JP3162847B2 - Material loading / unloading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material loading / unloading apparatus for loading / unloading a workpiece to / from a cutting machine such as a sawing machine, and for storing the workpiece in its original position as required. About.

[0002]

2. Description of the Related Art Conventionally, a three-dimensional warehouse for storing a work such as a bar is disposed near a cutting machine such as a sawing machine. The work stored in the three-dimensional warehouse is carried into a cutting machine by a flat-type loading device, and a product processed by the cutting machine is carried out by a flat-type unloading device. The cut piece of material is returned to the three-dimensional warehouse by the loading device and stored.

[0003]

However, in the above-mentioned conventional three-dimensional warehouse, there is a shortage of stock in the case where the material of the fixed-length material is cut into pieces after cutting, and there are pieces of stock that cannot be stocked. I can't organize them. In addition, when a product processed by a sawing machine is carried out by an unloading device, the product is dropped into a storage box and accumulated, so that there is a problem that a drop sound is high and pollution is caused, so that night operation cannot be performed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems and the like, and includes a pallet capable of storing a plurality of materials therein and a plurality of stages of shelves capable of moving in and out in the left-right direction. A pair of vertical guide plates provided on the front and rear outer surfaces of the shelf frame, and a pallet support portion capable of supporting the pallet on one side in the left-right direction of an elevator apparatus provided vertically movable along the pair of guide plates. And a tracker capable of moving a pallet between the shelf and the pallet support portion is provided in the elevator apparatus so as to be movable in the left-right direction, and a work loading / unloading crane capable of moving up and down along the guide plate is provided. Provided above the elevator device, the work loading / unloading crane is movable left and right in the left and right direction and the tip is freely projectable in the left and right direction from the elevator device. A long guide bar is provided at the end of the provided arm in the front-rear direction, and a plurality of forks capable of holding a material on the pallet supported by the pallet support portion of the elevator device are individually moved back and forth along the guide bar. It is a configuration provided movably.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. In this embodiment, a turret type band saw machine will be described as a cutting machine, but the present invention is not limited to this model.

[0006] To facilitate understanding, the overall configuration of the band sawing machine will first be schematically described.

Referring to FIG. 6, a band saw machine 1 has a plurality of (two in this embodiment) guide posts 5A, 5 on a base 3.
B is erected, and slide brackets 7A, 7B are mounted on the guide posts 5A, 5B so as to be vertically movable.

A turret-type column 9 is provided between the slide brackets 7A and 7B. The column 9 has a rectangular cross section which is long in the left-right direction and has a rectangular cross section. Housing 11a, 11
b, 11c and 11d are provided on both sides of the column 9 with a predetermined gap. The turret type housing 11
A drive wheel 13 is mounted on one side (the right side in FIG. 6) of the turret type housings 11a to 11d.
On the other side of 1d (the left side in FIG. 6), a driven wheel 15 is provided.
Are mounted, the drive wheel 13 and the driven wheel 1
5, a band saw blade 17 is wound.

In order to apply tension to the band saw blade 17 or to loosen it, a slide member 19 and a tension cylinder 21 are provided on the back side of the turret type housing 11a, 11b, 11c, 11d on which the driven wheel 15 is mounted. In the slide member 19, a slide body 23 supporting the driven wheel 15 is slidably mounted. Moreover, the tension cylinder 2
The piston rod mounted on 1 and the slide body 23 are connected.

With the above configuration, the tension cylinder 21
Is actuated to retract the piston rod, the driven wheel 15 is driven by the driven wheel 13 via the slide body 23.
And applies tension to the wound band saw blade 17. Further, when the tension cylinder 21 is operated to cause the piston rod to protrude, the slide body 23 protrudes, and the driven wheel 15 moves to the drive wheel 13 side. For this reason, the tension of the band saw blade 17 is eliminated and the saw blade can be replaced.

