CN112873959B - Oil extraction device and soybean oil processing production are with integrative device that extracts oil of breakage - Google Patents

Abstract

The invention discloses an oil pressing device.A pressing end of a pressing device moves sequentially to form a first stroke and a second stroke, and at the stage of the first stroke, the pressing end of the pressing device can drive a lower pressure plate to move downwards in a position direction close to the lower pressure plate and drive a grinding disc to rotate through a rotary transmission device, so that materials on the grinding disc are pressed in a rotating state; in the second stroke stage, when the pressing end of the pressing device moves to drive the grinding disc to rotate until the sliding part of the grinding disc is staggered with the supporting part, the grinding disc can move downwards relative to the bin body. The invention also discloses a crushing and oil pressing integrated device and a soybean oil discharging and pressing device for soybean oil processing production. The invention has the advantages of improving the separation degree of oil residue, improving the oil output quality and having strong flowing water property in the oil pressing process.

Description

Oil extraction device and soybean oil processing production are with integrative device that extracts oil of breakage

Technical Field

The invention relates to the technical field of soybean oil processing, in particular to an oil pressing device and a crushing and oil pressing integrated device for soybean oil processing production.

Background

The oil pressing device is one of the core devices for processing and producing soybean oil, and the advantages and disadvantages of oil pressing efficiency, discharging quality and oil outlet purity are key factors influencing the quality and the cost of finished products.

At present, the oil press device for industrial processing production in the prior art mainly adopts screw oil press device, mainly includes screw rod, pressing thorax, oil-out, slag notch, feed inlet, and the material that will press oil through the feed inlet drops into to pressing the thorax, rotates under the screw rod, realizes squeezing and removing of material, and the crude oil that obtains after squeezing flows from the oil-out, and the waste residue that produces after squeezing flows from the slag notch.

According to the mode of oil residue separation, including continuous oil residue separation oil press device, concentrate the slagging-off oil press device, continuous oil residue separation oil press device is like the terminal that presses the thorax, the oil-out is located the lower extreme of thorax as the single spiral vertical oil press that CN102990964B disclosed, the novel soybean oil press of a disclosure of CN 208392727U-one, and the slag notch all is located the oil-out of thorax, and crude oil flows from the oil-out of the lower extreme of thorax after sieving, and the waste residue falls from the slag notch through the rotatory transport of screw rod to the end of thorax. The centralized deslagging oil press device is different from the oil press in oil residue modes, namely, crude oil and waste residue in pressing are firstly centralized in a press chamber, then the crude oil is filtered through sieving, and the waste residue accumulated in the press chamber is centralized and treated.

The prior art has the following technical problems in the using process: although crude oil and waste residue are separated through the oil outlet, the material is pressed in the barrel all the time, in order to ensure that the waste residue can pass through the clearance between the barrel and the screw rod and ensure that the screw rod can normally rotate and is not easy to influence transmission due to excessive friction, the clearance between the screw rod and the barrel is not easy to be too small, so that the waste residue discharged from the slag outlet is incompletely pressed and can still carry part of oil liquid mixed in the waste residue, and the crude oil and the waste residue are required to be reworked for secondary operation or directly discarded, such as a raw press disclosed by CN208324306U, a waste residue collecting device of an oil press disclosed by CN203381229U and the like; the oil press disclosed in CN103660346B has an oil baffle ring at the slag outlet, but the existence of the oil baffle ring will definitely affect the blanking of the waste slag, and in addition, the oil baffle ring will not have a good separation effect on the oil mixed in the waste slag. Secondly, in order to guarantee that the crude oil normally passes through the screen cloth blanking and is not blocked by the waste residue, the mesh of the screen cloth is not easy to be too small, so, after the mutual extrusion action of the screw and the barrel, impurities and residues still exist in the obtained crude oil, and further separation treatment is needed. In addition, the continuous squeezing production of soybean is carried out on a large scale in industry, the material is directly squeezed, the oil squeezing device is used for squeezing for a long time, the work heavy load is large, the device is easy to wear seriously relatively, and the processing efficiency is influenced.

Disclosure of Invention

The invention aims to solve the technical problem of how to provide an oil pressing device and a crushing and oil pressing integrated device for soybean oil processing production, which improve the oil residue separation degree and the oil outlet quality and have strong flowing water property in an oil pressing process.

The invention solves the technical problems through the following technical means: the oil press device comprises a screw oil press device and a secondary oil press device, wherein the secondary oil press device is used for performing secondary oil press treatment on waste residues obtained by the screw oil press device;

the secondary extrusion oil pressing device comprises a pressing device, a pressing plate, a grinding disc, an extrusion bin, a rotary transmission device and a bottom supporting device; the extrusion bin comprises a bin body which is hollow inside and is provided with an opening at the bottom; the lower millstone is positioned above the millstone; the grinding disc comprises a sliding part, and the bin body comprises a supporting part; the sliding part can be supported on the supporting part, and the bottom supporting device is supported at the bottom of the grinding disc;

the downward pressing end movement of the downward pressing device comprises a first stroke and a second stroke which are sequentially performed, in the first stroke stage, the downward pressing end downward pressing movement of the downward pressing device can drive the lower pressing disc to move downwards in the direction close to the lower pressing disc, the rotary transmission device drives the lower pressing disc to rotate, and materials on the grinding disc are pressed in a rotating state; in the second stroke stage, when the pressing end of the pressing device moves to drive the grinding disc to rotate until the sliding part of the grinding disc is staggered with the supporting part, the grinding disc can move downwards relative to the bin body.

Preferably, a section of rack structure is arranged at the pressing end of the pressing device, and the rotary transmission device comprises an extruded oil transmission gear, an extruded oil transmission gear rotating shaft, a first chain transmission device, a first extruded oil conical gear, a second extruded oil conical gear, a first extruded oil rotating shaft, a second chain transmission device and a third extruded oil rotating shaft;

the first pressed oil conical gear and the second pressed oil conical gear are respectively connected to the first pressed oil rotating shaft and the second pressed oil rotating shaft and are meshed with each other; the first oil squeezing rotating shaft and the oil squeezing transmission gear rotating shaft are driven by the first chain type transmission device; the third extrusion oil pressing rotating shaft can drive the movable grinding disc to rotate, and the third extrusion oil pressing rotating shaft and the second extrusion oil pressing rotating shaft are driven through the second chain type transmission device.

Preferably, the lower pressing end is connected with the lower pressing disc through a connecting rod; the connecting rod is provided with a guide hole which is vertically guided and has an upward opening, the opening end of the guide hole is rotatably matched with a stop block, and the lower end of the rack structure extends into the guide hole; a sliding limiting block is connected in the guide hole, and the upward movement of the rack structure can cause the top surface of the bottom of the rack structure to be in contact with the bottom surface of the sliding limiting block; a limiting notch is formed in the middle section of the rack structure, and the downward pressing elastic piece is assembled to enable the upper surface and the lower surface of the stop block to be in contact with the inner top surface of the limiting notch and the inner bottom surface of the limiting notch respectively;

the pressing end of the pressing device of the contact intermittent linkage device moves downwards to be in contact with the contact intermittent linkage device, and the contact intermittent linkage device is driven to drive the stop block to rotate to be separated from the limiting notch;

and when the stop block rotates to be separated from the limit notch, the connecting rod is limited by the brake limit block and enters the second stroke from the first stroke.

