A metal cake press

Abstract

The application relates to the technical field of cake presses, in particular to a metal cake press which comprises a machine box, a centrifugal machine is arranged in the machine box, a feeding cone pipe is arranged at the top of the machine box, a discharging port is arranged at the bottom of the machine box, a vertical guide pipe is arranged on the machine box, the bottom end of the feeding cone pipe is communicated with the vertical inner side wall of the guide pipe, an extrusion column is coaxially and slidingly arranged on the guide pipe, a bearing plate is arranged on the machine box, a pipe changing frame is rotatably arranged on the bearing plate, an extrusion pipe is arranged on the pipe changing frame, a filter plate is arranged on the bearing plate below the guide pipe, a plurality of filter cone holes are arranged on the filter plate, the bottom of the bearing plate is provided with a liquid collecting cylinder which is hollow and has an open top, the bottom of the liquid collecting cylinder is communicated with the liquid inlet end of the centrifugal machine, a discharging port is arranged on the bearing plate, the discharging port is communicated with the discharging port, and a discharging plug plate is slidingly arranged on the bottom of the bearing plate. The application has the effect of reducing the content of small particle debris in cutting oil.

Description

Technical Field

[0001] This application relates to the field of biscuit press technology, and in particular to a metal biscuit press. Background Technology

[0002] In the process of metal cutting, cutting fluid is often used for cooling. Depending on the processing conditions, cutting fluid is divided into oil-based cutting fluid and water-based cutting fluid. Oil-based cutting fluid is also called cutting oil.

[0003] Because cutting produces a lot of chips, and the shape of the chips is not fixed, especially small chips, because the surface area to volume ratio of the chips is relatively large, a large amount of cutting fluid often adheres to the chips.

[0004] Currently, metal scraps are typically pressed into cakes using a patting machine. During this process, most of the cutting oil separates from the scraps. However, some cutting oil remains attached to the cake-shaped scraps, and the separated cutting oil contains a large number of tiny particles (particle size <10μm). These tiny particles are difficult to filter out using conventional filtration methods. Therefore, the cutting oil cannot be used directly. Although short-term use may not affect equipment safety, over long-term use, these tiny particles will accumulate in the cooling circulation system, eventually causing blockages and affecting the normal operation of the cutting equipment. This presents a drawback. Summary of the Invention

[0005] To address the problem of a large number of tiny particles and debris contained in cutting fluid, this application provides a metal pressing machine.

[0006] The metal biscuit press provided in this application adopts the following technical solution: A metal briquetting machine includes a casing containing a centrifuge. A feed cone is located at the top of the casing, and a discharge port is located at the bottom. A vertical guide tube is mounted on the casing, with the bottom end of the feed cone communicating with the vertical inner wall of the guide tube. An extrusion column is slidably mounted coaxially on the guide tube, with its outer circumferential wall abutting the inner circumferential wall of the guide tube. An extrusion component is mounted on the casing to drive the extrusion column to slide vertically. A support plate is mounted on the casing, and a tube changing frame is rotatably mounted on the support plate. An extrusion tube is mounted on the tube changing frame, with the inner diameter of the extrusion tube being the same as that of the guide tube, and the axis of the extrusion tube being parallel to the axis of the guide tube. The chassis is equipped with a pipe-changing component that drives the pipe-changing rack to rotate. A filter plate is installed on the support plate directly below the guide tube. The filter plate has several filter cone holes. When the extrusion tube is coaxial with the guide tube, the filter cone holes on the filter plate are all located inside the extrusion tube. A hollow liquid-collecting cylinder with an open top is installed at the bottom of the support plate. The filter plate is located within the open area of ​​the liquid-collecting cylinder. The bottom of the liquid-collecting cylinder is connected to the liquid inlet of the centrifuge. A discharge port is provided on the support plate and is connected to the discharge port. A discharge insert is slidably installed at the bottom of the support plate. The discharge insert is used to block the discharge port. A push plate component is provided on the support plate to drive the discharge insert to slide.

