JP2016098093A - Flow dividing device, control method, flow dividing method and program, and flow rate characteristic measuring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more surely divide a flow of powders and to convey the powders of the desired flow rate while reducing clogging more.SOLUTION: In the branch block 51, a conveyance path 71 and a conveyance path 72 with hollow cylindrical shapes for conveying conveyance air Aand powders, are formed. The conveyance path 72 branches from the conveyance path 71 at any angle between 15 degrees and 165 degrees. An ejector 52 is provided at the inlet of the conveyance path 71, and an ejector 53 is provided at the outlet of the conveyance path 72. A control device causes the ejector 52 and the ejector 53 to convey the conveyance air Atemporally exclusively, and when causing the ejector 52 to convey the powders, the control device changes a pressure of the conveyance air Aejected from the air ejection nozzle 84 of the ejector 52 so that a pressure measured by a pressure sensor 54 becomes a desired target value.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a flow dividing device, a control method, a flow dividing method and a program, and a flow rate characteristic measuring method, and more particularly to a flow dividing device, a control method, a flow dividing method and a program, and a flow rate characteristic measuring method suitable for diverting powder.

  Powders are used in a wide range of fields such as medicines such as swallows, foods such as wheat flour and buckwheat, painting, metal sintering, battery manufacturing, and printing.

  Conventionally, in the air current conveyance method of a granular material in which the granular material is distributed and conveyed to a plurality of conveyance paths by a distributor provided in the middle of the conveyance path, resistance to the flow in the conveyance path downstream of the distributor. In some cases, the gas is blown so that the flow rate balance of the granular material flowing in each conveyance path is adjusted (see, for example, Patent Document 1).

JP 2001-19161 A

  However, in the distributor described in Patent Document 1, although the flow rate balance can be adjusted, the flow cannot be divided to such an extent that the flow is switched. In addition, it is conceivable that a valve of a type that mechanically opens and closes a conveying path through which powder is conveyed is provided in the conveying path. However, the valve is clogged with powder and cannot be conveyed. In addition, it is difficult to stably convey a powder having a desired flow rate.

  The present invention has been made in view of such a situation, and more easily, while reducing clogging, more reliably diverts powder and enables conveyance of powder at a desired flow rate. It is. Further, it is possible to acquire conditions for conveying powder having a desired flow rate. Furthermore, the powder can be more reliably diverted more easily while reducing clogging.

  The shunt device according to the first aspect of the present invention includes a hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical first transport path through which the transport medium and the powder are transported. Forming a second transport path that is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. And a hollow through which the transported medium and powder are transported when the transport medium and powder are unloaded from the outlet of the first transport path and from the outlet of the first transport path. From the hole or slit provided in the cylindrical wall surface, the carrier medium is ejected at a right angle or an acute angle with respect to the axis of the carrier medium and the powder in the conveyance direction, and is coaxial with the axis of the first conveyance path in the conveyance direction. A first transport means for transporting the transport medium and powder to the When the carrier medium and powder are carried out from the outlet of the second conveyance path, the holes or slits provided in the hollow cylindrical wall surface through which the carrier medium and powder to be conveyed pass are provided. The second conveying medium and the powder are ejected at a right angle or an acute angle with respect to the conveying medium axis of the conveying medium and the powder, and the conveying medium and the powder are conveyed coaxially with the conveying direction axis of the second conveying path. A transport unit, a pressure measuring unit for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch between the first transport path and the second transport path, and the first transport exclusively in time. When the powder is conveyed to either the first conveying means or the second conveying means and the first conveying means is conveyed, the first measurement is performed so that the pressure measured by the pressure measuring means becomes a predetermined target value. Transport medium ejected from holes or slits in transport means And a control means for changing the pressure.

  The second conveyance path formed in the conveyance path forming unit can be branched from the first conveyance path at any angle of 90 degrees to 150 degrees with respect to the first conveyance path.

  The cross-sectional shape of the second transport path can be the same as the cross-sectional shape of the first transport path.

  The control method according to the first aspect of the present invention includes a hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical first transport path through which the transport medium and the powder are transported. Forming a second transport path that is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. And a hollow cylindrical wall surface that is provided at either the inlet or the outlet of the first conveyance path and through which the conveyance medium and the powder to be conveyed pass, with respect to an axis in the conveyance direction of the conveyance medium and the powder A first conveying means in which a hole or a slit for ejecting a conveying medium in a direction forming a right angle or an acute angle is formed, and a hollow cylinder provided at the outlet of the second conveying path through which the conveyed conveying medium and powder are passed. To the axis of the conveyance medium and powder in the conveyance direction Second transport means in which a hole or slit for ejecting a transport medium in a direction forming a right angle or an acute angle is formed, and a first transport path on the upstream side of the branch between the first transport path and the second transport path And a pressure measuring means for measuring the pressure of the transport medium, and when the powder is transported from the outlet of the first transport path, the transport medium from the hole or slit of the first transport means And the pressure of the conveying medium ejected from the hole or slit of the first conveying means is changed so that the pressure measured by the pressure measuring means becomes a predetermined target value. When carrying out powder from an exit, the step which ejects a conveyance medium from the hole or slit of a 2nd conveyance means is included.

  The program according to the first aspect of the present invention includes a hollow cylindrical first conveyance path through which powder is conveyed together with a gaseous conveyance medium, and a hollow cylindrical second through which the conveyance medium and powder are conveyed. A transport path forming unit in which a second transport path branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path is formed And a hollow cylindrical wall surface that is provided at either the inlet or the outlet of the first transport path and through which the transport medium and powder to be transported pass, is perpendicular to the transport medium and powder transport axis. Alternatively, a hollow cylindrical shape is provided at the outlet of the second transport path through which the first transport means in which holes or slits for ejecting the transport medium in an acute angle direction are formed, and through which the transported medium and powder are transported. Against the axis of the conveying medium and powder conveying direction. The first transport on the upstream side of the branch between the first transport path and the second transport path, the second transport means formed with holes or slits for ejecting the transport medium in a direction that forms a right angle or an acute angle. When the powder is carried out from the outlet of the first conveying path to a computer that controls a flow dividing device including a pressure measuring unit that measures the pressure of the conveying medium on the path, the conveying medium is formed from the hole or slit of the first conveying means. And the pressure of the conveying medium ejected from the hole or slit of the first conveying means is changed so that the pressure measured by the pressure measuring means becomes a predetermined target value. When carrying out powder from an exit, the process including the step which ejects a conveyance medium from the hole or slit of a 2nd conveyance means is performed.

  In the flow dividing device, the control method, or the program according to the first aspect of the present invention, a hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a transport medium A hollow cylindrical second transport path through which the powder is transported, and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. The first transport means is provided at either the inlet or the outlet of the first transport path when the transport medium and the powder are transported from the outlet of the first transport path. From the hole or slit provided in the hollow cylindrical wall surface through which the transport medium and the powder to be transported pass, the transport medium is ejected at a right angle or an acute angle with respect to the axis in the transport direction of the transport medium and the powder, Coaxial with the conveyance direction axis of the first conveyance path When the conveyance medium and the powder are conveyed in the direction, and the conveyance medium and the powder are carried out from the outlet of the second conveyance path, the second conveyance means provided at the outlet of the second conveyance path, From the hole or slit provided in the hollow cylindrical wall surface through which the conveyance medium and powder to be conveyed pass, the conveyance medium is ejected at a right angle or an acute angle with respect to the axis in the conveyance direction of the conveyance medium and powder. The transport medium and the powder are transported in a direction coaxial with the transport direction axis of the transport path, and the first transport path on the upstream side of the branch between the first transport path and the second transport path is measured by the pressure measuring means. When the pressure of the transport medium is measured and transported to either the first transport means or the second transport means exclusively in terms of time, and the powder is transported to the first transport means, pressure measurement is performed. The pressure measured by the means will be the predetermined target value The pressure of the conveying medium ejected from the hole or slit in the first transport device is changed.

  The flow characteristic measurement method according to one aspect of the present invention includes a hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical first transport path through which the transport medium and the powder are transported. Forming a second transport path that is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. And a hollow cylindrical wall surface that is provided at either the inlet or the outlet of the first conveyance path and through which the conveyance medium and the powder to be conveyed pass, with respect to an axis in the conveyance direction of the conveyance medium and the powder A first conveying means in which a hole or a slit for ejecting a conveying medium in a direction forming a right angle or an acute angle is formed, and a hollow cylinder provided at the outlet of the second conveying path through which the conveyed conveying medium and powder are passed. On the axis of the conveying medium and powder conveying direction A second conveying means formed with a hole or a slit for ejecting the conveying medium in a direction that forms a right angle or an acute angle, and a first upstream of the branch between the first conveying path and the second conveying path. A flow rate characteristic measuring method for a flow dividing device comprising a pressure measuring means for measuring the pressure of a transport medium in a transport path, wherein the pressure of the transport medium ejected from the hole or slit of the second transport means is kept constant. The pressure of the transport medium ejected from the hole or slit of the first transport means is changed, and the transport medium is ejected from the outlet of the first transport path at each of the pressures of the transport medium ejected from the hole or slit of the first transport means. The first and second transport paths are measured by the pressure measuring means at each of the pressures of the transport medium measured from the holes or slits of the first transport means. The pressure of the transport medium in the first transport path on the upstream side of the first branch is measured, and the first transport path and the second transport powder when the powder having a desired flow rate is transported from the outlet of the first transport path. Identifying the pressure of the transport medium on the first transport path upstream of the branch with the transport path and the pressure of the transport medium ejected from the hole or slit of the first transport means.

  In the flow characteristic measurement method according to one aspect of the present invention, the transport medium ejected from the hole or slit of the first transport means while the pressure of the transport medium ejected from the hole or slit of the second transport means is constant. And the flow rate of the powder discharged from the outlet of the first transfer path at each of the pressures of the transfer medium ejected from the holes or slits of the first transfer means is measured, At each of the pressures of the transport medium ejected from the holes or slits of the transport means, the pressure measurement means causes the transport medium of the first transport path upstream of the branch between the first transport path and the second transport path. When the pressure is measured and the powder at a desired flow rate is unloaded from the outlet of the first transfer path, the first transfer path upstream of the branch between the first transfer path and the second transfer path Carrier medium The pressure in the pressure and the first conveying means of holes or conveying medium ejected from the slit of is identified.

  The shunting device according to the second aspect of the present invention includes a hollow cylindrical first conveying path through which powder is conveyed together with a gaseous conveying medium, and a hollow cylindrical first conveying path through which the conveying medium and the powder are conveyed. Forming a second transport path that is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. And when the carrier medium and the powder are carried out from the outlet of the first conveyance path, pressure is generated on the conveyance medium on the inlet side of the first conveyance path. A first transport means for transporting the transport medium and the powder in the same direction as the transport direction axis of the first transport path, and an outlet of the second transport path. When carrying out the carrying medium and the powder, a pressure is generated in the carrying medium on the exit side of the second carrying path, Second conveying means for conveying the conveying medium and the powder in a direction coaxial with the conveying direction axis of the two conveying paths, and the first conveying means and the second conveying means are exclusively in time. Transport the transport medium and powder.

