JP2005334939A - Blank feeding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blank feeding apparatus with which it is possible to feed a plurality of blanks simultaneously and the interval adjustment of stacks such as narrowing the interval between fed blanks is facilitated. <P>SOLUTION: The blank feeding apparatus is provided with a loading device 32 for loading plate-like blanks B1, B2 to be fed to a press main body 11 in a stacked state and a conveying means for conveying the blanks B1, B2 from the loading device 32 to the press main body 11. The loading device 32 is composed of a left receiving base 41 and a right receiving base 42, a left lifter 43 for lifting and lowering the left receiving base 41 and a right lifter 44 for lifting and lowering the right receiving base 42 and a left crane saver 45 for moving the blanks B1, B2 on the left receiving base 41 in the right and left directions and a right crane saver 46 for moving the blanks B1, B2 on the right receiving base 42 in the right and left directions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a blank supply device suitable for supplying plate-shaped blanks, particularly various types of blanks, to a press body.

  As this type of blank supply device, a pallet on which a plurality of stacks made up of stacked plate blanks are stacked, and a plurality of stacks are sequentially picked up and picked up one by one, the topmost blank. What consists of the adsorbing member which supplies this to a press main body is known (refer patent document 1).

  In the blank supply device, one blank is supplied to the press body one by one, but a plurality of blanks may be supplied to the press body at the same time.

  When a stack is loaded on a pallet, a forklift or the like is usually used. Only one stack is placed on the forklift arm. A forklift loads stacks one by one on a pallet. In this way, the interval between adjacent stacks loaded on a pallet using a forklift has been likely to increase.

When blanks are supplied to the press body from the stack loaded on the pallet with a wide interval, the blanks in the press body also remain wide. In this case, a mold having a large area is required. Further, if the stack interval is set to an optimum dimension, the work with the forklift and the crane is difficult, the setup time becomes long, and the work loss occurs.
Japanese Utility Model Publication No. 63-6131

  An object of the present invention is to provide a blank supply device that can supply a plurality of blanks at the same time and can easily adjust a stack interval such as narrowing the interval of supplied blanks.

  The blank supply device according to the present invention includes a stacking device for stacking plate blanks supplied to the press body in a stacked state, and a transport unit for transporting the blank from the stacking device to the press body. The left and right cradles, the left lifter that lifts the left cradle and the right lifter that lifts the right cradle, It consists of a right cleanser that moves the blank in the left-right direction.

  In the blank supply device according to the present invention, the blanks stacked on the left and right cradles are moved so as to reduce the interval between them. Then, the left and right blanks with a narrow interval are supplied to the press main body while maintaining the narrow interval. Therefore, two blanks can be simultaneously supplied to the press body at a narrow interval.

  Furthermore, a positioning device for positioning the blank on the stacking device before supplying it to the press main body is provided, and the transporting means transports the blank from the stacking device to the positioning device, and the press from the positioning device. If it consists of the 2nd conveying apparatus which conveys a blank to a main body, a blank can be more accurately stably conveyed in a press die by positioning a blank correctly.

  Moreover, it is preferable that each lifter consists of a cross-link mechanism.

  Further, when each crane saver is provided with a plurality of parallel transport chains mounted on the upper surface of the corresponding cradle and extending in the left-right direction, each crane saver can have a simple configuration.

  Further, when the first transport device is made of a destacking robot and the second transport device is made of a loading robot, the degree of freedom in layout of the loading device, the positioning device, and the like can be increased.

  In addition, if the portal frame is provided so as to straddle the loading device in the left-right direction, and the trunk of the stacking robot is attached to the top of the portal frame so as to be movable in the left-right direction, the horizontal direction of the stacking robot Can be set freely.

  In addition, when the partition fence is arranged so that it can move in the left-right direction above at least one of the left and right cradle, when supplying the blank from only one of the left and right cradle, If the partition fence is positioned between the left and right cradle, if the blank is loaded on the other cradle while supplying the blank from one cradle, the partition fence will be safe at this time. It will act as a fence, and supply work can be done safely.

  According to the present invention, it is possible to supply a plurality of blanks at the same time, and further, it is possible to narrow the interval between the supplied blanks, and to effectively use the mold area.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the following description, front and rear refer to FIG. 3 as a reference, and the upper side of FIG. .

  Referring to FIG. 1, a press main body 11 and a blank supply device 12 arranged behind the press main body 11 are shown.

  The press body 11 includes front and rear and left and right uprights 21 standing at four corners, and a bolster 22 arranged to move left and right through the front and rear uprights 21. A mold 23 is placed on the bolster 22.

  The blank feeding device 12 includes a horizontal flat floor frame 31, a loading device 32 provided at the front of the floor frame 31, a positioning device 33 provided at the rear center of the floor frame 31, and a rear view. A portal frame 34 provided on the floor frame 31 so as to straddle the loading device 32 is provided.

  The loading device 32 includes a left cradle 41 and a right cradle 42, a left lifter 43 that lifts and lowers the left cradle 41, a right lifter 44 that lifts and lowers the right cradle 42, and a blank B1 on the left cradle 41 in the horizontal direction. And a right cleanser 46 for moving the blank B1 on the right cradle 42 in the left-right direction.

  The left cradle 41 and the right cradle 42 are rectangular flat plates that are long in the left-right direction. The left lifter 43 and the right lifter 44 are formed of a cross link mechanism. The left cleanser 45 and the right cleanser 46 are composed of a plurality of parallel transport chains that are mounted on the upper surfaces of the corresponding cradles 41 and 42 and extend in the left-right direction.

  A pair of upper and lower horizontal guide rails 47 extending in the left-right direction are provided on both front and rear sides of the right pedestal 42. A vertical partition 48 is supported by these guide rails 47 so as to be movable left and right.

  The positioning device 33 includes a legged horizontal flat plate positioning table 51 provided at substantially the same level as the mold 23, and a plurality of movable positioning members 52 protruding upward from the upper surface of the positioning table 51. . These positioning members 52 are movable in any one of front and rear and left and right.

  The portal frame 34 includes front and rear and left and right pillars 53 and a horizontal ceiling frame 54 mounted on these pillars.

  A stacking robot 61 is suspended from the lower surface of the ceiling frame 54. The destacking robot 61 includes a trunk portion 62 and an arm 63. The trunk 62 is supported by the ceiling frame 54 so as to be movable left and right. A blank suction member 64 is attached to the tip of the arm 63. A loading robot 71 is provided so as to be located on the left side of the positioning device 33. As with the destacking robot 61, the loading robot 71 includes a body 72, an arm 73, and a blank 74 suction member.

  1 to 3 show a state in which two blanks B1 are supplied to the press body 11 at the same time. The cradle 41, 42 is positioned at the lower limit of the lifting stroke by the lifters 43, 44. A number of substantially square blanks B1 are stacked on the left and right cradles 41 and 42, respectively. The partition fence 48 is located at the right end of the guide rail 47.

  The loading of the blank B1 is performed by, for example, a forklift. For example, the blank B1 is stacked at the center in the left-right direction of the cradle 41, 42. By the crane savers 45 and 46, the blank B1 on the left cradle 41 is moved to the right, and the blank B1 on the right cradle 42 is moved to the left. Thereby, the space | interval of the blank B1 on the left and right receiving bases 41 and 42 is set appropriately.

  By the stacking robot 61, the blanks B1 on the left and right cradles 41 and 42 are removed one by one from the uppermost one. As a result, the height of the blank B1 decreases, but the lifters 43 and 44 raise the cradles 41 and 42 so that the level of the uppermost blank B1 is constant.

  The destacking robot 61 conveys the blank B1 from the receiving bases 41 and 42 to the positioning base 51. On the positioning table 51, the blank B1 is sandwiched between the front and rear and the left and right by the positioning member 52. Thereby, the positioning of the blank B1 is performed.

  The positioned blank B1 is conveyed by the loading robot 71 from the positioning table 51 to the play body 11. Two blanks B1 are supplied on the mold 23 side by side.

  4 and 5 show a state in which blanks B2 are supplied to the press body 11 one by one. In this example, the size of the blank B2 is substantially the sum of the two blanks B1 supplied simultaneously described above. The blank B2 loaded on the left cradle 41 is being supplied to the press body 11. During this time, the next supplied blank B2 is prepared on the right cradle 42. In this case, the partition fence 48 is moved between the left and right cradles 41 and 42. Thereby, the blank supply operation by the destacking robot 61 and the blank stacking operation by the forklift or the like can be performed simultaneously while avoiding danger.

It is a front view of the blank supply apparatus by this invention. It is the same side view. FIG. 3 is a horizontal sectional view taken along line III-III in FIG. 1. It is explanatory drawing which looked at the supply operation | movement of the blank different from the blank shown in FIGS. 1-3 from the front side. It is explanatory drawing seen from the plane of the blank supply operation | movement.

Explanation of symbols

11 Press body
12 Blank feeder
32 Loading device
33 Positioning device
34 Portal frame
41, 42 cradle
43, 44 Lifter
45, 46 Clen saver
48 Partition fence
61 Destacking robot
71 loading robot
B1, B2 blank

Claims (7)

It comprises a stacking device 32 for stacking the plate blanks B1 and B2 supplied to the press body 11 in a stacked state, and a transport means for transporting the blanks B1 and B2 from the stacking device 32 to the press body 11. The loading device 32 includes a left cradle 41 and a right cradle 42, a left lifter 43 that lifts and lowers the left cradle 41, a right lifter 44 that lifts and lowers the right cradle 42, and blanks B1 and B2 on the left cradle 41. A blank supply device comprising a left cleanser 45 that moves in the left-right direction and a right cleanser 46 that moves the blanks B1, B2 on the right cradle 42 in the left-right direction. A positioning device 33 is provided for positioning the blanks B1 and B2 on the loading device 32 before being supplied to the press main body 11, and the conveying means conveys the blanks B1 and B2 from the loading device 32 to the positioning device 33. The blank supply device according to claim 1, comprising: one transport device and a second transport device that transports the blanks B 1 and B 2 from the positioning device 33 to the press body 11. The blank feeding device according to claim 1 or 2, wherein each lifter (43, 44) comprises a cross link mechanism. The blank supply device according to any one of claims 1 to 3, wherein each crane saver (45, 46) is composed of a plurality of parallel transport chains that are mounted on the upper surfaces of the corresponding receiving bases (41, 42) and extend in the left-right direction. The blank supply device according to any one of claims 1 to 4, wherein the first transport device includes a destacking robot 61, and the second transport device includes a loading robot 71. The portal frame 34 is provided so as to straddle the loading device 32 in the left-right direction, and the trunk portion 62 of the stacking robot 61 is attached to the top of the portal frame 34 so as to be movable in the left-right direction. Blank feeder. The blank supply apparatus according to any one of claims 1 to 6, wherein the partition fence 48 is disposed so as to be movable in the left-right direction above at least one of the left and right cradles 41,42.

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