KR20150011186A - Apparatus for supplying solering wire - Google Patents

Apparatus for supplying solering wire Download PDF

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Publication number
KR20150011186A
KR20150011186A KR1020130086144A KR20130086144A KR20150011186A KR 20150011186 A KR20150011186 A KR 20150011186A KR 1020130086144 A KR1020130086144 A KR 1020130086144A KR 20130086144 A KR20130086144 A KR 20130086144A KR 20150011186 A KR20150011186 A KR 20150011186A
Authority
KR
South Korea
Prior art keywords
roller
wire
soldering wire
drive
soldering
Prior art date
Application number
KR1020130086144A
Other languages
Korean (ko)
Inventor
한장식
안민영
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020130086144A priority Critical patent/KR20150011186A/en
Publication of KR20150011186A publication Critical patent/KR20150011186A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/06—Solder feeding devices; Solder melting pans
    • B23K3/0607—Solder feeding devices
    • B23K3/063—Solder feeding devices for wire feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/06—Solder feeding devices; Solder melting pans
    • B23K3/0646—Solder baths
    • B23K3/0692—Solder baths with intermediary means for bringing solder on workpiece, e.g. rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08—Auxiliary devices therefor

Abstract

According to an embodiment of the present invention, a soldering wire feeding machine comprises: a soldering wire; a transfer mechanism provided to transfer the soldering wire; and a disconnection sensing unit which senses the disconnection of the soldering wire. The transfer mechanism includes: a drive roller; a drive motor which rotates the drive roller; and an idle roller formed on the opposite side of the drive roller. The soldering wire passes the gap between the drive roller and the idle roller. The disconnection sensing unit includes: a scale part formed on the top surface of the idle roller and rotated together with the idle roller; and a photo sensor arranged on the top of the scale part sensing the rotational state of the idle roller by sensing the scale part.

Description

[0001] Apparatus for supplying solering wire [0002]

The present invention relates to a soldering wire feeder.

In recent years, as the number of production processes using fine parts is increasing, the diameter of the windings or wires used in the production of the products is decreasing. In particular, devices for supplying soldering wires used for soldering can be said to be stable for supplying large-diameter wires, but there are many problems in supplying thin wires of several hundreds of micrometers.

Japanese Unexamined Patent Application Publication No. 11-309568 discloses an apparatus for detecting the breakage of a wire in a soldering wire feeder. In this conventional structure, a soldering wire is interposed between a pair of supply rollers composed of a drive roller and an idle roller, and when the drive roller rotates, the wire is supplied by the friction between the roller surface and the wire. In addition, a sensing means for sensing wire breakage is provided in front of the pair of supply rollers. The sensing means causes the rotating disk to rotate together when the axis of the rotating disk contacts the surface of the soldering wire to transfer the soldering wire. An encoder for sensing the rotation amount of the rotary disk is provided. According to this structure, if the rotation of the rotating disk is not sensed by the encoder for detecting the rotation of the rotating disk, the rotation of the driving roller is stopped by determining that the soldering wire is broken.

In the case of such a conventional soldering wire breakage detection structure, there is a disadvantage that fundamentally the breakage of the wire itself can not be prevented. In addition, since an expensive encoder must be used, the manufacturing cost is increased.

Further, since another roller structure is provided in front of the supply roller, the wire may not be smoothly supplied between the supply roller and the wire breakage detecting means, and as a result, the wire may be bent or bundled may be defective. Further, when such a feed failure occurs, it may not be detected.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a soldering wire feeding device capable of preventing breakage of a wire in advance.

It is also an object of the present invention to provide a soldering wire feeding device that stops a wire feeding operation at a point of time when a wire break is detected earlier than a conventional product.

It is also an object of the present invention to provide a soldering wire feeding device capable of preventing defective supply of wires by providing a means for preventing defective supply of wires to the soldering wire supplying device.

According to an aspect of the present invention, there is provided a soldering wire supplying apparatus including: a soldering wire; a feed mechanism provided for feeding the soldering wire; And a solder wire feeding means for detecting a break of the soldering wire, wherein the feed mechanism comprises: a drive roller; A driving motor for rotating the driving roller; Wherein the idler roller is provided on an upper surface of the idler roller so that the idler roller and the idler roller are in contact with the idler roller, And a photosensor which is disposed on the scale unit and senses the scale unit to sense the rotation state of the idler roller.

