JP3197599U - Wire rod feeder - Google Patents

Abstract

The present invention provides a wire supply device that simplifies the structure of a wire feed amount adjusting means, can be easily assembled, and can perform a feed amount adjusting operation very quickly, easily and accurately. In a connecting portion between a drive roller for driving a feed roller and a connecting rod that swings the lever in a wire supplying device that intermittently supplies a wire to a forging machine by a predetermined dimension, a connecting rod is connected. The shaft 35 has a mounting structure in which the length in the radial direction from the center of the lever to the shaft center of the connecting shaft can be arbitrarily changed with respect to the driving lever, and the driving at the time of reciprocating movement of the connecting rod by adjusting the radial length by this mounting structure Feed amount adjusting means for adjusting the feed amount of the wire by the feed roller by changing the reciprocating swing amount of the lever is provided. [Selection] Figure 4

Description

  The present invention relates to a wire supply device for supplying a wire to a forging machine by intermittent rotation of a feed roller.

  Conventionally, a forging machine used when manufacturing bolts, nuts, and other various parts is roughly processed by a forging station having a die and a punch opposed to each other. A product of a predetermined shape is continuously manufactured by precisely stepping forging. In the forging forming machine, a wire rod made of bar material or a coil is wound around the side of the machine base. A wire rod is set and intermittently supplied to the wire rod cutting device in the forging machine by a wire rod feeding device provided with a feed roller that rotates while sandwiching the wire rod, and the wire rod is sequentially supplied from the tip on the wire rod cutting device side. It cut | disconnects to a predetermined dimension and is made to carry this to a forging station as a raw material.

  The wire rod supply device has, for example, a two-stage feed roller pair composed of a pair of upper and lower feed rollers attached to one end of a plurality of roller shafts rotatably supported by a gantry. In the groove provided on the outer periphery, the wire is sandwiched from above and below, and the pair of upper and lower feed rollers are intermittently rotated by the drive mechanism of the wire supply device so that the wire is intermittently supplied to the forging machine. It is configured.

  In that case, the drive mechanism is mounted on a roller drive shaft having a drive gear that is rotatably supported by the frame and meshes with a roller gear provided on the roller shaft of the lower feed roller, and one end shaft of the roller drive shaft; A one-way clutch that transmits power only in one direction to the roller drive shaft, a drive lever that is fixed to the outer periphery of the one-way clutch and that can swing around the roller drive shaft, and a drive source for the forging machine A connecting rod that reciprocates in synchronization with the advance and retreat of the punch by force, and the reciprocating motion of the connecting rod transmits power to the roller drive shaft by the one-way clutch only when the drive lever is swung in the wire feed direction. The roller drive shaft, that is, the pair of upper and lower feed rollers is configured to intermittently rotate only in the wire feed direction.

  JP 2002-331328 A

  Incidentally, the drive mechanism described above is provided with a feed amount adjusting means for adjusting the feed amount of the wire by intermittent rotation of the feed roller. In that case, conventionally, for example, the connecting rod is divided into two parts at the intermediate part in the longitudinal direction, and an intermediate rocking lever is slidably disposed at the position of the machine base corresponding to the divided part. The front end of the base end side (driving source side) connecting rod of the connecting rod divided in two is pivotally supported in the middle portion in the vertical direction, while the front end of the remaining distal end side connecting rod is pivotally supported on the front end of the drive lever and the rear end is intermediate At the free end part of the swing lever, the length in the radial direction with respect to the center of the lever can be arbitrarily changed and adjusted, and by changing and adjusting the mounting position of the leading connecting rod with respect to the intermediate swing lever, the intermediate swing lever The rocking angle of the connecting rod on the front end, that is, the rocking angle of the drive lever is changed, and thereby the feed amount of the wire due to intermittent rotation of the feed roller is adjusted.

  However, in the structure of the conventional feed amount adjusting means described above, it is necessary to divide the connecting rod into two parts, to use an intermediate swing lever specially, and to install the lever at a specific position on the machine base. Therefore, the structure becomes very complicated, the assembly is complicated and troublesome, and when adjusting the mounting position for the intermediate swing lever at the rear end of the leading end connecting rod, the position holding state is loosened manually, and then the tip Since the length of the rear end of the side connecting rod is adjusted in the radial direction with respect to the center of the intermediate swing lever, the adjustment work is very complicated and requires a lot of skill and labor.

  Therefore, the present invention simplifies the structure of the feed amount adjusting means for adjusting the feed amount of the wire by intermittent rotation of the feed roller, can be easily assembled, and the feed amount adjustment work is very simple and easy. It is an object of the present invention to provide a wire supply device that can be quickly and quickly performed.

  The invention according to claim 1 of the present application includes at least a pair of opposed feed rollers for sandwiching a wire, a roller drive shaft having a drive gear meshing with one of the roller gears provided on the roller shaft of these feed rollers, and a roller A one-way clutch that is mounted on one end shaft of the drive shaft and transmits power only in one direction to the roller drive shaft, and a drive lever that is fixed to the outer periphery of the one-way clutch and that can swing around the roller drive shaft And a connecting rod that is freely connected to the free end of the drive lever via a connecting shaft and reciprocates in synchronism with the advance and retreat of the punch by the driving force of the driving source of the forging machine. When the drive lever is reciprocally swung by, power is transmitted to the roller drive shaft only when the one-way clutch is swung in the wire feed direction, Is a wire rod supply device that intermittently supplies a forging machine to a forging machine by a predetermined dimension, wherein a connecting shaft for connecting the connecting rod is connected to the driving lever from the center of the lever at the connecting portion of the driving lever and the connecting rod. The mounting length can be adjusted by changing the length in the radial direction to the axis of the shaft, and the reciprocating swing amount of the drive lever during the reciprocating movement of the connecting rod is changed by adjusting the radial length by this mounting configuration. A feed amount adjusting means for adjusting the feed amount of the wire by the feed roller is provided.

  According to a second aspect of the present invention, as the feed amount adjusting means according to the first aspect, the drive lever is configured such that a pair of side walls including a circular base portion and a lever portion extending in a radial direction from the base portion are relatively spaced at a predetermined interval. The bosses formed at the center of both circular bases rotate in one direction around the roller drive shaft via a one-way clutch. Only a round hole is formed on the base side of both lever parts, and a long hole is formed on the free end side so as to face each other. The rotary shaft, which has both ends projecting outward through both round holes, is rotatably supported, and each end projecting portion of the rotary shaft is provided with a worm, and rotates to at least one projecting end. Operation tool can be engaged The connecting rod is formed so that the tip of the connecting rod can be inserted between the two levers, and the ends of the connecting rods pass through the long holes of the levers. A connecting shaft for attaching a connecting rod that protrudes and is movable along the elongated hole is provided, and screw holes in the vertical direction are formed at both protruding ends of the connecting shaft. A pair of adjusting screw shafts with worm wheels that mesh with each other and a threaded portion that is screwed into the screw hole at the other end are symmetrically supported on the outer surfaces of both lever portions via the intermediate shaft part, and are only freely supported for rotation. The pair of adjusting screw shafts are simultaneously rotated by the rotation of the rotation shaft by the rotation operation tool, thereby changing the length in the radial direction with respect to the center of the driving lever of the connecting shaft for connecting the connecting rod to an arbitrary length. To adjust Characterized in that it is configured.

  According to the first aspect of the present invention, the connecting shaft for connecting the connecting rod is connected to the driving lever at the connecting portion of the driving lever for driving the feed roller and the connecting rod that swings the lever. With a mounting configuration that can arbitrarily change the radial length from the center to the shaft center of the connecting shaft, by adjusting the radial length by this mounting configuration, the reciprocating swing amount of the drive lever at the time of reciprocating movement of the connecting rod is changed, Since the feed amount adjusting means for adjusting the feed amount of the wire by the feed roller is provided, the structure of the feed amount adjusting means for adjusting the feed amount of the wire by intermittent rotation of the feed roller can be simplified and Assembling can be performed easily, and the feed amount adjustment work can be performed easily and quickly.

