JPS6233048B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a hopper with a mixer used for spraying or pouring concrete or mortar.

Conventionally, when spraying or pouring concrete or mortar at civil engineering, construction sites, etc., a mixer is used to knead raw materials such as cement, sand, and water, and a pressure feeder is used to temporarily store the kneaded materials and set up separately at the appropriate time. A hopper with an agitation device was used that could be transported to different locations.

However, there are two types of these: individual types that can drive both separately, and integrated types that can be driven simultaneously by one power source.The former has the advantage of being convenient and having low power costs because it can be used independently. The advantages and disadvantages of the former are that the former has the disadvantages of high equipment costs and requires a large amount of space, and the latter requires simultaneous operation of the mixer section or hopper section even when the mixer section or hopper section is not required. They had completely opposite strengths and weaknesses. In addition, since they are integrally constructed, they are structurally somewhat complex, making them difficult to inspect and maintain, and another drawback of both is that they lack safety.

In other words, with these devices currently in use on the market, it is easy to accidentally rotate the drive motor when inspecting, cleaning, or replacing the kneading blades for mixers or the stirring blades for hoppers, or if the drive motor is accidentally rotated while it is being driven. There is a risk of serious accidents that could even lead to human life, such as accidentally putting one's hand into the mixer or hopper.

In view of the above-mentioned current situation, the present invention is such that the hopper section, the mixer section, and the motorized lid are removably fitted in order in the upward direction, and the kneading/stirring blades, etc. are automatically separated from the drive source by removing the lid. By making it possible to attach and detach the lid separately, and by making it possible to connect the lid directly to the hopper section except for the mixer section, we have incorporated only the advantages of both the individual type and the integrated type, which are currently available. It is an object of the present invention to provide a hopper with a mixer that eliminates drawbacks.

To explain in detail based on the embodiment shown in the figure, 1 is a container for a hopper, the lower part of which is formed into an inverted conical shape, and a discharge pipe 1a is connected to the center part, so that it can be connected to a pressure-feeding conveyor as appropriate. be.

Reference numeral 2 denotes a mixer casing, which is formed into a cylindrical shape with a bottom so that it can be removably fitted into the upper part of the hopper container 1, and the outer diameter of the upper part is the same as that of the hopper container 1. Further, the bottom wall 2a is swingable downward near the outer periphery and is provided with an on-off valve 2b, which can be opened and closed from the outside by an operating lever 2c cut out in the upper part of the hopper container 1. Furthermore, a bearing 4 is provided on the lower surface of the center of the bottom wall 2a via an upper seal 3, and a rotating shaft 5 having a penetrating pin 5a protruding from the vicinity of the upper end is pivotally supported.

Reference numeral 6 denotes a stirring/pushing blade, the central boss of which is fitted onto the lower end of the rotating shaft 5 and fixed with a push bolt 7. Two blades 6a, 6a are suspended from the boss to hold the hopper container. The kneaded material is rotated in sliding contact with the bottom wall of No. 1, thereby making it possible to stir the kneaded material and push it into the discharge pipe 1a.

A lower seal 8 is fitted onto the rotating shaft 5 and seals the lower part of the bearing 4.

Reference numeral 9 designates a lid body that can be removably fitted onto the upper part of the mixer casing 2, and a drive motor 10 having a through pin 10a protruding near the lower end is fixed to the upper surface of the center part, and 11 is a control motor. 12 is a motor cover, and 13 is a canopy. Further, a raw material inlet 9a including a mesh portion is formed in a part of the upper surface of the lid 9.

Reference numeral 14 denotes an intermediate shaft made of a cylindrical body, with linear grooves cut in the upper part and curved grooves cut in the lower part, and three blades 15a having the same structure as known kneading blades for mixers,
15b and 15c are integrally provided, and the lower end of the cylinder is fitted to the upper end of the rotating shaft 5.The rear cover body 9 is fitted into the mixer casing 2, and the upper end of the cylinder body and the shaft of the motor 10 are fitted. By aligning the through pin 1
The kneading blades 15a to 15c and the stirring/pushing blade 6 can be rotated together by the engagement of the straight grooves 0a and 5a with the straight grooves and the bent grooves.

Furthermore, the lid body 9 is attached to the mixer casing 2.
It is directly fitted into the hopper container 1 except for the hopper, and the motor 10 shaft and the stirring/pushing blade 6 can be connected by a separately provided connecting shaft 16 (FIG. 5).

Therefore, when using the mixer and the hopper at the same time, the mixing/pushing blade 6 is fixed to the tip of the rotating shaft 5 of the mixer casing 2 and the hopper container 1 is fitted into the hopper container 1, and then the lower end of the intermediate shaft 14 is connected to the rotating shaft 5. 5
to fit. Finally, fit the lid 9 and motor 1.
When the shaft of 0 and the upper part of the intermediate shaft 14 are fitted together, it becomes a hopper with a mixer.

In addition, since a mixer is not necessary at a site where mixed materials are supplied to a linear hopper by a mixer truck or the like, the lid body 9 is directly fitted into the hopper container 1 and connected as shown in FIG. axis 1
If the hopper is connected for driving using 6, it is possible to use the hopper alone.

In this case, the boss part of the stirring/pushing blade 6 and the rotating shaft 5
If the configuration of the connecting part between the motor 10 shaft and the intermediate shaft 14 is exactly the same as that of the connecting part between the motor 10 shaft and the intermediate shaft 14, and the vertical dimensions of each part are adjusted in advance, there is no need for the connecting shaft 16, and direct driving connection can be performed. It is something.

As will not be described in detail above, in the hopper with mixer according to the present invention, the upper opening of the mixer casing is closed by the lid, and when the lid is removed, the motor is also removed. Danger caused by workers and others putting their hands into the mixer or hopper is prevented.

In addition, when performing inspection and maintenance, the inside of the mixer casing can be seen by simply lifting the lid, and the kneading blades, stirring blades, etc. can be removed by lifting the mixer casing, and each of these blades can be easily attached and detached. It does not take time to put on and take off.

In addition, for applications where a mixer section is not required, the lid body can be fitted into a linear hopper container and used as a single hopper with a normal stirring and pushing device, and only one power source can be used. That's fine.

In this way, it is not only possible to use the hopper in conjunction with a mixer in the space it occupies, but it is also highly safe and compatible with the purpose of use, even though it can be disassembled and assembled with almost no tools required. It is extremely convenient and can be easily rearranged.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional structural view showing one embodiment of the present invention, Fig. 2 is a plan view, Figs. 3 and 4 are sectional views taken in the direction of - and - arrows in Fig. 1, and Fig. 5 is another usage mode. FIG. In the figure, 1 is a hopper container, 2 is a mixer casing, 5 is a rotating shaft, 6 is a stirring/pushing blade, 9 is a lid, 10 is a drive motor, 14 is an intermediate shaft, and 15a
-c indicates a kneading blade, and 16 indicates a connecting shaft.

Claims (1)

[Scope of Claims] 1. A container for a hopper with an upper opening, the lower part of which is formed into an inverted conical shape and a discharge port provided at the lower center end, which is removably fitted into the upper part of the container and can be operated from the outside on a part of the bottom wall. a mixer casing comprising an on-off valve, and supporting a rotary shaft which extends into the hopper container by appropriate bearings at the center of the bottom wall and has a stirring/pushing blade removably fixed at its lower end; The output shaft is removably fitted into the holder, and is equipped with a prime mover in the upper center so that the output shaft hangs down to an appropriate length, and a lid body with a raw material inlet formed in a part, and the output shaft and a rotating shaft for the stirring/pushing blade. A hopper with a mixer, characterized in that the hopper comprises an intermediate shaft which is detachably connected to the hopper and which is appropriately equipped with kneading blades for the mixer. 2. The mixer-equipped hopper according to claim 1, wherein the lid body can be directly fitted into the hopper container, and the output shaft can be connected to the stirring/pushing blade. 3. The hopper with a mixer according to claim 2, wherein a separately provided connecting shaft is used when connecting the output shaft and the stirring/pushing blade.