JP2003321158A - Wire rod feeder, and manual insertion type brazing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To intermittently feed a wire rod into an output tube under a stable condition. <P>SOLUTION: In this wire rod feeder, an output pipe 17 is provided projectedly toward a moving clamp 3 side in an end part of the output tube 16, and a guide pipe 18 is provided projectedly toward an output pipe 17 side in an opening part of a through hole of the moving clamp 3. Those are arranged under the condition where a tip part of the guide pipe 18 is inserted into the output pipe 17, when the moving clamp 3 is positioned in the lowermost position of a slide base 1. When the moving clamp 3 is moved to an upper side of the slide base 1, the guide pipe 18 is set to be inserted into the output pipe 17 more deeply. Since the wire rod 13 is surrounded by the guide pipe 18 or the output pipe 17 all the time, the rod 13 is precluded from being buckled between the moving clamp 3 and the output tube 16 to be fed stably. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rod feeding device and a manual brazing device, and more particularly to a wire rod feeding device for feeding a wire rod into a pipe and a manual brazing device for supplying a wire rod serving as a brazing wire when performing manual brazing. It is a thing.

[0002]

2. Description of the Related Art FIG. 3 is an overall front view of a conventional manual brazing device, FIG. 4 is a vertical cross-sectional view of the wire rod feeding mechanism shown in FIG. 3, and FIG. 5 corresponds to FIG. Figure,
It is the figure which showed the state at the time of sending out a brazing material with a wire rod sending mechanism.

With reference to these figures, the manual brazing apparatus is a winding case for a main body case 54 and a winding reel 5 provided under the main body case 54 and around which a wire 13 serving as a brazing material is wound.
1 and a winding portion 56 including a reel receiving base 55 that rotatably holds the winding reel 51, and a wire rod delivery mechanism 2 that is provided inside the main body case 54 and that intermittently delivers the wire rod 13.
0, and a flexible output tube 16 which is provided on the upper surface of the main body case 54 and has a brazing nozzle 52 at the tip thereof and through which the wire 13 passes. Further, the guide roller 5 is provided between the fixed clamp 2 and the winding reel 51.
7a, 57b, 57c are provided.

Further, the wire rod feeding mechanism 20 includes a body case 54.
A slide base 1 fixed to the side surface of the slide base 1, a movable clamp 3 provided on the slide base 1 so as to be vertically movable, a fixed clamp 2 located below the slide base 1, and a linear for moving the movable clamp 3. It consists of an actuator 4. Further, the moving clamp 3 is connected by the piston rod 5 of the linear actuator 4 provided in the main body case 54, and the moving clamp 3 can freely move in the vertical direction on the slide base 1 in accordance with the operation of the piston rod 5. Further, an abutment bolt 11 is provided above the moving clamp 3 so that when the moving clamp 3 moves above the slide base 1, a limit switch (not shown) provided on the upper surface of the moving clamp 3 is touched.

Further, the movable clamp 3 is provided with a through hole 9 in the vertical direction, and a pusher capable of freely inserting / removing the projection 15 into / from the inside of the side surface of the through hole 9 by the operation of an air cylinder (not shown). Equipped with 7.
Further, the fixed clamp 2 is also provided with a through hole 8 in the up-down direction, and is provided with a pusher 6 capable of freely inserting / removing the projection 14 into / from the through hole 8 from the side surface of the through hole 8.

Here, a method of mounting the wire 13 on the main body will be described. The wire 13 is unwound from the winding reel 51 of the unwinding portion 56 and is guided by the guide rollers 57a, 57a.
b and 57c are passed from the lower side to the upper side, and the through hole 8 of the fixed clamp 2 of the wire rod delivery mechanism 20 provided in the main body case 54 is inserted from the lower side to the upper side, and The through hole 9 is inserted from the lower side to the upper side, is inserted from the opening 19 of the output tube 16, and is inserted into the output tube 16 to be inserted.
It is pulled out from the tip of 2.

At this time, the wire 13 is passed straight from the lower surface of the fixed clamp 2 to the opening 19 of the output tube 16 without bending. Further, the wire rod 13 is the winding reel 5
Although it has a curl due to having been wound around 1, it is straightened by passing the guide rollers 57a, 57b, 57c.

