JP6243873B2 - Continuous terminal manufacturing equipment - Google Patents

Description

  The present invention is a continuous terminal manufacturing apparatus in which a large number of crimp terminals and connector terminals to be attached to the end of an electric wire are connected in a straight line, and after continuously forming and inspecting a tape-shaped metal material, The present invention relates to a continuous terminal manufacturing apparatus that is wound around a roll.

  For example, when a terminal is continuously crimped to the ends of a large number of electric wires, a continuous terminal in which a large number of crimped terminals are linearly connected is used. Such a continuous terminal is usually provided to a manufacturer of a terminal-attached electric wire in a form wound on a roll. And in manufacture of the electric wire with a terminal, it is made to supply to a terminal crimping apparatus continuously, paying out a continuous terminal from a roll sequentially.

  For example, as shown in Patent Document 1, such a continuous terminal is manufactured by feeding a tape-shaped copper strip from a roll to a molding apparatus such as a press machine, continuously molding the terminal, After inspecting with an inspection machine equipped with a camera or the like, it is carried out by winding it on a take-up roll with an interlayer paper interposed therebetween.

  FIG. 6 is a diagram illustrating an example of a conventional continuous terminal manufacturing apparatus. The copper strip CS wound around the unwinding roll 21 is supplied to the press machine 22 while being fed out. In the press machine 22, the copper strip CS is intermittently conveyed in accordance with the timing of the press processing, and subjected to press processing such as punching or bending, so that the continuous terminal T is formed.

  The continuous terminal T subjected to press working by the press machine 22 is sent to the welding machine 23, where the butt interface is joined by laser welding, and then the state of the terminal is inspected by the inspection machine 24. In the inspection machine 24, the terminal is photographed by an imaging means such as a CCD camera, and it is determined whether or not it is within an allowable range as compared with the reference data. The inspection result is displayed on the display unit.

  The continuous terminal T that has passed through the inspection machine 24 is wound around the winding roll 25 with an interlayer paper (not shown) interposed therebetween. In addition, between the press machine 22 and the welding machine 23, and between the welding machine 23 and the inspection machine 24, a constant slack is given to the continuous terminal T, and the difference in the conveyance timing of intermittent conveyance and continuous conveyance is absorbed. Like to do.

  In this way, the continuous terminal can be efficiently manufactured, and if a defective product is generated in the manufacturing process, it can be displayed and a necessary treatment can be promoted.

JP 2014-187047 A

  However, the conventional continuous terminal manufacturing apparatus has a problem in that when a defective part is detected by the inspection machine 24, it is necessary to stop the manufacturing line and manually remove the defective part, which is very troublesome. there were.

In addition, normally, in a press machine in a continuous terminal manufacturing apparatus, processing oil is applied to the metal strip in advance so that the metal strip, which is a workpiece, is not damaged by friction when performing the press processing. When the machine oil is inspected, if the processing oil adheres to the continuous terminal after processing, it is determined that the product is defective although it is not originally defective. If a portion determined to be defective although it is not originally defective is removed, not only the work efficiency is deteriorated but also the material is wasted. For this reason, some of the processing oil attached to the processed continuous terminal is blown off by air blowing before inspecting with an inspection machine.

  However, it has often occurred that the processing oil remains on the continuous terminals without being blown away by air blow, and the inspection machine determines a defect. In order to prevent this, once a defect is determined by an inspection machine, it is conceivable to perform an inspection again by blowing air again.

  However, in order to re-inspect with the inspection machine, it is necessary to pull the continuous terminal that has passed through the inspection machine in the direction opposite to the normal transport direction and return it until the point judged to be defective comes before the inspection machine. In order to do so, the continuous terminal wound around the winding roll must be rewound. However, the continuous terminal taken up by the take-up roll is taken up while applying a certain tension to the inter-layer paper interposed between the layers so as not to cause winding deviation, and is taken up by the take-up roll. When the continuous terminal is rewound, there arises a problem that the tension becomes loose and the winding is liable to occur.

