JPS6034238B2 - Covered wire soldering machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Conventionally, a cutting blade has been provided with a set of two opposing core wire cutting blades and a set of two coating cutting/stripping blades arranged parallel to each other on both sides of the cutting blade. The core wire is cut and the coating is cut on both sides of the cutting section by the opening and closing movement of the group, and the coating on both sides of the cutting section is stripped off by the pulling action of movable clamps provided on both sides of the cutting blade group toward the side opposite to the cutting blade group. A wire cutting/stripping device (generally referred to as a wire stripper) is already known.

The cut wire rod whose end coating has been stripped off by the wire stripper described above is then processed by hand or by a separate automatic soldering device to form an appropriate number of wire rods, or solder the end portions one by one. I was doing it. However, in either manual soldering or automatic soldering equipment, the cut wire leaves the wire stripper and lies in a free position, so the tip position of the east-shaped wire must be realigned to keep the soldering allowance constant. No. A common method for aligning the ends of the wire is to place the ends of multiple wires against a patch plate and re-grip them, but in this case the ends of the wire often come apart, and it is difficult to solder them. The finish becomes uneven. If the process using a wire stripper and the soldering process are separated in this way, not only is there a problem with the soldering finish, but also skill is required when doing it by hand, and when using a separate automatic soldering machine. There were various problems such as relatively high equipment costs.

Furthermore, when soldering the ends of scraps using an automatic machine, the cheapest method is to allow the molten solder to flow horizontally, but in this case, the end of the wire is There is a drawback that a bead of excess solder is formed, making it unusable depending on the purpose of use.

In contrast, the above-mentioned drawbacks can be overcome by the downward incursion method disclosed in Japanese Patent Application Laid-open No. 107454/1983, which the present applicant previously filed.

However, the apparatus of the above-mentioned application is an expensive device because the mechanism for transferring the cut wire and dipping the wire into the molten solder bath is complicated. In view of the above-mentioned current situation, the present invention is aimed at soldering only to the edge of the cut line where the coating is stripped off on one side, and employs a relatively inexpensive horizontal transfer method, in order to obtain a product with a good solder finish. By incorporating a wire transfer device between the wire stripper and the soldering device, it is possible to cut the coated wire to a predetermined size, strip the end coating, transfer the cut wire to the soldering device, and remove the coating from the cut wire. It is an object of the present invention to provide a covered wire soldering machine that continuously performs soldering to ends as a series of steps.

Hereinafter, the first invention will be explained in detail based on the embodiments shown in the figures.

For convenience of explanation, the direction of the arrow A and the direction opposite to the arrow EOA in FIG. 1 will be referred to as front and rear, respectively, and the direction of arrow B and the direction opposite to arrow B will be referred to as left and right, respectively. In Fig. 1, numeral 1 is a wire stripper for two wires using a roller feed method, which has the same structure as a conventionally known one, of which 2 is a wire supply reel, 3 is a set of two core wire cutting blades facing each other, and a wire stripper on both sides thereof. A cutting blade group consisting of three sets of two coating cutting and stripping blades arranged in parallel and facing each other, 4 and 5 are front and rear coating stripping clamps arranged on both sides of the cutting blade group 3 and can be opened and closed, respectively. 6
, 7 are equipped with front and rear movable tables, which are attached to guide bases 4' and 5' fixed to the front and upper surfaces of the machine, respectively, with dovetail joints, and moved in the front and rear directions by an appropriate movement mechanism (not shown). It is designed to move back and forth in the opposite direction.

Reference numerals 8 and 8' denote a pair of wire rod feeding rollers which are supported by the rear movable table 5, and a pulse roller connected to one of the feeding rollers 8 via a side length and a motor control mechanism (not shown). A control motor (not shown) can be driven. By driving the pulse control motor, the two wire rods 9 are intermittently lengthened along the feed axis in the direction of arrow A from the two wire rod supply reels 2 in a tandem manner with appropriate intervals. The cutting blade group 3 and clamps 6 and 7 are used to cut and peel the material to a predetermined length.