  The shunting method according to the second aspect of the present invention includes a hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical first transport path through which the transport medium and the powder are transported. Forming a second transport path that is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. A first conveying means that is provided at an inlet of the first conveying path, and that conveys the conveying medium and the powder in the same direction as the axis of the conveying direction of the first conveying path, and the second conveying path A shunting method for a shunting device comprising a second transporting means provided at an outlet and transporting a transporting medium and powder in a direction coaxial with a transporting direction axis of a second transporting path, wherein the first transporting path When carrying out the carrying medium and the powder from the outlet of the first carrying means, the first carrying means is arranged on the inlet side of the first carrying path. When the pressure is generated in the feeding medium, the generation of the pressure on the conveying medium by the second conveying means is suppressed, and the conveying medium and the powder are carried out from the outlet of the second conveying path, the second conveying means And a step of generating pressure on the transport medium on the exit side of the second transport path and suppressing generation of pressure on the transport medium by the first transport means.

  The program according to the second aspect of the present invention includes a hollow cylindrical first conveyance path through which powder is conveyed together with a gaseous conveyance medium, and a hollow cylindrical second through which the conveyance medium and powder are conveyed. A transport path forming unit in which a second transport path branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path is formed A first conveying means that is provided at an inlet of the first conveying path, and that conveys the conveying medium and the powder in a direction coaxial with an axis in the conveying direction of the first conveying path, and an outlet of the second conveying path And a computer for controlling a flow dividing device provided with a second transport means for transporting the transport medium and the powder in a direction coaxial with the transport direction axis of the second transport path. When carrying out the carrying medium and powder from the first carrying means, the first carrying means is connected to the first carrying path. When the pressure is generated in the transport medium on the mouth side, the generation of the pressure on the transport medium by the second transport unit is suppressed, and the transport medium and the powder are unloaded from the outlet of the second transport path, the second The transporting unit causes the transporting medium to generate pressure on the exit side of the second transporting path, and performs processing including a step of suppressing generation of pressure on the transporting medium by the first transporting unit.

  In the flow dividing device, the flow dividing method, or the program according to the second aspect of the present invention, a hollow cylindrical first conveying path through which powder is conveyed together with a gaseous conveying medium to the conveying path forming unit, and a conveying medium A hollow cylindrical second transport path through which the powder is transported, and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. And a first conveying means for conveying the conveying medium and the powder in the same direction as the axis of the conveying direction of the first conveying path is provided at the entrance of the first conveying path, 2nd conveyance means which conveys a conveyance medium and powder in the direction of the same axis as the axis of the conveyance direction of 2 conveyance paths is provided in the exit of the 2nd conveyance path, and is conveyed from the exit of the 1st conveyance path. And the powder are transported by the first transport means on the inlet side of the first transport path While generating pressure on the body, generation of pressure on the transport medium by the second transport means is suppressed, and when the transport medium and powder are unloaded from the outlet of the second transport path, the second transport means In addition, pressure is generated in the transport medium on the exit side of the second transport path, and generation of pressure on the transport medium by the first transport unit is suppressed.

  As described above, according to the present invention, the powder can be divided.

  Further, according to the first aspect of the present invention, it is possible to more easily divert powder and more reliably convey powder at a desired flow rate while reducing clogging more easily. In addition, according to the flow rate characteristic measuring method of one aspect of the present invention, conditions for conveying powder having a desired flow rate can be acquired. According to the second aspect of the present invention, the powder can be more reliably diverted more easily and with less clogging.

1 is a block diagram showing the overall configuration of a processing system 1. FIG. 2 is a diagram showing an outline of the configuration of a flow dividing device 13. FIG. FIG. 3 is a view showing a cross section of the flow dividing device 13. 3 is a block diagram illustrating a configuration of a control device 14. FIG. 6 is a timing chart showing changes in pressure of working air A _d1 and working air A _d2 . It is a flowchart explaining a fixed supply setting procedure. It is a flowchart explaining a fixed supply setting procedure. It is a flowchart explaining the process of control of supply.

  Embodiments of the present invention will be described below. Correspondences between the configuration requirements of the present invention and the embodiments described in the detailed description of the present invention are exemplified as follows. This description is to confirm that the embodiments supporting the present invention are described in the detailed description of the invention. Accordingly, although there are embodiments that are described in the detailed description of the invention but are not described here as embodiments corresponding to the constituent elements of the present invention, It does not mean that the embodiment does not correspond to the configuration requirements. Conversely, even if an embodiment is described here as corresponding to a configuration requirement, that means that the embodiment does not correspond to a configuration requirement other than the configuration requirement. It's not something to do.

  The shunting device according to the first aspect of the present invention firstly includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) through which powder is transported together with a transport medium that is a gas, and transport. A hollow cylindrical second conveyance path through which the medium and the powder are conveyed, branched from the first conveyance path at an angle of 15 degrees to 165 degrees with respect to the first conveyance path. The transport path forming unit (for example, the branch block 51 in FIG. 2) in which the second transport path (for example, the transport path 72 in FIG. 3) is formed, and either the entrance or the exit of the first transport path When the carrier medium and the powder are carried out from the outlet of the first conveyance path, holes (for example, in FIG. 3) provided in the hollow cylindrical wall surface through which the carrier medium and the powder to be conveyed pass. From the air outlet 84) or the slit, the axis in the conveying direction of the conveying medium and powder First conveying means (for example, the ejector 52 in FIG. 2) that ejects the conveying medium at a right angle or an acute angle and conveys the conveying medium and the powder in the same direction as the axis of the conveying direction of the first conveying path. Provided at the exit of the second transport path, and when the transport medium and powder are unloaded from the exit of the second transport path, provided on the hollow cylindrical wall surface through which the transport medium and powder to be transported pass. The transport medium is ejected from a hole (for example, the air ejection port 94 in FIG. 3) or the slit at a right angle or an acute angle with respect to the transport medium and powder transport direction axis, and the transport direction axis of the second transport path The first conveying unit (for example, the ejector 53 in FIG. 2) that conveys the conveying medium and the powder in the coaxial direction, and the first upstream of the branch between the first conveying path and the second conveying path. Pressure measuring means that measures the pressure of the transport medium in the transport path (for example, 2) and the pressure sensor 54) and the first conveying means or the second conveying means exclusively in terms of time, and when the powder is conveyed to the first conveying means, the pressure Control means (for example, the control device 14 in FIG. 1) for changing the pressure of the transport medium ejected from the hole or slit of the first transport means so that the pressure measured by the measurement means becomes a predetermined target value; Is provided.

  The control method according to the first aspect of the present invention includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) in which powder is transported together with a transport medium that is a gas, and a transport medium and powder. Is a hollow cylindrical second transport path that is transported and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. A transport path forming unit (for example, the branch block 51 in FIG. 2) in which a transport path (for example, the transport path 72 in FIG. 3) is formed, and one of the entrance and the exit of the first transport path; A hole (for example, the air shown in FIG. 3) is ejected to a hollow cylindrical wall surface through which the transport medium and powder to be transported pass in a direction perpendicular to or perpendicular to the transport medium and powder transport direction. The first conveying means in which the spout 84) or slit is formed For example, the ejector 52) in FIG. 2 and an exit of the second transport path are provided on a hollow cylindrical wall surface through which the transport medium and powder to be transported pass with respect to an axis in the transport direction of the transport medium and powder. A second conveying means (for example, the ejector 53 in FIG. 2) in which a hole (for example, the air ejection port 94 in FIG. 3) or a slit for ejecting the conveying medium in a direction that forms a right angle or an acute angle is formed, and the first Control method of the flow dividing device comprising pressure measuring means (for example, pressure sensor 54 in FIG. 2) for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch between the transport path and the second transport path And when carrying out powder from the exit of the 1st conveyance path, while conveying a conveyance medium from a hole or a slit of the 1st conveyance means, the pressure measured by a pressure measurement means is a predetermined target value. So that the first carrying When the pressure of the transport medium ejected from the hole or slit of the means is changed (for example, the procedure of step S60 in FIG. 8) and the powder is transported from the outlet of the second transport path, the hole of the second transport means Alternatively, a step of ejecting the conveyance medium from the slit (for example, the procedure of step S62 in FIG. 8) is included.

  The program according to the first aspect of the present invention includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) through which powder is transported together with a transport medium that is a gas, and a transport medium and powder. Is a hollow cylindrical second conveyance path that is conveyed, and is branched from the first conveyance path at an angle of 15 degrees to 165 degrees with respect to the first conveyance path A transport path forming unit (for example, the branch block 51 in FIG. 2) in which a path (for example, the transport path 72 in FIG. 3) is formed, and the transport path is provided at either the entrance or the exit of the first transport path. A hole (for example, an air jet shown in FIG. 3) is formed on a hollow cylindrical wall surface through which the transport medium and the powder to be transported are ejected in a direction perpendicular to or perpendicular to an axis in the transport direction of the transport medium and the powder. Outlet 84) or first conveying hand in which a slit is formed (For example, the ejector 52 in FIG. 2) and a hollow cylindrical wall surface that is provided at the outlet of the second conveyance path and through which the conveyance medium and the powder to be conveyed pass, and an axis in the conveyance direction of the conveyance medium and the powder A second conveying means (for example, the ejector 53 in FIG. 2) in which a hole (for example, the air ejection port 94 in FIG. 3) or a slit for ejecting the conveying medium in a direction perpendicular to or at an acute angle with respect to the first medium is formed; Controls a flow dividing device comprising pressure measuring means (for example, pressure sensor 54 in FIG. 2) for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch between the first transport path and the second transport path. When carrying out the powder from the outlet of the first transport path to the computer, the transport medium is ejected from the hole or slit of the first transport means, and the pressure measured by the pressure measuring means is a predetermined target value. So that When the pressure of the transport medium ejected from the hole or slit of the first transport means is changed (for example, the procedure of step S60 in FIG. 8), and the powder is transported from the outlet of the second transport path, the second transport A process including a step of ejecting the conveyance medium from the hole or slit of the means (for example, the procedure of step S62 in FIG. 8) is performed.

  The flow characteristic measurement method according to one aspect of the present invention includes a hollow cylindrical first conveyance path (for example, conveyance path 71 in FIG. 3) in which powder is conveyed together with a gaseous conveyance medium, and the conveyance medium and powder. Is a hollow cylindrical second transport path that is transported and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. A transport path forming unit (for example, the branch block 51 in FIG. 2) in which a transport path (for example, the transport path 72 in FIG. 3) is formed, and one of the entrance and the exit of the first transport path; A hole (for example, the air shown in FIG. 3) is ejected to a hollow cylindrical wall surface through which the transport medium and powder to be transported pass in a direction perpendicular to or perpendicular to the transport medium and powder transport direction. The first conveyance in which the spout 84) or slit is formed An axis in the conveyance direction of the conveyance medium and the powder is provided on a stage (for example, the ejector 52 in FIG. 2) and a hollow cylindrical wall surface through which the conveyance medium and the powder to be conveyed pass through. A second conveying means (for example, the ejector 53 in FIG. 2) in which a hole (for example, the air ejection port 94 in FIG. 3) or a slit for ejecting the conveying medium in a direction perpendicular to or perpendicular to the angle is formed; Of a flow dividing device including pressure measuring means (for example, the pressure sensor 54 in FIG. 2) for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch between the first transport path and the second transport path. A flow rate characteristic measuring method, wherein the pressure of the transport medium ejected from the hole or slit of the first transport means is changed while the pressure of the transport medium ejected from the hole or slit of the first transport means is changed. (For example, FIG. In step S11, the flow rate of the powder discharged from the outlet of the first transfer path at each pressure of the transfer medium ejected from the hole or slit of the first transfer means is measured (for example, FIG. 6). In step S12), in each of the pressures of the transport medium ejected from the holes or slits of the first transport means, upstream of the branch between the first transport path and the second transport path by the pressure measuring means The pressure of the transport medium in the first transport path is measured (for example, the procedure of step S13 in FIG. 6), and the first flow rate when the powder having a desired flow rate is unloaded from the outlet of the first transport path. Specify the pressure of the transport medium in the first transport path and the pressure of the transport medium ejected from the hole or slit of the first transport means on the upstream side of the branch between the transport path and the second transport path (for example, Step S14 in FIG. 6) step.

  The flow dividing device according to the second aspect of the present invention includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) through which powder is transported together with a transport medium that is a gas, and a transport medium and powder. Is a hollow cylindrical second transport path that is transported and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. A conveyance path forming unit (for example, the branch block 51 in FIG. 2) in which a conveyance path (for example, the conveyance path 72 in FIG. 3) is formed, and an entrance of the first conveyance path, When the conveyance medium and the powder are carried out from the outlet, pressure is generated in the conveyance medium on the inlet side of the first conveyance path, and the conveyance medium and the powder are coaxial with the axis in the conveyance direction of the first conveyance path. A first transport means (for example, the ejector 52 in FIG. 2) and a second transport path When the conveyance medium and the powder are carried out from the outlet of the second conveyance path provided at the outlet, pressure is generated in the conveyance medium on the outlet side of the second conveyance path, and the conveyance direction of the second conveyance path Second conveying means (for example, the ejector 53 in FIG. 2) that conveys the conveying medium and the powder in a direction coaxial with the axis of the first conveying means, and the first conveying means and the second conveying means are temporally exclusive. The conveying medium and the powder are conveyed.

  The shunting method according to the second aspect of the present invention includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) through which powder is transported together with a transport medium that is a gas, and a transport medium and powder. Is a hollow cylindrical second transport path that is transported and is branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to the first transport path. A conveyance path forming unit (for example, the branch block 51 in FIG. 2) in which a conveyance path (for example, the conveyance path 72 in FIG. 3) is formed, and an entrance of the first conveyance path, A first conveying means (for example, the ejector 52 in FIG. 2) that conveys the conveying medium and the powder in the same direction as the axis of the conveying direction, and an outlet of the second conveying path, Second conveying means for conveying the conveying medium and the powder in the same direction as the axis of the conveying direction (for example, 2 is a flow dividing method of a flow dividing device, and when the conveyance medium and the powder are carried out from the outlet of the first conveyance path, the first conveyance means has an inlet of the first conveyance path. The pressure is generated in the transport medium on the side, and the generation of pressure on the transport medium by the second transport means is suppressed (for example, the procedure of step S59 and step S60 in FIG. 8), from the exit of the second transport path. When unloading the transport medium and the powder, the second transport means generates pressure on the transport medium on the exit side of the second transport path, and the first transport means generates pressure on the transport medium. It includes the step of suppressing (for example, the procedure of step S61 and step S62 in FIG. 8).

  The program according to the second aspect of the present invention includes a hollow cylindrical first transport path (for example, transport path 71 in FIG. 3) in which powder is transported together with a transport medium that is a gas, and a transport medium and powder. Is a hollow cylindrical second conveyance path that is conveyed, and is branched from the first conveyance path at an angle of 15 degrees to 165 degrees with respect to the first conveyance path A conveyance path forming unit (for example, the branch block 51 in FIG. 2) in which a path (for example, the conveyance path 72 in FIG. 3) is formed, and the conveyance of the first conveyance path are provided at the entrance of the first conveyance path. The first conveying means (for example, the ejector 52 in FIG. 2) that conveys the conveying medium and the powder in the direction coaxial with the direction axis, and the second conveying path are provided at the outlet of the second conveying path. Second conveying means for conveying the conveying medium and the powder in the same direction as the direction axis (for example, When the conveying medium and the powder are carried out from the outlet of the first conveying path to a computer that controls the flow diverter provided with the ejector 53) of FIG. 2, the inlet of the first conveying path is taken into the first conveying means. The pressure is generated in the transport medium on the side, and the generation of pressure on the transport medium by the second transport means is suppressed (for example, the procedure of step S59 and step S60 in FIG. 8), from the exit of the second transport path. When unloading the transport medium and the powder, the second transport means generates pressure on the transport medium on the exit side of the second transport path, and the first transport means generates pressure on the transport medium. The process including the step of suppressing (for example, the procedure of step S61 and step S62 in FIG. 8) is performed.

  Hereinafter, with reference to FIG. 1 thru | or FIG. 8, the processing system 1 of one embodiment of this invention is demonstrated.

FIG. 1 is a block diagram showing the overall configuration of the processing system 1. The processing system 1 splits and processes a powdery solid, that is, a powder that is an aggregate of powder or particles (particles). For example, powders include medicines such as drinks, foods such as wheat flour and buckwheat, powder coatings used for painting, metal powders such as tungsten used for sintering, powders used in the manufacture of battery negative electrodes, and printing Pigments used in the production of inks, toners used in copying machines, cement, carbon powder, magnetic fluid, magnetic powder, and the like. The particle size (particle size) of the particles forming the powder that is shunted by the processing system 1 is 10 ⁻² m to 10 ⁻⁹ m.

  The processing system 1 conveys and processes a desired amount (for example, mass or volume) of powder per unit time. In other words, the processing system 1 supplies a fixed amount of powder and processes the supplied powder. Further, the processing system 1 can switch between processing and stopping of the powder at a desired timing. When the processing system 1 switches between processing and stopping the powder at a desired timing to process the powder, a desired amount of powder is conveyed per unit time, so that the processing system 1 is more uniform with higher processing efficiency. Therefore, it can be processed with better quality with fewer defects.

  The processing system 1 includes a supply tank 11, a supply device 12, a flow dividing device 13, a control device 14, a processing device 15, and a recovery tank 16. The supply tank 11 stores powder for processing in the processing device 15. When the flowing air is supplied, the powder stored in the supply tank 11 is agitated, and the powder is supplied from the supply tank 11 to the supply device 12 through a pipe.

Feeder 12 includes, for example, a feeder and ejector screw, together with the conveying air A _C supplied from the control unit 14, the amount of the powder in accordance with the supply amount indicating signal supplied from the control unit 14, It supplies to the diversion apparatus 13 through piping.

Or diverter 13, depending on the operating air A _d1 and operating air A _d2 supplied from the control unit 14, the powder supplied together with the conveying air A _C from feeder 12 to flow to the processing unit 15 through the pipe, Or it flows into the collection tank 16 through piping. Additionally, diverter 13, to the control unit 14 of the pressure measurement signal indicating the value of the pressure of the transport air A _C of a predetermined position in the path to which the particles are conveyed. The processing device 15 processes the powder supplied from the flow dividing device 13. For example, the processing device 15 fills a capsule made of a cylindrical gelatin body and a cap with powder, which is a medicine such as a drug, and closes the capsule. For example, the processing apparatus 15 kneads the powder which is wheat flour with water, and manufactures bread dough. Moreover, the processing apparatus 15 stores the powder which is carbon powder in the case of a rechargeable battery.

Further, when the flow dividing device 13 supplies the powder supplied from the supply device 12 to the processing device 15, the control device 14 controls the quantitative supply, and the pressure indicated by the pressure measurement signal becomes the powder flow rate. The pressure of the working air _Ad1 is changed so that a predetermined target value is obtained. For example, when the pressure of the working air A _d1 is the working pressure P _dc1 , the pressure of the working air A _d1 when transporting a smaller amount of powder per unit time than the amount of powder transported per unit time. Is an operating pressure P _dc2 which is a lower pressure than the operating pressure P _dc1 . Here, the operating pressure P _dc1 and operating pressure P _dc2 is an example of an operating pressure P _d.

Hereinafter, embodiments in which air is used as the carrier air A _C , the working air A _d1, and the working air A _d2 will be described. However, the present invention is not limited to air, and an inert gas such as nitrogen or a gas such as an active gas is used. You can also

FIG. 2 is a diagram showing an outline of the configuration of the flow dividing device 13. The flow dividing device 13 includes a branch block 51, an ejector 52, an ejector 53, and a pressure sensor 54. The branch block 51 is formed of a resin such as polyethylene, ceramics, or a metal such as stainless steel. Inside the branch block 51, a hollow cylindrical transport path for transporting the transport air _AC and powder is formed. An ejector 52 is provided on the upstream side of the entrance of the conveyance path formed inside the branch block 51. That is, the ejector 52 is provided at the entrance of the conveyance path formed inside the branch block 51. The exit of the conveyance path formed inside the branch block 51 is connected to the processing device 15 through piping or the like. Further, the conveyance path formed inside the branch block 51 branches to the ejector 53 side. That is, since the conveyance path of the branch block 51 is branched inside, the conveyance path of the branch block 51 has one inlet and two outlets.

The ejector 52 is formed of a resin such as polyethylene, ceramics, or a metal such as stainless steel. Ejector 52, when operating air A _d1 supplied from the control unit 14 is the operation pressure P _d, together cause a negative pressure in the inlet side, by causing a positive pressure to the outlet side, the transport air A _C and Transport powder. Operating pressure P _d is the same pressure or the pressure of the transport air A _C, or at a higher pressure than the pressure of the transport air A _C. That is, the ejector 52, the operating pressure P _d at a working air A _d1, the transport air A _C inlet of the conveying path of decision block 51 that produces a positive pressure, conveying in the conveying path of decision block 51 Air _AC and powder are conveyed to the processing apparatus 15 side.

When the working air A _d1 supplied from the control device 14 is the seal pressure P _s , the ejector 52 sets the absolute value of the positive pressure generated when the conveying air _AC and the powder are carried out from the outlet of the conveying path. In comparison, a positive pressure having a small absolute value is generated, and the backflow of the conveying air _AC and the powder from the branch block 51 to the control device 14 is prevented. The seal pressure P _s is a pressure lower than the operating pressure P _{d and} higher than the atmospheric pressure. _Assuming that the working air A _d1 is the sealing pressure P _s , the absolute value is smaller than the absolute value of the positive pressure generated when the conveying air _AC and the powder are carried out from the outlet of the conveying path to the processing device 15 side. A positive pressure is generated in the ejector 52, and the carrier air _AC and powder supplied from the supply device 12 are not sucked into the pipe connected to the control device 14, thereby preventing clogging of the pipe. The flow rate and pressure of the working air A _d1 can be properly maintained.

The ejector 53 is made of a resin such as polyethylene, ceramics, or a metal such as stainless steel. When the operating air A _d2 supplied from the control device 14 is the operating pressure P _d , the ejector 53 generates a negative pressure on the inlet side and a positive pressure on the outlet side, thereby causing the carrier air _AC and Transport powder. That is, the ejector 53, the operating pressure P _d at a working air A _d2, of the transport path of the branch block 51, along with causing negative pressure in the conveying air A _C of the transport path branches into ejector 53 side, by causing the positive pressure conveying air a _C of the piping side to the recovery tank 16 and conveys the transport air a _C and powder in the transport path of decision block 51 toward the pipe to a recovery tank 16.

Ejector 53, when operating air A _d2 supplied from the control unit 14 is a sealing pressure P _s, the absolute value of the negative pressure generating when unloading the transport air A _C and the powder from the outlet of the conveying path In comparison, a negative pressure having a small absolute value is generated to prevent backflow of the conveying air _AC and the powder. If the working air A _d2 is the seal pressure P _s , a negative pressure with a small absolute value is generated compared to the absolute value of the negative pressure generated when the transport air _AC and powder are transported from the outlet of the transport path. Since a positive pressure having an absolute value smaller than the absolute value of the positive pressure generated when the conveying air _AC and the powder are conveyed is generated on the outlet side, the suction of the powder from the pipe to the recovery tank 16 is performed. Can be prevented.

The pressure sensor 54, the powder is measured value of the pressure of the transport air A _C pathway to be conveyed, and supplies a pressure measurement signal indicative of the value of the measured pressure to the controller 14. The pressure sensor 54 also measures the pressure of the transport air A _C as a negative pressure atmospheric pressure as a reference, may be to measure the pressure of the transport air A _C absolute vacuum as a reference. The pressure sensor 54 may be of any type such as a diaphragm type, a bellows type, or a Bourdon tube type. For example, the pressure sensor 54 may be a diaphragm type that detects the strain of the diaphragm with a strain gauge such as a semiconductor having a piezoresistive effect. Further, for example, a diaphragm type that detects the deformation of the diaphragm by detecting a change in capacitance can be used as the pressure sensor 54.

  Next, detailed structures of the branch block 51, the ejector 52, the ejector 53, and the pressure sensor 54 will be described.

FIG. 3 is a view showing a cross section of the flow dividing device 13. Inside the branch block 51, a transport path 71 and a transport path 72 for transporting the transport air _AC and powder are formed. The conveyance path 71 is formed as a cavity that leads from the inlet shown on the left side in FIG. 3 to the outlet shown on the right side in FIG. 3. For example, the conveyance path 71 can have a shape extending linearly in the conveyance direction from the inlet to the outlet. The cross-sectional shape of the transport path 71 can be a constant circle from the entrance to the exit.

  The conveyance path 72 is formed as a cavity that branches from the conveyance path 71 inside the branch block 51 and is connected to the outlet shown on the lower side in FIG. 3, which is an outlet different from the outlet of the conveyance path 71. Yes. For example, the conveyance path 72 can have a shape extending linearly in the conveyance direction from the position branched from the conveyance path 71 to the exit. Further, the cross-sectional shape of the transport path 72 can be a constant circle from the position branched from the transport path 71 to the exit. The cross section of the transport path 72 can have the same shape as the cross section of the transport path 71.

  More specifically, the axis passing through the center of the circular section of the transport path 72, which is the axis indicating the transport direction of the transport path 72, is the axis indicating the transport direction of the transport path 71, and the center of the circular section. One end of the conveyance path 72 is connected to the middle of the conveyance path 71 so as to intersect the passing axis.

Thus, the conveyance path 71 and the conveyance path 72 are formed in a shape that does not hinder the flow of the conveyance air _AC and the powder. The transport path 71 and the transport path 72 are not provided with a mechanism for regulating the flow such as a valve that opens and closes.

The angle θ formed by the axis indicating the conveyance direction of the conveyance path 71 and the axis indicating the conveyance direction of the conveyance path 72 at a position where the conveyance path 72 branches from the conveyance path 71 is any one of 15 degrees to 165 degrees. Can do. By experiment, if the conveyance path 72 branches from the conveyance path 71 within the range of 15 degrees to 165 degrees, the conveyance air _AC and the powder can be diverted, and the processing device 15 or the recovery tank 16 it can safely transport air a _C and powder either one was confirmed.

More preferably, the angle θ formed by the conveyance path 71 and the conveyance path 72 at a position where the conveyance path 72 branches from the conveyance path 71 can be any one of 30 degrees to 60 degrees. Through experiments, it was confirmed that when the conveyance path 71 branches from the conveyance path 71 within a range of 30 to 60 degrees, the reproducibility of the diversion increases, and the diversion can be performed more reliably and more stably. . Therefore, in this case, more reliably, more stable, so it can safely transport air A _C and powder in one of the processing device 15 or the recovery tank 16.

More preferably, the angle θ formed by the transport path 71 and the transport path 72 at a position where the transport path 72 branches from the transport path 71 can be any one of 90 degrees to 150 degrees. According to experiments, when the conveyance path 72 branches from the conveyance path 71 within a range of 90 to 150 degrees, when supplying powder to the processing apparatus 15, a powder with a desired flow rate is more stably supplied. It was confirmed that it was possible. Therefore, in this case, it becomes possible to supply and stop the conveying air _AC and powder to the processing apparatus 15 more reliably and more stably.

  That is, the conveyance path 72 branches from the conveyance path 71 at an angle of 15 degrees to 165 degrees with respect to the conveyance path 71. When it is desired to divert more reliably, it is more preferable that the transport path 72 is branched from the transport path 71 at an angle of 30 degrees to 60 degrees with respect to the transport path 71. Further, when it is desired to more stably supply powder at a desired flow rate to the processing apparatus 15, the conveyance path 72 is branched from the conveyance path 71 at an angle of 90 degrees to 150 degrees with respect to the conveyance path 71. More preferably.

  In the example shown in FIG. 3, the conveyance path 72 branches from the conveyance path 71 at an angle of 150 degrees with respect to the conveyance path 71.

From the entrance of the conveyance path 71, the conveyance air _AC and the powder supplied from the supply device 12 are taken in via the ejector 52. The transport air _AC and powder taken from the entrance of the transport path 71 are carried out from the exit of the transport path 71 or are carried out from the exit of the transport path 72.

  Thus, the conveyance path 71 is hollow and formed in a cylindrical shape. The conveyance path 72 is hollow and branched from the conveyance path 71 and has a cylindrical shape. The conveyance path 71 and the conveyance path 72 are formed so that airtightness is maintained by closing the parts other than the entrance and the exit, respectively.

  The entrance of the transport path 71 is connected to the exit side of the ejector 52 so that airtightness is maintained. Moreover, the exit of the conveyance path | route 71 is connected to piping to the processing apparatus 15 so that airtightness may be maintained. Furthermore, the exit of the conveyance path 72 is connected to the entrance side of the ejector 53 so that airtightness is maintained.

Further, the pressure conduit 73 is formed as a cavity connected to the pressure sensor 54 from a position upstream of the branch between the transport path 71 and the transport path 72 among the positions of the transport path 71. That is, the pressure conduit 73 is formed as a cavity that connects the position between the branch of the transport path 71 and the transport path 72 and the entrance of the transport path 71 to the pressure sensor 54 among the positions of the transport path 71. The length and the internal volume of the pressure conduit 73 are suitable for obtaining the response and accuracy of the pressure sensor 54. For example, the cross section of the pressure conduit 73 is smaller than the cross sectional area of the transport path 71, and the pressure conduit 73 is formed so as to linearly connect the transport path 71 and the pressure sensor 54. The pressure sensor 54 to measure the pressure of the transport air A _C of the pressure sensor 54 side of the pressure conduit 73, the pressure of the transport air A _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72 Measure.

Hereinafter, the pressure of the transport air A _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72, referred to as the branch prior to the transport medium pressure.

The ejector 52 includes a conveyance path 81, a working air introduction part 82, a working air distribution part 83, an air jet outlet 84, and a throttle part 85. The conveyance path 81 is formed inside the ejector 52 main body. The conveyance path 81 is a cavity (hollow cylindrical shape) extending in the same direction as the axis of the conveyance path 71 in the conveyance direction. For example, the transport path 81 is formed as a cavity extending linearly at the entrance of the transport path 71. The cross-sectional shape of the exit of the transport path 81 is formed to be the same as the cross-sectional shape of the entrance of the transport path 71. In this way, it is possible to prevent adhesion of turbulence and powder flow conveying air A _C.

A pipe for introducing the working air A _d1 is connected to the working air introduction part 82, and the working air A _d1 is supplied. The working air _{Ad 1} supplied to the working air introduction unit 82 is sent to the working air distribution unit 83. The working air distributor 83 is a cavity formed separately from the transport path 81 and is formed in an annular shape that goes around the outside of the transport path 81 around a point on the transport path 81 in the transport direction. It is a hollow.

From working air distribution unit 83, in a direction perpendicular or acute angle to the conveying air A _C and powder transport direction of the axis of the conveying path 81 (transport path 71), a tube for passing the working air A _d1 is formed Then, the pipe for passing the working air _{Ad 1} opens as an air jet outlet 84 on the wall surface of the transport path 81. A plurality of pipes for passing the working air _Ad1 are formed at equal intervals, and the plurality of air outlets 84 open on the wall surface of the transport path 81 at equal intervals. More specifically, the air ejection port 84 is provided on the circumference of a circle orthogonal to the axis centering on a point on the axis of the conveyance path 81 in the conveyance direction.

  A diaphragm 85 is provided in the middle of the conveyance path 81. In the diaphragm 85, the conveyance path 81 is narrowed down. That is, the cross-sectional area of the conveyance path 81 gradually decreases to the throttle unit 85 as it proceeds from the entrance, and gradually increases as it proceeds from the throttle unit 85 to the exit. The air outlet 84 is arranged in the vicinity of the throttle portion 85 and closer to the outlet of the conveyance path 81.

From the air ejection port 84 provided at a position beyond the narrowed portion 85 when viewed from the inlet side, in a direction perpendicular or acute angle with respect to the conveying direction of the shaft of the conveying air A _C and powder, at operating pressure P _d When a working air a _d1 is ejected as a transport air a _C, the throttle portion 85 is narrowed, negative pressure in the conveying air a _C at a flow rate of conveying air a _C and powder is increased, the inlet side of the ejector 52 It occurs, so that the positive pressure is generated in the transport air a _C on the outlet side of the ejector 52. In this case, the transport air A _C at the inlet side of the conveying path 71, the positive pressure required for conveying the powder occurs.

Further, when the operating air A _d1 is sealing pressure P _s is ejected as a transport air A _C from the air ejection port 84, the conveying air A _C in air ejection port 84, the positive pressure required to prevent backflow Arise.

The ejector 53 includes a transport path 91, a working air introduction part 92, a working air distribution part 93, an air jet outlet 94, and a throttle part 95. The conveyance path 91 is formed inside the ejector 53 main body. The conveyance path 91 is a cavity (hollow cylindrical shape) extending in the same direction as the axis of the conveyance path 72 in the conveyance direction. For example, the transport path 91 is formed as a cavity extending linearly from the exit of the transport path 72. The cross-sectional shape of the entrance of the transport path 91 is formed to be the same as the cross-sectional shape of the exit of the transport path 72. In this way, it is possible to prevent adhesion of turbulence and powder flow conveying air A _C.

A pipe for introducing the working air _Ad2 is connected to the working air introduction section 92, and the working air _Ad2 is supplied. Working air A _d2 supplied to the working air inlet section 92 is sent to the operating air distributor 93. The working air distributor 93 is a cavity formed separately from the transport path 91 and is formed in an annular shape that goes around the outside of the transport path 91 around a point on the transport path 91 in the transport direction. It is a hollow.

A tube for passing the working air _Ad2 is formed from the working air distributor 93 in a direction perpendicular to or perpendicular to the transporting air _AC and the powder transporting direction axis in the transporting path 91 (conveying path 72). Then, the pipe for passing the working air _Ad2 opens as an air outlet 94 on the wall surface of the transport path 91. A plurality of pipes for passing the working air _Ad2 are formed at equal intervals, and the plurality of air ejection openings 94 open at equal intervals on the wall surface of the conveyance path 91, respectively. More specifically, the air jets 94 are provided on the circumference of a circle perpendicular to the axis centered on a point on the axis in the conveyance direction of the conveyance path 91.

  A diaphragm unit 95 is provided in the middle of the conveyance path 91. In the diaphragm 95, the transport path 91 is narrowed down. That is, the cross-sectional area of the conveyance path 91 gradually decreases to the throttle unit 95 as it proceeds from the entrance, and gradually increases as it proceeds from the throttle unit 95 to the exit. The air outlet 94 is disposed in the vicinity of the throttle portion 95 and closer to the outlet of the conveyance path 91.

At an operating pressure P _d , a direction perpendicular to or perpendicular to the axis of the conveying air _AC and the powder conveying direction from an air outlet 94 provided at a position beyond the throttle portion 95 when viewed from the inlet side. When a working air a _d2 is ejected as a transport air a _C, the throttle portion 95 is narrowed, raised flow velocity of the transport air a _C and powder, the negative pressure in the conveying air a _C at the inlet side of the ejector 53 It occurs, so that the negative pressure in the conveying air a _C on the outlet side of the conveying path 72 occurs. In this case, the transport air A _C on the outlet side of the ejector 53, the positive pressure required for conveying the powder occurs.

Further, when the operating air A _d2 is sealing pressure P _s is ejected as a transport air A _C from the air ejection port 94, the conveying air A _C on the outlet side of the ejector 53, the positive pressure required to prevent backflow Occurs.

Thus, the branch block 51, a hollow cylindrical conveying path 71 and conveyance path 72 to which the particles are transported is formed together with the conveying air A _C. The transport path 72 branches from the transport path 71 at an angle θ of 15 degrees to 165 degrees with respect to the transport path 71.

The ejector 52 is provided at the entrance of the transport path 71 and transports the transport air _AC and powder in the same direction as the transport direction axis of the transport path 71. Ejector 52, when unloading the transport air A _C and the powder from the outlet of the conveying path 71, causing the pressure in the transport air A _C at the inlet side of the conveying path 71.

The ejector 53 is provided at the exit of the transport path 72 and transports the transport air _AC and the powder from the transport path 72 in a direction coaxial with the transport direction axis of the transport path 72. Ejector 53, when unloading the transport air A _C and the powder from the outlet of the conveying path 72, causing the pressure in the transport air A _C on the outlet side of the conveying path 72.

  The powder carried out from the exit of the conveyance path 71 is supplied to the processing device 15 and processed. The powder carried out from the outlet of the conveyance path 72 is supplied to the collection tank 16 and collected.

  Next, the configuration of the control device 14 will be described. FIG. 4 is a block diagram illustrating a configuration of the control device 14. The control device 14 includes a computer 101 and an electropneumatic conversion unit 102.

  The computer 101 is a computer as a dedicated control device such as a so-called sequencer (programmable logic controller), a factory computer, or a general-purpose personal computer, and controls the supply device 12 and the flow dividing device 13 by executing a control program. To do.

The electropneumatic converter 102 includes an air valve whose opening degree is controlled by an electrical signal. The electropneumatic converter 102 diverts the air supplied from the outside to the carrier air A _C , the working air A _d1, or the working air A _d2 . The electropneumatic converter 102 changes the pressure and flow rate of the carrier air A _C , the working air A _d1, and the working air A _d2 in accordance with the electrical signal supplied from the computer 101.

  The computer 101 includes a CPU (Central Processing Unit) 121, a ROM (Read Only Memory) 122, a RAM (Random Access Memory) 123, a bus 124, an input / output interface 125, an input unit 126, an output unit 127, a storage unit 128, and a communication unit. 129 and the drive 130.

  In the computer 101, a CPU 121, a ROM 122, and a RAM 123 are connected to each other by a bus 124.

  An input / output interface 125 is further connected to the bus 124. The input / output interface 125 indicates an instruction button, a switch, a dial, or a state of the flow dividing device 13 or the processing device 15 (for example, a mode such as preparation, cleaning or processing, or a status such as stop, standby or processing). An input unit 126 including an input board for acquiring a signal, an output unit 127 including an output board for outputting a display, a speaker, a binary or variable voltage / current, a storage unit 128 including a hard disk or a non-volatile memory, and a network A communication unit 129 including an interface and a device control communication interface, and a drive 130 for driving a removable medium 131 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory are connected.

More specifically, the input unit 126 is supplied from the pressure sensor 54, the pressure of the transport air A _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72, i.e., before the branch conveying medium pressure Obtain a pressure measurement signal indicating the value. The output unit 127 supplies the electropneumatic conversion unit 102 with an electrical signal for controlling the pressure and flow rate of the carrier air A _C , the working air A _d1, and the working air A _d2 . Further, the output unit 127 supplies the high-voltage generating unit 103 with an electrical signal that indicates on / off of the charging application voltage and the voltage of the charging application voltage.

  In the computer 101 configured as described above, the CPU 121 loads, for example, the control program stored in the storage unit 128 to the RAM 123 via the input / output interface 125 and the bus 124, and executes the control program. A series of processes described in (1) is performed.

  The control program executed by the computer 101 (CPU 121) is, for example, a magnetic disk (including a flexible disk), an optical disk (CD-ROM (Compact Disc-Read Only Memory), DVD (Digital Versatile Disc), etc.), a magneto-optical disk, Alternatively, it is recorded on a removable medium 131 which is a package medium made of a semiconductor memory, or provided via a wired or wireless transmission medium such as a local area network, the Internet, or digital satellite broadcasting.

  The control program can be installed in the computer 101 by storing the removable medium 131 in the drive 130 and storing it in the storage unit 128 via the input / output interface 125. The control program can be installed in the computer 101 by being received by the communication unit 129 via a wired or wireless transmission medium and stored in the storage unit 128. In addition, the control program can be installed in the computer 101 in advance by storing it in the ROM 122 or the storage unit 128 in advance.

Next, control of the pressure of the working air A _d1 and the working air A _d2 will be described. FIG. 5 is a timing chart showing changes in pressure of the working air A _d1 and the working air A _d2 supplied from the control device 14 to the flow dividing device 13. In FIG. 5, the horizontal axis indicates the time direction, and the vertical axis indicates the pressure.

Until time t _1, since the pre-processing unit 15 for processing the is powder in the preparation mode, operating air A _d1 is a sealing pressure P _s, working air A _d2 is the operating pressure P _d. At this time, the conveyance air A _C and the powder supplied from the supply device 12 to the flow dividing device 13 are discharged from the conveyance path 72 of the branch block 51 due to the negative pressure of the conveyance air A _C generated on the outlet side of the conveyance path 72. To the collection tank 16 through the pipe. Since the transport air _AC and the powder do not flow to the exit side of the transport path 71 of the branch block 51, they are not supplied to the processing device 15.

During the time from time t ₁ to time t ₂ , the powder is processed by the processing device 15 in the processing mode. Therefore, the operating air A _d1 is set to the operating pressure P _dc1 and the operating air A _d2 is set to the seal pressure P. _s . At this time, the conveyance air A _C and the powder supplied from the supply device 12 to the flow dividing device 13 are discharged from the conveyance path 71 of the branch block 51 by the positive pressure of the conveyance air A _C generated on the inlet side of the conveyance path 71. To the processing device 15 through the pipe. The transport air _AC and the powder do not flow to the outlet side of the transport path 72 of the branch block 51 and therefore do not flow to the collection tank 16. Also, working air A _d2 is because there is a sealing pressure P _s, the powder from the pipe to a collection tank 16 will not flow back.

At time from time t ₂ to time t _3, since the processing device 15 becomes the cleaning mode to stop processing of the powder, working air A _d1 is a sealing pressure P _s, working air A _d2, the operation The pressure is P _d . At this time, the carrier air _AC and the powder flow to the recovery tank 16 through the piping and do not flow to the processing device 15.

Further, since the powder is processed by the processing device 15 that has been in the processing mode again from time t ₃ to time t ₄ , the operating air A _d1 is set to the operating pressure P _dc2, and the operating air A _d2 is The seal pressure is P _s . The operating pressure P _dc2 is higher than the seal pressure P _{s and} lower than the operating pressure P _dc1 . At this time, the carrier air _AC and the powder flow to the processing device 15 through the piping and do not flow to the recovery tank 16.

Further, the pressure of the working air A _d1, by the operating pressure P _dc1 operating pressure P _dc2 lower than compared to the amount conveyed per unit time in the time from time t ₁ to time t _2, the time During the time from t ₃ to time t ₄ , a smaller amount of powder per unit time is supplied to the processing device 15. As a result, for example, the processing device 15 has the same cycle time, the container having different internal volumes for the time from the time t ₁ to the time t ₂ and the time from the time t ₃ to the time t _4. An amount of powder corresponding to the internal volume can be stored.

After time t _{4 when} the processing of the powder in the processing device 15 is finished, the working air A _d1 is set to the sealing pressure P _s and the working air A _d2 is set to the operating pressure P _d , so that the conveying air A _C The powder flows into the recovery tank 16 through the pipe and does not flow into the processing device 15.

In this way, the control device 14 controls the ejector 52 and the ejector 53 so that the ejector 52 and the ejector 53 convey the transport air _AC and the powder exclusively in terms of time. Further, when supplying the powder to the processing device 15, the control device 14 changes the pressure of the working air _{Ad 1} ejected from the air ejection port 84 of the ejector 52.

More specifically, when the control device 14 supplies powder to the processing device 15, the pressure measured by the pressure sensor 54 becomes a predetermined target value corresponding to the amount of powder conveyed per unit time. In addition, the pressure of the working air _Ad1 ejected from the air ejection port 84 of the ejector 52 is changed.

Then, the flow rate of the powder to be supplied to the processing unit 15, a pre-branch conveying medium pressure, for a particular relationship between the pressure of the transport air A _C ejected from the air ejection port 84 of the ejector 52 will be described. Here, the flow rate refers to the amount of powder that is moved per unit time. The flow rate may be a so-called mass flow rate that is the mass of the powder that is moved per unit time, or may be a so-called volume flow rate that is the amount of the volume of the powder that is moved per unit time. . Hereinafter, the mass flow rate will be described as an example.

6 and 7, it identifies a flow of the powder to be supplied to the processing unit 15, a pre-branch conveying medium pressure, the relationship between the pressure of the transport air A _C ejected from the air ejection port 84 of the ejector 52 FIG. 6 is a flowchart for explaining a quantitative supply setting procedure for setting data indicating the relationship in the control device 14. FIG. First, as preceding metering setting procedure, the amount and pressure of the transport air A _C supplied to the supply unit 12 is constant, working air A _d2 is a sealing pressure P _s, is constant.

In step S11, the control unit 14, stepwise varying the pressure of the operating air A _d1 ejected from the air ejection port 84 of the ejector 52 for each 0.05 kg / cm ^2. In step S11, the user operating the processing system 1 is manually, be allowed to stepwise change the pressure in the working air A _d1 ejected from the air ejection port 84 of the ejector 52 for each 0.05 kg / cm ² Good. The user includes an operator of the machining system 1, a maintenance person who performs maintenance management of the machining system 1, a worker in the machining process in which the machining system 1 is installed, a person in charge of the construction in which the machining system 1 is installed, and the like. included.

In step S12, the user actually performs per unit time of a predetermined length such as 1 minute or 30 seconds from the exit of the conveyance path 71 for each pressure of the working air _Ad1 ejected from the air ejection port 84 of the ejector 52. Measure the amount of the powder delivered to the container, that is, the actual flow rate. For example, the user measures the flow rate of the powder by collecting the powder supplied to the stopped processing apparatus 15 and measuring the mass of the collected powder. For example, the user removes the pipe connected to the processing device 15 from the exit of the transport path 71, and assigns a dedicated or general-purpose container such as a can, a box, or a bag to the exit or the pipe of the transport path 71. The powder discharged from the outlet is collected, and the mass of the collected powder is measured to measure the powder flow rate.

In step S13, the control device 14 reads the pressure measurement signal supplied from the pressure sensor 54, thereby determining the flow rate of the powder at each of the pressures of the working air _Ad1 ejected from the air ejection port 84 of the ejector 52. At the time of measurement, the negative pressure that is the conveyance medium pressure before branching is measured. In step S13, the user may measure the negative pressure, which is the pre-branch conveyance medium pressure, by reading the display of the pressure sensor 54.

  In addition, although the procedure of step S11 thru | or step S13 was demonstrated in order, actually, it is performed in parallel, ie, simultaneously.

After the procedure of Steps S11 to S13, in Step S14, the user displays a correlation diagram showing the correlation among the pressure of the working air _Ad1 , the flow rate of the powder, and the negative pressure that is the transport medium pressure before branching. create. That is, in step S14, the pressure of the desired when the flow rate of the powder is unloaded from the exit of the conveying path 71, the conveying air A _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72 and the pressure of the transport air a _C ejected from the air ejection port 84 of the ejector 52 is identified. Correlation diagram, the value of the negative pressure in the conveying air A _C of the conveying path 71 to vary the pressure of the operating air A _d1 (pressure) of the powder vary with the negative pressure in the conveying air A _C of the conveying path 71 (pressure) What is necessary is just to be able to grasp the flow rate. For example, the correlation diagram, the pressure of the working air A _d1, and the powder flow rate, even shows the relationship between the negative pressure in the branch before conveying medium pressure in one figure, the working air A _d1 It may consist of two diagrams: a diagram showing the relationship of the negative pressure, which is the pre-branching conveyance medium pressure, to the pressure, and a diagram showing the relationship of the powder flow rate to the negative pressure, which is the pre-branching conveyance medium pressure . Further, for example, the correlation diagram may be represented as a chart, may be represented by arranged data, or may be represented by electronic data.

The next procedure, step S15 to step S26, is a verification test procedure that demonstrates the relationship shown in the correlation diagram. In step S15, the user reads the pressure of the working air _Ad1 and the negative pressure that is the pre-branch transport medium pressure at a flow rate of 10 g / min from the correlation diagram created in step S14.

  In step S <b> 16, as a verification test, the user sets the negative pressure, which is the pre-branch conveyance medium pressure, at the flow rate of 10 g / min to the control device 14 as a target value.

In step S <b> 17, the control device 14 starts PID (Proportional-Integral-Derivative) control of the pressure of the working air Ad <b> ₁ with the set negative pressure target value by an operation from the user. That is, the control device 14 uses the negative pressure, which is the transport medium pressure before branching, indicated by the pressure measurement signal supplied from the pressure sensor 54 as a feedback value, and a deviation value from the set target value, and an integral value thereof. From the differential value, the pressure of the working air _Ad1 is changed so that the negative pressure, which is the pre-branch conveyance medium pressure, becomes the target value.

  In step S18, the user measures the flow rate of the powder discharged from the exit of the conveyance path 71 at a predetermined length such as 1 minute or 30 seconds.

In step S19, the user determines whether or not the flow rate measured in step S18 is within a predetermined error range with respect to the flow rate desired in step S15 or step S22 described later. For example, when the negative pressure in the conveying air A _C to the flow rate of 10 g / min (grams per minute) (pressure) is the target value, the user is measured flow rate in step S18 is 5% of the 10 g / min It is determined whether it is within the error range. In step S19, if the measured flow rate is determined not to be within a predetermined error tolerance range, the procedure proceeds to step S20, the user, the negative pressure in the conveying air A _C in the correlation diagram (pressure) and working air A _d1 Correct the pressure. Specifically, for example, if it is determined in step S19 that the measured flow rate is larger than the upper limit of the error range of the desired flow rate (for example, 10 g / min) in step S15 or step S22 described later, in S20, the user, in the correlation diagram, the negative pressure (pressure) and the pressure be lowered correct working air a _d1 of the transporting air a _C of the powder to the flow rate. For example, when it is determined in step S19 that the measured flow rate is less than the lower limit of the error range of the desired flow rate (for example, 10 g / min) in step S15 or step S22 described later, in step S20, the user, in the correlation diagram, the negative pressure (pressure) and pressure increasing correction of the working air a _d1 of the transporting air a _C of the powder to the flow rate.

  After step S20, the procedure returns to step S18, and the above-described processing is repeated.

If it is determined in step S19 that the measured flow rate is within a predetermined error range, the procedure proceeds to step S21, and the user determines whether or not the flow rate range up to 120 g / min has been measured. If it is determined in step S21 that the flow rate range up to 120 g / min is not measured, the procedure proceeds to step S22, and the user operates the operating air A when the flow rate is increased by 5 g / min from the current target value. The pressure of _d1 and the negative pressure that is the transport medium pressure before branching are read from the correlation diagram.

  In step S23, as a demonstration test, the user sets the negative pressure, which is the conveyance medium pressure before branching when the flow rate per minute is increased by 5 g / min from the current target value, to the target value. After step S23, the procedure returns to step S17, and the above-described processing is repeated.

  If it is determined in step S21 that the flow rate range up to 120 g / min has been measured, the procedure proceeds to step S24, and the user operates in the flow rate range from 10 g / min to 120 g / min as the flow rate per minute. Then, the flow rate of the powder by the negative pressure that is the transport medium pressure before branching corrected in the procedure of step S20 is measured.

  In step S25, the user determines whether or not the measured powder flow rate is within a predetermined error range in the flow rate range from 10 g / min to 120 g / min. For example, the user determines whether or not the flow rate measured in step S24 is in the range of 5% error of the flow rate with respect to the negative pressure in the flow rate range from 10 g / min to 120 g / min.

If it is determined in step S25 that the measured powder flow rate is not within the predetermined error range in the flow rate range from 10 g / min to 120 g / min, the procedure proceeds to step S26, and the user proceeds to step S20. in a similar procedure as to correct the pressure of the negative pressure (pressure) and working air a _d1 of the transporting air a _C in the correlation diagram.

  After step S26, the procedure returns to step S24, and the above-described processing is repeated.

If it is determined in step S25 that the measured powder flow rate is within a predetermined error range in the flow rate range from 10 g / min to 120 g / min, the powder flow rate and the pre-branch transport medium pressure are determined. Since the correspondence between the negative pressure and the pressure of the working air A _d1 is appropriate, the procedure proceeds to step S27, and the user proceeds with the flow rate of the powder, the negative pressure that is the conveyance medium pressure before branching, and the working air A _d1. The flow rate / air pressure data indicating the correspondence with the pressure is stored in the storage unit 128 of the computer 101, and the fixed supply setting procedure ends.

As described above, the storage unit 128 of the computer 101 stores the flow rate / air pressure data indicating the correspondence between the powder flow rate, the negative pressure that is the conveyance medium pressure before branching, and the pressure of the working air _Ad1. Will be.

In the flow rate / air pressure data, the flow rate of the powder and the pressure of the working air _Ad1 associated with the negative pressure that is the transport medium pressure before branching are determined in the control of the quantitative supply included in the supply control process. Used as operating pressure P _dc .

  As described above, it is possible to acquire conditions for conveying powder at a desired flow rate.

  The processing system 1 switches whether to process the powder or to flow the pipe for storing the powder in the collection tank 16 without processing the powder, and to store the powder in the computer 101 when processing the powder. The constant supply is controlled with reference to the flow rate / air pressure data stored in the unit 128.

  FIG. 8 is a flowchart for explaining supply control processing performed by the computer 101 that executes the control program.

  In step S51, the computer 101 acquires an instruction value for the flow rate of the powder. For example, the computer 101 acquires an instruction value for the powder flow rate at that time from an external device such as the processing apparatus 15. Further, for example, the computer 101 acquires an instruction value of the flow rate of the powder instructed by the user operating the input unit 126 from the input unit 126 such as an instruction button, a switch, or a dial.

In step S <b> 52, the computer 101 is configured to supply the negative pressure and the working air _{Ad <b} > 1 that are the conveyance medium pressure before branching that is supplied with the powder of the instructed flow rate from the flow rate / air pressure data stored in the storage unit 128. The operating pressure P _dc that is the pressure is extracted.

  In step S53, the computer 101 sets the negative pressure (pressure) extracted in step S52 as a target value for PID control. In step S54, the computer 101 determines whether or not to change the flow rate by referring to an interrupt of the sequence control program, a signal from an external device to the input unit 126, or an operation to the input unit 126 by the user. To do.

If it is determined in step S54 that the flow rate is to be changed, the procedure proceeds to step S55, and the computer 101 acquires a new instruction value for the powder flow rate, as in step S51. In step S56, the computer 101 causes the negative pressure and the working air A, which are the conveyance medium pressure before branching, to be supplied with the powder at the newly designated flow rate from the flow rate / air pressure data stored in the storage unit 128. _The operating pressure P _dc that is the pressure of _d1 is extracted.

  In step S57, the computer 101 sets the negative pressure (pressure) extracted in step S56 as a target value for PID control. After step S57, the procedure proceeds to step S58.

  If it is determined in step S54 that the flow rate is not changed, the procedure from step S55 to step S57 is skipped, and the procedure proceeds to step S58.

In step S <b> 58, the computer 101 determines whether or not to carry the powder to the processing apparatus 15 from an instruction transmitted from the processing apparatus 15 or an instruction from the user according to an operation on the input unit 126. In step S58, the case where it is determined that carries out the powder into the processing apparatus 15, the procedure proceeds to step S59, the output unit 127 to output the electrical signal to the working air A _d2 in sealing pressure P _s. The electro-pneumatic conversion unit 102 in accordance with an instruction by the electric signal from the output unit 127, the working air A _d2 in sealing pressure P _s. Ejector 53, the working air A _d2 of sealing pressure P _s, causes a negative pressure in the conveying air A _C on the outlet side of the conveying path 72.

After step S59, the procedure proceeds to step S60, the computer 101 starts the PID control of the target value of the negative pressure in the conveying air A _C of the conveying path 71 that is set (pressure), the working air A _d1 In step S52 or step S56, the output unit 127 is made to output an electrical signal for causing the operating pressure _Pdc extracted from the flow rate / air pressure data. The electro-pneumatic conversion unit 102 in accordance with an instruction by the electric signal from the output unit 127, the working air A _d1 to operating pressure P _dc. Ejector 52, the working air A _d1 operating pressure P _dc, causing a negative pressure in the conveying air A _C on the outlet side of the conveying path 71. That is, in step S60, the control device 14 uses the negative pressure, which is the pre-branch conveyance medium pressure, indicated by the pressure measurement signal supplied from the pressure sensor 54 as a feedback value, and a deviation value from the set target value. From the integrated value and the differential value, the pressure of the working air _Ad1 is changed so that the negative pressure, which is the pre-branch conveyance medium pressure, becomes the target value.

  Thereby, the powder supplied from the supply device 12 is carried out from the outlet of the conveyance path 71 and supplied to the processing device 15. Further, the instructed flow rate of powder is supplied to the processing device 15.

On the other hand, in step S58, the case where the powder is determined not to carry-out the processing apparatus 15, the procedure proceeds to step S61, the computer 101 causes the output unit 127, an electric signal for the working air A _d1 to sealing pressure P _s Is output. The electro-pneumatic conversion unit 102 in accordance with an instruction by the electric signal from the output unit 127, the working air A _d1 to sealing pressure P _s. Ejector 52, the working air A _d1 of sealing pressure P _s, the transport air A _C in air ejection port 84, causes a positive pressure required to prevent backflow.

After step S61, the procedure proceeds to step S62, and the computer 101 causes the output unit 127 to output an electrical signal that causes the working air A _d2 to be at the operating pressure P _d . The electropneumatic conversion unit 102 sets the working air A _d2 to the operating pressure P _d in response to an instruction from the output unit 127 by an electric signal. Ejector 53, the working air A _d2 operating pressure P _d, causing a negative pressure in the conveying air A _C on the outlet side of the conveying path 72.

  As a result, the powder supplied from the supply device 12 returns to the recovery tank 16 and is not supplied to the processing device 15.

  After step S60 and after step S62, the procedure returns to step S54, and the above-described processing is repeated.

  When a supply stop is requested from the outside, the supply control process is stopped by an interrupt.

  The series of processes described above can be executed by software or can be executed by hardware.

  The control program executed by the computer 101 may be a program that is processed in time series in the order described in this specification, or may be necessary in parallel or when a call is made. It may be a program that performs processing at timing.

  In this way, the powder can be more reliably diverted more easily and with less clogging. Further, the powder can be more reliably divided and conveyed at a desired flow rate while reducing clogging more easily. Furthermore, it is possible to acquire conditions for conveying powder at a desired flow rate.

In addition, although demonstrated that the ejector 52 was provided in the entrance of the conveyance path | route 71, you may make it provide the ejector 52 in the exit of the conveyance path | route 71. FIG. Further, it is described that the ejector 52 is conveyed toward the processing unit 15 the conveying air A _C and powder, provided processing apparatus 15 to the outlet side of the ejector 53, the ejector 53 is a conveying air A _C and powder processing You may make it convey toward the apparatus 15. FIG. In this case, the ejector 52 can be provided at either the entrance of the transport path 71 or the exit of the transport path 71.

  Further, the powder conveyed from the ejector 53 without being processed may be returned to the supply tank 11.

In addition, the ejector 52 and the ejector 53 are respectively replaced with the working air A _d1 or the working air A _{d2 in place of} the air jet outlet 84 or the air jet outlet 94 that ejects the working air A _d1 or the working air A _d2 that is the carrier medium. You may make it provide the slit which ejects.

  Note that the branch block 51, the ejector 52, and the ejector 53 may be integrally formed.

  The conveyance path 71 and the conveyance path 72 are not limited to a straight line shape, and may be curved and curved. Further, the transport path 71 and the transport path 72 may be formed by being surrounded by a plate-like member.

  The cross section of the conveyance path 71 and the cross section of the conveyance path 72 are not limited to a circle, but may be a rectangle or a polygon. Although the cross-sectional shape of the transport path 72 has been described as being the same as the cross-sectional shape of the transport path 71, it may be different. The cross-sectional area of the transport path 72 may be the same as or different from the cross-sectional area of the transport path 71.

In the flow rate / air pressure data, the value is corrected by multiplying the negative pressure, which is the pre-branch conveyance medium pressure, and the pressure of the working air _Ad1 , by a predetermined correction coefficient in the low pressure range and high pressure range. You may do it. For example, a correction factor of 0.7 can be multiplied in the low pressure range, and a correction factor of 1.2 can be multiplied in the high pressure range.

As described above, the branch block 51, a hollow cylindrical conveying path hollow cylindrical conveying path 71 to which the particles are conveyed together with the conveying air A _C, and a transport air A _C and the powder is transported 72 In addition, a conveyance path 72 branched from the conveyance path 71 at an angle of 15 degrees to 165 degrees with respect to the conveyance path 71 is formed.

Ejector 52 is disposed on one of the inlet or outlet of the transport path 71, when unloading the transport air A _C and the powder from the outlet of the transport path 71, through which the transport air A _C and the powder is transported from the air ejection port 84 is a hole provided in the hollow cylindrical wall, spewing transport air a _C perpendicular or an acute angle to the conveying axis of the conveyor air a _C and powder, of the conveying path 71 Transport air _AC and powder are transported coaxially with the transport direction axis.

In addition, the ejector 52 is provided at either the entrance or the exit of the transport path 71. The ejector 52 has a hollow cylindrical wall surface through which transported transport air _AC and powder are transported, and transport air _AC and air ejection port 84 is a hole for ejecting the transport air a _C in a direction perpendicular or acute angle to the conveying direction of the axis of the powder is formed.

The ejector 53 is provided at the exit of the transport path 72. When the transport air _AC and the powder are unloaded from the exit of the transport path 72, the ejector 53 is formed on a hollow cylindrical wall surface through which the transport air _AC and the powder to be transported pass. from the air ejection port 94 is a hole provided, the transport air a blown conveying air a _C perpendicular or acute angle with respect to _C and the powder transport direction of the axis of the coaxial with the axis of the conveying direction of the conveying path 72 Transport air _AC and powder in the direction.

The ejector 53 is provided at the exit of the transport path 72. The ejector 53 has a hollow cylindrical wall surface through which the transport air _AC and the powder to be transported pass in the transport direction of the transport air _AC and the powder. air ejection port 94 for ejecting conveying air a _C in a direction perpendicular or acute angle is formed with respect to the axis.

The pressure sensor 54 measures the pressure of the transport air A _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72.

When the control device 14 causes the ejector 52 or the ejector 53 to transport the powder exclusively to the ejector 52 in time and causes the ejector 52 to transport the powder, the pressure measured by the pressure sensor 54 becomes a predetermined target value. as such, changing the pressure of the transport air a _C ejected from the air ejection port 84 of the ejector 52.

  In this way, the powder can be divided without providing a mechanism for mechanically opening and closing the conveyance path for conveying the powder, and the pressure on the upstream side of the branch is set to the flow rate at which the powder is conveyed. Since it can be set to a corresponding value, the powder can be more reliably divided and conveyed at a desired flow rate while reducing clogging more easily.

  The conveyance path 72 formed in the branch block 51 can be branched from the conveyance path 71 at an angle of 90 degrees to 150 degrees with respect to the conveyance path 71. In this case, the powder can be more reliably diverted, and the powder having a desired flow rate can be more stably and reliably conveyed.

The cross-sectional shape of the transport path 72 can be the same as the cross-sectional shape of the transport path 71. Even when repeated diversion of the powder, it is possible to further reduce the turbulence of the transport air A _C in the conveyance path 72 and conveyance path 71, it is possible to prevent clogging due to powder more securely.

Controller 14, when unloading the powder from the outlet of the transport path 71, the jetting transport air A _C from the air ejecting port 84 of the ejector 52, the pressure measured by the pressure sensor 54 becomes a predetermined target value as such, by changing the pressure of the transport air a _C ejected from the air ejection port 84 of the ejector 52, when unloading the powder from the outlet of the transport path 72, the conveying air a _C from the air ejecting port 94 of the ejector 53 Erupt. In this way, the pressure on the upstream side of the branch can be set to a value corresponding to the flow rate at which the powder is transported, so that the powder can be more reliably and more easily reduced with less clogging. The powder can be divided and conveyed at a desired flow rate.

Control program computer 101 is executed, the computer 101, to carry the powder from the outlet of the transport path 71, the jetting transport air A _C from the air ejecting port 84 of the ejector 52, is measured by the pressure sensor 54 so that the pressure becomes the predetermined target value, when to change the pressure of the transport air a _C ejected from the air ejection port 84 of the ejector 52, carries out the powder from the outlet of the transport path 72, the air injection of the ejector 53 to perform processing comprising the step of ejecting conveying air a _C from the outlet 94. In this way, the pressure on the upstream side of the branch can be set to a value corresponding to the flow rate at which the powder is transported, so that the powder can be more reliably and more easily reduced with less clogging. The powder can be divided and conveyed at a desired flow rate.

Method of measuring the flow characteristics of the processing system 1, while the pressure of the transport air A _C ejected from the air ejection port 94 of the ejector 53 is constant, the pressure of the transport air A _C ejected from the air ejection port 84 of the ejector 52 is varied, the pressure of each of the transport air a _C ejected from the air ejection port 84 of the ejector 52, to measure the flow rate of the powder is unloaded from the exit of the conveying path 71, the air ejection port 84 of the ejector 52 in each of the ejected pressure conveying air a _C is, by the pressure sensor 54 measures the pressure of the transport air a _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72, the desired flow rate when the powder is unloaded from the exit of the conveying path 71, the pressure and ejector conveyor air a _C of the transport path 71 on the upstream side of the branch of the conveying path 71 and the transport path 72 Comprising the step of identifying a pressure of the transport air A _C ejected from the second air ejection port 84.