  In view of such a problem, an object of the present invention is to enable reinspection without rewinding a continuous terminal wound around a winding roll. It is another object of the present invention to automatically remove a defective part when a defect is detected as a result of re-inspection.

  In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is to form a continuous terminal by molding a tape-shaped metal material continuously fed from an unwinding roll with a press machine, and inspect the created continuous terminal. A continuous terminal manufacturing apparatus that is wound around a winding roll after inspecting the molding state of the terminal through a machine, wherein the inspection machine is mounted on the base that is movable in the conveying direction of the continuous terminal, When an imaging device for taking an image for quality determination of the continuous terminal is provided and a failure is determined, the conveyance of the continuous terminal is stopped and the base is moved by a predetermined distance in the conveyance direction. The continuous terminal is re-inspected while being moved in a direction opposite to the conveying direction.

  Further, the invention according to claim 2 of the present application is the invention according to claim 1, wherein a continuous terminal holder is provided before and after the transport direction of the inspection machine, and a defect is determined by the inspection machine, so that The continuous terminal is held by the continuous terminal holder so that the continuous terminal does not move when the conveyance is stopped.

  Further, the invention according to claim 3 of the present application is the invention according to claim 1 or 2, wherein a cutter for cutting a continuous terminal by a certain length is provided at a rear portion in the transport direction of the inspection machine, and the inspection machine and the cutter A feed roller that can feed a continuous terminal in the conveying direction is provided between the two, and when a defect is determined by re-inspection by an inspection machine, the defective portion is cut and removed by the cutter, and the cut portion The continuous terminal remaining on the inspection machine side is further fed to the winding roll by the feed roller.

The present invention has the following effects.
That is, in the invention according to claim 1, the inspection machine is provided with an imaging device for taking an image for determining the quality of the continuous terminal on the base that is movable in the conveying direction of the continuous terminal, and the defect is determined. At this time, the conveyance of the continuous terminals was stopped, the base was moved by a predetermined distance in the conveyance direction, and then the continuous terminals were reinspected while being moved in the direction opposite to the conveyance direction. As a result, re-inspection can be performed without rewinding the continuous terminal wound on the winding roll.

  Moreover, in the invention concerning Claim 2, in the continuous terminal manufacturing apparatus concerning Claim 1, a continuous terminal holder is provided before and after the continuous terminal conveyance direction of the inspection machine, and the determination of a defect is made by the inspection machine, and When the conveyance is stopped, the continuous terminal is held by the continuous terminal holder so that the continuous terminal does not move. As a result, reinspection can be performed while the continuous terminal is stationary, and inspection with higher accuracy can be performed.

  Moreover, in the invention concerning Claim 3, in the continuous terminal manufacturing apparatus concerning Claim 1 or 2, the cutter which cuts a continuous terminal only by fixed length is provided in the continuous terminal continuous terminal conveyance direction rear part of an inspection machine, and inspection. A feed roller that can feed continuous terminals in the transport direction is provided between the machine and the cutter. When a defect is judged by re-inspection by the inspection machine, the defective part is cut and removed by the cutter. The continuous terminal remaining on the inspection machine side from the formed part was sent to the take-up roll by the feed roller. As a result, if a defect is detected as a result of the re-inspection, the defective portion can be automatically removed, and the continuous terminal remaining on the inspection machine side can be taken up by the take-up roll.

It is a figure which shows schematic structure of the continuous terminal manufacturing apparatus which concerns on this invention. It is a figure which shows schematic structure of the inspection machine of the continuous terminal manufacturing apparatus which concerns on this invention. It is a figure for demonstrating operation | movement of an inspection machine. It is a figure which shows schematic structure of the cutter of the continuous terminal manufacturing apparatus which concerns on this invention. It is a figure which shows an example of a continuous terminal. It is a figure which shows an example of the conventional continuous terminal manufacturing apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration of a continuous terminal manufacturing apparatus according to the present invention. The tape-shaped copper strip 5 continuously fed from the unwinding roll 4 is formed by the press machine 2 to form a continuous terminal 6 as shown in FIG. Further, between the press machine 2 and the winding device 1, the continuous terminal 6 is given a certain slack so as to absorb the difference in the conveyance timing between the intermittent conveyance and the continuous conveyance. This continuous terminal manufacturing apparatus is controlled by the control device 3.