Preferably, the guide hole is a blind hole.

Preferably, the contact intermittent linkage device comprises a swing arm, a transmission rod, a push rod and a swing arm reset elastic body; the linear guide rail is arranged on the bin body, one end of the swing arm is in running fit with the bin body, two ends of the conveying rod are respectively hinged with the middle section of the swing arm and one end of the ejector rod, and the ejector rod is in sliding fit with the linear guide rail; the lower pressing end is connected with an active block, and the active block moves downwards to be in contact with the other end of the swing arm to drive the swing arm to rotate so that the ejector rod moves to be in contact with the stop block and drives the stop block to rotate; the swing arm reset elastic body is assembled between the swing arm and the bin body.

Preferably, when the expression gear is an incomplete gear, the engagement with the rack structure occurs during a first stroke period. Thus, the present invention uses the incomplete gear as the active source. In the first stroke stage, the extrusion oil pressing transmission gear is meshed with the rack structure, the rack structure is fixed with the connecting rod, and in the whole movement process, the rack structure moves to drive the pressing end of the pressing device to move. The rack structure is driven to move downwards by the rotation of the oil squeezing transmission gear, the oil squeezing transmission gear is not meshed with the rack structure at the second stroke stage, and the oil squeezing transmission gear rotates while the rack structure is relatively fixed. This mode is compared above-mentioned mode and is appeared beating the tooth phenomenon easily, more is applicable to the manual rotation and extrudes the drive gear that extracts oil or the transmission cooperation condition of slow speed.

Preferably, the device also comprises a connecting rod, and the lower pressing end is connected with the lower pressing disc through the connecting rod; the lower pressing end further comprises a secondary lower pressing device, and the lower pressing end of the secondary lower pressing device is connected with the rack structure;

the pressing end pressing motion of the secondary pressing device occurs in the second stroke stage.

Preferably, the edge of the grinding disc is connected with a pressing block, the bin body is rotatably connected with a rotating connecting rod, the end part of the rotating connecting rod is hinged with the lower end of an opening connecting rod, the upper end of the opening connecting rod is hinged with an oil leakage port valve, the oil leakage port valve is in sliding fit with an oil leakage port, and the bin body elastic part is assembled to close the oil leakage port valve on the oil leakage port; the millstone can rotate to enable the pressing block to be in contact with the rotary connecting rod to drive the pressing block to rotate until the oil leakage opening valve moves to the oil leakage opening to be opened.

Preferably, the upper surface of the grinding disc is of a structure with the height gradually reduced from the center to two sides, a plurality of concentric annular grooves are formed in the upper surface of the grinding disc, and all the annular grooves are communicated with one another; and a notch is formed in the annular groove on the outermost side and is positioned above the oil leakage port or is flush with the oil leakage port.

Preferably, a first screen mesh is arranged at the bottom of a barrel of the screw oil press, a mesh belt conveyor is arranged at the bottom of the first screen mesh, a second screen mesh is formed on a mesh belt of the mesh belt conveyor, a guide plate is further arranged on the mesh belt conveyor, and crude oil filtered from the second screen mesh can flow out through the guide plate; and the waste residue remained on the second screen can be conveyed to the bin body of the extrusion bin.

The invention also discloses a crushing and oil pressing integrated device for soybean oil processing production based on the oil pressing device, and the crushing device is further provided, wherein a discharge hole of the crushing device is communicated with a feed inlet of the screw oil pressing device.

The invention also discloses a soybean lower oil squeezing device, which comprises a lower pressing device, a lower pressing disc, a grinding disc, a squeezing bin, a rotary transmission device and a bottom supporting device; the extrusion bin comprises a bin body which is hollow inside and is provided with an opening at the bottom; the lower millstone is positioned above the millstone; the grinding disc comprises a sliding part, and the bin body comprises a supporting part; the sliding part can be supported on the supporting part, and the bottom supporting device is supported at the bottom of the grinding disc;

the pressing end movement of the pressing device comprises a first stroke and a second stroke which are sequentially performed, in the first stroke stage, the pressing end pressing movement of the pressing device can drive the lower pressing plate to move downwards in the direction close to the lower pressing plate, the grinding disc is driven to rotate through the transmission of the rotary transmission device, and the materials on the grinding disc are squeezed to extract oil in the rotating state; in the second stroke stage, when the pressing end of the pressing device moves to drive the grinding disc to rotate until the sliding part of the grinding disc is staggered with the supporting part, the grinding disc can move downwards relative to the bin body.

The invention has the advantages that: firstly, the invention adopts a two-step squeezing combination mode of carrying out screw extrusion squeezing and then carrying out rotary pressing squeezing to squeeze crops, and can fully utilize the characteristics of continuous feeding and gradual pressurization by utilizing a reducing screw rod of the traditional screw oil squeezing device to ensure the stability of oil squeezing in the screw extrusion squeezing stage, and most of oil is discharged in the stage. Meanwhile, because the secondary extrusion oil pressing device is also arranged at the rear of the screw oil pressing device, and secondary oil pressing is carried out on waste residues flowing out of the screw oil pressing device, compared with the prior art, the screw oil pressing device allows a larger gap to exist between the tail end of the screw and the tail end of the barrel, so that the waste residues are conveniently discharged, the technical problem that crude oil flows out of the tail end of the barrel, namely a slag outlet, is not needed to be considered, crops can be incompletely squeezed at the stage, and the technical defects that waste residues are blocked, the normal rotation of the screw is influenced due to the undersize gap between the barrel and the screw, and the transmission is easily influenced by overlarge friction are greatly avoided; secondly, in the rotary pressing stage of the secondary extrusion oil pressing device, pressing oil and grinding disc rotation are cooperatively combined, so that waste residues can synchronously rotate under the extrusion action between a lower pressing disc and a grinding disc, and the pressing efficiency and the oil outlet effect are improved; thirdly, the secondary extrusion oil pressing device can realize rotary downward pressing and discharging of the pressed slag cake by utilizing downward pressing movement of the downward pressing end of the downward pressing device, on one hand, the process flow property of pressing and discharging is realized, the operation continuity is high, on the other hand, continuous multi-operation cooperation is realized through a single driving source of downward pressing movement of the downward pressing end, and the secondary extrusion oil pressing device is convenient for workers to operate and control; fourthly, as another key technical characteristic of the invention, when the downward pressing end of the downward pressing device moves to drive the millstone to rotate until the sliding part and the supporting part are staggered, the millstone can move downward relative to the bin body, so that the smooth running of the process flowing water of the pressing and blanking can be ensured; fifthly, the bottom supporting device is arranged at the bottom of the grinding disc, so that the stability of the grinding disc in a supported state is further improved.

