Cold pressing device and cold pressing method for camellia oil

Abstract

The invention relates to the technical field of camellia oil processing, in particular to a cold pressing device for camellia oil and a cold pressing method.The cold pressing device for the camellia oil comprises a rack, a pressing barrel, a plurality of material supporting plates, a plurality of discs and a plurality of transmission assemblys.The rack is fixedly arranged, the pressing barrel is vertically arranged on the rack, and the material supporting plates are arranged on the rack; the plurality of material supporting plates can be arranged in the squeezing cylinder in a sliding mode in the vertical direction, the distance between every two adjacent material supporting plates is consistent, each material supporting plate is provided with a filtering hole, and an oil storage cavity is formed below the material supporting plates; each disc is located between every two adjacent material supporting plates, and each transmission assembly can control the multiple discs to slide in the squeezing barrel in the vertical direction. The transmission assembly is arranged, the multiple discs can synchronously get close to the corresponding material supporting plates, oil between the multiple material supporting plates and the corresponding discs is squeezed at the same time, the working efficiency is improved, oil flowing out after the oil above the material supporting plates is squeezed enters the oil storage cavity, sputtering is avoided, and oil waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of camellia oil processing, in particular to a cold pressing device and a cold pressing method for camellia oil. Background Art

[0002] The traditional oil pressing operation process involves more than 10 steps, including seed screening, seed frying, powder grinding, powder steaming, cake treading, pressing, wedge insertion, impact pressing, and oil collection. Each step is completed manually, with low production efficiency and disadvantages such as no oil or little oil being pressed out. With the development of oil pressing machinery, the pressing efficiency of camellia oil has been improved.

[0003] Oil press refers to a machine that squeezes oil out of oil with the help of mechanical external force. The hydraulic cold pressing method uses hydraulic method to directly press the oil in the pressing barrel at room temperature to directly squeeze out the oil in the oil. The cold pressed oil produced by the hydraulic cold pressing method contains very low impurities, retains a large amount of natural nutritional components of oil, and can be eaten after simple filtration.

[0004] Common ones include hydraulic oil presses, which mainly use the operation of hydraulic cylinders for pressing. Since the hydraulic process is long, and the next hydraulic pressure needs to complete the oil pressing before the pressing tank can be emptied, the pressing efficiency is slow. In addition, during the pressing process, the continuous pressurization of the hydraulic cylinder will cause the oil that has been squeezed out of the pressing tank to be in an environment with gradually increasing pressure, which can easily cause the oil to splash when flowing out of the pressing tank, causing waste and pollution to the surrounding environment. Therefore, the hydraulic cylinder needs to be pressurized intermittently, further delaying the working efficiency of the press. Summary of the invention

[0005] Based on this, it is necessary to provide a cold pressing device and a cold pressing method for camellia oil in order to address the problem of low working efficiency of the current hydraulic oil press.

[0006] The above purpose is achieved through the following technical solutions: A cold pressing device for camellia oil comprises a frame, a pressing cylinder, a supporting plate and an extrusion mechanism, wherein the frame is fixedly arranged, the pressing cylinder is vertically arranged on the frame, a plurality of supporting plates are provided, and the plurality of supporting plates can be slidably arranged in the pressing cylinder in the vertical direction, and the plurality of supporting plates are arranged in sequence in the vertical direction in the pressing cylinder, a fixed spacing is provided between two adjacent supporting plates, and the spacing between every two adjacent supporting plates is consistent, each supporting plate is provided with a filter hole penetrating through itself in the vertical direction, and an oil storage cavity is provided under each supporting plate; the extrusion mechanism comprises a disc, a transmission assembly, a hydraulic assembly and a drive assembly, a plurality of discs are provided, and the plurality of discs can slide in the vertical direction The disc is arranged in the pressing cylinder, the circumference of the disc is slidably connected to the pressing cylinder, and each disc is located between two adjacent supporting plates, the oil is located on the supporting plates and below the corresponding disc, each disc includes a plurality of pressure plates, and the plurality of pressure plates enclose a complete circle, and a plurality of transmission components are provided, each of which can control a plurality of discs or one of the pressure plates in each disc to slide in the pressing cylinder along the vertical direction at the same time, the hydraulic component is arranged on the frame and located above the pressing cylinder, and is used to control the plurality of discs to slide in the pressing cylinder along the vertical direction at the same time through the transmission component; the driving component is used to control the plurality of transmission components to drive the corresponding pressure plates to move downward in sequence.

[0007] Preferably, the number of transmission assemblies is consistent with the number of pressure plates in each disc, and each transmission assembly includes a top plate, a ball screw and a plurality of ball nuts, the top plate is slidably arranged in the pressing cylinder along the vertical direction, the top plate is fan-shaped, and the arc surface of the top plate is slidably connected to the inner wall of the pressing cylinder, and the multiple top plates in the multiple transmission assemblies can form a circle, and the top plate is located above all the supporting plates and can directly contact the hydraulic assembly; the ball screw is vertically arranged on the frame, the ball screw is rotatably connected to the frame, the ball screw is located inside the pressing cylinder, and the ball screw passes through the supporting plate, the top plate and a pressure plate in each disc along the vertical direction, the ball screw is respectively slidably connected to the supporting plate, the top plate and the corresponding pressure plate in the vertical direction, a plurality of ball nuts are threadedly connected to the ball screw, and the upper surfaces of the pressure plate and the top plate slidably connected to the same ball screw are respectively fixedly connected to a ball nut.

