JP2001322047A - Work feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work feeder which can rapidly and safely feed a work without much labor. SOLUTION: This work feeder 1 comprises a feeder base 2, a tilting table 5 vertically oscillatably journalled by the feeder base 2, a fixed side supporting bar 26 provided on the tilting table 5, a flat one-end supporting member 20 provided on a tip of the fixed side supporting bar 26, a movable side supporting bar 27 expandable with respect to the fixed side supporting bar 26, the other end supporting member 23 provided on a tip of the movable side supporting bar 27, and a second driving device 52 provided so as to hold the work between the other end supporting member 23 and the one end supporting member 20. The tilting table 5 is oscillated in a lifting manner between the position at which the one-end supporting member 20 is substantially horizontally landed and the position at which the work held between the one-end supporting member 20 and the other end supporting member 23 can be fed to a working machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a workpiece such as a gravure printing cylinder to a processing machine such as a cylindrical mirror grinder or a buffing machine.

[0002]

2. Description of the Related Art Conventionally, as this type of workpiece supply apparatus, there is known an apparatus shown in FIG. 8 disclosed in Japanese Utility Model Registration No. 3019247. The workpiece supply device 71 disclosed in this publication includes a device base 72 guided by rails 56, 56 provided laterally on the front of the bed of the processing machine, and the device base 72 is connected to the device base 72 via a pivot shaft 73. A tilting table 55 that can swing vertically is pivotally supported. On the tilting table 55, a receiving member 60 for mounting the workpiece P is provided with the material longitudinal direction along the front surface of the bed. The receiving member 60 has a side plate 61 erected at its tip. Tilt table 5
5 is a position when the side plate 61 lands on the floor surface GL by a driving device (not shown), that is, a position where the receiving member 60 is inclined along the oblique line N, and a position along the substantially horizontal target arrangement line C. It is designed to oscillate between undulations. In the workpiece supply device 71, the workpiece P is laid on the inclined receiving member 60 with the side plate 61 landed, and then the receiving member 60 is made substantially horizontal. The workpiece P is delivered to the reference numerals 40 and 41).

[0003]

In the above-described conventional workpiece supply device 71, the workpiece P
Therefore, if the diameter of the workpiece P to be supplied changes, the height of the core of the workpiece P when it is leveled shifts up and down from the target placement line C of the tailstock. In that case, the receiving member 60 is raised and lowered in a horizontal posture by a lifting device (not shown), and the height of the core of the workpiece P is set to the target placement line C.
It is necessary to work to match. Such an operation requires careful attention and is troublesome.

On the other hand, the workpiece P cannot be received on the bottom surface of the receiving member 60 unless the receiving member 60 lands obliquely. When the receiving member 60 is tilted in this way, the tip of the side plate 61 rises. Therefore, the side plate 61
The workpiece P has to be lifted and placed on the receiving member 60 by a height h exceeding the tip of the workpiece P. By the way, when the work piece P is several tens kg to one hundred and several tens kg per one,
When dozens of workpieces P are loaded and unloaded in a day, the loading and unloading work becomes severe, and in the worst case, the worker suffers from back pain. As described above, the work supply device 71 is not used even though the work supply device 71 has a small angle because of lack of safety considerations and troublesome operation.

[0005] The present invention has been made in view of the above-mentioned conventional problems, and does not require much labor.
It is an object of the present invention to provide a practical workpiece supply apparatus capable of performing a workpiece supply operation quickly and safely.

[0006]

In order to achieve the above object, a workpiece supply apparatus according to the present invention includes an apparatus base disposed in front of a bed of a processing machine such as a grinding machine, and a base for the apparatus. A tilting table which is pivotally supported on the table so as to be able to swing up and down, and is provided so as to be able to move up and down by an appropriate first driving device; A side support rod, a flat plate-like one end support member provided to support one end of the workpiece at the tip of the fixed side support rod, and a telescopically provided extension along the front surface of the bed with respect to the fixed side support rod. A movable-side support rod, and a second-end support member provided to support the other end of the workpiece at the tip of the movable-side support rod;
A second driving device provided to bias the movable support rod toward the fixed support rod so as to clamp the workpiece between the other end support member and the one end support member; The position when the one end support member is almost horizontal and landed,
The workpiece held between the one end support member and the other end support member is configured to swing up and down between a predetermined position at which the workpiece can be supplied to the processing machine.

