JP2016121490A - Dissolving/stirring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dissolving/stirring apparatus capable of efficiently dissolving material such as road marking paint by using power smaller than that of the conventional apparatus.SOLUTION: A dissolving/stirring apparatus comprises: a dissolution tank that is charged with material; and a stirring mechanism 3 for dissolving and stirring the material in the dissolution tank. The stirring mechanism comprises: a center shaft member 4 that is made to be a rotary shaft when at least the member's lower part is inserted into the dissolution tank and the member is rotatably supported; a drive source for performing rotary drive on the center shaft member; a plurality of connection members 6 whose base ends are fixed on the center shaft member and which externally extend in the radial direction from the center shaft member; a plurality of stirring bar units 7 that are fixed on tips of the plurality of connection members and are arranged in parallel with the center shaft member; an electric heating body 8 that is disposed inside a stirring bar unit and is made to perform heating by being energized; a wiring unit 9 that is made to extend from the upper end of the center shaft member and connect with the electric heating body through the inside of the center shaft member; and a power supply 10 connected to the wiring unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a dissolution and stirring device that dissolves and stirs materials such as white line paint for roads.

When drawing road lane markings and road markings, dissolve and stir materials such as road white line paint (road surface marking paint) and paint them on the road with a construction device for drawing. Road markings are being constructed.
Conventionally, white line paint materials are transported, dissolved, and applied in a dedicated vehicle equipped with a melting pot for heat treatment, but propane gas is mainly used as the fuel to keep the melting pot at a high temperature. Has been. However, considering the risk of explosion and the like in order to use gas, it has been studied to transfer fuel to electricity.

  For example, Patent Document 1 proposes a road marking paint dissolving apparatus in which an electric heating means is provided in a paint dissolving tank. In this melting apparatus, an electric heater is provided as an electric heating means so as to surround the peripheral wall and the lower wall of the paint melting tank. Further, in Patent Document 1, it is described that a rod-shaped heater may be directly inserted into a paint dissolution tank or mounted in a stirring shaft. The agitation shaft is provided with an agitation blade and is rotated by an agitation motor.

JP 2000-336615 A

The following problems remain in the conventional technology.
That is, in the technique of Patent Document 1, the electric heater is disposed so as to surround the peripheral wall and the low wall of the paint dissolution tank, but only the portion of the road marking paint material that is in contact with the inner surface of the dissolution tank is heated. Therefore, there was a problem that heat could not be efficiently applied to the internal material. Therefore, when the electric power is small, only the outer portion of the material is melted, so that there is a problem that a large amount of electric power is required to obtain sufficient melting. In addition, it is necessary to install many electric heaters in a large area, and there is a problem that the cost of members increases and the necessary electric power also increases. Furthermore, it was necessary to prepare a generator using a diesel engine or the like in order to obtain large electric power. In addition, although patent document 1 also describes the point which attaches a bar heater in a stirring shaft, since only the center part of a material melts in this case, too, in order to obtain sufficient dissolution, a large electric power is necessary. In addition, it is necessary to use together with the electric heater surrounding the peripheral wall and the low wall of the dissolution tank.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a dissolution and stirring device that can efficiently dissolve materials such as road marking paints with less electric power than in the past.

  The present invention employs the following configuration in order to solve the above problems. That is, the dissolution and stirring apparatus according to the first invention includes a dissolution tank into which a material to be dissolved is charged, and a stirring mechanism for dissolving and stirring the material in the dissolution tank, and the stirring mechanism includes the A central shaft member that is at least a lower portion inserted into the dissolution tank and is rotatably supported to serve as a rotation shaft, a drive source that rotationally drives the central shaft member, and a base end that is fixed to the central shaft member, and the central shaft member A plurality of connecting members extending radially outward from the plurality of stirring members, a plurality of stirring bar portions fixed to the distal ends of the plurality of connecting members and disposed in parallel with the central shaft member, and disposed inside the stirring bar portions. An electric heating body that is provided and heated by energization, a wiring portion that is connected from the upper end portion of the central shaft member to the electric heating body through the central shaft member, and a power source that is connected to the wiring portion. It is characterized by that.

  In this melting and stirring device, the stirring mechanism includes a plurality of stirring rod portions fixed to the ends of the plurality of connecting members and arranged in parallel with the central shaft member, and an electric heating element disposed inside the stirring rod portion and heated by energization. Since the plurality of stirring rod portions themselves that are radially separated from the central shaft member are heated by the built-in electric heating element, the material can be dissolved at a plurality of locations in the dissolution tank, and the center. The stirring rod part itself that generates heat by the rotation of the shaft member can stir the material in the dissolution tank. Therefore, a plurality of heat generating stirring bar portions rotate around the central shaft member while melting the material and stir the material, so that the heater is fixed and only the inner surface and the central portion of the melting tank are heated. Thus, the material can be efficiently dissolved and stirred with low power.

In the dissolution stirring apparatus according to the second invention, in the first invention, the power source is a dynamo mounted on an automobile.
That is, in this melting and stirring apparatus, since the power source is a dynamo mounted on the automobile, it is not necessary to prepare a separate generator, and the loading space occupied by the generator when mounted on the automobile is conventionally reduced. It can be vacated, and other devices and members can be mounted on the loading platform. In the present invention, since the material can be melted with low power compared to the conventional case, the power of the dynamo of the car can also be melted, and the generator, which is the most expensive equipment as the initial cost, is unnecessary. In addition, the cost of light oil for operating the generator and the transport vehicle for materials and other equipment are no longer necessary, and it is possible to significantly reduce running costs.

In the dissolution stirring apparatus according to the third aspect of the present invention, in the first or second aspect of the invention, a slip ring provided at an upper end portion of the central shaft member and having one end connected to the wiring portion is connected to the power source. A power supply line is connected to the other end side of the slip ring.
That is, in this melting and stirring apparatus, since the power line connected to the power source and the wiring part are electrically connected by the slip ring, it is possible to energize the wiring part in the central shaft member that is rotationally driven, Electric power can be supplied to each electric heating element.

In the dissolution stirring apparatus according to the fourth invention, in any one of the first to third inventions, the stirring rod portion has a stirring blade portion on an outer peripheral surface.
That is, in this melting and stirring apparatus, the stirring bar part has the stirring blade part on the outer peripheral surface, so that the contact area with the material is increased by the stirring blade part, and the heat of the stirring bar part is passed through the stirring blade part. Can be added to the material more efficiently, and the stirring ability can be further improved.

In the dissolution stirring apparatus according to the fifth invention, in any one of the first to fourth inventions, the stirring rod portions adjacent to each other are arranged at different distances from the central shaft member. And
That is, in this melting and stirring device, the stirring rod portions adjacent to each other are arranged with the distance from the central shaft member changed from each other, so that the orbital radius of the rotating stirring rod portion is different between adjacent ones, It is possible to directly dissolve and stir materials at different distances from the central shaft member, and to further improve the efficiency of melting and stirring.
Also, when the distance from the central shaft member is shorter than the distance from the central shaft member compared to the case where the distance from the central shaft member is the same, the distance between the adjacent stirring rod portions becomes shorter and adjacent to each other. A decrease in temperature between the stirring rod portions can be suppressed, and heat can be added to the material more efficiently.

In the dissolution stirring apparatus according to the sixth invention, in any one of the first to fifth inventions, the central shaft member has a helical fin on the outer peripheral surface, the drive source is the helical fin, The central shaft member is rotated in a direction in which the material is pushed downward.
That is, in this melting and stirring device, the central shaft member has a helical fin on the outer peripheral surface, and the drive source rotates the central shaft member in the direction in which the helical fin pushes the material downward. The material in the dissolution tank can be efficiently agitated and circulated by positively sending out.

The dissolution stirrer according to a seventh aspect of the present invention is the dissolution stirrer according to any one of the first to sixth aspects, wherein the stirring mechanism extends radially outward from a lower portion of the central shaft member and is energized inside. It is characterized by comprising a lower bar portion in which an electric heating body to be heated is disposed.
That is, in this melting and stirring apparatus, the stirring mechanism includes a lower bar portion that extends radially outward from the lower portion of the central shaft member and in which an electric heating body that is heated by energization is disposed. The material in the vicinity of the bottom of the dissolution tank that is difficult to dissolve can be easily dissolved and stirred by the heated lower bar.

The dissolution stirrer according to an eighth aspect of the present invention is the dissolution stirrer according to any one of the first to seventh aspects, wherein the material is a road marking paint.
That is, in this melting and stirring apparatus, since the material is a road marking paint, it is possible to construct a white line or the like on the road with low power and low cost.

The present invention has the following effects.
That is, according to the dissolution stirring apparatus according to the present invention, the stirring mechanism includes a plurality of stirring bar portions fixed to the distal ends of the plurality of connecting members and arranged in parallel with the central shaft member, and the stirring bar portion disposed inside the stirring bar portion. In addition, since the heating element is heated by energization, the material can be efficiently dissolved and stirred with lower power than in the conventional case. Therefore, it is possible to construct a white line or the like on the road with low power and low cost by using the material to be dissolved as a road marking paint.

In one Embodiment of the melt | dissolution stirring apparatus which concerns on this invention, it is a perspective view which shows the stirring mechanism which removed the slip ring. In this embodiment, it is a front view which shows the stirring mechanism which removed the slip ring. In this embodiment, it is a perspective view in the dissolution tank which shows the state which attached the stirring mechanism which removed the slip ring to the dissolution tank. In this embodiment, it is a top view which shows the stirring mechanism which removed the slip ring. In this embodiment, it is a perspective view of the principal part which shows the state which penetrated the stirring mechanism to which the slip ring was attached to the upper cover part and the partition plate. In this embodiment, it is a schematic side view which shows the state which mounted the melt | dissolution stirring apparatus in the motor vehicle.

  Hereinafter, an embodiment of a dissolution and stirring apparatus according to the present invention will be described with reference to FIGS. 1 to 6.

  The dissolution stirrer 1 of this embodiment is an apparatus for dissolving a road marking paint material such as a white line paint. As shown in FIGS. The tank 2 and the stirring mechanism 3 which melt | dissolves and stirs the material P in the dissolution tank 2 are provided.

  The agitating mechanism 3 includes at least a lower part inserted into the dissolution tank 2 and rotatably supported so as to be a rotation shaft, a drive source 5 that rotationally drives the center shaft member 4, and a center shaft member 4. A plurality of connecting members 6 fixed at the base end and extending radially outward from the central shaft member 4, and a plurality of stirring rod portions fixed to the distal ends of the plurality of connecting members 6 and arranged in parallel with the central shaft member 4 7, an electric heating body 8 disposed inside the stirring rod portion 7 and heated by energization, and a wiring portion 9 connected from the upper end portion of the central shaft member 4 to the electric heating body 8 through the central shaft member 4, The power supply 10 connected to the wiring part 9 is provided.

The stirring mechanism 3 includes a lower bar portion 11 that extends radially outward from a lower portion of the central shaft member 4 and in which an electric heating element 8 is disposed.
Further, the stirring mechanism 3 includes a slip ring 12 provided at the upper end portion of the central shaft member 4 and connected at one end side to the wiring portion 9, and the power line 10 a connected to the power source 10 is connected to the other end side of the slip ring 12. It is connected to the.
The stirring rod portion 7, the lower rod portion 11, the connecting member 6, and the central shaft member 4 are all cylindrical members formed of SUS or the like.

  The wiring portion 9 is inserted into the central shaft member 4 from the upper end portion of the central shaft member 4, and the electric heating body in each stirring rod portion 7 through the connecting member 6 from the middle of the central shaft member 4. Up to 8 are connected. Further, a part of the wiring portion 9 is inserted from the upper end portion to the lower end portion of the central shaft member 4 and is connected to the electric heating body 8 in the lower bar portion 11. In addition, each electric heating body 8 is inserted in the stirring rod portion 7 and the lower rod portion 11 in a state of being folded back at the distal end, and is connected to the wiring portion 9 at the proximal end.

  The stirring bar portions 7 adjacent to each other are arranged at different distances from the central shaft member 4. That is, the connecting members 6 extend in the four directions from the middle of the central shaft member 4, and four connecting members 6 are arranged at intervals of 90 ° around the central shaft member 4. The one is long and the other is short, and each stirring rod portion 7 attached to the tip of each connecting member 6 is also alternately arranged in the circumferential direction at a position far from the central shaft member 4 and a position close thereto. ing.

In addition, the lower bar portion 11 extends in four directions similarly to the connecting member 6. Therefore, the stirring rod portion 7 has an upper end fixed to the connecting member 6 and a lower end fixed to the lower rod portion 11.
The stirring bar portion 7 and the lower bar portion 11 each have a flange portion 13 at an end portion serving as a connection portion and are detachably attached with bolts, have high maintainability, and are components such as an electric heating element 8. Exchange is also easy. Each flange portion 13 is fixed with a heat resistant packing (not shown) interposed therebetween.

The stirring rod portion 7 has a stirring blade portion 7a on the outer peripheral surface. The stirring blade portion 7 a is a pair of plate-like members that extend along the stirring rod portion 7 and are attached to both sides of the stirring rod portion 7.
The central shaft member 4 has helical fins 4a on the outer peripheral surface. Further, the drive source 5 is set so as to rotate the central shaft member 4 in a direction in which the helical fin 4a pushes the material P downward.