The turret type housings 11a to 11
a drive-side guide bracket 27 that supports the rotary drive-side insert holder 25 in a space created in the left-right direction of d.
A driven guide bracket 31 supporting the rotary driven insert holder 29 is provided. The drive-side guide bracket 27 is fixed to the column 9, and the movable-side guide bracket 31 is provided on the column 9 so as to be movable in the left-right direction.

A drive motor 33 for rotating the column 9 by 90 degrees or 180 degrees is provided on the slide bracket 7A, and a positioning device (shown in the figure) for positioning the column 9 after rotation is provided on the slide bracket 7A. (Omitted).

A drive motor 35 is provided on the slide bracket 7A as a drive source for driving the drive wheel 13 mounted on the turret type housings 11a to 11d radially protruding from the column 9. The drive motor 35 is used as a rotation transmitting member by way of a timing belt 37 or the like to reduce the speed of the transmission 39
The rotation of the drive wheel 13 is rotationally transmitted from the output shaft of the reduction gear 39 via a driven system provided in the column 9, though not shown. In order to move the slide brackets 7A, 7B in the vertical direction along the guide posts 5A, 5B, a hydraulically operated swing cylinder 41 erected on the base 3 is connected to the slide bracket 7A.

On the other hand, the movable vice jaw 43 and the fixed vice jaw 45 for gripping and fixing the work are provided on the base 3. The fixed vice jaw 45 is the driving wheel 1
On the third side, that is, on the right side in FIG. 6, the movable vice jaw 43 is provided to be opposed to the fixed vice jaw 45, and a fluid pressure operated cylinder 47 provided on the base 3 is provided. The work is connected to the movable vice jaw 43, and the work is cooperatively held and fixed between the movable vice jaw 43 and the fixed vice jaw 45 by the operation of the cylinder 47. Reference numeral 49 denotes a safety cover that covers rotating equipment.

According to the above-described configuration, the desired cut portion of the work is positioned at the cutting position KK, and the movable vice jaw 43 is operated to cooperate with the fixed vice jaw 45 to hold and fix. Then, one of the turret type housings 11a to 11d provided with the driving wheel 13 on which the desired band saw blade 17 is wound and the driven wheel 15 is positioned by driving the driving motor 33 to the cutting position KK line. I do.

At this time, the turret type housing 1
The column 9 to which 1a to 11d are fixed is a swing cylinder 4
By the operation of No. 1, it is located at the upper limit. Then, tension is applied to the driven wheel 15, which is a normal operation, and the band saw blade 17 is stretched.
7 and the rotary driven insert holder 29 locked to the driven guide bracket 31 set to a predetermined width.
7 is clamped and twisted at a predetermined angle.

Thereafter, the drive motor 35 is driven, the speed reducer 39 is rotated via the timing belt 37, and the rotation is transmitted to the driven system provided in the column 9 to rotate the drive wheel 13. The rotation of the drive wheel 13 causes the band saw blade 17 to travel, and the swing cylinder 41 is operated to lower the band saw blade 17 to perform a cutting process on the workpiece.

Next, a material loading / unloading device which is a main part of this embodiment will be described in detail.

The material loading / unloading device includes a pallet storage shelf 55 for storing the raw material or the scrap material, and a material loading device 51 having an elevator device for moving the pallet of the pallet storage shelf 55 in and out. And
Material unloading device 53 for unloading a product on the exit side of band sawing machine 1
Is provided.

As shown in FIGS. 1, 3 and 4, a pallet storage shelf 55 is provided at the rear position (right side in FIG. 1) of the band sawing machine 1 and stands upright. shelf 59 a plurality of stages are provided in the shelf frame 57, a pallet 61 which houses a plurality of material W _S on the shelf 59 is placed freely and out. In addition, pallet 6
1 is provided with a plurality of wheels 63 and is movable on a shelf 59.

A guide plate 65 is provided on both outer sides in the front-rear direction (left and right sides in FIG. 1) of the shelf frame 57 so as to extend in the up-down direction. Loading / unloading crane 69
, An elevator device 71 is provided via wheels 67 so as to be vertically movable. The work loading / unloading crane 69
Is provided above the elevator device 71 and is movable up and down along the shelf frame 57. A drive system that moves up and down is not shown in the drawing, but is a well-known structure such as a motor for loading and unloading a work through a chain. The crane 69 and the elevator device 71 are individually moved up and down.

In the elevator device 71, the pallet support portion 73 capable of taking out and storing the pallets 61 stored in the pallet storage shelf 55 is moved in the Y-axis direction (the left-right direction) (FIG. 1).
In the direction orthogonal to the paper surface, in FIG.
4 (in the vertical direction in FIG. 4). Then, the pallet 61 stored in the pallet storage shelf 55 is taken out to the pallet support portion 73, or the pallet storage
For example, a tracker or the like having a known configuration is provided in the elevator device 71 to be stored in the elevator device 71.

The work loading / unloading crane 69 has an arm 75 mounted on a crane body 77 movably in the Y-axis direction (left-right direction). The arm 75 is driven by a suitable driving means such as an electric motor via a driving member. To be movable in the Y-axis direction. As shown in FIG. 3, the distal end of the arm 75 can protrude leftward and rightward from the elevator device 71, and the distal end of the arm 75 (the left end in FIG.
On the lower side, a guide bar 81 supporting the forks 79A, 79B extends integrally in the X-axis direction (the left-right direction in FIGS. 1 and 4 and the direction perpendicular to the paper in FIG. 3) which is the front-rear direction. Is provided.

The forks 79A and 79B are mounted on a guide bar 81 via a plurality of wheels 83 so as to be movable back and forth.
Driving means for moving the forks 79A, 79B in the X-axis direction is formed by connecting the forks 79A, 79B via, for example, a chain provided on one side of the guide bar 81 and having a known structure, for example, from torque motors 85A, 85B. I have.

With the above configuration, the forks 79A, 79B
To grip the material W _S in the torque motor 85A, 8
5B through the chain or the like by the allowed to individually driving each fork 79A, 79B can grip the material W _S is opened and closed to the X-axis direction. Further, in order to move the material W _S material W _S to the X-axis direction while holding the, i.e. when loading the material W _S to the band saw 1, to a proper value the voltage of the torque motor 85B to move the fork 79B automatic Drop with. In the opposite direction to the above, that is, when the end piece _WH is carried out from the band sawing machine 1 side to the pallet storage shelf 55, the voltage of the torque motor 85A that moves the fork 79A can be automatically reduced to an appropriate value. Become.

[0026] The fork 79A, the structure of 79B, further In detail, as shown in FIG. 1, the fork 79A, 79B are being produced for shaped relative, material W _S or Hajaku material To support _WH ,
Material receiver 87 protruding from lower ends of forks 79A, 79B
There is formed, the holding surface 89 which abuts held to the side of the material W _S or Hajaku material W _H is formed.

Further, the crane 69 for loading and unloading the work is positioned at the lower limit by the contact of the crane body 77 with the stopper 91 provided on the shelf frame 57.
A support plate 77A is provided so as to protrude from the lower surface of 7 (see FIG. 3).

On the other hand, a feed vise 93 is provided on the material loading side (the right side in FIG. 1) of the band saw machine 1.
Incidentally, the feed device 93 is already omitted because it is known arrangement, the feed device 93 is intended to make the role of feeding the material W _S to the openable and becomes band saw 1 by clamping the material W _S .

A bar 95 is provided on the lower surface on the tip side (left side in FIG. 1) of the feed vise 93 so as to be vertically movable by, for example, a cylinder or the like (not shown). The dimensions are set so that when the bar 95 is raised, a space is formed below the leading end of the feed vise 93 so that the material receiver 87 of the fork 79B can be inserted.

A member indicated by reference numeral 97 is a material feeding table provided in the back and forth direction behind the band sawing machine 1, and a plurality of rollers 101 are rotatably supported on a gantry 99. I have.

With the above configuration, the forks 79A, 79B
In the clamped material W _S is transported on the feed device 93 directly clamps the material W _S in the feed device 93. In this case, the bar 95 is in the ascent limit feed material W _S vice 9
3 and the forks 79A and 79B are made of material W
Along with the bar 95 Once you have separated from _S is lowered, to place the material W _S on Okuzai table 97 to open the feed vise 93 small amount. Then, by clamping the material W _S in the feed device 93 again, the fixed vise jaw 45 provided in the band saw machine 1
And the moving vice jaw 43 into the main body vice jaw.

The material unloading device 53 is shown in FIGS.
Referring to, the product unloading crane 107 is mounted on the gantry 103 via a plurality of wheels 105 in the Y-axis direction via a reduction gear from a known motor, for example, a drive motor.
03 is provided so as to be able to move freely.

The product unloading crane 107 is mounted on the gantry 1
Frame 10 movably mounted in the Y-axis direction on top 03
9, a crane main body 111 movable in the X-axis direction is mounted via a plurality of wheels 113. As a moving mechanism of the crane main body 111, a screw rod 117 is connected to an output shaft of a drive motor 115 fixed to the frame 109, and a nut member 119 screwed to the screw rod 117 is provided on the crane main body 111. .

When the drive motor 115 is driven, the screw rod 117 rotates, and the crane main body 11 is rotated via the nut member 119 screwed to the screw rod 117.
1 will be moved in the X-axis direction.

The crane body 111 has a gripper 12
1 is erected. In this gripping device 121, a boss 125 is vertically and pivotably mounted on a column 123 vertically provided on the crane main body 111, and a drive motor 127 is fixed to the boss 125, and is mounted on an output shaft of the drive motor 127. The small gear 129 is meshed with the large gear 131 engaged with the column 123.

With the above configuration, when the drive motor 127 is driven, the small gear 129 rotates and moves around the large gear 131. That is, the boss 125 turns around the column 123.

A piston rod 135 of a hydraulic cylinder 133 is connected to the boss 125, and the cylinder 133 stands on a base plate 137 rotatably provided at the lower end of the support column 123. .

With the above configuration, when the cylinder 133 is operated and the piston rod 135 is protruded, the boss 12
5 rises, and when the piston rod 135 is contracted, the boss 125 descends.

The boss 125 is provided with an L-shaped gripping claw 141 which is supported by a plurality of guide rods 139 and can be freely opened and closed.
The gripper 141 is connected to a hydraulic cylinder 143 provided on the boss 125, and the gripper 141 can be opened and closed by operating the cylinder. In addition, reference numeral 145 is a storage box for storing the product W _H.

[0040] By constituting such described above, as its effect, for example, to take out the pallet 61 to the material W _S is accommodated to desired from the shelf 59 of the uppermost pallet shelf 55 of the shelf frame 57, a left work loading The elevator device 71 is raised to a vertical position U indicated by a two-dot chain line in FIG. 3 via the support plate 77A of the crane 69.
Then, the material W is moved by the tracker of the elevator device 71.
_The pallet 61 in which _S is stored is taken out and stored in the pallet support portion 73 of the elevator device 71.

Next, the elevator device 71 and the work loading / unloading crane 69 are both lowered, and the work loading / unloading crane 69 comes into contact with the stopper 91 and stops. The elevator device 71 is further lowered to the lower limit as shown in FIG.
Stop at the position indicated by. In the lower limit of the work loading / unloading crane 69, the lower ends of the forks 79A and 79B provided on the guide bar 81 of the arm 75 are located at positions slightly separated from the upper surface of the roller 101 of the material feeding table 97. Further, the forks 79A and 79B are at the standby positions at both ends of the guide bar 81 (the positions indicated by solid lines in FIG. 1).
Is positioned at

From the above state, the forks 79A, 79B
The torque motor 85A, respectively is shifted in a direction to each other closer to the driving of 85B, while being positioned transition than the width of the desired material W _S to be taken out in a predetermined amount greater width, the arm 75 in the Y-axis direction trying to retrieve moved to position the center of the material W _S.

