JPH0451859Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a mixing machine that uniformly mixes an appropriate amount of fertilizer and/or chemicals into crushed soil used as bed soil or covering soil for raising seedlings, for example. .

[Conventional technology and its issues]

Conventionally, as a means of uniformly mixing an appropriate amount of fertilizer and/or chemicals into crushed soil used as bed soil or covering soil for raising seedlings, the fertilizer and/or chemicals are added to the crushed soil in a container, and then the crushed soil is mixed with the crushed soil. The mixture was mixed manually to homogenize the two. Such methods require a lot of manpower and time during the busy preparation period for raising seedlings, and
There is an inconvenience that variations occur in the blending ratio of both, which affects seedling raising.

As a means to solve such problems, the applicant of the present invention proposed a homogeneous mixer as Utility Application No. 63-49192 (Utility Model Application No. 01-152723). However, this method continues to supply fertilizer and/or chemicals even when the crushed soil in the hopper 7 is exhausted, resulting in an imbalance in the proper mixing ratio and a large amount of crushed soil in the rotating stirring cylinder. Since fertilizers and other substances are mixed in, this results in a negative impact on the seedlings.

The purpose of this invention is to improve the mixing ratio and uniform mixing of crushed soil, fertilizers, chemicals, etc. by arranging multiple stirring plates at appropriate intervals on the inner wall of a rotating stirring cylinder. The present invention aims to provide a mixer that can further reduce time and labor to a large extent.

[Means to solve the problem]

The structure of the present invention, which solves the problems of the prior art, is that a hopper 7 is provided on the lower bottom of the machine frame in a substantially horizontal position and has a screw transfer body with a large transport amount mounted on the shaft, and a hopper 7 is provided on the upper side of the machine frame. is provided with a hopper 17 having a discharge mechanism with a small conveyance amount, and communicates the discharge section of the discharge mechanism with the discharge end of the screw transfer body through a falling channel, and connects the front surface to the discharge end of the screw transfer body. The apparatus is characterized in that a crushed soil sensor for stopping the drive of the discharge mechanism is provided at least in the inner lower part of the hopper 7, communicating with the rear part of the rotating stirring cylinder in a substantially horizontal position with an open opening.

〔Example〕

Next, details of embodiments of the present invention will be explained with reference to the drawings.

Figure 1 is a vertical side view, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a front view of the rotating stirring cylinder, and Figure 4 is a cross-sectional view taken along line A-A in Figure 1.
Figures 5, 6, and 7 are front views of a rotating stirring cylinder showing deformation of the stirring plate, Figure 8 is a front view of an example in which the rotating stirring cylinder is polygonal, and Figure 9 is a front view of a rotating stirring cylinder with a polygonal shape. FIG. 7 is a vertical cross-sectional side view showing another example of a vertical flow path.

Reference numeral 1 denotes a machine frame, and on both sides of the front end of the machine frame 1, leg rods 3 with rotary wheels 2 supported at the lower end are provided. A flexible leg lever 4 is provided, and by the expansion and contraction action of the leg lever 4, the longitudinal axis of the machine frame 1 is given a downwardly inclined attitude or a horizontal attitude with respect to the ground. In the figure, 5 is a cylindrical rod for fitting the leg rod 4, and 6
is a tightening bolt.

At the rear of the machine frame 1, as shown in Fig. 2,
A large-capacity hopper 7, which has a U-shaped cross-sectional shape and a horizontal conveying cylinder portion 7a at its bottom, is mounted to accommodate crushed soil. A screw transfer body 8 with a large conveyance amount is mounted on the shaft of the conveyance cylinder part 7a of the hopper 7, and the diameter of the screw conveyance body 8 and the diameter of the conveyance cylinder part 7a substantially match. By adapting the circular hole 9 provided in the front wall of the hopper 7 to the diameter of the screw transfer body 8, a fixed amount of crushed soil is conveyed while the crushed soil in the hopper 7 is slit by the circular hole 9. It's like this. Further, a pulley 10 is provided on the rear end shaft portion 8a of the screw transfer body 8, and this pulley 10 and a pulley 12 of a motor 11 mounted on the machine frame 1 are connected by a belt 13. It is configured to provide rotational drive. 7b is an auxiliary hopper.

Reference numeral 14 denotes a rotating stirring cylinder in a substantially horizontal position with an opening 14a formed on the front surface, and a window 14b is formed on the rear surface of the rotating stirring cylinder 14. , and the lower end of the conveying cylinder portion 7a are inserted into the rotary stirring cylinder 14. The outer periphery of the front end of the rotary stirring cylinder 14 is supported by a plurality of guide wheels 15 that are pivotally supported on the machine frame 1, as shown in FIGS. Rotating stirring cylinder 14
It is fixed to the tip of an arm 16 provided inside the rotary stirring cylinder 14 together with the screw transfer body 8.
It is configured to rotate.

Reference numeral 17 denotes a small-volume hopper provided on the upper side of the machine frame 1, and fertilizer and/or chemicals are accommodated in the hopper 7. And this hopper 1
A screw transporting body 18 with a small conveyance amount is provided at the bottom of the screw transporting body 18 in a substantially horizontal position, and the contents are transported in a direction opposite to the conveying direction of the screw transporting body 8. The delivery end and the delivery end of the screw transfer body 8 are communicated through a falling channel 19 in a substantially vertical position, and a small amount of fertilizer and/or chemicals are dropped and supplied into the crushed soil that is being transported in large quantities. and mixed.

Incidentally, in the above embodiment, the fertilizer etc. in the small volume hopper 17 was conveyed and dropped by the screw transfer body 18, but the fertilizer etc. which is about to fall under its own weight is dropped in fixed quantities by a grooved roller etc. However, it is not limited to what is shown in the drawings. Further, although the conveying direction of the screw conveying body 18 is shown to be opposite to the conveying direction of the screw conveying body 8, it is sufficient to supply fertilizer etc. to the upper part of the falling channel 19 in a substantially vertical position. The direction is not specified.

Motor 11 and the screw transport body 1
By adjusting the rotational speed of the motor 20 of 8, the conveyance amount of the screw transport bodies 8, 18 can be adjusted, and the mixing ratio of crushed soil and fertilizer can be arbitrarily adjusted.Furthermore, the rotation of the screw transport body 8 can be adjusted according to the properties of the crushed soil. Of course it is possible.

In addition, the rotary stirring cylinder 1
A plurality of sheets having approximately the total length of 4 (4 sheets in the example)
Stirring plates 21a are provided at equal intervals. and,
The plate surface of this stirring plate 21a is aligned in the radial direction of the rotating stirring cylinder 14, as shown in FIGS. 2 and 3.
In addition, as shown in FIG. 4, by providing a stirring plate 21b whose tip is slightly bent in the direction opposite to the rotating direction of the rotary stirring cylinder 14, the scooped up crushed soil can be effectively dropped without being carried away. You can also do that. For the same reason, as shown in FIG. 5, a stirring plate 21c may be provided with a backward angle with respect to the rotational direction of the rotary stirring cylinder 14. Furthermore, as shown in FIG. 7, the stirring plates 21d may be provided with wave-like irregularities on the edges of the stirring plates 21a, 21b, and 21c, thereby making the falling of the scooped crushed soil uneven and improving the stirring and mixing. You can also try to make it better. Furthermore, as shown in FIG. 6, it is also possible to attach the stirring plates 21a diagonally to give a certain degree of conveying action to the stirring plates 21a.
It can also be applied to 21d.

Further, a shielding plate 22 is disposed at the open end of the rotary stirring cylinder 14, leaving an outer circumference of the opening 14a, that is, a gap 14c for outflow of the mixed crushed soil. The shielding plate 22 is attached to the rotating stirring cylinder 14 by a mounting plate 23, and the shielding plate 22 is attached to the rotating stirring cylinder 14 as shown by the solid line.
provided inside near the opening of the
As shown by the imaginary line, it is attached slightly outward from the opening end. This shielding plate 22 suppresses the floating crushed soil generated inside the rotary stirring cylinder 14 from flowing out to the outside, and protects the workplace environment.
This is designed to improve safety by preventing careless hands from entering the rotating stirring cylinder.

Furthermore, at least a crushed soil sensor 24 is provided at the inner lower part of the hopper 7 to stop the screw transfer body 18, which is the discharge mechanism of the hopper 17, so that when the amount of crushed soil in the hopper 7 decreases, the crushed soil pressure increases. When the screw conveyor 18 stops acting on the soil 24, the screw conveyor 18 is stopped, and only the fertilizer and chemicals are released and supplied, thereby disrupting the balance of the proper mixing ratio with the crushed soil and preventing any negative effects on the seedlings, etc. be. Further, a sensor 25 for stopping the rotation of the screw transporting body 8 is provided at the inner lower part of the hopper 17, and when there is no fertilizer or chemical in the hopper, the screw transporting body 8 is stopped or
This system is designed to issue an alarm to prevent the proper mixing ratio from becoming unbalanced. Furthermore, the crushed earth sensor 24 can also stop the screw conveyor 8, and the sensor 25 can also stop the screw conveyor 8.
It may also be possible to stop the screw transport 18.

Further, as shown in FIG. 8, the cylindrical rotating stirring cylinder 14 can be replaced with a polygonal rotating stirring cylinder 14a, and the stirring plates 21a to 21d are not necessarily required. In addition, in the case of a polygonal shape, since it is necessary to support the rotating stirring cylinder 14a by the guide ring 15, the rotating stirring cylinder 14a has a polygonal shape.
4 is guided by a ring 26 provided on the outer periphery of the middle part. FIG. 9 shows a modification of the vertical flow path 19, in which an elbow-shaped flow path 19a is provided at the bottom of the vertical flow path 19.
is provided, and its discharge end is opened and communicated with the rotary stirring cylinder 14.

[Effect of idea]

As described above, according to the configuration of the present invention, the following effects can be obtained.

(a) Fertilizers, chemicals, etc. are thrown into the crushed soil during transportation by the screw conveyor, so the conveyance action creates agitation, and in addition, the agitation action in the rotating agitation cylinder is added to ensure uniform distribution. Mixing can be done in a short time.

(b) At the very least, by stopping the supply of fertilizer and/or chemicals when the crushed soil in the hopper 7 is empty, it is possible to prevent the work from continuing without mixing, and to avoid over-fertilization by supplying only fertilizer. It is possible to prevent the harmful effects of aging on the seedlings, and the appropriate mixing ratio can always be supplied with bed soil or covering soil.

(c) It is possible to significantly shorten work time and save labor.

[Brief explanation of drawings]

Figure 1 is a vertical side view, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a front view of the rotating stirring cylinder, and Figure 4 is a cross-sectional view taken along line A-A in Figure 1.
Figures 5, 6, and 7 are front views of a rotating stirring cylinder showing deformation of the stirring plate, Figure 8 is a front view of an example in which the rotating stirring cylinder is polygonal, and Figure 9 is a front view of a rotating stirring cylinder with a polygonal shape. FIG. 7 is a vertical cross-sectional side view showing another example of a vertical flow path. 1...Machine frame, 7...Hopper, 7a...Transport cylinder section, 8...Screw transfer body, 9...Circular hole, 1
4... Rotating stirring cylinder, 15... Guide wheel, 16... Arm, 17... Hopper, 18... Screw transfer body, 19... Falling channel, 21a, 21b, 21
c, 21d... Stirring plate.

Claims (1)

[Scope of Claim for Utility Model Registration] Hopper 7 in which a screw transporting body with a large transport amount is mounted on a machine frame in a substantially horizontal position at the bottom of the machine frame.
and a hopper 17 having a discharge mechanism with a small conveyance amount is provided on the upper side of the machine frame, and the discharge part of the discharge mechanism and the discharge end of the screw transfer body are communicated through a falling channel, A rear part of a rotating stirring cylinder in a substantially horizontal position with an open front is connected to the delivery end of the screw transfer body, and at least a crushed soil sensor for stopping the driving of the discharge mechanism is provided at the lower inside of the hopper 7. A mixing machine characterized by: