JP4894056B1 - Negative pressure device - Google Patents

Abstract

Disclosed is a negative pressure device that can be manufactured in a relatively small size and can continuously perform negative pressure processing of an object.
SOLUTION: A negative pressure application unit 12 for performing negative pressure processing on an object F inside, a negative pressure forming device 14 for forming a negative pressure in the negative pressure application unit 12, and an object F in the negative pressure application unit 12. A conveying device 16 that conveys, a loading device 18 that throws the object F into the negative pressure acting unit 12 from the external EX while holding negative pressure, and an inside of the negative pressure acting unit 12 while holding negative pressure And a discharge device 20 for discharging the object F from the external EX to the external EX. The charging device 18 and the discharging device 20 include a liquid blocking mode in which the outside and the negative pressure operating unit are blocked via the liquid L, an external side opening mode in which the external side is opened and the negative pressure operating unit side is closed, Switching means 38 for switching to a negative pressure side opening mode in which the side is closed and the negative pressure operating unit side is opened, and the object F is inserted into the negative pressure operating unit from the outside while switching these modes, or in the negative pressure operating unit To the outside.
[Selection] Figure 1

Description

  The present invention relates to a negative pressure acting device used for negative pressure processing of an object.

  Technologies using negative pressure and vacuum lower than atmospheric pressure are used in a wide range of fields such as food, pharmaceuticals, metal materials, electronic components and semiconductors, and manufacturing, processing, storage, and drying of chemical products. Conventionally, as a device for forming a vacuum or a negative pressure, a vacuum pump that forcibly exhausts air in a sealed container to be processed to lower the pressure, a suction device disclosed in Patent Document 1, and the like are known. . The suction device of Patent Document 1 is filled with water in a sealed vacuum tank 1a installed at a high place, and pipes are connected to a water storage tank 2 from a lower drainage port thereof. Negative pressure due to the difference in water level. Then, as shown in FIG. 4 of the accompanying drawings of Patent Document 1, the vacuum tank 1a is connected to a target negative pressure treatment device such as a sewage treatment facility 12, and the negative pressure of the vacuum tank 1a is used for the treatment of sewage. It was. The numbers are those described in Patent Document 1.

  In addition, the present applicants proposed a negative pressure device capable of continuously processing a negative pressure of an object in Patent Document 2. The negative pressure operating device of Patent Document 2 is composed of a liquid storage tank in which the upper side is opened and the working liquid is stored inside, and a hollow tube formed in a vertically long shape with the upper end closed and the lower end opened. A plurality of objects, a negative pressure forming pipe that is immersed in the working liquid in the liquid storage tank and forms a negative pressure space in the upper part by balancing the working liquid in the pipe and the atmospheric pressure with respect to the working liquid in the liquid storage tank; A continuous conveyance mechanism that sequentially and continuously conveys objects and moves them up and down from the lower end opening of the negative pressure forming pipe to the negative pressure space formed in the upper part of the negative pressure forming pipe while moving back and forth. It was.

JP-A-2005-344698 Japanese Patent No. 4640527

  Conventionally, when a target object is subjected to negative pressure processing, a vacuum pump or a suction device is connected to the negative pressure processing device for processing purpose, and the target object is placed in a sealed container connected to the vacuum pump or the like. An object is put in, and the container is hermetically sealed and evacuated through a vacuum pump or the like to form a negative pressure so that the object is subjected to a desired negative pressure. The batch processing such as taking out was performed. Therefore, when many objects are subjected to negative pressure treatment, repeated operations such as putting in and out of the sealed container, forming negative pressure, returning to atmospheric pressure, etc. are complicated and greatly reduce negative pressure. There was a problem that it took a long time and the efficiency was inferior. Moreover, although the suction device of patent document 1 itself is comprised large sized, since it is necessary to provide the sealed container etc. for making an object act on a negative pressure separately, the utilization efficiency of installation space was also bad. On the other hand, the negative pressure device of Patent Document 2 is excellent in that the object can be processed continuously by the continuous conveyance mechanism. However, in Patent Document 2, the object is moved back and forth up and down to a negative pressure space formed in the upper part of the pipe through the object in a high negative pressure forming pipe of about 10 m. And let it pass. Therefore, when installing the negative pressure device, it is necessary to make it higher in the height direction, so there is a risk that the entire device will be enlarged and the installation location may be restricted, and the time from input to discharge of the target object Was long.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a negative pressure device that can be manufactured in a relatively small size and can perform negative pressure processing of an object continuously or intermittently. There is.

In order to solve the above-mentioned problem, the present invention is a negative pressure operation unit that performs negative pressure processing on the object F in the interior 22, and provides an inlet 24 for the object F that communicates with the outside in part, and in the other part. A negative pressure acting part 12 provided with a discharge port 26 for the object F communicating with the outside, a negative pressure forming device 14 for exhausting the gas in the negative pressure acting part 12 to form a predetermined negative pressure, and a negative pressure action A transport device 16 that is installed in the section 12 and transports the object F from the input port 24 side toward the discharge port 26 side, and the external EX and the negative pressure operation unit 12 are connected to the input port 24 of the negative pressure operation unit 12. , A charging device 18 for loading the object F into the negative pressure acting part 12 from the external EX in a state where the negative pressure acting part 12 is held, and a discharge port 26 of the negative pressure acting part 12 In the state where the negative pressure of the negative pressure acting part 12 is held while being provided across the external EX and the inside of the negative pressure acting part 12 A discharge device 20 for discharging the object F to the outside EX from pressure acting portion 12. Particularly, with the, respectively the dosing device 18 and the discharge device 20, facing the portion and the negative pressure acting portion 12 facing the outside EX of the cylindrical wall A cylindrical case 42 provided with openings 48 and 49 through which an object passes in part, a rotating shaft 44 pivotally supported at the center of the cylindrical case 42, and a rotating shaft protruding from the rotating shaft 44 toward the inner wall of the case A revolving door 46 having a plurality of blades 50 rotating around 44, a closed space in which the plurality of blades 50 close the inside of the cylindrical case from the outside and the negative pressure acting side, and a space facing the outside A revolving door 46 that is divided and partitioned into a space that faces the negative pressure acting part, and the revolving door 46 is rotated to switch between the spaces partitioned by the revolving door of the tubular case, and inside the tubular case Filled closed space with liquid L Thereby comprises a switching means 38 to be formed inside the cylindrical casing the liquid blocking manner blocked the outside and negative pressure acting portion via the liquid L and, further, the discharge device 20, the closure of the cylindrical case Prior to switching the space partitioned by the cylindrical case from the closed space to the space facing the negative pressure operating portion by rotating the revolving door 46, the air in the closed space is exhausted to the external EX. It has a liquid filling mechanism 52 that fills the closed space with liquid and replaces the air and liquid in the closed space, and the charging device 18 receives the object in the space facing the outside and rotates the rotary door 46. Then, after switching to a closed space and filling the closed space with a liquid to form a liquid blocking mode, the rotary door is further rotated to switch to a space facing the negative pressure acting portion, and the object F is placed on the negative pressure acting portion 12. Filling with liquid Thus , the object F is introduced into the negative pressure acting part while the negative pressure acting part 12 is maintained at a negative pressure, and the discharge device 20 fills the closed space of the cylindrical case with a liquid to form a liquid blocking mode. Later, the revolving door 46 is rotated to switch the closed space to a space facing the negative pressure acting portion, the liquid is discharged to the negative pressure acting portion, the object is received from the negative pressure acting portion 12, and the revolving door 46 is further rotated. By switching to the space facing the outside, the negative pressure acting device 10 is characterized in that the object F is discharged to the external EX while the negative pressure of the negative pressure acting portion 12 is maintained.