Next, the operation of the wire rod delivery mechanism when the wire rod 13 is delivered from the tip of the soldering nozzle 52 will be described. Before the operation is started, the moving clamp 3 is located below the slide base 1. Next, when a foot switch or the like (not shown) is turned on, the pusher 7 of the moving clamp 3 is actuated by the control means (not shown) and the protrusion 1
5 is projected from the side surface of the through hole 9. As a result, the wire 13 located in the through hole 9 provided in the moving clamp 3 is fixed by being sandwiched between the tip of the protrusion 15 and the side surface of the through hole 9. At the same time, the protrusion 14 of the pusher 6 provided on the fixed clamp 2 by the control means is accommodated in the side surface of the through hole 8. As a result, the fixing of the wire rod 13 located inside the through hole 8 provided in the fixed clamp 2 is released. In this state, the moving clamp 3 moves upward of the slide base 1 by the action of the linear actuator 4 controlled by the control means. By this operation, the wire rod 13
Are delivered to the output tube 16.

When the limit switch attached to the movable clamp 3 is turned on by the butting bolt 11 by the upward movement of the movable clamp 3, the control means stops the movement of the movable clamp 3. Next, the control means causes the protrusion 14 of the pusher 6 of the fixed clamp 2 to project into the through hole 8 and fixes the wire rod 13 located in the through hole 8. Next, the protrusion 15 of the pusher 7 of the movable clamp 3
Is accommodated in the side surface of the through hole 9, and the wire rod 13 located in the through hole 9 is released from being fixed. Next, the control means moves the moving clamp 3 to the original position below the slide base 1 in this state. At this time, the wire rod 13 is fixed to the clamp 2
Since the movable clamp 3 is fixed to, the movable clamp 3 is not pulled back with the downward movement.

In this manner, each time the foot switch or the like is turned on, the wire rod 13 is sent by the stroke of the moving clamp 3 from the tip of the brazing nozzle 52 to the part to be brazed and supplied. The amount of wire rod 13 delivered per time can be adjusted by moving the position of the butting bolt 11 in the vertical direction.

[0011]

As described above, the wire 1
3 is a nozzle 5 which can be inserted by a necessary amount by moving the moving clamp 3 by turning on a foot switch or the like.
It is sent from 2. The wire rod 13 delivered from the soldering nozzle 52 is supplied to a predetermined place where brazing is desired.

However, since the output tube 16 is normally used in a bent state, the wire rod 13 and the output tube 1 are not used.
6 The friction with the inner side increases, and the wire 13 may not be delivered into the output tube 16 and may buckle as shown by the broken line 22 in FIG. When the moving clamp 3 is moved upward with the buckling occurring, the wire rod 13 will move to the output tube 16
It is not fed in and is further bent in the space between the moving clamp 3 and the output tube 16 as indicated by the broken line 23 shown in FIG. In this state, the wire 13 is not delivered from the tip of the soldering nozzle 52 even if the moving clamp 3 repeatedly moves up and down.

The present invention has been made to solve the above problems, and provides a wire rod feeding device and a manual brazing device capable of intermittently feeding a wire rod to an output tube in a stable state. The purpose is to

[0014]

In order to achieve the above object, the invention as set forth in claim 1 is a wire rod delivery device for delivering a wire rod intermittently, wherein the delivered wire rod passes through the inside thereof. Output tube and a movable clamp that is placed at a predetermined distance from the output tube, moves toward the output tube with the wire fixed, and retracts with the wire unfixed, and moves with the output tube The wire rod positioned between the clamp and the clamp always surrounds the wire regardless of the position of the moving clamp.

With this construction, the wire rod located between the output tube and the movable clamp advances in the surrounding means.

According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the enveloping means is attached to the movable clamp toward the output tube, and the guide pipe through which the wire passes and the output. An output pipe is attached to the end of the tube on the side of the moving clamp, and at least a part of the guide pipe is held therein so as to be constantly inserted therein.

According to this structure, the wire rod located between the output tube and the movable clamp always advances while being surrounded by the guide pipe or the output pipe.