Furthermore, the structure of the pressing end of the pressing device is matched with the contact intermittent linkage device, so that in the pressing movement process of the pressing end of the pressing device, during the first stroke, namely, the rotary pressing stage, the pressing motion of the pressing disc is linked with the rotary motion of the grinding disc to ensure the smooth operation of the rotary pressing, and during the second stroke, namely the blanking stage of the grinding disc, because the pressing process of the lower pressing disc and the grinding disc which are matched with each other is completed at the moment, on the other hand, the displacement of the lower pressing disc which can be actually pressed down is very small along with the formation of the slag cake, of course, at the initial point of the second stroke, if the contact area between the sliding part and the support part is small, the lower platen may move downwards and rotate with the grinding disc to a position where the sliding part and the support part are completely dislocated, and thus, the position stability of the grinding disc in the pressing stage may be insufficient. Therefore, in the process of the second stroke, the linkage of the lower pressing plate and the grinding disc is not necessarily required, namely the lower pressing end of the lower pressing device is pressed downwards only by rotating the grinding disc, and in the tail section of the first stroke, the technical effect that the grinding disc rotates and the lower pressing plate does not move when the second stroke is reached is realized by utilizing the cooperation of the contact intermittent linkage device and the structure of the lower pressing end of the invention, and the condition that a larger contact area still exists between the sliding part and the supporting part when the second stroke is reached can be met. In the stage that resets, because rack structure upward movement can cause the convex structure of rack structure's bottom to contact with the slip stopper, utilize the slip stopper to prescribe a limit to the displacement volume that rack structure resets alone, guarantee that spacing notch wherein can be relative with the dog again, satisfy the accurate nature that the dog resets.

Furthermore, in the rotation process of the grinding disc, after the pressing block is contacted with the rotary connecting rod, the higher end of the rotary connecting rod is driven to rotate downwards, the bin body elastic part deforms, and the oil leakage opening valve is driven to move downwards to the oil leakage opening to be opened through the transmission of the opening connecting rod, so that the squeezed oil flows out of the oil leakage opening. When the grinding disc is reset, the pressing block is separated from the rotary connecting rod, the bin body elastic piece is reset, and the valve of the oil leakage opening is driven to be closed on the oil leakage opening again. Therefore, the oil leakage port is in a closed state when not being squeezed, and the opening only occurs in the squeezing process, so that the sealing performance of the bin body is improved.

Furthermore, because the upper surface of the grinding disc is of a structure with the height gradually reduced from the center to two sides, a plurality of concentric annular grooves are formed in the upper surface of the grinding disc, and all the annular grooves are communicated with each other. The annular groove in the outermost side is provided with a notch, and the notch is positioned above the oil leakage port or is flushed with the oil leakage port, so that the surface roughness of the grinding disc is improved, the squeezing efficiency is improved, and the oil can timely flow out.

Furthermore, the invention realizes that the screw oil press device can stop feeding the extrusion bin in a non-stop state during the pressing process of the extrusion bin, and the waste residue is temporarily stored in the first pipeline communicated between the first feeding hole and the tail end of the barrel of the screw oil press device, so that the influence of feeding in the stage on the pressing of the next batch of waste residue is avoided.

Furthermore, the first screen and the second screen are used for filtering the crude oil twice, so that the meshes of the first screen have larger apertures, and fine impurities and waste residues are prevented from blocking the first screen. The crude oil flows out through the guide plate after being filtered by the second screen, and impurities and waste residues are remained on the second screen and are conveyed to the bin body of the extrusion bin under the conveying action of the mesh belt conveyor.

Furthermore, the invention realizes that the mesh belt conveyor can stop feeding the extrusion bin under the state of no shutdown in the extrusion process of the extrusion bin, and the waste residue is temporarily stored in the second pipeline communicated between the second feed inlet and the mesh belt conveyor, thereby avoiding the influence of feeding in the stage on the extrusion of the next batch of waste residue.

Drawings

Fig. 1 is a schematic structural diagram of an oil press according to the present invention.

Fig. 2 is a schematic view of the internal structure of the extrusion bin of the secondary extrusion oil press device in the invention.

Fig. 3 is a schematic structural diagram of a secondary extrusion oil press device in the invention.

FIG. 4 is an enlarged view of a portion A of FIG. 2 according to the present invention.

FIG. 5 is a schematic view of the structure of the stopper of the present invention in a state of being retained in the retaining notch.

FIG. 6 is a schematic view of the stopper of the present invention in a state where the stopper is disengaged from the notch.

Fig. 7 is a schematic structural view of the pressing device in a pressed state according to the present invention.

FIG. 8 is an enlarged view of portion A of FIG. 7 according to the present invention.

Fig. 9 is a schematic structural view of the driving block in contact with the swing arm according to the present invention.

FIG. 10 is an enlarged view of portion A of FIG. 9 according to the present invention.

Fig. 11 is a schematic structural view of the first feed opening and the second feed opening of the pressing device of the present invention in a state that the pressing end is lifted and lowered.

Fig. 12 is a schematic structural view of the connecting rod and the rack structure in a synchronous motion state.

FIG. 13 is a schematic view of the stopper of the present invention rotated to a position just separated from the notch.

Fig. 14 is a schematic structural view of the secondary depressing device of the present invention in a state where the secondary depressing device is disposed on the piston rod of the depressing end of the depressing device.

Fig. 15 is a schematic view of the structure of the grinding disc of the present invention.

Fig. 16 is a schematic structural view of the oil drain opening valve closed in the oil drain opening state according to the present invention.

Fig. 17 is a schematic view of a bottom view structure of the third pressing oil axis with the grinding disc sleeved thereon.

Fig. 18 is a schematic structural view of the state that the grinding disc is sleeved on the third squeezing oil pressing rotating shaft in the invention.

Fig. 19 is a schematic cross-sectional structure view of the grinding disc and the bin body in the invention.

Fig. 20 is a schematic structural diagram of the screw oil expeller of the present invention.

Fig. 21 is a schematic structural view of the deflector in the installed state in the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Example 1

As shown in fig. 1-3, the present embodiment discloses an oil press apparatus, which includes a screw oil press apparatus 1 and a secondary oil press apparatus 2, wherein the secondary oil press apparatus 2 is used for performing a secondary oil press process on waste residue obtained by the screw oil press apparatus 1.

The secondary extrusion oil press device 2 comprises a pressing device 21, a pressing disc 22, a grinding disc 23, an extrusion bin 24, a rotary transmission device 25 and a bottom supporting device 26. The crush can 24 comprises a hollow interior open-bottomed cartridge body. An oil leakage port 2411 is also arranged on the bin body.

The lower pressure plate 22 and the grinding disc 23 can be limited in the chamber body of the extrusion chamber 24, and the lower pressure plate 22 is positioned above the grinding disc 23. The grinding disc 23 is provided with a sliding part 231, and the extrusion bin 24 is provided with a supporting part 2412 on the bin body. The sliding part 231 can be supported on the supporting part 2412, and the bottom supporting device 26 is supported on the bottom of the grinding disc 23.

The pressing end movement of the pressing device 21 comprises a first stroke and a second stroke which are sequentially performed, in the first stroke, the pressing end pressing movement of the pressing device 21 can drive the lower pressing disc 22 to move downwards in the direction close to the position of the lower pressing disc 22, the grinding disc 23 is driven to rotate through the rotary transmission device 25, and waste residues on the grinding disc 23 are pressed in a rotating state. In the second stroke, when the pressing end of the pressing device 21 moves to drive the grinding disc 23 to rotate until the sliding portion 231 is dislocated from the supporting portion 2412, the grinding disc 23 can move downward relative to the bin 241.

When the oil press device of the invention is used for pressing oil on crops such as soybean or peanut or other crops capable of pressing oil, firstly, the crops are put into the screw oil press device 1, under the rotation action of the screw with the reducing structure, the crops move from the initial end of the barrel to the tail end of the barrel and generate gradually increased pressure action with the inner wall of the barrel, the oil pressing on the crops is carried out, the pressed crude oil flows out from the crude oil outlet, and the waste residue generated in the pressing process flows out from the tail end of the barrel and then enters the pressing bin 24 of the secondary oil press device 2, namely, the first feed inlet of the pressing bin 24 is communicated with the tail end of the barrel, and particularly, the first feed inlet of the barrel is communicated through a pipeline, preferably, the tail end of the barrel is ensured to be positioned above the first feed inlet of the pressing bin 24, so that the waste residue flowing out from the tail end of the barrel can freely fall into the pressing bin 24 and is accumulated on the grinding disc 23, of course, it is also possible to provide a pump in the pipe, by which the slag is extracted into the pressing chamber 24. After the waste residue that falls into the storehouse body of extrusion storehouse 24 reaches predetermined scope volume or predetermined time range, through starting push-down device 21, push-down device 21's push-down end pushes down the motion in first stroke, drives down pressure disk 22 and moves towards the position direction that is close to lower pressure disk 22 downwards, drives rotary transmission device 25 simultaneously and rotates and causes mill 23 to rotate, and the waste residue on mill 23 carries out the secondary and squeezes under rotatory state, and the oil that the secondary squeezed the production flows out from oil leakage port 2411. The pressing end of the pressing device 21 continues to move in the second stroke, and drives the grinding disc 23 to rotate until the sliding part 231 and the supporting part 2412 are completely dislocated, the grinding disc 23 is in clearance fit with the bin body of the extrusion bin 24, can move relative to the bin body of the extrusion bin 24, moves the grinding disc 23 downwards, and after taking out the slag cake generated by rotary pressing, the grinding disc 23 is reset upwards to move, the pressing end of the pressing device 21 resets upwards to drive the grinding disc 23 to reset and rotate to be supported on the supporting part 2412 of the bin body 241 again, and is supported at the bottom of the grinding disc 23 again through the bottom supporting device 26, so that the primary pressing process is completed.

Compared with the prior art, the oil pressing device has the following technical effects: firstly, the invention adopts a two-step squeezing combination mode of carrying out screw extrusion squeezing and then carrying out rotary pressing squeezing to squeeze crops, and can fully utilize the characteristics of continuous feeding and gradual pressurization by utilizing a reducing screw rod of the traditional screw oil squeezing device 1 to ensure the stability of oil squeezing in the screw extrusion squeezing stage, and most of oil is discharged in the stage. Meanwhile, because the secondary extrusion oil extraction device 2 is also arranged at the rear of the screw oil extraction device 1 to secondarily extract oil from waste residues flowing out of the screw oil extraction device 1, the screw oil extraction device 1 allows a larger gap to exist between the tail end of the screw and the tail end of the barrel compared with the prior art, the waste residues are conveniently discharged, the technical problem that crude oil flows out of the tail end of the barrel, namely a slag outlet, is not needed to be avoided, crops can be incompletely squeezed at the stage, and the technical defects that the waste residues are blocked, the normal rotation of the screw is influenced due to the fact that the gap between the barrel and the screw is too small, and the transmission is easily influenced due to too large friction are greatly avoided; secondly, in the rotary pressing stage of the secondary extrusion oil pressing device 2, pressing oil and the grinding disc 23 are cooperatively combined, so that waste residues can synchronously rotate under the extrusion action between the lower pressing disc 22 and the grinding disc 23, and the pressing efficiency and the oil outlet effect are improved; thirdly, the secondary extrusion oil pressing device 2 can realize rotary pressing and discharging of the pressed slag cake by utilizing the pressing-down movement of the pressing-down end of the pressing-down device 21, on one hand, the process flow property of pressing and discharging is realized, the operation continuity is strong, on the other hand, the continuous multi-operation cooperation is realized through the single driving source of the pressing-down movement of the pressing-down end, and the operation and control of workers are facilitated; fourthly, as another key technical feature of the present invention, when the downward pressing end of the downward pressing device 21 moves to drive the grinding disc 23 to rotate until the sliding part 231 and the supporting part 2412 are dislocated, the grinding disc 23 can move downward relative to the bin 241 to ensure the smooth performance of the above-mentioned pressing and blanking process flow, by utilizing the structure of the mutual cooperation of the grinding disc 23 and the bin of the extrusion bin 24, the bin of the extrusion bin 24 can not only provide a supporting function for the grinding disc 23 in the rotating downward pressing stage but also does not influence the rotation of the grinding disc 23, but also can be mutually staggered with the grinding disc 23 in the blanking stage, so as to improve the guiding for the blanking of the grinding disc 23; fifthly, the stability of the grinding disc 23 in the supported state is further improved by arranging a bottom support device 26 at the bottom of the grinding disc 23.

As shown in fig. 3, in some embodiments, the bottom supporting device 26 includes a supporting cylinder 261, a supporting base 262, a supporting elastic body 263, and a supporting frame 264, the supporting base 262 is located above the supporting frame 264 to support the grinding disc 23, the supporting elastic body 263 is supported between the supporting base 262 and the supporting frame 264, and a piston rod end of the supporting cylinder 261 is fixedly connected to the supporting frame 264.

When the grinding disc 23 rotates to a position where the sliding portion 231 is dislocated from the supporting portion 2412, the grinding disc 23 moves downward out of the pressing chamber 24 under the action of gravity, and the supporting elastic body 263 is compressed, so that the supporting table 262 moves downward to a position of rebalancing.

When the grinding disc 23 needs to be reset upwards, the supporting oil cylinder 261 is started, the piston rod end of the supporting oil cylinder 261 moves upwards to drive the supporting frame 264 to move upwards, the supporting table 262 and the supporting elastic body 263 are driven to move upwards until the grinding disc 23 resets, and after the lower pressing device 21 resets, the grinding disc 23 is supported on the extrusion bin 24 again, the piston rod end of the supporting oil cylinder 261 resets downwards.

The supporting elastic body 263 of the present invention is preferably a compression spring, and both ends of the supporting elastic body are connected to or abutted against the supporting base 262 and the supporting frame 264, respectively. Other prior art resilient members are also possible.