  The continuous terminals 6 shown in FIG. 5 are connector terminals. In manufacturing the connector, each terminal is cut at the base while the continuous terminals 6 wound around a roll are drawn out, and the required number is set in a mold. Then, the housing is formed by a resin mold and is assembled into the connector.

The winding device 1 winds the inspection terminal 11 for inspecting the molding state of the continuous terminal 6 formed by the press machine 2, the cutter 12 for removing the defective portion detected by the inspection machine 11, and the continuous terminal 6. A take-up roll 15 for taking is provided. Further, after the defective portion is cut by the cutter 12, the feed roller 13 that sends the continuous terminal 6 remaining on the inspection machine 11 side to the take-up roll 15 side, and a terminal guide that guides the continuous terminal 6 to the take-up roll 15. 14 and an interlayer paper roll 16 for supplying an interlayer paper 17 interposed between the layers of the continuous terminal 6 wound around the winding roll 15.

  In the press machine 2 in the continuous terminal manufacturing apparatus, the continuous terminal 6 is formed by performing press working such as punching or bending while intermittently transporting the copper strip 5 in accordance with the timing of processing. In the winding device 1, the upper roller of the feed roller 13 is normally lifted up, and the continuous terminal 6 is conveyed while being pulled along with the winding operation of the winding roll 15.

  On the other hand, when a defect is detected as a result of re-inspection by the inspection machine 11, after the defective portion is cut by the cutter 12, the upper roller of the feed roller 13 is lowered and pressed against the continuous terminal 6, and the lower roller And the continuous terminal 6 remaining on the inspection machine 11 side is sent out to the winding roll 15 side.

  Next, the inspection machine 11 will be described. 2A and 2B are diagrams showing a schematic configuration of an inspection machine for a continuous terminal manufacturing apparatus according to the present invention, in which FIG. 2A is a plan view and FIG. 2B is a front view in which a subsequent drive unit is omitted. In FIG. 2, reference numerals 6 and 11 correspond to those of FIG. 1, 11a is a base, 11b is a guide for guiding the movement of the base 11a, and 11c is slid on the guide 11b while supporting the base 11a. 11d1, 11d2 are upper and lower cameras, 11e1, 11e2 are upper and lower ring-shaped lights, 11f1, 11f2 are backlights, 11g1, 11g2 are camera support units for supporting the cameras 11d1, 11d2, and 11h1, 11h2 are upper and lower , 11j is a ball screw screw shaft, 11k is a ball screw nut, 11l is a bearing of the screw shaft 11j, 11m is a motor for rotating the screw shaft 11j, and 11n is a continuous terminal holder. The continuous terminal holder 11n has an opening through which the continuous terminal 6 is passed, and has a holding portion that opens and closes and holds the continuous terminal 6 up and down.

  The base 11a is movable on the guide 11b via the slide block 11c in the conveying direction of the continuous terminal 6 and in the opposite direction. The base 11a is provided with cameras 11d1 and 11d2 above and below the continuous terminal 6 so that the upper and lower surfaces of the continuous terminal 6 can be inspected, and these are supported by camera support portions 11g1 and 11g2. Further, lights 11e1 and 11e2 for illuminating the inspection surface of the continuous terminal 6 and backlights 11f1 and 11f2 for obtaining the silhouette of the inspection portion are also provided in association with the cameras 11d1 and 11d2. Furthermore, air blows 11h1 and 11h2 are provided for blowing off processing oil adhering to the continuous terminal 6 at the time of reinspection.

  Further, a base connecting body 11i is attached to the base 11a, and a ball screw nut 11k is attached to the base connecting body 11i. When the screw shaft 11j is rotated by the motor 11m, the base connecting body 11i is connected. The body 11i moves, and accordingly, the base 11a can move in the conveying direction of the continuous terminal 6 and in the opposite direction.

  At all times, the base 11a is in a fixed position, the holding portions of the continuous terminal holders 11n, 11n are open, and the continuous terminal 6 is conveyed from the left to the right in the drawing. At that time, the lights 11e1 and 11e2 and the backlights 11f1 and 11f2 are turned on, images of the terminals are taken by the cameras 11d1 and 11d2, and the images are compared with the reference data to determine whether the images are within a predetermined range. Whether or not the terminal is good or bad is determined based on whether or not it is.

If the determination is “good”, the continuous terminal 6 is sent as it is and taken up on the take-up roll 15. On the other hand, when the determination is “bad”, the winding of the winding roll 15 is stopped, the conveyance of the continuous terminal 6 is stopped, and the holding portions of the continuous terminal holders 11n and 11n are closed to close the continuous terminal 6. Fix so that does not move. Then, the motor 11m is operated to move the base 11a in the transport direction by a predetermined distance (for example, about 10 cm), and then the base 11a is moved in a direction opposite to the transport direction while the continuous terminal Re-inspect.

  The operation when the determination is “bad” will be described with reference to FIG. When the x portion in FIG. 3A is defective, if the conveyance of the continuous terminal 6 is stopped, the continuous terminal 6 stops with a certain time delay, and the x portion determined to be defective is 3B position. In this state, the holding portions of the continuous terminal holders 11n and 11n are closed and fixed so that the continuous terminal 6 does not move. When the motor 11m is operated to move the base 11a by a predetermined distance in the transport direction, the state shown in FIG. From this state, air is blown with air blows 11h1, 11h2, and the reinspection is performed while moving the base 11a in the opposite direction by reversing the motor 11m. As a result, it is possible to confirm the state of the terminal again after removing the processing oil in the portion of X.

  If the result of the re-inspection is “good” as a result of the re-inspection, the holding portions of the continuous terminal holders 11n and 11n are opened, and the winding operation of the winding roll 15 is resumed. return. On the other hand, if the result of the re-inspection is “bad”, that portion cannot be used and is cut and removed by the cutter 12.

  4A and 4B are diagrams showing a schematic configuration of a cutter of the continuous terminal manufacturing apparatus according to the present invention. FIG. 4A is a front view, and FIG. 4B is a side view. 4, reference numerals 6 and 12 correspond to those in FIG. 1, 12a is a cutter blade, 12b is a cutter driving unit, 12c is a cutter lower blade, 12d is a movable guide, 12e is a guide driving unit, and 12f is The fixed guide 12g is a guide positioning device for setting the position of the fixed guide 12f in accordance with the width of the continuous terminal 6, 12h is a terminal sample sorting box, 12i is a rack, 12j is a pinion, 12k is a pinion drive motor is there.

  As described above, when the inspection machine 11 reinspects and determines that it is defective, the winding roll 15 (see FIG. 1) is rotated to send the continuous terminal 6 until the defective portion reaches the front of the cutter blade 12a. . And the cutter blade 12a is pushed down by the cutter drive part 12b, and the continuous terminal 6 is cut. Thereafter, when the feed roller 13 (see FIG. 1) is driven to move the continuous terminal 6 by a certain length corresponding to the length of the movable guide 12d, the cutter blade 12a is pushed down again to cut the continuous terminal 6.

  And the guide drive part 12e is operated, the movable guide 12d is moved outside, and the cut piece of the continuous terminal 6 including the cut defective part is dropped into the terminal sample selection box 12h.

  The terminal sample sorting box 12h has three storage parts and can be moved in a direction crossing the conveying path of the continuous terminal 6 by a rack and pinion comprising a rack 12i and a pinion 12j. The cut piece including the defective portion is stored in a predetermined storage portion by operating the pinion drive motor 12k. In the other storage section of the terminal sample sorting box 12h, the sample of the continuous terminal 6 to be cut by the cutter 12 is stored at the start of winding of each winding roll 15 or at the end of winding.

  After the cut piece including the defective portion is cut by the cutter 12, the continuous terminal 6 cannot be pulled by the winding roll 15 as it is, so that the feed roller 13 is driven to bring the continuous terminal 6 to the winding roll 15 at the tip. Send until you reach. In the meantime, the winding roll 15 is rotated so that only the interlayer paper 17 is idled a few times, and the leading end of the continuous terminal 6 fed by the feed roller 13 is sandwiched between the interlayer papers 17. After that, since the continuous terminal 6 can be conveyed by the rotation of the winding roll 15, the upper roller of the feeding roller 13 is pulled up so that the continuous terminal 6 is conveyed only by the winding roll 15, and the normal terminal 6 is conveyed. Return to the manufacturing process.

The process from the re-inspection until the leading end of the cut continuous terminal 6 is wound on the take-up roll 15 is completed in a few seconds. During this time, the operation of the press machine 2 is continued, and the continuous terminal 6 made there. Is accumulated in a slack portion between the winding device 1 and the continuous terminal 6 can be continuously manufactured.

  In addition, in the said Example, although the case where the test | inspection machine 11 was integrated in the winding device 1 was shown, you may install the test | inspection machine 11 separately from the winding device 1. FIG.

DESCRIPTION OF SYMBOLS 1 Winding device 2 Press machine 3 Control device 4 Unwinding roll 5 Copper strip 6 Continuous terminal 11 Inspection machine 11a Base 11b Guide 11c Slide block 11d1, 11d2 Camera 11e1, 11e2 Light 11f1, 11f2 Backlight 11g1, 11g2 Camera support part 11h1, 11h2 Air blow 11i Base connection body 11j Screw shaft 11k Nut 11l Bearing 11m Motor 11n Continuous terminal holder 12 Cutter 12a Cutter blade 12b Cutter drive unit 12c Cutter lower blade 12d Movable guide 12e Guide drive unit 12f Fixed guide 12g Guide positioning device 12h Terminal sample Sorting box 12i Rack 12j Pinion 12k Pinion drive motor 13 Feed roller 14 Terminal guide 15 Winding roll 16 Interlayer paper roll 17 Interlayer paper

Claims (3)

The tape-shaped metal material continuously drawn from the unwinding roll is molded with a press machine to create a continuous terminal, and the formed continuous terminal is passed through an inspection machine to inspect the molding condition of the terminal, and then the winding roll is used. A continuous terminal manufacturing device that is wound up,
The inspection machine is provided with an imaging device for taking an image for quality determination of the continuous terminal on a base that is movable in the transport direction of the continuous terminal, and transports the continuous terminal when a defect is determined. The continuous terminal manufacturing apparatus characterized in that the continuous terminal is reinspected while being stopped and moved in the transport direction by a predetermined distance and then moved in a direction opposite to the transport direction. .   A continuous terminal holder is provided before and after the conveying direction of the inspection machine, and the continuous terminal holder prevents the continuous terminal from moving when the inspection machine determines that a defect has occurred and stops conveying the continuous terminal. The continuous terminal manufacturing apparatus according to claim 1, wherein the continuous terminal is held.   A cutter that cuts the continuous terminal by a certain length is provided at the rear part in the transport direction of the inspection machine, and a feed roller that can feed the continuous terminal in the transport direction is provided between the inspection machine and the cutter. When the defect is determined in the re-inspection, the defective portion is cut and removed by the cutter, and the continuous terminal remaining on the inspection machine side from the cut portion is sent to the winding roll by the feeding roller. The continuous terminal manufacturing apparatus according to claim 1 or 2, wherein the apparatus is a continuous terminal manufacturing apparatus.

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