Material extrusion apparatus

Abstract

The application discloses a material extrusion equipment, relates to the field of extruders, and comprises a bottom plate and a barrel, four ends of the upper surface of the bottom plate are fixedly connected with supporting columns, the top ends of the supporting columns are fixedly connected with a top plate, the top plate is provided with an extrusion assembly for discharging slurry in the barrel, the extrusion assembly comprises a hydraulic cylinder fixedly connected to the upper surface of the top plate, and the hydraulic cylinder, an extrusion disc and an electromagnet are cooperatively arranged, in use, the barrel is placed directly below the hydraulic cylinder, then according to the size of the barrel, a cross frame is driven to rotate by a driving assembly, one of the fixed pipes is moved to be directly below the hydraulic cylinder, the extrusion disc matched with the size of the barrel is located directly above the barrel, then the hydraulic cylinder is started, the moving rod is pressed down, the electromagnet is magnetically connected with the moving rod at the same time, the extrusion disc is pressed into the barrel, and the slurry in the barrel is extruded, so that the problem that the extrusion disc is difficult to replace when the caliber of the barrel is different is avoided as much as possible, and the applicability of the equipment is improved.

Description

Technical Field

[0001] This application relates to the field of extruders, and more particularly to a material extrusion apparatus. Background Technology

[0002] In the process of slurry preparation, it is often encountered that the slurry viscosity and consistency are too high, the self-flowability is poor, or there is almost no self-flowability. In this case, it is difficult to use a pump to transfer or fill the material. At this time, a special pressing equipment is needed to solve this problem.

[0003] Most existing slurry extrusion equipment works by moving a slurry-filled cylinder under a press, then pressing a pressure plate into the cylinder to squeeze the slurry, which is then discharged from the outlet at the bottom of the cylinder. However, most pressure plates are fixed with bolts, making it difficult to replace the pressure plate when the cylinder diameter is different, which reduces the applicability of the equipment. Utility Model Content

[0004] To address the aforementioned problems, this application provides a material extrusion apparatus.

[0005] The material extrusion equipment provided in this application adopts the following technical solution:

[0006] A material extrusion device includes a base plate and a material barrel. Support columns are fixedly connected to the four ends of the upper surface of the base plate, and a top plate is fixedly connected to the top of each support column. An extrusion assembly for discharging slurry from the material barrel is provided on the top plate. The extrusion assembly includes a hydraulic cylinder fixedly connected to the upper surface of the top plate. A cross is provided below the top plate, and fixed tubes are fixedly connected to the four ends of the cross. A movable rod is slidably connected inside each fixed tube. Extrusion discs of different sizes are respectively installed at the bottom ends of the movable rods. The output end of the hydraulic cylinder passes through the top plate and is fixedly connected to an electromagnet that is attracted to and connected to the movable rod. A drive assembly for rotating the cross is provided on the top plate, and a clamping assembly for restricting the movement of the movable rod is provided inside the fixed tubes.

[0007] By adopting the above technical solution, during use, the material bucket is placed on the base plate so that it is directly below the hydraulic cylinder. Then, according to the size of the material bucket, the cross is rotated by the drive component to move one of the fixed tubes directly below the hydraulic cylinder, so that the extrusion plate that matches the size of the material bucket is directly above the material bucket. Then, the hydraulic cylinder is activated, and while pressing down the moving rod, the electromagnet is magnetically connected to the moving rod, so that the extrusion plate is pressed into the material bucket, squeezing out the slurry in the material bucket. This avoids the problem of difficulty in replacing the pressure plate when the diameter of the material cylinder is different, which would reduce the applicability of the equipment.

[0008] Preferably, the drive assembly includes a stepper motor fixedly connected to the upper surface of the top plate, and a rotating shaft fixedly connected to the output end of the stepper motor. The end of the rotating shaft away from the stepper motor passes through the top plate and is fixedly connected to the cross.

[0009] By adopting the above technical solution, when it is necessary to replace extrusion discs of different sizes, the stepper motor is started to drive the rotating shaft to rotate at an angle, so that multiple extrusion discs of different sizes can be moved directly below the hydraulic cylinder, and the hydraulic cylinder can press the appropriate extrusion disc into the material barrel.