When the positioning of the forks 79A and 79B is completed, the elevator device 71 at the lower limit position D is raised and positioned at the take-out position indicated by N in FIG. The torque motor 85A, fork actuates the 85B 79A, to clamp the material W _S at 79B. Lowering the material W _S to again lowering limit D position an elevator apparatus 71 After the clamp.

[0044] When the elevator system 71 is lowered to advance the arm 75 of the crane 69 out workpiece carry the Y-axis direction, and stops at a position where the material W _S is clamped to the feed device 93, the torque motor 79A, the operation of the 79B by while clamping the material W _S, fed into the feed device 93 moves the X-axis direction, clamps the material W _S in the feed device 93.

[0045] When clamping the material W _S by the feed device 93, the bar 95 which is provided in the feeding device 93 is on the rise, fork 79A, after the 79B has canceled the clamp, vice 93 feed in situ slightly When the amount is opened, the bar 95 descends and becomes the same as the upper surface of the material feeding table 97. Then, it clamps the material W _S in the feed device 93 again, fed the material W _S to the band saw machine 1 and the mobile device jaws 43 is a main body device to the fixed vise jaw 45 inside, clamping the material W _S in body vice A cutting process is performed.

The forks 79A and 79B return to the standby positions at both ends of the guide bar 81, respectively, and the work loading / unloading crane 69 returns to the U position, which is the upper limit, and waits until the band saw machine 1 cuts a predetermined number. are doing. When the work loading / unloading crane 69 is lifted, the band saw blade 1 provided on the turret type housings 11a to 11d provided on the band saw machine 1 is provided.
7, the turret housings 11a to 11d can be rotated by detecting the proximity of a proximity switch (not shown) provided on the fork 79B to avoid the interference.

[0047] Incidentally, in accommodating the Hajaku material W _H remaining processed material W _S at band saw 1 to the pallet shelf 55, the desired pallet shelf 55 by performing the above operation in the reverse it is possible to accommodate the Hajaku material W _H. That is, when the cutting process is completed, the work loading / unloading crane 6
9 is lowered and clamps the Hajaku material W _H on the feed device 93 forks 79A, at 79B, houses the Hajaku material W _H to among the original pallet 61, is desired by the operation of the elevator device 71 The pallet 61 is returned to the pallet storage shelf 55.

[0048] In addition, new to accommodate the material W _S to the pallet 61, a fork of the work carried out for the crane 69, which is equipped to set on the feed vise 93 79A, 7
Clamping the material W _S in 9B, can be accommodated in the desired pallet shelf 55 in the operation of the elevator device 71 is put into the pallet 61. In addition, direct pallet 61 at the factory of the crane if you manage the size of the material W _S
It is also possible to accommodate the material W _S to.

On the other hand, the product W processed by the band sawing machine 1
_M is a product unloading crane 10 equipped with a gripper 121
7 is operated, and the gripper 141 provided on the gripper 121 is operated.
The product W _M is positioned to clamp possible positions. Then, it clamps the product W _M at the gripping claws 141, suitably turning, vertical movement, caused to move laterally by placing the product W _M into housing box 145.

As described above, the pallets 61 are taken out of the pallet storage shelves 55 in a plurality of stages by the elevator device 71, and the material W is transferred to the band sawing machine 1 by the work loading / unloading crane 69.
_S is carried in, and the processed scrap material _WH is stored in the pallet storage shelf 5
5, it is possible to streamline the cutting of the user and to help save manpower. Further, the product is clamped by the gripping device 121 of the product unloading crane 107 and stored in the storage box 145, so that there is no drop sound, the product is not scratched, and the quality is improved and pollution is prevented. Driving can be enabled.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, in the present embodiment, the shelf frame 57 for accommodating the pallet 61 has been described as one place, but the shelf frame 57 can be provided on the opposite side, and in this case, the material change time can be further reduced. .

