JP4418410B2 - Wire rod processing method and wire rod processing machine - Google Patents

Description

The present invention relates to a wire processing method and a wire processing machine such as a wire, a bar, and a pipe.

It has already been known that a wire is introduced into a bending machine through a straightening device, bent, and cut (for example, Japanese Patent Publication No. 63-16214). In this conventional apparatus, when the wire material is bent and cut, the wire material is temporarily retracted. At this time, the retracted wire material is inadvertently bent by a correcting means such as a correction roller group (back bending phenomenon). There was a risk that it would be unnecessarily recorrected. Therefore, the present applicant has previously solved this problem and developed a technique for simultaneously retracting the correcting means such as the correcting roller group when the wire is retracted, and applied for a patent (Japanese Patent Laid-Open No. 2002-192233).
Japanese Patent Publication No. 63-16214 JP 2002-192233 A

  However, the following problems occurred. That is, when the wire is fed while being pinched by a rotating feed roller, the wire is fed while being twisted. This phenomenon is caused by wrinkles of the wire, and the bent portion repeats rocking when being bent and sent. If bending is performed when the swing direction and amount are not the same, the bending accuracy will vary in bending accuracy. Therefore, the bending accuracy of the bent and bent portions has been deteriorated. This twisting phenomenon is thought to be caused in the first place by the wire being drawn through a die and wound into a coil shape.

An object of the present invention is to solve the above-mentioned problems and to provide a wire rod processing method and a wire rod processing machine that are not affected by the twisting phenomenon of the wire rod when the wire rod is advanced or retracted.

  In the method of the first problem solving means of the present invention, a wire material stored in a coil shape on a wire material coil stand is passed through a straightening device via a feeding guide, and sent to a wire material processing section via a wire material feed roller. In this configuration, the wire rod feed roller is rotated while the wire rod is passed through the wire rod straightening portion, and the wire rod is fed into the wire rod machining portion by a length required for the processed product, and after the step, In a state where the rotation is stopped and the wire is sandwiched, the feeding roller and the wire straightening portion are simultaneously advanced or retracted to process the wire.

  In the method of the second problem solving means of the present invention, a wire material stored in a coil shape on a wire material coil stand is passed through a straightening device via a feeding guide, and sent to a wire material processing section via a wire material feed roller. In this case, the wire rod feed roller is driven to rotate in a state where the wire rod is passed through the wire rod straightening portion, and the wire rod is fed to the wire rod machining portion by a length necessary for the processed product, and after the step, In a state where the rotation is stopped and the wire is held, the wire processing unit is moved forward or backward to process the wire.

  The apparatus of the third problem solving means of the present invention comprises a wire rod processing unit, a wire coil stand, a wire rod feeding guide, a wire rod straightening portion, a wire rod feeding roller, and a carriage provided with the wire rod straightening portion and the wire rod feeding roller. A carriage that reciprocally supports the carriage, a rail that is provided on the carriage and that guides the carriage to reciprocate in parallel with the wire feed direction, and reciprocates the carriage along the rail. Power reciprocating means to be included.

  The apparatus of the 4th problem-solving means of this invention is a wire rod processing part, a wire rod coil stand, a wire rod feeding guide, a wire rod straightening portion, a wire rod feed roller, a carriage provided with the wire rod processing portion, A pedestal for reciprocally supporting the table; a rail provided on the pedestal for reciprocatingly guiding the reciprocating table in parallel with a wire feed direction; and a power reciprocating means for reciprocating the reciprocating table along the rail Is included.

  According to a fifth problem solving means of the present invention, in addition to the third or fourth problem solving means, the power reciprocating means of the carriage is provided with a screw rod provided on the stand parallel to the rail, and a screw rod. It includes a nut member that is engaged and provided on the carriage, a transmission means connected to the screw rod, and a reciprocating motor connected to the transmission means.

  According to a sixth problem solving means of the present invention, in addition to the third or fourth problem solving means, the gantry is provided with an origin stopper for regulating a reference position of the carriage.

  In the present invention, since the material is first fed out by the roller and then the wire is processed while the wire is sandwiched by the roller, the twisting phenomenon of the wire can be suppressed. For this reason, machining accuracy was improved.

  Embodiments of the present invention will be described below based on an embodiment shown in the drawings. In the entire front view of FIG. 1, a wire (hoop material) W stored in a coil shape on a wire coil stand V1 is passed through a correction device A through a feeding guide V2, and is fed to a feed amount detection roller B and a wire feed. It is fed into a wire material processing portion (wire material bending device) D through a roller C.

