JPH057747Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a flux coating device that applies a flux solution to the stripped end of a covered electric wire.

(Prior art and its problems) This type of device has traditionally pumped up a flux solution in a flux tank using a circulation device such as a circulation pump or an impeller, and while jetting the flux solution downward from an upper position, There is an apparatus (for example, Japanese Patent Application Laid-Open No. 118284/1984) which passes the stripped end of a coated wire through the sprayed flux area and applies a flux solution to the stripped end.

By the way, as mentioned above, the conventional flux coating apparatus is provided with a circulation device for pumping up the flux solution in the flux tank, and the flux solution is circulated and used. Therefore, the flux solution is automatically supplied even during the flux application operation. However, this circulation device is expensive, and as a result, there is a problem in that the cost of the flux coating device increases.

Furthermore, since the flux solution contains chlorine, corrosion of metal members by the flux solution poses a problem. In particular, since the above device is of a jet type, the flux solution scatters around the device when the flux solution is jetted, corroding metal members around the device. Further, since the flux solution is circulated, metal members present on the circulation path of the flux solution are also corroded by the flux solution in the same manner as described above.

Furthermore, in the above device, surplus flux solution is collected into a flux tank and reused.
A flux tank, circulation device, pan for collecting excess flux solution, etc. are integrated. Therefore, it becomes difficult to clean each part. In addition, in order to perform continuous operation, it is necessary to supply a flux solution to a flux tank as needed. It is also conceivable to provide a separate container for continuous supply. However, although this container is configured to be detachable, if the container is moved with the flux solution left inside the container,
There is a risk that the flux solution may scatter from inside the container to the surrounding area. Therefore, when moving a container because it is necessary to replenish the container with flux solution, for example, it is necessary to do so after the flux solution has almost completely disappeared, so the operator must frequently check the remaining amount of flux solution. There is a problem that it requires monitoring and maintenance is poor.

(Purpose of the invention) This invention was made to solve the above problems, and the purpose is to provide an inexpensive flux coating device that can prevent the flux solution from scattering and is easy to maintain. do.

(Means for Achieving the Object) The invention of claim 1 is a flux coating device for applying a flux solution to the stripped end of a coated wire, and in order to achieve the above object, a flux tank for storing the flux solution is provided. and a flux supply tank comprising a container having a replenishing lid, which is detachable from the flux tank, and which supplies the flux solution to the flux tank so that the liquid level of the flux solution in the flux tank is constant. , control means for controlling the flow of flux solution from the flux supply tank to the flux tank;
While holding the flux absorbing material, at least a portion of which is immersed in the flux solution in the flux tank, and the covered wire, the coating is applied so that the stripped end of the covered wire is pressed against the flux absorbing material. and a wire holding and moving means for moving the wire and applying the flux solution to the stripped end.

Further, the invention of claim 2 is a flux application device for applying a flux solution to the stripped end of a coated wire, and in order to achieve the above object, the device includes a flux tank for storing the flux solution and a replenishment lid. a flux supply tank that is detachable from the flux tank and supplies the flux solution to the flux tank so that the liquid level of the flux solution in the flux tank is constant; a control means for controlling the flow of a flux solution into a flux tank; a flux absorbing material at least partially immersed in the flux solution in the flux tank; a wire holding means for holding the covered wire; and a wire holding means for holding the covered wire; moving the flux absorbing material and the flux tank together so as to press the flux absorbing material against the stripped end of the electric wire,
and a moving means for applying the flux solution to the stripped end.

(Embodiments) A First Embodiment FIG. 1A is a sectional view showing an embodiment of the flux coating device according to this invention. This flux applicator A includes a flux supply tank 1, a flux tank 2, a flux absorber 3, and a receiving tray 4.
and a wire holding and moving means (not shown).

FIG. 1B is a partially enlarged sectional view of the device shown in FIG. 1A. As shown in FIGS. 1A and 1B, a flux supply tank 1 is removably installed above a flux tank 2, and
A supply nozzle 5 of the flux supply tank 1 penetrates into the flux tank 2 through a hole 6 provided in a part of the upper surface of the flux tank 2. Note that a through hole 5a is formed in the distal end of the supply nozzle 5 in the lateral direction. Therefore, when the stopcock 7 provided above the supply nozzle 5 is opened, air is introduced from the through hole 5a and is transferred to the sealed flux supply tank 1 via the supply nozzle 5. A flux solution 8 is supplied from the flux supply tank 1 to the flux tank 2 in accordance with the amount. Note that this operation is continued until the liquid level of the flux solution 8 in the flux tank 2 and the height position of the through hole 5a match.

The flux tank 2 is made of a material that is resistant to corrosion by the flux solution 8, such as vinyl chloride. Further, within the flux tank 2, a flux absorber 3 such as a sponge is fixed by a holding member 9 having an opening 9a at a position below the liquid level. Therefore, the flux solution 8 passes through the opening 9a of the holding member 9 to the flux absorber 3.
The flux flows into the lower part of the flux absorber 3 and is impregnated throughout the flux absorber 3 by capillary action. Further, a flux application window 11 is provided in a region of the outer circumferential surface of the flux tank 2 that faces the stripped end portion 10a of the coated wire 10.
is provided.

In addition, the flux solution 8 from the flux tank 2
A saucer 4 is provided below the flux tank 2 in order to deal with leakage and the like.

Next, the operation of the flux coating apparatus A configured as described above will be explained. First, prior to flux application, the stop stock 7 is opened by a worker or the like, and the flux solution in the flux supply tank 1 is applied until the liquid level of the flux solution 8 in the flux tank 2 matches the height position of the through hole 5a. 8 is supplied to the flux tank 2. Therefore,
The lower part of the flux absorber 3 is the flux solution 8
After that, the flux solution 8 is diffused throughout the flux absorber 3 from that part, so that the entire flux absorber 3 is impregnated with the flux solution 8. This makes it possible to start the flux application operation.

Next, a wire holding and moving means (not shown) holds the covered wire 10 to which the flux solution 8 is to be applied, and holds the covered wire so that the stripped end 10a is pressed against the flux absorber 3 through the flux application window 11. 10 in the P direction. This results in
A flux solution 8 is applied to the stripped end 10a of the covered wire 10.

Thereafter, when the application of the flux solution 8 is completed, the wire holding and moving means moves the covered wire 10 in the Q direction while holding it.

As described above, the stripped end 1 of the covered wire 10 is
Application of flux solution 8 to 0a is completed.

Note that during the above flux application operation, the flux solution 8 may be consumed or evaporated, causing the flux tank 2 to
When the liquid level of the flux solution 8 in the through hole 5 decreases, the liquid level of the flux solution 8 in the through hole 5 decreases in the same way as above.
A certain amount of flux solution 8 is replenished into the flux tank 2 until the height corresponds to the height of a. Also, when the amount of flux solution 8 in flux supply tank 1 becomes small, close stop stock 7, remove flux supply tank 1 and turn it over, open replenishment lid 12, and replenish flux solution 8 from there. Then install it again as above. In this way, in this embodiment, by providing the stop tank 7, there is no need to worry about the remaining amount of flux solution 8 in the flux supply tank 1.
The flux supply tank 1 can be replenished with the flux solution 8 at an appropriate time, resulting in excellent maintainability. In addition, a lid 12 for refilling
, the flux solution 8 can be smoothly replenished into the flux supply tank 1. Further, as described above, since the flux supply tank 1 is removable, cleaning of the flux supply tank 1 becomes easy, and its maintainability is improved.

As described above, in the first embodiment, since a circulation device for circulating the flux solution 8 is not required, the cost of the flux coating device can be reduced. In addition, a flux absorber 3 such as a sponge
is impregnated with the flux solution 8, the stripped end 10a of the covered wire 10 is pressed against the flux absorber 3, and the flux solution 8 is applied to the stripped end 10a. As a result, the risk of the flux solution 8 scattering around the device is reduced, and corrosion of metal members around the device can be reduced or prevented. Furthermore, since a flux solution circulation device is not required, there is no need to consider corrosion of metal members present on the flux solution circulation path.

Next, an example of use to which the flak coating apparatus A according to this invention is applied will be shown.

Figure 2 shows a flak coating device A according to this invention.
FIG. 2 is a perspective view showing a covered wire soldering device to which the method is applied. As shown in FIG. 2, the covered wire soldering device includes a wire stripper 20 and a first wire holding and moving means 3.
0, flux coating device A, second wire holding and moving means 40, and molten solder liquid flow type soldering device 50.
and a wire rod receiving tray 60. Of these components, the components other than the flak coating device A are conventionally known.

That is, the wire stripper 20 has a wire supply reel 21, a wire supply roller 22, and two opposing
Cutting blade group 23 consisting of a set of core wire cutting blades and coating cutting and stripping blades arranged parallel to each other on both sides of the core wire cutting blades.
and a movable table 24 that clamps the covered electric wire 10 at a rear position of the cutting blade group 23 and moves in the front-back direction.

The first electric wire holding and moving means 30 is composed of a first holding means 31 that can hold the covered electric wire 10 and a first moving means 32 that supports the first holding means 31 so as to be movable in two-dimensional directions (back and forth and left and right directions). has been done.

Since the flux coating device A is the same as described above, its configuration will be omitted here.

The second wire holding and moving means 40 is a second holding means 41 capable of holding the coated wire coated with flux.
and a second moving means 42 that supports the second holding means 41 so as to be movable in the left-right direction.

The molten solder liquid flowing down type soldering device 50 includes a solder tank 51 filled with a solder melt S at a predetermined temperature, an outflow part 52 that allows the solder melt S to flow down from an upper position,
It is comprised of a circulation mechanism 53 for pumping up the solder melt S in the solder tank 51 to the outflow part 52.

Next, the operation of the covered wire soldering apparatus configured as described above will be explained.

(1) First, when an operation start command is given, cutting of the covered electric wire 10 and stripping of the covering are performed as follows. That is, the wire supply roller 2
2 rotates in a predetermined direction, and a predetermined amount of the covered wire 10 wound around the wire supply reel 21 is fed forward. Next, the first electric wire holding and moving means 30 and the moving table 24 each move the covered electric wire 10
After clamping the front and rear sides of the wire, the cutting blade group 23 is moved so that the core wire cutting blade 23a cuts the coated wire 10, and the coating cutting and stripping blade 23b cuts into the coating. This results in
The covered wire 10 is cut at a predetermined position. After that, the first electric wire holding and moving means 30 and the moving table 2
4 move forward and backward, respectively, and the coating is peeled off.

(2) Next, the first holding means 31 holding the coated wire with the stripped end portion formed thereon is moved rightward by the first moving means 32 and stopped at a position facing the flak coating device A. After that, the stripped end of the covered wire is moved backward so as to be pressed against the flux absorber 3. As a result, the flux solution is applied to the stripped end of the covered wire.

(3) Then, the first holding means 31 is moved forward by the first moving means 32, and the coated wire subjected to the above-described process is transferred from the first holding means 31 to the second holding means. Moved to 41.

(4) Further, the second moving means 42 moves the second holding means 41 holding the coated wire whose stripped end portion is coated with flux solution further to the right, and the outflow portion of the soldering device 50 is moved further to the right. It is stopped at the opposite position of 52. As a result, the solder melt S flowing out from the outflow portion 52 is soldered to the stripped end of the covered wire.

(5) Finally, the covered wire that has been subjected to a series of treatments as described above is discharged into the wire receiving tray 60. That is, the second moving means 42 moves the second holding means 41, which holds the coated wire that has undergone a series of treatments, further to the right, and the wire receiving tray 6
After being stopped at the opposite position of 0, the second holding means 4
1 is opened, and the covered wire falls into the wire receiving tray 60 and is discharged.

As described above, the flak coating device A according to the present invention can be used not only as a standalone device, but also can be incorporated into a conventionally well-known covered wire soldering device.

B Second Embodiment FIG. 3 is a sectional view showing another embodiment of the flux coating device according to this invention. As can be easily seen from the comparison between FIG. 1A and FIG. In contrast to the structure in which the covered wire 10 is moved so that the stripped end portion 10a is pressed against the flux absorber 3, in the second embodiment, the covered wire 10 is fixed by wire holding means (not shown). , the entire flux tank 2 is moved in the PQ direction by the flux tank moving means 13, and the flux absorber 3 is pressed against the stripped end portion 10a. Other configurations are the same for both. The flux tank moving means 13 is composed of a guide roller 14 and an air cylinder 15. That is, guide rollers 14 are arranged on the upper and lower surfaces of the flux tank 2, and the flux tank 2 is configured to be able to slide on the guide rollers 14 and move freely in the PQ direction. Also,
One end of the air cylinder 15 is connected to a side position of the flux tank 2, while the other end is fixed, and as the air cylinder 15 expands and contracts, extrusion stress (Q) is applied from the air cylinder 15 to the flux tank 2.
direction) and tensile stress (P direction), respectively.

Next, the operation of the flux coating device B configured as described above will be explained. First, prior to flux application, a state is placed in which the flux application operation can be started in the same manner as in the conventional case.

After the wire holding means (not shown) holds the covered wire 10 to which the flux solution 8 is to be applied, the flux absorber 3 is moved to the flux application window 11.
The flux tank moving means 13 moves the entire flux tank 2 in the Q direction so as to be pressed against the stripped end 10a through the flux tank 2. As a result, the flux solution 8 is applied to the stripped end portion 10a of the covered wire 10.

Thereafter, when the application of the flux solution 8 is completed, the flux tank moving means 13 moves the flux tank 2 while the wire holding means holds the covered wire 10.
Move the whole thing in the P direction.

