JPH10238479A - Squeeze pump for building paint material including mortar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid an adverse influence of damage to any one of plural pumping tubes on the force-feeding by the other pumping tubes in a squeeze pump for force-feeding building paint materials in those tubes through the application of pressure to them. SOLUTION: A squeeze pump comprises plural pumping tubes 10, a series of rotary shafts 2, and plural rotors 3 arranged on the shafts 2. The rotor 3 has an appropriate number of pressers 30 for pressing the tube 10 by the rotation of the shaft 2 to force-feed the fluid material inside the tube 10, and defines plural storage spaces 14 between it and bulkheads 4, each of which space holds at least one pair of the tube 10 and the rotor 3. Even upon damage to any one of the tubes 10, that arrangement causes no major influence on the tubes 10 and rotors 3 held in the other spaces 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a squeeze pump for building coating materials such as mortar, and more particularly, to a squeeze pump for feeding a fluid material such as mortar or grout material used for coating an outer wall of a building such as a building. Related to pumps.

[0002]

2. Description of the Related Art Mortar (made by mixing sand, cement, and water) and graft material (made from cement and water, and sand is not mixed) used as a coating material for the exterior walls of buildings and houses. When squeezing a fluid material such as mortar from a single point into two pumping paths using a squeeze pump for pumping, pressurizing with a single rotating shaft from the viewpoint of space saving and economy 2. Description of the Related Art There has been conventionally proposed an apparatus in which two rotors are driven to press two tubes (pumping tubes) serving as a flow path of a fluid material. This is provided in a pump case of one pump, two pumping tubes for providing a moving path of the mortar, one rotating shaft, and appropriately spaced from each other in the axial direction of the rotating shaft. It has two rotors.

[0003] Each of the rotors has an appropriate number of pressing hands for pressing one pumping tube by the rotation of the rotating shaft to pressure-feed the mortar inside the pumping tube. The above-mentioned pumping tube is a tube made of rubber or cloth, which is deformed into a crushed state by being pressed from the outside, and is returned to its original shape by stopping the pressing or after the mortar passes through the inside after the pressing is stopped. Restore. When the rotating shaft receives a rotational force from an externally provided motor and rotates, the pressing shaft squeezes the pumping tube against the inner surface of the pump case, thereby encouraging movement of the mortar in the pumping tube. It is.

[0004] The mortar pressurized by the squeeze pump is combined and sent out to another.

[0005]

However, in such a squeeze pump, when one pumping tube ruptures and mortar, which is the pumped material, leaks, the other pumping tubes and the rotor in the pump case also flow out. It became inoperable under the influence of mortar. This is because the inside of the pump case forms one space and there is nothing to partition the pumping tubes, so if mortar flows out from one damaged pumping tube,
This is because the other pumping tube and its rotor are immediately immersed in the mortar that has flowed out. For this reason, the breakage of one pumping tube also affects the pumping of another pumping tube, which significantly impairs the processing efficiency of the entire apparatus. The present invention provides a squeeze pump that does not affect the pumping of another pumping tube even if one pumping tube ruptures, and aims to solve the above problem.

[0006]

A squeeze pump for a building coating material such as mortar according to the first invention of the present application is a moving path of a fluid material such as mortar or grout used for coating an outer wall of a building such as a building. A plurality of pumping tubes 10..., A series of rotating shafts 2, and a plurality of rotors 3... 3 disposed on the rotating shafts 2. The following configuration is adopted for a device having an appropriate number of pressing hands 30... 30 that presses each pumping tube 10 by the rotation of 2 and pressure-feeds the fluid material inside the pumping tube 10. That is,
The squeeze pump 1 has a housing space 1 for housing at least one set of a pumping tube 10 and a rotor 3.
4 are provided, and each accommodation space 14... 14 is characterized in that a space between adjacent accommodation spaces 14 is partitioned by the partition wall 4.