According to the soldering wire supplying apparatus of the present invention, since the wire breakage detecting means is integrally provided in the wire supplying roller assembly, the breakage of the wire is immediately detected and the supply of the wire is stopped There are advantages to be able to.

In contrast to the conventional structure in which another roller means for detecting wire breakage is provided in contact with the wire, the present invention does not require additional wire breakage detecting means to be additionally disposed on the wire, Is reduced.

Further, since the guide tube is provided at the front and rear of the wire breakage detecting means, it is possible to prevent deformation of the wire, which may occur during the supply of the wire.

In addition, since the tube at the rear end of the wire feeding device is connected at the free end and the buffering means including the spring is provided, if the wire can not advance, the tube is freely pushed in a direction orthogonal to the wire feeding direction, The wire is returned to its original position, thereby preventing defective supply of the wire.

In addition, as a means for detecting breakage of a wire, the manufacturing cost of the wire feeding apparatus is reduced by adopting a photosensor which is relatively inexpensive.

1 is a perspective view of a soldering wire feeder according to an embodiment of the present invention;
2 is a perspective view showing the internal structure of the soldering wire feeder.
3 is a schematic view showing an operating state of the soldering wire supplying apparatus.

Hereinafter, the structure and operation of a soldering wire supplying apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

A soldering wire supplying apparatus according to an embodiment of the present invention includes: a soldering wire; a transfer mechanism provided for transferring the soldering wire; And a solder wire feeding means for detecting a break of the soldering wire, wherein the feed mechanism comprises: a drive roller; A driving motor for rotating the driving roller; Wherein the idler roller is provided on an upper surface of the idler roller so that the idler roller and the idler roller are in contact with the idler roller, And a photosensor which is disposed on the scale unit and senses the scale unit to sense the rotation state of the idler roller.

Further, the soldering wire supplying apparatus according to the embodiment of the present invention further includes a drive box on which the drive roller and the idle roller are mounted, and which receives the drive motor.

The soldering wire supplying apparatus according to the embodiment of the present invention may further include a support supporting the idler roller and being rotatably provided on an upper surface of the drive box with one end portion as a center, And a tension adjuster for adjusting the magnitude of the frictional force generated between the rollers.

The tension adjusting unit may include a spring having one end connected to the other end of the support and the other end fixed to the drive box.

In addition, the soldering wire supplying apparatus according to the embodiment of the present invention further includes a box cover covering the upper surface of the drive box, and the photo sensor is mounted on the bottom surface of the box cover.

Further, a soldering wire supplying apparatus according to an embodiment of the present invention includes a transfer tube for guiding the transfer of the soldering wire through the drive roller, the transfer tube having an inlet end forming a free end, A solder nozzle, and a buffer member provided at an inlet end of the transfer tube.

The buffer member also includes a spring connected to the inlet end of the transfer tube and through which the soldering wire passes.

The soldering wire supplying apparatus according to an embodiment of the present invention may further include an upper guide tube for allowing the soldering wire leading to the driving roller to pass therethrough to prevent warping of the soldering wire, And a lower guide tube for preventing the soldering wire from being warped.

FIG. 1 is a perspective view of a soldering wire supplying apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view showing an internal structure of the soldering wire supplying apparatus, FIG. 3 is a drawing schematically showing an operating state of the soldering wire supplying apparatus to be.

1 to 3, a soldering wire supplying apparatus 10 according to an embodiment of the present invention includes a spool 12 wound with a soldering wire 121, a spool 12 provided below the spool 12, (Not shown) for transferring the soldering wire 121 to the welded portion, a drive box 11 on which the transfer mechanism is mounted, and a transfer mechanism 11, which is detachably coupled to the upper surface of the drive box 11, And a transfer tube 13 for guiding the transfer of the soldering wire 121 that escapes to the lower side of the drive box 11 and a transfer tube 13 which is provided at the lower end of the transfer tube 13, And a solder nozzle 14.

In detail, a photo sensor 15 is provided on the inner surface of the box cover 111, and the operation of the porter sensor 15 will be described in detail below.

The transfer mechanism may include wire transfer means provided on the upper surface of the drive box 12 and wire break detection means for detecting a break of the soldering wire 121 transferred by the wire transfer means, And a cushioning member 22 for preventing defective conveyance of the soldering wire guided to the conveying tube 13 by the conveying tube 13.

Specifically, the wire conveying means includes a driving roller 16 connected to a rotation axis of a driving motor (not shown) mounted inside the driving box 12, and an idler roller 16 provided on the opposite side of the driving roller 16, A support base 18 on which the idle roller 17 is placed and a support base 18 on which the support base 18 is rotated in a direction away from the drive roller 16 or in a direction approaching the drive roller 16 And a tension adjusting member 19.

More specifically, the soldering wire 121 passes between the drive roller 16 and the idle roller 17 and is in contact with the side surface of the drive roller 16 and the side surface of the idle roller 17 Lt; / RTI > The soldering wire 121 is guided toward the transfer tube 13 by a frictional force generated on the contact surface of the drive roller 16. The idle roller 17 is rotated by the frictional force generated on the contact surface with the soldering wire 121. Therefore, the idle roller 17 is not provided with a separate driving member, and the soldering wire 121 is rotated by the transfer. Therefore, when an appropriate frictional force is generated between the driving roller 16 and the soldering wire 121 and the idle roller 17, the conveying length of the wire and the driving roller 16 and the idle roller 17, The moving distance in the circumferential direction becomes equal to the angular velocity of the rotor.

If the frictional force generated between the drive roller 16 and the soldering wire 121 does not reach the preset value, a slip phenomenon occurs between the drive roller 16 and the soldering wire 121, The circumferential movement distance of the soldering wire 121 may be less than the transfer length of the soldering wire 121. This applies equally to the case between the idle roller 17 and the soldering wire 121.

On the contrary, if the excessive frictional force exceeds the set value, the soldering wire 121 may be broken. As described above, the tension adjusting member 19 adjusts an appropriate frictional force between the driving roller 16 and the soldering wire 121 and between the idler roller 17 and the soldering wire 121. The tension adjusting member 19 may be an elastic member such as a spring.

One end of the support 18 supporting the idler roller 17 may be rotatably connected to the upper surface of the drive box 12 by a support shaft. One end of the tension adjusting member 19 is connected to the other end of the support 18 and the other end of the tension adjusting member 19 is movably connected to the upper surface of the drive box 12.

The movement direction of the other end of the tension adjusting member 19 may be a direction crossing the feeding direction of the soldering wire 121, that is, a direction orthogonal to the feeding direction of the soldering wire 121. That is, the other end of the tension adjusting member 19 may be moved so that the support base 18 is rotated in a direction approaching the drive roller 16 or in a direction away from the drive roller 16.

For example, when the support 18 rotates in a direction approaching the drive roller 16, the frictional force generated between the drive roller 16 and the soldering wire 121 increases, and the support 18 The friction between the driving roller 16 and the soldering wire 121 may be reduced when the driving roller 16 is rotated in a direction away from the driving roller 16. [

The disconnection sensing means includes a scale portion 171 formed in the circumferential direction on the upper surface of the idler roller 17 and the photosensor 15 mounted on the inner surface of the box cover 121 . When the box cover 121 is coupled to the driving box 12, the photosensor 15 is located in a position directly above the scale unit 171. Accordingly, as the idle roller 17 rotates, the photosensor 15 senses the scale 171. When the number of the graduations 171 sensed per unit time is calculated, the rotational speed of the idle roller 17 can be known. When the rotational speed of the idler roller 17 is compared with the rotational speed of the driving roller 16, it is possible to know whether the soldering wire 121 is slipped or broken.

More specifically, when it is determined that the rotational speed of the idler roller 17 does not reach the set speed as a result of comparing the rotational speed of the drive roller 16 and the rotational speed of the idler roller 17, The frictional force generated between the contact surfaces with the wire 121 is small, which means that the wire is slipping. Accordingly, in this case, the other end of the tension adjusting member 19 can be moved to increase the frictional force between the wire and the roller. Here, a method of adjusting the tension of the tension adjusting member 19 may be other than a method of moving the other end of the tension adjusting member 19. It should also be noted that other means of performing the tension adjustment function are also applicable. The spring member shown in the embodiment of the present invention is only one embodiment presented to explain the function of the tension adjusting means applied to the embodiment of the present invention.

