Low-temperature cold oil pressing system and use method thereof

Abstract

The invention discloses a low-temperature cold oil pressing system and a using method thereof, and relates to the technical field of vegetable fat pressing, the low-temperature cold oil pressing system comprises a filter plate fixedly mounted in a machine body, and further comprises a cold pressing part, a cold oil pressing part and a cold oil pressing part, and the cold pressing part is matched with the filter plate for low-temperature cold oil pressing treatment; the residue stacking part is used for carrying out stacking treatment on the squeezed oil residues; the residue removing part is used for discharging the oil residues stacked by the residue stacking part out of the machine body; the method further comprises the following steps that S1, to-be-squeezed raw materials are put into the machine body through the feeding opening and fall onto the filter plate, and feeding is stopped after a certain amount of raw materials are put into the machine body. The oil press has the advantages that raw materials can be sequentially and effectively subjected to linear pressing and grinding pressing, the oil yield is guaranteed, the situation that the cold pressing effect is affected due to temperature rise caused by improper oil pressing operation is avoided, meanwhile, oil residues can be automatically scraped, accumulated, sucked and discharged after oil pressing, manual residue removal is not needed, the residue removal effect is good, and the oil press is safe and reliable. And the overall production efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of vegetable oil pressing, and in particular to a low-temperature cold-pressing oil system and a use method thereof. Background Art

[0002] Low-temperature cold-pressed oil is a type of edible oil obtained by pressing at a relatively low temperature (usually between 40-60°C), which can retain the nutrients and natural flavor of the oil to the greatest extent. Low-temperature cold pressing is generally processed using a screw press or a hydraulic press.

[0003] However, the existing simple press does not have an automatic slag removal function. After one oil pressing is completed, the staff needs to disassemble it and manually remove the slag. Since the pressure required for oil pressing is relatively high, the raw materials will form a compact cake after oil pressing, which makes slag removal difficult and requires a long time to process, resulting in reduced production efficiency. Therefore, it is necessary to design a low-temperature cold-pressed oil system and its use method. Summary of the invention

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

[0005] A low-temperature cold-pressing oil system and a method of using the same, comprising a filter plate fixedly mounted in a machine body, and further comprising:

[0006] The cold pressing part cooperates with the filter plate to process low-temperature cold pressed oil. The cold pressing part includes a driving assembly and a pressing plate sealed in the machine body. The driving assembly includes a fixing column fixedly installed on the top of the pressing plate. A lifting screw connected to the fixing column by thread is rotatably installed on the top of the machine body. Two slidable guide rods are installed on the side wall of the fixing column.

[0007] The slag stacking part is used to stack the oil residue after pressing, and the slag stacking part includes a scraper slidably mounted on the bottom of the pressing plate, and a retracting assembly matched with the scraper is installed in the slag stacking part, and the retracting assembly includes a moving plate slidably mounted in the pressing plate, and a control mechanism matched with the moving plate is installed between the pressing plate and the machine body;

[0008] The slag removing part is used to discharge the oil residue accumulated in the slag stacking part out of the machine body. The slag stacking part includes a slag removing seat fixedly installed on the side wall of the machine body. An annular groove is provided on the inner wall of the machine body, and a sealing ring is rotatably installed in the annular groove. A discharge port is provided on the sealing ring. A one-way suction pipe is fixedly connected between the slag removing seat and the annular groove. A transmission assembly matching with the slag removing seat and the sealing ring is installed on the machine body.

[0009] Furthermore, two guide grooves slidably matched with corresponding guide rods are provided on the inner wall of the machine body, and an annular groove communicating with the bottoms of the two guide grooves is provided on the inner wall of the machine body.

[0010] Furthermore, a telescopic groove is opened on the side wall of the fixed column, a telescopic block slidingly matched with the telescopic groove is fixedly installed on the side wall of the guide rod, and a spring is installed between the telescopic block and the telescopic groove, and a fixed rod slidingly matched with the telescopic block is fixedly installed in the telescopic groove.

[0011] Furthermore, a connecting plate is fixedly installed on the bottom of the movable plate, and a fixed sleeve is fixedly installed on the bottom of the connecting plate, a round rod is fixedly installed on the side wall of the scraper, and a telescopic sleeve that slides with the fixed sleeve is fixedly installed on the top of the round rod, a compression spring is installed between the connecting plate and the round rod, two sliding grooves are provided on the inner wall of the fixed sleeve, and two sliding blocks that slide with the corresponding sliding grooves are fixedly installed on the side wall of the telescopic sleeve.

[0012] Furthermore, a mounting cavity which is slidably matched with the movable plate is provided in the pressing plate, a receiving groove which is slidably matched with the scraper is provided at the bottom of the pressing plate, a round hole which is slidably matched with the round rod is provided on the side wall of the receiving groove, and the round hole is communicated with the mounting cavity, and the control mechanism includes a fixed gear ring fixedly installed at the bottom of the annular groove, a screw rod is rotatably installed on the pressing plate, and a fixed gear which matches the fixed gear ring is fixedly installed on the top of the screw rod, and one end of the screw rod located in the mounting cavity is threadedly connected to the movable plate.

[0013] Furthermore, a threaded rod is rotatably installed on the slag removal seat, and one end of the threaded rod located in the slag removal seat is threadedly connected to a piston plate that cooperates with the slag removal seat for sliding sealing. A discharge groove is provided at the bottom of the slag removal seat, and a sealing plate is sealed in the discharge groove. An air hole is provided at the top of the slag removal seat, and a one-way slag discharge port is provided on the sealing plate.

[0014] Furthermore, the transmission assembly includes a rotating shaft rotatably mounted on the body, a belt transmission structure 1 is installed between the rotating shaft and the lifting screw, a fixed plate is fixedly mounted on the side wall of the body, and a transmission rod is rotatably mounted on the fixed plate, a belt transmission structure 2 is installed between the transmission rod and the threaded rod, a connecting gear is fixedly mounted on the bottom of the transmission rod, an arc-shaped rack meshing with the connecting gear is fixedly mounted on the outer wall of the sealing ring, an arc-shaped groove matching the arc-shaped rack is opened on the side wall of the body, and a reciprocating mechanism is installed between the rotating shaft and the transmission rod.

[0015] Furthermore, the reciprocating mechanism includes an incomplete gear rotatably mounted on the rotating shaft through a one-way bearing, a transmission gear matching the incomplete gear is fixedly mounted on the top of the transmission rod, and a torsion spring is installed between the fixed plate and the transmission gear.

[0016] Furthermore, a fixing frame is fixedly installed on the top of the machine body, and a servo motor is fixedly installed on the top of the fixing frame, and the output end of the servo motor is fixedly connected to the top of the lifting screw, and a feeding hopper is fixedly installed on the side wall of the machine body, and the connecting end of the feeding hopper and the machine body is located between the top of the sealing ring and the bottom of the pressing plate.

[0017] A method for using a low-temperature cold-pressed oil system comprises the above-mentioned low-temperature cold-pressed oil system, and further comprises the following steps:

[0018] S1: The raw material to be squeezed is fed into the machine body through the feeding port so that it falls on the filter plate. After a certain amount of material is fed, the feeding is stopped and the power supply of the servo motor is turned on to start forward rotation;

[0019] S2: During the forward rotation of the servo motor, the lifting screw is driven to rotate forward. At this time, due to the cooperation between the guide rod and the guide groove, the moving direction of the fixed column is limited. Therefore, during the rotation of the lifting screw, the fixed column drives the pressing plate to move downward toward the filter plate to press the raw materials on the filter plate.

[0020] S3: When the pressing plate approaches the filter plate, the existence of the raw material will exert a reverse force on the pressing plate, so the telescopic block will overcome the elastic force of the spring and move up in the telescopic groove. At this time, the spring is compressed to store energy. As the pressing progresses, the oil in the raw material is squeezed out, so the volume of the raw material will decrease. At this time, the elastic force of the spring will cause the guide rod to drive the pressing plate to continue to move down a certain distance, so that it continues to exert effective pressure on the raw material;

[0021] S4: When the guide rod enters the annular groove from the guide groove, the reaction force on the pressing plate exerts resistance on its downward movement. At this time, the continuous rotation of the lifting screw will drive the fixed column to rotate together, so the pressing plate will rotate relative to the filter plate at this time. Since the spring has stored energy before, the pressing plate can also apply pressure to the original during the rotation process, thereby completing the grinding and pressing process and improving the oil yield of the raw materials;

[0022] S5: After the guide rod enters the annular groove, the fixed gear on the pressing plate also enters the annular groove and meshes with the fixed gear ring. When the pressing plate rotates, the cooperation between the fixed gear and the fixed gear ring causes the screw to start rotating, driving the movable plate to move downward in the installation cavity. However, since the pressing plate is in the process of squeezing the raw material at this time, the gap between the bottom of the pressing plate and the filter plate will be filled with raw materials. Then, when the movable plate moves downward, the scraper cannot pop out, so the compression spring between the round rod and the connecting plate is compressed and stores energy.

[0023] S6: After the oil pressing is completed, the servo motor rotates in the opposite direction. At this time, the cooperation between the lifting screw and the fixed column causes the pressing plate to rotate first and then move upward. At the same time, the elastic force of the compression spring causes the scraper to pop out of the receiving groove for a certain distance. In this process, the oil residue after pressing can be scraped and accumulated as the pressing plate rotates.

[0024] S7: When the servo motor rotates in the reverse direction, the belt transmission structure 1 drives the rotating shaft to rotate in the reverse direction at the same time. At this time, the one-way bearing is in a locked state, and the incomplete gear rotates in the reverse direction at the same time. Through the meshing with the transmission gear, the transmission rod is intermittently driven to rotate in the forward direction. When the transmission rod rotates in the forward direction, the belt transmission structure 2 drives the threaded rod to rotate in the forward direction, so that the piston plate moves up in the slag removal seat. At this time, negative pressure is generated at the one-way suction pipe, and the negative pressure gradually increases as the piston plate moves up.

[0025] S8: When the transmission rod rotates forward, it can also drive the sealing ring to rotate in the annular groove in the opposite direction through the cooperation of the connecting gear and the arc-shaped rack. At this time, its upper discharge port will approach the one-way suction pipe as it rotates. When the positions of the two are aligned, the oil residue accumulated on the filter plate can be sucked into the residue removal seat under the action of negative pressure;

[0026] S9: When the incomplete gear is separated from the transmission gear, the elastic force of the torsion spring causes the transmission rod to rotate in the opposite direction to reset. At this time, the sealing ring rotates forward to reset, and the threaded rod rotates in the opposite direction at the same time, causing the piston plate to move downward in the slag removal seat, and the oil residue sucked into it is discharged through the one-way slag discharge port on the sealing plate, thereby achieving the effect of automatically removing the oil residue.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1: The low-temperature cold pressing oil system has the advantages of high oil yield and stable cold pressing effect. Specifically, through the cooperation of the cold pressing part, telescopic groove, telescopic block and spring, the pressing plate can first press the raw material linearly and store energy in the process. After the linear pressing is completed, the raw material is effectively ground and pressed to ensure the oil pressing effect, while avoiding the problem of long-term grinding of the raw material causing temperature increase affecting the cold pressing effect.

