JP6015980B2 - Bar feeder and bar processing system - Google Patents

Description

  The present invention relates to a bar supply machine and a bar processing system, and more particularly to a bar supply machine and a bar processing system for feeding a bar to a bar processing machine along a predetermined feed axis.

Conventionally, as a bar feeder for feeding a bar to a bar processing machine along a predetermined feeding axis, for example, as described in Patent Document 1, a material shelf on which a bar is placed It is known that a bar is taken out one by one and fed to a bar processing machine on a feed axis by a feed arrow part.
In such a conventional bar feeder, the material shelf on which the bar is placed, the guide rail for guiding the bar taken out from the material shelf along the feeding axis, and the guide rail The feed arrow part that is arranged parallel to the upper or lower side and feeds the bar material to the bar material processing machine along the feed axis, and the guide rail and the feed arrow part are alternately positioned on the feed axis. , A moving mechanism for moving the guide rail and the feed arrow unit integrally in the vertical direction, and a vertical distance adjusting means for adjusting the moving distance of the guide rail and the feed arrow unit.
According to such a conventional bar feeder, the guide rail and the feed arrow are moved alternately in the vertical direction by the moving mechanism, so that the guide rail and the feed arrow are alternately positioned on the feed axis. Changing the size of the bar changes the height of the central axis of the bar received in the guide rail, but the feed arrow and the guide rail can move together, so it can be moved once by the vertical distance adjustment means. With this adjustment operation, the moving distance in the vertical direction of the moving mechanism is changed, and the central axis of the bar can be made to coincide with the feeding axis. Therefore, when changing the size of the bar material, it is only necessary to adjust the moving distance of the moving mechanism by the vertical distance adjusting means, and the size changing work of the bar material feeder becomes easy and can be performed in a short time. ing.

  Furthermore, in the above-described conventional bar processing machine, when feeding the bar taken out from the material shelf to the bar processing machine along the feeding axis, first, the central axis of the bar on the guide rail and After feeding the bar on the guide rail to the bar processing machine side by the primary feed member along the feed axis with the feed axis aligned, the central axis of this primary fed bar With the feed arrow, the bar is secondary fed to the bar processing machine with the feed arrow in a state in which the center axis of the feed arrow is matched.

JP 2007-276102 A

However, in the above-described conventional bar feeder, each of the feed drive that performs primary feed and the feed drive that performs secondary feed is driven by a drive unit such as an individual servo motor. In order to efficiently feed the material processing machine, there is a problem that both the primary feed and the secondary feed must be adjusted individually. Therefore, these adjustment operations are also complicated, and it takes time to start the bar processing operation, which also affects the production efficiency.
In addition, the conventional bar feeder requires a large number of parts for the internal mechanism and structure, and also requires space to accommodate them, so the manufacturing cost can be reduced by reducing the number of parts and making the structure simple. However, in consideration of the limited installation space, there has been a conventionally requested problem of how to reduce the size of the entire bar feeder and efficiently feed the bar to the bar processing machine.

  Therefore, the present invention has been made to solve the above-described required problems of the prior art, and the manufacturing cost is reduced by reducing the number of parts to make the structure simple, and the bar is replaced with the bar. An object of the present invention is to provide a bar feeder that can efficiently feed a processing machine.

In order to achieve the above object, the present invention provides a bar feeder for feeding a bar to a bar processing machine along a predetermined feed axis, and a material shelf on which the bar is placed. And a main guide rail portion that guides the bar supplied from the material shelf along a predetermined feeding axis, and is arranged in parallel above or below the main guide rail portion, on the main guide rail portion. A feed arrow that feeds the bar to the bar machine along the feed axis, and a lift mechanism that integrally lifts and lowers the main guide rail and the feed arrow, the main guide rail Between the primary feed height position where the central axis of the upper bar and the feed axis match, and the secondary feed height position where the center axis of the feed arrow and the feed axis match. The guide rail part and the above-mentioned feed arrow part are moved up and down integrally, and the primary feed mode and secondary feed An elevating mechanism provided with a switching means for switching and over de,
When the main guide rail part is at the primary feed height position, the bar processing machine moves to the bar processing machine side and moves the bar on the main guide rail part along the predetermined feed axis. When the slider portion to be moved to the side and the main guide rail portion are at the primary feed height position, the slider portion is moved to the bar processing machine side so that the bar on the main guide rail portion is When the primary feed mode is sent to the bar processing machine side along a predetermined feed axis, and the primary feed mode is completed, when the feed arrow portion is at the secondary feed height position, the feed arrow portion A feed driving unit that executes a secondary feed mode that moves the bar to the bar processing machine side and sends the bar after completion of the primary feed mode to the bar processing machine side along the predetermined feeding axis, and Control unit for controlling the operation of the feed drive unit and the lifting mechanism unit The feed drive unit includes a single motor that is used both when performing feed drive in the primary feed mode and when performing feed drive in the secondary feed mode. The control unit is controlled to be capable of variable speed , and the switching mechanism of the lifting mechanism unit includes a primary feed blade unit that supports the slider unit, and a secondary feed blade unit that supports the feed arrow unit. A blade holding portion that holds the primary feed blade portion and the secondary feed blade portion so as to be movable up and down, and the switching means is configured so that the lift mechanism portion moves the secondary feed blade portion into the secondary feed blade portion. The primary feed blade and the blade holder are connected to each other by raising the primary feed height position, and the secondary feed blade and the blade holder are disconnected from each other. Switch to mode And the elevating mechanism lowers the secondary feed blade portion to the secondary feed height position so that each of the primary feed blade portion and the secondary feed blade portion and the above It is characterized in that the blade holding part is connected and switched to the secondary feed mode .
In the present invention configured as described above, a single motor which is a common feed drive unit in both cases of feed drive in the primary feed mode and feed drive in the secondary feed mode in the feed drive unit In combination, the motor can be controlled by the control unit so that the speed can be changed, so that the bar supplied from the material shelf is automatically and efficiently fed to the bar processing machine along a predetermined feed axis. Can be sent. In addition, the number of parts can be reduced and the structure can be simplified as compared to the case where separate motors are used for each of the feed drive in the primary feed mode and the feed drive in the secondary feed mode. . Furthermore, the whole bar feeder can be downsized.

In the present invention, preferably, it further includes an elevating drive unit that drives the elevating mechanism unit, and a material shelf position adjusting unit that adjusts a relative position of the material shelf with respect to the main guide rail unit, Before starting the primary feed mode, the control unit controls the elevating drive unit and the material shelf position adjusting means according to the input of the diameter of the bar to be processed, and the main guide rail unit and The feed arrow is positioned at the primary feed height position so that the central axis of the bar on the main guide rail is aligned with the feed axis.
In the present invention configured as described above, the control unit controls the elevating drive unit and the material shelf position adjusting means according to the input of the diameter of the bar to be processed before starting the primary feed mode. The main guide rail and feed arrow can be positioned at the primary feed height position so that the center axis of the bar on the main guide rail can be aligned with the feed axis. The operation of supplying the bar to the section and the positioning operation of the bar in which the central axis of the bar coincides with the feeding axis can be performed efficiently. Therefore, irrespective of the diameter of the bar to be processed, it is possible to quickly and efficiently perform the supply of the bar from the material shelf to the main guide rail and the positioning of the bar with respect to the feed axis. In addition, since the control unit controls the driving of the elevating drive unit, switching between the primary feed mode and the secondary feed mode by the switching unit of the elevating mechanism unit can be performed efficiently, so that the material is supplied from the material shelf. The bar can be automatically and efficiently fed to the bar processing machine along a predetermined feeding axis. Furthermore, it is possible to suppress the impact on the bar when the bar is supplied from the material shelf to the main guide rail, and to suppress the noise of the bar feeder generated by the impact of the bar.

In the present invention, preferably, further, an auxiliary guide provided between the main guide rail portion and the bar processing machine for guiding the bar fed from the main guide rail portion to the bar processing machine. A rail portion, an engagement connecting portion that is provided on the main guide rail portion and is integrally moved up and down together with the main guide rail portion, and is connected to the auxiliary guide rail portion so as to be disengageable, and the auxiliary guide rail portion. A stopper portion for fixing the height position, and the engagement connecting portion is in the state in which the main guide rail portion is raised before the primary feed mode is first executed. In the state where the auxiliary guide rail portion is raised by engaging and connecting to the rail portion, and the auxiliary guide rail portion is fixed by the stopper portion, the auxiliary guide rail portion is lowered when the main guide rail portion is lowered. To release the engagement connection between the rail portion lowered with the main guide rail.
In the present invention configured as described above, when the main guide rail portion is raised in a state before the primary feed mode is first executed, the engagement connecting portion provided in the main guide rail portion is the main guide. The auxiliary guide rail part can be raised together with the rail part and engaged with the auxiliary guide rail part, and the auxiliary guide rail part can be raised to a position that coincides with the primary feed height position of the main guide rail part. The portion can be fixed at a position coinciding with the primary feed height position of the main guide rail portion. Therefore, for example, even if a relative distance between the main guide rail portion of the bar feeder and the bar processing machine occurs in a situation where the bar feeder cannot be installed close to the bar processing machine, The bar fed from the guide rail can be reliably fed to the bar processing machine via the auxiliary guide rail. In addition, in a state where the auxiliary guide rail portion is fixed by the stopper portion, when the main guide rail portion is lowered, the engagement connecting portion releases the engagement connection with the auxiliary guide rail portion and is lowered together with the main guide rail portion. Maintain the height of the auxiliary guide rail after the start of the primary feed mode at the primary feed height of the main guide rail where the center axis of the bar on the main guide rail matches the feed axis. In addition, since the bar on the auxiliary guide rail portion can be secondarily fed by the feed arrow portion even in the secondary feed mode, the subsequent primary feed mode and secondary feed mode are executed more reliably and efficiently. be able to. Therefore, the bar supplied from the material shelf can be efficiently and automatically fed to the bar processing machine along the predetermined feeding axis.

In the present invention, preferably, further, a bar tip detecting means for detecting a tip of a bar fed to the bar processing machine side along the predetermined feed axis during execution of the primary feed mode. The control unit controls the operation of the feed driving unit based on information detected by the bar tip detection unit.
In the present invention configured as described above, the bar tip detecting means detects the bar tip fed to the bar processing machine side along the predetermined feed axis during execution of the primary feed mode. Since it can be detected, it can be confirmed whether or not the bar fed to the bar machine during the primary feed mode has passed through the bar tip detection means. The control unit can control the operation of the feed driving unit based on the detection information by the unit detecting means. Therefore, the bar supplied from the material shelf can be efficiently and automatically fed to the bar processing machine along the predetermined feeding axis.

In the present invention, preferably, the control unit moves the slider unit to the rear end of the bar on the main guide rail before starting the primary feed mode of the bar on the main guide rail. The feed drive unit is controlled so as to be positioned in advance, and the feed rate until the slider unit moves to the rear end of the bar is determined by the leading end of the bar from the start of the primary feed mode. Is set to a speed faster than the feed speed until the bar tip end detecting means detects the above.
In the present invention configured as described above, before starting the primary feed mode of the bar on the main guide rail part, the primary drive mode is started for the slider part by controlling the feed drive part by the control part. To the rear end of the bar on the main guide rail at a speed faster than the feed speed until the bar tip is detected by the bar tip detection means, and at the start of the primary feed mode Since it can be previously positioned at the rear end portion of the bar on the main guide rail portion, it is possible to quickly shift to execution of the subsequent full-fledged primary feed mode. Also, until the primary feed mode is started, the slider part is moved at a relatively fast feed speed, and until the leading end of the bar is detected by the bar tip detecting means after starting the primary feed mode, By moving the slider part at a relatively slow speed, it is possible to increase the precision with which the bar end detection means detects the bar end, so that the bar can be fed efficiently to the bar processing machine. Can do.

Furthermore, this invention is a bar material processing system provided with the said bar material supply machine and the bar material processing machine which processes the bar material supplied from this bar material supply machine.
In the present invention configured as described above, the bar supplied from the material shelf of the bar supply machine can be automatically and efficiently fed to the bar processing machine along a predetermined feeding axis. A bar processing system can be provided.

  According to the bar feeder of the present invention, the manufacturing cost can be reduced by reducing the number of parts to make the structure simple, and the bar can be efficiently fed to the bar processing machine.

It is a whole front view showing a bar feeder according to one embodiment of the present invention and a bar processing system provided with the same. It is a top view which shows the bar feeder by one Embodiment of this invention. FIG. 3 is a side view partially broken so that a part of the inside of a bar feeder according to an embodiment of the present invention seen along line III-III in FIG. 2 can be seen. FIG. 4A shows a first operation state of the bar feeder according to an embodiment of the present invention (a state before starting preparation for the primary feed mode, or a center axis of the feed arrow and the bar processing machine FIG. 4B is a side view of the main part viewed from the front side in a state in which the center axis of the spindle coincides with the center axis line of the spindle from the start to the completion of the secondary feed mode. It is the front view seen along the bb line in (a). FIG. 5 (a) shows a second operation state of the bar feeder according to an embodiment of the present invention (after the first operation state, preparation for the primary feed mode is started, and the material handling section is the main guide rail. FIG. 5B is a front view seen along the line bb in FIG. 5A. FIG. 5B is a side view of the main part viewed from the front side. is there. FIG. 6 (a) shows a third operation state of the bar feeder according to an embodiment of the present invention (after the second operation state, the main guide rail and the feed arrow are started to rise and one of the material shelves is shown. FIG. 6 is a side view of the main part viewed from the front side in a state in which the bar of the book is wound on the main guide rail and the next bar is prevented from rolling on the main guide rail. (B) of FIG. 7 is the front view seen along the bb line in (a) of FIG. FIG. 7A is a diagram illustrating a fourth operation state of the bar feeder according to the embodiment of the present invention (after the third operation state, the material handling portion further advances toward the side close to the main guide rail, FIG. 8 is a side view of a main part in a state in which a single bar is guided to the center of the main guide rail and the main guide rail and the feed arrow continue to rise, as viewed from the front side. ) Is a front view seen along line bb in FIG. FIG. 8A shows a fifth operation state of the bar feeder according to one embodiment of the present invention (after the fourth operation state, the central axis of the bar on the main guide rail and the bar processing machine FIG. 8B is a side view of the main part viewed from the front side in a state where the central axis of the spindle coincides and the primary feed mode of the bar by the slider is started, and FIG. 8B is a side view of FIG. It is the front view seen along line bb. FIG. 9A shows a sixth operation state of the bar feeder according to an embodiment of the present invention (after the fifth operation state, the material handling unit moves back to the initial position, and the central axis of the feed arrow It is the side view which looked at the principal part from the front side in the state where the descent of the main guide rail and the feed arrow starts toward the first operation state in which the central axis of the spindle of the bar processing machine coincides. 9B is a front view seen along the line bb in FIG. 9A. Each of (a) and (b) of FIG. 10 is a portion showing a state during execution of the primary feed mode and before detection of the bar material tip in the bar material tip detection device of the bar material feeder according to the embodiment of the present invention. An enlarged plan view and a partially enlarged front view are shown respectively. In the bar tip detector of the bar feeder according to one embodiment of the present invention, a partially enlarged front view showing a state when the primary feed mode is being executed and the bar tip is detected. The bar front end detection apparatus of the bar feeder by one Embodiment of this invention WHEREIN: The partial expanded front view which shows a state when primary feed mode is complete | finished and it transfers to secondary feed mode is shown. FIG. 13A shows a connection state between the front end portion of the main guide rail and the rear end portion of the auxiliary guide rail by the engagement connection block in the primary feed mode of the bar feeder according to the embodiment of the present invention. A partial enlarged front view is shown, and FIG. 13B is a side view of FIG. 13A as viewed from the bar processing machine side.

Hereinafter, a bar feeder according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, FIG. 1 is an overall front view showing a bar feeder according to an embodiment of the present invention and a bar processing system including the same, and FIG. 2 shows a bar feeder according to an embodiment of the present invention. FIG. 3 is a side view partially broken so that a part of the inside of the bar feeder according to the embodiment of the present invention can be seen along the line III-III of FIG. 2. is there.
As shown in FIGS. 1, 2 and 3, a bar feeder 1 according to an embodiment of the present invention is incorporated in a part of a bar processing system 2 and installed in the bar processing system 2. Is installed adjacent to the bar processing machine 4.

The bar processing machine 4 is, for example, a spindle-fixed NC lathe, a spindle stock 6 having a spindle A1 that coincides with the central axis of a spindle (not shown) of the lathe, and a spindle stock 6 supported by the spindle stock 6 And a processing section (not shown) for processing the bar B.
The bar feeder 1 supplies the bar B to the bar processing machine 4 one by one along the feeding axis C1 that coincides with the main axis A1.
In addition, since the bar B is supplied toward the bar processing machine 4 in the bar supply machine 1, in this embodiment, in order to simplify explanation, the bar supply machine 1 uses the bar processing machine 4 from the bar processing machine 4. The far side is referred to as “upstream side” or “rear side”, and the side closer to the bar processing machine 4 is referred to as “downstream side” or “front side”.

Next, as shown in FIGS. 1, 2, and 3, the bar feeder 1 includes, as a part of its main part, a material shelf 8 on which the bar B before being processed is placed, A main guide rail 10 which is arranged in a longitudinal direction so as to guide the bar B supplied from the material shelf 8 along a predetermined feeding axis C1 and has a substantially V-shaped cross section, and The feed bar 12 is arranged in parallel above the main guide rail 10 and feeds the bar B on the main guide rail 10 to the bar processing machine 4 side along the feed axis C1.
The bar feeder 1 includes a lift device 14 (details will be described later) that integrally lifts and lowers the main guide rail 10 and the feed arrow 12 as a part of the main portion thereof. A primary feed height position P1 that matches the center axis C2 of the material B and the feed axis C1, and a center axis C3 and a feed axis C1 of the feed arrow 12 that are positioned below the primary feed height position P1 and The main guide rail 10 and the feed arrow 12 can be moved up and down integrally with the secondary feed height position P2 that coincides with each other.
Furthermore, the bar feeder 1 presses the rear end of the bar B on the main guide rail 10 by moving to the bar processing machine 4 side when the main guide rail 10 is at the primary feed height position P1. The slider 16 that moves the bar B to the bar processing machine 4 side along the feeding axis C1 is provided as a part of the main part.

Next, as shown in FIGS. 1, 2, and 3, the bar feeder 1 includes a feed drive device 18 and a controller 20 that controls the operation of the feed drive device 18 and the lifting device 14. As a part.
The feed drive device 18 mainly includes a single feed drive motor 22 such as a servo motor used in both cases of feed drive in the primary feed mode M1 and feed drive in the secondary feed mode M2. As part of the department.
Further, the controller 20 is connected to an operation panel 24 (see FIG. 3) for inputting material information such as the diameter of the bar B to be processed, and the controller 20 that has received a signal input to the operation panel 24. In response to the received signal, the operation of the related equipment of the bar feeder 1 is controlled.
In particular, the feed drive motor 22 moves the slider 16 to the bar processing machine 4 side when the main guide rail 10 is at the primary feed height position P1 by the control of the lifting device 14 by the controller 20. The primary feed mode M1 for feeding the bar B on the bar 10 to the bar processing machine 4 side along the feed axis C1 can be executed. Further, after the primary feed mode M1 is completed, when the feed arrow 12 is at the secondary feed height position P2 lower than the primary feed height position P1 by the control of the lifting device 14 by the controller 20, the feed arrow 12 is It is possible to execute the secondary feed mode M2 that moves to the bar processing machine 4 side and feeds the bar B after completion of the primary feed mode M1 to the bar processing machine 4 side along the feed axis C1. It has become.

  Further, as shown in FIGS. 1, 2 and 3, the material shelf 8 of the bar feeder 1 has a shelf portion 26 located on the distal side with respect to the main guide rail 10 and a feeding axis C1. A plurality of shelf frame portions 28 that are fixedly arranged in an orthogonal direction and connect the shelf plate portion 26 and the main guide rail 10, and reciprocating motion that moves forward and backward from the shelf plate portion 26 toward the main guide rail 10. In order to enable this, a material handling part 30 is provided so as to be slidable with respect to each shelf frame part 28. The bar feeder 1 includes a shelf drive motor 32 that drives the material handling unit 30, and the controller 20 controls the drive of the shelf drive motor 32 so that the material handling unit 30 can reciprocate with respect to the main guide rail 10. It is feasible.

  As shown in FIGS. 1 and 2, the bar feeder 1 includes an auxiliary guide rail 34 provided between the main guide rail 10 and the headstock 6 of the bar processing machine 4, and this auxiliary guide. With the rail 34, the bar B fed from the main guide rail 10 side can be guided to the bar processing machine 4. The details of the connecting portion between the auxiliary guide rail 34 and the main guide rail 10 will be described later.

Below, with reference to FIGS. 1-9, the principal part of the bar feeder of this embodiment is demonstrated more concretely.
First, FIG. 4 (a) shows a first operation state of the bar feeder according to the embodiment of the present invention (a state before starting preparation for the primary feed mode, or the central axis and bar of the feed arrow FIG. 4B is a side view of the main part viewed from the front side in a state in which the center axis of the spindle of the processing machine coincides with and starts the secondary feed mode. It is the front view seen along the bb line in 4 (a).
As shown in FIGS. 1 to 4 (a) and 4 (b), the lifting device 14, which is a part of the main part of the bar feeder 1, is provided at substantially the center and below in the longitudinal direction of the main guide rail 10. A screw jack 36 and a lift drive motor 38 that drives the screw jack 36 to rotate up and down are provided.
Moreover, the upper end part of the screw jack 36 and the lower end part of the main guide rail 10 are connected by the lifting member 40 mentioned later.
Further, regarding the rotation of the lift drive motor 38, the controller 20 performs numerical control using an encoder (not shown), whereby the height of the upper end portion of the screw jack 36 is positioned, and the screw jack 36 is lifted and lowered. Accordingly, the lifting member 40, the main guide rail 10, and the slider 16 are moved up and down, so that the height of the main guide rail 10 is determined.

Next, as shown to (a) and (b) of FIGS. 1-4, the raising / lowering apparatus 14 performs the primary feed which makes the center axis C2 and the feed axis C1 of the bar B on the main guide rail 10 correspond. The main guide rail 10 and the feed arrow 12 are moved up and down integrally between the height position P1 and the secondary feed height position P2 where the central axis C3 of the feed arrow 12 and the feed axis C1 coincide with each other. A feed mode switching unit 42 that switches between the mode M1 and the secondary feed mode M2 is provided.
The feed mode switching unit 42 is integrally provided on the front side of the slider 16 and extends substantially in parallel above the feed arrow 12 and a primary feed blade 44 that cantilever-supports the front end of the slider 16. A pair of support frame members 46a and 46b (see FIG. 2) that support both ends of the fixed shaft 45; a linear bearing unit 47 that is slidably attached to the fixed shaft 45 in the longitudinal direction (front-rear direction); A secondary feed blade portion 48 fixed to the lower side of the linear bearing unit 47 and fixedly supporting the rear end portion of the feed arrow 12 from above, and a blade holding portion for holding the primary feed blade portion 44 so as to be movable up and down. 50.

The support frame members 46a and 46b are indirectly connected to the lifting member 40, and can be moved up and down as the screw jack 36 is moved up and down, so that the support frame members 46a and 46b are fixed to the support frame member 46a. As the screw jack 36 moves up and down, the fixed shaft 45, the linear bearing unit 47 attached thereto, the secondary feed blade 48 attached thereto, and the feed arrow 12 attached thereto are also raised. Can be moved up and down.
Further, in FIGS. 4A and 4B, the state before starting the preparation of the primary feed mode M1, or the center axis C3 of the feed arrow 12 and the spindle (not shown) of the bar processing machine 4 are shown. Although the state from the start of the secondary feed mode M2 to the completion after the coincidence with the central axis C4 is shown, when the main guide rail 10 and the feed arrow 12 are at the secondary feed height position P2, the primary feed mode M2 is shown. A part of the feeding blade portion 44 and the secondary feeding blade portion 48 are inserted into the blade holding portion 50, and the primary feeding blade portion 44, the secondary feeding blade portion 48, and the blade holding portion 50 are connected. It is like that. More specifically, a long hole 44a formed so as to extend in the vertical direction substantially at the center of the primary feed blade portion 44 is connected to the connection protrusion 50a of the blade holding portion 50 and the secondary feed blade 50a. The connection notch 48 a of the part 48 is connected to the connection protrusion 50 a of the blade holding part 50.
On the other hand, as will be described in detail later, when the main guide rail 10 and the feed arrow 12 are at the primary feed height position P1, only a part of the primary feed blade portion 44 is inserted into the blade holding portion 50, and the primary feed. While only the blade portion 44 is connected to the blade holding portion 50, the secondary feed blade portion 48 is positioned above the blade holding portion 50 so as not to be connected to the blade holding portion 50.
That is, the feed mode switching unit 42 can switch between the primary feed mode M1 and the secondary feed mode M2 by switching the secondary feed blade portion 48 and the blade holding portion 50 to a non-connected state or a connected state. It is like that.

Further, as shown in FIGS. 1, 2, and 4 (a) and 4 (b), the blade holding unit 50 includes a timing belt 52 and a carriage that are driven by the feed drive motor 22 of the feed drive device 18. 54 is fixed to both sides. The carriage 54 is fixed inside the bar feeder 1 and is disposed so as to be able to travel along the upper surface of a traveling rail 56 that extends in the front-rear direction in parallel with the main guide rail 10.
That is, the carriage 52 can reciprocate so as to move forward and backward toward the bar processing machine 4 integrally with the carriage 52 and the timing belt 52 in accordance with the rotation direction of the timing belt 52 by the feed drive of the feed drive motor 22. It can be done.
Therefore, although details will be described later, when the feed mode switching unit 42 is in the primary feed mode M1, the slider 16, the primary feed blade 44, and the blade holder 50 move integrally with the timing belt 52 and the carriage 54. The secondary feed blade 48, the feed arrow 12, and the linear bearing unit 47 that are not connected to the blade holder 50 are not allowed to move (forward and backward) and can be moved to the same position. It has come to stay in.
On the other hand, when the feed mode switching portion 42 shown in FIGS. 4A and 4B is in the secondary feed mode M2, the slider 16, the primary feed blade portion 44, the blade holding portion 50, and the two connected thereto are connected. The next feed blade 48, the feed arrow 12, and the linear bearing unit 47 are moved integrally (forward and backward) with the timing belt 52 and the carriage 54.
Note that the height position of the blade holder 50 is constant regardless of the lifting and lowering of the lifting device 14 associated with each feed mode M1, M2, and only the forward and backward positions of the blade holder 50 are the feed modes M1, M2. It is changed according to the operation of the feed driving device 18 of M2.

Incidentally, in the first operation state O1 of the bar feeder 1 shown in FIGS. 4A and 4B, it is a state before the preparation for the primary feed mode M1 is started, or the feeding axis C1. Since the center axis C3 of the feed arrow 12 and the center axis C4 of the spindle (not shown) of the bar processing machine 4 coincide with each other, the secondary feed mode M2 is started and completed. The screw jack 36 of the apparatus 14 is moved down most, and the bar B can be fed to the bar processing machine 4 side by the feed arrow 12.
Further, in the first operation state O1, the material handling unit 30 has a position where the front surface on the main guide rail 10 side is substantially flush with the side surface on the material shelf 8 side of the main guide rail 10 (hereinafter, “ In the initial position)).

Next, (a) of FIG. 5 shows the second operation state of the bar feeder according to the embodiment of the present invention (after the first operation state, preparation for the primary feed mode is started, FIG. 5B is a side view of the main portion viewed from the front side in a state where the main guide rail is advanced to the side close to the main guide rail, and FIG. 5B is viewed along the line bb in FIG. It is a front view.
As shown to (a) and (b) of FIG. 5, in the 2nd operation state O2 of the bar feeder 1, after the 1st operation state O1 shown to (a) and (b) of FIG. Preparation for the primary feed mode M1 is started, the shelf drive motor 32 is driven by the control of the controller 20, and the tip 30a of the material handling unit 30 of the material shelf 8 is advanced to the side close to the main guide rail 10. ing. Thereby, the bar B placed on the material shelf 8 is moved to the main guide rail 10 side as a whole. At this time, the tip 30a of the material handling part 30 is inserted into a gap (see FIG. 2) adjacent to each other in the longitudinal direction of the main guide rails 10, so that the material handling part 30 and the main guide rail 10 come into contact with each other. Such interference is prevented.
In the second operation state O2, the screw jack 36 of the lifting device 14 is not particularly raised, but a part of the single bar B1 closest to the main guide rail 10 is the upper edge of the lifting member 40. Is advanced into the main guide rail 10 along the upper edge portion 40a inclined obliquely downward from the outside to the inside.
Further, the positions of the primary feed blade portion 44, the secondary feed blade portion 48, and the slider 16 of the feed mode switching portion 42 are the same as the first operation state O1 shown in FIGS. 4 (a) and 4 (b). Maintained in the same position.
Further, in the second operation state O2, the feed driving device 18 is stopped.

Next, FIG. 6 (a) shows a third operation state of the bar feeder according to an embodiment of the present invention (after the second operation state, the main guide rail and the feed arrow start to rise) It is the side view which looked at the main part from the front side in the state where one bar of the shelf is rolled toward the main guide rail and the next bar is prevented from rolling on the main guide rail) FIG. 6B is a front view seen along the line bb in FIG.
As shown to (a) and (b) of FIG. 6, in the 3rd driving | running state O3 of the bar feeder 1, after the 2nd driving | running state O2 shown to (a) and (b) of FIG. The lifting drive motor 38 of the lifting device 14 is operated under the control of the controller 20 based on the diameter of the bar B input to the operation panel 24, and the screw jack 36 of the lifting device 14 starts to rise. . Accordingly, the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade portion 44, the support frame members 46a and 46a, the fixed shaft 45, the linear bearing unit 47, the secondary feed blade portion 48, and the feed arrow 12 are provided. Are all raised with respect to the blade holder 50.
Further, in the third operation state O3, the position of the material handling unit 30 does not change. However, as the lifting member 40 rises, one bar B1 of the material handling unit 30 faces the main guide rail 10. As a result, the next bar B2 comes into contact with the outer side surface 40b of the lifting member 40 and is prevented from rolling to the main guide rail 10 side.
Further, in the third operation state O3, the primary feed blade portion 44 rises while the elongated hole 44a remains connected to the connection protrusion 50a of the blade holding portion 50, and the secondary feed blade portion 44 48 is higher than the second operating state O2 with respect to the blade holding unit 50 in a state where the distance in the vertical direction with the primary feed blade unit 44 is maintained, and the connection notch 48a and the blade holding unit 50 are connected. The connection with the projection 50a is released.
Further, in the third operation state O3, the feed driving device 18 is stopped.

Next, FIG. 7A shows a fourth operation state of the bar feeder according to the embodiment of the present invention (after the third operation state, the material-rolling portion further moves closer to the main guide rail). FIG. 7 is a side view of the main part viewed from the front side in a state in which the main part in a state where the main guide rail and the feed arrow continue to rise while moving forward and guiding one bar to the center of the main guide rail. (B) of FIG. 8 is the front view seen along the bb line in (a) of FIG.
As shown to (a) and (b) of FIG. 7, in the 4th operation state O4 of the bar feeder 1, after the 3rd operation state O3 shown to (a) and (b) of FIG. The screw jack 36 of the elevating device 14 is further raised from the third operation state O3, and the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade 44, the support frame members 46a and 46a, the fixed shaft 45, All of the linear bearing unit 47, the secondary feed blade portion 48, and the feed arrow 12 are further raised with respect to the blade holding portion 50.
Further, in the fourth operation state O4, the material handling unit 30 is in a state in which the tip portion 30a has advanced toward the main guide rail 10 side compared to the second operation state O2 and the third operation state O3. The material B1 is guided to approximately the center of the main guide rail 10.
Further, in the fourth operation state O4, as in the third operation state O3, the primary feed blade portion 44 is lifted while the elongated hole 44a remains connected to the connection protrusion 50a of the blade holding portion 50. The secondary feed blade 48 is raised with respect to the blade holder 50 while maintaining a vertical distance from the primary feed blade 44, and the coupling notch 48a and the blade holder 50 are connected. The connection with the connection protrusion 50a is released.
Further, in the fourth operating state O4, the feed driving device 18 is stopped.

