JP2020070138A - Device and method for taking out rod material - Google Patents

Abstract

To provide a device and a method for taking out a rod material capable of reliably performing a re-holding operation when malfunction occurs in taking-out the rod material, and capable of reducing a loss of time caused by a time for taking out the rod material and stably supplying the rod material.SOLUTION: In a rod material take-out device for taking out one rod material from a plurality of rod materials, holding means for holding the one rod material from the plurality of rod materials is constructed to be movable in a direction inclined at a predetermined angle to a direction orthogonal to the longitudinal direction of the rod material with reference to a cross section of the rod material in the longitudinal direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bar material take-out device and a bar material take-out method for taking out only one bar material from a bundle of a plurality of bar materials.

  Generally, in bar processing, since each bar is processed one by one, when a plurality of bar materials are put together, it is necessary to take out only one bar material from the bundle of bar materials. ..

  BACKGROUND ART Conventionally, various forms are known for a bar material take-out device and a bar material take-out method for taking out one bar material from a bundle of a plurality of bar materials stored in a storage part, and described in, for example, Patent Document 1. As described above, the holding means for holding the rod material stored in the storage portion is provided, and the holding means is a portion above the storage portion and protruding from the storage groove of the storage portion on one end side of the plurality of rod materials. The sandwiching members that are arranged above and opposite to each other are configured to be openable and closable, and between these sandwiching members, a space is formed in which one is tapered and the other is expanded toward the plurality of rods. And the space formed so as to widen toward the end is expanded so that all the bar materials stored in the storage section can be sandwiched, and the clamping means is brought into close proximity to the bar material stored in the storage section, and the space The number of clamping members should be reduced so that the width of When one of the bars is moved relative to the other to close the protruding part of all the bar materials stored in the storage part so as to be sandwiched in the space, the lowermost end of the clamping member is stored in the storage part. It is configured such that the sandwiching means and the accommodating portion are relatively distant from each other in the up-down direction while sandwiching and closing the sandwiching member so as to be below the entire material.

  In the bar material take-out device having such a configuration, when the bar material is taken out from a bundle of a plurality of bar materials, the clamping means closes the clamping member so as to clamp the bar material bundle, and is formed in a tapered shape. One bar is left at the top of the open space, and only this one is sandwiched, so it is extremely easy to use one bar without taking the trouble and complicating the mechanism of the device. It is possible to take out.

Japanese Patent No. 4308794

  However, in the conventional bar material take-out device, after sandwiching a plurality of bar materials stored in the storage portion by the sandwiching means, the sandwiching means is operated so as to be pulled upward from the storage portion while closing the sandwiching means. Uses a sensor or the like to determine whether or not two or more bars are sandwiched. Here, when it is determined that two or more rods are sandwiched and the removal is defective, all the sandwiched rods are once released and returned to the storage unit, and a plurality of rods stored in the storage unit are again stored. The operation is performed so that the bundle of rods is clamped.

  At this time, in the conventional bar material take-out device, the portion of the one end side of the bar material that protrudes from the accommodation groove of the accommodating portion is lifted upward, so as shown in FIG. When the one end side is opened by the bar material retreating amount L after the side is lifted, and the one end side is opened by the bar material releasing operation after it is determined that the bar is unloaded, the bar material is placed on one end side in the longitudinal direction of the storage section. There is a problem that the bar may move and the bar may get on the edge of the storage part, which may hinder an accurate pinching operation.

  Further, in the conventional bar material take-out device, only one bar material taken out by the holding means is taken out by the bar-shaped separating member moving from one end side to the other end side, and is taken out, and the guide portion Although it is fed to a processing machine such as a lathe after being guided by a guide pipe that feeds the bar material, the other end of the bar material that is not clamped by the clamping means is guided first during the separation. Since it falls into the pipe, there is a possibility that the clamping means will not fall into the guide pipe when the rod is released, and there is a problem in stable material supply.

  Further, in the conventional bar material take-out device, since the bar material take-out operation is performed every time a new material is supplied, in addition to the problem that the bar material take-out operation takes time, as described above, When the material is not properly taken out, the sandwiched bar is released and the sandwiching operation is performed again, but during this time, a new material cannot be supplied, which causes a time loss. ..

  Therefore, the present invention is an invention made in view of the above-mentioned problems, and it is possible to reliably perform the re-holding operation even when a removal failure of the bar material occurs, depending on the removal time of the bar material. An object of the present invention is to provide a bar material take-out device and a bar material take-out method capable of reducing time loss and stably supplying a bar material.

  A bar material take-out device according to the present invention is a bar material take-out device for taking out one bar material from a plurality of bar materials, wherein the bar material take-out device stores a plurality of bar materials and supports the bar material from below. It comprises a storage part having a storage groove having a bottom part, and a sandwiching means for sandwiching the bar member supported by the bottom part, and the bar member supported by the bottom part and the sandwiching means are relatively close to each other in the vertical direction. The sandwiching means is arranged above the storage portion and above a portion of one end side of the plurality of rods protruding from the storage groove, and the sandwiching members facing each other can be opened and closed. Between these clamping members, a space is formed in which one is tapered and the other is widened toward the bars, and the space formed wide is supported by the bottom portion. It is possible to sandwich all the bar materials Expanded, the clamping means is brought relatively close to the bar member supported on the bottom portion, and at least one of the clamping members is relatively moved with respect to the other so that the width of the space is narrowed, When the protruding portion of all the bar members supported by the bottom portion is closed so as to be sandwiched in the space, the lowermost end portion of the holding member is located below all the bar members supported by the bottom portion. The holding means and the bottom portion are relatively distant from each other in the vertical direction while sandwiching and closing the holding member, and the holding means has a longitudinal direction of the bar in a longitudinal section of the bar. It is characterized in that it is movable along a direction inclined at a predetermined angle from a direction orthogonal to the direction.

  Further, in the bar material take-out device according to the present invention, the sandwiched bar material is supplied to a guide pipe through a guide part, and the guide part guides the bar material dropped from the clamping member. It has a gate stopper held inside the portion, and the gate stopper can supply the rod to the guide pipe at an arbitrary timing.

  Further, in the bar material take-out device according to the present invention, it is preferable that the gate stopper is assembled so as to be rotatable in the circumferential direction of the longitudinal direction.

  Further, in the bar material take-out device according to the present invention, it is preferable that the holding member is configured to be movable along a direction inclined by 3 ° to 15 ° from a direction orthogonal to the longitudinal direction of the bar material.

  Further, the bar material taking-out method according to the present invention is a bar material taking-out method for taking out one bar material from a plurality of bar materials, and for accommodating a plurality of bar materials and supporting the bar material from below. A storage part having a storage groove having a bottom part is prepared, and the storage part is composed of opposed sandwiching members that can be opened and closed. Between these sandwiching members, one is tapered and the other is directed toward the plurality of bars. A holding means is provided which forms a space which is formed in a divergent shape and which is formed so that the bar member supported by the bottom can be inserted into the space which is formed in a divergent shape, and the holding means is provided above the storage part. And is arranged above one end side of the plurality of rods protruding from the accommodation groove, and the clamping means and the rod supported on the bottom are relatively close to each other and supported on the bottom. The protruding part of the entire bar At least one of the sandwiching members is moved relative to the other so that the sandwiching member is positioned so that the lowermost end of the sandwiching member is positioned below all the bar members supported by the bottom portion, and the sandwiching member is closed. The clamping means is moved in a direction inclined by a predetermined angle from a direction orthogonal to the longitudinal direction of the rod in the longitudinal section of the rod.

  Further, in the rod material take-out method according to the present invention, the sandwiched rod material is supplied to a guide pipe through a guide portion, and the guide portion guides the rod material dropped from the holding member. It is preferable that the gate stopper is held in the guide portion by a gate stopper arranged inside the portion, and the gate stopper supplies the bar material to the guide pipe at an arbitrary timing.

  Further, in the bar material taking out method according to the present invention, it is preferable that the holding member is moved along a direction inclined by 3 ° to 15 ° from a direction orthogonal to the longitudinal direction of the bar material.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be inventions.

  In the bar material take-out device and the bar material take-out method according to the present invention, the sandwiching means is configured to be movable in a longitudinal section of the bar material along a direction inclined at a predetermined angle from a direction orthogonal to the longitudinal direction of the bar material. Therefore, even if one end of the bar is lifted by the holding means, the other end does not move to the one end by the bar retreat amount L, and the bar releasing operation after the determination of the ejection failure causes Even when the one end side is opened, the bar can be returned to the position before the holding. Since the position of the bar after the release does not move, the pinching operation can be performed accurately even when the bar is pinched by the pinching means again.

  Further, according to the bar material take-out device and the bar material take-out method according to the present invention, the bar material can be taken out to the gate stopper provided in the guide portion by the sandwiching means during the bar material processing, and the gate stopper can be taken out. Since the rod material can be charged into the guide pipe in a short time, the time required to introduce a new material can be shortened.

  Further, since the bar material taken out by the holding means is held by the gate stopper provided in the guide portion in the guide portion in a posture substantially parallel to the guide pipe, the gate stopper is rotated to guide the bar material into the guide pipe. It is possible to more stably supply the bar material when supplying the bar material.

FIG. 1 is a perspective view of a bar material supply device including a bar material take-out device according to an embodiment of the present invention. The side view for demonstrating operation | movement of the bar extraction apparatus which concerns on embodiment of this invention. The figure for demonstrating the pinching operation | movement of the bar | rod by the pinching means. The A section enlarged view in FIG. The figure for demonstrating operation | movement of the bar separation device of the bar extraction device which concerns on embodiment of this invention. FIG. 6 is a perspective view for explaining an operation after the bar is pinched by the pinching means of the bar material take-out device according to the embodiment of the present invention. The enlarged view for demonstrating movement of the other end part of a bar by the conventional take-out operation.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of a bar material supply device including a bar material take-out device according to an embodiment of the present invention, and FIG. 2 is a view for explaining an operation of the bar material take-out device according to an embodiment of the present invention. FIG. 4 is a side view, FIG. 3 is a diagram for explaining a pinching operation of the bar by the pinching means, FIG. 4 is an enlarged view of part A in FIG. 3, and FIG. 5 is an embodiment of the present invention. It is a figure for demonstrating operation | movement of the bar | burr isolation | separation apparatus of such a bar | burr take-out apparatus, and FIG. 6 demonstrates operation | movement after pinching of the bar | rod by the pinching means of the bar | burr take-out apparatus which concerns on embodiment of this invention. FIG.

  As shown in FIG. 1, a bar material supply device including a bar material take-out device 1 according to the present embodiment accommodates a plurality of bar materials, and takes out one bar material from the plurality of bar materials and adjoins them. A main body part 2 having a supply part 5 for supplying to a bar material processing device (not shown) such as a lathe, a pair of leg parts 3 for supporting the main body part 2, and provided below the main body part 2 for various operations. The operation unit 4 is provided.

  As shown in FIG. 2, inside the main body 2, a cross-section orthogonal to the longitudinal direction is formed into a substantially square shape, and a base portion B made of a sturdy shaped steel for supporting the entire apparatus, A storage unit 10 that is provided on the upper surface of the base unit B and stores a plurality of bar members W ... W, and a plurality of the storage units 10 that are supported on one end side of the base unit B in the longitudinal direction. A holding device 20 for taking out only one bar W from the bar W ... W, and the bar W that is provided on the side of the base B and the remaining bar W ... A bar material separating and discharging device 30 for separating from W and supplying it to the guide pipe P is provided.

  The storage portion 10 is provided so as to extend along the side edge portion of the upper surface of the base portion B on the side of the bar material separating and discharging device 30, and the bottom portion 11 that supports the bar material W from below and the bar material W are bar materials. In order to prevent the separating and discharging device 30 from collapsing toward the separating and discharging device 30, a plate-shaped stopper 12 attached to a side surface of the bottom portion 11 and a side surface on the opposite side of the bottom portion 11 are formed into a substantially L shape, and the storage portion. It is configured by a thin bar-shaped material supply plate 13 for supplying the material to the plate 10. The storage groove 14 is configured by the bottom portion 11, the stopper 12, and the vertical plate portion 131 attached to the bottom portion 11 of the bar material supply plate 13. The rods W, ..., W are stored so as to be stacked in the storage groove 14, and the tip portion on the one end side where the holding device 20 in the longitudinal direction is present projects outward from the end of the storage groove 14. It is stored in this way (Fig. 6). Further, the bar material supply plate 13 has a bar material guide surface 132 that horizontally extends from the upper end of the vertical plate portion 131 to the side opposite to the bar material separating and discharging device 30.

  Further, in the storage portion 10, the width of the storage groove 14 is formed such that the width on the other end side is wider than the width on the one end side in the longitudinal direction of the bar W provided with the holding device 20. By thus forming the width of the storage groove 14 so as to widen toward the end, it is possible to store the bar materials W ... W at the other end side so that they are not entangled with each other and stored. This makes it easy to take out the material W. However, not limited to the above-described form, the width of the one end side is made the same as the width of the other end side, and a stopper is erected separately in the middle of the width direction of the one end side, and the stopper and the bar material supply plate are vertically aligned. The bar may be housed by inserting one end of the bar between the plate and the plate.

  The holding device 20 is erected on one end side of the base portion B, and a bracket for supporting the holding device 20 and a lower end portion thereof are attached to the bracket, and the holding device 23 is extendably attached for moving up and down. An air cylinder 21 having a rod 22, a holding portion 23 that is moved up and down by the rod 22 and is formed like a scissor for holding the bar W, and a holding member 231 above the holding portion 23. The air cylinder 24 is attached to the upper end of 232 via the link mechanism 233 and opens and closes the holding members 231 and 232.

  The sandwiching portion 23 is formed such that two sandwiching members 231 and 232 each having a tapered tip end are pivotally connected to each other at a fulcrum portion 230 approximately at the center of the width of the storage groove 14. It is attached with the tapered portion facing down. Further, one ends of the links 233 and 234 are pivotally attached to the upper ends of the holding members 231 and 232, respectively, and the other ends of the links 233 and 234 extend in the width direction of the holding portion 23. It is pivotally connected by a connecting portion 235 at the center position.

  Further, the holding portion 23 includes an air cylinder 24 for opening and closing the holding members 231 and 232. The air cylinder 24 is provided with a tube 241 which is formed into a substantially rectangular parallelepiped whose appearance is vertically long, and a cylinder rod 242 which slides inside the tube 241 along the longitudinal direction. The tip of the cylinder rod 242 is attached to the connecting portion 235 of the links 233 and 234 attached to the holding portion 23. When the cylinder rod 242 moves up and down, the sandwiching portion 23 is opened and closed by the sandwiching members 231 and 232 pivoting each other around the fulcrum portion 230. Then, as is clear from this figure, the space formed between the holding members 231 and 232 forms a triangle. That is, the space is formed in a shape in which the upper portion is tapered. In this embodiment, the holding means 23 is moved up and down by the rod 22 and is opened and closed by using the air cylinder and the link mechanism. However, the invention is not limited to this. These operations may be performed by driving the transmission device or by combining a feed screw and a gear.

  The rod material separating / discharging device 30 as the rod material separating / discharging means is attached to the rod 311 (see FIG. 5) extending along the side edge of the base portion B and the rod 311 so as to be inserted therethrough. A cylinder device 31 having a moving body 312 that moves along the moving body 312, a bar material separating and discharging member 32 that is attached to an upper portion of the moving body 312, and is formed by bending a thin plate, and is sandwiched by a sandwiching device 20. A guide portion 33 that guides the bar W of the book to the guide pipe P, and a plate-shaped fall prevention plate 34 that bends in a dogleg to prevent the guided bar W from falling to the opposite side of the guide pipe P. It has and. Then, the bar material separating and discharging member 32 is formed with an inclined surface 321 that is inclined downward toward the outside. The bar material separating / discharging member 32 is not limited to a thin plate member, and may be formed by bending an elongated bar material.

  Further, the guide portion 33 is provided with a gate stopper 40 that is assembled so as to be rotatable in the circumferential direction of the longitudinal direction. The gate stopper 40 is rotatably attached to a rotation shaft 41 along the longitudinal direction, and holds the bar W in the guide portion 33 as shown by a dotted line in FIG. Further, the bar W can be supplied to the guide pipe P at an arbitrary timing by rotating in the direction shown by the solid line in FIG. 2 by a signal from a control unit (not shown).

  The bar material separating / ejecting device 30 supports one bar material sandwiched by the clamping device 20 from the lower side of the inclined surface 321 of the bar material separating / ejecting member 32, and in the longitudinal direction (direction penetrating the plane of FIG. 2). Even if it is slid along and is intertwined with the remaining rods W ... W in the storage part, it is completely separated from these and supplied to the guide pipe P of the adjacent rod feeder.

  The gate stoppers 40 are provided at predetermined intervals along the longitudinal direction of the bar W as shown in FIG. Since the gate stoppers 40 are provided at predetermined intervals in this way, the rod W discharged to the guide portion 33 is arranged in a posture substantially parallel to the guide pipe P, and then the rod is put into the guide pipe P. Since it is possible to supply the bar material, it is possible to stably supply the bar material.

  Further, while the bar processing device is processing, the bar to be processed next can be taken out from the storage groove 14 to the gate stopper 40 by the holding device 20, so that the gate stopper 40 can be opened at any timing. The bar W can be supplied to the guide pipe P simply by rotating, and the introduction time can be shortened.

  Next, with reference to FIG. 2 to FIG. 6, a detailed description will be given of the action of the holding device 2 when taking out only one bar W from the plurality of bars W ... W stored in the storage section. ..

  First, the rod 22 of the holding device 20 is moved down so that one end side of the rod W of the storage groove 14 in which the plurality of rods W ... It is lowered to a position protruding from the outside, and the tip end portions of the plurality of rods W ... W are accommodated in the tapered space formed between the holding members 231 and 232. Next, the cylinder rod 242 of the air cylinder 24 is slid so as to be housed inside the tube 241, and the plurality of rods W ... Gradually rise. Then, the bar members W, ... W located on the upper side and contacting the holding members 231 and 232 gradually move upward and follow the shape of the space formed between the holding members 231 and 232 ( In this case, it is formed into a triangle). Further, when the sandwiching portion 23 is gradually raised while closing the sandwiching members 231, 232, the lower bar material W ... W is dropped and returned to the storage portion 10, and several rods near the top of the tapered space. Bars W ... W are left. Finally, only one bar W remains at the apex, and this one bar W is clamped at the top of the tapered space formed between the clamping members 231 and 232. After that, the lower part of the sandwiching portion 23 is swung in the direction of the guide pipe P so that the sandwiched bar W can be easily dropped onto the guide surface 33. Then, finally, the moving body 312 having the bar material separating / discharging member 32 is moved along the rod 311 from one end side having the holding device 20 to the other end side to move this one bar material W into another plurality. Is separated from the bar material W ... W, discharged from the bar material removing device 1, and supplied to the guide pipe P (see FIGS. 5 and 6).

  As shown in FIG. 3, the clamping device 20 clamps one end of the bar W and then, in the longitudinal cross section of the bar W, a direction inclined by a predetermined angle α from a direction Z orthogonal to the longitudinal direction of the bar. Move along. Since the holding device 20 moves along the direction inclined by the predetermined angle α from the vertical direction of the bar material in this manner, when one end side of the held bar material W is lifted by the holding device 20, it is shown in FIG. As described above, since the amount of movement of the other end of the bar to the one end with the lifting of the bar W can be suppressed to a minimum, a pinching failure of a plurality of bars occurs and the bar is pinched again. Even when it is performed, the released bar can be returned to the correct position, and the stable pinching operation can be performed. It should be noted that the predetermined angle α is preferably the length of the bar W centered on the other end so that the bar W can make a circular motion with the other end of the clamped bar W as a base point. It is desirable to lift in the tangential direction of a circle having a radius of .alpha., But in consideration of the bending of the bar W due to its own weight and the like, it is preferable to set it to about 3 to 15.degree.

  Further, the bar material take-out device 1 according to the present embodiment judges whether the number of bar materials or the thickness is right or wrong so that the clamping unit reliably clamps only one bar material having a desired thickness, and makes a mistake. If it is, it is controlled to redo the pinching of the bar. Various configurations can be adopted to determine whether the rod is properly clamped. For example, a configuration in which a parallel light linear sensor senses whether the rod W is correctly clamped may be employed. Absent. The sensor includes a light projecting sensor and a light receiving sensor. Among the laser light projected from the light projecting sensor by projecting laser light having a predetermined width from the light projecting sensor to the light receiving sensor, the light projecting sensor This can be determined by measuring the light blocking amount of the laser beam blocked by the object between the light receiving sensor and the light receiving sensor, and outputting this as a voltage to measure the width of the object.

  Here, when it is determined that the predetermined bar is not clamped, the clamped bar W ... W is released and returned to the storage portion (see FIG. 1), and the bar W The pinching is redone to ensure that only one bar W is pinched.

  The sensing method is not limited to the one using the parallel light linear sensor, and other sensors such as a laser micrometer, an optical sensor and a magnetic sensor may be used.

  In addition, in the above-mentioned embodiment, although both of the holding members of the holding means move, the present invention is not limited to this, and only one of the holding members may move. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 bar extraction device, 2 main body part, 3 leg part, 4 operation part, 10 storage part, 20 clamping device, 21, 24 air cylinder, 22 rod, 23 clamping means (clamping part), 230 fulcrum shaft, 231, 232 Clamping member, 30 bar material separating and discharging device, 31 cylinder device, 32 bar material separating and discharging member, 321 inclined surface, 40 gate stopper, B base part, W bar material, P guide pipe.

Claims (7)

In a bar material take-out device for taking out one bar material from a plurality of bar materials,
The rod material take-out device includes a storage portion having a storage groove having a bottom portion for storing a plurality of rod materials and supporting the rod material from below, and a sandwiching means for sandwiching the rod material supported by the bottom portion,
The bar member supported by the bottom portion and the holding means are configured to be relatively close to each other in the vertical direction,
The sandwiching means is arranged above the housing portion and above a portion of the one end side of the plurality of bars protruding from the housing groove, and the sandwiching members facing each other can be opened and closed.
Between these sandwiching members, a space is formed in which one is tapered and the other is expanded toward the plurality of rods, and the expanded space is supported by the bottom portion. It can be expanded so that all bars can be sandwiched,
The sandwiching means relatively approaches the bar member supported by the bottom portion and relatively moves at least one of the sandwiching members relative to the other so that the width of the space is narrowed. When the protruding portion of all the supported rod members is closed so as to be sandwiched in the space, the lowermost end of the holding member is located below all the rod members supported by the bottom portion. ,
While closing the holding member, the holding means and the bottom portion are configured to be relatively distant from each other in the vertical direction,
In the longitudinal section of the bar, the clamping means is configured to be movable along a direction inclined by a predetermined angle from a direction orthogonal to the longitudinal direction of the bar, and a bar extracting device. The bar material extracting device according to claim 1,
The sandwiched bar is supplied to a guide pipe through a guide section,
The guide portion has a gate stopper for holding the rod member dropped from the holding member in the guide portion,
The gate stopper supplies the bar material to the guide pipe at an arbitrary timing. The bar material take-out device according to claim 2,
The rod removing device is characterized in that the gate stopper is assembled so as to be rotatable in the circumferential direction of the longitudinal direction. The bar material take-out device according to any one of claims 1 to 3,
The bar material take-out device, wherein the holding member is configured to be movable along a direction inclined by 3 ° to 15 ° from a direction orthogonal to the longitudinal direction of the bar material. A method for taking out a bar from a plurality of bars, comprising:
Prepare a storage unit that stores a plurality of rods and has a storage groove with a bottom that supports the rods from below,
It comprises openable and closable opposed clamping members, one of which is tapered between the clamping members, and the other of which forms a divergent space toward the plurality of bars, and divergently expands. The holding space is prepared so that the bar member supported by the bottom portion can be held.
The sandwiching means is arranged above the accommodating portion and above a portion of the one end side of the plurality of bars protruding from the accommodating groove,
The clamping means and the bar supported on the bottom are relatively brought close to each other, and at least one of the clamping members is opposed to the other so as to clamp the protruding portion of the entire bar supported on the bottom. And relatively move to position the lowermost end of the sandwiching member below all of the bars supported by the bottom,
A method for taking out a rod, wherein the holding member is moved in a direction inclined by a predetermined angle from a direction orthogonal to the longitudinal direction of the rod in the longitudinal cross section of the rod while closing the holding member. The method for taking out a rod according to claim 5,
The sandwiched bar is supplied to a guide pipe through a guide section,
In the guide portion, the bar member dropped from the holding member is held in the guide portion by a gate stopper arranged in the guide portion,
The said gate stopper supplies the said bar material to the said guide pipe at arbitrary timing, The bar material extraction method characterized by the above-mentioned. The method for taking out a rod according to claim 5 or 6,
The bar-picking method, wherein the holding member is moved along a direction inclined by 3 ° to 15 ° from a direction orthogonal to the longitudinal direction of the bar.

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