For this reason, the pumping tubes 10.
Even if one of them is damaged and the fluid material being pumped out flows out, it is hindered by the partition wall 4 and it is difficult for the outflow to enter the other storage space 1. Therefore, other accommodation space 1
It does not greatly affect the pumping tube 10 and the rotor 3 in the inside.

A squeeze pump for a building coating material such as mortar according to a second aspect of the present invention is the squeeze pump according to the first aspect of the present invention, wherein the partition wall 4 includes a rotating shaft 2.
Characterized by having a bearing of

Therefore, a large number of pumping tubes 10...
Even if the rotating shafts 2 become longer by additionally providing the rotors 3 to perform the pressure feeding of the pressure 10, the accommodating spaces 14 ... 14 accommodating the rotors 3 ... 3 increase.
By increasing the number of the partition walls 4 that divide the partition 14, the number of locations where the rotating shaft 2 is supported increases. For this reason, the rotation shaft 2 is less likely to bend due to the reaction during the pump operation.

The squeeze pump for building coating materials such as mortar according to the third invention of the present application is the squeeze pump for building coating materials such as mortar according to the first or second invention of the present application. .. Are connected to each other at their discharge sides to discharge. The pressing hands 30 of the rotors 3.
30 has a different phase from the pressing hands 30... 30 of the other rotors 3.

As described above, by making the phases of the pressing hands 30... 30 different between the rotors 3. 3, the pumping tubes 10. The pulsation of one pumping tube 10 that occurs can be shifted with respect to the pulsation of another pumping tube 10. As a result, the amplitude of the pulsation does not match at the merge on the discharge side, that is,
In addition to avoiding a situation in which the peaks and valleys of the pulsation are matched to amplify the pulsation, the pulsation can be made uniform (mitigated).

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1, 2, 3 and 4 show an embodiment of the present invention. FIG. 1 shows a side view of a squeeze pump according to the present invention in use. FIG.
(A) shows a state in which the squeeze pump according to the present invention is viewed from the direction of arrow X in FIG. 1, that is, a schematic front view. FIG. 2B is a plan view of a section K in FIG. FIG. 3A is a schematic vertical sectional view of a main part, and FIG.
Shows a schematic perspective view thereof. FIGS. 3 (A) and 3 (B)
The details are simplified for use as illustrations showing the operating state of the pump. FIG. 4 is a schematic plan view of a pipe on the discharge side of the pump.

In the squeeze pump according to this embodiment, two tubes (pumping tubes) are pumped by two rotors. The squeeze pump 1 is mounted on a truck 6 as shown in FIG. FIG.
Numerals 60 and 60 denote casters of the trolley 6, and 61 denotes a handle of the trolley 6. FIG. 1 shows a state in which the squeeze pump 1 is carried to a position where a separate hopper 5 is located on the carriage 6, and the squeeze pump 1 is connected to the hopper 5.

The hopper 5 is supplied with mortar (or grout material) to be transported to another. 1 in FIG.
A pipe for sending mortar charged into the hopper 5 to the squeeze pump 1 is shown. 51, 51 are hoppers 5
Is shown. In FIG. 2A, the hopper 5 is shown by a broken line and the pipe 50 and the columns 51 are omitted in order to avoid complication of the drawing. As shown in FIG. 1, the pipe 50 is
a and two horizontal portions 50b, 50b branching from the hanging portion 50a and extending horizontally. FIG. 2 (B)
Is a plan view of the two horizontal portions 50b, 50b constituting the horizontal section K of the pipe 50.

The squeeze pump 1 will be described. This squeeze pump 1 has two pumping tubes 10, 10, two corresponding pump cases 400, 400, two rotors 3, 3, a motor 7 as a driving means thereof, and one With the rotating shaft 2 of
It is configured.