[0008] Preferably, the hydraulic assembly includes a hydraulic cylinder and a push plate. The hydraulic cylinder is fixedly mounted on the frame and extends and retracts in the vertical direction. The push plate is fixedly mounted on the hydraulic cylinder and the axis of the push plate extends in the vertical direction. The push plate is provided with through holes whose number is the same as the ball screw. Each through hole is coaxial with a ball screw, and the diameter of the through hole is larger than the diameter of the ball nut. A vertically placed disc spring is provided on one side of each top plate away from the support plate, and the push plate can abut against the disc spring.

[0009] Preferably, a first cavity is provided on the frame, the first cavity is located below the pressing cylinder, the bottom end of the ball screw is located in the first cavity, each ball screw is provided with a first gear, the first gear is located in the first cavity, and the first gear is fixedly connected to the ball screw; the driving assembly includes a moving shell, a motor and an incomplete gear, the moving shell is horizontally slidably arranged in the first cavity, the motor is arranged in the moving shell, the incomplete gear is fixedly mounted on the output shaft of the motor, and the incomplete gear can mesh with multiple first gears in sequence.

[0010] Preferably, a pedal is provided in the moving shell for sliding in the vertical direction, one end of the pedal penetrates the moving shell and the frame in the horizontal direction and is slidably connected to the moving shell and the frame, a spring is provided under the pedal, the spring expands and contracts in the vertical direction, and its two ends are respectively connected to the pedal and the moving shell; one end of the pedal located in the moving shell is fixedly installed with the same number of ratchet mechanisms as the ball screw, each ratchet mechanism corresponds to a ball screw, and the ratchet mechanism can be sleeved on the corresponding ball screw to control the unidirectional rotation of the ball screw.

[0011] Preferably, a plurality of telescopic cylinders penetrating the supporting plate are fixedly mounted on the supporting plate, the number of the telescopic cylinders is consistent with the number of the ball screws, and the telescopic cylinders and the ball screws are arranged correspondingly, and the telescopic cylinders can be sleeved on the ball screws.

[0012] Preferably, the cold pressing device for camellia oil also includes a positioning mechanism, and a plurality of positioning mechanisms are provided. The plurality of positioning mechanisms are evenly arranged around the circumference of the pressing cylinder, and each positioning mechanism includes a clamping block and a connecting plate. A plurality of clamping blocks are provided, and the plurality of clamping blocks penetrate the circumference of the pressing cylinder in the horizontal direction, and the clamping blocks are slidably connected to the pressing cylinder, and the plurality of clamping blocks are arranged in the vertical direction. A clamping block is provided between two adjacent supporting plates, and each clamping block can abut against the lower end of the corresponding supporting plate above it, the pressing plate is slidably connected to the clamping block, and the connecting plate is connected to the plurality of clamping blocks at the same time, and a clamping hoop is provided on the outside of the pressing cylinder, and the inner surface of the clamping hoop can be slidably connected to a side of the connecting plate in the plurality of positioning mechanisms away from the pressing cylinder, so as to limit the movement of the connecting plate in the radial direction of the pressing cylinder.

[0013] Preferably, a plurality of groups of oil drain grooves are provided on the circumferential surface of the pressing cylinder and penetrate the pressing cylinder in the radial direction thereof. The plurality of groups of oil drain grooves are arranged in the vertical direction, and each group of oil drain grooves is connected to an oil storage cavity.

[0014] Preferably, a push plate is provided on the frame, which is slidably arranged on the frame in a horizontal direction, an oil collecting groove is provided on the push plate, and the pressing cylinder is arranged in the oil collecting groove, and the size of the oil collecting groove is larger than the diameter of the pressing cylinder; a bottom plate which moves in a vertical direction is provided on the frame, the bottom plate is located in the oil collecting groove, the pressing cylinder is sleeved on the bottom plate, the peripheral surface of the bottom plate is slidably connected to the inner wall of the pressing cylinder, and a dynamic seal is formed between the bottom plate and the pressing cylinder, the bottom plate is located under the lowest supporting plate, and a plurality of ball screws penetrate the bottom plate and can be threadedly connected to the bottom plate.

[0015] The present invention also provides a cold pressing method for camellia oil, comprising the following steps: S1, placing the supporting plates into the pressing cylinder one by one, placing a preset amount of oil on each supporting plate, and then placing a disc on the oil.

[0016] S2, continue to put a supporting plate, then put a preset amount of oil, then put the disc, and so on, until the last supporting plate is put on, and finally put a preset amount of oil.

[0017] S3, starts the hydraulic assembly, and the hydraulic assembly squeezes the oil.

[0018] S4, when executing S3, the driving component is started at the same time, and the driving component assists the hydraulic component in squeezing oil through the transmission component.

[0019] The beneficial effects of the present invention are as follows: through the coordinated arrangement of the disc, oil and supporting plates, when the hydraulic component drives the disc to move downward, the oil between the disc and the supporting plates will be squeezed, and the oil in the oil will be discharged through the filter holes; through the coordinated arrangement between the multiple supporting plates, after the multiple supporting plates move to the extreme position in the pressing cylinder, there is still a spacing between two adjacent supporting plates, and a transmission component is set, so that the multiple discs can approach the corresponding supporting plates synchronously, and the oil between the multiple supporting plates and the corresponding discs is squeezed at the same time, which greatly shortens the working stroke of the hydraulic component and improves the working efficiency. At the same time, the oil flowing out after the oil above the supporting plate is squeezed will enter the oil storage chamber. Even if the pressure of the oil is high when it flows into the oil storage chamber, it will not splash to the outside of the pressing cylinder, thereby reducing oil waste.