 2, 3, and 4, the wire straightening portion A, the feed amount detection roller B, and the wire rod feed portion C according to the apparatus of the present invention are installed on the carriage 3 so that the carriage can reciprocate to the gantry 1 Supported. The gantry 1 is provided with a rail 2 that guides the carriage 3 so that the carriage 3 can reciprocate in parallel with the wire feed direction. Power reciprocating means 5 for reciprocating the carriage 3 along the rail 2 is provided.

  The power reciprocating means 5 of the carriage 3 includes a ball screw rod 5a provided on the gantry 1 parallel to the rail 2, and a nut member 5b provided on the lower surface of the carriage 3 so as to engage with the screw rod. , A transmission means (belt transmission means) 5d connected to the screw rod 5a, and a reciprocating motor (servo motor) 5c connected to the transmission means. The gantry 1 is provided with an origin stopper 6 that regulates the forward limit position of the carriage 3.

  The operating state will be described above. The carriage 3 is returned to the origin position (a state where it is in contact with the origin stopper 6) by the power reciprocating means 5. With the wire W passing through the wire straightening part A, the wire feed roller C1 of the wire feed part C is rotationally driven by the wire feed motor C2, and the feed amount detection roller B is fed by the length necessary for the processed product. And feeding into the wire processing part D while measuring (step 1).

  Simultaneously with the step 1, the feed roller and the wire straightening portion A are moved backward by an amount corresponding to the required length while the feed roller C1 is rotated and fed (step 2). That is, when the reciprocating motor 5c is synchronized with the wire feed motor C2, the screw rod 5a is reversed via the transmission means 5d, and the carriage 3 is moved backward by the nut member 5b engaged with the screw rod.

  After step 2, with the wire W sandwiched while the rotation of the feed roller C1 is stopped, the carriage 3 is moved forward by the forward rotation of the reciprocating motor 5c, stopped, and bent at the wire processing section D. Processing, and finally cutting, one product is completed. In this way, the carriage 3 is moved forward, stopped, and processed. In some cases, the carriage 3 is retracted, stopped, and processed. When the processing is completed, the carriage 3 (feed roller C1) is returned to the origin position. (Or start the machining process for the next product without returning to the origin.)

  Therefore, when the wire rod is advanced or retracted, the carriage 3 is moved forward or backward while the wire rod is held while the rotation of the feed roller C1 is stopped, so that the twisting phenomenon of the wire rod can be suppressed when the wire rod is advanced or retracted. .

  Here, in the said Example, a feed roller and the said wire straightening part A are reverse | retreated by the part corresponding to the said required length simultaneously, rotating a feed roller C1 and sending a wire. Therefore, when the feeding of the wire is finished, the machining can be performed immediately and the working time can be shortened. However, the wire rod may be fed by a roller, and then the carriage 3 may be retracted to the processing start position, and then the carriage 3 may be advanced to process.

   Next, as shown in FIGS. 5 and 6, in the second invention, the material is first fed out by the roller, and then the wire rod is processed by moving the wire rod processing portion D forward or backward in a state where the wire rod is sandwiched by the roller. Is. That is, the wire material processing portion D is installed on the carriage 13, and the carriage is supported by the upper beam of the rectangular frame base 11 so as to be able to reciprocate. The gantry 11 is provided with a rail 12 that guides the carriage 13 so as to reciprocate in parallel with the feeding direction of the wire. Power reciprocating means 15 for reciprocating the carriage 13 along the rail 2 is provided. The wire straightening part A, the feed amount detection roller B, and the wire feed part C are installed and fixed on the gantry 1.

  The power reciprocating means 15 of the carriage 13 includes a ball screw rod 15 a provided on the mount 11 parallel to the rail 12, and a nut member 15 b provided on the upper surface of the carriage 13 by engaging with the screw rod. The screw rod 15a includes a reciprocating motor (servo motor) 15c. The gantry 11 is provided with an origin stopper 16 that regulates the backward limit position of the carriage 13.

  The operating state will be described above. The carriage 13 is returned to the origin position by the power reciprocating means 15. In a state where the wire W is passed through the wire rod correction portion A, the wire rod feed roller C1 of the wire rod feed portion C is rotated by the wire rod feed motor C2, and the wire rod is fed into the wire rod processing portion D by a length necessary for the processed product. (Step 1).

  Simultaneously with step 1, the wire processing section D is advanced by an amount corresponding to the required length while rotating and feeding the feed roller C1 (step 2). That is, the screw rod 15a is rotated forward by the forward rotation of the reciprocating motor 15c, and the carriage 13 is advanced by the nut member 15b engaged with the screw rod.

  After Step 2, with the wire W sandwiched while the rotation of the feed roller C1 is stopped, the carriage 3 is moved backward by the reciprocation of the reciprocating motor 15c, stopped, and processed by the wire processing section D. Apply. In this way, the carriage 3 is moved backward, stopped, and processed. Moreover, depending on the case, the carriage 3 is advanced, stopped, and processed. When the processing is completed, the carriage 13 is returned to the origin position.