The liquid filling mechanism 52 includes a filling means for filling the closed space of the cylindrical case from a predetermined liquid source, an exhaust pipe 58 having one end connected to the closed space and the other end opened to the outside. And an exhaust valve 60 provided in the exhaust pipe 58 .

  Further, in the negative pressure acting part 12, a liquid storage part 28 is formed which stores the liquid L at a predetermined height and receives the liquid L discharged from the charging device 18 or the discharging device 20 into the negative pressure acting part 12. The closed space partitioned by the plurality of blades 50 inside the case of the charging device 18 or the discharging device 20 is connected to the liquid storage portion 28 of the negative pressure acting portion 12, and the liquid storage portion 28 of the negative pressure acting portion is connected. A filling path 54 for filling the liquid in the closed space of the case and a filling pump 62 that is interposed in the filling path 54 and pumps the liquid may be provided.

Further, the present invention is a negative pressure acting portion for subjecting the object F to a negative pressure inside the interior 22 and is provided with an inlet 24 for the object F communicating with the outside in part and the object communicating with the outside in the other part. Installed in the negative pressure operating section 12, the negative pressure operating section 12 provided with the F discharge port 26, the negative pressure forming device 14 that exhausts the gas in the negative pressure operating section 12 to form a predetermined negative pressure, and The transport device 16 that transports the object F from the input port 24 side toward the discharge port 26 side, and the input port 24 of the negative pressure acting unit 12 is provided across the external EX and the negative pressure acting unit 12; An input device 18 that inputs the object F from the external EX into the negative pressure operating unit 12 while holding the negative pressure of the negative pressure operating unit 12, and an external EX and negative pressure at the discharge port 26 of the negative pressure operating unit 12. It is provided across the inside of the action part 12 and is the negative pressure action part 12 in a state where the negative pressure of the negative pressure action part 12 is maintained? A discharge device 20 that discharges the object F to the external EX, and the charging device 18 and the discharge device 20 each have a liquid blocking mode in which the outside and the negative pressure acting unit are blocked via the liquid L, and an external side. There is provided switching means 38 for switching between an external opening mode in which the negative pressure acting part side is opened and the negative pressure acting part side is closed, and a negative pressure side opening manner in which the external side is closed and the negative pressure acting part side is opened. Accepts the object F from the external EX in the external opening mode and sets the liquid blocking mode, and then switches to the negative pressure mode to maintain the negative pressure in the negative pressure operating unit 12. 12, the object F is put in and the discharge device 20 receives the object F from the negative pressure operation unit 12 as the negative pressure side opening mode after switching to the liquid blocking mode, and switches to the external side opening mode to switch the negative pressure. In a state where the negative pressure of the action part 12 is held It is intended to discharge the objects F to Part EX, further, each of the feeding device 18 and the discharge device 20, disposed in the negative pressure acting portion and the other end with placing the one end to the outside, passing through the object F in the interior A hollow case 74 to be opened, a negative pressure side opening / closing door 76 which is installed on the negative pressure acting part side of the case 74 and opens / closes the negative pressure acting part side, and is installed on the outer side of the case 74 to open / close the outer side The switching means 38 fills the case 74 with the liquid L, and opens and closes the negative pressure side opening / closing door 76 and the external side opening / closing door 78 at a predetermined timing. The negative pressure acting device 10 is characterized by switching between a blocking mode, an external side opening mode, and a negative pressure side opening mode.

  In addition, the liquid L is stored at a predetermined height at which the negative pressure side opening / closing door 76 is submerged in the liquid inside the negative pressure acting portion 12, and the charging device 18 and the discharging device 20 are respectively connected to the outside of the case 74. And a storage tank 80 for storing the liquid L so that the external opening / closing door 78 sinks. The switching means 38 has a negative pressure opening / closing door 76. The negative pressure side opening / closing door 76 and the external side opening / closing door 78 are opened and closed at a predetermined timing while maintaining the state in which the external opening / closing door 78 is submerged in the liquid. It is good also as switching a compression side release mode.

Further, in the case 74 of the input device 18 and / or the discharge device 20 , a transfer device 82 for transferring the object F and transferring it to the transfer device 16 in the negative pressure operating unit 12 may be installed.

  According to the negative pressure acting device of the present invention, the negative pressure acting part for subjecting the object to a negative pressure inside is provided with an inlet for the object communicating with the outside in part and communicating with the outside in the other part. A negative pressure acting part provided with a discharge port for the object, a negative pressure forming device for exhausting the gas in the negative pressure acting part to form a predetermined negative pressure, installed in the negative pressure acting part, and discharged from the inlet side A conveying device that conveys an object toward the outlet side, and an inlet of the negative pressure acting part provided across the outside and the inside of the negative pressure acting part, and from the outside while holding the negative pressure of the negative pressure acting part A charging device that puts an object into the negative pressure acting part, and a negative pressure with the negative pressure acting part held at the discharge port of the negative pressure acting part across the outside and the negative pressure acting part A discharge device for discharging the object from the inside of the action portion to the outside, and the charging device and the discharge device are respectively connected to the outside through the liquid. Liquid blocking mode in which the pressure acting part is shut off, external side opening mode in which the external side is opened and the negative pressure working unit side is closed, and negative pressure side opening mode in which the external side is closed and the negative pressure acting part side is opened And a switching device for switching to the negative pressure acting part by switching to the negative pressure side opening mode after accepting an object from the outside in the external side opening mode and switching to the liquid blocking mode. The object is put into the negative pressure acting part in a state where the pressure is held, and after the discharge device is in the liquid blocking mode, it accepts the object from the negative pressure acting unit as the negative pressure side opening mode and switches to the external side opening mode. Since the object is discharged to the outside while holding the negative pressure of the negative pressure acting part, the liquid is used to block the outside where there is a pressure difference and the negative pressure space of the negative pressure acting part, Throw the object while maintaining the negative pressure of the negative pressure action part well. , It can be discharged. As a result, the object can be subjected to negative pressure processing continuously or intermittently, and a large amount of objects can be efficiently subjected to negative pressure processing in a short time.

Further, each of the feeding device ejection apparatus, journalled a tubular case opening subject to a portion facing the portion and the negative pressure acting portion facing the outside of the cylindrical peripheral wall passes is provided, at the center of the cylindrical case And a plurality of blades projecting from the rotation shaft toward the inner wall of the case and rotating around the rotation shaft. The plurality of blades are disposed inside the case, on the outside side and on the negative pressure acting part side. Includes a revolving door that divides and partitions into a closed space that closes, a space that faces the outside, and a space that faces the negative pressure acting portion, and the switching means fills the closed space with liquid and rotates the revolving door. Since it is configured to switch between the liquid blocking mode, the external side opening mode, and the negative pressure side opening mode by rotating around the axis, the three modes can be switched smoothly while rotating the revolving door, and the target can be efficiently Input or discharge materials That. Furthermore, the input device and the discharge device can be specifically realized at a low cost with a simple configuration.