  Further, according to the feed amount adjusting means having the configuration described in claim 2 of the present invention, in addition to the above-described effect, at the time of adjusting the wire X feed amount, only the rotary shaft is rotated by using an electric rotation operation tool or the like. By rotating the pair of adjusting screw shafts simultaneously by a very simple operation, the radial length of the connecting rod mounting connecting shaft with respect to the center of the drive lever can be changed and adjusted accurately to an arbitrary length. As a result, the feed amount adjustment operation can be performed very quickly, easily and accurately.

It is a schematic plan view of the wire supply apparatus which concerns on this invention. It is a partially omitted front view of the same wire supply device. It is a partial longitudinal explanatory view of the wire supply device. It is an expanded vertical sectional view of the principal part in the feed mechanism of a wire supply apparatus. It is a partially notched top view of the principal part in the feed mechanism.

  Hereinafter, the intermittent feed amount adjusting means in the wire supply device according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic plan view of a multistage forging machine 1, and a wire rod supply device 2 provided with an intermittent feed amount adjusting means of the present invention is arranged on the side of the multistage forging machine 1. The wire X is intermittently supplied to the multistage forging machine 1 by a wire supply device 2 for a fixed length.

  First, the multistage forging machine 1 will be described. A plurality of dies 4... 4 from coarse to fine are arranged in parallel at a predetermined interval at a predetermined position of the machine base 3 in the multistage forging machine 1. In addition, a plurality of punches 6 ... 6 are arranged on the front surface of the ram 5 mounted on the machine base 3 so as to face the dies 4 ... 4, in front of the dies 4 ... 4. These opposing dies 4... 4 and punches 6... 6 constitute a plurality of forging stations.

  The multi-stage forging machine 1 includes a drive source such as a motor (not shown), and moves a ram 5 (not shown) operated by the drive force of the drive source back and forth with respect to the dies 4. Thus, a material (not shown) is forged between each punch 6... 6 mounted on the front surface of the ram 5 and each die 4.

  The side of the machine base 3 is provided with a wire supply port 7 for introducing the wire X supplied from the wire supply device 2 into the multistage forging machine 1 and supplied through the wire supply port 7. The wire X passes through the quill 9 arranged in the juxtaposed direction of the tube member 8 and the dies 4... 4, and comes into contact with the stopper 10. In synchronism, the cutter 11 is reciprocated in the direction in which the dies 4... 4 are arranged in sliding contact with the front end face of the quill 9 and is cut to a predetermined size.

  On the other hand, as shown in FIGS. 2 to 3, the wire rod supply device 2 includes a pair of upper and lower feed rollers 23... 23 attached to one end of a plurality of roller shafts 22. It has a pair of feed rollers in a plurality of stages (two stages in the figure), and a wire 23 is sandwiched from above and below by a groove 23a provided on the outer periphery of these feed rollers 23 ... 23, and the drive mechanism described below Thus, the feed rollers 23 are rotated to supply the wire X to the multistage forging machine 1.

  That is, a drive mechanism 24 for intermittently driving the feed rollers 23 ... 23 is provided below the feed rollers 23 ... 23. The drive mechanism 24 is disposed at one end of the roller drive shaft 25 and rotatably supported by the gantry 21 and transmits power only in one direction to the roller drive shaft 25 via the one-way clutch 26. And a drive lever 27 rotatably supported by the roller drive shaft 25. The drive lever 27 is linked to the drive source of the multistage forging machine 1 through a linkage mechanism as appropriate, and the punch 6 advances and retreats. The connecting rod 28 that operates in synchronism with is connected. In the reciprocating motion of the connecting rod 28, when the drive lever 27 is swung in the direction A (wire feed direction) in FIG. 3, the power is transmitted to the roller drive shaft 25 by the one-way clutch 26, thereby driving the roller. The shaft 25 is configured to rotate intermittently only in the direction B of FIG.

  A drive gear 29 that rotates integrally with the drive shaft 25 is attached to the roller drive shaft 25 adjacent to the drive lever 27. The roller shafts 22... 22 are attached with roller gears 30... 30 that can rotate integrally with the roller shafts 22... 22, and a pair of roller gears 30. Yes. The drive gear 29 and the lower roller gears 30 ... 30 are further meshed with each other, whereby the rotation of the drive shaft 25 is transmitted to the roller shafts 22 ... 22 and the feed rollers 23 ... 23 are intermittently rotated. It has become so.

    Further, at the end of the roller drive shaft 25 opposite to where the drive lever 27 is inserted, the roller drive shaft 25 rotates in the direction opposite to the direction of FIG. A braking portion 31 for blocking is provided, and a braking effect is exerted by friction generated between a braking material (not shown) provided on the braking portion 31 and a sliding contact member (not shown) provided on the drive shaft 25. As a result, when the drive lever 27 stops, the stop state is maintained.

  And in this invention, the feed amount adjustment means which adjusts the feed amount of the wire X is provided in the connection part of the drive lever 27 and the connecting rod 28 of the wire supply apparatus 2 comprised as mentioned above.

  As a specific configuration of the feed amount adjusting means, as shown in FIGS. 3 to 5, the drive lever 27 includes a pair of dryer-shaped side walls 27A including a circular base portion 27a and a lever portion 27b extending radially from the base portion 27a. , 27A are integrally connected by connecting bolts B... B around the outer circumferences of the circular base portions 27a, 27a so as to face each other at a predetermined interval. The drive lever 27 is rotatably supported via bearings G and G on a receiving cylinder S in which boss portions 27c and 27c formed at the center portion of the circular base portion 27a are fixed to one end of the roller drive shaft 25. At the same time, the power is transmitted to the roller drive shaft 25 only when the drive lever 27 swings through the one-way clutch 26... 26 in the wire feed direction. On the other hand, as shown in FIG. 5, round holes 27d, 27d are formed on the base side of the lever portions 27b, 27b, and long holes 27e, 27e are formed opposite to each other on the free end side as shown in FIG. ing. In that case, the long holes 27e and 27e are formed along the radiation extending in the radial direction from the centers of the boss portions 27c and 27c, while the round holes 27d and 27d are displaced from the radiation when the long holes are formed (see FIG. 5 is deviated to the right). The positions where the one-way clutches 26... 26 are provided are not limited to the positions described above, but may be appropriately configured at other appropriate positions such as the bearings G and G.

  Then, as shown in FIG. 5, the rotary shafts 32 penetrating the round holes 27d and 27d and projecting outward are rotatably supported in the round holes 27d and 27d of the lever portions 27b and 27b. Worms 33, 33 are provided at portions protruding outward from both lever portions 27b, 27b of the rotating shaft 32, and L-shaped support rods 34, 34 attached to the outer surfaces of both lever portions 27b, 27b at the protruding tip portions. Further, one protruding end (right side in FIG. 4) is further protruded outward from the L-shaped support rod 34, and a rotating operation tool (not shown) can be engaged with the protruding end. An engaging portion 32a is formed. In addition, as a rotary operation tool, an electric type or a manual type can be arbitrarily used.

  Further, the leading end of the connecting rod 28 is formed so as to be able to be inserted between the lever portions 27b, 27b, penetrates the long holes 27e, 27e of the lever portions 27b, 27b at the leading end, and protrudes outward, and A connecting shaft 35 for connecting a connecting rod that can move along the long holes 27e, 27e is provided, and screw holes 35a in the vertical direction are respectively provided at both end protruding portions protruding outward from both lever portions 27b, 27b of the connecting shaft 35. 35a is drilled.

  Then, as shown in FIG. 5, a pair of adjusting screw shafts 37 and 37 having a worm wheel 36 that meshes with the worm 33 at one end and a screw portion 37a that is screwed into the screw hole 35a at the other end are used. A pair of adjustment screw shafts 37 and 37 are supported on the outer surfaces of both lever portions 27b and 27b symmetrically in a left-right symmetric manner through the intermediate shaft portion.

  In this way, the pair of left and right adjusting screw shafts 37 and 37 are simultaneously rotated by the rotation of the rotating shaft 32 by the rotating operation tool, whereby the radial length of the connecting rod mounting connecting shaft 35 with respect to the center of the drive lever 27 is arbitrarily set. It is configured to change and adjust to the length.

In FIG. 2, reference numerals 38 and 38 denote air tanks of two sets of feed roller interval adjusting means provided above the gantry 21. The feed roller interval adjusting means removes air from the air tanks 38 and 38 to lower the air pressure when the tip end of the wire X is inserted and sandwiched between the pair of feed rollers 23 and 23, thereby lowering the air pressure. 23, 23 and the lower feed rollers 23, 23 are widened to facilitate insertion, and the air pressure is increased to increase the upper feed rollers 23, 23 and the lower feed rollers 23. , 23 is applied with a predetermined pressing pressure to the inserted wire X with the air pressure being narrowed by air pressure, and the wire X is sandwiched between the pair of upper and lower feed rollers 23, 23 under the predetermined pressing pressure. Yes. This roller drive feed roller interval adjusting mechanism is already known, and details thereof are omitted.
In FIG. 4, reference numerals 39, 39, 40, and 40 denote lock nuts for the adjustment screw shafts 37, 37. The adjustment screw shafts 37, 37 are loosened at the time of adjustment to perform adjustment work, and tightened at the end of the adjustment to tighten the adjustment screw shafts 37, 37 It is for fixing.

Next, the operation of the wire supply device 2 will be described.
First, when the connecting rod 28 in the drive mechanism 24 of the wire feeder 2 (not shown) moves forward and the drive lever 27 is swung in the direction A, the one-way clutch 26 rotates the roller drive shaft as shown in FIG. 25, the roller drive shaft 25 and the drive shaft gear 29 rotate in the direction B. Then, the lower roller gears 30 and 30 meshed with the drive shaft gear 29 rotate in the C direction, and the upper roller gears 30 and 30 meshed with the lower roller gears 30 and 30 also rotate in the C direction. At that time, the feed rollers 23... 23 at the ends of the roller shafts 22... 22 opposite to the roller gears 30 and 30 rotate in the same direction as the roller gears 30 and 30, respectively. In other words, only predetermined dimensions are supplied.

  At that time, the wire X is supplied through the wire supply port 7, the pipe member 8, and the quill 9 of the multistage forging machine 1, and stops when the tip end abuts against the stopper 10. At this time, in order to ensure that the wire X is brought into contact with the stopper 10 at this time, the feed roller gears 23. Then, after the feed roller gears 23... 23 are stopped, the cutter 11 moves forward on the front end face of the quill 9 and the wire X is cut into a predetermined dimension.

  After the cutting, when the connecting rod 28 is double-acted and the drive lever 27 is swung in the opposite direction of FIG. 3, the rotation of the drive lever 27 is not transmitted to the roller drive shaft 25 by the one-way clutch 26. Only the lever 27 is oscillated and returned in the anti-A direction in FIG.

  Normally, while repeatedly performing the above-described intermittent supply operation of the wire rod X by the wire rod cutting device 2, the tip end of the wire rod X supplied on the wire rod cutting device side is cut into a predetermined dimension, and this is used as a raw material for each forging station. Sequentially carried in and forged into the required shape at each forging station.

  On the other hand, when the shape of the molded product is changed or the length of the cutting material needs to be adjusted and the feed amount of the wire X is adjusted, the above-described feed amount adjusting means is used as follows.

First, when increasing the feed amount of the wire X, the lock nuts 39, 39, 40, 40 are loosened and the socket portion of the electric rotary operation tool is inserted into the engaging portion 32a of the rotary shaft 32 in the feed amount adjusting means. , And the rotational operation tool is rotated leftward, for example, to simultaneously rotate the pair of worms 33, 33 counterclockwise. Accordingly, the pair of worm wheels 36, 36 are simultaneously rotated to the right and the pair of adjusting screw shafts 37, 37 are simultaneously rotated to the right. The connecting shaft 35 for connecting the connecting rod is stably and accurately moved upward along the long holes 27e and 27e by simultaneous right rotation of the pair of adjusting screw shafts 37 and 37, and the connecting shaft 35 is shown in FIG. The connecting rod 28 is pulled up in the direction of the arrow. As a result, the distance from the center of the drive lever 27 to the connecting shaft 35, that is, the center of the connecting rod 28 is changed short, thereby changing the swing angle of the driving lever 27 when the connecting rod 28 reciprocates. is there. By changing the swing angle, the rotation angle of the drive gear 29 and the feed rollers 23... 23 is increased, and the feed amount of the wire X due to the intermittent rotation of the feed rollers 23. it can.
Further, when the feed amount of the wire X is reduced, an operation opposite to the above-described operation, that is, an operation of rotating the rotation operation tool in the right direction is performed.

  As described above, according to the wire rod feeding device 2 of the present invention, the feed amount adjusting means having the above-described structure is arranged at the connection portion between the drive lever 29 for driving the feed roller and the connecting rod 28 that swings the lever 29. Since it is provided, it is possible to simplify the structure of the feed amount adjusting means for adjusting the feed amount of the wire X by intermittent rotation of the feed rollers 23... 23, and to easily assemble it. Moreover, when adjusting the feed amount of the wire X, a pair of adjusting screw shafts 37 and 37 are simultaneously rotated by a simple operation that only rotates the rotary shaft 32 using an electric rotary operation tool or the like. The radial length of the coupling shaft 35 with respect to the center of the drive lever 29 can be changed and adjusted accurately and quickly to an arbitrary length. As a result, the feed amount adjustment operation can be performed very quickly, easily and accurately.

1 forging machine 22 roller shaft 23 feed roller 24 drive mechanism 25 roller drive shaft 26 one-way clutch 27 drive lever 28 connecting rod 29 drive gear 30 roller gear 32 rotating shaft 32a engaging portion 33 worm 35 connecting shaft 36 worm wheel 37 adjusting screw shaft 37a Threaded part

Claims (2)

  At least a pair of opposed feed rollers that sandwich the wire, a roller drive shaft having a drive gear meshing with one of the roller gears provided on the roller shafts of the feed rollers, and one end shaft of the roller drive shaft, A one-way clutch that transmits power only in one direction to the roller drive shaft, a drive lever that is fixed to the outer periphery of the one-way clutch and that can swing around the roller drive shaft, and a free end of the drive lever A connecting rod that is freely connected through a shaft and reciprocates in synchronism with the advance and retreat of the punch by the driving force of the driving source of the forging machine, and the drive lever is reciprocally swung by the reciprocating movement of the connecting rod. The power is transmitted to the roller drive shaft only when swinging in the wire feed direction by the one-way clutch, and the wire rod is intermittently transferred to the forging machine by a predetermined size. A connecting rod connecting rod connecting rod connecting rod connecting shaft for connecting rod to a driving lever having a radial length from the center of the lever to the axis of the connecting shaft. A feed amount adjustment that adjusts the feed amount of the wire rod by the feed roller by changing the reciprocating swing amount of the drive lever during the reciprocating movement of the connecting rod by adjusting the radial length by this attachment configuration. A wire supply device characterized by comprising means.   The drive lever constituting the feed amount adjusting means is integrally connected around the outer periphery of both circular bases with a pair of side walls consisting of a circular base and a lever extending radially from the base facing each other at a predetermined interval. And a boss formed at the center of both circular bases is rotatably supported to transmit power in only one direction to the roller drive shaft via the one-way clutch, and both A round hole is formed on the base side of the lever part, and a long hole is formed on the free end side so as to oppose each other. The rotating shaft projecting on the rotating shaft is rotatably supported, worms are provided on the projecting portions on both ends of the rotating shaft, and an engaging portion is formed on at least one projecting end with which a rotating operation tool can be engaged. And also stove The connecting rod is mounted so that the tip of the cable can be inserted between the two levers, and through the elongated holes of both levers, the ends projecting outward, and movable along the elongated holes. And a screw hole in the vertical direction is drilled at both ends of the projecting shaft of the connecting shaft, and has a worm wheel that meshes with the worm at one end and a screw at the other end. A pair of adjusting screw shafts having threaded portions that are screwed into the holes are symmetrically supported on the outer surfaces of both lever portions via their intermediate shaft portions and are freely supported only by rotation. A pair of adjusting screw shafts are simultaneously rotated by the rotation of the connecting rod, whereby the radial length with respect to the center of the drive lever of the connecting shaft for connecting the connecting rod is changed and adjusted to an arbitrary length. Claim 1 Mounting of the wire feeder.

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