JPH072102Y2 - Automatic wire feeder for horizontal metalworking machines - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a plurality of coil-shaped wire rods to be fed to a metal working machine such as a transfer bolt-former that sequentially transfers materials in a lateral direction to perform required forging. The present invention relates to a device which is prepared as a set and automatically supplies these wires.

[Conventional technology]

In metalworking machines such as bolt homes, in order to improve the operating rate, usually a plurality of sets of support bases that supply coil wire rods are prepared for one machine, and the supply of wire rods for one support base is completed. While the wire rod of the other support base is supplied, when switching the wire rod, in addition to the step change work of moving the support base, the tip of the new wire rod is cut to supply the straightening machine. Since it has to be sandwiched between the rolls or the feed rolls of the processing machine, not only the down time of the processing machine is lengthened, but also much labor is required.

Therefore, the present applicant has previously proposed a technique according to Japanese Utility Model Application Laid-Open No. 63-4961 for the purpose of speeding up the wire changing work. In other words, this device installs two wire rod support bases on a machine base that can be rotated by a predetermined angle in a horizontal state, and alternately rotates the support bases, for example, 40 degrees, so that new wire rods are alternately rotated. It is designed to switch and supply.

[Problems to be solved by the invention]

By the way, in the above-mentioned feeding device of Japanese Utility Model Laid-Open No. 63-4961, a roller for feeding a wire rod and other wire rod straightening rolls are provided for each support of each wire rod. Not only must the terminal and each distorted defective part at the beginning of the newly supplied wire be cut separately, but it is also necessary to continuously feed a new wire starting end to the terminal, so automatic supply is not possible. It is not enough.

It is an object of the present invention to eliminate the above-mentioned harmful effects and to more quickly and smoothly automatically supply a wire rod to this type of processing machine.

[Means for solving problems]

The automatic feeder of the present invention cuts to a predetermined size by intermittently supplying a coil wire, which is straightened by a feed roll provided at the rear of the processing machine with a straightening roll at the rear of the processing machine, to the processing machine. In a horizontal metalworking machine that sequentially transfers the raw material in the lateral direction to perform a required forging process, a cutting tool is provided at the front side of the straightening roll in the feeding direction, and the straightening roll and the feeding direction of the roll are further provided. Between the plurality of wire rods provided at the rear left and right positions, pinch rolls for holding the drawn-out portions of the above-mentioned wire rods respectively on a rack provided so as to be laterally movable at a predetermined interval are provided.
At each of the positions near the feed roll and the rear part of the straightening roll, the end of the wire being processed and the passage of the start of the next wire are individually detected to be a processing machine, a cutting tool, a pinch roll, and a pedestal of the roll, respectively. The feature is that a sensor for sending a required signal is provided.

[Action]

The device of the present invention stops the processing machine after a lapse of time when the wire end being processed is detected by one sensor near the straightening roll,
Moreover, the cutter is operated to cut the end portion, and then a signal for operating the processing machine is output, and when the end of the wire rod after the cutting is detected by the sensor near the feed roll, the processing machine is stopped and the pedestal is stopped. And a signal for driving the pinch roll holding the next wire rod, and then driving the pinch roll after a lapse of time when the former sensor detects the starting end of the next wire rod. At the same time as stopping, the cutting tool is operated to cut the above-mentioned starting end, and then a signal for driving the pinch roll is issued again, and when the above-mentioned starting end reaches the end of the wire rod, the operation of the processing machine is automatically restarted. Of.

〔Example〕

 The present invention will be described below with reference to the embodiments shown in the drawings.

In FIG. 1, reference numeral 1 denotes a horizontal metal working machine, which is a pair of left and right (or top and bottom) front and rear parts which rotate in association with the driving of the working machine at the rear part of a machine body 2 to which a wire is supplied. The feed rolls 3 and the stoppers 4 that determine the feed dimension of the wire rods in the forward direction of the wire rods, and the side portions between these feed rolls 3 and the stoppers 4, cut and grasp the wire rods when moving forward to the most forging position. A cutter 5 for transferring is provided, and although not shown in the machine body 2, like the general transfer type bolt homer, the material cut into a certain size by the cutter 5 and pressed into the most forging position is pressed. At the same time, there is provided a processing means for carrying out the required forging by sequentially transferring the material between the dies arranged in order from coarse to fine.

6 is a straightening roll provided on the rear extension base 2'of the machine base 2 so as to straighten the supply wire, and 7 is an extension base 2'between the feed roll 3 and the straightening roll 6. It is a wire rod cutting tool provided on the side part of the.

8a and 8b are wire rod bases at the rear of the straightening roll 6 that rotatably support the coiled wire rods a and b, respectively. The wire rods a, b are pulled out in front of the wire rods 8a, 8b in the wire rod pulling-out direction while being provided at a slightly separated position.
A pedestal 10 having left and right pinch rolls 9a and 9b for individually sandwiching is installed on a rail pedestal 11 so as to be able to move left and right at predetermined intervals. Reference numeral 12 denotes an electric motor for driving the pinch rolls 9a and 9b provided on the frame 10. The above pinch roll 9
a and 9b are forcibly driven individually by the electric motor 12 to send the sandwiched wire when the required signals are sent,
Further, when the gantry 10 is moved to the left or right on the rail pedestal 11, the wire rod holding shaft core of one of the pinch rolls 9a (or 9b) on the pedestal 10 holds the holding shafts of the feed roll 3 and the straightening roll 6. It is designed to match the core wire.

Reference numerals 13 and 14 are sensors for detecting passage of the respective end and start ends of the wire rods a and b at predetermined positions. One sensor 13 is near the entrance of the straightening roll 6 (in the illustrated example, on the rear side of the straightening roll 6), and the other. The sensors 14 are provided in the vicinity of the feed roll 3 (in the example, the intermediate side portions of the front and rear feed rolls 3). However, the sensor 13 sends a signal to a timer that counts the number of shots until reaching the position of the cutting tool 7 when detecting the passage of the end a'of the front wire (a in the illustrated example) (Fig. B), and then the end Immediately before the a'passes the position of the cutting tool, the operation of the processing machine 1 is temporarily stopped, and the cutting tool 7 is operated to cut off the end a '(Fig. C). A signal for operating the processing machine 1 is output until the sensor 14 described later detects "," and this sensor 13 causes the pinch roll 9b to pinch the vicinity of the tip b'of the next wire (b in the illustrated example) in advance. When the stored wire is sent out by driving the pinch roll 9b, the passage of the tip b'is detected, and when the tip slightly passes the position of the cutting tool 7, the operation of the processing machine 1 is stopped, The cutting tool 7 is operated to cut off the starting end b '( In addition, the sensor 14 outputs the signal to cause the front wire rod a to be operated by operating the processing machine after the end a'of the wire rod a is cut as described above.
When the passage of the end a ″ after the above cutting is detected (FIG. 2), the operation of the processing machine 1 is stopped, and the gantry 10 on the rail base 11 is moved to the side in the arrow direction by a predetermined distance,
Then, as described above, it is set to output a signal for forcibly driving the pinch roll 9b (Fig. E). When the sensor 13 detects the passage of the starting end b'of the next wire as described above, the pinch roll 9b is driven to give a signal to stop the starting end b ', and the starting end b'is cut by the cutting tool 7. At this time (in the figure), a signal for driving the roll again is issued so that the starting end b ″ after cutting is fed by the feed roll 3
It is supplied to the inside. However, when it is detected that the starting end b ″ of the next wire rod after cutting is attached to the end a ″ of the front wire a (the detection of this attachment is detected by a shock sensor or a timer provided separately), the pinch roll 9b. The feed roll 3 is operated together with the processing machine 1 at the same time as the above.

The above description has described an example in which the pedestals 10 of the pinch rolls 9a, 9b are moved left and right on the rail pedestal 11 with the wire rod pedestals 8a, 8b fixed, but as shown in FIG. The rail base 11 may be extended rearward and the wire rod bases 8a and 8b may be placed on the extension base 10. In this way, when the gantry 10 moves left and right, the wire rod bases 8a and 8b also move at the same time, without bending each wire rod between the wire rod bases and the pinch rolls in the middle of each pinch roll. Wire rods 8a, 8b at the rear of 9a, 9b
Thus, the wire rods a and b can be pulled out in a substantially straight line forward.

In the case of the above configuration, as shown in FIG. 1B, while the wire rod a is being sent to the processing machine 1, or before that, the next wire rod b is placed on the wire rod base 8b and the starting end b ′ is pinched. Roll 9b
Let it be sandwiched between. When the processing progresses and the end a'of the front wire a is detected by the sensor 13 (Fig. B), the processing machine 1 is stopped after a predetermined period of time, and the end a'is cut by the cutting tool 7 (Fig. C). Then, the processing machine restarts operation, and when the sensor 14 detects the end a ″ after cutting, the processing machine stops (Fig. 2), and the gantry 10 is moved in the direction of the arrow at a predetermined interval, and at the same time the pinch roll is moved. 9b is driven (Fig. 5e), and after the start of detection of the starting end b'of the wire b by the sensor 13, the roll
9b is stopped and the starting end is cut by the cutting tool 7 (see Fig.), And then the pinch roll 9b is driven again and the wire b
When the starting end b ″ after cutting is fed into the feed roll 3 and the starting end adheres to the end a ″ of the front wire a, the pinch roll 9b
Is stopped, and after that, the operation of the processing machine is restarted and normal processing continues.

When the operation of the processing machine is restarted, the end material a ″ of the front wire a usually has no predetermined length, and thus the final material a is removed by the first chuck of the processing machine. It is (Fig.).

When the processing of the next wire rod b starts in this way, the wire rod stand
The processing work can be continued by placing a new coil wire on 8a and sandwiching the start end between the pinch rolls 9a.
As described above, if the pedestal 10 of the pinch roll is extended rearward and the wire rod bases 8a and 8b are placed on the pedestal roll pedestal 10, the wire rods can be supplied more smoothly.

[Effect of device]

As is clear from the above description, according to the present invention,
By pulling out the starting end of the wire to be supplied next and pinching it in the pinch roll in advance while the processing machine is operating,
After that, by automatically supplying and switching the front wire to the next wire and removing the defective terminal, the work can be facilitated, and the processing machine can be continuously operated except for a short stop time.

[Brief description of drawings]

1 (a) to 1 (g) are plan views showing the essential parts of the device of the present invention in the order of operation, and FIG. 2 is a partial plan view showing another embodiment. 1 is a processing machine, 3 is a feed roll, 6 is a straightening roll, 7 is a cutting tool, 8a and 8b are wire rod stands, 9a and 9b are pinch rolls, and 13 and 14 are sensors.

Claims (2)

[Scope of utility model registration request] 1. A material cut into a predetermined size by intermittently supplying to the processing machine a coil wire which has been straightened by a correction roll provided at the rear of the processing machine by a straightening roll at the rear of the processing roll. In a horizontal metal working machine for sequentially transferring in a lateral direction to perform a required forging process, a cutting tool is provided on the front side of the straightening roll in the feeding direction, and further, the straightening roll and the left and right rears in the feeding direction of the roll are provided. Between the plurality of wire rods provided at the positions, pinch rolls for respectively holding the drawn-out portions of the respective wire rods are provided on a pedestal provided so as to be able to move laterally by a predetermined distance, and at the same time as the feed roll neighborhood and straightening At each position near the rear of the roll, the passage of the end of the wire being processed and the passage of the start of the next wire are individually detected, and the required signals are sent to the processing machine, cutting tool, pinch roll, and gantry of the roll. Automatic feeder for wire in horizontal metal working machine, characterized in that occupies provided Nsa. 2. The automatic supply of wire rods in a horizontal metalworking machine according to claim 1, wherein the pinch roll mount is extended to the rear part and a plurality of wire rod mounts are placed on the mount. apparatus.