JP2013078899A - Coating supply apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating supply apparatus capable of performing excellent force-feed of coating and reducing costs for production and maintenance.SOLUTION: The coating supply apparatus includes storage tanks Ta, Tb storing the predetermined amount of coating and formed with discharge ports A, B that can discharge the coating to the outside, and force-feeding means disposed in the storage tanks Ta, Tb to force-feed the coating stored in the storage tanks Ta, Tb from the discharge ports A, B. The force-feeding means have propeller-like members 1, 2 each formed with a plurality of blades, and can stir the coating within the storage tanks Ta, Tb while force-feeding the coating from the discharge ports A, B by the rotation of the propeller-like members 1, 2.

Description

  The present invention includes a storage tank in which a predetermined amount of paint is stored and a discharge port capable of discharging the paint to the outside is formed, and the paint disposed in the storage tank and stored in the storage tank. The present invention relates to a coating material supply apparatus provided with a pressure feeding means for pressure feeding from a discharge port.

  For example, spray coating using a spray gun is widely used as a method of applying a paint to a desired object. In such spray coating, a storage tank containing a predetermined amount of paint and a spray gun are usually communicated via a hose, etc., and the paint in the storage tank is pumped to the spray gun to eject the paint from the pre-gun. In addition, a coating material supply device that can be spray-coated on an object to be coated has been used.

  However, in the conventional paint supply apparatus, as a method of supplying paint from the storage tank to the spray gun or the like, by using a pump for feeding liquid, by sending air or the like into the storage tank and applying pressure Examples include those that are pumped, and those that are provided with a storage tank at a high place and are fed by the weight of the paint. Further, in the conventional paint supply apparatus, a stirring means is provided in the storage tank in order to equalize the temperature of the paint in the storage tank and prevent precipitation of additives such as pigments. In addition, since this prior art is not related to the literature known invention, there is no prior art document information to be described.

  However, in the conventional paint supply apparatus, it is necessary to separately provide a pressure feeding means for pumping the paint from the storage tank and a stirring means for stirring the paint in the storage tank. In addition, there is a problem that costs for maintenance and the like increase. In addition, in the case where the storage tank is disposed at a high place and the liquid is fed by its own weight, the pressure feeding means is unnecessary, but when using a highly viscous paint, the dead weight will cause insufficient pressure feeding force. There's a problem.

  The present invention has been made in view of such circumstances, and provides a coating material supply apparatus that can perform good pressure feeding of a coating material and can reduce manufacturing costs and maintenance costs. There is.

  According to the first aspect of the present invention, a predetermined amount of paint is stored, a storage tank in which a discharge port capable of discharging the paint to the outside is formed, and the storage tank is disposed in the storage tank. In the coating material supply apparatus comprising the pressure feeding means for pumping the coated paint from the discharge port, the pressure feeding means has a propeller-like member in which a plurality of blades are formed. It is characterized in that the paint can be stirred in the storage tank while the paint is pumped from the discharge port.

  According to a second aspect of the present invention, in the paint supply apparatus according to the first aspect, the storage tank is formed in a funnel shape toward the discharge port, and the propeller-like member is disposed near the discharge port. It was established.

  According to a third aspect of the present invention, in the paint supply apparatus according to the first or second aspect, a plurality of the storage tanks are provided to store different types of paints, respectively, A single driving means is connected to the propeller-like member, and each propeller-like member can be driven to rotate by the driving means.

  According to a fourth aspect of the present invention, in the paint supply apparatus according to the third aspect, a hose is extended from each discharge port of the plurality of storage tanks, and the paint is ejected toward a desired portion on the tip side of the hose. The spraying means which can be made to be connected, and different types of paint in the plurality of storage tanks can be mixed and jetted by the jetting means.

  According to the invention of claim 1, the pressure feeding means has a propeller-like member having a plurality of blades formed therein, and the paint is agitated in the storage tank while pressure-feeding the paint from the discharge port by the rotation of the propeller-like member. As a result, the propeller-like member can have both a paint pumping function and a stirring function, and the pumping of the paint can be performed well, and the manufacturing cost and the cost for maintenance can be reduced. it can.

  According to the invention of claim 2, the storage tank is formed in a funnel shape toward the discharge port, and the propeller-like member is disposed in the vicinity of the discharge port. The pumping and stirring of the paint can be performed simultaneously.

  According to the invention of claim 3, a plurality of storage tanks are provided to store different types of paints, respectively, and a single drive means is connected to the propeller-like member in each storage tank, Since each propeller-like member can be rotationally driven by the driving means, the driving means for the plurality of propeller-like members can be shared, and the manufacturing cost and the cost for maintenance can be further reduced.

