JP5637349B2 - Solder recovery device - Google Patents

Description

  The present invention relates to a solder recovery apparatus that removes dross from molten solder containing dross and recovers usable solder.

  Conventionally, as a solder recovery device that removes dross from molten solder containing dross and collects usable solder, a perforated handle rod that allows only dross to pass after the molten solder containing dross is solidified by cooling means What removes dross by sieving is known (Patent Document 1).

JP-A-2005-105312

  However, in the method of sieving and removing the dross from the solder solidified by the perforated handle as in Patent Document 1, the screened dross dust diffuses into the atmosphere, which may harm the health and environment of the operator. There is.

  Accordingly, an object of the present invention is to provide a solder recovery apparatus capable of removing dross from molten solder containing dross and recovering usable molten solder while suppressing diffusion of dross dust into the atmosphere. To do.

  In order to achieve the above object, a solder recovery apparatus according to the present invention is formed so as to be able to accommodate molten solder containing dross, and is disposed on a side surface or a peripheral surface above the position of the liquid surface of the molten solder to be accommodated. A molten solder accommodating portion in which a communication hole is formed, a water tank for accommodating a liquid, and one end connected to the communication hole of the molten solder accommodating portion and the other end positioned in the liquid of the water tank. The flow path for communicating the molten solder container and the water tank, and the gas above the molten solder stored in the molten solder container is sucked into the water tank via the flow path A negative pressure generating means for generating a negative pressure in the water tank and a cooling means for cooling the gas flowing in the flow path are provided.

  As described above, according to the solder recovery device of the present invention, dross dust separated from the molten solder and suspended in the air can be sucked into the water tank and collected in the liquid in the water tank. The dross can be removed from the molten solder containing the dross while suppressing the diffusion of the dross dust into the inside. In addition, by providing a cooling means for cooling the gas flowing in the flow path, it is possible to prevent the liquid in the water tank from boiling, so that the liquid in the water tank is prevented from flowing back to the flow path and the molten solder container. In addition, the suction force by the negative pressure generating means can be maintained.

  In the solder recovery apparatus according to the present invention, it is preferable that the water tank contains liquid and gas in a sealed state, and the negative pressure generating means is configured to bring the gas in the water tank into a negative pressure state. .

  The molten solder accommodating portion is formed in a bottomed shape with an upper opening, and a flange that covers a part of the opening above the communication hole is provided at an edge of the opening of the molten solder accommodating portion. It is preferable that As described above, by providing the flange portion that covers a part of the opening above the communication hole of the molten solder accommodating portion, it is possible to suck the dross dust floating above the molten solder more efficiently.

  A stirring member capable of stirring the molten solder housed in the molten solder housing portion; and a lid member capable of closing the opening of the molten solder housing portion in a state where the stirring member is housed in the molten solder housing portion. It is preferable to further comprise. Thus, by providing a stirring member capable of stirring the molten solder and a lid member capable of closing the opening of the molten solder housing portion, dross can be efficiently separated from the molten solder by stirring the stirring member, Since the dross dust floating from the molten solder can be confined by the lid member, it is possible to suppress the diffusion of the dross dust into the atmosphere and to remove the dross more efficiently.

  As described above, according to the present invention, there is provided a solder recovery apparatus capable of removing dross from molten solder containing dross and recovering usable molten solder while suppressing diffusion of dross dust into the atmosphere. can do.

It is a whole lineblock diagram showing the solder recovery device concerning one embodiment of the present invention. (A) is a top view which shows the molten solder storage container of the solder collection | recovery apparatus which concerns on this embodiment. (B) is a partially cutaway front view showing a molten solder container of the solder recovery apparatus according to the present embodiment. (A) is a top view which shows the stirring member of the solder collection | recovery apparatus concerning this embodiment. (B) is a partially cutaway front view showing the stirring member of the solder recovery apparatus according to the present embodiment. (C) is an expanded sectional view along the AA 'line of Drawing 3 (a). It is a perspective view which shows the dross collection | recovery member of the solder collection | recovery apparatus which concerns on this embodiment. It is process drawing which shows the usage condition of the solder collection | recovery apparatus which concerns on this embodiment.