[0029] 2: The low-temperature cold-pressing oil system has the advantage of automatic slag removal after the oil pressing is completed, which can effectively improve the overall production efficiency. Specifically, through the design of the slag removal part, during the resetting process of the pressing plate after the oil pressing process is completed, the operation of the transmission component can be used to drive the sealing ring and the piston plate to move at the same time, and the oil residue in the machine body can be automatically sucked into the slag removal seat, without manual slag removal.

[0030] 3: The low-temperature cold-pressing oil system has the advantage of automatically scraping and stacking the oil residue after the oil pressing is completed, which can effectively reduce the difficulty of slag removal and improve the slag removal effect. Specifically, through the design of the slag stacking part, the compression spring can be compressed during the oil pressing process of the pressing plate to store energy for the downward movement of the scraper, and after the pressing is completed, the scraper automatically protrudes outward and rotates with the pressing plate to effectively stack the oil residue.

[0031] In summary, the present invention can perform effective linear pressing and grinding pressing on the raw materials in sequence, thereby ensuring the oil yield, and will not affect the cold pressing effect due to temperature increase caused by improper oil pressing operation. At the same time, the oil residue can be automatically scraped and accumulated after oil pressing and sucked out, without manual slag removal, and the slag removal effect is good, which effectively improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a low-temperature cold-pressing oil system proposed by the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0034] Figure 3 for Figure 1 A top view of

[0035] Figure 4 for Figure 3 Schematic diagram of the structure of the AA surface in the middle;

[0036] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure;

[0037] Figure 6 for Figure 2 Schematic diagram of the internal structure of the middle body;

[0038] Figure 7 for Figure 6 Schematic diagram of the structure after removing the press plate and fixed column;

[0039] Figure 8 for Figure 7 Schematic diagram of the structure after being deflected upwards by a certain angle;

[0040] Fig. 9 for Figure 6 Schematic diagram of the structure after the middle pressing plate and the fixed column are deflected upwards by a certain angle;

[0041] Fig.10 for Figure 8 Schematic diagram of structural decomposition;

[0042] Fig.11 for Fig.10 A schematic diagram of the structure of part B in the middle;

[0043] Fig.12 for Figure 2 A schematic diagram of the structure at the middle transmission rod;

[0044] Fig.13 for Fig.12 Schematic diagram of the structure after being deflected upward by a certain angle.

[0045] In the figure: 1, machine body; 2, filter plate; 3, pressing plate; 4, oil drain seat; 5, fixed column; 6, lifting screw; 7, guide rod; 8, guide groove; 9, annular groove; 10, telescopic groove; 11, telescopic block; 12, spring; 13, fixed rod; 14, receiving groove; 15, scraper; 16, round hole; 17, round rod; 18, installation cavity; 19, moving plate; 20, screw rod; 21, fixed gear; 22, fixed gear ring; 23, connecting plate; 24, fixed sleeve; 25 , telescopic sleeve; 26, compression spring; 27, slide groove; 28, slider; 29, slag removal seat; 30, annular groove; 31, sealing ring; 32, discharge port; 33, fixed frame; 34, servo motor; 35, rotating shaft; 36, belt transmission structure one; 37, fixed plate; 38, transmission rod; 39, threaded rod; 40, belt transmission structure two; 41, piston plate; 42, transmission gear; 43, incomplete gear; 44, torsion spring; 45, connecting gear; 46, arc rack. DETAILED DESCRIPTION

[0046] Reference Figure 1-Figure 13 A low-temperature cold-pressing oil system includes a filter plate 2 fixedly installed in a body 1, the mesh number of the filter plate 2 is selected according to needs and is not limited here, and also includes:

[0047] The cold pressing part cooperates with the filter plate 2 for low-temperature cold pressing oil processing. The cold pressing part includes a driving assembly and a pressing plate 3 sealed and installed in the machine body 1. The driving assembly includes a fixed column 5 fixedly installed on the top of the pressing plate 3. A lifting screw 6 threadedly connected to the fixed column 5 is rotatably installed on the top of the machine body 1. Two slidable guide rods 7 are installed on the side wall of the fixed column 5. Two guide grooves 8 slidably matched with the corresponding guide rods 7 are provided on the inner wall of the machine body 1. An annular groove 9 is provided on the inner wall of the machine body 1 and is interconnected with the bottom of the two guide grooves 8. When the guide rod 7 is located in the guide groove 8, the moving direction of the fixed column 5 in the machine body 1 can be limited. At this time, the rotation of the lifting screw 6 can drive the pressing plate 3 to move up and down in the machine body 1 through the fixed column 5. When the pressing plate 3 moves down, the distance between it and the filter plate 2 will gradually decrease. By utilizing the change in the distance between the two, the raw material located between the two can be subjected to oil pressing processing;

[0048] When the guide rod 7 is located in the annular groove 9, the distance between the pressing plate 3 and the filter plate 2 is also small. At this time, the pressing plate 3 is subjected to a large downward force. If the lifting screw 6 continues to rotate at this time, the guide rod 7 can be driven to rotate in the annular groove 9 through the fixed column 5, so that the pressing plate 3 rotates in the machine body 1. At this time, the raw materials on the filter plate 2 that have been subjected to one oil pressing can be ground and pressed, and the grinding and pressing can also make the raw materials more evenly distributed on the filter plate 2, thereby improving the oil yield. In addition, since the grinding and pressing process is not performed continuously, the problem of poor cold pressing effect caused by the increase of raw material temperature due to long-term grinding and pressing can be avoided.

[0049] A telescopic groove 10 is provided on the side wall of the fixed column 5, and a telescopic block 11 that slides with the telescopic groove 10 is fixedly installed on the side wall of the guide rod 7, and a spring 12 is installed between the telescopic block 11 and the telescopic groove 10, and a fixed rod 13 that slides with the telescopic block 11 is fixedly installed in the telescopic groove 10. Under the action of the fixed rod 13, the connection stability between the telescopic block 11 and the telescopic groove 10 can be effectively guaranteed to avoid the problem of separation between the two. When the pressing plate 3 moves downward to process the raw material for oil pressing, it can make the guide rod 7 overcome the elastic force of the spring 12 and move up in the telescopic groove 10 under the reaction force of the raw material. At this time, the spring 12 is compressed. When the guide rod 7 is located in the annular groove 9 and the oil in the subsequent raw material is squeezed out to reduce the volume, the elastic force of the spring 12 will continue to exert a downward force on the pressing plate 3. Therefore, the pressing plate 3 can always maintain sufficient pressure on the raw material during the grinding and oil pressing process to ensure the overall oil pressing effect.

[0050] A feeding hopper is fixedly installed on the side wall of the machine body 1, and the connecting end of the feeding hopper and the machine body 1 is located between the top of the sealing ring 31 and the bottom of the pressing plate 3. The feeding hopper is used to feed raw materials into the machine body 1 for low-temperature cold pressing. An oil drain seat 4 is fixedly installed on the side wall of the machine body 1, and the oil drain seat 4 is located below the filter plate 2. After the oil pressing process is completed, the squeezed oil will pass through the filter plate 2 and drip onto the lower end of the machine body 1. After that, the staff can open the oil drain seat 4 to collect, filter, and refine the squeezed oil.

[0051] The slag stacking part is used to stack the oil residue after pressing. The slag stacking part includes a scraper 15 slidably installed on the bottom of the pressing plate 3. A receiving groove 14 that slidably cooperates with the scraper 15 is provided at the bottom of the pressing plate 3. A round rod 17 is fixedly installed on the side wall of the scraper 15, and a round hole 16 that slidably cooperates with the round rod 17 is provided at the bottom of the pressing plate 3. At the same time, the round hole 16 is communicated with the receiving groove 14. When the round rod 17 moves up and down in the round hole 16, it can drive the scraper 15 to move up and down at the bottom of the pressing plate 3. When the scraper 15 protrudes from the receiving groove 14 and the pressing plate 3 rotates, the scraper 15 can be used to scrape the pressed raw materials from the filter plate 2 and stack them together as the scraper 15 rotates, so as to facilitate subsequent unified processing.

[0052] A retractable assembly matched with the scraper 15 is installed in the slag stacking part, and the retractable assembly includes a movable plate 19 slidably installed in the pressing plate 3, and a mounting cavity 18 slidably matched with the movable plate 19 is provided in the pressing plate 3. A connecting plate 23 is fixedly installed at the bottom of the movable plate 19, and a fixing sleeve 24 is fixedly installed at the bottom of the connecting plate 23. A telescopic sleeve 25 slidably matched with the fixing sleeve 24 is fixedly installed on the top of the round rod 17. A compression spring 26 is installed between the connecting plate 23 and the round rod 17. Two slide grooves 27 are provided on the inner wall of the fixing sleeve 24. Two sliders 28 slidably matched with the corresponding slide grooves 27 are fixedly installed on the side wall of the telescopic sleeve 25. Through the cooperation of the slider 28 and the slide groove 27, the horizontal connection effect between the connecting plate 23 and the round rod 17 can be guaranteed, thereby avoiding the problem of angle tilt of the scraper 15, and ensuring that it can effectively scrape and stack the raw materials in the subsequent process;

[0053] When the movable plate 19 moves up and down in the installation cavity 18, the scraper 15 can be driven to move up and down at the same time through the cooperation of the connecting plate 23 and the round rod 17. However, during the oil pressing process, since the bottom of the pressing plate 3 is closely attached to the raw materials on the surface of the filter plate 2, the scraper 15 cannot extend from the top of the pressing plate 3. At this time, the compression spring 26 will be compressed to store energy. When the pressing plate 3 moves up and resets, the scraper 15 can extend from the accommodating groove 14 under the elastic force of the compression spring 26, and complete the scraping and accumulation of the raw materials as the pressing plate 3 rotates during the period before it moves up and resets. In order to meet this operation, the depth of the annular groove 9 is set to be greater than the thickness of the guide rod 7.