[0007] Optionally, the extrusion component includes a top partition plate disposed on the housing, and an extrusion cylinder electrically connected to the control system is disposed on the top partition plate, and the extrusion column is coaxially disposed on the piston rod of the extrusion cylinder.

[0008] By adopting the above technical solution, when the pipe changing frame rotates to make the extrusion tube and guide tube coaxial, the control system activates the extrusion cylinder. The piston rod of the extrusion cylinder retracts and drives the extrusion column upward, opening the connection between the feed cone tube and the guide tube. At this time, the metal scraps piled in the feed cone tube fall from the guide tube into the extrusion tube under the action of gravity. Then, the control system activates the extrusion cylinder again, the piston rod of the extrusion cylinder extends and drives the extrusion column downward. The descending extrusion column will compress the metal scraps in the extrusion tube, and the metal scraps are continuously compressed to form a metal scrap column. At this time, the cutting oil adhering to the metal scraps will flow into the liquid collection cylinder through the filter cone hole. Subsequently, the piston of the extrusion cylinder... The rod drives the extrusion column to reset, and the tube changing component drives the tube changing frame to rotate, thereby moving the extrusion tube carrying the metal shavings to the discharge plate at the discharge port. Finally, the push plate drives the discharge plate to slide open the discharge port, and the metal shavings fall out of the machine casing. At the same time, as the extrusion column slides into the extrusion tube, the air inside the extrusion tube is compressed and flows out through the filter cone hole, causing the cutting oil remaining in the gaps between the metal shavings to flow into the liquid collection cylinder. The cutting oil in the liquid collection cylinder eventually flows to the centrifuge, where the centrifuge separates the tiny particles of debris from the cutting oil, thus obtaining clean cutting oil. This ensures the quality and safety of the cutting oil in the cooling circulation system and improves the utilization rate of the cutting oil.

[0009] Optionally, the extrusion column is hollow inside, a partition plate is provided on the chassis, the guide tube is provided on the partition plate, an air pump electrically connected to the control system is provided on the partition plate, a hose is connected between the air outlet of the air pump and the top of the extrusion column, a one-way valve is provided at the bottom of the extrusion column, and a return air pipe is connected to the top of the liquid collection cylinder.

[0010] Optionally, a filter cylinder is connected to the return air pipe, and multiple filter layers are provided inside the filter cylinder.

[0011] By adopting the above technical solution, after the piston rod of the extrusion cylinder drives the extrusion column to extrude metal chips, the piston rod of the extrusion cylinder first retracts and drives the extrusion column to rise a certain distance. At this time, the bottom of the extrusion column is still inside the extrusion tube. The control system starts the air pump, which fills the extrusion column with a large amount of air through the hose. The air in the extrusion column will flow into the extrusion tube through the one-way valve, increasing the air pressure in the extrusion tube. The air will eventually flow into the liquid collection cylinder through the filter cone hole. Since there are still a lot of gaps between the metal chips after extrusion, the air filled by the air pump will continuously carry the cutting oil away from the metal chips as it flows through them. The air flowing into the liquid collection cylinder will pass through the return air pipe and then be filtered through multiple layers of filter in the filter cylinder before flowing back to the outside, thereby improving the recycling rate of cutting oil.

[0012] Optionally, the pipe changing component includes a pipe changing motor mounted on the partition plate, multiple extrusion pipes are mounted on the pipe changing frame, the pipe changing motor is electrically connected to the control system, and the pipe changing frame is mounted on the output shaft of the pipe changing motor.

[0013] By adopting the above technical solution, the control system starts the tube-changing motor, the output shaft of the tube-changing motor drives the tube-changing frame to rotate, and the rotating tube-changing frame drives the extrusion tube to rotate synchronously. Under the cyclical and coordinated action of multiple extrusion tubes, the extrusion efficiency of metal scrap is improved.

[0014] Optionally, the pusher plate includes a pusher cylinder disposed on the support plate, and a connecting rod is provided between the piston rod of the pusher cylinder and the discharge plate.

[0015] By adopting the above technical solution, the control system starts the push plate cylinder, the piston rod of the push plate cylinder extends, and the piston rod of the push plate cylinder drives the discharge plate to slide open the discharge port through the connecting rod. Under the action of gravity, the metal scraps squeezed in the extrusion tube will be discharged from the discharge port.

[0016] Optionally, the liquid collection cylinder is equipped with a cleaning cylinder electrically connected to the control system. The piston rod of the cleaning cylinder is equipped with a needle plate, and the needle plate is equipped with a plurality of pore-reducing needles. The filter cone holes correspond one-to-one with the pore-reducing needles.

[0017] By adopting the above technical solution, when the tube changing motor stops working, the control system starts the cleaning cylinder. The piston rod of the cleaning cylinder drives the pore-clearing needle to rise rapidly through the needle plate. The pore-clearing needle will quickly insert into the filter cone hole, thereby clearing the debris blocking the filter cone hole and ensuring the smooth progress of the subsequent metal scraping operation.

[0018] Optionally, a belt conveyor is provided at the discharge port of the chassis, with one end of the belt conveyor located directly below the discharge port of the bearing plate.

[0019] By adopting the above technical solution, the extruded metal scraps will be automatically transferred by a belt conveyor, which facilitates the subsequent processing of the metal scraps.

[0020] In summary, this application includes at least one of the following beneficial technical effects: When the pipe changing frame rotates, making the extrusion tube and guide tube coaxial, the control system activates the extrusion cylinder. The piston rod of the extrusion cylinder retracts, causing the extrusion column to rise. The connection between the feed cone tube and the guide tube is opened. At this time, the metal scraps piled in the feed cone tube fall from the guide tube into the extrusion tube under the action of gravity. Then, the control system activates the extrusion cylinder again. The piston rod of the extrusion cylinder extends, causing the extrusion column to descend. The descending extrusion column compresses the metal scraps in the extrusion tube, continuously compressing and forming a metal scrap column. At this time, the cutting oil adhering to the metal scraps flows into the liquid collection cylinder through the filter cone hole. Subsequently, the piston rod of the extrusion cylinder drives the extrusion... The column resets, and the tube changing component drives the tube changing frame to rotate, thereby moving the extrusion tube carrying the metal shavings to the discharge plate at the discharge port. Finally, the push plate drives the discharge plate to slide open the discharge port, and the metal shavings fall out of the machine casing. At the same time, as the extrusion column slides into the extrusion tube, the air inside the extrusion tube is compressed and flows out through the filter cone hole, causing the cutting oil remaining in the gaps between the metal shavings to flow into the liquid collection cylinder. The cutting oil in the liquid collection cylinder will eventually flow to the centrifuge, where the centrifuge separates the tiny particles of debris from the cutting oil, thus obtaining clean cutting oil. This ensures the quality and safety of the cutting oil in the cooling circulation system and improves the utilization rate of the cutting oil. After the piston rod of the extrusion cylinder drives the extrusion column to extrude metal chips, the piston rod of the extrusion cylinder first retracts and drives the extrusion column to rise a certain distance. At this time, the bottom of the extrusion column is still inside the extrusion tube. The control system starts the air pump, which fills the extrusion column with a large amount of air through the hose. The air in the extrusion column will flow into the extrusion tube through the one-way valve, which will increase the air pressure in the extrusion tube. The air will eventually flow into the liquid collection cylinder through the filter cone hole. Since there are still a lot of gaps between the metal chips after extrusion, the air filled by the air pump will continuously carry the cutting oil away from the metal chips as it flows through them. The air flowing into the liquid collection cylinder will pass through the return air pipe and then be filtered through multiple layers of filter in the filter cylinder before flowing back to the outside, thereby improving the recycling rate of cutting oil. When the tube-changing motor stops working, the control system starts the cleaning cylinder. The piston rod of the cleaning cylinder drives the pore-clearing needle to rise rapidly through the needle plate. The pore-clearing needle will quickly insert into the filter cone hole, thereby clearing the debris blocking the filter cone hole and ensuring the smooth progress of the subsequent metal shavings extrusion work. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0022] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the feed cone, the extrusion cylinder, and the extrusion tube in the embodiments of this application.

[0023] Figure 3 This is a cross-sectional view used in the embodiments of this application to illustrate the positional relationship between the filter plate, the extrusion column and the air pump.