The pumping tubes 10, 10 are deformable tubes made of rubber or cloth that provide a path for moving the mortar. Here, the deformation is mainly an elastic deformation, but it is sufficient if the mortar is capable of swelling when the mortar is clogged (filled) inside and crushable when pressed from the outside, and is limited to a completely elastic deformation. Not done.

Each of the pump cases 400, 400 is a drum-shaped case, and has a support leg 43 formed at a lower portion thereof. The support legs 43, 43 are fixed to the upper surface of the carriage 6. As shown in FIG. 3A, the drum-shaped (columnar) pump case 400 is formed by walls 4 and 4a forming the bottom surface of the drum and a side peripheral portion 4b of the drum. Since the pump case 400 is arranged with the drum lying sideways, the walls 4 and 4a form the left and right sides of the pump case 400. Of the walls 4, 4a, the wall 4 facing the adjacent pump case 400 is the partition according to claim 1 (hereinafter, this wall 4 is referred to as partition 4).

The inside of each of the pump cases 400, 400 forms a housing space 14 in which the rotor 3 and the pumping tube 10 can be housed. In both pump cases 400, 400, insertion holes 40, 40 communicating with the inside are formed substantially in the center of both wall portions (more precisely, the partition wall 4 and the wall portion 4a, respectively). This insertion hole 4
Reference numerals 0 and 40 are formed as bearings of the rotating shaft 2, and the rotating shaft 2 is inserted therethrough. As a result, the rotary shaft 2 is inserted into both the pump cases 400, 400 and is horizontally supported by the pump cases 400, 400. The pump case 400 is suitably formed by fixing and fixing two casing members formed into a left and right half shape together by appropriate means such as bolting (not shown).

Each of the pump cases 400 is provided in the interior, that is, the accommodation space 14, of the two pumping tubes 10, 10.
Each of the ten is accommodated. In the pump case 400 (accommodation space 14), the pumping tube 10
Is the inner peripheral surface (side peripheral portion 4) of the drum-shaped pump case 400.
(inside b), it is disposed in a state of being curved in a U-shape.

Further, the front of each pump case 400 has a lower opening 41 at the lower part and an upper opening 42 at the upper part. The suction-side end 10a of the pumping tube 10 housed through the lower opening 41 is exposed to the outside through the upper opening 42 to the discharge-side end 10b of the pumping tube 10.

As shown in FIG. 3A, the rotating shaft 2
The two rotors 3, 3 are spaced apart from each other in the axial direction.
Has been fixed. The rotors 3, 3 are the same as the rotating shaft 2, and rotate when the rotating shaft 2 rotates. As shown in FIG. 3A, the left-hand rotor 3 is housed in the housing space 14 inside the left-hand pump case 400, and the right-hand rotor 3 is housed in the housing space 14 inside the right-hand pump case 400. The space in the axial direction of the rotating shaft 2 has a size necessary to cover at least the rotors 3 and 3 with the pump cases 400 and 400. The rotating shaft 2 includes a pulley 20 at the left end (FIGS. 1 and 2A).

Each rotor 3 has two pressing hands 30, 30, as shown in FIGS. 3A and 3B (FIG. 3B).
Is drawn with the pump case 400 omitted.) The pressing hands 30, 30 extend in opposite directions with respect to the rotating shaft 2. That is, both pressing hands 30 and 30 are mutually 18
The rotating shaft 2 is provided at an angle of 0 degrees. Each of the pressing hands 30, 30 has a pressing roller 31 at its tip.
Is fixed to the shaft. The pressing hand 30 has a length capable of pressing the roller 31 at the tip against the pumping tube 10 in the pump case 400. To be precise, press hand 3
0 has a length that allows the pumping tube 10 to be pressed and deformed. As shown in FIG. 3 (B), the phases (angles) of the pressing hands 30, 30 with respect to the rotation axis 2 are different for the rotors 3, 3 so that the directions of the pressing hands 30, 30 do not match each other. I do.

The motor 7 has a pulley 70 and a belt 71 (FIG. 1). The belt 71 is hung on the pulley 70 and the pulley 20 of the rotating shaft 2. Through this belt 71, the motor 7 supplies the rotating power to the rotating shaft 2 to drive both rotors 3,3.

In the squeeze pump 1 described above, as shown in FIG. 1, the suction side ends 10a, 10a of the two pumping tubes 10, 10 are connected to the respective ends of the horizontal parts 50b, 50b of the pipe 50 of the hopper 5. Is done. Further, as shown in FIG. 4, both of the discharge side ends 10b, 10b of both the pumping tubes 10, 10 are moved toward the mortar pumping destination by Y.
The Y-tube 8 is omitted in FIGS. 1 to 3. As a result, the mortars merge on the discharge side (T indicates the discharge direction).

Then, by driving the motor 7 to rotate the rotating shaft 3, the pressing hands 30, 30 constituting the rotor 3 are rotated.
Is rotated, and the rollers 31 at the tip end are connected to the pump case 4.
3 against the pumping tube 10 in FIG.
(A) and (B)). With this, the pumping tube 10
It is pressed inside the side peripheral portion 4b of the pump case 400. That is, the inside of the side peripheral portion 4b is the pumping tube 1
0 to form a pressed portion. Rollers 31, 31
Mimics the inside of the pumping tube 10 arranged in a U-shape. The pumping tube 10 is now in contact with the pressing hand 3
According to the rotation direction r of 0, 30, the rollers 31 and 31 and the inner peripheral surface of the pump case 400 side peripheral portion 4b are sequentially sandwiched, and the mortar inside is pumped (FIG. 3).
(A)).

As described above, the advantage of not aligning the directions of the pressing hands 30, 30 is as follows. When the directions of the pressing hands 30, 30 are aligned, both rotors 3, 3 simultaneously
The rollers 31, 31 at the tips of the pressing hands 30, 30 are connected to the pumping tubes 10, 10 in the respective pump cases 400, 400.
, And the pumping tubes 10,
The rotating shaft 2 receives the resistance received from the rotor 10 from both the rotors 3 and 3 at a time. By shifting the phase as described above, a sudden load on such a device can be reduced.

When the directions of the pressing hands 30, 30 are made to coincide with each other, the pumping tube 1 caused by the pressing is pressed.
The amplitudes of the pulsations of 0 and 10 coincide with each other, and the peaks of the pulsations overlap at the merging point on the discharge side, and the pulsations are amplified. On the other hand, as described above, the phases of the pressing hands 30, 30 are shifted, and the pressing hands 30,
If the orientations of the directions 30 are avoided, the pulsation at the discharge-side confluence overlaps with its peak shifted, avoiding the amplification, and conversely, due to the superposition of the waves, the pulsations cancel each other out. Working, the pulsation after merging is reduced.

Specifically, the discharge pressure of a normal pump is about 1
A 5~30kg / cm ^2, if the conventional pulsation Shojire, although variation of about 5 kg / cm ² of ejection pressure occurs, which has made it possible to stop the fluctuations of about 1 kg / cm ² . For example, when the discharge pressure is 15 kg / cm ² , the conventional discharge pressure fluctuates up to 20 kg / cm ² (+5 kg / cm ² ). cm ² (+1 kg / c
m ² ).

When one of the pumping tubes 10, 10 is torn during the mortar pumping, the two pump cases 400, 40 formed separately as described above.
0, the pumping tubes 10, 10 and the rotors 3, 3 are separately coated, so that the mortar does not enter the other pump case 400 and the other pump case 400 It does not hinder the operation of the rotor 3 and the pumping tube 10 inside.

That is, each pump case 400 provides the accommodation space 14 and the partition wall 4. The partition wall 4 provided in the pump case 400 functions as a partition wall that partitions the other pumping case 4. Further, a portion other than the partition wall 4 of the pump case 400, for example, the partition wall 4
The wall portion 4a located on the opposite side to the pump case 4 is also used for the effluent (mortar) from the ruptured pumping tube 10.
00, which is effective in minimizing the deterioration of the apparatus due to effluent (mortar).

Further, even if effluent leaks from another pump case 400 to the outside, the partition wall 4 of the pump case 400 accommodating the normal pumping tube 10 will be described.
Can prevent the infiltration of this effluent. Therefore, due to the presence of the respective pump cases 400, 400, the partition wall 4 is formed double, and the normal pumping tube 10 and its rotor 3 can be reliably protected.

As shown in FIG. 3A, a plurality of shafts formed separately are connected by a coupling 32 for each pump case 400 to form a single rotating shaft 2. . By forming in this manner, for example, FIG.
When the pumping by the pumping tube 10 on the right hand in (A) becomes unnecessary, the drive of the rotor 3 with respect to the pumping tube 10 can be easily removed by removing the coupling 32. Conversely, by using the connection structure of the coupling 32, the pumping tube 1
0 and the rotor 3 can be easily added.

Further, through the coupling 32, the phase of the pressing hands 30, 30 of the left and right rotors 3, 3 can be easily selected and adjusted. That is, according to the convenience of the pressure feeding,
Various phase differences can be set. In FIG. 3B, the coupling 32 is omitted to avoid complication of the drawing. However, coupling 32
Can be implemented without being provided if unnecessary.

Also, the same effect as in the case of using the coupling 32 can be obtained by forming the rotating shaft 2 via a power transmission means such as a clutch instead of the coupling 32. It is. Further, when a clutch is used, the supply of rotational power to the rotor 3 having the pumping tube 10 broken can be easily stopped, which is convenient. This is because the driving force can be easily cut off by disengaging the clutch, and the driving of the rotor 3 corresponding to the undamaged pumping tube 10 can be continued.

In the above-described embodiment, the number of the pressing hands 30 provided on the rotor 3 is two.
It is also possible to implement the present invention as a unit having a larger number of units.

Further, in the above embodiment, two pumping tubes 10, 10 and two rotors 3, 3
The squeeze pump provided with the pumping tube is not limited to the squeeze pump, but is not limited thereto.
The present invention can be practiced even if it is provided with zero and three or more rotors 3.

Further, each of the plurality of pump cases 400, 400 supports the rotating shaft 2 passed through the insertion hole 40, 40, and increases the number of the pumping tubes 10 to be pressed to increase the number of the corresponding rotors 3. When the number is increased, the pump case 400 is also increased accordingly. Therefore, the load on one pump case 400 is small, and even if the thickness of each pump case 400 is not increased in order to obtain strength for expansion, the rotating shaft 2 is bent by the reaction of the pressure feeding. I have no choice. Therefore, smooth pumping can be performed as it is, and it is economical.

In the above-described embodiment, each of the two pump cases 400 and 400 provides a partition. However, unlike such an embodiment, the squeeze pump 1 has one pump case 400. It is assumed that all the sets of the above-described pumping tubes 10 and the rotor 3 are accommodated therein, and a partition is provided as a partition in the pump case 400 so that the pumping tubes 10 and 10 are connected to each other. Are separated from each other by the partition, so that each of the rotors 3, 3 corresponding to
4 can also be implemented.

That is, as shown in FIG. 5, the squeeze pump 1 includes a plurality of pumping tubes 10.
It is provided with a series of rotating shafts 2 and a plurality of rotors 3... 3 arranged on the rotating shaft 2, and the discharge side of each pumping tube 10 merges and discharges the fluid material. Yes,
Each rotor 3 has an appropriate number of pressing hands 30 that presses each pumping tube 10 by the rotation of the rotation shaft 2 to pressure-feed the fluid material inside the pumping tube 10. Partly, the pressing hand 3
0 makes the phase different from that of the pressing hand 30 of the other rotor 3. The squeeze pump 1 includes one pump case 400, in which the pumping tubes 10 and 10 and the rotor 3
. 3 are provided, and a partition wall 4 is provided as a partition in the pump case 400. By the partition wall 4, at least one set of the pumping tube 10 and the rotor 3 is provided in the pump case 400. A plurality of housing spaces 14 are formed to define and house another set of the pumping tube 10 and the rotor 3.

FIG. 5 shows two pumping tubes 1
Although 0 and 10 and the two corresponding rotors 3 and 3 are accommodated in the pump case 400, the present invention is not limited to such a number. The present invention can be implemented even if three or more are combined. The configuration other than the above is the same as the embodiment shown in FIGS.

As described above, one pump case 400
By providing a partition as a partition 4 in the inside, only one partition 4 is provided between a pair of adjacent pumping tubes 10 and the rotor 3, and only one partition 4 is provided in the embodiment shown in FIGS. As described above, there is no need to dispose an extra partition between a pair of the adjacent pumping tubes 10 and the rotor 3, that is, to eliminate waste that the partition 4 becomes two sheets by providing two pumping cases 400. As a result, it is possible to reduce the manufacturing cost and the cost.

[0042]

According to the first embodiment of the present invention, even if one pumping tube is damaged, the other pumping tube and the rotor are not affected, so that the processing capacity is significantly reduced as in the prior art. It does not happen. Further, unlike the conventional case, the number of rotors is not limited by the accommodation capacity of one pump case, so that the number of rotors can be easily increased later, and it is possible to flexibly cope with the installation of a large number of pumping tubes. .

By implementing the second invention of the present application, the effect of the first invention is obtained, and the number of rotors interlocked to perform the pumping of a large number of pumping tubes is increased, so that the rotations shared by the rotors are increased. Even if the shaft becomes long, it does not bend significantly. For this reason, more rotors can be linked without worrying about the bending of the rotation shaft as described above. Therefore, more rotors can be operated without having to make efforts to increase the wall thickness of the pump case to increase the support strength.

By implementing the third invention of the present application, the effects of the first or second invention can be obtained, the load applied to the device during operation can be reduced, the life of the device can be extended, and the discharge side can be further improved. In addition, the pulsation of the pumping tube after the merging was alleviated, and smooth pumping was enabled.

[Brief description of the drawings]

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

FIG. 2A is a front view of the embodiment,
(B) is a plan view of the main part.

FIGS. 3A and 3B are explanatory diagrams showing an operation state of the embodiment.

FIG. 4 is a schematic plan view showing a discharge-side pipe of the embodiment.

FIG. 5 is an explanatory diagram showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Squeeze pump 2 Rotating shaft 3 Rotor 4 Partition wall 10 Pumping tube 14 Housing space 400 Pump case

Claims (3)

[Claims] 1. A plurality of pumping tubes (10) serving as a moving path of a fluid material such as mortar or grout used for painting an outer wall of a building such as a building, and a series of rotating shafts.
(2), and a plurality of rotors (3) disposed on the rotating shaft (2).
Each of the rotors (3) presses each of the pumping tubes (10) by the rotation of the rotation shaft (2), and
(10) An appropriate number of pressing hands for pumping the fluid material inside
A squeeze pump for building coating materials such as mortar having (30), wherein at least one set of a pumping tube (10) and a rotor is provided.
And a plurality of accommodation spaces (14) for accommodating (3), and each accommodation space (14) has a partition between adjacent accommodation spaces (14).
(4) A squeeze pump for building materials such as mortar, characterized by being partitioned by (4). 2. The squeeze pump according to claim 1, wherein the partition wall (4) is provided with a bearing for a rotating shaft (2). 3. The plurality of pumping tubes (10) merge and discharge the fluid material on the discharge side thereof, and the pressing hand (30) of each rotor (3) is Pressing hand of the rotor (3)
The squeeze pump for building materials such as mortar according to claim 1 or 2, wherein the phase is different from that of (30).