[0054] A control mechanism matched with the moving plate 19 is installed between the pressing plate 3 and the machine body 1; the control mechanism includes a fixed gear ring 22 fixedly installed at the bottom of the annular groove 9, a screw rod 20 is rotatably installed on the pressing plate 3, and a fixed gear 21 matched with the fixed gear ring 22 is fixedly installed on the top of the screw rod 20, and one end of the screw rod 20 located in the installation cavity 18 is threadedly connected with the moving plate 19, when the pressing plate 3 moves downward so that the guide rod 7 enters the annular groove 9 from the guide groove 8, the fixed gear 21 on the pressing plate 3 also enters the annular groove 9, and it will engage with the bottom of the annular groove 9. The fixed gear ring 22 of the upper part is meshed. Since the rotation of the lifting screw 6 drives the pressing plate 3 to rotate at the same time, the fixed gear 21 will rotate relative to the fixed gear ring 22. The meshing effect of the two makes the fixed gear 21 rotate on its own. Therefore, the screw rod 20 will rotate to drive the movable plate 19 to move downward in the installation cavity 18, providing a driving force for the outward protrusion of the scraper 15. Conversely, when the lifting screw 6 rotates to move the pressing plate 3 upward and reset, the meshing of the fixed gear 21 and the fixed gear ring 22 will cause the screw rod 20 to drive the movable plate 19 to move upward and reset in the installation cavity 18.

[0055] The slag removal part is used to discharge the oil residue accumulated in the slag stacking part out of the machine body 1. The slag stacking part includes a slag removal seat 29 fixedly installed on the side wall of the machine body 1. A threaded rod 39 is rotatably installed on the slag removal seat 29, and one end of the threaded rod 39 located in the slag removal seat 29 is threadedly connected to a piston plate 41 that cooperates with the slag removal seat 29 for sliding sealing. A discharge groove is provided at the bottom of the slag removal seat 29, and a sealing plate is sealed in the discharge groove. An air hole is provided at the top of the slag removal seat 29. The air hole is set to keep the air pressure of the upper end part of the piston plate 41 constant when it moves up and down. A one-way slag discharge port is provided on the sealing plate, and the one-way slag discharge port allows The gas and materials in the slag removal seat 29 are allowed to be discharged outward. When the threaded rod 39 rotates, it can drive the piston plate 41 to move up and down in the slag removal seat 29. When the slag removal seat 29 moves up, a negative pressure is generated at the lower end thereof, and the negative pressure is used as a driving force to extract and discharge the accumulated oil residue. When the slag removal seat 29 moves down, the air pressure at the lower end increases, and the oil residue drawn into the slag removal seat 29 is discharged through the one-way slag discharge port by using the air pressure, thereby completing the removal of the oil residue. After using it for a period of time, the staff can remove the sealing plate from the bottom of the slag removal seat 29 and clean the inside of the slag removal seat 29.

[0056] An annular groove 30 is provided on the inner wall of the body 1, and a sealing ring 31 is sealingly and rotatably installed in the annular groove 30, and a discharge port 32 is provided on the sealing ring 31. A one-way suction pipe is fixedly connected between the slag removal seat 29 and the annular groove 30. The one-way suction pipe can unidirectionally suck the material in the body 1 into the slag removal seat 29. When negative pressure is generated at the bottom of the slag removal seat 29 and the discharge port 32 on the sealing ring 31 is aligned, the negative pressure extraction effect can be used to draw the oil residue accumulated on the filter plate 2 into the slag removal seat 29 from the one-way suction pipe and discharge it. No manual processing by the staff is required, which can effectively improve the overall production efficiency. The one-way suction pipe, air holes, sealing plates and one-way slag discharge port are not marked in the figure.

[0057] A transmission assembly matched with the slag removal seat 29 and the sealing ring 31 is installed on the machine body 1, and the transmission assembly includes a rotating shaft 35 rotatably installed on the machine body 1, and a belt transmission structure 36 is installed between the rotating shaft 35 and the lifting screw 6. Under the action of the belt transmission structure 36, the rotating shaft 35 can be driven to rotate simultaneously by the rotation of the lifting screw 6. A fixing frame 33 is fixedly installed on the top of the machine body 1, and a servo motor 34 is fixedly installed on the top of the fixing frame 33, and the output end of the servo motor 34 is fixedly connected to the top of the lifting screw 6. The servo motor 34 serves as the total driving source of the low-temperature cold pressing system. Specifically, a servo motor of model 130ST-M05025LFB can be used. When it rotates forward, it can drive the lifting screw 6 to rotate forward, providing drive for the downward movement and pressing of the pressing plate 3. When it rotates reversely, it can provide drive for the reset of the pressing plate 3.

[0058] A fixing plate 37 is fixedly mounted on the side wall of the machine body 1, and a transmission rod 38 is rotatably mounted on the fixing plate 37. A belt transmission structure 2 40 is installed between the transmission rod 38 and the threaded rod 39. Under the action of the belt transmission structure 2 40, the threaded rod 39 can be driven to rotate by the rotation of the transmission rod 38, thereby driving the piston plate 41 to move up and down. A connecting gear 45 is fixedly mounted on the bottom of the transmission rod 38, and an arc-shaped rack 46 meshing with the connecting gear 45 is fixedly mounted on the outer wall of the sealing ring 31. The side wall of the machine body 1 is provided with an arc groove matched with the arc rack 46. Under the cooperation of the arc rack 46 and the connecting gear 45, when the transmission rod 38 rotates, the sealing ring 31 can be driven to rotate in the annular groove 30 at the same time, so that the corresponding relationship between the discharge port 32 and the one-way suction pipe can be controlled, and the automatic slag removal process can be realized by cooperating with the up and down movement of the piston plate 41. The belt transmission structure 1 36 and the belt transmission structure 2 40 are both existing technologies, and their working principles and specific structures are not described here.

[0059] A reciprocating mechanism is installed between the rotating shaft 35 and the transmission rod 38. The reciprocating mechanism includes an incomplete gear 43 rotatably installed on the rotating shaft 35 through a one-way bearing. The design of the one-way bearing allows the incomplete gear 43 to rotate simultaneously when the rotating shaft 35 is reversed. Conversely, when the rotating shaft 35 rotates forward, the incomplete gear 43 will not be driven to rotate. A transmission gear 42 that matches the incomplete gear 43 is fixedly installed on the top of the transmission rod 38. Under the meshing effect of the incomplete gear 43 and the transmission gear 42, the transmission rod 38 can be driven to rotate intermittently through the rotation of the rotating shaft 35. When the oil pressing is completed, the servo motor 34 rotates in the opposite direction to move the pressing plate 3 upward and reset, and the incomplete gear 43 rotates simultaneously with the rotating shaft 35. At this time, the transmission rod 38 can be driven to provide drive for the automatic removal of the oil residue. A torsion spring 44 is installed between the fixed plate 37 and the transmission gear 42. The elastic force of the torsion spring 44 can reset the transmission rod 38 when the incomplete gear 43 is separated from the transmission gear 42. At this time, the sealing ring 31 and the piston plate 41 can be reset, and the extracted oil residue is discharged from the residue removal seat 29, and preparations are made for the next extraction of oil residue.

[0060] In the present invention, a method for using a low-temperature cold-pressing oil system comprises the following steps:

[0061] Feeding: The raw material to be squeezed is fed into the machine body 1 through the feeding port so that it falls on the filter plate 2. After a certain amount of material is fed, the feeding is stopped and the power supply of the servo motor 34 is turned on to start forward rotation;

[0062] Linear pressing: During the forward rotation of the servo motor 34, the lifting screw 6 is driven to rotate forward. At this time, due to the cooperation between the guide rod 7 and the guide groove 8, the moving direction of the fixed column 5 is limited. Therefore, during the rotation of the lifting screw 6, the fixed column 5 drives the pressing plate 3 to move downward toward the filter plate 2 to press the raw materials on the filter plate 2.

[0063] Pressing energy storage: When the pressing plate 3 approaches the filter plate 2, the existence of the raw material will exert a reverse force on the pressing plate 3, so the telescopic block 11 will overcome the elastic force of the spring 12 and move upward in the telescopic groove 10. At this time, the spring 12 is compressed to store energy. As the pressing progresses, the oil in the raw material is squeezed out, so the volume of the raw material will decrease. At this time, the elastic force of the spring 12 will cause the guide rod 7 to drive the pressing plate 3 to continue to move downward for a certain distance, so that it continues to exert effective pressure on the raw material;

[0064] Grinding and pressing: When the guide rod 7 enters the annular groove 9 from the guide groove 8, the reaction force on the pressing plate 3 exerts resistance to its downward movement. At this time, the continuous rotation of the lifting screw 6 will drive the fixed column 5 to rotate together, so the pressing plate 3 will rotate relative to the filter plate 2 at this time, and because the spring 12 has stored energy before, the pressing plate 3 can also apply pressure to the raw material during the rotation process, thereby completing the grinding and pressing process and improving the oil yield of the raw material;

[0065] Preparation for slag removal: After the guide rod 7 enters the annular groove 9, the fixed gear 21 on the pressing plate 3 also enters the annular groove 9 and meshes with the fixed gear ring 22. When the pressing plate 3 rotates, the cooperation between the fixed gear 21 and the fixed gear ring 22 causes the screw rod 20 to start rotating, driving the movable plate 19 to move downward in the installation cavity 18. However, since the pressing plate 3 is in the process of squeezing oil from the raw material at this time, the gap between the bottom of the pressing plate 3 and the filter plate 2 will be filled with raw materials. Then, when the movable plate 19 moves downward, the scraper 15 cannot pop out, so the compression spring 26 between the round rod 17 and the connecting plate 23 is compressed to store energy;

[0066] Oil residue accumulation: After the oil pressing is completed, the servo motor 34 rotates in the opposite direction. At this time, the cooperation between the lifting screw 6 and the fixed column 5 causes the pressing plate 3 to rotate first and then move upward. At the same time, the elastic force of the compression spring 26 causes the scraper 15 to pop out of the receiving groove 14 by a certain distance. In this process, the pressed oil residue can be scraped and accumulated as the pressing plate 3 rotates.

[0067] Slag removal energy storage: When the servo motor 34 rotates in the reverse direction, the belt transmission structure 1 36 drives the rotating shaft 35 to rotate in the reverse direction at the same time. At this time, the one-way bearing is in a locked state, and the incomplete gear 43 rotates in the reverse direction at the same time. Through its meshing with the transmission gear 42, it intermittently drives the transmission rod 38 to rotate in the forward direction. When the transmission rod 38 rotates in the forward direction, the belt transmission structure 2 40 drives the threaded rod 39 to rotate in the forward direction, so that the piston plate 41 moves up in the slag removal seat 29. At this time, negative pressure is generated at the one-way suction pipe, and the negative pressure gradually increases as the piston plate 41 moves up;

[0068] Suction of oil residue: When the transmission rod 38 rotates forward, the sealing ring 31 can also be driven to rotate in the annular groove 30 in the reverse direction through the cooperation of the connecting gear 45 and the arc-shaped rack 46. At this time, the upper discharge port 32 will approach the one-way suction pipe as it rotates. When the positions of the two are aligned, the oil residue accumulated on the filter plate 2 can be sucked into the residue removal seat 29 under the action of negative pressure;

[0069] Discharging oil residue: When the incomplete gear 43 is separated from the transmission gear 42, the elastic force of the torsion spring 44 causes the transmission rod 38 to rotate in the reverse direction and reset. At this time, the sealing ring 31 rotates forward and resets. At the same time, the threaded rod 39 rotates in the reverse direction, so that the piston plate 41 moves downward in the slag removal seat 29, and the oil residue sucked into it is discharged through the one-way slag discharge port on the sealing plate, thereby achieving the effect of automatically removing the oil residue.