In some embodiments, the bottom support device 26 may also be a support cylinder 261, and a rod end of the support cylinder 261 is in contact with the bottom of the grinding disc 23.

In some embodiments, support cylinder 261 is preferably a servo cylinder.

As shown in fig. 2 to 4, in some embodiments, a rack structure 211 is formed at the pressing end of the pressing device 21, and the rotary transmission device 25 includes a pressed oil transmission gear 251, a pressed oil transmission gear rotating shaft 252, a first chain transmission device, a first pressed oil conical gear 2531, a second pressed oil conical gear 2532, a first pressed oil rotating shaft 2541, a second pressed oil rotating shaft 2542, a second chain transmission device, and a third pressed oil rotating shaft 2543. The squeezing oil transmission gear 251 is fixedly connected to the squeezing oil transmission gear rotating shaft 252 and is engaged with the rack structure 211 at the pressing end of the pressing device 21, and the first squeezing oil conical gear 2531 and the second squeezing oil conical gear 2532 are respectively and fixedly connected to the first squeezing oil rotating shaft 2541 and the second squeezing oil rotating shaft 2542 and are engaged with each other. The first pressed oil rotating shaft 2541 and the pressed oil transmission gear rotating shaft 252 are driven by a first chain type transmission device. The third pressed rotating shaft 2543 can drive the grinding disc 23 to rotate, and the third pressed rotating shaft 2543 and the second pressed rotating shaft 2542 are driven by a second chain transmission device.

According to the invention, the rack structure 211 moves downwards through the downward pressing movement of the pressing end, the extruded oil pressing transmission gear 251 meshed with the rack structure 211 is driven to rotate, the extruded oil transmission gear rotating shaft 252 is driven to rotate, the first extruded oil pressing rotating shaft 2541 is driven to rotate through the transmission of the first chain type transmission device, the second extruded oil pressing rotating shaft 2542 is driven to rotate through the reversing of the first extruded oil pressing conical gear 2531 and the second extruded oil pressing conical gear 2532, the third extruded oil pressing rotating shaft 2543 is driven to rotate through the transmission of the second chain type transmission device, and therefore, the rotation of the grinding disc 23 is realized.

In some embodiments, each of the chain transmission devices of the present invention is a prior art device, and includes a first extrusion gear, a second extrusion gear, and a chain sleeved on the first extrusion gear and the second extrusion gear. The first pressing gear of the first chain transmission device is fixedly connected to the first pressing oil-pressing rotating shaft 2541, the second pressing gear of the first chain transmission device is fixedly connected to the pressing oil transmission gear rotating shaft 252, the first pressing gear of the second chain transmission device is fixedly connected to the third pressing oil-pressing rotating shaft 2543, and the second pressing gear of the second chain transmission device is fixedly connected to the second pressing oil-pressing rotating shaft 2542.

In some embodiments, the chain drives of the present invention may be replaced by belt drives, i.e., the gears cooperating with the corresponding chain drives are replaced by belt pulleys, and a belt is sleeved between the cooperating belt pulleys.

In some embodiments, the first pressing rotating shaft 2541, the second pressing rotating shaft 2542, the third pressing rotating shaft 2543, and the pressing oil driving gear rotating shaft 252 of the present invention may be rotatably coupled to the frame through bearings. Other mutually rotating matched elements of the invention can also realize mutual rotating connection through the bearing.

As shown in fig. 3, in some embodiments, the pressing device 21 of the present invention is a cylinder or a cylinder, preferably a servo cylinder or a servo cylinder, and the cylinder end of the pressing device is connected to the frame, i.e. the pressing end of the pressing device 21 includes a piston rod end and a rack structure 211, and specifically, the rack structure 211 is fixed on the piston rod end. The pressing end of the pressing device 21 can extend into the inner cavity of the bin body 241 from the through hole at the top of the bin body 241.

As shown in fig. 5 and 6, the gear rack further includes a connecting rod 271, a guide hole 2711 which is vertically guided and has an upward opening is formed in the connecting rod 271, a stopper 272 is rotatably fitted to an edge of the opening at the top of the guide hole 2711, and the lower end of the rack structure 211 extends into the guide hole 2711. The sliding stopper 273 is fixedly connected to the guide hole 2711, and the upward movement of the rack structure 211 causes the top surface of the bottom of the rack structure 211 to contact the bottom surface of the sliding stopper 273.

The middle section of the rack structure 211 is provided with a limit notch 2111, the downward pressing elastic member is assembled to cause the upper and lower surfaces of the stopper 272 to contact with the inner top surface of the limit notch 2111 and the inner bottom surface of the limit notch 2111, respectively, and the connecting rod 271 is connected with the downward pressing plate 22.

When the grinding disc 23 rotates to a position where the sliding portion 231 of the grinding disc is close to and completely dislocated with the supporting portion 2412, the pressing end of the pressing device 21 contacts with the contact intermittent linkage device to drive the stopper 272 to rotate to be separated from the limit notch 2111.

As shown in fig. 6, a stop stopper 249 is further disposed on the cartridge body, and when the stopper 272 is rotated to be disengaged from the stopper notch 2111, the contact block 2712 connected to the lower end of the connecting rod 271 is stopped on top of the stop stopper 279 and enters into the second stroke from the first stroke.

In the first stroke period, because the upper and lower surfaces of the stopper 272 are respectively contacted with the inner top surface of the limit notch 2111 and the inner bottom surface of the limit notch 2111, the rack structure 211, the stopper 272 and the connecting rod 271 are in an integral state, the downward pressing movement of the downward pressing end of the downward pressing device 21 enables the rack structure 211 and the connecting rod 271 to synchronously move downward to drive the grinding disc 23 fixed with the rack structure 211 and the connecting rod 271 to move downward, the downward pressing movement of the downward pressing disc 22 is synchronous with the rotation of the grinding disc 23, after the downward pressing end of the downward pressing device 21 is pressed to be contacted with the contact intermittent linkage device, the contact intermittent linkage device drives the stopper 272 to rotate to be separated from the limit notch, the downward pressing elastic piece is currently deformed, at this time, the rack structure 211 and the connecting rod 271 are in a separated state, because the connecting rod 271 is braked by the limit stopper 279 at this time, the position of the limit rod 271 is locked, and the rack structure 211 can move up and down relative to the connecting rod 271, thereby entering the second stroke. In the second stroke period, the pressing end of the pressing device 21 further moves downwards, the rack structure 211 further extends into the guide hole 2711, and at this time, because the pressing plate 22 presses downwards above the grinding disc 23 and finishes the oil pressing work, the displacement amount of the pressing plate 22 which can be further pressed downwards is smaller or has no displacement amount, and the pressing plate is relatively in a static state, at this time, the rack structure 211 can further move downwards unilaterally, and the grinding disc 23 is continuously driven to rotate until the grinding disc 23 rotates to the position where the sliding part 231 and the supporting part 2412 are completely dislocated.

