JP6727611B2 - Iron tip cleaner for soldering iron - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soldering iron tip cleaner for cleaning soldering iron tips by removing solder scraps attached to the soldering iron tips by air blow.

This type of iron tip cleaner is known as disclosed in, for example, Japanese Patent Application Laid-Open No. 2004-242242. A known trowel cleaner has a box-shaped cleaner case with a slender cylindrical nozzle hole having an injection port at its tip, and the injection angle can be adjusted in such a posture that the injection port is located inside the cleaner case. As described above, the air is jetted from the jet port to the tip of the soldering iron inserted into the cleaner case, so that the solder scraps attached to the soldering tip are blown off and removed. This iron tip cleaner is attached to an automatic soldering device and is used for cleaning the iron tip of the solder iron periodically during the soldering work.

When cleaning the iron tip, the solder dust blown off from the iron tip by air scatters inside the cleaner case and adheres to the side wall and bottom wall, but most of the solder dust is regularly discharged from the nozzle hole. Due to such a flow of air and the weight of the solder scraps, the dust drops intensively at a certain place on the bottom wall of the cleaner case and accumulates in a columnar shape. The height of the pillar due to the accumulation of the solder scraps increases every time the cleaning of the iron tip is performed, and eventually the contact with the iron tip and the reattachment to the iron tip occur. Therefore, the conventional iron tip cleaner has to discharge the accumulated solder scraps frequently in a short time, and it is difficult to continuously use the solder scrap for a long time.

JP, 2004-344920, A

A technical problem of the present invention is to provide a soldering tip cleaner that enables continuous use for a long time by preventing concentrated deposition of solder scraps separated from the soldering iron tip at a certain place. Especially.

The iron tip cleaner of the present invention has a cleaner box having an insertion hole for inserting the tip of the soldering iron on the upper surface and an opening inside the cleaner box, and the solder dust attached to the tip of the soldering iron is sprayed with air. A second nozzle hole that is opened inside the cleaner box and that changes the falling direction of the solder scraps peeled from the iron tip by jetting air. The second nozzle hole is horizontal. It is characterized by comprising a long hole elongated in the direction and injecting air in a horizontally long plane shape.

In the present invention, it is desirable that the hole width of the second nozzle hole is gradually expanded and that the second nozzle hole is disposed below the first nozzle hole.
According to the specific configuration of the present invention, the nozzle member is housed inside the cleaner box, and the nozzle member is provided with the first nozzle hole and the second nozzle hole.
In this case, it is desirable that the jetting angle of air from the first nozzle hole and the second nozzle hole can be changed by changing the posture of the nozzle member.

According to another specific configuration of the present invention, an outer lid and an inner lid are dually provided on the upper surface of the cleaner box, and the insertion hole for inserting the iron tip of the soldering iron has an outer lid and an inner lid. The opening area of the second insertion hole formed in the inner lid is smaller than the opening area of the first insertion hole formed in the outer lid and formed in the outer lid.
In this case, the first insertion hole is formed in the first mask plate attached to the outer lid, the second insertion hole is formed in the second mask plate attached to the inner lid, and each mask plate is It is desirable that the soldering iron has such flexibility and elasticity that it can be deformed when the tip of the soldering iron comes into contact with it.

According to the present invention, in addition to the first nozzle hole for exfoliating the solder waste attached to the iron tip of the solder iron by the air injection, the second direction for changing the falling direction of the solder waste exfoliated from the iron tip by the air injection By providing a nozzle hole and injecting air from this second nozzle hole in a state of spreading in a plane, solder scraps separated from the iron tip are concentratedly deposited at a certain place on the bottom of the drawer. As a result, the trowel cleaner can be used continuously for a long time.

