JP6729862B2 - Oil extraction method and oil press - Google Patents

Description

The present invention relates to an oil squeezing method and an oil squeezing machine for squeezing oil from an oil-containing material such as fried refuse.

BACKGROUND ART As disclosed in Patent Document 1, an oil squeezing machine for squeezing oil from oil-containing materials such as tempura dregs, frying dregs, and other fried dregs, and a hopper that throws the oil-containing materials and stirring blades that rotate in this hopper, are disclosed. A pressurizing cylinder formed with a supply port communicating with the lower part of the hopper and a perforation below the supply port, a piston reciprocating in the pressurizing cylinder, and an oil-containing material facing the piston and between the piston. It is equipped with a pressing member that squeezes the oil, and a drive device that operates the stirring blade and the piston, and stirs the oil impregnated material that has been put into the hopper by the rotation of the stirring blade, and this oil impregnated material is supplied from the lower supply port of the hopper. It is guided into the compression cylinder, and the piston reciprocates in the compression cylinder to squeeze the oil-containing material between the pressing member and the oil to separate the oil, and the oil is dropped and supplied to the oil recovery container. It is configured to discharge to.

Japanese Patent No. 5336992

In the above-mentioned conventional technique, the stirring blade and the piston are driven by the power from one driving device (motor), and the stirring blade and the piston are driven simultaneously and continuously. Even when is not present in the hopper, the piston, which requires a large load for driving, is operated, resulting in high operating cost.
An object of the present invention is to provide an oil squeezing method and an oil squeezing machine capable of solving the problems of the conventional art.

It is an object of the present invention to provide an oil squeezing method capable of stopping the operation of the piston and restarting the operation when necessary even when the stirring blade is rotated, and reducing the operating cost.
The present invention relates to an oil squeezing machine in which the stirring blade and the piston are driven by separate motors, and during the rotation of the stirring blade, the operation of the piston is stopped and the operation is restarted when necessary to reduce the operating cost. The purpose is to provide.

The concrete means for solving the problems in the present invention is as follows.
In the oil pressing method, first, the oil impregnated material U charged in the hopper 3 is stirred by the rotation of the stirring blades 4, and the oil impregnated material U is guided from the lower guide port 6a of the hopper 3 into the compression cylinder 6, A method for squeezing the oil-containing material U between the piston 7 and the pressing mechanism 9 by reciprocating the piston 7 in the squeezing cylinder 6 to separate oil.
The reciprocating movement of the piston 7 is stopped during the rotation of the stirring blade 4, and the reciprocating movement of the piston 7 is restarted after the resistance to the rotation of the stirring blade 4 is sensed.

Secondly, in the oil squeezing method, the stirring blade 4 is rotated for a time set by a stirring timer KT, and the piston 7 is reciprocated for a time shorter than the stirring timer KT set time set by a compression timer AT,
After the set time of the compression timer AT expires and before the set time of the stirring timer KT expires, the compression timer AT is restarted when a resistance to the rotation of the stirring blade 4 is sensed.

Thirdly, in the oil squeezing method, the piston 7 is stopped at the advanced position F that closes the guide port 6a when the set time of the compression timer AT expires, and the retracted position E that opens the guide port 6a when the set time of the stirring timer KT expires. The piston 7 is retracted up to.
Firstly, the oil crusher includes a hopper 3 for feeding the oil-containing material U, a stirring mechanism 5 having a stirring blade 4 rotating in the hopper 3, a guide port 6a communicating with a lower portion of the hopper 3, and a guide port 6a. An oil impregnation is provided between the compression cylinder 6 having a lower porous portion 6b, a compression mechanism 8 for reciprocating the piston 7 in the compression cylinder 6 over the guide port 6a, and the piston 7 facing the piston 7. And a pressing mechanism 9 for pressing the material U,
The stirring mechanism 5 includes a stirring motor KM that rotates the stirring blade 4 and a stirring sensor KS that detects the rotation resistance of the stirring blade 4.
The compression mechanism 8 is characterized by having a compression motor AM that reciprocates the piston 7 and a cooperation mechanism 11 that operates the compression motor AM by sensing the rotational resistance of the stirring sensor KS of the stirring mechanism 5.

