JPH0451856Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a mixer for mixing fertilizers, concrete materials, etc.

(Prior Art) Conventionally, a mixer of this type is shown in FIG. 5 and is well known. This mixer has an opening 4 in the body 3 of a rotary drum 2 whose axis is placed horizontally and is pivotally mounted on a support 1, and one end is connected to the opening 4 by a pivot. Lid 6 with fitting 5
The other end of the lid 6 is detachably attached to the rotary drum 2 by means of a fixing fitting 7.
represents sprocket, motor, chain (not shown)
It can be rotated through. Further, stirring blades 8 are fixedly installed on the inner peripheral surface of the rotating drum 2.

When mixing, first open the lid 6 and put the mixture A through the opening 4, then close the lid 6 with the fixing fitting 7, and then rotate the rotary drum 2 with the motor to mix the mixture A. mixed. After removing the fixture 7 and opening the lid 6, the mixture A is discharged with the opening 4 facing downward.

(Problem to be solved by the invention) However, in the prior art, the mixture A
There is a problem in that the fixing metal fitting 7 must be operated when taking in and out, and handling is extremely complicated.

The present invention has been made based on the above-mentioned problems, and an object of the present invention is to provide a mixer that allows easy loading and unloading of materials to be mixed.

[Structure of the invention] (Means for solving the problem) An opening 14 through which the mixture A can enter and exit is formed in the rotating drum 11, and a cover 19 is attached to the rotating drum 11 so as to cover the opening 14. Installed internally.

(Function) When the rotating drum 11 is rotated in one direction after the mixed material A is introduced through the opening 14, the mixed material A is transferred to the rotating drum 11 without being discharged from the opening 14.
On the other hand, when the rotating drum 11 is reversed, the mixture A can be discharged from the opening 14.

(Embodiment) Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

Reference numeral 11 denotes a cylindrical rotating drum that is mounted on a frame 12 with its axis horizontally disposed. form. This opening 14 is provided substantially parallel to the radial direction of the rotating drum 11. This opening 14 is provided with a lid 15, and one end of this lid 15 is attached to the mounting shaft 1 near the axis of the opening 14.
6, the other end is a free end, and an arm portion 1 is attached to the end of the mounting shaft 16 that protrudes from the side plate 14.
7 are fixed perpendicularly. Then, one end of the bullet 18 is connected to the arm portion 17, and the other end of the bullet 18 is connected to a proper position on the side plate 14, and the lid 15 is biased to close the opening 14, or the lid 15 will be described later. It is provided in such a way that it can be fixed attached to the cover plate, or can be selectively retracted when closed.

Reference numeral 19 denotes a cover plate which is installed diagonally inward to cover the opening 14, with one end 19A extending to the back side of the opening 14 and the other end 19B extending to the body 13.
It connects to the inside of the rotating drum 11 and covers the inside of the opening 14 . The part exposed on the outside of the cover plate 19 is a lid part 20 for inspection that can be opened and closed, and this lid part 20 has one end 20A pivoted thereto and the other end 20B secured to the body part 13 by a fixing metal fitting 21. Detachably fixed. Further, a driven sprocket 23 is fixed to a rotating shaft 22 horizontally disposed in the center of the rotating drum 11. 24 is a mixing blade installed inside the rotating drum 11.

The pedestal 12 is provided with a support 28 via pillars 27 on both sides of a base plate 26 provided with wheels 25, and a bearing 29 for supporting the rotating shaft 22 is fixed to the support 28. An inclined plate 30 is provided above. There is also a commercial power supply (100VAC) on the base 26.
A drive sprocket 34 is provided via a speed reducer 32 by a motor 31 that supplies the motor 31, and a chain 35 is suspended between the drive sprocket 34 and the driven sprocket 23. Note that 36 is a control device that controls the motor 31.

Next, the operation of the above structure will be explained.

First, when the lid 15 is lifted, the lid 15 is urged toward the lid portion 20 by the bomb 18 as shown by the two-dot chain line in FIG. 1, and the opening 14 is opened. Then, the mixture A such as fertilizer is introduced through the opening 14. Next, when the lid 15 is closed, the lid 15 is urged to open by the bullet 18. Next, when the switch of the control device 36 is opened, the motor 31
is rotationally driven, and the rotational force rotates the rotary drum 11 counterclockwise through the reducer 32, drive sprocket 34, chain 35, and driven sprocket 23. Therefore, as shown in FIG. 3A, the mixture A
is always located on the back side of the opening 14 and can be mixed as the rotary drum 11 rotates. At this time, the material to be mixed A is located at the back side of the opening 14, so it is not discharged from the opening. Further, when the opening 14 is rotated from the upper side to the lower side, the mixture A is placed on the cover plate 19 and can be mixed without being discharged from the opening 14.

After mixing in this way, when the motor 31 is manually or automatically reversed to rotate the rotary drum 11 clockwise, the mixture material A flows through the opening 14 as the rotary drum 11 rotates, as shown in FIG. 3B. The to-be-mixed material A is sent to the side, and the lid 15 is opened against the biasing force of the bomber 18 to mix the mixture A.
falls onto the inclined plate 30. At this time, the point at which the mixed material A falls is slightly in front of the rotating drum 11 below. That is, in order to open and close the lid 15, the bullet 18 is required.
While the contact pressure increases, the rotating drum 11 rotates, and as a result, the mixture A falls toward the front side.

As described above, the opening 14 is formed in the body 13 of the rotating drum 11, and one end 19A of the cover plate 19 that covers the opening 14 is extended inside the rotating drum 11, while the other end of the cover plate 19 is By connecting the end 19B to the inner circumferential surface of the rotating drum 11, when the rotating drum 11 is rotated counterclockwise, the mixture A
can be mixed without being discharged from the opening 14,
On the other hand, if the rotary drum 11 is rotated clockwise after mixing, the mixture A can be automatically discharged from the opening 14. For this reason, there is no need for a means for opening and closing the lid for closing the rotating drum, and as a result, the work when adding and discharging the material to be mixed A can be carried out easily.

Further, by providing the opening 14 with the lid 15 which is biased by the bullet 18, when the rotary drum 11 is rotated clockwise to mix, the material to be mixed A is transferred to the lid 15.
Even if this occurs, it can be resisted by the bullet 18 and the discharge of the mixture A during mixing can be prevented. On the other hand, during discharge, as the rotary drum 11 rotates in the clockwise direction, the contact pressure of the mixture A to the lid 15 gradually increases, allowing the lid 15 to be opened. For this reason, the point at which the mixed material A falls is located slightly in front of the rotary drum 11, making it easier to take it out.

FIG. 4 shows a second embodiment, and the same parts as in the first embodiment will be described with the same reference numerals.

The opening 14 formed in the rotating drum 11 is
3, that is, in the circumferential direction. A cover plate 19 covering this opening 14 is a cover plate 19 that covers the opening 1
4, one end 19B is connected to the other end 19A, and the other end 19A is spaced apart and covers the opening 14 and protrudes further inward.
After the mixture is added, the mixture is rotated counterclockwise to mix the mixture. On the other hand, when the rotary drum 11 is rotated clockwise, the mixture A can be discharged from the opening 14.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications are possible, such as making the cross section of the rotating drum polygonal instead of circular, or directly connecting the rotating drum to a motor with a speed reducer. It is.

[Effects of the invention] The present invention has a cover inside to cover the opening formed in the rotating drum, so there is no need for a lid for the opening with a fixing means, and it is possible to input and discharge materials to be mixed. can be done easily.

[Brief explanation of the drawing]

1 to 3 show the first embodiment, FIG. 1 is a sectional view, FIG. 2 is a partially cutaway perspective view, FIG. 3 is an operating state, and FIG. 3B is an explanatory diagram at the time of mixing, FIG. 3B is an explanatory diagram at the time of discharge, FIG. 4 is a cross-sectional view of the second embodiment, and FIG. 5 is a cross-sectional view of the conventional example. 11... Rotating drum, 12... Frame, 14...
Opening, 19...Covering board.

Claims (1)

[Scope of utility model registration request] a rotating drum mounted on a frame; an opening formed in the body of the rotating drum; and a cover that is installed inside the rotating drum and protrudes so that the inside of the opening communicates with the inside of the rotating drum. A mixing machine characterized by comprising: