JP3001529B1 - Soldering iron with discharge function - Google Patents

Abstract

Abstract: [PROBLEMS] To provide a soldering iron with a discharge function which can perform soldering work with only one hand and has excellent workability and operability.
Also, the present invention provides a soldering iron with a discharge function that can control the amount of solder discharged and stabilizes the amount of discharge. SOLUTION: A solder tank 3 for storing molten solder in which solid solder is charged, a nozzle type iron tip 9 for discharging the molten solder from the tip, and pressing the molten solder in the solder tank 3 to be constant. A push rod 8 which is a member to be sent out to the iron tip 9 side by an amount, a slit gate 10 which is an opening / closing door which is opened and closed in conjunction with the operation of the push rod 8, a drive transmission wire connecting the push rod 8 and the slit gate 10 13, a lever 7 for pressing a push rod 8, an adjusting screw 1 for adjusting a stop position when the slit gate 10 is opened.
4. It has a piston 5 for extruding and compressing the molten solder in the solder tank 3 by the spring pressure of the spring a6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soldering iron with a discharge function, and more particularly to a soldering iron used for mounting electronic components on a printed circuit board.

[0002]

2. Description of the Related Art A conventional soldering iron is used for soldering work.
Hold the soldering iron in one hand and apply the solder to the tip with the other hand.Therefore, the parts to be soldered cannot be fixed by hand. The work was performed while fixing the parts to be soldered. Moreover, in some cases, the parts to be soldered cannot be fixed,
Workability was poor.

[0003]

In order to solve the problem of the conventional soldering iron, for example, Japanese Utility Model Application Laid-Open No. 58-18 / 1983.
No. 673 (conventional example 1) discloses a soldering iron shown in the perspective view of FIG. 3, which has a solder sending-out function and can be operated with one hand. .

In the prior art 1, a solder 101 is passed through a solder delivery tube 103 through a solder insertion hole 108 at a rear portion of a handle 106,
By rotating the solder delivery roller 107 with a fingertip, the solder 101 is delivered to the tip of the solder iron 102. Here, the auxiliary roller 109 is fixed to the auxiliary roller mounting base 110, and is pushed up from below by an auxiliary roller push-up spring 111, so that the solder 101 can be sent out smoothly. Solder 101 is a solder delivery tube 103
, The solder feed roller 107 and the auxiliary roller 1
09, the tip of a soldering iron portion 102, which is an iron tip heated by a soldering iron heater portion 105 to the melting temperature of the solder 101 by a rotation operation of a solder delivery roller 107 for the required amount of solder 101. Delivery tube holding part 10
It is sent from 4. There are other soldering irons with a delivery function, all of which are effective in that the soldering work can be performed with one hand as in Conventional Example 1, but the soldering iron is used. Since the material is passed from the outside, an object that guides the solder such as a delivery tube becomes an obstacle, and there arises a problem that workability and operability are not so good.

Another conventional technique for solving the problem of the conventional soldering iron is disclosed, for example, in Japanese Utility Model Application Laid-Open No. 62-41466.
Japanese Patent Application Publication (Conventional Example 2) discloses an extrusion-type soldering iron shown in a vertical sectional side view of FIG. 4, a partially cut-away enlarged side view, and a partially cut-away enlarged plan view of FIG. And extrudes the required molten solder from the tip of the soldering iron so that the work can be performed with one hand and the extrusion type soldering iron can set the amount of molten solder to be extruded.

In the conventional example 2, similarly to the structure of the mechanical pencil, the inserted solder 201 is tightened to the opening 203 of the gripping member 202 via the ring 204 and the push button 20 is pressed.
5, the gripping member 202 is pushed in, the ring 204 is brought into contact with the opening ring 206, and the opening 203 is opened.
Is opened, and only the gripping member 202 is
7 by the restoring elasticity of FIG.
The gripping member 20 again
2 is tightened to hold the solder 201. By repeating this operation, the solder 201
Are sequentially advanced by the pressing distance of. Ring 20
4 is performed by contact with the release ring 206. However, since the position of the release ring 206 is set by the rotation of the adjustment member 209, the advance distance of the solder 201 is also set. Become.

Here, the tip of the solder 201 which has advanced to the position of the heater 210 is melted here, but does not flow out of the discharge hole 211 due to its adhesive property.
Thus, the molten solder is discharged in accordance with the pressing distance of the solder 201 by the push button 205 for one time.

In this case, the reel 21 is held inside the grip 212.
3, the solder 201 is housed, and the solder 201 is sequentially sent out through the center of the push button 205.
By pushing the button 14 once, the push button 205 is pressed once by the operation of the link lever 215.

