and a plurality of push rods 504 are slidably connected inside the mounting shell 5, the bottom ends of the plurality of push rods 504 are all movably abutted against the top of the pressing plate 4, and a pressing plate 507 is fixedly connected to the top of the disc 505, a control button 508 is fixedly connected to the top inner wall of the mounting shell 5, and the control button 508 is electrically connected to the hydraulic cylinder 501;

[0045] The feeding mechanism includes a material frame 2 and an electric push rod 202. The bottom of the material frame 2 is opened, and the top of the material frame 2 is connected to the feed hopper 201. The output end of the electric push rod 202 is fixedly connected to one side of the material frame 2 to facilitate the material frame 2 to move left and right. A mounting plate is fixedly installed on one side of the electric push rod 202, and the mounting plate is fixedly installed on the top of the machine base 1, thereby realizing the installation and fixation of the electric push rod 202.

[0046] In this embodiment, the outer side of the vertical rod 10 is fixedly connected to the same horizontal column 21, and a wedge-shaped protrusion 901 is integrally formed at the bottom of the rotating drum 9. The wedge-shaped protrusion 901 is movably abutted against the outer side of the corresponding horizontal column 21. When the rotating drum 9 drives the wedge-shaped protrusion 901 to rotate, it will intermittently push the horizontal column 21 to move downward, and the top of the horizontal column 21 is fixedly connected to a connecting spring 22. A plurality of circular grooves are provided at the bottom of the machine base 1, and the top of the connecting spring 22 is fixedly connected to the corresponding circular grooves. A plurality of vertical rods 10 are fixedly connected to the bottom of the machine base 1, and the horizontal column 21 is slidably sleeved on the outer side of the corresponding vertical rod 10.

[0047] In this embodiment, it also includes a material receiving mechanism, which includes a mounting frame 301, a chain 305, a stepper motor 306 and a lifting material receiving plate 3. The lifting material receiving plate 3 is slidably connected to one side of the machine base 1, and the mounting frame 301 is fixedly connected to one side of the machine base 1. Two sprockets 304 are rotatably installed on the front side of the mounting frame 301. The chain 305 is transmission-installed on the outside of the two sprockets 304. The output end of the stepper motor 306 is fixedly connected to the inside of one of the sprockets 304, and the stepper motor 306 is fixedly connected to the rear side of the mounting frame 301. The outside of the chain 305 is fixedly connected to the side plate 303, and the inside of the side plate 303 is fixedly connected to the insertion rod 302. A socket is opened on the front side of the lifting material receiving plate 3, and the insertion rod 302 is movably inserted in the socket. A touch button 3061 is fixedly installed on the top of the machine base 1, and the touch button 3061 is electrically connected to the stepper motor 306.

[0048] In this embodiment, a plurality of guide frames 17 are fixedly installed on the bottom inner wall of the pressing cavity, and the vertical plate 15 is slidably sleeved on the outer side of the corresponding guide frame 17 to guide the vertical plate 15, and a reset spring 16 is fixedly connected to the side of the vertical plate 15 away from the vertical rod 10, and the other end of the reset spring 16 is fixedly connected to the corresponding guide frame 17 to reset the vertical plate 15.

[0049] In this embodiment, two cylinders 7 are fixedly installed on the bottom inner wall of the pressing cavity, and the output ends of the two cylinders 7 are fixedly connected to the bottom of the bottom plate 6, so as to facilitate the lifting and lowering of the bottom plate 6 to facilitate the ejection of the pressed ceramic sheet.

[0050] In this embodiment, support plates 23 are fixedly mounted on both inner walls of the pressing cavity, and the support plates 23 are movably abutted against the bottom of the bottom plate 6 .

[0051] In this embodiment, a driving motor 19 is fixedly installed on the bottom inner wall of the pressing cavity, a driving gear 18 is fixedly connected to the output shaft of the driving motor 19, a driven gear 20 is fixedly sleeved on the outer side of the rotating drum 9, the driving gear 18 is meshed with the driven gear 20, and the control button 508 is electrically connected to the driving motor 19.

[0052] In this embodiment, a plurality of positioning springs 506 are fixedly connected to the top of the disc 505, and the top ends of the plurality of positioning springs 506 are fixedly connected to the top inner wall of the mounting shell 5. A universal rotating seat 402 is fixedly installed to the bottom of the mounting shell 5, and a positioning seat 403 is fixedly connected to the bottom of the universal rotating seat 402. A connecting ball 401 is fixedly connected to the top of the pressing plate 4, and the connecting ball 401 is universally rotatable in the universal rotating seat 402 and the positioning seat 403.