And in the resetting stage, the upward movement of the pressing end of the pressing device 21 firstly drives the rack structure 211 to move upward to the position where the limiting notch 2111 is opposite to the stop block 272 again, at this time, the top surface of the boss structure at the bottom of the rack structure 211 contacts with the bottom surface of the sliding limiting block 273, the rack structure 211 continues to move upward to drive the connecting rod 271 to move upward, meanwhile, the pressing end of the pressing device 21 moves upward to be separated from the contact intermittent linkage device, under the resetting action of the pressing elastic member 274, the stop block 272 rotates again to the position where the upper surface and the lower surface are respectively contacted with the inner top surface of the limiting notch 2111 and the inner bottom surface of the limiting notch 2111, the pressing end of the pressing device 21 continuously resets upward to drive the connecting rod 271 to synchronously reset upward.

By adopting the structure of the pressing end of the pressing device 21 of the invention to be matched with the contact intermittent linkage device, in the process of pressing the pressing end of the pressing device 21, during the first stroke, namely, the rotary pressing-down squeezing stage, the pressing-down movement of the pressing-down disc 22 is linked with the rotary movement of the grinding disc 23, so as to ensure the smooth operation of the rotary pressing-down squeezing, and during the second stroke, namely, the blanking stage of the grinding disc 23, because the pressing process is completed when the lower pressing disc 22 and the grinding disc 23 are matched with each other on the one hand, and on the other hand, the displacement of the lower pressing disc 22 which can be actually pressed down is very small along with the formation of the slag cake, of course, at the initial point of the second stroke, if the contact area between the sliding part and the support part is small, the lower platen may move downwards and rotate with the grinding disc to a position where the sliding part and the support part are completely dislocated, and thus, the position stability of the grinding disc in the pressing stage may be insufficient. Therefore, during the second stroke, the linkage between the lower pressing plate 22 and the grinding disc 23 is not necessarily required, that is, the lower pressing end of the pressing device 21 is pressed down only by rotating the grinding disc 23, and at the end of the first stroke, the present invention utilizes the cooperation of the contact intermittent linkage device and the structure of the pressing end of the present invention to achieve the technical effect that the grinding disc 23 rotates and the lower pressing plate 22 does not move when reaching the second stroke, and can meet the requirement that the sliding part 231 and the supporting part 2412 still have a large contact area when reaching the second stroke. At the stage that resets, because rack structure 211 upward movement can cause the boss structure of the bottom of rack structure 211 to contact with slip stopper 273, utilize the displacement volume that slip stopper 273 resets alone to rack structure 211 to inject, guarantee that spacing notch 2111 therein can be relative with dog 272 again, satisfy the accurate nature that dog 272 resets.

In some embodiments, the stop 272 is fixedly coupled to the stop pivot 275, and the stop pivot 275 is rotatably coupled to the connecting rod 271.

As shown in fig. 8, in some embodiments, the downward-pressing elastic member 274 may be a torsion spring, which is sleeved on the stopper rotating shaft 275, and both ends of the torsion spring are connected to the stopper 272 and the connecting rod 271 respectively. Of course, the pressing elastic member 274 may be other prior art springs or elastic bodies.

As shown in fig. 9-13, in some embodiments, the contact intermittent linkage includes a swing arm 2761, a transfer rod 2762, a top bar 2763, and a swing arm reset elastomer 2764. Linear guide rail 243 sets up on storehouse body 241, and the one end fixed connection of swing arm 2761 is on swing arm pivot 2765, swing arm pivot 2765 and storehouse body 241 normal running fit, and the both ends of transfer bar 2762 are articulated with the middle section of swing arm 2761, the one end of ejector pin 2763 respectively, ejector pin 2763 and linear guide rail 243 sliding fit. The end of the piston rod is fixedly connected with a driving block 2001, the driving block 2001 moves downwards to be in contact with the other end of the swing arm 2761 to drive the swing arm 2761 to rotate, so that the ejector bar 2763 moves to the other end to be in contact with the stop 272 and drive the stop 272 to rotate.

After the pressing end moves downwards to the driving block 2001 and contacts with the swing arm 2761, the swing arm 2761 rotates to drive the transmission rod 2762 to transmit, so that the top bar 2763 moves along the guide of the linear guide rail 243 to contact with the stop block 272, and drives the stop block 272 to rotate, after the stop block 272 rotates to be separated from the limit notch 2111, the rack structure 211 moves downwards, the top bar 2763 continuously moves along the guide of the linear guide rail 243 to drive the stop block 272 to continuously rotate, and the rack structure 211 moves downwards until the sliding portion 231 and the supporting portion 2412 are completely dislocated. When the pressing end moves upwards to be separated from the swing arm 2761 gradually, the swing arm reset elastic body 2764 performs reset motion to drive the swing arm 2761 to perform reset motion, the push rod 2763 resets and separates from the stop 272, and the stop 272 resets.

In some embodiments, the swing arm reset elastic body 2764 is assembled between the swing arm 2761 and the bin body 241, and may be a torsion spring or other springs, and when the spring is a torsion spring, the spring is sleeved on the swing arm rotating shaft 2765, and two ends of the spring may be connected to the swing arm 2761 and the bin body 241, respectively. When the tension spring is used, two ends of the tension spring can be respectively connected with the swing arm 2761 and the bin body 241 or two ends of the tension spring are hooked on the mounting holes of the swing arm 2761 and the bin body 241.

In some embodiments, the upper and lower ends of the connecting rod 271 are connected to the pressing end and the pressing disc 22, respectively, and the rack structure 211 is slidably engaged with the connecting rod 271.

As shown in fig. 14, the pressing end further includes a secondary pressing device 215, the secondary pressing device 215 is disposed on the piston rod of the pressing end of the pressing device 21, and the pressing end of the secondary pressing device 215 is connected to the rack structure 211.

The depressing end depressing movement of the secondary depressing means 215 occurs for the second stroke period.

Secondary hold down device 215 is preferably a servo cylinder or servo cylinder having a piston rod end, i.e., the hold down end of secondary hold down device 215, connected to rack structure 211.

The depressing-end depressing movement of the depressing device 21 is actually a depressing movement of the depressing end of the secondary depressing device 215 provided on the depressing end of the depressing device 21 during the second stroke time, during which the rod end of the depressing device 21 is not depressed.

As shown in fig. 15 and 16, in some embodiments, the edge of the grinding disc 23 is fixedly connected with a pressing block 281, a rotating connecting rod 282 is rotatably connected to the bin body 241, a higher end of the rotating connecting rod 282 is hinged to a lower end of an opening connecting rod 283, an upper end of the opening connecting rod 283 is hinged to an oil leakage port valve 284, the oil leakage port valve 284 is in sliding fit with an oil leakage port 2411, and a bin body elastic member (not shown) is assembled to close the oil leakage port valve 284 on the oil leakage port 2411. The rotation of the grinding disc 23 can cause the pressing block 281 to contact with the rotary connecting rod 282 to rotate until the oil leakage port valve 284 moves to open the oil leakage port 2411.

In the rotation process of the grinding disc 23, after the pressing block 281 is in contact with the rotating connecting rod 282, the higher end of the rotating connecting rod 282 is driven to rotate downwards, the bin body elastic part deforms, the oil leakage port valve 284 is driven to move downwards through the transmission of the opening connecting rod 283 until the oil leakage port 2411 is opened, and accordingly, the squeezed oil flows out of the oil leakage port 2411. When the grinding disc 23 is reset, the pressing block 281 is separated from the rotary connecting rod 282, the elastic member of the bin body is reset, and the valve 284 of the oil leakage opening is driven to be closed upwards again on the oil leakage opening 2411.

Further, an installation groove with an upward opening is formed in the bin body 241, the rotating connecting rod 282 is fixedly connected to the rotating connecting rod rotating shaft, and the rotating connecting rod rotating shaft is in running fit with the installation groove of the bin body 241. The elastic member of the bin body can be a torsion spring, which is sleeved on the rotating shaft of the rotating connecting rod, and two ends of the elastic member are respectively connected with the rotating connecting rod 282 and the bin body 241.

Thus, the oil leakage port 2411 is in a closed state when not squeezing, and the opening only occurs in the squeezing process, so that the sealing performance of the bin body 241 is improved.

As shown in fig. 16, in some embodiments, the upper surface of the grinding disc 23 has a structure in which the height gradually decreases from the center to both sides, and a plurality of concentric annular grooves are formed on the upper surface of the grinding disc 23, and all the annular grooves are communicated with each other. The annular groove at the outermost side is provided with a notch, and the notch is positioned above the oil leakage port 2411 or is flush with the oil leakage port 2411 and is communicated with the oil leakage port 2411.

The side surfaces of the abrasive disc 23 are in sealing contact with the inner side walls of the cartridge body 241.

Thus, because the upper surface of the grinding disc 23 is in a structure that the height gradually decreases from the center to the two sides, a plurality of concentric annular grooves are formed in the upper surface of the grinding disc 23, and all the annular grooves are communicated with each other. The annular groove on the outermost side is provided with a notch, and the notch is positioned above the oil leakage port 2411 or is flush with the oil leakage port 2411, so that the surface roughness of the grinding disc 23 is improved, the squeezing efficiency is improved, and the oil can be ensured to flow out in time.

As shown in fig. 11, in some embodiments, the chamber 241 of the pressing chamber 24 is provided with a first inlet, and the first inlet is communicated with the end of the barrel of the screw oil expeller 1.

Waste residue conveyed from the tail end of the barrel of the screw oil press device 1 falls into the extrusion bin 24 through the first feeding hole, and the first feeding hole can be closed in the lifting motion process of the lower pressing end of the lower pressing device 21.

Therefore, in the squeezing process of the squeezing bin 24, the screw oil squeezing device 1 can stop feeding the squeezing bin 24 under the state of no shutdown, and waste residues are temporarily stored in the first pipeline 41 communicated between the first feeding hole and the tail end of the barrel of the screw oil squeezing device 1, so that the influence of feeding in the stage on squeezing of next batch of waste residues is avoided.

In some embodiments, a lubricating layer is coated on the sliding portion 231 and the supporting portion 2412.

In some embodiments, the servo oil cylinder or the servo air cylinder and the servo motor can be driven to work by a PLC numerical control center. The motor driving the screw in the screw oil squeezing device 1 to rotate is also preferably a servo motor.

In some embodiments, the secondary pressing apparatus 2 of the present invention can also be used as an independent oil press for pressing crop oil.

The screw oil press 1 may be a screw and press device of a household oil press disclosed in CN201621475424.4, a household oil press disclosed in CN201220706493.7, a new soybean oil press disclosed in CN208392727U, an oil press disclosed in CN104875413B, or other screw oil presses of other prior arts.

As shown in fig. 17 and 18, in some embodiments, the grinding disc 23 is sleeved on the third pressed rotating shaft 2543, a strip-shaped protrusion 25431 is disposed on a periphery of a top of the third pressed rotating shaft 2543, a strip-shaped notch communicated with the through hole is disposed on a periphery of the through hole in the grinding disc 23, which is matched with the third pressed rotating shaft 2543, and when the through hole of the grinding disc 23 is sleeved on the top of the third pressed rotating shaft 2543, the strip-shaped protrusion extends into the corresponding strip-shaped notch. The shape of the projection formed by the strip-shaped notch and the through hole in the vertical direction is matched with the shape of the projection formed by the top of the third extruded oil pressing rotating shaft 2543 in the vertical direction, so that key connection is formed. When the grinding disc 23 rotates to a position where the sliding portion 231 thereof is completely misaligned with the supporting portion 2412, the grinding disc 23 may move downward out of the pressing chamber 24 along the direction of the third pressing spindle 2543.

Example 2

As shown in fig. 20, the present embodiment is different from the above-described embodiments in that: the bottom of the barrel of the screw oil press device 1 is provided with a crude oil outlet, a first screen 11 is arranged on the crude oil outlet, a mesh belt conveyor is arranged at the bottom of the first screen 11, a mesh belt of the mesh belt conveyor forms a second screen 12, a guide plate 13 is further arranged on the mesh belt conveyor, and crude oil filtered from the second screen 12 can flow out through the guide plate 13. The slag remaining on the second screen 12 can be conveyed to the bin body 241 of the extrusion bin 24.

As shown in fig. 1, 20, and 21, one end of the deflector 13 extends into the area between the upper and lower second screens 12 of the mesh belt conveyor and is close to the bottom of one end of the upper second screen 12, and the other end of the deflector 13 extends obliquely downward in the direction of the other end of the second screen 12 to the area between the upper and lower second screens 12.

Wherein, the aperture of the mesh of the first screen 11 is larger than that of the mesh of the second screen 12.

According to the invention, the primary oil is filtered twice through the first screen mesh 11 and the second screen mesh 12, so that the meshes of the first screen mesh 11 have larger apertures, and fine impurities and waste residues are prevented from blocking the first screen mesh 11. The crude oil is filtered by the second screen 12 and then flows out through the guide plate 13, and the impurities and the waste residues are remained on the second screen 12 and are conveyed to the bin body 241 of the extrusion bin 24 under the conveying action of the mesh belt conveyor.

In some embodiments, the chamber 241 of the extrusion chamber 24 is provided with a second feeding hole, and the second feeding hole is communicated with the end of the mesh belt conveyor.

The waste slag conveyed from the end of the mesh belt conveyor can fall into the bin body 241 of the extrusion bin 24 through the second feed opening.

In some embodiments, as shown in fig. 11, the second inlet can be closed during the lifting and lowering movement of the pressing end of the pressing device 21.

Therefore, the invention realizes that the mesh belt conveyor can stop feeding the extrusion bin 24 under the state of no shutdown in the extrusion process of the extrusion bin 24, and the waste residue is temporarily stored in the second pipeline 42 communicated between the second feeding hole and the mesh belt conveyor, thereby avoiding the influence of feeding in this stage on the extrusion of the next batch of waste residue.

Example 3

The embodiment discloses a soybean oil processing production is with broken integrative device that extracts oil, including breaker, breaker's discharge gate and screw rod device 1's feed inlet intercommunication. Thereby realizing the integration of the crushing device and the oil pressing.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The oil press device is characterized by comprising a screw oil press device and a secondary oil press device, wherein the secondary oil press device is used for carrying out secondary oil press treatment on waste residues obtained by the screw oil press device;

the secondary extrusion oil pressing device comprises a pressing device, a pressing plate, a grinding disc, an extrusion bin, a rotary transmission device and a bottom supporting device; the extrusion bin comprises a bin body which is hollow inside and is provided with an opening at the bottom; the lower pressure disc is positioned above the grinding disc; the grinding disc comprises a sliding part, and the bin body comprises a supporting part; the sliding part can be supported on the supporting part, and the bottom supporting device can support the grinding disc;

the downward pressing end movement of the downward pressing device comprises a first stroke and a second stroke which are sequentially performed, in the first stroke stage, the downward pressing end downward pressing movement of the downward pressing device can drive the lower pressing disc to move downwards in the direction close to the lower pressing disc, the rotary transmission device drives the lower pressing disc to rotate, and materials on the grinding disc are pressed in a rotating state; in the second stroke stage, when the pressing end of the pressing device moves to drive the grinding disc to rotate until the sliding part of the grinding disc is staggered with the supporting part, the grinding disc can move downwards relative to the bin body.

2. The oil press according to claim 1, wherein the pressing end of the pressing device comprises a rack structure, and the rotary transmission device comprises an extrusion press transmission gear, a press oil transmission gear rotating shaft, a first chain transmission device, a first extrusion press bevel gear, a second extrusion press bevel gear, a first extrusion press rotating shaft, a second chain transmission device and a third extrusion press rotating shaft;

the first extruded oil pressing bevel gear and the second extruded oil pressing bevel gear are respectively connected to the first extruded oil pressing rotating shaft and the second extruded oil pressing rotating shaft and are meshed with each other; the first oil squeezing rotating shaft and the oil squeezing transmission gear rotating shaft are driven by the first chain type transmission device; the third oil pressing rotating shaft can drive the grinding disc to rotate, and the third oil pressing rotating shaft and the second oil pressing rotating shaft are driven by the second chain type transmission device.

3. The oil press according to claim 2, further comprising a connecting rod, wherein the pressing end is connected with the pressing disc through the connecting rod; the connecting rod is provided with a guide hole which is vertically guided and has an upward opening, the opening end of the guide hole is rotatably matched with a stop block, and the lower end of the rack structure extends into the guide hole; a sliding limiting block is connected in the guide hole, and the upward movement of the rack structure can cause the top surface of the bottom of the rack structure to be in contact with the bottom surface of the sliding limiting block; a limiting notch is formed in the middle section of the rack structure, and the downward pressing elastic piece is assembled to enable the upper surface and the lower surface of the stop block to be in contact with the inner top surface of the limiting notch and the inner bottom surface of the limiting notch respectively;

the pressing end of the pressing device moves downwards to be in contact with the contact intermittent linkage device, and the contact intermittent linkage device is driven to drive the stop block to rotate to be separated from the limiting notch;

and when the stop block rotates to be separated from the limit notch, the connecting rod is limited by the brake limit block and enters the second stroke from the first stroke.

4. The oil press according to claim 3, wherein the intermittent contact linkage comprises a swing arm, a transmission rod, a top rod and a swing arm reset elastic body; the linear guide rail is arranged on the bin body, one end of the swing arm is in running fit with the bin body, two ends of the conveying rod are respectively hinged with the middle section of the swing arm, one end of the ejector rod is hinged, and the ejector rod is in sliding fit with the linear guide rail; the lower pressing end is connected with an active block, and the active block moves downwards to be in contact with the other end of the swing arm to drive the swing arm to rotate so that the other end of the ejector rod moves to be in contact with the stop block and drives the stop block to rotate; the swing arm reset elastic body is assembled between the swing arm and the bin body.

5. The oil press according to claim 2, further comprising a connecting rod, wherein the pressing end is connected with the pressing disc through the connecting rod; the lower pressing end further comprises a secondary lower pressing device, and the lower pressing end of the secondary lower pressing device is connected with the rack structure;

the pressing end pressing motion of the secondary pressing device occurs in the second stroke stage.

6. The oil press according to claim 1, wherein the edge of the grinding disc is connected with a pressing block, the bin body is rotatably connected with a rotating connecting rod, the end of the rotating connecting rod is hinged with the lower end of an opening connecting rod, the upper end of the opening connecting rod is hinged with an oil leakage port valve, the oil leakage port valve is in sliding fit with an oil leakage port, and a bin body elastic part is assembled to close the oil leakage port valve on the oil leakage port; the millstone can rotate to enable the pressing block to be in contact with the rotary connecting rod to drive the pressing block to rotate until the oil leakage opening valve moves to the oil leakage opening to be opened.

7. The oil press according to claim 6, wherein the upper surface of the grinding disc is of a structure with the height gradually decreasing from the center to two sides, a plurality of concentric annular grooves are formed in the upper surface of the grinding disc, and all the annular grooves are communicated with each other; and a notch is formed in the annular groove on the outermost side and is positioned above the oil leakage port or is flush with the oil leakage port.

8. The oil press device according to claim 1, wherein a first screen is arranged at the bottom of the barrel of the screw oil press device, a mesh belt conveyor is arranged at the bottom of the first screen, a second screen is formed on a mesh belt of the mesh belt conveyor, a guide plate is further arranged on the mesh belt conveyor, and crude oil filtered from the second screen can flow out through the guide plate; and the waste residue remained on the second screen can be conveyed to the bin body of the extrusion bin.

9. The crushing and oil pressing integrated device for the soybean oil processing production based on the oil pressing device of any one of claims 1 to 8 is characterized by further comprising a crushing device, wherein a discharge hole of the crushing device is communicated with a feed inlet of the screw oil pressing device.

10. A soybean oil downward-pressing device is characterized by comprising a downward-pressing device, a downward pressing disc, a grinding disc, an extrusion bin, a rotary transmission device and a bottom supporting device; the extrusion bin comprises a bin body which is hollow inside and is provided with an opening at the bottom; the lower millstone is positioned above the millstone; the grinding disc comprises a sliding part, and the bin body comprises a supporting part; the sliding part can be supported on the supporting part, and the bottom supporting device is supported at the bottom of the grinding disc;

the pressing end movement of the pressing device comprises a first stroke and a second stroke which are sequentially performed, in the first stroke stage, the pressing end pressing movement of the pressing device can drive the lower pressing plate to move downwards in the direction close to the lower pressing plate, the grinding disc is driven to rotate through the transmission of the rotary transmission device, and the materials on the grinding disc are squeezed to extract oil in the rotating state; in the second stroke stage, when the pressing end of the pressing device moves to drive the grinding disc to rotate until the sliding part of the grinding disc is staggered with the supporting part, the grinding disc can move downwards relative to the bin body.

Images