JP2013244475A - Centrifuge, control mechanism used for the same, and processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a centrifuge which can prevent a material to be processed and a housing container which houses the material to be processed from being damaged due to a temperature rise based on heat generated by processing the material to be processed.SOLUTION: A centrifuge 1 includes a revolving body 20, a rotating body 30, a housing container 50, a drive section 60, a detecting section 70 and a first control section. The revolving body 20 can revolve around a revolving axis L1 as the center. The rotating body 30 is retained by the revolving body 20 and can rotate around a rotating axis L2. The housing container 50 rotates together with the rotating body 30 and houses a material M to be processed. The drive section 60 makes the revolving body 20 revolve and the rotating body 30 rotate. The detecting section 70 detects temperature information on the material M to be processed. The first control section controls the drive section 60 so that the rotating body 30 rotates at a low rotation speed when the revolving body 20 revolves if the temperature of at least either the material M to be processed or the housing container 50 is determined to be higher than the upper limit, on the basis of the temperature information detected by the detecting section 70.

Description

  The present invention relates to a centrifuge for processing by rotating a material to be processed while rotating, and a processing method. In addition, the present invention relates to a control mechanism used in a centrifuge.

  2. Description of the Related Art There is known a centrifuge (rotation and revolution type centrifuge) that processes a material to be processed stored in the storage container by rotating the storage container while revolving. This centrifuge is used as a stirring and defoaming device as disclosed in Patent Document 1, for example, and simultaneously performs a stirring process and a defoaming process on a material to be processed. The centrifuge is used as a ball mill for pulverizing the material to be processed (see Patent Document 2), an emulsifying device for emulsifying the material to be processed (see Patent Document 3), and the like.

Japanese Patent No. 4084493 Japanese Patent Laid-Open No. 2002-143706 JP 2010-194470 A

  Here, in a centrifuge, a material to be processed and a storage container that stores the material to be processed may be damaged by a temperature rise based on heat generated by processing the material to be processed.

  The present invention has been made in view of the above circumstances, and prevents the material to be processed and the storage container for storing the material to be damaged from being damaged by a temperature rise based on heat generated by processing the material to be processed. An object of the present invention is to provide a centrifuge that can be used. In addition, an object of the present invention is to provide a control mechanism used in a centrifuge and a method for processing a material to be processed.

One embodiment of the present invention is:
A revolution body rotatable around the revolution axis,
A rotating body that is held by the revolution body and is rotatable about a rotation axis;
A storage container that rotates together with the rotating body and stores a material to be processed;
A drive unit for rotating the revolution body and the rotation body;
A detection unit for detecting temperature information;
When the temperature of at least one of the material to be processed and the storage container is determined to be equal to or higher than the upper limit based on the temperature information detected by the detection unit, the rotation of the rotating body in a state where the revolution body is rotated. A first control unit that controls the drive unit so that the speed becomes a low rotation speed lower than the normal rotation speed, or the rotation of the rotating body stops.
A centrifuge is provided.

  In this centrifuge, the first control unit can promote the temperature drop of the material to be processed and the storage member that stores the material to be processed. Thereby, this centrifuge can prevent that the to-be-processed material and the storage container which stores the to-be-processed material receive a damage by the temperature rise based on the heat | fever generate | occur | produced by the process of to-be-processed material.

In this centrifuge,
Furthermore, based on the temperature information detected by the detection unit, when it is determined that the temperature of the material to be processed and the storage container is lower than the lower limit, the rotation speed of the revolution body and the rotation body is the normal rotation speed. As such, a second control unit that controls the drive unit may be provided.

In this centrifuge,
When the first control unit determines that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value based on the temperature information detected by the detection unit, the rotation speed of the revolution body is normally You may control the said drive part so that it may become a rotational speed different from a rotational speed.

In this centrifuge,
The rotating body has a rotating body body provided with an inflow / outflow portion for allowing the heat medium to flow into and out of the hollow portion by rotating the revolving body about the revolving axis.
The storage container is disposed in a hollow portion of the rotating body,
The inflow / outflow portion may be provided on a wall surface of the rotation body main body that can face upstream or downstream in the rotation direction of the revolution body.

In this centrifuge,
Furthermore, a partition body that partitions a space including a region where the revolution body rotates,
A temperature controller capable of setting the temperature of the heat medium filling the compartment to below freezing point;
May be provided.

In this centrifuge,
Furthermore, you may provide the convex-shaped body which protrudes toward the hollow part of the said division body from the wall surface of the said division body.

Another embodiment of the present invention is:
A control mechanism used in a centrifuge that includes a drive unit that rotates around a rotation axis while rotating a storage container that stores a material to be processed around a rotation axis, and a detection unit that detects temperature information. ,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A control mechanism comprising one control unit is provided.

  In this control mechanism, the first control unit can promote a decrease in the temperature of the material to be processed and the storage member that stores the material to be processed. Thereby, this control mechanism can prevent that the processing material and the storage container storing the processing material are damaged by the temperature rise based on the heat generated by the processing of the processing material in the centrifuge.

Another embodiment of the present invention is:
A process for processing the material to be processed, comprising: a drive unit for rotating the storage container storing the material to be processed around the revolution axis while rotating the container about the rotation axis; and a detection unit for detecting temperature information. A method,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A processing method for performing one control is provided.

