JP3442526B2 - Shearing machine support conveyor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shearing machine for supporting a work when the work is sheared by a shearing machine and for transferring the work sheared after the shearing. About the support conveyor. 2. Description of the Related Art Conventionally, a support conveyer for supporting a work when shearing the work with the shearing machine and transferring the work that has been sheared after the shearing is arranged behind a lower blade in the shearing machine. I have. As this support conveyor, for example,
There are a swing type known in Japanese Patent Application Laid-Open No. 71021 and the like and a vertical type which moves up and down while maintaining a horizontal posture known in Japanese Utility Model Application Laid-Open No. 3-15021 and the like. In the swing type support conveyor,
When the ram brace that supports the upper blade and the back gauge move up and down integrally, especially when the back gauge is at the back, the amount of lowering at the rear part is also required to avoid interference with the back gauge that descends integrally with the ram. This is required, and the front end of the conveyor on the lower blade side is considerably lower, and is disadvantageous in that the work is supported until immediately before the shearing. In this case, in order to escape from the back gauge, the swing fulcrum also needs to be provided correspondingly behind the movable range of the back gauge, and the support conveyor itself becomes large. On the other hand, an up-down type support conveyor is advantageous in that it can be lowered to the extent that it does not interfere with the back gauge and there is no restriction on the size. [0005] By the way, when the above-mentioned conventional vertical type support conveyor is diverted to a support / return conveyor, a lower blade and a lower blade are required to transport the work smoothly and return the support. It is necessary to make the gap between the conveyors as small as possible, and if you move horizontally up and down on this, the conveyor and the reverse plate presser may interfere,
In addition, there is a problem that the degree of freedom is greatly impeded from the viewpoint of design, for example, a space for discharging the scrap cannot be secured between the conveyor and the lower blade. SUMMARY OF THE INVENTION It is an object of the present invention to enable a smooth flow of a work even when the work is supported, transported, and returned, so that the work is not caught between a lower blade and a conveyor.
It is another object of the present invention to provide a support conveyor for a shearing machine that can discharge scrap, accumulate and convey small-sized workpieces, and can be designed to be compact. [0007] The conventional problems as described above.
In view of the above, the present invention provides a lower blade provided in a shearing machine.
Swing to the front of the base frame located at the rear lower part of
The lower part of the base frame hanging part can be moved back and forth through the shaft
It is provided pivotally, and the front end side is
Rear end of a plurality of upper and lower parallel links pivoted through
To support the conveyor frame hanging part via pins.
The rear end was integrated with the conveyor frame hanging part.
On the conveyor frame, by the shearing machine
A computer that can support the cut work and transport it back and forth.
A conveyor belt is provided so as to be rotatable forward and backward, and
The first drive means for moving the arm up and down
For swinging the base frame vertical portion in the front-rear direction.
This is a configuration including two driving means . An embodiment of the present invention will be described below in detail with reference to the drawings. Since the structure of the shearing machine in the present embodiment is already known, it will be described briefly. Referring to FIG. 5, the shearing machine 1 includes an upright side frame 3, and a lower frame 5 is provided upright at a lower front side of the side frame 3. A table 7 is provided on an upper portion of the lower frame 5 and a lower blade 9 is fixedly provided on a rear end of the table 7. An upper frame 11 is provided on the upper front side of the side frame 5, and a plate holder 13 which is vertically movable by a drive mechanism (not shown) is provided below the upper frame 11. The side frame 3 is provided with a ram 15 which can be moved up and down by a driving device (not shown). A lower portion of the ram 15 is used for shearing a work in cooperation with the lower blade 9. A blade 17 is provided. Further, the lower frame 5
A rear plate holder (not shown) which can be moved up and down by a driving device (not shown) is provided at the rear portion. Reference numeral 19 denotes a shooter. A ram frame 21 is integrated with the ram 15, and a ball screw 23 extending in the front-rear direction (left-right direction in FIG. 5) is rotatably supported below the ram frame 21. . This ball screw 2
A drive motor 25 is connected to a rear portion of the ball screw 3, and a back gauge 27 is screwed to the ball screw 23. The back gauge 27 is provided with an abutting portion 29. With the above configuration, when the drive motor 25 is driven, the ball screw 23 is rotated, so that the back gauge 27 is moved back and forth. Accordingly, the back gauge 27 is positioned under the shear length of the work to be sheared, and the rear end of the work is abutted against the abutting portion 29. The work is sheared by the cooperation of the lower blade 9 and 17. When the work is cut, the plate holder 13 is lowered and the reverse plate holder is used in combination, so that the work is pressed from above and below, so that shearing with good processing accuracy is performed. In the side frame 3 behind the lower blade 9, a support conveyor 3 movable in the front-rear direction is provided.