[0010] Preferably, the clamping assembly includes a plurality of grooves formed in the inner wall of the fixed tube, each groove having a slider slidably disposed therein, a contact ball fixedly connected to one side wall of the slider, the contact ball abutting against the moving rod, and a spring fixedly connected to the side wall of the slider away from the contact ball, the end of the spring away from the slider being fixedly connected to the side wall of the groove.

[0011] By adopting the above technical solution, the sliding block is pushed by a spring, so that the contact ball and the moving rod are in contact, and the moving rod is stably set in the fixed tube, preventing the moving rod from slipping out of the fixed tube.

[0012] Preferably, a mounting plate is fixedly connected to the bottom of the material bucket, and casters are fixedly connected to the four ends of the lower surface of the mounting plate.

[0013] By adopting the above technical solution, the material bucket can be easily moved using casters.

[0014] Preferably, the upper surface of the base plate is fixedly connected with a plurality of annular arrays of electric telescopic rods, and the lower surface of the mounting plate is provided with a plurality of positioning holes adapted to the electric telescopic rods.

[0015] By adopting the above technical solution, after the mounting plate is moved to the bottom plate, the electric telescopic rod is activated and inserted into the positioning holes to position the mounting plate so that it is directly below the hydraulic cylinder, thus preventing the material bucket from moving.

[0016] Preferably, each of the extrusion discs has a sealing ring fixedly connected to its sidewall, and each of the extrusion discs has an exhaust pipe fixedly connected to its upper surface, with a solenoid valve installed on the exhaust pipe.

[0017] By adopting the above technical solution, the sealing between the extrusion disc and the inner wall of the barrel is improved by the sealing ring, preventing the slurry from overflowing from the periphery of the extrusion disc. At the same time, after extrusion is completed, the solenoid valve is opened to allow air to pass through the exhaust pipe, which facilitates the hydraulic cylinder to remove the extrusion disc from the barrel.

[0018] Preferably, a guide ramp is fixedly connected to one side wall of the base plate to facilitate moving the material bucket onto the base plate.

[0019] By adopting the above technical solution, the guide ramp prevents the casters from colliding with the side wall of the base plate, making it easier to move the casters to the base plate.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application utilizes the coordinated design of hydraulic cylinders, extrusion discs, and electromagnets. In use, the material bucket is placed on the base plate, positioned directly below the hydraulic cylinder. Then, depending on the size of the material bucket, the drive assembly rotates the cross-shaped mechanism, moving one of the fixed tubes directly below the hydraulic cylinder. This positions the extrusion disc, which is the appropriate size for the material bucket, directly above the bucket. The hydraulic cylinder is then activated, pressing down the moving rod while simultaneously magnetically connecting the electromagnet to the moving rod. This forces the extrusion disc into the material bucket, squeezing out the slurry. This design minimizes the difficulty of replacing the extrusion disc when the cylinder diameter is different, thus reducing the equipment's applicability.

[0022] 2. The sealing ring improves the sealing between the extrusion disc and the inner wall of the barrel, preventing the slurry from overflowing from the periphery of the extrusion disc. At the same time, after extrusion is completed, the solenoid valve is opened to allow air to pass through the exhaust pipe, making it easier for the hydraulic cylinder to remove the extrusion disc from the barrel. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a material extrusion device according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the internal structure of the fixed tube, representing a key embodiment of this application.

[0025] Figure 3 The embodiments of this application mainly embody Figure 1 A schematic diagram of the enlarged structure of region A in the middle;

[0026] Figure 4 This is a schematic diagram illustrating the positioning hole structure, which is the main feature of the embodiments of this application.

[0027] Figure 5 The embodiments of this application mainly embody Figure 2 A schematic diagram of the enlarged structure of region B in the middle.

[0028] Reference numerals: 1. Base plate; 2. Material bucket; 3. Support column; 4. Top plate; 5. Hydraulic cylinder; 6. Cross; 7. Fixing pipe; 8. Moving rod; 9. Extrusion plate; 10. Electromagnet; 11. Stepper motor; 12. Rotating shaft; 13. Groove; 14. Slider; 15. Abutment ball; 16. Spring; 17. Mounting plate; 18. Caster wheel; 19. Electric telescopic rod; 20. Positioning hole; 21. Sealing ring; 22. Exhaust pipe; 23. Solenoid valve; 24. Guide ramp. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0030] This application discloses a material extrusion device.