  This processing method can promote the fall of the temperature of the material to be processed and the storage member for storing the material to be processed by performing the first control. Thereby, this processing method can prevent that a to-be-processed material and the storage container which stores a to-be-processed material receive damage by the temperature rise based on the heat | fever which generate | occur | produces by the process of a to-be-processed material.

  ADVANTAGE OF THE INVENTION According to this invention, it uses for the centrifuge and centrifuge which can prevent to-be-processed material and the storage container which stores a to-be-processed material being damaged by the temperature rise based on the heat which generate | occur | produces by the process of to-be-processed material. A control mechanism and a method for processing a material to be processed can be provided.

The schematic sectional drawing of the centrifuge which concerns on this Embodiment. The block diagram explaining a control mechanism. The flowchart which shows operation | movement of a centrifuge.

  Embodiments to which the present invention is applied will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments. That is, all the configurations described in the following embodiments are not necessarily essential to the present invention. Further, the present invention includes those in which the following contents are freely combined and those in which changes are made without departing from the gist of the present invention.

(1) Configuration of Centrifuge 1 Hereinafter, the configuration of the centrifuge 1 according to the present embodiment will be described with reference to the drawings. As shown in FIG. 1, the centrifuge 1 rotates together with the rotating shaft 10, the revolution body 20 fixed to the rotation shaft 10, the rotation body 30 attached to the revolution body 20, the balance weight 40, and the rotation body 30. The storage container 50, the drive unit 60 that rotates the revolution body 20 and the rotation body 30, the detection unit 70 that detects temperature information of the material M to be processed, and a space that includes a region where the revolution body 20 rotates is partitioned. A partition body 80 and a temperature controller 90 that controls the temperature of the material to be processed M are provided. Further, as shown in FIG. 2, the centrifuge 1 includes a control mechanism 100 that controls the operation of the centrifuge 1.

  Further, as shown in FIG. 1, the centrifuge 1 includes a support substrate 110 that supports the partition body 80 and the like, and a housing 120 that houses the above-described components including the support substrate 110. Furthermore, the centrifuge 1 may be provided with a vibration isolating means (not shown) configured by a vibration isolating wire, a vibration isolating spring, or the like for supporting the support substrate 110 and preventing the vibration. The centrifuge 1 processes the material to be processed M stored in the storage container 50. More specifically, the centrifuge 1 rotates the storage container 50 while revolving, thereby stirring and removing the material to be processed M. It is to foam, pulverize, emulsify, etc.

  As shown in FIG. 1, the rotating shaft 10 is configured to rotate around a revolution axis L1 that is a virtual straight line. In addition, you may comprise the rotating shaft 10 so that it may rotate centering on the revolution axis L1 extended perpendicularly so that it may show in figure. However, the rotating shaft 10 is not limited to this, and may be configured to rotate around the revolution axis L1 extending horizontally, for example.

  As shown in FIG. 1, the revolution body 20 is fixed to the rotation shaft 10 and rotates around the revolution axis L <b> 1 together with the rotation shaft 10. The revolution body 20 includes a first arm 22 for attaching a rotation body 30 that extends in one direction orthogonal to the revolution axis L1 and bends in the middle, and extends in a direction opposite to the first arm 22 and is attached with a balance weight 40. A second arm 24.

  As shown in FIG. 1, the rotating body 30 has a bottomed shape and a hollow portion 31, and includes a rotating body main body 32 having an open upper end side and a rotating shaft 34 attached to the bottom of the rotating body main body 32. Further, the rotation body 30 has a predetermined rotation axis 34 from the revolution axis L1 to the first arm 22 of the revolution body 20 via the bearing 36, more specifically, via the bent portion of the first arm 22. It is rotatably mounted at a distance. Thereby, the autorotation body 30 revolves around the revolution axis L <b> 1 as the revolution body 20 rotates. In addition, the rotating body 30 can rotate around the rotation axis L <b> 2 that is a virtual straight line passing through the revolution body 20.

  The rotation body 30 is attached to a position separated from the revolution axis L1 by a predetermined distance via the bent portion of the first arm 22, so that the rotation axis L2 that is the rotation center of the rotation body L2 has a predetermined distance with respect to the revolution axis L1. Cross diagonally at an angle. This angle is not limited, but may be 45 degrees as shown, for example. Further, the rotating body 30 may be configured such that the rotation axis L2 that is the center of rotation does not intersect the revolution axis L1 by not providing a bent portion in the first arm 22.

  As shown in FIG. 1, the rotating body main body 32 communicates the hollow portion 31 with the outside of the rotating body main body 32, and is used as an inflow / outlet of the heat medium that fills the outside of the rotating body main body 32 to the hollow portion 31. The inflow / outflow part 33 is provided. The heat medium may be a gas such as air, nitrogen gas, helium gas. As a modification, it is also assumed that a liquid such as oil is used as the heat medium.

  The inflow / outflow portion 33 is provided on the wall surface of the rotation body main body 32 that can face the upstream or downstream in the rotation direction of the revolution body 20. That is, in the present embodiment, the inflow / outflow portion 33 is provided on the wall surface of the rotation body main body 32 positioned in a direction orthogonal to the rotation axis L2. You may comprise this inflow / outflow part 33 so that arbitrary numbers may be provided.

  As shown in FIG. 1, the balance weight 40 is attached to the second arm 24 of the revolution body 20 so that the distance from the revolution axis L1 can be changed. The balance weight 40 is used to adjust the balance of the revolution body 20, and the centrifuge 1 is stably operated by appropriately adjusting the distance from the revolution axis L1.

  As shown in FIG. 1, the storage container 50 is formed in a cylindrical shape having a bottom, and a main body 52 that can store the material M to be processed, and a lid 54 that seals an opened portion of the main body 52. Is provided.

  The main body 52 is made of a material such as resin, metal, glass, zirconia. The main body 52 is inserted into the hollow portion 31 of the rotating body main body 32 of the rotating body 30 from the bottom side thereof, so that the main body portion 52 is attached to the rotating body main body 32 and is centered on the revolution axis L1 together with the rotating body main body 32. It is configured to be revolved and capable of rotating about the rotation axis L2. Further, when the main body 52 is attached to the rotating body main body 32, the convex portion 53 protruding from the outer peripheral portion comes into contact with the upper end of the rotating body main body 32, so that the bottom of the rotating body main body 32 is shown in FIG. And in a separated state. Further, the main body 52 is arranged so that a central axis that is a virtual straight line passing through the center of the main body 52 overlaps with the rotation axis L2 when the main body 52 is attached to the rotation body main body 32.

  The main body 52 may be provided with a known fixing mechanism (not shown) or the like for fixing to the autorotation body 32 so that the main body 52 can rotate with the autorotation body 32 more reliably. As a modification, the main body 52 may be arranged so that the center axis of the main body 52 does not overlap with the rotation axis L2 when the main body 52 is mounted on the rotation body main body 32.

  The lid portion 54 is attached to an opened portion of the main body portion 52 and includes an inner lid 55 and an outer lid 57 as shown in FIG. The outer lid 57 is attached to the main body 52 using a screw mechanism (not shown) that enables the inner lid 55 to be screwed to the main body 52 after the inner lid 55 is attached to the opened portion of the main body 52, for example.

  The drive unit 60 rotates the revolution body 20 and the rotation body 30 to rotate the storage container 50 around the revolution axis L1 while rotating around the revolution axis L1, and is shown in FIG. Thus, the motor 61, the pulley 62, the pulley 63, the belt 64, and the rotation force provision mechanism 65 are provided. The motor 61 is fixed to the support substrate 110, and uses a pulley 62 fixed to the rotation shaft, a pulley 63 fixed to the rotation shaft 10, and a belt 64 wound around the pulley 62 and the pulley 63. The container 50 is revolved around the revolution axis L1 by applying a rotational force to the rotation shaft 10 and rotating the revolution body 20.

  The rotation force applying mechanism 65 includes a rotation gear 66 fixed to the rotation shaft 34 of the rotation body 30, a rotation force applying gear 67 fixed to the support substrate 110 so as to be concentric with the rotation shaft 10, a rotation gear 66, And a rotation power transmission gear 68 that transmits power between the rotation force applying gears 67. The rotation power transmission gear 68 is rotatably attached to the revolution body 20 via a bearing 69, and a first gear that meshes with the rotation gear 66 and a second gear that meshes with the rotation force applying gear 67 are fixed. Consists of.

  With the above configuration, the rotation force application mechanism 65 associates the rotation angular speeds of the rotation gear 66 and the rotation force application gear 67 with the rotation power transmission gear 68, and thus the rotation gear 66 and the rotation force application gear 67. Shows the same behavior as the planetary gear mechanism. Accordingly, the rotation force applying mechanism 65 rotates the rotation gear 66 at a rotation speed corresponding to the rotation speed at which the revolution body 20 rotates by the motor 61. Thereby, the rotation force provision mechanism 65 rotates the storage container 50 around the rotation axis L2.

  As shown in FIG. 1, the detection unit 70 is attached to the storage container 50 and detects temperature information of the processing material M stored in the storage container 50. The detection unit 70 may detect the temperature information by contacting the material to be processed M, and detect the temperature information in a non-contact manner with the material to be processed M as illustrated. Also good. Further, the detection unit 70 sends the detected temperature information of the material M to be processed to the CPU 102 shown in FIG. 2 via a wireless line such as infrared communication and an interface unit provided as necessary.

  As shown in FIG. 1, the partition body 80 has a bottomed shape and has a hollow portion 81, and an upper end side that is open. A lid portion 82 that is attached to the opened portion so as to be opened and closed, and the partition body 80. And a convex body 84 projecting from the wall surface toward the hollow portion 81. The partition body 80 partitions a space including a region where the revolving body 20 rotates. By opening the lid 82, the rotation body main body 32 of the rotation body 30 is exposed, and the storage container 50 is moved to the rotation body main body. 32 is detachable. Moreover, the partition 80 is comprised with a material with high heat conductivity so that the to-be-processed material M can adjust temperature suitably with the temperature controller 90. FIG.

  As shown in FIG. 1, the convex body 84 is composed of a plate-like member that extends so as to be orthogonal to the circumference centered on the revolution axis L <b> 1, and extends along the bottom surface of the partition body 80. A bottom surface portion 85 that is in contact with each other and a side surface portion 86 that extends along the side surface of the partition 80 and is in contact with the side surface.

  Note that an arbitrary number of the convex bodies 84 may be provided. For example, four convex bodies 84 may be provided at equal intervals. Further, as a modification, the convex body 84 may be configured by only the bottom surface portion 85 extending along the bottom surface of the partition body 80, or may be configured only by the side surface portion 86 extending along the side surface of the partition body 80. . As a modification, the convex body 84 may have a shape extending so as to obliquely intersect the circumference centered on the revolution axis L1.

  As shown in FIG. 1, the temperature controller 90 is a flow path of a heat medium (hereinafter referred to as “thermal fluid”) such as water or oil, and is a pipe-shaped heat exchange unit wound around the outer periphery of the partition body 80. 92, a temperature control unit (not shown) that adjusts the temperature of the thermal fluid, and a pump (not shown) that circulates the thermal fluid temperature controlled by the temperature control unit in the heat exchange unit 92. The temperature controller 90 performs heat exchange between the temperature-controlled thermal fluid flowing in the heat exchanging section 92 and the partition body 80 in order to control the temperature of the material M to be processed stored in the storage container 50. . Thereby, the temperature controller 90 adjusts the temperature of the heat medium filling the compartment 80, and adjusts the temperature of the material M to be processed together with the storage container 50 through the heat medium. Note that the temperature controller 90 can freely adjust the temperature of the thermal fluid flowing in the heat exchanging unit 92 within a predetermined range by the temperature adjusting unit as described above according to the type of the material M to be processed. However, in the following description, it is assumed that the temperature controller 90 is intended to cool the material M to be processed.

  As shown in FIG. 2, the control mechanism 100 includes a microprocessor (CPU 102), a drive control unit 104 that controls the operation of the drive unit 60, and a temperature controller control unit 106 that controls the operation of the temperature controller 90. Prepare.

  The CPU 102 displays the detection unit 70, the operation unit 107 used when the user operates the centrifuge 1, the rotation sensor 108 that detects the rotation speed of the revolution body 20, and the state of the centrifuge 1 and the like for the user. The display unit 109 is connected via a wired or wireless line and an interface unit (not shown) as necessary. The CPU 102 instructs the drive control unit 104 and the temperature controller control unit 106 based on the operating conditions of the centrifuge 1 input from the user via the operation unit 107, information from the detection unit 70, the rotation sensor 108, and the like. In addition, information indicating the state of the centrifuge 1 is displayed on the display unit 109 for the user. The CPU 102 may include a storage unit (not shown) so as to store temperature information of the material M to be processed by the detection unit 70, preset operating conditions of the centrifuge 1, and the like.

  The drive control unit 104 controls the operation of the drive unit 60 based on an instruction from the CPU 102. For example, when an induction motor is employed as the motor 61, the drive control unit 104 supplies AC power with a determined frequency to the motor 61 so that the rotation speed of the revolution body 20 instructed by the CPU 102 can be realized. The temperature controller control unit 106 controls the set temperature of the temperature controller of the temperature controller 90 and the operation of the pump based on an instruction from the CPU 102. The rotation sensor 108 may be configured to detect the rotation speed of the rotating body 30.

(2) Material to be processed M
The material to be treated M applicable to the present embodiment is not particularly limited as long as it behaves as a fluid, and its composition and use are not particularly limited. As the material to be processed M, a material including only a fluid component (resin or the like), a material including a granular component (powder component) in addition to the fluid component, or the like can be applied. Examples of the material to be processed M include adhesives, sealants, liquid crystal materials, mixed materials including phosphors and resins of LEDs, solder pastes, dental impression materials, dental cements (such as hole filling agents), and liquid drugs. Various materials can be applied. Further, as the material to be processed M, a granular (powdered) material and a medium for pulverizing the material (for example, zirconia balls) can be applied. Alternatively, as the material to be processed M, it is possible to apply a fluid to be subjected to an emulsification process.

(3) Processing method of to-be-processed material M The processing method of the to-be-processed material M in the centrifuge 1 is demonstrated with reference to FIG. In S <b> 1, the storage container 50 in which the material to be processed M is stored is attached to the rotation body main body 32 of the rotation body 30 by the user.

  In S <b> 2, the operation of the centrifuge 1 is started based on the operation condition set by the user inputting through the operation unit 107 or the like. That is, the CPU 102 gives an instruction based on the operation condition to the drive control unit 104 and the temperature controller control unit 106. Thereby, the drive control unit 104 controls the motor 61 of the drive unit 60 in order to realize the rotation speed of the revolution body 20 instructed by the CPU 102. Thereby, the revolution body 20 and the autorotation body 30 rotate with the normal rotation speed for processing the to-be-processed material M (henceforth "normal rotation speed"). Accordingly, the storage container 50 revolves around the rotation axis L2 while revolving around the revolution axis L1 at the normal rotation speed, so that the material M to be processed is processed. Further, the temperature controller control unit 106 controls the set temperature of the temperature control unit and the operation of the pump to cool the material M to be processed based on an instruction from the CPU 102. As a result, the heat medium filling the compartment 80 is cooled, so that the material M to be processed is cooled together with the storage container 50 by the heat medium.

  Here, in the centrifuge 1, the material to be processed M is cooled together with the storage container 50 by the temperature controller 90 as described above. However, as the storage container 50 revolves around the revolution axis L1, the temperature of the material to be processed M and the storage container 50 increases due to heat generated by the force acting on the material to be processed M by rotating about the rotation axis L2. May occur. At this time, the temperature of the material to be processed M and the storage container 50 must not exceed the temperature that causes the deterioration or the temperature that promotes the deterioration. Therefore, in S <b> 3, the CPU 102 touches the temperature of the material to be processed M detected by the detection unit 70 and the material to be processed M that has substantially the same temperature as the material to be processed M. It is determined whether or not the temperature of the partial storage container 50 is equal to or higher than a temperature for deteriorating them or a temperature for promoting the deterioration (hereinafter referred to as “upper limit value”). The CPU 102 determines that the temperature of at least one of the material to be processed M and the storage container 50 is an upper limit value (this upper limit value is lower by a predetermined temperature than the temperature at which the material to be processed M and the storage container 50 are deteriorated in consideration of safety). If it is determined that the temperature is higher (Y in S3), the process proceeds to S4. When CPU 102 determines that the temperature of material to be processed M and storage container 50 is equal to or lower than the upper limit values (N in S3), the process proceeds to S7.