[0052]

As will be understood from the above description of the embodiment, in the present invention, the shelf frame 57 having the plurality of shelves 59 is provided with the pallet support portion 73 and the shelves 59 and the above-mentioned shelves. An elevator device 71 having a tracker capable of moving the pallet 61 between the pallet support portion 73 and the pallet support portion 73 is provided so as to be vertically movable, and a work loading / unloading crane 69 is provided above the elevator device 71.
Are provided so as to be movable up and down. The work loading / unloading crane 69 is provided with an arm 75 having a tip portion that can freely project sideways from the elevator device 71, and the tip portion of the arm 75 has the pallet support portion of the elevator device 71. A long guide bar 81 is provided in the front-rear direction, which supports a plurality of forks 79A, 79B capable of holding a material on the pallet 61 supported by 73 so as to be movable in the front-rear direction.

Therefore, according to the present invention, the elevator device 71 and the work loading / unloading crane 69 are always vertically overlapped, so that the overall configuration can be made compact.

Even if the work loading / unloading crane 69 and the elevator device 71 are vertically stacked, the work loading / unloading crane 69 can be lifted away from the elevator device 71, When the pallet 61 is moved in and out of each of the shelves 59 of the shelf frame 57 using the elevator device 71, the work loading / unloading crane 6
The pallet 61 can be easily moved in and out of the shelf 59 without the obstruction of the pallet 9.

Further, the work loading / unloading crane 69 is provided with a guide bar 81 movably supporting a plurality of forks 79A, 79B. With the configuration provided at the tip, the elevator device 71
The material on the pallet 61 supported by the pallet support portion 73 can be lifted and carried out.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of the present invention and including a partial cross section of a material loading device.

FIG. 2 is a side view showing a main part of the present invention and showing a partial cross section of the material unloading device.

FIG. 3 is a side view as viewed from the right side in FIG. 1;

FIG. 4 is a plan view of FIG.

FIG. 5 is a plan view of FIG.

FIG. 6 is an explanatory perspective view of a band saw machine according to one embodiment of the cutting machine embodying the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Band sawing machine 51 Material loading device 53 Material unloading device 55 Pallet storage shelf 57 Shelf frame 61 Pallet 69 Work loading / unloading crane 71 Elevator device 79A, 79B Fork 1076 Product unloading crane 121 Gripping device

Claims (1)

(57) [Claims] A plurality of shelves (5) capable of freely moving in and out of a pallet (61) capable of storing a plurality of materials (W _S ) in the left-right direction.
An elevator device (9) in which a pair of vertical guide plates (65) is provided on front and rear outer surfaces of a shelf frame (57) having the inside 9), and provided vertically movable along the pair of guide plates (65). A pallet support portion (73) capable of supporting the pallet (61) is provided on one side in the left-right direction of the pallet (71), and the pallet (61) is placed between the shelf (59) and the pallet support portion (73). A movable tracker is provided on the elevator device (71) so as to be movable in the left-right direction, and a work loading / unloading crane (69) movable vertically along the guide plate (65) is provided above the elevator device (71). Arm (75) provided on the work loading / unloading crane (69) so as to be movable in the left-right direction and the tip end is provided so as to freely project in the left-right direction from the elevator device (71). Of providing a long guide bar (81) in the longitudinal direction of the distal end portion, the elevator apparatus wherein the pallet supported on the pallet support (73) (61) on the material (W _S) of the universal holding of (71) A plurality of forks (79A, 79B) are individually movably movable back and forth along the guide bar (81).
Unloading device.