Next, FIG. 8A shows a fifth operation state of the bar feeder according to the embodiment of the present invention (after the fourth operation state, the central axis of the bar on the main guide rail and the bar FIG. 8B is a side view of the main part viewed from the front side in a state in which the central axis of the spindle of the processing machine coincides and the primary feed mode of the bar by the slider is started). It is the front view seen along the bb line in (a).
As shown to (a) and (b) of FIG. 8, in the 5th operation state O5 of the bar feeder 1, after the 4th operation state O4 shown to (a) and (b) of FIG. Screw jack of the lifting device 14 so that the feeding axis C1, the central axis C2 of the bar B1 on the main guide rail 10, and the central axis C4 of the spindle (not shown) of the bar processing machine 4 all coincide. 36 rises further than the fourth operating state O4. Accordingly, the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade portion 44, the support frame members 46a and 46a, the fixed shaft 45, the linear bearing unit 47, the secondary feed blade portion 48, and the feed arrow 12 are provided. All of these are further raised with respect to the blade holding part 50 than in the fourth operating state O4.
Further, in the fifth operation state O5, the feed axis C1, the center axis C2 of the bar B1 on the main guide rail 10, and the center axis C4 of the spindle (not shown) of the bar processing machine 4 are all one. Then, positioning (centering) according to the diameter of the bar B input to the operation panel 24 is completed, and the main guide rail 10 and the feed arrow 12 are at the primary feed height position P1. Under the control of the controller 20, the feed drive motor 22 of the feed drive device 18 rotates forward, and the timing belt 52 is driven by the drive of the feed drive motor 22, and the carriage 54, the blade holding unit 50, the primary feed blades. The part 44 and the slider 16 integrally move forward to the bar processing machine 4 side, and the slider 16 feeds the bar B1 on the main guide rail 10 to the bar processing machine 4 side along the feed axis C1. Thus, the primary feed mode M1 is started.

Here, before starting the primary feed mode M1 of the bar B1 on the main guide rail 10, the controller 20 controls the feed drive motor 22 of the feed drive device 18 in advance and moves the slider 12 on the main guide rail 10. It moves to the rear end of the bar B1 and is positioned in advance. At this time, the feed speed V1 of the feed drive motor 22 until the slider 12 moves to the rear end of the bar B1 is such that the leading end of the bar B1 is the bar front end detecting device after starting the primary feed mode M1. It is set to a feed speed (V1> V2) faster than the feed speed V2 until it is detected by 58.
Further, the distance between the slider 12 before the start of the primary feed mode M1 and the rear end portion of the bar B1 varies depending on the length in the longitudinal direction (material length) of the bar B1 supplied onto the main guide rail 10. Therefore, the feed speed V1 of the feed drive motor 22 of the feed drive device 18 is arbitrary depending on the material length of the bar B1 and the distance between the slider 12 before the start of the primary feed mode M1 and the rear end of the bar B1. Can be set.
Further, in the fifth operation state O5, the material handling unit 30 is driven by the shelf drive motor 32 under the control of the controller 20 during execution of the primary feed mode, and the bar feeder 1 of the bar feeder 1 shown in FIG. It is configured to retreat toward the initial position of the material handling unit 30 in the first operation state O1.
During execution of the primary feed mode in the fifth operating state O5, the main guide rail 10 and the feed arrow 12 are at the primary feed height position P1, and the coupling notch 48a of the secondary feed blade 48 and the blade holding are maintained. Since the connection with the connection protrusion 50a of the portion 50 is released, the carriage 54, the blade holding portion 50, the primary feed blade portion 44, and the slider 16 are integrally advanced toward the bar processing machine 4 side. Even so, the secondary feed blade 48, the linear bearing unit 47, and the feed arrow 12 stay in the same position without moving forward.

Next, (a) of FIG. 9 shows the sixth operating state (after the fifth operating state) of the bar feeder according to the embodiment of the present invention. A side view of the main part in the state where the main guide rail and the feeding arrow start to descend toward the first operating state in which the central axis coincides with the central axis of the spindle of the bar processing machine, as viewed from the front side. FIG. 9B is a front view seen along the line bb in FIG. 9A.
As shown in (a) and (b) of FIG. 9, in the sixth operating state O6 of the bar feeder 1, after the fifth operating state O5 shown in (a) and (b) of FIG. The material handling part 30 is completely returned to the initial position.

Further, in the sixth operating state O6, the feed of the feed drive device 18 by the controller 20 is performed until the tip of the bar B1 on the main guide rail 10 is detected by a bar tip detecting device 58 described later. Under the control of the drive motor 22, the slider 16 moves forward at a feed speed V2 that is slower than the feed speed V1 before starting the primary feed mode M1. Further, the controller 20 controls the feed driving motor 22 of the feed driving device 18 after the bar tip detecting device 58 detects the tip of the bar B1, and the slider 16 is again faster than the feed speed V2. The bar B1 is fed to the bar processing machine 4 side by V3 (V3> V2). When the slider 16 moves forward by a predetermined distance, the controller 20 determines that the primary feed mode M1 has been completed, and the feed drive motor 22 of the feed drive device 18 performs reverse rotation opposite to the normal rotation in the fifth operating state O5. Control to do. Then, the timing belt 52 is driven by the driving of the feed driving motor 22, and the carriage 54, the blade holding unit 50, the primary feeding blade unit 44, and the slider 16 are all integrated with the bar processing machine 4. It reverses and the preparation which performs secondary feed mode M2 is started.
Regarding the feed speed V3 of the feed drive motor 22 of the feed drive device 18 after the bar tip detecting device 58 detects the tip of the bar B1, the bar tip detecting device 58 detects the tip of the bar B1. You may set so that it may become equal to the feed speed V2 until immediately before detection (V2 = V3).

  Further, in the sixth operating state O6, the feeding axis C1, the central axis C2 of the bar B1 and the central axis C4 of the spindle (not shown) of the bar processing machine 4 are all in the same state. The screw jack 36 of the device 14 starts to descend from the fifth operating state O5, and finally the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade 44, the support frame members 46a and 46a, The fixed shaft 45, the linear bearing unit 47, the secondary feed blade 48, and the feed arrow 12 all return to the first operating state O1 shown in FIGS. It is lowered to the position P2. Then, as shown in FIGS. 4A and 4B, the center axis C3 of the feed arrow 12 again coincides with the center axis C4 of the spindle (not shown) of the bar processing machine 4 so that the secondary axis The feed mode M2 is started.

Next, as shown in FIGS. 4A and 4B, in the first operation state O1 next to the sixth operation state O6, the main guide rail 10 and the feed arrow 12 are in the secondary feed height position. At P2, when the center axis C3 of the feed arrow 12 and the center axis C4 of the spindle (not shown) of the bar processing machine 4 coincide with each other and the secondary feed mode M2 is started, feed driving is performed under the control of the controller 20 The feed drive motor 22 of the apparatus 18 rotates in the forward direction, and the timing belt 52 is driven by the drive of the feed drive motor 22. The carriage 54, the blade holding portion 50, the primary feed blade portion 44, the slider 16, and the secondary feed The blade 48, the linear bearing unit 47, and the feed arrow 12 all move forward toward the bar processing machine 4, and the front end of the feed arrow 12 passes the rear end of the bar B 1 on the auxiliary guide rail 34. To feed axis C1 So that the feeding is pressed against the bar processing machine 4 side me. In the secondary feed mode M2, the feed speed of the feed drive motor 22 for moving the feed arrow 12 can be arbitrarily set by the control of the controller 20.
When the feed arrow 12 moves forward by a predetermined distance and the bar B1 on the auxiliary guide rail 34 is completely fed to the bar processing machine 4 side, the secondary feed in the secondary feed mode M2 is completed. It is like that. Then, after the processing of the bar B1 by the bar processing machine 4 is finished, the feed drive motor 22 of the feed drive device 18 rotates in reverse by the control of the controller 20, and the timing belt 52 is driven by the drive of the feed drive motor 22 The carriage 54, the blade holding portion 50, the primary feed blade portion 44, the slider 16, the secondary feed blade portion 48, the linear bearing unit 47, and the feed arrow 12 are all integrated into the bar processing machine 4. On the other hand, it moves backward and returns to the original position ((a) and (b) of FIG. 4).

Next, with reference to FIGS. 10A and 10B, FIG. 11, and FIG. 12, details of the bar tip detecting device of the bar feeder according to the embodiment of the present invention will be described.
Each of (a) and (b) of FIG. 10 is a portion showing a state during execution of the primary feed mode and before detection of the bar material tip in the bar material tip detection device of the bar material feeder according to the embodiment of the present invention. An enlarged plan view and a partially enlarged front view are shown respectively. FIG. 11 is a partially enlarged front view showing a state in which the primary feed mode is being executed and the bar front end is detected in the bar tip detecting device of the bar feeder according to the embodiment of the present invention. Furthermore, FIG. 12 shows a partially enlarged front view showing a state when the primary feed mode ends and the secondary feed mode is shifted in the bar tip detecting device of the bar feeder according to the embodiment of the present invention. .

First, as shown in FIGS. 10A and 10B, the bar tip detecting device 58 of the bar feeder 1 is such that the bar tip detecting device 58 is the tip of the bar B 1 on the main guide rail 10. When the detected signal is transmitted to the controller 20 when 80 is detected, the controller 20 performs the primary feed mode based on the previously input distance from the bar material tip detection device 58 to the bar material processing machine 4. The slider 16 of M1 and the feed arrow 12 of the secondary feed mode M2 calculate the feed amount to which the bar B should be fed, and control the drive of the feed drive motor 22 of the feed drive device 18. The bar tip detecting device 58 is a non-contact type sensor such as a bar tip detecting device main body 60 fixed to the lower portion of the main guide rail 10 and a proximity sensor provided on the main body 60. A sensor 62, a shaft portion 64 fixed to the front side of the main body portion 60 so as to extend in the lateral width direction, a pivotally attached to the shaft portion 64, and a generally U-shape when viewed from above. A swing frame member 66 is formed.
Further, the bar tip detecting device 58 includes a tension coil spring 68 having one end attached to a part of the main body 60 and the other end attached to a part of the swing frame member 66.
Further, the bar tip detecting device 58 includes a return plate 74 that is fixedly provided inside the front wall 72 of the bar feeder main body 70 and is formed in a substantially L shape when viewed from the front side. .