1 is provided. More specifically, FIGS. 1, 2 and 3
4 and FIG. 4, a traveling rail 33 is laid on the floor so as to extend in the front-rear direction, and the traveling rail 33 is rotatably provided at the lower portions of four corners of a frame-shaped base frame 35. The supported wheel 37 is the bracket 3
Riding through 9. A front portion on the base frame 35 (FIG. 1,
2 and 4, a base frame hanging portion 41 is provided to be able to move back and forth. That is, FIG.
As shown in FIG. 2, the lower portion of the base frame vertical portion 41 is pivotally supported by a swing shaft 43 so as to be able to move back and forth. A rear portion on the base frame 35 (FIG. 1,
Base frame rising portions 45 are integrally provided on the left and right sides (right portion in FIG. 2). Further, a frame-shaped conveyor frame 47 is provided above the base frame 35, and a conveyor frame hanging portion 49 which is hung downward is integrated with a rear portion (the right portion in FIGS. 1 and 2) of the conveyor frame 47. Have been. As shown in FIG. 1, a plurality of upper and lower parallel first and second links 51 and 53 are connected to the conveyor frame hanging portion 49 and the base frame vertical portion 41 by pins 55, respectively. I have. A plurality of conveyor vertical cylinders 57 as first driving means are mounted on the base frame 35, and the ends of piston rods 59 mounted on the conveyor vertical cylinder 57 are fixed to the conveyor frame 47. I have. A second frame is provided on the base frame 35.
A plurality of base frame hanging parts swing cylinders 61 as driving means are attached, and a piston rod 63 mounted on the base frame hanging parts swing cylinder 61 is fixed to the front part of the first link 51. I have. A conveyor drive motor 67 is provided at a lower portion of the conveyor frame 47 at a substantially central portion in the front-rear direction via a motor base 65. A pulley 69 is mounted on an output shaft of the conveyor drive motor 67. I have. A belt 73 is wound around this pulley 69 and another pulley 71. A shaft 75 extending in the left-right direction is mounted on the pulley 71, and a driving pulley 77 for a conveyor is mounted on both ends of the shaft 75. Further, a conveyor driven pulley 79 is provided at both ends at the front end of the conveyor frame 47. A conveyor belt 81 is wound around the conveyor driven pulley 79 and the conveyor driving pulley 77. With the above structure, when the conveyor vertical cylinder 57 is operated, the conveyor frame 47 is moved to the first position via the piston rod 59 as shown in FIG.
The link 51 and the second link 53 move up and down in a horizontal state, and are positioned at three positions indicated by arrows A, B, and C. That is, at the position A, the conveyor belt rises to the pass line, and the upper blade 17 and the lower blade 9 support and lower the work when shearing the work. At the position B, the horizontal movement is performed while slightly retreating from the position at the position A, and the work which has been sheared is discharged in this state. The position C is inclined and positioned rightward by operating the swing cylinder 61 of the vertically extending base frame. In this state, the scraps on the conveyor belt 81 are conveyed to the conveyor belt 81 by rotating the conveyor belt 81 in a counterclockwise direction by rotating the conveyor drive motor 67 in the counterclockwise direction. It falls from the shooter 83 provided on the driven pulley 79 side, and is stored in the scrap box 85 provided behind the lower frame 5. When the conveyor drive motor 67 is driven, the shaft 75 is rotated via the pulley 69, the belt 73 and the pulley 71. Since the conveyor drive pulley 77 is rotated by the rotation of the shaft 75,
Conveyor drive pulley 77 and conveyor driven pulley 79
Then, the conveyor belt 81 wound around is rotated. In FIG. 1, an alignment plate 87 and a piler 89 for arranging sheared workpieces in an aligned manner are movably provided at the upper right end of the base frame rising portion 45. The piler 89 is vertically movable.
1 and a support plate 93 that can be moved in the front-rear direction by the length of the work W that has been sheared on the stacking table 91. Accordingly, in the state of the position B, the work W which has been subjected to the shearing process on the conveyor belt 81 is rotated clockwise by rotation of the conveyor belt 81 so that the alignment plate 87 and the support plate 93 are moved from the conveyor driving pulley 77 side. And is accumulated on the accumulation table 91. As described above, the conveyor vertical cylinder 57
When the conveyor frame 47 provided with the conveyor rises via the first link 51 and the second link 53 by the operation of
6, the tip of the conveyor, that is, the driven pulley 79 for the conveyor is approached until immediately after the lower blade 9 or a reverse plate press (not shown) immediately behind the lower blade 9, and when the conveyor frame 47 is lowered, , FIG.
In the lower position, the tip of the conveyor, that is, the driven pulley 79 for the conveyor can be approached immediately after the shooter 19 or the reverse plate holder (not shown), so that a smooth work flow can be achieved even when the work is supported, transported, and returned. Can be made possible. The conveyor frame 47 having a conveyor composed of the conveyor driving pulley 77, the conveyor driven pulley 79 and the conveyor belt 81 is horizontally moved by the operation of the conveyor vertical cylinder 57, so that the back gauge 2 is used.
7 can be supported by the conveyor without being concerned about the interference with the workpiece 7 during the shearing process.
Swings in the front-rear direction by the operation of the base frame vertically extending swing cylinder 61, and can be tilted backward, so that a scrap discharge space is formed between the tip of the driven driven pulley 79 for the conveyor and the lower blade 9 and the like. . Therefore, the scrap can be easily discharged from this space, and the scrap and the work can be prevented from being mixed and conveyed by the conveyor. Since the tip of the conveyor driven pulley 79 can be brought to the position immediately after the lower blade 9 and the like, it is advantageous for work support and can return to a work having a short front-rear width. Since there is a mechanism for accumulating particularly narrow workpieces on the conveyor belt 81 and returning them to the table 7 side, the workpieces are sheared one by one and accumulated on a piler 89 provided at the rear. Alternatively, it is possible to accumulate the narrow workpieces on the conveyor belt 81 and return it to the front when the number of sheets reaches a certain number. The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. As will be understood from the above description of the embodiments, according to the present invention, a conveyor having a conveyor
The frame is kept horizontal by the operation of the first drive means and moves up and down
Because the interference with the back gauge is small,
The amount of downward escape of the holding portion can be reduced. Also,
The base frame hanging portion is moved in the front-rear direction by the operation of the second driving means.
Swinging to the rear so that it can
A scrap discharge space is formed between the end and the lower blade
To make it easy to discharge scraps from this space.
Work can be mixed with scraps on a conveyor
It can be prevented from being transported. Also conveyor
The tip of the work can be brought right after the lower blade etc.
In addition to being advantageous in terms of support, the return is also short for front and rear workpieces
It is possible . [0038]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view in which a support conveyor is provided behind a shearing machine according to an embodiment of the present invention. FIG. 2 is a side view of the support conveyor in FIG. FIG. 3 is a plan view of a support conveyor. FIG. 4 is a rear view of the support conveyor. FIG. 5 is a side view showing a shearing machine and a support conveyor. FIG. 6 is an operation explanatory view on the front end side of the support conveyor. [Description of Signs] 1 Shearing machine 7 Table 9 Lower blade 13 Plate holder 17 Upper blade 19 Shooter 27 Back gauge 31 Support conveyor 35 Base frame 41 Base frame hanging part 47 Conveyor frame 49 Conveyor frame hanging part 51 First link 53 No. 2 link 57 Conveyor vertical cylinder (first driving means) 61 Base frame hanging part swing cylinder (second driving means) 77 Conveyor driving pulley 79 Conveyor driven pulley 81 Conveyor belt 105 Detection sensor

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B23D 33/00-33/02 B65G 21/12 B65G 21/14

Claims (1)

(57) [Claims] [Claim 1] Lower blade provided in a shearing machine (1)
Of the base frame (35) arranged at the lower rear part of (9)
Base frame vertically suspended via swing shaft (43) on the front side
The lower part of the part (41) is provided pivotably so as to be movable back and forth.
A pin (55) is attached to the front end side of the base frame hanging part (41).
Upper and lower parallel links (51, 5)
3) Conveyor frame via pin (55) on the rear end side
A hanging part (49) is provided pivotally, and the conveyor frame is provided.
Conveyor frame with rear end integrated with hanging part (49)
(47) is cut by the shearing machine (1).
It supports the cut work (W) and can be transported in the front-rear direction.
A conveyor belt (81) is provided so as to be rotatable forward and backward,
First drive for vertically moving the conveyor frame (47)
Means (57) and said base frame vertical portion
Second drive means (6) for swinging (41) forward and backward.
1) A shearing machine characterized by having
Turn conveyor .