[0053] In this embodiment, two guide rails 307 are fixedly connected to the outer side of the machine base 1, and the lifting material receiving plate 3 is slidably sleeved on the outer sides of the two guide rails 307. Support plates 503 are fixedly installed on the front and back sides of the top of the machine base 1, and the support plates 503 are fixedly connected to the bottom of the fixed frame 502, thereby fixing the fixed frame 502.

[0054] In this embodiment, when in use, raw material powder for pressing ceramic sheets is added into the feed hopper 201 to enter the material frame 2, and then the cylinder 7 is controlled to drive the bottom plate 6 to move upward, so that the top surface of the bottom plate 6 is flush with the top surface of the machine base 1, and then the electric push rod 202 is started to drive the material frame 2 to move horizontally. When the material frame 2 moves to the top of the pressing cavity, the cylinder 7 is started to drive the bottom plate 6 to move downward for a distance, so that the powder in the material frame 2 enters the pressing cavity, and then the electric push rod 202 is started to drive the material frame 2 to move right and reset, and then the cylinder 7 is controlled to drive the bottom plate 6 to move downward until it contacts with the support plate 23 to reset, and the hydraulic cylinder 501 is started to drive the mounting shell 5 to move downward, and the mounting shell 5 drives the pressing plate 4 to move downward, so that the pressing plate 4 enters the inside of the pressing cavity to press and shape the powder;

[0055] When the thickness of the powder in the pressing cavity is unevenly distributed, different positions on the bottom of the pressing plate 4 are subjected to different resistances, so that the pressing plate 4 deflects a small amount and pushes the push rod 504 upward by contacting with the push rod 504. The push rod 504 pushes the disc 505 upward, and the disc 505 drives the pressing plate 507 to move upward so that the pressing plate 507 presses the control button 508. After receiving the pressure, the control button 508 sends a control signal to the hydraulic cylinder 501 and the drive motor 19, and the hydraulic cylinder 501 retracts. After receiving the control signal, the control mounting shell 5 moves upward for a distance and then moves downward. After receiving the control signal, the driving motor 19 stops after running for a period of time. The driving motor 19 drives the driving gear 18 to rotate through its motor shaft. The driving gear 18 drives the rotating drum 9 to rotate by meshing with the driven gear 20. During the rotation process, the rotating drum 9 pushes the horizontal column 21 downward through the wedge-shaped protrusion 901, and drives the vertical rod 10 and the first impact rod 11 to move downward, and at the same time realizes the stretching of the connecting spring 22. After the rotating drum 9 rotates a certain angle, the wedge The arc-shaped protrusion 901 is out of contact with the cross column 21, so that the cross column 21 is reset under the action of the connecting spring 22, and drives the first impact rod 11 to reset. The first impact rod 11 impacts the bottom of the bottom plate 6 under the action of inertia, so that the bottom plate 6 vibrates up and down. At the same time, the rotating drum 9 drives the round shell 14 to rotate. The round shell 14 abuts against the connecting column 13 through the arc-shaped protrusion 1401 and drives the multiple second impact rods 12 to move back and forth intermittently under the action of the reset spring 16, and impacts the inner wall of the annular plate 8. The bottom plate 6 is made to vibrate in different horizontal directions. With the cooperation of the two vibrations, the raw material powder is rolled in the pressing cavity and gradually becomes flat. The mounting shell 5 moves upward for a distance and then moves downward to drive the pressing plate 4 to move downward to continue to press the powder. If the powder is still unevenly distributed, the above situation will be repeated. When the powder is evenly distributed, the pressure on different areas at the bottom of the pressing plate 4 is equal, and the pressing plate 4 will not deflect, so that it can move downward smoothly to press the powder.