As shown in FIGS. 10A and 10B, in the bar leading end detection device 58 in the state in which the primary feed mode is being executed and before the bar leading end detection, the detection of the swinging frame member 66 extending in the vertical direction is performed. The plate portion 76 passes through the opening 78 of the main guide rail 10 that faces the plate portion 76 in the vertical direction, and is in a posture state S1 standing up and down (hereinafter referred to as “standing posture state S1”). At this time, the tension coil spring 68 is relatively small so as to slightly urge the swing frame member 66 toward the main body 60 so that the detection plate portion 76 of the swing frame member 66 is in the standing posture state S1. A force (equivalent to a tensile load) is applied.
Further, the upper end portion of the return plate 74 is positioned almost directly below the opening 78 of the main guide rail 10 during execution of the primary feed mode, and the main guide rail is executed during execution of the secondary feed mode described later in FIG. When 10 is lowered, the return plate 74 can pass through the opening 78 of the main guide rail 10, and the return plate 74 and the main guide rail 10 are independent of the feed modes M1 and M2. They do not interfere with each other.
Furthermore, as shown in FIGS. 10A and 10B, in the bar tip detecting device 58 in the state in which the primary feed mode is being executed and before the bar tip is detected, the tip 80 of the bar B1 is raised. The detection plate portion 76 of the swing frame member 66 in the posture state S1 is not in contact with the detection plate portion 76 of the swing frame member 66 and the return plate 74 is not in contact. . As a result, the sensor 62 is in the state of detecting the presence of the upper plate surface 82 of the swing frame member 66 from the lower side opposite thereto, and a signal detected by the sensor 62 is transmitted to the controller 20. In the subsequent feed modes M1 and M2, the controller 20 is used to determine the feed control of the feed drive device 18.
In the present embodiment, a mode in which the signal detected by the sensor 62 is used only for the determination of the feed control of the feed drive device 18 by the controller 20 will be described. You may make it use also for judgment of the raising / lowering control of the apparatus 14. FIG.

Next, as shown in FIG. 11, in the bar leading end detection device 58 in the state in which the primary feed mode is being executed and the bar leading end is detected, the bar in the state shown in FIGS. 10 (a) and 10 (b). When B is further primarily fed to the bar processing machine 4 side, the tip of the bar B comes into contact with the detection plate part 76 of the swing frame member 66 and is rotatably connected to the shaft part 64. The arm portion 84 of the swing frame member 66 rotates about the central axis of the shaft portion 64 by the rotation angle θ1, and the entire swing frame member 66 swings, as shown in FIGS. 10 (a) and 10 (b). The detection plate portion 76 shown in FIG. 1 swings from the standing posture state S1 and falls into a posture state S2 (hereinafter referred to as “falling posture state S2”). At this time, a biasing force that slightly biases the swinging frame member 66 toward the main body portion 60 acts on the tension coil spring 68. However, since the weight of the swinging frame member 66 due to the entire swinging frame member 66 falling exceeds the urging force of the tension coil spring 68, the swinging frame member 66 after the tip 80 of the bar B passes therethrough. The detection plate portion 76 is in a posture state S3 that is further tilted forward than the tilted posture state S2 (hereinafter referred to as a “falling posture state S3”), and the lower rear end portion 77 of the swing frame member 66 detects the bar tip. The rocking | fluctuation of the rocking | fluctuation frame member 66 is controlled by contact | abutting to the bottom face 60a of the apparatus main-body part 60. FIG.
Further, in the swing frame member 66 in the tilted posture state S3, the tip end portion of the detection plate portion 76 is in a state of being pulled out downward from the opening 78 of the main guide rail 10, but is not in contact with the return plate 74. It is in a state. At this time, the sensor 62 does not detect the presence of the upper plate surface 82 of the swing frame member 66 on the upper side of the sensor 62 because the upper plate surface 82 of the swing frame member 66 moves obliquely forward. Become.

Next, as shown in FIG. 12, in the bar tip detection device 58 in the state when the primary feed mode is finished and the secondary feed mode is shifted, the main drive is driven by the lift drive motor 38 of the lift device 14. In the middle of descending from the primary feed height position P1 (see FIG. 10 (a) and FIG. 11) to the secondary feed height position P2 (see FIG. 12) integrally with the guide rail 10, the tilting posture state S3 swings. The lower surface of the detection plate portion 76 of the moving frame member 66 is in contact with the upper side surface of the tip end portion 74 a of the return plate 74. Along with this contact, an urging force of the tension coil spring 68 that slightly urges the swing frame member 66 toward the main body 60 side is applied so that the detection plate portion 76 of the swing frame member 66 is in the standing posture state S1. The arm portion 84 of the swing frame member 66 rotates about the central axis of the shaft portion 64 by a rotation angle θ2 opposite to the rotation angle θ1 (see FIG. 11), and the swing frame member 66 as a whole. 12 swings, and the detection plate portion 76 shown in FIG. 12 is returned from the tilted posture state S1 to the standing posture state S1 similar to (b) of FIG.
At this time, the detection plate portion 76 and the return plate 74 of the swing frame member 66 are not in contact with each other. In addition, the sensor 62 is in a state where the presence of the upper plate surface 82 of the swing frame member 66 is detected from the lower side facing this, and a signal detected by the sensor 62 is transmitted to the controller 20. It is used for determination of feed control of the feed drive device 18 by the controller 20 in each subsequent feed mode M1, M2. In the present embodiment, the signal detected by the sensor 62 will be described only for determining the feed control of the feed drive device 18 by the controller 20, but in addition to the determination of the feed control of the feed drive device 18, You may make it use also for judgment of the raising / lowering control of the raising / lowering apparatus 14. FIG.

Next, with reference to FIGS. 13A and 13B, details of the main guide rail, the auxiliary guide rail, and the connecting portion of the bar feeder according to an embodiment of the present invention will be described.
FIG. 13A shows a connection state between the front end portion of the main guide rail and the rear end portion of the auxiliary guide rail by the engagement connection block in the primary feed mode of the bar feeder according to the embodiment of the present invention. A partial enlarged front view is shown, and FIG. 13B is a side view of FIG. 13A as viewed from the bar processing machine side.

First, as shown in FIGS. 13A and 13B, an auxiliary guide having a V-shaped cross section substantially the same as that of the main guide rail 10 is provided between the main guide rail 10 and the bar processing machine 4. Rails 34 are provided. The auxiliary guide rail 34 has the bar feeder 1 close to the bar processing machine 4, for example, a cover (not shown) is attached to the headstock 6 (see FIG. 1) of the bar processing machine 4. This is for bridging the main guide rail 10 at the primary feed mode height position P1 and the headstock 6 of the bar processing machine in the case where it cannot be installed.
Further, on the front surface of the front wall portion 72 of the bar material feeder main body 70 located near the front end portion of the main guide rail 10 on the bar processing machine 4 side, a pair of left and right in FIG. A fixed plate 86 is fixed. A bracket 88 is fixed in front of the fixed plate 86 and below the front end of the main guide rail 10 on the bar processing machine 4 side so as to protrude downward. The bracket 88 is fixed to the main guide rail 10. Is slidable in the vertical direction along the front surface of the fixed plate 86 as it moves up and down.
Further, a substantially L-shaped support member 90 projecting forward is fixed to the front surface of the bracket 88, and the upper surface of the portion projecting forward of the support member 90 has a substantially M-shaped cross section in the center. A lifting block 92 having a V-shaped groove formed in the part is fixed.

Next, a pair of support members 94, 96 that are formed in a substantially L shape so as to protrude forward and are paired in the vertical direction are fixed to the front surface of each fixing plate 86, respectively. , 96 fixedly support the upper and lower ends of a rod 98 extending in the vertical direction.
A bracket 100 is fixed below the auxiliary guide rail 34 and in front of the rod 98 so as to protrude downward, and both sides of the bracket 100 slide in the vertical direction along each rod 98. It is attached as possible.
Further, a substantially cylindrical portion 102 is formed in a substantially central portion of the bracket 100 on the rear side. The rod 104 is formed in the center of the cylindrical portion 102 so as to extend rearward. Has been. The lower peripheral surface of the rod 104 is engaged and supported from below by a V-shaped groove of the lifting block 92.
That is, the bracket 88, the support members 90, 94, 96, the lifting block 92, the rod 104, the bracket 100, and the auxiliary guide rail 34 can all be moved up and down integrally with the main guide rail 10.

Furthermore, a stopper member 106 such as a set collar is attached to the rod 98 on one side of the bracket 100 of the auxiliary guide rail 34 so that its height position can be changed. For example, when the primary feed mode M1 is started, the stopper member 106 is housed in the stopper member 106 when the main guide rail 10 is raised together with the auxiliary guide rail 34 and set to the primary feed height position P1. By tightening the screw member 108, the stopper member 106 can be fixed to the rod 98 below the bracket 100 of the auxiliary guide rail 34. When the main guide rail 10 is lowered to the secondary feed height position P2 when the primary feed mode M1 is shifted to the secondary feed mode, as long as the fixed state of the stopper member 106 is maintained, the second Since the auxiliary guide rail 34 is maintained at the primary feed height position P1 even in the secondary feed mode M2, the central axis C2 of the bar B on the auxiliary guide rail 34 in the secondary feed mode M2 is in the secondary feed mode M2. It coincides with the central axis C3 of the feed arrow 12. Further, the position of the auxiliary guide rail 34 is maintained at the same position until the processing of the bar having the same diameter is completed.
In FIGS. 13A and 13B, the main guide rail 10 raised in the primary feed mode is indicated by a solid line and is lowered during the transition from the primary feed mode to the secondary feed mode. The main guide rail 10 is indicated by a chain line.

  That is, the lifting block 92 of the main guide rail 10 and the rod 104 of the auxiliary guide rail 34 are engaged and connected to each other when the main guide rail 10 is raised before the primary feed mode is first executed. Thus, in a state where the main guide rail 10 is lowered after the auxiliary guide rail 34 is fixed to the rod 98 by the stopper member 106, it is an engagement connecting portion for releasing the engagement connection with each other.

Next, the operation of the bar feeder 1 according to this embodiment will be described with reference to FIGS.
When the bar supply machine 1 is operated and the bar processing machine 4 starts processing the bar, first, after the operator inputs material information such as the diameter of the bar B to be processed into the operation panel 24, When the operation of the bar feeder 1 and the bar processor 4 of the bar processing system 2 is started, as shown in FIGS. 4A and 4B, the bar feeder 1 is in the primary feed mode. This is the state before the preparation of M1 is started (first operation state O1). At this time, the feed axis C1, the center axis C3 of the feed arrow 12, and the center axis C4 of the spindle (not shown) of the bar processing machine 4 coincide with each other, and the screw jack 36 of the lifting device 14 is most lowered. doing. Further, in the first operation state O1, the material handling unit 30 is in an initial position where the front surface on the main guide rail 10 side is substantially in the same plane as the side surface on the material shelf 8 side of the main guide rail 10.

Next, after the first operating state O1 shown in FIGS. 4A and 4B, in the second operating state O2 shown in FIGS. 5A and 5B, the primary feed mode M1 is prepared. The shelf drive motor 32 is driven by the control of the controller 20, and the tip end portion 30 a of the material handling unit 30 of the material shelf 8 advances to the side close to the main guide rail 10. As a result, the bar B placed on the material shelf 8 moves to the main guide rail 10 side as a whole. And the front-end | tip part 30a of the material handling part 30 is inserted in the clearance gap d (refer FIG. 2) adjacent to the longitudinal direction of the main guide rails 10 mutually.
In the second operation state O2, the screw jack 36 of the lifting device 14 is not particularly raised, but a part of the single bar B1 closest to the main guide rail 10 is the upper edge of the lifting member 40. Advances in the main guide rail 10 along the upper edge portion 40a inclined obliquely downward from the outside toward the inside.
At this time, the positions of the primary feed blade portion 44, the secondary feed blade portion 48, and the slider 16 in the feed mode switching portion 42 are in the first operating state O1 shown in FIGS. 4 (a) and 4 (b). And the feed driving device 18 is stopped.

Next, after the second operating state O2 shown in FIGS. 5 (a) and 5 (b), in the third operating state O3 shown in FIGS. 6 (a) and 6 (b), it is input to the operation panel 24. Based on the diameter of the bar B, the controller 20 controls the elevator drive motor 38 of the elevator device 14 to start raising the screw jack 36 of the elevator device 14. Accordingly, the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade portion 44, the support frame members 46a and 46a, the fixed shaft 45, the linear bearing unit 47, the secondary feed blade portion 48, and the feed arrow 12 are provided. Are all raised with respect to the blade holder 50.
At this time, in the state before the first execution of the primary feed mode, as shown in FIGS. 13A and 13B, as the main guide rail 10 is lifted, the main guide rail 10 lifting block 92. However, it raises in the state engaged and connected to the lower side of the rod 104 of the auxiliary guide rail 34. That is, the bracket 88, the support members 90, 94, 96, the lifting block 92, the rod 104, and the bracket 100 of the auxiliary guide rail 34 all rise integrally with the main guide rail 10.

Further, in the third operation state O3, the position of the material handling unit 30 does not change. However, as the lifting member 40 rises, one bar B1 of the material handling unit 30 faces the main guide rail 10. The next bar B2 is prevented from coming into contact with the outer side surface 40b of the lifting member 40 so as not to roll toward the main guide rail 10 side.
Further, the primary feed blade portion 44 rises while the elongated hole 44a remains connected to the connection projection 50a of the blade holding portion 50, and the secondary feed blade portion 48 is the primary feed blade portion. In the state where the vertical distance from 44 is maintained, the blade holding unit 50 is raised from the second operation state O2 and the connection between the connection notch 48a and the connection protrusion 50a of the blade holding unit 50 is released. However, the feed driving device 18 is stopped.

Next, after the third operating state O3 shown in FIGS. 6A and 6B, in the fourth operating state O4 shown in FIGS. 7A and 7B, the screw jack of the lifting device 14 is shown. 36 rises further than the third operating state O3, and the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade 44, the support frame members 46a and 46a, the fixed shaft 45, the linear bearing unit 47, the second All of the next feed blade portion 48 and the feed arrow 12 are further raised with respect to the blade holding portion 50. Further, as the main guide rail 10 is raised, the bracket 88, the support members 90, 94, 96, the lifting block 92, the rod 104, and the bracket 100 of the auxiliary guide rail 34 are all integrated with the main guide rail 10. To rise.
At this time, the material handling unit 30 is in a state in which the tip 30a has advanced toward the main guide rail 10 than in the second operation state O2 and the third operation state O3, and one bar B1 is in the main guide rail 10. Is led near the center. Further, when the bar B1 is supplied from the material shelf 8 side to the main guide rail 10 due to the lifted member 40 and the relative position of the main guide rail 10 and the material handling unit 30, the main guide The impact given to the bar B1 from the rail 10 is suppressed, and the noise of the bar feeder 1 generated by the impact of the bar B1 is suppressed.
Further, in the fourth operation state O4, as in the third operation state O3, the primary feed blade portion 44 is lifted while the elongated hole 44a remains connected to the connection protrusion 50a of the blade holding portion 50. doing. The secondary feed blade 48 is raised with respect to the blade holder 50 while maintaining the vertical distance from the primary feed blade 44, and the connection notch 48a and the blade holder 50 are connected. Although the connection with the projection 50a is released, the feed driving device 18 is stopped.

Next, after the fourth operating state O4 shown in FIGS. 7 (a) and 7 (b), in the fifth operating state O5 shown in FIGS. 8 (a) and 8 (b), the feed axis C1, The screw jack 36 of the elevating device 14 performs the fourth operation so that the center axis C2 of the bar B1 on the guide rail 10 and the center axis C4 of the spindle (not shown) of the bar processing machine 4 all coincide. It rises further than the state O4. Accordingly, the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade portion 44, the support frame members 46a and 46a, the fixed shaft 45, the linear bearing unit 47, the secondary feed blade portion 48, and the feed arrow 12 are provided. Are further raised with respect to the blade holding part 50 than in the fourth operating state O4. Further, as the main guide rail 10 is raised, the bracket 88, the support members 90, 94, 96, the lifting block 92, the rod 104, and the bracket 100 of the auxiliary guide rail 34 are all integrated with the main guide rail 10. To rise.
When all of the feeding axis C1, the central axis C2 of the bar B1 on the main guide rail 10, and the central axis C4 of the spindle (not shown) of the bar processing machine 4 are all coincident, they are input to the operation panel 24. Positioning (center alignment) according to the diameter of the bar B is completed, and the main guide rail 10 and the feed arrow 12 become the primary feed height position P1.
At this time, the operator confirms that the auxiliary guide rail 34 is at the same height position P1 as the main guide rail 10, as shown in FIGS. The stopper member 106 is fixed to the rod 98 on the lower side of the bracket 100 of the auxiliary guide rail 34 by tightening the screw member 108 housed in the member 106. Thereafter, the auxiliary guide rail 34 is processed with a bar having the same diameter. Is kept in the same position until is finished.

Further, in the fifth operation state O5, the feed drive motor 22 of the feed drive device 18 is rotated forward by the control of the controller 20, and the timing belt 52 is driven by the drive of the feed drive motor 22, and the carriage 54, blades The holding portion 50, the primary feed blade portion 44, and the slider 16 integrally advance toward the bar processing machine 4, and the slider 16 moves the bar B1 on the main guide rail 10 along the feed axis C1. Feeding to the processing machine 4 side starts the primary feed mode M1.
Here, before starting the primary feed mode M1 of the bar B1 on the main guide rail 10, the controller 20 controls the feed drive motor 22 of the feed drive device 18 in advance and moves the slider 12 on the main guide rail 10. It is moved to the rear end of the bar B1 and positioned in advance. At this time, until the slider 12 moves to the rear end of the bar B1, the primary feed mode M1 is started and the tip 80 of the bar B1 is detected by the bar front end detector 58. It moves at a feed speed V1 that is faster than the feed speed V2.
Further, the material handling unit 30 is driven by the shelf drive motor 32 under the control of the controller 20 during execution of the primary feed mode, and the material handling unit 30 in the first operation state O1 of the bar feeder 1 shown in FIG. Retreat toward the initial position of the part 30.

  Further, during the execution of the primary feed mode in the fifth operation state O5, the main guide rail 10 and the feed arrow 12 are at the primary feed height position P1, so that the coupling notch 48a and the blade of the secondary feed blade 48 are connected. The connection between the holding portion 50 and the connection projection 50a is released, and the carriage 54, the blade holding portion 50, the primary feed blade portion 44, and the slider 16 are integrally advanced to the bar processing machine 4 side. Even so, the secondary feed blade 48, the linear bearing unit 47, and the feed arrow 12 remain in the same position without moving forward.

  Further, in the fifth operation state O5, as shown in FIGS. 10A and 10B, the controller 20 is in a state where the primary feed mode is being executed and before the bar tip detection by the bar tip detection device 58. Controls the feed drive motor 22 of the feed drive device 18 and moves forward with the bar B1 at a feed speed V2 slower than the feed speed V1 until the slider 12 moves to the rear end of the bar B1. At this time, the detection plate portion 76 extending in the vertical direction of the swing frame member 66 of the bar tip detecting device 58 is in the standing posture state S1, and the tip portion 80 of the bar B1 is swinging in the standing posture state S1. The detection plate portion 76 of the frame member 66 is not in contact, and the detection plate portion 76 of the swing frame member 66 and the return plate 74 are not in contact. Further, the sensor 62 detects the presence of the upper plate surface 82 of the swing frame member 66 on the lower side opposite to this, and a signal detected by the sensor 62 is transmitted to the controller 20, and each of the subsequent feeding modes is detected. It is used for judgment of feed control of the feed drive device 18 by the controller 20 in M1 and M2. For example, when a signal indicating that the bar tip detecting device 58 has detected the tip 80 of the bar B1 is transmitted to the controller 20, the controller 20 moves from the bar tip detecting device 58 input in advance to the bar processing machine 4. Based on the distance, the slider 16 in the primary feed mode M1 and the feed arrow 12 in the secondary feed mode M2 calculate the feed amount that the bar B should be fed, and control the drive of the feed drive motor 22 of the feed drive device 18. .

Next, in the fifth operating state O5 shown in FIGS. 8A and 8B, the bar B1 in the state shown in FIGS. 10A and 10B is further moved to the bar processing machine 4 side. When fed, the bar feeder 1 shown in FIGS. 9A and 9B is in the sixth operating state O6, and the material handling unit 30 is completely returned to the initial position.
At this time, as shown in FIG. 11, the tip 80 of the bar B1 on the main guide rail 10 contacts the detection plate 76 of the swing frame member 66 of the bar tip detector 58. Then, the arm portion 84 of the swing frame member 66 that is pivotally connected to the shaft portion 64 rotates about the center axis of the shaft portion 64 by the rotation angle θ1, and the swing frame member 66 as a whole. The swinging posture state S2 shown in FIG. 11 swings and falls from the standing posture state S1 shown in FIGS. 10 (a) and 10 (b). At this time, the controller 20 controls the feed drive motor 22 of the feed drive device 18, and the slider 12 moves forward together with the bar B1 at a feed speed V3 faster than the feed speed V2. Further, the tension coil spring 68 shown in FIG. 11 is applied with a biasing force that slightly biases the swing frame member 66 toward the main body 60 side. Since the dead weight of the moving frame member 66 exceeds the urging force of the tension coil spring 68, the moving frame member 66 further swings. Then, the lower rear end portion 77 of the swing frame member 66 abuts against the bottom surface 60a of the bar tip detection device main body 60, the swing of the swing frame member 66 is restricted, and the tip portion 80 of the bar B1 is moved. After passing, the detection plate portion 76 of the swing frame member 66 is maintained in a posture state S3 (falling posture state S3) that is further tilted forward than the tilted posture state S2.

Further, in the swing frame member 66 in the tilted posture state S3, the tip end portion of the detection plate portion 76 is pulled out downward from the opening 78 of the main guide rail 10 and is not in contact with the return plate 74. . At this time, the sensor 62 does not detect the presence of the upper plate surface 82 of the swing frame member 66 on the upper side of the sensor 62 because the upper plate surface 82 of the swing frame member 66 moves obliquely forward. Become.
In addition, the swing frame member 66 in the tilted posture state S3 is moved to the secondary feed mode after the primary feed mode M1 is finished, and the lower rear end of the swing frame member 66 until the main guide rail 10 is lowered. The portion 77 is in contact with the bottom surface 60a of the bar tip detection device main body 60, and is maintained in a state in which swinging is restricted.

  Further, in the sixth operating state O6 shown in FIGS. 8 (a) and 8 (b) and FIG. 11, after the bar tip detecting device 58 detects the tip 80 of the bar B1, the slider 16 moves a predetermined distance. When the vehicle moves forward, the controller 20 determines that the primary feed mode M1 has been completed, and performs a control in which the feed drive motor 22 of the feed drive device 18 rotates in the reverse direction opposite to the normal rotation in the fifth operating state O5. Then, the timing belt 52 is driven by the driving of the feed driving motor 22, and the carriage 54, the blade holding unit 50, the primary feeding blade unit 44, and the slider 16 are all integrated with the bar processing machine 4. Retreat and start preparations for executing the secondary feed mode M2.

Further, in the sixth operating state O6, the feeding axis C1, the central axis C2 of the bar B1 and the central axis C4 of the spindle (not shown) of the bar processing machine 4 are all in the same state. The screw jack 36 of the device 14 starts to descend from the fifth operating state O5, and finally the lifting member 40, the main guide rail 10, the slider 16, the primary feed blade 44, the support frame members 46a and 46a, The fixed shaft 45, the linear bearing unit 47, the secondary feed blade 48, and the feed arrow 12 all return to the first operating state O1 shown in FIGS. Lower to position P2. Then, as shown in FIGS. 4A and 4B, the center axis C3 of the feed arrow 12 again coincides with the center axis C4 of the spindle (not shown) of the bar processing machine 4 so that the secondary axis The feed mode M2 is started.
At this time, when the main guide rail 10 is lowered (see the chain line 10 in FIG. 13A), the engagement connection between the lifting block 92 and the rod 104 of the auxiliary guide rail 34 is released, and the lifting block 92 is moved to the main block 92. Although the guide rail 10 is lowered together with the guide rail 10, the bracket 100 of the auxiliary guide rail 34 is maintained in a state of being fixed to the rod 98 by the stopper member 106. Therefore, even in the secondary feed mode M2, the auxiliary guide rail 34 has the primary feed height. Maintained at position P1. The central axis C2 of the bar B on the auxiliary guide rail 34 in the secondary feed mode M2 coincides with the central axis C3 of the feed arrow 12 in the secondary feed mode M2.

Here, in the sixth operating state O6 in which the primary feed mode ends and the secondary feed mode is entered, as shown in FIG. 12, the bar tip detection device 58 drives the lift drive motor 38 of the lift device 14. , In a state of being tilted while being lowered from the primary feed height position P1 (see FIG. 10A and FIG. 11) to the secondary feed height position P2 (see FIG. 12) integrally with the main guide rail 10. The lower surface of the detection plate portion 76 of the swing frame member 66 in S3 comes into contact with the upper side surface of the tip portion 74a of the return plate 74. Then, the biasing force of the tension coil spring 68 that slightly biases the swing frame member 66 toward the main body 60 side so that the detection plate portion 76 of the swing frame member 66 is in the standing posture state S1 is also applied. The arm portion 84 of the swing frame member 66 rotates about the central axis of the shaft portion 64 by a rotation angle θ2 (see FIG. 12) opposite to the rotation angle θ1 (see FIG. 11). The entire frame member 66 swings, and the detection plate portion 76 shown in FIG. 12 is returned from the tilted posture state S1 to the standing posture state S1 similar to FIG. 10B.
At this time, the detection plate portion 76 and the return plate 74 of the swing frame member 66 are not in contact with each other, and the sensor 62 detects the presence of the upper plate surface 82 of the swing frame member 66 from the lower side facing it. It will be in the state. Further, a signal detected by the sensor 62 is transmitted to the controller 20 and used for determination of feed control of the feed drive device 18 by the controller 20 in each of the subsequent feed modes M1 and M2.

Next, as shown in FIGS. 4A and 4B, in the first operation state O1 next to the sixth operation state O6, the main guide rail 10 and the feed arrow 12 are in the secondary feed height position. At P2, the center axis C3 of the feed arrow 12 and the center axis C4 of the spindle (not shown) of the bar processing machine 4 coincide with each other, and the secondary feed mode M2 is started. Under the control of the controller 20, the feed drive motor 22 of the feed drive device 18 rotates forward, and the timing belt 52 is driven by the drive of the feed drive motor 22, and the carriage 54, the blade holding unit 50, the primary feed blades. The part 44, the slider 16, the secondary feed blade 48, the linear bearing unit 47, and the feed arrow 12 all move forward integrally to the bar processing machine 4, and the front end of the feed arrow 12 is the auxiliary guide rail 34, the rear end of the bar B1 on the bar 34 is pressed toward the bar processing machine 4 along the feed axis C1 and fed.
When the feed arrow 12 moves forward by a predetermined distance and the bar B1 on the auxiliary guide rail 34 is completely fed to the bar processing machine 4 side, the secondary feed in the secondary feed mode M2 is completed. . Then, after the processing of the bar B1 by the bar processing machine 4 is finished, the feed drive motor 22 of the feed drive device 18 rotates in reverse by the control of the controller 20, and the timing belt 52 is driven by the drive of the feed drive motor 22 The carriage 54, the blade holding portion 50, the primary feed blade portion 44, the slider 16, the secondary feed blade portion 48, the linear bearing unit 47, and the feed arrow 12 are all integrated into the bar processing machine 4. On the other hand, it moves backward and returns to the original position ((a) and (b) of FIG. 4).

  According to the bar feeder 1 according to the embodiment of the present invention described above, it is common in both the case of performing the feed drive in the primary feed mode M1 of the feed drive device 18 and the case of performing the feed drive in the secondary feed mode M2. Since the single feed drive motor 22 can be used together and the feed drive motor 22 can be controlled by the controller 20 so that the speed can be changed, the bar B1 supplied from the material shelf 8 is transferred to a predetermined feed axis C1. Along with this, the bar processing machine 4 can be automatically and efficiently fed. Further, the number of parts can be reduced and the structure can be simplified as compared with the case where separate motors are used for each of the feed drive in the primary feed mode M1 and the feed drive in the secondary feed mode M2 in the feed drive motor 22. be able to. Furthermore, the whole bar feeder 1 can be reduced in size.

  Further, according to the bar feeder 1 according to the present embodiment, the controller 20 moves up and down according to the diameter of the bar B to be processed, which is input to the operation panel 24 before starting the primary feed mode M1. 14, the lift drive motor 38 and the screw jack 36, the lifting member 40, and the shelf drive motor 32 and the material handling unit 30 of the material shelf 8 are controlled, and the main guide rail 10 and the feed arrow unit 12 are moved to the primary feed height position P1. By positioning, the central axis C2 of the bar B1 on the main guide rail 10 and the feeding axis C1 can be matched. Thereby, the operation of supplying the bar B1 from the material shelf 8 to the main guide rail 10 and the positioning operation of the bar in which the central axis C2 of the bar B1 and the feeding axis C1 coincide can be performed efficiently. . Therefore, regardless of the diameter of the bar B to be processed, the supply of the bar B1 from the material shelf 8 to the main guide rail 10 and the positioning of the bar B1 with respect to the feed axis C1 can be performed quickly and efficiently. . Further, the controller 20 controls the driving of the lifting drive motor 38 of the lifting device 14 so that the feed mode switching unit 42 of the lifting device 14 can efficiently switch between the primary feed mode M1 and the secondary feed mode M2. Therefore, the bar B1 supplied from the material shelf 8 can be efficiently and automatically fed to the bar processing machine 4 along a predetermined feeding axis C1. Further, it is possible to suppress the impact on the bar when the bar B1 is supplied from the material shelf 8 to the main guide rail 10, and to suppress the noise of the bar feeder 1 generated by the impact of the bar B1. it can.

  Further, according to the bar feeder 1 according to the present embodiment, when the main guide rail 10 is raised in the state before the primary feed mode M1 is first executed, the lifting block provided on the main guide rail 10 92 rises integrally with the main guide rail 10 and engages with the rod 104 of the auxiliary guide rail 34 from below, and raises the auxiliary guide rail 34 to a position that coincides with the primary feed height position P1 of the main guide rail 10. Can be made. At this time, the auxiliary guide rail 34 can be fixed at a position coinciding with the primary feed height position P1 of the main guide rail 10 by the stopper portion 106. Therefore, for example, in a situation where the bar feeder 1 cannot be installed close to the bar processor 4, a relative distance between the main guide rail 10 of the bar feeder 1 and the bar processor 4 occurs. Even so, the bar B fed from the main guide rail 10 can be reliably fed to the bar processing machine 4 via the auxiliary guide rail 34. Further, in a state where the auxiliary guide rail 34 is fixed by the stopper member 106, when the main guide rail 10 is lowered, the engagement connection between the lifting block 92 and the rod 104 of the auxiliary guide rail 34 is released, and the lifting block 92. Is lowered together with the main guide rail 10, so that the height of the auxiliary guide rail 34 after the start of the primary feed mode M1 coincides with the central axis C2 of the bar B1 on the main guide rail 10 and the feed axis C1. The primary guide rail 10 can be maintained at the primary feed height position P1. Accordingly, since the bar B1 on the auxiliary guide rail 34 can be secondarily fed by the feed arrow 12 even in the secondary feed mode M2, the subsequent primary feed mode M1 and the secondary feed mode M2 can be more reliably performed. It can be executed efficiently. Therefore, the bar B1 supplied from the material shelf 8 can be efficiently and automatically fed to the bar processing machine 4 along the predetermined feeding axis C1.

  Furthermore, according to the bar feeder 1 according to the present embodiment, the sensor 62 of the bar front end detection device 58 and the detection plate portion 76 of the swing frame member 66 allow a predetermined feed axis line during execution of the primary feed mode M1. Since the tip 80 of the bar B1 fed to the bar processing machine 4 side along C1 can be detected, the bar fed to the bar processing machine 4 side during the primary feed mode M1. It can be confirmed whether or not the material B1 has passed through the bar tip detecting device 58, and the controller 20 can control the operation of the feed driving device 18 based on the detection information by the bar tip detecting device 58. it can. Therefore, the bar B supplied from the material shelf 8 can be efficiently and automatically fed to the bar processing machine 4 along the predetermined feeding axis C1.

  Furthermore, according to the bar feeder 1 according to the present embodiment, before starting the primary feed mode M1 of the bar B1 on the main guide rail 10, the feed drive motor 22 of the feed drive device 18 by the controller 20 is controlled. As a result, the slider 16 moves on the main guide rail 10 at a speed V1 that is faster than the feed speed V2 from the start of the primary feed mode M1 until the tip of the bar B1 is detected by the bar tip detector 58. It is possible to move to the rear end of the bar B1 in advance, and to position the rear end of the bar B1 on the main guide rail 10 in advance at the start of the primary feed mode M1. Therefore, it is possible to quickly shift to the subsequent execution of the full-scale primary feed mode M1. Further, before starting the primary feed mode M1, the slider 16 is moved at a relatively high feed speed V1, and the leading end of the bar B1 is detected by the bar tip detecting device 58 after the primary feed mode M2 is started. Until that time, by moving the slider 16 at a relatively slow speed V2, it is possible to increase the accuracy with which the bar tip detecting device 58 detects the tip of the bar B1, so the bar B1 is used as the bar. The processing machine 1 can be fed efficiently. Further, after the bar tip detecting device 58 detects the tip of the bar B1, the bar B1 is fed again to the bar processing machine 4 at a feed speed V3 (V3> V2) faster than the feed speed V2. Since it can be sent, the bar B1 can be efficiently fed to the bar processing machine 1.

  Furthermore, according to the bar processing system 2 provided with the bar feeder 1 according to the present embodiment, the bar B supplied from the material shelf 8 of the bar feeder 1 is moved along the predetermined feeding axis C1. It is possible to provide a bar processing system that can efficiently and automatically feed the material processing machine 4.

In addition, in the bar feeder 1 according to the embodiment of the present invention described above, as an example, the configuration in which the main guide rail 10 and the slider 16 are always disposed below the feed arrow 12 has been described. However, the main guide rail 10 and the slider 16 may be always arranged above the feed arrow 12.
Moreover, in the bar feeder 1 of this embodiment, although the form to which the auxiliary guide rail 34 was applied was demonstrated, it is not restricted to such a form, The bar feeder 1 is made to adjoin to the bar processing machine 4. If it can be installed, the auxiliary guide rail 34 may be omitted and the front end portion of the main guide rail 10 and the bar processing machine 4 may be directly connected.

DESCRIPTION OF SYMBOLS 1 Bar material supply machine 2 Bar material processing system 4 Bar material processing machine 6 Headstock 8 Material shelf (material shelf part)
10 Main guide rail (Main guide rail)
12 Feeding arrows (feeding arrows)
14 Lifting device (lifting mechanism part)
16 Slider (Slider part)
18 Feeding drive (feeding drive unit)
20 Controller (control unit)
22 Feed drive motor (motor)
24 operation panel 26 shelf board part 28 shelf frame part 30 material handling part (material shelf part position adjusting means)
30a Tip part of material handling part 32 Shelf drive motor (material shelf part position adjusting means)
34 Auxiliary guide rail 36 Screw jack 38 Lift drive motor (lift drive unit)
40 Lifting member 40a Lifting member upper edge inclined portion 40b Lifting member outer side surface portion 42 Feed mode switching portion (switching means)
44 Primary feed blade portion 44a Elongated hole 45 Fixed shaft 46a Rear support frame member 46b Front support frame member 47 Linear bearing unit 48 Secondary feed blade portion 48a Connection notch 50 Blade holding portion 50a Connection protrusion 52 Timing Belt 54 Bogie 56 Traveling rail 58 Bar material tip detection device (bar material tip detection means)
60 Bar material tip detection device main body 60a Bottom surface of rod material tip detection device main body 62 Non-contact type sensor (bar material tip detection means)
64 Shaft portion 66 Oscillating frame member 68 Tensile coil spring 70 Bar material feeder main body 72 Front wall portion of the rod material feeder main body 74 Return plate 74a Tip portion 76 Detecting plate portion of the rocking frame member (bar material tip detecting means)
77 Lower rear end portion of swing frame member 78 Opening portion of main guide rail 80 Tip end portion of bar member 82 Upper plate surface of swing frame member 84 Arm portion of swing frame member 86 Fixing plate 88 Bracket 90 Support member 92 Lifting block (engagement connection)
94 Support member 96 Support member 98 Rod 100 Bracket 102 Column part 104 Rod (engagement connection part)
106 Stopper member A1 Main axis B Bar material B1 Bar material B2 Bar material C1 Feeding axis C2 Bar center axis C3 Center axis of feed arrow C4 Center axis of spindle of bar processing machine M1 Primary feed mode M2 Secondary feed mode O1 1st operation state O2 2nd operation state O3 3rd operation state O4 4th operation state O5 5th operation state O6 6th operation state P1 Primary feed height position P2 Secondary feed height position S1 S2 Standing posture state of the swing frame member detection plate S2 Swing frame member detection plate portion tilted posture state S3 Swing frame member detection plate portion tilted posture state V1 Feed drive motor feed speed V2 Feed drive motor Feed speed V3 Feed speed of feed motor

Claims (6)

A bar feeder that feeds a bar to a bar processing machine along a predetermined feed axis,
A material shelf on which bars are placed;
A main guide rail portion that guides the bar supplied from the material shelf along a predetermined feeding axis;
A feed arrow portion that is arranged in parallel above or below the main guide rail portion, and that feeds the bar on the main guide rail portion to the bar processing machine along the feed axis,
An elevating mechanism unit that integrally raises and lowers the main guide rail unit and the feed arrow unit, and a primary feed height position that matches a central axis of the bar on the main guide rail unit and the feed axis; The main guide rail part and the feed arrow part are integrally moved up and down between a secondary feed height position at which the central axis of the feed arrow part and the feed axis coincide with each other, and a primary feed mode and a secondary feed mode, An elevating mechanism unit having switching means for switching between,
When the main guide rail part is at the primary feed height position, the bar processing machine moves to the bar processing machine side and moves the bar on the main guide rail part along the predetermined feed axis. The slider part to move to the side,
When the main guide rail portion is at the primary feed height position, the slider portion is moved to the bar processing machine side so that the bar on the main guide rail portion moves along the predetermined feed axis. After executing the primary feed mode to send to the bar processing machine side and completing the primary feed mode, when the feed arrow part is at the secondary feed height position, the feed arrow part is moved to the bar processing machine side. A feed driving unit that executes a secondary feed mode that moves and sends the bar after completion of the primary feed mode to the bar processing machine side along the predetermined feed axis;
A control unit for controlling the operation of the feed driving unit and the lifting mechanism unit;
The feed drive unit includes a single motor that is used in both the feed drive in the primary feed mode and the feed drive in the secondary feed mode, and this motor can be controlled by the control unit. It is controlled so that it can shift ,
The lifting mechanism switching means includes a primary feed blade portion that supports the slider portion, a secondary feed blade portion that supports the feed arrow portion, the primary feed blade portion, and the secondary feed blade portion. And a blade holding part that holds the blade up and down,
The switching means is configured such that the elevating mechanism part raises the secondary feed blade part to the primary feed height position, thereby bringing the primary feed blade part and the blade holding part into a connected state and the secondary part. The feed blade portion and the blade holding portion are disconnected and switched to the primary feed mode, and the elevating mechanism portion lowers the secondary feed blade portion to the secondary feed height position. By doing so, each of the primary feed blade portion and the secondary feed blade portion and the blade holding portion are connected to each other and switched to the secondary feed mode .   Furthermore, it has a raising / lowering drive part which drives the said raising / lowering mechanism part, and a material shelf part position adjustment means which adjusts the relative position of the said material shelf part with respect to the said main guide rail part, The said control part is the said primary feed. Before starting the mode, according to the input of the diameter dimension of the bar to be processed, the lifting drive unit and the material shelf position adjusting means are controlled, and the main guide rail unit and the feed arrow unit are moved to the primary feed. 2. The bar feeder according to claim 1, wherein the bar feeder is positioned at a height position so that a central axis of the bar on the main guide rail portion coincides with the feeding axis.   Further, an auxiliary guide rail portion provided between the main guide rail portion and the bar processing machine for guiding the bar fed from the main guide rail portion to the bar processing machine, and the main guide An engagement connecting portion that is provided on the rail portion and integrally moves up and down together with the main guide rail portion and is connected to the auxiliary guide rail portion so as to be disengageable, and a stopper that fixes the height position of the auxiliary guide rail portion The engagement connecting portion engages and connects to the auxiliary guide rail portion in a state where the main guide rail portion is raised before the primary feed mode is first executed. When the auxiliary guide rail portion is raised and the auxiliary guide rail portion is fixed by the stopper portion, the engagement with the auxiliary guide rail portion is released when the main guide rail portion is lowered. Bar feeder according to claim 1 or 2 drops together with the main guide rail portion Te.   Further, the control unit includes a bar tip detection unit that detects a tip of a bar fed to the bar processing machine side along the predetermined feed axis during execution of the primary feed mode. The bar feeder according to any one of claims 1 to 3, which controls the operation of the feed driving unit on the basis of information detected by the bar tip detection means.   Before starting the primary feed mode of the bar on the main guide rail, the control unit moves the slider to the rear end of the bar on the main guide rail to position it in advance. The feed speed until the slider is moved to the rear end of the bar is controlled by the feed drive unit, and the tip of the bar is detected by the bar tip after the start of the primary feed mode. The bar feeder according to claim 4, wherein the bar feeder is set to a speed faster than the feed speed detected by the means.   A bar material processing system comprising: the bar material feeder according to any one of claims 1 to 5; and a bar material processing machine that processes a bar material fed from the bar material feeder.

Images