  In S <b> 4, the CPU 102 issues an instruction to the drive control unit 104 to reduce the rotation speed of the revolution body 20. Thereby, the drive control unit 104 controls the motor 61 of the drive unit 60 in order to realize the rotation speed of the revolution body 20 instructed by the CPU 102. By this control, the rotational speeds of the revolution body 20 and the rotation body 30 are reduced.

  Here, in the centrifuge 1, the revolving body 20 and the rotating body 30 are rotated at a rotational speed lower than the normal rotational speed (hereinafter referred to as “low rotational speed”), whereby the material to be processed M and the storage container are rotated. A decrease in temperature of 50 can be promoted. This is because when the revolution body 20 and the rotation body 30 are rotated at a low rotation speed, compared to the case where the revolution body 20 and the rotation body 30 are rotated at a normal rotation speed, the processed material M Since the working force is reduced, the heat generation is also reduced (at this time, the processing of the material M to be processed is stopped or slowed down). Further, when the revolution body 20 rotates at a low rotation speed, the heat medium whose temperature is adjusted by the temperature controller 90 flows into the hollow portion 31 from the inflow / outflow portion 33 of the rotation body main body 32 of the rotation body 30 and is stored therein. After exchanging heat with the container 50, it flows out of the main body 32. Thereby, in the centrifuge 1, the fall of the temperature of the to-be-processed material M and the storage container 50 can be promoted compared with the case where the rotation of the revolution body 20 and the autorotation body 30 is simply stopped. The steps of S3 and S4 are collectively referred to as a first control unit.

  In S <b> 5, the CPU 102 determines whether or not the temperature of the material to be processed M and the storage container 50 is sufficiently lowered to be equal to or lower than the lower limit value based on the temperature information of the material to be processed M detected by the detection unit 70. to decide. This lower limit value is a value that is sufficiently lower than the upper limit value, and is a temperature at which the revolving body 20 and the rotating body 30 are again rotated at the normal rotation speed and the processing of the material M to be processed can be resumed. When CPU 102 determines that the temperature of material to be processed M and storage container 50 is lower than the lower limit (Y in S5), the process proceeds to S6. If the CPU 102 determines that the temperature of the material to be processed M and the storage container 50 is equal to or higher than the lower limit (N in S5), the process returns to S4.

  In S6, the centrifuge 1 resumes the processing of the material M to be processed. That is, the CPU 102 issues an instruction to the drive control unit 104 so that the revolution body 20 rotates at the normal rotation speed. Thereby, the drive control unit 104 controls the motor 61 of the drive unit 60 in order to realize the rotation speed of the revolution body 20 instructed by the CPU 102. By this control, the revolution body 20 and the rotation body 30 rotate at the normal rotation speed. The steps S5 and S6 are collectively referred to as a second control unit.

  In S7, the CPU 102 determines whether or not the processing of the material to be processed M has been completed. This determination may be made based on the operating conditions of the centrifuge 1, for example. When CPU 102 determines that processing of material M has been completed (Y in S7), the process proceeds to S8. If CPU 102 determines that processing of material to be processed M has not been completed (N in S7), the process returns to S3.

  In S8, the centrifuge 1 ends its operation. That is, the CPU 102 instructs the drive control unit 104 and the temperature controller control unit 106 to stop the drive unit 60 and the temperature controller 90. Thus, the processing of the material to be processed M in the centrifuge 1 is completed.

(4) Operational Effects Hereinafter, the operational effects exhibited by the centrifuge 1 in the present embodiment will be described.

  In the centrifuge 1, the temperature reduction of the material to be processed M and the storage container 50 can be promoted by performing the steps related to the first control unit. Table 1 shows the results of experiments conducted to confirm this effect. That is, the table shows that after the revolution body 20 and the rotation body 30 are rotated at the normal rotation speed in the centrifuge 1, the temperature of the material M to be processed and the storage container 50 reaches the upper limit value. The measurement result of the to-be-processed material M at the time of performing the step which concerns on 1 control part, and the storage container 50 is shown, and it shows how much temperature fell with time progress with respect to the upper limit. Moreover, in the same table, as a comparative example, after the temperature of the material to be processed M and the storage container 50 reaches the upper limit value, the same measurement is performed when the rotation of the revolution body 20 and the rotation body 30 is simply stopped. The results are also shown.

  As is clear from Table 1, in the centrifuge 1, it is possible to promote a decrease in the temperature of the material to be processed M and the storage container 50 by the steps related to the first control unit. Therefore, the centrifuge 1 can prevent the material to be processed M and the storage container 50 from being damaged by the temperature rise based on the heat generated by the processing of the material to be processed M.

  In addition, as another method for promoting the decrease in the temperature of the material to be processed M and the storage container 50, it is conceivable to improve the cooling capacity of the temperature controller 90. However, improving the cooling capacity of the temperature controller 90 has disadvantages such as high cost and large size. On the other hand, the centrifuge 1 does not cause such a demerit.