[0056] After the pressing and molding, the hydraulic cylinder 501 is started to control the mounting shell 5 to reset, and then the cylinder 7 is controlled to drive the bottom plate 6 to move upward, so that the top surface of the bottom plate 6 is flush with the top surface of the machine base 1, so that the pressed ceramic piece can be ejected, and then the electric push rod 202 is started to drive the material frame 2 to move horizontally. The horizontal movement of the material frame 2 can push the ceramic piece onto the lifting receiving plate 3. When the material frame 2 moves to the top of the pressing cavity, the cylinder 7 is started to drive the bottom plate 6 to move downward for a distance, so that the powder in the material frame 2 enters the pressing cavity, and then the electric push rod 202 is started to drive the material frame 2 to move right and reset, and make The material frame 2 presses the touch button 3061, thereby controlling the stepper motor 306 to rotate a certain angle and drive the sprocket 304 to rotate, and the sprocket 304 drives the chain 305 to operate, and the chain 305 drives the insertion rod 302 to move downward through the side plate 303, and the insertion rod 302 drives the lifting material receiving plate 3 to drop a certain distance (the distance is the thickness of the ceramic sheet after pressing) by cooperating with the socket, so that the ceramic sheet pressed next time can be pushed to the top of the ceramic sheet formed this time when the material is received next time, so as to achieve stacking, and then start the hydraulic cylinder 501 to enter the next round of pressing work;

[0057] When enough ceramic sheets are stacked on the lifting receiving plate 3, the ceramic sheets can be removed, and the stepping motor 306 is independently controlled to operate so that the lifting receiving plate 3 moves to the initial position to facilitate receiving.

[0058] The above is a detailed introduction to a dry pressing molding device for preparing ceramic sheets provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A dry pressing molding device for preparing ceramic sheets, characterized in that: include: A machine base (1), wherein a pressing cavity is provided at the top of the machine base (1), a bottom plate (6) is provided in the pressing cavity, a ring plate (8) is fixedly installed at the bottom of the bottom plate (6), a rotating drum (9) is rotatably installed on the bottom inner wall of the pressing cavity, a vertical rod (10) is provided in the rotating drum (9), a first impact rod (11) is fixedly connected to the top of the vertical rod (10), a plurality of vertical plates (15) are slidably connected to the bottom inner wall of the pressing cavity, a second impact rod (12) is fixedly connected to the top of the vertical plate (15), a connecting column (13) is fixedly connected to the bottom of the second impact rod (12), a round shell (14) is fixedly sleeved on the top of the outer side of the rotating drum (9), an arc-shaped protrusion (1401) is integrally formed on the inner wall of the round shell (14), and when the round shell (14) rotates, the second impact rod (12) can be driven to intermittently move close to the vertical rod (10) through the contact between the arc-shaped protrusion (1401) and the connecting column (13); A pressing mechanism, the pressing mechanism comprising a fixedly connected pressing plate (4) and a fixed frame (502) fixedly connected to the top of the machine base (1), a plurality of hydraulic cylinders (501) fixedly connected to the bottom of the fixed frame (502), a same mounting shell (5) fixedly connected to the output ends of the plurality of hydraulic cylinders (501), the pressing plate (4) universally rotatably connected to the bottom of the mounting shell (5), a disc (505) and a plurality of push rods (504) slidably connected inside the mounting shell (5), the bottom ends of the plurality of push rods (504) all movably abut against the top of the pressing plate (4), a pressing plate (507) fixedly connected to the top of the disc (505), a control button (508) fixedly connected to the inner wall of the top of the mounting shell (5), and the control button (508) electrically connected to the hydraulic cylinder (501); A feeding mechanism, the feeding mechanism comprising a material frame (2) and an electric push rod (202), the bottom of the material frame (2) being open, and the top of the material frame (2) being connected to a feed hopper (201), the output end of the electric push rod (202) being fixedly connected to one side of the material frame (2), a mounting plate being fixedly mounted on one side of the electric push rod (202), the mounting plate being fixedly mounted on the top of the machine base (1), a plurality of guide frames (17) being fixedly mounted on the inner wall of the bottom of the pressing cavity, the vertical plates (15) being slidably sleeved on the outer sides of the corresponding guide frames (17), and the A return spring (16) is fixedly connected to one side of the vertical plate (15) away from the vertical rod (10), and the other end of the return spring (16) is fixedly connected to the corresponding guide frame (17). A driving motor (19) is fixedly installed on the bottom inner wall of the pressing cavity, and a driving gear (18) is fixedly connected to the output shaft of the driving motor (19). A driven gear (20) is fixedly sleeved on the outer side of the rotating drum (9), and the driving gear (18) is meshed with the driven gear (20). The control button (508) is electrically connected to the driving motor (19). When the powder is in the pressing cavity, When the thickness distribution in the cavity is uneven, different positions of the bottom of the pressing plate (4) are subjected to different resistances, so that the pressing plate (4) produces a small amount of deflection, and pushes the push rod (504) to move upward by contacting with the push rod (504), and the push rod (504) pushes the disc (505) to move upward, and the disc (505) drives the pressing plate (507) to move upward so that the pressing plate (507) presses the control button (508), and the control button (508) sends a control signal to the hydraulic cylinder (501) and the drive motor (19) after receiving the control signal, and the hydraulic cylinder (501) controls the control button (508) after receiving the control signal. The housing (5) moves upward for a certain distance and then moves downward. The driving motor (19) stops after it receives a control signal and runs for a certain period of time. The driving motor (19) drives the driving gear (18) to rotate through its motor shaft. The driving gear (18) drives the rotating drum (9) to rotate through meshing with the driven gear (20). The rotating drum (9) drives the circular housing (14) to rotate. The circular housing (14) drives the plurality of second impact rods (12) to intermittently reciprocate through the contact between the arc-shaped protrusion (1401) and the connecting column (13) under the action of the return spring (16), and thus impacts the inner wall of the annular plate (8).