  Further, a liquid storage part is formed in the negative pressure acting part to store the liquid at a predetermined height and receive the liquid discharged from the charging apparatus or the discharging apparatus into the negative pressure acting part. A closed path partitioned by a plurality of blades inside the case and a liquid storage part of the negative pressure acting part, and a filling path for filling the liquid in the liquid storage part of the negative pressure acting part into the closed space of the case And a filling pump that is interposed in the filling path and pumps the liquid, so that the liquid used for holding the negative pressure is circulated again from the negative pressure acting part to the charging device or the discharging device. By utilizing for holding negative pressure, it is possible to easily manufacture a structure filled with liquid, and it is possible to keep the liquid in the negative pressure acting portion substantially constant and hold the negative pressure space. In addition, for example, when a negative pressure is applied by the negative pressure operating portion, an impregnation liquid to be impregnated into an object or a liquid for forming a negative pressure can be used as a cleaning liquid for cleaning.

  In addition, each of the charging device and the discharging device has one end arranged on the external side and the other end arranged on the negative pressure acting part side, and a hollow case that allows the object to pass inside, and the negative pressure acting part side of the case A negative pressure side opening / closing door that is installed and opens and closes the negative pressure acting part side; and an external side opening / closing door that is installed outside the case and opens and closes the external side, and the switching means has liquid inside the case. The two open / close doors are configured to switch the liquid blocking mode, the external side open mode, and the negative pressure side open mode by opening and closing the negative pressure side open / close door and the external side open / close door at a predetermined timing. The three modes can be smoothly switched while opening and closing and the object can be efficiently charged or discharged. Furthermore, the input device and the discharge device can be specifically realized at a low cost with a simple configuration.

  In addition, the liquid is stored at a predetermined height at which the negative pressure side opening / closing door is submerged in the liquid inside the negative pressure acting portion, and the input device and the discharge device are connected to the outside of the case, respectively, And a storage tank for storing liquid so that the external opening / closing door sinks, and the switching means is in a state where the negative pressure opening / closing door and the external opening / closing door are immersed in the liquid. Since the liquid blocking mode, the external side opening mode, and the negative pressure side opening mode are switched by opening and closing the negative pressure side opening / closing door and the external side opening / closing door at a predetermined timing while holding the The liquid filling process and the like are unnecessary, and the three modes can be smoothly switched only by opening / closing control of the negative pressure side opening / closing door and the external side opening / closing door. Therefore, the number of members of the input device and the discharge device can be reduced, and it can be manufactured at a low cost with a simple structure.

  In addition, the feeding device and / or the discharging device are configured to include a transfer device that conveys the object and transfers it to and from the conveying device in the negative pressure operation unit, so that the object can be smoothly maintained while maintaining the negative pressure. An object can be thrown into or discharged from the negative pressure acting part.

It is a schematic explanatory drawing of the negative pressure action apparatus which concerns on the 1st Embodiment of this invention. It is a flowchart at the time of throwing a target object into a negative pressure action part via the throwing-in apparatus of the negative pressure action apparatus of FIG. It is a flowchart at the time of discharging | emitting an object from a negative pressure action part via the discharge device of the negative pressure action apparatus of FIG. It is a schematic explanatory drawing of the negative pressure action apparatus which concerns on the 2nd Embodiment of this invention.

  Embodiments of the negative pressure device of the present invention will be described below with reference to the accompanying drawings. The negative pressure operation device according to the present invention is a negative pressure processing device that forms and holds a negative pressure in the negative pressure operation portion and efficiently performs negative pressure processing on an object such as a food, a medicine, or a machine part. 1 to 3 show a first embodiment of the negative pressure acting device of the present invention. As shown in FIG. 1, in this embodiment, the negative pressure acting device 10 includes a negative pressure acting unit 12 that performs a negative pressure process on the object F, a negative pressure forming device 14 of the negative pressure acting unit 12, and a negative pressure acting. A conveying device 16 installed in the section 12, a device 18 for feeding the object F to the negative pressure acting section 12, and a device 20 for discharging the object F from the negative pressure acting section 12 are provided. In the present embodiment, the object F to be subjected to negative pressure by the negative pressure operating device 10 will be described, for example, in the case where a solid or solid object such as food is applied.

  The negative pressure action unit 12 is a negative pressure action means that performs a negative pressure process on the object F in the interior 22. As shown in FIG. 1, in the present embodiment, the negative pressure acting portion 12 is formed of, for example, a pressure resistant material and has a hollow hollow body or hollow having a hollow interior 22 having a size capable of accommodating a plurality of objects F. It consists of a cylindrical body. The negative pressure acting part 12 is provided with an insertion port 24 for an object F communicating with the external EX on one end side in the horizontal direction (upper left side in FIG. 1), and on the other end side (upper right side in FIG. 1). A discharge port 26 is provided in communication with the communication port. A charging device 18 is provided at the charging port 24, and a discharging device 20 is provided at the discharging port 26. The insertion port 24 and the discharge port 26 are provided, for example, on opposite side walls of the negative pressure acting portion 12 so as to face each other, and the height position of the insertion port 24 is set to a position higher than a later-described transfer device 16. In addition, the height position of the discharge port 26 is set to be substantially the same as the height position of the transport device 16. A negative pressure forming device 14 that makes the inside 22 a negative pressure is connected to the negative pressure acting portion 12, and an inlet 24 and an outlet 26 communicating with the external EX are hermetically sealed by an inlet 18 and an outlet 20, respectively. The negative pressure formed in the inside 22 can be held by holding. In the negative pressure acting part 12, the liquid L is stored at a predetermined height which is an intermediate position in the vertical direction of the interior 22, and a liquid storage part 28 is formed. Therefore, the inside 22 of the negative pressure action part 12 becomes a negative pressure space whose pressure is lower than the atmospheric pressure on the upper side, and constitutes a storage part 28 in which the liquid L is stored on the lower side. The liquid L is made of water, for example, and is used as a liquid means used for holding the negative pressure of the charging device 18 and the discharging device 20 as described later. The reservoir 28 receives the liquid L that flows out from the charging device 18 and the discharging device 20 into the interior 22. A supply pipe 29a for supplying a liquid to the inside 22 as necessary is connected to the negative pressure operating unit 12 through an on-off valve. Further, a drainage pipe 29b for discharging the liquid from the inside 22 as necessary is connected to the negative pressure acting part 12 through an on-off valve. The liquid L is not limited to water and may be variously changed according to the type of the object F or the like. For example, when the object F is a food, the liquid L is used as a seasoning liquid or a colored liquid, or when the object is an electric / electronic component, the liquid is used as an insulating agent or a cleaning liquid, or when the object is a machine part. The liquid may be a lubricating oil, or the liquid may be a preservative when the object is wood, and may be selected in any combination depending on the other processing purposes.

The negative pressure forming device 14 is a negative pressure forming means that forms a predetermined negative pressure by forcibly exhausting the gas inside the negative pressure acting portion 12. The negative pressure forming device 14 includes, for example, a vacuum pump 30. The vacuum pump 30 has, for example, an inlet port of the pump connected to the other end of a connection pipe 32 that is connected to one end of the top wall of the negative pressure acting unit 12 and communicated internally. An open / close valve 34 is interposed at an intermediate position between the negative pressure acting portion 12 of the connection pipe 32 and the vacuum pump 30. When the vacuum pump 30 is driven with the open / close valve 34 open, the gas in the negative pressure acting portion 22 is sucked from the intake port by the pumping action of the vacuum pump, and a predetermined negative pressure (for example, atmospheric pressure) is given to the inside 22. Low pressure close to vacuum). When a predetermined vacuum is formed, when the vacuum pump 30 is stopped and the on-off valve 34 is closed, the negative pressure inside the negative pressure operating portion 22 is maintained. Note that the vacuum pump may be driven at all times or intermittently during the negative pressure processing by the negative pressure application unit 12. The vacuum pump 30 may be a variety of other vacuum pumps such as a rotary pump, an oil diffusion pump, an oscillating piston pump, a turbo molecular pump, an ion pump, or a combination of a plurality of vacuum pumps. Further, the negative pressure forming device 14 is not limited to a vacuum pump, and any device may be used as long as the negative pressure acting unit 12 can form a vacuum.

  As shown in FIG. 1, the transport device 16 is a transport unit that is installed in the interior 22 of the negative pressure operating unit 12 and transports the object F from the input port 24 toward the discharge port 26 in the interior 22. In the present embodiment, the transport device 16 is composed of, for example, a belt conveyor configured by winding an endless belt around two pulleys. The conveying device 16 is disposed, for example, with one end of the belt conveyor being close to the input port 24 and the other end being close to the discharge port 26. The transport device 16 can, for example, subject the object F to negative pressure processing for a predetermined time while carrying a plurality of objects F on a belt and transporting the object F in a substantially straight line continuously or intermittently in the lateral direction. The negative pressure processing time for the object F may be set by adjusting the conveyance speed of the conveyance device 16.

  In addition, the transport device 16 is, for example, a position (solid line in FIG. 1) that rises to a negative pressure space position above the liquid level and does not come into contact with the liquid in the inside 22 of the negative pressure operation unit 12. It may be provided so as to be displaced up and down at a position where it descends in the part 28 and immerses in the liquid (broken line in FIG. 1). The transport device 16 is supported by a vertical drive mechanism 36 such as a cylinder, for example, and is guided to move up and down in a stable state via a guide or the like (not shown). The transport device 16 and the vertical drive mechanism 36 are controlled by being electrically connected to the control unit 66, for example. For example, if the conveying device 16 is set at a rising position in the negative pressure space and does not allow the object F to come into contact with the liquid, the object F is in a state where there is little or almost no liquid adhering to the object F. It is easy to handle and is advantageous for drying treatment and food thawing treatment. Further, for example, if the transport device 16 is set at a lowered position in the liquid and transports the object F in contact with the liquid L for a predetermined time, the permeation process of the seasoning liquid to the food, It is advantageous for impregnation treatment and cleaning treatment of semiconductor parts. In addition, the conveying apparatus 16 may be fixedly installed in the position where the object F does not always touch the liquid in the negative pressure operation unit 12, or conversely, the object is always immersed in the liquid. Alternatively, it may be fixedly installed at a certain position, or may be fixedly installed at a position where a part of the transport device 16 does not touch the liquid and the other part is immersed in the liquid.

  The charging device 18 is provided in the charging port 24 of the negative pressure acting part 12 across the external EX and the inside 22 of the negative pressure acting part 12, and maintains the negative pressure of the negative pressure acting part 12. This is a charging means with a negative pressure holding function for charging the unprocessed object F from the external EX into the negative pressure acting part. On the other hand, the discharge device 20 is provided at the discharge port 26 of the negative pressure acting portion 12 across the external EX and the inside 22 of the negative pressure acting portion 12 to hold the negative pressure of the negative pressure acting portion 12. This is a discharge means with a negative pressure holding function for discharging the processed object F in the state from the negative pressure acting part to the external EX. By providing the input device 18 and the discharge device 20 with the negative pressure holding function, continuous or intermittent negative pressure processing of a plurality of objects F is realized in a state in which the negative pressure of the negative pressure operation unit 12 is held. is doing.

  In the present embodiment, the input device 18 and the discharge device 20 are provided with substantially the same configuration. The input device 18 and the discharge device 20 have, for example, a hollow interior in which the object F can be taken in and out. In the hollow interior, the external side communicating with the external EX and the negative pressure acting part side serving as the other end communicating with the negative pressure acting part 12 can be opened or closed. The charging device 18 and the discharging device 20 are each a liquid blocking mode in which the external side and the negative pressure acting part side are both closed and the hollow is filled with liquid, thereby blocking the outside and the negative pressure acting part via the liquid L. (First mode), an external side open mode (second mode) in which the external side is opened and the negative pressure acting part side is closed, and a negative pressure side open mode in which the external side is closed and the negative pressure working unit side is opened. (Third aspect) and switching means 38 for switching to. The switching means 38 constitutes a negative pressure holding mechanism 40 that holds the negative pressure of the negative pressure acting portion using the liquid by switching the above three modes.

In the present embodiment, as shown in FIG. 1, for example, the input device 18 and the discharge device 20 have a hollow cylindrical case 42 with a part facing the external EX and the other part facing the negative pressure acting part 12. And a revolving door 46 that divides the inside of the cylindrical case 42 into a plurality of spaces and rotates around a rotation shaft 44 that is pivotally supported at the center of the cylindrical case. Cylindrical case 42, for example, the opening cross section a hollow cylindrical case made of a circular object F to a portion facing the portion and the negative pressure acting portion 12 facing the outer side EX of the cylindrical peripheral wall passes 48, 49 Is provided. The rotary door 46 includes, for example, a rotary shaft 44 supported in the horizontal direction and four blades 50 protruding from the rotary shaft 44 in the radial direction, that is, toward the inner wall of the cylindrical case and arranged at intervals of 90 degrees around the rotary shaft. Have. The blade 50, for example, divides the hollow internal space of the cylindrical case 42 into four fan-shaped spaces of the same size, upper right, lower right, upper left, and lower left, and is in contact with the inner wall of the cylindrical case at the blade tip side. A packing that slides to maintain watertightness and airtightness is attached. In the charging device 18, the upper right space and the lower left space are a closed space that is hermetically sealed with the external EX and the negative pressure acting portion 12, the upper left space is a space that faces the external EX, and the lower right space faces the negative pressure acting portion 12. It is a space. Each time the revolving door 46 rotates 90 degrees clockwise around the rotation axis 44, the positions of these four spaces are switched. On the other hand, in the discharge device 20, the upper right space and the lower left space are a closed space in which the outer side and the negative pressure acting portion are hermetically sealed, the lower right space is a space facing the external EX, and the upper left space is the negative pressure acting portion 12. It is a space to face. Each time the revolving door 46 rotates 90 degrees counterclockwise about the rotation shaft 44, the positions of these four spaces are switched.

  Further, the upper right closed space of the cylindrical case 42 of the charging device 18 and the discharging device 20 is filled with the liquid L using the liquid filling mechanism 52. That is, before switching from the upper right closed space to the space facing the negative pressure acting portion 12 by the rotation of the rotary door 46, the atmosphere in the closed space is replaced with liquid, and the external EX and the negative pressure acting portion are utilized using this liquid. The negative pressure of the negative pressure acting part 12 is held by shutting off 12. Further, in the liquid blocking mode, it can be said that the liquid blocking mode can function as a kind of buffer means for allowing the object F to pass between the external EX having a pressure difference and the negative pressure acting unit 12. The liquid filling mechanism 52 includes, for example, a filling path 54 including a supply pipe that fills the upper right closed space of the cylindrical case 42 with a liquid for holding a negative pressure from a predetermined liquid source, and a liquid supply provided in the filling path 54. A valve 56; an exhaust pipe 58 having one end connected to a closed space and the other end opened to the outside; an exhaust valve 60 provided in the exhaust pipe 58; and a filling pump 62 provided in the filling path 54 for pumping liquid. And including. As the liquid source, for example, the liquid L stored in the storage unit 28 of the negative pressure application unit 12 is used. Therefore, one end of the filling path 54 is connected to the storage part 28 of the negative pressure acting part 12, and the other end is connected to the upper right closed space of the cylindrical case 42. A water level sensor 70 is attached to the exhaust pipe 58 to sense that the liquid is full in the enclosed space. In FIG. 1, an external transport device 64 that receives and transports the object F discharged from the discharge device 20 to the external EX is provided. The external transport device 64 is formed of, for example, a belt conveyor formed by winding an endless belt around two pulleys.

  When the filling pump 62 is driven with both the liquid supply valve 56 and the exhaust valve 60 opened, the liquid L in the storage portion 28 of the negative pressure acting portion 12 passes through the filling path 54 and enters the upper right closed space of the cylindrical case 42. Filled. Then, when the liquid is filled in the closed space, the water level sensor 70 senses it, stops the filling pump 62, and closes the liquid supply valve 56 and the exhaust valve 60, thereby constituting a liquid blocking mode in the closed space. it can. When the revolving door 46 is rotated 90 degrees in a state where the liquid blocking mode is formed and the space is communicated with the negative pressure acting part 12, the liquid flows out into the negative pressure acting part 12, but the atmosphere enters. Therefore, the negative pressure of the negative pressure acting unit 12 is maintained. Therefore, the cylindrical case 42, the revolving door 46, and the liquid filling mechanism 52 constitute the switching unit 38 and the negative pressure holding mechanism 40. And in the throwing device 18, in the cylindrical case 42 divided into four, the upper left space is the external side open mode, the upper right closed space is the liquid blocking mode, the lower right space is the negative pressure side open mode, In the discharge device 20, in the cylindrical case 42 divided into four, the upper left space is a negative pressure side opening mode, the upper right closed space is a liquid blocking mode, and the lower right space is an external side opening mode. By switching the liquid blocking mode, the external side opening mode, and the negative pressure side opening mode in accordance with the rotation of the rotary door 46 in cooperation with the liquid filling mechanism 52, the object is maintained while maintaining the negative pressure of the negative pressure acting portion. F can be charged and discharged. That is, the switching means 38 forms a plurality of (at least three) spaces in the cylindrical case 42 and assigns a liquid blocking mode, an external opening mode, and a negative pressure side opening mode to each space, and these modes are assigned to the space. It is designed to switch every time. Further, the liquid L for holding negative pressure passes through the filling path 54 from the storage portion 28 of the negative pressure acting portion 12, fills the cylindrical case 42 of the charging device 18 or the discharging device 20, and flows out to the negative pressure acting portion 12. Thus, the liquid L is circulated back to the reservoir 28 so that the liquid L can be held in the negative pressure acting part 12 without being filled.

  The liquid supply source may be a liquid storage tank installed outside the negative pressure operating unit. In addition, for example, instead of the liquid filling mechanism as described above, a storage tank that stores the liquid L and has an opening through which the object F can be taken in and out is communicated with a portion facing the external EX of the cylindrical case 42. It may be provided so that the space is always filled with the liquid from the liquid storage tank. Further, the number of blades 50 of the rotary door 46 may be arbitrary as long as it is three or more, and may be a configuration that divides the inside of the cylindrical case 42 into at least three spaces. The revolving door 46 is not limited to a mode that rotates only in one direction, but may be provided so as to rotate in both forward and reverse directions to switch between a liquid blocking mode, an external side opening mode, and a negative pressure side opening mode.

  In the present embodiment, for example, the transfer device 16, the input device 18, and the discharge device 20 are automatically or semi-automatically controlled by the control unit 66 for input, transfer, discharge, and the like. The control unit 66 is electrically connected to, for example, the rotary door 46, the supply valve 54, the exhaust valve 60, the filling pump 62, and the water level sensor 70 of the charging device 18 and the discharging device 20, and according to the control signal, The rotation control of the rotary door 46 and the liquid filling control are performed. In addition, the control unit 66 is electrically connected to the transfer device 16 and the cylinder of the vertical drive mechanism 36, and performs transfer, stop control, and vertical movement control of the object in accordance with a control signal. Note that the exhaust valve, the liquid supply valve, and the like are not limited to being automatically controlled by the control unit, and may be manually operated. The controller 66 is electrically connected to, for example, a vacuum sensor 68 for reducing the negative pressure of the negative pressure operating unit 12, and monitors whether the negative pressure is within a predetermined range.

  Next, the operation of the negative pressure device 10 according to the present embodiment, that is, the negative pressure processing method will be described with reference to FIGS. First, the liquid L is stored up to an intermediate position inside the negative pressure acting part 12, and the gas inside the negative pressure acting part 12 is exhausted by the negative pressure forming device 14 to form and hold a negative pressure space. When throwing the object F into the negative pressure action part 12 from the throwing device 18, as shown in FIG. 2, in the throwing device 18, the upper left of the cylindrical case 42 of the external side open | release aspect used as an atmospheric pressure state is shown. The object F is received in the space facing the outside (S10). When the revolving door 46 is rotated 90 degrees, the space in which the object F is placed moves to the closed space on the upper right side of the cylindrical case 42. With the liquid supply valve 56 and the exhaust valve 60 of the charging device 18 opened (S12), the filling pump 62 is driven to fill the liquid in the negative pressure acting portion into the upper right closed space (S14). When the upper right closed space is filled with liquid (S16), the filling pump 62 is stopped (S18), the liquid supply valve 56 and the exhaust valve 60 are closed, and the upper right closed space acts on the outside and negative pressure. A liquid blocking mode in which the outside and the negative pressure acting part are blocked through the liquid filled inside while closing both the parts side (S20). Thereafter, when the rotary door 46 is rotated 90 degrees from the state where the liquid blocking mode is formed, the space filled with the liquid becomes a space communicating with the negative pressure acting unit 12 at the lower right, and is switched to the negative pressure side opening mode. Simultaneously with flowing out into the action part 12, the object F is moved to the conveying device 16 of the negative pressure action part 12 (S22). Thereby, the object can be thrown into the negative pressure acting part 12 from the external EX while holding the negative pressure of the negative pressure acting part 12. Thereafter, when the revolving door 46 is rotated by 90 degrees, the empty right lower space passes through the lower left closed space in a negative pressure state (S24), and when the revolving door 46 is further rotated 90 degrees, it makes one round. Return to the upper left space. By repeating such a process, the object F is thrown into the negative pressure acting part 12 from the external EX while maintaining the negative pressure of the negative pressure acting part 12.

  The object F thrown into the negative pressure operation unit 12 is subjected to negative pressure processing for a predetermined time while being conveyed toward the discharge port 26 via the conveying device 16. If necessary, the conveying device 16 is moved up and down to switch between a state not in contact with the liquid and a state in contact with the working liquid, thereby bringing the object into contact with the liquid for a predetermined short time. Also good.