[0070] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A low temperature cold pressing oil system, comprising a filter plate (2) fixedly mounted in a machine body (1), characterized in that: Also includes: A cold pressing section, the cold pressing section cooperates with the filter plate (2) for low-temperature cold pressing oil processing, the cold pressing section comprises a driving assembly and a pressing plate (3) sealed and installed in a machine body (1), the driving assembly comprises a fixing column (5) fixedly installed on the top of the pressing plate (3), a lifting screw (6) threadedly connected to the fixing column (5) is rotatably installed on the top of the machine body (1), and two slidable guide rods (7) are installed on the side wall of the fixing column (5); A slag stacking section, which is used to stack the oil residue after pressing, and comprises a scraper (15) slidably mounted on the bottom of a pressing plate (3), a retractable assembly matched with the scraper (15) is mounted in the slag stacking section, and the retractable assembly comprises a moving plate (19) slidably mounted in the pressing plate (3), and a control mechanism matched with the moving plate (19) is mounted between the pressing plate (3) and the machine body (1); The slag removal part is used to discharge the oil residue accumulated in the slag accumulation part out of the machine body (1). The slag accumulation part comprises a slag removal seat (29) fixedly mounted on the side wall of the machine body (1). An annular groove (30) is provided on the inner wall of the machine body (1). A sealing ring (31) is rotatably mounted in the annular groove (30). A discharge port (32) is provided on the sealing ring (31). A one-way suction pipe is fixedly connected between the slag removal seat (29) and the annular groove (30). A transmission assembly matching the slag removal seat (29) and the sealing ring (31) is mounted on the machine body (1).

2. A low temperature cold pressing oil system according to claim 1, characterized in that: The inner wall of the machine body (1) is provided with two guide grooves (8) which are slidably matched with corresponding guide rods (7), and the inner wall of the machine body (1) is provided with an annular groove (9) which is interconnected with the bottoms of the two guide grooves (8).

3. A low temperature cold pressing oil system according to claim 2, characterized in that: A telescopic groove (10) is provided on the side wall of the fixed column (5), a telescopic block (11) which is slidably matched with the telescopic groove (10) is fixedly installed on the side wall of the guide rod (7), a spring (12) is installed between the telescopic block (11) and the telescopic groove (10), and a fixed rod (13) which is slidably matched with the telescopic block (11) is fixedly installed in the telescopic groove (10).

4. A low temperature cold pressing oil system according to claim 3, characterized in that: A connecting plate (23) is fixedly mounted on the bottom of the movable plate (19), and a fixing sleeve (24) is fixedly mounted on the bottom of the connecting plate (23); a round rod (17) is fixedly mounted on the side wall of the scraper (15), and a telescopic sleeve (25) slidably matched with the fixing sleeve (24) is fixedly mounted on the top of the round rod (17); a compression spring (26) is mounted between the connecting plate (23) and the round rod (17); two sliding grooves (27) are arranged on the inner wall of the fixing sleeve (24); and two sliding blocks (28) slidably matched with the corresponding sliding grooves (27) are fixedly mounted on the side wall of the telescopic sleeve (25).

5. A low temperature cold pressing oil system according to claim 4, characterized in that: The pressing plate (3) is provided with a mounting cavity (18) which is slidably matched with the movable plate (19); the bottom of the pressing plate (3) is provided with a receiving groove (14) which is slidably matched with the scraper (15); the side wall of the receiving groove (14) is provided with a round hole (16) which is slidably matched with the round rod (17); and the round hole (16) and the mounting cavity (18) are interconnected; the control mechanism comprises a fixed gear ring (22) fixedly mounted at the bottom of the annular groove (9); a screw rod (20) is rotatably mounted on the pressing plate (3); and a fixed gear (21) which is matched with the fixed gear ring (22) is fixedly mounted on the top of the screw rod (20); and one end of the screw rod (20) located in the mounting cavity (18) is threadedly connected to the movable plate (19).

6. A low temperature cold pressing oil system according to claim 5, characterized in that: A threaded rod (39) is rotatably mounted on the slag removal seat (29), and one end of the threaded rod (39) located in the slag removal seat (29) is threadedly connected to a piston plate (41) that cooperates with the slag removal seat (29) in a sliding seal. A discharge groove is provided at the bottom of the slag removal seat (29), and a sealing plate is sealed in the discharge groove. An air hole is provided at the top of the slag removal seat (29), and a one-way slag discharge port is provided on the sealing plate.

7. A low temperature cold pressing oil system according to claim 6, characterized in that: The transmission assembly comprises a rotating shaft (35) rotatably mounted on the machine body (1), a belt transmission structure (36) is installed between the rotating shaft (35) and the lifting screw (6), a fixed plate (37) is fixedly mounted on the side wall of the machine body (1), and a transmission rod (38) is rotatably mounted on the fixed plate (37), a belt transmission structure (40) is installed between the transmission rod (38) and the threaded rod (39), a connecting gear (45) is fixedly mounted on the bottom of the transmission rod (38), an arc-shaped rack (46) meshing with the connecting gear (45) is fixedly mounted on the outer wall of the sealing ring (31), an arc-shaped groove matching the arc-shaped rack (46) is opened on the side wall of the machine body (1), and a reciprocating mechanism is installed between the rotating shaft (35) and the transmission rod (38).