In the prior art 2, since the molten solder is discharged by holding the soldering iron with one hand and operating the trigger with the hand, the soldering operation can be performed with one hand, and the adjusting member can be used. The effect is achieved in that the required amount of solder can be set by adjusting the amount of solder. However, since the solder in the solid state is melted by the heater in the soldering iron and the molten solder is ejected from the ejection hole, the amount of the ejected solder is not stable.

Accordingly, an object of the present invention is to provide a soldering iron with a discharge function which is capable of performing a soldering operation with only one hand and has excellent workability and operability.

It is another object of the present invention to provide a soldering iron with a discharge function capable of adjusting a discharge amount of solder and stabilizing the discharge amount.

[0012]

According to the present invention, there is provided a soldering iron having a discharge function, comprising: a solder tank for storing molten solder in which solid solder is charged; and an iron tip for discharging the molten solder from the tip. and parts, and a solder feeding device for discharging the solder to the molten from the soldering tip portion feed by a constant amount, the discharge amount adjusting means for adjusting the discharge amount by adjusting the operation amount of the solder delivery means, said solder tank and Heating means for heating the iron tip and solder supplying means for extruding and compressing the molten solder in the solder tank are provided.

A push rod which is a member for pressing the molten solder in the solder tank portion and feeding the solder by a fixed amount to the iron tip side as the solder sending means;
An opening and closing door that is opened and closed in conjunction with the operation of the push rod, wherein the opening and closing door temporarily closes the molten solder in a closed state, and opens and closes the closed solder in the open state. And has a drive transmission wire connecting the push rod and the opening / closing door, and a lever whose one end is an operation portion and the end of the push rod presses the end. . Further, as the discharge amount adjusting means, the push of the solder feeding means is used.
Adjusting the stop position during the pressing of Shuroddo has an adjusting screw for adjusting the stop position of the opening time of said door coupled to the push rod. Further, as the solder supply means, a piston for extruding and compressing the molten solder in the solder tank by a spring pressure is provided. In addition, the iron tip has a nozzle-shaped iron tip.

According to the present invention, the amount of solder discharged can be adjusted, and the amount of discharged solder is stable.

[0015]

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a partial sectional view showing the operation of the embodiment of FIG.

As shown in FIG. 1, a soldering iron with a discharge function according to the present embodiment has a solder inlet 2 for charging solid solder, and accommodates molten solder charged with solid solder. A solder tank 3, a nozzle-type iron tip 9 for discharging molten solder from the tip, a push rod 8, which is a member that presses the molten solder in the solder tank 3 and sends the solder to the iron tip 9 side by a fixed amount. , A spring b11 for normally pushing up and closing the slit gate 10, a drive transmission wire 13 connecting the push rod 8 and the slit gate 10, and a drive transmission The pulley 12 serving as a fulcrum of the wire 13, the lever 7 serving as an operating point at one end of which is an operation part and the end of the push rod 8 is pressed, and the operated lever 7 are returned to the original state. The spring c15, the adjusting screw 14 for adjusting the stop position when the slit gate 10 is opened, the heater 4 for heating the solder tank 3 and the iron tip 9, and the molten solder in the solder tank 3 are pushed out by the spring pressure of the spring a6. It comprises a piston 5 for compression.

Here, the soldering iron with the discharging function operates as shown in FIGS. Solder 1 to be used
Uses a precision solder with a large amount of flux, and uses a solid cylindrical body that matches the shape and dimensions of the solder tank 3 inside the soldering iron.

First, as shown in FIG. 1 and FIG. 2A, the solder inlet 2 is opened, and the solid solder 1 is charged into the solder tank 3. When the power is turned on, the solid solder 1 in the solder tank 3 is heated and melted by the heater 4 to become a liquid solder 1a.

Then, as shown in FIG. 2B, the liquid solder 1a in the solder tank 3 is pressed by the spring A6 to push the piston 5 in the direction of the arrow A.
And is extruded to the slit gate 10 and compressed.

Here, as shown in FIG. 2C, when the lever 7 is pulled, the push rod 8 rises in the direction of the arrow C, causing the liquid solder 1a in the solder tank 3 to pass through the slit gate 10.
At the same time, the wire 13 is pulled in the direction of arrow D, the slit gate 10 descends in the direction of arrow E with the pulley 12 as a fulcrum, and the liquid solder 1a is sent out in the direction of the iron tip 9 of arrow F. It is.

Then, as shown in FIG.
Is completed, the compressed spring c
The returning force of 15 acts on the lever 7, the push rod 7 descends, the wire 13 is loosened, and the slit gate 10 in which the wire 13 is loosened rises and closes by the returning force of the compressed spring b11, and returns to the original position. Return to the state. The liquid solder 1a is discharged from the iron tip 9 by repeating the above operation.

Here, the slit gate 10 is pushed up by the spring b11 and is normally closed. Adjustment screw 1
Numeral 4 is for adjusting the stop position when the slit gate 10 is lowered (that is, when it is opened). By rotating the adjusting screw 14, the height of the adjusting screw 14 changes and the adjusting screw 14 is adjusted.
The stop position of the slit gate 10 that stops when the slit gate 10 is opened changes, and the rising position of the push rod 8 changes accordingly.
The discharge amount from the nozzle can be varied and adjusted.

Then, the part to be soldered is sufficiently heated to the working temperature by the iron tip 9, the lever 7 is pulled, and the liquid solder 1a is discharged from the iron tip 9 to perform the soldering operation.

[0024]

As described above, according to the present invention, the molten liquid solder can be discharged from the iron tip of the soldering iron, so that the soldering operation can be performed with only one hand. The effect that the operability is excellent is obtained. In addition, by adjusting the stop position when the slit gate, which is the opening / closing door, connected to the push rod, which is the sending member of the soldering iron, the amount of liquid solder to be sent out, that is, the amount of discharge from the iron tip, can be adjusted. Is heated and melted, and the liquid solder is sent out not by the solid solder to be melted but by the push rod as the sending member, so that the effect of stabilizing the discharge amount and performing the accurate soldering operation can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a soldering iron with an ejection function of the present invention.

FIG. 2 is a partial sectional view showing the operation of the embodiment of FIG.

FIG. 3 is a perspective view illustrating a conventional technique.

FIG. 4 is a vertical sectional side view for explaining another conventional technique.

FIG. 5 is an enlarged side view of a partially cut-away view and an enlarged plan view of a partially cut-away view of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solder (solid) 1a Solder (liquid) 2 Solder inlet 3 Solder tank 4 Heater 5 Piston 6 Spring a 7 Lever 8 Push rod 9 Iron tip 10 Slit gate (opening and closing door) 11 Spring b 12 Pulley 13 Wire 14 Adjustment screw 15 Spring c 101 Solder 102 Solder iron section 103 Solder delivery pipe 104 Delivery pipe holding section 105 Soldering iron heater section 106 Pattern section 107 Solder delivery roller 108 Solder insertion hole 109 Auxiliary roller 110 Auxiliary roller mounting base 111 Auxiliary roller push-up spring 201 Solder 202 Gripping Member 203 Opening 204 Ring 205 Push Button 206 Opening Ring 207 Spring 208 Step 209 Adjusting Member 210 Heater 211 Discharge Hole 212 Grip 213 Reel 214 Trigger 215 Lin Lever

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B23K 3/02 B23K 3/06

Claims (6)

(57) [Claims] 1. A solder tank in which solid solder is charged and containing molten solder, an iron tip for discharging the molten solder from a tip, and a fixed amount of the molten solder which is sent out by a predetermined amount to the iron tip. A solder delivery unit for discharging from the unit, a discharge amount adjustment unit for adjusting a discharge amount by adjusting an operation amount of the solder delivery unit , a heating unit for heating the solder tank unit and the iron tip, and And a solder supply means for extruding and compressing the molten solder. 2. A push rod, which is a member for pressing the molten solder in the solder tank portion and sending the solder to the iron tip side by a fixed amount as the solder sending means, and opening and closing in conjunction with the operation of the push rod. 2. The door according to claim 1, wherein the door is temporarily closed when the molten solder is closed, and the closed solder is sent out by the push rod when the door is open. Soldering iron with discharge function. 3. The solder feeding means includes a drive transmission wire connecting the push rod and the door, and a lever having one end serving as an operating portion and the end of the push rod pressing. The soldering iron with a discharging function according to claim 2, wherein the soldering iron has a discharging function. 4. A stop position when the push rod is pressed by the solder feeding means as the discharge amount adjusting means.
The soldering iron with a discharge function according to claim 2, further comprising an adjusting screw for adjusting a stop position of the opening / closing door connected to the push rod when the opening is opened . 5. The soldering iron with a discharging function according to claim 1, wherein said solder supply means includes a piston for pushing out and compressing the molten solder in said solder tank portion by a spring pressure. 6. The soldering iron with a discharge function according to claim 1, wherein the iron tip has a nozzle tip having a nozzle shape.