101 A wire rod transfer means disposed below the wire rod feeding axis ahead of the cutting blade group 3 and the front coating stripping clamp 6,
The base end of the wire gripping and transferring arm 11 is pivoted at the lower front of the machine, and the upper tip is equipped with a wire gripping tool 12 that can be opened and closed. (not shown) for opening and closing operations. Reference numeral 13 denotes a air cylinder for swinging the wire gripping and transferring arm 11 installed in the machine, which is pivotally connected to the tip of a swinging arm 14 whose rod tip is fixed coaxially with the base end of the transferring arm 11, and is in the rod retracted state. The wire gripping odor 1
2 to a predetermined position on the downstream side of the wire supply axis in front of the coating stripping clamp 6, and by swinging the transfer arm 11 to the left by extending the rod, a gripping odor 12 is provided to the soldering device 18, which will be described later. The molten solder liquid is brought to a predetermined position in front of the molten solder liquid outlet portion 210.

Further, the gripping tool 12 grips the cut and stripped wire rods 9', 9' in a column at the downstream position of the feed axis, and also grips the wire rods 9', 9' at the outlet portion 21b and at the forward position.
The transfer arm 11 has a swing angle of approximately 90 degrees so that the transfer arm 11 is released in rows.

Reference numeral 15 denotes a flux applicator installed on the machine stand on the left side of the cutting blade group 3, which injects the flux F sucked from the flux tank 17 downward from the injection pipe 16a toward the flux tank 17 by the constant operation of the circulation pump 16. When the wire rod gripping and transferring arm 11 moves from the downstream position of the feed axis line to the front of the outlet portion 210, the coating on the rear side of the cut wire rods 9', 9' gripped by the wire rod gripper 12 is stripped off. The ends 9'a, 9'a pass through the injection flux castle FA,
It is arranged so that flux F is applied to the part.

Reference numeral 18 denotes a soldering device of the molten solder liquid flowing type installed on the machine stand on the left side of the flux applicator 15;
As shown in the figure, a solder tank 19 is filled with molten solder liquid S, and a solder heating melter 2 with a thermostat is provided at the bottom of the tank.
The melt S is heated and maintained at a predetermined temperature from the river.

Reference numeral 21 denotes an L-shaped guide tube, the horizontal part 21a of which is sunk in the intermediate depth position of the solder tank 19, the vertical part 21b led out above the solder tank 19, and the horizontal part 21a has an upwardly closed opening at the base end. The inlet portion 21a is formed, and the vertical portion 21
b has an outflow port 210 formed at the top.

The outlet portion 21b. forms a bending passage forward at the upper end to open the upper surface, a notch 210 for overflowing the melt S is provided above the rear side plate, and a bending passage bottom plate 21
02 has a rectangular outlet 21b at the front end. 3 is closed, and rectangular flow guide plates 21b and 4 are fixedly installed along the right side green of the flow port 2103 and are oriented slightly downward to the left. (Fig. 3) Reference numeral 22 denotes a rotary blade facing inside the inlet port 21a, which is composed of a pulley 23 fixed to the shaft end led out of the solder tank 19, an endless belt 24 wrapped around the pulley, etc. It is rotated by a motor 25 installed on the outer peripheral surface of the solder bath 19 via an appropriate transmission mechanism.

Due to the rotation of the rotary vane 22, the molten solder liquid S in the solder tank 19 is sucked into the closed opening of the inlet port 21a, and flows into the guide pipe 2.
1 and flows down from the flow ports 21b, 3 to the flow guide plate 2.
The excess melt S flows down in a waterfall shape while being guided by the solder tank 104 , and the excess melt S overflows through the notch 210 and returns to the solder tank 19 . Reference numeral 26 denotes a wire moving means disposed in front of the soldering device 18, and a horizontal mounting base 2 protruding from the front left end of the machine.
7, a sliding body 28 which is iron-mounted on the base 27 with dovetail braces and is slidable in the front-back direction; an arm 29 provided upwardly protruding from the front part of the emotional body 28; A solenoid 60 is fixed to the upper end of the solenoid 29, a gripping pawl 31 is attached to the tip of a rod extending left and right of the solenoid 30 and can be opened and closed rightward by the operation of the solenoid 30, and a rod tip is installed in the machine and extends back and forth. It consists of a air cylinder 32 pivotally connected to the rear surface of the sliding body 28.