  Further, in the centrifuge 1, as described above, the temperature of the material to be processed M and the storage container 50 can be quickly lowered, and then the processing of the material to be processed M can be resumed by the step related to the second control step. The processing of the material to be processed M can be performed in a short time. Further, in the centrifuge 1, since the steps of the first control unit and the second control unit are automatically performed, higher convenience can be supplied to the user.

  In the centrifuge 1, an inflow / outflow portion 33 is provided in the rotation body main body 32 of the rotation body 30. Therefore, in the centrifuge 1, when the revolution body 20 rotates, the heat medium filling the partition body 80 flows into the hollow portion 31 of the rotating body main body 32 through the inflow / outflow portion 33 and exchanges heat with the storage container 50. After that, it is discharged to the outside of the rotating body main body 32 through the inflow / outflow portion 33 again. Thereby, in the centrifuge 1, the temperature of the to-be-processed material M and the storage container 50 can be reduced efficiently. This effect is exhibited even when the revolution body 20 and the rotation body 30 are rotated at a normal rotation speed or when the revolution body 20 and the rotation body 30 are rotated at a low rotation speed.

  Further, in the centrifuge 1, the storage container 50 is disposed apart from the bottom of the rotating body main body 32, so that the contact between the heat medium flowing into the hollow portion 31 and the storage container 50 is performed over a wide area. Furthermore, heat exchange between the heat medium and the storage container 50 can be performed more efficiently. Thereby, in the centrifuge 1, the temperature of the to-be-processed material M and the storage container 50 can be reduced more efficiently.

  In the centrifuge 1, the revolution body 20 and the rotation body 30 are always rotated during operation by the steps related to the first control unit. Therefore, even when the heat medium in the partition body 80 is below the freezing point by the temperature controller 90, the bearing 36, the bearing 69, and the like can be prevented from freezing, thereby preventing a failure caused thereby. be able to.

  Further, in the centrifuge 1, by providing the convex body 84, the temperature of the material to be processed M and the storage container 50 can be lowered efficiently. This is because the heat medium filling the partition 80 flows with the rotation of the revolution body 20 and collides with the convex body 84. The heat medium that has collided with the convex body 84 is prevented from moving in the rotation direction of the revolution body 20, and therefore moves along the convex body 84 toward the inside of the partition body 80 (revolution axis L <b> 1). Then, the heat medium that has moved to the vicinity of the revolution axis L <b> 1 starts flowing along with the rotation of the revolution body 20 and starts moving toward the outer periphery of the partition body 80. Further, in the vicinity of the outer periphery of the partition body 80, the pressure in the vicinity of the convex body 84 becomes low, so that the flow of the heat medium toward the convex body 84 is generated. When these phenomena occur continuously, convection of the heat medium in the partition 80 occurs. Thereby, in the centrifuge 1, after the temperature controller 90 cools the heat medium that fills the partition 80, the temperature of the material M to be processed and the storage container 50 can be more efficiently lowered by the heat medium. it can. This effect is exhibited even when the revolution body 20 is rotated at a normal rotation speed or when it is rotated at a low rotation speed.

(5) Modifications Note that the centrifuge 1 may be configured such that the rotation speed of the revolution body 20 and the rotation speed of the rotation body 30 can be controlled independently. For example, the centrifuge 1 is configured to include a motor (not shown) different from the motor 61 instead of the rotation force applying mechanism 65 of the drive unit 60, and by rotating the rotating body 30 using the motor (not shown), The rotation speed of the revolution body 20 and the rotation speed of the rotation body 30 can be controlled independently.

  In the above-described modification, the centrifuge 1 rotates the rotating body 30 at a low rotation speed while rotating the revolution body 20 at an arbitrary rotation speed, or rotates in the first control unit step. You may comprise so that rotation of the body 30 may be stopped. Also by configuring in this way, the force acting on the material to be processed M can be reduced and the heat generation can be reduced. In this case, the centrifuge 1 can rotate the revolution body 20 at the normal rotation speed or at a high rotation speed higher than the normal rotation speed. By increasing the heat medium flowing into the hollow portion 31 from the outflow portion 33, the temperature of the material M to be processed can be lowered more quickly.

  In addition, the centrifuge 1 does not need to be forcedly cooled by the temperature controller 90, and if the natural cooling is sufficient, the temperature controller 90 may not be provided. Even in this case, the centrifuge 1 can promote a decrease in the temperature of the material to be processed M and the storage container 50 by performing the steps related to the first control unit.

  In addition, the centrifuge 1 may be configured to detect temperature information of the storage container 50 (particularly, a portion in contact with the material to be processed M) by the detection unit 70. In this case, in the centrifuge 1, based on the temperature information of the storage container 50 detected by the detection unit 70, the CPU 102 determines whether or not the temperature of at least one of the material to be processed M and the storage container 50 is equal to or higher than the upper limit value. Judgment is made. Furthermore, the centrifuge 1 may be configured to detect temperature information of both the storage container 50 and the material to be processed M by the detection unit 70.

DESCRIPTION OF SYMBOLS 1 ... Centrifuge, 10 ... Rotating shaft, 20 ... Revolving body, 22 ... 1st arm, 24 ... 2nd arm, 30 ... Autorotation body, 31 ... Hollow part, 32 ... Autorotation body main body, 33 ... Inflow / outflow part, 34 DESCRIPTION OF SYMBOLS ... Spinning shaft, 36 ... Bearing, 40 ... Balance weight, 50 ... Storage container, 52 ... Main part, 53 ... Convex part, 54 ... Lid part, 55 ... Middle lid, 57 ... Outer cover, 60 ... Drive part, 61 ... Motor: 62 ... Pulley, 63 ... Pulley, 64 ... Belt, 65 ... Rotational force imparting mechanism, 66 ... Rotating gear, 67 ... Rotating force imparting gear, 68 ... Rotating power transmission gear, 69 ... Bearing, 70 ... Detector, 80 DESCRIPTION OF SYMBOLS ... Partition body, 81 ... Hollow part, 82 ... Cover part, 84 ... Convex-like body, 85 ... Bottom part, 86 ... Side surface part, 90 ... Temperature controller, 92 ... Heat exchange part, 100 ... Control mechanism, 102 ... CPU 104 Control unit 106 ... Temperature controller control unit 107 ... Operation unit 108 ... Rotation sensor 109 ... Display unit 110 ... Support substrate 120 ... Housing L1 ... Revolution axis L2 ... Rotation axis, M ... Process material

One embodiment of the present invention is:
A revolution body rotatable around the revolution axis,
A rotating body that is held by the revolution body and is rotatable about a rotation axis;
A storage container that rotates together with the rotating body and stores a material to be processed;
A drive unit for rotating the revolution body and the rotation body;
A detection unit for detecting temperature information;
When the temperature of at least one of the material to be processed and the storage container is determined to be equal to or higher than the upper limit based on the temperature information detected by the detection unit, the rotation of the rotating body in a state where the revolution body is rotated. A control mechanism that performs a first control for controlling the drive unit so that the rotation speed is a low rotation speed lower than the normal rotation speed, or the rotation of the rotating body is stopped;
A centrifuge is provided.

The centrifuge can promote a decrease in the temperature of the material to be processed and the storage member that stores the material to be processed by the first control performed by the control mechanism . Thereby, this centrifuge can prevent that the to-be-processed material and the storage container which stores the to-be-processed material receive a damage by the temperature rise based on the heat | fever generate | occur | produced by the process of to-be-processed material.

In this centrifuge,
When the control mechanism determines that the temperature of the material to be processed and the storage container is equal to or lower than a lower limit value based on the temperature information detected by the detection unit after the first control, You may perform 2nd control which controls the said drive part so that the rotational speed of a autorotation body may turn into a normal rotational speed.

In this centrifuge,
In the first control , when the temperature of at least one of the material to be processed and the storage container is determined to be an upper limit value or more based on the temperature information detected by the detection unit in the first control , The drive unit may be controlled so that the rotation speed is different from the normal rotation speed.

In this centrifuge,
The rotating body has a rotating body main body provided with an inflow / outflow portion for allowing the heat medium to flow into the hollow portion by rotating the revolution body , and for flowing out,
The storage container is disposed in a hollow portion of the rotating body,
The inflow / outflow portion may be provided on a wall surface of the rotation body main body that can face upstream or downstream in the rotation direction of the revolution body.

In this centrifuge,
Furthermore, from a wall surface of said partition body may comprise a convex body which projects toward the partition body.

Another embodiment of the present invention is:
A control mechanism used in a centrifuge that includes a drive unit that rotates around a rotation axis while rotating a storage container that stores a material to be processed around a rotation axis, and a detection unit that detects temperature information. ,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A control mechanism for performing one control is provided.

This control mechanism can promote a decrease in the temperature of the material to be processed and the storage member that stores the material to be processed by the first control. Thereby, this control mechanism can prevent that the to-be-processed material and the storage container which stores a to-be-processed material are damaged by the temperature rise based on the heat which generate | occur | produces by the process of a to-be-processed material in a centrifuge .

Another embodiment of the present invention is:
The container accommodating the material to be treated, while rotating about the revolving axis, with a drive part which rotates around the rotation axis, and a detection unit for detecting the temperature information, processing the material to be treated processed A method,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A processing method for performing one control is provided.

  Here, in the centrifuge 1, the revolving body 20 and the rotating body 30 are rotated at a rotational speed lower than the normal rotational speed (hereinafter referred to as “low rotational speed”), whereby the material to be processed M and the storage container are rotated. A decrease in temperature of 50 can be promoted. This is because when the revolution body 20 and the rotation body 30 are rotated at a low rotation speed, compared to the case where the revolution body 20 and the rotation body 30 are rotated at a normal rotation speed, the processed material M Since the working force is reduced, the heat generation is also reduced (at this time, the processing of the material M to be processed is stopped or slowed down). Further, when the revolution body 20 rotates at a low rotation speed, the heat medium whose temperature is adjusted by the temperature controller 90 flows into the hollow portion 31 from the inflow / outflow portion 33 of the rotation body main body 32 of the rotation body 30 and is stored therein. After exchanging heat with the container 50, it flows out of the main body 32. Thereby, in the centrifuge 1, the fall of the temperature of the to-be-processed material M and the storage container 50 can be promoted compared with the case where the rotation of the revolution body 20 and the autorotation body 30 is simply stopped. The steps S3 and S4 are collectively referred to as first control.

  In S6, the centrifuge 1 resumes the processing of the material M to be processed. That is, the CPU 102 issues an instruction to the drive control unit 104 so that the revolution body 20 rotates at the normal rotation speed. Thereby, the drive control unit 104 controls the motor 61 of the drive unit 60 in order to realize the rotation speed of the revolution body 20 instructed by the CPU 102. By this control, the revolution body 20 and the rotation body 30 rotate at the normal rotation speed. The steps S5 and S6 are collectively referred to as second control.

  In the centrifuge 1, the temperature reduction of the material to be processed M and the storage container 50 can be promoted by performing the steps related to the first control. Table 1 shows the results of experiments conducted to confirm this effect. That is, the table shows that after the revolution body 20 and the rotation body 30 are rotated at the normal rotation speed in the centrifuge 1, the temperature of the material M to be processed and the storage container 50 reaches the upper limit value. The measurement result of the to-be-processed material M at the time of performing the step which concerns on 1 control, and the storage container 50 is shown, and it shows how much temperature fell with time progress with respect to the upper limit. Moreover, in the same table, as a comparative example, after the temperature of the material to be processed M and the storage container 50 reaches the upper limit value, the same measurement is performed when the rotation of the revolution body 20 and the rotation body 30 is simply stopped. The results are also shown.

  As is clear from Table 1, in the centrifuge 1, it is possible to promote a decrease in the temperature of the material to be processed M and the storage container 50 by the steps related to the first control. Therefore, the centrifuge 1 can prevent the material to be processed M and the storage container 50 from being damaged by the temperature rise based on the heat generated by the processing of the material to be processed M.

  Further, in the centrifuge 1, as described above, the temperature of the material to be processed M and the storage container 50 can be quickly reduced, and then the processing of the material to be processed M can be resumed by the step related to the second control. The material M can be processed in a short time. Furthermore, since the first control and the second control steps are automatically performed in the centrifuge 1, higher convenience can be supplied to the user.

  In the centrifuge 1, the revolution body 20 and the rotation body 30 are always rotated during operation by the steps related to the first control. Therefore, even when the heat medium in the partition body 80 is below the freezing point by the temperature controller 90, the bearing 36, the bearing 69, and the like can be prevented from freezing, thereby preventing a failure caused thereby. be able to.

  In the above modification, the centrifuge 1 rotates the rotating body 30 at a low rotation speed while rotating the revolution body 20 at an arbitrary rotation speed in the first control step, or the rotation body. You may comprise so that rotation of 30 may be stopped. Also by configuring in this way, the force acting on the material to be processed M can be reduced and the heat generation can be reduced. In this case, the centrifuge 1 can rotate the revolution body 20 at the normal rotation speed or at a high rotation speed higher than the normal rotation speed. By increasing the heat medium flowing into the hollow portion 31 from the outflow portion 33, the temperature of the material M to be processed can be lowered more quickly.

  In addition, the centrifuge 1 does not need to be forcedly cooled by the temperature controller 90, and if the natural cooling is sufficient, the temperature controller 90 may not be provided. Even in this case, the centrifuge 1 can promote the decrease in the temperatures of the material M to be processed and the storage container 50 by performing the steps related to the first control.

Claims (8)

A revolution body rotatable around the revolution axis,
A rotating body that is held by the revolution body and is rotatable about a rotation axis;
A storage container that rotates together with the rotating body and stores a material to be processed;
A drive unit for rotating the revolution body and the rotation body;
A detection unit for detecting temperature information;
When the temperature of at least one of the material to be processed and the storage container is determined to be equal to or higher than the upper limit based on the temperature information detected by the detection unit, the rotation of the rotating body in a state where the revolution body is rotated. A first control unit that controls the drive unit so that the speed becomes a low rotation speed lower than the normal rotation speed, or the rotation of the rotating body stops.
Centrifuge with. Further, when the temperature of the material to be processed and the storage container is determined to be lower than the lower limit based on the temperature information detected by the detection unit by the control by the first control unit, the revolution body and the rotation A second control unit for controlling the drive unit so that the rotation speed of the body becomes a normal rotation speed;
The centrifuge of claim 1 comprising:   When the first control unit determines that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value based on the temperature information detected by the detection unit, the rotation speed of the revolution body is normally The centrifuge according to claim 1 or 2, wherein the drive unit is controlled to have a rotational speed different from the rotational speed. The rotating body has a rotating body body provided with an inflow / outflow portion for allowing the heat medium to flow into and out of the hollow portion by rotating the revolving body about the revolving axis.
The storage container is disposed in a hollow portion of the rotating body,
The centrifuge according to any one of claims 1 to 3, wherein the inflow / outflow portion is provided on a wall surface of the main body of the rotating body capable of facing upstream or downstream in a rotation direction of the revolution body. Furthermore, a partition body that partitions a space including a region where the revolution body rotates,
A temperature controller capable of setting the temperature of the heat medium filling the compartment to below freezing point;
A centrifuge according to claim 4.   Furthermore, the centrifuge of Claim 5 provided with the convex-shaped body which protrudes toward the hollow part of the said division body from the wall surface of the said division body. A control mechanism used in a centrifuge that includes a drive unit that rotates around a rotation axis while rotating a storage container that stores a material to be processed around a rotation axis, and a detection unit that detects temperature information. ,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A control mechanism comprising one control unit. A process for processing the material to be processed, comprising: a drive unit for rotating the storage container storing the material to be processed around the revolution axis while rotating the container about the rotation axis; and a detection unit for detecting temperature information. A method,
On the basis of the temperature information detected by the detection unit, when it is determined that the temperature of at least one of the material to be processed and the storage container is equal to or higher than the upper limit value, the rotation about the revolution axis is performed. The drive unit is controlled so that the rotation speed about the rotation axis is a low rotation speed lower than the normal rotation speed, or the rotation about the rotation axis is stopped. A processing method for performing one control.

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