8. A low temperature cold pressing oil system according to claim 7, characterized in that: The reciprocating mechanism comprises an incomplete gear (43) rotatably mounted on a rotating shaft (35) via a one-way bearing, a transmission gear (42) matched with the incomplete gear (43) is fixedly mounted on the top of the transmission rod (38), and a torsion spring (44) is installed between the fixed plate (37) and the transmission gear (42).

9. A low temperature cold pressing oil system according to claim 8, characterized in that: A fixing frame (33) is fixedly mounted on the top of the machine body (1), and a servo motor (34) is fixedly mounted on the top of the fixing frame (33), and the output end of the servo motor (34) is fixedly connected to the top of the lifting screw (6). A feeding hopper is fixedly mounted on the side wall of the machine body (1), and the connection end between the feeding hopper and the machine body (1) is located between the top of the sealing ring (31) and the bottom of the pressing plate (3).

10. A method for using a low-temperature cold-pressed oil system, using the low-temperature cold-pressed oil system according to claim 9, characterized in that: The following steps are involved: S1: The raw material to be squeezed is fed into the machine body (1) through the feeding port so that it falls on the filter plate (2). After a certain amount of material is fed, the feeding is stopped and the power supply of the servo motor (34) is turned on to start forward rotation; S2: During the forward rotation of the servo motor (34), the lifting screw (6) is driven to rotate forward. At this time, due to the cooperation between the guide rod (7) and the guide groove (8), the moving direction of the fixed column (5) is limited. Therefore, during the rotation of the lifting screw (6), the fixed column (5) drives the pressing plate (3) to move downward toward the filter plate (2) to press the raw materials on the filter plate (2); S3: When the pressing plate (3) approaches the filter plate (2), the presence of the raw material will exert a reverse force on the pressing plate (3), so the telescopic block (11) will overcome the elastic force of the spring (12) and move upward in the telescopic groove (10). At this time, the spring (12) is compressed to store energy. As the pressing progresses, the oil in the raw material is squeezed out, so the volume of the raw material will decrease. At this time, the elastic force of the spring (12) will cause the guide rod (7) to drive the pressing plate (3) to continue to move downward for a certain distance, so that it continues to exert effective pressure on the raw material; S4: When the guide rod (7) enters the annular groove (9) from the guide groove (8), the reaction force on the pressing plate (3) exerts resistance on its downward movement. At this time, the continuous rotation of the lifting screw (6) will drive the fixed column (5) to rotate together, so that the pressing plate (3) will rotate relative to the filter plate (2). Since the spring (12) has stored energy before, the pressing plate (3) can also apply pressure to the raw material during the rotation process, thereby completing the grinding and pressing process and improving the oil yield of the raw material. S5: After the guide rod (7) enters the annular groove (9), the fixed gear (21) on the pressing plate (3) also enters the annular groove (9) and meshes with the fixed gear ring (22). When the pressing plate (3) rotates, the cooperation between the fixed gear (21) and the fixed gear ring (22) causes the screw rod (20) to start rotating, driving the movable plate (19) to move downward in the installation cavity (18). However, since the pressing plate (3) is in the process of squeezing oil from the raw material at this time, the gap between the bottom of the pressing plate (3) and the filter plate (2) will be filled with the raw material. Then, when the movable plate (19) moves downward, the scraper (15) cannot pop out, so the compression spring (26) located between the round rod (17) and the connecting plate (23) is compressed and stores energy; S6: After the oil pressing is completed, the servo motor (34) rotates in the opposite direction. At this time, the cooperation between the lifting screw (6) and the fixed column (5) causes the pressing plate (3) to rotate first and then move upward. At the same time, the elastic force of the compression spring (26) causes the scraper (15) to pop out of the receiving groove (14) by a certain distance. In this process, as the pressing plate (3) rotates, the oil residue after pressing can be scraped and accumulated. S7: When the servo motor (34) rotates in the reverse direction, the belt transmission structure 1 (36) drives the rotating shaft (35) to rotate in the reverse direction at the same time. At this time, the one-way bearing is in a locked state, and the incomplete gear (43) rotates in the reverse direction at the same time. Through its meshing with the transmission gear (42), it intermittently drives the transmission rod (38) to rotate in the forward direction. When the transmission rod (38) rotates in the forward direction, the belt transmission structure 2 (40) drives the threaded rod (39) to rotate in the forward direction, so that the piston plate (41) moves upward in the slag removal seat (29). At this time, negative pressure is generated at the one-way suction pipe, and the negative pressure gradually increases as the piston plate (41) moves upward; S8: When the transmission rod (38) rotates in the forward direction, the sealing ring (31) can also be driven to rotate in the annular groove (30) in the reverse direction through the cooperation of the connecting gear (45) and the arc-shaped rack (46). At this time, the upper discharge port (32) will approach the one-way suction pipe as the rotation progresses. When the positions of the two are aligned, the oil residue accumulated on the filter plate (2) can be sucked into the residue removal seat (29) under the action of negative pressure. S9: When the incomplete gear (43) is separated from the transmission gear (42), the elastic force of the torsion spring (44) causes the transmission rod (38) to rotate in the reverse direction to reset. At this time, the sealing ring (31) rotates forward to reset. At the same time, the threaded rod (39) rotates in the reverse direction, so that the piston plate (41) moves downward in the slag removal seat (29). The oil residue sucked into the sealing plate is discharged through the one-way slag discharge port on the sealing plate, thereby achieving the effect of automatically removing the oil residue.

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