[0020] The oil on the supporting plate is divided into multiple parts by multiple pressure plates of the disc. A driving assembly is set. When the hydraulic assembly squeezes the oil, the driving assembly sequentially controls a single transmission assembly relative to the hydraulic assembly to drive a pressure plate in each disc again to squeeze the oil at the corresponding position. At this time, the area of ​​the disc under the action of the hydraulic assembly is reduced, and the squeezing effect on the remaining oil is increased, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a cold pressing device for camellia oil provided in an embodiment of the present invention; Figure 2 An exploded view of a cold pressing device for camellia oil provided by an embodiment of the present invention; Figure 3 A right side view of a cold pressing device for camellia oil provided by an embodiment of the present invention; Figure 4 for Figure 3 Sectional view along AA direction; Figure 5 for Figure 4 The enlarged view of point B in the middle; Figure 6 for Figure 5 Enlarged view of point C in the middle; Figure 7 A schematic structural diagram of a disc of a cold pressing device for camellia oil provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a support plate of a cold pressing device for camellia oil provided in an embodiment of the present invention; Fig. 9 A schematic structural diagram of a driving assembly of a cold pressing device for camellia oil provided in an embodiment of the present invention.

[0022] in: 100, frame; 101, pressing cylinder; 102, supporting plate; 103, filter hole; 104, oil storage cavity; 105, first cavity; 106, first cylinder; 107, second cylinder; 108, spring; 109, guide column; 110, installation cavity; 111, guide groove; 201, block; 202, connecting plate; 203, protrusion; 204, positioning groove; 205, groove; 206, rotating plate; 207, oil drain groove; 208 , push plate; 209, oil collecting box; 210, oil collecting trough; 211, bottom plate; 301, pressure plate; 302, top plate; 303, ball screw; 304, ball nut; 305, hydraulic push rod; 306, hydraulic cylinder; 307, push plate; 308, through hole; 309, disc spring; 310, first gear; 311, moving shell; 312, motor; 313, incomplete gear; 314, pedal; 315, ratchet mechanism. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figures 1 to 9As shown, an embodiment of the present invention provides a cold pressing device for camellia oil, comprising a frame 100, a pressing cylinder 101, a supporting plate 102 and an extrusion mechanism, wherein the frame 100 is fixedly arranged, the pressing cylinder 101 is vertically arranged on the frame 100, a plurality of supporting plates 102 are provided, and the plurality of supporting plates 102 can be slidably arranged in the pressing cylinder 101 along the vertical direction, and the plurality of supporting plates 102 are arranged in sequence in the vertical direction in the pressing cylinder 101, a fixed spacing is provided between two adjacent supporting plates 102, and the spacing between every two adjacent supporting plates 102 is consistent, each supporting plate 102 is provided with a filter hole 103 penetrating through itself in the vertical direction, and an oil storage cavity 104 is provided under each supporting plate 102; the extrusion mechanism comprises a disc, a transmission assembly, a hydraulic assembly and a drive assembly, a plurality of discs are provided, and the plurality of discs are slidably arranged in the pressing cylinder 101 along the vertical direction, and the disc The circumferential surface is slidably connected with the pressing cylinder 101, and each disc is located between two adjacent supporting plates 102, the oil is located on the supporting plate 102 and below the corresponding disc, each disc includes a plurality of pressing plates 301, and the plurality of pressing plates 301 enclose a complete circle, two adjacent pressing plates 301 are slidably connected, and there is a dynamic seal between the pressing plates 301 and the pressing cylinder 101, and there is also a dynamic seal between the pressing plates 301 and the pressing cylinder 101; there are a plurality of transmission components, each of which can control a plurality of discs or one of the pressing plates 301 in each disc to slide in the pressing cylinder 101 along the vertical direction at the same time, the hydraulic component is arranged on the frame 100 and is located above the pressing cylinder 101, and is used to control the plurality of discs to slide in the pressing cylinder 101 along the vertical direction at the same time through the transmission component; the driving component is used to control the plurality of transmission components to sequentially drive the corresponding pressing plates 301 to move downward.

[0027] Through the coordinated arrangement of the disc, oil and supporting plate 102, when the hydraulic component drives the disc to move downward, the oil between the disc and the supporting plate 102 will be squeezed, and the oil in the oil will be discharged through the filter hole 103. Through the coordinated arrangement between multiple supporting plates 102, after multiple supporting plates 102 move to the extreme position in the pressing cylinder 101, there is still a distance between two adjacent supporting plates 102. A transmission component is set, and multiple discs can approach the corresponding supporting plates 102 synchronously, and the oil between multiple supporting plates 102 and the corresponding discs is squeezed at the same time, which greatly shortens the working stroke of the hydraulic component and improves the working efficiency. At the same time, the oil flowing out after the oil above the supporting plate 102 is squeezed will enter the oil storage chamber 104. Even if the pressure of the oil is high when it flows into the oil storage chamber 104, it will not splash to the outside of the pressing cylinder 101, thereby reducing oil waste.

[0028] The oil on the supporting plate 102 is divided into multiple parts by the multiple pressure plates 301 of the disc. A driving component is set. When the hydraulic component squeezes the oil, the driving component sequentially controls a single transmission component relative to the hydraulic component to drive a pressure plate 301 in each disc again to squeeze the oil at the corresponding position. At this time, the disc area under the action of the hydraulic component is reduced, and the squeezing effect on the remaining oil is increased, thereby further improving the work efficiency.