[0031] Reference Figure 1 , Figure 2 and Figure 3 A material extrusion device includes a base plate 1 and a material bucket 2. Support columns 3 are fixedly connected to the four ends of the upper surface of the base plate 1. A top plate 4 is fixedly connected to the top of the support columns 3. An extrusion assembly for discharging the slurry in the material bucket 2 is provided on the top plate 4. The extrusion assembly includes a hydraulic cylinder 5, a cross 6, a fixed tube 7, a moving rod 8, an extrusion disc 9, and an electromagnet 10.

[0032] Hydraulic cylinder 5 is fixedly connected to the upper surface of top plate 4. Cross 6 is set below top plate 4. Four fixed tubes 7 are provided and fixedly connected to the four ends of cross 6 respectively. Four moving rods 8 are provided and slidably set inside fixed tubes 7 respectively. Four extrusion plates 9 are provided and are all different in size. Extrusion plates 9 are fixedly connected to the bottom end of moving rods 8 and located below fixed tubes 7. The output end of hydraulic cylinder 5 passes through top plate 4 and is fixedly connected to electromagnet 10. Electromagnet 10 is attracted and connected to moving rod 8 respectively. Top plate 4 is provided with a drive assembly for driving cross 6 to rotate. Fixed tube 7 is provided with a clamping assembly for limiting the movement of moving rod 8.

[0033] Reference Figure 1 and Figure 2 The drive assembly includes a stepper motor 11 fixedly connected to the upper surface of the top plate 4. A rotating shaft 12 is fixedly connected to the output end of the stepper motor 11. The end of the rotating shaft 12 away from the stepper motor 11 passes through the top plate 4 and is fixedly connected to the cross 6. When it is necessary to replace the extrusion disc 9 of different sizes, the stepper motor 11 is started to drive the rotating shaft 12 to rotate at an angle, so that multiple extrusion discs 9 of different sizes can be moved directly below the hydraulic cylinder 5, so that the hydraulic cylinder 5 can press the matching extrusion disc 9 into the material barrel 2.

[0034] Reference Figure 2 and Figure 5 The clamping assembly includes multiple grooves 13 formed on the inner wall of the fixed tube 7. A slider 14 is slidably disposed in each groove 13. An abutment ball 15 is fixedly connected to one side wall of the slider 14. The abutment ball 15 abuts against the moving rod 8. A spring 16 is fixedly connected to the side wall of the slider 14 away from the abutment ball 15. The end of the spring 16 away from the slider 14 is fixedly connected to the side wall of the groove 13. The spring 16 pushes the slider 14, causing the abutment ball 15 to abut against the moving rod 8, thus stably setting the moving rod 8 in the fixed tube 7 and preventing the moving rod 8 from slipping out of the fixed tube 7.

[0035] Reference Figure 1 and Figure 4 The bottom of the material bucket 2 is fixedly connected to the mounting plate 17. The four ends of the lower surface of the mounting plate 17 are fixedly connected to the universal wheels 18. The bottom of the material bucket 2 is fixedly connected to the discharge pipe. The discharge pipe passes through the mounting plate 17 and is equipped with a control valve. The material bucket 2 can be moved easily through the universal wheels 18.

[0036] Reference Figure 1 and Figure 4 Multiple electric telescopic rods 19 in a circular array are fixedly connected to the upper surface of the base plate 1. Multiple positioning holes 20 adapted to the electric telescopic rods 19 are opened on the lower surface of the mounting plate 17. After the mounting plate 17 is moved onto the base plate 1, the electric telescopic rods 19 are activated and inserted into the positioning holes 20 respectively to position the mounting plate 17 so that the mounting plate 17 is directly below the hydraulic cylinder 5 to prevent the material bucket 2 from moving.

[0037] Reference Figure 1 and Figure 3 Each side wall of the extrusion disc 9 is fixedly connected with a sealing ring 21, and each upper surface of the extrusion disc 9 is fixedly connected with an exhaust pipe 22. A solenoid valve 23 is installed on the exhaust pipe 22. The sealing ring 21 improves the sealing between the extrusion disc 9 and the inner wall of the material barrel 2, preventing the slurry from overflowing from the periphery of the extrusion disc 9. At the same time, after extrusion is completed, the solenoid valve 23 is opened to allow air to pass through the exhaust pipe 22, which facilitates the hydraulic cylinder 5 to remove the extrusion disc 9 from the material barrel 2.

[0038] Reference Figure 1 A guide ramp 24 is fixedly connected to one side wall of the base plate 1 to facilitate moving the material bucket 2 onto the base plate 1. The guide ramp 24 prevents the caster wheel 18 from colliding with the side wall of the base plate 1 and facilitates moving the caster wheel 18 onto the base plate 1.

[0039] The implementation principle of a material extrusion device according to an embodiment of this application is as follows: In use, the material barrel 2 is placed on the base plate 1, so that the material barrel 2 is directly below the hydraulic cylinder 5. Then, according to the size of the material barrel 2, the stepper motor 11 drives the rotating shaft 12 to rotate at an angle, moving the extrusion plate 9, which is adapted to the size of the material barrel 2, to the top of the material barrel 2. Then, the hydraulic cylinder 5 is activated, pressing down the moving rod 8 while the electromagnet 10 is magnetically connected to the moving rod 8, pressing the extrusion plate 9 into the material barrel 2, so that the slurry in the material barrel 2 is extruded. At the same time, the spring 16 pushes the slider 14, so that the abutment ball 15 abuts against the moving rod 8, and the moving rod 8 is stably set in the fixed tube 7 to prevent the moving rod 8 from slipping out of the fixed tube 7. This avoids the problem of difficulty in replacing the pressure plate when the diameter of the material cylinder is different, which would reduce the applicability of the equipment.

[0040] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A material extrusion device, comprising a base plate (1) and a material barrel (2), wherein support columns (3) are fixedly connected to four ends of the upper surface of the base plate (1), and a top plate (4) is fixedly connected to the top of the support columns (3), and the top plate (4) is provided with an extrusion assembly for discharging slurry from the material barrel (2), characterized in that: The extrusion assembly includes a hydraulic cylinder (5) fixedly connected to the upper surface of the top plate (4). A cross (6) is provided below the top plate (4). Fixed tubes (7) are fixedly connected to all four ends of the cross (6). A moving rod (8) is slidably connected inside the fixed tube (7). Extrusion discs (9) of different sizes are respectively installed at the bottom end of the moving rod (8). The output end of the hydraulic cylinder (5) passes through the top plate (4) and is fixedly connected to an electromagnet (10) that is attracted to the moving rod (8). A drive assembly for driving the cross (6) to rotate is provided on the top plate (4). A clamping assembly for restricting the movement of the moving rod (8) is provided inside the fixed tube (7).

2. The material extrusion equipment according to claim 1, characterized in that: The drive assembly includes a stepper motor (11) fixedly connected to the upper surface of the top plate (4). The output end of the stepper motor (11) is fixedly connected to a rotating shaft (12). The end of the rotating shaft (12) away from the stepper motor (11) passes through the top plate (4) and is fixedly connected to the cross (6).

3. The material extrusion equipment according to claim 2, characterized in that: The clamping assembly includes multiple grooves (13) formed on the inner wall of the fixed tube (7). A slider (14) is slidably disposed in each groove (13). An abutment ball (15) is fixedly connected to one side wall of the slider (14). The abutment ball (15) abuts against the moving rod (8).

4. The material extrusion equipment according to claim 3, characterized in that: A spring (16) is fixedly connected to the side wall of the slider (14) away from the abutting ball (15), and the end of the spring (16) away from the slider (14) is fixedly connected to the side wall of the groove (13).

5. The material extrusion equipment according to claim 4, characterized in that: The bottom of the material bucket (2) is fixedly connected to an installation plate (17), and the four ends of the lower surface of the installation plate (17) are fixedly connected to casters (18).

6. The material extrusion equipment according to claim 5, characterized in that: The upper surface of the base plate (1) is fixedly connected with a plurality of electric telescopic rods (19) arranged in a ring, and the lower surface of the mounting plate (17) is provided with a plurality of positioning holes (20) that are adapted to the electric telescopic rods (19).

7. A material extrusion device according to claim 6, characterized in that: Each of the side walls of the extrusion disc (9) is fixedly connected with a sealing ring (21), and each of the upper surfaces of the extrusion disc (9) is fixedly connected with an exhaust pipe (22), and a solenoid valve (23) is installed on the exhaust pipe (22).

8. The material extrusion equipment according to claim 7, characterized in that: A guide ramp (24) is fixedly connected to one side wall of the base plate (1) to facilitate moving the material bucket (2) onto the base plate (1).

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