JPH03270763A - Viscous solution coating apparatus - Google Patents

Abstract

PURPOSE:To uniformly apply a viscous solution to a wide plane by providing a variable speed positive displacement pump pumping up the viscous solution in a container to feed the same to the base end part of an operation rod through a flexible hose and an opening and closing valve capable of opening and closing the viscous solution passage in the operation rod in the vicinity of the leading end part of the passage. CONSTITUTION:When a viscous solution is uniformly applied to a wide plane, a worker operates the start and stop switch of the positive displacement pump 3 provided to the operation rod 1 held by his hand not only to start the driving of the positive displacement pump 3 but also to open the opening and closing valve 17 of the viscous solution passage of the lower end part 20 of the operation rod 1. Whereupon, the viscous solution sent from the pump 3 is sent to the coating nozzle 11 provided to the leading end part of the operation rod 1 through the passage in the rod 1. Since the viscous solution is continuously sent to the coating nozzle 11 in this state, the worker operates the operation rod 1 to move the coating nozzle 11 along the plane in the same manner as a vacuum cleaner and may apply the viscous solution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for uniformly applying a viscous liquid to a wide flat surface.

In this specification, the viscous liquid specifically refers to a viscous material applied to a floor surface, such as adhesive, paint, or wax.

[Prior Art] As a dedicated device for uniformly applying a viscous liquid over a wide plane, a compact device has not originally been used. The conventional method used in such cases is: - A worker holds a container of viscous liquid under his arm and pours an appropriate amount of viscous liquid onto the floor through a hole drilled in the top of the container. Move while taking out. On the other hand, the other worker, in a crawling position on the floor, holds a comb trowel in his hand and uses it to stroke the floor, evenly applying the viscous liquid to the floor. The method is to attach it.

[Problems to be solved by the invention] This conventional method is an extremely primitive work style, and the worker is forced to maintain an unreasonable posture, resulting in severe fatigue and damage to the hands. If staining with viscous liquid is unavoidable and the viscous liquid is water-based,
Although it can be removed by washing immediately with water, there are problems such as the fact that it is a dirty job and is often avoided.

The present invention has been made in view of these conventional problems, and enables the work of uniformly applying a viscous liquid to a wide flat surface to be performed by only one worker; can be easily carried out from beginning to end by holding the control rod in your hand like a vacuum cleaner and moving on a flat surface while staying upright. 2) Supplying viscous liquid to the nozzle attached to the tip of the control rod. Various operations such as starting and stopping the feeding, controlling the feeding amount and feeding speed of the viscous liquid, and closing the viscous liquid passage at the lower end, etc., are performed using the operating rod. 3) By placing the viscous liquid supply pump and viscous liquid container on the carrier, it is very easy to keep the viscous liquid supply source close to the worker. The object of the present invention is to provide a viscous liquid applicator that can be carried along with the user.

[Means for Solving the Problems] In order to achieve the above object, the viscous liquid application device of the present invention uniformly applies a viscous liquid to a wide plane, and has a viscous liquid passage inside. a tubular operating rod that can be operated by the hands of an upright worker;
A variable speed positive displacement pump that pumps out the viscous liquid in the container and supplies it to the base end of the operating rod via a flexible hose, and a passage for the viscous liquid inside the operating rod that can be opened and closed near the tip thereof. It is equipped with an on-off valve and a coating nozzle that is removably attached to the tip of the operating rod, and has respective means for operating the on/off switch of the positive displacement pump, adjusting the speed, and opening/closing the on-off valve. Both are attached to the control rod.

Further, it is convenient to mount a positive displacement pump for pumping the viscous liquid together with a container for the viscous liquid on a carrier that can be followed by the operator.

[Operation] In order to uniformly apply a viscous liquid to a wide flat surface using the viscous liquid applicator of the present invention, the operator must turn on/off the displacement pump attached to the operating rod in his/her hand. At the same time as starting the drive of the mold pump, the on-off valve of the viscous liquid passage at the bottom end of the operating rod is opened, and the viscous liquid sent from the pump is sent through the internal passage of the operating rod to the coating nozzle attached to the tip. be able to do so. As a device for this action, for example, a lever for operating the pump on/off switch and a lever for opening/closing the on-off valve at the base end of the operating rod are connected to each other by a common link or the like. This is useful for performing related operations.

In this state, the viscous liquid is continuously sent to the coating nozzle, so the operator operates the operating rod to move the coating nozzle along a flat surface in the same way as a vacuum cleaner. Just apply it.

Viscous liquids have an optimal feeding speed depending on their viscosity, drying speed characteristics, and required coating thickness, and it is necessary to match the viscous liquid feeding speed from the pump to this optimal speed. be. This speed adjustment is performed by the operator using an adjustment means provided on the operating rod to match the progress speed of the work and to immediately respond to the result while visually confirming the result of coating on a flat surface. It can be easily done according to the instructions.

