JPH04259689A - Linear pump - Google Patents

Abstract

PURPOSE:To feed a specified amount of inorganic adhesive, etc., contained in a hopper to an injection nozzle using a flexible tube without generating therein any pulsation, and therein equipping a changeability for the feed speed to any desired. CONSTITUTION:A hopper 9 is coupled with an injection nozzle 24 through a flexible tube 5, and an inorganic adhesive L, etc., agitated in the hopper 9 is fed to the injection nozzle 24 by pressing the middle part of the flexible tube 5. Thus a pumping effect is obtained, wherein the middle part of the tube 5 is arranged straight, and a roller 18 is furnished which moves from the hopper 9 side to the injection nozzle 24 side while pressing this straight portion of tube. The roller 18 is arranged capable of contacting and separating from the tube 5.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear pump for delivering an inorganic binder or the like from a hopper to an injection nozzle.

0002

2. Description of the Related Art A conventional pump 100 that pumps an inorganic binder such as cement mixed in a hopper to an injection nozzle has one end connected to a hopper (not shown) and the other end connected to an injection nozzle, as shown in FIG. The intermediate portion 102 of the rubber tube 101 is bent into a U-shape and set in a case 103, a rotatable rotor 104 is provided at a position facing the U-shaped portion 102 of the rubber tube 101, and the rotor 104 is rotated. While pressing the rubber tube 101 with the convex portions 105 at both ends thereof, the inorganic bonding agent (transferred material) such as cement inside the rubber tube 101 is sent out from the hopper toward the injection nozzle.

0003

However, in the above linear pump, when the rotor 104 rotates and the convex portions 105 at both ends separate from the rubber tube 101, the discharge of the conveyed material stops and pulsation occurs. It is not possible to dispense a certain amount without pulsation. Furthermore, the amount to be discharged cannot be freely changed. Furthermore, at least one convex portion 105 of the rotor 104 is always connected to the rubber tube 101.
Therefore, when cleaning the inside of the rubber tube 101, the inorganic bonding agent adhering to the rubber tube 101 cannot be easily washed away.

0004

[Means for Solving the Problems] In order to solve the above problems, the present invention connects a hopper and an injection nozzle with a flexible tube, and supplies an inorganic binder, etc. stirred in the hopper to the middle part of the flexible tube. In the pump that feeds the fluid to the injection nozzle by pressing, the middle part of the flexible tube is arranged in a straight line, and a roller moves from the hopper side to the injection nozzle side while pressing the linear flexible tube. has been established. Further, the roller was provided so as to be able to move toward and away from the flexible tube.

[0005]

According to the above means, the inorganic adhesive in the linear flexible tube is pressed by the roller at a constant pressure, and a constant amount is sent out from the hopper to the injection nozzle without pulsating.

[0006]

Embodiments Next, embodiments of the present invention will be explained with reference to the attached drawings. FIG. 1 shows a side view of the linear pump of the present invention applied to a tile panel joint filling machine. Place this plate horizontally
A hose plate 6 with an open upper part is provided in order to horizontally and linearly attach a flexible tube 5 made of rubber or the like thereto. The hose plate 6 is vertically slidable by a push cylinder 7.

[0007] A hopper 9 is provided upstream of the flexible tube 5 for stirring an inorganic adhesive such as cement L using a stirrer 8 . Further, the flexible tube 5 at the right end of the hose plate 6 is provided with a pinch valve 10 for opening and closing the flexible tube 5. and flexible tube 5
An injection nozzle section 11, which will be described later, is provided on the downstream side.

A rail plate 12 is provided horizontally above the hose plate 6, and a linear motion bearing 14 is horizontally suspended between bearing spacers 13 vertically provided at both ends of the rail plate 12. Also, below the linear motion bearing 14 is a bearing spacer 1.
A rotatable trapezoidal screw 15 is horizontally supported by a bearing (not shown) provided at the lower end of the screw.

A bearing holder 17 is provided at the upper end of the roller holder 16 that engages with the trapezoidal screw 15, and engages with the aforementioned linear motion bearing 14 to guide the roller holder 16. Furthermore, a roller 18 for pressing the flexible tube 5 is provided at the lower end of the roller holder 16.

A toothed pulley 19 is provided at one end of the trapezoidal screw 15 and is connected via a timing belt 20 to a toothed pulley 22 attached to the shaft of a gear motor 21 with a brake. As a result, the trapezoidal screw 15 rotates, and the trapezoidal screw 15
The roller 18 slides along.

The flexible tube 5 extending downstream from the hose plate 6 is divided into two directions by a branch pipe 23, one side is connected to the hopper 9 by a flexible tube A, and the other is connected to the hopper 9 by a flexible tube B. It is connected to the nozzle 24.

As shown in FIG. 2, near the branch pipe 23,
The frame 2 straddles the conveyance line 26 of the tile panel 25.
7 is fixed. An air cylinder 28 that moves vertically is provided on the frame 27, and a compact cylinder 29 that moves vertically is also vertically provided on the lower surface of the frame 27.

A bar is provided at the tip of the rod of the air cylinder 28, and this bar moves up and down to selectively press the flexible tube A or B. When the flexible tube A is pressed by this, the conveyance of the inorganic adhesive such as cement to the hopper 9 is stopped, and when the flexible tube B is pressed, the inorganic adhesive is also stopped. The conveyance to the injection nozzle 24 is stopped.

One end of a lever 30 whose intermediate portion is pivotally supported on the frame 27 side is connected to the injection nozzle 24 side. The other end of the lever 30 is in contact with the lower surface of the compact cylinder 29 mentioned above.
When the injection nozzle 24 is moved downward, the injection nozzle 24, which was facing the joint 31 of the tile panel 25, is lifted upward. Note that 32 is a sensor for detecting the edge of the tile panel 25.

Next, the operation of a joint filling machine to which the linear pump 1 described above is applied will be explained. Transport line 2
When the tile panel 25 is sent in at step 6, the sensor 32 detects the end of the tile panel 25, the compact cylinder 29 is activated, and the injection nozzle 24 is lowered and aligned with the joint 31 of the tile panel 25. . At the same time, the push cylinder 7 raises the hose plate 6, and the roller 18 presses the flexible tube 5 while moving at a constant speed in the direction of the arrow in FIG. Push the adhesive downstream. At this time, the pinch valve 10 is opened, the air cylinder 28 is activated, and the flexible tube B is closed, so that cement is discharged from the injection nozzle 24 through the flexible tube A, and joint filling is started.

When the tile panel 25 moves on the conveyance line 26 and the jointing is completed from one end to the other, the sensor 32 detects this and the conveyance of cement to the flexible tube B is stopped. , the cement is returned to the hopper 9 through the flexible tube A. At the same time, the compact cylinder 29 works, the injection nozzle 24 rises, and the roller 1
8 closes the pinch valve 10 after sliding the maximum stroke,
It is returned to the origin position on the left side of FIG. The reason why the pinch valve 10 is closed here is to prevent cement, etc. from flowing back into the flexible tube 5 when the vacuum state of the pressing part of the flexible tube 5 returns to its original state due to the elasticity of the tube.

When the next tile panel 25 is sent,
The sensor 32 detects this and repeats the above operation. Further, even when there is no tile panel 25 on the conveyance line 26, the roller 18 repeats the operation of moving at a constant speed while pressing the flexible tube 5. This prevents cement and the like from remaining inside the flexible tube 5 and from starting to harden.

To adjust the amount of cement discharged from the injection nozzle 24, the roller 18 is constantly discharging cement, etc., and the air cylinder 28 is used to inject tubes A and B.
In addition to this selection, the pressing force of the roller 18 that presses the flexible tube 5 may be adjusted by appropriately adjusting the raised position of the hose plate 6. Furthermore, the roll holder 16 is configured with a cylinder, and the roller 1
By applying this during the sliding of 8, the flexible tube 5
It is also possible to obtain an arbitrary discharge amount by adjusting the pressing force. Furthermore, by interlocking the roll holder 16, pinch valve 10, air cylinder 28, compact cylinder 29, and conveyance line 26 with the sensor 32, it becomes possible to perform grouting of tile panels of all shapes completely unmanned. .

In addition, when cleaning the inside of the flexible tube 5 after use, the hose plate 6 is lowered by the push cylinder 7 so that the pressure of the roller 18 is not applied to the flexible tube 5, and the water is forced out. By pouring well, you can easily wash away any stuck cement.

[0020] In the above embodiment, the explanation has been made for the case where there is one set of the flexible tube 5 to the injection nozzle 24 pressed by the roller 18, but a large number of rows of these sets are prepared,
As many joints as there are rows of joints in the tile panel 25 can be filled at once. By closing unnecessary injection nozzles 24 and returning the cement to the hopper 9, joint filling can be freely performed on tile panels of different widths, panels of irregular shapes such as those with steps, windows, etc.

[0021]

As described in detail above, according to the present invention, inorganic adhesive or the like can be discharged in a fixed amount without causing pulsation, and the discharge amount can also be set arbitrarily. Furthermore, since the roller can be freely separated from the flexible tube through which the inorganic adhesive and the like are fed, the inside of the flexible tube can be easily cleaned.

[Brief explanation of the drawing]

FIG. 1 is a side view of a linear pump of the present invention applied to a tile panel joint filling machine.

FIG. 2 is a side view of the injection nozzle section.

FIG. 3 is a plan view of a conventional linear pump.

[Explanation of symbols]

1 Linear pump 5 Flexible tube 9 Hopper 10 Injection nozzle 18 Roller L　Inorganic bonding agent

Claims (2)

[Claims] Claim 1: A pump in which a hopper and an injection nozzle are connected by a flexible tube, and the inorganic binder, etc. stirred in the hopper is sent to the injection nozzle by pressing the middle part of the flexible tube, 1. A linear pump characterized in that the middle part of the flexible tube is arranged in a straight line, and a roller is provided that moves from the hopper side to the injection nozzle side while pressing the linear flexible tube. 2. The linear pump according to claim 1, wherein the roller is movable toward and away from the flexible tube.