Thus, the wire rod moving means 26 has gripping claws 31 that grip the wire rods 9', 9' transferred by the conveying means 1 river in a row at the rear position where the moving body 28 collides with the front wall of the main rock. After a predetermined period of time, the sliding body 28, arm 29, solenoid 30, and gripping claw 31 move integrally toward the forward position by the rod extension action of the air cylinder 32, and in this moving position, the gripping claw 31 opens and peels off the coating. Finished wire rods 9'' and 9'' whose ends have been half-attached are allowed to fall toward a wire rod receiving tray 33 protruding from the lower left side of the machine.

Next, the operation of the embodiment of the above configuration will be explained with reference to the operation explanatory diagrams of FIGS. 4 to 7 and the time chart of FIG. 8.

The starting point of the explanation is time T, (=T,.). At this time, on the wire stripper 1 side, as shown in FIG. The clamp 7, the cutting blade group 3, and the front coating stripping clamp 6 are all in an open state, the rear movable table 5 is in the forward position, and the front movable table 4 is in the rear position.

Further, the wire rod gripping and transferring arm 11 is moved to the downstream side, that is, to the right, of the wire rod feeding axis due to the shortening of the rod of the air cylinder 13, and the wire rod gripping tool 12 is in an open state at that position. Further, the arm 29 in the wire rod moving means 26 is at the rear position due to the shortening of the rod of the air cylinder 32, and the gripping claw 31 provided at the tip of the arm 29 is used for cutting and stripping the wire transferred by the wire gripping and transferring arm 11 in the previous cycle. Grip the finished wire rods 9', 9', and bring the flux-coated rear end sheathing stripped end 9'a of the wire rod 9' toward the melt flow area SA of the outlet 210 of the soldering device 18. There is. Time T,→T2...The wire feeding rollers 8, 8' are rotated by the drive of a pulse control motor (not shown),
The two wire rods 9 are pulled out from the wire rod supply reel 2, fed forward by a predetermined length, and then stopped.

Time T2→T3...The rear coating stripping clamp 7, the cutting blade group 3, and the front coating stripping clamp 6 close to cut the wire 9 to a predetermined size, and at the same time cut the remaining wire 9 and cut on both sides of the cutting position. A cut is made in the coating at the opposite end of the wire 9'.

Also, almost simultaneously with the closing operation of the front and rear coating stripping clamps 6 and 7, the arm 2 is extended by the rod extension operation of the shear cylinder 32.
9 is moved to the front position, and thereby the cutting line village 9', which has been soldered continuously since the previous cycle, moves forward in the direction of the radius line and retreats from the solder flow area SA (FIG. 7).

Time T3→T4...The front and rear movable tables 4 and 6 move forward and backward, respectively, thereby pulling out the cut coatings at the front and rear ends of the remaining wire 9 and the cut wire 9', respectively.

In addition, the wire moving means 26 releases the soldered cut wire 9'' by using the gripping claw 31 by energizing the solenoid 30, and the cut wire 9'' falls and is stored in the wire receiving tray 33.
Time T4→T5...The rear coating stripping clamp 7 and the cutting blade group 3 open.

Further, the wire gripping tool 12 of the wire gripping and transferring arm 11 is closed and grips the cut wire 9'. Further, the arm 29 moves back to the rear position. Time T8→T6... The front coating stripping clamp 6 opens to release the cut wire 9'.

Time T6→T7...The front and rear movable tables 4 and 5 move oppositely and return to their respective rear positions.

Time T7→T8...The wire gripping and transferring arm 11 moves to the left position.

During this moving process, the end 9'a of the sheath stripping device on the rear end side of the cutting wire village 9' held by the wire gripper 12 passes through the flux coating castle FA and is coated with flux F (Fig. 4). ,
Furthermore, when the wire gripping and transferring arm 11 stops at a predetermined left position in front of the soldering device 18 (time T8), the coating peeled end 9'a coated with Phthalax is removed from the soldering device 1.
It is placed at the center of the melt flow region 6A of No. 8 and receives the flow of the molten solder fluid S (FIG. 5). Time T8→T9...The line moving means 26 moves the gripping claw 31 by demagnetizing the solenoid 30.
is moved to close, and the 0-cut wire rod 9' is gripped.

Time T9→T,.

...The wire gripping tool 12 of the wire gripping and transferring arm 11 opens to release the cut wire 9' (FIG. 6). Time T.

→T,. (=T,)...The wire gripping and transferring arm 11 returns to the right position by the ,5 rod shortening operation of the air cylinder 13. By repeating the above process as one cycle, the wire rod 9 is pulled out from the wire rod supply reel 2, the coating on both ends of a predetermined size is stripped off, and only the stripped end of the zero coating on the rear end side is successively soldered. The finished product is sent into the receiving tray 33 according to a specific schedule, and all of this is done fully automatically.

In the above-mentioned embodiment, when the cutting length is relatively long, that is, during the drive stop period of the wire feeding rollers 8 and 8', the wire gripping and transferring arm 11 moves to the left position to move the cut wire 9'. This can be applied when the gripping claw 311 of the means 26 can be transferred and returned to the right position again.

However, if the cutting length is short or the processing process on the wire stripper side can be completed in a short time, then
One soldering device 1 with book wire gripping and transfer arm 11
If only 8 is used, the necessary soldering time may not be enough.
In such a case, it is necessary to provide two sets of wire gripping and transferring arms and two sets of soldering devices, which will be referred to as the second set below.
The invention will be explained based on FIGS. 9 and 10. In FIG. 9, 101 is a wire stripper having the same configuration as the embodiment of the first invention, which is arranged in the center of the machine, 102 in the figure is a wire supply reel, 103 is a group of cutting blades, and 104 and 105 are front and rear, respectively. A moving table, 106 and 107 are front and rear coating stripping clamps, 108 and 108' are a set of two Nukamura feed rollers, and 109 is a wire rod. 21 River wire transfer means, with the front end protruding outward from the lower central front part of the machine, and one front end and one wire rod at the front and rear ends respectively.
A rotating shaft 211 to which the rear arms 211a and 211b are fixed is connected, and a rod tip is pivotally connected to the rear arm 211b, so that the rotating shaft 211 can be rotated approximately 45 degrees about a vertical line by extending and contracting the rod. The air cylinder 212 is pivoted in parallel to the front of the machine in a line horizontally with the rotation shaft 211 with the shaft portion distributed downward on both sides of the wire rod feeding axis, and an arm portion is integrally formed with each arm portion extending upward for an appropriate length.・The right transfer arms 213a, 213b and the intermediate part are connected to the arm 21.
1a, and both ends are connected to the left and right transfer arms 213a.
, 213b, and the respective left and right transfer arms 213.
a, 213b left and right grip odors 215a and 21 provided at the upper end
5b.

Thus, the wire rod transfer means 21 can grip the cut and stripped wire rods 109' and 109' arranged in a column with the arm 213a in the right position and the arm 213b in the left position, and the arm 213a Left position, arm 2
When the soldering device 13b reaches the right position, the soldering device 41, which will be described later,
8a, 418b molten solder liquid flow area S axis, SAb
The wire rods 109', 109' can be released in rows at the center front.

315a and 315b are left and right flux coating devices installed on the machine stand on both the left and right sides of the cutting blade group 103,
Both have the same configuration as the flux applicator in the embodiment of the first invention described above, and the left and right wire gripping tools The trailing end portions 109'a of the cut wire rods 109' and 109' held by the wire rods 215a and 215b are connected to each flux coating device 3150.
It is arranged so as to pass through the injection flux castle F side and F ground of a and 315b.

418a and 418b are left and right soldering devices installed on the machine stand on the left and right sides of the left and right flux applicators 315a and 315b, respectively, and have the same configuration as the soldering device 18 in the embodiment of the first invention described above. When the left and right transfer arms 213a and 213b are placed in the left and right positions, respectively, the flux coated cut wire 109' held by the left and right wire grippers 215a and 215b is The rear coating peeled end 109'a is arranged so as to face the center of the soldering devices 418a and 418b, on the S side and SAb side of the soldering device 418b.

526a and 526b are the left and right soldering devices 4, respectively.
In front of 18a and 418b, the left
The right wire rod moving means has the same structure as the wire rod moving means 26 in the first embodiment of the invention described above, but each gripping claw 527a, 527b is arranged so as to be openable and closable facing rightward and leftward, respectively. .

Then, the wire rod moving means 526a, 526b receives the cut wire rod 109' from the cutting arms 213a, 213b when the left and right transfer arms 213a, 213b reach the left and right positions, and the wire rods 109' are transferred to each other for a predetermined soldering period. The cut wire 109 moves rearward and forward (in the axial direction of the cut wire 109').
After soldering, the coating peeled off end 109'a of 109'a is separated from the molten liquid flow area S side and SAb. 633
a and 633b are the left and right soldering devices 418a, respectively.
, 418b are the left and right receiving trays for soldered cut wire rods 109'' provided on the front of the machine base.

FIG. 10 is a time chart of the covered wire soldering machine according to the embodiment of the second invention having the above-mentioned configuration, and although a detailed explanation of the operation will be omitted here, FIG. 9 shows the time T shown in FIG. FIG.

In both of the above-mentioned embodiments, two wire rods were cut, coated and soldered at the same time, but it goes without saying that processing for one wire can be carried out even more easily.

As detailed above, when the machine of the present invention is used, a wire rod transfer means is provided for transferring the wire rod to one or both sides in the perpendicular direction from the downstream side of the wire rod feeding direction of the known wire stripper, and the wire rod transfer means is used to transfer the wire rod. By installing a flux applicator and a soldering device in the route, the process from cutting the coated wire to a predetermined size to soldering to the stripped end of the cut wire can be done automatically and continuously in a series of steps. Furthermore, the soldered end of the soldered sheath is evacuated in the axial direction from the molten liquid flow area by the wire moving means, and the sheath stripper section can perform uniform and beautiful soldering without leaving any solder balls. In addition, the cost can be reduced compared to the downward dipping method.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of an embodiment of the first invention, Fig. 2 is a sectional view of a soldering device, Fig. 3 is an enlarged detailed view of the x section in Fig. 2, and Figs. 4 to 7 are an embodiment of the first invention. FIG. 8 is a time chart in the first embodiment of the invention, FIG.
FIG. 10 is an overall perspective view and a time chart in the embodiment of the second invention, respectively. In the figure, 1 is a wire stripper, 3 is a cutting blade group, 4 is a front moving table, 5 is a rear moving table, 6 is a front coating stripping clamp, 7 is a rear coating stripping clamp, 8 and 8' are wire feeding Laura, 9'
10' indicates a cutting line, 10' indicates a wire transfer means, 15 indicates a flux coating device, 18 indicates a soldering device, and 26 indicates a wire transfer means. Figure O 2 Figure O 3 Figure Next 4 Figure O 5 Figure power 7 6 Figure age 7 Figure O 8 Figure 9 Figure O ○ Figure

Claims (1)

