JP2013245319A - Oil press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate supply of a raw material to be pressed by an oil press by using a preferable device to lessen the load on a worker and simplify the work.SOLUTION: There is provided an oil press having a raw material supplying part 20 to supply a raw material for pressing to an oil pressing part 10. The raw material supplying part 20 is provided with a storage vessel 21 for the pressing raw material, a container 22 to receive the pressing raw material from the storage vessel and store one-batch quantity of the raw material to be pressed by the oil pressing part 10, and a transporting device 24 to transport the container to the oil pressing part for each oil pressing cycle.

Description

  The present invention relates to an oil expression device.

  Regarding the oil-squeezing device that squeezes plant seeds such as cocoons and separates the oil content, it comprises a stand having an upper cylinder and a lower cylinder, and a filter tank in which raw materials are stored is provided between the upper cylinder and the lower cylinder, There is a device that squeezes the oil in the filter tank by lowering the piston of the upper cylinder (Patent Document 1).

Utility Model Registration No. 3162808

  The oil expression device described in Patent Document 1 is an operation for packing a stored raw material in a filter bag, an operation for conveying a filter bag filled with the raw material to the oil extraction device, and a transported filter bag in the filter tank. All of the work needs to be done by the workers. The work of placing the filter bag filled with raw materials in the filter tank is to remove the bolts that fasten and fix the cover attached to the upper part of the filter tank, remove the cover, and take out the pressure panel in the filter tank. It is necessary to place a filter bag filled with raw materials in a filter tank, place a pressure panel on the filter bag, attach a cover, and fasten and fix the cover with bolts. It is necessary to perform these operations for each pressing. Therefore, the burden of the labor of a worker is large, and complicated work is forced.

  Therefore, an object of the present invention is to provide an oil press that can automate the supply of raw materials for pressing with a preferable device, reduce the burden of labor, and simplify the operation.

  The oil expression device of the present invention includes a cylinder having a hollow cylindrical shape, a piston having a solid column shape that can be inserted into the hollow portion of the cylinder and movable in the axial direction of the cylinder, and an opening at an axial end portion of the cylinder An oil extraction part having an oil extraction space formed by an arm provided so as to cover and a raw material supply part that supplies the raw material for oil extraction toward the oil extraction part, the raw material supply part is a reservoir of the raw material for oil extraction And a container that accommodates the raw material for oil extraction from the reservoir in a quantity of one oil extraction in the oil extraction part, and a conveying device that conveys the container to the oil extraction part for each oil extraction. And

In the oil expression device of the present invention, the container is one in which the outer cylinder and the upper plate are separated, and the container accommodates an oil permeable bag in which the amount of the raw material for oil extraction is put into one container. It is preferable that a recovery device for returning an empty container after supplying the raw material for oil extraction to the oil extraction unit to the raw material supply unit is more preferable.
Furthermore, it is preferable that the cylinder of the oil expression apparatus of the present invention has a cooling means because the quality of oil obtained by oil expression can be improved.
Furthermore, it is preferable that the raw material for oil extraction which performs oil extraction using the oil extraction apparatus of this invention is an uncrushed plant seed.

  According to the oil expression device of the present invention, it is provided with a raw material supply part that supplies the raw material for oil extraction toward the oil press, and this raw material supply part comprises a reservoir for the raw material for oil extraction, and the raw material for the oil extraction from the reservoir, Since it has the container accommodated by the amount of oil extraction once in an oil extraction part, and the conveying apparatus which conveys this container toward an oil extraction part for every oil extraction, oil extraction for expression in an oil extraction part The supply of raw materials can be automated to reduce the burden of labor, and the work can be simplified.

It is a top view of one embodiment of the oil expression device of the present invention. It is an AA line side view of one embodiment of the oil press of the present invention. It is a rear view of one Embodiment of the oil expression apparatus of this invention. It is explanatory drawing of the upper cylinder in one Embodiment of the oil expression apparatus of this invention. It is a schematic diagram of an example of the container in one embodiment of the oil expression apparatus of this invention.

  Hereinafter, embodiments of the oil expression device of the present invention will be described more specifically with reference to the drawings. In the drawings shown below, in order to facilitate understanding of the features of the present invention, descriptions of cylinder sensors, control panels, and the like are omitted.

  1-3 is equipped with the oil extraction part 10 which squeezes the raw material for oil extraction, and collect | recovers oil components, and the raw material supply part 20 which guides the raw material for oil extraction toward this oil extraction part 10 ing.

  The oil extraction unit 10 has a hollow cylindrical shape as a cylinder, and a metal upper cylinder 11A having a central axis provided in a vertical direction, and a slightly larger inner diameter than the upper cylinder 11A so as to be inserted into the upper cylinder 11A. It has a solid cylindrical shape with a small diameter and is vertically movable and has a metal piston 12 and a metal arm 13 that covers and fixes the upper opening of the upper cylinder 11A. . An oil extraction space is formed by being surrounded by the upper cylinder 11A, the piston 12 and the arm 13. The outer periphery of the piston 12 is surrounded by the lower cylinder 11B.

  The upper cylinder 11A is provided with a plurality of inlets 111 and outlets 112 for cooling liquid as shown in a plan view (FIG. 4A) and a cross-sectional view taken along line BB (FIG. 4B) in FIG. The coolant passage 113 connected to the introduction port 111 and the discharge port 112 may be formed inside the side wall of the upper cylinder 11A. Coolant such as water enters the inside of the upper cylinder 11A from the inlet 111 and is discharged from the outlet 112 through the passage 113 inside the side wall, thereby effectively cooling the upper cylinder 11A. be able to.

An oil receiver 14 is provided on the side surface of the lower cylinder 12B, and receives oil that flows down along the side surface of the piston 12 during compression. The oil stored in the oil receiver 14 is collected in a storage container (not shown) through a cock 141 attached to the oil receiver 14.
A hydraulic cylinder 15 is provided at the lower end of the piston 12. This hydraulic cylinder 15 receives the hydraulic pressure from the hydraulic pump 16 and raises the piston 12.

  The arm 13 has a length that spans between two columns 17A and 17B that are erected so as to sandwich the upper cylinder 11A. The arm 13 is attached to one end portion in the longitudinal direction so as to be rotatable with respect to the central axis of the column 17A, and an arm opening / closing cylinder 18 for attaching the arm 13 is attached to the other end portion in the longitudinal direction. Is formed with a groove 13a that engages with the pillar 17B. When the arm 13 is rotated about the column 17A by the arm opening / closing cylinder 18, the arm 13 can open and close the upper opening of the upper cylinder 11A. Bolts 17C for restricting the movement of the arm 13 in the vertical direction are respectively attached to the upper ends of the pillars 17A and 17B, and the force applied to the arms 13 during pressing is received and fixed.

  A squeezed residue discharge chute 19 is provided in the vicinity of the upper opening of the upper cylinder 11 </ b> A.

  The raw material supply unit 20 has a hopper 21 as a reservoir for temporarily storing the raw material for oil extraction.

  In the illustrated embodiment, the hopper 21 is provided on the opposite side of the squeeze residue discharge chute 19 as viewed from the upper cylinder 11 </ b> A and the piston 12. The hopper 21 has a rectangular shape when viewed from above, and has an upper opening 21a at the upper end, and a width lower than the upper opening at the lower end and is formed along the longitudinal center of the upper opening 21a. A lower opening 21b. As can be understood from FIG. 3, the hopper 21 has a tapered lower part in the cross section so as to be adapted to the size of the opening of the lower opening 21 b. A gate 21c is attached to the lower opening 21b so that the lower opening 21b can be opened and closed appropriately according to the operation of the raw material supply unit 20.

  Below the lower opening 21b of the hopper 21, there is provided a belt conveyor 23 that receives the raw material for oil expression descending from the lower opening 21b and conveys it in the horizontal direction. The illustrated belt conveyor 23 includes an endless belt 23a, a driving roller 23b and a driven roller 23c provided near both longitudinal ends of the lower opening 21b, and a motor 23d for driving the driving roller 23b. The endless belt 23a wound around the driven roller 23c is circulated and moved by the driving roller 23b that rotates by receiving a driving force from the motor 23d.

  In the illustrated example, the moving direction of the endless belt 23a is such that the raw material for oil expression loaded on the endless belt 23a is moved to the end of the hopper 21 far from the upper cylinder 11A and the piston 12. . Thereby, the end of the hopper 21 on the side farther from the upper cylinder 11 </ b> A and the piston 12 becomes the raw material supply position to the container 22. Thereby, it is easy to confirm that the container 22 contains the raw material for oil extraction. Also, a plurality of containers 22 are prepared, and the raw material for oil extraction is stored in advance in each container 22 before oil extraction, and the conveyance path in which the conveyance device 24 is provided for these containers 22, specifically this embodiment. Then, it can arrange in the 1st conveyance part mentioned later, Therefore The raw material for oiling accommodated in the arranged several container 22 can be squeezed sequentially. However, the moving direction of the endless belt 23a is not limited to the above-described direction, and may be another direction according to an arbitrary planar shape and a longitudinal direction of the lower opening 21b formed in the hopper 21.

  The raw material supply unit 20 has a container 22 that accommodates the raw material for oil extraction from the hopper 21 in an amount equivalent to one oil extraction. A preferable example of the container 22 is made of metal, and includes two separable members, a hollow cylindrical outer cylinder 22a and an upper plate 22b, as shown in FIG. The illustrated container 22 does not have a bottom member, and slides on the container supply base made of a flat plate of the transport device 24 toward the oil extraction unit 10. The container 22 does not have a member as a bottom, and can be separated into an outer cylinder 22a and an upper plate 22b, so that the raw material stored in the container can be separated into the oil extraction space of the oil extraction unit 10 and the outer cylinder 22a. It can be inserted together with the upper plate 22b without tilting. The upper plate 22b can prevent the raw material for oil extraction or a filter F (described later) from adhering to the arm 13 when the oil extraction unit 10 finishes pressing, and can easily open the arm 13.

  In the illustrated example, the outer cylinder 22a has an inner diameter having the same length as the diameter of the upper cylinder 11A. However, the inner diameter of the outer cylinder 22a is not limited to the same as the diameter of the upper cylinder 11A. The outer cylinder 22a can be made to have a large number of holes or a net-like one in order to reduce the weight and facilitate confirmation of the contents. Moreover, it is preferable that the outer cylinder 22a consists of magnetic bodies, such as steel materials. Since the outer cylinder 22a is a magnetic body, it becomes easy to collect the outer cylinder 22a after the raw material for oil extraction is put into the hollow portion of the upper cylinder 11A in the third conveying section 243 of the conveying device 24 described later.

  When accommodating the raw material for oil extraction in the container 22, the raw material for oil extraction from the belt conveyor 23 may be accommodated in the container 22 as it is, but the raw material for oil extraction is a bag-shaped filter F as an oil permeable bag. (Refer to FIG. 5), and it is preferable to accommodate the filter F together with the filter 22. That is, by putting the raw material for oil extraction into the filter F, the raw material for oil extraction can be inserted into the oil extraction space of the oil extraction unit 10 together with the filter F. Therefore, it is necessary to prepare the filter F separately during oil extraction. Because there will be no more. And by squeezing the raw material for oil extraction together with the filter F, the oil flows out from the oil extraction space through the filter F, so that an oil with few impurities can be obtained as it is. Further, when the container 22 is composed of an outer cylinder 22a and an upper plate 22b as shown in FIG. 5, the filter F also serves as a bag for containing the raw material for oil extraction in the container 22, so It is possible to prevent the raw material for oil extraction in the container 22 from spilling when the 22 moves. The bag-shaped filter F can be made of cloth, for example, non-woven cloth.

  In order for the container 22 to contain the raw material for oil extraction in the amount of one time of pressing, it is preferable to measure. This weighing can be performed by providing a weighing device (not shown) that is linked to the belt conveyor 23. Further, the weighing may be performed manually without using the weighing device.

The raw material supply unit 20 includes a transport device 24 that transports the container to the oil extraction unit 10.
The transport device 24 includes a first transport unit 241 that transports the container 22 in parallel with the side surface of the hopper 21, a second transport unit 242 that transports the container 22 transported by the first transport unit to just before the upper cylinder 11A, And a third transport section 243 that transports the container 22 transported by the two transport sections to the position close to the upper opening of the upper cylinder 11A.

  The first transport unit 241 has a container supply base 241 a as a movement path of the container 22. The container supply base 241a is made of a flat plate. In the illustrated example, the height of the container supply base 241a is substantially the same as the upper opening of the upper cylinder 11A, and the container 22 is moved in the horizontal direction on the container supply base 241a. A groove for projecting a comb 241b for moving the container 22 onto the container supply base 241a from below the container supply base 241a is provided on both sides of the container supply base 241a in the traveling direction of the container 22. It is formed along the direction.

  The comb 241b has a plurality of projecting members corresponding to the number of the containers 22 on both sides of the container supply base 241a. The supply base 241 a is provided in the longitudinal direction with an interval larger than the diameter of the container 22. A comb feed cylinder 241c for moving the comb 241b by a predetermined length in the traveling direction of the container 22, for example, the length of one container 22, is attached to the lower part of the comb 241b. Further, a comb upper and lower cylinder 241d for projecting the protruding member of the comb 241b from below the container supply base 241a through the groove of the container supply base 241a onto the container supply base 241a and immersing below the container supply base 241a is provided. Are attached to the comb feed cylinder 241c. By the comb feed cylinder 241c and the comb upper and lower cylinders 241d, the comb 241b intermittently moves the container 22 in the longitudinal direction of the container supply base 241a for each oil extraction operation.

  The 2nd conveyance part 242 has the container crossing cylinder 242a provided in the direction which crosses the said container supply base 241a in the position higher than the container 22 on the container supply base 241a. A feed plate 242b suspended from the container crossing cylinder 242a is attached to a position where it can come into contact with the outer cylinder 22a of the container 22. The feed plate 242b is moved in a direction crossing the container supply base 241a by the operation of the container crossing cylinder 242a, and the container 22 brought into contact with the feed plate 242b is linearly moved to a predetermined position closest to the upper cylinder 11A. It becomes possible.

  The third transport unit 243 includes a container discharge cylinder 243a as a transport unit on the side opposite to the upper cylinder 11A when viewed from a predetermined position where the container 22 is moved by the second transport unit 242. The container discharge cylinder 243a is provided such that its rod can advance and retreat on a straight line connecting the predetermined position of the container 22 and the upper opening of the upper cylinder 11A. By advancing this rod, the container 22 conveyed to the above position can be pushed by the tip of the rod and advanced to the opening of the upper cylinder 11A. Thereby, the raw material for oil extraction enclosed by the filter F and accommodated in the container 22 is located on the piston 12 with the said filter F and the upper board 22b of the container 22. FIG.

  In the illustrated example, a magnet is attached to the tip of the rod of the container discharge cylinder 243a. This magnet can be an electromagnet capable of generating and stopping magnetic force, but a permanent magnet can also be used. The outer cylinder 22a of the container 22 made of a magnetic material is attracted to the magnet. Thereby, after accommodating the raw material for oil extraction in the oil extraction space, the empty outer cylinder 22a adsorbed by the rod can be pulled back to the predetermined position along with the retraction of the rod. The means for pulling the empty outer cylinder 22a back to the predetermined position along with the retraction of the rod is not limited to the magnet described above. For example, it is good also as a structure which pulls back by providing a latch with the outer cylinder 22a at the front-end | tip of a rod, and latching this latch with the outer cylinder 22a.

  Immediately above the upper opening of the upper cylinder 11A, an oil extraction raw material insertion cylinder 243b is provided so that the rod can be raised and lowered. The lower end of the rod of the oil extraction raw material insertion cylinder 243b has a disk shape with a diameter smaller than the inner diameter of the outer cylinder 22a of the container 22. The oil extraction raw material insertion cylinder 243b pushes down and inserts the oil extraction raw material in the container 22 conveyed to the upper opening of the upper cylinder 11A into the oil extraction space.

  The oil expression device of the present embodiment includes a container recovery device 25 that returns and recovers the outer cylinder 22a of the empty container 22 to the raw material supply unit. The container recovery device 25 is configured to transfer the outer cylinder 22a pulled back by the container discharge cylinder 243a from the predetermined position immediately near the upper opening of the upper cylinder 11A in the direction opposite to the container supply base 241a. A feed plate 251 attached to the container crossing cylinder 242a of the portion 242 is provided. That is, both the above-described feed plate 242b for transporting the container 22 containing the raw material for oil extraction and the feed plate 251 for transporting the empty outer cylinder 22a are attached to the container crossing cylinder 242a. In addition, it serves as a conveying device for the raw material for oil extraction and a collecting device for the empty container. Similarly to the feed plate 242b, the feed plate 251 has a shape that hangs down at a position where it can come into contact with the outer cylinder 22a of the container 22.

  In order to convey the outer cylinder 22 a conveyed by the feed plate 251 to the vicinity of the raw material supply position to the container 22 in the raw material supply unit 20, the container recovery device 25 conveys the outer cylinder 22 a in parallel with the side surface of the hopper 21. A roller conveyor 252 is provided. A container discharge cylinder 253 is provided above one end of the roller conveyor 252, and a feed plate 254 that is suspended so as to come into contact with the outer cylinder 22 a is connected to the container discharge cylinder 253. By the operation of the container discharge cylinder 253, the feed plate 254 can be moved in parallel with the conveying direction of the roller conveyor 252, so that the outer cylinders 22a placed on the roller conveyor 252 are sequentially sent out.

Next, operation | movement of the oil expression apparatus 1 of this embodiment is demonstrated.
Although the raw material for oil extraction using this oil expression apparatus 1 has a cocoon as an example, it is not limited to a cocoon. For example, palm, rapeseed, corn, safflower, sunflower, kaya (rice cake), sesame, and tea seeds can be used. The raw material for oil extraction is preferably uncrushed plant seeds. This is because the crushed plant seed has a reduced purity and may be altered.

  A bag-shaped filter F is put in the outer cylinder 22a of the container 22 in advance, and an opening of the filter F is opened. Further, the piston 12 of the oil extraction unit 10 is raised so that the upper surface of the piston 12 is substantially flush with the upper opening of the upper cylinder 11. Further, the arm 13 is set to a position where the upper opening of the upper cylinder 11 is opened.

  The raw material for oil extraction stored in the hopper 21 is dropped onto the belt conveyor 23 from the gate 21c. The belt conveyor 23 is operated, and the raw material for oil extraction is put into the filter F attached to the outer cylinder 22a by the amount of one oil extraction operation. The upper plate 22b is placed on the filter F containing the raw material for oil extraction in the outer cylinder 22a.

  One or a plurality of containers 22 containing raw materials for oil extraction are placed on the container supply base 241a of the first transport unit 241. The interval between the plurality of containers 22 is adjusted to the interval between combs 241b provided in the longitudinal direction of the container supply base 241a. The comb feed cylinder 241c and the comb upper and lower cylinders 241d are operated to project the comb 241b onto the container supply base 241a and move the container 22 in the longitudinal direction of the container supply base 241a.

  The top container 22 placed or reached at the front end of the container supply base 241a in the container movement direction is moved to the position close to the upper cylinder 11 using the feed plate 242b by the operation of the container crossing cylinder 242a in the second transport section 242.

  The container 22 is moved forward to the position of the upper opening of the upper cylinder 11 </ b> A by moving the rod by the operation of the container discharge cylinder 243 a of the third transport unit, and the raw material for oil extraction in the filter F is placed on the upper surface of the piston 12. The raw material insertion cylinder 243b for oil extraction is operated, the lower end of the rod is lowered, the piston 12 is pushed down by this rod, and the raw material for oil extraction and the upper plate 22a placed in the bag-shaped filter F in the container 22 are extracted. Put in.

  The rod of the raw material insertion cylinder 243b for oil extraction is raised. The rod of the container discharge cylinder 243a is attracted to the outer cylinder 22a of the container 22 by a magnetic force, and the outer cylinder 22a is pulled back to a position closest to the upper cylinder 11A as the rod is retracted.

  The arm opening / closing cylinder 18 is actuated to rotate the arm 13 about the column 17A, the tip of the arm 13 engages with the column 17B, and the arm 13 closes the upper opening of the upper cylinder 11A.

  The hydraulic cylinder is raised to raise the piston 12 and perform oil extraction. After a predetermined time has elapsed, the arm opening / closing cylinder 18 is actuated to rotate the arm 13 around the column 17A, thereby releasing the arm 13 from the upper opening of the upper cylinder 11A. The piston 12 is raised so that the upper surface of the piston 12 is substantially flush with the upper opening of the upper cylinder 11. The upper plate 22b is separated from the squeezed residue after oil extraction and recovered.

  By the operation of the comb feed cylinder 241c and the comb upper and lower cylinders 241d of the first transport unit 241 during the time until the piston 12 is raised, the container 22 containing the raw material for oil expelling next time is moved to the longitudinal direction of the container supply base 241a. Then, the container crossing cylinder 242a in the second transport unit 242 is moved to the position near the upper cylinder 11 using the feed plate 242b. In addition, by the operation of the container crossing cylinder 242a, the empty outer cylinder 22a after transporting the raw material is moved in the direction opposite to the container supply base 241a using the feed plate 251. The moved outer cylinder 22 a is moved on the roller conveyor 252 by the operation of the container discharge cylinder 253 and returned to the raw material supply unit 20.

  When the upper surface of the piston 12 is raised so as to be substantially flush with the upper opening of the upper cylinder 11, the rod is advanced by the operation of the container discharge cylinder 243a of the third transport unit, and the upper portion of the upper cylinder 11A. The oil pressing raw material in the filter F is placed on the upper surface of the piston 12. By the operation of the container discharge cylinder 243a, the squeezed residue after the previous oil pressing remaining on the piston 12 is guided to the squeeze discharge chute 19 while being pushed by the outer cylinder 22a of the container 22 and being put in the filter F. Discharged.

  Thereafter, the above-described oil extraction operation, the supply operation of the container 22 to the oil extraction unit 10, and the recovery operation of the empty outer cylinder 22a are repeated.

  According to the oil extraction device of this embodiment, the raw material supply unit 20 contains the hopper 21, the container 22 that stores the raw material for oil extraction from the hopper 21 in a single amount of oil extraction in the oil extraction unit 10, and the oil extraction of the container 22. Since it is provided with the conveying device 24 that conveys oil to the section 10 every time, the supply of the raw material for oil expression for the expression in the oil extraction section 10 is automated to reduce the burden of labor. Work can be simplified.

Further, since the container 22 is obtained by separating the outer cylinder 22a and the upper plate 22b, and the container 22 accommodates the filter F in which the raw material for oil extraction in a single amount of oil extraction is contained, the upper cylinder 11A The raw material for oil extraction can be inserted without tilting the container 22 into the oil extraction space from the upper opening. Moreover, since the raw material for oil extraction is put into the filter F and squeezed, oil with few impurities can be obtained. Further, the upper plate 22b can prevent the filter F from adhering to the arm 13 when the oil pressing unit 10 finishes the squeezing, and the arm 13 can be easily opened.
Moreover, since the container collection | recovery apparatus 25 which returns the empty outer cylinder 22a after supplying the raw material for oil extraction to the oil extraction part 10 is returned to the raw material supply part 20, the circulation circuit from supply of the container 22 to collection | recovery is formed. Therefore, the collection of the container 22 can also be automated.
Further, since the upper cylinder 11A has the coolant passage inside the side wall, it is possible to suppress the temperature rise of the oil during the oil extraction, thereby preventing the quality of the obtained oil and recovering the high quality oil. be able to.
Moreover, when the raw material for oil extraction is an uncrushed plant seed, it is possible to obtain a high-quality oil having high purity and no alteration.

  As mentioned above, although the oil expression apparatus of this invention was demonstrated with embodiment and drawing, the oil expression apparatus of this invention is not limited to description of the said embodiment and drawing, and there are many in the range which does not deviate from the meaning of this invention. Deformation is possible.

DESCRIPTION OF SYMBOLS 1 Oil expression apparatus 10 Oil extraction part 11A Upper cylinder 11B Lower cylinder 12 Piston 13 Arm 14 Oil receiver 15 Hydraulic cylinder 16 Hydraulic pump 17A Column 17B Column 17C Bolt 18 Arm opening / closing cylinder 19 Squeeze discharge chute 20 Raw material supply unit 21 Hobba 22 Container 23 Belt conveyor 24 Transport device 25 Container recovery device

Claims (5)

A cylinder having a hollow cylindrical shape, a piston having a solid column shape that can be inserted into the hollow portion of the cylinder and movable in the axial direction of the cylinder, and an arm provided to cover the opening at the end in the axial direction of the cylinder An oil extraction section having an oil extraction space to be formed;
A raw material supply unit that supplies raw materials for oil extraction toward this oil extraction unit;
With
The raw material supply unit includes a reservoir of the raw material for oil extraction, a container for storing the raw material for oil extraction from the reservoir in an amount of one oil extraction in the oil extraction unit, and the oil is extracted once for the oil extraction unit toward the oil extraction unit. A transport device for transporting to
An oil expression device comprising:   The oil press according to claim 1, wherein the container is one in which an outer cylinder and an upper plate are separated, and an oil permeable bag in which a raw material for oil extraction in an amount corresponding to one oil extraction is placed in the container.   The oil press apparatus of Claim 1 or 2 provided with the collection | recovery apparatus which returns the empty container after supplying the raw material for oil extraction to the said oil extraction part to a raw material supply part.   The oil press according to any one of claims 1 to 3, wherein the cylinder has a cooling means.   The oil extraction apparatus according to any one of claims 1 to 4, wherein the raw material for oil extraction is uncrushed plant seeds.

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