JPS63296831A - Reciprocating-swiveling-switchover type shaking machine - Google Patents

Abstract

PURPOSE:To obtain the titled shaking machine capable of two different movements by simple mechanisms, at low cost and suitable for, e.g., culture of microorganisms, by making it possible to switch easily from a reciprocating straight-shaking to an eccentric swivel-shaking and vice versa by a simple operation to shift a bearing part of a shake table. CONSTITUTION:A shake table 13 capable of reciprocating motion is mounted on a supporting truck 16 making a forward and backward movement on a machine frame 1 of a shake machine so that the direction of motion of the shake table 13 crosses the direction of movement of the truck 16 at right angles. A bearing part 10 for a driven shaft which makes possible switchover between a reciprocating straight-motion and an eccentric swivel-motion is provided at the center of the shake table. That is to say, by a simple operation, switchover between a reciprocating straight-motion and an eccentric swivel-motion is made possible and accurate data showing each developments and results produced in samples etc. in the both ways of shaking operations can be obtained. Although the machine is a switchover type, magnitude of amplitude can be adjusted by simply moving an eccentric spindle 11 in either ways of shaking operations, so that a machine of simple construction and comparatively low cost can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Application in Industry> The present invention relates to a shaker having both functions of linear reciprocating operation and eccentric rotation operation.

[Problems to be solved by this invention] Conventionally, there are two types of shakers used for shaking culture, etc.: one that operates in a linear reciprocating manner for shaking, and the other that operates in an eccentric rotation for shaking. Therefore, differences in the shaking method may cause differences in the progress and result data of culture samples. Therefore, there may be cases where data from both types of shaking are required for a sample, but there is a problem in that it is difficult to install two types of shakers individually, both in terms of cost and equipment space.

The present invention proposes a shaking machine that can be switched between linear reciprocating operation and eccentric rotation operation with a simple operation, has a simple structure, and can therefore be provided at a relatively low cost. This is an attempt to solve the following problems.

<Structure of the Invention> The present invention provides a shaker machine in which a shaking table capable of reciprocating in a direction orthogonal to the direction of movement of the support truck is mounted on a support truck 42 that reciprocates the body of a shaking machine in a straight line. This shaking machine is of a reciprocating and rotating type shaking machine, characterized in that a bearing part of a power receiver +J that can be switched between linear reciprocating operation and eccentric rotating operation is provided in the center of the bed.

<Example> Examples will be described below with reference to the drawings.

A motor 2 with a reduction gear is installed in one corner of the box-shaped body 1, and a pulley 4 that receives the power of the motor 2 through a V heald 3 is installed in the center of the body 1.
A rotating shaft 7 supported at 6 is provided. The rotating shaft 7 has an upper end protruding from the top plate 1a-J- of the machine body 1, and supports a horizontal rotating disk 8. The eccentric shaft 11 with the hair ring bearing 1O is inserted into the fixing part 4A9 with the elongated hole 9a attached to the 1-radius side of the rotating disk 8. The eccentric shaft 11 moves within the elongated hole 9a so that the amount of eccentricity can be adjusted. 12 is a fixing nut.

The shaking table 13, which is rectangular in plan view and placed on the aircraft body 1, has an oblong bearing hole 14 in its center, and has hanging walls 1 on all sides.
5 is folded down, and the opposing side walls 16a of a slightly smaller support cart 16 placed below the shaking table 13.
, I6a is mounted on a guide roller 17 attached to four outer end portions with the upper half thereof exposed. In addition,
At this time, the guide rollers 17 are positioned on both longitudinal sides of the bearing hole 14.

The support cart 16 has a bearing hole 18 in the center that has the same shape and direction as the bearing hole 14 of the shaking table 13, and has a bearing hole 18 in the same shape and direction as the bearing hole 14 of the shaking table 13.
Wheels 19 for running are provided at four locations on the inner end under the non-mounting side walls 16b and 16b of the machine body 1 with the bearing 10 of the eccentric shaft 11 fitted in the bearing hole 18 and the bearing hole 14. Rail 20°20 attached to top plate 1al2
It is published in ``2''.

Reference numeral 21 denotes a thin plate-shaped switching plate that is attached to one longitudinal side of the bearing hole 14 of the shaking table 13 so as to be able to move forward and backward.
The bearing 10 is located at the center position where the
It has 3. Guide rails 24 are provided on both sides of the switching plate 21.
．． A connecting rod 25 attached to the rear end of the connecting rod 24 is connected at a fulcrum 26 to one of the operating rods 27 which is pivoted to the shaking table 13, and is connected to an electromagnetic cylinder connected to the other of the operating rods 27. Due to the extension of the rod 28a of 28, the switching plate 21
moves forward toward the bearing hole 14 to fix the bearing 10 in the center of the bearing hole 14, and releases the bearing 10 by reverse operation.

Note that the shaking table I3 is normally located at the center of the support cart 16 by the tension of spring parts E'29 and 29, each of which has one end fixed under the guide rollers 17 and 17 on one side of the support cart ■6. [It is designed so that it does not swing above the first coke. Reference numeral 30 denotes a removable pedestal for mounting containers such as flasks.

<Operation of the Invention> Next, an example of the operation of the linear reciprocating operation and the eccentric rotation operation by the switching operation of the present invention will be explained.

(1) When using the inventive shaker for linear reciprocating shaking, use the changeover switch (not shown) as shown in Figure 4.
By this operation, the rod 28a of the electromagnetic cylinder 28 is retracted, the switching plate 21 is moved back, and the -4= fixation of the bearing 10 is released. The motor 2 is driven to rotate the rotary shaft 7, and the eccentric shaft 11 fixed on the rotary disk 8 is rotated with its eccentric width as a radius. Then, the bearing In can freely move within the bearing holes 14 and 18 of the support cart 16 and the shaker 13, so that the bearing In can move freely within the bearing holes 14 and 18 of the orbit of the eccentric shaft 10, as shown in the explanatory diagram of FIG. The force acting in the longitudinal direction of .18 does not act on either the support cart 16 or the shaking table 13, and only the force acting in the other direction acts. However, the movement of the support cart 16 is on the rail 2.
0, all forces acting in directions other than the longitudinal direction of the bearing holes 14 and 18 are converted into forces that actuate the support cart 16 linearly. The linear reciprocating operation with the amplitude of rotation diameter of 11 is repeated. Note that the shaking table 13 does not swing due to the tension of the spring members 29 and 29, and is supported by the support cart J.
It is integrally supported at the central position on the top of 6.

(2) When using the shaker of the present invention for eccentric rotation shaking, as shown in FIG.
By this operation, the rod 28a of the electromagnetic fringe 28 is extended, the switching plate 21 is advanced toward the bearing hole J4, and the bearing 0 is fixed at the center of the bearing hole 14. Since the switching plate 2I has a sliding slope 22.22 with an opening 1 angle at the front part, even if the bearing 10 is off the center position, the switching plate 2
1 is smoothly guided to the bearing fixing part 23 as it moves forward.

When the motor 2 is driven, the shaking table I3 with the bearing 10 fixed in the center by the switching plate 21 performs rotational shaking in the same orbit as the eccentric shaft.
As shown in the figure, the linear reciprocation of the support cart 16 as described above and the shaking table 13 supported on the support cart 16 by the guide rollers 17 operate in a direction perpendicular to the direction of movement of the support cart 16. This is achieved through a combination of vertical and horizontal linear reciprocating motion.

The spring members 29 and 29, which act to integrate the shaking table 13 and the support cart 16 during linear reciprocating shaking, are set to have a tension lower than the rotational force of the eccentric shaft 11, so that the shaking table J3 This will not interfere with the operation of the support cart IfF.

In addition, in both the linear reciprocating shaking and the eccentric rotational shaking described below, the magnitude of the amplitude can be adjusted by moving the eccentric shaft 11 inserted into the fixing member of the rotating disk 8'' within the elongated hole 9a. Just that is enough.

Note that the means for fixing the eccentric shaft to the center of the shaking table is not limited to the switching plate in the embodiment, but may be replaced by other structures such as a clamping method using two bars from both sides.

<Effects of the Invention> (2) The shaking machine of the present invention has a support cart in which an eccentric shaft is supported by an oblong bearing hole, and a shaking table, which can be easily operated by simply switching the bearing part of the shaking table. The ability to selectively use linear reciprocating shaking and eccentric rotational shaking provides the advantage of being able to obtain accurate data on the progress and results of both shaking operations for samples, etc. In addition, during eccentric rotation shaking, the supporting cart and shaking table, which operate separately, are operated by a single eccentric shaft that is a single power source, so even though it is a switching type shaking machine, it is possible to Even in the case of shaking, the amplitude can be adjusted by simply moving and adjusting one eccentric shaft. 1: The structure can be simplified and failure factors can be minimized as much as possible, while manufacturing costs can also be kept low. Therefore, it is possible to provide a shaking machine that is relatively inexpensive and easy to handle.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional front view of an embodiment of the present invention, Fig. 2 is a front view with the pedestal removed, Fig. 3 is a plan view of the same, and Fig. 4 is a diagram of the switching plate during linear reciprocating shaking. FIG. 5 is a partial plan view showing the position, and FIG. 5 is an explanatory diagram showing the operational relationship between the eccentric shaft and the bearing hole. FIG. 6 is a partial plan view showing the position of the switching plate during eccentric rotation shaking. Figure 7 is an explanatory diagram showing the operational relationship in which the shaking table performs eccentric rotation shaking due to a combination of the linear reciprocating motion of the support cart and the orthogonal linear reciprocating motion of the shaking table, I is the machine body, 2 is the motor,
3 is a belt, 4 is a pulley, 5.6 is an upper and lower bearing, 7 is a rotating shaft, 8 is a rotating disk, 9 is a fixing member, 1
0 bearing, 11 eccentric shaft, 12 nut, 13 shaking table, 14 bearing hole, 15 hanging wall, 16 support cart, 17 guide roller, 18 bearing hole, 19 wheel, 20.2
0 is the rail, 21 is the switching plate, 22.22 is the sliding slope,
23 is a bearing fixing part, 24° 24 is a guide rail, 25 is a connecting rod, 26 is a fulcrum, 27 is an operating rod, 28 is an electromagnetic cylinder, 29 and 29 are spring members, and 30 is a frame. 4th - Opening 50 10, // No. 7 $7 θ, /1

Claims (1)

[Claims] (1) A shaking table capable of reciprocating in a direction perpendicular to the direction of movement of the support cart is mounted on a support cart that reciprocates in a straight line on the body of the shaking machine, and a straight line is attached to the center of the shaking table. A shaking machine capable of switching between reciprocation and rotation, characterized in that it is equipped with a power receiving bearing section that can switch between reciprocation operation and eccentric rotation operation.