[0024] Explanation of reference numerals in the attached diagram: 1. Chassis; 2. Centrifuge; 3. Feed cone tube; 4. Discharge port; 5. Guide tube; 6. Extrusion column; 7. Extrusion component; 71. Top partition plate; 72. Extrusion cylinder; 8. Bearing plate; 9. Tube changing rack; 10. Extrusion tube; 11. Tube changing motor; 12. Filter plate; 13. Filter cone hole; 14. Liquid collection cylinder; 15. Discharge port; 16. Discharge insert plate; 17. Push plate component; 171. Push plate cylinder; 172. Connecting rod; 18. Middle partition plate; 19. Air pump; 20. Hose; 21. One-way valve; 22. Return air pipe; 23. Filter cylinder; 24. Filter layer; 25. Hole cleaning cylinder; 26. Needle plate; 27. Hole clearing needle; 28. Belt conveyor; 29. ​​Rubber ring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0026] This application discloses a metal biscuit press.

[0027] Reference Figure 1 , Figure 2 and Figure 3 A metal briquetting machine includes a casing 1, a centrifuge 2 arranged inside the casing 1, the centrifuge 2 can be a disc high-speed centrifuge 2 in the prior art, a feed cone tube 3 is bolted to the top of the casing 1, and a discharge port 4 is opened at the bottom of the casing 1.

[0028] Reference Figure 1 , Figure 2 and Figure 3 The machine housing 1 is provided with a vertical guide tube 5. The bottom end of the feed cone tube 3 is connected to the vertical inner wall of the guide tube 5. A hollow extrusion column 6 is slidably passed through the guide tube 5.

[0029] Reference Figure 2 and Figure 3 The length of the extrusion column 6 is greater than the length of the guide tube 5. The outer circumferential wall of the extrusion column 6 is attached to the inner circumferential wall of the guide tube 5. A rubber ring 29 is fitted on the extrusion column 6 and abuts against the inner circumferential wall of the guide tube 5.

[0030] Reference Figure 2 The extrusion component 7, which drives the extrusion column 6 to slide vertically, is arranged on the casing 1.

[0031] Reference Figure 2 and Figure 3The extrusion component 7 includes a top partition 71 welded inside the housing 1, an extrusion cylinder 72 electrically connected to the control system is bolted to the top partition 71, an extrusion column 6 is coaxially bolted to the piston rod of the extrusion cylinder 72, a middle partition 18 is welded to the housing 1, and a guide tube 5 is bolted to the middle partition 18.

[0032] Reference Figure 2 and Figure 3 An air pump 19, which is electrically connected to the control system, is bolted to the partition plate 18. A hose 20 is connected between the air outlet of the air pump 19 and the top of the extrusion column 6. A one-way valve 21 is welded to the bottom of the extrusion column 6. A return air pipe 22 is connected to the top of the liquid collection cylinder 14. A filter cylinder 23 is connected to the return air pipe 22. The filter cylinder 23 is filled with multiple layers of filter 24.

[0033] Reference Figure 2 and Figure 3 A bearing plate 8 is welded on the casing 1. A pipe changing rack 9 is rotatably connected to the bearing plate 8. Multiple extrusion tubes 10 are bolted to the pipe changing rack 9. The inner diameter of the extrusion tube 10 is the same as the inner diameter of the guide tube 5. The axis of the extrusion tube 10 is parallel to the axis of the guide tube 5. A pipe changing component that drives the pipe changing rack 9 to rotate is arranged on the casing 1.

[0034] Reference Figure 2 and Figure 3 The pipe changing fitting includes a pipe changing motor 11 bolted to the middle partition 18, the pipe changing motor 11 being electrically connected to the control system, and the pipe changing rack 9 being bolted to the output shaft of the pipe changing motor 11.

[0035] Reference Figure 2 and Figure 3 A filter plate 12 is embedded on the support plate 8 directly below the guide tube 5. The top of the filter plate 12 is flush with the top of the support plate 8. Several filter cone holes 13 are opened on the filter plate 12. The diameter of the filter cone holes 13 gradually increases from top to bottom.

[0036] Reference Figure 2 and Figure 3 When the extrusion tube 10 and the guide tube 5 are coaxial, the filter cone holes 13 on the filter plate 12 are all located inside the extrusion tube 10. The bottom of the support plate 8 is bolted with a hollow liquid collection cylinder 14 with an open top. The filter plate 12 is located within the open area of ​​the liquid collection cylinder 14. The bottom of the liquid collection cylinder 14 is connected to the liquid inlet end of the centrifuge 2.

[0037] The control system starts the tube-changing motor 11. The output shaft of the tube-changing motor 11 drives the tube-changing frame 9 to rotate, so that one of the extrusion tubes 10 on the tube-changing frame 9 is coaxial with the guide tube 5. Then, the control system starts the extrusion cylinder 72. The piston rod of the extrusion cylinder 72 retracts and drives the extrusion column 6 to rise a certain distance, so that the connection between the feed cone tube 3 and the guide tube 5 is opened.

[0038] The metal scraps pre-stacked in the feed cone tube 3 will fall from the guide tube 5 into the extrusion tube 10 under the action of gravity. The metal scraps will accumulate on the filter plate 12. Then, the control system will start the extrusion cylinder 72 again. The piston rod of the extrusion cylinder 72 extends and drives the extrusion column 6 to descend. The descending extrusion column 6 will press the metal scraps in the extrusion tube 10. During this process, the extrusion column 6 will gradually block the connection between the feed cone tube 3 and the guide tube 5.

[0039] Loose metal shavings are continuously compressed and compacted to form a metal shaving column. At this time, the cutting oil attached to the metal shavings flows into the liquid collection cylinder 14 through the filter cone hole 13. Subsequently, the piston rod of the extrusion cylinder 72 drives the extrusion column 6 to rise a certain distance. At this time, the bottom of the extrusion column 6 is still inside the extrusion tube 10.

[0040] The control system starts the air pump 19, which fills the extrusion column 6 with a large amount of air through the hose 20. The air pressure in the extrusion column 6 increases continuously. The increasing air pressure will open the one-way valve 21, and the air with a certain pressure will flow into the extrusion tube 10 through the one-way valve 21, thereby increasing the air pressure in the extrusion tube 10.

[0041] Because there are still a lot of gaps inside the metal debris column formed after the metal debris is squeezed, when air passes through the metal debris column, the fast-flowing air will continuously carry away the cutting oil on the metal debris. The cutting oil will flow into the liquid collection cylinder 14 through the filter cone hole 13 with the air. The cutting oil will condense on the pore needle 27, and the air flowing into the liquid collection cylinder 14 will pass through the return air pipe 22.

[0042] After being filtered through multiple layers of filter 24 in filter cartridge 23, the cutting oil flows back into the external environment. The cutting oil in liquid collection cylinder 14 eventually flows to centrifuge 2, where the centrifuge 2 separates the tiny particles and debris in the cutting oil, thus obtaining clean cutting oil. The clean cutting oil will re-enter the cooling circulation system. Subsequently, air pump 19 stops working, and the piston rod of extrusion cylinder 72 drives extrusion column 6 to rise and reset.

[0043] Reference Figure 2 and Figure 3 A cleaning cylinder 25, which is electrically connected to the control system, is bolted to the liquid collection cylinder 14. A needle plate 26 is bolted to the piston rod of the cleaning cylinder 25. Several pore-reducing needles 27 are welded on the needle plate 26. The filter cone hole 13 corresponds one-to-one with the pore-reducing needle 27.

[0044] Reference Figure 1 , Figure 2 and Figure 3The bearing plate 8 has a discharge port 15. A belt conveyor 28 is arranged at the discharge port 4 of the machine box 1. One end of the belt conveyor 28 is located directly below the discharge port 15 of the bearing plate 8. The discharge port 15 is connected to the discharge port 4. A discharge plate 16 is slidably arranged at the bottom of the bearing plate 8. The discharge plate 16 is used to block the discharge port 15. A push plate 17 is arranged on the bearing plate 8 to drive the discharge plate 16 to slide.