Secondly, the oil squeezing machine has a stirring timer KT for rotating the stirring blade 4 for a set time.
The compression mechanism 8 has a compression timer AT for operating the piston 7 for a shorter time than the stirring timer KT,
The stirring mechanism 5 has a torque limiter 12 for stopping the rotation of the stirring blade 4 by resistance, and the stirring sensor KS can detect the rotation stop of the stirring blade 4 for a certain period of time.

Thirdly, the agitator 5 has a position sensor PS that detects the piston 7 retracted to the retracted position E where the guide port 6a is opened when the set time of the agitation timer KT expires and stops the compression mechanism 8. And
The compression mechanism 8 has a position sensor PS that stops the piston 7 at the advanced position F that closes the guide port 6a when the set time of the compression timer AT expires.

Fourthly, the oil crusher is characterized in that the stirring blade 4 has a guide surface G for guiding the oil-containing material U in the hopper 3 to the guide port 6a by rotation.
Fifthly, the stirring blade 4 is provided with a pair of blade members 4A and 4B on the rotary shaft 13 near the guide port 6a, and the blade members 4A and 4B are arranged so that the impregnated material U faces inward. It is characterized by having an inward guiding surface G1 for pushing and a lower guiding surface G2 for pushing downward.

According to the present invention, the operation of the piston can be restarted only when necessary, and the operating cost can be reduced.
That is, in the invention according to claim 1, the reciprocating movement of the piston 7 is stopped during the rotation of the stirring blade 4, and the reciprocating movement of the piston 7 is restarted after the resistance to the rotation of the stirring blade 4 is sensed. The operation of the piston 7 that requires a long time can be performed only when necessary, and the operating cost can be reduced.

In the invention according to claim 2, the operation of the piston 7 is stopped at the set time of the compression timer AT set shorter than the set time of the stirring timer KT, and the compression timer AT is restarted when the resistance to the rotation of the stirring blade 4 is sensed. Since the piston is reciprocally moved, the piston 7 can be operated only when necessary by controlling the set time of the stirring timer KT and the compression timer AT and detecting the rotational resistance of the stirring blade 4.

In the invention according to claim 3, since the piston 7 is stopped at the advanced position F where the guide port 6a is closed when the set time of the compression timer AT has expired, the operation can be restarted quickly after the piston 7 is stopped, and stirring can be performed. Since the piston 7 is retracted to the retracted position E where the guide port 6a is opened when the set time of the timer KT has expired, the pressing cylinder 6 can be cleaned easily and quickly after the operation is completed.

In the invention according to claim 4, since the stirring blade 4 and the piston 7 are driven by separate motors, the operation of the piston 7 can be easily stopped, and the rotation resistance of the stirring blade 4 is detected by the stirring sensor KS to cooperate with the cooperation mechanism 11 The reciprocating movement of the piston 7 can be restarted via the.
In the invention according to claim 5, the stirring blade 4 is rotated for the stirring timer KT set time, the piston 7 is stopped at the expiration of the compression timer AT setting time shorter than the stirring timer KT, and the stirring blade 4 is rotated by resistance by the torque limiter 12. When it is stopped, it can be detected by the stirring sensor KS, and the reciprocating movement of the piston 7 can be restarted only when the necessity is sensed.

In the invention according to claim 6, the position sensor PS detects the piston 7 retracted to the retracted position E where the guide port 6a is opened when the set time of the stirring timer KT expires, and the compression mechanism 8 is stopped. 7 can be arranged at a position that does not hinder the cleaning of the compression cylinder 6, and the piston 7 is stopped via the position sensor PS at the advanced position F where the guide port 6a is closed when the set time of the compression timer AT expires. It is possible to quickly confirm the presence of the oil-containing material U in the hopper 3 after the stop and restart the operation of the piston 7.

In the invention according to claim 7, since the stirring blade 4 has the guide surface G for guiding the oil-containing material U in the hopper 3 to the guide port 6a by the rotation, the oil-containing material U is surely guided to the compression cylinder 6. You can
In the invention according to claim 8, the pair of blade members 4A, 4B on the rotary shaft 13 have an inner guide surface G1 for pushing the oil-containing material U inwardly and a lower guide surface G2 for pushing downward. Therefore, the rotation resistance can be detected quickly and accurately by the stirring blade 4.

It is a section front view showing an embodiment of the present invention. It is a perspective view of a main part. FIG. It is the XX sectional view taken on the line of FIG. It is a perspective view of a stirring mechanism. It is the YY sectional view taken on the line of FIG. It is a schematic flow diagram of an oil pressing operation.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 6, the oil crusher 1 includes a hopper 3 for feeding an oil-containing material U, a stirring mechanism 5 having stirring blades 4, a squeezing cylinder 6 communicating with a lower portion of the hopper 3, and a squeezing cylinder 6 on the pedestal 21. A compression mechanism 8 that reciprocates the piston 7 in the cylinder 6 and a pressing mechanism 9 that faces the piston 7 are provided, and a receiving tray 22 is provided on the lower surface side of the device base 21, and below the receiving tray 22. An oil recovery container and a waste container (not shown) are removably arranged.

The device table 21 is a flat plate supported on the upper surface of the device frame 23, and has an oil drop port 21a and a dregs drop port 21b formed above the tray 22 and above the oil drop port 21a. A middle portion is arranged, and a portion where the compression cylinder 6 and the pressing mechanism 9 face each other is arranged above the residue dropping port 21b.
The compression cylinder 6 is a cylindrical body whose both longitudinal ends are open, and a guide port 6a communicating with the lower part of the hopper 3 is formed in the upper part of the middle of the cylinder in the longitudinal direction, and the lower half of the guide port 6a facing the guide port 6a is formed. Pores 6b through which the oil B is discharged are formed, and a large number of the pores 6b are formed at intervals in the axial direction and the circumferential direction.

The compression cylinder 6 is fixed to the device base 21 via the left and right mounting bodies 24 with its axis horizontally arranged in the horizontal direction, and the piston 7 is reciprocally inserted therein.
The piston 7 is a solid circular body, and the front end of the crank rod 25 is swingably connected to the rear portion through a pin. The crank rod 25 has an eccentric pin 26 rotatably at the rear portion, and is connected to the rotary plate 27 via the eccentric pin 26.

Reference numeral AM in FIG. 1 denotes a compression motor (geared motor), which is fixed to a support base 28 fixed on the device base 21, and the rotary plate 27 is attached to a vertical output shaft 29 of the compression motor AM. The rotation plate 27 is rotated on a horizontal plane by the rotation of the output shaft 29 having a vertical axis shape, and the eccentric pin 26 is eccentrically moved through the rotation plate 27, so that the piston 7 is reciprocated through the crank rod 25. do.

The compression motor AM is located directly above the crank rod 25, is arranged in parallel with the hopper 3 that is long in the vertical direction, and is configured so that the front-rear width of the oil pressing machine 1 can be narrowed.
The support base 28 supports two rollers 28a that roll with the outer peripheral surface of the rotary plate 27, and constitutes a backup member that receives a load when the piston 7 makes a compression motion. Further, the compression motor AM is located directly above the crank rod 25, the rotary plate 27, the roller 28a, etc., and is arranged in parallel with the hopper 3 which is long in the vertical direction, so that the front and rear width of the oil pressing machine 1 can be narrowed. doing.

A compression mechanism 8 is constituted by the piston 7, the crank rod 25, the compression motor AM, etc., and this compression mechanism 8 detects when the piston 7 and the crank rod 25 reach the retracted position E where the guide port 6a is opened. A position sensor PS is also provided,
It should be noted that, after a certain period of time from the detection of the position sensor PS, the piston 7 advances to the advance position (compression position) F that closes the guide port 6a, and the position sensor PS becomes a sensor that detects and sets the advance position F. It is also becoming.

1 to 3, the pressing mechanism 9 includes a pressing body 30 having a conical portion 30a at the front end and a sliding shaft portion 30b at the rear end and arranged concentrically with the compression cylinder 6, and a sliding shaft portion 30b. The fitted spring 31, the adjuster 32 that supports the pressing body 30 so as to be slidable in the axial direction, the holder 33 that supports the adjuster 32 so that the position of the adjuster 32 can be adjusted in the axial direction, and the holder 33 can be attached to and detached from the apparatus base 21. And a fixing mechanism 36 for freely fixing.

The fixing mechanism 36 includes an engaging member 37 fixed to the device base 21 and the mounting body 24, and an engaging protrusion that projects outward from the holder 33 and engages with the engaging member 37 detachably. 33 a, a fixed base 38 fixed to the device base 21, a mounting body 40 pivotally supported by the fixed base 38 and having an engagement groove 39 on a side wall, and a mounting base 40 protruding outward from the holder 33. It has the fastening part 33b inserted in the engagement groove 39.

The engaging groove 39 of the mounting body 40 is substantially L-shaped when viewed from the front, and engages the engaging protrusion 33a of the holder 33 with the engaging member 37 and the fastening portion 33b of the holder 33 with the engaging groove of the mounting body 40. By engaging the vertical portion of 39, the holder 33 is fixed to the device base 21.
When the mounting body 40 is slightly raised from the fixed state so that the substantially horizontal portion of the engagement groove 39 faces the fastening portion 33b, the engagement protrusion 33a of the holder 33 can be detached from the engagement member 37. When the mounting body 40 is rotated with respect to the fixed base 38, the mounting body 40 can be lifted together with the holder 33. When the pressing cylinder 6 is cleaned, the pressing body 30 is separated from the pressing cylinder 6.

The conical portion 30a of the pressing body 30 is inserted into the end portion of the compression cylinder 6, receives and squeezes the oil-containing material U pushed by the piston 7, and moves against the spring 31 by the squeezing force. A gap is formed between the compression cylinder 6 and the end of the compression cylinder 6, and the dust is discharged from the gap. The resistance force of the spring 31 is adjusted by adjusting the axial position of the adjuster 32.

1 to 6, the hopper 3 provided above the compression cylinder 6 has an inverted quadrangular pyramid and a substantially vertical substrate 3a having three plate members fixed thereto, and a mounting plate 3b fixed to the lower portion. The mounting plate 3b is mounted on a mounting base 41 that stands upright from the device base 21. A portion forming the guide port 6a of the squeezing cylinder 6 is also attached to the mounting table 41, and the mounting plate 3b and the mounting table 41 are connected to the guide port (supply port) communicating with the guide port 6a of the squeezing cylinder 6. ) Has been formed.

The upper part of the hopper 3 has a wide opening, and an auxiliary hopper 43 is provided on the upper part of the hopper 3. The auxiliary hopper 43 is provided with a lattice-like foreign substance input prevention fence 44. ..
A stirring mechanism 5 is supported on the hopper 3. A rotary shaft 13D near the guide port 6a and a rotary shaft 13U above the guide shaft 6a are rotatably provided between the substrate 3a of the hopper 3 and a plate member facing the base plate 3a. The blade members 4A and 4B are provided, and the upper rotary shaft 13U is provided with one blade member 4C. Each of the blade members 4A, 4B, 4C has a shape in which a hole for fitting with the rotating shafts 13U, 13D is formed in the center of the strip plate and both sides thereof are twisted in opposite directions.

