JP5540817B2 - Soldering device and fume recovery device - Google Patents

Description

  The present invention relates to a soldering apparatus and a fumes recovery unit that are configured by a solder processing unit that heats and solders an object, and a fue recovery unit that extracts and recovers fumes from a fumes-containing gas generated in the solder processing unit. It relates to the device.

  In recent years, a soldering apparatus has been used to solder an electronic component or the like to a printed board. Examples of the soldering apparatus include an automatic soldering apparatus for soldering by a flow method in a jet solder bath, a reflow furnace for applying solder paste to an electronic component placed on a printed circuit board, and then soldering by heating. Can be mentioned.

  The automatic soldering apparatus and the reflow furnace are different in soldering method, but both use flux in order to improve the soldering performance. This flux is obtained by dissolving solid components such as pine resin, activator, thixotropic agent and the like with a high boiling point solvent.

  These solvents volatilize at about 100 ° C. to 150 ° C. and become fumes-containing gas (fume-containing gas). When the fumed gas is cooled, the fumed gas is condensed to deposit fumes, and when the fumed gas is further cooled, it becomes a sticky solid. This fume adheres to the conveyance part which comprises an automatic soldering apparatus and a reflow furnace, and reduces the conveyance function of a conveyance part. Moreover, it may adhere to a printed circuit board and have a bad influence.

  Patent Document 1 discloses a fume removal method in a reflow furnace. According to this fume removal method, when the printed circuit board on which the solder paste is applied is heated and soldered in a reflow furnace, the fumes in the gas containing fumes generated by evaporation of the solvent contained in the solder paste are removed from the reflow furnace. In order to remove from the inside, the fumes are condensed and collected by the multi-tube type dew condensation means, the long hole side-by-side dew condensation means and the labyrinth type dew condensation means.

  The multi-tube dew condensation means has a large number of pipes inside the main body, and cools the fumed gas by flowing outside air inside the pipe, and the fumed gas is condensed by the cooling. It adheres (condenses) to the outer surface of the pipe.

  Labyrinth-type dew condensation means means that a plurality of plates are erected in an up-down direction, and these plates are attached (condensed) to the surface of the plate using the fact that the fumes-containing gas is cooled. It is.

JP 2007-160322 A

  By the way, although the fume removal method described in Patent Document 1 is an excellent method that can efficiently remove fume from the fume-containing gas generated in the reflow furnace, a large amount of fume adheres to the pipe of the multi-tube type condensation means. Then, the heat exchange between the pipe and the fumes-containing gas is hindered, and the cooling efficiency of the fumes-containing gas is lowered. Further, even in the labyrinth type dew condensation means, solid fume accumulates over a long period of time, resulting in poor heat conduction with the plate material and lowering the cooling efficiency.

  In the fume removal method described in Patent Document 1, it is necessary for the user to remove the multi-tube type dew condensation means from the main body and wash the fumes adhering to a large number of pipes with a solvent or the like, and this washing operation is complicated. . For this reason, it has been difficult to frequently clean the pipe and keep the pipe surface clean. Also in the labyrinth type dew condensation means, it is necessary for the user to remove the plate material from the labyrinth type dew condensation means and clean it with a solvent or the like, and this washing operation is complicated. For this reason, it has been difficult to frequently clean the plate material to keep the plate surface always clean.

  Therefore, the present invention solves such a problem, and can shorten the work time for removing the fumes adhering to the adhering portion made of a pipe or a plate material, and the surface of the adhering portion made of a pipe or a plate material can be reduced. It is an object of the present invention to provide a soldering device and a fume recovery device that can always be kept clean.

In order to solve the above-described problems, a soldering apparatus according to the present invention extracts and recovers fumes from a solder processing unit that heats and solders an object and fumes-containing gas generated in the solder processing unit. A soldering device comprising a fume collecting unit, wherein the fume collecting unit cools the fume-containing gas that is provided in the main body unit and takes in the fume-containing gas, An adhering portion for adhering the fumes containing the fumed gas to the surface, an abutting portion provided in contact with the adhering portion, and a drive unit for sliding the corresponding contacting portion along the surface of the adhering portion. , abutment, is characterized in Rukoto that having a squeegee having a shape corresponding to the shape of the surface of the attachment portion.

In the soldering apparatus according to the present invention, the solder processing unit heats and solders the object. The fume recovery unit extracts and recovers the fume-containing gas generated in the solder processing unit. Based on this premise, the fume recovery unit takes in the fume-containing gas into the main body, cools the fume-containing gas taken into the main body, and adheres the fume containing the condensed fume-containing gas to the surface of the adhering portion. . The contact portion has a squeegee having a shape corresponding to the shape of the surface of the attachment portion, and is provided in contact with the attachment portion. Its to the driving unit to slide along the squeegee abutment on the surface of the attachment portion. Thereby, the fumes adhering to the surface of the adhering portion can be removed by sliding the squeegee of the abutting portion.

Further, the fume recovery device according to the present invention is a fume recovery device that extracts and recovers fumes from the fume-containing gas generated in the solder processing unit, and is provided in the main body portion that takes in the fume-containing gas, and in the main body portion, An adhering part that cools the fumed gas taken into the main body and adheres the fumed gas condensed by the cooling to the surface; an abutting part provided in contact with the adhering part; a drive unit for sliding along the surface of the attachment portion, the contact portion is characterized in Rukoto that having a squeegee having a shape corresponding to the shape of the surface of the attachment portion.

  For example, the adhering portion included in the soldering device and the fume recovery device is composed of a plurality of pipes that allow the cooling medium to flow inside (multi-tube dew condensation means), or a plurality of the standing portions that are staggered in the vertical direction. It consists of a plate material (labyrinth type dew condensation means).

According to the soldering device and the fume collecting device according to the present invention, the fume adhering to the surface of the adhering portion can be removed by sliding the squeegee of the abutting portion. There is no need to remove it, and the work time required to remove the fumes can be shortened.

  Further, since the fume can be removed easily and frequently by operating the drive unit, the surface of the adhering part can be always kept clean. Thereby, the fall of the heat conduction resulting from the fumes adhering to the surface of the adhering portion can be prevented, and the cooling efficiency of the fumed gas can be improved. As a result, more fumes can be recovered from the fumed gas as compared with the conventional case, and soldering failure of the object to be soldered can be prevented.

It is the schematic which shows the structural example of the automatic soldering apparatus 1 which concerns on 1st Embodiment. 1 is a perspective view showing a configuration example of a fume collection device 100. FIG. It is a perspective view which shows the structural example of the fume collection | recovery apparatus 100 when a cover part is removed. 2 is a cross-sectional perspective view showing a configuration example of a fume recovery apparatus 100. FIG. 3 is a perspective view showing a configuration example of a fume removing unit 10. FIG. 3 is an exploded perspective view showing an assembly example of the fume removing unit 10. FIG. It is a disassembled perspective view which shows the assembly example (the 1) of the fume collection | recovery apparatus. It is a disassembled perspective view which shows the assembly example (the 2) of the fume collection | recovery apparatus. It is a disassembled perspective view which shows the assembly example (the 3) of the fume collection | recovery apparatus. It is a perspective view which shows the operation example (the 1) of the fume collection | recovery apparatus. It is a perspective view which shows the operation example (the 2) of the fume collection | recovery apparatus. It is a perspective view which shows the operation example (the 3) of the fume collection | recovery apparatus. It is a perspective view which shows the structural example of the fume collection | recovery apparatus 200 which concerns on 2nd Embodiment. 3 is a block diagram illustrating a configuration example of a control system of a fume recovery apparatus 200. FIG.

Hereinafter, an automatic soldering apparatus 1 and fumes recovery apparatuses 100 and 200, which are examples of a soldering apparatus according to the present invention, will be described with reference to the drawings.
<First Embodiment>
[Configuration example of automatic soldering apparatus 1]
First, a configuration example of the automatic soldering apparatus 1 will be described. As shown in FIG. 1, the automatic soldering apparatus 1 includes a main body case 2, a conveyance unit 3, a preheater 4, a jet solder bath 5, a cooling unit 6, a chamber 7, a blower 8, circulation pipes 9 a, 9 b, 9 c, and fume recovery. (Hereinafter referred to as “fume recovery device 100”).

  The main body case 2 covers the transport unit 3, the preheater 4, the jet solder tank 5, the cooling unit 6, the chamber 7, the blower 8, the circulation pipes 9a, 9b, and 9c, and the fume collecting device 100, and collects particles such as dust from the outside. The printed circuit board which is an example of the target object which is not shown in figure is protected so that it may not be contaminated.

  The conveyance part 3 conveys a printed circuit board. The transport unit 3 transports the printed circuit board in the order of the pre-heater 4, the jet solder tank 5, and the cooling unit 6, and carries it out of the automatic soldering apparatus 1.

  The pre-heater 4 dries the printed circuit board on which the flux is applied in the fluxer process, which is a process before the printed circuit board is put into the automatic soldering apparatus 1, and performs soldering using a jet solder bath 5 described later. The printed circuit board is heated in order to improve the adhesion of the solder, which is the degree to which the solder is adhered to the printed circuit board.

  The preheater 4 includes first to fourth preheaters, and the first to fourth preheaters are provided side by side with respect to the transport direction of the printed circuit board, and the temperature of each preheater can be adjusted.

  A jet solder bath 5 is provided adjacent to the preheater 4. The jet solder bath 5 sprays solder onto the printed circuit board dried by the pre-heater 4 to form solder at predetermined locations on the printed circuit board. In the jet solder bath 5, the printed circuit board is heated at a temperature equal to or higher than the temperature at which the fumes-containing gas is generated.

  A cooling unit 6 is provided adjacent to the jet solder bath 5. The cooling unit 6 sends air blown by a fan (not shown) constituting the cooling unit 6 to the printed circuit board and cools the printed circuit board heated in the preheater 4 and the jet solder bath 5. By cooling the printed circuit board with the cooling unit 6, it is possible to prevent cracks and the like generated in the solder attached to the printed circuit board.

  A chamber 7 is provided above the jet solder bath 5. The chamber 7 takes in the fumes-containing gas generated from the printed circuit board heated in the jet solder bath 5.

  A fume recovery device 100 is connected to the chamber 7 through a blower 8 and circulation pipes 9b and 9c. The blower 8 sends the fume-containing gas in the chamber 7 to the fume recovery device 100 via the circulation pipes 9a and 9b. The fume-containing gas sent to the fume recovery device 100 is recovered by the fume recovery device 100, sent to the chamber 7 via the circulation pipe 9 c by the blower 8, and returned to the jet solder bath 5 again.

  In addition, since the blower 8 is for forming a circulation path between the chamber 7 and the fume recovery device 100, in the present embodiment, the blower 8 is connected to a circulation pipe on the intake port 32 side of the fume recovery device 100. Although the case where it arrange | positions between 9a and 9b is shown, you may make it arrange | position to the circulation pipe 9c in the discharge port 33 side of the fume collection | recovery apparatus 100. FIG.

  The fume recovery apparatus 100 takes in the fumes-containing gas generated in the jet solder bath 5 through the chamber 7, the circulation pipes 9 a and 9 b and the blower 8. And the fume collection | recovery apparatus 100 cools the taken-in fume containing gas by making a cooling medium (for example, air, water, etc.) flow inside a some cooling pipe provided inside, and contains fume by this cooling The fumes condensed with gas are attached to the outer surface of the cooling pipe.

  The fume collection device 100 includes a handle 16, and when the handle 16 is rotated, a squeegee provided in contact with the cooling pipe slides along the outer surface of the cooling pipe. Thereby, it becomes possible to remove the fumes adhering to the outer surface of the cooling pipe.

  As described above, according to the automatic soldering apparatus 1 according to the present embodiment, the fumes adhering to the outer surface of the cooling pipe can be removed by sliding the squeegee. Therefore, the fume collecting apparatus 100 is used to remove the fumes. This eliminates the need to remove the cooling pipe and the like from the main body, and shortens the work time required to remove the fumes.

  In addition, since the fumes can be removed easily and frequently by rotating the handle 16, the outer surface of the cooling pipe can always be kept clean. Thereby, the fall of the heat conduction resulting from the fumes adhering to the outer surface of the cooling pipe can be prevented, and the cooling efficiency of the fumes-containing gas can be improved. As a result, more fumes can be recovered from the fumed gas as compared with the conventional case, and soldering failure of the object to be soldered can be prevented.

  In the present embodiment, it has been described that the fumes-containing gas taken in by the chamber 7 flows in the order of the chamber 7, the circulation pipe 9a, the blower 8, the circulation pipe 9b, the fume recovery device 100, and the circulation pipe 9c. However, the present invention is not limited thereto, and the structure flows in the order of the chamber 7, the circulation pipe 9 c, the fume recovery device 100, the circulation pipe 9 b, the blower 8, and the circulation pipe 9 a (that is, the direction opposite to the direction of the arrow in FIG. It may be configured to flow in the direction). As a result, the flow direction of the fume-containing gas in the chamber 7 is opposite to the conveyance direction of the printed circuit board conveyed by the conveyance unit 3, so that the gas from which the fumes have been removed by the fume recovery device 100 is transferred to the conveyance unit 3. It is possible to reduce the discharge due to the substrate conveyance.

  Further, since the blower 8 is for forming a circulation path between the chamber 7 and the fume recovery device 100, the blower 8 is arranged on the intake port 32 side of the fume recovery device 100 or the discharge port 33. It is not limited to the side.

  Moreover, although this Embodiment demonstrated what mounted | worn with the fume collection | recovery apparatus 100 in the automatic soldering apparatus, the said fume collection | recovery apparatus 100 is applicable also to a reflow furnace.

[Configuration Example of Fume Recovery Device 100]
Next, a configuration example of the fume recovery apparatus 100 will be described. In this example, a case where the present invention is implemented in a multi-tube type dew condensation means using a plurality of pipes will be described. As shown in FIGS. 2 to 4, the fume collecting apparatus 100 includes a main body 30, a cooling pipe 20 that is an example of an adhering part, a fume removing part 10 that is an example of a contact part, and a driving part 19.

  The main body 30 has a flow port 31, an intake port 32, and a discharge port 33. The flow port 31 discharges the outside air sucked by the fan 38 provided in the main body portion 30 to the outside of the fume collecting device 100 through the cooling pipe 20. This outside air is air in this example, and is an example of a cooling medium. The blower 8 shown in FIG. 1 is provided at the intake port 32 or the discharge port 33, and the fume-containing gas generated in the chamber 7 of the automatic soldering apparatus 1 by the operation of the blower 8 is taken into the intake port 32. It is discharged from the discharge port 33.

  The main body 30 has a flange 30 a around the upper portion, and a lid 35 is provided on the flange 30 a via a seal member 36. The main body 30 and the lid 35 are fixed by sandwiching the flange 30 a, the seal member 36, and the lid 35 with the clamp 37. When removing the lid 35 from the main body 30, the clamp 37 is released.

  The main body 30 has a flange 30 b around the bottom, and a drain pan 34 is provided on the flange 30 b via a seal member 36. The drain pan 34 collects fumes extracted from the fumes-containing gas taken into the main body 30. For example, the drain pan 34 collects fumes adhering to the outer surface of the cooling pipe 20, and dropping from the outer surface of the cooling pipe 20 by its own weight. Further, the drain pan 34 is a fumes adhering to the outer surface of the cooling pipe 20, and collects fumes that are forcibly removed by the fume removing unit 10.

  The main body 30 and the drain pan 34 are fixed by sandwiching the flange 30b, the seal member 36, and the drain pan 34 with a clamp (not shown). When removing the drain pan 34 from the main body 30, the clamping of the clamp is released.

  A plurality of cooling pipes 20 are provided in the main body 30, for example, in a staggered manner. As the fan 38 sucks air, the air flows inside the cooling pipe 20. The cooling pipe 20 is made of, for example, a metal material such as stainless steel. When air flows inside the cooling pipe 20, not only the inside but also the outside is cooled. When the fume-containing gas is taken into the main body 30, when the cooling pipe 20 is cooled, the fume-containing gas in contact with the outer surface of the cooling pipe 20 is cooled and the fume-containing gas is condensed. Is attached to the outer surface of the cooling pipe 20.

  The fume removing unit 10 is provided in contact with the cooling pipe 20. For example, as shown in FIGS. 3 and 4, the fume removing unit 10 is erected in a direction perpendicular to the longitudinal direction of the cooling pipe 20 through the cooling pipe 20.

  The fume removing unit 10 is provided with a driving unit 19. The drive unit 19 includes a screw shaft 15 and a handle 16. The screw shaft 15 has a threaded shaft, and penetrates the fume removing unit 10 via a bolt 14. The screw shaft 15 is provided substantially parallel to the cooling pipe 20.

  A handle 16 is provided at one end of the screw shaft 15. The handle 16 rotates the screw shaft 15. When the handle 16 is rotated by the user, the screw shaft 15 rotates, and the fume removing unit 10 slides along the screw shaft 15 with the rotation. Then, the fume removing unit 10 slides on the outer surface of the cooling pipe 20. Thereby, the fumes adhering to the outer surface of the cooling pipe 20 can be removed.

[Configuration Example of Fume Removal Unit 10]
Next, a configuration example of the fume removing unit 10 will be described. As shown in FIG. 5, the fume removing unit 10 includes plates 11a, 11b, 11c, and 11d, squeegees 12b, 12c, and 12d, plate fixing portions 13a and 13b, and bolts 14.

  The plates 11a, 11b, 11c, and 11d have an arc-shaped pipe through groove 21 corresponding to the outer shape of the pipe. The outer shapes of the pipe through groove 21 and the cooling pipe 20 are substantially the same.

  Squeegees 12b, 12c, and 12d are provided on the plates 11b, 11c, and 11d, respectively. The squeegees 12b, 12c, and 12d are made of, for example, a peak material that is a thermoplastic heat-resistant polymer resin, stainless steel, and the like, and are formed in an arc shape along the shape of the pipe through groove 21 of the plates 11b, 11c, and 11d. Yes. The squeegees 12b, 12c, and 12d are in contact with the cooling pipe 20, respectively.

  In the present embodiment, the squeegees 12b, 12c, and 12d are provided on the upstream side of the flow path of the fume-containing gas with respect to the cooling pipe 20 (the side where the intake port 32 is provided), but are not limited thereto. Instead, it may be provided upstream and downstream of the flow path of the fume-containing gas so as to surround the cooling pipe. Further, the squeegees 12b, 12c, 12d may be formed in a circular shape instead of an arc shape, or may be a brush shape made of stainless steel or the like.

  The plate fixing portions 13a and 13b are provided at the upper and lower portions of the plates 11a, 11b, 11c and 11d, and fix the plates 11a, 11b, 11c and 11d at predetermined positions.

  The bolt 14 is provided on the plate 11c. The bolt 14 and the plate 11c are securely fixed by, for example, welding. The bolt 14 is threaded and engages the screw shaft 15.

  A handle 16 is provided at one end of the screw shaft 15 via a handle fixing portion 17. The handle fixing portion 17 is fixed to the main body portion 30 described with reference to FIGS. 2 and 3, and connects the screw shaft 15 housed inside the main body portion 30 and the handle 16 outside the main body portion 30.

  A screw shaft support 18 is provided at the other end of the screw shaft 15. The screw shaft support portion 18 has a shaft hole 18a that is not threaded and is rotatably supported so that the screw shaft 15 rotates idle. The screw shaft support portion 18 is fixed inside the main body portion 30 as shown in FIG.

  When the handle 16 is rotated, the screw shaft 15 is also rotated. Then, since the cooling pipe 20 comes into contact with the pipe through-groove 21 described later with reference to FIG. 6 of the fume removing unit 10, the movement of the handle 16 is restricted in the fume removing unit 10 along the screw shaft 15. Move. For example, when the handle 16 is rotated clockwise, the fume removing unit 10 moves from the back side (side with the screw shaft support unit 18) toward the front side (side with the handle fixing unit 17), and the handle 16 is moved. When rotated counterclockwise, the fume removing unit 10 moves from the near side to the far side.

  Since the screw shaft 15 is provided substantially parallel to the cooling pipe 20 shown in FIGS. 2 to 4, the fume removing unit 10 moves along the screw shaft 15 and also moves along the cooling pipe 20. . That is, the squeegees 12b, 12c, and 12d included in the fume removing unit 10 move (slide) while contacting the cooling pipe 20.

[Assembly method of fume removing unit 10]
Next, an example of an assembly method of the fume removing unit 10 will be described. As shown in FIG. 6, it is assumed that the plates 11b, 11c, 11d and the squeegees 12b, 12c, 12d are fixed by screws or the like, and the plate 11c and the bolts 14 are fixed by welding or the like.

  First, the upper portions of the plates 11a, 11b, 11c, and 11d are fitted into the grooves of the plate fixing portion 13a, and the lower portions of the plates 11a, 11b, 11c, and 11d are fitted into the grooves of the plate fixing portion 13b. And the fume removal part 10 is completed by fixing plate 11a, 11b, 11c, 11d and plate fixing | fixed part 13a, 13b with a screw | thread etc. FIG.

[Assembly Method of Fume Recovery Device 100]
Next, an example of a method for assembling the fume recovery apparatus 100 will be described. As shown in FIG. 7, the plurality of cooling pipes 20 are passed through the pipe through grooves 21 included in the plates 11 a, 11 b, 11 c, and 11 d of the fume removing unit 10 described in FIG. 6.

  As shown in FIG. 8, the main body 30 to which the drain pan 34, the clamp 37, the fan 38, and the like are attached accommodates the fume removing unit 10 penetrating the cooling pipe 20 described in FIG. In FIG. 8, for simplification, the fume removing unit 10 and the cooling pipe 20 are accommodated in the main body 30 by moving downward so that the positions of the plurality of cooling pipes 20 and the plurality of flow ports 31 coincide with each other. However, in reality, the fume removing unit 10 and the cooling pipe 20 are accommodated in the main body 30 so that a part of the cooling pipe 20 and the screw shaft support 18 do not collide with each other. That is, the cooling pipe 20 and the flow port 31 are moved downward so that the positions of the cooling pipe 20 and the flow port 31 are slightly shifted from each other, and the fume removing unit 10 and the cooling pipe 20 are accommodated in the main body 30. The fume removing unit 10 and the cooling pipe 20 are slid and moved so that the positions of the two coincide with each other.