When the coating process is finished, the pump is stopped using the pump on/off switch, and at the same time, the on-off valve at the tip of the operating rod is closed. This prevents the viscous liquid 1 from dripping after the work is finished, allowing for clean and efficient work.

[Example] An example will be described with reference to the drawings. In FIGS. 1 to 4, a tubular operating rod 1 has a passage 2 for viscous liquid inside, and is operated by an upright worker A. It is possible to hold it and operate it.

A variable speed positive displacement pump 3 is inserted into a tank 4 serving as a container for viscous liquid, sucks the viscous liquid in the tank 4 from a suction port at the bottom, and pumps it toward a flexible hose 6 from a discharge port 5 at the top. and send it out. The flexible hose 6 has one end connected to an upper discharge port 5 of the pump 3 via a quick coupling 7, and the other end connected to an upper end (base end) 8 of the operating rod 1 via a quick coupling 7. be done.

Both the pump 3 and the tank 4 are placed on a carrier 9. Note that the positive displacement pump 3 shown in this example is as follows:
- An example of an eccentric screw pump is shown in Figures 5(a) and (b).
The details are shown below.

A water tank 10 is placed on the transport vehicle 9 on the outside. When a viscous liquid that hardens upon contact with air is used in the water tank 10, the coating nozzle 11 attached to the lower end (tip) of the operating rod 1 is immersed in the water tank 10 immediately after use. This is to protect the coating nozzle 11 from hardening of the adhered viscous liquid by blocking contact with air.

The pump 3 includes an inverter control panel 12.

The rotation speed of the rotor of the pump 3 is controlled electrically using inverter control. This makes it possible to drive a 200V three-phase motor with a 100V power source.

The coating nozzle 11 is detachably attached to the lower end (tip) of the operating rod l.

The operating rod 1 is operated by operator A, as shown in detail in FIG.
A limit switch 13 that functions as an on/off switch for the pump 3 and a cam 14 for turning it on and off are formed in a part of the pump 3 at the height of the hand when the pump is held upright. A lever 15 is provided.

The limit switch 13 and cam 14 are covered by cover 1.
Covered by 6. When the lever 15 is grasped by hand and swung between angles α, the limit switch 13 is turned on and off by the action of the cam 14. At the same time, due to this swing, one end is pivoted on the lever 15, and the other end is pivoted on the lever 18 for opening and closing the opening/closing valve ]7.
9 is moved to remotely open and close the on-off valve 17.

In the vicinity of the lower end (tip) 20 of the operating rod I, as shown in FIGS. 3 and 4, an on-off valve 17 for opening and closing the passage 2 within the operating rod I is provided. By rotating the valve body 21 of the on-off valve 17 via the lever 18 by movement of the link 19, communication and blocking of the passage 2 are reliably performed.

Various types of coating nozzles 11 are used depending on the purpose or use. Usually, the tip is shaped like a T-shape, resembling the tip of a vacuum cleaner, for example, with the intention of increasing the area coated with one stroke of the nozzle. Often used. this,
It is detachably attached to the lower end portion 20 of the operating rod I via a joint.

A preferred example of the coating nozzle 11 is shown in the sixth section. Shown in FIGS. 7 and 8. In the figure, the main body 23 of the nozzle has a horizontally long cylindrical chamber 24 for storing the viscous liquid therein, an inlet 25 for the viscous liquid on the top surface, and a bottom surface 26. A number of holes 27 are bored in the chamber 24 to allow the viscous liquid in the chamber 24 to flow downward.

A plate-shaped comb-like nozzle 28 is provided on both laterally long sides of the main body 23, that is, the front and rear surfaces, so as to be slidable in the vertical direction. Further, cover plates 29 are attached to both end surfaces of the main body 23,
A roller 3o is provided at the lower end so that the coating nozzle can be easily moved on the floor by shifting the roller 30.

Below the bottom surface 26 of the main body 23 is a space 31 surrounded on all sides by a pair of nozzles 28, a pair of lid plates 29, and rubber plates 28a and 29a for closing the gaps therebetween.
is formed. The viscous liquid flowing downward from the hole 27 accumulates in the space 3J, and as the coating nozzle moves, the viscous liquid flows from the comb 32 of the comb nozzle 28 at a constant pitch p.
It is applied in parallel streaks. Comb nozzle 28
The spring 33 provided at the top of the comb nozzle 28 is for preventing the tip of the comb nozzle 28 from tilting to one side when the coating nozzle is moved and thereby lifting the tip of the comb nozzle 28 from the floor surface.