The pair of blade members 4A, 4B form an inner guide surface G1 that pushes the oil-containing material U inwardly and a lower guide surface G2 that pushes the oil-impregnated material U in opposite directions, and the twisting directions are opposite to each other. In the axial direction of the rotary shaft 13U, they are substantially directly opposed to each other, and they are arranged at positions substantially corresponding to each other just above the guide port 6a.
That is, the blade members 4A, 4B have a substantially symmetrical shape in the axial direction, and the inner guide surface G1 and the lower guide surface G2 are curved surfaces that are three-dimensionally curved, and the curved surface portions mainly oriented in the axial direction are inside. The guide surface G1 is a downward guide surface G2 that is a curved surface portion that is directed toward the inner direction while cutting into the oil impregnated material U and is mainly directed in the radial direction. It has the function of pushing.

The vane member 4C is arranged substantially at the center in the axial direction of the upper rotary shaft 13U, and like the vane member 4A, has a three-dimensionally curved inner guide surface G1 and lower guide surface G2. The guide surface G1 pushes the oil-impregnated material U fed from above and pushes it toward the substrate 3a side, and the lower guide surface G2 pushes the oil-impregnated material U downward to prevent generation of bridges in the fed oil-impregnated material U. On the other hand, the blade members 4A and 4B are supplied. A plurality of blade members 4C may be provided on the rotary shaft 13U.

A drive mechanism for rotating the stirring blade 4 is provided on the back side of the substrate 3a of the hopper 3. The drive mechanism of the stirring mechanism 5 includes a stirring motor KM and a gear group that rotate the stirring blade 4, a torque limiter 12 that stops the rotation of the stirring blade 4 by resistance, and a stirring sensor KS that detects the rotation resistance of the stirring blade 4. It has and.
The lower rotary shaft 13D is provided with a first gear 50, an idler gear 51 is meshed with the first gear 50, and the upper rotary shaft 13U is provided with a second gear 52. A drive gear 53 meshes with the idler gear 51, and the drive gear 53 is interlocked with the output shaft of the stirring motor KM via the torque limiter 12.

The stirring motor KM simultaneously drives the first gear 50 and the second gear 52 in the same direction to rotate the rotary shafts 13U and 13D, but when a large resistance is applied to the blade members 4A, 4B, and 4C, the torque limiter 12 operates. Then, the stirring motor KM rotates, but the rotation of the rotating shafts 13U and 13D is stopped.
The stirring sensor KS detects a signal generated at a constant interval by the rotation of the first gear 50, and the signal is not generated for a fixed time, that is, the rotation stop of the stirring blade 4 for a fixed time can be detected. The detection signal is applied to the operation of the compression mechanism 8. When the piston 7 is reciprocating, the stirring sensor KS does not operate.

Next, the oil extraction method will be described based on the schematic flow chart of the oil extraction operation in FIG. 7 and FIGS.
The oil pressing machine 1 has two types of operation modes, a normal operation mode and an eco operation mode. The normal operation mode is a mode in which the stirring motor KM and the compression motor AM are simultaneously operated and stopped at the same time. When the oil-containing material U is put into the hopper 3 and the stirring motor KM and the compression motor AM are operated, the stirring is performed. The blades 4 rotate to stir the oil-containing material U, guide the oil-containing material U from the lower guide port 6a of the hopper 3 into the compression cylinder 6, and in the compression cylinder 6, the piston 7 faces the pressing mechanism 9. And reciprocates to squeeze the oil-containing material U between the pressing mechanism 9 and the oil, and after squeezing all the oil-containing material U, the operations of the stirring motor KM and the compression motor AM are stopped.

In the eco-drive mode in FIG. 7, the eco-drive mode switch 60 is turned on after the oil-containing material U is put into the hopper 3 or before it, and the stirring timer KT and the compression timer AT are operated. The set times of the agitation timer KT and the compression timer AT can be set variously. For example, if the agitation timer KT is 30 minutes, 60 minutes, etc., the compression timer AT is set to 5 minutes, 10 minutes, etc. shorter than the agitation timer KT.