As the heating element 8, various rod-shaped or linear heating wires and electric heaters can be used. In particular, in the present embodiment, a SUS metal foil heating element in which a conductive resin is coated on a SUS thin film is employed as the electric heating element 8. In this SUS metal foil heating element, the coating film is a semiconductor film, and when energized, it has a synergistic effect due to Joule heat, in-film electron transfer heat, and radiant heat. Can be heated.
The electric heating element 8 is heated to, for example, about 800 ° C., and the stirring rod portion 7 and the lower rod portion 11 are heated to about 500 ° C. The softening point of the white line paint is about 80 ° C.

The dissolution tank 2 is closed at the upper end by the upper lid portion 2a, and provided with a partition plate 2b at the intermediate portion. The central shaft member 4 is inserted through an insertion hole formed in the upper lid portion 2a and the partition plate 2b. The material P is stored below the partition plate 2b. That is, the stirring rod portion 7, the connecting member 6, the lower rod portion 11 and the like are disposed below the partition plate 2b.
The dissolution tank 2 is provided with an inlet (not shown) for the material P at the top, and an outlet (not shown) for pouring the dissolved material P on the lower side surface. A gate (not shown) that can be opened and closed is provided.

The drive source 5 is, for example, a hydraulic motor or the like, and is installed at the upper part of the dissolution tank 2, and the rotation shaft is connected to the gear 4 b provided above the central shaft member 4 and below the slip ring 12. . That is, the drive source 5 rotationally drives the central shaft member 4 via the gear 4b.
As the wiring part 9, an existing heat-resistant wiring is adopted, and a base end is connected to the control part C. The control unit C has a function of adjusting the current flowing through the wiring unit 9 to control the temperature of the electric heating body 8 and controlling the rotation of the hydraulic motor of the drive source 5.

  As shown in FIG. 6, the dissolution and stirring device 1 of the present embodiment is installed on a loading platform of an automobile TR such as a truck. The power source 10 is a dynamo (alternator) mounted on the automobile TR, and is connected to the main battery 20 and the auxiliary battery 21 through a power line 10a. That is, the main battery 20 and the auxiliary battery 21 are stored by the power source 10 which is a dynamo. Further, the auxiliary battery 21 and the control unit C are connected by a power line 10a. In the present embodiment, a generator is not necessary as the power source 10.

As described above, in the dissolution and agitation device 1 of the present embodiment, the agitation mechanism 3 includes a plurality of agitation bar portions 7 fixed to the distal ends of the plurality of connecting members 6 and arranged in parallel with the central shaft member 4, and the agitation bar portion 7. Are provided with an electric heating element 8 that is heated by energization, so that a plurality of stirring rod portions 7 that are spaced apart from the central shaft member 4 in the radial direction generate heat by the built-in electric heating element 8, thereby dissolving The material P can be dissolved at a plurality of locations in the tank 2, and the stirring rod portion 7 itself that generates heat by the rotation of the central shaft member 4 can stir the material P in the dissolution tank 2.
Therefore, since the plurality of generated stirring rod portions 7 rotate around the central shaft member 4 while melting the material P and stir the material P, the heater is fixed and only the inner surface and the center portion of the melting tank are heated. Compared to the case, the material P can be efficiently dissolved and stirred with low power.

  Further, since the power source 10 is a dynamo mounted on the automobile TR, it is not necessary to prepare a separate generator, and it is possible to free up the cargo bed space occupied by the generator when mounted on the automobile TR. It is possible to mount other devices and members on the loading platform. In this embodiment, since the material P can be melted with lower power than in the past, the power of the dynamo of the automobile TR can be melted, and the generator, which is the most expensive equipment as the initial cost, is unnecessary. At the same time, the cost of light oil for moving the generator and the transport vehicle for materials and other equipment are no longer required, and it is possible to significantly reduce running costs and the like.

Moreover, since the power supply line 10a connected to the power supply 10 and the wiring part 9 are electrically connected by the slip ring 12, the wiring part 9 in the central shaft member 4 to be rotationally driven can be energized, Electric power can be supplied to each electric heating element 8. In other words, the wiring portion 9 can be energized while rotating the central shaft member 42 by the slip ring 12.
Moreover, since the stirring rod part 7 has the stirring blade part 7a on the outer peripheral surface, the contact area with the material P is increased by the stirring blade part 7a, and the heat of the stirring rod part 7 is passed through the stirring blade part 7a. Can be more efficiently added to the material P, and the stirring ability can be further improved.

Further, since the stirring rod portions 7 adjacent to each other are arranged with the distances from the central shaft member 4 being changed from each other, the orbital radii of the rotating stirring rod portions 7 are different between adjacent ones, so that the central shaft member The material P at a different distance from 4 can be directly dissolved and stirred, and the efficiency of dissolution and stirring can be further improved.
In addition, as compared to the case where the distance from the central shaft member 4 is the same, when some of the stirring rod portions 7 are shorter than the others, the distance between the adjacent stirring rod portions 7 is shorter. Thus, a decrease in temperature between adjacent stirring rod portions 7 can be suppressed, and heat can be added to the material P more efficiently.
Further, since the central shaft member 4 has the helical fins 4a on the outer peripheral surface, and the driving source 5 rotates the central shaft member 4 in the direction in which the helical fins 4a push the material P downward, the dissolved material By actively sending P downward, the material P in the dissolution tank 2 can be efficiently stirred and circulated.

Further, since the stirring mechanism 3 includes the lower bar portion 11 that extends radially outward from the lower portion of the central shaft member 4 and in which the electric heating element 8 is disposed, the dissolution tank 2 that is relatively difficult to dissolve. The material P in the vicinity of the bottom can be easily dissolved and stirred by the heated lower bar 11.
Therefore, in this melting and stirring apparatus 1, by using the road marking paint as the material P, it is possible to construct a white line or the like on the road with low power and low cost.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the road marking paint is the material to be dissolved, but other materials may be the object to be dissolved. For example, other paints, oils and fats, resins, and the like may be used as the material to be dissolved.
Moreover, you may provide a stirring blade part in an outer peripheral surface also in a lower bar part like a stirring bar part.

  DESCRIPTION OF SYMBOLS 1 ... Dissolution stirring apparatus, 2 ... Dissolution tank, 3 ... Stirring mechanism, 4 ... Center shaft member, 4a ... Spiral fin, 5 ... Drive source, 6 ... Connecting member, 7 ... Stirring rod part, 7a ... Stirring blade part, DESCRIPTION OF SYMBOLS 8 ... Electric heating body, 9 ... Wiring part, 10 ... Power supply, 10a ... Power supply line, 12 ... Slip ring, 11 ... Lower bar part, P ... Material, TR ... Automobile

Claims (8)

A dissolution tank into which a material to be dissolved is charged;
A stirring mechanism for dissolving and stirring the material in the dissolution tank,
The stirring mechanism is a central shaft member that is at least a lower portion inserted into the dissolution tank and is rotatably supported as a rotation shaft;
A drive source for rotationally driving the central shaft member;
A plurality of connecting members having proximal ends fixed to the central shaft member and extending radially outward from the central shaft member;
A plurality of stirring bar portions fixed to the ends of the plurality of connecting members and arranged in parallel with the central shaft member;
An electric heating element disposed inside the stirring rod portion and heated by energization;
A wiring portion connected from the upper end portion of the central shaft member to the electric heating body through the central shaft member;
And a power source connected to the wiring part. The dissolution stirrer according to claim 1,
A melting and stirring apparatus, wherein the power source is a dynamo mounted on an automobile. The dissolution stirrer according to claim 1 or 2,
The stirring mechanism includes a slip ring provided at an upper end portion of the central shaft member and connected to the wiring portion at one end side;
A dissolution and stirring apparatus, wherein a power line connected to the power source is connected to the other end of the slip ring. In the dissolution stirring apparatus according to any one of claims 1 to 3,
The said stirring rod part has a stirring blade part in an outer peripheral surface, The melt | dissolution stirring apparatus characterized by the above-mentioned. In the dissolution stirring apparatus according to any one of claims 1 to 4,
The dissolution stirrer characterized in that the stirrer portions adjacent to each other are arranged at different distances from the central shaft member. In the dissolution stirring apparatus according to any one of claims 1 to 5,
The central shaft member has helical fins on the outer peripheral surface;
The dissolution stirrer characterized in that the drive source rotates the central shaft member in a direction in which the spiral fin pushes the material downward. In the dissolution stirring apparatus according to any one of claims 1 to 6,
The melting and stirring device, wherein the stirring mechanism includes a lower bar portion that extends radially outward from a lower portion of the central shaft member and in which an electric heating body that is heated by energization is disposed. In the dissolution stirring apparatus according to any one of claims 1 to 7,
The dissolution stirrer characterized in that the material is a road marking paint.

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