The operating rod 1 is further operated by the operator A as shown in FIG.
A dial 22 for adjusting the speed of the pump 3 is provided at a location corresponding to the height of the hand when the pump is held upright. By operating the dial 22, the rotational speed of the drive motor of the pump 3 can be remotely controlled, and the feeding speed of the viscous liquid from the pump 3 can be arbitrarily adjusted.

Adjustment of the rotational speed of the pump 3 and operations for starting and stopping the pump 3 can of course be performed on the inverter control panel 12 in addition to remote control from the operating rod 1.

In order to apply a viscous liquid onto a floor surface using the viscous liquid applicator configured as described above, the operator holds the operating rod 1 in one hand and places the lever 15 in the position shown in the figure with the other hand. The pump 3 is activated by the operation of the limit switch 13,
The pump 3 starts feeding the viscous liquid. At the same time, due to the movement of the link 19 in conjunction with the movement of the lever 15, the valve body 21 of the on-off valve 17 rotates, and the opening of the valve body 21 becomes the state shown in FIG. 4, allowing the viscous liquid to pass through. to flow toward the coating nozzle 11. Usually, the coating nozzle 11
For example, as in the case of this example, many of these have a structure that allows application by pushing forward and pulling back in the same direction.In such cases, the application method of the present invention By using the device, the worker's posture during work is completely relaxed, labor consumption is significantly reduced, and work is performed with particularly high efficiency.

In the middle of work, for example, to change direction or to temporarily interrupt work, the lever 15 is pulled down to stop the operation of the pump 3. At this time, the lever 18 for the on-off valve 17 is interlocked to remove the viscous liquid. Since the passage is blocked at the point closest to the coating nozzle 11, no dripping of the viscous liquid occurs, and a neat and neat work is achieved.

When the work is completed, if the viscous liquid used is one that hardens on contact with air, remove the coating nozzle 11 attached to the lower end (tip) of the operating rod after use. The coating nozzle 11 can be protected from hardening of the adhered viscous liquid by immersing it in a water tank 10 on the carrier 9 and blocking contact with air.

1. Effects of the Invention] Since the viscous liquid coating device according to the present invention is configured as described above, it has the following effects.

l) The work of uniformly applying viscous liquid to a wide flat surface,
- Can be carried out by a single worker, who can easily carry out the work from beginning to end by holding the operating rod in his hand, similar to a vacuum cleaner, and moving within the plane while staying upright. .

2) Start and stop of feeding viscous liquid to the nozzle attached to the tip of the operating rod, control of the amount and speed of feeding of viscous liquid, and the lower end of the operating rod when feeding is stopped. Various operations such as closing the viscous liquid passage can be easily performed from a position on the operating rod at hand, while remaining in an upright position.

3) By placing the viscous liquid supply pump together with the viscous liquid container on the transport vehicle, the viscous liquid supply source can be kept close to the worker at all times, resulting in highly efficient work. It can be performed.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the usage state of an embodiment of the viscous liquid coating device according to the present invention, FIG. 2 is an enlarged view of the section ■ in FIG. 1, and FIG. 3 is an enlarged view of the section ■ in FIG. 1. FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3, and FIG.
Figure (b) is a bottom view showing the lower suction port provided on the bottom surface, Figure 6 is a longitudinal cross-sectional view of the coating nozzle in Figure 1, Figure 7 is a cross-sectional view of the center thereof, and Figure 8 is an enlarged view of part ■ in FIG. 1. Operation rod, 2. Passage, 3. Positive displacement pump, 4.
・Tank, 6・Flexible hose, 8...Top end,
9.Transportation truck, 11.Coating nozzle, 12.Inverter control panel, 13.Limit switch, 15.18.
・Lever, 17... Opening/closing valve, 20... Lower end, 22...
Dial.

Claims (1)

[Scope of Claims] 1. An apparatus for uniformly applying a viscous liquid over a wide flat surface, including a tubular operating rod that has a passage for the viscous liquid inside and can be operated by the hands of an upright worker. , a variable speed positive displacement pump that pumps out the viscous liquid in the container and supplies it to the base end of the operating rod via a flexible hose, and a variable speed positive displacement pump that opens and closes the viscous liquid passage inside the operating rod near its tip. The pump is equipped with an on-off valve to obtain the on-off valve and a coating nozzle that is detachably attached to the tip of the operating rod, and each of which is used to operate the on/off switch of the positive displacement pump, to adjust the speed, and to open/close the on-off valve. A viscous liquid application device characterized in that both means are attached to an operating rod. 2. The viscous liquid coating device according to claim 1, wherein the positive displacement pump for pumping the viscous liquid is mounted on a carrier that can be followed by the operator together with the viscous liquid container.