  According to the invention of claim 4, the hose is extended from each discharge port of the plurality of storage tanks, and the spraying means capable of spraying the paint toward the desired portion is connected to the tip side of the hose, and the plurality Since different types of paints in the storage tank can be mixed and jetted by the jetting means, a plurality of paints can be mixed and a paint can be applied to an object to be coated.

The schematic diagram which shows the supply apparatus of the coating material which concerns on embodiment of this invention. Schematic showing the flow of paint in the storage tank in the paint supply device

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The coating material supply apparatus according to the present embodiment is for supplying a coating material to be applied to an object to be coated. As shown in FIG. 1, the storage tanks Ta and Tb, and a propeller-like member 1 as a pressure feeding means. 2, a motor 3 as driving means, and heating means 4, 5 are mainly provided, and paint can be supplied to a spray gun 6 as ejection means.

  The storage tanks Ta and Tb are tanks for storing predetermined amounts of different types of paints, and are formed with discharge ports A and B that can discharge the paints to the outside. The storage tanks Ta and Tb according to the present embodiment have funnel-shaped portions Taa and Tba whose bottom surfaces are reduced in diameter downward, and lower ends thereof open to form discharge ports A and B. ing. Note that the gradient angle of the funnel-shaped portions Taa and Tba can be arbitrarily set.

  Propeller-like members 1 and 2 as pressure feeding means are rotatably disposed in the storage tanks Ta and Tb, and the paint stored in the storage tanks Ta and Tb is transferred from the discharge ports A and B to the spray gun 6. On the other hand, it is pumped. Specifically, the propeller-like members 1 and 2 are made of a propeller-like member formed with a plurality of blades, and are connected to a motor 3 as a drive source via shafts L1 and L2.

  The shafts L1 and L2 are rotatably supported by a pair of upper and lower bearings B1 and B2 and bearings B3 and B4, and pulleys P1 and P2 are formed at the upper end. The pulleys P1 and P2 are connected to pulleys P3 and P4 formed on the output shaft 3a of the motor 3 via connecting belts V1 and V2, and the rotational force of the output shaft 3a of the motor 3 is applied to the shafts L1 and L2. It is transmitted to the propeller-like members 1 and 2 via.

  That is, in the present embodiment, the two storage tanks Ta and Tb are arranged to store different types of paints, respectively, and the propeller-like members 1 and 2 in the respective storage tanks Ta and Tb One motor 3 (driving means) is connected, and the propeller-like members 1 and 2 can be rotationally driven by the motor 3. In the present embodiment, the two propeller-like members 1 and 2 are rotationally driven by a single motor 3 (driving means), but the drive for rotationally driving the respective propeller-like members 1 and 2 is performed. The means may be provided separately.

  The heating means 4 and 5 can be heated and heated by energization, and are attached to the outer wall surface of the storage tanks Ta and Tb by a band (not shown) or the like and are stored in the storage tanks Ta and Tb. This is for maintaining the low viscosity by heating the paint. The heating means 4 and 5 are preferably provided with thermostats, and may not be provided depending on the type of paint to be stored in the storage tanks Ta and Tb.

  On the other hand, the discharge ports A and B are connected to hoses H1 and H2, each of which is made of a flexible tube or the like through which paint can be circulated, and these hoses H1 and H2 are connected to a static mixer via a check valve 7, respectively. Etc. are connected to the mixing means 8. This mixing means 8 mixes two kinds of paints pumped through the hoses H1 and H2 so that they are in a uniform state. A hose H3 made of a flexible tube or the like capable of circulating the mixed paints is provided. Via a spray gun 6 (spouting means).

  The spray gun 6 can spray the supplied paint in a spray shape toward a desired site, and in the present embodiment, the spray gun 6 is composed of a two-liquid mixing type having one (single mouth) outlet. . Then, when the operator operates the operation unit while holding the spray gun 6 and directing the spout toward the object to be coated, the paint is sprayed toward the object to be coated and can be applied. Has been. Note that the spray gun 6 may eject two or more nozzles or only one liquid (only paint supplied from one storage tank).

  Here, in this embodiment, the propeller-like members 1 and 2 are disposed in the vicinity of the discharge ports A and B in the storage tanks Ta and Tb, and the paint is pumped from the discharge ports A and B by the rotation thereof. However, the paint can be stirred in the storage tanks Ta and Tb. That is, when the propeller-like members 1 and 2 rotate, as shown in FIG. 2, the paint in the storage tanks Ta and Tb flows toward the discharge ports A and B, and a part of the paint flows from the discharge ports A and B. The flow a flows out to the hose H1, H2 side, and the other flows into the flow b flowing into the upper side of the storage tanks Ta, Tb.

  Thus, the flow a flowing out from the discharge ports A and B toward the hoses H1 and H2 allows the paint in the storage tanks T1 and T2 to be pumped and the flow b flowing into the upper side of the storage tanks Ta and Tb. Thus, since the paint can be stirred in the storage tanks Ta and Tb, the paint can be fed and stirred at the same time. It should be noted that the flow a for pumping and the flow b for stirring do not necessarily have to be the same amount, and the ratio thereof is the gradient angle of the funnel-shaped portions Taa and Tba and the rotation speed of the propeller-like members 1 and 2. Alternatively, it can be set arbitrarily by changing the shape of the blades of the propeller-like members 1 and 2.

  In particular, in the present embodiment, the storage tanks Ta and Tb are formed in a funnel shape toward the discharge ports A and B, and the propeller-like members 1 and 2 are disposed in the vicinity of the discharge ports A and B. Therefore, the rotation of the propeller-like members 1 and 2 allows the coating material to flow more favorably and smoothly to the discharge ports A and B, and can surely perform the pressure feeding and stirring. Yes. The propeller-like members 1 and 2 are preferably disposed in the vicinity of the boundary where the funnel-shaped portions Taa and Tba are formed, and between the tip of the blade and the inner wall surface of the storage tanks Ta and Tb. It is preferable to ensure a flow b by forming a gap of a predetermined dimension.

  According to the above-described embodiment, the pressure feeding unit has the propeller-like members 1 and 2 formed with a plurality of blades, and is pumping the paint from the discharge ports A and B by the rotation of the propeller-like members 1 and 2. Since the paint can be stirred in the storage tanks Ta and Tb, the propeller-like members 1 and 2 can have both the paint pressure feeding function and the stirring function, and the paint pressure feeding can be performed satisfactorily. Manufacturing costs and maintenance costs can be reduced.

  The storage tanks Ta and Tb are formed in a funnel shape toward the discharge ports A and B, and the propeller-like members 1 and 2 are disposed in the vicinity of the discharge ports A and B, so that the storage tanks Ta and Tb are more efficient. Can simultaneously feed and agitate the paint from the discharge ports A and B. Further, a plurality of storage tanks Ta and Tb are provided to store different kinds of paints, respectively, and a motor as a single driving means is provided for the propeller-like members 1 and 2 in the storage tanks Ta and Tb. 3 and the propeller-like members 1 and 2 can be rotationally driven by the motor 3, so that the drive means for the plurality of propeller-like members 1 and 2 can be shared by the motor 3 and manufactured. Costs and maintenance costs can be further reduced.

  Furthermore, the hoses H1 and H2 are extended from the discharge ports A and B of the plurality of storage tanks Ta and Tb, respectively, and are connected to the distal ends of the hoses H1 and H2 (via the check valve 7 and the mixing means 8). A spray gun 6 (spout means) capable of spraying paint toward a desired site is connected, and spraying can be performed with the spray gun 6 while mixing different types of paint in the plurality of storage tanks Ta and Tb. As a result, the coating material can be applied to the object to be coated while mixing a plurality of coating materials more satisfactorily.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, the present embodiment has a single storage tank or three or more storage tanks (each storing different types of paints). It is also possible to have a storage tank). Further, in this embodiment, the spray gun 6 is used as the spraying means, but any other form can be used as long as the paint pumped from the inside of the storage tank can be sprayed toward the desired part. Also good. In addition, it may replace with the motor 3 which concerns on this embodiment, and is good also as other drive means which can drive the propeller-shaped members 1 and 2 rotationally.

  The pressure feeding means is a paint supply device having a propeller-like member formed with a plurality of blades and capable of stirring the paint in the storage tank while pumping the paint from the discharge port by the rotation of the propeller-like member. If applicable, the present invention can also be applied to ones having different external shapes or to which other functions are added.

1, 2 Propeller-like member 3 Motor (drive means)
4, 5 Heating means 6 Spray gun (spouting means)
Ta, Tb storage tank A, B Discharge port

Claims (4)

A storage tank in which a predetermined amount of paint is stored and a discharge port capable of discharging the paint to the outside is formed;
A pumping means disposed in the storage tank and configured to pump the paint stored in the storage tank from the discharge port;
In the paint supply apparatus comprising
The pressure feeding means has a propeller-like member having a plurality of blades formed therein, and the rotation of the propeller-like member allows the paint to be stirred in the storage tank while pumping the paint from the discharge port. Characteristic paint supply device.   2. The paint supply apparatus according to claim 1, wherein the storage tank is formed in a funnel shape toward the discharge port, and the propeller-like member is disposed in the vicinity of the discharge port.   A plurality of the storage tanks are arranged to store different types of paints, respectively, and a single drive means is connected to the propeller-like members in the respective storage tanks. 3. The paint supply apparatus according to claim 1, wherein the member is rotatable.   The hose is extended from each discharge port of the plurality of storage tanks, and the spraying means capable of spraying the paint toward the desired part is connected to the tip side of the hose, and different types in the plurality of storage tanks 4. The paint supply apparatus according to claim 3, wherein said paint means can be ejected while mixing said paint.

Images