[0045] Reference Figure 3 The push plate component 17 includes a push plate cylinder 171 bolted to the bearing plate 8, and a connecting rod 172 is bolted between the piston rod of the push plate cylinder 171 and the discharge insert plate 16.

[0046] The output shaft of the tube-changing motor 11 drives the tube-changing frame 9 to rotate again, causing the extrusion column 6 to move the metal fragments formed after extrusion to the discharge port 15. The control system starts the push plate cylinder 171. The piston rod of the push plate cylinder 171 extends and drives the discharge plate 16 to slide open the discharge port 15 through the connecting rod 172. The metal fragments in the extrusion column 6 will fall from the discharge port 15 onto the belt conveyor 28 and be transported to the next processing station by the belt conveyor 28.

[0047] The implementation principle of a metal briquette machine according to an embodiment of this application is as follows: the control system starts the tube changing motor 11, the output shaft of the tube changing motor 11 drives the tube changing frame 9 to rotate, so that one of the extrusion tubes 10 on the tube changing frame 9 is coaxial with the guide tube 5. Subsequently, the control system starts the extrusion cylinder 72, the piston rod of the extrusion cylinder 72 retracts and drives the extrusion column 6 to rise a certain distance, so that the connection between the feed cone tube 3 and the guide tube 5 is opened.

[0048] The metal scraps pre-stacked in the feed cone tube 3 will fall from the guide tube 5 into the extrusion tube 10 under the action of gravity. The metal scraps will accumulate on the filter plate 12. Then, the control system will start the extrusion cylinder 72 again. The piston rod of the extrusion cylinder 72 extends and drives the extrusion column 6 to descend. The descending extrusion column 6 will press the metal scraps in the extrusion tube 10. During this process, the extrusion column 6 will gradually block the connection between the feed cone tube 3 and the guide tube 5.

[0049] Loose metal shavings are continuously compressed and compacted to form a metal shaving column. At this time, the cutting oil attached to the metal shavings flows into the liquid collection cylinder 14 through the filter cone hole 13. Subsequently, the piston rod of the extrusion cylinder 72 drives the extrusion column 6 to rise a certain distance. At this time, the bottom of the extrusion column 6 is still inside the extrusion tube 10.

[0050] The control system starts the air pump 19, which fills the extrusion column 6 with a large amount of air through the hose 20. The air pressure in the extrusion column 6 increases continuously. The increasing air pressure will open the one-way valve 21, and the air with a certain pressure will flow into the extrusion tube 10 through the one-way valve 21, thereby increasing the air pressure in the extrusion tube 10.

[0051] Because there are still a lot of gaps inside the metal debris column formed after the metal debris is squeezed, when air passes through the metal debris column, the fast-flowing air will continuously carry away the cutting oil on the metal debris. The cutting oil will flow into the liquid collection cylinder 14 through the filter cone hole 13 with the air. The cutting oil will condense on the pore needle 27, and the air flowing into the liquid collection cylinder 14 will pass through the return air pipe 22.

[0052] After being filtered through multiple layers of filter 24 in filter cartridge 23, the cutting oil flows back into the external environment. The cutting oil in liquid collection cylinder 14 eventually flows to centrifuge 2, where the centrifuge 2 separates the tiny particles and debris in the cutting oil, thus obtaining clean cutting oil. The clean cutting oil will re-enter the cooling circulation system. Subsequently, air pump 19 stops working, and the piston rod of extrusion cylinder 72 drives extrusion column 6 to rise and reset.

[0053] The output shaft of the tube-changing motor 11 drives the tube-changing frame 9 to rotate again, causing the extrusion column 6 to move the metal fragments formed after extrusion to the discharge port 15. The control system starts the push plate cylinder 171. The piston rod of the push plate cylinder 171 extends and drives the discharge plate 16 to slide open the discharge port 15 through the connecting rod 172. The metal fragments in the extrusion column 6 will fall from the discharge port 15 onto the belt conveyor 28 and be transported to the next processing station by the belt conveyor 28.

[0054] 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 metal briquetting machine, comprising a casing (1), a centrifuge (2) disposed inside the casing (1), a feed cone (3) disposed at the top of the casing (1), and a discharge port (4) disposed at the bottom of the casing (1), characterized in that: The housing (1) is provided with a vertical guide tube (5). The bottom end of the feed cone tube (3) is connected to the vertical inner wall of the guide tube (5). An extrusion column (6) is slidably passed through the guide tube (5) on the coaxial side. The outer circumferential wall of the extrusion column (6) is attached to the inner circumferential wall of the guide tube (5). The housing (1) is provided with an extrusion component (7) that drives the extrusion column (6) to slide vertically. The housing (1) is provided with a bearing. A plate (8) is provided, on which a tube changing rack (9) is rotatably mounted. A squeezing tube (10) is mounted on the tube changing rack (9). The inner diameter of the squeezing tube (10) is the same as that of the guide tube (5). The axis of the squeezing tube (10) is parallel to the axis of the guide tube (5). A tube changing component for driving the tube changing rack (9) to rotate is provided on the housing (1). A filter plate (12) is provided on the plate (8) directly below the guide tube (5). A plurality of filter cone holes (13) are provided on the filter plate (12). When the squeezing tube (10) and the guide tube (5) are coaxial, the filter cone holes (13) on the filter plate (12) are all located inside the squeezing tube (10). A hollow liquid collection cylinder (14) with an open top is provided at the bottom of the plate (8). The filter plate (12) is located within the open area of ​​the liquid collection cylinder (14). The bottom of the liquid collection cylinder (14) is connected to the liquid inlet of the centrifuge (2). A discharge port (15) is provided on the support plate (8). The discharge port (15) is connected to the discharge port (4). A discharge plate (16) is slidably provided on the bottom of the support plate (8). The discharge plate (16) is used to block the discharge port (15). A push plate (17) is provided on the support plate (8) to drive the discharge plate (16) to slide.

2. The metal biscuit press according to claim 1, characterized in that: The extrusion component (7) includes a top partition (71) disposed on the housing (1), and an extrusion cylinder (72) electrically connected to the control system is disposed on the top partition (71). The extrusion column (6) is coaxially disposed on the piston rod of the extrusion cylinder (72).

3. A metal biscuit press according to claim 2, characterized in that: The extrusion column (6) is hollow inside. A partition plate (18) is provided on the housing (1). The guide tube (5) is provided on the partition plate (18). An air pump (19) electrically connected to the control system is provided on the partition plate (18). A hose (20) is connected between the air outlet of the air pump (19) and the top of the extrusion column (6). A one-way valve (21) is provided at the bottom of the extrusion column (6). A return air pipe (22) is connected to the top of the liquid collection cylinder (14).

4. A metal biscuit press according to claim 3, characterized in that: The return air pipe (22) is connected to a filter cylinder (23), and the filter cylinder (23) is provided with multiple filter layers (24).

5. A metal patty press according to claim 3, characterized in that: The pipe changing component includes a pipe changing motor (11) mounted on the partition plate (18), and multiple extrusion pipes (10) are mounted on the pipe changing frame (9). The pipe changing motor (11) is electrically connected to the control system, and the pipe changing frame (9) is mounted on the output shaft of the pipe changing motor (11).

6. A metal biscuit press according to claim 5, characterized in that: The push plate component (17) includes a push plate cylinder (171) disposed on the bearing plate (8), and a connecting rod (172) is disposed between the piston rod of the push plate cylinder (171) and the discharge insert plate (16).

7. A metal biscuit press according to claim 1, characterized in that: The liquid collection cylinder (14) is equipped with a cleaning cylinder (25) electrically connected to the control system. The piston rod of the cleaning cylinder (25) is equipped with a needle plate (26). The needle plate (26) is equipped with a plurality of pore-reducing needles (27). The filter cone hole (13) corresponds one-to-one with the pore-reducing needles (27).

8. A metal patty press according to claim 1, characterized in that: A belt conveyor (28) is provided at the discharge port (4) of the chassis (1), and one end of the belt conveyor (28) is located directly below the discharge port (15) of the bearing plate (8).

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