According to a third aspect of the present invention, in the configuration of the first or second aspect of the invention, the wire is arranged on the opposite side of the guide pipe with respect to the movable clamp, and the wire is freely fixed or fixed. When the fixed clamp to be released and the moving clamp are moving with the wire fixed, the fixed clamp releases the wire, and the moving clamp retreats with the wire fixed. Further includes control means for controlling the movable clamp and the fixed clamp so that the fixed clamp fixes the wire.

According to this structure, only the moving clamp fixes the wire when the wire is delivered, and when the moving clamp retracts, the wire is fixed only to the fixed clamp.

According to a fourth aspect of the present invention, there is provided a manual brazing device for supplying a wire material to be a brazing material, which is connected to the soldering nozzle and the soldering nozzle from which the wire material is delivered from the tip thereof. The output tube through which the wire passes, the winding reel on which the wire is wound and held, the wire taken out from the winding reel is fixed and advanced toward the output tube, and the fixation of the wire is released. And a delivery means for retracting the wire rod intermittently into the output tube, and an enclosing means for always surrounding the wire rod located between the output tube and the delivery means regardless of the position of the delivery means. It is a thing.

With this structure, the wire rod located between the output tube and the movable clamp advances in the enclosing means.

[0022]

As described above, according to the first aspect of the invention, since the wire is always surrounded by the surrounding means, there is no possibility that the wire buckles between the output tube and the moving clamp. The wire rod can be reliably fed into the output tube.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the stable surrounding state of the wire is secured by the output pipe and the guide pipe.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, when the movable clamp is retracted, the fixed clamp fixes the wire, so that the movable clamp is dragged by the movable clamp. Since the wire rod does not retreat, the reliability of the wire feed is improved.

In the invention according to claim 4, since the wire rod located between the moving clamp and the output tube is always surrounded by the surrounding means, there is no risk of buckling between the output tube and the moving clamp. Without, the wire can be reliably delivered to the output pipe. Therefore, the wire can be reliably delivered from the winding reel to the soldering nozzle.

[0026]

1 is a vertical cross-sectional view of the vicinity of a wire rod feeding mechanism of a manual brazing device according to a first embodiment of the present invention, which corresponds to FIG. 4 shown in a conventional example. 2 is a diagram corresponding to FIG. 1 and showing a state when the movable clamp feeds out the wire rod, and is a diagram corresponding to FIG. 5 shown in the conventional example.

Since the basic structure is the same as that shown in the conventional example, the description will not be repeated here and the description will focus on the points different from the conventional example.

With reference to these figures, the wire rod 13 located between the moving clamp 3 and the output tube 16 is surrounded by the surrounding means. This enclosing means is a moving clamp 3
Guide pipe 18 fixed to the upper opening of the through hole 9 of
And an output pipe 17 connected to the end of the output tube 16 on the moving clamp 3 side. The guide pipe 18 is provided so as to project toward the end of the output tube 16 on the moving clamp 3 side, while the output pipe 17 is
The movable clamp 3 is provided so as to project toward the upper opening of the through hole 9.

The inner diameter of the guide pipe 18 is the through hole 9
The diameter of the guide pipe 18 is substantially the same as that of the guide pipe 18, and when the wire rod 13 is inserted, the guide pipe 18 surrounds the wire rod 13 with almost no space. On the other hand, the inner diameter of the output pipe 17 is set to be slightly larger than the outer diameter of the guide pipe 18, so that the guide pipe 18 can be smoothly inserted into the output pipe 17. Further, when the movable clamp 3 is located at the lowermost position of the movable position on the slide base 1, the guide pipe 18 is set so that the tip end thereof is inserted into the output pipe 17. On the other hand, when the moving clamp 3 is located at the uppermost position of the movable position on the slide base 1, the guide pipe 18
Is set so that almost all of the protruding portion is inserted inside the output pipe 17.

Next, the operation of the wire rod feeding mechanism 20 will be described.

When a foot switch (not shown) is turned on from the state where the movable clamp 3 is located at the lowermost position, the movable clamp 3 moves on the slide base 1 as in the conventional example, and a predetermined amount of the wire 13 is delivered. At this time, the moving clamp 3
The guide pipe 18 also moves upward in accordance with the movement.
That is, the guide pipe 18 changes from a state of being shallowly inserted into the output pipe 17 to a state of being deeply inserted.

As a result, the wire 13 delivered from the movable clamp 3 into the output tube 16 is always surrounded by the wrapping means composed of the guide pipe 18 and the output pipe 16. Therefore, the wire rod 13 does not buckle between the moving clamp 3 and the output tube 16 and is stably delivered.

Next, the moving clamp 3 moves downward on the slide base 1 and returns to the original position as in the conventional example. With the movement of the moving clamp 3, the guide pipe 1
8 also moves downward. That is, the guide pipe 18 is
The original state of being shallowly inserted into the output pipe 17 is restored.

By repeating this series of operations, the brazing material 13 is delivered by a predetermined amount.

In the above embodiment, the wire rod 1
Although the brazing material was sent out as 3, wire rods and other wire materials such as a binding band made of synthetic resin can be similarly applied.

In the above embodiment, the guide pipe 18 is provided between the moving clamp 3 and the output tube 16.
And the output pipe 17 are provided to surround the wire rod 13 between them, but the wire rod 13 between them is surrounded by another method.
Just be able to surround For example, the through hole 9 of the moving clamp 3
It may be a bellows-shaped tube that is expandable and contractible and has the other end connected to the output tube 16 and the wire 13 is passed inside.
Alternatively, the diameters of the output pipe 17 and the guide pipe 18 may be reversed and the output pipe 17 may be inserted into the guide pipe 18.

Further, in the above embodiment, the pusher 6 for fixing the wire 13 to the fixed clamp 2 is provided, but it is sufficient to prevent the wire 13 from being pulled back when the movable clamp 3 returns to the fixed clamp 2. So, for example,
Instead of the fixed clamp 2, the wire 13 may be sandwiched by two rollers that rotate only in one direction.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of the vicinity of a wire rod feeding mechanism of a manual brazing device according to a first embodiment of the present invention.

FIG. 2 is a view corresponding to FIG. 1, and is a view showing a state in which a moving clamp has delivered a wire.

FIG. 3 is a front view showing the entire structure of a conventional manual brazing device.

FIG. 4 is a vertical sectional view of the vicinity of the wire rod feeding mechanism shown in FIG.

FIG. 5 is a diagram corresponding to FIG. 4, and is a diagram showing a state when the moving clamp has delivered the wire.

[Explanation of symbols]

2… Fixed clamp 3… Moving clamp 4 ... Linear actuator 13 ... Wire rod 16… Output tube 17 ... Output pipe 18… Guide pipe 51 ... winding reel 52 ... Desoldering nozzle In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (4)

[Claims] 1. A wire rod delivery device for delivering a wire rod intermittently, wherein an output tube through which the delivered wire rod can pass is provided, and the output tube is arranged at a position separated from the output tube by a predetermined distance.
A moving clamp that advances toward the output tube in a state where the wire rod is fixed, and retreats in a state where the wire rod is unfixed, and a wire rod that is located between the output tube and the moving clamp is A wire feeding device having a surrounding means for always surrounding regardless of a position. 2. The enclosing means is attached to the movable clamp toward the output tube, a guide pipe through which a wire passes, and an end portion of the output tube on the movable clamp side, The wire rod feeding device according to claim 1, comprising at least a part of the guide pipe, the output pipe being held in a state of being always inserted therein. 3. A fixed clamp, which is arranged on the opposite side of the guide pipe with respect to the movable clamp, and which freely fixes or releases the fixed wire rod, and the movable clamp that advances in a state in which the wire rod is fixed. When the fixed clamp is in the state where the wire rod is released, and when the movable clamp is retracted in the state where the wire rod is released, the fixed clamp is in the state where the wire rod is fixed. The wire rod feeding device according to claim 1 or 2, further comprising: a control unit that controls the movable clamp and the fixed clamp. 4. A manual brazing device for supplying a wire to be a brazing material, wherein the wire brazing nozzle feeds the wire from its tip, and an output connected to the wire brazing nozzle and through which the wire passes. The tube, the winding reel on which the wire is wound and held, the wire taken out from the winding reel is fixed and advanced toward the output tube, and the wire is retracted with the wire fixed. And a delivery means for intermittently delivering the wire into the output tube, and an enclosing means for always surrounding the wire located between the output tube and the delivery means regardless of the position of the delivery means. Hand brazing device.