The agitation motor KM and the compression motor AM are operated by the operation of the switches of the agitation timer KT and the compression timer AT, and the agitation blade 4 agitates the oil-containing material U and the oil-containing material U of the hopper 3 by the rotation of the agitation motor KM. It guides in the compression cylinder 6 from the lower guide port 6a. Further, the rotation of the compression motor AM causes the piston 7 to reciprocate toward the pressing mechanism 9 and to squeeze the oil-containing material U between the pressing body 30 and discharge the oil from the inside of the compression cylinder 6.

The compression operation of the piston 7 is performed within the set time of the compression timer AT, and the compression motor AM is stopped after the set time of the compression timer AT expires. At this time, when the position sensor PS detects the position of the piston 7 and a predetermined time has elapsed, when the piston 7 reaches the advanced position (compression position) F that closes the guide port 6a, the piston 7 is stopped.
When the oil-impregnated material U is not newly charged, the stirring motor KM is stopped after the stirring timer KT expires the set time. At this time, when the compression motor AM is slightly actuated and the piston 7 is retracted to the retracted position E where the guide port 6a is opened, the position sensor PS operates and the operation ends (operation end 62).

If the setting time of the agitation timer KT has not expired even after the set time of the compression timer AT has expired, the compression motor AM is stopped but the agitation motor KM continues to rotate, and the oil-containing material U is newly added there. Then, the stirring blade 4 stirs the oil-containing material U and guides it to the guide port 6a at the bottom of the hopper 3.
At this time, since the piston 7 is in the advanced position F that closes the guide port 6a, the filling amount of the oil impregnated material U in the lower part of the hopper 3 increases rapidly, and the stirring blade 4 receives the rotation resistance from the full oil impregnated material U. When the rotation resistance becomes larger than the set value of the torque limiter 12, the stirring blade 4 stops rotating and stops.

When the stirring sensor KS senses a resistance to stop the rotation of the stirring blade 4, the signal is transmitted to the compression timer AT via the cooperation mechanism 11, the compression timer AT is operated again, and the compression motor AM of the compression mechanism 8 is restarted. Then, the piston 7 is reciprocated for the set time of the compression timer AT.
The compression motor AM of the compression mechanism 8 can be restarted many times by using the circulation mechanism 61 until the set time of the stirring timer KT expires, and when the set time of the stirring timer KT expires, the stirring mechanism 5 and the compression mechanism AM are compressed. The mechanisms 8 are stopped together and the operation is stopped 62.

When the oil-containing material U is put into the hopper 3 while the stirring mechanism 5 is stopped, the eco-drive mode switch 60 is turned on again.
It should be noted that the present invention is not limited to the above embodiment, and the shape, configuration, combination, etc. of the members can be changed.
For example, the stirring sensor KS that senses the rotation resistance of the stirring blade 4 may be a sensor that directly detects an increase in the load on the stirring motor KM instead of detecting the rotation stop of the first gear 50.

Further, a position sensor PS for detecting the position of the piston 7 when the piston 7 reaches the advance position F for closing the guide port 6a is provided, and the piston 7 is operated by the operation of the position sensor PS when the set time of the compression timer AT expires. It may be stopped.
Further, even when the set time of the compression timer AT expires, the piston 7 may be retracted to the retracted position E where the guide port 6a is opened, as in the case after the set time of the stirring timer KT has expired.

1 Oil Cutter 3 Hopper 4 Stirring Blade 5 Stirring Mechanism 6 Compressing Cylinder 6a Guide Port 6b Porous 7 Piston 8 Compressing Mechanism 9 Pressing Mechanism 11 Cooperation Mechanism 12 Torque Limiter 13 Rotating Shaft AM Compression Motor AT Compression Timer E Retreat Position F Advance Position G2 Downward Guide surface G1 Inner guide surface G Guide surface KM Stirring motor KS Stirring sensor KT Stirring timer PS Position sensor U Oil-containing material

Claims (8)

The oil impregnated material (U) charged into the hopper (3) is stirred by the rotation of the stirring blade (4), and the oil impregnated material (U) is compressed from the guide port (6a) at the lower part of the hopper (3) to the compression cylinder (6). ), and the piston (7) reciprocates in the compression cylinder (6) to squeeze the oil-containing material (U) with the pressing mechanism (9) to separate the oil. ,
The reciprocating movement of the piston (7) is stopped during the rotation of the stirring blade (4), and the reciprocating movement of the piston (7) is restarted after detecting the resistance to the rotation of the stirring blade (4). Oiling method. The stirring blade (4) is rotated for a time set by a stirring timer (KT), and the piston (7) is reciprocated for a time shorter than the stirring timer (KT) set time set by a compression timer (AT),
After the expiration of the set time of the compression timer (AT) and before the expiration of the set time of the stirring timer (KT), the compression timer (AT) is reactivated when a resistance is detected in the rotation of the stirring blade (4). The oil extraction method according to claim 1, characterized in that. When the set time of the compression timer (AT) expires, the piston (7) is stopped at the advanced position (F) that closes the guide port (6a), and the guide port (6a) is opened when the set time of the stirring timer (KT) expires. The oil extraction method according to claim 2, wherein the piston (7) is retracted to the retracted position (E) where it is opened. A hopper (3) for feeding the oil-containing material (U), a stirring mechanism (5) having a stirring blade (4) rotating in the hopper (3), and a guide port (6a) communicating with the lower part of the hopper (3). ) And a perforation (6b) below the guide port (6a), and a piston (7) reciprocating in the press cylinder (6) beyond the guide port (6a). A compression mechanism (8) and a pressing mechanism (9) facing the piston (7) and squeezing the oil-containing material (U) between the piston (7),
The stirring mechanism (5) has a stirring motor (KM) for rotating the stirring blade (4) and a stirring sensor (KS) for detecting the rotation resistance of the stirring blade (4).
The compression mechanism (8) cooperates with a compression motor (AM) that reciprocates the piston (7) and a compression motor (AM) that operates the compression motor (AM) by sensing the rotational resistance of the stirring sensor (KS) of the stirring mechanism (5). 11) and an oil press. The stirring mechanism (5) has a stirring timer (KT) for rotating the stirring blade (4) for a set time,
The compression mechanism (8) has a compression timer (AT) for operating the piston (7) for a shorter time than the stirring timer (KT),
The stirring mechanism (5) has a torque limiter (12) that stops rotation of the stirring blade (4) by resistance, and the stirring sensor (KS) can detect rotation stop of the stirring blade (4) for a certain period of time. The oil extractor according to claim 4, wherein the oil extractor is present. The stirring mechanism (5) detects the piston (7) retracted to the retracted position (E) that opens the guide port (6a) when the set time of the stirring timer (KT) expires, and stops the compression mechanism (8). It has a sensor (PS),
The compression mechanism (8) has a position sensor (PS) that stops the piston (7) at the advanced position (F) that closes the guide port (6a) when the set time of the compression timer (AT) expires. The oil pressing machine according to claim 5, which is characterized in that. 7. The stirring blade (4) has a guide surface (G) for guiding the oil-containing material (U) in the hopper (3) to the guide port (6a) by rotation, according to any one of claims 4 to 6. The oil press according to item. The stirring blade (4) is provided with a pair of blade members (4A, 4B) on the rotating shaft (13) near the guide port (6a), and each blade member (4A, 4B) is an oil-containing material (U). The oil squeezing machine according to claim 7, further comprising an inner guide surface (G1) that pushes the two toward each other and a lower guide surface (G2) that pushes the two below.

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