It is a side view of the iron cleaner according to the present invention. It is a top view of a tip cleaner. It is a front view of a tip cleaner. It is a partial side view of a state where the outer lid and the inner lid of the iron tip cleaner are removed and the drawer is pulled out halfway. It is a top view of an outer lid. It is a side view of an outer lid. It is a top view of an inner lid. It is a side view of an inner lid. It is a side view which shows a nozzle member and a support arm, and is a figure which fracture|ruptures and shows a part of nozzle member. It is the front view which looked at FIG. 9 from the left side, and is a figure in the state which removed the cover. FIG. 12 is a plan view of FIG. 11. It is a principal part side view which shows the state which attached the nozzle member horizontally. It is a principal part side view which shows the state which attached the nozzle member to the front inclination posture. It is a side view which shows an example of the state which is cleaning the iron tip of the soldering iron. It is a side view showing another example of the state where the tip of a soldering iron is being cleaned.

1 to 3 show an embodiment of a trowel cleaner according to the present invention. As shown in FIG. 14 and FIG. 15, this iron tip cleaner is for cleaning the iron tip 1a of the solder iron 1 to which the solder scrap is attached by jetting air, and a cleaner box 10 having an air blow area inside and a cleaner It has a nozzle member 11 arranged inside the box 10, and a first nozzle hole 12 and a second nozzle hole 13 that open at the upper and lower end positions of the front end surface of the nozzle member 11.
The first nozzle hole 12 is a nozzle hole for peeling the solder scraps attached to the iron tip 1a of the soldering iron 1 by jetting air, and the second nozzle hole 13 is the solder scraps peeled from the soldering tip 1a. Is a nozzle hole for disperse|distributed by the injection of air and not to concentrate on one place and to drop.

The cleaner box 10 is a box-shaped member having a rectangular parallelepiped shape elongated in the front-rear direction, and includes an outer box 14, an inner box 15 nested inside the outer box 14, and a front side of the outer box 14. It has a drawer 16 that can be freely taken in and out.

The outer box 14 is composed of a container-shaped outer box main body 17 whose upper surface and a part of the front surface are open, and a square shallow dish-shaped outer lid 18 which is detachably attached to the upper surface of the outer box main body 17. The inner box 15 includes an inner box body 19 having a U-shape in a plan view, the top and bottom surfaces of which are open, and a flat plate-like inner lid 20 attached to the upper surface of the inner box body 19 so as to be openable and closable. Has become.

Further, the drawer 16 is for accommodating and carrying out the solder scraps separated from the iron tip 1a of the soldering iron 1, covers the front surfaces of the inner box 15 and the outer box 14, and serves as the bottom of the inner box 15. To fulfill. As can be seen from FIG. 4, the handle 16 b is attached to the front wall 16 a of the drawer 16, and the port plate 21 is attached to the upper end of the front wall 16 a. The support arm 22 is attached to the port plate 21. The nozzle member 11 is supported via the. Further, an exhaust port 23 is formed in the front wall 16a of the drawer 16, one end of a suction pipe 24 is connected to the exhaust port 23, and the other end of the suction pipe 24 is connected to the atmosphere via a suction mechanism (not shown). Has been done.

The outer lid 18 and the inner lid 20 are made of a magnetic material such as an iron plate and are formed as follows.
First, the outer lid 18 will be described. As apparent from FIGS. 5 and 6, the magnet mounting frame 27 is fixed to the lower surface of the top plate 18a, and the two frame sides 27a of the magnet mounting frame 27 that are continuous in an L shape. , 27b, magnets 28 are attached via holders 29, respectively.

On the other hand, as shown in FIGS. 7 and 8, the inner lid 20 has a rectangular plate shape having a smaller diameter than the outer lid 18, and is integrated with the outer lid 18 by being attracted to the magnet 28 of the outer lid 18. In that state, when the outer lid 18 is attached to the outer box 14, the inner lid 20 covers the upper surface of the inner box 15, and when the outer lid 18 is removed from the outer box 14, the inner lid 20 is also removed from the inner box 15. It is like this.

Further, in the outer lid 18 and the inner lid 20, when the both are integrated, the elongated positioning projections 30 are downwardly provided on a part of the magnet mounting frame 27 of the outer lid 18 so as to be fitted and positioned to each other. The inner lid 20 is formed in a protruding state, and a slit-shaped positioning hole 31 is formed in the inner lid 20.
When removing the inner lid 20 from the outer lid 18, the inner lid 20 may be separated from the outer lid 18 by a force stronger than the attraction force of the magnet 28.

Further, in the outer lid 18 and the inner lid 20, a first insertion hole 32 having a large opening area and a second insertion hole 33 having a small opening area are inclined as shown in FIGS. 12 and 13. The soldering iron 1 is formed in such a shape and arrangement that the tip 1a of the soldering iron 1 and the solder supply needle 2 can be inserted into the cleaner box 10. In this way, the first insertion hole 32 and the second insertion hole 33 having different opening areas are provided in the upper and lower double layers on the outer lid 18 and the inner lid 20 in order to prevent the solder blown from the iron tip 1a by the air jet. This is to prevent dust from jumping out as much as possible.

As can be seen from FIG. 5, the first insertion hole 32 formed in the outer lid 18 has an elliptical trowel insertion portion 32a and one end in the long axis direction of the trowel insertion portion 32a extending in the longitudinal direction of the outer lid 18. The needle insertion portion 32b has a uniform hole width and extends, and the hole width D1 in the minor axis direction of the trowel insertion portion 32a is larger than the hole width D2 of the needle insertion portion 32b.

On the other hand, as can be seen from FIG. 7, the second insertion hole 33 formed in the inner lid 20 has a long hole-shaped trowel insertion portion 33a, and the longitudinal direction of the inner lid 20 from one end of the trowel insertion portion 33a in the long axis direction. The needle insertion portion 33b extends in the direction, and the needle insertion portion 33b is divided into a narrow portion 33c having a uniform hole width and a wide portion 33d having a long hole shape. The hole width D3 of the trowel insertion portion 33a in the minor axis direction is larger than the hole width D4 of the narrow width portion 33c and the hole width D5 of the wide width portion 33d of the needle insertion portion 33b, and the hole width D4 of the narrow width portion 33c is equal to the wide width portion 33d. Is smaller than the hole width D5.

Further, the hole width D3 of the trowel insertion portion 33a in the second insertion hole 33 is smaller than the hole width D1 of the trowel insertion portion 32a in the first insertion hole 32, and the hole width D4 of the needle insertion portion 33b in the second insertion hole 33 and D5 is smaller than the hole width D2 of the needle insertion portion 32b in the first insertion hole 32.

The first insertion hole 32 and the second insertion hole 33 are formed in the mask plates 34 and 35 attached to the outer lid 18 and the inner lid 20, respectively.
That is, in the outer lid 18, as shown in FIG. 5 and FIG. 6, a rectangular window hole 18b is formed in the top plate 18a, and the first mask plate 34 covers the top hole 18b so as to cover the window hole 18b. The first mask plate 34 is fixed to the lower surface with screws 36, and the first insertion holes 32 are formed in the first mask plate 34.
In addition, in the inner lid 20, as shown in FIGS. 7 and 8, a rectangular window hole 20a is formed in the inner lid 20, and a plurality of second mask plates 35 are provided so as to cover the window hole 20a. The second mask plate 35 is attached with a screw 37, and the second insertion hole 33 is formed in the second mask plate 35.

The first mask plate 34 and the second mask plate 35 are formed of a material having heat resistance, flexibility and elasticity so that the first mask plate 34 and the second mask plate 35 can be deformed when they come into contact with the iron tip 1a or the solder supply needle 2. An example of such a material is silicon resin. Thereby, even if the iron tip 1a and the solder supply needle 2 come into contact with the mask plates 34 and 35, damage to the iron tip 1a and the solder supply needle 2 is prevented.

As is clear from FIGS. 4 and 9 to 11, the nozzle member 11 is a block-shaped member having a hexagonal shape in plan view, and the front end portion 11a is gradually tapered. A first air chamber 41 and a second air chamber 42, each of which is a circular hole whose axis extends in the up-down direction, are formed in the interior of 11 coaxially with each other in the vertical direction. The lower end of the second air chamber 42, which is closed by the flat first lid plate 43 fixed to the upper end surface of the nozzle 11 with the screw 43a, is fixed to the lower end surface of the nozzle member 11 with the screw 44a. It is closed by the second lid plate 44. Therefore, the upper end surface and the lower end surface of the nozzle member 11 are flat surfaces excluding the heads of the screws 43a and 44a.

Then, a slit-shaped first nozzle hole 12 which is an elongated hole is formed laterally between the first lid plate 43 and the upper end surface of the nozzle member 11, and the first nozzle hole 12 is the first air chamber. The first air introduction port 45, which opens to the back surface of the nozzle member 11 while communicating with the upper end portion of 41, communicates with the lower end portion of the first air chamber 41. In addition, a slit-shaped second nozzle hole 13 formed of a long and narrow elongated hole is formed between the second lid plate 44 and the lower end surface of the nozzle member 11, and the second nozzle hole 13 is the second hole. A second air introduction port 46 that opens to the back surface of the nozzle member 11 communicates with the lower end of the air chamber 42 and communicates with the upper end of the second air chamber 42.

As is apparent from FIG. 11, the first nozzle hole 12 has a substantially uniform hole width over the entire length from the hole rear end communicating with the first air chamber 41 to the hole tip opening to the outside. The second nozzle hole 13 is a hole whose hole width gradually increases from the rear end of the hole communicating with the second air chamber 42 to the front end of the hole opened to the outside. The hole width of the hole tip portion of 13 is larger than the hole width of the hole tip portion of the first nozzle hole 12.

The support arm 22 that supports the nozzle member 11 has an L-shape in a plan view, and has a rectangular plate-shaped substrate portion 50 detachably attached to the port plate 21 with a screw 52, and one of the left and right sides of the substrate portion 50. 12 and the nozzle member 11 is provided at the tip of the support plate portion 51, and the support plate portion 51 is fixed to the side end of the support box portion 51 with a screw 51a and extends inward of the cleaner box 10. As can be seen from FIG. 13, the two mounting screws 53 and the two pairs of screw insertion holes 54a and 54b formed in the support plate portion 51 are mounted so that the mounting position can be changed. The injection angle of can be changed.

That is, as shown in FIGS. 9 and 12, when the two mounting screws 53, 53 are inserted into the first screw insertion holes 54a, 54a and the nozzle member 11 is attached to the support plate portion 51, the nozzle member 11 becomes horizontal. Air is ejected in the horizontal direction from the first nozzle hole 12 and the second nozzle hole 13, and the two mounting screws 53, 53 are inserted into the second screw insertion holes 54b, 54b as shown in FIG. When the member 11 is attached to the support plate portion 51, the nozzle member 11 is slightly inclined forward and air is jetted obliquely downward from the first nozzle hole 12 and the second nozzle hole 13. The mounting posture of the nozzle member 11 is changed in this manner in order to properly orient the first nozzle hole 12 to the iron tip 1a in accordance with the inclination angle of the soldering iron 1 attached to the soldering device.

The first air introduction port 45 of the nozzle member 11 and the outlet of the first air relay hole 55 formed in the substrate portion 50 have one end and the other end of a first air introduction pipe 56 made of a synthetic resin tube. , Connected via joints 57a and 57b, respectively, and similarly, the second air introducing port 46 of the nozzle member 11 and the outlet of the second air relay hole 58 formed in the base plate portion 50 are made of a synthetic resin tube. One end and the other end of the second air introduction pipe 59 composed of are connected via joints 60a and 60b, respectively.

Further, insert-type joints 61 are attached to the inlets of the first air relay hole 55 and the second air relay hole 58 of the board portion 50, respectively. When the board portion 50 is attached to the port plate 21, the joint 61 is attached. , 61 are inserted and connected to the outlet portion 62a of the first port 62 and the outlet portion 63a of the second port 63 formed in the port plate 21 via O-rings 64, respectively.

