JPH0640184Y2 - Plate material stacking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a plate material accumulating device that receives and accumulates plate materials from a plate material processing device such as a turret punch press or a shearing machine. More specifically, the present invention relates to a plate material accumulating device capable of efficiently dropping and accumulating plate materials by advancing and retracting the plate material supporting portion by a stroke corresponding to the dimension of the plate materials.

(Prior Art) As a configuration of a conventional plate material accumulating device, there is a configuration in which a pusher member attached to an end of the plate material accumulating device pushes the plate material laterally with respect to the transport direction and accumulates it on a carriage. In addition, there is a configuration in which a tilting device that can tilt freely is provided at the rear part in the transport direction and the plate materials are dropped and accumulated on a carriage.

(Problems to be solved by the invention) In the former configuration, the pusher member must move laterally by the length of the width of the conveying line regardless of the size of the plate material. , The tilting device had to tilt at a constant angle regardless of the size of the plate material.

That is, since a constant stroke is always required to carry the plate material regardless of the size of the plate material, there is a problem that a tact time is required and work efficiency is poor.

Therefore, in order to solve the above-mentioned problems, it is an object of the present invention to provide a plate material stacking device which advances and retreats the plate material support portion by a stroke corresponding to the dimension of the plate material and drops and stacks the plate material to reduce the tact time.

[Structure of the Invention] (Means for Solving the Problems) In view of the conventional problems as described above, the present invention is provided with a pair of endless traveling members that can be driven to travel in the sheet conveying direction in parallel. , A plurality of rollers rotatably supported on both ends of the two traveling members are provided over an appropriate length range in the transport direction of the two traveling members, and a rotation for giving a rotational force to each of the rollers. A stack of plate materials provided with a device for detecting the plate material which is supported by each of the rollers and has been transported to the downstream side in the transport direction to drive the traveling member to drive and travel in the upstream direction of the transport direction. In the apparatus, a drop detection device for detecting the fall of the plate material and switching the driving traveling direction of the traveling member to the downstream side of the transportation direction is provided at a position close to the end side roller on the downstream side of the transportation direction. Thing .

(Operation) In the above configuration, the roller supporting the plate material is appropriately rotated by the rotating device to advance the plate material in the downstream direction of the transport direction. Then, the plate member comes into contact with the stopper device provided at an appropriate position in the transport direction, so that the traveling member that rotatably supports the roller retracts in the upstream direction of the transport direction. At this time, the plate material is in contact with the stopper device because the rollers are rotating. Further, as the traveling member retracts in the upstream direction of the transport direction, the roller supporting the plate material retracts in the upstream direction of the transport direction and the plate material falls. At this time, the fall of the plate material is detected by a drop detection device provided in the vicinity of the roller on the end side on the downstream side in the transport direction, and the traveling member is switched again to the forward direction in the transport direction. Therefore, the movement stroke of the rollers of the plate material supporting portion in the conveying direction is determined according to the size of the plate material, the tact is shortened, and the accumulating accuracy is improved.

(Example) Referring to FIG. 1, a plate material stacking apparatus 1 according to this example.
Has a first stacking device 3 on the rear side (right side in FIG. 1) and a second stacking device 5 on the front side (left side in FIG. 1).

A base plate 7 extending in the front-rear direction is provided below the plate material stacking device 1. On both the left and right sides of the base plate 7 (both the front and back sides facing the paper in FIG. 1),
A plurality of pillar members 9, 11 and 13 are appropriately erected. An upper frame 15 extending in the front-rear direction is provided in parallel with the upper portions of these column members 9, 11, 13. The upper frame 15 is composed of a first upper frame 15a in the first stacking device and an upper frame 15b in the second stacking device. A rear member 17 is provided upright between the left and right support members 9.

A rotating device 19 extending in the front-rear direction is provided on the upper left portion of the base plate 7 (upper rear portion toward the paper surface in FIG. 1).
To provide. The rotating device 19 includes a first rotating device 19a on the rear side and a second rotating device 19b on the front side.

More specifically, pulleys 21 and 23 are rotatably provided on the front and rear portions of the inner surface of the left first upper frame 15a, and pulleys 25 and 27 are rotatably provided on the front and rear portions of the inner surface of the left second upper frame 15b. A pulley 29 is attached to the pulley 23, a pulley 33 is attached to the motor 31 which is appropriately mounted on the rear plate 17, and an interlocking pulley 35,
37 are integrated into each. An interlocking pulley 39 is rotatably provided on a bracket 41 fixed to the upper part of the column member 11. A drive belt 43 is wound around the pulleys 29 and 33 to transmit the driving force sent by the motor 31. The pulley 21 and the pulley 23 have a first belt 45,
A second belt 47 is wound around each of the pulleys 25 and 27. An interlocking belt 49 is wound around the interlocking pulleys 35, 37, 39 for transmitting the driving force of the motor 31 to the second belt 47. A pressing roller 51 is provided between the left and right upper frames 15 to prevent the first and second belts 45 and 47 from being loosened.
Are provided appropriately.

Therefore, when the motor 31 is driven, the drive belt 43 travels, and the first belt 45 travels in the same direction as the drive belt 43 through the pulley 23 provided integrally with the pulley 29. In addition, the interlocking belt 49 wound around the pulleys 35, 37, 39
The second belt 47 moves in the same direction and in synchronization with the first belt 45 via.

Below the first and second belts 45 and 47, as shown in FIG. 1, a traveling member 53 having a substantially L-shaped traveling path and an endless shape.
Is provided. In this embodiment, the traveling member 53 includes a pair of rear first chains 53a and a pair of front second chains 53a.
It is composed of a chain 53b. Also, the left and right support members 11
A first cylinder device 55 in the up-down direction is interposed between them, and a second cylinder device 57 is interposed between the left and right support members 13.

More specifically, sprockets 59, 61 are rotatably provided on the front and rear inner surfaces of the left and right first upper frames 15a, and similarly, on the front and rear inner surfaces of the left and right second upper frames 15b,
Sprockets 63 and 65 are rotatably provided. Sprockets 67 and 69 are rotatably provided on the inner surfaces of the left and right strut members 11, and sprocket 71 and 73 are rotatably provided on the inner surfaces of the left and right strut members 13 similarly. The drive sprockets 75 and 77 are integrally attached to the sprockets 69 and 73, respectively.
The sprocket 69, 73 is also rotated by the rotation of. Further, the sprocket 67,71 is provided with a first and a second cylinder sprocket (not shown) which are rotatable via the same central axis, and the cylinder sprocket does not rotate in synchronization with the sprocket 67,71. , Individually rotatable.

A first cylinder 79 is provided on a cylinder bracket (not shown) appropriately fixed to the inner surfaces of the left and right support members 11.
Similarly, a second cylinder 81 is provided on a cylinder bracket (not shown) that is appropriately fixed to the inner surfaces of the left and right support members 13. The first and second cylinders 79 and 81 are provided with vertically movable first and second piston rods 83 and 85, respectively.

The first chain 53a is wound around the sprockets 59, 61, 67, 69, and similarly, the second chain 53b is wound around the sprockets 63, 65, 71, 73. A first drive chain 87 is wound around the drive sprocket 75 and the first cylinder sprocket, and similarly, a second drive chain 89 is wound around the drive sprocket 77 and the second cylinder sprocket. The first piston rod 83 is attached to a part of the first drive chain 87.
Of the second drive chain 89 is similarly connected to the tip of the second piston rod 85.

Therefore, when the first piston rod 83 is raised,
The drive chain 87 travels in the clockwise direction in FIG. 1, and the first chain 53a travels in the clockwise direction in synchronization with the first drive chain 87 via the sprocket 69 provided integrally with the sprocket 75. Also, the first piston rod 83
When is lowered, the first drive chain 87 runs counterclockwise in FIG. 1, and the first chain 53a runs counterclockwise in synchronization with the first drive chain 87. In addition,
The above-described operation of the first chain 53a, the first drive chain 87, and the first cylinder device 55 is the same as that of the second chain 53b, the second drive chain 89, and the second cylinder device 57.

On the upper side of the pair of first and second chains 53a and 53b, both ends of a roller 91, which is rotatable over a half or less of the first and second chains 53a and 53b, are attached at regular intervals.