[0029] In this embodiment, the number of transmission components is consistent with the number of pressure plates 301 in each disc, and each transmission component includes a top plate 302, a ball screw 303 and a plurality of ball nuts 304. The top plate 302 is slidably arranged in the pressing cylinder 101 along the vertical direction. The top plate 302 is fan-shaped, and the arc surface of the top plate 302 is slidably connected to the inner wall of the pressing cylinder 101. The multiple top plates 302 in the multiple transmission components can form a circle. The top plate 302 is located above all the supporting plates 102 and can be in direct contact with the hydraulic component. The multiple top plates 302 are slidably connected, and there are dynamic seals between the multiple top plates 302; the ball screw 303 is vertically arranged on the frame 100, the ball screw 303 is rotatably connected to the frame 100, the ball screw 303 is located inside the pressing cylinder 101, and the ball screw 303 penetrates the inner wall of the pressing cylinder 101 along the vertical direction. The supporting plate 102, the top plate 302 and a pressing plate 301 in each disc, the ball screw 303 are respectively connected to the supporting plate 102, the top plate 302 and the corresponding pressing plate 301 in a sliding manner in the vertical direction, and multiple ball nuts 304 are threadedly connected to the ball screw 303. The upper surfaces of the pressing plate 301 and the top plate 302 that are slidingly connected to the same ball screw 303 are respectively fixedly connected to a ball nut 304. The hydraulic component is in contact with the top plate 302, and the ball nut 304 on the top plate 302 drives the ball screw 303 to rotate by pushing the top plate 302. When the ball screw 303 rotates, the corresponding pressing plate 301 can be driven to move in the vertical direction through the ball nut 304, so that the top plate 302 and the corresponding multiple pressing plates 301 can squeeze the corresponding oil at the same time to shorten the working stroke of the hydraulic component.

[0030] Specifically, each disc includes two pressing plates 301 , and the two pressing plates 301 are located on both sides of the axis of the pressing cylinder 101 in the horizontal direction. The number of the ball screw 303 and the top plate 302 is also two.

[0031] In this embodiment, the hydraulic assembly includes a hydraulic cylinder 306 and a push plate 307. The hydraulic cylinder 306 is fixedly mounted on the frame 100, and the hydraulic cylinder 306 is retracted in the vertical direction. The push plate 307 is fixedly mounted on the hydraulic cylinder 306, and the axis of the push plate 307 extends in the vertical direction. The push plate 307 is provided with through holes 308 of the same number as the ball screw 303. Each through hole 308 is coaxial with a ball screw 303, and the diameter of the through hole 308 is larger than the diameter of the ball nut 304. A vertically placed disc spring 309 is provided on one side of each top plate 302 away from the supporting plate 102. The push plate 307 can abut against the disc spring 309. The disc spring 309 is provided. When the hydraulic cylinder 306 pushes the push plate 307 to abut against the disc spring 309, the push plate 307 pushes the top plate 302 through the disc spring 309 to squeeze the corresponding oil. When the driving assembly drives one of the ball screws 303 to rotate, the ball screw 303 will drive the corresponding top plate 302 and the pressure plate 301 to further squeeze the corresponding oil through the ball nut 304 thereon. At this time, the distance between the top plate 302 and the push plate 307 increases, but the push plate 307 still applies a certain force to the top plate 302 through the disc spring 309. Compared with the top plate 302 and the pressure plate 301 that have not moved, the pressure exerted by the push plate 307 at this time increases, and it can be better squeezed. As the driving assembly drives the two ball screws 303 in turn, the oil on the supporting plate 102 can be squeezed in batches, and the squeezing effect is better.

[0032] In this embodiment, a first cavity 105 is provided on the frame 100, and the first cavity 105 is located below the pressing cylinder 101. The bottom end of the ball screw 303 is located in the first cavity 105. Each ball screw 303 is sleeved with a first gear 310, and the first gear 310 is located in the first cavity 105. The first gear 310 is fixedly connected to the ball screw 303; the driving component includes a moving shell 311, a motor 312 and an incomplete gear 313. The moving shell 311 is slidably arranged in the first cavity 105 along the horizontal direction, the motor 312 is arranged in the moving shell 311, and the incomplete gear 313 is fixedly installed on the output shaft of the motor 312. The incomplete gear 313 can mesh with multiple first gears 310 in sequence. The motor 312 drives the multiple first gears 310 to rotate through the incomplete gears 313, and the multiple first gears 310 can rotate through the corresponding ball screws 303, thereby realizing further squeezing of local oil on the supporting plate 102.

[0033] The cam 314 is a vertically rotatable device that is configured to move the cam 314 upwards and downwards, and the cam 314 ..., and the cam 314 is configured to move the cam 314 upwards, and the cam 314 is configured to move the cam 314 upwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 314 is configured to move the cam 314 downwards, and the cam 31 The wheels are rotatably connected, the inner circumference of the first wheel is provided with a ratchet, and the outer circumference of the second wheel is sleeved with a pawl, which can be engaged with the ratchet, and the second wheel can be slidably arranged on the ball screw 303 in the vertical direction, so that the ball screw 303 rotates in one direction. During the squeezing process, the pressing plate 301 can drive the ball nut 304 to move downward on the ball screw 303 when squeezing the oil. At this time, the ball screw 303 can rotate relative to the ball nut 304, but the ball screw 303 cannot be reversed, that is, when the hydraulic cylinder 306 loses the pressure on the top plate 302, the pressure of the top plate 302 and the pressing plate 301 on the oil remains unchanged, and the pedal 314 is stepped on, and the pedal 314 can drive the ratchet mechanism 315 to slide downward on the ball screw 303. After the ratchet mechanism 315 is disengaged from the ball screw 303, the ball screw 303 can rotate in both directions, which is convenient for taking out the oil cake after squeezing the oil.

[0034] In this embodiment, a plurality of telescopic cylinders penetrating the supporting plate 102 are fixedly mounted on the supporting plate 102, the number of the telescopic cylinders is consistent with the number of the ball screw 303, and the telescopic cylinders are arranged corresponding to the ball screw 303, the telescopic cylinders can be sleeved on the ball screw 303, each telescopic cylinder includes a first cylinder 106, a second cylinder 107, a spring 108 and a guide column 109, the first cylinder 106 is fixedly mounted on the supporting plate 102, the second cylinder 107 is sleeved in the first cylinder 106, and the first cylinder 106 and the second cylinder 107 are slidably connected, the second cylinder 107 can be sleeved on the ball nut 304, and the second cylinder 107 and the ball nut 304 sliding connection; a mounting cavity 110 is provided inside the first tube 106, the mounting cavity 110 is annular, the mounting cavity 110 is coaxial with the first tube 106, the spring 108 is arranged in the mounting cavity 110, the inner wall of the first tube 106 is provided with a guide groove 111 along the vertical direction, the guide groove 111 is connected with the mounting cavity 110, one end of the guide column 109 is fixedly installed on the outer peripheral surface of the second tube 107, and the guide column 109 is slidably arranged in the guide groove 111, the end of the guide column 109 away from the second tube 107 is arranged in the mounting cavity 110, the guide column 109 is connected with the spring 108, and the guide column 109 is located above the spring 108. When the pressing plate 301 squeezes the oil, the second cylinder 107 abuts against the pressing plate 301, and the squeezed oil will not flow out from between the ball screw 303 and the ball nut 304. At the same time, the oil will not contact the ball screw 303, ensuring the smoothness of the ball nut 304 on the ball screw 303.

[0035] In this embodiment, the cold pressing device for camellia oil also includes a positioning mechanism, and a plurality of positioning mechanisms are provided. The plurality of positioning mechanisms are evenly arranged around the circumference of the pressing cylinder 101, and each positioning mechanism includes a clamping block 201 and a connecting plate 202. A plurality of clamping blocks 201 are provided, and the plurality of clamping blocks 201 penetrate the circumference of the pressing cylinder 101 in the horizontal direction, and the clamping blocks 201 are slidably connected to the pressing cylinder 101, and there is a dynamic seal between the clamping blocks 201 and the pressing cylinder 101. The plurality of clamping blocks 201 are arranged in the vertical direction, and a clamping block 201 is provided between two adjacent supporting plates 102, and each clamping block 201 can abut against the lower end of the corresponding supporting plate 102 above it, and the spacing between any two adjacent clamping blocks 201 among the plurality of clamping blocks 201 is consistent, and the same amount of material is placed on each supporting plate 102. After the oil is squeezed, the corresponding pressing plate 301 moves the same distance to make the degree of squeezing of the oil consistent; a plurality of through grooves are provided on the circumferential surface of the pressing cylinder 101, and each block 201 is slidably arranged in the corresponding through groove along the radial direction of the pressing cylinder 101, and a plurality of positioning grooves 204 are provided on the inner wall of the pressing cylinder 101, and each positioning groove 204 is connected with a through groove, and a protrusion 203 is provided at one end of the block 201 extending into the pressing cylinder 101, and the protrusion 203 is slidably connected with the corresponding positioning groove 204, and when the protrusion 203 slides in the positioning groove 204, the end of the block 201 extending into the pressing cylinder 101 is completely placed in the through groove, and at this time, the block 201 is no longer abutted against the lower end of the supporting plate 102, and the supporting plate 102 can slide arbitrarily in the vertical direction in the pressing cylinder 101.

[0036] The pressure plate 301 is slidably connected to the clamping block 201. A number of grooves 205 equal to the number of the positioning mechanisms are provided on the circumferential surface of each pressure plate 301. The grooves 205 penetrate the pressure plate 301 in the vertical direction. The clamping block 201 is slidably connected to the pressure plate 301 via the grooves 205. The bottom surface of the clamping block 201 is in sliding contact with the adjacent supporting plate 102 therebelow, so that the pressure plate 301 can fully contact the oil on the supporting plate 102.

[0037] The connecting plate 202 is connected to a plurality of clamping blocks 201 at the same time. Each clamping block 201 is provided with a clamping hole, which penetrates the clamping block 201 along a first direction, and the first direction is perpendicular to the direction in which the clamping block 201 slides on the pressing cylinder 101. A clamping column is provided on the connecting plate 202, and the clamping column can be slidably inserted into the clamping hole along the first direction. A clamping hoop is provided on the outside of the pressing cylinder 101, and the inner surface of the clamping hoop can be slidably connected with a side of the connecting plate 202 in the plurality of positioning mechanisms away from the pressing cylinder 101, so as to limit the connection. The plate 202 moves in the radial direction of the pressing cylinder 101, and a plurality of rotating plates 206 are rotatably arranged on the side of each connecting plate 202 away from the pressing cylinder 101. The plurality of rotating plates 206 are evenly distributed on the connecting plate 202 along the vertical direction, and the rotation axis of each rotating plate 206 extends along the horizontal direction. The bottom end of the rotating plate 206 is rotatably arranged on the connecting plate 202, and the top end of the rotating plate 206 can be rotated in the direction away from the pressing cylinder 101, so as to support the clamp and position the clamp.

[0038] In this embodiment, a plurality of groups of oil drain grooves 207 are provided on the circumferential surface of the pressing cylinder 101 and penetrate the pressing cylinder 101 in the radial direction thereof. The plurality of groups of oil drain grooves 207 are arranged in the vertical direction, and each group of oil drain grooves 207 is connected to an oil storage cavity 104. After the oil squeezed out of the oil material enters the oil storage cavity 104, it will be discharged along the oil drain grooves 207.

[0039] In this embodiment, a push plate 208 is provided on the frame 100, and the push plate 208 is slidably arranged on the frame 100 in the horizontal direction. An oil collecting groove 210 is provided on the push plate 208, and the pressing cylinder 101 is arranged in the oil collecting groove 210. The size of the oil collecting groove 210 is larger than the diameter of the pressing cylinder 101; a bottom plate 211 that moves in the vertical direction is provided on the frame 100, and the bottom plate 211 is located in the oil collecting groove 210. The pressing cylinder 101 is sleeved on the bottom plate 211. The circumferential surface of the bottom plate 211 is slidably connected with the inner wall of the pressing cylinder 101, and a dynamic seal is formed between the bottom plate 211 and the pressing cylinder 101. The bottom plate 211 is located below the lowest supporting plate 102, and a plurality of ball screws are provided. The rod 303 passes through the bottom plate 211 and can be threadedly connected to the bottom plate 211. When the bottom plate 211 is located in the oil collecting tank 210, the bottom plate 211 and the ball screw 303 are no longer threadedly connected. A hydraulic push rod 305 is provided in the movable shell 311. The hydraulic push rod 305 abuts against the bottom plate 211, and can push the bottom plate 211 to slide in the pressing cylinder 101. The bottom plate 211 can also push the supporting plate 102, oil cake, pressing plate 301 and top plate 302 in the pressing cylinder 101 to slide out of the pressing cylinder 101; an oil collecting box 209 is also provided on the frame 100. The oil collecting box 209 is located below the oil collecting tank 210, and the oil in the oil collecting tank 210 can flow into the oil collecting box 209.

[0040] The working principle of the cold pressing device for camellia oil provided in the above embodiment is: When using it for the first time, first push the push plate 208 to move it out from directly under the push plate 307, then place the pressing cylinder 101 in the oil collecting groove 210 on the push plate 208, then connect the clamping column on the connecting plate 202 to the clamping hole on the clamping block 201 in the same vertical column, pull the connecting plate 202 to make the clamping block 201 slide in the through groove, and make the protrusion 203 on the clamping block 201 slide into the positioning groove 204, similarly, pull the protrusions 203 on all the clamping blocks 201 into the positioning groove 204, at this time, the supporting plate 102 is not hindered when sliding in the pressing cylinder 101, and then the connecting plate 202 and the corresponding clamping block 201 are separated.

[0041] Then, the bottom plate 211 is sleeved on the multiple ball screws 303, and the bottom plate 211 is pushed. The bottom plate 211 drives the multiple ball screws 303 to rotate, and the bottom plate 211 slides in the pressing cylinder 101. A supporting plate 102 is placed on the bottom plate 211, and the supporting plate 102 is pushed so that the supporting plate 102 reaches a position at a specified distance from the end face of the pressing cylinder 101. Then, a preset amount of oil is placed on the supporting plate 102 so that the oil is flush with the end face of the pressing cylinder 101. Then, multiple pressing plates 301 in a disc are placed on the oil, and the ball nuts 304 on the pressing plates 301 are coaxial with the corresponding ball screws 303. Then, all the pressing plates 301 are pressed at the same time so that the ball nuts 304 on the multiple pressing plates 301 are screwed into the corresponding ball screws 303 at the same time.

[0042] Then place a supporting plate 102 on the pressing plate 301, push the pressing plate 301 so that the supporting plate 102 reaches the specified distance from the end face of the pressing cylinder 101, and then put in a preset amount of oil, and so on, place all the supporting plates 102, oil and pressing plates 301 in the pressing cylinder 101. When the last oil is placed on the supporting plate 102, place the top plate 302 on the supporting plate 102, so that the ball nut 304 on the top plate 302 is threadedly connected with the corresponding ball screw 303.

[0043] Then, push the connecting plate 202 to drive the corresponding block 201 to slide in the through groove, and the block 201 slides between the two corresponding supporting plates 102. At this time, the bottom plate 211 is located in the oil collecting groove 210 and is disconnected from the threaded connection with the ball screw 303. The rotation of the ball screw 303 will not affect the bottom plate 211. Then, multiple clamps are sequentially mounted on multiple connecting plates 202, and the clamps are located on the corresponding rotating plates 206.

[0044] The push plate 208 is then pushed so that the pressing cylinder 101 is located directly below the push plate 307, and the hydraulic cylinder 306 is started. The hydraulic cylinder 306 drives the push plate 307 to move downward, and the ball screw 303 and the ball nut 304 on the top plate 302 enter the through hole 308 at the corresponding position on the push plate 307. Then the push plate 307 abuts against the top plate 302, and the push plate 307 pushes the top plate 302 to slide downward in the pressing cylinder 101, and the top plate 302 pushes the oil below it to move. At this time, due to the support of the supporting plate 102 by the block 201, the moving oil will not push the supporting plate 102 to move in the pressing cylinder 101, and the oil is squeezed, and the oil squeezed out of the oil falls into the oil storage cavity 104 below it through the filter hole 103 on the supporting plate 102, that is, on the pressing plate 301 below.

[0045] When the top plate 302 slides downward in the pressing cylinder 101, the ball nut 304 thereon drives the corresponding ball screw 303 to rotate. The rotation of the ball screw 303 will drive all the ball nuts 304 thereon to rotate. The rotation of the ball nut 304 will drive the corresponding pressing plate 301 to move downward, thereby squeezing the oil. The squeezed oil is discharged from the oil drain groove 207 in the corresponding oil storage cavity 104, and then flows into the oil collecting groove 210. The oil in the oil collecting groove 210 is gathered in the oil collecting box 209.

[0046] During the operation of the hydraulic cylinder 306, the motor 312 is started, and the motor 312 drives the incomplete gear 313 to rotate. The incomplete gear 313 sequentially meshes with the first gear 310, driving the corresponding ball screw 303 to further rotate relative to other ball screws 303. The corresponding pressing plate 301 in one disc presses the oil material more than other pressing plates 301, and the misaligned distance of the pressing plates 301 in the same disc is less than the length of the pressing plate 301 in the vertical direction. The pressing plate 301 and the top plate 302 corresponding to the ball screw 303 squeeze the material more, and the pressure of the hydraulic cylinder 306 on other pressing plates 301 and top plates 302 increases, which can effectively increase the oil pressing efficiency and pressing quality.

[0047] When the squeezing is completed, the hydraulic cylinder 306 is controlled to drive the push plate 307 away from the squeezing cylinder 101, and then the motor 312 is controlled to drive the incomplete gear 313 to disengage from the first gear 310, then the clamp is taken out, and the connecting plate 202 is pulled, and the connecting plate 202 drives the corresponding block 201 to slide until the protrusion 203 slides into the positioning groove 204; then the pedal 314 is pressed, and the pedal 314 drives the first wheel and the second wheel to move downward, and the second wheel gradually disengages from the ball screw 303, and the ball screw 303 after disengaging from the second wheel can rotate in both directions.

[0048] Then pull the push plate 208 to move the pressing cylinder 101 out from directly under the push plate 307, start the hydraulic push rod 305, and the hydraulic push rod 305 pushes the bottom plate 211 to move upward in the pressing cylinder 101. The bottom plate 211 is threadedly connected with the ball screw 303 again, and the moving bottom plate 211 pushes the supporting plate 102 and the pressing plate 301 to move upward. The supporting plate 102 drives the oil cake to move upward, and the pressing plate 301 drives the oil in the oil storage chamber 104 to move upward. The residual oil in the oil storage chamber 104 is discharged when passing through the oil drain groove 207; when the top plate 302, the pressing plate 301, the oil cake, and the supporting plate 102 reach the top of the pressing cylinder 101 in turn, they are taken out in turn, and then the next pressing is carried out as needed.

[0049] The present invention also provides a cold pressing method for camellia oil, comprising the following steps: S1, put the supporting plates 102 into the pressing cylinder 101 in sequence, and place a preset amount of oil on the supporting plate 102 for each supporting plate 102, and then place a disc on the oil; place the first supporting plate 102 on the bottom plate 211 in the pressing cylinder 101, and then place a preset amount of oil on the supporting plate 102, the height of the oil is lower than the height of the second cylinder 107, and the oil does not contact the ball screw 303, and then place the pressing plate 301 correspondingly on the oil, the pressing plate 301 abuts against the second cylinder 107, and the ball nut 304 on the pressing plate 301 is correspondingly sleeved on a ball screw 303, and multiple pressing plates 301 form a complete circle to completely cover the oil.

[0050] S2, continue to place a supporting plate 102, then put a preset amount of oil, then put the disc, and so on, until the last supporting plate 102 is put on, and finally put a preset amount of oil; then place another supporting plate 102 on the pressing plate 301, and then put a preset amount of oil, and then press it with the pressing plate 301, place all the supporting plates 102 on, and finally press it with the top plate 302, and keep pressing downwards when placing the material, so that the bottom plate 211 moves to the oil collecting tank 210.

[0051] S3, start the hydraulic assembly, the hydraulic assembly squeezes the oil; after the preparation work is completed, start the hydraulic cylinder 306, the hydraulic cylinder 306 drives the push plate 307 to move downward and pushes the top plate 302 to slide in the pressing cylinder 101, the top plate 302 squeezes the oil below it to compress, and the top plate 302 drives the pressure plate 301 to squeeze the oil at the same time through the cooperation of the ball screw 303 and the ball nut 304, and the squeezed oil falls into the oil storage chamber 104.

[0052] S4, when executing S3, the driving assembly is started at the same time, and the driving assembly assists the hydraulic assembly in squeezing the oil through the transmission assembly. While squeezing the oil, the push plate 208 starts the motor 312 to drive the incomplete gear 313 to rotate, and the incomplete gear 313 drives the plurality of first gears 310 to rotate in sequence by cooperating with the first gear 310. The rotating first gear 310 drives the corresponding ball screw 303 to rotate, and the rotating ball screw 303 drives the corresponding pressing plate 301 and the top plate 302 to further squeeze the oil.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A cold pressing device for camellia oil, characterized in that: include: A frame, a pressing cylinder, a supporting plate and an extrusion mechanism. The frame is fixedly arranged, the pressing cylinder is vertically arranged on the frame, a plurality of supporting plates are provided, and the plurality of supporting plates can be slidably arranged in the pressing cylinder along the vertical direction. The plurality of supporting plates are arranged in sequence in the vertical direction in the pressing cylinder, and a fixed spacing is provided between two adjacent supporting plates, and the spacing between every two adjacent supporting plates is consistent. A filter hole penetrating through the supporting plate in the vertical direction is provided on each supporting plate, and an oil storage cavity is provided under each supporting plate; the extrusion mechanism includes a disc, a transmission assembly, a hydraulic assembly and a drive assembly. A plurality of discs are provided, and the plurality of discs are slidably arranged in the pressing cylinder along the vertical direction. The circumferential surface of the disc is slidably connected to the pressing cylinder, and each disc is located between two adjacent supporting plates, the oil is located on the supporting plates and below the corresponding disc, each disc includes multiple pressing plates, and the multiple pressing plates enclose a complete circle. There are multiple transmission components, and each transmission component can control multiple discs or one of the pressing plates in each disc to slide in the pressing cylinder along the vertical direction at the same time. The hydraulic component is arranged on the frame and located above the pressing cylinder, and is used to control the multiple discs to slide in the pressing cylinder along the vertical direction at the same time through the transmission component; the driving component is used to control the multiple transmission components to drive the corresponding pressing plates to move downward in sequence.