  After the fume removing part 10 and the cooling pipe 20 are accommodated in the main body part 30, the lid part 35 is put on the upper part of the main body part 30, and the main body part 30 and the lid part 35 are sandwiched and fixed by the clamp 37.

  As shown in FIG. 9, when the screw shaft 15 is inserted into the shaft hole 39 formed in the main body 30 from the other end 15a of the screw shaft 15, and the other end 15a reaches the bolt 14 of the fume removing unit 10, Continue tightening the screws. Then, the other end 15 a is inserted into a shaft hole 18 a drilled in the screw shaft support portion 18.

  Thereafter, the handle fixing portion 17 to which the handle 16 is connected is engaged with one end 15b of the screw shaft 15, and is fixed to the main body portion 30 with a screw or the like. In this way, the fume recovery apparatus 100 is completed.

  In addition, the assembly method of the fume removal part 10 and the fume collection | recovery apparatus 100 demonstrated in this Embodiment is an example, Comprising: It is not limited to this. For example, the main body 30 and the cooling pipe 20 are joined in advance by welding, and the plates 11a, 11b, 11c, and 11d, the plate fixing portions 13a and 13b, and the squeegees 12b, 12c, and 12d are connected to the cooling pipe 20 of the main body 30. It may be a method of assembling.

[Operation Example of Fume Recovery Device 100]
Next, an operation example of the fume recovery apparatus 100 will be described. In order to make the operation of the fume collecting apparatus 100 easier to see, the lid 35 is omitted in FIGS. As shown in FIG. 10, the fume removal unit 10 stands by on the back side (fan 38 side) of the main body unit 30. The fume recovery device 100 drives the fan 38 to suck in the outside air to cool the cooling pipe 20, and discharges the outside air in the cooling pipe 20 from the flow port 31 to the outside of the fume recovery device 100.

  Then, the fume-containing gas is taken into the main body 30 from the intake port 32. Then, the fumes-containing gas taken into the main body 30 is cooled and condensed by the cooling pipe 20, and fumes are deposited, and are discharged from the discharge port 33. This fume adheres to the surface of the cooling pipe 20.

  As described above, when fumes continue to be deposited from the fumes-containing gas, fumes accumulate on the surface of the cooling pipe 20. When the fume accumulates on the surface of the cooling pipe 20, heat exchange between the cooling pipe 20 and the fume-containing gas is hindered, and the cooling efficiency of the fume-containing gas is reduced. For this reason, if a certain amount of fume accumulates in the cooling pipe 20, it must be removed.

  In order to collect the fumes, the handle 16 is first turned clockwise. Then, the screw shaft 15 connected to the handle 16 rotates clockwise, and the fume removing unit 10 engaged with the screw shaft 15 moves from the back side of the main body 30 to the front side (handle 16 side).

  As shown in FIG. 11, the fume removing unit 10 slides along the longitudinal direction of the cooling pipe 20. Then, the squeegee that the fume removing unit 10 has scrapes off the fume adhering to the outer surface of the cooling pipe 20.

As shown in FIG. 12, when the handle 16 is further rotated clockwise, the fume removing unit 10 moves to the handle 16 side and slides along the longitudinal direction of the cooling pipe 20. Thereby, the fumes adhering to the outer surface of the cooling pipe 20 can be removed.

  As described above, according to the fume recovery apparatus 100, the main body 30 is obtained by taking the fumes-containing gas into the main body 30 and causing the air from the fan 38 to flow inside the cooling pipe 20 provided inside the main body 30. The fume-containing gas taken in is cooled, and the fume condensed by the cooling is attached to the outer surface of the cooling pipe 20. Then, the drive unit 19 slides the fume removing unit 10 provided in contact with the cooling pipe 20 along the outer surface of the cooling pipe 20.

  Thereby, the fumes adhering to the outer surface of the cooling pipe 20 can be removed. As a result, it is not necessary to remove the cooling pipe 20 from the main body 30 to remove the fumes, and the work time required for removing the fumes can be shortened.

  Further, since the fume can be removed easily and frequently by operating the drive unit 19 (turning the handle 16), the outer surface of the cooling pipe 20 can be always kept clean. Thereby, the fall of the heat conduction resulting from the fumes adhering to the outer surface of the cooling pipe 20 can be prevented, and the cooling efficiency of the fumes-containing gas can be improved. As a result, more fumes can be recovered from the fumed gas as compared with the conventional case, and soldering failure of the object to be soldered can be prevented.

  In the present embodiment, the fume removing unit 10 is slid on the cooling pipe 20 by the screw shaft 15 and the handle 16, but the drive unit 19 is not limited to this, and instead of the screw shaft 15 and the handle 16, A slide mechanism that directly moves the fume removing unit 10 may be used.

  In the present embodiment, the squeegees 12b, 12c, and 12d are provided on only one side of the plates 11b, 11c, and 11d, but may be provided on both sides. Accordingly, the fume removing unit 10 can be removed from the cooling pipe 20 by rotating the handle 16 clockwise from the position shown in FIG. 10 to the position shown in FIG. The fume can be removed from the cooling pipe 20 by rotating the handle 16 counterclockwise from the position shown in FIG. 12 to the position shown in FIG.

<Second Embodiment>
In the present embodiment, a fume recovery apparatus 200 provided with a motor 50 instead of the handle 16 of the fume recovery apparatus 100 described in the first embodiment will be described. Components having the same names and reference numerals as those of the first embodiment have the same functions, and thus description thereof is omitted.

[Configuration Example of Fume Recovery Device 200]
Initially, the structural example of the fume collection | recovery apparatus 200 is demonstrated. As shown in FIG. 13, the fume collecting apparatus 200 is provided with a motor 50 which is an example of a rotating part instead of the handle 16 of the fume collecting apparatus 100 shown in FIG. The handle 16 is manually rotated by the user, but the motor 50 is connected to the control unit 80 and automatically rotates.

  Next, a configuration example of the control system of the fume recovery apparatus 200 will be described. As shown in FIG. 14, the fume collection device 200 includes a motor 50, a fume detection sensor 60, an operation unit 70, and a control unit 80.

  The automatic soldering apparatus 1 described in the first embodiment can be connected to the control unit 80. The control unit 80 reads a control program from a storage unit (not shown) and controls the automatic soldering apparatus 1. For example, the control unit 80 controls the flow rate of molten solder jetted from the jet solder tank of the automatic soldering apparatus 1 and the temperature of the preheater.

  An operation unit 70 is connected to the control unit 80. The operation unit 70 is operated by a user. When the operation unit 70 is operated, for example, a motor drive signal D1 for driving the motor 50 is output from the control unit 80.

  A motor 50 is connected to the control unit 80. The motor 50 receives the motor drive signal D1 output by the control unit 80 and drives the motor 50. For example, when it is desired to remove fumes adhering to the surface of the cooling pipe 20, the user operates the operation unit 70 to output the motor drive signal D <b> 1 from the control unit 80. Then, the motor 50 is driven by the motor drive signal D1 to rotate the screw shaft 15 accommodated in the main body 30 and slide the fume removing unit 10 engaged with the screw shaft 15 in the longitudinal direction of the cooling pipe 20. Let Thereby, even if the user does not rotate the handle 16 as in the case of the fume collecting device 100, the fume adhering to the outer surface of the cooling pipe 20 can be removed by rotating the motor 50 by the operation by the operation unit 70. Can do.

  A fume detection sensor 60 is connected to the control unit 80. When the fume detection sensor 60 detects fume adhering to the outer surface of the cooling pipe 20, the fume detection sensor 60 generates a detection signal D2.

  For example, the fume detection sensor 60 is an optical sensor that is provided apart from the cooling pipe, irradiates the cooling pipe 20 with light, and detects fume by the light receiving sensitivity of reflected light. The fume detection sensor 60 determines that the cooling pipe 20 is clean when the light receiving sensitivity is good, and continues to monitor the surface state of the cooling pipe 20. Further, when the light receiving sensitivity is deteriorated, the fume detection sensor 60 determines that a large amount of fume adheres to the cooling pipe 20 and generates the detection signal D2. Note that the fume detection sensor 60 is not limited to an optical sensor.

  The control unit 80 drives the motor 50 based on the detection signal D <b> 2 generated by the fume detection sensor 60 to slide the fume removal unit 10 on the cooling pipe 20. Thus, even if the user removes the lid 35 and confirms the fumes attached to the cooling pipe 20 and does not operate the operation unit 70, when a large amount of fumes adheres to the outer surface of the cooling pipe 20, Adhering fumes can be removed.

