JP2631863B2 - Rocking mixer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an oscillating mixer for uniformly mixing various powders and granules.

<Conventional technology> As a swinging mixer, the lower part of a container fixed to the body is a rubber cylinder, and the lower end of the rubber cylinder is attached to an inclined rotating disk provided on an inclined crank that is rotationally driven by a vertical drive shaft. The type in which the rubber cylinder of the container is bent and deformed by swinging the turntable, and the material in the container is mixed, is shown in Japanese Utility Model Publication No. 52-50.
No. 063 and Japanese Utility Model Publication No. Sho 55-32110.

<Problem to be Solved by the Invention> In the above-mentioned conventional rocking mixer, the rubber cylinder at the lower part of the container is a cylindrical shape without a bottom. Bending inward and along the peripheral edge of the upper surface of the inclined rotating disk, then applying a mounting disk of the same size as the inclined rotating disk from above and sandwiching it between the two disks. A number of bolts are passed around the lower edge in the circumferential direction and tightened with nuts.

Therefore, it takes a great deal of time to bend inward substantially uniformly in order to make the peripheral edge of the lower end of the rubber cylinder follow the peripheral edge of the inclined rotating disk inclined with respect to the horizontal. The work of tightening a large number of bolts passing through the lower edge of the inward lower end of the rubber cylinder sandwiched between the two panels to the lower surface of the inclined rotating disk with a nut is very difficult because the rubber cylinder and the inclined rotating disk block the work. It takes time.

In addition, during operation, the rubber cylinder is violently bent and deformed by the swing of the tilting rotary plate, so a crack is generated from the hole through the bolt at the bottom edge of the inwardly bent lower end, and it is torn. It becomes impossible and the service life is relatively short. Then, when it becomes unusable, it is necessary to disassemble and remove it as in the case of mounting and replace it with a new rubber cylinder.

<Means for Solving the Problems> In view of the above, the swing mixer of the present invention is provided with a bottom that is provided at the lower end of the rubber cylinder and that is in contact with the upper surface of the inclined rotating disk, and a bolt attached to the inclined rotating disk inside the bottom. A mounting device including a nut for screwing the nut is embedded.

And, in order to improve the durability of the rubber cylinder, a downwardly curved bulge is provided in advance at the peripheral edge of the bottom of the rubber cylinder, or the bulge is provided between the bottom and the lower surface of the rubber cylinder and the upper surface of the inclined rotating disk. It is preferable to interpose a rubber protection plate slightly larger than the diameter of the inclined rotating disk.

Also, in order to align the nut embedded in the bottom of the rubber cylinder with the bolt insertion hole of the inclined rotating disk, a positioning projection should be provided on one of the inclined rotating disk and the bottom of the rubber cylinder, and a positioning hole should be provided on one of the two. Is preferred.

<Embodiment> In the illustrated embodiment, reference numeral 1 denotes a U-shaped body, and a turning frame 2 is mounted on the left and right side frames 1L and 1R so as to be rotatable about a horizontal axis 1 '. The turning frame 2 comprises a box-shaped upper case 4 for supporting the container 3 and a lower case 6 for accommodating a motor 5 as a driving device. The upper end of the lower case 6 is open to the lower surface of the upper case 4. The motor 5 is mounted on a cross beam 4 'provided laterally at the bottom of the upper case, and the drive shaft 5' of the motor protrudes toward the lower center in the upper case and faces directly upward. Attach the tilt crank 7 to this drive shaft,
An inclined rotating disk 8 is rotatably mounted on the inclined shaft 7 '.

The upper case has an opening on an upper surface for projecting the container 3 upward. The container 3 is substantially the same as an upper cylindrical body 9 made of a metal, for example, a stainless steel plate, which is erected on the upper surface of the upper case with a flange projecting from the outer periphery of the lower end placed around the opening, and a flange 9 'of the cylindrical body. It is made of a rubber cylinder molded of rubber, for example, silicone rubber, having an outer diameter integrally provided with a flange 10 'sandwiched between the flange 9' and the periphery of the opening on the upper surface of the case.

In accordance with the present invention, the rubber cylinder has a bottom 11 which closes the lower end and which is in contact with the upper surface of the inclined rotary disk 8. A mounting device 12 for the inclined rotating disk is embedded in the inside of the bottom 11 when the rubber cylinder 10 is formed, so that the thickness of the bottom 11 is middle and high.

The mounting device 12 includes, for example, four cap nuts mounted at equal intervals in the circumferential direction on a center pillar 13 vertically positioned at the center of the bottom 11 and a disk 14 fixed in a flange shape in the middle of the center pillar. A positioning hole 17 is formed at the lower end of the center column, and the positioning hole 17 is fitted in a positioning projection 16 protruding from the center of the inclined rotating disk. Of course, the center column 13 and the lower surface of each nut 15 are the bottom 11 of the rubber cylinder.
Is exposed on the same surface on the lower surface of the. And in this embodiment,
In order to erect a rod-shaped stirring member 18 at the center of 11, the upper end of the center column 13 having a screw hole is exposed on the upper surface of the bottom 11, but when it is not necessary to attach the stirring member 18, the center column 13 The upper end may be located in the bottom thickness. In addition, holes 14 'are formed in the disk 14 in some places, and upper and lower rubbers of the disk forming the bottom 11 are connected through the holes 14', so that the fixing strength of the disk 14 inside the bottom is secured. Is preferably increased.

In order to attach the rubber cylinder 10 to the inclined rotating disk 8, before fixing the upper cylindrical body 9 to the upper surface of the upper case, the positioning hole 17 at the lower end of the center column 13 exposed on the lower surface of the bottom 11 is positioned. The bottom 11 is brought into contact with the upper surface of the turntable by fitting into the projection 16, and the flange 10 ′ is applied to the periphery of the opening of the upper case, and each nut 15 exposed on the lower surface of the bottom 11 is opened on the inclined turntable 8. The rubber cylinder 10 is distorted according to the bolt insertion hole of the same arrangement, and each nut is inserted through the bolt insertion hole from under the inclined rotating plate.
Screw in bolt 19 to 15 and tighten. In this case, the positioning projection 16 and the hole 17 are formed in a quadrangular pyramid shape, and the hole 17 is
It is preferable that the nut 15 is set so as to automatically communicate with the bolt insertion hole of the inclined rotating disk when the nut 15 is fitted. Projection 16 and hole 17
The reason for making the square pyramid is that there are four nuts 15. If the number of nuts 15 is three or six, the number of sides of the pyramid is appropriate according to the number of nuts, such as triangular pyramid. Set forth in

Tightening is easy because the number of bolts is small and it is not necessary to bend the lower circumferential part of the cylindrical rubber cylinder inward as in the conventional case. Further, since the bolt is screwed into the nut 15 embedded in the bottom 11, the bottom is not broken even by the stress applied intensely during operation.

When the bottom 11 of the rubber cylinder is attached to the inclined rotary disk 8, the bottom 11 bulges downwardly curved to the periphery, so that the bottom 1 of the bottom of the rubber cylinder 1
By forming a curved downward bulge on 1 'in advance, the durability of the rubber cylinder is further improved.

Then, at the time of mounting, as shown in FIG.
When a rubber protection plate 20 having a diameter slightly larger than that of the disk is laid and the rubber cylinder bottom 11 is mounted thereon, the outer peripheral portion of the inclined rotary disk 8 comes into direct contact with the rubber cylinder bottom 11 during operation. Can be prevented from being damaged or worn.

When the bottom of the rubber cylinder is attached to the inclined rotating disk 8 in this manner, the flange 9 'of the upper cylindrical body is overlaid on the flange 10' of the rubber cylinder,
The upper case is screwed into the screw holes on the upper surface through the bolts 21 through 10 'and 9'.

In the first embodiment shown in FIGS.
Has an extension 22 extending upwardly along the inner circumference of the body.
If necessary, the extension 22 projects slightly upward from the upper cylindrical body 9, and the projection 22 ′ is turned outward as shown in FIG.
The upper end of the upper cylinder may be wrapped. The extension 22
Is vulcanized on the inner periphery of the upper cylindrical body 9 or bonded with an adhesive,
The upper cylindrical body 9 and the rubber package 10 may be integrated.

In addition, the rubber cylinder 10 is not provided with the above-described extension 22 and
The upper cylindrical body 9 may be provided with a rubber coating layer 23 covering the inner periphery thereof and the lower surface of the flange 9 'as shown in the embodiment of FIG. In this case, a cylindrical portion 23 ′ extending along the inner peripheral portion of the rubber cylinder 10 is suspended from the rubber coating layer 23 so that the rubber coating layer 23 on the lower surface of the flange 9 ′ and the flange 10 ′ of the rubber cylinder 10 The material to be mixed can be prevented from entering between the upper surface and the rot and deteriorating.

Further, unlike the embodiment of FIG. 7, the rubber coating layer 23 may not be provided on the upper cylindrical body and its flange.

During operation, the upper end of the upper cylindrical body 9 is turned upward, the upper end is closed with a lid 24 as necessary, and the rubber cylinder of the container is bent and deformed by the swinging operation of the tilting reselection board based on the rotation of the tilting crank. As a result, two or more kinds of powder and granular materials in the vessel can be efficiently and uniformly mixed. When the materials are mixed, the turning frame 2 is turned over by turning the mounting shaft 26 'of the worm 26 meshing with the worm wheel 25 fixed to the horizontal axis by a handwheel 27 or a motor provided on one of the left and right side frames. Then, the mixed material in the container is dropped and received by another container or chute.

<Effects of the Invention> According to the present invention, it is possible to provide an oscillating mixer in which the rubber cylinder is extremely easily attached to and detached from the inclined rotary plate, and the service life of the rubber cylinder is long.

[Brief description of the drawings]

1 to 4 show an embodiment of the oscillating mixer of the present invention. FIG. 1 is an overall front view, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 4 is a front view showing a part of the molded state of the container in cross section, FIG. 5 is a plan view showing a part of FIG. 4, and FIG. 6 is a sectional view of the oscillating mixer of the present invention. FIG. 7 is a front view in which a main part of another embodiment of the oscillating mixer of the present invention is also a cross-sectional view. In the figure, 1 is an airframe, 3 is a container, 7 is an inclined crank, 8 is an inclined rotating disk, 9 is an upper cylindrical body of the container, 10 is a rubber cylinder, 11 is a bottom of the rubber cylinder, and 12 is embedded inside the bottom. The mounting device, 15 is its nut, 16 is a positioning projection, 17 is a positioning hole, 19 is a bolt screwed into the nut, and 20 is a protection plate.

Continued on the front page (72) Inventor Hiroshi Kaneko 631 Hongo, Middle East, Sugito-cho, Kitakatsushika-gun, Saitama Prefecture, Tokyo, Chiyoda Giken Kogyo Co., Ltd. Tokyo Plant (56) References Real Open Showa 61-33625 (JP, U)

Claims (4)

(57) [Claims] A lower portion of a container fixed to an airframe is a rubber cylinder, and a lower end of the rubber cylinder is mounted on an inclined rotating disk provided on an inclined crank rotatably driven by a driving device. In a swinging mixer that bends and deforms a rubber cylinder of a container by movement and mixes the material in the container, a bottom is provided at a lower end of the rubber cylinder to be in contact with an upper surface of the inclined rotating plate, and an inclined rotation is provided inside the bottom. An oscillating mixer, wherein a mounting device including a nut for screwing a bolt to be mounted on a panel is embedded. 2. The oscillating mixer according to claim 1, wherein a downwardly curved bulge is provided in advance at the periphery of the bottom of the rubber cylinder. 3. The oscillating mixer according to claim 1, wherein a diameter of the inclined rotary disk is between a lower surface of a bottom of the rubber cylinder and an upper surface of the inclined rotary disk. An oscillating mixer characterized by a rubber protection plate that is slightly larger than the protection plate. 4. A rocking mixer according to claim 1, wherein a positioning projection is provided on one of the inclined rotating disk and the bottom of the rubber cylinder, and the other is provided on the other. An oscillating mixer, comprising a positioning hole into which the positioning protrusion is fitted.