Further, a first pipe joint 67 is attached to the inlet of the first port 62 to connect the first air supply pipe 68, and a second pipe joint 69 is attached to the inlet of the second port 63 to form a second pipe. An air supply pipe 70 is connected, and the first air supply pipe 68 and the second air supply pipe 70 are combined into one by a merging joint 71, and a common air pipe is connected to the merging joint 71. It is designed to be connected to an air source.
Further, the first pipe joint 67 has a built-in flow rate adjusting valve having a variable throttle, and by rotating the operating element 67a to adjust the opening area of the variable throttle, the flow rate of air can be adjusted. Is becoming

A cover 73 that covers the first air introduction pipe 56 and the second air introduction pipe 59 is attached to the base plate portion 50 and the support plate portion 51 of the support arm 22 with screws 74. The cover 73 is formed by integrally connecting a top plate 73a, a bottom plate 73b, a front plate 73c, and one side plate 73d, and the nozzle member 11 is located forward from an opening 73e formed at a side end portion of the front plate 73c. It projects toward (the rear wall 15a side of the inner box 15). When this cover 73 is attached to the support arm 22 as shown by the chain line in FIG. 11, a support box 75 having a rectangular box shape is formed, and inside the support box 75, the first air introduction pipe 56 and the second air introduction The tube 59 is accommodated and the nozzle member 11 is supported by the front end of the support box 75.
With this structure, it is possible to prevent the solder scraps peeled from the iron tip 1a and scattered from adhering to the air introduction pipes 56, 59, the joints 57a, 57b, 60a, 60b and the like.

When the iron tip cleaner having the above configuration is attached to the soldering device, the mounting posture of the nozzle member 11 is set such that the inclination of the soldering iron 1 attached to the soldering device is as shown in FIGS. Adjustment is made according to the angle by the two mounting screws 53, 53 and the two pairs of screw insertion holes 54a, 54a and 54b, 54b.

Next, when cleaning the iron tip 1a with the iron tip cleaner, the soldering iron 1 and the solder supply needle 2 are inserted into the cleaner box 10 through the first insertion hole 32 and the second insertion hole 33 in the inclined posture. To do. At this time, since the nozzle member 11 as a whole is housed in the cleaner box 10 in a non-projecting state, and the first nozzle hole 12 is formed at the upper end position of the front surface of the nozzle member 11, the inclination of the soldering iron 1 is inclined. Even when the angle and the position of the solder supply needle 2 are variously different, the soldering iron 1 is housed inside the cleaner box 10 without causing the position competition with the nozzle member 11, and the iron tip 1a is inserted into the first nozzle hole 12. You can get closer.
Then, air is jetted from the first nozzle hole 12 and the second nozzle hole 13 with the trowel 1a positioned immediately before the first nozzle hole 12, and at the same time, the suction mechanism is also activated, whereby the cleaner box The inside of 10 is evacuated by the suction pipe 24.

By doing so, the solder scraps attached to the iron tip 1a are surely blown off from the horizontally elongated first nozzle hole 12 by the air which is not linear but is linearly ejected in the width direction of the iron tip 1a. , Falls inside the drawer 16. Then, in the middle of falling, the falling direction can be changed by the air jetted from the second nozzle hole 13 having a divergent shape in a horizontally long and divergent plane shape (air curtain shape), and the particles are dispersed and the bottom portion of the drawer 16 is covered. It is possible to prevent it from being concentrated on only one part and falling. As a result, since the solder scraps are prevented from being deposited in a columnar shape on a part of the bottom of the drawer 16, the disadvantage that the solder scraps deposited in a columnar shape are contacted with the iron tip 1a and redeposited is eliminated. Therefore, the frequency of discharging the solder scraps accumulated in the drawer 16 is reduced, and the iron tip cleaner can be continuously used for a long time.

Further, the solder scraps blown off from the iron tip 1 a are provided with the first insertion hole 32 and the second insertion hole 33 in the outer lid 18 and the inner lid 20 in a double manner, and the second insertion of the inner lid 20 is performed. Since the opening area of the hole 33 is small, most of the hole 33 is blocked by the inner lid 20 and is unlikely to jump out of the cleaner box 10.
However, when it is possible to prevent the solder scrap from popping out by only one of the first insertion hole 32 and the second insertion hole 33, it is possible to omit either one of the insertion holes.

It should be noted that a part of the solder scrap, which has been blown off from the iron tip 1a by the air from the first nozzle hole 12 and then changed in the lateral direction by the air from the second nozzle hole 13, is part of the inner wall surface of the inner box 15. However, if the amount of adhered amount increases and the column becomes long, it will break due to its own weight and fall into the drawer 16, so there is no inconvenience that the column of solder scrap contacts the iron tip 1a. Unlikely to occur.
It is desirable to coat the inner surfaces of the inner box 15 and the drawer 16 with a fluororesin or a fluorine-containing plating layer so that the attached solder scraps can be easily peeled off and can be easily cleaned and maintained. ..

When the solder scraps are accumulated in the drawer 16, the drawer 16 is pulled out with the outer lid 18 and the inner lid 20 removed as shown in FIG. 4, and the solder scraps inside are discarded. In this case, by preparing a plurality of drawers 16 having the same configuration and using them while exchanging them, it is possible to shorten the downtime of the soldering device when discarding the solder scraps and improve the operation rate. ..

In the illustrated embodiment, one nozzle member 11 is provided with both the first nozzle hole 12 and the second nozzle hole 13, but two nozzle members are provided inside the cleaner box 10, and one of the first nozzle member 12 is provided. The first nozzle hole 12 may be provided in the nozzle member, and the second nozzle hole 13 may be provided in the other second nozzle member.

Further, the first air introduction port 45 and the second air introduction port 46 of the nozzle member 11 and the first air relay hole 55 and the second air relay hole 58 of the substrate portion 50 of the support arm 22 are the first air introduction pipe. 56 and the second air introduction pipe 59 are connected, the support arm 22 is formed of a columnar member, and two flow streams in place of the first air introduction pipe 56 and the second air introduction pipe 59 are formed inside the member. By forming the passage hole, the first air introduction pipe 56 and the second air introduction pipe 59 can be eliminated.

Further, the first nozzle hole 12 may be a circular hole, and the second nozzle hole 13 may be a plurality of small holes formed side by side.

1 Solder Iron 1a Iron Tip 10 Cleaner Box 11 Nozzle Member 12 First Nozzle Hole 13 Second Nozzle Hole 18 Outer Lid 20 Inner Lid 32 First Insertion Hole 33 Second Insertion Hole 34 First Mask Plate 35 Second Mask Plate 41th 1 air chamber 42 2nd air chamber 45 1st air introduction port 46 2nd air introduction port

Claims (7)

In a tip cleaner that cleans the tip by peeling the solder scraps adhering to the tip of the soldering tip with air,
The iron tip cleaner has a cleaner box that has an insertion hole for inserting the iron tip of the solder iron and the inside of the cleaner box, and the solder dust attached to the iron tip of the solder iron is separated by air injection. It has a first nozzle hole and a second nozzle hole that opens inside the cleaner box and changes the falling direction of the solder scraps separated from the iron tip by jetting air.
The second nozzle hole is composed of an elongated hole elongated in the horizontal direction, and ejects air in a horizontally elongated plane shape.
Iron tip cleaner for soldering irons. The iron tip cleaner according to claim 1, wherein a hole width of the second nozzle hole is gradually expanded. The trowel cleaner according to claim 1 or 2, wherein the second nozzle hole is disposed below the first nozzle hole. The tip cleaner according to any one of claims 1 to 3, wherein a nozzle member is housed inside the cleaner box, and the nozzle member is provided with a first nozzle hole and a second nozzle hole. The iron tip cleaner according to claim 4, wherein the injection angle of the air from the first nozzle hole and the second nozzle hole can be changed by changing the posture of the nozzle member. An outer lid and an inner lid are provided in double on the upper surface of the cleaner box, and insertion holes for inserting the soldering iron tips are formed in the outer lid and the inner lid, respectively. The iron tip cleaner according to claim 1, wherein the opening area of the second insertion hole formed in the inner lid is smaller than the opening area of the first insertion hole. The first insertion hole is formed in the first mask plate attached to the outer lid, the second insertion hole is formed in the second mask plate attached to the inner lid, and each mask plate is formed by a soldering iron trowel. The iron tip cleaner according to claim 6, wherein the tip cleaner has flexibility and elasticity such that it can be deformed when the tips come into contact with each other.

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