On the other hand, when excessive friction occurs between the rollers 16 and 17 and the soldering wire 121, the soldering wire 121 may be broken. Since the soldering wire 121 is a very thin wire made of lead, even if a small force acts, the soldering wire 121 tends to be broken. The reason why the soldering wire 121 is broken is as follows.

First, there is a case where the rotation amount of the spool 12, that is, the speed with respect to the supply amount to supply and release the soldering wire can not keep up with the speed with respect to the wire transfer amount which is operated by the rotation of the driving roller 16. That is, if the driving roller 16 is rotated and the soldering wire 121 is continuously pulled in a state where the spool 12 can not rotate smoothly for some reason, the soldering wire 121 can not withstand It can be broken.

Secondly, if the spacing space between the driving roller 16 and the idle roller 17, that is, the space through which the soldering wire 121 passes is excessively small as compared with the diameter of the soldering wire 121, (121) is stretched in the process of being fed, and eventually it is cut off.

 Meanwhile, when the soldering wire 121 is broken during the feeding of the soldering wire 121, the idler roller 17 does not rotate even if the driving roller 16 continues to rotate. Thus, the driving roller 16 continues to rotate, but if there is no signal from the photosensor 15, it can be controlled to determine that the soldering wire 121 is broken. The disconnection of the soldering wire 121 means that the disconnection of the soldering wire 121 occurs at a point before the point where the drive roller 16 and the idler roller 17 are disposed. It is detected immediately after passing.

The drive roller 16 and the idler roller 17 continue to rotate and the photosensor 15 is rotated by the rotation of the idler roller 17 even though no wire is supplied to the solder nozzle 14, It is judged that wire breakage has occurred at a point after the point where the drive roller 16 and the idle roller 17 are disposed.

In addition, in the case where the wire is not supplied toward the solder nozzle 14, and the wire detecting means does not detect the rotation of the idler roller 17, it is determined that there is no wire, and the replacement of the spool 12 So that a signal can be generated.

The scales 171 constituting the disconnection detecting means are provided on the upper surface of the idle roller 17 as one body with the idle roller 17. Therefore, compared with the conventional wire feeding apparatus in which a separate rotating disk is provided at the outlet side of the feeding mechanism, the following advantages are obtained.

First, since the number of members contacting the soldering wire 121 is reduced, there is an advantage that the cause of deforming or breaking of the soldering wire is reduced.

Secondly, there is no need to provide a separate rotating disk, which simplifies the structure of the soldering wire feeder and reduces manufacturing costs.

 The upper guide pipe 20 and the lower guide pipe 21 are provided before and after the point where the driving roller 16 and the idle roller 17 are disposed, Passes through the upper guide tube (20) and then passes through the driving roller (16). The wire that has passed through the driving roller 16 passes through the lower guide tube 21 and then enters the feeding tube 13.

In detail, by providing the upper guide tube 20 and the lower guide tube 21, it is possible to prevent the soldering wire 121 from being bent before and after the drive roller. Specifically, when the soldering wire 121 is bent before passing through the driving roller 16, the wire passes through the driving roller 16 and passes through the driving roller 16 in a chewed or folded state, A problem that can not be achieved can occur.

Also, if the soldering wire 121 is bent after passing through the driving roller 16, it can not be safely drawn into the conveying tube 13, and may be bent at the inlet of the conveying tube 13 to cause a conveyance failure.

The provision of the upper guide tube 20 and the lower guide tube 21 prevents the feeding defects or disconnection due to warping of the wire at the forward and backward points with respect to the driving roller 16. [

A cushioning member 22 including a spring is coupled to the upper end of the conveying tube 13 and the conveying tube 13 is free from the driving box 11. 3 (A) and (B), that is, when the soldering wire 14 is in contact with the soldering nozzle 14 in the direction of the soldering wire 14, And is pushed freely in a direction intersecting with the feeding direction of the wire 121 to be bent. When the wire is normally supplied, the feeding tube 13 returns to its original position, thereby performing a function of preventing the feeding failure of the wire.