More specifically, as shown in FIG. 3, the roller 91 has a structure in which a roller bearing 95 and a roller shaft 97 are provided in a cylindrical roller 93.
A roller bracket 101 having a bearing 99 is fixed to the first chain 53a in order to rotatably hold the roller. A chain supporter 103 is provided at a position where the first upper frame 15a corresponds to the first chain 53a so that the weight of the roller 91 does not cause the first chain 53a to hang between the front and rear sprockets 59 and 61. ing. The upper surface of the cylindrical roller 93 is in contact with the first belt 19a, and the cylindrical roller 93 is rotated by the traveling of the first belt 19a. The configuration of the roller 91, the first chain 53a, and the first belt 19a is the same as the configuration of the roller 91, the second chain 53b, and the second belt 19b.
A rotatable roller 92 is provided on the rear side of the first upper frame 15a and the front side of the second upper frame 15b.

On the rear side (right side in FIG. 1) of the first and second stacking devices 3 and 5, first and second stopper devices 105 and 107 that can move up and down are provided to stop the progress of the plate material.

More specifically, referring to FIG. 4, FIG. 5, and FIG.
A support bracket 109 is fixed to the left and right pillar members 9, and an L-shaped frame 111 is attached to the support bracket 109. A stopper cylinder 113 is attached to the L-shaped frame 111, and a vertically movable piston rod 115 is provided on the cylinder 113. The bracket 117 fixed to the upper part of the piston rod 115 is attached to the stopper member 119. The stopper member 119 corresponds to the stopper members 119a and 119b in the first and second stopper devices 105 and 107. Guide members 121 and 123 are provided on both front and rear side surfaces (left and right side surfaces in FIG. 4) below the stopper member 119a, and a guide roller 125 guides the guide members 121 and 123 and a front surface of the guide member 121 (in FIG. 6). The left side surface) is rotatably abutted on the rear surface (right side surface in FIG. 6) of the guide member 123. An elastic member 127 such as rubber is attached to the plate member collision portion (upper left side in FIG. 5) of the stopper member 119a. Further, a contact detection device 129 such as a shock sensor or a limit switch is provided at an appropriate position of the stopper member 119a in order to detect the contact of the plate material and operate to retract the first chain 53a. The configuration of the first stopper device 105 provided in the first stacking device 3 is the same as the configuration of the second stopper device 107 provided in the second stacking device 5.

First and second fall detectors 131 and 133 are provided below the rearmost roller (the rightmost portion in FIG. 1) which is attached to the first and second chains 53a and 53b.

More specifically, referring to FIG. 7, in the present embodiment, pins 135 are provided on the protruding portions of the left and right roller brackets 101.
A flapper member 137 that can swing freely is provided. A spring 139 is appropriately mounted between the flapper member 137 and the roller bracket 101. A drop detection sensor 141 such as a limit switch is provided at an appropriate position on the lower surface of the roller bracket 101. The fall detection sensor 141 is for detecting the fall of the plate material when the frontmost portion (the leftmost portion in FIG. 1) of the plate material comes into contact with the flapper member 137, and advances the retracted first chain 53a again. .

In addition, the fall detection device 131 provided in the first stacking device 3 described above.
The same applies to the configuration of the fall detection device 133 provided in the second stacking device 5.

Referring to FIG. 1, on the base plate 7,
In each of the first and second stacking devices 3 and 5, a carriage 143 is provided for stacking the plate material W. Casters 147 are rotatably attached to the leg portions 145 of the carriage so that the carriage 143 can move in the front-rear direction and the left-right direction (the left-right surface direction toward the paper in FIG. 1).

With the above configuration, the transport process of the plate material W will be described with reference to FIG. 8. In order to accumulate the plate material W in the first stacking device 3, from FIG. 8 (a) to FIG. 8 (e), The stopper member 119b is descending. Now, the rotating devices 19a, 19b
Then, each roller 91 is rotated to feed the plate material W, and the rearmost part (the rightmost part in FIG. 8) of the plate material W contacts the stopper member 119a. Contact detection provided on this stopper member 119a. The device 129 operates and the first chain 53a is retracted (see FIGS. 8 (b) and 8 (c)). At this time, since the first belt 45 is driven, the plate material W is in contact with the stopper member 119a.

The first chain 53a is retracted, and the roller 9 provided with the flapper member 137 to the frontmost portion of the plate material W (the leftmost portion in FIG. 8).
When 1 is retracted (see FIG. 8 (c)), the frontmost part of the plate material W contacts the flapper member 137 (see FIG. 8 (d)),
The first drop detection device 131 provided on the flapper member 137 operates and the first chain 53a advances again (see FIG. 8 (e)).

When the stacking of the plate material W on the carriage 143 provided in the first stacking device 3 is completed, the second stacking is performed by performing the carrying operation performed by the first stacking device 3 with the stopper member 119b raised. The plate material W can be accumulated by the device 5 (see FIG. 8 (f)).

Further, by not stacking the plate material W on the first stacking device 3 and keeping the stopper members 119a, 119b in a lowered state,
It is possible to feed the plate material W to the next process behind the first stacking device 3 (on the right side in FIG. 8).

It should be noted that the present invention is not limited to the above-described embodiment, and, for example, a belt may be used instead of the first and second chains 53a and 53b, and other than the first and second accumulating devices 3 and 5. It is also possible to add a device or to use various optical devices or other non-contact sensors as various detection devices, and it is also possible to carry out other types of embodiments by making appropriate changes.

[Effects of the Invention] As will be understood from the above description of the embodiments, in short, the present invention is provided with a pair of endless traveling members (53a) which are driven and movable in the plate material conveying direction in parallel, A plurality of rollers (91) rotatably supported at both ends by both traveling members (53a) are provided over an appropriate length range in the transport direction of both traveling members (53a), and each roller ( 91) is provided with a rotating device (19) for applying a rotational force, and the plate member supported by the rollers (91) and conveyed to the downstream side in the conveying direction is detected and the traveling member (53a) is conveyed. In the plate material stacking device provided with a detection device (129) for driving and traveling in the upstream direction of the direction, the traveling member is detected at a position close to the end side roller on the downstream side in the transport direction and the plate member is detected. Driving direction of (53a) is downstream of the transport direction Fall detection device for switching (13
1) is provided.

As is apparent from the above-mentioned configuration, in the present invention, among the plurality of support rollers 91 rotatably supported at both end sides by a pair of endless traveling members 53a that can be driven to travel in the conveying direction of the plate material, In the position close to the end side roller on the downstream side in the direction, the traveling member is detected by detecting the reliable fall of the plate material.
Since the driving member 53a is provided with the fall detection device 131 for switching the traveling direction to the downstream side of the transport direction, the traveling member 53a is switched to the downstream direction of the transport direction immediately after the plate member is dropped. In addition, the takt time is shortened and the efficiency of stacking the plate materials can be improved.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view of a plate material stacking apparatus. FIG. 2 is a plan view of FIG. FIG. 3 is an enlarged view of the roller mounting. FIG. 4 is a sectional view taken along the line IV-IV in FIG. Fifth
The drawing is a sectional view taken along the line VV in FIG. FIG. 6 is a sectional view taken along the line VI-VI in FIG. 7th
The figure is an enlarged perspective view of the fall detection device. FIG. 8 (a),
(B) (c), (d), (e), (f) are operation explanatory views of the roller. 1 ... Plate material stacking device, 53 ... Traveling member 91 ... Roller, 105 ... Stopper device 129 ... Fall detection device

Claims (1)

[Scope of utility model registration request] 1. A pair of endless traveling members (53a) which can be driven to travel in the sheet material conveying direction are provided in parallel, and a plurality of end portions are rotatably supported by the traveling members (53a). The roller (91) is provided over an appropriate length range in the transport direction of the traveling members (53a), and a rotating device (19) is provided to apply a rotational force to the rollers (91).
A detection device (129) for detecting the plate material supported by the rollers (91) and conveyed to the downstream side in the conveying direction to drive the traveling member (53a) to drive and travel in the upstream side of the conveying direction. In the plate material accumulating device provided, in order to switch the driving traveling direction of the traveling member (53a) to the downstream direction in the transport direction at a position close to the end side roller on the downstream side in the transport direction and detecting the fall of the plate material. Fall detectors (131)
A plate material stacking device comprising: