JPH0542001Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application The invention relates to a machine that stirs feed, grain, fertilizer, etc. (hereinafter referred to as materials) and packs them into bags.

B. Conventional technology Conventional powder and granule bagging machines include, for example,
As disclosed in Japanese Patent No. 204805, a hopper containing a filling material is provided with a pushing screw at the bottom, several stirring bodies provided above the pushing screw, and a cylinder mechanism at the bottom of the hopper. In Japanese Patent Publication No. 47-8040, there is a device equipped with a filling feeding mechanism and a bagging mechanism, in which the filling in a bisected hopper is fed by a screw conveyor, and compressed air is supplied from the shaft of the screw conveyor. The invention of an automatic bagging machine for feeding, efficiently filling and packaging powder and granular materials is disclosed, and furthermore, in Japanese Utility Model Publication No. 58-4578 and Japanese Patent Publication No. 58-4570, a rotating shaft in a hopper is equipped with a curved agitating machine. A support with wings etc. at the tip is provided,
Various methods are known that attempt to improve the stirring action.

C. Problems to be solved by the invention Among the conventional devices mentioned above, the first two types are effective configurations for the purpose of packaging a fixed amount at a time. If the material in the product tank is fertilizer with a lot of moisture or fiber, it will not be stirred sufficiently, and it will stick to the product tank and screw conveyor and solidify, causing damage to the powder outlet and suction pipe. It gets clogged. Furthermore, the hopper section that stirs and mixes the filling material, the cylinder section that sends out the filling material, and the bagging section that bags the filling material in fixed amounts each have different drive mechanisms, and the cylinder devices, solenoid valves, compressors, etc. Since they are used separately, not only does the bagging process take a lot of time, but the number of components increases, making the device larger and requiring more maintenance and manufacturing costs. In addition, regarding the latter two types of agitators, there is only a description regarding the arrangement and shape of the agitating member within the hopper, and there is no disclosure of any consideration regarding the process or apparatus after agitation.

Furthermore, the important points about the above stirring and filling equipment are:
Even if unnecessary matter (dust) is mixed in the filling, there is no mechanism to separate and discharge it.
The problem is that the quality of the final packaged product deteriorates.

D. Means for Solving the Problems Therefore, the present invention eliminates the above-mentioned drawbacks of the conventional technology and provides a machine that effectively stirs materials, has a simple and rational configuration, and is capable of efficiently packing high-quality bags. The configuration is such that a rotating shaft rotated by a drive mechanism is installed in the center of a bottomed cylindrical drum having an opening on the bottom surface, and a plurality of stirring arms are attached radially to the rotating shaft, and the stirring arms rectangular stirring blades placed close to the inner circumferential wall and bottom of the drum are fixed to some of the stirring arms via support rods, and the ends of the remaining stirring arms are fixed to the lower part of the rotating shaft in an upright state; In addition, a curved stirring blade curved in the rotational direction of the rotating shaft is connected via a support rod, and a transfer pipe with a built-in screw conveyor is disposed below the bottom opening, and one of the floor transfer pipes The upper part of the drum is connected to the bottom opening of the drum, and a discharge tube is provided below the other end, and a partition chamber with an open top and bottom is provided in the discharge tube, and a suction hose having a blower is connected to the partition chamber. It is characterized by the fact that

E Action When the rotating shaft is rotated, the stirring arms, support rods, and stirring blades fixed to the rotating shaft also rotate, the supporting rods scrape the material, the curved stirring blades push the material outward, and the rectangular stirring blades push the material outward. scoops up the ingredients and stirs while grinding and mixing the ingredients. The stirred material then falls from the opening in the bottom of the drum onto the screw conveyor below, is carried by the screw conveyor to the discharge tube, and is discharged directly below it. When the filled material falls from the opening of the discharge tube before bagging, only light dust is sucked out from the compartment by the blower through the suction hose, so the worker does not have to inhale the dust. The products packed in bags contain little unnecessary material and are of good quality. All of these steps are performed in series in a short period of time.

Example The present invention will be explained below based on the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention.
Reference numeral 1 denotes a cylindrical drum having a bottom surface, with a rotating shaft 2 erected in the center thereof, which is rotated by a motor fixed to a base frame 3 below the drum. 4,5,
6 and 7 are stirring members attached to the rotating shaft,
4 is four stirring arms radially fixed horizontally at an angle of 90° to the top of the rotating shaft;
Among the stirring arms, two stirring arms 4a and 4c in the diametrical direction are provided with J-shaped support rods 5 toward the bottom.
A substantially trapezoidal rectangular stirring blade 7 is attached to the tip of each support rod, and is tilted and fixed close to the inner circumferential wall and bottom of the drum. Further, curved stirring blades 6, which are elongated and curved to protrude in the rotational direction, and whose tips are fixed to the lower part of the rotating shaft 2, are attached to the other two stirring arms via support rods.

Further, an opening 8 is provided near the peripheral wall of the bottom surface of the drum 1, and a transfer pipe 9 containing a screw conveyor 9a is arranged below the opening 8.
Although the position of the opening 8 is not limited, the bottom surface near the peripheral wall of the drum is most desirable in relation to the position of the curved stirring blade 6. The transfer pipe 9 has a cylindrical shape with both ends closed, with an input port communicating with the drum opening above one end, and an outlet communicating with the discharge pipe 10 below the other end. An outlet is formed respectively, and a conveyor 9a is provided in the tube in the longitudinal direction. The screw conveyor 9
a is rotated by a motor fixed to the base frame 3 below the drum, and can transport the material that has fallen from the drum opening 8 to the discharge port.

Although the transfer pipe 9 has a cylindrical shape in this embodiment, it may have a U-shaped cross section, for example, as long as the bottom and both sides are closed. Furthermore, although it is desirable to provide a discharge pipe 10 at the discharge port of the transfer pipe 9, the discharge pipe 10 may be omitted in some cases.

Next, inside the discharge tube 10, as shown in FIG. It is formed to match the opening. A suction hose 12b is connected to the inner wall of the partition 11 through a suction hole 12a communicating with the outside of the discharge tube, and the suction hose 12b is further connected to a blower 13 disposed below the drum. When the material falls from the opening of the discharge tube, light dust contained in the material is sucked by the front blower 13 and further sent to a dust box (not shown) via a discharge hose (not shown). .

Reference numeral 14 denotes a pair of flanges installed obliquely upward along a portion of the upper edge of the drum to prevent feed, etc. from spilling out when shoveled into the drum.

15 is a caster attached to the bottom of the front base frame 2, which allows the bagging machine to be easily moved.

Also, although not shown, a weighing device is provided directly below the discharge port, and a switch is attached that operates when a predetermined weight is displayed, so that the screw conveyor can be automatically stopped. There is also a foot-operated conveyor start switch on the floor.

In the bagging machine with a stirring mechanism for feed, etc. configured as described above, when materials such as feed are put into the drum 1 and the rotary shaft 2 in the drum 1 is rotated by the motor, the material is fixed to the rotary shaft 2. The four support rods 5 and the curved stirring blades 6 and rectangular stirring blades 7 provided on each of the support rods rotate together with the stirring arms. Since the drum is curved so as to protrude from the direction of rotation, stirring is performed while constantly pushing the material toward the outer circumference of the drum. Similarly, the rectangular stirring blades 7 attached to the tips of the stirring arms 4a, 4c via the support rods 5 are as follows.
It rotates while scooping up the material pushed outward. As described above, by the rotation of each stirring member having different functions at different positions, the materials in the drum 1 are crushed, mixed, and evenly stirred without solidifying on the inner peripheral wall of the drum or causing a bridging phenomenon. Can be done. The stirred material then falls smoothly from an opening 8 provided near the peripheral wall of the bottom of the drum to a screw conveyor 9a below, and is further carried by the screw conveyor 9a to a discharge port, where it falls. Directly below the discharge port, a bag placed on a measuring device with its top side open is waiting, and the dropped material is filled into the bag. When a certain amount of material is filled, the screw conveyor 9a is stopped by the action of a switch attached to the measuring device, and the falling of the material from the discharge port is temporarily stopped. When the material stops falling, the filled bag is replaced with an empty bag, and the screw conveyor 9a is started by operating the foot switch to restart the falling filling. The narrower the pitch of the screw blades, the smaller the error in controlling the discharge amount by stopping and starting the screw conveyor 9a, so increasing the number of screw blades allows for more accurate bagging.

Further, at the opening of the discharge tube 10, light dust contained in the falling material is sucked into the partition chamber 11 as soon as it exits the opening, and only the heavy material falls into the bag. Therefore, the dust is sent to the dust box via the suction hose 12b, the blower 13, and the discharge hose, and does not fly up. Therefore, the worker does not inhale dust, and furthermore, unnecessary materials can be removed from the final packaged product, resulting in a product of good quality.

G. Effects of the invention According to the invention as described above, it becomes possible to carry out the steps of stirring, feeding, and bagging efficiently in a series, and the entire apparatus can be housed compactly. As a result, the device becomes easy to use and manufacturing costs can be reduced. Furthermore, by having a structure in which only dust is separately discharged from the filling discharge tube, unnecessary dust can be removed before the bagging process, which not only improves work efficiency but also produces bagged products of good quality. Available.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a plan view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a sectional view of the discharge tube showing the dust removal mechanism. 1...Drum, 2...Rotating shaft, 3...Base frame, 4
... Stirring arm, 5... Support rod, 6... Curved stirring blade, 7... Rectangular stirring blade, 8... Opening, 9...
Transfer pipe, 9a... Screw conveyor, 10...
Eject tube, 14... tsuba, 15... caster.

Claims (1)

[Scope of utility model registration request] A rotating shaft rotated by a drive mechanism is installed in the center of a bottomed cylindrical drum having an opening at the bottom, and a plurality of stirring arms are attached radially to the rotating shaft. A rectangular stirring blade is fixed to the inner circumferential wall and the bottom surface through a support rod,
A curved stirring blade whose end is fixed to the lower part of the rotating shaft in an upright state and is curved in the rotational direction of the rotating shaft is connected to the remaining stirring arm via a support rod,
Further, a transfer pipe containing a screw conveyor is disposed below the bottom opening, and an upper end of the transfer pipe communicates with the bottom opening of the drum, and a discharge pipe is provided below the other end. 1. A bagging machine with an agitation mechanism, further comprising a partition chamber opened at the bottom in the discharge tube, and a suction hose having a blower connected to the partition chamber.