Claims (8)

A soldering wire; a transfer mechanism provided for transferring the soldering wire; And a wire detecting means for detecting a break of the soldering wire,
Wherein the transfer mechanism comprises:
Drive roller;
A driving motor for rotating the driving roller;
And an idle roller provided on the opposite side of the drive roller,
The soldering wire passing between the drive roller and the idle roller,
Wherein the disconnection detecting means comprises:
A graduation provided on an upper surface of the idler roller and rotating with the idler roller,
And a photosensor disposed above the scale unit and sensing a rotation state of the idle roller by sensing the scale unit. The method according to claim 1,
Further comprising a drive box on which the drive roller and the idle roller are seated and which receives the drive motor. 3. The method of claim 2,
A support table for supporting the idler roller and rotatably provided on an upper surface of the drive box,
And a tension adjuster for adjusting the magnitude of the frictional force generated between the soldering wire and the rollers by rotating the supporter. The method of claim 3,
Preferably,
And a spring having one end connected to the other end of the support and the other end fixed to the drive box. 3. The method of claim 2,
Further comprising a box cover covering an upper surface of the drive box,
Wherein the photo sensor is mounted on a bottom surface of the box cover. The method according to claim 1,
A transfer tube for guiding the transfer of the soldering wire passed through the drive roller and having an inlet end forming a free end,
A solder nozzle provided at an outlet end of the transfer tube, and
And a buffer member provided at an inlet end of the transfer tube. The method according to claim 6,
The cushioning member,
And a spring connected to an inlet end of the transfer tube and including a spring through which the soldering wire passes. The method according to claim 1,
An upper guide tube for allowing the soldering wire leading to the driving roller to pass therethrough to prevent warping of the soldering wire,
And a lower guide tube for allowing the soldering wire passing through the drive roller to pass therethrough to prevent warping of the soldering wire.

KR1020130086144A 2013-07-22 2013-07-22 Apparatus for supplying solering wire KR20150011186A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033397A (en) * 2015-08-17 2015-11-11 武汉锐泽科技发展有限公司 Tin conveying mechanism and floating machine
CN105750679A (en) * 2016-04-26 2016-07-13 东莞市联洲知识产权运营管理有限公司 Automatic wire feeding jig on robot welding device
CN105772894A (en) * 2016-04-26 2016-07-20 东莞市联洲知识产权运营管理有限公司 Automatic wire feeding device on mechanical welding arm
KR102106641B1 (en) * 2018-11-16 2020-05-12 주식회사 로봇밸리 push-pull supplying type torch system for welding
DE102019000281A1 (en) * 2019-02-18 2020-08-20 Alpha Laser Gmbh Device for feeding a filler material for thermal spraying, soldering or welding
KR20210004627A (en) * 2019-07-05 2021-01-13 주식회사 티앤아이텍 Soldering wire feeder
WO2021141167A1 (en) * 2020-01-10 2021-07-15 주식회사 로봇밸리 Push-pull feed-type torch system
CN117444344A (en) * 2023-12-22 2024-01-26 惠州市炬能量电子科技有限公司 Full-automatic feeding structure for bonding wires of LED devices
CN117444344B (en) * 2023-12-22 2024-04-26 惠州市炬能量电子科技有限公司 Full-automatic feeding structure for bonding wires of LED devices

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033397A (en) * 2015-08-17 2015-11-11 武汉锐泽科技发展有限公司 Tin conveying mechanism and floating machine
CN105750679A (en) * 2016-04-26 2016-07-13 东莞市联洲知识产权运营管理有限公司 Automatic wire feeding jig on robot welding device
CN105772894A (en) * 2016-04-26 2016-07-20 东莞市联洲知识产权运营管理有限公司 Automatic wire feeding device on mechanical welding arm
KR102106641B1 (en) * 2018-11-16 2020-05-12 주식회사 로봇밸리 push-pull supplying type torch system for welding
DE102019000281A1 (en) * 2019-02-18 2020-08-20 Alpha Laser Gmbh Device for feeding a filler material for thermal spraying, soldering or welding
KR20210004627A (en) * 2019-07-05 2021-01-13 주식회사 티앤아이텍 Soldering wire feeder
WO2021141167A1 (en) * 2020-01-10 2021-07-15 주식회사 로봇밸리 Push-pull feed-type torch system
CN117444344A (en) * 2023-12-22 2024-01-26 惠州市炬能量电子科技有限公司 Full-automatic feeding structure for bonding wires of LED devices
CN117444344B (en) * 2023-12-22 2024-04-26 惠州市炬能量电子科技有限公司 Full-automatic feeding structure for bonding wires of LED devices

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