As described above, the stripped end 1 of the covered wire 10 is
Application of flux solution 8 to 0a is completed.

Therefore, in the second embodiment, the flux tank 2 and the flux absorbing material 3 are moved in the Q direction by the flux tank moving means 13 while being integrated.
A flux solution 8 is applied to the stripped end 10a.

As described above, the stripped end 10a of the covered wire 10
The first and second embodiments are the same, except for a part of the structure and operation for applying the flux solution 8 to the surface. Therefore, the second embodiment is similar to the first embodiment. It has the same effect as. It goes without saying that, as in the first embodiment, the flak coating device B can be used not only as a standalone device, but also can be incorporated into a conventionally well-known covered wire soldering device.

In addition, in the above embodiment, the flux supply tank 1
Although there is no particular limitation on the material, any material may be used as long as it has corrosion resistance to the flux solution 8, and an example thereof is transparent vinyl chloride. In this case, flux supply tank 1
Since the structural material of the tank 1 is transparent, there is an additional advantage that the quantity, quality, etc. of the flux solution 8 in the tank 1 can be easily confirmed.

(Effects of the invention) As described above, according to the flux applicator according to the invention of claim 1, a flux solution is stored in a flux tank, a part of the flux absorbing material is immersed in the flux solution, and a part of the flux absorbing material is immersed in the flux solution. Since the moving means is configured to press the stripped end of the coated wire against the flux absorbing material and apply the flux solution to the stripped end, scattering of the flux solution can be reduced or prevented. Further, since the flux solution is appropriately supplied from the flux supply tank to the flux tank, and the liquid level of the flux solution in the flux tank is kept constant, the flux can be supplied without installing an expensive circulation device. Even if the flux solution in the flux tank decreases due to consumption or evaporation of the flux solution during the coating operation, the flux solution can be automatically supplied. Moreover, since the flux supply tank is detachably attached to the flux tank, when the amount of flux solution in the flux supply tank becomes low, the flux supply tank is removed, the flux solution is replenished, and then the flux is supplied again. By attaching a tank to the flux tank, the flux solution can be replenished. Furthermore, as described above, since the flux supply tank is removable, cleaning of the flux supply tank becomes easy, and its maintainability can be improved.

Further, according to the flux applicator according to the invention of claim 2, a flux solution is stored in the flux tank, a part of the flux absorbing material is immersed in the flux solution, and the covered wire is fixed by the wire holding means. , the flux absorbing material and the flux tank are integrally moved by a moving means, the flux absorbing material is pressed against the stripped end of the covered wire, and the flux solution is applied to the stripped end. It is composed of
Further, a detachable flux supply tank is provided in the flux tank, and the flux solution is supplied to the flux tank so that the liquid level of the flux solution in the flux tank is constant. Therefore, the same effect as above can be obtained.

[Brief explanation of the drawing]

Fig. 1A is a sectional view showing an embodiment of the flux coating device according to this invention, Fig. 1B is a partially enlarged sectional view of the device shown in Fig. 1A, and Fig. 2 is an application to which the flux coating device shown in Fig. 1A is applied. FIG. 3 is a sectional view showing another embodiment of the flux coating device according to this invention. 2... Flux tank, 3... Flux absorber, 8... Flux solution, 10... Covered electric wire,
10a... Stripped end portion, 13... Flux tank moving means 13.

Claims (1)

[Claims for Utility Model Registration] (1) A flux applicator for applying a flux solution to the stripped end of a coated wire, comprising a flux tank for storing the flux solution and a container having a replenishment lid; a flux supply tank that is detachable from the flux tank and supplies the flux solution to the flux tank so that the liquid level of the flux solution in the flux tank is constant; and a flux solution from the flux supply tank to the flux tank. a flux absorbing material, at least a portion of which is immersed in the flux solution in the flux bath; A flux coating device comprising a wire holding and moving means for moving the coated wire so as to press it against a flux absorbing material and applying the flux solution to the stripped end portion. (2) A flux applicator for applying a flux solution to the stripped end of a coated wire, comprising a flux tank for storing the flux solution and a container having a replenishment lid, which can be attached to and detached from the flux tank; a flux supply tank that supplies a flux solution to the flux tank so that the liquid level of the flux solution in the flux tank is constant; and a control means that controls the flow of the flux solution from the flux supply tank to the flux tank. , a flux absorbing material at least partially immersed in the flux solution in the flux tank; a wire holding means for holding the covered wire; and pressing the flux absorbing material against the stripped end of the covered wire. A flux coating device comprising a moving means for integrally moving the flux absorbing material and the flux tank to apply the flux solution to the stripped end portion.