  Further, the control unit 80 has a timer 81. When the user inputs a predetermined time with the operation unit 70, the control unit 80 sets a predetermined time based on the time input with the operation unit, and when the set time is reached, the timer 81 sends a motor to the control unit 80. 50 is driven. Thereby, even if a user removes the cover part 35 and does not confirm the fume adhering to the cooling pipe 20, the fume adhering to the outer surface of the cooling pipe 20 can be removed for every predetermined time.

  As described above, according to the fume collecting apparatus 200 according to the present embodiment, by providing the motor 50 instead of the handle 16, the user rotates the handle 16 to remove the fume adhering to the cooling pipe 20. Can be reduced. Further, by providing the fume detection sensor 60 or the timer 81, it is possible to reduce the work for the user to remove the lid portion 35 and check the fume attached to the cooling pipe 20.

  In the first and second embodiments, the fume collecting apparatus using the multi-tube type dew condensation means composed of a plurality of pipes has been described. However, the present invention allows a plurality of plate materials to be alternately erected in the vertical direction. The present invention can also be applied to a fume recovery device using labyrinth type dew condensation means. In this case, the squeegee shape can be applied by making the shape according to the upper and lower arrangement of each plate material and the plate thickness.

  DESCRIPTION OF SYMBOLS 1 ... Automatic soldering apparatus, 10 ... Fume removal part (contact part), 11a, 11b, 11c, 11d ... Plate, 12b, 12c, 12d ... Squeegee, 13a, 13b ... Plate fixing part, 14 ... bolt, 15 ... screw shaft, 16 ... handle (rotating part), 17 ... handle fixing part, 18 ... screw shaft support part, 18a ... shaft hole , 19 ... Drive unit, 20 ... Cooling pipe (attachment part), 21 ... Pipe through groove, 30 ... Main body part, 30a, 30b ... Flange, 31 ... Flow port, 32・ ・ ・ Intake port, 33 ... Discharge port, 34 ... Drain pan, 35 ... Lid, 36 ... Seal member, 37 ... Clamp, 38 ... Fan, 39 ... Shaft hole, 50 ... motor (rotating part) 60 ... fume detection sensor, 70 ... operation unit, 80 ... control unit, 81 ... timer, 100, 200 ... fume collecting device (fume collecting portion)

Claims (10)

A soldering apparatus comprising: a solder processing unit that heats and solders an object; and a fume recovery unit that extracts and recovers fumes from the fume-containing gas generated in the solder processing unit,
The fume recovery part is
A main body for taking in the fumes-containing gas;
An adhering portion that is provided in the main body portion, cools the fumed gas taken into the main body portion, and adheres the fumed gas condensed by the cooling to the surface;
A contact portion provided in contact with the attachment portion;
A drive part that slides the contact part along the surface of the adhesion part ,
The contact portion is
Soldering device according to claim Rukoto that having a squeegee having a shape corresponding to the shape of the surface of the attachment portion. The drive unit is
A screw shaft passing through the contact portion;
Provided at one end of the screw shaft, and a rotating part for rotating the screw shaft,
The soldering apparatus according to claim 1, wherein the rotating portion is rotated and the contact portion is slid along the screw shaft. The soldering apparatus according to claim 2 , wherein the rotating unit is configured by a handle or a motor. A controller is connected to the motor,
The soldering apparatus according to claim 3 , wherein the control unit sets a predetermined time and drives the motor every set time. A fume detection sensor is connected to the control unit,
The fume detection sensor is
Detecting fumes adhering to the surface of the adhering part and generating a detection signal,
The controller is
The soldering apparatus according to claim 4, wherein the motor is driven based on the detection signal generated by the fume detection sensor. The adhering part is
The soldering apparatus according to claim 1, comprising a plurality of pipes for flowing a cooling medium inside. The adhering part is
The soldering apparatus according to claim 1, wherein the soldering apparatus is composed of a plurality of plate members that are alternately arranged in the vertical direction. A fume recovery device that extracts and recovers fumes from fumes containing gas generated in a solder processing section,
A main body for taking in the fumes-containing gas;
An adhering portion that is provided in the main body portion, cools the fumed gas taken into the main body portion, and adheres the fumed gas condensed by the cooling to the surface;
A contact portion provided in contact with the attachment portion;
A drive part that slides the contact part along the surface of the adhesion part ,
The contact portion is
Fume collecting device according to claim Rukoto that having a squeegee having a shape corresponding to the shape of the surface of the attachment portion. The adhering part is
9. The fume recovery apparatus according to claim 8 , comprising a plurality of pipes for flowing a cooling medium inside. The adhering part is
The fume recovery device according to claim 8 , comprising a plurality of plate members arranged alternately in the vertical direction.

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