JPH0810596A - Mixer - Google Patents

Abstract

PURPOSE:To easily discharge raw material from an opening with a scraper, etc., even if the raw material remains in a mixing passage after discharge of the raw material by opening the mixing passage to the outside through an opening when a lid is lifted and to cover the opening for its safe by providing a protective member to the lid when the raw material is discharged through the opening. CONSTITUTION:Almost semicircular-sectioned mixing passages 7 and 8 are formed at the bottom of a mixing tank, and a freely closable outlet 10 is provided beside the passages 7 and 8. A rotating shaft having an impeller is set above the passage 7 and 8 and in parallel with the passages 7 and 8. Openings 17 communicating with the passages 7 and 8 are furnished to a side wall 3a on one or both sides of the rotating shaft in the mixing tank, and a closable lid 18 capable of opening/closing the openings 17 is provided. A protective member 22 supported by the lid 18 when opened and covering the outside of the openings 17 is furnished to the lid 18. Consequently, the raw material remaining after mixing is easily and completely removed from the mixing passage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixer used for stirring and mixing horticultural soil materials such as peat moss, perlite, mountain soil and river sand, and compost and the like.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned mixer has been disclosed in
As disclosed in Japanese Patent No. 15940, mixing passages 33 and 34 having a substantially semicircular cross section are formed on the bottom surface of a mixing tank 31 having an opened upper surface serving as a raw material inlet 32, and a motor is formed in the mixing passages 33 and 34. Rotary shafts 35 and 3 that rotate by driving
6 and several kinds of stirring blades 3 are attached to the rotating shafts 35 and 36.
A mixer 30 having 7, 37... Fixed radially is known (FIG. 5). This mixer inputs several kinds of soil raw materials and the like from the inlet 32 and rotates the rotating shafts 35 and 36,
The soil raw material is agitated and mixed while being conveyed through the mixing passages 33 and 34. When the mixing is completed, a discharge port 38 provided at one end of one mixing passage 33 is opened, and the mixing raw material of the mixing passage 33 side is opened. By rotating the rotating shaft 35 in the reverse direction, the mixed raw material is conveyed to the discharge port 38 side and taken out.

[0003]

In the above mixer, the discharge of the mixed raw material is performed by the stirring blade which is rotated in reverse with the opening of the discharge port. However, since the stirring blade is not in the form of dripping the entire inner surface of the mixing passage. If the amount of the mixed raw material is small, the mixed raw material cannot be discharged and remains at the bottom of the mixing tank. They cannot be removed from above the mixing tank because the stirring blades interfere, and water is discharged from the input port and discharged from the discharge port.In this case, depending on the next raw material to be stirred and mixed, mixing may be performed. There are some things that can not be done if the tank is wet, and it will be inefficient because it will take the next work after drying.
On the other hand, if left unattended, it may adhere to the inner surface of the mixing tank to deteriorate the stirring and mixing functions, or may not be mixed with the next mixed raw material to obtain a proper mixture.

[0004]

Therefore, according to the present invention, the raw materials remaining in the mixing tank at the end of mixing can be surely removed in a short time without hindering the next mixing. This is a mixer in which an opening communicating with the mixing passage is provided on one or both side walls in the direction of arrangement of the rotating shaft, and a lid which can open and close the opening is provided. Further, it is desirable to provide the lid with a protective member that is supported by the lid when the lid is open and that covers the outside of the opening.

[0005]

Since the mixing passage is opened from the opening when the lid is opened, even if the raw material remains in the mixing passage after discharging the raw material, the raw material can be easily discharged from the opening with a scraping tool or the like. Further, since the opening can be used as a discharge port other than the discharge port, the raw materials can be discharged from the opening after mixing, and the discharge time can be shortened. Further, when the lid is provided with a protective member at the time of discharging using the opening, the opening is covered and it is safe.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a mixer 1 has a box-shaped mixing tank 3 supported above an underframe 2, and the upper part of the mixing tank 3 is opened to become a raw material input port 4, where a grid-like protection is provided. The frame 5 is fitted. Inside the mixing tank 3, passages 7, 8 having a semicircular cross section are formed in the longitudinal direction at the bottom of the center ridge 6, and a handle 9 is provided on one side of one end of the passage 7. A discharge port 10 is provided which is opened by the above. Above each of the passages 7 and 8, a lateral side wall 3a,
Rotating shafts 11 and 12 are rotatably mounted between the rotating shafts 3b, and a plurality of agitating blades 13, 13... The tip of the stirring blade 13 of the rotating shaft 12 on the passage 8 side is directed toward the side wall 3a, and the stirring blade 13 of the rotating shaft 11 on the passage 7 side.
The tips are respectively bent in the direction of the side wall 3b opposite to the discharge port 10. Further, ends of the rotating shafts 11 and 12 on the side wall 3b side are respectively connected to motors 15 and 15 provided below the mixing tank 3 by a chain 14, and are controlled by a control panel 16 provided on the side of the mixing tank 3. Each of them can be driven independently.

On the side wall 3a of the mixing tank 3, the lower ends of both passages 7 and 8 are opened as they are to form substantially crescent-shaped scraping openings 17 and 17, respectively.
At the upper ends of 7, 17 are doors 18, 18 conforming to their shape.
Are hinged so that they can be opened and closed by hinges 18a, 18a. The doors 18, 18 are locked by levers 19, 19, which are pivotally connected to the side walls 3a at the lower ends of the scraping ports 17, 17 from the upper end. That is, when the levers 19 and 19 are rotated in the horizontal state, the upper end 19a is separated from the front of the scraping opening 17 to allow the door 18 to be closed, and when the lever 19 is returned to the original vertical state as it is, the upper end 19a is opened. , 2, the outer surface of the door 18 is pressed. Also the door 18,1
8, one end of a chain 20, 20 is attached to the outer surface,
By hooking the other end of the chain 20 to the locking piece 21 of the side wall 3a, the door 18 is kept open as shown in FIG.
Similarly, on the outer surface of the door 18, wire meshes 22, 22 locked by the hook pieces 18 b, 18 b are suspended.
When the door 18 is opened by the chain 20, a horizontally elongated stopper hole 22
a, the tip of the door 18 is fitted into
It is supported in such a posture that it covers 7 from outside (FIGS. 3 and 4).

In the mixer 1 constructed as described above, a predetermined amount of the soil material is supplied from the input port 4 of the mixing tank 3 with the doors 18, 18 of the discharge ports 17, 17 and the discharge port 10 closed. The motors 15 and 15 are turned on
Is rotated, and the rotating shafts 11 and 12 are rotated. At this time, the rotating shaft 11 rotates counterclockwise when viewed from the side wall 3a side of FIG.
2 rotates clockwise, the raw material is sent from the discharge port 10 side of the passage 7 to the side wall 3b side by the stirring blade 13 of the rotating shaft 11, where it passes over the raised portion 6 and enters the passage 8, and this time the rotating shaft The side walls 3 of the passage 8 by the stirring blades 13
It is sent to the a side and again conveyed to the passage 7. In this way, the raw materials are stirred and mixed for a predetermined time by the stirring blades while being conveyed in the mixing tank 3. When the mixing is completed, the handle 9 is rotated counterclockwise to open the discharge port 10, and when the rotation of the rotating shaft 11 is reversed (clockwise) by operating the control panel 16, the material in each of the passages 7 and 8 is rotated. Is sent to the discharge port 10 side and discharged therefrom. Then, the raw material that has not been completely discharged remains in each of the passages 7 and 8. Here, the levers 19 and 19 are operated to operate the doors 18 and 18.
, The chains 20, 20 are hooked on the locking pieces 21, 21 to open the doors 18, 18, and the wire mesh 2,
When the doors 2 and 22 are flipped up above the doors 18 and 18 (FIG. 3), the scraping ports 17 and 17 are opened, and as shown in FIG.
The scraping tool 23 having a is inserted into the passages 7, 8 from the scraping ports 17, 17, and the remaining raw material can be easily scraped. Therefore, the residual material can be completely eliminated,
Since it can be performed in a short time, the quality of the mixture and the working efficiency of the mixing process are not affected. Of course, the cleaning of the mixing tank 3 can be easily performed.

The discharge of the raw material is not limited to the discharge port 10, but the scraping ports 17, 17 can be used. That is, by opening the doors 18, 18 and opening one or both of the discharge ports 17, 17 at the time of the discharge, the discharge ports 17 are simultaneously opened.
The discharge time can also be reduced, so that the discharge time can be further reduced. In this case, it is safe to cover the outside of the scraping opening 17 with a wire net 22 at the tip of the opened door 18 as shown on the right side of FIG. After discharging the raw material in this manner, the wire nets 22 and 22 may be flipped up and the residual raw material may be scraped out from the scraping openings 17 and 17 in the same manner as described above.

In the above-described embodiment, the description has been given of the mixer in which the mixing tank 3 is provided with the two passages 7, 8 and the rotating shafts 11, 12, but the present invention is provided with a single passage and the rotating shaft. Needless to say, the scraper and the door and the like can be similarly provided in the mixer. Further, the opening / closing structure of the door as the lid is not limited to the above-mentioned embodiment, and various design changes are possible such as making the hinged position be on the side or below the raking mouth, and opening / closing the door in a sliding manner. The body and the wire mesh can be attached and detached separately from the mixing tank, and the door and the scraping port can be provided at both ends (both side walls) instead of one end of the passage. Further, a plate material such as punching metal may be used instead of the wire mesh as the protection member, but these protection members may be omitted.

[0011]

As described above, according to the present invention, the residual raw material after mixing can be simply and completely removed from the mixing passage, and the working efficiency and quality are not affected. Further, since the opening can be used as a new outlet, the raw materials can be discharged in a short time after the mixing is completed. Further, if a protective member is provided on the lid, the outside of the opening is covered, which is safe.

[Brief description of drawings]

FIG. 1 is a perspective view of a mixer according to the present invention.

FIG. 2 is an explanatory diagram showing an open / closed state of a door.

FIG. 3 is an explanatory diagram showing an open / closed state of a door.

FIG. 4 is an explanatory view showing an operation of removing a raw material from a scraping port.

FIG. 5 is an explanatory diagram of a conventional mixer.

[Explanation of symbols]

1. Mixing machine, 2. Underframe, 3. Mixing tank, 4. Input port, 5. Protective frame, 6. Ridge, 7, 8, ... Passage, 9
··· Handle, 10 ··· Discharge port, 11, 12 ·· Rotating shaft, 13 ·· Stirring blade, 14 ·· Chain, 15 ·· Motor, 16 ·· Control panel, 17 ··· Scraping port, 18 ···
Doors, 19 ... Lever, 20 ... Chain, 21 ... Locking piece, 22 ... Wire mesh, 23 ...

Claims (2)

[Claims] 1. A mixing passage having a substantially semicircular cross section formed at the bottom of a mixing tank, an openable / closable discharge port provided on the side of the mixing passage, and a mixing passage provided in parallel with the mixing passage above the mixing passage. A mixer comprising a rotating shaft provided with a stirring blade, wherein an opening communicating with the mixing passage is provided on one or both side walls of the mixing tank in the rotating shaft arrangement direction, and the opening is provided. A mixer provided with a lid that can be opened and closed. 2. The mixer according to claim 1, wherein the lid is provided with a protective member that is supported by the lid when the lid is open and that covers the outside of the opening.