JPS6185594A - mortar pump - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of Industry E) The present invention relates to the configuration of a mortar pump used when finishing joints with mortar during the construction of tiles or bricks.

(Conventional technology) Conventionally, when constructing tiles or bricks, materials such as mortar or cement are filled in the joints to eliminate gaps.

For this reason, it is necessary to fill mortar into the small joints of large areas such as walls and floors, making it difficult to install. This was F's biggest problem.

For this reason, attempts were made to use machines such as pumps to transport materials such as mortar, but this was highly effective in that Taiko materials could be continuously transported to any location.
Mortar and cement have the property of hardening within a short period of time, and there is a problem in that they harden in a short period of time after a pump or the like is stopped, making it impossible to use them again.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mortar pump that can be expected to operate reliably even after repeated use and discontinuation. It is said that

(Means for Solving Problems) The present invention forms a nozzle from a mortar hopper through a squeeze pump, and controls the rotation by configuring the power of the pump with an electric motor, and controls the rotation at high speed at startup. The problem is solved by reversing the engine when stopped.

The effect is increased by counting the reverse stop when stopped and rotating at high speed at startup, almost the same as when reversing.

(Operation) When the transfer of mortar is stopped, the rotation of the electric motor driving the pump is reversed, and the pressure generated in the mortar for transfer is released.

This allows the mortar to be stored at low pressure to delay hardening and prevent it from hardening before subsequent use.

Then, for the next use, when the moving rock is started, the rotation speed is increased to increase the mortar transfer speed to facilitate the transfer of slightly hardened mortar, and to eliminate the space created by reversing when stopped. Facilitate.

(Example) The present invention will be explained based on an example shown in the drawings. Fig. 1 is a front view showing the main parts of a mortar pump according to the invention, and Fig. 2 shows its configuration. FIG.

In FIG. 1, a mortar hopper 2 is provided on the suction side of a squeeze pump 1 in which a material such as mortar to be filled into the joints is stored.

A nozzle 4 is provided on the discharge side via a hose 3, and the material such as mortar stored in the mortar hopper 2 is discharged from the nozzle 4.

Roughly speaking, the squeeze pump 1 includes three rollers 6 provided on a pump hose 5, and is configured to be rotated by an electric motor 7.

In FIG. 2, the squeeze pump 1 is provided with an electric motor 7, and the electric motor U7 has a rotation speed of 1.
A limit of 8 is provided.

The controller 8 is configured so that the rotational speed of the electric motor 7 increases when the motor 7 is started, and reverses when the motor 7 stops, and is configured so that the high speed rotation at the time of startup is the same as the number of reverse rotations when the motor 7 is stopped, if necessary. It is something that will be done.

In this configuration, the mortar pump stores a material such as mortar or cement for filling joints into the mortar hopper 2.

Then, when the electric motor 7 is driven, the electric motor 7 rotates at high speed, sucks mortar from the mortar hopper 2 with the squeeze pump 1, and transfers it to the nozzle 4 via the hose 3.

Further, the electric motor 7 rotates at a normal speed after rotating at a high speed for a certain period of time, and operates to discharge a capacity amount of mortar from the nozzle 4.

To fill the joints with mortar, apply the mortar discharged from the nozzle 4 to the joints, and while filling the joints with mortar, push the filled mortar into the joints using the tip of the nozzle 4 if possible, so that the spray surface is smooth. Finish it so that it becomes.

Then, when the filling is completed or the work is to be interrupted, the electric #J machine 7 is stopped.

? [Sen 7 is that when the pump is stopped, it reverses and the discharge pressure of the squeeze pump 1 that was applying pressure to the nozzle 4 is released, and the mortar remaining inside the hose 3 etc. is not under pressure. I will stay there.

Therefore, due to the nature of mortar and cement, if it is left in place without being subjected to pressure, the hardening time will not be accelerated.
It will remain in a soft state inside the hose 3 etc. for a while.

For this reason, when stopping work for a certain period of time, hose 3
There is no need to clean the inside of the nozzle 4, etc., and since it is operated at high speed at startup, there will be no transfer failure even if the mortar hardens a little. The initial transport speed is correspondingly increased, making it easier to accommodate the work and making the work extremely convenient.

For such reversal at stop, if you memorize the rotation angle of the squeeze pump 1 or the rotation speed of the electric motor 7, etc., and rotate it at the same high speed m72 as the reversal, the relationship between retreat and advance of the mortar will be almost the same. This makes it easier to handle the mortar discharged from the nozzle 4, allowing for reliable work.

In order to control the Ti171 machine 7 in this way, it is necessary to
A method using a timer for the rotations fl and II tall of 47, or a method of measuring the rotation angle of the squeeze pump 1 can be considered, but depending on conditions such as the length of the hose 3 or the elasticity of the hose 3, it may be reversed. It may happen that it is preferable to make the high speed rotation time of startup 04 longer.

In this way, it seems preferable to experimentally determine the time or rotation angle settings for stopping and starting. If rotation due to completion is expected depending on the type of II7, it is necessary to set the reverse rotation and high-speed rotation in consideration of the rotation.

(Effects of the Invention) According to the present invention, when pressure is applied due to the nature of mortar, curing starts in a short stop time by reversing the squeeze pump when it is stopped and by rotating it at high speed when starting. In addition to solving the problem and improving work efficiency, it also has the great effect of making it possible to interrupt work for a certain period of time and ensuring reliable filling of joints.

[Brief explanation of drawings]

FIG. 1 is a front view showing the main parts of a mortar pump according to the present invention, and FIG. 2 is a diagram showing its configuration. 1... Squeeze pump, 2... Mortar, I...
Horn (-14... Nozzle, 7... Electric Jd, 8
...Control C light.

Claims (2)

[Claims] (1) In a mortar pump that transfers mortar using a squeeze pump, a nozzle is formed from the mortar hopper through the squeeze pump, the power of the pump is controlled by an electric motor, and the rotation control is activated. A mortar pump that is characterized by rotating at high speed at times and rotating in reverse when stopped. (2) The mortar pump according to claim 1, wherein the amount of reverse rotation when stopped is counted and the mortar pump is rotated at a high speed when in operation, which is approximately the same as the amount of reverse rotation.