JPS6119863Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for carrying in plate materials, and more specifically, a numerically controlled positioning and conveying mechanism (hereinafter simply referred to as a carriage) that carries the plate materials onto the table of a plate processing machine. This invention relates to an improvement of a plate material carrying device for processing plate materials.

Conventionally, the carrying-in device used to carry in plate materials as described above uses a roller conveyor to feed the plate materials to a position exceeding the reference origin of numerical control, and then moves the plate materials to the adjacent reference point to the reference origin. A method was adopted in which two sides were pulled back, and the device was complicated, including a mechanism for making the reference block appear and disappear from the top of the table. In addition, the necessity of pulling back caused a time loss and caused problems in terms of efficiency.

The present invention was developed to overcome the above-mentioned drawbacks, and when carrying a plate onto the table of a plate processing machine, the feed roll is stopped while the end of the plate is being clamped, and the feed roll is stopped immediately. The time loss is reduced by gripping the carriage again, and after touching the baton, both the upper and lower rolls of the pinch rolls are moved away from the path line of the plate material to prevent the rollers from rotating when the plate material is rotated, especially when trimming the four sides of the plate material. To provide a simple and compact board carrying device without interference. In addition, it should be noted that it is natural that it is also effective to use the pinch rolls on the unloading side in that the plate material does not interfere with the upper and lower rolls of the pinch rolls when the plate material is rotated. be.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

In Figures 1 and 2, 1 is the pinch roll, 3 is the plate processing machine table, 5 is the carriage, 7 is the shearing machine, 8 is the shearing machine table, 9 is the carriage retraction clamp, 11 is a clamp, 13 is a turntable, 15 is a suction device provided on the top surface of the turntable, 17 is a carry-out roll, 19 is a plurality of reference gauges arranged in a row, 21 is a reference gauge with one of the plate materials.
It is a retraction clamp that matches the sides.

Turning to FIG. 3, FIG. 3a is a plan view of the pinch roll, FIG. 3b is a sectional view at the center, FIG. 3c is an elevational view, and FIG. 3d is a side view thereof. 23 is a lower roll, 25 is an upper roll, 27 is a lower roll support swing plate, 29 is an upper roll support swing plate, 31 is a lower roll rotation shaft, 33 is an upper roll rotation shaft, and 35 are all pinch rolls. It is a frame. Also, 37 is a joint plate for the left and right lower roll support swing plates, 39 is a joint angle pipe for the left and right upper roll support swing plates, 41 is a motor stand, 43 is an electric motor, and 45 is a drive sprocket attached to the motor shaft. , 47 is a chain, 49 is a driven sprocket fixed to the lower roll shaft, and 51 is a lever attached to the fixed shaft of the upper roll, which holds a micro switch 53 at the lower end. Reference numeral 55 denotes fluid pressure cylinders, and there are two on the left and right, one end of which is pivoted to the lower end protrusion 57 of the lower roll support swing plate 27, and the other end is pivoted to the frame 35. When the piston rod of this fluid pressure cylinder 55 is most contracted (states shown in FIGS. 3b and 3d), the upper surface of the lower roll 23 passes through the plate material path as shown by the two-dot chain line in FIG. 3b. It occupies a low position away from the line. The pin 59, which is best shown in FIG. 3d, is a pin provided on the upper projection of the lower roll support swing plate 27.
is in constant contact with the spring 63 by the action of the spring 63. Therefore, when the piston rod of the fluid pressure cylinder 55 is extended to position the upper surface of the lower roll 23 lower than the pass line as described above, the pin 59
The projecting portion 61 of the upper roll support swing plate 29 is
3, and the upper roll 25 is also located at a height away from the upper surface of the plate material. This is because the spring 63 has its lower end fixed to the frame 35 and its upper end fixed to the upper roll support swing plate 29, and constantly pulls the upper roll support swing plate downward.
65 is a non-contact switch attached to the frame 35 by an appropriate means slightly lower than the pass line of the plate material, and the position shown in FIG. be. Figure 4,
Moving on to the explanation of FIGS. 5 and 6, the reference gauge 19 and the retraction clamp 21 described above will be explained. As shown in Fig. 1, a plurality of reference gauges 19 lined up in a row and one retracting clamp 21 are used when pulling back a board and aligning one side with the reference gauge. The timing is set so that it does not fall below the pass line of the plate material and interfere with the transition of the plate material. That is, 67 shown in FIG. 4 is a swinging body frame, one end of which is swingably supported by the upper ends of two arm supports 69 fixed to the frame of the table 3, and the other end of which is supported by the frame of the table 3. The piston rod 73 of two fluid pressure cylinders 71 is swingably supported on the piston rod 73, and as shown in FIG. It is something to do. To further explain the parts,
75 is a ball joint, 77 is a free ball bearing whose illustration is omitted except for the reference gauge at the left end, 79 is a connector to the piston rod 73 provided under the swinging end side of the swinging frame, and 81
is the swing lower limit regulation bolt.

The retractable clamp 21 is assembled in a square shape by a sliding base 83, a lower clamp plate 85, a front support plate 87, and a rear support plate 89. The board 85 is supported by two free ball bearings 91, guided by left and right guide pins 93, has a piston rod 95 with one end pivoted to the swing frame, and a fluid pressure cylinder 97 fixed to the lower surface of the sliding base 83. Due to this action, it is possible to move freely in the left and right directions in FIG. Furthermore, the movable arm 99 of the retraction clamp 21 is
The lower plate of the clamp is fixed to the shaft 101, and the piston rod 105 of the hydraulic cylinder 103 grips the plate material, and the springs 107, 10
The grip is released by the action of 9. 111 is a fixed clamp claw, 113 is a movable clamp claw, and 115 is a spring provided between the sliding base 83 and the swing frame 67. 117 to 123 are all micro switches, 117 detects that the plate has been pulled to the reference gauge position, and 119
Confirm that the swing frame has descended, and press 121.
12 indicates that the retraction clamp 21 has moved forward.
3 is for detecting that the retracting clamp 21 has retreated and emitting a signal.

The embodiment of the present invention detailed above operates as follows.

The reference gauge 19 and the retraction clamp 21 are recessed below the plate pass line on the table surface, and a new plate is fed in from the bottom of FIG. 1 using a roller conveyor or the like. While the plate material is being carried in, the upper and lower pinch rolls keep the piston rod of the fluid pressure cylinder 55 in the most depressed state as shown in FIGS. 3b and 3d, and the upper roll 25
The electric motor 43 continues to rotate while the plate material is held between the lower roll 23 and the lower roll 23. Non-contact switch 6
After the motor 5 detects the end of the plate, a timer included in the control device causes the electric motor 4 to
3 is stopped, and the conveyance of the plate material is stopped while the ends of the plate material are gripped by the upper and lower rolls. Next, the carriage 5 moves closer to the pinch roll side, and the retracting clamp 9 first grasps the plate, pulls the plate to the reference block position at the base of the clamp 11, and clamps it, completing the so-called baton touch described above. . At this point, the hydraulic cylinder 55 operates to rotate the lower roll support swing plate 27 around its axis 31, lowering the lower roll 23 from the bus line, and at the same time lowering the pin 59 and the upper roll support swing plate 29. The upper roll 25 also leaves the pass line and rises due to the action of the lower end protrusion 61.

A carriage 5 carries the plate material to a shearing machine 7, positions it, and cuts one side of the plate material. The carriage 5 carries the plate material to the top of the turntable 13,
When the suction device 15 finishes suctioning the plate, the clamp 11 of the carriage releases the plate. The turntable 13 rotates the plate 90 degrees.

At this time, since both the upper and lower rolls of the pinch roll 1 are away from the pass line, there is no possibility that the diagonal corners of the plate material will interfere with the pinch roll.

Next, the carriage 5 sets one end of the plate to the reference gauge 1.
Carry it close to 9 and open the board once. The reference gauge 19 and the retraction clamp 21 rise above the pass line under the action of the fluid pressure cylinder 71, and the retraction clamp 21 pulls the plate until it comes into contact with the reference gauge, and then re-clamps the plate to the carriage 5. After the reference gauge and its retracting clamp are lowered below the pass line of the plate, the carriage moves forward to position the next side of the plate on the shearing machine and cut it. Thus, 4 of the planks
When the trimming of the sides is completed, the carriage 5 transports the board to the carry-out roll 17, and the work of trimming the four sides of one board is completed.

In the above operation explanation, we have explained the trimming work on four sides as an example, so for each side trimming, there are tasks such as applying a reference gauge and changing the grip of the carriage to ensure perpendicularity between the adjacent sides. During punching and blanking work, there is no need to change grips during the work, and the carriage is clamped immediately after the first pinch roll is carried in. When the turntable rotates, there is no obstruction on the pass line where the diagonal corner of the plate interferes. This is an excellent improvement that overcomes the problems mentioned at the beginning from the point of view of improving efficiency.

[Brief explanation of the drawing]

Fig. 1 is an explanatory plan view showing the arrangement of the present invention, Fig. 2 is an elevational view thereof, Fig. 3a is a plan view of the pinch roll device, Fig. 3b is a central sectional side view, FIG. 3c is a front view of the pinch roll device, and FIG. 3d is a side view of FIG. FIG. 4 is a plan view illustrating a device for raising and lowering the reference gauge and its retracting device from the pass line, FIG. 5 is a cross-sectional view along the - arrow in FIG. , is a cross-sectional view taken in the direction of the - arrow in FIG. 4. Explanation of the symbols representing the main parts of the drawings: 1... Pinch roll, 3... Table, 5... Carriage, 13... Turntable, 19... Reference gauge, 21... Retraction clamp, 27... Lower roll support Swing plate, 29...Top roll support swing plate, 3
1...Lower roll rotation axis, 33...Upper roll rotation axis, 55...Fluid pressure cylinder, 59...Pin, 6
1... Lower end protrusion, 67... Swing frame, 99
...Movable arm, 111...Fixed clamp claw, 113
...Movable clamp claw.

Claims (1)

[Scope of utility model registration request] A plate material carrying device is used to carry a plate material from the end of a belt conveyor or the like onto a table provided in front of a plate material processing machine, and a pair of pinch roll frames protruding from one side wall of the table are each connected to a pair of upper roll wheels. The pair of lower rolls is provided with an upper roll support rocking plate that can swing freely around a rotating axis in a vertical plane, and a lower roll support rocking plate that can swing freely around a lower roll rotation axis in a vertical plane. The lower roll is supported at both ends by the support swing plate and is driven via a chain or sprocket driven by an electric motor provided on one of the lower roll support swing plates, and its upper surface is placed on the table. It is located at the same level as the lower surface of the plate material that occupies the passed line, and between the pair of upper roll supporting swing plates, the plate material on the lower roll is brought into contact with and driven by the biasing force of the bullet, which will be described later. A rotatable upper roll is provided, and a bullet is provided between a part of the upper roll support swing plate and the lower roll support swing plate for biasing the upper roll and the lower roll toward each other. Further, a fluid pressure cylinder is provided in the pinch roll frame to resist the biasing force of the bullet and move the lower roll support swinging body away from the upper roll support swinging plate, and a hydraulic cylinder is provided between the upper and lower roll rotation shafts. A plate material carrying device characterized in that an upper roll support swing plate is provided with a protrusion that a pin member provided on the roll support swing plate comes into contact with.