JP2012217954A - Shaking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shaking device capable of efficiently shaking an object to be shaken having a comparatively large load (an object to be shaken having heavy loading), stably maintaining a shaking property over a long period of time, and easily achieving cost reduction with a simple structure.SOLUTION: The shaking device 1 includes: a machine stand 7; a top plate 8 provided on the machine stand and on which the object to be shaken is placed; a drive unit for shaking mounted on the machine stand and moving the top plate with a circular moving locus; and a movable support 50 provided below with balls 53 rolling on a top surface of a receiving member 43 provided on the machine stand, the upper end thereof being attached to the top plate, and enabled to move integrally with the top plate.

Description

  In the present invention, for example, the container is moved and swung so as to draw a circular movement path in order to stir and / or degas the liquid in a container such as a so-called pail can, a funnel can, and a drum can. The present invention also relates to a rocking device that can be suitably used for rocking a rocking object that is relatively heavy.

  At the laboratory level, a small oscillating device (so-called shaker) that oscillates the beaker for stirring the liquid in the beaker is known. However, this small-sized oscillating device is not applicable to stirring and defoaming of a relatively large amount of liquid of several liters or more, such as stirring and defoaming of liquid crystal in a liquid crystal display production line.

As a method of stirring a liquid of several liters to several tens of liters in a factory, for example, there is a method in which a screw placed in the container containing the liquid is rotated by an electric motor or the like and shaken. . However, this method has the following disadvantages (a) and (b).
(A) The screw needs to be raised and lowered when the container is transported after completion of stirring. In particular, when carrying out a container and carrying out a container after stirring repeatedly and sequentially performing stirring operations for a plurality of containers, it is necessary to raise and lower the screw every time the container is replaced. Further, it is necessary to support the screw at an appropriate height with respect to the container each time stirring is performed.
(B) Since an appropriate screw is required according to the container size, the viscosity of the liquid, etc., there are cases where it is not possible to easily cope with the change of the container. In addition, when the amount of liquid is small and the liquid level is low, a case where stirring cannot be performed occurs.
In addition, when the screw is used to form a vortex for defoaming the liquid in the container, the inconveniences (a) and (b) are the same as in the case of stirring. However, vortex formation using a screw has a problem that it is difficult to increase the defoaming efficiency because conditions such as the screw rotation speed are severe because it is necessary to prevent bubbles from being involved in the liquid due to the rotation of the screw.

Other than the above-described method using a screw, for example, a plurality of devices (hereinafter also referred to as linear motion devices) configured to reciprocate a slide unit provided on a straight guide rail so as to be movable in the longitudinal direction by a drive mechanism (hereinafter also referred to as linear motion devices) For example, a method using an oscillating device having a container mounting base on an oscillating mechanism assembled in a cross-beam shape using four) is also being studied.
As the linear motion device, for example, there are a number of balls interposed between the slide unit and the guide rail, and the ball that rolls with the movement of the slide unit is provided in the slide unit. The thing of the structure which returns and circulates between a slide unit and a guide rail via (for example, patent document 1) is used.
The oscillating device converts the reciprocating motion of the slide units of the plurality of linear motion devices into the rotational motion of the container platform, and places it on the container platform by drive control of each linear motion device of the oscillation mechanism section. The configured container is configured to swing together with the container mount. This oscillating device rotates the entire liquid in the container placed on the container platform and agitates it by giving the container platform a rotational movement that moves on a predetermined circumference under the control of the oscillating mechanism. Alternatively, vortex formation for defoaming can be performed.

JP 05-126148 A

By the way, in the case of liquid materials used industrially, such as liquid crystal, it is required to perform stirring and defoaming of a liquid amount of several liters to several tens of liters by forming a vortex in the liquid in the container. There is.
The vortex formation of the liquid in the container by the oscillating device using the above-described linear motion device is performed by giving the container mounting table a rotational motion that moves on a virtual circumference having a diameter of about several millimeters.

  However, the conventional oscillating device is configured to convert the reciprocating motion of the slide unit of each linear motion device into a rotational motion, and when the vortex is formed in the liquid in the container as described above, each linear motion device The reciprocating range of the slide unit is about several mm. For this reason, the ball interposed between the slide unit and the rail repeatedly reciprocates in a narrow rolling range and does not circulate. As a result, there is a problem that seizure occurs early and the device is locked.

As a measure against the seizure, supply of grease for lubrication to the ball movement path of the linear motion device can be mentioned. As a linear motion device, a device provided with a lubricant supply means such as a grease nipple for supplying lubricating grease to the moving path of the ball is widely provided. However, the linear motion device generally has a structure in which the lubricating grease supplied to a part of the moving path of the ball is distributed over the entire moving path of the ball by circulation of the ball as the slide unit moves. For this reason, in the situation where the ball reciprocates repeatedly in a narrow rolling range as described above, grease cannot be supplied to the entire ball movement path by circulation of the ball, and oil leakage occurs in a part of the ball movement path. The fact is that it is difficult to prevent seizure because it is easy.
Further, the conventional rocking device has a problem that the structure is complicated and the cost increases because a plurality of expensive linear motion devices are used.

  The present invention has been made in view of the above-described problems, and a swinging object having a relatively large load (such as a swinging object having a heavy load) such as a container containing a liquid of several liters to several tens of liters. It is an object of the present invention to provide a rocking device that can perform rocking efficiently and that can stably maintain rocking performance over a long period of time, and that can be easily realized with a simple structure and low cost.

The present invention provides the following configuration in order to solve the above-described problems.
The first aspect of the present invention is a machine table, a mounting table provided on the machine table on which a swing object is mounted, and a swinging table provided on the machine table for moving the mounting table in a circular movement locus. A driving unit, and a movable support body having a ball that rolls on the upper surface of a receiving member provided on the machine base at a lower portion and an upper end portion attached to the mounting table and movable together with the mounting table; An oscillating device is provided.
According to a second aspect of the present invention, the movable support is a plate-like member having a thickness smaller than the outer diameter of the ball at the lower end of the support whose upper end is fixed to the mounting table. A plate-like retainer having a plurality of ball holes formed therein for rotatably accommodating the ball; and an upper receiving plate that is vertically fixed to the support and disposed above the retainer is placed on the ball. The rocking device according to the first aspect of the present invention is provided.
According to a third aspect of the present invention, the retainer has a ring plate shape and is extrapolated to the lower end portion of the column so as to be movable in a direction perpendicular to the axis of the column. Providing equipment.
According to a fourth aspect of the present invention, in the case having the receiving member at the bottom and attached to the machine base, the upper receiving plate of the movable support and a lower portion from the upper receiving plate are arranged on the upper surface of the receiving member. The auxiliary support unit that protrudes upward from the case through the window portion opened in the upper plate of the case, the case supporting, There is provided a rocking device according to the second or third invention, characterized by having a nipple for injecting lubricating grease from the outside to the inside.
According to a fifth aspect of the present invention, there is provided the swing device according to the third or fourth aspect, wherein the case is a lubricant storage container capable of storing lubricating grease therein.
According to a sixth aspect of the present invention, the swing drive unit is provided on the lower side of the mounting table and moves the mounting table along a circular movement locus. The swing drive unit includes a rotation drive source, An upper end portion of a shaft body that is erected parallel and eccentric to the rotational axis on a rotating member that is rotationally driven with a rotational axis in the vertical direction by a rotational driving force generated by a rotational driving source is provided on the mounting table. A plurality of rotating units capable of transmitting the rotational driving force of the rotational driving source from the shaft body to the mounting table, wherein the rotational axes of the rotating members are parallel to each other and the rotational axis And the shaft bodies are arranged to be rotatable about the axis of the shaft body with respect to at least one of the mounting table and the rotating member, and all the shafts Body is Providing swing apparatus of a fifth one of the invention, characterized in that which is driven to rotate together by a rotational driving force of said rotary driving source while maintaining the relative positional relationship of the household.

According to the oscillating device of the present invention, as the mounting table is rotated by the oscillating drive unit so as to draw a circular movement locus, the movable support is also rotated so as to draw a circular movement locus. During the rotational movement of the mounting table, the ball of the movable support rolls continuously on the receiving member provided on the machine base, and the contact portion of the ball on the receiving member changes, which causes local seizure. Heating (high temperature locally due to contact friction) hardly occurs. As a result, this oscillating device is unlikely to have a problem that the operation is locked due to seizure like the conventional oscillating device, and the oscillating performance can be stably maintained over a long period of time.
In addition, this swinging device can stably support the mounting table by a movable support that is movable with respect to the machine base by rolling the ball on the receiving member. In addition, the number of movable supports installed can be appropriately set according to the size of the mounting table in order to stably support the mounting table. For this reason, this oscillating device stably and efficiently oscillates a oscillating object with a relatively large load (heavy oscillating object) such as a container containing a liquid of several liters to several tens of liters. Can be done well.
In addition, this oscillating device has a simple structure and can easily realize cost reduction compared to a conventional oscillating device using a plurality of conventional linear motion devices.

It is a perspective view which shows the rocking | swiveling device of one Embodiment of this invention from upper direction. It is a top view of the rocking device of FIG. It is a side view of the rocking device of FIG. It is sectional drawing which shows the drive unit for rocking | fluctuation in the rocking | fluctuation apparatus of FIG. It is sectional drawing of the auxiliary | assistant support unit in the rocking | fluctuation apparatus of FIG. It is a figure which shows the internal structure of the auxiliary | assistant support unit in the rocking | fluctuation apparatus of FIG. 1, Comprising: (a) is a longitudinal cross-sectional view, (b) is a plane sectional view. It is a model figure explaining operation | movement of the rocking | fluctuation apparatus of FIG. It is sectional drawing which shows the auxiliary | assistant support unit of another aspect. It is a front view which shows an example of the control part of the rocking device of one Embodiment of this invention. It is a side view which shows an example of the use condition of the rocking | fluctuation apparatus of FIG. FIG. 2 is an example of a use state of the swing device of FIG. 1, and is an overall view showing a state in which a container containing liquid and connected to a vacuum device via a flexible pipe is placed on a placement table (top plate). is there. FIG. 2 is an example of a usage state of the rocking device of FIG. 1, and shows an overall state in which a container that is connected to a liquid introduction pipe and a liquid discharge pipe and does not have an openable / closable lid is placed on a placement table (top plate). FIG.

Hereinafter, a swing device according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1 to FIG. 5, FIG. 6B, and FIG. 8 to FIG.
As shown in FIG. 1, the rocking device 1 includes a machine base 7, a top plate 8 provided on the machine base 7, and provided on the machine base 7. And a plurality of (three in the illustrated example) auxiliary support units 3 that are provided on the machine base 7 and support the top plate 8.

  The top plate 8 in the illustrated example is formed in a disc shape. The top plate 8 functions as a mounting table on which the swing object is placed. As shown in FIG. 10, a container 9 such as a drum can or a pail can is placed on the top plate 8 as a swing target object via a disc-like cover plate 10 provided on the top plate 8. The Use of the disk-shaped top plate 8 and the cover plate 10 is suitable for placing the container 9 having a round bottom.

  The cover plate 10 is placed on the support protrusions 8a provided at a plurality of locations on the top plate 8 so that the cover plate 10 is above the protrusion on the top plate 8 such as the head 24a of the screw 24. The flat mounting surface 10a for mounting a rocking target object on the top plate 8 is formed. When there is no protrusion such as the head 24 a of the screw 24 on the top plate 8, or when the object to be swung is shaped to avoid contact with the protrusion on the top plate 8, When the protruding object is used for fixing the swing target object to the top plate 8, the use of the cover plate 10 is omitted and the swing target object is directly placed on the top plate 8. Is also possible.

  The top plate 8 and the cover plate 10 are not limited to disk-shaped ones, and various shapes can be appropriately selected and used according to the shape of the swinging object. As the top plate 8 or the cover plate 10, for example, a rectangular plate shape, a hexagonal plate shape, or the like can be adopted.

  The oscillating device 1 moves the top plate 7 along a circular movement locus by the oscillating drive unit 2 while the container 9 containing a liquid is placed on the top plate 8, for example. The liquid can be swung to agitate or deaerate air from the liquid.

As shown in FIGS. 1 and 10, the machine base 7 is configured such that a base plate 7 a is supported on a plate-like base base 5 in parallel with the upper surface of the base base 5 via a plurality of posts 6. The machine base 7 has a plurality of legs (not shown) for supporting the base table 5 above the installation floor on which the rocking device 1 is installed.
In this oscillating device 1, the base plate 7 a is horizontally placed by horizontally installing the base pedestal 5 of the machine base 7 on the installation floor, and the oscillating drive unit 2 and the auxiliary support unit 3 allow the base plate 7 a to be placed above the machine base 7. The top plate 8 supported in parallel with the base plate 7a is also horizontal.

  As shown in FIG. 4, the oscillating drive unit 2 is provided rotatably as a rotation drive source with a motor 11 (for example, an electric motor) attached to the machine base 7 and a vertical axis of rotation on the machine base 7. A plurality of (two in the illustrated example) rotating units 2A and 2B, which are erected on the rotating member K in parallel and eccentric to the rotation axis thereof, are rotated by the rotational driving force of the motor 11. It is comprised.

  The swing drive unit 2 in the illustrated example is a pulley 20 (hereinafter also referred to as a driving pulley) fixed to one of the two rotating units 2A and 2B (reference numeral 2A rotating unit; hereinafter also referred to as a driving side rotating unit). And an endless driving force transmission belt 32 wound around a pulley 28 (hereinafter also referred to as a driven pulley) fixed to the other rotary unit 2B (hereinafter also referred to as a driven-side rotary unit). Yes. The swing drive unit 2 transmits the rotational driving force of the driving side rotational unit 2A that is rotationally driven by the rotational driving force applied from the motor 11 to the driven side rotational unit 2B via the driving force transmission belt 32. A plurality of rotating units can be driven to rotate by one motor 11.

  As shown in FIG. 4, the motor 11 has a flange portion 11 a, and the flange portion 11 a is fixed to a motor support bar 16 attached to the machine base 7 so as to hang down from the machine base 7. It is arranged below. The drive shaft 12 of the motor 11 protrudes above the motor 11 and penetrates the base base 5 and the base plate 7a of the machine base 7 up and down. The outer periphery of the portion of the drive shaft 12 protruding above the motor 11 is rotatably supported by a bearing 17.

  As shown in FIG. 4, the rotation member K (indicated by reference numeral 18 in the figure) of the driving side rotation unit 2A is specifically fixed to the tip (upper end) of the drive shaft 12 of the motor 11, and the A disk-shaped member (hereinafter also referred to as a driving-side rotating plate) provided along a base plate 7a of the machine base 7. When the drive shaft 12 of the motor 11 is rotationally driven, the driving side rotating plate 18 rotates about the axis 12c with the axis 12c of the drive shaft 12 as a rotation axis.

  Specifically, the drive-side rotary unit 2A of the swing drive unit 2 in the illustrated example has a ring-shaped drive pulley 20 fixed on the drive-side rotary plate 18 and is housed inside the drive pulley 20. The shaft body J (indicated by reference numeral 13 in the figure, hereinafter also referred to as a first moving shaft) is inserted inside a cylindrical bearing 22 (hereinafter also referred to as a first bearing), and the driving side rotating plate 18 is inserted. It has a configuration that stands on top.

  The first moving shaft 13 is supported coaxially on the axis of the ring-shaped driving pulley 20 so as to be rotatable about the axis via the first bearing 22 having a lower end inserted therein. The driving pulley 20 and the first bearing 22 are mounted on the driving side rotating plate 18 with their axes parallel and eccentric to the rotating axis of the driving side rotating plate 18 (the axis 12c of the drive shaft 12). . The first moving shaft 13 is erected in a state where its axis 13c is parallel and eccentric to the rotation axis of the driving side rotating plate 18 (axis 12c of the driving shaft 12), and above the bearing 22 and the driving pulley 20. Is protruding.

As shown in FIG. 4, the driving pulley 20 is fixed (screwed) to the driving-side rotating plate 18 with screws 21.
The ring-shaped bearing 22 is inserted inside the driving pulley 20 so as to be coaxial with the driving pulley 20. On the upper side of the bearing 22, a rib-shaped pressing protrusion 20a that projects to the inner peripheral side of the upper end portion of the driving pulley 20 is disposed. It is regulated.

The pressing protrusion 20 a of the driving pulley 20 can contact only the outer case member 22 a on the outer periphery of the bearing 22 by setting the projecting dimension from the inner peripheral surface of the driving pulley 20. The pressing protrusion 20a does not contact the inner case member 22c, which is rotatable with respect to the outer case member 22a via the ball 22b.
The bearing 22 has its outer case member 22a placed on a ring plate-shaped retaining ring 31a attached by fitting in the groove 20b on the inner periphery of the lower portion of the driving pulley 20. The bearing 22 is held by the outer case member 22 a being sandwiched between the retaining ring 31 a and the pressing protrusion 20 a of the driving pulley 20. The inner case member 22c of the bearing 22 is located on the opening inside the retaining ring 31a and is rotatable with respect to the retaining ring 31a.

  As shown in FIG. 4, the rotating member K of the driven side rotating unit 2 </ b> B (denoted with reference numeral 25 in the drawing) is specifically, the driving side by a ring-shaped bearing 26 fixed to the machine base 7. A disk-shaped driven-side rotating plate 25b is provided at the upper end of a shaft portion 25a rotatably supported by a rotating shaft 25c in the vertical direction parallel to the rotating shaft 12c of the rotating member K (the driving-side rotating plate 18) of the rotating unit 2A. The structure is provided integrally. The driven-side rotating unit 2B fixes the ring-shaped driven pulley 28 on the driven-side rotating plate 25b, and a ring-shaped bearing 30 (hereinafter also referred to as a second bearing) housed inside the driven pulley 28. The shaft body J (indicated by reference numeral 15 in the figure, hereinafter also referred to as a second moving shaft) is inserted inside the shaft, and is erected on the driven side rotating plate 25b.

  As shown in FIG. 4, the second moving shaft 15 is coaxially rotated on the axis of the ring-shaped driven pulley 28 via the bearing 30 (second bearing) having a lower end inserted therein. It is rotatably supported. The driven pulley 28 and the second bearing 30 are mounted on the driven-side rotating plate 25b with their axes parallel and eccentric to the rotating axis 25c of the driven-side rotating member 25. The second moving shaft 15 is erected in a state where its axis 15 c is parallel and eccentric to the rotation axis 25 c of the driven side rotation member 25, and protrudes above the bearing 30 and the driven pulley 28.

As shown in FIG. 4, the driven pulley 28 is fixed (screwed) to a rotating plate 25 b (driven side rotating plate) of the driven side rotating member 25 by a screw 29.
The ring-shaped bearing 30 is inserted inside the driven pulley 28 so as to be coaxial with the driven pulley 28. On the upper side of the bearing 30, a rib-like pressing projection piece 28a that projects to the inner peripheral side of the upper end portion of the driven pulley 28 is disposed. It is regulated.

The pressing protrusion 28 a of the driven pulley 28 can contact only the outer case member 30 a on the outer periphery of the bearing 30 by setting the projecting dimension from the inner peripheral surface of the driven pulley 28. The pressing protrusion 28a does not contact the rotatable inner case member 30c via the ball 30b with respect to the outer case member 30a in the bearing 30.
Further, the outer case member 30a of the bearing 30 is placed on a ring plate-shaped retaining ring 31b attached by being fitted in a groove 28b in the inner periphery of the lower portion of the driven pulley 28. In the bearing 30, the outer case member 30 a is held between the retaining ring 31 b and the pressing protrusion 20 a of the driven pulley 20. The inner case member 30c of the bearing 30 is positioned on the inner opening of the retaining ring 31b, does not contact the retaining ring 31b, and is rotatable with respect to the retaining ring 31b.

In the oscillating drive unit 2 illustrated in FIG. 4, the first moving shaft 13 and the second moving shaft 15 have upper end portions inserted into the shaft insertion holes 8 b opened in the top plate 8 on the top plate 8. It is fixed to the fixed shaft mounting plate 23 (in the illustrated example, screwed with a screw 24) and supported in a suspended state from the top plate 8. The lower ends of the first moving shaft 13 and the second moving shaft 15 are located above the rotating member (in the illustrated example, the driving side rotating plates 18 and 25b) and are not in contact with the rotating member.
For this reason, the rotating unit does not bear the weight of the top plate 8 and the placed object such as the swing object placed on the top plate 8 (for example, the container 9 and the cover plate 10 illustrated in FIG. 10). This oscillating device 1 has a structure in which the bearings 22 and 30 of each rotary unit of the oscillating drive unit 2 do not bear the weight of an object to be placed such as the object to be oscillated placed on the top plate 8 and the top plate 8. It has become.
Further, the shaft body J is not fixed to the bearings 22 and 30 of the rotary units of the swing drive unit 2, and the outer peripheral surfaces thereof are the inner peripheral surfaces of the inner case members 22 c and 30 c of the bearings 22 and 30. On the other hand, it is slidable.

  The rotating unit of the swing drive unit is not limited to the configuration in which the lower end portion of the shaft body fixed to the top plate 8 and provided in a suspended state is not in contact with the rotating member. A configuration in which is in contact with the rotating member is also employed.

The pulleys 20 and 28 of the rotary units of the swing drive unit 2 have the same diameter.
Further, in the rotation unit on the driving side and the driven side of the oscillating drive unit 2 in the illustrated example, two bearings 22 and 30 are stacked respectively, but a bearing for rotatably supporting the shaft body. There is no particular limitation on the number of installations.

  In the oscillating drive unit 2, the rotation axes of the respective rotation units (the rotation axes of the rotation members) are parallel to each other. Further, the eccentric amount of the shaft body J with respect to the rotation axis is the same for each rotation unit. Further, the eccentric direction of the shaft body J with respect to the rotation axis of the rotary unit in each rotary unit is the same.

That is, as shown in FIG. 7, the shaft body J of each rotary unit has the same eccentric vector with respect to the rotation axis of the rotary unit (in the same direction, the same amount of eccentricity in the plan view).
In plan view, the shaft bodies J are arranged at the same arrangement pitch as the rotation axis lines of the plurality of rotation units on a straight line parallel to an imaginary line on which the rotation axis lines of the plurality of rotation units are arranged. When each rotary unit is driven to rotate by the motor 11, the shaft body J of the plurality of rotary units rotates on a straight line parallel to an imaginary straight line on which the rotation axes of the rotary units are arranged in a plan view of the oscillating device. While being arranged at the same arrangement pitch as the rotation axis of the unit, each is rotated around the rotation axis of the rotation unit. In other words, the shaft bodies J of the plurality of rotating units have their respective rotation axes that are in parallel with the virtual planes that overlap the axis of each of the rotating bodies J, while the virtual planes that overlap the rotational axes of the respective rotating units remain parallel. Rotate to the center.

Therefore, in this oscillating drive unit 2, all the shaft bodies J are collectively rotated by the rotational driving force of the motor 11 while maintaining the relative positional relationship with each other. Further, in the swing device 1, when the plurality of shaft bodies J of the swing drive unit 2 are rotationally moved by driving the swing drive unit 2, the top plate 8 follows the rotational movement of each shaft body J. Rotate.
The eccentric amount of the shaft body J with respect to the rotation axis of the rotation unit in each rotation unit is much smaller than the size of the top plate 8 in plan view (for example, the outer diameter of the disk-shaped top plate 8).

  1, 2, 7, etc., the oscillating device 1 in the illustrated example aligns the center of the disk-shaped top plate 8 with the drive shaft 12 of the motor 11 and the rotation axis 12 c of the driving side rotation unit 2 </ b> A. is doing. In this oscillating device 1, the rotational movement of the top plate 8 when the motor 11 is driven can be regarded as a rotational movement around the drive shaft 12 of the motor 11 and the rotational axis 12 c of the driving side rotation unit 2 </ b> A.

  As shown in FIGS. 1, 4, etc., the oscillating drive unit 2 of the oscillating device 1 in the illustrated example includes a connecting plate 33 that connects the first moving shaft 13 and the second moving shaft 15, and the driving force transmission belt. It has a tension roller 34 that applies tension to 32 to prevent loosening.

  The connecting plate 33 has shaft housing holes 33a and 33b that are provided at different positions in the surface direction. The first moving shaft 13 and the second moving shaft 15 have their portions extending upward from the pulleys 20 and 28 inserted in the shaft receiving holes 33a and 33b of the connecting plate 33 so as to be rotatable about their respective axes. The first moving shaft 13 and the second moving shaft 15 slide on the inner peripheral surfaces of the shaft housing holes 33a and 33b and rotate about their respective axes. The connecting plate 33 functions to collectively hold the first moving shaft 13 and the second moving shaft 15 passed through the shaft housing holes 33a and 33b and to keep the axes 13c and 15c parallel to each other.

As shown in FIG. 4, the connecting plate 33 is extrapolated to the first moving shaft 13 and the second moving shaft 15, and the bearings 22 and 30 of the rotating units 2 </ b> A and 2 </ b> B on the driving side and the driven side (in detail, the inner case thereof). The members 22c and 30c) are placed on a cylindrical spacer 36 interposed between the connecting plate 33 and provided above the rotating members K of the plurality of rotating units of the swing drive unit 2. .
The oscillating drive unit 2 includes the connecting plate 33 together with the shaft body J and the top plate 8 of each rotating unit when the driving-side and driven-side rotating units 2A, 2B are rotated by the rotational driving force from the motor 11. Is also rotated about the rotation axis of each of the rotary units 2A, 2B.

  In the oscillating device 1 of the illustrated example, the tension roller 34 has a structure in which a roller body 34a, which is a ring-shaped member, is externally inserted into a shaft portion 35a of a bolt 35 and is rotatably supported. The tension roller 34 is attached to a position between the pair of shaft housing holes 33 a and 33 b of the connection plate 33 in a suspended state, and is provided in a direction in which the rotation axis of the roller body 34 a is perpendicular to the connection plate 33. Yes.

As shown in FIGS. 1 and 4, specifically, the tension roller 34 is formed by penetrating the shaft portion 35 a of the bolt 35 at an intermediate position between the pair of shaft housing holes 33 a and 33 b in the connecting plate 33. A nut 37 having a size that does not enter the bolt hole 33c is screwed into a tip portion of the shaft portion 35a that protrudes from the bolt plate 33c and protrudes onto the connecting plate 33, and is attached to the connecting plate 33 in a suspended state. Yes.
The roller main body 34a extrapolated to the shaft portion 35a of the bolt 35 is prevented from coming off by a head portion 35b formed thicker than the shaft portion 35a at the lower end portion (base end portion) of the shaft portion 35a of the bolt 35. Thus, the bolt 35 does not fall downward. The tension roller 34 is fixed to the connecting plate 33 by tightening the nut 37.

As shown in FIG. 2, the driving force transmission belt 32 has one of two extension portions 32 a extending between the pulleys 20, 28 in contact with the outer peripheral surface of the roller body 34 a of the tension roller 34. Tension is given as a bent state.
As shown in FIG. 2, the bolt hole 33 c of the connecting plate 33 is a direction orthogonal to the interval direction of the pair of shaft housing holes 33 a and 33 b formed to be separated from the connecting plate 33 in a plan view of the swing device 1. It is a long hole extending to The tension roller 34 can adjust the tension applied to the driving force transmission belt 32 by adjusting the fixing position of the bolt 35 with respect to the connecting plate 33 in the longitudinal direction of the bolt hole 33c in plan view.

  As shown in FIGS. 1 and 4, the tension roller 34 of the illustrated swinging device 1 specifically uses a ring-shaped bearing as the roller body 34 a, and this bearing is used as the shaft portion 35 a of the bolt 35. A plurality of extrapolated structures are provided. However, the number of roller main bodies 34a extrapolated to the shaft portion 35a of the bolt 35 may be one or more, and can be set as appropriate.

Next, the auxiliary support unit 3 will be described.
As shown in FIGS. 1 and 2, a plurality (three) of auxiliary support units 3 are arranged around the swing drive unit 2. The plurality of auxiliary support units 3 are arranged at equal positions on the circumference around the center of the top plate 8 in plan view, and each supports the top plate 8.

  As shown in FIGS. 5 and 6 (a) and 6 (b), the auxiliary support unit 3 includes a case 40 fixed on the machine base 7 and an upper surface (receiving member) of the receiving member 43 at the bottom of the case 40. And a movable support 50 having a support column 51 protruding upward from a window portion 41a opened in the upper plate 41 on the case 40.

The movable support 50 is provided so that the upper end of the support column 51 is fixed to the top plate 8 and can be moved integrally with the top plate 8.
A plate-like retainer 52 is provided at the lower end of the support column 51 of the movable support 50 in a direction along the upper surface of the receiving member 43. The movable support 50 includes the balls 53 that are rotatably accommodated in ball holes 52 a penetrating through a plurality of locations of the retainer 52. Further, as shown in FIGS. 5 and 6A, the movable support 50 is provided with an upper receiving plate 54 that is fixed to the support column 51 and is provided above the retainer 52 and perpendicular to the support column 51. The upper receiving plate 54 is placed on the ball 53.

As shown in FIGS. 5 and 6A, the support column 51 is specifically a screw (bolt), and a head portion 51b formed thicker at one end of the shaft portion 51a than the shaft portion 51a. Have
The movable support 50 has a top plate connecting plate 55 that is provided on the column 51 so as to be attached to the head 51 b of the column 51 by being extrapolated to the column 51.

As shown in FIG. 6A, the top plate connecting plate 55 has a through hole 55a through which the shaft portion 51a of the support column 51 can be inserted at the center thereof. The top plate connecting plate 55 is provided by accommodating the head portion 51b of the support column 51 in a counterbore portion 55b obtained by extending one end of the through hole 55a and extrapolating the support column 51.
The top plate connection plate 55 is fixed to the upper end portion (near the head portion 51 b) of the support column 51 and disposed above the case 40.

As shown in FIG. 6A, the shaft portion 51a of the support column 51 of the movable support 50 is a male screw shaft having a screw thread on the outer periphery thereof. A nut 56 is screwed to the lower end portion of the shaft portion 51a.
The movable support 50 includes a washer 57 that is externally attached to the shaft portion 51 a and placed on the nut 56, and a cylindrical first member that is externally attached to the shaft portion 51 a and is placed on the washer 57. It has a collar 58 and a ring plate-like retainer 52 that is extrapolated to the first collar 58 and placed on the washer 57. However, the thickness of the retainer 52 is slightly smaller than the dimension of the first collar 58 in the axial direction.
Further, the movable support 50 is inserted on the shaft portion 51a by passing the shaft portion 51a through the through hole 54a penetrating the center portion of the disk-shaped upper receiving plate 54, and is mounted on the first collar 58. The cylindrical second collar 59 is inserted between the upper receiving plate 54 and the top plate connecting plate 55 so as to be extrapolated to the shaft portion 51a.

  The movable support 50 has a washer 57, a first collar 58, an upper receiving plate 54, a second collar 59, between the nut 56 and the head 51b of the column 51 by the tightening force of the nut 56. A top plate connecting plate 55 is fixed. The top plate connecting plate 55 is pressed and fixed to the head portion 51 b of the support column 51 by the tightening force of the nut 56.

The structure for fixing the top plate connecting plate 55 to the upper end of the column 51 is not limited to the above-described configuration. For example, the structure etc. which were pressed and fixed to the head 51b of the support | pillar 51 with the fastening force of the nut screwed to the axial part 51a of the support | pillar 51 are also employable.
Further, the structure for fixing the upper receiving plate 54 to the support column 51 is not limited to the structure shown in the figure. For example, the upper receiving plate 54 is attached to the shaft 51a of the support column 51 from both sides by a plurality of screws. It is also possible to adopt a structure that is fastened and fixed.

As shown in FIG. 5, the movable support 50 has the top plate connecting plate 55 fixed to a spacer 61 fixed to the lower surface of the top plate 8 (in the illustrated example, screwed and fixed using screws 61a). It is attached to the top plate 8. The movable support 50 is provided by fixing the upper end portion (near the head 51 b) of the support column 51 to the top plate 8 via the top plate connecting plate 55 and the spacer 61.
In FIG. 5, the top plate connecting plate 55 and the spacer 61 are inserted into screw holes that penetrate the top plate 8, and are inserted into the screw through holes provided in the spacer 61. Are fastened and fixed to the top plate 8 by a fastening force that is screwed into a female screw hole 55c formed in the top plate connecting plate 55 and fastened.

  In view of the difference in height between the swing drive unit 2 and each auxiliary support unit 3, the spacer 61 supports the top plate 8 in a direction perpendicular to the rotation axis of the rotation member K of the swing drive unit 2. Provided as necessary. Therefore, the installation of the spacer 61 is not essential, and can be omitted as appropriate or changed to an appropriate size.

  The fixing structure for fixing the upper end portion of the support column 51 to the top plate 8 is not limited to the configuration in which the support 51 is fixed via the top plate connecting plate 55. As this fixing structure, for example, a structure in which the upper end of the column 51 is directly fixed to the top plate 8 or the spacer 61 by tightening a nut screwed to the upper end of the column 51 can be employed.

As shown in FIGS. 5 and 6A, the upper support plate 54 and the lower portion of the movable support 50 from the upper support plate 54 are accommodated in the case 40.
The upper receiving plate 54 is disposed slightly below the upper plate 41 of the case 40 and does not contact the upper plate 41.

As described above, the retainer 52 has a thickness (a thickness dimension from a thick portion (described later) to an inner portion of the outer periphery of the retainer 52, including a ring-shaped protrusion 52e described later) of the first collar 58. This is a ring plate-like member that is slightly smaller than the dimension in the axial direction. In a state where the retainer 52 is placed on the washer 57 fixed to the support column 51 in a direction perpendicular to the axis thereof, the retainer 52 is placed on the upper side through a slight clearance with the upper receiving plate 54. The lower receiving plate 54 is disposed in parallel with the upper receiving plate 54.
As shown in FIG. 6A, a protrusion (outer peripheral protrusion 52 c) is provided around the entire outer periphery of the retainer 52 on the lower surface side, and the retainer 52 is disposed on the outer periphery of the outer periphery. It has a thick portion that is thicker than the protrusion 52c. The retainer 52 is placed on the washer 57 with a washer abutting surface 52d, which is the lower surface of the inner portion (main plate portion 52e) from the thick portion in the radial direction abutting against the washer 57. The inner diameter of the outer peripheral protrusion 52 c, that is, the inner diameter of the recess (washer accommodating recess) inside the outer peripheral protrusion 52 c on the lower surface side of the retainer 52 is larger than the outer diameter of the washer 57.
Specifically, the retainer 52 in the illustrated example has a ring-shaped protrusion 52f that protrudes around the inner hole 52b of the retainer 52 on the upper surface (specifically, on the main plate portion 52e). The retainer 52 has a dimension obtained by adding a protrusion dimension from the upper surface of the retainer 52 to the thickness of the main plate part 52 e (in the illustrated example, a protrusion dimension from the main plate part 52 e) in the axial direction of the first collar 58. It is slightly smaller than the dimensions.

The inner diameter of the retainer 52, that is, the inner diameter of the inner hole 52 b of the ring plate-like retainer 52 is much larger than the outer diameter of the first collar 58. The retainer 52 is not fixed with respect to the support column 51, and is provided with respect to the support column 51 while allowing movement in the direction perpendicular to the axis of the support column 51 and slight swinging.
However, the inner diameter of the retainer 52 is smaller than the outer diameter of the washer 57. For this reason, the retainer 52 does not fall downward from the washer 57 due to the movement in the direction perpendicular to the axis of the column 51. The retainer 52 can slide on the washer 57 and move in a direction perpendicular to the axis of the support 51.
The movable support 50 illustrated in FIG. 6A and the like has a difference between the inner diameter of the inner hole 52b of the retainer 52 and the outer diameter of the first collar 58, and the outer diameter of the outer peripheral projection 52c of the retainer 52 and the outer of the washer 57. It is slightly smaller than the difference with the diameter. However, the configuration of the movable support 50 is not limited to this, and the difference between the inner diameter of the inner hole 52b of the retainer 52 and the outer diameter of the first collar 58 is determined based on the inner diameter of the outer peripheral projection 52c of the retainer 52 and the outer diameter of the washer 57. It is also possible to adopt a configuration that is the same or larger than the difference between the two.

  As shown in FIG. 6A, the outer diameter of the ball 53 is larger than the thickness of the retainer 52. The ball 53 is accommodated in the ball hole 52a of the retainer 52 so as to be movable up and down. The ball hole 52 a of the retainer 52 shown in FIGS. 6A and 6B is formed as a round hole having an inner diameter slightly larger than the outer diameter of the ball 53.

  The movable support body 50 is supported by the receiving member 43 through the ball 53 in its entire weight. In this movable support 50, the weight of the support column 51 and all the components fixed to the support column 51 acts on the ball 53 on the support member 43 through the upper receiving plate 54 placed on the ball 53. To do. The movable support 50 includes a retainer 52 placed so as to overlap the washer 57 in a state where the upper receiving plate 54 is placed on the ball 53, and is higher than the receiving member 43. The ball 53 is positioned below the upper receiving plate 54 and protrudes above and below the retainer 52.

The retainer 52 illustrated in FIG. 6B has a configuration in which balls 53 are stored one by one in ball holes 52a formed at six locations on the outer periphery thereof.
However, the ball holes 52a of the retainer 52 may be formed uniformly at three or more locations around the center of the retainer 52 (the center of the opening of the ring plate retainer 52). Five or seven or more locations may be used.

Next, the operation of the swing device 1 of this embodiment will be described with reference to FIG.
When the drive shaft 12 rotates by driving the motor 11, the driving pulley 20 rotates, and the driven pulley 28 rotates following the driving force transmission belt 32. As the driving pulley 20 and the driven pulley 28 rotate, the first moving shaft 13 and the second moving shaft 15 rotate with the eccentric amounts of the rotating members 18 and 25 from the rotating axes 12c and 25c maintained stably. It rotates while drawing a locus of a circle centering on the axis lines 12c and 25c.

  Reference numerals 131, 132, and 133 in FIG. 7 indicate movement trajectories of the first movement shaft 13. As indicated by reference numerals 151, 152, and 153, the second movement shaft 15 follows a movement of the first movement shaft 13 and moves along a circular movement locus. By moving the first moving shaft 13 and the second moving shaft 15 in a circular movement locus, the top plate 8 also moves in a circular movement locus as indicated by reference numerals 81, 82, and 83. Such movement of drawing the circular movement locus of the top plate 8 continues while the motor 11 is driven. Reference numerals 201, 202, and 203 in FIG. 7 indicate the movement locus of the driving pulley, the reference numeral, and the movement locus of the upper receiving plate 54 of the movable support 50.

Further, when the top plate 8 is rotated by the drive of the swing drive unit 2, the movable support 50 also has an eccentric amount of the shaft body J with respect to the rotation axis of the rotary member K in each rotary unit of the swing drive unit 2. The trajectory of a circle with a corresponding radius of rotation is drawn, and is rotated and moved integrally with the top plate 8. Reference numerals 541, 542, and 543 in FIG. 7 indicate movement trajectories of the upper receiving plate 54 of the movable support 50.
The rotational movement of the movable support 50 continues while the motor 11 is driven.

  The movable support 50 is configured so that the ball 53 on the flat upper surface (receiving surface) of the receiving member 43 at the bottom of the case 40 is rotated as the top plate 8 is rotated by the drive of the swing drive unit 2. By rolling, it rotates and moves integrally with the top plate 8. The upper surface of the receiving member 43 of each auxiliary support unit 3 is located on an extension of one plane orthogonal to the rotation axis of the rotation member K in each rotation unit of the swing drive unit 2.

The rotational movement of the movable support 50 when the top plate 8 is rotationally moved by the drive of the swing drive unit 2 is the amount of eccentricity of the shaft body J with respect to the rotational axis of the rotary member K in each rotary unit of the swing drive unit 2. Is a rotational movement that draws a locus of a circle with a radius of rotation equivalent to.
In this oscillating device 1, the rolling of the ball 53 with respect to the receiving member 43 and the upper receiving plate 54 continues while the rotational movement of the movable support 50 by the drive of the oscillating drive unit 2 is continued. At this time, the ball 53 continuously rotates and moves along a circular locus while rolling on the receiving member 43 as the upper receiving plate 54 rotates. The swinging device 1 is seized because the ball 53 continues to roll and continues to move relative to the receiving member 43 and the upper receiving plate 54 while the driving of the swinging drive unit 2 continues. Local heating (which is locally high due to contact friction) is less likely to occur. As a result, this oscillating device is unlikely to have a problem that the operation is locked due to seizure, unlike the oscillating device having a conventional configuration using a plurality of linear motion devices, and the oscillating performance can be stably maintained over a long period of time.

  Further, as described above, the swing device of the conventional configuration using a plurality of linear motion devices repeats reciprocating motion within a very narrow rolling range of the linear motion device, so that local wear progresses on the balls. Cheap. On the other hand, the swing device 1 is less likely to cause local wear of the ball 53 of the movable support 50, and the entire surface of the ball 53 is compared with the ball of the linear motion device in the swing device of the conventional configuration. Since the wear can be averaged, it effectively contributes to an increase in contact friction due to local wear progress and suppression of heat generation.

As shown in FIGS. 1 and 6A, the case 40 has a cylindrical outer peripheral wall 42. As shown in FIGS. 6A and 6B, in this swinging device 1, the movable range (rotational movement range) of the upper support plate 54 of the movable support 50 driven by the swinging drive unit 2 is the upper receiving unit. It is set in a range where the plate 54 does not contact the outer peripheral wall 42 of the case 40.
In the window portion 41a opened on the upper plate 41 on the upper side of the case 40, the rotational movement range (movable range) of the support column 51 of the movable support 50 when the top plate 8 is rotationally moved by driving the swing drive unit 2. Larger opening dimensions are ensured. When the top plate 8 is rotated and moved by the swing drive unit 2, the support column 51 can freely rotate and move within the window portion 41 a without contacting the upper plate 41.

As shown in FIGS. 6A and 6B, in this oscillating device 1, the movable range of the ball 53 of the movable support 50 that rotates by the drive of the oscillating drive unit 2 is the outer peripheral wall 42 of the case 40. It is limited on the upper surface of a disk-shaped receiving member 43 (lower receiving plate) whose outer diameter is slightly smaller than the inner diameter.
The ball 53 and the upper receiving plate 54 and the receiving member 43 that are in direct contact with the ball 53 are made of a material having high strength and high hardness such as martensitic stainless steel such as SUS440C subjected to heat treatment (quenching / tempering). It can be suitably employed. The use of such a high-strength and high-hardness material suppresses heat generation due to contact friction of the balls 53, makes it difficult to cause inconveniences such as locking of the swinging device due to seizure, and reduces maintenance costs and extends product life. This is advantageous.
The materials of the ball 53, the upper receiving plate 54, and the receiving member 43 are not limited to those described above, and metal materials other than those described above, ceramics, and the like can also be used.

As described above, the retainer 52 is not fixed to the support column 51, and can float with respect to the support column 51 by allowing the support column 51 to move in the direction perpendicular to the axis of the support column 51 and slightly swing. Is provided. As shown in FIGS. 6A and 6B, the movable support 50 is rotated by the drive of the swinging drive unit 2, and the ball 53 rotating in the ball hole 52a of the retainer 52 is moved to the ball hole 52a. When the retainer 52 floats when coming into contact with the inner peripheral surface, an increase in contact friction between the retainer 52 and the ball 53 can be suppressed, and the state in which the ball 53 rotates smoothly can be stably maintained.
In addition, as the retainer 52, in view of reducing the contact resistance between the inner surface of the ball hole 52a and the ball 53, a member having a good surface slidability, for example, a member formed of a plastic material such as polyacetal can be suitably employed.

As shown in FIGS. 6A and 6B, the outer peripheral wall 42 (side wall) of the case 40 is provided with a nipple 44 for injecting lubricating grease from the outside to the inside of the case 40. The auxiliary support unit 3 can easily supply the lubricating grease to the balls 53 of the movable support 50.
In the case 40, a rib-shaped outer peripheral bottom wall 42a extending from the lower end of the outer peripheral wall 42 to the entire inner peripheral side thereof is fixed on a base plate 47, and a disc-shaped receiving member 43 is provided inside the outer peripheral bottom wall 42a. Is placed and placed on the base plate 47. The upper surface of the receiving member 43 is positioned flush with or slightly below the upper surface of the outer peripheral bottom wall 42a (in the illustrated example, flush), and the lubricating grease injected into the case 40 via the nipple 44 is It extends over the receiving member 43. For this reason, the auxiliary support unit 3 can efficiently supply the grease for lubrication to the balls 53 of the movable support 50.
In the auxiliary support unit 3, as described above, the ball 53 continues to roll with respect to the receiving member 43 and the upper receiving plate 54 while the swing drive unit 2 is being driven. By rolling and moving, the lubricating grease can be efficiently spread on the receiving member 43, and the lubricating grease can be evenly distributed to all the balls 53.

  The case 40 in the illustrated example includes a case main body 40a which is a member formed by integrally forming a cylindrical outer peripheral wall 42, an upper plate of the upper ring plate, and a lower ring plate outer peripheral bottom wall 42a. Have. In this case 40, the outer peripheral bottom wall 42a of the case main body 40a is fixed on the base plate 47 using screws 45, and the receiving member 43 fitted inside the outer peripheral bottom wall 42a is fixed on the base plate 47 by the case main body 40a. The structure is held at a predetermined position. As shown in FIG. 5, the case 40 is attached to a desired position on the machine base 7 by fixing the base plate 47 on the base plate 7 a of the machine base 7 using screws 46.

Further, as shown in FIG. 8, the case 40 has an entire lower side from the upper plate 41 as a container (lubricant storage container) capable of storing lubricating grease, and stores the lubricating grease 62 therein, The lubricating grease 62 may have a liquid depth that allows a part or all of the balls 53 of the movable support 50 to be buried. Reference numeral 40A is added to the case 40 shown in FIG.
The auxiliary support unit 3 </ b> A employing the case 40 </ b> A can reliably prevent seizure due to oil leakage accompanying the rolling of the ball 53.
Note that the case 40A illustrated in FIG. 8 is a single member that is integrally molded as a whole, but is not limited thereto, and may be configured by a plurality of members.

  As the case, a configuration in which the base plate 7a itself of the machine base 7 is used as a receiving member can also be adopted. In this case, there is no need to provide a separate receiving member other than the base plate 7a of the machine base 7, and the number of parts can be reduced and the cost can be reduced.

The bearings 22 and 30 of the oscillating drive unit 2 are rotationally moved around the rotational axes 12c and 25c of the rotary units 2A and 2B, respectively, when the top plate 8 is rotationally moved by driving the motor 11. The inner case members 22c and 30c (see FIG. 4) rotate relative to the outer case members 22a and 30a by contact with the outer peripheral surface of the lower end portion of the body J.
However, the oscillating drive unit 2 in the illustrated example has a moving radius (rotational radius, in other words, an eccentric amount with respect to the rotational axes 12c and 25c) of the bearings 22 and 30 that rotates and rotates as the rotating units 2A and 2B rotate. The moving radius (rotational radius) of the movable support 50 that rotates and moves with the rotational movement of the plate 8 is significantly reduced. For this reason, the moving speed of the bearings 22 and 30 that rotate when the top plate 8 is rotated by the drive of the motor 11 is much slower than the moving speed of the movable support 50. Therefore, with respect to the bearings 22 and 30, even if the top plate 8 is continuously rotated by driving the motor 11, the contact friction between the inner case members 22 c and 30 c and the outer case members 22 a and 30 a, the inner case members 22 c and 30 c. Further, the heat generated by the contact friction of the balls 22b and 30b with the outer case members 22a and 30a is small, and there is no fear of causing seizure.

The bearings 22 and 30 are filled with lubricating grease. This also contributes effectively to the suppression of heat generation of the bearings 22 and 30 when the top plate 8 is continuously rotated by the swing drive unit 2.
However, as described above, the bearings 22 and 30 generate heat due to the rotational movement by making the moving radius of the rotational movement accompanying the rotation of the rotating units 2A and 2B much smaller than the moving radius of the movable support 50. Since it can suppress, it is also possible to use what is not filled with grease.

In this rocking device 1, as shown in FIG. 10, with the container 9 containing, for example, a liquid as a rocking object placed on the top plate 8, the rocking drive unit 2 is driven and the top plate 8 is driven. By rotating and moving, the liquid in the container 9 can be stirred and vortex formation for defoaming can be performed.
In addition, the swing device 1 uses the top plate 8 and the weight of the placed object such as a swing target placed on the top plate 8 to a plurality of auxiliary support units 3, more specifically, each auxiliary support unit 3. The movable support 50 can be dispersed and supported. For this reason, this oscillating device 1 is a case where a heavy-weight oscillating object such as a container 9 (see FIG. 10) containing several liters to several tens of liters of liquid is placed on the top plate 8, for example. In addition, the top plate 8 can be stably supported by the plurality of movable supports 50. Moreover, in the swing device 1, the plurality of movable supports 50 that support the top plate 8 are movable on the receiving member 43 by balls 53 that roll on the receiving member 43 at the bottom of the case 40. When the swing drive unit 2 is driven, the top plate 8 and the swing object can be rotated and moved smoothly. Therefore, the swing device 1 is a case where a heavy load swing target object such as a container 9 (see FIG. 10) containing, for example, several liters to several tens of liters of liquid is placed on the top plate 8. The liquid in the container 9 can be stirred and degassed easily and stably.

  Further, the swinging device 1 can swing the swing target object simply by placing the swing target object on the top plate 8 and driving the swing drive unit 2. In addition, the rocking device 1 can be simplified in structure as compared with a rocking device having a conventional structure that is assembled by using a plurality of expensive linear motion devices, and can easily realize cost reduction.

  Further, the rocking device 1 can stir and degas the liquid in the container 9 even when the liquid in the container 9 is less than 1 liter and the liquid depth is shallow (for example, less than 1 cm).

For example, as a technique for stirring a liquid of several liters to several tens of liters, there is also a device that rotationally drives a propeller provided on the inner bottom of a container containing the liquid in the liquid. This device integrally rotates a propeller fixed to the shaft together with a shaft passing through a through-hole penetrating the bottom wall of the container up and down by a rotational driving force of a rotational driving mechanism disposed on the lower side of the container. . However, this device needs to seal the through hole (shaft insertion hole) in the container bottom wall. For this reason, in this apparatus, the release of contaminants from the seal member to the liquid in the container and the abrasion powder generated by sliding between the seal member and the shaft may cause contamination of the liquid in the container. In particular, it is unsuitable for the rocking and stirring of liquids that require a particularly high cleanliness (low contamination).
On the other hand, the rocking device 1 is configured to rock the liquid contained in the container 9 separate from the rocking device 1 together with the container 9, so that high cleanliness (low contamination) is required. The liquid can be suitably used for vortex formation for shaking, stirring and defoaming.

The swing device 1 also has an operation unit 63 for setting (command input) the rotational movement speed of the top plate 8 by the swing drive unit 2.
FIG. 9 shows an example of the operation unit 63. The operation unit 63 shown in FIG. 9 is a switch panel in which a plurality of push button type touch switches are arranged. The operation unit 63 includes a plurality of (in the illustrated example) for setting the rotational movement speed of the top 8 to any one of a plurality of different ones (high speed, medium speed, and low speed in the operation unit 63 shown in FIG. 9). 3) speed setting switches 64a, 64b, 64c, and a plurality (two in the illustrated example) of operation selection switches 65a for setting (command input) the rotation operation of the top plate 8 by the oscillating drive unit 2. , 65b. The operation unit 63 also includes a setting reset switch 66, a start button 67, and a stop button 68. The three speed setting switches 64a, 64b, and 64c, the two operation selection switches 65a and 65b, the setting reset switch 66, the start button 67, and the stop button 68 are push-button touch switches that are turned on by a push-in operation. .

In the swing device 1, when the operator pushes and operates one of the three speed setting switches 64 a, 64 b, 64 c of the operation unit 63, the top plate 8 is rotated by the swing drive unit 2. The moving speed can be set in any one of three stages of high speed, medium speed, and low speed in accordance with the speed setting switches 64a, 64b, and 64c that have been pushed in. In this oscillating device 1, the rotational speed of the top plate 8 is adjusted so that the rotational speed of the motor 11 of the oscillating drive unit 2 is set according to the speed setting switches 64 a, 64 b, 64 c that have been pushed in. The speed is set according to the set rotation speed.
The configuration of the oscillating device 1 that can set the rotational movement speed of the top plate 8 by setting the rotational speed of the motor 11 is simpler in operation control than a conventional oscillating device that is assembled using a plurality of linear motion devices. There is an advantage that it only takes.

The oscillating device 1 includes a continuous rotation operation ("continuous rotation" in FIG. 9) for continuously rotating the top plate 8 in a certain direction as a rotation operation of the top plate 8 by the oscillation drive unit 2, and a top plate. After repeatedly rotating 8 in a certain direction by a preset amount of rotation, a reversing operation (“forward / reverse inversion” in FIG. 9) is repeated in which the direction of rotation is reversed and rotationally moved by a preset amount of rotation. It is possible.
The swing device 1 can select and set the continuous rotation operation by pushing the operation selection switch 65a of the operation unit 63, and repeatedly performs the reversing operation by pushing the operation selection switch 65b. Can be selected and set.

The oscillating device 1 has a control unit (not shown) that controls the rotational drive of a rotational drive source (motor 11 in the illustrated example). In the swing device 1, the operator uses the speed setting switch and the operation selection switch of the operation unit 63 to select the rotational movement speed of the top plate 8 and the rotational operation of the top plate 8 by the swing drive unit 2. After the setting, the start button 67 is pushed in so that the control unit controls the driving of the rotational drive source, and the top plate 8 at the rotational movement speed and rotational operation selected and set by the operation of the operation unit 63 is set. Start rotating movement. If the setting reset switch 66 is pushed before the start button 67 is pushed, the setting of the rotational movement speed and the rotation operation is cancelled.
Further, the rotational movement operation of the top plate 8 by the swing drive unit 2 is stopped by pushing the stop button 68 after the operation is started.

Note that the operation unit 63 is not limited to the above-described switch panel as long as it can set the rotational movement speed and rotation operation of the top plate 8 by the swing drive unit 2. As the operation unit 63, for example, a configuration using a touch panel type operation panel, a speed setting switch, or a dial type changeover switch as an operation selection switch may be used.
The setting of the rotational movement speed of the top plate 8 by the oscillating drive unit 2 is not limited to the switch type, and for example, the rotational movement speed of the top plate 8 by the oscillating drive unit 2 can be changed in stages by rotating the dial. A stepless dial type that can be changed steplessly is also possible.

Further, the rotational movement operation of the top plate 8 by the oscillating drive unit 2 is not limited to the above-described continuous rotation operation and repeated reversal operation. For example, intermittent rotation operation that repeats the rotational movement of the top plate 8 in a certain direction and the temporary stop state in which the rotational movement of the top plate 8 is stopped for a certain period of time, the rotational movement of the top plate 8 in a certain direction (positive direction) Also, it is possible to employ a intermittent reversing operation or the like in which the rotational movement of the top board 8 is stopped for a certain period of time and the rotational movement of the top board 8 in the direction opposite to the forward direction is repeatedly executed in this order. .
The operation unit may be configured to select and set (command input) one of three or more different rotational movement operations.

  However, in the rotational movement operation of the oscillating device 1, the rotation of the top plate 8 until the rotational drive source starts driving from the drive stop state until the rotational movement of the top plate 8 is temporarily stopped or the rotational movement direction is reversed. The amount of rotation (rotation angle) is determined by the amount of rotation of the movable support 50 that accompanies the rotation of the top plate 8 and the outer peripheral length of the ball 53 of the movable support 50 (the value obtained by multiplying the outer diameter of the ball 53 by the circumference ratio π) Set to be several times larger than or larger than that. That is, the rotational movement operation of the oscillating device 1 changes the rotation amount of the top board 8 from the start of the rotational movement of the top board 8 to the temporary stop of the rotational movement or the reversal of the rotational movement direction into the rotational movement of the top board 8. It is set so that the ball 53 of the movable support 50 rotates about several times or more by the accompanying rotational movement of the movable support 50.

  In FIG. 9, the configuration in which the operation unit 63 is attached to the machine base 7 is illustrated, but the operation unit 63 may be configured to be separated from a portion (machine body) except the operation unit 63 in the swing device 1. In this case, as the operation unit, for example, an oscillation drive unit is transmitted to the control unit provided in the airframe by, for example, transmission of an electric signal by a signal line or wireless signal transmission using a radio wave signal, an optical signal, or the like. 2 can be used to set the rotational movement speed and rotational operation (command input) of the top plate 8 according to 2.

  Further, the swing device may have a configuration in which the operation unit 63 is not provided and the rotational movement speed of the top plate 8 by the swing drive unit 2 is set to be constant in advance.

  As the movable support 50, for example, a plastic one can be suitably used as the retainer 52. In addition, the movable support 50 is attached to a plastic plate-like retainer 52 in which a ball hole 52 a is formed so that an oil supply contact member obtained by impregnating an open cell foamed resin foam with grease for lubrication can come into contact with the ball 53. It is also possible to employ a retainer with an oil supply member. When a retainer with an oil supply member is adopted as the retainer of the movable support 50, the auxiliary support unit 3 can supply oil to the balls 53 even if the case 40 is omitted, and a simple configuration in which the case 40 is omitted may be employed. .

Supplying the grease for lubrication to the bearings 22 and 30 and the movable support 50 is effective in terms of preventing the operation lock due to seizure more reliably and extending the life of the product (oscillator).
However, the movable support 50 has a structure in which the lower ball 53 continuously rolls on the receiving member provided on the machine base 7 while the top plate 8 is continuously rotated by the swing drive unit. Since it is difficult for local heating that causes seizure to occur on the upper receiving plate 54 and the receiving member, it is possible to omit the supply of lubricating grease to the balls 53.
Further, as described above, it is possible to use the bearings 22 and 30 that are not filled with lubricating grease.

As described above, the oscillating device does not provide lubrication grease on the bearings 22 and 30 and the movable support 50 of the oscillating drive unit 2, and the entire device can be made grease-free without using the lubricating grease. is there. In particular, when the top plate is rotated and moved at a relatively low speed, it is possible to easily realize the grease-less whole apparatus.
The rocking device is suitable for use in clean spaces such as a clean room in a production line for flat panel displays (for example, liquid crystal displays), food factories, pharmaceutical factories, etc. Can be used for

The swing object to be placed on the top plate 8 of the swing device is not limited to the container 9 containing the liquid. In addition to stirring and defoaming the liquid stored in the container 9, the rocking device, for example, is an operation for charging and dissolving a powdery, granular, block-shaped material having solubility in the liquid into the liquid stored in the container It can also be used for dissolution of gas in the liquid in the container, rocking test of industrial products, etc. Moreover, this rocking | swiveling apparatus can be utilized also as a sieving apparatus for sieving powder and a granule by installing a sieve on the top plate 8, for example.
Examples of the liquid that is housed and swung in the container 9 installed on the top plate 8 of the rocking device include liquid crystal materials used in a liquid crystal display production line. It is not limited. The liquid may be, for example, a liquid material for food production such as a seasoning liquid, a liquid pharmaceutical material, a heat-melted thermoplastic resin, or the like.

  For example, a stirring method in which a liquid in a container is shaken by a screw or the like that is driven to rotate by an electric motor or the like may affect the properties of the liquid by applying a shearing force to the liquid in the container. In contrast, the oscillating device according to the embodiment of the present invention is configured to oscillate the liquid in the container by the continuous rotational movement of the container itself, so that the liquid in the container affects the properties thereof. Can be swung without any problems.

  In addition, the rocking device according to the embodiment of the present invention can rock the liquid in the container simply by rocking the container placed on the placing table (the top plate 8 in the illustrated example). There is no need to insert or remove a screw from above the container into the container. For this reason, the oscillating device according to the embodiment of the present invention uses a container that can ensure a high hermeticity, and oscillates the container while maintaining the hermetic state to oscillate the liquid inside the container. It can use suitably for a use.

  An example is shown in FIG. In FIG. 11, a cover plate 10 is provided on the top plate 8 of the swing device 1 according to the embodiment of the present invention, and a vacuum device is provided on the cover plate 10 via a flexible pipe 71 such as a flexible hose. The case where the container 91 connected to 72 is placed and the liquid in the container 91 is swung together with the container 91 is shown. The container 91 is placed on a mounting table with a cover plate including the top plate 8 and the cover plate 10, and is fixed to the top plate 8 using a fixture or the like as necessary. In this case, for example, the container 91 is rocked by the rocking device 1 while the inside of the container 91 is depressurized by the vacuum device 72, so that degassing from the liquid in the container 91 can be performed efficiently.

  In the illustrated example, the machine base 7 of the swing device 1 is installed on the support frame F, and the motor 11 protruding downward from the machine base 7 is inserted into the support frame F. However, the swing device 1 The installation position of the motor 11 can be changed as appropriate, and may be, for example, the side of the machine base 7. The swing device 1 may be configured such that the motor 11 does not protrude below the machine base 7. The oscillating device 1 having a configuration in which the motor 11 does not protrude below the machine base 7 does not necessarily have to be installed on the support frame F. For example, the machine frame 7 is installed without the support frame F. It can also be installed directly on the floor.

FIG. 11 illustrates a configuration in which an internal container 73 containing a liquid is accommodated in a container 91 with its upper opening opened. The internal container 73 is fixed to the container 91 with a fixture provided in the container 91 as necessary. In the case of the configuration of FIG. 11, for example, the container 91 is rocked by the rocking device 1 while the inside of the container 91 is depressurized by the vacuum device 72, so that the liquid from the internal container 73 inside the container 91 is removed. Defoaming can be performed efficiently.
The container 91 opens and closes the open / close lid 91b provided on the upper part of the container main body 91a that houses the internal container 73, whereby the internal container 73 is stored in the container 91 and the internal container 73 is removed from the container 91. Etc. The container 91 can reliably seal other than the pipe connection portion by closing the open / close lid 91b with respect to the container main body 91a.

FIG. 12 illustrates a configuration in which a container 92 to which a liquid introduction pipe 74 and a liquid discharge pipe 75 are connected is placed on a mounting table (top plate 8 in the illustrated example) of the rocking device 1. The liquid introduction pipe 74 and the liquid discharge pipe 75 are flexible pipes such as a flexible hose.
FIG. 12 illustrates a defoaming device that defoams the liquid that has been sent into the container 92 from the liquid introduction pipe 74 and stored. The container 92 is also connected with a degassing gas suction pipe 76 for connecting the container 92 and a vacuum device (not shown). The gas suction pipe 76 is a flexible pipe and is connected to the upper portion of the container 92. This defoaming device can efficiently degas the liquid in the container 92 by rocking the container 92 by driving the rocking device 1. Further, this defoaming device can easily discharge the liquid in the container 92 that has been defoamed from the container 92 to the liquid discharge pipe 75.
The liquid introduction pipe 74, the liquid discharge pipe 75, and the gas suction pipe 76 are provided with on-off valves 74a, 75a, and 76a.

In the configuration of FIG. 12, a container 92 that does not have an openable / closable lid can be used. For this reason, this structure can be applied suitably also when processing in aseptic conditions is required, such as the manufacture of liquid foods such as beverages and soups.
However, the container 92 may have a lid that can be opened and closed.

  A plurality of liquid introduction pipes 74 may be connected to the container 92 of the defoaming apparatus in FIG. In this case, it is possible to configure a mixing device that mixes the liquid fed into the container 92 from the plurality of liquid introduction pipes 74 in the container 92 by rocking the container 92 by driving the rocking device 1.

11 and 12 may be connected to a gas supply pipe for sending gas into the container in place of the degassing gas suction pipe for connecting the container and the vacuum apparatus. In the case of this configuration, the gas fed into the container from the gas supply pipe can be used to dissolve the liquid in the containers 91 and 92 (utilization as a gas dissolving device).
As the gas dissolving apparatus, a configuration in which a gas suction pipe for defoaming that connects the container and the vacuum apparatus is connected to the container can also be adopted.
In addition, as the gas dissolving device, a configuration that also serves as a mixing device in which a plurality of liquid introduction pipes 74 are connected to the container 92 can be employed.

  In addition, as a mixing apparatus in which a plurality of containers 92, a liquid introduction pipe 74, and a liquid discharge pipe 75 are connected to a container 92 that is rocked by the rocking device 1, the container 92 is connected to a container other than the liquid introduction pipe 74 and the liquid discharge pipe 75. A configuration in which a pipe for supplying or discharging a fluid that is a liquid or a gas is not connected can also be employed.

The present invention is not limited to the above-described embodiment, and can be appropriately changed in design without departing from the gist thereof.
For example, in the above-described embodiment, as the swing drive unit 2, the rotational drive force of the rotational drive source (motor 11 in the illustrated example) given to the drive side rotational unit 2A is driven by the driven side rotational unit 2B via the drive force transmission belt. In this example, the driving-side and driven-side rotating units are synchronously rotated. However, the driving force applied to the driving-side rotating unit 2A from the rotation driving source is transmitted to the driven-side rotating unit 2B. The (driving force transmission unit) is not limited to the driving force transmission belt, and for example, a configuration using a plurality of gears, a shaft drive configured using a plurality of gears and a shaft, and the like can be employed.

Further, the swing drive unit may include three or more rotary units, and the rotary units may be synchronously rotated by a rotary drive source.
However, in terms of downsizing and cost reduction of the entire oscillating device, the oscillating drive unit preferably has a configuration in which a plurality of rotating units are rotated by a single rotational drive source. Further, in the swing drive unit, as a configuration (drive force transmission system) for transmitting the rotational drive force of one rotational drive source to a plurality of rotary units, all the rotary units of the swing drive unit are rotated synchronously. There is no particular limitation as long as it is possible.

The shaft body of the oscillating drive unit may be configured to allow rotation around the axis about the axis of the shaft body on one or both of the rotating member and the top plate of the rotating unit. The configuration is not limited to the configuration in which the lower end of the rotary member can be rotated about the axis and the upper end is fixed to the top plate 8 as in the form. For example, the shaft body has a configuration in which an upper end portion thereof is provided on the top plate so as to be rotatable about an axis and a lower end portion thereof is fixed to a rotating member of the rotating unit, and is provided so as to be rotatable about an axis with respect to the rotating member and the top plate. Any of the configurations described can be employed.
Further, in the rotating member and the top plate of the rotating unit, a structure (shaft for supporting the end (upper end or lower end) of the shaft body in a state in which the shaft body can rotate around its axis and the shaft body extends vertically. The support structure is not limited to a configuration in which the lower end portion of the shaft body is housed and supported so as to be rotatable around the inside of a ring-shaped bearing as in the rotation unit of the above-described embodiment. As the shaft support structure, for example, a configuration using a cylindrical body having an inner peripheral surface on which the outer peripheral surface of the shaft body slides, the end of the shaft body can be rotated around the axis of the rotating member and / or the top plate of the rotating unit. It is also possible to adopt a configuration in which a hole (hereinafter referred to as “shaft housing hole”) for housing is formed and the end of the shaft body is inserted into the shaft housing hole.

  The swing device 1 of the embodiment shown in FIGS. 1, 2, 7 and the like has a configuration in which the center of the disk-shaped top plate 8 is aligned with the rotation axis 12c of the driving side rotation unit 2A as described above. It has become. However, the installation position in the surface direction of the top plate of each rotary unit of the swing drive unit is not particularly limited.

The swing drive unit has a configuration in which the top plate (mounting table) is moved along a circular movement locus, that is, a configuration in which the mounting table is moved (rotated) on the circumference around the vertical axis. The specific configuration is not particularly limited.
The mounting table is not limited to a top plate as long as it is configured as a plate or a plate on which a swing object can be mounted as a whole.

  DESCRIPTION OF SYMBOLS 1 ... Swing device, 2 ... Swing drive unit, 2A ... Rotation unit (primary side rotation unit), 2B ... Rotation unit (driven side rotation unit), 3 ... Auxiliary support unit, 7 ... Machine base, 8 ... Mounting table (Top plate), 8A ... mounting table (mounting table with cover plate), 9 ... swinging object (container), 11 ... rotational drive source (motor), 12 ... drive shaft, 12c ... rotational axis, 13 ... shaft body (First moving shaft), 13c ... (shaft body) axis, 15 ... shaft body (second moving shaft), 15c ... (shaft body) axis, 18 ... rotating member (drive side rotating plate), 25 ... rotation Member (driven rotation member), 25c ... rotation axis, 40 ... case, 40A ... case (lubricant storage container), 41 ... upper plate, 41a ... window, 43 ... receiving member, 44 ... nipple, 50 ... movable support Body, 51 ... post, 52 ... retainer, 52a ... ball hole, 53 ... ball 54 ... upper receiving plate, 91 ... swinging object (container), 92 ... swinging object (container), J ... shaft, K ... rotary member.

Claims (6)

  A base (7), a mounting base (8) provided on the base and on which the swing object (9) is placed, and provided on the base, moving the mounting base in a circular movement locus. The swing drive unit (2) to be moved, and the ball (53) rolling on the upper surface of the receiving member (43) provided on the machine base are provided at the lower portion, and the upper end is attached to the mount table. And a movable support (50) that is movable together with the swinging device (1).   The movable support is a plate-like member having a thickness smaller than the outer diameter of the ball at the lower end of the support column (51) whose upper end is fixed to the mounting table, and the ball on the receiving member is An upper receiving plate (54) having a plate-like retainer (52) formed with a plurality of ball holes (52a) to be rotatably accommodated, fixed vertically to the support column and disposed above the retainer. The swing device according to claim 1, wherein the swing device is placed on a ball.   The rocking device according to claim 2, wherein the retainer has a ring plate shape and is extrapolated to a lower end portion of the column so as to be movable in a direction perpendicular to the axis of the column. In the case (40) having the receiving member at the bottom and attached to the machine base, the upper receiving plate of the movable support and the lower portion from the upper receiving plate are moved along the upper surface of the receiving member. And an auxiliary support unit (3) in which the column of the movable support is passed through a window (41a) opened in the upper plate (41) of the case and protrudes upward from the case. And
The rocking device according to claim 2 or 3, wherein the case has a nipple (44) for injecting lubricating grease from the outside to the inside.   The rocking device according to claim 3 or 4, wherein the case is a lubricant storage container (40A) capable of storing lubricating grease therein. The swing drive unit is provided on the lower side of the mounting table and moves the mounting table in a circular movement locus;
The oscillating drive unit includes a rotation drive source (11) and a rotation axis line on a rotation member (K, 18, 25) that is rotationally driven by a rotation drive force generated by the rotation drive source with a rotation axis in the vertical direction. (12c, 25c) The shaft body (J, 13, 15) which is erected parallel and eccentric to (12c, 25c) is provided on the mounting table, and the rotational driving source is driven from the shaft body to the mounting table. A plurality of rotating units (2A, 2B) capable of transmitting force,
In the plurality of rotation units, the rotation axes of the rotation members are parallel to each other, and the eccentric amounts of the shaft bodies with respect to the rotation axis are aligned with each other, and the shaft bodies are arranged on at least one of the mounting table and the rotation members. On the other hand, it is provided so as to be rotatable about the axis of the shaft body, and all the shaft bodies are rotationally driven collectively by the rotational driving force of the rotational drive source while maintaining the relative positional relationship with each other. The oscillating device according to claim 1, wherein:

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