[Scope of Claims] 1. A wire cutting/stripping device, and a wire rod from which the end coating has been stripped, processed by the device, is held on the downstream side of the wire rod feeding axis of the device by swinging a pair of gripping tools. A wire transfer means that can be transferred in one direction perpendicular to the position, a flux distribution device and a soldering device disposed in the middle of wire transfer and near the end of the wire transfer, respectively, and a flux distribution device and a soldering device provided near the soldering device, respectively. The soldering device comprises a wire rod moving means by reciprocating a pair of gripping claws, and the soldering device has a pump mechanism as appropriate to cause the molten solder liquid to flow down from the flow opening, and the wire rod transferred by the wire rod transfer means. When the sheathing stripped end of the wire reaches just below the flow opening, the wire is delivered to the wire rod moving means, and after the sheathing stripped end is exposed to the melt flow area for a predetermined period of time, the wire rod moving means A covered wire soldering machine characterized in that the wire is moved backward a predetermined distance toward the side opposite to the soldering device in the axial direction of the wire by means of the axial direction of the wire. 2. The wire transfer means includes an arm that is equipped with a wire gripper that can be opened and closed at the tip and is swingable in a vertical plane perpendicular to the wire feeding axis with the base end as a fulcrum, and the swinging movement of the arm is 2. The covered wire soldering machine according to claim 1, wherein the wire gripping tool is movable between a wire rod feeding downstream position and a predetermined position in front of the outlet. 3. The covered wire soldering machine according to claim 2, wherein the arm of the wire rod transfer means swings approximately 90 degrees. 4. The wire rod moving means includes a sliding body that reciprocates on the base parallel to the wire rod feeding axis by appropriate operation of an air cylinder, an arm having a lower end fixed to the sliding body and extending upward, and the arm. The covered wire solder according to claim 1, comprising a solenoid attached to the upper end and a pair of gripping claws attached to the tip of the rod of the solenoid and opened and closed by the operation of the solenoid. Attached machine. 5. A wire cutting/stripping device and a wire rod from which the end coating has been stripped, which has been processed by the device, is cut at a right angle 2 from the downstream position of the wire rod feeding axis of the device by swinging one pair of two sets of gripping tools. a wire rod transfer means that can alternately transfer the wire rod in the two directions; a flux coating device and a soldering device disposed in the middle of the wire rod transfer means in each of the two directions and near the end of the transfer;
wire rod moving means for regulating the soldering period provided near each of the soldering devices, each of the soldering devices being configured to cause the molten solder liquid to flow down from a flow port by an appropriate pump mechanism, and the wire rod transporting means When the peeled end of the wire rod transported by the wire rod reaches the position directly below the flow opening, the wire rod is delivered to each of the wire rod moving means, and the peeled end portion of the wire rod is temporarily placed in the melt flow area for a predetermined period of time. A covered wire soldering machine characterized in that, after tightening, the wire is moved backward by a predetermined distance toward the side opposite to the soldering device in the wire axial direction by the wire moving means. 6. The wire rod transfer means is capable of swinging integrally within a vertical plane perpendicular to the wire rod feeding axis, with pivot points located on opposite sides of the wire rod feeding axis from below;
Each arm is equipped with a wire gripper that can be opened and closed at its tip, and when the wire gripper of one arm is stopped at the downstream position of the wire feeding axis, the wire gripper of the other arm is connected to the wire gripper of the other arm. A covered wire soldering machine according to claim 5, wherein the machine stops at a predetermined position in front of a downstream opening of a corresponding soldering device. 7. The covered wire soldering machine according to claim 6, wherein the arm of the wire rod transfer means swings approximately 90 degrees. 8. The wire rod moving means includes a sliding body that reciprocates on a base parallel to the wire rod feeding axis as appropriate by the operation of an air cylinder, and an upwardly extending arm having a lower end fixed to the sliding body. The covering according to claim 5, comprising a solenoid attached to the upper end of the arm, and a pair of gripping claws attached to the tip of the rod of the solenoid so that it can be opened and closed by the operation of the solenoid. wire soldering machine.