JP2554792Y2 - Kneading equipment for concrete materials, etc. - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a kneading apparatus for kneading concrete materials and the like.

[0002]

2. Description of the Related Art A kneading apparatus for kneading concrete materials and the like for kneading concrete materials and the like has been widely known. This kneading apparatus includes a charging chamber, a kneading chamber, and a screw conveyor disposed so as to face the starting end of the kneading chamber from substantially the entire lower portion of the charging chamber, and kneads the concrete material and the like charged into the charging chamber. The material is conveyed from a charging chamber to a kneading chamber by a screw conveyor, and can be continuously kneaded by rotating blades provided in the kneading chamber.

[0003]

However, in this kneading apparatus, since the screws are arranged over substantially the entire lower part of the charging chamber, the amount of the kneaded material in the mixing chamber equal to or greater than the kneading capacity is increased. May be forcibly transported. In such a case, the amount of the kneaded material in the kneading chamber becomes larger than a predetermined amount, and the mixing ratio between the water and the kneaded material is deviated, and as a result, a predetermined kneading state cannot be obtained in the kneading chamber. Have issues. Another problem is that if the kneaded material is forcibly conveyed to the kneading chamber in an amount equal to or greater than the kneading capacity, kneading cannot be performed sufficiently. On the other hand, if the transport amount of the kneaded material into the kneading chamber is adjusted each time, the cost increases.

The present invention has been proposed in view of the above-mentioned circumstances, and its purpose is to automatically adjust the transport amount in accordance with the kneading capacity of the kneading chamber and to feed the kneading chamber from the charging chamber in a fixed amount. It is an object of the present invention to provide a kneading device for a concrete material or the like which can be transported and can always be maintained at a mixing ratio with water or the like.

[0005]

The present invention solves the above-mentioned problems by providing a kneading apparatus for a concrete material or the like having the following features. The kneading device for concrete material or the like according to the present invention includes a spring member formed in a roughly wound coil shape in a charging chamber. The spring member is rotatably disposed at the starting end side of the transfer means in the loading chamber so that the axis thereof is along the transfer direction of the transfer means. The kneaded material in the charging chamber can be appropriately guided to the conveying means by the rotation of the spring member.

[0006]

In the present invention, the spring member formed in the shape of a coarsely wound coil is rotatably disposed at the starting end of the conveying means in the loading chamber so that the axis thereof is rotatable along the conveying direction of the conveying means. By rotating the spring member, the kneaded material in the charging chamber can be sent along the wound wire, and can be appropriately guided to the conveying means. In addition, when the kneading chamber is filled with the kneaded material and the transport amount by the transport unit decreases, and the kneaded material stays at the starting end side of the transport unit, a load is applied to the spring member when feeding the transport unit to the transport unit by the spring member. . When this load is applied, the spring member expands and contracts in the axial direction and elastically deforms without sending the kneaded material to the conveying means. This can prevent the kneaded material from being sent to the kneading chamber more than necessary. Then, the kneading chamber kneads and discharges the kneaded material in the room, and when the kneaded material can be stored again, the load applied to the spring member is released, and the rotation and elastic force of the spring member quickly and surely convey the conveying means. To the kneading chamber.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a left side view thereof.

The kneading apparatus for a concrete material or the like according to the present invention includes a charging chamber 1 on the right and a kneading chamber 2 on the left. The charging chamber 1 and the kneading chamber 2 communicate with each other through a communication port 4 as shown in FIG. 4, and a rotating shaft 3 extending in the left-right direction is disposed inside both of them.

The rotary shaft 3 is rotatably supported at the right end on the right wall of the charging chamber 1 and is rotatably supported on the left end at the left wall of the kneading chamber 2. , And over the entire region of the kneading chamber 2 in the left-right direction. The right end supported by the right wall of the charging chamber 1 is connected via a belt to a driving motor 5 installed below the charging chamber 1 shown in FIG. 1, and is rotated by the driving of the driving motor 5. ing. In this embodiment, the rotating shaft 3
Is composed of a rotation shaft 3a for the charging chamber provided in the charging chamber 1, a communication port 4, and a rotation shaft 3b for the kneading chamber provided in the kneading chamber 2. Although it is made easy, it can be changed as appropriate, such as by constructing one.

A hopper 11 is mounted on the upper part of the charging chamber 1, and a kneaded material such as a concrete material can be put into the hopper 11 from the hopper 11. Inside, a spring member 12 is provided at a lower portion. The spring member 12 guides the kneaded material in the charging chamber 1 into the communication port 4, and is formed by forming a wire having a circular cross section into a roughly coiled shape as shown in FIG. The left end of the spring member 12 is attached to the left end of the input chamber rotating shaft 3a, while the right end is attached to the right end of the input chamber rotating shaft 3a.
The rotation shaft 3 is rotatably provided along the entire area from the left end side to the right end side in the lower portion of the charging chamber 1.

The communication port 4 allows the charging chamber 1 and the kneading chamber 2 to communicate with each other as described above, and the kneaded material in the charging chamber 1 is introduced into the kneading chamber 2 through the communication port 4. The communication port 4 is provided with a screw conveyor 41 as a conveying means.
The screw conveyor 41 in this embodiment is divided and attached to the left part of the rotation shaft 3a for the charging chamber and the right part of the rotation shaft 3b for the kneading chamber. More specifically, the outer diameter of the spring member 12 is smaller than the inner diameter of the spring member 12, and the portion attached to the input chamber rotating shaft 3a is the spring member 1
2 and a portion attached to the kneading chamber rotating shaft 3 b is exposed to the inside of the kneading chamber 2 so as to face the left portion of the charging chamber 1. And one continuous screw conveyor 41 is formed by connecting both rotating shafts 3a, 3a.

The kneading chamber 2 is formed by a cylindrical casing 21. A pipe 6 for water or the like is connected to the upper portion on the right side of the casing 21 so that water or the like can be introduced into the inside of the casing 21 from outside for a fixed amount at a fixed time as described later. A kneading chamber discharge port 21a is provided at the lower left portion of the casing 21 to discharge the kneaded material to the outside of the kneading chamber 2 after kneading. On the other hand, the kneading blades 22
.. 23 are provided to knead a kneaded material such as a concrete material sent from the charging chamber 1 through the communication port 4 and water or the like sent from the pipe 6. The kneading blades 22... 23 in this embodiment are composed of three blades 22... 22 formed by arranging plate members at equal intervals in the circumferential direction on the outer periphery of the kneading chamber rotating shaft 3 b as shown in FIG. Box-shaped blades 23... 23 formed by arranging three plate members formed by bridging another plate member on the tip of two plate members arranged in parallel in the axial direction on the outer periphery of the shaft 3 and arranged at equal intervals in the circumferential direction. It is composed of two types. The kneading blades 22... 23 made of these two types are used.
Is the screw conveyor 4 in the rotary shaft 3b for the kneading chamber.
1 is formed over the range from the terminal end to the left end, and is arranged over substantially the entire left-right direction inside the kneading chamber 2. The kneading blades 22... 23 are not limited to those in this embodiment, and can be changed as appropriate.

The supply of water or the like by the above-mentioned pipe 6 for water or the like is sent into the kneading chamber 2 by a water pump 6 installed below the charging chamber 1, but as shown in FIG. A switch 40, a pressure rectifier 41, a flow meter 42, and the like are provided. Specifically, when the water pump 6 is operated, water or the like flows in the water pump 6, and when the water pressure reaches a constant pressure, the pressure switch 40 detects the pressure and opens the valve 43 to enter the kneading chamber 2. send. When the pressure switch 40 detects a constant water pressure, the pressure switch 40 instructs the drive motor 5 of the rotating shaft 3 to operate it, and rotates the rotating shaft 3 in accordance with the flow of water or the like. Thus, a certain amount of kneaded material can be transported into the kneading chamber 2 with respect to a certain amount of water.

In this embodiment, a second kneading chamber 7 is provided below the kneading chamber 2. This second kneading chamber 7 further kneads the kneaded material after kneading in the kneading chamber 2 when using a material that is difficult to knead completely, or temporarily stores the kneaded material after kneading. It is provided for convenience in cases and the like. Therefore, when the kneading in the kneading chamber 2 can be surely performed in a short time, the kneading chamber 2 may be directly discharged from the kneading chamber discharge port 21a without passing through the second kneading chamber 7.

As shown in FIG. 3, the second kneading chamber 7 is formed by a casing 73 having a V-shaped lower outer periphery, and a kneading chamber discharge port 21a is connected to an upper left portion of the casing. The kneaded material can be put in. Below the inside, the second kneading blades 72... 72
The rotation shaft 75 for the second kneading chamber is provided in the left and right direction, and the rotation shaft 75 for the second kneading chamber is sent from the kneading chamber 2 by being rotated by the motor 76 for the second kneading chamber. The kneaded material is kneaded. In addition, the second kneading blade 72
.. 72 have the same construction as the mixing blades 22... 23 in the mixing chamber 2 in this embodiment, but have other different shapes, for example, the three blades 22 in the mixing blades of the mixing chamber 2.
.. 22 may be used. In the lower part of the left and right center of the second kneading chamber 7, a discharge port 77 for the second kneading chamber is provided.
Is opened to discharge the kneaded material finally kneaded.

Next, a method of using this device will be described. First, the rotating shaft 3 is rotated by the operation switch of the operation box 8 provided on the back side of the hopper 11, and a kneaded material such as a concrete material is poured into the charging chamber 1 from the hopper 11. As a result, of the kneaded materials that have been charged, those leftward in the charging chamber 1 are conveyed to the kneading chamber 2 by the start end of the screw conveyor 41. On the other hand, the one on the right side in the charging chamber 1 is a spring member 12.
Is guided to the screw conveyor 41 side by the rotation of.
Therefore, the spring member 12 functions as a screw conveyor, and the kneaded material in the entire input chamber 1 can be conveyed into the kneading chamber 2 via the screw conveyor 41.

The kneaded material conveyed into the kneading chamber 2 is kneaded in the kneading chamber 2 with water or the like sent from the pipe 6 by the kneading blades 22. When the kneading chamber 2 is filled with the kneaded material and the transport amount by the screw conveyor 41 decreases, and the kneaded material stays at the starting end side of the screw conveyor 41, the kneaded material to the screw conveyor 41 side by the spring member 12 is removed. A load is applied to the spring member 12 during feeding. When this load is applied, the right part of the spring member 12 contracts and the left part expands as shown in FIG. This allows
The feed of the kneaded material to the screw conveyor 41 is substantially stopped. Therefore, it is possible to prevent the kneaded material from being sent to the kneading chamber 2 more than necessary without adjusting the rotation of the rotating shaft 3, and it is possible to knead the kneading chamber 2 smoothly at all times.

The kneaded material kneaded in the kneading chamber 2 is
The second kneading chamber 7 enters the second kneading chamber 7 through the kneading chamber discharge port 21a, is completely kneaded in the second kneading chamber 7, or is maintained in a sufficiently kneaded state, and is discharged from the second kneading chamber discharge port 72.

At that time, in the kneading chamber 2, the kneaded material starts to enter the second kneading chamber 7 from the kneading chamber 2 and at the same time the kneaded material starts to decrease. When the amount of the kneaded material in the kneading chamber 2 starts to decrease, the screw conveyor 41 is adjusted accordingly.
The kneaded material staying at the starting end of the
The spring member 12 which has begun to be conveyed into the kneading chamber 2 by the load 1 and receives a load quickly guides the kneaded material to the screw conveyor 41 side by the elasticity and the rotational force in the axial direction which are going to return to the original state by removing the load. . Thereby, the kneaded material can always be smoothly transported into the kneading chamber 2.

In this embodiment, the apparatus is used by installing it on the ground or the like. However, the present invention is not limited to this mode of use, and may be mounted on a mixer truck, etc. is there.

[0021]

[Effects of the Invention] As described above, the present invention provides:
The kneaded material in the charging chamber can be appropriately guided to the conveying means by the rotational force of the spring member. On the other hand, when the kneading chamber is filled with the kneaded material and a load is applied to the spring member, the spring member is deformed in the axial direction without sending the kneaded material to the conveying means, and it is possible to prevent the kneaded material from being unnecessarily fed into the kneading chamber. .
Thereby, the kneading in the kneading chamber can always be performed smoothly. Then, the kneading chamber discharges the kneaded material after kneading, and when the kneaded material can be stored again, the kneaded material can be quickly and reliably sent to the conveying means by the rotation and elastic force of the spring member, and conveyed to the kneading chamber. it can. Therefore,
Even without adjusting the transport amount, the operation can be performed automatically and surely by an appropriate amount, and moreover, the kneading can always be uniformly performed in the kneading chamber.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is a front view of a rotating shaft.

FIG. 5 is an explanatory view showing a deformed state of a spring member.

FIG. 6 is an explanatory view of a water-based pipe according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input chamber 2 Kneading chamber 3 Rotating shaft 4 Communication port 7 2nd kneading chamber 12 Spring member 41 Screw conveyor 22, 23 Kneading blade

Claims (1)

(57) [Scope of request for utility model registration] 1. A kneading chamber comprising a charging chamber and a kneading chamber, wherein a kneaded material such as a concrete material charged into the charging chamber is conveyed to the kneading chamber by a conveying means, and is continuously kneaded by the kneading means provided in the kneading chamber. In the kneading apparatus for a concrete material or the like, a spring member formed in a roughly coiled shape is provided in the loading chamber, and the spring member moves the axis of the spring to the starting end side of the transporting means in the loading chamber in the transport direction of the transport means. A kneading device for concrete material or the like, wherein the kneading material in the charging chamber can be appropriately guided to the conveying means by rotation of the spring member.