JPH0143157Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a device having stirring and cleaning functions, that is, a device that stirs on the one hand and cleans substances that adhere to screws or shafts due to the stirring on the other hand. It is something.

(Prior Art) The work called stirring is performed in various fields, and in some fields it is automated, while in others it is still performed manually.
Here, we will explain the case of making colored paste used for dyeing. Water, base paste, and dye must be mixed uniformly to make colored paste, and stirring is one of the important operations. In addition to uniformizing the dye, the amount of water as the mixed component is controlled in order to adjust the viscosity of the colored paste, but uniform viscosity cannot be obtained unless thoroughly stirred.

However, in this field, the stirring is done manually, which takes a very long time, and in other words, it can be said that automation is difficult. That is, when stirring colored pastes of the same color, automation can be easily performed, but when colors change sequentially, the same stirring device cannot be used as is, and must be cleaned for each color. However, colored glue is not just dye dissolved in water, but also contains a highly viscous glue, and it is not possible to completely remove the colored glue that has adhered in the previous process by simply rotating a propeller in a water tank. This is one of the major reasons why automation has been hindered to this day.

In actual manual stirring work, a stirring rod with a propeller attached to the shaft is used for stirring, but in order to remove the colored glue that has adhered to it during stirring, the stirring rod is rotated in a water tank to remove the colored glue that has adhered to the propeller. Can be easily removed. However, since it is difficult to remove the colored glue that has adhered to the shaft, the reality is that it is rubbed off with a scrubbing brush or the like.

(Problems to be Solved by the Present Invention) In this way, when stirring highly viscous sticky substances such as colored paste, it is possible to stir the sticky substances that have adhered to the side walls and bottom of the stirring container and to remove the sticky substances that have adhered to the stirring rod. Removal of sticky substances is not easy, and it is a labor-intensive task even when done manually as well as automatically. The present invention was developed with the aim of solving these problems, and provides a device that automatically stirs highly viscous fluids such as colored glue, and also automates the removal of substances to be stirred that adhere to the stirring process. It is something to do.

(Means for solving the problem) The device according to the present invention is equipped with a stirring section and a cleaning section, in which the stirring rod performs stirring work on one side, and the sticky substance adhered to it due to stirring in the previous process is used on the other hand. The stirring rod will be replaced automatically. In other words, after the sticky substance adhering to the stirring rod is completely removed by washing, the same stirring rod is alternately used in the stirring tank and the cleaning tank so that it can be used for stirring in the next step.

Therefore, in the stirring section, a stirring rod to which a propeller is attached is rotated and rotated about the central shaft of the stirring tank. Furthermore, the stirring rod also moves up and down at the same time, giving a movement similar to actual manual work to evenly stir the entire area inside the tank.

Here, the turning radius of the stirring rod changes automatically according to the size of the stirring container so that the distance between the wall surface of the stirring container and the propeller is uniform, and the vertical movement distance also changes. Capacity of stirred material (height)
automatically determined by

In addition, when moving the stirring rod up and down, in order to prevent sticky substances attached to the stirring rod from scattering outside the stirring container due to centrifugal force, a net made of easily washable wire or the like is placed around the stirring rod. They are arranged and attached at equal intervals within a certain radius.

The diameter of the wire is 2 to 5 mm, preferably about 3 mm, and the cross-sectional shape of the round bar is not limited to a circular shape, but may be any shape that can be easily cleaned.

On the other hand, in the cleaning section, sticky substances adhering to the stirring rod are cleaned, but in this case as well, sufficient cleaning cannot be achieved simply by rotating the stirring rod within the cleaning tank. In other words, when a stirring rod is placed in a cleaning tank filled with water and rotated, a vortex is formed around the stirring rod, and the sticky substances adhering to the propeller are washed away.
In the central shaft portion, the surrounding cleaning liquid rotates together with the shaft, and the relative speed between the shaft surface and the cleaning liquid is always small, making it impossible to remove sticky substances adhering to the shaft. Therefore, in the cleaning section, the stirring rod not only rotates, but also eccentrically rotates with a fixed radius from the center of the vortex flow of the cleaning liquid, and moves the shaft in a place where the swirling flow velocity is relatively high, and the shaft is moved by the swirling flow. is being washed. Further, the scattering prevention device composed of a round bar is also cleaned by the swirling flow, and there is no need to rotate the scattering prevention device itself. When the above-mentioned stirring and washing are completed, the stirring rod is lifted from both tanks, rotated to a predetermined position, and lowered into the stirring tank and washing tank again.

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the stirring and cleaning device according to the present invention will be described in detail based on the drawings.

(Example) FIGS. 1 and 2 show one embodiment of the stirring and cleaning device according to the present invention. In the figure, the stirring tank 1 and the cleaning tank 2 are arranged at the same distance on the left and right with the main column 3 as the center, and a stirring rod 4 with a propeller 6 attached to the tip of the shaft 5 is inserted into both tanks 1 and 2. has been done. The stirring rod 4 is attached to a box 7, and is given rotation and rotation within a certain radius by a rotating motor 8 and a turning motor 9. As shown in FIG. 3, details of the stirring bar shown in FIG. 1, wires 21, 21, . The upper fixing ring 22 is attached to the box 7. The above wire 21, 21
The relative positional relationship between the stirring rod 4 and the stirring rod 4 is determined by taking into consideration the scattering of sticky substances attached to the shaft 5 rotating at a constant speed, and is arranged within a constant radius from the center of the shaft 5. cage, wire 21
The length of the stirring rod 4 is such that it does not exceed the upper surface of the stirring tank 1 when the stirring rod 4 rises. The above-mentioned rotating and turning device is constructed in the box 7, and is generally a mechanism using links and belts, so it is not necessary to explain it again, but it uses a planetary gear mechanism shown in Fig. 4. The turning radius R can be adjusted by That is, the motor gear 23 directly connected to the motor is connected to the stirring rod 4 via the intermediate gear 24.
The motor gear 23 and the intermediate gear 24 are in mesh with each other through a link 26, and the propeller gear 25 and the intermediate gear 24 are in mesh with each other through a link 27.
Here, if the motor gear 23 is rotated clockwise, the intermediate gear 24 will be rotated counterclockwise, and the propeller gear 2 will be rotated counterclockwise.
5 rotates in a clockwise direction, but since the intermediate gear 24 rotates around the motor gear 23 as a planetary gear, the rotation can be restricted, so that the propeller gear 25 rotates with a radius R. Of course, in this case, the relative positional relationship θ between the links 27 and 26 remains the same, and by changing the intersecting angle θ between the links 26 and 27 according to the size of the stirring tank 1, the motor gear 23 and the propeller gear The distance R between 25 can be increased or decreased, and the motor gear 2
Turning radius R of turning while rotating around 3
can be adjusted. By the way, the box 7 equipped with these stirring rods 4, motors, and gears
slides in the vertical direction, and this vertical movement is performed by an air cylinder 14. Of course, it is also possible to use a screw mechanism or a rack and pinion mechanism for the vertical movement without using the air cylinder 14. By the way, these are attached to supports 11, and the same ones are attached symmetrically around the main pillar 3, and both supports 11, 11 are attached to the rotating base 1.
It is fixed at 5. That is, the rotating base 1
5 is connected to a rotary actuator 16 and can rotate intermittently by a predetermined angle (180 degrees in this embodiment). Moreover, the rotary actuator 1
6. The rotating base 15 and both supports 11, 11 fixed to the rotating base 15 are mounted on a base 17, and the base 17 is attached to the air cylinder mounted inside the main column 3. 18 also moves up and down, but guide rods 19, 19 extend downward from the base 17 on both sides to prevent rotation during the up and down movement, and guide rods 19, 19 are guided by bearings 20.
Therefore, this device uses the air cylinder 18 to move the entire body except the main column 3 up and down, and the support 11
An air cylinder 14 attached to the box 7 and the stirring bar 4, each equipped with a rotation motor 8 and a swing motor 9, are moved up and down.

(Function) The function of the stirring and cleaning device constructed in this way is as shown in FIG.
4, the base 17 and box 7 are lowered to the lowest position, the propeller 6 of the stirring rod 4 is lowered to the bottom of the stirring tank 1 and the cleaning tank 2, and first, rotation is started while rotating the propeller 6 at a low speed. After the rotational speed increases, only the stirring rod 4 in the stirring tank 1 will repeatedly move up and down by the operation of the air cylinder 14.
Adjust the upper limit so that it does not rise above the liquid level in the tank. However, since the stirring rod 4 in the cleaning tank 2 does not need to move up and down, it is controlled so that it does not move up and down. When sufficient stirring is completed, the propeller 6 is lifted above the liquid level and the liquid adhering to the propeller 6 is shaken off. Therefore, the propeller 6 is positioned within the tanks 1 and 2 and raised a short distance above the liquid level to prevent it from scattering outside the tanks 1 and 2. When the adhering liquid is completely shaken off, the rotation of the stirring rod 4 is stopped and the air cylinder 1 is turned off.
4 and 18, the box 7 and the base 17 are raised to the highest level, and the rotary actuator 16
The rotation base 15 is rotated by the operation of , and both stirring rods 4 are lowered into the stirring tank 1 and the cleaning tank 2, respectively.

This device automatically repeats the above action in a fixed cycle, and can obtain the effects described below.

(Effects) (1) The stirring rod 4 rotates in the stirring tank 1 while circling the entire area inside the tank, and the radius of rotation can be adjusted according to the size of the stirring tank 1, and it can also move up and down. , it is possible to uniformly stir high viscosity fluids such as colored paste inside. In addition, when the sticky liquid adhering to the stirring bar 4 is removed by rotation after stirring, a net made of wire arrays is provided around the shaft 5, so that it does not scatter into the surrounding area and helps to preserve the working environment. is also excellent.

(2) In the cleaning tank 2, the stirring rod 4 coated with the sticky liquid is not only rotated but also given a swirl at the same time, so the flow circulating in the cleaning tank 2 collides with the shaft 5, causing the shaft to rotate. 5 can be completely washed and removed, and the stirring and washing can be completely automated.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the stirring and cleaning device according to the present invention, and Figure 1 shows a front view.
FIG. 2 each shows a plan view. Also the third
The figure shows details of the stirring section, and FIG. 4 shows an example of a mechanism for turning the stirring rod while rotating. 1... Stirring tank, 2... Cleaning tank, 3... Main pillar, 4
... Stirring bar, 5... Shaft, 6... Propeller,
7... Box, 8... Rotating motor,... Rotating motor, 11... Support, 14, 18... Air cylinder, 15... Rotating base, 16... Rotary actuator, 17... Base, 19... ... Guide rod, 20 ... Bearing, 21 ... Wire, 22 ... Fixed ring, 23 ... Motor gear, 24 ... Intermediate gear, 25 ... Propeller gear, 26, 29 ... Link.

Claims (1)

[Scope of utility model registration request] A stirring rod with a propeller attached to the tip of the shaft is configured to be able to rotate while rotating, and the radius of rotation can be adjusted according to the size of the stirring container, so that sticky substances attached to the stirring rod can be removed from the stirring container. In order to prevent the stirring rod from scattering outside, a net made of wire or the like arranged at equal intervals within a certain radius around the stirring rod is fixed to the stirring rod support frame, rotates together with the stirring rod, and is used as the main It is mounted on a rotating base symmetrically around the pillar, and the rotating base is rotatably supported and attached by a rotary actuator or the like mounted on the base, and the base is further mounted on the main pillar. Connected to a fixed air cylinder, etc., and attached to the main column so that it can move up and down, both of the stirring rods can be rotated and rotated in the stirring tank and cleaning tank, and can be moved up and down and rotated by a rotary actuator, etc. A stirring and cleaning device characterized in that the stirring rod is cyclically exchanged between the stirring tank and the cleaning tank.