In addition, the processing system 1, a hollow cylindrical conveying path hollow cylindrical conveying path 71 to which the particles together with the conveying air A _C a gas is conveyed, and the conveying air A _C and the powder is transported 72 And a branch block 51 in which a transport path 72 branched from the transport path 71 at an angle of 15 to 165 degrees with respect to the transport path 71 is formed, and an entrance of the transport path 71 is provided. when unloading a transport air a _C and the powder from the outlet of the conveying path 71, by causing the pressure in the transport air a _C at the inlet side of the conveying path 71, in the axial direction coaxial to the conveying direction of the conveying path 71 and ejector 52 that conveys the transport air a _C and the powder, provided at the outlet of the conveying path 72, when unloading the transport air a _C and the powder from the outlet of the transport path 72, at the outlet side of the conveying path 72 by causing the pressure in the transport air a _C, the conveyance path 72 And ejector 53 for transporting the transport air A _C and powder of feeding direction coaxial with the axis direction is provided, the ejector 52 and ejector 53 conveys temporal and exclusively conveyed air A _C and the powder .

The ejector 52 is provided at the entrance of the transport path 71 and transports the transport air _AC and powder in the same direction as the transport direction axis of the transport path 71. The ejector 53 is provided at the exit of the transport path 72 and transports the transport air _AC and powder in the same direction as the transport direction axis of the transport path 72.

Control method in the processing system 1, when unloading the transport air A _C and the powder from the outlet of the transport path 71, the ejector 52, with generating a pressure in the transport air A _C at the inlet side of the conveying path 71, the ejector 53 to suppress the generation of pressure in the transport air a _C by, when unloading the transport air a _C and the powder from the outlet of the transport path 72, the ejector 53, the conveying air a _C on the outlet side of the conveying path 72 together create a pressure, comprising the step of suppressing the generation of pressure in the transport air a _C by ejector 52.

Further, the control program by the computer 101 is executed, the computer 101, when unloading the transport air A _C and the powder from the outlet of the transport path 71, the ejector 52, the conveying air A _C at the inlet side of the conveying path 71 together create a pressure, when suppressing the occurrence of pressure in the transport air a _C by ejector 53 is unloaded and a transport air a _C and the powder from the outlet of the transport path 72, the ejector 53, the exit of the conveying path 72 together create a pressure in the transport air a _C on the side to perform the processing including the step of suppressing the generation of pressure in the transport air a _C by ejector 52.

  By doing in this way, powder can be more reliably shunted while reducing clogging.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Processing system, 11 Supply tank, 12 Supply apparatus, 13 Splitting device, 14 Control apparatus, 15 Processing apparatus, 16 Recovery tank, 51 Branch block, 52 and 53 Ejector, 54 Pressure sensor, 71 and 72 Conveyance path, 73 Pressure conduit , 81 Conveyance path, 82 Working air introduction section, 83 Working air distribution section, 84 Air jetting outlet, 85 Throttle section, 91 Conveyance path, 92 Working air introduction section, 93 Working air distribution section, 94 Air ejection section, 95 Throttle section , 101 computer, 102 electropneumatic converter, 103 high voltage generator, 121 CPU, 122 ROM, 123 RAM, 128 storage, 131 removable media

Claims (9)

A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to one transport path;
The transport medium and the powder that are provided at either the entrance or the exit of the first transport path and are transported when the transport medium and the powder are unloaded from the exit of the first transport path. From the hole or slit provided in the hollow cylindrical wall surface through which the carrier passes, the carrier medium is ejected at a right angle or an acute angle with respect to the axis in the conveyance direction of the carrier medium and the powder, and the first conveyance path A first transport means for transporting the transport medium and the powder in a direction coaxial with a transport direction axis;
A hollow cylindrical shape that is provided at the outlet of the second transport path, and that transports the transport medium and the powder when the transport medium and the powder are unloaded from the outlet of the second transport path. From the hole or slit provided in the wall surface, the transport medium is ejected at a right angle or an acute angle with respect to the transport medium axis of the transport medium and the powder, and is coaxial with the transport direction axis of the second transport path. Second conveying means for conveying the conveying medium and the powder in a direction;
Pressure measuring means for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch between the first transport path and the second transport path;
When the powder is transported to one of the first transport means or the second transport means exclusively in time and the powder is transported to the first transport means, it is measured by the pressure measuring means. And a control unit that changes the pressure of the transport medium ejected from the hole or slit of the first transport unit so that the pressure to be a predetermined target value. The flow dividing device according to claim 1,
The second transport path formed in the transport path forming unit is branched from the first transport path at an angle of 90 degrees to 150 degrees with respect to the first transport path. apparatus. The flow dividing device according to claim 1,
The cross-sectional shape of the second transport path is the same as the cross-sectional shape of the first transport path. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path is formed at an angle of 15 degrees to 165 degrees with respect to one transport path; and the first transport path Provided at either the entrance or the exit of the path, a hollow cylindrical wall surface through which the transport medium and the powder to be transported pass is perpendicular to the transport medium and the axis in the transport direction of the powder, or at an acute angle The first conveying means for forming the hole or the slit for ejecting the conveying medium in the direction of forming the conveying medium, and the conveying medium and the powder, which are provided and conveyed at the outlet of the second conveying path, On the hollow cylindrical wall that passes through, the carrier medium And the second conveying means in which the hole or the slit for ejecting the conveying medium in a direction perpendicular to or perpendicular to the axis of the conveying direction of the powder is formed, the first conveying path, In a control method of a flow dividing device comprising pressure measuring means for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch with the second transport path,
When carrying out the powder from the outlet of the first conveyance path, the conveyance medium is ejected from the hole or slit of the first conveyance means, and the pressure measured by the pressure measurement means is a predetermined target value. So as to change the pressure of the transport medium ejected from the hole or slit of the first transport means,
A control method including a step of ejecting the transport medium from a hole or a slit of the second transport means when the powder is transported from an outlet of the second transport path. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path is formed at an angle of 15 degrees to 165 degrees with respect to one transport path; and the first transport path Provided at either the entrance or the exit of the path, a hollow cylindrical wall surface through which the transport medium and the powder to be transported pass is perpendicular to the transport medium and the axis in the transport direction of the powder, or at an acute angle The first conveying means for forming the hole or the slit for ejecting the conveying medium in the direction of forming the conveying medium, and the conveying medium and the powder, which are provided and conveyed at the outlet of the second conveying path, On the hollow cylindrical wall that passes through, the carrier medium And the second conveying means in which the hole or the slit for ejecting the conveying medium in a direction perpendicular to or perpendicular to the axis of the conveying direction of the powder is formed, the first conveying path, A computer for controlling a flow dividing device comprising pressure measuring means for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch with the second transport path;
When carrying out the powder from the outlet of the first conveyance path, the conveyance medium is ejected from the hole or slit of the first conveyance means, and the pressure measured by the pressure measurement means is a predetermined target value. So as to change the pressure of the transport medium ejected from the hole or slit of the first transport means,
When carrying out the said powder from the exit of the said 2nd conveyance path | route, the program which performs the process including the step of ejecting the said conveyance medium from the hole or slit of a said 2nd conveyance means. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path is formed at an angle of 15 degrees to 165 degrees with respect to one transport path; and the first transport path Provided at either the entrance or the exit of the path, a hollow cylindrical wall surface through which the transport medium and the powder to be transported pass is perpendicular to the transport medium and the axis in the transport direction of the powder, or at an acute angle The first conveying means for forming the hole or the slit for ejecting the conveying medium in the direction of forming the conveying medium, and the conveying medium and the powder, which are provided and conveyed at the outlet of the second conveying path, On the hollow cylindrical wall that passes through, the carrier medium And the second conveying means in which the hole or the slit for ejecting the conveying medium in a direction perpendicular to or perpendicular to the axis of the conveying direction of the powder is formed, the first conveying path, In a flow rate characteristic measurement method for a flow dividing device, comprising a pressure measuring means for measuring the pressure of the transport medium in the first transport path on the upstream side of the branch with the second transport path,
While keeping the pressure of the transport medium ejected from the hole or slit of the second transport means constant, the pressure of the transport medium ejected from the hole or slit of the first transport means is changed,
Measuring the flow rate of the powder carried out from the outlet of the first carrying path in each of the pressures of the carrying medium ejected from the holes or slits of the first carrying means,
In each of the pressures of the transport medium ejected from the holes or slits of the first transport means, the pressure measurement means causes the pressure upstream of the branch between the first transport path and the second transport path. Measuring the pressure of the transport medium in the first transport path;
When the powder at a desired flow rate is unloaded from the outlet of the first transfer path, the first transfer path on the upstream side of the branch between the first transfer path and the second transfer path. A flow rate characteristic measuring method including a step of specifying a pressure of the transport medium and a pressure of the transport medium ejected from a hole or a slit of the first transport means. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path at an angle of 15 degrees to 165 degrees with respect to one transport path;
Provided at the inlet of the first transport path, and when the transport medium and the powder are unloaded from the outlet of the first transport path, pressure is applied to the transport medium on the inlet side of the first transport path. A first transport means for transporting the transport medium and the powder in a direction coaxial with the transport direction axis of the first transport path;
Provided at the exit of the second transport path, and when the transport medium and the powder are unloaded from the exit of the second transport path, pressure is applied to the transport medium on the exit side of the second transport path. And a second transport means for transporting the transport medium and the powder in a direction coaxial with the transport direction axis of the second transport path,
The first and second conveying means is a diversion device that conveys the conveying medium and the powder exclusively in terms of time. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path is formed at an angle of 15 degrees to 165 degrees with respect to one transport path; and the first transport path Provided at the entrance of the path, provided at the exit of the second transport path, and a first transport means for transporting the transport medium and the powder in the same direction as the transport direction axis of the first transport path In a flow dividing method of a flow dividing device comprising: a second conveying unit that conveys the conveying medium and the powder in a direction coaxial with an axis in a conveying direction of the second conveying path,
When unloading the conveyance medium and the powder from the outlet of the first conveyance path, the first conveyance unit causes pressure on the conveyance medium on the inlet side of the first conveyance path, and Suppressing the generation of pressure on the transport medium by the second transport means;
When unloading the conveyance medium and the powder from the outlet of the second conveyance path, the second conveyance means causes pressure on the conveyance medium on the outlet side of the second conveyance path, and A diversion method including a step of suppressing generation of pressure on the transport medium by the first transport means. A hollow cylindrical first transport path through which powder is transported together with a transport medium that is a gas, and a hollow cylindrical second transport path through which the transport medium and the powder are transported, A transport path forming unit in which a second transport path branched from the first transport path is formed at an angle of 15 degrees to 165 degrees with respect to one transport path; and the first transport path Provided at the entrance of the path, provided at the exit of the second transport path, and a first transport means for transporting the transport medium and the powder in the same direction as the transport direction axis of the first transport path A computer for controlling a flow dividing device comprising: a second transport unit configured to transport the transport medium and the powder in a direction coaxial with a transport direction axis of the second transport path;
When unloading the conveyance medium and the powder from the outlet of the first conveyance path, the first conveyance unit causes pressure on the conveyance medium on the inlet side of the first conveyance path, and Suppressing the generation of pressure on the transport medium by the second transport means;
When unloading the conveyance medium and the powder from the outlet of the second conveyance path, the second conveyance means causes pressure on the conveyance medium on the outlet side of the second conveyance path, and The program which performs the process including the step which suppresses generation | occurrence | production of the pressure to the said conveyance medium by the said 1st conveyance means.

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