  Next, a solder recovery apparatus according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 4, the solder recovery apparatus 1 according to the present embodiment is formed in a bottomed cylindrical shape having an open top and can accommodate a molten solder 2 including a dross 3. 10, a stirring member 20 capable of stirring the molten solder stored in the molten solder storage portion 10, and a lid capable of closing the opening of the molten solder storage portion 10 in a state where the stirring member 20 is stored in the molten solder storage portion 10 A member 35, a water tank 40 for containing water 41, a flow path 50 formed in a tubular shape for communicating the molten solder containing part 10 and the water tank 40, a suction device 60 for generating a negative pressure in the water tank 40, a flow The cooling device 70 that cools the gas flowing in the passage 50, the support base 80 that supports the water tank 40, and the dross 3 remaining in the molten solder container 10 after recovering the usable molten solder 2 from the molten solder container 10 Dross recovery member 1 for recovering Has a 0 and.

  As shown in FIG. 2, a communication hole 12 is formed on the peripheral surface above the position of the liquid surface 2 a of the molten solder 2 accommodated in the molten solder container 10, and the position where the communication hole 12 is formed. On the peripheral surface of the molten solder containing portion 10 that is approximately 90 degrees apart, a discharge portion 13 is formed in which the edge of the opening protrudes outward in a bowl shape. As shown in FIG. 2B, a porous plate 12 is provided at a position where the discharge portion 13 is formed on the inner peripheral surface of the molten solder accommodating portion 10 so as to cover the discharge portion 13. The plate 12 allows the molten solder 2 to pass therethrough, but has a plurality of holes for suppressing the passage of the dross 3. As shown in FIG. 2A, a crescent-shaped flange portion 16 that covers a part of the opening above the communication hole 12 is provided at the edge of the opening of the molten solder accommodating portion 10. A handle 15 is attached to the outer peripheral surface of the molten solder accommodating portion 10 via a first flow pipe 51 described later.

  As shown in FIG. 3, the stirring member 20 includes a rotating shaft 21 provided with stirring blades 22a and 22b on the tip side, an agitating member main body 23 for allowing the rotating shaft 21 to be axially rotatable, and an agitating member main body. 23 is provided in the vicinity of the grip portion 23a on the proximal end side of the control unit 23, and includes an operation unit 24 that rotates the rotary shaft 21. As shown in FIGS. 3B and 3C, the agitating member main body 23 is bent downward in the vicinity of the tip, and the bearing member 25 of the rotating shaft 21 is bent on the tip side of the bent portion. It is provided at three locations near the base end and near the base end than in the vicinity of the portion. The rotating shaft 21 is provided with a distal end portion 21a provided in a state where the stirring blades 22a and 22b are spaced apart from each other and intersect the rotating shaft 21 and protrude in directions orthogonal to each other, and a circular gear 27 is provided at the proximal end. And a universal joint 21c that connects the distal end portion 21a and the proximal end portion 21b so that the angle can be changed at the bending position of the stirring member main body 23, and the stirring blades 22a, 22b of the distal end portion 21a. The part provided with protrudes from the tip of the stirring member main body 23. As shown in FIG. 3B, the operation unit 24 includes an arm 31 that can rotate around an arm pin 30, one end fixed to the arm 31, and teeth that can mesh with the circular gear 27 of the rotary shaft 21 on the surface. And one end is fixed to the arm 31, the other end is fixed to the gripping portion 23a of the stirring member body 23, and a return spring 32 that biases the two in a direction to separate them. . The operator grips the gripping portion 23a and the arm 24, and repeats the approach and separation of the both, thereby rotating the circular gear 27 of the rotating shaft 21 forward or backward through the vertical movement of the meshing plate 28 and rotating it. The shaft 21 is configured to rotate. As shown in FIG. 3A, the lid member 35 is formed in a shape in which the shape of the flange portion 16 is missing from the shape of the opening of the molten solder accommodating portion 10, and on the distal end side near the bent portion of the stirring member body 23. It is attached.

  As shown in FIG. 1, the water tank 40 has a substantially rectangular shape having a sealed space, and is configured to accommodate water 41 and air 42 therein. An insertion hole 43 and a suction hole 44 are formed at a predetermined interval on the upper surface 40a of the water tank 40, and water 41 contained in the water tank 40 is provided on one side surface (right side surface in FIG. 1) 40b. A first discharge hole 48 for draining and a second discharge hole 45 for discharging the dross 3 accumulated in the water tank 40 are formed. A partition plate 46 is provided between the suction hole 44 of the water tank 40 and the water surface of the water 41 so as to protrude inward from the other side surface (left side surface in FIG. 1) 40c. At the position where the water 41 of the water tank 40 is accommodated, perforated plates 47, 47 covering the entire area in the plane direction are arranged in two stages in the vertical direction. The perforated plates 47, 47 are formed so as to be removable from the water tank 40.

  As shown in FIG. 1, the flow path 50 protrudes outward from the outer peripheral surface of the molten solder containing portion 10, and has a first flow pipe 51 made of a hard material whose tip communicates with the communication hole 12, and a first flow pipe 51. The front end is connected to the base end of the second flow pipe 53 made of a flexible material, the front end is connected to the base end of the second flow pipe 53, and passes through the cooling device 70 and the insertion hole 43 of the water tank 40. It extends to the vicinity of the bottom surface of 40 and is composed of a third flow pipe 52 made of a hard material.

  As shown in FIG. 1, the suction device 60 includes a rectangular housing 61 provided with an intake pipe 62 at the bottom and an exhaust pipe 63 on the side surface, and a pump (not shown) provided in the housing 61. And the intake pipe 62 is connected to the suction hole 44 of the water tank 40 and is disposed on the upper part of the water tank 40.

  As shown in FIG. 1, the cooling device 70 is arranged on the upper part of the water tank 40 and is configured to cool the gas flowing in the flow path 50. The cooling of the gas is performed by using an air-cooled type that cools the flowing gas by using a finned spiral tube or the like, or an outer tube that covers the outer peripheral surface of the flow path 50 inside the housing 71, and the outer pipe and the flow path. It can be carried out by a known cooling means such as a water-cooled type in which a solvent such as water is circulated between the two and 50.

  As shown in FIG. 4, the dross collecting member 100 includes a box-shaped main body portion 101 having a size capable of accommodating the molten solder accommodating portion 10 therein, and a box that is provided below the main body portion 101 and accommodates dross. And a dross containing portion 110 having a shape. In the main body 101, an insertion hole 103 into which the molten solder accommodating part 10 can be inserted is formed on the upper surface 102, and a communication hole 105 communicating with the dross accommodating part 110 is formed on the lower surface 104. Further, the main body 101 is formed with a notch 107 whose upper end is released from the upper end to the lower end of one side surface 106. The notch 107 is formed integrally with the insertion hole 103, and when the molten solder accommodating part 10 is accommodated inside the main body 101, the handle 15 of the molten solder accommodating part 10 is along the notch 107. It is formed in a width that can move in the vertical direction. The notch 107 is provided with a brush-like shielding member 108 over the entire area, and the insertion hole 103 of the main body 101 has a disk shape in which a plurality of radial cuts are formed from the center to the outer peripheral edge. The non-return member 109 is provided.

  Next, the usage method of the solder collection | recovery apparatus 1 which concerns on this embodiment is demonstrated based on FIG. First, the molten solder 2 including the dross 3 is supplied into the molten solder accommodating portion 10. Next, as shown in FIG. 5A, the molten solder container 10 is made to accommodate the stirring blades 22 a and 22 b of the stirring member 20 and the lid member 35 closes the opening of the molten solder container 10. In this state, as shown in FIG. 5 (b), the suction device 60 is started to bring the air 42 in the water tank 40 into a negative pressure state, so that the suction air flow into the flow path 50 through the water 41 of the water tank 40. Is generated. Next, as shown in FIG. 5 (c), the operation unit 24 of the stirring member 20 is operated to rotate the stirring blades 22 a and 22 b through the rotating shaft 21, so that they are stored in the molten solder storage unit 10. The molten solder 2 containing the dross 3 is stirred. After the stirring, the dross dust 3 ′ floating in the closed space of the molten solder container 10 is sucked by the suction airflow of the flow path 50, flows through the flow path 50 together with the gas, and is cooled by the cooling device 70. Into the water 41 of the water tank 40. Dross dust 3 ′ flowing into the water 41 of the water tank 40 is collected in the water 41 as shown in FIG. Here, the gas flowing into the water 41 together with the dross dust 3 ′ passes through the holes of the perforated plates 47, 47 of the water tank 40 and is discharged from the water 41 of the water tank 40, and the intake pipe 62 and the discharge part of the suction device 60. It is discharged into the atmosphere through 63.

  By the above method, the dross 3 can be removed from the molten solder 2 accommodated in the molten solder accommodating portion 10, and the usable molten solder 2 can be collected in a molten solder tank (not shown).

  Here, in the case where a small amount of dross 3 remains in the molten solder 2 remaining in the molten solder accommodating portion 10, the molten solder 2 is removed from the discharge portion 13 of the molten solder accommodating portion 10 (not shown). Then, the dross 3 left in the molten solder container 10 is collected inside the dross collecting member 100 by the porous plate 14 of the molten solder container 10. Specifically, the molten solder accommodating portion 10 is inserted into the insertion hole 103 of the main body 101 of the dross collecting member 100 and the handle 15 of the molten solder accommodating portion 10 is moved downward along the notch 107 of the main body 101. The molten solder accommodating part 10 is accommodated in the main body part 101. In this state, the dross 3 left in the molten solder container 10 is lowered to the dross container 110 through the communication hole 105 of the main body 101 of the dross collecting member 100 and collected in the dross container 110. At this time, since the check hole 109 and the shielding member 108 are provided in the insertion hole 103 and the notch 107 of the main body 101 of the dross collecting member 100, the dross 3 is diffused from the main body 101 into the atmosphere. This can be suppressed.

  As another method of use, it is preferable to perform the above-described method while immersing the molten solder container 10 in the molten solder in the molten solder bath. Thereby, since the liquid temperature of the molten solder 2 accommodated in the molten solder accommodating part 10 can be maintained, solidification of the molten solder 2 at the time of operation is effective without providing a heat source in the molten solder accommodating part 10. Can be prevented. Further, since it is possible to remove the dross dust 3 ′ from the molten solder 2 containing the dross 3 and recover the usable molten solder 2 in the molten solder tank, the working efficiency can be improved.

  DESCRIPTION OF SYMBOLS 1 Solder collection apparatus, 10 Molten solder accommodating part, 20 Stirring member, 35 Lid member, 40 Water tank, 50 Flow path, 60 Suction apparatus, 70 Cooling apparatus, 100 Dross collection member

Claims (3)

A molten solder containing portion formed so as to be able to contain molten solder containing dross, and having a communication hole formed in a peripheral surface above the position of the liquid surface of the molten solder to be accommodated,
A water tank containing liquid;
One end is connected to the communication hole of the molten solder accommodating part, and the other end is provided so as to be located in the liquid of the water tank, thereby allowing the molten solder accommodating part and the water tank to communicate with each other,
Negative pressure generating means for generating a negative pressure in the water tank so as to suck the gas above the molten solder stored in the molten solder storage part into the water tank via the flow path;
Cooling means for cooling the gas flowing in the flow path ,
The molten solder container is formed in a bottomed shape with an upper opening,
A flange that covers a part of the opening above the communication hole is provided at the edge of the opening of the molten solder accommodating portion.
A solder recovery apparatus characterized by that. The water tank contains liquid and gas in a sealed state,
2. The solder recovery apparatus according to claim 1, wherein the negative pressure generating means is configured to bring the gas in the water tank into a negative pressure state. A stirring member capable of stirring the molten solder housed in the molten solder housing section;
The solder recovering apparatus according to claim 1 or 2, wherein the stirrer拌部material and further comprising a lid member capable of closing an opening of the molten solder housed portion while being housed in the molten solder containing portion.

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