  Accordingly, when the wire rod is advanced or retracted, the carriage 13 (wire material processing portion D) is moved forward or backward while the wire rod is held while the rotation of the feed roller C1 is stopped. Therefore, when the wire rod is advanced or retracted, the wire rod is moved forward or backward. The torsion phenomenon can be suppressed.

  Here, in the embodiment of the second invention, while the wire rod is fed by rotating the feed roller C1, the carriage 13 (wire rod processing portion D) is simultaneously advanced by an amount corresponding to the required length. Therefore, when the feeding of the wire is finished, the machining can be performed immediately and the working time can be shortened. However, the wire rod may be fed by a roller, and then the carriage 3 may be advanced to the machining start position, and then the carriage 3 may be moved backward to process. In addition, you may receive the carriage 13 (wire processing part D) on the upper side of a mount frame.

  In addition, as the power reciprocating means 5 and 15, instead of the ball screw rod 15a and the nut member 15b, a rack fixed to the gantry side and a pinion (installed on the reciprocating table side) which meshes with the rack and is rotated. . In addition, a loop belt and a pulley or a loop chain and a chain wheel provided on the gantry side are applied, and the carriage is connected to the loop belt or the loop chain. In the case of the ball screw rod 15a and the nut member 15b, the accuracy of position control is high.

  The present invention is not limited to the above-described embodiments and embodiments, but includes various modifications without departing from the spirit and scope of the claims.

The present invention can be used for a wire rod processing method and a wire rod processing machine .

It is a schematic front view of one Example of this invention. It is a principal part enlarged view of FIG. FIG. 3 is a plan view of FIG. 2. FIG. 3 is a left side view of FIG. 2. It is a principal part front view of the other Example of this invention. FIG. 6 is a sectional view taken along line Y6-Y6 of FIG.

Explanation of symbols

W Wire rod V1 Wire rod coil stand V2 Feeding guide A Wire rod straightening portion B Wire rod feed amount detection portion C Wire rod feed portion C1 Wire rod feed roller C2 Wire rod feed motor D Wire rod bending portion 1 Mounting base 2 Rail 3 Reciprocating base 4 Linear motion bearing 5 Reciprocating means 5a Screw rod (ball screw)
5b Nut member 5c Reciprocating motor (servo motor)
5d Transmission means (belt transmission)
6 Front limit stopper

Claims (6)

The wire rod stored in the coil shape on the wire coil stand is passed through the straightening device via the feeding guide, and is fed to the wire rod processing section via the wire rod feed roller. Then, the step of rotating the wire rod feeding roller and feeding the wire rod to the wire rod processing part by the length necessary for the processed product,
After the step, in a state where the rotation of the feed roller is stopped and the wire is sandwiched, the feed roller and the wire straightening portion are simultaneously advanced or retracted to process the wire. Wire rod processing method . The wire rod stored in the coil shape on the wire coil stand is passed through the straightening device via the feeding guide, and is fed to the wire rod processing section via the wire rod feed roller. Then, the step of rotating the wire rod feeding roller and feeding the wire rod to the wire rod processing part by the length necessary for the processed product,
After the step, the wire rod processing method includes the step of processing the wire rod by moving the wire rod processing portion forward or backward while stopping the rotation of the feed roller and holding the wire rod . A wire processing unit, and a wire coil stand, and wire rod feeding guide, a wire straightening unit, the wire feeding roller, a carriage which is installing the wire straightening unit and wire feed roller to reciprocally supporting the carriage A pedestal, a rail provided on the pedestal to guide the reciprocating table so as to reciprocate in parallel with the wire feed direction, and a power reciprocating means for reciprocating the reciprocating table along the rail. Wire rod processing machine . A wire processing unit, and a wire coil stand, and wire rod feeding guide, a wire straightening unit, the wire feeding roller, a carriage which is placed said wire processing unit, and a pedestal for reciprocally supporting the carriage, the A wire rod processing machine comprising: a rail provided on a pedestal for guiding the carriage to reciprocate parallel to a wire feed direction; and a power reciprocating means for reciprocating the carriage along the rail. The power reciprocating means of the carriage is connected to the screw rod provided on the carriage parallel to the rail, a nut member engaged with the screw rod and provided on the carriage, and the screw rod. The wire rod processing machine according to claim 3 or 4, comprising a transmission means and a reciprocating motor connected to the transmission means. 5. The wire rod processing machine according to claim 3, wherein an origin stopper for regulating a reference position of the carriage is provided on the gantry.

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