When the processed object F that has been subjected to the negative pressure action process in the negative pressure action part 12 is discharged to the external side EX, as shown in FIG. With the liquid supply valve 56 and the exhaust valve 60 of the discharge device 20 open (S30), the filling pump 62 is driven to fill the closed space in the upper right of the cylindrical case 42 with liquid (S32). When the upper right closed space is filled with liquid (S34), the filling pump 62 is stopped (S36), the liquid supply valve 56 and the exhaust valve 60 of the discharge device 20 are closed (S38), and the upper right closed space is closed. Is a liquid blocking mode in which the outside and the negative pressure acting part are shut off via the liquid filled inside while closing both the outer side and the negative pressure acting part side. When the revolving door 46 is rotated 90 degrees counterclockwise, the space filled with the liquid moves to the upper left, communicates with the negative pressure acting part 12 and is switched to the negative pressure side opening mode, and the liquid flows out into the negative pressure acting part. However, the negative pressure is maintained without the atmosphere entering the negative pressure acting portion (S40). When the revolving door 46 receives the processed object F from the transfer device 16 (S42), the revolving door 46 is rotated 90 degrees to move to the lower left closed space under negative pressure (S44), and the revolving door 82 is further moved. If it rotates 90 degree | times, the space in which the target object F entered will be connected to the exterior side, will be switched to an external open mode, and the target object F will be discharged | emitted outside (S46). By repeating such steps, the object is discharged from the negative pressure acting part while maintaining the negative pressure of the negative pressure acting part 12. Note that when processing a large amount of the object F continuously or intermittently, the timing of charging by the charging device 18 and the timing of discharging by the discharging device 20 may be synchronized. Further, when the object F is subjected to the negative pressure action treatment inside the negative pressure action part 12, air or gas in the object is degassed or moisture is evaporated, and the pressure in the inside 20 gradually increases. The degree of vacuum decreases. In that case, it is preferable to form a predetermined negative pressure in the negative pressure acting portion again by the negative pressure generating device 14. Alternatively, the negative pressure generating device 14 may be constantly driven to exhaust gas or the like from the object.

  As described above, a plurality of objects F are continuously or intermittently subjected to negative pressure inside the negative pressure acting part 12, and the object F is externally held in a state where the negative pressure of the negative pressure acting part 12 is maintained. The negative pressure application unit 12 can be charged into the EX and discharged from the negative pressure application unit 12 to the external EX. A large amount of objects can be efficiently and smoothly subjected to negative pressure processing in a short time. In addition, although this embodiment demonstrated in the aspect which carries out the negative pressure process of solid substances, such as a foodstuff, it is not restricted to it, For example, a foodstuff, a pharmaceutical, a chemical product, a metal material, an electronic / electric part, a semiconductor, a machine part, a wooden product It can also be applied when negative pressure is applied in manufacturing, processing, storage, drying, liquid impregnation treatment, and the like. Further, the negative pressure treatment apparatus can be applied to, for example, washing of machines, precision instruments, or textile products.

  Next, a negative pressure acting device 10-2 according to a second embodiment of the present invention will be described with reference to FIG. The same configurations and the same members as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 4, the present embodiment also includes the negative pressure application unit 12, the negative pressure forming device 14, the transport device 16, the input device 18, and the discharge device 20, as in the above embodiment. In this embodiment, the insertion port 24 and the discharge port 26 of the negative pressure action part 12 are each provided in the opposing side wall at the same height. Inside the negative pressure acting part 12, the liquid is stored up to an intermediate position that is somewhat high, and the inlet 24 and the outlet 26 are immersed in the liquid. The conveying device 16 is disposed in the negative pressure operating unit 12 so as to be immersed in the liquid and to fix the height position. Therefore, the transport device 16 transports the object F in contact with the liquid in the negative pressure operation unit 12.

  The charging device 18 and the discharging device 20 have configurations different from those of the above embodiment. For example, a case 74 having a hollow interior 72 through which the object F can be passed, and a negative There is a negative pressure side opening / closing door 76 that opens and closes the pressure acting part side end, and an external side opening / closing door 78 that opens and closes the external side end of the case 72. That is, it has a double door type structure in which the doors 76 and 78 are provided at the entrance and the exit of the case 74. Further, the charging device 18 and the discharging device 20 have a liquid storage tank 80 that is disposed on the external EX, connected to the outer side end of the case 74, and in which liquid is stored.

  The case 74 is formed of, for example, a hollow box-shaped or cylindrical case that is provided at the input port 24 or the discharge port 26 of the negative pressure acting unit 12 across the external EX and the negative pressure space. One end of the case 74 is disposed on the external EX, and the other end is disposed in the negative pressure acting part 12, and is connected to the side wall of the negative pressure acting part 12. The case 74 has a pair of side surfaces facing each other in the lateral direction, has an opening communicating with the external EX at one end, and an opening communicating with the inside of the negative pressure space at the other end. An external opening / closing door 78 is installed at the external opening of one end of the case 74, and a negative pressure opening / closing door 76 is installed at the negative pressure opening of the other end. The hollow interior 72 of the case 74 is formed, for example, in a relatively small space where one or several objects F can be put. The hollow interior 72 of the case 74 is filled with the same liquid (for example, water) as that of the negative pressure operation unit 12.

  The negative pressure side opening / closing door 76 is provided in a negative pressure side opening on the negative pressure acting part 12 side of the case 74. When closed, the hollow inner 72 and the negative pressure acting part 12 are hermetically sealed, and when opened, the hollow inner 72 is opened. And the negative pressure acting part 12 are communicated. The external opening / closing door 78 is provided in an external opening which is the external EX side of the case 74, and when closed, the hollow interior 72 and the external EX are hermetically sealed, and when open, the hollow internal 72 and the external EX are communicated. Let The negative pressure side opening / closing door 76 and the external side opening / closing door 78 are provided, for example, so as to close and open the entire opening of the case 74, and include a sliding shutter that slides in the vertical direction or the horizontal direction to open and close, and is not shown. It is guided by a guide or the like and is opened and closed by an arbitrary drive mechanism such as a cylinder or a motor.

  The liquid storage tank 80 has, for example, an opening 81 through which the object F can be put in and out, and stores the same liquid (for example, water) as the liquid in the negative pressure application unit 12 and the case 74 inside. It consists of a bottomed tank. The liquid storage tank 80 has one end portion of the case 74 passing through the lower side of the side wall of the tank body, and the liquid storage tank 80 so that the external opening / closing door 78 of the external opening of the case 74 faces the inside of the tank body. And the case 74 are connected. The liquid is stored in the liquid storage tank 80 to such a height that the external opening / closing door 78 is immersed in the liquid.

  As described above, in the charging device 18 and the discharging device 20, the internal space of the case 74 is filled with the liquid, and the negative pressure side opening / closing door 76 is provided so as to be immersed in the liquid in the negative pressure acting portion 12. The side opening / closing door 78 is provided so as to be immersed in the liquid in the liquid storage tank 80. Accordingly, by closing both the negative pressure side opening / closing door 76 and the external side opening / closing door 78, the external EX and the external EX are connected via the liquid L by filling the hollow interior with the liquid while closing both the external side and the negative pressure acting part side. A liquid blocking mode in which the negative pressure acting unit 12 is blocked is configured. Further, the negative side opening / closing door 76 is closed and the external side opening / closing door 78 is opened to open the external side opening of the case 74, thereby switching to the external side opening mode. At this time, atmospheric pressure acts on the liquid in the case 74 from the opening 81 of the liquid storage tank 80, but the negative pressure of the negative pressure acting portion 12 is maintained by closing the negative pressure side opening / closing door 76. . On the other hand, the external side opening / closing door 78 is closed, the negative pressure side opening / closing door 76 is opened, and the negative pressure side opening of the case 74 is opened, thereby switching to the negative pressure side opening mode. At this time, since the external opening / closing door 78 is closed, the liquid in the case 74 is not subjected to atmospheric pressure from the opening 81 of the liquid storage tank 80, so that the negative pressure of the negative pressure acting portion is maintained. Is done. In this way, by filling the hollow inside of the case 74 with the liquid before communicating with the negative pressure acting part 12, the external EX and the negative pressure acting part 12 are blocked by using the liquid, thereby negatively acting. The negative pressure of the pressure application unit 12 is maintained. That is, in this embodiment, the switching means 38 and the negative pressure holding mechanism 40 are configured by the case 74 filled with liquid, the negative pressure side opening / closing door 76, the external side opening / closing door 78, and the liquid storage tank 80. Then, while maintaining the state where the negative pressure side opening / closing door 76 and the external side opening / closing door 78 are submerged in the liquid, the negative pressure side opening / closing door 76 and the external side opening / closing door 78 are opened and closed at a predetermined timing, whereby the liquid blocking mode is achieved. The external side opening mode and the negative pressure side opening mode are switched. Further, the switching means 38 has a double shutter structure that switches between a liquid blocking mode, an external opening mode, and a negative pressure side opening mode using two open / close doors in one hollow space in the case 74.

As shown in FIG. 4, a transfer device 82 is provided in the hollow interior 72 of the case 74. The transfer device 82 is, for example, a belt conveyor that is installed at the same height as the transport device 16 and is configured by winding an endless belt around two pulleys. In the transfer device 82 of the charging device 18, the object F is conveyed in the horizontal direction in the hollow interior 72, and when the negative pressure side opening / closing door 76 is opened, the transfer device 82 transfers to the transfer device 16 in the negative pressure application unit 12. Deliver the object F and put it in. Similarly, in the transfer device 82 of the discharge device 20, when the negative pressure side opening / closing door 76 is opened, the processed object F is received from the transfer device 16 in the negative pressure operation unit 12 to the transfer device 82 and the negative pressure operation unit is received. 12, the object F is moved laterally in the hollow interior 72. Further, an external transfer device 84 made up of a belt conveyor or the like is also provided in the liquid storage tank 80. The external transfer device 84 is disposed at substantially the same height as the transfer device 82 in the case 74. The external transfer device 84 delivers the object F to and from the transfer device 84 when the external door 78 is opened. Note that the transfer device 82 and the external transfer device 84 may be provided in only one of the input device 18 and the discharge device 20. The configurations of the transfer device 82 and the external transfer device 84 are not limited to a belt conveyor, and may be any other configuration such as a configuration in which an object is moved by a rail, a rolling element, a piston, or the like. The input device 18 and the discharge device 20 may have a structure such as a shooter that slides down an object.

  Next, an operation of the negative pressure acting device 10-2 according to the present embodiment, that is, a negative pressure processing method will be described. First, the liquid L is stored up to an intermediate position so that the negative pressure side opening / closing door 76 of the charging device 18 and the discharge device 20 is submerged in the liquid inside the negative pressure acting portion 12, and the negative pressure forming device 14 performs the negative pressure action. The gas inside the part 12 is exhausted to form and hold a negative pressure space. At the same time, the liquid is stored in the liquid storage tank 80 at a height such that the external opening / closing door 78 is immersed in the liquid, and the case 74 is also filled with the liquid. When the object F is thrown into the negative pressure acting part 12 from the throwing device 18, the throwing device 18 throws the object F into the tank from the opening 81 of the liquid storage tank 80 and puts it on the external transfer device 84. Put it on. The external opening / closing door 78 is opened to switch to the external opening mode, and the object F is received from the external transfer device 84 to the transfer device 82 in the case. Then, the external door 78 is closed to switch to the liquid blocking mode. Thereafter, the negative pressure side opening / closing door 76 is opened to switch to the negative pressure side opening mode, the object F is transferred from the transfer device 82 to the transfer device 16 in the negative pressure acting unit 12, and the negative pressure side opening / closing door 76 is closed. The object F can be thrown into the negative pressure action part 12 while holding the negative pressure of the negative pressure action part 12 while repeating such a process.

  The object F thrown into the negative pressure operation unit 12 is subjected to negative pressure processing in the liquid while being conveyed toward the discharge port 26 via the conveying device 16. During conveyance, the object F is subjected to negative pressure processing while being in contact with the liquid. In the case of discharging the processed object F that has been subjected to the negative pressure action process in the negative pressure action part 12 from the negative pressure action part 12 to the external side EX, the discharge device 20 opens the negative pressure side action door 76 to make negative. The object F is received from the transfer device 16 to the transfer device 82 in the case 74 by switching to the pressure side release mode. Then, the negative pressure side action door 76 is closed to switch to the liquid blocking mode. Thereafter, the external opening / closing door 78 is opened to switch to the external opening mode, and the object F is transferred from the transfer device 82 to the external transfer device 84. The external door 78 is closed and the object F is taken out from the opening on the upper surface of the liquid storage tank 80. While repeating such steps, the object F can be discharged to the external EX while maintaining the negative pressure of the negative pressure acting portion 12. In the present embodiment, similarly to the above-described embodiment, the negative pressure is applied to the plurality of objects F continuously or intermittently, and the object F is negatively applied from the external EX while the negative pressure of the negative pressure action unit 12 is maintained. As a result of being able to be charged into the action part 12 and discharged from the negative pressure action part 12 to the external EX, a large amount of objects can be efficiently and smoothly subjected to negative pressure processing in a short time.

  The negative pressure application unit 12 may store the liquid at such a height that the liquid does not contact the negative pressure side opening / closing door 76. Moreover, you may arrange | position the conveying apparatus 16 so that it may not contact a liquid. In this case, the negative pressure application unit 12 can perform negative pressure processing without bringing the object F into contact with the liquid. In the present embodiment, the liquid storage tank 80 is provided in the external EX and the case 74 is always filled with the liquid. However, the present invention is not limited to this configuration. For example, in the configuration of FIG. 4, the external opening / closing door 78 is exposed to the atmosphere without providing the liquid storage tank 80, and the liquid is put into and out of the case 74 and the negative pressure side opening / closing door 76 and the external opening / closing door 78 are opened / closed. May be switched to an atmospheric pressure state, a liquid full state, and a negative pressure state by performing the above at a predetermined timing. For example, when the target F is put into the charging device 18 from the external side EX and when the target F is taken out from the discharge device 20 to the external side, a liquid is not poured into the case, but the external side is opened. When the object F is charged from the charging device 18 to the negative pressure operating unit 12 and when the target F is discharged from the negative pressure operating unit 12 to the discharging device 20, the liquid is put into the case via an arbitrary liquid filling mechanism. May be switched to the negative pressure side opening mode after the liquid is filled.

  The negative pressure operating device of the present invention described above is not limited to the configuration of only the above-described embodiment, and may be arbitrarily modified without departing from the essence of the present invention described in the claims. Also good.

  The negative pressure device of the present invention can be used for manufacturing, processing, storing, washing, drying processing, etc. of foods, pharmaceuticals, chemical products, metal materials, electronic / electric parts, semiconductors, mechanical parts, wooden products, textile products, etc. .

DESCRIPTION OF SYMBOLS 10 Negative pressure action apparatus 12 Negative pressure action part 14 Negative pressure formation apparatus 16 Conveyance apparatus 18 Input device 20 Discharge apparatus 22 Inside of negative pressure action part 24 Input port 26 Discharge port 28 Storage part 38 Switching means 42 Cylindrical case 44 Rotating shaft 46 Revolving door 48, 49 Open 50 Blade 56 Filling path 62 Filling pump 72 Hollow interior 74 Case 76 Negative pressure side opening / closing door 78 External side opening / closing door 80 Liquid storage tank 82 Transfer device F Object EX External L Liquid

Claims (6)

This is a negative pressure action part that negatively treats the object inside, and a negative pressure action that is provided with an inlet for the object that communicates with the outside in part and an outlet for the object that communicates with the outside at the other part. And
A negative pressure forming device for exhausting the gas in the negative pressure acting part to form a predetermined negative pressure;
A conveying device that is installed in the negative pressure acting section and conveys an object from the inlet side toward the outlet side;
A charging device that is provided across the outside and the inside of the negative pressure acting part at the charging port of the negative pressure acting part, and throws the object into the negative pressure acting part from the outside while holding the negative pressure of the negative pressure acting part,
A discharge device that is provided at the discharge port of the negative pressure acting part across the outside and the inside of the negative pressure acting part, and discharges the object from the inside of the negative pressure acting part to the outside while holding the negative pressure of the negative pressure acting part, With
Each of the charging device and the discharging device has a cylindrical case provided with an opening through which an object passes in a part facing the outside of the cylindrical peripheral wall and a part facing the negative pressure acting part,
A rotary door having a rotating shaft pivotally supported at the center of the cylindrical case and a plurality of blades projecting from the rotating shaft toward the inner wall of the case and rotating around the rotating shaft. A revolving door that divides and partitions into a closed space that is closed from the external side and the negative pressure acting part side, a space that faces the outside, and a space that faces the negative pressure acting part,
The revolving door is rotated to switch between the spaces separated by the revolving door of the cylindrical case, and the closed space inside the cylindrical case is filled with liquid so that the outside and the negative pressure acting part are connected via the liquid. Switching means for forming a liquid blocking mode in which the liquid is blocked inside the cylindrical case ,
Further, the discharge device is connected to the closed space of the cylindrical case and rotates the rotary door to switch the partitioned space of the cylindrical case from the closed space to the space facing the negative pressure acting portion. A liquid filling mechanism for replacing the air and liquid in the closed space by filling the closed space with liquid while exhausting the air of
The charging device accepts an object in a space facing the outside , rotates the revolving door to switch to the closed space, fills the closed space with liquid and sets the liquid blocking mode, and then rotates the revolving door to turn it negative. By switching to the space facing the pressure acting part and throwing the object into the negative pressure acting part together with the liquid, the object is thrown into the negative pressure acting part while maintaining the negative pressure of the negative pressure acting part,
The discharge device fills the closed space of the cylindrical case with a liquid and forms a liquid blocking mode, and then rotates the revolving door to switch the closed space to a space facing the negative pressure acting part and discharges the liquid to the negative pressure acting part. And receiving the object from the negative pressure acting part and further rotating the revolving door to switch to a space facing the outside, thereby discharging the object to the outside while maintaining the negative pressure of the negative pressure acting part. A negative pressure acting device characterized. The liquid filling mechanism includes a filling means for filling a closed space of the cylindrical case from a predetermined liquid source, an exhaust pipe having one end connected to the closed space and the other end opened to the outside, and an exhaust pipe The negative pressure action device according to claim 1 , further comprising an exhaust valve provided . In the negative pressure acting part, a liquid storage part is formed which stores liquid at a predetermined height and receives the liquid discharged from the charging device or the discharging device into the negative pressure acting part,
The closed space partitioned by a plurality of blades inside the case of the charging device or discharge device is connected to the liquid storage part of the negative pressure acting part, and the liquid in the liquid storage part of the negative pressure acting part is filled into the closed space of the case A filling path for
Negative pressure device of claim 1 or 2, wherein the filling pump for pumping liquid is interposed in the filling path, is provided. This is a negative pressure action part that negatively treats the object inside, and a negative pressure action that is provided with an inlet for the object that communicates with the outside in part and an outlet for the object that communicates with the outside at the other part. And
A negative pressure forming device for exhausting the gas in the negative pressure acting part to form a predetermined negative pressure;
A conveying device that is installed in the negative pressure acting section and conveys an object from the inlet side toward the outlet side;
A charging device that is provided across the outside and the inside of the negative pressure acting part at the charging port of the negative pressure acting part, and throws the object into the negative pressure acting part from the outside while holding the negative pressure of the negative pressure acting part,
A discharge device that is provided at the discharge port of the negative pressure acting part across the outside and the inside of the negative pressure acting part, and discharges the object from the inside of the negative pressure acting part to the outside while holding the negative pressure of the negative pressure acting part, With
Each of the charging device and the discharging device has a liquid blocking mode in which the outside and the negative pressure acting part are blocked through the liquid, an external side opening mode in which the external side is opened and the negative pressure acting side is closed, and the external side is It is provided with a switching means for switching to a negative pressure side opening mode in which the negative pressure acting part side is closed and opened,
The charging device accepts an object from the outside in the external opening mode and sets the liquid blocking mode, and then switches to the negative pressure opening mode to maintain the negative pressure in the negative pressure operating unit in the negative pressure operating unit. Insert the object,
The discharge device accepts an object from the negative pressure acting portion as a negative pressure side opening mode after the liquid blocking mode is set, and switches to the external side opening mode to maintain the negative pressure of the negative pressure acting portion outside. To discharge the object,
Furthermore, each of the charging device and the discharging device is arranged at one end on the outside side and at the other end on the negative pressure acting part side, and a hollow case for passing the object inside,
A negative pressure side opening / closing door that is installed on the negative pressure action portion side of the case and opens and closes the negative pressure action portion side;
An external door that is installed on the outside of the case and opens and closes the external side;
The switching means fills the case with liquid and switches between the liquid blocking mode, the external side opening mode, and the negative pressure side opening mode by opening and closing the negative pressure side opening / closing door and the external side opening / closing door at a predetermined timing. A negative pressure device characterized by the above. The liquid is stored at a predetermined height at which the negative pressure side opening / closing door is submerged in the liquid inside the negative pressure acting part,
Each of the charging device and the discharging device is connected to the outside of the case, provided with an opening through which an object can be taken in and out, and has a liquid storage tank for storing liquid so that the external opening / closing door sinks,
The switching means opens and closes the negative pressure side opening / closing door and the external side opening / closing door at a predetermined timing while maintaining the state where the negative pressure side opening / closing door and the external side opening / closing door are submerged in the liquid. 5. The negative pressure operating device according to claim 4, wherein the side open mode and the negative pressure side open mode are switched. 6. The negative pressure operation according to claim 4 or 5, wherein a transfer device is provided in the case of the charging device and / or the discharge device to transfer the object and transfer it to and from the transfer device in the negative pressure operation section. apparatus.

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