2. A cold pressing device for camellia oil according to claim 1, characterized in that: The number of transmission components is consistent with the number of pressure plates in each disc. Each transmission component includes a top plate, a ball screw and multiple ball nuts. The top plate is slidably arranged in the pressing cylinder along the vertical direction. The top plate is fan-shaped, and the arc surface of the top plate is slidably connected to the inner wall of the pressing cylinder. Multiple top plates in multiple transmission components can form a circle. The top plate is located above all supporting plates and can directly contact the hydraulic component; the ball screw is vertically arranged on the frame, the ball screw is rotatably connected to the frame, the ball screw is located inside the pressing cylinder, and the ball screw passes through the supporting plate, the top plate and a pressure plate in each disc along the vertical direction. The ball screw is respectively slidably connected to the supporting plate, the top plate and the corresponding pressure plate in the vertical direction. Multiple ball nuts are threadedly connected to the ball screw, and the upper surfaces of the pressure plate and the top plate slidably connected to the same ball screw are respectively fixedly connected to a ball nut.

3. A cold pressing device for camellia oil according to claim 2, characterized in that: The hydraulic assembly includes a hydraulic cylinder and a push plate. The hydraulic cylinder is fixedly mounted on the frame and extends and retracts in the vertical direction. The push plate is fixedly mounted on the hydraulic cylinder and the axis of the push plate extends in the vertical direction. The push plate is provided with through holes having the same number as the ball screw. Each through hole is coaxial with a ball screw, and the diameter of the through hole is larger than the diameter of the ball nut. A vertically placed disc spring is provided on one side of each top plate away from the support plate, and the push plate can abut against the disc spring.

4. A cold pressing device for camellia oil according to claim 2, characterized in that: A first cavity is provided on the frame, and the first cavity is located below the pressing cylinder. The bottom end of the ball screw is located in the first cavity. A first gear is sleeved on each ball screw, and the first gear is located in the first cavity. The first gear is fixedly connected to the ball screw. The driving assembly includes a moving shell, a motor and an incomplete gear. The moving shell is horizontally slidably arranged in the first cavity, the motor is arranged in the moving shell, and the incomplete gear is fixedly installed on the output shaft of the motor. The incomplete gear can mesh with multiple first gears in sequence.

5. A cold pressing device for camellia oil according to claim 4, characterized in that: A pedal is provided in the moving shell for sliding in the vertical direction, one end of the pedal penetrates the moving shell and the frame in the horizontal direction and is slidably connected with the moving shell and the frame, a spring is provided under the pedal, the spring expands and contracts in the vertical direction, and its two ends are respectively connected with the pedal and the moving shell; a ratchet mechanism with the same number as the ball screw is fixedly installed at one end of the pedal located in the moving shell, each ratchet mechanism corresponds to a ball screw, and the ratchet mechanism can be sleeved on the corresponding ball screw to control the unidirectional rotation of the ball screw.

6. A cold pressing device for camellia oil according to claim 2, characterized in that: A plurality of telescopic cylinders penetrating the supporting plate are fixedly mounted on the supporting plate, the number of the telescopic cylinders is consistent with the number of the ball screws, and the telescopic cylinders and the ball screws are arranged correspondingly, and the telescopic cylinders can be sleeved on the ball screws.

7. The cold pressing device for camellia oil according to claim 1, characterized in that: It also includes a positioning mechanism, which is provided with multiple positioning mechanisms, and the multiple positioning mechanisms are evenly arranged around the circumference of the pressing cylinder. Each positioning mechanism includes a clamping block and a connecting plate. There are multiple clamping blocks, and the multiple clamping blocks penetrate the circumference of the pressing cylinder in the horizontal direction, and the clamping blocks are slidably connected to the pressing cylinder. The multiple clamping blocks are arranged in the vertical direction, and a clamping block is arranged between two adjacent supporting plates, and each clamping block can abut against the lower end of the corresponding supporting plate above it, the pressing plate is slidably connected to the clamping block, and the connecting plate is connected to the multiple clamping blocks at the same time. A clamp is provided on the outside of the pressing cylinder, and the inner surface of the clamp can be slidably connected to a side of the connecting plate in the multiple positioning mechanisms away from the pressing cylinder, so as to limit the movement of the connecting plate along the radial direction of the pressing cylinder.

8. The cold pressing device for camellia oil according to claim 1, characterized in that: The circumferential surface of the pressing cylinder is provided with a plurality of groups of oil drain grooves penetrating the pressing cylinder in the radial direction thereof, the plurality of groups of oil drain grooves are arranged in the vertical direction, and each group of oil drain grooves is connected with an oil storage cavity.

9. The cold pressing device for camellia oil according to claim 1, characterized in that: A push plate is provided on the frame, which is slidably arranged on the frame in a horizontal direction, and an oil collecting groove is provided on the push plate. The pressing cylinder is arranged in the oil collecting groove, and the size of the oil collecting groove is larger than the diameter of the pressing cylinder; a bottom plate which moves in a vertical direction is provided on the frame, the bottom plate is located in the oil collecting groove, and the pressing cylinder is sleeved on the bottom plate, the peripheral surface of the bottom plate is slidably connected to the inner wall of the pressing cylinder, and a dynamic seal is formed between the bottom plate and the pressing cylinder, the bottom plate is located under the lowest supporting plate, and a plurality of ball screws penetrate the bottom plate and can be threadedly connected to the bottom plate.

10. A cold pressing method for camellia oil, characterized in that: A cold pressing device for camellia oil according to any one of claims 1 to 9, comprising the following steps: S1, placing the supporting plates into the pressing cylinder one by one, placing a preset amount of oil on each supporting plate, and then placing a disc on the oil; S2, continue to put a support plate, then put a preset amount of oil, then put a disc, and so on, until the last support plate is put on, and finally put a preset amount of oil; S3, start the hydraulic assembly, and the hydraulic assembly squeezes the oil; S4, when executing S3, the driving component is started at the same time, and the driving component assists the hydraulic component in squeezing oil through the transmission component.

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