2. A dry pressing molding device for preparing ceramic sheets according to claim 1, characterized in that: The outer side of the vertical rod (10) is fixedly connected to the same horizontal column (21); the bottom of the rotating drum (9) is integrally formed with a wedge-shaped protrusion (901); the wedge-shaped protrusion (901) is movably abutted against the outer side of the corresponding horizontal column (21); and the top of the horizontal column (21) is fixedly connected to a connecting spring (22); the bottom of the machine base (1) is provided with a plurality of circular grooves; the top of the connecting spring (22) is fixedly connected to the corresponding circular grooves; the bottom of the machine base (1) is fixedly connected to a plurality of vertical rods (10); and the horizontal column (21) is slidably sleeved on the outer side of the corresponding vertical rod (10).

3. The dry pressing molding equipment for preparing ceramic sheets according to claim 1, characterized in that: The machine also includes a material receiving mechanism, the material receiving mechanism including a mounting frame (301), a chain (305), a stepping motor (306) and a lifting material receiving plate (3), the lifting material receiving plate (3) being slidably connected to one side of the machine base (1), and the mounting frame (301) being fixedly connected to one side of the machine base (1), two sprocket wheels (304) being rotatably mounted on the front side of the mounting frame (301), the chain (305) being transmission-mounted on the outside of the two sprocket wheels (304), and the output end of the stepping motor (306) being fixedly connected to one of the chain wheels. The stepper motor (306) is fixedly connected to the rear side of the mounting frame (301), the outer side of the chain (305) is fixedly connected to the side plate (303), the inner side of the side plate (303) is fixedly connected to the insertion rod (302), the front side of the lifting material receiving plate (3) is provided with a socket, the insertion rod (302) is movably inserted into the socket, and a touch button (3061) is fixedly installed on the top of the machine base (1), and the touch button (3061) is electrically connected to the stepper motor (306).

4. The dry pressing molding equipment for preparing ceramic sheets according to claim 1, characterized in that: Two cylinders (7) are fixedly mounted on the inner wall of the bottom of the pressing cavity, and the output ends of the two cylinders (7) are fixedly connected to the bottom of the bottom plate (6).

5. The dry pressing molding equipment for preparing ceramic sheets according to claim 1, characterized in that: Support plates (23) are fixedly mounted on both inner walls of the pressing cavity, and the support plates (23) are movably abutted against the bottom of the bottom plate (6).

6. The dry pressing molding equipment for preparing ceramic sheets according to claim 1, characterized in that: The top of the disc (505) is fixedly connected to a plurality of positioning springs (506), the top ends of the plurality of positioning springs (506) are fixedly connected to the top inner wall of the mounting shell (5), the bottom of the mounting shell (5) is fixedly installed with a universal rotating seat (402), the bottom of the universal rotating seat (402) is fixedly connected to a positioning seat (403), the top of the pressing plate (4) is fixedly connected to a connecting ball (401), and the connecting ball (401) is universally rotatable in the universal rotating seat (402) and the positioning seat (403).

7. The dry pressing molding equipment for preparing ceramic sheets according to claim 3, characterized in that: Two guide rails (307) are fixedly connected to the outside of the machine base (1), and the lifting material receiving plate (3) is slidably sleeved on the outside of the two guide rails (307). Support plates (503) are fixedly installed on both the front and rear sides of the top of the machine base (1), and the support plates (503) are fixedly connected to the bottom of the fixed frame (502).

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