Further, the movable support rod is interposed between the fixed support rod and the movable support rod in the above configuration, and the movable support rod is removably engaged with the fixed support rod to lock at the position. With a locking mechanism.

[0008]

Embodiments of the present invention will be described with reference to the drawings. Here, FIG. 1 is a front view showing a workpiece supply device according to an embodiment of the present invention, and FIG. 2 is a view taken along line AA in FIG. In each of the drawings, a workpiece supply device 1 according to this embodiment is disposed in front of a bed B of a processing machine G represented by, for example, a cylindrical mirror grinder.
Further, the workpiece supply device 1 includes a rectangular box-shaped device base 2 which is guided left and right by rails 6 and 6 provided horizontally on the front surface F of the bed B. In the device base 2, sliders 7, 7 provided on the rear surface are slidable on rails 6, 6, and run in the left-right direction.

A bearing arm 8 fixed to the upper surface of the apparatus base 2 and a bearing arm 9 fixed to the lower surface of the tilting table 5 are rotatably supported via the pivot shaft 3. Thereby, the tilting table 5 can swing up and down with respect to the apparatus base 2. On the other hand, an air cylinder 11 constituting the first driving device 4 is pivotally supported by a bearing arm 10 fixedly provided on the lower surface of the device base 2 via a pivot shaft 13 so as to be vertically swingable. The drive shaft 12 of the air cylinder 11 is connected to the tilting table 5 via a pivot shaft 14 and a connecting arm 15.
It is connected to. The first driving device 4 is a device base 2
Is driven by a lever 16 disposed on the front of the camera.
In addition, a slide table 18 that moves forward and backward slidably is provided on the upper surface of the tilting table 5, and a slide table 19 is provided on the upper surface of the slide table 18 so as to be slidable forward and backward. A fixed support rod 26 is fixed to the slide table 19. The fixed-side support rod 26 is arranged so that the longitudinal direction of the rod 26 extends along the front surface F of the bed B.

At the tip of the fixed-side support rod 26, a workpiece P
A plate-like one-end support member 20 for supporting one end of the support rod is provided substantially upright with respect to the fixed-side support rod 26. The movable support rod 27 is fixed to the bed B on the fixed support rod 26.
Are arranged along the front surface F. This movable support rod 2
The other end support member 23 for supporting the other end of the workpiece P is also provided upright at the tip of 7. On the inner surfaces of the one-end support member 20 and the other-end support member 23, a number of reference lines 21 as a number of concentric circles are formed in order to hold the workpiece P at an appropriate position.
Are drawn, and a rubber plate 22 made of, for example, transparent urethane rubber is stuck on them. Center opening 24 through which tailstocks 40 and 41 on processing machine G are inserted
Are formed on one end support member 20 and the other end support member 23. Two pairs of receiving rollers 25, 25, 25, 25 for receiving the workpiece P are provided below the inner surface of the one end support member 20 and the other end support member 23.

As shown in FIGS. 3 to 5, sliders 29, 3 provided on the front surface of the movable support rod 27 are mounted on rails 28 provided on the rear side of the fixed support rod 26.
0 is slidably mounted. Thereby, the movable-side support rod 27 can expand and contract in the left-right direction with respect to the fixed-side support rod 26. A rack 46 is laid on the upper surface of the fixed support rod 26 along the longitudinal direction of the rod. The lock mechanism 31 is interposed between the fixed-side support rod 26 and the movable-side support rod 27 at a position above the rack 46.
The lock mechanism 31 pivots on a gate-shaped casing 36 as viewed from the side of the apparatus, a gear shaft support box 53 also stored in the casing 36 in the same gate shape, and both side walls in the gear shaft support box 53. The rack 4 is fixed to a shaft 37 that is freely supported.
6, the pinion gear 43 meshing with the gear shaft support box 5
The lock gear 45 mainly rotatably supported on both side walls via a shaft 44 in front of the pinion gear 43 in the gear 3 and meshes with the pinion gear 43.

The gear shaft support box 53 is supported by the casing 36 via the shaft 37 so as to be vertically swingable. The gear lever support box 53 is provided with an operation lever 39 inserted through the elongated hole 51 on the upper surface of the casing 36. By manually operating the operation lever 39 from outside, the gear shaft support box 53 can be swung. The rocking gear 45 meshes with or separates from the rack 46 due to the swing of the gear shaft support box 53. A handle 38 for turning is attached to one end of the shaft 37. By manually turning the handle 38 to rotate the pinion gear 43,
The casing 36 and the gear shaft support box 53 are moved on the rack 46.

On the other hand, on the upper surface of the movable support rod 27 behind the casing 36, a fixed plate portion 50, which is a base portion of the hook-shaped lock key 49, is fixed. The upper end of the lock key 49 is inserted into a side hole 42 formed in the rear surface of the casing 36 and faces the inside of the casing 36. This lock key 49
Engages with or disengages from the upwardly protruding portion 47 formed on the upper surface of the gear shaft support box 53 by the relative movement between the casing 36 and the movable support rod 27, thereby engaging the gear shaft support box 53. Stop and swing. That is, the lock key 49 and the projection 47 constitute the secondary lock mechanism 32. The secondary lock mechanism 32 includes a second driving device 52
With the operation of urging the movable-side support rod 27 toward the fixed-side support rod 26 by the driving of the gear, the gear shaft support box 53 is fixed and 2
It is a heavy lock. Reference numeral 48 denotes a coil spring interposed between the casing 36 and the gear shaft support box 53, and constantly biases the gear shaft support box 53 toward the rack 46.

On the right side of the casing 36 (the left side in FIGS. 1, 3 and 4 as viewed in the drawing), for example, an air cylinder 3
3 and a second driving device 52 comprising the driving shaft 34 thereof. The drive shaft 34 is connected to the movable support rod 27 via a connection arm 35. The drive shaft 34 advances and retreats in the left-right direction by driving the air cylinder 33, and moves the casing 36 and the gear shaft support box 53 relative to the movable support rod 27. The second driving device 52 is driven by the lever 17 provided on the front surface of the device base 2.

The operation of the workpiece supply device 1 configured as described above will be described mainly with reference to FIGS. 6 and 7 and also to FIGS. 1 to 5. Here, for example, a cylindrical mirror grinder is illustrated as the processing machine G, and a relatively heavy cylinder roll for gravure printing is illustrated as the workpiece P. First, the first driving device 4 is activated by operating the lever 16 and the tilting table 5 is swung around the pivot shaft 3 to make the fixed-side support rod 26 and the movable-side support rod 27 vertical (see FIG. 6). (See the solid line and the two-dot chain line in FIG. 1). At this time, the one end support member 20 has landed on the floor surface GL in a substantially horizontal posture. Next, one end of the workpiece P is placed on the one end support member 20 with the aim of the reference line 21 of the concentric circle of the one end support member 20.

In this case, since the one end support member 20 is substantially horizontal, it is possible to lift the workpiece P without raising it high.
One end can be easily mounted on the support member 20. Then, the center (roll core) of the workpiece P is aligned with the vertical line V
The workpiece P is raised so as to overlap with the fixed support rod 2.
6 and the movable-side support rod 27.

Subsequently, the operating lever 39 is lifted up by hand and the gear shaft support box 53 is swung to move the lock gear 45 to the rack 46.
Away from Then, the locked state of the lock mechanism 31 is released, and the casing 36 and the gear shaft support box 53 are moved to the rack 4.
6 is free to move. As it is, handle 3
By turning the hand 8 or pushing the casing 36 by hand,
The pinion gear 43 can be freely advanced on the rack 46. In this case, the casing 36 and the gear shaft support box 53 are moved downward. Thus, the multi-end bearing member 23 is moved to a position close to or close to the other end of the workpiece P. Thereafter, when the hand is released from the operation lever 39, the gear shaft support box 53 is pressed by the coil spring 48, and the lock gear 45 meshed with the pinion gear 43 further meshes with the rack 46. As a result, the casing 36 and the gear shaft support box 53 are fixedly locked to the fixed support rod 26 at that position. That is, the lock mechanism 3
1 locks the movable support rod 27 at that position by engaging the movable support rod 27 with the fixed support rod 26 in a detachable manner. This allows
There is no need to measure the roll length or the like of the workpiece P in advance and set the workpiece P in the workpiece supply device 1, so that the workpiece P can be supplied quickly.

Next, the second driving device 52 is started by manually operating the lever 17. Then, the drive shaft 34 advances from the air cylinder 33 and the movable-side support rod 27 is moved to the fixed-side support rod 2.
Energize towards 6. As a result, the workpiece P is held between the other end support member 23 and the one end support member 20 with an appropriate elastic force. With the movement of the movable side support rod 27 at this time,
The lock key 49 moves within the side hole 42 of the casing 36 and reaches above the protrusion 47 to press the gear shaft support box 53.
Therefore, even if the operation lever 39 is operated by mistake at that time, the gear shaft support box 53 does not swing, so that the lock gear 45 does not separate from the rack 46, and the locked state is reliably maintained.

Thereafter, by operating the lever 16 again to activate the first driving device 4, the fixed-side support rod 26 and the movable-side support rod 27 are swung by about 90 degrees to move the workpiece P substantially horizontally. I do. At this time, the center height of the workpiece P matches the predetermined supply height in the processing machine G. In this state, the slide bases 18 and 19 are pushed by hand or the like to move the fixed-side support rod 26 and the movable-side support rod 27 backward (in the direction of arrow R in FIG. 7). Among them, the target arrangement line C in which the center of the workpiece P is a predetermined supply position in the processing machine G
(See FIGS. 2, 6, and 7). Therefore, there is no need to set the workpiece P in advance according to the diameter of the workpiece P. At that position, the tail stocks 40, 41 of the processing machine G are inserted through the center openings 24, 24 of the one end support member 20 and the other end support member 23, and the tail stock 4
Both ends of the workpiece P are held at 0, 41. in this case,
Positioning in the left-right direction ((arrow S, S direction in FIG. 7)
This is executed by running the apparatus base 2 along the rail 6 on the processing machine G side.

Subsequently, the driving of the second driving device 52 is stopped, and the elastic holding of the workpiece P by the other end support member 23 and the one end support member 20 is released. Then, since the drive shaft 34 is retracted into the air cylinder 33, the lock key 49 is retracted from above the protrusion 47, and the secondary lock of the gear shaft support box 53 is released. In this way, the workpiece P is the tail stock 4
It is handed over to 0,41 for grinding.
In addition, even if the workpiece P falls due to a failure in delivery, the workpiece P is received by the lower receiving rollers 25, 25, 25, 25, so that safety is not impaired. Thereafter, by moving the slide tables 18, 19, the other end support member 2 is moved.
3 and the one end support member 20 are temporarily retracted to an appropriate position which does not hinder the processing of the processing machine G.

After the grinding of the workpiece P is completed, the other end support member 23 and the one end support member 20 are again moved to a predetermined supply position, and the second driving device 52 is started. Thereby, the other end support member 23 and the one end support member 2
0 and the tailstock 40, 4
Receive from 1. Thereafter, the workpiece supply device 1 is operated in the reverse order of the supply operation described above, and the one end support member 20 is landed on the floor surface GL. Then, the processed workpiece P is lowered from the one end support member 20 to the floor surface GL, and the next workpiece P is placed on the one end support member 20 and supplied to the processing machine G.

As described above, in the workpiece supply device 1 of this embodiment, the fixed support rod 26 and the movable support rod 2
7 is tilted substantially vertically, and the flat plate-like one end support member 20 becomes substantially horizontal and lands on the floor surface GL or the like, so that the workpiece P can be easily placed on the one end support member 20.
After operating the operation lever 39 and placing the other end support member 23 on the other end side of the workpiece P, the operator simply releases the operation lever 39 to move the fixed side support rod 26 and the movable side support rod 27 together. You can lock the interval automatically.

In the above embodiment, a pneumatic driving device is exemplified as the first driving device and the second driving device.
The present invention is not limited to this, and a drive device such as a hydraulic cylinder or an electric motor may be used instead of the pneumatic type.

[0024]

As described above in detail, according to the workpiece supply apparatus of the present invention, the fixed-side support rod and the movable-side support rod are tilted substantially vertically, and the flat plate-like one-end support member is substantially tilted. Since the landing is performed horizontally, the workpiece can be easily placed on or lowered from the support member at one end. Therefore, the work of supplying the workpiece to the processing machine can be performed quickly and safely without requiring much labor.

In the case where a lock mechanism is provided between the fixed-side support rod and the movable-side support rod, the other end of the workpiece whose one end is supported by the support member at one end or the vicinity thereof is supported by the other end. After the member is moved, the movable support rod can be engaged with the fixed support rod and locked at that position by operating the lock mechanism. Therefore, there is no need to measure the length of the workpiece in advance, and the workpiece can be supplied easily.

[Brief description of the drawings]

FIG. 1 is a front view showing a workpiece supply device according to an embodiment of the present invention.

FIG. 2 is a view taken along the line AA in FIG.

FIG. 3 is a partial plan view showing a main part of the workpiece supply device.

FIG. 4 is a partial side view showing a main part of the workpiece supply device.

FIG. 5 is a view taken along line BB in FIG. 4;

FIG. 6 is an explanatory view of a mode in which a workpiece is placed on the workpiece supply device, as viewed from the front.

FIG. 7 is a plan view illustrating a state in which a workpiece is supplied to a processing machine by a workpiece supply device.

FIG. 8 is a front view showing a conventional workpiece supply device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 workpiece supply device 2 device base 3 pivot shaft 4 first drive device 5 tilting table 11 air cylinder 12 drive shaft 20 one end support member 23 other end support member 26 fixed support rod 27 movable support rod 31 lock mechanism 33 Air Cylinder 34 Drive Shaft 52 Second Drive B Bed C Target Placement Line F Front G Machine GL Floor P Workpiece

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yukiyoshi Kodama 1-3-16 Matsuehigashi, Wakayama-shi, Wakayama F-term in Noguchi Koki Co., Ltd.

Claims (2)

[Claims] An apparatus base disposed on the front surface of a bed of a processing machine such as a grinding machine, and is supported on the apparatus base so as to be vertically swingable, and is oscillated up and down by an appropriate first drive device. A fixed support rod provided on the tilt table such that the longitudinal direction of the rod is along the front surface of the bed; and a tip provided on the tip of the fixed support rod for supporting one end of the workpiece. A flat-plate-like one-end support member, a movable-side support rod provided to be able to extend and contract along the front surface of the bed with respect to the fixed-side support rod,
The other end support member provided to support the other end of the workpiece at the tip of the movable support rod, and the movable support rod is biased in the direction toward the fixed support rod to move the workpiece to the other end. A second driving device provided so as to be sandwiched between the support member and the one-end support member, wherein the tilting table is positioned when the one-end support member is substantially horizontal and lands, and the one-end support member and the other. A workpiece supply apparatus characterized in that the workpiece held between end bearing members swings up and down between a predetermined position at which the workpiece can be supplied to a processing machine. 2. A lock mechanism interposed between a fixed-side support rod and a movable-side support rod, wherein the movable-side support rod is removably engaged with the fixed-side support rod and locked at the position. The apparatus for supplying a workpiece according to claim 1, further comprising: